53results about How to "The overall structure is simple and compact" patented technology

The present disclosure includes a protective sleeve assembly and a battery module, wherein the protective sleeve assembly includes a frame and a terminal fixing plate, a terminal circuit board and a connector port are arranged on the terminal fixing plate, an end of a conduction sheet is connected to the terminal circuit board, the other end of the conduction sheet is in a limiting hole of the terminal fixing plate; the battery module includes a upper cover, a lower cover and a charge-discharge control circuit board, a conduction electrode is arranged on the charge-discharge control circuit board and connected with a battery. When the mobile phone is fixed with the protective sleeve assembly, a special port of the mobile phone is transformed into a general port by the conversion circuit of the terminal circuit board, so it's easy to charge the mobile phone by the general port.

The invention provides an electromagnetic gun. The gun tube is provided with multiple hole pairs in the vertical direction of the axis, and each hole pair is composed of two small holes arranged in the opposite side walls of the gun tube. Each copper coil, capacitors, each photoelectric triode and each light emitting diode are connected to one control circuit board; the photoelectric triode and the light emitting diode are respectively arranged in the two small holes of the hole pair of the gun tube; the copper coil wraps the hole pair of the gun tube; the control circuit board and the gun tube are erected on the capacitors; and the gun tube is internally provided with a bullet. The control circuit board is externally connected to a power supply so as to charge the capacitors. When the bullet moves to the hole pair, the control circuit board controls the capacitors to discharge electricity to the copper coil according to the change due to induction signal shielding, and the cooper coil can generate a strong magnetic field to drive the bullet to accelerate. According to the invention, a synchronization problem of multi-stage coils in an acceleration process is solved, the overheating of the coils can be reduced, and the electromagnetic gun is simple and compact in structure, is convenient to operate, is easy to adjust, is low in cost, and is high in stability and reliability.

The invention discloses a polishing tool, belonging to the field of precision optical surface processing. A rotary type magnetic jet polishing device comprises a bracket, a sleeve, a shell, a motor, a motor frame, an adaptor, a rotating shaft, a bearing component, a sealing component, a sprayer, a sprayer nut, a coil rack, a coil, a magnetic isolation component and the like, wherein the sleeve is fixed in the bracket; the rotating shaft is arranged in the sleeve through the bearing component in a rotating manner and is sealed with the sleeve through the sealing component in a rotating manner; the rotating shaft is fixed to a rotor of the motor through the adaptor; the motor is fixed on the sleeve through the motor frame; the sprayer is fixed at the lower end of the rotating shaft through the sprayer nut; a magnetic isolation cavity and a cavity cover work together to clamp the coil and then the magnetic isolation cavity, the cavity cover and the coil are all together fixed at the lower end of the sleeve through the coil bracket; and the shell is fixed to the sleeve. During working, the motor drives the sprayer to rotate, liquid is sprayed out of the sprayer through an inner passage of equipment and then polishes a workpiece after passing through a magnetic field produced by the electrified coil. A polished spot with an area being larger than that of a spraying hole is obtained by rotary spraying of the specially-shaped sprayer and the magnetic jet flow processing efficiency is effectively improved.

A code lock is revealed. The code lock includes a housing, a return base, a plurality of locking seats, a fixed seat, a moveable seat, a code seat, a plurality of code members and a housing base arranged sequentially from top to bottom. A press button corresponding to each locking seat is disposed on the housing and each locking seat has at least one tooth that locks with a hook of the return base when the press button is pressed to push the locking seat. A stopping block is arranged at the bottom of each locking seat while the code member is set with a code post correspondingly. Moreover, the moveable seat includes a code area and a non-code area for mounting the code member and the code seat has a plurality of C-shaped holes corresponding to the code members. Thereby a simple-structured and easy-operated code lock is formed.

