Drainage structure and washing device

Abstract

The utility model relates to a drainage structure and a washing device, the drainage structure comprising: a shell component, the shell component is provided with a connected liquid collecting chamber and a liquid passing chamber; a pipe component, the liquid passing chamber is connected with the pipe component to form a drainage channel; a drainage pump, the drainage pump comprises an impeller rotatably arranged in the liquid passing chamber to drive the liquid in the liquid collecting chamber to be discharged to the outside through the drainage channel; an opening and closing device, the opening and closing device comprises a plugging part and a driving component, the driving component is transmission-connected with the plugging part, the plugging part is movably arranged in the pipe component and has an open position and a closed position, the plugging part can open the drainage channel when it is in the open position, and can close the drainage channel when it is in the closed position. The drainage structure of the present application, the opening and closing device and the drainage pump are started so that the washing waste water can be pumped to the outside through the drainage channel for discharge; after the drainage is completed, the opening and closing device and the drainage pump are successively closed, so that the plugging part is in the closed position to close the drainage channel, and the residual water will not be able to flow back to the liquid collecting chamber.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a drainage structure and a washing device. Background Art

[0002] After completing the washing work, the dishwasher needs to discharge the washing waste water accumulated in the inner cavity. It usually uses a drain pump to draw water from the water cup and discharge it outside the dishwasher. At the same time, in order to ensure that the discharged waste water cannot flow back into the dishwasher, a one-way valve is often set to prevent the fluid from flowing back. However, in actual applications, due to the influence of unstable pressure or sudden flow rate in the pipeline system, the one-way valve has a poor effect in preventing backflow, and problems such as failure to seal, leakage, and backflow often occur. As a result, after the dishwasher has drained the water, there will be a small amount of residual water in the water cup, which is prone to breed bacteria and produce odor for a long time, which not only poses a safety hazard to food, but also affects the user experience. Utility Model Content

[0003] Based on this, it is necessary to provide a drainage structure and a washing device to address the problem that the one-way valve installed in the drainage assembly of some dishwashers on the market has poor backflow prevention effect, resulting in a small amount of residual water in the water cup after the dishwasher has drained the water.

[0004] A drainage structure comprises: a shell assembly, wherein the shell assembly is provided with a connected liquid collecting chamber and a liquid passing chamber; a pipe assembly, wherein one end of the pipe assembly is connected to the shell assembly, the liquid passing chamber is connected to the pipe assembly to form a drainage channel, and the drainage channel is connected to the outside at one end away from the liquid passing chamber; a drainage pump, wherein the drainage pump comprises an impeller, wherein the impeller is rotatably arranged in the liquid passing chamber to drive the liquid in the liquid collecting chamber to be discharged to the outside through the drainage channel; an opening and closing device, wherein the opening and closing device comprises a plugging part and a driving assembly, wherein the plugging part is movably arranged in the pipe assembly and has at least an open position and a closed position, wherein the plugging part can open the drainage channel when in the open position, and can close the drainage channel when in the closed position, and wherein the driving assembly is transmission-connected to the plugging part to drive the plugging part to switch between the open position and the closed position.

[0005] The present application provides a drainage structure, when the washing work of the washing device is completed, the opening and closing device can be opened so that the sealing part is in an open position to open the drainage channel, and the drainage pump can be started to pump the washing waste water collected in the liquid collecting chamber to the outside through the drainage channel for drainage; after the drainage is completed, the opening and closing device and the drainage pump will be closed in sequence, the opening and closing device is closed so that the sealing part is in a closed position, and the sealing part is sealed and connected with the inner wall of the drainage channel to close the drainage channel, so that when the drainage pump is shut down and the driving force disappears, the residual water in the drainage channel will not be able to flow back to the liquid collecting chamber, thereby ensuring that the liquid collecting chamber can remain dry, effectively preventing bacteria growth and odor generation.

