Self-expansion anchor rod capable of releasing stored energy through rotation

Abstract

The self-expansion anchor rod comprises a guide cylinder and an anchor rod body, a sliding block sliding in the axial direction is arranged in the guide cylinder, a compression spring is arranged at the left end of the sliding block, a sliding self-expansion assembly is arranged at the right end of the sliding block, the right end of the sliding block is connected with a connecting rod, and the right end of the connecting rod penetrates through the self-expansion assembly. The guide block abuts against the guide block; the guide block is arranged in the rotary cylinder and rotationally locked with the rotary cylinder, the rotary cylinder is located in the guide cylinder, the right end of the rotary cylinder abuts against the right end of the guide cylinder, the left end of the anchor rod body penetrates through the guide cylinder and is fixedly connected with the rotary cylinder, the anchor rod body drives the rotary cylinder to rotate reversely, the rotary cylinder unlocks the guide block, and the guide block axially slides. Locking of the guide block and the sliding block is relieved by rotating the rotating cylinder, then anchoring is achieved through stretching of the compression spring, operation is easy and convenient, the anchoring device is not prone to being influenced by operators, and anchoring stability is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of self-expanding anchor technology, and in particular to a self-expanding anchor that uses rotation to release energy storage. Background Technology

[0002] After drilling and cleaning, the anchor bolts need to be inserted into the borehole for expansion and anchoring before grouting. Existing anchoring expansion methods mostly involve rotating a screw, which moves a countersunk block, causing the expansion cylinder to unfold and thus achieving anchoring. Rotating the screw is time-consuming and labor-intensive, and the operator may not be able to rotate the screw properly, resulting in poor anchoring stability. Utility Model Content

[0003] This invention proposes a self-expanding anchor bolt that uses rotational release and energy storage. By rotating the rotating cylinder, the locking of the guide block and slider is released, and then the anchoring is achieved by the extension of the compression spring. The operation is simple and convenient, and it is not easily affected by the operator, ensuring the stability of the anchoring.

[0004] The technical solution of this utility model is implemented as follows: A self-expanding anchor bolt that uses rotational release and energy storage includes a guide cylinder and an anchor bolt body. An axially sliding slider is provided inside the guide cylinder. A compression spring is provided at the left end of the slider, and a sliding self-expanding component is provided at the right end. The right end of the slider is connected to a connecting rod, and the right end of the connecting rod passes through the self-expanding component and abuts against the guide block. The guide block is placed inside a rotating cylinder and is rotatably locked with the rotating cylinder. The rotating cylinder is located inside the guide cylinder, and the right end of the rotating cylinder abuts against the right end of the guide cylinder. The left end of the anchor bolt body passes through the guide cylinder and is fixedly connected to the rotating cylinder. The anchor bolt body drives the rotating cylinder to rotate in the opposite direction, and the rotating cylinder releases the lock on the guide block, allowing the guide block to slide axially.

[0005] Furthermore, the guide cylinder is provided with an axial groove, and the self-expanding assembly includes a top plate and a support rod. The top plate is placed inside the guide cylinder, and the support rod is located outside the axial groove. The left end of the support rod is hinged to the top plate, and the right end is connected to the guide cylinder through an elastic element. An inclined plate is fixed to the inner side of the support rod, and the left end of the inclined plate passes through the axial groove and is inclined inward.

[0006] Furthermore, there are two axial grooves, which are symmetrically arranged on both sides of the guide cylinder. The support rods are arranged in a one-to-one correspondence with the axial grooves. The elastic element is a rubber band, which is sleeved on the outside of the guide cylinder and the two support rods.

[0007] Furthermore, a limit block is fixed inside the rotating cylinder, and a guide groove is provided on the guide block to cooperate with the limit block. When the rotating cylinder is rotated, the limit block deviates from the guide groove, and the guide block and the rotating cylinder are rotated and locked. When the rotating cylinder is rotated in the opposite direction, the limit block corresponds to the guide groove, and the guide block slides axially, and the limit block passes through the guide groove.

[0008] Furthermore, the guide groove includes two, symmetrically arranged on both sides of the guide block, and the limiting block corresponds to the guide groove one by one. The limiting block is located on one side of the guide groove, and a baffle is fixed on the other side of the guide groove.

