CN104975458B - A kind of reciprocating washing machine - Google Patents

Abstract

The present invention provides a kind of reciprocating washing machines, including cylindric washer, upper cover, transmission mechanism, piston and driving device, the upper cover is movably coupled in the opening of cylindric washer, the cylindric washer includes upper and lower two parts, the top of cylindric washer is used as washing cavities, hold/wash clothing, inside is equipped with piston, the lower part of cylindric washer is used as control chamber, interior setting transmission mechanism, the input terminal of transmission mechanism connects driving device, is worm drive between transmission mechanism and piston, and driving device is pumped in cylindric washer by transmission mechanism band piston.The washing machine that clothing is washed is squeezed by piston reciprocating the present invention provides a kind of, existing pulsator washing machine is overcome and tumbling-box washing machine is larger to wear of clothes, and the big disadvantage of water consumption has better washing effect.

Description

A reciprocating washing machine

technical field

The present invention relates to the field of washing machines, in particular to a reciprocating washing machine.

Background technique

Existing washing machines are mainly divided into pulsator type and drum type. The pulsator washing machine mainly relies on the rotation of the pulsator to agitate the water flow and the clothes to achieve the purpose of washing. The disadvantage of this method is that the clothes are constantly rubbed against the pulsator and the barrel wall, resulting in greater wear and tear of the clothes; The phenomenon of intertwining and pulling by the strong water flow will cause the clothes to be deformed; the water consumption is more and the washing effect is not good. The drum washing machine mainly uses the lifting ribs arranged on the drum wall to lift the clothes and then wash the clothes by falling, beating and rubbing, and there is also the problem of constant friction between the drum wall and the clothes.

The existing Chinese patent application number is 201110048322.X, the invention relates to the field of daily life, more specifically, to a washing machine, including a washing tub, a tub cover, a washing board and a driving device; the washing board is installed The washing tub is divided into an upper cavity and a lower cavity that communicate with each other; the tub cover is matched with the upper port of the washing tub; the driving device drives the washing plate to extend along the washing tub Direction reciprocating movement. Since the washing machine provided by the present invention cleans the clothes by pressing the washing board and the bucket cover, the washing board not only cleans the clothes, but also dehydrates the clothes to a certain extent during the upward movement of the washing board. The washing machine can dehydrate the clothes on the basis of the original structure, so that the washing machine does not need to add parts when the dehydration function is ensured, and the structure of the washing machine is simple.

The above-mentioned patent provides a washing machine which is different from the washing method of the existing washing machine, and the clothes are washed clean by pressing the washing plate and the bucket cover. However, the power transmission of this patent is connected to the motor through the piston rod, or the piston rod is connected to the motor through the connecting rod. In this case, the rotation of the motor drives the piston rod to move up and down, but the rotation of the motor will also drive the piston to rotate, which is easy to cause clothes. intertwined with each other, which is not conducive to the washing of clothes. Moreover, the patent does not have a water circulation system, which is not conducive to the tumbling of the clothes, and the washing effect of the clothes is not ideal.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a reciprocating washing machine, which adopts a new way of washing clothes and has good washing effect.

In order to achieve the above object, the present invention adopts the following technical solutions:

A reciprocating washing machine includes a washing tub, a transmission mechanism, a piston and a driving device. The washing tub includes an upper washing chamber and a lower control chamber. A piston is arranged in the washing chamber, and a transmission mechanism is arranged in the control chamber. The diameters of the cavity and the control cavity are different; the input end of the transmission mechanism is connected to the driving device, and the transmission mechanism and the piston are screwed, and the driving device drives the piston to reciprocate up and down in the washing chamber through the transmission mechanism.

Further, the piston includes a pressure plate and a piston rod connected to the lower part of the pressure plate, and the piston rod is threadedly connected with the transmission mechanism.

Further, the piston rod is a cylindrical structure with internal threads; the transmission mechanism is a hollow screw rod with external threads; the hollow screw rod and the piston rod are threadedly connected.

Further, the pressing plate is arranged in the washing cavity of the washing tub, the pressing plate is closely matched with the washing tub, and the water permeable hole is arranged on the pressing plate.

Further, the diameter of the control cavity of the washing tub is smaller than the diameter of the washing cavity; at least two guide grooves are arranged in the control cavity, and limit blocks corresponding to the guide grooves are arranged outside the piston rod of the piston (400).

Further, two guide grooves are symmetrically arranged in the control cavity; the limiting block is arranged on the outer wall of the piston rod.

Further, an upper cover is movably connected to the opening of the washing cavity of the washing tub, and a squeezing cavity for squeezing the clothes can be formed between the upper cover and the piston.

