A hydraulic pipe joint for a hydraulic hose assembly

Abstract

The utility model discloses a hydraulic pipe joint for hydraulic hose assembly, including hydraulic pipe male joint, one end fixed communication of hydraulic pipe male joint has liquid inlet pipe, the other end fixed communication of hydraulic pipe male joint has cylinder, the one end fixed communication of cylinder away from hydraulic pipe male joint has circular platform column, the outer wall of cylinder and circular platform column is commonly covered and is equipped with hydraulic pipe female joint, one end fixed communication of hydraulic pipe female joint has liquid outlet pipe, the outer wall of hydraulic pipe male joint is covered and is equipped with the rotary sleeve. The utility model discloses through setting up the direction structure of cooperation in male joint connecting portion and female joint inner wall, can realize accurate positioning in the butt joint process, effectively avoids radial deviation and circumferential misplacement, not only reduces the assembly difficulty under the narrow space or complex pipe layout, reduces the number of repeated adjustment, can prevent the hard scratch of sealing part and female joint inner wall more, guarantees the initial performance of seal.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic pipe fitting technology, and in particular to a hydraulic pipe fitting for hydraulic hose assemblies. Background Technology

[0002] In hydraulic transmission systems, hydraulic hose assemblies are key components for realizing the transmission of hydraulic power and the transport of media. As the core connection hub of the hose assembly, the hydraulic pipe joints directly determine the operating efficiency, safety performance and service life of the entire hydraulic system through their connection accuracy, sealing reliability, ease of operation and structural stability.

[0003] Most existing hydraulic pipe fittings on the market adopt traditional threaded connections, snap-fit ​​connections, or flange connections. Traditional hydraulic pipe fittings rely on the conical or cylindrical surfaces at the ends of the fittings for natural contact and positioning during the male-female connection process, without a dedicated, precise guiding and limiting structure. This positioning method easily leads to radial offset or circumferential misalignment during connection, significantly increasing assembly difficulty and reducing on-site assembly efficiency. More importantly, misalignment can cause the sealing components to scrape against the inner wall of the fitting, resulting in edge damage or uneven deformation of the seals, directly posing a significant risk of media leakage during subsequent use. Especially in confined spaces or complex pipeline layouts, the lack of guiding positioning makes assembly operations even more difficult, sometimes requiring multiple adjustments to complete the connection, severely impacting construction progress. To address these issues, this application proposes a hydraulic pipe fitting for hydraulic hose assemblies. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a hydraulic pipe connector for hydraulic hose assemblies. By setting a matching guide structure at the male connector connection point and the inner wall of the female connector, precise positioning can be achieved during the docking process, effectively avoiding radial offset and circumferential misalignment. This not only reduces the assembly difficulty in confined spaces or complex pipeline layouts and reduces the number of repeated adjustments, but also prevents hard scraping between the sealing components and the inner wall of the connector, ensuring the initial performance of the seal.

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

[0006] A hydraulic hose connector for a hydraulic hose assembly includes a male hydraulic hose connector, one end of which is fixedly connected to an inlet pipe, and the other end of which is fixedly connected to a cylinder. The end of the cylinder away from the male hydraulic hose connector is fixedly connected to a frustum-shaped cylinder. A female hydraulic hose connector is fitted onto the outer walls of the cylinder and the frustum-shaped cylinder. One end of the female hydraulic hose connector is fixedly connected to an outlet pipe. A rotating sleeve is fitted onto the outer wall of the male hydraulic hose connector and is arranged on the outer wall of the outlet pipe. Two guiding mechanisms are provided between the cylinder and the female hydraulic hose connector, and multiple sealing mechanisms are provided between the frustum-shaped cylinder and the female hydraulic hose connector.

[0007] Preferably, the guiding mechanism includes two fixed blocks that are fixedly connected to the outer wall of the cylinder, and the inner wall of the hydraulic pipe connector has two guide grooves, with the two fixed blocks passing through the corresponding guide grooves and slidably connected to them.

[0008] Preferably, the guiding mechanism includes two fixed blocks that are fixedly connected to the outer wall of the cylinder, and the inner wall of the hydraulic pipe connector has two guide grooves, with the two fixed blocks passing through the corresponding guide grooves and slidably connected to them.

[0009] Preferably, the rotating sleeve has a through opening, and the liquid outlet pipe is arranged through the through opening.

[0010] Preferably, the outer wall of the hydraulic pipe male connector and the inner wall of the rotating sleeve are threaded together, the outer wall of the hydraulic pipe male connector is provided with an external thread, and the inner wall of the rotating sleeve is provided with an internal thread that mates with the external thread.

