A household textile wastewater treatment device

Abstract

The present invention discloses a household textile sewage treatment device, which relates to the technical field of sewage treatment, and comprises a main support and a support seat, wherein a filter grid is fixedly connected inside the main support, a rake tooth frame is fixedly connected between the top of the filter grid and the inner wall of the main support, and a drive chain is installed on the inner wall of the main support. When the rake teeth move between two cleaning boxes along with the drive chain, the motor drives the cross plate to reciprocate within a certain range, and the cross plate drives the push rods at both ends of the cross plate to pull the corresponding cleaning plate body to slide reciprocally along the connecting plate, and the tooth plates of the rake teeth can be alternately scrubbed and rinsed in coordination with the cleaning mesh plates and spray plates alternately arranged on the cleaning plate body, and the cleaning mesh plates and spray plates can produce a reciprocating scrubbing effect through the action of the reciprocating connection assembly, so that each surface of the tooth plate on the rake teeth can be cleaned more comprehensively.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a household textile sewage treatment device. Background Art

[0002] Wastewater treatment is the process of purifying wastewater so that it meets the water quality requirements for discharge into a water body or reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, and catering.

[0003] Wastewater from household textiles, especially wool textile processing, carries a lot of grease, soluble solids, suspended solids and other debris. When treating wool textile wastewater, it is first necessary to filter the textile wastewater through a filter grid. Large suspended particles will be intercepted on the water inlet side of the grid. In order to ensure the filtering effect of the grid, it is often necessary to use rake teeth to clean up the intercepted large suspended particles in a timely manner.

[0004] When the weather temperature is low, the viscosity of grease increases. Although the rake teeth can clean the grille, the grease attached to the grille will be transferred to the rake teeth, and when the rake teeth circulate in the sewage, a lot of grease will adhere to and solidify on their outer surfaces. When the rake teeth move to the top and flip, and rely on gravity to pour out the large suspended particles raked out, the solid particles and suspended matter in the sewage will adhere to the rake teeth due to the strong adhesion of grease, and cannot be poured out under the action of gravity. When the rake teeth enter the water inlet side of the grille through the water outlet side of the grille, the solid particles and suspended matter adhered to the rake teeth will be scattered into the filtered sewage under the impact of the flowing water body, resulting in the problem of poor filtering effect of the grille. Therefore, the present application proposes a household textile sewage treatment device to solve the above problems. Summary of the invention

[0005] The present invention provides a household textile wastewater treatment device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A household textile sewage treatment device comprises a main support and a support seat, wherein a filter grille is fixedly connected inside the main support, a rake tooth frame is fixedly connected between the top of the filter grille and the inner wall of the main support, a drive chain is installed on the inner wall of the main support, and rake teeth for cleaning the filter grille are fixedly connected to the drive chain, a driving device for driving the drive chain to rotate is installed on the main support, a conveyor belt for transmitting pollutants raked out by the rake teeth is installed on the support seat, a cleaning box is fixedly connected to the back side of the rake tooth frame and the surface of the support seat, a plurality of connecting plates are correspondingly installed on the top end and the bottom end of the inner wall of the cleaning box, the distance between two adjacent connecting plates is greater than the thickness of each tooth plate of the rake teeth, a cleaning plate mechanism is movably connected to each connecting plate, and two adjacent cleaning plate mechanisms are connected by a reciprocating connecting component to reciprocately scrub the tooth plates on the rake teeth.

[0008] The bottoms of the two cleaning boxes are provided with sewage return mechanisms.

[0009] A further improvement of the technical solution of the present invention lies in that: the cleaning plate mechanism includes a cleaning plate body movably connected to the connecting plate, and a plurality of cleaning mesh plates and spray plates are installed on the cleaning plate body. The plurality of cleaning mesh plates and spray plates are alternately distributed, and the cleaning mesh plates and spray plates on the two cleaning plate bodies connected by a reciprocating connection assembly are staggered. The spray plate is a two-sided spray structure, which can flush the tooth plates of the rake teeth located on both sides of the cleaning plate body. The cleaning mesh plate is a two-sided scrubbing structure, which can scrub the tooth plates of the rake teeth located on both sides of the cleaning plate body.

