One-way valve connector and fluid control pipeline

Abstract

The invention provides a one-way valve connector and a fluid control pipeline, and relates to the technical field of fluid control components. The one-way valve connector comprises an SAE female connector body, an SAE unlocking button, a sealing pressing piece, a sealing piece, a sealing ball and a sealing seat. One of the SAE female joint body and the sealing seat is provided with a limiting supporting seat, the other one of the SAE female joint body and the sealing seat is provided with a sealing ball seat, and the limiting supporting seat is provided with an overflowing channel; the sealing ball is located between the sealing ball seat and the limiting supporting seat, and the limiting supporting seat is sleeved with a driving spring so that the sealing ball can tend to move towards the sealing ball seat. The sealing seat, the sealing piece and the sealing pressing piece are sequentially inserted into the SAE female connector body, and the sealing pressing piece is connected with the inner wall of the SAE female connector body in a clamped mode. The SAE unlocking button is detachably installed on the SAE female connector body. The fluid control pipeline comprises a one-way valve connector. The technical effect of improving the reliability of the one-way valve is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid control components, in particular to a one-way valve joint and a fluid control pipeline. Background Art

[0002] In media transmission systems, check valve connectors are critical components for ensuring unidirectional flow and preventing reverse flow. Used in fuel, coolant, and other media transmission systems, these connectors are designed to meet specific pressure, temperature, and performance standards, protecting critical components like pumps from temperature, pressure, and media shock within the circuit.

[0003] Traditional one-way valve joints have deficiencies in structural design, material selection and performance stability, making it difficult to meet high-standard performance requirements such as SAEJ2044. In particular, there is room for improvement in pressure and temperature adaptability range and leakage control. Summary of the Invention

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

[0005] In a first aspect, an embodiment of the present invention provides a one-way valve connector, comprising an SAE female connector body, an SAE unlocking button, a sealing pressing member, a sealing member, a sealing ball, and a sealing seat; A limited support seat is provided on one of the SAE female connector body and the sealing seat, and a sealing ball seat is provided on the other, and an overflow channel is provided on the limited support seat; 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 to make the sealing ball have a tendency to move toward the sealing ball seat; The sealing seat, the sealing member and the sealing pressing member are sequentially inserted into the SAE female connector body, and the sealing pressing member is clamped with the inner wall of the SAE female connector body; The SAE unlocking button is detachably mounted on the SAE female connector body.

[0006] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein a side of the sealing ball seat that abuts the sealing ball is provided with an arc-shaped recess for increasing the contact area with the sealing ball.

[0007] In combination with the first aspect, an embodiment of the present invention provides a possible implementation scheme of the first aspect, wherein the inner wall of the above-mentioned SAE female connector body is provided with a limit ring for limiting the movement range of the sealing seat, and the end of the sealing seat facing the sealing ball abuts against the limit ring.

[0008] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein the outer wall of the sealing seat is provided with a plurality of sealing ribs.

[0009] In combination with the first aspect, an embodiment of the present invention provides a possible implementation method of the first aspect, wherein a back-stop groove is provided on the inner wall of the SAE female connector body, and a back-stop elastic card is provided on the sealing clamping member, and the back-stop elastic card can be set in the back-stop groove.

[0010] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein a plurality of the sealing members are arranged between the sealing pressure member and the sealing seat, and a spacer ring is arranged between two adjacent sealing members.

[0011] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein a guide slope is provided on a side of the sealing ball seat away from the sealing ball.

[0012] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein the compressed height of the driving spring is smaller than the height of the position-limiting support seat.

[0013] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein a snap-in groove is provided on the SAE female connector body, and the SAE unlocking button is snap-into the snap-in groove.

[0014] In a second aspect, an embodiment of the present invention provides a fluid control pipeline, including the one-way valve connector.

