508 results about "Firing pin" patented technology

The invention discloses a nail gun which comprises a power assembly at least comprising a motor and a transmission assembly. The firing assembly at least comprises an air cylinder assembly and a firing pin assembly; 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 firing pin assembly at least comprises a firing pin and a piston arranged at the top end of the firing pin. The distance D1 between the firing pin and the foremost end of the second shell in the front-back direction is smaller than or equal to 40 mm.

The invention discloses a nail gun which comprises a power assembly at least comprising a motor and a transmission assembly. The firing assembly at least comprises an air cylinder assembly and a firing pin assembly; 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; wherein at least part of the power assembly is located in the first shell; the distance D7 between the gravity center of the nail gun and the center face formed by the first shell in the front-back direction and the up-down direction is smaller than or equal to 5 mm.

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.

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.

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.

A nail gun (100), comprising: a power assembly (20) which comprises at least an electric motor (21) and a transmission assembly (22); a trigger assembly (40) which comprises at least a cylinder assembly (41) and a striker assembly (42); and a housing assembly (10) which comprises at least a first housing (11) held by a user and a second housing (12) for accommodating at least part of the trigger assembly, wherein the power assembly is at least partially located in the first housing; and a distance D7 between the center of gravity of the nail gun and a central plane formed by a front-rear direction and an up-down direction of the first housing is less than or equal to 5 mm.

The utility model discloses a pressure regulating silencer with a deslagging function, which comprises a silencing pipe, a pressure regulating sleeve sleeved on the silencing pipe and a silencing outer sleeve sleeved outside the pressure regulating sleeve, a silencing chamber is formed between the silencing pipe and the silencing outer sleeve, a deslagging silencing hole communicated with the silencing chamber is arranged on the silencing pipe, and a deslagging hole is arranged on the silencing outer sleeve. The residue discharging holes are formed in the silencing outer sleeve, so that independent residue discharging paths are formed among the residue discharging silencing holes in the silencing pipe, the silencing chamber between the silencing pipe and the silencing outer sleeve and the residue discharging holes in the silencing outer sleeve, and residues do not need to enter the nail fixing device any more. The nail fixing device effectively prevents the residues from entering the nail fixing device to cause corrosion, jamming and other damage to key components (such as a firing pin assembly), greatly prolongs the service life of related equipment components, reduces the maintenance frequency and cost caused by component damage, does not need to disassemble and assemble the nail fixing device main body to clean the residues in the nail fixing device, and improves the working efficiency. And the overall reliability and stability of the equipment are improved.

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.

A self-loading hand firearm with a barrel secured to a frame, a firing pin, a slide, and a closure which is held, in the front position of the slide, in a locking position on the frame and which is moved from the locking position into a release position by gas pressure of a fired projectile. The closure is formed at least in two parts with a closure locking mechanism, which has two lateral legs, and a closure impact base lying between the legs, the closure locking mechanism being provided at the legs with at least one protruding driver element, which engages in a recess of the slide, and with at least one retaining cam, which engages in a shoulder of the frame. The closure impact base and the closure locking mechanism are hinged to one another.

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.

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.

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.

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.

The present application discloses a fastener driver comprising: a striking assembly comprising a piston and a striker connected to the piston; the transmission mechanism comprises a driving part which is arranged to drive the striking assembly to move backwards to an upper dead center position; the energy storage device is arranged to drive the striking assembly to move forwards to the position of a lower dead center so as to output striking force, and the energy storage device comprises a ventilation part for inflating and deflating the energy storage device; the control device is arranged to control the firing pin to be located at the stopping position, and the stopping position is located between the upper dead center position and the lower dead center position. Wherein the striking assembly is arranged to move backwards to and stay at a preparation position which crosses the stop position to be close to the top dead center position before the energy storage device is inflated, or move backwards to and stay at an inflation position which reaches or crosses the top dead center position. The fastener driver is safe and convenient to use.

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.

An ejector mechanism for a firearm includes an ejector disposed at a forward face of a bolt. The ejector includes a hole designed to provide clearance for the firing pin to pass at least partially through the ejector. The hole may include a counterbore on a rear side of the ejector.

