CN111022919A - Gas cylinder firing device - Google Patents

Gas cylinder firing device Download PDF

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Publication number
CN111022919A
CN111022919A CN201911354148.4A CN201911354148A CN111022919A CN 111022919 A CN111022919 A CN 111022919A CN 201911354148 A CN201911354148 A CN 201911354148A CN 111022919 A CN111022919 A CN 111022919A
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CN
China
Prior art keywords
spring
firing pin
gas cylinder
ball
valve body
Prior art date
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Granted
Application number
CN201911354148.4A
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Chinese (zh)
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CN111022919B (en
Inventor
代绍晓
万曲
黄艳平
张鹏
高飞
文吉标
梁伟成
胡天鑫
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AVIC Aerospace Life Support Industries Ltd
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AVIC Aerospace Life Support Industries Ltd
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Priority to CN201911354148.4A priority Critical patent/CN111022919B/en
Publication of CN111022919A publication Critical patent/CN111022919A/en
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Publication of CN111022919B publication Critical patent/CN111022919B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • F17C13/04Arrangement or mounting of valves

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

The invention provides a gas cylinder firing device, which comprises a valve body, a stay cable, an end cover, a spring, a firing pin, a small ball and a stop block, wherein the valve body is axially provided with a step hole, one end of the valve body is sealed by the end cover, the other end of the valve body is connected with a gas cylinder interface to form a closed cavity, the firing pin is arranged in the cavity and comprises an annular step and a needle body, the spring is arranged between the end cover and the firing pin, one side of the valve body is provided with a small hole, the small ball is clamped in the small hole to prop against the annular step of the firing pin so as to overcome the spring force of the spring, the other end of the small ball is provided with the stop block for supporting and fixing the small ball, the small ball and the stop block are; the needle body is provided with an air guide hole, and the air guide hole is communicated with the air outlet connector. The invention has the characteristics of universal starting, strong operability and high reliability, and has higher popularization value.

