Bridge prestressed steel strand threading guide

By designing a prestressed steel strand threading guide for bridges, the traction guidance and dual-position fixation of the steel strands are achieved by using strand fixing blocks and threaded adjustment structures. This solves the problems of weak fixation and insufficient adaptability in existing technologies, and improves the performance and safety of the steel strands.

CN224389644UActive Publication Date: 2026-06-23ZHEJIANG ROAD & BRIDGE CONSTR

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG ROAD & BRIDGE CONSTR
Filing Date
2025-08-26
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing bridge prestressed steel strand threading guides are inadequate in terms of fixing firmness and adaptability to steel strands of different thicknesses, which makes the steel strands prone to tangling and bouncing, affecting production efficiency and posing safety hazards.

Method used

A prestressed steel strand threading guide for bridges was designed, which adopts a structure including strand fixing block, strand opening, threaded groove, threaded adjustment rod, strand clamping plate, double-hole clamping plate and hexagonal positioning bolt block. The guide and dual-position fixation of the steel strand are achieved through threaded engagement and threaded adjustment.

Benefits of technology

It improves the fixing firmness of steel strands, ensures smooth wire laying, reduces steel strand waste and safety hazards, is suitable for steel strands of different thicknesses, and improves production efficiency.

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Abstract

This utility model relates to the technical field of bridge prestressed steel strand threading guides, specifically a bridge prestressed steel strand threading guide that is easy to use. It includes a strand fixing block, a strand passage located at the center of the right end of the fixing block, threaded grooves at both the top and bottom of the passage, a threaded adjusting rod located in the center of each threaded groove, each adjusting rod engaging with the groove, and a strand clamping plate on each adjusting rod. A double-hole clamping plate is located on the left side of the fixing block, with hexagonal positioning bolts at the front and rear of the clamping plate, each bolt engaging with the fixing block. A traction wire is located at the left end of the fixing block.
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Description

Technical Field

[0001] This utility model relates to the technical field of bridge prestressed steel strand threading guides, specifically a bridge prestressed steel strand threading guide. Background Technology

[0002] As is well known, in construction engineering, when making rebar cages, steel strands need to be spirally wound around the outside of the cage formed by the longitudinal reinforcing bars to improve its strength. Steel strands are usually produced in bulk bundles, requiring unbundling and release during use. During this release process, the steel strands are prone to tangling, leading to waste and hindering the smooth release operation, thus affecting the efficiency of rebar cage production. Furthermore, the steel strands are prone to bouncing during release, potentially causing injury to nearby personnel. Steel strands are widely used in construction engineering.

[0003] Although the prestressed steel strand threading guide with application number CN201721750039.0 can guide the steel strands, it has poor fixing firmness and is not convenient for fixing steel strands of different thicknesses. Therefore, we propose a prestressed steel strand threading guide for bridges to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an easy-to-use guide for threading prestressed steel strands in bridges.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a prestressed steel strand threading guide for bridges, comprising a strand fixing block, a strand passage provided at the middle of the right end of the strand fixing block, threaded grooves provided at the top and bottom ends of the strand passage, a threaded adjusting rod provided at the middle of each threaded groove, each threaded adjusting rod cooperating with the threaded groove, a strand clamping plate provided at each threaded adjusting rod, a double-hole clamping plate provided at the left side of the strand fixing block, hexagonal positioning bolt blocks provided at the front and rear of the double-hole clamping plate, each hexagonal positioning bolt block cooperating with the strand fixing block, and a traction wire provided at the left end of the strand fixing block.

[0008] Furthermore, an improvement of this utility model is that each strand clamping plate is provided with several positioning cones.

[0009] Furthermore, the improvements of this utility model include that the stranded wire fixing block, stranded wire opening, threaded groove, threaded adjusting rod, stranded wire clamping plate, double-hole clamping plate, hexagonal positioning bolt block and the edges of the traction wire are all rounded.

[0010] Based on the above, the improvement of this utility model is that the fit between each threaded adjusting rod and the threaded groove is a threaded fit.

[0011] Furthermore, an improvement of this utility model is that the fit between each hexagonal positioning bolt block and the stranded wire fixing block is a threaded fit.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a guide for threading prestressed steel strands in bridges, which has the following advantages:

[0014] This bridge prestressed steel strand threading guide, by setting up strand fixing blocks, strand openings, threaded grooves, threaded adjusting rods, strand clamping plates, double-hole clamping plates, hexagonal positioning bolt blocks, and traction lines, enables the prestressed steel strand threading guide to traction and guide the steel strands. It can fix the strands in two positions, resulting in better fixation and facilitating the fixing of steel strands of different thicknesses. The prestressed steel strand threading guide of this bridge has a better performance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the axial side structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the axial side structure of this utility model from another angle;

[0017] Figure 3 This utility model Figure 2 The diagram shows a partially enlarged axial side structure at point A.

