A pavement damage detection device

Abstract

The present invention provides a road surface damage detection device, belonging to the technical field of detection equipment. The road surface damage detection device provided by the present invention comprises a vehicle body, a circulating transmission mechanism, a circulating slide rail, a detection component, a driving component, and a control component. The circulating transmission mechanism is arranged at the bottom of the vehicle body. The circulating transmission mechanism is a chain transmission structure, and the center line connecting the centers of the two sprockets is perpendicular to the traveling direction of the vehicle body. The circulating slide rail is arranged at the bottom of the vehicle body. The circulating slide rail has the same shape as the chain and is arranged around the chain. A plurality of mounting plates are slidably arranged on the circulating slide rail, and the mounting plates are connected to the chain. The detection component is connected to the mounting plate. The driving component is connected to one of the sprockets. The control component is used for receiving the information transmitted by the detection component, analyzing the road surface defects, and controlling the driving component to drive the chain to move. The present invention realizes the automatic detection of the road surface condition through the transformation of the vehicle body, expands the detection area, and improves the detection efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of detection equipment, and more specifically, relates to a road surface damage detection device. Background Art

[0002] With the development of the times, highways in China are crisscrossed and extend in all directions, providing great convenience for passenger transportation and logistics. However, after long-term use, cracks, bulges, collapses and other damages and defects are inevitable on the highways. These road surface damages and defects will threaten people's driving safety. Therefore, highways need regular inspection and maintenance. The existing road surface defect detection methods are still mostly traditional manual regular inspection methods, with low detection efficiency and insufficient manpower, and cannot meet the detection requirements of large-scale urban road surfaces. Summary of the Invention

[0003] The purpose of the present invention is to provide a road surface damage detection device to solve the technical problems in the existing technology that still mostly use manual regular inspection methods to detect road surface defects, with low detection efficiency and inability to meet the detection requirements of large-scale road surfaces.

[0004] To achieve the above object, the technical solution adopted by the present invention is: to provide a road surface damage detection device, including a vehicle body, a circulating transmission mechanism, a circulating slide rail, a detection component, a driving component, and a control component. The circulating transmission mechanism is arranged at the bottom of the vehicle body. The circulating transmission mechanism is a chain transmission structure. Two sprockets of the circulating transmission mechanism are rotatably connected to the vehicle body. The center line connecting the two sprockets is perpendicular to the traveling direction of the vehicle body. The chain of the circulating transmission mechanism is chain-drivenly connected to the two sprockets. The circulating slide rail is arranged at the bottom of the vehicle body. The circulating slide rail has the same shape as the chain and is arranged around the chain. A plurality of mounting plates are slidably arranged on the circulating slide rail, and the mounting plates are connected to the chain. The detection component is connected to the mounting plate and is used for detecting the road surface. The driving component is connected to one of the sprockets and is used for driving the chain to move and driving the mounting plate to slide along the circulating slide rail. The control component is electrically connected to the detection component and the driving component and is used for receiving the information transmitted by the detection component, analyzing road surface defects, and controlling the driving component to drive the chain to move.

[0005] Combined with the above technical solution, in a possible implementation manner, a road surface damage detection device further includes a protection mechanism. The protection mechanism includes a protection shell. The protection shell is connected to the mounting plate. The inside of the protection shell is a hollow structure. The detection component is located inside the protection shell. A detection window is opened on the protection shell. The detection component detects the road surface condition through the detection window. A sliding rod is frictionally slidably arranged inside the protection shell. The moving direction of the sliding rod is the same as the traveling direction of the vehicle body. Both ends of the sliding rod extend out of the protection shell. Protection plates are arranged at both ends of the sliding rod. Collision sensing elements are buried inside the protection plates. The collision sensing elements are connected to the control component.

[0006] Combined with the above technical solution, in a possible implementation, the bottom of the protective shell is arc-shaped, the detection window is opened on the arc-shaped bottom of the protective shell, arc-shaped slideways are provided on two opposite inner walls of the protective shell, the arc-shaped slideways are located on the left and right sides of the arc-shaped bottom of the protective shell, arc-shaped guard plates are slidably arranged in the arc-shaped slideways, the arc-shaped guard plates can slide along the arc-shaped slideways to close or open the detection window, and a release assembly is arranged in the protective shell, and the release assembly is used to control the arc-shaped guard plates to open or close the detection window.

[0007] Combined with the above technical solution, in a possible implementation, the sliding rod is a rack, two arc-shaped guard plates are slidably arranged on the arc-shaped slideway, a limiting rod is arranged on the arc-shaped guard plate, two sets of release assemblies are arranged, and both sets of release assemblies are in transmission connection with the sliding rod. When the detection window is opened, the two sets of release assemblies are respectively in contact with the two limiting rods, and the two arc-shaped guard plates are respectively limited in front of and behind the detection window; when the sliding rod moves under impact, one of the release assemblies is separated from the limiting rod, and the arc-shaped guard plate slides under the action of gravity to close the detection window.

[0008] Combined with the above technical solution, in a possible implementation, the release assembly includes a limiting claw, a spring piece, a first gear, a second gear, and a third gear. The limiting claw is rotatably arranged in the protective shell, and a transmission rod is rotatably arranged on the limiting claw; one end of the spring piece is fixed in the protective shell through a fixed seat, and the other end is freely released. The spring piece is in contact with the limiting claw and is used to push the limiting claw to contact the limiting rod and prevent the limiting claw from rotating to release the arc-shaped guard plate, so that the arc-shaped guard plate is stationary in front of or behind the detection window; the first gear is meshed with the sliding rod; the second gear is coaxially connected with the first gear through a one-way bearing, and the one-way bearing is used to control the second gear to only rotate around one direction along with the first gear; the third gear is rotatably arranged in the protective shell and is meshed with the second gear. A dial rod is arranged on the third gear, the dial rod is arranged along the radial direction of the third gear, and the dial rod is in contact with the transmission rod. When the third gear rotates, the dial rod pushes the limiting claw to rotate through the transmission rod to release the arc-shaped guard plate.

