35results about How to "Increase launch speed" patented technology

A high-speed electromagnetic nailing gun with a lever, which includes a handle (9), an electromagnetism lever driving device, a ram slideway (3), a muzzle magazine groupware (8). The electromagnetic force is used as the power of the electromagnetic nailing gun, the electromagnetic nailing gun accomplishes nailing by shift-speed driving the ram with the lever (15). It is not necessary for the electromagnetic nailing gun to equip air-pressing accessories, which is convenient to carry, the electromagnetic nailing gun causes little shock and noise when using.

The invention discloses a gaseous propellant fire extinguishing agent for aircraft dry chamber extinguishment. The gaseous propellant fire extinguishing agent is prepared by the following steps: weighing 15-86 parts of solid fuel, 5-50 parts of an oxidizing agent, 1-5 parts of an adhesive, 5-40 parts of a coolant, 5-40 parts of a fire extinguishing agent, and 0.1-2 parts of a lubricant and 0.1-2 parts of a catalyst, uniformly mixing the raw materials, drying, grinding, mixing and preparing. The gaseous propellant fire extinguishing agent disclosed by the invention has the characteristics of being good in stability, high in emission efficiency, high in fire extinguishing efficiency and low in cooling rate. The defects that an existing propellant gas producing agent is bad in stability, high in temperature, bad in fire extinguishing performance and the like are overcome, and the fire extinguishing agent has the very high application prospect in the aircraft dry chamber extinguishment.

The invention discloses a combined asynchronous induction electromagnetic coil emitter and an ignition method thereof. The combined asynchronous induction electromagnetic coil emitter comprises a plurality of sets of multistage coil emitters, a gun barrel and a plurality of connectors. Each multistage coil emitter comprises a multistage driving coil set and a corresponding armature, the multistagedriving coils are sequentially wound outside the gun barrel in the axial direction of the gun barrel, the armatures are sequentially arranged in the gun barrel in the axial direction of the gun barrel, and the adjacent armatures are connected through the connectors. When the combined asynchronous induction electromagnetic coil emitter is not triggered, the armatures are located in the corresponding multistage driving coil sets. After the combined asynchronous induction electromagnetic coil emitter is triggered, the multistage driving coils provide acting force pointing to a gun opening in theaxial direction of the gun barrel for the armatures in the multistage driving coils. According to the combined asynchronous induction electromagnetic coil emitter, propulsive force of different pulsewidths, amplitudes and waveforms can be achieved, the accelerated speed faults of the armatures can be avoided, and therefore acceleration is smoother; meanwhile, stress, the emitting speed and emitting efficiency can be improved; and the combined asynchronous induction electromagnetic coil emitter is more suitable for occasions with higher requirements for thrust precision.

The invention discloses a composite ignition type combustion light gas gun. The composite ignition type combustion light gas gun comprises a drive section, a driven section, a convergence section, anemitting tube and an ignition control system, wherein one end of the drive section is sealed, and the other end of the drive section is connected to the driven section, and a joint is clamped with a diaphragm; the tube body of the driven section is equipped with a pressure sensor; the front end of the convergence section is connected to the driven section, the rear end of the convergence section is connected to the emitting tube, and the joint of the rear end and the emitting tube is clamped with a diaphragm, and an igniter is mounted on a tube body; a shot is placed on a position, close to the diaphragm, in the emitting tube; and the ignition control system comprises a pressure sensor, a charge amplifier, a digital delay pulse generator. The light gas gun utilizes a composite ignition form, adopts mutual action between detonation waves induced by convergence shock wave reflection and detonation waves forcibly detonated by the igniter to generate intense shock waves, then, the intenseshock waves chase after the shot and are reflected, so that shot-bottom pressure is instantaneously increased, and a gas gun system with higher operation efficiency is developed with a lower price.

