阅读说明：本技术 一种水下用手持式聚能切割器 (Underwater handheld energy gathering cutter ) 是由 姜涛 詹发民 周方毅 黄雪峰 李玉君 尹力 于 2019-11-14 设计创作，主要内容包括：本发明属于爆破技术领域,尤其涉及一种水下用手持式聚能切割器,包括第一壳体、第二壳体、药型罩、起爆控制组件和电雷管起爆线路；第一壳体、第二壳体依次设置于药型罩的上方,第一壳体与第二壳体形成的空间内设置有高聚物复合材料,第二壳体与药型罩形成的空间内填充有炸药,第一壳体的内部上端中央设置有雷管室,雷管室内放置电雷管,所述雷管室连通第一壳体和第二壳体,第一壳体的上方设置有手柄,手柄的底部雷管室相连通,手柄内设置有电雷管起爆线路,电雷管起爆线路内串联有水压开关和手动开关。本发明的爆炸碎片不会蹦出,冲击波大大减弱,能够满足潜水员水下作业安全,具有良好的市场前景。(The invention belongs to the technical field of blasting, and particularly relates to an underwater handheld energy-gathering cutter which comprises a first shell, a second shell, a shaped charge liner, an initiation control assembly and an electric detonator initiation circuit; the first shell and the second shell are sequentially arranged above the shaped charge cover, a high polymer composite material is arranged in a space formed by the first shell and the second shell, explosive is filled in a space formed by the second shell and the shaped charge cover, a detonator chamber is arranged in the center of the upper end of the interior of the first shell, an electric detonator is placed in the detonator chamber, the detonator chamber is communicated with the first shell and the second shell, a handle is arranged above the first shell, the detonator chamber at the bottom of the handle is communicated with the detonator chamber, an electric detonator initiation circuit is arranged in the handle, and a water pressure switch and a manual switch are connected in series in the electric detonator initiation circuit. The invention has the advantages that the explosive fragments can not jump out, the shock wave is greatly weakened, the safety of underwater operation of divers can be met, and the invention has good market prospect.)

1. An underwater hand-held concentrator cutter, comprising: the detonation device comprises a first shell, a second shell, a liner, a detonation control assembly and an electric detonator detonation circuit; the longitudinal section of the shaped charge liner is of an inverted V-shaped structure, the first shell is arranged outside the upper part of the shaped charge liner, the second shell is arranged below the first shell and above the shaped charge liner, and the lower end parts of the left side and the right side of the first shell and the lower end parts of the left side and the right side of the second shell are fixedly connected with the corresponding side end parts of the shaped charge liner; the first shell and the second shell are both made of high-strength steel, a high polymer composite material is arranged in a space formed by the first shell and the second shell, the space formed by the second shell and the liner is filled with explosive, the center of the upper end in the first shell is provided with a detonator chamber, the detonator chamber extends from the inside of the first shell to the inside of the second shell, an electric detonator is placed in the detonator chamber, a cavity between the second shell and the outer side of the upper end of the shaped charge liner forms the explosive height of the explosive, a handle is arranged above the first shell, the handle is of a tubular structure, the bottom of the handle is communicated with the detonator chamber, an electric detonator priming circuit is arranged in the handle, the electric detonator priming circuit is internally connected with a water pressure switch, a manual switch, an electric detonator and a storage battery in series, and the storage battery provides a power supply for the electric detonator priming circuit.

2. The subsea hand-held concentrator cutter of claim 1, wherein: the electric detonator priming circuit also comprises a mechanical switch for safety, and the mechanical switch is connected in series in the electric detonator priming circuit through a lead.

3. The subsea hand-held concentrator cutter of claim 1, wherein: the shaped charge liner is made of red copper.

4. The subsea hand-held concentrator cutter of claim 1, wherein: the opening angle of the inverted V-shaped top of the shaped charge liner is 60-90 degrees, and the shaped charge liner is in a strip shape.

5. The subsea hand-held concentrator cutter of claim 1, wherein: the thickness of the first shell is 0.3 cm-0.5 cm, and the thickness of the second shell is 0.2 cm-0.4 cm.

6. The subsea hand-held concentrator cutter of claim 1, wherein: the explosive is plastic explosive, and the charging length is the same as that of the shaped charge cover.

7. The subsea hand-held concentrator cutter of claim 1, wherein: the wall thickness of the liner is 0.2cm, and the bus length of the liner is 3 cm.

8. The subsea hand-held concentrator cutter of claim 1, wherein: the high polymer composite material is metal foamed aluminum.

9. The subsea hand-held concentrator cutter of claim 1, wherein: the detonator shell comprises a shell body, a detonator shell, a handle, a detonator shell, a hole A, a hole B, a detonator chamber, a hole A, a hole B, a hole A, a hole B, a hole A, a hole B, a.

10. The subsea hand-held concentrator cutter of claim 1, wherein: the handle is made of metal materials.

Technical Field

The invention belongs to the technical field of blasting, and particularly relates to an underwater handheld energy-gathering cutter.

Background

When cutting the cable, the energy-gathering charge technology is utilized, the high-speed jet flow generated during explosive explosion cuts the cable, and when underwater diving operators cut the underwater cable and the optical cable, large impact waves and countless fragments caused by explosion cause great safety threats to the operators, so that the underwater cutting technology needs to be improved urgently.

