3results about How to "Avoid accidental breakage" patented technology

The application discloses a portable soil pollution detection tool box, which comprises a tool storage box. The tool storage box is small in overall structure, so that the soil pollution detection tool box is convenient to carry, can be used as a test tube rack, and is easy to open and close. The tool storage box is provided with a shock absorption and buffering structure, so that the test tubes are prevented from being broken accidentally. The tool storage box is provided with a push-pull structure, so that the test tubes are easy to take out. The test tubes are lighter than other detection tools, so that the tool box is convenient to carry. The tool box is provided with a C-shaped clamp and a long belt, so that the tool box can be hung on the body, and it is easy to take down and re-fix the tool box on the body.

Provided are a can lid and an aluminum alloy sheet for can lid, in which even if a recycled aluminum alloy including aluminum UBC as a raw material is used, the amount of Al-Fe-Mn-based compounds and the like is reduced, and the can lid has the properties required for a can lid, such as pressure resistance and scribing strength. The can lid contains an aluminum alloy containing 0.17 to 0.40 mass% of Si, 0.23 to 0.50 mass% of Fe, 0.11 to 0.24 mass% of Cu, 0.5 to 1.0 mass% of Mn, and 0.6 to 2.7 mass% of Mg, and is characterized in that, in a plane of a panel portion defined by a rolling direction and a sheet thickness direction, the total area ratio of Al-Fe-Mn-based compounds and Mg2Si-based compounds is 2.5% or less, and in a sheet thickness central portion of a plane of the panel portion orthogonal to the rolling direction, the area ratio of grains having a circle equivalent diameter of 2 μm or more is 70% or more.

This utility model relates to the field of battery cell cap technology, and discloses a high-safety cylindrical composite cap, including a top cover, an explosion-proof sheet, a sealing assembly, a positive electrode connecting piece, an insulating pad, and an insulating isolation plate and a buffer pad for preventing internal short circuits of the battery cell. The top cover is located at the top, the explosion-proof sheet is located below the top cover and is fixedly connected to the top cover, and the sealing assembly is located below the explosion-proof sheet and fits tightly with the outer shell of the cylindrical battery. This high-safety cylindrical composite cap uses a sealing assembly including a rubber sealing ring and an elastic metal sealing ring. The sealing ring is tightly fitted onto the top edge of the cylindrical battery shell, effectively filling the tiny gaps between the shell and the cap. The sealing ring is located above the sealing ring and fits tightly with the explosion-proof sheet. The elasticity of the metal further enhances the sealing effect, effectively preventing external moisture and impurities from entering the battery, avoiding performance degradation and shortened lifespan due to contamination, and also preventing leakage of electrolyte inside the battery.