Anchor cable head explosion prevention device

Abstract

The utility model provides a device for preventing an anchor cable head from being exploded. The device comprises a limiting shell and a fixing part. The top of the limiting shell is open, the bottom of the limiting shell is closed, a plurality of fixing holes are formed in the limiting shell, and the fixing parts can penetrate through the fixing holes to fix the limiting shell to the anchor cable end. Through the arrangement of the limiting shell and the fixing part, the limiting shell can be fixedly arranged on the end head of the anchor cable in a sleeving mode, the effect of protecting the end head of the anchor cable is achieved, and the head of the anchor cable can be effectively prevented from being exploded.

Description

Technical Field

[0001] The utility model relates to the technical field of underground support safety protection in coal mines, in particular to a device for preventing anchor cable head explosion. Background Art

[0002] The application field of anchor cable support technology in engineering is mainly the support of underground coal mine tunnels. As a relatively mature support system, it has been applied to major coal mines. Anchor cable support can effectively control tunnel deformation and realize safe coal mining. The anchor cable support method will still occupy a dominant position in tunnel support for a considerable period of time in the future.

[0003] The end of the anchor cable is exposed in the tunnel. When it is affected by strong dynamic pressure or blasting vibration, the end will experience wire bursting, that is, the anchor cable head will burst. The anchor cable is a Westrule steel strand structure. After wire bursting, each steel wire loses restraint and bursts apart, which will cause the anchor cable to fail to withdraw. The exploded anchor cable wire will also scratch workers or equipment, causing serious safety hazards and economic losses. In addition, the exposed anchor head is often eroded by water and dust, which will also lead to a decrease in the strength of the anchor cable end, resulting in wire slippage and anchor withdrawal, causing the anchor cable support to fail, seriously restricting the safe and efficient recovery of the mine. Utility Model Content

[0004] The technical problem to be solved by the utility model is how to prevent the anchor cable from exploding.

[0005] The utility model solves the above technical problems through the following technical means:

[0006] A device for preventing an anchor cable from exploding comprises a limiting shell (1) and a fixing component (3); the limiting shell (1) is open at the top and closed at the bottom, a plurality of fixing holes (11) are provided on the limiting shell (1), a plurality of fixing components (3) are provided, and each of the fixing components (3) can pass through each fixing hole (11) to fix the limiting shell (1) on the end of the anchor cable.

[0007] Beneficial effect: Through the arrangement of the limiting shell and the fixing component, the limiting shell can be sleeved and fixed on the end of the anchor cable, thereby protecting the end of the anchor cable and effectively preventing the anchor cable from exploding.

[0008] Furthermore, it also comprises a protective sleeve (2), wherein the protective sleeve (2) is open at the top and closed at the bottom, and the protective sleeve (2) is sleeved on the outside of the limiting shell (1).

[0009] Beneficial effects: Through the setting of the protective cover and the secondary protection of the protective cover, firstly, the combined structure of the anchor cable end and the limiting shell can be kept in a closed state, preventing sparks that may be generated due to rigid contact and slippage between the two, causing safety accidents, and playing the role of isolating the air; in addition, the protective cover can prevent the exposed combined structure from being corroded and rusted by water and dust, thereby reducing the friction coefficient of the fastening parts of the two and causing overall failure.

[0010] Furthermore, the limiting shell (1) is made of a rigid material, and the protective sleeve (2) is made of an elastic material.

[0011] Beneficial effect: Through the setting of the protective cover material, it has the flexibility to seal, prevent water and dust.

[0012] Furthermore, the limiting shell (1) is made of stainless steel, and the protective sleeve (2) is a rubber sleeve.

[0013] Furthermore, the material of the protective sleeve (2) is chlorosulfonated polyethylene.

[0014] Beneficial effects: Through the setting of the protective cover material, the chlorosulfonated polyethylene has flame retardant and antistatic properties.

[0015] Furthermore, the protective sleeve (2) is configured as a cone with an open top, and the cone head is a smooth structure.

[0016] Furthermore, the limiting shell (1) is a circular ring structure with a sealed bottom end.

[0017] Furthermore, the bottom end of the limiting shell (1) is arranged as a hollow hemisphere.

[0018] Furthermore, the fixing component (3) is a pre-tightening bolt, and the fixing hole (11) is a threaded hole.

[0019] Furthermore, eight fixing holes (11) are provided on the limiting shell (1) at intervals.

[0020] The advantages of the utility model are:

[0021] The utility model provides a limiting shell and a fixing component, so that the limiting shell can be sleeved and fixed on the end of the anchor cable, thereby protecting the end of the anchor cable and effectively preventing the anchor cable from exploding.

[0022] The utility model provides a protective cover and secondary protection for the protective cover, which can firstly keep the combined structure of the anchor cable end and the limiting shell in a closed state, thereby preventing sparks that may be generated due to rigid contact and slippage between the two, which may cause safety accidents and play a role in isolating the air; in addition, the protective cover can prevent the exposed combined structure from being corroded and rusted by water and dust, thereby reducing the friction coefficient of the fastening parts of the two and causing overall failure.

