Anti-surge structure and cleaning device

Abstract

The utility model discloses an anti-surge structure and a cleaning device.The anti-surge structure comprises a box body, a filtering cavity and a conveying channel are arranged in the box body, the conveying channel communicates with the filtering cavity, a mixture enters the filtering cavity through the conveying channel so as to separate solids from fluid, the filtering cavity comprises a side wall and a bottom wall, and the side wall is communicated with the bottom wall. The filtering cavity and the bottom of the box body are vertically separated by the bottom wall so as to realize solid-liquid separation, a first inlet and a first outlet which are oppositely distributed are formed in the side wall, the first inlet is communicated with the conveying channel, the first outlet is used for discharging fluid out of the filtering cavity, and the bottom wall is used for retaining solids in the filtering cavity. According to the box body, solid-liquid separation is achieved through the filtering cavity, the first inlet and the first outlet which are opposite are formed in the side wall of the filtering cavity, and the first outlet is far away from the first inlet and discharges fluid laterally, so that the first outlet cannot be blocked, and the surge phenomenon can be effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and more specifically to an anti-surge structure and a cleaning device. Background Art

[0002] Sewage tanks are primarily used in cleaning devices such as vacuum cleaners and floor scrubbers. Their primary function is to collect and process sewage containing solid waste generated after cleaning operations. Currently, most vacuum cleaners, floor scrubbers, and other cleaning devices are equipped with split sewage tanks, allowing users to disassemble and clean them. Existing sewage tanks have limitations when handling sewage containing solid waste. Direct dumping can easily lead to sewer blockages, requiring users to manually separate the solid waste before dumping the sewage, significantly reducing the user experience. Some sewage tanks incorporate internal filtering components to separate solid waste from sewage, eliminating the need for users to manually clean the tank components, thereby improving the user experience.

[0003] For example, the utility model patent with authorization announcement number CN215128117U discloses a sewage recovery tank and floor cleaning equipment. The sewage recovery tank includes a sewage tank body and a sewage tank cover. The sewage tank body includes a cylindrical tank body with a sewage receiving chamber formed therein. The sewage tank cover includes a cover body that covers the open end of the tank body, and a cover opening that communicates with the sewage receiving chamber. A sewage recovery pipe is protruding from the bottom wall of the sewage receiving chamber, and the bottom end opening of the sewage recovery pipe communicates with the outside world. The sewage tank body includes a sewage filter structure that is sleeved on the sewage recovery pipe, and the edges of the sewage filter structure are abutted against the inner wall of the tank body. The sewage filter structure divides the sewage receiving chamber into a sewage receiving lower chamber and a sewage receiving upper chamber, and the top opening of the sewage recovery pipe communicates with the sewage receiving upper chamber. In this technical solution, after the sewage is filtered through the sewage filter mesh structure, larger particles of dirt and impurities in the sewage can be retained in the upper sewage holding chamber, while the sewage liquid will pass through the sewage filter mesh structure into the lower sewage holding chamber (i.e., the bottom of the sewage recovery tank), avoiding problems such as larger particles of dirt and impurities in the sewage settling to the bottom of the sewage recovery tank. However, the sewage filter mesh structure in this solution is arranged between the lower sewage holding chamber and the upper sewage holding chamber. During the process of sewage being filtered from top to bottom by the sewage filter mesh structure, larger particles of dirt and impurities in the sewage are deposited on the sewage filter mesh structure, which can easily clog the sewage filter mesh structure, thereby affecting the sewage filtration efficiency. Moreover, the longer the filtration time and the more serious the clogging, the lower the filtration efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present application is to provide an anti-surge structure and a cleaning device. The anti-surge structure realizes solid-liquid separation through a filter chamber. By arranging a relative first inlet and a first outlet on the side wall of the filter chamber, the first outlet is away from the first inlet and discharges the fluid laterally, which not only does not block the first outlet, but also can effectively reduce the surge phenomenon.

