Anchor rod drawing detection tool applied to anchor rod lifting vehicle
By designing an anchor pull detection tool for anchor lifting, using friction to provide tension and improving test accuracy through high mechanization, the existing equipment is solved by solving the problems of large size, excessive weight and low test accuracy, and the ability to conduct high accuracy tests in narrow or difficult to reach locations is achieved.
Patent Information
- Application Number
- CN202421179958.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-05-28
AI Technical Summary
The existing anchor pulling test equipment is huge, overweight, time-consuming and labor-intensive, and has low testing accuracy, especially when testing in narrow or difficult-to-reach locations.
Design an anchor pull detection tool for anchor lifting vehicles, which provides tension to the anchor through friction, including drill rod power unit, support table, slide rail, pull rod hydraulic jack, hydraulic lifting device, reaction block, laser ranging probe and fixed snaps to ensure that the anchor is only subjected to vertical tension and improve the test accuracy.
By replacing traditional manual testing with a high degree of mechanization, the anchor rod is only subjected to vertical tension, improves the accuracy of the test data, and can be tested in difficult-to-reach positions.
Smart Images

Figure CN222774417U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of a test anchor rod pull-out detection device, in particular to an anchor rod pull-out detection tooling applied to an anchor rod lifting vehicle. Background Art
[0002] Anchor pull-out testing plays a vital role in geotechnical engineering, tunnel construction, slope stabilization and foundation reinforcement. The core purpose of this test method is to evaluate the performance of the anchor system, especially the interaction and bond strength between the anchor and its surrounding medium (such as rock or soil) under actual working conditions. Through this test, engineers can intuitively verify the reliability and safety of the anchor design to ensure that it meets the various requirements of the engineering design. In addition, the anchor pull-out test can also help identify potential design or installation problems and provide an important basis for engineering adjustments. It not only helps to improve construction quality, but is also a key step to ensure the long-term stability and safety of the project. In short, the anchor pull-out test is a bridge connecting theoretical design and practical application, which is crucial to ensuring the structural safety and functional realization of related engineering fields.
[0003] In the anchor pull test, since it is usually necessary to apply several tons of pulling force to the anchor, the test tooling equipment is bulky and heavy. Most of these devices need to be manually installed on the anchor to be tested, which is time-consuming and laborious. Therefore, the use of such equipment is severely limited by site conditions, and it may be difficult to test in narrow or difficult-to-reach locations. In addition, when testing the anchor pull, the prior art usually hangs the pulling tooling directly on the exposed anchor ring, and the tooling is generally heavy. The anchor is easily subjected to a large tensile and shearing mixed force during the test stage, resulting in low test accuracy.
[0004] In view of this, it is necessary to design an anchor pulling detection tooling for anchor lifting vehicle to solve the above problems. Utility Model Content
[0005] In view of the defects of the above-mentioned prior art, the purpose of the utility model is to provide an anchor pulling detection tooling used for anchor lifting vehicle, which provides pulling force for anchor pulling test through friction force and makes the test data more accurate through high mechanization.
[0006] To achieve the above-mentioned purpose, the utility model provides an anchor pulling detection tooling applied to an anchor lifting vehicle, comprising: a drill rod power unit, a support platform for supporting the drill rod power unit, and a pulling device located on the surface of the support platform and away from one end of the drill rod power unit; the pulling device comprises a slide rail arranged on the surface of the support platform, a pull-rod type hydraulic jack arranged on the slide rail, a hydraulic lifting device connected to the pull-rod type hydraulic jack, a reaction block arranged at the end of the support platform, a laser ranging probe arranged on the reaction block, a fixing buckle connected to the hydraulic lifting device, a control box for controlling the sliding of the slide rail, and a tension sensor for detecting data of the tension applied by the pull-rod type hydraulic jack.
[0007] Furthermore, the slide rail includes a slide rail 1 and a slide rail 2 symmetrically arranged on both sides of the support platform; the extension direction of the slide rail 1 and the slide rail 2 is parallel to the extension direction of the support platform; the sliding direction of the slide rail 1 and the slide rail 2 is parallel to the extension direction of the support platform.
