A hydraulic fitting connection structure

Abstract

The utility model discloses a kind of hydraulic connector connecting structure, including female connector and sub connector, the one end of female connector and sub connector is communicated with connector assembly, the inside of connector assembly is installed with cut-off assembly, and the other end of female connector and sub connector is installed with pipeline connecting assembly, the outside of connector assembly is equipped with the stable sealing assembly for coping with leakage and shaking, a kind of hydraulic connector connecting structure of the utility model, by stable sealing assembly, sealing ring can further improve sealing performance on the basis of threaded connection, flat washer can be evenly distributed in the surface of the connected component with pressure, avoid local pressure too high and lead to connected component deformation or damage, spring washer effectively prevent threaded loosening caused by vibration, impact and other external force, ensure the reliability of connector connection, when installing hydraulic pipe by clamping sleeve, welding or other complex processing technology is not needed, only need to insert hydraulic pipe into connector, then screw threaded sleeve female and make clamping sleeve deformation, connection can be completed.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic joint technology, specifically a hydraulic joint connection structure. Background Technology

[0002] Hydraulic pipe fittings are parts in hydraulic systems that connect pipelines or mount pipelines onto hydraulic components. They are a general term for detachable connectors in fluid passages. With the development of the machinery industry and the increasing demands on various technical specifications, the requirements for hydraulic pipe fittings are becoming increasingly stringent.

[0003] However, most existing hydraulic connectors are quick-connect type. Although these connectors are relatively easy to install, there is a certain pressure in the hydraulic pipeline. Because there are usually no matching tools, it is difficult to open them by hand when disassembling due to the pressure. In addition, the sealing performance and connection strength of the plug-in type connectors are usually relatively weak. If they work under dynamic load for a long time, leakage and poor sealing may occur.

[0004] Therefore, a hydraulic connector connection structure is needed. Utility Model Content

[0005] The purpose of this utility model is to provide a hydraulic connector connection structure to solve the problems mentioned in the background art, which are relatively easy to install but have a certain pressure in the hydraulic pipeline. Because there are usually no matching tools, it is difficult to open by hand when disassembling due to the pressure. In addition, plug-in connectors usually have relatively weak sealing and connection strength. If they work under dynamic load for a long time, leakage and poor sealing may occur.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hydraulic connector connection structure, including a female connector and a female connector, one end of the female connector and one end of the female connector are connected to a connector assembly, a flow-stopping component is installed inside the connector assembly, a pipeline connection assembly is installed at the other end of the female connector and the other end of the female connector, and a stable sealing component for dealing with leakage and shaking is sleeved on the outside of the connector assembly.

[0007] Preferably, the connector assembly includes a first connecting shell and a second connecting shell, the first connecting shell being fixedly connected to one end of the female connector, the second connecting shell being fixedly connected to one end of the female connector, an unlocking block being fixedly installed on the outside of the female connector, and a rotating flange being fixedly connected to the other end of the female connector.

[0008] Preferably, the inner wall of the first connecting shell is provided with a connector thread, the second connecting shell is threadedly connected to the first connecting shell through the connector thread, and one end of the first connecting shell is provided with an installation groove.

[0009] Preferably, the flow-stopping assembly includes a return spring and a squeeze rod. The squeeze rod is fixedly connected inside the sub-connector, and the return spring is fixedly installed inside the female connector. One end of the return spring is fixedly connected to a flow-stopping plug, which is slidably installed inside the female connector. When disassembling the connector, the oil circuit is closed, which can effectively prevent a large amount of hydraulic oil from leaking from the interface. This can reduce oil waste and lower costs.

[0010] Preferably, the stable sealing assembly includes a sealing ring, a flat gasket, and a spring gasket. The sealing ring is fixedly installed inside the mounting groove, and the flat gasket and spring gasket are sequentially sleeved on one end of the second connecting shell. This avoids excessive local pressure that could cause deformation or damage to the connector, while also ensuring that the joint maintains a stable connection under dynamic loads.

[0011] Preferably, the pipeline connection assembly includes two hydraulic pipes, one end of which is inserted into the interior of the female connector, and the other hydraulic pipe is fixedly connected to the interior of the rotary flange. One end of the hydraulic pipe is fixedly fitted with a ferrule, and a threaded sleeve is fitted on the outside of the ferrule. The threaded sleeve is threadedly connected to the female connector. When the hydraulic system needs to be repaired or parts replaced, the ferrule connector can be easily disassembled. Simply loosen the nut to remove the hydraulic pipe from the connector without damaging the hydraulic pipe or the connector.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By stabilizing the sealing components, the sealing ring can further improve the sealing performance on the basis of the threaded connection. When the thread is tightened, the sealing ring is squeezed and deformed, filling the mating gap of the joint and preventing hydraulic oil leakage. When the threaded connection is under stress, the flat gasket can evenly distribute the pressure on the surface of the connected parts, avoiding excessive local pressure that could cause deformation or damage to the connected parts, thus improving the load-bearing capacity and stability of the joint. The spring gasket effectively prevents the threads from loosening due to external forces such as vibration and impact, ensuring the reliability of the joint connection.

