Sand removal type filtering equipment with anti-blocking structure

Abstract

The utility model discloses desanding filtering equipment with an anti-blocking structure, which relates to the technical field of desanding filtering and comprises a filtering box, three filter screen slots are vertically distributed on the front side of the filtering box, a filter screen outer support is inserted in the filter screen slots, a filter screen is arranged on the inner side of the filter screen outer support, and the filter screen outer support is connected with the filter screen. A sealing unit is arranged on the filter screen outer support, a limiting structure for preventing the filter screen outer support from falling off is arranged on the front side face of the filter box, a cleaning mechanism is arranged in the filter box, and a cleaning structure is arranged at the bottom of the front side face of the filter box. According to the utility model, the cleaning structure is arranged at the bottom of the filter box, so that gravel in the filter box is cleaned in a centralized manner, the influence on the surrounding environment is avoided, and the filter screen is fixed in the filter box in an inserting manner, so that the filter screen is conveniently and comprehensively cleaned and quickly replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of sand removal and filtration, in particular to a sand removal type filtration device with an anti-clogging structure. Background Art

[0002] Sand removal filtering equipment generally refers to equipment that separates solid particles in a fluid. During filtering, solid particles in the fluid will accumulate on the surface of the filter, affecting the filtering speed. In severe cases, the filter will be blocked, causing the filtering equipment to be unable to continue filtering the fluid. A patent document with announcement number CN213132190U records an anti-clogging filtering device for a sand removal machine. The device arranges a brush under the filter to brush the filter, thereby effectively clearing the holes in the filter. A toggle plate is arranged on the surface of the filter to press the raw material so that the raw material passes through the filter more quickly. However, the filter of the device is fixedly connected to the inner side of the protective shell. It is difficult to replace the filter when it is damaged, and the accumulated sand and gravel are easily scattered on the ground when discharged through the sand outlet, affecting the surrounding environment.

[0003] Based on this, a sand removal filtering device with an anti-clogging structure is now provided to eliminate the disadvantages of the existing devices. Utility Model Content

[0004] The utility model aims to provide a sand removal filtering device with an anti-clogging structure to solve the problems in the background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A sand removal filtering device with an anti-clogging structure comprises a filter box, a top cover is provided on the top of the filter box, a water inlet is provided in the middle position of the top cover, a water outlet is provided on the right side of the bottom of the top cover, three filter screen slots are vertically distributed on the front side of the filter box, a filter screen outer bracket is inserted into the filter screen slot, a filter screen is provided on the inner side of the filter screen outer bracket, a sealing unit is provided on the filter screen outer bracket, a limiting structure is provided on the front side surface of the filter box to prevent the filter screen outer bracket from falling off, a cleaning mechanism for accelerating the filtration speed and preventing the filter screen from being blocked is provided in the filter box, and a cleaning structure is provided at the bottom of the front side surface of the filter box for facilitating the removal of accumulated sand and gravel in the filter box.

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In an optional scheme: the filter screen includes a low-mesh filter screen, a medium-mesh filter screen and a high-mesh filter screen. A low-mesh filter screen is provided on the inner side of the filter screen outer bracket inserted in the upper filter screen slot, a medium-mesh filter screen is provided on the inner side of the filter screen outer bracket inserted in the middle filter screen slot, and a high-mesh filter screen is provided on the inner side of the filter screen outer bracket inserted in the lower filter screen slot.

[0009] In an optional solution: the sealing unit includes a circle of sealing strips arranged on the outer support of the filter screen, and the sealing strips are located in the gap between the front end of the outer support of the filter screen and the front side wall of the filter box.

[0010] In an optional solution: the limiting structure includes fixed columns symmetrically arranged on the front end surface of the filter box above both sides of the filter screen outer bracket, and a rotating block is rotatably provided on the fixed column, and there is rotation damping between the rotating block and the fixed column.

