A cleaning robot sewage tank system and a cleaning robot

Abstract

The present invention discloses a sewage tank system of a cleaning robot and a cleaning robot. The sewage tank system of the cleaning robot comprises: a frame; a sewage tank, the sewage tank is arranged on the frame; a top cover, the top cover is arranged on the upper part of the sewage tank; a sewage filtering mechanism, the sewage filtering mechanism is arranged in the sewage tank, and the sewage filtering mechanism can filter sewage; an automatic sewage discharge mechanism, the automatic sewage discharge mechanism is arranged on the frame, and the automatic sewage discharge mechanism is connected to the sewage tank; a vacuum system, the vacuum system is arranged in the sewage tank, and the vacuum system can be connected to a fan. The cleaning robot comprises the sewage tank system of the cleaning robot. The sewage tank system of the cleaning robot and the cleaning robot of the present invention have the characteristics of ingenious structural design, good filtering effect, good sewage discharge effect, good sealing, etc.

Description

Technical Field

[0001] The invention relates to the field of cleaning equipment, and in particular to a cleaning robot sewage tank system and a cleaning robot. Background Art

[0002] In recent years, with the continuous increase in labor costs and the continuous advancement of intelligent property services, property cleaning robots are increasingly entering application scenarios such as residential communities, office buildings, and hospitals.

[0003] During use, property cleaning robots with a high level of intelligence mostly adopt an operating mode of automatically washing the floor, sucking sewage into a sewage tank, and automatically discharging sewage.

[0004] Due to factors such as the large area of ​​the work site and complex working conditions, when the cleaning robot sucks sewage into the sewage tank, it often sucks a lot of large debris such as hair, leaves, cigarette butts, etc. These debris can easily cause the automatic sewage outlet to be blocked, and also increase the difficulty and workload of cleaning the sewage tank. Most of the existing cleaning robot solutions adopt two methods. One method is to cover the water inlet of the sewage tank with a screen with fine holes. This method can easily cause the screen to be blocked, thereby causing the water inlet to be blocked, the suction motor does not work, it is difficult to form a negative pressure chamber in the sewage tank, and it is inconvenient to disassemble and assemble. Another method is to set an open filter at the water inlet of the sewage tank, and the filter is installed on the inner wall of the sewage tank. Because there is a long distance between the filter and the water inlet, after the sewage enters the sewage tank, it splashes under the action of negative pressure, and debris also enters the sewage tank. The filtering effect is extremely poor, and the inner wall of the sewage tank is also covered with debris, which increases the workload of subsequent cleaning of the sewage tank. In addition, because the filter itself is too soft, it is also inconvenient to clean.

[0005] Traditional automatic sewage drainage uses a pump + ball valve. Due to the large area of ​​the work site and complex working conditions, the cleaning robot often absorbs a lot of hair, leaves, cigarette butts and other large debris when sucking sewage into the sewage tank. These debris can easily cause blockage of the automatic sewage outlet and damage the pump or ball valve. In order to prevent debris from entering the water pump, a dirt filter device is often installed in front of the water pump to filter out most of the debris. However, the filter device itself will often get clogged, affecting the sewage discharge effect, and needs to be cleaned frequently, greatly increasing the workload of equipment maintenance. This has also become an important factor that makes it difficult for cleaning robots to operate stably.

[0006] In the process of sucking sewage into the sewage tank, sewage often enters the suction motor, thus damaging the suction motor. To address this problem, the industry often uses two methods to solve it. One is to set a float at the front end of the sewage tank outlet. This method has a general sealing effect, and some sewage will still enter, and part of the space in the sewage tank is sacrificed. The other method is to increase the distance between the air outlet and the highest water surface of the sewage tank. This method has a very poor sealing effect, and it is inevitable that water vapor will enter the suction motor. The biggest disadvantage is that a lot of sewage tank space is sacrificed. At present, these two methods cannot fundamentally solve the problem of sewage entering the sewage tank, and the disadvantages are obvious.

[0007] In order to solve the above-mentioned problems of property cleaning robots, the present invention provides a sewage tank system for a cleaning robot. Summary of the invention

[0008] Based on this, the object of the present invention is to provide a cleaning robot sewage tank system and a cleaning robot with ingenious structural design, good filtering effect, good sewage discharge effect and good sealing.

[0009] The cleaning robot sewage tank system of the present invention comprises:

[0010] Frame;

[0011] A sewage tank, the sewage tank being arranged on the frame;

[0012] A top cover, the top cover is arranged on the upper part of the sewage tank;

[0013] A sewage filtering mechanism, wherein the sewage filtering mechanism is disposed in the sewage tank and can filter sewage;

[0014] An automatic sewage discharge mechanism, which is disposed on the frame and connected to the sewage tank;

[0015] A vacuum pumping system is arranged in the sewage tank, and the vacuum pumping system can be connected to a fan.

