Marine low-pressure small-flow quick connector

Abstract

The utility model discloses a low-pressure small-flow quick connector for ship, which relates to the technical field of quick connectors and comprises a main body shell and a connector, flow channels are arranged in the main body shell and the connector, butt joint grooves communicated with the flow channels are arranged at the end of the inner wall of the main body shell, movable rings are arranged in the middle of the inner wall of each flow channel in a sliding mode, and fixed rings are fixedly arranged at one ends of the flow channels. A first spring is inserted between the fixed ring and the movable ring, an ejector rod is inserted in the end, away from the fixed ring, of the movable ring, the end of the ejector rod blocks the end of the flow channel, and the butt joint groove of the body shell is used for fixing a buckle assembly of the connector. According to the utility model, the main body shell and the joint are arranged, the joint is inserted into the main body shell during connection, the joint is clamped through the ball on the buckle assembly, and the clamping force of the ball is realized through the spring, so that not only is the structure simple, but also the quick assembly and disassembly can be realized only by controlling the extension and retraction of the spring.

Description

Technical Field

[0001] The utility model relates to the field of quick connectors, in particular to a marine low-pressure and small-flow quick connector. Background Art

[0002] A marine low-pressure and small-flow quick connector is a mechanical device specifically designed for ships to quickly connect and disconnect low-pressure and small-flow pipelines.

[0003] At present, most of the low-pressure and small-flow connectors used for fluids or gases on ships use flange or threaded connections. The flange and threaded connection methods not only require tools and have a slow installation speed, but also the air on ships contains a large amount of moisture, which will cause rust on the threads and increase the difficulty of installation and disassembly. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the drawback of the troublesome installation and disassembly of the existing marine low-pressure and small-flow connectors, and to propose a marine low-pressure and small-flow quick connector.

[0005] In order to solve the problems existing in the prior art, the utility model adopts the following technical solutions:

[0006] A marine low-pressure and small-flow quick connector includes a main body shell and a connector. Flow channels are provided in the main body shell and the connector. A docking groove communicating with the flow channel is provided at the end of the inner wall of the main body shell. A moving ring is slidably provided in the middle of the inner wall of each flow channel. A fixed ring is fixedly provided at one end of each flow channel. A first spring is inserted between the fixed ring and the moving ring. A push rod is inserted at one end of the moving ring away from the fixed ring. The end of the push rod blocks the end of the flow channel. The docking groove position of the main body shell is used to fix the buckle assembly of the connector.

[0007] Preferably, the buckle assembly includes a driving ring sleeved on the outer wall of the main body shell. A retaining ring is fixedly provided on the outer wall of the main body shell. A limiting ring is fixedly provided on the inner wall of the driving ring. A second spring is provided between the limiting ring and the retaining ring. The second spring is sleeved on the outer wall of the main body shell. A plurality of V-shaped lifting grooves are annularly provided on the inner wall of the docking groove. A spherical ball is provided in each lifting groove. A pushing ring is fixedly provided on the outer wall of the connector.

[0008] Preferably, a first sealing ring and a first rubber ring are respectively sleeved on the push rod and the fixed ring. Both the first sealing ring and the first rubber ring are in fit with the inner wall of the flow channel.

[0009] Preferably, a third sealing ring is clamped on the inner wall at the intersection of the docking groove and the flow channel.

[0010] Preferably, an installation groove is provided on the outer wall of the main body shell, and a second rubber ring is sleeved in the installation groove.

[0011] Preferably, a threaded groove is provided on the inner wall at one end inside the joint.

[0012] Preferably, fixing grooves are provided on the inner wall of the main body housing and the inner wall of the joint, and the first rubber ring is clamped in the fixing groove.

[0013] Preferably, one side of the limiting ring is provided with an inclined surface.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. In the present utility model, by providing two parts, namely the main body housing and the joint, when connecting, the joint is inserted into the main body housing, and the joint is clamped by the spherical ball on the buckle assembly. The force for the spherical ball to clamp is realized through the spring. It not only has a simple structure, but also only needs to control the expansion and contraction of the spring to achieve quick installation and disassembly.

[0016] 2. In the present utility model, by providing a plurality of sealing rings inside the main body housing and the joint, after the joint and the main body housing are connected, fluids and gases can only flow internally, improving the sealing performance after the connection of the joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a front view structural diagram of the main body housing and the joint of the present utility model;

[0020] Figure 3 is an exploded structural diagram inside the main body housing of the present utility model;

[0021] Figure 4 is an exploded structural diagram inside the joint of the present utility model.

