A washing machine that squeezes from top to bottom

Abstract

A washing machine that squeezes from top to bottom, wherein a door, a docking piece and a squeezing cloth form a squeezing space, a hollow shaft is installed on the side wall of the docking piece and communicates with the squeezing space, and the characteristics are: the dehydration shaft has a vertical through hole, the filter is installed on the top surface of the washing bottom plate and covers the through hole of the dehydration shaft; one pipe mouth of the water pump is connected and communicated with the hollow shaft through a water pipe, a water pipe joint and a docking pipe, and the other pipe mouth of the water pump is connected and communicated with the dehydration shaft through a connecting pipe, and the water pump can suck washing water from the washing tub and transport it to the squeezing space to drive the squeezing cloth to squeeze the mixture of clothes and water in the washing tub; the washing water entering the squeezing space can flow back to the washing tub under the joint action of the water pump and the control device to complete a washing cycle; the device can complete multiple washing cycles. The refluxed washing water is used to flush the clothes from bottom to top, saving electric energy and time, and can also make the clothes and washing water evenly mixed, thereby improving the effect and efficiency of squeezing washing.

Description

Technical Field

[0001] The present invention relates to an extrusion type washing machine, in particular to a washing machine which performs extrusion from top to bottom; the washing machine uses a water pump to transport washing water into an extrusion space so as to drive an extrusion cloth to extrude a mixture of clothes and water in a washing tub from top to bottom, and the washing water entering the extrusion space flows back to the washing tub from the through hole of a dehydration shaft to flush the clothes. Background Art

[0002] The invention patent application with application number 201710447305.0 discloses a technical solution for a washing machine that squeezes and washes clothes from top to bottom. The main contents are: a squeezing washing machine includes a box body, a door, a frame, a washing tub and a water tub. The door is installed on the box body, and a door locking device is provided on the door and the frame; a docking piece is provided on the bottom surface of the door, and the docking piece has a side wall and an opening at the lower part. An axial hole is provided in the middle part of the side wall of the docking piece, and a hollow shaft is installed in the axial hole. The outer end of the hollow shaft is provided with a flange; a squeezing cloth is installed at the lower part of the docking piece. The door, the docking piece and the squeeze cloth can form an squeeze space, or the docking piece and the squeeze cloth can form an squeeze space, and the squeeze space can only be connected to the outside through a hollow shaft; the washing tub includes a washing side wall and a washing bottom plate; the washing side wall and the washing bottom plate are provided with a plurality of water holes penetrating the inner and outer spaces of the washing tub, and the middle of the washing bottom plate is provided with an axial hole; the water storage tub includes a water storage side wall and a water storage bottom plate; the middle of the water storage bottom plate is provided with an axial hole; a dehydration shaft is provided, and the upper part of the dehydration shaft is installed in the axial hole of the washing bottom plate, and the dehydration shaft is provided with a dehydration shaft. The middle part is installed in the axial hole of the water-holding bottom plate; a water pipe joint is provided at the bottom of the water-holding tub; a positioning device is provided, the positioning device is connected with the water-holding bottom plate and the dehydration shaft, and the positioning device can determine the axial position of the dehydration shaft; a washing motor and a water pump are provided, and the washing motor and the water pump are installed on the outer surface of the water-holding tub; the washing motor establishes a transmission relationship with the water pump through a transmission device; the suction and discharge pipe A of the water pump is connected with the outer end of the hollow shaft through the extrusion waterway main pipe and the butt pipe, and the suction and discharge pipe A of the water pump is communicated with the through hole of the hollow shaft; the suction and discharge pipe B of the water pump is connected with the water pipe through the pipeline connection device The joints are connected and communicated; the water pump can suck washing water from the water tub and transport it to the squeezing space, the squeezing cloth can move under the drive of the water transported by the water pump and the squeezing cloth can squeeze the mixture of clothes and water in the washing tub; the water entering the squeezing space can flow back to the water tub under the action of the water pump or the joint action of the water pump and the control device to complete a washing cycle; and the device can complete multiple washing cycles; a dehydration motor is provided, the dehydration motor is connected to the water tub, and the dehydration motor establishes a transmission relationship with the dehydration shaft through the transmission device.

