A fixed support frame for testing the pulling performance of an anchor rod and cable
Patent Information
- Application Number
- CN202522230521.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-10-22
AI Technical Summary
[0002]锚杆锚索是建筑、矿山、隧道等工程领域中用于加固岩土体、保障结构稳定的关键构件，二者虽功能相近但结构略有差异：锚杆通常由单根高强度钢筋、钢管或玻璃钢等材料制成，一端通过锚固剂固定在岩土体内部，另一端伸出岩土体表面并配合螺母、垫板等部件锁定，通过杆体自身的抗拉强度传递岩土体内部应力，防止岩土体坍塌或变形；锚索则由多根高强度钢丝或钢绞线组成，经编束、张拉后通过锚固装置固定在深层稳定岩土体中，能承受更大的拉力，适用于岩土体稳定性较差或受力较大的场景，二者核心作用均为通过主动施加预应力或被动承受拉力，将岩土体内部的松散部分与深层稳定部分连接，约束岩土体的位移与变形，广泛应用于隧道开挖、矿山井下支护、边坡加固、高层建筑基坑支护等工程，为工程施工安全与结构长期稳定提供保障；因此，锚杆锚索的拉拔性能直接关系到工程的安全性与可靠性，所以在投入使用前必须进行拉拔性能测试，然而，传统的锚杆锚索拉拔性能测试固定方式存在诸多缺陷，严重影响测试结果的准确性与测试过程的安全性：首先，传统固定装置多为专用结构，仅能适配单一规格直径的锚杆锚索，当测试不同直径的锚杆锚索时，需更换整套固定装置，不仅增加了设备成本，还延长了测试准备时间，降低了测试效率；且部分固定装置采用螺栓手动夹紧方式，夹紧力度难以精准控制，夹紧过松易导致测试过程中锚杆锚索打滑，夹紧过紧则可能损伤锚杆锚索表面，影响其力学性能，进而导致测试结果失真；其次，传统固定装置的固定位置多为不可调设计，无法灵活调整待测试锚杆锚索的长度与拉拔测试设备的位置，增加了测试操作的复杂性，所以，本领域技术人员提供了一种锚杆锚索拉拔性能测试用固定支撑架，以解决上述背景技术中提出的问题
1.使用中，首先，将固定块嵌入支撑架一侧开设的嵌槽内，当固定块两侧开设的通孔与支撑架两侧对应的圆孔对齐时，将螺钉穿过通孔并拧入圆孔内，通过螺钉与通孔、圆孔的螺纹连接，将固定块稳固固定在支撑架上，操作灵活便捷；同时，支撑架顶部固定的顶板可增强支撑架的整体结构稳定性，避免测试过程中支撑架因受力发生变形，底座则为整个装置提供稳固的支撑基础，防止装置在测试过程中倾倒；
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Figure CN224906451U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixed support frame technology, specifically a fixed support frame for testing the pull-out performance of anchor bolts and anchor cables. Background Technology
[0002] Anchor bolts and anchor cables are key components used in construction, mining, and tunnel engineering to reinforce soil and rock masses and ensure structural stability. While their functions are similar, their structures differ slightly: anchor bolts are typically made of a single high-strength steel bar, steel pipe, or fiberglass, with one end fixed to the soil or rock mass by an anchoring agent, and the other end extending beyond the surface and locked in place with nuts, washers, and other components. They transmit internal stress through the tensile strength of the bolt itself, preventing collapse or deformation of the soil or rock mass. Anchor cables, on the other hand, consist of multiple high-strength steel wires or strands, which are bundled and tensioned... Fixed in deep, stable rock and soil masses by anchoring devices, anchor bolts and anchor cables can withstand greater tensile forces and are suitable for scenarios with poor rock and soil stability or high stress. Their core function is to connect the loose portion of the rock and soil mass to the deep, stable portion by actively applying prestress or passively bearing tensile forces, thus constraining the displacement and deformation of the rock and soil mass. They are widely used in tunnel excavation, underground mine support, slope reinforcement, and high-rise building foundation pit support, providing assurance for construction safety and long-term structural stability. Therefore, the pull-out performance of anchor bolts and anchor cables directly affects the engineering... The safety and reliability of anchor bolts and cables are paramount, so pull-out performance testing is essential before they can be put into use. However, traditional anchor bolt and cable pull-out performance testing fixing methods have many drawbacks, seriously affecting the accuracy of test results and the safety of the testing process: First, traditional fixing devices are mostly dedicated structures that can only be adapted to anchor bolts and cables of a single diameter. When testing anchor bolts and cables of different diameters, the entire fixing device needs to be replaced, which not only increases equipment costs but also prolongs test preparation time and reduces test efficiency. Moreover, some fixing devices use manual bolt clamping, making it difficult to accurately control the clamping force. If the clamping is too