A fluid connector

Abstract

This utility model discloses a fluid connector, including a plug and a socket that are interlocked. The socket includes a socket housing and a button locking device installed at the axial rear end of the socket housing. The axial front end of the socket housing is connected to a pipeline. The front end of the plug is inserted into the axial rear end of the socket housing. The button locking device can connect to and lock the middle of the plug. A protective sleeve is fitted at the axial rear end of the socket housing. An elastic stop is provided on the protective sleeve. During plug insertion and removal, the protective sleeve is fixed in position. The button locking device automatically unlocks and pushes the elastic stop to deform elastically. The plug can be smoothly inserted and removed without moving the protective sleeve. However, the elastic stop provides a certain support force and still has an anti-accidental touch design. The operation is more convenient and the operation steps are simplified. Regardless of whether the protective sleeve moves or not, there is no need to restrict the specific state of the socket. The plug and socket can be inserted normally. It has multiple unlocking methods and improves the applicability.

Description

Technical Field

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

[0002] Electronic devices commonly use two cooling methods: air cooling and liquid cooling. With the trend of device integration and miniaturization, the heat dissipation and cooling of electronic components directly affect the performance and lifespan of the device. Liquid cooling has advantages such as high heat dissipation efficiency, low noise, and small footprint, so it has been widely used to replace air cooling in the cooling systems of electronic devices.

[0003] Fluid connectors are crucial components for connecting high-pressure fluid pipelines and controlling pipeline on / off connections, and the connection between their plugs and sockets is particularly important. Quick-connect fluid couplings with push-button locks are widely used in petroleum, chemical, metallurgical, hydropower, engineering machinery, shipbuilding, and electromechanical equipment industries due to their rapid insertion and removal, one-way sealing, and backflow prevention function.

[0004] However, existing button locks lack anti-accidental touch design and mechanical limit during reset, which can easily lead to accidental unlocking, resulting in low operational safety and poor mechanism stability.

[0005] Therefore, how to provide a fluid connector that can prevent accidental contact is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a fluid connector that uses a protective sleeve to restrict the button locking device from separating and unlocking the plug, thereby achieving an anti-accidental touch design, avoiding accidental unlocking, and improving operational safety and mechanism stability.

[0007] To solve the above-mentioned technical problems, this utility model provides a fluid connector, including a plug and a socket that are plugged into each other. The socket includes a socket housing and a button locking device installed at the axial rear end of the socket housing. The axial front end of the socket housing is connected to a pipeline. The front end of the plug is inserted into the axial rear end of the socket housing. The button locking device can connect to and lock the middle part of the plug. A protective sleeve is fitted at the axial rear end of the socket housing. An elastic stop is provided on the protective sleeve. After the plug is inserted into the socket, the elastic stop prevents the button locking device from separating and unlocking from the plug. During the plug insertion and removal process, the protective sleeve is fixed in position, and the button locking device automatically unlocks and pushes the elastic stop to deform elastically.

[0008] Preferably, the button locking device includes a locking ring and a button disposed on one radial side of the locking ring. The axial rear end of the socket housing is provided with a radially penetrating mounting groove. The locking ring is inserted into the mounting groove. A positioning groove is provided at a corresponding position on the outer wall of the middle part of the plug. The inner peripheral edge of the locking ring can be embedded in the positioning groove to restrict the axial movement of the plug relative to the socket housing. Radially pushing the button can disengage the inner peripheral edge of the locking ring from the positioning groove.

[0009] Preferably, a limiting block is provided on the other radial side of the locking ring, a notch for placing the button is provided on one radial side of the protective sleeve, and a limiting hole is provided on the other radial side of the protective sleeve. The protective sleeve can move axially relative to the socket housing. When locked, the limiting hole is misaligned with the limiting block, and the limiting block abuts against the inner wall of the protective sleeve to restrict the radial movement of the locking ring. When unlocked, the limiting hole is aligned with the limiting block, and the limiting block can be inserted into the limiting hole to radially push the button and cause the locking ring to move radially.

