CN212140378U - Water tank drainage mechanism for cleaning device and cleaning device - Google Patents

Abstract

The utility model provides a basin drainage mechanism and belt cleaning device for belt cleaning device. Drainage mechanism includes drainage pump subassembly and drain valve subassembly, the drain pump subassembly is used for the drainage and washes the residue of basin, the drain valve subassembly is used for the circulation of control water and residue, the drain pump subassembly includes the pump case, drain pump motor and impeller, the pump case includes first inlet tube, first outlet pipe and respectively with first inlet tube and first outlet pipe intercommunication and form the first connecting pipe of pump chamber, the basin outlet pipe intercommunication of first inlet tube and basin bottom, first outlet pipe is connected to drain valve subassembly in order to communicate with the sewer when the drain valve subassembly opens, the drain pump motor sets up in the pump chamber open tip and the impeller is held in the pump chamber, and the center pin of impeller and the bottom plane of basin form nonzero first contained angle alpha.

Description

Water tank drainage mechanism for cleaning device and cleaning device

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. Generally, a residue basket is arranged at a water outlet of a dishwasher and used for blocking large-particle foreign matters such as vegetable leaves, fish bones and the like from flowing into a drain pipe, so that the problems that the drain pipe is blocked, punctured and the like by the foreign matters are avoided. However, since the foreign matters in the drainage process are too much, small particle foreign matters are usually adhered to the slag basket, on one hand, the drainage is slow; on the other hand injects into clean water along with the dish washer inner chamber in the stage of washing dishes, and the foreign matter on the sediment basket can mix with clean water again, causes secondary pollution, influences the effect of washing dishes of dish washer.

In order to prevent the small particle foreign matters from being adhered to the slag basket in the drainage process, a drainage pump can be arranged below the slag basket. When the draining pump operates, rotating water flow can be formed in the inner cavity of the dish-washing machine to wash the residue basket, and small particle foreign matters adsorbed on the residue basket are washed into the water inlet of the draining pump, so that the effect of cleaning the residue basket is achieved. That is, the drain pump functions to drain and flush the slag basket.

In addition, the dishwasher is equipped with a drain valve. In the process of washing dishes by the dish washing machine, 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 drain 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 prevent the sewer bacteria 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.

When the drainage pump finishes draining, liquid and gaseous water still exists in a pump cavity of the drainage pump, the impeller cannot drain the residual water, the impeller rotates in the state to generate large noise, and the continuous operation of the drainage pump can continuously generate the noise. In addition, after the drainage pump and the drainage valve stop working, sewage after washing can be remained in the pump cavity of the drainage pump, and bacteria can be bred in the residual sewage, so that the inner cavity of the dish washing machine and bowls and chopsticks in the inner cavity are polluted.

Therefore, the existing dish-washing machine has the problems of high noise and easy pollution.

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, and it not only has efficient cleaning performance, and the noise is less moreover, clean health.

The utility model relates to a basin drainage mechanism for belt cleaning device, it sets up in belt cleaning device's basin below and includes drainage pump subassembly and drain valve subassembly, the drain pump subassembly is used for the drainage and washes the residue of basin, the drain valve subassembly is used for controlling the circulation of water and residue, the drain pump subassembly includes pump case, drain pump motor and impeller, wherein the pump case includes first inlet tube, first outlet pipe and respectively with the first inlet tube with the first connecting pipe that the outlet pipe communicates and forms the pump chamber, the first inlet tube with the basin outlet pipe of basin bottom communicates, the first outlet pipe is connected to the drain valve subassembly, in order to communicate with the sewer when the drain valve subassembly is opened, the drain pump motor set up in the open tip of the pump chamber of first connecting pipe and the impeller is held in the pump chamber of first connecting pipe, and a first non-zero included angle alpha is formed between the central axis of the impeller and the bottom plane of the water tank.