[0016] The sewage tank system of the cleaning robot of the present invention is provided with a sewage filtering mechanism, an automatic sewage discharge mechanism and a vacuum system. The sewage filtering mechanism is used to filter out large debris such as cigarette butts, leaves, hair, etc., and the filtering effect is good, so as to prevent the debris from accumulating in the sewage tank. The automatic sewage discharge mechanism realizes automatic control of sewage discharge and cutoff, and can discharge small debris in the sewage together, so as to avoid the damage of the small debris to the pump or the ball valve, and reduces the filtering device provided in front of the sewage pump. Only simple filtering is required at the sewage inlet, and the situation that dirt blocks the filtering device will not occur, so the equipment maintenance work of cleaning the filtering device is avoided, thereby realizing automatic and efficient sewage discharge operation. The vacuum system can block the water in the sewage tank from entering the fan, so as to solve the problem that sewage in the prior art easily enters the suction motor.

[0017] In one implementation of the above technical solution, a mounting hole is provided at the lower portion of the sewage tank;

[0018] The sewage filtering mechanism comprises a water inlet pipe and a filtering funnel;

[0019] The water inlet pipe is installed in the installation hole and extends into the sewage tank;

[0020] The filter funnel is arranged in the sewage tank, and the inlet of the filter funnel is located below the outlet of the water inlet pipe;

[0021] A shielding and guiding portion is arranged on the inner side of the top cover, the shielding and guiding portion is located above the inlet of the filter funnel, and the shielding and guiding portion is arranged on the outer side of the outlet of the water inlet pipe.

[0022] By arranging a water inlet pipe, a filter funnel and a shielding and guiding part of the top cover, the sewage is introduced into the sewage tank by means of the water inlet pipe, and the filter funnel can filter the sewage flowing out of the water inlet pipe, filter out cigarette butts, leaves, hair and other large debris, and have a good filtering effect, thereby preventing the debris from accumulating in the sewage tank; the shielding and guiding part arranged on the inner side of the top cover can guide the sewage flowing out of the water inlet pipe into the filter funnel, thereby preventing the sewage from splashing in the sewage tank, further improving the filtering effect, and preventing the inner wall of the sewage tank from being covered with dirt; the top cover is easy to open, so as to facilitate the observation and cleaning of the debris collection in the filter funnel.

[0023] In one implementation of the above technical solution, the mounting hole is opened on the bottom surface of the sewage tank, and the water inlet pipe is vertically installed in the mounting hole;

[0024] A through hole is arranged in the middle of the filter funnel, and the filter funnel is sleeved on the water inlet pipe through the through hole.

[0025] Such an arrangement allows the sewage to flow from bottom to top in the water inlet pipe, reducing the impact force when the sewage flows out; the filter funnel is installed on the water inlet pipe through the pipe perforation, so that the sewage flowing out of the water inlet pipe falls directly into the filter funnel under the action of gravity, which not only improves the filtering effect, but also simplifies the structure and facilitates disassembly and maintenance.

[0026] In one embodiment of the above technical solution, the filter funnel includes a first step filter part and a second step filter part, and the first step filter part is located above the second step filter part. The filter funnel is provided with two step filter parts, which can ensure that the sewage is filtered out of large-volume debris such as cigarette butts and easily entangled debris such as hair. When the second step filter part is blocked due to the accumulation of debris, the first step filter part can still play a filtering role. In addition, the debris filtered out by the first step filter part or the second step filter part is easy to observe and identify, and easy to clean up uniformly.

[0027] In one embodiment of the above technical solution, the automatic sewage discharge mechanism includes a hose, a sewage discharge pressing assembly, a connecting pipe, a sewage discharge pipe, a support seat and a buffer pad;

[0028] The hose is connected to the sewage tank;

[0029] The sewage compression assembly is arranged on the frame, and the sewage compression assembly can compress the hose to cut off sewage discharge;

[0030] The connecting pipe is connected between the sewage tank and the hose;

[0031] The sewage pipe is connected to the outlet of the hose;

[0032] The support seat is installed on the frame, and the support seat is located on one side of the hose, and the support seat can receive the compressed hose;

[0033] The buffer pad is fixed between the support seat and the hose.

