A maintenance device for inclined screen

Abstract

The present invention discloses a maintenance device for inclined screens, comprising a horizontally arranged placement base, a screen body to be repaired is arranged above the placement base, and a support base plate with an annular structure is fixedly installed on the lower end of the placement base, and a movable universal wheel is arranged on the lower surface of the support base plate. The maintenance device for inclined screens adopts a new structural design, so that during use, the device can lift the push rod to rotate through the work of the hydraulic telescopic rod, so that the push rod drives the standing plate to move upward, so that the staff standing on it rises accordingly, which is convenient for operating the upper end of the maintenance equipment, and when in use, the lower surface of the stabilizing plate is in contact with the ground to stabilize the device, avoiding random movement during use, and at the same time, the dust and debris generated by maintenance are collected in time by using the dust collecting trough and the negative pressure fan to avoid scattering and affecting the surrounding environment.

Description

Technical Field

[0001] The invention relates to the technical field of maintenance devices, in particular to a maintenance device applied to an inclined screen. Background Art

[0002] The maintenance device is a tool or platform used to locate an object. After long-term use, the inclined screen will be rusted or its parts will be damaged. At this time, it is necessary to use a maintenance device to perform maintenance operations on it. Due to the large size of the inclined screen in large equipment, it is generally repaired by personnel standing on the maintenance platform.

[0003] In the prior art, a Chinese patent with the authorization announcement number CN214394083U discloses a split maintenance platform structure, including a first maintenance platform, a second maintenance platform, an upper clamping plate, a fastening bolt, a fixed connecting plate, a lower clamping plate, a rubber cushion, a positioning groove, a positioning pillar and a protective mesh plate. The second maintenance platform is arranged on the right side of the first maintenance platform, and a fixed connecting plate is arranged between the first maintenance platform and the second maintenance platform. The upper clamping plate is installed on the left and right sides of the upper end surface of the fixed connecting plate, and the lower clamping plate is installed on the left and right sides of the lower end surface of the fixed connecting plate. Fastening bolts are installed through the upper clamping plate and the lower clamping plate. Positioning pillars are fixed on the left and right end surfaces of the fixed connecting plate. The annular side of the positioning pillar is provided with a rubber cushion. Positioning grooves are provided inside the first maintenance platform and the second maintenance platform. This design solves the problem that the original maintenance platform cannot be assembled separately. The utility model has a reasonable structure, is easy to be assembled in combination, has a good use effect, and is highly practical...

[0004] During the use of the above-mentioned device, the device to be repaired needs to be placed on the maintenance platform, and then the staff will perform maintenance operations on the device around the platform. When the device to be repaired is high, it is inconvenient for the staff to operate the upper end of the device due to their limited height. In addition, the bottom of the above-mentioned device adopts movable rollers, which can be easily moved, but the rotation of the movable rollers makes the overall stability of the device poor, that is, it is inconvenient to fix;

[0005] Moreover, in the prior art, a Chinese patent with the authorization announcement number CN213738457U discloses a lifting and maintenance platform for loading and unloading machinery, including a maintenance platform for carrying maintenance personnel and a support assembly for driving the maintenance platform to rise and fall; the bottom of the maintenance platform is fixed to the support assembly, and a concave opening is formed on one side of the maintenance platform. The maintenance platform consists of a first maintenance area and two second maintenance areas. The first maintenance area is arranged horizontally, and the two second maintenance areas are arranged longitudinally and symmetrically on one side of the first maintenance area. The height of the second maintenance area is higher than that of the first maintenance area. Two shovel warehouses for forklift shoveling are provided on the bottom surface of the maintenance platform. The opening of the maintenance platform is closely matched with the part to be repaired of the loading and unloading machinery, maintaining a safe gap, and adjusting the height of the maintenance platform according to the height of the part to be repaired, so that the maintenance personnel can stand in different maintenance areas to repair the part to be repaired, thereby increasing the operating space and maneuvering room of the maintenance personnel...

