CN109331374B - Elastic rod type fire-fighting rocket bomb security device - Google Patents
Elastic rod type fire-fighting rocket bomb security device Download PDFInfo
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- CN109331374B CN109331374B CN201810942580.4A CN201810942580A CN109331374B CN 109331374 B CN109331374 B CN 109331374B CN 201810942580 A CN201810942580 A CN 201810942580A CN 109331374 B CN109331374 B CN 109331374B
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- safety
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- pin
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C19/00—Hand fire-extinguishers in which the extinguishing substance is expelled by an explosion; Exploding containers thrown into the fire
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
- A62C3/0214—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires for buildings or installations in fire storms
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
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- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
The invention discloses a safety device for a rod type fire-fighting rocket bomb, which comprises a safety relay component and a safety component, wherein the safety relay component is arranged on the inner wall of a bomb compartment and consists of a base, a slide chamber pin, a safety relay rod, an O-shaped sealing ring, a sealing gasket, a spring and a stop block; the safety component consists of a safety rod and a spring. The safety relay component and the safety component are mutually independent in structure, and the safety relay component is a relay component and a limiting component of the safety component. The release of the safety is associated with the cartridge-out environment of the rocket projectile, the rocket projectile is not launched, the sliding block of the safety mechanism is locked by the safety rod, and the safety mechanism is in a safety state. After the rocket projectile launches the launching tube, the smoothbore pin loses the limit of the launching tube, the safety mechanism is switched, the sliding block of the safety mechanism loses the locking of the safety rod, and the safety mechanism is in a safety release state. The invention has the characteristics of simple structure, recoverable state, high action reliability, strong environmental adaptability and low cost.
Description
Technical Field
The invention belongs to the technical field of fire-fighting rocket projectile security, and particularly relates to a bullet rod type fire-fighting rocket projectile security device which is particularly suitable for fire-fighting rocket projectile security.
Background
As a product of the concept of deepening the strategy of the convergence development of the military and the civil, the fire-fighting rocket bomb for the high-rise fire-fighting has the advantages that common fire-fighting equipment can not be replaced. Fire control is a high-risk industry, and the condition that fire extinguishing agents cannot be delivered to key fire extinguishing points due to the short range of fire extinguishers generally occurs. The fire-fighting rocket projectile has the advantages of long shooting range and great power. Because the rocket projectile has a power device, some rocket projectiles even have an accurate guidance function, so the fire-fighting rocket projectile has a more complex structure than a common fire extinguisher, has higher price and cost, and is not beneficial to mass production. Low cost and high reliability are issues that must be considered in the design of fire-fighting rocket projectiles.
The safety protection device for the fire-fighting rocket projectile has the following functions: ensuring that the security device does not act in advance in the service processing process and in the preset time after transmission; two-stage insurance is timely released according to the environmental information of the rocket projectile launching barrel and the flight process. After the fire extinguishing target area is reached, the safety device starts to fire by receiving target distance information or overload information when the safety device hits the target, reliably ignites the medicine in the emitter, and then throws out the fire extinguishing agent. The security mechanism is a security mechanism of a security device, and the security mechanism in the current mainstream scheme mainly comprises an explosion-proof part and two levels of mutually independent security parts. The explosion-proof part generally has the structural forms of a sliding block, an explosion-proof rod, an isolation rotor and the like. The first-stage safety part and the second-stage safety part mainly have the forms of an electric pin pushing device, an electric pin pulling device, an electromagnetic safety part, an electric heating safety part, an inertia safety part and the like. The main stream insurance spare structure is complicated, and the reliability is lower, and the cost is higher, for disposable insurance spare, the state can not resume after the effect.
Disclosure of Invention
In order to solve the technical problems, the invention provides a safety protection device for a rod type fire-fighting rocket projectile, which is high in reliability, simple in structure, low in cost, capable of recovering to an original state after safety is relieved, capable of being repeatedly disassembled and assembled, and capable of expanding the application field of safety parts.
