CN105586754A - Full-automatic washing machine - Google Patents

Abstract

The invention discloses a fully automatic washing machine, comprising an outer barrel and an inner barrel arranged in the outer barrel. The inner barrel is a water-holding barrel with a water outlet hole on the upper part. The washing machine also includes a water volume detection device for detecting the water intake in the inner barrel. The water quantity detecting device is a flow sensor arranged on the water inlet waterway, and the water quantity in the inner bucket is detected by the flow sensor. Alternatively, the water quantity detection device is a weight sensor, which is arranged at the connection between at least one suspender and the box body and/or the connection between the suspender and the suspender seat of the outer tub, and the weight sensor detects the change of the weight of the outer tub to judge water intake. Alternatively, the water quantity detection device is a weight sensor arranged on at least one foot of the washing machine, and the weight sensor detects changes in the overall weight of the washing machine to determine the water intake. The invention has the advantages of simple structure, convenient installation and water-saving characteristics.

Description

A fully automatic washing machine

technical field

The invention relates to the field of washing machines, in particular to a fully automatic washing machine, in particular to a fully automatic washing machine for detecting the amount of water entering an inner tub.

Background technique

The existing pulsator type washing machine, as shown in Figure 1, generally includes a pulsator 1', an inner tub 2', an outer tub 3' and a casing 4' arranged sequentially from the inside to the outside, wherein the pulsator 1' is arranged on The center of the bottom of the inner barrel 2' can be driven to rotate by the driving device 5'. The top of the inner tub 2' is provided with a balance ring 6', and the side wall of the inner tub 2' is longitudinally provided with multiple rows of dewatering holes 21', and the bottom of the inner tub 2' is provided with a drain hole 22', which is also The output shaft 51' of the driving device 5' is passed through. As shown in Figure 2, an air chamber 31' and a water level sensor (not shown) are provided at the bottom of the side wall of the outer barrel 3'; And the water level sensor is used to detect the water level of the outer tub 3', and the overflow port 32' is used to discharge excessive water intake from the overflow port 32' when the water level sensor is damaged.

The washing machine starts to work, the drain valve 8' is closed, and water enters the inner tub 2'. When the water flow fills the inner tub 2', it also fills the entire outer tub 3' through the dehydration hole 21' on the side wall of the inner tub 2', that is, Water is filled between the bottom of the outer barrel 3' and the bottom of the inner barrel 2', and between the side wall of the outer barrel 3' and the side wall of the inner barrel 2'; the water level in the barrel is detected by the air chamber 31' and the water level sensor. After the water reaches the set water level, the water intake is stopped, and the washing machine starts to wash. Specifically, the driving device 5' drives the pulsator 1' to rotate reciprocally. Driven by the rotation of the pulsator 1', the water and clothes in the inner tub 2' will The clothes are tumbling, and the clothes rub against each other, and at the same time, the tumbling clothes repeatedly rub against the pulsator and the side wall of the inner tub to achieve the purpose of washing; after washing, the washing machine needs to discharge the water in the tub, and then dehydrate the clothes. Specifically, When draining, open the drain valve 8', and the water flow between the outer barrel 3' and the inner barrel 2' will be drained out of the box 4' through the drain port 7' at the bottom of the outer barrel 3', the drain valve 8', and the drain pipe 9' At the same time, the water in the inner barrel 2' is discharged from the dehydration hole 21' to keep the liquid level consistent with the outer barrel 3', until finally the water in the inner barrel 2' flows downward, and flows into the outer barrel from the drain hole 22' at the bottom of the inner barrel 2'. barrel 3', and then discharged from the drain port 7' at the bottom of the outer barrel 3'; during dehydration, the driving device 5' drives the inner barrel 2' to rotate at a high speed, and the moisture in the clothes is discharged from the side wall of the inner barrel 2' under the action of centrifugal force The dehydration hole 21' and the drain hole 22' at the bottom are discharged into the outer tub 3', and then discharged out of the washing machine by the drain port 7' and the drain pipe 9' (referring to Fig. 1).

Due to the existing pulsator type washing machine, the part of water filled between the inner tub and the outer tub wall does not participate in washing, and the water that really participates in washing is only the part in the inner tub, which causes a large waste of water resources. In addition, the inside and outside Too much water between the tubs will also reduce the concentration of detergent/laundry powder in the wash liquor.

