一种抗拉连接的燃气管
By using a combination structure of annular plate, telescopic cylinder and anti-rotation fixing block at the gas pipeline connection, the problems of tensile strength, torsion resistance and adaptability to dynamic working conditions of gas pipelines are solved, achieving stable connection and high tensile strength performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN QIANWEI ESHA VALVE CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-17
AI Technical Summary
Existing gas pipe connection structures are deficient in tensile strength, torsional strength, and adaptability to dynamic working conditions, leading to loosening, leakage, and fatigue fracture at the connection points.
It adopts annular plates and telescopic cylinder structures at the ends of the left and right gas pipes, and achieves multi-level locking and elastic buffering through the combination of anti-rotation fixing blocks, connecting fixing rods and telescopic springs, thereby enhancing tensile and torsional resistance.
It enables stable connection of gas pipelines under complex working conditions, prevents loosening and leakage, improves tensile strength and environmental adaptability, and reduces installation difficulty and component fatigue wear.
Smart Images
Figure CN224516222U_ABST
Abstract
Claims
1. A gas pipe with a tensile resistant connection comprising a left gas pipe (1), a right gas pipe (2), characterized in that, The left gas pipe (1) is fixedly provided with a left annular plate (3), and an annular groove (30) is provided on the left annular plate (3). Two fixing blocks (4) are symmetrically arranged inside the left gas pipe (1). The right gas pipe (2) is fixedly provided with a right annular plate (5), and the inner side of the right annular plate (5) is connected to the telescopic cylinder (50) by a telescopic spring (51). The telescopic cylinder (50) is provided with an anti-rotation fixing block (520) at the end, and the upper and lower sides of the telescopic cylinder (50) are provided with a connecting fixing rod (6) that can be inserted into the annular groove (30). When the left and right gas pipes are connected, the anti-rotation fixing block (520) is embedded in the fixing groove (40) of the fixing block (4) to lock the rotational degree of freedom. At the same time, the connecting fixing rod (6) rotates and slides along the annular groove (30) to the locking position, and the telescopic spring (51) provides a continuous pre-tightening force to resist the axial tension.
2. A pull resistant connected gas pipe according to claim 1, characterised in that, The fixing blocks (4) are symmetrically arranged on the upper and lower sides of the inner wall of the left gas pipe (1). Their height is equal to the annular width of the left annular plate (3). Each fixing block (4) has a fixing groove (40) on the side away from the left annular plate (3). The opposite surfaces of the two fixing blocks (4) are provided with limiting guide grooves (41) to guide the anti-rotation fixing block (520) to be inserted and limit radial displacement.
3. A pull-resistant connected gas pipe according to claim 2, characterised in that The annular groove (30) consists of two independent channels, each with a length that is 1 / 4 of the circumference of the left annular plate (3), and is opened along a spiral trajectory in the same direction. The annular groove (30) has a wide groove section in the area corresponding to the fixed block (4) so that the end limiting ball (60) of the connecting fixed rod (6) can quickly enter. The remaining area is a narrow groove section that is narrow at the top and wide at the bottom, forming a radial constraint on the limiting ball (60).
4. A pull resistant connected gas pipe according to claim 1, wherein, One end of the telescopic spring (51) is fixed to the telescopic cylinder (50), and the other end is fixed to the right annular plate (5), so that the anti-rotation fixing block (520) continuously presses against the fixing groove (40) and absorbs the axial displacement stress of the pipeline.
5. A pull resistant connected gas pipe according to claim 1, wherein, The anti-rotation fixing block (520) is connected to the telescopic cylinder (50) via an elastic bent edge (52), which allows the anti-rotation fixing block (520) to finely adjust its angle to fit the fixing groove (40) and provide torsional cushioning during vibration.
6. A pull resistant connected gas pipe according to claim 3, wherein, The end of the connecting fixing rod (6) is provided with a limiting ball (60). The diameter of the limiting ball (60) is greater than the upper opening width of the narrow groove section of the annular groove (30). When the limiting ball (60) rotates to the narrow groove section, the groove wall, which is narrow at the top and wide at the bottom, locks it axially, forming a tensile anchor point.