One-way valve fitting and fluid control line

Abstract

This utility model provides a one-way valve connector and a fluid control pipeline, relating to the technical field of fluid control components. The one-way valve connector includes an SAE female connector body, an SAE unlock button, a sealing clamping element, a sealing element, a sealing ball, and a sealing seat. One of the SAE female connector body and the sealing seat is provided with a limit support, and the other is provided with a sealing ball seat. A flow passage is formed in the limit support. The sealing ball is located between the sealing ball seat and the limit support. A drive spring is sleeved on the limit support to give the sealing ball a tendency to move towards the sealing ball seat. The sealing seat, sealing element, and sealing clamping element are sequentially inserted into the SAE female connector body, and the sealing clamping element is engaged with the inner wall of the SAE female connector body. The SAE unlock button is detachably mounted on the SAE female connector body. The fluid control pipeline includes the one-way valve connector. This achieves the technical effect of improving the reliability of the one-way valve.

Description

Technical Field

[0001] This utility model relates to the field of fluid control components, and more specifically, to a one-way valve connector and a fluid control pipeline. Background Technology

[0002] In media transfer systems, check valves are crucial components that ensure unidirectional flow of the media and prevent backflow. Used in media transfer systems for fuel, coolant, and other media, check valves designed to meet specific pressure, temperature, and performance standards can protect critical components such as pumps from temperature, pressure, and media shocks in the circuit.

[0003] Traditional check valve fittings have shortcomings in structural design, material selection, and performance stability, making it difficult to meet high performance requirements such as SAE J2044. In particular, there is room for improvement in terms of pressure and temperature adaptability and leakage control. Utility Model Content

[0004] The purpose of this invention is to provide a one-way valve connector and fluid control pipeline to alleviate the technical problem of low reliability of one-way valves in the prior art.

[0005] In a first aspect, this utility model provides a one-way valve connector, including an SAE female connector body, an SAE unlocking button, a sealing clamping element, a sealing element, a sealing ball, and a sealing seat;

[0006] One of the SAE female connector body and the sealing seat is provided with a limit support seat, and the other is provided with a sealing ball seat. The limit support seat has an overflow channel.

[0007] The sealing ball is located between the sealing ball seat and the limiting support seat, and a driving spring is sleeved on the limiting support seat so that the sealing ball has a tendency to move toward the sealing ball seat;

[0008] The sealing seat, the sealing element, and the sealing clamping element are sequentially inserted into the SAE female connector body, and the sealing clamping element is engaged with the inner wall of the SAE female connector body.

[0009] The SAE unlock button is detachably mounted on the SAE female connector body.

[0010] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the side of the sealing ball seat that abuts against the sealing ball is provided with an arc-shaped recess for increasing the contact area with the sealing ball.

[0011] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the inner wall of the SAE female connector body is provided with a limiting ring platform for limiting the movement range of the sealing seat, and one end of the sealing seat facing the sealing ball abuts against the limiting ring platform.

[0012] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein the outer wall of the sealing seat is provided with multiple sealing ribs.

[0013] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the inner wall of the SAE female connector body is provided with a back-locking groove, and the sealing clamping member is provided with a back-locking elastic clip, which can be disposed in the back-locking groove.

[0014] In conjunction with the first aspect, this utility model provides a possible implementation of the first aspect, wherein a plurality of sealing elements are provided between the sealing clamping element and the sealing seat, and a spacer ring is provided between two adjacent sealing elements.

[0015] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein a guide slope is provided on the side of the sealing ball seat away from the sealing ball.

[0016] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the compression height of the aforementioned driving spring is less than the height of the limiting support seat.

[0017] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the SAE female connector body is provided with a snap-fit ​​groove, and the SAE unlock button is snapped into the snap-fit ​​groove.

[0018] Secondly, this utility model embodiment provides a fluid control pipeline, including the one-way valve connector.

[0019] Beneficial effects:

[0020] This utility model embodiment provides a one-way valve connector, including an SAE female connector body, an SAE unlock button, a sealing clamping element, a sealing element, a sealing ball, and a sealing seat; one of the SAE female connector body and the sealing seat is provided with a limit support seat, and the other is provided with a sealing ball seat, with a flow passage formed in the limit support seat; the sealing ball is located between the sealing ball seat and the limit support seat, and a drive spring is sleeved on the limit support seat to make the sealing ball tend to move towards the sealing ball seat; the sealing seat, the sealing element, and the sealing clamping element are sequentially inserted into the SAE female connector body, and the sealing clamping element is engaged with the inner wall of the SAE female connector body; the SAE unlock button is detachably installed on the SAE female connector body.