In order to realize the technical purpose of the invention, the invention adopts the following technical scheme:
a kind of bullet rod type fire-fighting rocket bomb security mechanism, including insurance relay part and insurance part;
the safety relay component comprises a base, a through hole is axially formed in the center of the base, a spring limiting structure is arranged at the bottom of the through hole, a slide chamber pin, a safety connecting rod with steps and a stop block with steps are sequentially placed in the through hole, a first spring is sleeved at the middle part of the safety connecting rod, one end of the first spring is limited by the steps of the safety connecting rod, and the other end of the first spring is limited and abutted against the spring limiting structure at the bottom of the through hole;
the safety component comprises a safety rod with steps and a second spring, one end of the safety rod is connected with the stop block, and the other end of the safety rod is inserted into the locking piece; the middle part of the safety rod is sleeved with a second spring, one end of the second spring is limited by the step of the safety rod, and the other end of the second spring is limited by the bottom surface of the mounting hole of the safety rod on the body;
when the rocket projectile is not launched, the smoothbore pin is limited by the inner wall of the launching tube, the smoothbore pin, the safety connecting rod and the safety rod are all located at original positions, the locking piece is locked by the safety rod, and the safety device is located at a safety state;
after the rocket projectile is launched, the sliding chamber pin loses limiting, the sliding chamber pin flies out under the action of the first spring and the second spring, the safety connecting rod and the safety rod are both bounced, the locking piece loses the locking of the safety rod, and the safety device is in a safety release state.
Further, the end of the safety relay lever, which faces the slide chamber pin, is in a conical shape.
Furthermore, the slide-down piston further comprises an O-shaped sealing ring sleeved between the slide-down pin and the inner wall of the base.
The beneficial technical effects of the design of the invention are as follows:
the safety release of the safety piece of the elastic rod type safety mechanism is related to the cartridge-out environment of the rocket projectile, the rocket projectile is not launched, the sliding block of the safety mechanism is locked by the safety rod and the secondary safety piece, and the safety mechanism is in a safety state. After the rocket projectile launches the launching tube, the smoothbore pin loses the limit of the launching tube, the elastic rod type safety piece is switched, after the secondary safety piece is released according to the projectile-up requirement, the explosion-proof piece sliding block loses the locking of the safety rod and the secondary safety piece, the sliding block moves to a safety release position under the action of the third spring, and the safety mechanism is in a safety release state. When the security mechanism is in a security state, the smoothbore pin and the base are sealed; when the security mechanism is in a security release state, the security connecting rod and the base are sealed. Finally, the mechanism is sealed relative to the external environment of the elastic wall in the insurance state and the insurance release state, and the environmental adaptability of the mechanism is improved.
The elastic rod type safety piece is used for ensuring that the safety mechanism is in a safety release state. The safety relay rod does not protrude out of the excircle of the rocket projectile, and the pneumatic appearance of the rocket projectile is not affected.
The state of the elastic rod type safety element can be restored. The sliding bore pin flies out, the sliding block is pressed into the sliding bore pin again from the sliding bore pin flying hole under the condition that the secondary safety part is locked at the original position, and the safety connecting rod and the safety rod can still return to the original position.
The safety relay component and the safety component are mutually independent in structure, and the safety relay component is a relay component and a limiting component of the safety component. The safety relay component and the safety component are structurally independent, so that the problem that the structures of all moving parts are blocked due to the accumulation of coaxiality errors is solved. The mechanism has the characteristics of simple structure, convenience in installation and easiness in operation.
Preferably, the safety relay rod adopts a conical surface design, so that the safety relay rod is not contacted with the O-shaped sealing ring in the movement process, the safety relay rod is contacted with the O-shaped sealing ring after the safety relay rod moves in place, the movement process of the safety relay rod is not influenced by the friction force of the O-shaped sealing ring, and the safety relay rod has the characteristic of high movement reliability.
Before and after the rocket projectile is launched, the mechanism has good sealing performance relative to the outside of the projectile body. When the rocket projectile is not launched and the security mechanism is in a security state, the smoothbore pin and the base are sealed; after the rocket projectile is launched out of the barrel, when the security mechanism is in a security release state, the security force rod and the base are sealed.
