Anchor rod positioning device

Abstract

The utility model discloses an anchor rod positioning device, which relates to the technical field of mining anchor rods, and comprises a positioning ring seat, limiting pipe sleeves are embedded on the front side, the rear side, the left side and the right side of the upper portion and the lower portion of the positioning ring seat, threaded pipes are rotatably nested at the outer ends of the limiting pipe sleeves, and threaded shafts are nested in the threaded pipes in a threaded manner. The inner end of the upper threaded shaft is connected with a positioning block, the inner end of the lower threaded shaft is connected with a positioning plate, and the threaded pipe is fixedly sleeved with a gear. The annular racks are connected with the corresponding gears in a meshed mode. The four positioning plates abut against the inner wall of a drill hole by rotating the handle located below the annular convex part, the anchor rod is inserted, the four positioning blocks are close to one another to position the anchor rod by rotating the handle located above the annular convex part, the anchor rod can be located in the center of the drill hole, the possibility that the anchor rod deviates is reduced, and the drilling efficiency is improved. The operation is simple and convenient, and anchor rods with different diameters can be positioned.

Description

Technical Field

[0001] The utility model relates to the technical field of mining anchor rods, in particular to an anchor rod positioning device. Background Art

[0002] In coal mining, anchor rods reinforce the surrounding rock of the tunnel, allowing it to support itself and prevent the surrounding rock from falling debris or collapsing. Anchor rods must be installed at equal intervals to ensure uniform stress on the tunnel support structure. The rod body of an anchor rod is generally made of materials with high tensile strength, such as threaded steel bars, steel pipes, and steel strands. Anchor rod construction typically involves drilling a hole first, placing the rod body into the hole, and then grouting. Alternatively, grouting is performed after drilling, followed by placing the rod body into the hole.

[0003] Currently, when inserting an anchor rod into a drilled hole, the rod must be centered. Therefore, a positioning device is required to position the rod to ensure it is centered during insertion. Traditional anchor rod positioning devices use triangular wooden wedges to position the rod, but these wedges are prone to deviation during installation and adjustment, and can also cause uneven force on both sides, causing the rod to shift from the center of the hole. Utility Model Content

[0004] The purpose of the utility model is to provide an anchor rod positioning device to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anchor rod positioning device, comprising:

[0006] A positioning ring seat, wherein the front, rear, left and right sides of the upper and lower parts of the positioning ring seat are all inlaid with limiting sleeves, the outer end of the limiting sleeve is rotatably embedded with a threaded tube, the internal thread of the threaded tube is embedded with a threaded shaft, the inner end of the threaded shaft slides through the limiting sleeve, the inner end of the threaded shaft located at the top is connected to a positioning block, the inner end of the threaded shaft located at the bottom is connected to a positioning plate, and a gear is fixedly sleeved on the threaded tube;

[0007] Two swivels are symmetrically and movably connected to the upper and lower parts of the positioning ring seat. The two swivels are located between the upper and lower gears. An annular rack is fixed on the side of the two swivels close to the gear, and the annular rack is meshed with the corresponding gear.

[0008] Preferably, the upper and lower sides of the threaded shaft are provided with sliding grooves, and the upper and lower side walls of the inner end of the limiting tube sleeve are fixed with sliders, and the sliders are slidably nested in the sliding grooves to limit the threaded shaft so that the threaded shaft can only move horizontally and cannot deflect, so that when the threaded tube rotates, it can drive the threaded shaft to move.

[0009] Preferably, the limiting tube sleeve is fixedly passed through the side wall of the positioning ring seat, an annular groove is provided on the inner wall of the front end of the limiting tube sleeve, the inner end of the threaded tube is rotatably nested in the limiting tube sleeve, an annular protrusion is fixed on the outer wall of the inner end of the threaded tube, and the annular protrusion is slidably nested in the annular groove, so that the threaded tube and the limiting tube sleeve are firmly connected and can rotate relative to each other.

[0010] Preferably, the positioning block is cylindrical, and a ball is movably embedded in one end of the positioning block away from the threaded shaft. The ball contacts the anchor rod, thereby limiting the anchor rod without hindering the insertion of the anchor rod.

[0011] Preferably, the lower end of the positioning plate extends out of the positioning ring seat.

[0012] Preferably, an annular convex portion is provided on the middle portion of the outer side of the positioning ring seat, the annular convex portion is located between the two rotating rings, and a plurality of handles are fixed at equal intervals on the outer side of the annular convex portion.

