CN219586488U - Municipal drainage pavement structure - Google Patents

Abstract

The utility model discloses a municipal drainage pavement structure, which belongs to the field of pavement of roads, and comprises a pavement, wherein curb stones are arranged on two sides of the pavement, a water inlet is formed in one end, close to the pavement, of each curb stone, a drainage channel is formed in each curb stone, the drainage channels are communicated with the water inlet, and filter plates are detachably arranged on the drainage channels; the protective guard is installed at the water inlet, a vertical rod is fixedly arranged at the water inlet, the protective guard is rotationally connected to the vertical rod, and a fixing mechanism capable of fixing the protective guard is arranged on the curb. The utility model has the effect of accelerating the discharge speed of accumulated water on the road surface, thereby increasing the safety coefficient of the travel of vehicles and pedestrians and further maintaining the smoothness of urban traffic.

Description

Municipal drainage pavement structure

Technical Field

The utility model relates to the technical field of road surfaces, in particular to a municipal drainage road surface structure.

Background

At present, the purpose of road surface drainage is to require that all levels of roads and urban roads properly select the space arrangement form and structure of the road surface, timely discharge precipitation out of the road surface, prevent the accumulated water on the road surface from penetrating into the road surface, even the roadbed, and ensure the driving safety.

The existing road pavement has the advantages that the pavement and the floor tiles with the water permeable function are arranged below the pavement, the water accumulation on the pavement can permeate downwards layer by layer, the groundwater is restored, and the dryness of the pavement can be maintained while the soil humidity is maintained.

Aiming at the related technology, the inventor considers that if the water-permeable pavement is in heavy rain weather, the water-permeable pavement is slow in water seepage speed, and the drainage of accumulated water on the pavement is not facilitated, so that the trip safety coefficient of vehicles and pedestrians can be reduced, and the smoothness of urban traffic can be influenced.

Disclosure of Invention

In order to accelerate the drainage speed of accumulated water on the road surface, thereby increasing the safety coefficient of the travel of vehicles and pedestrians and further maintaining the smoothness of urban traffic, the utility model provides a municipal drainage road surface structure.

The municipal drainage pavement structure provided by the utility model adopts the following technical scheme:

the utility model provides a municipal drainage pavement structure, includes the road surface, both sides on road surface all are provided with the curbstone, the curbstone is close to the water inlet has been seted up on the one end on road surface, set up drainage channel in the curbstone, drainage channel with the water inlet is linked together, can dismantle on the drainage channel and be provided with the filter; the protective guard is installed at the water inlet, a vertical rod is fixedly arranged at the water inlet, the protective guard is rotationally connected to the vertical rod, and a fixing mechanism capable of fixing the protective guard is arranged on the curb.

By adopting the technical scheme, when the precipitation is large and the road surface permeation reaches saturation, accumulated water can appear on the road surface, and accumulated water flows into the drainage channel through the guard rail, so that the drainage of the accumulated water on the road surface can be accelerated, the safety coefficient of the traveling of vehicles and pedestrians can be increased, and the smoothness of urban traffic is maintained; the guard rail can prevent substances such as larger rubbish branches on the road surface from entering the drainage channel and can reduce pedestrians from mistakenly falling into the drainage channel, and the filter plate in the drainage channel can filter out accumulated water impurities, so that the possibility of blockage of the drainage channel can be reduced.

Preferably, the curb stone is provided with a placing groove, and the fixing mechanism comprises a fixing rod, a fixing plate and a fixing piece; the fixed rod is fixedly arranged on the inner wall of the placing groove, the fixed plate is rotationally connected with the fixed rod, and the fixed plate can be abutted to the guard rail.

By adopting the technical scheme, when the protective guard is closed, the fixing plate is abutted against the protective guard, so that the possibility that the automatic opening of the protective guard affects traffic can be reduced; when excessive rubbish is accumulated on the filter plate, the staff needs to clear up it, and at first, the staff rotates the fixed plate, rotates the fixed plate to keeping away from the rail guard, then, the staff rotates the rail guard to open the rail guard, and then the staff of being convenient for clears up the filter.

Preferably, the fixing piece is an inserting rod, the inserting rod is fixedly arranged on one side, close to the road dental stone, of the fixing plate, and a plurality of inserting grooves for inserting the inserting rod are formed in the road dental stone.

