A tunnel anchor bolt pull-out device

By designing a tunnel anchor bolt pulling device that uses a rotating stepping plate and magnetic plates for adsorption, the problem of requiring multiple disassemblies of fasteners in traditional devices is solved, enabling convenient and stable multi-point detection.

CN224945772UActive Publication Date: 2026-11-06SICHUAN GAOLU INFORMATION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522528049.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-28
Publication Date
2026-11-06
Estimated Expiration
2035-11-28

AI Technical Summary

Technical Problem

Traditional tunnel anchor bolt pull-out devices require multiple disassemblies of bolts or screws during use, which is inconvenient.

Method used

A tunnel anchor bolt pulling device was designed, including a control device, a puller, a fixing plate, a fixing frame, a bushing, a shaft, and a foot plate. The foot plate is rotated to make it fit against the ground for fixing. The design of magnetic plate adsorption and external threaded rod sleeve nut achieves convenient fixing and stability.

Benefits of technology

It enables quick fixation without frequent disassembly of fasteners when inspecting multiple points, by using a rotating foot plate and magnetic plates for adsorption, thus improving ease of use and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a tunnel anchor bolt pull-out device, including a control device. A control rod is installed on the top of the control device, a puller is connected to one end of the control device, a fixing plate is installed on the side of the control device, a fixing frame is welded to the surface of the fixing plate, a bushing is welded to the other end of the fixing frame, a shaft is sleeved inside the bushing, a foot plate is welded to one end of the shaft, and an installation plate is provided at the bottom of the control device. This tunnel anchor bolt pull-out device, by installing a control rod on the top of the control device and connecting a puller to one end of the control device, and installing a fixing plate on the side of the control device, allows the bottom of the foot plate to be in contact with the ground. Then, the control device can be directly fixed by stepping on the foot plate, making it very convenient to change positions and use.
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Description

Technical Field

[0001] This utility model belongs to the field of anchor bolt pulling technology, and in particular relates to a tunnel anchor bolt pulling device. Background Technology

[0002] An anchor pull-out tester is an on-site testing instrument used to detect the anchoring force of anchor bolts, reinforcing bars, expansion bolts, and other anchoring materials. In tunnels, anchor pull-out testers are required for testing anchor bolts, reinforcing bars, and expansion bolts.

[0003] The following problems exist in the actual use of existing tunnel anchor bolt pulling devices: Traditional tunnel anchor bolt pulling devices require a lifting and pressing control rod to drive the device. To ensure its stability, bolts or screws are usually used to fix it. When there are many locations to be tested, the bolts or screws need to be disassembled multiple times, which is inconvenient to use. Utility Model Content

[0004] The purpose of this invention is to provide a tunnel anchor bolt pulling device to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows: A tunnel anchor bolt pulling device includes a control device, a control rod installed on the top of the control device, a puller connected to one end of the control device, a fixing plate installed on the side of the control device, a fixing frame welded to the surface of the fixing plate, a bushing welded to the other end of the fixing frame, a shaft sleeve sleeved inside the bushing, a step plate welded to one end of the shaft, an installation plate provided at the bottom of the control device, the installation plates being symmetrically distributed, a slot opened at the other end of the control device, a magnet piece being snapped into the slot, the step plate being made of iron, and the surface of the step plate being attached to the surface of the magnet piece.

[0006] Preferably, a support rod is welded to the top of the control device, the support rods are symmetrically distributed, and a support plate is welded to the other end of the support rod, the inner wall of the support plate being attached to the control rod.

[0007] Preferably, the control device has an externally threaded rod welded to its side, the externally threaded rod passing through the fixing plate, a nut being sleeved on the surface of the externally threaded rod, one end of the nut being attached to the side of the fixing plate, and the fixing plates being symmetrically distributed.

