2results about How to "Avoid impact detection" patented technology

The utility model belongs to the field of negative ion detection technology discloses air negative ion automatic observation appearance, including the casing, the inside fixed mounting of casing has negative ion sensor and controller, negative ion sensor sets up two, can alternately use two negative ion sensors all with controller electricity is connected, the side fixed embedding of controller has display screen, display screen and controller electricity is connected, the utility model sets up two alternately usable negative ion sensors, through controller time -sharing switch working condition. When one sensor detects, another can start fan reversal and carry out self -cleaning, avoid single sensor failure and lead to equipment shutdown, satisfy long -term continuous monitoring demand, reduce maintenance influence to monitoring continuity, the reverse convex sealing ring between lower porcelain cover and lower insulating cover is under the spring pressure effect, closely fits lower porcelain cover inner wall and lower insulating cover bottom, effectively prevents air leakage, guarantees the detection airflow stability.

This invention relates to the field of cable testing technology, specifically a cable connection testing device for flame-retardant cable installation, comprising: a base plate; a positioning and guiding mechanism, wherein the positioning and guiding mechanism for positioning and guiding the cable under testing is disposed at the top of the base plate; a testing mechanism, wherein the testing mechanism for testing the surface flatness of the cable is disposed at the top center of the base plate; and a cleaning mechanism; the guiding component in the positioning and guiding mechanism of this device can be freely adjusted according to the cable specifications, enabling better guidance of the cable, while the positioning component can center the cable, ensuring that the cable is in a centered state during testing, thus improving the accuracy of testing; under the action of the transmission component, the cleaning component can rotate synchronously with the guiding component, allowing the cleaning block to rotate and clean, preventing dust and impurities on the cable surface from affecting the testing of the cable surface flatness.