Water tank device and cleaning robot

Abstract

The invention provides a water tank device and a cleaning robot, the water tank device comprises a water tank main body, a one-way valve body, a centrifugal pump, a blow-off pipeline, an anti-siphon pipeline and an electromagnetic valve, the water tank main body is provided with a sewage cavity, and the centrifugal pump communicates with a water outlet of the water tank main body and a water inlet of the one-way valve body; the blowdown pipeline is communicated with a water outlet of the one-way valve body; the blow-off pipeline is provided with a U-shaped pipe, the anti-siphon pipeline is communicated with the top of the U-shaped pipe, and the electromagnetic valve is connected with the end, away from the U-shaped pipe, of the anti-siphon pipeline and used for controlling the end, away from the U-shaped pipe, of the anti-siphon pipeline to be opened or closed. The valve core of the one-way valve body still has a one-way sealing function under the blockage of sewage impurities, so that the valve core of the one-way valve body has a self-cleaning effect in the sewage discharging process, the sealing performance of the valve core and the sealing ring is prevented from being damaged due to scratching and abrasion of the surfaces of the valve core and the sealing ring caused by the impurities, and a sewage discharging pipeline of the water tank device is prevented from being blocked or leaking water.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning robots, and in particular to a water tank device and a cleaning robot. Background Art

[0002] With the development of science and technology, cleaning robots are used in shopping malls, supermarkets, hospitals, hotels and other places. The water tank device is a part of the floor washing robot, and the cleaning robot is used to wash the floor.

[0003] In the prior art, the existing water tank device includes a water tank body, an electric two-way ball valve and a sewage pipe. The water tank body is provided with a sewage chamber for accommodating sewage; the sewage pipe is connected to the sewage chamber, and the electric two-way ball valve is arranged on the inner side of the sewage pipe. The valve core of the electric two-way ball valve rotates under the driving action to control the sealing and opening of the sewage pipe. However, since there are many impurity particles in the sewage after the cleaning operation, the valve core of the electric two-way ball valve will jam the particles into the sealing ring during the rotation process, thereby jamming the rotation of the valve core and causing blockage, and causing scratches and wear on the surface of the valve core and the sealing ring to destroy their sealing performance, resulting in blockage or leakage in the sewage pipe of the existing water tank device. Summary of the invention

[0004] The object of the present invention is to provide a water tank device and a cleaning robot, wherein a water tank body is provided with a sewage chamber for containing sewage; a one-way valve body is provided at one side of the water tank body; a centrifugal pump is provided between the water tank body and the one-way valve body, and the centrifugal pump is connected to the water outlet of the water tank body and the water inlet of the one-way valve body; a sewage pipe is provided at one side of the one-way valve body and is connected to the water outlet of the one-way valve body; a U-shaped pipe is provided in the sewage pipe, and the U-shaped pipe is provided at the upper side of the one-way valve body; an anti-siphon pipe is provided at the upper side of the U-shaped pipe and is connected to the top of the U-shaped pipe, and the anti-siphon pipe is provided at the upper side of the U-shaped pipe. The suction pipe is arranged in the up and down direction; the solenoid valve is connected to the end of the anti-siphon pipe away from the U-shaped pipe, and is used to control the opening or closing of the end of the anti-siphon pipe away from the U-shaped pipe, and the one-way valve body is used to play the on-off role of the original electric two-way ball valve, so that the valve core of the one-way valve body can still have a one-way sealing function when blocked by sewage impurities, so that the valve core of the one-way valve body can have a self-cleaning effect during the sewage discharge process, avoiding impurities causing scratches and wear on the surface of the valve core and the sealing ring to destroy its sealing performance, and preventing the sewage pipe of the water tank device from being blocked or leaking.

[0005] To achieve the above object, the present invention provides the following technical solution: a water tank device, applied to a cleaning robot, the water tank device comprising:

[0006] The water tank body is provided with a sewage cavity, and the sewage cavity is used to contain sewage;

[0007] A one-way valve body, arranged on one side of the water tank body;

[0008] A centrifugal pump is disposed between the water tank body and the one-way valve body, and the centrifugal pump is connected to the water outlet of the water tank body and the water inlet of the one-way valve body;

[0009] A sewage pipe is arranged on one side of the one-way valve body and is connected to the water outlet of the one-way valve body; the sewage pipe is provided with a U-shaped pipe, and the U-shaped pipe is arranged on the upper side of the one-way valve body;

[0010] an anti-siphon pipe, arranged on the upper side of the U-shaped pipe and connected to the top of the U-shaped pipe, the anti-siphon pipe being arranged in the up-down direction;

[0011] The solenoid valve is connected to one end of the anti-siphon pipe away from the U-shaped pipe and is used to control the opening or closing of the end of the anti-siphon pipe away from the U-shaped pipe.

