A leveling device for exposed anchor rod pullout test

Abstract

The utility model relates to the technical field of anchor rod test, especially in a kind of levelling device for exposed anchor rod pull-out test, including two support plates and levelling assembly, two the support plate is symmetrically distributed, the levelling assembly is arranged in the inside of support plate, the levelling assembly includes installation groove one, the installation groove one is set up in the top of support plate, the inside fixedly connected with support cylinder of installation groove one, the side surface of support cylinder is equipped with several installation grooves two and several installation grooves two are annular array distribution.In use the device, trapezoidal block can drive connecting block and arc clamping frame to the middle part of support cylinder and carry out rotating work, so that it can correct the angle of support cylinder, and then the counterforce device of pull-out tester can be in the same direction with anchor rod, ensure the consistency and stability of anchor rod stress in the process of test, improve the reliability of test result.

Description

Technical Field

[0001] This utility model relates to the field of anchor bolt testing technology, and in particular to a leveling device for pull-out testing of exposed anchor bolts. Background Technology

[0002] Anchor pull-out test is a test method used to detect whether the anchoring force of an anchor meets the design requirements. An axial tensile force is applied to the anchor using the reaction device of the pull-out apparatus, and the stress and displacement changes during the pull-out process are measured to evaluate the anchoring quality and determine whether the anchor can function safely and reliably in the project.

[0003] However, in actual anchor pull-out tests, the surrounding rock or slope foundation surface is often uneven due to factors such as shotcrete application. Because of this unevenness, the reaction device is prone to wobbling during the test, causing the direction of the tensile force applied to the anchor to shift and no longer coincide with the anchor axis. This not only affects the accuracy of the anchor's tensile bearing capacity test but also leads to uneven forces on the anchor, potentially causing premature failure and severely impacting the reliability of the test results.

[0004] Therefore, a leveling device is needed for pull-out tests of exposed anchor bolts to provide a flat force-bearing surface for the reaction device of the pull-out tester, ensuring the accuracy and reliability of the test results. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the prior art, this utility model provides a leveling device for pull-out tests of exposed anchor bolts, which effectively solves the problem in the traditional technology that the reaction device of the pull-out instrument is prone to shaking due to uneven force surface, which causes the direction of the tension applied to the anchor bolt to change.

[0006] The technical solution includes two support plates and a leveling assembly. The two support plates are symmetrically distributed, and the leveling assembly is located inside the support plates. The leveling assembly includes a first mounting groove, which is located at the top of the support plate. A support cylinder is fixedly connected inside the first mounting groove. Several second mounting grooves are formed on the side surface of the support cylinder and are arranged in a circular array. Rotating rods are rotatably connected inside each of the second mounting grooves. A trapezoidal block is fixedly connected to the side surface of the rotating rod. A connecting block is fixedly connected to the other side of the trapezoidal block, and an arc-shaped clamping frame is fixedly connected to the other side of the connecting block. When using the device, the trapezoidal block can drive the connecting block and the arc-shaped clamping frame to rotate towards the center of the support cylinder, thereby correcting the angle of the support cylinder. This ensures that the support cylinder is aligned with the anchor rod, and consequently, the reaction device of the pull-out tester is aligned with the anchor rod, guaranteeing the consistency and stability of the anchor rod's force during the test and improving the reliability of the test results.

[0007] More preferably, a connecting component is provided on the outer side of the support cylinder, the connecting component including a threaded groove, the threaded groove being formed on the side surface of the support cylinder, and a threaded ring being threadedly connected to the outer side of the threaded groove.

[0008] More preferably, the outer side of the threaded ring is fixedly connected to two handles, which are symmetrically distributed, and the side surface of the support cylinder is fixedly connected to two limiting rings, which are symmetrically distributed. This facilitates the operator's angle adjustment operation and improves the convenience and flexibility of the device.

