Quick connecting device for upward hole detonating cord

Abstract

The utility model relates to an upward hole detonating cord quick connecting device which comprises a containing bin, a supporting rod is placed in the containing bin, a moving rod is placed on the bottom face of the supporting rod, a limiting ring is fixedly connected to the bottom face of the moving rod, a connecting hole is formed in the bottom face of the supporting rod, and the moving rod extends into the connecting hole. A plurality of first fixing frames are fixedly connected to the peripheral wall of the supporting rod, a plurality of second fixing frames are placed on the right side face of the moving rod, and rubber pads are fixedly connected to the front inner walls and the back inner walls of the first fixing frames and the second fixing frames. According to the quick connecting device for the upward hole detonating cord, under the action of the supporting rod and the moving rod, the detonating cord is limited, under the action of the rubber pad, the moving rod and the detonating cord are pushed out together to be left at the bottom of a hole through the pressure of explosive when the explosive spraying process begins, meanwhile, the situation that the detonating cord rubs against the hole wall in the pipe feeding process, and consequently the structure of the detonating cord is damaged can be prevented, and the service life of the detonating cord is prolonged. And the charging efficiency can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detonating cords, in particular to an upward hole detonating cord quick connection device. Background Art

[0002] Detonating cord is a linear explosive device used to detonate several explosive bags or blocks at the same time. It is made of a core wire, core powder and several layers of cotton thread and paper wrapping. Its surface is red to distinguish it from the fuse. It has an outer diameter of 5.2 to 6.0 mm. Usually each roll is 50 meters. It is detonated with a detonator. The detonation speed is not less than 5,600 meters / second. Detonating cord is sensitive and can easily explode when subjected to friction, impact, bullet penetration and burning.

[0003] When the charging tube is sent upward, the detonating cord needs to be fixed at the tube mouth in advance. When the charging process starts, it will automatically fall off from the tube mouth and remain at the bottom of the hole to achieve the blasting effect of reverse detonation. However, it is not convenient to fix the detonating cord at the tube mouth of the existing charging tube, and when the charging starts, the detonating cord will automatically fall off. Therefore, a quick connection device for upward hole detonating cord is proposed to solve the above problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an upward hole detonating cord quick connection device, which has the advantage of convenient connection and solves the problem that the existing charging tube is inconvenient to fix the detonating cord at the tube mouth and the detonating cord automatically falls off when charging starts.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an upward hole detonating cord quick connection device, comprising a placement bin, a support rod is placed inside the placement bin, a moving rod is placed on the bottom surface of the support rod, and a limiting ring is fixedly connected to the bottom surface of the moving rod.

[0006] A connecting hole is provided on the bottom surface of the support rod, and the movable rod extends to the inside of the connecting hole. A plurality of first fixing frames are fixedly connected to the outer peripheral wall of the support rod, and a plurality of second fixing frames are placed on the right side of the movable rod. The front inner walls and the back inner walls of the plurality of first fixing frames and the plurality of second fixing frames are fixedly connected with rubber pads.

[0007] The moving rod is provided with an adjusting component for adjusting the distance between two adjacent second fixing frames.

[0008] The placement bin is provided with a limiting assembly for limiting the support rod.

[0009] Furthermore, the placement bin is shaped like a cylinder with a hollow interior and a missing top surface, the movable rod and the connecting hole are clearance-matched, and the first fixing frame and the second fixing frame are both U-shaped frames.

[0010] Furthermore, the adjustment component includes a plurality of mounting rings, each of which is mounted on the outer circumferential wall of the movable rod, each of which is fixedly connected to a plurality of second fixing frames, respectively; a first rubber ring is fixedly connected to the interior of the connecting hole, the movable rod passes through the first rubber ring, and a second rubber ring is fixedly connected to the inner circumferential walls of the plurality of mounting rings, the movable rod passes through the second rubber ring.

[0011] Furthermore, the first rubber ring is tightly fitted to the moving rod, and the second rubber ring is tightly fitted to the moving rod.

[0012] Furthermore, the limiting assembly includes a connecting ring, which is placed on the top surface of the placement bin, and the bottom surface of the connecting ring is fixedly connected to the fixing ring. A connecting groove is provided on the bottom surface of the fixing ring, and the placement bin extends to the interior of the connecting groove. Two third rubber rings are fixedly connected to the interior of the connecting groove, and the support rod and the fixing ring are fixedly connected.

