A fluid connector

Abstract

The utility model discloses a kind of fluid connectors, applied to fluid joint technical field, including mutually connected socket assembly and plug assembly, the plug assembly includes the shell with cavity, sealing block and spring connected in the cavity, the first end of the spring is abutted on the end face of the sealing block, the shell is equipped with at least two clamping holes on the side wall close to the second end of the spring, the axis direction of the clamping hole is perpendicular to the axis direction of the cavity;It also includes the spring washer with elasticity, the outer periphery of the spring washer is equipped with the protrusion matched with the clamping hole, when the spring washer is pressed into the cavity along the axis direction of the cavity, the spring washer and the cavity gap cooperation, the protrusion is clamped into the clamping hole, and the spring washer compresses the end of the spring.Two fluid connectors are connected by the spring washer, and the spring washer is compressed to be in contact with the sealing block, so that the sealing block is pressed to the sealing surface of the socket assembly, and the sealing surface is pressed to the sealing surface of the plug assembly, so that the sealing surface of the socket assembly and the sealing surface of the plug assembly are in close contact, and the fluid connector is sealed.

Description

Technical Field

[0001] This utility model relates to the field of fluid connector technology, and in particular to a fluid connector. Background Technology

[0002] With the increasing integration and miniaturization of electronic devices, the heat dissipation and cooling capabilities of electronic components play a crucial role in the performance and lifespan of these devices. Liquid cooling systems, with their high heat dissipation efficiency and low noise, are gradually replacing traditional air cooling systems and becoming the mainstream choice for cooling electronic devices. As a core component of liquid cooling systems, fluid connectors must meet requirements such as rapid insertion and removal and reliable sealing to ensure the efficient operation of the cooling system.

[0003] Existing fluid connectors mainly consist of a socket assembly and a plug assembly, and their working principle is based on a precise mechanical fit. The socket assembly has multiple steel balls evenly distributed circumferentially within its inner cavity, while the plug assembly has a locking ring groove at its front end that matches the steel balls. By sliding the outer sleeve axially, the steel balls can be pressed or released, thereby controlling the on / off state of the pipeline. This design utilizes the fit between the steel balls and the locking ring groove to ensure that the connector reliably seals the pipeline when locked and quickly disconnects when released, achieving fluid flow control.

[0004] While this type of fluid connector is widely used in the petroleum and chemical industries, its complex structure and inefficient assembly process limit its further adoption. In particular, the internal design of the plug assembly requires machining grooves to create the spring's axial positioning, with locating washers and retaining rings installed within these grooves. However, this split-type locating structure not only increases the number of parts but also complicates the assembly process, requiring the separate installation of locating washers and retaining rings, making the process cumbersome. Furthermore, the grooves inside the plug assembly require secondary machining, which is difficult, increases energy consumption and process flow time, and prolongs the molding cycle of individual products. Simultaneously, the high precision required for groove machining further increases manufacturing costs, severely impacting the economic viability of large-scale production.

[0005] In summary, how to effectively solve the problems of complex structure and low processing efficiency of existing fluid connectors is an urgent issue that needs to be addressed by those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a fluid connector that is simple in structure, easy to process, and convenient to assemble.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A fluid connector includes a socket assembly and a plug assembly connected to each other. The plug assembly includes a housing having a cavity, a sealing block connected to the cavity, and a spring. A first end of the spring abuts against the end face of the sealing block. The housing has at least two snap-fit ​​holes on a side wall near a second end of the spring, the axial direction of the snap-fit ​​holes being perpendicular to the axial direction of the cavity. The connector also includes a resilient snap-fit ​​washer. The outer periphery of the snap-fit ​​washer has protrusions that mate with the snap-fit ​​holes. When the snap-fit ​​washer is pressed into the cavity along the axial direction of the cavity, the snap-fit ​​washer and the cavity are in clearance fit, the protrusions are engaged in the snap-fit ​​holes, and the snap-fit ​​washer presses against the end of the spring.

