A high-sealing hydraulic hose connector

By designing the port body and connector body, and combining the limiting ring, sealing disc and anti-loosening components, the loosening and sealing problems of hydraulic connectors under high pressure and vibration conditions are solved, realizing rapid installation and stable connection, and improving the operating efficiency and safety of the hydraulic system.

CN224454055UActive Publication Date: 2026-07-03HENAN EARL HYDRAULIC TECH DEV CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN EARL HYDRAULIC TECH DEV CO LTD
Filing Date
2025-09-30
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional hydraulic joints are prone to loosening under high pressure and vibration conditions, have poor sealing performance, and are cumbersome to install, affecting the normal operation and safety of the hydraulic system.

Method used

The design incorporates a port body and a connector body, combined with a limiting ring, a sealing disc, and an anti-loosening component. It achieves a quick screw-on connection through the engagement of a nut and an internal thread, and forms a stable locking structure through a special-shaped anti-loosening block and a limiting block, ensuring a secure connection of the connector under complex working conditions.

Benefits of technology

It achieves high sealing performance and stability of the joint under high pressure and vibration conditions, simplifies the installation process, and improves connection efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224454055U_ABST
    Figure CN224454055U_ABST
Patent Text Reader

Abstract

This utility model discloses a high-sealing hydraulic hose connector, belonging to the field of hydraulic connector technology. It includes a port body and a connector body. A fixing pipe is fixedly connected to the lower end of the port body, and the surface of the fixing pipe is provided with external threads. A connecting pipe is connected to the upper end of the connector body, and a limiting ring is sleeved on the surface of the connecting pipe. A nut is fixedly connected to the upper end of the limiting ring, and the nut has internal threads adapted to the external threads. Anti-detachment components are fixedly connected to both sides of the connector body, and upper connecting blocks are fixedly connected to both sides of the port body. This utility model achieves rapid screw-on connection by designing the connector body, reducing installation difficulty and improving installation efficiency. By setting the anti-detachment components, the device can ensure a firm connection of the connector even under complex working conditions such as high pressure and vibration in the hydraulic system, preventing accidental separation.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic connector technology, and in particular to a high-sealing hydraulic hose connector. Background Technology

[0002] Hydraulic hose fittings are key components in hydraulic systems that connect hoses to equipment ports. Their sealing performance and connection reliability directly affect the working efficiency and safety of the entire hydraulic system.

[0003] Traditional hydraulic joints rely mainly on thread tightening for sealing and fixing. Under complex working conditions such as high pressure and vibration, the joints are prone to loosening, affecting the normal operation of the hydraulic system and posing safety hazards. In addition, the installation process of some hydraulic hose joints is cumbersome and the installation efficiency is low. In order to solve the above problems, this utility model provides a high-sealing hydraulic hose joint. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-sealing hydraulic hose connector.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-sealing hydraulic hose connector includes a port body and a connector body. A fixing pipe is fixedly connected to the lower end of the port body, and the surface of the fixing pipe is provided with external threads. A connecting pipe is connected to the upper end of the connector body, and a limiting ring is sleeved on the surface of the connecting pipe. A nut is fixedly connected to the upper end of the limiting ring, and the nut is provided with internal threads that are compatible with the external threads. Anti-detachment components are fixedly connected to both sides of the connector body, and upper connecting blocks are fixedly connected to both sides of the port body.

[0007] As a further improvement of this utility model, the anti-detachment component includes a lower connecting block fixedly connected to both sides of the connector body. The lower connecting block has a sliding groove inside, and a movable rod is movably connected inside the sliding groove. The upper connecting block has an irregular anti-detachment groove inside, and an irregular anti-detachment block adapted to the irregular anti-detachment groove is fixedly connected to the upper end of the movable rod.

[0008] As a further improvement of this utility model, a limit block is fixedly connected to the lower end of the movable rod.

[0009] As a further improvement of this utility model, a sealing disc is fixedly connected to one end of the fixed tube and the connecting tube respectively. The diameter of the sealing disc is larger than the inner diameter of the limiting ring. The limiting ring is movably sleeved on the surface of the connecting tube. The diameter of the internal thread is larger than the diameter of the sealing disc.

[0010] As a further improvement of this utility model, a sealing gasket is provided on the opposite side of each of the two sealing discs.

[0011] As a further improvement of this utility model, a reducing pipe is fixedly connected to the lower end of the connector body, and a rubber hose body is fixedly connected to the lower end of the reducing pipe.

