CN212867605U

CN212867605U - High-strength prestressed anchor rod

Info

Publication number: CN212867605U
Application number: CN202021778394.0U
Authority: CN
Inventors: 刘立民; 张进鹏; 张晓明; 许可
Original assignee: Taian Ark Mining Technology Co ltd
Current assignee: Taian Ark Mining Technology Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-04-02
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses a high-strength prestressed anchor rod, including the anchor rod body, the top outer wall fixedly connected with anchor head of the anchor rod body, the position threaded connection that the outer wall of the anchor rod body is close to the bottom has the backing plate, the outer wall threaded connection of the anchor rod body has the nut, and the nut is located the below of backing plate, the equal fixedly connected with fixed axle in both sides of backing plate top outer wall, and the equal fixedly connected with backup pad of top outer wall of two fixed axles, the top outer wall fixedly connected with strengthening rib of backup pad, and the shape of strengthening rib is the wave, the top outer wall fixedly connected with guard plate of strengthening rib. The utility model discloses can prevent because the stock body receives great pressure and leads to the prestressed anchorage pole to receive wearing and tearing to cause the influence to the life of prestressed anchorage pole, can effectually disperse to the gravity to reduce the pressure that the stock body received, can prevent because pressure leads to the stock to take place not hard up, thereby cause the influence to the work of stock.

Description

High-strength prestressed anchor rod

Technical Field

The utility model relates to an anchor rod technical field especially relates to a high-strength prestressed anchor rod.

Background

The prestressed anchor rod consists of an anchor head, a rod body and a base plate, and certain pre-stress is applied to the surrounding rock through anchoring force generated by the anchor head so as to actively reinforce the surrounding rock.

Through retrieval, the patent with the Chinese patent authorization number of CN207904919U discloses a prestressed anchor rod, which comprises an anchor rod body, a bearing tray and a damping pad; one end of the anchor rod body is an anchoring section, and the other end of the anchor rod body can tightly press the damping pad on the supported body through the bearing tray; the damping pad comprises a shell, the shell is made of flexible materials, and the shell encloses an inner chamber and an outer chamber; the outer chamber and the inner chamber are separated by an annular wall; the inner chamber is filled with granular material; gaps of the granular materials in the outer chamber and the inner chamber are filled with viscous fluid; the annular wall is provided with a flow guide hole for communicating the inner chamber with the outer chamber, and the flow guide hole allows viscous fluid to pass through in two directions but blocks granular materials; an elastic rebound piece is also arranged in the inner cavity. The prestressed anchor rod in the above patent has the following disadvantages: the existing prestressed anchor is low in strength, so that when the existing prestressed anchor is subjected to high pressure, the prestressed anchor is possibly abraded, and the service life of the prestressed anchor is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a high-strength prestressed anchor rod.

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

the utility model provides a high-strength prestressed anchor rod, includes the stock body, the top outer wall fixedly connected with anchor head of the stock body, the position threaded connection that the outer wall of the stock body is close to the bottom has the backing plate, the outer wall threaded connection of the stock body has the nut, and the nut is located the below of backing plate, the equal fixedly connected with fixed axle in both sides of backing plate top outer wall, and the equal fixedly connected with backup pad of top outer wall of two fixed axles, the top outer wall fixedly connected with strengthening rib of backup pad, and the shape of strengthening rib is the wave, the top outer wall fixedly connected with guard plate of strengthening rib.

As a further aspect of the present invention: the two sides of the outer wall of the top of the anchor head are both connected with protective blocks through hinges, and the protective blocks and the anchor head are connected with a second spring through bolts.

As a further aspect of the present invention: the bottom outer wall fixedly connected with fixed block of backing plate, and the outer wall fixedly connected with a plurality of supporting shoes of fixed block.

As a further aspect of the present invention: the bottom outer wall fixedly connected with of fixed block has a plurality of first springs, and the bottom outer wall fixedly connected with fixed plate of first spring.

As a further aspect of the present invention: the outer wall of first spring has cup jointed the lag, and the lag is flexible material.

As a further aspect of the present invention: the outer wall fixedly connected with of backing plate is a plurality of arris boards, and the shape of arris board is the corrugate.

The utility model has the advantages that:

1. the anchor rod body can be protected through the arranged backing plate, the reinforcing ribs, the protective plate and the supporting plate, so that the strength of the anchor rod body is improved, and the prestressed anchor rod is prevented from being abraded due to the fact that the anchor rod body is subjected to larger pressure, and the service life of the prestressed anchor rod is prevented from being influenced;

2. through the arrangement of the first spring and the fixing plate, when the anchor rod body is stressed by pressure, the first spring can play a role in protecting the anchor rod body, so that the anchor rod body can effectively disperse gravity, and the pressure stressed on the anchor rod body is reduced;

3. through the arris board that sets up, can be convenient for fix the stock body to the work of stock prevents to lead to the stock to take place not hard up because pressure, thereby causes the influence to the work of stock.

Drawings

Fig. 1 is a front view schematically illustrating a high-strength prestressed anchor rod according to embodiment 1;

fig. 2 is a partial structural schematic view of a high-strength prestressed anchor rod proposed in embodiment 1;

fig. 3 is a schematic front view of a high-strength prestressed anchor rod according to embodiment 2.

In the figure: the anchor rod comprises an anchor rod body 1, a nut 2, a fixing plate 3, a first spring 4, a backing plate 5, a fixing shaft 6, a supporting plate 7, a reinforcing rib 8, a protective plate 9, an anchor head 10, a second spring 11, a protective block 12, a supporting block 13, a fixing block 14 and a ridge plate 15.