[0005] The present application provides a surge protection structure, including a box body, wherein a filter chamber and a conveying channel are provided in the box body, the conveying channel is connected to the filter chamber, and a mixture enters the filter chamber through the conveying channel to separate solid matter from fluid, the filter chamber includes a side wall and a bottom wall, the bottom wall separates the filter chamber from the bottom of the box body up and down to achieve solid-liquid separation, the side wall is provided with a first inlet and a first outlet distributed oppositely, the first inlet is connected to the conveying channel, the first outlet is used to discharge the fluid out of the filter chamber, and the bottom wall is used to retain solid matter in the filter chamber.

[0006] In the present technical solution, the anti-surge structure is mainly applied to a sewage tank, by arranging a filter chamber connected with the conveying channel in the tank body, and a first inlet and a first outlet are arranged on the side wall of the filter chamber, the first inlet is connected with the conveying channel for the entry of sewage with solid matter, and the first outlet is used for the discharge of fluid, so as to achieve separation of solid matter and fluid, and the bottom wall of the filter chamber cooperates with the first outlet on the side wall to intercept solid matter, so that the solid matter remains in the filter chamber, thereby achieving effective separation of solid matter, and the solid matter deposited on the bottom wall will not block the first outlet on the side wall, and will not affect the discharge of fluid, this lateral discharge method is conducive to gas-liquid separation, because gas is lighter, and liquid naturally sinks to the bottom of the tank body for storage due to gravity, reducing the probability of liquid shaking in the tank body, and further improving the efficiency of gas-liquid separation, it should be noted that the mixture in the present solution refers to a three-phase mixture of gas, liquid and solid, that is, sewage with solid matter, and the fluid refers to a gas-liquid mixture;

[0007] The bottom wall is set as a physical partition between the filter chamber and the bottom of the box, providing a clear solid-liquid separation interface, ensuring that solid waste is effectively intercepted in the filter chamber. The bottom wall reduces the impact force when the liquid flows into the bottom of the box by retaining the solid waste in the filter chamber, thereby effectively reducing the surge phenomenon. The bottom wall blocks the splashing of the liquid caused by violent shaking. The bottom wall separates the filter chamber and the bottom of the box from top to bottom, so that the internal space of the box is effectively utilized. At the same time, it provides separate storage space for solid waste and liquid, improving the solid-liquid separation efficiency. The liquid will not be disturbed by contact with the solid waste, further reducing the surge phenomenon.

[0008] The first inlet and the first outlet are designed to be distributed opposite to each other, and the first outlet is set away from the first inlet, which helps to reduce the mutual disturbance between the mixture and the solid matter, effectively reduces the surge phenomenon, and improves the stability of the mixture processing. The fluid is separated by lateral discharge, and the liquid is stored at the bottom of the box. The bottom wall of the filter cavity isolates the solid matter from the liquid at the bottom of the box from top to bottom, and the liquid will not be disturbed by contact with the solid matter. On the other hand, the first outlet is set laterally away from the liquid at the bottom of the box, which further reduces the surge phenomenon.

[0009] As an improvement, multiple first outlets are provided, and the first outlets are arranged in multiple layers along the height direction of the filter chamber. In this technical solution, the provision of multiple first outlets can increase the number of channels for fluid discharge, reduce the flow pressure of a single outlet, effectively avoid fluid congestion at the outlet, and improve discharge efficiency. The first outlets are arranged in a multi-layer structure along the height direction of the filter chamber. Even if the first outlets in the lower layer are blocked by separated solids, the first outlets in the upper layer can still be used to discharge fluid, without reducing the solid-liquid separation efficiency.