[0006] In one embodiment, the pipeline assembly includes a first drain pipe, which is a three-way pipe. The first drain pipe is connected to the shell assembly, and two ends of the first drain pipe respectively form a water inlet and a water outlet. The liquid chamber, the water inlet and the water outlet are connected in sequence to form the drainage channel. The first drain pipe is located between the water inlet and the water outlet and is provided with an installation port connected to the drainage channel. The blocking part is movably arranged in the first drain pipe, and the driving assembly is arranged outside the first drain pipe. The output end of the driving assembly extends into the first drain pipe through the installation port and is connected to the blocking part to drive the blocking part to approach or move away from the drainage channel. When the blocking part is in the closed position, the blocking part is sealed and connected to the inner wall of the drainage channel to interrupt the connection between the water inlet and the water outlet. By adopting the above structure, the sealing part can move between the installation port and the drainage channel. When the sealing part enters the drainage channel and is sealed and connected with the inner wall of the drainage channel, the drainage channel is closed, thereby ensuring that after the drainage pump is shut down and the driving force disappears, the residual water in the drainage channel will not be able to flow back into the liquid collecting chamber.

[0007] In one embodiment, the first drain pipe includes a main pipe and a side pipe, the side pipe is arranged on the peripheral side of the main pipe, the two ends of the main pipe form the water inlet and the installation port respectively, the side pipe is provided with the water outlet, the blocking part is movably arranged in the main pipe, the blocking part can reciprocate along the length direction of the main pipe, when the blocking part is in the closed position, the blocking part is sealed and connected with the water inlet or the water outlet of the liquid passage chamber to block the water inlet or the water outlet of the liquid passage chamber. By adopting the above structure, the blocking part reciprocates between the water inlet and the installation port along the length direction of the main pipe under the drive of the driving component, the end of the blocking part away from the driving component is opposite to the front of the water inlet or the water outlet of the liquid passage chamber, so that when the blocking part moves to the closed position, the driving component applies pressure to the blocking part to ensure that the blocking part is in close contact with the water inlet or the water outlet of the liquid passage chamber, ensuring good sealing and effectively preventing the liquid in the fluid channel from flowing back.

[0008] In one embodiment, a valve assembly is further included, and the valve assembly is arranged at the water outlet, and the valve assembly is used to open and close the water outlet. The arrangement of the valve assembly can prevent residual water or foreign matter in the second drain pipe from entering the main pipe, thereby effectively preventing the main pipe from being blocked and affecting the telescopic activity of the blocking part.

[0009] In one embodiment, the pipeline assembly further includes a second drain pipe, and the second drain pipe is sleeved with one end of the first drain pipe having a water outlet, and the water outlet is connected to the outside through the second drain pipe.

[0010] In one embodiment, the opening and closing device further comprises a flexible sealing portion, the flexible sealing portion is provided with a through hole, the two ends of the flexible sealing portion are respectively sealed and connected to the blocking portion and the installation port, the flexible sealing portion can be folded or opened along the length direction, and the output end of the drive component extends into the through hole through the installation port and is connected to the blocking portion. By adopting the above structure, the setting of the flexible sealing portion can effectively separate the drive component and the inner cavity of the pipeline component to form a waterproof effect, and at the same time, the output end of the drive component can extend into the flexible sealing portion and be connected to the blocking portion, and the flexible sealing portion can be folded and opened, thereby ensuring that the drive component can effectively drive the blocking portion to perform telescopic activities while reducing the risk of water ingress, thereby ensuring that the opening and closing device can work stably.

[0011] In one embodiment, a positioning plate is formed at one end of the inner wall of the through hole close to the blocking part, and the positioning plate is provided with a positioning hole, the positioning hole is arranged opposite to the blocking part, and the output end of the driving component passes through the positioning hole and is connected to the blocking part. The positioning hole can form a positioning effect, and the cooperation between the positioning hole and the output end of the driving component can ensure that the flexible sealing part will not be tilted and the movement direction of the blocking part will not be offset, so as to ensure that when the blocking part is in the closed position, the blocking part and the inner wall of the drainage channel can be effectively sealed and connected.

[0012] In one embodiment, a center line of the positioning hole overlaps with a center line of the blocking portion.

[0013] In one embodiment, the first drain pipe is provided with a first mounting groove at one end away from the water inlet, the bottom wall of the first mounting groove is provided with the mounting port, at least part of the driving assembly is provided in the first mounting groove, and a flange is formed at one end of the flexible sealing portion away from the blocking portion, and the two sides of the flange are respectively against the bottom wall of the first mounting groove and the driving assembly. By adopting the above structure, the first drain pipe is provided with a first mounting groove for installing the driving assembly, which can facilitate the rapid positioning and assembly of the driving assembly, and at the same time, the driving assembly cooperates with the bottom wall of the first mounting groove to clamp the flange of the flexible sealing portion, thereby ensuring a sealed connection between the flexible sealing portion and the mounting port, which is not easy to leak.