[0011] In an optional scheme: the cleaning mechanism includes four reciprocating screws vertically distributed and rotatably arranged on the rear side of the interior of the filter box, the four reciprocating screws include a first reciprocating screw, a third reciprocating screw and two second reciprocating screws, the first reciprocating screw is located above the low-mesh filter screen, the third reciprocating screw is located below the high-mesh filter screen, and the two second reciprocating screws are respectively located between the low-mesh filter screen and the medium-mesh filter screen and between the medium-mesh filter screen and the high-mesh filter screen, four guide rods are arranged in parallel on the front side of the interior of the filter box horizontally corresponding to the positions of the first reciprocating screw, the third reciprocating screw and the two second reciprocating screws, the first reciprocating screw is provided with a first sliding plate that cooperates with the first reciprocating screw, The first sliding plate is slidably set on a guide rod horizontally corresponding to the first reciprocating screw rod, the second reciprocating screw rod is provided with a second sliding plate matched with the second reciprocating screw rod, the second sliding plate is slidably set on a guide rod horizontally corresponding to the second reciprocating screw rod, the third reciprocating screw rod is provided with a third sliding plate matched with the third reciprocating screw rod, the third sliding plate is slidably set on a guide rod horizontally corresponding to the third reciprocating screw rod, a toggle plate is provided on the lower surface of the first sliding plate, a toggle plate is provided on the lower surface of the second sliding plate, cleaning bristles are provided on the upper surface of the second sliding plate, and cleaning bristles are provided on the upper surface of the third sliding plate, and the right end of the reciprocating screw rod passes through the right side wall of the filter box and is connected to the output end of the drive assembly.

[0012] In an optional solution: the drive assembly includes a worm wheel coaxially connected to the right end of the reciprocating screw, a worm is vertically rotated on the right side surface of the filter box, the worm is meshed with the worm wheel, the top end of the worm is coaxially connected to the driven bevel gear, the top cover is provided with a drive motor, the drive motor power output shaft is coaxially connected to the driving bevel gear, and the driving bevel gear is meshed with the driven bevel gear.

[0013] The cleaning structure of claim 1, wherein the cleaning basket slot is located below the third sliding plate, the cleaning basket is slidably arranged in the cleaning basket slot, the bottom and side of the cleaning basket are provided with water filtering holes, and the cleaning basket is provided with a circle of sealing ring, the sealing ring is located at the gap between the front end of the cleaning basket and the front side wall of the filter box, the front end surface of the cleaning basket is symmetrically provided with locking boxes on the left and right sides, a telescopic block is slidably arranged in the locking box, the telescopic block and the locking box are connected by a return spring, the front end surface of the locking box is provided with a sliding groove, the sliding groove is provided with an anti-slip handle for sliding, the anti-slip handle is threadedly connected to the front end surface of the telescopic block, and fixed plates are provided on the left and right sides of the filter box at positions corresponding to the telescopic block, the fixing plate is provided with a locking port, the locking port matches the telescopic block, the end of the telescopic block close to the fixing plate is sloped close to the filter box, and the diameter of the water filtering hole is the same as the diameter of the filtering hole of the high-mesh filter.

[0014] In an optional solution: an observation window is provided on the front side of the filter box at a position corresponding to the top of the filter mesh slot.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The utility model provides a cleaning structure at the bottom of the filter box to centrally clean the gravel in the filter box to avoid affecting the surrounding environment, and the filter screen is fixed in the filter box in an inserting manner to facilitate comprehensive cleaning and rapid replacement of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the external structure of the utility model.

[0018] Figure 2 For this utility model Figure 2 A partial enlarged view of middle A.

[0019] Figure 3 It is a schematic diagram of the left side cross-sectional structure of the utility model.

[0020] Figure 4 It is a schematic diagram of the left side cross-sectional structure of the utility model in the pulled-out state.

[0021] Figure 5 For this utility model Figure 4 A partial enlarged view of B.

[0022] Figure 6 This is a schematic diagram of the distribution of the toggle pieces on the sliding plate of the utility model.

