Fluid connector with low-flow-resistance valve element

Abstract

The utility model discloses a fluid connector with a low-flow-resistance valve element in the technical field of fluid connectors. The fluid connector comprises a movable valve element and a fixed valve element. A first flow guide structure is arranged at the axis of the movable valve element, and a first through-flow window is formed in the side wall of the movable valve element; the included angle formed by the plane where the first through-flow window is located and the plane where the end face of the movable valve element is located and pointing to the axis of the movable valve element is an acute angle. One end face of the fixed valve element and the end face of the movable valve element are positioned through a guide structure, and a second flow guide structure is arranged on the end face. A second through-flow window is formed in the other end face of the fixed valve element, and a third flow guide structure is arranged at the second through-flow window; according to the utility model, the movable valve core and the groove and bulge structures on the end surfaces of the fixed valve core are used for positioning; and the product leakage problems that at the moment that the fixed valve element end is inserted / disconnected with high pressure, the movable valve element rotates and retreats due to liquid pressure impact, the leakage amount exceeds the specification, and the movable valve element rebounds, deflects and is stuck are solved.

Description

Technical Field

[0001] This utility model relates to a fluid connector with a low flow resistance valve core, belonging to the field of fluid connector technology. Background Technology

[0002] CN202320792140.1 describes a fluid connector with a low-flow-resistance valve core for use in fluid connectors. The valve core is typically designed within the plug or socket of the fluid connector. A spring is installed at the tail end of the valve core, which reciprocates along its axis under the action of the spring, cooperating with a seal on the housing to achieve a seal. The valve core has a large flow orifice on its side, which, together with a flow-guiding slope, forms a large arc surface that smoothly transitions to the fluid flow direction, reducing the flow resistance within the connector. Simultaneously, its unique tapered flow-guiding structure effectively reduces eddy current interference, increasing the fluid throughput within the module to be cooled under the same cooling fluid source pressure, thereby achieving a better cooling effect.

[0003] Although the valve core has the above advantages, the following problems remain unresolved:

[0004] 1. When the valve core end face plane structure is initially inserted, the excessive misalignment angle during insertion may cause the valve to fail to connect or become stuck.

[0005] 2. When the valve core end face is in operation, one side of the valve core plane is under high pressure. At the moment of insertion / disconnection, the liquid pressure impact causes the valve core to rotate and retract, resulting in leakage exceeding specifications, as well as leakage problems such as valve core rebound deviation and jamming.

[0006] To address this, a fluid connector with a low flow resistance valve core is proposed. Utility Model Content

[0007] The purpose of this utility model is to overcome the shortcomings of the prior art and solve the problem of jamming caused by misalignment during insertion and removal of existing products, as well as the product leakage problem caused by excessive leakage or misalignment and jamming of the valve core due to liquid pressure impact during insertion / disconnection when one side is under high pressure.

[0008] To solve the above-mentioned technical problems, this utility model is implemented using the following technical solution:

[0009] A fluid connector with a low flow resistance valve core is provided, including a plug and a socket adapted to the plug, wherein the plug and the socket are respectively provided with a first housing and a second housing, a movable valve core is provided in the first housing, and a fixed valve core is provided in the second housing;

[0010] A first flow guiding structure is provided at the axis of the movable valve core, and an outlet is provided at the opposite end of the first flow guiding structure. A first flow window is provided on the side wall of the movable valve core.

[0011] The fixed valve core has a second flow guiding structure on one end face and a second flow window and a third flow guiding structure disposed thereon on the other end face;

[0012] A gap is provided between the fixed valve core and the socket housing to allow the fixed valve core to float in the axial direction, and an arc-shaped structure is provided on the inner edge of the socket housing to allow the fixed valve core to float in the radial direction;

[0013] The second flow guiding structure is arranged opposite to the first flow guiding structure. The end face of the second flow guiding structure is provided with a guide structure for cooperating with the end face of the movable valve core, so that the movable valve core and the fixed valve core can achieve axial guiding cooperation when they are inserted, thereby allowing the movable valve core to guide the fluid entering from the first flow window to the outlet through the internal flow guiding structure.

