Anchor rod with positioner

Abstract

The utility model relates to the technical field of anchor rod positioning, and discloses an anchor rod with a positioner, which comprises an anchor rod body, the left side of the anchor rod body is in threaded connection with an expansion shell anchor head, and the outer side of the anchor rod body is fixedly connected with four connecting blocks which are distributed in an annular array. The interiors of the four connecting blocks are rotationally connected with first connecting rods, the interiors of the four first connecting rods are rotationally connected with second connecting rods, the ends, away from the first connecting rods, of the four second connecting rods are rotationally connected with the interior of the same limiting ring, and the inner side of the limiting ring is slidably connected with the outer side of the anchor rod body; and the outer side of the anchor rod body is in threaded connection with a movable ring. The anchor rod with the positioner has the advantages of being good in positioning effect and the like, and the problem that when a triangular wooden wedge block is used for positioning the anchor rod, due to the triangular wooden wedge block structure, the situation of uneven stress possibly occurs, and consequently the anchor rod deviates is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor rod positioning, in particular to an anchor rod with a positioner. Background Art

[0002] Anchor rods are the most basic component of tunnel support in contemporary coal mines. They reinforce the surrounding rock of the tunnel so that the surrounding rock can support itself. Anchor rods are not only used in mines, but also in engineering technology to reinforce slopes, tunnels, and dam bodies. Anchor rods are tensile components that penetrate deep into the strata. One end of the anchor rod is connected to the engineering structure, and the other end is deep in the stratum. The entire anchor rod is divided into a free section and an anchoring section. The free section refers to the area that transmits the tension at the anchor rod head to the anchor body. Its function is to apply prestress to the anchor rod.

[0003] The existing anchor rod positioning device is usually a triangular wooden wedge that is sleeved outside the anchor rod. The method of using the triangular wooden wedge to position the anchor rod may result in uneven force due to the triangular wooden block structure, causing the anchor rod to deviate. Therefore, an anchor rod with a locator is proposed to solve the above-mentioned problem. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the utility model provides an anchor rod with a locator, which has the advantages of good positioning effect, etc., and solves the problem that when using triangular wooden wedges to position the anchor rod, uneven force may occur due to the triangular wooden block structure, causing the anchor rod to deviate.

[0006] (II) Technical solution

[0007] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: an anchor rod with a locator comprises an anchor rod body, the left side of the anchor rod body is threadedly connected with an expansion shell anchor head, the outer side of the anchor rod body is fixedly connected with four connecting blocks distributed in a ring array, the interiors of the four connecting blocks are rotatably connected with a first connecting rod, the interiors of the four first connecting rods are rotatably connected with a second connecting rod, the ends of the four second connecting rods away from the first connecting rod are rotatably connected to the interior of the same limiting ring, the inner side of the limiting ring is slidably connected to the outer side of the anchor rod body, the outer side of the anchor rod body is threadedly connected with a moving ring, the left side of the moving ring is fixedly connected with a connecting ring, the outer side of the connecting ring is rotatably connected to the interior of the limiting ring, a grouting port is provided on the right side of the anchor rod body, and a first grouting port is provided on the left side of the anchor rod body.

[0008] The beneficial effects of the utility model are as follows: after the anchor body is inserted into the rock cave, the anchor body drives the expansion shell anchor head to a suitable position, the anchor body is rotated to drive the expansion shell anchor head to expand and initially position the anchor body, the rotating moving ring drives the limiting ring to move toward the expansion shell anchor head through the connecting ring, the limiting ring drives the four first connecting rods to prop up through the four second connecting rods, and after the four first connecting rods are propped up, the four connecting blocks are positioned through the rock wall, and the four connecting blocks position the anchor body through the four first connecting rods, the grouting port is convenient for grouting into the interior of the anchor body, and the first slurry outlet is convenient for discharging cement slurry inside the anchor body.

[0009] The anchor rod provided with the positioner has the advantage of good positioning effect.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, a second slurry outlet is opened on the outer side of the expansion shell anchor head, and the number of the second slurry outlets is several and distributed in a ring array.

[0012] The beneficial effect of adopting the above further solution is that the second slurry outlet facilitates the discharge of cement slurry inside the expansion shell anchor head into the rock cave.

