Recyclable anchor cable structure and method of use thereof

Abstract

The present invention discloses a recyclable anchor cable structure, comprising an outer protective sleeve and a limiting top plate, a working anchor, a conical clip, a top removal cap, a reset spring, an anchor cable insert and a limiting bottom plate placed inside the outer protective sleeve, wherein the limiting top plate and the limiting bottom plate are respectively fixed on both sides of the outer protective sleeve. The working anchor is abutted against the right side of the limiting top plate, and the limiting top plate, the working anchor and the limiting bottom plate are provided with through holes. The connecting rod passes through the limiting top plate, the working anchor and the limiting bottom plate, and the two ends of the connecting rod are threadedly connected with locking nuts. The top removal cap is abutted against the end face of the conical clip, and one end of the reset spring is fixedly connected to the top removal cap and the other end is fixed to the limiting bottom plate. The recyclable anchor cable structure has a simple structure, and the anchor cable is easy to recycle, and the recycle anchor cable remains in a straight state, which is convenient for secondary use.

Description

Technical Field

[0001] The present invention relates to the technical field of slope reinforcement, and in particular to a recyclable anchor cable structure and a use method thereof. Background Art

[0002] Anchor cable reinforcement support is an important support method for building foundation pits. It is mostly used in foundation pit projects with high safety requirements or large-scale projects. Most of them are temporary supports. After the main structure is completed, these temporary support structures no longer play a role. Ordinary anchor cables cannot be recovered and are buried underground together with the constructed structures, occupying a large amount of underground space, forming underground garbage, causing underground environmental pollution, and having a great impact on the excavation of adjacent plots.

[0003] Recyclable anchor cables are an inevitable product of the development of anchor cable technology. Patent publication number CN200964593Y discloses a recyclable prestressed anchor cable. This cable utilizes a complex U-shaped carrier structure, resulting in high manufacturing costs. The U-shaped steel strands not only reduce their strength but also increase the cost of the cable body. Furthermore, after recovery, the strands become wavy and cannot be restored to their original linear shape, making them unreusable. Patent publication number CN108867637A discloses an anchor for a recyclable anchor cable, a method for locking the cable, and a method for recovering the cable. The anchor cable includes a guide housing, a cone sleeve, and a locking device for installing the anchor cable. Locking and unlocking the anchor cable requires rotating the locking device. However, in actual construction, slurry is injected into the locking device, creating significant resistance to rotation and making it difficult to rotate once the threads are engulfed in sand. Summary of the Invention

[0004] In order to solve the above problems, the present invention designs a recyclable anchor cable structure. The recyclable anchor cable structure has a simple structure, is easy to recycle, and the recycle anchor cable remains straight, which is convenient for secondary use.

[0005] In order to achieve the above technical effects, the present invention is implemented through the following technical solutions:

[0006] A recyclable anchor cable structure includes an outer protective sleeve and a retaining top plate, a working anchor, a conical clip, a top removal cap, a return spring, an anchor cable insert, and a retaining bottom plate positioned within the outer protective sleeve. The retaining top plate and the retaining bottom plate are fixed to either side of the outer protective sleeve. The working anchor is abutted against the right side of the retaining top plate. The retaining top plate, the working anchor, and the retaining bottom plate are perforated. A connecting rod passes through the retaining top plate, the working anchor, and the retaining bottom plate. Locking nuts are threaded onto the ends of the connecting rod. The working anchor has a conical hole, into which the conical clip is inserted. The top removal cap abuts against the end surface of the conical clip. One end of the return spring is fixedly connected to the top removal cap, and the other end is fixed to the retaining bottom plate. Working holes for the anchor cable are formed in the retaining top plate and the retaining bottom plate. The closed end of the anchor cable insert is inserted through the working hole of the retaining bottom plate. The anchor cable insert passes through the return spring, the top removal cap, the working anchor, and exits through the working hole of the retaining top plate.

[0007] Furthermore, a hook tongue is provided on the right end face of the working anchor, and a groove matching the hook tongue is opened on the wing plate of the limiting base plate. The working anchor can slide along the connecting rod to the limiting base plate, and the hook tongue can be stuck in the groove of the limiting base plate to form a lock.

[0008] Furthermore, the outer protective sleeve and the anchor cable insert are made of PVC material.