An internally heated roasting oven is composed of machine frame, drive mechanism, transition unit, drum with humidity regulator at both end and heating unit inserted in said drum. Its advantages include high heat efficiency, simple structure, small size, low cost and no environmental pollution.

The invention discloses a polishing tool, belonging to the field of precision optical surface processing. A rotary type magnetic jet polishing device comprises a bracket, a sleeve, a shell, a motor, a motor frame, an adaptor, a rotating shaft, a bearing component, a sealing component, a sprayer, a sprayer nut, a coil rack, a coil, a magnetic isolation component and the like, wherein the sleeve is fixed in the bracket; the rotating shaft is arranged in the sleeve through the bearing component in a rotating manner and is sealed with the sleeve through the sealing component in a rotating manner; the rotating shaft is fixed to a rotor of the motor through the adaptor; the motor is fixed on the sleeve through the motor frame; the sprayer is fixed at the lower end of the rotating shaft through the sprayer nut; a magnetic isolation cavity and a cavity cover work together to clamp the coil and then the magnetic isolation cavity, the cavity cover and the coil are all together fixed at the lower end of the sleeve through the coil bracket; and the shell is fixed to the sleeve. During working, the motor drives the sprayer to rotate, liquid is sprayed out of the sprayer through an inner passage of equipment and then polishes a workpiece after passing through a magnetic field produced by the electrified coil. A polished spot with an area being larger than that of a spraying hole is obtained by rotary spraying of the specially-shaped sprayer and the magnetic jet flow processing efficiency is effectively improved.

An X-ray-generator irradiates X-rays at a subject. The X-ray-detector detects the X-rays that have permeated the subject. The rotating body on which the X-ray-generator and the X-ray-detector are installed rotates around the subject. The rotating body is rotated by the drive part. The power source supplies electrical power to the drive part. The step-down part lowers the voltage of the regenerative electrical power generated at the drive part during the deceleration of the rotating body. The accumulation part charges the lowered electrical power. The step-up part raises the voltage of the electrical power from the accumulation part and supplies electrical power to the drive part.

The invention relates to an arrangement (10) for closing an opening for the input and / or output of notes of a device for handling notes. The arrangement (10) comprises a pivotable shutter element and a rotary solenoid. An armature of the rotary solenoid is connected to the shutter element via a connecting element. In a first position of the armature the shutter element is arranged in a closed position, and in a second position of the armature the shutter element is arranged in an open position.

In a power converting apparatus having a plurality of phases on an AC side and configured to perform conversion between DC power and AC power, a current detector detects currents flowing through a DC source line through which a plurality of phase currents commonly flow. A control unit sets a current detection period and a succeeding current control period in each successive control cycle. Using first gate signals based on reference gate signals for PWM control, the control unit calculates values of the individual phase currents from the first gate signals and the detected currents during the current detection period. Then, during the current control period, the control unit performs PWM control using phase voltage commands generated by correcting phase voltage target values so as to cancel out voltage errors that occur during the current detection period.

Provided is a tandem cone valve capable of avoiding or reducing resistance on a valve switch caused by fluid pressure in a pipeline in the opening or closing stage. The cone valve includes valve rods, valve cores and a valve body. The valve cores include a first valve core and a second valve core. The first valve core and the second valve core are coaxially arranged in a valve core cavity. The outer walls of the valve cores are in the shape of cones; the first valve core and the second valve core are stacked one on the other, the first valve core is provided with a first valve core first flow hole and a first valve core second flow hole which penetrate through the inner wall and the outer wall of the first valve core, and the valve core cavity is provided with a valve core cavity flow hole corresponding to the first valve core first flow hole and the first valve core second flow hole. The cone valve is provided with the second valve core stacked coaxially on the base of the first valve core, and the second valve rod driving the second valve core to rotate is arranged in the first valve rod in a sleeved manner, thus the valve is simple and compact in structure; and the two levels of valve cores can each rotate to open / close the valve level by level, thus reducing momentary resistance when opening and closing a large cone valve.