Pavement compression resistance inspection device

Abstract

The utility model discloses a road surface compression resistance inspection device, and belongs to the technical field of road surface detection. Comprising a trailer, two sets of first push rods are installed on a trailer frame, a mounting plate is installed at the moving ends of the first push rods, a set of second push rods are installed below the mounting plate, a rotating assembly is installed at the moving ends of the second push rods, and two sets of moving plates are installed at the rotating end of the rotating assembly; the moving plate is installed at the rotating end of the rotating assembly in a linear array mode, supporting parts are installed at the two ends of the moving plate in a sliding mode, the supporting parts are oppositely arranged, a limiting assembly is installed in the center of the moving plate, the limiting assembly is partially in driving connection with the rotating assembly, and the rebound apparatus is installed in the limiting assembly. An annular groove is formed in the outer side of the shell of the rebound apparatus, and the limiting assembly is clamped into the annular groove under the driving of the rotating assembly to clamp and limit the rebound apparatus. According to the utility model, under the cooperation of the first push rod and the second push rod, the limiting assembly and the rotating assembly are installed on the trailer, under the action of the rotating assembly, the resiliometer is fixed, and after the trailer is dragged and moved to a to-be-detected position, rapid detection of a to-be-detected road surface can be realized, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of road surface detection, and in particular relates to a road surface compression resistance inspection device. Background Art

[0002] The highway pavement compression test device is a device specially used to measure the compressive strength of the pavement. It can provide key information about the structural integrity and service life of the pavement. The pavement compression test is essential to ensure highway safety, reduce maintenance costs and extend the service life of the road.

[0003] Existing pavement compression tests usually use non-destructive testing rebound hammers to perform pavement compression tests. This test method evaluates the compressive strength of concrete by measuring the degree of rebound after the concrete surface is hit. This method has the advantages of being light and fast, having little impact on the structure, and having a fast test speed. It is a common means for construction units to quickly check the development of concrete strength. However, existing rebound hammers are mostly tested by manual gripping. This test method is not only inefficient, but also requires a large number of staff to perform the test work at the same time when a large test range is required, resulting in high labor costs. Utility Model Content

[0004] The purpose of the utility model is to provide a road surface compression resistance inspection device to solve the above-mentioned problems existing in the prior art.

[0005] Technical solution: A road surface compression resistance inspection device includes a trailer, two groups of first push rods are installed on the trailer frame, the movable end of the first push rod is installed with a mounting plate, a group of second push rods are installed below the mounting plate, the movable end of the second push rod is installed with a rotating assembly, and two groups of movable plates are installed on the rotating end of the rotating assembly, the linear array of the movable plates is installed on the rotating end of the rotating assembly, support parts are slidably installed at both ends of the movable plate, and the support parts are arranged opposite to each other, a limiting assembly is installed in the center of the movable plate, the limiting assembly is partially connected to the rotating assembly by driving, a rebound tester is installed in the limiting assembly, an annular groove is opened on the outer side of the rebound tester housing, and the limiting assembly is driven by the rotating assembly to be clamped in the annular groove to limit the rebound tester.

[0006] Preferably, the rotating assembly includes a sliding rod installed at the moving end of the first push rod, the other end of the sliding rod is installed with a cover body, the side wall of the cover body is installed with a guide column, the sliding rod is sleeved with a shell, the cover body is located in the shell, and the end of the shell opposite to the sliding rod is rotatably installed with a rotating shaft, and the end of the rotating shaft close to the cover body is installed with a rotating column, the outer wall of the rotating column is provided with a rotating path from top to bottom, and the guide column is partially located in the rotating path, and under the action of the second push rod, the cover body is driven to move up and down along the axis of the shell, so that the guide column moves along the rotating path, driving the rotating column and the rotating shaft to rotate, and a first gear is installed in a linear array on the rotating shaft, and the first gear is meshed and connected to the limit assembly, and under the action of the first gear, the limit assembly is driven to rotate partially to limit the rebound tester.

[0007] Preferably, the rotating assembly also includes two sets of limiting rings, which are rotatably mounted on the rotating shaft, and the upper movable plate is provided with a through hole with an inverted convex cross-section, and the lower movable plate is provided with a groove with an inverted convex cross-section, and the limiting rings are abutted against the through holes or the grooves, and the first gear is located above the limiting rings.

