CN2617303Y - Tableware cleaner - Google Patents

Abstract

The tableware cleaning machine of the utility model can reliably switch the cleaning channels even when foreign food such as leftovers flows into the water separating device. The tableware cleaning machine of the present utility model is provided with a water diversion device 37 for switching the cleaning device 27 supplied with washing water, and the water diversion device 37 is provided with a valve housing 40 and a valve body 41 which can rotate freely in the valve housing 40 . The valve casing 40 has a plurality of outlets 39 respectively communicating with the cleaning device 27 . Along with the rotation of the valve body 41 , the outlet 39 supplied with washing water is also switched. At the same time, the valve body 41 is configured to be movable and can be removed from the surface on which the outlet 39 is provided.

Description

dish washer

technical field

The utility model relates to a tableware cleaning machine for cleaning tableware by spraying washing water.

Background technique

The structure of an existing general dishwasher is shown in FIG. 40 . The composition thereof will be described below.

As shown in the figure, a washing tank 2 is provided inside the main body 1 of the dishwasher, and cold water or hot water is supplied to the washing tank 2 through a water inlet valve 3 . The bottom of the cleaning tank 2 is provided with a drainage hole 4, which communicates with a cleaning pump 5 driven by a motor, and the washing water circulates in the cleaning tank 2 under the action of the cleaning pump 5. In addition, the drain hole 4 also has a leftover filter screen 6 for catching leftovers.

That is to say, the washing water supplied to the washing tank 2 is sucked by the washing pump 5 after passing through the leftovers filter 6 , and then supplied to the washing device (washing nozzle) 7 provided at the bottom of the washing tank 2 by the washing pump 5 . The washing water sprayed from the washing nozzle 7 circulates through the path of washing the tableware and then returning to the drain hole 4 . At this time, the leftovers and the like that fall off from the object to be cleaned (tableware) 9 flow into the leftovers filter 6 together with the washing water, and the larger leftovers that cannot pass through the leftovers filter 6 are washed by the leftovers filter 6. Catch up.

In addition, a heater 8 for heating the washing water is provided between the cleaning nozzle 7 and the bottom of the cleaning tank 2, and a tableware basket 10 is provided above the cleaning nozzle 7, and the function of the tableware basket 10 is to make the tableware 9 neatly arranged therein. , so that the washing water can be effectively sprayed onto the tableware 9, improving the cleaning efficiency. In addition, the drain pump 11 drains the washing water out of the machine through the drain hose 12 .

However, in the existing dishwasher, the washing water is only sprayed from below for the objects to be cleaned, such as tableware of various shapes used in general households, etc., which are set in the dish basket 10, so the dish basket 10 needs to be removed. It was difficult to adequately wash all the dishes out of 9 out of 10. In addition, if it is not sprayed from above the washing tank, fine leftovers tend to accumulate on the bottom of tableware with a bottom such as teacups and soup bowls, or the overall washing performance is not sufficient.

In order to solve the above-mentioned problems, a solution may be adopted in which a plurality of washing nozzles are used to spray washing water from a plurality of directions. However, to carry out a large amount of spraying at the same time, the amount of influent water stored in the cleaning tank must of course also be a lot. Like this, because the increase of water inflow causes the temperature rising time of washing water to also become longer, as a result, working time can be prolonged, and the power consumption amount of power consumption also increases, and water consumption also increases, and also needs to adopt large-scale cleaning pump. Therefore, there are many problems such as increase in cost, increase in noise due to simultaneous injection of a large amount of washing water, and increase in vibration.

In addition, in order to solve the above problems, it is also possible to consider the solution of using multiple cleaning pumps. However, in this way, a washing pump needs to be provided for each washing nozzle, and the proportion of the volume of the washing mechanism to the entire tableware washing and drying machine will increase. There arises a problem that the volume necessary for installing the dishwasher cannot be sufficiently ensured, or the main body of the dishwasher becomes unnecessarily large.

In this regard, it has been proposed to use a switching device for selectively switching the cleaning device that supplies the washing water, and to perform a high-efficiency cleaning method from multiple directions with a small amount of water. Specifically, switching is performed with a 3-way valve, or the valve body is driven by an electric motor. In addition, switching may be realized by operating the washer pump intermittently without using an electric drive device such as a motor.

The structure of switching the valve body with an electric motor is shown in Japanese Patent Laid-Open Publication No. 2001-218721. As shown in Figure 41, a cylindrical valve body 14 with a slightly smaller diameter is arranged in the cylindrical valve housing 13, and an opening 15 is arranged on the cylindrical part of the valve body 14, and the cylindrical part of the valve housing 13 A plurality of outflow ports 16 are arranged on the top, and these outflow ports 16 communicate with each of the plurality of cleaning devices. In addition, a drive motor 17 for rotating the valve body 14 is also provided to form a water diversion device 19 . When the washing pump 5 is in operation, the washing device 7 that sprays washing water can be sequentially switched by rotating the valve body 14 .

However, in the above structure, the slight gap between the valve housing 13 and the valve body 14 is substantially constant, and when the washing water is circulated with foreign objects such as leftovers and toothpicks, the foreign objects are stuck between the opening 15 and the outlet 16. During time, valve body 14 can be stuck, can't rotate, and water diversion device 19 just can't work, has just produced the problem that can't realize the cleaning performance of regulation like this. In addition, the valve housing 13 and the valve body 14 may be damaged.

Utility model content

The utility model aims to solve the above-mentioned problems in the prior art. Its first purpose is to ensure that the valve body can reliably switch the washing water even when foreign objects such as leftovers and toothpicks are mixed in the washing water. In addition, the second object of the present invention is to provide a water diversion device capable of preventing clogging by foreign matter, less water leakage, and high branching efficiency.

In order to achieve the above object, in the tableware washing machine of the present utility model, the washing device that supplies the washing water from the washing pump is switched by the water dividing device. Inlet, a valve housing with a plurality of outlets respectively communicating with a plurality of cleaning devices, and a valve body movable in the valve housing. With the rotation of the valve body, the outlet for washing water supply is switched, and at the same time, the valve body Can be removed from the outflow port.

In this way, even if foreign matter flows into the water diversion device and gets caught between the valve body, the rotation of the valve body can be continued by moving the valve body away from the outlet.

The utility model described in the technical solution 1 of the utility model is a tableware washing machine, comprising: a cleaning tank for accommodating objects to be cleaned; a cleaning pump for pressurizing the washing water; a plurality of washing devices of the spray ports; and a water diversion device for switching the washing device supplying the washing water from the washing pump, the water dividing device includes a washing water pressurized by the washing pump. An inlet, a valve casing of a plurality of outlets communicating with a plurality of cleaning devices, and a valve body arranged to be movable in the valve body, the rotation of the valve body makes the outlet for washing water supply flow. switch, and the valve body can move away from the surface where the outlet is provided. In this way, without increasing the water inflow, any object to be cleaned can be sprayed with washing water from multiple directions, and the cleaning performance can be improved. In addition, since cleaning can be completed in a shorter time, high-efficiency cleaning can be realized. Moreover, since the amount of water inflow and the number of flushing are reduced, water and energy saving can be realized. In addition, the placement position and placement method of the object to be cleaned in the tableware basket can not be selected, and a dish washing machine with better placement properties can be realized. In addition, since the valve body can be removed from the surface where the outlet is provided, the washing water flowing with foreign objects such as leftovers and toothpicks circulates. When the outlet is removed, the valve body can continue to rotate. Therefore, the valve body will not be stuck when a foreign matter is stuck in, and the phenomenon of inability to rotate and damage to the valve housing and the valve body will not occur. In the state that there is a foreign matter stuck, all the cleaning devices will be supplied with washing water, but the washing water supplied at this time is not enough. When turning to the next outlet, the foreign matter is removed, and the washing water can be normal again. Therefore, the object to be cleaned can be cleaned efficiently, and a water diversion device that can remove foreign matter even if it is stuck in the gap between the valve casing and the valve body is provided.

The utility model described in the technical solution 2 is the utility model described in the above-mentioned technical solution 1, wherein the valve body can be removed from the surface provided with the outlet when the cleaning pump is working. In this way, even if there are foreign objects such as leftovers and toothpicks stuck between the valve casing and the valve body during the operation of the cleaning pump, the foreign objects can be removed when the next outflow port is turned, and the washing water can be switched normally again, thereby ensuring high efficiency. Thoroughly clean the object to be cleaned. That is, it is possible to provide a water distributing device that can remove foreign matter even if it gets caught in the gap between the valve case and the valve body.

The utility model described in the technical solution 3 is the utility model described in the above-mentioned technical solution 1, wherein the valve body can be inclined from the direction of the rotation axis of the valve body. In this way, foreign matter is caught in the part of the gap between the outlet and the valve body, and when an inclined force acts on the valve body under the pressure of washing water, etc., it can prevent the valve body from being stuck into the valve like a sled rod. In the body, etc., the valve body cannot be switched.

The utility model described in claim 4 is the utility model described in claim 1 above, in which the valve body moves away from the outflow port in a stopped state of the washer pump. In this way, even if a foreign matter is stuck between the outflow port and the valve body, and the foreign matter is not removed during the operation of the cleaning pump, the gap will definitely expand when the cleaning pump stops, so that the stuck foreign matter can be reliably removed Lose. In addition, even if the foreign matter has not fallen off in this state, the water flow generated when the cleaning pump starts to operate will flush the foreign matter to the side of the outlet, so that it will not continue to be stuck in the gap.

The utility model described in claim 5 is the utility model described in claim 4 above, and further includes an elastic force applying device that applies elastic force to the valve body in a direction of detaching from the outflow port. In this way, when a foreign matter is caught between the valve case and the valve body and the cleaning pump is stopped, the situation that the valve body cannot be separated from the outlet can be prevented. In addition, since the valve body can be separated from the outlet regardless of the direction in which it is installed, there is an advantage that the installation direction of the water diversion device does not need to be selected.

The utility model described in claim 6 is the utility model described in claim 1 above, wherein the cleaning pump is temporarily stopped in the middle of the cleaning and rinsing steps. Foreign matter stuck between the outflow port and the valve body can be removed when the cleaning pump stops, but this can only be achieved at the end of the cleaning and flushing steps, and the cleaning in this step has always been poor, and the cleaning performance will decline . Therefore, by temporarily stopping the cleaning pump several times in the middle of each step, the time for incomplete switching can be shortened, and the decline in cleaning performance can be suppressed to a minimum.

