Sewage tank and cleaning device

Abstract

This utility model discloses a sewage tank and a cleaning device. The sewage tank includes: a tank body with a top; a cover assembly; the cover assembly is disposed on the tank body; wherein, the cover assembly is provided with a sewage inlet pipe, one end of which is a sewage inlet and the other end is a sewage outlet, and the sewage inlet pipe has a bent structure that bends and protrudes towards the top of the tank relative to the sewage inlet and outlet. This effectively prevents sewage backflow, thus avoiding sewage from flowing back into the sewage inlet pipe and avoiding the need for a separator in the sewage inlet pipe to block sewage, which would increase the number of parts and assembly difficulty.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a sewage tank and cleaning equipment. Background Technology

[0002] With the development of smart homes, various intelligent cleaning devices have been widely used in households, becoming helpful assistants for home cleaning. Common intelligent cleaning devices include cleaning robots, floor scrubbers, and vacuum cleaners. These devices use negative pressure to draw the solid-liquid mixture from the floor through an inlet pipe into a wastewater tank. Inside the wastewater tank, a filtration device divides the interior into a solid waste compartment and a liquid storage compartment. The filtration device in the wastewater tank filters out solid waste from the solid-liquid mixture, and the filtered liquid is stored in the liquid storage compartment.

[0003] In related technologies, during the use of floor scrubbers, sewage in the inlet pipe is prone to backflow. Generally, a separator is installed below the inlet pipe to prevent sewage backflow, which increases the number of parts and the complexity of assembly. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a sewage tank that can prevent sewage backflow, thereby avoiding the backflow of sewage from the inlet pipe to the inlet port, and also eliminating the need for partitions in the inlet pipe to block sewage, which would otherwise increase the number of parts required.

[0005] This utility model also proposes a cleaning device.

[0006] A sewage tank according to a first aspect of the present invention includes: a tank body having a top; a cover assembly; the cover assembly being disposed on the tank body; wherein, a sewage inlet pipe is provided on the cover assembly, one end of the sewage inlet pipe being an inlet and the other end being an outlet, and the sewage inlet pipe having a bent structure that bends and protrudes toward the top of the tank relative to the inlet and the outlet.

[0007] Therefore, the sewage tank can prevent sewage from flowing back into the inlet pipe, thus avoiding the need to install partitions in the inlet pipe to block sewage, which would increase the number of parts and the difficulty of assembly.

[0008] According to some embodiments of the present invention, the sewage inlet pipe includes: a sewage inlet connector, one end of which is the sewage inlet; and a sewage inlet pipe body, one end of which is connected to the other end of the sewage inlet connector and the other end of which is the sewage outlet, wherein the sewage inlet connector and / or the sewage inlet pipe body are configured with the bending structure.

[0009] According to some embodiments of the present invention, the sewage inlet connector includes: a connector body; a sewage inlet end, the sewage inlet end being obliquely connected to one end of the connector body, the connection between the sewage inlet end and the connector body being the sewage inlet, one end of the sewage inlet pipe being connected to the other end of the connector body, and the connector body and / or the sewage inlet pipe having the bending structure.

[0010] According to some embodiments of the present invention, the sewage inlet pipe body includes: a first sewage inlet pipe section, which extends along the thickness direction of the box body and is connected at one end to the other end of the connector body; a second sewage inlet pipe section, which extends along the length direction of the box body and is connected at one end to the other end of the first sewage inlet pipe section, the other end of the second sewage inlet pipe section being the sewage outlet; wherein, the connector body, the first sewage inlet pipe section, and the second sewage inlet pipe section are configured to form the bent structure.

[0011] According to some embodiments of the present invention, the dimension of the second sewage inlet pipe section in the width direction of the box increases in the direction away from the top of the box.

[0012] According to some embodiments of the present invention, the end face of the sewage inlet is constructed as an inclined surface that is inclined relative to the length direction of the box body, and the inclined surface has an angle α with the length direction of the box body, wherein α satisfies the relationship: 20°≤α≤70°.

