Cleaning apparatus and cleaning system

Abstract

A cleaning apparatus and a cleaning system. The cleaning apparatus (100) comprises: a sewage tank (140), the sewage tank (140) being provided with a sewage discharge port (143); and a sewage discharge pipeline (150), the sewage discharge pipeline (150) being in communication with the sewage discharge port (143), wherein the height of at least one part of the sewage discharge pipeline (150) is higher than the height of the highest water level line of the sewage tank (140).

Description

Cleaning equipment and cleaning systems

[0001] Cross-reference to related applications

[0002] This disclosure is based on and claims the priority of Chinese patent application with application number 202311021849.2 and application date August 11, 2023. The entire content of the Chinese patent application is hereby incorporated into this disclosure by reference. Technical Field

[0003] The present disclosure relates to the field of cleaning technology, and in particular to a cleaning device and a cleaning system. Background Art

[0004] With the continuous advancement of technology, cleaning equipment such as floor scrubbers and sweeping and mopping machines have become widely adopted by households. Floor scrubbers are more time-saving and labor-saving than traditional manual cleaning. Floor scrubbers typically consist of a main unit and a cleaning base. The main unit is typically equipped with a sewage tank, a fresh water tank, and a main blower for suction. The cleaning base includes a cleaning roller for mopping. Cleaning fluid, such as water, from the fresh water tank is sprayed onto the cleaning roller through a built-in water pipe. The cleaning roller rotates at high speed to mop the floor. The blower then generates suction, recovering the wastewater back into the sewage tank.

[0005] Summary of the Invention

[0006] The purpose of this disclosure is to provide a cleaning device and a cleaning system that can solve the technical problem of sewage leakage in the sewage discharge system of the cleaning device when disconnected from the maintenance station in the related art. The specific solution is as follows:

[0007] According to some embodiments of the present disclosure, on the one hand, the present disclosure provides a cleaning device, comprising: a sewage tank, the sewage tank being provided with a sewage outlet; a sewage outlet pipeline, the sewage outlet pipeline being connected to the sewage outlet; wherein the sewage outlet pipeline has at least one point of height higher than the highest water level of the sewage tank. According to some embodiments of the present disclosure, on the one hand, the present disclosure provides a cleaning device, comprising: a sewage tank, the sewage tank being provided with a sewage outlet; a first sewage outlet pipeline, the first sewage outlet pipeline being connected to the sewage outlet; a second sewage outlet pipeline, the second sewage outlet pipeline being connected to the first sewage outlet; wherein the second sewage outlet pipeline has at least one point of height higher than the highest water level of the sewage tank, and the outlet of the second sewage outlet is located lower than the sewage outlet.

[0008] According to some embodiments of the present disclosure, on the other hand, the present disclosure provides a cleaning device, including: a sewage tank, which is provided with a sewage outlet; a sewage pipe, which is connected to the sewage outlet; a pressure stop valve, which is arranged at one end of the sewage outlet near the sewage pipe, and the pressure stop valve has a preset distance from the sewage outlet, so that an external sewage pipe is connected to the sewage pipe after passing through the pressure stop valve at the preset distance.

[0009] According to some embodiments of the present disclosure, in another aspect, the present disclosure provides a cleaning system, comprising: a cleaning device as described in any one of the above technical solutions; and a maintenance station that provides maintenance functions for the cleaning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort. In the drawings:

[0011] FIG1 shows a schematic structural diagram of a cleaning device according to some embodiments of the present disclosure.

[0012] FIG2 shows a schematic structural diagram of a maintenance station provided according to some embodiments of the present disclosure.

[0013] FIG3 shows a schematic diagram of a cleaning device and a maintenance station combined according to some embodiments of the present disclosure.

[0014] FIG4 shows a schematic diagram of the installation structure of a sewage tank and a sewage pipe according to some embodiments of the present disclosure.

[0015] FIG5 shows a schematic diagram of a pressure-stop valve according to some embodiments of the present disclosure.

[0016] FIG6 is a schematic diagram showing an open state of a pressure-stop valve according to some embodiments of the present disclosure.

[0017] FIG7 shows a schematic diagram of a limiting portion provided according to some embodiments of the present disclosure.

[0018] FIG8 shows a schematic diagram of a limiting portion provided according to other embodiments of the present disclosure.

[0019] FIG9 shows a schematic diagram of a clean water tank according to some embodiments of the present disclosure.

[0020] FIG10 shows a schematic diagram of a first float and a second float provided according to some embodiments of the present disclosure.

[0021] FIG11 shows a schematic diagram of a reversing valve according to some embodiments of the present disclosure.

[0022] FIG12 shows a schematic diagram of a reversing valve according to other embodiments of the present disclosure.

[0023] Reference numerals: 100: cleaning device; 110: driving wheel; 120: cleaning module; 121: roller brush; 130: clean water tank; 132: first float; 133: second float; 134: flow guide pipe; 135: first water injection pipeline; 1351: one-way valve; 140: sewage tank; 141: sewage extraction pipeline; 142: sewage extraction fan; 143: sewage outlet; 150: sewage extraction pipeline; 151: first sewage extraction pipeline; 152: second sewage extraction pipeline; 1521: first bending structure; 1522: first pipeline; 1523: second pipeline; 1524: third pipeline; 160: power supply; 170: missing corner space; 1 80: Pressure-stop valve; 181: First fixing portion; 182: Second fixing portion; 183: Pressure-stop portion; 1831: First pressure plate; 1832: Second pressure plate; 190: Limiting portion; 191: Limiting tube; 192: Fixing portion; 10: Reversing valve; 11: First connecting hole; 12: Second connecting hole; 13: Third connecting hole; 14: Clean water chamber; 104: Counterbore; 15: Trigger mechanism; 105: Spring; 106: Linking rod; 1061: Trigger point; 1062: Gasket; 107: Sealing portion. 200: Maintenance station; 210: Sewage exhaust fan; 220: External sewage pipe; 221: Sealing ring; 230: Second water inlet pipe. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of the present disclosure more clear, the present disclosure will be further described in detail below with reference to the accompanying drawings. It is apparent that the embodiments described are only a portion of the embodiments of the present disclosure, rather than all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present disclosure without creative effort are intended to fall within the scope of protection of the present disclosure.

