A male structure of a quick coupling

Abstract

The utility model provides a male head structure of quick coupling, include: valve body and valve core, the cavity inner wall of valve body is provided with snap spring groove, the snap spring groove is inlayed with snap spring, one side of snap spring is provided with locating block, the edge of locating block is provided with a plurality of everted, locating block is supported on snap spring through everted, one side of locating block is provided with return spring, locating block is used for supporting return spring, return spring is set on valve core, valve core moves in return spring telescopic direction in valve body, through setting a plurality of everted on the edge of locating block, can increase the virtual position space in valve body under the premise of not changing other structure of valve body, reduce flow resistance greatly improve fluid permeability, improve work efficiency.

Description

Technical Field

[0001] This utility model mainly relates to the technical field of quick connectors, specifically a male connector structure for a quick connector. Background Technology

[0002] Quick couplings are devices that allow for the rapid connection or disconnection of pipelines without tools. Their core features are convenience, sealing, and automated control. They are required in various industrial production processes, such as hydraulic connections required for construction equipment, forestry equipment, hydraulic tools, petroleum equipment, steel containers, and other pipelines. They can be used for a variety of fluid media, including common complex media such as acids, alkalis, oils, special chemicals, high-temperature steam, and liquids (different sealing ring materials are selected for different media). They are suitable for the rapid connection and disconnection of metal or non-metal soft and hard fluid pipelines under normal or medium pressure (3-10 atmospheres) without fluid loss. However, the positioning block structure inside existing quick couplings has relatively high fluid resistance and low efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a male connector structure for a quick connector to solve the problems mentioned in the background section.

[0004] To solve the above-mentioned technical problems, the technical solution adopted in this application is as follows: a male connector structure for a quick connector is provided, including a valve body and a valve core. A retaining ring groove is provided on the inner wall of the valve body cavity, and a retaining ring is embedded in the retaining ring groove. A positioning block is provided on one side of the retaining ring, and multiple outward flaps are provided on the edge of the positioning block. The positioning block is supported on the retaining ring by the outward flaps. A return spring is provided on one side of the positioning block, and the positioning block is used to support the return spring. The return spring is sleeved on the valve core, and the valve core moves in the valve body along the extension and contraction direction of the return spring. By providing multiple outward flaps on the edge of the positioning block, the virtual space in the valve body can be increased without changing other structures of the valve body, thereby reducing flow resistance and greatly improving fluid permeability.

[0005] Furthermore, the positioning block is provided with multiple inward-folding features to fix the reset spring.

[0006] Furthermore, the multiple outwardly flared sections are evenly distributed around the outer periphery of the positioning block.

[0007] Furthermore, the valve core includes a valve core head and a valve core rod. The outer wall of the valve core head is provided with a positioning groove, and a sealing ring is fitted on the positioning groove to improve the sealing performance.

[0008] Furthermore, the positioning block has a central hole for the movement of the valve core rod.

[0009] Furthermore, the inner wall of the positioning groove is also recessed with a fastening groove to improve the gripping force of the sealing ring and reduce the risk of the sealing ring falling off under the impact of pressurized fluid.

[0010] Furthermore, the outer peripheral surface of the valve core head is configured as an inwardly concave curved surface, which can increase the actual channel area of ​​the fluid.

[0011] Furthermore, the number of inward and outward flips is set to three each. The three curved outward flips can make the positioning block fit smoothly and securely with the valve body, and also reduce fluid resistance. At the same time, it does not change the assembly relationship of the original valve body parts, ensuring the assembly effect. The three curved inward flips can fix the return spring well.

[0012] Unlike related technologies, the male connector structure of this application, by setting an outward flare around the positioning block, can increase the virtual space inside the valve body without changing other structures of the valve body, reduce flow resistance, improve fluid permeability, and improve working efficiency.

[0013] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention when the joint is closed;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model when the connector is open;

[0016] Figure 3 This is a schematic diagram of the positioning block of this utility model;

[0017] Figure 4 This is a schematic diagram of the positioning block of this utility model;

[0018] Figure 5 This is a schematic diagram of the valve core of this utility model.

[0019] In the diagram: 1. Valve body; 2. Valve core; 21. Valve core head; 211. Fastening groove; 212. Sealing ring; 22. Valve core rod; 3. Snap ring; 4. Positioning block; 41. Outward flip; 42. Inward flip; 43. Central hole; 5. Return spring. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] This application provides a male connector structure for a quick connector, such as... Figure 1-4 As shown, the valve body includes a valve body 1 and a valve core 2. The inner wall of the valve body 1 has a retaining ring groove, in which a retaining ring 3 is embedded. A positioning block 4 is located on one side of the retaining ring 3. Multiple outward-facing flanges 41 are evenly distributed around the outer periphery of the positioning block 4, forming a discontinuous outer diameter through the curved support flanges 41, creating a fit with the same outer diameter as the solid body. This ensures a stable and smooth fit between the positioning block 4 and the inner cavity of the valve body 1 in the diametrical direction. The positioning block 4 is supported on the retaining ring 3 by the end faces of the flanges 41, thus forming a stable positioning in the axial direction. The design of the inward-facing flanges 42 and 41 does not change the assembly relationship of the various components within the valve body 1, ensuring a good assembly effect. A return spring 5 is located on one side of the positioning block 4, supporting the return spring 5. The return spring 5 is sleeved on the valve core 2, and the valve core 2 moves within the valve body 1 along the extension and retraction direction of the return spring 5.