[0012] Optionally, one end of the U-shaped tube is connected to the water outlet of the one-way valve body;

[0013] The water inlet of the one-way valve body is located below the water outlet of the one-way valve body;

[0014] The one-way valve body is built with a sealing ball;

[0015] When the centrifugal pump is in working condition, the sewage in the sewage chamber is driven by the centrifugal pump to enter the water inlet of the one-way valve body, and pushes the sealing ball to move upward, so that the water inlet of the one-way valve body is connected with the water outlet of the one-way valve body. At this time, the one-way valve body is in an open state.

[0016] Optionally, when the solenoid valve is in a closed state, one end of the anti-siphon pipe away from the U-shaped tube is in a closed state, and the anti-siphon pipe discharges the sewage discharged through the water outlet of the one-way valve body to the outside under the siphon action, and the sewage passes through the water outlet of the one-way valve body and the U-shaped tube in turn.

[0017] Optionally, when the solenoid valve is in an open state, one end of the anti-siphon pipe away from the U-shaped tube is in an open state, and the end of the anti-siphon pipe away from the U-shaped tube is connected to the external environment. At this time, the anti-siphon pipe does not have a siphon effect, and the sewage in the U-shaped tube flows back into the one-way valve body and cannot flow back into the sewage chamber. At this time, the one-way valve body is in a closed state, and the sealing ball blocks the water inlet of the one-way valve body.

[0018] Optionally, the anti-siphon pipe is further provided with a horizontal pipe, which is connected to the end of the U-shaped pipe and arranged along the horizontal direction, and the end of the horizontal pipe is arranged downward in a circular arc.

[0019] Optionally, a first water pipe is connected between the centrifugal pump and the water outlet of the sewage chamber, and a second water pipe is connected between the centrifugal pump and the water inlet of the one-way valve body.

[0020] Optionally, the sewage chamber includes a first chamber and a second chamber, the second chamber is located below the first chamber and connected to the first chamber; the area of ​​the first chamber is larger than the area of ​​the second chamber

[0021] The second cavity is communicated with the centrifugal pump.

[0022] Optionally, the water tank body further comprises a clean water chamber, wherein the clean water chamber and the sewage chamber are arranged at intervals and are located in the same water tank body;

[0023] The water tank device further includes a fan, a ventilation pipe and a sewage suction pipe, wherein the fan is built into the water tank body, the ventilation pipe is sealingly connected to the air suction end of the fan, the ventilation pipe passes through the clean water cavity and extends to the sewage cavity, and the ventilation pipe vacuumizes the sewage cavity under the negative pressure of the fan;

[0024] The sewage suction pipe extends in the up-down direction and is connected to the water tank body. The sewage discharge port of the sewage suction pipe is connected to the sewage chamber. The sewage inlet of the sewage suction pipe is exposed to the outside of the cleaning robot and absorbs sewage under the negative pressure of the fan and the ventilation pipe.

[0025] Optionally, a shock absorbing member is provided on the peripheral side of the fan, the shock absorbing member is built into the water tank body and wraps around the fan to reduce the vibration of the fan;

[0026] The water tank device also includes a battery. The outer side wall of the water tank body is recessed with a receiving groove, and the battery is located in the receiving groove.

