Upward hole initiating explosive and explosive anti-falling device

Abstract

The utility model relates to an upward hole initiating explosive and explosive falling prevention device, and belongs to the technical field of mine blasting in the metallurgical industry. According to the technical scheme, the outer wall of an internal thread ring (2) is connected with the inner wall of a net fence ring (1) in a sliding mode, one end of the internal thread ring (2) is connected with an explosive containing bag (8) internally containing detonating explosives, the other end of the internal thread ring (2) is connected with an external thread ring (3) in a threaded mode, and a breather pipe (5) is connected to the external thread ring (3). A dustproof connecting piece (4) and a hollowed-out fixing piece (41) which are matched with each other are arranged at the end of the external thread ring (3), an empty groove is formed in the end, close to the dustproof connecting piece (4), of the hollowed-out fixing piece (41), a plurality of communicating holes (42) communicated with the empty groove are formed in the dustproof connecting piece (4), and a movable round piece (44) is movably connected to the inner wall of the hollowed-out fixing piece (41) in an inserted mode. The device has the beneficial effects that the position of the detonator in the blast hole at the top of the hole can be more accurately controlled, and the explosive is prevented from falling off.

Description

Technical Field

[0001] The utility model relates to an upward hole detonator and an anti-falling device for explosives, belonging to the technical field of mine blasting in the metallurgical industry. Background Art

[0002] In the mining process, blasting is a commonly used method used to crush rocks and ores for subsequent excavation and transportation. Mine blasting usually requires drilling a blast hole first, then placing the detonator inside the blast hole and detonating it. The explosives need to be properly placed in the blast hole drilled on the top of the mine.

[0003] Traditional methods make it difficult to accurately control the position of the detonator in a deep hole, resulting in unsatisfactory explosion effects. Moreover, if the detonator is not placed accurately, the expected fragmentation effect cannot be achieved, resulting in a waste of resources and increasing the difficulty of subsequent work. To this end, we propose an upward hole detonator and explosive anti-dropping device to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an upward hole detonator and explosive anti-falling device, which can more accurately control the position of the detonator in the top blast hole, prevent the explosive from falling, and solve the problems existing in the background technology.

[0005] The technical solution of the utility model is:

[0006] A device for preventing explosives from falling out and detonating upwardly directed explosives comprises a mesh fence ring, an internally threaded ring, an externally threaded ring, a dustproof connecting piece, a vent pipe, an extension rod and an explosives placement bag. The outer wall of the internally threaded ring is slidably connected to the inner wall of the mesh fence ring, one end of the internally threaded ring is connected to the explosives placement bag in which the detonating explosives are placed, and the other end of the internally threaded ring is threadedly connected to the externally threaded ring. The vent pipe is connected to the externally threaded ring, and the end of the externally threaded ring is provided with a dustproof connecting piece and a hollow fixing piece that cooperate with each other. The hollow fixing piece and the dustproof connecting piece are provided with hollow grooves at their proximal ends. The hollow fixing piece is provided with a plurality of connecting holes connected to the hollow grooves. A movable disc is movably inserted into the inner wall of the hollow fixing piece, and the movable disc is fixedly connected to the extension rod.

[0007] The movable disc is connected with four movement limiting pieces in the circumferential direction.

[0008] The four movement-limiting plates on the circumferential direction of the movable disc all match the shapes of the plurality of communicating holes, and the thicknesses of the four movement-limiting plates match the thickness of the empty slots.

[0009] Six movement limiting blocks are arranged in the hollow groove at the adjacent ends of the hollow fixing piece and the dustproof connecting piece, and the six movement limiting blocks divide the hollow groove into six cavities.

[0010] The inner diameter of the fence ring and the outer diameter of the internal thread ring match the size of the opening of the explosive placement bag in which the detonating explosive is placed.

[0011] The beneficial effects of the utility model are:

[0012] (1) The hollow fixing plate, dustproof connecting plate and movable disc can be used to securely fix the detonator at a predetermined depth, and the explosive bag can be inflated through the vent pipe. The bag is then sealed by tightening the internal and external threaded rings to prevent air leakage, thereby enabling more precise control of the position of the detonator in the top blast hole and preventing the explosive from falling.

[0013] (2) The structure of the explosive placement bag can adapt to blastholes of different shapes and sizes, increasing its applicability in various mining conditions and reducing manual operation steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the main view of the utility model;

[0015] Figure 2 This is a cross-sectional view of the fence ring of the utility model;

[0016] Figure 3 This is an exploded schematic diagram of the internal thread ring and the external thread ring in the present utility model;

[0017] Figure 4 This is an exploded schematic diagram of the hollow fixing piece and the dustproof connecting piece in the utility model;

[0018] In the figure: 1, mesh ring; 2, internal thread ring; 3, external thread ring; 4, dustproof connecting piece; 5, ventilation pipe; 6, extension rod; 8, explosive placement bag; 41, hollow fixing piece; 42, connecting hole; 43, movement restriction block; 44, moving disc; 45, movement restriction piece. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and examples.

[0020] Refer to the attached Figure 1-4, a device for preventing explosives from falling out of an upward hole and explosives, comprising a mesh fence ring 1, an internal threaded ring 2, an external threaded ring 3, a dustproof connecting piece 4, a vent pipe 5, an extension rod 6 and an explosive placement bag 7. The outer wall of the internal threaded ring 2 is slidably connected to the inner wall of the mesh fence ring 1, one end of the internal threaded ring 2 is connected to the explosive placement bag 8 in which the explosive is placed, and the other end of the internal threaded ring 2 is threadedly connected to the external threaded ring 3. The vent pipe 5 is connected to the external threaded ring 3, and the end of the external threaded ring 3 is provided with a dustproof connecting piece 4 and a hollow fixing piece 41 that cooperate with each other. The hollow fixing piece 41 and the dustproof connecting piece 4 are opened at the ends close to each other with hollow grooves, and the hollow fixing piece 41 is provided with a plurality of connecting holes 42 connected with the hollow grooves. The inner wall of the hollow fixing piece 41 is movably plugged with a movable disc 44, and the movable disc 44 is fixedly connected with an extension rod 6.