[0011] Preferably, the outer wall of the rotating sleeve is provided with a plurality of first friction protrusions, and the outer wall of the hydraulic pipe connector is provided with a plurality of second friction protrusions.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. By setting a matching guide structure at the male connector connection point and the inner wall of the female connector, precise positioning can be achieved during the docking process, effectively avoiding radial offset and circumferential misalignment. This not only reduces the assembly difficulty in narrow spaces or complex pipeline layouts and reduces the number of repeated adjustments, but also prevents hard scraping between the sealing components and the inner wall of the connector, ensuring the initial performance of the seal.

[0014] 2. The sealing structure, which uses multiple sets of sealing elements in conjunction with the limiting installation groove, can form a three-dimensional sealing effect through multiple sealing defenses, thus overcoming the limitation of a single seal relying on thread preload.

[0015] 3. By setting friction protrusions on the outer wall of the rotating operating parts, the friction can be significantly improved in situations where the hands are contaminated with oil, dust, etc., to avoid slippage and reduce the difficulty of locking and unlocking.

[0016] 4. By using the guide structure to achieve circumferential limiting of the male and female joints, the relative rotation caused by vibration during the operation of the hydraulic system can be effectively suppressed, preventing the threaded connection from loosening. This not only ensures the uniformity of the sealing surface contact pressure and maintains stable sealing performance, but also reduces wear on the joint mating surfaces, extends the overall service life of the joint, and reduces the frequency of system maintenance and operating costs.

[0017] In summary, by setting a matching guide structure at the male connector connection point and the inner wall of the female connector, precise positioning can be achieved during the docking process, effectively avoiding radial offset and circumferential misalignment. This not only reduces the assembly difficulty in confined spaces or complex pipeline layouts and reduces the number of repeated adjustments, but also prevents hard scraping between the sealing components and the inner wall of the connector, ensuring the initial performance of the seal. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a hydraulic pipe connector for a hydraulic hose assembly proposed in this utility model;

[0019] Figure 2 This is a first cross-sectional schematic diagram of a hydraulic pipe connector for a hydraulic hose assembly proposed in this utility model;

[0020] Figure 3 This is a second cross-sectional schematic diagram of a hydraulic pipe connector for a hydraulic hose assembly proposed in this utility model.

[0021] In the diagram: 1. Hydraulic pipe male connector, 2. Inlet pipe, 3. Cylindrical column, 4. Frustum column, 5. Fixing block, 6. Seal, 7. Hydraulic pipe female connector, 8. Outlet pipe, 9. Guide groove, 10. Rotating sleeve, 11. Through port, 12. External thread, 13. Internal thread, 14. First friction protrusion, 15. Second friction protrusion, 16. Limiting mounting groove. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1-3A hydraulic hose connector for a hydraulic hose assembly includes a male hydraulic hose connector 1, which serves as the basic component of the overall connection structure. One end of the male hydraulic hose connector 1 is fixedly connected to an inlet pipe 2 for introducing hydraulic fluid to be transferred. The other end of the male hydraulic hose connector 1 is fixedly connected to a cylinder 3 for connecting the male hydraulic hose connector 1 to subsequent structures. The end of the cylinder 3 away from the male hydraulic hose connector 1 is fixedly connected to a frustum cylinder 4, which, in conjunction with a sealing mechanism, achieves a tight fit with a female hydraulic hose connector 7. The outer walls of the cylinder 3 and the frustum cylinder 4 are jointly fitted with the female hydraulic hose connector 7, which forms a docking channel with the side structure of the male hydraulic hose connector 1. One end of the female hydraulic hose connector 7 is fixedly connected to an outlet pipe 8. For outputting hydraulic fluid transmitted through the connector, the outer wall of the hydraulic pipe male connector 1 is fitted with a rotating sleeve 10. The rotating sleeve 10 is used to drive the relative position adjustment of the hydraulic pipe male connector 1 and the hydraulic pipe female connector 7. The outer wall of the hydraulic pipe male connector 1 and the inner wall of the rotating sleeve 10 are threadedly connected. The outer wall of the hydraulic pipe male connector 1 is provided with an external thread 12, and the inner wall of the rotating sleeve 10 is provided with an internal thread 13 that mates with the external thread 12. The two are connected by threads to convert the rotational movement of the rotating sleeve 10 into an axial locking or unlocking action. The outer wall of the rotating sleeve 10 is provided with multiple first friction protrusions 14, and the outer wall of the hydraulic pipe male connector 1 is provided with multiple second friction protrusions 15. The first friction protrusions 14 and the second friction protrusions 15 are used to increase the friction between the hand and the rotating sleeve 10, facilitating rotational operation.