In one embodiment, the drain valve assembly includes a valve housing, a drain valve motor and a valve plug, wherein the valve housing includes a second inlet pipe, a second outlet pipe and a second connecting pipe respectively communicating with the second inlet pipe and the second outlet pipe and forming a valve chamber, wherein the first outlet pipe communicates with the second inlet pipe, the second outlet pipe communicates with a sewer, and wherein the drain valve motor is disposed at an open end of the valve chamber of the second connecting pipe and the valve plug is received in the valve chamber of the second connecting pipe.

In one embodiment, the center of the pump chamber is closer to a bottom plane of the water tank than the center of the valve chamber in a height direction of the water tank.

In one embodiment, the sump pump assembly further includes an end cover disposed on a side of the impeller facing the sump pump motor, and the end cover has a channel diverging toward the impeller.

In one embodiment, a surface of the end cap facing the impeller forms a second angle β with a bottom plane of the water tank, β > 0 °.

In one embodiment, the first water inlet pipe comprises an upper end pipe and a lower elbow pipe, the lower elbow pipe comprising an upper spout and a lower spout, wherein the first water inlet pipe is arranged at the bottom of the basin at the upper end pipe by an external connection, and wherein the first water inlet pipe is connected to the first connection pipe at the lower spout.

In one embodiment, the distance between the end surface of the lower nozzle and the upper end surface of the impeller is at least 4 mm.

In one embodiment, the central axis of the lower nozzle is aligned with the central axis of the impeller.

In one embodiment, a center of the upper end pipe, a center of the lower bent pipe, a center of the pump chamber, a lowest point of the end cover, a center of the first water outlet pipe, a center of the valve chamber, and a center of the second water outlet pipe are sequentially arranged in a direction opposite to a height direction of the water tank.

In one embodiment, a central axis of the valve chamber forms a third included angle γ greater than or equal to zero degrees with a bottom plane of the water tank, and a center of an end of the second connection pipe away from the second water inlet pipe is closer to the bottom plane of the water tank than a center of a sealing end of the valve plug, which is used for sealing the valve chamber when the drain valve motor is turned off, in a height direction of the water tank.

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 of FIG. 1;

FIG. 3 is a side view of the sink drain mechanism disposed below the slag basket of the cleaning device of the present invention, showing a cross-section of the drain pump assembly;

FIG. 4 is a side view of an embodiment of the sink drain mechanism of the present invention showing a partial cross-section of the drain valve assembly;

FIG. 5 is a schematic view of an embodiment of a sink drain mechanism of the present invention;

FIG. 6 is a schematic view of an end cap used in the drainage mechanism of the present invention; and

fig. 7 is an overall schematic view of one embodiment of a sink drain mechanism of the present invention, showing a valve plug of the drain valve assembly.

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", "height direction", and the like herein are described with respect to the drawings of the present invention, unless otherwise specified. The description of "first" and its variants is merely for the purpose of distinguishing the components and does not limit the scope of the invention, which may be written as "second" and so on without departing from the scope of the invention.

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, according to an embodiment of the present invention, a sump drain mechanism for a washing apparatus includes a drain pump assembly 1 and a drain valve assembly 2. The drain pump assembly is used for draining water and flushing residues of a water tank of the cleaning device, particularly residues on a residue basket, and the drain pump assembly is used for controlling the circulation of water and residues and preventing bacteria in a sewer from entering the cleaning device. The drain pump assembly 1 includes a pump housing 3, a drain pump motor 5, and an impeller 4. The drain valve assembly includes a valve housing 6, a drain valve motor 8, and a valve plug 7.

As shown in fig. 2, the pump housing 3 includes a first water inlet pipe 9, a first water outlet pipe 11, and a first connection pipe 10 communicating with the first water inlet pipe and the first water outlet pipe, respectively, and forming a pump chamber 18, and the valve housing 6 includes a second water inlet pipe 12, a second water outlet pipe 14, and a second connection pipe 13 communicating with the second water inlet pipe and the second water outlet pipe, respectively, and forming a valve chamber 19. The pump housing 3 and the valve housing 6 have the form of a tee, for example.

