CN113494871B - A grenade fuze with switchable delay time - Google Patents

Abstract

The invention discloses a hand grenade fuze with switchable delay time, which comprises a fuze base body and a safety handle rotatably connected to the fuze base body. Select the delay time of the grenade fuze, and ignite the redundant safety mechanism and the delay switching mechanism by firing the firing mechanism; the redundant safety mechanism includes a flameproof component, a shot safety component and a delay safety component, and the flameproof component isolates the delay switching mechanism and the main in the grenade. The medicament is loaded, and the flameproof component is redundantly insured through the release insurance component and the delay insurance component. The present invention is simple in structure, reasonable in design, easy to implement, can be effectively applied in hand grenades, has better matching performance with the overall function of the hand grenade, greatly improves the safety and tactical flexibility of the hand grenade, has good use effect, and is easy to popularize and use .

Description

A grenade fuze with switchable delay time

technical field

The invention belongs to the technical field of hand grenades, and in particular relates to a hand grenade fuze with switchable delay time.

Background technique

As a throwing ammunition weapon carried by an individual soldier, the grenade is different from conventional ammunition weapons. It has no launch environment force and ballistic environment force to use. The combat environment of soldiers is complex, and the fuze insurance can only be released by the operation of soldiers. Therefore, the fuze must ensure the safety of service and use, and at the same time, the convenience of operation and the flexibility of tactics when soldiers use it should be taken into account. The traditional grenade fuze uses a propellant delay tube to delay ignition, but because the reliability rate of the propellant delay tube is not 100%, it will cause early explosion and instantaneous detonation accidents during the training and use of the grenade, which cannot ensure the safety of the soldiers when throwing it.

In addition, the grenade fuze in the prior art adopts a single fixed delay mode, which has poor operational flexibility for targets at different distances during actual use. Especially for hand-throwed anti-riot bombs, when used at close range, the target has a long reaction time, and it is easy to be picked up by the target and thrown back, causing damage to our personnel. Therefore there is an urgent need to develop a grenade fuze with high security and switchable delay time according to the tactical purpose.

Contents of the invention

The technical problem to be solved by the present invention is to provide a switchable hand grenade fuze with a delay time in view of the deficiencies in the above-mentioned prior art. Good matching, greatly improving the safety and tactical flexibility of the grenade, good use effect, easy to promote and use.

In order to solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a hand grenade fuze with switchable delay time, comprising a fuze base body and a safety handle rotatably connected to the fuze base body, the fuze base body is provided with a firing mechanism, redundant Remaining insurance mechanism and delay switching mechanism; the delay time of the grenade fuze is selected by the delay switching mechanism, and the redundant insurance mechanism and the delay switching mechanism are ignited by the firing mechanism; the redundant insurance mechanism includes flameproof components, shot insurance The explosion-proof component and the delay safety component isolate the delay switching mechanism from the main medicament in the grenade, and the flame-proof component performs redundant insurance through the release safety component and the delay safety component.

In the above-mentioned hand grenade fuze with switchable delay time, the firing mechanism includes a flash cap and a blocking bowl arranged under the safety handle, a firing assembly for firing the flash cap, and a firing locking assembly for locking the safety handle; The firing assembly includes a turning plate and a hammer arranged on the turning plate, and the firing locking assembly includes a safety pin, a cotter pin, and a pull ring connected with the safety pin and the cotter pin.

The above-mentioned hand grenade fuze with switchable delay time, the delay switching mechanism includes a delay powder seat located in the fuse base body and a screw sleeve threaded on the fuze base body, and a first delay channel is arranged side by side in the delay time powder seat and the second delay channel, and the output detonator positioned below the first delay channel and the second delay channel; the first delay propellant body is arranged in the first delay channel, and the second delay propellant is arranged in the second delay channel body, the screw sleeve is provided with a rotatable set pin, one end of the set pin is located above the second delay channel, and is provided with an ignition hole that can communicate with the second delay channel, the set pin The other end is provided with a mode selection switch, and the mode selection switch is provided with a lock pin rod, and a lock pin spring is sleeved on the lock pin rod.

In the above-mentioned hand grenade fuze with switchable delay time, the fixing pin is provided with a stopper perpendicular to the axis of the fixing pin.

In the aforementioned grenade fuze with switchable delay time, the delay time of the first delay powder body is 3.5s, and the delay time of the second delay powder body is 1.8s-2s.