[0010] As an improvement, the first outlet is provided in plurality, and each of the first outlets extends in a straight line along the width direction of the filter chamber. In this technical solution, providing a plurality of first outlets can increase the number of channels for fluid discharge, reduce the flow pressure of a single outlet, effectively avoid the congestion of the fluid at the outlet, and improve the discharge efficiency. Each first outlet is provided to extend in a straight line along the width direction of the filter chamber to form a straight line structure, which helps to achieve the uniformity of the mixture dynamics, reduce the vortex and disturbance of the fluid at the first outlet, help the fluid to discharge smoothly, reduce the congestion of the fluid at the outlet, and each first outlet is independent and evenly distributed, which helps to achieve uniform discharge of the fluid across the entire width of the filter chamber and improve the discharge efficiency.

[0011] As an improvement, the first outlet is provided with multiple first outlets, and the first outlets are arranged in multiple rows along the width direction of the filter chamber. In this technical solution, the provision of multiple first outlets can increase the number of channels for fluid discharge, reduce the flow pressure of a single outlet, effectively avoid the congestion of the fluid at the outlet, and improve the discharge efficiency. The first outlet is arranged along the width direction of the filter chamber to form a multi-row structure. The multi-row arrangement helps to achieve the uniformity of the mixture dynamics, disperse the mixture pressure, reduce the vortex and disturbance of the mixture at the outlet, and the multi-row outlet disperses the discharged mixture, reducing the risk of blockage of a single outlet. The outlets arranged in multiple rows can distribute the fluid more evenly, which is beneficial to gas-liquid separation, and the fluid can be more thoroughly separated from the solid waste, thereby improving the gas-liquid-solid three-phase separation efficiency.

[0012] As an improvement, the first outlet is arranged in a grid-like shape. In this technical solution, the first outlet is designed to be grid-like, and the outlet area of ​​the filter chamber is composed of multiple parallel or cross-arranged strip-shaped through holes, forming multiple evenly distributed small outlets, which helps to improve the separation efficiency of the fluid, especially the rapid discharge of gas, and reduces the risk of blockage of a single outlet. Even if some outlets are blocked, other outlets can continue to work. The grid-like design maintains the outlet area while enhancing the strength and durability of the structure. The strip structure of the grid can withstand a certain amount of pressure and impact. The mixture is discharged through multiple small outlets, which can reduce noise and vibration. Especially when discharged at high speed, it reduces the vortex and disturbance of the mixture at the outlet, which is conducive to reducing surge phenomena.

[0013] As an improvement, the height of the first outlet on the side wall is lower than the height of the first inlet on the side wall. In this technical solution, the first outlet and the first inlet are not only designed to be distributed opposite each other but also to form a height difference, so that a certain drop is generated when the mixture flows in the filter chamber, which helps to control the flow direction of the mixture in the filter chamber, so that after the sewage with solid matter flows in from the first inlet, it flows downward to separate the solid matter, and the fluid is discharged to the first outlet. The height difference helps the solid waste to settle in the filter chamber, while the liquid and gas are more likely to flow to the lower first outlet for discharge, thereby promoting solid-liquid separation. On the other hand, the mixture flows in from a higher position and is discharged from a lower position, which reduces the disturbance of the mixture in the filter chamber and helps to reduce surge phenomenon.

[0014] As an improvement, the first inlet is located at the top of the side wall. In this technical solution, the first inlet is designed at the top of the side wall, allowing the mixture to enter the filter chamber directly from the top and flow downward under the action of gravity, allowing the bottom of the filter chamber to be used for collecting and storing solid waste, helping to form a top-to-bottom flow of the mixture. This linear flow helps reduce eddies and mixture disturbances, allowing solid waste to settle at the bottom under the action of gravity, while liquid and gas are discharged through the first outlet of the filter chamber, improving the efficiency of solid-liquid separation.

[0015] As an improvement, the first outlets are evenly distributed on both sides of the first inlet. In this technical solution, multiple first outlets are provided on both sides of the first inlet to prevent the mixture entering the first inlet from directly rushing out of the first outlet, which can better block solid matter, increase the structural strength of the filter chamber, and extend the service life.