[0013] According to some embodiments of the present invention, in the thickness direction of the box body, the bottom of the inclined surface is closer to the inlet pipe body than the top of the inclined surface.

[0014] According to some embodiments of this utility model, in the length direction of the box, the distance from the sewage inlet to the top of the box is less than the distance from the sewage outlet to the top of the box.

[0015] According to some embodiments of the present invention, the box body has a bottom, and the box body is provided with a sewage guide pipe extending along its length direction. One end of the sewage guide pipe located at the bottom of the box body is a sewage guide inlet, and the other end of the sewage guide pipe located inside the box body is a sewage guide outlet. The sewage guide outlet is arranged opposite to and connected to the sewage inlet.

[0016] A sewage tank according to a second aspect of the present invention includes: a tank body having a top; a cover assembly disposed on the tank body, the cover assembly having a sewage inlet pipe, one end of the sewage inlet pipe being a sewage inlet and the other end being a sewage outlet, the sewage inlet and the sewage outlet being spaced apart within the tank body, and in the length direction of the tank body, the distance from the sewage inlet to the top of the tank body being less than the distance from the sewage outlet to the top of the tank body.

[0017] According to some embodiments of the present invention, the portion of the sewage inlet pipe adjacent to the sewage inlet is constructed as a bent structure that bends and protrudes towards the top of the tank relative to the sewage inlet and the sewage outlet.

[0018] The cleaning device according to a third aspect embodiment of the present invention includes: the above-described wastewater tank.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a structural schematic diagram of a sewage tank according to an embodiment of the present utility model; Figure 2 This is a rear view of a sewage tank according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the internal structure of the sewage tank according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the structure of the sewage tank containing the sewage inlet pipe according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the structure of the sewage inlet connector according to an embodiment of the present utility model; Figure 6 This is a cross-sectional view of the connection between the sewage guide pipe and the sewage inlet connector according to an embodiment of the present utility model; Figure 7 This is a schematic diagram of the structure of the inlet pipe body containing the outlet according to an embodiment of the present utility model; Figure 8 This is an exploded view of the filter screen and support member according to an embodiment of the present utility model; Figure 9 This is a schematic diagram of the support member with protrusions according to an embodiment of the present utility model.

[0021] Figure label: 100. Sewage tank; 1. Box body; 11. Box top; 12. Box bottom; 2. Box lid assembly; 3. Sewage inlet pipe; 31. Sewage inlet; 311. Inclined surface; 32. Sewage outlet; 33. Bending structure; 34. Sewage inlet connector; 341. Connector body; 342. Sewage inlet end; 35. Inlet pipe body; 351. First inlet pipe section; 352. Second inlet pipe section; 4. Sewage diversion pipe; 41. Sewage diversion inlet; 42. Sewage diversion outlet; 5. Supporting components; 6. Mesh bag bracket; 7. Filter screen; 8. Deodorizing box; 9. Locking structure; 10. Fixing structure; 20. Button; 30. Connector; 301. Socket; 40. Protrusion. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0023] The following is for reference. Figures 1-9 Description of a sewage tank 100 according to an embodiment of the present utility model.

[0024] Reference Figures 1-4 As shown, the sewage tank 100 of the first aspect of the present invention includes: a tank body 1 and a tank cover assembly 2. The tank body 1 has a tank top 11. The tank cover assembly 2 is disposed on the tank body 1. The tank cover assembly 2 is provided with a sewage inlet pipe 3. One end of the sewage inlet pipe 3 is a sewage inlet 31, and the other end of the sewage inlet pipe 3 is a sewage outlet 32. The sewage inlet pipe 3 has a bent structure 33 that bends and protrudes towards the tank top 11 relative to the sewage inlet 31 and the sewage outlet 32.

[0025] Specifically, the inlet pipe on the traditional floor scrubber's housing cover is usually a vertical structure, which requires a partition to be installed below the inlet pipe to prevent sewage backflow.

