Anti-accumulation road surface snow sweeping device for road and bridge maintenance

By designing an anti-accumulation road snow-clearing device and utilizing a combination of a movable plate, a telescopic rod, and a return spring, the angle adjustment and buffering of the snow-clearing barrel can be achieved, thus solving the problems of snow accumulation and parts damage in traditional snow-clearing machines and improving the snow-clearing efficiency and durability of the device.

CN120625530APending Publication Date: 2025-09-12广东长大道路养护有限公司 +1
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202511083746.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-04
Publication Date
2025-09-12

AI Technical Summary

Technical Problem

Traditional snow blowers tend to cause snow accumulation when clearing snow, affecting the efficiency of the cleaning brushes and easily damaging parts when coming into contact with uneven ground.

Method used

A snow-clearing device to prevent accumulation of road snow is designed. It adopts a movable plate and telescopic rod structure, combined with the design of a reset spring and an elliptical block to achieve the angle adjustment and buffering function of the snow-clearing barrel. The up and down reciprocating motion and vibration of the snow-clearing barrel can avoid snow accumulation and hard collision.

Benefits of technology

Effectively prevent snow accumulation, improve the snow clearing efficiency of the cleaning brush, reduce damage to the device, and ensure the stability and durability of the snow clearing process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120625530A_ABST
    Figure CN120625530A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of road and bridge maintenance, in particular to an anti-accumulation road surface snow sweeping device for road and bridge maintenance, which comprises a mounting frame, a movable plate is mounted at one end of the top of the outer side of the mounting frame, and a supporting block pushes or pulls the movable plate through a hinged movable rod. When an oval block rotates to make contact with an extrusion block, downward pressure can be generated on the extrusion block, the extrusion block transmits the pressure to the snow sweeping barrel, the snow sweeping barrel overcomes the elastic force of a first reset spring and a second reset spring to move downwards, and the snow sweeping barrel is driven to move downwards. When the oval block continues to rotate to leave the extrusion block, the snow sweeping barrel moves upwards under the action of a reset spring, so that the snow sweeping barrel moves up and down in a reciprocating mode, accumulated snow accumulated in the snow sweeping barrel is shaken down by continuously knocking the snow sweeping barrel to generate vibration, the situation that the snow sweeping efficiency of the cleaning brush is influenced along with more accumulated snow is avoided, operation is convenient, and the practicability is high. And the practicability is better.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of road and bridge maintenance, in particular to a road surface snow-clearing device for preventing accumulation of snow for road and bridge maintenance. Background Art

[0002] Road and bridge maintenance is a systematic and continuous engineering management work that runs through the entire process of road and bridge construction from its completion and commissioning to its entire service life. It aims to ensure that roads and bridges are always in good technical condition through a series of measures such as regular inspection, testing and evaluation, scientific maintenance and timely repair of roads, bridges and their ancillary facilities, to ensure their structural safety, complete functions and smooth traffic, thereby providing solid support for the efficient operation of transportation and social economic development. During the long-term use of roads and bridges, they will inevitably be affected by natural environmental factors such as wind, sun, rain, freeze-thaw cycles, etc. These factors will gradually erode the bridge structure materials, leading to problems such as concrete carbonization and steel corrosion, reducing the strength and durability of the structure. At the same time, the repeated action of vehicle loads, especially the frequent passage of overloaded vehicles, will cause the bridge structure to bear stresses beyond the design standards, causing structural fatigue damage, cracks and other diseases, and in severe cases even affecting the bearing capacity and safety of the bridge.

[0003] In winter, roads and bridges are prone to snow accumulation, which leads to traffic jams. Therefore, it is necessary to clear the snow on the road. Traditionally, snowplows are used to clear the snow. However, when traditional snowplows are used to clear snow for a long time, some snow will accumulate inside the snowplow barrel. As the amount of snow accumulates, the efficiency of the cleaning brush in clearing the snow will be affected. In addition, traditional snowplows do not have a buffer mechanism on the snowplow barrel when clearing snow. When it comes into contact with uneven ground, it is easy to cause damage to parts. Therefore, there are certain disadvantages.