[0034] The hose is compressed by the sewage compression assembly to cut off the sewage discharge, and the automatic control of the hose sewage discharge and cutoff is realized. After the sewage discharge and cutoff are controllable, the fine debris in the sewage can be discharged together to avoid the damage of the pump or the ball valve by the fine debris; the filtering device set in front of the sewage pump is reduced, and only simple filtering is required at the sewage inlet, and the situation that the dirt blocks the filtering device will not occur, and the equipment maintenance work of cleaning the filtering device is avoided, thereby realizing automatic and efficient sewage discharge operation; the sewage discharge pipe can discharge the sewage flowing out of the connecting pipe and the hose, and the sewage discharge pipe and the connecting pipe can fix the two ends of the hose, even if the hose is compressed and then restored, the hose will not be displaced, so that the hose remains in a fixed position; the support seat can be used to receive the compressed hose, so that the hose is compressed more completely, which can completely cut off the sewage discharge; the buffer pad can buffer the extrusion force on the hose, prevent the hose from being crushed, and extend the service life of the hose.

[0035] In one implementation of the above technical solution, the sewage compacting assembly includes an electric push rod and a compacting block;

[0036] The electric push rod is fixed on the frame, and the push rod faces the hose and can press the hose against the support seat to cut off the sewage discharge;

[0037] The pressing block is fixed on the push rod of the electric push rod, and the pressing block can press the hose to cut off sewage discharge.

[0038] The electric push rod can automatically extend the push rod under the control of the signal to compress the hose to cut off the sewage discharge; the size and specification of the set compression block can be adjusted according to the size of the hose to increase the compression and cutting effect.

[0039] In one implementation of the above technical solution, an air duct is provided on the upper part of the sewage tank, and a first air outlet and a second air outlet are respectively provided on both sides of the air duct;

[0040] The vacuum system includes a bracket, a blocking component and an air outlet pipe;

[0041] The bracket is arranged in the sewage tank;

[0042] The blocking component can be slidably disposed on the bracket, and the blocking component can seal the first air outlet;

[0043] One end of the air outlet pipe is connected to the second air outlet, and the other end of the air outlet pipe extends out of the sewage tank and can be connected to the fan.

[0044] By arranging a bracket in the sewage tank, the blocking component can be slidably set on the bracket. When the water volume in the sewage tank is insufficient, the air duct is unobstructed and the air suction effect is good; when the water level rises, the blocking component rises along the bracket under the action of buoyancy until the blocking component blocks the first air outlet under the action of buoyancy and wind suction, and the air duct is blocked. At this time, the fan no longer absorbs air in the sewage tank, thereby blocking the possibility of water in the sewage tank entering the fan, thereby solving the problem of sewage entering the suction motor in the prior art.

[0045] In one implementation of the above technical solution, the top cover and the upper part of the sewage tank enclose the air duct;

[0046] The blocking assembly includes a floating member and a blocking plate. The floating member can be slidably arranged on the bracket. The blocking plate is fixed on the floating member, and the blocking plate can seal the first air outlet.

[0047] The air duct is enclosed by the top cover and the upper part of the sewage tank, so that the air duct has good sealing performance; the floating member can drive the blocking plate to move upward under the action of buoyancy, and when the water level rises, the blocking plate can seal the first air outlet.

[0048] In one embodiment of the above technical solution, both the first air outlet and the second air outlet are provided with soft rubber plugs, which can be compressed by the plugging plate to seal the first air outlet. The soft rubber plug has a strong deformation ability and can seal the first air outlet after being compressed and deformed.

[0049] The present invention further provides a cleaning robot, comprising any one of the cleaning robot sewage tank systems described above.

[0050] Compared with the prior art, the sewage tank system and cleaning robot of the present invention are provided with a sewage filtering mechanism, an automatic sewage discharge mechanism and a vacuum system, and the sewage filtering mechanism is used to filter out large debris such as cigarette butts, leaves, and hair, with good filtering effect, preventing debris from accumulating in the sewage tank; the automatic sewage discharge mechanism realizes automatic control of sewage discharge and cutoff, and can discharge fine debris in the sewage together, avoiding damage to the pump or ball valve by fine debris, reducing the filtering device set in front of the sewage pump, and only needs to perform simple filtering at the sewage inlet, and there will be no situation where dirt blocks the filtering device, avoiding the equipment maintenance work of cleaning the filtering device, thereby realizing automatic and efficient sewage discharge operation; the vacuum system can block the water in the sewage tank from entering the fan, solving the problem that sewage in the prior art easily enters the suction motor. The sewage tank system and cleaning robot of the present invention have the characteristics of ingenious structural design, good filtering effect, good sewage discharge effect, good sealing, etc.

[0051] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a structural schematic diagram of the preferred structure of the sewage tank system of the cleaning robot of the present invention.

[0053] Figure 2 It is a top view of the top cover and sewage tank.