loose, the anchor bolt or cable may slip during the test, while if the clamping is too tight, it may damage the surface of the anchor bolt or cable, affecting its mechanical properties and thus distorting the test results. Second, the fixing position of traditional fixing devices is mostly non-adjustable, making it impossible to flexibly adjust the length of the anchor bolt or cable under test and the position of the pull-out testing equipment, increasing the complexity of the test operation. Therefore, those skilled in the art provide a fixing support frame for anchor bolt and cable pull-out performance testing to solve the problems mentioned in the background art. Utility Model Content
[0003] The purpose of this invention is to provide a fixed support frame for testing the pull-out performance of anchor bolts and cables, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: A fixed support frame for testing the pull-out performance of anchor bolts and cables includes a base, an adjustment structure, and a clamping structure. The support frame is fixedly connected to the top of the base. A groove is opened on one side of the support frame, and a fixing block is embedded in the groove. An adjustment structure is fixedly connected to the fixing block. Two clamping structures are symmetrically fixedly connected to the adjustment structure.
[0005] As a further embodiment of this utility model: the adjustment structure includes a first motor, a bidirectional lead screw, a driving gear, a driven gear, an adjustment frame, a slide groove, and a connecting block. The power output shaft of the first motor is fixedly connected to a round shaft, and the driving gear is fixedly connected to the side of the round shaft away from the first motor.
[0006] As a further embodiment of this utility model: a driven gear is meshed with one side of the driving gear, and a bidirectional lead screw is fixedly connected to the driven gear. The two sides of the bidirectional lead screw pass through both sides of the fixed block and are threadedly connected to an adjustment bracket.
[0007] As a further improvement of this utility model: the bidirectional lead screw is rotatably connected to the fixed block, and the adjusting frame has sliding grooves on both sides, with a connecting block fixedly connected to the side of the adjusting frame away from the driven gear.
[0008] As a further embodiment of this utility model: the clamping structure includes a clamping block, a connecting frame, a cylinder, a clamping block and a rubber pad. The clamping block is fixedly connected to the connecting frame on all four sides, and the connecting frame is fixedly connected to the cylinder on the other side. The extension and retraction ends of the cylinders are fixedly connected to the clamping blocks, and the inner side of the clamping blocks is fixedly connected to the rubber pads. A connecting groove is provided in the middle of one side of the clamping block.
[0009] As a further improvement of this utility model: a top plate is fixedly connected to the top of the support frame, and two round holes are opened on both sides of the support frame.
[0010] As a further embodiment of this utility model: a cabinet door is hinged to one edge of the fixing block, and two through holes are opened on both sides of the fixing block. Screws corresponding to the round holes are threaded into the through holes, and the screws are threaded to the round holes and the through holes.
[0011] As a further embodiment of this utility model: both sides of the fixing block are fixedly connected to a fixing frame, and both sides of the fixing frame are fixedly connected to a slide frame corresponding to the slide groove on the adjustment structure, and the slide frame and the slide groove are slidably connected.