[0027] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a cleaning robot, comprising the water tank device.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The present invention provides a water tank device and a cleaning robot. The water tank body is provided with a sewage cavity for containing sewage. A one-way valve body is arranged on one side of the water tank body. A centrifugal pump is arranged between the water tank body and the one-way valve body, and the centrifugal pump is connected to the water outlet of the water tank body and the water inlet of the one-way valve body. A sewage pipe is arranged on one side of the one-way valve body and is connected to the water outlet of the one-way valve body. The sewage pipe is provided with a U-shaped pipe, and the U-shaped pipe is arranged on the upper side of the one-way valve body. An anti-siphon pipe is arranged on the upper side of the U-shaped pipe and is connected to the top of the U-shaped pipe. The pipes are arranged in the up and down directions; the solenoid valve is connected to the end of the anti-siphon pipe away from the U-shaped pipe, and is used to control the opening or closing of the end of the anti-siphon pipe away from the U-shaped pipe, and the one-way valve body is used to play the on-off role of the original electric two-way ball valve, so that the valve core of the one-way valve body can still have a one-way sealing function when blocked by sewage impurities, so that the valve core of the one-way valve body can play a self-cleaning effect during the sewage discharge process, avoiding impurities causing scratches and wear on the surface of the valve core and the sealing ring to destroy its sealing performance, and preventing the sewage pipe of the water tank device from being blocked or leaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0031] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0032] Figure 1 A schematic diagram of a water tank device according to the invention of the present application is shown.

[0033] Figure 2 An exploded view of a water tank device according to the invention of the present application is shown.

[0034] Figure 3 A schematic diagram showing the connection between a water tank body and a fan of the water tank device according to the present invention is shown.

[0035] Figure 4 Shows Figure 3 Sectional view in .

[0036] Figure 5 A connection diagram of a one-way valve body, a centrifugal pump and a sewage pipe of a water tank device according to the invention of the present application is shown.

[0037] Reference numerals

[0038] 100. Water tank device;

[0039] 10. Water tank body; 10a. Sewage chamber; 10b. First chamber; 10c. Second chamber; 10d. Clean water chamber; 10e. Receiving tank;

[0040] 20. One-way valve body;

[0041] 30. Centrifugal pump;

[0042] 40. Sewage pipe; 41. U-shaped pipe;

[0043] 50. Anti-siphon pipe; 51. Horizontal pipe;

[0044] 60. Solenoid valve;

[0045] 70. First water pipe;

[0046] 80. Second water pipe;

[0047] 90. Fan; 91. Ventilation pipe; 92. Sewage suction pipe; 93. Shock absorber; 94. Battery. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0049] Please refer to the attached Figures 1 to 5 The present invention provides a water tank device 100, which is applied to a cleaning robot and is used to discharge sewage.

[0050] Please refer to the attached Figures 1 to 5In the embodiment of the present application, the water tank device 100 includes a water tank body 10, a one-way valve body 20, a centrifugal pump 30, a sewage pipe 40, an anti-siphon pipe 50 and a solenoid valve 60. The water tank body 10 is provided with a sewage chamber 10a, and the sewage chamber 10a is used to accommodate sewage; the one-way valve body 20 is arranged on one side of the water tank body 10; the centrifugal pump 30 is arranged between the water tank body 10 and the one-way valve body 20, and the centrifugal pump 30 is connected to the water outlet of the water tank body 10 and the water inlet of the one-way valve body 20; the sewage pipe 40 is arranged on one side of the one-way valve body 20 and is connected to the water outlet of the one-way valve body 20; the sewage pipe 40 is provided with a U-shaped pipe 41, and the U-shaped pipe 41 is arranged on the upper side of the one-way valve body 20; the anti-siphon pipe The anti-siphon pipe 50 is arranged on the upper side of the U-shaped pipe 41 and is connected to the top of the U-shaped pipe 41. The anti-siphon pipe 50 is arranged in the up and down direction; the solenoid valve 60 is connected to the end of the anti-siphon pipe 50 away from the U-shaped pipe 41, and is used to control the opening or closing of the end of the anti-siphon pipe 50 away from the U-shaped pipe 41. The one-way valve body 20 is used to play the on-off role of the original electric two-way ball valve, so that the valve core of the one-way valve body 20 still has a one-way sealing function when blocked by sewage impurities, so that the valve core of the one-way valve body 20 can play a self-cleaning effect during the sewage discharge process, avoiding impurities from scratching and wearing the surface of the valve core and the sealing ring to destroy its sealing performance, and preventing the sewage pipe 40 of the water tank device 100 from being blocked or leaking.

[0051] Please refer to the attached Figures 1 to 5 In the embodiment of the present application, the water tank body 10 is used as a supporting component of the water tank device 100, and the water tank body 10 is used to support the one-way valve body 20, the centrifugal pump 30, the sewage pipe 40, the anti-siphon pipe 50 and the solenoid valve 60. The water tank body 10 is provided with a sewage chamber 10a, which is the internal space of the water tank body 10 and is used to accommodate sewage; so that the sewage can be stored inside the water tank body 10 through the space of the sewage chamber 10a.