[0054] Figure 3 yes Figure 2 Sectional view along AA direction.

[0055] Figure 4 It is a structural diagram of the preferred structure of the automatic sewage discharge mechanism.

[0056] Figure 5 It is a side view of the top cover and sewage tank.

[0057] Figure 6 yes Figure 5 Cross-sectional view along direction BB. DETAILED DESCRIPTION

[0058] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may change accordingly according to their different locations and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0059] The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0060] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0061] See also Figure 1-Figure 6 The sewage tank system of the cleaning robot of the present invention comprises a frame 1 , a sewage tank 2 , a top cover 3 , a sewage filtering mechanism 4 , an automatic sewage discharge mechanism 5 and a vacuum system 6 .

[0062] The sewage tank 2 is disposed on the frame 1 .

[0063] The top cover 3 is arranged on the upper part of the sewage tank 2 .

[0064] The sewage filtering mechanism 4 is disposed in the sewage tank 2 , and the sewage filtering mechanism 4 can filter sewage.

[0065] The automatic sewage discharge mechanism 5 is disposed on the frame 1 , and the automatic sewage discharge mechanism 5 is connected to the sewage tank 2 .

[0066] The vacuum system 6 is disposed in the sewage tank 2 , and the vacuum system 6 can be connected to a fan.

[0067] By setting up a sewage filtering mechanism 4, an automatic sewage discharge mechanism 5 and a vacuum system 6, the sewage filtering mechanism 4 is used to filter out large debris such as cigarette butts, leaves, hair, etc., with a good filtering effect, preventing debris from accumulating in the sewage tank 2; the automatic sewage discharge mechanism 5 realizes automatic control of sewage discharge and cutoff, and can discharge small debris in the sewage together, avoiding damage to the pump or the ball valve by small debris, reducing the filtering device set in front of the sewage pump, and only needs to perform simple filtering at the sewage inlet, and there will be no situation where dirt blocks the filtering device, avoiding the equipment maintenance work of cleaning the filtering device, thereby realizing automatic and efficient sewage discharge operation; the vacuum system 6 can block the water in the sewage tank 2 from entering the fan, solving the problem that sewage in the prior art easily enters the suction motor.

[0068] Specifically, the sewage filtering mechanism 4 includes a water inlet pipe 41 and a filtering funnel 42 .

[0069] The water inlet pipe 41 is installed in the installation hole 20 and extends into the sewage tank 2 .

[0070] The filter funnel 42 is disposed in the sewage tank 2 , and the inlet of the filter funnel 42 is located below the outlet of the water inlet pipe 41 .

[0071] The top cover 3 is provided with a shielding and guiding portion 31 on the inner side thereof. The shielding and guiding portion 31 is located above the inlet of the filter funnel 42 , and the shielding and guiding portion 31 is provided on the outer side of the outlet of the water inlet pipe 41 .

[0072] By providing a water inlet pipe 41, a filter funnel 42 and a shielding guide portion 31 of the top cover 3, the water inlet pipe 41 is used to introduce sewage into the sewage tank 2, and the filter funnel 42 can filter the sewage flowing out of the water inlet pipe 41, filter out cigarette butts, leaves, hair and other large debris, and have a good filtering effect, thereby preventing debris from accumulating in the sewage tank 2; and the shielding guide portion 31 provided on the inner side of the top cover 3 can guide the sewage flowing out of the water inlet pipe 41 to the filter funnel 42, thereby preventing the sewage from splashing in the sewage tank 2, further improving the filtering effect, and preventing the inner wall of the sewage tank 2 from being covered with dirt; the top cover 3 is easy to open, so it is convenient to observe and clean the debris collection in the filter funnel 42.

[0073] Preferably, a mounting hole 20 is provided at the lower part of the sewage tank 2. In this embodiment, the mounting hole 20 is preferably provided at the bottom surface of the sewage tank 2, and the water inlet pipe is vertically installed at the mounting hole 20. Such an arrangement allows the sewage to flow from bottom to top in the water inlet pipe, thereby reducing the impact force when the sewage flows out.

[0074] A through hole is provided in the middle of the filter funnel 42 , and the filter funnel 42 is sleeved on the water inlet pipe 41 through the through hole.

[0075] The filter funnel 42 is installed on the water inlet pipe 41 through the pipe perforation, so that the sewage flowing out of the water inlet pipe 41 directly falls into the filter funnel 42 under the action of gravity, which not only improves the filtering effect but also simplifies the structure and facilitates disassembly and maintenance.

