Push-type blood collection needle

A push-type blood collection needle, comprising a housing having an accommodating cavity therein, a rear cover and a needle body disposed in the accommodating cavity, wherein the rear cover is movably disposed on the housing, the rear cover has a supporting leg extending into the accommodating cavity, the needle body is provided with a rib, the accommodating cavity is internally provided with a projecting part that cooperates with and blocks the bottom of the rib, the supporting leg is provided with a stopper that cooperates with and blocks the side wall of the rib, and an elastic member is disposed between the needle body and the rear cover;

• wherein the push-type blood collection needle is configured that after the rear cover is pressed downward, the needle body moves the rib relative to the projecting part under an action of the elastic member, and after the stopper of the supporting leg moves below the rib and no longer abuts against the rib, the needle body continues to move the rib relative to the projecting part under the action of the elastic member until the rib is separated from the projecting part.