Energy storage type self-expansion anchor rod

Abstract

The utility model provides an energy storage type self-expansion anchor rod which comprises a guide cylinder, an expansion cylinder and an anchor rod body, the expansion cylinder is located at the right end of the guide cylinder, the left end of the anchor rod body is arranged in the guide cylinder and fixedly connected with the guide cylinder, the right end of the anchor rod body penetrates through the expansion cylinder, and the anchor rod body is sleeved with a sliding guide block. The right end of the guide block is a conical end and abuts against the left end of the expansion cylinder, the left end of the guide block is arranged in the guide cylinder, a first compression spring is arranged between the guide block and the left end of the guide cylinder, and a locking mechanism is arranged on the guide cylinder and used for locking movement of the guide block. Through cooperation of the first compression spring, the guide block, the expansion cylinder and the locking mechanism, rapid anchoring can be achieved, and construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of expansion anchor rod, especially to an energy storage type self-expanding anchor rod. BACKGROUND

[0002] After the completion and cleaning of the hole or high slope drilling, the self-expanding anchor rod is inserted into the drilling by adopting the process of inserting the rod first and then grouting, the fixing block is inserted into the bottom of the drilling, and then anchoring is realized through the self-expanding structure to fix the anchor rod in the drilling. The existing self-expanding anchor rod, such as Chinese patent document CN216342256U, needs to rotate the threaded pull rod on site, and then the wedge-shaped nut is driven by the threaded pull rod to approach the conical expansion structure, thereby realizing anchoring. However, the self-expanding anchor rod cannot realize rapid anchoring, which affects the construction efficiency. SUMMARY

[0003] The utility model provides an energy storage type self-expanding anchor rod, which can realize rapid anchoring and improve the construction efficiency through the cooperation of the first compression spring, the guide block, the expansion cylinder and the locking mechanism.

[0004] The technical scheme of the utility model is as follows: an energy storage type self-expanding anchor rod, comprising a guide cylinder, an expansion cylinder and an anchor rod body, the expansion cylinder is located at the right end of the guide cylinder, the left end of the anchor rod body is placed in the guide cylinder and is fixedly connected with the guide cylinder, the right end of the anchor rod body penetrates through the expansion cylinder, a sliding guide block is sleeved on the anchor rod body, the right end of the guide block is a conical end and abuts against the left end of the expansion cylinder, the left end of the guide block is placed in the guide cylinder, a first compression spring is arranged between the left end of the guide block and the left end of the guide cylinder, a locking mechanism is arranged on the guide cylinder, and the locking mechanism is used for locking the movement of the guide block.

[0005] Further, the locking mechanism comprises a locking shell fixed to the outer wall of the guide cylinder, a locking pin radially sliding in the locking shell, a locking groove on the guide block matched with the locking pin, the inner end of the locking pin penetrating through the second compression spring and the guide cylinder in sequence and placed in the locking groove, an axially sliding baffle on the locking shell, the baffle connected with the traction rope, and the outer end of the locking pin abutting against the baffle.

[0006] Further, the left end of the guide cylinder is provided with a fixing block, the fixing block comprises an equal-diameter section, a conical section is arranged at the right end of the equal-diameter section, the right end of the conical section has a larger diameter, and the conical section is fixedly connected with the guide cylinder through a connecting rod.

[0007] Further, the left end of the expansion cylinder is uniformly distributed with slotted joints in the circumferential direction, and each slotted joint is arranged in the axial direction.

[0008] Further, the guide cylinder, the expansion cylinder and the anchor rod body are coaxially arranged.

[0009] Further, the guide block is an I-shaped block, and the locking groove is a groove on the I-shaped block.

[0010] Furthermore, reinforcing ribs are fixed between the outer wall of the locking shell and the guide cylinder.

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

[0012] After the locking mechanism releases the guide block's restriction, the first compression spring pushes the guide block to the right, causing the expansion cylinder to expand circumferentially and fixing the anchor rod to the borehole wall. This enables rapid anchoring and improves construction efficiency.

[0013] The locking mechanism of this utility model releases the restriction on the locking pin by pulling the baffle with a traction rope, thereby releasing the restriction on the guide block. The overall operation is quick and convenient, and the structure is simple, which further facilitates rapid anchoring. 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 for Figure 2 A magnified view of part A in the image.

[0018] Guide cylinder 1, expansion cylinder 2, anchor bolt body 3, guide block 4, slotted seam 5, first compression spring 6, locking mechanism 7, fixing block 8, locking shell 9, reinforcing rib 10, locking pin 11, locking groove 12, second compression spring 13, baffle 14, traction rope 15. Detailed Implementation

[0019] 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.

[0020] Example 1

[0021] like Figures 1-2As shown, an energy-storing self-expanding anchor bolt includes a guide cylinder 1, an expansion cylinder 2, and an anchor bolt body 3. The expansion cylinder 2 is located at the right end of the guide cylinder 1, and the left end of the anchor bolt body 3 is placed inside the guide cylinder 1 and fixedly connected to the guide cylinder 1. The right end of the anchor bolt body 3 passes through the expansion cylinder 2. The guide cylinder 1, the expansion cylinder 2, and the anchor bolt body 3 are arranged coaxially.