[0026] The sewage tank 100 mainly consists of a tank body 1 and a cover assembly 2. The cover assembly 2 is mounted on the tank body 1, and the tank body 1 provides an installation position for the cover assembly 2. The cover assembly 2 is equipped with a sewage inlet pipe 3. One end of the sewage inlet pipe 3 is a sewage inlet 31, which allows sewage to enter through the sewage inlet 31. The other end of the sewage inlet pipe 3 is a sewage outlet 32, which allows sewage to flow out through the sewage outlet 32. Furthermore, the sewage inlet pipe 3 has a bent structure 33 that bends and protrudes towards the top of the tank 11 relative to the sewage inlet 31 and the sewage outlet 32. When the sewage tank 100 is in operation, it may tilt or lie flat, making it easy for sewage in the sewage inlet pipe 3 to flow back to the vicinity of the sewage inlet 31. Since the bent structure 33 is set to protrude towards the top of the tank 11 relative to the sewage inlet 31 and the sewage outlet 32, when sewage flows back, the bent structure 33 can block the sewage from flowing towards the sewage inlet 31. This prevents the sewage from reaching the sewage inlet 31, thus avoiding the backflow of sewage in the sewage inlet pipe 3 to the sewage inlet 31. It also avoids the need to install a separator in the sewage inlet pipe 3 to block sewage, which would increase the number of parts and the assembly difficulty, and can also reduce the number of installation steps.

[0027] Therefore, the sewage tank 100 can prevent sewage backflow, thereby avoiding sewage in the sewage inlet pipe 3 from flowing back to the sewage inlet 31, and also avoiding the need to install a partition in the sewage inlet pipe 3 to block sewage, which would increase the number of parts and the difficulty of assembly.

[0028] According to some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the sewage inlet pipe 3 includes: a sewage inlet connector 34 and a sewage inlet pipe body 35. One end of the sewage inlet connector 34 is a sewage inlet 31, and one end of the sewage inlet pipe body 35 is connected to the other end of the sewage inlet connector 34. The other end of the sewage inlet pipe body 35 is a sewage outlet 32. The sewage inlet connector 34 and / or the sewage inlet pipe body 35 are constructed with a bending structure 33.

[0029] Specifically, one end of the inlet connector 34 is an inlet 31, which facilitates the entry of sewage into the inlet connector 34. One end of the inlet pipe 35 is connected to the other end of the inlet connector 34, facilitating the flow of sewage entering the inlet connector 34 to the inlet pipe 35. Furthermore, the inlet connector 34 and / or the inlet pipe 35 are constructed with a bending structure 33. That is, the inlet connector 34 can be constructed with a bending structure 33, or the inlet pipe 35 can be constructed with a bending structure 33, or both the inlet connector 34 and the inlet pipe 35 are provided with bending structures 33. When the inlet pipe 35 is constructed with a bending structure 33, when the housing 1 is tilted, the bending structure 33 can prevent the sewage in the inlet pipe 35 from flowing back. Similarly, when the inlet connector 34 is constructed with a bending structure 33, the inlet connector 34 can prevent the sewage in the inlet pipe 35 from flowing back. Furthermore, the other end of the sewage inlet pipe 35 is the sewage outlet 32, which facilitates the flow of solid and liquid waste from the sewage out of the sewage outlet 32.

[0030] Alternatively, the inlet pipe 35 may be provided with a bending structure 33, which can prevent the backflow of sewage in the inlet pipe 35 for the first time. The inlet connector 34 may also be provided with a bending structure 33, which can prevent the backflow of sewage in the inlet pipe 35 for the second time, thereby preventing the backflow of sewage in the inlet pipe 35 multiple times.

[0031] According to some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the sewage inlet connector 34 includes: a connector body 341 and a sewage inlet end 342. The sewage inlet end 342 is obliquely connected to one end of the connector body 341. The connection between the sewage inlet end 342 and the connector body 341 is a sewage inlet 31. One end of the sewage inlet pipe body 35 is connected to the other end of the connector body 341. The connector body 341 and / or the sewage inlet pipe body 35 are constructed with a bending structure 33.