[0025] The terms used in the embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the present disclosure. The singular forms "a," "an," "the," and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include plural forms, and unless the context clearly indicates otherwise, "a plurality" generally includes at least two.

[0026] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0027] It should be understood that although the terms first, second, third, etc. may be used to describe certain structures or components in the embodiments of the present disclosure, these certain structures or components should not be limited to these terms. These terms are only used to distinguish between structures or components of the same type. For example, without departing from the scope of the embodiments of the present disclosure, a first component may also be referred to as a second component, and similarly, a second component may also be referred to as a first component.

[0028] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0029] It should also be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or device. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the product or device comprising the element.

[0030] In the related art, in order to prevent sewage leakage, a sealing valve is provided on the sewage pipe connected to the sewage tank. When discharging sewage, the sealing valve is opened to discharge sewage. However, when the sewage pipe is disconnected from the maintenance station, some sewage will still leak.

[0031] The present disclosure provides a cleaning device and a cleaning system. The cleaning device 100 includes: a sewage tank 140, wherein the sewage tank 140 is provided with a sewage outlet 141; and a sewage outlet pipe 150, wherein the sewage outlet pipe 150 is connected to the sewage outlet; wherein the sewage outlet pipe 150 has at least one portion thereof located at a height higher than the highest water level of the sewage tank 140. The cleaning device 100 provided by the present disclosure is redesigned so that the sewage outlet pipe 150 has at least one portion thereof located at a height higher than the highest water level of the sewage tank 140. The cleaning device 100 provided by the present disclosure can omit a sealing valve in the sewage outlet pipe 150, and the sewage in the sewage tank 140 will not flow out along the sewage outlet pipe 150. Furthermore, the cleaning device 100 provided by the present disclosure will not leak sewage when leaving the maintenance station.

[0032] Optional embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0033] Figure 1 shows a schematic diagram of a cleaning device according to some embodiments of the present disclosure. As shown in Figure 1, a cleaning device 100, such as a floor scrubber, may include a drive wheel 110, which enables the cleaning device 100 to move on a supporting surface, such as the ground.

[0034] The cleaning device 100 may further include a cleaning module 120. The cleaning module 120 is configured to clean at least a portion of a support surface, such as the ground, while the cleaning device 100 is moving over the support surface. In some embodiments, the cleaning module 120 is disposed between the two drive wheels 110. The cleaning module 120 may include a frame and a roller brush 121 disposed within the frame. The roller brush 121 may have a plurality of scraping strips disposed on its outer circumference.

[0035] The cleaning device 100 may further include a clean water tank 130 , which is used to store cleaning liquid and provide cleaning liquid to the roller brush 121 . The clean water tank 130 is connected to the roller brush 121 via a water distribution pipeline.

[0036] The cleaning device 100 may also include a sewage tank 140. Sewage from the surface of the roller brush 121 and the ground is drawn into the sewage tank 140 via a sewage extraction pipe 141 and a sewage extraction fan 142. The sewage in the sewage tank 140 is discharged through a sewage discharge pipe 150. The sewage tank 140 is connected to the roller brush 121. During use, the sewage on the roller brush 121 is drawn into the sewage tank 140 via the sewage extraction fan 142.

[0037] In some embodiments, the cleaning device 100 may further include a sewage extraction fan 142 and a power supply 160, which are arranged side by side during use. For example, in conventional floor scrubbers, the sewage extraction fan 142 and power supply 160 are arranged one above the other, extending the machine longitudinally. However, the cleaning device 100 of the present disclosure, arranged side by side, shortens the machine, lowers the center of gravity, and improves the user's grip and handling experience.

[0038] FIG2 is a schematic diagram of the structure of a maintenance station provided according to some embodiments of the present disclosure. FIG3 is a schematic diagram of the combined state of a cleaning device and a maintenance station provided according to some embodiments of the present disclosure. As shown in FIG2 and FIG3 , the cleaning system may include a cleaning device 100 and a maintenance station 200. The maintenance station 200 may include: a sewage blower 210 and an external sewage pipe 220. The external sewage pipe 220 is connected to the sewage pipeline 150. The sewage blower 210 extracts the sewage in the sewage tank 140 through the external sewage pipe 220.

[0039] Figure 4 shows a schematic diagram of the installation structure of a sewage tank and a sewage pipe provided according to some embodiments of the present disclosure. As shown in Figure 4, according to a specific embodiment of the present disclosure, on the one hand, the present disclosure provides a cleaning device 100, which may include: a sewage tank 140, wherein the sewage tank 140 is provided with a sewage outlet 143; a sewage pipe 150, wherein the sewage pipe 150 is connected to the sewage outlet 143; wherein the sewage pipe 150 has at least one point higher than the height of the highest water level of the sewage tank 140. In a specific embodiment, the sewage pipe 150 includes: a first sewage pipe 151, wherein the first sewage pipe 151 is connected to the sewage outlet 143; and a second sewage pipe 152, wherein the second sewage pipe 152 is connected to the first sewage pipe 151; and the discharge port of the second sewage pipe 152 is located lower than the sewage outlet 143. The cleaning device 100 provided in the present disclosure has a redesigned second sewage pipe 152, and at least one part of the second sewage pipe 152 is located at a height higher than the highest water level line of the sewage tank 140. The cleaning device 100 disclosed in the present disclosure can omit the sealing valve at the discharge port of the sewage pipe 150, and the sewage in the sewage tank 140 will not flow out along the sewage pipe 150. In addition, the cleaning device 100 disclosed in the present disclosure will not leak sewage when leaving the maintenance station 200. In some embodiments, the sewage of the cleaning device 100 disclosed in the present disclosure is stored in the sewage tank 140, the first sewage pipe 151 is connected to the sewage outlet 143, and the second sewage pipe 152 is connected to the first sewage pipe 151. It should be noted that when the cleaning device 100 is not in operation, the sewage in the sewage tank 140 will flow into a portion of the first sewage discharge line 151. Since the second sewage discharge line 152 has a portion that is higher than the highest water level of the sewage tank 140, and both the sewage discharge line 150 and the sewage extraction line 141 of the sewage tank 140 are connected to the atmosphere, the sewage in the sewage tank 140 may remain in the first sewage discharge line 151. However, without external force, the sewage in the sewage tank 140 will not flow into the second sewage discharge line 152 on its own. Therefore, the cleaning device 100 of the present disclosure can omit the sealing valve in the second sewage discharge line 152, and the sewage in the sewage tank 140 will not flow out through the sewage discharge line 150. Furthermore, when the cleaning device 100 of the present disclosure leaves the maintenance station 200, sewage leakage will not occur for the same reasons as mentioned above. Specifically, the sewage discharge port is located at the bottom of the sewage tank.

