CN112066788A - High-safety and high-reliability mechanical firing mechanism - Google Patents
High-safety and high-reliability mechanical firing mechanism Download PDFInfo
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- CN112066788A CN112066788A CN202010923714.5A CN202010923714A CN112066788A CN 112066788 A CN112066788 A CN 112066788A CN 202010923714 A CN202010923714 A CN 202010923714A CN 112066788 A CN112066788 A CN 112066788A
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- Prior art keywords
- pin
- firing
- safety
- spring
- bullet
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
- F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
- F41A19/13—Percussion or firing pins, i.e. fixed or slidably-mounted striker elements; Mountings therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A17/00—Safety arrangements, e.g. safeties
- F41A17/64—Firing-pin safeties, i.e. means for preventing movement of slidably- mounted strikers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A17/00—Safety arrangements, e.g. safeties
- F41A17/64—Firing-pin safeties, i.e. means for preventing movement of slidably- mounted strikers
- F41A17/66—Firing-pin safeties, i.e. means for preventing movement of slidably- mounted strikers automatically operated, i.e. operated by breech opening or closing movement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention relates to a high-safety and high-reliability mechanical firing mechanism, belonging to the technical field of initiating explosive devices; comprises a percussion component, a body, a plug and a micro-control mechanism; the firing assembly comprises a firing spring and a firing pin, the firing spring and the firing pin are coaxially arranged in a through hole of the body, and a port at one end of the through hole, where the firing spring is arranged, is sealed by a plug; the micro-control mechanism comprises a steel ball, a cover plate, a spring wall pin, a safety pin and a release spring; the bullet wall pin is fixed through the safety pin when the product is delivered, and after the bullet wall pin is assembled to a weapon system, the bullet wall pin is fixed through the inner wall of the mother bullet, so that the safety is high; when the bullet is thrown out of the mother bullet, the restraint of the bullet wall pin by the bullet wall of the mother bullet is removed, the bullet wall pin is axially displaced by the thrust of the release spring, the restraint of the bullet wall pin on the steel ball is removed, the steel ball moves, the restraint of the steel ball on the firing pin is removed, the firing pin moves forwards under the push of the firing spring, the mechanical firing effect is accurately realized in the continuous release process, the whole firing process is not influenced by external force, and the micro-control mechanism is stable and reliable.
Description
Technical Field
The invention belongs to the technical field of initiating explosive devices, and particularly relates to a high-safety and high-reliability mechanical firing mechanism.
Background
A firing mechanism, a firearm component which uses a firing pin to strike the primer to fire. The time from the release pin to the firing is short, the impact is small, and therefore, the requirement for improving the firing precision of the priming system is high.
At present, the domestic firer device is in the field of weapon systems, and the applied mechanical firing mechanism mainly comprises a pull-out type mechanical firing mechanism; secondly, the poke rod controls the starting of the firing mechanism to have instability, the poke rod only can limit the axial displacement of the firing pin, the radial displacement of the firing pin cannot be restricted, and the firing pin is easy to be started by mistake under the environment mechanics of external high overload impact and all directions, so the environment-resistant mechanical property is low, and the safety is poor.
Disclosure of Invention
The technical problem to be solved is as follows:
in order to avoid the defects of the prior art, the invention provides the high-safety and high-reliability mechanical firing mechanism, a weapon system is not required to provide external force, the firing mechanism is taken out when a bullet is thrown out of a mother bullet, the constraint of the whole firing mechanism is relieved by the bullet wall of the mother bullet, the micro-control mechanism is started, the self-relief of the safety and the starting of the firing mechanism can be realized by an internal mechanism, the external force action is not required, and the high-safety and high-reliability mechanical firing mechanism is high in safety and reliable in action. The firing mechanism is secured at the time of delivery by a safety pin that is removed after assembly to the weapon system.