[0032] The inlet end 342 is inclinedly connected to one end of the connector body 341, which facilitates the connection between the inlet end 342 and the connector body 341, and can also change the angle of the inlet end 342 relative to the connector body 341. When it is necessary to clean the inlet pipe 3 with water from a faucet, the faucet is curved, which makes it easier for the faucet to enter the inlet end 342, thus facilitating the cleaning of the inlet pipe 3.

[0033] Furthermore, the connection between the inlet end 342 and the connector body 341 is the inlet port 31, which is located inside the inlet end 342. This allows the inlet end 342 to protect the inlet port 31. One end of the inlet pipe body 35 is connected to the other end of the connector body 341, facilitating the flow of sewage entering the connector body 341 to the inlet pipe body 35, and then allowing the sewage in the inlet pipe body 35 to flow out from the outlet port 32.

[0034] Furthermore, the connector body 341 and / or the inlet pipe 35 are constructed with a bending structure 33. That is, the connector body 341 can be constructed with a bending structure 33, or the inlet pipe 35 can be constructed with a bending structure 33, or both the connector body 341 and the inlet pipe 35 are provided with bending structures 33. When the inlet pipe 35 is constructed with a bending structure 33, when the box 1 is tilted, the bending structure 33 can block the backflow of sewage in the inlet pipe 35. Similarly, when the connector body 341 is constructed with a bending structure 33, the inlet connector 34 can block the backflow of sewage in the inlet pipe 35.

[0035] According to some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the sewage inlet pipe body 35 includes: a first sewage inlet pipe section 351 and a second sewage inlet pipe section 352. The first sewage inlet pipe section 351 extends along the thickness direction of the box body 1, and one end of the first sewage inlet pipe section 351 is connected to the other end of the connector body 341. The second sewage inlet pipe section 352 extends along the length direction of the box body 1, and one end of the second sewage inlet pipe section 352 is connected to the other end of the first sewage inlet pipe section 351. The other end of the second sewage inlet pipe section 352 is a sewage outlet 32. The connector body 341, the first sewage inlet pipe section 351 and the second sewage inlet pipe section 352 are configured into a bent structure 33.

[0036] Specifically, the sewage inlet pipe body 35 is mainly composed of a first sewage inlet pipe section 351 and a second sewage inlet pipe section 352. The first sewage inlet pipe section 351 extends along the thickness direction of the tank body 1, and the second sewage inlet pipe section 352 extends along the length direction of the tank body 1. Thus, the first sewage inlet pipe section 351 and the second sewage inlet pipe section 352 are bent. When the tank body 1 is tilted or lying flat during operation, the sewage in the second sewage inlet pipe section 352 can easily flow back to the first sewage inlet pipe section 351. Since the first sewage inlet pipe section 351 is bent relative to the second sewage inlet pipe section 352, the bend between the first sewage inlet pipe section 351 and the second sewage inlet pipe section 352 can easily block the sewage.

[0037] Furthermore, one end of the first sewage inlet pipe section 351 is connected to the other end of the connector body 341, which facilitates the flow of sewage through the connector body 341 to the first sewage inlet pipe section 351. One end of the second sewage inlet pipe section 352 is connected to the other end of the first sewage inlet pipe section 351, which facilitates the flow of sewage through the first sewage inlet pipe section 351 to the second sewage inlet pipe section 352.

[0038] Furthermore, one end of the second sewage inlet pipe section 352 is connected to the other end of the first sewage inlet pipe section 351, and the other end of the second sewage inlet pipe section 352 is the sewage outlet 32. In this way, sewage flowing through the connector body 341 can flow from the first sewage inlet pipe section 351 to the second sewage inlet pipe section 352, and finally flow out from the sewage outlet 32.

[0039] Furthermore, the connector body 341, the first sewage inlet pipe section 351, and the second sewage inlet pipe section 352 are constructed into a bent structure 33. The connector body 341 is connected to one end of the first sewage inlet pipe section 351, and then the other end of the first sewage inlet pipe section 351 is bent relative to the second sewage inlet pipe section 352. In this way, the whole can form a bent structure 33, which can not only improve the strength of the bent structure 33, but also prevent sewage backflow.