[0021] Specifically, during assembly, the drive spring and sealing ball are placed between the sealing ball seat and the limit support seat. Then, the sealing ball, sealing seat, sealing element, and sealing clamping element are sequentially placed into the SAE female connector body. The sealing ball is located between the sealing ball seat and the limit support seat. One-way flow can be achieved through the drive spring. The sealing clamping element can press and fix the sealing element and sealing seat to the SAE female connector body. When the SAE male connector is inserted, the sealing element and sealing seat can achieve the sealing performance between the SAE male connector and the SAE female connector body. This configuration improves the performance of the one-way valve.

[0022] This utility model embodiment provides a fluid control pipeline, including a one-way valve connector. The fluid control pipeline has the advantages described above compared to the prior art, which will not be elaborated further here. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 A schematic diagram of a first embodiment of the one-way valve connector provided in this utility model;

[0025] Figure 2 A cross-sectional view of the first embodiment of the one-way valve connector provided in this utility model when it is not conducting;

[0026] Figure 3 A cross-sectional view of the one-way valve connector provided in the first embodiment of the present utility model when it is in operation;

[0027] Figure 4 An internal cross-sectional view of the first embodiment of the one-way valve connector provided in this utility model when it is not connected;

[0028] Figure 5 A cross-sectional view of the SAE female connector body in the first embodiment of the one-way valve connector provided in this utility model;

[0029] Figure 6 A schematic diagram of the sealing seat in the first embodiment of the one-way valve connector provided in this utility model;

[0030] Figure 7 A partial cross-sectional view of a second embodiment of the one-way valve connector provided in this utility model;

[0031] Figure 8 A schematic diagram of the sealing seat in a second embodiment of the one-way valve connector provided in this utility model;

[0032] Figure 9 A schematic diagram of the SAE unlocking button in the one-way valve connector provided in this embodiment of the utility model;

[0033] Figure 10 A schematic diagram of the sealing and clamping component in the one-way valve connector provided in this embodiment of the utility model.

[0034] icon:

[0035] 100-SAE female connector body; 101-Snap-fit ​​groove; 110-Limiting ring platform; 120-Anti-reverse snap groove; 130-First sealing ring groove; 140-Second sealing ring groove; 150-Guide rib;

[0036] 200-SAE unlock button;

[0037] 300 - Sealing and clamping component; 310 - Anti-reverse elastic clip;

[0038] 400 - Seal; 410 - Spacer ring;

[0039] 500-Sealed Ball;

[0040] 600 - Sealing seat; 610 - Sealing rib;

[0041] 710 - Limiting support seat; 711 - Flow passage; 720 - Sealing ball seat; 721 - Arc-shaped recess; 722 - Flow guide slope; 730 - Drive spring;

[0042] 800-SAE male connector. Detailed Implementation

[0043] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. 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.

[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0048] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, this embodiment provides a one-way valve connector, including an SAE female connector body 100, an SAE unlock button 200, a sealing clamping member 300, a sealing member 400, a sealing ball 500, and a sealing seat 600; one of the SAE female connector body 100 and the sealing seat 600 is provided with a limiting support 710, and the other is provided with a sealing ball seat 720, with a flow passage 711 formed on the limiting support 710; the sealing ball 500 is located between the sealing ball seat 720 and the limiting support 710, and a drive spring 730 is sleeved on the limiting support 710 to make the sealing ball 500 tend to move toward the sealing ball seat 720; the sealing seat 600, the sealing member 400, and the sealing clamping member 300 are sequentially inserted into the SAE female connector body 100, and the sealing clamping member 300 is engaged with the inner wall of the SAE female connector body 100; the SAE unlock button 200 is detachably mounted on the SAE female connector body 100.

[0049] Specifically, during assembly, the drive spring 730 and the sealing ball 500 are positioned between the sealing ball seat 720 and the limiting support seat 710. Then, the sealing ball 500, sealing seat 600, sealing element 400, and sealing clamping element 300 are sequentially placed into the SAE female connector body 100. The sealing ball 500 is located between the sealing ball seat 720 and the limiting support seat 710. One-way flow can be achieved through the drive spring 730. The sealing clamping element 300 can press and fix the sealing element 400 and the sealing seat 600 to the SAE female connector body 100. When the SAE male connector 800 is inserted, the sealing element 400 and the sealing seat 600 can achieve a seal between the SAE male connector 800 and the SAE female connector body 100. This arrangement improves the performance of the one-way valve.