[0014] When installing hydraulic pipes using a ferrule, no welding or other complex processing is required. Simply insert the hydraulic pipe into the connector, then tighten the threaded nut to deform the ferrule, and the connection is complete. Furthermore, the threaded ferrule and the unlocking block can be disassembled by turning the unlocking block with a wrench under pressure. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the hydraulic connector connection structure of this utility model;

[0016] Figure 2 This is a diagram of the stable sealing component of the hydraulic connector connection structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the female connector of the hydraulic connector connection structure of this utility model;

[0018] Figure 4 This is a cross-sectional view of the sub-joint of the hydraulic joint connection structure of this utility model.

[0019] In the diagram: 1. Female connector; 2. First connecting shell; 3. Female connector; 4. Unlocking block; 5. Second connecting shell; 6. Sealing ring; 7. Flat gasket; 8. Spring gasket; 9. Rotary flange; 10. Hydraulic pipe; 11. Threaded sleeve; 12. Compression sleeve; 13. Return spring; 14. Cut-off plug; 15. Connector thread; 16. Extrusion rod. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please see Figure 1-4 This utility model provides a hydraulic connector connection structure, including a female connector 1 and a female connector 3. One end of the female connector 1 and one end of the female connector 3 are connected to a connector assembly. A flow-stopping component is installed inside the connector assembly. A pipeline connection assembly is installed at the other end of the female connector 1 and the other end of the female connector 3. A stable sealing component for dealing with leakage and shaking is sleeved on the outside of the connector assembly.

[0022] Furthermore, the connector assembly includes a first connecting shell 2 and a second connecting shell 5. The first connecting shell 2 is fixedly connected to one end of the female connector 1, and the second connecting shell 5 is fixedly connected to one end of the female connector 3. An unlocking block 4 is fixedly installed on the outside of the female connector 3, and a rotating flange 9 is fixedly connected to the other end of the female connector 3. A connector thread 15 is provided on the inner wall of the first connecting shell 2, and the second connecting shell 5 is threadedly connected to the first connecting shell 2 through the connector thread 15. An installation groove is provided at one end of the first connecting shell 2. The flow-stopping assembly includes a return spring 13 and a compression rod 16. The compression rod 16 is fixedly connected to the inside of the female connector 3, and the return spring 13 is fixedly installed inside the female connector 1. A flow-stopping plug 14 is fixedly connected to one end of the return spring 13, and the flow-stopping plug 14 is slidably installed inside the female connector 1. When connecting the female connector 1 and the female connector 3, the second connecting shell 5 at one end of the female connector 3 is inserted into the female connector 1. Inside the first connecting shell 2 at one end of the connector 1, the second connecting shell 5 is rotated by the unlocking block 4, causing it to rotate within the rotating flange 9. When the second connecting shell 5 rotates, it is threadedly connected to the first connecting shell 2 through the connector thread 15. When the second connecting shell 5 is connected, it drives the extrusion rod 16 inside the sub-connector 3 to move closer to the throttling plug 14. When the first connecting shell 2 and the second connecting shell 5 are connected, the extrusion rod 16 extrudes the throttling plug 14, causing it to slide along the inside of the female connector 1, releasing the seal on the female connector 1. At the same time, the return spring 13 is subjected to extrusion force. When disassembling the connection between the female connector 1 and the sub-connector 3, the connection between the first connecting shell 2 and the second connecting shell 5 is released by turning the unlocking block 4 in the opposite direction with a wrench. At this time, the extrusion rod 16 moves away from the throttling plug 14, and the return spring 13 releases pressure, causing the throttling plug 14 to return to its original position and seal the female connector 1 again.

[0023] Furthermore, the stable sealing assembly includes a sealing ring 6, a flat gasket 7, and a spring gasket 8. The sealing ring 6 is fixedly installed inside the mounting groove. The flat gasket 7 and the spring gasket 8 are sequentially fitted onto one end of the second connecting shell 5. When the first connecting shell 2 and the second connecting shell 5 are threaded together, the sealing ring 6 at one end of the first connecting shell 2 and the flat gasket 7 and the spring gasket 8 fitted onto the second connecting shell 5 are compressed. When the joint is connected, the sealing ring 6 strengthens the seal, the flat gasket 7 disperses the pressure, and the spring gasket 8 effectively prevents the threads from loosening due to external forces such as vibration and impact, thus ensuring reliability.

