A road maintenance device

Abstract

The application discloses a road surface maintenance device and belongs to the technical field of road maintenance, which comprises a direction-changing frame module and a spraying module. The direction-changing frame module is rotatably arranged at the front end of a road surface maintenance vehicle, and the rotating direction of the direction-changing frame module is matched with the bending direction of the road. The direction-changing frame module is provided with the retractable spraying module. The retracting state of the spraying module is associated with the rotating direction of the direction-changing frame module, and the spraying pressure of the spraying module is related to the retracting amount. The rotating direction of the direction-changing frame module is adaptively adjusted, so that the spraying direction of the spraying module is adjusted. Meanwhile, the number of spraying holes is adaptively increased according to the steering angle, so that the spraying thickness of the device on the curved part of the road surface is ensured to be uniform, and the spraying effect is improved.

Description

Technical Field

[0001] This invention belongs to the field of road maintenance technology, specifically relating to a road surface maintenance device. Background Technology

[0002] Road maintenance is a key task to ensure road safety, extend service life, and improve traffic efficiency. It aims to repair existing damage, slow down the decline of road performance, and prevent serious defects. Asphalt pavement maintenance agent spraying is also one of the road maintenance solutions.

[0003] Chinese patent CN112095423B discloses a road surface protectant spraying device, including a drive base box, a handrail fixedly connected to the rear side of the drive base box, a storage box fixedly connected to the top of the drive base box, a feed inlet at the top of the storage box, a stirring mechanism inside the storage box, two front fixing pipes fixedly connected to the front side of the drive base box, and a spray hood fixedly connected to the side of the front fixing pipes away from the drive base box. The drive base box is equipped with a leveling mechanism and a pressing blower mechanism. This invention enables effective spraying of the road surface protectant by setting the spray hood, and the leveling mechanism can level the protectant material on the road surface after spraying, making the road surface smoother and the road surface protectant more evenly distributed. The pressing blower mechanism can blow air and press the road surface, thereby enabling efficient and rapid bonding between the road surface protectant and the road surface itself, resulting in good road maintenance effect.

[0004] While the aforementioned technical device can smooth out the protective agent on the road surface during road maintenance, in actual operation, especially on winding roads, the spraying vehicle needs to travel along the curves. Therefore, the amount of spraying on the inner and outer curves of the conventional spraying device is not equal, which can easily result in a thin coating on the outer curves and a thick coating on the inner curves, affecting the spraying quality. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a road maintenance device to solve the problems mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A road maintenance device includes a steering frame module and a spraying module. The steering frame module is rotatably mounted on the front end of a road maintenance vehicle, and the rotation direction of the steering frame module matches the curvature direction of the road. A retractable spraying module is provided on the steering frame module. The extension and retraction state of the spraying module is related to the rotation direction of the steering frame module, and the spraying pressure of the spraying module is related to its extension and retraction amount.

[0008] The spraying module includes a spraying assembly, which includes a main cylinder, an inner sliding cylinder, and an outer sliding cylinder. The main cylinder is fixedly mounted on the front end of the maintenance vehicle. Several sections of inner and outer sliding cylinders are provided at both ends of the main cylinder. The inner and outer sliding cylinders are spaced apart and are slidably fitted together. The inner sliding cylinder closer to the main cylinder is slidably inserted into the main cylinder.

[0009] As a further embodiment of the present invention, the reversing frame module includes a frame assembly, which includes a main frame, a plate frame, side supports, an adjustment frame, guide rails, a telescopic cylinder, and traction arms. One end of the main frame is fixedly mounted to the front end of the road maintenance vehicle, and the other end of the main frame is fixedly mounted to the plate frame. Side supports are fixedly arranged on both sides of the plate frame. The adjustment frame is slidably mounted on the side supports. Guide rails are also provided on the adjustment frame. The telescopic cylinder is fixedly mounted to the bottom of the plate frame. Two sets of traction arms are rotatably mounted at the end of the movable shaft of the telescopic cylinder. The ends of the traction arms are rotatably mounted on one side of the adjustment frame.

[0010] As a further embodiment of the present invention, the spraying assembly further includes a guide pipe, a driven wheel, a rotary sealing ring, and a drain pipe. The guide pipe is fixedly mounted on the main cylinder and connected to the main cylinder. The driven wheel is fixedly mounted on the outside of the guide pipe. One end of the rotary sealing ring is rotatably sleeved on the guide pipe, and the other end of the rotary sealing ring is connected to the drain pipe. The drain pipe is used to pump curing agent into the main cylinder.

