Anchoring agent fall arrestor

Abstract

The utility model provides an anchor agent anti -fall device, including anti -fall elastic sheet, flow guide groove, sawtooth and tine, the tine of anti -fall device is in the anchor rod enters anti -fall device and extrusion anchor agent time, makes anchor agent under the action of pressure and tine effect, easy to anchor agent breakage, three anti -fall elastic sheets evenly are arranged in anchor agent anti -fall device cylinder outside, in the anchor rod hole hole inside plays the role of anti -fall, prevents anchor agent from falling from anchor rod hole hole, sawtooth holder sets up in the center of anchor agent anti -fall device, sawtooth holder can be in the tail end of anchor agent, sawtooth holder breaks in the process of anchor rod entering anti -fall device, does not hinder anchor rod to enter, flow guide groove distributes in the inside of anti -fall device, can guide liquid to flow out when anchor agent breaks, this anchor agent anti -fall device installation does not need additional complex equipment, can realize anchor agent and anchor rod step -by -step installation, promotes the convenience of anchor rod support.

Description

TECHNICAL FIELD

[0001] The utility model relates to the device for preventing anchoring agent from falling in coal mine underground, concretely is a kind of anchoring agent anti-falling device. BACKGROUND

[0002] In the process of coal mine excavation, in order to prevent the roadway surrounding rock from falling off, anchor net is needed to protect the surrounding rock, and the anchor rod and anchoring agent are used for reinforcement;The existing anchor rod support installation steps are: punching-hole-removing floating dust and water in hole-anchoring agent installation-anchoring agent is sent into hole bottom by anchor rod-stirring-waiting for solidification-hanging anchor net and then tray locking nut;However, in the process of vertical top anchor rod installation, anchoring agent is easy to fall from anchor rod hole due to gravity, and multiple people need to operate cooperatively and keep continuous operation, which increases the difficulty of support construction and affects the support efficiency.

[0003] In view of the above problems, the application number 202410107680.0 invention patent discloses a kind of " external anchoring agent anchor rod and its installation method", the scheme is by being placed in plastic tube outside anchoring agent, set corresponding slurry hole and stop slurry device, simplify the process of installing anchoring agent on site.The scheme improves anchoring efficiency to some extent, but its structure design still needs the accurate cooperation of multiple components, and involves complex installation steps and equipment, which brings certain inconvenience to on-site operation;In order to solve the problems of anchoring agent installation difficulty and complex operation in the prior art, an anchoring agent anti-falling device is proposed. SUMMARY

[0004] The existing anchor rod support technology has problems such as easy sliding of anchoring agent during installation, low construction efficiency, etc., in order to overcome these deficiencies, the utility model provides an anchoring agent anti-falling device.The anti-falling device effectively suppresses the sliding of anchoring agent due to gravity during the installation process in the anchor rod hole through structural design, and simplifies the anchoring agent installation process.Compared with the traditional way, it reduces the dependence on multi-person collaborative construction, effectively improves the construction efficiency, and provides convenience for support operation.In addition, the anti-falling device has good adaptability and can seamlessly connect with the existing anchor rod support system without the need for complex special equipment.

[0005] When the anchoring agent installation operation is performed, the anchoring agent anti-falling device is sleeved on the tail end of the anchoring agent in advance, the head end of the anchoring agent is sent into the anchor rod hole first, when the tail end of the anchoring agent carries the anti-falling device to the hole opening, the anti-falling spring of the anti-falling device is in close contact with the inner wall of the anchor rod hole and acts, thereby forming a reliable blocking mechanism and eliminating the risk of the anchoring agent sliding out of the hole. The anchoring agent anti-falling device is made of non-metallic material by an integrated forming process, which does not interfere with the normal installation process of the anchor rod. Its overall structure is compact and the operation process is simple and easy to understand, which improves the convenience in actual use. In order to achieve the above purpose, the following technical solutions are adopted: an anchoring agent anti-falling device, comprising a flow guide groove, an anti-falling spring, a sawtooth holder and a sharp tooth; the three anti-falling springs are evenly arranged on the outer side of the anchoring agent anti-falling device, and the anti-falling spring is attached to the outer wall of the anti-falling device under the action of external force; the sawtooth holder is arranged at the center of the anchoring agent anti-falling device, and the sawtooth holder can be sleeved on the tail end of the anchoring agent.