[0014] In one embodiment, a second mounting groove is provided at one end of the first drain pipe close to the liquid passage cavity, the water inlet is provided at the bottom wall of the second mounting groove, a liquid outlet column is formed on the housing assembly, the liquid outlet column is provided with a liquid passage hole connecting the liquid passage cavity and the water inlet, and the liquid outlet column is adapted to be installed in the second mounting groove. By adopting the above structure, the first drain pipe is provided with a second mounting groove for adapting and connecting with the liquid outlet column, which can facilitate the rapid positioning and assembly of the first drain pipe.

[0015] In one embodiment, a sealing ring is further included, and the sealing ring is sleeved on the outer peripheral wall of the liquid outlet column, and the outer peripheral wall of the sealing ring abuts against the inner side wall of the second installation groove. The sealing ring is provided to improve the sealing performance of the connection between the first drain pipe and the liquid outlet column, and prevent the liquid in the liquid cavity from flowing out through the gap at the connection to the outside, causing the environment around the device to be humid, thereby affecting the user experience.

[0016] In one embodiment, the driving assembly includes a first motor and a telescopic rod, the first motor is arranged outside the pipe assembly, one end of the telescopic rod is drivingly connected to the output end of the first motor, and the other end of the telescopic rod is connected to the blocking part, and the telescopic rod is configured to be able to perform telescopic movement along the length direction under the drive of the first motor to drive the blocking part to move between the closed position and the open position. By adopting the above structure, when the first motor drives the telescopic rod to perform telescopic movement, the telescopic rod will drive the blocking part to move in the pipe assembly, so that it can switch between the open position and the closed position, and when the blocking part is in the closed position, the telescopic rod applies pressure to the blocking part to ensure that the blocking part is in close contact with the inner wall of the drainage channel to ensure a good seal.

[0017] In one embodiment, the first motor is a telescopic motor.

[0018] In one of the embodiments, the drive assembly further includes a mounting shell, the mounting shell is disposed outside the pipeline assembly, and the first motor is disposed in the mounting shell.

[0019] In one embodiment, a control component is further included, the control component is electrically connected to the opening and closing device and the drainage pump, and the control component is used to control the opening and closing device and the drainage pump to be closed successively when drainage is completed. By setting the control component, the automatic coordination control of the opening and closing device and the drainage pump can be realized, thereby simplifying manual operation.

[0020] In one embodiment, the bottom of the liquid collecting chamber is provided with an opening connected to the liquid passing chamber, and a grid is provided at the opening. By setting the grid, when the liquid in the liquid collecting chamber flows to the liquid passing chamber through the opening, solid debris such as food residues can be blocked to avoid damage to the impeller.

[0021] In one embodiment, the drainage pump further includes a second motor, the second motor is disposed on the housing assembly, and an output end of the second motor is connected to the central axis of the impeller.

[0022] A second aspect of the present application discloses a washing device.

[0023] A washing device comprises: a machine body, the machine body is provided with a washing chamber; the above-mentioned drainage structure, the drainage structure is arranged at the bottom of the machine body, and the washing chamber is connected with the liquid collecting chamber. The washing device disclosed in the second aspect of the present application, by setting any of the above-mentioned drainage structures, is provided with an opening and closing device that can be used to open or close the drainage channel. When the washing work of the washing device is completed, the washing water in the washing chamber will be collected in the liquid collecting chamber under the action of gravity, and the opening and closing device and the drainage pump are started, so that the washing waste water can be pumped to the outside through the drainage channel for discharge; after the drainage is completed, the opening and closing device and the drainage pump will be closed in sequence, and the closing of the opening and closing device makes the sealing part and the inner wall of the drainage channel sealed and connected to close the drainage channel, so that when the drainage pump is shut down and the driving force disappears, the residual water in the drainage channel will not be able to flow back to the liquid collecting chamber, thereby ensuring that the water collecting chamber and the washing chamber can remain dry, effectively preventing bacteria from breeding and odor generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional diagram of a drainage structure according to an embodiment;

[0025] Figure 2 An exploded view of a drainage structure according to an embodiment;

[0026] Figure 3 is a cross-sectional view of a drainage structure according to an embodiment;

[0027] Figure 4 for Figure 3 A magnified view of region A;

[0028] Figure 5It is a schematic diagram of the installation of a pipeline assembly and a valve body assembly according to an embodiment;

[0029] Figure 6 is a first stereoscopic view of a first drain pipe in one embodiment;

[0030] Figure 7 A second perspective view of a first drain pipe according to one embodiment.