[0006] When the above device is performing maintenance operations such as rust removal or grinding on the equipment, a large amount of dust and debris will fall from the surface of the equipment being maintained. If these debris are not collected in time, they will fly around, thereby affecting the surrounding environment. In addition, the dust and debris will be inhaled by the human body, thereby affecting the health of the staff. Summary of the invention

[0007] The purpose of the present invention is to provide a maintenance device for inclined screens to solve the problems in the above background technology that workers cannot be lifted and are difficult to fix, and dust and debris generated during grinding and maintenance are inconvenient to collect and process.

[0008] To achieve the above object, the present invention provides the following technical solution: a maintenance device for an inclined screen, comprising a horizontally arranged placement base, a screen body to be repaired is arranged above the placement base, and a support base plate with an annular structure is fixedly installed on the lower end of the placement base, and a movable universal wheel is arranged on the lower surface of the support base, and further comprising:

[0009] A standing board is arranged above the supporting bottom board, the standing board is arranged outside the placing base in an annular structure, and the upper surface of the standing board is arranged with a rubber anti-slip structure;

[0010] A push rod, the lower end of which is rotatably mounted on the four sides of the upper surface of the supporting bottom plate, and the push rod is distributed obliquely with respect to the supporting bottom plate;

[0011] A hydraulic telescopic rod, the top end of which is rotatably mounted on the lower surface of the middle position of the push rod, the bottom end of the hydraulic telescopic rod is rotatably connected to the upper surface of the supporting bottom plate, and the maximum lifting weight of the hydraulic telescopic rod is 5 tons;

[0012] A loading plate is arranged directly above the placing base, the loading plate is in a circular structure as a whole, and the upper surface of the loading plate is in contact with the lower surface of the screen body;

[0013] Friction rollers are longitudinally rotatably mounted on the left and right sides of the upper surface of the placing base, the rotation directions of the friction rollers on the left and right sides are opposite, and the outer surface of the friction roller is set to a rough rubber structure in contact with the lower surface of the loading plate;

[0014] A mounting block, rotatably mounted in the middle of the upper surface of the placement base, the upper end of the mounting block being in a square structure;

[0015] A stabilizing plate is transversely arranged at the lower end of the placing base, a lifting structure is formed between the stabilizing plate and the placing base, and a longitudinally arranged supporting foot is fixedly installed on the lower surface of the stabilizing plate;

[0016] An extrusion block is arranged on the left and right sides of the lower end of the placing base, the extrusion block is located above the stabilizing plate, and the lower surface of the extrusion block is arranged as an inclined structure;

[0017] A dust collecting groove is provided inside the placement base, two dust collecting grooves are symmetrically arranged about the longitudinal center axis of the placement base, and a filter screen is transversely arranged inside the dust collecting groove, and the side surface of the filter screen is arranged in contact with the inner wall of the dust collecting groove;

[0018] A negative pressure fan is rotatably installed inside the placement base, the wind direction of the negative pressure fan is blowing from top to bottom, and the position of the negative pressure fan corresponds to the position of the dust collecting tank in the upper and lower directions.

[0019] Preferably, a movable slider is rotatably installed on the upper end of the push rod, and the movable slider and the limiting slide groove opened on the lower surface of the standing board form a left-right sliding structure. When the push rod rotates around the upper surface of the supporting base plate, the movable slider at the upper end of the push rod slides accordingly inside the limiting slide groove, thereby ensuring smooth rotation.

[0020] Preferably, a longitudinally arranged return spring is fixedly installed between the upper surface of the stabilizing plate and the inner lower surface of the placing base, and the upper surfaces on the left and right ends of the stabilizing plate are configured as inclined structures matching the extrusion block. When a pushing device is required, the elastic action of the return spring is utilized to move the stabilizing plate upward, thereby breaking away from contact with the ground.

[0021] Preferably, a movable sleeve is fixedly installed on the upper end of the extrusion block, and a transverse transmission screw is installed transversely through the movable sleeve. The rotation of the transverse transmission screw drives the movable sleeve outside to move synchronously, so that the movable sleeve is used to extrude the stabilizing plate.

[0022] Preferably, the movable sleeve forms a left-right sliding structure with the placement base through the transverse transmission screw, and the transverse transmission screw is driven by a separate motor. When the extrusion block and the stabilizing plate are extruded, the inclined structure between the two is utilized so that the stabilizing plate can move longitudinally up and down.

