Highway pavement flatness detection frame

Abstract

The utility model relates to the technical field of pavement detection, in particular to a highway pavement flatness detection frame, and solves the problem that a detection pointer or a detection wheel is difficult to adapt to detection of concave-convex planes with different areas in the prior art. A highway pavement flatness detection frame comprises two connecting frames which are symmetrical front and back, connecting plates are fixedly arranged on the connecting frames, two connecting blocks which are symmetrical left and right are connected to the lower ends of the two connecting frames, a mounting plate is fixedly arranged between the two connecting blocks which are adjacent front and back, and two groups of mounting cavities which are symmetrical front and back are formed in the mounting plate; angle detectors and connecting cylinders which are symmetrical front and back are connected into each group of mounting cavities, fixing rods are fixedly arranged at the outer ends of the connecting cylinders, detecting cylinders are rotationally matched with the peripheries of the fixing rods, and two connecting rods which are symmetrical left and right are connected to the upper end of the connecting block; the effect that the concave-convex surfaces with different areas cannot be detected by traditional cylindrical detection equipment is achieved, and the detection result is more comprehensive.

Description

Technical Field

[0001] The utility model relates to the technical field of road surface detection, in particular to a highway road surface flatness detection frame. Background Art

[0002] Pavement flatness refers to the vertical deviation of the pavement surface from the ideal plane. Pavement flatness is an important indicator in pavement evaluation and pavement construction acceptance. It mainly reflects the flatness of the pavement longitudinal section profile curve. When the pavement longitudinal section profile curve is relatively smooth, it means that the pavement is relatively flat, or the flatness is relatively good. Otherwise, it means that the flatness is relatively poor. A good pavement requires good pavement flatness.

[0003] In the prior art, when a detection part, such as a pointer or a rolling wheel, moves against the road surface to detect the road surface flatness, the detection range of the road surface is limited, and multiple detection parts need to be installed to increase the detection range. The installation and disassembly are troublesome and inconvenient for maintenance. During the detection process, the cylindrical detection part has a reduced detection accuracy for concave and convex surfaces of different areas. Utility Model Content

[0004] The purpose of the utility model is to provide a highway pavement flatness detection frame, which is used to overcome the above-mentioned defects in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] According to the utility model, a highway pavement flatness detection frame comprises two front-to-back symmetrical connecting frames, a connecting plate is fixed on the connecting frames, two left-right symmetrical connecting blocks are connected to the lower ends of the two connecting frames, a mounting plate is fixed between the two front-to-back adjacent connecting blocks, two groups of front-to-back symmetrical mounting cavities are opened on the mounting plate, each group of the mounting cavities is connected with a front-to-back symmetrical angle detector and a connecting tube, a torsion spring is arranged between the mounting cavity and the connecting tube, the angle detector is connected with a transmission rod near the end of the connecting tube, the transmission rod is connected to the connecting tube, a fixing rod is fixed at the outer end of the connecting tube, A detection cylinder is rotatably fitted on the outer periphery of the fixing rod, and two left-right symmetrical connecting rods are connected to the upper end of the connecting block. A downwardly opening slot is provided in the connecting frame, and a positioning rod is fixed in the slot. A slider is slidably connected to the positioning rod, and the slider is correspondingly connected to the connecting rod up and down. Pressure detectors are fixed on the outer periphery of the positioning rod and at the ends of the two sliders that are away from each other. A spring is connected between the pressure detector and the slider. A WiFi module is provided on the connecting frame and is electrically connected to the pressure detector and the angle detector, and the WiFi module can be connected to the processor signal at the outer end.

[0007] The beneficial effects of the utility model are:

[0008] The degree and position of the unevenness of the road surface can be obtained by using the detection cylinder that can swing up and down in a circumferential direction during the movement of the mobile vehicle body. When the detection cylinder abuts against the inclined surface, the inclination of the road surface can be obtained through the force conditions at the spring through the connecting blocks connected to the front and rear ends of the mounting plate, and further the unevenness level and inclination of the road surface can be obtained through the pressure detector.