[0022] Reference numerals in the figures: 1. Main body housing; 11. Joint; 12. Flow channel; 13. Moving ring; 14. Fixed ring; 15. First spring; 16. Thumb rod; 17. Docking groove; 2. Driving ring; 21. Retaining ring; 22. Limiting ring; 23. Second spring; 24. Lifting groove; 25. Spherical ball; 26. Pushing ring; 3. First sealing ring; 31. First rubber ring; 4. Third sealing ring; 5. Installation groove; 51. Second rubber ring; 6. Threaded groove; 7. Fixing groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0024] Embodiment: This embodiment provides a marine low-pressure small-flow quick connector. Refer to Figures 1-4 , specifically, it includes a main body housing 1 and a connector 11. A flow channel 12 is provided in the main body housing 1 and the connector 11. A docking groove 17 communicating with the flow channel 12 is provided at the end of the inner wall of the main body housing 1. A moving ring 13 is slidably provided in the middle of the inner wall of the flow channel 12. A fixed ring 14 is fixedly provided at one end of the flow channel 12. A first spring 15 is inserted between the fixed ring 14 and the moving ring 13. A push rod 16 is inserted at one end of the moving ring 13 away from the fixed ring 14. The end of the push rod 16 blocks the end of the flow channel 12. The docking groove 17 position of the main body housing 1 is used to fix the buckle assembly of the connector 11;

[0025] The flow channels 12 in the main body housing 1 and the connector 11 are of the same size, while the area of the docking groove 17 is larger than that of the flow channel 12. The end of the connector 11 is inserted into the main body housing 1. The connector 11 passes through the docking groove 17. The end of the push rod 16 in the connector 11 and the main body housing 1 comes into contact. After the two push rods 16 come into contact, they respectively move towards the fixed ring 14 in the flow channel 12. The push rod 16 drives the moving ring 13 to move synchronously and compresses the first spring 15 on one side of the fixed ring 14. The initial position of the push rod 16 fits with the inner wall of the end of the flow channel 12. When the push rod 16 moves away from the inner wall end of the flow channel 12, the flow channels 12 in the main body housing 1 and the connector 11 are communicated. Then, the position of the connector 11 is fixed through the buckle assembly to achieve quick connection. Since the connector 11 is used for low pressure and small flow, the opened area of the flow channel 12 is completely applicable; during use, first connect the pipelines to the ends of the main body housing 1 and the connector 11 respectively. After the fluid or gas enters the flow channel 12, it will pass through the inside of the moving ring 13, the first spring 15, and the fixed ring 14 and reach the other end. After the connector 11 and the main body housing 1 are separated by the first spring 15, the push rod 16 quickly resets.

[0026] During the specific implementation process, as Figure 3 and Figure 4 shown, the buckle assembly includes a driving ring 2 sleeved on the outer wall of the main body housing 1. A retaining ring 21 is fixedly provided on the outer wall of the main body housing 1. A limiting ring 22 is fixedly provided on the inner wall of the driving ring 2. A second spring 23 is provided between the limiting ring 22 and the retaining ring 21. The second spring 23 is sleeved on the outer wall of the main body housing 1. A plurality of V-shaped lifting grooves 24 are annularly formed on the inner wall of the docking groove 17. A ball 25 is provided in each of the lifting grooves 24. A pushing ring 26 is fixedly provided on the outer wall of the connector 11. One side of the limiting ring 22 has an inclined surface. A third sealing ring 4 is clamped on the inner wall at the intersection of the docking groove 17 and the flow channel 12. An installation groove 5 is formed on the outer wall of the main body housing 1. A second rubber ring 51 is sleeved in the installation groove 5;

[0027] Before the joint 11 is inserted into the docking groove 17 of the main body housing 1, first move the drive ring 2 towards the middle of the main body housing 1. The movement of the drive ring 2 will squeeze the second spring 23 between the limit ring 22 and the retaining ring 21. The limit ring 22 inside the drive ring 2 moves away from above the lifting groove 24. When the joint 11 enters the docking groove 17, the push ring 26 on the outer wall of the joint 11 contacts the spherical ball 25 and pushes the spherical ball 25 towards the outer wall of the lifting groove 24. The upper end of the spherical ball 25 is located at the inclined surface position of the limit ring 22. When the two ejector rods 16 contact and push each other, the limit ring 22 on the joint 11 is located on one side of the spherical ball 25. Then release the drive ring 2. Through the thrust of the second spring 23, the drive ring 2 is reset. The limit ring 22 is located above the lifting groove 24 to fix the position of the spherical ball 25, and the spherical ball 25 blocks the push ring 26 again to fix the joint 11; the third sealing ring 4 seals between the outer wall of the joint 11 and the inner wall of the docking groove 17 to prevent fluid or gas from leaking. The second rubber ring 51 is used to block and seal the drive ring 2 for easy disassembly; since the lifting groove 24 is V-shaped and communicates with the docking groove 17, the lower end of the spherical ball 25 will pass through the lifting groove 24 and be located in the docking groove 17.