Through adopting above-mentioned technical scheme, in order to reduce the fixed plate and take place pivoted possibility under self action of gravity, after the staff rotates the fixed plate to suitable position, the staff promotes the fixed plate to being close to curb stone direction and inserts the inserted bar in the slot that corresponds, when the staff needs to rotate the fixed plate, the staff removes the fixed plate to keeping away from curb stone direction, after the inserted bar kept away from the slot, the staff rotated the fixed plate again.

Preferably, the fixed plate is rotatably provided with a rotating block, the fixed rod is sleeved with a first spring, and two ends of the first spring are respectively and fixedly arranged on the inner wall of the placing groove and the rotating block.

Through adopting above-mentioned technical scheme, when the staff stimulate the fixed plate to keeping away from the removal of way tartar direction, the commentaries on classics piece follows the removal of fixed plate and stretches first spring and remove, when the fixed plate takes place to rotate, the fixed plate rotates in changeing the piece, thereby reduce the possibility that first spring takes place to warp, when the staff rotates the fixed plate to suitable position, the inserted bar corresponds corresponding slot, at this moment, the staff unclamps the fixed plate, the fixed plate moves to being close to way tartar direction under the elasticity pulling of first spring, the fixed plate removes and drives the inserted bar and insert in the slot, under the elasticity pulling of first spring, thereby can reduce the possibility that the fixed plate horizontal direction moved.

Preferably, the inner wall of the drainage channel is provided with a sliding groove, a mounting frame is arranged in the sliding groove in a sliding manner, a sliding rail is arranged on the mounting frame, the filter plate can be connected with the sliding rail in a sliding manner, the mounting frame is provided with a limiting assembly capable of limiting the filter plate, and a driving assembly capable of driving the mounting frame to move is arranged in the drainage channel.

Through adopting above-mentioned technical scheme, after the staff opens the rail guard, the staff passes through drive assembly and drives the installation frame to road surface horizontal position, then, after the staff releases spacing effect of spacing subassembly to the filter, the staff can pull the rubbish on filter and the filter to the road surface from the water inlet to be convenient for the staff clearance rubbish etc.; after that, the staff will clean up the filter again through spacing subassembly and drive assembly place in the drainage channel to can reduce the possibility that rubbish blockked up the drainage channel.

Preferably, the driving assembly comprises a screw rod and a guide rod, two ends of the guide rod are respectively and fixedly arranged on the opposite inner walls of the sliding groove, two ends of the screw rod are respectively and rotatably arranged on the opposite inner walls of the sliding groove, the installation frame is in sliding connection with the guide rod, and the installation frame is in sliding connection with the screw rod; the road dental stone is provided with a groove, a handle is arranged in the groove, and one end of the screw rod penetrates through the groove and can be matched with the handle.

Through adopting above-mentioned technical scheme, when the staff needs to take out the filter, at first, the staff takes out the handle, establishes the handle cover on the lead screw in the recess, and then, the staff rotates the handle, and the handle rotates and can drive the lead screw and rotate, and the lead screw rotates and can drive the installing frame and slide along the lead screw under the direction of guide bar to can rise the installing frame to road surface height, and then be convenient for the staff take out the filter from drainage pipe in.

Preferably, the storage groove is formed in the mounting frame, the limiting assembly is arranged in the storage groove, the limiting assembly comprises an inserting block and a second spring, the inserting block is slidably connected to the inner wall of the storage groove, an inclined plane is arranged on the inserting block, two ends of the second spring are fixedly arranged on the inserting block and the inner wall of the storage groove, and an inserting groove for inserting the inserting block is formed in the filter plate.

Through adopting above-mentioned technical scheme, when the staff installs the filter, at first, the staff aligns the slide rail on filter and the installing frame, then promotes the filter and remove on the slide rail, at the in-process that the filter removed, the lateral wall of filter can promote the second spring of grafting piece compression through the inclined plane of grafting piece and remove to the storage tank, when the filter board gets into the slide rail completely, the grafting piece just is to the grafting groove on the filter, the grafting piece inserts the grafting inslot under the elasticity promotion of second spring to can reduce the possibility that the filter took place to remove.