[0076] Preferably, the filter funnel 42 includes a first step filter portion 421 and a second step filter portion 422, and the first step filter portion 421 is located above the second step filter portion 422. The filter funnel 42 is provided with two step filter portions, so that the sewage can be filtered out of large-volume debris such as cigarette butts and easily entangled debris such as hair. When the second step filter portion 422 is blocked due to accumulation of debris, the first step filter portion 421 can still play a filtering role. In addition, the debris filtered out by the first step filter portion 421 or the second step filter portion 422 is easy to observe and identify, and easy to clean uniformly.

[0077] The first step filter part 421 and the second step filter part 422 both include a side plate 4201 and a filter bottom plate 4202 with filter holes, the side plate 4201 is arranged around the filter bottom plate 4202, and the side plate 4201 of the second step filter part 422 is connected to the filter bottom plate 4202 of the first step filter part 421. The side plate 4201 can prevent sewage from flowing out from the side of the filter bottom plate 4202, and the filter holes of the filter bottom plate 4202 can filter sewage and filter out larger debris such as cigarette butts, leaves, and hair.

[0078] Furthermore, the filtering bottom plate 4202 is in a circular ring shape, and the side plate 4201 is in a cylindrical shape.

[0079] The side plate 4201 of the second step filter portion 422 is connected to the inner circular edge of the filter bottom plate 4202 of the first step filter portion 421 .

[0080] The filter bottom plate 4202 is set to a circular ring shape, so that the first step filter part 421 and the second step filter part 422 form a stepped filter structure that is wide at the top and narrow at the bottom. When a step filter part is blocked, the other step filter part can still play a filtering role, and the structure is more compact and easy to disassemble and maintain.

[0081] Preferably, a mounting tube 423 is provided in the middle of the filter bottom plate 4202 of the second stepped filter part 422, and the through hole in the mounting tube 423 forms the through hole. The filter funnel 42 can be sleeved on the water inlet pipe 41 through the mounting tube 423, which is convenient for disassembly and assembly.

[0082] Furthermore, the shielding and guiding part 31 is cylindrical with an opening downward, and the opening is disposed around the outlet of the water inlet pipe 41. The cylindrical shielding and guiding part 31 can guide the sewage flowing out of the water inlet pipe 41 and guide the sewage into the filter funnel 42, thereby ensuring that the collected sewage seeps down along the filter funnel 42, and that part of the sewage does not directly enter the sewage tank 2 without being filtered, and that the sewage does not splash around in the sewage tank 2, thereby maintaining the cleanliness of the sewage tank 2 to the maximum extent and reducing the workload of cleaning the sewage tank 2 later.

[0083] Preferably, the water inlet pipe 41 and the filter funnel 42 are both injection molded parts with a draft angle. The draft angle is provided to facilitate the disassembly, assembly and cleaning of the filter funnel 42.

[0084] In addition, a step may preferably be provided at the connection between the water inlet pipe 41 and the filter funnel 42 to further facilitate the disassembly and assembly of the two.

[0085] Furthermore, the shielding and guiding part 31 is cylindrical with an opening downward, and the opening is disposed around the outlet of the water inlet pipe 41. The cylindrical shielding and guiding part 31 can guide the sewage flowing out of the water inlet pipe 41 and guide the sewage into the filter funnel 42, thereby ensuring that the collected sewage seeps down along the filter funnel 42, and that part of the sewage does not directly enter the sewage tank 2 without being filtered, and that the sewage does not splash around in the sewage tank 2, thereby maintaining the cleanliness of the sewage tank 2 to the maximum extent and reducing the workload of cleaning the sewage tank 2 later.

[0086] In order to increase the shielding and guiding effects of the shielding and guiding portion 31, the present embodiment preferably sets the area of ​​the shielding and guiding portion 31 to be smaller than the area of ​​the first step filter portion 421 of the filter funnel 42. This design can ensure that all sewage can be filtered by the filter funnel 42 after being shielded and guided by the shielding and guiding portion 31, thereby preventing some sewage from directly entering the sewage tank 2 without being filtered.

[0087] The working principle of the sewage filtering mechanism 4:

[0088] Under the action of the suction motor, a negative pressure chamber is formed inside the sewage tank 2, and the sewage enters the sewage tank 2 from the lower part of the water inlet pipe 41 under the action of the negative pressure. The sewage entering the sewage tank 2 enters the lower part of the sewage tank 2 through the filtering funnel 42 under the shielding and guiding action of the shielding and guiding part 31 of the top cover 3.

[0089] Next, the automatic sewage discharge mechanism 5 will be described in detail.

[0090] The automatic sewage discharge mechanism 5 includes a hose 51 , a sewage discharge pressing assembly 52 , a connecting pipe 53 , a sewage discharge pipe 54 , a support seat 55 and a buffer pad 56 .

