Road engineering pavement quality detection device

By designing a road surface quality inspection device with integrated sampling, flatness detection and fatigue detection functions, the problem of difficulty in meeting multiple inspection needs in the existing technology is solved, and comprehensive and accurate inspection of road surface quality is achieved, saving time and cost, and ensuring consistency of inspection results.

CN119859954APending Publication Date: 2025-04-22YINGSHANG COUNTY TRANSPORTATION BUREAU
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Patent Information

Application Number
CN202411793913.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-04-22

AI Technical Summary

Technical Problem

In the road quality inspection of the prior art in highway projects, it is difficult to meet the needs of sampling, flatness detection and fatigue detection at the same time, resulting in the comprehensiveness and accuracy of the inspection being affected.

Method used

A highway engineering pavement quality detection device is designed, integrating sampling detection components, flatness detection components and pavement detection components. Through the comprehensive use of these components, sampling of pavement materials, evaluation of flatness and fatigue detection can be achieved.

Benefits of technology

The device can detect the overall quality of the road surface from multiple dimensions, save inspection time and cost, ensure consistency of inspection results, reduce manual errors and operational errors, and reduce post-maintenance and repair costs.

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Abstract

The invention discloses a highway engineering pavement quality detection device, and relates to the technical field of highway engineering. Comprising a base, universal wheels and lifting supporting legs, the universal wheels and the lifting supporting legs are installed at the bottom end of the base, and the sampling detection assembly is arranged on one side of the top end of the base and used for sampling a highway pavement; and the flatness detection assembly is arranged on the other side of the top end of the base and used for detecting the flatness of the road surface. A material sample can be obtained through the arranged sampling detection assembly and used for analyzing material components and performance, the flatness detection assembly can evaluate the road surface smoothness, the road surface detection assembly can detect the durability and crack resistance of the road surface, and comprehensive detection can ensure that the overall quality of the road surface is detected from multiple dimensions; and a plurality of detection functions are integrated, so that repeated detection by using a plurality of devices is avoided, and time and cost required by engineering detection are saved.
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Description

Technical Field

[0001] The invention relates to the technical field of highway engineering, in particular to a road surface quality detection device for highway engineering. Background Art

[0002] Highway engineering refers to the survey, measurement, design, construction, maintenance, and management of highway structures. Highway engineering structures include: roadbed, pavement, bridges, culverts, tunnels, drainage systems, safety protection facilities, greening and traffic monitoring facilities, as well as houses, workshops, and other service facilities used for construction, maintenance, and monitoring.

[0003] At present, road quality inspection usually relies on manual measurement, which is not only time-consuming and labor-intensive, but also difficult to accurately assess fatigue, flatness, and sampling difficulties. Traditional inspection devices have single functions and cannot simultaneously meet the needs of road sampling, flatness inspection, and fatigue inspection, affecting the comprehensiveness and accuracy of the inspection. Therefore, a highway engineering road quality inspection device is proposed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a road surface quality detection device for highway engineering to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a road engineering pavement quality detection device, comprising a base and a universal wheel and a lifting support foot installed at the bottom of the base, a sampling detection component, arranged on one side of the top of the base, and used to sample the road surface; a flatness detection component, arranged on the other side of the top of the base, and used to detect the flatness of the road surface;

[0006] A road surface detection component is arranged between the sampling detection component and the flatness detection component, and the road surface detection component is used to detect road surface fatigue;

[0007] The auxiliary component is arranged at the bottom end of the base, and is used for assisting the sampling of the sampling and detection component.

[0008] As a specific solution of the technical solution of the present application, the sampling detection component includes a support frame, which is symmetrically arranged on one side of the top of the base, and a threaded rod and a support rod are respectively arranged between the inner side of the top of the support frame and the top of the base, and a movable hole is opened on the outer wall of one side of the support frame.