[0040] In some embodiments, the second sewage pipe 152 has an inverted U-shaped structure. In some embodiments, the second sewage pipe 152 may include: a first pipe 1522, a second pipe 1523, and a second pipe 1524 connected end to end; wherein the inlet of the first pipe 1522 is connected to the first sewage pipe 151. In some embodiments, the second pipe 1523 is arranged on the side of the top of the sewage tank 140 away from the sewage outlet 143. The inverted U-shaped structure of the second sewage pipe 152 can ensure that at least one point of the second sewage pipe 152 is higher than the highest water level of the sewage tank 140, while eliminating the multiple bends and right-angle bends of the second sewage pipe 152, reducing obstruction of sewage in the pipe, making sewage discharge smoother, and also reducing the adhesion of solid impurities in the sewage to the pipe wall of the second sewage pipe 152.

[0041] In some embodiments, the first sewage discharge pipe 151 forms a second curved structure, and the sewage outlet 143 is located at the end of the second curved structure. Specifically, the first sewage discharge pipe 151 has a U-shaped structure. In some embodiments, the first sewage discharge pipe 151 may include: a fourth pipe, a fifth pipe, and a sixth pipe connected end to end; wherein the inlet of the fourth pipe is connected to the sewage outlet 143; and the outlet of the sixth pipe is connected to the inlet of the second sewage discharge pipe 152. The U-shaped structure of the first sewage discharge pipe 151 eliminates the multiple bends and right-angle bends of the first sewage discharge pipe 151, reduces obstruction of sewage in the pipe, makes sewage discharge smoother, and also reduces the adhesion of solid impurities in the sewage to the pipe wall of the first sewage discharge pipe 151. It should be noted that the outlet, i.e., the outlet of the sewage discharge pipe 150, is configured to discharge sewage. Sewage flows through the sewage discharge pipe 150 and flows out of the outlet.

[0042] In some embodiments, the second sewage pipe 152 extends along the inner wall of the sewage tank 140. The second sewage pipe 152 is disposed inside the sewage tank 140, which saves external space. Furthermore, the sewage tank 140 and the second sewage pipe 152 can be removed together, making it easier to disassemble and install. If a leak occurs, replacement is more convenient and easier.

[0043] In some embodiments, the second sewage drain pipe 152 extends along the outer wall of the sewage tank 140. The second sewage drain pipe 152 is disposed outside the sewage tank 140 to increase the space inside the sewage tank 140 and the water storage capacity of the sewage tank 140, thereby extending the operating time of the cleaning device 100. The second sewage drain pipe 152 can also be designed to be detachably connected to the sewage tank 140, thereby allowing the sewage tank 140 to be disassembled separately, reducing the replacement of parts and facilitating maintenance.

[0044] In some embodiments, a first bend structure 1521 is formed at one end of the second sewage discharge pipe 152 near the discharge outlet. The first bend structure 1521 is configured to communicate with the external sewage discharge pipe 220. The first bend structure 1521 extends the discharge outlet of the second sewage discharge pipe 152 in a first direction. The first direction is the direction in which the cleaning device 100 faces the maintenance station 200 when the cleaning device 100 is mounted on the maintenance station 200, facilitating docking with the maintenance station 200.

[0045] Fig. 1 shows a schematic diagram of a missing corner space 170 provided according to some embodiments of the present disclosure. As shown in Fig. 1 , in some embodiments, for example, the cleaning device 100 is a floor scrubber, and the floor scrubber includes a floor scrubber body and a base.

[0046] The base is used to fix the cleaning module 120; the clean water tank 130, the sewage tank 140, the sewage extraction pipeline 141, the sewage extraction fan 142 and the sewage discharge pipeline 150 are arranged in the main body of the floor scrubber. The cleaning device 100 may also include: a missing corner space 170, configured so that when the cleaning device 100 is assembled on the maintenance station 200, the cleaning device 100 is snap-fitted with the maintenance station 200; wherein the discharge outlet of the second sewage discharge pipeline 152 is located in the missing corner space 170. The missing corner space 170 is used to match the maintenance station 200 and be connected to the maintenance station 200; the discharge outlet of the second sewage discharge pipeline 152 is arranged in the missing corner space 170; the sewage discharge direction of the discharge outlet is vertically downward. Specifically, the first bending structure 1521 extends the discharge outlet of the second sewage discharge pipeline 152 to the missing corner space 170.

[0047] In some embodiments, the drain outlet 143 is located at the bottom of the sewage tank 140. The drain outlet 143 of the present disclosure is located at the bottom of the sewage tank 140 and cooperates with the drain pipe 150. The drain pipe 150 has at least one point located above the highest water level of the sewage tank 140, forming a sealed structure with the drain outlet 143 at the bottom of the sewage tank 140. When the sewage tank 140 is filled with sewage, it forms a watertight seal, preventing sewage leakage, air ingress, and the escape of odors from the sewage tank 140.

