High pressure rotary hydraulic coupling

CN224607262UActive Publication Date: 2026-08-07DEMETEX (QUANZHOU) HYDRAULIC MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DEMETEX (QUANZHOU) HYDRAULIC MANUFACTURING CO LTD
Filing Date
2025-10-14
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0005]针对现有技术的不足,本实用新型提供了一种高压旋转液压接头,具备减少更换或者维修接头时需要的停机时间等优点,解决了常见的高压液压旋转接头,接头内部的密封件、转动部件等容易磨损,更换或者维修接头时,需要进行停机的问题

Benefits of technology

[0018]该高压旋转液压接头,通过在输入基管的顶部设置两个分支输出管,在分支输出管表面设置电控阀,在分支输出管内部设置流量计,当流量突然增加或者减少时,检测出该分支输出管内出现泄漏的情况,通过控制器控制该分支输出管关闭,工作人员将接管拆卸下来与另外一个分支输出管连通,快速将管路更换连通,然后对损坏的管路进行维修,减少停机时间,解决了常见的高压液压旋转接头,接头内部的密封件、转动部件等容易磨损,更换或者维修接头时,需要进行停机的问题。

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Abstract

The utility model relates to a high pressure rotary hydraulic joint belongs to hydraulic joint technical field, including input base pipe, the top fixed mounting of input base pipe has the number of two branch output pipe, is provided with branch control subassembly on input base pipe and branch output pipe, branch control subassembly includes the number of two mounting base fixed mounting on input base pipe surface, the one side fixed mounting of mounting base has the controller. This high pressure rotary hydraulic joint, through setting two branch output pipe in the top of input base pipe, setting electric control valve on branch output pipe surface, setting flowmeter inside branch output pipe, when suddenly increasing or reducing, detect that the leakage condition appears in this branch output pipe, through controller control this branch output pipe closes, and the staff will connect pipe and another branch output pipe intercommunication, and quickly replace the pipeline intercommunication, then maintain the damaged pipeline, reduce downtime.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic joint technology, specifically a high-pressure rotary hydraulic joint. Background Technology

[0002] A rotary hydraulic joint is a specialized rotary joint designed for low-speed, high-pressure, multi-medium, multi-channel equipment. It features independent internal piping to meet the needs of various operating conditions. Its design and layout are tailored to specific application scenarios to achieve multi-channel media transmission. When the shaft connected to the rotating equipment rotates, the independent piping and sealing structure inside the rotary hydraulic joint maintains continuous media transmission while preventing leakage. Through a special sealing design and piping layout, hydraulic oil and other media can be stably transmitted from the inlet to the outlet in a rotating environment, providing continuous hydraulic power to the rotating equipment or enabling other functions.

[0003] Utility model patent CN220581929U discloses a high-pressure hydraulic rotary joint, including a connector, a sleeve rotatably connected to the top of the connector, a connector core fixedly connected to the inner cavity of the sleeve, the bottom end of the connector core penetrating the bottom surface of the inner cavity of the sleeve and extending into the connector, a bearing fixedly connected to the inner ring of the connector, the bottom end of the connector core being fixedly connected to the inner ring of the bearing, and a base with an integrally formed structure located directly below the connector. By setting a fixing component, the base can be quickly fixed to the connector, overcoming the inconvenience of using bolts for fixing in the prior art. This greatly facilitates the disassembly, installation, and maintenance of the device by operators, improving work efficiency. By setting a sealing component, it effectively ensures that hydraulic oil does not leak during transportation, guaranteeing the stability and practicality of the device.

[0004] However, during long-term rotation, the seals and rotating parts inside the high-pressure hydraulic rotary joint are prone to wear. When replacing or repairing the joint, the machine needs to be shut down, which increases maintenance costs. Therefore, a high-pressure rotary hydraulic joint is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a high-pressure rotary hydraulic joint that has advantages such as reducing downtime required when replacing or repairing the joint. It solves the problem that common high-pressure hydraulic rotary joints are prone to wear of internal seals and rotating parts, requiring downtime when replacing or repairing the joint.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-pressure rotary hydraulic joint includes an input base pipe, two branch output pipes are fixedly installed on the top of the input base pipe, and branch control components are provided on the input base pipe and the branch output pipes;

[0008] The branch control assembly includes two mounting bases fixedly installed on the surface of the input base pipe. A controller is fixedly installed on one side of the mounting base, a detection wire is fixedly installed on one side of the controller, a flow meter is fixedly installed at one end of the detection wire, the flow meter is fixedly installed on the side wall of the branch output pipe, a control wire is fixedly installed on one side of the controller, and an electrically controlled valve is fixedly installed on the surface of the branch output pipe. The control wire is electrically connected to the electrically controlled valve.