In the above-mentioned hand grenade fuze with switchable delay time, the flameproof assembly includes a baffle plate, a turntable and a limit steel ball are embedded in the baffle plate, and a first explosion transmission channel and a limit stop are arranged on the turntable. Holes, as well as torsion springs that provide rotational power for the turntable and recesses for matching with limit steel balls, the center axis of the baffle disk is provided with a second explosion transmission channel under the turntable.

In the aforementioned switchable hand grenade fuze with delay time, the turntable is connected to the stopper through a rotating shaft, and the torsion spring is installed on the rotating shaft.

In the aforementioned switchable hand grenade fuze with delay time, the release safety component includes a guide tube, and a safety rod inserted into a limit hole and a release spring sleeved on the safety rod are arranged in the guide pipe.

In the above-mentioned hand grenade fuze with switchable delay time, the delay safety assembly includes a pin puller tube, and a pin puller rod for blocking the limit steel ball and a pin puller sleeved on the pin puller rod are arranged in the pin puller tube spring, and the pin-pulling powder located above the pin-pulling lever.

Compared with the prior art, the present invention has the following advantages:

1. Based on system engineering and modular design ideas, the present invention has carried out overall design to the grenade fuze, which has simple structure, reasonable design and convenient realization.

2. The present invention designs a redundant insurance mechanism of the release insurance component and the delay insurance component, which improves the safety of the grenade in use.

3. The present invention designs a delay switching mechanism, which can perform delay time switching for targets at different distances, greatly improving tactical flexibility.

4. The present invention can be effectively applied to the hand grenade, has better compatibility with the overall function of the hand grenade, is safe and reliable, has good use effect, and is easy to popularize and use.

To sum up, the present invention is simple in structure, reasonable in design, easy to implement, can be effectively applied in hand grenades, and has good compatibility with the overall function of the hand grenade, greatly improving the safety and tactical flexibility of the hand grenade, and the use effect Well, it is easy to promote and use.

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a schematic structural view of the firing mechanism of the present invention;

Fig. 3 is a structural schematic diagram of the delayed switching mechanism of the present invention;

Fig. 4 is a sectional view of the delayed switching mechanism of the present invention;

Fig. 5 is the structural representation of redundant insurance mechanism of the present invention;

Fig. 6 is a sectional view of the redundant insurance mechanism of the present invention;

Fig. 7 is a structural schematic diagram of the flameproof assembly of the present invention.

Explanation of reference signs:

1—fuze base; 2—safety handle; 3—firing mechanism;

3-1—flame cap; 3-2—blocking bowl; 3-3—turnover plate;

3-4—hammer; 3-5—safety pin; 3-6—cotter pin;

3-7—pull ring; 4—delay switching mechanism; 4-1—delay gunpowder seat;

4-2—screw sleeve; 4-3—the first extension channel; 4-4—the second extension channel;

4-5—output detonator; 4-6—the first delayed powder body; 4-7—the second delayed powder body;

4-8—fixing pin; 4-9—ignition hole; 4-10—mode selection switch;

4-11—lock pin lever; 4-12—lock pin spring; 4-13—stop pin;

5—flameproof assembly; 5-1—baffle plate; 5-2—turntable;

5-3—limiting steel ball; 5-4—the first explosion transmission channel; 5-5—limiting hole;

5-6—torsion spring; 5-7—recess; 5-8—second explosion transmission channel;

5-9—rotating shaft; 6—hand safety component; 6-1—guide tube;

6-2—bumper lever; 6-3—release spring; 7—delay insurance component;

7-1—Pin-out tube; 7-2—Pin-out lever; 7-3—Pin-out spring;

7-4—Pull out the gunpowder.

Detailed ways

As shown in Figures 1 to 7, the delay time switchable grenade fuze of the present invention includes a fuze base body 1 and a safety handle 2 rotatably connected to the fuze base body 1, and the fuze base body 1 is provided with a firing mechanism 3, Redundant insurance mechanism and delay switching mechanism 4; The delay time of the grenade fuze is selected by the delay switching mechanism 4, and the redundant insurance mechanism and the delay switching mechanism 4 are ignited by the percussion firing mechanism 3; Explosion assembly 5, shot safety assembly 6 and delay safety assembly 7, said explosion-proof assembly 5 isolates the delay switching mechanism 4 and the main medicament in the grenade, and said explosion-proof assembly 5 passes through the release safety assembly 6 and the delay safety assembly 7 Carry out redundancy insurance.

