CN219197372U

CN219197372U - Underground engineering roadway lets presses stock

Info

Publication number: CN219197372U
Application number: CN202223331257.4U
Authority: CN
Inventors: 刘炳乾; 寇志强
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-06-16
Anticipated expiration: 2032-12-13

Abstract

The utility model belongs to the technical field of mine hole reinforcement, in particular to an underground engineering roadway yielding anchor rod, which aims at the problem that the anchor rod is misplaced and slipped when in use due to the fact that no anti-slip device is arranged in the existing equipment. According to the utility model, the plurality of anti-drop rods are arranged on the periphery of the anchor rod, and the connecting friction force between the anchor rod and the mine hole is reinforced through the anti-drop rods when the anchor rod is used, so that the problem of dislocation and slipping of the anchor rod is avoided.

Description

Underground engineering roadway lets presses stock

Technical Field

The utility model relates to the technical field of mine hole reinforcement, in particular to a yielding anchor rod for an underground engineering roadway.

Background

The anchor rod is the most basic component part of roadway support in contemporary coal mines, and the anchor rod reinforces surrounding rocks of the roadway together so that the surrounding rocks support themselves. The anchor rod is not only used for mines, but also used for main reinforcement of slopes, tunnels and dam bodies in engineering technology. The anchor rod is used as tension member for deep stratum, and has one end connected to engineering structure and the other end deep stratum.

Through searching, the publication number is CN203867599U, the utility model relates to an underground engineering roadway yielding anchor rod, which comprises an anchor head, one or more yielding connectors, an elastic cushion block, a W-shaped steel belt, a backing plate, a yielding device and a handle nut, wherein the anchor head is arranged at the end part of the anchor rod and is used for anchoring the anchor rod in a rock mass, the elastic cushion block, the W-shaped steel belt, the backing plate, the yielding device and the handle nut are sequentially arranged on a net sheet at one end of the outer wall of the anchor rod, the yielding connectors are used for connecting left and right anchor rod bodies, the yielding connectors are hollow bodies, piston check blocks are arranged at the ends of the two connected anchor rod bodies in the hollow bodies, a spring is arranged between each piston check block and the end part of the hollow body of the connector, the yielding anchor rod adopts one or more yielding connectors, the yielding capacity of the connectors can be directly adjusted, and meanwhile, the pre-tightening capacity of the anchor rod can be adjusted, the yielding supporting capacity is adjusted, and the practicability is high.

The existing equipment has no anti-skid device, so that the problem that the anchor rod is misplaced and slipped when in use is solved, and therefore, the underground engineering roadway yielding anchor rod is provided for solving the problem.

Disclosure of Invention

The utility model aims to solve the defect of easy slipping, and provides a yielding anchor rod for an underground engineering roadway.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides an underground engineering roadway lets presses stock, includes the stock, a plurality of adjusting screw is installed through the screw thread to the week side symmetry slope equidistance of stock, and is a plurality of the anticreep pole has all been welded to adjusting screw's top one side, the screw thread has been seted up to outside one side of stock, the outside of stock just is located tight fixed plate has been cup jointed to the one end of screw thread, tight fixed plate is close to the one end week side uniform welding of anticreep pole has a plurality of tight inserts, the nut has been cup jointed to the outside of screw thread.

Preferably, the inside of stock runs through and is provided with the perfusion tube.

Preferably, the other end of the anchor rod is cast with a drilling head, and the cross section of the drilling head is isosceles triangle.

Preferably, one end of each of the plurality of anti-drop rods is provided with a plugging tip.

Preferably, the anchor rod is made of spheroidal graphite cast iron, and the adjusting screw rods and the anti-drop rods are made of alloy steel.

Preferably, the inside casting of filling tube has a plurality of spacing, a plurality of spacing height is 1 millimeter.

Preferably, both ends of the plurality of limiting strips extend to both ends of the perfusion tube.

Preferably, a plurality of salient points are uniformly cast on the outer part of the anchor rod.

In the utility model, the underground engineering roadway yielding anchor rod comprises the following components:

1. according to the utility model, the plurality of anti-drop rods are arranged on the periphery of the anchor rod, and the connecting friction force between the anchor rod and the mine hole is reinforced through the anti-drop rods when the anchor rod is used, so that the problem of dislocation and slipping of the anchor rod is avoided;

2. according to the utility model, the plurality of tight fixed insertion blocks are welded on the peripheral side of one side of the tight fixed plate, and are screwed by the nuts when in use, so that the tight fixed plate is pushed to move towards the inner wall of the mine hole, the plurality of tight fixed insertion blocks are tightly inserted into the inner wall of the mine hole, the connection friction force between the anchor rod and the mine hole is reinforced, the problems of dislocation and slipping of the anchor rod are avoided, and the installation stability is remarkably improved.

Drawings

FIG. 1 is a schematic diagram of a construction of a yielding anchor for an underground construction roadway according to the present utility model;

FIG. 2 is a schematic diagram of the construction of the A portion of the yielding anchor for an underground engineering roadway;

fig. 3 is a schematic diagram of the front structure of a yielding anchor for an underground engineering roadway.

In the figure: 1. a bolt; 2. adjusting a screw; 3. an anti-drop rod; 4. a thread; 5. a tightening plate; 6. tightly fixing the inserting block; 7. a nut; 8. a perfusion tube; 9. a drill bit.

