Road traffic engineering pavement quality detection device with intelligent sensor

Abstract

The invention discloses a road traffic engineering pavement quality detection device with an intelligent sensor, and the device comprises a box body which is used for bearing a detection device; the universal wheels are rotationally mounted at the bottom of the box body and used for guiding and moving the box body; the intelligent sensing equipment is arranged at the top of the box body and used for collecting and analyzing the road surface of the highway traffic engineering in a high-precision mode, a protection device is arranged in the box body, a protection plate moves and stretches out to protect the detection device when the detection device works, and the detection device can be effectively prevented from being damaged by external factors; the service life of the equipment is prolonged, the maintenance cost is reduced, meanwhile, the protective plate can serve as a protective barrier to prevent surrounding equipment, objects or vehicles from causing unnecessary collision or damage to the detection device, and the safety of the equipment and personnel is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of pavement quality detection, and particularly to a pavement quality detection device for highway traffic engineering with intelligent sensors. Background Art

[0002] A pavement quality detection device for highway traffic engineering with intelligent sensors refers to a modern detection device integrating Internet of Things, artificial intelligence, and high-precision sensing technology, which can collect and analyze pavement quality data in real time, automatically, and with high precision, greatly improving the detection efficiency and accuracy.

[0003] The patent with the patent announcement number CN217211517U relates to the technical field of pavement quality detection. This patent discloses a pavement quality detection device for highway traffic engineering, including a bottom plate, a pressure rod, a pressing plate, and a sampling cylinder. By setting the pressure rod, the pressing plate, and the sampling cylinder, one end of the pressure rod is hinged to the bottom plate. When a person presses down the other end of the pressure rod, the pressing plate installed at the bottom of the pressure rod will press the sampling cylinder downward. The sampling cylinder vertically extends into the subgrade pavement under the limiting action of the limiting sleeve to achieve sampling of the pavement for quality detection. Compared with the existing pavement detection and sampling devices, this patent is convenient to operate and more labor-saving, and can smoothly insert the sampling cylinder into a relatively hard subgrade for sampling. By setting the moving wheels and the support, the moving wheels can facilitate the person to carry this device by pushing and pulling, making the carrying more convenient. The setting of the support can improve the firmness of the placement of this device, making the person more stable and safer during sampling.

[0004] In the above patent, by setting the moving wheels and the support, the moving wheels can facilitate the person to carry this device by pushing and pulling, making the carrying more convenient. The setting of the support can improve the firmness of the placement of this device, making the person more stable and safer during sampling. However, it is difficult to protect the detection device during the operation of the detection device, which is likely to cause the detection device to be collided or impacted by other objects during operation, resulting in damage to the detection device. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a pavement quality detection device for highway traffic engineering with intelligent sensors, which solves the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A road traffic engineering pavement quality detection device with intelligent sensors, comprising: a box body for carrying the detection device; universal wheels rotatably installed at the bottom of the box body for guiding and moving the box body; intelligent sensing equipment arranged on the top of the box body for accurately collecting and analyzing the road surface of road traffic engineering, and a protection device is arranged inside the box body; The protection device includes an electric telescopic rod, a bearing plate, a motor, a rotating shaft, a core drill bit, a sliding column, an inner fixing plate and a protection plate. The electric telescopic rod is fixedly installed at the top of the inner wall of the box body. The bearing plate is fixedly installed at the output end of the electric telescopic rod. The motor is fixedly installed on the top of the bearing plate. The rotating shaft is fixedly installed at the output end of the motor. The core drill bit is fixedly installed at one end of the rotating shaft away from the output end of the motor. The sliding column slidably penetrates the box body. The inner fixing plate is fixedly installed at one end of the sliding column close to the inner wall of the box body. The protection plate is fixedly installed at one end of the sliding column away from the inner fixing plate. By the movement of the bearing plate, the motor starts to move downward. The movement of the motor drives the rotating shaft to move downward. The movement of the rotating shaft drives the core drill bit to move downward. When the core drill bit is about to approach the road surface, the motor is started, so that the motor drives the rotating shaft to start rotating. The rotation of the rotating shaft drives the core drill bit to start rotating, and the rotation of the core drill bit drills and samples the road surface.

