Combustion tube capable of being spliced

Abstract

The splicing combustion tube comprises a tube body, a plug and a splicing head, the tube body is of a hollow tubular structure, the plug is connected to the bottom of the tube body in an inserted mode, the splicing head is connected to the top of the tube body in an inserted mode, the splicing head comprises a first connector and a second connector, the first connector is arranged below the second connector, and the second connector is arranged below the first connector. The first connector and the second connector are both of a hollow structure penetrating through the upper end and the lower end of the first connector and the second connector and are both communicated with the pipe bodies, and the multiple pipe bodies of the same structure are sequentially connected in an inserted mode through the splicing heads to be communicated. According to the splicable combustion tube, the length of the combustion tube can be conveniently adjusted according to the actual length of a tunnel blast hole through the splicing head, use is more convenient, the flexibility is high, in addition, energy can be transmitted for combustion through the conical part, when fuel in one tube body is ignited, flames can be transmitted through the conical part of the splicing head, and the combustion efficiency is improved. Ignition of fuel in the other pipe body is accelerated, and the overall rock breaking effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting, in particular to a splicable combustion tube. Background Art

[0002] Blasting is often required in municipal transportation projects such as mining and stone mining, foundation pit excavation, tunnel and underground space construction, safe blasting and removal of stubborn rocks / boulders, and clearing of pipeline blockages. The blasting fracturing method has the characteristics of high efficiency and low cost. In order to improve the safety of operations, reduce strong impact disturbances, and achieve a more ideal rock breaking effect, a new rock crushing technology that uses high-energy gas expansion to do work to crack the rock mass has emerged. It quickly releases high-pressure gas to break the rock, overcoming the previous characteristics of explosive blasting and mining, which is highly destructive and dangerous. At present, the use of thermal expansion agents as fuel for operations all uses a simple integrated pipeline structure to load and use the fuel, which cannot be well applied to blastholes of different depths. Utility Model Content

[0003] The utility model aims to provide a splicable combustion tube to solve the technical problems in the background technology.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0005] A splicable combustion tube comprises a tube body, a plug and a splicing joint, wherein the tube body is a hollow tubular structure, the plug is plugged into the bottom of the tube body, the splicing joint is plugged into the top of the tube body, the splicing joint comprises a first joint and a second joint, the first joint is below the second joint, the first joint and the second joint are both hollow structures that penetrate through the upper and lower ends thereof and are both communicated with the tube body, and a plurality of tube bodies having the same structure are sequentially plugged in and connected through the splicing joint.

[0006] A raised positioning ring is provided at the connection between the first joint and the second joint, and the first joint includes a first mounting portion and a first material guiding portion, the first mounting portion is a hollow cylindrical structure, the outer diameter of the first mounting portion matches the inner diameter of the tube body, the first material guiding portion is an inverted conical structure, the first mounting portion and the first material guiding portion are coaxially arranged, and the first material guiding portion is provided with a first cross-shaped slot hole at its axial center position, and the first slot hole is communicated with the tube body.

[0007] The second joint is a hollow cylindrical structure, the outer diameter of the second joint is the same as the outer diameter of the first mounting portion, and a plurality of second slot holes with an opening structure are provided on the side wall of the second joint along the vertical direction.

[0008] The plug includes a base plate and a positioning block, the base plate is fixed above the positioning block, the base plate and the positioning block are both cylindrical structures, the positioning block is inserted into the tube body, the outer diameter of the positioning block matches the inner diameter of the tube body, the outer diameter of the base plate is larger than the outer diameter of the positioning block, and the positioning block is provided with a concave third slot hole, and the third slot hole is communicated with the tube body.

[0009] The pipe body is made of PVC material, and the plug and the splicing joint are both made of PE material.

[0010] Compared with the prior art, the present application discloses a splicable combustion tube, which utilizes a splicing joint to adjust the length of the combustion tube according to the actual length of the tunnel blasthole, and is more convenient to use and highly flexible. In addition, the conical portion can be used to transfer energy for combustion. When the fuel in one tube body is ignited, the conical portion of the splicing joint can transfer the flame to accelerate the ignition of the fuel in the other tube body, thereby improving the overall rock breaking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 : A three-dimensional diagram of the present application;

[0012] Figure 2 : A schematic diagram of the longitudinal half-section structure of the present application;

[0013] Figure 3 : Stereoscopic view of the splicing joint;

[0014] Figure 4 : A three-dimensional view of the splicing joint from another direction;

[0015] Figure 5 :The usage status effect diagram of this application. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0017] Specific embodiment 1: Please refer to Figures 1 to 4 In an embodiment of the utility model, a splicable combustion tube includes a tube body 1, a plug 2 and a splicing joint 3. The tube body 1 is made of PVC material, and the plug 2 and the splicing joint 3 are both made of PE material.

[0018] The pipe body 1 is a hollow tubular structure, the plug 2 is plugged into the bottom of the pipe body 1, the splicing joint 3 is plugged into the top of the pipe body 1, the splicing joint 3 includes a first joint 301 and a second joint 302, the first joint 301 is below the second joint 302, the first joint 301 and the second joint 302 are both hollow structures that run through the upper and lower ends thereof and are both connected to the pipe body 1, and multiple pipe bodies 1 with the same structure are sequentially plugged in and connected through the splicing joint 3, that is, the number of pipe bodies 1 used is adjusted according to the length of the on-site blasthole.

