Threaded compression type quick connector

Abstract

The utility model relates to the technical field of hydraulic connectors, and provides a threaded compression type quick connector which comprises a connector body, a valve element and a valve sleeve, the connector body is provided with a fluid cavity for fluid conveying, the two ends of the connector body are a first connecting end and a second connecting end respectively, the outer surface of the first connecting end is provided with an external thread, and the outer surface of the second connecting end is provided with an internal thread. An internal thread is arranged on the inner wall of the second connecting end, and the connector body is in threaded connection with an external fluid pipeline; the valve sleeve is arranged in the fluid cavity, and the valve element is arranged in the valve sleeve and used for controlling the flow of fluid. The quick connector has the effect of improving the connection stability of the quick connector and the pipeline.

Description

Technical Field

[0001] The present application relates to the technical field of hydraulic joints, and in particular to a threaded compression quick joint. Background Art

[0002] A quick connector is a tool-free connector that allows pipes to be connected or disconnected. Because it features a two-way check function and leak-free disconnection, it is widely used in fields such as petroleum, metallurgy, hydropower, engineering machinery, shipbuilding, and electromechanical equipment.

[0003] In the related art, quick connectors mostly include a male connector and a female connector. One end of the male connector is sealed against one end of the female connector. The inner walls of the ends of the male connector and the female connector that are away from each other are both provided with a card groove, which is card-connected to the external pipe to achieve quick connection.

[0004] Regarding the above-mentioned related technologies, the force provided by the snap-on connection method is relatively insufficient. When fluid flows through the quick connector, the impact of the fluid flow can cause the male connector (or female connector) to fall off from the pipe, causing leakage, so it needs to be improved. Utility Model Content

[0005] In order to improve the stability of the connection between the quick connector and the pipeline, the present application provides a threaded compression quick connector.

[0006] The present application provides a threaded compression quick connector that adopts the following technical solution:

[0007] A threaded compression quick connector includes a connector body, a valve core and a valve sleeve. The connector body is provided with a fluid cavity for fluid transportation. The two ends of the connector body are respectively a first connecting end and a second connecting end. The outer surface of the first connecting end is provided with an external thread, and the inner wall of the second connecting end is provided with an internal thread. The connector body is threadedly connected to an external fluid pipeline; the valve sleeve is provided in the fluid cavity, and the valve core is provided in the valve sleeve and is used to control the flow rate of the fluid.

[0008] By adopting the above technical solution, the movement of the valve core can change the flow path of the fluid, thereby realizing the opening, closing or adjustment function of the quick connector; the valve sleeve and valve core are used in conjunction to ensure the smooth movement of the valve core while providing the necessary sealing performance.

[0009] During installation, the pipes to be connected can be screwed to the first connection end and the second connection end respectively, and the connection of the pipelines is achieved by relying on the action of the screw connection force, so that the joint is not easily separated from the pipe during the process of conveying fluid, thereby improving stability and safety.

[0010] Preferably, a sealing gasket is further included, and the sealing gasket is arranged between the valve core and the valve sleeve.

[0011] By adopting the above technical solution, the sealing gasket can further improve the sealing performance between the valve core and the valve sleeve, and reduce the possibility of fluid leakage.

[0012] Preferably, the sealing gasket is made of rubber material.

[0013] By adopting the above technical solution, the sealing gasket made of rubber material has good toughness and corrosion resistance, which can extend the service life of the sealing gasket.

[0014] Preferably, it further comprises a valve spring and a spring seat, wherein the spring seat is arranged in the fluid cavity and close to the valve sleeve, and the valve spring is arranged on the spring seat and connected to the valve core.

[0015] With the above technical solution, the valve spring is installed on the spring seat. The valve spring is a metal spring, usually made of spring steel. The valve core and the valve spring cooperate with each other by the preload force of the valve spring acting on the valve core, keeping it in the closed state.

[0016] When fluid enters the fluid cavity, fluid pressure acts on one end of the valve core, overcoming the preload of the valve spring and pushing the valve core to the other end, thereby connecting the pipeline. When the pipeline needs to be disconnected, the fluid pressure no longer acts on the valve core, and the preload of the valve spring causes the valve core to return to the closed position, cutting off the fluid flow path.

[0017] Preferably, a hole retaining ring is further included, which is arranged in the fluid cavity and close to the spring seat, and is used to limit the axial movement of the spring seat.