[0009] Optionally, the inner wall of the cavity is provided with a guide groove that guides the snap-fit ​​hole from the end face of the housing, and the bottom surface of the guide groove that contacts the protruding end face is an inwardly inclined slope.

[0010] Optionally, the inner end of the inclined surface extends to the snap-fit ​​hole and communicates with the snap-fit ​​hole, and the end face of the guide groove is connected to the outer end of the inclined surface through a circular arc surface transition.

[0011] Optionally, the protrusion is interference-fitted with the snap-fit ​​hole.

[0012] Optionally, the protruding end face is an arc-shaped surface that is high in the middle and low at both ends, and the arc-shaped surface of the protrusion is connected to the side by rounded corners.

[0013] Optionally, the snap-fit ​​hole is located at the minor diameter of the external thread of the housing, and the diameter of the arc-shaped surface is equal to the minor diameter of the external thread of the housing.

[0014] Optionally, the snap-fit ​​holes are evenly distributed around the axis of the housing.

[0015] Optionally, the outer diameter of the retaining spring washer is larger than the outer diameter of the spring, and the inner diameter of the retaining spring was smaller than the inner diameter of the spring.

[0016] Optionally, the retaining spring washer has a limiting groove on the side near the spring, and the end of the spring is engaged in the limiting groove.

[0017] Optionally, the snap ring washer and the end of the spring are provided with magnets that attract each other.

[0018] The beneficial effect of this utility model is that the fluid connector provided by this utility model includes a socket assembly and a plug assembly. The plug assembly includes a housing, a sealing block, a spring, and a retaining spring washer.

[0019] The housing has at least two snap-fit ​​holes on the side wall near the second end of the spring. The axis of these snap-fit ​​holes is perpendicular to the axis of the cavity and is used to mate with the snap-fit ​​washer to fix the snap-fit ​​washer. The outer periphery of the snap-fit ​​washer has protrusions that mate with the snap-fit ​​holes. The snap-fit ​​washer and the protrusions are elastic and can deform to adapt to assembly requirements.

[0020] During assembly, the snap ring washer's axis coincides with the housing's axis. Pressure is applied to the snap ring washer along the housing's axial direction. After the snap ring washer is pressed into the cavity along the axial direction, a clearance fit is formed between the snap ring washer and the cavity. The snap ring washer and the protrusion undergo elastic deformation. When it reaches the predetermined assembly position, the protrusion on the snap ring washer engages with the snap-fit ​​hole on the housing's side wall, thus limiting the snap ring washer's position. Simultaneously, the snap ring washer presses against the end of the spring, preventing the spring from slipping outwards. Through the elastic deformation of the snap ring washer and the engagement structure, the end of the spring can be firmly pressed, providing stable elastic support for the spring throughout the entire operation.

[0021] The fluid connector provided by this utility model adopts a self-locking snap ring washer. The protrusion of the snap ring washer engages with the snap-fit ​​hole on the side wall of the housing, realizing quick installation and self-locking function of spring limiting. This design only requires axial pressing to complete the installation, without additional tools or complex operations, simplifying the assembly process, significantly shortening the assembly time, and improving assembly efficiency. In addition, the snap ring washer is an integrated limiting structure, reducing the number of parts and lowering costs. At the same time, the snap-fit ​​hole is directly formed during the housing molding process, eliminating the need for secondary machining, reducing the machining accuracy requirements, shortening the single-piece molding cycle, and reducing process flow and processing energy consumption. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 An exploded view of a fluid connector provided in a specific embodiment of this utility model;

[0024] Figure 2 This is a schematic diagram of the shell structure;

[0025] Figure 3 This is a schematic diagram of the structure of a snap ring washer;

[0026] Figure 4 This is a schematic diagram of the sealing block.

[0027] Figure 5 This is a schematic diagram showing the housing and the retaining spring washer not connected.

