Sewage tank, sewage collecting mechanism and cleaning equipment

Abstract

The utility model discloses a sewage tank, a sewage collecting mechanism and cleaning equipment, the sewage tank comprises a tank body and a water collecting tank, a liquid storage cavity is formed in the tank body, and a suction channel assembly communicating with the liquid storage cavity is arranged at the top of the tank body; and the water collecting tank is arranged outside the box body and is communicated with the liquid storage cavity. The problem that the sewage collection effect of the sewage tank is poor is solved.

Description

Technical Field

[0001] The present application relates to the field of cleaning technology, and in particular to a sewage tank, a sewage collection mechanism and a cleaning device. Background Art

[0002] A sweeper is a type of smart home appliance that can automatically clean the floor in a room with certain artificial intelligence. When the cleaning parts of the sweeper (such as a roller mop) are cleaning the floor, the sweeper will spray water on the roller to fully soak the mop on the roller to achieve a better cleaning effect on the floor. The scraper bar set on the roller will scrape the mop to scrape the sewage on the mop into the sewage tank of the sweeper. After the sweeper enters the base station, the base station will collect and treat the sewage in the sewage tank (such as directly discharging it, or purifying it and supplying it to the sweeper for secondary use). At present, the sewage tank mainly collects sewage by gravity, that is, after the sewage is scraped off by the scraper bar, it directly falls into the sewage tank set opposite to the scraper bar. However, the sewage tank under this structure needs to have a large water inlet for sewage collection, so the sealing is poor and the sewage collection effect is poor. For example, when the sewage tank is drawn out, the residual sewage that is not collected in the sewage tank will fall on the ground. Utility Model Content

[0003] The main purpose of the present application is to provide a sewage tank, a sewage collection mechanism and a cleaning device to solve the problem of poor sewage collection effect of the sewage tank mentioned in the background technology.

[0004] According to one aspect of the present application, there is provided a sewage tank, comprising:

[0005] A box body, wherein a liquid storage cavity is arranged in the box body, and a suction channel assembly communicating with the liquid storage cavity is arranged on the top of the box body;

[0006] A water collecting tank is arranged outside the box body and is communicated with the liquid storage cavity.

[0007] Furthermore, the liquid storage cavity comprises a top surface, a connecting channel is provided between the water collecting tank and the liquid storage cavity, and a port through which the connecting channel communicates with the water collecting tank is at a predetermined distance from the top surface.

[0008] Furthermore, the suction channel assembly comprises:

[0009] A suction hole, the suction hole is arranged through the box body;

[0010] A waterproof connecting pipe is connected to the suction hole, and is used to prevent the liquid in the liquid storage cavity from flowing out along the suction hole.

[0011] Furthermore, the waterproof connecting pipe comprises:

[0012] A connecting piece, the connecting piece is plugged into the suction hole, a vent hole is provided through the connecting piece, and the vent hole connects the liquid storage cavity with the outside of the box body;

[0013] A buckle cover portion, the buckle cover portion is connected to the connecting piece and is located in the liquid storage cavity, a first waterproof groove is provided on one side of the buckle cover portion close to the top surface, the vent hole is connected to the first waterproof groove, a notch of the first waterproof groove is close to the top surface and there is a predetermined gap between the first waterproof groove and the top surface.

[0014] Furthermore, the connecting piece includes:

[0015] A connecting section, the connecting section is inserted into the suction hole and connected to the buckle cover portion;

[0016] The mounting section is connected to an end of the connecting section away from the buckle cover portion and is located outside the box body, and the vent hole is arranged through the connecting section and the mounting section.

[0017] Further, the water collecting tank is located at the bottom of the box body, the water collecting tank includes a first tank wall close to the liquid storage cavity, and the connecting channel includes:

[0018] A guide hole is provided through the first groove wall to connect the water collecting groove with the liquid storage cavity.

[0019] Furthermore, the axis of the guide hole is inclined toward a direction close to the top surface.

[0020] Furthermore, the connection channel also includes:

[0021] A connecting tube is located in the liquid storage cavity, the connecting tube is connected to a port of the guide hole located in the liquid storage cavity, and one end of the connecting tube away from the guide hole is closer to the top surface than the guide hole.

[0022] Furthermore, the connecting pipe comprises:

[0023] A first connecting section is communicated with the guide hole, and the first connecting section is inclined in a direction close to the top surface.

[0024] Furthermore, the connecting pipe further comprises:

[0025] The second connecting section includes a first port and a second port, the first port is communicated with the first connecting section, and the second port is closer to the top surface than the first port.

[0026] Furthermore, a guide groove is provided at the bottom of the water collecting groove, and the guide groove is connected with the guide hole.

[0027] Furthermore, the bottom of the water collecting trough includes a first trough surface and a second trough surface, the first trough surface and the second trough surface are respectively located on opposite sides of the guide trough, the first trough surface is inclined upwardly toward the top surface on the side away from the guide trough; and / or the second trough surface is inclined upwardly toward the top surface on the side away from the guide trough.

[0028] Furthermore, the box body is also provided with a sewage extraction channel, the sewage extraction channel is communicated with the liquid storage cavity, and the sewage tank further includes:

[0029] A one-way valve is arranged in the sewage extraction channel.

[0030] Furthermore, it also includes:

[0031] A water level detection component is used to detect the amount of liquid in the liquid storage chamber.

[0032] Furthermore, the water level detection component comprises:

[0033] A floating member, the floating member is disposed in the liquid storage cavity and can move up and down along with the liquid level of the liquid in the liquid storage cavity;

[0034] A position sensor is arranged on the box body, and is used to detect the position of the floating member in the liquid storage cavity.

[0035] Furthermore, the water level detection component also includes:

[0036] The guide column is arranged in the liquid storage cavity, and the floating member is sleeved on the guide column and can move relative to the guide column along the axial direction of the guide column.

[0037] Furthermore, the box includes:

[0038] A base, on which the water collecting tank is arranged;

[0039] A first cover plate, the first cover plate is arranged on one side of the water collecting tank and is arranged between the outer wall surface of the water collecting tank to form a liquid storage tank;

[0040] A second cover plate, the second cover plate is buckled on the liquid storage tank to surround the tank wall of the liquid storage tank to form the liquid storage cavity;

[0041] A sealing member is disposed between the first cover plate, the second cover plate and the water collecting tank, and is used to seal an installation gap between the first cover plate, the second cover plate and the water collecting tank.

[0042] According to another aspect of the present application, there is provided a sewage collection mechanism, comprising:

[0043] The sewage tank;

[0044] A negative pressure pumping device is connected to the suction channel assembly of the sewage tank, and is used to pump negative pressure into the liquid storage chamber so that the air pressure of the liquid storage chamber is lower than the air pressure of the water collection tank.

[0045] Furthermore, the negative pressure extraction device comprises:

[0046] An air extraction member, wherein the air extraction member comprises an air extraction port;

[0047] An air circuit connecting pipe is connected between the air suction port and the suction channel assembly.

[0048] According to another aspect of the present application, there is provided a cleaning device, comprising:

[0049] A body, wherein the body is provided with a receiving cavity;

[0050] A cleaning mechanism, the cleaning mechanism comprising a cleaning member and a wiper, the cleaning member and the wiper are both installed in the storage cavity, and the wiper abuts against the cleaning member;

[0051] The sewage collecting mechanism, the sewage tank of the sewage collecting mechanism is arranged in the body and located on one side of the cleaning member, and the water collecting trough of the sewage tank is used to collect the sewage scraped from the cleaning member by the wiper.

