A municipal road engineering maintenance device and its maintenance method

Abstract

The present application relates to a maintenance device for municipal road engineering and a maintenance method thereof, belonging to the technical field of municipal engineering. It includes a trolley, moving wheels and a handrail. The moving wheels are arranged at the bottom of the trolley, and the handrail is arranged at the top of the trolley. An installation block is arranged on the end wall of the trolley, and a lifting rod is penetrated through the installation block. The lifting rod is slidably arranged with the installation block; a connecting block is arranged at the bottom end of the lifting rod, and a first cleaning plate is arranged at the bottom end of the connecting block. The first cleaning plate is slidably connected with the connecting block; a second cleaning plate is arranged at one end of the connecting block away from the trolley. Brush hairs are arranged on the surfaces of the first cleaning plate and the second cleaning plate; a linkage assembly is arranged on the trolley, and the linkage assembly is used for driving the sliding between the lifting rod and the installation block while driving the sliding between the first cleaning plate and the connecting block. The present application has the advantages of being convenient for cleaning and maintaining the vertical gaps at the joints of the tiles on both sides of the road, and improving the cleaning effect of the device.

Description

Technical Field

[0001] The present application relates to the technical field of municipal engineering, and in particular to a maintenance device for municipal road engineering and a maintenance method thereof. Background Art

[0002] At present, municipal engineering refers to the construction project of municipal infrastructure. During the long-term operation of municipal engineering roads, regular maintenance and cleaning are required. Therefore, a maintenance device is needed to clean and maintain the stains on the ground to improve the aesthetics of municipal roads.

[0003] In the related technologies, the designed maintenance device includes a trolley and a handrail located on the trolley. Universal wheels are provided at the bottom of the trolley, and a motor is installed on the trolley. The driving shaft of the motor penetrates the trolley and is connected with a cleaning disc. When maintaining and cleaning the road, the trolley is moved through the handrail, and the cleaning disc contacts the surface of the ground road. The cleaning disc is driven by the motor to rotate, and the cleaning disc cleans the ground.

[0004] In view of the above related technologies, the cleaning disc can only clean the road surface. Generally, green belts are configured on both sides of the road. After long-term operation, the walls on the side walls of the green belts will also adhere to a lot of dust and stains. In particular, it is difficult to clean the gaps between the tiles on the side of the green belt. Since most of the gaps at the joints of the tiles are vertical structures, the cleaning effect is poor when directly cleaning with a rotating cleaning disc, and it is difficult for the bristles to sweep out the impurities and dust in the vertical gaps. Therefore, improvement is needed. Summary of the Invention

[0005] The purpose of the present application is to provide a maintenance device for municipal road engineering and a maintenance method thereof, which have the advantages of being convenient for cleaning and maintaining the vertical gaps at the joints of the tiles on both sides of the road and improving the cleaning effect of the device.

[0006] In a first aspect, a maintenance device for municipal road engineering provided by the present application adopts the following technical solution:

[0007] A maintenance device for municipal road engineering includes a trolley, moving wheels and a handrail. The moving wheels are arranged at the bottom of the trolley, the handrail is arranged at the top of the trolley. An installation block is arranged on the end wall of the trolley, and a lifting rod penetrates through the installation block. The lifting rod is slidably arranged with the installation block; a connecting block is arranged at the bottom end of the lifting rod, and a first cleaning plate is arranged at the bottom end of the connecting block. The first cleaning plate is slidably connected with the connecting block; a second cleaning plate is arranged at one end of the connecting block away from the trolley. Bristles are arranged on the surfaces of the first cleaning plate and the second cleaning plate; a linkage assembly is arranged on the trolley, and the linkage assembly is used for driving the lifting rod to slide with the installation block while driving the first cleaning plate to slide with the connecting block.

[0008] By adopting the above technical solution, when using the device to clean and maintain the road, the handrail is used to operate the trolley, and the moving wheels move the trolley. The bristles on the second cleaning plate are abutted against the wall on the side of the road. Then, the linkage component drives the sliding between the lifting rod and the mounting block. The reciprocating lifting of the lifting rod drives the reciprocating lifting of the second cleaning plate. The bristles on the first cleaning plate can clean the wall. At the same time, the linkage component drives the reciprocating sliding between the first cleaning plate and the connecting block. The bristles on the first cleaning plate constantly abut against the ground for cleaning. Since the second cleaning plate moves in the vertical direction, the bristles can clean the stains in the vertical gaps at the joints of the tiles on both sides of the road. Since the first cleaning plate can move vertically while reciprocating, the bristles can lift the stains swept on the ground, thereby improving the cleaning effect of the device.