[0009] Combined with the above technical solution, in a possible implementation, the protective shell is a hollow structure, detection windows are opened on both sides of the protective shell, the two detection windows are opposite to each other, the detection component is located between the two detection windows, a guiding notch is arranged on each of the upper part and the lower part of the two detection windows of the protective shell, an arc-shaped guiding slideway is arranged in the protective shell, an arc-shaped baffle is slidably arranged in the arc-shaped guiding slideway, both ends of the arc-shaped baffle can extend out of the protective shell through the two guiding notches respectively, a linkage plate is rotatably arranged in the middle of the lower end of the arc-shaped baffle, the linkage plate is in a vertical state under the action of gravity, a guide rail is fixedly arranged in the protective shell, the length direction of the guide rail is parallel to the length direction of the sliding rod, a U-shaped block is slidably arranged on the guide rail, the linkage plate is inserted into the U-shaped groove formed by the U-shaped block, and a pushing component is further arranged in the protective shell, and the pushing component is used to push the U-shaped block to slide along the guide rail and drive the arc-shaped baffle to extend out of the protective shell.

[0010] Combined with the above technical solution, in a possible implementation, there are two guide rails, and the two guide rails are arranged in parallel at intervals. The U-shaped block is slidably arranged on the two guide rails. The pushing component includes two sliders, two guide plates, two groups of ejection springs, two groups of hooking parts and a release part. The two sliders are slidably arranged on the two guide rails. The two sliders are respectively located on both sides of the U-shaped block and are in contact with the U-shaped block. The two guide plates have the freedom to move up and down. Along the length direction of the guide rails, the two guide plates are respectively located outside the two sliders. The guide plates are located below the two guide rails. A pressing block is arranged in the middle of the guide plate. The pressing block is located between the two guide rails. Two hanging parts are also arranged on the guide plate. The two hanging parts are symmetrically arranged on both sides of the pressing block respectively. The two groups of ejection springs are respectively connected to the two pressing blocks and are in a compressed state between the pressing block and the slider on the same side. Each group of hooking parts includes two hanging components. The two hanging components in the same group are respectively hooked to the two hanging parts on the same guide plate. The hooking part is used to fix the guide plate at a set height to keep the ejection spring capable of pressing between the slider and the pressing block. The release part is used to control one group of hooking parts to release the hanging part, so that the pressing block and the ejection spring on the same side as the hanging part fall under the action of gravity, and the arc-shaped baffle extends out of the protective shell under the action of the elastic force of the ejection spring on the other side.

[0011] Combined with the above technical solution, in a possible implementation, hanging holes are arranged on the outer sides of the hanging parts. The hanging component includes a hook, a fixing plate and a clamping spring. The middle of the hook is rotatably connected to the protective shell. A hook is arranged beside the hanging hole of each hanging part. The hook is used to hook the hanging hole. A fixing plate is arranged beside each hook. The fixing plate is connected to the protective shell. One end of the clamping spring is connected to the fixing plate, and the other end is connected to the hook. The clamping spring is used to pull the hook to rotate and hook the hanging part tightly.

[0012] Combined with the above technical solution, in a possible implementation, there are two sliding rods, and the two sliding rods are arranged at intervals. The ends on the same side of the two sliding rods are connected by the same protective plate. The release part includes four pushing blocks. Two pushing blocks are arranged on each sliding rod. The two hooks on the same side of the sliding rod are arranged between the two pushing blocks on the sliding rod. The pushing block is used to push the hook to rotate and disengage from the hanging connection with the hanging part when passing by the hook.

[0013] Combined with the above technical solution, in a possible implementation, a buffer spring is arranged below the guide plate inside the protective shell.

[0014] The beneficial effects of a road surface damage detection device provided by the present invention are as follows: Compared with the prior art, the present invention modifies the existing vehicle body, sets a circulating transmission mechanism at the bottom of the vehicle body. The circulating transmission mechanism is a chain transmission structure. The connecting line of the centers of the two sprockets of the circulating transmission mechanism is perpendicular to the traveling direction of the vehicle body. A circulating slide rail is arranged outside the chain of the circulating transmission mechanism. The circulating slide rail is connected to the bottom of the vehicle body and has the same shape as the chain. A plurality of mounting plates are slidably arranged on the circulating slide rail, and the mounting plates are connected to the chain. A detection component is arranged on the mounting plate. The detection component can detect the road surface when the vehicle body is traveling. At the same time, the driving component is connected to one of the sprockets of the circulating transmission mechanism. When detection is required, the driving component can drive the chain to move, driving the detection component on the mounting plate to move horizontally perpendicular to the moving direction of the vehicle body, increasing the movement freedom of the detection component and expanding the detection area. A control component is arranged inside the vehicle body. The control component is electrically connected to the detection component, can receive the data of the detection component, and analyze the road surface defects. By modifying the vehicle body, the present invention realizes the automatic detection of the road surface condition. At the same time, through the design, the detection range of the detection component is increased, the detection area is expanded, and the detection efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the use of a road surface damage detection device provided by an embodiment of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the protection mechanism adopted by an embodiment of the present invention;

[0018] Figure 3 is Figure 2 a schematic diagram of the internal structure of the protection mechanism shown;

[0019] Figure 4 is Figure 2 a schematic diagram of the internal structure of the protection mechanism shown from another angle;

[0020] Figure 5 It is a schematic diagram of the structure of the protection mechanism adopted by another embodiment of the present invention;

[0021] Figure 6 is Figure 5 a schematic diagram of the internal structure of the protection mechanism shown;

[0022] Figure 7 is Figure 6Front view;

[0023] Figure 8 is Figure 5 Schematic structural diagram of the pushing mechanism adopted by the embodiment shown.

