一种高稳定鸭嘴阀

By using the design of limiting protrusions and receiving grooves, combined with inclined contact edges and convex ring groove structures, the problem of position deviation of the duckbill valve under high pressure fluid is solved, achieving a duckbill valve design with high stability and high strength.

CN224516042UActive Publication Date: 2026-07-17WENZHOU XINGYUAN FLUID TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU XINGYUAN FLUID TECH CO LTD
Filing Date
2025-08-26
Publication Date
2026-07-17

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Abstract

本实用新型公开了一种高稳定鸭嘴阀。其技术要点是：包括有相互连接的上阀座与下阀座，所述上阀座与下阀座之间设有空腔，所述上阀座上设有上通孔，所述上通孔与空腔连通，所述下阀座上设有下通孔，所述下通孔与空腔连通，所述空腔内设有鸭嘴阀芯，所述下阀座上设有限位凸起，所述限位凸起环形设置，位于下阀座内，所述限位凸起与下阀座形成容纳槽，所述鸭嘴阀芯包上设有底座，所述底座位于容纳槽内，所述上阀座包括有抵触部和伸入部，所述伸入部插入下阀座内与底座抵触，所述抵触部与下阀座抵触，本实用新型能够介质从下通孔流向上通孔的过程中，介质不直接作用于底座，使得底座位置稳定，避免鸭嘴位置跑偏，结构强度高，使用过程中稳定性高。
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Claims

1. A highly stable duckbill valve, comprising an upper valve seat (1) and a lower valve seat (2) connected to each other, wherein a cavity (3) is provided between the upper valve seat (1) and the lower valve seat (2), the upper valve seat (1) is provided with an upper through hole communicating with the cavity (3), the lower valve seat (2) is provided with a lower through hole communicating with the cavity (3), and a duckbill valve core (4) is provided inside the cavity (3), characterized in that: The lower valve seat (2) is provided with a limiting protrusion (21), which is arranged in a ring and located inside the lower valve seat (2). The limiting protrusion (21) and the lower valve seat (2) form a receiving groove (22). The duckbill valve core (4) is provided with a base (41), which is located inside the receiving groove (22). The upper valve seat (1) includes an abutting part (11) and an inserting part (12). The inserting part (12) is inserted into the lower valve seat (2) and abuts against the base (41). The abutting part (11) abuts against the lower valve seat (2).

2. The high-stable duckbill valve of claim 1, wherein: The inner side of the duckbill valve core (4) is provided with an inclined abutment edge (42), and the outer side of the limiting protrusion (21) is inclined and fits against the abutment edge (42).

3. The high-stable duckbill valve according to claim 1 or 2, characterized in that: The inner side of the limiting protrusion (21) is inclined.

4. The high-stability duckbill valve of claim 1, wherein: The upper side of the base (41) is provided with a first protruding ring (51), and the extension part (12) is provided with a first groove (52), and the first protruding ring (51) is embedded in the first groove (52).

5. The high-stable duckbill valve of claim 1, wherein: The upper side of the base (41) is provided with a second groove (62), and the extension part (12) is provided with a second protruding ring (61), which is embedded in the second groove (62).

6. The high-stable duckbill valve of claim 1, wherein: The upper valve seat (1), lower valve seat (2), and duckbill valve core (4) are all integrally injection molded.

7. The high-stable duckbill valve of claim 1, wherein: The upper valve seat (1) and the lower valve seat (2) are fixedly connected by ultrasonic welding.