High-strength wear-resistant retard-bonded prestressed steel strand
By using a split -type working clamp structure in the prestressed steel twisted, multiple working clamps move to the center and closely contact the prestressed steel twisted line, solving The problem improved the service life.
Patent Information
- Application Number
- CN202421115290.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-21
AI Technical Summary
During the construction process of existing prestressed steel strands, due to the overall structure of the working clip, there is less clamping area and low local friction resistance, which can easily lead to wear of the clip or prestressed steel strands, affecting their service life.
The split -type working clamp structure is adopted, and the coordination of the shape of the steel twisted component with the shape of the anchor hole is used to move multiple working clamps to the center. All of them are closely exposed to the prestressed steel twisted tangent through rubber pads to improve the friction resistance.
By increasing the area and friction resistance, the wear of the clamping or prestressed steel twisted thread is reduced, and the service life is prolonged.
Smart Images
Figure CN222412403U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of prestressed steel strands, in particular to a high-strength, wear-resistant, slow-bonding prestressed steel strand. Background Art
[0002] Prestressed steel strands are usually set in concrete structures and are composed of multiple steel wires. By tensioning the prestressed steel strands, the concrete structure can produce a certain pressure resistance, thereby improving the crack resistance and rigidity of the concrete structure. During the construction of prestressed steel strands, anchors are required to fix the steel strands. After the prestressed steel strands are tensioned, they will drive the working clips to slide inside the flat anchor plate. When the working clips slide, their open clips will move closer to the center, thereby applying tighter clamping pressure on the prestressed steel strands.
[0003] Existing working clips are usually integral structures. When the clips are bent toward the prestressed steel strands, only a part of the clips is in contact with the prestressed steel strands, resulting in a smaller clamped area of the prestressed steel strands and lower local friction resistance, which can easily cause wear on the clips or prestressed steel strands, affecting the overall service life. Utility Model Content
[0004] To this end, the utility model provides a high-strength, wear-resistant, slow-bonding prestressed steel strand, which has a split structure through the working clamp to solve the problem that when the clamp is bent toward the prestressed steel strand, only a part of the clamp is in contact with the prestressed steel strand, resulting in a smaller clamped area of the prestressed steel strand.
[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-strength, wear-resistant, slow-bonding prestressed steel strand, comprising a working anchor ring, the working anchor ring comprising a flat anchor plate, a plurality of anchor holes are provided inside the flat anchor plate, a plurality of anchor holes are provided inside each of the anchor holes, a prestressed steel strand is provided inside the steel strand fixing assembly, the steel strand fixing assembly comprises a working clip seat and a plurality of working clips, a plurality of slide seats are fixedly provided on one side of the working clip seat, a plurality of slide seats are provided on both sides of each of the slide seats, an arc ring is provided outside the working clip, a through groove is provided at one end of the working clip, protrusions are fixedly provided on both side walls of the through groove, a rubber pad is provided inside the working clip, and elastic rubber rings are sleeved inside the plurality of arc rings.
[0006] Preferably, the working clip seat is arranged inside the anchor hole and is slidably connected to the anchor hole.
[0007] Preferably, the working clip is arranged inside the anchor hole and is slidably connected to the anchor hole.
[0008] Preferably, the prestressed steel strand passes through the working clamp seat and is slidably connected to the working clamp seat.
[0009] Preferably, the prestressed steel strand is arranged between a plurality of working clips and is in contact with a plurality of rubber pads.
[0010] Preferably, the sliding seat is arranged inside the through slot and is slidably connected to the through slot.
[0011] Preferably, the protrusion is arranged inside the slide groove and is slidably connected to the slide groove.
[0012] The utility model embodiment has the following advantages:
[0013] 1. The cooperation between the protrusion and the slide groove prevents the working clip from being separated from the working clip seat. The cooperation between the elastic rubber ring and multiple arc rings ensures that multiple working clips always have the power to gather toward the center to ensure that the rubber pad is in contact with the prestressed steel strand;
[0014] 2. Through the coordination of the steel strand fixing assembly and the shape of the anchor hole, multiple working clips are moved toward the center, so that multiple working clips are in close contact with the prestressed steel strands through rubber pads, thereby increasing friction resistance and preventing the prestressed steel strands from sliding in the steel strand fixing assembly due to insufficient resistance, thereby reducing the wear of the clips or prestressed steel strands and increasing their service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.
[0016] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.
[0017] Figure 1 The overall structural diagram provided by the utility model;
[0018] Figure 2 A partial cutaway stereogram provided for the utility model;
[0019] Figure 3 The utility model provides a steel strand fixing assembly explosion stereo Figure 1 ;
[0020] Figure 4 The utility model provides a steel strand fixing assembly explosion stereo Figure 2 .
