Roadbed pavement deflection detection device

Abstract

The utility model discloses a roadbed pavement deflection detection device, which comprises a frame body, a supporting assembly, a limiting assembly and a testing assembly, the bottom of the frame body is provided with the supporting assembly, the middle part of one side of the supporting assembly is provided with the limiting assembly, and the middle part of the limiting assembly is provided with the testing assembly. The limiting assembly comprises a limiting frame, a rubber pad, a spring piece, a fixing block and a sliding rail, the rubber pad is arranged at one end of the limiting frame, and the spring piece is arranged in the other end of the limiting frame. According to the roadbed pavement deflection detection device, after being assembled, the detection assembly is placed in the middle of the frame body, fixed and supported by the limiting frames on the two sides of the bottom end and then moved through bottom rollers, the rollers are retracted into the base through a built-in telescopic assembly, then the bottom of the base makes contact with the ground, and stable placement of the deflection detection device is completed; and then the external grounding pin passes through the support plate to carry out auxiliary stable support, so that the detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of deflection detection, in particular to a roadbed and pavement deflection detection device. Background Art

[0002] The deflection meter is suitable for measuring the rebound deflection value of the pavement to evaluate the overall strength of the pavement. Deflection is one of the important technical indicators for highway design and highway engineering quality evaluation. It reflects the overall strength of all layers of the pavement. The strength of the roadbed is generally reflected by the rebound modulus. If the deflection value is too large, the deformation will be greater and the pavement layers will be more likely to break. The reason for the large deflection value is generally related to the material properties, thickness and integrity of the pavement layers.

[0003] The existing roadbed and pavement deflection detection device needs to be assembled in advance when used, which is not convenient to carry and is not convenient to move at will for transposition detection during the detection process, resulting in reduced detection effect and accuracy and inconvenient operation. For this reason, we propose a roadbed and pavement deflection detection device. Utility Model Content

[0004] The purpose of the utility model is to provide a roadbed and pavement deflection detection device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a roadbed and pavement deflection detection device, comprising a frame, a support assembly, a limit assembly and a test assembly, wherein a support assembly is arranged at the bottom of the frame, and a limit assembly is arranged in the middle of one side of the support assembly, a test assembly is arranged in the middle of the limit assembly, the limit assembly comprises a limit frame, a rubber pad, a spring member, a fixed block and a slide rail, and a rubber pad is arranged at one end of the limit frame, a spring member is arranged inside the other end of the limit frame, and a fixed block is arranged at the end of the spring member, and slide rails are arranged in the middle of both sides of the fixed block.

[0006] Furthermore, the limit frame is an elastic structure through the spring member and the fixing block, and the limit frame and the rubber pad are integrated.

[0007] Furthermore, the support assembly includes a base, a support plate, a telescopic assembly and a bottom plate, and support plates are provided on both sides of the outer end of the base, telescopic assemblies are provided at both ends of the inner part of the base, and a bottom plate is provided at the bottom of the telescopic assembly.

[0008] Furthermore, the bottom plate forms a telescopic structure with the base through a telescopic assembly, and the base and the support plate are fixedly connected.

[0009] Furthermore, the test assembly includes a bearing block, a limiting slot, a drop hammer assembly and a rod body, and a limiting slot is provided in the middle of the bearing block, a rod body is provided at the top of the bearing block, and a drop hammer assembly is provided at the end of the rod body.

[0010] Furthermore, the limiting component wraps the bearing block, and the size of the limiting groove matches the end face size of the limiting component.

[0011] Furthermore, the frame includes a support column, an inclined rod and a storage box, and the inclined rod is provided at one end of the support column, and the storage box is provided in the middle of the support column.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the detection component is assembled and then placed in the middle of the frame, fixedly supported by the limit frames on both sides of the bottom, and then moved by the bottom rollers, and the rollers are retracted into the base through the built-in telescopic component, and then the bottom of the base contacts the ground, completing the stable placement of the deflection detection device, and then the external ground pin passes through the support plate to provide auxiliary stable support, thereby increasing the accuracy of the detection.

