CN216041639U

CN216041639U - Town road drainage device

Info

Publication number: CN216041639U
Application number: CN202122698200.7U
Authority: CN
Inventors: 孙艳玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-03-15
Anticipated expiration: 2031-11-05

Abstract

The utility model relates to the field of municipal drainage, and discloses a municipal road drainage device which comprises a drainage well, wherein a well cover is arranged at the upper end of the drainage well, a fixing device is arranged between the well cover and the drainage well, a plurality of water inlets are formed in the well cover, a filtering device is arranged at the lower end of each water inlet, a drainage pipeline is connected to the middle of the outer side of the drainage well, a sludge discharge device is arranged at the bottom of the drainage well, the upper end of the drainage well is open, a first supporting frame is fixedly connected to the inner side wall of the upper end opening of the drainage well, the first supporting frame and the well cover are arranged in a matched mode, and grooves are formed in two sides of the well cover. The utility model can effectively solve the problem that the well cover of the existing municipal drainage device is easy to steal, and meanwhile, the well cover in the device is easy to detach and install.

Description

Town road drainage device

Technical Field

The utility model relates to the field of municipal drainage, in particular to a municipal road drainage device.

Background

The urban drainage system is an engineering facility system for treating and removing urban sewage and rainwater, and is a component of urban public facilities. Urban drainage system planning is an integral part of urban overall planning. Municipal drainage systems are usually composed of drainage pipelines and sewage treatment plants. Under the condition of separating sewage and rainwater, the sewage is collected by a drainage pipeline, and is discharged into a water body or recycled after being sent to sewage treatment; the rainwater runoff is collected by a drainage pipeline and then is discharged into the water body nearby. The urban drainage system is designed to smoothly discharge sewage and rainwater in the whole city, so that the sewage is treated well and the requirement of environmental protection is met. The main contents of the plan include: estimating the urban water discharge, selecting a water discharge system, designing a drainage pipeline, determining a sewage treatment method, determining the position of an urban sewage treatment plant and the like. The drainage system is an important infrastructure of a modern city, and how to economically and technically optimize and reconstruct the drainage system of the city is an important research subject. How to reasonably design the urban drainage system under various specified technical conditions is an important subject in planning and designing, and therefore, China has come up with an urban drainage permission management method and aims to solve the problems.

Drainage well is one of the common facility of modern urban drainage system, fall into in the drainage well in order to make things convenient for the pedestrian, can install the well lid in drainage well's upper end, current drainage well lid generally all is the upper end of direct lid at drainage well, the risk of being stolen is higher, if adopt other modes to fix the well lid, the inconvenient dismantlement of well lid of surviving again, the inconvenient problem of overhauing inside the drainage well, furthermore, more mud can often be piled up to current drainage well bottom, the inconvenient mud to drainage well bottom of current is cleared up, not only arrive drainage well's pipe blockage easily, and the peculiar smell is heavier, for this reason, we propose a town road drainage device.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a municipal road drainage device which can effectively solve the problem that sludge accumulated at the bottom of the existing municipal drainage device in the background art is inconvenient to clean, and meanwhile, the device also solves the problems that the connection and the disassembly between a well cover and a drainage well in the existing drainage well are inconvenient and easy to steal.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a town road drainage device, includes the drainage shaft, the upper end of drainage shaft is provided with the well lid, be provided with fixing device between well lid and the drainage shaft, many water inlets have been seted up on the well lid, the lower extreme of water inlet is provided with filter equipment, the outside middle part of drainage shaft is connected with drainage pipe, the bottom of drainage shaft is provided with row mud device.

Preferably, the upper end opening of the drainage well, the first support frame of fixedly connected with on the upper end opening inside wall of drainage well, mutually support the setting between first support frame and the well lid, the both sides of well lid are seted up flutedly.

Preferably, fixing device includes the mounting groove, the both sides at the well lid upper surface are seted up to the mounting groove, the inner wall fixed mounting of mounting groove has the bearing frame, it is connected with first threaded rod to rotate through the bearing in the bearing frame, threaded connection has the inserted bar on the tip of first threaded rod, the inserted bar is the cuboid structure, sliding connection between inserted bar and the well lid, the jack has all been seted up on the upper end both sides inner wall of drainage well, mutually support between inserted bar and the jack and set up.