In one embodiment of the invention, as shown in fig. 3, the sink drain mechanism as shown in fig. 1-2 is disposed below a slag basket 23 of a sink of a cleaning device, such as a dishwasher. The first inlet conduit 9 communicates with the sink outlet conduit 24 at the bottom of the sink such that the first inlet conduit 9 is substantially aligned with the sink outlet.

Referring to fig. 1 to 4, a first water outlet pipe 11 communicates with a second water inlet pipe 12, a second water outlet pipe 14 communicates with a sewer, a drain pump motor 5 is provided at an open end portion of a pump chamber 18 of a first connection pipe 10 and an impeller 4 is received in the pump chamber 18 of the first connection pipe, a drain valve motor 8 is provided at an open end portion of a valve chamber 19 of a second connection pipe 13 and a valve plug 7 is received in the valve chamber 19 of the second connection pipe.

The valve plug 7 controls the opening and closing of the valve chamber 19. When the valve plug 7 is opened under the control of the drain valve motor 8, the valve cavity 19 and the second water outlet pipe 14 are communicated. When the valve plug 7 is closed under the control of the drain valve motor 8, the valve cavity 19 and the second water outlet pipe 14 are separated, and water in the inner cavity of the cleaning device cannot be discharged.

For example, the impeller 4 is fitted over an output shaft of the drain pump motor 5, and the drain pump motor 5 is connected to an end of the first connection pipe 10 remote from the first water inlet pipe 9 through a sealing ring to prevent water from entering the drain pump motor 5. The impeller 4 powers the delivery of fluid under the drive of the drain pump motor 5.

Referring again to fig. 3, the central axis of the impeller 4 forms a non-zero first angle α with the bottom plane of the flume (e.g., represented by the solid horizontal line in the figure), i.e., α > 0 °.

When the washing device drains, the drain pump motor 5 and the drain valve motor 8 are started, the impeller 4 starts to rotate, and the valve plug 7 moves to open the passage in the valve cavity 19, so that the water for washing flows out from the water outlet pipe of the water tank, enters the pump cavity 18 from the first water inlet pipe 9, flows into the valve cavity 19 under the driving of the impeller 4, and further flows into the sewer pipe from the second water outlet pipe 14.

When no water discharge is required, the valve motor 8 is closed and the valve plug 7 blocks the passage in the valve chamber 19, i.e. closes the passage between the second inlet pipe 12 and the second outlet pipe 14, so that the water for washing cannot be discharged from the second outlet pipe 14.

In addition, when impeller 4 is rotatory, can produce the vortex power, the vortex power gets into belt cleaning device's inner chamber through first inlet tube 9, influence the water pressure in the belt cleaning device inner chamber, the water that drives in the belt cleaning device inner chamber takes place high-speed rotation, make belt cleaning device's drain outlet department velocity of water flow bigger, thereby take away the tiny particle foreign matter that glues on the sediment basket, the tiny particle foreign matter that can pass the sediment basket gets into first inlet tube 9 along the rivers, then discharge from second outlet pipe 14 behind pump chamber 18, valve pocket 19 in proper order. Therefore, the water in the washing apparatus can be quickly discharged.

Further, because the central axis of the impeller 4 and the bottom plane of the water tank form a non-zero first included angle α, water in the pump chamber 18 can be drained, so that residual water can be prevented from being generated, and then, generation of large noise and breeding of bacteria can be avoided.

As shown in fig. 3-5, the drain pump assembly further includes an end cap 20 disposed on a side of the impeller 4 facing the drain pump motor 5, such as by being fitted through a central aperture in the output shaft of the drain pump motor 5, between the impeller 4 and the drain pump motor 5.

Further, as shown in fig. 3, the first inlet pipe 9 includes an upper end pipe 15 and a lower bent pipe 16, the lower bent pipe includes an upper pipe orifice 21 and a lower pipe orifice 22, the first inlet pipe 9 is provided at the bottom of the water tank at the upper end pipe 15 through an external connection member 17, and the first inlet pipe 9 is connected to the first connection pipe 10 at the lower pipe orifice 22.

