A water distribution pump and washing machine

Abstract

The present invention provides a water-dividing pump and a washing machine. A rotary two-way valve is provided at the outlet of the water-dividing pump, and the rotary two-way valve comprises: a housing, which is in the shape of a long cylinder; a valve core, which is rotatably arranged in the housing along the axial direction of the housing long cylinder; a driving assembly, which is arranged on one side of the valve core and drives the valve core to rotate in the housing; a housing liquid inlet is provided on the upper surface of the housing, and two housing liquid outlets are provided on the lower surface; two valve core liquid inlets for communicating with the housing liquid inlet and two valve core liquid outlets for communicating with the two housing liquid outlets are formed on the outer circumference of the valve core; the two valve core liquid inlets correspond to the two valve core liquid outlets one by one and form independent flow channels; when the valve core is driven by the driving assembly to rotate to different preset angles, the inlet and outlet of a corresponding flow channel in the valve core correspond to and communicate with the housing liquid inlet and housing liquid outlet according to preset rules.

Description

Technical Field

[0001] The invention relates to a pump structure, in particular to a water-dividing pump and a washing machine. Background Art

[0002] Washing machines have become an important part of daily electrical appliances. Now more and more users are pursuing healthier washing methods, and water circulation is one of them. However, at present, washing machines generally use separate circulating water pumps for water circulation, which may not be enough space and increase design costs. Summary of the invention

[0003] In view of this, the present invention provides a water diversion pump and a washing machine to solve the above problems, specifically:

[0004] A first aspect of the present invention provides a water pump, wherein a rotary two-way valve is provided at the outlet of the water pump, and the rotary two-way valve comprises:

[0005] The shell is in the shape of a long tube;

[0006] A valve core is rotatably arranged in the housing along the axial direction of the housing long tube;

[0007] A driving assembly, arranged at one side of the valve core to drive the valve core to rotate in the housing;

[0008] The upper surface of the shell is provided with a shell liquid inlet, and the lower surface is provided with two shell liquid outlets;

[0009] The outer peripheral surface of the valve core is formed with two valve core liquid inlets for communicating with the shell liquid inlet and two valve core liquid outlets for communicating with the two shell liquid outlets; the two valve core liquid inlets correspond to the two valve core liquid outlets one by one and form independent flow channels respectively;

[0010] When the valve core is driven by the driving assembly to rotate to different preset angles, an inlet and an outlet of a corresponding flow channel in the valve core correspond to and are connected with the liquid inlet and the liquid outlet of the shell according to a preset rule.

[0011] Further optionally, the two shell liquid outlets are respectively a first shell liquid outlet and a second shell liquid outlet;

[0012] The flow channel in the valve core includes a first flow channel and a second flow channel, wherein the first flow channel and the second flow channel are not on the same plane, wherein:

[0013] The first flow channel is formed with a first through hole A and a first through hole B on the circumferential surface of the valve core;

[0014] The second flow channel is formed with a second through hole A and a second through hole B on the circumferential surface of the valve core;

[0015] The valve core forms a gap between the first through hole A and the position corresponding to the liquid inlet of the shell. When the first through hole A is connected to the liquid inlet of the shell through the gap, the first through hole B is connected to the liquid outlet of the first shell.

[0016] When the second through hole A is communicated with the liquid inlet of the shell, the second through hole B is communicated with the liquid outlet of the second shell.

[0017] Further optionally, the first flow channel and the second flow channel are both opened along the radial direction of the valve core.

[0018] Further optionally, a portion of the notch is communicated with a portion of the liquid inlet of the shell.

[0019] Further optionally, the rotary two-way valve further includes: a first sealing ring, a second sealing ring and a third sealing ring,

[0020] The first sealing ring is sleeved on the valve core and located at an end away from the driving assembly; the second sealing ring is sleeved on the valve core and located between the first flow channel and the second flow channel; the third sealing ring is sleeved on the valve core and located at an end close to the driving assembly.

[0021] Further optionally, a sealing ring support bridge is provided at the notch to support and limit the second sealing ring.

