Grid backwashing cleaning device

Abstract

The utility model relates to a grating backwash cleaning device, which comprises a grating frame, and a main water pipe and a scraper which are movably connected to the two sides of the grating frame, filter holes are formed in the surface of the grating frame in a penetrating manner, sliding chutes are formed in the two sides of the grating frame, and sliding blocks which are detachably connected with the main water pipe and the scraper are connected in the sliding chutes in a sliding manner; a screw rod in threaded connection with the sliding block is arranged in the sliding groove in one side of the grating frame, a power mechanism used for driving the screw rod to rotate is connected to the upper portion of the grating frame, a first pipe cavity, a partition plate and a second pipe cavity are arranged in the center of the main water pipe, and a cleaning pipe communicating with the second pipe cavity is arranged below the main water pipe; a flushing pipe communicated with the first pipe cavity is arranged on the side of the main water pipe, and one end of the scraper is attached to the surface of the grating frame and located between the cleaning pipe and the flushing pipe. According to the cleaning device, impurity particles and stains of the grating frame can be quickly cleaned, subsequent sewage is conveniently filtered again, and the impurity removal and filtration effects of the sewage are effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of gratings, in particular to a grating backwashing and cleaning device. Background Art

[0002] In sewage treatment, it is first necessary to filter the impurities in the sewage through a grating, allowing the sewage to flow through the grating for cleaning and filtering to intercept the impurity particles in the sewage. Gratings with different thicknesses of apertures can distinguish and intercept impurities of different thicknesses, so as to gradually separate and purify the impurities in the sewage. However, after a long time of filtration through the grating, the holes of the grating used for filtration will be blocked, which not only fails to effectively filter the sewage, but also affects the flow of the sewage due to the blockage of the holes, and further reduces the efficiency of subsequent sewage treatment. Therefore, after being used for a period of time, the grating needs to be dredged and drained. The conventional dredging method for the grating is to stop the sewage or remove the grating, and then carry out manual cleaning. This not only easily delays the efficiency of sewage treatment, but also the manual disassembly, installation and dredging methods are extremely prone to safety problems caused by non-standard handling by operators, affecting the effect of subsequent sewage operation treatment. Content of the Utility Model

[0003] The utility model mainly solves the technical problems existing in the prior art, and thus provides a grating backwashing and cleaning device that can effectively filter sewage, can automatically dredge and remove impurities from the grating, and is convenient for subsequent sewage treatment.

[0004] The utility model is a grating backwashing and cleaning device, which includes a grating frame, a main water pipe and a scraper movably connected to both sides of the grating frame. The surface of the grating frame is provided with filter holes, and both sides of the grating frame are provided with chutes, and a slider for detachably connecting with the main water pipe and the scraper is slidably connected inside the chutes. A power mechanism for driving the slider to lift is connected above the grating frame. The center of the main water pipe is provided with a first pipe cavity, a partition plate and a second pipe cavity, and a cleaning pipe communicated with the second pipe cavity is arranged below the main water pipe. A flushing pipe communicated with the first pipe cavity is arranged on the side of the main water pipe. Both ends of the scraper are provided with shaft columns for cooperating with the slider, and one end of the scraper is attached to the surface of the grating frame and is located between the cleaning pipe and the flushing pipe. A core shaft is connected to the center of the other end of the scraper. A torsion spring is connected between the core shaft and the shaft column.

[0005] Preferably, one end of the main water pipe is a sealed structure, and a connector for connection is provided at the other end of the main water pipe. The partition is connected inside the main water pipe and is located between the first pipe cavity and the second pipe cavity. The first pipe cavity is on the side close to the grille frame, and the diameter of the first pipe cavity is larger than that of the second pipe cavity. The main water pipe is divided into two regions, namely the first pipe cavity and the second pipe cavity, by the partition, and thus the water content and water flow rate in different regions of the main water pipe are adjusted through the different diameters of the first pipe cavity and the second pipe cavity.

[0006] Preferably, a guide plate is connected to one end of the partition where the connector is located. The guide plate is located inside the second pipe cavity and is inclined towards the first pipe cavity. A gap for communicating with the second pipe cavity is provided between the guide plate and the inner surface of the main water pipe. The port of the second pipe cavity is partially sealed by the guide plate, thereby reducing the water content and flow rate in the second pipe cavity, and guiding through the guide plate to increase the water flow rate in the first pipe cavity, so as to facilitate the external water flow to flow into the main water pipe through the connector and be divided through the first pipe cavity and the second pipe cavity, thereby reducing the water flow rate of the cleaning pipe communicated with the second pipe cavity, facilitating the cleaning pipe to comprehensively clean the grille frame, increasing the water flow rate and water volume of the flushing pipe communicated with the first pipe cavity, and facilitating the flushing pipe to scour the filter holes in the center of the grille frame.