[0024] Among them, the reference numerals in the figure are as follows:

[0025] 1, vehicle body; 2, circulating slide rail; 3, detection component; 4, mounting plate; 5, chain; 6, sprocket; 7, roller; 8, sliding rod; 9, protective plate; 10, detection window; 11, through rod opening; 12, arc-shaped protective plate; 13, arc-shaped slideway; 14, protective shell; 15, connecting block; 16, long strip hole; 17, support frame; 18, first gear; 19, second gear; 20, third gear; 21, elastic sheet; 22, limiting claw; 23, fixed seat; 24, transmission rod; 25, limiting rod; 26, dial rod; 27, one-way bearing; 28, ejection spring; 29, slider; 30, arc-shaped baffle; 31, buffer spring; 32, guide rail; 33, guide groove opening; 34, push block; 35, linkage plate; 36, guide plate; 37, V-shaped rod; 38, pressing block; 39, guide post; 40, hanging part; 41, fixing plate; 42, hook; 43, clamping spring; 44, U-shaped block; 45, support block; 46, limiting block. Detailed implementation manners

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0027] It should be further noted that the drawings and embodiments of the present invention mainly describe and explain the concept of the present invention. On the basis of this concept, the specific forms and settings of some connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be completely described. However, on the premise that those skilled in the art understand the concept of the present invention, those skilled in the art can implement the above specific forms and settings in a well-known manner.

[0028] When an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0029] The orientation terms "inside" and "outside" refer to the inside and outside relative to the contour of each component itself. The orientation or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present invention.

[0030] For the convenience of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" can be used here to describe the spatial positional relationship between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways, and corresponding interpretations should be made for the spatial relative descriptions used here.

[0031] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, and "several" means one or more, unless otherwise specifically defined.

[0032] Now, a pavement damage detection device provided by the present invention will be described.

[0033] As Figure 1As shown in the figure, a road surface damage detection device provided by the first embodiment of the present invention includes a vehicle body 1, a circulating transmission mechanism, a circulating slide rail 2, a detection component 3, a driving component, and a control component. The circulating transmission mechanism is arranged at the bottom of the vehicle body 1. The circulating transmission mechanism is a chain transmission structure. The center line connecting the two sprockets 6 of the circulating transmission mechanism is perpendicular to the traveling direction of the vehicle body 1. The chain 5 of the circulating transmission mechanism is chain-drivenly connected to the two sprockets 6. The circulating slide rail 2 is arranged at the bottom of the vehicle body 1. The circulating slide rail 2 has the same shape as the chain 5 and is arranged around the chain 5. A plurality of mounting plates 4 are slidably arranged on the circulating slide rail 2. The mounting plates 4 are connected to the chain 5. The detection component 3 is connected to the mounting plates 4 and is used for detecting the road surface. The driving component is connected to one of the sprockets 6 and is used for driving the chain 5 to move and driving the mounting plates 4 to slide along the circulating slide rail 2. The control component is electrically connected to the detection component 3 and the driving component and is used for receiving the information transmitted by the detection component 3, analyzing the road surface defects, and controlling the driving component to drive the chain 5 to move.

[0034] A road surface damage detection device provided by this embodiment, compared with the prior art, the present invention reforms the existing vehicle body 1, arranges a circulating transmission mechanism at the bottom of the vehicle body 1. The circulating transmission mechanism is a chain transmission structure. The center line connecting the two sprockets 6 of the circulating transmission mechanism is perpendicular to the traveling direction of the vehicle body 1. A circulating slide rail 2 is arranged outside the chain 5 of the circulating transmission mechanism. The circulating slide rail 2 is connected to the bottom of the vehicle body 1 and has the same shape as the chain 5. A plurality of mounting plates 4 are slidably arranged on the circulating slide rail 2. The mounting plates 4 are connected to the chain 5. The detection component 3 is arranged on the mounting plates 4. The detection component 3 can detect the road surface when the vehicle body 1 is traveling. At the same time, the driving component is connected to one of the sprockets 6 of the circulating transmission mechanism. When detection is required, the driving component can drive the chain 5 to move, driving the detection component 3 on the mounting plates 4 to move horizontally perpendicular to the moving direction of the vehicle body 1, increasing the movement freedom of the detection component 3 and expanding the detection area. A control component is arranged in the vehicle body 1. The control component is electrically connected to the detection component 3 and can receive the data of the detection component 3 and analyze the road surface defects. By reforming the vehicle body 1, the present invention realizes the automatic detection of the road surface conditions. At the same time, by design, the detection range of the detection component 3 is increased, the detection area is expanded, and the detection efficiency is improved.

[0035] In this embodiment, the detection component 3 can be an ultrasonic probe or a camera, etc.

[0036] Such as Figures 1 to 2As shown in the figure, in this embodiment, at least two rollers 7 are rotatably arranged at the bottom of the mounting plate 4. A plurality of rollers 7 on the mounting plate 4 are respectively in rolling contact with two side surfaces of the circulating slide rail 2, and the mounting plate 4 slides along the circulating slide rail 2 through the rollers 7. A connecting block 15 is arranged on the side surface of the mounting plate 4. A long hole 16 is formed in the connecting block 15. The upper end of the pin body in the chain link structure passes through the long hole 16 of the connecting block 15 and is connected to a fixing member. The fixing member can be connected to the pin body by welding or other connection methods in the prior art. The fixing member is used to prevent the pin body from detaching from the connecting block 15. The arrangement of the long hole 16 facilitates the connection between the mounting plate 4 and the chain 5.

[0037] As Figures 1 to 3 shown, on the basis of the first embodiment, the present invention further provides a specific embodiment as follows: A road surface damage detection device further includes a protection mechanism. The protection mechanism includes a protection shell 14. The protection shell 14 is connected to the mounting plate 4. The inside of the protection shell 14 is a hollow structure. The detection component 3 is located inside the protection shell 14. A detection window 10 is formed on the protection shell 14. The detection component 3 detects the road surface condition through the detection window 10. A sliding rod 8 is frictionally slidably arranged inside the protection shell 14. The moving direction of the sliding rod 8 is the same as the driving direction of the vehicle body 1. Both ends of the sliding rod 8 extend outside the protection shell 14. Protection plates 9 are arranged at both ends of the sliding rod 8. A collision sensing element is embedded in the protection plate 9. The collision sensing element is connected to the control component.