During specific implementation, before the grenade is thrown, according to the task requirements, the long delay mode or the short delay mode is selected through the delay switching mechanism 4, and the delay switching mechanism 4 is respectively aimed at the two combat modes of long delay and short delay. The delayed ignition time is short, which can meet the needs of rapid intrusion sound and light suppression operations; when the long delay mode is selected, the delay time is longer, which can meet the requirements for dispersing rioting groups at a long distance.

In this embodiment, as shown in FIG. 2 , the firing mechanism 3 includes a flash cap 3-1 and a blocking bowl 3-2 arranged under the safety handle 2, and a firing assembly and a firing assembly for firing the flash cap 3-1. A firing lock assembly for locking the safety handle 2; the firing assembly includes a flip 3-3 and a hammer 3-4 arranged on the flip 3-3, and the firing lock assembly includes a safety pin 3-5 and an opening Pin 3-6, and the draw ring 3-7 that is all connected with safety pin 3-5 and cotter pin 3-6.

During specific implementation, under the state of duty, the safety handle 2 is locked by the safety pin 3-5, and the safety handle 2 presses down the flap 3-3 and the hammer 3-4; when the pull ring 3-7 pulls the safety pin 3-5 When pulling out and throwing, the safety handle 2 is separated from the projectile body, and the restriction to the flap 3-3 and the hammer 3-4 is released, and the hammer 3-4 flips and hits the flash cap 3-1, and the flash cap 3-1 Fire and ignite the redundant safety mechanism and the delay switching mechanism 4 downward.

In this embodiment, as shown in Figures 3 to 4, the delay switching mechanism 4 includes a delay powder seat 4-1 located in the fuze base 1 and a screw sleeve 4-2 threaded on the fuze base 1. A first delay channel 4-3 and a second delay channel 4-4 are arranged side by side in the delay powder seat 4-1, and an output detonator 4-5 located below the first delay channel 4-3 and the second delay channel 4-4 ; The first delay channel 4-3 is provided with a first delay propellant body 4-6, the second delay channel 4-4 is provided with a second delay propellant body 4-7, and the screw sleeve 4-2 A rotatable set pin 4-8 is arranged inside, one end of the set pin 4-8 is located above the second delay channel 4-4, and an ignition hole capable of communicating with the second delay channel 4-4 is provided 4-9, the other end of the fixing pin 4-8 is provided with a mode selection switch 4-10, and the mode selection switch 4-10 is provided with a lock pin lever 4-11, and the lock pin lever 4-11 Last cover is provided with lock pin spring 4-12.

In this embodiment, the fixing pin 4-8 is provided with a stop pin 4-13 perpendicular to the axial direction of the fixing pin 4-8.

In this embodiment, the delay time of the first delayed powder body 4-6 is 3.5s, and the delay time of the second delayed powder body 4-7 is 1.8s˜2s.

During specific implementation, the set pin 4-8 is limited by the stop pin 4-13, connected with the fuze base 1 through the screw sleeve 4-2, and controls the on-off state of the second delay channel 4-4 through the ignition hole 4-9, To realize the setting of the delay time, the default state of the mode selection switch is the long delay (L) mode. At this time, the ignition hole 4-9 of the setting pin 4-8 and the second delay channel 4-4 are in a 90° dislocation state, and the flash cap 3 The point flame output by -1 can only be input from the first delay channel 4-3, and the second delay channel 4-4 is blocked. At this time, the first delay powder body 4-6 of 3.5s is ignited, and the fuze is from ignition to The time to detonate the output detonator 4-5 is 3.5s; when the set pin 4-8 is turned 90°, it is the short delay (S) mode, and now the ignition hole 4-9 on the set pin 4-8 is connected to the second delay The channel 4-4 is connected, and the ignition flame output by the cap 3-1 is simultaneously from the first delay channel 4-3 and the second delay channel 4-4 to the first delay gunpowder body 4-6 of 3.5s and 1.8s～2s The second delayed propellant body 4-7 is ignited, and the output detonator 4-5 is detonated after 1.8s-2s.

In this embodiment, as shown in Figures 5 to 7, the flameproof assembly 5 includes a baffle plate 5-1, and a turntable 5-2 and a limit steel ball 5-3 are embedded in the baffle plate 5-1. , the turntable 5-2 is provided with a first explosion transmission channel 5-4 and a limit hole 5-5, as well as a torsion spring 5-6 that provides rotational power for the turntable 5-2 and is used to connect with the limit steel ball 5 - 3 matching recesses 5-7, the central axis of the baffle plate 5-1 is provided with a second explosion transmission channel 5-8 below the turntable 5-2.