[0031] The corresponding relationship between the reference numerals and the component names is as follows:

[0032] 1 shell assembly, 101 liquid collecting chamber, 102 liquid passing chamber, 103 liquid passing hole, 104 opening, 11 liquid outlet column, 12 grid;

[0033] 2 Pipeline assembly, 201 water inlet, 202 water outlet, 203 installation port, 204 first installation slot, 205 second installation slot, 21 first drain pipe, 211 main pipe, 212 side pipe, 22 second drain pipe;

[0034] 3 drainage pump, 31 impeller, 32 second motor;

[0035] 4 opening and closing device, 401 through hole, 402 positioning hole, 41 blocking portion, 42 driving assembly, 421 first motor, 422 telescopic rod, 423 mounting shell, 43 flexible sealing portion, 431 positioning plate, 432 flange;

[0036] 5. Valve body assembly;

[0037] 6 Sealing ring. DETAILED DESCRIPTION

[0038] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0040] The drainage structures according to some embodiments of the present invention will be described below with reference to the accompanying drawings.

[0041] like Figures 1 to 4As shown, the present embodiment discloses a drainage structure, comprising: a shell component 1, wherein the shell component 1 is provided with a connected liquid collecting chamber 101 and a liquid passing chamber 102; a pipe component 2, wherein one end of the pipe component 2 is connected to the shell component 1, and the liquid passing chamber 102 is connected to the pipe component 2 to form a drainage channel, and the end of the drainage channel away from the liquid passing chamber 102 is connected to the outside; a drainage pump 3, wherein the drainage pump 3 comprises an impeller 31, and the impeller 31 is rotatably arranged in the liquid passing chamber 102 to drive the liquid in the liquid collecting chamber 101 to be discharged to the outside through the drainage channel; an opening and closing device 4, wherein the opening and closing device 4 comprises a blocking portion 41 and a driving component 42, wherein the blocking portion 41 is movably arranged in the pipe component 2 and has at least an open position and a closed position, wherein the blocking portion 41 can open the drainage channel when it is in the open position, and can close the drainage channel when it is in the closed position, and the driving component 42 is transmission-connected to the blocking portion 41 to drive the blocking portion 41 to switch between the open position and the closed position.

[0042] The present application provides a drainage structure. When the washing work of the washing device is completed, the opening and closing device 4 can be opened so that the sealing part 41 is in an open position to open the drainage channel, and the drainage pump 3 is started to pump the washing waste water collected in the liquid collecting chamber 101 to the outside through the drainage channel for drainage; after the drainage is completed, the opening and closing device 4 and the drainage pump 3 will be closed in sequence, and the opening and closing device 4 is closed so that the sealing part 41 is in a closed position. The sealing part 41 is sealed and connected to the inner wall of the drainage channel to close the drainage channel, so that when the drainage pump 3 is shut down and the driving force disappears, the residual water in the drainage channel will not be able to flow back into the liquid collecting chamber 101, thereby ensuring that the liquid collecting chamber 101 can remain dry, effectively preventing bacteria growth and odor generation.

[0043] like Figures 3 to 7As shown, in addition to the features of the above embodiments, this embodiment further defines that: the pipeline assembly 2 includes a first drain pipe 21, the first drain pipe 21 is a three-way pipe, the first drain pipe 21 is connected to the shell assembly 1, and the two ends of the first drain pipe 21 respectively form a water inlet 201 and a water outlet 202, the liquid chamber 102, the water inlet 201 and the water outlet 202 are connected in sequence to form a drainage channel, the first drain pipe 21 is located between the water inlet 201 and the water outlet 202. The installation port 203 for connecting the drainage channel is provided, the plugging part 41 is movably arranged in the first drain pipe 21, the driving assembly 42 is arranged outside the first drain pipe 21, and the output end of the driving assembly 42 extends into the first drain pipe 21 through the installation port 203 and is connected to the plugging part 41 to drive the plugging part 41 to approach or move away from the drainage channel. When the plugging part 41 is in the closed position, the plugging part 41 is sealed and connected to the inner wall of the drainage channel, so that the connection between the water inlet 201 and the water outlet 202 is interrupted. By adopting the above structure, the blocking portion 41 can move between the installation port 203 and the drainage channel. When the blocking portion 41 enters the drainage channel and is sealed and connected with the inner wall of the drainage channel, the drainage channel is closed, thereby ensuring that after the drainage pump 3 is shut down and the driving force disappears, the residual water in the drainage channel will not be able to flow back into the liquid collecting chamber 101.

