一种加高套延长接头

CN224516231UActive Publication Date: 2026-07-17LUAN ZHONGCAI PIPELINE TECH CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: LUAN ZHONGCAI PIPELINE TECH CO LTD
Filing Date: 2025-09-25
Publication Date: 2026-07-17

AI Technical Summary

Technical Problem

The existing extension joints have a fixed and non-adjustable length, which means that multiple joints or different specifications need to be used when connecting pipes, resulting in complicated installation procedures, time-consuming processes, and increased material management costs.

Method used

Design a height-adjustable extension joint, comprising a cylinder, a first joint, an extension mechanism, and a positioning mechanism. The length is adjusted by the extension tube and piston, and precise positioning is achieved by a scale plate and a rotating wheel to ensure connection stability.

Benefits of technology

It enables flexible adjustment based on the axial spacing of the pipe, reducing working time and material costs, and improving the convenience and stability of the connection.

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Abstract

本实用新型涉及延长接头技术领域，且公开了一种加高套延长接头，包括筒体与第一接头，所述筒体的右端固定安装有第二接头，所述筒体的内部设置有延伸机构，所述筒体的外部设置有定位机构。通过设置的延伸管，便于根据待对接管道的轴向间距对第一接头进行移动，从而无需使用多个延长接头对接或更换不同规格的延长接头，节省了工作时间与成本，在将筒体移动至合适的距离后，在两个螺母的配合下，便于对移动后的螺杆与第一接头进行限位，从而避免第一接头发生位移，通过螺母与橡胶圈紧密接触，从而通过橡胶圈的弹性变形增加螺母与第一立块间的法向压力，便于增大螺母的摩擦力，使得螺母不易发生旋转，进一步保证了第一接头的稳定性。

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Claims

1. A high-build sleeve extension joint comprising a barrel (1) and a first joint (2), characterised in that: The right end of the cylinder (1) is fixedly installed with a second connector (3), the inside of the cylinder (1) is provided with an extension mechanism (4), and the outside of the cylinder (1) is provided with a positioning mechanism (5). The extension mechanism (4) includes an extension tube (401), which is fixedly installed at the right end of the first connector (2). The extension tube (401) is slidably installed with the cylinder (1). A piston (402) is fixedly installed at the right end of the extension tube (401). A sealing ring (403) is fixedly installed inside the piston (402). A first upright block (404) is fixedly installed outside the cylinder (1). A screw (405) is fixedly installed at the right end of the first connector (2). A nut (406) is installed on the external thread of the screw (405). A rubber ring (407) is fixedly installed inside the first upright block (404).

2. A high-rise sleeve extension joint according to claim 1, wherein: The first stand (404) has a through hole inside, and the screw (405) passes through the through hole.

3. The extended connector of claim 1, wherein: Two nuts (406) are provided, and the two nuts (406) are respectively provided on the left and right sides of the first upright block (404).

4. The high-rise sleeve extension joint of claim 1, wherein: The positioning mechanism (5) includes a second stand (501), which is fixedly installed on the outside of the cylinder (1). A stud (502) is installed on the internal thread of the second stand (501). A pressure block (503) is fixedly installed on the end of the stud (502) near the cylinder (1), and a rotating wheel (504) is fixedly installed on the end of the stud (502) away from the pressure block (503). A scale plate (505) is fixedly installed on the right end of the first connector (2).

5. A high-rise sleeve extension joint according to claim 4, wherein: The second upright block (501) has a through groove at the position corresponding to the scale plate (505), and the scale plate (505) is slidably installed in the through groove.