Preferably, a release groove is formed in the inner wall of the storage groove, a pull rod is fixedly arranged on the plug-in block, and the pull rod slides in the release groove; a push plate and a third spring are arranged in the sliding rail, and two ends of the third spring are fixedly arranged on the inner wall of the sliding rail and the push plate respectively; the push plate is connected to the inner wall of the sliding rail in a sliding way, and the push plate can be abutted to the filter plate.

Through adopting above-mentioned technical scheme, when the staff installs the filter on the installing frame, the filter promotes the push pedal compression second day spring, and when the staff need remove the filter from the installing frame, the staff pulls the pull rod and removes in removing the groove, and the pull rod removes and can drive the grafting piece and remove, and when the grafting piece was kept away from the grafting groove, the push pedal can promote the filter under the elasticity promotion of third spring removes to be favorable to the staff to pull out the filter.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. when the precipitation is large and the road surface is saturated, accumulated water can appear on the road surface, and accumulated water can flow into the drainage channel through the guard rail, so that the drainage of the accumulated water on the road surface can be accelerated, the safety coefficient of the traveling of vehicles and pedestrians can be increased, and the smoothness of urban traffic is maintained; the guard rail can prevent substances such as larger garbage branches on the road surface from entering the drainage channel and reduce pedestrians from falling into the drainage channel by mistake, and the filter plate in the drainage channel can filter out accumulated impurities, so that the possibility of blockage of the drainage pipeline can be reduced;

2. in order to reduce the possibility of the rotation of the fixed plate under the action of self gravity, after the fixed plate is rotated to a proper position by a worker, the worker pushes the fixed plate in the direction close to the kerbstone and inserts the inserted link into the corresponding slot, when the worker needs to rotate the fixed plate, the worker moves the fixed plate in the direction far away from the kerbstone, and when the inserted link is far away from the slot, the worker rotates the fixed plate again;

3. when the staff installs the filter on the installing frame, the filter promotes the push pedal compression second day spring, when the staff need remove the filter from the installing frame, and the staff pulls the pull rod and removes in removing the groove, and the pull rod removes and can drive the grafting piece and remove, and when the grafting piece was kept away from the grafting groove, the push pedal can promote the filter removal under the elasticity promotion of third spring to be favorable to the staff to pull out the filter.

Drawings

Fig. 1 is a schematic view of the overall structure of a municipal drainage pavement structure.

Fig. 2 is a schematic view of a protruding lead screw structure in an embodiment of the utility model.

FIG. 3 is a schematic view of a protruding guard rail structure according to an embodiment of the present utility model.

Fig. 4 is an enlarged view at a in fig. 3.

FIG. 5 is a schematic view of a protruding filter plate structure in an embodiment of the utility model.

Reference numerals illustrate:

1. road surface; 2. curbstone; 3. a water inlet; 4. a drainage channel; 5. a filter plate; 6. a guard rail; 7. a vertical rod; 8. a fixing mechanism; 9. a placement groove; 10. a fixed rod; 11. a fixing plate; 12. a rod; 13. a slot; 14. a rotating block; 15. a first spring; 16. a mounting frame; 17. a slide rail; 18. a limit component; 19. a drive assembly; 20. a screw rod; 21. a guide rod; 22. a chute; 23. a handle; 24. a storage tank; 25. a plug block; 26. a second spring; 27. a plug-in groove; 28. a release groove; 29. a pull rod; 30. a push plate; 31. and a third spring.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-5.

The embodiment of the utility model discloses a municipal drainage pavement 1 structure. As shown in fig. 1 and 2, including road surface 1, road surface 1's both sides all are provided with curb stone 2, curb stone 2 is close to water inlet 3 has been seted up on road surface 1's one end, water inlet 3 extends along the horizontal direction, curb stone 2 is interior to have seted up drainage channel 4, drainage channel 4 extends along vertical direction, the interior opening of drainage channel 4 is unloaded and is connected with filter 5, filter 5 is the cuboid form, drainage channel 4 is linked together with water inlet 3, rail guard 6 is installed to water inlet 3 department, fixed welding in water inlet 3 department has montant 7, montant 7 is the cylinder form and its axial lead extends along vertical direction, upper and lower both ends fixed welding of montant 7 is in water inlet 3 upper and lower relative inner wall, rail guard 6 rotates and connects in montant 7, be provided with the fixed establishment 8 that can fix rail guard 6 on the curb stone 2.

