Electrically fused elbow angle calibration fixture
By designing an angle calibration and fixing device for electrofusion elbows, multi-directional fixing and angle adjustment are achieved, solving the problems of welding offset and non-adjustable angle of electrofusion elbows, improving welding accuracy and construction efficiency, and enhancing the stability and reliability of pipeline connections.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI PENGWEI PIPE IND GRP CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-07-17
AI Technical Summary
Existing electrofusion elbow fixing devices cannot be fixed in multiple directions, which makes them prone to displacement during welding and cannot adjust the welding angle, increasing construction difficulty and error risk.
An electrofusion elbow angle calibration and fixing device was designed, comprising a base plate, telescopic rod, rotating rod, drive rod, clamping plate, and limiting box. The clamping plate can be precisely fine-tuned by the cooperation of the sliding rod and the sliding groove, and the rotating rod position can be locked by the limiting box and the limiting block to adapt to the angle adjustment in different welding scenarios.
To ensure the accuracy of welding positions, reduce displacement caused by welding vibration, improve sealing performance and construction efficiency, reduce error risks in complex environments, and enhance pipeline connection quality and construction stability.
Smart Images

Figure CN224510457U_ABST
Abstract
Claims
1. An electrical fusion bend angle calibration fixture comprising a base plate, characterized by: A telescopic rod is fixedly connected to the top of the base plate, and a horizontal plate is fixedly connected to the top of the telescopic rod. Fixed plates are fixedly connected to both sides of the top of the horizontal plate. A rotating rod is rotatably connected to one side of the fixed plate. One end of the rotating rod extends outside the fixed plate, and a support plate is fixedly connected to the other end of the rotating rod. A drive rod is rotatably connected inside the support plate. A circular plate is fixedly connected to one end of the drive rod. A sliding groove is formed inside the circular plate, and a sliding rod is slidably connected inside the sliding groove. A movable plate is fixedly connected to one end of the sliding rod. A clamping plate is fixedly connected to the top of the movable plate. A limit box is fixedly connected to the other end of the rotating rod. A movable plate is slidably connected inside the limit box. A spring is fixedly connected to one side of the movable plate, and a limit block is fixedly connected to the other side of the movable plate. A limit plate is fixedly connected to one side of the fixed plate.
2. An electrical fusion bend angle calibration fixture as defined in claim 1, wherein: A limiting groove is provided on one side of the limiting plate, and the limiting block is slidably connected inside the limiting groove.
3. An electrical fusion bend angle calibration fixture as defined in claim 1, wherein: The support plate has a movable groove on one side, and the movable plate is slidably connected inside the movable groove.
4. An electrical fusion bend angle calibration fixture as defined in claim 1, wherein: A hand crank is fixedly connected to the other end of the drive rod. A threaded pin is provided on the top side of one side of the hand crank, and one end of the threaded pin passes through the inside of the support plate.
5. An electrical fusion bend angle calibration fixture as defined in claim 1, wherein: The limiting box has a through groove on one side, and the limiting block is slidably connected inside the through groove.
6. An electrical fusion bend angle calibration fixture as defined in claim 1, wherein: A reinforcing plate is fixedly connected to one side of the top of the base plate to increase the stability of the equipment during use.
7. An electrical fusion bend angle calibration fixture as defined in claim 1, wherein: The clamping plate has anti-slip texture on one side, which is used to increase the friction between the clamping plate and the electrofusion elbow.