Abstract: A telescopic hanger assembly includes a housing connected to a handheld electric tool and further includes a hanging component. The hanging component has a first connecting portion and a second connecting portion, the first connecting portion extends into the housing, a vertically arranged mounting groove is arranged in the housing, and the first connecting portion extends into the mounting groove; a first spring for pushing up the first connecting portion is mounted in the mounting groove; a snap-in groove is arranged at a lower end of the second connecting portion, and the second connecting portion enters or leaves the housing as the first connecting portion expands and contracts; the housing is provided therein with an automatic buckling mechanism that buckles and locks the second connecting portion extending into the housing. Through its telescopic structure, the telescopic hanger assembly facilitates the storage of the electric tools.

Abstract: An electrostatic generation device for an atomizer solves the problem of poor spraying effect of the atomizer. When the electrostatic generation device is used, the fan blows air through the water outlet pipe, and part of the airflow passes through the pressure tube into the water tank, continuously increasing the air pressure inside the water tank. The greater pressure forces the liquid inside the water tank into the inlet pipe and along the inlet pipe into the guide tube, spraying out from the guide tube in the direction away from the fan through the water outlet pipe. The liquid is electrified by the charged metal valve core, and the electrostatically charged liquid is sprayed out through the air outlet, forming electrostatically charged atomized particles. The spray can easily adhere to the object being sprayed, resulting in a higher spraying efficiency.

Abstract: A heat gun having a flow guiding arrangement, including: a main body in which an air heating element and a hot air tube are provided, the air heating element including a heating core, which includes a mounting bracket and a heating filament, on the mounting bracket being provided a venting cavity and a heating cavity surrounding the venting cavity, the heating filament being provided in the heating cavity, the flow guiding arrangement being disposed at an end of the mounting bracket facing an air outlet of the hot air tube, on the flow guiding arrangement being obliquely arranged a plurality of air guiding passages, the plurality of air guiding passages being disposed about a center of the flow guiding arrangement, inside the hot air tube being further provided a mixing cavity being disposed between the flow guiding arrangement and the air outlet of the hot air tube.

Abstract: Disclosed is a bidirectional-spin cleaning structure which relates to cleaning equipment, including an inner-race cleaning disc and an outer-race cleaning disc, the inner-race cleaning disc is surrounded by the outer-race cleaning disc, an inner shaft is vertically fixed on the inner-race cleaning disc, an inner-race gear is mounted on the inner shaft, an outer shaft configured like a circular tube and rotatable about a center line of the inner shaft is sleeved outside the inner shaft, the outer shaft is securely attached to the outer-race cleaning disc, and an outer-race gear rotatable together with the outer shaft is mounted on the outer shaft; an autorotation-only transmission gear is engaged on the outer-race gear, a autorotation-only-only idle gear is engaged between the transmission gear and the inner-race gear; the bidirectional-spin cleaning structure further comprises a power mechanism configured to drive the transmission gear to rotate.

Abstract: A spray gun includes a casing, a cup, a spray nozzle, and a pump. The pump is provided in the casing and has a spray chamber in communication with the cup. The cup includes a cup housing and a flexible cup body provided in the cup housing. A venting structure communicating the cup with an outer environment is provided on the pump. The cup housing is provided with a hollow portion, such that the flexible cup body is manually squeezable to expel air inside the flexible cup body out via the venting structure.

Abstract: A key filling method includes transmitting first filling information to a server, the first filling information indicates to a security chip a filling permission of an electronic device; obtaining second filling information that includes a verification public key generated by the server. In accordance with a determination that the electronic device has the filling permission based on the first filling information, the second filling information comprises filling information transmitted by the server to the electronic device; and filling the verification public key into the security chip, the verification public key being used for encrypting information, and a verification private key corresponding to the verification public key being used for decrypting the encrypted information.

Abstract: A data encryption method includes: acquiring target data to be encrypted of a target object and object information corresponding to the target object, the object information including at least one of a face image or an audio signal of the target object; encrypting an object feature corresponding to the object information according to a reference public key, and determining the encrypted object feature as a safety factor of the target data; and encrypting the target data based on the safety factor, to obtain encrypted data corresponding to the target data.

Abstract: Disclosed are a picture encryption method and apparatus, a computer device, a storage medium and a program product. The method includes: acquiring N pictures having a time sequence, N being an integer equal to or greater than 2; performing feature extraction on the N pictures to acquire a picture feature of each of the N pictures; successively performing target prediction on the N pictures according to the time sequence to obtain prediction information of the each of the N pictures, the target prediction referring to a prediction on the each of the N pictures based on status information, and the status information being information which is updated based on picture features of pictures that have been predicted; and encrypting the N pictures based on the prediction information of the each of the N pictures.

Abstract: An electric glue gun includes a housing, a glue tube holder arranged at a front end of the housing, and a push rod disposed on the housing and moveable forward and rearward relative to the glue tube holder. A control board, a main switch, an electric motor and a transmission mechanism are provided inside the housing. The main switch is electrically connected to the control board for controlling power on/off, the electric motor is electrically connected to the control board to drive the push rod to move forward or rearward via the transmission mechanism. The electric glue gun further includes a sensor switch for facilitating control of a forward/rearward movement stroke of the push rod, and the sensor switch is electrically connected to the control board, such that the control board determines whether the push rod is moved to a limit position based on information feedback from the sensor switch.

Abstract: The present disclosure provides a heating core for hot air gun use and a hot air gun. The heating core comprises: a mount support; and a heating wire arranged on the mount support; wherein the heating wire includes a close wound segment on a surface of which an insulating layer is provided, an interval between adjacent heating wires in the close wound segment is D, 0?D?2 mm. The hot gun comprises a housing in which a hot air device producing hot air is provided, the hot air device comprising a heating core; a hot air tube provided at a front end of the housing, inside the hot air tube being disposed the heating core, wherein: the heating core is the heating core for hot air gun use according to any technical solution above.

Abstract: Disclosed is nail gun which fires nails stably, including: a housing, a trigger, an electric motor, a first cylinder, a second cylinder, a crank, a linkage, a nail firing assembly, and a nail supplying assembly, the second cylinder being disposed in the first cylinder, inside the first cylinder being provided a first piston, inside the second cylinder being provided a second piston, the linkage being in transmission connection with the first piston, the electric motor being in transmission connection with the crank via a transmission mechanism and driving, via the linkage, the first piston to make an axial motion in the first cylinder, a circulating air channel being provided between the first cylinder and the second cylinder, the nail firing assembly including a striker which is connected with the second piston.

Abstract: A spray gun includes a machine body, a gun body and a spray cup. A motor is provided in the machine body. A gas exhaust port and a gas intake port communicating with the gun body are provided on a gas outlet passage on the motor. A pressure relief valve is provided at the gas exhaust port and comprises a valve body having a valve cavity. A valve port, a pressure relief port and a mount port communicating with the valve cavity are provided on the valve body. A valve stem and a valve ball rotatable along the valve cavity are provided in the valve cavity. A valve stem spring is provided in the valve cavity to control opening and closing of the gas exhaust port. A gas outlet port is provided on the gas outlet passage. A pressure port is provided on the valve body and communicates with the valve cavity and the gas outlet port.