[0011] As a further embodiment of the present invention, the spraying assembly further includes a first spraying hole, a second spraying hole, and a third spraying hole. The first spraying hole is disposed on the outer surface of the main cylinder, the second spraying hole is disposed on the outer surface of the inner sliding cylinder, and the third spraying hole is disposed on the outer surface of the outer sliding cylinder and located between the main cylinder and the inner sliding cylinder on adjacent sides. The first spraying hole and the second spraying hole thereon are staggered and located between the inner sliding cylinder and the outer sliding cylinder on adjacent sides. The second spraying hole and the third spraying hole thereon are staggered.

[0012] As a further embodiment of the present invention, the road maintenance device further includes an adjustment frame, which includes a main adjustment frame, a guide rod, a slider, a shaft head, and a linkage arm. The main adjustment frame is elastically slidably inserted into one end of the plate frame. A guide rod is fixedly installed on the main adjustment frame. Several sliders are slidably installed on the guide rod. A shaft head is fixedly connected to one end of the slider. Two sets of linkage arms are rotatably installed on the shaft head. The two sets of linkage arms are respectively rotatably assembled on the main cylinder and the inner sliding cylinder, as well as the inner sliding cylinder and the outer sliding cylinder on adjacent sides.

[0013] As a further embodiment of the present invention, the road maintenance device further includes a detection component, which includes a main shaft, a reversing shaft, a front reversing gear, a first rear reversing gear, and a second rear reversing gear. The main shaft is fixedly mounted on a plate frame, and the reversing shaft, the front reversing gear, the first rear reversing gear, and the second rear reversing gear are fixedly mounted on the main shaft. The front reversing gear is provided with opposing first ring teeth, and the first and second rear reversing gears are respectively provided with opposing second and third ring teeth.

[0014] As a further embodiment of the present invention, the detection assembly further includes a front transmission gear, a first rear transmission gear shaft, a second rear transmission gear shaft, a controller, a first control wheel, a second control wheel, a third control wheel, an adjusting motor, and a reversing shaft wheel. The front transmission gear is fixedly mounted on the plate frame, with one end movably connected to the first ring gear and the other end drivingly connected to the first control wheel. The controller is fixedly mounted on the plate frame, and the first control wheel, the second control wheel, and the third control wheel are rotatably mounted on the controller. The first and second rear transmission gear shafts are fixedly mounted on the plate frame, with one end movably connected to the second and third ring gears, respectively, and the other ends drivingly connected to the second and third control wheels, respectively. The adjusting motor is fixedly mounted on the plate frame, with one end electrically connected to the controller and the other end drivingly connected to the reversing shaft wheel. The reversing shaft wheel is drivingly connected to the driven wheel.

[0015] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art:

[0016] This invention adjusts the spraying direction of the spraying module by adaptively adjusting the rotation direction of the reversing frame module, and at the same time increases the number of spray holes according to the steering angle, thereby ensuring that the spraying thickness is consistent in the curved part of the road surface, thus improving the spraying effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the road maintenance device provided in one embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the road maintenance device provided in one embodiment of the present invention from another perspective.

[0019] Figure 3 for Figure 2 Enlarged schematic diagram of reference numeral A in the attached figure.

[0020] Figure 4 for Figure 2 Enlarged schematic diagram of reference numeral B in the attached figure.

[0021] Figure 5 This is a schematic diagram of the road maintenance device provided in one embodiment of the present invention from another perspective.

[0022] Figure 6 for Figure 5 Enlarged schematic diagram of the figure marked C in the attached diagram.

[0023] Figure 7 This is a schematic diagram of the bottom structure of a road maintenance device provided in one embodiment of the present invention.

[0024] Figure 8 for Figure 7 Enlarged schematic diagram of reference numeral D in the attached figure.

