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423 results about "Firing pin" patented technology

A firing pin or striker is part of the firing mechanism used in a firearm or explosive device. Firing pins may take many forms, though the types used in fuzes for single-use devices (such as landmines, artillery shells, cluster munitions and grenades) generally have a sharpened point. In contrast, firing pins used in firearms usually have a small, rounded portion designed to strike the primer of a cartridge, detonating the priming compound, which then ignites the propellant (inside) or fires the detonator and booster.

Nail gun

The utility model discloses a nail gun which comprises a power assembly which at least comprises a motor and a transmission assembly. The firing assembly at least comprises an air cylinder assembly and a firing pin assembly; the cylinder assembly at least comprises an inner cylinder and an outer cylinder which are communicated with each other; the firing pin assembly is at least partially located in the inner air cylinder. The shell assembly at least comprises a first shell for a user to hold and a second shell for accommodating at least part of the percussion assembly; the power assembly is located in the first shell. The diameter of the motor is smaller than 38 mm.
Owner:NANJING CHERVON IND

Nail gun

The utility model discloses a nail gun which comprises a main machine, a power assembly, a driving assembly and a driving assembly. The firing assembly at least comprises an air cylinder assembly and a firing pin assembly; the cylinder assembly at least comprises an inner cylinder and an outer cylinder which are communicated with each other; the firing pin assembly is at least partially located in the inner air cylinder. The shell assembly at least comprises a first shell for a user to hold and a second shell for accommodating at least part of the percussion assembly; the nail gun further comprises a cartridge clip assembly which at least comprises a cartridge clip capable of storing nails. In the vertical direction, the distance D3 between the lowest end of a holding part of the first shell for a user to hold and the uppermost end of the foremost end of the joint of the cartridge holder assembly and the host is smaller than or equal to 60 mm.
Owner:NANJING CHERVON IND

Delay explosion propagation device for multi-stage perforation detonation

The invention discloses a delay explosion propagation device for multi-stage perforation detonation, relates to the technical field of multi-stage perforation, and aims at solving the technical problem that an existing delay explosion propagation device is insufficient in safety isolation in the delay waiting stage. The delay explosion propagation device comprises a gun body, a pressure sensor, a perforating bullet system, a detonation system and an isolation mechanism; the detonating system comprises an inner barrel connected into the gun body in a sleeved mode, a firing pin arranged in the inner barrel in a sleeved mode and provided with hydraulic drive, and a fire cap installed at the bottom of the inner barrel. Through gathering and unfolding of the combination blocks in the isolation mechanism, reliable separation and connection of the impact path of the firing pin are achieved, the firing pin can directly impact the fire cap to complete detonation only when the combination blocks are unfolded, the impact path is separated and cannot be detonated when the combination blocks are gathered, and therefore an active controllable mechanical safety isolation means is provided; the technical problems that an existing delay explosion propagation device is detonated in advance due to the fact that a firing pin accidentally impacts a fire cap due to false triggering or pressure fluctuation in the delay waiting period, and safety is insufficient are solved.
Owner:DAQING JINXIANGYU SCI & TECH CO LTD

Fastener driver

The application discloses a fastener driver, comprising: a striking assembly comprising a striker configured to strike a fastener; a magazine accommodating the fastener; the fastener driver is characterized in that the fastener driver further comprises a trigger assembly which is operated by a user so as to be switched between a first state in which the firing pin is allowed to strike the fastener and a second state in which the firing pin is forbidden to strike the fastener; at least part of the lifting assembly is movably arranged in the magazine so as to drive the fastener to move in the magazine; the anti-idle-strike assembly has an anti-idle-strike state, the anti-idle-strike assembly comprises a stop piece, and in the anti-idle-strike state, the stop piece prohibits the trigger assembly from being switched to the first state; and when the triggering assembly prevents the stopping piece from performing the first movement, the lifting assembly drives the stopping piece to perform the second movement. The fastener driver is convenient and safe to use.
Owner:NANJING CHERVON IND

Fastener driver

A fastener driver includes a firing pin, a piston connected to the firing pin, a driving member driving a striking assembly to move backward to a top dead center position, and an energy storage device driving the striking assembly to move forward to a bottom dead center position to output an impact force. The distance L3 between the top dead center position and the bottom dead center position is defined as the stroke of the striking assembly, the fastener driver is configured to drive a fastener within a preset length LA to move, and the ratio of the stroke of the striking assembly to the preset length is less than or equal to 1.5 to 1.
Owner:NANJING CHERVON IND