[0028] Figure 6 This is a cross-sectional view of a fluid connector.

[0029] Figure label:

[0030] 1-Housing; 2-O-ring; 3-Sealing block; 4-Spring; 5-Snap ring washer; 11-Guide groove; 12-Snap-fit ​​hole; 51-Protrusion. Detailed Implementation

[0031] The core of this utility model is to provide a fluid connector that is simple in structure, easy to process, and convenient to assemble.

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please refer to Figures 1 to 6 , Figure 1 An exploded view of a fluid connector provided in a specific embodiment of this utility model; Figure 2 This is a schematic diagram of the shell structure; Figure 3 This is a schematic diagram of the structure of a snap ring washer; Figure 4 This is a schematic diagram of the sealing block. Figure 5 This is a schematic diagram showing the housing and the retaining spring washer not connected. Figure 6 This is a cross-sectional view of a fluid connector.

[0034] In one specific embodiment, the fluid connector provided by this utility model includes a socket assembly and a plug assembly connected to each other. The plug assembly includes a housing 1 with a cavity, a sealing block 3 connected to the cavity, and a spring 4. The first end of the spring 4 abuts against the end face of the sealing block 3. The housing 1 has at least two snap-fit ​​holes 12 on the side wall near the second end of the spring 4. The axial direction of the snap-fit ​​holes 12 is perpendicular to the axial direction of the cavity. It also includes an elastic snap-fit ​​washer 5. The outer periphery of the snap-fit ​​washer 5 has a protrusion 51 that cooperates with the snap-fit ​​hole 12. When the snap-fit ​​washer 5 is pressed into the cavity along the axial direction of the cavity, the snap-fit ​​washer 5 is in clearance fit with the cavity, the protrusion 51 is snapped into the snap-fit ​​hole 12, and the snap-fit ​​washer 5 presses the end of the spring 4.

[0035] In the above structure, the fluid connector includes a socket assembly and a plug assembly. The socket assembly can be a common socket in the prior art, and the plug assembly includes a housing 1, a sealing block 3, a spring 4, and a retaining ring washer 5.

[0036] The housing 1 has an internal cavity for accommodating other components. A sealing block 3 is installed within the cavity of the housing 1. An O-ring 2 is connected to the annular groove of the sealing block 3 to provide a seal and ensure proper fluid flow within the connector. The sealing block 3 is typically made of corrosion-resistant and high-pressure-resistant materials to adapt to various working environments. A spring 4 is installed within the cavity, with its first end abutting against the end face of the sealing block 3, providing elastic support and ensuring the stability and reliability of the sealing performance.

[0037] The housing 1 has at least two snap-fit ​​holes 12 on the side wall near the second end of the spring 4. The axial direction of these snap-fit ​​holes 12 is perpendicular to the axial direction of the cavity and is used to mate with the snap-fit ​​washer 5 to fix the snap-fit ​​washer 5. The outer periphery of the snap-fit ​​washer 5 has a protrusion 51 that mates with the snap-fit ​​hole 12. The snap-fit ​​washer 5 and the protrusion 51 are elastic and can deform to adapt to assembly requirements.

[0038] During assembly, the axis of the retaining spring washer 5 coincides with the axis of the housing 1. Pressure is applied to the retaining spring washer 5 along the axial direction of the housing 1. After the retaining spring washer 5 is pressed into the cavity along the axial direction, a clearance fit is formed between the retaining spring washer 5 and the cavity. The retaining spring washer 5 and the protrusion 51 undergo elastic deformation. When the predetermined assembly position is reached, the protrusion 51 on the retaining spring washer 5 engages with the snap-fit ​​hole 12 on the side wall of the housing 1, thereby limiting the retaining spring washer 5. At the same time, the retaining spring washer 5 presses the end of the spring 4 to prevent the spring 4 from retracting. Through the elastic deformation of the retaining spring washer 5 and the engagement structure, the end of the spring 4 can be firmly pressed, and the retaining spring washer 5 provides stable elastic support for the spring 4 throughout the entire working process.

