CN220869450U

CN220869450U - Mining combined anchor rod

Info

Publication number: CN220869450U
Application number: CN202322849467.0U
Authority: CN
Inventors: 郭培然
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-10-24
Filing date: 2023-10-24
Publication date: 2024-04-30
Anticipated expiration: 2033-10-24

Abstract

The utility model relates to a mining combined anchor rod, which comprises an anchor rod main body, wherein the outer side of the anchor rod main body is in threaded connection with a sleeve, the outer side of the sleeve is fixedly connected with a backing plate, and the left side of the backing plate is fixedly connected with a grout stop plug; the external thread has been seted up to telescopic outside, the outside threaded connection of external thread has the roating seat, the left side swing joint of roating seat has the connecting seat. According to the mining combined anchor rod, through the cooperation between the sleeve and the anchor rod main body, the grout stop plug and the backing plate can block an anchor hole of the mining combined anchor rod, after the grouting main body is blocked, the handle drives the rotating seat to rotate, under the cooperation of external threads, the connecting seat moves in position and synchronously drives the inserted rod to be inserted into the inner side of the wall body, the backing plate of the mining combined anchor rod is limited and fixed, and the anchor rod main body is not easy to push out during grouting; through set up the exhaust hole at the lateral wall of stopping the thick liquid stopper to during the slip casting, the gas in the anchor eye accessible exhaust hole is discharged, and the foam-rubber cushion of setting can block its thick liquid, avoids thick liquid discharge.

Description

Mining combined anchor rod

Technical Field

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

Background

The coal yield of China is nearly 40 hundred million tons, and is more than 50% of the world coal yield, along with the expansion of the mining scale, the mining depth of a mine is increased year by year, the geological condition is deteriorated, the ground stress is increased, the roadway support is more and more difficult, the deformation of the roadway supported by the traditional anchor net spraying or frame shed is large, the roadway needs to be repaired for many times, the supporting and maintaining cost is high, and especially, the roadway support and maintenance in soft rock, high-stress areas and broken bands are more difficult, and the anchor injection support is one of the effective methods for supporting and reinforcing under complex and difficult conditions.

When the combined anchor rod is used, a grouting pipe is connected to a grouting hole of the hollow anchor rod body, cement slurry flows into the anchor hole from a grouting hole on the connecting sleeve after flowing through a hollow inner hole of the hollow anchor rod body from the grouting hole, and cement slurry in the anchor hole fills from outside to inside, so that the anchor rod is finally formed;

However, because a gap exists between the hollow anchor rod body and the anchor hole, slurry can enter the anchor hole through a hollow pipeline of the hollow anchor rod body during grouting to fill the gap between the anchor hole and the hollow anchor rod body, so that a support system is formed, but if grouting pressure is too high or grouting speed is too high, the slurry can push out the gap between the hollow anchor rod body and the anchor hole, so that the grouting effect is poor.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides the mining combined anchor rod, which has the advantages that the anchor rod can be stably fixed at the outer side of an anchor hole and is not easy to push out, gas in the anchor hole can be discharged, and the like, and solves the problems that the grouting pressure is too high or the grouting speed is too high, and slurry can push out a gap between a hollow anchor rod body and the anchor hole, so that the grouting effect is poor.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the mining combined anchor rod comprises an anchor rod main body, wherein a sleeve is connected to the outer side of the anchor rod main body in a threaded manner, a backing plate is fixedly connected to the outer side of the sleeve, and a grout stop plug is fixedly connected to the left side of the backing plate;

external screw threads are arranged on the outer side of the sleeve, a rotating seat is connected with the external screw threads, a connecting seat is movably connected to the left side of the rotating seat, and an inserting rod is fixedly connected to one end, far away from the rotating seat, of the connecting seat.

Further, the stock main part is formed by first stock, drill bit, adapter sleeve and second stock combination, the left end fixedly connected with drill bit of first stock, the adapter sleeve is installed to the one end that the drill bit was kept away from to first stock, the second stock is installed to the other end of adapter sleeve.

Further, perforation and butt joint hole have been seted up to the surface of backing plate, the quantity of perforation is four, the butt joint hole is the arc shape, and the interval of perforation to backing plate central point is greater than the interval of butt joint hole to backing plate central point.