[0038] In this embodiment, the protection shell 14 is provided. The detection component 3 is arranged inside the protection shell 14. The detection window 10 is formed on the protection shell 14. The detection component 3 detects the road surface condition through the detection window 10. Thus, the protection shell 14 can provide preliminary protection for the detection component 3, avoiding the detection component 3 being damaged by collision or sundries entering the protection shell 14, resulting in a short - circuit risk. At the same time, the sliding rod 8 is slidably arranged inside the protection shell 14. Both ends of the sliding rod 8 extend outside the protection shell 14, and a protection plate 9 is arranged at each end of the sliding rod 8. Thus, whether the vehicle body 1 moves forward or backward, if there is an object that will hinder, it will first collide with the protection. A collision sensing element is embedded in the protection plate 9. The collision sensing element is connected to the control component. When the protection plate 9 is collided, the collision sensing element will notify the control component of the information. The control component can control the alarm unit to send an alarm to the driver to avoid the collision damage of the detection component 3.

[0039] In this embodiment, the sliding rod 8 is slidably arranged inside the protection shell 14. Both ends of the sliding rod 8 extend outside the protection shell 14, and a protection plate 9 is arranged at each end of the sliding rod 8. This structural design enables the protection plate 9 to provide protection in the front - rear direction of the vehicle body 1 whether the protection shell 14 moves to the front row straight section or the rear row straight section of the circulating slide rail 2 along with the mounting plate 4.

[0040] As Figures 2 to 4As shown, a specific embodiment provided by the present invention on the basis of the above embodiments is as follows: The bottom of the protective shell 14 is arc-shaped, the detection window 10 is opened on the arc-shaped bottom of the protective shell 14, arc-shaped slideways 13 are provided on two opposite inner walls of the protective shell 14, the arc-shaped slideways 13 are located on the left and right sides of the arc-shaped bottom of the protective shell 14, an arc-shaped protection plate 12 is slidably arranged in the arc-shaped slideways 13, the arc-shaped protection plate 12 can slide along the arc-shaped slideways 13 to close or open the detection window 10, and a release assembly is arranged in the protective shell 14, and the release assembly is used to control the arc-shaped protection plate 12 to open or close the detection window 10.

[0041] In this embodiment, when the protection plate 9 is collided, the release assembly releases the arc-shaped protection plate 12, and the arc-shaped protection plate 12 closes the detection window 10. When the protection plate 9 is not collided, the release assembly keeps the arc-shaped protection plate 12 in a static state, and the detection window 10 is opened.

[0042] In this embodiment, a support frame 17 is arranged in the protective shell 14, the detection assembly 3 is arranged on the support frame 17, the detection assembly 3 is arranged head-down through the support frame 17, a through rod opening 11 is arranged in the middle of the support frame 17, and the sliding rod 8 passes through the through rod opening 11.

[0043] As Figures 2 to 4 shown, a specific embodiment provided by the present invention on the basis of the above embodiments is as follows: The sliding rod 8 is a rack, two arc-shaped protection plates 12 are slidably arranged on the arc-shaped slideways 13, a limiting rod 25 is arranged on the arc-shaped protection plate 12, two groups of release assemblies are arranged, both groups of release assemblies are in transmission connection with the sliding rod 8, when the detection window 10 is opened, the two groups of release assemblies are respectively in contact with the two limiting rods 25, and the two arc-shaped protection plates 12 are respectively limited in front of and behind the detection window 10; when the sliding rod 8 is impacted and moves, one of the release assemblies is separated from the contact with the limiting rod 25, and the arc-shaped protection plate 12 slides under the action of gravity to close the detection window 10.

[0044] In this embodiment, two arc-shaped guard plates 12 are provided on the arc-shaped slideway 13. A limiting rod 25 is provided on each arc-shaped guard plate 12. At the same time, two sets of release components are correspondingly provided. The release components correspond to the arc-shaped guard plates 12 one by one. The release components can contact the limiting rod 25 on their respective corresponding arc-shaped guard plates 12, so that the arc-shaped guard plates 12 remain stationary. When the detection window 10 is opened and not impacted, the two arc-shaped guard plates 12 are respectively located in front of and behind the detection window 10 and are restricted by their respective corresponding release components and remain stationary. Along the traveling direction of the vehicle body 1, when the guard plate 9 in front of the protective shell 14 is collided, the release component corresponding to the arc-shaped guard plate 12 in front of the detection window 10 disengages from the contact with the limiting rod 25, and the arc-shaped guard plate 12 in front of the detection window 10 slides down under the action of gravity to close the detection window 10. Similarly, when the guard plate 9 behind the protective shell 14 is collided, the release component corresponding to the arc-shaped guard plate 12 behind the detection window 10 disengages from the contact with the limiting rod 25, and the arc-shaped guard plate 12 behind the detection window 10 slides down under the action of gravity to close the detection window 10.

[0045] As Figures 2 to 4 shown, a specific embodiment provided by the present invention on the basis of the above embodiment is as follows: The release component includes a limiting claw 22, a spring piece 21, a first gear 18, a second gear 19, and a third gear 20. The limiting claw 22 is rotatably arranged in the protective shell 14, and a transmission rod 24 is rotatably arranged on the limiting claw 22; One end of the spring piece 21 is fixed in the protective shell 14 through a fixing seat 23, and the other end is freely released. The spring piece 21 contacts the limiting claw 22 and is used to push the limiting claw 22 to contact the limiting rod 25 and prevent the limiting claw 22 from rotating to release the arc-shaped guard plate 12, so that the arc-shaped guard plate 12 is stationary in front of or behind the detection window 10; The first gear 18 meshes with the slide rod 8; The second gear 19 is coaxially connected to the first gear 18 through a one-way bearing 27, and the one-way bearing 27 is used to control the second gear 19 to only rotate around one direction along with the first gear 18; The third gear 20 is rotatably arranged in the protective shell 14 and meshes with the second gear 19. A dial rod 26 is provided on the third gear 20. The dial rod 26 is arranged along the radial direction of the third gear 20. The dial rod 26 contacts the transmission rod 24. When the third gear 20 rotates, the dial rod 26 pushes the limiting claw 22 to rotate through the transmission rod 24 to release the arc-shaped guard plate 12.

