Rock anchor rod with self-locking structure

Abstract

The rock anchor rod with the self-locking structure comprises a fixing head, a plurality of unfolding assemblies are installed on the outer surface of the fixing head, a reinforcing assembly is installed on the outer surface of each unfolding assembly, and the right end of the fixing head is connected with a pouring assembly through a clamping assembly. And an anchor rod body is installed in the pouring assembly, a threaded rod is installed at the left end of the anchor rod body, the threaded rod is in threaded connection with the right end of the fixing head, and a conical rod is installed at the left end of the threaded rod. According to the utility model, the plurality of unfolding assemblies are mounted on the outer surface of the fixing head, so that the conical rod can be driven to move rightwards due to the rotation of the threaded rod in the mounting process of the device, the overturning top plates in the plurality of unfolding assemblies can extend out, and the fixing head is fixed in an anchor rod pit slot; therefore, by means of the device, the problem that due to the fact that an existing device is not internally provided with a self-locking mechanism, anchor rod installation is not firm enough is effectively solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rock anchor, in particular to a rock anchor with self-locking structure. BACKGROUND

[0002] The anchor rod is a structural element for reinforcing soil or rock, commonly used in underground tunnels, excavation engineering, geotechnical engineering and other fields, with the functions of supporting and reinforcing. In the traditional steel anchor rod construction operation, the hole is first formed, then the anchor rod is put into the hole, and then the grouting is injected into the hole through the hole in the middle of the anchor rod. The self-advancing hollow grouting anchor rod is one kind of anchor rod.

[0003] The Chinese patent with publication number CN204060746U discloses a rock anchor, which comprises a rod body and an end head. The end head is fixed to the bottom end of the rod body and has a larger diameter than the rod body. The end head and the rod body are wrapped with a polymer layer. The outer side of the polymer layer is in a burr shape. The end head is connected with a drill bit. The anchor rod can always maintain a certain resistance during the large deformation of surrounding rock and has a good supporting effect on the surrounding rock. However, the existing device still has some disadvantages in use. The existing anchor rod does not have a self-locking mechanism, so it needs to be fixed by an external buckle mechanism. However, the external fixing mechanism may not be completely embedded, which leads to the insufficient fixation of the anchor rod. Therefore, the present application provides a rock anchor with a self-locking structure to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a rock anchor with a self-locking structure to solve the problems in the background art.

[0005] The present application adopts the following technical solutions:

[0006] The rock anchor with a self-locking structure comprises a fixed head, a plurality of unfolding assemblies are installed on the outer surface of the fixed head, a reinforcing assembly is installed on the outer surface of each unfolding assembly, a pouring assembly is connected to the right end of the fixed head through a clamping assembly, an anchor rod body is installed in the pouring assembly, a threaded rod is installed on the left end of the anchor rod body, the left end of the threaded rod is threadedly connected to the right end of the fixed head, a conical rod is installed on the left end of the threaded rod, and a limiting assembly is installed on the left end of the conical rod.

[0007] Preferably, each unfolding assembly comprises an installation slot, each installation slot is located on the outer surface of the fixed head, and a turnover top plate is installed in each installation slot through a pin shaft.

[0008] Preferably, each reinforcing assembly comprises a wear plate, each wear plate is located on the outer surface of the turnover top plate, and a plurality of anti-skid barb particles are installed on the outer surface of each wear plate.

[0009] Preferably, the pouring assembly comprises a pouring cylinder, a fixed nut is mounted on the outer surface of the pouring cylinder, and a pouring pipe is mounted in the pouring cylinder.

[0010] Preferably, the clamping assembly comprises a connecting cylinder and a plurality of clamping grooves, the connecting cylinder is located at the right end of the fixed head, a plurality of clamping plates are mounted on the outer surface of the connecting cylinder, each clamping groove is located on the inner wall of the pouring cylinder, and each clamping plate is matched with a clamping groove.

[0011] Preferably, the limiting assembly comprises a limiting groove and a baffle, the limiting groove is located on the inner wall of the fixed head, and the baffle is located at the left end of the conical rod and is in sliding connection with the limiting groove.

