1835 results about "Gun barrel" patented technology

Present embodiments relate to a modular firearm. More specifically but without limitation, present embodiments relate to a modular firearm, for example semi-automatic rifle, with various modules that provide differing functions to a semi-automatic or automatic rifle. Some of the functions include, but are not limited to, connector for ambidextrous stock folding, interchangeable magwell for changing of firearm caliber, a barrel module with evacuation chamber, and ambidextrous charging handle.

A firearm accessory mounting and protection system including integrated channels machined into the handguard or receiver of a firearm that allows wires / cables to be concealed and protected under removable covers which slide into the integrated channels. These channels can also be used to mount and accommodate optional accessories or mounting surfaces. A firearm free-float handguard mounting system including a barrel nut and cam-lock mount with two machined cam-lock bolts that ride on the cam-lock nut and move up and down with a forty-five degree motion while contained in the handguards housing where the bolts sit in channels machined into the barrel nut allowing for the handguard to be easily installed or removed for cleaning, firearm maintenance, servicing, etc.

An improved AR platform firearm includes modular brass deflectors and brass catches; sleeved takedown and pivot pinholes; a cam latch device for a secure upper / lower receiver connection; a two-piece upper receiver; a taper-fit barrel system; a barrel alignment system using a barrel alignment washer; a charging handle that positively engages with the bolt carrier; a charging handle retention system using a spring detent; a bolt carrier with rear wall to absorb shear force on the gas key or anvil; a leak-proof gas system using a straight gas tube, ferrule and threaded connection with the gas block; a gas block stop notch that mates with a gas block key; a gas block jam nut for holding the gas block in place; an interchangeable gas system; an expansion chamber; a handguard with adjustable weights; a handguard lock-up mechanism; a handguard extender; and a sloped Picatinny rail for extending scope utilization.

A bushing / compensator device for a firearm is provided that includes a compensator member having a first aperture having an axis that is coaxial with the axis of the barrel. A second aperture has an axis that is coaxial with the axis of the guide rod when the device is mounted on the slide. A quarter turn bayonet mount is disposed at a rear end of the first aperture that mates with a bayonet mount aperture in the slide. When the bayonet mount is locked, the axis of the second aperture is aligned with the axis of the guide rod of the pistol, and when the bayonet mount is unlocked, the device is removable from the slide. A button assembly is retained in the second aperture and includes a head at one end and a fastener at the other. The rod is slidable from a first position wherein the head is adjacent to the front end of the second aperture, to a second position wherein the second end of the rod depresses the recoil spring plug. A spring biases the rod to the first position.

The invention belongs to the technical field of smoke dust and flue gas sampling, and particularly relates to a smoke dust and flue gas sampling gun with a convenient-to-assemble and disassemble gun feeding support, the smoke dust and flue gas sampling gun comprises a sampling mechanism, the sampling mechanism comprises a sampling gun main body, a gun barrel and a smoke dust and flue gas sensor, the gun barrel is detachably sleeved with a centering fixing mechanism, a plugging mechanism and a pushing mechanism, the plugging mechanism penetrates through the centering and fixing mechanism and is fixedly connected with the centering and fixing mechanism, the pushing mechanism is fixedly connected with the plugging mechanism, and the centering and fixing mechanism is used for being fixedly connected with a flange plate of a flue and enabling the plugging mechanism and a sampling pipeline to be coaxially arranged. The device can be fixed on flange plates of different flues through the centering and fixing mechanism, the flange plates and the plugging mechanism can be always in a coaxial state, then sampling mechanisms of gun barrels with different pipe diameters can be pushed to move through the pushing mechanism, the position of a smoke dust and flue gas sensor in the flues can be accurately adjusted, and the sampling accuracy of the smoke dust and flue gas sensor is improved. And long-time manual supporting is not needed.