[0008] Furthermore, the pull rod type hydraulic jack includes a jack arranged on the slide rail, and a pull rod connected to one side of the jack and away from the drill rod power unit.
[0009] Furthermore, the number of the pull-rod type hydraulic jacks is two; the two pull-rod type hydraulic jacks are symmetrically arranged on the slide rail one and the slide rail two.
[0010] Furthermore, the hydraulic lifting device includes a base connected to the other end of the pull rod and located on the slide rail, and a telescopic rod placed on the top end of the base; the top end of the telescopic rod is connected to the fixing buckle.
[0011] Furthermore, the number of the hydraulic lifting devices is two; the two hydraulic lifting devices are symmetrically arranged on the slide rail one and the slide rail two.
[0012] Furthermore, the reaction block is arranged across the slide rail 1 and the slide rail 2; the reaction block is a reaction block with an "L"-shaped cross section.
[0013] Furthermore, the fixing buckle includes caliper one, caliper two parallel to caliper one, a connecting rod for connecting the bottom end of caliper one and the bottom end of caliper two located on the same side of caliper one, a first fastening plate for supporting caliper one and disposed on slide rail one, and a second fastening plate for supporting caliper two and disposed on slide rail two.
[0014] Furthermore, the connecting rod includes a connecting rod 1 and a connecting rod 2 which is parallel to and opposite to the connecting rod 1; the caliper 1 is movably connected to the first fastening plate; the caliper 2 is movably connected to the second fastening plate; the jaws of the caliper 1 and the jaws of the caliper 2 are both opened in a direction away from the support platform.
[0015] Furthermore, the laser ranging probe is located at the bottom end of the reaction block and close to the surface of the fixing buckle.
[0016] The beneficial effects of the utility model are:
[0017] 1. The anchor rod pulling detection tooling used for anchor rod lifting vehicle provided by the utility model comprises a drill rod power unit, a support platform for supporting the drill rod power unit, and a pulling device located on the support platform; the pulling device comprises a slide rail arranged on the support platform, a pull rod type hydraulic jack arranged on the slide rail, a hydraulic lifting device connected to the pull rod type hydraulic jack, a reaction block arranged at the end of the support platform, a laser ranging probe arranged on the reaction block, a fixing buckle connected to the hydraulic lifting device, a control box for controlling the sliding of the slide rail, and a tension sensor for detecting the data of the tension applied by the pull rod type hydraulic jack. In this way, by installing the anchor rod pulling detection tooling on the boom of the rock drilling trolley, it can not only replace the traditional manual test with a high degree of mechanization, but also ensure that the anchor rod is only subjected to the tension perpendicular to the rock wall, so that the test data is more accurate. In addition, for anchor rods that are difficult to reach at a high position or located on the top plate, they can also be tested by cooperating with the boom of the trolley.
[0018] 2. The anchor rod pulling detection tooling used for anchor rod lifting car provided by the utility model has a pulling device arranged on the support table, wherein the pulling device has a limit hole connecting the inner cavity of the booster cylinder with the outside world. It can not only be used to monitor the position of the booster piston rod in the booster cylinder to prevent the low-pressure end of the booster piston rod from failing to work normally due to running to the end of the low-pressure cavity; at the same time, when the booster piston rod compresses the internal gas and generates resistance due to movement, it can also be used as an exhaust hole to balance the pressure difference. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 The utility model is a schematic structural diagram of an anchor rod pulling detection tooling used for an anchor rod lifting vehicle.
[0020] Figure 2 The utility model is a schematic diagram of a pulling device in an anchor pulling detection tooling used for an anchor lifting vehicle.
[0021] Figure 3 It is a schematic diagram of the state of the anchor rod pulling detection tooling used for the anchor rod lifting vehicle in the embodiment when it is working.
[0022] Figure 4It is a schematic diagram of the pulled state of the anchor rod pulling detection tooling used for the anchor rod lifting vehicle in the embodiment.