The outer connecting piece 17 is, for example, fitted around the upper end tube 15 or formed integrally with the upper end tube. After the first water inlet pipe 9 is installed below the slag basket of the water tank, the water for cleaning in the inner cavity of the cleaning device can flow into the pipeline of the water tank drainage mechanism from the water outlet of the water tank water outlet pipe after being filtered by the slag basket and is finally discharged to a sewer.

For example, the central axis of the lower nozzle 22 is aligned with the central axis of the impeller 4 (as shown by the line passing through the centers of the impeller 4 and the lower nozzle 22 in fig. 3). Therefore, the centrifugal force of the rotation center of the impeller can penetrate through the lower pipe orifice 22 with smaller loss and is transmitted to the water tank water outlet pipe 24 through the first water inlet pipe 9, and the eddy force is formed at the water outlet of the water tank water outlet pipe to wash away small particle foreign matters on the slag basket. For example, the central axis of the upper nozzle 21 and the central axis of the upper end pipe 15 are parallel, and the pipe diameter of the upper nozzle 21 is equal to the pipe diameter of the lower nozzle 22.

As shown in fig. 3-4, the center of the pump chamber 18 is closer to the bottom plane of the water tank than the center of the valve chamber 19 in the height direction of the water tank, i.e., in the vertically upward direction in the drawing. For example, in the direction opposite to the height direction of the water tank (i.e., vertically downward in the drawing), the center of the upper end pipe 15, the center of the lower bent pipe 16, the center of the pump chamber 18, the lowest point of the end cover 20, the center of the first outlet pipe 11, the center of the valve chamber 19, and the center of the second outlet pipe 14 are arranged in this order. That is, the respective centers are arranged at progressively increasing distances from the bottom plane of the sink. The center as used herein refers to, for example, the geometric center of the tube. For example, the center of the pump chamber refers to the geometric center of the pump chamber of the cylinder, and the center of the valve chamber refers to the geometric center of the valve chamber of the cylinder.

By the arrangement, residual water after cleaning can flow out of the drainage mechanism by means of self weight and then is drained into a sewer. In addition, after the drainage valve assembly is closed, no residual water can be ensured from the inner cavity of the cleaning device to the head part of the valve plug 7 of the drainage valve, and the phenomenon that bacteria produced by the residual water pollute bowls is avoided; simultaneously, valve plug 7 closes the bacterial microorganism that prevents the sewer and along the reverse belt cleaning device inner chamber of polluting of pipeline, improves belt cleaning device's clean degree, guarantees user's health.

As shown in fig. 5-6, the end cap 20 has a passage that is diverging toward the impeller 4. When the end cap 20 and the impeller 4 are mounted on the output shaft of the drain pump motor 5, the surface of the end cap facing the impeller forms a second angle β with the bottom plane of the sump (e.g. horizontally in the figure), β > 0 °. This shape, which gradually shrinks in the direction of water discharge, facilitates the outflow of the residual water in the pump chamber 18, preventing the water from remaining in the pump chamber.

In addition, the distance a between the end surface of the lower nozzle 22 and the upper end surface of the impeller 4 (i.e., the surface of the end of the impeller 4 away from the drain pump motor 5) is at least 4mm, i.e., a is not less than 4mm, thereby ensuring smooth discharge of the residue in the cleaning apparatus.

As shown in fig. 7, the central axis of the valve chamber 19 (indicated by the dotted line) forms a third angle γ ≧ 0 ° with the bottom plane of the water tank (i.e., the horizontal direction indicated by the solid line in the drawing), and the center of the end 26 of the second connection pipe 13 remote from the second water inlet pipe 12 in the height direction of the water tank is closer to the bottom plane of the water tank than the center of the sealing end 25 of the valve plug 7 for sealing the valve chamber 19 when the drain valve motor is off. By this arrangement it is ensured that the outlet end of the second outlet pipe 14 is at its lowest point in the vertically downward direction, facilitating the discharge of residual water or foreign matter residues from the second outlet pipe, so that water for cleaning and foreign matter residues do not accumulate in the valve chamber 19 and cause a bad closure of the valve plug or spoilage of the residues.