[0023] Preferably, a mounting groove matching the mounting block is provided in the middle of the lower surface of the carrier plate, and the carrier plate and the mounting block form a disassembly and mounting structure through the mounting groove, and the carrier plate can be installed above the mounting block by utilizing the engagement between the mounting groove and the mounting block, thereby realizing rotation with the placement base.

[0024] Preferably, dust collecting holes are longitudinally opened and closed inside the carrier plate, and the dust collecting holes are radially evenly distributed at equal intervals, so that dust generated during maintenance can pass through the dust collecting holes in the carrier plate and enter the dust collecting trough for collection.

[0025] Preferably, a driven gear is coaxially fixedly mounted on the lower end of the mounting block, and the left and right sides of the driven gear are meshedly connected with driven gears rotatably connected to the placement base, and the driving gear drives the driven gear meshed with it to rotate synchronously when rotating.

[0026] Preferably, a transmission belt connected to the longitudinal transmission screw is provided at the lower end of the driven gear, and the transmission belt is rotatably connected to the bottom of the dust collecting trough, and the filter screen forms a lifting structure with the dust collecting trough through the longitudinal transmission screw. When the driven gear rotates, it drives the longitudinal transmission screw to rotate through the transmission belt, thereby utilizing the longitudinal transmission screw to drive the filter screen to move upward.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: the maintenance device applied to the inclined screen adopts a new structural design, so that the device can be used to lift the push rod to rotate through the work of the hydraulic telescopic rod during use, so that the push rod drives the standing board to move upward, so that the staff standing on it can rise accordingly, which is convenient for operating the upper end of the maintenance equipment, and when in use, the lower surface of the stabilizing plate is in contact with the ground to achieve a stable effect on the device, avoiding random movement during use, and at the same time using the dust collecting trough and the negative pressure fan to collect the dust and debris generated by the maintenance in time to avoid scattering and affecting the surrounding environment. The specific contents are as follows:

[0028] 1. The push rod, hydraulic telescopic rod, moving slider, limiting slide groove and friction roller are used in coordination. When the friction roller rotates, the friction between the surface and the loading plate drives the loading plate to rotate, thereby changing the direction of the maintenance equipment. The extension of the hydraulic telescopic rod makes the push rod rotate around the supporting bottom plate (while rotating, the moving slider slides inside the limiting slide groove), so that the push rod pushes the upper standing plate to move upward, driving the staff to rise synchronously, thereby facilitating maintenance operations on the upper end.

[0029] 2. The stabilizing plate, the extrusion block, the movable sleeve and the transverse transmission screw are used in coordination. The transverse transmission screw is rotated by a motor, so that the movable sleeve outside it drives the extrusion block below to move outward, and the extrusion block is used to extrude the stabilizing plate, and finally the stabilizing plate moves downward to a position in contact with the ground, thereby achieving a stabilizing effect on the entire device.

[0030] 3. The dust collecting trough, filter screen, longitudinal transmission screw and transmission belt are used in coordination. The rotation of the carrier plate drives the mounting block to rotate. At this time, the engagement between the driving gear and the driven gear is used to make the transmission belt drive the longitudinal transmission screw to rotate. The longitudinal transmission screw is used to drive the filter screen to move upward. Finally, the filter screen is moved to the top to facilitate the disposal of the filtered dust and debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the front view structure of the device of the present invention in working state;

[0032] Figure 2 This is a schematic diagram of the cross-sectional structure of the base of the present invention;

[0033] Figure 3 It is a schematic diagram of the structure of the loading plate of the present invention from a top view;

[0034] Figure 4 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0035] Figure 5 For the present invention Figure 2 The enlarged structural diagram at B in the middle;

[0036] Figure 6 This is a schematic diagram of the three-dimensional main structure of the stabilizing plate of the present invention;

[0037] Figure 7 This is a schematic diagram of the top view of the active gear structure of the present invention;

[0038] Figure 8 It is a schematic diagram of the top view structure of the filter screen of the present invention.