[0013] The road deflection detection device operates in a cart manner. The bottom rollers make the device easy to move and increase stability during the detection process when it is stored. The rollers are retracted into the base through the built-in telescopic assembly, and then the bottom of the base contacts the ground, completing the stable placement of the deflection detection device and avoiding displacement of the overall position caused by the rolling of the rollers. Since the support plate is flush with the bottom of the base, an external ground pin can be passed through the support plate to provide auxiliary stable support to ensure safe use.

[0014] The limit groove is used to cooperate with the limit frame. When the detection device is placed in the middle of the frame, in order to ensure stable support, the spring part inside the limit frame is pressed against the limit groove in the middle of the load-bearing block to limit the load-bearing block, thereby preventing the load-bearing block from rebounding during the subsequent drop hammer operation, causing the placement position to shift, resulting in reduced detection effect and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a side view of the structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the limiting component of the utility model.

[0018] In the figure: 1. frame; 101. support column; 102. diagonal rod; 103. storage box; 2. support assembly; 201. base; 202. support plate; 203. telescopic assembly; 204. bottom plate; 3. limit assembly; 301. limit frame; 302. rubber pad; 303. spring member; 304. fixing block; 305. slide rail; 4. test assembly; 401. bearing block; 402. limit slot; 403. drop hammer assembly; 404. rod body. DETAILED DESCRIPTION

[0019] like Figure 1-2 As shown, a roadbed and pavement deflection detection device includes a frame 1, a support assembly 2, a limit assembly 3 and a test assembly 4. The support assembly 2 is arranged at the bottom of the frame 1, and the limit assembly 3 is arranged in the middle of one side of the support assembly 2, and the test assembly 4 is arranged in the middle of the limit assembly 3. The support assembly 2 includes a base 201, a support plate 202, a telescopic assembly 203 and a bottom plate 204, and the support plates 202 are arranged on both sides of the outer end of the base 201, the telescopic assemblies 203 are arranged at both ends of the inner part of the base 201, and the bottom of the telescopic assembly 203 is arranged at the bottom of the bottom plate 204. The bottom plate 204 forms a telescopic structure with the base 201 through the telescopic component 203, and the base 201 and the support plate 202 are fixedly connected. The road deflection detection device is operated in a cart mode. The bottom rollers can increase the stability of the detection process when the device is stored while being easy to move. The built-in telescopic component 203 is used to retract the rollers into the base 201, so that the bottom of the base 201 contacts the ground, completing the stable placement of the deflection detection device, avoiding the displacement of the overall position caused by the rolling of the rollers. 01 bottom, and can be passed through the support plate 202 through an external grounding pin for auxiliary stable support to ensure safe use. The test assembly 4 includes a bearing block 401, a limiting groove 402, a drop hammer assembly 403 and a rod body 404, and the middle part of the bearing block 401 is provided with a limiting groove 402, the top of the bearing block 401 is provided with a rod body 404, and the end of the rod body 404 is provided with a drop hammer assembly 403, the limiting assembly 3 wraps the bearing block 401, and the size of the limiting groove 402 matches the end face size of the limiting assembly 3, and the setting of the limiting groove 402 is used to match the limiting groove 402. The frame 301 is cooperated with the frame 301. When the detection device is placed in the middle of the frame 1, in order to ensure stable support, the spring member 303 inside the limit frame 301 is pressed against the limit groove 402 in the middle of the load-bearing block 401, which is used to limit the load-bearing block 401 and avoid the subsequent rebound of the load-bearing block 401 during the hammer drop operation, which causes the placement position to shift and leads to reduced detection effect and accuracy. The frame 1 includes a support column 101, an inclined rod 102 and a storage box 103, and the inclined rod 102 is arranged at one end of the support column 101, and the storage box 103 is arranged in the middle of the support column 101.