[0048] Figure 5 shows a schematic diagram of a pressure-stop valve provided according to some embodiments of the present disclosure. As shown in Figure 5, in some embodiments, the cleaning device 100 may further include: a pressure-stop valve 180, which is arranged at one end of the second sewage discharge pipe 152 near the discharge outlet, and the pressure-stop valve is at a preset distance from the discharge outlet, so that the external sewage discharge pipe is connected to the sewage discharge pipe after passing through the pressure-stop valve at the preset distance. In some embodiments, the pressure-stop valve 180 is arranged at the discharge outlet of the second sewage discharge pipe 152. When the cleaning device 100 arrives at the maintenance station 200, the pressure-stop valve 180 is put on the external sewage discharge pipe 220 of the maintenance station 200, and the external sewage discharge pipe 220 passes through the pressure-stop valve 180 and extends into the interior of the second sewage discharge pipe 152. In some embodiments, the pipe wall of the inlet of the external sewage discharge pipe 220 extends into the interior of the limiting portion 190 as shown in Figure 7. The limiting portion 190 can ensure that the second sewage pipe 152 is tightly connected to the external sewage pipe 220 to prevent air leakage and liquid leakage. When the external sewage pipe 220 on the maintenance station 200 is inserted into the body of the cleaning device 100, the external sewage pipe 220 is at a certain distance from the sewage channel of the second sewage pipe 152 to cover the pressure-stop valve 180 at the discharge outlet of the second sewage pipe 152, thereby preventing dirt from adhering to the pressure-stop valve 180 and affecting the operation of the pressure-stop valve 180 when recovering sewage. For example, when the cleaning device 100 is separated from the maintenance station 200, the pressure-stop valve 180 cannot be completely closed when switched to a closed state; the pressure-stop valve 180 disclosed in the present invention can prevent air leakage. When the cleaning device 100 leaves the maintenance station 200, if the sewage exhaust fan 142 continues to work, outside air will enter from the discharge outlet of the sewage pipe 150, thereby reducing the pressure in the sewage exhaust pipe 141 and affecting the recovery efficiency at the brush head.

[0049] FIG6 is a schematic diagram illustrating the open state of the pressure-stop valve 180 provided in accordance with some embodiments of the present disclosure. As shown in FIG6 , in some embodiments, the pressure-stop valve 180 is made of an elastic material; the external sewage pipe 220 passes through the pressure-stop valve 180 by a preset distance and then docks with the second sewage pipe 152. The external sewage pipe 220 on the maintenance station 200 is inserted into the second sewage pipe 152 of the cleaning device 100 body and is inserted a certain distance (i.e., a preset distance) to cover the pressure-stop valve 180, thereby preventing dirt from adhering to the pressure-stop valve 180 and affecting its operation. The pressure-stop valve 180 is an elastically deformable structure. When the external sewage pipe 220 is inserted into the second sewage pipe 152, the pressure-stop valve 180 is deformed into a tubular channel under force to allow the sewage in the sewage tank 140 to be discharged through the first sewage pipe 151, the second sewage pipe 152 and the external sewage pipe 220; when the second sewage pipe 152 is pulled out of the external sewage pipe 220, the pressure-stop valve 180 returns to a sealed state under the action of its own elastic force.

[0050] In some embodiments, the pressure-stop valve 180 may include: a first fixing portion 181 and a second fixing portion 182, and the pressure-stop valve 180 is fixed to the pipe wall of the second sewage pipe 152 near one end of the discharge port through the first fixing portion 181; a pressure-stop portion 183, which is arranged between the first fixing portion 181 and the second fixing portion 182, and when the external sewage pipe 220 is not inserted into the pressure-stop valve 180, the pressure-stop portion 183 contracts and closes, and when the external sewage pipe 220 passes through the pressure-stop valve 180, the pressure-stop portion 183 opens toward the pipe wall of the second sewage pipe 152. Specifically, the first fixing portion 181 and the second fixing portion 182 are made of a hard material, and the pressure stop portion 183 is an elastically deformable structure. When the external sewage pipe 220 is inserted into the second sewage pipe 152 through the first fixing portion 181, the external sewage pipe 220 passes through the pressure stop portion 183. When passing through the pressure stop portion 183, the pressure stop portion 183 is squeezed and deformed into a tubular channel to allow the sewage in the sewage tank 140 to be discharged through the first sewage pipe 151, the second sewage pipe 152 and the external sewage pipe 220. The external sewage pipe 220 then passes through the second fixing portion 182 and enters the second sewage pipe 152. The pipe wall of the inlet of the external sewage pipe 220 extends into the interior of the limiting portion 190. When the second sewage pipe 152 is pulled out of the external sewage pipe 220, the pressure stop portion 183 restores the sealing state due to its own elastic force.

[0051] In some embodiments, the pressure stop portion 183 may include: a first pressure plate 1831 and a second pressure plate 1832, which are symmetrically arranged between the first fixed portion 181 and the second fixed portion 182, and are configured such that when the external sewage pipe 220 passes through the pressure stop portion 183, the first pressure plate 1831 and the second pressure plate 1832 are deformed in directions away from each other, and when the external sewage pipe 220 is pulled out of the pressure stop portion 180, the first pressure plate 1831 and the second pressure plate 1832 are deformed in directions close to each other, thereby sealing the second sewage pipe 152. In some embodiments, the first pressing piece 1831 and the second pressing piece 1832 are elastic pressing pieces, and the first pressing piece 1831 and the second pressing piece 1832 block the passage of the pressure-stop valve 180; when the external sewage pipe 220 passes through the pressure-stop valve 180, the first pressing piece 1831 is deformed in a direction away from the second pressing piece 1832, and the second pressing piece 1832 is deformed in a direction away from the first pressing piece 1831. When the external sewage pipe 220 is inserted into the second sewage pipe 152 from the first fixing portion 181, the external sewage pipe 220 passes through the pressure-stop portion 183; the first pressing piece 1831 is deformed in a direction away from the second pressing piece 1832, and the second pressing piece 1832 is deformed in a direction away from the first pressing piece 1831, thereby deforming the pressure-stop portion 183 into a tubular passage to allow the sewage in the sewage tank 140 to pass through the first sewage pipe 151 and the second The sewage pipe 152 and the external sewage pipe 220 are discharged; the external sewage pipe 220 passes through the second fixed part 182 and enters the second sewage pipe 152, and the pipe wall of the inlet of the external sewage pipe 220 extends into the interior of the limiting part 190; when the second sewage pipe 152 is pulled out from the external sewage pipe 220, the elastic force of the pressure stop part 183 itself causes the first pressing piece 1831 and the second pressing piece 1832 to block the passage of the pressure stop valve 180 and restore the sealing state.