Preferably, the first threaded rod is fixedly connected with a driven bevel gear, the upper end of the driven bevel gear is meshed with a driving bevel gear, the middle of the upper end of the driving bevel gear is fixedly connected with a driving rod, the inner wall of the mounting groove is fixedly connected with a supporting plate, and the supporting plate is rotatably connected with the driving rod through a bearing.

Preferably, the upper surface of mounting groove is provided with the apron, the one end of apron is articulated with the mounting groove, equal fixedly connected with connecting plate on the other end upper surface of apron and the upper surface of well lid, the lockhole has been seted up on the connecting plate.

Preferably, filter equipment includes the box body filter cartridge, the filter cartridge sets up the lower extreme at the well lid, through a plurality of bolt fixed connection between filter cartridge and the well lid.

Preferably, an opening is formed in the bottom surface of the filter box, a second supporting frame is fixedly connected to the inner wall of the opening of the filter box, a filter frame is arranged on the second supporting frame, and a filter screen is fixedly connected to the inner side of the filter frame.

Preferably, the filter frame's both sides have all been seted up the spout, sliding connection has the slider in the spout, be provided with reset spring in the spout, reset spring's one end and the outer wall fixed connection of slider, reset spring's the other end and the inner wall fixed connection of spout, reset spring's one end fixedly connected with dead lever is kept away from to the slider, the fixed orifices has been seted up on the opening inner wall of filter cartridge, the setting of mutually supporting between fixed orifices and the dead lever.

Preferably, the filter frame is provided with a through groove, the through groove and the sliding groove are communicated with each other, the through groove is connected with a pull rod in a sliding manner, and the pull rod is fixedly connected with the sliding block.

Preferably, the mud discharging device comprises a positive and negative rotation motor, the positive and negative rotation motor is fixedly mounted on the outer wall of the drainage well, a rotating shaft is fixedly connected to the output shaft of the positive and negative rotation motor, the rotating shaft is located at one end of the inner side of the drainage well and is fixedly connected with a first bevel gear, a second bevel gear is meshed with the first bevel gear, a second threaded rod is fixedly connected to the second bevel gear, a lifting frame is connected to the second threaded rod through threads, a guide rod is slidably connected to one end, away from the second threaded rod, of the lifting frame, the bottom of the second threaded rod is rotatably connected with the bottom of the drainage well through a bearing, the guide rod is fixedly connected with the bottom of the drainage well, and a filter cloth is fixedly connected to the middle of the lifting frame.

Compared with the prior art, the utility model has the following beneficial effects:

1. when the manhole cover is disassembled, the driving rod is rotated, the first threaded rod can be driven to rotate through the driving bevel gear and the driven bevel gear, the first threaded rod is in threaded connection with the inserted rod, the inserted rod is in a cuboid structure and is limited in sliding connection with the manhole cover, when the first threaded rod rotates, the inserted rod can move, the manhole cover is placed on a first supporting frame at the upper end of the drainage well, the inserted rod is inserted into the insertion hole, the fixing of the manhole cover and the drainage well can be completed, the driving rod is rotatably connected with the supporting plate through the bearing, the supporting plate plays a supporting role, the driving rod can be ensured to stably rotate in the mounting groove, after the manhole cover is used, a padlock is locked in the locking hole on the connecting plate on the manhole cover plate and the manhole cover, the cover plate can be locked, the cover plate can be effectively prevented from being opened by external personnel, the inserted rod is pulled out of the insertion hole by the rotating driving rod, the well lid is prevented from being stolen.

2. Water flow enters into the drainage shaft through the water inlet on the well lid in this device, the bottom of drainage shaft can subside silt, rivers discharge through the drainage pipe that is located the middle part, silt subsides in the bottom of drainage shaft, when needing to handle, the motor circular telegram that will just reverse, it is rotatory that just reverse motor drives second bevel gear through first bevel gear, second bevel gear drives the second threaded rod rotatory, second threaded rod and lifting frame threaded connection, the lifting frame opposite side can go up and down in the drainage shaft under the spacing of guide bar, the lifting frame that will be located the drainage shaft bottom goes up and down, the filter cloth can rise the top of drainage shaft with the silt of drainage shaft bottom, conveniently clear up, regularly collect mud and can not only reduce the inside peculiar smell of drainage shaft, and can have effectively to prevent pipe blockage.

