CN-116006564-B - Explosion bolt sealing device

CN116006564BCN 116006564 BCN116006564 BCN 116006564BCN-116006564-B

Abstract

The invention discloses an explosion bolt sealing device. The device comprises a connecting rod, an electric explosion tube, a cable, a rubber pad and a medicine charging chamber, wherein a first wire passing hole and a decompression cavity are formed in the connecting rod, the first wire passing hole is communicated with the decompression cavity, a plurality of wires are arranged at one end of the electric explosion tube, the wires are arranged at intervals, the cable passes through the first wire passing hole and is connected with all the wires passing through the decompression cavity, the rubber pad is arranged between the decompression cavity and the electric explosion tube, a plurality of second wire passing holes are formed in the rubber pad, the second wire passing holes are arranged in one-to-one correspondence with the wires, one end of the medicine charging chamber is an annular groove, the other end of the medicine charging chamber is a T-shaped frame, the annular groove is of a longitudinal structure, and the annular groove sequentially surrounds the electric explosion tube, the rubber pad and the connecting rod. Through set up a plurality of second wire holes on the rubber pad, guaranteed also that there is the rubber pad to seal between a plurality of wires, after ring channel and T type frame separation, prevented that rivers from entering into inside the aircraft control circuit along the cable to damage the circuit.

Inventors

CHEN YINGJIE
CHAI FEI
LEI QINGJUN
TANG SHIGUO
XUE GUILIN
WANG JIAN
TANG XIAOQING
YOU PENG

Assignees

山西汾西重工有限责任公司

Dates

Publication Date: 20260508
Application Date: 20230104

Claims (7)

1. An explosive bolt sealing device, comprising: The connecting rod is provided with a first wire through hole and a pressure reducing cavity, wherein the first wire through hole is communicated with the pressure reducing cavity; the electric explosion tube is provided with a plurality of wires at one end, and the wires are arranged at intervals; a cable connected to all of the wires passing through the pressure relief cavity through the first wire passing hole; The rubber pad is arranged between the pressure reducing cavity and the electric explosion tube, a plurality of second wire through holes are formed in the rubber pad, and the second wire through holes are arranged in one-to-one correspondence with the wires; The explosive loading chamber is provided with an annular groove at one end and a T-shaped frame at the other end, wherein the annular groove is of a longitudinal structure and sequentially surrounds the electric explosion tube, the rubber pad and the connecting rod; a medicine for generating gas is arranged in the electric explosion tube, and when the electric explosion tube ignites and explodes, the medicine generates high-pressure gas and is input into the pressure reducing cavity; The rubber pad comprises a first connecting part and a second connecting part which are fixedly connected, wherein the first connecting part is of a round table structure, and the second connecting part is of a cylindrical structure; the diameter of the first end face of the first connecting part is larger than the diameter of the second end face of the first connecting part, and the diameter of the second end face of the first connecting part is equal to the diameter of the first end face of the second connecting part; A sealing groove is arranged on the outer side wall of the connecting rod, the sealing groove is positioned between the connecting rod and the charging chamber, and an O-shaped sealing ring is arranged on the sealing groove.
2. The apparatus of claim 1, further comprising a first gasket; the first gasket is arranged between the pressure reducing cavity and the rubber pad, a plurality of third wire through holes are formed in the first gasket, and the third wire through holes are arranged in one-to-one correspondence with the plurality of wires.
3. The apparatus of claim 2, further comprising a second gasket; The second gasket is arranged between the rubber pad and the electric explosion tube, a plurality of fourth wire through holes are formed in the second gasket, and the fourth wire through holes are arranged in one-to-one correspondence with the plurality of wires.
4. A device according to claim 3, characterized in that: The first end face of the first connecting part is connected with the first gasket, the second end face of the first connecting part is connected with the first end face of the second connecting part, and the second end face of the second connecting part is connected with the second gasket.
5. The apparatus according to claim 2, wherein: And limiting lugs are arranged at two ends of the first gasket and used for preventing the connecting rod from rotating to drive the first gasket to rotate when the connecting rod is screwed with the charging chamber.
6. The apparatus according to claim 1, wherein: and a connector is arranged on the cable and is positioned in the aircraft control circuit.
7. The apparatus according to claim 1, wherein: The surface of the annular groove, which is contacted with the T-shaped frame, is a burst surface, and when the electric explosion tube ignites and explodes, the charging chamber is disconnected along the burst surface so as to separate the annular groove from the T-shaped frame.