Disclosure of Invention

In view of the above deficiencies of the prior art, the present invention provides an underwater handheld cumulative cutter which can greatly increase the safety factor of underwater cutting operators in cable cutting through structural improvement.

The technical scheme adopted by the invention for solving the technical problems is as follows: a hand-held underwater cumulative cutter for cutting underwater lines. The cutter adopts a small-charge energy-gathering structure, and uses a high polymer material to absorb shock waves and fragments, so that the cutting effect and the safety of divers are ensured.

The invention comprises a first shell, a second shell, a shaped charge liner, an initiation control component and an electric detonator initiation circuit; the longitudinal section of the shaped charge liner is of an inverted V-shaped structure, the first shell is arranged outside the upper part of the shaped charge liner, the second shell is arranged below the first shell and above the shaped charge liner, and the lower end parts of the left side and the right side of the first shell and the lower end parts of the left side and the right side of the second shell are fixedly connected with the corresponding side end parts of the shaped charge liner; the first shell and the second shell are both made of high-strength steel, a high polymer composite material is arranged in a space formed by the first shell and the second shell, explosive is filled in a space formed by the second shell and the shaped charge cover, a detonator chamber is arranged in the center of the upper end in the first shell, the detonator chamber extends into the second shell from the inside of the first shell, an electric detonator is placed in the detonator chamber, a cavity between the second shell and the outer side of the upper end of the shaped charge cover forms explosive height of the explosive, a handle is arranged above the first shell, the handle is of a tubular structure, the bottom of the handle is communicated with the detonator chamber, an electric detonator initiation line is arranged in the handle, a water pressure switch, a manual switch, an electric detonator and a storage battery are connected in series in the electric detonator initiation line, and the distance between the water pressure switch and the first shell is 10 cm-50 cm, the water pressure switch is used for ensuring the position of the initiation point in water, the electric detonator initiation circuit can be switched on only when the water pressure switch and the manual switch are switched on together, and the storage battery provides a power supply for the electric detonator initiation circuit.

The explosive is coated by a metal shell and a high polymer composite material, so that fragments of the explosive explosion shell are blocked, and the shock wave of the explosive is attenuated. The hydraulic switch has the advantages that the water pressure is utilized, the water depth is sensed, the misoperation of the detonation component on the shore is avoided, and the switch is switched on only when the water depth reaches a set degree.

The manual switch is a detonation button of the diver for detonating the cutter underwater. The press switch with a waterproof sealing structure can be selected.

Further, a mechanical switch for safety is further included in the electric detonator initiation line, and the mechanical switch is connected in series in the electric detonator initiation line through a lead. When the mechanical switch, the hydraulic switch and the manual switch are switched on together, the circuit is switched on, and the mechanical switch is used for ensuring the safety of the whole device in the transportation process.

Furthermore, the liner is made of red copper.

Furthermore, the opening angle of the inverted V-shaped top of the liner is 60-90 degrees, and the liner is in a long strip shape.

Further, the thickness of the first shell is 0.3 cm-0.5 cm, the diameter is 3cm, and the length is 5cm, and the thickness of the second shell is 0.2 cm-0.4 cm, the diameter is 13cm, and the length is 5 cm.

Furthermore, the explosive is plastic explosive, the charging length is the same as that of the shaped charge cover, and the charging amount is 18-20 g.

Further, the wall thickness of the liner is 0.2cm, and the bus length of the liner is 3 cm.

Further, the high polymer composite material is metal foamed aluminum.

Furthermore, a hole A is formed in the center of the top of the first shell, a hole B is formed in the center of the top of the second shell, the detonator chamber penetrates through the hole A and the hole B, the bottom of the handle is fixedly connected with the periphery of the hole A of the first shell in a sealing mode, and the bottom of the handle is communicated with the detonator chamber.

Further, the handle is a metal tube.

The invention has the following beneficial effects: according to the energy gathering cutter, the explosive is coated by the high polymer composite material arranged among the first shell, the second shell, the double-layer metal shell and the double-metal shell, a small explosive charge design is adopted, and the high polymer material is used for absorbing shock waves and fragments, so that the cutting effect and the safety of divers are ensured; and a water pressure switch is arranged for controlling the depth of the cutter under water, and the electric detonator detonating circuit can be conducted only when the set depth is reached, so that the safety of divers is further ensured.

Drawings

FIG. 1 is a schematic longitudinal cross-sectional elevational view of an embodiment of the present invention;

FIG. 2 is a diagrammatic illustration of an electric detonator initiation line in accordance with an embodiment of the present invention;

FIG. 3 is a schematic diagram of a mechanical switch in an embodiment of the present invention;

in the figure: 1. the detonator comprises a first shell 11, a high polymer composite material 12, an electric detonator 2, a second shell 21, an explosive 3, a liner 4, a handle 5, an electric detonator detonating circuit 51, a hydraulic switch 52, a manual switch 53, a mechanical switch 54, a storage battery 55, a lead 551, a contact 56, a safety pin 57, a metal sheet 58 and a spring.

Detailed Description

The invention is further described below with reference to the accompanying drawings.