[0009] As a specific scheme of the technical solution of the present application, the outer wall of the threaded rod is threadedly connected with a threaded sleeve, and the outer wall of the support rod is movably provided with a movable block. One end of the threaded sleeve and the movable block both pass through the outside of the movable hole and are equipped with a movable plate. The movable plate, the threaded sleeve and the movable block are an integrally formed structure. A mounting hole is provided at the top of the movable plate, and a fixed frame is connected to the inner wall of the mounting hole through a screw and a nut. The fixed frame is a U-shaped structure, and a sampling head is rotatably provided at the center of the bottom end of the fixed frame.

[0010] As a specific scheme of the technical solution of the present application, the flatness detection component includes a support plate, the support plate is a T-shaped structure, a screw rod and a fixed rod are respectively installed on the inner side of the top of the support plate and the top of the base, the fixed rod is located on both sides of the screw rod, and the outer walls of the screw rod and the fixed rod are movably provided with a connecting seat, a fixed block is installed on the outer side of the connecting seat, a sensor is installed at the bottom end of the fixed block, a spring is arranged around the outer wall of the sensor, and a connecting block is installed at the bottom end of the sensor, the connecting block is an L-shaped structure, hinged seats are installed on the outer sides of both ends of the connecting seat, a mounting block is hinged on the central inner wall of the hinged seat, and a telescopic ruler is installed on the outer side of the mounting block.

[0011] As a specific solution of the technical solution of the present application, a limit buckle is installed on the outer side of one end of the base, the limit buckle is a U-shaped structure, and the limit buckle is adapted to the connecting block. The inner wall of one side of the connecting block is connected to a connecting rod by bolts, and a detection roller is rotatably arranged between the connecting rods.

[0012] As a specific solution of the technical solution of the present application, the road surface detection component includes a second threaded rod and a fixed column, the second threaded rod is located between the support plate and the top of the base, the fixed column is located between the support frame and the top of the base, and the outer walls of the second threaded rod and the fixed column are both movably provided with connecting plates, and a rotating shaft is rotatably provided at the center position of the connecting plate.

[0013] As a specific solution of the technical solution of the present application, a connecting frame is installed on the top of the rotating shaft, an integrally formed rack is installed on the inner wall of the connecting frame, a connecting column is rotatably arranged on the top of the connecting plate, the top of the connecting column passes through the inner wall of the bottom end of the connecting frame and is fixedly connected with a gear, the gear is meshed with the rack, an installation frame is installed on the top of the connecting frame, the installation frame is a hexagonal structure, and a mobile power supply is installed on the top of the installation frame.

[0014] As a specific solution of the technical solution of the present application, four electric telescopic rods are installed on the outer wall of the mounting frame, and a hinge hole is opened at the telescopic end of the electric telescopic rod, a hinge plate is hinged in the hinge hole, and a mounting rod is movably provided on the inner wall of the other end of the hinge plate, a test wheel is rotatably provided on the outer side of the mounting rod near the bottom end, and limiting holes are opened on the outer wall of the hinge plate and the mounting rod, and positioning pins are movably provided in the limiting holes.

[0015] As a specific scheme of the technical solution of the present application, the auxiliary component includes an auxiliary rod, the top of the auxiliary rod is connected to the bottom of the base, and a sliding groove is provided on the outer wall of one side of the auxiliary rod, a slider is slidably arranged in the sliding groove, an integrally formed hinged rod is installed at the bottom of the slider, positioning holes are provided on the outer side of the front side of the slider and the inner wall of the bottom end of the sliding groove, a positioning rod is movably arranged in the positioning hole, and an auxiliary ring is movably arranged at the other end of the hinged rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The highway engineering pavement quality detection device can obtain material samples for analyzing material composition and performance through the sampling detection component. The flatness detection component can evaluate the smoothness of the pavement, and the pavement detection component can detect the durability and crack resistance of the pavement. The comprehensive detection can ensure the overall quality of the pavement from multiple dimensions. The integration of multiple detection functions avoids the use of multiple devices for repeated detection, saving the time and cost required for engineering detection. Multiple detection components are integrated on one device, which helps to unify the detection standards, ensure the consistency of the results of each detection, and avoid the errors and deviations caused by different detection methods and tools. At the same time, the automated detection process can reduce human errors and operational errors, and reduce the cost of later maintenance and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall axial side structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the sampling and detection component of the present invention;