[0023] Reference numerals
[0024] 1-drill pipe power unit; 2-support platform; 31-slide rail; 32-pull rod type hydraulic jack; 321-jack; 322-pull rod; 33-hydraulic lifting device; 331-base; 332-telescopic rod; 34-reaction block; 35-laser ranging probe; 36-fixing buckle; 361-caliper one; 362-caliper two; 363-connecting rod; 364-first fastening plate; 4-rock wall; 51-pipe seam anchor; 52-anchor ring; 6-anchor tray; 7-anchor. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the drawings, while other details that are not closely related to the present invention are omitted. In addition, it should also be noted that the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0027] like Figures 1-2As shown, the utility model provides an anchor pulling detection tooling for anchor lifting vehicle, comprising: a drill rod power unit 1, a support platform 2 for supporting the drill rod power unit 1, and a pulling device located on the surface of the support platform 2 and away from one end of the drill rod power unit 1; the pulling device comprises a slide rail 31 arranged on the surface of the support platform 2, a pull rod 322-type hydraulic jack 32 arranged on the slide rail 31, a hydraulic lifting device 33 connected to the pull rod type hydraulic jack 32, a reaction block 34 arranged at the end of the support platform 2, a laser ranging probe 35 arranged on the reaction block 34, a fixing buckle 36 connected to the hydraulic lifting device 33, a control box for controlling the sliding of the slide rail 31, and a tension sensor for detecting data of the tension applied by the pull rod type hydraulic jack 32. The slide rail 31 includes a slide rail 1 and a slide rail 2 symmetrically arranged on both sides of the support platform 2; the extension direction of the slide rail 1 and the slide rail 2 is parallel to the extension direction of the support platform 2; the sliding direction of the slide rail 1 and the slide rail 2 is parallel to the extension direction of the support platform 2. The fixing buckle 36 includes a caliper 1 361, a caliper 2 362 parallel to the caliper 1 361, a connecting rod 363 for connecting the bottom end of the caliper 1 361 and the bottom end of the caliper 2 362 and located on the same side of the caliper 1 361, a first fastening plate 364 for supporting the caliper 1 361 and arranged on the slide rail 1, and a second fastening plate for supporting the caliper 2 362 and arranged on the slide rail 2. The connecting rod 363 includes a connecting rod 1 and a connecting rod 2 which is parallel to and opposite to the connecting rod 1; the caliper 1 361 is movably connected to the first fastening plate 364; the caliper 2 362 is movably connected to the second fastening plate; the jaws of the caliper 1 361 and the jaws of the caliper 2 362 are both opened in a direction away from the support platform 2, and the opening directions of the jaws of the caliper 1 361 and the jaws of the caliper 2 362 are perpendicular to the extension direction of the support platform 2. The reaction block 34 is arranged across the slide rail 1 and the slide rail 2; the reaction block 34 is an "L"-shaped reaction block 34 in cross section.
[0028] In this way, by installing the anchor rod pulling test tool on the boom of the rock drilling trolley, it can not only replace the traditional manual test with a high degree of mechanization, but also ensure that the anchor rod 7 is only subjected to the tension perpendicular to the rock wall 4, making the test data more accurate. In addition, for the anchor rod 7 that is difficult to reach at a high position or located on the top plate, it can also be tested by cooperating with the boom of the trolley.
[0029] Specifically, in some embodiments of the utility model, the tie rod type hydraulic jack 32 includes a jack 321 arranged on the slide rail 31, a tie rod 322 connected to one side of the jack 321 and away from the drill pipe power unit 1; the number of the tie rod type hydraulic jack 32 is two; the two tie rod type hydraulic jacks 32 are symmetrically arranged on the slide rail 1 and the slide rail 2. The hydraulic lifting device 33 includes a base 331 connected to the other end of the tie rod 322 and located on the slide rail 31, and a telescopic rod 332 placed on the top of the base 331; the top of the telescopic rod 332 is connected to the fixing buckle 36. The number of the hydraulic lifting devices 33 is two; the two hydraulic lifting devices 33 are symmetrically arranged on the slide rail 1 and the slide rail 2.
[0030] Such arrangement, in conjunction with the boom of the rock drilling trolley, provides a force for the pull-rod type hydraulic jack 32 to apply during the anchor pulling test through the friction force of the slide rail 31, thereby avoiding the interference factors of the mixed pulling and shearing forces that are prone to occur when the machine is manually controlled in the past; and by controlling the telescopic rod 332 in the hydraulic lifting device 33 and thus controlling the clamping degree of the caliper in the fixed clamp, a lot of manpower is saved.