Active circuit breaker, motor controller, electric assembly and vehicle

The invention relates to the technical field of motor controllers, and discloses an active circuit breaker, a motor controller, an electric assembly and a vehicle, the active circuit breaker comprises a conducting strip assembly, the conducting strip assembly comprises a first conducting strip and a second conducting strip, and the first conducting strip and the second conducting strip are arranged at an interval in the width direction of the first conducting strip; the detonating device is arranged between the first conducting strip and the second conducting strip, the detonating device is provided with a conducting pin, the extending direction of the conducting pin is parallel to the thickness direction of the first conducting strip, the detonating device is provided with a first firing pin and a second firing pin, the first firing pin is used for impacting the first weak part, and the second firing pin is used for impacting the second weak part. According to the active circuit breaker disclosed by the invention, the space in the thickness direction of the first conducting strip can be utilized for mounting the conducting pin, so that the space in the width and length directions of the first conducting strip can be more redundant, other structures of the motor controller are convenient to mount, and the internal space of the motor controller is optimized.
Owner:BYD CO LTD

Fastener driver

The invention discloses a fastener driver which comprises a transmission mechanism driving a striking assembly to move, and the striking assembly comprises a firing pin; an accommodating part; the light-emitting device comprises a connecting part, and at least part of the connecting part is movably contained in the containing part. The fastener driver is convenient to use.
Owner:NANJING CHERVON IND

Impact fatigue test system for simulating gun firing pin working condition environment

The invention belongs to the technical field of impact fatigue tests of metal materials, and relates to an impact fatigue test system for simulating a working condition environment of a gun firing pin, which can perform high-frequency cyclic loading of 200MPa-500MPa, microsecond (mu s) level impact pulse and more than kilohertz (kHz), and synchronously simulate the working condition environment. High-energy, high-frequency and short-pulse impact loading under the gun and gun firing pin working condition is carried out through the high-frequency impact generation subsystem, and the dynamic mechanical environment in actual service is effectively simulated; the environment simulation subsystem is used for accurately controlling the temperature, the concentration and the pH value of media such as salt mist and seawater, and is synchronously coupled with mechanical shock, so that mechanical-electrochemical synergistic damage conditions are truly represented; dynamic stress, strain, electrochemical parameters and surface topography in the impact process are synchronously monitored through a multi-parameter synchronous acquisition subsystem, and complete data support is provided for researching the damage evolution law of a material under a complex load; the repeatability and the safety of the test are ensured through the modularized sample clamp subsystem and the dynamic sealing design.
Owner:CHINA SHIPBUILDING INDUSTRY CORPORATION NO725 RESEARCH INSTITUTE

Nail gun

The invention discloses a nail gun, and belongs to the technical field of power tools. The nail gun comprises a gun body, a firing pin and a torsion spring, the firing pin is movably arranged in the gun body, a torsion spring body of the torsion spring is rotatably connected with the gun body, a first torsion arm of the torsion spring is connected with the firing pin, a second torsion arm of the torsion spring is connected with the gun body, and the torsion spring is used for driving the firing pin to move towards a muzzle of the gun body. According to the scheme, the torsional spring is adopted as a driving part to drive the firing pin to move towards the muzzle of the gun body to achieve the nail striking effect, the structure is simple, the torsional spring is low in cost and convenient to disassemble, assemble and replace, the use cost of the nail gun is reduced, and due to the fact that the torsional spring has the vibration absorbing and striking effects, the service life of the nail gun is prolonged. And in the process of driving the firing pin to move, the effects of buffering impact and reducing vibration can be achieved, the problem of vibration is avoided, and therefore the use experience feeling of the nail gun can be improved.
Owner:ZHEJIANG BURLEY TOOLS

Firearm trigger with safety blade

A safety trigger system comprising a trigger housing, a safety blade member, a safety latch member configured to interfere with a firearm housing preventing the entire trigger stroke and the release of the firearm firing pin. The safety blade member and the safety latch member disposed within the trigger housing and held into a pre-depressed state through resistance force provided by a resistance member.
Owner:TYRANT DESIGNS CNC LLC

Nail magazine device, driving device, firing pin lifting mechanism and nail gun

A nail magazine device includes a side wall, a movable member and a cover. The cover is provided on the side wall, and the cover and the side wall define an internal space therebetween, in which the movable member positioned with its first side surface facing the side wall and its second side surface facing the cover. The internal space between the movable member and the cover provides a nail chamber for receiving gun nails. The cover is configured to be openable and closable with respect to the side wall to open or close the nail chamber. The movable member is configured to be able to adjust a width of the nail chamber.
Owner:HANGZHOU GREAT STAR IND CO LTD