[0012] The above at least one technical scheme adopted by the embodiment of the present application can achieve the following beneficial effects:

[0013] The utility model discloses a rock anchor rod with self-locking structure, through installing a plurality of unfolding assemblies on the outer surface of the fixed head, in the process of installation, the rotation of the threaded rod can drive the conical rod to move to the right, so that the turnover top plate in the unfolding assembly can be stretched out, and the fixed head can be fixed in the anchor rod pit groove, therefore, the device effectively solves the problem that the internal part of the existing device lacks a self-locking mechanism, and the anchor rod is not firm enough. ACCURACY

[0014] The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, illustrate certain illustrative embodiments of the present application and assist in explaining the present application. In the drawings:

[0015] Figure 1 Fig. 1 is a perspective view of a rock anchor rod with a self-locking structure according to the present application;

[0016] Figure 2 Fig. 2 is a front view of the rock anchor rod with a self-locking structure according to the present application;

[0017] Figure 3 Fig. 3 is a side view of a pouring cylinder of the rock anchor rod with a self-locking structure according to the present application;

[0018] Figure 4 Fig. 4 is a perspective view of an anchor rod body of the rock anchor rod with a self-locking structure according to the present application.

[0019] In the diagram: 1. Fixed head; 2. Unfolding assembly; 3. Reinforcing assembly; 4. Casting assembly; 5. Limiting assembly; 6. Snap-fit ​​assembly; 7. Mounting groove; 8. Wear-resistant plate; 9. Anti-slip barb particles; 10. Grouting cylinder; 11. Fixing nut; 12. Grouting pipe; 13. Baffle; 14. Tilting top plate; 15. Limiting groove; 16. Tapered rod; 17. Threaded rod; 18. Anchor bolt body; 19. Connecting cylinder; 20. Clamping plate; 21. Clamping groove. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0022] Please see Figures 1-4 This utility model provides a technical solution for a rock anchor bolt with a self-locking structure:

[0023] A rock anchor bolt with a self-locking structure includes a fixing head 1. Multiple deployable components 2 are mounted on the outer surface of the fixing head 1. Each deployable component 2 has a reinforcing component 3 mounted on its outer surface. The right end of the fixing head 1 is connected to a casting component 4 via a snap-fit ​​component 6. An anchor bolt body 18 is installed inside the casting component 4. A threaded rod 17 is mounted on the left end of the anchor bolt body 18. The left end of the threaded rod 17 is threadedly connected to the right end of the fixing head 1. A tapered rod 16 is mounted on the left end of the threaded rod 17, and a limit component 5 is mounted on the left end of the tapered rod 16. Specifically… The inner wall of the right end of the fixing head 1 is provided with a threaded groove. The threaded rod 17 is threadedly connected to the right end of the fixing head 1 through the threaded groove. By rotating the threaded rod 17, the anchor body 18 and the tapered rod 16 can be moved to the right, thereby allowing multiple unfolding components 2 to be pushed out. The main materials for rock anchor casting include cement grout and resin materials. Cement grout is a commonly used casting material. Its main components include cement, water and additives. Resin materials such as polyester resin and curing agent form a dense gel through cross-linking reaction, which has good bonding properties.

[0024] In this embodiment, each unfolding assembly 2 comprises a mounting groove 7, each mounting groove 7 is located on the outer surface of the fixed head 1, and each mounting groove 7 is internally mounted with a turnover top plate 14 through a pin shaft; each reinforcing assembly 3 comprises a wear plate 8, each wear plate 8 is located on the outer surface of the turnover top plate 14, and the outer surface of each wear plate 8 is mounted with a plurality of anti-skid barb particles 9; specifically, the turnover top plate 14 can be pushed out by the tapered rod 16 during use, thereby being supported by the inner wall of the groove to ensure the firmness of the device, and the outer surface of each turnover top plate 14 is mounted with anti-skid barb particles 9 to increase the friction between each turnover top plate 14 and the inner wall of the groove.

