Overflow drainage structure of cleaning machine

Abstract

The utility model relates to an overflow drainage structure of a cleaning machine, which comprises a valve pump assembly comprising a drainage valve shell connected with a drainage port of a washing cavity of the cleaning machine, a drainage pump used for providing water suction and drainage power, and a drainage valve used for controlling whether the drainage valve shell is communicated with the drainage pump or not; the water pan is arranged below the valve pump assembly; the drainage valve shell comprises a first cavity and a second cavity which are communicated with each other, the drainage valve is arranged on the side portion of the drainage valve shell and used for controlling whether the first cavity is communicated with the second cavity or not, the second cavity is connected with the drainage pipe, and the drainage pump is partially arranged in the second cavity and used for providing drainage power. A water guide pipe extending downwards is arranged at the bottom of the second cavity, the lower end of the water guide pipe is arranged close to the water pan, and a one-way valve which can be opened under the suction and drainage force of the drainage pump in the state that the first cavity and the second cavity are separated is arranged in the water guide pipe. Overflowed water can be drained away in time, so that the water leakage problem of the cleaning machine is solved, and the user experience feeling is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dishwashers, in particular to an overflow drainage structure of a washing machine. Background Art

[0002] At present, dishwashers have become a relatively common household appliance.

[0003] Chinese utility model patent ZL202220121665.8 "An overflow structure of a dishwasher" discloses a structure, including an inner door, an inner tank chassis, a middle front cross bar and a base, a sealed gap is provided between the inner door and the inner tank chassis, the sealed gap is connected to the cavity in the inner tank, an overflow groove is provided on the inner tank chassis, the overflow groove is connected to the sealed gap, a first drainage groove is provided on the middle front cross bar, a second drainage groove and a chassis are provided on the base, the first drainage groove is connected to the overflow groove and the second drainage groove respectively, and an alarm device is provided on the chassis. The above structure utilizes the original inner tank chassis, middle front cross bar and base of the dishwasher, by arranging an overflow groove on the inner tank chassis, a drainage groove on the middle front cross bar, and a drainage groove, a chassis and an alarm device on the base. When the water level in the dishwasher cavity is too high, the excess water overflows through the sealed gap, and then flows to the chassis through the overflow groove and the drainage groove. When the chassis reaches a certain amount of water, the alarm device alarms, so that the dishwasher is forced to discharge all the water in the cavity.

[0004] The water in the cavity of the above-mentioned dishwasher can be drained away, but the water that reaches the bottom plate gathers and easily flows into the cabinet or the ground, which may make the user mistakenly believe that the machine is leaking, seriously affecting the user experience. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an overflow drainage structure of a washing machine which can drain overflow water in time to solve the water leakage problem and improve the user experience in view of the current status of the prior art.

[0006] The technical solution adopted by the utility model to solve the above technical problems is:

[0007] An overflow drainage structure of a cleaning machine, comprising:

[0008] The valve pump assembly includes a drain valve housing connected to the drain port of the washing chamber of the cleaning machine, a drain pump for providing suction and drainage power, and a drain valve for controlling whether the drain valve housing is connected to the drain pump;

[0009] A water receiving tray, arranged below the valve pump assembly;

[0010] The drain valve housing includes a first cavity and a second cavity which are interconnected. The drain valve is arranged on the side of the drain valve housing and is used to control whether the first cavity is connected to the second cavity. The second cavity is connected to a drain pipe. The drain pump is partially arranged in the second cavity and is used to provide drainage power. The drain valve housing is provided with a water guide pipe extending downward. The lower end of the water guide pipe is arranged close to the water receiving tray. The water guide pipe is provided with a one-way valve which can be opened under the suction and discharge force of the drain pump when the first cavity and the second cavity are separated.

[0011] Preferably, the upper surface of the water receiving tray is partially concave to form a water storage tank, and the lower end of the water guide pipe extends into the water storage tank. The above structure is used to facilitate draining all the water in the water storage tank.

[0012] Preferably, the one-way valve comprises a plug and an elastic member, the inner diameter of the middle part of the water pipe is increased to form a matching cavity, the plug is arranged in the matching cavity so as to be movable up and down, and the elastic member is arranged in the matching cavity and located above the plug, so that the plug always keeps a tendency to move downward and close the opening at the lower end of the water pipe. The one-way valve structure is adopted to switch the state between the drainage of the cleaning machine and the drainage of the water storage tank.

