A hydraulic fitting with high sealing

Abstract

The utility model discloses a kind of hydraulic connector with high sealing property belong to hydraulic connector technical field, comprising: two connector main body and two threaded sleeves;Two external threads are respectively arranged in the outer side of two connector main body, and two threaded sleeves are respectively connected with two connector main body by two external threads threadedly;Multiple installation ports are respectively arranged in one side of two connector main bodies;The utility model, by the threaded sleeve being arranged in the outer side of hydraulic connector, and the abutment plate in multiple installation ports, when threaded sleeve rotates, multiple abutment plates and multiple clamping plates can be simultaneously driven to uniformly contract and closely adhere to the outer wall of pipeline of different size specifications, cooperate with the rubber ring being arranged in the form of inclination in inner wall, the inclined surface structure forms progressive compression when pipeline is inserted, which enhances the adhesion of sealing surface, and further improves sealing reliability by absorbing tolerance error through elastic deformation, so that the applicability of the hydraulic connector with high sealing property is better.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic joint technology, and specifically relates to a hydraulic joint with high sealing performance. Background Technology

[0002] High-sealing hydraulic fittings are devices used to connect pipes, valves, pumps, and other components in hydraulic systems. Their core function is to ensure zero or extremely low leakage in the hydraulic system under high pressure, high temperature, or complex operating conditions. They are typically made of high-strength alloy steel, stainless steel, or corrosion-resistant alloys to ensure no deformation under high pressure. Furthermore, they achieve multi-stage sealing through metal-to-metal or elastic seals. High-sealing hydraulic fittings not only prevent environmental pollution, reduced system efficiency, or equipment failure caused by hydraulic oil leakage, but also reduce pressure loss, ensuring stable operation of the hydraulic system.

[0003] Chinese Patent Publication No. CN216590377U discloses a hydraulic connector with high sealing performance, including a pipe body. A screw block is fixedly connected to the middle of the pipe body. The screw block is located on the outside of the pipe body and surrounds the pipe body. The two ends of the pipe body are a first end and a second end, respectively. A first slot is provided on the end face of the screw block near the first end. The first slot is annular and surrounds the pipe body. The central axis of the first slot is on the same straight line as the central axis of the pipe body. The first slot is located on the edge of the screw block near the central axis of the pipe body. The side of the first slot away from the central axis of the pipe body is cylindrical. The outer surface of the first end of the pipe body is provided with a first thread. The surface of the first end inside the first slot is smooth.

[0004] In practical use, this utility model can be effectively connected to pipelines and ensures sealing performance with its structural advantages. However, the existing high-sealing hydraulic joints have fixed size specifications, which leads to significant limitations in matching hydraulic joints with pipelines. It is difficult to adapt to pipelines of different sizes and specifications, forcing engineers to replace the hydraulic joints with those that are perfectly matched to the target pipeline when faced with changes in pipeline size. This not only increases the cost of equipment connection, but also delays the project progress due to the adaptation process, making the applicability of high-sealing hydraulic joints somewhat lacking. Utility Model Content

[0005] This invention proposes a hydraulic joint with high sealing performance to solve the problem that existing hydraulic joints are difficult to adapt to pipes of different sizes and specifications.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic joint with high sealing performance, comprising:

[0007] Two connector bodies and two threaded sleeves;

[0008] Two external threads are respectively provided on the outside of the two connector bodies, and the two threaded sleeves are respectively connected to the two connector bodies through the two external threads;

[0009] Multiple mounting ports are respectively provided through one side of the two connector bodies, and each of the multiple mounting ports is provided with a matching abutment plate. Each of the multiple abutment plates located in the connector body is provided with a clamping plate at its end.

[0010] Two limiting grooves are respectively opened in the two connector bodies. Each of the two limiting grooves is provided with a matching rubber ring. The inner walls of the two rubber rings are inclined. One end of each of the two rubber rings is provided with a limiting ring that matches the inner wall of the connector body.

[0011] In order to connect with pipes of different sizes and specifications, the multiple contact plates are all inclined at one end and abut against one end of the two threaded sleeves respectively, and one side of the inner wall of the two threaded sleeves is arc-shaped.

[0012] In a preferred embodiment, each of the plurality of contact plates is provided with a positioning groove, and each of the plurality of mounting openings is provided with a positioning plate adapted to the positioning groove. Each of the plurality of positioning plates is provided with a positioning spring on one side, and the other end of the positioning spring is provided at one end of the positioning groove.

[0013] In a preferred embodiment, each of the plurality of mounting ports is provided with a sealing layer, and the plurality of sealing layers respectively abut against the outer side of the plurality of contact plates.