[0039] The fluid connector provided by this utility model adopts a self-locking snap ring washer 5. The protrusion 51 of the snap ring washer 5 engages with the snap-fit ​​hole 12 on the side wall of the housing 1, realizing the quick installation and self-locking function of the spring 4 limiting position. This design only requires axial pressing to complete the installation, without additional tools or complex operations, simplifying the assembly process, significantly shortening the assembly time, and improving assembly efficiency. In addition, the snap ring washer 5 is an integrated limiting structure, reducing the number of parts and lowering costs. At the same time, the snap-fit ​​hole 12 is directly formed during the molding process of the housing 1, without secondary machining, reducing the machining accuracy requirements, shortening the single-piece molding cycle, and reducing process flow and processing energy consumption. It is suitable for applications requiring rapid assembly and high reliability, such as liquid cooling systems for electronic devices, effectively reducing product costs and improving processing efficiency.

[0040] Based on the above specific embodiments, the inner wall of the cavity is provided with a guide groove 11 that guides the snap-fit ​​hole 12 from the end face of the housing 1. The bottom surface of the guide groove 11 that contacts the end face of the protrusion 51 is an inwardly inclined slope.

[0041] In one specific embodiment, to further optimize the assembly process, a guide groove 11 extending from the end face of the housing 1 to the snap-fit ​​hole 12 is provided on the inner wall of the cavity. During the assembly of the plug assembly, the protrusion 51 of the snap ring washer 5 slides into the snap-fit ​​hole 12 along the guide groove 11, achieving rapid positioning and fixation, simplifying the assembly process and improving assembly efficiency.

[0042] The bottom surface of the guide groove 11, which contacts the end face of the protrusion 51, is inclined inward from the end face of the housing 1 towards the snap-fit ​​hole 12. This incline allows the protrusion 51 to gradually adapt to the shape of the snap-fit ​​hole 12 during sliding, ultimately snapping into place smoothly, reducing potential jamming or misalignment problems during assembly. The gentle inclination angle, such as 15°, not only ensures a smooth transition for the protrusion 51 as it slides into the snap-fit ​​hole 12, but also disperses stress generated during assembly, preventing stress concentration and thus reducing assembly difficulty and improving assembly efficiency.

[0043] Based on the above specific embodiments, the inner end of the inclined surface extends to the snap-fit ​​hole 12 and communicates with the snap-fit ​​hole 12, and the end face of the guide groove 11 is connected to the outer end of the inclined surface through a circular arc surface transition.

[0044] In one specific embodiment, a sloped structure is provided on the inner wall of the cavity, with the inner end of the slope extending to the snap-fit ​​hole 12, and the slope communicating with the snap-fit ​​hole 12. During assembly, the protrusion 51 slides continuously along the slope and seamlessly into the snap-fit ​​hole 12 without any jamming or misalignment. Alternatively, there may be a gap between the inner end of the slope and the snap-fit ​​hole 12, and the wall thickness of the shell 1 at the outer periphery of the snap-fit ​​hole 12 is not reduced to ensure the strength around the snap-fit ​​hole 12.

[0045] To further optimize the assembly process, the end face of the guide groove 11 is connected to the outer end of the inclined surface via a circular arc surface. This circular arc surface not only guides the protrusion 51 smoothly into the inclined surface but also provides a smoother transition during assembly, reducing stress concentration caused by abrupt angle changes. The radius of the circular arc surface can extend to the entire end face of the housing 1, resulting in a larger opening in the guide groove 11. The end face of the protrusion 51 falls into the circular arc surface, allowing it to enter the guide groove 11 more easily, further simplifying the assembly process and improving assembly efficiency.

[0046] Based on the above specific embodiments, the protrusion 51 and the snap-fit ​​hole 12 are interference-fitted.