The invention discloses a tennis ball serving device for physical training, and relates to the technical field of physical training equipment. The device comprises a base, universal wheels, a launching box, a bottom plate and a storage box, the universal wheels are fixed to the four corners of the lower surface of the base, a storage battery is fixed to the lower surface of the base, the bottom plate is arranged on the upper side of the base in a suspended mode, the launching box is arranged on the upper side of the bottom plate, the storage box is arranged on the upper side of the launching box, and a plurality of discharging pipes are inserted into the lower side wall of the storage box at equal intervals from front to back; and the lower ends of the discharging pipes penetrate through the upper side wall of the launching box and then are arranged in the launching box in a suspended mode. The device further comprises lifting mechanisms, a launching mechanism and a pushing mechanism, the lifting mechanisms are arranged at the four corners of the upper surface of the base, the upper sides of the lifting mechanisms are connected with the lower surface of the bottom plate, the launching mechanism is arranged in the launching box, and the pushing mechanism is arranged on the lower side in the launching box. During use, the height of the ball serving device can be adjusted so as to adapt to pitching personnel with different heights, the pitching angle can be changed in the pitching process, and the training effect is improved.

The invention discloses a surrounding-gate-type nanowire transistor. The transistor comprises a cylindrical main body structure, wherein the main body structure comprises a middle portion and two end portions located on the two sides of the middle portion, the middle portion is wrapped with grid electrodes in a surrounding mode and accordingly a surrounding gate is formed, the two end portions serve as a source electrode and a drain electrode respectively, the main body structure is mainly made of silicon and germanium, and the concentration of germanium in the middle portion is larger than the concentration of germanium on the two end portions. Due to the heterojunction structure of the source electrode, the drain electrode and channels, the valence band of the middle channel portion moves upwards, and accordingly the transmitting speed and the mobility ratio of a hole can be improved.

A flechette for use with a gun barrel having a tapered bore with a diameter at the initial bore section greater than the diameter at the emergent bore. The flechette includes a body constructed of a ductile material and having an elongated axis aligned with the axis of the tapered bore when positioned in the load end of the bore. The body also includes a cylindrical bulkhead as well as a bourrelet that are axially spaced from each other along the flechette and have an outside diameter substantially the same as the diameter at the initial bore section of the tapered bore. An elongated boom is attached at the tail end of the body while a penetrator is attached at the forward end of the body. Upon launch, both the bulkhead and bourrelet are compressed radially inward by the bore reduction so that the body is substantially cylindrical upon exit from the discharge end of the bore.

The invention discloses a wireless smoke controller for simultaneously connecting a fire fighting system and an intelligent building system. The wireless smoke controller is characterized in that the wireless smoke controller comprises a control module, a photoelectric smoke sensing module, a power supply module and a wireless transmission module, the photoelectric smoke sensing module and the wireless transmission module are connected to the control module, the control module is also connected to the fire fighting system and the intelligent building system, the fire fighting system and the control system are connected by a fire fighting bus, the intelligent building system and the control system are connected by a wireless module, the power supply module supplies power to the control module and the wireless transmission module, and the photoelectric smoke sensing module provides detection signals for the fire fighting module and the control module. The wireless smoke controller can be used for the fire fighting system and the intelligent building system at the same time and has the advantages of convenient installation, low cost and high practicability.

The invention discloses an intelligent fault diagnosis device of an industrial robot. The intelligent fault diagnosis device comprises an upper box, lower vertical plates, a conveying belt and a sliding chute, wherein the upper box all adopts such a structure that two side walls and the bottom are open, the two lower vertical plates are symmetrically arranged at the bottom end of the upper box, a conveying mechanism is arranged at the bottoms of the lower vertical plates and comprises the conveying belt and the sliding chute, the conveying belt is arranged on the upper surface of the sliding chute, a radio-frequency signal receiving amplifier is mounted on the top surface of the upper box, and an infrared ray scanner and a controller are mounted on the side wall of the radio-frequency signal receiving amplifier. By means of an ultrasonic generator, a transducer and the radio-frequency signal receiving amplifier, the launching speed and the transmission speed of diagnosis signals are increased on the basis of ultrasonic diagnosis, the work efficiency and the accuracy of a diagnosis result are improved, characters and images can be reflected by means of a first display screen and a second display screen, and the diagnosis result is convenient to observe.