[0013] Preferably, a plurality of handles are fixed at equal intervals on the outer side wall of the rotating ring, and the rotating ring can be conveniently driven to rotate by the handles.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. Place the anchor rod positioning device at the drilling port, insert the four positioning plates into the drilling hole, hold the handle, and then rotate the handle located below the annular protrusion to move the four positioning plates away from each other, so that the four positioning plates come into conflict with the inner wall of the drilling hole, so that the anchor rod positioning device is fixed at the drilling port. Then insert the anchor rod, and then rotate the handle located above the annular protrusion to move the four positioning blocks closer to each other to position the anchor rod. This allows the anchor rod to be located in the center of the drilling hole, reducing the possibility of the anchor rod being offset. The overall operation is simple and convenient, and anchor rods of different diameters can be positioned.

[0016] 2. A ball is movably embedded in the end of the positioning block away from the threaded shaft. The ball contacts the anchor rod, which limits the anchor rod without hindering its insertion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram from another angle of the present invention;

[0020] Figure 3 This is a schematic diagram of the connection between the limiting sleeve and the threaded shaft of the utility model;

[0021] Figure 4 This is a three-dimensional cross-sectional view of the connection between the limiting pipe sleeve and the threaded pipe of the utility model;

[0022] Figure 5 This is a schematic diagram of the threaded pipe structure of the present utility model;

[0023] Figure 6 This is a three-dimensional cross-sectional view of the limiting pipe sleeve of the present utility model.

[0024] Description of reference numerals:

[0025] 1. Positioning ring seat; 2. Limiting sleeve; 3. Threaded tube; 4. Threaded shaft; 5. Positioning block; 6. Positioning plate; 7. Gear; 8. Swivel; 9. Annular rack; 10. Slide; 11. Slider; 12. Annular groove; 13. Annular protrusion; 14. Ball; 15. Annular protrusion; 16. Handle; 17. Handle. DETAILED DESCRIPTION

[0026] 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 with reference to the accompanying drawings.

[0027] The utility model provides Figures 1 to 6 An anchor rod positioning device is shown, comprising:

[0028] The positioning ring seat 1 has four sides, front, back, left and right, of the upper and lower parts of the positioning ring seat 1, which are all inlaid with limiting sleeves 2. The outer end of the limiting sleeve 2 is rotatably embedded with a threaded tube 3. The internal thread of the threaded tube 3 is embedded with a threaded shaft 4. The inner end of the threaded shaft 4 slides through the limiting sleeve 2. The inner end of the threaded shaft 4 at the top is connected with a positioning block 5. The positioning block 5 is cylindrical. The end of the positioning block 5 away from the threaded shaft 4 is movably inlaid with a ball 14. The ball 14 contacts the anchor rod and limits the anchor rod without hindering the insertion of the anchor rod. The inner end of the threaded shaft 4 at the bottom is connected with a positioning plate 6. The lower end of the positioning plate 6 extends out of the positioning ring seat 1. A gear 7 is fixedly sleeved on the threaded tube 3.

[0029] Two swivels 8 are symmetrically movably connected to the upper and lower parts of the positioning ring seat 1. The two swivels 8 are located between the upper and lower gears 7. An annular rack 9 is fixed on the side of the two swivels 8 close to the gear 7, and the annular rack 9 is meshed with the corresponding gear 7.

[0030] Slide grooves 10 are provided on the upper and lower sides of the threaded shaft 4, and sliders 11 are fixed to the upper and lower side walls of the inner end of the limiting sleeve 2. The sliders 11 slide and nest in the slide grooves 10 to limit the threaded shaft 4 so that the threaded shaft 4 can only move horizontally and cannot deflect, so that when the threaded tube 3 rotates, it can drive the threaded shaft 4 to move.

[0031] The limiting sleeve 2 is fixedly passed through the side wall of the positioning ring seat 1, and an annular groove 12 is provided on the inner wall of the front end of the limiting sleeve 2. The inner end of the threaded tube 3 is rotatably nested in the limiting sleeve 2, and an annular protrusion 13 is fixed on the outer wall of the inner end of the threaded tube 3. The annular protrusion 13 is slidably nested in the annular groove 12, so that the threaded tube 3 and the limiting sleeve 2 are firmly connected and can rotate relative to each other.

[0032] An annular protrusion 15 is provided in the middle of the outer side of the positioning ring seat 1 . The annular protrusion 15 is located between the two rotating rings 8 . A plurality of handles 16 are fixed at equal intervals on the outer side of the annular protrusion 15 .

