Anchorage device with mounting mechanism
Patent Information
- Application Number
- CN202522527455.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-10-13
- Estimated Expiration
- 2035-11-28
AI Technical Summary
[0004]本实用新型的目的在于提供一种具有安装机构的锚具，以解决上述背景技术中提出的锚具难以灵活适配多种直径钢绞线，导致兼容性差、使用受限；且在锚固过程中，缺乏有效的锁止机制，在受力或振动环境下钢绞线的固定容易松动，进而破坏整个锚具系统的稳定性，无法满足工程中对锚具高可靠性和灵活性的要求的问题
1.通过双向螺杆与定位环、锁紧套板螺纹连接，旋转双向螺杆可驱动两组锁紧套板相向或反向移动，实现对若干钢绞线的夹紧或松开；套筒末端锁止孔与双向螺杆末端定位槽、锁止环及弹性锁销配合，当双向螺杆旋转至锁紧位置时，将锁止环套入使定位块嵌入定位槽，弹性锁销卡入锁止孔，可防止双向螺杆松动回转，确保锚具锁紧状态稳定，提升锚固可靠性；
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Figure CN224849382U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anchor technology, specifically to an anchor with an installation mechanism. Background Technology
[0002] Anchors are core mechanical components widely used in the field of prestressed engineering. They are mainly used to fix prestressed tendons, such as steel strands and wire bundles, and to transfer the tensile force borne by the prestressed tendons to the main structure such as concrete and steel structures, thereby achieving prestressing reinforcement of the structure and improving the load-bearing capacity, crack resistance and durability of the project.
[0003] However, existing anchorages still have certain problems: Existing anchors are difficult to adapt flexibly to steel strands of various diameters, resulting in poor compatibility and limited use. Furthermore, during the anchoring process, there is a lack of effective locking mechanisms, and the steel strands are easily loosened under stress or vibration, which in turn damages the stability of the entire anchor system and fails to meet the requirements of high reliability and flexibility for anchors in engineering projects. Therefore, we propose an anchor with an installation mechanism to solve the problems mentioned above. Utility Model Content
[0004] The purpose of this utility model is to provide an anchor with an installation mechanism to solve the problems mentioned in the background art, which are that the anchor is difficult to flexibly adapt to steel strands of various diameters, resulting in poor compatibility and limited use; and that during the anchoring process, there is a lack of an effective locking mechanism, and the steel strand is easy to loosen under stress or vibration, thereby destroying the stability of the entire anchor system and failing to meet the requirements of high reliability and flexibility of anchors in engineering.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an anchor with an installation mechanism, comprising an installation plate and a positioning ring. The bottom of the installation plate is integrally provided with a positioning ring, and a sleeve is welded to the outer surface of the positioning ring. Both the positioning ring and the sleeve are threadedly connected to a bidirectional screw rod through their middle portions. Two sets of locking sleeve plates are symmetrically arranged in the middle portion of the positioning ring. A first slider is welded to one end of each locking sleeve plate, and the first slider is threadedly connected to the bidirectional screw rod. A locking hole is provided at the end of the sleeve. Three sets of positioning grooves are circumferentially opened at the end of the bidirectional screw rod. A locking ring is sleeved on the end of the bidirectional screw rod. Three sets of positioning blocks corresponding to the positioning grooves are fixed on the inner side of the locking ring. An elastic locking pin adapted to the locking hole is fixed on the inner side of each positioning block.
[0006] Using the above technical solution, the bidirectional screw is threadedly connected to the positioning ring and locking sleeve. Rotating the bidirectional screw can drive the two sets of locking sleeves to move in opposite directions, thereby clamping or loosening several steel strands. The locking hole at the end of the sleeve cooperates with the positioning groove, locking ring and elastic locking pin at the end of the bidirectional screw. When the bidirectional screw rotates to the locking position, the locking ring is put on so that the positioning block is embedded in the positioning groove, and the elastic locking pin is engaged in the locking hole, which can prevent the bidirectional screw from loosening and rotating, ensuring the stability of the anchor's locking state and improving the reliability of the anchoring.
[0007] Preferably, the two sets of locking sleeves are spliced together to form a conical structure, and the opening at the end of the locking sleeve away from the mounting plate is smaller.
[0008] Using the above technical solution, two sets of locking sleeves are spliced into a conical structure with a small opening. When the bidirectional screw drives them to move in opposite directions, the conical structure can gradually tighten, using the inclined extrusion effect to tightly wrap the steel strand, which can enhance the clamping force on the steel strand and ensure stable anchoring. At the same time, the conical opening can adapt to steel strands of different diameters, improving the compatibility and flexibility of the device.