[0007] According to the above technical solution, the protection device further includes a first inclined block and a pressing rod. The first inclined block is fixedly installed on the side of the inner fixing plate away from the sliding column. The pressing rod is fixedly installed on the side of the bearing plate close to the inner fixing plate. The surfaces of the pressing rod and the first inclined block in contact with each other are both inclined surfaces. A first spring is arranged between the inner fixing plate and the inner wall of the box body. By setting the inclined surface, it is ensured that the pressing rod can smoothly push the first inclined block when moving. By setting the first spring, it is ensured that the inner fixing plate can achieve self-resetting; Among them, a stabilizing device for stabilizing the box body and a water spraying device for spraying water to cool down are arranged at the bottom of the box body. By setting the stabilizing device, it is ensured that a stable foundation can be provided. By setting the water spraying device, it is ensured that the temperature of the drill bit can be effectively reduced.

[0008] According to the above technical solution, the stabilizing device includes a moving column, a fixing plate, a second inclined block, a pushing plate and a bottom plate. The moving column slidably penetrates the bottom of the box body. The fixing plate is fixedly installed on the top of the moving column. The second inclined block is fixedly installed on the top of the fixing plate. The pushing plate is fixedly installed on the side of the inner fixing plate close to the second inclined block. The bottom plate is fixedly installed at the bottom of the moving column. When the protection plate moves, it drives the pushing plate to start moving. The movement of the pushing plate contacts and pushes the second inclined block to start moving downward. The movement of the second inclined block drives the fixing plate to start moving downward. The movement of the fixing plate drives the moving column to start moving downward. The movement of the moving column drives the bottom plate to start moving downward. The movement of the bottom plate contacts the road surface and lifts the entire detection device.

[0009] According to the above technical solution, the stabilizing device further includes a slide rail, a slide plate, an inclined block three and an inclined rod. The slide rail is fixedly installed at the bottom of the box body. The slide plate is slidably installed inside the slide rail. The inclined block three is fixedly installed at the bottom of the slide plate. The inclined rod is fixedly installed at the top of the bottom plate. When the bottom plate starts to move downward, it drives the inclined rod to move downward. The inclined rod moves to contact and push the inclined block three to start moving. The inclined block three moves to drive the slide plate to start moving. The slide plate moves to open the inlet and outlet at the bottom of the box body.

[0010] According to the above technical solution, the surfaces of the push plate and the inclined block two in contact with each other are both set as inclined surfaces. The surfaces of the inclined rod and the inclined block three in contact with each other are both set as inclined surfaces. A second spring is arranged between the fixed plate and the box body. A third spring is arranged between the slide plate and the slide rail. By setting the inclined surfaces, it is ensured that the push plate can smoothly push the inclined block two when moving. By setting the inclined surfaces, it is ensured that the inclined rod can smoothly push the inclined block three when moving. By setting the second spring, it is ensured that the fixed plate can achieve self-resetting. By setting the third spring, it is ensured that the slide plate can achieve self-resetting.

[0011] According to the above technical solution, the water spraying device includes a water tank, a water pipe and a nozzle. The water tank is fixedly installed at the top of the box body. The water pipe is fixedly installed at the bottom of the water tank. The nozzle is fixedly installed at the bottom of the water pipe. Before the core drill bit starts to rotate for sampling, the staff can manually start the nozzle. The nozzle pumps water from the inside of the water tank through the water pipe and sprays it on the road surface and the core drill bit to be sampled, to cool and dissipate heat from the core drill bit.

[0012] According to the above technical solution, the water spraying device further includes a water valve, a valve switch, a gear and a rack. The water valve is fixedly installed on the circumferential surface of the water pipe. The valve switch is fixedly installed at the control end of the water valve. The gear is fixedly installed on the circumferential surface of the valve switch. The rack is fixedly installed at the front part of the bearing plate. When the bearing plate moves downward, it drives the rack to start moving downward. The rack moves to drive the gear to start rotating. The gear rotates to drive the valve switch to start rotating. The valve switch rotates to open the water valve. When the water valve is opened, the staff can start the nozzle to spray water on the core drill bit for cooling.