[0004] Therefore, in order to solve the above problems, the present invention provides a road surface snow-clearing device for preventing accumulation of snow for road and bridge maintenance. Summary of the Invention

[0005] The object of the present invention is to provide a road snow-clearing device for preventing accumulation of snow on a road surface for road and bridge maintenance, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A road snow-clearing device for road and bridge maintenance, comprising a mounting frame, a movable plate is installed at one end of the outer top of the mounting frame, a plurality of connecting frames are installed at the outer end of the movable plate away from the mounting frame, a fixed plate is commonly installed at the bottom of the connecting frame, support frames are symmetrically installed at both ends of the bottom of the fixed plate, a telescopic rod is installed at the bottom of the support frame, a first return spring is installed on the outer ring surface of the telescopic rod, a fixed seat is installed at the bottom of the telescopic rod, a snow-clearing barrel is commonly installed at the bottom of the fixed seat, a rotating shaft is installed between the inner side walls of the snow-clearing barrel, a plurality of limit seats are installed on the outer ring surface of the rotating shaft in a ring array, a mounting groove is provided on the outside of the limit seat, and a cleaning brush is installed inside the mounting groove.

[0007] Preferably, a fixing bracket is installed outside the mounting bracket and below the movable plate, a threaded rod is installed between the inner top and bottom of the fixing bracket, a first servo motor is installed on the top of the fixing bracket and its output shaft passes through the interior of the fixing bracket and is connected to one end of the threaded rod, and a movable block is installed on the outer ring surface of the threaded rod.

[0008] Preferably, limiting slots are symmetrically provided at both ends of the exterior of the fixing frame, and fixing rods are installed at both ends of the exterior of the movable block and inside the two limiting slots. A support block is installed after the fixing rod passes through the limiting slot at one end away from the movable block, and a movable rod is hingedly installed on the outside of the support block. The end of the movable rod away from the support block is hinged to the bottom of the movable plate, and the outer end of the movable plate is rotatably connected to the outer side of the mounting frame.

[0009] Preferably, fixing ears are symmetrically installed at both ends of the top of the fixing seat, a second return spring is installed on one side of the outer side of the fixing ear, and the end of the second return spring away from the fixing ear is connected to the outside of the support frame.

[0010] Preferably, vertical plates are symmetrically installed at the edges of both ends of the bottom of the fixed plate, and sliding grooves are opened on the outer sides of the vertical plates. Fixed columns are installed at both ends of the outer side of the snow sweeper and inside the two sliding grooves.

[0011] Preferably, connecting ears are symmetrically installed at both ends of the outside of the fixed plate, a rotating rod is installed between the outer side surfaces of the connecting ears, and two elliptical blocks are installed on the outer ring surface of the rotating rod. A first drive motor is installed on the outside of one of the connecting ears and its output shaft passes through the connecting ear and is connected to one end of the rotating rod.

[0012] Preferably, a squeezing block is installed on the top of the snow sweeper and directly below the two elliptical blocks. When the elliptical block rotates, it will contact the squeezing block and squeeze the snow sweeper to descend.

[0013] Preferably, a second drive motor is installed at one end of the exterior of the snow sweeper, and an output shaft of the second drive motor passes through the interior of the snow sweeper and is connected to one end of the rotating shaft.

[0014] Preferably, the size of the inner side wall of the mounting groove is adapted to the size of the outer side surface of the bottom end of the cleaning brush, and the outer side of the bottom end of the cleaning brush is slidably connected to the inner side wall of the mounting groove.

[0015] Preferably, a fastening bolt is installed on one end of the outer portion of the limiting seat, and one end of the fastening bolt passes through the interior of the mounting groove and extends to the interior of the cleaning brush.