[0009] The present invention also provides a method for using the recyclable anchor cable structure, comprising the following steps:

[0010] S1. Insert the anchor cable into the anchor cable insert barrel so that the anchor cable insert barrel falls from the left end of the outer protective sleeve, and then close the front end of the outer protective sleeve into a cone shape;

[0011] S2. Anchoring: Tie the primary grouting pipe to the side wall of the outer protective sleeve and insert it into the front end of the drill hole along with the outer protective sleeve;

[0012] S3. Grouting: Cement slurry is injected into the borehole through a primary grouting pipe. After the cement slurry solidifies, a cement grouting body is formed. Anchors are used to tension and anchor the anchor cables.

[0013] S4. Recovery: The anchor cable is tensioned at the rear end, and the working anchor moves toward the limiting base plate under the traction of the anchor cable. The hook tongue fixed on the right end face of the working anchor then enters the limiting base plate and is inserted into the groove of the limiting base plate to form a lock. The anchor cable is continuously tensioned, and the reset spring is continuously compressed, and the elastic force increases accordingly. The elastic force of the reset spring acts on the conical clip through the top cap. When the elastic force of the reset spring is greater than the friction between the conical clip and the working anchor and the anchor cable, the conical clip is pushed out of the conical hole by the top cap, and the anchor cable is pulled out of the working anchor and then out of the grouting body, thereby achieving the purpose of recovery.

[0014] The beneficial effects of the present invention are as follows: the recyclable anchor cable structure has a simple structure, the anchor cable is easy to recycle, and the recycle anchor cable remains in a straight state, which is convenient for secondary utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a cross-sectional structural diagram of the retrievable anchor cable structure in service;

[0017] Figure 2 It is a cross-sectional structural diagram of a recyclable anchor cable structure;

[0018] Figure 3 It is a structural diagram of the limiting base plate;

[0019] Figure 4 It is a structural diagram of the working anchor;

[0020] Figure 5 It is a structural schematic diagram of the limiting top plate.

[0021] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0022] 1-surrounding rock, 2-primary grouting pipe, 3-drill hole, 4-outer protective sleeve, 5-anchor cable, 6-cement grouting body, 7-limiting top plate, 8-working anchor, 9-conical clip, 10-top removal cap, 11-limiting bottom plate, 12-reset spring, 13-concrete crown beam, 14-hook tongue, 15-connecting rod, 16-groove, 17-locking nut, 18-anchor cable insert, 19-conical hole. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0024] like Figure 1-3As shown, a recyclable anchor cable structure includes an outer protective sleeve 4 and a limiting top plate 7, a working anchor 8, a conical clip 9, a top removal cap 10, a return spring 12, an anchor cable insert 18, and a limiting bottom plate 11 placed inside the outer protective sleeve. The outer protective sleeve and anchor cable insert are made of PVC material. The limiting top plate 7 and the limiting bottom plate 11 are respectively fixed to the sides of the outer protective sleeve 4. The working anchor 8 is abutted against the right side of the limiting top plate 7. The limiting top plate 7, the working anchor 8, and the limiting bottom plate 11 are perforated. A connecting rod 15 passes through the limiting top plate 7, the working anchor 8, and the limiting bottom plate 11. The connecting rod 15 is threaded with a locking nut 17 at both ends. The working anchor 8 has a tapered hole 19, into which the tapered clip 9 is inserted. The top removal cap 10 abuts against the end surface of the tapered clip 9. One end of the return spring 12 is fixedly connected to the top removal cap 10, and the other end is fixed to the limiting base plate 11. The limiting top plate 7 and the limiting base plate 11 have working holes through which the anchor cable 5 passes. The closed end of the anchor cable insert 18 is inserted through the working hole of the limiting base plate 11. The anchor cable insert 18 passes through the return spring 12, the top removal cap 10, the working anchor 8, and exits from the working hole of the limiting top plate 7.

[0025] like Figure 4-5 As shown, a hook tongue 14 is provided on the right end face of the working anchor 8, and a groove 16 matching the hook tongue is opened on the wing plate of the limiting base plate 11. The working anchor 8 can slide along the connecting rod 15 to the limiting base plate 11, and the hook tongue 14 can be stuck in the groove 16 of the limiting base plate to form a lock.