[0050] The sealing ball seat 720 has a flow hole, which is interference-fitted with the sealing ball 500.

[0051] See Figures 1-10 As shown, the one-way valve connector provided in this embodiment conforms to the SAE connector standard (a standard connector developed by the Society of Automotive Engineers, SAE). The SAE female connector body 100 has a snap-fit ​​groove 101, and the SAE unlock button 200 snaps into the snap-fit ​​groove 101. The SAE unlock button 200 is snapped onto the SAE female connector body 100, and the SAE unlock button 200 is used to restrict the SAE male connector 800, preventing the SAE male connector 800 from falling off.

[0052] The SAE female connector body 100 can be configured as a straight line, cross, L-shaped, or T-shaped connector, etc., and those skilled in the art can configure it according to actual needs.

[0053] It should be noted that the one-way valve connector provided in this embodiment has fewer components and is lightweight. It is suitable for any medium flow direction and can be used for various common media, such as coolant, water, gas, fuel oil or gas. It has low flow resistance, low opening force (20mba, for continuous medium flow), high reverse sealing performance, low internal leakage (20mm³ / s), a wide applicable pressure range (-1bar-40bar), and a wide applicable temperature range (-40℃-180℃).

[0054] See Figures 1-10 As shown, in an optional embodiment, the side of the sealing ball seat 720 that abuts against the sealing ball 500 has an arc-shaped recess 721 for increasing the contact area with the sealing ball 500. The outer wall of the sealing seat 600 is provided with multiple sealing ribs 610.

[0055] Specifically, multiple sealing ribs 610 are provided on the outer wall of the sealing seat 600. The sealing ribs 610 are interference-fitted with the SAE female connector body 100 to increase the friction between the sealing seat 600 and the inner wall of the SAE female connector body 100, thereby sealing the inner wall of the sealing seat 600 and preventing media leakage. Furthermore, an arc-shaped recess 721 is provided on the sealing ball seat 720. The arc-shaped recess 721 increases the contact area between the sealing ball seat 720 and the sealing ball 500, thereby improving the sealing performance.

[0056] The arc-shaped recess 721 allows for adaptation to changes in the state of the sealing ball 500 during operation, such as expansion or contraction of the sealing ball 500, thereby improving sealing performance. Furthermore, the ratio of the diameter of the sealing ball 500 to the depth of the arc-shaped recess 721 is no greater than 5, thus enhancing the lateral stability of the sealing ball 500.

[0057] The sealing rib 610 has a right-angled triangle cross section, with the inclined surface of the right-angled triangle facing the sealing ball 500. This arrangement not only increases the friction between the sealing seat 600 and the inner wall of the SAE female connector body 100, but also increases the reverse blocking force of the sealing seat 600 against the medium.

[0058] In addition, the SAE female connector body 100 has a first sealing ring groove 130 for installing the seal 400 and a second sealing ring groove 140 for installing the sealing seat 600. The inner diameter of the second sealing ring groove 140 is smaller than the inner diameter of the first sealing ring groove 130, and the outer diameter of the sealing rib 610 is not greater than the inner diameter of the first sealing ring groove 130, so as to avoid damaging the surface of the first sealing ring groove 130 when the sealing rib 610 is installed.

[0059] In addition, a flow guide slope 722 is provided on the side of the sealing ball seat 720 away from the sealing ball 500. The flow guide slope 722 reduces the flow resistance when the medium flows through the sealing seat 600.

[0060] It should be noted that the limiting support 710 can be disposed on the SAE female connector body 100, and the sealing ball seat 720 can be disposed on the sealing seat 600, or the limiting support 710 can be disposed on the sealing seat 600, and the sealing ball seat 720 can be disposed on the upper SAE female connector body 100. Preferably, the limiting support 710 can be disposed on the SAE female connector body 100, and the sealing ball seat 720 can be disposed on the sealing seat 600, so that the flow direction from the SAE male connector 800 to the SAE female connector body 100 is conductive.

[0061] The SAE female connector body 100 has a limiting ring platform 110 on its inner wall to restrict the movement range of the sealing seat 600. The end of the sealing seat 600 facing the sealing ball 500 abuts against the limiting ring platform 110. Through the cooperation of the limiting ring platform 110 and the sealing clamping member 300, the sealing seat 600 can be limited and fixed, preventing the sealing seat 600 from moving along the inner wall of the SAE female connector body 100.