[0010] A further improvement of the technical solution of the present invention is that: the multiple spray plates on the same cleaning plate body are connected by a connecting pipe installed inside the cleaning plate body, a water inlet hose is fixedly connected to the outer surface of the connecting pipe, one end of the water inlet hose extends to the outside of the cleaning plate body, one end of the water inlet hose is fixedly connected to a main connecting pipe, and one end of the main connecting pipe extends to the outside of the cleaning box and is connected to the cleaning agent container.

[0011] A further improvement of the technical solution of the present invention is that a multi-directional spray head is fixedly connected to the outer surface of the spray plate, and the spray end of the multi-directional spray head extends to the outside of the cleaning plate body.

[0012] A further improvement of the technical solution of the present invention is that a friction mesh plate is fixedly connected to the outer surface of the cleaning plate body outside the spray plate, and the friction mesh plate and the cleaning mesh plate on the corresponding side clamp the tooth plate of the rake teeth inside, and scrub and rinse the two sides of the tooth plate alternately.

[0013] A further improvement of the technical solution of the present invention is that the reciprocating connection assembly includes a push rod movably connected to the side of the cleaning plate body, one end of the push rod is movably connected to a cross plate, a connecting rod passes through and is fixedly connected to the cross plate, both ends of the connecting rod are movably connected to the inner wall of the cleaning box, a motor is fixedly connected to the outer surface of the cleaning box, and the output shaft of the motor is fixedly connected to one end of the connecting rod.

[0014] A further improvement of the technical solution of the present invention is that a slide groove is provided on the connecting plate, the upper surface and the lower surface of the cleaning plate body are fixedly connected to limit strips, and the outer surface of the limit strip is movably connected to the inner wall of the slide groove.

[0015] A further improvement of the technical solution of the present invention is that the sewage return mechanism includes a water collecting bucket movably connected to the bottom of the cleaning box, pneumatic telescopic rods are fixedly connected to both sides of the water collecting bucket, the pneumatic telescopic rods are fixedly connected to the support seat, and a return pipe is fixedly connected to the bottom of the water collecting bucket, one end of the return pipe extends to the sewage inflow side of the filter grille, and the return pipe is fixedly connected to the outer surface of the main bracket through a fixed sleeve.

[0016] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0017] The present invention provides a household textile sewage treatment device. When the rake teeth move between two cleaning boxes along with a driving chain, the motor drives the transverse plate to reciprocate within a certain range, and the transverse plate drives the push rods located at both ends of the transverse plate to pull the corresponding cleaning plate body to slide reciprocally along the connecting plate. The tooth plates of the rake teeth can be alternately scrubbed and rinsed in coordination with the cleaning mesh plates and spray plates alternately arranged on the cleaning plate body. Through the action of the reciprocating connection component, the cleaning mesh plates and the spray plates can produce a reciprocating scrubbing effect, so that each surface of the tooth plates on the rake teeth can be cleaned more comprehensively. The cleaned sewage is recovered through a water collecting bucket, and refluxed to the sewage inflow side through a reflux pipe, and is repeatedly filtered, so that the rake teeth will not bring solid particles and suspended matter carried by solidified grease into the sewage on the outlet side, resulting in the problem of poor filtering effect at the filter grille.

[0018] The present invention provides a household textile wastewater treatment device. A plurality of cleaning mesh plates and spray plates on a single cleaning plate body are alternately arranged in order to alternately scrub and rinse a single-side tooth plate to ensure a cleaning effect. Two cleaning plate bodies are arranged opposite to each other in a group. The cleaning mesh plate on one cleaning plate body is correspondingly arranged with the spray plate on the other cleaning plate body, so that after the cleaning mesh plate scrubs the tooth plate, the cleaning mesh plate can be sprayed and rinsed by the spray plate, so that the cleaning mesh plate has a certain self-cleaning function, which ensures the subsequent cleaning effect while avoiding the problem of frequent cleaning of the cleaning mesh plate.

