Anchoring rod pulling device for engineering quality detection
By designing anchor bolt pulling equipment that adapts to anchor bolts of different sizes, the problems of poor applicability and high replacement costs of traditional equipment have been solved, enabling flexible fixing and disassembly operations and reducing replacement costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG HUAJIAN ENG TESTING CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional anchor bolt pulling equipment uses clamps of uniform size, which makes it unsuitable for anchor bolts of different sizes. Furthermore, when the clamps are damaged, the entire equipment must be replaced, resulting in high operating costs.
An anchor bolt pulling device was designed, which includes components such as hydraulic cylinder, guide plate, connecting rod, and sleeve. The anchor bolt is fixed by the cooperation of collar and limit ring. The pin and fastening nut are easy to disassemble. The telescopic shell and support ring are adjustable to adapt to different sizes and supports, increasing flexibility.
It enables flexible fixing and disassembly of anchor bolts of different sizes, reducing replacement costs and improving the applicability and flexibility of the equipment.
Smart Images
Figure CN224552932U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pulling equipment technology, and more specifically, it relates to an anchor bolt pulling device for engineering quality testing. Background Technology
[0002] In engineering quality inspection, anchor bolt pull-out equipment is a key tool for testing the pull-out bearing capacity of anchor bolts (or anchor cables). The test results directly affect the safety of the support structure. The anchor bolt pull-out equipment applies tension to the anchor bolt through a hydraulic system, simulating the stress state under actual working conditions. During the test, hydraulic jacks gradually increase the pull-out force on the anchor bolt, while displacement sensors monitor the displacement changes. Data acquisition equipment records these data in real time, and by analyzing the load-displacement curves, the pull-out bearing capacity and stability of the anchor bolt can be evaluated.
[0003] However, traditional pulling equipment mostly uses clamps to fix one end of the anchor rod. Since the inner wall size of the clamps is uniform, it is not suitable for pulling anchor rods of different sizes.
[0004] Furthermore, the clamps cannot be disassembled, which means that if the clamps deform or even break after prolonged use, the entire drawing equipment needs to be replaced, resulting in high operating costs. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the problems existing in the prior art, this utility model provides an anchor bolt pulling device for engineering quality testing, which solves the technical problem mentioned in the background art that most traditional pulling devices use clamps to fix one end of the anchor bolt. Since the inner wall size of the clamps is uniform, they are not suitable for pulling anchor bolts of different sizes.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: an anchor bolt pulling device for engineering quality testing, comprising a housing, a hydraulic cylinder fixedly mounted on the upper end face of the housing, a guide plate fixedly mounted on the output end of the hydraulic cylinder passing through the housing, the guide plate being slidably mounted with the housing, a connecting rod fixedly mounted on the lower end face of the guide plate, an installation cylinder fixedly mounted on the bottom of the connecting rod, an installation rod slidably mounted inside the installation cylinder, a limiting ring being provided at the bottom of the installation rod, a collar being rotatably mounted on the outer side of the limiting ring, a sleeve being fixedly mounted on the bottom of the collar, and an installation nut being fixedly mounted on the bottom of the sleeve.
[0009] The present invention is further configured such that the mounting cylinder and the mounting rod are respectively provided with insertion holes, and a pin is slidably provided inside the insertion hole. Both ends of the pin are flush with the outer wall of the mounting cylinder. A fastening nut is provided on the outer wall of the mounting cylinder. The fastening nut is threadedly connected to the outer wall of the mounting cylinder. Both ends of the pin are in contact with the inner wall of the fastening nut, which facilitates the disassembly and assembly of the sleeve.
[0010] The present invention is further configured such that positioning blocks are fixedly provided on the outer wall of the mounting rod on both sides, and positioning grooves are correspondingly provided on the inner wall of the mounting cylinder, with the positioning blocks located inside the positioning grooves, which facilitates the positioning and installation of the mounting rod.
