Anchoring agent falling protector

Abstract

The utility model discloses an anchoring agent falling protector, and relates to the technical field of underground coal mine supporting equipment. The anti-falling device comprises an anti-falling elastic piece, a central columnar hole, an elastic piece protection groove and a reflective marking sticker. The three anti-falling elastic pieces are evenly arranged on the outer side of the anti-falling device cylinder and can be retracted into the elastic piece protection grooves under the action of external force. The center columnar hole is formed in the center of the falling protector, the diameter of the center columnar hole is larger than that of an anchoring agent, and the tail end of the anchoring agent is sleeved with the center columnar hole. The reflective marking sticker is adhered to the tail end of the falling protector; the anti-falling elastic piece is designed to act in a one-way mode. The falling protector is made of non-metal materials in an integrated forming mode. The utility model is used for solving the problem that the anchoring agent is easy to fall from an anchor rod hole during installation.

Description

Technical Field

[0001] This utility model relates to a device for preventing anchoring agent from falling when installing top anchor bolts in underground coal mines, specifically an anchoring agent anti-fall device. Background Technology

[0002] Anchoring agent is a key material used in coal mines to fix anchor bolts and anchor cables. Its function is to fix and bond the anchor bolts or anchor cables in the roadway holes to prevent the surrounding rock from falling off. The standard steps for existing anchor bolt support include: drilling holes, using compressed air to remove floating dust and water from the holes, installing anchoring agent, using anchor bolts to send the anchoring agent to the bottom of the holes, stirring, waiting for solidification, and finally hanging the anchor mesh and tightening the tray and nuts.

[0003] However, in the above process, the anchoring agent is prone to falling out of the anchor hole before it is sent to the bottom of the hole due to gravity during the installation of the anchor bolt. This problem requires multiple people to work together and maintain continuous operation during the construction process, which significantly increases the difficulty and complexity of the support construction and has an adverse effect on the support efficiency.

[0004] To address the issue of anchoring agents easily falling off, existing technologies have proposed several solutions. For example, invention patent application number 202410107680.0 discloses an "external anchoring agent anchor rod and its installation method"; this technical solution simplifies the on-site installation process by pre-exposing the anchoring agent inside a plastic tube and setting a grout outlet and a grout stop device on the plastic tube. Although this solution helps improve anchoring efficiency to some extent, it still has limitations: the structure requires precise coordination of multiple components, its installation steps are relatively complex, and it places high demands on the coordination of on-site operating equipment, which increases the complexity and cost of operation to some extent.

[0005] Therefore, given the aforementioned shortcomings of existing technologies, there is an urgent need for a new solution that is simpler in structure, can effectively prevent anchoring agent from falling off, and is easy to operate on-site. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this utility model provides an anchoring agent fall arrestor.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an anchoring agent fall arrestor, comprising a fall arresting spring, a central cylindrical hole, a spring protection groove, and a reflective label; the three fall arresting springs are evenly arranged on the outer side of the cylinder of the anchoring agent fall arrestor; the fall arresting springs can be retracted into the spring protection groove under external force; the central cylindrical hole is located at the center of the anchoring agent fall arrestor; the central cylindrical hole is used to fit over the tail end of the anchoring agent; the reflective label is pasted on the tail end of the anchoring agent fall arrestor.

[0008] Furthermore, the anti-fall shrapnel is designed for one-way action, meaning that the anchoring agent is only allowed to slide towards the hole opening.

[0009] Furthermore, the anchoring agent fall arrestor is made of non-metallic material in one piece.

[0010] Furthermore, the diameter of the central columnar hole is larger than the diameter of the anchoring agent.

[0011] Furthermore, when the anchor bolt is inserted into the bottom of the anchor bolt hole, the anchoring agent anti-fall device will break due to compression.

[0012] This utility model provides an anchoring agent fall arrestor, which has the following beneficial effects:

[0013] 1) High reliability of anti-fall protection: Through the contact of three anti-fall springs with the inner wall of the anchor bolt hole, radial support is provided for the anchoring agent, effectively overcoming its own weight and preventing it from falling during installation.