[0013] Furthermore, the connecting groove is an annular groove, and the two third rubber rings are respectively tightly fitted with the inner peripheral wall and the outer peripheral wall of the placement bin.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The upward hole detonating cord quick connection device restricts the detonating cord under the action of the support rod and the moving rod, and under the action of the rubber pad, at the beginning of the spraying process, the moving rod and the detonating cord are pushed out together by the pressure of the medicine and retained at the bottom of the hole. At the same time, it can also prevent the detonating cord from rubbing against the hole wall during the pipe delivery process and destroying its structure, which can greatly improve the charging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 for Figure 1 A is a magnified schematic diagram of the structure;

[0018] Figure 3 It is a top view schematic diagram of the first fixing frame in the structure of the utility model.

[0019] In the figure: 1 placement bin, 2 limiting ring, 3 fixing ring, 4 third rubber ring, 5 connecting groove, 6 connecting ring, 7 support rod, 8 first fixing frame, 9 rubber pad, 10 mounting ring, 11 moving rod, 12 second fixing frame, 13 connecting hole, 14 first rubber ring, 15 second rubber ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0021] See also Figure 1-3 The upward hole detonating cord quick connection device in this embodiment includes a placement compartment 1, a support rod 7 is placed inside the placement compartment 1, a moving rod 11 is placed on the bottom surface of the support rod 7, and a limiting ring 2 is fixedly connected to the bottom surface of the moving rod 11.

[0022] A connecting hole 13 is provided on the bottom surface of the support rod 7, and the movable rod 11 extends into the inside of the connecting hole 13. A plurality of first fixing frames 8 are fixedly connected to the outer peripheral wall of the support rod 7, and a plurality of second fixing frames 12 are placed on the right side of the movable rod 11. The front inner walls and the back inner walls of the plurality of first fixing frames 8 and the plurality of second fixing frames 12 are fixedly connected with rubber pads 9.

[0023] The storage bin 1 is shaped like a cylinder with a hollow interior and a missing top surface, the moving rod 11 and the connecting hole 13 are clearance-fitted, and the first fixing frame 8 and the second fixing frame 12 are both U-shaped frames.

[0024] Specifically, the detonating cord is pushed so that it enters the first fixing frame 8 and the second fixing frame 12, and the detonating cord is fixed by the action of the rubber pad 9. The gunpowder enters the interior of the storage bin 1, driving the limit ring 2 to move, and the clearance between the moving rod 11 and the connecting hole 13 allows the detonating cord and the limit ring 2 to move with the gunpowder.

[0025] In this embodiment, an adjustment component is provided on the moving rod 11, and the adjustment component includes a plurality of mounting rings 10, and the plurality of mounting rings 10 are all mounted on the outer peripheral wall of the moving rod 11, and the plurality of mounting rings 10 are respectively fixedly connected to the plurality of second fixing frames 12, and a first rubber ring 14 is fixedly connected to the inside of the connecting hole 13, and the moving rod 11 passes through the first rubber ring 14, and the inner peripheral walls of the plurality of mounting rings 10 are fixedly connected to the second rubber ring 15, and the moving rod 11 passes through the second rubber ring 15.

[0026] The first rubber ring 14 and the moving rod 11 are tightly fitted, and the second rubber ring 15 and the moving rod 11 are tightly fitted.

[0027] Specifically, the second fixing frame 12 is pulled to drive the mounting ring 10 to move, and the position of the mounting ring 10 is adjusted. The second fixing frame 12 is fixed by the fit between the second rubber ring 15 and the moving rod 11, and the moving rod 11 is supported by the fit between the first rubber ring 14 and the moving rod 11.

[0028] In this embodiment, a limiting assembly is provided on the placement bin 1, and the limiting assembly includes a connecting ring 6, which is placed on the top surface of the placement bin 1, and the bottom surface of the connecting ring 6 is fixedly connected to the fixing ring 3. A connecting groove 5 is provided on the bottom surface of the fixing ring 3, and the placement bin 1 extends to the inside of the connecting groove 5. Two third rubber rings 4 are fixedly connected to the inside of the connecting groove 5, and the support rod 7 is fixedly connected to the fixing ring 3.