[0007] Preferably, two or more cleaning pipes are provided and are communicated with the second pipe cavity. The flushing pipe is communicated with the first pipe cavity, and the number of flushing pipes corresponds to the number of filter holes on the same horizontal plane, so that the water flow flows into the cleaning pipe through the second pipe cavity to comprehensively clean the surface of the grille frame, while the water flow in the first pipe cavity scours the grille frame through the flushing pipe, so as to facilitate opening the filter holes by water pressure. The correspondence between the flushing pipe and the filter holes facilitates each flushing pipe to scour, penetrate and clean the corresponding filter holes on the same horizontal plane.

[0008] Preferably, the flushing pipe is of a conical structure, and the aperture of the end of the flushing pipe communicated with the main water pipe is larger than the inner diameter of the filter hole. The aperture of the end of the flushing pipe facing the filter hole is smaller than the inner diameter of the filter hole and is connected with a brush. According to Bernoulli's principle, the water pressure in the flushing pipe is increased through the conical flushing pipe, and the brush is provided to facilitate scrubbing the surface of the filter hole, so that impurities are separated from the filter hole. The brush is of a circular structure and is connected with the flushing pipe, and the center of the brush is a hollow structure.

[0009] Preferably, the slider is slidably connected to the center of the chute, and pipe seats for fixing the main water pipe or the scraper are connected to both sides of the slider. A hoop for fixing the main water pipe or the scraper is detachably connected above the pipe seat. Lock holes for screw fixation are provided on the surface of the pipe seat, so that both ends of the main water pipe or the scraper can be placed in the pipe seat, and the main water pipe and the scraper are fixed through the cooperation connection of the hoop and the pipe seat, and the hoop and the pipe seat are fixed through the threaded connection of the screw and the lock hole.

[0010] Preferably, the shaft column is installed between the pipe seat and the hoop, and a spring cavity for the core shaft to pass through is provided in the center of the shaft column. The torsion spring is located in the spring cavity and is respectively connected to the core shaft and the shaft column. The core shaft is fixedly connected to the scraper, and a plurality of sieve holes are communicated on the surface of the scraper. The shaft column is installed and fixed between the pipe seat and the hoop, and both ends of the core shaft are embedded in the center of the shaft column, and the core shaft and the shaft column are connected through the torsion spring, so that the scraper can rotate at a small angle through the torsion spring under the limit of the shaft column through the core shaft, and the scraper is made to fit the grille as much as possible through the torsion spring. The sieve holes communicated on the surface of the scraper facilitate the discharge of sewage, so that the scraper can scrape off the impurity sludge.

[0011] Preferably, a screw rod threadedly connected to the slider is provided in the chute on one side of the grille. A top plate for fixing the power mechanism is connected above the grille. The screw rod is drivingly connected to the power mechanism. Mounting holes are provided on the surface of the top plate, and the top plate is fixed through the mounting holes to fix the grille. The power mechanism drives the screw rod to rotate, and then drives the slider threadedly connected thereto to move up and down through the rotation of the screw rod. The power mechanism can be a servo motor and is drivingly connected with a reduction gearbox.

[0012] Preferably, there are two or more filter holes in the center of the grille, and guide platforms are provided on one side of the periphery of the filter holes facing the main water pipe. A filter screen is connected to one side of the surface of the filter hole facing the scraper. The setting of the guide platform facilitates the flushing and cleaning of the inside of the filter holes in the center of the grille by the cleaning pipe or the flushing pipe, effectively improving the impurity removal effect of the filter holes, and the setting of the filter screen at the other end of the filter hole facilitates improving the filtering and separation effect of the filter holes in the grille on the impurities in the sewage.

[0013] Preferably, a guide groove is provided on one side of the grille where the filter screen is located. A guide block is connected to the side of the scraper that fits the grille. The guide block is slidably arranged in the guide groove. The guide groove and the guide block are provided to guide and limit the movement of the scraper, so that the scraper can fully fit the surface of the grille, improving the effect of the scraper scraping the impurities on the surface of the grille. The scraper is of an arc structure, which is convenient for one end of the scraper to fit the filter screen and facilitates the lifting and moving of the scraper.