[0015] Beneficial effects: An embodiment of the present invention provides a one-way valve connector, including an SAE female connector body, an SAE unlocking button, a sealing compression member, a seal, a sealing ball and a sealing seat; a limited support seat is provided on one of the SAE female connector body and the sealing seat, and a sealing ball seat is provided on the other, and a flow channel is provided on the limited support seat; the sealing ball is located between the sealing ball seat and the limited support seat, and a driving spring is sleeved on the limited support seat so that the sealing ball has a tendency to move toward the sealing ball seat; the sealing seat, the seal and the sealing compression member are sequentially inserted into the SAE female connector body, and the sealing compression member is clamped with the inner wall of the SAE female connector body; the SAE unlocking button is detachably mounted on the SAE female connector body.

[0016] Specifically, during assembly, the driving spring and the sealing ball are arranged between the sealing ball seat and the limit support seat, and then the sealing ball, the sealing seat, the seal and the sealing pressing member are placed in the SAE female connector body in sequence. The sealing ball is located between the sealing ball seat and the limit support seat. One-way conduction can be achieved through the driving spring, and the sealing pressing member can press the seal and the sealing seat to fix them on the SAE female connector body. When the SAE male connector is inserted, the sealing of the SAE male connector and the SAE female connector body can be achieved through the seal and the sealing seat. Through such an arrangement, the performance of the one-way valve is improved.

[0017] The embodiment of the present invention provides a fluid control pipeline including a one-way valve connector. The fluid control pipeline has the above advantages compared with the prior art, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic diagram of a first embodiment of a one-way valve connector provided in an embodiment of the present invention; Figure 2 A cross-sectional view of a first embodiment of a one-way valve connector provided by an embodiment of the present invention when not in conduction; Figure 3 A cross-sectional view of a first embodiment of a one-way valve connector provided by an embodiment of the present invention when in conduction; Figure 4 An internal cross-sectional view of a first embodiment of a one-way valve connector provided by an embodiment of the present invention when not in conduction; Figure 5 A cross-sectional view of an SAE female connector body in a first embodiment of a one-way valve connector provided by an embodiment of the present invention; Figure 6 A schematic diagram of a middle sealing seat of a first embodiment of a one-way valve connector provided in an embodiment of the present invention; Figure 7 A partial cross-sectional view of a second embodiment of a one-way valve connector provided in an embodiment of the present invention; Figure 8 A schematic diagram of a sealing seat in a second embodiment of a one-way valve connector provided in an embodiment of the present invention; Figure 9 A schematic diagram of an SAE unlocking button in a one-way valve connector provided in an embodiment of the present invention; Figure 10A schematic diagram of a sealing and pressing member in a one-way valve connector provided in an embodiment of the present invention.

[0020] icon: 100-SAE female connector body; 101-clamping groove; 110-limiting ring platform; 120-retraction retaining groove; 130-first sealing ring groove; 140-second sealing ring groove; 150-guide rib; 200-SAE unlock button; 300-sealing and pressing part; 310-retraction elastic card; 400-seal; 410-spacer ring; 500-sealing ball; 600-sealing seat; 610-sealing rib; 710-limiting support seat; 711-flow channel; 720-sealing ball seat; 721-arc-shaped depression; 722-flow guide slope; 730-driving spring; 800-SAE male connector. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0023] 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 the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0024] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0025] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0026] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10 As shown, this embodiment provides a one-way valve connector, including an SAE female connector body 100, an SAE unlocking button 200, a sealing pressing member 300, a sealing member 400, a sealing ball 500 and a sealing seat 600; a limited support seat 710 is provided on one of the SAE female connector body 100 and the sealing seat 600, and a sealing ball seat 720 is provided on the other, and a flow channel 711 is provided on the limited support seat 710; the sealing ball 500 is located between the sealing ball seat 720 and the limited support seat 710, and a driving spring 730 is sleeved on the limited support seat 710 to make the sealing ball 500 have a tendency to move toward the sealing ball seat 720; the sealing seat 600, the sealing member 400 and the sealing pressing member 300 are sequentially inserted into the SAE female connector body 100, and the sealing pressing member 300 is clamped with the inner wall of the SAE female connector body 100; the SAE unlocking button 200 is detachably mounted on the SAE female connector body 100.