[0014] Furthermore, the guide structure includes a guide protrusion and a guide groove; a guide protrusion is provided at the end face of the second flow guiding structure of the fixed valve core, and a guide groove that matches the guide protrusion is provided at the end face of the first flow guiding structure of the movable valve core.

[0015] Furthermore, the first flow guiding structure is a cone pointing towards the water outlet.

[0016] Furthermore, the first flow window is configured as a plurality of windows arranged in a ring array around the axis of the active valve core.

[0017] Furthermore, the angle formed by the plane where the first flow window is located and the plane where the end face of the movable valve core is located, pointing towards the axis of the movable valve core, is an acute angle.

[0018] Furthermore, the second flow guiding structure is configured as a frustum, with the side with a larger bottom radius connected to the end face where the guide protrusion is located, and the other bottom surface pointing towards the second flow window.

[0019] Furthermore, the outlet of the movable valve core is connected to a spring, and the spring enables axial reciprocating motion within the first housing.

[0020] Furthermore, a bottom disk is connected to the end face where the third flow guiding structure is located, and the bottom disk and the third flow guiding structure form a second flow guiding window; the fixed valve core is axially limited by the bottom disk in the second housing.

[0021] Furthermore, a pressure relief protrusion is provided at the end where the second flow window is located.

[0022] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0023] 1. This utility model provides a guide structure on the end faces of the fixed valve core and the movable valve core, enabling active guidance during the initial stage of plug and socket insertion. This effectively avoids problems such as insertion difficulties or jamming caused by axial misalignment or angular deviation, improving the success rate of insertion and ease of operation. After insertion, the guide structure ensures that the movable valve core and the fixed valve core maintain a stable axial concentric relationship during use, reducing the risk of vibration and misalignment, and ensuring the continuity of the fluid passage and the reliability of the seal.

[0024] 2. This utility model provides an axial floating gap between the fixed valve core and the socket housing, and designs the edge of the socket housing as an arc-shaped structure, so that the fixed valve core has axial and radial floating capabilities. This allows it to automatically adapt to minor positional deviations during the insertion process, buffer the insertion force, reduce local stress concentration, and further avoid problems such as leakage and jamming caused by tolerance accumulation or external interference. Attached Figure Description

[0025] Figure 1 The figure shown is a cross-sectional view of the movable valve core and the fixed valve core provided by this utility model.

[0026] Figure 2 The figure shown is a cross-sectional view of the movable valve core provided by this utility model;

[0027] Figure 3 The figure shown is a cross-sectional view of the fixed valve core provided by this utility model;

[0028] Figure 4 The diagram shown is a schematic of the fixed valve core floating structure provided by this utility model.

[0029] Figure label:

[0030] 1. Movable valve core; 2. Fixed valve core; 11. First flow guide structure; 12. Outlet; 13. First flow window; 21. Second flow guide structure; 22. Second flow window; 23. Third flow guide structure; 24. Bottom disc; 25. Pressure relief protrusion; 3. Guide structure; 31. Guide protrusion; 32. Guide groove; 4. Spring; 5. Gap. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1:

[0033] like Figure 2 and Figure 3 As shown, a fluid connector with a low flow resistance valve core is provided, including a plug and a socket adapted to the plug. The plug and the socket are respectively provided with a first housing and a second housing. A movable valve core 1 is provided in the first housing and a fixed valve core 2 is provided in the second housing.

[0034] A first flow guiding structure 11 is provided at the axis of the movable valve core 1. The first flow guiding structure 11 is a cone pointing towards the outlet 12. In this embodiment, the cone faces the outlet 12, thereby guiding the water from the first flow window 13. The outlet 12 is provided at the opposite end of the first flow guiding structure 11, and the first flow window 13 is provided on the side wall of the movable valve core 1. The first flow windows 13 are arranged in a ring array around the axis of the movable valve core 1, thereby increasing the space for fluid movement. When the movable valve core 1 and the fixed valve core 2 are inserted, they are contacted synchronously through the guide structure 3. The fixed valve core 2 pushes the movable valve core 1, and the movable valve core 1 guides the fluid entering through the first flow window 13 to the outlet 12 through the flow guiding structure.

