Mine fault supporting anchor rod

Abstract

The utility model provides a mine fault supporting anchor rod, which relates to the technical field of anchor rods, and comprises an integral structure and an auxiliary structure, and the auxiliary structure is positioned at the center of the outer surface of one side of the integral structure; the overall structure comprises a hollow anchor rod, a sliding rod is fixedly connected to one side of the hollow anchor rod, the outer surface of the sliding rod is sleeved with a pressure spring, a clamping groove is formed in the center of the outer surface of the hollow anchor rod, and a disc is slidably connected to the center of the inner surface wall of the clamping groove; when the grouting device is used, external grout can be conveyed into the hollow anchor rod through the matching of the electromagnetic valve and the grouting pipe and can be discharged to the outside through the grouting holes, so that after grouting, the grout can be conveyed into the hollow anchor rod through the matching of the electric heating rods, and the grouting efficiency is greatly improved. The periphery of the hollow anchor rod can be heated, and the hollow anchor rod can be rapidly solidified when heated to the normal temperature state.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor bolts, in particular to an anchor bolt for supporting mine faults. Background Art

[0002] An anchor bolt is the most basic component for roadway support in contemporary coal mines. It reinforces the surrounding rock of the roadway, enabling the surrounding rock to support itself. Anchor bolts are not only used in mines but also in engineering technology for the main reinforcement of slopes, tunnels, and dams. As a tension member that penetrates deep into the ground, one end of the anchor bolt is connected to the engineering structure, and the other end penetrates deep into the ground. The entire anchor bolt is divided into a free section and an anchorage section. The free section refers to the area that transmits the tension at the anchor bolt head to the anchor body.

[0003] In the existing technology, such as a downhole surrounding rock fault grouting anchor bolt with the application number 201620366217.9, a hole is opened in the middle of the backing plate. One end of the hollow rod body is blocked, and the other end is placed on the backing plate and communicated with the hole in the middle of the backing plate. The anchor head is placed on one end of the hollow rod body. The connection hole groove is placed on the backing plate. The outer side of the hollow rod body is provided with a screw for screwing in. The liquid outlet inner tube is placed inside the hollow rod body, and one end passes through the hole in the backing plate. The connection port is placed on the other end of the liquid outlet inner tube. The sealing gasket ring is placed on the backing plate and sleeved on the outer wall of the liquid outlet inner tube. The spray port is placed on the liquid outlet inner tube. The hollow piston is sleeved outside the spray port and is located inside the hollow rod body. A plurality of liquid outlet holes are evenly distributed on the hollow rod body and communicated with the inner side of the hollow rod body. The protective cover is placed on the liquid outlet hole, and a notch is provided at the edge of the protective cover. One end of the pull column is placed on the protective cover, and the other end is placed on the outer wall of the liquid outlet inner tube through a fixing sleeve.

[0004] After the above application finishes grouting, the grouting liquid cannot be heated to assist its rapid solidification. Therefore, we propose an anchor bolt for supporting mine faults to solve the problems raised above. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problem in the existing technology that after grouting is completed, the grouting liquid cannot be heated to assist its rapid solidification, and an anchor bolt for supporting mine faults is proposed.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: An anchor bolt for supporting mine faults includes an overall structure and an auxiliary structure, and the auxiliary structure is located at the center of the outer surface of one side of the overall structure;

[0007] The overall structure includes a hollow anchor rod. One side of the hollow anchor rod is fixedly connected with a sliding rod. A compression spring is sleeved on the outer surface of the sliding rod. A clamping groove is opened at the center of the outer surface of the hollow anchor rod. A disc is slidably connected to the center of the inner wall of the clamping groove. A number of uniformly distributed electric heating rods are fixedly installed on the opposite sides of the two discs. Bolts are threadedly penetrated through the front and rear positions of the outer surface of the disc. A number of uniformly distributed grouting holes are opened on the outer surface of the hollow anchor rod.

[0008] Preferably, one end of the compression spring is fixedly connected with the inner surface of the hollow anchor rod, and the extending end of the sliding rod is slidably connected with the outer surface of the disc.

[0009] Preferably, a first threaded hole is opened at the position of the bolt on the outer surface of the disc. The inner wall of the first threaded hole is threadedly connected with the outer surface of the bolt. The outer surface of the bolt is threadedly penetrated through the inner surfaces of the hollow anchor rod and the clamping groove.

[0010] Preferably, a number of uniformly distributed expansion screws are threadedly penetrated through the outer surface of the hollow anchor rod. A second threaded hole is opened at the position of the expansion screw on the outer surface of the hollow anchor rod. The inner wall of the second threaded hole is threadedly connected with the outer surface of the expansion screw.