[0006] Further, the three anti-falling springs are evenly arranged on the outer side of the anchoring agent anti-falling device, which can be in contact with the inner wall of the anchor rod hole, effectively hold the anchoring agent and prevent the anchoring agent from falling from the anchor rod hole. The anti-falling spring of the anti-falling device is designed for one-way action, i.e. only allows the anchoring agent to move in the direction of the bottom of the anchor rod hole; the anti-falling device is made of non-metallic material by an integrated forming process, which does not hinder the anchor rod from being sent into the bottom of the anchor rod hole during the installation of the anchor rod; when the anchor rod is sent into the bottom of the anchor rod hole, it does not affect the normal installation depth and strength of the anchor rod, ensuring the smooth completion of the installation process.

[0007] Further, the sharp tooth of the anchoring agent anti-falling device causes the anchoring agent to deform and act on the sharp tooth under pressure when the anchor rod enters the anti-falling device and presses the anchoring agent, which makes the anchoring agent easy to break. The sharp tooth is located at the top end of the anti-falling device and is evenly distributed between the three anti-falling springs.

[0008] Further, the inner part of the anchoring agent anti-falling device is distributed with twelve flow guide grooves, which can make the anchoring agent flow out smoothly after the anchoring agent package is broken, flow towards the anchor rod and tightly combine with the anchor rod, thereby enhancing the anchoring strength.

[0009] Further, the sawtooth holder of the anchoring agent anti-falling device is a three-prong structure, and the diameter of the sawtooth holder is greater than the diameter of the anchoring agent; before the installation of the anchoring agent, the sawtooth holder can be installed together with the anchoring agent; during the installation of the anchoring agent, the head end of the anchoring agent is sent into the anchor rod hole first, and the tail end of the anchoring agent is installed into the anchor rod hole together with the anti-falling device, which simplifies the construction operation and improves the convenience of installation.

[0010] Further, the head end and the tail end of the anchoring agent are only for convenience of description.

[0011] The utility model provides a kind of anchoring agent anti-falling device, with the following beneficial effects: to adapt to the need of downhole anchor rod support, and anchoring agent anti-falling device is installed in anchoring agent tail end, the steps of installing top anchor rod can be decomposed as follows: ① punch-hole-gas removal floating dust and accumulated water in hole-anchoring agent installation-anchoring agent anti-falling device installation (anchoring agent does not fall off due to anchoring agent anti-falling device effect) ;② find anchoring agent hole position, use anchor rod to send anchoring agent into hole bottom-stirring-wait solidification-hang anchor net after tray locking nut;Anchoring agent anti-falling device is used to carry out anchor rod support in well, reduce the need of many manual collaborative operation of anchoring agent installation, realize the step-by-step installation of anchoring agent and anchor rod, greatly improve the anchor rod support efficiency of underground roadway, reduce the labor intensity of worker, it is convenient to support, with good practical application value. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is three-dimensional view for the utility model anchoring agent anti-falling device.

[0013] Fig. 2 It is plan view for the utility model anchoring agent anti-falling device.

[0014] Fig. 3 It is anchoring agent anti-falling device connection view for the utility model.

[0015] Fig. 4 It is anchoring agent anti-falling device installation in top anchor rod hole main view for the utility model.

[0016] In the drawing: 1-anti-falling device, 11-anti-falling sheet, 12-sawtooth support, 13-flow guide groove, 14-tine, 2-anchoring agent, 3-anchor rod hole, 31-hole opening, 32-hole inner wall, 4-anchor rod. IMPLEMENTATION

[0017] The embodiments of the utility model are further described in detail in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0018] As Figs. 1 to 4 Indicated, the utility model provides technical scheme: a kind of anchoring agent anti-falling device 1, including anti-falling sheet 11, sawtooth support 12, flow guide groove 13 and tine 14;Three anti-falling sheets 11 are evenly arranged in the cylindrical outer side of anti-falling device 1.Anti-falling sheet 11 can adhere to the outer wall of anti-falling device 1 under the action of external force, sawtooth support 12 is arranged in the center of anchoring agent 2 anti-falling device 1, and sawtooth support 12 can be sleeved in the tail end of anchoring agent 2;When anchoring agent 2 is installed, first, the tail end of anchoring agent 2 is sleeved into the sawtooth support 12 of anti-falling device 1, the head end of anchoring agent 2 is sent into anchor rod hole 3, and the tail end of anchoring agent 2 is installed into anchor rod hole 3 together with anti-falling device 1, after three anti-falling sheets 11 enter anchor rod hole 3, anchoring agent 2 can be supported, to prevent anchoring agent 2 from sliding out of anchor rod hole 3 and falling.