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.

Referring to fig. 1-3, an underground engineering roadway lets presses stock, including stock 1, stock 1 week side symmetry slope equidistance is through screw thread installation a plurality of adjusting screw 2, and the anticreep pole 3 has all been welded to a plurality of adjusting screw 2's top one side, and screw thread 4 has been seted up to stock 1's outside one side, and the outside of stock 1 just is located screw thread 4's one end and has cup jointed tight fixed plate 5, and tight fixed plate 5 is close to the even welding of the one end week side of anticreep pole 3 and has had a plurality of tight inserts 6, and screw thread 4's outside has cup jointed nut 7.

In this embodiment, the anchor rod 1 is internally provided with a perfusion tube 8.

By adopting the scheme, through running through in the inside of stock 1 and being provided with filling pipe 8, after the installation is accomplished, pour into the inside of filling pipe 8 with the concrete, increase stock 1's antifatigue intensity, increase installation stability.

In this embodiment, the drill bit 9 is cast at the other end of the anchor rod 1, and the cross section of the drill bit 9 is isosceles triangle.

By adopting the scheme, the drilling head 9 is cast at the other end of the anchor rod 1, so that the connection between the anchor rod 1 and the drilling head 9 is stable, the installation stability is improved, and the anchor rod 1 is prevented from being broken.

In this embodiment, one end of each of the plurality of anti-drop rods 3 is provided with a plugging tip.

By adopting the scheme, the plugging tips are arranged at one ends of the anti-drop rods 3, and one ends of the anti-drop rods 3 are synchronously inserted into the inner wall of the mine hole after the installation is completed, so that the connection stability is improved, and the dislocation of the anchor rod 1 is avoided.

In the embodiment, the anchor rod 1 is made of ductile cast iron, and the adjusting screw rods 2 and the anti-drop rods 3 are made of alloy steel.

By adopting the scheme, the anchor rod 1 is made of the spheroidal graphite cast iron, so that the toughness of the anchor rod 1 is increased, the situation that the anchor rod 1 is broken is avoided when the anchor rod 1 encounters a large impact force, and the service life of the anchor rod 1 is prolonged.

In this embodiment, the inside casting of filling tube 8 has a plurality of spacing, and a plurality of spacing height are 1 millimeter, and the both ends of a plurality of spacing all extend to the both ends of filling tube 8.

By adopting the scheme, a plurality of limit bars are cast in the pouring tube 8, so that the connection stability between the interior of the pouring tube 8 and concrete is improved.

In this embodiment, a plurality of salient points are uniformly cast on the outer portion of the anchor rod 1.

By adopting the scheme, a plurality of salient points are uniformly cast outside the anchor rod 1, so that the friction force is increased between the outside of the anchor rod 1 and the inside of a hole which is punched in advance, and the slipping problem is avoided.

According to the utility model, when the anchor rod 1 is used, the anchor rod 1 is inserted into a pre-punched hole, the screw thread 4 is rotated through the rotating nut 7, so that the fastening plate 5 is pushed to approach the inner wall of the mine hole, the fastening insert block 6 is inserted into the inner wall of the mine hole, then the concrete is poured into the pouring pipe 8, the comprehensive performance of the anchor rod 1 is improved, when the mine hole collapses, the fastening insert blocks 6 are tightly inserted into the inner wall of the mine hole, the connection friction force between the anchor rod 1 and the mine hole is reinforced, the problem that the anchor rod 1 is misplaced and slipped is avoided, and the installation stability is remarkably improved.

Claims

1. The utility model provides a stock is let to underground engineering roadway, includes stock (1), its characterized in that, a plurality of adjusting screw (2) are installed through the screw thread to the week side symmetry slope equidistance of stock (1), a plurality of the top one side of adjusting screw (2) all is welded anticreep pole (3), screw thread (4) have been seted up to outside one side of stock (1), the outside of stock (1) just is located screw thread (4) one end has cup jointed tight fixed plate (5), tight fixed plate (5) are close to a plurality of tight fixed insertion blocks (6) of welding of one end week side of anticreep pole (3), nut (7) have been cup jointed to the outside of screw thread (4).

2. An underground works roadway yielding anchor as claimed in claim 1, wherein the anchor (1) is internally provided with a perfusion tube (8) extending therethrough.

3. The underground engineering roadway yielding anchor rod according to claim 1, wherein the other end of the anchor rod (1) is cast with a drilling head (9), and the cross section of the drilling head (9) is isosceles triangle.

4. The underground engineering roadway yielding anchor rod according to claim 1, wherein one end of each of the plurality of anti-drop rods (3) is provided with a plugging tip.

5. An underground engineering roadway yielding anchor as claimed in any one of claims 1-4, wherein said anchor (1) is made of ductile iron, and said adjusting screws (2) and said anti-drop rods (3) are made of alloy steel.

6. An underground engineering roadway yielding anchor as claimed in claim 2, wherein a plurality of limit bars are cast in the pouring tube (8), and the height of the limit bars is 1 mm.

7. An underground works roadway yielding anchor as claimed in claim 6, wherein the ends of the plurality of stop bars extend to the ends of the filling pipe (8).

8. The underground engineering roadway yielding anchor rod according to claim 1, wherein a plurality of protruding points are uniformly cast on the outer portion of the anchor rod (1).