[0003] The disadvantages of this technical solution are: 1. The washing water that flows back from the squeezing space to the space between the water tub and the washing tub has a certain kinetic energy; however, since the washing water cannot directly flush the clothes, its kinetic energy is not utilized, which wastes the kinetic energy. After the clothes are squeezed, the clothes are not evenly mixed with water, the contact between the clothes is relatively close, and the washing water wrapped in the clothes is relatively small, which affects the effect and efficiency of squeezing washing; the washing water in the water tub flows into the washing tub by the water level difference, and the force of flushing the clothes is too small, and it is difficult to promote the uniform mixing of the clothes and the washing water. If the kinetic energy of the refluxed washing water is used to directly flush the clothes in the washing tub, it not only saves energy and washing time, but also promotes the uniform mixing of the clothes and the washing water. 2. When the squeezing washing cycle is performed, the air in the water pipe and the squeezing space is difficult to be discharged, which affects the effect and efficiency of squeezing washing. 3. The end face of the flange of the hollow shaft and the end face of the butt pipe are both vertical. Although a sealing ring can be set between the two, the sealing force is still insufficient; because the door is closed downward, and the sealing of the two requires horizontal force. If the seal is not tight enough and causes washing water leakage, it will not only reduce the washing efficiency but also corrode the washing machine. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantage that the existing washing machine that squeezes from top to bottom cannot use the kinetic energy of the returned washing water to wash the clothes, and provide a washing machine that squeezes from top to bottom, which can use the kinetic energy of the washing water that flows back from the squeezing space into the water tub to wash the clothes. The technical solution adopted by the present invention is:

[0005] 1. A washing machine that squeezes from top to bottom, comprising a housing, a door, a frame, a washing tub, a water tub, a dehydration shaft, a dehydration motor, a washing motor, a water pump and a positioning device for the dehydration shaft, wherein the door is mounted on the housing, and a locking device for the door is mounted on the door and the frame; a docking piece is mounted on the bottom surface of the door, wherein the docking piece has a side wall and an opening at the bottom, an axial hole is mounted in the middle of the side wall of the docking piece, a hollow shaft is mounted in the axial hole, and a flange is mounted at the outer end of the hollow shaft; an extrusion cloth is mounted at the bottom of the docking piece and the extrusion cloth closes the opening at the bottom of the docking piece; the door, the docking piece and the extrusion cloth can form an extrusion space, or the docking piece and the extrusion cloth can form an extrusion space, and the extrusion space can only be connected to the outside through the hollow shaft;

[0006] The washing tub comprises a washing side wall and a washing bottom plate; the washing side wall and the washing bottom plate are provided with a plurality of water holes penetrating the inner and outer spaces of the washing tub, and the middle portion of the washing bottom plate is provided with an axial hole;

[0007] The water storage tub comprises a water storage side wall and a water storage bottom plate; a shaft hole is provided in the middle of the water storage bottom plate;

[0008] The upper part of the dehydration shaft is installed in the shaft hole of the washing bottom plate, the middle part of the dehydration shaft is installed in the shaft hole of the water holding bottom plate, and a sealing member is provided between the dehydration shaft and the shaft hole of the water holding bottom plate; the positioning device is connected with the water holding bottom plate and the dehydration shaft, and the positioning device can determine the axial position of the dehydration shaft;

[0009] The washing motor and the water pump are installed on the outer surface of the water tub, and the washing motor establishes a transmission relationship with the water pump through a transmission device; the dehydration motor is connected to the water tub, and the dehydration motor establishes a transmission relationship with the dehydration shaft through the transmission device;

[0010] The feature is that: the dehydration shaft has through holes passing through both ends thereof, and a filter screen is arranged, and the filter screen is installed on the top surface of the washing bottom plate and can cover the through holes of the dehydration shaft;

[0011] The suction and discharge pipe A of the water pump is connected to the outer end of the hollow shaft through a pipeline connecting device, and the suction and discharge pipe A of the water pump is communicated with the through hole of the hollow shaft; the suction and discharge pipe B of the water pump is connected to the lower part of the dehydration shaft through a pipeline connecting device and is communicated with the through hole of the dehydration shaft; a sealing member is provided between the pipeline connecting device and the dehydration shaft, and the dehydration shaft can drive the washing barrel to rotate; the water pump can suck washing water from the washing barrel and transport it to the squeezing space, the squeezing cloth can move driven by the washing water transported by the water pump, and the squeezing cloth can squeeze the mixture of clothes and water in the washing barrel; the washing water entering the squeezing space can flow back to the washing barrel under the action of the water pump or can flow back to the washing barrel under the joint action of the water pump and the control device to complete a washing cycle; and the device can complete multiple washing cycles.

[0012] Note: When the docking piece is in an inverted barrel shape, the docking piece and the extruded cloth can form an extrusion space; when the docking piece is cylindrical, the door, the docking piece and the extruded cloth can form an extrusion space, but a sealing gasket is preferably provided between the door and the docking piece.