[0047] In one specific embodiment, the protrusion 51 of the snap ring washer 5 and the snap-fit ​​hole 12 on the housing 1 are interference fit. The size of the protrusion 51 is slightly larger than the size of the snap-fit ​​hole 12. Specifically, the width and / or thickness of the protrusion 51 is slightly larger than the width and / or thickness of the snap-fit ​​hole 12 to ensure that there is a certain amount of interference between the two.

[0048] During assembly, a certain force needs to be applied to the protrusion 51 of the snap ring washer 5 to gradually deform it and smoothly enter the snap-fit ​​hole 12. Once the assembly is completed, the protrusion 51 will be tightly fixed in the snap-fit ​​hole 12 under the action of elastic restoring force, realizing the self-locking function.

[0049] Furthermore, the retaining ring washer 5 can be made of a material with certain elasticity and strength, such as spring steel or stainless steel, to ensure that it can withstand the stress generated by the interference fit during assembly, while maintaining stable performance under working conditions.

[0050] To achieve an effective interference fit, the dimensional accuracy requirements for the protrusion 51 and the snap-fit ​​hole 12 are high. The size of the protrusion 51 is slightly larger than the size of the snap-fit ​​hole 12, and the interference amount is usually between a few micrometers and tens of micrometers. The specific value is optimized according to the actual application requirements and material properties.

[0051] The interference fit not only ensures a firm connection between the retaining ring washer 5 and the housing 1, but also improves the stability and reliability of the overall structure, effectively preventing loosening caused by vibration or external force.

[0052] Based on the above specific embodiments, the end face of the protrusion 51 is an arc-shaped surface that is high in the middle and low at both ends, and the arc-shaped surface of the protrusion 51 is connected to the side by rounded corners.

[0053] In one specific embodiment, the protrusion 51 of the retaining spring washer 5 has an arc-shaped end face, with its middle position higher than both ends. Preferably, the arc-shaped surface of the protrusion 51 is concentric with the outer wall of the retaining spring washer 5.

[0054] During assembly, the central protrusion of protrusion 51 first enters the snap-fit ​​hole 12, and then the two ends slide smoothly into and are fixed along the arc surface. This design makes it easier for protrusion 51 to initially enter the snap-fit ​​hole 12 and enables self-adjustment of the center position during snap-fit, thereby reducing friction and stress concentration during assembly and further optimizing assembly efficiency and reliability.

[0055] The curved surface of protrusion 51 is connected to the side surface by a rounded corner. The rounded corner not only reduces friction during assembly but also avoids stress concentration problems that may be caused by sharp edges. Combined with the curved surface structure, the surface of protrusion 51 is smooth, and protrusion 51 slides more smoothly when entering the snap-fit ​​hole 12, which can slide into the snap-fit ​​hole 12 more smoothly and improve assembly efficiency.

[0056] Based on the above specific embodiments, the snap-fit ​​hole 12 is formed at the minor diameter of the external thread of the housing 1, that is, at the thread groove. The snap-fit ​​hole 12 is relatively shallow, resulting in minimal reduction in the mechanical strength of the housing 1. This structure makes full use of the mechanical strength of the thread, ensuring that the housing 1 at the location of the snap-fit ​​hole 12 still has sufficient structural strength and stability.

[0057] The protrusion 51 of the retaining ring washer 5 has an arc-shaped end face that is higher in the middle and lower at both ends, and the diameter of the arc-shaped surface is equal to the minor diameter of the external thread of the housing 1. When the protrusion 51 is engaged in the snap-fit ​​hole 12, the arc-shaped surface is relatively flush with the outer wall of the housing 1, which not only ensures the cleanliness of the surface of the housing 1, but also avoids interference problems caused by the protrusion 51, ensuring that the subsequent connection of the external thread of the housing 1 is not affected. In addition, the engagement length between the protrusion 51 and the snap-fit ​​hole 12 is relatively long. The longer engagement length enhances the reliability of the snap-fit, ensuring a stable connection under various working conditions.

