2results about How to "Protection from pollution" patented technology

This application provides a zebra crossing marking device for application, relating to the field of zebra crossing construction. This application involves setting a second hollow hexagonal plate and an internally threaded tube on a hollow cotton rope. After the hollow cotton rope is wound up, the internally threaded tube is connected to a first externally threaded tube to seal the first externally threaded tube, thereby preventing powder from seeping out of the first externally threaded tube, reducing powder waste, lowering construction costs, and protecting other tools from contamination by successfully preventing powder seepage, thus reducing maintenance and replacement costs caused by tool contamination.

The utility model relates to the technical field of depilation instruments, and discloses a multifunctional depilation instrument which comprises a cover cylinder, a laser head and a depilation instrument body, fixing rods are installed in the two ends of the depilation instrument body, and the lower end of the laser head corresponds to the interior of the upper end of the depilation instrument body and is fixed by being matched with the fixing rods in an inserted mode. A rectangular laser emitting opening is formed in the upper end of the laser head, if the laser head needs to be replaced and cleaned, the fixing rod slides rightwards to correspond to the vertical sliding groove of the fixing groove and is slowly taken out from the interior of the laser head connecting groove, the upper end of the depilating instrument body is sleeved with a cover cylinder, and two cylindrical power source connecting rods are arranged in the lower end of the depilating instrument body. A sliding plate is slidably mounted in the lower portion of the power connecting rod, the sliding plate seals the charging port through elasticity of a second spring, dust and moisture are prevented from entering the interior to affect the charging efficiency, a display screen and an on-off key are arranged on the front section of the depilating instrument body, and the depilating function and speed are adjusted through the display screen; therefore, the hair removal efficiency is improved.