[0021] In this embodiment, refer to the attached Figure 1-4 The inner wall sliding sleeve of the fence circle 1 is provided with an internal thread ring 2, the cross section of the internal thread ring 2 is trapezoidal, the end pipe of the internal thread ring 2 is connected to the explosives placement bag 8, and the explosives are placed inside the explosives placement bag 8;

[0022] The threaded inner wall of the internal threaded ring 2 is threadedly connected to the external threaded ring 3 , and the internal threaded ring 2 and the external threaded ring 3 are connected to a vent pipe 5 .

[0023] The side end of the external threaded ring 3 is fixedly connected to a dustproof connecting piece 4, and the side end of the dustproof connecting piece 4 is fixedly connected to a hollow fixing piece 41. The hollow fixing piece 41 and the dustproof connecting piece 4 are provided with hollow grooves at their adjacent ends. The side end of the hollow fixing piece 41 is provided with multiple connecting holes 42, and the multiple connecting holes 42 are all connected to the hollow grooves.

[0024] Six movement limiting blocks 43 are fixedly connected to the inner wall of the empty slot, and the six movement limiting blocks 43 divide the empty slot into six cavities.

[0025] A movable disc 44 is movably inserted into the inner wall of the hollow fixed piece 41 , and four movement limiting pieces 45 are fixedly connected to the circumferential surface of the movable disc 44 .

[0026] The four movement-limiting pieces 45 all match the shapes of the plurality of communicating holes 42 , and the thickness of the four movement-limiting pieces 45 is equivalent to the thickness of the empty slots.

[0027] The side end of the movable disc 44 is fixedly connected to the extension rod 6 .

[0028] The working principle of this utility model is as follows:

[0029] First, place the detonator inside the explosive bag 8, then clamp the internal thread ring 2 with the fence ring 1, connect the small mouth of the internal thread ring 2 with the explosive bag 8, then pass the vent pipe 5 through the reserved hole on the surface of the internal thread ring 2 and connect it with the reserved hole of the external thread ring 3, then screw the external thread ring 3 into a part of the internal thread ring 2, and then seal the external thread ring 3 through the dustproof connecting piece 4, then use the extension rod 6 to move the movable disc 44 through multiple communicating holes 42 to the empty groove between the hollow fixing piece 41 and the dustproof connecting piece 4, and rotate the extension rod 6 to offset the movement limiting piece 45 with the movement limiting block 43, and then place the explosive bag 8. After it is placed in the blast hole and reaches the appropriate position, the explosives placement bag 8 is inflated through the ventilation pipe 5, so that the volume of the explosives placement bag 8 becomes larger and presses against the blast hole. At the same time, after the explosives placement bag 8 becomes larger, it presses against the fence ring 1, so that the fence ring 1 and the internal thread ring 2 are stabilized. At this time, the detonator can be placed at a predetermined depth for fixation, and then the extension rod 6 is rotated to tighten the external thread ring 3 and the internal thread ring 2. At this time, the ventilation pipe 5 is folded under the action of the internal thread ring 2 and the external thread ring 3, so that the air inside the explosives placement bag 8 will not leak out. At this time, the extension rod 6 is rotated in the opposite direction to remove the movable disc 44 from the empty slot. Finally, the detonator can be safely detonated for operation.

Claims

1. A device for preventing upward-facing explosives and detonators from falling off, characterized by: The utility model comprises a fence ring (1), an inner thread ring (2), an outer thread ring (3), a dustproof connecting piece (4), a vent pipe (5), an extension rod (6) and an explosive placement bag (8), wherein the outer wall of the inner thread ring (2) is slidably connected to the inner wall of the fence ring (1), one end of the inner thread ring (2) is connected to the explosive placement bag (8) in which detonated explosives are placed, and the other end of the inner thread ring (2) is threadedly connected to the outer thread ring (3), the vent pipe (5) is connected to the outer thread ring (3), the end of the outer thread ring (3) is provided with a dustproof connecting piece (4) and a hollow fixing piece (41) that cooperate with each other, the hollow fixing piece (41) and the dustproof connecting piece (4) are hollowed out at their adjacent ends, the hollow fixing piece (41) is provided with a plurality of communicating holes (42) that are connected to the hollow groove, the inner wall of the hollow fixing piece (41) is movably plugged with a movable disc (44), and the movable disc (44) is fixedly connected with the extension rod (6).

2. The upward hole detonator and explosive anti-dropping device according to claim 1, characterized in that: The movable disc (44) is connected to four limiting movable discs (45) in the circumferential direction.

3. The upward hole detonator and explosive anti-dropping device according to claim 2, characterized in that: The four movement-limiting pieces (45) in the circumferential direction of the circular piece (44) all match the shapes of the multiple communicating holes (42), and the thickness of the four movement-limiting pieces (45) matches the thickness of the empty slot.

4. The upward hole detonator and explosive anti-dropping device according to claim 1, characterized in that: Six movement limiting blocks (43) are provided in the hollow groove at the adjacent ends of the hollow fixing piece (41) and the dustproof connecting piece (4), and the six movement limiting blocks (43) divide the hollow groove into six cavities.

5. The upward hole detonator and explosive anti-dropping device according to claim 1, characterized in that: The inner diameter of the fence ring (1) and the outer diameter of the internal thread ring (2) match the size of the opening of the explosive placement bag (8) in which the detonating explosive is placed.

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