The invention discloses a projectile support capturing and projectile support and projectile body separating device for high-speed underwater launching equipment, and belongs to the technical field of ship and ocean engineering. According to the projectile support capturing and projectile support and projectile body separating device, the problems that in an existing high-speed water entry experiment of a high-pressure gas launched projectile body, a launching tube continues to eject high-pressure gas after the projectile body enters water, and the free surface and cavitation evolution characteristics of the water entry phenomenon are greatly influenced are solved, and the problems that in the high-speed water entry launching process of the projectile body, due to collision between a projectile support and a projectile support catcher, the deflection of the projectile body is prone to be caused, a water entry experiment result is influenced, and even launching failure is caused are solved. One end of a spring container is coaxially and fixedly connected with one end of the launching tube, the other end of the spring container is coaxially and fixedly connected with a guider, a projectile support stopper is coaxially installed in the launching tube in a penetrating manner, one end of the projectile support stopper is clamped at one end of the launching tube, the projectile support stopper is of a cylindrical structure, and a projectile body guide tube is sequentially and coaxially installed in the guider and the spring container in a penetrating manner; and one end of the projectile body guide pipe is fixedly connected with the projectile support stopper.

The invention discloses a multifunctional manual repeating crossbow and a stress application method adopting movement time difference. The multifunctional manual repeating crossbow comprises a crossbow body, a pushing plate, a first bow piece and a stress application assembly, the crossbow body comprises a crossbow body middle part, a handheld part and a fixing part, an arrow groove is formed in the top face of the crossbow body middle part, the front end of the arrow groove penetrates through the fixing part, a launching key is arranged on the handheld part, a groove is formed in the fixing part, and fixing plates are arranged on the two sides of the fixing part; the pushing plate is arranged on the arrow groove; the first bow piece is clamped in the groove, and the two ends of the firstbow piece are connected with the pushing plate through elastic pieces; the stress application assembly is arranged at the bottom end of the crossbow body middle part in a sliding mode, the two sides of the stress application assembly are connected with the pushing plate through elastic pieces, and the stress application assembly drives the pushing plate to move along the arrow groove in the process of moving towards the handheld part so as to complete double stress application of the pushing plate and the clamping process of the launching key. The repeating crossbow has the advantages of beingsmall and exquisite in structural design, convenient to operate and high in convenience, practicability and universality, and the ejection force, the ejection speed, the lethality and the ejection precision of the repeating crossbow are improved.

The invention discloses a mobile phone signal enhancement sheet, a preparation method thereof and a mobile phone protective sleeve prepared from the enhancement sheet. The mobile phone signal enhancement sheet is of a sheet-shaped structure, and is characterized in that the enhancement sheet comprises an upper silica gel and graphene mixed layer and a lower silica gel and graphene mixed layer, anda conductive metal material layer is arranged between the upper silica gel and graphene mixed layer and the lower silica gel and graphene mixed layer. The thickness of the enhancement sheet ranges from 0.5 mm to 3 mm. The conductive metal material is copper, aluminum or a mixed material thereof. The enhancement sheet and the protective sleeve can effectively enhance the signal receiving effect ofthe mobile phone and effectively protect the mobile phone.

A bird launcher for hunt training with a door through which a bird is placed in a guide belt in an interior of a housing substantially eliminates injury to the bird. An elastic spring mounted at one end of an operating rod substantially eliminates inadvertent movement of an operating rod thereby preventing a premature launch, thus improving the safety of the operator and the bird. A fixing member is centered on the bird launcher's longitudinal center line and extends to at least one-half of a length of guide rods. The fixing member places pressure in the approximate center of the guide rods thereby preventing the guide rods from opening at the ends and additionally creating a balanced release point when the bird launcher is activated. The balance release point ensures a more stabilized launch so that the bird is released in a desired direction.

The invention discloses an intelligent smoke detection controller with wireless communication, characterized by comprising a control module, a photoelectric smoke detection module, a power module and a wireless transmitting module; both the photoelectric smoke detection module and the wireless transmitting module are connected to the control module, the control module is also connected to a firefighting system and an intelligent building system, the firefighting system is connected to the control system through a firefighting bus, the intelligent building system is also connected to the control system through a wireless module, the power module powers the control module and the wireless transmitting module, and the photoelectric smoke detection module provides detection signals for the firefighting module and the control module. Compared with the prior art, the intelligent smoke detection controller collects jamming signals for the intelligent building system by means of wireless communication, complex wiring is avoided, and field installation is facilitated; the wireless transmitting module combines a radio frequency transceiving circuit and a wireless amplifying circuit, and wireless transmitting power, transmitting speed and transmission stability are improved.