Pumping system and washing equipment

Abstract

The pumping system comprises a pump body, a connector and an exhaust pipe, the pump body comprises a pump shell, the pump shell is provided with a pump cavity and a communicating hole, and the communicating hole penetrates through the shell wall of the pump shell and is communicated with the pump cavity; the connector is arranged on the peripheral side of the pump shell and is in butt joint with the communicating hole in a sealed mode. The exhaust pipe is connected with the connector in a sealed mode, and the exhaust pipe is used for exhausting gas in the pump cavity. According to the pumping system, the problem of air trapping of the pump body is solved, and the drainage stability in use is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of washing, in particular to a pumping system and a washing device. Background Art

[0002] A washing machine is a common household appliance. During use, the washing machine needs to use a water pump to drain water. However, in actual use, there is a problem of air trapping in the water pump, which causes the water pump to be unable to drain water normally. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the utility model proposes a pumping system, which solves the problem of air entrapment in the pump body and ensures drainage stability during use.

[0005] The embodiment of the utility model also provides a washing device including the above-mentioned pumping system.

[0006] The pumping system of the utility model embodiment comprises:

[0007] A pump body, the pump body comprising a pump shell, the pump shell being provided with a pump cavity and a communicating hole, the communicating hole penetrating through a shell wall of the pump shell and communicating with the pump cavity;

[0008] A joint, the joint being arranged on the outer peripheral side of the pump housing and sealingly connected to the communicating hole;

[0009] An exhaust pipe is sealed and connected to the joint and is used to exhaust the gas in the pump chamber.

[0010] In some embodiments, the ratio of the distance between the communicating hole and the top side of the pump housing to the height dimension of the pump housing in the up-down direction does not exceed one third.

[0011] In some embodiments, an outlet of the communicating hole is disposed on a top side of the pump housing, and the communicating hole extends in an up-down direction.

[0012] In some embodiments, the joint includes a large diameter section and a small diameter section, one end of the large diameter section is sealably connected to the pump casing, the small diameter section is connected to the other end of the large diameter section, the radial dimension of the small diameter section is smaller than the radial dimension of the large diameter section, and the small diameter section is used to be inserted into the exhaust pipe, and the step surface between the large diameter section and the small diameter section is used to stop against the end of the exhaust pipe.

[0013] In some embodiments, the large diameter section includes a first section and a second section, the first section is connected between the second section and the pump casing, the first section extends radially along the pump casing, the second section extends tangentially along the pump casing, the small diameter section is connected to the second section, and the extension directions of the small diameter section and the second section are consistent.

[0014] In some embodiments, the radial dimension of the free end of the small diameter segment gradually increases in a direction toward the large diameter segment.

[0015] In some embodiments, the joint is fixed to the pump housing by bonding with a sealant.

[0016] The washing device of the embodiment of the utility model comprises a pumping system as described in any of the above embodiments.

[0017] In some embodiments, the washing device is a washing machine, which includes an outer drum and a water inlet box, and the outlet end of the exhaust pipe is connected to at least one of the outer drum and the water inlet box.

[0018] In some embodiments, the washing device is a washing machine, a shoe washing machine or a dishwasher.

[0019] Beneficial effects: The pumping system and washing equipment of the embodiment of the utility model solve the problem of air entrapment in the pump body and ensure the drainage stability during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the assembly of the pump body and the joint of the embodiment of the utility model.

[0021] Figure 2 yes Figure 1 Schematic diagram of the middle connector.

[0022] Figure 3 It is a schematic diagram of the connection arrangement of the exhaust pipe of an embodiment of the utility model.

[0023] Reference numerals:

[0024] 1- pump body; 11- pump casing; 111- pump chamber; 12- motor; 2- connector; 21- large diameter section; 211- first section; 212- second section; 22- small diameter section; 3- exhaust pipe; 4- outer tube; 5- inner tube. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0026] The present invention is based on the inventor's discovery and understanding of the following facts and problems:

[0027] In the related art, in order to avoid the problem of air entrapment in the water pump, the impeller and motor solution are usually optimized and improved. For example, the size of the impeller is increased to increase the drainage and exhaust capacity. However, these methods can only achieve limited effects and do not fundamentally solve the problem of air entrapment in the water pump. The exhaust effect is not ideal.