[0062] See Figures 1-10 As shown, in the optional embodiment, the inner wall of the SAE female connector body 100 is provided with a backstop groove 120, and the sealing clamping member 300 is provided with a backstop elastic clip 310, which can be disposed in the backstop groove 120.

[0063] Specifically, a backlash groove 120 is provided on the inner wall of the SAE female connector body 100, and a backlash elastic clip 310 is provided on the sealing clamping member 300. When the sealing clamping member 300 is inserted into the SAE female connector body 100, the backlash elastic clip 310 on the sealing clamping member 300 will be locked into the backlash groove 120 on the inner wall of the SAE female connector body 100, so that the sealing clamping member 300 cannot be backlashed, and the sealing clamping member 300 can compress the sealing member 400 and the sealing seat 600.

[0064] Among them, multiple sealing elements 400 are provided between the sealing clamping element 300 and the sealing seat 600, and a spacer ring 410 is provided between two adjacent sealing elements 400.

[0065] See Figures 1-10 As shown, in the optional embodiment, the compression height of the drive spring 730 is less than the height of the limiting support 710.

[0066] Specifically, the compression height of the drive spring 730 is less than the height of the limit support 710. With this setting, when the sealing ball 500 is pressed onto the limit support 710 by the medium, the drive spring 730 is not in a fully compressed state, thus improving the service life of the drive spring 730.

[0067] In addition, when the sealing ball seat 720 is installed on the SAE female connector body 100, guide ribs 150 are provided inside the SAE female connector body 100. The guide ribs 150 can not only improve the structural strength of the sealing ball seat 720 on the SAE female connector body 100, but also guide the drive spring 730 by multiple guide ribs 150, thus preventing the drive spring 730 from deviating.

[0068] This embodiment provides a fluid control pipeline, including a one-way valve connector.

[0069] Specifically, the fluid control pipeline provided in this embodiment has the advantages of the aforementioned one-way valve connector compared to the prior art, which will not be elaborated here.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A one-way valve connector, characterized in that, include: SAE female connector body (100), SAE unlock button (200), sealing clamp (300), seal (400), sealing ball (500) and sealing seat (600). One of the SAE female connector body (100) and the sealing seat (600) is provided with a limiting support seat (710), and the other is provided with a sealing ball seat (720). The limiting support seat (710) has an overflow channel (711). The sealing ball (500) is located between the sealing ball seat (720) and the limiting support seat (710). A driving spring (730) is sleeved on the limiting support seat (710) so that the sealing ball (500) has a tendency to move toward the sealing ball seat (720). The sealing seat (600), the sealing element (400), and the sealing clamping element (300) are sequentially inserted into the SAE female connector body (100), and the sealing clamping element (300) is engaged with the inner wall of the SAE female connector body (100). The SAE unlock button (200) is detachably mounted on the SAE female connector body (100).

2. The one-way valve connector according to claim 1, characterized in that, The sealing ball seat (720) has an arc-shaped recess (721) on the side that abuts against the sealing ball (500) to increase the contact area with the sealing ball (500).

3. The one-way valve connector according to claim 1, characterized in that, The inner wall of the SAE female connector body (100) is provided with a limiting ring platform (110) for limiting the movement range of the sealing seat (600), and one end of the sealing seat (600) facing the sealing ball (500) abuts against the limiting ring platform (110).

4. The one-way valve connector according to claim 3, characterized in that, The outer wall of the sealing seat (600) is provided with multiple sealing ribs (610).

5. The one-way valve connector according to claim 1, characterized in that, The inner wall of the SAE female connector body (100) is provided with a backstop groove (120), and the sealing clamping member (300) is provided with a backstop elastic clip (310), which can be set in the backstop groove (120).

6. The one-way valve connector according to claim 5, characterized in that, A plurality of sealing elements (400) are provided between the sealing clamping element (300) and the sealing seat (600), and a spacer ring (410) is provided between two adjacent sealing elements (400).

7. The one-way valve connector according to claim 1, characterized in that, A flow guide slope (722) is provided on the side of the sealing ball seat (720) away from the sealing ball (500).

8. The one-way valve connector according to any one of claims 1-7, characterized in that, The compression height of the drive spring (730) is less than the height of the limiting support (710).

9. The one-way valve connector according to any one of claims 1-7, characterized in that, The SAE female connector body (100) has a snap-fit ​​groove (101) and the SAE unlock button (200) is snapped into the snap-fit ​​groove (101).

10. A fluid control pipeline, characterized in that, Includes the one-way valve connector as described in any one of claims 1-9.

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