Air valve
AssigneeZhong Shan Smart Plastic Manufacturing Ltd.
InventorShouguo Long
Life of this patent
Estimating the term…
Abstract
Novel air valve includes a valve stem assembly and a storage space provided on one side of the valve stem assembly and used for storing an inflating component; the valve stem assembly includes a valve base and a valve core capable of elastically retactable relative to the valve base; the valve base is provided with an opening, and the bottom of the opening having a core cavity enabling the valve core to expand and contract elastically therein; and vents are disposed in a circumferential direction of the core cavity; the valve core is provided with a sealing block for sealing the opening; and a pressure spring is disposed between the sealing block and the bottom of the core cavity for pressing the sealing block to block the opening.
Claims6
A novel air valve, comprising
- a valve stem assembly and a storage space provided on one side of the valve stem assembly and used for storing an inflating component;
- the valve stem assembly includes a valve base and a valve core capable of elastically retractable relative to the valve base;
- the valve base is provided with an opening/openings, and a bottom of the opening/openings having a core cavity enabling the valve core to expand and contract elastically therein;
- and a vent/vents is/are disposed in a circumferential direction of the core cavity;
- the valve core is provided with a sealing block for sealing the opening/openings;
- and a pressure spring is disposed between the sealing block and a bottom of the core cavity for pressing the sealing block to block the opening/opening,
- wherein:
- an inner diameter of the core cavity is larger than a diameter of the opening/openings, the sealing block includes a first movable block matched with the diameter of the opening/openings and a second movable block matched with the inner diameter of the core cavity, a step is formed between a circumferential outer side of the first movable block and the second movable block, and the step is provided with a sealing ring, and
- a first concave cavity is formed between the second movable block and a bottom of the first movable block, and the core cavity is provided with a second concave cavity, and two ends of the pressure spring are respectively pressed into the first concave cavity and the second concave cavity.
Dependencies are inferred from the claim text.