[0019] The present invention provides a household textile wastewater treatment device, wherein a multi-directional spray head is connected to a spray plate, and a cleaning agent is sprayed out through the multi-directional spray head. The multi-directional spray head is a prior art and can spray and flush in multiple different directions, thereby fully cleaning the gap angles on the rake teeth and improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure inside the main support of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the use process of the water collecting bucket of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the water collecting bucket of the present invention when it is not in use;

[0024] Figure 5 This is a schematic diagram of the internal structure of the cleaning box of the present invention;

[0025] Figure 6 This is a schematic diagram of the back structure of the interior of the cleaning box of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the cleaning box of the present invention;

[0027] Figure 8 It is a structural schematic diagram of two cleaning plates connected by a reciprocating connection assembly of the present invention;

[0028] Fig. 9 A schematic diagram of the distribution of the cleaning screen plates and the spray plates of two adjacent cleaning plate bodies of the present invention;

[0029] Fig.10 It is a schematic diagram of the cross-sectional structure of the cleaning plate body of the present invention;

[0030] Fig.11 For the present invention Figure 8 Schematic diagram of the enlarged structure at point A in the middle.

[0031] In the figure: 1. main bracket; 2. filter grid; 3. rake teeth; 4. drive chain; 5. drive device; 6. rake tooth frame; 7. conveyor belt; 8. support seat; 9. cleaning box; 10. connecting plate; 11. slide; 12. cleaning plate body; 13. limit strip; 14. push rod; 15. cross plate; 16. connecting rod; 17. motor; 18. cleaning mesh plate; 19. friction mesh plate; 20. spray plate; 21. multi-directional spray head; 22. connecting pipe; 23. water inlet hose; 24. main connecting pipe; 25. water collecting bucket; 26. pneumatic telescopic rod; 27. return pipe; 28. fixing sleeve. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with embodiments: Example

[0033] like Figure 1-11 As shown, the present invention provides a household textile wastewater treatment device, including a main support 1 and a support seat 8, wherein a filter grille 2 is fixedly connected to the inside of the main support 1, a rake tooth frame 6 is fixedly connected between the top of the filter grille 2 and the inner wall of the main support 1, a drive chain 4 is installed on the inner wall of the main support 1, and rake teeth 3 for cleaning the filter grille 2 are fixedly connected to the drive chain 4, a driving device 5 for driving the drive chain 4 to rotate is installed on the main support 1, and the driving device 5 is a prior art, including other related devices such as a reducer, a gear, a belt or a transmission chain, a conveyor belt 7 for transmitting pollutants raked out by the rake teeth 3 is installed on the support seat 8, and the back of the rake tooth frame 6 and the support seat A cleaning box 9 is fixedly connected to the surface of 8, and a plurality of connecting plates 10 are correspondingly installed on the top and bottom of the inner wall of the cleaning box 9. The distance between two adjacent connecting plates 10 is greater than the thickness of each tooth plate of the rake teeth 3, so that the rake teeth 3 can be moved to the cleaning box 9 through the connecting plates 10 to clean the rake teeth 3. A cleaning plate mechanism is movably connected to each connecting plate 10, and two adjacent cleaning plate mechanisms are connected by a reciprocating connecting component. The two cleaning plate mechanisms connected by the reciprocating connecting component are a group. The multiple cleaning plate mechanisms arranged on the cleaning box 9 can be divided into multiple groups, and each group of structures can produce a reciprocating scrubbing effect on the tooth plates on the rake teeth 3.

[0034] The bottoms of the two cleaning boxes 9 are provided with sewage return mechanisms.

[0035] When sewage is introduced into the device, large suspended particles carried in the sewage are first intercepted by the filter grille 2. When the intercepted pollutants are large and affect the filtering efficiency of the filter grille 2, the drive chain 4 is driven by the drive device 5 to rotate and drive the rake teeth 3 to pass through the filter grille 2. The tooth plates of the rake teeth 3 fit into the gaps of the filter grille 2. The large suspended particles intercepted at the filter grille 2 are rake out through the scraping effect of the rake teeth 3, and move upward along the filter grille 2 and the rake tooth frame 6. When the rake teeth 3 are turned over at the top of the drive chain 4 along with the drive chain 4, the large particles of pollutants raked on the rake teeth 3 fall into the conveyor belt 7 under the action of gravity. The conveyor belt 7 is a prior art that transmits the collected pollutants to Subsequent treatment process, when the temperature is low, a large amount of grease carried in the sewage will gradually condense and adhere to the outer surface of the rake teeth 3, and will adhere to more solid particles and suspended matter. Due to the strong adhesion of the solidified grease, when the rake teeth 3 are turned over, the solidified grease and adhered suspended matter will not fall off. When the rake teeth 3 move between the two cleaning boxes 9 along with the drive chain 4, the rake teeth 3 are cleaned by the cleaning plate mechanism arranged on the cleaning box 9, and the sewage generated during the cleaning process is refluxed and reprocessed by the sewage return mechanism, so that the rake teeth 3 will not bring the solid particles and suspended matter carried by the solidified grease into the sewage after filtering, resulting in the problem of poor filtering effect at the filter grille 2.

