3results about How to "Avoid spill contamination" patented technology

This utility model relates to the field of printer consumables technology and discloses a printer drum that is easy to refill with toner. It includes a drum body, with inserts fixedly connected to both sides of the rear upper surface of the drum body. An upper end cover is attached to the outer walls of the two inserts. A disassembly groove is formed on the rear upper surface of the upper end cover, and sliding grooves are formed on both sides of the inner sidewall of the disassembly groove. This utility model uses a quick-release structure composed of a slider, pin, and spring, combined with a lever operation, to achieve quick disassembly and installation of the upper end cover without the need for screwdrivers or other tools. This avoids the risk of stripped screws or damage to the end cover, lowers the operational threshold, and improves operational convenience. The ring vibrator and vibration motor on the outside of the toner tube generate vibration during toner refilling, breaking up clumps of toner without the need for manual tapping, preventing toner spillage and contamination. Simultaneously, the ring structure of the ring vibrator can evenly transmit vibration force, avoiding excessive local vibration that could damage the internal photosensitive components.

The utility model discloses an ultrasonic spin-vibration screen which comprises a spin-vibration screen body, a storage bin is arranged at the top of the spin-vibration screen body through a supporting rod, a machine base is arranged at the lower end of the spin-vibration screen body, the bottom of the storage bin is communicated with the spin-vibration screen body through a feeding port, and a controllable discharging mechanism is arranged on the feeding port. A rotary vibration screen is arranged in the rotary vibration screen body, a discharging port is formed in the portion, on one side above the rotary vibration screen, of the rotary vibration screen body, a lifting machine is arranged on one side of the rotary vibration screen body through a supporting frame and is arranged in an inclined mode, and the upper end of the side, close to the storage bin, of the lifting machine is connected with the top of the storage bin through a guide mechanism. A control panel is arranged on one side of the storage bin and electrically connected with the controllable discharging mechanism. By arranging a series of structures, lifting storage type feeding of the rotary vibration screen equipment is achieved, high-position feeding is convenient, flying dust overflow pollution caused by feeding of an open feeding port is avoided, the size of the feeding port is adjustable, and feeding is accurate, controllable and locked.

The application provides a water spraying cooling mechanism and a laser drilling device. The water spraying cooling mechanism comprises a water tank arranged below a workpiece carrying platform, the workpiece carrying platform being horizontally movable, and the workpiece carrying platform being provided with a lateral opening; a top of the water tank is provided with a recovery opening, the recovery opening being in communication with the lateral opening; a water spraying assembly comprises a water spraying arm, a water spraying column and a driver, one end of the water spraying arm is connected to the driver, the other end of the water spraying arm extends horizontally to the recovery opening and is located between the water tank and the workpiece carrying platform, the water spraying column is arranged at the end of the water spraying arm away from the driver and extends upward, a water spraying opening of the water spraying column is arranged upward, the water spraying arm is provided with a water channel in communication with the water spraying column, and the driver is used for driving the water spraying arm to descend to be opposite to the opening or driving the water spraying arm to ascend to make the water spraying opening close to a workpiece on the workpiece carrying platform. The water spraying cooling mechanism of the application has simple structure and high stability.