[0035] Wherein, the angle formed by the plane containing the first flow window 13 and the plane containing the end face of the movable valve core 1 pointing towards the axis of the movable valve core 1 is an acute angle; such as Figure 2 As shown, in this embodiment, the angle at point A is set to an acute angle. According to actual data testing, the angle at point A is preferably 84°.

[0036] like Figure 4 As shown, a gap 5 is provided between the fixed valve core 2 and the socket housing to allow the fixed valve core 2 to float in the axial direction. The inner edge of the socket housing is provided with an arc-shaped structure to allow the fixed valve core 2 to float in the radial direction, as shown at position A in the figure. By setting the edge of the socket housing to be arc-shaped, the fixed valve core has the ability to float in both the axial and radial directions, which can automatically adapt to small positional deviations during the insertion process and avoid problems such as leakage and jamming caused by tolerance accumulation or external force interference.

[0037] The second flow guiding structure 21 is disposed opposite to the first flow guiding structure 11. The end face of the second flow guiding structure 21 is provided with a guide structure 3 for cooperating with the end face of the movable valve core 1, so that the movable valve core 1 and the fixed valve core 2 can achieve axial guiding cooperation when they are inserted, thereby allowing the movable valve core 1 to guide the fluid entering from the first flow window 13 to the outlet through the internal flow guiding structure.

[0038] The guide structure 3 includes a guide protrusion 31 and a guide groove 32; the second flow guiding structure 21 of the fixed valve core 2 is provided with a guide protrusion 31 at its end face, and the first flow guiding structure 11 of the movable valve core 1 is provided with a guide groove 32 that matches the guide protrusion 31 at its end face.

[0039] In this embodiment, the guide structure 3 is configured as a protrusion and groove combination. The guide structure 3 can be designed as a variety of structures that can achieve synchronous positioning according to actual needs, and is not limited to protrusions and grooves.

[0040] The second flow guiding structure 21 is configured as a frustum, with the side with a larger bottom radius connected to the end face of the guide protrusion 31, and the other bottom face pointing towards the second flow window 22; a groove for preventing the rubber ring from getting stuck is also provided between the second flow guiding structure 21 and the end face, so that the fluid can be guided to the third flow guiding structure 23 through the second flow guiding structure 21 under the premise of achieving a seal.

[0041] The end of the second flow window 22 is provided with a pressure relief protrusion 25. When the fluid passes through the pressure relief protrusion 25, it can flow along the edge of the pressure relief protrusion 25 to the second flow window 22, thereby reducing the direct impact force on the current end face and improving the service life of the fixed valve core 2. Example 2:

[0042] Based on Example 1, such as Figure 1 As shown, a fluid connector is provided, including: a fluid connector with a low flow resistance valve core mentioned in Embodiment 1 is used inside the fluid connector;

[0043] The outlet 12 of the movable valve core 1 is connected to the spring 4, and the spring 4 enables axial reciprocating motion within the first housing.

[0044] When the fixed valve core 2 is installed in the second housing, the end face of the third flow guiding structure 23 is connected to the bottom disk 24, and the bottom disk 24 and the third flow guiding structure 23 form a second flow guiding window; the fixed valve core 2 is axially limited by the bottom disk 24 in the second housing.

[0045] Specifically, the fixed valve core 2 and the movable valve core 1 are positioned by the guide structure 3 and installed in the second housing. The shoulder of the movable valve core 1 is axially limited by abutting against the inside of the first housing, and the tail end is connected to the spring 4 to realize the reciprocating motion along the product axis through the spring 4.

[0046] The outer circumference of the active valve core 1 has a large first flow window 13, which can effectively reduce flow resistance. The internal conical first flow guiding structure 11 can guide the flow and avoid the water sagging effect. At the same time, the first flow window 13 is set at a certain angle, which can make the flow channel smoother, effectively reduce liquid resistance and reduce backflow, and improve the flow effect.

[0047] The end of the fixed valve core 2 is installed in the second housing with the movable valve core 1 through the guide structure 3. The bottom disc 24 is axially limited by the second housing. The tail is designed with a pressure relief protrusion 25 at a certain angle so that the fixed valve core 2 does not move axially in the working state.