A toy rounds blaster apparatus launching multiple projectile rounds with an energy source including a single launch spring for moving one or more pistons within one or more cylinders. A pressure distributor couples each of the one or more cylinders forward the one or more pistons, with an alignment system receiving a collection of the projectile rounds, for aligning individual projectile rounds between pressure distributor and the at least one barrel, with the pressure distributor coupling each of the one or more cylinders with a respective one of the individual projectile rounds. An actuator is linked with the energy source for causing the single launch spring of the energy source to move the one or more pistons and launch the projectile rounds.

The utility model discloses a rocket type catching net launching device which comprises gun barrels, gas bombs, a percussion mechanism, a catching net, a cartridge receiver and a folding telescopic rod, the gas bombs are arranged in the corresponding gun barrels, the percussion mechanism is arranged at the tail ends of the gun barrels, the catching net is connected with the gas bombs, and a fixing part is fixedly installed at the front end of an inner cavity of the cartridge receiver. The tail end of the gun barrel is detachably installed on the front side of the fixing component, and the folding telescopic rod is arranged at the front end of the gun barrel. The high-pressure gas cylinder is adopted as launching power, compared with power sources such as ammunition and fuel, higher safety is achieved, materials are easy to obtain, cost is lower, the unfolding angle of the gun barrel can be freely adjusted according to actual requirements, the larger the unfolding angle is, the higher the unfolding speed of the catching net is, and the closer the flying distance is. The method is suitable for close-range combat; otherwise, the smaller the unfolding angle is, the slower the unfolding speed of the catching net is, the farther the flying distance is, and the catching net is suitable for long-distance combat.

A handguard assembly for a firearm includes an outer member disposed forward of an upper receiver of the firearm where, a barrel nut disposed within the rear cavity, and at least one alignment member. The outer member includes a rear cavity and a threaded portion. The at least one alignment member contacts both the outer member and the upper receiver for alignment.

The invention discloses a double-injection rubber-coated product assembled in a super-thick plastic part cavity structure mold and a production process of the double-injection rubber-coated product. A molten plastic material is injected into a first injection mold cavity through a first gun barrel of a double-injection injection molding machine to form a first injection molding part and a second injection molding part which are integrated; then the six-axis robot is controlled to drive the part taking and mounting tool to move to grab the insert and fix the insert to the second injection molding part, and at the moment, a closed assembly part with a cavity structure is formed between the second injection molding part and the insert; finally, a molten plastic material is injected to the outer surface of the assembly part of the second injection mold through a second gun barrel of the double-injection injection molding machine to form a third injection molding part; according to the technology, the overall weight of a solid structure product can be greatly reduced, the material use is reduced, the material cost is reduced, the product cooling time is shortened through the design of the cavity structure, the production efficiency is improved, and the product defects such as surface shrinkage marks and internal irregular cavities caused by excessive shrinkage of a plastic material in the cooling and curing process are thoroughly eradicated.

A firearm with ambidextrous bolt release mechanism includes a barrel and a bolt slideably mounted in the receiver for axial movement between forward closed breech position in battery with the barrel and a rearward open breech position. A recoil spring biases the bolt forward. A side-mounted bolt catch lever is configured and operable to selectively hold the bolt in the open breech position, and disengage the bolt to reclose the breech when manually actuated. A transversely movable actuator plunger allows a user to release the bolt from the side of the firearm opposite the bolt catch lever side. The plunger comprises an inclined camming surface which slideably engages a mating inclined camming ramp on the lever. Wedging action applied to the bolt catch lever by the plunger rotates the lever about its pivot axis to disengage and release the bolt.

A free-floating handguard for mounting onto a firearm includes a tubular polymer-based handguard body allowing passage of a barrel therethrough. The handguard body has a free-floating muzzle end and a clamping end engaging a barrel nut that secures the barrel to the firearm. A downwardly extending lobe is formed on the handguard body proximate the clamping end. The handguard body may further include either or both of a first metal insert and a second metal insert. The first metal insert may be embedded within a bottom wall of the downwardly extending lobe and releasably couple with a mounting feature on a firearm sling. The second metal insert may be embedded within the downwardly extending lobe and defines a threaded bore for receiving a threaded fastener therein. The threaded fastener and second metal insert may clamp the clamping end on the barrel nut to secure the handguard body on the firearm.