[0009] Preferably, the locking holes are provided in three sets in a ring along the end of the sleeve, and the elastic locking pins are provided in three sets in a ring along the inner side of the locking ring, and the elastic locking pins are engaged with the locking holes in a one-to-one correspondence.
[0010] By adopting the above technical solution, three sets of locking holes and elastic locking pins are set at the end of the sleeve and the inner side of the locking ring. When the bidirectional screw rotates to the target position, the locking ring can make the elastic locking pin accurately engage with the locking hole through the sliding connection between the positioning block and the positioning groove. Mechanical locking is achieved by using elastic deformation, which can effectively prevent the bidirectional screw from rotating unexpectedly and ensure the stability of the locking sleeve position, thereby greatly improving the reliability and anti-loosening ability of the anchor after installation.
[0011] Preferably, the inner sides of both sets of locking sleeves are provided with several rings of anti-slip texture.
[0012] By adopting the above technical solution, the several anti-slip grooves on the inner side of the locking sleeve can increase the roughness of the contact surface with the steel strand. When the locking sleeve clamps the steel strand, the static friction between the two is increased by utilizing the principle of friction mechanics, which effectively prevents the steel strand from sliding relative to the locking sleeve when under force, improves the stability and reliability of the anchorage, and ensures that the anchorage can still maintain a stable connection under complex working conditions.
[0013] Preferably, the mounting plate has mounting holes evenly distributed at its four corners, and an anchor body is welded to the top of the mounting plate. The anchor body has four sets of anchor holes in its middle, and each of the four sets of anchor holes has a set of wedge blocks embedded inside.
[0014] Using the above technical solution, the mounting holes at the four corners of the mounting plate are used for fixed connection with the engineering structure to provide stable support; the anchor hole in the middle of the anchor body cooperates with the wedge block assembly, and the steel strands are anchored in the anchor hole through the mechanical interlocking action of the wedge block assembly, thereby achieving reliable anchoring, preventing the steel strands from slipping, and ensuring the stability of the mechanical properties of the prestressed system.
[0015] Preferably, the wedge block assembly adopts a three-piece structure, and after splicing, it forms a conical structure.
[0016] Using the above technical solution, the three wedge blocks are spliced into a conical structure. When subjected to external force, the three wedge blocks press against each other and slide along the conical surface. The axial force is converted into radial clamping force by utilizing the angle of the conical surface. It can adapt to anchoring objects of different diameters and achieve reliable anchoring through mechanical interlocking. At the same time, the three-piece redundant design can avoid overall anchoring failure caused by the failure of a single piece.
[0017] Preferably, a limiting shaft is fixed on the inner side of the positioning ring and on one side parallel to the bidirectional screw, and a second slider that is slidably connected to the limiting shaft is welded to the other end of the locking sleeve.
[0018] By adopting the above technical solution, the other end of the locking sleeve is slidably connected to the limiting shaft through the second slider. Under the drive of the bidirectional screw, the movement of the locking sleeve can be made more stable in conjunction with the limiting shaft, thereby further increasing the reliability of the limiting clamping process.
[0019] Compared with the prior art, the beneficial effects of this utility model are: 1. The bidirectional screw is threadedly connected to the positioning ring and locking sleeve. Rotating the bidirectional screw can drive the two sets of locking sleeves to move in opposite directions, thereby clamping or loosening several steel strands. The locking hole at the end of the sleeve cooperates with the positioning groove, locking ring and elastic locking pin at the end of the bidirectional screw. When the bidirectional screw rotates to the locking position, the locking ring is put on so that the positioning block is embedded in the positioning groove and the elastic locking pin is engaged in the locking hole. This can prevent the bidirectional screw from loosening and rotating, ensure the stability of the anchor locking state and improve the anchoring reliability. 2. By setting three sets of locking holes and elastic locking pins at the end of the sleeve and the inner side of the locking ring, when the bidirectional screw rotates to the target position, the locking ring can make the elastic locking pin accurately engage in the locking hole through the sliding connection between the positioning block and the positioning groove. Mechanical locking is achieved by using elastic deformation, which can effectively prevent the bidirectional screw from rotating unexpectedly and ensure the stability of the locking sleeve position, thereby greatly improving the reliability and anti-loosening ability of the anchor after installation. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the external structure of this utility model from the front view; Figure 2 This is a schematic diagram of the anchor wedge block structure of this utility model; Figure 3This is a schematic diagram of the locking sleeve adjustment structure of this utility model; Figure 4 This is a schematic diagram of the bidirectional screw locking structure of this utility model.
[0021] In the diagram: 1. Mounting plate; 2. Mounting hole; 3. Anchor body; 4. Anchor hole; 5. Wedge block assembly; 6. Positioning ring; 7. Sleeve; 8. Double-acting screw; 9. Locking sleeve; 10. First slider; 11. Limiting shaft; 12. Second slider; 13. Locking hole; 14. Positioning groove; 15. Locking ring; 16. Positioning block; 17. Elastic locking pin; 18. Anti-slip texture. Detailed Implementation
[0022] 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.