[0009] More preferably, four support rods are fixedly connected to one side of the two support plates that are close to each other, a support seat is fixedly connected to the side surface of one of the limiting rings, and an adjustment component is provided at the bottom of one of the support plates.

[0010] More preferably, the adjustment component includes four mounting slots three, which are located at the bottom of the support plate and are distributed at four corners. Each of the four mounting slots three has a support ring fixedly connected inside. The support ring has a threaded groove two inside, and a threaded rod is threadedly connected inside the threaded groove two.

[0011] More preferably, a handle is fixedly connected to the top of the threaded rod, and a support assembly is provided at the bottom of the threaded rod.

[0012] More preferably, the support assembly includes a spherical block, which is fixedly connected to the bottom of the threaded rod. A spherical support frame is rotatably connected to the side surface of the spherical block, and a mounting seat is fixedly connected to the bottom of the spherical support frame. The spherical support frame and the mounting seat can self-adjust their angles, allowing the mounting seat to adapt to different environments and force surfaces. This provides stable support for the reaction device of the pull-out apparatus, perfectly solving the problem of the reaction device shaking due to uneven force surfaces during the test.

[0013] In this invention, when using the device, the trapezoidal block can drive the connecting block and the arc-shaped clamping frame to rotate towards the center of the support cylinder, so that the angle of the support cylinder can be corrected, and the support cylinder can be in the same direction as the anchor rod. This also ensures that the reaction device of the pull-out instrument is in the same direction as the anchor rod, guaranteeing the consistency and stability of the force on the anchor rod during the test and improving the reliability of the test results.

[0014] In this invention, before conducting the experiment, the threaded rod can push the spherical block, spherical support frame, and mounting base downwards. Simultaneously, through the sliding connection between the spherical block and the spherical support frame, the spherical support frame and mounting base can self-adjust their angles, allowing the mounting base to adapt to different environments and force-bearing surfaces. This provides stable support for the reaction device of the pull-out apparatus, perfectly solving the problem of the reaction device shaking due to uneven force-bearing surfaces during the experiment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic cross-sectional view of the present invention.

[0017] Figure 3 This utility model Figure 2 Schematic diagram of the structure at point a;

[0018] Figure 4 This is a schematic cross-sectional view of the adjustment component of this utility model;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0020] Figure 6 This utility model Figure 5 Schematic diagram of the structure at point b.

[0021] In the diagram: 1. Support plate; 2. Leveling assembly; 201. Mounting slot one; 202. Support cylinder; 203. Mounting slot two; 204. Rotating rod; 205. Trapezoidal block; 206. Connecting block; 207. Arc-shaped clamping frame; 3. Connecting assembly; 301. Threaded groove one; 302. Threaded ring; 303. Handle one; 304. Limiting ring; 4. Support rod; 5. Support seat; 6. Adjusting assembly; 601. Mounting slot three; 602. Support ring; 603. Threaded groove two; 604. Threaded rod; 605. Handle two; 7. Support assembly; 701. Spherical block; 702. Spherical support frame; 703. Mounting seat; 8. Anchor rod. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0023] Depend on Figures 1 to 6 The present invention includes two support plates 1 and a leveling component 2. The two support plates 1 are symmetrically distributed. The leveling component 2 is disposed inside the support plates 1. The leveling component 2 includes a mounting groove 201, which is opened on the top of the support plate 1. A support cylinder 202 is fixedly connected inside the mounting groove 201. Several mounting grooves 203 are opened on the side surface of the support cylinder 202 and are arranged in a circular array. Rotating rods 204 are rotatably connected inside the mounting grooves 203 respectively. A trapezoidal block 205 is fixedly connected to the side surface of the rotating rod 204. A connecting block 206 is fixedly connected to the other side of the trapezoidal block 205. An arc-shaped clamping frame 207 is fixedly connected to the other side of the connecting block 206.