[0024] A rotating sleeve 10 is fitted onto the outer wall of the outlet pipe 8. A through-hole 11 is provided on the rotating sleeve 10 to provide space for the outlet pipe 8 to pass through, thus avoiding interference between the two. The outlet pipe 8 passes through the through-hole 11. Two guide mechanisms are provided between the cylinder 3 and the hydraulic pipe female connector 7. The guide mechanisms are used to ensure that the docking direction of the cylinder 3 and the hydraulic pipe female connector 7 is accurate. The guide mechanism includes two fixing blocks 5 fixedly connected to the outer wall of the cylinder 3. Two guide grooves 9 are opened on the inner wall of the hydraulic pipe female connector 7. The two fixing blocks 5 pass through the corresponding guide grooves 9 and are slidably connected to them. The relative rotation of the two is restricted by the sliding of the fixing blocks 5 in the guide grooves 9.

[0025] Multiple sealing mechanisms are provided between the frustum column 4 and the hydraulic pipe female connector 7. The sealing mechanisms are used to enhance the liquid sealing at the connection between the two. The sealing mechanism includes multiple limiting installation grooves 16 opened on the outer wall of the frustum column 4. The limiting installation grooves 16 are used to fix the installation position of the seal 6. The inner wall of each limiting installation groove 16 is equipped with a seal 6. The multiple seals 6 are arranged to abut against the inner wall of the hydraulic pipe female connector 7. The deformation of the seal 6 fills the gap to prevent liquid leakage.

[0026] In this invention, when it is necessary to connect and seal the two, the operator holds the hydraulic pipe male connector 1 with one hand and the rotating sleeve 10 with the other, so that the cylinder 3 and the frustum 4 are inserted into the hydraulic pipe female connector 7. During this process, the fixing block 5 is inserted into the guide groove 9 and slides. Finally, the operator covers the outer wall of the hydraulic pipe male connector 1 with the rotating sleeve 10 and rotates the rotating sleeve 10 to move the cylinder 3 and the frustum 4 toward the hydraulic pipe female connector 7. As the rotating sleeve 10 rotates, the outer wall of the frustum 4 abuts against the inner wall of the hydraulic pipe female connector 7. The arrangement of multiple sealing elements 6 makes the sealing elements 6 tightly abut against the inner wall of the hydraulic pipe female connector 7 and deforms. The arrangement of multiple sealing elements 6 achieves the sealing between the two, ensuring the sealing of the liquid flow between the inlet pipe 2 and the outlet pipe 8.

Claims

1. A hydraulic hose fitting for a hydraulic hose assembly, comprising a male hydraulic hose fitting (1), characterized in that, One end of the hydraulic pipe male connector (1) is fixedly connected to the inlet pipe (2), and the other end of the hydraulic pipe male connector (1) is fixedly connected to the cylinder (3). The end of the cylinder (3) away from the hydraulic pipe male connector (1) is fixedly connected to the frustum column (4). The outer walls of the cylinder (3) and the frustum column (4) are jointly fitted with the hydraulic pipe female connector (7). One end of the hydraulic pipe female connector (7) is fixedly connected to the outlet pipe (8). The outer wall of the hydraulic pipe male connector (1) is fitted with a rotating sleeve (10). The rotating sleeve (10) is arranged on the outer wall of the outlet pipe (8). Two guiding mechanisms are provided between the cylinder (3) and the hydraulic pipe female connector (7). Multiple sealing mechanisms are provided between the frustum column (4) and the hydraulic pipe female connector (7).

2. A hydraulic hose fitting for a hydraulic hose assembly according to claim 1, characterized in that, The guiding mechanism includes two fixed blocks (5) that are fixedly connected to the outer wall of the cylinder (3). The inner wall of the hydraulic pipe connector (7) has two guide grooves (9). The two fixed blocks (5) pass through the corresponding guide grooves (9) and are slidably connected to them.

3. A hydraulic hose fitting for a hydraulic hose assembly according to claim 1, characterized in that, The sealing mechanism includes multiple limiting mounting grooves (16) opened on the outer wall of the frustum column (4), and each limiting mounting groove (16) is equipped with a sealing element (6) on its inner wall. The multiple sealing elements (6) are arranged to abut against the inner wall of the hydraulic pipe female connector (7).

4. A hydraulic hose fitting for a hydraulic hose assembly according to claim 1, characterized in that, The rotating sleeve (10) has a through opening (11), and the liquid outlet pipe (8) is arranged through the through opening (11).

5. A hydraulic hose fitting for a hydraulic hose assembly according to claim 1, characterized in that, The outer wall of the hydraulic pipe male connector (1) and the inner wall of the rotating sleeve (10) are threaded together. The outer wall of the hydraulic pipe male connector (1) is provided with an external thread (12), and the inner wall of the rotating sleeve (10) is provided with an internal thread (13) that mates with the external thread (12).

6. A hydraulic hose fitting for a hydraulic hose assembly according to claim 1, characterized in that, The outer wall of the rotating sleeve (10) is provided with a plurality of first friction protrusions (14), and the outer wall of the hydraulic pipe male connector (1) is provided with a plurality of second friction protrusions (15).

Images