CN112461056A - Mechanical detonator with striking firing function - Google Patents
Mechanical detonator with striking firing function Download PDFInfo
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- CN112461056A CN112461056A CN202011192172.5A CN202011192172A CN112461056A CN 112461056 A CN112461056 A CN 112461056A CN 202011192172 A CN202011192172 A CN 202011192172A CN 112461056 A CN112461056 A CN 112461056A
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- pin
- striking
- shell
- steel ball
- firing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a mechanical detonator with an impact firing function, which comprises: the device comprises a protection plug, a pipe seat, a sealing ring I, a shell, a fire cap, a retainer ring, a filler block, a striking pin body, a spring, a striking pin, a sealing ring II, a striking handle, a pin shaft, a safety spring pin, a slide rod, a steel ball and a plug; the shell is in butt joint with the tube seat, the sealing ring I is arranged between the shell and the tube seat, and the protective plug is arranged in the tube seat; the fire cap, the retainer ring, the filler block, the needle striking body, the spring, the steel ball and the plug are all arranged in an inner hole of the shell; the sparking pin penetrates through the firing pin body hole from the other end of the shell, and the ring-shaped groove at the end head of the sparking pin is clamped and fixed through the steel ball on the transverse hole of the filler block; the sparking pin and the shell are sealed through a sealing ring II; the striking handle is connected with the striking pin through a sliding rod; the striking handle is connected with the shell through a pin shaft, and the safety spring pin is inserted into a small hole in the shell. The invention realizes the physical separation of the mechanical detonator and the firing device by firing by depending on the impact kinetic energy, thereby greatly expanding the application scene of the mechanical detonation.
Description
Technical Field
The invention belongs to the technical field of initiating explosive, and particularly relates to a mechanical initiator with an impact firing function.
Background
The mechanical detonator is used as a firer initiation device which initiates by means of mechanical kinetic energy, is widely applied to the aerospace industry in China, and realizes initiation of a firer non-electric transmission explosion system or a firer actuating device. The functional requirements that can be achieved for a mechanical initiator vary according to the environment in which it is used. The mechanical initiator not only needs to have a reliable initiation function, but also needs to have high safety in a working state, and under a certain use vibration or impact environment, the mechanical initiator needs to keep the function safety and does not have the function of false triggering.
The mechanical detonator at present realizes the mechanical detonation of internal medicament through drawing a sparking pin structurally. During installation, the structure of the ignition pin extending out of the body is provided with a transverse hole, and the transverse hole is reliably connected with the drawing mechanism, so that the mechanical initiator is in a state of waiting for firing. During operation, the firing pin is pulled by the pulling mechanism to unlock the firing pin mechanism in the mechanical detonator, so that the firing pin is released and fired. The mechanical detonator has reliable realization of the working function under the action of reliable drawing of the sparking pin. When the drawing structure is invalid or invalid, the mechanical detonation function cannot be normally realized.
The existing mechanical exploder generally adopts a mode of manually pulling a pull pin or pulling a pull rod, a pull rope and the like, and realizes firing explosion by pulling a mechanical firing mechanism of the mechanical exploder through an operator or a driving device. The firing mode has obvious limitation, and the firing mechanism and the mechanical initiator firing mechanism must be reliably connected due to the adoption of pulling firing, so that the mechanical initiator cannot be applied in the application occasions where reliable connection cannot be realized to pull firing, such as the situation that the installation position of the mechanical initiator and the installation position of the firing mechanism belong to two independent devices respectively, or the reliable connection is unconditionally established.
Disclosure of Invention
The technical problem of the invention is solved: the defects of the prior art are overcome, the mechanical detonator with the impact firing function is provided, the physical separation of the mechanical detonator and the firing device is realized by means of impact kinetic energy firing, and the application scene of mechanical firing is greatly expanded.
In order to solve the technical problem, the invention discloses a mechanical detonator with an impact firing function, which comprises: the device comprises a protection plug, a pipe seat, a sealing ring I, a shell, a fire cap, a retainer ring, a filler block, a striking pin body, a spring, a striking pin, a sealing ring II, a striking handle, a pin shaft, a safety spring pin, a slide rod, a steel ball and a plug;
the shell is in butt joint with the tube seat, the sealing ring I is arranged on a sealing step between the shell and the tube seat to realize sealing, and the protective plug is arranged in the tube seat to protect the detonation channel;
the fire cap, the retainer ring, the filler block, the needle striking body, the spring, the steel ball and the plug are all arranged in an inner hole of the shell; the steel ball is positioned in the transverse hole of the firing pin body, the spring is compressed between the bottom of the hole in the shell and the step of the firing pin body, the retainer ring is tightly pressed and fixed with the shell after being screwed with the shell, fire caps are arranged in two holes on the filler block, which are opposite to the two firing pins of the firing pin body, and plugs are arranged in the other two holes;
the firing pin penetrates through the firing pin body hole from the other end of the shell, and the steel ball on the firing pin body transverse hole clamps the end head of the firing pin to be fixed in the annular groove; the sparking pin and the shell are sealed through a sealing ring II;
the striking handle is connected with the striking pin through a sliding rod; the striking handle is connected with the shell through a pin shaft, and the safety spring pin is inserted into a small hole in the shell to prevent false triggering.
