Auxiliary tool facilitating threading of anchorage device
By setting conical threading holes and clamping rings on the anchor body, and utilizing the design of magnetic connection and positioning groove, the problem of aligning multiple steel strands is solved, and a fast and convenient threading process is achieved.
Patent Information
- Application Number
- CN202520321307.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-26
AI Technical Summary
In existing technologies, it is difficult to align multiple steel strands with the holes of the anchor at the same time, which makes the threading operation difficult.
Design an auxiliary tooling to facilitate the threading of anchors. The anchor body is equipped with a tapered threading hole and a clamping ring. The clamping ring is made of elastic material and achieves quick alignment and clamping through the magnetic connection between the upper and lower rings. Combined with the positioning groove, the positioning accuracy is improved.
It enables rapid alignment and threading of multiple steel strands, simplifies the operation process, improves threading efficiency, and facilitates subsequent disassembly.
Smart Images

Figure CN223922509U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of anchorages, and specifically to an auxiliary tooling that facilitates the threading of anchorages. Background Technology
[0002] Anchorages are permanent anchoring devices used in prestressed concrete. They are anchoring tools used in post-tensioned structures or components to maintain the tension of prestressing tendons and transfer it into the concrete. They are also called prestressed anchorages.
[0003] When in use, the anchor is used with clamps to divide and fix the steel strands. In use, multiple steel strands need to be passed through the holes on the anchor, then the anchor is installed on the anchor plate, and finally concrete is poured to fix it.
[0004] Currently, the process of threading anchors onto multiple steel strands typically requires workers to simultaneously align all the strands with the holes before pushing the anchor onto the strands and onto the anchor plate. However, due to the high rigidity of the steel strands, it is difficult to bend and deform them manually, making it extremely challenging to align multiple strands with multiple holes simultaneously, a task rarely accomplished by workers in one go. Utility Model Content
[0005] To address the aforementioned problem of the difficulty in simultaneously aligning multiple steel strands with holes, this invention proposes an auxiliary tooling for facilitating the threading of anchor wires. The tooling includes an anchor body with several tapered threading holes. One of the threading holes is located at the center of the anchor body, while the remaining threading holes are evenly distributed along the circumference of the anchor body. An installation ring is fastened to the anchor body, and a locking ring is provided on the installation ring corresponding to the circumferentially arranged threading hole. The locking ring is open and made of an elastic material.
[0006] A further feature of this invention is that the mounting ring includes an upper ring and a lower ring, both of which are semi-circular, forming a circular ring together, and both are magnetically connected to the anchor body.
[0007] A further feature of this invention is that both the upper ring and the lower ring include an arc-shaped positioning plate and an arc-shaped limiting plate, the positioning plate and the limiting plate are arranged perpendicularly, the clamping ring is arranged on the positioning plate, and a magnetic strip is embedded on the inner surface of the limiting plate.
[0008] A further feature of this invention is that both the upper ring and the lower ring include an arc-shaped positioning plate and an arc-shaped limiting plate. The positioning plate is perpendicular to the limiting plate. The clamping ring is disposed on the positioning plate. A magnetic strip is installed on the inner surface of the limiting plate. A positioning groove is provided on the side wall of the anchor body corresponding to the openings of the two magnetic strips.
[0009] A further feature of this invention is that the length of each of the clamping rings is not the same.
[0010] The beneficial effects of this utility model are as follows:
[0011] 1. By opening an opening in the clamping ring, the steel strands can be clamped into the clamping ring one by one during threading, thus ensuring that each steel wire is aligned with a threading hole. Pushing the anchor body can achieve the purpose of threading, making the alignment of multiple steel strands with the threading holes simpler. Furthermore, since the upper and lower rings are magnetically connected, the upper and lower rings can be easily removed visually after the steel strands are threaded into the threading holes.
[0012] 2. By opening the positioning groove, the positioning of the upper and lower rings can be made more convenient, and the clamping ring can be aligned with the thread hole more quickly. Attached Figure Description
[0013] Figure 1 A schematic diagram of the structure of this utility model is shown.