[0040] According to some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the dimension of the second inlet pipe section 352 in the width direction of the box body 1 increases in the direction away from the top of the box 11.

[0041] As sewage enters the second inlet pipe section 352, the water pressure increases with depth. The dimension of the second inlet pipe section 352 in the width direction of the tank 1 increases in the direction away from the top of the tank 11. This can better adapt to the higher water flow pressure at the bottom, reduce turbulence and impact, and improve the uniformity and stability of the water intake.

[0042] Furthermore, the dimension of the second inlet pipe section 352 in the width direction of the box 1 increases in the direction away from the top of the box 11. This can increase the space near the outlet 32 ​​and speed up the discharge of sewage, thereby reducing the risk of blockage of the outlet 32, especially for sewage containing a lot of solid waste.

[0043] According to some embodiments of this utility model, such as Figure 4 and Figure 5 As shown, the end face of the sewage inlet 31 is an inclined surface 311 that is inclined relative to the length direction of the box 1. The inclined surface 311 and the length direction of the box 1 have an angle α, and α satisfies the relationship: 20°≤α≤70°.

[0044] Specifically, the end face of the sewage inlet 31 is constructed as an inclined surface 311 relative to the length direction of the housing 1. Compared to the traditional design where the end face of the sewage inlet is horizontal, when the end face of the sewage inlet 31 is inclined relative to the length direction of the housing 1 to form an inclined surface 311, the inclined surface 311 occupies a larger space relative to the horizontal surface. This increases the area of ​​the end face of the sewage inlet 31 and improves the sewage intake efficiency. Compared to the traditional design where the end face of the sewage inlet is horizontal, since external faucets are generally curved, there is a certain interference between the faucet and the sewage inlet, making it inconvenient for the faucet and the sewage inlet to connect and cooperate. Inclining the end face of the sewage inlet 31 relative to the length direction of the housing 1 improves the end face angle of the sewage inlet 31, thereby facilitating the connection and cooperation between the sewage inlet 31 and the external faucet. Moreover, a traditional right-angled sewage inlet is prone to causing the incoming sewage to directly impact the inner wall of the sewage inlet, leading to accelerated wear of the sewage inlet or requiring higher maintenance frequency. The inlet 31 is inclined relative to the length of the tank 1, which allows the sewage entering the inlet 31 to contact the inner wall at a smaller impact angle, thus dispersing the impact force and reducing wear on specific areas.

[0045] Furthermore, when the angle between the inclined plane 311 and the length direction of the housing 1 is less than 20°, this may result in the angle of the inclined plane 311 being too small to effectively increase the area of ​​the end face of the sewage inlet 31 and improve the end face angle of the sewage inlet 31. Therefore, the angle between the inclined plane 311 and the length direction of the housing 1 should not be less than 20°.

[0046] When the angle between the inclined surface 311 and the length direction of the housing 1 is greater than 70°, the angle of the inclined surface 311 may be too large, which may easily create gaps and cause water leakage. It may also reduce the strength of the sewage inlet 31 and make the sewage inlet 31 more susceptible to deformation and damage. Therefore, the angle between the inclined surface 311 and the length direction of the housing 1 should not exceed 70°.

[0047] In summary, by controlling the angle formed by the inclined plane 311 and the length direction of the housing 1 within a reasonable range, the area and angle of the end face of the sewage inlet 31 can be effectively guaranteed simultaneously, thereby improving the sewage intake efficiency and cleaning effect at the sewage inlet 31. For example, the angle formed by the inclined plane 311 and the length direction of the housing 1 can be 20°, 30°, 45°, or 70°, etc., and is not limited to these. Preferably, an angle of 45° can be set.

[0048] According to some embodiments of this utility model, such as Figure 4 and Figure 5 As shown, in the thickness direction of the box body 1, the bottom of the inclined surface 311 is closer to the inlet pipe body 35 than the top of the inclined surface 311.