Description

Gas cylinder firing device
Technical Field
The invention belongs to the field of lifesaving, and particularly relates to a gas cylinder firing device.
Background
The existing gas cylinder firing device generally adopts a rocker arm cam structure, when firing, a rocker arm needs to be continuously pulled to rotate by 180 degrees around a shaft in a limited plane, and the structure can meet the use requirement in an open space, but has the problems of inconvenient operation in a narrow space, low reliability and the like.
Disclosure of Invention
The purpose of the invention is: the invention provides a gas cylinder firing device which is not limited by an operation space, can universally open a firing gas cylinder and solves the technical problems that the firing operation of the existing gas cylinder in a narrow space is inconvenient and the reliability is low.
The technical scheme of the invention is as follows: a gas cylinder firing device, which comprises a valve body, a guy cable, an end cover, a spring, a firing pin, a small ball and a stop block, the valve body is provided with a step hole along the axial direction, one end of the valve body is sealed by an end cover, the other end of the valve body is connected with the gas cylinder interface to form a closed cavity, a firing pin is arranged in the cavity and comprises an annular step and a pin body, a spring is arranged between the end cover and the firing pin, one end of the spring is clamped on the end cover, the other end of the spring is clamped on the annular step of the firing pin, a gap for the firing pin to move towards the opening of the air bottle is reserved between the annular step and the step of the valve body which is provided with the step hole along the axial direction, one side of the valve body is provided with a small hole, the small ball is clamped in the small hole to prop against the annular step of the firing pin so as to overcome the spring force of the spring, the other end of the small ball is provided with a stop block for supporting and fixing the small ball, the small ball and the stop block are in clearance fit with the small hole, and the stop block is extruded in the small hole by a tail end ball head of the inhaul cable; the needle body is provided with an air guide hole which is communicated with the air outlet interface;
in the scheme, the spring presses the forward movement trend of the firing pin, the movement trend extrudes the small ball, the small ball transmits force outwards to the stop block, and the stop block extrudes the tail end ball head of the inhaul cable, so that the ball head forms an extrusion trend inwards to realize self-locking; when external force pulls the end of the inhaul cable to enable the ball head at the tail end to have force for moving outwards, the stop block is extruded and transmitted to the small ball to enable the small ball to retract, and the space which is reserved enables the inhaul cable to be pulled out; after the pull rope is pulled out, the restraint of the stop block, the small ball and the spring is released, and the spring 4 pushes the firing pin to move forwards to puncture the gas cylinder; the gas in the gas cylinder is transmitted into the air outlet interface through the gas guide hole of the firing pin.
In the above scheme, cable one end is the handle, and the end is the bulb, and the bulb of its end is in universal state when pulling handle, does not receive the space restriction, and the reliability is high.
In the scheme, the stay cable is positioned at the lower part of the stop block, so that the stay cable is propped against the stop block to realize self-locking.
In the above scheme, the stopper pushes the ball to limit the spring in a compressed state.
In the above scheme, after the ball releases the restriction of the spring, the spring drives the striker to move forward.
In the scheme, the firing pin is axially provided with a hollow air guide hole for guiding air and guiding water.
The invention has the beneficial effects that: the inhaul cable is in a universal state when being pulled, is not limited by space, and has high reliability. The stop block and the inhaul cable are self-locked. The stopper pushes the ball to limit the spring in a compressed state. After the small ball releases the restraint of the spring, the spring drives the firing pin to move forwards. The firing pin is axially provided with a hollow structure for air guide and drainage. The invention has the characteristics of universal starting, strong operability and high reliability, and has higher popularization value.
Drawings
Fig. 1 is a schematic assembly view (cocked) of the gas cylinder firing device of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1 in accordance with the present invention.
Fig. 3 is a schematic view of the assembly structure of the gas cylinder firing device of the invention (after firing).
Wherein, 1-valve body; 2-a guy cable; 3-end cover; 4-a spring; 5-a firing pin; 6-pellets; 7-a stop block; 8-small holes; 9-air vents; 10-an annular step; 11-a needle body; 12-a gas cylinder interface; 13-air outlet interface.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The present invention will be described in further detail below by way of specific embodiments:
a gas cylinder firing device comprises a valve body 1, a guy cable 2, an end cover 3, a spring 4, a firing pin 5, a small ball 6 and a stop dog 7, wherein a step hole is axially formed in the valve body 1, one end of the valve body is sealed by the end cover 3, the other end of the valve body is connected with a gas cylinder interface to form a closed cavity, the firing pin 5 is arranged in the cavity and comprises an annular step 10 and a needle body 11, the spring 4 is arranged between the end cover 3 and the firing pin 5, one end of the spring 4 is clamped on the end cover 3, the other end of the spring 4 is clamped on the annular step 10 of the firing pin 5, a gap for the firing pin 5 to run towards the opening of the gas cylinder is reserved between the annular step 10 and the step of the valve body 1, a small hole 8 is formed in one side of the valve body 1, the small ball 6 is clamped in the small hole 8 and abuts against the annular step 10 of the firing pin 5 to, the small ball 6, the stop dog 7 and the small hole 8 are in clearance fit, and the stop dog 7 is extruded in the small hole 8 by the tail end ball head of the inhaul cable 2; the needle body 11 is provided with an air guide hole 9, and the air guide hole 9 is communicated with an air outlet interface 13;
the inhaul cable 2 is positioned at the lower part of the stop block 7, so that the inhaul cable 2 is propped against the stop block 7 to realize self-locking.
The stopper 7 pushes the small ball 6 to limit the spring 4 in a compressed state.
After the small ball 6 releases the restraint of the spring 4, the spring 4 drives the striker 5 to move forwards.
The firing pin 5 is provided with a hollow air guide hole 9 along the axial direction for guiding air and guiding water.
The spring 4 presses the forward movement trend of the firing pin 5, the movement trend extrudes the small ball 6, the small ball 6 transmits force outwards to the stop dog 7, and the stop dog 7 extrudes the tail end ball head of the inhaul cable 2, so that the ball head forms an extrusion trend inwards to realize self-locking;
when external force pulls the end of the inhaul cable 2 to enable the ball head at the tail end to have force of moving outwards, the extrusion stop block 7 is conducted to the small ball 6 to enable the small ball 6 to retract, and the space which is reserved enables the inhaul cable 2 to be pulled out; after the inhaul cable 2 is pulled out, the restraint of the stop dog 7, the small ball 6 and the spring 4 is released, and the spring 4 pushes the firing pin 5 to move forwards to puncture the gas cylinder; the gas in the gas cylinder is transmitted into the gas outlet interface 13 through the gas guide hole 9 of the firing pin 5.
One end of the inhaul cable 2 is a handle, the end head is a ball head, the ball head at the end head is in a universal state when the handle is pulled, the inhaul cable is not limited by space, and the reliability is high.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (6)