[0044] like Figures 3 to 7 As shown, in addition to the features of the above-mentioned embodiments, the present embodiment further defines that: the first drain pipe 21 includes a main pipe 211 and a side pipe 212, the side pipe 212 is arranged on the peripheral side of the main pipe 211, the two ends of the main pipe 211 respectively form a water inlet 201 and a mounting port 203, the side pipe 212 is provided with a water outlet 202, the blocking portion 41 is movably arranged in the main pipe 211, the blocking portion 41 can reciprocate along the length direction of the main pipe 211, and when the blocking portion 41 is in the closed position, the blocking portion 41 is sealed and connected with the water inlet 201 or the water outlet end of the liquid chamber 102 to block the water inlet 201 or the water outlet end of the liquid chamber 102. By adopting the above structure, the sealing part 41 reciprocates between the water inlet 201 and the installation port 203 along the length direction of the main pipe 211 under the drive of the driving component 42, and the end of the sealing part 41 away from the driving component 42 is opposite to the water inlet 201 or the water outlet end of the liquid chamber 102, so that when the sealing part 41 moves to the closed position, the driving component 42 applies pressure to the sealing part 41 to ensure that the sealing part 41 is tightly abutted against the water inlet 201 or the water outlet end of the liquid chamber 102, thereby ensuring a good seal and effectively preventing the liquid in the fluid channel from flowing back.

[0045] like Figure 3 and Figure 5As shown, in addition to the features of the above embodiment, this embodiment is further defined as follows: it also includes a valve body assembly 5, which is arranged at the water outlet 202 and is used to open and close the water outlet 202. The arrangement of the valve body assembly 5 can prevent residual water or foreign matter in the second drain pipe 22 from entering the main pipe 211, thereby effectively preventing the main pipe 211 from being blocked and affecting the telescopic activity of the blocking portion 41.

[0046] like Figure 3 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the pipe assembly 2 also includes a second drain pipe 22, and the second drain pipe 22 is socketed with one end of the first drain pipe 21 having a water outlet 202, and the water outlet 202 is connected to the outside through the second drain pipe 22.

[0047] like Figures 2 to 4 As shown, in addition to the features of the above embodiment, this embodiment further defines that: the opening and closing device 4 also includes a flexible sealing portion 43, the flexible sealing portion 43 is provided with a through hole 401, the two ends of the flexible sealing portion 43 are respectively sealed and connected with the blocking portion 41 and the installation port 203, the flexible sealing portion 43 can be folded or opened along the length direction, and the output end of the driving component 42 extends into the through hole 401 through the installation port 203 and is connected with the blocking portion 41. By adopting the above structure, the setting of the flexible sealing portion 43 can effectively separate the driving component 42 from the inner cavity of the pipeline component 2 to form a waterproof effect, and at the same time, the output end of the driving component 42 can extend into the flexible sealing portion 43 to be connected with the blocking portion 41, and the flexible sealing portion 43 can be folded and opened, thereby ensuring that the driving component 42 can effectively drive the blocking portion 41 to perform telescopic activities while reducing the risk of water ingress, thereby ensuring that the opening and closing device 4 can work stably.

[0048] like Figure 3 and Figure 4 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: a positioning plate 431 is formed at one end of the inner wall of the through hole 401 close to the blocking portion 41, and the positioning plate 431 is provided with a positioning hole 402, the positioning hole 402 is arranged opposite to the blocking portion 41, and the output end of the driving component 42 passes through the positioning hole 402 and is connected to the blocking portion 41. The positioning hole 402 can be arranged to form a positioning effect, and the cooperation between the positioning hole 402 and the output end of the driving component 42 can ensure that the flexible sealing portion 43 will not be tilted and the movement direction of the blocking portion 41 will not be offset, so as to ensure that when the blocking portion 41 is in the closed position, the blocking portion 41 and the inner wall of the drainage channel can be effectively sealed and connected.