The technical scheme of the invention is as follows: a high-safety and high-reliability mechanical firing mechanism comprises a firing assembly, wherein the firing assembly comprises a firing spring and a firing pin, and the firing pin completes firing action under the action of the firing spring; the method is characterized in that: the device also comprises a body, a plug and a micro-control mechanism; the body is of a columnar structure, and a through hole is formed in the body in parallel to the axial direction; the firing spring and the firing pin are coaxially arranged in the through hole of the body and are in clearance fit with the through hole, and the port at one end of the through hole, where the firing spring is arranged, is sealed by a plug;
the micro-control mechanism comprises a steel ball, a cover plate, a spring wall pin, a safety pin and a release spring; the end surface of the body is provided with a first blind hole vertical to the axial direction of the through hole, and the first blind hole is communicated with the through hole; the steel ball is arranged in the first blind hole, and falls into a positioning groove formed in the circumferential surface of the firing pin in a state to be fired; the side wall of the body is provided with a stepped blind hole vertical to the axial direction of the first blind hole, and the small-diameter end of the stepped blind hole is communicated with the first blind hole; the bullet wall pin is of a stepped columnar structure, the small-diameter end of the bullet wall pin is inserted into the small-diameter end of the stepped blind hole, and the side wall of the bullet wall pin tightly presses the steel ball, so that the limit of the firing pin is realized; the release spring is sleeved at the small-diameter end of the elastic wall pin and is positioned between the step surface of the stepped blind hole and the step surface of the elastic wall pin; the end face of the body is provided with a second blind hole perpendicular to the step blind hole, the second blind hole is communicated with the step blind hole, the safety pin is inserted into the second blind hole and penetrates through a hole in the peripheral wall of the large-diameter end of the elastic wall pin, and the elastic wall pin is fixed on the body by the safety pin to lock the micro-control mechanism;
the hole opening of the first blind hole is closed by the cover plate.
The further technical scheme of the invention is as follows: the large-diameter end of the bullet wall pin is a convex spherical surface and is used for reducing friction with a female bullet.
The further technical scheme of the invention is as follows: the elastic wall pin is of a T-shaped structure, and the small end of the elastic wall pin is cylindrical and used for fixing the steel ball; the big end is cylindrical, and a threaded blind hole with the diameter of 2.7mm is arranged at a position 9.3mm away from the tail end of the big end and is used for fixing the safety pin.
The further technical scheme of the invention is as follows: the safety pin is of a T-shaped structure, the large end of the safety pin is cylindrical, and a wrench groove with the width of 1.5mm and the depth of 1.5mm is formed in the tail part of the safety pin; the small end is provided with an external thread for connecting the body and the elastic wall pin.
The further technical scheme of the invention is as follows: the plug is of a T-shaped structure, and the small end of the plug is cylindrical and used for limiting the firing spring; the big end is a thread and is used for connecting with the body; the tail part of the thread is provided with a wrench groove with the width of 1.5mm and the depth of 1.5mm, and the wrench groove is connected with the body in a way of coating epoxy curing glue on the thread.
The further technical scheme of the invention is as follows: the firing spring is an annular compression spring and is used for pushing the firing pin.
The further technical scheme of the invention is as follows: the release spring is an annular compression spring and is used for pushing the elastic wall pin.
The further technical scheme of the invention is as follows: the firing pin is of a columnar structure, the front end of the firing pin is a triangular tip, the circumferential surface of the middle part of the firing pin is provided with a positioning ring groove, and the rear end of the firing pin is cylindrical.
The further technical scheme of the invention is as follows: the cover plate is of a circular plate structure.
Advantageous effects
The invention has the beneficial effects that: according to the high-safety and high-reliability mechanical firing mechanism, the bullet wall pin is fixed through the safety pin when the firing mechanism delivers a product, and after the firing mechanism is assembled to a weapon system, the bullet wall pin is fixed through the inner wall of the mother bullet, so that the firing mechanism is high in safety; when the bullet is thrown out of the mother bullet, the restraint of the bullet wall pin by the bullet wall of the mother bullet is removed, the bullet wall pin is subjected to axial displacement by the thrust of the compressed release spring, the restraint of the bullet wall pin on the steel ball is removed, the steel ball moves, the restraint of the steel ball on the firing pin is further removed, the firing pin moves forwards under the push of the compressed firing spring, the effect of mechanical firing is accurately realized through a continuous release process, the whole firing process is not influenced by external force, and the micro-control mechanism is stable and reliable.