[0025] Reference numerals: 1-Frame assembly, 101-Main frame, 102-Plate frame, 103-Side support, 104-Adjustment frame, 105-Guide rail, 106-Telescopic cylinder, 107-Traction arm, 2-Injection assembly, 201-Main cylinder, 202-Guide pipe, 203-Driven wheel, 204-Rotary seal ring, 205-Drain pipe, 206-First injection hole, 207-Inner sliding cylinder, 208-Second injection hole, 209-Outer sliding cylinder, 210-Third injection hole, 211-Side connecting frame, 212-Side slider, 3-Adjustment frame, 30 1-Main adjusting frame, 302-Guide rod, 303-Slider, 304-Shaft head, 305-Linkage arm, 4-Detection component, 401-Main shaft, 402-Reversing shaft, 403-Front reversing gear, 404-Front transmission gear, 405-First rear reversing gear, 406-Second rear reversing gear, 407-First rear transmission gear shaft, 408-Second rear transmission gear shaft, 409-Controller, 410-First control wheel, 411-Second control wheel, 412-Third control wheel, 413-Adjusting motor, 414-Reversing shaft wheel. Detailed Implementation

[0026] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Please see Figures 1-8According to one embodiment of the present invention, a road maintenance device has a first direction x, a second direction y, and a third direction z. The road maintenance device includes a steering frame module and a spraying module. The steering frame module is rotatably mounted on the front end of a road maintenance vehicle, and the rotation direction of the steering frame module matches the curvature direction of the road. A retractable spraying module is provided on the steering frame module, and the extension / retraction state of the spraying module is related to the rotation direction of the steering frame module, and the spraying pressure of the spraying module is related to its extension / retraction amount. Related; the spraying module includes a spraying assembly 2, which includes a main cylinder 201, an inner sliding cylinder 207, and an outer sliding cylinder 209. The main cylinder 201 is fixedly mounted on the front end of the maintenance vehicle. Several sections of inner sliding cylinder 207 and outer sliding cylinder 209 are provided at both ends of the main cylinder 201. The inner sliding cylinder 207 and outer sliding cylinder 209 are spaced apart and are slidably fitted together. The inner sliding cylinder 207 on the side closer to the main cylinder 201 is slidably inserted into the main cylinder 201.

[0028] In practical application, this road maintenance device consists of a steering frame module and a spraying module. The steering frame module is rotatably mounted on the front side of the road maintenance vehicle, and its rotation direction is related to the curvature direction of the current road side. When the maintenance agent is sprayed through the spraying module, the steering frame module adaptively adjusts its spraying direction according to the road curvature. During the adjustment process, the extension and retraction of the spraying module changes synchronously. Based on the extension and retraction of the extension and retraction module, the number of spray holes can be further adjusted so that the spraying pressure at the spray hole end is adaptively adjusted when the pump pressure is constant, thereby ensuring uniform spraying of the maintenance agent at the road curvature and improving the utilization rate of the maintenance agent.

[0029] Please see Figure 1 and Figure 2 In a preferred embodiment of the present invention, the reversing frame module includes a frame assembly 1, which includes a main frame 101, a plate frame 102, side supports 103, an adjustment frame 104, a guide rail 105, a telescopic cylinder 106, and a traction arm 107. One end of the main frame 101 is fixedly mounted to the front end of a road maintenance vehicle, and the other end of the main frame 101 is fixedly mounted to the plate frame 102. Side supports 103 are fixedly arranged on both sides of the plate frame 102. The adjustment frame 104 is slidably mounted on the side supports 103. The adjustment frame 104 is also provided with a guide rail 105. The telescopic cylinder 106 is fixedly mounted to the bottom of the plate frame 102. Two sets of traction arms 107 are rotatably mounted at the end of the movable shaft of the telescopic cylinder 106. The ends of the traction arms 107 are rotatably mounted on one side of the adjustment frame 104.

[0030] In practical application, the main frame 101 is fixedly mounted on the front end of the road maintenance vehicle. During the vehicle's operation, the telescopic cylinder 106 located at the bottom of the frame 102 drives the movable shaft on it to extend and retract. During the movement of the movable shaft on one side of the telescopic cylinder 106, the traction arm 107 is synchronously pulled to move in the xoy plane. Since the end of the traction arm 107 is rotatably mounted on the adjustment frame 104, the movable shaft of the telescopic cylinder 106 synchronously pulls the adjustment frame 104 to slide on the side support 103 during the movement. This controls the two sets of adjustment frames 104 to extend and retract in opposite directions in the second y direction, thereby adjusting the distance between the two sets of adjustment frames 104. This allows the spraying module, which is movably mounted between the two sets of adjustment frames 104, to synchronously adjust its spraying area according to the road width.