[0052] The sewage tank provided by the present application mainly includes a box body and a water collecting tank arranged outside the box body, a liquid storage cavity is arranged in the box body, and a suction channel assembly connected with the liquid storage cavity is arranged on the top of the box body. The water collecting tank is connected with the liquid storage cavity so that the sewage collected in the water collecting tank can enter the liquid storage cavity for storage. The present application can connect the suction channel assembly with the negative pressure device, so that the sewage pre-collected in the water collecting tank can be quickly sucked into the liquid storage cavity for storage through the negative pressure device, the sewage can be fully sucked into the liquid storage cavity, and no sewage will remain in the water collecting tank. The sewage tank structure under the relative gravity collection method has better sealing performance, the sewage is not easy to leak out, and the sewage collection efficiency and effect are better. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0054] Figure 1 A schematic diagram of the structure of a cleaning device provided in one embodiment of the present application;

[0055] Figure 2 for Figure 1 Schematic diagram of the bottom structure of the cleaning equipment;

[0056] Figure 3 It is a structural schematic diagram of a sewage tank;

[0057] Figure 4 for Figure 3 The schematic diagram of the structure of the sewage tank after the waterproof connecting pipe on the sewage tank is removed;

[0058] Figure 5 for Figure 4 A schematic diagram of the structure of the sewage tank after the first cover plate is removed;

[0059] Figure 6 It is a schematic diagram of the structure of the waterproof connection pipeline;

[0060] Figure 7 for Figure 4 A schematic diagram of the internal structure of the sewage tank after removing the second cover;

[0061] Figure 8 It is a top view of the sewage tank;

[0062] Fig. 9 It is a cross-sectional view of the sewage tank in the AA direction;

[0063] Fig.10 It is a cross-sectional view of the sewage tank in the BB direction;

[0064] Fig.11 It is a schematic diagram of the connection between the sewage tank and the negative pressure extraction device;

[0065] Fig.12 A schematic diagram of a connection nozzle provided on a mounting shell;

[0066] Fig.13 for Fig.12 A schematic diagram of one side of the connection nozzle and the suction channel assembly of the sewage tank;

[0067] Fig.14 It is a schematic diagram of the connection between the wiper blade and the cleaning member;

[0068] Fig.15 for Fig.14 A magnified schematic diagram of part C;

[0069] Fig.16 is a schematic diagram of the structure of a wiper;

[0070] Fig.17 is a schematic structural diagram of a first side surface of a wiper blade;

[0071] Fig.18 It is a schematic diagram of the structure of the wiper blade at another angle;

[0072] Fig.19 is a front view of the wiper blade;

[0073] Fig. 20 for Fig.19 Cross-sectional view of the middle wiper blade in the DD direction;

[0074] Fig.21 It is a schematic diagram of the installation between the connecting bracket, the wiper blade and the roller driving component;

[0075] Fig. 22 Schematic diagram of the exploded view of the connecting bracket.

[0076] The above drawings include the following reference numerals:

[0077] 10. body; 11. storage chamber; 12. opening; 13. mounting shell; 131. connection nozzle; 132. sealing ring; 14. refill indicator;

[0078] 20. Cleaning mechanism; 21. Cleaning member; 211. Driving member; 111. Mounting seat; 112. Driving motor; 113. Bearing; 114. Connector; 212. Roller; 22. Wiper; 221. Plate body; 2211. First side surface; 2212. Second side surface; 2121. Convex arc surface; 213. Drainage groove; 2131. Diversion slope; 214. Water outlet; 222. Wiper; 2221. First side surface wall; 223, drain outlet; 224, filter structure; 2241, filter hole; 23, connecting bracket; 231, first bracket; 311, sliding space; 312, buckle groove; 232, second bracket; 233, mounting bracket; 24, elastic connecting component; 241, torsion spring; 242, rotating shaft; 25, sliding connecting component; 251, slide groove; 252, sliding boss; 26, first locking member; 27, second locking member;

[0079] 30. Clean water tank;

[0080] 40. Sewage tank; 41. Box body; 411. Liquid storage chamber; 4111. Top surface; 412. Base; 413. First cover plate; 414. Second cover plate; 415. Sealing member; 42. Suction channel assembly; 421. Suction hole; 423. Waterproof connecting pipe; 4231. Connecting member; 2311. Connecting section; 2312. Mounting section; 2313. Ventilation hole; 4232. Covering part; 2321. First waterproof groove; 43. Water collecting groove; 431. First groove wall; 432. Guide groove; 433, first groove surface; 434, second groove surface; 44, connecting channel; 441, guide hole; 442, connecting pipe; 4421, first connecting section; 4422, second connecting section; 4221, first port; 4222, second port; 45, sewage extraction channel; 46, water level detection component; 461, floating part; 462, position sensor; 463, guide column; 47, negative pressure extraction device; 471, first vacuum pump; 472, air path connecting pipe; 48, snap button;

[0081] 50. Side brush assembly;

[0082] 60. Dust box; 61. Air suction dust collection port; 62. Air blowing dust collection port; 63. Second vacuum pump;

[0083] 70. Middle sweep assembly;

[0084] 80. Walking components. DETAILED DESCRIPTION

[0085] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0086] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0087] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0088] The existing sewage tank 40 that uses the gravity of sewage to collect sewage has poor sewage collection effect and is prone to water spillage, especially when the cleaning equipment with the sewage tank 40 is tilted or even turned over, the sewage is easy to spill out, causing secondary pollution to the surface to be cleaned or even flowing into the cleaning equipment to damage important components. Therefore, it is urgent to design a sewage tank 40 structure that is not prone to water spillage and leakage even when the cleaning equipment is turned over. The cleaning equipment in this embodiment can be a cleaning robot or a cleaning robot and a base station combination.

[0089] For this, see Figures 1 to 13 The first embodiment of the utility model provides a sewage tank 40. The sewage tank 40 in this embodiment can be arranged in a cleaning device. Figure 1 and Figure 2 As shown, the cleaning device mainly includes a body 10 and a cleaning mechanism 20. The body 10 is provided with a storage chamber 11. The cleaning mechanism 20 includes a cleaning member 21 and a wiper 22, both of which are installed in the storage chamber 11, and the wiper 22 abuts against the cleaning member 21. A sewage tank 40 is provided in the body 10 and located on one side of the cleaning member 21, and the sewage tank 40 is used to collect sewage scraped from the cleaning member 21 by the wiper 22.

[0090] Specifically, see Figures 3 to 7As shown, the sewage tank 40 includes a box body 41 and a water collecting tank 43, and the water collecting tank is used to receive the sewage scraped from the cleaning member 21 by the wiper 22. A liquid storage chamber 411 is provided in the box body 41, and a suction channel assembly 42 connected to the liquid storage chamber 411 is provided on the top of the box body 41. The water collecting tank 43 is provided outside the box body 41, and the water collecting tank 43 is connected to the liquid storage chamber 411. In this embodiment, the negative pressure extraction device 47 can be connected to the suction channel assembly 42 to perform negative pressure extraction operation on the liquid storage chamber 411 through the negative pressure extraction device 47, and the air pressure in the liquid storage chamber 411 is extracted to be lower than the air pressure of the sump 43, so that the sewage in the sump 43 can be quickly sucked into the liquid storage chamber 411 for storage under the action of the negative pressure in the liquid storage chamber 411, and the sewage can be fully sucked into the liquid storage chamber 411, and no sewage will remain in the sump. The sewage tank 40 under the relative gravity collection method has better structural sealing, and the sewage is not easy to leak out, and the sewage collection efficiency and effect are better.

[0091] Moreover, since the suction channel assembly 42 is located at the top of the box body 41, it can ensure that the suction channel assembly 42 is prevented from contacting with the sewage when the liquid storage chamber 411 stores a certain amount of sewage, and prevent the sewage from entering the suction channel assembly 42 to affect the negative pressure pumping operation. Among them, the liquid storage chamber 411 includes a top surface 4111, and the top surface 4111 is located at the top of the box body 41 and located in the liquid storage chamber 411. The water collection tank 43 is arranged outside the box body 41, and a connecting channel 44 is arranged between the water collection tank 43 and the liquid storage chamber 411, and a predetermined distance is provided between the port where the connecting channel 44 communicates with the water collection tank 43 and the top surface 4111. Therefore, after the sewage tank 40 is turned over 180 degrees, since there is a predetermined distance between the port where the connecting channel 44 communicates with the water collection tank 43 and the top surface 4111, the sewage in the sewage tank 40 is not easy to flow out of the liquid storage chamber 411, and before the cleaning equipment enters the base station to allow the base station to recycle the sewage, the storage of the sewage is safer and more reliable.