[0046] In this embodiment, taking Figure 3The action process of the release assembly is described in detail from the perspective of the embodiment. When the left protective plate 9 is hit, the slide bar 8 moves from left to right, driving the two first gears 18 to rotate clockwise. The second gear 19 on the left rotates clockwise with the first gear 18 under the action of the one-way bearing 27 connected to it. The third gear 20 meshing with the second gear 19 on the left will rotate counterclockwise, and the lever 26 on the third gear 20 drives the transmission rod 24 in contact with it to rotate, driving the limit claw 22 connected to the transmission rod 24 to overcome the elastic force of the spring 21 to rotate, so that the limit claw 22 on the left is out of contact with the limit rod 25 on the left arc-shaped protective plate 12, and the left arc-shaped protective plate 12 slides down along the arc slide 13 under the action of gravity, closing the detection window 10. At the same time, the second gear 19 on the right side does not rotate with the first gear 18 under the action of the one-way bearing 27 connected to it, and the first gear 18 on the right side rotates clockwise by itself. The right limit claw 22 is always in contact with the limit rod 25 on the right arc-shaped guard plate 12 under the action of the spring 21, and the right arc-shaped guard plate 12 remains stationary. Figure 3 When the protective plate 9 on the right is hit, the sliding rod 8 will move from right to left, driving the two first gears 18 to rotate counterclockwise. The second gear 19 on the left does not rotate with the first gear 18 due to the one-way bearing 27 connected thereto, and the second gear 19 on the right rotates counterclockwise with the first gear 18. The third gear 20 on the right rotates clockwise, driving the right limit claw 22 to rotate and release the right arc-shaped protective plate 12. The right arc-shaped protective plate 12 slides and closes the detection window 10 under the action of gravity.

[0047] In this embodiment, Figure 3 The perspective is described in detail. When the left and right guard plates 9 are not collided, take the release assembly on the left as an example. Because a lever 26 is added to the third gear 20, under the action of gravity, the lever 26 may drive the third gear 20 to rotate clockwise downward. When the third gear 20 on the left rotates clockwise, the second gear 19 on the left that is meshed with it will rotate counterclockwise. Because the one-way bearing 27 on the left is that when the first gear 18 rotates clockwise, the second gear 19 will rotate accordingly. Otherwise, the second gear 19 will not rotate accordingly. Therefore, the second gear 19 cannot rotate counterclockwise relative to the first gear 18. When it rotates counterclockwise relative to the first gear 18, it will be locked, thereby ensuring that the lever 26 and the transmission rod 24 remain in contact in a non-collision state. The structure on the right is the same. Once a collision occurs, the lever 26 will quickly shift the transmission rod 24, so that the limit claw 22 is out of contact with the limit rod 25, ensuring that the detection window 10 is quickly closed.

[0048] like Figures 5 to 8As shown in the figure, a specific implementation manner provided by the present invention on the basis of the above embodiments is as follows: The protective shell 14 is a hollow structure. Detection windows 10 are provided on both sides of the protective shell 14. The two detection windows 10 face each other. The detection component 3 is located between the two detection windows 10. Guide slots 33 are provided on the protective shell 14, one below each of the two detection windows 10. An arc-shaped guide slideway is provided inside the protective shell 14. An arc-shaped baffle 30 is slidably arranged in the guide slideway. The two ends of the arc-shaped baffle 30 can respectively extend out of the protective shell 14 through the two guide slots 33. A linkage plate 35 is rotatably arranged in the middle of the lower end of the arc-shaped baffle 30. The linkage plate 35 is in a vertical state under the action of gravity. A guide rail 32 is fixedly arranged inside the protective shell 14. The length direction of the guide rail 32 is parallel to the length direction of the slide rod 8. A U-shaped block 44 is slidably arranged on the guide rail 32. The linkage plate 35 is inserted into the U-shaped groove formed by the U-shaped block 44. A pushing component is further provided inside the protective shell 14. The pushing component is used to push the U-shaped block 44 to slide along the guide rail 32 and drive the arc-shaped baffle 30 to extend out of the protective shell 14.

[0049] In this embodiment, the detection component 3 is a detection element with a steering function. Detection windows 10 are provided on both opposite sides of the protective shell 14. No matter which straight section of the circular slide rail 2 the detection component 3 moves to along with the mounting plate 4, it can detect the front through different detection windows 10. In this embodiment, a guide slot 33 is provided below each of the two detection windows 10. An arc-shaped guide slideway is provided inside the protective shell 14. An arc-shaped baffle 30 is slidably arranged in the guide slideway. The two ends of the arc-shaped baffle 30 can respectively extend out of the protective shell 14 through the two guide slots 33. When no collision occurs, the arc-shaped baffle 30 is at the arc-shaped bottom of the guide slide under the action of gravity. A linkage plate 35 is rotatably arranged under the arc-shaped baffle 30. The linkage plate 35 is in a vertical state under the action of gravity. At the same time, a guide rail 32 is arranged inside the protective shell 14. The length direction of the guide rail 32 is perpendicular to the two detection windows 10. A U-shaped block 44 is slidably arranged on the guide rail 32. The U-shaped block 44 has a U-shaped groove inside. The linkage plate 35 is inserted into the U-shaped groove. When the pushing component pushes the U-shaped block 44 to move along the guide rail 32, the linkage plate 35 moves upward under the push of the U-shaped block 44, driving the arc-shaped baffle 30 to move along the guide slideway and extend out of the protective shell 14, reaching in front of the detection window 10. Thus, the collision object will first collide with the arc-shaped baffle 30, and the arc-shaped baffle 30 protects the detection component 3.

[0050] As Figures 5 to 8As shown in the figure, a specific implementation manner provided by the present invention on the basis of the above-mentioned embodiments is as follows: There are two guide rails 32, and the two guide rails 32 are arranged in parallel at intervals. The U-shaped block 44 is slidably arranged on the two guide rails 32. The pushing component includes two sliders 29, two guide plates 36, two groups of ejection springs 28, two groups of hanging parts and a release part. The two sliders 29 are slidably arranged on the two guide rails 32. The two sliders 29 are respectively located on both sides of the U-shaped block 44 and are in contact with the U-shaped block 44. The two guide plates 36 have the freedom of moving up and down. Along the length direction of the guide rail 32, the two guide plates 36 are respectively located outside the two sliders 29. The guide plates 36 are located below the two guide rails 32. A pressing block 38 is arranged in the middle of the guide plate 36. The pressing block 38 is located between the two guide rails 32. Two hanging parts 40 are also arranged on the guide plate 36. The two hanging parts 40 are symmetrically arranged on both sides of the pressing block 38 respectively. The two groups of ejection springs 28 are respectively connected to the two pressing blocks 38 and are in a compressed state between the pressing block 38 and the slider 29 on the same side. Each group of hanging parts includes two hanging components. The two hanging components in the same group are respectively hung on the two hanging parts 40 on the same guide plate 36. The hanging part is used to fix the guide plate 36 at a set height to keep the ejection spring 28 capable of pressing between the slider 29 and the pressing block 38. The release part is used to control one group of hanging parts to release the hanging part 40, so that the pressing block 38 and the ejection spring 28 on the same side as the hanging part 40 fall under the action of gravity, and the arc-shaped baffle 30 extends out of the protective shell 14 under the action of the elastic force of the ejection spring 28 on the other side.

