| 摘要 |
Disclosed is a structurally improved one-way valve, comprising a valve body (10), a valve core (20) and a return spring (30), wherein the interior of the valve body (10) forms an accommodating cavity (11) with two open ends, a boss (12) protrudes on an inner wall, a through hole (121) is provided on the boss (12), and a first gas hole (13) is provided on a side wall of the valve body (10); the valve core (20) comprises an upper guide part (21), a raised shoulder (22), a middle guide part (23) and a lower guide part (24) successively connected, the valve core (20) movably passes into the through hole (121), an outer wall of the middle guide part (23) is closely attached to the inner wall of the valve body (10), and a second gas hole (231), penetrating from front to back, is provided on the middle guide part (23); and the return spring (30) is sheathed on the outside of the lower guide part (24) and is fixed via a nut (40). The one-way valve solves the problem conventionally in the art of continuous intake of gas not being possible, effectively improves working efficiency, has a simple structure, and effectively lowers production costs. |