[0092] It can be seen that the sewage tank 40 provided in this embodiment mainly includes a box body 41 and a water collection tank 43 arranged outside the box body 41, a liquid storage chamber 411 is arranged in the box body 41, and a suction channel assembly 42 connected to the liquid storage chamber 411 is arranged on the top of the box body 41, and the liquid storage chamber 411 includes a top surface 4111, which is located at the top of the box body 41 and in the liquid storage chamber 411. A connecting channel 44 is arranged between the water collection tank 43 and the liquid storage chamber 411, so that the sewage collected in the water collection tank 43 can enter the liquid storage chamber 411 along the connecting channel 44 for storage. Since there is a predetermined distance between the port where the connecting channel 44 communicates with the water collecting tank 43 and the top surface 4111, after the cleaning device with the sewage tank 40 is turned over, the top surface 4111 of the liquid storage chamber 411 will be located at the bottom of the turned-over cleaning device, while the port where the connecting channel 44 communicates with the water collecting tank 43 is located at the upper part of the turned-over cleaning device, that is, the water level at the port where the connecting channel 44 communicates with the water collecting tank 43 is higher than the water level at the top surface 4111, and at this time, the sewage in the sewage tank 40 will not easily flow out of the liquid storage chamber 411. Even if the sewage tank 40 is shaken with great intensity, it is not easy for the sewage tank 40 to leak water, thereby preventing the sewage from flowing out to cause secondary pollution or even damage the electrical components in the cleaning device.

[0093] like Figure 1 and Figure 2 As shown, the body 10 of the cleaning device may include a mounting shell 13, and the cleaning device also includes a walking assembly 80, a clean water tank 30, a side brush assembly 50, a dust box 60, and a middle sweep assembly 70. The mounting shell 13 is the main frame of the cleaning device, and the clean water tank 30 and the sewage tank 40 are both connected to the body 10 through the mounting shell 13. The walking assembly 80 is arranged at the bottom of the mounting shell 13 and is misplaced in the storage chamber 11. The walking assembly 80 is used to drive the cleaning device to travel to the area to be cleaned for cleaning. The clean water tank 30 is used to provide clean water to the cleaning member 21 to soak the cleaning member 21 and improve the cleaning effect of the cleaning member 21 on the surface to be cleaned. A clean water injection port is provided on the clean water tank 30. When the cleaning device enters the base station, the clean water injection port is connected to the clean water bucket of the base station so that the base station injects clean water into the clean water tank 30. The storage chamber 11 is arranged at the bottom of the mounting shell 13, and the water collection tank 43 of the sewage tank 40 is located below the wiper 22 to collect the sewage scraped from the cleaning member 21 by the wiper 22. The sewage tank 40 is provided with a sewage extraction channel 45 on the box body 41, and the sewage extraction channel 45 is used to communicate with the sewage bucket of the base station when the cleaning device enters the base station, so as to discharge the sewage stored in the liquid storage chamber 411 into the sewage bucket of the base station. As one of the core components of the cleaning device, the side brush assembly 50 is installed at the edge of the bottom of the installation shell 13 to clean the corners and walls and other areas that are usually ignored.

[0094] The middle sweep assembly 70 of the cleaning device is arranged on the bottom surface of the mounting shell 13 and is staggered in the middle area of ​​the storage chamber 11. The middle sweep assembly 70 is the main cleaning component of the cleaning device, and is used to sweep the garbage on the driving path of the cleaning device into the dust box 60. The dust box 60 is arranged at a position close to the middle sweep assembly 70 of the mounting shell 13. A second vacuum pump 63 for pumping negative pressure to the dust box 60 is arranged in the body 10, so that the dust box 60 can suck in and temporarily store the garbage cleaned by the middle sweep assembly 70 and the side brush assembly 50 through the second vacuum pump 63. In addition, the bottom of the body 10 of this embodiment is also provided with an air suction dust collection port 61 and an air blowing dust collection port 62 connected to the dust box 60. The base station is provided with a dust collecting fan. After the cleaning device moves to the base station, the air suction dust collection port 61 and the air blowing dust collection port 62 are connected to the dust collecting fan, so that the garbage in the dust box 60 is recovered into the dust collection box of the base station. In addition, a recharge indicator 14 is also provided on the main body 10, and the recharge indicator 14 is used to indicate that the cleaning device is low on power and needs to return to the base station to recharge the power.

[0095] See also Figures 4 to 6 The suction channel assembly 42 disposed at the top of the housing 41 of the sewage tank 40 includes a suction hole 421 and a waterproof connecting pipe 423. The suction hole 421 is disposed through the housing 41 to connect the liquid storage chamber 411 in the housing 41 with the external environment of the housing 41. The waterproof connecting pipe 423 is connected to the suction hole 421, and the waterproof connecting pipe 423 is used to prevent the liquid in the liquid storage chamber 411 from flowing out along the suction hole 421. Therefore, although the present embodiment can directly connect the negative pressure extraction device 47 with the suction hole 421 to perform a negative pressure extraction operation on the liquid storage chamber 411, the risk of sewage flowing into the negative pressure extraction device 47 along the suction hole 421 is relatively high. Therefore, the present embodiment preferably connects the negative pressure extraction device 47 with the waterproof connecting pipe 423. Since the waterproof connecting pipe 423 can prevent the liquid in the liquid storage chamber 411 from flowing out along the suction hole 421, it can also prevent sewage from entering the negative pressure pumping device 47, thereby avoiding the sewage from polluting or even damaging the negative pressure pumping device 47, thereby improving the service life of the negative pressure pumping device 47, and thus ensuring the sewage collection efficiency of the entire sewage tank 40.

[0096] Specifically, Figure 6As shown, the waterproof connection pipe 423 in this embodiment may include a connecting piece 4231 and a buckle cover part 4232. The connecting piece 4231 is plugged into the suction hole 421, and a vent hole 2313 is provided in the connecting piece 4231, and the vent hole 2313 connects the liquid storage chamber 411 with the outside of the box body 41. One end of the connecting piece 4231 away from the liquid storage chamber 411 is located outside the box body 41, and the negative pressure extraction device 47 is connected to the end of the connecting piece 4231 located outside the box body 41 and communicates with the vent hole 2313 in the connecting piece 4231. The buckle cover part 4232 is connected to the connecting piece 4231 and is located in the liquid storage chamber 411. A first waterproof groove 2321 is provided on one side of the buckle cover part 4232 close to the top surface 4111, and the vent hole 2313 is connected to the first waterproof groove 2321. The notch of the first waterproof groove 2321 is abutted against the top surface 4111 and has a predetermined gap with the top surface 4111, so that the liquid storage chamber 411 can be connected with the negative pressure extraction device 47 along the predetermined gap, ensuring that the negative pressure extraction device 47 can evacuate the liquid storage chamber 411 until the air pressure in the liquid storage chamber 411 is lower than the air pressure in the water collecting tank 43 (since the water collecting tank 43 is located outside the box body 41, the air pressure in the water collecting tank 43 is atmospheric pressure). Since the notch of the first waterproof groove 2321 is close to the top surface 4111, that is, the notch of the first waterproof groove 2321 will be away from the sewage surface in the liquid storage chamber 411. When the sewage surface is lower than the top surface 4111, the sewage will not enter the first waterproof groove 2321 along the notch of the first waterproof groove 2321, and will not enter the negative pressure pumping device 47 along the vent 2313 connected to the first waterproof groove 2321, thereby improving the waterproof performance of the negative pressure pumping device 47 and preventing the negative pressure pumping device 47 from being contaminated or even damaged by the flowing sewage.

[0097] See also Fig.11, the negative pressure extraction device 47 in this embodiment may specifically include an air extraction member and an air circuit connecting pipe 472. The air extraction member includes an air extraction port, and the air circuit connecting pipe 472 is connected between the air extraction port and the suction channel assembly 42, so that the air extraction member can perform a negative pressure extraction operation on the liquid storage chamber 411 through the air circuit connecting pipe 472. The air circuit connecting pipe 472 is specifically connected to the waterproof connecting pipe 423. Since the waterproof connecting pipe 423 can prevent the liquid in the liquid storage chamber 411 from flowing into the air circuit connecting pipe 472 along the suction hole 421, the air extraction member is prevented from being contaminated by sewage. The air extraction member in this embodiment may include one of a blower, a first vacuum pump 471, etc. Among them, since the negative pressure that the blower can provide is relatively small, it is mainly used in occasions where the vacuum degree requirement is not high. Since this embodiment has a high requirement for the vacuum degree of the liquid storage chamber 411, it is ensured that when the air pressure of the liquid storage chamber 411 is lower than the air pressure of the water collection tank 43, the sewage in the water collection tank 43 can be efficiently and timely sucked into the liquid storage chamber 411. Therefore, the vacuum pump in this embodiment is preferably a first vacuum pump 471, and the first vacuum pump 471 may specifically include a liquid ring vacuum pump, a rotary vane vacuum pump, a dry screw vacuum pump, etc. The first vacuum pump 471 can evacuate the liquid storage chamber 411 to obtain a vacuum in the liquid storage chamber 411, so that the sewage in the sump 43 can be efficiently and timely sucked into the liquid storage chamber 411 for storage.