[0022] Further optionally, the drive assembly includes a motor for driving the valve core to rotate to a preset angle in the housing to form different passages.

[0023] Further optionally, a sealing gasket is provided between the motor and the valve core.

[0024] Further optionally, a cylinder bottom is provided at one end of the housing away from the driving assembly.

[0025] A positioning support groove is provided on the inner side surface of the cylinder bottom, and a positioning column is provided at the axis center of one end of the valve core close to the cylinder bottom, and the positioning column is assembled in the positioning support groove.

[0026] Further optionally, the opening direction of the first flow channel is 90° to the opening direction of the second flow channel.

[0027] Further optionally, the water pump further includes a pump housing, a drainage motor, an impeller, a filter screen and a sealing cover.

[0028] The filter screen is arranged inside the pump housing; the driving end of the drainage motor is connected to the impeller, the impeller extends into the interior of the pump housing, and the drainage motor is fixedly connected to one end of the pump housing; the sealing cover is installed at the other end of the pump housing.

[0029] A second aspect of the present invention provides a washing machine, comprising a water system, wherein the water system adopts any one of the water pumps described above.

[0030] Further optionally, the water system further includes: a water inlet pipeline, a washing tub, a front section water return pipeline, a rear section water return pipeline and a drainage pipeline.

[0031] The outlet of the water inlet pipe leads to the upper part of the washing tub, the lower part of the washing tub is connected to the inlet of the front section return pipe, the outlet of the front section return pipe is connected to the main passage of the water pump, one shell liquid outlet is connected to the inlet of the drainage pipe, the other shell liquid outlet is connected to the inlet of the rear section return pipe, the outlet of the rear section return pipe is connected to the front side of the outlet of the water inlet pipe, and a one-way check valve is provided on the rear end return pipe.

[0032] Beneficial effects: The present invention provides a multifunctional water pump integrated structural component, which is mainly composed of a drainage motor, an impeller, a two-way switching valve, a pump body, a filter, a sealing cover, fixing screws, etc., and has the dual functions of drainage and circulation cleaning. When the electric two-way valve is in the power-off state, the water pump pipeline is in the drainage state; when the electric two-way valve is in the power-on state, the water pump pipeline is in the circulation cleaning state. The pump body and the electromagnetic two-way valve housing of the water pump integrated structural component are integrally formed by injection molding, which has high space utilization and reduces design costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail its exemplary embodiments with reference to the accompanying drawings. The accompanying drawings described below are only some embodiments of the present disclosure, and it is clear to a person skilled in the art that other accompanying drawings can be obtained from these accompanying drawings without creative work.

[0034] Figure 1 is an exploded view of a water pump according to an embodiment of the present invention;

[0035] Figure 2 It is a schematic diagram of the structure of a pump housing according to an embodiment of the present invention;

[0036] Figure 3 is an exploded view of a rotary two-way valve according to an embodiment of the present invention;

[0037] Figure 4 is a cross-sectional view of a rotary two-way valve according to an embodiment of the present invention after switching to the second housing liquid outlet;

[0038] Figure 5 is a cross-sectional view of a rotary two-way valve according to an embodiment of the present invention after switching to the first housing liquid outlet;

[0039] Figure 6 It is a schematic diagram of a washing machine water system according to an embodiment of the present invention.

[0040] In the figure: 1, shell; 11, shell liquid inlet; 12, first shell liquid outlet; 13, second shell liquid outlet; 14, cylinder bottom; 15, positioning support groove; 2, valve core; 201, first flow channel; 202, second flow channel; 203, first through hole A; 204, second through hole B; 205, second through hole A; 206, second through hole B; 207, notch; 208, positioning column; 209, sealing ring support bridge; 3, drive Components; 4. Sealing ring; 5. Sealing gasket; 6. Pump structure; 61. Pump body shell; 62. Drainage motor; 63. Impeller; 64. Filter; 65. Sealing cover; 66. Screws; 67. Pump water inlet; 68. Pump water outlet 71. Water inlet pipe; 72. Washing bucket; 73. Front section return water pipe; 74. Rear section return water pipe; 75. Drainage pipe; 76. One-way check valve; 77. Spray structure; 8. Rotary two-way valve. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two, but does not exclude the inclusion of at least one.

