CN212382591U - Water tank drainage mechanism and cleaning device comprising same - Google Patents

Abstract

The utility model provides a basin drainage mechanism and belt cleaning device. This basin drainage mechanism sets up in the below of basin and includes drainage valve subassembly and drain pump assembly, the drainage valve subassembly is used for the circulation of control water and residue, the drain pump assembly is used for the drainage and washes the residue of basin, the drain valve subassembly includes valve body, drain valve motor and valve plug, the drain pump assembly includes the pump body, arranges pump motor and impeller. The valve body includes valve water inlet, valve plug connector and valve delivery port, and the pump body includes pump water inlet, impeller connector and pump outlet, wherein the valve water inlet is with the basin outlet pipe intercommunication of basin bottom, the valve delivery port with pump water inlet intercommunication, pump outlet and sewer intercommunication.

Description

Water tank drainage mechanism and cleaning device comprising same

Technical Field

The utility model relates to a basin drainage mechanism reaches belt cleaning device including this basin drainage mechanism.

Background

Dishwashers are increasingly used in ordinary households as one of kitchen electric appliances. The existing water tank type dish washer uses a water tank as a washing space, and the washed sewage is discharged through a water outlet of a water tank water outlet pipe at the bottom of the water tank. Generally, a residue basket with a filtering function is arranged at a water outlet of the dish washing machine and is used for collecting large-particle residues such as vegetable leaves, fishbones and the like on dishes. However, the easy adhesion of tiny particle residue leads to the drainage slowly on the one hand can plug up the waterlogging caused by excessive rainfall hole on the one hand, and on the other hand is washing the dishes the stage along with the dish washer inner chamber pours into clean water, and residue on the sediment basket will mix with clean water again, causes secondary pollution, influences the effect of washing the dishes of dish washer.

In order to prevent the small particle foreign matters from being adhered to the slag basket in the drainage process, the drainage pump is usually arranged on the drainage channel below the slag basket, the slag basket is flushed by utilizing the rotary water flow formed during the operation of the drainage pump, and the small particle residues adhered to the slag basket are sucked into the drainage pump and then discharged, so that the effect of cleaning the slag basket is achieved. That is, the drain pump functions to drain and flush the slag basket.

In addition, a drain valve is arranged on the drain channel behind the drain pump. In the process of washing dishes, the drain valve is in a closed state to play a role in stopping water; after the dish washing is finished, the drain valve is started to discharge the washed sewage to a sewer to play a role in draining; after the drainage is finished, the drain valve is closed again to prevent the water of the sewer from flowing back, and simultaneously, the bacteria in the sewer are prevented from entering the inside of the dish washing machine. That is, the drain valve has functions of stopping water, draining water, and blocking sewer bacteria.

However, after the draining operation is completed and the dishwasher is stopped, the pump chamber of the sump draining mechanism, which accommodates the drain pump, and the pipe connecting the pump outlet and the drain valve may have residual sewage, especially in the case of the draining operation. The bacteria can be bred in the residual sewage, and the bacteria can directly enter the interior of the dish washing machine to pollute dishes and the like in the interior of a water tank of the dish washing machine and the interior of the water tank.

Therefore, the solution of the problem of residual sewage is the research direction of the core of the drainage mechanism of the water tank.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims at providing a basin drainage mechanism reaches belt cleaning device including this basin drainage mechanism, its sewage that has not only thoroughly solved in the basin drainage mechanism remains the problem, has efficient drainage efficiency moreover, and the volume is less, simple structure, and stability is higher.

The utility model relates to a basin drainage mechanism, it sets up in the below of basin and includes drainage valve subassembly and drain pump subassembly, the drain valve subassembly is used for the circulation of control water and residue, the drain pump subassembly is used for the drainage and washes the residue of basin, the drain valve subassembly includes valve body, drain valve motor and valve plug, the drain pump subassembly includes the pump body, arranges pump motor and impeller, the valve body includes valve water inlet, valve plug connector and valve delivery port, and the pump body includes pump water inlet, impeller connector and pump outlet, wherein the basin outlet pipe intercommunication of valve water inlet and bottom of the basin, the valve delivery port with pump water inlet intercommunication, pump outlet and sewer intercommunication.