[0051] In this embodiment, taking Figure 8Described from a perspective, four guiding columns 39 are provided at the bottom of the protective shell 14. The four guiding columns 39 are grouped in pairs of two, and are respectively located in front of and behind the linkage plate 35. Two through holes are provided on the guiding plates 36 located in front of and behind the linkage plate 35. The two guiding columns 39 in the same group respectively pass through the two through holes on the same limiting plate, so that the guiding plate 36 can only have the freedom of moving up and down. Two mutually spaced and parallel guide rails 32 are provided inside the protective shell 14, and the guiding plate 36 is located below the two guide rails 32. A pressing block 38 and two hanging parts 40 are provided on each guiding plate 36. The pressing block 38 is located in the middle of the guiding plate 36. The two hanging parts 40 are arranged on the left and right sides of the pressing block 38 and are symmetric with respect to the pressing block 38. An ejection spring 28 is provided on the surface of each pressing block 38 facing the linkage plate 35. A hanging component is provided beside each hanging part 40. The two hanging components located in front of the linkage plate 35 form a set of hooking parts, and the two hanging components located behind the linkage plate 35 form another set of hooking parts. Two sliders 29 are slidably arranged on the two guide rails 32. The two sliders 29 are respectively located on the front and rear sides of the U-shaped block 44, and one side of the slider 29 can contact the U-shaped block 44, and the other side of the slider 29 can contact the ejection spring 28. When no collision occurs, both sets of hooking parts remain in a hooked state with the hanging parts 40. The pressing blocks 38 in front of and behind the linkage plate 35 are both at the same height as the sliders 29. At this time, the ejection springs 28 on the pressing blocks 38 are both pressed against the sliders 29 on the same side in a compressed state. Since the compression amounts of the two ejection springs 28 are the same, the U-shaped block 44 remains in a balanced state and cannot push the arc-shaped baffle 30 to move out of the protective shell 14. At the same time, with this structural design, when the vehicle body 1 makes an emergency brake, the two ejection springs 28 can play a buffering role, and under the action of the two ejection springs 28, the arc-shaped baffle 30 can also quickly return to its position, avoiding hard collisions of the arc-shaped baffle 30 caused by the emergency brake. When a collision occurs, the release part selectively controls one set of hooking parts to release the hanging part 40. As a result, the guiding plate 36 and the pressing block 38 connected to the released hanging part 40 slide downward under the action of gravity. Thus, the ejection spring 28 on one side of the linkage plate 35 is withdrawn. Under the elastic force of the ejection spring 28 on the other side, the U-shaped block 44 moves along the guide rail 32, thereby pushing the arc-shaped baffle 30 to extend out of the protective shell 14 through the guiding notch 33 and reach in front of the detection window 10 to protect the detection assembly 3.

[0052] As Figures 5 to 8As shown in the figure, a specific implementation manner provided by the present invention on the basis of the above embodiments is as follows: Hanging holes are provided on the outer sides of the hanging members 40. The hanging assembly includes a hook 42, a fixing plate 41, and a clamping spring 43. The middle part of the hook 42 is rotatably connected to the protective shell 14. A hook 42 is provided beside the hanging hole of each hanging member 40 for hanging with the hanging hole; a fixing plate 41 is provided beside each hook 42, and the fixing plate 41 is connected to the protective shell 14; one end of the clamping spring 43 is connected to the fixing plate 41, and the other end is connected to the hook 42. The clamping spring 43 is used to pull the hook 42 to rotate and tightly hook the hanging member 40.

[0053] In this embodiment, the hanging assembly includes a hook 42, a fixing plate 41, and a clamping spring 43. The middle part of the hook 42 is rotatably connected to the protective shell 14. Since the lower end of the hook 42 is provided with a hook body, the lower end of the hook 42 is heavier and the upper end is relatively lighter. Therefore, under the action of gravity, the hook 42 is in a vertical state. In this state, the hook body of the hook 42 just extends into the hanging hole of the hanging member 40. A fixing plate 41 is provided beside each hook 42. One end of the clamping spring 43 is connected to the fixing plate 41, and the other end of the clamping spring 43 is connected to the hook 42 near the hook body section. The clamping spring 43 will pull the hook body end of the hook 42 to rotate towards the hanging hole of the hanging member 40, so that the hanging connection is more stable.

[0054] As Figures 6 to 8 shown in the figure, a specific implementation manner provided by the present invention on the basis of the above embodiments is as follows: There are two sliding rods 8, and the two sliding rods 8 are arranged at intervals. The ends on the same side of the two sliding rods 8 are connected by the same protective plate 9. The releasing part includes four push blocks 34. Two push blocks 34 are provided on each sliding rod 8. The two hooks 42 on the same side as the sliding rod 8 are both arranged between the two push blocks 34 on the sliding rod 8. The push block 34 is used to push the hook 42 to rotate and disengage from the hanging connection with the hanging member 40 when passing by the hook 42.