[0031] The laser distance measuring probe 35 is located at the bottom end of the reaction block 34 and close to the surface of the fixing buckle 36 .
[0032] With such arrangement, when performing an anchor pulling test, the laser emitted by the laser ranging probe 35 hits the hydraulic lifting device 33, and the anchor pulling displacement is easily obtained, which can be used to calculate relevant data of the anchor pulling.
[0033] The anchor rod pulling detection tooling applied to the anchor rod lifting vehicle provided by the utility model is specifically described below in conjunction with the embodiments.
[0034] Example
[0035] like Figures 1-2 As shown, this embodiment provides an anchor rod pulling detection tooling applied to an anchor rod lifting vehicle, comprising: a drill rod power unit 1, a support platform 2 for supporting the drill rod power unit 1, and a pulling device located on the surface of the support platform 2 and away from one end of the drill rod power unit 1;
[0036] The pulling device includes a slide rail 31 arranged on the table surface of the support platform 2, a pull rod type hydraulic jack 32 arranged on the slide rail 31, a hydraulic lifting device 33 connected to the pull rod type hydraulic jack 32, a reaction block 34 arranged at the end of the support platform 2, a laser ranging probe 35 arranged on the reaction block 34, a fixing buckle 36 connected to the hydraulic lifting device 33, a control box arranged on the boom of the rock drilling trolley and used to control the sliding of the slide rail 31, and a tension sensor used to detect data on the tension applied by the pull rod type hydraulic jack 32.
[0037] The slide rail 31 includes a slide rail 1 and a slide rail 2 symmetrically arranged on both sides of the support platform 2; the extension direction of the slide rail 1 and the slide rail 2 is parallel to the extension direction of the support platform 2; the sliding direction of the slide rail 1 and the slide rail 2 is parallel to the extension direction of the support platform 2.
[0038] The tie rod type hydraulic jack 32 includes a jack 321 arranged on the slide rail 31, and a tie rod 322 connected to one side of the jack 321 and away from the drill pipe power unit 1; the number of the tie rod type hydraulic jacks 32 is two; the two tie rod type hydraulic jacks 32 are symmetrically arranged on the slide rail one and the slide rail two.
[0039] The hydraulic lifting device 33 includes a base 331 connected to the other end of the pull rod 322 and located on the slide rail 31, a telescopic rod 332 placed on the top of the base 331, a motor for controlling the telescopic rod 332 to extend and retract, and a switch for controlling the movement of the motor; the top of the telescopic rod 332 is connected to the fixing buckle 36. There are two hydraulic lifting devices 33; the two hydraulic lifting devices 33 are symmetrically arranged on the first slide rail and the second slide rail.
[0040] The reaction block 34 is arranged across the first slide rail and the second slide rail; the reaction block 34 is an L-shaped reaction block 34 in cross section. The reaction block 34 includes a first plate arranged across the first slide rail and the second slide rail, and a second plate arranged on the first plate.
[0041] The laser distance measuring probe 35 is located on the surface of the first plate and close to the fixing buckle 36 .
[0042] The fixing buckle 36 includes a caliper 1 361, a caliper 2 362 parallel to the caliper 1 361, a connecting rod 363 for connecting the bottom end of the caliper 1 361 and the bottom end of the caliper 2 362 located on the same side of the caliper 1 361, a first fastening plate 364 for supporting the caliper 1 361 and disposed on the slide rail 1, and a second fastening plate for supporting the caliper 2 362 and disposed on the slide rail 2. The connecting rod 363 includes a first connecting rod and a second connecting rod parallel to and opposite to the first connecting rod, and the extending direction of the connecting rod 363 is parallel to the extending direction of the support platform 2. The caliper 1 361 is movably connected to the first fastening plate 364 (the caliper 1 361 is formed by the first half caliper and the second half caliper being movably connected through the first fastening plate 364, so the jaws can be opened and closed, and the subsequent combination of the caliper 2 362 is consistent with this, and will not be repeated); the caliper 2 362 is movably connected to the second fastening plate; the jaws of the caliper 1 361 and the jaws of the caliper 2 362 are both opened in the direction away from the support platform 2, and the jaws of the caliper 1 361 and the jaws of the caliper 2 362 are perpendicular to the extension direction of the support platform 2. The jaw surface of the caliper 1 361 (and the jaw surface of the caliper 2 362) is perpendicular to the extension direction of the support platform 2.