[0022] A sliding guide block 4 is fitted onto the anchor bolt body 3. The guide block 4 is an I-shaped block with a groove in the middle. The right end of the guide block 4 is a tapered end, which abuts against the left end of the expansion cylinder 2. The left end of the expansion cylinder 2 has slots 5 evenly distributed circumferentially, and each slot 5 is set axially.

[0023] The left end of the guide block 4 is placed inside the guide cylinder 1. A first compression spring 6 is provided between the guide block 4 and the left end of the guide cylinder 1. The first compression spring 6 is fitted onto the anchor body 3. A locking mechanism 7 is provided on the guide cylinder 1. The locking mechanism 7 is used to lock the movement of the guide block 4. After the locking mechanism 7 releases the lock on the guide block 4, the guide block 4 moves to the right under the action of the first compression spring 6. Its conical end is inserted into the expansion cylinder 2, causing the expansion cylinder 2 to spring open from the slot 5 to all sides, thereby firmly fixing the anchor body 3 to the borehole wall and playing an anchoring role.

[0024] A fixing block 8 is provided at the left end of the guide cylinder 1. The fixing block 8 includes a constant diameter section, and a tapered section is fixed at the right end of the constant diameter section. The right end of the tapered section has a larger diameter and is fixedly connected to the guide cylinder 1 by a connecting rod. The structure of the fixing block 8 makes it easy to insert the fixing block 8 into the bottom of the borehole.

[0025] Example 2

[0026] This embodiment is basically the same as Embodiment 1, except that: Figure 2 and 3 As shown, the locking mechanism 7 includes a locking shell 9. A reinforcing rib 10 is fixed between the outer wall of the locking shell 9 and the guide cylinder 1, thereby fixing the locking shell 9 to the outer wall of the guide cylinder 1. A radially sliding locking pin 11 is provided inside the locking shell 9, the radial direction being the radial direction of the guide cylinder 1. A locking groove 12 is provided on the guide block 4 to cooperate with the locking pin 11. The locking groove 12 is a groove on an I-shaped block. The inner end of the locking pin 11 passes through the second compression spring 13 and the guide cylinder 1 in sequence and is placed in the locking groove 12. An axial slot is provided on the locking shell 9, and an axially sliding baffle 14 is provided in the axial slot, the axial direction being the axial direction of the guide cylinder 1. The baffle 14 is connected to the traction rope 15, and the outer end of the locking pin 11 abuts against the baffle 14. The baffle 14 restricts the radial outward movement of the locking pin 11, thereby limiting the movement of the guide block 4.

[0027] Place the guide cylinder 1 and expansion cylinder 2 into the borehole, and insert the fixing block 8 into the bottom of the borehole. Then pull the traction rope 15 to move the baffle 14 axially to the right, releasing the restriction on the locking pin 11. Under the action of the second compression spring 13, the locking pin 11 disengages from the locking groove 12, releasing the restriction on the guide block 4. Under the action of the first compression spring 6, the guide block 4 moves to the right, and its conical end is inserted into the expansion cylinder 2, causing the expansion cylinder 2 to spring open from the slot 5 to all sides, thereby firmly fixing the anchor rod body 3 to the borehole wall and playing an anchoring role.

[0028] 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 energy storage anchor bolt, characterized in that: The device includes a guide cylinder, an expansion cylinder, and an anchor rod body. The expansion cylinder is located at the right end of the guide cylinder. The left end of the anchor rod body is placed inside the guide cylinder and is fixedly connected to it. The right end of the anchor rod body passes through the expansion cylinder. A sliding guide block is fitted on the anchor rod body. The right end of the guide block is tapered and abuts against the left end of the expansion cylinder. The left end of the guide block is placed inside the guide cylinder. A first compression spring is provided between the guide block and the left end of the guide cylinder. A locking mechanism is provided on the guide cylinder to lock the movement of the guide block.

2. The energy-storing self-expanding anchor bolt according to claim 1, characterized in that: The locking mechanism includes a locking housing, which is fixed to the outer wall of the guide cylinder. A radially sliding locking pin is provided inside the locking housing. A locking groove that mates with the locking pin is provided on the guide block. The inner end of the locking pin passes through the second compression spring and the guide cylinder in sequence and is placed in the locking groove. An axially sliding baffle is provided on the locking housing. The baffle is connected to the traction rope. The outer end of the locking pin abuts against the baffle.

3. A self-expanding energy storage anchor bolt according to claim 1 or 2, characterized in that: A fixing block is provided at the left end of the guide cylinder. The fixing block includes a constant diameter section. A tapered section is provided at the right end of the constant diameter section. The right end of the tapered section has a larger diameter and is fixedly connected to the guide cylinder by a connecting rod.

4. The energy-storing self-expanding anchor bolt according to claim 1, characterized in that: The left end of the expansion cylinder has circumferentially distributed slots, and each slot is set along the axial direction.

5. The energy-storing self-expanding anchor bolt according to claim 1, characterized in that: The guide cylinder, expansion cylinder, and anchor bolt body are arranged on the same axis.

6. The energy-storing self-expanding anchor bolt according to claim 1, characterized in that: The guide block is an I-shaped block, and the locking groove is a groove on the I-shaped block.

7. The energy-storing self-expanding anchor bolt according to claim 2, characterized in that: A reinforcing rib is fixed between the outer wall of the locking shell and the guide cylinder.

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