[0011] The present invention is further configured such that a telescopic shell is slidably provided on the outer side of the housing, a support ring is fixedly provided on the lower end face of the telescopic shell, threaded columns are fixedly provided on the upper end face of the telescopic shell on both sides, a top plate is fixedly provided on the outer wall of the housing, the threaded columns are slidably installed with the top plate, and an adjusting nut is provided on each threaded column. The adjusting nut contacts the upper and lower sides of the top plate to facilitate adjustment of the extension distance of the telescopic shell.
[0012] The present invention is further provided in that the inner wall of the telescopic shell is provided with a sliding groove on both sides, and the outer wall of the shell is provided with a corresponding slider. The slider is movably installed inside the sliding groove to facilitate the guidance of the telescopic shell.
[0013] The present invention is further configured such that the sleeve can enter the interior of the housing, facilitating the pulling of the anchor rod.
[0014] The present invention is further provided with a rubber pad fixed at the bottom of the support ring, which facilitates increasing the friction between the support ring and the object in contact.
[0015] The present invention is further provided with handles on the upper surface of the top plate and on both sides, so as to facilitate the picking up of the device.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, this utility model provides an anchor bolt pull-out device for engineering quality testing, which has the following beneficial effects:
[0018] 1. By setting up a hydraulic cylinder, guide plate, connecting rod and sleeve, the user can rotate the sleeve through the cooperation of the collar and the limit ring, so that the installation nut and the threaded connection of one end of the anchor rod are connected, thereby achieving the effect of fixing the sleeve and one end of the anchor rod. Then, the hydraulic cylinder is controlled to make the guide plate drive the anchor rod to move, so as to achieve the effect of pulling, which facilitates subsequent testing.
[0019] 2. By setting up a socket, pin, and fastening nut, the user can remove the fastening nut to detach the pin. At this point, the pin can be removed from the inside of the socket to separate the mounting rod and mounting sleeve, thereby achieving the effect of disassembling the sleeve and mounting nut. This facilitates the replacement and installation of different models of fastening equipment and increases the flexibility of the device in use.
[0020] 3. By setting up a telescopic shell, a support ring, and a threaded post, the user can adjust the extension length of the bottom of the telescopic shell through the cooperation of the threaded post and the top plate, so that the bottom of the support ring contacts the external object, thereby achieving the effect of supporting the device, facilitating the subsequent pulling operation of the hydraulic cylinder, and making it convenient to use. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of an anchor bolt pulling device for engineering quality testing in its unused state.
[0022] Figure 2 This is a schematic diagram showing the installation of the connecting rod, sleeve, mounting nut, and fastening nut on the guide plate.
[0023] Figure 3 Exploded view of the installation of the mounting cylinder, mounting rod, pin, and fastening nut;
[0024] Figure 4 A sectional view showing the installation of the mounting rod, limit ring, collar, sleeve, and mounting nut;
[0025] Figure 5 This is a schematic diagram showing the positions of the threaded post, support ring, and rubber pad on the telescopic shell.
[0026] In the diagram: 1. Housing; 2. Hydraulic cylinder; 3. Guide plate; 4. Connecting rod; 5. Mounting cylinder; 6. Mounting rod; 7. Limiting ring; 8. Collar; 9. Sleeve; 10. Mounting nut; 11. Insertion hole; 12. Pin; 13. Fastening nut; 14. Positioning block; 15. Positioning groove; 16. Telescopic shell; 17. Support ring; 18. Threaded post; 19. Top plate; 20. Adjusting nut; 21. Slide groove; 22. Slider; 23. Rubber pad; 24. Handle. Detailed Implementation
[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0030] Please see Figure 1-5 An anchor bolt pulling device for engineering quality testing includes a housing 1. A hydraulic cylinder 2 is fixedly mounted on the upper end face of the housing 1. The output end of the hydraulic cylinder 2 passes through the housing 1 and is fixedly mounted on a guide plate 3. The guide plate 3 is slidably mounted on the housing 1. A connecting rod 4 is fixedly mounted on the lower end face of the guide plate 3. An installation cylinder 5 is fixedly mounted on the bottom of the connecting rod 4. An installation rod 6 is slidably mounted inside the installation cylinder 5. A limiting ring 7 is provided at the bottom of the installation rod 6. A collar 8 is rotatably mounted on the outside of the limiting ring 7. A sleeve 9 is fixedly mounted on the bottom of the collar 8. An installation nut 10 is fixedly mounted on the bottom of the sleeve 9. The sleeve 9 can enter the interior of the housing 1.