[0058] Based on the above specific embodiments, the snap-fit ​​holes 12 are evenly distributed around the axis of the housing 1.

[0059] In one specific embodiment, there can be two snap-fit ​​holes 12, which are symmetrically distributed on the housing 1, spaced 180° apart. The corresponding protrusions 51 are evenly distributed along the circumference of the retaining spring washer 5. During assembly, the two protrusions 51 respectively snap into their corresponding snap-fit ​​holes 12, maximizing and symmetrically distributing the distance between the retaining spring washer 5 and the two connection points of the housing 1. This results in a uniform distribution of the connecting force exerted by the housing 1 on the retaining spring washer 5, leading to a stable fixing effect.

[0060] This symmetrical snap-fit ​​structure not only provides a secure connection but also simplifies the installation process due to fewer stress points. During installation, the protrusion 51 deforms more easily when pressed into the snap-fit ​​hole 12, making the operation simpler and easier to execute, thereby reducing operational difficulty and improving assembly efficiency.

[0061] In another specific embodiment, the number of snap-fit ​​holes 12 can be set to multiple, such as four or more. In this structure, the snap-fit ​​holes 12 are evenly distributed around the axis of the housing 1, while the protrusions 51 on the snap spring washer 5 are evenly arranged along its circumference, forming a centrally symmetrical layout. Through the multi-point connection method, the connection strength between the snap spring washer 5 and the housing 1 is enhanced, and the snap spring washer 5 can be evenly and firmly fixed to the housing 1, thereby achieving a better fixing effect.

[0062] The multi-point evenly distributed snap-fit ​​method makes the force on the snap spring washer 5 more balanced, reducing mechanical vibration or deformation caused by asymmetrical distribution. At the same time, because the force distribution at each force point is balanced, it avoids the situation where the protrusion 51 will detach from the snap-fit ​​hole 12 due to excessive force on one end, thereby improving the overall stability.

[0063] Based on the above specific embodiments, the outer diameter of the retaining spring washer 5 is larger than the outer diameter of the spring 4, and the inner diameter of the retaining spring washer 5 is smaller than the inner diameter of the spring 4, that is, the retaining spring washer 5 has a larger outer diameter and a smaller inner diameter. During assembly, the width of the retaining spring washer 5 can completely cover the diameter of the spring 4, thereby providing stable support and positioning for the spring 4.

[0064] Furthermore, the width of the retaining ring washer 5 also takes into account the possibility of spring 4 shifting or deforming. Even if spring 4 shifts towards the inner wall of housing 1, retaining ring washer 5 can still cover the position of spring 4 after shifting. In other words, regardless of whether spring 4 shifts or deforms, its entire bottom surface will always abut against retaining ring washer 5, thereby ensuring the stable fixation and reliable positioning of spring 4.

[0065] Based on the above specific embodiments, the retaining spring washer 5 has a limiting groove on the side near the spring 4. The inner and outer diameters of the limiting groove are approximately the same as the diameter of the spring 4. The end of the spring 4 is engaged in the limiting groove, which tightly wraps around the end of the spring 4, thereby effectively limiting the spring 4. During operation, even if subjected to external force, the spring 4 will not shift laterally or deform, ensuring the stability of the spring 4.

[0066] Based on the above specific embodiments, the ends of the retaining ring washer 5 and the spring 4 are provided with magnets that attract each other. During assembly, the retaining ring washer 5 and the spring 4 can be quickly and accurately aligned with each other and tightly connected by magnetic attraction. The attraction force of the magnets ensures that the end of the spring 4 always remains in close contact with the retaining ring washer 5 during assembly and operation, reducing loosening caused by vibration or external force and enhancing the connection stability between the retaining ring washer 5 and the spring 4.