[0009] Furthermore, an alarm is fixedly installed on one side of the controller, the alarm including a buzzer and a flashing light.

[0010] Furthermore, a limiting ring plate is fixedly installed on the surface of the branch output pipe, and a rotating sleeve is rotatably installed on the surface of the branch output pipe.

[0011] Furthermore, the rotating sleeve is located at the top of the limiting ring plate, and a limiting screw is fixedly installed at the top of the branch output pipe, with a limiting nut installed on the surface thread of the limiting screw.

[0012] Furthermore, the limiting nut is located at the top of the rotating sleeve, and an output connector is fixedly installed on one side of the rotating sleeve.

[0013] Furthermore, a fixed connecting groove is provided on the surface of the branch output pipe, and the rotating sleeve is aligned with the fixed connecting groove.

[0014] Furthermore, the surface of the branch output pipe has four connecting holes, which are aligned with the fixed connecting groove.

[0015] Furthermore, the inner wall of the rotating sleeve is provided with a movable connecting groove, which is aligned with the fixed connecting groove. Two sealing rings are embedded in the inner wall of the rotating sleeve, which are located above and below the movable connecting groove, respectively.

[0016] Compared with the prior art, this utility model provides a high-pressure rotary hydraulic joint, which has the following characteristics:

[0017] Beneficial effects:

[0018] This high-pressure rotary hydraulic joint features two branch output pipes at the top of the input base pipe. An electrically controlled valve is installed on the surface of each branch output pipe, and a flow meter is installed inside. When the flow rate suddenly increases or decreases, a leak is detected in the branch output pipe. The controller then shuts down the branch output pipe. Workers can then disconnect the connector and connect it to the other branch output pipe, quickly replacing and connecting the pipeline. Damaged pipelines can then be repaired, reducing downtime. This solution addresses the common problem with high-pressure hydraulic rotary joints where internal seals and rotating parts are prone to wear, requiring downtime for replacement or repair. Attached Figure Description

[0019] Figure 1 This is a front view of the structure of this utility model;

[0020] Figure 2 This is a 3D diagram of the input base tube for this utility model;

[0021] Figure 3 This is a front sectional view of the branch output pipe of this utility model;

[0022] Figure 4 This is a three-dimensional diagram of the branch output tube of this utility model.

[0023] In the diagram: 1. Input base pipe; 2. Branch output pipe; 3. Mounting base; 4. Controller; 5. Detection wire; 6. Flow meter; 7. Control wire; 8. Electrically controlled valve; 9. Alarm; 10. Limiting ring plate; 11. Rotating sleeve; 12. Limiting screw; 13. Limiting nut; 14. Output connector; 15. Fixed connecting groove; 16. Connecting hole; 17. Movable connecting groove; 18. Sealing ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 4 In this embodiment, a high-pressure rotary hydraulic joint includes an input base pipe 1, two branch output pipes 2 are fixedly installed on the top of the input base pipe 1, and branch control components are provided on the input base pipe 1 and the branch output pipes 2.

[0026] The branch control assembly includes two mounting bases 3 fixedly installed on the surface of the input base pipe 1. A controller 4 is fixedly installed on one side of the mounting base 3. A detection wire 5 is fixedly installed on one side of the controller 4. A flow meter 6 is fixedly installed at one end of the detection wire 5. The flow meter 6 is fixedly installed on the side wall of the branch output pipe 2. A control wire 7 is fixedly installed on one side of the controller 4. An electric control valve 8 is fixedly installed on the surface of the branch output pipe 2. The control wire 7 is electrically connected to the electric control valve 8.

[0027] When in use, one of the solenoid valves 8 is closed, and the medium flows through the other branch output pipe 2. When the flow meter 6 detects an abnormal flow in the branch output pipe 2, the controller 4 closes the solenoid valve 8, and the operator connects the pipeline to the other branch output pipe 2. Then, the abnormal branch output pipe 2 is repaired to reduce downtime.

[0028] Secondly, an alarm 9 is fixedly installed on one side of the controller 4. The alarm 9 includes a buzzer and a flashing light. When the flow meter 6 detects an abnormal flow in the branch output pipe 2, the corresponding alarm 9 is activated to alert the staff.

[0029] Specifically, when the flow meter 6 detects an abnormal flow in the branch output pipe 2, the controller 4 closes the electric control valve 8, the corresponding alarm 9 is activated, the staff connects the pipeline to another branch output pipe 2, and then repairs the abnormal branch output pipe 2 to reduce downtime.

