CN212179709U

CN212179709U - Anti-falling device for foot line of medium-depth blast hole detonator

Info

Publication number: CN212179709U
Application number: CN202020471537.7U
Authority: CN
Inventors: 梁尔祝; 刘洋; 耿威; 杜威; 白镕宇
Original assignee: Angang Mining Blasting Co ltd
Current assignee: Angang Mining Blasting Co ltd
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2020-12-18
Anticipated expiration: 2030-04-03

Abstract

The utility model discloses a well dark big gun hole detonator foot line safety hook, include: the Y-shaped main body and the lifting cross beam are arranged, two ends of the lifting cross beam are fixedly connected with two opposite side edges of the Y-shaped main body respectively, and a threading round hole is formed in the tail of the Y-shaped main body. The anti-falling device is novel in structure, simple in process, convenient to operate and good in anti-falling effect on the detonator leg wire, can effectively solve the problem that the detonator leg wire is disconnected under various conditions of the medium-length hole, and prevents the anti-explosion safety problem caused by the falling of the detonator leg wire.

Description

Anti-falling device for foot line of medium-depth blast hole detonator

Technical Field

The utility model belongs to the technical field of the open mine perforation blasting, a well dark big gun hole detonator foot line safety hook is related to.

Background

In the process of deep hole blasting construction in a surface mine, after a detonator in a blast hole is connected with an initiating tool, the detonator and the initiating tool are placed at the bottom of the hole, a leg wire of an inner tube of the hole is wound by a rock block outside an orifice of the blast hole and then fixed at a position about 1 meter away from the orifice, and then the working procedures of pesticide spraying, filling and wire connecting are carried out.

In the process of the guniting operation or the filling operation, the detonator leg wire is usually loosened from a rock block due to the factors of personnel operation negligence, mechanical construction and the like, or in a deep water hole, the hole opening rock slag is collapsed due to the overflow of water in the hole, and the detonator leg wire in the hole is brought into the hole by filling materials in the mechanical filling, if the detonator leg wire cannot be taken out from the hole and is connected with an earth surface booster, a blind shot is caused, and hidden troubles and threats are brought to the safety production of mines.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a well dark big gun hole detonator foot line safety hook has the effect of preventing weighing down that retards, can make detonator foot line keep on the downthehole rock sediment that drops, is convenient for collude out with the rope hook on next step, or puts into the cartridge bag and carries out the relay booster, avoids appearing the blind big gun accident.

The utility model provides a well dark big gun hole detonator foot line safety hook, include: the Y-shaped main body and the lifting cross beam are arranged, two ends of the lifting cross beam are fixedly connected with two opposite side edges of the Y-shaped main body respectively, and a threading round hole is formed in the tail of the Y-shaped main body.

The utility model discloses an among the dark big gun hole detonator foot line safety hook, the bottom surface middle part of carrying and drawing the crossbeam is equipped with the breach.

The utility model discloses an among the dark big gun hole detonator leg wire safety hook, the upper portion outside of two sides of Y type main part is equipped with the sawtooth structure, the sawtooth direction sets up downwards.

The utility model discloses an among the dark big gun hole detonator leg wire safety hook, two relative sides of Y type main part are 85 ~ 95 degrees contained angles.

The utility model discloses an among the deep big gun hole detonator leg wire safety hook, Y type main part is made by wide 30mm, thickness 3 mm's engineering plastics.

The utility model discloses a well dark big gun hole detonator foot line safety hook, novel structure, simple process, convenient operation prevents falling effectually to the detonator foot line, can effectively solve detonator foot line problem of falling off the line under the multiple condition of well deep hole, prevents to drop the safe problem of failing to explode that causes because of the detonator foot line.

Drawings

FIG. 1 is a structural diagram of a foot line safety catch for a medium-depth blast hole detonator of the utility model;

FIG. 2 is a state diagram of the middle-depth blast hole detonator foot line safety hook of the utility model;

fig. 3 is another usage state diagram of the middle-depth blast hole detonator foot line falling protector of the utility model.