Further, the upper cover includes an upper cover plate and a lower baffle that are connected to each other, and the cover plate and the baffle are hollow; the baffle is provided with baffle permeable holes and protrusions on one side of the baffle relative to the inside of the washing tub. structure.

Further, a circulating water pipe is connected to the upper cover, and a circulating water pump is arranged at the bottom of the washing tub; the other end of the circulating water pipe is connected to a circulating water pump.

Further, the washing machine further includes a base, the washing tub is fixedly installed on the base, the driving device is arranged in the base, and the driving device and the washing tub are sealedly connected.

The invention provides a washing machine that washes clothes by reciprocatingly squeezing the piston. First, it overcomes the shortcomings of the existing pulsator and drum washing machines that wear clothes and consumes a lot of water, and has better washing effect. Secondly, the structure of the piston transmission mechanism of the present invention is simpler and has better transmission effect. Finally, the washing machine of the present invention is provided with a circulating water pipe, so that the washing water circulates, realizes the three-dimensional circulation of the water flow, and has a better washing effect on the clothes.

Owing to adopting the above-mentioned technical scheme, the present invention has the following beneficial effects:

1. The present invention provides a washing machine that uses the method of piston reciprocating extrusion for laundry, which has less wear on clothes, less water consumption and better washing effect.

2. The transmission mechanism of the present invention is threadedly connected to the piston, the input end of the transmission mechanism is connected to the driving device, and the transmission mechanism is driven by the driving device, thereby driving the piston that is threadedly connected with the driving transmission mechanism to reciprocate, the transmission structure is simple to connect, and the transmission effect is good, Ensure the effective output of power.

3. At least two guide grooves are arranged at the lower part of the washing tub of the present invention, and a limit block corresponding to the guide groove is arranged on the outer side of the piston rod. Driven by the transmission mechanism, it moves up and down, which prevents the clothes in the washing tub from being entangled with each other due to the rotation of the piston, which affects the washing effect.

4. The upper cover of the present invention includes an upper cover plate and a lower baffle that are connected to each other. The baffle is provided with a baffle permeable hole and a raised structure, so that it is convenient to inject water into the washing machine through the upper cover. In addition, the baffle is provided with The raised structure can increase the pressing and friction on the clothes, and has a better washing effect.

5. The upper cover of the present invention is connected to a circulating water pipe, and the other end of the circulating water pipe is connected to a circulating water pump arranged at the bottom of the washing tub. Flush into the washing tub. Under the impact of the circulating water flow, the laundry in the washing tub can be turned over to a certain extent. In this way, when the piston rises again, the clothes can be squeezed in different directions, so as to avoid squeezing the clothes into a solid piece and affecting the washing effect.

6. The circulating water pump of the present invention can run all the time or at intervals. In this way, the clothes can be turned over, and the washing water in the tub can be circulated up and down, so that the detergent can be evenly distributed in the washing water.

7. Under the action of the reciprocating piston and the circulating water pump, the clothes are continuously squeezed in all directions to achieve the purpose of washing. Therefore, the invention has better washing effect and more water saving.

8. The washing machine of the present invention has a simple structure, is suitable for miniaturization, and can be used in various occasions.

Description of drawings

Fig. 1 is the structural representation when the upper cover of the present invention is closed;

2 is a schematic structural diagram of the present invention when the upper cover is opened;

Figure 3 is a front view of the present invention;

Figure 4 is a cross-sectional view of the present invention along the A-A plane in Figure 3;

Figure 5 is a right side view of the present invention;

Figure 6 is a cross-sectional view of the present invention along the B-B plane in Figure 5;

Fig. 7 is the structural representation of the washing tub of the present invention;

Figure 8 is a top view of the washing tub of the present invention;

Fig. 9 is the structural representation of the piston of the present invention;

Figure 10 is a schematic structural diagram of the transmission structure of the present invention;

Figure 11 is a top view of the transmission structure of the present invention;

Figure 12 is a schematic structural diagram of the upper cover of the present invention;

13 is a schematic side view of the structure of the upper cover of the present invention.

Description of the numbers in the drawings: 100-washing tub 110-guide groove 200-upper cover 210-cover plate 220-baffle plate 230-baffle plate permeable hole 240-protrusion structure 300-transmission mechanism 310-external thread 400-piston 410- Internal thread 420-limiting block 430-pressing plate 440-permeable hole 450-piston rod 500-drive device 610-water inlet pipe 620-circulating water pipe 630-drain pipe 640circulating pump 700-base.