[0043] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0044] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0045] People have higher and higher requirements for washing clothes. To meet the actual needs, the water circulation system in the existing washing machine is becoming more and more complicated, resulting in the water system taking up more and more space and more and more pipes. In order to simplify the water system and reduce the cost, it is necessary to improve the water circulation system of the washing machine.

[0046] The present invention improves the structure of the water pump and provides a rotary two-way valve integrated with the pump at the outlet of the water pump, which can realize water path switching while meeting the water supply requirement. Combined with the improved water pump, the system optimization of the washing machine using the water pump is realized.

[0047] To further illustrate the present invention, the following examples are provided.

[0048] Example 1

[0049] like Figure 1-5 As shown, in this embodiment, a water pump is provided, and a rotary two-way valve is provided at the outlet of the water pump, wherein the rotary two-way valve comprises: a housing 1, a valve core 2 and a drive assembly 3. The housing is in the shape of a long cylinder; the valve core is rotatably arranged in the housing along the axial direction of the long cylinder of the housing; the drive assembly is arranged on one side of the valve core and can drive the valve core to rotate in the housing.

[0050] In order to achieve the coordinated communication between the housing and the valve core, in an optional implementation, the rotary two-way valve is designed as follows: a housing liquid inlet 11 is provided on the upper peripheral surface of the housing, and two housing liquid outlets are provided on the lower peripheral surface (the upper peripheral surface and the lower peripheral surface are relatively arranged, not in a narrow sense of up and down relationship, only for the convenience of explaining the relative relationship between the housing liquid inlet and the housing liquid outlet, that is, the liquid inlet and the liquid outlet are arranged on the peripheral surfaces along different radial directions); correspondingly, two valve core liquid inlets for communicating with the housing liquid inlet are formed on the outer peripheral surface of the valve core, and two valve core liquid outlets for communicating with the two housing liquid outlets are formed. The two valve core liquid inlets correspond to the two valve core liquid outlets one by one and form independent flow channels. The flow channels are not connected to each other, and only the corresponding valve core liquid inlets and valve core liquid outlets are connected.

[0051] When the valve core is driven by the driving assembly to rotate to different preset angles, the inlet and outlet of a corresponding flow channel in the valve core are corresponding to and connected with the liquid inlet and liquid outlet of the shell according to a preset rule. At this time, the preset rule means that at any preset angle, an independent flow channel will be provided on the valve core, and the inlet of the flow channel is connected with the inlet of the shell, and the outlet of the flow channel is connected with the outlet of the shell. This connection mode realizes independent connection. At this time, if one flow channel is rotated to be connected, the other flow channel will not be connected with the inlet of the shell.

[0052] In some optional implementations, the two shell liquid outlets are respectively the first shell liquid outlet 12 and the second shell liquid outlet 13, and the flow channel in the corresponding valve core includes a first flow channel 201 and a second flow channel 202, and the first flow channel and the second flow channel are not on the same plane. The first flow channel is formed with a first through hole A203 and a first through hole B204 on the circumferential surface of the valve core; the second flow channel is formed with a second through hole A205 and a second through hole B206 on the circumferential surface of the valve core; the valve core forms a notch 207 between the first through hole A and the position corresponding to the shell liquid inlet. When the first through hole A is connected to the shell liquid inlet through the notch, the first through hole B is connected to the first shell liquid outlet; when the second through hole A is connected to the shell liquid inlet, the second through hole B is connected to the second shell liquid outlet. Preferably, the first flow channel and the second flow channel are both opened along the radial direction of the valve core. At this time, the radial direction corresponding to each opened flow channel may be different. Arranging the flow channel in the radial direction can make the valve core structure more regular, avoid uneven thickness on both sides of the valve core flow channel due to the offset flow channel, and prevent damage due to wear after long-term use. This structure increases the service life of the valve core. Preferably, the opening direction of the first flow channel is 90° to the opening direction of the second flow channel.