[0009] Furthermore, a fixing block is fixed to the left end of the guide cylinder, the fixing block includes a constant diameter section, and a tapered section is fixed to the right end of the constant diameter section.

[0010] Furthermore, the right end of the slider is a tapered end, and the diameter of the right end of the tapered end is smaller.

[0011] The beneficial effects of this utility model are:

[0012] The self-expanding anchor bolt of this invention can be unlocked by simply rotating the rotating cylinder, which in turn unlocks the slider. The compressed spring extends, and the slider pushes the self-expanding component to the right to expand. The operation is simple and convenient, and it is not easily affected by the operator, ensuring anchoring stability.

[0013] When the self-expanding component of this invention moves to the right, the inclined plate moves along the right end of the axial groove, thereby causing the right end of the support rod to open outward and achieve anchoring. The elastic element ensures that the support rod is initially in close contact with the outer wall of the guide cylinder. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the guide block structure;

[0018] Figure 4 This is a schematic diagram of the rotating cylinder.

[0019] Guide cylinder 1, anchor body 2, fixing block 3, slider 4, compression spring 5, connecting rod 6, guide block 7, rotating cylinder 8, limiting block 9, guide groove 10, baffle 11, axial sliding groove 12, top plate 13, support rod 14, elastic element 15, inclined plate 16. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] like Figure 1-2 As shown, a self-expanding anchor bolt employing rotational energy release includes a guide cylinder 1 and an anchor bolt body 2. A fixing block 3 is fixed to the left end of the guide cylinder 1. The fixing block 3 includes a constant-diameter section, and a tapered section is fixed to the right end of the constant-diameter section. The tapered section is fixedly connected to the guide cylinder 1 via a support rod. The structure of the fixing block 3 facilitates its insertion into the bottom of the borehole.

[0023] like Figure 2 As shown, a slider 4 that slides axially is provided inside the guide cylinder 1, where axial refers to the axial direction of the guide cylinder 1. A compression spring 5 is provided inside the guide cylinder 1 at the left end of the slider 4, and a sliding self-expanding component is provided at the right end of the slider 4. The right end of the slider 4 is a tapered end with a smaller diameter. The right end of the slider 4 is connected to a connecting rod 6, and the right end of the connecting rod 6 passes through the self-expanding component and abuts against the guide block 7. The tapered end facilitates the movement of the self-expanding component.

[0024] like Figure 2-4 As shown, the guide block 7 is placed inside the rotating cylinder 8 and is rotationally locked to the rotating cylinder 8. A limit block 9 is fixed inside the rotating cylinder 8. The guide block 7 is provided with a guide groove 10 that cooperates with the limit block 9. There are two guide grooves 10, which are symmetrically arranged on both sides of the guide block 7. The limit block 9 corresponds to the guide groove 10 one by one. The limit block 9 is located on one side of the guide groove 10, and a baffle 11 is fixed on the other side of the guide groove 10. By setting the baffle 11, the rotation direction and rotation angle of the limit block 9 and the rotating cylinder 8 are restricted. For example, when the rotating cylinder 8 is rotated clockwise, the limit block 9 deviates from the corresponding guide groove 10 and abuts against the baffle 11 of the other guide groove 10, and the guide block 7 and the rotating cylinder 8 are rotationally locked. When the rotating cylinder 8 is rotated counterclockwise, the limit block 9 abuts against the baffle 11 of the corresponding guide groove 10, which indicates that the limit block 9 corresponds to the guide groove 10, the guide block 7 slides axially, and the limit block 9 passes through the guide groove 10.

[0025] The rotating cylinder 8 is located inside the guide cylinder 1, with its right end abutting against the right end of the guide cylinder 1. The rotating cylinder 8 restricts the axial sliding of the guide block 7, while the guide block 7 restricts the movement of the slider 4 via the connecting rod 6. The left end of the anchor rod body 2 passes through the guide cylinder 1 and is fixedly connected to the rotating cylinder 8. The anchor rod body 2 drives the rotating cylinder 8 to rotate in the opposite direction, releasing the lock on the guide block 7 and thus releasing the lock on the slider 4.

[0026] The method of using the self-expanding anchor includes the following steps: placing the guide cylinder 1 in the drill hole, inserting the fixing block 3 into the bottom of the drill hole, and then rotating the anchor body 2 so that the limiting block 9 corresponds to the guide groove 10. The compression spring 5 extends, pushing the slider 4, connecting rod 6 and guide block 7 to move axially. At the same time, the slider 4 pushes the self-expanding component to move axially. When the self-expanding component moves axially, it expands in all directions to play an anchoring role.