[0011] Preferably, a grouting pipe is penetrated through the front and rear positions of the outer surface of the hollow anchor rod. An electromagnetic valve is fixedly installed on the outer surface of the grouting pipe.

[0012] Preferably, the auxiliary structure includes an anchoring head. A buffer washer is fixedly connected to the center of the outer surface of the anchoring head.

[0013] Preferably, the outer surface of the anchoring head is fixedly connected with one side outer surface of the hollow anchor rod.

[0014] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0015] 1. In the present utility model, during use, the external slurry can be conveyed into the hollow anchor rod through the cooperation of the electromagnetic valve and the grouting pipe, and can be discharged to the outside through the grouting holes. Then, after grouting, through the cooperation of the electric heating rods, the surrounding of the hollow anchor rod can be heated, so that it can quickly solidify when heated to room temperature.

[0016] 2. In the present utility model, through the mutual cooperation of the first bolt and the first threaded hole, the disc can be restricted, so that it can be stably located in the clamping groove. At the same time, the disc and the electric heating rods are detachable. After being screwed out, the compression spring loses its restraint. Then, the disc and the electric heating rods can use the elasticity of the compression spring to be forcefully moved out, so as to facilitate the user to take out the disc and the electric heating rods, and enable the heating assembly to be pulled out for reuse. Description of the Drawings

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a mine fault support bolt proposed by the present utility model;

[0018] Figure 2 This is a three-dimensional structural schematic diagram of a hollow bolt, a grouting hole, an electromagnetic valve, and a grouting pipe;

[0019] Figure 3 This is a three-dimensional structural schematic diagram of a card slot and a first threaded hole;

[0020] Figure 4 This is a three-dimensional structural schematic diagram of a sliding rod, a compression spring, a disc, and an electric heating rod.

[0021] Legend: 1. Overall structure; 2. Auxiliary structure; 101. Hollow bolt; 102. Grouting hole; 103. Second threaded hole; 104. Grouting pipe; 105. Bolt; 106. Expansion bolt; 107. Electromagnetic valve; 108. Card slot; 109. First threaded hole; 110. Sliding rod; 111. Compression spring; 112. Disc; 113. Electric heating rod; 201. Anchor head; 202. Buffer washer. Detailed Embodiment

[0022] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the present utility model will be further described below in conjunction with the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0023] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0024] Embodiment 1, as Figures 1 - 4 shown, the mine fault support bolt includes an overall structure 1 and an auxiliary structure 2, and the auxiliary structure 2 is located at the center of the outer surface of one side of the overall structure 1; the overall structure 1 includes a hollow bolt 101, a sliding rod 110 is fixedly connected to one side of the hollow bolt 101, a compression spring 111 is sleeved on the outer surface of the sliding rod 110, a card slot 108 is opened at the center of the outer surface of the hollow bolt 101, a disc 112 is slidably connected to the center of the inner wall of the card slot 108, a plurality of uniformly distributed electric heating rods 113 are fixedly installed on the opposite sides of the two discs 112, bolts 105 are threadedly penetrated through the front and rear positions of the outer surface of the disc 112, and a plurality of uniformly distributed grouting holes 102 are opened on the outer surface of the hollow bolt 101.

[0025] The effect achieved by the entire Embodiment 1 is, asFigure 4 and Figure 3 As shown, after the bolt 105 is screwed out subsequently, it no longer restricts the disc 112. Then, the compression spring 111 also loses the restraining force, and the generated expansion force can cause the disc 112 to slide to the other side within the hollow anchor rod 101, and then it can be removed from the hollow anchor rod 101, so that the user can take it out. At the same time, it also realizes that the electric heating rod 113 and the disc 112 can be reused, reducing costs.

[0026] Example 2, as Figures 1 - 4 shown, one end of the compression spring 111 is fixedly connected to the inner surface of the hollow anchor rod 101, the protruding end of the sliding rod 110 is slidably connected to the outer surface of the disc 112, a first threaded hole 109 is provided on the outer surface of the disc 112 at the position of the bolt 105, the inner wall of the first threaded hole 109 is threadedly connected to the outer surface of the bolt 105, the outer surface of the bolt 105 threadedly penetrates the inner surfaces of the hollow anchor rod 101 and the card slot 108, and a plurality of evenly distributed expansion screws 106 are threadedly penetrated through the outer surface of the hollow anchor rod 101. A second threaded hole 103 is provided on the outer surface of the hollow anchor rod 101 at the position of the expansion screw 106, the inner wall of the second threaded hole 103 is threadedly connected to the outer surface of the expansion screw 106, a grouting pipe 104 is penetrated through the front and rear positions of the outer surface of the hollow anchor rod 101, a solenoid valve 107 is fixedly installed on the outer surface of the grouting pipe 104, and the auxiliary structure 2 includes an anchoring head 201. A buffer washer 202 is fixedly connected to the center of the outer surface of the anchoring head 201, and the outer surface of the anchoring head 201 is fixedly connected to one side outer surface of the hollow anchor rod 101.

