Rocking type free closure concrete funnel

The utility model discloses a rocking type free closure concrete funnel which comprises a funnel tank body which is arranged on a support. Hanging points and reinforcing ribs are arranged on an external side face of the funnel tank body. The rocking type free closure concrete funnel is characterized in that a funnel port is arranged at the lower end portion of the funnel tank body, and a closure device is arranged on the funnel port. As improvement, the closure device comprises a hand rolling wheel, the hand rolling wheel is connected with a power-transmission screw rod through a steering nut, the power-transmission screw rod is connected with a switch shaft in a transmission mode through a universal coupler, and the switch shaft is connected with a switch arranged on the funnel port in a transmission mode. Due to the fact that the switch is arranged on the funnel port, and the switch is controlled by the hand rolling wheel, free and high-efficiency closure of concrete is achieved, a large amount of time and