[0014] The beneficial effects of the present utility model are as follows: Since the two sides of the grid frame are respectively connected with a main water pipe and a scraper, and the lower part and the side part of the main water pipe are respectively communicated with a cleaning pipe and a flushing pipe, and the flushing pipe is communicated with the first pipe cavity in the main water pipe, and the cleaning pipe is communicated with the first pipe cavity in the main water pipe, the cleaning pipe and the flushing pipe can have corresponding water content and water flow velocity, so as to flush and discharge the filter holes through the flushing pipe, and clean the periphery of the filter holes through the cleaning pipe. At the same time, the flushing pipe corresponds to the filter holes at the same horizontal plane of the grid frame, so that the flushing pipe can uniformly and fully flush each filter hole in the grid frame during the lifting process, effectively removing the impurity particles in the filter holes of the grid frame, and then facilitating the re - filtration of sewage through the filter holes of the grid frame. Moreover, the main water pipe and the scraper are simultaneously connected through a slider. When the main water pipe and the connected flushing pipe are lifted and lowered, the scraper can be lifted and lowered synchronously, so that the impurities washed down by the flushing pipe just fall into the scraper. At the same time, the slider and the shaft column are detachably connected in a matching manner. A core shaft is connected to the center of the scraper, and a torsion spring is connected between the shaft column and the core shaft, so that the scraper can be attached to the surface of the grid plate on the side of the filter screen as much as possible under the action of the torsion spring, so as to ensure that the scraper completely scrapes off the attached impurities in the grid frame, enabling the grid frame to automatically remove silt and impurities, effectively ensuring the removal effect of the impurities attached to the grid frame, and facilitating the subsequent treatment of sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following - described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of a grid back - flushing and cleaning device of the present utility model;

[0017] Figure 2 It is a schematic diagram of the overall structure of a grid back - flushing and cleaning device of the present utility model in another direction;

[0018] Figure 3 It is a semi - sectional structure schematic diagram of a grid back - flushing and cleaning device of the present utility model;

[0019] Figure 4 It is a schematic diagram of the structure of a slider in a grid back - flushing and cleaning device of the present utility model;

[0020] Figure 5 It is a structural sectional view of a flushing pipe in a grid back - flushing and cleaning device of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model.

[0022] As Figures 1 to 5 shown, a grille backwashing and cleaning device includes a grille frame 1, and a main water pipe 2 and a scraper 5 movably connected to both sides of the grille frame 1. Filter holes 12 are provided through the surface of the grille frame 1. Slide grooves 11 are provided on both sides of the grille frame 1, and sliders 32 for detachably connecting to the main water pipe 2 and the scraper 5 are slidably connected inside the slide grooves 11. A power mechanism 3 for driving the sliders 32 to lift is connected above the grille frame 1. A first pipe cavity 23, a partition 21, and a second pipe cavity 24 are provided in the center of the main water pipe 2. A cleaning pipe 241 communicating with the second pipe cavity 24 is provided below the main water pipe 2. A flushing pipe 231 communicating with the first pipe cavity 23 is provided on the side of the main water pipe 2. Shaft columns 54 for cooperating with the sliders 32 are provided at both ends of the scraper 5. One end of the scraper 5 is attached to the surface of the grille frame 1 and is located between the cleaning pipe 241 and the flushing pipe 231. A core shaft 53 is connected to the center of the other end of the scraper 5. A torsion spring 56 is connected between the core shaft 53 and the shaft column 54.

[0023] One end of the main water pipe 2 is a sealed structure, and a connector 22 for connection is provided at the other end of the main water pipe 2. The partition 21 is connected inside the main water pipe 2 and is located between the first pipe cavity 23 and the second pipe cavity 24. The first pipe cavity 23 is on the side close to the grille frame 1, and the diameter of the first pipe cavity 23 is larger than that of the second pipe cavity 24. The main water pipe 21 is divided into two regions, namely the first pipe cavity 23 and the second pipe cavity 24, by the partition 21. Then, the water content and water flow velocity in different regions of the main water pipe 2 are adjusted through the different diameters of the first pipe cavity 23 and the second pipe cavity 24.