[0048] Specifically, the tail end of the fixed valve core 2 has several second flow windows 22 that can achieve a larger flow cross section, and the pressure relief protrusion 25 at a certain angle at the tail end can effectively reduce the impact of liquid on the end and the eddy current phenomenon.

[0049] The movable valve core 1 and the fixed valve core 2 are located within the fluid connector. When not engaged, the movable valve core 1 and the fixed valve core 2 form seals within the first housing and the second housing, respectively. When engaged, the guide protrusion 31 of the fixed valve core 2 first contacts the guide groove 32 of the movable valve core 1. After they are aligned and engaged, the fixed valve core 2 pushes the movable valve core 1 backward along the product axis, opening the flow channel. When disengaged, the movable valve core 1 follows the backward movement of the fixed valve core 2 along the axial direction.

[0050] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fluid connector with a low-flow-resistance valve core, comprising a plug and a socket adapted to the plug, characterized in that, The plug and socket are respectively provided with a first housing and a second housing, the first housing is provided with a movable valve core (1), and the second housing is provided with a fixed valve core (2). The movable valve core (1) is provided with a first flow guiding structure (11) at its axis, and an outlet (12) is provided at the opposite end of the first flow guiding structure (11). The side wall of the movable valve core (1) is provided with a first flow window (13). The fixed valve core (2) has a second flow guiding structure (21) on one end face and a second flow window (22) and a third flow guiding structure (23) on the other end face. A gap (5) is provided between the fixed valve core (2) and the socket housing to allow the fixed valve core (2) to float in the axial direction, and an arc-shaped structure is provided on the inner edge of the socket housing to allow the fixed valve core (2) to float in the radial direction; The second flow guiding structure (21) is arranged opposite to the first flow guiding structure (11). The end face of the second flow guiding structure (21) is provided with a guide structure (3) for cooperating with the end face of the movable valve core (1), so that the movable valve core (1) and the fixed valve core (2) can achieve axial guiding cooperation when they are inserted, thereby allowing the movable valve core (1) to guide the fluid entering from the first flow window (13) to the outlet (12) through the internal flow guiding structure.

2. The fluid connector with a low-flow-resistance valve core according to claim 1, characterized in that, The guide structure (3) includes a guide protrusion (31) and a guide groove (32); the second flow guide structure (21) of the fixed valve core (2) is provided with a guide protrusion (31) at the end face, and the first flow guide structure (11) of the movable valve core (1) is provided with a guide groove (32) that matches the guide protrusion (31) at the end face.

3. The fluid connector with a low-flow-resistance valve core according to claim 1, characterized in that, The first flow guiding structure (11) is a cone pointing towards the outlet (12).

4. The fluid connector with a low-flow-resistance valve core according to claim 1, characterized in that, The angle between the plane where the first flow window (13) is located and the plane where the end face of the movable valve core (1) is located, pointing towards the axis of the movable valve core (1), is an acute angle.

5. The fluid connector with a low-flow-resistance valve core according to claim 1, characterized in that, The first flow window (13) is configured as a plurality of windows arranged in an axial annular array around the active valve core (1).

6. The fluid connector with a low-flow-resistance valve core according to claim 1, characterized in that, The second flow guiding structure (21) is set as a frustum, and the side with a larger bottom radius is connected to the end face where the guide protrusion (31) is located, while the other bottom surface points to the second flow window (22).

7. The fluid connector with a low-flow-resistance valve core according to claim 1, characterized in that, The outlet (12) of the movable valve core (1) is connected to the spring (4), and the spring (4) enables axial reciprocating motion within the first housing.

8. The fluid connector with a low-flow-resistance valve core according to claim 1, characterized in that, The end face of the third flow guiding structure (23) is connected to a bottom disk (24), and the bottom disk (24) and the third flow guiding structure (23) form a second flow guiding window; the fixed valve core (2) is axially limited in the second housing by the bottom disk (24).

9. The fluid connector with a low-flow-resistance valve core according to claim 1, characterized in that, The end of the second flow window (22) is provided with a pressure relief protrusion (25).

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