[0031] Please see Figure 3 and Figure 6 In a preferred embodiment of the present invention, the spraying assembly 2 further includes a guide pipe 202, a driven wheel 203, a rotary sealing ring 204, and a drain pipe 205. The guide pipe 202 is fixedly disposed on the main cylinder 201 and communicates with the main cylinder 201. The driven wheel 203 is fixedly assembled on the outside of the guide pipe 202. One end of the rotary sealing ring 204 is rotatably sleeved on the guide pipe 202, and the other end of the rotary sealing ring 204 is connected to the drain pipe 205. The drain pipe 205 is used to deliver curing agent into the main cylinder 201.

[0032] In practical application, the guide pipe 202 is fixedly mounted on the main cylinder 201. A driven wheel 203 is fixedly provided at the outer diameter end of the guide pipe 202. The rotary sealing ring 204 is rotatably mounted on the guide pipe 202 through a rotary sealing structure, and a curing agent is pumped into the main cylinder 201 through the drainage pipe 205 at one end of the ring. This ensures that the drainage pipe 205 remains in communication with the main cylinder 201 when the main cylinder 201 rotates in the xoy plane.

[0033] Furthermore, the spray assembly 2 also includes a first spray hole 206, a second spray hole 208, a third spray hole 210, and a side bracket 211. The first spray hole 206 is disposed on the outer surface of the main cylinder 201, the second spray hole 208 is disposed on the outer surface of the inner sliding cylinder 207, and the third spray hole 210 is disposed on the outer surface of the outer sliding cylinder 209. The first spray hole 206 and the second spray hole 208 on the main cylinder 201 and the inner sliding cylinder 207 are staggered. The second spray hole 206 is disposed on the inner sliding cylinder 207 and the outer sliding cylinder 209, which are slidably connected. The first injection hole 206, the second injection hole 208, and the third injection hole 210 are misaligned. The first injection hole 206, the second injection hole 208, and the third injection hole 210 are respectively located on the shell surfaces of the main cylinder 201, the inner sliding cylinder 207, and the outer sliding cylinder 209. Furthermore, the first injection hole 206 and the second injection hole 208, as well as the second injection hole 208 and the third injection hole 210, are all misaligned. This allows the inner sliding cylinder 207 to slide and retract into the main cylinder 201. Simultaneously, the first injection hole 206 at one end of the main cylinder 201 is slidably blocked by the shell of the inner sliding cylinder 207, while the inner sliding cylinder 207... The second spray hole 208 on the inner sliding cylinder 207 is simultaneously blocked by the main cylinder 201, thereby reducing the number of first spray holes 206 and second spray holes 208 on the main cylinder 201 and inner sliding cylinder 207. Similarly, when the inner sliding cylinder 207 slides and retracts into the outer sliding cylinder 209, the third spray hole 210 at one end of the outer sliding cylinder 209 is slidably blocked by the shell of the inner sliding cylinder 207, and at the same time, the second spray hole 208 on the inner sliding cylinder 207 is simultaneously blocked by the shell of the outer sliding cylinder 209, thereby reducing the number of first spray holes 206 and second spray holes 208 on the outer sliding cylinder 209 and inner sliding cylinder 207. The number of the third spray hole 210 and the second spray hole 208 of the curing agent is reduced so that the number of effective spray holes is changed synchronously during the sliding extension and retraction of the inner sliding cylinder 207 and the outer sliding cylinder 209. This allows the pressure on the sides of the several orifices to be adjusted synchronously when the pumping pressure on the side of the drainage pipe 205 is constant, thereby adjusting the spray pressure on the side of the spray hole in real time. A side bracket 211 is fixedly connected to one side of the outer sliding cylinder 209 at the end. A side slider 212 is rotatably connected to the end of the side bracket 211. The side slider 212 is limited and slidably mounted on the guide rail 105.