When the weapon system needs the mechanism to work, the mechanism is thrown out of the mother bomb, the micro-control mechanism is released, safety can be relieved automatically, the firing mechanism is started to work, and the problem of working time sequence of the weapon system is solved.
Because the tail spherical surface of the bullet wall pin and the female bullet wall are in a point contact fixing mode, the friction force between the tail spherical surface of the bullet wall pin and the female bullet wall is small, and the action reliability of the mechanism is high.
Drawings
FIG. 1 is a schematic structural view of a high safety and high reliability mechanical firing mechanism of the present invention;
FIG. 2 is a schematic view of the body structure shown in FIG. 1;
FIG. 3 is a schematic structural view of the plug shown in FIG. 1;
FIG. 4 is a schematic structural view of the firing spring shown in FIG. 1;
FIG. 5 is a schematic view of the striker pin shown in FIG. 1;
FIG. 6 is a schematic view of the configuration of the shot-wall pin shown in FIG. 1;
FIG. 7 is a schematic view of the construction of the patch shown in FIG. 1;
FIG. 8 is a schematic view of the construction of the shear pin shown in FIG. 1;
FIG. 9 is a schematic view of the release spring shown in FIG. 1
Description of reference numerals: 1. the device comprises a sealant, 2, a body, 3, a plug, 4, a firing spring, 5, a firing pin, 6, a steel ball, 7, a spring wall pin, 8, a cover plate, 9, a safety pin, 10 and a release spring; 2a, a threaded hole, 2b, an assembly hole, 2c, an assembly hole, 2d, an assembly hole, 2e, a threaded hole, 2f, an assembly hole, 2g and an assembly hole; 3a, threads, 3b, wrench grooves; 5a, a positioning groove; 6a, a safety pin hole, 6b and a small diameter; 8a, threads, 8b, wrench grooves; 9a, inner diameter.
Detailed Description
The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Referring to the attached drawings 1-9, the present embodiment provides a high-safety and high-reliability mechanical firing mechanism, which comprises a sealant 1, a body 2, a plug 3, a firing spring 4, a firing pin 5, a steel ball 6, a bullet wall pin 7, a cover plate 8, a safety pin 9, and a release spring 10 (as shown in fig. 1). The firing assembly comprises a firing spring 4 and a firing pin 5, and the firing pin 5 completes the firing action under the action of the firing spring 4; the body 2 is a columnar structure, and a through hole is formed in the body in parallel to the axial direction; the firing spring 4 and the firing pin 5 are coaxially arranged in a through hole of the body 2 and are in clearance fit with the through hole, and a port at one end of the through hole, which is provided with the firing spring 4, is sealed by the plug 3; the micro-control mechanism comprises a steel ball 6, a cover plate 8, a spring wall pin 7, a safety pin 9 and a release spring 10.
The plug is of a T-shaped structure, and the small end of the plug is cylindrical; the big end is a thread and is used for being connected with the body, a wrench groove with the width of 1.5mm and the depth of 1.5mm is arranged at the tail part of the thread, and the big end is connected with the body in a mode of coating epoxy curing glue on the thread.
The firing spring is of an annular structure and is used for pushing the firing pin.
The striker is of an annular structure, the front end of the striker is a triangular tip, the middle part of the striker is provided with a positioning ring groove, and the rear end of the striker is cylindrical.
The steel ball is a standard component and is used for fixing the firing pin.
The cover plate is a circular plate and is arranged in the steel ball hole of the body for sealing.
The bullet wall pin is of a T-shaped structure, the small end of the bullet wall pin is cylindrical, and the bullet wall pin blind hole end of the body is assembled and used for fixing the steel ball; the big end is cylindrical, a blind hole (with threads and used for fixing a safety pin) with the diameter of 2.7mm is arranged at a position 9.3mm away from the tail end of the big end, and the tail end of the big end is spherical.