[0013] The following are additional technical features for the above technical solution:

[0014] 1.1. The water pump is a bidirectional water pump, which can not only suck the washing water from the washing tub and transport it to the squeezing space to drive the squeezing cloth to move, and the squeezing cloth can squeeze the mixture of clothes and water in the washing tub, but also suck out the washing water in the squeezing space and transport it to the washing tub to rinse the clothes.

[0015] 1.2. The water pump is a one-way water pump. The discharge pipe of the one-way water pump is connected and communicated with the starting point of the squeeze water inflow pipeline and the starting point of the inflow dehydration axis pipeline through a tee A. The opening and closing of the squeeze water inflow pipeline is controlled by the solenoid valve B arranged on the pipeline, and the opening and closing of the inflow dehydration axis pipeline is controlled by the solenoid valve A arranged on the pipeline; the suction pipe of the one-way water pump is connected and communicated with the end point of the outflow dehydration axis pipeline and the end point of the squeeze water outflow pipeline through a tee B. The opening and closing of the outflow dehydration axis pipeline is controlled by the solenoid valve C arranged on the pipeline, and the opening and closing of the squeeze water outflow pipeline is controlled by the solenoid valve C arranged on the pipeline. The solenoid valve D on the pipeline is controlled; the end point of the squeeze water inlet pipeline is connected and communicated with the starting point of the squeeze water outflow pipeline and the starting point of the squeeze water main pipe through a tee D, and the end point of the squeeze water main pipe is connected to the outer end of the hollow shaft through a butt pipe and communicated with the through hole of the hollow shaft; the end point of the pipeline flowing into the dehydration shaft is connected and communicated with the starting point of the pipeline flowing out of the dehydration shaft and the starting point of the washing tub water main pipe through a tee C, and the end point of the washing tub water main pipe is connected and communicated with the dehydration shaft; the solenoid valve A, solenoid valve B, solenoid valve C, and solenoid valve D are all two-position two-way solenoid valves.

[0016] Additional technical features proposed for 1.2:

[0017] 1.2.1. A connecting pipeline and a tee E are provided; the end point of the connecting water pipeline is connected and communicated with the starting point of the extrusion water inflow pipeline and the starting point of the drainage pipeline through the tee E; the starting point of the connecting pipeline is connected and communicated with the discharge pipe of the one-way water pump and the starting point of the pipeline flowing into the dehydration shaft through the tee A, and a drainage solenoid valve is provided on the drainage pipeline, and the drainage solenoid valve is a two-position two-way solenoid valve.

[0018] Description: (1) This device can not only transport washing water from the washing tub to the squeezing space to drive the squeezing cloth to squeeze the clothes in the washing tub, but also suck out the washing water in the squeezing space and transport it to the washing tub, so that the washing water reciprocates between the two. (2) Figure 8 In the figure, the water pipe with the arrow pointing upward is the squeeze water main pipe, and the water pipe with the arrow pointing downward is the washing tub water main pipe.

[0019] Additional technical features proposed for 1.2.1:

[0020] 1.2.1.1. A water pipe joint for a water tub is arranged on the water storage side wall or the water storage bottom plate, and the water pipe joint for the water tub can conduct the space inside and outside the water tub; the three-way C is replaced with a four-way A, and the starting point of the main water pipe of the washing tub is connected and communicated with the first pipe opening of the four-way; the water pipe joint for the water tub is connected and communicated with one pipe opening of the electromagnetic valve E through a water pipe or a pipeline connecting device, and the other pipe opening of the electromagnetic valve E is connected and communicated with the second pipe opening of the four-way through a water pipe or a pipeline connecting device; the end point of the pipeline flowing into the dehydration shaft is connected and communicated with the third pipe opening of the four-way; the starting point of the pipeline flowing out of the dehydration shaft is connected and communicated with the fourth pipe opening of the four-way; the electromagnetic valve E is a two-position two-way electromagnetic valve.

[0021] Additional technical features proposed for 1.2.1.1:

[0022] 1.2.1.1.1. Replace the three-way A with the four-way B, and the three pipelines originally connected and communicated with the three-way A are respectively connected and communicated with one pipe opening of the four-way B; a three-position three-way water inlet solenoid valve is set, and one pipe opening of the three-position three-way water inlet solenoid valve is connected and communicated with one pipe opening of the four-way B through a water pipe or a pipeline connecting device.