[0020] Figure 3 It is a schematic side view of the sampling and detection assembly of the present invention;

[0021] Figure 4 It is a schematic cross-sectional view of the overall structure of the present invention;

[0022] Figure 5 For the present invention Figure 4 A is an enlarged schematic diagram;

[0023] Figure 6 It is a schematic diagram of the overall structure of the flatness detection assembly of the present invention;

[0024] Figure 7 It is a schematic diagram of the top view of the structure of the present invention;

[0025] Figure 8 It is a schematic diagram of a flatness detection assembly of the present invention;

[0026] Fig. 9 For the present invention Figure 8 A magnified schematic diagram of B;

[0027] Fig.10 It is a schematic diagram of the auxiliary component structure of the present invention.

[0028] In the figure: 1, base; 101, universal wheel; 102, lifting support foot; 2, sampling detection component; 201, support frame; 202, threaded rod; 203, support rod; 204, moving hole; 205, moving plate; 206, mounting hole; 207, fixed frame; 208, sampling head; 3, flatness detection component; 301, support plate; 302, screw rod; 303, fixed rod; 304, connecting seat; 305, hinged seat; 306, telescopic ruler; 307, sensor; 308, spring; 309, limit buckle; 310, connecting block; 3 11. Connecting rod; 312. Detection roller; 313. Fixed block; 4. Road surface detection assembly; 402. Fixed column; 403. Connecting plate; 404. Rotating shaft; 405. Connecting frame; 406. Rack; 407. Gear; 408. Mounting frame; 409. Electric telescopic rod; 410. Articulated plate; 411. Test wheel; 412. Limiting hole; 413. Locating pin; 5. Mobile power supply; 6. Auxiliary assembly; 601. Auxiliary rod; 602. Slide groove; 603. Locating hole; 604. Sliding block; 605. Articulated rod; 606. Auxiliary ring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that, in the description of the present invention, the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] Furthermore, it should be understood that for the sake of ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0032] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not require further detailed discussion and description in the description of the subsequent drawings.

[0033] like Figure 1-Figure 10 As shown, the present invention provides a technical solution: a road engineering pavement quality detection device, comprising a base 1 and a universal wheel 101 and a lifting support foot 102 installed at the bottom of the base 1, a sampling detection component 2, arranged on one side of the top of the base 1, and the sampling detection component 2 is used to sample the road surface; a flatness detection component 3, arranged on the other side of the top of the base 1, and the flatness detection component 3 is used to detect the flatness of the road surface;

[0034] A road surface detection component 4 is arranged between the sampling detection component 2 and the flatness detection component 3, and the road surface detection component 4 is used to detect road surface fatigue;

[0035] The auxiliary component 6 is arranged at the bottom end of the base 1 , and is used for assisting the sampling of the sampling and detection component 2 .

[0036] like Figures 1 to 10 As shown, in order to facilitate sampling and analysis of road quality, a sampling structure is installed on one side of the top of the base 1. Specifically, the sampling and detection component 2 includes a support frame 201, which is symmetrically arranged on one side of the top of the base 1, and a threaded rod 202 and a support rod 203 are respectively arranged between the inner side of the top of the support frame 201 and the top of the base 1, and a movable hole 204 is opened on the outer wall of one side of the support frame 201. It should be clear that in the embodiment of the present application, the power source of the sampling and detection component 2 is a motor, and the motor is electrically connected to the mobile power supply 5. Figure 2 It can be seen that the output end of the motor is connected to the threaded rod 202, and the output end of the motor is also connected to the sampling head 208, so the motor can drive the threaded rod 202 and the sampling head 208 to rotate. It should also be clear that a U-shaped hole is opened on the top of the base 1, and the U-shaped hole can facilitate the rise and fall of the sampling head 208.