Portable firing device easy to operate

The invention relates to an easy-to-operate portable percussion device which comprises a launching assembly and a percussion assembly, the launching assembly is in threaded connection with the percussion assembly, the launching assembly comprises a launching head, the launching head comprises a flange base with threads and a cylinder, the flange base and the cylinder are integrally formed, and the flange base and the cylinder are in threaded connection. The emission head comprises a plurality of first through holes, a plurality of second through holes and a plurality of second air chambers, each second air chamber is of a gradually-changed circular long and narrow pipe structure with two wide ends and a narrow middle, and a net hammer and a heavy hammer are placed in each second air chamber; the percussion assembly comprises a percussion device and a gas cylinder mounting seat, the percussion device comprises a firing pin and a vent hole, and the firing pin is located in the center of the vent hole. The device has the advantages that the device is simple in structure and convenient to operate, and loading and ammunition replacement can be achieved without completely disassembling the device; and the second air chamber is arranged, so that higher launching speed and stronger launching power can be obtained during launching of the net hammer, and the launching power and the launching range are farther.
Owner:ANHUI BRAINWARE LINKCON TECH CO LTD

Fastener driver and nail gun

A fastener driver includes: a trigger assembly operated by a user to switch between a first state in which a striker is allowed to strike a fastener and a second state in which the striker is forbidden to strike the fastener; a lifting assembly, where at least part of the lifting assembly is movably disposed in a magazine to drive the fastener to move in the magazine; and a dry fire prevention assembly having a dry fire prevention state, where the dry fire prevention assembly includes a stopper, and in the dry fire prevention state, the trigger assembly is forbidden by the stopper to switch to the first state. When the trigger assembly obstructs the stopper from performing a first motion, the lifting assembly drives the stopper to perform a second motion.
Owner:NANJING CHERVON IND

Diameter detection device for manufacturing electric tool firing pin

The invention relates to the technical field of firing pin diameter detection, in particular to a diameter detection device for manufacturing an electric tool firing pin, which mainly comprises a fixing frame, a rotating mechanism, a fixing mechanism and a detection mechanism, wherein a feeding assembly is arranged on one side of the fixing frame, and a detector and a discharging assembly are mounted on the top surface of the fixing frame; the fixing mechanism is arranged above the fixing frame, and the pushing mechanism is arranged above the fixing frame. A block body rotates to an arc-shaped block, the arc-shaped block extrudes the block body to move, the block body drives a connecting rod and a second piston plate to move, the second piston plate pushes hydraulic oil in a cavity to drive a first piston plate to move, the first piston plate drives a push rod and a third T-shaped block to move, and the third T-shaped block drives a push plate to move. The pushing plate pushes the firing pins to be dumped to the discharging assembly and slide into the collecting assembly, the firing pins do not need to be specially carried into the collecting assembly through a carrying assembly, the firing pins are collected, and then the cost of the whole device is reduced.
Owner:SUZHOU CHANGZHI PRECISION MASCH CO LTD

An unmanned aerial vehicle tear gas launcher

The present invention provides a drone tear gas launcher, which includes a magazine fixing part that is provided with a plurality of launch ports along its length direction and trigger slot holes corresponding to the launch ports; a magazine that is placed inside the magazine fixing part, and the magazine is provided with accommodation cavities corresponding to the launch ports one by one; a launching part that can move along the length direction of the magazine fixing part, one end of which is fixedly provided with a launch tube, and the other end is fixedly provided with a trigger unit. The trigger unit includes a firing pin and a firing hammer. The firing hammer can strike the firing pin, and when the end of the firing pin can enter the accommodation cavity. The present invention uses the cooperation of the magazine fixing part and the magazine to place a plurality of tear gas bombs in the accommodation cavities, and uses the firing hammer and firing pin of the trigger unit to launch the tear gas bombs in sequence.
Owner:BEIDOU ANZE DEFENSE TECH CO LTD +3