[0027] Specifically, during assembly, the driving spring 730 and the sealing ball 500 are arranged between the sealing ball seat 720 and the limiting support seat 710, and then the sealing ball 500, the sealing seat 600, the sealing member 400 and the sealing pressing member 300 are sequentially placed into the SAE female connector body 100, and the sealing ball 500 is located between the sealing ball seat 720 and the limiting support seat 710. One-way conduction can be achieved through the driving spring 730, and the sealing pressing member 300 can press and fix the sealing member 400 and the sealing seat 600 on the SAE female connector body 100. When the SAE male connector 800 is inserted, the sealing performance of the SAE male connector 800 and the SAE female connector body 100 can be achieved through the sealing member 400 and the sealing seat 600. Through such an arrangement, the performance of the one-way valve is improved.

[0028] The sealing ball seat 720 is provided with a flow hole, and the flow hole and the sealing ball 500 are interference fit.

[0029] See also Figures 1-10 As shown, the one-way valve connector provided in this embodiment complies with the SAE connector standard (a standard connector developed by the Society of Automotive Engineers (SAE) in the United States). The SAE female connector body 100 defines a snap-fit ​​groove 101, into which an SAE unlocking button 200 is snapped. The SAE unlocking button 200 is snapped onto the SAE female connector body 100 and serves to restrain the SAE male connector 800, preventing it from falling off.

[0030] The SAE female connector body 100 can be configured to be straight, cross, L or T-shaped, etc., and those skilled in the art can configure it according to actual needs.

[0031] It should be pointed out that the one-way valve connector provided in this embodiment has few components and is light in weight. It is suitable for any medium flow direction and can be used for various common media, such as coolant, water, gas, fuel oil or fuel gas. It has low flow resistance and low opening force (20mba, continuous medium flow), high reverse sealing, low internal leakage (20mm³ / s), a wide applicable pressure range (-1bar-40bar), and a wide applicable temperature range (-40℃-180℃).

[0032] See also Figures 1-10 As shown, in an optional solution of this embodiment, a side of the sealing ball seat 720 that contacts the sealing ball 500 is provided with 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.

[0033] Specifically, a plurality of sealing ribs 610 are provided on the outer wall of the sealing seat 600. The sealing ribs 610 are interference fit with the SAE female connector body 100, thereby increasing the friction between the sealing seat 600 and the inner wall of the SAE female connector body 100, so that the sealing seat 600 and the inner wall of the SAE female connector body 100 are sealed to prevent medium leakage, and an arc-shaped recess 721 is provided on the sealing ball seat 720. Through the setting of the arc-shaped recess 721, the contact area between the sealing ball seat 720 and the sealing ball 500 can be increased, thereby improving the sealing performance.

[0034] The provision of the arcuate recess 721 can adapt to changes in the operating state of the sealing ball 500, 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 arcuate recess 721 is no greater than 5, thereby improving the lateral stability of the sealing ball 500.

[0035] Among them, the cross-section of the sealing rib 610 is a right triangle, and the slope of the right triangle faces the sealing ball 500. Through such a setting, not only the friction between the sealing seat 600 and the inner wall of the SAE female connector body 100 can be improved, but also the reverse blocking force of the sealing seat 600 to the medium can be improved.

[0036] In addition, a first sealing ring groove 130 for installing the seal 400 and a second sealing ring groove 140 for installing the sealing seat 600 are provided in the SAE female connector body 100. 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 larger 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.

[0037] In addition, a flow guiding slope 722 is provided on the side of the sealing ball seat 720 away from the sealing ball 500 . The provision of the flow guiding slope 722 can reduce the flow resistance of the medium when it flows through the sealing seat 600 .

[0038] It should be noted that the position-limiting support seat 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 position-limiting support seat 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 position-limiting support seat 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.

[0039] The inner wall of the SAE female connector body 100 is provided with a retaining ring 110 to limit the movement of the sealing seat 600. The end of the sealing seat 600 facing the sealing ball 500 abuts against the retaining ring 110. The retaining ring 110 and the sealing and pressing member 300 cooperate to secure the sealing seat 600 in place, preventing it from moving along the inner wall of the SAE female connector body 100.