[0020] like Figure 3As shown, a roadbed and pavement deflection detection device, the limit assembly 3 includes a limit frame 301, a rubber pad 302, a spring member 303, a fixed block 304 and a slide rail 305, and the limit frame 301 is provided with a rubber pad 302 at one end, the spring member 303 is provided inside the other end of the limit frame 301, and the end of the spring member 303 is provided with a fixed block 304, and the middle of both sides of the fixed block 304 is provided with a slide rail 305, and the limit frame 301 is connected to the fixed block 304 through the spring member 303. There is an elastic structure in between, and the limit frame 301 and the rubber pad 302 are integrated. A symmetrically distributed limit frame 301 is set in the middle of the bottom end of the frame 1, and its function is to limit the test component 4. The limit frame 301 can be pressed against the limit groove 402 in the middle of the supporting block 401 through the internal spring member 303 to firmly support the test component 4. The rubber pad 302 on the inner wall ensures that the supporting block 401 will not shake during the drop hammer impact test, thereby increasing the accuracy of the test.

[0021] Working principle: First, the road deflection detection device is operated in a cart manner. The storage box 103 is used to place the detection component 4 that is disassembled after the work is completed. Then the detection component 4 is assembled and placed in the middle of the frame 1. It is fixed and supported by the limit frames 301 on both sides of the bottom. Then it is moved by the bottom rollers. The rollers are retracted into the base 201 through the built-in telescopic component 203, and then the bottom of the base 201 contacts the ground, completing the stable placement of the deflection detection device. Then, the external ground pin passes through the support plate 202 for auxiliary stable support. As the rollers are retracted into the inside of the base 201, the bearing block 401 contacts the ground. As the bearing block 401 is limited by the limit frame 301, the rubber pad 302 on the inner wall prevents the bearing block 401 from shaking during the drop hammer impact detection, thereby increasing the accuracy of the detection.

[0022] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A roadbed and pavement deflection detection device, comprising a frame (1), a support assembly (2), a limit assembly (3) and a test assembly (4), characterized in that: A support assembly (2) is arranged at the bottom of the frame body (1), and a limit assembly (3) is arranged in the middle of one side of the support assembly (2), and a test assembly (4) is arranged in the middle of the limit assembly (3). The limit assembly (3) comprises a limit frame (301), a rubber pad (302), a spring member (303), a fixed block (304) and a slide rail (305), and the limit frame (301) is provided with a rubber pad (302) at one end, and a spring member (303) is arranged inside the other end of the limit frame (301), and a fixed block (304) is arranged at the end of the spring member (303), and slide rails (305) are arranged in the middle of both sides of the fixed block (304).

2. A roadbed and pavement deflection detection device according to claim 1, characterized in that: The limiting frame (301) is an elastic structure through the spring member (303) and the fixing block (304), and the limiting frame (301) and the rubber pad (302) are integrated.

3. A roadbed and pavement deflection detection device according to claim 1, characterized in that: The support assembly (2) comprises a base (201), a support plate (202), a telescopic assembly (203) and a bottom plate (204), wherein the support plates (202) are arranged at both sides of the outer end of the base (201), the telescopic assembly (203) is arranged at both ends of the inner part of the base (201), and the bottom plate (204) is arranged at the bottom of the telescopic assembly (203).

4. A roadbed and pavement deflection detection device according to claim 3, characterized in that: The bottom plate (204) forms a telescopic structure with the base (201) through the telescopic assembly (203), and the base (201) and the support plate (202) are fixedly connected.

5. The roadbed and pavement deflection detection device according to claim 1, characterized in that: The test assembly (4) comprises a bearing block (401), a limiting groove (402), a drop hammer assembly (403) and a rod body (404), wherein the bearing block (401) is provided with a limiting groove (402) in the middle, the rod body (404) is provided with a top end of the bearing block (401), and the drop hammer assembly (403) is provided at the end of the rod body (404).

6. A roadbed and pavement deflection detection device according to claim 5, characterized in that: The limiting component (3) wraps around the bearing block (401), and the size of the limiting groove (402) matches the end face size of the limiting component (3).

7. The roadbed and pavement deflection detection device according to claim 1, characterized in that: The frame (1) comprises a support column (101), an inclined rod (102) and a storage box (103), wherein the inclined rod (102) is arranged at one end of the support column (101), and the storage box (103) is arranged in the middle of the support column (101).

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