1. A gas cylinder firing device is characterized by comprising a valve body (1), a pull rope (2), an end cover (3), a spring (4), a firing pin (5), a small ball (6) and a stop block (7), wherein the valve body (1) is axially provided with a step hole, one end of the valve body is sealed by the end cover (3), the other end of the valve body is connected with a gas cylinder connector to form a closed cavity, the firing pin (5) is arranged in the cavity, the firing pin (5) comprises an annular step (10) and a needle body (11), the spring (4) is arranged between the end cover (3) and the annular step (10) of the firing pin (5), one end of the spring (4) is clamped on the end cover (3), the other end of the spring is clamped on the annular step (10) of the firing pin (5), and a gap for the firing pin (5) to run towards the mouth of the gas cylinder is reserved between the annular step (10) and the step where, one side of the valve body (10) is provided with a small hole (8), the small ball (6) is clamped in the small hole (8) and abuts against the annular step (10) of the firing pin (5) to overcome the spring force of the spring (4), the other end of the small ball (6) is provided with a stop block (7) for supporting and fixing the small ball (6), the stop block (7) and the small hole (8) are in clearance fit, and the stop block (7) is extruded in the small hole (8) by a tail end ball head of the inhaul cable (2); the needle body (11) is provided with an air guide hole (9), and the air guide hole (9) is communicated with an air outlet interface (13).
2. A gas cylinder firing device according to claim 1, characterized in that one end of the pull cable (2) is a handle, the end is a ball, and the ball at the end is in a universal state when the handle is pulled.
3. A gas cylinder firing device according to claim 1, characterized in that the pull cable (2) is located at the lower part of the stop (7) so that the pull cable (2) is self-locking against the stop (7).
4. A cylinder firing device according to claim 1, wherein the stop (7) pushes the ball (6) to restrain the spring (4) in a compressed state.
5. A gas cylinder firing device according to claim 1, characterized in that after the ball (6) is released from the spring (4), the spring (4) drives the striker (5) forward.
6. A gas cylinder firing device according to claim 1, characterized in that the firing pin (5) is axially provided with a hollow gas-guiding hole (9) for guiding gas flow.
CN201911354148.4A 2019-12-24 2019-12-24 Gas cylinder firing device Active CN111022919B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911354148.4A CN111022919B (en) 2019-12-24 2019-12-24 Gas cylinder firing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911354148.4A CN111022919B (en) 2019-12-24 2019-12-24 Gas cylinder firing device

Publications (2)

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CN111022919A true CN111022919A (en) 2020-04-17
CN111022919B CN111022919B (en) 2024-08-09

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CN201911354148.4A Active CN111022919B (en) 2019-12-24 2019-12-24 Gas cylinder firing device

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10012684A1 (en) * 2000-03-15 2001-09-20 Khs Masch & Anlagenbau Ag Inert gas recovery device has two independent evacuation systems
KR20060005118A (en) * 2004-07-12 2006-01-17 현대자동차주식회사 Opening and closing structure of a fuel filler door in a vehicle
CN207334245U (en) * 2017-08-25 2018-05-08 凯迈(洛阳)气源有限公司 Bottle valve and the gas cylinder using the bottle valve
CN207956075U (en) * 2017-11-23 2018-10-12 航宇救生装备有限公司 A kind of firing lock
CN110037368A (en) * 2019-05-24 2019-07-23 苏州圣盾骑甲运动科技有限公司 A kind of safety inflated armor activating system
CN211551149U (en) * 2019-12-24 2020-09-22 航宇救生装备有限公司 Gas cylinder firing device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10012684A1 (en) * 2000-03-15 2001-09-20 Khs Masch & Anlagenbau Ag Inert gas recovery device has two independent evacuation systems
KR20060005118A (en) * 2004-07-12 2006-01-17 현대자동차주식회사 Opening and closing structure of a fuel filler door in a vehicle
CN207334245U (en) * 2017-08-25 2018-05-08 凯迈(洛阳)气源有限公司 Bottle valve and the gas cylinder using the bottle valve
CN207956075U (en) * 2017-11-23 2018-10-12 航宇救生装备有限公司 A kind of firing lock
CN110037368A (en) * 2019-05-24 2019-07-23 苏州圣盾骑甲运动科技有限公司 A kind of safety inflated armor activating system
CN211551149U (en) * 2019-12-24 2020-09-22 航宇救生装备有限公司 Gas cylinder firing device

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