[0067] During assembly, the magnet at the end of spring 4 aligns with the magnet on the retaining ring washer 5, and the end of spring 4 is fixed to the retaining ring washer 5 by magnetic attraction. Subsequently, the retaining ring washer 5, through its protrusion 51, snaps into the snap-fit ​​hole 12 of the housing 1, completing the overall fixation and positioning. The magnetic attraction provides additional constraint, ensuring a tight fit between the end of spring 4 and the retaining ring washer 5. Even under external force, the end of spring 4 will not shift laterally or deform. Furthermore, the magnetic attraction simplifies the assembly process, making it easier to align and fix the end of spring 4 with the retaining ring washer 5, reducing assembly difficulty.

[0068] Preferably, the magnet is embedded in the limiting groove of the retaining spring washer 5 and inside the end of the spring 4. The outer surface of the spring 4 remains flat and fits tightly with the retaining spring washer 5, resulting in a large contact area. This large-area fit not only ensures the accurate positioning of the spring 4 but also effectively prevents the spring 4 from shifting during operation. Simultaneously, the embedded design avoids interference problems that might arise from exposed magnets, making the assembly process smoother and reducing assembly difficulty.

[0069] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0070] The fluid connector provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model. Therefore, this utility model is not limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fluid connector, characterized in that, The device includes a socket assembly and a plug assembly that are interconnected. The plug assembly includes a housing (1) with a cavity, a sealing block (3) connected to the cavity, and a spring (4). The first end of the spring (4) abuts against the end face of the sealing block (3). The housing (1) has at least two snap-fit ​​holes (12) on the side wall near the second end of the spring (4). The axial direction of the snap-fit ​​holes (12) is perpendicular to the axial direction of the cavity. The device also includes a spring retainer (5) with elasticity. The outer periphery of the spring retainer (5) has a protrusion (51) that cooperates with the snap-fit ​​hole (12). When the spring retainer (5) is pressed into the cavity along the axial direction of the cavity, the spring retainer (5) is in clearance fit with the cavity, the protrusion (51) is inserted into the snap-fit ​​hole (12), and the spring retainer (5) presses against the end of the spring (4).

2. The fluid connector according to claim 1, characterized in that, The inner wall of the cavity is provided with a guide groove (11) that guides the snap-fit ​​hole (12) from the end face of the housing (1). The bottom surface of the guide groove (11) that contacts the end face of the protrusion (51) is an inwardly inclined slope.

3. The fluid connector according to claim 2, characterized in that, The inner end of the inclined surface extends to the snap-fit ​​hole (12) and communicates with the snap-fit ​​hole (12). The end face of the guide groove (11) is connected to the outer end of the inclined surface through a circular arc surface transition.

4. The fluid connector according to claim 1, characterized in that, The protrusion (51) is interference-fitted with the snap-fit ​​hole (12).

5. The fluid connector according to claim 1, characterized in that, The end face of the protrusion (51) is an arc-shaped surface that is high in the middle and low at both ends, and the arc-shaped surface of the protrusion (51) is connected to the side by rounded corners.

6. The fluid connector according to claim 5, characterized in that, The snap-fit ​​hole (12) is located at the minor diameter of the external thread of the housing (1), and the diameter of the arc-shaped surface is equal to the minor diameter of the external thread of the housing (1).

7. The fluid connector according to claim 1, characterized in that, The snap-fit ​​holes (12) are evenly distributed around the axis of the housing (1).

8. The fluid connector according to claim 1, characterized in that, The outer diameter of the retaining ring washer (5) is larger than the outer diameter of the spring (4), and the inner diameter of the retaining ring washer (5) is smaller than the inner diameter of the spring (4).

9. The fluid connector according to claim 8, characterized in that, The retaining spring washer (5) has a limiting groove on the side near the spring (4), and the end of the spring (4) is inserted into the limiting groove.

10. The fluid connector according to claim 8, characterized in that, The ends of the retaining ring washer (5) and the spring (4) are provided with magnets that attract each other.

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