In one embodiment, the valve outlet and the pump inlet are the same opening shared by the valve body and the pump body.

In one embodiment, the valve body and the pump body are integrally injection molded shells.

In one embodiment, the valve body includes a water inlet pipe portion, an elbow pipe portion, and a valve chamber pipe portion, the pump body includes a pump chamber pipe portion in which an impeller is disposed and a water outlet pipe portion, wherein the valve chamber pipe portion and the pump chamber pipe portion communicate with the pump water inlet through the valve water outlet, and wherein the valve water inlet is located at an open end of the water inlet pipe portion, the valve plug connection port is located at an open end of the valve chamber pipe portion, the impeller connection port is located at an open end of the pump chamber pipe portion, and the pump water outlet is located at an open end of the water outlet pipe portion.

In one embodiment, the elbow portion includes an upper orifice adjacent the inlet tube portion and a lower orifice adjacent the valve chamber tube portion, the upper orifice having a first diameter that is the same as a second diameter of the lower orifice.

In one embodiment, the valve body further comprises a conical pipe portion located between the water inlet pipe portion and the elbow portion, the conical pipe portion has a passage that is gradually enlarged toward the water tank, and a pipe wall of the conical pipe portion forms a non-zero included angle with a bottom plane of the water tank.

In one embodiment, the central axis of the valve cavity formed by the valve cavity tube portion is parallel to the bottom plane of the water tank.

In one embodiment, the central axis of the valve cavity formed by the valve cavity tube portion is inclined with respect to the bottom plane of the water tank.

In one embodiment, the distance between the impeller and the pump water inlet is greater than 5 mm.

In one embodiment, the elbow portion and the valve chamber tube portion are connected at a dividing rib, and the valve water outlet and the pump water inlet are arranged on the side wall of the valve chamber tube portion and are adjacent to the dividing rib.

In one embodiment, the sink drain mechanism further comprises an additional pipe, a water inlet of the additional pipe is communicated with the pump water outlet, and a water outlet of the additional pipe faces vertically downward.

The utility model discloses still relate to a belt cleaning device, belt cleaning device includes the basin to still include as above basin drainage mechanism.

In one embodiment, the washing device is a dishwasher.

Drawings

The advantages and objects of the present invention will be better understood from the following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the relationship of the various components. In the drawings:

FIG. 1 is an overall schematic view illustrating one embodiment of a sink drain mechanism for a cleaning device of the present invention;

FIG. 2 is an exploded view of the sink drain mechanism according to FIG. 1;

FIG. 3 is a cross-sectional view of the sink drain mechanism according to FIG. 1;

FIG. 4 shows the valve body and the pump body of the water drainage mechanism of the present invention;

FIG. 5 is a cross-sectional view of the valve body and pump body according to FIG. 4;

fig. 6 is an overall schematic view of another embodiment of a sink drain mechanism for a cleaning device according to the present invention; and

fig. 7 is a cross-sectional view of the sink drain mechanism according to fig. 6.

Detailed Description

Various embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Here, it is to be noted that, in the drawings, the same reference numerals are given to constituent parts having substantially the same or similar structures and functions, and repeated description thereof will be omitted. The terms "horizontal direction", "vertical direction", and the like herein are described with respect to the drawings of the present invention, unless otherwise specified. The description of "first", "second" and variations thereof is merely for purposes of distinguishing between various components and is not intended to limit the scope of the present disclosure, which may be written as "second" or the like, without departing from the scope of the present disclosure.

The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of the respective portions and the mutual relationships thereof.

Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to fig. 1 to 7.

Referring to fig. 1 to 2, a sink drain mechanism for a washing apparatus according to an embodiment of the present invention includes a drain valve assembly 1 and a drain pump assembly 2. In a washing device according to an embodiment of the present invention, a water tank drainage mechanism is provided below a water tank of the washing device. The washing device is for example a dishwasher and in other embodiments it may also be a device for washing other objects.

The drain pump assembly 2 is used to drain and flush the sink of the cleaning device of residue, particularly residue on the basket. The drain valve assembly 1 is used to control the flow of water and debris and to prevent bacteria in the sewer from entering the cleaning device. As shown in fig. 2, the drain valve assembly 1 includes a valve body 3, a drain valve motor 4, and a valve plug 5; the drain pump assembly 2 includes a pump body 6, a drain pump motor 7, and an impeller 8.