[0023] Figure 7 This is a schematic diagram of the locking box structure of the utility model.

[0024] Notes on reference numerals: 101, filter box; 102, top cover; 103, water inlet; 104, water outlet; 105, observation window; 201, filter slot; 202, filter outer bracket; 203, low mesh filter; 204, medium mesh filter; 205, high mesh filter; 206, fixing column; 207, rotating block; 208, sealing strip; 301, cleaning basket slot; 302, cleaning basket; 303, water filter hole; 304, sealing ring; 305, fixing plate; 306, locking port ; 307, telescopic block; 308, locking box; 309, reset spring; 310, sliding groove; 311, anti-slip handle; 401, guide rod; 402, first reciprocating screw; 403, second reciprocating screw; 404, third reciprocating screw; 405, worm gear; 406, worm; 407, driven bevel gear; 408, active bevel gear; 409, drive motor; 501, first sliding plate; 502, second sliding plate; 503, third sliding plate; 504, toggle piece; 505, cleaning brush bristles. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] In one embodiment, Figures 1-7 As shown, a sand removal filtering device with an anti-clogging structure includes a filter box 101, a top cover 102 is provided on the top of the filter box 101, a water inlet 103 is provided in the middle position of the top cover 102, a water outlet 104 is provided on the right side of the bottom of the top cover 102, three filter screen slots 201 are vertically distributed on the front side of the filter box 101, a filter screen outer bracket 202 is inserted into the filter screen slot 201, a filter screen is provided on the inner side of the filter screen outer bracket 202, a sealing unit is provided on the filter screen outer bracket 202, a limiting structure is provided on the front side surface of the filter box 101 to prevent the filter screen outer bracket 202 from falling off, a cleaning mechanism for accelerating the filtration speed and preventing the filter screen from being blocked is provided in the filter box 101, and a cleaning structure for facilitating the removal of accumulated sand and gravel in the filter box 101 is provided at the bottom of the front side surface of the filter box 101.

[0027] In this embodiment, the liquid to be filtered enters the filter box 101 from the top cover 102, is filtered through the filter screen to remove the gravel, and the filtered liquid is discharged from the water outlet 104. The cleaning mechanism scrapes the gravel accumulated on the surface of the filter screen to reduce the clogging effect of the accumulated gravel on the liquid and increase the filtration speed. The lower surface of the filter screen is brushed to effectively clear the holes in the filter screen. When too much gravel accumulates on the filter screen or the filter screen is damaged, the limiting structure is adjusted to pull out the filter screen outer bracket 202, and the filter screen is cleaned or replaced. The gravel accumulated on the filter screen is scraped off and falls into the cleaning mechanism and is finally cleaned out of the filter box 101.

[0028] In one embodiment, as Figure 4 shown, the filter screen includes a low-mesh filter screen 203, a medium-mesh filter screen 204, and a high-mesh filter screen 205. The inner side of the outer filter screen bracket 202 inserted into the upper filter screen slot 201 is provided with the low-mesh filter screen 203. The inner side of the outer filter screen bracket 202 inserted into the middle filter screen slot 201 is provided with the medium-mesh filter screen 204. The inner side of the outer filter screen bracket 202 inserted into the lower filter screen slot 201 is provided with the high-mesh filter screen 205, which classifies and filters the gravel in the fluid to prevent the gravel from concentrating and accumulating on one filter screen and causing blockage.

[0029] In one embodiment, as Figure 4 and Figure 5 shown, the sealing unit includes a sealing strip 208 arranged in a circle on the outer filter screen bracket 202. The sealing strip 208 is located in the gap between the front end of the outer filter screen bracket 202 and the front side wall of the filter box 101 to prevent the fluid from flowing out from the gap between the front end of the outer filter screen bracket 202 and the front side of the filter box 101.