In the mechanical initiator with the impact firing function, the assembling process of the pad, the firing pin body, the spring and the steel ball is as follows:
mounting a steel ball in a transverse hole of the firing pin body;
the steel ball and the firing pin body are arranged in the filler block together;
the steel ball, the needle striking body, the lining block and the spring are arranged in the shell together, the retainer ring is arranged in the shell, and the lining block is pressed tightly and the spring is compressed.
In the mechanical initiator with the impact firing function, the assembly process of the striking pin body, the steel ball and the striking pin and the lining block is as follows:
the firing pin penetrates through the firing pin body hole from the other end of the shell, the firing pin body is pushed through the blocking mounting hole to compress the spring for energy storage, and after the restraint of the steel balls is relieved, the firing pin penetrates through a gap between the two steel balls to be fixed;
the compression force of the striking pin body is removed, the striking pin body, the steel ball and the striking pin are locked and pressed in the lining block under the action of the elastic force of the spring, and the steel ball is clamped on the inclined plane of the lining block to enable the striking pin body to be in a state of waiting to be struck.
In the mechanical initiator with the impact firing function, a firing pin of the firing pin body keeps a certain safety distance from the bottom of a firing cap mounting hole; wherein, the value range of the safe distance is as follows: 2-5 mm.
In the mechanical detonator with the impact firing function, when the mechanical detonator is installed for use, the mechanical detonator is installed and fixed through a flange hole on a shell, a protective plug is removed, and the mechanical detonator is connected with a next-stage system or device to be detonated through a tube seat and serves as an initiation source.
In the mechanical detonator with the impact triggering function, when the mechanical detonator does not work, the safety spring pin is kept in a safety state, namely, the safety spring pin penetrates into the shell hole to limit the striking handle, so that the mechanical detonator is prevented from accidentally working due to turnover, transportation or accidental touch
In the mechanical initiator with the impact firing function, when the mechanical initiator needs to work, the safety spring pin is pulled out, and the mechanical initiator is in a state of waiting for initiation.
In the above mechanical initiator having the impact firing function, when the mechanical initiator operates:
impacting the impact handle extension at a certain speed by an impact block or an impact device;
the striking handle rotates around the pin shaft after being impacted, and the striking pin is pulled and pulled at the same time;
when the firing pin is pulled, the firing pin overcomes the resistance of the spring to generate compression because the firing pin passes through the restraint formed between the steel ball and the firing pin body; when the firing pin body moves to the position that the steel ball is separated, the firing pin is not restrained by the steel ball and is pulled out, meanwhile, the restraint between the firing pin body and the steel ball is removed, the firing pin body is reversely popped out under the action of the spring resistance force, the two firing pins on the firing pin body are correspondingly inserted into the holes with the fire caps, the firing caps are poked to fire, the gunpowder filled in the fire caps is detonated, and high-temperature gas is generated to ignite the next-stage system or device to be detonated.
The invention has the following advantages:
(1) the invention discloses a mechanical detonator with an impact firing function, which can reliably pull out a firing pin of the mechanical detonator by converting impact energy into rotation and drawing motion of a firing handle so as to realize the purpose of mechanical initiation; the mechanical initiator and the percussion device may be arranged separately and not necessarily connected to each other.
(2) The invention discloses a mechanical detonator with an impact firing function, which adopts an impact firing mechanism, the installation position and the installation angle of the mechanical detonator are not influenced, the mechanical detonator can be installed at any angle under the condition of ensuring that an impact device can impact with an impact handle, and the installation and arrangement modes are flexible and changeable.
(3) The invention discloses a mechanical detonator with an impact firing function, wherein the shape of a striking handle can be flexibly designed according to the shape and the height of an impact device, the shape of the impact position of the striking handle can be any shape, such as a cylinder, a cuboid, a prism, a sphere and the like, and the impact height can be designed according to actual requirements.
