CN210892899U

CN210892899U - Mine blasting collapse prevention device

Info

Publication number: CN210892899U
Application number: CN201922031483.2U
Authority: CN
Inventors: 赵明生; 刘露; 胡娟新; 李�杰; 李想; 姚茨
Original assignee: Poly Xinlian Blasting Engineering Group Co Ltd
Current assignee: Poly Xinlian Blasting Engineering Group Co Ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-06-30
Anticipated expiration: 2029-11-22

Abstract

The utility model discloses a mine blasting anti-collapse device relates to mine blasting technical field, and when connecting each other to current mine blasting is with the protection network that prevents collapsing of earth and stone, the dynamics that the massif collapsed and forms caused the impact to the junction of protection network easily and cause the junction fracture, and the protection network when coiling the connection, and the tip of protection network lacks fixing device, the problem of outwards scattering easily, proposes following scheme now, including connecting piece, first protection network and second protection network, the surface distribution fixedly connected with major loop body of connecting piece. The utility model discloses a design of connecting piece, the major loop body and interior ring member is convenient for fasten first protection network and second protection network and is connected, and because the distribution quantity of the major loop body on the connecting piece has a plurality ofly for be connected between first protection network and the second protection network more firmly, reduce the cracked risk of first protection network and second protection network junction, and can also coil when accomodating at the protection network.

Description

Mine blasting collapse prevention device

Technical Field

The utility model relates to a mine blasting technical field especially relates to a mine blasting prevents device that collapses.

Background

Mine blasting need surround the protection through the protection network to the massif when the blasting, avoid the massif to take place to collapse the back rubble and roll off and cause casualties and incident, current mine blasting is with the protection network of preventing collapsing of earth stone when connecting each other, the dynamics that the massif collapsed and forms causes the impact to the junction of protection network easily and causes the junction fracture, and the protection network is when coiling the connection, the tip of protection network lacks fixing device, thereby make the protection network outwards scatter from the port department easily.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of mine blasting anti-collapse device has solved current mine blasting and has prevented the protection network that collapses with earth and stone when connecting each other, and the dynamics that the massif collapsed and formed causes the impact easily to the junction of protection network and causes the junction fracture, and the protection network when coiling the connection, and the tip of protection network lacks fixing device to make the protection network outwards disperse from the port department easily.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a device that collapses is prevented in mine blasting, includes connecting piece, first protection network and second protection network, the outer surface distribution fixedly connected with main ring body of connecting piece, the spring groove has been seted up to the one end inside of main ring body, the spacing spring of inside fixedly connected with in spring groove, the one end fixedly connected with inner ring body of spacing spring, the other end of main ring body set up with inner ring body's tip assorted recess.

Preferably, the internal thread of the groove is screwed with a threaded bolt, and one end of the threaded bolt simultaneously penetrates through the end surfaces of the main ring body and the inner ring body.

Preferably, one end of the inner ring body, which is sleeved with the spring groove, is fixedly connected with a bump, one end of the spring groove penetrates through the surface and is provided with a limiting bolt hole, a limiting bolt is sleeved inside the limiting bolt hole, and one end of the limiting bolt is located on the outer side of the bump.

Preferably, the inner surface of the limiting bolt hole is provided with an internal thread, and the outer surface of the limiting bolt is provided with an external thread matched with the internal thread.

Preferably, the outer surface of one end of the inner ring body is fixedly connected with a shifting shaft, and the first protective net and the second protective net penetrate through the surface and are provided with meshes in a distributed manner.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a connecting piece, the design of major loop body and interior ring body, be convenient for fasten first protection network and second protection network and connect, and because the distribution quantity of major loop body on the connecting piece has a plurality ofly, make the connection between first protection network and the second protection network more firm, reduce the cracked risk of first protection network and second protection network junction, and can also coil when accomodating at the protection network, it is fixed to carry out the block to the tip of protection network through connecting piece and major loop body, thereby avoid the protection network after coiling to outwards scatter, design through the screw bolt, be convenient for fasten being connected between interior ring body and the major loop body, through the design of spacing bolt and lug, be convenient for avoid interior ring body inwards shrink into the spring inslot.

Drawings

Fig. 1 is a schematic view of an elevational internal structure of a mine blasting collapse prevention device provided by the utility model;

fig. 2 is an enlarged schematic view of a part of the structure in fig. 1 of the mine explosion collapse prevention device provided by the utility model.