[0013] According to the above technical solution, the gear meshes with the rack, and the nozzle contacts the bottom of the box body. By meshing, it is ensured that the rack can drive the gear to rotate when moving. By contacting, it is ensured that the nozzle can spray water on the key parts for cooling during operation.

[0014] The present invention provides a road surface quality detection device for highway traffic engineering with intelligent sensors. It has the following beneficial effects: (1) In this invention, the thickness, density, strength, etc. of the road surface can be directly inspected through the cored samples, which helps to evaluate whether the road surface meets the design and construction standards. Meanwhile, the road surface samples obtained by the core drill can be used for various experiments, such as performance tests of compressive strength, flexural strength, durability, etc.

[0015] (2) In this invention, when the detection device is working, the protection plate moves out to protect the detection device, which can effectively prevent damage to the detection device caused by these external factors, extend the service life of the equipment, reduce the maintenance cost. Meanwhile, the protection plate can serve as a protective barrier to prevent unnecessary collisions or injuries to the detection device caused by surrounding equipment, objects or vehicles, ensuring the safety of the equipment and personnel.

[0016] (3) In this invention, the bottom plate moves to contact the road surface and lift the entire detection device, which can provide a stable foundation, reduce the influence of uneven ground or external vibration on the equipment, avoid the tilting or uneven stress of the equipment caused by uneven ground or irregular hardness differences, reduce the errors caused by ground problems, and ensure the accuracy of the detection results. The inlet and outlet at the bottom of the box are opened by the movement of the sliding plate, ensuring that the detection device is firmly supported before starting the detection, preventing the equipment from shifting or vibrating during operation, so as to ensure that the core drill can accurately take samples at the specified position.

[0017] (4) In this invention, by cooling and dissipating heat from the core drill bit, the temperature of the drill bit is effectively reduced, maintaining the hardness and sharpness of the drill bit, extending the service life of the drill bit. Meanwhile, by spraying water for cooling, the thermal expansion and friction of the drill bit can be reduced, thereby improving the drilling efficiency, enabling the drilling work to proceed more smoothly, saving time and energy. By using the nozzle only during the operation of the equipment, it can ensure that the use of water is targeted, avoiding waste of resources. Meanwhile, by controlling the working time of the nozzle and spraying water only during the period when cooling is required, the temperature of the equipment and the drill bit can be precisely controlled, keeping the equipment in the best working state and avoiding damage to the equipment caused by overheating. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a sectional view of the structure of the electric telescopic rod and the bearing plate of the present invention; Figure 3 is a sectional view of the structure of the protection device of the present invention; Figure 4 is a sectional view of the structure of the stabilizing device of the present invention; Figure 5 is a schematic diagram of the structure of the slide rail and the sliding plate of the present invention; Figure 6 is a sectional view of the structure of the water spraying device of the present invention; Figure 7 For the present invention Figure 6 Schematic enlarged view of part A structure in the present invention; Figure 8 Schematic cross-sectional view of the water pipe and nozzle structure of the present invention.