Drawings
FIG. 1 is a front view of a mechanical initiator having an impact firing function in an embodiment of the present invention;
FIG. 2 is a top view of a mechanical initiator with percussion firing functionality in an embodiment of the present invention;
FIG. 3 is a side view of a mechanical initiator having impact firing functionality in an embodiment of the present invention;
FIG. 4 is an elevational view of a mechanical initiator having impact firing capability after initiation in an embodiment of the present invention;
fig. 5 is a top view of a structure after initiation of a mechanical initiator having an impact firing function according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In the present embodiment, as shown in fig. 1 to 3, the mechanical initiator with impact firing function includes: the device comprises a protective plug 1, a tube seat 2, a sealing ring I3, a shell 4, a fire cap 5, a retainer ring 6, a lining block 7, a fire striking body 8, a spring 9, a fire striking pin 10, a sealing ring II 11, a fire striking handle 12, a pin shaft 13, a safety spring pin 14, a sliding rod 15, a steel ball 16 and a plug 17. Wherein, casing 4 and tube socket 2 butt joint installation, sealing washer I3 is installed and is realized sealedly on the sealed step between casing 4 and tube socket 2, and protection stopper 1 packs into in tube socket 2 and detonates the passageway protection. The fire cap 5, the retainer ring 6, the filler block 7, the needle striking body 8, the spring 9, the steel ball 16 and the plug 17 are all arranged in an inner hole of the shell 4; the steel ball 16 is positioned in the transverse hole of the firing pin body 8, the spring 9 is compressed between the bottom of the hole in the shell 4 and the step of the firing pin body 8, the retainer ring 6 is tightly screwed with the shell 4 and then compresses and fixes the filler block 7, the fire cap 5 is arranged in two holes on the filler block 7 opposite to two firing pins of the firing pin body 8, and the plugs 17 are arranged in the other two holes. The sparking pin 10 penetrates through the hole 8 of the striker body from the other end of the shell 4, and the annular groove at the end of the sparking pin 10 is clamped and fixed by the steel ball 16 on the transverse hole of the striker body 8; the sparking pin 10 and the shell 4 are sealed through a sealing ring II 11; the striking handle 12 is connected with the striking pin 10 through a sliding rod 15; the striking handle 12 is connected with the shell 4 through a pin shaft 13, and a safety spring pin 14 is inserted into a small hole on the shell 4 to prevent false triggering. Preferably, the firing pin of the firing pin body 8 keeps a certain safety distance with the bottom of the mounting hole of the fire cap 5, and the safety distance can be 6-10 mm.
In this embodiment, the assembling process of the pad 7, the striker body 8, the spring 9 and the steel ball 16 may be as follows: firstly, mounting a steel ball 16 in a transverse hole of a needle hitting body 8; then, the steel ball 16 and the hammer body 8 are put into the filler block 7 together; finally, the steel ball 16, the striker body 8, the pad 7 and the spring 9 are loaded together into the housing 4, and the retainer 6 is loaded into the housing 4, pressing the pad 7 and compressing the spring 9.
In this embodiment, the assembly process of the striker body 8, the steel ball 16 and the ignition pin 10 with the pad 7 may be as follows: the sparking pin 10 penetrates through the hole of the hammer body 8 from the other end of the shell 4, the hammer body 8 is pushed through the mounting hole of the plug 17 to compress the spring 9 for energy storage, and after the steel balls 16 are relieved, the sparking pin 10 penetrates through the gap between the two steel balls 16 to be fixed; the compression force of the firing pin body 8 is removed, the firing pin body 8, the steel ball 16 and the firing pin 10 are locked and pressed in the lining block 7 under the elastic force action of the spring 9, and the steel ball 16 is clamped on the inclined plane of the lining block 7 to enable the firing pin body 8 to be in a state to be fired.
In this embodiment, when the mechanical initiator is installed for use: the protection plug 1 is removed through the flange hole on the shell 4 for installation and fixation, and is connected with a next-stage system or device to be detonated through the tube seat 2 to be used as a detonating source. Further, when the mechanical detonator does not need to work, the safety spring pin 14 is kept in a safety state, namely, the safety spring pin 14 penetrates into the hole of the shell 4 to limit the impact handle 12, so that the mechanical detonator is prevented from working accidentally due to turnover, transportation or accidental touch. When the mechanical detonator needs to work, the safety spring pin 14 is pulled out, and the mechanical detonator is in a state of waiting for detonation.