[0023] Example 1 Please see Figure 1 , Figure 3 , Figure 4 This utility model provides a technical solution: An anchor with an installation mechanism includes an installation plate 1 and a positioning ring 6. The positioning ring 6 is integrally provided at the bottom of the installation plate 1. A sleeve 7 is welded to the outer surface of the positioning ring 6. A bidirectional screw 8 is threaded through and connected to the middle of both the positioning ring 6 and the sleeve 7. Two sets of locking sleeves 9 are symmetrically arranged in the middle of the positioning ring 6. A first slider 10 is welded to one end of the locking sleeve 9, and the first slider 10 is threaded to the bidirectional screw 8. A locking hole 13 is opened at the end of the sleeve 7. Three sets of positioning grooves 14 are opened in a ring at the end of the bidirectional screw 8. A locking ring 15 is sleeved at the end of the bidirectional screw 8. Three sets of positioning blocks 16 corresponding to the positioning grooves 14 are fixed on the inner side of the locking ring 15. An elastic locking pin 17 adapted to the locking hole 13 is fixed on the inner side of the positioning block 16. The two sets of locking sleeves 9 are spliced to form a conical structure, and the opening of the locking sleeve 9 away from the installation plate 1 is smaller. Three sets of locking holes 13 are circumferentially formed along the end of the sleeve 7, and three sets of elastic locking pins 17 are circumferentially formed along the inner side of the locking ring 15, with the elastic locking pins 17 corresponding to and engaging with the locking holes 13. Several anti-slip grooves 18 are circumferentially formed on the inner side of both sets of locking sleeve plates 9. A limiting shaft 11 is fixed to the inner side of the positioning ring 6 and parallel to the bidirectional screw 8, and a second slider 12, slidably connected to the limiting shaft 11, is welded to the other end of the locking sleeve plate 9.
[0024] The positioning ring 6 integrated into the bottom of the mounting plate 1 serves as the basic positioning structure, and the sleeve 7 welded to its outer surface provides installation support for the bidirectional screw 8. The bidirectional screw 8 passes through the middle of the positioning ring 6 and the sleeve 7 and is threadedly connected to them. When the bidirectional screw 8 is rotated, the two sets of locking sleeves 9, which are threaded to the bidirectional screw 8 and have a first slider 10 welded to one end, will cause the first slider 10 to move towards or away from each other due to the different directions of the threads of the bidirectional screw 8. After splicing, they form a conical structure with two sets of locking sleeves 9 having a smaller opening at the end away from the mounting plate 1. This movement can achieve locking of steel strands of different sizes, forming a reliable clamping force on the steel strands and ensuring stable anchoring. At the same time, the conical opening can adapt to steel strands of different diameters, improving the compatibility and flexibility of the device. Several anti-slip grooves 18 are formed on the inner side of the locking sleeves 9, which can... To increase the friction between the sleeve 7 and the locked steel strand and prevent slippage, the three sets of locking holes 13 at the end of the sleeve 7 cooperate with the three sets of positioning grooves 14 annularly opened at the end of the bidirectional screw 8. The locking ring 15 sleeved at the end of the bidirectional screw 8 has three sets of positioning blocks 16 fixed inside, corresponding to the positioning grooves 14, and elastic locking pins 17 fixed inside the positioning blocks 16 that are adapted to the locking holes 13. When the bidirectional screw 8 rotates to the appropriate position, the locking ring 15 is put on, so that the elastic locking pins 17 are engaged in the locking holes 13 and the positioning blocks 16 are engaged in the positioning grooves 14, thereby locking the bidirectional screw 8, preventing it from loosening, ensuring the stable locking effect of the locking sleeve 9, and improving the anchoring reliability.
[0025] Example 2 Please see Figure 2 This utility model provides a technical solution: Mounting holes 2 are evenly distributed at the four corners of the mounting plate 1. An anchor body 3 is welded to the top of the mounting plate 1. Four sets of anchor holes 4 are formed in the middle of the anchor body 3. Wedge blocks 5 are embedded inside the four sets of anchor holes 4. The wedge blocks 5 adopt a three-piece structure and form a conical structure after splicing.