[0013] Preferably, the bottom of the first cavity is closed and connected to a water channel extending outward near the side wall, the second cavity is connected to the side of the water channel, and the drain valve is arranged in the water channel so as to be movable laterally and is used to control whether the first cavity is connected to the second cavity. The above structure facilitates the connection or isolation of the first cavity and the second cavity.

[0014] Preferably, the water guide pipe is connected to the bottom of the water guide channel and arranged near the outer end of the water guide channel. When the drain valve connects the first cavity with the second cavity, the water guide channel section connected by the water guide pipe is isolated from the second cavity. When the drain valve isolates the first cavity from the second cavity, the water guide channel section connected by the water guide pipe is connected to the second cavity. With the above structure, the drainage of the cleaning machine and the drainage of the water storage tank do not interfere with each other.

[0015] Preferably, the second cavity extends outward, the drainage pump is arranged at the end of the second cavity, the impeller at the first end of the drainage pump is located in the second cavity, and the power part of the drainage pump is located outside the second cavity.

[0016] Preferably, the water receiving tray is provided with an overflow switch capable of detecting the amount of accumulated water, and the overflow switch is electrically connected to the drain valve, the drain pump and the controller of the cleaning machine. When the overflow switch detects that the amount of water in the water storage tank reaches a certain value, a signal will be sent through the controller, and the drain valve will separate the first cavity from the second cavity, and the water channel section connecting the water pipe will be connected to the second cavity. At this time, the drain pump is operated, and the one-way valve opens under the action of negative pressure, so that the water in the water storage tank is sucked into the second cavity through the water pipe and discharged through the drain pipe; if the above-mentioned overflow drainage process is started less than N times in one day, the dishwasher will not report any fault. If the overflow drainage is started more than N times in one day, an overflow alarm will be reported, and the APP will remind the user at the same time.

[0017] Preferably, an exhaust assembly is provided on the side wall of the cleaning machine, and a condensate outlet is provided at the bottom of the exhaust assembly, and the condensate outlet is connected to the water receiving tray through a condensate pipe. This structure can prevent the condensate generated by the exhaust assembly from dripping onto the ground, thereby improving the user experience.

[0018] Preferably, the water storage tank extends to the edge of the water receiving tray to form a guide groove arranged near the edge of the water receiving tray and corresponding to the outlet of the condensed water pipe. Such a structure is conducive to timely draining the condensed water generated by the exhaust assembly into the water storage tank.

[0019] Compared with the prior art, the advantages of the utility model are: the utility model is provided with a water guide pipe at the bottom of the drain valve shell, and under normal conditions, the one-way valve is closed. When the cleaning machine is draining, the drain valve connects the first cavity with the second cavity, and the drain pump runs, thereby draining the water in the washing cavity of the cleaning machine; when the cleaning machine is not in use, when there is a lot of water accumulated on the water receiving tray, the drain valve separates the first cavity from the second cavity, and at this time the water guide pipe is connected to the second cavity, and the drain pump is run. Under the suction and discharge force of the drain pump, the one-way valve opens, and the water guide pipe sucks the accumulated water on the water receiving tray into the second cavity and drains it into the drain pipe. The utility model can drain the overflow water in time, thereby solving the water leakage problem of the cleaning machine and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overflow drainage structure of an embodiment of the utility model;

[0021] Figure 2 A top view of the overflow drainage structure of the utility model embodiment;

[0022] Figure 3 This is a cross-sectional view of the overflow drainage structure of the utility model embodiment (the first cavity and the second cavity are separated);

[0023] Figure 4 for Figure 3 Another cross-sectional view of the state;

[0024] Figure 5 It is a cross-sectional view of the overflow drainage structure of an embodiment of the utility model (the first cavity and the second cavity are in communication). DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] like Figures 1 to 5 As shown, the overflow drainage structure of the cleaning machine of this embodiment includes a valve pump assembly 1 and a water receiving tray 2. The valve pump assembly 1 includes a drain valve housing 11 connected to the drain port of the washing chamber of the cleaning machine, a drain pump 12 for providing suction and drainage power, and a drain valve 13 for controlling whether the drain valve housing 11 is connected to the drain pump 12; the water receiving tray 2 is arranged under the valve pump assembly.