Nail gun

A nail gun. The nail gun comprises a nose for nail ejection, a piston-firing pin assembly (1) acting from a first position to a second position to hit a nail into a hit object, and a cylinder serving as an energy storage device; the piston-firing pin assembly (1) comprises a piston (11) and a firing pin (12) which are fixedly connected; the piston (11) is adapted to the cylinder; and a plurality of engaging teeth (121) are machined on one side of the firing pin. The nail gun further comprises a motor, a driving shaft connected to the motor, a lifting / lowering wheel enabling the piston-firing pin assembly (1) to move from the second position to the first position, and an engaging component (3) arranged on the lifting / lowering wheel and working in conjunction with the engaging teeth (121); the engaging component (3) comprises a plurality of first engaging members (31) arranged in the direction of rotation of the lifting / lowering wheel, a second engaging member (32) located at the head of all the engaging members in the direction of rotation of the lifting / lowering wheel, and an abutting member (33) acting on the second engaging member (32) to abut against same; the abutting member (33) gives the second engaging member (32) a set value, and when nail jamming occurs and the force applied by the engaging teeth (121) to the second engaging member (32) exceeds the set value, the second engaging member (32) provides clearance by means of rotation, avoiding the occurrence of a direct rigid impact between the second engaging member (32) and any engaging tooth (121) of the firing pin (12).
Owner:ZHEJIANG RONGPENG AIR TOOLS CO LTD

High-reliability rapid electric firing device

PendingCN120368786AGas-blowing apparatusCompressed gas gunsGas cylinderElectric machine
The invention discloses a high-reliability quick electric firing device, which comprises a firing unit, the firing unit comprises a pull ring, a firing bin, a gas cylinder bin, a limiting unit, a first spring, a pull rod and a firing pin, one end of the firing bin is rotationally clamped and connected with the pull ring, the other end of the firing bin is connected with the gas cylinder bin, the first spring, the pull rod and the firing pin are arranged in the firing bin, one end of the pull rod is connected with the pull ring, and the other end of the pull rod is connected with the limiting unit; the two ends of the first spring abut against the firing bin and the firing pin respectively, the firing pin conducts axial movement limiting through the pull rod, the end, away from the first spring, of the firing pin is a sharp end and faces the gas cylinder bin, a limiting groove is further formed in the firing pin, and the limiting unit comprises a motor and a limiting assembly; the launching unit is detachably connected with the gas cylinder bin and comprises a gas cylinder connecting unit, a connector and a launching head, the gas cylinder connecting unit and the launching head are both detachably connected with the connector, and the gas cylinder connecting unit is further used for mounting a gas cylinder and launching the launching head when the firing pin is used for firing and puncturing the gas cylinder. Response speed is fast, safety and reliability are high, and cost is low.
Owner:CHONGXIA INTELLIGENT TECHNOLOGY (ZHEJIANG) CO LTD

Training rifle with adjustable trigger force and laser sight.

This invention provides a training gun with adjustable trigger force, comprising a gun body, a trigger, a connecting shaft, a firing pin, and a striking element. It also includes a pressure adjusting component and an aiming unit. One end of the pressure adjusting component is threadedly connected to the connecting shaft via a first elastic element, used to adjust the trigger pull force. The aiming unit is located on the barrel of the gun body. This training gun realistically simulates the impact force generated by trigger pull, changing the previous situation where training guns could only aim but not fire. Trainees can use this training gun to master the coordination of aiming, firing, and timing. During training, the aiming unit is activated, emitting a beam of light onto the target. The trainee pulls the trigger and observes the change in the beam's position on the target, thus achieving the training objective. Simultaneously, the pressure adjusting component can simulate the trigger force of various types of firearms, allowing training with this gun to achieve the purpose of training with various types of firearms.
Owner:常旬

A device and method for calibrating the rear sight of a pistol

This invention discloses a device and method for calibrating the rear sight of a pistol, enabling theoretical calibration when the pistol is not firing and personalized calibration during live-fire testing. It includes an adjusting seat, a limiting block, and a movable block. The recessed portion of the adjusting seat engages with the two side walls of the bolt for limiting its position. A boss is provided on the outer surface of one side wall of the adjusting seat, with a circular hole and a threaded hole inside the boss. A pusher head slides within the circular hole, and an adjusting rod engages within the threaded hole. The adjusting rod actuates the pusher head, which in turn adjusts the lateral position of the rear sight on the bolt. The limiting block has a cylindrical positioning rod at its front end, which is inserted into the firing pin hole at the rear end of the bolt for limiting its position. The limiting block has two side walls for engaging with the vertical groove at the rear end of the bolt for limiting its position. The limiting block has engraved lines. The rear end of the movable block is hinged to the upper end of the limiting block. The front end of the movable block has a square boss for engaging with the rear sight notch on the rear sight for positioning. An arrow mark is provided in the center of the rear end face of the movable block.
Owner:CHONGQING JIANSHE IND GRP

