CN213899025U

CN213899025U - Roadway support anchor rod

Info

Publication number: CN213899025U
Application number: CN202023268070.5U
Authority: CN
Inventors: 王亚军; 王海涛; 杜凯
Original assignee: Heilongjiang University of Science and Technology
Current assignee: Heilongjiang University of Science and Technology
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-08-06
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a roadway support anchor rod, which relates to the technical field of anchor rods and comprises a hollow pull rod, an anchor head and an anchoring body, wherein the pull rod is provided with external threads, the anchor head and the anchoring body are both positioned at two ends of the pull rod, and the anchoring body comprises a support plug; and a first expansion shell and a second expansion shell; first inflation shell and second inflation shell block are in on the pull rod, the one end that the pull rod is close to the stopper that props is connected with the cassette, still including getting rid of the mechanism prop the stopper card and go into when first inflation shell and second inflation shell, get rid of the mechanism and get rid of the cassette, the utility model discloses can prevent that downthehole ground of remaining from getting into hollow pull rod through the cassette when inserting in, insert the back that targets in place, get rid of the cassette through getting rid of the mechanism to accomplish the slip casting, thereby prevented that hollow pull rod from getting into the ground, improved the slip casting effect.

Description

Roadway support anchor rod

Technical Field

The utility model relates to an anchor rod technical field specifically is a tunnel support stock.

Background

The anchor rod is the most basic component of roadway support in the contemporary coal mine, and the anchor rod reinforces the surrounding rocks of the roadway together to support the surrounding rocks per se. The conventional anchor rod is not only used for mines, but also used in engineering technology for reinforcing main bodies of slopes, tunnels and dams. The anchor rod is used as a tension member penetrating into the 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.

At present, after the drilling jumbo has dug the hole to the wall of a well, then directly insert downthehole with hollow stock, insert the hole bottom after, then the pulling pull rod makes the vaulting pole prop the stopper and strut the expansion shell and realize anchor assembly's fixed, then accomplish the slip casting to the downthehole from hollow pull rod, this stock exists following not enough, because downthehole often can have the residue when drilling the drilling jumbo, the residue can be followed the stock bottom and got into hollow pull rod when inserting in the stock king hole, consequently, influence the slip casting effect, lead to there being the gap behind the downthehole slip casting, the shortcoming that tensile strength reduces, for this we propose a tunnel support stock and solve the aforesaid not enough.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tunnel support stock to solve how in the through-hole of the stock insertion wall of a well, the problem that the ground got into the cavity pull rod is remained in the mode hole.

In order to achieve the above object, the utility model provides a following technical scheme:

a roadway support anchor rod comprises a hollow pull rod, an anchor head and an anchoring body, wherein the pull rod is provided with external threads, the anchor head and the anchoring body are both positioned at two ends of the pull rod, and the anchoring body comprises a support plug; and a first expansion shell and a second expansion shell; the first expansion shell and the second expansion shell are clamped on the pull rod, one end, close to the support plug, of the pull rod is connected with the filter disc, and the filter disc removing device further comprises a removing mechanism, wherein when the support plug is clamped into the first expansion shell and the second expansion shell, the filter disc is removed by the removing mechanism.

As a preferred embodiment of the present invention: get rid of the mechanism and include the horizontal pole and open the dismantlement and connect and be in montant on the horizontal pole, montant bottom fixedly connected with push pedal, two spouts have been seted up on the pull rod, equal fixedly connected with round pin seat on first inflation shell and the second inflation shell, can dismantle on the round pin seat and be connected with the round pin axle, the horizontal pole both ends are passed the spout and are connected with the round pin rotation.

As a preferred embodiment of the present invention: the cross rod is provided with a screw hole, the upper end of the vertical rod is provided with a thread, and the vertical rod is screwed with the screw hole.

As a preferred embodiment of the present invention: the outer walls of the first expansion shell and the second expansion shell are fixedly connected with anti-skid protrusions.

As a preferred embodiment of the present invention: rubber bands are sleeved on the first expansion shell and the second expansion shell.