3. The filter screen through crossing on the filter frame in this device can block the rubbish that enters into the inside of drainage shaft through the water inlet, prevent that rubbish from entering into in the drainage shaft, prevent that the pipeline from blockking up, clean staff interval time is opened the apron, pull down the well lid, it can to clear up the filter box, in addition, the pulling pull rod, the pull rod drives the slider motion, the slider drives the dead lever motion, the dead lever is hidden in the spout, at this moment, put the filter frame on the intraoral second braced frame of filter box opening, loosen the pull rod, under reset spring's spring action, reset spring drives the dead lever and inserts in the fixed orifices, accomplish to cross and be connected between filter frame and the filter box, through above setting, conveniently will cross the filter frame and dismantle, the convenience is changed it.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the structure of a drainage well according to the present invention.

FIG. 3 is a sectional view of a drain well according to the present invention

Fig. 4 is a schematic structural view of the manhole cover of the present invention.

Fig. 5 is a schematic structural view of another angle of the well lid of the present invention.

Fig. 6 is a cross-sectional view of the well lid of the present invention.

Fig. 7 is an enlarged view of the utility model at a in fig. 6.

Fig. 8 is a cross-sectional view of a filter cassette and filter frame of the present invention.

In the figure: 1. a drainage well; 2. a well cover; 3. a water inlet; 4. a cover plate; 5. a connecting plate; 6. a guide bar; 7. a groove; 8. a first support frame; 9. a jack; 10. inserting a rod; 11. a first threaded rod; 12. a driven bevel gear; 13. a support plate; 14. a drive rod; 15. mounting grooves; 16. a drive bevel gear; 17. a filter cartridge; 18. a bolt; 19. a second support frame; 20. a filter frame; 21. a filter screen; 22. a chute; 23. a slider; 24. a spring; 25. fixing the rod; 26. a fixing hole; 27. a through groove; 28. a pull rod; 29. a water discharge pipeline; 30. a positive and negative rotation motor; 31. a rotating shaft; 32. a first bevel gear; 33. a second bevel gear; 34. a second threaded rod; 35. a lifting frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-8, a town road drainage device, including drainage well 1, drainage well 1's upper end is provided with well lid 2, is provided with fixing device between well lid 2 and the drainage well 1, has seted up many water inlets 3 on the well lid 2, and the lower extreme of water inlet 3 is provided with filter equipment, and drainage well 1's outside middle part is connected with drainage pipe 29, and drainage well 1's bottom is provided with row mud device.

1 upper end opening of drainage shaft, the first braced frame 8 of fixedly connected with on the upper end opening inside wall of drainage shaft 1, mutually support and set up between first braced frame 8 and the well lid 2, recess 7 has been seted up to the both sides of well lid 2, when installing well lid 2, can pass through the setting of first braced frame 8, place well lid 2 in drainage shaft 1's upper end, well lid 2's both sides all are provided with recess 7, people's finger position can be put in recess 7, make things convenient for under the lifting of well lid 2, well lid 2 is placed after, rivers enter into drainage shaft 1 through water inlet 3 on the well lid 2.

The fixing device comprises a mounting groove 15, the mounting groove 15 is arranged on two sides of the upper surface of the well lid 2, a bearing seat is fixedly arranged on the inner wall of the mounting groove 15, a first threaded rod 11 is rotatably connected in the bearing seat through a bearing, an inserted rod 10 is in threaded connection with the end part of the first threaded rod 11, the inserted rod 10 is in a cuboid structure, the inserted rod 10 is in sliding connection with the well lid 2, jacks 9 are respectively arranged on the inner walls of two sides of the upper end of the drainage well 1, the inserted rod 10 and the jacks 9 are mutually matched, the first threaded rod 11 is in threaded connection with the inserted rod 10, and the inserted rod 10 is in sliding connection with the well lid 2 and is limited, when first threaded rod 11 is rotatory, the inserted bar 10 can take place to remove, puts well lid 2 on the first braced frame 8 of drainage well 1 upper end, inserts inserted bar 10 in the jack 9, can accomplish well lid 2 and drainage well 1's fixed.

Fixedly connected with driven bevel gear 12 on first threaded rod 11, driven bevel gear 12's upper end meshing has drive bevel gear 16, drive bevel gear 16's upper end middle part fixedly connected with actuating lever 14, fixedly connected with backup pad 13 on the inner wall of mounting groove 15, rotate through the bearing between backup pad 13 and the actuating lever 14 and be connected, rotatory actuating lever 14, it is rotatory to drive first threaded rod 11 through drive bevel gear 16 and driven bevel gear 12, rotate through the bearing between actuating lever 14 and the backup pad 13 and be connected, backup pad 13 plays the effect of support, can guarantee that actuating lever 14 can be stable at mounting groove 15 internal rotation.