[0091] The hose 51 is connected to the sewage tank 2 .

[0092] The sewage pressing assembly 52 is disposed on the frame 1 , and the sewage pressing assembly 52 can press the hose 51 to cut off sewage discharge.

[0093] The hose 51 is compressed by the sewage clamping assembly 52 to cut off sewage discharge, thereby realizing automatic control of sewage discharge and cutoff of the hose 51. After the sewage discharge and cutoff are controllable, fine debris in the sewage can be discharged together to avoid damage to the pump or the ball valve by the fine debris; the filtering device set in front of the sewage pump is reduced, and only simple filtering is required at the sewage inlet, and the filtering device will not be blocked by dirt, thereby avoiding the equipment maintenance work of cleaning the filtering device, thereby realizing automatic and efficient sewage discharge operations.

[0094] The connecting pipe 53 is connected between the sewage tank 2 and the hose 51. The sewage discharge pipe 54 is connected to the outlet of the hose 51.

[0095] The sewage pipe 54 can discharge the sewage flowing out of the connecting pipe 53 and the hose 51, and the sewage pipe 54 and the connecting pipe 53 can fix the two ends of the hose 51. Even if the hose 51 is compressed and then restored, the hose 51 will not be displaced, so that the hose 51 maintains a fixed position.

[0096] The support seat 55 is installed on the frame 1, and the support seat 55 is located on one side of the hose 51, and the support seat 55 can receive the compressed hose 51. The support seat 55 can be used to receive the compressed hose 51, so that the hose 51 is compressed more completely, which can completely cut off the sewage discharge.

[0097] The buffer pad 56 is fixed between the support seat 55 and the hose 51. The buffer pad 56 can buffer the extrusion force on the hose 51, prevent the hose 51 from being crushed, and extend the service life of the hose 51.

[0098] Preferably, the sewage pressing assembly 52 includes an electric push rod 521 and a pressing block 522 .

[0099] The electric push rod 521 is fixed on the frame 1, and the push rod faces the hose 51 and can press the hose 51 against the support seat 55 to cut off the sewage discharge. The electric push rod 521 can automatically extend the push rod under the control of the signal to press the hose 51 to cut off the sewage discharge.

[0100] The pressing block 522 is fixed on the push rod of the electric push rod 521, and the pressing block 522 can press the hose 51 to cut off the sewage discharge. The size and specification of the set pressing block 522 can be adjusted according to the size of the hose 51 to increase the pressing and cutting effect.

[0101] Of course, by understanding the above technical solutions, the sewage clamping assembly 52 can also be replaced by a motor-driven screw or other mechanical device, a cylinder-driven clamping block 522 or other structural forms in the prior art.

[0102] Furthermore, the automatic sewage discharge mechanism 5 further comprises a fixing seat 57, the fixing seat 57 is mounted on the frame 1, and the electric push rod 521 is fixed on the fixing seat 57. The setting of the fixing seat 57 can make the electric push rod 521 more firmly fixed.

[0103] In addition, the hose 51 is a rubber hose 51. The hose 51 is a wearing part, and the hose 51 is made of rubber material, which is easy to replace and has low cost.

[0104] The working principle of the automatic sewage discharge mechanism 5:

[0105] When the cleaning robot performs a cleaning task and does not need to perform the automatic sewage discharge function, the push rod of the electric push rod 521 extends, and the pressing block 522 presses the hose 51 on the support seat 55, thereby cutting off the sewage discharge pipeline. At this time, the buffer pad 56 on the support seat 55 is deformed, which plays a buffering and protective role for the hose 51.

[0106] When the automatic sewage discharge function needs to be executed, the electric push rod 521 retracts and returns to its original position, the hose 51 returns to its original shape, the sewage discharge pipeline is opened, and the sewage is discharged through the sewage tank 2, the connecting pipe 53, the hose 51 and the sewage discharge pipe 54.

[0107] Next, the vacuum system 6 will be described in detail.

[0108] An air duct 21 is disposed on the upper portion of the sewage tank 2 , and a first air outlet 211 and a second air outlet 212 are disposed on both sides of the air duct 21 .

[0109] The vacuum system 6 includes a bracket 61 , a blocking component 62 and an air outlet pipe 63 .

[0110] The bracket 61 is disposed in the sewage tank 2 .

[0111] The blocking component 62 can be slidably disposed on the bracket 61 , and the blocking component 62 can seal the first air outlet 211 .

[0112] One end of the air outlet pipe 63 is connected to the second air outlet 212 , and the other end of the air outlet pipe 63 extends out of the sewage tank 2 and can be connected to a fan.

