4results about How to "Quickly remove and replace" patented technology

This utility model discloses an adjustable door and window pulley structure, relating to the field of door and window technology. It includes a long, narrow housing with a hollow inner cavity. Within the hollow inner cavity is at least one pulley module. Each pulley module comprises two detachably connected fixed shells, each containing a rotatable pulley. The opposing sides of the two fixed shells each have a guide slope inclined relative to the fixed shell, and each guide slope has an inclined guide groove recessed within it. At both ends of the hollow inner cavity are inclined guide members that can enter the guide grooves. Either guide member is movable, and the housing at the end of the housing near the guide member is also provided with an adjusting member for pressing against the guide member to allow the pulley module to protrude or retract from the housing. This utility model allows for flexible adjustment of the pulley module's extension distance, solving the problems of installation failure or friction, jamming, and noise after installation when the track is uneven.

The utility model provides a flotation machine scraper shaft connecting structure and a flotation machine, the flotation machine scraper shaft connecting structure comprises a scraper shaft unit and a bearing seat unit, the first end and the second end of the scraper shaft unit are each connected with a first coupler, and the first coupler at the first end of the scraper shaft unit is connected with a universal coupler; and the universal coupling and the first coupling at the second end of the scraper shaft unit are connected with the bearing seat unit through the second coupling. The universal coupling is additionally arranged on one side of the scraper shaft unit between every two bearing seat units, and the fixed coupling is additionally arranged on the other side of the scraper shaft unit between every two bearing seat units, so that the problem that the coaxiality of a plurality of bearing seats cannot be found is effectively solved; meanwhile, due to the design, the scraper shaft between every two bearing seat units can be easily disassembled, and the disassembling and assembling efficiency is greatly improved.

This utility model relates to the field of flange hole measurement technology and discloses a differential housing flange hole position measurement device, including an operating table and a detection plate. A connecting seat is provided at the bottom of the fixed base, and the detection plate is fixedly connected to the bottom of the connecting seat. A positioning pin is fixedly connected to the bottom of the detection plate, and multiple detection pins are fixedly connected to the bottom of the detection plate. A prism groove is machined inside the fixed base, and a prism block is inserted into the prism groove. A handle is provided on one side of the fixed base, and a limit pin is fixedly connected to the inner side of the handle. One end of the limit pin is inserted into the prism block. By activating the hydraulic cylinder, the hydraulic cylinder will drive the lifting plate, the horizontal plate, the fixed base, and the connecting seat to move downward. The connecting seat will drive the detection plate to move downward, and the detection plate will drive the positioning pins and detection pins to move downward. By observing whether the positioning pins and detection pins are inserted into all the flange holes, the position of the housing flange hole can be determined.

This utility model discloses a hook assembly and lifting equipment based on anti-disengagement of steel ingot molds, relating to the field of steel ingot mold lifting. The key technical points are: it includes an installation part and an elastic telescopic part located below the installation part. A hook is installed on the telescopic part of the elastic telescopic part. The elastic telescopic part has a high-strength spring and a damper. The effect is that when the hook lifts the steel ingot mold, the shaking and impact forces generated during the lifting process due to starting and stopping inertia and running vibrations are first transmitted to the elastic telescopic part. The high-strength spring in the elastic telescopic part absorbs some energy through its own elastic deformation, reducing the impact force. At the same time, the damper plays a buffering role, effectively dissipating the remaining energy, reducing the vibration amplitude and frequency, thereby reducing the periodic alternating load borne by the connection between the hook and the steel ingot mold, avoiding hook fatigue fracture, preventing relative displacement or disengagement between the steel ingot mold and the hook, and ensuring lifting safety.