Detailed Description

As shown in fig. 1, the utility model discloses a well dark big gun hole detonator foot line safety hook, include: the portable type wire drawing machine comprises a Y-shaped main body 1 and a drawing cross beam 2, wherein two ends of the drawing cross beam 2 are fixedly connected with two opposite side edges 11 of the Y-shaped main body 1 respectively, and a threading round hole 13 is formed in the tail 12 of the Y-shaped main body 1.

In specific implementation, a notch 21 is arranged in the middle of the bottom surface of the lifting beam 2. After the falling protector enters the blast hole, when the lifting beam of the falling protector is taken through the rope hook, the rope hook is embedded into the notch, and the lifting beam 2 rises and arches, so that the falling protector and the detonator can be recycled conveniently.

In specific implementation, the outer sides of the upper parts of the two side edges 11 of the Y-shaped main body 1 are provided with saw tooth structures 14, and the saw tooth directions are arranged downwards. The sawtooth structure 14 is used for increasing the friction force on the wall of the blast hole and is designed into a downward sawtooth structure, the downward friction resistance is large, and the upward friction resistance is small. When the falling protector moves by the inward downward pulling force in the hole, the falling protector is restrained by the hole wall to deform to generate pressure on the hole wall so as to generate frictional resistance, the lifting beam provides auxiliary pressure, when the rope hook takes the lifting beam of the falling protector, the two side edges 11 of the Y-shaped main body 1 are retracted due to the action of the upper pulling force and the lower pulling force, the compressive stress on the hole wall is smaller, the frictional resistance is reduced, and the falling protector is convenient to take out.

In specific implementation, two opposite side edges 11 of the Y-shaped main body 1 form an included angle of 85-95 degrees. The Y-shaped main body 1 is made of engineering plastics with the width of 30mm and the thickness of 3 mm.

The utility model discloses an in dark big gun hole detonator foot line safety hook use, after accomplishing the normal construction operation of downthehole detonator, it is fixed to tie a knot behind the threading round hole 13 that passes the 12 afterbody of Y type main part 1 with detonator foot line afterbody. When the detonator leg wire falls off from the stone, because the opening of the falling protector is larger than the diameter of the blast hole 3, if the falling tension is small, the falling protector can be clamped in the hole to prevent the detonator leg wire from falling to the bottom of the hole, as shown in fig. 2.

If the detonator leg wire is affected by the external factors such as the filling material, the orifice rib and the like, and the falling force is greater than the design resistance of the falling protector, the falling protector can slide down for a certain stroke in the blast hole 3 until the falling tension is relieved, and the detonator leg wire is kept in a vertically tightened state above the falling rock slag in the blast hole, as shown in fig. 3. And then the lifting beam 2 is hooked by the rope hook 4 to take the detonator leg wire out of the hole. If the foot line clamp is too tight and can not be pulled out of the hole, the medicine bag can be put in for relay explosion, thereby avoiding the occurrence of blind gun accidents.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the spirit of the present invention, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a well dark big gun hole detonator leg wire safety hook which characterized in that includes: the Y-shaped main body and the lifting cross beam are arranged, two ends of the lifting cross beam are fixedly connected with two opposite side edges of the Y-shaped main body respectively, and a threading round hole is formed in the tail of the Y-shaped main body.

2. The medium-depth blasthole detonator leg wire fall arrestor of claim 1, wherein a notch is formed in the middle of the bottom surface of the lifting beam.

3. The medium-depth blast hole detonator leg wire falling protector according to claim 1, wherein the outer sides of the upper parts of both side edges of the Y-shaped main body are provided with saw tooth structures, and the saw tooth directions are arranged downwards.

4. The medium-depth blast hole detonator foot line safety catch of claim 1, wherein two opposite side edges of the Y-shaped main body form an included angle of 85-95 degrees.

5. The medium-depth blasthole detonator leg wire safety catch of claim 1, wherein the Y-shaped body is made of engineering plastic with a width of 30mm and a thickness of 3 mm.