The invention belongs to the field of unmanned aerial vehicle safety, and particularly relates to an unmanned aerial vehicle high-speed collision body safety evaluation test device, which comprises a collision protection cabin, a speed measurement device, a sabot separation mechanism, a special-shaped gun barrel, a rapid bomb loading device and a gas storage tank, the special-shaped gun barrel is cylindrical and horizontally arranged, the impact protection cabins are arranged on the outer side of the output end of the special-shaped gun barrel at intervals, and the speed measuring device is arranged between the impact protection cabins and the output end of the special-shaped gun barrel. The high-speed impact test of the unmanned aerial vehicle is realized by adopting the special-shaped gun barrel and the integrated sabot separation mechanism and adopting the 400mm large-diameter gas gun impact test device to accelerate the unmanned aerial vehicle to a specified speed, so that the reliability of a test result is ensured, and the test cost and the test difficulty are also remarkably reduced. Meanwhile, the method has wide applicability, can be used for the unmanned aerial vehicle, and is also suitable for impact damage evaluation of an object of 2 kg or above at the speed of 150 m / s.

A gun targeting system (10) comprising a chassis (200). A gun barrel (300) is mounted to the chassis (200) by a pivot mount (304). The system also comprises a chassis suspension system (400) comprising a plurality of wheel arms (402), each wheel arm (402) extending away from a different chassis mount (220) on the chassis (200) to a respective wheel (404), each wheel (404) being rotatably mounted on its respective wheel arm (402), each wheel (404) configured for engagement with a support surface (500). The gun targeting system (10) is operable to position the barrel (300) towards an orientation to target an object by pivoting one or more wheel arms (402) relative to the chassis (200) and / or by pivoting one or more wheels (404) relative to its respective wheel arm (402) and / or by rotating one or more wheels (404) relative to its respective wheel arm (402).

The utility model belongs to the field of mechanical automation, and particularly relates to a bird dispersing system based on a binocular camera. Comprising a main controller, a binocular camera assembly and a sound wave bird repelling cannon assembly, the sound wave bird repelling cannon assembly comprises a bird repelling cannon base, a two-dimensional electric rotary table, a bird repelling cannon base mounting plate, a control igniter, a connector air pipe and a cannon barrel. The two-dimensional electric turntable is mounted on the bird repelling cannon base, and a bird repelling cannon base mounting plate is arranged on the two-dimensional electric turntable; the bird repelling cannon base mounting plate is hinged to an armature on the outer wall of the cannon barrel; a connector gas pipe for injecting gas into the gun barrel is arranged on the outer wall of the gun barrel; a control igniter for detonating gas in the gun barrel is arranged at the tail end of the gun barrel; the multiple binocular camera assemblies are arranged around the sound wave bird repelling cannon assembly. Hardware equipment is simple in structure, and the equipment is adjusted according to actual needs and is convenient to install. Birds are repelled in a sound wave mode, and the birds are reasonably repelled.

The invention belongs to the technical field of dust falling devices, and particularly relates to a dust falling device for building construction, which comprises a bottom frame, an adjusting assembly arranged in the bottom frame, a bracket fixedly mounted on the adjusting assembly, a gun barrel arranged in the bracket, a supporting shaft fixedly mounted on the gun barrel, and a first motor fixedly mounted on the bracket, a water tank is fixedly installed in the bottom frame, a conveying pump is fixedly installed in the water tank, and an atomization assembly is arranged on the gun barrel. According to the dust falling device for building construction, by arranging a flow dividing groove and a spray head, the spraying dust falling range is conveniently widened, when the spraying dust falling range is expanded, a second motor works to adjust the angle of a square plate through a connecting shaft, the position of the spray head can be adjusted, and a water pump works to extract liquid in a water tank; and after the extracted liquid is conveyed into the flow dividing groove, water mist is sprayed to the outside through the spray head, so that the destination of the spraying dust falling range is expanded, the dust falling efficiency is improved, and the working efficiency is improved.