As a preferred embodiment of the present invention: the anchor head comprises a pedestal, a gasket and a fastening nut; wherein, be equipped with the through-hole on the pedestal, the aperture of through-hole is greater than the diameter of pull rod, the gasket lower extreme is curved, the arc department of gasket is located the through-hole, fastening nut connects with the external screw thread on the pull rod soon.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses can prevent through the cassette when inserting that downthehole ground that remains from getting into hollow pull rod, insert the back that targets in place, get rid of the cassette through getting rid of the mechanism to accomplish the slip casting, thereby prevented that hollow pull rod from getting into the ground, improved the slip casting effect.

Drawings

Fig. 1 is a first structural schematic diagram of a roadway support anchor rod of the invention;

fig. 2 is a structural schematic diagram of a roadway support anchor rod of the invention;

fig. 3 is a partial structural schematic view of a roadway support anchor rod of the invention;

fig. 4 is a schematic view of a partial structure of a roadway support anchor rod of the invention;

fig. 5 is a schematic view showing a part of the structure of a roadway support anchor rod of the invention.

In the figure: 1. a pull rod; 11. a pedestal; 111. a through hole; 12. fastening a nut; 121. a gasket; 13. an external thread; 14. supporting and plugging; 15. a chute; 2. a first expansion shell; 3. a second expansion shell; 31. anti-skid projections; 32. a rubber band; 33. a pin boss; 34. a cross bar; 35. a vertical rod; 36. pushing the plate; 4. a filter disc.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an embodiment: a roadway support anchor rod comprises a hollow pull rod 1, an anchor head and an anchoring body, wherein the pull rod 1 is provided with external threads 13, the anchor head and the anchoring body are both positioned at two ends of the pull rod 1, and the anchoring body comprises a support plug 14; and a first expansion shell 2 and a second expansion shell 3; first expansion shell 2 and the 3 block of second expansion shell are on pull rod 1, and pull rod 1 is close to the one end that props stopper 14 and is connected with cassette 4, still including getting rid of the mechanism, when propping stopper 14 card go into first expansion shell 2 and the second expansion shell 3 in, get rid of the mechanism and get rid of cassette 4, the impact force when getting rid of the mechanism also usable slip casting gets rid of cassette 4, thereby cassette 4 can adopt the mode of pasting to connect the tip at pull rod 1 and be convenient for take off.

Referring to fig. 1-5, the present invention provides an embodiment: the removing mechanism comprises a cross rod 34 and a vertical rod 35 detachably connected to the cross rod 34, a push plate 36 is fixedly connected to the bottom of the vertical rod 35, two sliding grooves 15 are formed in the pull rod 1, a pin seat 33 is fixedly connected to each of the first expansion shell 2 and the second expansion shell 3, a pin shaft is detachably connected to the pin seat 33, the pin shaft is fixed to the pin seat 33 through a screw, so that the cross rod 34 can be installed conveniently, two ends of the cross rod 34 penetrate through the sliding grooves 15 to be rotatably connected with the pin shaft, when the anchor rod is inserted into a hole, the support plug 14 is not in contact with the first expansion shell 2 and the second expansion shell 3, when the anchor rod is inserted in place, the pull rod 1 is pulled reversely, the pull rod 1 drives the support plug 14 to be inserted into the first expansion shell 2 and the second expansion shell 3 to be propped open, so that the first expansion shell 2 and the second expansion shell 3 are unfolded towards two sides by taking the pin shaft as a center, and then the support plug 14 is propped against the hole wall to realize fixation, the pull rod 1 drives the support plug 14 to move relative to the first expansion shell 2 and the second expansion shell 3, and then the cross rod 34 between the two pin seats 33 drives the vertical rod 35 to move downwards, and then the push plate 36 is propped against the filter sheet 4 to remove the filter sheet.

Referring to fig. 1-5, the present invention provides an embodiment: the cross rod 34 is provided with a screw hole, the upper end of the vertical rod 35 is provided with a thread, and the vertical rod 35 is screwed with the screw hole.

Referring to fig. 1-5, the present invention provides an embodiment: the equal fixedly connected with antiskid arch 31 of first expansion shell 2 and the 3 outer walls of second expansion shell plays the antiskid effect.