[0052] In some embodiments, the first pressing piece 1831 is a V-shaped structure, which may include a first pressing plate and a second pressing plate; the outer wall of the connection between the first pressing plate and the second pressing plate constitutes a first edge; the second pressing piece 1832 is a V-shaped structure, which may include a third pressing plate and a fourth pressing plate; the outer wall of the connection between the third pressing plate and the fourth pressing plate constitutes a second edge; wherein, when the pressure stop valve 180 is in a blocked state, the extension direction of the first edge and the second edge is the same as the radial direction of the pressure stop valve 180; the first edge and the second edge contact each other to block the passage of the pressure stop valve 180; when the pressure stop valve 180 is in an open state, the first edge is deformed in a direction away from the second edge, and the second edge is deformed in a direction away from the first edge, and the first edge and the second edge are no longer in contact, so that the pressure stop valve 180 is opened.

[0053] When the external sewage pipe 220 is inserted into the second sewage pipe 152 from the first fixing portion 181; the external sewage pipe 220 contacts the first pressing plate and the third pressing plate of the pressing stop portion 183, so that the first edge of the first pressing piece 1831 is deformed in the direction away from the second edge, and the second edge of the second pressing piece 1832 is deformed in the direction away from the first edge, so that the external sewage pipe 220 passes through the first pressing piece 1831 and the second pressing piece 1832, and the external sewage pipe 220 then passes through the second fixing portion 182 into the second sewage pipe 152, and the external sewage pipe 220 is connected to the second sewage pipe 152. 0 inlet extends into the interior of the limiting portion 190; when the external sewage pipe 220 passes through the pressure stop portion 183, the pressure stop portion 183 is squeezed and deformed into a tubular channel to allow the sewage in the sewage tank 140 to pass through, and the sewage flows out from the sewage outlet 143 of the sewage tank 140, and is discharged through the first sewage pipe 151, the second sewage pipe 152 and the external sewage pipe 220 in sequence; when the second sewage pipe 152 is pulled out of the external sewage pipe 220, the elastic force of the pressure stop portion 183 causes the first edge and the second edge to return to each other until they contact each other, thereby blocking the passage of the pressure stop valve 180 and restoring the sealing state.

[0054] Figure 7 shows a schematic diagram of a limiting portion provided according to some embodiments of the present disclosure. Figure 8 shows a schematic diagram of a limiting portion provided according to other embodiments of the present disclosure. As shown in Figures 7 and 8, in some embodiments, the cleaning device 100 may further include: a limiting portion 190, which is arranged on the inner wall of the second sewage pipe 152 near one end of the pressure stop valve 180, and the limiting portion 190 is used to limit and fix the external sewage pipe 220, and place the end of the external sewage pipe 220 inside the limiting portion 190 to prevent the external sewage pipe 220 from moving in the second sewage pipe 152, and also prevent sewage from flowing out along the outer wall of the external sewage pipe 220 during the sewage discharge process. The limiting portion 190 is used to limit the pipe mouth of the external sewage pipe 220, and the limiting portion 190 includes: a limiting pipe 191, the diameter of the limiting pipe 191 is smaller than the diameter of the second sewage pipe 152; a fixing portion 192, the fixing portion 192 is an annular plate, the inner ring of the annular plate is fixed to the limiting pipe 191 (one end), and the outer ring of the annular plate is fixed to the second sewage pipe 152, the radial direction of the annular fixing portion 192 is consistent with the radial direction of the second sewage pipe 152, the limiting pipe 191 is arranged parallel to the inner wall of the second sewage pipe 152, so that a tubular gap is formed between the limiting pipe 191 and the second sewage pipe 152, and the gap matches the pipe wall of the external sewage pipe 220. When the external sewage pipe 220 is inserted into the second sewage pipe 152, one end of the external sewage pipe 220 is placed just in the gap.

[0055] According to a specific embodiment of the present disclosure, on the other hand, the present disclosure provides a cleaning device 100, comprising: a sewage tank 140, wherein a sewage outlet 143 is provided at the bottom of the sewage tank 140; a sewage outlet pipe 150, wherein the sewage outlet pipe 150 is connected to the sewage outlet 143; a pressure-stop valve 180, which is arranged at one end of the outlet near the sewage outlet of the sewage outlet pipe 150, and the pressure-stop valve 180 is at a preset distance from the outlet, so that the external sewage outlet pipe 220 is connected to the sewage outlet pipe 150 after passing through the pressure-stop valve 180 at the preset distance. Specifically, the pressure-stop valve 180 is located on the side of the outlet away from the sewage outlet pipe 150, that is, the pressure-stop valve 180 is not provided on the sewage outlet pipe 150; an interface for connecting to the external sewage outlet pipe 220 is provided in the inner wall of the pipe of the outlet, and the distance between the interface and the pressure-stop valve is a preset distance.

[0056] In some embodiments, the pressure-stop valve 180 may include: a first fixing portion 181 and a second fixing portion 182, and the pressure-stop valve 180 is fixed to the pipe wall of the sewage pipe 150 near one end of the discharge port through the first fixing portion 181; a pressure-stop portion 183, which is arranged between the first fixing portion 181 and the second fixing portion 182, and when the external sewage pipe 220 is not inserted into the pressure-stop valve 180, the pressure-stop portion 183 contracts and closes, and when the external sewage pipe 220 passes through the pressure-stop valve 180, the pressure-stop portion 183 opens toward the pipe wall of the sewage pipe 150.

