A highway engineering quality automatic detection device

Abstract

This invention discloses an automatic highway engineering quality detection device, belonging to the field of highway quality inspection. The automatic highway engineering quality detection device includes a base plate, a detection cylinder fixedly connected to the end face of the base plate, a winding rod rotatably connected to the inner wall of the detection cylinder, a first motor fixedly connected to the side wall of the detection cylinder, a pull rope wound around the side wall of the winding rod, and a counterweight fixedly connected to the bottom end of the pull rope. It also includes a cleaning component and a positioning component. Through the arrangement of a loading disc, switching disc, loading trough, marking ball, ventilation trough, flow pipe, ball drop trough, switch trough, third spring, opening and closing plate, third magnetic plate, and fourth magnetic plate, this invention enables different marking balls in different loading troughs to be pushed out by airflow according to different detection results. This facilitates rapid marking of different non-conforming points, making it easier for subsequent construction personnel to find and repair them, thus improving the detection efficiency of the device.

Description

Technical Field

[0001] This invention relates to the field of highway quality inspection technology, and in particular to an automatic highway engineering quality inspection device. Background Technology

[0002] Highway pavement quality inspection is the process of evaluating parameters such as smoothness, thickness, elasticity, and density of highway pavement to ensure the safety and stability of the pavement structure and to meet regulatory requirements. The elasticity of a highway pavement refers to its ability to return to its original shape after being subjected to external forces. The elasticity of a highway pavement plays a crucial role in the smoothness of vehicle travel, tire-road contact, reducing vibrations to vehicles and occupants, and protecting the pavement.

[0003] In road surface elasticity quality testing, a weight is typically dropped, and the rebound height of the weight is observed to assess the road surface elasticity. Currently, existing devices cannot ensure the cleanliness of the road surface at the point of impact, as dust and impurities can affect the force of the weight's impact and thus the rebound height, reducing the accuracy of the test results. Furthermore, existing devices require manual marking of any detected defects, reducing testing efficiency. Therefore, an automatic quality testing device for highway engineering is proposed. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art that cannot ensure the cleanliness of the road surface at the bottom when the hammer falls, resulting in reduced accuracy of the test results, and that after detecting unqualified points, manual marking is required, which reduces the testing efficiency. Therefore, an automatic quality testing device for highway engineering is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic quality inspection device for highway engineering includes a base plate, a detection cylinder fixedly connected to the end face of the base plate, a winding rod rotatably connected to the inner wall of the detection cylinder, a first motor fixedly connected to the side wall of the detection cylinder, the output shaft end of the first motor fixedly connected to the end of the winding rod, a pull rope wound around the side wall of the winding rod, a counterweight fixedly connected to the bottom end of the pull rope, a signal transmitting board fixedly connected to the side wall of the counterweight, and a signal receiving board fixedly connected to the inner wall of the detection cylinder. The device also includes: a cleaning component disposed on the end face of the base plate for cleaning dust and impurities from the highway surface; and a positioning component disposed on the end face of the base plate for locating and marking non-conforming points.

[0007] To facilitate the removal of dust and impurities from the ground, preferably, the cleaning assembly includes a dust collection box, which is fixedly connected to the bottom of a base plate. An air pump is fixedly connected to the upper surface of the base plate, and the input end of the air pump is connected to the inner cavity of the dust collection box. A baffle plate is rotatably connected to the upper part of the inner wall of the dust collection box. A filter plate is fixedly connected inside the dust collection box. Pressure nozzles are evenly spaced at the top of the inner cavity of the dust collection box. A water tank is fixedly connected to the upper surface of the base plate, and the bottom of the water tank is connected to the pressure nozzles. A pressure plate is slidably connected to the inner wall of the water tank.

[0008] To further reduce dust, a turntable is rotatably connected to the side wall of the pipe at the output end of the air pump. A fan blade is fixedly connected to the inner wall of the turntable. First magnetic plates are evenly spaced on the side wall of the turntable. A piston cylinder is fixedly connected to the side wall of the water tank. A piston plate is slidably connected to the inner wall of the piston cylinder. A first spring is fixedly connected between the side wall of the piston plate and the piston cylinder. A second magnetic plate is fixedly connected to the other side of the piston plate. The second magnetic plate and the first magnetic plate are magnetically repelled.

