2results about How to "Effective pickup" patented technology

The invention relates to the technical field of gates, and discloses gate safety detection equipment which comprises a stainless steel sheet metal shell, and a poison explosion detector, a sampling belt conveying system, a poison explosion detection control panel and a certificate identifier which are arranged in the stainless steel sheet metal shell. By optimizing the structural design of the sampling assembly, the sampling belt can make full contact with the surfaces of certificates of different sizes, the trace substance detection requirements of various passing certificates such as identity cards and passports can be met, equipment parameters do not need to be adjusted for different certificates, the adaptation range is wide, and the device is suitable for various public passing scenes.

This utility model relates to a liquid nitrogen tank for retrieving a broken measuring ruler, comprising a liquid nitrogen tank 10 and a measuring ruler 20. The liquid nitrogen tank is provided with a measuring channel 11. The retrieval tool is provided with a retrieval rod 30, and the front end of the retrieval rod 30 is provided with a retrieval claw 31 for clamping the measuring ruler. The retrieval claw 31 extends into the measuring channel 11. The retrieval claw is provided with a first clamping claw 32 and a second clamping claw 33, which fork out from the front end of the retrieval rod. The beneficial effects of this utility model are: the retrieval rod is used to retrieve a broken measuring ruler stuck in the measuring channel; the front end of the retrieval rod is provided with a retrieval claw for clamping the broken measuring ruler; the opening of the retrieval claw can effectively pick up the broken ruler; and the retrieval claw can be well adapted to the structure of the measuring channel, resulting in a high retrieval success rate.