CN210981042U - Portable tunnel blasting big gun hole stopper - Google Patents
Portable tunnel blasting big gun hole stopper Download PDFInfo
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- CN210981042U CN210981042U CN201921810117.0U CN201921810117U CN210981042U CN 210981042 U CN210981042 U CN 210981042U CN 201921810117 U CN201921810117 U CN 201921810117U CN 210981042 U CN210981042 U CN 210981042U
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- blast hole
- plug
- hole plug
- clamping groove
- blasting
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Abstract
The utility model discloses a portable tunnel blasting borehole plug, which is a cone, wherein an explosion-guide clamping groove is arranged at the side edge of the borehole plug of the cone, and the explosion-guide clamping groove is a trapezoid body; the utility model has simple structure and convenient manufacture, the blast hole plug adopting the cone is more convenient for blast hole plugging, the trapezoidal detonating clamping groove prevents the detonating tube or detonating cord from sliding out of the clamping groove, and the detonating tube is prevented from being scratched in the plugging process of the blast hole plug to avoid the phenomenon of misfire; the blast hole plug material is made of eva rods, and due to the fact that a large number of mutually-communicated micropores are formed in the material from the surface to the inside, the blast hole plug has certain air permeability, when tunnel blasting sound waves are incident to the surface of the porous material of the blast hole plug, air vibration in the micropores is caused, and due to friction resistance, viscous resistance of air and a heat conduction effect, a part of sound energy is converted into heat energy, so that the sound absorption effect is achieved, the blasting noise is reduced, the explosive consumption is reduced, and blasting vibration waves are reduced.
Description
Technical Field
The utility model belongs to the technical field of the tunnel bores and explodes the construction, concretely relates to portable tunnel blasting big gun hole stopper.
Background
The drilling and blasting method is the most common method for building stone tunnels at present, but because the drilling and blasting holes of the tunnels are horizontal holes, the blockage of blast holes is always a long-standing difficulty in the drilling and blasting construction of the tunnels, and the current situation of the blockage of the drilling and blasting blast holes of the tunnels in China is that the blast holes are rolled into rolls by explosive box paper shells and then are plugged into the blast hole openings or are blocked by the traditional red daub. When the blasthole adopts the carton to block up, it is not closely knit to block up, the blasting shock wave is too strong to the drill way direction, the energy is excessive and scattered, cause the explosive quantity big, it is big to the surrounding rock disturbance, the big serious blast effect scheduling problem that influences of blasting noise, when the stemming that adopts traditional red clay to make, because of stemming processing is slow, the transportation is inconvenient and fragile, lead to the stemming can't use or pack slowly at the scene, lead to construction progress slow, shortcoming such as with high costs, when adopting above-mentioned blasthole stopper, the easy roll-off of detonating cord, damage leads to the emergence of the phenomenon of refusing to explode.
Therefore, the portable vibration-damping sound-insulation tunnel blasting hole plug which can be densely filled, improves the blasting effect, can reduce vibration and insulate sound, is produced in a commercial mode and is stored for a long time is necessary and important.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a portable tunnel blasting big gun hole stopper to big gun hole stopper detonating cord roll-off easily, damage the problem that leads to the phenomenon of refusing to explode among the above-mentioned prior art of solution.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a portable tunnel blasting big gun hole stopper, big gun hole stopper is the cone, is equipped with the explosion-leading draw-in groove in the big gun hole stopper side of cone, the explosion-leading draw-in groove is the trapezoidal body.
Further, the blast hole plug is made of eva rods.
Further, the length of the blast hole plug is 10 cm.
The utility model has the advantages that: the structure is simple, the manufacture is convenient, the blast hole plug of the cone is more convenient for blast hole filling, the trapezoidal detonating clamping groove prevents the detonating tube or detonating cord from sliding out of the clamping groove, and the phenomenon of explosion rejection caused by scratching the detonating tube in the plugging process of the blast hole plug is avoided; the blast hole plug material is made of eva rods, and due to the fact that a large number of mutually-communicated micropores are formed in the material from the surface to the inside, the blast hole plug has certain air permeability, when tunnel blasting sound waves are incident to the surface of the porous material of the blast hole plug, air vibration in the micropores is caused, and due to friction resistance, viscous resistance of air and a heat conduction effect, a part of sound energy is converted into heat energy, so that the sound absorption effect is achieved, the blasting noise is reduced, the explosive consumption is reduced, and blasting vibration waves are reduced.
Drawings
Fig. 1 is a schematic structural view of a portable tunnel blasting hole plug of the utility model;
fig. 2 is a side view of fig. 1.
In the figure: 1. a blast hole plug; 2. and an explosion guide clamping groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, a portable tunnel blasting blasthole plug, wherein the blasthole plug 1 is a cone with the length of 10cm, an explosion guide clamping groove 2 is arranged on the side edge of the blasthole plug 1 of the cone, the explosion guide clamping groove 2 is a trapezoid body, and the blasthole plug is made of eva rods, so that the blasthole plug has certain air permeability, when tunnel blasting sound waves are incident on the surface of a porous material of the blasthole plug, air vibration in micropores is caused, and due to friction resistance, viscous resistance of air and heat conduction, a part of sound energy is converted into heat energy, so that a sound absorption effect is achieved, blasting noise is reduced, the explosive consumption is reduced, and blasting vibration waves are reduced; because the blast hole plug is made of eva rod, has certain flexibility, is gradually sealed in the process of filling, achieves the best filling effect,
during the use, after the blast hole explosive is loaded in the tunnel, install the detonating tube in the detonating draw-in groove 2 of blast hole stopper 1, follow the detonating tube with blast hole stopper 1 and to downthehole shutoff, adopt the gun rod to pack blast hole stopper 1 to hug closely explosive department, play effective shutoff and noise abatement effect.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a portable tunnel blasting big gun hole stopper which characterized in that: the blast hole plug is a cone, an explosion-conducting clamping groove is arranged on the side edge of the blast hole plug of the cone, and the explosion-conducting clamping groove is a trapezoid body.
2. A portable tunnel blasting blasthole plug as in claim 1, further comprising: the blast hole plug is made of eva rods.
3. A portable tunnel blasting blasthole plug as in claim 1, further comprising: the length of the blast hole plug is 10 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921810117.0U CN210981042U (en) | 2019-10-25 | 2019-10-25 | Portable tunnel blasting big gun hole stopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921810117.0U CN210981042U (en) | 2019-10-25 | 2019-10-25 | Portable tunnel blasting big gun hole stopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210981042U true CN210981042U (en) | 2020-07-10 |
Family
ID=71458009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921810117.0U Active CN210981042U (en) | 2019-10-25 | 2019-10-25 | Portable tunnel blasting big gun hole stopper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210981042U (en) |
-
2019
- 2019-10-25 CN CN201921810117.0U patent/CN210981042U/en active Active
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