[0049] like Figure 4 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the center line of the positioning hole 402 overlaps with the center line of the blocking portion 41 .

[0050] like Figure 4 and Figure 7 As shown, in addition to the features of the above embodiment, this embodiment further defines that: a first installation groove 204 is provided at one end of the first drain pipe 21 away from the water inlet 201, a mounting opening 203 is provided at the bottom wall of the first installation groove 204, at least part of the drive assembly 42 is disposed in the first installation groove 204, a flange 432 is formed at one end of the flexible sealing portion 43 away from the blocking portion 41, and the two sides of the flange 432 are respectively against the bottom wall of the first installation groove 204 and the drive assembly 42. By adopting the above structure, the first drain pipe 21 is provided with the first installation groove 204 for installing the drive assembly 42, which can facilitate the rapid positioning and assembly of the drive assembly 42, and at the same time, the drive assembly 42 cooperates with the bottom wall of the first installation groove 204 to clamp the flange 432 of the flexible sealing portion 43, thereby ensuring a sealed connection between the flexible sealing portion 43 and the mounting opening 203, and not easy to leak.

[0051] like Figure 3 and Figure 6 As shown, in addition to the features of the above embodiment, this embodiment further defines that: a second mounting groove 205 is provided at one end of the first drain pipe 21 close to the liquid chamber 102, a water inlet 201 is provided at the bottom wall of the second mounting groove 205, a liquid outlet column 11 is formed on the housing assembly 1, the liquid outlet column 11 is provided with a liquid hole 103 connecting the liquid chamber 102 and the water inlet 201, and the liquid outlet column 11 is adapted to be installed in the second mounting groove 205. By adopting the above structure, the first drain pipe 21 is provided with the second mounting groove 205 for adapting and connecting with the liquid outlet column 11, which can facilitate the rapid positioning and assembly of the first drain pipe 21.

[0052] like Figures 2 to 4 As shown, in addition to the features of the above-mentioned embodiment, this embodiment is further defined as follows: it also includes a sealing ring 6, which is sleeved on the outer peripheral wall of the liquid outlet column 11, and the outer peripheral wall of the sealing ring 6 abuts against the inner side wall of the second installation groove 205. By setting the sealing ring 6, the sealing performance of the connection between the first drain pipe 21 and the liquid outlet column 11 can be improved, preventing the liquid in the liquid cavity 102 from flowing out to the outside through the gap at the connection, causing the environment around the device to be humid, and affecting the user experience.

[0053] like Figure 3 and Figure 4As shown, in addition to the features of the above embodiment, this embodiment further defines that: the driving assembly 42 includes a first motor 421 and a telescopic rod 422, the first motor 421 is arranged outside the pipe assembly 2, one end of the telescopic rod 422 is connected to the output end of the first motor 421, and the other end of the telescopic rod 422 is connected to the blocking portion 41, and the telescopic rod 422 is configured to be able to perform telescopic movement along the length direction under the drive of the first motor 421, so as to drive the blocking portion 41 to move between the closed position and the open position. By adopting the above structure, when the first motor 421 drives the telescopic rod 422 to perform telescopic movement, the telescopic rod 422 will drive the blocking portion 41 to move in the pipe assembly 2, so that it can switch between the open position and the closed position, and when the blocking portion 41 is in the closed position, the telescopic rod 422 applies pressure to the blocking portion 41 so as to ensure that the blocking portion 41 is in close contact with the inner wall of the drainage channel to ensure good sealing.

[0054] In addition to the features of the above embodiments, this embodiment further defines that: the first motor 421 is a telescopic motor.

[0055] like Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the drive assembly 42 also includes a mounting shell 423 , the mounting shell 423 is arranged outside the pipeline assembly 2 , and the first motor 421 is arranged in the mounting shell 423 .

[0056] In addition to the features of the above embodiment, the present embodiment further defines: further comprising a control component, the control component being electrically connected to the opening and closing device 4 and the drainage pump 3 respectively, and the control component being used to control the opening and closing device 4 and the drainage pump 3 to be closed successively when drainage is completed. By setting the control component, the automatic coordination control of the opening and closing device 4 and the drainage pump 3 can be realized, thereby simplifying manual operation.