[0016] The present application also provides a cleaning device, including any one of the aforementioned anti-surge structures. In this technical solution, the cleaning device includes a floor brush assembly and a main unit. The floor brush assembly and the box body of the anti-surge structure are both installed on the main unit. The box body can be detachably installed on the main unit. The floor brush assembly is connected to the conveying channel in the box body. The floor brush assembly sucks the sewage with solid matter into the conveying channel and performs gas-liquid-solid three-phase separation through the anti-surge structure. A filter chamber is provided in the box body. The conveying channel connects the floor brush assembly and the filter chamber. The sewage with solid matter passes through the conveying channel to the filter chamber. The filter chamber separates the solid matter from the fluid through the first outlet. The bottom wall of the filter chamber cooperates with the first outlet on the side wall to intercept the solid matter, so that the solid matter remains in the filter chamber, thereby achieving effective separation of the solid matter, and the solid matter Solids deposited on the bottom wall will not block the first outlet on the side wall and will not affect the discharge of the fluid. This lateral discharge method further improves the efficiency of gas-liquid separation; the first inlet and the first outlet are designed to be distributed opposite each other, and the first outlet is set away from the first inlet, which helps to reduce the mutual disturbance between the mixture and the solids, effectively reduces the surge phenomenon, and improves the stability of the mixture processing. The fluid is separated by lateral discharge, and the liquid is stored at the bottom of the box. The bottom wall of the filter cavity isolates the solids from the liquid at the bottom of the box from top to bottom, and the liquid will not be disturbed due to contact with the solids. On the other hand, the first outlet is set laterally away from the liquid at the bottom of the box, which further reduces the surge phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a surge protection structure of this application.

[0018] Figure 2 This is a schematic cross-sectional view of a surge protection structure of the present application.

[0019] Figure 3 This is a partial structural diagram of a surge protection structure of this application.

[0020] Figure 4 Schematic diagram of the flow path of the mixture in the box in this application.

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of a cleaning device of this application.

[0022] As shown in the figure: 1. Box body; 11. Filter cavity; 111. Side wall; 112. Bottom wall; 113. First inlet; 114. First outlet; 12. Conveying channel; 2. Floor brush assembly; 3. Main unit. DETAILED DESCRIPTION

[0023] In order to better understand the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely descriptions of exemplary embodiments of the present application and are not intended to limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0024] In the drawings, the thickness, size and shape of objects have been slightly exaggerated for ease of explanation. The drawings are only examples and are not drawn strictly to scale.

[0025] It should also be understood that the terms "comprising," "including," "having," "containing," and "including," when used in this specification, indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or combinations thereof. The terms "first," "second," and the like are primarily used to distinguish between different devices, elements, or components (the specific types and configurations of which may be the same or different), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0026] In addition, it should be noted that the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements, or components; it can be directly set on another component or another intermediate component may exist at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the invention. The terms used in the description of the present invention herein are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] like Figures 1 to 4 As shown, the present application discloses an anti-surge structure, including a box body 1, a filter chamber 11 and a conveying channel 12 are provided in the box body 1, the box body 1 is connected to the floor brush assembly 2 of the cleaning device, the floor brush assembly 2 is communicated with the conveying channel 12 in the box body 1, the floor brush assembly 2 sucks sewage containing solid matter into the conveying channel 12 and performs gas-liquid-solid three-phase separation through the anti-surge structure, the conveying channel 12 is communicated with the filter chamber 11, and the mixture enters the filter chamber 11 through the conveying channel 12 to separate the solid matter from the fluid;