[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. In use, first, embed the fixing block into the groove opened on one side of the support frame. When the through holes opened on both sides of the fixing block are aligned with the corresponding round holes on both sides of the support frame, pass the screw through the through hole and screw it into the round hole. Through the threaded connection between the screw and the through hole and the round hole, the fixing block is firmly fixed on the support frame. The operation is flexible and convenient. At the same time, the top plate fixed on the top of the support frame can enhance the overall structural stability of the support frame and prevent the support frame from deforming due to force during the test. The base provides a stable support foundation for the entire device and prevents the device from tipping over during the test. 2. After fixing the fixing block, adjust the distance between the two clamping structures according to the diameter of the anchor rod and cable to be tested. Turn on the first motor. The power output shaft of the first motor drives the round shaft to rotate, and the round shaft drives the drive gear to rotate. Since the drive gear and the driven gear are meshed, the driven gear rotates synchronously with the drive gear, and the double-acting screw fixedly connected to the driven gear also rotates. Adjusting frames are threaded on both sides of the double-acting screw, and the sliding grooves on both sides of the adjusting frames are slidably connected to the slides on the inner walls of the fixing frames fixed on both sides of the fixing block. Under the threaded transmission of the double-acting screw, the two adjusting frames will slide towards or away from each other along the slides. The connecting block fixed on the side of the adjusting frame away from the driven gear will drive the clamping structure connected to it to move synchronously until the distance between the two clamping structures is adapted to the diameter of the anchor rod and cable to be tested, thus preparing for the subsequent clamping of the anchor rod and cable. 3. Next, the anchor bolt and anchor cable to be tested are passed through the connecting groove opened in the middle of one side of the clamping block in the clamping structure. Then, the clamping structure is activated to fix the anchor bolt and anchor cable. The cylinders on the connecting frames fixed on the four sides of the clamping block are activated. The telescopic end of the cylinder pushes the clamping block to move towards the anchor bolt and anchor cable. Since the four clamping blocks are distributed in a ring, clamping force is applied synchronously from all sides of the anchor bolt and anchor cable until the rubber pad fixed inside the clamping block is tightly attached to the surface of the anchor bolt and anchor cable. The rubber pad can not only increase the friction between the clamping block and the anchor bolt and anchor cable to prevent the anchor bolt and anchor cable from slipping during the test, but also avoid the clamping block from causing squeezing damage to the surface of the anchor bolt and anchor cable. At this time, the anchor bolt and anchor cable are firmly fixed between the clamping structures, so that the pull-out testing equipment can be connected to conduct pull-out performance testing. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of a fixed support frame used for testing the pull-out performance of anchor bolts and cables.
[0014] Figure 2 This is a schematic diagram of the side structure of a fixed support frame used for testing the pull-out performance of anchor bolts and cables.
[0015] Figure 3 This is a schematic diagram of the support frame structure in a fixed support frame used for testing the pull-out performance of anchor bolts and cables.
[0016] Figure 4This is a schematic diagram of the fixed block structure in a fixed support frame used for testing the pull-out performance of anchor bolts and cables.
[0017] Figure 5 This is a schematic diagram of the adjustment structure in a fixed support frame used for testing the pull-out performance of anchor bolts and cables.
[0018] Figure 6 This is a schematic diagram of the clamping structure in a fixed support frame used for testing the pull-out performance of anchor bolts and cables.