[0055] In this embodiment, Figure 6Described from a perspective, the two detection windows 10 on the protective shell 14 are respectively located in front of and behind the traveling direction of the vehicle body 1. Therefore, the traveling direction of the vehicle body 1 is described as the front-back direction. Two sliding rods 8 are provided. When there is no external force, the two sliding rods 8 remain stationary under the action of friction; when encountering an external force collision, the two sliding rods 8 can move in the front-back direction. The two sliding rods 8 are respectively arranged on the left and right sides of the arc-shaped baffle 30. At the same time, there are two hanging components on each of the left and right sides of the arc-shaped baffle 30. The two pushing blocks 34 on the same sliding rod 8 are respectively located beside the two hanging components on the same side, and the two hanging components are located between the two pushing blocks 34. When the front side of the sliding rod 8 is collided, the sliding rod 8 moves from front to back under the push of the collision external force. As the sliding rod 8 moves, the pushing block 34 closer to the front will pass by the hanging component in front, pushing the hanging component in front to disengage from the hanging hole. As a result, the pressing block 38 in front of the linkage plate 35 will drop, and the ejection spring 28 behind the linkage plate 35 pushes the U-shaped block 44 forward, and the arc-shaped baffle 30 extends from the front. And the pushing block 34 closer to the rear will move away from the hanging component at the rear as the sliding rod 8 moves. Therefore, the pressing block 38 behind the linkage plate 35 remains stationary. Similarly, when the rear is collided, the arc-shaped baffle 30 will extend from the rear.

[0056] In this embodiment, the pushing block 34 is provided with an inclined surface, and the end of the hook 42 farther away from the hook body contacts the inclined surface. As the sliding rod 8 moves, the inclined surface pushes the hook 42 to rotate away from the sliding rod 8, so that the hook 42 disengages from the hanging hole.

[0057] As Figures 5 to 8 shown, a specific embodiment provided by the present invention on the basis of the above embodiment is as follows: A buffer spring 31 is arranged below the guide plate 36 inside the protective shell 14.

[0058] In this embodiment, the buffer spring 31 is arranged below the guide plate 36 to play a buffering role, avoiding hard collision between the guide plate 36 and the protective shell 14 and causing damage.

[0059] As Figures 5 to 8As shown in the figure, a specific embodiment provided by the present invention on the basis of the above embodiments is as follows: A V-shaped rod 37 is rotatably arranged below each pressing block 38. The V-shaped rod 37 includes an intersecting long rod and short rod. The intersection of the long rod and the short rod is rotatably connected to the protective shell 14. The short rod is located below the pressing block 38. Taking the linkage plate 35 as the dividing line, the long rod is located below the slider 29 on the opposite side. A support block 45 is provided on the lower side of the long rod. The support block 45 is used to support the V-shaped rod 37, keeping the short rod below the pressing block 38 and the long rod below the slider 29 on the opposite side. A limit block 46 is provided at the lower end of the slider 29. When the pressing block 38 drops, the arc-shaped baffle 30 slides out of the protective shell 14 under the elastic force of the ejection spring 28 on the opposite side. The dropped pressing block 38 presses the V-shaped rod 37 to rotate, so that the long rod contacts the limit block 46 of the slider 29 on the opposite side, restricting the slider 29 from returning to its original position to prevent the arc-shaped baffle 30 from falling back into the protective shell 14.

[0060] In this embodiment, described from the Figure 8 perspective, when the front pressing block 38 and the guide plate 36 drop, when they drop to a certain height, the front guide plate 36 will press on the short rod below it, thereby driving the rotation of the V-shaped rod 37. The ejection spring 28 connected to the dropped pressing block 38 is disengaged from the contact with the slider 29, so that the ejection spring 28 at the rear side pushes the arc-shaped baffle 30 to quickly extend out of the protective shell 14. When the front guide plate 36 drops to the lowest position, the long rod of the V-shaped rod 37 just rotates to the rear side of the limit block 46 of the slider 29 on the opposite side and contacts the limit block 46 on the slider 29 on the opposite side, thereby preventing the slider 29 from returning to its original position at the rear side and keeping the arc-shaped baffle 30 in the extended protective state.

[0061] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

[0062] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0063] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorized specification. In all examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Claims

1. A road damage detection device, characterized in that: include: A circulating transmission mechanism is arranged at the bottom of the vehicle body (1), the circulating transmission mechanism is a chain transmission structure, two sprockets (6) of the circulating transmission mechanism are rotatably connected to the vehicle body (1), a line connecting the centers of the two sprockets (6) is perpendicular to the travel direction of the vehicle body (1), and a chain (5) of the circulating transmission mechanism is chain-drivenly connected to the two sprockets (6); A circulating slide rail (2) is arranged at the bottom of the vehicle body (1); the circulating slide rail (2) has the same shape as the chain (5) and is arranged around the chain (5); a plurality of mounting plates (4) are slidably arranged on the circulating slide rail (2); the mounting plates (4) are connected to the chain (5); A detection component (3) connected to the mounting plate (4) and used for detecting the road surface; A driving assembly connected to one of the sprockets (6) and used to drive the chain (5) to move and drive the mounting plate (4) to slide along the circulating slide rail (2); a control component, electrically connected to the detection component (3) and the drive component, and used for receiving information transmitted by the detection component (3) and controlling the drive component to drive the chain (5) to move; It also includes a vehicle body (1) and a protective mechanism, wherein the protective mechanism includes a protective shell (14), the protective shell (14) is connected to the mounting plate (4), the protective shell (14) is a hollow structure, the detection component (3) is located in the protective shell (14), a detection window (10) is provided on the protective shell (14), the detection component (3) detects road conditions through the detection window (10), a sliding rod (8) is frictionally slidably arranged in the protective shell (14), the moving direction of the sliding rod (8) is the same as the driving direction of the vehicle body (1), both ends of the sliding rod (8) extend out of the protective shell (14), both ends of the sliding rod (8) are provided with protective plates (9), a collision sensing element is embedded in the protective plate (9), and the collision sensing element is connected to the control component; The bottom of the protective shell (14) is arc-shaped, the detection window (10) is opened at the arc-shaped bottom of the protective shell (14), and arc-shaped slideways (13) are provided on two opposite inner walls of the protective shell (14), and the arc-shaped slideways (13) are located on the left and right sides of the arc-shaped bottom of the protective shell (14). An arc-shaped guard plate (12) is slidably arranged in the arc-shaped slideway (13), and the arc-shaped guard plate (12) can slide along the arc-shaped slideway (13) to close or open the detection window (10), and a release component is provided in the protective shell (14), and the release component is used to control the arc-shaped guard plate (12) to open or close the detection window (10); The slide bar (8) is a rack, and two arc-shaped guard plates (12) are slidably arranged on the arc-shaped slideway (13), and a limit rod (25) is arranged on the arc-shaped guard plate (12). Two groups of release components are arranged, and both groups of release components are transmission-connected with the slide bar (8). When the detection window (10) is opened, the two groups of release components are respectively in contact with the two limit rods (25), and the two arc-shaped guard plates (12) are respectively limited to the front and rear of the detection window (10); when the slide bar (8) is impacted and moved, one of the release components is disengaged from the contact with the limit rod (25), and the arc-shaped guard plate (12) slides and closes the detection window (10) under the action of gravity.

