CN220248130U - Anchor rod for mining - Google Patents

Abstract

The utility model discloses an anchor rod for mining, which comprises two rod bodies, wherein an outer hexagonal bidirectional bolt is connected between the two rod bodies in a threaded manner, a limit column is inserted between the two rod bodies, a cylinder body is fixedly arranged at one end, away from each other, of each of the two rod bodies, and a positioning component for fixing the rod body is arranged inside the cylinder body. When the anchor rod is used, a constructor places the anchor rod in the drilled hole, the two cylinders are driven to move away from each other through the rod bodies at the two ends of the outer hexagonal bidirectional bolt, when the ejector rod is propped against the top wall of the hole, the outer hexagonal bidirectional bolt is continuously rotated, so that the sliding groove on the surface of the ejector rod is propped against the wedge-shaped angle bottom surface of the anchor rod, the anchor rod can be propped against the side wall of the hole, the anchor rod is stably fixed in the hole, when the constructor is re-injected with cement paste, the movement of the anchor rod is not caused by the flow of cement paste, the anchor rod is not loosened or inclined, and the safety of subsequent construction is greatly improved.

Description

Anchor rod for mining

Technical Field

The utility model relates to the technical field of anchor rods, in particular to an anchor rod for mining.

Background

The existing anchor rod is used for reinforcing the surrounding rock of a roadway together, so that the surrounding rock supports the anchor rod, the existing anchor rod is not only used for mines, but also used for reinforcing side slopes, tunnels and dam bodies in engineering technology, the anchor rod is used as a tension member penetrating into a stratum, one end of the anchor rod is connected with an engineering structure, and the other end of the anchor rod penetrates into the stratum, so that the phenomenon of preventing the side slopes from sliding down is achieved. In the field of geotechnical engineering construction, a rock anchor rod is one of important measures for supporting surrounding rocks, the anchor rod is the most basic component part of roadway support in contemporary coal mines, the surrounding rocks of the roadway are reinforced by the anchor rod, the surrounding rocks support the anchor rod, the anchor rod is not only used for mines, but also used in engineering technology for reinforcing slopes, tunnels and dam bodies, the anchor rod is used as a tension member penetrating into a stratum, one end of the anchor rod is connected with an engineering structure, the other end of the anchor rod penetrates into the stratum, the whole anchor rod is divided into a free section and an anchoring section, and the free section refers to an area for transmitting tension at the anchor rod head to an anchoring body and has the function of applying prestress to the anchor rod.

In the publication CN218493619U, a mining bolt is proposed. The mining anchor rod comprises a first anchor rod, a connecting pipe is welded at the output end of the first anchor rod, spline tooth blocks are distributed on the outer wall of the connecting pipe at equal intervals, a second anchor rod is sleeved on the outer wall of the connecting pipe, a spline groove is formed in the second anchor rod and is connected with the spline tooth blocks in a spline mode, a limit pipe is arranged on the outer wall circumference array of the second anchor rod, a stop rod is arranged in the limit pipe in a sliding mode in a penetrating mode, the stop rod penetrates through the second anchor rod to be located between the spline tooth blocks in a penetrating mode, a spring is wrapped on the outer wall of the stop rod and located between the second anchor rod and the limit pipe. According to the utility model, through the first anchor rod, the connecting pipe, the spline tooth block, the second anchor rod, the limiting pipe, the spline groove, the stop lever and the spring, the problem that the length of the anchor rod cannot be adjusted according to the needs due to the fact that the length of the existing anchor rod is fixed is effectively avoided, the anchor rod length can be adjusted according to the needs by a user, the construction cost is saved, and the construction period is shortened.

