The invention relates to an all-polymer push-type vacuum nozzle and its material preparation method, aiming to solve the technical difficulty in overall recycling of spring structures of conventional similar products. A spiral slotted hole is formed on the rotating ring inside the outer cover of the vacuum nozzle, and pins of the large ring are inserted into positioning grooves on the inner wall of the outer cover through the spiral slotted hole of the rotating ring. The pump core assembly is fastened and fixed in the central hole of the large ring, and a spring is sleeved on the outer diameter of the valve rod of the pump core assembly. The spring is an all-plastic spring integrally molded with an outer sleeve port, an inner sleeve port and a wave-shaped cylinder. Two ends of the plastic spring abut against the head cap and the large ring respectively; the outer sleeve port is sleeved with rib grooves at the inner bottom of the head cap, and the inner sleeve port abuts against the bottom groove of the large ring. The plastic spring is entirely arranged inside the groove of the large ring.

Area Code: CN

Application Number: CN202010546885.0