[0034] Please see Figure 1 , Figure 2 and Figure 3In a preferred embodiment of the present invention, the road maintenance device further includes an adjustment frame 3, which includes a main adjustment frame 301, a guide rod 302, a slider 303, a shaft head 304, and a linkage arm 305. The main adjustment frame 301 is elastically slidably inserted into one end of the plate frame 102. The guide rod 302 is fixedly installed on the main adjustment frame 301. A plurality of sliders 303 are slidably installed on the guide rod 302. One end of the slider 303 is fixedly connected to a shaft head 304. Two sets of linkage arms 305 are rotatably installed on the shaft head 304. The two sets of linkage arms 305 are respectively rotatably assembled on the slidingly connected main cylinder 201 and inner sliding cylinder 207, and the inner sliding cylinder 207 and outer sliding cylinder 209.

[0035] In practical application, the main adjusting frame 301 is elastically slidably inserted into the plate frame 102. A guide rod 302 is fixedly mounted on the main adjusting frame 301. Several sliders 303 are slidably mounted on the guide rod 302. Two sets of linkage arms 305 are rotatably mounted on the shaft head 304 at one end of each slider 303. One set of linkage arms 305 on the slider 303 near the middle of the guide rod 302 is rotatably connected to the main cylinder 201, and the other set of linkage arms 305 is rotatably connected to the slider slidably connected to the main cylinder 201. On the inner sliding cylinder 207, the remaining sliders 303, which are set on the guide rod 302, have two sets of linkage arms 305. One set of linkage arms 305 is rotatably connected to the inner sliding cylinder 207, and the other set of linkage arms 305 is rotatably connected to the outer sliding cylinder 209. This allows the main adjusting frame 301 to pull the guide rod 302 to move in the first direction x, and the sliders 303 to move synchronously in the first direction x. This, in turn, synchronously adjusts the extension and retraction of the inner sliding cylinder 207 and the outer sliding cylinder 209 in the second direction y to control the number of injection holes.

[0036] Please see Figure 8 In a preferred embodiment of the present invention, the road maintenance device further includes a detection component 4, which includes a main shaft 401, a reversing shaft 402, a front reversing gear 403, a front transmission gear 404, a first rear reversing gear 405, and a second rear reversing gear 406. The main shaft 401 is fixedly mounted on the plate frame 102. The reversing shaft 402, the front reversing gear 403, the first rear reversing gear 405, and the second rear reversing gear 406 are fixedly mounted on the main shaft 401. The front reversing gear 403 is provided with a first ring tooth a1, and the first rear reversing gear 405 and the second rear reversing gear 406 are respectively provided with a second ring tooth a2 and a third ring tooth a3.

[0037] In practical application, the main shaft 401 is fixedly mounted on the plate frame 102, and a reversing shaft 402, a front reversing gear 403, a first rear reversing gear 405, and a second rear reversing gear 406 are fixedly mounted on the main shaft 401. The reversing shaft 402 is located at the top of the main shaft 401 so that when the reversing shaft 402 rotates in conjunction with the drive vehicle, the rotation of the reversing shaft 402 drives the main shaft 401 to rotate as a whole. The front reversing gear 403, the first rear reversing gear 405, and the second rear reversing gear 406 are respectively provided with a first ring tooth a1, a second ring tooth a2, and a third ring tooth a3 on one side. The first ring tooth a1, the second ring tooth a2, and the third ring tooth a3 are misaligned in the xoy plane. During the process of the first ring tooth a1 meshing with the front drive gear 404, the second ring tooth a2 and the third ring tooth a3 are engaged. a3 is not engaged with the first rear transmission gear shaft 407 and the second rear transmission gear shaft 408. When the first ring tooth a1 rotates clockwise to its limit position, the tooth groove of the first ring tooth a1 and the front transmission gear 404 disengages, so that the third ring tooth a3 engages with the second rear transmission gear shaft 408 during clockwise rotation. When the first ring tooth a1 rotates counterclockwise to its limit position, the tooth groove of the first ring tooth a1 and the front transmission gear 404 disengages, so that the second ring tooth a2 engages with the first rear transmission gear shaft 407 during counterclockwise rotation. Thus, when the main shaft 401 rotates to different positions, the rotation direction and rotation angle of the front transmission gear 404, the first rear transmission gear shaft 407 and the second rear transmission gear shaft 408 are controlled by the first ring tooth a1, the second ring tooth a2 and the third ring tooth a3, respectively.