[0010] Preferably, the elastic stop is installed in the limiting hole. After the plug is inserted into the socket, the limiting block and the elastic stop abut against each other, restricting the radial movement of the locking ring. During the plug insertion and removal process, the locking ring automatically unlocks and moves radially, driving the limiting block to push the elastic stop outward. After the plug is inserted into place, the elastic stop pushes the locking ring to move radially and reset.

[0011] Preferably, the inner wall of the axial front end of the protective sleeve is provided with a snap-fit ​​block, and the outer wall of the socket housing is provided with a snap-fit ​​groove at a corresponding position. The snap-fit ​​block can be inserted into the snap-fit ​​groove, the axial length of the snap-fit ​​groove is greater than the thickness of the snap-fit ​​block, and the snap-fit ​​block moves in the snap-fit ​​groove when the protective sleeve moves axially.

[0012] Preferably, the elastic stop block is integrally formed with one side edge of the limiting hole, and the inner periphery of the locking ring is provided with a guide slope and connected with an elastic reset member.

[0013] Preferably, the outer wall of the protective sleeve is provided with anti-slip protrusions.

[0014] Preferably, the socket housing is provided with a sealing rod and a base inside, the front end of the sealing rod is fixedly connected to the base, and the base abuts against the bottom surface inside the socket housing cavity.

[0015] Preferably, the base has a stepped through hole in the middle, the front end of the sealing rod is inserted into the stepped through hole and connected to a nut, and the nut is embedded in the stepped through hole.

[0016] Preferably, the sealing rod and the base are integrally injection molded.

[0017] This utility model provides a fluid connector, including a plug and a socket that are interlocked. The socket includes a socket housing and a button locking device installed at the axial rear end of the socket housing. The axial front end of the socket housing is connected to a pipeline. The front end of the plug is inserted into the axial rear end of the socket housing. The button locking device can connect to and lock the middle of the plug. A protective sleeve is fitted at the axial rear end of the socket housing.

[0018] During operation, the plug is inserted into the socket. Once fully inserted, the button locking device connects and locks the plug. Simultaneously, the protective sleeve limits the travel of the button locking device. To unlock, the protective sleeve must be moved first to release the button locking device's limit, thus unlocking the plug and separating it from the socket. An anti-accidental-touch design is incorporated, limiting the movement of the button locking device via the protective sleeve. Unlocking requires moving the protective sleeve first, increasing the unlocking operation and preventing accidental unlocking, thus improving operational safety and mechanism stability. Furthermore, the protective sleeve features a spring-loaded stop. After the plug is inserted into the socket, the spring-loaded stop prevents the button locking device from separating from the plug. During plug insertion and removal, the protective sleeve remains fixed, and the button locking device automatically unlocks and pushes the spring-loaded stop to deform elastically. This allows for smooth plug insertion and removal without moving the protective sleeve. However, the spring-loaded stop provides some support, still preventing accidental-touch. Operation is more convenient and simplified. Regardless of whether the protective sleeve moves or not, and without restricting the socket's specific state, the plug and socket can be inserted and removed normally. Multiple unlocking methods enhance the applicability. Attached Figure Description

[0019] Figure 1 A schematic diagram of a specific embodiment of the fluid connector provided by this utility model;

[0020] Figure 2 An exploded view of a specific embodiment of the fluid connector provided by this utility model;

[0021] Figure 3 A schematic diagram of the socket housing in one specific embodiment of the fluid connector provided by this utility model;

[0022] Figure 4 A schematic diagram of the button locking device in one specific embodiment of the fluid connector provided by this utility model;

[0023] Figure 5 A schematic diagram of the protective sleeve in a specific embodiment of the fluid connector provided by this utility model;

[0024] Figure 6This is a schematic diagram illustrating the installation of the protective sleeve in one specific embodiment of the fluid connector provided by this utility model.

[0025] Figure 7 This is a schematic diagram of the installation of the protective sleeve from another perspective in a specific embodiment of the fluid connector provided by this utility model.

[0026] Figure 8 This is a schematic diagram of the sealing rod in one specific embodiment of the fluid connector provided by this utility model.

