2results about How to "Appropriate resistance" patented technology

The utility model discloses a production mould of motor shell, including forming mechanism, cooling water adjusting mechanism and adjusting auxiliary mechanism, the forming mechanism includes upper module and bottom module, the cooling water adjusting mechanism includes adjusting pipe and rotating sleeve, the adjusting auxiliary mechanism includes outer tooth ring and damping ring, and the forming mechanism realizes the accurate forming of motor shell through the cooperation of upper module, bottom module, forming block and forming groove, and the design of injection moulding hole through forming block ensures that injection moulding material fills evenly, optimizes injection moulding path, reduces bubble and defect formation, and the combination design of adjusting pipe and rotating sleeve is adopted to cooling water adjusting mechanism, realizes the accurate control to cooling water flow, and the cooperation structure of spin -in block and plugging board can change the flow area of adjusting pipe to adjust the cooling rate, and spin -in block provides constant pressure, ensures that the adjusting system is stable and reliable.

The application provides a damper capable of completely eliminating or effectively reducing the idle stroke of the damper, comprising an inner cylinder, a liquid storage cylinder, a first sealing assembly, a bottom valve assembly and a piston assembly, wherein the piston assembly comprises a piston rod and a piston assembly. When the piston rod is in the maximum stroke state, the liquid level of the working liquid in the inner cylinder and the liquid level of the working liquid in the liquid storage cylinder are flush, and the liquid level of the working liquid in the inner cylinder is at least flush with the lower surface of the piston assembly; when the piston rod is in the maximum stroke state, the volume of the space above the working liquid level in the liquid storage cavity is a first volume, the volume of the space above the working liquid level in the inner cylinder and not occupied by the piston assembly is a second volume, and the part of the piston assembly above the working liquid level is a first part; when the piston assembly is completely pressed into the bottom of the inner cylinder, the volume of the first part below the working liquid level is less than or equal to the sum of the first volume and the second volume.