[0057] In some embodiments, the pressure stop portion 183 may include: a first pressure plate 1831 and a second pressure plate 1832, which are symmetrically arranged between the first fixed portion 181 and the second fixed portion 182, and are configured such that when the external sewage pipe 220 passes through the pressure stop portion 183, the first pressure plate 1831 and the second pressure plate 1832 are deformed in directions away from each other, and when the external sewage pipe 220 is pulled out of the pressure stop portion 183, the first pressure plate 1831 and the second pressure plate 1832 are deformed in directions close to each other, thereby sealing the sewage pipe 150.

[0058] In some embodiments, the cleaning device 100 may further include: a limiting portion 190 , which is disposed on the inner wall of the sewage pipe 150 near one end of the pressure-stop valve 180 , and the limiting portion 190 is used to limit the external sewage pipe 220 .

[0059] According to a specific embodiment of the present disclosure, in another aspect, the present disclosure provides a cleaning system, which may include: a cleaning device 100 as described in any one of the above technical solutions; and a maintenance station 200 that provides maintenance functions for the cleaning device 100.

[0060] In some embodiments, the maintenance station 200 may include an external sewage pipe 220 , wherein the external sewage pipe 220 is connected to the second sewage pipe 152 for discharging sewage.

[0061] In some embodiments, the maintenance station 200 may include: a sealing ring 221, which is provided on the outer side wall of the end of the external sewage pipe 220, and is used for sealing after being connected to the second sewage pipe 152.

[0062] In some embodiments, when the cleaning device 100 is placed on the maintenance station 200, the external sewage pipe 220 is located in the missing corner space 170 and is matched with the second sewage pipe 152. The end of the external sewage pipe 220 with the sealing ring 221 is placed in the limit portion 190; wherein, the opening direction of the external sewage pipe 220 is vertically upward. In some embodiments, the opening of the external sewage pipe 220 is upward, and the discharge outlet of the second sewage pipe 152 is downward. When the cleaning device 100 is placed on the maintenance station 200, the external sewage pipe 220 extends into the interior of the second sewage pipe 152. It should be noted that the upward and downward in this embodiment are both in the vertical direction. In actual use, the opening of the external sewage pipe 220 is upward, and the discharge outlet of the second sewage pipe 152 is downward.

[0063] Figure 9 shows a schematic diagram of a clean water tank 130 provided according to some embodiments of the present disclosure. As shown in Figure 9, in some embodiments, the cleaning device 100 may further include: a clean water tank 130; an exhaust hole is provided at the top of the clean water tank 130; the clean water tank 130 is also provided with a guide pipe 134, one end of the guide pipe 134 is connected to the exhaust hole, and the other end is connected to a set drainage point. It should be noted that the top of the clean water tank 130 refers to the position above the maximum water level line in the clean water tank 130 during the use of the cleaning device 100. The set drainage point can be on the maintenance station 200 and connected to a pipe on the maintenance station 200 that can drain water (for example: the external sewage pipe 220). In some embodiments, the set drainage point is set on the chassis of the maintenance station 200. When the cleaning device 100 is placed on the maintenance station 200 for water replenishment, excessive water replenishment may cause the water in the clean water tank 130 to overflow from the exhaust hole. The present disclosure provides the guide pipe 134 at the exhaust hole to direct the overflowed water to the desired location, thereby preventing the injected water or cleaning liquid from overflowing and remaining inside the body of the cleaning device 100 to affect other components.

[0064] Figure 10 shows a schematic diagram of a first float and a second float according to some embodiments of the present disclosure. As shown in Figure 10 , in some embodiments, the cleaning device 100 may further include: a first float 132 disposed at the bottom of the clean water tank 130; and a second float 133 disposed at the highest water level in the clean water tank 130. The state of the cleaning liquid in the clean water tank 130 is determined by detecting the positions of the first float 132 and the second float 133. For example, the detection of the corresponding float positions can be achieved by providing detectable devices on the first float 132 and the second float 133, and providing detection devices on the body of the cleaning device 100 and at preset detection positions. Specifically, any known technology can be used to achieve position detection, such as Hall or photoelectric detection. Specifically, the position of the first float 132 is used to reflect whether there is no water in the clean water tank 130, and the position of the second float 133 is used to reflect whether the cleaning liquid in the clean water tank 130 has reached a predetermined water level line (i.e., full water). For example, when the first float 132 does not float, there is no detection signal. When the liquid level is higher than the first float 132, the first float 132 floats to a preset height and generates a detection signal. The correspondence between the detection signal and the position is also reverse. The same applies to the second float 133 and will not be repeated. At the same time, since the position information of the first float 132 and the second float 133 cannot be detected when the clean water tank 130 is not in place, the dual verification of the first float 132 and the second float 133 can be used to detect whether the clean water tank is in place, full, or empty. Specifically, in State 1, clean water tank 130 is not in place: both the first float 132 and the second float 133 have no signal; in State 2, full: the first float 132 has a signal, the second float 133 has no signal; in State 3, empty: the first float 132 has no signal, the second float 133 has a signal; in State 4, water present but not full: the first float 132 has a signal, the second float 133 has a signal. When the maintenance station 200 fills the cleaning device 100 with water, it can control the operation based on the above-mentioned detection status, for example, stopping water replenishment in State 1-2 and continuing water replenishment in State 3-4.