2. A road damage detection device as claimed in claim 1, characterized in that: The release assembly comprises: A limiting claw (22) is rotatably disposed in the protective shell (14), and a transmission rod (24) is rotatably disposed on the limiting claw (22); A spring sheet (21), one end of which is fixed in the protective shell (14) via a fixing seat (23) and the other end of which is freely released, the spring sheet (21) being in contact with the limiting claw (22) and used for pushing the limiting claw (22) to contact with the limiting rod (25) and preventing the limiting claw (22) from rotating to release the arc-shaped guard plate (12), so that the arc-shaped guard plate (12) is stationary in front of or behind the detection window (10); A first gear (18) meshing with the slide bar (8); A second gear (19) is coaxially connected to the first gear (18) via a one-way bearing (27), wherein the one-way bearing (27) is used to control the second gear (19) to rotate only in one direction along with the first gear (18); The third gear (20) is rotatably disposed in the protective shell (14) and meshes with the second gear (19). The third gear (20) is provided with a lever (26). The lever (26) is arranged along the radial direction of the third gear (20). The lever (26) contacts the transmission rod (24). When the third gear (20) rotates, the lever (26) pushes the limit claw (22) to rotate through the transmission rod (24), thereby releasing the arc-shaped guard plate (12).

3. A road damage detection device as claimed in claim 1, characterized in that: The protective shell (14) is a hollow structure. The detection windows (10) are provided on both sides of the protective shell (14). The two detection windows (10) are opposite to each other. The detection assembly (3) is located between the two detection windows (10). A guide notch (33) is provided on the protective shell (14) and below the two detection windows (10). An arc-shaped guide slide is provided inside the protective shell (14). An arc-shaped baffle (30) is slidably provided inside the guide slide. The two ends of the arc-shaped baffle (30) can extend out of the protective shell (14) through the two guide notches (33). The arc-shaped baffle (30) ) is rotatably provided at the middle part of the lower end of the protective shell (14), and the linkage plate (35) is in a vertical state under the action of gravity. A guide rail (32) is fixedly provided in the protective shell (14), and the length direction of the guide rail (32) is parallel to the length direction of the slide bar (8). A U-shaped block (44) is slidably provided on the guide rail (32), and the linkage plate (35) is inserted into a U-shaped groove formed by the U-shaped block (44). A push-out assembly is also provided in the protective shell (14), and the push-out assembly is used to push the U-shaped block (44) to slide along the guide rail (32) and drive the arc-shaped baffle (30) to extend out of the protective shell (14).

4. A road damage detection device as claimed in claim 3, characterized in that: There are two guide rails (32), the two guide rails (32) are arranged in parallel with each other, the U-shaped block (44) is slidably arranged on the two guide rails (32), and the ejection assembly comprises: Two sliding blocks (29) are slidably disposed on the two guide rails (32), the two sliding blocks (29) being respectively located on two sides of the U-shaped block (44) and being in close contact with the U-shaped block (44); Two guide plates (36) have the freedom to move up and down. Along the length direction of the guide rail (32), the two guide plates (36) are respectively located on the outside of the two sliders (29). The guide plate (36) is located below the two guide rails (32). A pressing block (38) is provided in the middle of the guide plate (36). The pressing block (38) is located between the two guide rails (32). Two hanging parts (40) are also provided on the guide plate (36). The two hanging parts (40) are respectively symmetrically arranged on both sides of the pressing block (38); Two sets of ejection springs (28), respectively connected to the two pressing blocks (38), and located between the pressing blocks (38) and the slider (29) on the same side in a squeezed state; Two groups of hooking parts, each group of hooking parts includes two hooking assemblies, and the two hooking assemblies in the same group are respectively hooked to the two hangers (40) on the same guide plate (36), and the hooking parts are used to fix the guide plate (36) at a set height and keep the ejection spring (28) pressed between the slider (29) and the pressing block (38); The release portion is used to control one group of the hook portions to release the hanger (40), so that the pressing block (38) and the ejection spring (28) on the same side as the hanger (40) fall down under the action of gravity, and the arc-shaped baffle (30) is extended out of the protective shell (14) under the elastic force of the ejection spring (28) on the other side.

5. A road damage detection device as claimed in claim 4, characterized in that: The outer sides of the hangers (40) are each provided with a hanging hole, and the hanging assembly comprises: A hook (42), the middle portion of the hook (42) being rotatably connected to the protective shell (14), and a hook (42) being arranged next to the hanging hole of each hanging component (40), and the hook (42) being used for hanging with the hanging hole; A fixing plate (41), wherein a fixing plate (41) is disposed next to each hook (42), and the fixing plate (41) is connected to the protective shell (14); A clamping spring (43) has one end connected to the fixing plate (41) and the other end connected to the hook (42); the clamping spring (43) is used to pull the hook (42) to rotate and hook the hanging component (40).

6. A road damage detection device as claimed in claim 5, characterized in that: There are two sliding bars (8), the two sliding bars (8) are arranged at an interval, and the ends of the two sliding bars (8) on the same side are connected through the same protective plate (9). The release part includes four push blocks (34), two push blocks (34) are arranged on each sliding bar (8), and the two hooks (42) on the same side of the sliding bar (8) are arranged between the two push blocks (34) on the sliding bar (8). The push block (34) is used to push the hook (42) to rotate and disengage from the hooking with the hanging member (40) when passing by the hook (42).

7. A road damage detection device as claimed in claim 4, characterized in that: A buffer spring (31) is arranged inside the protective shell (14) and below the guide plate (36).

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