In general, the invention has the characteristics of simple structure, recoverable state, high action reliability, strong environmental adaptability and low cost.
Drawings
FIG. 1 is a schematic structural view of a safety state of a security mechanism applied to a fire-fighting rocket projectile according to the present invention;
FIG. 2 is a schematic view of a state of the security mechanism applied to the fire-fighting rocket projectile according to the present invention;
FIG. 3 is an exploded view of the safety relay component of the present invention;
FIG. 4 is a schematic view of the safety state structure of the safety relay assembly of the present invention;
fig. 5 is a schematic view of the state of the safety relay member according to the present invention.
In all the figures, the same reference numerals denote the same features, in particular:
1. the novel rocket launcher comprises a slide chamber pin, 2 parts of a gasket, 3 parts of a base, 4 parts of an O-shaped sealing ring, 5 parts of a first spring, 6 parts of a safety connecting rod, 7 parts of a stop block, 8 parts of a safety rod, 9 parts of a second spring, 10 parts of a body, 11 parts of a third spring, 12 parts of a sliding block, 13 parts of a launcher, 14 parts of a rocket launcher shell and 15 parts of a secondary safety part.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following design of the present invention is further described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the design of the present invention and are not intended to limit the design of the present invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Fig. 1 is a schematic structural view of the safety state of a security mechanism applied to a fire-fighting rocket projectile. The invention is composed of a safety relay component and a safety component. The safety relay component and the safety component are mutually independent from the contact position of the stop block and the safety lever, and the safety relay component and the safety mechanism main body are respectively and independently arranged in the cartridge chamber and are series connection type safety motion mechanisms.
As shown in fig. 1 and 3, the safety relay component comprises a base 3, a through hole is axially formed in the center of the base 3, a spring limiting structure is arranged at the bottom of the through hole, a slide chamber pin 1, a safety relay rod 6 with steps and a stop block 7 with steps are sequentially placed in the through hole, a first spring 5 is sleeved at the middle part of the safety relay rod 6, one end of the first spring 5 is limited by the steps of the safety relay rod 6, and the other end of the first spring 5 is limited and abutted against the limiting structure at the bottom of the through hole;
as shown in fig. 1, the safety member includes a safety lever 8 with a step and a second spring 9. One end of the safety rod 8 is connected with the stop block 7, and the other end of the safety rod 8 is inserted into the sliding block 12; the middle part of the safety rod 8 is sleeved with a second spring 9, one end of the second spring 9 is limited by the step of the safety rod 8, and the other end of the second spring 9 is limited by the bottom surface of the mounting hole of the safety rod 8 on the body 10.
With reference to fig. 1 and 2, the safety relay component and the safety component are independently installed and are not limited by the installation sequence, and the slide chamber pin is not installed when the safety relay component is installed and is installed when the rocket is ejected into the barrel. The safety component must be restricted at the home position with the help of the frock earlier, takes off the frock after two parts all assemble the completion. According to the installation mode, the stop block is in contact with the end face of the safety rod, only friction force is generated on the contact face, and bending moment is not generated between the stop block and the safety rod, so that the installation coaxiality requirement on the two parts is extremely low, the phenomenon that the relay safety rod and the safety rod are clamped due to poor installation coaxiality does not exist, and the operability and the movement reliability of the mechanism during installation are greatly improved.
After the rocket projectile launches out the launching tube 13, the smoothbore pin 1 of the security mechanism loses the limit, under the action of the internal energy storage springs 5 and 9, the smoothbore pin 1 flies out, the safety connecting rod 6 and the safety rod 8 both bounce for a certain distance, the sliding block 12 of the security mechanism loses the locking of the safety rod 8, and the security mechanism is in a safety release state, as shown in fig. 2.