[0016] In summary, the present invention has the following beneficial technical effects: The snow sweeping device for preventing accumulation of road surfaces for road and bridge maintenance is characterized in that the support block pushes or pulls the movable plate through a hinged movable rod, thereby adjusting the angles of the fixed plate and the snow sweeping barrel so that the cleaning brush can better contact the road surface for snow sweeping. During the snow sweeping process, when the snow sweeping barrel encounters an uneven road surface or an obstacle, the telescopic rod will be compressed and the first return spring will also be compressed accordingly to play a buffering role, thereby avoiding damage to the device by hard collision. When the elliptical block rotates to contact the extrusion block, it will generate downward pressure on the extrusion block, and the extrusion block will transmit the pressure to the snow sweeping barrel, so that the snow sweeping barrel can overcome the first return spring. The spring force of the first and second return springs moves the snow sweeper downward, and when the elliptical block continues to rotate away from the extrusion block, the snow sweeper moves upward under the action of the return spring, thereby realizing the up and down reciprocating motion of the snow sweeper. By continuously knocking the snow sweeper to generate vibration, the accumulated snow inside the snow sweeper is shaken down to avoid affecting the efficiency of the cleaning brush in clearing snow as the accumulation increases. After the cleaning brush is installed in the mounting groove, the fastening bolt is tightened, and one end of the fastening bolt enters the inside of the cleaning brush to fix the cleaning brush in the mounting groove of the limit seat. It is easy to operate and more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This invention Figure 1 Schematic diagram of the overall structure from above; Figure 3 This invention Figure 1 Schematic diagram of the mounting frame structure; Figure 4 This invention Figure 1 Schematic diagram of the snow sweeper structure; Figure 5 This invention Figure 4 Schematic diagram of the structure on the left; Figure 6 This invention Figure 4 Schematic diagram of the cleaning brush structure.

[0018] Explanation of the accompanying drawings: 1. Mounting frame; 2. Movable plate; 3. Connecting frame; 4. Fixed plate; 5. Support frame; 6. Telescopic rod; 7. First return spring; 8. Fixed seat; 9. Snow sweeper; 10. Rotating shaft; 11. Limit seat; 1101. Mounting groove; 12. Cleaning brush; 13. Fixed frame; 1301. Limit groove; 14. Threaded rod; 15. First servo motor; 16. Movable block; 17. Fixed rod; 18. Support block; 19. Movable rod; 20. Fixed ear; 21. Second return spring; 22. Vertical plate; 2201. Slide groove; 23. Fixed column; 24. Connecting ear; 25. Rotating rod; 26. Elliptical block; 27. First drive motor; 28. Extrusion block; 29. ​​Fastening bolt; 30. Second drive motor. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1 - Figure 6 The present invention is described in further detail.

[0020] A snow-clearing device for preventing accumulation of road and bridge maintenance, Figure 1 - Figure 6 , including a mounting frame 1, a movable plate 2 is installed at one end of the outer top of the mounting frame 1, a plurality of connecting frames 3 are installed at the end of the outer side of the movable plate 2 away from the mounting frame 1, a fixing plate 4 is commonly installed at the bottom of the connecting frame 3, and support frames 5 are symmetrically installed at both ends of the bottom of the fixing plate 4, a telescopic rod 6 is installed at the bottom of the support frame 5, a first return spring 7 is installed on the outer ring surface of the telescopic rod 6, a fixed seat 8 is installed on the bottom of the telescopic rod 6, and a snow sweeper 9 is commonly installed at the bottom of the fixed seat 8, a rotating shaft 10 is installed between the inner side walls of the snow sweeper 9, and a plurality of limit seats 11 are installed on the outer ring surface of the rotating shaft 10 in a ring array, a mounting groove 1101 is opened on the outside of the limit seat 11, and a cleaning brush 12 is installed inside the mounting groove 1101.