[0037] The outer wall of the threaded rod 202 is threadedly connected with a threaded sleeve, and the outer wall of the support rod 203 is movably provided with a movable block. One end of the threaded sleeve and the movable block passes through the outside of the movable hole 204 and is installed with a movable plate 205. The movable plate 205 is an integrally formed structure with the threaded sleeve and the movable block. A mounting hole 206 is provided at the top of the movable plate 205. The inner wall of the mounting hole 206 is connected with a fixed frame 207 through a screw and a nut. The fixed frame 207 is a U-shaped structure, and a sampling head 208 is rotatably provided at the bottom center of the fixed frame 207. It should be clear that in the embodiment of the present application, a movable hole 204 is provided on one side of the support frame 201. The movable hole 204 is provided so that it can be connected to the movable plate 205 for easy up and down movement, and a mounting hole 206 is provided on the top of the movable plate 205. The mounting hole 206 can be used to fix the fixed frame 207 with bolts. Figure 2 It can be seen that the fixed frame 207 is a U-shaped structure, and the motor is installed on the inner wall of the bottom end of the fixed frame 207. However, the output end of the motor passes through the outer wall of the bottom end of the fixed frame 207 and is fixed to the sampling head 208, so that the sampling head 208 can be driven to rotate. From the foregoing, it can be seen that the sampling head 208 can drive the movable plate 205 to rise and fall through the rotation of the threaded rod 202, thereby driving the sampling head 208 to rise and fall. In the present application, there is no restriction on the lifting and lowering of the sampling head 208, and it can be any structure that can make the sampling head 208 rise and fall, such as a sprocket and chain, an electric slide rail and an electric slider, etc. Since it is a prior art, it will not be described here.

[0038] like Figures 1 to 10As shown, in order to detect the flatness of the road surface after the road surface construction of the highway engineering is completed, the flatness of the road surface is detected by setting a flatness detection component 3. Specifically, the flatness detection component 3 includes a support plate 301, and the support plate 301 is a T-shaped structure. A screw rod 302 and a fixed rod 303 are respectively installed on the inner side of the top of the support plate 301 and the top of the base 1. The fixed rod 303 is located on both sides of the screw rod 302. The outer walls of the screw rod 302 and the fixed rod 303 are movably provided with a connecting seat 304, and a fixed block 313 is installed on the outer side of the connecting seat 304. A sensor 307 is installed at the bottom end of the fixed block 313. A spring 308 is arranged around the outer wall of the sensor 307, and a connecting block 310 is installed at the bottom end of the sensor 307. The connecting block 310 is an L-shaped structure. Articulated seats 305 are installed on the outer sides of both ends of the connecting seat 304. A mounting block is hinged on the central inner wall of the articulated seat 305, and a telescopic ruler 306 is installed on the outer side of the mounting block. A limit buckle 309 is installed on the outer side of one end of the base 1. The limit buckle 309 is a U-shaped structure, and the limit buckle 309 is adapted to the connecting block 310. A connecting rod 311 is connected to the inner wall of one side of the connecting block 310 by bolts, and a detection roller 312 is rotatably arranged between the connecting rods 311. It should be clear that in the embodiment of the present application, the power source of the flatness detection component 3 is also a motor, and the motor is electrically connected to the mobile power supply 5. The motor can drive the screw rod 302 to rotate, and the rotating screw rod 302 will cause the connecting seat 304 to descend. As can be seen from the foregoing, hinged seats 305 are installed on both ends of the connecting seat 304, and a mounting block is installed on the central inner wall of the hinged seat 305. The mounting block and the hinged seat 305 are locked by bolts, and a telescopic ruler 306 is installed at one end of the mounting block. The telescopic ruler 30 6 can measure the distance between the edge of the road surface and the area where the flatness needs to be measured, without the need for an external ruler to measure. It should also be clear that, as can be seen from the foregoing, the connecting seat 304 can move up and down, a fixing block 313 is installed on the front outer side of the connecting seat 304, and a sensor 307 is installed at the bottom end of the fixing block 313. A retractable spring 308 is arranged around the outer wall of the sensor 307, and a connecting block 310 is installed on the other end of the sensor 307 and the spring 308. Fig. 9It can be seen that the connecting block 310 is an L-shaped structure, and a limit buckle 309 is installed on one end of the base 1. The limit buckle 309 is a U-shaped structure. The connecting block 310 can move freely between the inner wall of the limit buckle 309 and the base 1. It should also be clear that, as can be seen from the previous text, a connecting rod 311 that can be adjusted in angle is connected by bolts on one side of the connecting block 310, and a detection roller 312 is rotatably arranged between the connecting rods 311. When the detection roller 312 rolls, when the road surface is uneven, it can drive the connecting block 310 to move up and down, and a sensor 307 and a spring 308 are installed on the connecting block 310. The spring 308 will shrink, and the sensor 307 is a displacement shrinkage sensor, so that the detected unevenness can be transmitted to the control system of the peripheral device, and the control system of the peripheral device records and analyzes the unevenness detected by the sensor 307.