Be provided with apron 4 on the upper surface of mounting groove 15, the one end of apron 4 is articulated with mounting groove 15, equal fixedly connected with connecting plate 5 on the other end upper surface of apron 4 and the upper surface of well lid 2, the lockhole has been seted up on connecting plate 5, when using, can lock the padlock in the lockhole on connecting plate 5 on apron 4 and the well lid 2, thereby can lock apron 4, can prevent effectively that external personnel from opening apron 4, rotary drive pole 14 takes inserted bar 10 out from jack 9, prevent that well lid 2 from being stolen.

The filter equipment includes box body filter cartridge 17, and filter cartridge 17 sets up the lower extreme at well lid 2, through 18 fixed connection of a plurality of bolts between filter cartridge 17 and the well lid 2, with well lid 2 from the drainage well 1 after pulling down, loosen bolt 18 and can pull down filter cartridge 17 from well lid 2.

The opening has been seted up on the bottom surface of filter box 17, fixedly connected with second braced frame 19 on the opening inner wall of filter box 17, be provided with filter frame 20 on the second braced frame 19, filter frame 20 inboard fixedly connected with filter screen 21, can block the rubbish that enters into drainage well 1 inside through water inlet 3 through filter screen 21 on the filter frame 20, prevent that rubbish from entering into drainage well 1 in, prevent that the pipeline from blockking up, clean staff separates the time and opens apron 4, pull down well lid 2, it can to clear up filter box 17.

Sliding grooves 22 are formed in two sides of the filter frame 20, sliding blocks 23 are connected in the sliding grooves 22 in a sliding mode, reset springs 24 are arranged in the sliding grooves 22, one ends of the reset springs 24 are fixedly connected with the outer walls of the sliding blocks 23, the other ends of the reset springs 24 are fixedly connected with the inner walls of the sliding grooves 22, one ends of the sliding blocks 23, far away from the reset springs 24, are fixedly connected with fixing rods 25, fixing holes 26 are formed in the inner wall of an opening of the filter box 17, and the fixing holes 26 and the fixing rods 25 are matched with each other.

The filter frame 20 is provided with a through groove 27, the through groove 27 is communicated with the sliding groove 22, a pull rod 28 is connected in the through groove 27 in a sliding mode, the pull rod 28 is fixedly connected with the sliding block 23, the pull rod 28 is pulled, the pull rod 28 drives the sliding block 23 to move, the sliding block 23 drives the fixing rod 25 to move, the fixing rod 25 is hidden in the sliding groove 22, at the moment, the filter frame 20 is placed on the second supporting frame 19 in the opening of the filter box 17, the pull rod 28 is loosened, the reset spring 24 drives the fixing rod 25 to be inserted into the fixing hole 26 under the elastic action of the reset spring 24, connection between the filter frame 20 and the filter box 17 is completed, through the arrangement, the filter frame 20 is convenient to detach, and is convenient to replace.

The mud discharging device comprises a forward and reverse rotating motor 30, the forward and reverse rotating motor 30 is fixedly installed on the outer wall of the drainage well 1, a rotating shaft 31 is fixedly connected to an output shaft of the forward and reverse rotating motor 30, one end of the rotating shaft 31, which is positioned at the inner side of the drainage well 1, is fixedly connected with a first bevel gear 32, a second bevel gear 33 is meshed with the first bevel gear 32, a second threaded rod 34 is fixedly connected to the second bevel gear 33, a lifting frame 35 is in threaded connection with the second threaded rod 34, one end, far away from the second threaded rod 34, of the lifting frame 35 is in sliding connection with a guide rod 6, the bottom of the second threaded rod 34 is in rotating connection with the bottom of the drainage well 1 through a bearing, the guide rod 6 is fixedly connected with the bottom of the drainage well 1, and filter cloth is fixedly connected to the middle of the lifting frame 35, when the mud discharging device is used, silt can be settled at the bottom of the drainage well 1, and water flow is discharged through a drainage pipeline 29 positioned in the middle, silt subsides the bottom at drainage shaft 1, when needing to handle, with the circular telegram of positive reverse motor 30, positive reverse motor 30 drives second bevel gear 33 rotatoryly through first bevel gear 32, second bevel gear 33 drives second threaded rod 34 rotatoryly, second threaded rod 34 and lifting frame 35 threaded connection, lifting frame 35 opposite side can go up and down in drainage shaft 1 under the spacing of guide bar 6, the lifting frame 35 that will be located drainage shaft 1 bottom goes up and down, the filter cloth can rise the top of drainage shaft 1 with the silt of drainage shaft 1 bottom, conveniently clear up, regularly collect mud can not only reduce the inside peculiar smell of drainage shaft 1, and can have effectively to prevent pipe blockage.