[0014] In a preferred embodiment, each of the two limiting grooves is provided with a limiting spring, and one end of each of the two limiting springs is respectively disposed at one end of the two rubber rings.

[0015] In a preferred embodiment, a sealing ring is provided on the outer side of each of the two limiting rings, and the two sealing rings abut against the inner wall of the two connector bodies respectively.

[0016] In a preferred embodiment, each of the two connector bodies has an annular groove at one end, and an extension tube adapted to the annular groove is provided between the two connector bodies. The two ends of the extension tube are respectively located in the two annular grooves and are slidably connected to the sidewalls of the annular grooves. Multiple fixing bolts are provided through one side of each of the two annular grooves, and the multiple fixing bolts abut against both sides of the extension tube. A sealing strip is provided on one side of each of the two annular grooves, and the two sealing strips abut against the inner wall of the extension tube.

[0017] To further improve the firmness of the connection between the hydraulic joint and the pipeline, multiple adjusting plates are rotatably connected to the inner walls of both limiting rings. Each of the multiple adjusting plates has an arc-shaped fixing block at one end. Multiple inclined fixing plates are provided on the inner walls of both joint bodies. Each of the multiple adjusting plates has an abutting wheel rotatably connected to one end. The multiple abutting wheels abut against one side of the multiple fixing plates respectively.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model, through the threaded sleeve set on the outside of the hydraulic connector and the abutment plates in multiple installation ports, can simultaneously drive multiple abutment plates and multiple clamping plates to uniformly contract and tightly fit against the outer wall of pipes of different sizes and specifications when the threaded sleeve rotates. In conjunction with the rubber ring with the inclined inner wall, its inclined structure forms a progressive compression when the pipe is inserted, which not only enhances the fit of the sealing surface, but also absorbs tolerance errors through elastic deformation, further improving the sealing reliability, thereby making the hydraulic connector with high sealing performance more applicable.

[0020] 2. This utility model, through multiple rotatable adjusting plates set inside the two limiting rings, when the pipe is inserted into the connector, in conjunction with multiple inclined fixing plates, can simultaneously drive multiple adjusting plates to rotate, thereby pushing the fixing block connected at the end to precisely press against the inner wall of the pipe along the inclined direction, so that the fixing block and the inner wall of the pipe form multiple points of uniform contact, significantly enhancing the friction and fit, thereby ensuring the firmness and reliability of the connection between the hydraulic connector and the pipe. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main appearance of the structure of this utility model;

[0022] Figure 2 This is a schematic front cross-sectional view of the structure of this utility model;

[0023] Figure 3 This is a partial external view of the structure of this utility model;

[0024] Figure 4 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0025] In the diagram: 1. Connector body; 2. Threaded sleeve; 3. Mounting port; 4. Abutment plate; 5. Clamping plate; 6. Rubber ring; 7. Positioning plate; 8. Positioning spring; 9. Sealing layer; 10. Limiting spring; 11. Limiting ring; 12. Sealing ring; 13. Extension tube; 14. Fixing bolt; 15. Sealing strip; 16. Adjusting plate; 17. Fixing block; 18. Fixing plate; 19. Abutment wheel. Detailed Implementation

[0026] 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.

[0027] Example 1:

[0028] Please see Figure 1-4 This utility model provides a hydraulic joint with high sealing performance, comprising:

[0029] Two connector bodies 1 and two threaded sleeves 2;

[0030] Two external threads are respectively provided on the outside of the two connector bodies 1, and two threaded sleeves 2 are respectively threadedly connected to the two connector bodies 1 through the two external threads;

[0031] Multiple mounting ports 3 are respectively provided on one side of the two connector bodies 1. Each mounting port 3 is provided with a matching abutment plate 4. Each end of the multiple abutment plates 4 located in the connector body 1 is provided with a clamping plate 5.

[0032] Two limiting grooves are respectively opened in the two connector bodies 1. Each limiting groove is provided with a matching rubber ring 6. The inner walls of the two rubber rings 6 are inclined. One end of each rubber ring 6 is provided with a limiting ring 11 that matches the inner wall of the connector body 1.

[0033] Specifically, such as Figure 1 and Figure 2 As shown, one end of each of the multiple contact plates 4 is inclined and abuts against one end of each of the two threaded sleeves 2. One side of the inner wall of each of the two threaded sleeves 2 is arc-shaped.

[0034] Through its design, multiple inclined contact plates 4, together with two threaded sleeves 2 with arc-shaped inner walls, can simultaneously push multiple contact plates 4 to move when the two threaded sleeves 2 move to one side, thereby simultaneously driving multiple clamping plates 5 to move, so that multiple clamping plates 5 can simultaneously abut against the outside of pipes of different sizes and specifications, achieving the effect of connecting pipes of different sizes and specifications.