[0028] The filter chamber 11 includes a side wall 111 and a bottom wall 112. The side wall 111 is provided with a first inlet 113 and a first outlet 114 distributed opposite to each other. The first inlet 113 is connected to the conveying channel 12, and the first outlet 114 is used to discharge the fluid from the filter chamber 11. The bottom wall 112 is used to leave the solid matter in the filter chamber 11. By arranging the filter chamber 11 connected to the conveying channel 12 in the box body 1, the first inlet 113 and the first outlet 114 are provided on the side wall 111 of the filter chamber 11. The first inlet 113 is connected to the conveying channel 12 for the entry of sewage with solid matter, and the first outlet 114 is used to discharge the fluid from the filter chamber 11. For the discharge of fluid and the separation of solids from fluid, the bottom wall 112 of the filter chamber 11 cooperates with the first outlet 114 on the side wall 111 to intercept solids, so that the solids remain in the filter chamber 11, thereby achieving effective separation of solids. Furthermore, solids deposited on the bottom wall 112 will not block the first outlet 114 on the side wall 111, and will not affect the discharge of fluid. This lateral discharge method is conducive to gas-liquid separation, because gas is lighter, while liquid naturally sinks to the bottom of the box body 1 due to gravity for storage, reducing the probability of liquid sloshing in the box body 1 and further improving the efficiency of gas-liquid separation.

[0029] The bottom wall 112 separates the filter chamber 11 from the bottom of the box body 1 up and down to achieve solid-liquid separation. The bottom wall 112 is set as a physical separation between the filter chamber 11 and the bottom of the box body 1, providing a clear solid-liquid separation interface, ensuring that solid waste is effectively intercepted in the filter chamber 11. The bottom wall 112 reduces the impact force when the liquid flows into the bottom of the box body 1 by retaining the solid waste in the filter chamber 11, thereby effectively reducing the surge phenomenon. The bottom wall 112 blocks the splashing of the liquid caused by violent shaking. The bottom wall 112 separates the filter chamber 11 from the bottom of the box body 1 up and down, so that the internal space of the box body 1 is effectively utilized, and at the same time provides separate storage space for solid waste and liquid, thereby improving the solid-liquid separation efficiency. The liquid will not be disturbed due to contact with the solid waste, further reducing the surge phenomenon.

[0030] like Figure 2 and Figure 4 As shown, the first inlet 113 and the first outlet 114 are designed to be distributed opposite to each other, and the first outlet 114 is arranged away from the first inlet 113, which helps to reduce the mutual disturbance between the mixture and the solid matter, effectively reduces the surge phenomenon, and improves the stability of the mixture treatment. The fluid is separated by lateral discharge, and the liquid is stored at the bottom of the box body 1. The bottom wall 112 of the filter cavity 11 isolates the solid matter from the liquid at the bottom of the box body 1 from top to bottom, and the liquid will not be disturbed due to contact with the solid matter. On the other hand, the first outlet 114 is laterally arranged away from the liquid at the bottom of the box body 1, which further reduces the surge phenomenon.

[0031] More specifically, Figure 3As shown, there are multiple first outlets 114, and the first outlets 114 are arranged in multiple layers along the height direction of the filter chamber 11. Providing multiple first outlets 114 can increase the number of channels for fluid discharge, reduce the flow pressure of a single outlet, effectively avoid fluid congestion at the outlet, and improve discharge efficiency. The first outlets 114 are arranged in a multi-layer structure along the height direction of the filter chamber 11. Even if the first outlet 114 of the lower layer is blocked by the separated solid matter, the first outlet 114 of the upper layer can still be used to discharge the fluid, and the solid-liquid separation efficiency will not be reduced.

[0032] More specifically, Figure 3 As shown, there are multiple first outlets 114, and the first outlets 114 all extend in a straight line along the width direction of the filter chamber 11. Providing multiple first outlets 114 can increase the number of channels for fluid discharge, reduce the flow pressure of a single outlet, effectively avoid fluid congestion at the outlet, and improve discharge efficiency. Each first outlet 114 is provided to extend in the width direction of the filter chamber 11 to form a straight line structure, which helps to achieve uniformity of mixture dynamics, reduce eddy currents and disturbances of the fluid at the first outlet 114, help to discharge the fluid smoothly, and reduce congestion of the fluid at the outlet. Each first outlet 114 is independent and evenly distributed, which helps to achieve uniform discharge of the fluid across the entire width of the filter chamber 11 and improve discharge efficiency.