[0052] The one-way valve body 20 is arranged on the outside of the water tank body 10; the centrifugal pump 30 is arranged between the water tank body 10 and the one-way valve body 20, and the centrifugal pump 30 is connected to the water outlet of the water tank body 10 and the water inlet of the one-way valve body 20; so that the centrifugal pump 30 drives the sewage in the water tank body 10 to flow to the one-way valve body 20, thereby facilitating the transfer of the sewage in the water tank body 10 to the one-way valve body 20.

[0053] The sewage pipe 40 is arranged on one side of the one-way valve body 20 and is connected to the water outlet of the one-way valve body 20; the sewage pipe 40 is provided with a U-shaped pipe 41, which is arranged on the upper side of the one-way valve body 20; so that the sewage in the one-way valve body 20 flows to the U-shaped pipe 41.

[0054] The anti-siphon pipe 50 is arranged on the upper side of the U-shaped pipe 41 and is connected to the top of the U-shaped pipe 41. The anti-siphon pipe 50 is arranged in the up and down direction; so that the anti-siphon pipe 50 is at the highest point of the U-shaped pipe 41, so that when the U-shaped pipe 41 is disconnected, the sewage can be discharged outward along the U-shaped pipe 41 under the action of the anti-siphon pipe 50, thereby preventing the sewage in the U-shaped pipe 41 from flowing back to the one-way valve body 20.

[0055] The solenoid valve 60 is connected to one end of the anti-siphon pipe 50 away from the U-shaped tube 41, and is used to control the opening or closing of the end of the anti-siphon pipe 50 away from the U-shaped tube 41. The one-way valve body 20 is used to play the on-off role of the original electric two-way ball valve, so that the valve core of the one-way valve body 20 still has a one-way sealing function when blocked by sewage impurities, so that the valve core of the one-way valve body 20 can have a self-cleaning effect during the sewage discharge process, avoiding impurities from scratching and wearing the surface of the valve core and the sealing ring to destroy its sealing performance, thereby preventing the sewage pipe 40 of the water tank device 100 from being blocked or leaking.

[0056] Please refer to the attached Figures 3 to 5 In the embodiment of the present application, one end of the U-shaped tube 41 is connected to the water outlet of the one-way valve body 20; the water inlet of the one-way valve body 20 is located below the water outlet of the one-way valve body 20, so that the sewage entering through the water inlet of the one-way valve body 20 flows from bottom to top to the U-shaped tube 41; the one-way valve body 20 is built with a sealing ball; when the centrifugal pump 30 is in a working state, the sewage in the sewage chamber 10a enters the water inlet of the one-way valve body 20 through the drive of the centrifugal pump 30, and pushes the sealing ball to move upward, so that the water inlet of the one-way valve body 20 is connected to the water outlet of the one-way valve body 20, so that the centrifugal pump 30 can drive the one-way valve body 20 to open or close. At this time, the one-way valve body 20 is in an open state, so that the sewage in the sewage chamber 10a flows to the U-shaped tube 41, thereby facilitating the discharge of the sewage in the sewage chamber 10a.

[0057] Please refer to the attached Figures 3 to 5 In the embodiment of the present application, when the solenoid valve 60 is in a closed state, the end of the anti-siphon pipe 50 away from the U-shaped tube 41 is in a closed state. Under the action of siphon, the anti-siphon pipe 50 discharges the sewage discharged through the outlet of the one-way valve body 20 to the outside. The sewage passes through the outlet of the one-way valve body 20 and the U-shaped tube 41 in turn, ensuring the smooth discharge of the sewage and avoiding the backflow of the sewage.

[0058] Please refer to the attached Figures 3 to 5In the embodiment of the present application, when the solenoid valve 60 is in an open state, the end of the anti-siphon pipe 50 away from the U-shaped tube 41 is in an open state, and the end of the anti-siphon pipe 50 away from the U-shaped tube 41 is connected to the external environment. At this time, the anti-siphon pipe 50 does not have a siphon effect, and the sewage in the U-shaped tube 41 flows back to the one-way valve body 20 and cannot flow back to the sewage chamber 10a. At this time, the one-way valve body 20 is in a closed state, and the sealing ball blocks the water inlet of the one-way valve body 20, so that the valve core of the one-way valve body 20 still has a one-way sealing function under the blockage of sewage impurities, so that the valve core of the one-way valve body 20 can play a self-cleaning effect during the sewage discharge process, avoiding impurities from scratching and wearing the surface of the valve core and the sealing ring to destroy its sealing performance, thereby preventing the sewage pipe 40 of the water tank device 100 from being blocked or leaking.