Description

Explosion bolt sealing device Technical Field The invention relates to the technical field of explosive bolts, in particular to an explosive bolt sealing device. Background The technology of underwater vehicles is rapidly developed, various separation explosion bolts are needed, and the reliability is required to be very high. In the prior art, the common separation explosion bolt mainly comprises a cable, a connecting rod, a medicine loading chamber, a gasket, a rubber pad and an electric detonator. The electric detonator is characterized in that a wire passing hole is formed in the connecting rod, a plurality of wires are arranged at one end of the electric detonator and are arranged at intervals, a cable passes through the wire passing hole to be connected with all the wires, rubber pads are arranged on the periphery of all the wires, the rubber pads do not seal gaps among the wires, one end of the medicine loading chamber is an annular groove, the other end of the medicine loading chamber is a T-shaped frame, the annular groove is of a longitudinal structure, and the annular groove sequentially surrounds the electric detonator, the rubber pads and the connecting rod. In the deepwater ignition test, when the electric detonator is ignited and exploded, high-pressure gas generated in the electric detonator leaks from the joint of the connecting rod and the charging chamber, or the phenomenon that a cable blows out from a wire passing hole of the connecting rod occurs, so that the air pressure in a cavity of the electric detonator is insufficient, an explosion bolt cannot be exploded or the function is invalid, and when the electric detonator is ignited and exploded, an annular groove and a T-shaped frame are exploded and separated, the electric detonator is exploded, water flows in along the annular groove and enters the cable along gaps among a plurality of wires, and then enters the inside of a control circuit of the aircraft, so that the circuit is damaged. The explosion bolt separation device aims at solving the problems that in the prior art, the explosion bolt cannot be broken due to unreliable sealing, and the explosion bolt is separated from a T-shaped frame after deep water test explosion, water is led to enter into an aircraft control circuit sequentially along gaps among the annular groove and a plurality of wires and cables under the action of water pressure, so that the circuit is damaged, and an effective solution is not proposed at present. Disclosure of Invention The embodiment of the invention provides an explosion bolt sealing device, which is used for solving the problems that in the prior art, the explosion bolt cannot be broken due to unreliable sealing of the separated explosion bolt, and the explosion bolt is separated from a T-shaped frame after a deep water test is broken, so that water sequentially enters into an aircraft control circuit along gaps among the annular groove and a plurality of wires and cables under the action of water pressure, thereby damaging the circuit. The invention provides an explosion bolt sealing device which comprises a connecting rod, a first wire passing hole, a decompression cavity, an explosion tube, a cable, a rubber gasket, a plurality of second wire passing holes, an annular groove and a T-shaped frame, wherein the first wire passing hole is formed in the connecting rod, the first wire passing hole is communicated with the decompression cavity, a plurality of wires are arranged at one end of the explosion tube, the wires are arranged at intervals, the cable passes through the first wire passing hole and is connected with all the wires passing through the decompression cavity, the rubber gasket is arranged between the decompression cavity and the explosion tube, the rubber gasket is provided with the plurality of second wire passing holes, the plurality of second wire passing holes are arranged in one-to-one correspondence with the plurality of wires, one end of the explosion chamber is an annular groove, the other end of the explosion chamber is a T-shaped frame, the annular groove is of a longitudinal structure, and the annular groove sequentially surrounds the explosion tube, the rubber gasket and the connecting rod. Optionally, a sealing groove is arranged on the outer side wall of the connecting rod, the sealing groove is positioned between the connecting rod and the charging chamber, and an O-shaped sealing ring is arranged on the sealing groove. The novel pressure reducing device comprises a pressure reducing cavity, a rubber pad, a first gasket, a plurality of third wire through holes, a plurality of second wire through holes and a plurality of wires, wherein the first gasket is arranged between the pressure reducing cavity and the rubber pad, the plurality of third wire through holes are arranged on the first gasket, and the plurality of third wire through holes are arranged in one-to-one correspondence with the plurality of wires. The elec