[0027] Example 2

[0028] This embodiment is basically the same as Embodiment 1, except that, as Figure 2 As shown, the guide cylinder 1 is provided with two axial grooves 12, which are symmetrically arranged on both sides of the guide cylinder 1. The self-expanding assembly includes a top plate 13 and support rods 14. The top plate 13 is placed inside the guide cylinder 1. The support rods 14 are arranged one-to-one with the axial grooves 12. The support rods 14 are located outside the axial grooves 12. The left end of the support rod 14 is hinged to the top plate 13, and the right end is connected to the guide cylinder 1 through an elastic element 15. The elastic element 15 is a rubber band, which is sleeved on the outside of the guide cylinder 1 and the two support rods 14. An inclined plate 16 is fixed to the inner side of the support rod 14. The left end of the inclined plate 16 passes through the axial groove 12 and is inclined inward.

[0029] When the slider 4 pushes the top plate 13 to move axially to the right, the right end of the axial groove 12 pushes the inclined plate 16 to tilt outward, thereby causing the right end of the support rod 14 to tilt outward, so that the right end of the support rod 14 is tightly attached to the borehole wall, thus playing an anchoring role.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-expanding anchor bolt employing rotational energy release, comprising a guide cylinder and an anchor bolt body, characterized in that: An axially sliding slider is installed inside the guide cylinder. A compression spring is installed at the left end of the slider, and a sliding self-expanding component is installed at the right end. The right end of the slider is connected to a connecting rod, and the right end of the connecting rod passes through the self-expanding component and abuts against the guide block. The guide block is placed inside the rotating cylinder and is rotated and locked with the rotating cylinder. The rotating cylinder is located inside the guide cylinder, and the right end of the rotating cylinder abuts against the right end of the guide cylinder. The left end of the anchor rod body passes through the guide cylinder and is fixedly connected to the rotating cylinder. The anchor rod body drives the rotating cylinder to rotate in the opposite direction. The rotating cylinder releases the lock on the guide block, and the guide block slides axially.

2. A self-expanding anchor bolt employing rotational energy release storage as described in claim 1, characterized in that: An axial groove is provided on the guide cylinder. The self-expanding assembly includes a top plate and a support rod. The top plate is placed inside the guide cylinder, and the support rod is located outside the axial groove. The left end of the support rod is hinged to the top plate, and the right end is connected to the guide cylinder through an elastic element. An inclined plate is fixed on the inner side of the support rod. The left end of the inclined plate passes through the axial groove and is inclined inward.

3. A self-expanding anchor bolt employing rotational energy release storage as described in claim 2, characterized in that: The axial slide groove includes two sections, which are symmetrically arranged on both sides of the guide cylinder. The support rods are arranged in a one-to-one correspondence with the axial slide grooves. The elastic element is a rubber band, which is fitted on the outside of the guide cylinder and the two support rods.

4. A self-expanding anchor bolt employing rotational energy release storage according to any one of claims 1-3, characterized in that: A limit block is fixed inside the rotating cylinder, and a guide groove is provided on the guide block to cooperate with the limit block. When the rotating cylinder is rotated, the limit block deviates from the guide groove, and the guide block and the rotating cylinder are rotated and locked. When the rotating cylinder is rotated in the opposite direction, the limit block corresponds to the guide groove, and the guide block slides axially, and the limit block passes through the guide groove.

5. A self-expanding anchor bolt employing rotational energy release storage as described in claim 4, characterized in that: The guide groove includes two, which are symmetrically arranged on both sides of the guide block. The limiting block corresponds to the guide groove one by one. The limiting block is located on one side of the guide groove, and a baffle is fixed on the other side of the guide groove.

6. A self-expanding anchor bolt employing rotational energy release storage according to claim 1, characterized in that: A fixing block is fixed to the left end of the guide cylinder. The fixing block includes a section of equal diameter, and a tapered section is fixed to the right end of the section of equal diameter.

7. A self-expanding anchor bolt employing rotational energy release storage as described in claim 1, characterized in that: The right end of the slider is tapered, and the diameter of the right end of the tapered end is smaller.

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