[0043] The following is a description of the working process of an anchor rod pulling detection tooling for an anchor rod lifting vehicle provided by the utility model:
[0044] like Figures 1 to 4As shown, the anchor rod pulling detection tooling used for the anchor rod lifting vehicle is first installed on the boom of the rock drilling trolley (the pulling device on the support platform 2 is at the end of the boom of the support platform 2 away from the rock drilling trolley). Then, a drill rod for inserting the anchor rod 7 on the rock wall 4 is installed on the drill rod power unit 1, wherein the other end of the drill rod falls on the fixed buckle 36; an anchor rod tray 6 is placed on the outer rock wall at the target position, and the control switch of the drill rod power unit 1 is turned on. After the drill rod is driven into the rock wall 4 to a suitable depth, the fixed buckle 36 is sent to the anchor ring 52, and the connecting rod 363 is pushed by the hydraulic lifting device 33 to clamp the anchor ring 52; at this time, the reaction block 34 resists the anchor rod tray 6. Then, the switch of the control box is turned on, and the pull rod type hydraulic jack 32 is driven to move by the movement of the slide rail 31 (toward the direction of the drill rod power unit 1), thereby applying a pulling force to pull the drill rod out of the rock wall 4; and the anchor rod 7 is inserted into this deep hole. Next, remove the drill rod from the drill rod power unit 1, reset the pull rod type hydraulic jack 32 in the pulling device, and install the pipe seam anchor 51 on the drill rod power unit 1. Then place an anchor tray 6 on the outer rock wall between the anchor 7 and the rock wall 4, and then turn on the control switch of the drill rod power unit 1 to insert the pipe seam anchor 51 between the anchor 7 and the rock wall 4 to a suitable depth. Then, send the fixing buckle 36 to the anchor ring 52 of the pipe seam anchor 51, and clamp the anchor ring 52 with the jaws. The state to be pulled is as shown in FIG. Figure 2 As shown; at this time, the reaction block 34 is against the anchor tray 6, which can provide a reverse force when doing the anchor pull test; then the switch of the control box is turned on, and the pull rod type hydraulic jack 32 is driven to move by the movement of the slide rail 31 (towards the direction of the drill rod power unit 1), thereby applying a pulling force to pull the pipe seam anchor 51 out of the anchor 7 and the rock wall 4 for a distance, and the pulled state is as shown in FIG. Figure 3 As shown; wherein, during the pulling process, the tension sensor receives the pressure applied by the pull rod type hydraulic jack 32, and then obtains the pull-out resistance data of the pipe seam anchor 51; and the laser emitted by the laser ranging probe 35 hits the hydraulic lifting device 33, and obtains the displacement of the anchor rod pulling, which can be used to calculate the relevant data of the anchor rod pulling. During the whole process, whether the drill rod or the pipe seam anchor 51 is placed on the fixed buckle 36, the telescopic rod 332 in the liquid level lifting device can push the connecting rod 363 to move through the telescopic length, and then adjust the opening and closing size of the caliper 1 361 and the caliper 2 362 in the fixed buckle 36, so that the jaws in the caliper clamp the drill rod and the pipe seam anchor 51, and it is not easy to fall.