[0008] Preferably, the supporting part includes a support rod, which is slidably mounted on the end of the movable plate, a support ring is mounted on the lower end of the support rod, a return spring is sleeved on the support rod, one end of the return spring abuts against the support ring, and the other end abuts against the movable plate located below, and a foot support is mounted on the lower end of the support rod.

[0009] Preferably, the limit assembly includes a base plate, which is mounted on a movable plate, the base plate is annular, a plurality of guide grooves are provided in a circumferential array on the top surface of the base plate, a plurality of limit plates are placed on the base plate, a guide rod is mounted on the limit plate, the guide rod passes through the limit plate, a cover plate is placed on the limit plate, a plurality of guide rails are provided on the cover plate, one end of the guide rod is located in the guide groove, the other end of the guide rod is located in the guide rail, a circular gear is mounted on the outer circle of the cover plate, and the circular gear is meshed and connected with the rotating assembly.

[0010] Preferably, the side of the limiting plate close to the rebound tester is wrapped with an elastic wrapping layer.

[0011] Beneficial effects: The utility model relates to a road surface compression inspection device. With the cooperation of a first push rod and a second push rod, a limit assembly and a rotating assembly are installed on a trailer, and the rebound tester is fixed under the action of the rotating assembly. By dragging the trailer and moving the trailer to a position to be inspected, a rapid inspection of the road surface to be inspected can be achieved, thereby improving the inspection efficiency.

[0012] Secondly, under the action of the rotating component, the limiting component is driven to rotate partially, so that different models of rebound testers can be limited and fixed, and road surfaces with different road conditions can be tested. There is no need to equip multiple inspection devices for different road conditions, and only the model of the rebound tester needs to be replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a partial schematic diagram of the utility model;

[0014] Figure 2 This is the internal structure diagram of the rotating assembly of the utility model;

[0015] Figure 3 It is a three-dimensional diagram of the limiting component of the utility model;

[0016] Figure 4 The limit assembly explosion of the utility model Figure 1 ;

[0017] Figure 5 The limit assembly explosion of the utility model Figure 2 ;

[0018] Figure 6 It is a partial exploded view of the rotating assembly of the utility model.

[0019] Figures 1 to 6 The figures are marked as follows: 1. second push rod; 2. rotating assembly; 3. moving plate; 4. supporting part; 5. limiting assembly; 6. rebound tester; 7. annular groove; 21. sliding rod; 22. cover body; 23. guide column; 24. shell; 25. rotating shaft; 26. rotating column; 27. rotating path; 28. limiting ring; 29. ​​through hole; 210. groove; 41. support rod; 42. support ring; 43. reset spring; 44. foot support; 51. bottom plate; 52. guide groove; 53. limiting plate; 54. guide rod; 55. cover plate; 56. guide rail; 57. circular gear. DETAILED DESCRIPTION

[0020] like Figures 1 to 6As shown, the utility model provides a technical solution: a road surface compression inspection device, including a trailer, two groups of first push rods are installed on the trailer frame, the movable end of the first push rod is installed with a mounting plate, a group of second push rods 1 are installed below the mounting plate, the movable end of the second push rod 1 is installed with a rotating assembly 2, the rotating end of the rotating assembly 2 is installed with two groups of moving plates 3, the moving plates 3 are linearly arrayed and installed on the rotating end of the rotating assembly 2, support parts 4 are slidably installed at both ends of the moving plates 3, and the support parts 4 are arranged opposite to each other, and under the action of the first push rod pushing down, the mounting plate, the second push rod 1, the rotating assembly 2 and the two groups of moving plates 3 are driven to move downward, wherein the moving plates 3 moves along the guide path of the support part 4, a limiting component 5 is installed in the center of the movable plate 3, and the limiting component 5 is partially connected to the rotating component 2 for driving, and a rebound hammer 6 is installed in the limiting component 5. An annular groove 7 is provided on the outer side of the shell 24 of the rebound hammer 6. The limiting component 5 is driven by the rotating component 2 to be inserted into the annular groove 7 to clamp and limit the rebound hammer 6. Since the limiting component 5 can be adjusted under the drive of the rotating component 2 to place rebound hammers 6 of different models and sizes, different models of rebound hammers 6 can be limited and fixed, and road surfaces with different road conditions can be detected. There is no need to equip multiple inspection devices for different road conditions and road surfaces, and only the model of the rebound hammer 6 needs to be replaced.