[0065] FIG11 shows a schematic diagram of a reversing valve 10 provided according to some embodiments of the present disclosure. FIG12 shows a schematic diagram of a reversing valve provided according to other embodiments of the present disclosure. As shown in FIG11 and FIG12, in some embodiments, the cleaning device 100 may further include: a reversing valve 10, the reversing valve 10 including: a first connecting hole 11, a second connecting hole 12 and a third connecting hole 13; wherein, as shown in FIG11, when the cleaning device 100 is in working state (i.e., when the cleaning device 100 has left the maintenance station 200 and the cleaning module needs cleaning fluid), the first connecting hole 11 is connected to the second connecting hole 12, and the first connecting hole 11 is not connected to the third connecting hole 13; as shown in FIG12, when the cleaning device 100 is assembled on the maintenance station 200, the reversing valve 10 is triggered, the first connecting hole 11 is not connected to the second connecting hole 12, and the first connecting hole 11 is connected to the third connecting hole 13. The first connecting hole 11 is connected to the water inlet of the clean water tank 130, the second connecting hole 12 is connected to the water distribution pipeline of the roller brush 121, and the third connecting hole 13 is used to connect the second water injection pipeline of the maintenance station 200. During actual use, when the cleaning device 100 is placed on the maintenance station 200, the second water injection pipeline of the maintenance station 200 is connected to the third connecting hole 13, and the reversing valve 10 is triggered, the first connecting hole 11 is connected to the third connecting hole 13, and the first connecting hole 11 is disconnected from the second connecting hole 12. In some embodiments, the cleaning device 100 further includes: a first water injection pipeline 135, which is connected to the water inlet of the clean water tank 130 and is used to inject water into the clean water tank 130.

[0066] Specifically, the reversing valve 10 may further include: a clean water chamber 14, the first connecting hole 11 and the second connecting hole 12 are arranged on the side wall of the clean water chamber 14, the third connecting hole 13 is arranged on the bottom surface of the clean water chamber 14, the first connecting hole 11, the first connecting hole 11 and the third connecting hole 13 are all connected to the clean water chamber 14, and a countersunk hole 104 is opened on the top surface of the clean water chamber 14; a trigger mechanism 15, the trigger mechanism 15 is arranged in the clean water chamber 14, the trigger mechanism 15 includes a spring 105, a connecting rod 106 and a sealing portion 107, the sealing portion 107 is arranged on the The clean water chamber 14 is located at one end near the third connecting hole 13 and is used to seal the third connecting hole 13. One end of the connecting rod 106 passes through the sealing portion 107 and extends to a trigger point 1061. The connecting rod 106 is fixedly connected to the sealing portion 107, and the other end of the connecting rod 106 is disposed within the counterbore 104. The spring 105 is sleeved on the outer wall of the connecting rod 106. One end of the spring 105 is disposed within the counterbore 104, and the other end elastically presses against the end of the sealing portion 107 near the clean water chamber 14, causing the sealing portion 107 to seal the third connecting hole 13. In some embodiments, the reversing valve 10 may further include a gasket 1062 disposed between the spring 105 and the sealing portion 107; or the gasket 1062 and the connecting rod 106 are integrally structured and located between the spring 105 and the sealing portion 107. In actual use, when the cleaning device 100 is assembled on the maintenance station 200, the maintenance station 200 will press the trigger point 1061 upward due to the action of gravity, causing the spring 105 to deform and the linkage rod 106 to be lifted together with the sealing portion 107. Without the sealing portion 107 blocking it, the third connecting hole 13 is connected to the clean water chamber 14. It should be noted that when filling water, the cleaning liquid valve of the cleaning module 120 is closed, and the injected cleaning liquid enters the clean water chamber 14 through the third connecting hole 13 through the second water filling pipe 230, then flows into the first water filling pipe 135 through the first connecting hole 11, and finally enters the clean water tank 130 through the water inlet. The cleaning liquid valve can be a conventional valve in the relevant technology, such as a solenoid valve, or it can utilize the self-locking function of the pump body of the pumping cleaning liquid as a valve, such as a peristaltic pump.

[0067] In actual use, when water needs to be added to the clean water tank 130 , the cleaning device 100 is placed on the maintenance station 200 , and the second water injection pipeline 230 is connected to the first water injection pipeline 135 to inject water into the clean water tank 130 .

[0068] In some embodiments, a one-way valve 1351 is provided at one end of the first water filling pipe 135 away from the water filling port to prevent the cleaning liquid in the water supply pipe from leaking out. This prevents the water in the water filling pipe from flowing out after the cleaning device 100 is suddenly lifted. During actual use, when it is necessary to fill water into the clean water tank 130, the cleaning device 100 is placed on the maintenance station 200 and water filling begins. After the water filling is completed, the maintenance station 200 stops filling water into the clean water tank 130. However, at this time, there is still cleaning liquid in the first water filling pipe 135. If the cleaning device 100 is directly removed from the maintenance station 200, the cleaning liquid in the first water filling pipe 135 will flow out. The present disclosure sets the one-way valve 1351 at one end of the first water injection pipeline 135 away from the water injection port to prevent the cleaning liquid from flowing back. When the cleaning equipment 100 is unloaded from the maintenance station 200, the cleaning liquid remaining in the first water injection pipeline 135 will not flow out.

[0069] The present disclosure is intended to protect a cleaning device and a cleaning system. The cleaning device 100 includes: a sewage tank 140, the sewage tank 140 having a sewage outlet 143; and a sewage pipe 150, the sewage pipe 150 communicating with the sewage outlet 143. The sewage pipe 150 has at least one portion located above the highest water level of the sewage tank 140. In one specific embodiment, the sewage pipe 150 includes: a first sewage pipe 151 communicating with the sewage outlet 143; and a second sewage pipe 152 communicating with the first sewage pipe 151. The discharge port of the second sewage pipe 152 is located below the sewage outlet 143. The cleaning device 100 provided by the present disclosure is redesigned so that at least one portion of the second sewage pipe 152 is located above the highest water level of the sewage tank 140. The cleaning device 100 disclosed in the present invention can omit the sealing valve in the second sewage pipe 152, and the sewage in the sewage tank 140 will not flow out along the sewage pipe 150. In addition, the cleaning device 100 disclosed in the present invention will not leak sewage when leaving the maintenance station 200. Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other. For the system or device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description.

[0070] According to a specific embodiment of the present disclosure, on the one hand, the present disclosure provides a cleaning device, including: a sewage tank 140, the sewage tank 140 is provided with a sewage outlet 143; a sewage pipe 150, the sewage pipe 150 is connected to the sewage outlet 143; wherein, the sewage pipe 150 has at least one point whose height is higher than the height of the highest water level line of the sewage tank 140.