[0014] Figure 2 A schematic diagram of the lower ring structure of Embodiment 1 is shown.
[0015] Figure 3 A schematic diagram of the anchor body of Embodiment 1 is shown.
[0016] Figure 4 A schematic diagram of the lower ring structure in Embodiment 2 is shown.
[0017] Figure 5 A schematic diagram of the anchor body of Embodiment 2 is shown.
[0018] Figure 6 The front view of Embodiment 2 is shown.
[0019] Figure 7 A cross-sectional view along the BB direction is shown.
[0020] Reference numerals in the attached drawings: 1. Anchor body; 11. Threading hole; 12. Positioning groove; 2. Mounting ring; 21. Clamping ring; 22. Upper ring; 23. Lower ring; 24. Magnetic strip. Detailed Implementation
[0021] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.
[0022] Example 1
[0023] This utility model proposes an auxiliary tooling for facilitating the threading of anchors, including an anchor body 1, on which nine conical threading holes 11 are provided. One threading hole 11 is located in the middle of the anchor body 1, and the other eight threading holes 11 are arranged in a circle at equal angles along the circumference of the anchor body 1.
[0024] An anchor body 1 is fitted with an installation ring 2, which is fastened to the smaller diameter end of the threading hole 11, i.e., the entry end of the steel strand during threading. Eight clamping rings 21 are fixedly connected to the eight circumferentially arranged threading holes 11 on the installation ring 2. The diameter of the clamping rings 21 is the same as that of the steel strand. An opening is provided on the side wall of the clamping ring 21, meaning the cross-section of the clamping ring 21 is an arc shape larger than a semicircle but smaller than a full circle. The clamping rings 21 are made of elastic plastic material. The steel strand can be squeezed into the clamping ring 21 through the opening and clamped by the clamping ring 21.
[0025] The mounting ring 2 includes an upper ring 22 and a lower ring 23, both of which are semi-circular and form a circular ring. Both the upper ring 22 and the lower ring 23 include an arc-shaped positioning plate and an arc-shaped limiting plate. The positioning plate contacts the end face of the anchor body 1, and the limiting plate contacts the side wall of the anchor body 1. The positioning plate is perpendicular to the limiting plate. Four locking rings 21 are fixedly connected to each of the upper ring 22 and the lower ring 23.
[0026] An arc-shaped magnetic strip 24 is fixedly connected to the positioning plate. The magnetic strip 24 is embedded in the positioning plate, and the inner surface of the magnetic strip 24 and the inner surface of the positioning plate are located on the same arc surface. The positioning plate is magnetically connected to the anchor body 1 through the magnetic strip 24.
[0027] The eight clamping rings 21 are of different lengths, increasing in a clockwise direction with the first ring being the shortest and the last the longest. When threading the wire, the steel strand is first inserted into the longest clamping ring 21, and then inserted sequentially in descending order of height. This prevents unthreaded steel strands from interfering with clamping rings 21 that do not yet have steel strands threaded into them. Furthermore, since the steel strands are arranged in a specific pattern corresponding to the positions of the threading holes 11, each steel strand is positioned corresponding to a clamping ring. Therefore, unthreaded steel strands will not interfere with clamping rings that already have steel strands threaded into them.
[0028] It should be noted that this application only uses the nine-hole anchor body 1 as an example for distance description. In actual construction, there are also anchor bodies 1 with other numbers of holes such as three holes and seven holes. Therefore, for anchor bodies 1 with different numbers of holes, it is only necessary to set different numbers of clamping holes to meet the requirements.
[0029] Threading process:
[0030] First, attach the upper ring 22 and the lower ring 23 to the anchor body 1 using the magnetic strip 24. Then, rotate the upper ring 22 and the lower ring 23 simultaneously so that any one of the clamping rings 21 is aligned with any one of the wire-passing holes 11. This ensures that each clamping ring 21 is aligned with a wire-passing hole 11. Then, according to the height of the clamping rings 21, squeeze the steel strand into the corresponding clamping rings 21 in sequence. At this time, the steel strand is inserted into the clamping rings 21 but not into the wire-passing holes 11.