[0053] Since in some practical needs, the water pump is required to have a larger head, a part of the notch is connected to a part of the shell liquid inlet, so that the cross-sectional area of ​​the fluid will become smaller after flowing into the notch from the shell liquid inlet, thereby achieving a throttling effect.

[0054] In order to enhance the sealing performance between the flow channels of the valve core, a sealing ring is also provided on the valve core of the multi-way valve. Specifically, the sealing ring 4 also includes: a first sealing ring, a second sealing ring and a third sealing ring. The first sealing ring is sleeved on the valve core and is located at an end away from the drive assembly; the second sealing ring is sleeved on the valve core and is located between the first flow channel and the second flow channel; the third sealing ring is sleeved on the valve core and is located at an end close to the drive assembly.

[0055] Regarding the materials of the valve core, sealing ring and housing, the valve core can be made of copper, the housing can be made of stainless steel or copper, and the sealing ring can be made of silicone. Since the sealing ring is mostly made of softer materials, such as rubber, silicone and the like, it has a certain degree of deformation. By forming a sealing ring support bridge on the notch, the second sealing ring can be supported, thereby avoiding the poor sealing effect caused by the deformation of the sealing ring due to the force, which leads to the inability to seal the gap between the valve core and the housing. In this case, the sealing ring support bridge 209 can be designed to be integrated with the valve core.

[0056] In order to improve automation and reduce manpower to achieve automatic control, the driving assembly includes a motor that can drive the valve core to rotate to a preset angle in the housing to form different passages. A sealing gasket is provided between the motor and the valve core to prevent water from overflowing the three-way valve and even burning the motor.

[0057] Based on the fact that the end of the housing away from the drive assembly is provided with a cylinder bottom, in some optional implementations, a positioning support groove 15 is provided on the inner side of the cylinder bottom, and a positioning column 208 is provided at the axis of the end of the valve core close to the cylinder bottom, and the positioning column is assembled in the positioning support groove. Through the cooperation of the positioning support groove and the positioning column, the valve core can be limited and supported, and the rotation of the valve core in the housing is facilitated. Furthermore, rolling parts such as bearings can be arranged in the positioning support groove to reduce friction between components.

[0058] In some optional implementations, the water pump further includes a pump housing 61, a drainage motor 62, an impeller 63, a filter screen 64, a sealing cover 65, and screws 66. The filter screen is arranged inside the pump housing; the driving end of the drainage motor is connected to the impeller, the impeller extends into the interior of the pump housing, the drainage motor is fixedly connected to one end of the pump housing; the sealing cover is installed at the other end of the pump housing. The pump 6 is provided with a pump water inlet 67 and a pump water outlet 68, and the pump water outlet 68 is connected to the housing liquid inlet 11 of the rotary two-way valve 8, and can be designed as an integrated structure.

[0059] Example 2

[0060] like Figure 1-6 As shown, in this embodiment, a washing machine is provided. The washing machine includes a water system, in which any of the above-mentioned water pumps is used to supply water and realize the switching of water circuits.

[0061] In some optional implementations, the water system further includes: an inlet pipe 71, a washing tub 72, a front section water return pipe 73, a rear section water return pipe 74 and a drainage pipe 75. The outlet of the inlet pipe leads to the upper part of the washing tub, the lower part of the washing tub is connected to the inlet of the front section water return pipe, the outlet of the front section water return pipe is connected to the main pipe opening of the water pump, the first branch pipe opening of the water pump is connected to the inlet of the drainage pipe, the second branch pipe opening of the water pump is connected to the inlet of the rear section water return pipe, and the outlet of the rear section water return pipe is connected to the front side of the outlet of the inlet pipe.

[0062] A one-way check valve 76 is also provided on the rear return pipe. To pressurize the drainage pipe, the drainage pipe can also be bent, that is, there is a drainage pipe section that arches upward after the rotary two-way valve. Furthermore, the second shell liquid outlet is connected to the rear return pipe; the first shell liquid outlet is connected to the drainage pipe. This method utilizes the throttling function of the notch and the first shell liquid outlet.