[0009] Furthermore, a first conduit is fixedly connected to the inner wall of the water tank, and the first conduit communicates with the inner cavity of the piston cylinder. A second conduit is fixedly connected to the side wall of the piston cylinder, and the second conduit communicates with the piston cylinder. Both the first conduit and the second conduit are equipped with one-way valves.

[0010] To improve the protection effect, preferably, airflow grooves are opened on all four sides of the inside of the detection cylinder, and airflow holes are opened at equal intervals on the sidewalls of the airflow grooves. The airflow holes are symmetrically arranged around the cylinder. An air guide box is fixedly connected to the sidewall of the detection cylinder. The air guide box is connected to the inner cavity of the airflow grooves, and the output end of the air pump is connected to the inner cavity of the air guide box.

[0011] To facilitate positioning and marking, preferably, the positioning component includes a loading plate, which is fixedly connected to the end face of the base plate. A switching plate is rotatably connected to the inner wall of the loading plate. A second motor is fixedly connected to the side wall of the loading plate. The output shaft of the second motor is fixedly connected to the end of the rotating shaft of the switching plate. Loading grooves are provided on both sides of the switching plate. Marking balls are slidably connected in the loading grooves. Ventilation grooves are provided on both sides of the end of the loading grooves.

[0012] Furthermore, flow pipes are fixedly connected to both sides of the loading plate, and the ends of the flow pipes on both sides that are close to each other are in contact with the side wall of the loading plate. The flow pipes on both sides are connected to the ventilation groove. A ball drop groove is opened on the inner wall of the detection cylinder. The ends of the flow pipes on both sides that are far apart from each other are respectively connected to the output end of the air pump and the inner cavity of the ball drop groove.

[0013] Furthermore, a limiting plate is slidably connected to the side wall of the loading slot, a switch slot is provided inside the loading plate, a third spring is fixedly connected to the middle of the switch slot, and opening and closing plates are fixedly connected to both ends of the third spring. The opening and closing plates are slidably connected to the inner wall of the switch slot, and a third magnetic plate is fixedly connected to the side wall of the opening and closing plates on both sides. The bottom of the third magnetic plate is fixedly connected to the side wall of the limiting plate.

[0014] Furthermore, a fourth magnetic plate is fixedly connected to both sides of the inner wall of the loading disk, and the fourth magnetic plate and the third magnetic plate are magnetically repelled.

[0015] To facilitate automated testing, preferably, the signal receiving board consists of a high-elasticity signal source, a normal signal source, and a low-elasticity signal source; the high-elasticity signal source, the normal signal source, and the low-elasticity signal source are all electrically connected to the signal transmitting board.

[0016] Compared with the prior art, the present invention provides an automatic detection device for highway engineering quality, which has the following beneficial effects:

[0017] 1. This automatic highway engineering quality inspection device, through the arrangement of a dust collection box, an air pump, a baffle plate, and a filter plate, can suck dust and impurities from the ground into the dust collection box, ensuring the cleanliness of the road surface to be inspected and improving the inspection accuracy of the device. Furthermore, in conjunction with the arrangement of a water tank, pressure nozzle, pressure plate, fan blades, turntable, first magnetic plate, second magnetic plate, piston cylinder, and piston plate, during the dust collection process, the pressure plate is pushed down, causing water from the water tank to be sprayed from the pressure nozzle into the dust collection box, thereby combining with the dust in the dust collection box, avoiding the generation of dust, and improving the environmental protection effect of the device during inspection.

[0018] 2. This automatic highway engineering quality detection device, through the design of airflow channels, airflow holes, and air guide boxes, generates increased airflow from the surrounding airflow holes and simultaneously blows it towards the side wall of the hammer, ensuring that the hammer falls in the center. This improves the protection of the signal transmitting board and signal receiving board, and also avoids the situation where the hammer's friction with the inner wall of the detection cylinder reduces the falling gravity, thus ensuring the accuracy of the detection results. Furthermore, the airflow entering the detection cylinder will eventually move downwards and blow onto the road surface, further ensuring the cleanliness of the road surface and the accuracy of the detection results.