In the original state of the security mechanism, the slide bore pin 1 is limited to the position shown in fig. 4 by the launching tube 13, and the slide bore pin 1 is sealed with the inner wall of the base 3 through the O-shaped sealing ring 4. After the limiting function of the launching tube 13 disappears, the smoothbore pin 1 flies out, the safety connecting rod 6 bounces under the action of the first spring 5, at the moment, because the end of the safety connecting rod 6 adopts a conical design, the O-shaped sealing ring 4 and the safety connecting rod 6 do not generate friction force, and the movement reliability of the safety connecting rod 6 is guaranteed. After the safety connecting rod 6 moves to a proper position, the O-ring 4 contacts with the cylindrical surface of the safety connecting rod 6, and at this time, the sealing design between the safety connecting rod 6 and the inner wall of the base 3 is realized again through the O-ring 4, as shown in fig. 5.
The safety connecting rod 6 is designed in a conical shape, so that the safety connecting rod 6 is not in contact with the O-shaped sealing ring 4 in the movement process, after the safety connecting rod 6 moves in place, the safety connecting rod 6 is in contact with the O-shaped sealing ring 4, and the movement process of the safety connecting rod 6 is not influenced by the friction force of the O-shaped sealing ring 4.
The sliding block 12 can be used as an explosion-proof part or can be in structural forms such as an explosion-proof rod and an isolation rotor. The elastic rod type safety piece is used as a primary safety piece locked by an explosion-proof piece of the security mechanism, and the secondary safety piece 15 can be an electric pin puller, an electric pin pusher and the like, which jointly form the security mechanism of the security device.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention, and such modifications and adaptations are intended to be within the scope of the invention.
Claims (3)
1. A safety device of a rod type fire-fighting rocket bomb is characterized by comprising a safety relay component and a safety component;
the safety relay component comprises a base (3), a through hole is axially formed in the center of the base (3), a spring limiting structure is arranged at the bottom of the through hole, a slide chamber pin (1), a safety relay rod (6) with steps and a stop block (7) with steps are sequentially placed in the through hole, a first spring (5) is sleeved at the middle part of the safety relay rod (6), one end of the first spring (5) is limited by the steps of the safety relay rod (6), and the other end of the first spring (5) is limited and abutted against the spring limiting structure at the bottom of the through hole;
the safety component comprises a safety rod (8) with steps and a second spring (9), one end of the safety rod (8) is connected with the stop block (7), and the other end of the safety rod (8) is inserted into the locking piece; a second spring (9) is sleeved at the middle part of the safety rod (8), one end of the second spring (9) is limited by a step of the safety rod (8), and the other end of the second spring is limited by the bottom surface of a mounting hole of the safety rod (8) on the body (10);
when the rocket projectile is not launched, the smoothbore pin (1) is limited by the inner wall of the launching tube, the smoothbore pin (1), the safety connecting rod (6) and the safety rod (8) are all located at original positions, the locking piece is locked by the safety rod (8), and the safety device is in a safety state;
after the rocket projectile is launched, the sliding bore pin (1) loses the limit, the sliding bore pin (1) flies out under the action of the first spring (5) and the second spring (9), the safety connecting rod (6) and the safety rod (8) are both bounced, the locking piece loses the locking of the safety rod (8), and the safety device is in a safety release state.
2. A safety device for a rod-loaded fire-fighting rocket projectile according to claim 1, wherein the end of the safety interface rod (6) facing the smoothbore pin (1) is of conical shape.
3. A safety device for a rod-loaded fire-fighting rocket projectile according to claim 1, further comprising an O-ring (4) fitted between said slide pin (1) and the inner wall of the base (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810942580.4A CN109331374B (en) | 2018-08-17 | 2018-08-17 | Elastic rod type fire-fighting rocket bomb security device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810942580.4A CN109331374B (en) | 2018-08-17 | 2018-08-17 | Elastic rod type fire-fighting rocket bomb security device |
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| Publication Number | Publication Date |
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| CN109331374A CN109331374A (en) | 2019-02-15 |
| CN109331374B true CN109331374B (en) | 2020-07-10 |
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| CN201810942580.4A Active CN109331374B (en) | 2018-08-17 | 2018-08-17 | Elastic rod type fire-fighting rocket bomb security device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110764402B (en) * | 2019-10-11 | 2023-03-07 | 北京航天长征飞行器研究所 | Reentry vehicle safety control method based on time window |
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