All-plastic perfume pump and bottle body used therefor
AssigneeNingbo Jinyu Technology Industry Co., Ltd.
InventorsCheng Hang, Xianqiang Zhu
Life of this patent
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Abstract
The present invention discloses an all-plastic perfume pump and a bottle body used therefor, where the pump includes a pump body, a plastic bead is provided in the pump body mounted in a big ring, a spacer is provided in the big ring and sleeved outside the pump body, a port on the bottom of the pump body is connected to a suction tube, a piston is provided inside the pump body and inserted with a valve needle, an upper end of the valve needle is connected to a valve stem, a top opening of the pump body is attached to a connecting lid, an upper end of the connecting lid is provided with a resilient piece sleeved on the valve stem, the valve stem is connected to a pressing cap, the resilient piece is limited by the valve stem and the valve needle.
Claims6
An all-plastic perfume pump comprising a pump body, wherein a plastic bead is provided inside the pump body, the pump body is mounted in a big ring, a piston is provided inside the pump body, a valve needle is inserted into a piston, an upper end of the valve needle is connected to a valve stem, a connecting lid is attached at a top opening of the pump body, a resilient piece is provided at an upper end of the connecting lid and sleeved on the valve stem, and the valve stem and the valve needle are used for supporting and limiting the resilient piece;
- wherein the valve needle is integrally formed, the valve needle comprises a needle body and a sealing ring, an upper end surface of the sealing ring is in a conical shape, the valve needle is inserted into the piston, and then the piston is mounted in the pump body, and a cavity structure is formed at the bottom of the piston and the pump body;
- the valve stem comprises a stem body and a boss, the diameter of the boss is greater than that of the stem body, an inner wall of the stem body is provided with an inner protruding rib, the valve needle is inserted into the stem body, and the inner protruding rib is inserted into an annular groove to fix the valve needle with the valve stem;
- and
- a protrusion is provided in the middle of the resilient piece, the protrusion is an arc surface, a first bevel is provided at a connection between the protrusion and the upper support portion, the first bevel is a conical surface, and the diameter of the resilient piece axially extending from the protrusion to the upper support portion gradually decreases;
- a second bevel is provided at a connection between the protrusion and the lower support portion, the second bevel is an inverted conical surface, and the diameter of the resilient piece extending axially from the protrusion to the lower support portion gradually decreases.
Dependencies are inferred from the claim text.