As shown in fig. 3 to 5, the valve body 3 includes a valve inlet 9, a valve plug connection port 10, and a valve outlet 11, and the pump body 6 includes a pump inlet 12, an impeller connection port 13, and a pump outlet 14. The valve inlet 9 communicates with a sink outlet pipe (not shown for simplicity of illustration) at the bottom of the sink. The valve outlet 11 is in communication with the pump inlet 12. As shown in fig. 3 and 4, the valve outlet 11 and the pump inlet 12 are openings that are common to the valve body 3 and the pump body 6. In addition, the pump outlet 14 communicates with a sewer.

For example, as shown in fig. 2-3, the impeller 8 is fitted over the output shaft of the drain pump motor 7 and is received in the pump cavity of the pump body 6, and the drain pump motor 7 is mounted to the impeller connection port 13 by a seal ring to prevent water from entering the drain pump motor 7. The impeller 8 powers the fluid delivery driven by the drain pump motor 7 and encourages the fluid to carry away small particulate matter that has stuck to the slag basket. The drain valve motor 4 is installed at the valve plug connector 10 and the valve plug 5 is accommodated in the valve cavity of the valve body 3, the drain valve motor 4 drives the valve plug 5 when being powered on so as to enable the valve body 3 to be conducted with the pump body 6, and the valve plug 5 is driven when being powered off so as to enable the valve body 3 to be separated from the pump body 6.

In the water tank drain mechanism of the present invention, the drain pump module 2 is provided in the downstream of the drain valve module 1. When using basin drainage mechanism drainage, the drain pump motor 7 circular telegram earlier, impeller 8 rotatory back, and drain valve motor 4 circular telegram again to open valve plug 5 and then switch on the water route. When the drain pump motor 4 is turned off, the drain pump motor 7 is still in operation, thereby ensuring that the wash water upstream of the drain pump assembly 2 (including in the drain valve) can be completely drained. Not only can guarantee not to remain the washing water in the valve body 3 after drain valve motor 4 closes, avoid remaining washing water to breed the bacterium and then pollute belt cleaning device's basin, can prevent discharged washing water backward flow to the valve body 3 in addition, avoid reverse pollution belt cleaning device's basin such as the bacterium of sewer to improve belt cleaning device's clean degree, guaranteed user's health.

In addition, through the opening of the valve body 3 and the 6 shares of the pump body, the utility model discloses a basin drainage mechanism has shortened the center of pump chamber as far as possible and has kept away from the perpendicular distance of the outlet of basin outlet pipe to guarantee the suction of drain pump. In addition, above-mentioned basin drainage mechanism has reduced the complete machine volume, is applicable to more installation environment. Furthermore, the water tank drainage mechanism reduces the distance of foreign matters passing through the pipeline, and reduces the risk of blocking the pipeline by the foreign matters.

In other embodiments, the valve outlet 11 and the pump inlet 12 may be separate openings. For example, when the valve body 3 and the pump body 6 communicate through a common pipe, the valve outlet 11 is an upper opening of the pipe, and the pump inlet 12 is a lower opening of the pipe.

As shown in fig. 4-5, the valve body 3 and the pump body 6 are integrally formed as a housing by injection molding. The valve body 3 comprises a water inlet pipe part 15, an elbow pipe part 16 and a valve cavity pipe part 17, and the pump body 6 comprises a pump cavity pipe part 18 and a water outlet pipe part 19. The valve chamber tube portion 17 forms a valve chamber in its interior, in which the valve plug 5 is accommodated. The pump chamber tube portion 18 forms a pump chamber in its interior, in which the impeller 8 is accommodated. The valve chamber pipe portion 17 is, for example, a straight pipe extending in the horizontal direction. The pump chamber tube portion 18 is, for example, a straight tube extending in the vertical direction. The outlet pipe portion 19 is, for example, a straight pipe extending in the horizontal direction, and may have a gradually increasing pipe diameter. The valve chamber tube section 17 and the pump chamber tube section 18 communicate with the pump inlet 12 through the valve outlet 11, as shown in fig. 5, the valve outlet 11 and the pump inlet 12 being a common opening. The valve inlet 11 is located at the open end of the inlet pipe section 15 where the inlet pipe section 15 is connected to the sink outlet pipe. The plug connection port 10 is located at the open end of the valve chamber tube portion 17. The impeller connection port 13 is located at the open end of the pump chamber tube portion 18. The pump outlet 14 is located at the open end of the outlet pipe portion 19 where the outlet pipe portion 19 is connected to a sewer.

