7results about How to "Fast reset" patented technology

The invention discloses a gas-liquid cylinder which comprises a cylinder body, a piston is arranged in the cylinder body, a piston rod with the end extending out of the cylinder body is connected to the piston, a gas chamber and an oil chamber are correspondingly formed in the two sides of the piston in the cylinder body respectively, a gas channel communicated with the gas chamber is formed in the cylinder body, and the oil chamber is communicated with the gas channel. The cylinder body is further provided with an independent oil inlet and an independent oil outlet which are communicated with the oil chamber, and a switch valve is arranged at the oil outlet. When the piston rod extends outwards, the switching valve is closed to close the oil outlet, hydraulic oil is input into the oil chamber from the oil inlet, and gas in the gas chamber is compressed to form pre-pressure; and when the piston rod resets, the switching valve is opened to open the oil outlet, and the hydraulic oil in the oil chamber is discharged from the oil outlet. The reset mechanism has the advantages of being reasonable in structure and high in reset speed.

The utility model discloses a switch cabinet internal multi -freedom degree holder camera device belongs to switch cabinet technical field, including rotating mechanism, rotating mechanism is connected on the cabinet door of switch cabinet through mounting bracket, be provided with multi -freedom degree holder mechanism on rotating mechanism, be provided with camera on multi -freedom degree holder mechanism. The utility model installs rotating mechanism and multi -freedom degree holder mechanism in the cabinet door of switch cabinet, installs the camera on multi -freedom degree holder mechanism, can drive the camera to carry out multi -angle all -round shooting through rotating mechanism and multi -freedom degree holder mechanism, can make the on -duty personnel of monitoring room remote observation in the specific situation in switch cabinet ontology, can observe whether the inside component and the connecting position of electric switch have the trace of burning if there is when the electric switch appears the tripping condition, if not, can adopt the reset mechanism to reset the blade of electric switch, and the reset speed is faster, and it is more convenient to use.

The utility model belongs to the technical field of ship power machinery, and discloses an on-off valve capable of realizing a flexible fuel switching function. Comprising a shell, the periphery of the shell is sleeved with a material returning flange, a first containing cavity allowing a servo oil pilot control valve assembly to move up and down is further formed in the shell, a first communicating channel is formed between the material returning flange and the first containing cavity, and the servo oil pilot control valve assembly moves up and down to control opening and closing of the first communicating channel; the periphery of the servo oil pilot control valve assembly is sleeved with a distribution block, and the distribution block is provided with a conveying channel communicating with the first communicating channel. A feeding flange is arranged at the bottom of the shell and provided with a feeding hole communicated with the conveying channel. Rapid switching between novel fuel supply and diesel fuel supply is achieved, and the system is particularly suitable for high-power medium-low-speed fuel engines.

The present invention discloses an automatic door device for use with a pig house manure cleaning trolley, comprising a door frame, a door panel connected to the top of the door frame through a door shaft, an electromagnet installed on the inner side of the door frame, an iron block that attracts the electromagnet fixed to the edge of the door panel, mounting grooves are respectively provided on the inner and outer surfaces of the door panel, a spring is installed in the mounting groove, the bottom end of the spring is fixedly connected to the bottom end of the mounting groove, the spring is squeezed inwardly when the cleaning trolley contacts the door panel, a contact switch is provided on the top of the mounting groove, compressed air nozzles are respectively installed on the inner and outer surfaces of the door panel, the compressed air nozzle is located above the mounting groove, the contact switch is used to control the on and off of the electromagnet and the opening and closing of the compressed air nozzle, and the spring triggers the contact switch when the spring is pressed down. The present invention can improve the deficiencies of the prior art and improve the reliability of door fence control.

The invention belongs to the technical field of rotor unmanned aerial vehicles, and particularly relates to a vertical take-off and landing fixed-wing unmanned aerial vehicle rotor propeller locking device which comprises a mounting plate, a rotor motor and a rotor propeller which are arranged on a vehicle body. The rotor motors are connected with the rotor propellers through height adjusting mechanisms, and the height adjusting mechanisms are used for adjusting the heights of the rotor propellers when the rotor motors are in a start-stop state; by arranging the height adjusting mechanism, when the starting state and the stopping state of the rotor propellers are converted, the heights of the rotor propellers are adjusted through lift force changes caused by rotating speed changes of the rotor propellers, so that when the rotor propellers are started, the distances between the rotor propellers and the fuselage main body are large, airflow disturbance is facilitated, and the stability of the aircrafts is improved. And when the rotor wing propellers are not used, the rotor wing propellers are gradually close to the fuselage main body under the action of gravity.

The present invention relates to the field of digital printing technology, and discloses a scanning textile digital printing machine, including a frame, the frame including a bottom beam and a support leg, a scanning platform is installed on the bottom beam, the frame is provided with a crossbeam above the scanning platform, an inkjet cartridge is slidably connected to the crossbeam, the scanning platform also includes a U-shaped cavity, a suction fan is installed below the U-shaped cavity, the air inlet of the suction fan is arranged on the bottom surface of the bottom beam, an upper plate is fixed above the U-shaped cavity, and a plurality of suction holes connected up and down are arranged on the upper plate. A lower plate that is slidably connected is arranged below the upper plate, through holes corresponding to the suction holes on the upper plate are arranged on the lower plate, and then the lower plate is fixed on a support frame, the support frame cooperates with the paper feed shaft, and when the paper feed shaft rotates, the support frame retreats to close the suction holes to prevent suction from affecting the advancement of the material, and when the paper feed shaft is stationary, the support frame automatically resets to open the suction holes to improve the scanning flatness.

The present invention relates to the field of fire fighting equipment, and in particular to a bomb-throwing fire-fighting drone for high-rise buildings. The structure of the drone includes a body and blades installed on a support arm of the body. A camera is provided at the front end of the body, and a bottom frame is extended downward from the bottom of the camera to support the camera. A movable bomb thrower is provided between the bottom frames. The bomb thrower includes a locking top frame fixed to the bottom of the body, and mutually nested barrels are provided at the bottom of the locking top frame. A driver is provided between the locking top frame and the barrel. The improved device decelerates a fire extinguishing ball through a reducer, and then a limiter controls the center of gravity of the fire extinguishing ball. The reduced fire extinguishing ball can be quickly adjusted to a position and gathered at the center after each use by clamping and pushing. The pipe diameters of the cylinder formed by the guide sleeve, the bottom cylinder and the top cylinder are inconsistent, so that the fire extinguishing ball can be quickly separated from the limiter when separated, thereby improving the speed of resetting the limiter.