The utility model described in the technical solution 7 is that in the utility model described in the above technical solution 1, a filter screen for leftovers is provided to catch the leftovers when the washing water passes through, and the distance between the valve body and the outlet is set into a gap larger than the leftovers strainer. In this way, since there is a gap between the outflow port and the valve body that is larger than the size of foreign objects that may flow into the water distribution device, all foreign objects that may flow into the water distribution device can be removed, thereby providing a highly reliable water distribution device.

In the utility model described in claim 8, in the utility model described in claim 1 above, the outflow port for supplying washing water is switched by rotating the valve body, and at the same time, the outflow port and the valve body The opposite surfaces of the valve body are inclined relative to the direction of the rotation axis of the valve body. In this way, if the valve body is moved in the direction of the rotation axis of the valve body, the distance between the facing surface between the outflow port and the valve body will be enlarged. In the gap between the valve bodies, when the valve body is moved away, the foreign matter can also be removed from the gap. Therefore, there will be no situation where the valve body cannot move after a foreign object is caught in the gap, so that the valve body can be switched reliably.

The utility model described in the technical solution 9 is in the utility model described in the above-mentioned technical solution 8, the leftovers filter screen that can catch the leftovers when the washing water passes through is provided, and the valve housing and the valve body The minimum gap is set larger than the gap of the leftovers strainer. In this way, since there is a gap between the outflow port and the valve body that is larger than the size of the foreign matter that may flow into the water distribution device, it can prevent foreign matter from being stuck in the gap and the valve body cannot be switched.

The utility model described in the technical solution 10 is the utility model described in the above-mentioned technical solution 8, wherein the outlet is provided to protrude into the valve body. In this way, the contact area between the outflow port and the valve body will be minimized, foreign matter will not be easily stuck between the outflow port and the valve body, and the number of poor switching can be reduced.

The utility model described in claim 11 is the utility model described in claim 8 above, wherein the shape of the outlet is fan-shaped. In this way, the shape formed by the multiple outlets is roughly circular, the shape of the valve body can be made the smallest, and a sufficient gap can be provided between the valve housing and the valve body, which can prevent foreign objects from being stuck, and the water distribution device can also be small. change. In addition, since the shape of the valve body is roughly circular, it is difficult for foreign matter to get caught between the valve housing and the valve body. In addition, the movement resistance of the valve body can be reduced, the movement of the valve body becomes smooth and can be completed in a short time, the stop time of the cleaning pump can be shortened, and efficient cleaning can be performed in a shorter time.

The utility model described in the technical solution 12 is in the utility model described in the above-mentioned technical solution 8, the valve body has an opening for washing water to pass through the valve body, and the opening is connected to the valve body. A cutout shape in which the outlines are joined. Since the opening is not in the shape of a hole but in the shape of a slit, even if a foreign object tends to be caught between the valve body and the opening, the probability of being stuck can be reduced because there is a place for the foreign object to avoid.

The utility model described in the technical solution 13 is that in the utility model described in the above technical solution 1, the outlet with washing water supply is switched along with the rotation of the valve body, and at the same time, the valve body is activated by the cleaning pump. The pressure of the post-press washing water is pressed against the outflow port. In this way, the sealing performance of the valve body can be improved, the leakage of washing water to places other than the outlet for washing water supply can be greatly suppressed, more washing water can be sprayed from the washing device, and the washing performance can be further improved.

The utility model described in the technical solution 14 is in the utility model described in the above technical solution 13, the valve body is separated from the outlet when the cleaning pump is stopped, and is in contact with the outlet when the cleaning pump is working, so that the cleaning Water is supplied to a prescribed outflow port. In this way, when the cleaning pump is stopped, the valve body is necessarily separated from the outlet, so that the trapped foreign matter can be reliably removed, thereby preventing the washing water from being sprayed on the entire cleaning tank due to poor switching and poor cleaning.

The utility model described in technical solution 15 is the utility model described in technical solution 13 above, wherein the valve body is arranged to be able to move forward and backward freely relative to the outflow port, and moves approximately linearly before coming into contact with the outflow port. In this way, the valve body that moves under the action of the pressurized washing water does not rotate when it bears against the outflow port, and the valve body does not move when it is against the outflow port. There is almost no wear on the surface, and the change in diameter over time during use can be reduced, which can prevent the switching performance and component strength from deteriorating from the original state due to wear.

The utility model described in the technical solution 16 is that in the utility model described in the above technical solution 13, the rotation angle of the valve body when the cleaning pump is stopped is smaller than the rotation angle of the valve body when the cleaning pump is working. Be big. In this way, the distance that the valve body rotates while being pressurized will be reduced, and the wear of the engaging parts that cause the valve body to rotate will be reduced. In addition, the time from when the cleaning pump starts to work to when the valve body contacts the outlet is shortened, and the probability of foreign matter being caught can be reduced.

The utility model described in the technical solution 17 is that in the utility model described in the above technical solution 13, the rotation angle of the valve body when the cleaning pump is stopped is smaller than the rotation angle of the valve body when the cleaning pump is working. Be small. In this way, the rotation angle when the cleaning pump is stopped will be reduced, the moving time of the valve body will be shortened, the time for the cleaning pump to stop working can also be shortened, and the cleaning efficiency can be improved.

The utility model described in the technical solution 18 is that in the utility model described in the above technical solution 13, the rotation angle of the valve body when the cleaning pump is stopped and the rotation angle of the valve body when the cleaning pump is working are the same. Much the same. In this way, the degree of inclination of the engaging member which limits the rotation angle when ascending and descending will be the same on the ascending side and descending side, and reliable operation without malfunction can be realized in both directions.

The utility model described in the technical solution 19 is the utility model described in the above technical solution 13, which is provided with an engaging part that makes the valve body perform a roughly linear motion and a rotating action with the intermittent operation of the cleaning pump. The part is arranged on the rotation center side of the valve body with respect to the outflow port. In this way, it is possible to reduce the friction of the meshing parts generated with the movement of the valve body, stabilize the rotation of the valve body, reduce the wear of the meshing parts, and reduce the probability of poor switching.

The utility model described in the technical solution 20 is the utility model described in the above-mentioned technical solution 13, and it is also equipped with an engaging part that makes the valve body perform a roughly linear motion and a rotating action when the cleaning pump is intermittently operated. Parts are disposed between adjacent outflow ports. In this way, there are no engaging parts inside and outside the outflow port, and the size (outer diameter) of the valve body can be minimized while the outflow area is the same, so that the water diversion device can be miniaturized.

The utility model described in technical solution 21 is that in the utility model described in the above technical solution 13, both or either of the parts where the valve body and the outlet are in contact with each other are made of elastic bodies, and the gap between the valve body and the outlet is The sealing performance can be improved dramatically. In addition, this structure exhibits a better effect than the structure in which the valve body moves substantially linearly when it comes into contact with the outlet.

In the utility model described in claim 22, in the utility model described in claim 1, the shaft provided on either one of the valve body and the valve body is rotatably engaged with the hole provided on the other. In this way, during the relative movement between the valve body and the valve casing, the shaft and the hole near the center are close to or contact each other, and the area facing each other will be the smallest compared with the case of relative movement on the outer circumference of the valve body. The probability of foreign matter being trapped will also be reduced. In addition, even in the case of foreign matter stuck in the gap, the force required to rotate against its resistance is minimal, and the change in water flow in the valve housing can cause the valve body to move. In this way, even when the force to rotate the valve body is small, there is almost no possibility that the valve body cannot be rotated by foreign matter. Therefore, it is possible to prevent foreign matter from preventing switching of the water diversion device and cleaning in the entire cleaning tank, thereby providing a highly reliable cleaning device.

The utility model described in technical solution 23 is that in the utility model described in technical solution 22, a plurality of approaching parts are provided on the shafts and holes that cooperate with each other. Parts with large spaces. In this way, the contact between the shaft and the hole occurs only through a plurality of approaching parts, and the foreign matter is less likely to be trapped. Avoid the situation that the valve body cannot be switched due to foreign objects being stuck.

The utility model described in technical solution 24 is that in the utility model described in technical solution 22, the outer circumference of the shaft is provided with a rib-shaped part extending along the axis direction to form a close part, and at the same time, on the outside of the shaft and the hole Engagement parts for rotating the valve body are provided respectively, and when the washing water flows in the valve body during the operation of the washing pump, the ribs are aligned with the adjacent tops of the engagement parts on one side of the hole. In this way, the probability of foreign matter being caught in the gap between the shaft and the engagement member, which may be caught in foreign matter other than the gap between the shaft and the hole, can be reduced during operation, so that the reliability of the device against foreign matter can be further improved.

The utility model described in technical solution 25 is that in the utility model described in technical solution 24, a concave portion is provided between adjacent tops of the engaging parts on one side of the hole, and the rib portion and the concave portion relatively accurate. In this way, the possibility of foreign objects being lodged in the gap between the shaft and the mating part can be completely ruled out.

In the utility model described in claim 26, in the utility model described in claim 22, when the flow of washing water is stopped or reduced, the valve body starts to move and performs a rotation operation. In this way, when a foreign object is caught in the access member, if the valve body rotates while starting to move, the foreign object will move into the wide space between the access member and the access member, so that the foreign object can be reliably removed.

In the utility model described in claim 27, in the utility model described in claim 22, the center of the inflow port where the washing water flows into the valve casing is shifted toward the outer peripheral side from the rotation center portion of the valve body. In this way, a vortex rotating in the valve housing will be generated in the valve housing, and foreign materials such as leftovers with a higher specific water specificity, which account for most of the foreign materials, will move to the outside of the valve housing under the action of the vortex. Therefore, the foreign matter tends to stay away from the shaft and the hole located near the center of the valve housing, and the probability of foreign matter being caught in the gap between the shaft and the hole can be reduced.

In the utility model described in technical solution 28, in the utility model described in technical solution 1, the valve body is set to be rotatable along the inner surface of the valve housing, and the inner surface of the valve housing and the valve body facing each other A plurality of approaching portions are provided on the outer surface of the body, and a space larger than the volume of the approaching portions is formed between adjacent approaching portions. In this way, the relative movement between the valve body and the valve casing is only close to the part, and its area is smaller than that of the case where the relative movement is performed on the entire circumference, and the probability of foreign objects being caught can be reduced. In this way, it is possible to prevent the situation that the water separating device cannot be switched and cannot clean all the cleaning tanks caused by foreign matter, and a cleaning device with high reliability can be provided.