Further, the round table shape of the slurry stop plug, the mounting groove is formed in one end, close to the backing plate, of the slurry stop plug, the mounting groove is in a ring shape, and the mounting groove is in butt joint with the butt joint hole.

Further, the lateral wall of mounting groove has seted up the exhaust hole, and the quantity of exhaust hole is a plurality of, the inside wall fixedly connected with foam-rubber cushion of exhaust hole.

Further, the left side fixedly connected with ball of roating seat, the outside fixedly connected with handle of roating seat, the one end that the roating seat is close to the roating seat has been seted up and has been changeed the groove, the ball is at the inboard directional rotation in changeing the groove.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

According to the mining combined anchor rod, through the cooperation between the sleeve and the anchor rod main body, the grout stop plug and the backing plate can block an anchor hole of the mining combined anchor rod, after the grouting main body is blocked, the handle drives the rotating seat to rotate, under the cooperation of external threads, the connecting seat moves in position and synchronously drives the inserted rod to be inserted into the inner side of the wall body, and the backing plate of the mining combined anchor rod is limited and fixed, so that the anchor rod main body is not easy to push out during grouting; through set up the exhaust hole at the lateral wall of stopping the thick liquid stopper to during the slip casting, the gas in the anchor eye accessible exhaust hole is discharged, and the foam-rubber cushion of setting can block its thick liquid, avoids thick liquid discharge.

Drawings

FIG. 1 is a schematic diagram of the front view of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the structure of the present utility model;

fig. 3 is an enlarged schematic view of fig. 2 at a.

In the figure: 1. an anchor body; 101. a first anchor rod; 102. a drill bit; 103. connecting sleeves; 104. a second anchor rod; 2. a sleeve; 3. a backing plate; 301. perforating; 302. a butt joint hole; 4. a grout stop plug; 401. a mounting groove; 402. an exhaust hole; 403. a sponge cushion; 5. an external thread; 6. a rotating seat; 601. a ball; 602. a handle; 7. a connecting seat; 701. a rotary groove; 8. and a plunger.

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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the mining combined anchor rod in this embodiment includes an anchor rod main body 1, the anchor rod main body 1 is formed by combining a first anchor rod 101, a drill bit 102, a connecting sleeve 103 and a second anchor rod 104, the drill bit 102 is fixedly connected to the left end of the first anchor rod 101, the connecting sleeve 103 is installed at one end of the first anchor rod 101 far away from the drill bit 102, the second anchor rod 104 is installed at the other end of the connecting sleeve 103, and the first anchor rod 101 and the second anchor rod 104 are hollow.

The outer side of the anchor rod main body 1 is in threaded connection with a sleeve 2, the outer side of the sleeve 2 is fixedly connected with a backing plate 3, the surface of the backing plate 3 is provided with four through holes 301 and butt joint holes 302, the four through holes 301 are symmetrically distributed, the butt joint holes 302 are arc-shaped, and the distance from the through holes 301 to the center point of the backing plate 3 is larger than the distance from the butt joint holes 302 to the center point of the backing plate 3;

The left side fixedly connected with of backing plate 3 ends thick liquid stopper 4, it adopts metal material to end thick liquid stopper 4 to make, have good corrosion resistance and wearability, it can prevent that grouting material from leaking out from stock main part 1 tip to end thick liquid stopper 4, simultaneously also can prevent substances such as mud and water from getting into stock main part 1 inside, influence life and the security of stock, end that ends thick liquid stopper 4 is close to backing plate 3 has seted up mounting groove 401, mounting groove 401 is the ring shape, mounting groove 401 and butt joint hole 302 position butt joint, exhaust hole 402 has been seted up to the lateral wall of mounting groove 401, the quantity of exhaust hole 402 is a plurality of, the even distribution of a plurality of exhaust hole 402 is in the outside of stopping thick liquid stopper 4, the inside wall fixedly connected with foam-rubber cushion 403 of exhaust hole 402, foam-rubber cushion 403 can breathe freely, the thick liquid in the anchor hole can be avoided simultaneously to flow.