[0059] Please refer to the attached Figures 3 to 5 In the embodiment of the present application, the anti-siphon pipe 50 is also provided with a horizontal pipe 51, which is connected to the end of the U-shaped pipe 41 and is arranged along the horizontal direction. The end of the horizontal pipe 51 is arranged downward in an arc, so that the sewage in the U-shaped pipe 41 can flow to the horizontal pipe 51, thereby facilitating the sewage at the end of the horizontal pipe 51 to be discharged outward under the action of gravity, thereby ensuring the smooth discharge of sewage.

[0060] Please refer to the attached Figures 3 to 5 In the embodiment of the present application, a first water pipe 70 is connected between the centrifugal pump 30 and the water outlet of the sewage chamber 10a, and a second water pipe 80 is connected between the centrifugal pump 30 and the water inlet of the one-way valve body 20, so that the sewage chamber 10a, the centrifugal pump 30 and the one-way valve body 20 are connected in sequence through the first water pipe 70, the centrifugal pump 30 and the second water pipe 80. When the centrifugal pump 30 is in the open state, the sewage in the sewage chamber 10a flows to the one-way valve body 20 through the first water pipe 70, the centrifugal pump 30 and the second water pipe 80 in sequence. At the same time, the centrifugal pump 30 drives the one-way valve body 20 to be in the open state, so that the sewage in the one-way valve body 20 flows to the U-shaped tube 41. When the centrifugal pump 30 is damaged, it can be replaced by simply disassembling the first water pipe 70 and the second water pipe 80, which improves the convenience of replacing the centrifugal pump 30.

[0061] Please refer to the attached Figures 3 to 5 In the embodiment of the present application, the sewage chamber 10a includes a first cavity 10b and a second cavity 10c, the second cavity 10c is located below the first cavity 10b and is connected to the first cavity 10b; the area of ​​the first cavity 10b is larger than the area of ​​the second cavity 10c, so that the sewage in the first cavity 10b flows toward the second cavity 10c under its own gravity, and the second cavity 10c is connected to the centrifugal pump 30, so that the sewage in the sewage chamber 10a flows to the centrifugal pump 30 through the second cavity 10c in turn, ensuring that the sewage in the sewage chamber 10a can all flow to the centrifugal pump 30.

[0062] Please refer to the attached Figures 3-4 In the embodiment of the present application, the water tank body 10 also includes a clean water chamber 10d, which is arranged at an interval from the sewage chamber 10a and is in the same water tank body 10; so that the clean water chamber 10d and the sewage chamber 10a are arranged separately, thereby avoiding the mixing of clean water in the clean water chamber 10d and sewage in the sewage chamber 10a.

[0063] Please refer to the attached Figures 1 to 4 The water tank device 100 further includes a fan 90, a ventilation pipe 91 and a sewage suction pipe 92. The fan 90 is built into the water tank body 10 so that the fan 90 can fully utilize the space of the water tank body 10 and avoid increasing the overall occupied area of ​​the water tank device 100. The ventilation pipe 91 is sealedly connected to the air suction end of the fan 90. The ventilation pipe 91 passes through the clean water chamber 10d and extends to the sewage chamber 10a. The ventilation pipe 91 vacuumizes the sewage chamber 10a under the negative pressure of the fan 90, so as to remove suspended matter and dirt in the sewage and reduce impurities in the sewage.

[0064] Please refer to the attached Figures 1-2 The sewage suction pipe 92 extends in the up-down direction and is connected to the water tank body 10. The sewage discharge port of the sewage suction pipe 92 is connected to the sewage chamber 10a. The sewage inlet of the sewage suction pipe 92 is exposed to the outside of the cleaning robot and absorbs sewage under the negative pressure of the fan 90 and the ventilation pipe 91, so that the sewage in the sewage chamber 10a is discharged outward through the sewage suction pipe 92 under the action of the fan 90 and the ventilation pipe 91. The sewage suction pipe 92 reduces its curvature, thereby reducing the risk of clogging of the sewage suction pipe 92.