[0036] Furthermore, the cleaning plate mechanism includes a cleaning plate body 12 movably connected to the connecting plate 10, and a plurality of cleaning mesh plates 18 and a spray plate 20 are installed on the cleaning plate body 12. The cleaning mesh plate 18 is similar to a household cleaning steel wool structure, has a strong cleaning ability, and has a certain elastic deformation ability. The plurality of cleaning mesh plates 18 and the spray plate 20 on a single cleaning plate body 12 are alternately distributed in order to alternately scrub and rinse the single-sided tooth plate to ensure the cleaning effect. The cleaning mesh plates 18 and the spray plates 20 on the two cleaning plate bodies 12 connected by the reciprocating connection assembly are staggered, and the two cleaning plate bodies 12 in a group are arranged opposite to each other. The cleaning mesh plate 18 on one cleaning plate body 12 is correspondingly distributed with the spray plate 20 on the other cleaning plate body 12, so that after the cleaning mesh plate 18 scrubs the tooth plate, the cleaning mesh plate 18 can be sprayed and rinsed by the spray plate 20, so that it has a certain self-cleaning function, which ensures the subsequent cleaning effect while avoiding the need for frequent cleaning of the cleaning mesh plate 18. The cleaning effect is improved by setting the two-sided scrubbing and flushing structures of the cleaning mesh plate 18 and the spray plate 20, so that each surface of the tooth plate on the rake teeth 3 is cleaned respectively, and the cleaning effect is improved, and it is avoided that the rake teeth 3 need to be removed regularly for cleaning, and there may be a cleaning dead angle of the clamping surface, resulting in poor cleaning effect. The cleaning mesh plate 18 and the spray plate 20 on the cleaning plate body 12 in contact with both sides of the cleaning box 9 are single-sided scrubbing and flushing settings, because the tooth plate of the rake teeth 3 located at the edge only needs to be processed on one side, and when the rake teeth 3 move between the two cleaning boxes 9, the cleaning mesh plate 18 will scrub the tooth plate of the rake teeth 3, and the cleaning agent is introduced into the spray plate 20 to flush it, thereby enhancing the cleaning effect.

[0037] Furthermore, multiple spray plates 20 on the same cleaning plate body 12 are connected through a connecting pipe 22 installed inside the cleaning plate body 12. A water inlet hose 23 is fixedly connected to the outer surface of the connecting pipe 22. One end of the water inlet hose 23 extends to the outside of the cleaning plate body 12. One end of the water inlet hose 23 is fixedly connected to a main connecting pipe 24. One end of the main connecting pipe 24 extends to the outside of the cleaning box 9 and is connected to a cleaning agent container. The cleaning agent container is a prior art, including a pump, a connecting pipe and other related structures. A grease cleaner is placed in the cleaning agent container, wherein the grease cleaner is an alkaline cleaner, a fat-soluble cleaner, etc. commonly used in the prior art, and the cleaning agent container can heat the cleaning agent to enhance the cleaning ability of grease. The cleaning agent is introduced into the water inlet hose 23 connected to the side of each cleaning plate body 12 through the main connecting pipe 24, and is introduced into the connecting pipe 22 inside the cleaning plate body 12 through the water inlet hose 23. The cleaning agent is diverted to different spray plates 20 through the connecting pipe 22 to comprehensively rinse the tooth plate.