[0018] In the diagram: 1. Stranded wire fixing block; 2. Stranded wire opening; 3. Threaded groove; 4. Threaded adjusting rod; 5. Stranded wire clamping plate; 6. Double-hole clamping plate; 7. Hexagonal positioning bolt block; 8. Traction wire. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-3This utility model discloses a prestressed steel strand threading guide for bridges, comprising a strand fixing block 1. A strand passage 2 is provided at the middle of the right end of the strand fixing block 1. Threaded grooves 3 are provided at both the top and bottom of the strand passage 2. A threaded adjusting rod 4 is provided in the middle of each threaded groove 3. Each threaded adjusting rod 4 engages with the threaded groove 3 in a threaded fit, allowing the threaded adjusting rod 4 to be adjusted along the threaded groove 3. Each threaded adjusting rod 4 is provided with a strand clamping plate 5, and each strand clamping plate 5 is provided with several positioning cones to facilitate the fixing of the strand. A double-hole clamping plate 6 is provided on the left side of the strand fixing block 1. Six positioning cones are provided at both the front and rear of the double-hole clamping plate 6. The hexagonal positioning bolt block 7 is used to mate with the strand fixing block 1. The mating method between the hexagonal positioning bolt block 7 and the strand fixing block 1 is threaded, allowing the hexagonal positioning bolt block 7 to be adjusted along the strand fixing block 1. A traction line 8 is provided at the left end of the strand fixing block 1. The edges of the strand fixing block 1, strand opening 2, threaded groove 3, threaded adjustment rod 4, strand clamping plate 5, double-hole clamping plate 6, hexagonal positioning bolt block 7, and traction line 8 are all rounded, so that the prestressed steel strand threading guide for bridges will not scratch the user during use. The prestressed steel strand threading guide for bridges can traction and guide the steel strands. It can fix the strands in two positions, which has better fixation and is convenient for fixing steel strands of different thicknesses.

[0021] In summary, the prestressed steel strand threading guide for bridges, when in use, first passes the steel strand through the strand passage 2. The strand is then initially fixed by the strand clamping plate 5 through the engagement of the threaded adjusting rod 4 and the threaded groove 3. Next, the steel strand is passed through the double-hole clamping plate 6, where each hexagonal positioning bolt block 7 engages with the strand fixing block 1 to position the double-hole clamping plate 6, thus providing a secondary fixation for the middle strand. Finally, the strand is guided by the traction line of the strand fixing block 1. This prestressed steel strand threading guide for bridges can guide and traction of the steel strands, providing dual-position fixation with better stability and facilitating the fixation of steel strands of different thicknesses. Therefore, this prestressed steel strand threading guide for bridges offers superior performance.

[0022] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0023] To better illustrate this embodiment, some parts in the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions.

[0024] Furthermore, unless otherwise defined, the technical or scientific terms used in this application description shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," and "outer," etc., used in this application description to indicate relative direction or positional relationship are used only to indicate relative orientation or positional relationship, and do not imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, and therefore should not be construed as a limitation on this application. The terms "first," "second," "third," and similar terms used in this application description are used only for descriptive purposes to distinguish different components, and should not be construed as indicating or implying relative importance. The terms "a," "one," or "the," etc., used in this application description should not be construed as an absolute limitation on quantity, but should be construed as indicating the existence of at least one. The terms "including," "comprising," etc., used in this application description mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.

[0025] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, terms such as “installation,” “connection,” and “linkage” used in the description of this application should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand its specific meaning in this application according to the specific circumstances.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prestressed steel strand threading guide for bridges, comprising a strand fixing block (1), characterized in that: The right end of the stranded wire fixing block (1) is provided with a stranded wire passage (2). The top and bottom ends of the stranded wire passage (2) are provided with threaded grooves (3). Each threaded groove (3) is provided with a threaded adjusting rod (4) in the middle. Each threaded adjusting rod (4) cooperates with the threaded groove (3). Each threaded adjusting rod (4) is provided with a stranded wire clamping plate (5). The left side of the stranded wire fixing block (1) is provided with a double-hole clamping plate (6). The front and rear parts of the double-hole clamping plate (6) are provided with hexagonal positioning bolt blocks (7). Each hexagonal positioning bolt block (7) cooperates with the stranded wire fixing block (1). The left end of the stranded wire fixing block (1) is provided with a traction wire (8).

2. The bridge prestressed steel strand threading guide according to claim 1, characterized in that: Each of the stranded wire clamping plates (5) is provided with several positioning cones.

3. A bridge prestressed steel strand threading guide according to claim 1, characterized in that: The edges of the stranded wire fixing block (1), stranded wire opening (2), threaded groove (3), threaded adjusting rod (4), stranded wire clamping plate (5), double-hole clamping plate (6), hexagonal positioning bolt block (7) and traction wire (8) are all rounded.

4. A bridge prestressed steel strand threading guide according to claim 1, characterized in that: The fit between each of the threaded adjusting rods (4) and the threaded groove (3) is a threaded fit.

5. A bridge prestressed steel strand threading guide according to claim 1, characterized in that: The fit between each of the hexagonal positioning bolt blocks (7) and the stranded wire fixing block (1) is a threaded fit.