Carbon tank without PCV interface

The utility model discloses a carbon tank without a PCV interface, which comprises a tank body (5), a tank cover (18), a PVC control valve (6) and powdered carbon (17), wherein the upper part of the tank body (5) is provided with an adsorption hole (4) and a desorption hole (7); the adsorption hole (4) is communicated with a chamber of the tank body (5); the PVC control valve (6) comprises a valve core (19), a valve cover (20), a spring (15) and a mebrane (16) which are arranged in the middle of the tank body (5); the mebrane (16) is fixed at an upper hole of the tank body (5) by the valve cover (20); the spring (15) is positioned between the valve cover (20) and the mebrane (16); the center of the mebrane (16) is provided with a small circular hole which is communicated between the inside and the outside; a hard joint part in the middle of the mebrane (16) is matched with the outer ring of the valve core (19); and the valve core (19) is communicated with the desorption hole (7). By adopting the structure, th