[0049] Understandably, in the cleaning state or in the static state (not lying flat), relative to the cleaning surface, in the thickness direction of the housing 1, the bottom of the inclined surface 311 is closer to the inlet pipe 35 than the top of the inclined surface 311. This facilitates the improvement of the end face angle of the inlet 31, which is beneficial for users to attach the inlet 31 to the faucet and directly clean the inlet pipe 3 containing the inlet 31 with flowing water.

[0050] According to some embodiments of this utility model, such as Figure 7 As shown, along the length of the housing 1, the distance from the inlet 31 to the top 11 of the housing is less than the distance from the outlet 32 ​​to the top 11 of the housing.

[0051] In this design, the distance from the inlet 31 to the top 11 of the tank is less than the distance from the outlet 32 ​​to the top 11. This means that when the tank 1 is upright, the inlet 31 is higher than the outlet 32 ​​in the height direction of the tank 1. As a result, the sewage flows naturally by gravity from the higher inlet 31 to the lower outlet 32, reducing reliance on power equipment such as pumps. With the outlet 32 ​​at a lower position, the sewage in the tank 1 can be discharged by gravity, facilitating cleaning, maintenance, and removal of sediment.

[0052] According to some embodiments of this utility model, such as Figure 6 As shown, the box body 1 has a bottom 12 and a sewage guide pipe 4 extending along its length. One end of the sewage guide pipe 4 located at the bottom 12 is a sewage guide inlet 41, and the other end of the sewage guide pipe 4 located inside the box body 1 is a sewage guide outlet 42. The sewage guide outlet 42 is opposite to and connected to the sewage inlet 31.

[0053] The tank 1 is equipped with a sewage guide pipe 4 extending along its length. In this way, during operation, sewage can be guided from the bottom 12 of the tank into the tank 1 through the sewage guide pipe 4, which facilitates the collection of sewage and garbage.

[0054] Furthermore, the sewage inlet 41 is located at one end of the sewage pipe 4 at the bottom 12 of the tank. Sewage can enter the sewage pipe 4 from the sewage inlet 41. The other end of the sewage pipe 4 is located inside the tank 1 as the sewage outlet 42. The sewage outlet 42 is set opposite to and connected to the sewage inlet 31. In this way, the sewage entering the sewage pipe 4 can flow out from the sewage outlet 42 and then enter the sewage inlet pipe 35 through the sewage inlet 31. The sewage entering the sewage inlet pipe 35 can flow out from the sewage outlet 32.

[0055] Furthermore, the sewage inlet connector 34, the sewage inlet pipe body 35, and the sewage guide pipe 4 can together form an inverted U-shaped pipe. When the box 1 inside the sewage inlet pipe body 35 is tilted or lying flat, the inverted U-shaped pipe formed can block sewage from flowing out from the sewage inlet 31 and the sewage guide inlet 41, thereby preventing sewage from flowing back to the outside of the box 1.

[0056] According to a second aspect embodiment of the present invention, a sewage tank 100 includes: a tank body 1 and a tank cover assembly 2. The tank body 1 has a tank top 11. The tank cover assembly 2 is disposed on the tank body 1 and is provided with a sewage inlet pipe 3. One end of the sewage inlet pipe 3 is a sewage inlet 31, and the other end of the sewage inlet pipe 3 is a sewage outlet 32. The sewage inlet 31 and the sewage outlet 32 ​​are spaced apart inside the tank body 1. In the length direction of the tank body 1, the distance from the sewage inlet 31 to the tank top 11 is less than the distance from the sewage outlet 32 ​​to the tank top 11.

[0057] The cover assembly 2 is located within the housing 1, providing a mounting position for it. The cover assembly 2 is equipped with a sewage inlet pipe 3, allowing sewage to enter the housing 1 and be collected. One end of the sewage inlet pipe 3 is an inlet 31, and the other end is an outlet 32. This allows sewage to enter the housing 1 through the inlet 31 and exit through the outlet 32. The inlet 31 and outlet 32 ​​are spaced apart within the housing 1, creating a flow path that directs sewage to the collection point.