[0039] In the figure: 1. Placement base; 2. Screen body; 3. Support bottom plate; 301. Mobile universal wheel; 4. Standing plate; 5. Push rod; 6. Hydraulic telescopic rod; 7. Loading plate; 8. Friction roller; 9. Mounting block; 10. Stabilizing plate; 11. Extrusion block; 12. Dust collecting trough; 13. Filter; 14. Negative pressure fan; 15. Longitudinal transmission screw; 16. Moving slider; 17. Limiting slide; 18. Reset spring; 19. Movable sleeve; 20. Transverse transmission screw; 21. Dust collection hole; 22. Mounting slot; 23. Transmission belt; 24. Driven gear; 25. Driving gear. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-Figure 8 The present invention provides a technical solution: a maintenance device for an inclined screen, comprising a horizontally arranged placement base 1, a screen body 2 to be repaired is arranged above the placement base 1, and a supporting bottom plate 3 with an annular structure is fixedly installed on the lower end of the placement base 1, and a movable universal wheel 301 is arranged on the lower surface of the supporting bottom plate 3, and also comprises: a standing plate 4, which is arranged above the supporting bottom plate 3, the standing plate 4 is arranged on the outside of the placement base 1 in an annular structure, and the upper surface of the standing plate 4 is arranged with a rubber anti-slip structure; a push rod 5, the lower end of which is rotatably installed on the four sides of the upper surface of the supporting bottom plate 3, and the push rod 5 and the supporting bottom plate 3 are distributed in an inclined shape; a hydraulic telescopic rod 6, the top end is rotatably mounted on the lower surface of the middle position of the push rod 5, the bottom end of the hydraulic telescopic rod 6 is rotatably connected to the upper surface of the supporting bottom plate 3, and the maximum lifting weight of the hydraulic telescopic rod 6 is 5 tons; the loading plate 7 is arranged directly above the placing base 1, the loading plate 7 is a circular structure as a whole, and the upper surface of the loading plate 7 is in contact with the lower surface of the screen body 2; the friction roller 8 is longitudinally rotatably mounted on the left and right sides of the upper surface of the placing base 1, the friction rollers 8 on the left and right sides rotate in opposite directions, and the outer surface of the friction roller 8 is set to a rough rubber structure in contact with the lower surface of the loading plate 7; the mounting block 9 is rotatably mounted in the middle position of the upper surface of the placing base 1, and the upper end of the mounting block 9 is a square structure;

[0042] A movable slider 16 is rotatably mounted on the upper end of the push rod 5, and a left-right sliding structure is formed between the movable slider 16 and a limiting slide groove 17 provided on the lower surface of the standing plate 4. A mounting groove 22 matching the mounting block 9 is provided in the middle position of the lower surface of the loading plate 7, and the loading plate 7 forms a disassembly and installation structure with the mounting block 9 through the mounting groove 22;

[0043] When using the device, firstly, the screen body 2 that needs to be repaired is placed directly above the loading plate 7 using a lifting device (at this time, the loading plate 7 uses the mounting groove 22 opened on its lower surface to form a snap-fit ​​structure with the mounting block 9), and then the staff stands on the standing board 4 to perform maintenance operations on the screen body 2. During the maintenance process, the friction roller 8 is driven to rotate by the motor according to the change of the maintenance position, and the friction force between the outer surface of the friction roller 8 and the loading plate 7 is used to drive the loading plate 7 to rotate, so that the loading plate 7 drives the screen body 2 to change its direction. When it is necessary to perform maintenance operations on the upper end of the screen body 2, firstly, the hydraulic telescopic rod 6 is used to drive the push rod 5 to rotate around the upper surface of the supporting bottom plate 3, so that the push rod 5 lifts the standing board 4 and moves it upward, so that the standing board 4 lifts the staff, which is convenient for operating the upper end. When the push rod 5 rotates, the movable slider 16 at its top slides accordingly inside the limiting slide groove 17.