In the above patent, make the stock can adjust length through adjustment mechanism, because the stock needs to fix in the hole that beats in advance inside, then pour into cement into to the hole inside, the stock fixed mode in above patent is simple, when pouring into cement slurry to the hole inside, the flow of cement slurry drives the stock easily and removes to make the stock become flexible, slope, unable stable fix in the hole, lead to the stock unable normal use, bring the potential safety hazard for later stage construction.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a mining anchor rod.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides an anchor rod for mining, includes two body of rod, two threaded connection has outer hexagonal bi-directional bolt between the body of rod, two insert between the body of rod is equipped with spacing post, two the equal fixed mounting of one end that the body of rod kept away from each other has the barrel, the inside of barrel is equipped with the locating component of fixed body of rod, makes two body of rod reverse movement through outer hexagonal bi-directional bolt.

As a further scheme of the utility model, the positioning assembly comprises a push rod which is slidably arranged in the cylinder body, the push rod is of a conical structure, a plurality of anchors are inserted in the outer surface of the cylinder body at equal intervals, the anchors are slidably arranged with the cylinder body, and the anchors and the cylinder body are arranged at a certain angle, so that the anchors can bear a certain axial force.

As a further scheme of the utility model, a plurality of guide rails are fixedly arranged on the outer surface of the ejector rod at equal intervals, a plurality of sliding grooves are formed on the outer surface of the ejector rod at equal intervals, and the end parts of the anchor nails are slidably arranged on the inner walls of the sliding grooves.

As a further scheme of the utility model, the bottom wall of the cylinder is fixedly provided with a spring, the spring is arranged between the cylinder and the ejector rod, and the ejector rod is positioned at the end part of the rod body when not in use through the spring.

As a further scheme of the utility model, the bottom of the anchor is provided with a wedge-shaped angle matched with the chute, the top of the anchor is provided with a non-slip protrusion, and the non-slip protrusion further improves the stability of the anchor.

As a further scheme of the utility model, the inner wall of the cylinder body is provided with a guide groove matched with the guide rail, and the guide rail is slidably arranged with the inner wall of the guide groove.

The beneficial effects of the utility model are as follows:

when using the stock, constructor places the stock in the hole of beating, through rotating outer hexagonal bi-directional bolt, the body of rod that makes outer hexagonal bi-directional bolt both ends drives two barrels and keeps away from each other and remove, make the barrel drive the ejector pin motion, when the roof of ejector pin withstands the hole, continue to rotate outer hexagonal bi-directional bolt, make the inner wall of ejector pin relative barrel slide, the spout through the ejector pin surface withstands the wedge angle bottom surface of anchor, make the anchor can withhold the lateral wall of hole, thereby fix the stock stable inside the hole, when constructor reinjects cement paste, the flow of cement paste can not lead to the stock to remove, the stock can not take place to become flexible, the slope, the security of follow-up construction has been promoted greatly.

Drawings

Fig. 1 is a schematic view of the overall structure of a mining bolt according to the present utility model;

FIG. 2 is a schematic illustration of an anchor for a mining bolt according to the present utility model;

FIG. 3 is a schematic illustration of a roof bolt for mining according to the present utility model;

FIG. 4 is a schematic cross-sectional view of a cylinder of a mining bolt according to the present utility model;

fig. 5 is a schematic view of an outer hexagonal bidirectional bolt of a mining anchor rod according to the present utility model.

In the figure: 1. a rod body; 2. an outer hexagonal bidirectional bolt; 3. a limit column; 4. a cylinder; 5. a push rod; 6. anchoring nails; 7. a chute; 8. a guide rail; 9. a spring; 10. and a guide groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Referring to fig. 1 to 5, an anchor rod for mining comprises two rod bodies 1, wherein an outer hexagonal bidirectional bolt 2 is connected between the two rod bodies 1 in a threaded manner, a limit column 3 is inserted between the two rod bodies 1, one ends, away from each other, of the two rod bodies 1 are fixedly provided with a cylinder body 4, a positioning component for fixing the rod bodies 1 is arranged in the cylinder body 4, the two rod bodies 1 are reversely moved through the outer hexagonal bidirectional bolt 2, and the two rod bodies 1 are prevented from rotating through the limit column 3.