[0019] 3. This automatic quality detection device for highway engineering, through the arrangement of a loading plate, switching plate, loading trough, marking ball, ventilation trough, flow pipe, ball drop trough, switch trough, third spring, opening and closing plate, third magnetic plate and fourth magnetic plate, can push out different marking balls in different loading troughs by airflow according to different detection results, which facilitates the rapid marking of different unqualified points, making it easier for subsequent construction personnel to find and repair them, thus improving the detection efficiency of the device. Attached Figure Description

[0020] Figure 1 This is a front view schematic diagram of the overall structure of an automatic quality detection device for highway engineering proposed in this invention;

[0021] Figure 2 This is a bottom view schematic diagram of the overall structure of an automatic highway engineering quality detection device proposed in this invention;

[0022] Figure 3 This is a side view half-section structural diagram of an automatic highway engineering quality detection device proposed in this invention;

[0023] Figure 4 This invention proposes an automatic quality detection device for highway engineering. Figure 3 Enlarged structural diagram of region A in the middle;

[0024] Figure 5 This invention proposes an automatic quality detection device for highway engineering. Figure 3 Enlarged structural diagram of region B in the middle;

[0025] Figure 6 This is a schematic diagram of the internal structure of the switching disk of an automatic quality detection device for highway engineering proposed in this invention;

[0026] Figure 7 This is a schematic diagram of the internal structure of the loading tray of an automatic quality detection device for highway engineering proposed in this invention;

[0027] Figure 8 This invention proposes an automatic quality detection device for highway engineering. Figure 7 Enlarged structural diagram of region C in the middle;

[0028] Figure 9 This is a schematic diagram of the internal structure of the detection cylinder of an automatic highway engineering quality detection device proposed in this invention.

[0029] In the diagram: 1. Base plate; 2. Detection cylinder; 21. Rewinding rod; 22. First motor; 23. Pull rope; 24. Counterweight; 25. Signal transmitting board; 26. Signal receiving board; 261. High-elasticity signal source; 262. Normal signal source; 263. Low-elasticity signal source; 3. Cleaning assembly; 31. Dust collection box; 32. Air pump; 321. Turntable; 322. Fan blades; 323. First magnetic plate; 33. Baffle plate; 331. Filter plate; 34. Pressure nozzle; 35. Water tank; 351. Piston cylinder; 352. Piston plate 353. First spring; 354. Second magnetic plate; 355. First conduit; 356. Second conduit; 36. Pressure plate; 4. Positioning assembly; 41. Loading tray; 42. Switching tray; 421. Loading slot; 422. Marking ball; 423. Ventilation slot; 43. Second motor; 44. Flow pipe; 45. Ball drop slot; 46. Limiting plate; 47. Switch slot; 471. Third spring; 472. Opening and closing plate; 473. Third magnetic plate; 48. Fourth magnetic plate; 5. Airflow slot; 51. Airflow hole; 52. Air guide box. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] Example:

[0033] Reference Figures 1-9An automatic quality inspection device for highway engineering includes a base plate 1, a detection cylinder 2 fixedly connected to the end face of the base plate 1, a winding rod 21 rotatably connected to the inner wall of the detection cylinder 2, a first motor 22 fixedly connected to the side wall of the detection cylinder 2, the output shaft end of the first motor 22 fixedly connected to the end of the winding rod 21, a pull rope 23 wound around the side wall of the winding rod 21, a counterweight 24 fixedly connected to the bottom end of the pull rope 23, a signal transmitting plate 25 fixedly connected to the side wall of the counterweight 24, a signal receiving plate 26 fixedly connected to the inner wall of the detection cylinder 2, and the signal receiving plate 26 is composed of a high-elasticity signal source 2. 61. Composed of a normal signal source 262 and a low-elasticity signal source 263; the high-elasticity signal source 261, the normal signal source 262, and the low-elasticity signal source 263 are all electrically connected to the signal transmitting board 25. The high-elasticity signal source 261, the normal signal source 262, and the low-elasticity signal source 263 are all located on the inner wall of the detection cylinder 2. It also includes: a cleaning component 3, which is set on the end face of the base plate 1 and is used to clean dust and impurities on the road surface; and a positioning component 4, which is set on the end face of the base plate 1 and is used to position and mark the unqualified detection points.

[0034] It should be noted that the signal transmission priority of the high-elasticity signal source 261 is higher than that of the normal signal source 262, while the signal transmission priority of the normal signal source 262 is higher than that of the low-elasticity signal source 263. That is to say, when the high-elasticity signal source 261 receives the signal transmitted by the signal transmitting board 25, the normal signal source 262 and the low-elasticity signal source 263 will no longer transmit signals. Similarly, when the normal signal source 262 receives the signal transmitted by the signal transmitting board 25, the low-elasticity signal source 263 will no longer transmit signals. The above content belongs to existing mature technology, and the specific design principle will not be elaborated.