[0031] In this embodiment, both the mounting cylinder 5 and the mounting rod 6 are provided with corresponding insertion holes 11. A pin 12 is slidably provided inside the insertion hole 11. Both ends of the pin 12 are flush with the outer wall of the mounting cylinder 5. A fastening nut 13 is provided on the outer wall of the mounting cylinder 5. The fastening nut 13 is threadedly connected to the outer wall of the mounting cylinder 5. Both ends of the pin 12 are in contact with the inner wall of the fastening nut 13. Positioning blocks 14 are fixedly provided on both sides of the outer wall of the mounting rod 6. A positioning groove 15 is provided on the inner wall of the mounting cylinder 5. The positioning block 14 is located inside the positioning groove 15.
[0032] More specifically, the user can rotate the sleeve 9 by the cooperation of the collar 8 and the limiting ring 7, so that the mounting nut 10 is threadedly connected to one end of the anchor rod, thereby fixing the sleeve 9 and one end of the anchor rod. Then, the hydraulic cylinder 2 is controlled to move the guide plate 3 to achieve a pulling effect, which facilitates subsequent testing. When the size of the anchor rod is not suitable, the fastening nut 13 can be removed to disengage it from the pin 12. At this time, the pin 12 can be removed from the inside of the insertion hole 11 to separate the mounting rod 6 and the mounting sleeve 5, thereby disassembling the sleeve 9 and the mounting nut 10. This facilitates the replacement and installation of different models of fastening equipment, increasing the flexibility of the device in use.
[0033] Please see Figure 1 and Figure 5As an implementation method for adjusting the extension length of the telescopic shell 16 so that the support ring 17 contacts the wall or ground: the telescopic shell 16 is slidably provided on the outer side of the shell 1, the support ring 17 is fixedly provided on the lower end face of the telescopic shell 16, threaded posts 18 are fixedly provided on the upper end face of the telescopic shell 16 on both sides, a top plate 19 is fixedly provided on the outer wall of the shell 1, the threaded posts 18 are slidably installed with the top plate 19, and each threaded post 18 is provided with an adjusting nut 20, which contacts the upper and lower sides of the top plate 19. The inner wall of the telescopic shell 16 is provided with a sliding groove 21 on both sides, and a corresponding slider 22 is provided on the outer wall of the shell 1. The slider 22 is movably installed inside the sliding groove 21. The upper end face of the top plate 19 is provided with a handle 24 on both sides.
[0034] Specifically, the user can adjust the extension length of the bottom of the telescopic shell 16 by the cooperation of the threaded column 18 and the top plate 19, so that the bottom of the support ring 17 contacts the external object, thereby achieving the effect of supporting the device, which facilitates the subsequent pulling operation of the hydraulic cylinder 2 and makes it convenient to use.
[0035] Please refer to Figure 5 As a further embodiment of increasing the friction between the support ring 17 and the external contact object: a rubber pad 23 is fixedly provided at the bottom of the support ring 17.
[0036] Specifically, the rubber pad 23 can increase the friction between the support ring 17 and the object it contacts, preventing slippage.
