Handcart type switch cabinet valve isolation device

The invention discloses a handcart type switch cabinet valve isolation device, and relates to the technical field of switch cabinets. The cleaning function is achieved; the device specifically comprises a cabinet door installed on a cabinet body, the cabinet door is hinged to one side of the cabinet body, a sealing strip is fixed to the outer wall of one side of the cabinet door, and the size of the sealing strip is matched with that of the cabinet body; besides, a cleaning mechanism is arranged in the cabinet body and comprises a first air cylinder, the first air cylinder is mounted on the inner wall of the top of the cabinet body through a first mounting frame, and a necking ring is arranged on the inner side of the first air cylinder; the fixed pulley is installed on the inner wall of one side of the cabinet body through a pulley yoke. By arranging the cleaning mechanism, when a user opens the cabinet door, a traction rope can be pulled, then a piston is pulled under the guidance of a fixed pulley, the pis