[0057] like Figure 3 As shown, in addition to the features of the above embodiment, this embodiment further defines that: the bottom of the liquid collecting chamber 101 is provided with an opening 104 connected to the liquid passing chamber 102, and a grid 12 is provided at the opening 104. Through the provision of the grid 12, when the liquid in the liquid collecting chamber 101 flows to the liquid passing chamber 102 through the opening 104, solid debris such as food residues can be blocked to avoid damage to the impeller 31.

[0058] like Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the drainage pump 3 also includes a second motor 32, the second motor 32 is arranged on the housing assembly 1, and the output end of the second motor 32 is connected to the central axis of the impeller 31.

[0059] A second aspect of the present application discloses a washing device.

[0060] This embodiment discloses a washing device, including: a machine body, the machine body is provided with a washing chamber; the above-mentioned drainage structure, the drainage structure is arranged at the bottom of the machine body, and the washing chamber is connected with the liquid collecting chamber 101. The washing device disclosed in the second aspect of the present application, by setting any of the above-mentioned drainage structures, is provided with an opening and closing device 4 that can be used to open or close the drainage channel. When the washing work of the washing device is completed, the washing water in the washing chamber will be collected in the liquid collecting chamber 101 under the action of gravity, and the opening and closing device 4 and the drainage pump 3 are started, so that the washing wastewater can be pumped to the outside through the drainage channel for discharge; after the drainage is completed, the opening and closing device 4 and the drainage pump 3 will be closed in sequence, and the closing of the opening and closing device 4 makes the sealing part 41 and the inner wall of the drainage channel sealed and connected to close the drainage channel, so that when the drainage pump 3 is shut down and the driving force disappears, the residual water in the drainage channel will not be able to flow back to the liquid collecting chamber 101, thereby ensuring that the water collecting chamber and the washing chamber can remain dry, effectively preventing bacteria from growing and odors from being generated.

[0061] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A drainage structure, characterized in that: include: A shell assembly (1), wherein the shell assembly (1) is provided with a liquid collecting chamber (101) and a liquid passing chamber (102) that are connected to each other; A pipe assembly (2), one end of the pipe assembly (2) being connected to the housing assembly (1), the liquid passage cavity (102) being connected to the pipe assembly (2) to form a drainage channel, and one end of the drainage channel away from the liquid passage cavity (102) being connected to the outside; A drainage pump (3), the drainage pump (3) comprising an impeller (31), the impeller (31) being rotatably disposed in the liquid passage chamber (102) to drive the liquid in the liquid collection chamber (101) to be discharged to the outside through the drainage channel; An opening and closing device (4), the opening and closing device (4) comprising a blocking portion (41) and a driving assembly (42); the blocking portion (41) is movably arranged in the pipe assembly (2) and has at least an open position and a closed position; the blocking portion (41) can open the drainage channel when it is in the open position, and can close the drainage channel when it is in the closed position; the driving assembly (42) is transmission-connected to the blocking portion (41) to drive the blocking portion (41) to switch between the open position and the closed position.

2. The drainage structure according to claim 1, characterized in that: The pipeline assembly (2) comprises a first drain pipe (21), the first drain pipe (21) being a three-way pipe, the first drain pipe (21) being connected to the shell assembly (1), the two ends of the first drain pipe (21) forming a water inlet (201) and a water outlet (202), respectively, the liquid passage cavity (102), the water inlet (201) and the water outlet (202) being connected in sequence to form the drainage channel, the first drain pipe (21) being provided with an installation opening (203) connected to the drainage channel at a position between the water inlet (201) and the water outlet (202), The blocking portion (41) is movably arranged in the first drain pipe (21), and the driving component (42) is arranged outside the first drain pipe (21). The output end of the driving component (42) extends into the first drain pipe (21) through the installation opening (203) and is connected to the blocking portion (41) to drive the blocking portion (41) to move closer to or away from the drainage channel. When the blocking portion (41) is in the closed position, the blocking portion (41) is sealed and connected to the inner wall of the drainage channel, so that the connection between the water inlet (201) and the water outlet (202) is interrupted.