In this embodiment, the locating component includes slidable mounting in the ejector pin 5 of barrel 4 inside, and ejector pin 5 is the toper structure, and the surface equidistance penetration of barrel 4 is equipped with many anchors 6, and anchor 6 and barrel 4 slidable mounting, anchor 6 are certain angle setting with barrel 4, can make anchor 6 bear certain axial force.

In this embodiment, a plurality of guide rails 8 are fixedly installed on the outer surface of the ejector rod 5 at equal intervals, a plurality of sliding grooves 7 are formed in the outer surface of the ejector rod 5 at equal intervals, and the end portions of the anchor nails 6 are slidably installed on the inner walls of the sliding grooves 7.

In this embodiment, the bottom wall of the cylinder 4 is fixedly provided with a spring 9, the spring 9 is disposed between the cylinder 4 and the ejector rod 5, and the ejector rod 5 is located at the end of the rod body 1 when not in use through the spring 9.

In this embodiment, the bottom of the anchor 6 is provided with a wedge-shaped angle matching with the chute 7, and the top of the anchor 6 is provided with a non-slip protrusion, which further improves the stability of the anchor 6.

In this embodiment, the inner wall of the cylinder 4 is provided with a guide groove 10 matched with the guide rail 8, and the guide rail 8 is slidably mounted on the inner wall of the guide groove 10.

From the above description, it can be seen that the following technical effects are achieved by the embodiments of the present utility model: when the anchor rod is used, the ejector rod 5 is supported by the anchor rod through the spring 9 in the cylinder 4, the anchor rod cannot slide to the anchor rod 6, a constructor places the anchor rod into a hole which is drilled in advance, the rod bodies 1 at two ends of the outer hexagonal bidirectional bolt 2 drive the two cylinder bodies 4 to move away from each other through rotating the outer hexagonal bidirectional bolt 2, the cylinder bodies 4 drive the ejector rod 5 to move, when the ejector rod 5 abuts against the top wall of the hole, the outer hexagonal bidirectional bolt 2 continues to rotate, the ejector rod 5 slides relative to the inner wall of the cylinder body 4, the sliding groove 7 on the outer surface of the ejector rod 5 abuts against the bottom surface of the wedge-shaped angle of the anchor rod 6, the anchor rod 6 can abut against the side wall of the hole, so that the anchor rod is stably fixed in the hole, the stability of the anchor rod is further increased by the anti-slip bump on the surface of the anchor rod 6, when cement paste is injected by the constructor, the anchor rod cannot be loosened and inclined, and the safety of subsequent construction is greatly improved.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. The utility model provides an anchor rod for mining, includes two body of rod (1), its characterized in that, two threaded connection has outer hexagonal bi-directional bolt (2) between body of rod (1), two insert between body of rod (1) spacing post (3), two the equal fixed mounting of one end that body of rod (1) kept away from each other has barrel (4), the inside of barrel (4) is equipped with the locating component of fixed body of rod (1).

2. A mining bolt according to claim 1, wherein the positioning assembly comprises a push rod (5) slidably mounted in the barrel (4), the push rod (5) is of a conical structure, a plurality of anchors (6) are inserted through the outer surface of the barrel (4) at equal intervals, and the anchors (6) are slidably mounted with the barrel (4).

3. A mining bolt according to claim 2, characterized in that the outer surface of the ejector rod (5) is fixedly provided with a plurality of guide rails (8) at equal intervals, the outer surface of the ejector rod (5) is provided with a plurality of sliding grooves (7) at equal intervals, and the end parts of the anchor bolts (6) are slidably arranged with the inner walls of the sliding grooves (7).

4. A mining bolt according to claim 2, characterized in that the bottom wall of the cylinder (4) is fixedly provided with a spring (9), the spring (9) being arranged between the cylinder (4) and the roof bar (5).

5. A mining bolt according to claim 2, wherein the bottom of the anchor (6) is provided with a wedge angle matching the chute (7), and the top of the anchor (6) is provided with a stud.

6. A mining bolt according to claim 2, characterized in that the inner wall of the cylinder (4) is provided with a guide channel (10) matching the guide rail (8), the guide rail (8) being slidably mounted with the inner wall of the guide channel (10).