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.
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
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.
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.
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.
Smart Images

Figure CN224516177U_ABST
Abstract
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).