[0027] The components include: socket housing 1, mounting groove 1-1, snap-fit ​​groove 1-2, button locking device 2, locking ring 2-1, button 2-2, limit block 2-3, protective sleeve 3, notch 3-1, limit hole 3-2, snap-fit ​​block 3-3, anti-slip protrusion 3-4, elastic stop block 3-5, sealing rod 4, base 5, nut 6, fixed sealing ring 7, movable sealing ring 8, conical spring 9, plug housing 10, and sealing platform 11. Detailed Implementation

[0028] The core of this utility model is to provide a fluid connector that uses a protective sleeve to restrict the button locking device from separating and unlocking the plug, thereby achieving an anti-accidental touch design, avoiding accidental unlocking, and improving operational safety and mechanism stability.

[0029] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Please refer to Figure 1 and Figure 2 , Figure 1 A schematic diagram of a specific embodiment of the fluid connector provided by this utility model; Figure 2 This is an exploded view of a specific embodiment of the fluid connector provided by this utility model.

[0031] This utility model provides a fluid connector, including a plug and a socket that are interlocked. The socket includes a socket housing 1 and a sealing rod 4, a base 5, a fixed sealing ring 7, a movable sealing ring 8, and a conical spring 9 installed inside the socket housing 1. The plug includes a plug housing 10 and a sealing platform 11 and a straight spring installed inside the plug housing 10. The axial front end of the socket housing 1 is connected to a pipeline, and the front end of the socket housing 1 is cold-pressed and riveted to the pipeline. The front end of the plug housing 10 is inserted into the axial rear end of the socket housing 1, and the axial rear end of the plug housing 10 is connected to a cold plate. The front end of the sealing rod 4 is fixedly connected to the base 5, and the base 5 abuts against the bottom surface of the internal cavity of the socket housing 1 at the front end. The fixed sealing ring 7 is further installed at the rear end opening of the internal cavity of the socket housing 1. The movable sealing ring 8 is fitted onto the sealing rod 4, and the conical spring 9 is fitted onto the sealing rod 4. The front end of the conical spring 9 abuts against the base 5, and the rear end of the conical spring 9 abuts against the movable sealing ring 8. The front end of the straight spring abuts against the sealing platform 11, and the rear end of the straight spring abuts against the rear end face of the internal cavity of the plug housing 10.

[0032] When the plug and socket are separated, the conical spring 9 pushes the movable sealing ring 8 to the rear opening of the socket housing 1. The outer wall of the movable sealing ring 8 makes sealing contact with the inner wall of the fixed sealing ring 7, and the inner wall of the movable sealing ring 8 makes sealing contact with the rear outer wall of the sealing rod 4, thus sealing the socket. Simultaneously, the outer wall of the inner sealing platform 11 of the plug makes sealing contact with the front inner wall of the plug housing 10, thus sealing the plug. When the plug and socket are inserted, the front outer wall of the plug housing 10 makes sealing contact with the inner wall of the fixed sealing ring 7. The sealing rod 4 pushes the sealing platform 11 backward, causing the outer wall of the sealing platform 11 to separate from the front inner wall of the plug housing 10. The movable sealing ring 8 separates from the fixed sealing ring 7 and the sealing rod 4, achieving both conductivity and sealing between the plug and socket cavities. When separated again, all components reset under the action of the springs, and the plug and socket seal again. To ensure sealing effectiveness, sealing rings are provided at each sealing contact position.

[0033] Furthermore, the socket also includes a button locking device 2 installed at the axial rear end of the socket housing 1. The button locking device 2 can connect to and lock the middle part of the plug. The axial rear end of the socket housing 1 is fitted with a protective sleeve 3, which can restrict the button locking device 2 from being separated and unlocked from the plug.

[0034] During operation, the plug is inserted into the socket. Once fully inserted, the button locking device 2 connects and locks the plug. Simultaneously, the protective sleeve 3 limits the travel of the button locking device 2. To unlock, the protective sleeve must be moved first to release the limit of the button locking device, thus unlocking the button locking device 2 from the plug and separating the plug from the socket. An anti-accidental-touch design is incorporated, restricting the movement of the button locking device 2 via the protective sleeve 3. Unlocking requires moving the protective sleeve 3 first, increasing the unlocking operation and preventing accidental unlocking, thereby improving operational safety and mechanism stability.