3. The drainage structure according to claim 2, characterized in that: The first drain pipe (21) comprises a main pipe (211) and a side pipe (212); the side pipe (212) is arranged on the circumference of the main pipe (211); the two ends of the main pipe (211) respectively form the water inlet (201) and the installation port (203); the side pipe (212) is provided with the water outlet (202); the blocking portion (41) is movably arranged in the main pipe (211); the blocking portion (41) can reciprocate along the length direction of the main pipe (211); when the blocking portion (41) is in the closed position, the blocking portion (41) is sealed and connected to the water inlet (201) or the water outlet end of the liquid passage chamber (102) to block the water inlet (201) or the water outlet end of the liquid passage chamber (102); and / or It also comprises a valve body assembly (5), wherein the valve body assembly (5) is arranged at the water outlet (202), and the valve body assembly (5) is used to open and close the water outlet (202); and / or The pipeline assembly (2) further comprises a second drain pipe (22), the second drain pipe (22) being sleeved with one end of the first drain pipe (21) having a water outlet (202), the water outlet (202) being connected to the outside through the second drain pipe (22).

4. The drainage structure according to claim 2, characterized in that: The opening and closing device (4) further comprises a flexible sealing portion (43), wherein the flexible sealing portion (43) is provided with a through hole (401), and the two ends of the flexible sealing portion (43) are respectively sealedly connected to the blocking portion (41) and the mounting opening (203), and the flexible sealing portion (43) can be folded or opened along the length direction, and the output end of the driving component (42) extends into the through hole (401) through the mounting opening (203) and is connected to the blocking portion (41).

5. The drainage structure according to claim 4, characterized in that: A positioning plate (431) is formed on one end of the inner wall of the through hole (401) close to the blocking portion (41), the positioning plate (431) is provided with a positioning hole (402), the positioning hole (402) is arranged opposite to the blocking portion (41), and the output end of the driving component (42) passes through the positioning hole (402) and is connected to the blocking portion (41); and / or A first mounting groove (204) is provided at one end of the first drain pipe (21) away from the water inlet (201); the bottom wall of the first mounting groove (204) is provided with the mounting port (203); at least a portion of the driving assembly (42) is arranged in the first mounting groove (204); a flange (432) is formed at one end of the flexible sealing portion (43) away from the blocking portion (41); two sides of the flange (432) respectively abut against the bottom wall of the first mounting groove (204) and the driving assembly (42).

6. The drainage structure according to claim 2, characterized in that: A second mounting groove (205) is provided at one end of the first drain pipe (21) close to the liquid passage chamber (102); the water inlet (201) is provided on the bottom wall of the second mounting groove (205); a liquid outlet column (11) is formed on the shell assembly (1); the liquid outlet column (11) is provided with a liquid passage hole (103) connecting the liquid passage chamber (102) and the water inlet (201); and the liquid outlet column (11) is adapted to be installed in the second mounting groove (205).

7. The drainage structure according to claim 6, characterized in that: It also comprises a sealing ring (6), wherein the sealing ring (6) is sleeved on the outer peripheral wall of the liquid outlet column (11), and the outer peripheral wall of the sealing ring (6) abuts against the inner side wall of the second installation groove (205).

8. The drainage structure according to claim 1, characterized in that: The driving assembly (42) comprises a first motor (421) and a telescopic rod (422); the first motor (421) is arranged outside the pipeline assembly (2); one end of the telescopic rod (422) is drivingly connected to the output end of the first motor (421); the other end of the telescopic rod (422) is connected to the blocking portion (41); the telescopic rod (422) is configured to be able to perform telescopic movement along the length direction under the drive of the first motor (421) to drive the blocking portion (41) to move between the closed position and the open position.

9. The drainage structure according to any one of claims 1 to 8, characterized in that: It also includes a control component, which is electrically connected to the opening and closing device (4) and the drainage pump (3) respectively, and is used to control the opening and closing device (4) and the drainage pump (3) to be closed successively when drainage is completed; and / or The bottom of the liquid collecting chamber (101) is provided with an opening (104) communicating with the liquid passing chamber (102), and a grid (12) is provided at the opening (104); and / or The drainage pump (3) further comprises a second motor (32), wherein the second motor (32) is arranged on the housing assembly (1), and an output end of the second motor (32) is connected to the central axis of the impeller (31).

10. A washing device, characterized in that: include: A machine body, wherein the machine body is provided with a washing chamber; The drainage structure according to any one of claims 1 to 9, wherein the drainage structure is arranged at the bottom of the machine body, and the washing chamber is connected to the liquid collecting chamber (101).

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