The disclosure is directed at a blank fire bullet trap attachment (BFBTA) that provides improved protection for firearm users when live ammunition is accidently loaded into the firearm. The BFBTA includes a barrel portion made of a first metal; and a hardened element portion made of a second metal, the hardened element portion sized to frictionally fit within the pipe portion; wherein the first metal is softer than the second metal, such that when live ammunition contacts the hardened element portion, the hardened element portion slides within the barrel portion.

The present invention relates to a silencer for mounting on a handgun having a barrel with a barrel extension and a frame with a mounting rail and a trigger guard, including a mounting portion provided and adapted to fixedly receive at least a part of the barrel of the handgun; and an attaching rail provided and adapted to support the silencer on the trigger guard of the handgun; the attaching rail is slidable relative to the mounting portion along a longitudinal direction of the silencer to adjust the silencer to a varying distance between the barrel extension and the trigger guard. The invention further relates to a method for adjusting a silencer on a handgun.

A muzzle device for a firearm may include a device body and a plurality of ball bearings. The device body may be configured to be removably secured to a mount body of a mount configured to be secured to a barrel of the firearm, the mount body including a plurality of lugs each extending radially outward relative to a longitudinal axis of the mount and including a stop and a detent. The device body may include a plurality of protrusions each extending radially inward relative to a longitudinal axis of the muzzle device and configured to engage the stop of a respective lug of the mount to prevent rotation of the muzzle device relative to the mount in a first direction. The ball bearings each may be configured to move relative to the device body and to engage the detent of a respective lug of the mount to inhibit rotation of the muzzle device relative to the mount in a second direction opposite the first direction.

A barrel cooling system for a weapon includes a corrosion prevention cylinder between a barrel and cooling fins arranged around the cylinder.

The present invention relates to a method for ejecting a weapon 22 arranged in a container 20 from a weapon barrel 10 by means of a pressure ejection, wherein the weapon barrel 10 has a pressure inlet 16, wherein the container 20 has at least one pressure inlet opening 24, wherein the method comprises the following steps: a) Extend the container 20 until the pressure inlet 16 and the pressure inlet opening 24 are aligned, b) Ejection of the weapons 22 arranged in the container 20 with the pressure ejection.

Automatically-reloading air guns and methods associated therewith. The automatically-reloading air gun includes a barrel fixedly carried by a frame, and a vent aperture in fluid communication with a firing chamber. Actuation of a release mechanism from an engaged position to a disengaged position allows a charge of compressed gas to slide a firing piston forward to force a projectile in the firing chamber into the breach end of the barrel. The compressed gas can exhaust out of the vent aperture from the firing chamber when the firing piston is in the extended position. The return spring slides the firing piston rearwardly to the retracted position after the compressed gas has exhausted from the firing chamber to automatically reload a new projectile into the firing chamber.

The utility model provides an improved welding gun for a narrow space, which relates to the technical field of welding guns and comprises an adjusting mechanism, a receding mechanism is arranged on one side of the adjusting mechanism, the adjusting mechanism comprises a gun tail, a side plate is arranged at one end of the gun tail, and one end of the gun tail is fixedly connected with the rear end face of the side plate. The U-shaped plate slides on the gun tail when the lead screw is rotated, so that the overall length of the welding gun is increased, then the handle is held by hand to operate the welding gun, it is ensured that a welding rod can reach the farthest welding point in a limited operation space so as to adapt to different space limitations, and the flexibility of welding operation is improved; when the welding gun is used, the connecting frame is shifted on the rotary knob, so that the gun barrel is rotated, an operator is allowed to use the welding gun to operate in any direction where construction is difficult, and the adjustable angle of the welding gun enables the operator to conduct welding in various directions in narrow or complex space.

A rifle has a body, a magazine slot, a handle, a lower mechanism movable between primary and secondary positions in the direction of the barrel extension to drive bullets into the barrel and a monoblock rifle mechanism having an upper mechanism extending over the barrel of the rifle. A primary lock slot is provided on the upper mechanism, and a secondary lock slot on the barrel. One end of a main arm is rotatably connected to the barrel. A button is connected to the main arm so that the user can move the main arm. When the button is pushed from the barrel towards the upper mechanism, if the rifle mechanism is retracted, it will snap into the primary lock slot. If the rifle mechanism is retracted, it includes a mechanism stopper with a lock lever that fits into the primary lock slot and prevents the rifle mechanism from moving.