[0009] When facing a smaller concave and convex surface, the detection value can be obtained by detecting the inclination of the detection tube through the angle detector. For a concave and convex surface with a larger surface angle, the detection tube is completely in contact with the concave and convex surface, and the pressure detector can detect the force of the spring to obtain the detection value, thereby achieving the effect that traditional cylindrical detection equipment cannot easily detect concave and convex surfaces of different areas, and the detection result is more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the appearance of the utility model;

[0011] Figure 2 This utility model Figure 1 A schematic diagram of a top view structure;

[0012] Figure 3 This utility model Figure 1 A schematic diagram of the front view structure of

[0013] Figure 4 This utility model Figure 1 A side view structural schematic diagram of;

[0014] Figure 5 This utility model Figure 2 Schematic cross-sectional view of AA in the figure;

[0015] Figure 6 This utility model Figure 3 Schematic cross-section of the middle BB;

[0016] Figure 7 This utility model Figure 4 Schematic cross-section of the CC;

[0017] In the figure:

[0018] 10. Connecting frame; 11. Connecting plate; 12. Connecting block; 13. Mounting plate; 14. Mounting cavity; 15. Angle detector; 16. Connecting tube; 17. Fixing rod; 18. Detection tube; 19. Slot; 20. Positioning rod; 21. Pressure detector; 22. Spring; 23. Slider; 24. Connecting rod; 25. Torsion spring. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there can be an intermediate element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there can be an intermediate element at the same time:

[0021] Embodiment 1:

[0022] Reference Figure 1-Figure 7 According to an embodiment of the utility model, a highway pavement flatness detection frame includes two front-to-back symmetrical connecting frames 10, a connecting plate 11 is fixedly arranged on the connecting frames 10, two left-right symmetrical connecting blocks 12 are connected to the lower ends of the two connecting frames 10, a mounting plate 13 is fixedly arranged between two front-to-back adjacent connecting blocks 12, two groups of front-to-back symmetrical mounting cavities 14 are opened on the mounting plate 13, each group of mounting cavities 14 is connected with a front-to-back symmetrical angle detector 15 and a connecting tube 16, a torsion spring 25 is arranged between the mounting cavity 14 and the connecting tube 16, a transmission rod is connected to the end of the angle detector 15 near the connecting tube 16, the transmission rod is connected to the connecting tube 16, and a fixing rod is fixedly arranged at the outer end of the connecting tube 16 17, a detection cylinder 18 is rotatably fitted on the outer periphery of the fixing rod 17, two left-right symmetrical connecting rods 24 are connected to the upper end of the connecting block 12, a downwardly opening slot 19 is provided in the connecting frame 10, a positioning rod 20 is fixed in the slot 19, a slider 23 is slidably connected to the positioning rod 20, the slider 23 is correspondingly connected to the connecting rod 24 up and down, pressure detectors 21 are fixed on the outer periphery of the positioning rod 20 and at the ends of the two sliders 23 that are away from each other, a spring 22 is connected between the pressure detector 21 and the slider 23, a WiFi module is provided on the connecting frame 10, which is electrically connected to the pressure detector 21 and the angle detector 15, and the WiFi module can be connected to the processor signal at the outer end.

[0023] This program has the following working process:

[0024] The connecting frame 10 is fixedly mounted on the lower end of the mobile vehicle body by a threaded fixing member arranged on the connecting plate 11, so that the detection cylinder 18 at the lower end of the mounting plate 13 abuts against the ground;