[0021] Reference Figure 1 - Figure 3A fixing frame 13 is installed on the outside of the mounting frame 1 and below the movable plate 2. A threaded rod 14 is installed between the top and bottom of the inner side of the fixing frame 13. A first servo motor 15 is installed on the top of the fixing frame 13, and its output shaft passes through the inside of the fixing frame 13 and is connected to one end of the threaded rod 14, and a movable block 16 is installed on the outer ring surface of the threaded rod 14. After the first servo motor 15 is started, its output shaft drives the threaded rod 14 to rotate in the fixing frame 13. Since the movable block 16 is sleeved on the threaded rod 14, the movable block 16 will make a straight line movement up and down along the threaded rod 14 under the action of the thread. Limiting slots 1301 are symmetrically provided at both ends of the outside of the fixing frame 13, and fixing rods 17 are installed at both ends of the outside of the movable block 16 and inside the two limiting slots 1301. The fixed rod 17 is away from one end of the movable block 16 and After passing through the limiting groove 1301, a support block 18 is installed, and a movable rod 19 is hingedly installed on the outside of the support block 18. The end of the movable rod 19 away from the support block 18 is hinged to the bottom of the movable plate 2, and the outer end of the movable plate 2 is rotatably connected to the outer side of the mounting frame 1. When the movable block 16 moves up and down, it drives the fixed rod 17 to slide up and down in the limiting groove 1301. The limiting groove 1301 limits the fixed rod 17 to ensure that the movable block 16 can only move in a straight line. The fixed rod 17 drives the support block 18 to move up and down, and the support block 18 pushes or pulls the movable plate 2 through the hinged movable rod 19. Since one end of the movable plate 2 is rotatably connected to the mounting frame 1, the movable plate 2 will swing up and down around the rotation point, thereby adjusting the angle of the fixed plate 4 and the snow sweeper 9 so that the cleaning brush 12 can better contact the road surface for snow sweeping.

[0022] Reference Figure 4 - Figure 5 , fixing ears 20 are symmetrically installed at both ends of the top of the fixing seat 8, and a second return spring 21 is installed on one side of the outer side of the fixing ear 20, and the end of the second return spring 21 away from the fixing ear 20 is connected to the outside of the support frame 5. When the snow sweeping tube 9 encounters an uneven road surface or an obstacle during snow sweeping, the telescopic rod 6 will be compressed and the first return spring 7 will also be compressed to play a buffering role, avoiding hard collision damage to the device, while ensuring that the cleaning brush 12 can have good contact with the road surface, and the fixing seat 8 will drive the fixing ear 20 to stretch the second return spring 21, and the second return spring 21 plays a secondary buffering role The impact effect reduces the damage to the device caused by the impact force. Vertical plates 22 are symmetrically installed at the edges of both ends of the bottom of the fixed plate 4. A slide groove 2201 is opened on the outer surface of the vertical plate 22. Fixed columns 23 are installed at both ends of the outside of the snow sweeper 9 and inside the two slide grooves 2201. The slide groove 2201 on the vertical plate 22 provides a guide for the up and down movement of the snow sweeper 9. The fixed columns 23 at both ends of the snow sweeper 9 slide in the slide groove 2201 so that the snow sweeper 9 can only move up and down in a straight line along the direction of the slide groove 2201, ensuring the stability of the movement of the snow sweeper 9 and avoiding its deviation during movement.