[0008] Preferably, the control device has a fixed rod welded to its bottom, a sliding groove is formed at the top of the mounting plate, a limiting groove is formed at the bottom of the mounting plate, the limiting groove is located at the bottom of the sliding groove, the fixed rod is located inside the sliding groove, and a baffle is welded to the other end of the fixed rod, the baffle is located inside the limiting groove.

[0009] Preferably, the pallet is connected to the card plate via a rotating shaft, a first side plate is welded to the surface of the pallet, a second side plate is welded to the side of the card plate, a card block is fixedly connected to the top of the first side plate, and a card hole is opened on the top of the second side plate, with the card block engaging inside the card hole.

[0010] Preferably, a fixing seat is fixedly connected to the side of the mounting plate, and a handle is fixedly connected to the other end of the fixing seat.

[0011] This utility model discloses a tunnel anchor bolt pulling device with the following advantages: The device includes a control rod installed on top of the control unit, a puller connected to one end of the control unit, a fixing plate installed on the side of the control unit, a fixing frame welded to the surface of the fixing plate, a bushing welded to the other end of the fixing frame, and a shaft sleeve fitted inside the bushing. A foot plate is welded to one end of the shaft, and a mounting plate is provided at the bottom of the control unit. These mounting plates are symmetrically distributed. When using the device, if only a single point needs to be detected, the device can be directly fixed using the mounting plates. When there are multiple points to be detected, the foot plate can be rotated around the shaft and bushing until it forms a right angle with the control unit. At this point, the bottom of the foot plate will be in contact with the ground, and the device can be fixed by stepping on it with the ball of the foot. This makes repositioning very convenient and easy to use. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the stepping plate structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the mounting plate structure of this utility model;

[0016] Figure 4 For the present utility model Figure 2 Enlarged view of section A in the middle;

[0017] Figure 5 For the present utility model Figure 2 Enlarged view of section B;

[0018] Figure 6 For the present utility model Figure 3Enlarged view of section C.

[0019] The markings in the diagram are as follows: 1. Control device; 2. Puller; 3. Mounting plate; 4. Fixed base; 5. Handle; 6. Limiting groove; 7. Slide groove; 8. Fixed rod; 9. Baffle; 10. Control rod; 11. Locking hole; 12. External threaded rod; 13. Nut; 14. Fixing plate; 15. Fixing bracket; 16. Bushing; 17. Shaft; 18. Step plate; 19. Locking groove; 20. Magnet piece; 21. Support rod; 22. Support plate; 23. Locking plate; 24. First side plate; 25. Second side plate; 26. Locking block. Detailed Implementation

[0020] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0021] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0024] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0025] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a tunnel anchor bolt pulling device.

[0026] like Figure 1-6 As shown, this utility model discloses a tunnel anchor bolt pulling device, including a control device 1. A control rod 10 is installed on the top of the control device 1. One end of the control device 1 is connected to a puller 2. A fixing plate 14 is installed on the side of the control device 1. A fixing frame 15 is welded to the surface of the fixing plate 14. A bushing 16 is welded to the other end of the fixing frame 15. A shaft 17 is sleeved inside the bushing 16. A step plate 18 is welded to one end of the shaft 17. An installation plate 3 is provided at the bottom of the control device 1. The installation plates 3 are symmetrically distributed. By installing the step plate 18, when the device detects a large number of points, the step plate 18 can be rotated around the shaft 17 and the bushing 16 until the step plate 18 and the control device 1 are at a right angle. At this time, the bottom of the step plate 18 will be in contact with the control device 1. After placing the foot on the ground, the control device 1 can be fixed by stepping on the footplate 18. This makes it very convenient to change positions later. The other end of the control device 1 has a slot 19, which holds a magnet 20. The footplate 18 is made of iron, and its surface is attached to the surface of the magnet 20. By installing the magnet 20, and considering that the footplate 18 is made of iron, when the footplate 18 is not in use, it can be rotated around the shaft 17 and the bushing 16 until it is attached to the magnet 20. This provides an adsorption and fixation effect for the footplate 18, allowing it to be stored away. This makes it very convenient to use.