[0018] By adopting the above technical solution, a retaining ring is installed in the fluid cavity to fix the axial movement of the spring seat. The design and use of this retaining ring ensures that the mechanical components will not experience unexpected axial displacement during operation, thereby ensuring the stability and safety of the mechanical system.

[0019] Preferably, the outer surface of the joint body is coated with a paint layer.

[0020] By adopting the above technical solution, the paint layer can, on the one hand, increase the aesthetics of the exterior of the joint body, and on the other hand, increase the corrosion resistance of the joint body and extend its service life.

[0021] Preferably, a plurality of reinforcement portions are provided on the outer surface of the joint body, and the reinforcement portions are spaced apart along the central axis of the joint body.

[0022] By adopting the above technical solution, the reinforcement portion can increase the thickness of the joint body, thereby increasing the strength of the joint body and reducing the possibility of the joint body being broken.

[0023] Preferably, the joint body is made of stainless steel or aluminum alloy.

[0024] By adopting the above technical solution, the stainless steel or aluminum alloy material has good strength and corrosion resistance, which can extend the service life of the joint body.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] (1) By providing external and internal threads at both ends of the connector body, the pipes to be connected can be screwed onto the first connection end and the second connection end, respectively, and the connection of the pipes is achieved by the action of the screw connection force, thereby reducing the possibility of the connector being separated from the pipe during the process of conveying fluid;

[0027] (2) By setting a sealing gasket, the sealing gasket can further improve the sealing performance between the valve core and the valve sleeve;

[0028] (3) By setting a retaining ring in the hole, the axial movement of the spring seat can be restricted. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural diagram of the quick connector in the embodiment of the present application.

[0030] Figure numerals: 1. connector body; 2. valve core; 3. valve sleeve; 4. fluid cavity; 5. first connecting end; 6. second connecting end; 7. sealing gasket; 8. valve spring; 9. spring seat; 10. reinforcement part; 11. retaining ring for hole. DETAILED DESCRIPTION

[0031] The following will describe the technical solution of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. The present application can be embodied in many different forms and is not limited to the embodiments described here.

[0032] Throughout the present application, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0034] In the description of the embodiments of this application, unless otherwise specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, integration, or mechanical connections. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this application based on specific circumstances.

[0035] Some embodiments of the present application are described in detail below with reference to the accompanying drawings. In the absence of conflict, those skilled in the art may combine and combine the different embodiments or examples and features of the different embodiments or examples shown in the present application.

[0036] The embodiment of the present application discloses a threaded compression quick connector. Figure 1 The quick connector includes a connector body 1, a valve core 2 and a valve sleeve 3. The connector body 1 is cylindrical and is provided with a fluid cavity 4 for fluid transportation, and the fluid cavity 4 is arranged along the central axis of the connector body 1. In this embodiment, the connector body 1 is made of stainless steel or aluminum alloy. Stainless steel or aluminum alloy materials have good strength and corrosion resistance, which can extend the service life of the connector body 1. Among them, the outer surface of the connector body 1 is also coated with a paint layer, and the paint layer can be but is not limited to a metal layer, a non-metallic layer and a chemical layer. On the one hand, the paint layer can increase the aesthetics of the appearance of the connector body 1, and on the other hand, it can increase the corrosion resistance of the connector body 1 and extend the service life.

[0037] The connector body 1 has a first connection end 5 and a second connection end 6 at each end. The outer surface of the first connection end 5 is provided with external threads, and the inner wall of the second connection end 6 is provided with internal threads. Both ends of the connector body 1 are threadedly connected to an external fluid pipeline. A valve sleeve 3 is installed within the fluid cavity 4, and a valve core 2 is installed within the valve sleeve 3 and is used to control the fluid flow. The movement of the valve core 2 changes the flow path of the fluid, thereby enabling the quick connector to be opened, closed, or adjusted. The valve sleeve 3 and valve core 2 work together to ensure smooth movement of the valve core 2 while providing the necessary sealing performance.

[0038] During installation, the pipes to be connected can be screwed onto the first connection end 5 and the second connection end 6 respectively, and the connection of the pipelines is achieved by relying on the action of the screw connection force, so that the joint is not easily separated from the pipeline during the process of conveying fluid, thereby improving stability and safety.