[0013] Furthermore, a grouting stopper is threadedly connected to the outer side of the anchor body, and a sealing head adapted to the grouting port is provided inside the grouting stopper.

[0014] The beneficial effect of adopting the above further solution is that the grout stopper prevents cement grout from overflowing from the interior of the anchor body.

[0015] Furthermore, a gasket is fixedly connected to the outer side of the slurry stopping plug, and two rotating rods symmetrically distributed up and down are fixedly connected to the right side of the gasket.

[0016] The beneficial effect of adopting the above further solution is that the gasket can prevent the cement slurry between the rock hole and the anchor body from overflowing.

[0017] Furthermore, the left sides of the four connecting blocks are all arranged with arc surfaces, and the outer sides of the four first connecting rods are all arranged with anti-slip teeth.

[0018] The beneficial effect of adopting the above further solution is that the left sides of the four connecting blocks are all arranged as arc surfaces, which can prevent the four connecting blocks from getting stuck after contacting the rock cave.

[0019] Furthermore, a positioning ring is fixedly connected to the right side of the expansion shell anchor head, and the inner side of the positioning ring is slidably connected to the outer side of the anchor rod body.

[0020] The beneficial effect of adopting the above further solution is that the expansion shell anchor head provides a fixing effect on the positioning ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a front view of the connection structure of the anchor rod body and the connection block of the utility model;

[0023] Figure 3 This is a side view of the connecting structure of the rotating rod and the gasket of the utility model;

[0024] Figure 4 This is an enlarged view of the structure at point A of the utility model.

[0025] In the figure: 1. anchor body; 2. expansion shell anchor head; 3. connecting block; 4. first connecting rod; 5. second connecting rod; 6. limiting ring; 7. moving ring; 8. connecting ring; 9. grouting port; 10. first slurry outlet; 11. second slurry outlet; 12. slurry stopper; 13. sealing head; 14. gasket; 15. rotating rod; 16. anti-skid teeth; 17. positioning ring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the embodiment, Figure 1-4 Provided is an anchor rod with a locator. The utility model comprises an anchor rod body 1, the left side of the anchor rod body 1 is threadedly connected with an expansion shell anchor head 2, the outer side of the anchor rod body 1 is fixedly connected with four connecting blocks 3 distributed in a ring array, the interiors of the four connecting blocks 3 are all rotatably connected with a first connecting rod 4, the interiors of the four first connecting rods 4 are all rotatably connected with a second connecting rod 5, the ends of the four second connecting rods 5 away from the first connecting rod 4 are all rotatably connected with the interior of the same limiting ring 6, the inner side of the limiting ring 6 is slidably connected with the outer side of the anchor rod body 1, the outer side of the anchor rod body 1 is threadedly connected with a moving ring 7, the left side of the moving ring 7 is fixedly connected with a connecting ring 8, the outer side of the connecting ring 8 is rotatably connected with the interior of the limiting ring 6, a grouting port 9 is provided on the right side of the anchor rod body 1, and a first slurry outlet 10 is provided on the left side of the anchor rod body 1;

[0028] A second slurry outlet 11 is provided on the outer side of the expansion shell anchor head 2. The number of the second slurry outlets 11 is several and they are distributed in a ring array.

[0029] The second slurry outlet 11 is convenient for discharging the cement slurry inside the expansion shell anchor head 2 into the rock cave. The number of the second slurry outlets 11 is several and they are distributed in a circular array, which is more convenient for discharging the cement slurry.

[0030] The outer side of the anchor body 1 is connected with a grout stopper 12 through a thread, and the interior of the grout stopper 12 is provided with a sealing head 13 adapted to the grouting port 9;

[0031] The grout stopper 12 prevents cement slurry from overflowing from the inside of the anchor body 1, and the sealing head 13 can further improve the sealing performance of the grout stopper 12;

[0032] A gasket 14 is fixedly connected to the outer side of the slurry stopper 12, and two rotating rods 15 symmetrically distributed up and down are fixedly connected to the right side of the gasket 14;

[0033] The gasket 14 can prevent the cement slurry between the rock cave and the anchor body 1 from overflowing, and the rotating rod 15 can drive the slurry stopper 12 to rotate through the gasket 14;