[0038] Please see Figure 4 and Figure 8In a preferred embodiment of the present invention, the detection component 4 further includes a front transmission gear 404, a first rear transmission gear shaft 407, a second rear transmission gear shaft 408, a controller 409, a first control wheel 410, a second control wheel 411, a third control wheel 412, an adjusting motor 413, and a reversing shaft wheel 414. The front transmission gear 404 is fixedly mounted on the plate frame 102. One end of the front transmission gear 404 is movably connected to the first ring gear a1, and the other end of the front transmission gear 404 is connected to the first control wheel 410. The controller 409 is fixedly mounted on the plate frame 102, and the first control wheel 410 and the second control wheel 411 are rotatably mounted on the controller 409. 1 and the third control wheel 412, the first rear transmission gear shaft 407 and the second rear transmission gear shaft 408 are fixedly mounted on the plate frame 102, one end of the first rear transmission gear shaft 407 and the second rear transmission gear shaft 408 are movably connected to the second ring gear a2 and the third ring gear a3 respectively, and the other end of the first rear transmission gear shaft 407 and the second rear transmission gear shaft 408 are drivenly connected to the second control wheel 411 and the third control wheel 412 respectively. The adjusting motor 413 is fixedly mounted on the plate frame 102, and one end of the adjusting motor 413 is electrically connected to the controller 409. The other end of the adjusting motor 413 is drivenly connected to the reversing shaft wheel 414. The reversing shaft wheel 414 is drivenly connected to the driven wheel 203.

[0039] In practical application, the first control wheel 410, the second control wheel 411, and the third control wheel 412 are rotatably mounted on the controller 409. These wheels are respectively connected to the front transmission gear 404, the first rear transmission gear shaft 407, and the second rear transmission gear shaft 408. The controller 409 is electrically connected to the regulating motor 413. By controlling the rotation direction and angle of the first control wheel 410, the second control wheel 411, and the third control wheel 412, the rotation speed and angle of the regulating motor 413 can be controlled according to the rotation angle of the control wheels, thereby synchronously adjusting the rotation direction and angle of the main cylinder 201. Since a side coupling is fixedly mounted on the outer sliding cylinder 209 located at the very end... The side slider 212 is rotatably connected to the side frame 211 at one end, and slidably mounted on the guide rail 105 at the other end. Therefore, when the main cylinder 201 rotates, the side slider 212 slides synchronously on the guide rail 105, thereby pulling several inner sliding cylinders 207 and outer sliding cylinders 209 to extend and retract synchronously. The main cylinder 201, inner sliding cylinders 207 and outer sliding cylinders 209 are movably connected by several sliders 303. Therefore, when the main cylinder 201 rotates in the xoy plane, the inner sliding cylinders 207 and outer sliding cylinders 209 synchronously adjust the orientation of their second spray hole 208 and third spray hole 210 during the extension and retraction process, and synchronously adjust the number of spray holes according to the extension and retraction amount, thereby changing the spray pressure at the spray hole position and avoiding excessive waste of curing agent.

[0040] The above embodiments of the present invention provide a road maintenance device that adjusts the spraying direction of the spraying module by adaptively adjusting the rotation direction of the reversing frame module, and at the same time increases the number of spraying holes according to the turning angle, thereby ensuring that the spraying thickness of the device is consistent in the curved part of the road surface, thereby improving the spraying effect.