[0035] Specifically, such as Figure 2 and Figure 4As shown, multiple contact plates 4 are provided with positioning grooves, and multiple mounting ports 3 are provided with positioning plates 7 that are adapted to the positioning grooves. The multiple positioning plates 7 are provided with multiple positioning grooves and are slidably connected to the side walls of the positioning grooves. The positioning plates 7 located in the multiple positioning grooves can restrict the movement of the contact plates 4 and prevent them from shifting their position when moving, thereby ensuring the stability of the multiple clamping plates 5 in fixing the pipeline. Each of the multiple positioning plates 7 is provided with a positioning spring 8 on one side, and the other end of the positioning spring 8 is provided at one end of the positioning groove. The positioning spring 8 can drive the multiple contact plates 4 and the multiple clamping plates 5 to return to their original positions when the threaded sleeve 2 is separated from the contact plate 4.

[0036] Specifically, such as Figure 2 and Figure 4 As shown, multiple mounting ports 3 are provided with sealing layers 9, and multiple sealing layers 9 abut against the outside of multiple contact plates 4. The multiple sealing layers 9 located in the mounting ports 3 can ensure the sealing of the hydraulic joint and prevent water leakage.

[0037] Specifically, such as Figure 2 and Figure 3 As shown, each of the two limiting grooves is equipped with a limiting spring 10. One end of each limiting spring 10 is respectively set at one end of each of the two rubber rings 6. The two limiting springs 10 can respectively limit the position of the two rubber rings 6, so that the two rubber rings 6 can always press against the end of the pipe, ensuring the sealing of the hydraulic joint and the pipe connection.

[0038] Specifically, such as Figure 2 and Figure 3 As shown, sealing rings 12 are provided on the outer side of the two limiting rings 11. The two sealing rings 12 abut against the inner wall of the two connector bodies 1 respectively. The sealing rings 12 can not only further ensure the sealing of the hydraulic connector and the pipeline connection, but also prevent water from entering the limiting groove and affecting the limiting spring 10.

[0039] Specifically, such as Figure 1 and Figure 2 As shown, each of the two connector bodies 1 has an annular groove at one end. An extension tube 13, adapted to the annular groove, is provided between the two connector bodies 1. Both ends of the extension tube 13 are located within the two annular grooves and are slidably connected to the sidewalls of the annular grooves. The extension tube 13 between the two connector bodies 1 allows for flexible adjustment of the hydraulic connector's length, enabling it to adapt to different pipe connection scenarios. Multiple fixing bolts 14 are provided through one side of each of the two annular grooves. These bolts abut against both sides of the extension tube 13, restricting its position and thus fixing the size of the hydraulic connector after length adjustment. A sealing strip 15 is provided on one side of each of the two annular grooves, abutting against the inner wall of the extension tube 13. The sealing strips 15 ensure the sealing of the connection between the connector body 1 and the extension tube 13, preventing leakage.

[0040] Example 2:

[0041] Please see Figure 1-4 This utility model provides a hydraulic joint with high sealing performance, comprising:

[0042] Two connector bodies 1 and two threaded sleeves 2;

[0043] Two external threads are respectively provided on the outside of the two connector bodies 1, and two threaded sleeves 2 are respectively threadedly connected to the two connector bodies 1 through the two external threads;

[0044] Multiple mounting ports 3 are respectively provided on one side of the two connector bodies 1. Each mounting port 3 is provided with a matching abutment plate 4. Each end of the multiple abutment plates 4 located in the connector body 1 is provided with a clamping plate 5.

[0045] Two limiting grooves are respectively opened in the two connector bodies 1. Each limiting groove is provided with a matching rubber ring 6. The inner walls of the two rubber rings 6 are inclined. One end of each rubber ring 6 is provided with a limiting ring 11 that matches the inner wall of the connector body 1.

[0046] Specifically, such as Figure 2 As shown, multiple adjusting plates 16 are rotatably connected to the inner walls of the two limiting rings 11. Each adjusting plate 16 has an arc-shaped fixing block 17 at one end. Each of the two connector bodies 1 has multiple inclined fixing plates 18 on the inner walls. Each adjusting plate 16 has a contact wheel 19 rotatably connected to one end. The contact wheels 19 abut against one side of the multiple fixing plates 18 respectively.

[0047] Through its design, when the connector body 1 is connected to the pipeline, the pipeline will push the rubber ring 6 and the limiting ring 11 inside the connector body 1 to move. The multiple limiting rings 11 will drive the multiple adjusting plates 16 to move respectively. The multiple adjusting plates 16 will rotate under the action of multiple rotatable abutment wheels 19 and multiple inclined fixed plates 18, so that multiple fixed blocks 17 can simultaneously abut against the inner wall of the pipeline, further ensuring the firmness of the connection between the hydraulic connector and the pipeline.

