Anti-breaking shaped charge tube

Abstract

The application discloses a breakage-proof shaped charge tube, which comprises a cylindrical tube body, a hollow cavity is arranged in the middle part of the cylindrical tube body, explosive is inserted into the hollow cavity, one end of the cylindrical tube body is a small-aperture tube body, the other end of the cylindrical tube body is a large-aperture tube body, the outer diameter of the small-aperture tube body is equal to the inner diameter of the large-aperture tube body, a groove is arranged on the side surface of the cylindrical tube body, a plurality of round head protrusions are arranged on the groove, the round head protrusions are uniformly distributed on the small-aperture tube body, and the height of the round head protrusions is greater than the depth of the groove. The single shaped charge tube is integrally designed, the hollow cavity of the shaped charge tube is directly filled with explosive when the explosive is installed, the shaped charge tube is not worried about cracking, and the round head protrusions in the groove are used for connecting adjacent shaped charge tubes to realize interference fit and prevent the adjacent shaped charge tubes from being disconnected.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of blasting construction, in particular to a fracture-proof shaped charge tube. BACKGROUND

[0002] The shaped charge tube is mainly applied to the field of blasting engineering, such as mining, road construction, water conservancy and hydropower engineering, building demolition and the like, and needs to be used in the scenes, in the use process, the explosive charge is placed into the shaped charge tube, then a hole is punched at a position needing blasting, the shaped charge tube containing the explosive charge is inserted into the hole, and the explosive charge in the shaped charge tube is detonated at a safe position.

[0003] The application number CN202223100906.X discloses a circular shaped charge tube which is composed of two mutually buckled semicircular shells and a connecting piece, the semicircular shells are provided with a strip-shaped groove and a shaped charge hole on the outer side, the explosive charge is placed between the semicircular shells, and then the semicircular shells are buckled to assemble the shaped charge tube, so that the shaped charge tube is convenient to use, but if a complex use environment is encountered, the split type shaped charge tube is prone to fracture, for example, when the shaped charge tube is inserted, the connecting piece between the shaped charge tubes is prone to be disconnected, so that the restraint of the shaped charge tube on the explosive charge is invalid, and the restraint of the shaped charge tube on the explosion is affected, therefore, a fracture-proof shaped charge tube is needed. CONTENT OF THE UTILITY MODEL

[0004] The application discloses a fracture-proof shaped charge tube.

[0005] The application aims to provide a fracture-proof shaped charge tube, the single shaped charge tube is integrally designed, the hollow cavity of the shaped charge tube is directly inserted when the explosive charge is installed, the fracture of the shaped charge tube is not worried, the interference fit of the adjacent shaped charge tubes is realized by the round head protrusions in the grooves, the disconnection between the adjacent shaped charge tubes is prevented, the firmness of the shaped charge tube in the installation process is ensured, and the shaped charge tube is suitable for deep hole explosion occasions.

[0006] In order to achieve the above purpose, the application adopts the following technical scheme:

[0007] The fracture-proof shaped charge tube comprises a cylindrical pipe body, a hollow cavity is arranged in the middle of the cylindrical pipe body, an explosive charge is inserted into the hollow cavity, one end of the cylindrical pipe body is a small-diameter pipe body, the other end of the cylindrical pipe body is a large-diameter pipe body, the outer diameter of the small-diameter pipe body is equal to the inner diameter of the large-diameter pipe body, a groove is arranged on the side surface of the cylindrical pipe body, a plurality of round head protrusions are arranged on the groove, the round head protrusions are uniformly distributed on the small-diameter pipe body, and the height of the round head protrusion is greater than the depth of the groove.

[0008] As a further optimization, the groove has two, and the two grooves are axially symmetrical about the center line of the cylindrical pipe body.

[0009] As further preferred, the length of the small-diameter tube body is greater than the length of the large-diameter tube body.

[0010] As further preferred, the cross section of the groove is rectangular, and the width of the rectangular groove is equal to the diameter of the round head protrusion, facilitating fixation of the round head protrusion in the groove.

[0011] As further preferred, the round head protrusion is conical away from one end of the cylindrical tube body.

[0012] Compared with the prior art, the application has the following beneficial effects:

[0013] 1. The application solves the problem of easy breakage of the shaped charge tube in deep hole blasting by integrally designing the single shaped charge tube, directly inserting the shaped charge tube into the hollow cavity when installing the explosive, not worrying about cracking of the shaped charge tube, and connecting the adjacent shaped charge tubes by the round head protrusion in the groove to realize interference fit and prevent disconnection between the adjacent shaped charge tubes. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a front view of the application;

[0015] Figure 2 is a perspective view of two connected shaped charge tubes of the application;

[0016] Figure 3 is a cross-sectional view of the application;

[0017] Wherein: 1, cylindrical tube body, 2, small-diameter tube body, 3, large-diameter tube body, 4, groove, 5, round head protrusion. DETAILED DESCRIPTION

[0018] The application will be further described below in conjunction with the drawings and examples. Example 1