[0024] Furthermore, the pipeline connection assembly includes two hydraulic pipes 10. One end of one hydraulic pipe 10 is inserted into the inside of the female connector 1, and the other hydraulic pipe 10 is fixedly connected to the inside of the rotary flange 9. One end of one hydraulic pipe 10 is fixedly fitted with a ferrule 12, and a threaded sleeve 11 is fitted on the outside of the ferrule 12. The threaded sleeve 11 is threadedly connected to the female connector 1. When one hydraulic pipe 10 is inserted into the inside of the female connector 1, the threaded sleeve 11 fitted on the outside of the hydraulic pipe 10 is threadedly connected to one end of the female connector 1, so that the threaded sleeve 11 compresses the ferrule 12 on the hydraulic pipe 10, so that it fully fits and seals against the female connector 1 for fixation.

[0025] In this embodiment, the hydraulic pipe 10 connected to one end of the sub-connector 3 is connected to the equipment to be operated. Then, another hydraulic pipe 10 is inserted into the female connector 1. The threaded sleeve 11, which is fitted on the outside of this hydraulic pipe 10, is then threadedly connected to one end of the female connector 1. The threaded sleeve 11 compresses the retaining sleeve 12 on the hydraulic pipe 10, ensuring a tight seal and fixation with the female connector 1. Then, the second connecting shell 5 at one end of the sub-connector 3 is inserted into the first connecting shell 2 at one end of the female connector 1. The second connecting shell 5 is then rotated by the unlocking block 4, causing it to rotate within the rotating flange 9. As the second connecting shell 5 rotates, it is threadedly connected to the first connecting shell 2 through the connector thread 15. When the second connecting shell 5 is connected, the squeezing rod 16 inside the sub-connector 3 moves closer to the throttling plug 14. When the first connecting shell 2 and the second connecting shell 5 are connected, the squeezing rod 16 squeezes the throttling plug 14, causing it to slide along the inside of the female connector 1, releasing the seal on the female connector 1. At the same time, the return spring 13 is subjected to squeezing force. At this time, the connection is completed and the oil circuit is also connected, so hydraulic work can be carried out. When disassembling the connection between the female connector 1 and the sub-connector 3, the connection between the first connecting shell 2 and the second connecting shell 5 is released by turning the unlocking block 4 in the opposite direction with a wrench. At this time, the squeezing rod 16 moves away from the throttling plug 14, and the return spring 13 releases pressure, causing the throttling plug 14 to return to its original position and seal the female connector 1 again.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hydraulic coupling connection structure comprising a female coupling (1) and a male coupling (3), characterized in that: One end of the female connector (1) and one end of the female connector (3) are connected to a connector assembly. A flow-stopping component is installed inside the connector assembly. A pipeline connection assembly is installed at the other end of the female connector (1) and the other end of the female connector (3). A stable sealing component for dealing with leakage and shaking is sleeved on the outside of the connector assembly.

2. A hydraulic coupling connection structure according to claim 1, characterized in that: The connector assembly includes a first connecting shell (2) and a second connecting shell (5). The first connecting shell (2) is fixedly connected to one end of the female connector (1), and the second connecting shell (5) is fixedly connected to one end of the female connector (3). An unlocking block (4) is fixedly installed on the outside of the female connector (3), and a rotating flange (9) is fixedly connected to the other end of the female connector (3).

3. A hydraulic coupling connection structure according to claim 2, wherein: The inner wall of the first connecting shell (2) is provided with a connector thread (15), and the second connecting shell (5) is threadedly connected to the first connecting shell (2) through the connector thread (15). One end of the first connecting shell (2) is provided with an installation groove.

4. The hydraulic coupling connection of claim 1, wherein: The flow-blocking assembly includes a return spring (13) and a squeeze rod (16). The squeeze rod (16) is fixedly connected to the inside of the sub-connector (3). The return spring (13) is fixedly installed inside the female connector (1). One end of the return spring (13) is fixedly connected to a flow-blocking plug (14). The flow-blocking plug (14) is slidably installed inside the female connector (1).

5. The hydraulic coupling connection of claim 3, wherein: The stable sealing assembly includes a sealing ring (6), a flat gasket (7), and a spring gasket (8). The sealing ring (6) is fixedly installed inside the mounting groove, and the flat gasket (7) and the spring gasket (8) are sequentially sleeved on one end of the second connecting shell (5).

6. The hydraulic coupling connection of claim 2, wherein: The pipeline connection assembly includes two hydraulic pipes (10), one end of which is inserted into the inside of the female connector (1), and the other hydraulic pipe (10) is fixedly connected to the inside of the rotary flange (9). One end of one of the hydraulic pipes (10) is fixedly installed with a ferrule (12), and a threaded sleeve (11) is fitted on the outside of the ferrule (12). The threaded sleeve (11) is threadedly connected to the female connector (1).

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