[0048] See Figure 1-4When using a hydraulic connector to connect to a pipeline, the length of the hydraulic connector is first adjusted by the extension tube 13 according to the required connection scenario, and its length is fixed by multiple fixing bolts 14. Then, the end of the pipeline is installed into the connector body 1, so that the end of the pipeline abuts against the rubber ring 6 inside the connector body 1. Then, the threaded sleeve 2 is rotated. The movement of the threaded sleeve 2 will simultaneously push multiple abutment plates 4 to move. The multiple abutment plates 4 will drive multiple clamping plates 5 to move respectively, so that the multiple clamping plates 5 simultaneously abut against the outside of pipelines of different sizes and specifications, thereby enabling the hydraulic connector to effectively connect to the pipeline. When the pipeline is installed into the connector body 1, it will push the rubber ring 6 and the limit ring 11 to move. When the limit ring 11 moves, it will drive multiple adjusting plates 16 to move. With the help of multiple inclined fixing plates 18, multiple fixing blocks 17 can simultaneously abut against the inner wall of the pipeline, further improving the firmness of the connection between the hydraulic connector and the pipeline, thus making the hydraulic connector with high sealing performance more suitable for use.

[0049] 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 fitting having high sealing properties, characterized by, include: Two connector bodies (1) and two threaded sleeves (2); Two external threads are respectively provided on the outside of the two connector bodies (1), and the two threaded sleeves (2) are respectively threaded to the two connector bodies (1) through the two external threads; Multiple mounting ports (3) are respectively provided through one side of the two connector bodies (1). Each of the multiple mounting ports (3) is provided with a matching abutment plate (4). Each end of the multiple abutment plates (4) located in the connector body (1) is provided with a clamping plate (5). Two limiting grooves are respectively opened in the two connector bodies (1). Each of the two limiting grooves is provided with a matching rubber ring (6). The inner walls of the two rubber rings (6) are inclined. One end of each of the two rubber rings (6) is provided with a limiting ring (11) that matches the inner wall of the connector body (1).

2. The hydraulic fitting with high sealing property according to claim 1, characterized in that: One end of each of the multiple contact plates (4) is inclined and abuts against one end of each of the two threaded sleeves (2), and one side of the inner wall of each of the two threaded sleeves (2) is arc-shaped.

3. The hydraulic fitting with high sealing property according to claim 1, characterized in that: Each of the multiple contact plates (4) is provided with a positioning groove, and each of the multiple mounting ports (3) is provided with a positioning plate (7) that is adapted to the positioning groove. Each of the multiple positioning plates (7) is provided with a positioning groove and is slidably connected to the side wall of the positioning groove. Each of the multiple positioning plates (7) is provided with a positioning spring (8) on one side, and the other end of the positioning spring (8) is provided at one end of the positioning groove.

4. The hydraulic fitting with high sealing capability of claim 1, wherein: Each of the multiple mounting ports (3) is provided with a sealing layer (9), and the multiple sealing layers (9) respectively abut against the outside of the multiple contact plates (4).

5. The hydraulic fitting with high sealing capability of claim 1, wherein: Each of the two limiting grooves is provided with a limiting spring (10), and one end of each of the two limiting springs (10) is respectively set at one end of the two rubber rings (6).

6. The hydraulic fitting with high sealing capability of claim 1, wherein: Both of the limiting rings (11) are provided with sealing rings (12) on their outer sides, and the two sealing rings (12) abut against the inner walls of the two connector bodies (1) respectively.

7. The hydraulic fitting with high sealing capability of claim 1, wherein: Both of the two connector bodies (1) have an annular groove at one end. The two connector bodies (1) are connected by an extension tube (13) that is adapted to the annular groove. The two ends of the extension tube (13) are located in the two annular grooves and are slidably connected to the side wall of the annular groove. Multiple fixing bolts (14) are provided through one side of each of the two annular grooves. The multiple fixing bolts (14) abut against both sides of the extension tube (13). A sealing strip (15) is provided on one side of each of the two annular grooves. The two sealing strips (15) abut against the inner wall of the extension tube (13).

8. The hydraulic fitting with high sealing capability of claim 1, wherein: The inner walls of the two limiting rings (11) are rotatably connected to multiple adjusting plates (16), and one end of each of the multiple adjusting plates (16) is provided with an arc-shaped fixing block (17). The inner walls of the two connector bodies (1) are provided with multiple inclined fixing plates (18), and one end of each of the multiple adjusting plates (16) is rotatably connected to an abutting wheel (19). The multiple abutting wheels (19) abut against one side of the multiple fixing plates (18).

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