[0019] In the figure: 1. Box body; 2. Universal wheel; 3. Intelligent sensing device; 4. Electric telescopic rod; 5. Bearing plate; 6. Motor; 7. Rotating shaft; 8. Core drilling head; 9. Slide column; 10. Inner fixing plate; 11. Protective plate; 12. First inclined block; 13. Pressing rod; 141. Moving column; 142. Fixing plate; 143. Second inclined block; 144. Pushing plate; 145. Bottom plate; 146. Slide rail; 147. Slide plate; 148. Third inclined block; 149. Inclined rod; 151. Water tank; 152. Water pipe; 153. Nozzle; 154. Water valve; 155. Valve switch; 156. Gear; 157. Rack. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1 - 8 , an embodiment of the present invention is: A road traffic engineering pavement quality detection device with an intelligent sensor, including: a box body 1, the box body 1 is used to carry the detection device; universal wheels 2, the universal wheels 2 are rotatably installed at the bottom of the box body 1 and are used to guide and move the box body 1; an intelligent sensing device 3, the intelligent sensing device 3 is arranged on the top of the box body 1 and is used to collect and analyze the road traffic engineering pavement with high precision, and a protection device is arranged inside the box body 1; The protection device includes an electric telescopic rod 4, a bearing plate 5, a motor 6, a rotating shaft 7, a core drill bit 8, a sliding column 9, an inner fixing plate 10 and a protection plate 11. The electric telescopic rod 4 is fixedly installed at the top of the inner wall of the box body 1, the bearing plate 5 is fixedly installed at the output end of the electric telescopic rod 4, the motor 6 is fixedly installed at the top of the bearing plate 5, the rotating shaft 7 is fixedly installed at the output end of the motor 6, the core drill bit 8 is fixedly installed at one end of the rotating shaft 7 away from the output end of the motor 6, the sliding column 9 slidably penetrates the box body 1, the inner fixing plate 10 is fixedly installed at one end of the sliding column 9 close to the inner wall of the box body 1, and the protection plate 11 is fixedly installed at one end of the sliding column 9 away from the inner fixing plate 10. By moving the protection plate 11 out to protect the detection device during the operation of the detection device, it can effectively prevent these external factors from damaging the detection device, extend the service life of the equipment, reduce the maintenance cost. At the same time, the protection plate 11 can serve as a protective barrier to prevent surrounding equipment, objects or vehicles from causing unnecessary collisions or injuries to the detection device, and ensure the safety of the equipment and personnel.

[0022] The protection device further includes a first inclined block 12 and a pressure rod 13. The first inclined block 12 is fixedly installed on the side of the inner fixing plate 10 away from the sliding column 9, the pressure rod 13 is fixedly installed on the side of the bearing plate 5 close to the inner fixing plate 10, and the surfaces of the pressure rod 13 and the first inclined block 12 in contact with each other are both inclined surfaces. A first spring is arranged between the inner fixing plate 10 and the inner wall of the box body 1. By setting the inclined surface, it is ensured that the pressure rod 13 can smoothly push the first inclined block 12 when moving, and by setting the first spring, it is ensured that the inner fixing plate 10 can achieve self-resetting.

[0023] During the operation of this embodiment: First, before starting work, the staff checks the working status of the detection device. After the staff confirms that there is no problem, the detection device is moved to a closed road where road surface quality detection is required through the universal wheels 2. Then, the staff moves the detection device to the designated position. Subsequently, the staff starts the detection device to detect the road surface quality of this section. After the detection device is turned on, the intelligent sensing device 3 can collect and analyze road surface quality data in real time, automatically, and with high precision through high-precision sensing technologies such as lidar or infrared thermal imaging, greatly improving the detection efficiency and accuracy. After the intelligent sensing device 3 is started, the electric telescopic rod 4 is started and pushes the bearing plate 5 to start moving downward. The movement of the bearing plate 5 drives the motor 6 to start moving downward. The movement of the motor 6 drives the rotating shaft 7 to start moving downward. The movement of the rotating shaft 7 drives the core drill bit 8 to start moving downward. When the core drill bit 8 is about to approach the road surface, the motor 6 is started, so that the motor 6 drives the rotating shaft 7 to start rotating. The rotation of the rotating shaft 7 drives the core drill bit 8 to start rotating. The rotation of the core drill bit 8 drills holes in the road surface for sampling. Through the drilled core samples, the thickness, density, strength, etc. of the road surface can be directly inspected to help evaluate whether the road surface meets the design and construction standards. At the same time, the road surface samples obtained by the core drill can be used for various experiments, such as performance tests of compressive strength, flexural strength, durability, etc. While the bearing plate 5 moves downward, it drives the pressure rod 13 to start moving downward. The movement of the pressure rod 13 contacts and pushes the first inclined block 12 to start moving. The movement of the first inclined block 12 drives the inner fixing plate 10 to start moving. The movement of the inner fixing plate 10 drives the sliding column 9 to start moving. The movement of the sliding column 9 drives the guard plate 11 to start moving. The movement of the guard plate 11 extends to protect the detection device during the operation of the detection device, which can effectively prevent these external factors from damaging the detection device, extend the service life of the equipment, reduce the maintenance cost. At the same time, the guard plate 11 can serve as a protective barrier to prevent surrounding equipment, objects or vehicles from causing unnecessary collisions or injuries to the detection device, ensuring the safety of the equipment and personnel.