[0019] The three anti-falling springs 11 of the anti-falling device 1 are evenly arranged around the anti-falling device 1, can simultaneously contact the inner wall 32 of the hole of the anchor rod 4, effectively hold the anchoring agent 2, and prevent the anchoring agent 2 from falling from the anchor rod hole 3; the anti-falling springs 11 of the anti-falling device 1 are designed for one-way action, that is, only the anchoring agent 2 is allowed to move in the direction of the hole bottom of the anchor rod hole 3.

[0020] The sawtooth holder 12 of the anchoring agent 2 anti-falling device 1 is in a three-pronged shape, the inner hole diameter of the sawtooth holder 12 is greater than the diameter of the anchoring agent 2, and the anchoring agent 2 is sleeved into the sawtooth holder 12.

[0021] The anchoring agent 2 anti-falling device 1 is integrally formed by using a non-metal material, and the anti-falling device 1 does not hinder the anchor rod 4 from being sent into the hole bottom of the anchor rod hole 3 during the installation of the anchor rod 4; when the anchor rod 4 is sent into the hole bottom of the anchor rod hole 3, the anti-falling device is crushed due to extrusion, does not affect the normal installation depth and installation strength of the anchor rod 4, and ensures the smooth completion of the installation process.

[0022] The tines 14 of the anti-falling device 1 make the anchoring agent 2 produce a stacking deformation under the action of pressure when the anchor rod 4 enters the anti-falling device 1 and extrudes the anchoring agent 2, and the anchoring agent 2 is easily broken, and the tines 14 located at the top end of the anti-falling device 1 can prevent the anchoring agent 2 from being broken in advance during the combination of the anchoring agent 2 and the anti-falling device 1.

[0023] The inner part of the anchoring agent 2 anti-falling device 1 is distributed with twelve flow guide grooves 13, which can make the anchoring agent smoothly flow out after the anchoring agent 2 package is broken, flow to the anchor rod 4 direction and be closely combined with the anchor rod 4, and enhance the anchoring strength.

Claims

1. An anchoring agent fall arrestor, comprising a fall arrestor spring (11), a serrated support (12), a guide groove (13), and sharp teeth (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) move inward during the fixing process. The serrated support (12) is evenly distributed inside the anti-fall device (1). The serrated support (12) of the anti-fall device (1) can be fitted onto the tail end of the anchoring agent (2). The sharp teeth (14) are located at the top of the anti-fall device and are evenly distributed among the three anti-fall clips (11).

2. The anchoring agent fall arrestor according to claim 1, characterized in that: The fall arrestor (1) has three fall arrestor springs (11) evenly arranged around its perimeter, which can contact the inner wall (32) of the anchor bolt (4) hole, effectively supporting the anchoring agent (2) and preventing it from falling out of the anchor bolt hole (3). The fall arrestor springs (11) of the fall arrestor (1) are designed for one-way action, that is, only allowing the anchoring agent (2) to move towards the bottom of the anchor bolt hole (3). The fall arrestor (1) is made of non-metallic material in one piece, so when the anchoring agent (2) is put in, the fall arrestor (1) will not affect the entry of the anchoring agent (2). During the installation of the anchor bolt (4), the fall arrestor (1) will not obstruct the process. Anchor rod (4) is inserted into the bottom of anchor rod hole (3); when anchor rod (4) is inserted into the bottom of anchor rod hole (3), the saw tooth support (12) of the fall arrestor (1) will break due to compression, without affecting the normal installation depth and installation strength of anchor rod (4), ensuring the smooth completion of the installation process; when anchor rod (4) enters fall arrestor (1) and squeezes anchoring agent (2), the sharp teeth (14) of the fall arrestor (1) cause the anchoring agent (2) to undergo stacking deformation under pressure and act with the sharp teeth (14), causing the anchoring agent (2) to break. The sharp teeth (14) are located at the top of fall arrestor (1) and are evenly distributed between the three fall arrestor pieces (11).

3. The anchoring agent fall arrestor according to claim 1, characterized in that: The sawtooth support (12) is trident-shaped, and the diameter of the sawtooth support (12) is larger than the diameter of the anchoring agent (2). Before the anchoring agent (2) is installed, the sawtooth support (12) can be installed together with the anchoring agent (2). When the anchoring agent (2) is installed, the first end of the anchoring agent (2) is first sent into the anchor hole (3), and the tail end of the anchoring agent (2) is installed into the anchor hole (3) together with the fall arrester (1), which simplifies the construction operation and improves the convenience of installation.

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