[0023] Reference Figure 4 - Figure 5 , connecting ears 24 are symmetrically installed at both ends of the outside of the fixed plate 4, and a rotating rod 25 is installed between the outer sides of the connecting ears 24. Two elliptical blocks 26 are installed on the outer ring surface of the rotating rod 25, and a first driving motor 27 is installed on the outside of one of the connecting ears 24 and its output shaft passes through the connecting ear 24 and is connected to one end of the rotating rod 25. After the first driving motor 27 is started, its output shaft drives the rotating rod 25 to rotate, and the elliptical block 26 on the rotating rod 25 rotates accordingly. The special shape of the elliptical block 26 will produce height changes during the rotation process. An extrusion block 28 is installed on the top of the snow sweeper 9 and directly below the two elliptical blocks 26. When the elliptical block 26 rotates, it will squeeze with the extrusion block 28. The block 28 contacts and squeezes the snow sweeper 9 to move down. When the elliptical block 26 rotates to contact the squeezing block 28, due to the shape characteristics of the elliptical block 26, downward pressure is generated on the squeezing block 28. The squeezing block 28 transmits the pressure to the snow sweeper 9, causing the snow sweeper 9 to move downward by overcoming the elastic force of the first return spring 7 and the second return spring 21. When the elliptical block 26 continues to rotate away from the squeezing block 28, the snow sweeper 9 moves upward under the action of the return spring, thereby realizing the up and down reciprocating motion of the snow sweeper 9. By continuously knocking the snow sweeper 9 to generate vibration, the accumulated snow inside the snow sweeper 9 is shaken down to avoid affecting the efficiency of the cleaning brush 12 in clearing snow as the accumulation increases.

[0024] Reference Figure 4 - Figure 6 A second drive motor 30 is installed at one end of the outside of the snow sweeper 9. The output shaft of the second drive motor 30 passes through the interior of the snow sweeper 9 and is connected to one end of the rotating shaft 10. After the second drive motor 30 is started, its output shaft drives the rotating shaft 10 to rotate in the snow sweeper 9, and the limiting seat 11 and the cleaning brush 12 on the rotating shaft 10 rotate accordingly. The cleaning brush 12 contacts the road surface and sweeps away the snow on the road surface to realize the snow sweeping function. The inner side wall size of the mounting groove 1101 is adapted to the outer side size of the bottom end of the cleaning brush 12, and the outer side of the bottom end of the cleaning brush 12 is slidably connected to the inner side wall of the mounting groove 1101, and the mounting groove 1101 is connected to the bottom of the cleaning brush 12. The size of one end of the part is adapted and slidably connected, which facilitates the installation and disassembly of the cleaning brush 12. When the cleaning brush 12 is worn and needs to be replaced, the cleaning brush 12 can be easily pulled out of the mounting groove 1101 and replaced with a new cleaning brush 12 to ensure the snow-clearing effect of the device. A fastening bolt 29 is installed on the outer end of the limit seat 11. One end of the fastening bolt 29 passes through the interior of the mounting groove 1101 and extends to the interior of the cleaning brush 12. When the cleaning brush 12 is installed in the mounting groove 1101, the fastening bolt 29 is tightened. One end of the fastening bolt 29 enters the interior of the cleaning brush 12, fixing the cleaning brush 12 in the mounting groove 1101 of the limit seat 11, making disassembly and assembly convenient.

