Anchoring force detection device

Abstract

The utility model belongs to the anchoring force detection technical field discloses a kind of anchoring force detection equipment, including hand pressure pump, hollow jack, jacking sleeve and locking part, hand pressure pump is connected with the oil pipe connecting port of hollow jack by pipeline intercommunication, jacking sleeve is fixed in the piston rod top of hollow jack, locking part includes annular part and several locking heads, several locking heads are annular equidistance array distribution on annular part, locking head includes rotating block, rotating block is rotatably installed on annular part, one end of rotating block is shaped with the locking arm for compacting anchor rod, the other end of rotating block is shaped with extrusion arm, the inner wall of jacking sleeve is set as inverted round platform, the upper end of extrusion arm and the inner wall of jacking sleeve sliding contact, the utility model is equipped with locking part cooperation jacking sleeve, make locking arm with jacking sleeve rise automatically hug anchor rod, avoid eccentric problem from mechanical structure, save additional cylinder driving equipment, significantly reduce overall weight and volume.

Description

Technical Field

[0001] This utility model relates to the field of anchor force testing technology, and in particular to an anchor force testing device. Background Technology

[0002] Chinese utility model patent CN222299128U discloses an intelligent adjustable bracket for anchor pull-out detection. Its structure includes an anchor and an anchor plate. A support foot is fixed to the lower edge of the anchor plate. The plate has a through hole containing a ring-shaped cleaning brush. A detection jack is mounted on the upper part of the anchor plate. A concentric sleeve for the anchor rod is fitted to the top of the jack. Telescopic cylinders arranged in a ring array are fixed to the surface of the concentric sleeve. The output end of the cylinders penetrates the wall of the concentric sleeve and is connected to a pressing block. The output end slides into the concentric sleeve. The concentric sleeve and the output end of the jack are adapted to each other, and the pressing block fits against the anchor.

[0003] This technology uses a telescopic cylinder to drive a clamping block to hold the anchor, achieving automatic calibration of the stress center axis of the testing bracket. This effectively avoids the problem of eccentric tension on the anchor during testing, thereby improving the accuracy of pull-out testing. However, in practical applications, it requires an additional cylinder drive device, which significantly increases the weight and size of the overall device, making it difficult to handle on-site.

[0004] To address this, an anchor force testing device is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an anchor force detection device, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] An anchor force testing device includes a hand pump, a hollow jack, a lifting sleeve, and a locking component. The hand pump is connected to the oil pipe connection port of the hollow jack via a pipe, and the lifting sleeve is fixed to the top of the piston rod of the hollow jack.

[0008] The locking component for centering and clamping the anchor bolt includes an annular component and several locking heads. The locking heads are arranged in an equidistant annular array on the annular component. Each locking head includes a rotating block, which is rotatably mounted on the annular component. One end of the rotating block is formed with a locking arm for pressing the anchor bolt, and the other end of the rotating block is formed with a pressing arm. The inner wall of the lifting sleeve is shaped like an inverted frustum, and the upper end of the pressing arm slides in contact with the inner wall of the lifting sleeve.

[0009] In an anchor force testing device according to the present invention, the locking head is arranged in a V-shape.

[0010] In an anchor force testing device according to the present invention, the upper end of the locking arm is provided with an arc-shaped surface, and anti-slip texture is formed on the arc-shaped surface.

[0011] In an anchor force testing device according to the present invention, the upper end of the extrusion arm is formed with an arc-shaped block, and the arc-shaped block is in contact with the inner wall of the lifting sleeve.

[0012] In an anchor force testing device according to the present invention, the locking head is provided in no fewer than three parts.

[0013] An anchor force testing device according to the present invention further includes a limiting cover, the bottom of which is fixedly connected to an annular pressure block. The limiting cover is threaded onto the lifting sleeve, and the bottom of the annular pressure block can press against the top of the annular part to apply initial pressure to the locking part, so that the locking part can hold the anchor rod in the center.

[0014] In an anchor force testing device according to the present invention, the limiting cover is externally fixedly connected with a handle.

[0015] In an anchor force testing device according to the present invention, a pressure gauge for displaying the current pressure of the hollow jack is installed on the hand pump.

[0016] This utility model has at least the following beneficial effects:

[0017] By using a locking mechanism in conjunction with a lifting sleeve, the locking arm automatically grips the anchor rod as the lifting sleeve rises, thus avoiding eccentricity issues from a mechanical structure perspective. This eliminates the need for additional cylinder drive equipment and significantly reduces the overall weight and size. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a partial cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the locking head of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the ring-shaped component of this utility model.

[0023] Explanation of icon numbers:

[0024] 1. Hand pump; 2. Pressure gauge; 3. Hollow jack; 4. Lifting sleeve; 5. Limit cover; 501. Annular pressure block; 502. Handle; 6. Anchor rod; 7. Locking head; 701. Rotating block; 702. Locking arm; 7021. Anti-slip texture; 703. Extrusion arm; 8. Annular component. Detailed Implementation

[0025] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0026] Please refer to Figures 1 to 4 As shown, an embodiment of this utility model provides an anchor force testing device, including a hand pump 1, a hollow jack 3, a lifting sleeve 4 and a locking component. The hand pump 1 is connected to the oil pipe connection port of the hollow jack 3 through a pipe, and the lifting sleeve 4 is fixed to the top of the piston rod of the hollow jack 3.