[0038] Furthermore, a multi-directional spray head 21 is fixedly connected to the outer surface of the spray plate 20, and the spray end of the multi-directional spray head 21 extends to the outside of the cleaning plate body 12. The multi-directional spray head 21 is connected to the spray plate 20, and the cleaning agent will be sprayed out through the multi-directional spray head 21. The multi-directional spray head 21 is a prior art and can spray and flush in multiple different directions, so that the gap angles on the rake teeth 3 can be fully cleaned, thereby improving the cleaning effect.

[0039] Furthermore, a friction mesh plate 19 is fixedly connected to the outside of the spray plate 20 on the outer surface of the cleaning plate body 12. The friction mesh plate 19 and the cleaning mesh plate 18 on the corresponding side clamp the tooth plate of the rake tooth 3 inside, and scrub and rinse the two sides of the tooth plate alternately. The friction mesh plate 19 is a mesh structure in the prior art, which covers the spray plate 20 inside to ensure that the spraying effect of the spray plate 20 is not affected. At the same time, it is similar to the structure of the cleaning mesh plate 18 and has a certain elastic deformation ability, which can form a tighter covering effect on the tooth plate between the cleaning mesh plate 18 and the friction mesh plate 19, thereby enhancing the friction cleaning effect on the tooth plate.

[0040] Furthermore, the reciprocating connection assembly includes a push rod 14 movably connected to the side of the cleaning plate body 12, one end of the push rod 14 is movably connected to a cross plate 15, a connecting rod 16 is passed through and fixedly connected to the cross plate 15, both ends of the connecting rod 16 are movably connected to the inner wall of the cleaning box 9, and a motor 17 is fixedly connected to the outer surface of the cleaning box 9. The motor 17 is of prior art and includes related components such as bearings and reducers. The output shaft of the motor 17 is fixedly connected to one end of the connecting rod 16, and the cross plate 15 is driven by the motor 17 to reciprocate within a certain range. The push rods 14 located at both ends of the cross plate 15 are driven by the cross plate 15 to pull the corresponding cleaning plate body 12 to slide reciprocatingly along the connecting plate 10, thereby forming a reciprocating scrubbing effect on the tooth plate, thereby enhancing the cleaning effect on the rake teeth 3.

[0041] Furthermore, a slide groove 11 is provided on the connecting plate 10, and the upper and lower surfaces of the cleaning plate body 12 are fixedly connected to a limit strip 13, and the outer surface of the limit strip 13 is movably connected to the inner wall of the slide groove 11. The movable connection between the limit strip 13 and the slide groove 11 ensures that the cleaning plate body 12 can slide back and forth along the connecting plate 10.

[0042] Furthermore, the sewage return mechanism includes a water collecting bucket 25 movably connected to the bottom of the cleaning box 9, and pneumatic telescopic rods 26 are fixedly connected to both sides of the water collecting bucket 25, and the pneumatic telescopic rods 26 are fixedly connected to the support seat 8. A return pipe 27 is fixedly connected to the bottom of the water collecting bucket 25, and one end of the return pipe 27 extends to the sewage inlet side of the filter grille 2, and the return pipe 27 is fixedly connected to the outer surface of the main bracket 1 through a fixed sleeve 28. When the rake teeth 3 have not yet moved into the cleaning box 9, the pneumatic telescopic rods 26 push the water collecting bucket 25 until one side of the water collecting bucket 25 abuts against the back side of the rake tooth frame 6. When the rake teeth 3 move into the cleaning box 9, they are cleaned, and the clean sewage flows back to the sewage inlet side through the return pipe 27, and is repeatedly filtered to avoid the problem of solid particles and suspended matter adhered to the rake teeth 3 due to grease coagulation entering the sewage on the outlet side.

[0043] The working principle of the household textile wastewater treatment device is described in detail below.

[0044] like Figure 1-11 As shown, when the temperature is low, a large amount of grease carried in the sewage will gradually condense and adhere to the outer surface of the rake teeth 3, and will adhere to more solid particles and suspended matter. Due to the strong adhesion of the solidified grease, when the rake teeth 3 are turned over, the solidified grease and the adhered suspended matter will not fall off. When the rake teeth 3 move between the two cleaning boxes 9 along the drive chain 4, the motor 17 drives the cross plate 15 to reciprocate within a certain range, and the push rods 14 located at both ends of the cross plate 15 are driven by the cross plate 15 to pull the corresponding cleaning plate body 12 to slide back and forth along the connecting plate 10. The cleaning mesh plates 18 and the spray plates 20 alternately arranged on the cleaning plate body 12 can be alternately scrubbed and rinsed. Through the action of the reciprocating connection component, the cleaning mesh plates 18 and the spray plates 20 produce a reciprocating scrubbing effect, and each surface of the tooth plates on the rake teeth 3 can be cleaned more comprehensively. The cleaned sewage is recovered through the water collecting bucket 25 and refluxed to the sewage inflow side through the reflux pipe 27, and is repeatedly filtered.