The working principle of the utility model is as follows: when the device is used, the well lid 2 is placed at the upper end of the drainage well 1, the grooves 7 are arranged on two sides of the well lid 2, the finger part of a person can be placed in the grooves 7, the lifting of the well lid 2 is convenient, after the well lid 2 is placed, water flow enters the drainage well 1 through the water inlet 3 on the well lid 2, the bottom of the drainage well 1 can settle silt, the water flow is discharged through the drainage pipeline 29 positioned in the middle, the silt settles at the bottom of the drainage well 1, when treatment is needed, the forward and reverse motor 30 is electrified, the forward and reverse motor 30 drives the second bevel gear 33 to rotate through the first bevel gear 32, the second bevel gear 33 drives the second threaded rod 34 to rotate, the second threaded rod 34 is in threaded connection with the lifting frame 35, the other side of the lifting frame 35 can lift in the drainage well 1 under the limit of the guide rod 6, and the lifting frame 35 positioned at the bottom of the drainage well 1 is lifted, the filter cloth can lift silt at the bottom of the drainage well 1 to the top of the drainage well 1, cleaning is convenient, sludge can be regularly collected, peculiar smell in the drainage well 1 can be reduced, pipeline blockage can be effectively prevented, when the well lid 2 is disassembled, the driving rod 14 is rotated, the first threaded rod 11 can be driven to rotate through the driving bevel gear 16 and the driven bevel gear 12, the first threaded rod 11 is in threaded connection with the inserted rod 10, the inserted rod 10 is of a cuboid structure and is limited in sliding connection with the well lid 2, when the first threaded rod 11 rotates, the inserted rod 10 can move, the well lid 2 is placed on the first supporting frame 8 at the upper end of the drainage well 1, the inserted rod 10 is inserted into the insertion hole 9, fixing of the well lid 2 and the drainage well 1 can be completed, the driving rod 14 is rotatably connected with the supporting plate 13 through a bearing, the supporting plate 13 plays a supporting role, and can ensure that the driving rod 14 can stably rotate in the mounting groove 15, after the use is finished, a padlock is locked in the cover plate 4 and the lock hole on the connecting plate 5 on the well lid 2, so that the cover plate 4 can be locked, the cover plate 4 can be effectively prevented from being opened by external personnel, the inserted rod 10 is pulled out from the insertion hole 9 by rotating the driving rod 14, the well lid 2 is prevented from being stolen, the garbage entering the drainage well 1 through the water inlet 3 can be blocked by the filter screen 21 on the filter frame 20, the garbage is prevented from entering the drainage well 1, the pipeline blockage is prevented, the cover plate 4 is opened by cleaning staff at intervals, the well lid 2 is detached, the filter box 17 is cleaned, in addition, the pull rod 28 is pulled, the pull rod 28 drives the slide block 23 to move, the slide block 23 drives the fixed rod 25 to move, the fixed rod 25 is hidden in the sliding groove 22, at the moment, the filter frame 20 is placed on the second supporting frame 19 in the opening of the filter box 17, the pull rod 28 is loosened, under the elastic action of the reset spring 24, the reset spring 24 drives the fixing rod 25 to be inserted into the fixing hole 26, connection between the filter frame 20 and the filter box 17 is completed, and through the arrangement, the filter frame 20 is conveniently detached and replaced.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A town road drainage device which characterized in that: including drainage shaft (1), the upper end of drainage shaft (1) is provided with well lid (2), be provided with fixing device between well lid (2) and drainage shaft (1), many water inlets (3) have been seted up on well lid (2), the lower extreme of water inlet (3) is provided with filter equipment, the outside middle part of drainage shaft (1) is connected with drainage pipe (29), the bottom of drainage shaft (1) is provided with row mud device.

