Slide-type switching valve
The slide-type switching valve improves airtightness by using a cylindrical metal sleeve with multiple contact points and a rough surface to enhance adhesion between resin and metal components, addressing pressure-induced delamination.
JP2026102936APending Publication Date: 2026-06-23SAGINOMIYA SEISAKUSHO INC
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- SAGINOMIYA SEISAKUSHO INC
- Filing Date
- 2026-04-01
- Publication Date
- 2026-06-23
AI Technical Summary
Technical Problem
The adhesion between a resin valve body and a metal connection plate in a slide-type switching valve is compromised due to pressure differences, leading to potential airtightness issues and delamination.
Method used
A slide-type switching valve design with a cylindrical metal sleeve and a connecting portion that includes a cylindrical insert portion with multiple contact points in axial, radial, and circumferential directions, enhanced by a rough surface and through-holes, to improve adhesion and airtightness.
Benefits of technology
The design enhances the airtightness between the resin valve body and metal components, preventing delamination and maintaining seal integrity under high-pressure conditions.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026102936000001_ABST
Abstract
The present invention aims to provide a slide-type switching valve that improves the airtightness inside the valve body by enhancing the adhesion strength between the resin valve body and the metal component connecting the valve body and the sleeve. [Solution] The sliding type switching valve comprises a cylindrical valve body, a cylindrical metal sleeve positioned on one axial end of the valve body, and a connecting portion connecting the open end edge of the sleeve to the open end edge of the valve body. The connecting portion includes a cylindrical insert portion 21A that is insert-molded in the axial L direction relative to the valve body. The circumferential surface of the insert portion 21A is provided with a first contact portion S1 that contacts the resin interior of the valve body in a direction in which a force is applied to resist the force that would cause the connecting portion to come out in the axial L direction, and a second contact portion S2 that contacts the resin interior of the valve body in the radial X direction of the valve body.
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