[0021] In a further embodiment, the rotating assembly 2 includes a slide bar 21, which is mounted on the moving end of the first push rod, and a cover body 22 is mounted on the other end of the slide bar 21. A guide column 23 is mounted on the side wall of the cover body 22. A shell 24 is sleeved on the slide bar 21, and the cover body 22 is located in the shell body 24. A rotating shaft 25 is rotatably mounted on the end of the shell body 24 opposite to the slide bar 21, and a rotating column 26 is mounted on the end of the rotating shaft 25 close to the cover body 22. A rotating path 27 is opened from top to bottom on the outer wall of the rotating column 26, and the guide column 23 is partially located in the rotating path 27. Under the action of the second push rod 1, the cover body 22 is driven to move up and down along the axis of the shell body 24, so that the guide column 23 moves along the rotating path 27, and the rotating column 26 and the rotating shaft 25 are driven to rotate. When the second push rod 1 is extended, the slide bar 21 moves along the shell body 24 toward the rotating column 26. At this time, the guide column 23 moves downward. Since the guide column 23 is located in the rotating The guide column 23 is in the path 27, so the guide column 23 drives the rotating column 26 to rotate during the movement. A first gear is installed in a linear array on the rotating shaft 25. The first gear is meshed and connected to the limiting assembly 5. Under the cooperation of the rotating column 26 and the rotating shaft 25, the first gear on the rotating shaft 25 is driven to rotate. Under the action of the first gear, the limiting assembly 5 is driven to rotate partially to limit the rebound tester 6. Two groups of limiting rings 28 are installed on the rotating shaft 25. A through hole 29 with an inverted convex cross-section is provided on the upper movable plate 3, and a groove 210 with an inverted convex cross-section is provided on the lower movable plate 3. The limiting ring 28 is installed in contact with the through hole 29 or the groove 210. The first gear is located above the limiting ring 28. The limiting ring 28 is abutted against the through hole 29 or the groove 210. The rebound tester 6 can be close to the road surface during the pushing process of the first push rod to complete the compression test of the road surface.

[0022] In a further embodiment, the support portion 4 includes a support rod 41, a support ring 42, a return spring 43 and a foot support 44, wherein the foot support 44 is in contact with the road surface under the action of the first push rod, the support rod 41 is slidably installed on the end of the movable plate 3, a support ring 42 is installed at the lower end of the support rod 41, a return spring 43 is sleeved on the support rod 41, one end of the return spring 43 abuts against the support ring 42, and the other end abuts against the movable plate 3 located below. After completing the road surface detection, when the first push rod contracts, under the action of the return spring 43, the support rod 41 slides on the movable plate 3, thereby realizing the reset of the support rod 41 and facilitating the next detection.

[0023] In a further embodiment, the limiting assembly 5 includes a bottom plate 51, a limiting plate 53 and a cover plate 55, the bottom plate 51 is mounted on the movable plate 3, a plurality of guide grooves 52 are provided in a circumferential array on the top surface of the bottom plate 51, a plurality of limiting plates 53 are placed on the bottom plate 51, a guide rod 54 is installed on the limiting plate 53, the guide rod 54 passes through the limiting plate 53, a cover plate 55 is placed on the limiting plate 53, the bottom plate 51 and the cover plate 55 are both annular, a plurality of guide rails 56 are provided on the cover plate 55, one end of the guide rod 54 is located in the guide groove 52, the other end of the guide rod 54 is located in the guide rail 56, and the cover plate A circular gear 57 is installed on the outer circle of 55, and the circular gear 57 is meshed with the first gear. With the cooperation of the rotating shaft 25 and the first gear, the circular gear 57 is driven to rotate. At this time, the cover plate 55 rotates together, and under the action of the guide rail 56, the limit plate 53 is driven to move along the moving path of the guide rail 56, so that the limit plate 53 blocks the inner ring of the bottom plate 51 until it abuts against the annular groove 7 of the rebound tester 6 shell, so that the rebound tester 6 can be limited and fixed in the movable plate 3, wherein the side of the limit plate 53 close to the rebound tester 6 is wrapped with an elastic wrapping layer, which effectively avoids scratches on the shell of the rebound tester 6 when the limit plate 53 abuts against the rebound tester 6.