As shown in fig. 1 and 2, when the precipitation amount is large and the pavement 1 is saturated, accumulated water can appear on the pavement 1, and the accumulated water can flow through the guard rail 6 and flow into the drainage channel 4, so that the drainage of the accumulated water on the pavement 1 can be accelerated, the safety coefficient of the traveling of vehicles and pedestrians can be increased, and the smoothness of urban traffic is maintained; meanwhile, the guard rail 6 can prevent substances such as larger garbage branches on the road surface 1 from entering the drainage channel 4 and can reduce pedestrians from falling into the drainage channel 4 by mistake; the filter plate 5 is arranged to reduce the possibility of blockage of the drain line.

As shown in fig. 3 and 4, the curb stone 2 is provided with a placing groove 9, the placing groove 9 extends along the horizontal direction, and the fixing mechanism 8 comprises a fixing rod 10, a fixing plate 11 and a fixing piece; the fixed rod 10 is in a cylindrical shape, the axial lead of the fixed rod is arranged along the horizontal direction, the right end of the fixed rod 10 is fixedly welded on the inner wall of the placing groove 9, the fixed plate 11 is rotatably connected to the peripheral side wall of the fixed rod 10, and the fixed plate 11 can be abutted against the guard rail 6; the fixing piece is an inserting rod 12, the inserting rod 12 is in a cylinder shape, the axial lead of the inserting rod 12 extends along the horizontal direction, the inserting rod 12 is fixedly welded on the side wall of the fixing plate 11, which is close to the curb stone 2, a plurality of inserting grooves 13 for inserting the inserting rod 12 are formed in the curb stone 2, the inserting grooves 13 extend along the horizontal direction, and the inserting grooves 13 are arranged around the fixing rod 10 in a circle; the fixed plate 11 is provided with the turning block 14 on being close to the one-to-one side lateral wall of way dental calculus 2 in a rotating way, and turning block 14 is the cylinder form, and its axial lead sets up along the horizontal direction, and the cover is equipped with first spring 15 on the dead lever 10, and first paralysis level sets up, and the both ends of first spring 15 left and right are fixed respectively welded in turning block 14 lateral wall and standing groove 9 inner wall.

As shown in fig. 3 and 4, in order to reduce the possibility that the fixing plate 11 rotates under the action of its own weight, when the fixing plate 11 abuts against the guard rail 6, the insertion rod 12 is inserted into the insertion slot 13; when excessive garbage is accumulated on the filter plate 5, a worker needs to clean the filter plate, firstly, the worker pulls the fixing plate 11 to move away from the curb stone 2, the fixing plate 11 moves to drive the inserted bar 12 to move leftwards, and the rotating block 14 stretches the first spring 15 to move leftwards together, when the inserted bar 12 is far away from the slot 13, the worker rotates the fixing plate 11 to be far away from the guard rail 6 and aligns the inserted bar 12 with the other slot 13, the fixing plate 11 rotates to the rotating block 14, at the moment, the worker releases the fixing plate 11, and the fixing plate 11 and the rotating block 14 move towards the direction close to the curb stone 2 under the elastic force of the first spring 15, so that the inserted bar 12 is inserted into the corresponding slot 13, the guard rail 6 is opened by the worker, and the filter plate 5 can be cleaned conveniently by the worker; after the staff cleans up the filter 5, the staff closes rail guard 6, and then, staff pulls fixed plate 11 to keeping away from curb 2 direction slip on dead lever 10, and after slot 13 was kept away from to inserted bar 12, during the staff rotated fixed plate 11 butt in rail guard 6, inserted bar 12 in slot 13 to can reduce the possibility that fixed plate 11 takes place to remove, and then reduce the possibility that influences the traffic because of rail guard 6 opens.

