Rubber-stripping-free fixing structure for hydraulic joint

Abstract

The utility model discloses a rubber stripping-free fixing structure for a hydraulic joint, which comprises the hydraulic joint and a combined connecting nut, the combined connecting nut is movably mounted on the outer wall surface of the hydraulic joint, and an extrusion type adaptive connecting and fixing structure is mounted on the hydraulic joint; the utility model relates to the technical field of hydraulic joints, and has the beneficial effects that the problems that a protective layer on the outer layer of a rubber tube is usually required to be stripped or complicated pretreatment is required to be performed during the installation of the conventional hydraulic joint so as to ensure the tight fixation of the joint and the rubber tube, the rubber stripping operation wastes time and labor, and the rubber tube is possibly damaged due to misoperation; the sealing performance is reduced, the service life is prolonged, the sealing device is difficult to be suitable for sealing connection of hydraulic rubber pipes with different sizes and specifications, and loosening or untight sealing is prone to occurring in the installation process.

Description

Technical Field

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

[0002] Hydraulic fittings are key components used to connect pipelines in hydraulic systems. Their sealing performance and reliability directly affect the system's working performance. Existing hydraulic fittings usually require the removal of the outer protective layer of the hose or complex pretreatment during installation to ensure a tight fixation between the fitting and the hose. The hose removal operation is not only time-consuming and labor-intensive, but may also damage the hose due to improper operation, reducing sealing performance and service life. It is difficult to apply to the sealing connection of hydraulic hoses of different sizes and specifications, and loosening or poor sealing may easily occur during installation. Utility Model Content

[0003] To achieve the above objectives, this utility model is implemented through the following technical solution: a hydraulic connector adhesive-free fixing structure, comprising: a hydraulic connector and a combined connecting nut, the combined connecting nut being movably installed on the outer wall of the hydraulic connector, and a compression-type adaptive connection fixing structure being installed on the hydraulic connector;

[0004] The extrusion-type adaptive connection and fixing structure includes: a connecting pipe, a first combined fixing pipe, a pair of mounting blocks, a pair of combined adjusting threaded rods, a second combined fixing pipe, a combined cavity, a pair of support frames, and a pair of combined connecting blocks;

[0005] The connecting pipe is installed on the hydraulic connector, the first combination fixing pipe is installed at the pipe opening of the connecting pipe, a pair of mounting blocks are installed on the outer wall of the connecting pipe, a pair of combination adjusting threaded rods are movably installed on the pair of mounting blocks, the combination cavity is opened inside the second combination fixing pipe, a pair of support frames are installed on the outer wall of the second combination fixing pipe, a pair of combination connecting blocks are installed on the pair of support frames, and the second combination fixing pipe is installed on the pair of combination adjusting threaded rods through a pair of combination connecting blocks.

[0006] Preferably, the first combination of fixed pipes has a variable diameter structure.

[0007] Preferably, the combined cavity has a variable diameter structure and the wall size is the same as the outer diameter of the first combined fixed pipe.

[0008] Preferably, a sealing ring is provided on the inner wall surface of the combined cavity.

[0009] Preferably, a pair of combined adjusting threaded rods are mounted on a pair of mounting blocks via rotating sleeves.

[0010] Preferably, a pair of combined connecting blocks are provided with combined internal threads.

[0011] Beneficial effects

[0012] This utility model provides a hydraulic connector fixing structure that eliminates the need for peeling the outer protective layer, offering the following advantages: This solution utilizes a compression-type adaptive connection fixing structure, directly fixing the hose without removing the outer protective layer, thus avoiding hose damage, simplifying installation steps, and improving construction efficiency. The variable diameter design of the first and second combination fixing pipes, combined with the matching dimensions of the combination cavity, allows for adaptation to hoses of different diameters, enhancing versatility. The sealing ring within the combination cavity further improves the sealing performance between the connector and the hose, preventing hydraulic medium leakage and ensuring stable system operation. By rotating the combined adjusting threaded rod, the position of the second combination fixing pipe can be flexibly adjusted, achieving uniform compression and fixing of the hose. The operation is simple and the fixation is secure, solving the problem that existing hydraulic connectors typically require peeling off the outer protective layer of the hose or undergoing complex pretreatment during installation to ensure a tight fixation between the connector and the hose. Peeling is not only time-consuming and labor-intensive but can also damage the hose due to improper operation, reducing sealing performance and service life. It is also difficult to apply to sealing connections of hydraulic hoses of different sizes and specifications, and problems such as loosening or incomplete sealing easily occur during installation. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a hydraulic joint adhesive-free fixing structure according to the present invention.

[0014] Figure 2 This is a front view schematic diagram of the hydraulic joint adhesive-free fixing structure described in this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the second combined fixing pipe of the hydraulic joint adhesive-free fixing structure described in this utility model.

[0016] Figure 4 This is a cross-sectional view of the second combined fixing pipe of the hydraulic joint adhesive-free fixing structure described in this utility model.