[0019] A raised positioning convex ring 303 is provided at the connection between the first joint 301 and the second joint 302. The first joint 301 includes a first mounting portion 301-2 and a first guide portion 301-1. The first mounting portion 301-2 is a hollow cylindrical structure. The outer diameter of the first mounting portion 301-2 matches the inner diameter of the tube body 1. The first guide portion 301-1 is an inverted conical structure. The first mounting portion 301-2 and the first guide portion 301-1 are coaxially arranged. A first cross-shaped slot 301-3 is provided on 01-1 at its axial position, and the first slot 301-3 is connected to the tube body 1. At the same time, the length of the slot on the first slot 301-3 extends to the first mounting portion 301-2, so that the first mounting portion 301-2 has an elastic structure, so that the first mounting portion 301-2 can be more tightly fitted with the tube body 1 when assembled. In addition, the outer diameter of the positioning convex ring 303 in the present application is larger than the outer diameters of the first joint 301 and the second joint 302.

[0020] The second joint 302 is a hollow cylindrical structure, and the outer diameter of the second joint 302 is the same as the outer diameter of the first mounting portion 301-2. A plurality of second slots 302-1 with opening structures are provided on the side wall of the second joint 302 in the vertical direction. Due to the provision of the second slots 302-1, the second joint 302 can be formed with an elastic structure, so that it can be installed more quickly and tightly with the pipe body 1.

[0021] The plug 2 includes a base plate 201 and a positioning block 202. The base plate 201 is fixed above the positioning block 202. Both the base plate 201 and the positioning block 202 are cylindrical structures. The positioning block 202 is inserted into the tube body 1. The outer diameter of the positioning block 202 matches the inner diameter of the tube body 1. The outer diameter of the base plate 201 is larger than the outer diameter of the positioning block 202. The positioning block 202 is provided with a concave third slot 202-1, and the third slot 202-1 is communicated with the tube body 1.

[0022] See also Figure 5 For the use of the combustion tube of the present application, a powdered combustion agent, such as a mixture of bamboo powder and nitrite powder, is placed in the tube body 1. After filling, a set number of tube bodies 1 are spliced ​​in sequence using the splicing joint 3. During the splicing, the wire is buried in the tube body 1. A plurality of ignition heads 5 are connected in series on the wire 4. The ignition heads 5 are evenly distributed in each tube body 1. Finally, the wire 4 passes through the first slot 301-3 on the splicing joint 3 on the top tube body 1 and is connected to the detonator.

[0023] Compared with the prior art, the present application discloses a splicable combustion tube, which utilizes a splicing joint to adjust the length of the combustion tube according to the actual length of the tunnel blasthole, and is more convenient to use and highly flexible. In addition, the conical portion can be used to transfer energy for combustion. When the fuel in one tube body is ignited, the conical portion of the splicing joint can transfer the flame to accelerate the ignition of the fuel in the other tube body, thereby improving the overall rock breaking effect.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A splicable combustion tube, characterized in that: It includes a tube body, a plug and a splicing joint, the tube body is a hollow tubular structure, the plug is plugged into the bottom of the tube body, the splicing joint is plugged into the top of the tube body, the splicing joint includes a first joint and a second joint, the first joint is below the second joint, the first joint and the second joint are both hollow structures running through the upper and lower ends thereof and are both connected to the tube body, and multiple tubes with the same structure are sequentially plugged in and connected through the splicing joint.

2. A splicable combustion tube according to claim 1, characterized in that: A raised positioning ring is provided at the connection between the first joint and the second joint, and the first joint includes a first mounting portion and a first material guiding portion, the first mounting portion is a hollow cylindrical structure, the outer diameter of the first mounting portion matches the inner diameter of the tube body, the first material guiding portion is an inverted conical structure, the first mounting portion and the first material guiding portion are coaxially arranged, and the first material guiding portion is provided with a first cross-shaped slot hole at its axial center position, and the first slot hole is communicated with the tube body.

3. A splicable combustion tube according to claim 2, characterized in that: The second joint is a hollow cylindrical structure, the outer diameter of the second joint is the same as the outer diameter of the first mounting portion, and a plurality of second slot holes with an opening structure are provided on the side wall of the second joint along the vertical direction.

4. A splicable combustion tube according to claim 3, characterized in that: The plug includes a base plate and a positioning block, the base plate is fixed above the positioning block, the base plate and the positioning block are both cylindrical structures, the positioning block is inserted into the tube body, the outer diameter of the positioning block matches the inner diameter of the tube body, the outer diameter of the base plate is larger than the outer diameter of the positioning block, and the positioning block is provided with a concave third slot hole, and the third slot hole is communicated with the tube body.

5. A splicable combustion tube according to claim 4, characterized in that: The pipe body is made of PVC material, and the plug and the splicing joint are both made of PE material.

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