Claims

1. A household textile wastewater treatment device, comprising a main support and a support seat, wherein a filter grille is fixedly connected to the inside of the main support, a rake rack is fixedly connected between the top of the filter grille and the inner wall of the main support, a drive chain is installed on the inner wall of the main support, rake teeth for cleaning the filter grille are fixedly connected to the drive chain, a drive device for driving the drive chain to rotate is installed on the main support, and a conveyor belt for transmitting pollutants raked out by the rake teeth is installed on the support seat, characterized in that: A cleaning box is fixedly connected to the back of the rake tooth frame and the surface of the support seat, and a plurality of connecting plates are correspondingly installed at the top and bottom of the inner wall of the cleaning box, and the distance between two adjacent connecting plates is greater than the thickness of each tooth plate of the rake teeth, and a cleaning plate mechanism is movably connected to each connecting plate, and two adjacent cleaning plate mechanisms are connected by a reciprocating connecting component to reciprocately scrub the tooth plates on the rake teeth; A sewage return mechanism is provided at the bottom of the two cleaning boxes; the cleaning plate mechanism comprises a cleaning plate body movably connected to the connecting plate, and a plurality of cleaning mesh plates and spray plates are installed on the cleaning plate body, and the plurality of cleaning mesh plates and spray plates are alternately distributed, and the cleaning mesh plates and spray plates on the two cleaning plate bodies connected by the reciprocating connection assembly are staggeredly distributed, and the spray plate is a two-sided spray structure, which can rinse the tooth plates of the rake teeth on both sides of the cleaning plate body, and the cleaning mesh plate is a two-sided scrubbing structure, which can scrub the tooth plates of the rake teeth on both sides of the cleaning plate body; the plurality of spray plates on the same cleaning plate body are connected through a connecting pipe installed inside the cleaning plate body, and a water inlet hose is fixedly connected to the outer surface of the connecting pipe, and one end of the water inlet hose extends to the outside of the cleaning plate body, and one end of the water inlet hose is fixedly connected to the main connecting pipe, and the end of the main connecting pipe extending to the outside of the cleaning box is connected to the cleaning agent container; a multi-directional spray head is fixedly connected to the outer surface of the spray plate, and the spray end of the multi-directional spray head extends to the outside of the cleaning plate body; the cleaning plate body A friction mesh plate is fixedly connected to the outside of the spray plate on the outer surface of the spray plate, and the friction mesh plate and the cleaning mesh plate on the corresponding side clamp the tooth plate of the rake teeth inside, and the two sides of the tooth plate are alternately scrubbed and rinsed; the reciprocating connection assembly includes a push rod movably connected to the side of the cleaning plate body, one end of the push rod is movably connected to a cross plate, and a connecting rod is fixedly connected to the cross plate, and both ends of the connecting rod are movably connected to the inner wall of the cleaning box, and a motor is fixedly connected to the outer surface of the cleaning box, and the output shaft of the motor is fixedly connected to one end of the connecting rod; a slide groove is provided on the connecting plate, and the upper and lower surfaces of the cleaning plate body are fixedly connected to the limiting strip, and the outer surface of the limiting strip is movably connected to the inner wall of the slide groove; the sewage return mechanism includes a water collecting bucket movably connected to the bottom of the cleaning box, pneumatic telescopic rods are fixedly connected to both sides of the water collecting bucket, and the pneumatic telescopic rods are fixedly connected to the support seat, and a return pipe is fixedly connected to the bottom of the water collecting bucket, and one end of the return pipe extends to the sewage inflow side of the filter grille, and the return pipe is fixedly connected to the outer surface of the main bracket through a fixed sleeve.

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