[0023] In order to solve the problem that the water pipe of the existing washing machine that is squeezed from top to bottom and the air in the squeeze space are difficult to be discharged, the following technical solution is proposed:

[0024] 1.3. An exhaust solenoid valve is provided on the upper part of the docking piece, or an exhaust solenoid valve is provided on the docking pipe, or an exhaust solenoid valve is provided at the highest point of the extrusion water main pipe, and the exhaust solenoid valve is a two-position two-way solenoid valve.

[0025] Additional technical features are proposed for all the above technical solutions:

[0026] (1) The extruded cloth is made of latex or rubber.

[0027] (2) The extruded cloth is barrel-shaped and has a plurality of wrinkles. The bottom surface of the extruded cloth is provided with a plurality of extrusion protrusions. The outer surface of the extruded cloth is provided with a protective tube. The upper part of the protective tube is connected to the upper part of the extruded cloth. The bottom surface of the protective tube is higher than the top surface of the barrel ring.

[0028] (3) A program controller is provided, wherein the solenoid valve A, the solenoid valve B, the solenoid valve C, the solenoid valve D, the solenoid valve E, the exhaust solenoid valve, the drain solenoid valve, the three-position three-way water inlet solenoid valve, the washing motor and the dehydration motor are connected to the program controller by wires and controlled by the program controller.

[0029] Explanation: When extruding from top to bottom, the extruded cloth will be greatly deformed, so it is necessary to use materials with good elasticity to produce the extruded cloth. Latex has good elasticity and can be used to produce extruded cloth; if the wall of the extruded cloth made of latex is thicker, its elasticity will be greater, which is conducive to the reflux of washing water.

[0030] In order to solve the problem that the sealing force between the flange end face of the hollow shaft of the existing washing machine that is squeezed from top to bottom and the end face of the butt pipe is insufficient, resulting in a loose seal and leakage of washing water, the following technical solution is proposed:

[0031] 1.4. When the door axis is located on the left side of the box body, the end face of the butt-joint tube faces the upper right side of the box body, and the angle between the end face of the butt-joint tube and the vertical plane perpendicular to the center line of the butt-joint hollow shaft is greater than 0°; the end face of the flange of the butt-joint hollow shaft faces the lower left side of the box body, and the angle between the end face of the flange of the butt-joint hollow shaft and the vertical plane perpendicular to the center line of the butt-joint hollow shaft is greater than 0°; a sealing ring is provided between the end face of the butt-joint tube and the end face of the flange of the butt-joint hollow shaft.

[0032] Explanation: (1) "When the door shaft is located on the left side of the box, the end face of the butt-joint pipe faces the upper right, and the end face of the flange of the butt-joint hollow shaft faces the lower left", which means that the counterclockwise rotation angle between the end face of the butt-joint pipe and the end face of the flange of the butt-joint hollow shaft is greater than 0°. (2) When two planes intersect, there is a large angle and a small angle, which refers to the small angle here.

[0033] The following restrictions are made to 1.4:

[0034] 1.4.1 The angle between the end face of the butt-jointed tube and the vertical plane perpendicular to the center line of the butt-jointed hollow shaft is 20°-60°; the angle between the end face of the flange of the butt-jointed hollow shaft and the vertical plane perpendicular to the center line of the butt-jointed hollow shaft is 20°-60°.

[0035] The following restrictions are made to 1.4.1:

[0036] 1.4.1.1 The angle between the end face of the butt-jointed tube and the vertical plane perpendicular to the centerline of the butt-jointed hollow shaft is equal to the angle between the end face of the flange of the butt-jointed hollow shaft and the vertical plane perpendicular to the centerline of the butt-jointed hollow shaft.

[0037] Beneficial effects: Compared with the existing washing machine that squeezes from top to bottom, the technical solution of the present invention has the following advantages: 1. It can use the kinetic energy of the backflowing washing water to wash the clothes from bottom to top, which not only saves electricity and washing time, but also can wash the clothes that are squeezed tightly into a loose state, so that the clothes and washing water are evenly mixed, and the effect and efficiency of squeezing washing are improved. 2. It can discharge the air in the squeezing pipeline and the squeezing space to improve the efficiency of squeezing washing. 3. The sealing of the butt pipe and the butt hollow shaft is more strict to prevent the leakage of washing water, so that the performance of the washing machine is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a front view of a washing machine that is squeezed from top to bottom;

[0039] Figure 2 yes Figure 1 A magnified view of the upper main structure;

[0040] Figure 3 yes Figure 1 Enlarged view of the main structure of the lower part;

[0041] Figure 4 yes Figure 1 An enlarged view of the connection between the dehydration shaft and the connecting pipe;

[0042] Figure 5 yes Figure 1 A top view of the large hanging board in the figure;

[0043] Figure 6 yes Figure 1 Left view of the large hanging board in;

[0044] Figure 7 yes Figure 1 An enlarged top view of the filter in FIG.

