Three-way reversing check valve

By using buffer components in the three-way reversing check valve, the coordination of elastic members and fasteners is used to avoid direct impact between the ball flap and the valve seat, the problem of damage, depression or deformation of the sealing surface is solved, and the sealing end surface is ensured.

CN222633895UActive Publication Date: 2025-03-18WENZHOU QIANJIN VALVE CO LTD
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Patent Information

Application Number
CN202421526417.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-29
Publication Date
2025-03-18
Estimated Expiration
2034-06-29

AI Technical Summary

Technical Problem

When the existing three-way reversing check valve is in use, the ball valve and the valve seat are violently impacted by the medium or fluid pressure, resulting in damage, depression or deformation of the sealing surface, causing leakage of the sealing end surface.

Method used

A three-way reversing check valve is designed, and a buffer assembly is used to include an abutment panel, an elastic member and a fastener. Through the compression of the elastic member and the expansion and contraction of the fastener, a buffering effect is formed to avoid direct contact between the ball flap and the valve seat.

Benefits of technology

It effectively avoids impacts between the ball flap and the valve seat due to medium or fluid pressure, protects the sealing surface, prevents damage, depression or deformation, and ensures the sealing of the sealing end surface.

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Abstract

The utility model discloses a three-way reversing check valve which comprises a valve body, a valve cover is arranged on the valve body, an outlet flow channel is formed in the valve cover, two symmetrically-arranged inlet flow channels are formed in the valve body, and the outlet flow channel and an inner cavity communicated with the two inlet flow channels are formed in the valve body. The inner cavity is provided with a ball clack used for being in sealing fit with the two inlet flow channels, a buffering assembly is arranged on the side, facing the ball clack, of each inlet flow channel and comprises an abutting panel, an elastic piece and a fastener, the fastener is arranged on the inlet flow channels in a telescopic mode, one side of the abutting panel is connected to the fastener, and the other side of the abutting panel is connected to the elastic piece. Aiming at the problems, the utility model provides the three-way reversing check valve, which can avoid deformation caused by mutual collision of the ball clack and the valve seat under the pressure of a medium, and plays a role in protecting the ball clack and the valve seat.
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