[0009] Optionally, the linkage component includes a motor, a cam, a butting frame, a linkage block, a rocker, a first curved rod and a second curved rod. The motor is arranged on the trolley. The butting frame is arranged at one end of the lifting rod away from the connecting block. The cam abuts against the driving shaft of the motor. The cam is located inside the butting frame and abuts against the inner wall of the butting frame. The linkage block is fixedly arranged on the trolley. The rocker is rotatably arranged on the linkage block. One end of the first curved rod is hinged to one end of the rocker. The other end of the first curved rod is hinged to the cam. One end of the second curved rod is hinged to the other end of the rocker. The other end of the second curved rod is hinged to the first cleaning plate.

[0010] By adopting the above technical solution, during cleaning, the motor drives the cam to rotate. The cam abuts against the butting frame. The butting frame drives the lifting rod to reciprocate up and down on the mounting block under force. While the cam rotates, the first curved rod drives the rocker to swing on the linkage block under force. When the rocker swings, it pulls or pushes the first cleaning plate through the second curved rod, thereby driving the cleaning plate to reciprocate on the connecting block; realizing continuous rotation of the motor, driving the first cleaning plate to reciprocate and have a certain amplitude of lifting, while the second cleaning plate continuously reciprocates up and down, which is convenient and fast to control and has a low implementation cost.

[0011] Optionally, the linkage component further includes an extended plate. The extended plate is arranged on the surface of the cam. One end of the first curved rod away from the rocker is hinged to the extended plate.

[0012] By adopting the above technical solution, setting the extended plate on the cam can increase the diameter when the cam is connected to the first curved rod. When the cam drives the lifting rod to reciprocate vertically with a short distance, the swing amplitude of the rocker can be increased, thereby increasing the reciprocating sliding distance of the first cleaning plate on the connecting block and improving the cleaning range of the first cleaning plate.

[0013] Optionally, a set of connecting bolts is arranged through the extended plate. The cam is provided with a plurality of connecting holes for the connecting bolts to be inserted. The connecting bolts are threadedly connected with the connecting holes.

[0014] By adopting the above technical solution, the connecting bolt is rotated to connect the connecting bolt with different connecting holes, so that the position of the extension plate on the cam can be adjusted, thereby adjusting the diameter when the cam is connected to the first curved rod, controlling the swing range of the rocker, and adjusting the sliding range and frequency of the first cleaning plate on the connecting block, so that the device can be applied to different environments and improve the applicability of the device.

[0015] Optionally, side plates are provided at both ends of the trolley. The two side plates are located at both ends of the mounting block. A top plate is provided between the tops of the side plates. A guide wheel is rotatably provided at one end of the side plate away from the handrail direction.

[0016] By adopting the above technical solution, when operating the device for cleaning, hold the handrail, press the guide wheel against the wall, and move the trolley. The guide wheel can play a guiding role, facilitating the positioning of the trolley. At the same time, the side plates and the top plate can play a certain isolation role, reducing the diffusion of dust.

[0017] Optionally, the bristles are arranged on the dovetail blocks. Dovetail grooves for inserting the dovetail blocks are provided on the end walls of the first cleaning plate and the second cleaning plate. The dovetail blocks and the dovetail grooves are in interference fit.

[0018] By adopting the above technical solution, through the mutual cooperation of the dovetail groove and the dovetail block, it is convenient to disassemble the bristles for cleaning and replacement, so as to keep the bristles having a good cleaning effect.

[0019] Optionally, a negative pressure chamber is arranged in the mounting block. An air suction pump is arranged on the trolley. The air suction pump is communicated with the negative pressure chamber. A filter screen is arranged between the negative pressure chamber and the air suction pump; a plurality of air suction ports are penetrated through the side wall and the top wall of the mounting block. The air suction ports are communicated with the negative pressure chamber. An air suction hood is arranged at the air suction port.