[0037] In summary, when using the overall equipment: the user can rotate the sleeve 9 by the cooperation of the collar 8 and the limiting ring 7, so that the mounting nut 10 is threadedly connected to one end of the anchor rod, thereby fixing the sleeve 9 and one end of the anchor rod. Then, the extension length of the bottom of the telescopic shell 16 is adjusted by the cooperation of the threaded post 18 and the top plate 19, so that the bottom of the support ring 17 contacts the external object, thereby supporting the device. Then, the adjusting nut 20 is used for fixing. Finally, the hydraulic cylinder 2 is controlled to move the guide plate 3 to achieve the pulling effect, which facilitates subsequent testing. When the size of the anchor rod is not suitable, the fastening nut 13 can be removed to disengage it from the pin 12. At this time, the pin 12 can be removed from the inside of the insertion hole 11 to separate the mounting rod 6 and the mounting sleeve 5, thereby disassembling the sleeve 9 and the mounting nut 10. This facilitates the replacement and installation of different models of fastening equipment, increasing the flexibility of the device during use.
[0038] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. An anchor bolt pulling device for engineering quality inspection, comprising a housing (1), characterized in that: A hydraulic cylinder (2) is fixedly provided on the upper end face of the housing (1). The output end of the hydraulic cylinder (2) passes through the housing (1) and is fixedly provided with a guide plate (3). The guide plate (3) is slidably installed with the housing (1). A connecting rod (4) is fixedly provided on the lower end face of the guide plate (3). An installation cylinder (5) is fixedly provided at the bottom of the connecting rod (4). An installation rod (6) is slidably provided inside the installation cylinder (5). A limiting ring (7) is provided at the bottom of the installation rod (6). A collar (8) is rotatably provided on the outside of the limiting ring (7). A sleeve (9) is fixedly provided at the bottom of the collar (8). An installation nut (10) is fixedly provided at the bottom of the sleeve (9).
2. The anchor bolt pulling device for engineering quality testing according to claim 1, characterized in that: Both the mounting cylinder (5) and the mounting rod (6) are provided with corresponding insertion holes (11). A pin (12) is slidably provided inside the insertion hole (11). Both ends of the pin (12) are flush with the outer wall of the mounting cylinder (5). A fastening nut (13) is provided on the outer wall of the mounting cylinder (5). The fastening nut (13) is threadedly connected to the outer wall of the mounting cylinder (5). Both ends of the pin (12) are in contact with the inner wall of the fastening nut (13).
3. The anchor bolt pulling device for engineering quality testing according to claim 2, characterized in that: Positioning blocks (14) are fixedly provided on the outer wall of the mounting rod (6) and on both sides. Positioning grooves (15) are correspondingly provided on the inner wall of the mounting cylinder (5). The positioning blocks (14) are located inside the positioning grooves (15).
4. The anchor bolt pulling device for engineering quality testing according to claim 1, characterized in that: A telescopic shell (16) is slidably provided on the outer side of the housing (1). A support ring (17) is fixedly provided on the lower end face of the telescopic shell (16). Threaded columns (18) are fixedly provided on the upper end face of the telescopic shell (16) and on both sides. A top plate (19) is fixedly provided on the outer wall of the housing (1). The threaded columns (18) are all slidably installed with the top plate (19). An adjusting nut (20) is provided on each threaded column (18). The adjusting nut (20) is in contact with the upper and lower sides of the top plate (19).
5. The anchor bolt pull-out device for engineering quality testing according to claim 4, characterized in that: The inner wall of the telescopic shell (16) is provided with a sliding groove (21) on both sides, and a corresponding slider (22) is provided on the outer wall of the shell (1). The slider (22) is movably installed inside the sliding groove (21).
6. The anchor bolt pulling device for engineering quality testing according to claim 1, characterized in that: The sleeve (9) can enter the interior of the housing (1).
7. The anchor bolt pulling device for engineering quality testing according to claim 4, characterized in that: A rubber pad (23) is fixedly provided at the bottom of the support ring (17).
8. The anchor bolt pull-out device for engineering quality testing according to claim 4, characterized in that: The top plate (19) is provided with handles (24) on both sides.