[0012] The beneficial effects of this utility model are:

[0013] By designing the connector body, the hydraulic hose connector can quickly engage with the external thread of the fixed pipe and the internal thread of the connecting pipe through the engagement of the nut and the internal thread of the connecting pipe. At the same time, the limiting ring is movably connected to the surface of the connecting pipe, and the size design of the sealing disc diameter, the inner diameter of the limiting ring, and the inner thread diameter of the nut ensures that the sealing disc can fit smoothly without complicated alignment operations, reducing installation difficulty and improving installation efficiency.

[0014] By setting up an anti-detachment component, during use, the irregularly shaped anti-detachment block at the upper end of the movable rod passes through the irregularly shaped anti-detachment groove of the connecting block on the port body. By rotating the movable rod, the irregularly shaped anti-detachment block and the irregularly shaped anti-detachment groove form a special locking structure, which effectively restricts the relative displacement between the port body and the connector body. The limiting block at the lower end of the movable rod prevents it from falling out of the groove, ensuring the stability of the anti-detachment structure. Even under complex working conditions such as high pressure and vibration in the hydraulic system, it can ensure a firm connection of the connector and avoid accidental separation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a high-sealing hydraulic hose connector proposed in this utility model.

[0016] Figure 2 This is a schematic diagram showing the disassembly structure of a high-sealing hydraulic hose connector proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the main body of a high-sealing hydraulic hose connector proposed in this utility model.

[0018] In the diagram: 1. Port body, 2. Connector body, 3. Fixing pipe, 4. External thread, 5. Connecting pipe, 6. Limiting ring, 7. Nut, 8. Internal thread, 9. Upper connecting block, 10. Lower connecting block, 11. Movable rod, 12. Irregular anti-detachment groove, 13. Irregular anti-detachment block, 14. Limiting block, 15. Sealing disc, 16. Sealing gasket, 17. Reducing pipe, 18. Hose body. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figures 1-3 A high-sealing hydraulic hose connector includes a port body 1 and a connector body 2. A fixing pipe 3 is fixedly connected to the lower end of the port body 1. The surface of the fixing pipe 3 is provided with an external thread 4. A connecting pipe 5 is connected to the upper end of the connector body 2. A limit ring 6 is sleeved on the surface of the connecting pipe 5. A nut 7 is fixedly connected to the upper end of the limit ring 6. The nut 7 is provided with an internal thread 8 that matches the external thread 4. Anti-detachment components are fixedly connected to both sides of the connector body 2. Upper connecting blocks 9 are fixedly connected to both sides of the port body 1.

[0021] In this utility model, the anti-detachment component includes lower connecting blocks 10 fixedly connected to both sides of the connector body 2. The lower connecting blocks 10 have a sliding groove inside, and a movable rod 11 is movably connected inside the sliding groove. The upper connecting block 9 has an irregular anti-detachment groove 12 inside. An irregular anti-detachment block 13 adapted to the irregular anti-detachment groove 12 is fixedly connected to the upper end of the movable rod 11. A limit block 14 is fixedly connected to the lower end of the movable rod 11. The movable rod 11 cooperates with the irregular anti-detachment groove 12 of the upper connecting block 9. After the irregular anti-detachment block 13 passes through the irregular anti-detachment groove 12 and rotates, a firm locking structure can be formed to prevent the connector from accidentally separating during operation. The limit block 14 can effectively limit the stroke of the movable rod 11 to prevent it from coming out of the sliding groove, ensuring the stability and reliability of the anti-detachment component.

[0022] A sealing disc 15 is fixedly connected to one end of the fixed pipe 3 and the opposite end of the connecting pipe 5. The diameter of the sealing disc 15 is larger than the inner diameter of the limiting ring 6. The limiting ring 6 is movably fitted onto the surface of the connecting pipe 5. The diameter of the internal thread 8 is larger than the diameter of the sealing disc 15. A sealing gasket 16 is provided on the opposite side of the two sealing discs 15. The diameter of the sealing disc 15 is designed to be larger than the inner diameter of the limiting ring 6, so that during the connection process, the sealing disc 15 can pass smoothly through the limiting ring 6 and fit against the other sealing disc 15. The limiting ring 6 can move flexibly on the surface of the connecting pipe 5, which is convenient for adjusting the position when the nut 7 is screwed on. The diameter of the internal thread 8 is larger than the diameter of the sealing disc 15, ensuring that the screwing on the nut 7 will not obstruct the sealing disc 15. The sealing gasket 16 can fill the small gap between the two sealing discs 15, enhance the sealing effect, and effectively prevent hydraulic oil leakage.