[0028] like Figure 1 As shown, the pumping system of the embodiment of the utility model includes a pump body 1, a joint 2 and an exhaust pipe 3.

[0029] The pump body 1 includes a pump housing 11, which is provided with a pump cavity 111 and a communication hole, which penetrates the shell wall of the pump housing 11 and communicates with the pump cavity 111. Figure 1 As shown, the material of the pump housing 11 can be plastic, etc., and the pump housing 11 can be formed by injection molding. The pump housing 11 can be generally annular and cylindrical and can extend in the left and right directions. The inner cavity of the pump housing 11 forms a pump cavity 111, and the pump cavity 111 is used for water supply, etc. A communication hole is provided on the shell wall of the pump housing 11, and the communication hole can connect the pump cavity 111 with the external space around the pump housing 11.

[0030] The pump housing 11 may also be provided with a liquid inlet and a liquid discharge port, both of which are connected to the pump chamber 111 of the pump housing 11 , wherein the liquid inlet is used for allowing washing sewage to enter the pump chamber 111 , and the liquid discharge port is used for allowing washing sewage to discharge from the pump chamber 111 .

[0031] The pump body 1 may further include a motor 12, an impeller, etc., wherein the impeller may be assembled in the pump chamber 111, the motor 12 may be mounted at the left end of the pump housing 11, and the output shaft of the motor 12 may be connected to the impeller. When in use, the motor 12 may drive the impeller to rotate, thereby providing power for the washing sewage to flow into and out of the pump chamber 111.

[0032] The joint 2 is arranged on the outer peripheral side of the pump housing 11 and is sealed and connected to the connecting hole. Figure 1 As shown, the connector 2 can be integrally formed on the outer peripheral side of the pump housing 11 by injection molding, and the connector 2 can be a tubular structure, and the connector 2 is used to connect the port connected to the pump housing 11 with the connecting hole on the pump housing 11. In some other embodiments, the connector 2 can also be detachably connected to the pump housing 11, for example, the connector 2 can be installed at the connecting hole of the pump housing 11 by threaded assembly, clamping fixation, etc.

[0033] The exhaust pipe 3 is sealed and connected to the joint 2, and the exhaust pipe 3 is used to exhaust the gas in the pump chamber 111. Figure 1As shown, the exhaust pipe 3 can be a rubber hose, and the inner diameter of the exhaust pipe 3 can be slightly smaller than the outer diameter of the joint 2. During assembly, the joint 2 can be directly inserted into the exhaust pipe 3, and the joint 2 and the exhaust pipe 3 are interference-fitted, thereby ensuring the sealing of the joint.

[0034] When in use, the gas in the pump chamber 111 and the drain pipe (the bellows of the washing machine) connected to the pump chamber 111 can be discharged from the pump chamber 111 via the joint 2 and the exhaust pipe 3, so that the pump chamber 111 can be filled with water, which fundamentally solves the problem of air trapping in the pump chamber 111, avoids the situation where the pump body 1 cannot drain water normally due to air trapping, and ensures the stability of drainage of the pump body 1.

[0035] In some embodiments, the ratio of the distance between the communicating hole and the top side of the pump housing 11 to the height dimension of the pump housing 11 in the up-down direction does not exceed one third.

[0036] For example, Figure 1 As shown, the communication hole can be provided at the upper part of the pump housing 11, the distance between the communication hole and the top side of the pump housing 11 can be a distance L, the height dimension of the pump housing 11 in the vertical direction can be a dimension H, and the ratio of the distance L to the dimension H is less than one third. Figure 1 The dotted line in the figure indicates the lowest position where the connecting hole can be arranged.

[0037] Because the gas will gather at the upper part of the pump housing 11 under the action of gravity, arranging the connecting hole above the above-mentioned dotted line can fully ensure the exhaust effect, and also avoid the situation where washing sewage and the like enter the joint 2 and the exhaust pipe 3 and cause blockage, thereby ensuring the stability of the exhaust.