[0039] Specifically, a sealing gasket 7 is also installed between the valve core 2 and the valve sleeve 3, and the sealing gasket 7 is made of rubber material. The sealing gasket 7 can further improve the sealing performance between the valve core 2 and the valve sleeve 3 and reduce the possibility of fluid leakage. The sealing gasket 7 made of rubber material has good toughness and corrosion resistance, which can extend the service life of the sealing gasket 7. A valve spring 8 and a spring seat 9 are also installed in the fluid cavity 4. The spring seat 9 is close to the valve sleeve 3. The valve spring 8 is installed on the spring seat 9 and is connected to the valve core 2. The valve spring 8 is a metal spring, usually made of spring steel. The cooperation between the valve core 2 and the valve spring 8 is that the pre-tightening force of the valve spring 8 acts on the valve core 2 to keep it in a closed state.

[0040] When fluid enters fluid cavity 4, fluid pressure acts on one end of valve core 2, overcoming the preload of valve spring 8 and pushing valve core 2 toward the other end, thereby connecting the pipeline. When the pipeline needs to be disconnected, the fluid pressure no longer acts on valve core 2, and the preload of valve spring 8 returns valve core 2 to the closed position, cutting off the fluid flow path.

[0041] In addition, a plurality of reinforcing portions 10 are fixedly connected to the outer surface of the joint body 1, and the reinforcing portions 10 are spaced apart along the central axis of the joint body 1. The reinforcing portions 10 can increase the thickness of the joint body 1, thereby increasing the strength of the joint body 1 and reducing the possibility of fracture of the joint body 1. A hole retaining ring 11 is also installed in the fluid cavity 4. The hole retaining ring 11 is close to the spring seat 9 and is used to limit the axial movement of the spring seat 9. The design and use of this retaining ring ensures that the mechanical components will not undergo accidental axial displacement during operation, thereby ensuring the stability and safety of the mechanical system.

[0042] The threaded compression quick connector of this embodiment is implemented as follows: During installation, the pipes to be connected can be threaded onto the first connection end 5 and the second connection end 6, respectively. The connection is achieved by the force of the threaded connection, making it less likely for the connector to separate from the pipe during fluid delivery, thereby improving stability and safety. During operation, the operator can control the movement of the valve core 2 to change the flow path of the fluid, thereby realizing the opening, closing, or adjustment functions of the quick connector.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A threaded compression quick connector, characterized in that: The invention comprises a joint body (1), a valve core (2) and a valve sleeve (3); the joint body (1) is provided with a fluid cavity (4) for fluid transportation; the two ends of the joint body (1) are respectively a first connecting end (5) and a second connecting end (6); the outer surface of the first connecting end (5) is provided with an external thread, and the inner wall of the second connecting end (6) is provided with an internal thread; the joint body (1) is threadedly connected to an external fluid pipeline; the valve sleeve (3) is provided in the fluid cavity (4), and the valve core (2) is provided in the valve sleeve (3) and is used to control the flow rate of the fluid.

2. A threaded compression quick connector according to claim 1, characterized in that: It also includes a sealing gasket (7), which is arranged between the valve core (2) and the valve sleeve (3).

3. A threaded compression quick connector according to claim 2, characterized in that: The sealing gasket (7) is made of rubber material.

4. The threaded compression quick connector according to claim 1, characterized in that: It also includes a valve spring (8) and a spring seat (9), wherein the spring seat (9) is arranged in the fluid cavity (4) and close to the valve sleeve (3), and the valve spring (8) is arranged on the spring seat (9) and connected to the valve core (2).

5. A threaded compression quick connector according to claim 4, characterized in that: It also includes a hole retaining ring (11), which is arranged in the fluid cavity (4) and close to the spring seat (9), and is used to limit the axial movement of the spring seat (9).

6. The threaded compression quick connector according to claim 1, characterized in that: The outer surface of the joint body (1) is coated with a paint layer.

7. The threaded compression quick connector according to claim 1, characterized in that: The outer surface of the joint body (1) is provided with a plurality of reinforcement portions (10), and the reinforcement portions (10) are distributed at intervals along the central axis direction of the joint body (1).

8. The threaded compression quick connector according to claim 1, characterized in that: The joint body (1) is made of stainless steel or aluminum alloy.

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