[0020] By adopting the above technical solution, when using the bristles to clean stains, impurities and dust are easily generated. At this time, the air suction pump works to generate negative pressure in the negative pressure chamber. At this time, the dust generated by cleaning is sucked and can enter the negative pressure chamber through the air suction port. The air suction hood can increase the air suction range of the air suction port, so as to effectively absorb dust and other impurities into the negative pressure chamber, realizing the recycling of dust and impurities. The filter screen can filter the impurities in the negative pressure chamber, thereby reducing environmental pollution, facilitating garbage recycling, and further improving the cleaning efficiency.

[0021] Optionally, a cleaning port is opened on the end wall of the mounting block. A sealing plate is slidably arranged at the cleaning port. The sealing plate is used to seal the cleaning port. A locking buckle is arranged between the sealing plate and the mounting block. The locking buckle is used to fix the sealing plate at the cleaning port.

[0022] By adopting the above technical solution, the sliding sealing plate moves the sealing plate away from the cleaning port. At this time, the cleaning port is used to facilitate the cleaning of the garbage collected in the negative pressure chamber. After the cleaning is completed, the sliding sealing plate is moved again, and the locking buckle is used to fix the sealing plate at the cleaning port, and the sealing plate can seal the cleaning port.

[0023] In a second aspect, a maintenance method for a municipal road engineering maintenance device provided by the present application adopts the following technical solution:

[0024] Operate the handrail, use the moving wheels to move the trolley, so that the guide wheels on the side plate are abutted against the side wall of the green belt wall, and use the moving wheels and guide wheels to move the trolley along the wall; at this time, the bristles of the first cleaning plate are abutted against the ground, and the bristles on the second cleaning plate are abutted against the wall; turn on the motor, the motor drives the cam to rotate continuously, the cam is abutted against the inner wall of the abutting frame, drives the lifting rod to lift and lower repeatedly on the mounting block, the lifting rod drives the second cleaning plate to lift and lower repeatedly through the connecting block, so that the bristles on the second cleaning plate repeatedly clean the gaps on the wall; the lifting rod drives the rocker to rotate through the first curved rod, and the rocker pulls or pushes the first cleaning plate through the second curved rod, so that the first cleaning plate reciprocates and slides at the bottom end of the connecting block, so that the bristles on the first cleaning plate repeatedly clean the ground.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. By setting up the trolley, moving wheels, handrail, mounting block, lifting rod, connecting block, first cleaning plate, second cleaning plate, bristles and linkage components, when using the device to clean and maintain the road, the linkage components drive the lifting rod to lift and lower reciprocally to drive the second cleaning plate to lift and lower reciprocally. The bristles on the second cleaning plate can clean the wall. At the same time, the linkage components drive the first cleaning plate to reciprocate and slide between the connecting blocks, and the bristles on the first cleaning plate are constantly abutted against the ground for cleaning. Since the second cleaning plate moves in the vertical direction, the bristles can clean the stains in the vertical gaps at the joints of the tiles on both sides of the road. Since the first cleaning plate can move vertically while reciprocating and sliding, the bristles can lift the stains swept on the ground, thereby improving the cleaning effect of the device;

[0027] 2. By setting up the motor, cam, abutting frame, linkage block, rocker, first curved rod and second curved rod, during cleaning, the motor drives the cam to rotate, the cam abuts against the abutting frame, and the abutting frame drives the lifting rod to lift and lower reciprocally on the mounting block under force. While the cam rotates, the first curved rod drives the rocker to swing on the linkage block under force. When the rocker swings, it pulls or pushes the first cleaning plate through the second curved rod, thereby driving the cleaning plate to reciprocate and slide on the connecting block; realizing continuous rotation of the motor, driving the first cleaning plate to reciprocate and slide with a certain amplitude of lifting and lowering, while the second cleaning plate continuously reciprocates and lifts and lowers, which is convenient and fast to control and has a low implementation cost;

[0028] 3. By setting the extension plate, connecting bolts and connecting holes, rotating the connecting bolts and connecting the connecting bolts to different connecting holes, the position of the extension plate on the cam can be adjusted, thereby adjusting the diameter when the cam is connected to the first curved rod, controlling the swing range of the rocker, and adjusting the sliding range and frequency of the first cleaning plate on the connecting block, so that the device can be applied to different environments and improve the applicability of the device. Description of the Drawings

[0029] Figure 1 is a schematic diagram of a municipal road engineering maintenance device provided by an embodiment of the present application;

[0030] Figure 2 is a schematic diagram for embodying the linkage assembly in the embodiment of the present application;

