一种牢固卡套式外螺纹接头
By employing a double-beveled ferrule and an internal support structure in the ferrule-type external threaded connector, the problem of sealing failure caused by pipe deformation is solved, achieving higher connection sealing and firmness, and making it suitable for pipe connections of various materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANDMIWAY (SHANGHAI) FLUID SYST CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing compression fittings with external threads are prone to causing pipe deformation when connected to pipes, affecting the sealing effect.
The system employs a double-sloping ferrule structure and an internal support tube design. The rotation of the ferrule nut causes the ferrule's sloping surface to compress the pipe, which, combined with the support of the internal support tube, prevents pipe deformation and achieves both fastening and sealing.
It improves the sealing and firmness of pipe connections, reduces the risk of seal failure caused by pipe deformation, and is suitable for pipes of various materials.
Smart Images
Figure CN224516185U_ABST
Abstract
Claims
1. A box-type pin with a secure ferrule, characterized in that, include: Hollow connector tube (1), ferrule nut (3) and inner side tube body (2); The inner tube (2) is integrally formed on both ends of the hollow connector tube (1), and the ferrule nut (3) is fitted on the inner tube (2) on both sides. The ferrule nut (3) and the inner tube (2) are connected by threads. The inner wall of the ferrule nut (3) has a limiting groove (4) at the outer end, and the ferrule (6) is supported in the limiting groove (4). The contact surface between the inner wall of the inner tube (2) and the outer wall of the ferrule (6) is an inclined surface. The inner wall of the hollow connector tube (1) is integrally formed with a support step (8), and both sides of the support step (8) are connected to an inner support tube body (9). The limiting slot (4) also supports a second card sleeve (5), which is supported on the outside of the first card sleeve (6), and the contact surface between the second card sleeve (5) and the first card sleeve (6) is also an inclined surface.
2. A premium box end fitting according to claim 1, wherein: Both the second (5) and the first (6) card sleeves have a shrinkage groove (7) on one side.
3. A robust compression fitting type external threaded connector according to claim 1, characterized in that: Both the second card sleeve (5) and the first card sleeve (6) are made of plastic.