Screw-fit pipe fittings

TWM688136UActive Publication Date: 2026-10-01王家智
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Patent Information

Application Number
TW115205017
Authority / Receiving Office
TW · TW
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2026-06-02
Publication Date
2026-10-01
Estimated Expiration
2036-06-01

Smart Images

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    Figure TWG2TB001914406_003
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Abstract

This invention provides a threaded pipe fitting, including a connecting pipe and a threaded pipe. The connecting pipe is mainly composed of a connecting pipe section and an insert pipe section integrally formed along the axial direction. The threaded pipe is sleeved on the insert pipe section. A first threaded portion is formed on the radial outer periphery of the threaded pipe. The connecting pipe is made of a first material, and the threaded pipe is made of a second material. The toughness of the first material is greater than that of the second material, and the rigidity of the second material is greater than that of the first material. A limiting portion is formed on the insert pipe section at one end away from the connecting pipe section. The limiting portion abuts against the threaded pipe, thereby limiting the threaded pipe. A second threaded portion is formed on the radial outer periphery of the limiting portion.
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Claims

1. A threaded pipe fitting, comprising: A connecting pipe assembly mainly consists of a connecting pipe section and an insert pipe section integrally formed along the axial direction. The connecting pipe section is used to sleeve a first pipe body, and the insert pipe section is used to axially insert a second pipe body or a pipeline device. A threaded pipe is sleeved on the insert pipe section, and the radial outer periphery of the threaded pipe forms a first threaded portion, which is used to thread the second pipe body or the pipeline device. The connecting pipe section is made of a first material, and the threaded pipe is made of a second material. The toughness of the first material is greater than that of the second material, and the rigidity of the second material is greater than that of the first material. The insert pipe section forms a restricting portion. One end of the restricting portion along the axial direction constitutes the end of the insert pipe section away from the connecting pipe section, and the other end of the restricting portion along the axial direction abuts against the end of the threaded pipe that is axially away from the connecting pipe section, thereby restricting the threaded pipe along the axial direction. The radial outer periphery of the restricting portion forms a second threaded portion, which is used to thread the second pipe body or the pipeline device.

2. The threaded pipe fitting as described in claim 1, wherein an annular end face is formed between the radial outer periphery of the sleeve section and the radial outer periphery of the insert section, and the threaded pipe abuts against the end face.

3. The threaded pipe fitting as described in claim 2, wherein the threaded pipe extends into the sleeve section through the end face via an embedded portion.