[0024] Please refer to Figures 1 - 8 , on the basis of the above embodiment, in another embodiment of the present invention, a stabilizing device for stabilizing the box body 1 and a water spraying device for spraying water for cooling are provided at the bottom of the box body 1. By providing the stabilizing device, it is ensured that a stable foundation can be provided. By providing the water spraying device, it is ensured that the temperature of the drill bit can be effectively reduced.

[0025] The stabilizing device includes a moving column 141, a fixing plate 142, an inclined block II 143, a pushing plate 144 and a bottom plate 145. The moving column 141 slides through the bottom of the box body 1. The fixing plate 142 is fixedly installed on the top of the moving column 141. The inclined block II 143 is fixedly installed on the top of the fixing plate 142. The pushing plate 144 is fixedly installed on the side of the inner fixing plate 10 close to the inclined block II 143. The bottom plate 145 is fixedly installed on the bottom of the moving column 141. By moving the bottom plate 145 to contact the road surface and lift the entire detection device, a stable foundation can be provided, reducing the impact of uneven ground or external vibration on the equipment, avoiding the tilting or uneven force of the equipment caused by uneven ground or irregular hardness differences, reducing errors caused by ground problems, and ensuring the accuracy of the detection results.

[0026] The stabilizing device further includes a slide rail 146, a slide plate 147, an inclined block III 148 and an inclined rod 149. The slide rail 146 is fixedly installed on the bottom of the box body 1. The slide plate 147 is slidably installed inside the slide rail 146. The inclined block III 148 is fixedly installed on the bottom of the slide plate 147. The inclined rod 149 is fixedly installed on the top of the bottom plate 145. By moving the slide plate 147 to open the inlet and outlet at the bottom of the box body 1, it is ensured that the detection device starts to detect only after being stably supported, preventing the equipment from shifting or vibrating during operation, so as to ensure that the core drill can accurately sample at the specified position.

[0027] The surfaces of the pushing plate 144 and the inclined block II 143 in contact with each other are both set as inclined surfaces. The surfaces of the inclined rod 149 and the inclined block III 148 in contact with each other are both set as inclined surfaces. A second spring is provided between the fixing plate 142 and the box body 1. A third spring is provided between the slide plate 147 and the slide rail 146. By setting the inclined surfaces, it is ensured that the pushing plate 144 can smoothly push the inclined block II 143 when moving. By setting the inclined surfaces, it is ensured that the inclined rod 149 can smoothly push the inclined block III 148 when moving. By setting the second spring, it is ensured that the fixing plate 142 can achieve self-resetting. By setting the third spring, it is ensured that the slide plate 147 can achieve self-resetting.

[0028] The water spraying device includes a water tank 151, a water pipe 152 and a spray head 153. The water tank 151 is fixedly installed on the top of the box body 1. The water pipe 152 is fixedly installed on the bottom of the water tank 151. The spray head 153 is fixedly installed on the bottom of the water pipe 152. By cooling and dissipating heat from the core drill bit 8, the temperature of the drill bit is effectively reduced, maintaining the hardness and sharpness of the drill bit, extending the service life of the drill bit. At the same time, by spraying water for cooling, the thermal expansion and friction of the drill bit can be reduced, thereby improving the drilling efficiency, enabling the drilling work to proceed more smoothly, and saving time and energy.