2. A municipal road drainage device according to claim 1, wherein: drainage well (1) upper end opening, first braced frame (8) of fixedly connected with on the upper end opening inside wall of drainage well (1), mutually support and set up between first braced frame (8) and well lid (2), recess (7) are seted up to the both sides of well lid (2).

3. A municipal road drainage device according to claim 1, wherein: fixing device includes mounting groove (15), the both sides at well lid (2) upper surface are seted up in mounting groove (15), the inner wall fixed mounting of mounting groove (15) has the bearing frame, it is connected with first threaded rod (11) to rotate through the bearing in the bearing frame, threaded connection has inserted bar (10) on the tip of first threaded rod (11), inserted bar (10) are the cuboid structure, sliding connection between inserted bar (10) and well lid (2), jack (9) have all been seted up on the upper end both sides inner wall of drainage well (1), mutually support the setting between inserted bar (10) and jack (9).

4. A municipal road drainage device according to claim 3, wherein: fixedly connected with driven bevel gear (12) on first threaded rod (11), the meshing of the upper end of driven bevel gear (12) has drive bevel gear (16), the upper end middle part fixedly connected with actuating lever (14) of drive bevel gear (16), fixedly connected with backup pad (13) on the inner wall of mounting groove (15), rotate through the bearing between backup pad (13) and actuating lever (14) and be connected.

5. A municipal road drainage device according to claim 3, wherein: be provided with apron (4) on the upper surface of mounting groove (15), the one end and mounting groove (15) of apron (4) are articulated, equal fixedly connected with connecting plate (5) on the other end upper surface of apron (4) and the upper surface of well lid (2), the lockhole has been seted up on connecting plate (5).

6. A municipal road drainage device according to claim 1, wherein: the filter device comprises a box body filter box (17), wherein the filter box (17) is arranged at the lower end of the well cover (2), and the filter box (17) is fixedly connected with the well cover (2) through a plurality of bolts (18).

7. A municipal road drainage device according to claim 6, wherein: the filter box is characterized in that an opening is formed in the bottom surface of the filter box (17), a second supporting frame (19) is fixedly connected to the inner wall of the opening of the filter box (17), a filter frame (20) is arranged on the second supporting frame (19), and a filter screen (21) is fixedly connected to the inner side of the filter frame (20).

8. A municipal road drainage device according to claim 7, wherein: sliding grooves (22) are formed in two sides of the filter frame (20), sliding blocks (23) are connected in the sliding grooves (22), reset springs (24) are arranged in the sliding grooves (22), one ends of the reset springs (24) are fixedly connected with the outer walls of the sliding blocks (23), the other ends of the reset springs (24) are fixedly connected with the inner walls of the sliding grooves (22), one ends of the sliding blocks (23) far away from the reset springs (24) are fixedly connected with fixing rods (25), fixing holes (26) are formed in the inner wall of an opening of the filter box (17), and the fixing holes (26) and the fixing rods (25) are matched with each other.

9. A municipal road drainage device according to claim 8, wherein: the filter frame (20) is provided with a through groove (27), the through groove (27) is communicated with the sliding groove (22), the through groove (27) is internally connected with a pull rod (28) in a sliding manner, and the pull rod (28) is fixedly connected with the sliding block (23).

10. A municipal road drainage device according to claim 1, wherein: the mud discharging device comprises a positive and negative rotation motor (30), the positive and negative rotation motor (30) is fixedly installed on the outer wall of the drainage well (1), a rotating shaft (31) is fixedly connected to the output shaft of the positive and negative rotation motor (30), the rotating shaft (31) is located at one end of the inner side of the drainage well (1), a first bevel gear (32) is fixedly connected to one end of the inner side of the drainage well (1), a second bevel gear (33) is meshed to the first bevel gear (32), a second threaded rod (34) is fixedly connected to the second bevel gear (33), a lifting frame (35) is in threaded connection to the second threaded rod (34), a guide rod (6) is slidably connected to one end, far away from the second threaded rod (34), of the lifting frame (35), the bottom of the second threaded rod (34) is rotatably connected with the bottom of the drainage well (1) through a bearing, and the guide rod (6) is fixedly connected with the bottom of the drainage well (1), the middle part of the lifting frame (35) is fixedly connected with filter cloth.