Recyclable expansion anchor rod

Abstract

The utility model aims to provide a recyclable expansion anchor rod, which belongs to the technical field of anchor rod structures and comprises an anchoring pipe and a rod body, the anchoring pipe is formed by equally cutting a conical ring into four parts along the length direction of the conical ring, the four parts are circumferentially distributed in an array manner by taking the axis of the conical ring as a central axis, and an anchoring bolt is arranged at the tail end of each part; the rod body is in a cone frustum shape with the front portion narrow and the rear portion wide, a base plate is arranged at the tail end of the rod body, a hole corresponding to the anchor bolt is formed in the base plate, and the anchor bolt penetrates through the hole. And the rod body extends into the conical ring cavity of the anchoring pipe and axially moves relative to the anchoring pipe. The anchor rod can be recycled, a full-anchor supporting mode is adopted, expansion and contraction are achieved through relative movement of the rod body and the anchoring pipe, the anchor rod can be inserted again for use after being detached, and the utilization rate and economical efficiency of materials are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of anchor bolt structures, and particularly relates to a recyclable expandable anchor bolt. Background Art

[0002] An anchor bolt is a support device widely used in engineering fields such as rock slope stability, foundation support, and tunnel excavation. The current anchor bolt anchoring technology usually consists of other fixing devices such as baffles, rod bodies, and anchoring ends. However, these traditional technologies have some deficiencies. For example, the traditional anchor bolt support device is usually difficult to disassemble and reuse after use, which limits its application scope in some projects; the existing expandable anchor bolts are prone to problems such as uneven expansion and loosening during the installation process, reducing the stability and safety of the anchor bolt system. Summary of the Utility Model

[0003] In view of the above problems, the utility model provides a recyclable expandable anchor bolt with a simple structure, convenient installation, and high anchoring efficiency.

[0004] The utility model adopts the following technical scheme:

[0005] A recyclable expandable anchor bolt includes an anchoring tube and a rod body. The anchoring tube is evenly cut into four parts along its length direction by a conical ring and is circumferentially arrayed and surrounded with its axis as the central axis. An anchoring bolt is provided at the end of each part; the rod body is in the shape of a frustum of a cone with a narrow front and a wide rear. A chassis is provided at the end of the rod body, and holes corresponding to the anchoring bolts are provided on the chassis. The anchoring bolts pass through the holes; the rod body extends into the conical ring cavity of the anchoring tube and moves axially relative to the anchoring tube.

[0006] Furthermore, elastic rings for fixing are provided in grooves respectively arranged at the upper and lower ends of the outer side wall of the anchoring tube.

[0007] Furthermore, an anchoring nut for fastening is provided at one end of the anchoring bolt passing through the hole.

[0008] Furthermore, a transverse protrusion structure is provided at the bottom of the anchoring nut.

[0009] Furthermore, a gasket is provided between the anchoring nut and the chassis, and the gasket is sleeved on the anchoring bolt.

[0010] Furthermore, length marks are provided on the outer side wall of the rod body.

[0011] The beneficial effects of the utility model are as follows:

[0012] The utility model can be recycled, adopts a full-anchor support method, realizes expansion and contraction through the relative movement of the rod body and the anchor tube, so that it can be reinserted and used after disassembly, improving the material utilization rate and economy. The adjustable gap design enables the anchor bolt to adapt to structures of different sizes and shapes, improving the versatility and applicability of the anchor bolt. This design feature makes the anchor bolt more flexible and able to meet different engineering requirements. Its structure is simple and effective, easy to install, can resist large horizontal and vertical stresses, and can provide reliable anchoring support in various engineering scenarios such as mines, tunnels and rock masses, with broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural view of the anchor tube of the utility model;

[0014] Figure 2 is a schematic exploded view of the anchor tube of the utility model;

[0015] Figure 3 is a schematic structural view of the rod body of the utility model;

[0016] Figure 4 is a schematic view of the initial assembly state of the anchor tube and the rod body of the utility model;

[0017] Figure 5 is a cross-sectional view of the initial assembly state of the anchor tube and the rod body of the utility model;

[0018] Figure 6 is a schematic view of the expanded state of the assembly of the anchor tube and the rod body of the utility model Figure 1 ;

[0019] Figure 7 is a schematic view of the expanded state of the assembly of the anchor tube and the rod body of the utility model Figure 2 ;

[0020] Figure 8 is a cross-sectional view of the expanded state of the assembly of the anchor tube and the rod body of the utility model;

[0021] Wherein: 1 - anchor tube; 2 - anchor bolt; 3 - rod body; 301 - chassis; 302 - hole; 4 - elastic ring; 5 - anchor nut; 6 - gasket; 7 - groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In combination with the drawings, the utility model will be further described.