At the same time, due to the frequent flow of water in and out between the inner barrel and the outer barrel, after continuous use, the area between the side walls of the inner barrel and the outer barrel has also become a space for dirt. The cellulose of clothes, the organic matter of the human body and the dust and bacteria brought in by the clothes are very likely to stay between the side walls of the inner tub and the outer tub. These molds are caused by a large amount of dirt accumulated inside the washing machine that has been used for a long time and cannot be effectively removed to breed and reproduce. If the dirt that is invisible to the user is not removed, the bacteria will adhere to the clothes again after the next wash. Bring it to the human body, causing the problem of cross-infection in laundry.

In addition, since the lint floats in the water when the washing machine is washed, using the existing drainage method, the water is discharged from the lower part of the inner tub, and finally the lint will remain on the clothes, affecting the washing effect of the clothes.

In view of this, the present invention is proposed.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a fully automatic washing machine whose inner tub is a water-filled tub and detects the amount of water entering the inner tub. The rotating speed of the inner barrel uses the centrifugal force of the inner barrel to discharge the water from the water outlet hole on the upper part of the inner barrel.

In order to solve the above-mentioned technical problems, the basic idea of the technical solution adopted by the present invention is: a fully automatic washing machine, including an outer tub and an inner tub arranged in the outer tub, the inner tub is a water-filled tub, and a water outlet hole is arranged on the upper part, and the described washing machine It also includes a water volume detection device for detecting the water intake in the inner tub.

Further, the water quantity detecting device is a flow sensor arranged on the water inlet waterway, and the water quantity in the inner bucket is detected by the flow sensor.

Or an alternative to the above solution is that the water quantity detection device is a weight sensor, which is arranged at the connection between at least one suspender and the box body and/or the connection between the suspender and the outer tub suspender seat, and is detected by the weight sensor The change of the weight of the outer barrel judges the amount of water intake.

Further, a weight sensor is installed at the joint between the two suspenders and the box body and/or the joint between the suspender and the suspender seat of the outer tub.

Further, the weight sensors are respectively installed at the joints of the two spaced apart suspenders and the box body, or respectively installed at the joints of the two spaced apart suspenders and the outer barrel suspender seat.

Further, the box body is provided with an installation base, the upper end of the boom is covered with a boom seat, supported on the installation base by the boom seat, and the weight sensor is arranged between the boom seat and the installation base, Or the weight sensor is located in the suspender seat.

Further, the lower end of the suspender is provided with a shock absorber, and the shock absorber is supported under the suspender seat of the outer barrel, and the weight sensor is arranged between the shock absorber and the suspender seat of the outer barrel or in the shock absorber.

Further, the damping device includes a sleeve and a damping spring installed in the sleeve, and the weight sensor is arranged in the sleeve and installed at the upper end or the lower end of the damping spring.

Alternatively, the above alternative solution is that the water volume detection device is a weight sensor arranged on at least one foot of the washing machine, and the weight sensor detects changes in the overall weight of the washing machine to determine the water intake.

Further, weight sensors are installed on at least two box feet.

Further, the weight sensor is also a weighing device for weighing the weight of the clothes in the inner bucket.

Further, the washing machine is not provided with a drain valve, and the drain port communicates with the drain pipe. When draining water, the inner bucket is driven to rotate at a high speed to generate centrifugal force, and the water in the inner bucket and the moisture in the clothes spiral upward and are discharged to the outer bucket through the water outlet hole of the inner bucket, and are directly discharged from the drain port and the drain pipe.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

The inner barrel of the washing machine of the present invention is a water-filled barrel, and the washing water does not need to enter the area between the inner barrel and the outer barrel, and only needs to be injected with an appropriate amount of water into the inner barrel, thereby greatly saving washing water, and the water saving rate reaches 30%-40%; In addition, the area between the inner tub and the outer tub no longer participates in washing, and the dirt and bacteria that grow in the area between the inner tub and the outer tub will not come into contact with the clothes in the inner tub, thereby effectively avoiding cross-infection of bacteria. Make the use of the washing machine more hygienic, environmentally friendly and safe; when dehydrating and draining, the high-speed rotation of the inner tub drives the water to flow upward and be discharged from the outlet hole, so that the floating lint in the water will not remain on the clothes, and it will be completely discharged, and the washing will be cleaner.

Since the washing machine of the present invention no longer has water in the outer tub, and the inner tub is a rotating barrel, the existing method of using the air chamber of the outer tub and the water level sensor to detect the water intake of the inner tub cannot be used in the washing machine of the present invention. Detect the water intake of the washing machine or the weight change of the outer tub/cabinet to judge the appropriate amount of water in the inner tub, so as to cooperate with the clothes in the inner tub for washing, avoiding the decrease in the concentration of the washing liquid and the occurrence of overflow caused by excessive water intake, without affecting the washing Water saving is realized under the condition of the best effect; at the same time, the situation of poor washing effect caused by insufficient water intake is also avoided.