[0045] Figure 8 It is a second water circuit structure diagram of a washing machine that squeezes from top to bottom;

[0046] Fig. 9 It is a third water circuit structure diagram of a washing machine that squeezes from top to bottom;

[0047] Fig.10 It is a fourth water circuit structure diagram of a washing machine that squeezes from top to bottom;

[0048] Fig.11 yes Figure 8 The washing water reflux state diagram of the water channel structure shown;

[0049] Fig.12 yes Fig. 9 The washing water reflux state diagram of the water channel structure shown;

[0050] Fig.13 It is a schematic diagram of a four-way structure.

[0051] The markings in the figure are: 1. rotating wing; 2. butt pipe; 3. sealing ring; 4. hollow shaft; 5. door panel; 6. exhaust solenoid valve; 7. extruded cloth; 8. butt piece; 9. clamp; 10. frame; 11. sealing gasket; 12. door shaft; 13. fixed wing; 14. limit block; 15. water pipe joint; 16. water pipe; 17. pipe protection rack; 18. large hanging plate; 19. box; 20. two-way water pump; 21. coupling; 22. washing motor; 23. casing; 24. extrusion convex body; 25. barrel ring; 26. circular ring sealing gasket; 27. balance ring; 28. water side wall; 29. ​​washing side wall; 30. water hole; 31. washing bottom plate; 32. water bottom plate; 33. small hanging plate; 34 , dehydration motor; 35, belt; 36, connecting pipe; 37, screw; 38, seal; 39, dehydration shaft; 40, filter screen; 41, thrust bearing; 42, bearing box; 43, spring washer; 44, positioning ring; 45, positioning pin; 46, pulley; 47, three-way D; 48, solenoid valve B; 49, solenoid valve D; 50, solenoid valve C; 51, three-way C; 52, three-way B; 53, one-way water pump; 54, solenoid valve A; 55, three-way A; 56, three-way E; 57, drainage solenoid valve; 58, water bucket water pipe joint; 59, four-way A; 60, solenoid valve E; 61, three-position three-way water inlet solenoid valve; 62, four-way B; 4001, steel ring; 4002, steel wire. DETAILED DESCRIPTION

[0052] Combine the following Figures 1 to 13 , the present invention is further described:

[0053] Figures 1 to 7 A washing machine that performs extrusion from top to bottom is provided with a housing, a door, a surrounding frame, a washing tub, a water tub, a dehydration shaft, a dehydration motor, a washing motor, a water pump and a positioning device for the dehydration shaft, wherein the door is mounted on the housing, and a locking device for the door is provided on the door and the surrounding frame; a docking piece is provided on the bottom surface of the door, the docking piece has a side wall and an opening at the bottom, an axial hole is provided in the middle of the side wall of the docking piece, a hollow shaft is installed in the axial hole, and a flange is provided at the outer end of the hollow shaft; an extrusion cloth is installed at the bottom of the docking piece and the extrusion cloth closes the opening at the bottom of the docking piece; the door, the docking piece and the extrusion cloth can form an extrusion space, or the docking piece and the extrusion cloth can form an extrusion space, and the extrusion space can only be connected to the outside through the hollow shaft;

[0054] The washing tub comprises a washing side wall and a washing bottom plate; the washing side wall and the washing bottom plate are provided with a plurality of water holes penetrating the inner and outer spaces of the washing tub, and the middle portion of the washing bottom plate is provided with an axial hole;

[0055] The water storage tub comprises a water storage side wall and a water storage bottom plate; a shaft hole is provided in the middle of the water storage bottom plate;

[0056] The upper part of the dehydration shaft is installed in the shaft hole of the washing bottom plate, the middle part of the dehydration shaft is installed in the shaft hole of the water-holding bottom plate, and a sealing member is provided between the dehydration shaft and the shaft hole of the water-holding bottom plate; the positioning device is connected with the water-holding bottom plate and the dehydration shaft; the positioning device includes a thrust bearing, a bearing box, a spring washer, a screw, a positioning ring and a positioning pin to determine the axial position of the dehydration shaft;

[0057] The washing motor and the water pump are installed on the outer surface of the water tub, and the washing motor establishes a transmission relationship with the water pump through a transmission device; the dehydration motor is connected to the water tub, and the dehydration motor establishes a transmission relationship with the dehydration shaft through the transmission device;

[0058] The feature is that: the dehydration shaft has through holes passing through both ends thereof, and a filter screen is arranged, and the filter screen is installed on the top surface of the washing bottom plate and can cover the through holes of the dehydration shaft;