[0028] In the specific implementation process, such as Figure 3 and Figure 4 shown, a first sealing ring 3 and a first rubber ring 31 are respectively sleeved on the ejector rod 16 and the fixing ring 14. Both the first sealing ring 3 and the first rubber ring 31 are in contact with the inner wall of the flow channel 12. Fixing grooves 7 are provided on the inner walls of both the main body housing 1 and the joint 11. The first rubber ring 31 is clamped in the fixing groove 7;

[0029] The first rubber ring 31 is installed in the fixing groove 7 to fix the fixing ring 14 and facilitate the disassembly of the fixing ring 14.

[0030] In the specific implementation process, such as Figure 2 and Figure 4 shown, a threaded groove 6 is provided on the inner wall at one end inside the joint 11; the threaded groove 6 is convenient for connecting with other pipelines. Since the main body housing 1 and the joint 11 need to be quickly installed and disassembled, after the main body housing 1 and the joint 11 are connected to other pipelines through the threaded groove 6, they are only disassembled when damaged.

[0031] Specifically, the working principle and operation method of the present utility model are as follows:

[0032] Move the driving ring 2 towards the middle of the main body housing 1. When the driving ring 2 moves, it will squeeze the second spring 23 between the limiting ring 22 and the retaining ring 21. When the limiting ring 22 inside the driving ring 2 moves away from above the lifting groove 24 and the connector 11 enters the docking groove 17, the pushing ring 26 on the outer wall of the connector 11 contacts the spherical ball 25 and pushes the spherical ball 25 towards the outer wall of the lifting groove 24. The connector 11 contacts the end of the ejector rod 16 inside the main body housing 1. After the two ejector rods 16 contact, they move towards the fixing ring 14 in the flow channel 12 respectively. The ejector rod 16 drives the moving ring 13 to move synchronously and squeezes the first spring 15 on one side of the fixing ring 14. The initial position of the ejector rod 16 fits with the inner wall of the end of the flow channel 12. When the ejector rod 16 moves away from the inner wall end of the flow channel 12, the flow channels 12 in the main body housing 1 and the connector 11 are communicated. Then release the driving ring 2. Through the thrust of the second spring 23, the driving ring 2 is reset. The limiting ring 22 is located above the lifting groove 24 to fix the position of the spherical ball 25, and the spherical ball 25 blocks the pushing ring 26, realizing the quick installation of the connector 11.

[0033] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, with equivalent substitution or change, should be covered within the protection scope of the present invention.

Claims

1. A marine low-pressure and low-flow quick connector, comprising a main housing (1) and a connector (11), characterized in that: A flow channel (12) is provided in the main shell (1) and the joint (11); a docking groove (17) connected to the flow channel (12) is provided at the end of the inner wall of the main shell (1); a moving ring (13) is slidably provided in the middle of the inner wall of the flow channel (12); a fixed ring (14) is fixedly provided at one end of the flow channel (12); a first spring (15) is inserted between the fixed ring (14) and the moving ring (13); a push rod (16) is inserted at the end of the moving ring (13) away from the fixed ring (14); the end of the push rod (16) blocks the end of the flow channel (12); and the docking groove (17) of the main shell (1) is used to fix the buckle assembly of the joint (11).

2. A marine low-pressure and low-flow quick connector according to claim 1, characterized in that: The buckle assembly comprises a driving ring (2) sleeved on the outer wall of the main shell (1); a retaining ring (21) is fixedly provided on the outer wall of the main shell (1); a limiting ring (22) is fixedly provided on the inner wall of the driving ring (2); a second spring (23) is provided between the limiting ring (22) and the retaining ring (21); the second spring (23) is sleeved on the outer wall of the main shell (1); a plurality of V-shaped lifting grooves (24) are formed in an annular shape on the inner wall of the docking groove (17); a ball (25) is provided in each of the lifting grooves (24); and a push ring (26) is fixedly provided on the outer wall of the joint (11).

3. A marine low-pressure and low-flow quick connector according to claim 1, characterized in that: The push rod (16) and the fixing ring (14) are respectively sleeved with a first sealing ring (3) and a first rubber ring (31), and the first sealing ring (3) and the first rubber ring (31) are both in contact with the inner wall of the flow channel (12).

4. A marine low-pressure and low-flow quick connector according to claim 1, characterized in that: A third sealing ring (4) is provided on the inner wall of the intersection of the docking groove (17) and the flow channel (12).

5. A marine low-pressure and low-flow quick connector according to claim 1, characterized in that: The outer wall of the main body shell (1) is provided with a mounting groove (5), and a second rubber ring (51) is sleeved in the mounting groove (5).

6. A marine low-pressure and low-flow quick connector according to claim 1, characterized in that: A thread groove (6) is provided on the inner wall of one end of the joint (11).

7. A marine low-pressure and low-flow quick connector according to claim 3, characterized in that: The inner wall of the main body shell (1) and the inner wall of the joint (11) are both provided with a fixing groove (7), and the first rubber ring (31) is clamped in the fixing groove (7).

8. A marine low-pressure and low-flow quick connector according to claim 2, characterized in that: A slope is provided on one side of the limiting ring (22).

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