[0034] The left sides of the four connecting blocks 3 are all arranged with arc surfaces, and the outer sides of the four first connecting rods 4 are all arranged with anti-slip teeth 16;

[0035] The left sides of the four connecting blocks 3 are all arranged with arc surfaces to prevent the four connecting blocks 3 from getting stuck after contacting the rock cave, and the four anti-slip teeth 16 can prevent the four first connecting rods 4 from slipping;

[0036] A positioning ring 17 is fixedly connected to the right side of the expansion shell anchor head 2, and the inner side of the positioning ring 17 is slidably connected to the outer side of the anchor body 1;

[0037] The expansion shell anchor head 2 provides a fixing effect on the positioning ring 17 , and the positioning ring 17 provides a further limiting effect on the expansion shell anchor head 2 through the anchor rod body 1 .

[0038] Working principle:

[0039] Step 1: insert the anchor body 1 into the rock cave, push the anchor body 1 to drive the expansion shell anchor head 2 to move to a suitable position, and rotate the anchor body 1 to drive the expansion shell anchor head 2 to expand to complete the initial positioning;

[0040] Step 2: The rotating moving ring 7 drives the limiting ring 6 to move toward the expansion shell anchor head 2 through the connecting ring 8. The limiting ring 6 drives the four first connecting rods 4 to prop up through the four second connecting rods 5. After the four first connecting rods 4 are propped up, the four connecting blocks 3 are positioned through the rock wall. The four connecting blocks 3 position the anchor body 1 through the four first connecting rods 4.

[0041] Step 3: grouting is performed into the interior of the anchor body 1 through the grouting port 9. The cement slurry enters the interior of the expansion shell anchor head 2 from the first slurry outlet 10 inside the anchor body 1, and enters between the rock cave and the anchor body 1 from the second slurry outlet 11 inside the expansion shell anchor head 2. After the cement slurry is injected, the sealing head 13 is aligned with the grouting port 9 and then rotated through the two rotating rods 15 and the gasket 14 to drive the sealing head 13 to the outside of the anchor body 1 to complete the sealing.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anchor rod with a positioner, comprising an anchor rod body (1), characterized in that: The left side of the anchor rod body (1) is threadedly connected to an expansion shell anchor head (2); the outer side of the anchor rod body (1) is fixedly connected to four connecting blocks (3) distributed in a ring array; the interiors of the four connecting blocks (3) are all rotatably connected to a first connecting rod (4); the interiors of the four first connecting rods (4) are all rotatably connected to a second connecting rod (5); the ends of the four second connecting rods (5) away from the first connecting rod (4) are all rotatably connected to the interior of a same limiting ring (6); the inner side of the limiting ring (6) is slidably connected to the outer side of the anchor rod body (1); the outer side of the anchor rod body (1) is threadedly connected to a moving ring (7); the left side of the moving ring (7) is fixedly connected to a connecting ring (8); the outer side of the connecting ring (8) is rotatably connected to the interior of the limiting ring (6); a grouting port (9) is provided on the right side of the anchor rod body (1); and a first grouting port (10) is provided on the left side of the anchor rod body (1).

2. The anchor rod with a positioner according to claim 1, characterized in that: A second slurry outlet (11) is provided on the outer side of the expansion shell anchor head (2), and the second slurry outlets (11) are multiple in number and distributed in a ring array.

3. The anchor rod with a positioner according to claim 1, characterized in that: The outer side of the anchor rod body (1) is connected to a grouting stopper (12) via a thread, and the interior of the grouting stopper (12) is provided with a sealing head (13) that matches the grouting port (9).

4. The anchor rod with a positioner according to claim 3, characterized in that: A gasket (14) is fixedly connected to the outer side of the slurry stopping plug (12), and two rotating rods (15) symmetrically distributed up and down are fixedly connected to the right side of the gasket (14).

5. The anchor rod with a positioner according to claim 1, characterized in that: The left sides of the four connecting blocks (3) are all arranged with arc surfaces, and the outer sides of the four first connecting rods (4) are all arranged with anti-slip teeth (16).

6. The anchor rod with a positioner according to claim 1, characterized in that: A positioning ring (17) is fixedly connected to the right side of the expansion shell anchor head (2), and the inner side of the positioning ring (17) is slidably connected to the outer side of the anchor rod body (1).

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