[0027] The locking component for centering and clamping the anchor bolt 6 includes an annular component 8 and several locking heads 7. The locking heads 7 are arranged in an annular equidistant array on the annular component 8. Each locking head 7 includes a rotating block 701, which is rotatably mounted on the annular component 8. One end of the rotating block 701 is formed with a locking arm 702 for pressing the anchor bolt 6, and the other end of the rotating block 701 is formed with a pressing arm 703. The inner wall of the lifting sleeve 4 is shaped like an inverted frustum, and the upper end of the pressing arm 703 slides in contact with the inner wall of the lifting sleeve 4.

[0028] In use, the operator operates the hand pump 1, which pumps hydraulic oil into the hollow jack 3 through a pipeline, causing the piston rod of the hollow jack 3 to extend. As the piston rod extends, the lifting sleeve 4, fixed to the top of the piston rod, moves upward. The inner wall of the lifting sleeve 4 is shaped like an inverted frustum. When the lifting sleeve 4 moves upward, its inverted frustum-shaped inner wall exerts an upward compressive force on the compression arm 703. Since the rotating block 701 is rotatably mounted on the annular part 8, after being subjected to the compressive force, the rotating block 701 will rotate around its rotatable connection with the annular part 8, causing one end of the locking arm 702 to approach the anchor rod 6 and clamp it in the center, thereby achieving the positioning and clamping of the anchor rod 6 for subsequent anchor force testing.

[0029] To ensure the centering effect, in this embodiment, the number of locking heads 7 shall not be less than three.

[0030] In this embodiment, the locking head 7 is V-shaped. The V-shaped locking head 7 can better adapt to anchor rods 6 of different diameters. When the locking arm 702 moves closer to the anchor rod 6 under the action of the compression arm 703, the V-shaped structure can adapt to the diameter change of the anchor rod 6 within a certain range, making the contact between the locking arm 702 and the anchor rod 6 tighter and more uniform, improving the stability and reliability of the clamping, and thus transmitting the detection force more accurately.

[0031] In this embodiment, the upper end of the locking arm 702 is provided with an arc-shaped surface, and anti-slip texture 7021 is provided on the arc-shaped surface.

[0032] The curved surface design can better accommodate anchor rods 6 of different diameters, while the presence of anti-slip texture 7021 increases the friction between locking arm 702 and anchor rod 6, preventing relative sliding between anchor rod 6 and locking arm 702 during the testing process, ensuring accurate force transmission during the testing process, and improving the accuracy of the testing results.

[0033] In this embodiment, the upper end of the extrusion arm 703 is formed with an arc-shaped block, which is in contact with the inner wall of the lifting sleeve 4.

[0034] The arc-shaped block contacts the inner wall of the lifting sleeve 4. Compared to flat contact, the arc-shaped block reduces the frictional resistance between itself and the inner wall of the lifting sleeve 4, making the sliding of the compression arm 703 smoother. At the same time, the arc-shaped block can better and more evenly transmit the compressive force of the inner wall of the lifting sleeve 4 to the compression arm 703, thereby driving the rotating block 701 to rotate more stably and ensuring the smoothness of the locking arm 702's clamping action on the anchor rod 6.

[0035] In this embodiment, a limiting cover 5 is also included. An annular pressure block 501 is fixedly connected to the bottom of the limiting cover 5. The limiting cover 5 is threaded onto the lifting sleeve 4. The bottom of the annular pressure block 501 can press against the top of the annular part 8.

[0036] During equipment installation, rotating the limiting cover 5 allows it to move up and down along the threads of the lifting sleeve 4, as the limiting cover 5 is threaded onto the lifting sleeve 4. When the limiting cover 5 moves downward, the annular pressure block 501 fixedly connected to its bottom moves downward as well, applying pressure to the top of the annular component 8. This pressure is transmitted to the locking heads 7 on the annular component 8, causing the locking heads 7 to apply a certain initial clamping force to the anchor rod 6 before the lifting sleeve 4 rises, achieving initial centering and clamping of the anchor rod 6, thus improving the convenience and accuracy of equipment installation and testing.

[0037] In this embodiment, a handle 502 is fixedly connected to the outside of the limiting cover 5. The handle 502 is designed to facilitate manual rotation of the limiting cover 5 by the operator. The operator can rotate the limiting cover 5 more easily and effortlessly by holding the handle 502.

[0038] In this embodiment, a pressure gauge 2 is installed on the hand pump 1 to display the current pressure of the hollow jack 3.