[0059] An exhaust solenoid valve is provided on the upper part of the docking piece;

[0060] The angle between the end face of the butt-joint tube and the plane perpendicular to the center line of the butt-joint hollow shaft is 25°; the angle between the end face of the flange of the butt-joint hollow shaft and the plane perpendicular to the center line of the butt-joint hollow shaft is 25°; a sealing ring is provided between the end face of the butt-joint tube and the end face of the flange of the butt-joint hollow shaft;

[0061] The water pump is a two-way water pump, and the suction and discharge pipe A of the two-way water pump is connected to the outer end of the hollow shaft through a water pipe, a water pipe joint and a butt pipe, and the suction and discharge pipe A of the two-way water pump is communicated with the through hole of the hollow shaft; the suction and discharge pipe B of the two-way water pump is connected to the lower part of the dehydration shaft through a connecting pipe and is communicated with the through hole of the dehydration shaft; a sealing member is provided between the connecting pipe and the dehydration shaft, and the dehydration shaft can drive the washing barrel to rotate; the two-way water pump can suck washing water from the washing barrel and transport it to the squeezing space, the squeezing cloth can move under the drive of the washing water transported by the two-way water pump, and the squeezing cloth can squeeze the mixture of clothes and water in the washing barrel; the washing water entering the squeezing space can flow back to the washing barrel under the action of the two-way water pump and flush the clothes in the washing barrel to complete a washing cycle; and the device can complete multiple washing cycles.

[0062] The large hanging plate is composed of an arc plate and a flat plate. The arc plate is connected to the water side wall of the water tank, and the washing motor and the two-way water pump are installed on the flat plate. The small hanging plate is L-shaped and installed on the bottom surface of the water bottom plate for installing the dehydration motor. The filter is composed of a circular steel ring and multiple steel wires. Since the through hole diameter of the dehydration shaft can generally reach 30-50mm, a filter needs to be set to prevent small clothes from entering the through hole of the dehydration shaft.

[0063] After the washing machine is finalized, the lift and flow of the water pump have been determined, and the air capacity in the extrusion pipeline and the extrusion space has also been determined. Then, the exhaust solenoid valve is opened while the water pump is started to detect the time to exhaust the air in the extrusion pipeline and the extrusion space, and then this parameter is input into the program controller to control the operating time of the exhaust solenoid valve. In addition, the top surface of the extrusion space is higher than any point in the extrusion pipeline, so even if a small amount of air is not exhausted, it will only stay in the upper part of the extrusion space and will not affect the extrusion washing work.

[0064] Figure 8 and Fig.11 The first water circuit structure diagram of the washing machine using a one-way water pump is shown in FIG. Figure 1 , is a water circuit structure using a two-way water pump. The discharge pipe of the one-way water pump is connected and communicated with the starting point of the connecting pipeline and the starting point of the pipeline flowing into the dehydration shaft through a tee A, and the opening and closing of the pipeline flowing into the dehydration shaft is controlled by a solenoid valve A arranged on the pipeline; the suction pipe of the one-way water pump is connected and communicated with the end point of the pipeline flowing out of the dehydration shaft and the end point of the pipeline flowing out of the extrusion water shaft through a tee B, and the opening and closing of the pipeline flowing out of the dehydration shaft is controlled by a solenoid valve C arranged on the pipeline, and the opening and closing of the extrusion water outflow pipeline is controlled by a solenoid valve D arranged on the pipeline; the end point of the extrusion water inflow pipeline is connected and communicated with the starting point of the extrusion water outflow pipeline and the starting point of the extrusion water main pipe through a tee D, and the extrusion water The end point of the main water pipe is then connected to the outer end of the hollow shaft through a butt pipe and communicated with the through hole of the hollow shaft; the end point of the pipeline flowing into the dehydration shaft is connected and communicated with the starting point of the pipeline flowing out of the dehydration shaft and the starting point of the water main pipe of the washing tub through a tee C, and the end point of the water main pipe of the washing tub is then connected and communicated with the dehydration shaft; the end point of the connecting water circuit is connected and communicated with the starting point of the squeeze water inflow pipeline and the starting point of the drainage pipeline through a tee E; the opening and closing of the squeeze water inflow pipeline is controlled by the solenoid valve B arranged on the pipeline, and a drainage solenoid valve is arranged on the drainage pipeline, and the solenoid valve A, solenoid valve B, solenoid valve C, solenoid valve D and the drainage solenoid valve are all two-position two-way solenoid valves.