[0024] like Figure 1-4 As shown, the positioning block 4 is provided with three inward turning 42s. The three claw positions of the inward turning 42s cover the periphery of the reset spring 5, thereby fixing the reset spring 5.

[0025] like Figure 3-4As shown, there are three outward-turning 41s. The three support outward-turning 41s are disconnected rather than continuous because "three points determine one surface" is sufficient to establish a stable structure. In addition, such a discontinuous design can reduce the stretching mold and stretching process, reduce costs, and maximize the virtual space in the valve body, reduce flow resistance and improve fluid permeability.

[0026] like Figure 1 , 5 As shown, the valve core 2 includes a valve core head 21 and a valve core rod 22. The outer wall of the valve core head 21 is provided with a positioning groove 211, and a sealing ring 212 is fitted on the positioning groove 211. The sealing ring 212 can be replaced according to the usage scenario. The inner wall of the positioning groove 211 is also recessed with two fastening grooves 2111. After setting the fastening grooves 2111, the gripping force of the sealing ring 212 can be improved, which greatly reduces the risk of the sealing ring 212 falling off under the impact of pressure fluid.

[0027] like Figure 3-4 As shown, the positioning block 4 has a central hole 43 for the movement of the valve core rod 22. The positioning block 4 is processed by punching and flanging, which reduces costs and ensures the accuracy and stability of the hole fit compared to the drilling method of lathe or milling machine used in the prior art.

[0028] like Figure 1 , 5 As shown, the outer peripheral surface of the valve core head 21 is set as an inwardly concave curved surface, which reduces flow resistance and improves efficiency.

[0029] To reduce resistance, chamfering is applied to all connections between the valve body and valve core to guide flow.

[0030] Specific operating instructions:

[0031] When the male valve body 1 is inserted into the female valve body, the female valve core will press against the male valve core 2. The male valve core 2 will move into the male valve body 1 under the action of force, the return spring 5 will be compressed, the two ends of the valve body 1 will be connected to each other, the outward 41 of the positioning block 4 will be supported on the snap ring 3, and liquid or gas will flow through the space between the central hole 43 and the outward 41, and the valve body 1 will open.

[0032] Conversely, when the male valve body 1 is disengaged from the female valve body, the return spring 5 inside the male valve body 1 will push the valve core 2 out under the action of the elastic force until the valve core 2 seals the opening of the valve body 1. Under the action of the sealing ring 212, the opening of the valve body 1 is completely sealed, and the liquid at both ends of the valve body 1 cannot flow, and the valve body 1 is closed.

[0033] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A male connector structure for a quick coupling, comprising: The valve body (1) and valve core (2) are characterized in that the inner wall of the cavity of the valve body (1) is provided with a snap ring groove, a snap ring (3) is embedded in the snap ring groove, a positioning block (4) is provided on one side of the snap ring (3), a plurality of outward flaps (41) are provided on the edge of the positioning block (4), the positioning block (4) is supported on the snap ring (3) by the outward flaps (41), a return spring (5) is provided on one side of the positioning block (4), the positioning block (4) is used to support the return spring (5), the return spring (5) is sleeved on the valve core (2), and the valve core (2) moves in the valve body (1) along the extension and retraction direction of the return spring (5).

2. The male connector structure of a quick connector according to claim 1, characterized in that, The positioning block (4) is provided with multiple inward turning (42).

3. The male connector structure of a quick connector according to claim 2, characterized in that, Multiple outwardly folded (41) are evenly distributed on the outer periphery of the positioning block (4).

4. The male connector structure of a quick connector according to claim 1, characterized in that, The valve core (2) includes a valve core head (21) and a valve core rod (22). The outer wall of the valve core head (21) is provided with a positioning groove (211), and a sealing ring (212) is fitted on the positioning groove (211).

5. The male connector structure of a quick connector according to claim 4, characterized in that, The positioning block (4) has a central hole (43) for the movement of the valve core rod (22).

6. The male connector structure of a quick connector according to claim 4, characterized in that, The inner wall of the positioning groove (211) is also recessed with a fastening groove (2111).

7. The male connector structure of a quick connector according to claim 4, characterized in that, The outer peripheral surface of the valve core head (21) is set as an inwardly concave curved surface.

8. The male connector structure of a quick connector according to claim 2, characterized in that, The number of inversion (42) and eversion (41) is set to three each.

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