[0035] With the above-described structure, the first motor 22 is controlled to rotate, causing the hammer 24 to fall rapidly and strike the road surface. After the hammer 24 reaches the ground, the signal transmitting plate 25 on its side wall will be activated. At this time, the high-elasticity signal source 261, normal signal source 262, and low-elasticity signal source 263 located on the side wall of the detection cylinder 2 will receive signals from the corresponding positions. The road surface elasticity test is then determined based on the rebound height of the hammer 24, thereby achieving automated and efficient detection and improving the detection effect of the device. Furthermore, the cleaning component 3 ensures the cleanliness of the road surface to be tested, allowing the hammer 24 to directly contact the road surface and ensuring the detection accuracy of the device. Then, the positioning component 4 is used to locate and mark the non-compliant points based on the different rebound heights of the hammer 24, facilitating the staff to find and repair them.

[0036] Reference Figures 1-5The cleaning component 3 includes a dust collection box 31, which is fixedly connected to the bottom of the base plate 1. An air pump 32 is fixedly connected to the upper surface of the base plate 1. The input end of the air pump 32 is connected to the inner cavity of the dust collection box 31. A baffle plate 33 is rotatably connected to the upper part of the inner wall of the dust collection box 31. A filter plate 331 is fixedly connected inside the dust collection box 31. Pressure nozzles 34 are evenly spaced at the top of the inner cavity of the dust collection box 31. A water tank 35 is fixedly connected to the upper surface of the base plate 1. The bottom of the water tank 35 is connected to the pressure nozzles 34. A pressure plate 36 is slidably connected to the inner wall of the water tank 35. A turntable 321 is rotatably connected to the side wall of the pipe at the output end of the air pump 32. A fan blade 322 is fixedly connected to the inner wall of the turntable 321. A first magnetic plate 323 is evenly spaced on the side wall of the water tank 35. A piston cylinder 351 is fixedly connected to the side wall of the water tank 35. A piston plate 352 is slidably connected to the inner wall of the piston cylinder 351. A first spring 353 is fixedly connected between the side wall of the piston plate 352 and the piston cylinder 351. A second magnetic plate 354 is fixedly connected to the other side of the piston plate 352. The second magnetic plate 354 and the first magnetic plate 323 are magnetically repelled. A first conduit 355 is fixedly connected to the inner wall of the water tank 35. The first conduit 355 communicates with the inner cavity of the piston cylinder 351. A second conduit 356 is fixedly connected to the side wall of the piston cylinder 351. The second conduit 356 communicates with the piston cylinder 351. A one-way valve is provided in both the first conduit 355 and the second conduit 356.

[0037] With the above-described structure, activating the vacuum pump 32 generates high-pressure suction within the dust collection box 31, causing the baffle plate 33 to flip open and suck dust and impurities from the ground into the dust collection box 31, ensuring the cleanliness of the road surface to be inspected. This allows the weight 24 to directly contact the road surface, improving the detection accuracy of the device. Simultaneously, the exhaust from the output end of the vacuum pump 32 drives the fan blades 322 to rotate, which in turn drives the turntable 321 to rotate. At this time, the first magnetic plate 323 and the second magnetic plate 354 will come into contact and repel each other magnetically, causing the piston plate 352 to contract into the piston cylinder 351. The compressed gas in the piston cylinder 351 then enters the water tank 35 through the first conduit 355, pushing the pressure plate 36 downward. This causes the water in the water tank 35 to be sprayed from the pressure nozzle 34 into the dust collection box 31, where it combines with the dust in the dust collection box 31, preventing dust generation and improving the environmental protection effect of the device during inspection.

[0038] Reference Figure 1 , Figure 9 The detection cylinder 2 has airflow grooves 5 on all four sides, and airflow holes 51 are equally spaced on the side wall of the airflow grooves 5. The airflow holes 51 are symmetrically arranged around the four sides. A guide box 52 is fixedly connected to the side wall of the detection cylinder 2. The guide box 52 is connected to the inner cavity of the airflow grooves 5. The output end of the air pump 32 is connected to the inner cavity of the guide box 52.