[0030] In one embodiment, as Figure 1 and Figure 2 shown, the limiting structure includes fixing columns 206 symmetrically arranged on the front end face of the filter box 101 above both sides of the outer filter screen bracket 202. A rotating block 207 is rotatably arranged on the fixing column 206, and there is a rotational damping between the rotating block 207 and the fixing column 206. After the outer filter screen bracket 202 is inserted into the filter screen slot 201 in place, the rotating block 207 is rotated to make the rotating block 207 catch the front end face of the outer filter screen bracket 202 to prevent the outer filter screen bracket 202 from being disengaged from the filter screen slot 201. When the outer filter screen bracket 202 is taken out, the rotating block 207 is rotated away from the front end face of the outer filter screen bracket 202, and then the outer filter screen bracket 202 can be pulled out.

[0031] In one embodiment, as Figure 1 、 Figure 3 and Figure 4As shown, the cleaning mechanism includes four reciprocating screws that are vertically distributed and rotatably arranged on the rear side of the filter box 101. The four reciprocating screws include a first reciprocating screw 402, a third reciprocating screw 404 and two second reciprocating screws 403. The first reciprocating screw 402 is located above the low-mesh filter 203, the third reciprocating screw 404 is located below the high-mesh filter 205, and the two second reciprocating screws 403 are respectively located between the low-mesh filter 203 and the medium-mesh filter 204 and between the medium-mesh filter 204 and the high-mesh filter Between the filter screens 205, four guide rods 401 are arranged in parallel at the front side of the filter box 101 at the positions corresponding to the first reciprocating screw rod 402, the third reciprocating screw rod 404 and the two second reciprocating screw rods 403, the first reciprocating screw rod 402 is provided with a first sliding plate 501 matched with the first reciprocating screw rod 402, the first sliding plate 501 is slidably arranged on the guide rod 401 corresponding to the level of the first reciprocating screw rod 402, and the second reciprocating screw rod 403 is provided with a second sliding plate matched with the second reciprocating screw rod 403 502, the second sliding plate 502 is slidably arranged on the guide rod 401 corresponding to the level of the second reciprocating screw rod 403, the third reciprocating screw rod 404 is provided with a third sliding plate 503 matched with the third reciprocating screw rod 404, the third sliding plate 503 is slidably arranged on the guide rod 401 corresponding to the level of the third reciprocating screw rod 404, the lower surface of the first sliding plate 501 is provided with a toggle piece 504, the lower surface of the second sliding plate 502 is provided with a toggle piece 504, the upper surface of the second sliding plate 502 is provided with a cleaning brush 505, the first A cleaning brush 505 is provided on the upper surface of the three sliding plates 503, and the right end of the reciprocating screw penetrates the right side wall of the filter box 101 and is connected to the output end of the driving component. The driving component drives the reciprocating screw to rotate, and the reciprocating screw drives the sliding plate to slide back and forth on the guide rod 401. The toggle piece 504 on the sliding plate scrapes the deposits on the upper surface of the filter net to reduce the clogging effect of the accumulated gravel on the liquid and increase the filtration speed. The cleaning brush 505 on the sliding plate brushes the lower surface of the filter net to dredge the holes of the filter net to prevent clogging.

[0032] In one embodiment, Figure 1 and Figure 3 As shown, the drive assembly includes a worm wheel 405 coaxially connected to the right end of the reciprocating screw, a worm 406 is vertically rotatably provided on the right side surface of the filter box 101, the worm 406 is meshed with the worm wheel 405, the top of the worm 406 is coaxially connected to the driven bevel gear 407, a drive motor 409 is provided on the top cover 102, the power output shaft of the drive motor 409 is coaxially connected to the active bevel gear 408, the active bevel gear 408 is meshed with the driven bevel gear 407, the drive motor 409 drives the worm 406 to rotate through the active bevel gear 408 and the driven bevel gear 407, the worm 406 drives the worm wheel 405 to rotate, and the worm wheel 405 drives the reciprocating screw to rotate.