[0033] More specifically, Figure 3 As shown, there are multiple first outlets 114, and the first outlets 114 are arranged in multiple rows along the width direction of the filter chamber 11. Providing multiple first outlets 114 can increase the number of channels for fluid discharge, reduce the flow pressure of a single outlet, effectively avoid fluid congestion at the outlet, and improve discharge efficiency. The first outlets 114 are arranged along the width direction of the filter chamber 11 to form a multi-row structure. The multi-row arrangement helps to achieve uniformity of the mixture dynamics, disperse the mixture pressure, and reduce eddy currents and disturbances of the mixture at the outlet. The multi-row outlets disperse the discharged mixture, reduce the risk of clogging of a single outlet, and the outlets arranged in multiple rows can distribute the fluid more evenly, which is beneficial to gas-liquid separation, and the fluid can be more thoroughly separated from the solid waste, thereby improving the gas-liquid-solid three-phase separation efficiency.

[0034] More specifically, Figure 3As shown, the first outlet 114 is arranged in a grid shape. The first outlet 114 is designed to be grid-shaped. The outlet area of ​​the filter chamber 11 is composed of a plurality of parallel or cross-arranged strip-shaped through holes, forming a plurality of evenly distributed small outlets, which helps to improve the separation efficiency of the fluid, especially the rapid discharge of gas, and reduces the risk of blockage of a single outlet. Even if some outlets are blocked, other outlets can continue to work. The grid-shaped design enhances the strength and durability of the structure while maintaining the outlet area. The strip structure of the grid can withstand a certain amount of pressure and impact. The mixture is discharged through multiple small outlets, which can reduce noise and vibration, especially when discharged at high speed, reducing the vortex and disturbance of the mixture at the outlet, which is conducive to reducing surge phenomenon.

[0035] More specifically, Figure 3 As shown, the height of the first outlet 114 on the side wall 111 is lower than the height of the first inlet 113 on the side wall 111. The first outlet 114 and the first inlet 113 are designed to be not only oppositely distributed but also to form a height difference, so that a certain drop is generated when the mixture flows in the filter chamber 11, which helps to control the flow direction of the mixture in the filter chamber 11, so that after the sewage with solid matter flows in from the first inlet 113, it flows downward to separate the solid matter, and the fluid is discharged to the first outlet 114. The height difference helps the solid waste to settle in the filter chamber 11, while the liquid and gas are more likely to flow to the lower first outlet 114 for discharge, thereby promoting solid-liquid separation. On the other hand, the mixture flows in from a higher position and is discharged from a lower position, which reduces the disturbance of the mixture in the filter chamber 11 and helps to reduce surge.

[0036] More specifically, Figure 2 and Figure 4 As shown, the first inlet 113 is arranged at the top of the side wall 111. The first inlet 113 is designed at the top of the side wall 111 so that the mixture can directly enter the filter chamber 11 from the top and flow downward under the action of gravity, so that the bottom of the filter chamber 11 can be used for collecting and storing solid waste, which helps to form a flow of the mixture from top to bottom. This straight-line flow helps to reduce eddy currents and mixture disturbances. Solid waste can be deposited at the bottom under the action of gravity, while liquid and gas are discharged through the first outlet 114 of the filter chamber 11, thereby improving the solid-liquid separation efficiency.

[0037] More specifically, Figure 2 and Figure 3 As shown, the first outlet 114 is evenly distributed on both sides of the first inlet 113. Multiple first outlets 114 are distributed on both sides of the first inlet 113 to prevent the mixture entering the first inlet 113 from directly rushing out of the first outlet 114, which can better block solid objects, increase the structural strength of the filter chamber 11, and extend its service life.