[0024] Example 1

[0025] In this embodiment, as Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, a connecting assembly 3 is provided on the outer side of the support cylinder 202. The connecting assembly 3 includes a threaded groove 301, which is formed on the side surface of the support cylinder 202. A threaded ring 302 is threadedly connected to the outer side of the threaded groove 301. Two handles 303 are fixedly connected to the outer side of the threaded ring 302, and the two handles 303 are symmetrically distributed. Two limiting rings 304 are fixedly connected to the side surface of the support cylinder 202, and the two limiting rings 304 are symmetrically distributed. Four [unclear characters] are fixedly connected to the side of the two support plates 1 that are close to each other. The support rod 4 has a support base 5 fixedly connected to the side surface of one of the limiting rings 304, and an adjustment component 6 is provided at the bottom of one of the support plates 1. Through the threaded connection between the threaded groove 301 and the threaded ring 302, the operator can rotate the upper and lower threaded rings 302 towards the center by turning the handle 303. At the same time, through the rotational connection between the rotating rod 204 and the trapezoidal block 205, the moving threaded ring 302 can push the trapezoidal block 205 to rotate towards the center of the support cylinder 202.

[0026] Example 2

[0027] In this embodiment, as Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, the adjustment component 6 includes four mounting slots 601. These four mounting slots 601 are located at the bottom of the support plate 1 and are distributed at four corners. Support rings 602 are fixedly connected to the interior of each of the four mounting slots 601. Threaded grooves 603 are formed inside each support ring 602. A threaded rod 604 is threaded into the interior of each threaded groove 603. A handle 605 is fixedly connected to the top of the threaded rod 604. A support component 7 is located at the bottom of the threaded rod 604. The support component 7 includes a spherical block 701, which is fixedly connected to the bottom of the threaded rod 604. A spherical support frame 702 is rotatably connected to the side surface of the spherical block 701. A mounting base 7 is fixedly connected to the bottom of the spherical support frame 702. 03. An anchor rod 8 is installed inside the support plate 1. The anchor rod 8 is movably connected inside the support cylinder 202. Through the threaded connection between the threaded groove 603 and the threaded rod 604, the operator can turn the threaded rod 604 downward by the handle 605. The threaded rod 604 can push the spherical block 701, the spherical support frame 702, and the mounting seat 703 downward, so that the mounting seat 703 can contact the force-bearing surface. At the same time, through the sliding connection between the spherical block 701 and the spherical support frame 702, the spherical support frame 702 and the mounting seat 703 can self-adjust their angles, so that the mounting seat 703 can be stably connected to the force-bearing surface, thereby providing stable support for the device.

[0028] The working principle of the exposed anchor bolt pull-out test leveling device is explained in detail below:

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, when using this device, the operator first places the support cylinder 202 onto the outside of the anchor rod 8. Then, through the threaded connection between the threaded groove 301 and the threaded ring 302, the operator can rotate the upper and lower threaded rings 302 towards the center by turning the handle 303. Simultaneously, through the rotational connection between the rotating rod 204 and the trapezoidal block 205, the moving threaded ring 302 can push the trapezoidal block 205 to rotate towards the center of the support cylinder 202, so that the trapezoidal block 205 can drive the connecting block 2. 06 and the arc-shaped clamping frame 207 also rotate towards the center of the support cylinder 202, so that the arc-shaped clamping frame 207 can fix and clamp the anchor rod 8. By clamping the upper and lower sides of the anchor rod 8, the angle of the support cylinder 202 can be corrected, so that the support cylinder 202 and the anchor rod 8 are in the same direction, and the support plate 1 is in the same direction as the anchor rod 8. Then, through the threaded connection between the threaded groove 603 and the threaded rod 604, the operator can turn the threaded rod 604 through the handle 605. Moving downwards allows the threaded rod 604 to push the spherical block 701, spherical support frame 702, and mounting base 703 downwards, enabling the mounting base 703 to contact the force-bearing surface. Simultaneously, the sliding connection between the spherical block 701 and the spherical support frame 702 allows the spherical support frame 702 and mounting base 703 to self-adjust their angles, ensuring a stable connection between the mounting base 703 and the force-bearing surface. This provides stable support for the device. Then, the operator can attach the reaction device of the pull-out apparatus to the anchor. The outer side of rod 8 allows support seat 5 to support the reaction device, ensuring the reaction device is in the same direction as anchor rod 8. Then, the operator can twist threaded ring 302 in the opposite direction, releasing the threaded ring 302 from its limiting function on arc-shaped clamp 207, thus releasing the arc-shaped clamp 207 from its clamping function on anchor rod 8. This prevents the arc-shaped clamp 207 from affecting the testing of anchor rod 8. Finally, the operator can use a pull-out testing instrument to conduct a pull-out test on anchor rod 8, thereby completing the testing work.