Power tool

PendingCN120715837ANailing toolsIndustrial toolPower tool
The invention discloses a power tool, and belongs to the technical field of industrial tools. The power tool comprises a gun body, an air cylinder and an inflation device and / or deflation device, the gun body is provided with a firing pin assembly, and the firing pin assembly is used for pushing the fixing piece to stretch out so that the fixing piece can be fixed to a workpiece; a piston rod of the cylinder is connected with the firing pin assembly; the cylinder is used for driving the firing pin assembly to push the fixing piece to extend out; the inflating device is communicated with the rodless cavity of the air cylinder and can inflate the rodless cavity; and the deflation device is communicated with the rodless cavity and can deflate the rodless cavity. According to the scheme, the inflation device can inflate the rodless cavity so as to ensure that the cylinder pressure in the air cylinder can meet the working requirement, and it is ensured that the fixing piece can be rapidly and powerfully fixed to the workpiece; the deflation device can deflate the rodless cavity so as to ensure that the cylinder pressure in the rodless cavity of the air cylinder is not too high when the power tool is idle or transported, the air cylinder can be prevented from being exploded or damaged due to the too high cylinder pressure, and therefore the safety of the power tool is effectively improved.
Owner:ZHEJIANG BURLEY TOOLS

An animal vaccine injection booster device

ActiveCN224269517UFast terminal speedReduce processing requirementsClimate change adaptationVeterinary instrumentsMedical equipmentMedicine
This utility model relates to the field of medical equipment technology, and in particular to an animal vaccine injection booster device, comprising a first air chamber, a second air chamber, a piston assembly, and a gun body; the gun body has a first air chamber and a second air chamber, the first air chamber having a gas source inlet, a gas outlet, and a gas delivery outlet, the gas delivery outlet communicating with the second air chamber, and a control valve also being provided in the first air chamber; when the trigger of the gun body presses the control valve, the control valve blocks the connection between the gas delivery outlet and the gas outlet; when the trigger of the gun body is released, the control valve blocks the connection between the gas delivery outlet and the gas source inlet; the second air chamber has a piston assembly, the piston assembly including a piston and a firing pin, the firing pin being disposed on the piston, and an elastic element being provided between the piston and the firing pin output end of the second air chamber; the trigger is disposed on the grip part of the gun body, the grip part having a grip groove on the side near the trigger, and a thumb groove on the top side of the grip part away from the trigger. This utility model is easy to operate and has a good grip feel.
Owner:广东美特智能工具有限公司

Nail gun

PendingCN121468456ANailing toolsMuzzleMagazine
The invention discloses a nail gun. The nail gun comprises a gun head and a magazine mounted on the gun head, the gun head comprises a gun barrel and a gun nozzle; the gun nozzle axially stretches out and draws back at the front end of the gun barrel; a bumping needle hole and a gun nail placing hole are formed in the gun barrel; the striker hole is used for coaxially moving the striker; the gun nail placing hole and the gun nail placing hole are coaxially arranged; tangent planes of one sides, far away from the magazine, of the striker hole and the gun nail placing hole are coplanar; and the diameter of the striking needle hole is smaller than that of the gun nail placing hole. After the firing pin completes firing, the head of the firing pin does not make contact with a broken plastic connecting piece on a shoot nail on the lower side, and the nail clamping phenomenon caused by the fact that the next shoot nail is driven to move forwards due to the fact that the head of the firing pin is abraded is effectively avoided.
Owner:ZHONGJIEDING IND CO LTD

An electric tool punch pin outer surface processing device

The application provides an outer surface processing device for electric tool striker, and relates to the technical field of electric tool striker processing, which comprises a striker processing part, a striker supporting part, a striker moving part and a striker guiding part; the striker supporting part is installed on the striker processing part, and is used for supporting the electric tool striker to be polished; the striker moving part is installed on the striker processing part, and is used for moving and rotating the electric tool striker; the striker guiding part is installed on the striker processing part, and is used for guiding the polished electric tool striker to be discharged; when two servo motors b work, the two circular clamping rods drive the electric tool striker to rotate, so that the automatic polishing of the outer surface of the electric tool striker is realized; and the problem that the surface of the striker cannot be polished at one time is solved.
Owner:SUZHOU CHANGZHI PRECISION MASCH CO LTD