[0027] A support rod 21 is welded to the top of the control device 1. The support rods 21 are symmetrically distributed. A support plate 22 is welded to the other end of the support rod 21. The inner wall of the support plate 22 is attached to the control rod 10. By installing the support plate 22, the support plate 22 can provide a limiting effect for the control rod 10, so that the control rod 10 will not be damaged due to excessive downward pressure. It also provides protection for the control rod 10 during use.

[0028] The control device 1 has an externally threaded rod 12 welded to its side. The externally threaded rod 12 passes through the fixing plate 14. A nut 13 is fitted onto the surface of the externally threaded rod 12. One end of the nut 13 is attached to the side of the fixing plate 14. The fixing plates 14 are symmetrically distributed. By installing the externally threaded rod 12 and the nut 13, when installing the fixing plate 14, the externally threaded rod 12 can pass through the fixing plate 14. Then, the nut 13 can be fitted onto the surface of the externally threaded rod 12 until one end of the nut 13 is attached to the side of the fixing plate 14. At this time, the fixing plate 14 can be fixed, ensuring the stability of the fixing plate 14 during use.

[0029] A fixing rod 8 is welded to the bottom of the control device 1. A sliding groove 7 is opened on the top of the mounting plate 3, and a limiting groove 6 is opened on the bottom of the mounting plate 3. The limiting groove 6 is located at the bottom of the sliding groove 7. The fixing rod 8 is located inside the sliding groove 7. A baffle 9 is welded to the other end of the fixing rod 8. The baffle 9 is located inside the limiting groove 6. By opening the sliding groove 7 and the limiting groove 6, when the device is not in use, the mounting plate 3 can be moved through the sliding groove 7 and the limiting groove 6. At this time, the mounting plate 3 can be moved to the bottom of the device, thereby providing a storage effect for the mounting plate 3, which is very convenient to use.

[0030] The support plate 22 is connected to the clamping plate 23 via a pivot. A first side plate 24 is welded to the surface of the support plate 22, and a second side plate 25 is welded to the side of the clamping plate 23. A clamping block 26 is fixedly connected to the top of the first side plate 24, and a clamping hole 11 is opened on the top of the second side plate 25. The clamping block 26 is engaged inside the clamping hole 11. By installing the clamping plate 23, when the device is not in use, the clamping plate 23 can be rotated via the pivot until the first side plate 24 and the second side plate 25 are in contact with each other. At this time, the clamping block 26 will engage the clamping hole 11, thereby providing a fixing effect for the clamping plate 23. Under the action of the clamping plate 23 and the support plate 22, the control lever 10 can be limited, so that the control lever 10 will not move. During use, it is ensured that the control lever 10 will not move easily.

[0031] Mounting plate 3 is fixedly connected to mounting base 4 on one side, and a handle 5 is fixedly connected to the other end of mounting base 4. By installing handle 5, when using mounting plate 3, the handle 5 can be used as the force point, and the mounting plate 3 can be moved directly by the handle 5, which is very convenient to use.

