Mine fault supporting anchor rod

Abstract

The utility model discloses a mine fault supporting anchor rod, which relates to the technical field of supporting anchor rods and comprises a hollow pipe and a grouting head, supporting rings are fixedly arranged at two ends of the hollow pipe, the grouting head is fixedly arranged on one side of each supporting ring, a plurality of openings are fixedly arranged on the pipe wall of the hollow pipe and the outer side wall of the grouting head, and a sliding pipe is slidably arranged on the outer side of each supporting ring. A circular scraper is fixedly arranged at one end of the sliding pipe. Slurry and impurities in a hole are removed through the sliding pipe and the circular scraping plate, the working efficiency is improved, the tool transportation strength is reduced, the working time is saved, the device is inserted into the hole so that the sliding pipe can be pulled out smoothly, the supporting rod and the inserting rod are used for fixing the grouting head, the sliding pipe and the circular scraping plate are pulled out, and the grouting head can be fixed through the supporting rod and the inserting rod. Impurities in a hole can be cleaned, normal work of the grouting head and the hollow pipe cannot be affected, the anchor rod and the cleaning device are integrated, working time is saved, the structure is simple, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting anchor rods, in particular to a mine fault supporting anchor rod. Background Art

[0002] Anchor rods are widely used in engineering support, and can be used in shaft and tunnel support, dam reinforcement, landslide control, tunnel reinforcement, soft soil deep foundation pit reinforcement and other fields. Among them, the fault in the coal mine not only changes the burial conditions of the coal rock layer, but also causes the coal rock layer to be dislocated and significantly displaced. The rock structure strength at the fault is weak, and it is very easy to produce gravel collapse.

[0003] When supporting the roof of a coal mine fault, hollow anchor rods are usually used to grout the fault so that the slurry can fill the fault gaps and improve the overall strength of the fault. In order to ensure that the cracks can be completely filled, a grouting liquid with low viscosity and good fluidity is generally required to meet the needs of filling small cracks. However, before the anchor rod is inserted, the mud and impurities in the hole need to be cleared. The current technology is to use tools to clear them first and then grouting. The steps are cumbersome and time-consuming. Utility Model Content

[0004] In view of the above-mentioned problems existing in the existing support anchor rods, the present utility model is proposed.

[0005] Therefore, the utility model aims to provide a mine fault support anchor rod, which solves the problem that the mud and impurities in the hole need to be cleared before the anchor rod is inserted, which is cumbersome and time-consuming.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A mine fault support anchor comprises a hollow tube and a grouting head, support rings are fixedly provided at both ends of the hollow tube, a grouting head is fixedly provided on one side of the support ring, a plurality of openings are fixedly provided on the wall of the hollow tube and the outer wall of the grouting head, a sliding tube is slidably provided on the outer side of the support ring, a circular scraper is fixedly provided at one end of the sliding tube, a sliding rail is fixedly provided on the inner wall of the sliding tube, sliders are fixedly provided on both sides of the support ring, the sliders and the sliding rails are slidably matched, a fixing device is fixedly provided on the outer side of the hollow tube, and the fixing device fits with the inner side of the sliding tube.

[0008] Preferably, a fixing seat is fixedly provided on one side of one of the support rings, and a first grouting pipe and a second grouting pipe are slidably provided in the fixing seat.

[0009] Preferably, the fixing device comprises elastic telescopic rods and a support plate, a plurality of elastic telescopic rods are fixedly provided on the tube walls on both sides of the hollow tube, and a support plate is fixedly provided on the tops of the plurality of elastic telescopic rods.

[0010] Preferably, a support rod is slidably provided inside the circular scraper, the support rod passes through the circular scraper, and an insertion rod is fixedly provided on one side of the support rod, and the insertion rod is inserted into one of the openings.

[0011] Furthermore, a heating plate is fixedly provided inside the hollow tube.

[0012] Preferably, the first grouting pipe and the second grouting pipe are rubber pipes.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] 1. The utility model adopts a sliding tube and a circular scraper to remove mud and impurities in the hole, which improves work efficiency, reduces tool transportation intensity and saves work time. The device is inserted into the hole to smoothly pull out the sliding tube, and the grouting head is fixed with a support rod and an insertion rod. The sliding tube and the circular scraper are pulled out, which can clean the impurities in the hole without affecting the normal work of the grouting head and the hollow tube. This device integrates the anchor rod and the cleaning device, saves work time and has a simple structure and is easy to operate.

[0015] 2. The utility model adopts a fixing device to fix the hollow tube. In order to prevent the anchor rod from shaking and causing deviation during grouting, an elastic telescopic rod and a support plate are used to fix the hollow tube, and then grouting is performed. The first grouting tube and the second grouting tube are used for grouting. In order to ensure the quality of grouting, after grouting in the first grouting tube, in order to squeeze out the internal air, the second grouting tube adopts high-pressure grouting to completely fill the internal gap and ensure the support strength of the anchor rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic cross-sectional view of the planar structure of the utility model;

[0018] Figure 2 It is a side sectional view of the planar structure of the utility model;

[0019] Figure 3 For the utility model Figure 1 An enlarged schematic diagram of part A.