[0021] In the figure: 1 working anchor ring, 11 flat anchor plate, 12 anchor hole, 2 steel strand fixing assembly, 21 working clip seat, 211 slide seat, 212 slide groove, 22 working clip, 221 arc ring, 222 through groove, 223 convex block, 224 rubber pad, 23 elastic rubber ring, 3 prestressed steel strand. DETAILED DESCRIPTION
[0022] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0023] Refer to the attached Figure 1 -Attached Figure 4 The utility model provides a high-strength, wear-resistant, slow-bonding prestressed steel strand, comprising a working anchor ring 1, the working anchor ring 1 comprising a flat anchor plate 11, a plurality of anchor holes 12 are provided inside the flat anchor plate 11, a plurality of anchor holes 12 are provided inside each of the plurality of anchor holes 12, a prestressed steel strand 3 is provided inside the steel strand fixing assembly 2, the steel strand fixing assembly 2 comprises a working clip seat 21 and a plurality of working clips 22, a plurality of slide seats 211 are fixedly provided on one side of the working clip seat 21, a plurality of slide seats 211 are provided on both sides of each of the plurality of slide seats 211, an arcuate ring 221 is provided outside the working clip 22, a through groove 222 is provided at one end of the working clip 22, protrusions 223 are fixedly provided on both side walls of the through groove 222, a rubber pad 224 is provided inside the working clip 22, and elastic rubber rings 23 are sleeved inside the plurality of arcuate rings 221;
[0024] In this embodiment, in order to achieve the purpose of enabling all the clips to contact and clamp the prestressed steel strands, when the prestressed steel strands 3 move to the left, the steel strand fixing assembly 2 moves to the left inside the anchor hole 12, and the steel strand fixing assembly 2 cooperates with the shape of the anchor hole 12, so that the multiple working clips 22 move toward the center, so that the multiple working clips 22 clamp the prestressed steel strands 3 at the center through the rubber pads 224, so that the multiple working clips 22 are in close contact with the prestressed steel strands 3 through the rubber pads 224, thereby increasing the friction resistance and preventing the prestressed steel strands from sliding in the steel strand fixing assembly 2 due to insufficient resistance, thereby reducing the wear of the clips or the prestressed steel strands and increasing the service life;
[0025] Among them, in order to achieve the purpose of closing the working clips 22 to the center, the present device adopts the following technical solutions: the working clip seat 21 is arranged inside the anchor hole 12 and is slidably connected to the anchor hole 12, the working clip 22 is arranged inside the anchor hole 12 and is slidably connected to the anchor hole 12, the prestressed steel strand 3 passes through the working clip seat 21 and is slidably connected to the working clip seat 21, the prestressed steel strand 3 is arranged between multiple working clips 22 and contacts with multiple rubber pads 224, the steel strand fixing assembly 2 moves to the left inside the anchor hole 12, and the multiple working clips 22 move to the center through the cooperation between the steel strand fixing assembly 2 and the shape of the anchor hole 12;
[0026] Among them, in order to prevent the working clamp 22 from disengaging from the working clamp seat 21, the present device is implemented by the following technical scheme: the slide seat 211 is arranged inside the through groove 222 and is slidably connected to the through groove 222, the protrusion 223 is arranged inside the slide groove 212 and is slidably connected to the slide groove 212, and the working clamp 22 is prevented from disengaging from the working clamp seat 21 through the cooperation between the protrusion 223 and the slide groove 212, and the multiple working clamps 22 always have the power to gather toward the center through the cooperation between the elastic rubber ring 23 and the multiple arc rings 221, so as to ensure that the rubber pad 224 is in contact with the prestressed steel strand 3.
[0027] The use process of the utility model is as follows: when using the utility model, when the prestressed steel strand 3 moves to the left, the steel strand fixing assembly 2 moves to the left inside the anchor hole 12, and through the cooperation between the steel strand fixing assembly 2 and the shape of the anchor hole 12, the multiple working clips 22 move toward the center, so that the multiple working clips 22 clamp the prestressed steel strand 3 at the center through the rubber pad 224, so that the multiple working clips 22 are in close contact with the prestressed steel strand 3 through the rubber pad 224, thereby increasing the friction resistance and preventing the prestressed steel strand from sliding in the steel strand fixing assembly 2 due to insufficient resistance, thereby reducing the wear of the clips or the prestressed steel strand and increasing the service life.
[0028] The above are only preferred embodiments of the present invention. Any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the above technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the present invention shall fall within the scope of protection claimed by the present invention.
Claims
1. A high-strength, wear-resistant, slow-bonding prestressed steel strand, comprising a working anchor ring (1), characterized in that: The working anchor ring (1) comprises a flat anchor plate (11), a plurality of anchor holes (12) are provided inside the flat anchor plate (11), a steel strand fixing assembly (2) is provided inside the plurality of anchor holes (12), a prestressed steel strand (3) is provided inside the steel strand fixing assembly (2), the steel strand fixing assembly (2) comprises a working clip seat (21) and a plurality of working clips (22), a plurality of slide seats (211) are fixedly provided on one side of the working clip seat (21), a plurality of slide seats (211) are provided on both sides of the plurality of slide seats (211), an arcuate ring (221) is provided outside the working clip (22), a through groove (222) is provided at one end of the working clip (22), protrusions (223) are fixedly provided on both side walls of the through groove (222), a rubber pad (224) is provided inside the working clip (22), and elastic rubber rings (23) are sleeved inside the plurality of arcuate rings (221).
2. The high-strength, wear-resistant, slow-bonding prestressed steel strand according to claim 1, characterized in that: The working clamp seat (21) is arranged inside the anchor hole (12) and is slidably connected to the anchor hole (12).
3. The high-strength, wear-resistant, slow-bonding prestressed steel strand according to claim 1, characterized in that: The working clamp (22) is arranged inside the anchor hole (12) and is slidably connected to the anchor hole (12).
4. The high-strength, wear-resistant, slow-bonding prestressed steel strand according to claim 1, characterized in that: The prestressed steel strand (3) passes through the working clamp seat (21) and is slidably connected to the working clamp seat (21).
5. The high-strength, wear-resistant, slow-bonding prestressed steel strand according to claim 1, characterized in that: The prestressed steel strand (3) is arranged between a plurality of working clamps (22) and is in contact with a plurality of rubber pads (224).
6. The high-strength, wear-resistant, slow-bonding prestressed steel strand according to claim 1, characterized in that: The sliding seat (211) is disposed inside the through slot (222) and is slidably connected to the through slot (222).
7. The high-strength, wear-resistant, slow-bonding prestressed steel strand according to claim 1, characterized in that: The protrusion (223) is disposed inside the slide groove (212) and is slidably connected to the slide groove (212).