In the utility model described in technical solution 29, in the utility model described in technical solution 28, the inner surface of the valve housing and the outer surface of the valve body are roughly circular, and any one of the inner surface of the valve housing and the outer surface of the valve body facing each other is provided with a There are a plurality of protrusions constituting the access portion. In this way, the gap of the circular part other than the raised part is set so that no foreign matter can be caught, and the valve body and the valve casing only move relative to each other through a plurality of raised parts, and the area facing each other will become smaller, even if there is a foreign matter stuck Once the foreign matter is inserted into the gap, it will be easily removed due to the slight movement of the valve body, and the situation of foreign matter being stuck is less likely to occur, which can prevent the water distribution device from being unable to switch.

The utility model described in the technical solution 30 is the utility model described in the above-mentioned technical solution 1, and the valve body realizes the rotation movement through the intermittent operation of the cleaning pump. In this way, a dedicated electric drive device such as a motor is not required, thereby reducing the cost and realizing the miniaturization of the device.

The utility model described in the technical solution 31 is the utility model described in the above-mentioned technical solution 1, wherein the valve body realizes the rotation action under the action of the electric driving source. In this way, the valve body can be reliably rotated to switch the washing device supplied with washing water.

The utility model described in claim 32 is the utility model described in claim 31 above, wherein the electric drive source operates while the washer pump is stopped. In this way, the valve body can be rotated without the pressure of the washing water acting, thereby suppressing wear on the contact portion between the valve body and the outlet, and improving the life and reliability of the water diversion device.

Description of drawings

Fig. 1 is a cross-sectional view of the main components of the dishwasher in Embodiment 1 of the present utility model.

Fig. 2 is a cross-sectional view of the main components of the dishwasher.

Fig. 3 is a perspective view of the water separating device of the dishwasher.

Fig. 4 is a cross-sectional view of the cleaning pump in the water separating device of the dishwasher in a working state.

Fig. 5 is a cross-sectional view of the washing pump in the water separating device of the dishwasher in a stopped state.

Fig. 6 is a bottom view of a state where foreign objects are stuck in the water separating device of the dishwasher.

Fig. 7 is a cross-sectional view of a foreign object stuck in the water separating device of the dishwasher.

Fig. 8 is a bottom view of the transmission mechanism between the motor shaft and the valve body of the dishwasher.

Fig. 9 is a cross-sectional view of a state in which an elastic force applying device is provided on the water separating device of the dishwasher.

Fig. 10 is a perspective view of a representative foreign object.

Fig. 11 is a sectional view showing main components of a fixed nozzle used in the dishwasher.

Fig. 12 is a sectional view showing main components of another washing device used in the dishwasher.

Fig. 13 is a sectional view showing main components of another washing device used in the dishwasher.

Fig. 14 is an exploded oblique view of the water separating device of the dishwasher in Embodiment 2 of the present utility model.

Fig. 15 is a cross-sectional view of the washing pump of the water diverting device in the dish washing machine in a working state.

Fig. 16 is a bottom view of the valve body in the water diverting device of the dishwasher.

Fig. 17 is a cross-sectional view of the washing pump in the water separating device of the dishwasher in a stopped state.

Fig. 18 is a detailed schematic diagram of the engaging parts of the water separating device of the dishwasher.

Fig. 19 is a detailed schematic diagram of other engaging components of the water separating device of the dishwasher.

Fig. 20 is a detailed schematic diagram of other engaging components of the water separating device of the dishwasher.

Fig. 21 is a cross-sectional view of a state where foreign matter is stuck between the outlet of the water diverting device of the dishwasher and the valve body.

Fig. 22 is a cross-sectional view of the water separating device provided with the elastic force applying device in the dishwasher.

Fig. 23 is a cross-sectional view of another water separating device of the dishwasher.

Fig. 24 is a cross-sectional view of other water separating devices of the dishwasher.

Fig. 25 is a cross-sectional view of other water diversion devices of the dishwasher

Fig. 26 is a sectional view of the water diverting device of the dishwasher in the third embodiment.

Fig. 27 is a perspective view of other water separating devices of the dishwasher in Embodiment 3.

Fig. 28 is a cross-sectional view of another water separating device of the dishwasher of the third embodiment.

Fig. 29 is a plan view of the outlet of the water diversion device of the dishwasher of the fourth embodiment.

Fig. 30 is a top view of the valve body of the water diverting device of the dishwasher of the fourth embodiment.

Fig. 31 is an exploded perspective view of the main components of the dishwasher of the fifth embodiment.

Fig. 32 is a top view of the valve body in the water diverting device of the dishwasher according to Embodiment 6 of the present invention.

Fig. 33 is a schematic diagram showing a state where a foreign object is stuck near the water distribution device of the dishwasher.

Fig. 34 is a detailed schematic view showing the moving direction of the valve body of the dishwasher.

Fig. 35 is a schematic diagram of a state in which a foreign matter falls off from the vicinity of the water separator of the dishwasher.

Fig. 36 is a partial side view showing the relationship between the rib portion and the top of the water separator of the dishwasher.

Fig. 37 is a partial side view showing the relationship between the rib portion and the top of the water separator of the dishwasher.

Fig. 38 is a top view of the valve body of the water diversion device of the dishwasher in Embodiment 7 of the present utility model.

Fig. 39 is a top view of the valve body of another water diversion device of the dishwasher.

Fig. 40 is a sectional view of main components of a conventional dishwasher.

Fig. 41 is a cross-sectional view of the water separating device of the dishwasher.

Among the above-mentioned accompanying drawings, reference numeral 22 is a cleaning tank, 26 is a cleaning pump, 27 is a cleaning device (cleaning nozzle), 29 is a leftover filter, 37 is a water dividing device, 38 is an inlet, 39 is an outlet, and 40 41 is a valve body, 42 is an opening, 44 is an upper engaging part (engaging part), 45 is a lower engaging part (engaging part), 50 is a potential device, 60 is a shaft part, 61 is a hole part, 63 is a rib (approaching part), 64 is a top, and 65 is a recess.

Detailed ways

Embodiments of the utility model are described below with reference to the accompanying drawings.

(Example 1)

As shown in FIGS. 1-5 , the main body 20 of the dishwasher is provided with a cleaning tank 22 that can be opened and closed through a door 21 . The water inlet valve 25 supplies washing water into the washing tank 22 . Washing pump 26 pressurizes the washing water, and supplies it to washing device (washing nozzle) 27 provided with a plurality of spray holes, and this washing device 27 sprays washing water. In the cleaning device 27, nozzles 27a, 27b sprayed from the bottom of the tableware basket 24, nozzles 27c sprayed from the upper right, nozzles 27d sprayed from the left side, etc. are provided at four positions. Spinning nozzle with shaft rotation.

The bottom of cleaning tank 22 is provided with the drain port 28 that communicates with the suction side of cleaning pump 26, and this drain port 28 is provided with the leftovers filter screen 29 that is used to collect leftovers and the heating device 30 that heats usefulness, and is provided with detection. A temperature sensor 31 for the temperature of the cleaning tank 22 . The drain pump 32 is used to drain the washing water in the washing tank 22 . The blower 33 sends air into the cleaning tank 22 through the air supply passage 34 , and the exhaust gas is discharged from the exhaust port 35 .

The outlet channel 36 of the cleaning pump 26 is provided with a water dividing device 37 for selectively switching the cleaning device 27 supplying washing water. 26 The inflow port 38 for the pressurized washing water to flow in, the valve case 40 having four outflow ports 39 communicated with the four cleaning devices 27 respectively, and the rotatable valve body 41 provided in the valve case 40 are formed. The valve body 41 is provided with an opening 42 through which washing water passes.

The four outflow ports 39 are connected to the cleaning device 27 through respective cleaning passages 43 . In addition, a drive motor (electric drive source) 54 that drives the valve body 41 to rotate for switching the outlet 39 communicating with the opening 42 is also provided, and the motor shaft 55 of the drive motor 54 maintains a gap. Keep transmission connection with the valve body 41.

In addition, the drawings such as FIG. 3 are only conceptual diagrams. The actual structure of the valve housing 40 is divided into upper and lower parts, which are combined by means of screw fixing, insertion connection, welding and welding. In addition, when the cleaning tank 22 is made of resin, etc., the bottom surface of the cleaning tank 22 may constitute a part of the valve case 40 integrally formed therewith.

First, the basic operation of the dishwasher in the above configuration will be described. Put the objects to be cleaned 23 such as tableware into the tableware basket 24 and put them into the washing tank 22 . After putting in the detergent, close the door 21, close the opening part of the main body 20 of the dishwasher, and start the washing operation. A washing step of washing off dirt on the object to be cleaned 23 , a rinsing step of rinsing off attached detergent and leftovers, and a drying step of drying water droplets adhering to the object to be cleaned 23 are performed in sequence.

First, the water inlet valve 25 is opened, and a predetermined amount of washing water is poured into the washing tank 22. After the washing water is pressurized by the washing pump 26, the washing water is sprayed out from the washing device 27. At this time, a heating device 30 such as a sheath heater provided in the washing tank 22 is energized to perform the washing process while heating the washing water. In addition, the temperature sensor 31 detects the temperature of the washing tank 22, and when the temperature is equal to or higher than a predetermined value, the power supply to the heating device 30 is stopped.

The washing water is sucked into the washing pump 26 after passing through the leftovers filter 29 , and is supplied by the washing pump 26 to a washing device (washing nozzle) 27 provided on the inner bottom of the washing tank 22 . Then, the washing water is sprayed out from the cleaning device 27, and returns to the drain port 28 after cleaning the objects 23 to be cleaned such as tableware, and then circulates through the above passage. At this time, the leftovers and the like washed off from the object to be cleaned 23 flow into the leftovers filter screen 29 together with the washing water, and the large leftovers that do not pass through the leftovers filter screen 29 are caught by the leftovers filter screen 29 .

After the cleaning step of the specified time is finished, the washing water containing dirt is discharged to the outside of the machine by the drain pump 32, and then new washing water is injected. The washing pump 26 starts to work again, and the washing water is jetted out from the washing device 27 again, so as to rinse away the detergent, residual vegetables and the like attached to the washing object 23 . After the operation for a predetermined time, the washing water is drained, and the washing water is injected again. Such operations are repeated, and the rinsing step is continuously performed about 3 times. Finally, the washing water is discharged out of the machine, and the rinsing step is completed.

Then carry out the drying step, make the blower 33 work, and the outside air is sent into the cleaning tank 22 through the air supply passage 34, and then discharged from the exhaust port 35. At this time, the heating device 30 is energized, and the water droplets adhering to the object 23 to be cleaned are evaporated through the two effects of blowing air and heating. After the drying step is carried out for a predetermined time, the operation is terminated.