Referring to fig. 1-5, the present invention provides an embodiment: rubber band 32 is sleeved on the first expansion shell 2 and the second expansion shell 3, and the rubber band 32 has a pre-tensioning effect, so that when the support plug 14 is separated from the first expansion shell 2 and the second expansion shell 3, the first expansion shell 2 and the second expansion shell 3 are tightly attached to the pull rod 1.

Referring to fig. 3, the present invention provides an embodiment: the anchor head comprises a pedestal 11, a gasket 121 and a fastening nut 12; wherein, be equipped with through-hole 111 on the pedestal 11, the aperture of through-hole 111 is greater than the diameter of pull rod 1, gasket 121 lower extreme is curved, gasket 121's arc department is located through-hole 111, fastening nut 12 connects soon with the external screw thread 13 on the pull rod 1, through setting up gasket 121 bottom into curved, thereby when fastening nut 12 locks, gasket 121's arc department can carry out the angular deviation chucking with through-hole 111's inner wall, thereby make pedestal 11 and the wall of a well closely laminate.

The utility model discloses at first, drill the drill jumbo to the wall of a well trompil, then after the stock inserts targets in place, reverse pulling pull rod 1, and then pull rod 1 drives and props stopper 14 and inserts in first inflation shell 2 and the second inflation shell 3, prop it open, thereby first inflation shell 2 and the second inflation shell 3 expand to both sides with the round pin axle as the center, and then offset with the pore wall and realize fixing, and pull rod 1 drives and props stopper 14 and moves relative to first inflation shell 2 and second inflation shell 3, and then horizontal pole 34 between two key holders 33 drives montant 35 and moves down, and then offsets with cassette 4 through push pedal 36 and gets rid of it, thereby can prevent the remaining ground in the hole to get into hollow pull rod 1 through cassette 4 when inserting, insert the back that targets in place, get rid of cassette 4 through getting rid of the mechanism, thereby accomplish the slip casting, thereby prevented hollow pull rod 1 from getting into the ground, the grouting effect is improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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.

Claims

1. The utility model provides a roadway support stock, includes hollow pull rod (1) to and anchor head and anchor body, be equipped with external screw thread (13) on pull rod (1), the anchor head with the anchor body all is located the both ends of pull rod (1), its characterized in that: the anchor body comprises

A support plug (14); and a first expansion shell (2) and a second expansion shell (3);

first inflation shell (2) and second inflation shell (3) block are in on pull rod (1), the one end that pull rod (1) is close to and props stopper (14) is connected with cassette (4), still including removing the mechanism prop stopper (14) card go into first inflation shell (2) and second inflation shell (3) in the time, remove the mechanism and get rid of cassette (4).

2. A roadway support anchor as claimed in claim 1, wherein: get rid of the mechanism and include horizontal pole (34) and open and dismantle and connect and be in montant (35) on horizontal pole (34), montant (35) bottom fixedly connected with push pedal (36), two spout (15) have been seted up on pull rod (1), equal fixedly connected with round pin seat (33) on first inflation shell (2) and the second inflation shell (3), can dismantle on round pin seat (33) and be connected with the round pin axle, horizontal pole (34) both ends are passed spout (15) and are rotated with the round pin axle and be connected.

3. A roadway support anchor as claimed in claim 2, wherein: the cross rod (34) is provided with a screw hole, the upper end of the vertical rod (35) is provided with threads, and the vertical rod (35) is screwed with the screw hole threads.

4. A roadway support bolt as claimed in any one of claims 1 to 3, wherein: the outer walls of the first expansion shell (2) and the second expansion shell (3) are fixedly connected with anti-skid protrusions (31).

5. A roadway support bolt as claimed in any one of claims 1 to 3, wherein: rubber bands (32) are sleeved on the first expansion shell (2) and the second expansion shell (3).

6. A roadway support anchor as claimed in claim 1, wherein: the anchor head comprises a pedestal (11), a gasket (121) and a fastening nut (12);

wherein, be equipped with through-hole (111) on pedestal (11), the aperture of through-hole (111) is greater than the diameter of pull rod (1), gasket (121) lower extreme is curved, the arc department of gasket (121) is located through-hole (111), external screw thread (13) on fastening nut (12) and pull rod (1) connect soon.