In this embodiment, the turntable 5-2 is rotatably connected to the stopper 5-1 through a rotating shaft 5-9, and the torsion spring 5-6 is installed on the rotating shaft 5-9.

In this embodiment, as shown in FIG. 6, the hand safety assembly 6 includes a guide tube 6-1, and a safety rod 6-2 and a sleeve inserted into the limit hole 5-5 are arranged in the guide tube 6-1. Be located at the safety release spring 6-3 on the bumper 6-2.

In this embodiment, as shown in FIG. 6, the delay insurance assembly 7 includes a pin pulling tube 7-1, and a pin pulling rod 7 for blocking the limit steel ball 5-3 is arranged inside the pin pulling tube 7-1. -2 and the pin-pulling spring 7-3 that is sleeved on the pin-pulling lever 7-2, and the pin-pulling gunpowder 7-4 that is positioned at the pin-pulling lever 7-2 top.

During specific implementation, the explosion-proof assembly 5 is locked and restricted to rotate by the release safety assembly 6 and the delay safety assembly 7 under the duty state, isolating the main medicament in the grenade, and ensuring the safety in service processing. 7 After the safety is released, the turntable 5-2 rotates under the effect of the torsion spring 5-6, so that the first explosion transmission channel 5-4 and the second explosion transmission channel 5-8 are connected, so that the fuze is in the ready state; 6 In the duty state, the safety handle 2 is pressed by the blocking bowl 3-2; when the grenade is thrown, the safety handle 2 is bounced off, and at the same time the safety lever 6-2 moves upward under the drive of the release spring 6-3, Unlock the turntable 5-2; in order to prevent the hand grenade from popping out and exploding early, a delay insurance component 7 is provided, and the pin lever 7-2 is pulled out to limit the displacement of the limit steel ball 5-3 in the duty state, and the limit steel ball 5-3 restricts the rotation of the turntable 5-2 so that it is in an explosion-proof state; when the grenade is thrown, the pin-pull gunpowder 7-4 on the upper end of the pin-pull tube 7-1 is ignited by the fire cap 3-1, achieving about 0.5 s extension, after the extension is completed, the pin pulling lever 7-2 moves upward under the effect of the pin pulling spring 7-3, and the restriction to the limit steel ball 5-3 is removed, and then the locking of the rotating disk 5-2 is removed, and the rotating disk 5 -2 Under the action of the torsion spring 5-6, the first explosion transmission channel 5-4 and the second explosion transmission channel 5-8 are communicated.

When the present invention is in use, hold the projectile and the safety handle 2 firmly, select the long delay mode or the short delay mode through the mode selection switch 4-10 according to the tactical purpose, rotate the pull ring 3-7 counterclockwise and draw it out, and pull out the safety pin 3-5 and take out the cotter pin 3-6; after throwing, the safety handle 2 is separated from the projectile body, and the restriction of the safety handle 2 on the flap 3-3 and the hammer 3-4 is released, and the hammer 3-4 hits the flash cap 3-1, the fire cap 3-1 ignites and ignites downwards the gunpowder in the redundant safety mechanism and the delay switch mechanism 4, releases the safety component 6 to unlock the flameproof component 5, and the delay safety component 7 is delayed for about 0.5s Afterwards, the locking of the explosion-proof assembly 5 is also released, and now the rotating disk 5-2 in the explosion-proof assembly 5 rotates under the effect of the torsion spring 5-6, so that the first explosion transmission channel 5-4 and the second explosion transmission channel 5 -8 is connected, so that the fuze is in the ready state. When the mode selection switch 4-10 selects the long delay mode, the first delay powder body 4-6 of the flash cap 3-1 ignites for 3.5s and detonates the output detonator 4-5, and then detonates the main medicament in the grenade; when the mode selection When the switch 4-10 selects the short delay mode, the flash cap ignites the first delay powder body 4-6 for 3.5s and the second delay powder body 4-7 for 1.8s~2s at the same time, and detonates the output after a delay of 1.8s~2s Detonator 4-5, and then detonate the main dress medicine in the grenade.

The above are only preferred embodiments of the present invention, and do not limit the present invention in any way. All simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical essence of the present invention still belong to the technical aspects of the present invention. within the scope of protection of the scheme.