Next, the operation and action of the water diversion device 37 which is a characteristic component of this embodiment will be described. As shown in FIG. 4 , the valve casing 40 is roughly cylindrical, and its axial direction is generally arranged in the vertical direction. The inflow port 38 for the washing water pressurized by the cleaning pump 26 is arranged at the lower end of the valve casing 40. , the outflow port 39 is provided on the upper surface of the valve housing 40 . The valve body 41 is substantially in the shape of a flat plate, and the surface A (the surface opposite to the valve body 41 ) on which the outlet 39 is provided has a flat shape.

The valve body 41 and the motor shaft 55 maintain transmission with each other while maintaining a certain gap. The valve body 41 can also move up and down in addition to rotating, and can freely advance and retreat relative to the outlet 39 . When the cleaning pump 26 is in operation, the valve body 41 rises under the pressure of the washing water flowing in from the inlet 38 and approaches the outlet 39 . The drive motor 54 rotates the valve body 41, and the outlet 39 at the same position as the opening 42 will be supplied with washing water, and the cleaning device 27 connected with the outlet 39 will be sprayed with washing water.

By rotating the valve body 41, the outflow port 39 to which the washing water is supplied can be sequentially switched, and the washing device 27 spraying the washing water can be switched in the order of 27a, 27b, 27c, and 27d. At this time, the driving method of the driving motor 54 includes a continuous driving method, an intermittent driving method of stopping the opening portion 42 at the position of the outlet 39, and the like, and is not limited to these two methods.

In addition, in the case of the former method, there is no need to detect parts such as sensors for the position of the valve body 41, and the structure is relatively simple; in the case of the latter method, although devices such as position sensors are required, the switching efficiency is high. The position and spraying time of the cleaning device 27 can be selectively set according to the situation.

Under the effect of above-mentioned device, washing water does not need to supply 4 cleaning devices 27 at the same time, but supplies washing water sequentially, so the water supply volume will not be increased, and washing water can be sprayed from multiple directions for any object 23 to be cleaned. Therefore, the dirt adhering to the object 23 to be cleaned such as tableware can be cleaned in a short time, and efficient cleaning can be realized.

In addition, since the detergent and leftovers adhering to the objects to be cleaned 23 such as tableware can be washed away in a short time, the number of times of washing can be reduced. For example, the original 4 times can be reduced to 3 times. The amount of water supplied each time will not increase, and because the number of times is reduced, the time for heating the washing water by the heating device 30 can also be shortened, thereby saving energy and water.

In addition, since the number of washing nozzles 27 is increased without increasing the water intake, a washing method in which washing water is sprayed from multiple directions with respect to the object 23 to be washed such as tableware can be adopted. In this way, when the user puts the object to be cleaned 23 into the dish basket 24, it can be placed freely without considering the position, vertical placement, or horizontal placement, and can obtain a dishwasher with better placement properties. Moreover, even for tableware such as small square bowls, deep small bowls, and square plates that cannot be sufficiently cleaned by spraying washing water in one direction, the cleaning performance can be fully exhibited.

In addition, the spraying time from one cleaning device 27 can be switched from a few seconds to about one minute, so that efficient cleaning can be performed. But it is preferable to set all the cleaning devices 27 to spray at least once during each cleaning or flushing process. Therefore, the above-mentioned injection time can be set to about 10 seconds to 30 seconds.

Since the valve body 41 is driven by the driving motor (electric drive source) 54, the valve body 41 can be reliably rotated, thereby reliably switching the washing device 27 for supplying washing water.

In addition, as shown in FIG. 5 , the valve body 41 can also move away from the surface A on which the outlet 39 is provided. That is, the valve body 41 can move downward even when the washer pump 26 is in operation. Because foreign objects 49 such as leftovers and toothpicks can be mixed in the washing water and circulate together, as shown in Fig. in. If the valve body 41 is not separated from the outlet 39, some kinds of foreign matter 49 will cause the valve body 41 to be stuck, resulting in inability to switch. When the driving force of the driving motor 54 is very strong, the valve body 41 and the outlet 39 may be damaged.

Therefore, in the utility model, the valve body 41 can be moved as shown in Fig. 7 because it is set to be separated from the surface A provided with the outlet 39, so that foreign matter 49 can be avoided and the rotation can be driven. Not affected. When a foreign matter 49 is stuck in, all cleaning devices 27 have washing water supply, but the washing water supply at this moment is insufficient, and when turning to the position of the next outlet 39, the foreign matter 49 is washed away, Therefore, the washing water can be switched normally again, and the objects to be cleaned can be cleaned efficiently.

In addition, the foreign matter 49 can be various things, besides food, it may also be a fishbone, a toothpick, a rubber ring, plastic paper, or pieces of cutlery. In particular, slender objects such as toothpicks and cherry stems may pass through the leftovers filter regardless of their length, so countermeasures are necessary for such foreign objects.

The above-mentioned stuck foreign matter 49 can generally be removed after turning over one or several outlets 39, but there are also cases where the elongated foreign matter is difficult to remove. For this reason, when the washing pump 26 is temporarily stopped halfway, the valve body 41 is separated from the outlet 39 by its own weight during the stop, and the stuck foreign matter 49 is removed. In this way, the situation that the valve body 41 cannot be rotated due to foreign objects 49 being caught in the gap will not occur, so that the switching of the valve body 41 can be performed reliably.

Since the cleaning pump 26 will stop at least at the end of the cleaning and rinsing steps, for this cleaning, there is a possibility that the cleaning performance will decline due to poor switching, but from the next use, it will not be used. question. In addition, if the cleaning pump 26 is temporarily stopped several times in the middle of the cleaning and rinsing steps, the number of switching failures can be suppressed to a minimum, and a decrease in cleaning performance can be suppressed.

In addition, as shown in FIG. 7 , the valve body 41 may be inclined relative to the direction of its linear motion, that is, the up and down direction. When observing the transmission part of the valve body 41 and the motor shaft 55 taking the motor shaft 55 as a section from above, it can be seen that a gap 41a is provided between the motor shaft 55 and the valve body 41 as shown in Figure 8, and Can be tilted in all directions.

In this way, the valve body 41 can move smoothly even when a foreign object 49 is stuck. In addition, the end surface of the contact portion of the outlet 39 and the opening 42 can be chamfered, rounded, etc., so that the separation operation of the valve body 41 can be performed more smoothly.

In addition, even if a foreign object 49 is stuck in a part of the gap between the outlet port 39 and the valve body 41, the valve body 41 can be prevented from being damaged when an inclined force is applied to the valve body 41 due to the pressure of washing water, etc. Like a sled stick stuck in the valve case 40, etc., so that the valve body 41 cannot be switched.

In this way, the inclination angle at which the valve body 41 and the valve housing 40 will not be damaged can be set to an angle larger than the inclination angle at which a foreign object 49 of the same size as the gap of the leftover filter 29 is caught. In addition, the connection between the valve body 41 and the motor shaft 55 can be a universal joint, and of course a similar method can also achieve the same effect.

In addition, when the cleaning pump 26 starts to work, if there is a foreign object 49 stuck between the valve housing 40 and the valve body 41, all cleaning devices 27 will be supplied with washing water, and the supply of washing water may be insufficient. , but when the cleaning pump 26 is temporarily stopped, the distance between the outlet 39 and the valve body 41 will be increased, the foreign matter 49 will be removed, and the cleaning pump 26 can be switched without any problem when it starts working again, so that high efficiency can be achieved. The object 23 to be cleaned is thoroughly cleaned.

In addition, as shown in Figure 9, when the cleaning pump 26 stops working, in order to separate the valve body 41 from the outlet 39, an elastic force applying device 50 can also be provided to apply an elastic force on the valve body 41 in the direction of separating from the outlet 39. . In this way, when there is a foreign matter 49 stuck between the valve housing 40 and the valve body 41, and the cleaning pump 26 stops working, it can prevent the valve body 41 from being separated from the outlet 39, so that it can be reliably operated in the stopped working state. The foreign matter 49 is removed.

After adopting the above structure, no matter in which direction the valve body 41 is arranged, it can be separated from the outflow port 39, thus having the advantage that the water diversion device 37 can be arranged in any angle (direction). In addition, elastic bodies such as leaf springs and rubber may be used for the elastic force applying device 50 other than the illustrated coil springs.

In addition, when the cleaning pump 26 is working, the valve body 41 is pressurized to the side of the outlet 39 under the action of the pressure in the valve casing 40, that is, upward, and the sealing surface between the valve body 41 and the outlet 39 is tightly sealed. The degree of contact is enhanced, and the leakage of wash water can be greatly reduced, so that more wash water is sprayed from the washing device 27, and the washing performance can be further improved. If the valve body 41 and the outlet 39 can be deformed under the action of water pressure, the above-mentioned sealing performance can be further improved.

In addition, during the operation of the cleaning pump 26, the inside of the valve casing 40 is usually pressurized to about 20-40kPa, and the force acting on the valve body 41 is generally about 20-100N, although the force acting on the valve body 41 is different due to its size, so that it Press firmly on spout 39.

On the other hand, in the state where the valve body 41 is pressurized by washing water, great friction will be generated when the valve body 41 rotates, and the valve body 41 and the outlet 39 may be worn. This problem can be solved by deactivating the washer pump 26 while the drive motor 54 is operating. When the cleaning pump 26 stops, the valve body 41 is driven to rotate until it reaches the next specified position, and then the driving motor 54 is stopped to allow the cleaning pump 26 to work again. In this way, the valve body 41 will only abut against the outlet 39 without sliding, so there is almost no friction.

In this way, the life and reliability of the water dividing device 37 can be improved. In addition, even if the washer pump 26 and the drive motor 54 are operated partly at the same time, it is not necessary to completely stop the washer pump 26 as long as no wear is caused.

In addition, although it is desirable that the outflow port 39 and the valve body 41 can be in close contact, even if there is a slight gap due to the dimensional accuracy of the parts, or if the slight gap is set to be less than 1mm, although the flow to the other flow The outlet 39 has some water leakage a little, but the water diversion device 37 can fully play the water diversion function.

In addition, the distance between the valve body 41 and the outflow port 39 is more than the gap in the leftovers filter screen 29, so that a ratio may be formed between the outflow port 39 and the valve body 41 and may pass through the leftovers filter screen 29 and flow into the water dividing device 37. The size of the foreign matter 49 requires a large clearance, so the foreign matter 49 stuck therein can be removed during the stoppage of the cleaning pump 26, thereby providing the water separating device 37 that can always maintain high reliability.