[0025] During the movement of the moving vehicle, the detection tube 18 moves synchronously with the moving vehicle. Under normal conditions, when the detection tube 18 contacts the plane, the two adjacent detection tubes 18 on the left and right are Figure 7 As shown in the horizontal arrangement, after the detection cylinder 18 loses the contact with the contact surface, the connection cylinder 16 is subjected to the torsion spring force at the torsion spring 25 to flip the detection cylinder 18 downward, and the torsion spring 25 applies a downward torsion force to the detection cylinder 18, so that when the plane is in an uneven state, the detection cylinder 18 can be turned up and down along the torsion spring force of the torsion spring 25 or overcome the torsion spring force of the torsion spring 25, and then the transmission rod at the angle detector 15 is driven to rotate through the connection cylinder 16, and then the angle detector 15 connected to the transmission rod detects the tilt angle of the detection cylinder 18, and the detection data is obtained and recorded by connecting the angle detector 15 to an external display device and a processor;

[0026] When the connecting frame 10 and the mounting plate 13 follow the forward and backward movement of the moving vehicle body, the mounting plate 13 moves forward and backward according to the contact of the detection tubes 18 at the front and rear ends. When the mounting plate 13 is in a plane inclined forward and backward, the connecting blocks 12 at the front and rear ends of the mounting plate 13 respectively push the slider 23 to slide left and right through the connecting rod 24, so that the front end of the mounting plate 13 is high and the rear end is low or the rear end is high and the front end is low. The pressure detector 21 is connected to the spring 22. During the left and right sliding of the slider 23, the force value at the connection with the spring 22 is detected, and then the front and rear inclination of the plane at this position can be obtained by connecting the spring 22 to an external display device and a processor.

[0027] The spring 22 pushes the slider 23, and under the connection of the connecting rod 24, a downward thrust is applied to the connecting block 12, so that the bowl pool mountain detection tube 18 abuts against the plane.

[0028] It is clear to those skilled in the art that various modifications to the above embodiments can be made without departing from the overall spirit and concept of the present invention. All of them fall within the protection scope of the present invention. The protection scheme of the present invention shall be subject to the claims attached to the present invention.

Claims

1. A road surface roughness detection frame, comprising two front-to-back symmetrical connecting frames (10), characterized in that: A connecting plate (11) is fixedly provided on the connecting frame (10), two left-right symmetrical connecting blocks (12) are connected to the lower ends of the two connecting frames (10), a mounting plate (13) is fixedly provided between two front-to-rear adjacent connecting blocks (12), two groups of front-to-rear symmetrical mounting cavities (14) are opened on the mounting plate (13), each group of the mounting cavities (14) is connected to a front-to-rear symmetrical angle detector (15) and a connecting tube (16), a fixing rod (17) is fixedly provided on the outer end of the connecting tube (16), a detection tube (18) is rotatably fitted on the outer periphery of the fixing rod (17), and two left-to-right symmetrical connecting rods (24) are connected to the upper end of the connecting block (12).

2. A road surface flatness detection stand according to claim 1, characterized in that: The connecting frame (10) is provided with a downwardly opening slot (19), a positioning rod (20) is fixedly provided in the slot (19), a slider (23) is slidably connected to the positioning rod (20), the slider (23) is correspondingly connected to the connecting rod (24) up and down, a pressure detector (21) is fixedly provided on the outer periphery of the positioning rod (20) and at the ends of the two sliders (23) that are away from each other, and a spring (22) is connected between the pressure detector (21) and the slider (23).

3. A road surface flatness detection rack according to claim 2, characterized in that: A torsion spring (25) is provided between the installation cavity (14) and the connecting tube (16); the angle detector (15) is connected to a transmission rod at the end close to the connecting tube (16); and the transmission rod is connected to the connecting tube (16).

4. A road surface flatness detection stand according to claim 3, characterized in that: The connection frame (10) is provided with a WiFi module which is electrically connected to the pressure detector (21) and the angle detector (15), and the WiFi module can be connected to an external processor signal.

5. A road surface flatness detection stand according to claim 4, characterized in that: The upper and lower ends of the connecting rod (24) are correspondingly connected to the sliding block (23), and the front and rear ends of the mounting plate (13) are slidably matched with the two connecting frames (10).

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