[0039] With the above-described structure, the output of the vacuum pump 32 will also deliver airflow to the air guide box 52. At this time, the airflow will be blown outward along the surrounding airflow holes 51, so that the weight 24 will obtain equal thrust around its side wall. This ensures that the weight 24 falls in the center, improving the protection of the signal transmitting board 25 and the signal receiving board 26. It also avoids the situation where the weight 24 rubs against the inner wall of the detection cylinder 2, reducing the falling gravity, thus ensuring the accuracy of the detection results. Furthermore, the airflow entering the detection cylinder 2 will eventually move downward and blow onto the road surface, further ensuring the cleanliness of the road surface and improving the detection accuracy of the device.

[0040] Reference Figure 1 , Figure 3 , Figure 6 and Figure 7 The positioning component 4 includes a loading plate 41, which is fixedly connected to the end face of the base plate 1. A switching plate 42 is rotatably connected to the inner wall of the loading plate 41. A second motor 43 is fixedly connected to the side wall of the loading plate 41. The second motor 43 is electrically connected to a high-elasticity signal source 261 and a low-elasticity signal source 263. The output shaft of the second motor 43 is fixedly connected to the end of the rotating shaft of the switching plate 42. Loading grooves 421 are provided on both sides of the switching plate 42. Marking balls 422 are slidably connected in the loading grooves 421. Ventilation grooves 423 are provided on both sides of the end of the loading grooves 421. Flow pipes 44 are fixedly connected to both sides of the loading plate 41. The ends of the flow pipes 44 that are close to each other are in contact with the side wall of the loading plate 41, and the flow pipes 44 and the ventilation grooves 423 are connected to each other. 23 are connected. The inner wall of the detection cylinder 2 is provided with a ball drop groove 45. The ends of the two flow pipes 44 that are far apart from each other are respectively connected to the output end of the air pump 32 and the inner cavity of the ball drop groove 45. The side wall of the loading groove 421 is slidably connected to a limit plate 46. The inside of the loading plate 41 is provided with a switch groove 47. A third spring 471 is fixedly connected to the middle of the switch groove 47. Both ends of the third spring 471 are fixedly connected to opening and closing plates 472. The opening and closing plates 472 are slidably connected to the inner wall of the switch groove 47. The side walls of the opening and closing plates 472 on both sides are fixedly connected to a third magnetic plate 473. The bottom of the third magnetic plate 473 is fixedly connected to the side wall of the limit plate 46. The inner walls of the loading plate 41 are fixedly connected to a fourth magnetic plate 48. The fourth magnetic plate 48 and the third magnetic plate 473 are magnetically repelled.

[0041] With the above structure, when the high-elasticity signal source 261 or the low-elasticity signal source 263 receives the signal from the signal transmitting board 25, the second motor 43 will be activated, causing the switching disk 42 to rotate 90 degrees clockwise or counterclockwise. During the rotation of the switching disk 42, the third magnetic plate 473 will come into contact with the fourth magnetic plate 48, causing the limiting plate 46 to be pulled outward and released from the limiting of the marking ball 422. After the switching disk 42 rotates 90 degrees, the flow pipes 44 on both sides will connect with the ventilation groove 423 on the side wall of the loading groove 421. At this time, the airflow from the output end of the vacuum pump 32 will push the marking ball 422, causing it to fall from the ball drop groove 45. Due to the spraying of the pressure nozzle 34, the airflow from the output end of the vacuum pump 32 will carry a certain amount of moisture, which will dissolve the capsule layer on the surface of the marking ball 422, making it easier for the marking ball 422 to crack after being blown to the ground, thus realizing the positioning and marking of the unqualified points, which is convenient for subsequent construction personnel to find and repair, and improves the detection efficiency of the device.

[0042] Reference Figures 1-9 In this invention, during use, the vacuum pump 32 is first turned on, which generates high-pressure suction in the dust collection box 31, causing the baffle plate 33 to flip open and suck dust and impurities from the ground into the dust collection box 31, ensuring that the weight 24 is in direct contact with the road surface and improving detection accuracy. At the same time, the exhaust from the output end of the vacuum pump 32 will drive the fan blades 322 to rotate, thereby driving the turntable 321 to rotate. At this time, the first magnetic plate 323 and the second magnetic plate 354 will come into contact and repel each other magnetically, causing the piston plate 352 to retract into the piston cylinder 351. Under this retraction pressure, the first guide... When the one-way valve in pipe 355 opens, the compressed gas in piston cylinder 351 will also enter water tank 35 through first conduit 355. After the first magnetic plate 323 and the second magnetic plate 354 disengage, the one-way valve in second conduit 356 will be opened by the rebound action of first spring 353, allowing external airflow to supplement piston cylinder 351. This repetition will cause the pressure at the top of the inner cavity of water tank 35 to continuously increase, thereby pushing pressure plate 36 to move down, so that water in water tank 35 is sprayed from pressure nozzle 34 into dust collection box 31, thereby combining with the dust in dust collection box 31 and preventing dust generation.