[0019] In the diagram: 1. Base; 2. Support frame; 3. Fixing block; 4. Top plate; 5. Adjustment structure; 51. First motor; 52. Two-way lead screw; 53. Driving gear; 54. Driven gear; 55. Adjustment frame; 56. Slide groove; 57. Connecting block; 6. Clamping structure; 61. Clamping block; 62. Connecting frame; 63. Cylinder; 64. Clamping block; 65. Rubber pad; 7. Fixing frame; 8. Groove; 9. Round hole; 10. Through hole; 11. Screw; 12. Cabinet door. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example
[0021] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6This embodiment provides a fixed support frame for testing the pull-out performance of anchor bolts and cables, including a base 1, an adjustment structure 5, and a clamping structure 6. A support frame 2 is fixedly connected to the top of the base 1. A groove 8 is provided on one side of the support frame 2, and a fixing block 3 is embedded in the groove 8. The adjustment structure 5 is fixedly connected to the fixing block 3, and two clamping structures 6 are symmetrically fixedly connected to the adjustment structure 5. A top plate 4 is fixedly connected to the top of the support frame 2, and two round holes 9 are provided on both sides of the support frame 2. A cabinet door 12 is hinged to one edge of the fixing block 3. Two through holes 10 are provided on both sides of the fixing block 3, and screws 11 corresponding to the round holes 9 are threaded into each through hole 10. The screws 11 are threaded to the round holes 9 and the through holes 10, thus embedding the fixing block 3 into one side of the support frame 2. When the through holes 10 on both sides of the fixed block 3 are aligned with the corresponding round holes 9 on both sides of the support frame 2, the screws 11 are passed through the through holes 10 and screwed into the round holes 9. The fixed block 3 is firmly fixed to the support frame 2 by the threaded connection between the screws 11 and the through holes 10 and the round holes 9, making the operation flexible and convenient. At the same time, the top plate 4 fixed on the top of the support frame 2 can enhance the overall structural stability of the support frame 2 and prevent the support frame 2 from deforming due to force during the test. The base 1 provides a stable support foundation for the entire device and prevents the device from tipping over during the test. The fixed blocks 3 are fixedly connected to the fixed frames 7 on both sides. The inner walls of the fixed frames 7 on both sides are fixedly connected to the slides corresponding to the slide grooves 56 on the adjustment structure 5, and the slides are slidably connected to the slide grooves 56. Example
[0022] Reference Figure 1-6This embodiment is based on the previous embodiment, but differs in that the adjusting structure 5 includes a first motor 51, a bidirectional lead screw 52, a driving gear 53, a driven gear 54, an adjusting frame 55, a sliding groove 56, and a connecting block 57. A round shaft is fixedly connected to the power output shaft of the first motor 51. A driving gear 53 is fixedly connected to the side of the round shaft away from the first motor 51. A driven gear 54 is meshed with one side of the driving gear 53. A bidirectional lead screw 52 is fixedly connected to the driven gear 54. The bidirectional lead screw 52 passes through both sides of the fixed block 3 and is threadedly connected to the adjusting frame 55. The bidirectional lead screw 52 is rotatably connected to the fixed block 3. Sliding grooves 56 are provided on both sides of the adjusting frame 55, with a sliding groove 56 on the side of the adjusting frame 55 away from the driven gear 54. A connecting block 57 is fixedly connected. After the fixing block 3 is fixed, the distance between the two clamping structures 6 is adjusted according to the diameter of the anchor rod and anchor cable to be tested by starting the adjusting structure 5. The first motor 51 is turned on, and the power output shaft of the first motor 51 drives the round shaft to rotate. The round shaft then drives the driving gear 53 to rotate. Since the driving gear 53 is meshed with the driven gear 54, the driven gear 54 rotates synchronously with the driving gear 53. The bidirectional lead screw 52 fixedly connected to the driven gear 54 also rotates accordingly. Adjusting frames 55 are threadedly connected to both sides of the bidirectional lead screw 52, and the sliding grooves 56 on both sides of the adjusting frame 55 are slidably connected to the sliding frame on the inner wall of the fixing frame 7 fixed on both sides of the fixing block 3. Under the threaded transmission of the bidirectional lead screw 52, the two adjusting frames... The adjusting frame 55 will slide in opposite directions along the slide. The connecting block 57 fixed on the side of the adjusting frame 55 away from the driven gear 54 will drive the clamping structure 6 connected to it to move synchronously until the distance between the two clamping structures 6 is adapted to the diameter of the anchor rod and anchor cable to be tested, thus preparing for the subsequent clamping