[0058] Furthermore, along the length of the tank 1, the distance from the inlet 31 to the top 11 of the tank is less than the distance from the outlet 32 ​​to the top 11 of the tank. When the tank 1 is tilted or laid flat, since the distance from the inlet 31 to the top 11 of the tank is less than the distance from the outlet 32 ​​to the top 11 of the tank, the outlet 32 ​​is farther away from the outlet 31, thus preventing sewage from flowing back to the inlet 31 at the outlet 32.

[0059] According to some embodiments of the present invention, the portion of the sewage inlet pipe 3 adjacent to the sewage inlet 31 is constructed as a bent structure 33 that bends and protrudes towards the top of the box 11 relative to the sewage inlet 31 and the sewage outlet 32.

[0060] The bending structure 33 protrudes towards the top 11 of the tank. When the sewage tank 100 is tilted or laid flat, the sewage in the inlet pipe 3 is prone to backflow to the vicinity of the inlet 31. Since the bending structure 33 protrudes towards the bottom 12 of the tank relative to the inlet 31, when the sewage backflows, the bending structure 33 can block the sewage from flowing to the inlet 31. This prevents the sewage from reaching the inlet 31, thus avoiding the backflow of sewage in the inlet pipe 3 to the inlet 31. It also avoids the need to install a separator in the inlet pipe 3 to block the sewage, which would increase the number of parts and reduce the installation steps.

[0061] Furthermore, the lid assembly 2 also includes a support member 5, a mesh support bracket 6, a filter screen 7, and a deodorizing box 8. The inlet pipe 35 is connected to the support member 5, and the inlet pipe 35 can be integrally formed with the support member 5, which not only reduces the number of parts but also increases the strength of the inlet pipe 35. The mesh support bracket 6 can be integrally formed with the support member 5 without being detached, or the mesh support bracket 6 can be detachably set on the support member 5, and the support member 5 can be detachably connected to the filter screen 7.

[0062] Furthermore, the support member 5 and the filter screen 7 are detachably connected. The filter screen 7 and the support member 5 are doubly secured by a locking structure 9 and a fixing structure 10. The locking structure 9 uses a snap-fit ​​mechanism; the bottom of one of the filter screen 7 and the support member 5 can be a snap-fit, and the bottom of the other can be a slot. The snap-fit ​​and slot engage to lock the bottom of the filter screen 7 and the support member 5. The fixing structure 10 is an insertion structure; the top of one of the filter screen 7 and the support member 5 can be a protrusion 40, and the top of the other can be a groove. The protrusion 40 extends into the groove, thereby fixing the top of the filter screen 7 to the support member 5.

[0063] Furthermore, the mesh bag bracket 6 is used to suspend the disposable mesh bag. It is equipped with a mesh bag removal button 20 and the mesh bag bracket 6. By default, the mesh bag bracket 6 is in the open state, which can fix the filter mesh bag and allow the mesh bag to separate solids and liquids from wastewater. Pressing the button 20 moves the mesh bag bracket 6 downward, and the mesh bag can fall off by itself, making it easy to replace the mesh bag.

[0064] Furthermore, the deodorizing box 8 and the filter screen 7 are detachably connected. Specifically, the bottom of the filter screen 7 is provided with a connector 30, and the deodorizing box 8 is provided with a socket 301. The filter screen 7 and the deodorizing box 8 are detachably connected through the connector 30 and the socket 301, which facilitates the installation and removal of the filter screen 7 and the deodorizing box 8.

[0065] Furthermore, the bottom of the support member 5 is provided with multiple protrusions 40 at intervals, and the filter bag is suspended on the multiple protrusions 40. There is no need to set up an additional detachable filter bag bracket 6, which can reduce the number of parts and reduce costs.

[0066] The cleaning device according to a third aspect of the present invention includes: the sewage tank 100 of the above embodiment.

