一种有强密封性的过滤型液压过渡接头

By designing a hydraulic transition joint with strong sealing, the threaded cover is unscrewed to drive the rubber plug to clean the filter screen of impurities, which solves the problem of frequent disassembly required by traditional joints and improves sealing performance and maintenance efficiency.

CN224516177UActive Publication Date: 2026-07-17ZHEJIANG HENGZHAN MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG HENGZHAN MASCH CO LTD
Filing Date
2025-07-09
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional hydraulic transition joints require frequent disassembly of the fixing sleeve at the end of the oil pipe and connection to the transition joint when the filter screen is clogged, which is complicated and affects the sealing performance.

Method used

Design a filter-type hydraulic transition joint with strong sealing. By unscrewing the threaded cap, the rubber plug can be removed from the connecting pipe, allowing direct cleaning of the filter screen and impurities inside the joint, simplifying the maintenance process and avoiding frequent disassembly of the oil pipe end connection.

Benefits of technology

It improves the sealing performance and maintenance efficiency of the transition joint, avoids wear and tear at the connection points caused by frequent disassembly, and ensures sealing performance and service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

本实用新型涉及液压过渡接头技术领域,具体的说是一种有强密封性的过滤型液压过渡接头,包括接头本体,接头本体内设有过滤网,接头本体上开设有清洁口,接头本体上设有连接管,连接管与清洁口连通,连接管上螺纹连接有螺纹盖,螺纹盖内转动连接有转套,转套内安装有橡胶塞,橡胶塞与连接管、清洁口插接,接头本体的两端的外壁上均安装有第一密封环。通过旋开连接管上的螺纹盖,螺纹盖带动橡胶塞从连接管处取出,即可通过清洁口直接清理过滤网及接头内的杂质,从而简化了维护流程,避免了频繁拆卸油管端部的固定套与接头的连接处造成损耗,从而提升了过渡接头的密封性和维护效率。
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Claims

1. A filter type hydraulic transition joint with strong sealing, comprising a joint body (1), characterized in that: The connector body (1) is provided with a filter screen (3), and a cleaning structure (5) is installed inside the connector body (1). The cleaning structure (5) includes a cleaning port (501). The connector body (1) is provided with a cleaning port (501). The connector body (1) is provided with a connecting pipe (502). The connecting pipe (502) is connected to the cleaning port (501). A threaded cap (503) is threaded onto the connecting pipe (502). A rotating sleeve (504) is rotatably connected inside the threaded cap (503). A rubber plug (505) is installed inside the rotating sleeve (504). The rubber plug (505) is inserted into the connecting pipe (502) and the cleaning port (501). A first sealing ring (8) is installed on the outer wall of both ends of the connector body (1).

2. The filter hydraulic transition coupling of claim 1, wherein: The cleaning port (501) has a trapezoidal cross-section at the end facing the connecting pipe (502), and the rubber plug (505) has a frustum-shaped cross-section at the end facing the cleaning port (501).

3. The filter hydraulic transition coupling of claim 1, wherein: A positioning block (506) is fixedly connected to the outer wall of the rotating sleeve (504), and a positioning groove (507) is provided on the connecting pipe (502). The positioning block (506) and the positioning groove (507) are slidably connected.

4. The filter hydraulic transition coupling of claim 1, wherein: The connector body (1) is provided with a fixing member (10) on the outside, and a connecting rope (508) is fixedly connected to the fixing member (10). The end of the connecting rope (508) is fixedly connected to the rotating sleeve (504).

5. The filter hydraulic transition coupling of claim 4, wherein: A retaining ring (2) is fixedly connected to the inner wall of the connector body (1), and one end of the filter screen (3) abuts against the retaining ring (2).

6. A filter hydraulic transition joint with strong sealing according to claim 5, characterized in that: The connector body (1) is internally threaded with an anti-detachment ring (4), which abuts against the other end of the filter screen (3).

7. A filter hydraulic transition joint with strong sealing according to claim 6, characterized in that: The inner hole of the anti-detachment ring (4) is hexagonal, and the threaded cap (503) is hexagonal.

8. The filter hydraulic transition coupling of claim 6, wherein: One end of the connector body (1) is provided with a first external thread (6), and the other end of the connector body (1) is provided with a second external thread (7).

9. The filter hydraulic transition coupling of claim 1, wherein: The outer wall of the first sealing ring (8) has a beveled structure, and the two ends of the connector body (1) are each equipped with a second sealing ring (9).