[0023] As shown in the figure, a recyclable expansion anchor bolt includes an anchor tube 1, a rod body 3, an elastic ring 4, an anchor nut 5, and a gasket 6; the rod body 3 is in the shape of a frustum of a cone with a narrow front and a wide rear, and a chassis 301 is fixedly connected to the tail end;

[0024] The anchoring pipe 1 is formed by evenly cutting a conical ring into four parts along its length direction and circumferentially arraying and enclosing them with its axis as the central axis. An anchoring bolt 2 is provided at the tail end of the anchoring pipe 1;

[0025] The rod body 3 is placed inside the anchoring pipe 1. The rod body 3 can move axially relative to the anchoring pipe 1. During the process of inserting the rod body 3 from the tail end of the anchoring pipe 1, the rod body 3 exerts a uniform pressure on the inner wall of the anchoring pipe 1, prompting it to continuously expand and unfold towards the surrounding until the rod body 3 is completely inserted into the anchoring pipe 1. When the anchoring pipe 1 reaches the maximum expansion angle, tighten the anchoring nut 5 to firmly anchor the entire expansion bolt system in the structure.

[0026] Furthermore, the chassis 301 fixed at the tail end of the rod body 3 is provided with four holes 302 pointing towards the central axis of the rod body 3. The design of the holes 302 helps to guide the anchoring bolt 2 at the tail end of the anchoring pipe 1 to slide smoothly during expansion and unfolding.

[0027] Furthermore, two grooves 7 are provided on the whole body of the anchoring pipe 1. Each groove 7 is used to arrange an elastic ring 4 to prevent the anchoring pipe 1 from becoming loose after the rod body 3 is pulled out.

[0028] Furthermore, the anchoring pipe 1 and the rod body 3 are made of high-strength and corrosion-resistant metal materials, aiming to improve the durability and corrosion resistance of the bolt and meet the anchoring requirements under various environmental conditions.

[0029] Furthermore, a transverse convex structure is provided at the bottom of the anchoring nut 5 to improve its stability and the ability to resist lateral forces during anchoring.

[0030] Furthermore, the gasket 6 is sleeved on the anchoring bolt 2 at the tail end of the anchoring pipe 1 and is located between the chassis 301 at the tail end of the rod body 3 and the anchoring nut 5. The setting of the gasket can improve the stability of the anchoring and reduce the risk of vibration and loosening.

[0031] Length marks are set on the rod body 3, which helps users accurately grasp the relationship between the insertion depth and the expansion degree during insertion, improving the convenience and accuracy of using the bolt.

[0032] When the bolt is not needed, the anchoring nut 5 can be loosened, and the rod body chassis 301 can be hammered outwards to easily remove the rod body 3 from the anchoring pipe 1. The split anchoring pipe 1 also contracts with the rod body 3 axis as the center under the elastic force restraint of the elastic ring 4, and then the anchoring pipe 1 can be taken out. The utility model facilitates the maintenance and adjustment of the structure, ensuring the reusability of the bolt and a firm anchoring effect.

[0033] The above are only the preferred embodiments of the present utility model and do not limit the present utility model. Those skilled in the art can make changes or modifications according to the disclosed technical content above to achieve equivalent embodiments. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A recyclable expansion bolt, characterized in that: It includes an anchor tube (1) and a rod body (3). The anchor tube (1) is evenly cut into four parts along its length by a conical ring and is formed by circumferentially arraying and enclosing with its axis as the central axis. An anchor bolt (2) is provided at the end of each part; the rod body (3) is in the shape of a frustum of a cone with a narrow front and a wide rear. A chassis (301) is provided at the end of the rod body (3), and holes (302) corresponding to the anchor bolts (2) are provided on the chassis (301). The anchor bolts (2) pass through the holes (302); the rod body (3) extends into the conical ring cavity of the anchor tube (1) and moves axially relative to the anchor tube (1).

2. The recyclable expansion anchor bolt according to claim 1, characterized in that: Grooves (7) are respectively provided at the upper and lower ends of the outer side wall of the anchor tube (1), and elastic rings (4) for fixing are provided in the grooves (7).

3. The recyclable expansion bolt according to claim 1, characterized in that: An anchor nut (5) for fastening is provided at one end of the anchor bolt (2) passing through the hole (302).

4. The recyclable expansion anchor bolt according to claim 3, characterized in that: A transverse convex structure is provided at the bottom of the anchor nut (5).

5. The recyclable expandable anchor bolt according to claim 4, characterized in that: A gasket (6) is provided between the anchor nut (5) and the chassis (301), and the gasket (6) is sleeved on the anchor bolt.

6. The recyclable expandable bolt according to claim 1, characterized in that: Length marks are provided on the outer side wall of the rod body (3).

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