[0027] The drain valve housing 11 includes a first cavity 111 and a second cavity 112 which are connected to each other. The drain valve 13 is arranged on the side of the drain valve housing 11 and is used to control whether the first cavity 111 and the second cavity 112 are connected. The second cavity 112 is connected to a drain pipe 14. The drain pump 12 is partially arranged in the second cavity 112 and is used to provide drainage power. The drain valve housing 11 is provided with a water pipe 15 extending downward. The lower end of the water pipe 15 is arranged close to the water receiving tray 2. A one-way valve 3 is provided in the water pipe 15, which can be opened under the suction and discharge force of the drain pump 12 when the first cavity 111 and the second cavity 112 are separated.

[0028] The upper surface of the water receiving tray 2 is partially concave to form a water storage tank 21, and the lower end of the water guide pipe 15 extends into the water storage tank 21. With the above structure, it is convenient to drain all the water in the water storage tank 21.

[0029] The one-way valve 3 includes a plug 31 and an elastic member 32. The inner diameter of the middle part of the water pipe 15 is increased to form a matching cavity 151. The plug 31 is arranged in the matching cavity 151 so as to be movable up and down. The elastic member 32 (spring) is arranged in the matching cavity 151 and is located above the plug 31, so that the plug 31 always keeps a tendency to move downward and close the opening at the lower end of the water pipe 15. The one-way valve 3 structure is adopted to switch the state between the drainage of the cleaning machine and the drainage of the water storage tank.

[0030] The bottom of the first cavity 111 is closed and connected to a water channel 113 extending outward near the side wall, the second cavity 112 is connected to the side of the water channel 113, and the drain valve 13 is disposed in the water channel 113 and can move laterally and is used to control whether the first cavity 111 is connected to the second cavity 112. The above structure facilitates the connection or isolation of the first cavity 111 and the second cavity 112.

[0031] The water conduit 15 is connected to the bottom of the water conduit channel 113 and arranged near the outer end of the water conduit channel 113. When the drain valve 13 connects the first cavity 111 with the second cavity 112, the water conduit channel 113 section connected by the water conduit 15 is isolated from the second cavity 112. When the drain valve 13 isolates the first cavity 111 from the second cavity 112, the water conduit channel 113 section connected by the water conduit 15 is connected to the second cavity 112. With the above structure, the drainage of the cleaning machine and the drainage of the water storage tank 21 do not interfere with each other.

[0032] The second cavity 112 extends outward, the drainage pump 12 is disposed at the end of the second cavity 112 , the impeller 121 at the first end of the drainage pump 12 is located in the second cavity 112 , and the power part of the drainage pump 12 is located outside the second cavity 112 .

[0033] The water receiving tray 2 is provided with an overflow switch 22 capable of detecting the amount of accumulated water, and the overflow switch 22 is electrically connected to the drain valve 13, the drain pump 12 and the controller of the washing machine. When the overflow switch 22 detects that the amount of water in the water storage tank 21 reaches a certain value, a signal will be sent through the controller, and the drain valve 13 will separate the first cavity 111 from the second cavity 112, and the water channel 113 section connecting the water pipe 15 will be connected to the second cavity 112. At this time, the drain pump 12 is operated, and the one-way valve 3 is opened under the action of negative pressure, so that the water in the water storage tank 21 is sucked into the second cavity 112 through the water pipe 15 and discharged through the drain pipe; if the above-mentioned overflow drainage process is started less than N times in one day, the dishwasher will not report any fault. If the overflow drainage is started more than N times in one day, an overflow alarm will be reported, and the APP will remind the user at the same time.

[0034] An exhaust assembly 4 is provided on the side wall of the cleaning machine, and a condensed water outlet is provided at the bottom of the exhaust assembly 4, which is connected to the water receiving tray 2 through a condensed water pipe 41. This structure can prevent the condensed water generated by the exhaust assembly 4 from dripping onto the ground, thereby improving the user experience.

[0035] The water storage tank 21 extends toward the edge of the water receiving tray 2, forming a guide groove 211 arranged near the edge of the water receiving tray 2 and corresponding to the outlet of the condensed water pipe 41. Such a structure is conducive to timely discharge of condensed water generated by the exhaust assembly 4 into the water storage tank 21.

[0036] In this embodiment, a water guide pipe 15 is provided at the bottom of the drain valve housing 11. Under normal conditions, the one-way valve 3 is closed. When the cleaning machine is draining water, the drain valve 13 connects the first cavity 111 with the second cavity 112, and the drain pump 12 is operated to drain the water in the washing cavity of the cleaning machine. When the cleaning machine is not in use, when there is a lot of accumulated water on the water receiving tray 2, the drain valve 13 separates the first cavity 111 from the second cavity 112. At this time, the water guide pipe 15 is connected with the second cavity 112, and the drain pump 12 is operated. Under the suction and discharge force of the drain pump 12, the one-way valve 3 is opened, and the water guide pipe 15 sucks the accumulated water on the water receiving tray 2 into the second cavity 112 and drains it into the drain pipe 14. In this embodiment, the overflow water can be drained away in time, thereby solving the water leakage problem of the cleaning machine and improving the user experience.