[0045] In summary, the utility model provides an anchor rod pulling detection tooling applied to an anchor rod lifting vehicle. The device is provided with a drill rod power unit, a support platform for supporting the drill rod power unit, and a pulling device located on the support platform; the pulling device includes a slide rail arranged on the support platform, a pull rod type hydraulic jack arranged on the slide rail, a hydraulic lifting device connected to the pull rod type hydraulic jack, a reaction block arranged at the end of the support platform, a laser ranging probe arranged on the reaction block, a fixing buckle connected to the hydraulic lifting device, a control box for controlling the sliding of the slide rail, and a tension sensor for detecting the data of the tension applied by the pull rod type hydraulic jack. In this way, by installing the anchor rod pulling detection tooling on the boom of the rock drilling trolley, it can not only replace the traditional manual test with a high degree of mechanization, but also ensure that the anchor rod is only subjected to the tension perpendicular to the rock wall, so that the test data is more accurate. In addition, for anchor rods that are difficult to reach at a high position or located on the top plate, they can also be tested by cooperating with the boom of the trolley.
[0046] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.
Claims
1. An anchor rod pulling detection tool used for an anchor rod lifting vehicle, characterized in that: include: A drill rod power unit, a support platform for supporting the drill rod power unit, and a pulling device located on the surface of the support platform and away from one end of the drill rod power unit; the pulling device includes a slide rail arranged on the surface of the support platform, a pull-rod type hydraulic jack arranged on the slide rail, a hydraulic lifting device connected to the pull-rod type hydraulic jack, a reaction block arranged at the end of the support platform, a laser ranging probe arranged on the reaction block, a fixing buckle connected to the hydraulic lifting device, a control box for controlling the sliding of the slide rail, and a tension sensor for detecting data of the tension applied by the pull-rod type hydraulic jack.
2. The anchor rod pulling detection tooling used for anchor rod lifting vehicle according to claim 1 is characterized in that: The slide rails include a slide rail 1 and a slide rail 2 symmetrically arranged on both sides of the support platform; the extension direction of the slide rail 1 and the slide rail 2 is parallel to the extension direction of the support platform; the sliding direction of the slide rail 1 and the slide rail 2 is parallel to the extension direction of the support platform.
3. The anchor rod pulling detection tooling used for anchor rod lifting vehicle according to claim 2 is characterized in that: The pull rod type hydraulic jack comprises a jack arranged on the slide rail and a pull rod connected to one side of the jack and away from the drill rod power unit.
4. The anchor rod pulling detection tooling used for anchor rod lifting vehicle according to claim 3 is characterized in that: The number of the pull-rod type hydraulic jacks is two; the two pull-rod type hydraulic jacks are symmetrically arranged on the slide rail 1 and the slide rail 2.
5. The anchor rod pulling detection tooling used for anchor rod lifting vehicle according to claim 3 is characterized in that: The hydraulic lifting device comprises a base connected to the other end of the pull rod and located on the slide rail, and a telescopic rod placed on the top end of the base; the top end of the telescopic rod is connected to the fixing buckle.
6. The anchor rod pulling detection tooling used for anchor rod lifting vehicle according to claim 5 is characterized in that: The number of the hydraulic lifting devices is two; the two hydraulic lifting devices are symmetrically arranged on the first slide rail and the second slide rail.
7. The anchor rod pulling detection tooling used for anchor rod lifting vehicle according to claim 3 is characterized in that: The reaction block is arranged across the slide rail 1 and the slide rail 2; the reaction block is a reaction block with an "L"-shaped cross section.
8. The anchor rod pulling detection tooling used for anchor rod lifting vehicle according to claim 5 is characterized in that: The fixing buckle includes a caliper one, a caliper two parallel to the caliper one, a connecting rod for connecting the bottom end of the caliper one and the bottom end of the caliper two and located on the same side of the caliper one, a first fastening plate for supporting the caliper one and arranged on the slide rail one, and a second fastening plate for supporting the caliper two and arranged on the slide rail two.
9. The anchor rod pulling detection tooling used for anchor rod lifting vehicle according to claim 8 is characterized in that: The connecting rod includes a connecting rod 1 and a connecting rod 2 which is parallel to and opposite to the connecting rod 1; the caliper 1 is movably connected to the first fastening plate; the caliper 2 is movably connected to the second fastening plate; the jaws of the caliper 1 and the jaws of the caliper 2 are both opened in a direction away from the support platform.
10. The anchor rod pulling detection tooling used for anchor rod lifting vehicle according to claim 7 is characterized in that: The laser distance measuring probe is located at the bottom end of the reaction block and close to the surface of the fixing buckle.