[0098] like Figure 6 As shown, in this embodiment, the connecting piece 4231 of the waterproof connecting pipe 423 includes a connecting section 2311 and a mounting section 2312. The connecting section 2311 is inserted into the suction hole 421 and connected to the buckle cover portion 4232. The mounting section 2312 is connected to one end of the connecting section 2311 away from the buckle cover portion 4232 and is located outside the box body 41. The vent 2313 is provided through the connecting section 2311 and the mounting section 2312, so that when the mounting section 2312 is connected to the air circuit connecting pipe 472 of the negative pressure device 47, the liquid storage chamber 411 can be connected to the air circuit connecting pipe 472 through the vent 2313. The connecting piece 4231 has a simple structure and is easy to install.

[0099] In order to further improve the waterproof performance of the waterproof connecting pipe 423 and prevent sewage from entering the negative pressure pumping device 47, a second waterproof groove is provided at a position near the first waterproof groove 2321 on the top surface 4111 of the liquid storage chamber 411, and the notch of the first waterproof groove 2321 is close to the bottom of the second waterproof groove. That is, the predetermined gap between the first waterproof groove 2321 and the top surface 4111 is located at the bottom of the second waterproof groove, and the groove wall of the second waterproof groove can prevent sewage from splashing into the predetermined gap, further ensuring that sewage will not enter the negative pressure pumping device 47 along the connecting piece 4231 from the predetermined gap.

[0100] like Figure 5 and Fig. 9As shown, the water collecting tank 43 in this embodiment is located at the bottom of the box body 41, and the water collecting tank 43 includes a first slot wall 431 close to the liquid storage chamber 411. The connecting channel 44 includes a guide hole 441, and the guide hole 441 is arranged through the first slot wall 431 to connect the water collecting tank 43 with the liquid storage chamber 411. Since the water collecting tank 43 is located at the bottom of the box body 41, there is a certain distance between the water collecting tank 43 and the top surface 4111 of the liquid storage chamber 411, which also makes the port where the guide hole 441 communicates with the water collecting tank 43 and the top surface 4111, and the guide hole 441 as a whole and the top surface 4111 have a predetermined distance. After the sewage tank 40 is turned over, the water level of the guide hole 441 is higher than the water level of the top surface 4111, and the sewage in the liquid storage chamber 411 will not easily flow out from the guide hole 441.

[0101] The axis of the guide hole 441 is inclined toward the top surface 4111. Therefore, when the sewage tank 40 is placed normally without being turned over, after the sewage is sucked into the liquid storage chamber 411 through the guide hole 441, the sewage is not easy to flow back to the water collection tank 43 through the guide hole 441.

[0102] If the port of the connecting channel 44 in the liquid storage chamber 411 is located at a lower position, such as at the bottom of the liquid storage chamber 411, after the sewage enters, the port of the connecting channel 44 in the liquid storage chamber 411 may be blocked by the sewage, affecting the subsequent entry of sewage, especially when there are solid garbage such as soil particles in the sewage, the port of the connecting channel 44 in the liquid storage chamber 411 is blocked, and it is difficult for the sewage to enter the liquid storage chamber 411. In this regard, the connecting channel 44 in the present embodiment also includes a connecting pipe 442, and the connecting pipe 442 is located in the liquid storage chamber 411. The connecting pipe 442 is connected to the port of the guide hole 441 in the liquid storage chamber 411, and the end of the connecting pipe 442 away from the guide hole 441 is closer to the top surface 4111 than the guide hole 441, so that the water inlet position of the sewage in the liquid storage chamber 411 is improved through the connecting pipe 442, and the sewage is prevented from blocking the water inlet port of the connecting channel 44 in the liquid storage chamber 411.

[0103] Specifically, see Figure 5 , Figure 7 as well as Fig. 9 The connecting pipe 442 includes a first connecting section 4421, which is connected to the guide hole 441 and is inclined in a direction close to the top surface 4111. Therefore, when the sewage tank 40 is not turned over, the first connecting section 4421 can further prevent the sewage from flowing back to the sump 43 along the connecting pipe 442.

[0104] The connecting pipe 442 in this embodiment further includes a second connecting section 4422, and the second connecting section 4422 includes a first port 4221 and a second port 4222. The first port 4221 is connected to the first connecting section 4421, and the second port 4222 is closer to the top surface 4111 than the first port 4221. Figure 7 As shown, the second connecting section 4422 is bent and the second port 4222 away from the first connecting section 4421 is closer to the top surface 4111 than the first port 4221, thereby raising the water inlet position of the sewage in the liquid storage chamber 411. The second port 4222 is not easily blocked by the sewage, ensuring that the subsequent sewage enters the liquid storage chamber 411 smoothly. The bent second connecting section 4422 is also less likely to divert the sewage to the outside.

[0105] like Figures 8 to 10 As shown, the bottom of the water collecting tank 43 of this embodiment is provided with a guide groove 432, and the guide groove 432 is connected with the guide hole 441. When the water collecting tank 43 is located at the bottom of the box body 41, since the guide hole 441 is connected with the guide groove 432 at the bottom of the water collecting tank 43, it can be ensured that there is a large predetermined distance between the port of the guide hole 441 located in the liquid storage cavity 411 and the top surface 4111. When the liquid storage cavity 411 of the sewage tank 40 stores a lot of sewage, the sewage is not easy to flow out of the liquid storage cavity 411 when the sewage tank 40 is turned over.

[0106] Among them, Fig.10 As shown, the bottom of the water collecting tank 43 includes a first tank surface 433 and a second tank surface 434, and the first tank surface 433 and the second tank surface 434 are respectively located on opposite sides of the guide groove 432. The side of the first tank surface 433 away from the guide groove 432 is inclined upward toward the direction close to the top surface 4111, and the side of the second tank surface 434 away from the guide groove 432 is inclined upward toward the direction close to the top surface 4111, so that after the sewage enters the water collecting tank 43, it will be quickly guided to the guide groove 432 along the first tank surface 433 and the second tank surface 434, so that the sewage gathers at the guide groove 432, ensuring that all the sewage is sucked into the liquid storage chamber 411.

[0107] In addition, if Figure 1 , Figure 5 as well as Fig.11As shown, the box body 41 of this embodiment is also provided with a sewage extraction channel 45, which is connected to the liquid storage chamber 411. When the cleaning equipment enters the base station, the sewage extraction channel 45 is used to connect the sewage tank 40 with the sewage bucket of the base station, so that the base station can recycle the sewage in the liquid storage chamber 411 of the sewage tank 40 (the treatment method includes directly discharging it into the sewer, or purifying the sewage and then transporting it to the clean water tank 30 of the cleaning equipment for secondary use). The sewage tank 40 also includes a one-way valve, which is arranged in the sewage extraction channel 45. When the sewage extraction channel 45 is connected to the sewage bucket of the base station, the one-way valve is opened. During the process of the liquid storage chamber 411 of the sewage tank 40 being pumped with negative pressure by the negative pressure device 47 to collect sewage, the one-way valve is always closed to prevent the liquid storage chamber 411 from leaking and affecting the negative pressure pumping effect. In addition, in order to improve the air tightness of the liquid storage chamber 411, a sealing ring 132 can also be arranged at the installation gap between the one-way valve and the sewage extraction channel 45.

[0108] like Figure 5 , Figure 7 as well as Fig.11 As shown, the sewage tank 40 in this embodiment also includes a water level detection component 46, which is used to detect the amount of liquid in the liquid storage chamber 411, so that when the sewage in the liquid storage chamber 411 reaches a certain amount, the controller of the cleaning equipment controls the negative pressure pumping device 47 to stop working, and makes the cleaning equipment return to the base station for sewage recycling. At the same time, by monitoring the amount of sewage through the water level detection component 46, it is possible to avoid the storage chamber 411 storing too much sewage, which may cause damage to the storage chamber 411, or cause sewage to enter the negative pressure pumping device 47 under pressure and damage the first vacuum pump 471. The amount of liquid can be measured by the liquid height or liquid volume in the sewage tank 40, and the amount of liquid in the sewage tank 40 is usually measured by the liquid height.