[0065] Figure 8 The state in is that the one-way water pump sucks water from the washing tub and transports it to the squeezing space. At this time, solenoid valve B and solenoid valve C are open, and solenoid valve D, solenoid valve A and drain solenoid valve are closed. Fig.11 The state in is that the one-way water pump sucks water from the extrusion space and transports it to the washing tub. At this time, solenoid valve B, solenoid valve C and drain solenoid valve are closed, and solenoid valve D and solenoid valve A are open.

[0066] Fig. 9 and Fig.12 Waterway structure and Figure 8 and Fig.11 The difference of the water circuit structure shown is: a water pipe joint for a water bucket is arranged on the water storing side wall or the water storing bottom plate, and the water pipe joint for the water bucket can conduct the space inside and outside the water bucket; the tee C is replaced with a four-way A, and the starting point of the main water pipe of the washing tub is connected and communicated with the first pipe opening of the four-way; the water pipe joint for the water bucket is connected and communicated with one pipe opening of the solenoid valve E through a water pipe or a pipeline connecting device, and the other pipe opening of the solenoid valve E is connected and communicated with the second pipe opening of the four-way through a water pipe or a pipeline connecting device; the end point of the pipeline flowing into the dehydration shaft is connected and communicated with the third pipe opening of the four-way; the starting point of the pipeline flowing out of the dehydration shaft is connected and communicated with the fourth pipe opening of the four-way; the solenoid valve E is a two-position two-way solenoid valve.

[0067] Fig.10 The waterway structure shown is Fig. 9 and Fig.12 The difference in the water channel structure is that the tee A is replaced with a four-way B, and the three pipelines originally connected and communicated with the tee A are respectively connected and communicated with one pipe opening of the four-way B; a three-position three-way water inlet solenoid valve is provided, and one pipe opening of the three-position three-way water inlet solenoid valve is connected and communicated with one pipe opening of the four-way B through a water pipe or a pipeline connecting device.

[0068] Fig.13 It is a structural diagram of a four-way pipe, which has four pipe openings, and the four pipe openings are interconnected.

Claims

1. A washing machine that squeezes from top to bottom, comprising a housing, a door, a frame, a washing tub, a water tub, a dehydration shaft, a dehydration motor, a washing motor, a water pump and a positioning device for the dehydration shaft, wherein the door is mounted on the housing, and a locking device for the door is mounted on the door and the frame; a docking piece is mounted on the bottom surface of the door, wherein the docking piece has a side wall and an opening at the bottom, an axial hole is mounted in the middle of the side wall of the docking piece, a hollow shaft is mounted in the axial hole, and a flange is mounted at the outer end of the hollow shaft; an extrusion cloth is mounted at the bottom of the docking piece and the extrusion cloth closes the opening at the bottom of the docking piece; the door, the docking piece and the extrusion cloth can form an extrusion space, or the docking piece and the extrusion cloth can form an extrusion space, and the extrusion space can only be connected to the outside through the hollow shaft; The washing tub comprises a washing side wall and a washing bottom plate; the washing side wall and the washing bottom plate are provided with a plurality of water holes penetrating the inner and outer spaces of the washing tub, and the middle portion of the washing bottom plate is provided with an axial hole; The water storage tub comprises a water storage side wall and a water storage bottom plate; a shaft hole is provided in the middle of the water storage bottom plate; The upper part of the dehydration shaft is installed in the shaft hole of the washing bottom plate, the middle part of the dehydration shaft is installed in the shaft hole of the water holding bottom plate, and a sealing member is provided between the dehydration shaft and the shaft hole of the water holding bottom plate; the positioning device is connected with the water holding bottom plate and the dehydration shaft, and the positioning device can determine the axial position of the dehydration shaft; The washing motor and the water pump are installed on the outer surface of the water tub, and the washing motor establishes a transmission relationship with the water pump through a transmission device; the dehydration motor is connected to the water tub, and the dehydration motor establishes a transmission relationship with the dehydration shaft through the transmission device; Its characteristics are: The dehydration shaft has through holes passing through both ends thereof, and a filter screen is provided, and the filter screen is installed on the top surface of the washing bottom plate and can cover the through holes of the dehydration shaft; An exhaust solenoid valve is provided on the upper part of the docking piece, and the exhaust solenoid valve is a two-position two-way solenoid valve; The suction and discharge pipe A of the water pump is connected to the outer end of the hollow shaft through a pipeline connection device, and the suction and discharge pipe A of the water pump is communicated with the through hole of the hollow shaft; the suction and discharge pipe B of the water pump is connected to the lower part of the dehydration shaft through a pipeline connection device and is communicated with the through hole of the dehydration shaft; a sealing member is provided between the pipeline connection device and the dehydration shaft, and the dehydration shaft can drive the washing tub to rotate; the water pump can suck washing water from the washing tub and transport it to the squeezing space, and the squeezing cloth can move under the drive of the washing water transported by the water pump, and the squeezing cloth can squeeze the mixture of clothes and water in the washing tub; The washing water entering the squeezing space can flow back to the washing tub under the action of the water pump or can flow back to the washing tub to flush the clothes under the joint action of the water pump and the control device to complete a washing cycle; and the device can complete multiple washing cycles.