[0065] Please refer to the attached Figures 3-4 In the embodiment of the present application, a shock absorbing member 93 is provided around the fan 90. The shock absorbing member 93 is built into the water tank body 10 and wraps around the fan 90 to reduce the vibration of the fan 90 and reduce the noise of the fan 90 during the startup process. The water tank device 100 also includes a battery 94. The outer wall of the water tank body 10 is concavely provided with a receiving groove 10e. The battery 94 is in the receiving groove 10e so that the battery 94 can fully utilize the space of the receiving groove 10e. The battery 94 is electrically connected to the fan 90. When the fan 90 is damaged, the fan 90 can be quickly disassembled by removing the battery 94, which improves the convenience of replacing the fan 90.

[0066] In a second application embodiment, a cleaning robot includes a water tank device 100. The water tank device 100 is a part of the cleaning robot, and the cleaning robot is used to clean the floor.

[0067] At this time, the water tank device 100 includes a water tank body 10, a one-way valve body 20, a centrifugal pump 30, a sewage pipe 40, an anti-siphon pipe 50 and a solenoid valve 60. The water tank body 10 is provided with a sewage chamber 10a, and the sewage chamber 10a is used to accommodate sewage; the one-way valve body 20 is arranged on one side of the water tank body 10; the centrifugal pump 30 is arranged between the water tank body 10 and the one-way valve body 20, and the centrifugal pump 30 is connected to the water outlet of the water tank body 10 and the water inlet of the one-way valve body 20; the sewage pipe 40 is arranged on one side of the one-way valve body 20 and is connected to the water outlet of the one-way valve body 20; the sewage pipe 40 is provided with a U-shaped pipe 41, and the U-shaped pipe 41 is arranged on the upper side of the one-way valve body 20; the anti-siphon pipe 50 It is arranged on the upper side of the U-shaped tube 41 and connected to the top of the U-shaped tube 41, and the anti-siphon pipe 50 is arranged in the up and down direction; the solenoid valve 60 is connected to the end of the anti-siphon pipe 50 away from the U-shaped tube 41, and is used to control the opening or closing of the end of the anti-siphon pipe 50 away from the U-shaped tube 41, and the one-way valve body 20 is used to play the on-off role of the original electric two-way ball valve, so that the valve core of the one-way valve body 20 still has a one-way sealing function when blocked by sewage impurities, so that the valve core of the one-way valve body 20 can play a self-cleaning effect during the sewage discharge process, avoiding impurities from scratching and wearing the surface of the valve core and the sealing ring to destroy its sealing performance, and preventing the sewage pipe 40 of the water tank device 100 from being blocked or leaking.

[0068] Compared with the prior art, the present invention has the following beneficial effects:

[0069] The present invention provides a water tank device 100 and a cleaning robot. The water tank body 10 is provided with a sewage chamber 10a, and the sewage chamber 10a is used to accommodate sewage; a one-way valve body 20 is arranged on one side of the water tank body 10; a centrifugal pump 30 is arranged between the water tank body 10 and the one-way valve body 20, and the centrifugal pump 30 is connected to the water outlet of the water tank body 10 and the water inlet of the one-way valve body 20; a sewage pipe 40 is arranged on one side of the one-way valve body 20 and is connected to the water outlet of the one-way valve body 20; the sewage pipe 40 is provided with a U-shaped pipe 41, and the U-shaped pipe 41 is arranged on the upper side of the one-way valve body 20; an anti-siphon pipe 50 is arranged on the upper side of the U-shaped pipe 41 and is connected to the U-shaped pipe 41. The top of the U-shaped tube 41, the anti-siphon pipe 50 is arranged in the up and down direction; the solenoid valve 60 is connected to the end of the anti-siphon pipe 50 away from the U-shaped tube 41, and is used to control the opening or closing of the end of the anti-siphon pipe 50 away from the U-shaped tube 41, and the one-way valve body 20 is used to play the on-off role of the original electric two-way ball valve, so that the valve core of the one-way valve body 20 still has a one-way sealing function when blocked by sewage impurities, so that the valve core of the one-way valve body 20 can play a self-cleaning effect during the sewage discharge process, avoiding impurities from scratching and wearing the surface of the valve core and the sealing ring to destroy its sealing performance, thereby preventing the sewage pipe 40 of the water tank device 100 from being blocked or leaking.