[0033] In one embodiment,Figure 4 , Figure 5 and Figure 7 As shown in Figure 4 , Figure 5 and Figure 7 , the cleaning structure includes a cleaning basket slot 301 provided at the lower part of the filtering box 101. The cleaning basket slot 301 is located below the third sliding plate 503. A cleaning basket 302 is slidably provided in the cleaning basket slot 301. Filtering holes 303 are provided at the bottom and side surfaces of the cleaning basket 302. A sealing ring 304 is provided on the cleaning basket 302. The sealing ring 304 is located at the gap between the front end of the cleaning basket 302 and the front side wall of the filtering box 101. Locking boxes 308 are symmetrically provided on the left and right sides of the front end face of the cleaning basket 302. A telescopic block 307 is slidably provided in the locking box 308. The telescopic block 307 and the locking box 308 are connected by a return spring 309. A sliding groove 310 is provided on the front end face of the locking box 308. An anti-slip handle 311 is slidably provided in the sliding groove 310. The anti-slip handle 311 is threadedly connected to the front end face of the telescopic block 307. Fixing plates 305 are provided on the left and right side surfaces of the filtering box 101 at positions corresponding to the telescopic blocks 307. Locking ports 306 are provided on the fixing plates 305. The locking ports 306 are matched with the telescopic blocks 307. The end of the telescopic block 307 close to the fixing plate 305 is sloped on one side close to the filtering box 101. The diameter of the filtering holes 303 is the same as the diameter of the filtering holes of the high-mesh filter screen 205. During filtration, the fluid passes through the low-mesh filter screen 203, the medium-mesh filter screen 204 and the high-mesh filter screen 205, and the sand content in the filtered fluid has reached the standard. The filtered fluid passes through the cleaning basket 302 and is discharged through the water outlet 104 at the bottom of the filtering box 101. When cleaning the sand accumulated on the filter screen in the filtering box 101, first pull out the outer brackets 202 of the three filter screens. Blocked by the front side wall of the filtering box 101, the sand accumulated on the filter screen falls into the cleaning basket 302. Hold the two anti-slip handles 311 and make them approach each other. At this time, the telescopic block 307 disengages from the fixing plate 305, and the cleaning basket 302 can be pulled out from the cleaning basket slot 301 to complete the centralized treatment of the sand accumulated in the filtering box 101. After pouring out the sand in the cleaning basket 302, insert it back into the cleaning basket slot 301. After the telescopic block 307 contacts the fixing plate 305, it retracts into the locking box 308. After the cleaning basket 302 is inserted in place, under the action of the return spring 309, the telescopic block 307 pops out again and is stuck in the locking port 306 to complete the locking.

[0034] In one embodiment, as Figure 1 shown, an observation window 105 is provided on the front side surface of the filtering box 101 at a position corresponding to the upper part of the filter screen slot 201, which is convenient for observing the accumulation of sand on the filter screen.