[0024] A guide plate 211 is connected to one end of the partition 21 where the connector 22 is located. The guide plate 211 is located in the second pipe cavity 24 and is inclined towards the first pipe cavity 23. A gap for communicating with the second pipe cavity 24 is provided between the guide plate 211 and the inner surface of the main water pipe 2. The port of the second pipe cavity 24 is partially sealed through the guide plate 211, thereby reducing the water content and flow velocity in the second pipe cavity 24. And through the guiding of the guide plate 211, the water flow velocity in the first pipe cavity 23 is increased, so as to facilitate the external water flow to flow into the main water pipe 2 through the connector 22 and be divided through the first pipe cavity 23 and the second pipe cavity 24. Furthermore, the water flow velocity of the cleaning pipe 241 communicating with the second pipe cavity 24 is reduced, facilitating the cleaning pipe 241 to clean the grille frame 1 comprehensively. The water flow velocity and water volume of the flushing pipe 231 communicating with the first pipe cavity 23 are increased, facilitating the flushing pipe 231 to scour the filter holes in the center of the grille frame 1.

[0025] There are more than two cleaning pipes 241 and they are connected to the second tube cavity 24. The flushing pipes 231 are connected to the first tube cavity 23, and the number of flushing pipes 231 corresponds to the number of filter holes 12 on the same horizontal plane, so that water flows into the cleaning pipes 241 through the second tube cavity 24 to comprehensively clean the surface of the grid frame 1, and the water flow in the first tube cavity 23 flushes the grid frame 1 through the flushing pipes 231, so that the filter holes 12 can be flushed open by water pressure. The flushing pipes 231 correspond to the filter holes 12, so that each flushing pipe 231 can flush, open and clean the corresponding filter holes 12 on the same horizontal plane.

[0026] The flushing pipe 231 is of a conical structure, and the aperture of the end of the flushing pipe 231 connected to the main water pipe 2 is larger than the inner diameter of the filter hole 12. The aperture of the end of the flushing pipe 231 facing the filter hole 12 is smaller than the inner diameter of the filter hole 12 and is connected to a brush 232. According to the Bernoulli principle, the flushing pipe 231 with a conical structure can increase the punching speed of the water flow in the flushing pipe 231, and the setting of the brush 232 facilitates the cleaning of the surface of the filter hole 12 to facilitate the separation of impurities from the filter hole 12. The brush 232 is of a circular structure and is connected to the flushing pipe 231, and the center of the brush 232 is a hollow structure.

[0027] The slider 32 is slidably connected in the center of the slide groove 11, and the two sides of the slider 32 are connected with a pipe seat 321 for fixing the main water pipe 2 or the scraper 5, and a clamp 323 for fixing the main water pipe 2 or the scraper 5 is detachably connected above the pipe seat 321, and a locking hole 324 for screw fixing is provided on the surface of the pipe seat 321, so that the two ends of the main water pipe 2 or the scraper 5 can be placed in the pipe seat 321, and the main water pipe 2 and the scraper 5 are fixed by the matching connection between the clamp 323 and the pipe seat 321, and the clamp 323 and the pipe seat 321 are fixed by the threaded connection between the screw and the locking hole 324.

[0028] The shaft column 54 is installed between the pipe seat 321 and the clamp 323, and a spring cavity 541 for the core shaft 53 to pass through is provided in the center of the shaft column 54, the torsion spring 56 is located in the spring cavity 541 and is connected to the core shaft 53 and the shaft column 54 respectively, the core shaft 53 is fixedly connected to the scraper 5, and a plurality of sieve holes 52 are provided on the surface of the scraper 5, so that the shaft column 54 is installed and fixed between the pipe seat 321 and the clamp 323, and the two ends of the core shaft 53 are embedded in the center of the shaft column 54, and the core shaft 53 and the shaft column 54 are connected by the torsion spring 56, so that the scraper 5 can be rotated at a small angle through the torsion spring 56 under the limitation of the shaft column 54 through the core shaft 53, and the scraper 5 can fit the grid frame 1 as much as possible through the torsion spring 56, and the sieve holes 52 connected to the surface of the scraper 5 are convenient for the discharge of sewage, so that the scraper 5 can scrape off impurities and sludge.