[0063] The exemplary embodiments of the present disclosure are specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structures, configurations or implementations described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent configurations included in the spirit and scope of the appended claims.

Claims

1. A washing machine, comprising a water system, wherein the water system is provided with a water pump, characterized in that: A rotary two-way valve is provided at the outlet of the water pump, and the rotary two-way valve comprises: The shell is in the shape of a long tube; A valve core is rotatably arranged in the housing along the axial direction of the housing long tube; A driving assembly, arranged at one side of the valve core to drive the valve core to rotate in the housing; The upper surface of the shell is provided with a shell liquid inlet, and the lower surface is provided with two shell liquid outlets; The outer peripheral surface of the valve core is formed with two valve core liquid inlets for communicating with the shell liquid inlet and two valve core liquid outlets for communicating with the two shell liquid outlets; the two valve core liquid inlets correspond to the two valve core liquid outlets one by one and form independent flow channels respectively; When the valve core is driven by the driving assembly to rotate to different preset angles, an inlet and an outlet of a corresponding flow channel in the valve core correspond to and are connected with the liquid inlet and the liquid outlet of the shell according to a preset rule; The two shell liquid outlets are respectively a first shell liquid outlet and a second shell liquid outlet; The flow channel in the valve core includes a first flow channel and a second flow channel, wherein the first flow channel and the second flow channel are not on the same plane, wherein: The first flow channel is formed with a first through hole A and a first through hole B on the circumferential surface of the valve core; The second flow channel is formed with a second through hole A and a second through hole B on the circumferential surface of the valve core; The valve core forms a gap between the first through hole A and the position corresponding to the liquid inlet of the shell. When the first through hole A is connected to the liquid inlet of the shell through the gap, the first through hole B is connected to the liquid outlet of the first shell. When the second through hole A is connected to the liquid inlet of the shell, the second through hole B is connected to the liquid outlet of the second shell; A portion of the notch is communicated with a portion of the liquid inlet of the shell, so that the cross-sectional area of ​​the fluid becomes smaller after flowing from the liquid inlet of the shell into the notch.

2. The washing machine according to claim 1, characterized in that: The first flow channel and the second flow channel are both opened along the radial direction of the valve core.

3. The washing machine according to claim 1, characterized in that: The rotary two-way valve further comprises: a first sealing ring, a second sealing ring and a third sealing ring. The first sealing ring is sleeved on the valve core and located at an end away from the driving assembly; the second sealing ring is sleeved on the valve core and located between the first flow channel and the second flow channel; the third sealing ring is sleeved on the valve core and located at an end close to the driving assembly.

4. The washing machine according to claim 3, characterized in that: A sealing ring support bridge is provided at the notch, for supporting and limiting the second sealing ring.

5. The washing machine according to claim 4, characterized in that: The driving assembly includes a motor for driving the valve core to rotate to a preset angle in the housing to form different passages.

6. The washing machine according to claim 5, characterized in that: A sealing gasket is provided between the motor and the valve core.

7. The washing machine according to claim 6, characterized in that: A cylinder bottom is provided at one end of the housing away from the driving assembly. A positioning support groove is provided on the inner side surface of the cylinder bottom, and a positioning column is provided at the axis center of one end of the valve core close to the cylinder bottom, and the positioning column is assembled in the positioning support groove.

8. The washing machine according to claim 7, characterized in that: The opening direction of the first flow channel and the opening direction of the second flow channel are 90 degrees.

9. The washing machine according to claim 1, characterized in that: The water system also includes: a water inlet pipeline, a washing tub, a front water return pipeline, a rear water return pipeline and a drainage pipeline. The outlet of the water inlet pipe leads to the upper part of the washing tub, the lower part of the washing tub is connected to the inlet of the front section return pipe, the outlet of the front section return pipe is connected to the main passage of the water pump, one shell liquid outlet is connected to the inlet of the drainage pipe, the other shell liquid outlet is connected to the inlet of the rear section return pipe, the outlet of the rear section return pipe is connected to the front side of the outlet of the water inlet pipe, and a one-way check valve is provided on the rear end return pipe.

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