[0039] During the operation of the hand pump 1 to pump hydraulic oil into the hollow jack 3, the pressure of the hydraulic oil will change. Pressure gauge 2 is connected to the hand pump 1 and can measure and display the hydraulic oil pressure output by the hand pump 1 in real time. This pressure corresponds to the internal pressure of the hollow jack 3. By observing the value on pressure gauge 2, the operator can intuitively understand the current pressure state of the hollow jack 3, thereby controlling the pumping operation of the hand pump 1 and accurately applying the required detection force to ensure the accuracy of the anchor force detection results.

[0040] Working principle:

[0041] The hollow jack 3 is placed on the anchor rod 6, and then the ring part 8 of the locking part is placed on the anchor rod 6, so that several locking heads 7 surround the anchor rod 6.

[0042] Rotate the handle 502 on the outside of the limiting cover 5 to thread the limiting cover 5 onto the lifting sleeve 4. Slowly rotate the handle 502 to move the limiting cover 5 downward, which in turn moves the annular pressure block 501 downward until the bottom of the annular pressure block 501 presses against the top of the annular part 8, applying appropriate initial pressure to the locking part so that the locking head 7 initially holds the anchor rod 6 in the center.

[0043] The operator stands in a suitable position and operates the hand pump 1 to pump hydraulic oil into the hollow jack 3 through the pipeline.

[0044] Observe the piston rod of the hollow jack 3 gradually extending, which at the same time drives the lifting sleeve 4 fixed to the top of the piston rod to move upward.

[0045] As the lifting sleeve 4 moves upward, its inverted frustum-shaped inner wall exerts an upward compressive force on the compression arm 703. Since the rotating block 701 is rotatably mounted on the annular part 8, after being subjected to the compressive force, the rotating block 701 rotates around the rotatable connection with the annular part 8, causing one end of the locking arm 702 to move closer to the anchor rod 6 and gradually press the anchor rod 6, thus achieving a centered and tight grip on the anchor rod 6.

[0046] During the pumping of hydraulic oil, closely observe the pressure gauge 2 on the hand pump 1 and read the current pressure value of the hollow jack 3 in real time.

[0047] According to the loading rate and loading level specified in the anchor force testing manual, the pumping volume of hydraulic oil is controlled by operating the hand pump 1 to gradually apply the testing force. After each loading, the pressure is stabilized for a certain period of time, and the pressure value displayed by the pressure gauge 2 and the corresponding status of the anchor bolt 6 are recorded.

[0048] Stop loading when the maximum pressure required for testing is reached or when an abnormality occurs in anchor bolt 6.

[0049] Final touches:

[0050] Slowly operate the pressure relief valve of the hand pump 1 to release the hydraulic oil in the hollow jack 3, causing the piston rod to slowly retract, and the lifting sleeve 4 to move downwards. The pressure on the extrusion arm 703 gradually decreases, and the locking arm 702 separates from the anchor rod 6.

[0051] Rotate handle 502 to unscrew the limit cover 5 from the lifting sleeve 4 and remove the limit cover 5.

[0052] Remove the hollow jack 3 and the locking piece from the anchor rod 6 in sequence.

[0053] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An anchor force detection apparatus characterized by comprising: It includes a hand pump (1), a hollow jack (3), a lifting sleeve (4) and a locking component. The hand pump (1) is connected to the oil pipe connection port of the hollow jack (3) through a pipe. The lifting sleeve (4) is fixed to the top of the piston rod of the hollow jack (3). The locking component for centering and clamping the anchor rod (6) includes an annular component (8) and several locking heads (7). The locking heads (7) are arranged in an annular equidistant array on the annular component (8). Each locking head (7) includes a rotating block (701). The rotating block (701) is rotatably mounted on the annular component (8). One end of the rotating block (701) is formed with a locking arm (702) for pressing the anchor rod (6), and the other end of the rotating block (701) is formed with a pressing arm (703). The inner wall of the lifting sleeve (4) is set in an inverted frustum shape, and the upper end of the pressing arm (703) slides in contact with the inner wall of the lifting sleeve (4).

2. An anchoring force detection device according to claim 1, characterized in that: The locking head (7) is V-shaped.

3. The anchor force testing device according to claim 2, characterized in that: The upper end of the locking arm (702) is provided with an arc-shaped surface, and anti-slip texture (7021) is provided on the arc-shaped surface.

4. The anchor force testing device according to claim 2, characterized in that: The upper end of the extrusion arm (703) is formed with an arc-shaped block, which is in contact with the inner wall of the lifting sleeve (4).

5. The anchor force testing device according to claim 4, characterized in that: The locking head (7) shall be provided in no fewer than three.

6. The anchor force testing device according to claim 1, characterized in that: It also includes a limiting cover (5), the bottom of which is fixedly connected to an annular pressure block (501). The limiting cover (5) is threaded onto the lifting sleeve (4). The bottom of the annular pressure block (501) can press against the top of the annular part (8) to apply initial pressure to the locking part, so that the locking part can hold the anchor rod (6) in the center.

7. The anchor force testing device according to claim 6, characterized in that: The limiting cover (5) is externally fixedly connected to a handle (502).

8. An anchor force testing device according to any one of claims 1-7, characterized in that: The hand pump (1) is equipped with a pressure gauge (2) for displaying the current pressure of the hollow jack (3).

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