[0029] The connecting groove 5 is an annular groove, and the two third rubber rings 4 are respectively tightly fitted with the inner peripheral wall and the outer peripheral wall of the placement bin 1 .

[0030] Specifically, the connecting ring 6 is pushed to fit the connecting ring 6 and the placement bin 1, and the placement bin 1 enters the interior of the connecting groove 5. The connecting ring 6 and the fixing ring 3 are fixed by the fit between the third rubber ring 4 and the placement bin 1, and then the support rod 7 is fixed.

[0031] The working principle of the above embodiment is:

[0032] The second fixing frame 12 is pulled so that the second fixing frame 12 drives the mounting ring 10 to move, and the position of the mounting ring 10 is adjusted. The second fixing frame 12 is fixed by the fit between the second rubber ring 15 and the moving rod 11, and the detonating cord is pushed so that the detonating cord enters the first fixing frame 8 and the second fixing frame 12. The detonating cord is fixed by the action of the rubber pad 9, and the connecting ring 6 is pushed so that the connecting ring 6 and the placing bin 1 are fitted, and the placing bin 1 enters the inside of the connecting groove 5. The connecting ring 6 and the fixing ring 3 are fixed by the fit between the third rubber ring 4 and the placing bin 1, and then the support rod 7 is fixed. The gunpowder enters the inside of the placing bin 1, and drives the limit ring 2 to move. The clearance between the moving rod 11 and the connecting hole 13 makes the detonating cord and the limit ring 2 move with the gunpowder, and the moving rod 11 is supported by the fit between the first rubber ring 14 and the moving rod 11.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An upward hole detonating cord quick connection device, comprising a storage compartment (1), characterized in that: A support rod (7) is placed inside the placement bin (1), a moving rod (11) is placed on the bottom surface of the support rod (7), and the bottom surface of the moving rod (11) is fixedly connected to a limiting ring (2); A connecting hole (13) is provided on the bottom surface of the support rod (7), the moving rod (11) extends to the inside of the connecting hole (13), a plurality of first fixing frames (8) are fixedly connected to the outer peripheral wall of the support rod (7), a plurality of second fixing frames (12) are placed on the right side of the moving rod (11), and the front inner walls and the back inner walls of the plurality of first fixing frames (8) and the plurality of second fixing frames (12) are fixedly connected to rubber pads (9); The moving rod (11) is provided with an adjustment component, and the placement bin (1) is provided with a limit component.

2. The upward hole detonating cord quick connection device according to claim 1, characterized in that: The placement bin (1) is in the shape of a cylinder with a hollow interior and a missing top surface; the moving rod (11) and the connecting hole (13) are clearance-matched; and the first fixing frame (8) and the second fixing frame (12) are both U-shaped frames.

3. The upward hole detonating cord quick connection device according to claim 1, characterized in that: The adjustment assembly comprises a plurality of mounting rings (10), each of which is mounted on an outer peripheral wall of a moving rod (11), each of which is fixedly connected to a plurality of second fixing frames (12), a first rubber ring (14) is fixedly connected to the interior of the connecting hole (13), the moving rod (11) passes through the first rubber ring (14), and a second rubber ring (15) is fixedly connected to the inner peripheral walls of the plurality of mounting rings (10), the moving rod (11) passes through the second rubber ring (15).

4. The upward hole detonating cord quick connection device according to claim 3, characterized in that: The first rubber ring (14) and the moving rod (11) are tightly fitted, and the second rubber ring (15) and the moving rod (11) are tightly fitted.

5. The upward hole detonating cord quick connection device according to claim 3, characterized in that: The limiting assembly comprises a connecting ring (6), the connecting ring (6) is placed on the top surface of the placement bin (1), the bottom surface of the connecting ring (6) is fixedly connected to the fixing ring (3), the bottom surface of the fixing ring (3) is provided with a connecting groove (5), the placement bin (1) extends to the inside of the connecting groove (5), the inside of the connecting groove (5) is fixedly connected with two third rubber rings (4), and the support rod (7) and the fixing ring (3) are fixedly connected.

6. The upward hole detonating cord quick connection device according to claim 5, characterized in that: The connecting groove (5) is an annular groove, and the two third rubber rings (4) are respectively tightly fitted with the inner peripheral wall and the outer peripheral wall of the placement bin (1).

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