[0043] Next, push the base plate 1 to move the detection cylinder 2 to the cleaned road surface. At this time, control the first motor 22 to rotate, so that the hammer 24 falls quickly and hits the road surface. After the hammer 24 falls to the ground, the signal transmitting plate 25 set on its side wall will be activated. At this time, the high-elasticity signal source 261, normal signal source 262 and low-elasticity signal source 263 located on the side wall of the detection cylinder 2 will receive the signals at the corresponding positions to determine whether the road surface detection is qualified. At the same time, the output end of the air pump 32 will also deliver airflow to the air guide box 52. At this time, the airflow will blow outward along the airflow holes 51 around the perimeter, so that the hammer 24 gets equal thrust around the side wall, thereby ensuring that the hammer 24 falls in the center, effectively avoiding collision damage to the signal transmitting plate 25 and the signal receiving plate 26, and also avoiding the situation where the hammer 24 reduces the falling gravity after contacting the inner wall of the detection cylinder 2.

[0044] When the high-elasticity signal source 261 or the low-elasticity signal source 263 receives the signal from the signal transmitting board 25, the second motor 43 will be activated, causing the switching disk 42 to rotate 90 degrees clockwise or counterclockwise. During the rotation of the switching disk 42, the third magnetic plate 473 will come into contact with the fourth magnetic plate 48, causing the third magnetic plates 473 on both sides to simultaneously drive the opening and closing plates 472 on both sides to slide outward, causing the limiting plate 46 to be pulled outward, disengaging from the limiting of the marker ball 422, allowing one marker ball 422 to slide to the end of the loading slot 421. After the third magnetic plate 473 disengages from the fourth magnetic plate 48, under the rebound action of the third spring 471, it will cause... The limiting plate 46 is reset, thereby re-limiting the marking ball 422 in the loading slot 421. When the switching plate 42 rotates 90 degrees, the flow pipes 44 on both sides will connect with the ventilation slots 423 on the side wall of the loading slot 421. At this time, the airflow from the output end of the vacuum pump 32 will move along the flow pipe 44 into the ball drop slot 45, thereby pushing the marking ball 422 to fall from the ball drop slot 45. Due to the spraying of the pressure nozzle 34, the airflow from the output end of the vacuum pump 32 will carry a certain amount of moisture, which will melt the capsule layer on the surface of the marking ball 422, making it easier for the marking ball 422 to crack after being blown to the ground, thus achieving the positioning marking of the defective point.