The safety pin is of a T-shaped structure, the large end of the safety pin is cylindrical, and a wrench groove with the width of 1.5mm and the depth of 1.5mm is formed in the tail part of the safety pin; the small end is a thread and is used for connecting with the body.
The release spring is of an annular structure and is used for pushing the spring wall pin.
The preparation process of the example comprises the following steps: installing a firing pin 5 (with its tip end inward) into an assembly hole 2b of a body 2 (i.e., a through hole in the body 2), aligning a positioning groove 5a of the firing pin 5 with an assembly hole 2c of the body 2 (i.e., a first blind hole in the body 2), installing a steel ball 6 into the assembly hole 2c of the body 2 so that the steel ball 6 is caught on the positioning groove 5a of the firing pin 5, then sleeving an inner diameter 9a of a release spring 10 on a small diameter 6b of a bullet wall pin 7, installing the bullet wall pin 7 (with its spherical surface outward) with the release spring 10 into an assembly hole 2g of the body 2 (i.e., a stepped blind hole in the body 2), aligning a safety pin hole 6a of the bullet wall pin 7 with an assembly hole 2f of the body 2, screwing a thread 8a of the safety pin 9 into a threaded hole 2e of the body 2 ((i.e., a second blind hole in the body 2)), screwing the safety pin 9 into the safety pin 9 through a spanner groove 8b of the safety pin, then the screw thread 3a of the plug 3 is screwed into the screw hole 2a of the body 2, the plug 3 is screwed by a wrench through the wrench groove 3b of the plug 3, the cover plate 8 is arranged in the assembly hole 2d of the body 2, and then the surface of the cover plate 8 and the surface of the plug 3 are coated with sealant.
The action effect is as follows: the firing mechanism adopts a fixing mode that the steel ball is fixed by the bullet wall pin and is clamped in the firing pin positioning groove, and the firing mechanism has higher safety under the impact of high overload and the environmental mechanics in all external directions. The elastic wall pin and the female elastic wall of the mechanism are fixed in a point contact mode, friction force between the elastic wall pin and the female elastic wall is small, and the mechanism is high in action reliability.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (9)
1. A high-safety and high-reliability mechanical firing mechanism comprises a firing assembly, wherein the firing assembly comprises a firing spring and a firing pin, and the firing pin completes firing action under the action of the firing spring; the method is characterized in that: the device also comprises a body, a plug and a micro-control mechanism; the body is of a columnar structure, and a through hole is formed in the body in parallel to the axial direction; the firing spring and the firing pin are coaxially arranged in the through hole of the body and are in clearance fit with the through hole, and the port at one end of the through hole, where the firing spring is arranged, is sealed by a plug;
the micro-control mechanism comprises a steel ball, a cover plate, a spring wall pin, a safety pin and a release spring; the end surface of the body is provided with a first blind hole vertical to the axial direction of the through hole, and the first blind hole is communicated with the through hole; the steel ball is arranged in the first blind hole, and falls into a positioning groove formed in the circumferential surface of the firing pin in a state to be fired; the side wall of the body is provided with a stepped blind hole vertical to the axial direction of the first blind hole, and the small-diameter end of the stepped blind hole is communicated with the first blind hole; the bullet wall pin is of a stepped columnar structure, the small-diameter end of the bullet wall pin is inserted into the small-diameter end of the stepped blind hole, and the side wall of the bullet wall pin tightly presses the steel ball, so that the limit of the firing pin is realized; the release spring is sleeved at the small-diameter end of the elastic wall pin and is positioned between the step surface of the stepped blind hole and the step surface of the elastic wall pin; the end face of the body is provided with a second blind hole perpendicular to the step blind hole, the second blind hole is communicated with the step blind hole, the safety pin is inserted into the second blind hole and penetrates through a hole in the peripheral wall of the large-diameter end of the elastic wall pin, and the elastic wall pin is fixed on the body by the safety pin to lock the micro-control mechanism;
the hole opening of the first blind hole is closed by the cover plate.
2. The high safety, high reliability mechanical firing mechanism of claim 1, wherein: the large-diameter end of the bullet wall pin is a convex spherical surface and is used for reducing friction with a female bullet.