In the present embodiment, as shown in fig. 4 and 5, the mechanical initiator operates: striking the protruding portion of the handle 12 at a certain speed by a striking block or striking device; the striking handle 12 rotates around the pin shaft 13 after being impacted, and simultaneously the striking pin 10 is pulled; when the ignition pin 10 is pulled, the ignition pin 10 is restrained with the firing pin body 8 through the steel ball 16, so that the firing pin body 8 overcomes the resistance of the spring 9 to generate compression; when the firing pin body 8 moves to the steel ball 16 and is separated, the firing pin 10 is not restrained by the steel ball 16 and is pulled out, meanwhile, the restraint between the firing pin body 8 and the steel ball 16 is relieved, the firing pin body 8 is reversely popped out under the action of the resistance force of the spring 9, two firing pins on the firing pin body 8 are correspondingly inserted into the hole provided with the fire cap 5, the firing cap 5 is poked to fire, gunpowder filled in the fire cap 5 is detonated, and high-temperature gas is generated to ignite the next-stage to-be-detonated system or device.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Those skilled in the art will appreciate that the invention may be practiced without these specific details.
Claims (8)
1. A mechanical initiator having impact firing functionality, comprising: the fire-fighting safety valve comprises a protection plug (1), a pipe seat (2), a sealing ring I (3), a shell (4), a fire cap (5), a check ring (6), a lining block (7), a striking pin body (8), a spring (9), a striking pin (10), a sealing ring II (11), a striking handle (12), a pin shaft (13), a safety spring pin (14), a sliding rod (15), a steel ball (16) and a plug (17);
the shell (4) is in butt joint with the tube seat (2), the sealing ring I (3) is arranged on a sealing step between the shell (4) and the tube seat (2) to realize sealing, and the protective plug (1) is arranged in the tube seat (2) to protect a detonation channel;
the fire cap (5), the retainer ring (6), the filler block (7), the needle striking body (8), the spring (9), the steel ball (16) and the plug (17) are all arranged in an inner hole of the shell (4); the steel ball (16) is positioned in the transverse hole of the hammer body (8), the spring (9) is tightly pressed between the bottom of the inner hole of the shell (4) and the step of the hammer body (8), the retainer ring (6) is tightly screwed with the shell (4) and then tightly presses and fixes the filler block (7), the fire cap (5) is arranged in two holes on the filler block (7) opposite to two hammer needles of the hammer body (8), and the plugs (17) are arranged in the other two holes;
the sparking pin (10) penetrates through the hole of the hammer body (8) from the other end of the shell (4), and an annular groove at the end of the sparking pin (10) is clamped and fixed by a steel ball (16) on a transverse hole of the hammer body (8); the sparking pin (10) and the shell (4) are sealed through a sealing ring II (11);
the striking handle (12) is connected with the striking pin (10) through a sliding rod (15); the striking handle (12) is connected with the shell (4) through a pin shaft (13), and the safety spring pin (14) is inserted into a small hole in the shell (4) to prevent false triggering.
2. The mechanical initiator with impact firing function according to claim 1, characterized in that the assembly process of the pad (7), the striker body (8), the spring (9) and the steel ball (16) is as follows:
a steel ball (16) is arranged in the transverse hole of the needle hitting body (8);
the steel ball (16) and the hammer body (8) are arranged in the filler block (7) together;
the steel ball (16), the hammer body (8), the filler block (7) and the spring (9) are arranged in the shell (4) together, the retainer ring (6) is arranged in the shell (4), and the filler block (7) is pressed and the spring (9) is compressed.
3. The mechanical initiator with impact firing function according to claim 1, characterized in that the assembly process of the firing pin body (8), the steel ball (16) and the firing pin (10) with the pad (7) is as follows:
the sparking pin (10) penetrates through the hole of the hammer body (8) from the other end of the shell (4), the hammer body (8) is pushed through the mounting hole of the plug (17) to compress the spring (9) for energy storage, and after the restraint of the steel balls (16) is relieved, the sparking pin (10) penetrates through the gap between the two steel balls (16) to be fixed;
the compression force of the striking pin body (8) is removed, the striking pin body (8), the steel ball (16) and the striking pin (10) are locked under the elastic force action of the spring (9) and pressed in the filler block (7), and the steel ball (16) is clamped on the inclined plane of the filler block (7) to enable the striking pin body (8) to be in a state to be struck.
4. The mechanical initiator with impact firing function according to claim 1, characterized in that the firing pin of the firing pin body (8) is kept at a certain safety distance from the bottom of the mounting hole of the firing cap (5); wherein, the value range of the safe distance is as follows: 2-5 mm.