As shown in fig. 3 and 5, a chute 22 is formed in the inner wall of the drainage pipeline, the chute 22 extends along the vertical direction, a mounting frame 16 slides in the chute 22, the mounting frame 16 is cuboid, a sliding rail 17 is formed on the mounting frame 16, a filter plate 5 can slide and be connected with the sliding rail 17, storage grooves 24 are formed in two ends, close to one side of a protective fence 6, of the mounting frame 16, the storage grooves 24 extend along the horizontal direction, limiting components capable of limiting the filter plate 5 are arranged in the storage grooves 24, and a driving component 19 capable of driving the mounting frame 16 to move is arranged in the drainage pipeline; the driving assembly price comprises a screw rod 20 and a guide rod 21, wherein the guide rod 21 is in a cylindrical shape, the axial lead of the guide rod 21 is arranged along the vertical direction, the upper end and the lower end of the guide rod 21 are respectively fixedly welded on the upper opposite inner wall and the lower opposite inner wall of a chute 22, the upper end and the lower end of the screw rod 20 are respectively rotatably arranged on the upper opposite inner wall and the lower opposite inner wall of the chute 22, a mounting frame 16 is connected with the guide rod 21 in a sliding manner along the vertical direction, and the mounting frame 16 is connected with the screw rod 20 in a sliding manner along the vertical direction; the top of the curbstone 2 is provided with a groove, the groove extends along the vertical direction, the top end of the screw rod 20 is penetrated through the groove to be in contact with the outside, a handle 23 is arranged in the groove, and the handle 23 can be matched with the screw rod 20.

As shown in fig. 3 and 5, the limiting component 18 comprises a plugging block 25 and a second spring 26, the plugging block 25 is in a cuboid shape, one end of the plugging block 25, which is close to the filter plate 5, is provided with an inclined plane, the plugging block 25 is connected to the inner wall of the storage groove 24 in a sliding manner along the horizontal direction, the second spring 26 is arranged along the horizontal direction, the left and right ends of the second spring 26 are fixedly welded to the inner wall of the storage groove 24 and the plugging block 25, the filter plate 5 is provided with a plugging groove 27 for plugging the plugging block 25, and the plugging groove 27 extends along the horizontal direction; the inner wall of the top of the storage groove 24 is provided with a release groove 28, the release groove 28 extends along the horizontal direction, a pull rod 29 is fixedly welded on the plug-in block 25, the pull rod 29 is cuboid, and the pull rod 29 slides in the release groove 28 along the horizontal direction; the inner wall of the inner part of the slide rail 17 is provided with a push plate 30 and a third spring 31, the third spring 31 is arranged along the horizontal direction, the push plate 30 is in a cuboid shape, two ends of the third spring 31 are fixedly welded on the inner wall of the slide rail 17 and the push plate 30 respectively, the push plate 30 is slidably connected on the inner wall of the slide rail 17 along the horizontal direction, and the push plate 30 can be abutted to the filter plate 5.

As shown in fig. 3 and 5, after the staff opens the guard rail 6, firstly, the staff takes out the handle 23, sleeves the handle 23 on the screw rod 20 in the groove, rotates the handle 23, can drive the screw rod 20 to rotate, and the screw rod 20 can drive the mounting frame 16 to vertically slide upwards along the screw rod 20 under the guidance of the guide rod 21, so that the mounting frame 16 can be lifted to the height of the road surface 1; at this time, the staff pulls the pull rod 29 to move away from the filter plate 5 in the releasing groove 28, the pull rod 29 can drive the plug block 25 to move, when the plug block 25 is away from the plug groove 27, the push plate 30 can push the filter plate 5 to move under the pushing of the elastic force of the third spring 31, so that the staff can pull out the filter plate 5; when the operator cleans the filter plate 5, the operator aligns the filter plate 5 with the sliding rail 17 on the mounting frame 16, then pushes the filter plate 5 to move on the sliding rail 17, in the moving process of the filter plate 5, the side wall of the filter plate 5 pushes the plug block 25 to compress the second spring 26 to move towards the storage groove 24 through the inclined plane of the plug block 25, the side wall of the filter plate 5 pushes the push plate 30 to compress the third spring 31 to move, when the filter plate 5 completely enters the sliding rail 17, the third spring 31 is in a state, the plug block 25 faces the plug groove 27 on the filter plate 5, and the plug block 25 is pushed by the elastic force of the second spring 26 to be inserted into the plug groove 27, so that the possibility of moving the filter plate 5 can be reduced.