[0044] The stabilizing plate 10 is horizontally arranged at the lower end of the placing base 1, and a lifting structure is formed between the stabilizing plate 10 and the placing base 1, and the lower surface of the stabilizing plate 10 is fixedly installed with supporting feet arranged in a longitudinal direction; the extrusion block 11 is arranged on the left and right sides of the lower end of the placing base 1, and the extrusion block 11 is located above the stabilizing plate 10, and the lower surface of the extrusion block 11 is arranged as an inclined structure;

[0045] A longitudinally arranged return spring 18 is fixedly installed between the upper surface of the stabilizing plate 10 and the lower surface of the inside of the placing base 1. The upper surfaces of the left and right ends of the stabilizing plate 10 are set to be inclined structures matching the extrusion block 11. A movable sleeve 19 is fixedly installed on the upper end of the extrusion block 11, and a transverse transmission screw 20 is installed transversely through the inside of the movable sleeve 19. The movable sleeve 19 forms a left-right sliding structure with the placing base 1 through the transverse transmission screw 20, and the transverse transmission screw 20 is driven by a separate motor;

[0046] Before using the device, the movable universal wheel 301 under the supporting base plate 3 can be used to facilitate the movement of the device. After determining the use position, the motor placed inside the base 1 drives the horizontal transmission screws 20 on the left and right sides to rotate, so that the horizontal transmission screws 20 drive the movable sleeve 19 with a threaded connection through the outside to drive the extrusion block 11 at the lower end to move to both sides. At this time, the matching inclined structure between the extrusion block 11 and the stabilizing plate 10 is used to squeeze the stabilizing plate 10, so that the stabilizing plate 10 moves downward (before squeezing, the stabilizing plate 10 moves upward and breaks away from the contact with the ground under the elastic action of the reset spring 18), and finally the stabilizing plate 10 moves to a position in contact with the ground, thereby achieving a stabilizing effect on the entire device.

[0047] A dust collecting groove 12 is provided inside the placement base 1, and two dust collecting grooves 12 are symmetrically arranged about the longitudinal center axis of the placement base 1, and a filter screen 13 is arranged horizontally inside the dust collecting groove 12, and the side surface of the filter screen 13 is arranged in contact with the inner wall of the dust collecting groove 12; a negative pressure fan 14 is rotatably installed inside the placement base 1, and the wind direction of the negative pressure fan 14 is from top to bottom, and the position of the negative pressure fan 14 corresponds to the position of the dust collecting groove 12 up and down.

[0048] A dust collecting hole 21 is longitudinally penetrated and opened inside the loading plate 7, and the dust collecting holes 21 are evenly distributed radially at equal intervals. A driving gear 25 is coaxially fixedly installed at the lower end of the mounting block 9, and the left and right sides of the driving gear 25 are meshed and connected with a driven gear 24 that is rotatably connected to the placement base 1. A transmission belt 23 connected to the longitudinal transmission screw 15 is provided at the lower end of the driven gear 24, and the transmission belt 23 is rotatably connected to the bottom of the dust collecting tank 12, and the filter screen 13 forms a lifting structure with the dust collecting tank 12 through the longitudinal transmission screw 15;