[0039] like Figures 1 to 10 As shown, a road surface detection component 4 capable of detecting road surface fatigue resistance is arranged between the sampling detection component 2 and the flatness detection component 3. The road surface detection component 4 uses an external motor as a power source, and the motor is electrically connected to the mobile power supply 5. Specifically, the road surface detection component 4 includes a second threaded rod and a fixed column 402, the second threaded rod is located between the support plate 301 and the top of the base 1, the fixed column 402 is located between the support frame 201 and the top of the base 1, and the outer walls of the second threaded rod and the fixed column 402 are both movably provided with a connecting plate 403, and a rotating shaft 404 is rotatably provided at the center position of the connecting plate 403. A connecting frame 405 is installed at the top of the rotating shaft 404, and an integrally formed rack 406 is installed on the inner wall of the connecting frame 405. A connecting column is rotatably arranged at the top of the connecting plate 403. The top of the connecting column penetrates the inner wall of the bottom end of the connecting frame 405 and is fixedly connected with a gear 407. The gear 407 is meshed with the rack 406. A mounting frame 408 is installed at the top of the connecting frame 405. The mounting frame 408 is a hexagonal structure, and a mobile power supply 5 is installed at the top of the mounting frame 408. Four electric telescopic rods 409 are installed on the outer wall of the mounting frame 408. A hinge hole is provided at the telescopic end of the electric telescopic rod 409, and a hinge plate 410 is hinged in the hinge hole. A mounting rod is movably arranged on the inner wall of the other end of the hinge plate 410. A test wheel 411 is rotatably arranged near the bottom end of the outer side of the mounting rod, and a limit hole 412 is provided on the outer wall of the hinge plate 410 and the mounting rod, and a positioning pin 413 is movably arranged in the limit hole 412. It should be clear that in the embodiment of the present application, the connecting plate 403 is mounted on the outer wall of the second threaded rod and the fixing column 402, and the second threaded rod is connected to the output end of the motor. It should also be clear that a rotating shaft 404 is rotatably arranged at the center of the connecting plate 403, and a connecting frame 405 is installed on the top of the rotating shaft 404, and an integrally formed rack 406 is installed on the inner wall of the connecting frame 405. Figure 5It can be seen that a motor is also installed on the bottom end of the connecting plate 403, and the output end of the motor passes through the inner wall of the bottom end of the connecting frame 405 and is connected to the gear 407. When the gear 407 rotates, it will drive the rack 406 to rotate, and the rack 406 is an integrally formed structure with the connecting frame 405, so that the connecting frame 405 can be rotated. As can be seen from the foregoing, the connecting frame 405 and the connecting plate 403 are connected by a rotating shaft 404, so the connecting frame 405 can rotate, and a hexagonal mounting frame 408 is installed on the top of the connecting frame 405, and an electric telescopic rod 409 is installed on the outer wall of the mounting frame 408. The electric telescopic rod 409 can drive the test wheel 411 to adjust the length, and at the same time, a lever is opened at the other end of the electric telescopic rod 409. A hinge hole is provided, in which a hinge plate 410 is installed by bolts. As can be seen from the foregoing, the hinge plate 410 is a hollow structure, and a mounting rod is movably arranged on the inner wall of the hinge plate 410. Limiting holes 412 are provided on the mounting rod and the outer walls of the hinge plate 410 at the same time, and a positioning pin 413 is installed in the limiting hole 412. The positioning pin 413 can fix and limit the mounting rod, and when the test wheel 411 installed on the mounting rod is rotated, the fatigue resistance of the road surface can be tested. At the same time, it should be clear that when the fatigue resistance of the road surface does not need to be tested, the electric telescopic rod 409 can be contracted and the mounting rod can be moved to the end of the hinge plate 410, and after being fixed by the positioning pin 413, the test wheel 411 can be retracted and placed on the base 1.