[0031] Figure 3 is Figure 2 a partial enlarged schematic diagram of part A in

[0032] Figure 4 is a cross-sectional view for embodying the mounting block in the embodiment of the present application;

[0033] In the figure, 1, trolley; 11, moving wheels; 12, handrail; 2, mounting block; 21, lifting rod; 22, connecting block; 31, first cleaning plate; 32, second cleaning plate; 4, bristles; 41, dovetail block; 42, dovetail groove; 5, linkage assembly; 51, motor; 52, cam; 53, abutting frame; 54, linkage block; 55, rocker; 56, first curved rod; 57, second curved rod; 58, extension plate; 59, connecting bolt; 591, connecting hole; 6, side plate; 61, top plate; 611, guide wheel; 7, negative pressure chamber; 71, suction pump; 72, filter screen; 8, suction port; 81, suction hood; 9, cleaning port; 91, sealing plate; 92, lock. Detailed Description of the Embodiment

[0034] The following will Figure 1 - be described in Figure 4 further detail with reference to the attached drawings

[0035] An embodiment of the present application provides a municipal road engineering maintenance device. Referring to Figure 1 , it includes a trolley 1, moving wheels 11 and a handrail 12. The moving wheels 11 are arranged at the bottom of the trolley 1. The moving wheels 11 are universal wheels. The handrail 12 is fixedly arranged on the top of the trolley 1. The trolley 1 can be controlled to move by using the handrail 12 and the moving wheels 11. A mounting block 2 is welded and fixedly arranged on the end wall of the trolley 1. The mounting block 2 is located at one end of the trolley 1 away from the handrail 12. The length direction of the mounting block 2 is arranged along the width direction of the trolley 1.

[0036] Referring to Figure 1 and Figure 2, a lifting rod 21 is penetrated through the mounting block 2. The cross-section of the lifting rod 21 is in a certain direction. The lifting rod 21 is slidably arranged with the mounting block 2, and the lifting rod 21 can slide vertically on the mounting block 2. A connecting block 22 is fixedly arranged at the bottom end of the lifting rod 21. The connecting block 22 is arranged along the width direction of the mounting block 2. A first cleaning plate 31 is arranged at the bottom end of the connecting block 22. The first cleaning plate 31 is slidably connected with the connecting block 22, and the first cleaning plate 31 can slide along the length direction of the connecting block 22. A second cleaning plate 32 is fixedly arranged at one end of the connecting block 22 away from the trolley 1. The second cleaning plate 32 is arranged vertically. Brush hairs 4 are arranged on the lower surface of the first cleaning plate 31 and the side surface of the second cleaning plate 32. A linkage assembly 5 is arranged on the trolley 1. When using the device to clean and maintain the road, move the trolley 1 to make the brush hairs 4 on the second cleaning plate 32 abut against the wall on the side of the road, and then use the linkage assembly 5 to drive the lifting rod 21 to slide between the mounting block 2. When the lifting rod 21 reciprocates up and down, it drives the second cleaning plate 32 to reciprocate up and down, so that the brush hairs 4 on the second cleaning plate 32 can clean the wall; at the same time, the linkage assembly 5 drives the first cleaning plate 31 to reciprocate slidably with the connecting block 22. Since the lifting rod 21 will also drive the first cleaning plate 31 to move up and down, the first cleaning plate 31 can move vertically to a certain extent while reciprocatingly sliding, and the brush hairs 4 can lift the stains swept on the ground. The second cleaning plate 32 moves vertically, and the brush hairs 4 can clean the stains in the vertical gaps at the joints of the tiles on both sides of the road, thereby improving the cleaning effect of the device.