[0019] A breakage-proof shaped charge tube, like Figures 1-3As shown, it comprises: a cylindrical tube body 1, the middle part of the cylindrical tube body 1 is a hollow cavity, the explosive is inserted into the hollow cavity, one end of the cylindrical tube body 1 is a small aperture pipe body 2, the other end of the cylindrical tube body 1 is a large aperture pipe body 3, the small aperture pipe is expanded into a large aperture pipe by a reamer, the outer diameter of the small aperture pipe body 2 is equal to the inner diameter of the large aperture pipe body 3, the small aperture pipe body 2 can be inserted into the adjacent large aperture pipe body 3, so that the multiple cylindrical tube bodies 1 can be connected conveniently, the length of the overall shaped charge tube is prolonged, the side surface of the cylindrical tube body 1 is provided with a groove 4, a plurality of round head protrusions 5 are arranged on the groove 4, the round head protrusions 5 are uniformly distributed on the small aperture pipe body 2, the height of the round head protrusion 5 is greater than the depth of the groove 4, the round head protrusion 5 can be shot out when the explosive explodes, the round head protrusion 5 can be shot out like a bullet, which facilitates the expansion of the blasting area in blasting, so that the cylindrical tube body 1 is an integral structure and is not easy to break, and when the adjacent cylindrical tube bodies 1 are connected, the round head protrusion 5 can make the connection between the adjacent cylindrical tube bodies 1 be an interference fit, the connection is more compact, and the adjacent cylindrical tube bodies 1 are prevented from breaking.

[0020] As shown in Figure 3 The groove 4 has two, the two grooves 4 are axisymmetric with the center line of the cylindrical tube body 1, the groove 4 position of the cylindrical tube body 1 is thin-walled, which is the position of the explosion energy release, and can guide the direction of explosion.

[0021] As shown in Figure 2 The length of the small aperture pipe body 2 is greater than the length of the large aperture pipe body 3, which facilitates the mutual connection of the adjacent cylindrical tube bodies 1.

[0022] As shown in Figure 3 The cross section of the groove 4 is rectangular, the width of the rectangular groove 4 is equal to the diameter of the round head protrusion 5, which facilitates the fixation of the round head protrusion 5 in the groove 4.

[0023] The end of the round head protrusion 5 away from the cylindrical tube body 1 is conical, the conical protrusion can further damage the rock and other solids, and has greater damage strength.

[0024] The cylindrical tube body 1 is made of polyethylene material, which is cheap and has moderate hardness, and is convenient for grooving.

[0025] The length of a single cylindrical tube body 1 ranges from 1 meter to 3 meters, and the diameter of a single cylindrical tube body 1 ranges from 30 millimeters to 60 millimeters, which can be produced within this range according to actual needs.

[0026] In the technical scheme of the application, the explosive is first inserted into the cylindrical pipe body 1, and the cylindrical pipe body 1 with the required length is connected according to the depth of the blast hole. Since the outer diameter of the small-diameter pipe body 2 is equal to the inner diameter of the large-diameter pipe body 3, it is relatively easy to insert. At the same time, the cylindrical pipe body 1 is made of polyethylene material and has a certain elasticity. Thus, the round head protrusion 5 is inserted into the large-diameter pipe body 3 along with the small-diameter pipe body 2. Since the protruding groove 4 is outside, the small-diameter pipe body 2 and the large-diameter pipe body 3 are interference fit, and the installation is more compact. It prevents the adjacent cylindrical pipe body 1 from breaking. In the use process of the technical scheme of the application, cracking is not easy to occur. When inserted into the blast cavity, the adjacent connecting pipe will not be broken. Therefore, the technical scheme of the application is more suitable for deep hole blasting environment.

[0027] Although the specific embodiments of the application have been described above with reference to the drawings, the description is not a limitation on the scope of protection of the application. Those skilled in the art should understand that various modifications or variations of the technical scheme of the application can be made without creative labor and still fall within the scope of protection of the application.

Claims

1. A fracture-resistant condensing tube, characterized in that it comprises: A cylindrical tube has a hollow cavity in the middle, into which explosives are inserted. One end of the cylindrical tube has a small-diameter opening, and the other end has a large-diameter opening. The outer diameter of the small-diameter opening is equal to the inner diameter of the large-diameter opening. The side of the cylindrical tube has a groove with multiple rounded protrusions evenly distributed on the small-diameter opening. The height of the rounded protrusions is greater than the depth of the groove.

2. The fracture-resistant focusing tube as described in claim 1, characterized in that, There are two grooves, which are symmetrical about the centerline of the cylindrical tube.

3. The fracture-resistant energy-concentrating tube as described in claim 1, characterized in that, The length of the small-diameter pipe is greater than the length of the large-diameter pipe.

4. The fracture-resistant energy-concentrating tube as described in claim 1, characterized in that, The groove has a rectangular cross-section, and the width of the rectangular groove is equal to the diameter of the round-headed protrusion, which facilitates the fixing of the round-headed protrusion in the groove.

5. A fracture-resistant focusing tube as described in claim 1, characterized in that, The end of the rounded protrusion away from the cylindrical tube is conical.

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