[0035] The above embodiment discloses a sand removal filter device with an anti-clogging structure, wherein the liquid to be filtered enters the filter box 101 from the top cover 102, and the sand in the fluid is graded and filtered through the low-mesh filter screen 203, the medium-mesh filter screen 204 and the high-mesh filter screen 205 to prevent the sand from accumulating on one filter screen and causing blockage. The filtered fluid passes through the cleaning basket 302 and is discharged from the water outlet 104 at the bottom of the filter box 101. During filtering, the driving motor 409 drives the driving bevel gear 408 and The driven bevel gear 407 drives the worm 406 to rotate, the worm 406 drives the worm wheel 405 to rotate, the worm wheel 405 drives the reciprocating screw to rotate, the reciprocating screw drives the sliding plate to slide back and forth on the guide rod 401, the toggle piece 504 on the sliding plate scrapes the deposits on the surface of the filter screen to reduce the clogging effect of the accumulated gravel on the liquid and increase the filtering speed, the cleaning bristles 505 on the sliding plate brush the lower surface of the filter screen to dredge the holes of the filter screen to prevent clogging, and the filter screen in the filter box 101 is cleaned. When the accumulated sand and gravel are removed, the rotating block 207 is rotated to make it leave the front end surface of the filter screen outer bracket 202, and the filter screen outer bracket 202 is pulled out, and the sand and gravel accumulated on the filter screen falls into the cleaning basket 302. The two anti-slip handles 311 are grasped to make them close to each other, and the telescopic block 307 is separated from the fixing plate 305, and the cleaning basket 302 can be pulled out from the cleaning basket slot 301, so as to realize the centralized treatment of the accumulated sand and gravel in the filter box 101. After the filter screen and the cleaning basket 302 are cleaned, the cleaning basket 302 is reinserted into the cleaning basket 302. In the cleaning basket slot 301, the telescopic block 307 contacts the fixed plate 305 and retracts into the locking box 308. After the cleaning basket 302 is inserted into place, under the action of the reset spring 309, the telescopic block 307 pops out again and is stuck in the locking port 306 to complete the locking. The outer filter bracket 202 is inserted into the filter slot 201. After the outer filter bracket 202 is in place, the rotating block 207 is rotated so that the rotating block 207 is stuck on the front end surface of the outer filter bracket 202 to prevent the outer filter bracket 202 from falling out of the filter slot 201.

[0036] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A sand-removing filtration device with an anti-blocking structure, comprising a filtration tank (101), a top cover (102) is provided at the top of the filtration tank (101), a water inlet (103) is provided at the middle position of the top cover (102), and a water outlet (104) is provided on the right side of the bottom of the top cover (102); It is characterized in that Three filter screen slots (201) are vertically distributed on the front side of the filtration tank (101), a filter screen outer bracket (202) is inserted into the filter screen slot (201), a filter screen is provided inside the filter screen outer bracket (202), a sealing unit is provided on the filter screen outer bracket (202), and a limiting structure for preventing the filter screen outer bracket (202) from falling off is provided on the front side of the filtration tank (101). A cleaning mechanism for accelerating the filtration speed and preventing the filter screen from being blocked is provided inside the filtration tank (101), and a cleaning structure for facilitating the removal of accumulated gravel in the filtration tank (101) is provided at the bottom of the front side of the filtration tank (101).

2. The sand-removing filtration device with an anti-blocking structure according to claim 1, characterized in that, The filter screen includes a low-mesh filter screen (203), a medium-mesh filter screen (204) and a high-mesh filter screen (205). The low-mesh filter screen (203) is provided on the inner side of the filter screen outer bracket (202) inserted into the upper filter screen slot (201), and the medium-mesh filter screen (204) is provided on the inner side of the filter screen outer bracket (202) inserted into the middle filter screen slot (201). The high-mesh filter screen (205) is provided on the inner side of the filter screen outer bracket (202) inserted into the lower filter screen slot (201).

3. The sand-removing filtration device with an anti-clogging structure according to claim 1, characterized in that, The sealing unit includes a ring of sealing strips (208) provided on the filter screen outer bracket (202), and the sealing strips (208) are located in the gap between the front end of the filter screen outer bracket (202) and the front side wall of the filtration tank (101).

4. A sand-removing filtration device with an anti-clogging structure according to claim 1, characterized in that, The limiting structure includes fixing columns (206) symmetrically provided on the front end face of the filtration tank (101) above both sides of the filter screen outer bracket (202). Rotating blocks (207) are rotatably provided on the fixing columns (206), and there is a rotational damping between the rotating blocks (207) and the fixing columns (206).