[0037] Refer to Figure 2 and Figure 3, the linkage assembly 5 includes a motor 51, a cam 52, a contact frame 53, a linkage block 54, a rocker 55, a first curved rod 56 and a second curved rod 57. The motor 51 is installed on the trolley 1, and the contact frame 53 is fixedly arranged at one end of the lifting rod 21 away from the connecting block 22. The cam 52 abuts against the drive shaft of the motor 51, and the cam 52 is located inside the contact frame 53 and abuts against the inner wall of the contact frame 53. The linkage block 54 is fixedly arranged on the trolley 1, and the rocker 55 is rotatably arranged on the side wall of the linkage block 54. One end of the first curved rod 56 is hinged to one end of the rocker 55, the other end of the first curved rod 56 is hinged to the cam 52, one end of the second curved rod 57 is hinged to the other end of the rocker 55, and the other end of the second curved rod 57 is hinged to the first cleaning plate 31. When the bristles 4 need to be cleaned, the motor 51 drives the cam 52 to rotate. The cam 52 abuts against the contact frame 53. As the cam 52 continues to rotate, the contact frame 53 is stressed to drive the lifting rod 21 to reciprocally lift and lower on the mounting block 2. At the same time, the first curved rod 56 is stressed to drive the rocker 55 to swing on the linkage block 54. When the rocker 55 swings, it pulls or pushes the first cleaning plate 31 through the second curved rod 57, thereby driving the cleaning plate to reciprocally slide at the bottom of the connecting block 22. It realizes the continuous rotation of the motor 51, drives the first cleaning plate 31 to reciprocally slide and lift with a certain amplitude, while the second cleaning plate 32 continuously reciprocally lifts and lowers. The control is convenient and fast, and the implementation cost of the device is low.

[0038] Refer to Figure 2 and Figure 3 , the linkage assembly 5 further includes an extension plate 58. The extension plate 58 is arranged on the end wall of the cam 52. One end of the first curved rod 56 away from the rocker 55 is hinged to the extension plate 58. A set of connecting bolts 59 is penetrated through the extension plate 58. There are several connecting holes 591 on the cam 52 for the connecting bolts 59 to be inserted. The connecting bolts 59 are threadedly connected with the connecting holes 591. By rotating the connecting bolts 59 and connecting the connecting bolts 59 with different connecting holes 591, the extension plate 58 can be installed on the cam 52. The extension plate 58 can increase the diameter when the cam 52 is connected to the first curved rod 56, control the swinging range of the rocker 55, and adjust the sliding range and frequency of the first cleaning plate 31 on the connecting block 22, so that the device can be applicable to various environments and improve the applicability of the device.

[0039] Refer to Figure 1 , the bristles 4 are arranged on the dovetail block 41. Dovetail grooves 42 for the dovetail block 41 to be inserted are opened on the end walls of the first cleaning plate 31 and the second cleaning plate 32. The dovetail grooves 42 on the first cleaning plate 31 and the second cleaning plate 32 are both arranged along the length direction of the mounting block 2. Through the interference fit between the dovetail block 41 and the dovetail groove 42, it is convenient to disassemble the bristles 4 for cleaning and replacement.

[0040] Refer to Figure 1, side plates 6 are fixedly arranged at both ends of the trolley 1. The side plates 6 are arranged vertically, and a top plate 61 is arranged between the tops of the side plates 6. A guide wheel 611 is rotatably arranged at one end of the side plate 6 away from the handrail 12, and the guide wheel 611 is arranged horizontally. When operating the trolley 1, move the trolley 1 to make the guide wheel 611 abut against the wall surface, and then use the guide wheel 611 for guiding, which is convenient for positioning the trolley 1 and making the trolley 1 move along the wall surface, facilitating the control of the trolley 1; at the same time, the side plates 6 and the top plate 61 can play a certain isolation role to reduce the diffusion of dust.

[0041] Refer to Figure 2 and Figure 4 , a negative pressure chamber 7 is arranged in the mounting block 2. An air suction pump 71 is installed on the trolley 1, and the air suction pump 71 is communicated with the negative pressure chamber 7. A filter screen 72 is arranged between the negative pressure chamber 7 and the air suction pump 71. A plurality of air suction ports 8 are penetrated through the side wall and the top wall of the mounting block 2, and the air suction ports 8 are communicated with the negative pressure chamber 7. An air suction hood 81 is arranged at the air suction port 8. When the brush hairs 4 are repeatedly cleaning, the air suction pump 71 is used to generate negative pressure in the negative pressure chamber 7. At this time, the dust and impurities generated by cleaning are sucked and can enter the negative pressure chamber 7 through the air suction port 8. The air suction hood 81 can increase the air suction range of the air suction port 8, and the filter screen 72 can filter the impurities in the negative pressure chamber 7, realizing the function of recycling the impurities generated by cleaning, reducing environmental pollution and facilitating garbage recycling.