[0070] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0071] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0072] Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A water tank device, characterized in that: Applied to a cleaning robot, the water tank device comprises: The water tank body is provided with a sewage cavity, and the sewage cavity is used to contain sewage; A one-way valve body, arranged on one side of the water tank body; A centrifugal pump is disposed between the water tank body and the one-way valve body, and the centrifugal pump is connected to the water outlet of the water tank body and the water inlet of the one-way valve body; A sewage pipe is arranged on one side of the one-way valve body and is connected to the water outlet of the one-way valve body; the sewage pipe is provided with a U-shaped pipe, and the U-shaped pipe is arranged on the upper side of the one-way valve body; an anti-siphon pipe, arranged on the upper side of the U-shaped pipe and connected to the top of the U-shaped pipe, the anti-siphon pipe being arranged in the up-down direction; The solenoid valve is connected to one end of the anti-siphon pipe away from the U-shaped pipe and is used to control the opening or closing of the end of the anti-siphon pipe away from the U-shaped pipe.

2. The water tank device according to claim 1, characterized in that: One end of the U-shaped tube is connected to the water outlet of the one-way valve body; The water inlet of the one-way valve body is located below the water outlet of the one-way valve body; The one-way valve body is built with a sealing ball; When the centrifugal pump is in working condition, the sewage in the sewage chamber is driven by the centrifugal pump to enter the water inlet of the one-way valve body, and pushes the sealing ball to move upward, so that the water inlet of the one-way valve body is connected with the water outlet of the one-way valve body. At this time, the one-way valve body is in an open state.

3. The water tank device according to claim 2, characterized in that: When the solenoid valve is in a closed state, the end of the anti-siphon pipe away from the U-shaped tube is in a closed state, and the anti-siphon pipe discharges the sewage discharged through the water outlet of the one-way valve body to the outside under the siphon effect, and the sewage passes through the water outlet of the one-way valve body and the U-shaped tube in sequence.

4. The water tank device according to claim 3, characterized in that: When the solenoid valve is in an open state, the end of the anti-siphon pipe away from the U-shaped tube is in an open state, and the end of the anti-siphon pipe away from the U-shaped tube is connected to the external environment. At this time, the anti-siphon pipe does not have a siphon effect, and the sewage in the U-shaped tube flows back into the one-way valve body and cannot flow back into the sewage chamber. At this time, the one-way valve body is in a closed state, and the sealing ball blocks the water inlet of the one-way valve body.

5. The water tank device according to claim 4, characterized in that: The anti-siphon pipe is also provided with a horizontal pipe, which is connected to the end of the U-shaped pipe and arranged along the horizontal direction, and the end of the horizontal pipe is arranged downward in an arc.

6. The water tank device according to any one of claims 1 to 5, characterized in that: A first water pipe is connected between the centrifugal pump and the water outlet of the sewage chamber, and a second water pipe is connected between the centrifugal pump and the water inlet of the one-way valve body.

7. The water tank device according to any one of claims 1 to 5, characterized in that: The sewage chamber includes a first chamber and a second chamber, wherein the second chamber is located below the first chamber and communicates with the first chamber; the area of ​​the first chamber is larger than the area of ​​the second chamber The second cavity is communicated with the centrifugal pump.

8. The water tank device according to any one of claims 1 to 5, characterized in that: The water tank body also includes a clean water chamber, which is spaced apart from the sewage chamber and is located in the same water tank body; The water tank device further includes a fan, a ventilation pipe and a sewage suction pipe, wherein the fan is built into the water tank body, the ventilation pipe is sealingly connected to the air suction end of the fan, the ventilation pipe passes through the clean water cavity and extends to the sewage cavity, and the ventilation pipe vacuumizes the sewage cavity under the negative pressure of the fan; The sewage suction pipe extends in the up-down direction and is connected to the water tank body. The sewage discharge port of the sewage suction pipe is connected to the sewage chamber. The sewage inlet of the sewage suction pipe is exposed to the outside of the cleaning robot and absorbs sewage under the negative pressure of the fan and the ventilation pipe.

9. The water tank device according to claim 8, characterized in that: A shock absorbing member is provided on the peripheral side of the fan, the shock absorbing member is built into the water tank body and wraps around the fan to reduce the vibration of the fan; The water tank device also includes a battery. The outer side wall of the water tank body is recessed with a receiving groove, and the battery is located in the receiving groove.

10. A cleaning robot, characterized in that: Comprising a water tank device as claimed in any one of claims 1 to 9.

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