[0040] See also Figures 1-10 As shown, in an optional solution of this embodiment, a backstop groove 120 is opened on the inner wall of the SAE female connector body 100, and a backstop elastic card 310 is provided on the sealing and pressing member 300. The backstop elastic card 310 can be set in the backstop groove 120.

[0041] Specifically, a back-stop groove 120 is opened on the inner wall of the SAE female connector body 100, and a back-stop elastic card 310 is provided on the sealing and pressing member 300. When the sealing and pressing member 300 is inserted into the interior of the SAE female connector body 100, the back-stop elastic card 310 on the sealing and pressing member 300 will be stuck in the back-stop groove 120 on the inner wall of the SAE female connector body 100, thereby preventing the sealing and pressing member 300 from retreating, and the sealing and pressing member 300 can compress the sealing member 400 and the sealing seat 600.

[0042] A plurality of sealing members 400 are provided between the sealing pressing member 300 and the sealing seat 600 , and a spacer ring 410 is provided between two adjacent sealing members 400 .

[0043] See also Figures 1-10 As shown, in an optional solution of this embodiment, the compressed height of the driving spring 730 is smaller than the height of the limiting support seat 710.

[0044] Specifically, the compressed height of the driving spring 730 is smaller than the height of the limiting support seat 710. Through such a setting, when the sealing ball 500 is pressed on the limiting support seat 710 by the impact of the medium, the driving spring 730 is not in a completely compressed state, thereby improving the service life of the driving spring 730.

[0045] In addition, when the sealing ball seat 720 is set on the SAE female connector body 100, a guide rib 150 is set inside the SAE female connector body 100. The guide rib 150 can not only improve the structural strength of the sealing ball seat 720 on the SAE female connector body 100, but also multiple guide ribs 150 can guide the driving spring 730 to prevent the driving spring 730 from deviating.

[0046] This embodiment provides a fluid control pipeline, including a one-way valve connector.

[0047] Specifically, the fluid control pipeline provided in this embodiment has the advantages of the above-mentioned one-way valve joint compared with the prior art, which will not be described in detail here.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A one-way valve connector, characterized in that: include: SAE female connector body (100), SAE unlocking button (200), sealing pressing member (300), sealing member (400), sealing ball (500) and sealing seat (600); A limited support seat (710) is provided on one of the SAE female connector body (100) and the sealing seat (600), and a sealing ball seat (720) is provided on the other, and an overflow channel (711) is provided on the limited support seat (710); The sealing ball (500) is located between the sealing ball seat (720) and the position-limiting support seat (710), and a driving spring (730) is sleeved on the position-limiting support seat (710) to enable the sealing ball (500) to have a tendency to move toward the sealing ball seat (720); The sealing seat (600), the sealing member (400) and the sealing pressing member (300) are sequentially inserted into the SAE female connector body (100), and the sealing pressing member (300) is snap-fitted to the inner wall of the SAE female connector body (100); The SAE unlocking 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: A side of the sealing ball seat (720) that contacts the sealing ball (500) is provided with an arc-shaped recess (721) for increasing 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 a plurality of 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 stop-retraction groove (120), and the sealing and pressing member (300) is provided with a stop-retraction elastic clip (310), and the stop-retraction elastic clip (310) can be arranged in the stop-retraction groove (120).

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

7. The one-way valve connector according to claim 1, characterized in that: A flow guide slope (722) is provided on a 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 to 7, characterized in that: The compressed height of the driving spring (730) is smaller than the height of the position-limiting support seat (710).

9. The one-way valve connector according to any one of claims 1 to 7, characterized in that: A snap-fit ​​groove (101) is provided on the SAE female connector body (100), and the SAE unlocking button (200) is snap-fitted into the snap-fit ​​groove (101).

10. A fluid control pipeline, characterized in that: The invention comprises the one-way valve connector according to any one of claims 1 to 9.

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