[0024] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A road surface compression inspection device, characterized in that: The invention comprises a trailer, wherein two groups of first push rods are installed on the frame of the trailer, a mounting plate is installed at the movable end of the first push rod, a group of second push rods (1) are installed below the mounting plate, a rotating assembly (2) is installed at the movable end of the second push rod (1), two groups of moving plates (3) are installed at the rotating end of the rotating assembly (2), the moving plates (3) are linearly arrayed and installed at the rotating end of the rotating assembly (2), support parts (4) are slidably installed at both ends of the moving plates (3), the support parts (4) are arranged opposite to each other, a limiting assembly (5) is installed in the center of the moving plate (3), the limiting assembly (5) is partially connected to the rotating assembly (2) by driving, a rebound tester (6) is installed in the limiting assembly (5), an annular groove (7) is provided on the outer side of the shell (24) of the rebound tester (6), and the limiting assembly (5) is driven by the rotating assembly (2) to be clamped in the annular groove (7) to limit the rebound tester (6).

2. A road surface compression inspection device according to claim 1, characterized in that: The rotating assembly (2) comprises a sliding rod (21) mounted on the moving end of the first push rod, a cover body (22) being mounted on the other end of the sliding rod (21), a guide column (23) being mounted on the side wall of the cover body (22), a shell (24) being sleeved on the sliding rod (21), the cover body (22) being located inside the shell body (24), a rotating shaft (25) being rotatably mounted on the end of the shell body (24) opposite to the sliding rod (21), a rotating column (26) being mounted on the end of the rotating shaft (25) close to the cover body (22), and an outer wall of the rotating column (26) A rotation path (27) is provided from top to bottom, and the guide column (23) is partially located in the rotation path (27). Under the action of the second push rod (1), the cover body (22) is driven to move up and down along the axis of the shell (24), so that the guide column (23) moves along the rotation path (27), driving the rotating column (26) and the rotating shaft (25) to rotate. A first gear is installed in a linear array on the rotating shaft (25), and the first gear is meshed with the limiting component (5). Under the action of the first gear, the limiting component (5) is driven to rotate partially to limit the rebound tester (6).

3. A road surface compression inspection device according to claim 2, characterized in that: The rotating assembly (2) further comprises two sets of limiting rings (28), wherein the limiting rings (28) are rotatably mounted on the rotating shaft (25), a through hole (29) having an inverted convex cross section is provided on the upper movable plate (3), and a groove (210) having an inverted convex cross section is provided on the lower movable plate (3), wherein the limiting rings (28) are abuttedly mounted in the through hole (29) or the groove (210), and the first gear is located above the limiting rings (28).

4. A road surface compression inspection device according to claim 1, characterized in that: The support portion (4) comprises a support rod (41), the support rod (41) being slidably mounted on the end of the movable plate (3), a support ring (42) being mounted on the lower end of the support rod (41), a return spring (43) being sleeved on the support rod (41), one end of the return spring (43) abutting against the support ring (42), and the other end abutting against the movable plate (3) located below, and a foot support (44) being mounted on the lower end of the support rod (41).

5. A road surface compression inspection device according to claim 1, characterized in that: The limiting assembly (5) comprises a bottom plate (51), the bottom plate (51) being mounted on the movable plate (3), the bottom plate (51) being annular, a plurality of guide grooves (52) being arranged in a circumferential array on the top surface of the bottom plate (51), a plurality of limiting plates (53) being placed on the bottom plate (51), a guide rod (54) being mounted on the limiting plate (53), the guide rod (54) penetrating the limiting plate (53), a cover plate (55) being placed on the limiting plate (53), a plurality of guide rails (56) being arranged on the cover plate (55), one end of the guide rod (54) being located in the guide groove (52), the other end of the guide rod (54) being located in the guide rail (56), a circular gear (57) being mounted on the outer circle of the cover plate (55), the circular gear (57) being meshingly connected with the rotating assembly (2).

6. A road surface compression inspection device according to claim 5, characterized in that: The side of the limiting plate (53) close to the rebound hammer (6) is wrapped with an elastic wrapping layer.

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