5. The sand-removing filtration device with an anti-clogging structure according to claim 2, wherein, The cleaning mechanism comprises four reciprocating screws which are vertically distributed and rotatably arranged at the rear side of the filter box (101), the four reciprocating screws comprising a first reciprocating screw (402), a third reciprocating screw (404) and two second reciprocating screws (403), the first reciprocating screw (402) being located above the low-mesh filter screen (203), the third reciprocating screw (404) being located below the high-mesh filter screen (205), and the two second reciprocating screws (403) being located respectively above the low-mesh filter screen (203). 3) and the medium mesh filter (204) and between the medium mesh filter (204) and the high mesh filter (205), four guide rods (401) are arranged in parallel at the front side of the interior of the filter box (101) at the same level as the positions of the first reciprocating screw rod (402), the third reciprocating screw rod (404) and the two second reciprocating screw rods (403), the first reciprocating screw rod (402) is provided with a first sliding plate (501) matched with the first reciprocating screw rod (402), and the first sliding plate (501) The first reciprocating screw rod (402) is slidably arranged on a guide rod (401) corresponding to the level of the first reciprocating screw rod (402); the second reciprocating screw rod (403) is provided with a second sliding plate (502) matched with the second reciprocating screw rod (403); the second sliding plate (502) is slidably arranged on the guide rod (401) corresponding to the level of the second reciprocating screw rod (403); the third reciprocating screw rod (404) is provided with a third sliding plate (503) matched with the third reciprocating screw rod (404); the third sliding plate (50 3) Slidingly arranged on a guide rod (401) horizontally corresponding to the third reciprocating screw rod (404), a toggle plate (504) is provided on the lower surface of the first sliding plate (501), a toggle plate (504) is provided on the lower surface of the second sliding plate (502), a cleaning bristle (505) is provided on the upper surface of the second sliding plate (502), and a cleaning bristle (505) is provided on the upper surface of the third sliding plate (503), and the right end of the reciprocating screw rod passes through the right side wall of the filter box (101) and is connected to the output end of the drive component.

6. The sand removal type filtering device with an anti-blocking structure according to claim 5, characterized in that, The driving assembly comprises a worm wheel (405) coaxially connected to the right end of the reciprocating screw, a worm (406) is vertically rotatably provided on the right side surface of the filter box (101), the worm (406) is meshed with the worm wheel (405), the top end of the worm (406) is coaxially connected to a driven bevel gear (407), a driving motor (409) is provided on the top cover (102), the power output shaft of the driving motor (409) is coaxially connected to a driving bevel gear (408), and the driving bevel gear (408) is meshed with the driven bevel gear (407).

7. A sand removal type filtering device with an anti-blocking structure according to claim 5, characterized in that The cleaning structure includes a cleaning basket slot (301) provided at the lower part of the filter box (101). The cleaning basket slot (301) is located below the third sliding plate (503). A cleaning basket (302) is slidably arranged in the cleaning basket slot (301). Water filtering holes (303) are provided at the bottom and side surfaces of the cleaning basket (302). A sealing ring (304) is provided on the cleaning basket (302). The sealing ring (304) is located at the gap between the front end of the cleaning basket (302) and the front side wall of the filter box (101). Locking boxes (308) are symmetrically arranged on the left and right sides of the front end face of the cleaning basket (302). A telescopic block (307) is slidably arranged in the locking box (308). The telescopic block (307) and the locking box (308) are connected by a return spring (309). A sliding groove (310) is provided on the front end face of the locking box (308). An anti-slip handle (311) is slidably arranged in the sliding groove (310). The anti-slip handle (311) is threadedly connected to the front end face of the telescopic block (307). Fixing plates (305) are provided on the left and right side surfaces of the filter box (101) at positions corresponding to the telescopic blocks (307). Locking ports (306) are provided on the fixing plates (305). The locking ports (306) are matched with the telescopic blocks (307). The end of the telescopic block (307) close to the fixing plate (305) and close to one side of the filter box (101) is in a slope shape. The diameter of the water filtering holes (303) is the same as the diameter of the filtering holes of the high-mesh filter screen (205).

8. A sand-removing filtration device with an anti-clogging structure according to claim 1, characterized in that, An observation window (105) is provided on the front side face of the filter box (101) at a position corresponding to the upper part of the filter screen slot (201).

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