[0040] like Figures 1 to 10 As shown, it can be known from the foregoing that an auxiliary component 6 is installed on the bottom end of the base 1. The auxiliary component 6 is for the sampling detection component 2 to perform auxiliary protection on the sampling head 208 when sampling on the road surface through the sampling head 208. Specifically, the auxiliary component 6 includes an auxiliary rod 601, the top of the auxiliary rod 601 is connected to the bottom end of the base 1, and a slide groove 602 is provided on the outer wall of one side of the auxiliary rod 601, a slider 604 is slidably arranged in the slide groove 602, and an integrally formed hinged rod 605 is installed at the bottom end of the slider 604, and positioning holes 603 are provided on the outer side of the front side of the slider 604 and the inner wall of the bottom end of the slide groove 602, a positioning rod is movably arranged in the positioning hole 603, and an auxiliary ring 606 is movably arranged at the other end of the hinged rod 605. It should be clear that in the embodiment of the present application, when the sampling head 208 samples the road surface, the slider 604 moves in the slide groove 602 opened on the auxiliary rod 601, and then the auxiliary ring 606 hinged on the hinged rod 605 is opened, and then the external positioning rod is inserted into the positioning hole 603 to fix the slider 604 to prevent the slider 604 from moving left and right in the slide groove 602. When the sampling head 208 is lowered and placed in contact with the road surface, the auxiliary ring 606 can protect the contact position between the sampling head 208 and the road surface to prevent the operator from touching the sampling head 208 and causing injury.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A road surface quality detection device for a highway engineering project, comprising a base (1) and a universal wheel (101) and a lifting support foot (102) mounted at the bottom end of the base (1), characterized in that: A sampling detection component (2) is arranged on one side of the top of the base (1), and the sampling detection component (2) is used to sample the road surface; a flatness detection component (3) is arranged on the other side of the top of the base (1), and the flatness detection component (3) is used to detect the flatness of the road surface; A road surface detection component (4) is arranged between the sampling detection component (2) and the flatness detection component (3), and the road surface detection component (4) is used to detect road surface fatigue; The auxiliary component (6) is arranged at the bottom end of the base (1), and the auxiliary component (6) is used to assist the sampling of the sampling and detection component (2).

2. A road engineering pavement quality detection device according to claim 1, characterized in that: The sampling detection assembly (2) comprises a support frame (201), the support frame (201) being symmetrically arranged on one side of the top end of the base (1), and a threaded rod (202) and a support rod (203) being respectively arranged between the inner side of the top end of the support frame (201) and the top end of the base (1), and a movable hole (204) being provided on an outer wall of one side of the support frame (201).

3. A road engineering pavement quality detection device according to claim 2, characterized in that: The outer wall of the threaded rod (202) is threadedly connected with a threaded sleeve, and the outer wall of the support rod (203) is movably provided with a movable block. One end of the threaded sleeve and the movable block both penetrate the outer side of the movable hole (204) and are provided with a movable plate (205). The movable plate (205) is an integrally formed structure with the threaded sleeve and the movable block. A mounting hole (206) is provided at the top of the movable plate (205). A fixing frame (207) is connected to the inner wall of the mounting hole (206) via a screw and a nut. The fixing frame (207) is a U-shaped structure, and a sampling head (208) is rotatably provided at the center of the bottom end of the fixing frame (207).