[0033] Preferably, a plurality of handles 17 are fixed at equal intervals on the outer side wall of the swivel 8 , and the swivel 8 can be conveniently driven to rotate by the handles 17 .

[0034] In the present invention, the anchor bolt positioning device is placed at the borehole port, four positioning plates 6 are inserted into the borehole, the handle 16 is held, and then the handle 17 located below the annular protrusion 15 is rotated, driving the swivel 8 located below the annular protrusion 15 to rotate, the rotation of the swivel 8 drives the annular rack 9 at its bottom to rotate, the rotation of the annular rack 9 drives the threaded tube 3 below the annular protrusion 15 to rotate through the gear 7 engaged therewith, so that the threaded shaft 4 in the threaded tube 3 moves, thereby driving the positioning plates 6 to move, so that the four positioning plates 6 move away from each other, so that the four positioning plates 6 conflict with the inner wall of the borehole, so that the anchor bolt positioning device is fixed at the borehole port, and then the anchor bolt is inserted, and the handle 17 located below the annular protrusion 15 is rotated. The handle 17 above drives the swivel 8 above the annular protrusion 15 to rotate, and the rotation of the swivel 8 drives the annular rack 9 on its top to rotate. The rotation of the annular rack 9 drives the threaded tube 3 above the annular protrusion 15 to rotate through the gear 7 engaged with it, so that the threaded shaft 4 in the threaded tube 3 moves, thereby driving the positioning block 5 to move, so that the four positioning blocks 5 are close to each other to position the anchor rod, so that the anchor rod can be in the center position of the drill hole, reducing the possibility of the anchor rod being offset. The overall operation is simple and convenient, and anchor rods of different diameters can be positioned. A ball 14 is movably embedded in the end of the positioning block 5 away from the threaded shaft 4. The ball 14 contacts the anchor rod and limits the anchor rod without hindering its insertion.

[0035] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An anchor rod positioning device, characterized in that: include: A positioning ring seat (1), wherein the front, rear, left and right sides of the upper and lower parts of the positioning ring seat (1) are all inlaid with limiting sleeves (2), the outer end of the limiting sleeve (2) is rotatably embedded with a threaded tube (3), the internal thread of the threaded tube (3) is embedded with a threaded shaft (4), the inner end of the threaded shaft (4) slides through the limiting sleeve (2), the inner end of the threaded shaft (4) located at the top is connected to a positioning block (5), the inner end of the threaded shaft (4) located at the bottom is connected to a positioning plate (6), and a gear (7) is fixedly sleeved on the threaded tube (3); Two rotating rings (8) are symmetrically and movably sleeved on the upper and lower parts of the positioning ring seat (1). The two rotating rings (8) are located between the upper and lower gears (7). An annular rack (9) is fixed on one side of the two rotating rings (8) close to the gear (7), and the annular rack (9) is meshed and connected with the corresponding gear (7).

2. The anchor rod positioning device according to claim 1, characterized in that: The upper and lower sides of the threaded shaft (4) are both provided with sliding grooves (10), and the upper and lower side walls of the inner end of the limiting sleeve (2) are both fixed with sliders (11), and the sliders (11) are slidably nested in the sliding grooves (10).

3. The anchor rod positioning device according to claim 1, characterized in that: The limiting sleeve (2) is fixedly passed through the side wall of the positioning ring seat (1); an annular groove (12) is provided on the inner wall of the front end of the limiting sleeve (2); the inner end of the threaded tube (3) is rotatably nested in the limiting sleeve (2); an annular protrusion (13) is fixed on the outer wall of the inner end of the threaded tube (3); and the annular protrusion (13) is slidably nested in the annular groove (12).

4. The anchor rod positioning device according to claim 1, characterized in that: The positioning block (5) is cylindrical, and a ball (14) is movably embedded in one end of the positioning block (5) away from the threaded shaft (4).

5. The anchor rod positioning device according to claim 1, characterized in that: The lower end of the positioning plate (6) extends out of the positioning ring seat (1).

6. The anchor rod positioning device according to claim 1, characterized in that: An annular convex portion (15) is provided in the middle of the outer side of the positioning ring seat (1), and the annular convex portion (15) is located between the two rotating rings (8). A plurality of handles (16) are fixed at equal intervals on the outer side of the annular convex portion (15).

7. The anchor rod positioning device according to claim 1, characterized in that: A plurality of handles (17) are fixed at equal intervals on the outer side wall of the rotating ring (8).

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