| 摘要 |
Disclosed is a perfume pump with an external spring. A valve needle (4), a piston (6), a special-shaped spring (7) and a valve rod (10) of the perfume pump form a valve needle assembly. The valve needle assembly, a pump body (2), a glass ball (3) and an inner plug (9) form a pump body assembly. An aluminium oxide press cap (13), a spray chip (12) and a header cap (11) form a pump head assembly. The piston (6) is limited by a needle head at one end of the valve needle (4), and a needle bar at the other end of the valve needle (4) is inserted into a central hole of the valve rod (10). The external diameter of the valve needle (4) is provided with a water-discharge trough from a ring groove of the valve needle (4) to the needle head. The inner ring of the piston (6) is sealed with the external diameter of the valve rod (10) in a sliding fit manner, and a channel between the water-discharge trough of the valve needle (4) and the piston (6) is open as the valve rod (10), the piston (6) and the valve needle (4) move to the side of the glass ball (3). The structure is rational in design, sealing is good, it is convenient to use and has a good atomizing by pressing effect. |