In addition, the gap in the above-mentioned "more than the gap of the leftovers filter 29" refers to dimensions corresponding to the diameter of the circular hole, the side length of the mesh, and the like. Strictly speaking, it is above the minimum size B of the foreign matter 49 that may pass through the leftovers filter 29 as shown in FIG. 10 . In addition, the leftovers filter 29 may include two filters of a non-detachable fixed filter 51 fixed to the drain port 28 and a detachable filter 52 detachable for cleaning. As long as it is set according to the size of the side where the gap is small (usually the detachable filter screen 52), there will be no problem during normal work. However, since there is a possibility that the detachable filter screen 52 is installed incorrectly or forgotten to be installed, it is more reliable to set it to a distance far greater than the gap of the fixed filter screen 51 .

In addition, the minimum gap between the valve casing 40 and the valve body 41 is set to be larger than the gap of the leftover filter 29 . The gap between the valve housing 40 and the valve body 41 refers to the linear distance from the outer circumference and end surface of the valve body 41 to the valve housing 40 . In addition, the meaning above the gap of the leftovers filter 29 is the same as above. In this way, since there is a gap between the outlet 39 and the valve body 41 that is larger than the size of the foreign matter 49 that may flow into the water diversion device 37, it is possible to prevent the foreign matter 49 from being stuck in these gaps, causing the valve body 41 to fail to switch. situation occurs.

In addition, if a detection device (not shown) for detecting which washing device 27 is supplied with washing water is used, the spraying time of each washing device 27 can be changed to perform more efficient washing. For example, in order to improve the cleaning ability for relatively difficult rice dishes, it is very effective to set the spraying time from the cleaning device 27a to be longer than that of other devices.

The detection device may include a device for detecting the rotational position of the valve body 41 , a device for detecting the pressure in the cleaning passage 43 or the presence or absence of running water, and many others. Also, there is no need to install upper sensors at four places. As long as a sensor is installed at one place, and combined with information such as operation/stop and rotation speed of the washing pump 26, it can be known from which position the washing water is sprayed.

In addition, when the amount of the object to be cleaned 23 is small, etc., it is not necessary to spray washing water from all the cleaning devices 27, the spraying time of the unnecessary cleaning devices 27 can be set to a very short time of 1 second or less, so that They hardly spray, but only allow the necessary cleaning device 27 to spray. In this way, cleaning can be carried out with higher efficiency in order to shorten the working time. In addition, by making the final spraying during the rinsing process be performed by the cleaning device 27c above the tableware basket 24, the fine water droplets adhering to the object to be cleaned can be reduced as much as possible, and the cleaning performance can be further improved.

In addition, in this embodiment, cleaning devices 27 are provided at four places, and all of them are rotating nozzles that can rotate. However, it is not limited to four locations, and the number of cleaning devices 27 may be set according to the arrangement of dishes in the dish basket 24 . Although the effect can be exhibited as long as there are two or more places, considering the fact that it is very important to improve the cleaning performance to receive jets in two or more directions for all the tableware, it is better to set it at four or more places.

Conversely, when the number of branches is too large, the total amount of water sprayed from one cleaning device 27 will decrease, and the cleaning effect will be poor instead. Therefore, it is best to set it below 10 places, especially below 6 places.

In addition, if the rotating nozzle is used in the cleaning device, the cleaning performance can indeed be improved, but there is also the fact that the occupied space of the cleaning device 27 increases, and the volume of the part for accommodating the object 23 to be cleaned will decrease when the outer casing size of the main body is the same. reduced problem. Therefore, as shown in Figure 11, it is an effective way to solve the above-mentioned problems that the cleaning nozzles arranged on the back side and the top use non-rotating fixed cleaning devices 27c, 27d. Here, the arrangement of the rotating nozzle, the fixed nozzle, etc., and the number of injection ports are not restrictive.

In addition, the cleaning device 27 can also be optimally set according to the shape of the main body 20 of the dishwasher and the arrangement of the dishes, so that the cleaning performance can be further improved. For example, the cleaning device 27 can be arranged at 27a, 27b, 27e, etc. as shown in Figure 12, or as shown in Figure 13, the tableware basket 24 is divided into upper and lower layers, and two baskets are arranged in the middle of the upper and lower baskets 24. Rotate nozzles 27c, 27d, etc.

In addition, although there is only one cleaning device 27 that sprays at a certain moment in the plurality of cleaning devices 27 in the above description, it is also possible to set two or more openings 42 on the valve body 41 so that multiple A cleaning device 27 sprays simultaneously, and it is also possible to switch its position.

In addition, if one of the plurality of outflow ports 39 is connected to a discharge passage for discharging the washing water to the outside of the machine, drainage can be performed without using the drain pump 32 . In this way, there is no need to provide the drain pump 32, which can reduce the cost and make the device miniaturized.

In addition, when the cleaning device 27 is switched sequentially during the cleaning process, the washing water will definitely flow into the above-mentioned outflow port 39, so that as long as the cleaning pump 26 is continuously working, the water will be drained during the cleaning process. Therefore, it is possible to detect which outflow port 39 the washing water is being supplied to, and not to supply the washing water to the outflow port 39 for draining during non-draining time, so as to prevent water from being discharged outside the machine during non-draining time. In addition, by providing an on-off valve on the drain passage, it is possible to reliably prevent washing water from being drained out of the machine.

In addition, the utility model is a utility model related to the switching method of the washing water, and has no information on the shape and size of the main body 20 of the dishwasher, the opening and closing method of the door 21, the arrangement of the objects to be cleaned such as tableware, and the arrangement of each component. Special Requirements/Restrictions. In addition, what is shown in this embodiment is a dishwasher with a drying function, and the same effect can be achieved for a dishwasher without a drying function.

(Example 2)

The structure of the water dividing device 37 in this embodiment is shown in Figure 14 and Figure 15, and is formed by the valve casing 40 and the movable valve body 41 that are provided with the inlet 38 and four outlets 39 as in Embodiment 1. constitute. The valve body 41 is provided with an opening 42 through which washing water passes. However, the drive motor 54 for driving the valve body 41 is omitted. As an alternative component, a set of upper engaging parts 44 that rotate the valve body 41 at a predetermined angle when the valve body 41 rises and a set of upper engaging parts 44 that rotate the valve body 41 when the valve body 41 descends are respectively provided on the valve housing 40 side and the valve body 41 side. A set of lower engaging members 45 at a prescribed angle.

As shown in FIG. 14 , the valve case 40 is approximately cylindrical, and its axial direction is arranged in the vertical direction. The outlet 39 is provided on the upper surface of the valve housing 40 . The valve body 41 is roughly planar, and the surface A opposite to the valve body 41 at the outflow port 39 is also planar.

When the cleaning pump 26 works, the valve body 41 rises upwards along the slope on the upper engaging part 44 with a substantially linear motion with rotation under the action of the water flow (pressure) of the washing water flowing in from the inflow port 38, as shown in Figure 15 As shown in , it is fixed at a predetermined position where the outflow port 39 is opened, and washing water is sprayed from the washing device 27 communicating with the outflow port 39 . The upper engaging part 44 (the detailed structure of the engaging part is not shown in the cross-sectional view, referring to FIG. 18 ) is set such that when viewed from directly below the valve body 41, the valve body 41 provided on the valve body 41 allows washing water to flow. The positional opening 42 and the aforementioned outflow port 39 are aligned with each other as shown in FIG. 16 .

Next, when the cleaning pump 26 is temporarily stopped, the pressure that pushes up the valve body 41 from below no longer works, and the valve body 41 falls under its own weight. However, at this time, the valve body 41 falls while rotating along the inclined surface on the lower engaging member 45, and finally stops at a predetermined position shown in FIG. 17 .

When the cleaning pump 26 works again, the valve body 41 engages with the next inclined surface of the upper engaging part 44, rises while rotating, and communicates with the next outflow port 39, so that the next cleaning device 27 sprays washing water. In this way, by making the cleaning pump 26 work intermittently, the cleaning device 27 spraying the washing water can be switched in the order of 27a, 27b, 27c, 27d, and the same effect as that of the first embodiment can be achieved by the water dividing device 37. Very high cleaning effect.

If the relationship between the circular upper engaging member 44 and the lower engaging member 45 is drawn in a plane, as shown in FIG. Combination of approximately linear motion and rotational motion in the up and down directions, while sequentially changing positions. In addition, in this embodiment, in order to sequentially switch the four outflow ports 39, the stop/restart valve body 41 is rotated 90 degrees after one pass. As shown in FIG. 18, the upper engaging member 44 and the lower engaging member 45 are set so that the valve body rotates about 20 degrees when rising and about 70 degrees when descending.

In addition, the shapes of these engaging members are not limited to spiral and triangular shapes, as long as the predetermined outflow port 39 is aligned with the opening 42 of the valve body 41 when the washer pump 26 is intermittently operated. For example, instead of a triangular claw shape, it is also possible to make a structure in which the guide roller 47 moves in the groove 46 as shown in FIG. 19 . In addition, the position of the engaging member is not limited to the periphery of the valve body 41 .

In this way, the switching of the cleaning device 27 spraying washing water can be realized by the intermittent operation of the cleaning pump 26, and electric drive mechanisms such as 3-way valves and motors can be omitted, thereby reducing costs and making the water dividing device 37 realize miniaturization. In addition, in the case of motor drive, since the rotating shaft needs to be installed through the valve casing 40, a strict sealing device needs to be provided, which complicates the structure. At the same time, when the seal is poor, water may leak to the outside of the product. However, in the composition of the present utility model, there is no working part passing through the valve casing 40, so there is no need to worry about water leakage to the outside.

In addition, when the cleaning pump 26 is in operation, the valve body 41 is pushed toward the outlet 39 side, that is, upward, by the pressure inside the valve housing 40 . In this way, since the close fit between the valve body 41 and the sealing surface of the outlet 39 is enhanced, the leakage of washing water can be reduced to an extremely small degree, so that more washing water can be sprayed out by the cleaning device 27, and further Improve cleaning performance. If the valve body 41 or the outlet 39 can be deformed under the action of water pressure, the above-mentioned sealing performance will be further improved.