The improvement of the invention to the detection of the water intake of the inner barrel makes the air chamber and the water level sensor on the outer barrel cancelled, the production and assembly of the outer barrel are simpler, and the cost is further reduced.

Description of drawings

Fig. 1 is a schematic structural view of a prior art washing machine;

Fig. 2 is a structural schematic diagram of the outer tub of a washing machine in the prior art;

Fig. 3 is a structural schematic diagram of the washing machine of the present invention;

Fig. 4 is a schematic diagram of the installation position of the gravity sensor of the washing machine of the present invention;

5 to 9 are schematic diagrams of different installation structures of the gravity sensor of the present invention;

Fig. 10 is a schematic diagram of another gravity sensor installation position of the washing machine of the present invention.

detailed description

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in Fig. 3 and Fig. 4, the fully automatic washing machine of the present invention comprises a casing 1, an outer tub 2 arranged in the casing 1, an inner tub 3 arranged in the outer tub 2 and a pulsator 4 arranged in the inner tub 3, Wherein, the outer tub 2 is connected to the casing 1 of the washing machine through a plurality of suspension rods 5, and the lower part of the outer tub 2 is provided with a driving device 6 for driving the inner tub 3 and the pulsator 4 to rotate; The upper part is provided with a water outlet hole 31, which is generally located at an area above 5/6 of the height of the inner tub body 32, preferably at an area above 9/10 of the height of the inner tub body 32, so as to satisfy the agitated water flow during washing. Can not be discharged from this water outlet hole 31, and the top opening of inner barrel 3 is provided with balance ring 33, and water outlet hole 31 is located at the below of balance ring 33, and inner barrel body 32 peripheral walls and inner barrel bottom 34 of water outlet hole 31 bottoms are all sealed, and inner barrel bottom The lower part of 34 is provided with an inner barrel shaft 61 passing through the outer barrel bottom 21 to connect with the driving device 6, and driven to rotate by the driving device 6, the inner barrel shaft 61 and the outer barrel bottom 21 are sealed; the pulsator 4 is arranged at the bottom center of the inner barrel 3, The pulsator shaft 62 passes through the inner tub bottom 34 and is coaxially arranged in the inner tub shaft 61 , is connected with the driving device 6 , and is driven to rotate by the driving device 6 , and is sealed between the pulsator shaft 62 and the inner tub bottom 34 . Since the inner tub 3 is a water-filled tub, the water only enters the inner tub 3, and no washing water is stored in the outer tub 2. Therefore, the washing machine of the present invention is also provided with a water volume detection device 7 for detecting the water intake in the inner tub 3, while the outer tub does not need to be installed. There are air chambers and water level sensors.

The washing machine starts to work, water enters the inner tub 3, and the water volume detection device 7 detects the water intake in the inner tub 3. After the water in the inner tub 3 reaches the set water volume, the water intake is stopped, and the washing machine starts washing. Specifically, the driving device 6 The pulsator 4 is driven to rotate back and forth. Driven by the rotation of the pulsator 4, the water and clothes in the inner tub 3 will roll, and the clothes will rub against each other. To achieve the purpose of washing, it is also possible to control the driving device 6 to drive the pulsator 4 and the inner tub 3 to rotate forward and reverse each other or to rotate at different speeds in the same direction. Since the existing fully automatic washing machine has multiple washing methods for driving the inner tub and the pulsator to rotate, this The washing method of driving the inner tub and the pulsator to rotate is not the purpose of improving the washing machine of the present invention, so it is not necessary to give examples one by one; after washing, the washing machine needs to discharge the water in the inner tub 3, and then dehydrate the clothes. Specifically, the driving device 6 drives The inner barrel 3 increases the speed within the set range, and the water in the inner barrel 3 and the water in the clothes spirally rise along the inner wall of the inner barrel under the action of centrifugal force, and are discharged to the outer barrel 2 through the water outlet hole 31 on the upper part of the inner barrel, and then discharged from the lower part of the outer barrel 2. The drain port 8 is discharged.