[0037] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. An overflow drainage structure of a cleaning machine, comprising: The valve pump assembly comprises a drainage valve housing (11) connected to the drainage port of the washing chamber of the cleaning machine, a drainage pump (12) for providing suction and drainage power, and a drainage valve (13) for controlling whether the drainage valve housing (11) and the drainage pump (12) are connected. A water receiving tray (2) is arranged below the valve pump assembly; The invention is characterized in that: the drain valve housing (11) comprises a first cavity (111) and a second cavity (112) which are connected to each other; the drain valve (13) is arranged on the side of the drain valve housing (11) and is used to control whether the first cavity (111) and the second cavity (112) are connected; the second cavity (112) is connected to a drain pipe (14); the drain pump (12) is partially arranged in the second cavity (112) and is used to provide drainage power; the drain valve housing (11) is provided with a water guide pipe (15) extending downward; the lower end of the water guide pipe (15) is arranged close to the water receiving tray (2); the water guide pipe (15) is provided with a one-way valve (3) which can be opened under the suction and discharge force of the drain pump (12) when the first cavity (111) and the second cavity (112) are separated.

2. The overflow drainage structure of the cleaning machine according to claim 1, characterized in that: The upper surface of the water receiving tray (2) is partially concave to form a water storage tank (21), and the lower end of the water guide pipe (15) extends into the water storage tank (21).

3. The overflow drainage structure of the cleaning machine according to claim 1, characterized in that: The one-way valve (3) comprises a plug (31) and an elastic member (32). The inner diameter of the middle portion of the water conduit (15) is enlarged to form a matching cavity (151). The plug (31) is arranged in the matching cavity (151) so as to be movable up and down. The elastic member (32) is arranged in the matching cavity (151) and is located above the plug (31), so that the plug (31) always keeps moving downward and has a tendency to close the opening at the lower end of the water conduit (15).

4. The overflow drainage structure of a cleaning machine according to claim 1, 2 or 3, characterized in that: The bottom of the first cavity (111) is closed and connected to a water channel (113) extending outward near the side wall; the second cavity (112) is connected to the side of the water channel (113); the drain valve (13) is arranged in the water channel (113) and can move laterally and is used to control whether the first cavity (111) and the second cavity (112) are connected.

5. The overflow drainage structure of the cleaning machine according to claim 4, characterized in that: The water guide pipe (15) is connected to the bottom of the water guide channel (113) and is arranged close to the outer end of the water guide channel (113); when the drain valve (13) connects the first cavity (111) and the second cavity (112), the section of the water guide channel (113) connected to the water guide pipe (15) is isolated from the second cavity (112); when the drain valve (13) isolates the first cavity (111) and the second cavity (112), the section of the water guide channel (113) connected to the water guide pipe (15) is connected to the second cavity (112).

6. The overflow drainage structure of a cleaning machine according to claim 1, 2 or 3, characterized in that: The second cavity (112) extends outward, the drainage pump (12) is arranged at the end of the second cavity (112), the impeller at the first end of the drainage pump (12) is located in the second cavity (112), and the power part of the drainage pump (12) is located outside the second cavity (112).

7. The overflow drainage structure of a cleaning machine according to claim 1, 2 or 3, characterized in that: The water receiving tray (2) is provided with an overflow switch (22) capable of detecting the amount of accumulated water. The overflow switch (22) is electrically connected to the drain valve (13), the drain pump (12) and the controller of the cleaning machine.

8. The overflow drainage structure of a cleaning machine according to claim 2, characterized in that: An exhaust assembly (4) is provided on the side wall of the cleaning machine. A condensed water outlet is provided at the bottom of the exhaust assembly (4). The condensed water outlet is connected to the water receiving tray (2) via a condensed water pipe (41).

9. The overflow drainage structure of a cleaning machine according to claim 8, characterized in that: The water storage tank (21) extends toward the edge of the water receiving tray (2) to form a guide groove (211) arranged close to the edge of the water receiving tray (2) and corresponding to the outlet of the condensed water pipe (41).

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