[0045] When the normal signal source 262 receives the signal from the signal transmitting board 25, no positioning mark is needed. At this time, the first motor 22 will drive the winding rod 21 to rotate, causing the counterweight 24 to rise and reset.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic quality detection device for highway engineering, comprising a base plate (1), characterized in that, A detection cylinder (2) is fixedly connected to the end face of the base plate (1). A winding rod (21) is rotatably connected to the inner wall of the detection cylinder (2). A first motor (22) is fixedly connected to the side wall of the detection cylinder (2). The output shaft end of the first motor (22) is fixedly connected to the end of the winding rod (21). A pull rope (23) is wound around the side wall of the winding rod (21). A counterweight (24) is fixedly connected to the bottom end of the pull rope (23). A signal transmitting board (25) is fixedly connected to the side wall of the counterweight (24). A signal receiving board (26) is fixedly connected to the inner wall of the detection cylinder (2). The device further includes: A cleaning component (3) is installed on the end face of the base plate (1) and is used to clean dust and impurities on the road surface. The cleaning component (3) includes a dust collection box (31), which is fixedly connected to the bottom of the base plate (1). An air pump (32) is fixedly connected to the upper end face of the base plate (1). The input end of the air pump (32) is connected to the inner cavity of the dust collection box (31). A baffle plate (33) is rotatably connected to the upper part of the inner wall of the dust collection box (31). A filter plate (331) is fixedly connected inside the dust collection box (31). Pressure nozzles (34) are evenly spaced on the top of the inner cavity of the dust collection box (31). A water tank (35) is fixedly connected to the upper end face of the base plate (1). The bottom of the water tank (35) is connected to the pressure nozzles (34). A pressure plate (36) is slidably connected to the inner wall of the water tank (35). A positioning component (4) is set on the end face of the base plate (1) and is used to mark the non-conforming points. The positioning component (4) includes a loading plate (41), which is fixedly connected to the end face of the base plate (1). A switching plate (42) is rotatably connected to the inner wall of the loading plate (41). A second motor (43) is fixedly connected to the side wall of the loading plate (41). The output shaft of the second motor (43) is fixedly connected to the end of the rotating shaft of the switching plate (42). Loading grooves (421) are opened on both sides of the switching plate (42). A marking ball (422) is slidably connected in the loading groove (421). Ventilation grooves (423) are opened on both sides of the end of the loading groove (421). The detection cylinder (2) has airflow grooves (5) on all four sides. The sidewalls of the airflow grooves (5) have airflow holes (51) at equal intervals. The airflow holes (51) are symmetrically arranged around the cylinder. The sidewalls of the detection cylinder (2) are fixedly connected to an air guide box (52). The air guide box (52) is connected to the inner cavity of the airflow grooves (5). The output end of the air pump (32) is connected to the inner cavity of the air guide box (52).

2. The automatic detection device for highway engineering quality according to claim 1, characterized in that, A turntable (321) is rotatably connected to the side wall of the pipe at the output end of the air pump (32). A wind turbine blade (322) is fixedly connected to the inner wall of the turntable (321). A first magnetic plate (323) is evenly spaced on the side wall of the turntable (321). A piston cylinder (351) is fixedly connected to the side wall of the water tank (35). A piston plate (352) is slidably connected to the inner wall of the piston cylinder (351). A first spring (353) is fixedly connected between the side wall of the piston plate (352) and the piston cylinder (351). A second magnetic plate (354) is fixedly connected to the other side of the piston plate (352). The second magnetic plate (354) and the first magnetic plate (323) are magnetically repelled.

3. The automatic detection device for highway engineering quality according to claim 2, characterized in that, The inner wall of the water tank (35) is fixedly connected to a first conduit (355), which is connected to the inner cavity of the piston cylinder (351). The side wall of the piston cylinder (351) is fixedly connected to a second conduit (356), which is connected to the piston cylinder (351). Both the first conduit (355) and the second conduit (356) are equipped with one-way valves.

4. The automatic detection device for highway engineering quality according to claim 1, characterized in that, Both sides of the loading plate (41) are fixedly connected with flow pipes (44). The ends of the flow pipes (44) on both sides that are close to each other are in contact with the side wall of the loading plate (41). The flow pipes (44) on both sides are connected to the ventilation groove (423). The inner wall of the detection cylinder (2) is provided with a ball drop groove (45). The ends of the flow pipes (44) on both sides that are far apart from each other are respectively connected to the output end of the air pump (32) and the inner cavity of the ball drop groove (45).

5. The automatic quality detection device for highway engineering according to claim 1, characterized in that, The loading slot (421) is slidably connected to the side wall of the limiting plate (46). The loading plate (41) is provided with a switch slot (47). A third spring (471) is fixedly connected to the middle of the switch slot (47). Both ends of the third spring (471) are fixedly connected to the opening and closing plate (472). The opening and closing plate (472) is slidably connected to the inner wall of the switch slot (47). A third magnetic plate (473) is fixedly connected to the side wall of the opening and closing plate (472) on both sides. The bottom of the third magnetic plate (473) is fixedly connected to the side wall of the limiting plate (46).

6. The automatic detection device for highway engineering quality according to claim 5, characterized in that, The loading disk (41) has a fourth magnetic plate (48) fixedly connected to both sides of its inner wall. The fourth magnetic plate (48) and the third magnetic plate (473) are magnetically repelled.

7. The automatic detection device for highway engineering quality according to claim 1, characterized in that, The signal receiving board (26) consists of a high-elasticity signal source (261), a normal signal source (262), and a low-elasticity signal source (263); the high-elasticity signal source (261), the normal signal source (262), and the low-elasticity signal source (263) are all electrically connected to the signal transmitting board (25).

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