[0042] Refer to Figure 4 , a cleaning port 9 is opened on the end wall of the mounting block 2. The cleaning port 9 is communicated with the negative pressure chamber 7. A sealing plate 91 is slidably arranged at the cleaning port 9, and a locking buckle 92 is arranged between the sealing plate 91 and the mounting block 2. Slide the sealing plate 91 to move the sealing plate 91 away from the cleaning port 9. The cleaning port 9 is used to facilitate the cleaning of the garbage recycled in the negative pressure chamber 7. After cleaning, slide the sealing plate 91 again and use the locking buckle 92 to fix the sealing plate 91 at the cleaning port 9. The sealing plate 91 can seal the cleaning port 9.

[0043] The implementation principle of the embodiment of the present application is:

[0044] When cleaning is required, hold the handrail 12 to operate the trolley 1, and make the guide wheel 611 on the side plate 6 of the trolley 1 abut against the side wall of the green belt wall, and use the moving wheel 11 and the guide wheel 611 to drive the trolley 1 to move along the wall; then turn on the motor 51, and the cam 52 is driven by the motor 51 to rotate, and the cam 52 is abutted against the abutment frame 53, driving the lifting rod 21 to reciprocate and lift on the mounting block 2, and driving the second cleaning plate 32 to reciprocate and lift, and at the same time, the cam 52 drives the rocker 55 to swing on the linkage block 54 through the first curved rod 56, and the rocker When the second cleaning plate 32 is swung, the second curved rod 57 is used to pull or push the first cleaning plate 31, thereby driving the cleaning plate to slide back and forth on the connecting block 22; since the second cleaning plate 32 moves in the vertical direction, the bristles 4 can clean the stains in the vertical gaps at the connection of the tiles on both sides of the road, and since the first cleaning plate 31 can also move vertically to a certain extent while sliding back and forth, the bristles 4 can carry away the stains cleaned on the ground, thereby improving the cleaning effect of the device. At the same time, the device has the advantages of low implementation cost, convenient control, and wide application range.

[0045] The embodiment of the present application also provides a maintenance method for a municipal road engineering maintenance device, which comprises the following steps:

[0046] The handrail 12 is operated, and the trolley 1 is moved by the moving wheel 11, so that the guide wheel 611 on the side plate 6 is against the side wall of the green belt wall, and the trolley 1 is moved along the wall by the moving wheel 11 and the guide wheel 611; at this time, the bristles 4 of the first cleaning plate 31 are against the ground, and the bristles 4 on the second cleaning plate 32 are against the wall; the motor 51 is turned on, and the motor 51 drives the cam 52 to rotate continuously, and the cam 52 is against the inner wall of the abutment frame 53, driving the lifting rod 21 to rise and fall repeatedly on the mounting block 2, and the lifting rod 21 drives the second cleaning plate 32 to rise and fall repeatedly through the connecting block 22, so that the bristles 4 on the second cleaning plate 32 repeatedly clean the gaps on the wall; the lifting rod 21 drives the rocker 55 to rotate through the first curved rod 56, and the rocker 55 pulls or pushes the first cleaning plate 31 through the second curved rod 57, so that the first cleaning plate 31 slides back and forth at the bottom end of the connecting block 22, so that the bristles 4 on the first cleaning plate 31 repeatedly clean the ground.

[0047] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A municipal road engineering maintenance device, comprising a trolley (1), moving wheels (11) and a handrail (12), the moving wheels (11) are arranged at the bottom of the trolley (1), and the handrail (12) is arranged at the top of the trolley (1), characterized in that, An installation block (2) is provided on the end wall of the trolley (1). A lifting rod (21) penetrates through the installation block (2), and the lifting rod (21) is slidably arranged with the installation block (2). A connecting block (22) is arranged at the bottom end of the lifting rod (21), and a first cleaning plate (31) is arranged at the bottom end of the connecting block (22). The first cleaning plate (31) is slidably connected with the connecting block (22). One end of the connecting block (22) away from the trolley (1) is provided with a second cleaning plate (32). The second cleaning plate (32) is arranged in the vertical direction. Brush hairs (4) are arranged on the surfaces of the first cleaning plate (31) and the second cleaning plate (32). A linkage assembly (5) is arranged on the trolley (1). The linkage assembly (5) is used for driving the lifting rod (21) to slide with the installation block (2) and at the same time driving the first cleaning plate (31) to slide with the connecting block (22).