A muzzle device for a firearm may include a device body and a plurality of ball bearings. The device body may be configured to be removably secured to a mount body of a mount configured to be secured to a barrel of the firearm, the mount body including a plurality of lugs each extending radially outward relative to a longitudinal axis of the mount and including a stop and a detent. The device body may include a plurality of protrusions each extending radially inward relative to a longitudinal axis of the muzzle device and configured to engage the stop of a respective lug of the mount to prevent rotation of the muzzle device relative to the mount in a first direction. The ball bearings each may be configured to move relative to the device body and to engage the detent of a respective lug of the mount to inhibit rotation of the muzzle device relative to the mount in a second direction opposite the first direction.

A firearm sound suppressor can include an outer housing that defines a bore axis and an inner wall disposed at least partially within the outer housing. The inner wall can be oriented along the bore axis and includes a cylindrical central chamber. An annular chamber can be disposed between the outer housing and the inner wall. At least one helical partition can be disposed in the annular chamber to define at least one interleaved helical pathway through the annular chamber. Each interleaved helical pathway includes a first forward helical segment, a reverse helical segment sharing a first common wall with the first forward helical segment, and a second forward helical segment sharing a second common wall with the reverse helical segment. The first and second common walls can be distinct from one another.

An automatic firearm, a barrel usable with an automatic firearm and a shot counter for mounting to a barrel of an automatic firearm. The shot counter is configured to track the number of shots fired through the barrel and to provide an indication of the remaining lifespan of the barrel.

The invention relates to the technical field of blasting, in particular to a method and system for eliminating rockburst through excavation blasting energy, and a finite element numerical calculation model of a tunnel is constructed through simulation modeling. And then determining the influence of the blasting energy to control the aperture of the gun barrel on the blasting process in the model, and further adjusting the aperture ratio in different directions, thereby realizing the accurate control of the blasting energy, further presplitting the deep surrounding rock, and achieving the purpose of eliminating the risk of rock burst. The blasting energy control gun barrel is designed around the explosive, the hole diameter of one side of the tunnel surrounding rock and the hole diameter of one side of the volley face in the tunnel are adjusted, the spreading direction and strength of the blasting energy are accurately controlled, and therefore the purposes of increasing surrounding rock cracks and reducing the rock burst risk are achieved. According to the method, the rockburst risk can be effectively eliminated, the blasting efficiency can be improved, the construction cost is reduced, and remarkable technical advantages and economic benefits are achieved.

A suppressor for a multi-barrel weapon system includes an aft end configured to receive a muzzle of each barrel of the plurality of barrels, a forward end defining a plurality of projectile apertures configured to align with the plurality of barrels when the muzzle of each barrel is received in the aft end, and a sidewall extending from the aft end to the forward end, the sidewall at least partially defining a single continuous interior chamber in which propellant gases emitted from the muzzle of each barrel comingle and circulate. The suppressor can include a plurality of baffles. A plurality of projectile apertures in each baffle can align with the muzzles to define a plurality of parallel bullet paths. Each projectile aperture is in fluid communication with each other projectile aperture.

A recoil compensator for a handgun defines a through opening along a central axis, the through opening including a threaded portion configured to threadably engage the threads on the distal end portion of the barrel. The recoil compensator further defines a port in a top wall and defines fastener openings each configured to receive a taper pin. When the recoil compensator is installed on the barrel, the central axis is substantially coincident with the bore axis and the port is configured to vent a portion of propellant gases from the barrel upon firing the handgun. The threaded portion threadably engages the threads on the barrel with a distal end of the barrel positioned proximally of the port. Each taper pin is received in a respective fastener opening and engages a side of the barrel. A slide assembly and handgun including the compensator are also disclosed.

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.