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 (12)

1. A sink drain mechanism for a washing device, disposed below a sink of the washing device and including a drain pump assembly (1) and a drain valve assembly (2), the drain pump assembly being for draining and rinsing residue of the sink, the drain valve assembly being for controlling circulation of water and residue, the drain pump assembly including a pump housing (3), a drain pump motor (5) and an impeller (4), wherein the pump housing includes a first water inlet pipe (9), a first water outlet pipe (11) and a first connecting pipe (10) communicating with the first water inlet pipe and the first water outlet pipe, respectively, and forming a pump chamber (18), characterized in that,

the first water inlet pipe is communicated with a water tank water outlet pipe (24) at the bottom of the water tank, the first water outlet pipe is connected to the drain valve assembly so as to be communicated with a sewer when the drain valve assembly is opened, the drain pump motor is arranged at the open end of a pump cavity (18) of the first connecting pipe, the impeller is accommodated in the pump cavity (18) of the first connecting pipe, and a central shaft of the impeller forms a non-zero first included angle (alpha) with the bottom plane of the water tank.

2. Sink drain mechanism according to claim 1, wherein the drain valve assembly comprises a valve housing (6), a drain valve motor (8) and a valve plug (7),

wherein the valve casing (6) comprises a second water inlet pipe (12), a second water outlet pipe (14) and a second connecting pipe (13) which is respectively communicated with the second water inlet pipe and the second water outlet pipe and forms a valve cavity (19),

wherein the first outlet pipe (11) is in communication with the second inlet pipe (12), the second outlet pipe (14) is in communication with a sewer, an

Wherein the drain valve motor (8) is disposed at an open end portion of a valve chamber (19) of the second connection pipe (13) and the valve plug (7) is accommodated in the valve chamber (19) of the second connection pipe.

3. The sink drain mechanism according to claim 2, wherein a center of the pump chamber is closer to a bottom plane of the sink than a center of the valve chamber in a height direction of the sink.

4. The sump drain mechanism of claim 2, wherein the drain pump assembly further comprises an end cap (20) disposed on a side of the impeller facing the drain pump motor, and the end cap has a channel diverging toward the impeller.

5. The sink drain mechanism according to claim 4, wherein a surface of the end cap facing the impeller forms a second angle (β) with a bottom plane of the sink, the second angle being greater than 0 °.

6. The sink drain mechanism according to claim 4, wherein the first inlet pipe comprises an upper end pipe (15) and a lower elbow pipe (16), the lower elbow pipe comprising an upper nozzle (21) and a lower nozzle (22), wherein the first inlet pipe is arranged at the bottom of the sink at the upper end pipe by an external connection (17), and wherein the first inlet pipe is connected to the first connection pipe at the lower nozzle.

7. A sink drain mechanism according to claim 6, wherein the distance between the end face of the lower nozzle (22) and the upper end face of the impeller (4) is at least 4 mm.

8. A sink drain mechanism according to claim 6, wherein the central axis of the lower nozzle (22) is aligned with the central axis of the impeller.

9. A sink drain mechanism according to claim 6, wherein the centre of the upper end pipe (15), the centre of the lower bent pipe (16), the centre of the pump chamber (18), the lowest point of the end cap (20), the centre of the first outlet pipe (11), the centre of the valve chamber (19) and the centre of the second outlet pipe (14) are arranged in sequence in a direction opposite to the height direction of the sink.

10. A water tank drain mechanism according to claim 2, characterized in that the central axis of the valve chamber (19) forms a third angle (γ) with the bottom plane of the water tank which is larger than or equal to zero degrees, and in that the centre of the end (26) of the second connecting pipe remote from the second inlet pipe is closer to the bottom plane of the water tank than the centre of the sealing end (25) of the valve plug for sealing the valve chamber when the drain valve motor is closed in the height direction of the water tank.

11. A cleaning device comprising a sink, wherein the cleaning device further comprises a sink drain mechanism as claimed in any one of claims 1-10.

12. The cleaning apparatus defined in claim 11, wherein the cleaning apparatus is a dishwasher.

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