[0035] Furthermore, the protective sleeve 3 is equipped with an elastic stop 3-5. After the plug is inserted into the socket, the elastic stop 3-5 restricts the button locking device 2 from separating and unlocking from the plug. During the plug insertion and removal process, the protective sleeve 3 is fixed in position, and the button locking device 2 automatically unlocks and pushes the elastic stop 3-5 to deform elastically. The plug can be smoothly inserted and removed without moving the protective sleeve 3. However, the elastic stop 3-5 provides a certain support force and still has an anti-accidental touch design, making operation more convenient and simplifying the operation steps. Regardless of whether the protective sleeve 3 moves or not, there is no need to restrict the specific state of the socket. The plug and socket can be inserted normally. It has multiple unlocking methods and improves the applicability.

[0036] Please refer to Figures 3 to 7 , Figure 3 A schematic diagram of the socket housing in one specific embodiment of the fluid connector provided by this utility model; Figure 4 A schematic diagram of the button locking device in one specific embodiment of the fluid connector provided by this utility model; Figure 5 A schematic diagram of the protective sleeve in a specific embodiment of the fluid connector provided by this utility model; Figure 6 This is a schematic diagram illustrating the installation of the protective sleeve in one specific embodiment of the fluid connector provided by this utility model. Figure 7 This is a schematic diagram of the installation of the protective sleeve from another perspective in a specific embodiment of the fluid connector provided by this utility model.

[0037] Specifically, the button locking device 2 includes a locking ring 2-1 and a button 2-2. The button 2-2 is located on one radial side of the locking ring 2-1. The side of the locking ring 2-1 with the button 2-2 is defined as the beginning, and the opposite side as the end. The beginning and end of other components are referenced to this. Simultaneously, the axial rear end of the socket housing 1 has a radially penetrating mounting groove 1-1. The locking ring 2-1 is inserted into the mounting groove 1-1. A positioning groove is provided at a corresponding position on the outer wall of the middle part of the plug housing 10. After the plug is inserted into the socket, the front end of the plug housing 10 passes through the central through hole of the locking ring 2-1, and then the inner periphery of the end of the locking ring 2-1 is embedded in the positioning groove to restrict the axial movement of the plug relative to the socket housing 1, thus achieving locking. When unlocking is required, the button 2-2 is pushed radially, and the locking ring 2-1 moves towards its end, causing the inner periphery of the locking ring 2-1 to disengage from the positioning groove, releasing the axial restriction and achieving unlocking.

[0038] To prevent accidental activation, a limiting block 2-3 is provided at the radial end of the locking ring 2-1, and a notch 3-1 for placing the button 2-2 is provided at the radial beginning of the protective sleeve 3. A limiting hole 3-2 is provided at the radial end of the protective sleeve 3. The protective sleeve 3 can move axially relative to the socket housing 1. After the plug is inserted into the socket, the inner periphery of the end of the locking ring 2-1 is embedded in the positioning groove and locked. The position of the protective sleeve 3 is adjusted so that the limiting hole 3-2 is offset from the limiting block 2-3. The limiting block 2-3 abuts against the inner wall of the protective sleeve 3, restricting the locking ring 2-1 from moving to the end and keeping the inner periphery of the locking ring 2-1 in the positioning groove. At the same time, the surface of the button 2-2 is flush with the outer wall of the protective sleeve 3. When unlocking, the protective sleeve 3 is moved axially to align the limiting hole 3-2 with the limiting block 2-3. The button 2-2 is pushed radially, and the locking ring 2-1 moves to the end. The limiting block 2-3 is inserted into the limiting hole 3-2, causing the inner periphery of the locking ring 2-1 to disengage from the positioning groove, thus releasing the axial limit.

[0039] Preferably, the locking ring 2-1, button 2-2, and limiting block 2-3 are integrally formed. Sliding planes can also be provided on the other two sides of the locking ring 2-1 to facilitate insertion into the mounting groove 1-1. The protective sleeve 3 is unlocked by axial movement. Other methods can also be used, such as rotating the protective sleeve 3 to align or offset the limiting hole 3-2 with the limiting block 2-3, or using other connection methods, such as an integral or split structure for the protective sleeve 3, where the protective sleeve 3 is separated when unlocking is required. All of these are within the protection scope of this utility model.