[0109] like Figure 7 as well as Fig.11As shown, the water level detection assembly 46 in this embodiment includes a floating member 461 and a position sensor 462. The floating member 461 is arranged in the liquid storage chamber 411 and can move up and down with the liquid level of the liquid in the liquid storage chamber 411, that is, the position of the floating member 461 in the liquid storage chamber 411 changes with the change of the sewage water volume. The position sensor 462 is arranged on the box body 41, and the position sensor 462 is used to detect the position of the floating member 461 in the liquid storage chamber 411. The position sensor 462 can be electrically connected to the controller of the cleaning equipment, that is, the position sensor 462 and the first vacuum pump 471 are located in the same control loop of the cleaning equipment. When the amount of sewage is large, the floating member 461 will float to a position close to the top surface 4111. At this time, the position sensor 462 detects the floating member 461. In response to the information of the floating member 461 detected by the position sensor 462, the controller controls the first vacuum pump 471 to stop operating. At this time, the cleaning equipment can enter the base station, and the base station recycles the sewage in the liquid storage chamber 411 through the sewage extraction channel 45 on the sewage tank 40. The floating member 461 in this embodiment can be a magnetic float, and the position sensor 462 includes a magnetic induction switch. The magnetic induction switch is an electronic switch that uses the principle of magnetic field induction. When the magnetic float approaches the magnetic induction switch, the state of the contacts of the magnetic induction switch changes, and finally the on / off control function is realized. The magnetic induction switch is preferably a Hall switch because the magnetic field detection method of the Hall switch is stable and reliable, and the external interference is small. Specifically, the Hall switch can be disposed on a side of the mounting shell 13 close to the sewage tank 40 and arranged opposite to the magnetic float in the sewage tank 40, so as to detect the magnetic float accurately and timely.

[0110] Among them, as the floating member 461 (such as a magnetic float) rises to a position close to the top surface 4111 as the amount of sewage increases, the position of the floating member 461 relative to the position sensor 462 (such as a Hall switch) may deviate greatly, thereby causing the position sensor 462 to be unable to accurately detect the floating member 461. In this regard, the water level detection component 46 provided in this embodiment also includes a guide column 463, which is arranged in the liquid storage chamber 411. The floating member 461 is sleeved on the guide column 463 and can move relative to the guide column 463 along the axial direction of the guide column 463. The guide column 463 is used to limit the movement trajectory of the floating member 461 during the lifting and lowering process to prevent the floating member 461 from deviating from the position sensor 462, thereby improving the accuracy of the water level detection component 46 in detecting the water volume.

[0111] Specifically, see Figure 4 and Figure 5The box body 41 in this embodiment includes a base 412, a first cover plate 413, a second cover plate 414 and a sealing member 415. The sealing member 415 may include a silicone seal ring, a fluororubber seal ring, or the like. The water collecting tank 43 is disposed on the base 412. The first cover plate 413 is disposed on one side of the water collecting tank 43 and is surrounded with the outer wall surface of the water collecting tank 43 to form a liquid storage tank. The second cover plate 414 is buckled on the liquid storage tank to be surrounded with the tank wall of the liquid storage tank to form a liquid storage cavity 411. The first tank wall 431 of the water collecting tank 43 is located on a side of the base 412 close to the liquid storage cavity 411. The top surface 4111 of the liquid storage cavity 411 is located on a side of the first cover plate 413 away from the base 412, and the sewage extraction channel 45 is disposed on a side of the second cover plate 414 away from the water collecting tank 43. The seal 415 is disposed between the first cover plate 413 and the second cover plate 414 and the water collecting tank 43. The seal 415 is used to seal the installation gap between the first cover plate 413 and the second cover plate 414 and the water collecting tank 43, thereby improving the air tightness of the liquid storage chamber 411 and improving the negative pressure extraction efficiency of the negative pressure extraction device 47.

[0112] The second embodiment of the utility model provides a sewage collection mechanism, which includes a sewage tank 40 and a negative pressure device 47 provided in the first embodiment of the utility model. The negative pressure device 47 is connected to the suction channel assembly 42 of the sewage tank 40. The negative pressure device 47 is used to pump negative pressure into the liquid storage chamber 411 to make the air pressure of the liquid storage chamber 411 lower than the air pressure of the water collection tank 43, so that when the air pressure in the liquid storage chamber 411 is lower than the air pressure in the water collection tank 43, the sewage in the water collection tank 43 can be sucked into the liquid storage chamber 411, and the sewage is preserved by the liquid storage chamber 411, thereby reducing the risk of sewage spilling out of the sewage tank 40. When the sewage tank 40 is turned over or shaken with greater intensity, the sewage tank 40 is not prone to spillage and leakage, thereby avoiding secondary pollution caused by sewage outflow or even damage to electrical components in the cleaning equipment.

[0113] The negative pressure extraction device 47 in this embodiment includes an air extraction member and an air circuit connecting pipe 472. The air extraction member includes an air extraction port, and the air circuit connecting pipe 472 is connected between the air extraction port and the suction channel assembly 42, so that the air extraction member can perform a negative pressure extraction operation on the liquid storage chamber 411 through the air circuit connecting pipe 472. The air circuit connecting pipe 472 is specifically connected to the waterproof connecting pipe 423 of the sewage tank 40. Since the waterproof connecting pipe 423 can prevent the liquid in the liquid storage chamber 411 from flowing into the air circuit connecting pipe 472 along the suction hole 421, the air extraction member is prevented from being contaminated by sewage. The air extraction member in this embodiment may include one of a fan, a first vacuum pump 471, etc. Among them, since the negative pressure that the fan can provide is relatively small, it is mainly used in occasions where the vacuum degree requirement is not high. Since the present embodiment has a high requirement on the vacuum degree of the liquid storage chamber 411, it is ensured that when the air pressure of the liquid storage chamber 411 is lower than the air pressure of the water collection tank 43, the sewage in the water collection tank 43 can be efficiently and timely sucked into the liquid storage chamber 411. Therefore, the vacuum element in the present embodiment is preferably a first vacuum pump 471, and the first vacuum pump 471 can be arranged on the mounting shell 13 of the cleaning equipment and located on one side of the dust box 60. The first vacuum pump 471 can specifically include one of a liquid ring type, a rotary vane pump, a dry screw vacuum pump, etc. The first vacuum pump 471 can evacuate the liquid storage chamber 411 to obtain a vacuum in the liquid storage chamber 411, so that the sewage in the water collection tank 43 can be efficiently and timely sucked into the liquid storage chamber 411 for storage.

[0114] Specifically, see Fig.12 and Fig.13 The specific method of connecting the air circuit connecting pipe 472 and the waterproof connecting pipe 423 of the sewage tank 40 in this embodiment may include: a connecting nozzle 131 adapted to the air circuit connecting pipe 472 is provided at a position of the installation shell 13 close to the box body 41, one end of the connecting nozzle 131 is connected to the air circuit connecting pipe 472, and the other end is connected to the waterproof connecting pipe 423, and a sealing ring 132 is provided at the connecting gap between the connecting nozzle 131 and the port of the waterproof connecting pipe 423 and the waterproof connecting pipe 423 to improve the air tightness when the connecting nozzle 131 and the waterproof connecting pipe 423 are connected.

[0115] The third embodiment of the utility model also provides a cleaning device, which includes a body 10, a cleaning mechanism 20 and a sewage collection mechanism provided by the second embodiment. The body 10 is provided with a storage chamber 11, and the cleaning mechanism 20 includes a cleaning member 21 and a wiper 22. The cleaning member 21 and the wiper 22 are both installed in the storage chamber 11, and the wiper 22 abuts against the cleaning member 21, and the wiper 22 scrapes off the sewage on the cleaning member 21. The cleaning member 21 includes a roller 212. During the process of the roller 212 rotating to clean the ground, the sewage generated will be scraped off by the wiper 22, and then the cleaning box of the cleaning device sprays clean water or cleaning liquid onto the roller 212, thereby enhancing the cleaning effect of the roller 212 on the surface to be cleaned.

[0116] The sewage tank 40 of the sewage collection mechanism is arranged in the body 10 and is located on one side of the cleaning member 21. Specifically, a spring buckle 48 is arranged on the top of the sewage tank 40, and the sewage tank 40 is detachably buckled in the body 10 through the spring buckle 48. The water collection tank 43 of the sewage tank 40 is used to collect the sewage scraped from the cleaning member 21 by the wiper 22. During this process, the negative pressure pumping device 47 of the sewage collection mechanism will pump negative pressure to the liquid storage chamber 411 in the box body 41 of the sewage tank 40, so that the sewage in the water collection tank 43 can be sucked into the liquid storage chamber 411 in time for storage, and avoid spilling of sewage.