5. The mechanical detonator with impact firing function according to claim 1, wherein the mechanical detonator is installed and fixed through a flange hole on the shell (4) when in use, the protective plug (1) is removed, and the mechanical detonator is connected with a next-stage system or device to be detonated through the tube seat (2) and is used as a detonation source.
6. The mechanical detonator with impact firing function of claim 5 wherein the safety spring pin (14) is kept in a safety state when the mechanical detonator is not required to operate, i.e. the safety spring pin (14) penetrates into the hole of the casing (4) and limits the striking handle (12) to avoid accidental operation of the mechanical detonator due to turnover, transportation or accidental touch.
7. The mechanical initiator with impact firing function according to claim 6, characterized in that the safety spring pin (14) is removed and the mechanical initiator is in a state of being detonated when the mechanical initiator needs to be operated.
8. The mechanical initiator with impact firing capability of claim 7, wherein the mechanical initiator is operative to:
striking the protruding part of the handle (12) with a certain speed by a striking block or a striking device;
the striking handle (12) rotates around the pin shaft (13) after being impacted, and the striking pin (10) is pulled and pulled at the same time;
when the ignition pin (10) is pulled, the ignition pin (10) is restrained with the striking pin body (8) through the steel ball (16), so that the striking pin body (8) overcomes the resistance of the spring (9) to generate compression; when the striking pin body (8) moves to the steel ball (16) to be separated, the striking pin (10) is not restrained by the steel ball (16) and is pulled out, meanwhile, the restraint between the striking pin body (8) and the steel ball (16) is removed, the striking pin body (8) is reversely popped out under the action of the resistance force of the spring (9), two striking pins on the striking pin body (8) are correspondingly inserted into holes provided with the fire caps (5), the fire caps (5) are poked to fire, gunpowder filled in the fire caps (5) is detonated, and high-temperature gas is generated to ignite the next-stage system or device to be detonated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011192172.5A CN112461056B (en) | 2020-10-30 | 2020-10-30 | Mechanical detonator with striking firing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011192172.5A CN112461056B (en) | 2020-10-30 | 2020-10-30 | Mechanical detonator with striking firing function |
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| CN112461056A true CN112461056A (en) | 2021-03-09 |
| CN112461056B CN112461056B (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011192172.5A Active CN112461056B (en) | 2020-10-30 | 2020-10-30 | Mechanical detonator with striking firing function |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295052A (en) * | 2021-06-30 | 2021-08-24 | 华能山东石岛湾核电有限公司 | Split type mechanical detonator and explosion valve cartridge case driving device |
| CN113932670A (en) * | 2021-10-22 | 2022-01-14 | 江西洪都航空工业集团有限责任公司 | External detonation handle of cabin cover breaking system |
| CN113955126A (en) * | 2021-10-22 | 2022-01-21 | 江西洪都航空工业集团有限责任公司 | External detonating handle of cabin cover micro-detonating system |
| CN114506789A (en) * | 2022-02-24 | 2022-05-17 | 常州大学 | Portable gas-driven expander and method |
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| CN104290074A (en) * | 2014-09-02 | 2015-01-21 | 国网安徽省电力公司阜阳供电公司 | Cotter pulling tool |
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| GB1444691A (en) * | 1973-01-05 | 1976-08-04 | Buck Kg | Firing pin ignition devices |
| US4509427A (en) * | 1983-03-14 | 1985-04-09 | The United States Of America As Represented By The Secretary Of The Navy | Tail fin firing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113295052A (en) * | 2021-06-30 | 2021-08-24 | 华能山东石岛湾核电有限公司 | Split type mechanical detonator and explosion valve cartridge case driving device |
| CN113932670A (en) * | 2021-10-22 | 2022-01-14 | 江西洪都航空工业集团有限责任公司 | External detonation handle of cabin cover breaking system |
| CN113955126A (en) * | 2021-10-22 | 2022-01-21 | 江西洪都航空工业集团有限责任公司 | External detonating handle of cabin cover micro-detonating system |
| CN113932670B (en) * | 2021-10-22 | 2023-03-07 | 江西洪都航空工业集团有限责任公司 | External detonation handle of cabin cover breaking system |
| CN113955126B (en) * | 2021-10-22 | 2023-08-29 | 江西洪都航空工业集团有限责任公司 | Outer detonating handle of canopy micro-blasting cable system machine |
| CN114506789A (en) * | 2022-02-24 | 2022-05-17 | 常州大学 | Portable gas-driven expander and method |
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|---|---|
| CN112461056B (en) | 2023-02-03 |
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