[0023] The lower end of the connector body 2 is fixedly connected to a reducing pipe 17, and the lower end of the reducing pipe 17 is fixedly connected to a hose body 18. The reducing pipe 17 serves as a transition connection, which can adapt to hose bodies 18 with different pipe diameters, improve the versatility of the connector, ensure the stability of the entire hydraulic pipeline connection, and meet the usage requirements under different working conditions.

[0024] In use, the fixing tube 3 at the lower end of the port body 1 is first aligned with the connecting tube 5 at the upper end of the connector body 2 for docking. Since the fixing tube 3 has an external thread 4, and the nut 7 fixed to the upper end of the limiting ring 6 fitted onto the surface of the connecting tube 5 has a matching internal thread 8, and the diameter of the internal thread 8 is larger than the diameter of the sealing disc 15, rotating the nut 7 allows the fixing tube 3 and the connecting tube 5 to smoothly engage and approach each other. During engagement, the sealing discs 15 at opposite ends of the fixing tube 3 and the connecting tube 5 gradually come into contact. Because the diameter of the sealing disc 15 is larger than the inner diameter of the limiting ring 6, and the limiting ring 6 can move on the surface of the connecting tube 5, it ensures that the sealing discs 15 can fit tightly without obstruction. Simultaneously, the sealing gaskets 16 on the opposite sides of the two sealing discs 15 further enhance the sealing effect, preventing hydraulic oil leakage.

[0025] During the docking operation, the movable rod 11 in the inner groove of the lower connecting block 10 on both sides of the connector body 2, with the irregular anti-detachment block 13 at its upper end passing through the irregular anti-detachment groove 12 inside the upper connecting block 9 on both sides of the port body 1, then rotates the movable rod 11 so that the irregular anti-detachment block 13 and the irregular anti-detachment groove 12 form a stable anti-detachment structure, preventing the connector from accidentally separating during the operation of the hydraulic system. The limiting block 14 at the lower end of the movable rod 11 plays a role in limiting the stroke of the movable rod 11, preventing it from coming out of the groove. Finally, the reducing pipe 17 at the lower end of the connector body 2 is connected to the hose body 18, completing the high-sealing connection and stable transmission of the entire hydraulic hose system.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high sealing hydraulic hose coupling comprising a port body (1) and a coupling body (2), characterized in that, The lower end of the port body (1) is fixedly connected to a fixing tube (3), the surface of the fixing tube (3) is provided with an external thread (4), the upper end of the connector body (2) is connected to a connecting tube (5), the surface of the connecting tube (5) is fitted with a limiting ring (6), the upper end of the limiting ring (6) is fixedly connected to a nut (7), the inside of the nut (7) is provided with an internal thread (8) that matches the external thread (4), both sides of the connector body (2) are fixedly connected to anti-detachment components, and both sides of the port body (1) are fixedly connected to an upper connecting block (9).

2. The high sealing hydraulic hose coupling joint according to claim 1, wherein, The anti-detachment component includes a lower connecting block (10) fixedly connected to both sides of the connector body (2). The lower connecting block (10) has a sliding groove inside, and a movable rod (11) is movably connected inside the sliding groove. The upper connecting block (9) has an irregular anti-detachment groove (12) inside, and an irregular anti-detachment block (13) that matches the irregular anti-detachment groove (12) is fixedly connected to the upper end of the movable rod (11).

3. A high sealing hydraulic hose coupling as claimed in claim 2, wherein, The lower end of the movable rod (11) is fixedly connected to a limiting block (14).

4. The high sealing hydraulic hose coupling as set forth in claim 1, wherein A sealing disc (15) is fixedly connected to one end of the fixed tube (3) and the connecting tube (5). The diameter of the sealing disc (15) is larger than the inner diameter of the limiting ring (6). The limiting ring (6) is movably sleeved on the surface of the connecting tube (5). The diameter of the internal thread (8) is larger than the diameter of the sealing disc (15).

5. A high-sealing hydraulic hose connector according to claim 4, characterized in that, Each of the two sealing discs (15) has a sealing gasket (16) on its opposite side.

6. The high-seal hydraulic hose coupling set forth in claim 1, wherein, The lower end of the connector body (2) is fixedly connected to a reducing pipe (17), and the lower end of the reducing pipe (17) is fixedly connected to a hose body (18).