2. A washing machine for squeezing from top to bottom according to claim 1, characterized in that: The water pump is a bidirectional water pump, which can both suck washing water from the washing tub and transport it to the squeezing space to drive the squeezing cloth to move, and the squeezing cloth can squeeze the mixture of clothes and water in the washing tub, and can also suck out the washing water in the squeezing space and transport it to the washing tub to rinse the clothes.

3. A washing machine for squeezing from top to bottom according to claim 1, characterized in that: The water pump is a one-way water pump; the discharge pipe of the one-way water pump is connected and communicated with the starting point of the squeeze water inflow pipeline and the starting point of the inflow dehydration shaft pipeline through a tee A, the opening and closing of the squeeze water inflow pipeline is controlled by the solenoid valve B arranged on the pipeline, and the opening and closing of the inflow dehydration shaft pipeline is controlled by the solenoid valve A arranged on the pipeline; the suction pipe of the one-way water pump is connected and communicated with the end point of the outflow dehydration shaft pipeline and the end point of the squeeze water outflow pipeline through a tee B, the opening and closing of the outflow dehydration shaft pipeline is controlled by the solenoid valve C arranged on the pipeline, and the opening and closing of the squeeze water outflow pipeline is controlled by the solenoid valve C arranged on the pipeline. The closing is controlled by the solenoid valve D arranged on the pipeline; the end point of the extrusion water inlet pipeline is connected and communicated with the starting point of the extrusion water outflow pipeline and the starting point of the extrusion water main pipe through the tee D, and the end point of the extrusion water main pipe is connected to the outer end of the hollow shaft through the butt pipe and communicated with the through hole of the hollow shaft; the end point of the pipeline flowing into the dehydration shaft is connected and communicated with the starting point of the pipeline flowing out of the dehydration shaft and the starting point of the washing tub water main pipe through the tee C, and the end point of the washing tub water main pipe is connected and communicated with the dehydration shaft; the solenoid valve A, solenoid valve B, solenoid valve C, and solenoid valve D are all two-position two-way solenoid valves.

4. A washing machine for squeezing from top to bottom according to claim 3, characterized in that: A connecting pipeline and a tee E are provided; the end point of the connecting pipeline is connected and communicated with the starting point of the extrusion water inflow pipeline and the starting point of the drainage pipeline through the tee E; the starting point of the connecting pipeline is connected and communicated with the discharge pipe of the one-way water pump and the starting point of the inflow dehydration shaft pipeline through the tee A, and a drainage solenoid valve is provided on the drainage pipeline, and the drainage solenoid valve is a two-position two-way solenoid valve.

5. A washing machine for squeezing from top to bottom according to claim 4, characterized in that: A water pipe joint for a water bucket is arranged on the water storing side wall or the water storing bottom plate, and the water pipe joint for the water bucket can conduct the space inside and outside the water bucket; the three-way C is replaced with a four-way A, and the starting point of the main water pipe of the washing bucket is connected and communicated with the first pipe opening of the four-way; the water pipe joint for the water bucket is connected and communicated with one pipe opening of the electromagnetic valve E through a water pipe or a pipeline connecting device, and the other pipe opening of the electromagnetic valve E is connected and communicated with the second pipe opening of the four-way through a water pipe or a pipeline connecting device; the end point of the pipeline flowing into the dehydration shaft is connected and communicated with the third pipe opening of the four-way; the starting point of the pipeline flowing out of the dehydration shaft is connected and communicated with the fourth pipe opening of the four-way; the electromagnetic valve E is a two-position two-way electromagnetic valve.

6. A washing machine for squeezing from top to bottom according to claim 5, characterized in that: Replace the tee A with a four-way B, and the three pipelines originally connected and communicated with the tee A are each connected and communicated with one pipe opening of the four-way B; set a three-position three-way water inlet solenoid valve, and one pipe opening of the three-position three-way water inlet solenoid valve is connected and communicated with one pipe opening of the four-way B through a water pipe or a pipeline connecting device.

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