[0040] In the fluid connector provided in this specific embodiment of the utility model, in order to prevent the protective sleeve 3 from falling off, a snap-fit ​​block 3-3 is provided on the inner wall of the axial front end of the protective sleeve 3, and a snap-fit ​​groove 1-2 is provided on the corresponding position of the outer wall of the socket housing 1, so that the snap-fit ​​block 3-3 can be inserted into the snap-fit ​​groove 1-2. Furthermore, the axial length of the snap-fit ​​groove 1-2 is greater than the thickness of the snap-fit ​​block 3-3. When the protective sleeve 3 moves axially, the snap-fit ​​block 3-3 moves within the snap-fit ​​groove 1-2, thereby limiting the stroke of the axial movement of the protective sleeve 3.

[0041] Preferably, an elastic stop 3-5 can be provided to lock and unlock the protective sleeve 3 when it is not open, improving the ease of operation. Specifically, the elastic stop 3-5 is installed in the limiting hole 3-2 and can undergo elastic deformation. After the protective sleeve 3 is properly installed, the elastic stop 3-5 is aligned with the limiting block 2-3 and is in a flush state. After the plug is inserted into the socket, the limiting block 2-3 and the elastic stop 3-5 abut against each other, restricting the radial movement of the locking ring 2-1. During the plug insertion and removal process, the locking ring 2-1 automatically unlocks and moves radially. The axial movement of the plug can be transmitted to the radial movement of the locking ring 2-1 through the guide slope, driving the limiting block 2-3 to push the elastic stop 3-5 outward to achieve unlocking. When unlocking is required, it is not necessary to move the protective sleeve 3. It is only necessary to insert and remove the plug axially. When the insertion and removal force is greater than the elastic force of the elastic stop 3-5, the locking ring 2-1 can be moved to achieve unlocking. When locking is required again after insertion, the thrust is released, causing the elastic stop 3-5 to reset, which in turn pushes the limit block 2-3 and the locking ring 2-1 to move radially in the opposite direction to reset.

[0042] Meanwhile, the elastic stop 3-5 and one side edge of the limiting hole 3-2 are integrally formed, which can be achieved by machining a Z-shaped groove during processing. Furthermore, the integral nature of the elastic stop 3-5 and one side edge of the limiting hole 3-2 allows for elastic deformation. Sufficient gaps are provided between the opposite side edges of the elastic stop 3-5 and the limiting hole 3-2, so that the limiting block can still be inserted into this gap after the protective sleeve 3 is moved axially, giving the device multiple unlocking methods. A guide slope is provided along the inner periphery of the locking ring 2-1 to facilitate the entry and exit of the plug housing 10. An elastic reset member can also be provided at the locking ring 2-1 to keep the locking ring 2-1 pressed at all times. When the button 2-2 is pressed, the elastic reset member is compressed, and when locked, the elastic reset member provides force to improve locking reliability. In addition, the outer wall of the protective sleeve 3 is provided with anti-slip protrusions 3-4.

[0043] Please refer to Figure 8 , Figure 8 This is a schematic diagram of the sealing rod in one specific embodiment of the fluid connector provided by this utility model.

[0044] Based on the fluid connectors provided in the above-described embodiments, a stepped through hole is provided in the middle of the base 5, and an external thread is provided at the front end of the sealing rod 4. During installation, the sealing rod 4 is inserted into the stepped through hole and connected to the nut 6. The nut 6 is embedded in the stepped through hole and presses against the stepped surface of the through hole. Alternatively, the sealing rod 4 and the base 5 are integrally injection molded. This method replaces the snap ring connection in the existing method, avoiding sealing failure caused by the snap ring falling off under the impact of water flow, and achieving permanent sealing and fixation.