2. The maintenance device for a municipal road project according to claim 1, characterized in that, The linkage assembly (5) includes a motor (51), a cam (52), a butting frame (53), a linkage block (54), a rocker (55), a first curved rod (56) and a second curved rod (57). The motor (51) is arranged on the trolley (1). The butting frame (53) is arranged at one end of the lifting rod (21) away from the connecting block (22). The cam (52) abuts against the driving shaft of the motor (51). The cam (52) is located in the butting frame (53) and abuts against the inner wall of the butting frame (53). The linkage block (54) is fixedly arranged on the trolley (1). The rocker (55) is rotatably arranged on the linkage block (54). One end of the first curved rod (56) is hinged to one end of the rocker (55), and the other end of the first curved rod (56) is hinged to the cam (52). One end of the second curved rod (57) is hinged to the other end of the rocker (55), and the other end of the second curved rod (57) is hinged to the first cleaning plate (31).

3. A municipal road engineering maintenance device according to claim 2, characterized in that, The linkage assembly (5) further includes an extended plate (58). The extended plate (58) is arranged on the surface of the cam (52). One end of the first curved rod (56) away from the rocker (55) is hinged to the extended plate (58).

4. A municipal road engineering maintenance device according to claim 3, characterized in that, A set of connecting bolts (59) penetrates through the extended plate (58). A plurality of connecting holes (591) for inserting the connecting bolts (59) are arranged on the cam (52). The connecting bolts (59) are threadedly connected with the connecting holes (591).

5. The maintenance device for a municipal road project according to claim 2, wherein Side plates (6) are arranged at both ends of the trolley (1). The two side plates (6) are located at both ends of the installation block (2). A top plate (61) is arranged between the top ends of the side plates (6). A guide wheel (611) is rotatably arranged at one end of the side plate (6) away from the handrail (12).

6. The maintenance device for a municipal road project according to claim 1, wherein, The brush hairs (4) are arranged on the dovetail blocks (41). Dovetail grooves (42) for inserting the dovetail blocks (41) are formed on the end walls of the first cleaning plate (31) and the second cleaning plate (32). The dovetail blocks (41) are in interference fit with the dovetail grooves (42).

7. A municipal road engineering maintenance device according to claim 1, characterized in that, A negative pressure chamber (7) is arranged inside the mounting block (2), an air suction pump (71) is arranged on the trolley (1), the air suction pump (71) is communicated with the negative pressure chamber (7), and a filter screen (72) is arranged between the negative pressure chamber (7) and the air suction pump (71); a plurality of air suction ports (8) are penetratingly arranged on the side wall and the top wall of the mounting block (2), the air suction ports (8) are communicated with the negative pressure chamber (7), and an air suction hood (81) is arranged at the air suction port (8).

8. The maintenance device for a municipal road project according to claim 7, wherein, A cleaning port (9) is formed in the end wall of the mounting block (2), a sealing plate (91) is slidably arranged at the cleaning port (9), the sealing plate (91) is used for sealing the cleaning port (9), a locking buckle (92) is arranged between the sealing plate (91) and the mounting block (2), and the locking buckle (92) is used for fixing the sealing plate (91) at the cleaning port (9).

9. A maintenance method for the municipal road engineering maintenance device according to claim 5, characterized in that, The method comprises the following steps: Operate the handrail (12), move the trolley (1) by using the moving wheels (11) so that the guide wheels (611) on the side plate (6) abut against the side wall of the green belt wall surface, and move the trolley (1) along the wall surface by using the moving wheels (11) and the guide wheels (611); at this time, the bristles (4) of the first cleaning plate (31) abut against the ground, and the bristles (4) of the second cleaning plate (32) abut against the wall surface; start the motor (51), the motor (51) drives the cam (52) to continuously rotate, the cam (52) abuts against the inner wall of the abutting frame (53), drives the lifting rod (21) to repeatedly lift on the mounting block (2), the lifting rod (21) drives the second cleaning plate (32) to repeatedly lift through the connecting block (22), so that the bristles (4) on the second cleaning plate (32) repeatedly clean the gaps on the wall surface; the lifting rod (21) drives the rocker (55) to rotate through the first curved rod (56), and the rocker (55) pulls or pushes the first cleaning plate (31) through the second curved rod (57), so that the first cleaning plate (31) reciprocally slides at the bottom end of the connecting block (22), so that the bristles (4) on the first cleaning plate (31) repeatedly clean the ground.

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