The integral injection molding reduces the sewage residue at the joint when a plurality of parts are combined, gradually reduces the height of the water flow channel according to the water flow direction, realizes a sewage residue-free area, and thoroughly solves the problem of sewage residue; in addition, the number of parts adopted in the mechanism can be reduced through the integrally injection molded shell, so that the assembly procedures are reduced, and the cost is reduced; and the size deviation caused by installation can be reduced, and the stability of the whole machine is improved. In addition, the strength of the integrated mechanism is greater than that of the split structure, and thus the stability is higher.

In addition, as shown in FIG. 5, the elbow section 16 includes an upper nozzle 20 adjacent the water inlet pipe section 15 and a lower nozzle 21 adjacent the valve chamber pipe section 17, the upper nozzle 20 having a first diameter φ' that is the same as a second diameter φ "of the lower nozzle 21. Therefore, the utility model discloses a drainage mechanism can guarantee that the water velocity base plate of last mouth of pipe 20 and lower mouth of pipe 21 department is unanimous to reduce the loss.

Further, for ease of installation, the inlet pipe section 15 will typically have a larger pipe diameter than the elbow section 16. To this end, as shown in fig. 5, the valve body 6 further comprises a conical pipe portion 22 between the inlet pipe portion 15 and the elbow portion 16, the conical pipe portion 22 having a passage diverging towards the water reservoir (i.e. in a vertically upward direction), and the pipe wall of the conical pipe portion 22 forming a non-zero angle α, e.g. α > 0 °, with the bottom plane (i.e. horizontal plane) of the water reservoir. Therefore, the utility model discloses a basin drainage mechanism can guarantee that the residual water of inlet tube part 15 can be arranged to the greatest extent, can not remain in inlet tube part 15's bottom.

Referring to fig. 5, the valve chamber pipe portion 17 of the valve body 3 is a straight pipe extending in the horizontal direction, and the joint of the bent pipe portion 16 and the valve chamber pipe portion 17 is a partition rib 23 of the housing, which has a large thickness. The valve outlet 11 and the pump inlet 12 are arranged next to the dividing rib 23, and in the case that the valve outlet 11 and the pump inlet 12 are a common opening, the common opening is arranged on the side wall of the valve chamber pipe 17 and clings to the dividing rib 23. Through the structure, in the moment of opening the valve plug, the washing water can immediately flow into the pump cavity through the valve water outlet, so that the water discharge amount is increased, the water discharge efficiency is improved, and the space is saved.

Referring again to fig. 3, the central axis of the valve cavity formed by the valve cavity tube portion 17 is parallel to the bottom plane of the water tank, i.e. parallel to the horizontal direction. Therefore, the utility model discloses an there is not the dead angle in the slope setting among the drainage mechanism, is favorable to being discharged through the residue of valve pocket, has avoided the residue to remain at the dead angle and the jam and the health problem that bring.

In addition, as shown in fig. 3, the distance a between the impeller 8 and the pump inlet 12 in the pump chamber formed by the pump chamber tube portion 18 is greater than 5 mm. Therefore, the utility model discloses a basin drainage mechanism can guarantee that the residue among the belt cleaning device can normally discharge, and can not block between impeller and pump chamber.

Referring again to fig. 2, the sink drain mechanism further comprises an additional pipe 24, the inlet of the additional pipe 24 communicating with the pump outlet 14, and the outlet of the additional pipe 24 facing vertically downwards and communicating with a sewer, for example. Since the water outlet of the additional pipe faces downward, the water can be drained by the self weight of the water. In addition, the drain pipe of connecting the sewer only need in vertical direction with the additional delivery port of pipe be connected can, consequently the utility model discloses a drainage mechanism both had been applicable to left side and had put basin formula dish washer, was applicable to right side again and puts basin formula dish washer.

