6results about How to "Avoid vacancy" patented technology

This invention provides a current lead connector structure and its welding method. The structure includes a welded tube, a current lead, a superconducting wire, and solder. The welded tube is a variable-diameter tubular structure, with the diameter gradually decreasing from the upper end to the lower end. The first section of the current lead is disposed inside the welded tube, and the second section is disposed outside the welded tube. The first section of the superconducting wire is a bare superconducting wire with its cladding removed, and the second section is a superconducting busbar with its cladding intact. The bare superconducting wire is disposed inside the welded tube and between the welded tube and the current lead, while the superconducting busbar is disposed outside the welded tube. Solder is laid inside the welded tube and completely submerges the bare superconducting wire. By heating and cooling the solder, the bare superconducting wire, the first section of the current lead, and the solder are fused together, thereby achieving the welding of the superconducting wire and the current lead. This invention solves the technical problems of high contact resistance at the solder joints, potential local hot spots, and difficulty in disassembly and assembly in existing current lead connector structures.

The utility model discloses a kind of segmented false eyelashes and false eyelashes, segmented false eyelashes include eyelash silk and stem line, the stem line extends along arc, and the root of several eyelash silk is connected on stem line and is arranged in fan shape. False eyelashes, including the sequentially arranged multiple segmented false eyelashes along arc, and multiple the segmented false eyelashes are designed, the curvature of the stem line of the segmented false eyelashes is compatible with the curvature of the fitted human eye eyeliner. The utility model structure is reasonable, natural feeling is good, and it is beneficial to improve uniformity and density after wearing.

This invention belongs to the field of concrete pavement paving technology, specifically referring to a paving device for cement concrete pavement in highway construction. It includes a paving machine, a material distribution box fixedly connected to one side of the paving machine, side material distribution rollers rotatably connected to the inner walls of both sides of the material distribution box, and swing blades movably connected in a circular array on the side material distribution rollers. Main material distribution rollers are fixedly connected coaxially to the side material distribution rollers on both sides. A turning guide rail is fixedly connected in a linear array to the inner wall of the material distribution box. This invention breaks up internal lumps in the concrete while simultaneously shoveling and scattering the bottom layer of concrete. It also drives the swing blades to rotate and push materials. When encountering unbroken lumps or large stones, impurities are discharged, preventing them from mixing into the paving layer and causing defects such as hollow areas and cracks in the pavement. The side material distribution rollers rotate synchronously with the rotating disc, achieving reciprocating compaction of the concrete pavement edges. After compaction and resetting, the upper concrete is extracted to fill the edge gaps.

This invention belongs to the field of semiconductor equipment technology and provides a semiconductor resin vibration powder dispensing device, including a powder dispensing mechanism, a vibration mechanism, and a support mechanism. The vibration mechanism includes a connecting seat for mounting the powder dispensing mechanism, a vibrator fixedly connected to the connecting seat, a protective cover located on the side of the vibrator away from the connecting seat and elastically connected to the vibrator, a weighing sensor installed inside the protective cover for acquiring the weight information of the material within the powder dispensing mechanism, and a mounting base fixedly connected to the end of the protective cover away from the vibrator and to the support mechanism at the end opposite to the vibrator. The powder dispensing mechanism and the vibration mechanism of this invention cooperate, utilizing the vibration generated by the vibrator to act on the powder dispensing mechanism, causing the resin powder to be evenly spread and stably conveyed under vibration, avoiding local accumulation or gaps, thereby ensuring uniform distribution of resin on the mold surface, significantly improving the consistency of the molded body thickness, and reducing molding defects caused by uneven powder dispensing.

The utility model provides a kind of rolling mill closed cover safety protection device, including outer shell, the inner wall of outer shell is fixed with buffer seat, the inside of buffer seat is embedded with connecting column, the outer wall of connecting column is nested with buffer spring, the one end of connecting column close to outer shell middle part is fixed with touch plate, the inside of buffer seat is embedded with inner frame board, the top of inner frame board is fixed with fixed ring, the inside of inner frame board is embedded with inner baffle, the top of the one end of inner baffle away from outer shell middle part is fixed with operating plate.The utility model can adjust the protection range of rolling mill, it is more convenient to carry out maintenance to rolling mill subsequently, while it can avoid the existence of vacancy between inner frame bottom and rolling mill when inner frame bottom is close to the curve on the outer surface of rolling mill, it can realize the full-closed protection to the outer surface of rolling mill, effectively reduce the protection dead angle of rolling mill, and the safety performance is higher, and the protection effect is better.