[0025] In this embodiment, the pouring assembly 4 comprises a grouting cylinder 10, the outer surface of the grouting cylinder 10 is mounted with a fixed nut 11, and the inside of the grouting cylinder 10 is mounted with a grouting pipe 12; the clamping assembly 6 comprises a connecting cylinder 19 and a plurality of clamping grooves 21, the connecting cylinder 19 is located at the right end of the fixed head 1, the outer surface of the connecting cylinder 19 is mounted with a plurality of clamping plates 20, each clamping groove 21 is located on the inner wall of the grouting cylinder 10, and each clamping plate 20 is matched with the clamping groove 21; the limiting assembly 5 comprises a limiting groove 15 and a baffle 13, the limiting groove 15 is located on the inner wall of the fixed head 1, the baffle 13 is located at the left end of the tapered rod 16, and the baffle 13 is slidably connected with the limiting groove 15; specifically, the worker uses a clamping tool to clamp the fixed nut 11, and under the action of the clamping groove 21 and the clamping plate 20, the fixed head 1 can be fixed to prevent the fixed head 1 from rotating synchronously with the anchor rod body 18, wherein the baffle 13 slides in the limiting groove 15 to prevent the anchor rod body 18 from completely separating from the fixed head 1, and wherein the anchor rod body 18 is a component for reinforcing rock, which mainly functions to fix the rock in a stable stratum through tension transmission to prevent the rock from loosening or falling off, and the rock anchor is usually made of steel strand or high-strength steel wire bundle and the like, one end of which is connected with the engineering structure, and the other end of which penetrates into the stratum to form a tension member.

[0026] Working principle: when the rock anchor with self-locking structure is used, the user first opens a suitable groove on the outer surface of the rock by using the hole turning device, then the worker inserts the device into the groove, then the device is fixed by clamping the fixed nut 11, and the right end of the anchor rod body 18 is rotated, so that the tapered rod 16 in the device can move to the right under the action of the threaded rod 17 and the internal thread connection of the fixed head 1, thereby pushing out the plurality of unfolding assemblies 2, then the pouring slurry is injected into the groove through the grouting pipe 12, and at the same time the grouting cylinder 10 is slowly pulled out, and finally the anchor rod is used after the pouring slurry is dried.

[0027] The above merely provides an example of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application should be included in the scope of claims of the present application.

Claims

1. A rock bolt with a self-locking structure, comprising a fixing head (1), characterized in that: The outer surface of the fixed head (1) is provided with a plurality of unfolding assemblies (2), the outer surface of each unfolding assembly (2) is provided with a reinforcing assembly (3), the right end of the fixed head (1) is connected with a pouring assembly (4) through a clamping assembly (6), the inner portion of the pouring assembly (4) is provided with an anchor rod body (18), the left end of the anchor rod body (18) is provided with a threaded rod (17), the left end of the threaded rod (17) is threadedly connected with the right end of the fixed head (1), the left end of the threaded rod (17) is provided with a conical rod (16), and the left end of the conical rod (16) is provided with a limiting assembly (5).

2. A rock bolt with a self-locking structure according to claim 1, characterized in that: Each unfolding assembly (2) comprises an installation groove (7), and each installation groove (7) is located on the outer surface of the fixed head (1).

3. A rock bolt with a self-locking structure according to claim 1, characterized in that: Each reinforcing assembly (3) comprises a wear-resistant plate (8), and each wear-resistant plate (8) is located on the outer surface of the turnover top plate (14).

4. A rock bolt with a self-locking structure according to claim 1, characterized in that: The pouring assembly (4) comprises a grouting barrel (10), and the outer surface of the grouting barrel (10) is provided with a fixing nut (11).

5. A rock bolt with a self-locking structure according to claim 1, characterized in that: The clamping assembly (6) comprises a connecting barrel (19) and a plurality of clamping grooves (21), the connecting barrel (19) is located at the right end of the fixed head (1), the outer surface of the connecting barrel (19) is provided with a plurality of clamping plates (20), each clamping groove (21) is located on the inner wall of the grouting barrel (10), and each clamping plate (20) is matched with the clamping groove (21).

6. A rock bolt with a self-locking structure according to claim 1, characterized in that: The limiting assembly (5) comprises a limiting groove (15) and a baffle (13), the limiting groove (15) is located on the inner wall of the fixed head (1), the baffle (13) is located at the left end of the conical rod (16), and the baffle (13) is in sliding connection with the limiting groove (15).

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