[0020] Description of reference numerals:

[0021] 1. Hollow tube; 2. Grouting head; 3. Support ring; 4. Opening; 5. Sliding tube; 6. Circular scraper; 7. Slide rail; 8. Sliding block; 9. Fixed seat; 10. First grouting tube; 11. Second grouting tube; 12. Elastic telescopic rod; 13. Support plate; 14. Support rod; 15. Insert rod; 16. Heating plate. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] The utility model embodiment discloses a mine fault support anchor rod.

[0024] The utility model provides Figure 1-3 A mine fault support anchor shown in the figure includes a hollow tube 1 and a grouting head 2, support rings 3 are fixedly provided at both ends of the hollow tube 1, a grouting head 2 is fixedly provided on one side of the support ring 3, a plurality of openings 4 are fixedly opened on the wall of the hollow tube 1 and the outer wall of the grouting head 2, a sliding tube 5 is slidably provided on the outer side of the support ring 3, a circular scraper 6 is fixedly provided at one end of the sliding tube 5, a slide rail 7 is fixedly provided on the inner wall of the sliding tube 5, sliders 8 are fixedly provided on both sides of the support ring 3, the slider 8 and the slide rail 7 are slidably matched, a fixing device is fixedly provided on the outer side of the hollow tube 1, and the fixing device is fitted with the inner side of the sliding tube 5. Before grouting, the device is put into the hole, the sliding tube 5 is pulled out, the slide rail 7 slides on the slide plate, and the circular scraper 6 is used to scrape out the mud and impurities in the hole, and then the hollow tube 1 is grouted, and the slurry flows out through the grouting head 2 and the openings 4 on the hollow tube 1.

[0025] In order to fill all the internal gaps, Figure 1 As shown, a fixing seat 9 is fixedly provided on one side of one of the support rings 3, and a first grouting pipe 10 and a second grouting pipe 11 are slidably provided inside the fixing seat 9. Grouting is performed using the first grouting pipe 10 and the second grouting pipe 11. After grouting in the first grouting pipe 10, in order to squeeze out the internal air, the second grouting pipe 11 adopts high-pressure grouting to completely fill the internal gap.

[0026] In order to fix the anchor rod, Figure 1-3 As shown, the fixing device includes an elastic telescopic rod 12 and a support plate 13. A plurality of elastic telescopic rods 12 are fixedly provided on the tube walls on both sides of the hollow tube 1, and a support plate 13 is fixedly provided on the top of the plurality of elastic telescopic rods 12. In order to fix the anchor rod, after the sliding tube 5 is pulled out, the elastic telescopic rod 12 pops out to support the support plate 13 against the inner wall of the borehole.

[0027] In order to facilitate the extraction of the sliding tube 5, Figure 1As shown, a support rod 14 is slidably provided inside the circular scraper 6, and the support rod 14 passes through the circular scraper 6. An insertion rod 15 is fixedly provided on one side of the support rod 14, and the insertion rod 15 is inserted into one of the openings 4. In order to facilitate the withdrawal of the sliding tube 5, the support rod 14 is pressed, and after the sliding tube 5 is withdrawn, the insertion rod 15 is pulled out from the opening 4, and the support rod 14 is taken out of the drilled hole.

[0028] Finally, in order to make the slurry solidify faster, Figure 1-3 As shown, a heating plate 16 is fixedly provided inside the hollow tube 1. In order to make the slurry solidify faster, the first grouting tube 10 and the second grouting tube 11 are rubber tubes.

[0029] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A mine fault support anchor, comprising a hollow tube (1) and a grouting head (2), characterized in that: Support rings (3) are fixedly provided at both ends of the hollow tube (1), a grouting head (2) is fixedly provided on one side of the support ring (3), a plurality of openings (4) are fixedly provided on the tube wall of the hollow tube (1) and the outer wall of the grouting head (2), a sliding tube (5) is slidably provided on the outer side of the support ring (3), a circular scraper (6) is fixedly provided on one end of the sliding tube (5), a sliding rail (7) is fixedly provided on the inner wall of the sliding tube (5), sliders (8) are fixedly provided on both sides of the support ring (3), the sliders (8) and the sliding rails (7) are slidably matched, a fixing device is fixedly provided on the outer side of the hollow tube (1), and the fixing device is fitted with the inner side of the sliding tube (5).

2. A mine fault support anchor according to claim 1, characterized in that: A fixing seat (9) is fixedly provided on one side of one of the support rings (3), and a first grouting pipe (10) and a second grouting pipe (11) are slidably provided inside the fixing seat (9).

3. A mine fault support anchor according to claim 1, characterized in that: The fixing device comprises an elastic telescopic rod (12) and a support plate (13); a plurality of elastic telescopic rods (12) are fixedly provided on the tube walls on both sides of the hollow tube (1); and a support plate (13) is fixedly provided on the tops of the plurality of elastic telescopic rods (12).

4. A mine fault support anchor according to claim 1, characterized in that: A support rod (14) is slidably arranged inside the circular scraper (6), the support rod (14) passes through the circular scraper (6), and an insertion rod (15) is fixedly arranged on one side of the support rod (14), and the insertion rod (15) is inserted into one of the openings (4).

5. A mine fault support anchor according to claim 1, characterized in that: A heating plate (16) is fixedly provided inside the hollow tube (1).

6. A mine fault support anchor according to claim 2, characterized in that: The first grouting pipe (10) and the second grouting pipe (11) are made of rubber tubes.

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