31results about How to "Impulse" patented technology

The invention relates to the technical field of portable air compressors, in particular to a portable air compressor with a wire winding function, which comprises a shell, an air compressor mechanism, a wire winding device and a power wire. A boss is arranged at a bottom of the shell, clamping holes are arranged on the boss, the air compressor mechanism is arranged inside the outer shell, and the wire winding device is arranged at the bottom of the boss. The wire winding device is pulled out from the boss or pushed into the boss by correspondingly matching with the clamping holes. The power wire is wound on the wire winding device. By the aid of the wire winding device additionally arranged on the portable air compressor, the power wire can be wound neatly and can be used and carried conveniently, the service life of the portable air compressor is prolonged, and the integral appearance and structure of the portable air compressor are attractive. Meanwhile, the power wire can be protected well without being squeezed or scratched, the potential safety hazard of an electricity leakage in use can be eliminated, portability is practically realized, and the service life of the portable air compressor is prolonged.

The permanent magnetic punch includes a yoke iron, a punching head reciprocating up and down inside the yoke iron, and an armature connected to the punching head. The present invention features that the permanent magnetic punch includes also a magnetic driving mechanism to make the yoke iron and the armature to constitute one magnetic loop, and the magnetic driving mechanism is provided with electromagnetic mechanism to apply electromagnetic drive force to the armature and permanent magnet to apply permanent magnetic attraction force to the armature. The present invention is superior to available electromagnetic punch, which has great power consumption and complicated control system.

The invention relates to a closed middle and low pressure water mist sprayer, which comprises a hollow sprayer seat, a spray nozzle, an atomization core and a temperature sensing mechanism, wherein the spray nozzle is provided with a water outlet; the temperature sensing mechanism is capable of automatically starting water spray when temperature exceeds a critical point; a first cavity body is formed in the spray nozzle; the atomization core is arranged in the first cavity body of the spray nozzle; a second cavity body is formed in the atomization core; the side wall of the second cavity bodyis provided with a water flowing hole; the top part of the second cavity body is provided with a straight line-shaped or arc-shaped atomization slot; and the second cavity body, the water flowing hole, the atomization slot and the water outlet are communicated with each other. The closed middle and low pressure water mist sprayer is capable of spraying water mist with even and dense mist drops, asmall grain diameter, high momentum and a wide atomization angle, has an ideal mist spray effect and a good extinguishment effect and has a very important meaning and practical application value for markets of the closed middle and low pressure water mist sprayer which is difficult to obtain the ideal mist spray effect under a middle and low pressure water source at present.

The invention belongs to the field of switch devices, and in particular relates to a switch device movable end assembly and a switch device. The cushioning device is only compressed at the end of the travel of the lower conductive tube to provide resistance to relative movement between the tie rod and the lower conductive tube. The setting of the elastic buffer device increases the movement difficulty of the lower conductive tube at the end of the movement stroke of the lower conductive tube, reduces the impulse of the moving end component, and avoids overshooting or over-closing caused by overshooting during opening or closing. In addition, due to the elasticity The buffer device is only compressed at the end of the movement stroke of the lower conductive tube. Therefore, the setting of the elastic buffer device will not affect the movement process of the lower conductive tube between the closing position and the opening position, so as to ensure the normal operation of the moving end assembly. Switch between closed state and open state.

The invention discloses a permanent-magnet assisted electromagnetic punching machine which comprises a yoke, a punch and an armature, wherein the armature is fixedly connected above the punch; an upper end cover is fixedly connected above the yoke, and a lower end cover is fixedly connected below the yoke; the upper end cover, the yoke and the lower end cover form an accommodating cavity for the punch and the yoke to do reciprocating motion up and down; an upper permanent magnet is fixedly connected below the upper end cover, and a lower permanent magnet is fixedly connected above the upper end cover; and the opposite ends of the upper permanent magnet and the lower permanent magnet share the same polarity. According to the permanent-magnet assisted electromagnetic punching machine, under the condition of the same input power, the resultant force of the downward movement of the punch increases, the downward movement speed of the punch also increases, and the punching force of the punch is more than two times larger than the electromagnetic driving force, therefore, the punch has large impulse and good punching effect. The permanent-magnet assisted electromagnetic punching machine omits the spring return mechanism adopted by the existing permanent-magnet punching machine, is free from the failure caused by the clamping stagnation of the spring, is simple in structure and can work safely and reliably.

The invention provides a pulping equipment with material-liquid separation and secondary air vortex crushing, which mainly includes a feeding device, a vortex crushing device, and a slurry generating device. It is characterized by the separation of material and liquid. First, the air vortex is used to crush the material, and then it is mixed with liquid water to form a slurry. The invention realizes the control and sealing of the feeding amount through the buffer and sealing plate and the spring, realizes the tangential entry of gas and forms a circulation through the air inlet tangent to the outer edge of the bottom of the inner cone cylinder, and through the primary vortex with a certain taper The crushing area and the secondary vortex crushing area with a certain slope realize the double acceleration of the swirling flow, and realize the double screening and anti-clogging of the crushed material through the circular table holes in the primary and secondary filter devices, and realize the material flow through the crushed material conveying pipe. , Liquid mixing and stirring.