Detailed ways

Below in conjunction with accompanying drawing, a kind of reciprocating washing machine of the present invention is described in detail:

As shown in FIG. 1 , FIG. 2 , FIG. 3 , FIG. 4 , FIG. 5 and FIG. 6 , a reciprocating washing machine provided by the present invention includes a washing tub 100 , a transmission mechanism 300 , a piston 400 and a driving device 500 . The washing tub 100 includes upper and lower parts, the upper part of the washing tub 100 is a washing chamber used for holding/washing clothes, and a piston 400 is arranged in the washing chamber; the lower part of the washing tub 100 is a control chamber, and a transmission mechanism 300 is arranged in the control chamber, The input end of the transmission mechanism 300 is connected to the driving device 500 ; the transmission mechanism 300 and the piston 400 are screw driven, and the driving device 500 drives the piston 400 to reciprocate up and down in the washing chamber through the transmission mechanism 300 .

In the washing machine of the present invention, the piston 400 reciprocates up and down to squeeze and rub the clothes to achieve washing. Since the washing method adopted by the washing machine of the present invention is a reciprocating extrusion type, when washing clothes, the required amount of washing water only needs to soak the clothes, effectively solving the problem of large water consumption in existing washing machines.

The present invention divides the washing tub 100 into upper and lower parts, the upper part is a washing chamber, which holds and washes clothes, and the lower part is a control chamber, with a transmission mechanism 300 inside. The transmission mechanism 300 of the piston 400 is arranged in the control chamber at the lower part of the washing tub 100, so the height of the upper part of the washing tub should not be greater than the height of the lower part of the washing tub, preferably the height of the upper part of the washing tub is equal to the height of the lower part of the washing tub, so as to ensure the piston The 400 can move to the upper cover 200, and the clothes are squeezed therebetween. The washing machine of the present invention has a smaller volume, is suitable for miniaturization, and is suitable for various occasions.

The up-and-down reciprocating motion of the piston 400 is the key of the present invention. Therefore, how to better solve the transmission of power to realize the up-and-down reciprocating motion of the piston 400 is the technical problem to be solved by the present invention. The present invention creatively adopts a screw drive between the transmission mechanism 300 and the piston 400, and is driven by the driving device 500 to realize its up-and-down reciprocating motion. Specifically, how to realize the threaded connection between the piston 400 and the transmission mechanism 300, the present invention provides the following technical solutions:

As shown in FIG. 9 , the piston 400 of the present invention includes a pressing plate 430 and a piston rod 450 , and the piston rod 450 is threadedly connected to the transmission mechanism 300 . The side of the overall appearance of the piston 400 of the present invention is a "T" shape, the pressing plate 430 is arranged in the washing cavity of the washing tub 100, the shape and size of the pressing plate 430 are matched with the washing tub 100, and the cross-sectional shape of the washing tub 100 can be a square , circle or triangle, etc., the pressing plate 430 can be correspondingly arranged in square, circle and triangle, etc.

Further, the present invention provides a specific structure and connection relationship between the piston 400 and the transmission mechanism 300. The piston rod 450 is a cylindrical structure with an internal thread 410; as shown in FIG. 10 and FIG. 11 , the The transmission mechanism 300 is a hollow screw with an external thread 310 ; the screw is connected with the piston rod 450 in a screw thread. The connection of the transmission mechanism 300 and the piston 400 of the present invention realizes a kind of screw drive. The screw drive is a mechanical transmission that transmits power and motion by using the engagement of the screw and the nut. The transmission mechanism 300 in the present invention is equivalent to a screw, and the piston rod 450 of the piston 400 is equivalent to a nut.

Since the interior of the screw of the present invention is set to be hollow, and the interior of the screw is communicated with the washing drum 100, it can be realized by setting a series of water-permeable holes on the screw, so as to ensure that the washing water enters the washing drum and can be normally discharge.

As shown in FIG. 7 and FIG. 8 , the diameter of the control chamber of the present invention is smaller than that of the washing chamber; at least two guide grooves 110 are arranged in the control chamber, and a limit block 420 corresponding to the guide grooves 110 is arranged on the outer wall of the piston rod 450 .

The washing tub 100 of the present invention is arranged in two parts, the upper and lower parts with different diameters. Since the lower part of the washing tub 100 is not used for washing clothes, the size of the lower part is smaller than that of the upper part, which can reduce the water injection amount when washing clothes, and at the same time, the overall size of the washing machine can be reduced. smaller.

