2results about How to "Comfortable use environment" patented technology

A motorcycle helmet with a detachable, split-type ventilation valve assembly includes a helmet body with a mounting position. The ventilation valve assembly includes a ventilation valve mounted on the mounting position, which is connected to a mounting hole in the mounting position via a detachable component. The detachable component includes a insert post on the ventilation valve and a pin movably inserted into the insert post. The insert post has a hole extending inward from its end face in the middle, and two outwardly extending rods on either side of the hole on the end face of the insert post. The outer curvature of the two rods matches the outer curvature of the insert post, and one of the rods has a hook structure on its outer side. The detachable, split-type ventilation valve assembly design allows the ventilation valve to be connected to the mounting position on the helmet body via the detachable component. When cleaning is required, the user can easily remove the pin and move the rods to quickly remove the ventilation valve from the mounting position, effectively removing accumulated dirt and bacteria.

This utility model relates to the field of curtain machine technology and discloses a positioning mechanism for a curtain machine. The positioning mechanism is mounted on a movable body on a curtain track. The positioning mechanism includes a suspension part and two sets of longitudinal pressure rollers. The suspension part is a roller rotatably mounted on the movable body and is suspended from the curtain track. The longitudinal pressure rollers are mounted on the movable body and configured to abut against the curtain track upwards under elastic force. The two sets of longitudinal pressure rollers are positioned at a height difference from the suspension part, and the two sets of longitudinal pressure rollers are located in front of and behind the suspension part along the length of the guide rail body, so that the suspension part and the two sets of longitudinal pressure rollers are triangularly distributed. The two sets of longitudinal pressure rollers and the suspension part clamp the curtain track longitudinally, thereby limiting the up-and-down swaying of the movable body, greatly enhancing the stability of the movable body on the curtain track, enabling the movable body to operate smoothly and steadily, and ensuring the reliability of the curtain opening and closing operation.