of the anchor rod and anchor cable. The clamping structure 6 includes a clamping block 61, a connecting frame 62, a cylinder 63, a clamping block 64 and a rubber pad 65. The clamping block 61 is fixedly connected to the connecting frame 62 on all four sides, and the connecting frame 62 is fixedly connected to the cylinder 63 on the other side. The extension end of the cylinder 63 is fixedly connected to the clamping block 64, and the inner side of the clamping block 64 is fixedly connected to the rubber pad 65. A connecting groove is opened in the middle of one side of the clamping block 61, through which the anchor rod and anchor cable to be tested are passed. A connecting groove is opened in the middle of one side of the clamping block 61. Then, the clamping structure 6 is activated to fix the anchor rod and anchor cable. The cylinders 63 on the connecting frames 62 fixed on the four sides of the clamping block 61 are opened. The telescopic end of the cylinder 63 pushes the clamping block 64 to move towards the anchor rod and anchor cable. Since the four clamping blocks 64 are distributed in a ring, they will apply clamping force synchronously from all sides of the anchor rod and anchor cable until the rubber pad 65 fixed inside the clamping block 64 is tightly attached to the surface of the anchor rod and anchor cable. The rubber pad 65 can not only increase the friction between the clamping block 64 and the anchor rod and anchor cable to prevent the anchor rod and anchor cable from slipping during the test, but also avoid the clamping block 64 from causing squeezing damage to the surface of the anchor rod and anchor cable. At this time, the anchor rod and anchor cable are firmly fixed between the clamping structures 6, so that the pull-out test equipment can be connected to conduct pull-out performance test.
[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A fixed support frame for testing the pull-out performance of anchor bolts and cables, comprising a base (1), an adjustment structure (5), and a clamping structure (6), characterized in that, The base (1) is fixedly connected to a support frame (2) on the top. A groove (8) is provided on one side of the support frame (2). A fixing block (3) is embedded in the groove (8). An adjustment structure (5) is fixedly connected in the fixing block (3). Two clamping structures (6) are symmetrically fixedly connected on the adjustment structure (5). The adjustment structure (5) includes a first motor (51), a two-way lead screw (52), a driving gear (53), a driven gear (54), an adjustment frame (55), a slide groove (56), and a connecting block (57). The power output shaft of the first motor (51) is fixedly connected to a round shaft, and the driving gear (53) is fixedly connected to the side of the round shaft away from the first motor (51). The driving gear (53) is meshed with a driven gear (54) on one side, and a double-acting screw (52) is fixedly connected to the driven gear (54). The double-acting screw (52) passes through both sides of the fixed block (3) and is threadedly connected to an adjusting bracket (55). The bidirectional lead screw (52) is rotatably connected to the fixed block (3), and the adjustment frame (55) has a sliding groove (56) on both sides. The adjustment frame (55) is fixedly connected to a connecting block (57) on the side away from the driven gear (54). The clamping structure (6) includes a clamping block (61), a connecting frame (62), a cylinder (63), a clamping block (64), and a rubber pad (65). The clamping block (61) is fixedly connected to the connecting frame (62) on all four sides. The connecting frame (62) is fixedly connected to the cylinder (63) on the other side. The extension end of the cylinder (63) is fixedly connected to the clamping block (64). The inner side of the clamping block (64) is fixedly connected to the rubber pad (65). A connecting groove is provided in the middle of one side of the clamping block (61).
2. The fixed support frame for testing the pull-out performance of anchor bolts and cables according to claim 1, characterized in that, The top plate (4) is fixedly connected to the top of the support frame (2), and two round holes (9) are opened on both sides of the support frame (2).
3. A fixed support frame for testing the pull-out performance of anchor bolts and cables according to claim 1, characterized in that, A cabinet door (12) is hinged to one side edge of the fixing block (3). Two through holes (10) are opened on both sides of the fixing block (3). Screws (11) corresponding to the round hole (9) are threaded into the through holes (10), and the screws (11) are threaded to the round hole (9) and the through holes (10).
4. A fixed support frame for testing the pull-out performance of anchor bolts and cables according to claim 1, characterized in that, The fixing block (3) is fixedly connected to a fixing frame (7) on both sides. The inner walls of both sides of the fixing frame (7) are fixedly connected to a slide corresponding to the slide groove (56) on the adjustment structure (5), and the slide is slidably connected to the slide groove (56).