[0031] Secondly, since the clamping ring 21 is set to correspond to the threading hole 11, it is only necessary to push the anchor body 1 to move along the direction of the steel strand to make the steel strand accurately threaded into the threading hole 11 to complete the threading process.
[0032] Finally, after threading the steel strand into the threading hole 11, pull out the upper ring 22 and the lower ring 23 respectively. During the pulling process, the steel strand will disengage from the clamping ring 21 through the opening.
[0033] It should be noted that the opening on the clamping ring 21 should be oriented in a direction that will not affect the insertion and extrusion of the steel strand.
[0034] Example 2
[0035] The difference between this embodiment and embodiment 1 is that a magnetic strip 24 is fixedly connected to the inner surface of the positioning plate, and a positioning groove 12 is opened on the side wall of the anchor body 1 corresponding to the magnetic strip 24. During installation, the magnetic strip 24 can be directly embedded into the positioning groove 12. This eliminates the need to manually rotate the upper ring 22 and the lower ring 23 to align the clamping ring 21 with the wire hole 11. At the same time, it can also limit the rotation of the mounting ring 2, which can more quickly align the clamping ring 21 with the positioning hole.
[0036] In summary, this utility model, by creating an opening in the clamping ring 21, allows each steel strand to be individually clamped into the clamping ring 21 during threading, ensuring that each steel wire is aligned with a threading hole 11. Pushing the anchor body 1 then achieves the threading purpose, simplifying the alignment of multiple steel strands with the threading holes 11. Furthermore, since the upper ring 22 and lower ring 23 are magnetically connected, they can be easily disassembled visually after the steel strand is threaded into the threading hole 11. The positioning groove 12 further facilitates the positioning of the upper ring 22 and lower ring 23, enabling the clamping ring 21 to align with the threading hole 11 more quickly.
[0037] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
[0038] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0039] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0040] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.
[0041] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. An auxiliary tooling for facilitating the threading of anchor bolts, comprising an anchor bolt body (1), wherein the anchor bolt body (1) has a plurality of tapered threading holes (11), one of the threading holes (11) being located at the center of the anchor bolt body (1), and the remaining threading holes (11) being evenly distributed along the circumference of the anchor bolt body (1), characterized in that: An installation ring (2) is fastened on the anchor body (1). A clamping ring (21) is provided on the installation ring (2) corresponding to the circumferentially arranged wire hole (11). The clamping ring (21) is open and is made of elastic material.
2. The auxiliary tooling for facilitating anchor threading according to claim 1, characterized in that: The mounting ring (2) includes an upper ring (22) and a lower ring (23). Both the upper ring (22) and the lower ring (23) are semi-circular. The upper ring (22) and the lower ring (23) together form a circular ring. Both the upper ring (22) and the lower ring (23) are magnetically connected to the anchor body (1).
3. The auxiliary tooling for facilitating anchor threading according to claim 2, characterized in that: Both the upper ring (22) and the lower ring (23) include an arc-shaped positioning plate and an arc-shaped limiting plate. The positioning plate is perpendicular to the limiting plate. The clamping ring (21) is disposed on the positioning plate. A magnetic strip (24) is embedded on the inner surface of the limiting plate.
4. The auxiliary tooling for facilitating anchor threading according to claim 2, characterized in that: Both the upper ring (22) and the lower ring (23) include an arc-shaped positioning plate and an arc-shaped limiting plate. The positioning plate is set perpendicular to the limiting plate. The clamping ring (21) is set on the positioning plate. Magnetic strips (24) are installed on the inner surface of the limiting plate. The side wall of the anchor body (1) has a positioning groove (12) corresponding to the two magnetic strips (24).
5. The auxiliary tooling for facilitating anchor threading according to claim 1, characterized in that: The length of each of the clamping rings (21) is set differently.