A liquid connector with a function of monitoring and collecting liquid leakage

Abstract

This invention proposes a liquid connector with leakage monitoring and collection functions, comprising: a pair of sockets and plugs; the socket includes a socket housing, a valve core, and a socket valve stem; the plug includes a plug housing with a through cavity, a plug inner housing with a through cavity and coaxially disposed within the plug housing, and a plug valve stem and sensor assembly; in the working state, the plug and socket are inserted to mate valve head A with valve head B, one end of the plug inner housing extends into the socket housing to mate with the valve core and pushes the valve core to a separated state from valve head A, so that the valve core and the plug inner housing are connected to form a flow channel cavity. This invention has high integration, is easy to disassemble, has high reusability, and can be used as a shelf product in various occasions.

Description

Technical Field

[0001] This invention relates to the field of heat dissipation equipment technology for electronic devices, and specifically to a liquid connector with leakage monitoring and collection functions. Background Technology

[0002] Fluid connectors are typically off-the-shelf products, connecting to structural components such as liquid-cooled cold plates via flanges or threads. While offering convenient installation and disassembly, this also introduces the risk of leakage. Both flange and threaded connections primarily rely on sealing rings and gaskets for sealing, which are less effective and reliable than welding. Damaged sealing rings (gaskets) or defects in the structural components can lead to leakage. Furthermore, coolant leakage can occur during the insertion and removal of fluid connectors. If coolant flows onto electronic equipment, it can cause short circuits, equipment burnout, and affect overall system performance.

[0003] Previous researchers have done a lot of work on connector leakage monitoring and protection. The paper "A Liquid-Monitoring Connector" proposed a liquid connector with a fluid guide that uses capillary principle to guide the leaked liquid during insertion and removal to a collector for real-time monitoring and alarm. However, this device cannot monitor leakage at the connector mounting interface. The paper "A Leakage Collection and Monitoring Device for a Blind-Made Fluid Connector" proposed a connector leakage collection and monitoring device. This device has a structure similar to a fluid distributor, is large in size, requires design for specific structures, and has low reusability. Summary of the Invention

[0004] In order to solve the technical problems existing in the background art, the present invention proposes a liquid connector with leakage detection and collection functions.

[0005] The present invention proposes a liquid connector with leakage detection and collection functions, comprising: a pair of sockets and plugs;

[0006] The socket includes a socket housing, a valve core, and a socket valve stem. The socket housing has a through cavity, one end of which is the mounting end, and the other end has a limiting shoulder A on its inner side. The valve core is axially movable inside the socket housing and is supported by an elastic element A against the limiting shoulder A. A sealing structure is provided between the outer peripheral wall of the valve core and the inner peripheral wall of the socket housing. The valve core has a through central hole. The socket valve stem is vertically installed inside the socket housing. A valve head A is provided at the top of the socket valve stem. The valve head A is located inside the central hole of the valve core and blocks the central hole.

[0007] The plug includes a plug housing with a through cavity, a plug inner housing with a through cavity and coaxially disposed within the plug housing, and a plug valve stem and a sensor assembly; the plug inner housing is fixedly connected to the plug housing, one end of the plug inner housing is located inside the plug housing and has a gap between it and the port of the plug housing; the plug valve stem is vertically disposed inside the plug inner housing and is supported by an elastic element B so that it can move axially, the plug valve stem has a valve head B, the valve head B is located at the port of the plug inner housing and forms a seal on the port; the sensor assembly includes a first conductive wire and a second conductive wire vertically disposed between the plug inner housing and the plug housing, the first conductive wire is located on one side of the second conductive wire, the ends of the first conductive wire and the second conductive wire have a height difference, and one end of both is located outside the plug housing to form a terminal;

[0008] In operation, the plug and socket are inserted to align valve head A with valve head B. One end of the plug's inner shell extends into the socket's outer shell to align with the valve core and pushes the valve core to a state of separation from valve head A, so that the valve core and the plug's inner shell are connected to form a flow channel cavity.

[0009] Preferably, the sensor assembly further includes an insulating cylinder made of insulating material, which is coaxially disposed between the inner shell of the plug and the outer shell of the plug, with a gap between the insulating cylinder and the inner shell of the plug to form a monitoring cavity, and the first conductive wire and the second conductive wire are both disposed on the inner wall of the insulating cylinder.

[0010] Preferably, the inner shell of the plug is fixedly connected to the outer shell of the plug via a connector, the connector being located between the inner shell and the outer shell of the plug; one end of the insulating cylinder has an axially extending bayonet that engages with the connector; and the other end of the insulating cylinder has a retaining ring above it to prevent axial movement.

[0011] Preferably, the first conductive wire and the second conductive wire each include a plurality of vertically arranged conductive wires and a connecting wire that connects each conductive wire in series. One end of the connecting wire is located outside the plug housing to form a contact terminal. The conductive wires in the first conductive wire and the conductive wires in the second conductive wire are alternately arranged along the outer periphery of the plug inner housing, and the ends of the conductive wires in the first conductive wire and the conductive wires in the second conductive wire have a height difference.

[0012] Preferably, the inner circumferential wall of the insulating cylinder is provided with a plurality of vertically extending mounting grooves arranged with circumferential gaps, and each conductive wire in the first conductive wire and each conductive wire in the second conductive wire are alternately arranged in each mounting groove.