4. A road engineering pavement quality detection device according to claim 1, characterized in that: The flatness detection assembly (3) comprises a support plate (301), the support plate (301) being a T-shaped structure, a screw rod (302) and a fixed rod (303) being respectively mounted on the inner side of the top end of the support plate (301) and the top end of the base (1), the fixed rod (303) being located on both sides of the screw rod (302), a connecting seat (304) being movably mounted on the outer walls of the screw rod (302) and the fixed rod (303), a fixed block (313) being mounted on the outer side of the connecting seat (304), a sensor (307) being mounted on the bottom end of the fixed block (313), a spring (308) being mounted around the outer wall of the sensor (307), and a connecting block (310) being mounted on the bottom end of the sensor (307), the connecting block (310) being an L-shaped structure, hinged seats (305) being mounted on the outer sides of both ends of the connecting seat (304), a mounting block being hingedly mounted on the central inner wall of the hinged seat (305), and a telescopic ruler (306) being mounted on the outer side of the mounting block.

5. A road engineering pavement quality detection device according to claim 1, characterized in that: A limit buckle (309) is installed on the outer side of one end of the base (1); the limit buckle (309) is a U-shaped structure and is compatible with the connecting block (310); a connecting rod (311) is connected to the inner wall of one side of the connecting block (310) via bolts; a detection roller (312) is rotatably arranged between the connecting rods (311).

6. A road engineering pavement quality detection device according to claim 1, characterized in that: The road surface detection assembly (4) comprises a second threaded rod and a fixed column (402), the second threaded rod being located between the support plate (301) and the top of the base (1), the fixed column (402) being located between the support frame (201) and the top of the base (1), the second threaded rod and the fixed column (402) both having a connecting plate (403) movably disposed on their outer walls, and a rotating shaft (404) rotatably disposed at the center of the connecting plate (403).

7. A road engineering pavement quality detection device according to claim 6, characterized in that: A connecting frame (405) is installed at the top of the rotating shaft (404), an integrally formed rack (406) is installed on the inner wall of the connecting frame (405), a connecting column is rotatably arranged at the top of the connecting plate (403), the top of the connecting column penetrates the inner wall of the bottom end of the connecting frame (405) and is fixedly connected to a gear (407), the gear (407) is meshed with the rack (406), a mounting frame (408) is installed at the top of the connecting frame (405), the mounting frame (408) is a hexagonal structure, and a mobile power source (5) is installed at the top of the mounting frame (408).

8. A road engineering pavement quality detection device according to claim 7, characterized in that: Four electric telescopic rods (409) are installed on the outer wall of the installation frame (408), and a hinge hole is provided at the telescopic end of the electric telescopic rod (409), a hinge plate (410) is hinged in the hinge hole, and a mounting rod is movably provided on the inner wall of the other end of the hinge plate (410), and a test wheel (411) is rotatably provided on the outer side of the mounting rod near the bottom end, and the hinge plate (410) and the outer wall of the mounting rod are both provided with a limit hole (412), and a positioning pin (413) is movably provided in the limit hole (412).

9. A road engineering pavement quality detection device according to claim 1, characterized in that: The auxiliary component (6) comprises an auxiliary rod (601), the top end of the auxiliary rod (601) is connected to the bottom end of the base (1), and a slide groove (602) is provided on the outer wall of one side of the auxiliary rod (601), a slider (604) is slidably arranged in the slide groove (602), an integrally formed hinge rod (605) is installed at the bottom end of the slider (604), positioning holes (603) are provided on the outer side of the front side of the slider (604) and the inner wall of the bottom end of the slide groove (602), a positioning rod is movably arranged in the positioning hole (603), and an auxiliary ring (606) is movably arranged at the other end of the hinge rod (605).