[0029] A screw rod 31 threadedly connected to a slider 32 is arranged in a chute 11 on one side of the grille frame 1. A top plate 4 for fixing the power mechanism 3 is connected above the grille frame 1. The screw rod 31 is in transmission connection with the power mechanism 3. Mounting holes 41 are arranged on the surface of the top plate 4, and the top plate 4 is fixed through the mounting holes 41 to fix the grille frame 1. The power mechanism 3 drives the screw rod 31 to rotate, and then the rotation of the screw rod 31 drives the slider 32 threadedly connected thereto to perform lifting activities. The power mechanism 3 can be a servo motor and is in transmission connection with a reduction gearbox.

[0030] There are two or more filter holes 12 in the center of the grille frame 1, and guide platforms 121 are arranged on one side of the periphery of the filter holes 12 facing the main water pipe 2. A filter screen 122 is connected to one side of the surface of the filter hole 12 facing the scraper 5. The arrangement of the guide platforms 121 facilitates the flushing and cleaning of the inside of the filter holes 12 in the center of the grille frame 1 by the cleaning pipe 241 or the flushing pipe 231, effectively improving the impurity removal effect of the filter holes 12. The arrangement of the filter screen 122 at the other end of the filter hole 12 facilitates improving the filtering and separation effect of the filter holes 12 in the grille frame 1 on the impurities in the sewage.

[0031] A guide groove 13 is arranged on one side of the grille frame 1 where the filter screen 122 is located. A guide block 51 is connected to one side of the scraper 5 that fits the grille frame 1. The guide block 51 is slidably arranged in the guide groove 13. The arrangement of the guide groove 13 and the guide block 51 is used to guide and limit the movement of the scraper 5, facilitating the scraper 5 to fully fit on the surface of the grille frame 1 and improving the effect of the scraper 5 scraping the impurities on the surface of the grille frame 1. The scraper 5 is of an arc-shaped structure, which is convenient for one end of the scraper 5 to fit the filter screen 122 and facilitates the lifting movement of the scraper 5.

[0032] The grille backwashing and cleaning device installs and fixes the grille frame 1 through the mounting holes 41 on the surface of the top plate 4, allowing sewage to pass through the filter screen 122 for filtration and separation when passing through the filter holes 12 on the surface of the grille frame 1, so that impurities in the sewage can be separated and filtered; when the problem of impurities adhering and accumulating on the grille frame 1 after long-term filtration and clogging the filter holes occurs, an external water pipe is connected to the main water pipe 2 through the joint 22, allowing external water to enter the main water pipe 2 and be distributed into the first pipe cavity 23 and the second pipe cavity 24, and then the filter holes 12 in the grille frame 1 are flushed through the flushing pipe 231 connected to the first pipe cavity 23, and the back surface of the grille frame 1 is cleaned through the cleaning pipe 241 connected to the second pipe cavity 24. At the same time, the impurity particles after flushing are flushed into the scraper 5 on the other side of the grille frame 1. At the same time, the power mechanism 3 drives the screw 31 to rotate, thereby driving the slider 32 threadedly connected to the center of the screw 31 to move up and down and slide, so that the main water pipe 2 and the scraper 5 connected to it cooperate with each other to perform corresponding lifting activities, allowing the flushing pipe 231 and the cleaning pipe 241 to flush and clean the whole grille frame 1; and the scraper 5 in front of the grille frame 1 removes impurities from the filter screen 122 in front of the filter holes 12 by lifting.

[0033] The beneficial effects of the present utility model are as follows: Since the two sides of the grille frame are respectively connected with a main water pipe and a scraper, and the cleaning pipe and the flushing pipe are respectively communicated with the lower part and the side part of the main water pipe, and the flushing pipe is communicated with the first pipe cavity in the main water pipe, and the cleaning pipe is communicated with the first pipe cavity in the main water pipe, the cleaning pipe and the flushing pipe can have corresponding water content and water flow velocity, so as to flush and discharge the filter holes correspondingly through the flushing pipe, clean the periphery of the filter holes through the cleaning pipe, and at the same time, the flushing pipe corresponds to the filter holes at the same horizontal plane of the grille frame, so that the flushing pipe can evenly and fully flush each filter hole in the grille frame during the lifting process, effectively removing the impurity particles in the filter holes of the grille frame, and then facilitating the re-filtration of sewage through the filter holes of the grille frame. Moreover, the main water pipe and the scraper are simultaneously connected through the slider, so that when the main water pipe and the flushing pipe connected to it are lifted, the scraper can be lifted synchronously, and the impurities washed down by the flushing pipe just fall into the scraper. At the same time, the slider and the shaft column are detachably and cooperatively connected, the center of the scraper is connected with a core shaft, and a torsion spring is connected between the shaft column and the core shaft, so that the scraper can be as close as possible to the surface of the grille plate on the side of the filter screen under the action of the torsion spring, so as to ensure that the scraper completely scrapes off the attached impurities in the grille frame, enabling the grille frame to automatically remove silt and impurities, effectively ensuring the removal effect of the impurities attached to the grille frame, and facilitating the subsequent treatment of sewage.