The guide groove 110 of the present invention runs through the control cavity of the entire washing tub 100 from top to bottom, and the limiting block 420 can be provided from top to bottom or only a part of it. The bottom of the outer wall is provided with a limit block matched with the guide groove 110 . At least two guide grooves are provided in the present invention. Preferably, two guide grooves 110 are symmetrically provided at the lower part of the washing tub 100 ; In the present invention, the piston 400 is restricted from rotating in the circumferential direction by its limit block 420, and only the helical motion transmitted by the transmission mechanism 300 can be converted into a straight-up and straight-down reciprocating motion, which can avoid the phenomenon of clothing entanglement caused by the piston rotation, and has better performance. washing effect.

In addition, the sealing between the driving device 500 and the washing tub 100 of the present invention adopts the sealing method of the deceleration clutch device of a common automatic washing machine and the outer tub, which is easy to operate and has a good sealing effect.

The pressing plate 430 of the piston 400 of the present invention is arranged in the washing chamber of the washing tub 100, the shape of the pressing plate 430 is circular, the diameter of the pressing plate 430 is smaller than the size of the washing chamber, and the gap between the pressing plate 430 and the washing tub 100 prevents the laundry during the washing process damaged by being caught. The pressure plate 430 is provided with a water-permeable hole 440. The water-permeable hole 440 allows the washing water to pass through when washing clothes. The water-permeable hole 440 should not be too large nor too small. The diameter of the water-permeable hole 440 determines the amount of water passing through. When the piston 400 reciprocates The amount of water passing through the permeable holes should not hinder its movement. The permeable holes 440 should include several. The specific number is determined by the area of the pressing plate 430 and the diameter of the permeable holes 440. The permeable holes 440 are evenly distributed on the pressing plate 430.

An upper cover 200 is movably connected to the opening of the washing cavity of the washing tub 100 of the present invention, and a squeezing cavity for squeezing clothes can be formed between the upper cover 200 and the piston 400 . As shown in FIG. 12 and FIG. 13 , the upper cover 200 of the present invention includes an upper cover plate 210 and a lower baffle 220 connected to each other, and the space between the cover plate 210 and the baffle 220 is hollow; Holes 230 and raised structures 240.

The present invention can more conveniently inject water into the washing tub 100 through the baffle permeable hole 230 of the upper cover 200 , or realize the circulation of the washing water in the washing tub 100 . The raised structures 240 are evenly distributed on the upper cover 200, mainly to increase the contact between the upper cover and the clothes, better achieve the effect of friction and rubbing, and improve the cleanliness of the clothes.

In order to realize the circulation of the washing water in the present invention, the upper cover 200 is connected to the circulating water pipe 620, and the other end of the circulating water pipe 620 is connected to the bottom of the washing tub 100; the circulating water pipe 620 is provided with a circulating water pump 640.

The upper cover 200 of the present invention is connected to the water inlet pipe 610 ; the bottom of the washing tub 100 is connected to the drain pipe 630 .

The washing machine of the present invention further includes a base 700 , the washing tub 100 is fixedly installed on the base 700 , the driving device 500 is arranged in the base 700 , and the driving device 500 and the washing tub 100 are sealedly connected.

The drive device 500 of the present invention may specifically select a motor.

The assembly method of the washing machine of the present invention is as follows: the motor and the circulating water pump 640 are installed on the base 700, and the washing tub 100 and the base 700 are fixed together; The limiting blocks 420 are correspondingly installed in the guide grooves 110 on both sides of the control chamber of the washing tub. The motor is connected to the transmission mechanism 300 . The upper cover 200 is installed on the outer cylinder through a connector, and the circulating water pipeline 620 is respectively connected to the upper cover 200 and the circulating water pump 640 .

The operation mode of the piston of the present invention is as follows: when the motor 500 drives the transmission mechanism 300 to rotate, the outer thread 310 on the transmission mechanism 300 rotates with it, and a force is generated between the outer thread 310 and the inner thread 410 inside the piston. The rotation of the piston 400 in the horizontal direction is restricted, so that the piston 400 can only move up and down. As the rotation direction of the motor changes, the piston 400 realizes the reciprocating motion. According to the thread direction in the drawings of this specification, when the motor rotates clockwise, the transmission mechanism 300 drives the piston 400 to move upward, and when the motor rotates counterclockwise, the transmission mechanism 300 drives the piston 400 to move downward.