[0023] The utility model provides the protective cover material, and the elastic material has retractability, which can play the role of sealing, waterproofing and dustproofing.

[0024] The utility model provides the protective cover material so that the chlorosulfonated polyethylene has flame retardant and antistatic properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an assembly diagram of a device for preventing anchor cable head explosion according to a first embodiment of the utility model;

[0026] Figure 2 It is a schematic diagram of a limiting shell and a protective sleeve in a device for preventing anchor cable head explosion according to a first embodiment of the utility model. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0028] Embodiment 1

[0029] like Figure 1 As shown, this embodiment provides a device for preventing anchor cable head explosion, including a limiting shell 1, a protective sleeve 2, and a fixing component 3.

[0030] like Figure 1 , Figure 2 As shown, the limiting shell 1 is a circular ring structure with a sealed bottom end. The bottom end of the limiting shell 1 in this embodiment is a hollow hemisphere. A plurality of fixing holes 11 are provided on the limiting shell 1. Eight fixing holes 11 are spaced apart on the limiting shell 1 in this embodiment. The limiting shell 1 is made of a rigid material. The limiting shell 1 in this embodiment is made of stainless steel. A plurality of fixing components 3 are provided, and each fixing component 3 can pass through each fixing hole 11 to fix the limiting shell 1 on the end of the anchor cable. The fixing component 3 in this embodiment is a pre-tightening bolt, and the fixing hole 11 is a threaded hole.

[0031] like Figure 1 , Figure 2As shown, the protective sleeve 2 is a cone with an opening at the top. The protective sleeve 2 in this embodiment is a rubber sleeve with a smooth cone head structure, which is retractable and can play a role in sealing, waterproofing and dustproofing. The material of the protective sleeve 2 is chlorosulfonated polyethylene, which has flame retardant and antistatic properties. The protective sleeve 2 is sleeved on the outside of the limiting shell 1. Through the secondary protection of the protective sleeve 2, the combined structure of the anchor cable end and the limiting shell 1 can be placed in a closed state to prevent sparks that may be generated due to rigid contact and slippage between the two, causing safety accidents, and playing a role in isolating the air. In addition, the protective sleeve 2 can prevent the exposed combined structure from being corroded and rusted by water and dust, thereby reducing the friction coefficient of the fastening parts of the two and causing overall failure.

[0032] After normal anchor cable support, the limiting shell 1 is put on the exposed anchor cable end, the pre-tightening bolt is passed through the threaded hole and contacts the anchor cable end, the anchor cable end and the limiting shell 1 are pre-tightened and limited by rotating the pre-tightening bolt, and then the protective cover 2 is embedded on the outside of the pre-tightened limiting shell 1 and pushed to the bottom of the protective cover 2 to protect the anchor cable end.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for preventing anchor cable head explosion, characterized in that: It comprises a limiting shell (1) and a fixing component (3); The limiting shell (1) is open at the top and closed at the bottom. A plurality of fixing holes (11) are provided on the limiting shell (1). A plurality of fixing components (3) are provided. Each fixing component (3) can pass through each fixing hole (11) to fix the limiting shell (1) on the end of the anchor cable.

2. The device for preventing anchor cable head explosion according to claim 1, characterized in that: It also comprises a protective sleeve (2), the protective sleeve (2) being open at the top and closed at the bottom, and the protective sleeve (2) being sleeved on the outside of the limiting shell (1).

3. The device for preventing anchor cable head explosion according to claim 2, characterized in that: The limiting shell (1) is made of a rigid material, and the protective sleeve (2) is made of an elastic material.

4. The device for preventing anchor cable head explosion according to claim 3 is characterized in that: The limiting shell (1) is made of stainless steel, and the protective sleeve (2) is a rubber sleeve.

5. The device for preventing anchor cable head explosion according to claim 3, characterized in that: The material of the protective sleeve (2) is chlorosulfonated polyethylene.

6. The device for preventing anchor cable head explosion according to claim 2, characterized in that: The protective sleeve (2) is a cone with an opening at the top, and the cone head is a smooth structure.

7. The device for preventing anchor cable head explosion according to claim 1, characterized in that: The limiting shell (1) is a circular ring structure with a sealed bottom end.

8. The device for preventing anchor cable head explosion according to claim 7, characterized in that: The bottom end of the limiting shell (1) is arranged as a hollow hemisphere.

9. The device for preventing anchor cable head explosion according to claim 1, characterized in that: The fixing component (3) is a pre-tightening bolt, and the fixing hole (11) is a threaded hole.

10. The device for preventing anchor cable head explosion according to claim 1, characterized in that: The limiting shell (1) is provided with eight fixing holes (11) at intervals.

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