[0067] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0069] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A sewage tank, characterized in that, include: Box (1), the box (1) having a box top (11); Box cover assembly (2); the box cover assembly (2) is disposed on the box body (1); The box cover assembly (2) is provided with a sewage inlet pipe (3), one end of which is a sewage inlet (31) and the other end is a sewage outlet (32). The sewage inlet pipe (3) has a bent structure (33) that bends and protrudes relative to the sewage inlet (31) and the sewage outlet (32) toward the box top (11).

2. The sewage tank according to claim 1, characterized in that, The sewage inlet pipe (3) includes: Sewage inlet connector (34), one end of which is the sewage inlet (31). The inlet pipe (35) has one end connected to the other end of the inlet connector (34) and the other end is the outlet (32). The inlet connector (34) and / or the inlet pipe (35) are constructed with the bending structure (33).

3. The sewage tank according to claim 2, characterized in that, The sewage inlet connector (34) includes: Connector body (341); The inlet end (342) is obliquely connected to one end of the connector body (341). The connection between the inlet end (342) and the connector body (341) is the inlet port (31). One end of the inlet pipe body (35) is connected to the other end of the connector body (341). The connector body (341) and / or the inlet pipe body (35) are constructed with the bending structure (33).

4. The sewage tank according to claim 3, characterized in that, The inlet pipe (35) includes: The first sewage inlet pipe section (351) extends along the thickness direction of the box body (1) and one end is connected to the other end of the connector body (341). The second sewage inlet pipe section (352) extends along the length of the box body (1) and one end is connected to the other end of the first sewage inlet pipe section (351). The other end of the second sewage inlet pipe section (352) is the sewage outlet (32). The connector body (341), the first sewage inlet pipe section (351), and the second sewage inlet pipe section (352) are configured to form the bending structure (33).

5. The sewage tank according to claim 4, characterized in that, The dimension of the second inlet pipe section (352) in the width direction of the box body (1) increases in the direction away from the top of the box (11).

6. The sewage tank according to claim 3, characterized in that, The end face of the sewage inlet (31) is an inclined surface (311) that is inclined relative to the length direction of the box (1). The inclined surface (311) and the length direction of the box (1) have an angle α, and α satisfies the relationship: 20°≤α≤70°.

7. The sewage tank according to claim 6, characterized in that, In the thickness direction of the box (1), the bottom of the inclined surface (311) is closer to the inlet pipe (35) than the top of the inclined surface (311).

8. The sewage tank according to claim 1, characterized in that, Along the length of the box (1), the distance from the inlet (31) to the top (11) of the box is less than the distance from the outlet (32) to the top (11) of the box.

9. The sewage tank according to claim 1, characterized in that, The box (1) has a bottom (12) and a sewage guide pipe (4) extending along its length. One end of the sewage guide pipe (4) located at the bottom (12) is a sewage guide inlet (41), and the other end of the sewage guide pipe (4) located inside the box (1) is a sewage guide outlet (42). The sewage guide outlet (42) is opposite to and connected to the sewage inlet (31).

10. A sewage tank, characterized in that, include: Box (1), the box (1) having a box top (11); Box cover assembly (2), the box cover assembly (2) is disposed on the box body (1), the box cover assembly (2) is provided with a sewage inlet pipe (3), one end of the sewage inlet pipe (3) is a sewage inlet (31) and the other end is a sewage outlet (32), the sewage inlet (31) and the sewage outlet (32) are spaced apart in the box body (1), and in the length direction of the box body (1), the distance from the sewage inlet (31) to the top of the box (11) is less than the distance from the sewage outlet (32) to the top of the box (11).

11. The sewage tank according to claim 10, characterized in that, The portion of the sewage inlet pipe (3) adjacent to the sewage inlet (31) is constructed as a bent structure (33) that bends and protrudes toward the top of the box (11) relative to the sewage inlet (31) and the sewage outlet (32).

12. A cleaning device, characterized in that, include: The sewage tank according to any one of claims 1-11.

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