[0071] In some embodiments, the sewage pipe 150 includes: a first sewage pipe 151, the first sewage pipe 151 is connected to the sewage outlet 143; a second sewage pipe 152, the second sewage pipe 152 is connected to the first sewage pipe 151; the discharge port position of the second sewage pipe 152 is lower than the sewage outlet 143.

[0072] In some embodiments, the second sewage pipe 152 is an inverted U-shaped structure.

[0073] In some embodiments, the second sewage pipe 152 extends along the inner wall of the sewage tank 140 or extends along the outer wall of the sewage tank 140 .

[0074] In some embodiments, a first bending structure 1521 is formed at one end of the second sewage discharge pipe 152 close to the discharge port. The first bending structure 1521 is configured to communicate with the external sewage discharge pipe 220 .

[0075] In some embodiments, the first sewage discharge pipe 151 forms a second bent structure, and the sewage discharge port 143 is located at an end of the second bent structure.

[0076] In some embodiments, the cleaning device further includes: a missing corner space 170 , configured so that when the cleaning device 100 is assembled on the maintenance station 200 , the cleaning device 100 is snap-fitted to the maintenance station 200 ; wherein the discharge outlet of the sewage pipe 150 is located in the missing corner space 170 .

[0077] In some embodiments, the sewage outlet 143 is located at the bottom of the sewage tank 140 .

[0078] According to a specific embodiment of the present disclosure, on the other hand, the present disclosure provides a cleaning device, including: a sewage tank 140, the sewage tank 140 is provided with a sewage outlet 143; a sewage pipe 150, the sewage pipe 150 is connected to the sewage outlet 143; a pressure stop valve 180, which is arranged at one end of the discharge outlet near the sewage pipe 150, and the pressure stop valve 180 has a preset distance from the discharge outlet, so that the external sewage pipe 220 passes through the pressure stop valve 180 by the preset distance and is connected to the sewage pipe 150.

[0079] In some embodiments, the pressure stop valve includes: a first fixing portion 181 and a second fixing portion 182, and the pressure stop valve 180 is fixed to the pipe wall of the second sewage pipe 152 near the discharge port end through the first fixing portion 181; a pressure stop portion 183, which is arranged between the first fixing portion 181 and the second fixing portion 182, and when the external sewage pipe 220 is not inserted into the pressure stop valve 180, the pressure stop portion 183 contracts and closes, and when the external sewage pipe 220 passes through the pressure stop valve 180, the pressure stop portion 183 expands toward the pipe wall of the second sewage pipe 152. In some embodiments, the pressure-stop portion includes: a first pressure piece 1831 and a second pressure piece 1832, which are symmetrically arranged between the first fixed portion 181 and the second fixed portion 182, and are configured so that when the external sewage pipe 220 passes through the pressure-stop portion 183, the first pressure piece 1831 and the second pressure piece 1832 are deformed in directions away from each other, and when the external sewage pipe 220 is pulled out of the pressure-stop portion 180, the first pressure piece 1831 and the second pressure piece 1832 are deformed in directions close to each other, thereby sealing the sewage pipe 150.

[0080] In some embodiments, the system further includes: a limiting portion 190 , which is disposed on the inner wall of the sewage pipe 150 near one end of the pressure-stop valve 180 , and the limiting portion 190 is used to limit the external sewage pipe 220 .

[0081] According to a specific embodiment of the present disclosure, in another aspect, the present disclosure provides a cleaning system, comprising: a cleaning device 100 as described in any one of the above technical solutions; and a maintenance station 200 that provides maintenance functions for the cleaning device 100.

[0082] In some embodiments, the maintenance station 200 includes an external sewage pipe 220 , which is connected to the sewage pipeline 150 for discharging sewage.

[0083] In some embodiments, the cleaning system further includes: a sealing ring 221 , which is disposed on the outer side wall of the end of the external sewage pipe 220 and is used for sealing after being connected to the second sewage pipe 150 .

[0084] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present disclosure.

Claims

1. A cleaning device comprising: A sewage tank, wherein the sewage tank is provided with a sewage outlet; A sewage discharge pipeline, the sewage discharge pipeline is connected with the sewage discharge port; Wherein, the height of at least one point of the sewage discharge pipeline is higher than the height of the highest water level line of the sewage tank.

2. The cleaning device according to claim 1, wherein: The sewage pipeline comprises: a first sewage discharge pipeline, the first sewage discharge pipeline being in communication with the sewage discharge port; a second sewage discharge pipeline, the second sewage discharge pipeline being in communication with the first sewage discharge pipeline; The discharge outlet of the second sewage discharge pipeline is located lower than the sewage discharge outlet.

3. The cleaning device according to claim 2, wherein: The second sewage discharge pipeline is an inverted U-shaped structure.

4. The cleaning device according to claim 2, wherein: The second sewage discharge pipeline extends along the inner wall of the sewage tank or along the outer wall of the sewage tank.

5. The cleaning device according to claim 2, wherein: A first bending structure is formed at one end of the second sewage discharge pipeline close to the discharge port, and the first bending structure is configured to communicate with an external sewage discharge pipeline.

6. The cleaning device according to claim 2, wherein: The first sewage discharge pipeline forms a second bending structure, and the sewage discharge port is located at an end of the second bending structure.

7. The cleaning device according to claim 1, further comprising: The missing corner space is configured so that when the cleaning device is assembled on the maintenance station, the cleaning device is engaged with the maintenance station; Wherein, the discharge outlet of the sewage discharge pipeline is located in the missing corner space.

8. The cleaning device according to any one of claims 1 to 7, wherein: The sewage outlet is arranged at the bottom of the sewage tank.

9. A cleaning system comprising: The cleaning device according to any one of claims 1 to 8; as well as, A maintenance station provides maintenance functions for the cleaning device.

10. The cleaning system according to claim 9, wherein: The maintenance station comprises: An external sewage pipe is connected to the sewage pipeline and is used to discharge sewage.

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