Disclosed is a portable emergency evacuation tool in a motor vehicle. The portable emergency evacuation tool is high in starting speed, high in window breaking success rate, small in size, convenient to carry and safe and stable. The portable emergency evacuation tool is formed by a ball handle, a cylinder cover, a safety pin, a screw, a screw spike, a cylinder, a pressure spring, a spring support and a rivet and is characterized in that the ball handle is connected with the upper end of the screw through threads; the screw penetrates the cylinder cover and the pressure spring; the cylinder cover and the cylinder are fixed through the screw spike; the lower end of the screw and the spring support are fixed; the river is embedded at the bottom of the screw; the bottom of the cylinder is provided with a circular hole; a nail point of the rivet extends out of the circular hole; the safety pin penetrates the cylinder cover and the screw.

The invention discloses a gas rocket engine for unmanned aerial vehicles and a design method thereof, which comprises an air intake section, a steady flow chamber and a tail nozzle arranged coaxially along the airflow direction; The high-pressure gas cylinders are connected; the tail nozzle includes a contraction section and an expansion section; the contraction section includes a large contraction arc and a small contraction arc. In the present invention, the gas rocket engine is used as the power propulsion device for the unmanned aerial vehicle to take off, which can realize a larger impulse, and can generate a larger thrust in a shorter time, so that the unmanned aerial vehicle can obtain a larger acceleration, so that the launch platform It is short and small, and can meet the requirements of 10-20m / s take-off speed in a short period of time for high-weight UAVs of 100-300kg. In addition, the gas rocket engine uses high-pressure air as the propellant, and high-pressure air can be obtained through a portable air compressor, so the source of propellant is sufficient and economical and environmentally friendly.

The invention relates to a tweezers cleaning device and a cleaning method, which belong to the technical field of medical equipment cleaning and solve the problems of low efficiency and poor effect of existing cleaning methods. The tweezers cleaning device includes: a motor, a collecting funnel, a cleaning plate, a driving shaft, a driven shaft and a cleaning hole piston; the driven shaft and the cleaning hole piston are both set in the collecting funnel; the top of the collecting funnel is sleeved on the cleaning plate The motor can drive the driving shaft to rotate, and the driving shaft and the driven shaft are coaxially socketed; the driven shaft can penetrate the cleaning plate and can drive the cleaning plate to rotate; the cleaning plate is provided with a cleaning hole that runs through the cleaning plate; the cleaning hole piston and The driven shaft is connected to be able to block the cleaning hole. The invention shortens the time required for soaking the enzyme solution through high-speed rotation, and improves the cleanliness of the tweezers, thereby further sterilizing and sterilizing the tweezers, reducing the damage of the tweezers, and being used for the turnover of tweezers in hospitals.

The hybrid transmission for amphibious vehicles of the invention belongs to the technical field of transmissions for amphibious vehicles and solves the technical problem of long landing time for amphibious vehicles in the prior art. The transmission includes a propeller drive mechanism, a wheel drive mechanism, a gear mechanism and a transmission assembly, wherein: the propeller drive mechanism is used for the power output of the amphibious vehicle to move forward in the water; the wheel drive mechanism is used for the wheels (21 ) power output for traveling on land; the gear mechanism is rotationally connected with the propeller drive mechanism, and is rotationally connected with the wheel drive mechanism through the transmission assembly; when the amphibious vehicle puts down the wheels (21) and lands, the The power output of the wheel drive mechanism is transmitted to the gear mechanism through the transmission assembly, and then transmitted to the propeller drive mechanism through the gear mechanism, so as to increase the power output of the propeller drive mechanism. The invention is used to increase the function of car washing and meet the requirement of short landing time.

The invention provides a compressed air foam-based intelligent fire-fighting device for an externally-floating-top crude oil storage tank. The compressed air foam-based intelligent fire-fighting device comprises fire-fighting cabinets and foam fire-extinguishing pipelines, wherein a compressed air foam system and a fire-fighting linkage controller are arranged inside each fire-fighting cabinet; the compressed air foam system comprises a gas energy storage tank, a mixed foam solution storage tank, a compressed air storage tank and a gas-liquid mixing device; the gas energy storage tank is communicated with the mixed foam solution storage tank through a driving pipeline; the mixed foam solution storage tank is connected with a liquid inlet of the gas-liquid mixing device through the foam solution conveying pipeline; a gas inlet of the gas-liquid mixing device is connected with the compressed air storage tank through a compressed air conveying pipeline; a foam outputting pipeline is connected to an outlet of the gas-liquid mixing device; the fire-fighting linkage controller is fixed to the fire-fighting cabinet and is eclectically connected with electrically controlled switching valves; the foam fire-extinguishing pipelines are circumferentially sequentially laid between the inner wall of the storage tank and the outer edge of a floating plate at intervals; a plurality of closed nozzles are formed at intervals in the length direction; the foam outputting pipelines of the fire-fighting cabinets are communicated with the foam fire-extinguishing pipelines.