[0038] In some embodiments, the outlet of the communication hole is arranged at the top side of the pump housing 11, and the communication hole extends in the up-down direction. Specifically, the communication hole can be arranged at the top of the pump housing 11, the outlet of the communication hole can be located at the top side of the pump housing 11, and the inlet of the communication hole can be located directly below the outlet of the communication hole. Thus, the arrangement of the communication hole is convenient, and it is also conducive to ensuring the efficiency of exhaust. In addition, it is also convenient to discharge the collected liquid in the exhaust pipe 3 back into the pump chamber 111.

[0039] In some embodiments, Figure 2 As shown, the joint 2 includes a large diameter section 21 and a small diameter section 22, both of which can be in the shape of a circular tube, wherein one end of the large diameter section 21 is sealed and connected to the pump housing 11, and the small diameter section 22 is connected to the other end of the large diameter section 21, and the radial dimension of the small diameter section 22 is smaller than the radial dimension of the large diameter section 21, and the small diameter section 22 is used to be inserted into the exhaust pipe 3, and the step surface between the large diameter section 21 and the small diameter section 22 is used to stop against the end of the exhaust pipe 3. Thus, the sealed docking of the joint 2 and the exhaust pipe 3 is facilitated, and the convenience of operation is improved.

[0040] In some embodiments, Figure 2 As shown, the large diameter section 21 includes a first section 211 and a second section 212, the first section 211 is connected between the second section 212 and the pump housing 11, and the first section 211 extends along the radial direction of the pump housing 11, for example, the first section 211 can extend along the up-down direction. The second section 212 extends along the tangential direction of the pump housing 11, for example, the second section 212 can extend along the front-back direction. The small diameter section 22 is connected to the second section 212, and the extension direction of the small diameter section 22 and the second section 212 is consistent, that is, the small diameter section 22 and the second section 212 can be coaxially arranged and can both extend along the front-back direction.

[0041] This facilitates the assembly of the exhaust pipe 3 with the joint 2 from the tangential direction of the pump casing 11, reduces the axial space occupied by the small-diameter section 22 and the second section 212 on the circumferential side of the pump casing 11, avoids the problem of installation interference that is easy to occur in a narrow space, and improves the convenience of operation.

[0042] In some embodiments, the radial dimension of the free end of the small diameter segment 22 gradually increases in the direction toward the large diameter segment 21. Figure 2 As shown, the free end of the small diameter section 22 can be the rear end of the small diameter section 22, and the radial dimension of the rear end of the small diameter section 22 gradually increases from the rear to the front direction, thereby making the free end of the small diameter section 22 have a guiding effect, thereby facilitating the insertion of the small diameter section 22 into the exhaust pipe 3.

[0043] Optionally, the free end of the small diameter section 22 may be provided with a curved surface, which may be a quarter arc surface, thereby achieving a smooth transition with the outer peripheral surface of the small diameter section 22 and avoiding damage to the exhaust pipe 3 during plug-in assembly of the small diameter section 22 .

[0044] In some embodiments, the joint 2 is fixed to the pump housing 11 by bonding with a sealant. For example, a portion of the joint 2 can be plugged and assembled in the connecting hole. After assembly, a waterproof sealant can be applied to the joint 2 and the hole wall of the connecting hole, thereby fixing the joint 2 to the pump housing 11 and ensuring waterproof sealing.

[0045] The washing device of the embodiment of the utility model is described below.

[0046] The washing device of the embodiment of the utility model comprises a pumping system, and the pumping system may be a pumping system as described in any of the above embodiments.

[0047] In some embodiments, the washing device is a washing machine, which includes an outer tub 4 and a water inlet box, and the outlet end of the exhaust pipe 3 is connected to at least one of the outer tub 4 and the water inlet box.