External screw thread 5 has been seted up in the outside of sleeve 2, external screw thread 5's outside threaded connection has roating seat 6, roating seat 6's left side fixedly connected with ball 601, ball 601's quantity is four, and be symmetric distribution, roating seat 6's outside fixedly connected with handle 602, roating seat 6's left side swing joint has connecting seat 7, roating seat 6's diameter is less than connecting seat 7's diameter, the through-hole has been seted up on connecting seat 7's surface, the through-hole is located connecting seat 7's intermediate position, roating seat 7 has been seted up near roating seat 6's one end, ball 601 is in the directional rotation of the inboard of roating seat 701, the roating seat 701 is the ring form, and the specification of roating seat 701 is greater than the specification of through-hole, connecting seat 7 is kept away from roating seat 6's one end fixedly connected with inserted bar 8, inserted bar 8's quantity is four, and inserted bar 8 is located the inboard of perforation 301.

In this embodiment, through the cooperation between sleeve 2 and inserted bar 8 to can carry out spacing fixed to its stock main part 1, when effectually prevented the slip casting, thick liquid is with its stock main part 1 release.

The working principle of the embodiment is as follows:

Through the cooperation between sleeve 2 and stock main part 1 to make its grout stop 4 and backing plate 3 can block up its anchor eye, after the jam, drive rotary seat 6 through handle 602 and rotate, under the cooperation of external screw thread 5, connecting seat 7 carries out the position movement, drives the inserted bar 8 in step and inserts the wall body inboard, carries out spacing fixed to its backing plate 3, thereby stock main part 1 is difficult to be pushed out when grouting; by arranging the vent holes 402 on the side wall of the grout stop plug 4, gas in the anchor holes can be discharged through the vent holes 402 during grouting, and the arranged foam-rubber cushion 403 can block the grout and avoid the discharge of the grout.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Mining combination stock, including stock main part (1), its characterized in that: the outer side of the anchor rod main body (1) is in threaded connection with a sleeve (2), the outer side of the sleeve (2) is fixedly connected with a base plate (3), and the left side of the base plate (3) is fixedly connected with a grout stop plug (4);

External screw threads (5) are arranged on the outer side of the sleeve (2), rotating seats (6) are connected with the external screw threads (5), connecting seats (7) are movably connected to the left sides of the rotating seats (6), and inserting rods (8) are fixedly connected to one ends, far away from the rotating seats (6), of the connecting seats (7).

2. The mine composite bolt of claim 1, wherein: the novel anchor rod is characterized in that the anchor rod main body (1) is formed by combining a first anchor rod (101), a drill bit (102), a connecting sleeve (103) and a second anchor rod (104), the drill bit (102) is fixedly connected to the left end of the first anchor rod (101), the connecting sleeve (103) is installed at one end, far away from the drill bit (102), of the first anchor rod (101), and the second anchor rod (104) is installed at the other end of the connecting sleeve (103).

3. The mine composite bolt of claim 1, wherein: the surface of the base plate (3) is provided with perforations (301) and butt joint holes (302), the number of the perforations (301) is four, the butt joint holes (302) are arc-shaped, and the distance from the perforations (301) to the center point of the base plate (3) is larger than the distance from the butt joint holes (302) to the center point of the base plate (3).

4. The mine composite bolt of claim 1, wherein: the grouting plug is in a round table shape, an installation groove (401) is formed in one end, close to the base plate (3), of the grouting plug (4), the installation groove (401) is in an annular shape, and the installation groove (401) is in butt joint with the butt joint hole (302).

5. The mine composite bolt of claim 4, wherein: the side wall of mounting groove (401) has seted up exhaust hole (402), and the quantity of exhaust hole (402) is a plurality of, the inside wall fixedly connected with foam-rubber cushion (403) of exhaust hole (402).

6. The mine composite bolt of claim 1, wherein: the left side fixedly connected with ball (601) of roating seat (6), the outside fixedly connected with handle (602) of roating seat (6), rotary groove (701) has been seted up to the one end that roating seat (6) is close to connecting seat (7), ball (601) are in the inside directional rotation of rotary groove (701).