[0038] like Figures 1 to 5 As shown, the present embodiment also discloses a cleaning device, comprising any one of the aforementioned anti-surge structures, and also comprising a floor brush assembly 2 and a main unit 3. The floor brush assembly 2 and the box body 1 of the anti-surge structure are both mounted on the main unit 3, and the anti-surge structure is detachably mounted on the main unit 3. The floor brush assembly 2 is connected to the conveying channel 12 in the box body 1, and the floor brush assembly 2 sucks the sewage with solid matter into the conveying channel 12 and performs gas-liquid-solid three-phase separation through the anti-surge structure. A filter chamber 11 is provided in the box body 1, and the conveying channel 12 connects the floor brush assembly 2 and the filter chamber 11. The sewage with solid matter passes through the conveying channel 12 to the filter chamber 11, and the filter chamber 11 separates the solid matter from the fluid through the first outlet 114. The bottom wall 112 of the filter chamber 11 cooperates with the first outlet 114 on the side wall 111 to intercept the solid matter, so that the solid matter remains in the filter chamber 1 1, effective separation of solids is achieved, and solids deposited on the bottom wall 112 will not block the first outlet 114 on the side wall 111, and will not affect the discharge of the fluid. This lateral discharge method further improves the efficiency of gas-liquid separation; the first inlet 113 and the first outlet 114 are designed to be distributed opposite to each other, and the first outlet 114 is set away from the first inlet 113, which helps to reduce the mutual disturbance between the mixture and the solids, effectively reduces the surge phenomenon, and improves the stability of the mixture treatment. The fluid is separated by lateral discharge, and the liquid is stored at the bottom of the box body 1. The bottom wall 112 of the filter cavity 11 isolates the solids from the liquid at the bottom of the box body 1 from top to bottom, and the liquid will not be disturbed due to contact with the solids. On the other hand, the first outlet 114 is set laterally away from the liquid at the bottom of the box body 1, which further reduces the surge phenomenon.

[0039] This application is not limited to the above-mentioned optimal implementation method. Anyone can derive various other forms of products based on the inspiration of this application. However, no matter what changes are made in their shape or structure, any technical solution that is the same or similar to that of this application falls within the scope of protection of this application.

Claims

1. A surge protection structure, comprising a housing (1), wherein a filter chamber (11) and a conveying channel (12) are provided in the housing (1), wherein the conveying channel (12) is communicated with the filter chamber (11), and a mixture enters the filter chamber (11) through the conveying channel (12) to separate solid matter from fluid, characterized in that: The filter chamber (11) comprises a side wall (111) and a bottom wall (112); the bottom wall (112) separates the filter chamber (11) from the bottom of the box body (1) in upper and lower parts to achieve solid-liquid separation; the side wall (111) is provided with a first inlet (113) and a first outlet (114) distributed opposite to each other; the first inlet (113) is connected to the conveying channel (12); the first outlet (114) is used to discharge the fluid from the filter chamber (11); and the bottom wall (112) is used to retain solid matter in the filter chamber (11).

2. A surge protection structure according to claim 1, characterized in that: A plurality of the first outlets (114) are provided, and the first outlets (114) are arranged in multiple layers along the height direction of the filter cavity (11).

3. The surge protection structure according to claim 1, characterized in that: A plurality of the first outlets (114) are provided, and each of the first outlets (114) extends in a straight line along the width direction of the filter cavity (11).

4. The surge protection structure according to claim 1, characterized in that: A plurality of the first outlets (114) are provided, and the first outlets (114) are arranged in multiple rows along the width direction of the filter cavity (11).

5. A surge protection structure according to claim 2, 3 or 4, characterized in that: The first outlets (114) are arranged in a grid shape.

6. The surge protection structure according to claim 1, characterized in that: The height of the first outlet (114) on the side wall (111) is lower than the height of the first inlet (113) on the side wall (111).

7. A surge protection structure according to claim 1 or 6, characterized in that: The first inlet (113) is arranged at the top of the side wall (111).

8. The surge protection structure according to claim 1, characterized in that: The first outlets (114) are evenly distributed on both sides of the first inlet (113).

9. A cleaning device, characterized in that: The invention comprises a surge protection structure as described in any one of claims 1 to 8.

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