[0026] The method for using the recyclable anchor cable structure of the present invention comprises:

[0027] S1. Insert the anchor cable into the anchor cable insert barrel so that the anchor cable insert barrel falls from the left end of the outer protective sleeve, and then close the front end of the outer protective sleeve into a cone shape;

[0028] S2. Anchoring: Tie the primary grouting pipe to the side wall of the outer protective sleeve and insert it into the front end of the drill hole along with the outer protective sleeve;

[0029] S3. Grouting: Cement slurry is injected into the borehole through a primary grouting pipe. After the cement slurry solidifies, a cement grouting body is formed. Anchors are used to tension and anchor the anchor cables.

[0030] S4. Recovery: The anchor cable is tensioned at the rear end, and the working anchor moves toward the limiting base plate under the traction of the anchor cable. The hook tongue fixed on the right end face of the working anchor then enters the limiting base plate and is inserted into the groove of the limiting base plate to form a lock. The anchor cable is continuously tensioned, and the reset spring is continuously compressed, and the elastic force increases accordingly. The elastic force of the reset spring acts on the conical clip through the top cap. When the elastic force of the reset spring is greater than the friction between the conical clip and the working anchor and the anchor cable, the conical clip is pushed out of the conical hole by the top cap, and the anchor cable is pulled out of the working anchor and then out of the grouting body, thereby achieving the purpose of recovery.

[0031] In this specification, reference to terms such as "one embodiment," "example," or "specific example" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0032] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A retractable anchor cable structure, comprising an outer protective sleeve and a limiting top plate, a working anchor, a conical clip, a top removal cap, a reset spring, an anchor cable insert and a limiting bottom plate, the limiting top plate and the limiting bottom plate being respectively fixed on both sides of the outer protective sleeve; the working anchor cable is abutted against the right side of the limiting top plate, the limiting top plate, the working anchor cable and the limiting bottom plate are provided with through holes, the connecting rod passes through the limiting top plate, the working anchor cable and the limiting bottom plate, and the two ends of the connecting rod are threadedly connected with locking nuts; a conical hole is provided on the working anchor cable, the conical clip is inserted into the conical hole, the right end surface of the working anchor cable is provided with a hook tongue, and a wing plate of the limiting bottom plate is provided with a groove matching the hook tongue, the working anchor cable can slide along the connecting rod to the limiting bottom plate, and the hook tongue can be stuck in the groove of the limiting bottom plate to form a lock, which is characterized in that The top removal cap is held against the end surface of the conical clip, one end of the reset spring is fixedly connected to the top removal cap and the other end is fixed to the limiting bottom plate; the limiting top plate and the limiting bottom plate are provided with working holes for the anchor cable to pass through, the closed end of the anchor cable insert tube is inserted through the working hole of the limiting bottom plate, and the anchor cable insert tube passes through the reset spring, the top removal cap, the working anchor in sequence and passes through the working hole of the limiting top plate.

2. The method for using a recyclable anchor cable structure according to claim 1, characterized in that: The following steps are involved: S1. Insert the anchor cable into the anchor cable insert barrel so that the anchor cable insert barrel falls from the left end of the outer protective sleeve, and then close the front end of the outer protective sleeve into a cone shape; S2. Anchoring: Tie the primary grouting pipe to the side wall of the outer protective sleeve and insert it into the front end of the drill hole along with the outer protective sleeve; S3. Grouting: Cement slurry is injected into the borehole through a primary grouting pipe. After the cement slurry solidifies, a cement grouting body is formed. Anchors are used to tension and anchor the anchor cables. S4. Recovery: The anchor cable is tensioned at the rear end, and the working anchor moves toward the limiting base plate under the traction of the anchor cable. The hook tongue fixed on the right end face of the working anchor then enters the limiting base plate and is inserted into the groove of the limiting base plate to form a lock. The anchor cable is continuously tensioned, and the reset spring is continuously compressed, and the elastic force increases accordingly. The elastic force of the reset spring acts on the conical clip through the top cap. When the elastic force of the reset spring is greater than the friction between the conical clip and the working anchor and the anchor cable, the conical clip is pushed out of the conical hole by the top cap, and the anchor cable is pulled out of the working anchor and then out of the grouting body, thereby achieving the purpose of recovery.

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