Pre-stressed anchor cable device

By using a combination structure of bellows, sealing rings, limiting posts, and limiting holes in the anchor cable device, the problem of short service life of anchor cables in corrosive environments is solved, and the protection of steel strands and the stability of the equipment are improved.

CN224213282UActive Publication Date: 2026-05-08云南省设计院集团勘察院有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
云南省设计院集团勘察院有限公司
Filing Date
2025-05-12
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Anchor cables are susceptible to corrosive media underground or in natural environments, which can reduce their service life.

Method used

The combination structure of corrugated pipe, sealing ring, sealing gasket, limiting post and limiting hole is adopted to protect the steel strand, increase the service life of the steel strand and improve the stability of the anchor plate.

Benefits of technology

It effectively prevents corrosive media from damaging the steel strands, extends their service life, improves equipment stability, and prevents steel strand breakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pre-stressed anchor cable device, which belongs to the technical field of anchor cable devices and comprises an anchor gasket, the outer surface of the anchor gasket is communicated with a limiting pipe, a sealing gasket is mounted on the outer surface of the limiting pipe, a plurality of steel beams are arranged in the limiting pipe, and the outer surfaces of the steel beams are jointly connected with a sealing ring in a sliding manner. A corrugated pipe is arranged in the limiting pipe in a sleeved mode, each steel beam is formed by twisting a plurality of steel wires, a grouting pipe is arranged in the corrugated pipe, two sets of mounting holes are formed in the outer surface of an anchor gasket, and through cooperation of the corrugated pipe, a sealing ring, a sealing gasket, a limiting column and a limiting hole, the steel beams can be protected; according to the device, the service life of the steel beam is greatly prolonged, the stability of the anchor plate is greatly improved, the using effect of the device is better, the limiting pipe, the pressure plate and the anchor plate are arranged, the tensile force borne by the steel beam can be dispersed, and the situation that the steel beam is fractured due to the fact that the steel beam is excessively stressed is prevented.
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Description

Technical Field

[0001] This utility model relates to the field of anchor cable device technology, specifically a prestressed anchor cable device. Background Technology

[0002] Anchor cables are devices used in geotechnical engineering to reinforce rock masses. They are made by applying tension to an anchor cable, one end of which is fixed to the rock mass to be reinforced and the other end is anchored to a stable rock mass. This generates compressive stress between the rock mass to be reinforced and the stable rock mass, thereby increasing the resistance to sliding; or generating an upward component force, thereby reducing the sliding force, thus achieving the purpose of reinforcing the rock mass.

[0003] However, anchor cables are usually located underground or exposed to the natural environment, making them susceptible to corrosive media such as groundwater and acidic or alkaline substances in the soil, which significantly reduces the service life of prestressed anchor cables. Therefore, those skilled in the art have provided a prestressed anchor cable device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a prestressed anchor cable device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A prestressed anchor cable device includes an anchor pad, the outer surface of which is connected to a limiting tube, a sealing gasket is installed on the outer surface of the limiting tube, a plurality of steel strands are provided inside the limiting tube, a sealing ring is slidably connected to the outer surfaces of the plurality of steel strands, and a corrugated pipe is sleeved inside the limiting tube.

[0007] As a further improvement of this utility model: each of the steel strands is made of multiple steel wires twisted together, and the corrugated pipe is provided with a grouting pipe inside.

[0008] As a further improvement of this utility model: the outer surface of the anchor pad is provided with two sets of mounting holes, and each mounting hole is provided with a mounting screw.

[0009] As a further improvement of this utility model: multiple steel strands are collectively fitted with an anchor plate, and the anchor plate is internally clamped with a clip.

[0010] As a further improvement of this utility model: the inner wall of each clip is in contact with the steel strand, and the outer surface of the anchor plate is provided with a ring of limiting holes.

[0011] As a further embodiment of this utility model: a pressure plate is commonly sleeved on the outside of the plurality of steel strands, and a ring of limiting posts is installed on the outer surface of the pressure plate.

[0012] As a further improvement of this utility model: each of the limiting posts is adapted to the limiting hole, and the outer surface of the pressure plate is provided with annularly arranged circular holes.

[0013] As a further improvement of this utility model: the corrugated pipe is fitted with spiral ribs on the outside, and the sealing ring and sealing gasket are both made of rubber.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This prestressed anchor cable device, through the cooperation of corrugated pipe, sealing ring, sealing gasket, limiting post and limiting hole, can not only protect the steel strand, thus greatly increasing the service life of the steel strand, but also greatly increase the stability of the anchor plate, thereby making the equipment perform better. The setting of limiting pipe, pressure plate and anchor plate can disperse the tensile force on the steel strand, preventing the steel strand from being under excessive stress and breaking. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of a prestressed anchor cable device;

[0017] Figure 2 A side view of a prestressed anchor cable device;

[0018] Figure 3 This is a bottom view of a prestressed anchor cable device;

[0019] Figure 4 This is a front sectional view of the limiting tube of a prestressed anchor cable device;

[0020] Figure 5 In a prestressed anchor cable device Figure 2 A magnified structural diagram of part A in the middle.