Detailed Description

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-2, a high-strength prestressed anchor rod, including the anchor rod body 1, there is anchor head 10 at the top outer wall of anchor rod body 1 through bolted connection, there is backing plate 5 at the position threaded connection that the outer wall of anchor rod body 1 is close to the bottom, the outer wall threaded connection of anchor rod body 1 has nut 2, and nut 2 is located the below of backing plate 5, there is fixed axle 6 both sides of the outer wall of 5 tops of backing plate through bolted connection, and the top outer wall of two fixed axles 6 all has backup pad 7 through bolted connection, the top outer wall of backup pad 7 has strengthening rib 8 through bolted connection, and the shape of strengthening rib 8 is the wave, there is guard plate 9 at the top outer wall of strengthening rib.

Wherein, the both sides of anchor head 10 top outer wall all have protection piece 12 through hinged joint, and through bolted connection second spring 11 between protection piece 12 and the anchor head 10, there is fixed block 14 bottom outer wall through bolted connection of backing plate 5, and there are a plurality of supporting shoes 13 on the outer wall of fixed block 14 through bolted connection, there are a plurality of first springs 4 bottom outer wall of fixed block 14 through bolted connection, and there is fixed plate 3 bottom outer wall of first spring 4 through bolted connection, the lag has been cup jointed to the outer wall of first spring 4, and the lag is flexible material.

The working principle is as follows: during the use, at first according to engineering design parameter, to the drilling treatment of being strutted the rock mass, after the drilling is accomplished, fix the stock 1 downtheholely, through backing plate 5, strengthening rib 8, guard plate 9 and backup pad 7, can protect the stock 1, so as to improve the intensity of the stock 1, prevent because the stock 1 receives great pressure and leads to the prestressed anchorage pole to receive wearing and tearing, thereby cause the influence to the life of prestressed anchorage pole, when the stock 1 receives pressure, can play the effect of protection to the stock 1 through first spring 4, thereby make the stock 1 can effectually disperse gravity, so as to reduce the pressure that the stock 1 received, can further protect the stock 1 through second spring 11 and protective block 12.

Example 2

Referring to fig. 3, a high-strength prestressed anchor rod, this embodiment compares in embodiment 1, and there are a plurality of arris boards 15 on the outer wall of backing plate 5 through bolted connection, and the shape of arris board 15 is the corrugate, can be convenient for fix the anchor rod body 1 to the work of anchor rod prevents to lead to the anchor rod to take place not hard up because pressure, thereby causes the influence to the work of anchor rod.

The working principle is as follows: when in use, firstly, according to engineering design parameters, the supported rock mass is drilled, after drilling is completed, the anchor rod body 1 is fixed in the hole, the anchor rod body 1 can be protected through the backing plate 5, the reinforcing ribs 8, the protection plate 9 and the support plate 7, so that the strength of the anchor rod body 1 is improved, the abrasion of the prestressed anchor rod caused by the larger pressure on the anchor rod body 1 is prevented, the service life of the prestressed anchor rod is influenced, when the anchor rod body 1 is under pressure, the first spring 4 can play a role of protection on the anchor rod body 1, so that the anchor rod body 1 can effectively disperse gravity, the pressure on the anchor rod body 1 is reduced, the anchor rod body 1 can be further protected through the second spring 11 and the protection block 12, the anchor rod body 1 can be conveniently fixed through the ridge plate 15, so that the anchor rod works, the anchor rod is prevented from loosening due to pressure, so that the anchor rod is prevented from being affected.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a high-strength prestressed anchor rod, includes the stock body (1), top outer wall fixedly connected with anchor head (10) of the stock body (1), the position threaded connection that the outer wall of the stock body (1) is close to the bottom has backing plate (5), the outer wall threaded connection of the stock body (1) has nut (2), and nut (2) are located the below of backing plate (5), its characterized in that, the equal fixedly connected with fixed axle (6) in both sides of backing plate (5) top outer wall, and the equal fixedly connected with backup pad (7) of the top outer wall of two fixed axles (6), the top outer wall fixedly connected with strengthening rib (8) of backup pad (7), and the shape of strengthening rib (8) is the wave, the top outer wall fixedly connected with guard plate (9) of strengthening rib (8).

2. A high-strength prestressed anchor rod according to claim 1, characterized in that both sides of the top outer wall of said anchor head (10) are connected with protective blocks (12) by hinges, and the protective blocks (12) are connected with the anchor head (10) by bolts to form a second spring (11).

3. A high-strength prestressed anchor rod according to claim 1, characterized in that the bottom outer wall of said backing plate (5) is fixedly connected with a fixing block (14), and the outer wall of the fixing block (14) is fixedly connected with a plurality of supporting blocks (13).

4. A high-strength prestressed anchor rod according to claim 3, characterized in that a plurality of first springs (4) are fixedly connected to the bottom outer wall of said fixing block (14), and a fixing plate (3) is fixedly connected to the bottom outer wall of said first springs (4).

5. A high-strength prestressed anchor rod according to claim 4, characterized in that the outer wall of said first spring (4) is sleeved with a protective sleeve, and said protective sleeve is made of flexible material.

6. A high-strength prestressed anchor rod according to claim 1 or 3, characterized in that a plurality of edge plates (15) are fixedly connected to the outer wall of said backing plate (5), and the shape of the edge plates (15) is corrugated.