[0026] The mounting plate 1 has mounting holes 2 evenly spaced at its four corners, providing standardized connection interfaces through the hole structure. Fasteners such as bolts pass through the mounting holes 2 to achieve a rigid connection with the external engineering structure, ensuring that the entire anchor system is firmly fixed to the foundation structure and preventing connection failure caused by displacement or vibration. The four sets of anchor holes 4 in the middle of the anchor body 3 provide embedding channels for prestressing tendons such as steel strands. The three-piece wedge block group 5 embedded inside forms a conical structure by splicing. When the steel strand passes through the anchor hole 4 and is under tension, the three wedge block group 5 are squeezed against each other along the conical surface under the action of axial tension. The axial force is converted into radial clamping force by the inclined plane self-locking principle, thereby achieving reliable anchoring of the steel strand. This design can adapt to steel strands of different diameters and ensure the stability of prestress transmission through mechanical interlocking, preventing the steel strand from slipping.
[0027] Working principle: For anchors with installation mechanisms, during installation, bolts and other fasteners are first passed through the evenly spaced installation holes 2 at the four corners of the installation plate 1 to rigidly connect and securely fix the entire anchor system to the external engineering structure. Next, the steel strand is threaded into the four sets of anchor holes 4 in the middle of the anchor body 3. Rotating the bidirectional screw 8, which passes through the positioning ring 6 and the middle of the sleeve 7 and is threaded to them, causes the two sets of locking sleeves 9, threaded to the bidirectional screw 8 and welded to one end with a first slider 10, to move towards each other. The locking sleeves 9, forming a conical structure, gradually approach the steel strand, utilizing the several rings of anti-slip grooves 18 on their inner sides to increase friction with the steel strand, thus protecting the steel strand. The stranded wire is initially clamped; at this time, the three-piece wedge block group 5 in the anchor hole 4 is squeezed against each other along the conical surface under the action of the axial tension of the steel strand, and the axial force is converted into radial clamping force through the inclined plane self-locking principle, which further reliably anchors the steel strand; when the bidirectional screw 8 is rotated to the appropriate position, the locking ring 15 is put on the end of the bidirectional screw 8, so that the positioning block 16 fixed inside the locking ring 15 is inserted into the positioning groove 14 opened in the ring at the end of the bidirectional screw 8, and at the same time, the elastic locking pin 17 fixed inside the positioning block 16 is inserted into the locking hole 13 opened at the end of the sleeve 7, thereby locking the bidirectional screw 8, ensuring the stable locking effect of the locking sleeve 9, and completing the entire anchor installation process.
[0028] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An anchor with an installation mechanism, comprising an installation plate (1) and a positioning ring (6), characterized in that: The bottom of the mounting plate (1) is integrally provided with a positioning ring (6). A sleeve (7) is welded to the outer surface of the positioning ring (6). The middle of the positioning ring (6) and the sleeve (7) are both threadedly connected to a bidirectional screw (8). Two sets of locking sleeves (9) are symmetrically arranged in the middle of the positioning ring (6). A first slider (10) is welded to one end of the locking sleeve (9), and the first slider (10) is threadedly connected to the bidirectional screw (8). A locking hole (13) is opened at the end of the sleeve (7). Three sets of positioning grooves (14) are opened in a ring at the end of the bidirectional screw (8). A locking ring (15) is sleeved at the end of the bidirectional screw (8). Three sets of positioning blocks (16) corresponding to the positioning grooves (14) are fixed on the inner side of the locking ring (15). An elastic locking pin (17) adapted to the locking hole (13) is fixed on the inner side of the positioning block (16).
2. An anchor with an installation mechanism according to claim 1, characterized in that: The two sets of locking sleeves (9) are spliced together to form a conical structure, and the opening at the end of the locking sleeve (9) away from the mounting plate (1) is smaller.
3. An anchor with an installation mechanism according to claim 1, characterized in that: The locking holes (13) are provided in three sets in a ring along the end of the sleeve (7), and the elastic locking pins (17) are provided in three sets in a ring along the inner side of the locking ring (15), and the elastic locking pins (17) and the locking holes (13) are connected in a one-to-one engagement.
4. An anchor with an installation mechanism according to claim 1, characterized in that: Both sets of locking sleeves (9) have several rings of anti-slip texture (18) on their inner sides.
5. An anchor with an installation mechanism according to claim 1, characterized in that: The mounting plate (1) has mounting holes (2) evenly distributed at its four corners. An anchor body (3) is welded to the top of the mounting plate (1). Four sets of anchor holes (4) are provided in the middle of the anchor body (3). A set of wedge blocks (5) is embedded inside each of the four sets of anchor holes (4).
6. An anchor with an installation mechanism according to claim 5, characterized in that: The wedge block group (5) adopts a three-piece structure and forms a conical structure after splicing.
7. An anchor with an installation mechanism according to claim 1, characterized in that: A limiting shaft (11) is fixed on the inner side of the positioning ring (6) and on one side parallel to the bidirectional screw (8), and a second slider (12) that is slidably connected to the limiting shaft (11) is welded to the other end of the locking sleeve (9).