[0117] When the wiper blade 22 on the existing cleaning equipment scrapes the sewage on the cleaning member 21 and discharges the sewage into the sewage tank 40, the garbage on the cleaning member 21 will also be discharged into the sewage tank 40 along with the sewage from the drain port 223 on the wiper blade 22. The garbage may block the sewage inlet of the sewage tank 40, thereby reducing the sewage collection efficiency of the sewage tank 40, and even causing the sewage to overflow from the sewage tank 40 and cause secondary pollution to the surface to be cleaned.

[0118] See also Figures 14 to 22 In view of the above problems, the wiper 22 provided in the fourth embodiment of the utility model includes a plate body 221, and the plate body 221 has a first side surface 2211 and a second side surface 2212 arranged opposite to each other. The plate body 221 is provided with a wiper portion 222, a drain port 223 and a filter structure 224. The wiper portion 222 is convexly arranged on the first side surface 2211 and is located at the side edge of the drain port 223. The drain port 223 is arranged through the thickness direction of the plate body 221 to at least guide the sewage on the first side surface 2211 to the second side surface 2212. The filter structure 224 is covered and arranged in the drain port 223, so as to filter and intercept the garbage in the sewage in the process of the sewage being guided from the first side surface 2211 to the second side surface 2212 by the drain port 223, so as to prevent the garbage from entering the sewage tank 40 with the sewage. Therefore, the sewage tank 40 does not need to be provided with a filter structure 224 to filter the garbage, and the sewage tank 40 can also realize efficient collection of sewage.

[0119] It can be seen that, since the filter structure 224 is disposed in the drainage port 223 of the wiper plate 22 provided in this embodiment, the garbage can be filtered by the filter structure 224 during the process of the drainage port 223 of the wiper plate 22 directing the sewage from the first side 2211 of the plate body 221 to the second side 2212. The garbage filtered by the filter structure 224 will not enter the sewage tank 40, so as to improve the sewage collection efficiency of the sewage tank 40 and prevent the sewage from flowing to the ground due to the blockage of the sewage tank 40 and causing secondary pollution.

[0120] The garbage filtered out by the filter structure 224 is either retained in the space between the wiper part 222 and the filter structure 224 or falls directly to the ground. When the garbage falls to the ground from the wiper 22, it can be cleaned again by the middle sweeping assembly 70 of the cleaning device and collected into the dust box 60. Because most of the garbage has been cleaned and collected by the side brush assembly 50, the middle sweeping assembly 70, etc. before the cleaning member 21 cleans the surface to be cleaned, the garbage on the cleaning member 21 is generally not too much and the volume is also small. Therefore, the garbage scraped off the cleaning member 21 by the wiper 222 can be temporarily retained in the space between the wiper 222 and the filter structure 224. After a certain amount of garbage is stored, the wiper 22 can be taken out and the garbage can be washed out. In this embodiment, when the cleaning member 21 includes a roller 212, the roller 212 can also be driven to reverse to bring out the garbage. After the garbage brought out by the roller 212 reverses and falls to the ground, it can be swept into the dust box 60 again by the middle sweeping assembly 70.

[0121] The filter structure 224 in this embodiment may specifically include a filter net disposed in the drain outlet 223. In this case, the drain outlet 223 may be provided with one or more filters, so that the filter net is covered in the drain outlet 223 to filter the garbage. Figures 16 to 18 As shown, the filter structure 224 in this embodiment may also include a plurality of micro-filter holes 2241 of smaller size, and the plurality of filter holes 2241 may be distributed and arranged on the plate body 221 and penetrate the plate body 221. At this time, the filter holes 2241 not only play the filtering function of filtering garbage, but also serve as the drain port 223 to guide the sewage from the first side 2211 to the second side 2212. That is, in this embodiment, the filter holes 2241 and the drain port 223 are integrally formed and arranged. Compared with the structure in which a plurality of filter nets are arranged in the drain port 223 for filtering garbage, the filter structure 224 is directly arranged as a plurality of micro-filter holes 2241, so that the plate body 221 is more convenient to process. When the filter structure 224 includes a filter net, it is necessary to firstly process the drain port 223 on the plate body 221, and then install the filter net in the drain port 223. In this regard, the assembly of the filter net is relatively cumbersome and complicated, and defective products are easily discharged. In this regard, this embodiment directly processes a plurality of micro filter holes 2241 on the plate body 221, thereby guiding sewage from the first side 2211 to the second side 2212 through the filter holes 2241, while filtering out garbage, thereby simplifying the processing steps of the plate body 221 and improving the processing efficiency and good product outflow rate of the plate body 221.

[0122] Since the length of the plate body 221 is generally along the length direction of the cleaning member 21 (i.e. the roller 212) (i.e. Fig.14In order to improve the filtering efficiency of the sewage scraped by the wiper 222, the plurality of filtering holes 2241 of the filtering structure 224 are arranged in at least one row along the length direction of the plate body 221. For example, they are arranged in one row, two rows, three rows, four rows, etc. along the length direction of the plate body 221, so that the sewage can be filtered through the plurality of filtering holes 2241 in at least one row at the same time, thereby improving the filtering efficiency of the sewage.

[0123] The filter hole 2241 in this embodiment includes at least one of a circular hole, a square hole, and a diamond hole. In this regard, the structure of the filter hole 2241 can be determined according to actual processing requirements or existing processing facilities, and this embodiment does not make a sole limitation here.

[0124] The maximum width of the filter hole 2241 in this embodiment is not less than 1 mm and not more than 2 mm. That is, the maximum width of the filter hole 224154 may include one of 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2 mm, etc. The filter hole 2241 in this embodiment has the above-mentioned size range, which can not only filter the solid waste in the sewage, but also ensure that the sewage can be diverted from the first side 2211 of the plate body 221 to the second side 2212, and then flow into the sewage tank 40 from the second side 2212. The filter hole 2241 in this embodiment is preferably a circular hole, which is easy to process. When the filter hole 2241 includes a circular hole, the maximum width is the diameter of the filter hole 2241, that is, the diameter of the circular hole is not less than 1 mm and not more than 2 mm.

[0125] The minimum spacing between two adjacent filter holes 2241 is not less than 1mm, and the maximum spacing between two adjacent filter holes 2241 is not greater than 2mm. That is to say, the spacing between two adjacent filter holes 2241 is between 1mm and 2mm, and the spacing between two adjacent filter holes 2241 may specifically include one of 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, etc. If the spacing between two adjacent filter holes 2241 is too small (such as less than 1mm), the structural strength of the wiper 222 will be reduced, and it will be unfavorable for the sewage to be diverted to the second side 2212. If the spacing is too large, the filtration effect on garbage is poor, and smaller garbage cannot be intercepted and filtered. Therefore, in this embodiment, the spacing between two adjacent filter holes 2241 is set within the above range, which can not only ensure the structural strength of the wiper 22 and the smooth diversion of sewage, but also improve the filtration efficiency of the filter structure 224 on garbage.

[0126] In this embodiment, the bottom surface of the drain port 223 can be tilted downward toward the direction close to the outer edge of the plate body 221, so that when the sewage filtered by the filter structure 224 is directed to the second side surface 2212 by the drain port 223, the sewage can flow directly into the sewage tank 40 along the bottom surface of the drain port 223 toward the outer edge of the plate body 221. At the same time, in this embodiment, the axis of the filter hole 2241 can be tilted toward the direction close to the outer edge of the plate body 221, so that when the sewage filtered by the filter structure 224 is directed to the second side surface 2212 by the drain port 223, the sewage can gather toward the direction of the outer edge of the plate body 221 and flow directly into the sewage tank 40.

[0127] See also Fig.16 and Fig.18 In this embodiment, a drainage groove 213 is provided on the plate body 221. The drainage groove 213 is provided on the second side surface 2212 and is located on one side of the filter hole 2241. A water outlet 214 is provided on the side wall of the drainage groove 213 away from the filter hole 2241. The drainage groove 213 is used to guide the sewage flowing out of the filter hole 2241 to the water outlet 214, so as to discharge the sewage into the sewage tank 40 through the water outlet 214. Fig. 20 As shown, the axis of the filter hole 2241 is inclined toward the water outlet 214 so that the sewage guided to the second side 2212 by the filter hole 2241 can flow and gather toward the water outlet 214, thereby facilitating efficient discharge of the sewage.