[0048] For example, Figure 3As shown, the washing machine can be a tumble type washing machine, and the washing machine includes an inner drum 5 and an outer drum 4, and the outer drum 4 is sleeved on the outer peripheral side of the inner drum 5 and can be coaxially arranged with the inner drum 5. The exhaust pipe 3 can generally extend in the up and down direction, the bottom end of the exhaust pipe 3 can be sealed and connected to the joint 2 of the pumping system, and the top end of the exhaust pipe 3 can be connected to the inner cavity of the outer drum 4.

[0049] Thus, the gas and liquid discharged from the exhaust pipe 3 can be discharged into the outer tube 4, so that the liquid can be refluxed, avoiding the situation where external discharge easily causes pollution, and is also conducive to the recycling of the liquid.

[0050] In some other embodiments, the exhaust pipe 3 may also be directly connected to the water inlet box of the washing machine, which is a component for supplying water into the inner drum 5 and the outer drum 4, thereby realizing the reflux and reuse of the liquid.

[0051] In other embodiments, the outlet of the exhaust pipe 3 may also be arranged on the casing of the washing machine, so that the gas exhausted through the exhaust pipe 3 can be directly discharged to the outside of the washing machine.

[0052] In some embodiments, the washing device is a washing machine, a shoe washing machine or a dishwasher. It should be noted that the washing device can also be other electrical appliances or other devices that need to be drained by a pumping system.

[0053] In some embodiments, a plurality of clips may be provided in the washing device, and the plurality of clips may be distributed at intervals on the extension path of the exhaust pipe 3, so that the exhaust pipe 3 may be fixed at corresponding positions of the washing device by the plurality of clips.

[0054] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A pumping system, characterized in that: include: A pump body (1), the pump body (1) comprising a pump casing (11), the pump casing (11) being provided with a pump chamber (111) and a communicating hole, the communicating hole penetrating through a casing wall of the pump casing (11) and communicating with the pump chamber (111); A joint (2), the joint (2) being arranged on the outer peripheral side of the pump housing (11) and sealingly connected to the connecting hole; An exhaust pipe (3), the exhaust pipe (3) is sealedly connected to the joint (2), and the exhaust pipe (3) is used to exhaust the gas in the pump chamber (111).

2. The pumping system according to claim 1, characterized in that The ratio of the distance between the communicating hole and the top side of the pump housing (11) to the height dimension of the pump housing (11) in the up-down direction does not exceed one third.

3. The pumping system according to claim 2, characterized in that The outlet of the communication hole is arranged on the top side of the pump housing (11), and the communication hole extends in the up-down direction.

4. The pumping system according to claim 1, characterized in that The joint (2) comprises a large diameter section (21) and a small diameter section (22); one end of the large diameter section (21) is sealedly connected to the pump housing (11); the small diameter section (22) is connected to the other end of the large diameter section (21); the radial dimension of the small diameter section (22) is smaller than the radial dimension of the large diameter section (21); the small diameter section (22) is used to be inserted into the exhaust pipe (3); and the step surface between the large diameter section (21) and the small diameter section (22) is used to abut against the end of the exhaust pipe (3).

5. The pumping system according to claim 4, characterized in that The large-diameter section (21) comprises a first section (211) and a second section (212); the first section (211) is connected between the second section (212) and the pump housing (11); the first section (211) extends along the radial direction of the pump housing (11); the second section (212) extends along the tangential direction of the pump housing (11); the small-diameter section (22) is connected to the second section (212); and the small-diameter section (22) and the second section (212) have the same extension direction.

6. The pumping system according to claim 4, characterized in that The radial dimension of the free end of the small diameter section (22) gradually increases in the direction toward the large diameter section (21).

7. The pumping system according to any one of claims 1 to 6, characterized in that: The joint (2) is fixed to the pump housing (11) by bonding with a sealant.

8. A washing device, characterized in that: Comprising a pumping system as claimed in any one of claims 1 to 7 above.

9. The washing device according to claim 8, characterized in that: The washing device is a washing machine, comprising an outer drum (4) and a water inlet box, and the outlet end of the exhaust pipe (3) is connected to at least one of the outer drum (4) and the water inlet box.

10. The washing device according to claim 8, characterized in that: The washing device is a washing machine, a shoe washing machine or a dishwasher.

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