[0027] The overall effect achieved by the entire Example 2 is that after grouting and solidification, through the cooperation of the second threaded hole 103 and the expansion screw 106, the stability of the whole during use can be improved, ensuring that it can be stably located in the drill hole in the rock. Through the mutual cooperation of the grouting pipe 104 and the solenoid valve 107, the slurry can be normally transported into the hollow anchor rod 101, and at the same time, it is also convenient for subsequent grouting replenishment operations. During the actual use process, the buffer washer 202 is located between the anchoring head 201 and the rock surface, so the friction between the anchoring head 201 and the rock can be reduced.

[0028] Working principle: During use, the hollow anchor bolt 101 is implanted into the rock mass through drilling. Then, through the cooperation of the grouting pipe 104 and the solenoid valve 107, grouting is carried out. The grout can be transported into the hollow anchor bolt 101 and flows out through the grouting holes 102 to fill the rock wall cracks. At the same time, the electric heating rod 113 starts to operate for heating, which can heat the surroundings of the hollow anchor bolt 101, enabling it to quickly solidify when heated to normal temperature. After solidification, the user unscrews the bolt 105. After unscrewing, the restriction on the disc 112 is removed, and its compression spring 111 is also released from restraint. Therefore, the disc 112 can utilize the expansion force of the compression spring 111 to slide to the other side within the hollow anchor bolt 101. After sliding to a certain position, part of it can enter the chute, so that the user can take it out, enabling the disc 112 and the electric heating rod 113 to be reused, which can reduce costs. After taking it out, the expansion screw 106 can be screwed into the corresponding second threaded hole 103 and finally transported into the rock mass to improve the overall stability during use.

[0029] The above is only a preferred embodiment of the present invention, and it is not a limitation to the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. Mine fault support anchor, characterized in that: include: An overall structure (1) and an auxiliary structure (2), wherein the auxiliary structure (2) is located at the center of an outer surface of one side of the overall structure (1); The overall structure (1) comprises a hollow anchor rod (101), one side of the hollow anchor rod (101) is fixedly connected to a slide rod (110), the outer surface of the slide rod (110) is sleeved with a compression spring (111), a slot (108) is provided at the center of the outer surface of the hollow anchor rod (101), a disc (112) is slidably connected at the center of the inner surface wall of the slot (108), a plurality of evenly distributed electric heating rods (113) are fixedly installed on opposite sides of two discs (112), bolts (105) are threadedly penetrated at the front and rear positions of the outer surface of the discs (112), and a plurality of evenly distributed grouting holes (102) are provided on the outer surface of the hollow anchor rod (101).

2. The mine fault support anchor according to claim 1, characterized in that: One end of the compression spring (111) is fixedly connected to the inner surface of the hollow anchor rod (101), and the extended end of the sliding rod (110) is slidably connected to the outer surface of the disc (112).

3. The mine fault support anchor according to claim 1, characterized in that: A first threaded hole (109) is formed on the outer surface of the disk (112) at the position of the bolt (105); the inner surface wall of the first threaded hole (109) is threadedly connected to the outer surface of the bolt (105); and the outer surface thread of the bolt (105) penetrates the inner surface of the hollow anchor rod (101) and the slot (108).

4. The mine fault support anchor according to claim 1, characterized in that: The outer surface of the hollow anchor rod (101) is threaded with a plurality of evenly distributed expansion screws (106), and the outer surface of the hollow anchor rod (101) is provided with a second threaded hole (103) at the position of the expansion screw (106), and the inner surface wall of the second threaded hole (103) is threadedly connected to the outer surface of the expansion screw (106).

5. The mine fault support anchor according to claim 1, characterized in that: A grouting pipe (104) is provided through the front and rear positions of the outer surface of the hollow anchor rod (101), and a solenoid valve (107) is fixedly mounted on the outer surface of the grouting pipe (104).

6. The mine fault support anchor according to claim 1, characterized in that: The auxiliary structure (2) comprises an anchor head (201), and a buffer washer (202) is fixedly connected at the center of the outer surface of the anchor head (201).

7. The mine fault support anchor according to claim 6, characterized in that: The outer surface of the anchoring head (201) is fixedly connected to the outer surface of one side of the hollow anchor rod (101).

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