[0049] When the screen body 2 is polished and maintained (for example, polishing and rust removal), the generated dust and debris pass through the dust collecting hole 21 in the carrier plate 7 under the negative pressure generated by the negative pressure fan 14 inside the base 1 and enter the dust collecting tank 12, and then are collected after being filtered by the filter 13. After the maintenance is completed, the friction roller 8 is used to drive the carrier plate 7 to rotate, so that the carrier plate 7 drives the mounting block 9 to rotate through the mounting groove 22. At this time, the driving gear 25 coaxially fixedly installed with the mounting block 9 rotates, so that the driven gear 24 meshing with the driving gear 25 drives the longitudinal transmission screw 15 to rotate through the transmission belt 23. The longitudinal transmission screw 15 drives the filter 13 outside it to move upward while rotating. When the filter 13 moves to the top, the carrier plate 7 is removed from the mounting block 9, and then the debris lifted by the filter 13 is processed for subsequent use.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A maintenance device for an inclined screen, comprising a horizontally arranged placement base (1), a screen body (2) to be repaired is arranged above the placement base (1), and a supporting base plate (3) in an annular structure is fixedly installed on the lower end of the placement base (1), and a movable universal wheel (301) is arranged on the lower surface of the supporting base plate (3), characterized in that: Also includes: A standing board (4) is arranged above the supporting base plate (3); the standing board (4) is arranged in an annular structure outside the placing base (1); and the upper surface of the standing board (4) is arranged as a rubber anti-slip structure; A push rod (5), the lower end of which is rotatably mounted on four sides of the upper surface of the supporting base plate (3), and the push rod (5) and the supporting base plate (3) are distributed in an inclined shape; A hydraulic telescopic rod (6), the top end of which is rotatably mounted on the lower surface of the middle position of the push rod (5), the bottom end of the hydraulic telescopic rod (6) is rotatably connected to the upper surface of the supporting base plate (3), and the maximum lifting weight of the hydraulic telescopic rod (6) is 5 tons; A loading plate (7) is arranged directly above the placing base (1); the loading plate (7) is in a circular structure as a whole, and the upper surface of the loading plate (7) is in contact with the lower surface of the screen body (2); Friction rollers (8) are longitudinally rotatably mounted on the left and right sides of the upper surface of the placing base (1), the rotation directions of the friction rollers (8) on the left and right sides are opposite, and the outer surface of the friction roller (8) is set to a rough rubber structure that contacts the lower surface of the loading plate (7); A mounting block (9) is rotatably mounted at a middle position on the upper surface of the placement base (1), and the upper end of the mounting block (9) is in a square structure; A stabilizing plate (10) is transversely arranged at the lower end of the placing base (1), a lifting structure is formed between the stabilizing plate (10) and the placing base (1), and longitudinally arranged supporting feet are fixedly mounted on the lower surface of the stabilizing plate (10); An extrusion block (11) is arranged on the left and right sides of the lower end of the placing base (1), the extrusion block (11) is located above the stabilizing plate (10), and the lower surface of the extrusion block (11) is arranged as an inclined structure; A dust collecting groove (12) is provided inside the placement base (1), two dust collecting grooves (12) are symmetrically arranged about the longitudinal center axis of the placement base (1), and a filter screen (13) is transversely arranged inside the dust collecting groove (12), and the side surface of the filter screen (13) is arranged in contact with the inner wall of the dust collecting groove (12); A negative pressure fan (14) is rotatably mounted inside the placement base (1), the wind direction of the negative pressure fan (14) is from top to bottom, and the position of the negative pressure fan (14) corresponds to the position of the dust collecting tank (12) in the upper and lower directions.

2. A maintenance device for an inclined screen according to claim 1, characterized in that: A movable slider (16) is rotatably mounted on the upper end of the push rod (5), and a left-right sliding structure is formed between the movable slider (16) and a limiting sliding groove (17) provided on the lower surface of the standing board (4).

3. A maintenance device for an inclined screen according to claim 1, characterized in that: A longitudinally arranged return spring (18) is fixedly installed between the upper surface of the stabilizing plate (10) and the lower surface inside the placing base (1), and the upper surfaces at the left and right ends of the stabilizing plate (10) are arranged as inclined structures matching the extrusion block (11).

4. A maintenance device for an inclined screen according to claim 3, characterized in that: A movable sleeve (19) is fixedly mounted on the upper end of the extrusion block (11), and a transverse transmission screw rod (20) is installed transversely through the interior of the movable sleeve (19).

5. A maintenance device for an inclined screen according to claim 4, characterized in that: The movable sleeve (19) forms a left-right sliding structure with the placement base (1) through the transverse transmission screw rod (20), and the transverse transmission screw rod (20) is driven by a separate motor.

6. The maintenance device for an inclined screen according to claim 1, characterized in that: A mounting groove (22) matching the mounting block (9) is provided in the middle of the lower surface of the loading plate (7), and the loading plate (7) and the mounting block (9) form a disassembly and installation structure through the mounting groove (22).

7. A maintenance device for an inclined screen according to claim 6, characterized in that: The object carrier plate (7) has dust collection holes (21) extending longitudinally therethrough, and the dust collection holes (21) are evenly distributed radially and at equal intervals.

8. The maintenance device for inclined screen according to claim 6, characterized in that: A driving gear (25) is coaxially fixedly mounted on the lower end of the mounting block (9), and the driving gear (25) is meshedly connected to the left and right sides with driven gears (24) rotatably connected to the placement base (1).

9. A maintenance device for an inclined screen according to claim 8, characterized in that: A transmission belt (23) connected to a longitudinal transmission screw (15) is provided at the lower end of the driven gear (24), and the longitudinal transmission screw (15) is rotatably connected to the top of the dust collecting tank (12), and the filter screen (13) forms a lifting structure with the dust collecting tank (12) through the longitudinal transmission screw (15).

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