The implementation principle of the embodiment of the utility model is as follows: when the precipitation amount is large, accumulated water on the pavement 1 can enter the drainage pipeline through the water inlet 3 on the side wall of the curb stone 2, so that the drainage of the accumulated water on the pavement 1 can be accelerated, the safety coefficient of traveling of vehicles and pedestrians can be increased, and the smoothness of urban traffic is maintained; the filter 5 is arranged in the drainage pipeline, so that the possibility of blockage of the drainage pipeline can be reduced, when more garbage is contained on the filter 5, a worker releases the fixing function of the protective guard 6 and opens the protective guard 6, then the worker sends the filter 5 to the ground through the driving assembly 19, and then the worker releases the filter 5 from the mounting frame 16 through the limiting assembly, so that the filter 5 can be pulled out of the drainage pipeline for cleaning.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. Municipal drainage pavement structure, including road surface (1), its characterized in that: both sides of the pavement (1) are provided with curb stones (2), one end, close to the pavement (1), of each curb stone (2) is provided with a water inlet (3), a drainage channel (4) is formed in each curb stone (2), the drainage channels (4) are communicated with the water inlets (3), and filter plates (5) are detachably arranged on the drainage channels (4); the protective guard (6) is installed at the water inlet (3), a vertical rod (7) is fixedly arranged at the water inlet (3), the protective guard (6) is rotationally connected to the vertical rod (7), and a fixing mechanism (8) capable of fixing the protective guard (6) is arranged on the curb stone (2).

2. The municipal drainage pavement structure according to claim 1, wherein: a placing groove (9) is formed in the curbstone (2), and the fixing mechanism (8) comprises a fixing rod (10), a fixing plate (11) and a fixing piece; the fixing rod (10) is fixedly arranged on the inner wall of the placing groove (9), the fixing plate (11) is rotationally connected to the fixing rod (10), and the fixing plate (11) can be abutted to the guard rail (6).

3. The municipal drainage pavement structure according to claim 2, wherein: the fixing piece is an inserting rod (12), the inserting rod (12) is fixedly arranged on one side, close to the curb stone (2), of the fixing plate (11), and a plurality of inserting grooves (13) for inserting the inserting rod (12) are formed in the curb stone (2).

4. A municipal drainage pavement structure according to claim 3, wherein: the rotary block (14) is rotatably arranged on the fixed plate (11), a first spring (15) is sleeved on the fixed rod (10), and two ends of the first spring (15) are fixedly arranged on the inner wall of the placing groove (9) and the rotary block (14) respectively.

5. The municipal drainage pavement structure according to claim 1, wherein: the utility model discloses a drainage channel, including drainage channel (4), spout (22) have been seted up to drainage channel (4) inner wall, spout (22) interior slip is provided with installing frame (16), slide rail (17) have been seted up on installing frame (16), filter (5) can sliding connection in slide rail (17), be provided with on installing frame (16) and can prescribe a limit to spacing subassembly (18) of filter (5), be provided with in drainage channel (4) and can drive subassembly (19) that installing frame (16) removed.

6. The municipal drainage pavement structure according to claim 5, wherein: the driving assembly (19) comprises a screw rod (20) and a guide rod (21), two ends of the guide rod (21) are respectively and fixedly arranged on the opposite inner walls of the sliding groove (22), two ends of the screw rod (20) are respectively and rotatably arranged on the opposite inner walls of the sliding groove (22), the installation frame (16) is in sliding connection with the guide rod (21), and the installation frame (16) is in sliding connection with the screw rod (20); the curb stone (2) is provided with a groove, a handle (23) is arranged in the groove, and one end of the screw rod (20) penetrates through the groove and can be matched with the handle (23).

7. The municipal drainage pavement structure according to claim 5, wherein: the mounting frame (16) is provided with a storage groove (24), the limiting component (18) is arranged in the storage groove (24), the limiting component (18) comprises an inserting block (25) and a second spring (26), the inserting block (25) is slidably connected to the inner wall of the storage groove (24), the inserting block (25) is provided with an inclined plane, two ends of the second spring (26) are fixedly arranged on the inserting block (25) and the inner wall of the storage groove (24), and the filter plate (5) is provided with an inserting groove (27) for inserting the inserting block (25).

8. The municipal drainage pavement structure of claim 7, wherein: a release groove (28) is formed in the inner wall of the storage groove (24), a pull rod (29) is fixedly arranged on the plug-in block (25), and the pull rod (29) slides in the release groove (28); a push plate (30) and a third spring (31) are arranged in the sliding rail (17), and two ends of the third spring (31) are fixedly arranged on the inner wall of the sliding rail (17) and the push plate (30) respectively; the push plate (30) is slidably connected to the inner wall of the sliding rail (17), and the push plate (30) can be abutted to the filter plate (5).