[0014] 2) Ease of operation: The one-way action design and recyclable characteristics of the anti-fall shrapnel make it easy for the anti-fall device and anchoring agent to be pushed towards the bottom of the hole without the need for immediate coordinated pushing of the anchor rod. This realizes the one-way movement of the anti-fall device and anchoring agent in the hole and provides a structural basis for step-by-step installation.

[0015] 3) Good terminal compatibility: The fall arrestor is made of non-metallic material in one piece, so that after it has completed its fall arrest function, it will break when the anchor rod is installed to the bottom of the hole, without affecting the final installation depth and anchoring quality of the anchor rod.

[0016] 4) Excellent downhole positioning visibility: The reflective markers provide optical assistance for identifying the location of holes with installed anchoring agent in low-light downhole environments, solving the problem of finding hole locations in dim environments. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of the anchoring agent fall arrestor of this utility model.

[0018] Figure 2 This is a top view of the anchoring agent fall arrestor of this utility model.

[0019] Figure 3 This is a view showing the connection between the anchoring agent fall arrestor and the anchoring agent of this utility model.

[0020] Figure 4 The front view shows the anchoring agent fall arrestor of this utility model installed in the top anchor bolt hole.

[0021] In the diagram: 1. Fall arrestor; 11. Fall arrestor shrapnel; 12. Central cylindrical hole; 13. Shrapnel protection groove; 14. Reflective marking sticker; 2. Anchoring agent; 3. Anchor bolt hole; 31. Hole opening; 32. Hole inner wall; 4. Anchor bolt; Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] like Figures 1 to 4 As shown, this utility model provides an anchoring agent fall arrestor, including fall arresting springs 11, a central cylindrical hole 12, a spring protection groove 13, and reflective marking stickers 14; the three fall arresting springs 11 are evenly arranged on the outer side of the cylinder of the fall arrestor 1. The fall arresting springs 11 can be retracted into the spring protection groove 13 under the action of external force; the central cylindrical hole 12 is located at the center of the fall arrestor 1; the diameter of the central cylindrical hole 12 is larger than the diameter of the anchoring agent 2, and is used to fit over the tail end of the anchoring agent 2; the reflective marking stickers 14 are pasted on the tail end of the fall arrestor 1.

[0024] During installation, the anchoring agent 2 with the fall arrestor 1 attached is inserted into the hole opening 31; the fall arrestor 11 contacts the inner wall 32 of the anchor hole to form radial support.

[0025] The anti-fall shrapnel 11 is designed for one-way action, and its structure is configured to allow the anchoring agent 2 to move only towards the bottom of the anchor hole 3.

[0026] The fall arrestor 1 is made of non-metallic material in one piece. During the process of the anchor rod 4 reaching the bottom of the anchor bolt hole 3, the fall arrestor 1 breaks due to compression.

Claims

1. An anchoring agent fall arrestor, comprising a fall arresting spring (11), a central cylindrical hole (12), a spring protection groove (13), and a reflective marker (14), characterized in that: Three anti-fall clips (11) are evenly arranged on the outside of the cylinder of the anti-fall device (1). The anti-fall clips (11) can be retracted into the clip protection groove (13) under the action of external force. The central columnar hole (12) is set in the center of the anti-fall device (1). The central columnar hole (12) is used to be fitted onto the tail end of the anchoring agent (2). The reflective marking sticker (14) is pasted on the tail end of the anti-fall device (1).

2. The anchoring agent fall arrestor according to claim 1, characterized in that: The anti-fall shrapnel (11) is designed for one-way action, meaning that the anchoring agent (2) is only allowed to slide towards the hole opening (31).

3. The anchoring agent fall arrestor according to claim 1, characterized in that: The diameter of the central columnar hole (12) is larger than the diameter of the anchoring agent (2).

4. The anchoring agent fall arrestor according to claim 1, characterized in that: The fall arrestor (1) is made of non-metallic material in one piece. When the anchor rod (4) is inserted into the bottom of the anchor rod hole (3), the fall arrestor (1) will break due to compression.

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