3. The high safety, high reliability mechanical firing mechanism of claim 1, wherein: the elastic wall pin is of a T-shaped structure, and the small end of the elastic wall pin is cylindrical and used for fixing the steel ball; the big end is cylindrical, and a threaded blind hole with the diameter of 2.7mm is arranged at a position 9.3mm away from the tail end of the big end and is used for fixing the safety pin.
4. The high safety, high reliability mechanical firing mechanism of claim 1, wherein: the safety pin is of a T-shaped structure, the large end of the safety pin is cylindrical, and a wrench groove with the width of 1.5mm and the depth of 1.5mm is formed in the tail part of the safety pin; the small end is provided with an external thread for connecting the body and the elastic wall pin.
5. The high safety, high reliability mechanical firing mechanism of claim 1, wherein: the plug is of a T-shaped structure, and the small end of the plug is cylindrical and used for limiting the firing spring; the big end is a thread and is used for connecting with the body; the tail part of the thread is provided with a wrench groove with the width of 1.5mm and the depth of 1.5mm, and the wrench groove is connected with the body in a way of coating epoxy curing glue on the thread.
6. The high safety, high reliability mechanical firing mechanism of claim 1, wherein: the firing spring is an annular compression spring and is used for pushing the firing pin.
7. The high safety, high reliability mechanical firing mechanism of claim 1, wherein: the release spring is an annular compression spring and is used for pushing the elastic wall pin.
8. The high safety, high reliability mechanical firing mechanism of claim 1, wherein: the firing pin is of a columnar structure, the front end of the firing pin is a triangular tip, the circumferential surface of the middle part of the firing pin is provided with a positioning ring groove, and the rear end of the firing pin is cylindrical.
9. The high safety, high reliability mechanical firing mechanism of claim 1, wherein: the cover plate is of a circular plate structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010923714.5A CN112066788A (en) | 2020-09-04 | 2020-09-04 | High-safety and high-reliability mechanical firing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010923714.5A CN112066788A (en) | 2020-09-04 | 2020-09-04 | High-safety and high-reliability mechanical firing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112066788A true CN112066788A (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010923714.5A Pending CN112066788A (en) | 2020-09-04 | 2020-09-04 | High-safety and high-reliability mechanical firing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112066788A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001587A (en) * | 2021-10-27 | 2022-02-01 | 中北大学 | Delay firing device of non-electric explosion transmission system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7721573U1 (en) * | 1977-07-09 | 1978-10-05 | Fa. Diehl, 8500 Nuernberg | REPAIR PULLER |
| US20030024427A1 (en) * | 1998-04-03 | 2003-02-06 | Special Cartridge Company Limited | Safety system for a projectile fuse |
| CN104567536A (en) * | 2015-01-22 | 2015-04-29 | 湖北三江航天红林探控有限公司 | Percussion sparking device |
| CN208280950U (en) * | 2018-04-20 | 2018-12-25 | 西安物华巨能爆破器材有限责任公司 | A kind of perforating oil gas well detonation automatic rebounding percussion lock |
-
2020
- 2020-09-04 CN CN202010923714.5A patent/CN112066788A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7721573U1 (en) * | 1977-07-09 | 1978-10-05 | Fa. Diehl, 8500 Nuernberg | REPAIR PULLER |
| US20030024427A1 (en) * | 1998-04-03 | 2003-02-06 | Special Cartridge Company Limited | Safety system for a projectile fuse |
| CN104567536A (en) * | 2015-01-22 | 2015-04-29 | 湖北三江航天红林探控有限公司 | Percussion sparking device |
| CN208280950U (en) * | 2018-04-20 | 2018-12-25 | 西安物华巨能爆破器材有限责任公司 | A kind of perforating oil gas well detonation automatic rebounding percussion lock |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001587A (en) * | 2021-10-27 | 2022-02-01 | 中北大学 | Delay firing device of non-electric explosion transmission system |
| CN114001587B (en) * | 2021-10-27 | 2023-11-24 | 中北大学 | Delay firing device of non-electric explosion system |
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