[0113] By setting a bracket 61 in the sewage tank 2, the blocking component 62 is slidably set on the bracket 61. When the water volume in the sewage tank 2 is insufficient, the air duct 21 is unobstructed and the air suction effect is good; when the water level rises, the blocking component 62 rises along the bracket 61 under the action of buoyancy, until the blocking component 62 blocks the first air outlet 211 under the action of buoyancy and wind suction, and the air duct 21 is blocked. At this time, the fan no longer absorbs the air in the sewage tank 2, and the possibility of water in the sewage tank 2 entering the fan is blocked, which solves the problem of sewage entering the suction motor in the prior art; when the sewage is discharged, the water level in the sewage tank 2 drops, the blocking component 62 drops along the bracket 61, and the air duct 21 will open again.

[0114] The bracket 61 is provided with a guide structure extending up and down, and the blocking component 62 can be slid up and down on the guide structure. The guide structure can guide the blocking component 62 to slide up and down under the action of buoyancy, so that the first air outlet 211 can be accurately sealed.

[0115] In specific configuration, the guide structure may be in the form of a guide groove, a guide rail, a guide bar, etc. The bracket 61 may preferably be in the form of a frame, so that it occupies a small space and does not affect the effective use volume of the sewage tank 2 .

[0116] Preferably, the top cover 3 and the upper part of the sewage tank 2 enclose the air duct 21. The top cover 3 and the upper part of the sewage tank 2 enclose the air duct 21, so that the air duct 21 has good sealing performance.

[0117] The air duct 21 is located at the upper part of the sewage tank 2, so that it occupies a very small space of the sewage tank 2 and does not affect the effective use volume of the sewage tank 2, so that the sewage tank 2 can accommodate more sewage.

[0118] A sealing ring 7 is provided between the periphery of the top cover 3 and the upper periphery of the sewage tank 2, and the sealing ring 7 can be preferably fastened with screws. The provided sealing ring 7 can seal the periphery of the top cover 3 and the upper periphery of the sewage tank 2, thereby improving the overall sealing of the sewage tank 2.

[0119] The top cover 3 and the upper part of the sewage tank 2 surround the periphery of the air duct 21 and are provided with a sealing ring 8, which can preferably be fastened with screws. The sealing ring 8 can seal the air duct 21 to prevent air leakage during the air suction process of the fan.

[0120] The blocking assembly 62 includes a floating member 621 and a blocking plate 622. The floating member 621 can be slidably disposed on the bracket 61. The blocking plate 622 is fixed on the floating member 621, and the blocking plate 622 can seal the first air outlet 211. The floating member 621 can drive the blocking plate 622 to move upward under the action of buoyancy. When the water level rises, the blocking plate 622 can seal the first air outlet 211.

[0121] Preferably, the floating member 621 is EVA foam, which has a simple structure and can float up and down freely under the action of sewage to float the blocking plate 622 upward.

[0122] During installation, the floating member 621 is embedded in the blocking plate 622 , and the whole is installed in the bracket 61 , and then the bracket 61 is installed in the sewage tank 2 .

[0123] Furthermore, the first air outlet 211 and the second air outlet 212 are both provided with soft rubber plugs 210, which can be compressed by the plugging plate 622 to seal the first air outlet 211. The soft rubber plug 210 has a strong deformation ability, and can seal the first air outlet 211 after being compressed and deformed.

[0124] Preferably, the portion where the air outlet pipe 63 extends out of the sewage tank 2 is sleeved with a sealing ring 9, and the sealing ring 9 can be preferably fastened with screws. This arrangement can improve the sealing performance of the position where the air outlet pipe 63 is installed and avoid water leakage.

[0125] The main structures such as the sewage tank 2, the bracket 61, the air outlet pipe 63 and the top cover 3 can all be made of plastic parts with good workmanship.

[0126] The sewage tank system of the cleaning robot of the present invention is suitable for a cleaning robot with an automatic sewage discharge function.

[0127] The present invention further provides a cleaning robot, comprising the cleaning robot sewage tank system.

[0128] The application scenarios of the cleaning robot of the present invention include large shopping malls, airports, factories, libraries, railway stations, theaters and other places that require large-scale cleaning.