[0041] 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, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A road surface maintenance device having a first direction x, a second direction y, and a third direction z, which are opposite in a spatial direction coordinate system, characterized by, The road surface maintenance device comprises: A turning frame module is rotatably arranged at the front end of the road surface maintenance vehicle, and the turning direction of the turning frame module matches the bending direction of the road. A telescopic spraying module is arranged on the turning frame module. The telescopic state of the spraying module is associated with the turning direction of the turning frame module, and the spraying pressure of the spraying module is associated with the telescopic amount thereof. The spraying module comprises a spraying assembly, which comprises a main cylinder, an inner sliding cylinder and an outer sliding cylinder. The main cylinder is fixedly arranged at the front end of the road surface maintenance vehicle. A plurality of inner sliding cylinders and outer sliding cylinders are arranged at both ends of the main cylinder. The inner sliding cylinders and the outer sliding cylinders are arranged at intervals and are limitingly and slidably arranged between the inner sliding cylinders and the outer sliding cylinders. The inner sliding cylinder close to the main cylinder is limitingly and slidably arranged in the main cylinder. The turning frame module comprises a frame assembly, which comprises a main frame, a plate frame, a side support, a position adjusting frame, a guide rail, a telescopic cylinder and a traction arm. One end of the main frame is fixedly arranged at the front end of the road surface maintenance vehicle. The other end of the main frame is fixedly arranged with the plate frame. The plate frame is fixedly arranged with side supports on both sides thereof. The position adjusting frame is slidably arranged on the side supports. The position adjusting frame is further arranged with a guide rail. The outer sliding cylinder at the end side is fixedly connected with a side connecting frame. A side sliding block is rotatably connected at the end of the side connecting frame. The side sliding block is limitingly and slidably arranged on the guide rail. The spraying assembly further comprises a flow guide pipe, a driven wheel, a rotary sealing ring and a drainage pipe. The flow guide pipe is fixedly arranged on the main cylinder and is in communication with the main cylinder. The driven wheel is fixedly arranged outside the flow guide pipe. The spraying assembly further comprises a first spraying hole, a second spraying hole and a third spraying hole. The first spraying hole is arranged on the outer surface of the main cylinder. The second spraying hole is arranged on the outer surface of the inner sliding cylinder. The third spraying hole is arranged on the outer surface of the outer sliding cylinder and is located between the main cylinder and the inner sliding cylinder at the adjacent side. The first spraying hole and the second spraying hole are arranged at a position offset from each other. The second spraying hole and the third spraying hole are arranged at a position offset from each other between the inner sliding cylinder and the outer sliding cylinder at the adjacent side. The road surface maintenance device further comprises a detection assembly, which comprises a main shaft, a reversing shaft, a front side turning gear, a first rear side turning gear and a second rear side turning gear. The main shaft is fixedly arranged on the plate frame. The main shaft is fixedly arranged with the reversing shaft, the front side turning gear, the first rear side turning gear and the second rear side turning gear. The front side turning gear is arranged with opposite first ring teeth. The first rear side turning gear and the second rear side turning gear are respectively arranged with opposite second ring teeth and third ring teeth. The first ring teeth, the second ring teeth and the third ring teeth are arranged at a position offset from each other in the xoy plane. The detection assembly further comprises a front transmission gear, a first rear transmission gear shaft, a second rear transmission gear shaft, a controller, a first control wheel, a second control wheel, a third control wheel, an adjusting motor and a reversing shaft wheel, the front transmission gear is fixedly arranged on the frame, one end of the front transmission gear is movably connected with the first ring gear, the other end of the front transmission gear is in transmission connection with the first control wheel, the controller is fixedly arranged on the frame, the first control wheel, the second control wheel and the third control wheel are rotatably arranged on the controller, the first rear transmission gear shaft and the second rear transmission gear shaft are fixedly arranged on the frame, one end of the first rear transmission gear shaft and one end of the second rear transmission gear shaft are movably connected with the second ring gear and the third ring gear respectively, the other end of the first rear transmission gear shaft and the other end of the second rear transmission gear shaft are in transmission connection with the second control wheel and the third control wheel respectively, the adjusting motor is fixedly arranged on the frame, one end of the adjusting motor is electrically connected with the controller, the other end of the adjusting motor is in transmission connection with the reversing shaft wheel, and the reversing shaft wheel is in transmission connection with the driven wheel.

2. A road maintenance device according to claim 1, characterised in that The telescopic air cylinder is fixedly arranged at the bottom of the frame, and two groups of traction arms are rotatably arranged at the end of the movable shaft of the telescopic air cylinder.

3. A road maintenance device according to claim 1, wherein One end of the rotating sealing ring is rotatably sleeved on the flow guide pipe, and the other end of the rotating sealing ring is communicated with a drainage pipe, and the drainage pipe is used for pumping the maintenance agent into the main cylinder.

4. A road maintenance device according to claim 1, wherein The road surface maintenance device further comprises an adjusting assembly, the adjusting assembly comprises a main adjusting frame, a guide rod, a sliding block, a shaft head and a linkage arm, the main adjusting frame is elastically and slidably inserted into one end of the frame, the guide rod is fixedly arranged on the main adjusting frame, a plurality of sliding blocks are slidably arranged on the guide rod, the shaft head is fixedly connected to one end of the sliding block, and two groups of linkage arms are rotatably installed on the shaft head, and the two groups of linkage arms are rotatably arranged on the adjacent main cylinder, the inner sliding cylinder and the outer sliding cylinder.

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