[0128] The water outlet 214 in this embodiment can be set in the middle area of ​​the plate body 221. However, in some embodiments of the utility model, since the wiper 22 needs to extend out of the body 10 with the cleaning member 21 to clean the blind area (such as the blind area between the body 10 and the wall, obstacles, etc.), in order to ensure that the sewage can still be discharged into the sump 43 of the sewage tank 40 after the wiper 22 extends out of the body 10 with the cleaning member 21. The side of the plate body 221 that can extend out of the body 10 is the extension side, and in this embodiment, the water outlet 214 can be set on the side of the plate body 221 away from the extension side. Specifically, the distance from the water outlet 214 to one end of the plate body 221 along the first direction can be made smaller than the distance from the water outlet 214 to the other end of the plate body 221 along the first direction. Thus, even if the end of the plate body 221 along the first direction farther from the water outlet 214 extends out of the main body 10, it can be ensured that the water outlet 214 can correspond to the water collection tank 43, thereby discharging sewage into the water collection tank 43.

[0129] like Fig.18As shown, the bottom of the drainage trough 213 is provided with a diversion slope 2131, which is located between the filter hole 2241 and the water outlet 214 to divert the water flowing out of the filter hole 2241 to the water outlet 214, so as to prevent the sewage from gathering at places other than the water outlet 214 on the second side 2212, and to discharge the sewage into the sewage tank 40 through the water outlet 214 in a timely manner. Specifically, the bottom of the drainage trough 213 is a V-shaped structure, the water outlet 214 is located at the bottom of the V-shaped structure, and the side walls of the V-shaped structure located on the opposite sides of the water outlet 214 form the diversion slope 2131, so that after the sewage is diverted to the second side 2212 by the filter hole 2241, the sewage can quickly flow into the water outlet 214 at the bottom of the V-shaped structure along the diversion slope 2131, so as to be discharged in time through the water outlet 214.

[0130] like Fig. 20 As shown, the second side surface 2212 of this embodiment includes a convex curved surface 2121, which is located on the side of the drainage groove 213 away from the water outlet 214, and the filter hole 2241 is set on the convex curved surface 2121 and penetrates from the convex curved surface 2121 to the first side surface 2211. Since the port of the filter hole 2241 located on the second side surface 2212 is located on the convex curved surface 2121, when the sewage enters the second side surface 2212, it will flow into the water outlet 214 along the convex curved surface 2121 or along the guide slope 2131 under the action of gravity, so that the sewage is gathered at the water outlet 214 and the discharge efficiency of the sewage at the water outlet 214 is improved. Of course, the plate body 221 in this embodiment can be an arc-shaped plate body structure adapted to the outer side of the drum 212, so that the scraper 222 of the first side surface 2211 of the plate body 221 can more reliably abut against the drum 212 to scrape the sewage efficiently.

[0131] The wiper portion 222 in this embodiment includes a first side wall 2221, and the first side wall 2221 is located on a side of the wiper portion 222 close to the filter structure 224. The first side wall 2221 is a V-shaped side wall structure, which is convenient for the collection of sewage, and then the collected sewage is guided to the second side 2212 through the filter structure 224. Secondly, the arrangement line formed by the arrangement of at least one row of filter holes 2241 in this embodiment is a V-shaped arrangement line, and the bottom end of the V-shaped arrangement line is arranged opposite to the water outlet 214, thereby, the sewage guided to the second side 2212 can be better gathered in the direction of the water outlet 214, thereby improving the discharge efficiency of the water outlet 214 for sewage.

[0132] The fifth embodiment of the utility model further provides a cleaning device, which includes a body 10 and a cleaning mechanism 20, and the body 10 is provided with a storage chamber 11. The cleaning mechanism 20 includes a cleaning member 21 and a wiper 22 provided in the fourth embodiment of the utility model, and the cleaning member 21 and the wiper 22 are both installed in the storage chamber 11, and the wiper 22 abuts against the cleaning member 21, so that during the rotation of the cleaning member 21, the sewage on the cleaning member 21 is scraped into the sewage tank 40.

[0133] See also Figure 21 to Figure 22 In this embodiment, the cleaning mechanism 20 further includes a connecting bracket 23 and an elastic connecting component 24. The connecting bracket 23 is installed in the storage chamber 11, and the wiper 22 and the cleaning member 21 are both installed on the connecting bracket 23. The elastic connecting component 24 is connected between the connecting bracket 23 and the wiper 22, and the elastic connecting component 24 is used to apply an abutting force to the wiper 22 toward the cleaning member 21, so that when the cleaning member 21 is worn due to long-term work and the size is reduced, the wiper 22 can still be firmly and reliably abutted with the cleaning member 21 under the action of the abutting force applied by the elastic connecting component 24, so as to scrape the sewage on the cleaning member 21 and introduce it into the sewage tank 40. The elastic connection component 24 in this embodiment may specifically include a torsion spring 241 and a rotating shaft 242. The wiper blade 22 is rotatably connected to the connecting bracket 23 via the rotating shaft 242. The torsion spring 241 is sleeved on the rotating shaft 242 and abuts between the wiper blade 22 and the connecting bracket 23, so that the wiper blade 22 is always pressed against the cleaning member 21 (such as the roller 212) through the torsion spring 241.

[0134] The storage chamber 11 of the body 10 is provided with an opening 12 on at least one side along the first direction. The connection bracket 23 in this embodiment may include a first bracket 231 and a second bracket 232. The first bracket 231 may be installed in the storage chamber 11 through the installation bracket. The second bracket 232 is detachably connected to the first bracket 231 and may be moved relative to the first bracket 231 along the first direction to be taken out from the opening 12. One end of the cleaning member 21 along the first direction is connected to the first bracket 231 and is located on the side of the second bracket 232 away from the first bracket 231. The wiper 22 is installed on the second bracket 232. Since the wiper 22 and the second bracket 232 installed near the cleaning member 21 are prone to dirt and grime, the second bracket 232 and the wiper 22 need to be removed for cleaning. The cleaning member 21 includes a driving component 211 and a roller 212. One end of the roller 212 along the first direction is connected to the first bracket 231 through the driving component 211 and is located on the side of the second bracket 232 away from the first bracket 231. The other end of the roller 212 along the first direction is detachably connected to the second bracket 232 through the first locking component 26. The first locking component 26 has a locking position for locking with the second bracket 232 under the action of external force and an unlocking position for separating from the second bracket 232. When the second bracket 232 needs to be removed, the first locking component 26 can be unlocked first to separate the second bracket 232 and the cleaning component 21.

[0135] Specifically, the roller 212 is detachably mounted on the driving component 211 and can rotate around its own axis under the drive of the driving component 211. The wiper 22 is mounted on the second bracket 232 and abuts against the outer peripheral surface of the roller 212. In this embodiment, when the second bracket 232 is taken out, the wiper 22 can be taken out, so that the garbage gathered on the first side 2211 of the wiper 22 can be cleaned while the taken out second bracket 232 is cleaned. In addition to the wiper 22 being taken out to clean the filtered garbage, in this embodiment, when the cleaning member 21 includes the roller 212, if the roller 212 rotates counterclockwise under the drive of the driving component 211 when performing the cleaning work, the driving component 211 can be used to drive the roller 212 to rotate clockwise, so that during the clockwise rotation of the roller 212, the garbage gathered on the first side 2211 of the wiper 22 is carried to the ground by the roller 212, and the garbage falling on the ground can be swept into the dust box 60 again by the middle sweeping assembly 70 of the cleaning device.

[0136] like Fig.21As shown, the driving component 211 in this embodiment may include a mounting seat 111, a driving motor 112, a bearing 113 and a connector 114. The mounting seat 111 is fixedly connected to one end of the first bracket 231 away from the first locking member 26 of the cleaning member 21, the driving motor 112 is connected to the mounting seat 111, the connector 114 is connected to the rotating shaft 242 of the driving motor 112, and the bearing 113 is sleeved on the mounting seat 111 and located on the side of the driving motor 112 away from the connector 114 along the first direction. A connecting structure (such as a groove and / or a protrusion, etc.) adapted to the connector 114 is provided in the drum 212, and the drum 212 is movably sleeved on the driving component 211 (at this time, the bearing 113, the driving motor 112 and the connector 114 are all located in the drum 212), and the driving motor 112 rotates to drive the drum 212 to rotate around its own axis through the connector 114, and the drum 212 achieves efficient cleaning of the surface to be cleaned during the rotation process.