[0032] The working principle of this tunnel anchor bolt pull-out device is as follows: When using this device, the fixing plate 14 should be installed first. During installation, the bushing 16 is first fitted onto the surface of the shaft 17. Then, the external threaded rod 12 passes through the fixing plate 14. Subsequently, the nut 13 is fitted onto the surface of the external threaded rod 12 until one end of the nut 13 is against the side of the fixing plate 14. This provides a fixing effect for the fixing plate 14, after which the device can be used. Since a control rod 10 is installed on the top of the control device 1, and a puller 2 is connected to one end of the control device 1, it provides… A fixing plate 14 is mounted on the side of the control device 1, and a fixing bracket 15 is welded to the surface of the fixing plate 14. A bushing 16 is welded to the other end of the fixing bracket 15, and a shaft 17 is fitted inside the bushing 16. A foot plate 18 is welded to one end of the shaft 17. A mounting plate 3 is provided at the bottom of the control device 1. The mounting plates 3 are symmetrically distributed. When the device is in use and only a single point needs to be detected, it can be directly fixed using the mounting plates 3. When there are many points to be detected, the foot plate 18 can be rotated around the shaft 17 and bushing 16 until it is fully depressed. The footplate 18 and the control device 1 are at a right angle. At this point, the bottom of the footplate 18 will be in contact with the ground, allowing the control device 1 to be fixed by stepping on it with the ball of the foot. This makes repositioning very convenient and easy to use. Then, the locking hole 11 and the locking block 26 can be separated. Next, the locking plate 23 can be rotated using the pivot until it no longer interferes with the movement of the control lever 10. Finally, the device can be controlled by the control lever 10. When the footplate 18 is not in use, it can be moved using the shaft 17 and the bushing 16 as the center. Rotate until the footplate 18 is attached to the magnet 20. At this point, the footplate 18 can be attached and fixed, thus storing the footplate 18. When the device is not in use, the clamping plate 23 can be rotated through the pivot until the first side plate 24 and the second side plate 25 are attached to each other. At this point, the clamping block 26 will engage with the clamping hole 11, thus fixing the clamping plate 23. Under the action of the clamping plate 23 and the support plate 22, the control rod 10 can be limited, so that the control rod 10 will not move. During use, the control rod 10 will not move easily.

[0033] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A tunnel anchor rod pulling device comprising a control device (1), characterized in that: The control device (1) has a control rod (10) installed on its top. One end of the control device (1) is connected to a puller (2). The control device (1) has a fixing plate (14) installed on its side. A fixing frame (15) is welded to the surface of the fixing plate (14). A bushing (16) is welded to the other end of the fixing frame (15). A shaft rod (17) is sleeved inside the bushing (16). A foot plate (18) is welded to one end of the shaft rod (17). An installation plate (3) is set at the bottom of the control device (1). The installation plates (3) are symmetrically distributed. A slot (19) is opened at the other end of the control device (1). A magnet piece (20) is snapped into the slot (19). The foot plate (18) is made of iron. The surface of the foot plate (18) is attached to the surface of the magnet piece (20).

2. A tunnel anchor puller according to claim 1, wherein: The control device (1) has a support rod (21) welded to the top. The support rod (21) is symmetrically distributed. The other end of the support rod (21) is welded to a support plate (22). The inner wall of the support plate (22) is attached to the control rod (10).

3. The tunnel anchor puller device of claim 1, wherein: The control device (1) has an external threaded rod (12) welded to its side. The external threaded rod (12) passes through the fixing plate (14). A nut (13) is sleeved on the surface of the external threaded rod (12). One end of the nut (13) is attached to the side of the fixing plate (14). The fixing plates (14) are symmetrically distributed.

4. The tunnel anchor puller device of claim 1, wherein: The control device (1) has a fixed rod (8) welded to its bottom. The mounting plate (3) has a sliding groove (7) on its top and a limiting groove (6) on its bottom. The limiting groove (6) is located at the bottom of the sliding groove (7). The fixed rod (8) is located inside the sliding groove (7). The other end of the fixed rod (8) has a baffle (9) welded to it. The baffle (9) is located inside the limiting groove (6).

5. The tunnel anchor puller device of claim 2, wherein: The tray (22) is connected to the card plate (23) via a rotating shaft. A first side plate (24) is welded to the surface of the tray (22), and a second side plate (25) is welded to the side of the card plate (23). A card block (26) is fixedly connected to the top of the first side plate (24), and a card hole (11) is opened on the top of the second side plate (25). The card block (26) is engaged inside the card hole (11).

6. A tunnel anchor puller as defined in claim 4 wherein: The mounting plate (3) is fixedly connected to the mounting base (4) on one side, and the other end of the mounting base (4) is fixedly connected to the handle (5).