1results about How to "Increase sealing force" patented technology

This application relates to the field of valve technology, and in particular to a pneumatic clamp valve for a robotic vacuum cleaner and the robotic vacuum cleaner thereof. The pneumatic clamp valve includes a main valve body, a diaphragm, and a valve cover. The main valve body has a first through-channel along its axial direction, and an air inlet and an air outlet are provided on the peripheral sidewall of the main valve body. The diaphragm has a second through-channel with an opening along the axial direction of the main valve body. The diaphragm passes through the first channel along the axial direction of the main valve body, and its two ends overlap the two ends of the main valve body, forming an air cavity between the diaphragm and the inner wall of the first channel. The air inlet and the air outlet are connected to the air cavity. The valve cover is installed at the end of the main valve body and has a mounting hole communicating with the second channel. Furthermore, an annular protrusion is provided on the side of the valve cover facing the diaphragm, and the annular protrusion surrounds the circumference of the opening and provides a line seal against the diaphragm. This application improves the sealing performance between the valve cover and the diaphragm by providing an annular protrusion on the side of the valve cover facing the diaphragm.