[0025] The implementation principle of the anti-accumulation road snow-clearing device for road and bridge maintenance according to the embodiment of the present invention is as follows: when using the device, the mounting frame 1 is first mounted on the tractor, and after the first servo motor 15 is started, its output shaft drives the threaded rod 14 to rotate in the fixed frame 13. Since the movable block 16 is sleeved on the threaded rod 14, the movable block 16 will make a straight line movement up and down along the threaded rod 14 under the action of the thread. When the movable block 16 moves up and down, it drives the fixed rod 17 to slide up and down in the limiting groove 1301. The limiting groove 1301 limits the fixed rod 17 to ensure that the movable block 16 can only make a straight line movement. The fixed rod 17 drives the support block 18 to move up and down. The support block 18 pushes or pulls the movable plate 2 through the hinged movable rod 19. One end of the movable plate 2 is rotatably connected to the mounting frame 1, so the movable plate 2 will swing up and down around the rotating point, thereby adjusting the angles of the fixed plate 4 and the snow-clearing barrel 9 so that the cleaning brush 12 can better contact the road surface for snow-clearing work. After the second drive motor 30 is started, its output shaft drives the rotating shaft 10 to rotate in the snow-clearing barrel 9, and the limit seat 11 and the cleaning brush 12 on the rotating shaft 10 rotate accordingly. The cleaning brush 12 contacts the road surface and sweeps away the snow on the road surface, realizing the snow-clearing function. During the snow-clearing process, when the snow-clearing barrel 9 encounters an uneven road surface or an obstacle, the telescopic rod 6 will be compressed and the first return spring 7 will also be compressed to play a buffering role, avoiding hard collision and damaging the device, while ensuring that the cleaning brush 12 can make good contact with the road surface, and the fixed seat 8 will drive the fixed ear 20 stretches the second return spring 21, and the second return spring 21 plays the role of secondary buffering to reduce the damage to the device caused by the impact force. The slide groove 2201 on the vertical plate 22 provides a guide for the up and down movement of the snow sweeper 9. The fixed columns 23 at both ends of the snow sweeper 9 slide in the slide groove 2201 so that the snow sweeper 9 can only make up and down linear movements along the direction of the slide groove 2201, ensuring the stability of the movement of the snow sweeper 9 and avoiding it from deflecting during the movement. When the snow is swept for a long time, a large amount of snow will accumulate inside the snow sweeper 9. After the first drive motor 27 is started, its output shaft drives the rotating rod 25 to rotate, and the elliptical block 26 on the rotating rod 25 rotates accordingly. The special shape of the elliptical block 26 will produce height changes during the rotation. When the elliptical block When the elliptical block 26 rotates to contact the squeezing block 28, due to the shape characteristics of the elliptical block 26, downward pressure is generated on the squeezing block 28, and the squeezing block 28 transmits the pressure to the snow sweeper 9, causing the snow sweeper 9 to move downward by overcoming the elastic force of the first return spring 7 and the second return spring 21. When the elliptical block 26 continues to rotate away from the squeezing block 28, the snow sweeper 9 moves upward under the action of the return spring, thereby realizing the up and down reciprocating motion of the snow sweeper 9. By continuously knocking the snow sweeper 9 to generate vibration, the accumulated snow inside the snow sweeper 9 is shaken off, avoiding that the efficiency of the cleaning brush 12 is affected as the accumulation increases. The mounting groove 1101 is adapted to the size of one end of the bottom of the cleaning brush 12 and is slidably connected, which is convenient for the installation and removal of the cleaning brush 12.When the cleaning brush 12 is worn and needs to be replaced, it can be easily pulled out of the mounting groove 1101 and replaced with a new cleaning brush 12 to ensure the snow-clearing effect of the device. After the cleaning brush 12 is installed in the mounting groove 1101, tighten the fastening bolt 29. One end of the fastening bolt 29 enters the interior of the cleaning brush 12 and fixes the cleaning brush 12 in the mounting groove 1101 of the limit seat 11, making it easy to assemble and disassemble.

[0026] Finally, a few points should be explained: First, in the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "mounted", "connected", and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. The same embodiment and different embodiments of the present invention may be combined with each other without conflict. Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0027] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A snow-clearing device for preventing accumulation of road surfaces for road and bridge maintenance, comprising a mounting frame (1), characterized in that: A movable plate (2) is installed at one end of the outer top of the mounting frame (1), and a plurality of connecting frames (3) are installed at one end of the outer side of the movable plate (2) away from the mounting frame (1), and a fixed plate (4) is installed at the bottom of the connecting frame (3), and support frames (5) are symmetrically installed at both ends of the bottom of the fixed plate (4), and a telescopic rod (6) is installed at the bottom of the support frame (5), and a first return spring (7) is installed on the outer ring surface of the telescopic rod (6), and a fixed seat (8) is installed at the bottom of the telescopic rod (6), and a snow sweeper (9) is installed at the bottom of the fixed seat (8), and a rotating shaft (10) is installed between the inner side walls of the snow sweeper (9), and a plurality of limiting seats (11) are installed on the outer ring surface of the rotating shaft (10) in a ring array, and a mounting groove (1101) is provided on the outside of the limiting seat (11), and a cleaning brush (12) is installed inside the mounting groove (1101).