[0129] Compared with the prior art, the sewage tank system and cleaning robot of the present invention are provided with a sewage filtering mechanism 4, an automatic sewage discharge mechanism 5 and a vacuum system 6, and the sewage filtering mechanism 4 is used to filter out large debris such as cigarette butts, leaves, and hair, so as to achieve good filtering effect and prevent debris from accumulating in the sewage tank 2; the automatic sewage discharge mechanism 5 realizes automatic control of sewage discharge and cutoff, and can discharge fine debris in the sewage together, avoiding damage to the pump or ball valve by fine debris, reducing the filtering device set in front of the sewage pump, and only needs to perform simple filtering at the sewage inlet, so that there will be no situation where dirt blocks the filtering device, and the equipment maintenance work of cleaning the filtering device is avoided, thereby realizing automatic and efficient sewage discharge operation; the vacuum system 6 can block the water in the sewage tank 2 from entering the fan, solving the problem that sewage in the prior art easily enters the suction motor. The sewage tank system and cleaning robot of the present invention have the characteristics of ingenious structural design, good filtering effect, good sewage discharge effect, good sealing, etc.

[0130] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention 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 present invention, which all belong to the protection scope of the present invention.

Claims

1. A cleaning robot sewage tank system, characterized in that: include: Frame; A sewage tank, the sewage tank being arranged on the frame; A top cover, the top cover is arranged on the upper part of the sewage tank, and a sealing ring is arranged between the periphery of the top cover and the upper part of the sewage tank; A sewage filtering mechanism, wherein the sewage filtering mechanism is disposed in the sewage tank and can filter sewage; An automatic sewage discharge mechanism, which is disposed on the frame and connected to the sewage tank; A vacuum pumping system, which is arranged in the sewage tank and can be connected to a fan; A mounting hole is provided at the lower portion of the sewage tank; The sewage filtering mechanism comprises a water inlet pipe and a filtering funnel; The water inlet pipe is installed in the installation hole and extends into the sewage tank; The filter funnel is arranged in the sewage tank, and the inlet of the filter funnel is located below the outlet of the water inlet pipe; A shielding and guiding portion is arranged on the inner side of the top cover, the shielding and guiding portion is located above the inlet of the filter funnel, and the shielding and guiding portion is arranged on the outer side of the outlet of the water inlet pipe.

2. The cleaning robot sewage tank system according to claim 1, characterized in that: The mounting hole is opened on the bottom surface of the sewage tank, and the water inlet pipe is vertically mounted on the mounting hole; A through hole is arranged in the middle of the filter funnel, and the filter funnel is sleeved on the water inlet pipe through the through hole.

3. The cleaning robot sewage tank system according to claim 2, characterized in that: The filter funnel includes a first step filter portion and a second step filter portion, wherein the first step filter portion is located above the second step filter portion.

4. The cleaning robot sewage tank system according to claim 1, characterized in that: The automatic sewage discharge mechanism includes a hose, a sewage discharge pressing assembly, a connecting pipe, a sewage discharge pipe, a support seat and a buffer pad; The hose is connected to the sewage tank; The sewage compression assembly is arranged on the frame, and the sewage compression assembly can compress the hose to cut off sewage discharge; The connecting pipe is connected between the sewage tank and the hose; The sewage pipe is connected to the outlet of the hose; The support seat is installed on the frame, and the support seat is located on one side of the hose, and the support seat can receive the compressed hose; The buffer pad is fixed between the support seat and the hose.

5. The cleaning robot sewage tank system according to claim 4, characterized in that: The sewage compacting assembly comprises an electric push rod and a compacting block; The electric push rod is fixed on the frame, and the push rod faces the hose and can press the hose against the support seat to cut off the sewage discharge; The pressing block is fixed on the push rod of the electric push rod, and the pressing block can press the hose to cut off sewage discharge.

6. The cleaning robot sewage tank system according to any one of claims 1 to 5, characterized in that: An air duct is arranged on the upper part of the sewage tank, and a first air outlet and a second air outlet are arranged on both sides of the air duct respectively; The vacuum system includes a bracket, a blocking component and an air outlet pipe; The bracket is arranged in the sewage tank; The blocking component can be slidably disposed on the bracket, and the blocking component can seal the first air outlet; One end of the air outlet pipe is connected to the second air outlet, and the other end of the air outlet pipe extends out of the sewage tank and can be connected to the fan.

7. The cleaning robot sewage tank system according to claim 6, characterized in that: The top cover and the upper part of the sewage tank enclose the air duct; The blocking assembly includes a floating member and a blocking plate. The floating member can be slidably arranged on the bracket. The blocking plate is fixed on the floating member, and the blocking plate can seal the first air outlet.

8. The cleaning robot sewage tank system according to claim 7, characterized in that: Soft rubber plugs are provided at the first air outlet and the second air outlet, and the soft rubber plugs can be pressed by the plugging plate to seal the first air outlet.

9. A cleaning robot, characterized in that: The cleaning robot sewage tank system comprises the cleaning robot sewage tank system according to any one of claims 1 to 8.

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