The washing process of the washing machine of the present invention is as follows: open the upper cover 200 , put the clothes into the washing tub 100 , and close the upper cover 200 . The tap water enters the washing tub 100 through the water inlet pipe 610. When the washing water in the tub satisfies a certain water level condition, the motor starts to run, and the piston 400 reciprocates accordingly. When the piston 400 moves upward, the pressing plate 430 moves upward against the clothes. When it is close to the top position, the clothes are blocked by the baffle 220 of the upper cover 200. At this time, the pressing plate 430 and the baffle 220 form a pressing effect on the clothes. The friction between the clothes and the friction between the clothes and the pressing plate and the baffle of the upper cover is generated, so as to have a washing effect of removing stains on the clothes. When the piston 400 moves downward, the pressing force on the clothes is removed, and the clothes become loose and suspended in the washing water. The water permeable holes 440 on the pressing plate 430 and the baffle water permeable holes 230 on the baffle plate 220 allow washing to flow therethrough, so as to avoid excessive water resistance when the piston 400 moves and affect the running speed of the piston 400 .

The circulating water pump 640 pumps out the washing water from the bottom of the washing tub 100 , and then flushes it into the washing tub 100 from the water outlet of the upper cover 200 along the circulating water pipe 620 . Under the impact of the circulating water flow, the laundry in the washing tub 100 is turned over to a certain extent. In this way, when the piston 400 rises again, the clothes can be squeezed in different directions, so as to avoid squeezing the clothes into a solid piece and affecting the washing effect. The circulating water pump 640 may run all the time or at intervals. In this way, the clothes can be turned over, and the washing water in the drum can be circulated up and down, so that the detergent is evenly dissolved in the washing water.

Under the action of the reciprocating piston 400 and the circulating water pump 640, the clothes are continuously squeezed in all directions to achieve the purpose of washing.

When the washing is finished, the washing water is drained through the drain pipe 630 . The laundry can then be rinsed with fresh water again.

After rinsing, the rinsing water is discharged, and the piston 400 reciprocates several times to squeeze out the water in the clothes to achieve a certain degree of dehydration.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Within the scope of the technical solution of the present invention, personnel can make some changes or modifications to equivalent examples of equivalent changes by using the above-mentioned technical content, but any content that does not depart from the technical solution of the present invention is based on the technical solution of the present invention. Substantially any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the solutions of the present invention.

Claims (4)

1. A reciprocating washing machine, characterized in that it comprises a washing tub (100), a transmission mechanism (300), a piston (400) and a driving device (500), wherein the washing tub (100) comprises an upper washing cavity and a In the lower control chamber, a piston (400) is arranged in the washing chamber, and a transmission mechanism (300) is arranged in the control chamber, and the diameters of the washing chamber and the control chamber are different; the input end of the transmission mechanism (300) is connected to the driving device (500), A screw drive is used between the transmission mechanism (300) and the piston (400), and the driving device (500) drives the piston (400) to reciprocate up and down in the washing chamber through the transmission mechanism (300); The piston (400) comprises a pressure plate (430) and a piston rod (450) connected to the lower part of the pressure plate (430), and the piston rod (450) is threadedly connected with the transmission mechanism (300); The pressing plate (430) is arranged in the washing cavity of the washing tub (100), the pressing plate (430) is closely matched with the washing tub (100), and the pressing plate (430) is provided with water permeable holes (440); The diameter of the control cavity of the washing tub (100) is smaller than the diameter of the washing cavity; at least two guide grooves (110) are arranged in the control cavity, and the outer side of the piston rod (450) of the piston (400) is provided with the guide groove (110) the corresponding limit block (420); An upper cover (200) is movably connected to the opening of the washing cavity of the washing tub (100), and a squeezing cavity for pressing clothes can be formed between the upper cover (200) and the piston (400); the upper cover (200) comprises an upper cover plate (210) and a lower baffle plate (220) which are connected to each other, the cover plate (210) and the baffle plate (220) are hollow; the baffle plate (220) is provided with baffle water permeable holes ( 230), the baffle plate (220) is provided with a raised structure (240) on the side facing the inside of the washing tub (100); the upper cover (200) is communicated with a circulating water pipe (620), and the washing tub (100) A circulating water pump (640) is arranged at the bottom of the ); the other end of the circulating water pipe (620) is connected to the circulating water pump (640). 2. A reciprocating washing machine according to claim 1, characterized in that, the piston rod (450) is a cylindrical structure provided with an internal thread (410); the transmission mechanism (300) is a A hollow screw with an external thread (310); the hollow screw and the piston rod (450) are threadedly connected. 3 . The reciprocating washing machine according to claim 1 , wherein two guide grooves ( 110 ) are symmetrically arranged in the control chamber; the limiting block ( 420 ) is arranged on the piston rod ( 450 ). ) on the outer wall. The reciprocating washing machine according to claim 1, characterized in that, the washing machine further comprises a base (700), the washing tub (100) is fixedly installed on the base (700), and the driving device ( 500) is arranged in the base (700), and the driving device (500) is sealedly connected with the washing tub (100).