In addition, in this embodiment, the upward movement of the valve body 41 is realized by the pressure of the pressurized washing water, and the downward movement is carried out under the self-weight of the valve body 41, and the axial direction of the valve body 41 needs to be set in a substantially vertical direction. up. In this case, the specific gravity of the valve body 41 needs to be more than 1, and the larger the range that the valve body 41 can rise during pressurization, the more reliable the lowering and turning actions can be completed, and the switching performance of the water diversion device 37 will also be improved. higher. Even if the valve body 41 is made of a resin material, the switching operation can be sufficiently performed. However, it is more effective to use a material having a heavy specific gravity such as metal, or to combine a resin material and a metal material. In addition, by using an elastic force applying device composed of a spring or a rubber material that generates thrust on the valve body 41 toward the direction in which the outlet 39 is separated, the valve body 41 can be reliably moved. In such a case, the water diversion device 37 does not necessarily have to be installed in the vertical direction, but can be installed in any direction.

At the upper engaging part 44, the valve body 41 slides while being pressurized, and the water pressure at the lower engaging part 45 does not work. Therefore, by reducing the rotation angle of the upper engaging member 44, the wear of the upper engaging member 44 can be reduced, and the occurrence of poor switching caused by the positional inconsistency between the opening 42 and the outlet 39 can be prevented. Moreover, the time from the start of the cleaning pump 26 to the time when the valve body 41 bears against the outlet 39 can be shortened, the probability of foreign matter 49 being stuck can be reduced, and the cleaning efficiency can be improved.

Conversely, although not shown in the figure, when the cleaning pump 26 stops, the rotation angle when the valve body 41 completes the rotation movement is set to be smaller than the rotation angle when the valve body 41 completes the rotation movement when the cleaning pump 26 works. , the rotation angle of the valve body 41 will become smaller when the cleaning pump 26 stops, the moving time of the valve body 41 will also be shortened, the stop time of the cleaning pump 26 can also be shortened, the working time of the cleaning pump 26 can be extended, and the cleaning efficiency can be improved .

In addition, by disposing the upper engaging part 44 and the lower engaging part 45, the rotation angle when the cleaning pump 26 stops when the valve body 41 completes the rotation action is the same as the rotation angle when the valve body 41 completes the rotation action when the cleaning pump 26 is working. When it is roughly the same, the degree of inclination of the engaging parts that determines the rotation angles when ascending and descending is as shown in FIG. 20 . In this way, reliable operation without malfunction is achieved in both directions.

In addition, as shown in FIGS. 14 to 17 , the upper engaging member 44 and the lower engaging member 45 may be provided on the back side of the outlet 39 (opening 42 ). When rotating, the speed of the inner side is slower than that of the outer circumference of the valve body 41, the moving distance is also small, the angle of the slope of the engaging part is also steeper, and the rotation of the valve body 41 is also more stable. At the same time, the abrasion of the upper meshing member 44 and the lower meshing member 45 can also be reduced, and the possibility of switching failure can be reduced.

Also, on the side of the upper engaging member 44 , the valve body 41 moves substantially linearly until the valve body 41 comes into contact with the outlet port 39 when the washer pump 26 operates. That is, a substantially linear movement is made upward by the protrusion F of the upper engaging member 44 as shown in FIG. 18 . Therefore, the valve body 41 that moves under the action of the pressurized washing water rises without rotating and abuts against the outflow port 39. There is almost no wear on the surface, so that the change of the diameter during use with the use time can be reduced, and the switching performance and component strength will not deteriorate from the initial state due to wear. In this way, there is no need to use wear-resistant materials, and it is sufficient to use ordinary resin molded parts such as PP and POM.

In addition, if both or any one of the contacting parts of the valve body 41 and the outlet port 39 is formed of elastic materials such as rubber or elastic plastic, the adhesion between the valve body 41 and the outlet port 39 will be dramatically improved. However, when the valve body 41 and the outlet port 39 need to slide, it cannot be used due to the high frictional resistance. If the valve body 41 is used in a structure in which the valve body 41 moves substantially linearly until it comes into contact with the outlet port 39, the wear of the elastic material body is reduced, and a better effect can be produced.

In addition, using a detection device (not shown) that detects which washing device 27 is being supplied with wash water, the spraying time of each washing device 27 can be changed, so that more efficient washing can be performed. For example, if one wants to increase the cleaning power for difficult-to-clean objects such as rice bowls, it is very effective to set the spray time of the cleaning device 27a to be longer than that of other cleaning devices.

The detection device may be in various forms such as a device that detects the rotational position of the valve body 41, a device that detects the pressure in the cleaning passage 43, the presence or absence of running water, and the like. In addition, there is no need to use sensors at four places. Even if only one sensor is installed, it is possible to know which position is being sprayed from by combining information such as operation/stop and rotational speed of the washer pump 26 .

In addition, when the amount of the object to be cleaned 23 is small and there is no need to spray washing water from all the cleaning devices 27, the spraying time of the unnecessary cleaning devices 27 can be set to an extremely short time of about 1 second or less, so that Spraying is hardly performed, but only the necessary cleaning device 27 is sprayed. In this way, cleaning can be performed with higher efficiency and the operating time can be shortened.

In addition, by arranging the final spraying of the rinsing stage to be performed by the cleaning device 27c located above the tableware basket 24, the fine water droplets adhering to the cleaning objects can be reduced as much as possible, and the cleaning performance can be further improved.

In addition, the surface A provided with the outlet 39 and opposite to the valve body 41 has a certain inclination relative to the substantially linear motion direction (ie, the up-down direction) of the valve body 41 . As shown in FIG. 15 , the opposing surface between the outflow port 39 and the valve body 41 is horizontal, which is equivalent to an inclination of 90 degrees from the linear motion direction of the valve body 41 . In this way, since the valve body 41 moves linearly during switching, it has the effect of increasing the distance between the outlet 39 and the opposite surface A of the valve body 41 . Even if foreign objects 49 such as leftovers and toothpicks are mixed with the washing water and circulated together, and the foreign objects 49 are stuck in the gap between the valve housing 40 and the valve body 41, when the cleaning pump 26 stops and the valve body 41 leaves, the foreign objects 49 can also be removed from the gap. Lose. In this way, the water diversion device 37 can be prevented from being stuck by the foreign matter 49, and the same function and effect as that of the first embodiment can be achieved, so that the valve body 41 can be switched reliably.

In addition, when the kind of cleaning pump 26 shown in FIG. 21 starts to work, when there is a foreign object 49 stuck between the valve housing 40 and the valve body 41, all cleaning devices 27 will be supplied with washing water, but the washing water The supply may not be sufficient. Once the cleaning pump 26 stops, the distance between the outlet 39 and the valve body 41 will be widened, and the foreign matter 49 can be removed, and the next time the cleaning pump 26 works, it can be switched smoothly, so that the cleaning objects can be cleaned with high efficiency. 23 Clean up.

In addition, even if the foreign matter 49 does not fall off when the washing pump 26 is stopped, the foreign matter 49 will be rushed to the side of the outlet 39 under the action of the water flow when the washing pump 26 starts to work, and will not continue to be stuck in the gap. In addition, if the cleaning pump 26 is stopped/restarted once and the foreign matter 49 is not removed, the foreign matter 49 can be removed by repeating the stop/restart process several times. In addition, if the shape of the valve body 41 is such that the upper surface has some inclinations, the foreign matter 49 will be removed more easily.

In addition, as shown in FIG. 16 , the minimum gap J between the valve housing 40 and the valve body 41 is set to be larger than the gap of the leftovers strainer 29 . The gap between the valve housing 40 and the valve body 41 is the linear distance from the outer edge or end surface of the valve body 41 to the valve housing 40 . In this way, since there is a gap between the outlet 39 and the valve body 41 that is larger than the size of the foreign matter 49 that may flow into the water diversion device 37, it can prevent the foreign matter 49 from being stuck in the gap, causing the valve body 41 to fail. A switching situation occurs.

In addition, although the upper valve body 41 is in a planar shape, this is not a restrictive requirement. Even if it is made into a conical or spherical shape, it only needs to be able to withstand the outlet 39 under the action of water pressure.

In addition, as shown in FIG. 15 , each outflow port 39 is provided in a tubular shape protruding into the valve housing 40 . In this way, the contact area between the outflow port 39 and the valve body 41 is only the end area of the four pipes, which is much smaller than when there is no protrusion, and foreign objects 49 are not easily stuck between the outflow port 39 and the valve body 41. Thereby reducing the number of poor switching. However, such a structure is not limiting, as long as the shape of the outlet 39 and the valve body 41 is appropriate, the same effect can be achieved even if it does not protrude.

In addition, in the above embodiment, the cleaning pump 26 is constantly repeating the process of working and stopping, but when the cleaning pump 26 uses an inverter motor to change the output of the pump, the output strength of the pump can also be used. To switch the valve body 41. If the output at the time of "weakness" is set to be equal to or less than the output at which the valve body 41 can be separated from the outlet 39, switching can be completed, and the number of operations and stops of the pump can be reduced. In this way, the life of the motor can be extended, and the noise reduction can also be realized during operation.

In addition, shown in FIG. 15 is a structure in which the shaft 60 provided on the valve housing 40 is inserted into the hole 61 provided on the valve body 41 . The shaft 60 and the hole 61 are very close or in contact with each other, limiting the up and down linear motion and rotational motion of the valve body 41 . For example, if the outer diameter of the valve body 41 is 100 mm, and the diameter of the shaft portion 61 is 5 mm, the relative area (circumference length) is only very small compared with the case where the relative movement is performed on the outer peripheral portion of the valve body 41. About 1/20 of that, the probability of getting stuck in a foreign object is also much smaller. In addition, even if a foreign object is caught in the gap, the force (torque) required to rotate against the resistance of the foreign object is also only about 1/20, and there is no need for a special driving device to rely on the change of the water flow in the valve housing 40. The valve body 41 can be moved, and the force required for the rotation of the valve body 41 is also reduced, and the possibility of foreign objects blocking the valve body 41 so that it cannot rotate almost does not exist. In this way, it is possible to prevent foreign matter from causing the phenomenon that the water separating device 37 cannot be switched and the entire cleaning tank 22 cannot be cleaned, thereby improving the cleaning device with high reliability.

As shown in Figure 14, the center line K of the inflow port 38 for the washing water to flow into the valve housing 40 will deviate from the outer circumference side by a distance M compared with the rotation center L of the valve body 41, and there will be in the valve housing 40. A vortex rotating inside the valve casing 40 is generated, and foreign substances having a specific gravity larger than water, which account for most of the foreign substances, are pushed toward the vicinity of the circumference of the valve casing 40 by the centrifugal force of the vortex. In this way, the foreign matter tends to stay away from the shaft 60 and the hole 61 near the center of the valve housing 40 , and the probability of foreign matter getting caught between the shaft 60 and the hole 61 can be further reduced.