[0029] The water spraying device further includes a water valve 154, a valve switch 155, a gear 156 and a rack 157. The water valve 154 is fixedly installed on the circumferential surface of the water pipe 152. The valve switch 155 is fixedly installed at the control end of the water valve 154. The gear 156 is fixedly installed on the circumferential surface of the valve switch 155. The rack 157 is fixedly installed at the front part of the carrier plate 5. By using the spray head 153 only during the operation of the device, it can ensure that the use of water is targeted, avoiding waste of resources. At the same time, by controlling the working time of the spray head 153 and spraying water only during the period when cooling is needed, the temperature of the device and the drill bit can be accurately controlled, keeping the device in the best working state and avoiding damage to the device caused by overheating.

[0030] The gear 156 meshes with the rack 157, and the spray head 153 contacts the bottom of the box body 1. Through the meshing, it is ensured that the rotation of the gear 156 can be driven when the rack 157 moves, and through the contact, it is ensured that the spray head 153 can spray water to cool the key parts during operation.

[0031] During the operation of this embodiment: while the guard plate 11 moves, it drives the push plate 144 to start moving. The movement of the push plate 144 contacts and pushes the second inclined block 143 to start moving downward. The movement of the second inclined block 143 drives the fixed plate 142 to start moving downward. The movement of the fixed plate 142 drives the moving column 141 to start moving downward. The movement of the moving column 141 drives the bottom plate 145 to start moving downward. The movement of the bottom plate 145 contacts the road surface and lifts the entire detection device, which can provide a stable foundation, reduce the influence of the device caused by uneven ground or external vibration, avoid the device tilt or uneven force caused by uneven ground or irregular hardness differences, reduce the error caused by ground problems, and ensure the accuracy of the detection results. While the bottom plate 145 starts moving downward, it drives the inclined rod 149 to start moving downward. The movement of the inclined rod 149 contacts and pushes the third inclined block 148 to start moving. The movement of the third inclined block 148 drives the sliding plate 147 to start moving. The movement of the sliding plate 147 opens the inlet and outlet at the bottom of the box body 1, ensuring that the detection starts only after the detection device is firmly supported, preventing the device from shifting or vibrating during operation, so as to ensure that the core drill can accurately take samples at the specified position.

[0032] Before the core drill bit 8 starts to rotate for sampling, the staff can manually activate the spray head 153. The spray head 153 pumps water from inside the water tank 151 through the water pipe 152 and sprays it on the road surface and the core drill bit 8 where sampling is about to be carried out, cooling and dissipating heat from the core drill bit 8, effectively reducing the temperature of the drill bit, maintaining the hardness and sharpness of the drill bit, extending the service life of the drill bit. At the same time, by cooling with water spray, the thermal expansion and friction of the drill bit can be reduced, thereby improving the drilling efficiency, enabling the drilling work to proceed more smoothly, saving time and energy. While the bearing plate 5 moves downward, it drives the rack 157 to start moving downward. The movement of the rack 157 drives the gear 156 to start rotating. The rotation of the gear 156 drives the valve switch 155 to start rotating. The rotation of the valve switch 155 opens the water valve 154. When the water valve 154 is opened, the staff can activate the spray head 153 to spray water for cooling the core drill bit 8. Only during the operation of the equipment is the spray head 153 used, which can ensure that the use of water is targeted, avoiding waste of resources. At the same time, by controlling the working time of the spray head 153 and spraying water only during the period when cooling is required, the temperature of the equipment and the drill bit can be precisely controlled, keeping the equipment in the best working state and avoiding damage to the equipment caused by overheating.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A road surface quality detection device for highway traffic engineering with an intelligent sensor, characterized in that: include: A box (1), the box (1) being used to carry the detection device; A universal wheel (2), the universal wheel (2) being rotatably mounted on the bottom of the box (1) and used for guiding and moving the box (1); An intelligent sensing device (3), the intelligent sensing device (3) being arranged on the top of the box (1) and used for collecting and analyzing road surface data of a highway traffic engineering project with high precision, and a protective device being arranged inside the box (1); The protective device comprises an electric telescopic rod (4), a bearing plate (5), a motor (6), a rotating shaft (7), a core drilling head (8), a sliding column (9), an inner fixing plate (10) and a guard plate (11); the electric telescopic rod (4) is fixedly mounted on the top of the inner wall of the box body (1); the bearing plate (5) is fixedly mounted on the output end of the electric telescopic rod (4); the motor (6) is fixedly mounted on the top of the bearing plate (5); the rotating shaft (7) is fixedly mounted on the output end of the motor (6); the core drilling head (8) is fixedly mounted on an end of the rotating shaft (7) away from the output end of the motor (6); the sliding column (9) slides through the box body (1); the inner fixing plate (10) is fixedly mounted on an end of the sliding column (9) close to the inner wall of the box body (1); and the guard plate (11) is fixedly mounted on an end of the sliding column (9) away from the inner fixing plate (10).