Claims

1. A leveling device for pull-out tests of exposed anchor bolts, comprising two support plates (1) and a leveling assembly (2), characterized in that: The two support plates (1) are symmetrically distributed. The leveling component (2) is set inside the support plate (1). The leveling component (2) includes a mounting groove (201). The mounting groove (201) is opened on the top of the support plate (1). A support cylinder (202) is fixedly connected inside the mounting groove (201). A plurality of mounting grooves (203) are opened on the side surface of the support cylinder (202) and the plurality of mounting grooves (203) are arranged in a ring array. A rotating rod (204) is rotatably connected inside the plurality of mounting grooves (203). A trapezoidal block (205) is fixedly connected to the side surface of the rotating rod (204). A connecting block (206) is fixedly connected to the other side of the trapezoidal block (205). An arc-shaped clamping frame (207) is fixedly connected to the other side of the connecting block (206).

2. The leveling device for pull-out tests of exposed anchor bolts according to claim 1, characterized in that: A connecting component (3) is provided on the outer side of the support cylinder (202). The connecting component (3) includes a threaded groove (301), which is opened on the side surface of the support cylinder (202). A threaded ring (302) is threadedly connected to the outer side of the threaded groove (301).

3. A leveling device for pull-out tests of exposed anchor bolts according to claim 2, characterized in that: The outer side of the threaded ring (302) is fixedly connected to two handles (303) and the two handles (303) are symmetrically distributed. The side surface of the support cylinder (202) is fixedly connected to two limiting rings (304) and the two limiting rings (304) are symmetrically distributed.

4. A leveling device for pull-out tests of exposed anchor bolts according to claim 3, characterized in that: Four support rods (4) are fixedly connected to one side of the two support plates (1) that are close to each other. A support seat (5) is fixedly connected to the side surface of one of the limiting rings (304). An adjustment component (6) is provided at the bottom of one of the support plates (1).

5. A leveling device for pull-out tests of exposed anchor bolts according to claim 4, characterized in that: The adjustment component (6) includes four mounting slots (601), which are located at the bottom of the support plate (1) and are distributed at the four corners. Support rings (602) are fixedly connected inside the four mounting slots (601). Threaded grooves (603) are provided inside the support rings (602), and threaded rods (604) are threaded inside the threaded grooves (603).

6. A leveling device for pull-out tests of exposed anchor bolts according to claim 5, characterized in that: The top of the threaded rod (604) is fixedly connected to a handle (605), and the bottom of the threaded rod (604) is provided with a support assembly (7).

7. A leveling device for pull-out tests of exposed anchor bolts according to claim 6, characterized in that: The support assembly (7) includes a spherical block (701), which is fixedly connected to the bottom of the threaded rod (604). A spherical support frame (702) is rotatably connected to the side surface of the spherical block (701), and a mounting base (703) is fixedly connected to the bottom of the spherical support frame (702).

8. A leveling device for pull-out tests of exposed anchor bolts according to claim 1, characterized in that: The inside of the support plate (1) is an anchor rod (8), which is movably connected to the inside of the support cylinder (202).

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