In the figure: the device comprises a connecting piece 1, a main ring body 2, a spring groove 3, a limiting spring 4, a first protective net 5, a shifting shaft 6, meshes 7, a second protective net 8, an inner ring body 9, a threaded bolt 10, a limiting bolt hole 11, a limiting bolt 12 and a lug 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a mine blasting anti-collapse device comprises a connecting piece 1, a first protective net 5 and a second protective net 8, wherein a main ring body 2 is fixedly connected to the outer surface of the connecting piece 1 in a distributed mode, a spring groove 3 is formed in one end of the main ring body 2, a limiting spring 4 is fixedly connected to the inner portion of the spring groove 3, an inner ring body 9 is fixedly connected to one end of the limiting spring 4, and a groove matched with the end portion of the inner ring body 9 is formed in the other end of the main ring body 2.

In this embodiment, the inner thread of the groove is screwed with a threaded bolt 10, and one end of the threaded bolt 10 penetrates through the end surfaces of the main ring body 2 and the inner ring body 9.

In this embodiment, a protrusion 13 is fixedly connected to one end of the inner ring 9 sleeved with the spring slot 3, a limiting bolt hole 11 is formed in one end of the spring slot 3 penetrating through the surface, a limiting bolt 12 is sleeved inside the limiting bolt hole 11, and one end of the limiting bolt 12 is located outside the protrusion 13.

In this embodiment, the inner surface of the limiting bolt hole 11 is provided with an internal thread, and the outer surface of the limiting bolt 12 is provided with an external thread matched with the internal thread.

In this embodiment, the outer surface of one end of the inner ring 9 is fixedly connected with the dial shaft 6, and the first protective net 5 and the second protective net 8 are both provided with meshes 7 through the surface distribution.

In this embodiment, when the first protection net 5 and the second protection net 8 are connected, the threaded bolt 10 is firstly rotated and loosened, then one end of the inner ring 9 is pulled out from the end groove of the main ring body 2 through the shifting shaft 6, then the main ring body 2 is clamped into the meshes 7 on the first protection net 5 and the second protection net 8 through the gap opened by the inner ring 9, so as to connect the first protection net 5 and the second protection net 8, then the inner ring 9 is released, so that the end of the inner ring 9 is clamped into the groove at the end of the main ring body 2 again under the elastic force of the limiting spring 4, then the threaded bolt 10 is screwed to fasten the connection between the inner ring 9 and the main ring body 2, in this process, the lug 13 connected to the other end of the inner ring 9 is blocked in the spring groove 3 and cannot be pulled out, and at the same time, the limiting bolt hole 11 is rotated, and the inner end of the limiting bolt hole 11 is rotated to the outer side of the lug, thereby block lug 13, avoid interior ring member 9 to contract in the spring groove 3, can carry out fastening connection to first protection network 5 and second protection network 8 through above-mentioned mode, and because the distribution quantity of major ring member 2 on connecting piece 1 has a plurality ofly, make the connection between first protection network 5 and the second protection network 8 more firm, reduce the cracked risk of first protection network 5 and second protection network 8 junction, and can also coil when accomodating at the protection network, carry out the block through connecting piece 1 and major ring member 2 to the tip of protection network and fix, thereby avoid the outside scattering of protection network after coiling.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a device that collapses is prevented in mine blasting, includes connecting piece (1), first protection network (5) and second protection network (8), its characterized in that, the outer surface distribution fixedly connected with major loop body (2) of connecting piece (1), spring groove (3) have been seted up to the one end inside of major loop body (2), the inside fixedly connected with spacing spring (4) of spring groove (3), the one end fixedly connected with inner ring body (9) of spacing spring (4), the tip assorted recess with inner ring body (9) is seted up to the other end of major loop body (2).

2. The mine blasting collapse prevention device according to claim 1, wherein the groove is internally screwed with a threaded bolt (10), and one end of the threaded bolt (10) penetrates through the end surfaces of the main ring body (2) and the inner ring body (9) simultaneously.

3. The mine blasting collapse prevention device according to claim 1, wherein a bump (13) is fixedly connected to one end of the inner ring (9) sleeved with the spring groove (3), a limiting bolt hole (11) is formed in one end of the spring groove (3) through the surface, a limiting bolt (12) is sleeved inside the limiting bolt hole (11), and one end of the limiting bolt (12) is located outside the bump (13).

4. The mine blasting collapse prevention device according to claim 3, wherein the inner surface of the limiting bolt hole (11) is provided with an internal thread, and the outer surface of the limiting bolt (12) is provided with an external thread matched with the internal thread.

5. The mine blasting collapse prevention device according to claim 1, wherein a poking shaft (6) is fixedly connected to the outer surface of one end of the inner ring body (9), and meshes (7) are distributed on the first protective net (5) and the second protective net (8) in a penetrating manner.