Claims (8)

1. A grenade fuze with switchable delay time, comprising a fuze base (1) and a safety handle (2) rotatably connected to the fuze base (1), characterized in that: the fuze base (1) is provided with a firing Ignition mechanism (3), redundant safety mechanism and delay switching mechanism (4); the delay time of the grenade fuze is selected through the delay switching mechanism (4), and the redundant safety mechanism and delay are ignited through the percussion firing mechanism (3). Switching mechanism (4); the redundant insurance mechanism includes a flameproof assembly (5), a shot insurance assembly (6) and a delay insurance assembly (7), and the flameproof assembly (5) isolates the delay switching mechanism (4) and The main agent in the grenade, and the flameproof assembly (5) is redundantly insured through the release insurance assembly (6) and the delay insurance assembly (7); The delay switching mechanism (4) includes a delay powder seat (4-1) located in the fuze base (1) and a screw sleeve (4-2) threaded on the fuze base (1), the delay powder seat ( 4-1) The first delay channel (4-3) and the second delay channel (4-4) are arranged side by side, and are located below the first delay channel (4-3) and the second delay channel (4-4) output detonator (4-5); the first delay channel (4-3) is provided with a first delay propellant body (4-6), and the second delay channel (4-4) is provided with a second Delay powder body (4-7), the screw sleeve (4-2) is provided with a rotatable set pin (4-8), one end of the set pin (4-8) is located in the second delay channel (4-4), and is provided with an ignition hole (4-9) that can communicate with the second delay channel (4-4), and the other end of the fixing pin (4-8) is provided with a mode selection switch (4-10), the mode selection switch (4-10) is provided with a lock pin lever (4-11), and the lock pin lever (4-11) is provided with a lock pin spring (4-12) . 2. A hand grenade fuze with switchable delay time according to claim 1, characterized in that: the percussion firing mechanism (3) includes a flash cap (3-1) and a stopper arranged under the safety handle (2). Yu (3-2), as well as a firing assembly for firing the cap (3-1) and a firing locking assembly for locking the safety handle (2); the firing assembly includes a flap (3-3) and a The hammer (3-4) on the turnover plate (3-3), the firing locking assembly includes a safety pin (3-5) and a cotter pin (3-6), and both are connected with the safety pin (3-5) and Cotter pin (3-6) attached pull ring (3-7). 3. A hand grenade fuze with switchable delay time according to claim 1, characterized in that: the fixing pin (4-8) is provided with a stop perpendicular to the axial direction of the fixing pin (4-8). pins (4-13). 4. A hand grenade fuze with switchable delay time according to claim 1, characterized in that: the delay time of the first delay powder body (4-6) is 3.5s, and the delay time of the second delay powder body ( 4-7) The delay time is 1.8s ~ 2s. 5. A hand grenade fuze switchable with delay time according to claim 1, characterized in that: the flameproof assembly (5) includes a baffle plate (5-1), on which the baffle plate (5-1) A turntable (5-2) and a limit steel ball (5-3) are embedded, and the turntable (5-2) is provided with a first explosion transmission channel (5-4) and a limit hole (5-5) , as well as the torsion spring (5-6) that provides rotational power for the turntable (5-2) and the recess (5-7) for matching with the limit steel ball (5-3), the stopper (5- 1) The central axis is provided with a second explosion transmission channel (5-8) located below the turntable (5-2). 6. A hand grenade fuze with switchable delay time according to claim 5, characterized in that: the turntable (5-2) is rotatably connected to the stopper (5-1) through a rotating shaft (5-9), The torsion spring (5-6) is installed on the rotating shaft (5-9). 7. The hand grenade fuze switchable with delay time according to claim 5, characterized in that: the release safety component (6) includes a guide tube (6-1), and inside the guide tube (6-1) A safety rod (6-2) inserted into the limit hole (5-5) and a release spring (6-3) sheathed on the safety rod (6-2) are provided. 8. A hand grenade fuze with switchable delay time according to claim 5, characterized in that: the delay safety assembly (7) includes a pin-out tube (7-1), and the pin-out tube (7-1 ) is provided with a pin puller (7-2) for blocking the limit steel ball (5-3) and a pin puller (7-3) sleeved on the pin puller (7-2), and a pin puller (7-3) located on the puller Pull the pin powder (7-4) above the pin rod (7-2).