Universal releasing and pulling dual-purpose trigger fuse device

ActiveCN223449083UImpact fuzesDual purposeAdvanced manufacturing
The utility model relates to the technical field of advanced manufacturing and automation, and discloses a universal releasing and pulling dual-purpose trigger fuse device, which comprises a fuse body, a connecting lug is arranged on the outer wall of the fuse body, a trip wire structure is arranged at the top of the fuse body, the trip wire structure comprises a trip wire seat, a wire winding shaft is arranged in the trip wire seat, and the wire winding shaft is connected with the connecting lug. And a trip wire is wound on the wire winding shaft. By designing the trip wire structure and screwing the nut in advance, the tightness of the trip wire is adjusted, the upper safety pin has a free pulling space, then the trip wire is fixed on the trip wire pile, the protruding part of the fire pulling rod is inserted into the split fork head at the tail part of the firing pin, the split fork head is opened and clamped in the bundle hole in the fuse body, and the firing pin spring is in a compressed state, so that the trip wire is fixed on the trip wire pile. When the upper safety pin and the lower safety pin are pulled out, the fuse body can rapidly trigger an internal mechanism when a trip wire is pulled, and a mechanical device in the fuse body is activated, so that an explosion reaction is initiated.
Owner:SHENYANG JUNWEI ELECTRONIC TECH CO LTD

Dual-drive piezoelectric valve

The utility model relates to the technical field of dispensing, in particular to a dual-drive piezoelectric valve which comprises a valve body and a fluid seat, the fluid seat is mounted on the valve body, and a nozzle is arranged on the fluid seat; the lever is arranged in the valve body, and the lever swings by taking a supporting part arranged in the valve body as a fulcrum; the two actuating assemblies are arranged in the valve body, each actuating assembly comprises an abutting part, and the two abutting parts alternately move towards or away from the lever so as to drive the lever to swing; and the firing pin is arranged on the fluid seat, the firing pin abuts against the bottom of the lever, and the firing pin can stretch into the nozzle to control the nozzle to discharge glue. The two actuating assemblies located on the two sides of the lever supporting part alternately work to control the lever to swing stably, and the swing stability of the lever and the precision that the lever pushes the firing pin to move are improved.
Owner:CHANGZHOU MINGSEAL ROBOT TECH CO LTD

Nail gun

The invention discloses a nail gun, and belongs to the technical field of power tools. The nail gun comprises a safety frame assembly, a driving part, a spring bolt and an elastic driving piece, the safety frame assembly is arranged on a gun head of the nail gun in a sliding mode, and under the condition that the safety frame assembly is located at the working position, a driving device of the nail gun can drive the firing pin to shoot out the fixing nail in the channel; the driving part is arranged on the nail pushing device; the spring bolt is rotationally arranged on the cartridge holder, and under the condition that the spring bolt rotates to a preset angle, the spring bolt limits the safety frame assembly to move towards the working position; the elastic driving piece is connected with the spring bolt and used for driving the spring bolt to rotate to a preset angle; and under the condition that the number of the fixing nails in the cartridge holder and the number of the fixing nails in the channel are zero, the driving part pushes the elastic driving piece so as to drive the spring bolt to rotate to a preset angle. According to the scheme, when the number of the cartridge holder of the nail gun and the number of the fixing nails in the channel are zero, the driving part pushes the elastic driving piece to drive the spring bolt to limit the safety frame assembly to move to the working position, the driving device cannot drive the firing pin to act, and empty striking is prevented.
Owner:ZHEJIANG BURLEY TOOLS

A low-cost explosion-proof delay fuse for a grenade

ActiveCN117570794BDetonatorTorsion spring
The application discloses a low-cost explosion-proof delay fuse for a grenade, which comprises a body, a rotating shaft, a torsion spring, a safety pin, a fire isolation cup, an impact primer, a primer seat, a blunt flame delay detonator, a flap, a grip piece, a striker and a quick-release pin, and meets the requirement of explosion-proof safety. The striker is arranged in a straight line on the blunt flame delay detonator, and the impact primer is fixed on the flap in a spatially staggered and isolated state. The quick-release pin and the safety pin, which are manually released by different actions, serve as the redundant safety of the flap. Before throwing, the two safeties are manually released when the grip piece is gripped. After throwing, the grip piece falls off, the impact primer on the flap rotates around the rotating shaft under the action of the torsion spring, hits the striker and fires, high-temperature and high-pressure gas passes through the fire transmission hole on the striker, triggers the blunt flame delay detonator, and explodes the main charge in the grenade body after a predetermined delay. The application has a simple and compact structure, a short exposed grenade body and low cost.
Owner:NANJING UNIV OF SCI & TECH