The upward movement of the valve body 41 is due to the pressure of the washing water. Since the inside of the valve housing 40 is usually pressurized to about 20-40kPa, the pressure acting on the valve body 41 is generally between 20-100N, although the size of the valve body 41 varies, even if some foreign matter is stuck, It is also possible to move the valve body 41 . However, when the valve body 41 descends, only the dead weight of the valve body 41 works, and its driving force is relatively small.

Therefore, as shown in FIG. 22, by providing an elastic force applying device 62 that separates the valve body 41 from the outlet 39, and pressing the valve body 41 with a coil spring, the valve body can be moved even when a foreign object is caught. 41 moves to improve switching reliability. In addition, in addition to the coil spring shown in FIG. 22 , springs of other forms such as leaf springs, elastic bodies such as rubber, or metal accessories can be fixed on the valve body 41 or inserted into it to increase the valve body. The weight of 41 can also achieve the same effect. In addition, a structure in which a magnet or a magnetic body is provided on the valve body 41 and the valve body 41 is pushed downward by magnetic force is also applicable.

In addition, the shape of the shaft 60 and the hole 61 can not be limited to the shape shown in FIG. The shape of the hole, and various schemes such as setting the hole 61 on the valve casing 40 shown in FIG. 25 and setting the shaft 60 on the valve body 41 can all be adopted, and they can reliably prevent foreign matter from being stuck.

(Example 3)

FIGS. 26 to 28 show the case where the opposing surface of the outlet port 39 and the valve body 41 is not a planar shape.

FIG. 26 shows the case where the opposing surfaces of the outflow port 39 and the valve body 41 are conical. As shown in the figure, the opposite surfaces are somewhat inclined from the horizontal, so that when the valve body 41 is separated from the outlet 39, the possibility of stuck foreign matter 49 remaining on the valve body 41 can be reduced, thereby providing a method for removing foreign matter 49. The higher water dividing device 37 of function. In addition, the direction of the rotation axis is inclined from the horizontal direction regardless of the direction in which it is set, which can produce a good effect.

In addition, even in the state where the outlet 39 is in contact with the valve body 41, the valve body 41 can also rotate, and the channel switching of the washing water is independent of the linear movement distance of the valve body 41, which can improve the degree of freedom in design. In addition, in the case where the washing water flowing out of the outlet 39 as shown in the figure contains a structure bent in the horizontal direction, the conical outlet 39 contains components in the normal (horizontal) direction, and the pressure of the water diversion part Losses can also be reduced. In addition, the distance between the valve bodies 41 is the distance between surfaces, and the dimension C in the figure is the distance.

In addition, the taper angle D of the conical portion is not particularly limited. However, when it is close to 0 degrees, the movement of the valve body 41 becomes impossible due to the wedge effect. In order to ensure the necessary clearance, the distance of linear motion will become longer, and the valve case 40 also has the problem of becoming larger. Therefore, the taper angle D of the conical part should be above 30 degrees, preferably above 90 degrees.

In addition, FIG. 27 shows the case where the opposing surface of the outflow port 39 and the valve body 41 is a pyramid shape. Since the opposite surface is also inclined from the horizontal, it can play the same role as a cone, and the opposite surface between the outflow port 39 and the valve body 41 is approximately flat, and the shape of the parts can be managed by the flatness and angle of the opposite surface. , even under the occasion of mass production, the water distribution device 37 with less water leakage and stable performance can be produced by using parts with specified dimensions.

In addition, FIG. 28 shows the case where the opposing surface between the outflow port 39 and the valve body 41 is a spherical surface. In the case where the valve body 41 faces the outflow port 39 with a slight inclination, although the positions of the opening 42 and the outflow port 39 are somewhat misaligned, since the outflow port 39 and the valve body 41 as opposing surfaces are both spherical surfaces, the The gap between the outflow port 39 and the valve body 41 does not widen, the leakage of washing water does not expand, and switching performance can be maintained.

(Example 4)

The shape of the outflow port 39 shown in FIG. 29 is fan-shaped, and the opening 42 of the valve body 41 shown in FIG. 30 is a notch shape connected with the outer shape of the valve body 41. The basic structure, function and effect are the same as those in Embodiment 2. same.

The shape of the outflow port 39 is fan-shaped, and if a plurality of outflow ports 39 are arranged around the shaft, the shape E formed by these outflow ports 39 is substantially circular. Under the condition of ensuring the same area of the outlet 39, such a shape can make the outer shape of the valve body 41 the smallest, and a sufficient gap can be guaranteed between the valve body 41 and the valve housing 40, which can prevent the foreign matter 49 from being stuck, and realize Miniaturization of the water dividing device 37.

In addition, if the outer shape of the valve body 41 is substantially circular, foreign matter 49 is less likely to be caught between the valve body 41 and the valve casing 40, and the probability of poor switching can also be reduced. And, because the resistance when the valve body 41 moves can be reduced, the movement of the valve body 41 can be smoother and the time is shorter, and the time for the cleaning pump 26 to stop working can be shortened, so that efficient cleaning can be performed in a shorter time. cleaning.

By making the opening 42 a notch shape connected to the outer shape of the valve body 41 as shown in FIG. , The foreign matter 49 also has places that can be avoided, so that the probability of being stuck can be reduced.

In addition, the upper engaging member 44 on the side of the valve casing 40 and the partition wall portion of the outflow port 38 are mutually used, and are provided between adjacent outflow ports 38 . In this way, there are no engaging parts inside and outside the outflow port, and the size (outer diameter) of the valve body can be minimized while ensuring the same outflow area, so that the water diversion device 37 can be miniaturized.

(Example 5)

Shown in Fig. 31 is the structure that the water dividing device 37 can be disassembled. This figure is a perspective view of the bottom of the cleaning tank 22. By turning and removing the cover 53, the water separating device 37 can be disassembled. In this way, the inside of the water diversion device 37 can be cleaned and the like, and in the unlikely event that switching occurs, maintenance operations such as removing foreign matter 49 can also be performed, so that it can be used in a state where the switching can be reliably performed. .

In particular, if the structure that can be disassembled from the inside of the washing tank 22 is adopted, the maintenance work can be performed without disassembling the main body 20 of the dishwasher, and the maintenance work can be performed by the user himself, making the maintenance work very easy.

In addition, besides the above-mentioned structure in which the cover 53 and the screw are integrated, a structure in which the screw is unscrewed and then removed, or a structure in which the cover 53 is inserted and grasped by claws and then pushed down can be removed. Moreover, if it can be easily disassembled not from the inside of the cleaning tank 22 but from the bottom surface, maintenance work can also be easily performed.

In addition, if the opening position of the valve case 40 is provided in the cleaning tank 22 as in the present embodiment, the cleaning tank 22 and the valve case 40 can be constituted by a single part. In this case, the danger of water-distributing device 37 leaking just does not exist.

(Example 6)

FIG. 32 is a top view of the valve body 41. On the shaft 60 protruding from the lower side of the valve housing 40, there is provided a rib-shaped protrusion 63 extending in the axial direction on the periphery, constituting an access member. Other basic constitutions are the same as in Embodiment 2.

Same as in Embodiment 2, when the cleaning pump 26 continuously repeats the process of working/stopping, the valve body 41 moves up and down, rotates 90 degrees each time, and switches the cleaning device 27 for spraying washing water in sequence. The four protruding parts 63 arranged on the shaft 60 play the role of approaching parts. When the shaft 60 touches or approaches the hole 61, the valve body 41 moves linearly while rotating. Since there will be a larger space 63a between the approaching part (protrusion) 63 and the approaching part (protrusion) 63, there is a possibility of foreign matter getting caught only at the four points of the approaching part, so that the foreign matter will Easier to get stuck in.

As shown in FIG. 33 , once a foreign object 49 is caught, the valve body 41 can be easily removed by rotating the valve body 41 a little, so that the foreign object can be avoided from blocking the valve body 41 so that it cannot be switched. If the upper engaging part 44 is set as shown in Figure 34, when the water flow of the washing water stops or decreases, the valve body 41 starts to move and rotate (moving obliquely downward as shown by the arrow), then the foreign matter 49 will appear as As shown in FIG. 35 , it can be reliably removed by moving to the approach portion (protrusion portion) 63 and the wide space portion 63 a between the approach portion (protrusion portion) 63 .

If the gap between adjacent adjacent parts 63 is set to be larger than the mesh size of the leftovers filter 29, clogging by foreign matter can be more reliably avoided. Usually, the leftovers filter 29 is formed of a metal sheet with a large number of small holes, and it only needs to be set larger than the hole diameter (about 1 mm to 2 mm). However, in the case of a detachable filter and a fixed filter, it is preferable to set a gap larger than the size of the fixed filter.

In addition, lower engaging members 45 may also be provided on the outer circumferential sides of the shaft 60 and the hole 61, respectively. As shown in FIG. 36 , at the position of the valve body 41 when the cleaning pump 26 is in operation and washing water passes through, the raised portion 63 is arranged to be aligned with the adjacent portion of the lower engagement member 45 provided on one side of the valve body 41 . among the top 64 of the . Since the engaging part 45 is a triangle as shown in the figure, and the engaging part 45 and the space exist alternately, foreign matters are highly likely to be stuck between the engaging part 45 and the shaft 60 from the space part along with the water flow in the valve housing 40 . If the top 64 and the convex portion 63 are consistent, although the possibility of foreign matter getting caught in the gap is increased, by making the convex portion 63 face the middle of the adjacent top 64, the relative area is reduced, which reduces the Possibility of a foreign object becoming lodged in the gap.

And, as shown in FIG. 37 , by providing a concave portion 65 without inclination between the adjacent top portion 64 and the top portion 64 so that the concave portion 65 is opposed to the convex portion 63, the shaft 60 and the lower engaging member 45 are engaged. Ingress of foreign matter can be completely avoided. In addition, in this case, if the number of protrusions 63 is equal to the number of tops 64 of the engaging member 45, the relationship between all protrusions 63 has the same conditions, and the stability against foreign matter can be further improved. .

(Example 7)

FIG. 38 is a plan view of the valve body 41. The valve case 40 and the valve body 41 are approximately circular, and a plurality of protrusions (approaching members) 63 are provided on the outer periphery of the valve body 41.

