4results about How to "Tight and stable" patented technology

The utility model discloses a kind of clamp head structures for steering knuckle automatic feeding and discharging, including clamp top plate, the bottom surface of clamp top plate is fixedly connected with center pole, center pole is fixedly connected with several short arc rods by several connecting radial rods, several short arc rods are fixedly connected with short shaft, short shaft is rotatably connected with abutment rod;Top rod is slidably connected with the center pole, and the bottom end of top rod is fixedly connected with conical shell;Telescopic component is provided on clamp top plate, and telescopic component is connected with top rod to control the sliding of top rod on clamp top plate;Several abutment rods are located inside conical shell.The clamp head structure utilizes the bottom end of abutment rod to expand outward by conical shell up-down movement, to realize the abutting of the inner side wall of steering knuckle upper end seat or external connector, to make the feeding and discharging of steering knuckle more smooth, efficient, structure is simple, degree of automation is high, suitable for application under steering knuckle feeding and discharging working condition.

The utility model relates to the technical field of motorcycle frames, in particular to a battery pack stable installation frame structure of a new energy motorcycle, which comprises a frame main body, a fixed support plate is welded on the frame main body, a fixed box is fixed on the fixed support plate, and a battery pack is arranged in the fixed box. Pushing assemblies used for limiting and fixing the battery assembly are arranged on the periphery of the inner wall of the fixing box and comprise movable pushing plates arranged on the inner side of the fixing box and driving pieces used for driving the movable pushing plates to be tightly attached to the outer wall of the battery assembly. The movable push plate can be driven to limit and fix the battery assembly from four directions by operating the sliding plate, so that the problem of tedious disassembly and assembly in an existing bolt fixing mode is solved, the efficiency of assembly and disassembly of the battery assembly is greatly improved, daily maintenance, replacement or charging operation is facilitated, and meanwhile, the battery assembly is convenient to disassemble and assemble. The sliding insertion plate is clamped into the locking groove under the action of the connecting spring, so that the sliding plate can be quickly limited, and the movable push plate is ensured to stably abut against the battery assembly.

The utility model relates to the field of composite pipe production, and particularly discloses a multi-layer co-extrusion composite pipe production device which comprises a machine body and two sets of cutting wheels arranged below the machine body and used for cutting two sets of pipes, the two sets of cutting wheels are symmetrically arranged, and a supporting frame is fixedly connected to the machine body; a first electric telescopic rod is fixedly connected to the supporting frame, a pressing plate is fixedly connected to the telescopic end of the first electric telescopic rod, a cutting groove matched with the cutting wheel is formed in the pressing plate, sliding grooves are formed in the two sides, parallel to the supporting frame, of the machine body, and two sets of locking plates are arranged on the sliding grooves in a sliding mode; the supporting frame comprises two sets of stand columns which are mutually stacked, and the machine body is provided with a driving mechanism used for driving the two sets of locking plates to be close to the two sets of stand columns correspondingly to clamp and fix the two sets of pipes. The pipe cutting device has the effects of preventing the pipes from shaking during cutting and improving the production efficiency of the pipes.

The utility model discloses a screw tap easy to take out after being broken, which comprises a screw tap handle part and a screw tap blade part arranged on the screw tap handle part, the screw tap handle part and the screw tap blade part are internally provided with mounting holes, the mounting holes are internally provided with first abutting mechanisms, the abutting mechanisms are used for abutting against an unscrewing piece, and the unscrewing piece can be taken out easily through the first abutting mechanisms and the like. According to the technical scheme, when the unscrewing pieces in different shapes are inserted into the mounting holes, the unscrewing pieces can abut against the unscrewing pieces, broken screw taps can be easily taken out from the different unscrewing pieces, universality and compatibility are improved, in addition, through the limiting mechanism and the like, when the abutting block abuts against the unscrewing pieces, the moving disc is prevented from rebounding, and abutting of the abutting block is more stable.