[0030] Please see Figure 1 and Figure 3 In this embodiment, a limiting ring plate 10 is fixedly installed on the surface of the branch output pipe 2, and a rotating sleeve 11 is rotatably installed on the surface of the branch output pipe 2.

[0031] The rotating sleeve 11 is located at the top of the limiting ring plate 10, and the top end of the branch output pipe 2 is fixedly installed with a limiting screw 12. A limiting nut 13 is threaded onto the surface of the limiting screw 12.

[0032] Secondly, the limiting nut 13 is located at the top of the rotating sleeve 11, and the output connector 14 is fixedly installed on one side of the rotating sleeve 11. The medium flows from the input base pipe 1 into the branch output pipe 2, then flows into the interior of the rotating sleeve 11, and finally flows out through the output connector 14.

[0033] Please see Figure 3 and Figure 4 In this embodiment, a fixed connecting groove 15 is provided on the surface of the branch output pipe 2, and the rotating sleeve 11 is aligned with the fixed connecting groove 15.

[0034] The branch output pipe 2 has four connecting holes 16 on its surface, which are aligned with the fixed connecting groove 15.

[0035] Secondly, the inner wall of the rotating sleeve 11 is provided with a movable connecting groove 17, which is aligned with the fixed connecting groove 15. Two sealing rings 18 are embedded in the inner wall of the rotating sleeve 11, which are located above and below the movable connecting groove 17, respectively.

[0036] The working principle of the above embodiment is as follows: when the flow meter 6 detects an abnormal flow in the branch output pipe 2, the controller 4 closes the electric control valve 8, the corresponding alarm 9 is activated, the staff connects the pipeline to the output connector 14 on another branch output pipe 2, and then repairs or replaces the rotating sleeve 11 and other components on the abnormal branch output pipe 2.

[0037] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0038] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure rotary hydraulic joint, comprising an input base pipe (1), characterized in that: Two branch output pipes (2) are fixedly installed on the top of the input base pipe (1), and branch control components are provided on the input base pipe (1) and the branch output pipes (2); The branch control assembly includes two mounting bases (3) fixedly installed on the surface of the input base pipe (1). A controller (4) is fixedly installed on one side of the mounting base (3). A detection wire (5) is fixedly installed on one side of the controller (4). A flow meter (6) is fixedly installed at one end of the detection wire (5). The flow meter (6) is fixedly installed on the side wall of the branch output pipe (2). A control wire (7) is fixedly installed on one side of the controller (4). An electric control valve (8) is fixedly installed on the surface of the branch output pipe (2). The control wire (7) is electrically connected to the electric control valve (8).

2. The high-pressure rotary hydraulic joint according to claim 1, characterized in that: An alarm (9) is fixedly installed on one side of the controller (4). The alarm (9) includes a buzzer and a flashing light.

3. A high-pressure rotary hydraulic joint according to claim 1, characterized in that: A limiting ring plate (10) is fixedly installed on the surface of the branch output pipe (2), and a rotating sleeve (11) is rotatably installed on the surface of the branch output pipe (2).

4. A high-pressure rotary hydraulic joint according to claim 3, characterized in that: The rotating sleeve (11) is located at the top of the limiting ring plate (10), and the top end of the branch output pipe (2) is fixedly installed with a limiting screw (12), and a limiting nut (13) is threaded on the surface of the limiting screw (12).

5. A high-pressure rotary hydraulic joint according to claim 4, characterized in that: The limiting nut (13) is located at the top of the rotating sleeve (11), and an output connector (14) is fixedly installed on one side of the rotating sleeve (11).

6. A high-pressure rotary hydraulic joint according to claim 5, characterized in that: The surface of the branch output pipe (2) is provided with a fixed connecting groove (15), and the rotating sleeve (11) is aligned with the fixed connecting groove (15).

7. A high-pressure rotary hydraulic joint according to claim 6, characterized in that: The surface of the branch output pipe (2) has four connecting holes (16), which are aligned with the fixed connecting groove (15).

8. A high-pressure rotary hydraulic joint according to claim 7, characterized in that: The inner wall of the rotating sleeve (11) is provided with a movable connecting groove (17), which is aligned with the fixed connecting groove (15). The inner wall of the rotating sleeve (11) is provided with two sealing rings (18), which are located above and below the movable connecting groove (17), respectively.

Citation Information

Patent Citations

  • High-pressure hydraulic rotary joint

    CN220581929U