Under the action of the protruding portion (proximity part) 63 arranged on the outer circumference of the valve body 41, the valve body 41 and the valve casing 40 contact or approach each other, forming a structure that restricts the movement of the valve body 41. Between 63 and the approach member 63, a space portion 63a larger than that is provided. In the valve body 41, only the part close to the part 63 is close to the valve housing 40, the area where the foreign matter may be stuck will be reduced, and the reliability against foreign matter can be improved.

In addition, as in Embodiment 6, even if there is a foreign matter caught in the access member 63, it can be easily removed as long as the valve body 41 rotates slightly, so that the occurrence of foreign matter stuck in the valve body 41 and making it impossible to switch can be avoided. . And, when the water flow of washing water stops or decreases, if the valve body 41 is made to rotate when it starts to move, even if there is a foreign matter stuck in the approaching member 63, the foreign matter will inevitably move between the approaching member 63 and the approaching member 63. The wide space between them can be moved, so that it can be cleared, and in most cases, it can avoid the situation that the switch cannot be caused by foreign objects.

If the gap between the adjacent approaching members 63 is set larger than the size of the leftovers filter 29, foreign matter can be reliably prevented from being caught. Generally, the leftovers filter 29 is made of a perforated metal sheet or the like, and it only needs to be set larger than the hole diameter (about 1mm and 2mm). When a detachable filter and a fixed filter are provided, it is preferable to set a gap larger than that of the fixed filter.

In addition, the same effect can be obtained even if the protrusion 63 is provided not on the valve body 41 side but on the valve housing 40 side. In addition, the proximate member is not limited to the shape of the protruding portion 63, and the valve body 41 can be made into a perfect circle as shown in FIG. .

According to the present invention as described above, even if a foreign matter gets stuck in the gap between the valve body and the valve body, the foreign matter can be easily removed, and the cleaning device with washing water supply can be switched reliably.

In addition, it is also possible to provide a water diversion device capable of preventing foreign objects from getting caught, with less water leakage and high branching efficiency.

Claims (36)

1. A dishwashing machine, characterized in that it comprises: a cleaning tank for accommodating objects to be cleaned; a cleaning pump for pressurizing the washing water; a plurality of cleaning devices provided with injection ports for spraying washing water into the cleaning tank; and a water dividing device for switching the washing device supplied with the washing water from the washing pump, The water diversion device includes a valve housing having an inflow port for the washing water pressurized by the washing pump to flow in and a plurality of outlet ports respectively communicating with a plurality of the washing devices, and is arranged to be able to be placed in the valve body. A moving valve body, the rotation of the valve body switches the outlet for washing water supply, and the valve body can move away from the plane where the outlet is provided. 2. The dishwasher according to claim 1, wherein the valve body can move away from the plane where the outlet is provided during the operation of the washing pump. 3. The dishwasher according to claim 1, wherein the valve body can be tilted from the direction of the rotation axis of the valve body. 4. The dishwasher according to claim 1, wherein the valve body leaves the outlet when the washer pump is stopped. 5. The dishwasher according to claim 4, further comprising an elastic force applying device for applying elastic force to the valve body in a direction away from the outlet. 6. The dishwasher according to claim 1, wherein the washing pump is temporarily stopped in the middle of the washing and rinsing process. 7. The dishwashing machine according to claim 1, characterized in that it is also provided with a leftovers filter that traps leftovers when washing water passes through, and the distance between the valve body and the outlet is greater than that of the leftovers filter. gap. 8. The dishwasher according to claim 1, wherein the outlet for supplying washing water is switched by rotating the valve body, and at the same time, the opposing surfaces of the outlet and the valve body are opposite to the valve body. The direction of the axis of rotation of the valve body is inclined. 9. The dish washer according to claim 8, characterized in that it is also provided with a leftovers filter which traps leftovers when washing water passes through, and the minimum gap between the valve housing and the valve body is within the width of the leftovers filter. above the gap. 10. The dishwasher according to claim 8, characterized in that: the outlet is set to protrude into the valve body. 11. The dishwasher according to claim 8, characterized in that: the shape of the outlet is generally fan-shaped. 12. The dishwasher according to claim 8, characterized in that: the valve body is provided with an opening for washing water to pass through the valve body, and the opening is connected to the outer shape of the valve body Cutout shape. 13. The dishwasher according to claim 1, characterized in that: the outlet for supplying washing water is switched with the rotation of the valve body, and at the same time, the pressure of the washing water after the washing pump is pressurized by the valve body Under the action, it is compressed on the outlet. 14. The dishwasher according to claim 13, wherein the valve body is separated from the outflow port when the washing pump is stopped, and is in contact with the outflow port when the washing pump is in operation, thereby supplying washing water to a predetermined flow port. exit. 15. The dishwasher according to claim 13, characterized in that: the valve body is set to move forward and backward freely relative to the outlet, and moves approximately in a straight line just before it comes into contact with the outlet. 16. The dishwashing machine according to claim 13, characterized in that: when the cleaning pump is stopped, the rotation angle of the valve body at stop is larger than the rotation angle of the valve body at work when the cleaning pump is working. 17. The dishwasher according to claim 13, characterized in that: when the cleaning pump is stopped, the rotation angle of the valve body at stop is smaller than the rotation angle of the valve body at work when the cleaning pump is working. 18. The dishwashing machine according to claim 13, characterized in that: when the cleaning pump is stopped, the rotation angle of the valve body at stop is substantially the same as the rotation angle of the valve body at work when the cleaning pump is working. 19. The dish washer according to claim 13, characterized in that it is also provided with an engaging part that makes the valve body perform a roughly linear motion and a rotating action when the cleaning pump is intermittently working, and the engaging part is arranged closer to the outlet than the outlet. One side of the rotation center of the valve body. 20. The dish washing machine according to claim 13, characterized in that it is also provided with an engaging part that makes the valve body perform approximately linear motion and rotational movement when the cleaning pump is intermittently working, and the engaging part is arranged on the adjacent flow channel. between exits. 21. The dishwasher according to claim 13, wherein either or both of the portions where the valve body and the spout are in contact with each other are made of elastic body. 22. The dishwasher according to claim 1, characterized in that: the valve body or the shaft provided on either one of the valve body and the hole provided on the other side cooperate in a freely rotatable manner. 23. The dishwasher according to claim 22, wherein a plurality of approaching parts are provided on the cooperating shaft and the hole, and a space larger than the approaching parts is provided between adjacent approaching parts. 24. The dishwashing machine according to claim 22, characterized in that: the outer circumference of the shaft is provided with rib-shaped protrusions extending along the axial direction to form the approaching part, and at the same time, the outer sides of the shaft and the hole are respectively provided with The engaging part rotated by the valve body, when the washing water flows in the valve body during the operation of the cleaning pump, the raised part is aligned between the adjacent tops of the engaging part on one side of the hole. 25. The dishwasher according to claim 24, wherein a recess is provided between adjacent tops of the engaging parts on one side of the hole, and the raised portion is aligned with the recess. 26. The dishwasher according to claim 22, wherein the valve body starts to move and rotate when the flow of washing water stops or decreases. 27. The dishwasher according to claim 22, wherein the center of the inflow port where the washing water flows into the valve casing is offset from the rotation center of the valve body to the outer peripheral side. 28. The dishwashing machine according to claim 1, characterized in that: the valve body is arranged to be rotatable freely along the inner surface of the valve housing, and the inner surface of the valve housing and the outer surface of the valve body facing each other A plurality of approaching portions are provided on the surface, and a space larger than the volume of the approaching portions is formed between adjacent approaching portions. 29. The dishwasher according to claim 28, characterized in that: the inner surface of the valve casing and the outer surface of the valve are roughly circular, and there are a plurality of The raised portion constitutes the access portion. 30. The dishwashing machine according to claim 1, wherein the valve body is rotated by intermittent operation of the cleaning pump. 31. The dishwasher according to claim 1, characterized in that: the valve body is driven by an electric drive source to realize the rotation action. 32. The dishwasher according to claim 31, wherein the operation of the electric drive source is performed while the washer pump is stopped. 33. A dish washer, characterized by comprising: a washing tank for accommodating objects to be washed; a washing pump for pressurizing washing water; a plurality of washing devices having injection ports for spraying washing water into the washing tank; and a water dividing device for switching the washing device from the washing water supply of the washing pump, The water dividing device is provided with an inflow port for the washing water pressurized by the cleaning pump to flow in, and a valve housing with a plurality of outlets respectively communicating with a plurality of the cleaning devices, and the The valve body that moves inside the body switches the outlet for washing water supply with the rotation of the valve body, and at the same time, the valve body can move from the surface where the outlet is provided Leave. 34. A dish washer, characterized by comprising: a washing tank for accommodating objects to be washed; a washing pump for pressurizing washing water; a plurality of washing devices having injection ports for spraying washing water into the washing tank; and a water dividing device for switching the washing device from the washing water supply of the washing pump, The water dividing device is provided with an inflow port for the washing water pressurized by the cleaning pump to flow in, and a valve housing with a plurality of outlets respectively communicating with a plurality of the cleaning devices, and the The valve body that moves inside the body switches the outlet for washing water supply with the rotation of the valve body, and at the same time the valve body can be removed from the surface where the outlet is provided, and the valve body can be The tilt occurs from the direction of the rotation axis of the valve body. 35. A dish washer, characterized by comprising: a washing tank for accommodating objects to be washed; a washing pump for pressurizing washing water; a plurality of washing devices having injection ports for spraying washing water into the washing tank; and a water dividing device for switching the washing device from the washing water supply of the washing pump, The water dividing device is provided with an inflow port for the washing water pressurized by the cleaning pump to flow in, and a valve housing with a plurality of outlets respectively communicating with a plurality of the cleaning devices, and the The valve body that moves in the body switches the outlet for washing water supply with the rotation of the valve body, and at the same time the valve body can be removed from the surface on which the outlet is provided, and the valve body is in the The cleaning pump can be removed from the outlet when it is stopped. 36. A dish washer, characterized by comprising: a washing tank for accommodating objects to be washed; a washing pump for pressurizing washing water; a plurality of washing devices having injection ports for spraying washing water into the washing tank; and a water dividing device for switching the washing device from the washing water supply of the washing pump, The water dividing device is provided with an inflow port for the washing water pressurized by the cleaning pump to flow in, and a valve housing with a plurality of outlets respectively communicating with a plurality of the cleaning devices, and the The valve body that moves inside the body switches the outlet for washing water supply with the rotation of the valve body, and at the same time, the valve body can be removed from the surface on which the outlet is provided, and the valve body The valve body can be tilted from the direction of the rotation axis, and the valve body moves away from the outflow port when the washer pump is stopped.

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