As shown in fig. 6 to 7, in another embodiment of the water tank drain mechanism, the central axis of the valve chamber formed by the valve chamber pipe portion 17 (shown by the dotted line in fig. 6) is inclined with respect to the bottom plane (i.e., horizontal plane) of the water tank, so that the self weight of the sewage can be utilized to facilitate the drainage.

In addition, the technical features disclosed in the above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the invention to achieve the aim of the invention.

Claims (13)

1. A sink drain mechanism, arranged below a sink and comprising a drain valve assembly (1) for controlling the circulation of water and debris and a drain pump assembly (2) for draining and flushing the debris of the sink, the drain valve assembly comprising a valve body (3), a drain valve motor (4) and a valve plug (5), the drain pump assembly comprising a pump body (6), a drain pump motor (7) and an impeller (8), characterized in that,

the valve body (3) comprises a valve water inlet (9), a valve plug connecting port (10) and a valve water outlet (11), the pump body (6) comprises a pump water inlet (12), an impeller connecting port (13) and a pump water outlet (14), the valve water inlet (9) is communicated with a water tank water outlet pipe at the bottom of the water tank, the valve water outlet (11) is communicated with the pump water inlet (12), and the pump water outlet (14) is communicated with a sewer.

2. Sink drain mechanism according to claim 1, wherein the valve outlet (11) and the pump inlet (12) are the same opening shared by the valve body (3) and the pump body (6).

3. A sink drain mechanism according to claim 1 or 2, wherein the valve body (3) and the pump body (6) are integrally injection moulded housings.

4. Sink drain mechanism according to claim 3, wherein the valve body (3) comprises a water inlet pipe section (15), a bent pipe section (16) and a valve chamber pipe section (17), the pump body (6) comprises a pump cavity pipe part (18) in which an impeller (8) is arranged and a water outlet pipe part (19), wherein the valve chamber pipe section (17) and the pump chamber pipe section (18) are in communication with the pump water inlet (12) via the valve water outlet (11), and wherein the valve inlet (9) is located at an open end of the inlet pipe section (15), the valve plug connecting port (10) is positioned at the open end of the valve cavity pipe part (17), the impeller connection port (13) is located at an open end of the pump chamber tube portion (18), and the pump outlet (14) is located at an open end of the outlet pipe portion (19).

5. The sink drain mechanism according to claim 4, wherein the elbow portion (16) comprises an upper orifice (20) adjacent the inlet pipe portion (15) and a lower orifice (21) adjacent the valve chamber pipe portion (17), the upper orifice (20) having a first diameter that is the same as a second diameter of the lower orifice (21).

6. A sink drain mechanism according to claim 4, wherein the valve body (3) further comprises a cone portion (22) between the water inlet pipe portion (15) and the elbow portion (16), the cone portion having a passage diverging towards the sink and having a wall forming a non-zero angle with the bottom plane of the sink.

7. Sink drain mechanism according to claim 4, wherein the central axis of the valve cavity formed by the valve cavity tube portion (17) is parallel to the bottom plane of the sink.

8. Sink drain mechanism according to claim 4, wherein the central axis of the valve cavity formed by the valve cavity tube portion (17) is inclined with respect to the bottom plane of the sink.

9. A sink drain mechanism according to claim 4, wherein the distance (a) between the impeller (8) and the pump inlet (12) is greater than 5 mm.

10. Sink drain mechanism according to claim 4, characterized in that the elbow section (16) and the valve chamber tube section (17) are connected at a dividing rib (23), the valve outlet (11) and the pump inlet (12) being arranged on a side wall of the valve chamber tube section (17) and next to the dividing rib (23).

11. A sink drain mechanism according to claim 1 or 2, further comprising an additional pipe (24) having an inlet communicating with the pump outlet (14) and an outlet facing vertically downwards.

12. A cleaning device comprising a sink, wherein the cleaning device further comprises a sink drain mechanism as claimed in any one of claims 1-11.

13. The cleaning apparatus defined in claim 12, wherein the cleaning apparatus is a dishwasher.

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