[0017] In the diagram: 1-Hydraulic connector; 2-Combined connecting nut; 3-Connecting pipe; 4-First combined fixing pipe; 5-Mounting block; 6-Combined adjusting threaded rod; 7-Second combined fixing pipe; 8-Combined cavity; 9-Support frame; 10-Combined connecting block; 11-Sealing ring; 12-Rotating sleeve. Detailed Implementation

[0018] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Example: Please refer to Figure 1-4This utility model provides a technical solution: a hydraulic connector adhesive-free fixing structure. This solution takes into account that existing hydraulic connectors require the outer layer of the hose to be peeled off due to size issues when connecting with hydraulic hoses. The process is very cumbersome and the peeling process will affect the strength of the hose and cannot guarantee the sealing of the hydraulic system connection. Based on the above, this invention sets up the following technical means.

[0020] Hydraulic connector 1 provides overall support for the equipment. During use, the hydraulic hose is inserted into the first combined fixed pipe 4, ensuring the hose end is tightly fitted against the outer wall of the first combined fixed pipe 4. Then, the combined adjusting threaded rod 6, mounted on the outer wall of the connecting pipe 3 via the rotating sleeve 12, is rotated. The combined adjusting threaded rod 6 engages with the combined connecting block 10, mounted on the outer wall of the second combined fixed pipe 7 via the support frame 9, causing the second combined fixed pipe 7 to move inward. The hydraulic hose is sealed and fixed by the compression of the combined cavity 8 inside the second combined fixed pipe 7 and the first combined fixed pipe 4. Simultaneously, when the second combined fixed pipe 7 compresses and fixes the hydraulic hose, the sealing ring 11 further increases the deformation and fit of the hydraulic hose, further improving the sealing performance between the hose and the connector. Finally, the hydraulic connector 1 is connected to the hydraulic system via the combined connecting nut 2, thus achieving a sealed connection and fixation between the hydraulic connector 1 and the hydraulic hose.

[0021] More specifically, the connecting pipe 3 is installed on the hydraulic connector 1, the first combined fixing pipe 4 is installed at the pipe opening of the connecting pipe 3, a pair of mounting blocks 5 are installed on the outer wall of the connecting pipe 3, a pair of combined adjusting threaded rods 6 are movably installed on the pair of mounting blocks 5, the combined cavity 8 is opened inside the second combined fixing pipe 7, a pair of support frames 9 are installed on the outer wall of the second combined fixing pipe 7, a pair of combined connecting blocks 10 are installed on the pair of support frames 9, and the second combined fixing pipe 7 is installed on the pair of combined adjusting threaded rods 6 through the pair of combined connecting blocks 10.

[0022] In the specific implementation process, the first combined fixed pipe 4 is further designed as a variable diameter structure.

[0023] In the specific implementation process, the combined cavity 8 is a variable diameter structure and the wall size is the same as the outer diameter of the first combined fixed pipe 4.

[0024] In the specific implementation process, a sealing ring 11 is further provided on the inner wall surface of the combined cavity 8.

[0025] In the specific implementation process, a pair of combined adjusting threaded rods 6 are further mounted on a pair of mounting blocks 5 via rotating sleeves 12.

[0026] In the specific implementation process, furthermore, a pair of combined connecting blocks 10 are provided with combined internal threads.

[0027] 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 hydraulic joint stripping-free fixing structure, comprising a hydraulic joint (1) and a combined connecting nut (2), characterized in that, The combined connecting nut (2) is movably installed on the outer wall surface of the hydraulic connector (1), and the hydraulic connector (1) is provided with an extrusion type adaptive connecting fixing structure. The extrusion type adaptive connecting fixing structure comprises a connecting pipe (3), a first combined fixing pipe (4), a pair of mounting blocks (5), a pair of combined adjusting threaded rods (6), a second combined fixing pipe (7), a combined cavity (8), a pair of supporting frames (9) and a pair of combined connecting blocks (10). The connecting pipe (3) is installed on the hydraulic connector (1), the first combined fixing pipe (4) is installed at the pipe opening position of the connecting pipe (3), the pair of mounting blocks (5) are installed on the outer side wall surface of the connecting pipe (3), the pair of combined adjusting threaded rods (6) are movably installed on the pair of mounting blocks (5), the combined cavity (8) is arranged in the second combined fixing pipe (7), the pair of supporting frames (9) are installed on the outer wall surface of the second combined fixing pipe (7), the pair of combined connecting blocks (10) are installed on the pair of supporting frames (9), and the second combined fixing pipe (7) is installed on the pair of combined adjusting threaded rods (6) through the pair of combined connecting blocks (10).

2. The hydraulic fitting of claim 1, wherein, The first combined fixing pipe (4) is a variable diameter structure.

3. The hydraulic fitting of claim 1, wherein the seal gland comprises a seal gland body and a seal gland cap, the seal gland body and the seal gland cap being configured to be coupled together to form the seal gland. The combined cavity (8) is a variable diameter structure and has the same outer diameter size as the first combined fixing pipe (4).

4. The hydraulic joint adhesive-free fixing structure according to claim 1, characterized in that, The inner wall surface of the combined cavity (8) is provided with a sealing ring (11).

5. The hydraulic joint adhesive-free fixing structure according to claim 1, characterized in that, The pair of combined adjusting threaded rods (6) are installed on the pair of mounting blocks (5) through a rotating sleeve (12).

6. The hydraulic fitting of claim 1, wherein the seal is a seal ring. The pair of combined connecting blocks (10) are provided with combined internal threads.

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