[0137] In this embodiment, a sliding space 311 is provided on the first bracket 231, and the second bracket 232 can be slidably connected to the sliding space 311 through a sliding connection component 25. The second bracket 232 has a first sliding position connected to the sliding space 311 through the sliding connection component 25 under the action of an external force, and a second sliding position separated from the first bracket 231.

[0138] It can be seen that in this embodiment, the second bracket 232 can be slidably installed in the sliding space 311 of the first bracket 231 through the sliding connection assembly 25. When the second bracket 232 needs to be taken out to clean and maintain the second bracket 232 and the wiper 22 thereon, the second bracket 232 is pulled relative to the first bracket 231 to slide out from the opening 12 of the body 10 along the first direction. When the second bracket 232 and the wiper 22 connected thereto need to be installed back into the sliding space 311, the second bracket 232 is pushed to move into the sliding space 311 along the first direction and connected to the first sliding position in the sliding space 311 through the sliding connection assembly 25. In this embodiment, the second bracket 232 is slidably connected to the sliding space 311 through the sliding connection assembly 25, which improves the convenience of extracting and installing the second bracket 232 and the wiper 22 connected thereto.

[0139] like Fig. 22 As shown, the sliding connection assembly 25 includes a slide groove 251 and a sliding boss 252. The slide groove 251 is arranged in the sliding space 311 along the second direction (the second direction is Fig. 22The sliding boss 252 is arranged on one side of the second bracket 232 close to the first bracket 231 and is arranged one-to-one with the slide groove 251. Therefore, when the second bracket 232 is installed in the sliding space 311, the sliding boss 252 can be slidably inserted into the slide groove 251 in the sliding space 311. When the second bracket 232 needs to be extracted, the second bracket 232 is pulled along the first direction until the sliding boss 252 is separated from the slide groove 251. Of course, the slide groove 251 in this embodiment can also be arranged on one side of the second bracket 232 close to the first bracket 231, and the sliding boss 252 is arranged in the sliding space 311, or the sliding boss 252 and the slide groove 251 can be arranged on both the second bracket 232 and the first bracket 231 at the same time, so as to stably slide and connect the second bracket 232 in the second sliding space 311.

[0140] In order to further improve the stability of the second bracket 232 relative to the first bracket 231 when the second bracket 232 is connected to the sliding space 311, and prevent the second bracket 232 from being separated from the first bracket 231 by external force. In this regard, the second bracket 232 can be detachably connected to the first bracket 231 by a second locking member 27 disposed on the second bracket 232. The second locking member 27 is specifically disposed at one end of the second bracket 232 close to the opening 12. The first bracket 231 is provided with a buckling groove 312. The second locking member 27 has a locking position where it is buckled with the buckling groove 312 under the action of external force and an unlocking position where it is separated from the buckling groove 312. Therefore, when the second bracket 232 is connected to the sliding space 311, the second bracket 232 can be locked in the sliding space 311 of the first bracket 231 by the second locking member 27, so as to prevent the second bracket 232 from sliding off the first bracket 231.

[0141] It can be seen that the second locking member 27 provided on the second bracket 232 of this embodiment can stably and reliably lock the second bracket 232 in the sliding space 311, so as to ensure that the second bracket 232 will not fall off the body 10 when the cleaning device is working normally, and improve the stability and firmness of the connection between the second bracket 232 and the first bracket 231. When it is necessary to remove the second bracket 232, the second locking member 27 can be unlocked to separate the second bracket 232 from the first bracket 231, so that the second bracket 232 can be extracted from the sliding space 311 along the first direction from the opening 12. Without turning over the body 10, the second bracket 232 and the wiper 22 thereon can be conveniently and quickly extracted from the side.

[0142] Secondly, since the second locking member 27 is located at one end of the second bracket 232 close to the opening 12 of the body 10, it is convenient for the operator to unlock the first locking member 26 and conveniently unlock the second locking member 27 to the unlocking position separated from the buckling groove 312. In addition, since the second bracket 232 can slide relative to the first bracket 231 in the sliding space 311 along the first direction, after the second locking member 27 is unlocked, the second bracket 232 located in the sliding space 311 can be extracted from the opening 12, which improves the convenience of removing and installing the second bracket 232.

[0143] The sixth embodiment of the present utility model further provides a base station, which includes a cleaning device. For the specific structure of the cleaning device, please refer to the contents provided in the third and fifth embodiments of the present utility model, which will not be described in detail in this embodiment.

[0144] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0145] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0146] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A sewage tank, characterized in that: include: A box body (41), wherein a liquid storage cavity (411) is arranged inside the box body (41), and a suction channel assembly (42) communicating with the liquid storage cavity (411) is arranged on the top of the box body (41); A water collecting tank (43), wherein the water collecting tank (43) is arranged outside the box body (41), and the water collecting tank (43) is communicated with the liquid storage chamber (411).

2. The sewage tank according to claim 1, characterized in that: The liquid storage chamber (411) comprises a top surface (4111), a connecting channel (44) is provided between the water collecting tank (43) and the liquid storage chamber (411), and a port through which the connecting channel (44) communicates with the water collecting tank (43) is at a predetermined distance from the top surface (4111).

3. The sewage tank according to claim 2, characterized in that: The suction channel assembly (42) comprises: A suction hole (421), the suction hole (421) being arranged through the box body (41); A waterproof connecting pipe (423), the waterproof connecting pipe (423) being in communication with the suction hole (421), the waterproof connecting pipe (423) being used to prevent the liquid in the liquid storage chamber (411) from flowing out along the suction hole (421).

4. The sewage tank according to claim 3, characterized in that: The waterproof connecting pipe (423) comprises: A connecting piece (4231), the connecting piece (4231) is plugged into the suction hole (421), a vent hole (2313) is provided through the connecting piece (4231), and the vent hole (2313) connects the liquid storage cavity (411) with the outside of the box body (41); A buckle cover portion (4232), the buckle cover portion (4232) is connected to the connecting piece (4231) and is located in the liquid storage chamber (411), a first waterproof groove (2321) is provided on one side of the buckle cover portion (4232) close to the top surface (4111), the vent hole (2313) is connected to the first waterproof groove (2321), and a notch of the first waterproof groove (2321) is abutted against the top surface (4111) and has a predetermined gap between the first waterproof groove (2321) and the top surface (4111).

5. The sewage tank according to claim 4, characterized in that: The connecting piece (4231) comprises: A connecting section (2311), the connecting section (2311) is inserted into the suction hole (421) and connected to the buckle cover portion (4232); The mounting section (2312) is connected to an end of the connecting section (2311) away from the buckle cover portion (4232) and is located outside the box body (41); the vent hole (2313) is arranged through the connecting section (2311) and the mounting section (2312).

6. The sewage tank according to claim 2, characterized in that: The water collecting trough (43) is located at the bottom of the box body (41), and the water collecting trough (43) includes a first trough wall (431) close to the liquid storage chamber (411). The connecting channel (44) includes: A flow guide hole (441), wherein the flow guide hole (441) is provided through the first groove wall (431) to connect the water collecting groove (43) with the liquid storage chamber (411).

7. The sewage tank according to claim 6, characterized in that: The axis of the guide hole (441) is inclined in a direction close to the top surface (4111).

8. A sewage collection mechanism, characterized in that: include: The sewage tank (40) according to any one of claims 1 to 7; A negative pressure extraction device (47), the negative pressure extraction device (47) being in communication with the suction channel assembly (42) of the sewage tank (40), the negative pressure extraction device (47) being used to extract negative pressure from the liquid storage chamber (411) so that the air pressure of the liquid storage chamber (411) is lower than the air pressure of the water collection tank (43).

9. The sewage collection mechanism according to claim 8, characterized in that: The negative pressure extraction device (47) comprises: An air extraction member, wherein the air extraction member comprises an air extraction port; An air circuit connecting pipe (472), wherein the air circuit connecting pipe (472) is connected between the air suction port and the suction channel assembly (42).

10. A cleaning device, characterized in that: include: A body (10), wherein the body (10) is provided with a storage cavity (11); A cleaning mechanism (20), the cleaning mechanism (20) comprising a cleaning member (21) and a wiper (22), the cleaning member (21) and the wiper (22) both being installed in the storage chamber (11), and the wiper (22) being in abutment with the cleaning member (21); The sewage collection mechanism according to any one of claims 8 to 9, wherein the sewage tank (40) of the sewage collection mechanism is arranged in the body (10) and is located on one side of the cleaning member (21), and the sump (43) of the sewage tank (40) is used to collect sewage scraped from the cleaning member (21) by the wiper (22).

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