[0045] 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 several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A fluid connector comprising a plug and a socket that interlock, characterized in that, The socket includes a socket housing (1) and a button locking device (2) installed at the axial rear end of the socket housing (1). The axial front end of the socket housing (1) is connected to a pipeline. The front end of the plug is inserted into the axial rear end of the socket housing (1). The button locking device (2) can connect to and lock the middle part of the plug. The axial rear end of the socket housing (1) is fitted with a protective sleeve (3). The protective sleeve (3) is provided with an elastic stop (3-5). After the plug is inserted into the socket, the elastic stop (3-5) restricts the button locking device (2) from separating and unlocking the plug. During the plug insertion and removal process, the protective sleeve (3) is fixed in position, and the button locking device (2) automatically unlocks and pushes the elastic stop (3-5) to elastically deform.

2. The fluid connector according to claim 1, characterized in that, The button locking device (2) includes a locking ring (2-1) and a button (2-2) disposed on one radial side of the locking ring (2-1). The axial rear end of the socket housing (1) is provided with a radially penetrating mounting groove (1-1). The locking ring (2-1) is inserted into the mounting groove (1-1). A positioning groove is provided at a corresponding position on the outer wall of the middle part of the plug. The inner periphery of the locking ring (2-1) can be embedded in the positioning groove to restrict the axial movement of the plug relative to the socket housing (1). The button (2-2) can be radially pushed to disengage the inner periphery of the locking ring (2-1) from the positioning groove.

3. The fluid connector according to claim 2, characterized in that, The locking ring (2-1) has a limiting block (2-3) on the other radial side, and the protective sleeve (3) has a notch (3-1) on one radial side for placing the button (2-2). The protective sleeve (3) has a limiting hole (3-2) on the other radial side. The protective sleeve (3) can move axially relative to the socket housing (1). When locked, the limiting hole (3-2) is offset from the limiting block (2-3), and the limiting block (2-3) abuts against the inner wall of the protective sleeve (3), restricting the radial movement of the locking ring (2-1). When unlocked, the limiting hole (3-2) is aligned with the limiting block (2-3), and the limiting block (2-3) can be inserted into the limiting hole (3-2), pushing the button (2-2) radially to make the locking ring (2-1) move radially.

4. The fluid connector according to claim 3, characterized in that, The elastic stop (3-5) is installed in the limiting hole (3-2). After the plug is inserted into the socket, the limiting block (2-3) abuts against the elastic stop (3-5) to restrict the radial movement of the locking ring (2-1). During the plug insertion and removal process, the locking ring (2-1) automatically unlocks and moves radially, driving the limiting block (2-3) to push the elastic stop (3-5) outward. After the plug is inserted into place, the elastic stop (3-5) pushes the locking ring (2-1) to move radially and reset.

5. The fluid connector according to claim 4, characterized in that, The inner wall of the protective sleeve (3) at the axial front end is provided with a snap-fit ​​block (3-3), and the outer wall of the socket housing (1) is provided with a snap-fit ​​groove (1-2) at the corresponding position. The snap-fit ​​block (3-3) can be inserted into the snap-fit ​​groove (1-2). The axial length of the snap-fit ​​groove (1-2) is greater than the thickness of the snap-fit ​​block (3-3). When the protective sleeve (3) moves axially, the snap-fit ​​block (3-3) moves in the snap-fit ​​groove (1-2).

6. The fluid connector according to claim 5, characterized in that, The elastic stop (3-5) is integrally formed with one side edge of the limiting hole (3-2), and the inner periphery of the locking ring (2-1) is provided with a guide slope and connected with an elastic reset member.

7. The fluid connector according to claim 1, characterized in that, The outer wall of the protective sleeve (3) is provided with anti-slip protrusions (3-4).

8. The fluid connector according to any one of claims 1 to 7, characterized in that, The socket housing (1) is provided with a sealing rod (4) and a base (5) inside. The front end of the sealing rod (4) is fixedly connected to the base (5), and the base (5) abuts against the bottom surface inside the cavity of the socket housing (1).

9. The fluid connector according to claim 8, characterized in that, The base (5) has a stepped through hole in the middle. The front end of the sealing rod (4) is inserted into the stepped through hole and connected to the nut (6). The nut (6) is embedded in the stepped through hole.

10. The fluid connector according to claim 8, characterized in that, The sealing rod (4) and the base (5) are integrally injection molded.

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