2. The anti-accumulation road snow-clearing device for road and bridge maintenance according to claim 1, characterized in that: A fixing frame (13) is installed outside the mounting frame (1) and below the movable plate (2), a threaded rod (14) is installed between the inner top and bottom of the fixing frame (13), a first servo motor (15) is installed on the top of the fixing frame (13), and its output shaft passes through the interior of the fixing frame (13) and is connected to one end of the threaded rod (14), and a movable block (16) is installed on the outer ring surface of the threaded rod (14).

3. The snow-clearing device for preventing accumulation of road surfaces for road and bridge maintenance according to claim 2, characterized in that: The fixed frame (13) has symmetrically provided limiting grooves (1301) at both ends of the outside of the movable block (16), and fixed rods (17) are installed at both ends of the outside of the movable block (16) and inside the two limiting grooves (1301). The fixed rod (17) is installed with a support block (18) at one end away from the movable block (16) and after passing through the limiting grooves (1301). The support block (18) is hingedly installed with a movable rod (19) at the outside. The movable rod (19) is hingedly connected between one end away from the support block (18) and the bottom of the movable plate (2), and the outer end of the movable plate (2) is rotatably connected to the outer side of the mounting frame (1).

4. The snow-clearing device for preventing accumulation of road surfaces for road and bridge maintenance according to claim 1, characterized in that: Fixing ears (20) are symmetrically mounted on both ends of the top of the fixing seat (8), and a second return spring (21) is mounted on one side of the outside of each fixing ear (20), and one end of the second return spring (21) away from the fixing ear (20) is connected to the outside of the support frame (5).

5. The snow-clearing device for preventing accumulation of road surface for road and bridge maintenance according to claim 1, characterized in that: Vertical plates (22) are symmetrically mounted at both ends of the bottom edge of the fixed plate (4), and a slide groove (2201) is provided on the outer surface of the vertical plate (22). Fixed columns (23) are mounted at both ends of the outside of the snow sweeper (9) and inside the two slide grooves (2201).

6. The snow-clearing device for preventing accumulation of road surfaces for road and bridge maintenance according to claim 5, characterized in that: Connecting ears (24) are symmetrically mounted on both ends of the exterior of the fixing plate (4), a rotating rod (25) is mounted between the outer side surfaces of the connecting ears (24), and two elliptical blocks (26) are mounted on the outer annular surface of the rotating rod (25), wherein a first driving motor (27) is mounted on the exterior of one of the connecting ears (24), and its output shaft passes through the connecting ear (24) and is connected to one end of the rotating rod (25).

7. The snow-clearing device for preventing accumulation of road surfaces for road and bridge maintenance according to claim 1, characterized in that: A squeezing block (28) is installed on the top of the snow sweeping barrel (9) and directly below the two elliptical blocks (26). When the elliptical block (26) rotates, it contacts the squeezing block (28) and squeezes the snow sweeping barrel (9) downward.

8. The snow-clearing device for preventing accumulation of road surfaces for road and bridge maintenance according to claim 1, characterized in that: A second drive motor (30) is installed at one end of the exterior of the snow sweeper (9), and an output shaft of the second drive motor (30) passes through the interior of the snow sweeper (9) and is connected to one end of the rotating shaft (10).

9. The snow-clearing device for preventing accumulation of road surfaces for road and bridge maintenance according to claim 1, characterized in that: The size of the inner side wall of the installation groove (1101) is adapted to the size of the outer side surface of the bottom end of the cleaning brush (12), and the outer side of the bottom end of the cleaning brush (12) is slidably connected to the inner side wall of the installation groove (1101).

10. The snow-clearing device for preventing accumulation of road surfaces for road and bridge maintenance according to claim 1, characterized in that: A fastening bolt (29) is installed on one end of the outer portion of the limiting seat (11), and one end of the fastening bolt (29) passes through the interior of the mounting groove (1101) and extends into the interior of the cleaning brush (12).