[0034] The above are only specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be thought of without creative work should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.

Claims

1. A grille backwash cleaning device, characterized in that: It includes a grille frame, and a main water pipe and a scraper movably connected on both sides of the grille frame, the grille frame surface is penetrated with filter holes, the grille frame is provided with slide grooves on both sides, and a slider for detachably connecting to the main water pipe and the scraper is slidably connected inside the slide groove, the grille frame is connected with a power mechanism for driving the slider to rise and fall, the main water pipe is provided with a first tube cavity, a partition and a second tube cavity in the center, and a cleaning pipe connected to the second tube cavity is provided below the main water pipe, and a flushing pipe connected to the first tube cavity is provided on the side of the main water pipe, shaft columns matched with the slider are provided at both ends of the scraper, and one end of the scraper is in contact with the surface of the grille frame and is located between the cleaning pipe and the flushing pipe, the center of the other end of the scraper is connected with a core shaft, and a torsion spring is connected between the core shaft and the shaft column.

2. A grille backwash cleaning device according to claim 1, characterized in that: One end of the main water pipe is a sealing structure, and the other end of the main water pipe is provided with a joint for connection. The partition is connected to the main water pipe and is located between the first tube cavity and the second tube cavity. The first tube cavity is close to one side of the grid frame, and the diameter of the first tube cavity is larger than the diameter of the second tube cavity.

3. A grille backwash cleaning device according to claim 2, characterized in that: The partition is located at one end of the joint and is connected to a guide plate, the guide plate is located in the second tube cavity and inclined toward the first tube cavity, and a gap for communicating with the second tube cavity is provided between the guide plate and the inner surface of the main water pipe.

4. A grille backwash cleaning device according to claim 2, characterized in that: The cleaning pipes are provided with more than two and are connected with the second tube cavity, the flushing pipes are connected with the first tube cavity, and the number of the flushing pipes corresponds to the number of the filter holes on the same horizontal plane.

5. A grille backwash cleaning device according to claim 3, characterized in that: The flushing pipe is a conical structure, and the aperture of the end of the flushing pipe connected to the main water pipe is larger than the inner diameter of the filter hole. The aperture of the end of the flushing pipe facing the filter hole is smaller than the inner diameter of the filter hole and is connected with a brush.

6. A grille backwash cleaning device according to claim 1, characterized in that: The slider is slidably connected in the center of the slide groove, and the two sides of the slider are connected with pipe seats for fixing the main water pipe or scraper. A clamp for fixing the main water pipe or scraper is detachably connected above the pipe seat, and a lock hole for screw fixing is provided on the surface of the pipe seat.

7. A grille backwash cleaning device according to claim 6, characterized in that: The shaft column is installed between the pipe seat and the clamp, and a spring cavity for the core shaft to pass through is arranged in the center of the shaft column. The torsion spring is located in the spring cavity and is respectively connected to the core shaft and the shaft column. The core shaft is fixedly connected to the scraper, and a plurality of sieve holes are arranged on the surface of the scraper.

8. A grille backwash cleaning device according to claim 1, characterized in that: A screw rod threadably connected to a slider is arranged in a slide groove on one side of the grille frame, a top plate for fixing a power mechanism is connected above the grille frame, the screw rod is transmission-connected to the power mechanism, and a mounting hole is arranged on the surface of the top plate.

9. A grille backwash cleaning device according to claim 1, characterized in that: There are more than two filter holes in the center of the grid frame, and a guide platform is arranged around the filter hole on the side facing the main water pipe, and a filter screen is connected to the side of the filter hole surface facing the scraper.

10. A grille backwash cleaning device according to claim 1, characterized in that: A guide groove is arranged on one side of the grid frame located at the filter screen, and a guide block is connected to the side of the scraper plate that is in contact with the grid frame, and the guide block is slidably arranged in the guide groove.

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