3results about How to "Quality standards" patented technology

The invention discloses a positive and negative test platform for testing the impact force of a jet device, which comprises a rack, a lower end test tube is horizontally arranged at the lower end of the rack, an upper end test tube which is parallel to the lower end test tube and is completely overlapped with the lower end test tube is arranged at the upper end of the rack, and a test pump is further arranged at the lower end of the rack. A water outlet pipe is mounted at the water outlet end of the test pump and is connected with the lower end test pipe. According to the technical scheme of the invention, by arranging the flange plates with different sizes, the device can adapt to the installation of the jet devices with different sizes and specifications, can test the water flow impact of the jet devices with different sizes and specifications, and is wide in application range, and the disassembly and installation of the jet devices are very convenient.

The utility model relates to a battery field provides a kind of plastic parts, positive pole structure and battery.Plastic parts includes plastic part body, and flow-through groove is formed with on the side of plastic part body towards pole column, flow-through groove is recessed along the thickness direction of plastic part and extends along the radial direction of plastic part body, in the case where seal is missed, flow-through groove is suitable for establishing the fluid passage of helium detection between battery interior and battery exterior.The plastic part establishes the fluid passage of helium detection by flow-through groove in the case where seal is missed, greatly improves the detection ability to the missing condition of battery seal;When seal is missed, helium can quickly escape from battery interior to external detection equipment through flow-through groove, so that detection equipment can rapidly and accurately detect missing condition, thereby effectively avoid the battery of missing seal to flow into market, improve the quality and safety of battery product;Reduce the number of parts and assembly process, reduce production cost and production difficulty.

The utility model relates to investment precision casting technical field discloses a disc type integrated runner frock, include: middle column pipe, first locking bolt, second locking bolt, first positioning pin, second positioning pin, third positioning pin, the slider of middle column pipe frock, the slider of middle column pipe frock sets up two, two the slider of middle column pipe frock passes through first positioning pin coaxial positioning connection. This disc type integrated runner frock realizes positioning and locking through multiple sets of positioning pin and locking bolt, replaces traditional multi -pass welding, and the inner runner is integrally formed with the upper and lower disc runner and middle column pipe, does not need to weld the inner gate and wax mould assembly link alone, and there is no misplacement, deviation risk in the assembly process, and the dismounting operation is simple and quick, reduces the manual labor intensity, promotes the production efficiency of runner production and mould combination, can guarantee the size consistency and stability of integrated runner simultaneously, adapts to the efficient production demand of aero -engine blade casting.