Further, the drain outlet 8 at the bottom of the outer tub of the washing machine of the present invention is not provided with a drain valve. When the washing machine drains water, the water in the inner tub 3 and the moisture in the clothing spiral upwards and are discharged to the outer tub 2 through the water outlet hole 31 of the inner tub, and then drained from the drain outlet. 8, drain pipe 9 is discharged. When the washing machine is a bottom-drainage washing machine, the drain port is directly connected with the drain pipe; when the washing machine is a top-drainage washing machine, the drain port is connected with the drain pipe through a drain pump.

Embodiment one

As shown in Figure 3, the water volume detection device 7 of the washing machine of the present invention is a flow sensor 71 located on the water inlet waterway. the amount of water in.

Embodiment two

As shown in Figure 4, different from the above-mentioned embodiments, the water quantity detection device 7 described in this embodiment is a weight sensor 72, which is located at the connection between at least one boom 5 and the box body 1 and/or the connection between the boom 5 and the outer tub At the joint of the boom seat 22, the weight sensor 72 detects the change in the weight of the outer tub 2 to determine the water intake of the inner tub.

The installation method of the weight sensor can be as follows: 1. A weight sensor is installed at the connection between a suspension rod 5 of the washing machine and the washing machine cabinet 1 and/or the connection between the suspension rod 5 and the suspension rod seat 22 of the washing machine outer tub 72. This installation method is low in cost, but due to the large deviation between the center of gravity of the outer tub and the installation position of the weight sensor, there is a certain error in the detection value. Since the amount of washing water is generally large, the impact of this error on the washing effect is not large. This installation method can be used.

2. A weight sensor 72 is installed at the joint between the two suspenders 5 and the box body 1 and/or the joint between the suspender 5 and the outer tub suspender seat 22 . This installation method includes installing a weight sensor 72 at the joint between one suspender 5 and the box body 1 and at the joint between the other suspender 5 and the tub suspender seat 22 (refer to FIG. 4 ). The average value is calculated by the values detected by the two weight sensors, and the error is small.

Preferably, the weight sensors 72 are respectively installed at the connection between the two spaced suspenders 5 and the box body 1, or respectively installed at the connection between the two spaced apart suspenders 5 and the outer tub suspender seat 22. place. The washing machine cabinet 1 and the outer tub 2 are fixed by four suspenders 5, and this installation method further considers the center of gravity of the outer tub 2, so that the average error of the detected values is smaller.

3. A weight sensor 72 is installed at the joints between three or more suspenders 5 and the box body 1 and/or the joints between the suspenders 5 and the outer barrel suspender seat 22 . This installation method needs to install more weight sensors, which is costly, but the measurement is accurate.

Embodiment three

As shown in Figure 5, the washing machine cabinet 1 of the present embodiment is provided with an installation base 10, the installation base 10 is a support plate structure, the upper end of the boom 5 is covered with a boom seat 51, and the boom seat 51 is supported on On the installation base 10 , the weight sensor 72 is disposed between the boom seat 51 and the installation base 10 .

Or, as shown in Figure 6, the boom base 51 is slidably sleeved on the boom 5, the boom base 51 is supported on the installation base 10, the upper end of the boom 5 is also provided with a gasket 52, and the weight sensor 72 is located on the pad. Between the sheet 52 and the boom seat 51.

Embodiment four

As shown in Figure 7, the lower end of the boom 5 in this embodiment is provided with a shock absorber 53, the shock absorber 53 is supported under the outer barrel boom seat 22, and the weight sensor 72 is located between the shock absorber 53 and the outer barrel boom Between seats 22.

Embodiment five

As shown in Fig. 8 and Fig. 9, the lower end of the suspender 5 in this embodiment is provided with a shock absorber 53, the shock absorber 53 is supported under the outer barrel suspender seat 22, and the weight sensor 72 is arranged in the shock absorber 53, The damping device 53 includes a sleeve 531 and a damping spring 532 installed in the sleeve. The weight sensor 72 is located in the sleeve and installed at the upper end of the damping spring 532 .

Specifically, the upper end of the sleeve 531 is provided with a cover 533, and a hollow positioning column 534 is coaxially provided on the cover 533 for the suspender to pass through. One end of the positioning column 534 extends to the inside of the sleeve 531, and the other end passes through the outer barrel. The mounting hole of the boom seat 22, the upper end of the damping spring 532 is placed on the positioning column 534, and the positioning column 534 between the shock absorbing spring 532 and the cover is provided with a gasket 535 that can slide up and down, and the weight sensor 72 is set. between the gasket 535 and the cover 533 (see FIG. 8 ).