[0021] In the diagram: 1. Anchor pad; 2. Limiting tube; 3. Corrugated pipe; 4. Sealing ring; 5. Sealing gasket; 6. Steel strand; 7. Anchor plate; 8. Limiting hole; 9. Pressure plate; 10. Limiting post; 11. Clip; 12. Mounting hole; 13. Mounting screw; 14. Spiral reinforcement; 15. Grouting pipe; 16. Round hole. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, 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 based on the specific circumstances.

[0024] Please see Figures 1-5 In this embodiment of the present invention, a prestressed anchor cable device includes an anchor pad 1, the outer surface of the anchor pad 1 is connected to a limiting tube 2, a sealing gasket 5 is installed on the outer surface of the limiting tube 2, a plurality of steel strands 6 are provided inside the limiting tube 2, a sealing ring 4 is slidably connected to the outer surface of the plurality of steel strands 6, and a corrugated pipe 3 is sleeved inside the limiting tube 2 to protect the steel strands 6, thereby greatly increasing the service life of the steel strands 6. This solves the problem mentioned in the background art that anchor cables are usually underground or exposed to the natural environment and are easily affected by corrosive media, such as groundwater and acidic or alkaline substances in the soil, which greatly reduces the service life of prestressed anchor cables.

[0025] Each steel bundle 6 is made of multiple stranded steel wires. The corrugated pipe 3 has a grouting pipe 15 inside. The outer surface of the anchor plate 1 has two sets of mounting holes 12. Each mounting hole 12 has a mounting screw 13 inside. The anchor plate 7 is fitted on the outside of multiple steel bundles 6. The anchor plate 7 has a clip 11 inside, which allows people to assemble and disassemble the anchor plate 7, thereby making the anchor plate 7 more stable.

[0026] The inner wall of each clip 11 is in contact with the steel strand 6. The outer surface of the anchor plate 7 is provided with annularly arranged limiting holes 8. Multiple steel strands 6 are collectively fitted with a pressure plate 9. The outer surface of the pressure plate 9 is fitted with annularly arranged limiting posts 10. Each limiting post 10 is adapted to the limiting hole 8. The outer surface of the pressure plate 9 is provided with annularly arranged round holes 16. The corrugated pipe 3 is fitted with a spiral rib 14. The sealing ring 4 and sealing gasket 5 are both made of rubber, which can not only prevent external corrosive liquids from damaging the steel strands 6, thus greatly increasing the service life of the steel strands 6, but also greatly increasing the stability of the pressure plate 9.

[0027] The working principle of this utility model is as follows: First, people can assemble the limiting tube 2, sealing ring 4, pressure plate 9, anchor plate 7, clamp 11, grouting pipe 15 and spiral reinforcement 14. Then, the equipment can be pre-embedded in the usage position. The setting of sealing ring 4, sealing gasket 5 and corrugated pipe 3 can prevent external corrosive liquid from damaging the steel strand 6, thereby completing the protection of the steel strand 6. The setting of limiting post 10 and limiting hole 8 can prevent the pressure plate 9 from being displaced during construction.

[0028] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalent elements of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] 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 prestressed anchor cable device, comprising an anchor pad (1), characterized in that, The outer surface of the anchor pad (1) is connected to the limiting tube (2), the outer surface of the limiting tube (2) is equipped with a sealing gasket (5), the inside of the limiting tube (2) is provided with multiple steel strands (6), the outer surfaces of the multiple steel strands (6) are slidably connected with a sealing ring (4), and the inside of the limiting tube (2) is fitted with a corrugated tube (3).

2. The prestressed anchor cable device according to claim 1, characterized in that, Each of the steel strands (6) is made of multiple strands of steel wires, and the corrugated pipe (3) is provided with a grouting pipe (15) inside.

3. A prestressed anchor cable device according to claim 1, characterized in that, The outer surface of the anchor pad (1) is provided with two sets of mounting holes (12), and each mounting hole (12) is provided with a mounting screw (13).

4. A prestressed anchor cable device according to claim 1, characterized in that, An anchor plate (7) is commonly fitted around the outside of multiple steel strands (6), and a clip (11) is snapped into the inside of the anchor plate (7).

5. A prestressed anchor cable device according to claim 4, characterized in that, The inner wall of each of the clips (11) is in contact with the steel bundle (6), and the outer surface of the anchor plate (7) is provided with a ring of limiting holes (8).

6. A prestressed anchor cable device according to claim 1, characterized in that, A pressure plate (9) is commonly fitted around the outside of multiple steel strands (6), and a ring of limiting posts (10) are installed on the outer surface of the pressure plate (9).

7. A prestressed anchor cable device according to claim 6, characterized in that, Each of the limiting posts (10) is adapted to the limiting hole (8), and the outer surface of the pressure plate (9) is provided with annularly arranged circular holes (16).

8. A prestressed anchor cable device according to claim 1, characterized in that, The corrugated pipe (3) is fitted with a spiral rib (14) on the outside, and the sealing ring (4) and sealing gasket (5) are both made of rubber.