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.

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.

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.

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.

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.

The invention discloses a deep learning feature-based automatic identification method for a firing pin trace, which is used for realizing accurate and automatic identification of the firing pin trace. The method comprises the following steps of: acquiring firing pin trace sample data by using a three-dimensional confocal microscope; filtering the acquired firing pin trace sample by using a spline filter to obtain firing pin trace surface roughness texture features; in consideration of an initial phase between the samples, keeping the reference sample unchanged, and rotating the to-be-detected sample in a range of [-180 degrees, 180 degrees] by taking 3 degrees as a step length; the reference sample and all the to-be-tested samples obtained through rotation are subjected to matching through a Detector-Free Local Feature Matching with Transformers (LoFTR) algorithm, and a combination with the largest number of matched feature points is selected as a preliminary matching result; in order to further improve the matching precision, the Locality Preserving Matching (LPM) technology is introduced on the basis to carry out wrong matching filtering on the preliminary matching result, so that a more reliable matching result is obtained. According to the automatic pin firing trace recognition method based on the deep learning features, whether two bullet shells are from the same gun or not can be judged according to the number of the matched feature points, and then auxiliary evidence is provided for detection of gun-related cases.

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.

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).

The invention discloses a fastener driver which comprises a firing pin, a driving device and a driving device. The transmission mechanism is arranged to drive the firing pin to move backwards at least to the stop position; the motor is arranged to at least drive the transmission mechanism; the controller is connected with the motor; the detection mechanism is connected with the controller, and the detection mechanism is arranged to detect the position of one moving part and send out a detection signal to allow the controller to send out a control signal when the moving part is in a first preset position range; wherein when the moving part reaches a second preset position before the stopping position, or when the moving part reaches a first preset time before the stopping position, the controller sends out a control signal to control the motor to rotate by a preset number of turns or brake after the second preset time. The fastener driver is safe and convenient to use.

A multistage pulse high-frequency dynamic load fracturing method comprises the steps that a coal seam and a cover layer horizontal well are drilled out, supercritical CO2 is used for fracturing an upper cover layer of the coal seam, and fracturing cracks are expanded to a target coal seam to form a crack network; injecting high-pressure oxygen into the horizontal well of the cover layer, and enabling the high-pressure oxygen to enter the low-permeability target coal seam to form an oxygen-enriched coal seam; tripping in a bridge plug; operation gas and fuel are charged into the burning and explosion tool, the burning and explosion tool is lowered, and the packer is set; high-pressure nitrogen is used for pushing a piston to move downwards, a constant pressure valve is opened, and a gaseous combustion improver enters a combustion explosion cavity to be mixed with a liquid alkyl compound; the piston is used for pushing the trigger needle to move downwards, so that the trigger linkage rod relieves limiting of the firing pin, the firing pin rapidly strikes gunpowder, and ignition operation is completed. The liquid alkyl compound is quickly burnt and exploded, potassium permanganate in the detachable hollow pipe is decomposed to generate a large amount of oxygen, and methane-oxygen mixed gas in a gap network is ignited while secondary burning and explosion occur. The method can obviously improve the mining efficiency of the coal bed gas.

The utility model discloses a percussion assembly of a nail shooting device and the nail shooting device, and belongs to the field of handheld nailing tools. According to the scheme, a percussion sleeve sliding groove is omitted, and percussion of the nail shooter is not affected. In the stress energy storage process of the first spring, the pipe base is close to the base body and extends into the first through groove of the base body, and the trigger part at one end of the pipe base can make contact with the safety pin of the safety device. And then the trigger part pushes the safety pin to move into the second groove. After the safety pin completely enters the second groove, energy stored by the first spring is released instantly, the whole shaft rod is pushed to slide in the second through groove, and then the firing pin is pushed to move in the first direction and collide with the nail bottom shell. The percussion process is completed through cooperation of the first through groove, the second through groove, the safety device and the trigger part, a sliding groove does not need to be formed in the tube base, the phenomenon that the percussion pin is stuck due to the sliding groove is avoided, and the machining cost is reduced.

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.