Alternatively, the weight sensor 72 is installed at the lower end of the damping spring 532 . Specifically, the lower end of the sleeve 531 is an open structure, the damping spring 532 is installed in the sleeve 531 from the opening of the lower end, and the open end of the sleeve 531 is provided with a fixed frame 536 and a support frame 537 sequentially from the inside to the outside. 536 and support frame 537 can slide up and down in sleeve pipe 531, and shock absorbing spring 532 lower end is enclosed within on the fixed frame 536, and certain distance is provided between fixed frame 536 and positioning column 537, as the shock absorption of shock absorbing spring 532 To compress the space, the lower end of the suspension rod 5 passes through the fixing frame 536 and the supporting frame 537 to form a supporting convex under the supporting frame 537 , and the weight sensor 72 is arranged between the fixing frame 536 and the supporting frame 537 . Further, the support frame 537 is provided with a sliding cup 538, which slides up and down in the casing 531 and is movably sealed with the inner wall of the casing 531, and the weight sensor 72 is arranged between the fixed frame 536 and the sliding cup 538 (see FIG. 9 ).

Embodiment six

As shown in FIG. 10 , the difference between the present embodiment and the second embodiment is that the weight sensor 72 is installed on the foot 11 of the washing machine cabinet, and judges the water intake of the inner tub by detecting the change of the overall weight of the washing machine. Its installation method on the foot 11 is the same as that of Embodiment 2. It can be installed on one foot, or on two or three or four feet. Preferably, from the perspective of detection accuracy and the cost of the washing machine Consider, adopt the scheme that weight sensor is installed on the box body foot of two intervals.

Embodiment seven

On the basis of Embodiment 2 to Embodiment 6, as shown in Fig. 4 to Fig. 10 , the above-mentioned weight sensor 72 installed in the washing machine of the present invention is also a weighing device for weighing the clothes in the inner tub. When washing clothes, the weight sensor first weighs the weight of the clothes put in the inner tub, and then enters the water, and judges the amount of water in the inner tub according to the change of the value measured by the weight sensor.

The implementations in the above examples can be further combined or replaced, and the examples are only descriptions of preferred embodiments of the present invention, and are not intended to limit the concept and scope of the present invention. Various changes and improvements to the technical solutions of the present invention made by those skilled in the art belong to the protection scope of the present invention.

Claims (10)

1. A fully automatic washing machine, comprising an outer tub and an inner tub located in the outer tub, the inner tub is a water-filled tub, and the upper part is provided with a water outlet hole, it is characterized in that: the described washing machine also includes a water quantity detection device for detecting the water intake in the inner tub device. 2 . The fully automatic washing machine according to claim 1 , wherein the water quantity detecting device is a flow sensor arranged on the water inlet waterway, and the water quantity in the inner tub is detected by the flow sensor. 3 . 3. A fully automatic washing machine according to claim 1, characterized in that: the water quantity detection device is a weight sensor, which is arranged at the joint between at least one suspender and the box body and/or the suspension between the suspender and the outer tub. At the joint of the rod seat, the weight sensor detects the change of the weight of the outer barrel to judge the amount of water intake. 4 . The fully automatic washing machine according to claim 3 , wherein a weight sensor is installed at the joint between the two suspenders and the box body and/or the joint between the suspenders and the outer tub suspender seat. 5. A fully automatic washing machine according to claim 4, characterized in that: said weight sensors are respectively installed at the joints of two suspenders spaced apart from each other and the box body, or are respectively installed at two spaced apart suspenders. The connection between the root boom and the outer bucket boom seat. 6. A fully automatic washing machine according to claim 3, characterized in that: the box is provided with an installation base, the upper end of the boom is provided with a boom seat, and the boom seat is supported on the installation base On the seat, the weight sensor is arranged between the boom seat and the installation base, or the weight sensor is arranged in the boom seat. 7. A fully automatic washing machine according to claim 3 or 6, characterized in that: the lower end of the suspension rod is provided with a shock absorbing device, the shock absorbing device is supported under the outer barrel suspender seat, and the weight sensor is located at the bottom of the suspension rod. between the shock device and the suspender seat of the outer tub or in the shock absorber. 8. A fully automatic washing machine according to claim 1, characterized in that: the water quantity detection device is a weight sensor arranged on at least one foot of the washing machine, and the change of the overall weight of the washing machine is detected by the weight sensor Determine the water intake. 9. A fully automatic washing machine according to claim 8, characterized in that weight sensors are installed on at least two feet of the cabinet. 10. A fully automatic washing machine according to any one of claims 3-9, characterized in that: the weight sensor is a weighing device for weighing the clothes in the inner tub.