2. A road traffic engineering pavement quality detection device with an intelligent sensor according to claim 1, characterized in that: The protective device further comprises an inclined surface block (12) and a pressure rod (13), wherein the inclined surface block (12) is fixedly mounted on a side of the inner fixing plate (10) away from the sliding column (9), and the pressure rod (13) is fixedly mounted on a side of the bearing plate (5) close to the inner fixing plate (10), and a side where the pressure rod (13) and the inclined surface block (12) contact each other is configured as an inclined surface, and a spring (1) is disposed between the inner fixing plate (10) and the inner wall of the box body (1); Wherein, a stabilizing device for stabilizing the box body (1) and a water spraying device for spraying water for cooling are arranged at the bottom of the box body (1).

3. A road traffic engineering pavement quality detection device with an intelligent sensor according to claim 2, characterized in that: The stabilizing device comprises a movable column (141), a fixed plate (142), a second inclined surface block (143), a push plate (144) and a bottom plate (145); the movable column (141) slides through the bottom of the box body (1); the fixed plate (142) is fixedly mounted on the top of the movable column (141); the second inclined surface block (143) is fixedly mounted on the top of the fixed plate (142); the push plate (144) is fixedly mounted on a side of the inner fixed plate (10) close to the second inclined surface block (143); and the bottom plate (145) is fixedly mounted on the bottom of the movable column (141).

4. A road traffic engineering pavement quality detection device with an intelligent sensor according to claim 3, characterized in that: The stabilizing device further comprises a slide rail (146), a slide plate (147), a third inclined plane block (148) and an inclined plane rod (149); the slide rail (146) is fixedly mounted on the bottom of the box body (1); the slide plate (147) is slidably mounted inside the slide rail (146); the third inclined plane block (148) is fixedly mounted on the bottom of the slide plate (147); and the inclined plane rod (149) is fixedly mounted on the top of the bottom plate (145).

5. A road traffic engineering pavement quality detection device with an intelligent sensor according to claim 4, characterized in that: The surfaces of the push plate (144) and the second inclined surface block (143) that contact each other are both configured as inclined surfaces, the surfaces of the inclined surface rod (149) and the third inclined surface block (148) that contact each other are both configured as inclined surfaces, a second spring is provided between the fixed plate (142) and the box body (1), and a third spring is provided between the slide plate (147) and the slide rail (146).

6. A road traffic engineering pavement quality detection device with an intelligent sensor according to claim 5, characterized in that: The water spraying device comprises a water tank (151), a water pipe (152) and a spray head (153); the water tank (151) is fixedly mounted on the top of the box body (1); the water pipe (152) is fixedly mounted on the bottom of the water tank (151); and the spray head (153) is fixedly mounted on the bottom of the water pipe (152).

7. A road traffic engineering pavement quality detection device with an intelligent sensor according to claim 6, characterized in that: The water spray device further comprises a water valve (154), a valve switch (155), a gear (156) and a rack (157); the water valve (154) is fixedly mounted on the circumferential surface of the water pipe (152); the valve switch (155) is fixedly mounted on the control end of the water valve (154); the gear (156) is fixedly mounted on the circumferential surface of the valve switch (155); and the rack (157) is fixedly mounted on the front of the bearing plate (5).

8. A road traffic engineering pavement quality detection device with an intelligent sensor according to claim 7, characterized in that: The gear (156) is meshed with the rack (157), and the spray head (153) is in contact with the bottom of the box (1).

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