[0013] Preferably, the side wall of the plug housing is provided with a wire hole, and the connecting wires of the first conductive wire and the second conductive wire are led out through the wire hole and are provided with insulation and sealing at the wire hole.

[0014] Preferably, the connecting wires in the first and second conductive wires have a glass sintered body inside the wire hole to form an insulating seal.

[0015] Preferably, a valve stem sealing ring is fixed on the valve head A at the junction of the valve head A and the center hole; the sealing structure is located at the junction of the valve core and the limiting shoulder A.

[0016] Preferably, the inner side of the port located inside the inner end of the plug housing is provided with a limiting shoulder B; the outer periphery of the valve head B is provided with a limiting boss, which abuts against the limiting shoulder B.

[0017] Preferably, a valve stem sealing ring B, which is fixed to the limiting boss, is provided at the contact point between the limiting boss and the limiting shoulder B.

[0018] Preferably, a lower sealing ring A is provided on the end face of the mounting end of the socket housing, and an inner sealing ring is also provided on the inner side of the port at the other end of the socket housing. In the plugged-in state, the inner sealing ring holds the outer wall of the plug inner shell.

[0019] Preferably, a lower sealing ring B is provided on one end face of the plug housing, and a sealing gasket is provided on the other end face of the plug housing; a lower sealing ring C is provided on the end face of the plug inner shell on the same side as the end where the lower sealing ring B is located.

[0020] Preferably, in the inserted state, the inner ring surface of the sealing gasket adheres to the outer peripheral wall of the socket housing to form a seal.

[0021] Preferably, the inner wall of the socket housing is provided with an annular groove and a limiting ring A installed in the annular groove, and the socket valve stem is fixed on the limiting ring A.

[0022] Preferably, the elastic element A is a cylindrical spring, which is fitted onto the socket valve stem, with one end abutting against the valve core and the other end abutting against the bottom of the socket valve stem.

[0023] Preferably, the inner shell of the plug is provided with a support base, which includes a base and a protrusion vertically arranged on the base. The protrusion has a central cavity, and the base is provided with a liquid passage hole on the outer periphery of the protrusion. The lower part of the plug valve stem is inserted into the central cavity of the protrusion. The elastic element B is cylindrical and is fitted on the plug valve stem, with one end abutting against the lower end of the valve head B and the other end abutting against the base.

[0024] Preferably, the inner wall of the plug housing is provided with an annular groove and a limiting ring B installed in the annular groove; the support seat is located on the limiting ring B and is supported by the limiting ring B.

[0025] In this invention, the socket and plug are respectively installed on the liquid pipeline or cold plate. When the socket and plug are inserted, a liquid circuit is formed, allowing coolant to enter the flow channel cavity from the liquid pipeline or cold plate connected to the socket, and then flow into the liquid pipeline or cold plate connected to the plug. When leakage occurs, coolant enters the outside of the flow channel cavity. When the coolant accumulates to a certain volume, it simultaneously contacts the first and second conductive wires to complete the circuit, generating current and triggering a leakage alarm. This invention features high integration, easy disassembly, and high reusability, and can be used as a shelving product in various applications. Attached Figure Description

[0026] Figure 1 This is an exploded view of the socket in a liquid connector with leakage monitoring and collection functions proposed in this invention;

[0027] Figure 2 This is an exploded cross-sectional view of the socket in a liquid connector with leakage monitoring and collection functions proposed in this invention.

[0028] Figure 3 This is a schematic diagram of the installation of the socket in a liquid connector with leakage monitoring and collection functions proposed in this invention;

[0029] Figure 4 This is an exploded view of the plug in a liquid connector with leakage monitoring and collection functions proposed in this invention;

[0030] Figure 5 This is a cross-sectional view of the exploded view of the plug in a liquid connector with leakage monitoring and collection functions proposed in this invention.

[0031] Figure 6 This is an isometric view of the plug in a liquid connector with leakage monitoring and collection functions proposed in this invention.

[0032] Figure 7 This is a schematic diagram of the installation of the plug in a liquid connector with leakage monitoring and collection functions proposed in this invention;

[0033] Figure 8 This is a schematic diagram of the sensor assembly in a liquid connector with leakage monitoring and collection functions proposed in this invention;

[0034] Figure 9 This is a schematic diagram of the structure of a liquid connector with leakage monitoring and collection functions proposed in this invention. Detailed Implementation

[0035] Reference Figure 1-9 The present invention proposes a liquid connector with leakage detection and collection functions, comprising: a pair of sockets and plugs;

[0036] like Figure 1-3 As shown, the socket includes a socket housing (1), a valve core (2), a socket valve stem (3), and an elastic element A (4). The socket housing (1) has a through cavity, one end of which is the mounting end, and a limiting shoulder A is provided on the inner side of the port at the other end of the socket housing (1). The valve core (2) is axially movable inside the socket housing (1) and is supported by the elastic element A (4) against the limiting shoulder A. A sealing structure (5) is provided between the outer peripheral wall of the valve core (2) and the inner peripheral wall of the socket housing (1). The valve core (2) has a through central hole. The socket valve stem (3) is vertically installed inside the socket housing (1). A valve head A (301) is provided at the top of the socket valve stem (3). The valve head A (301) is located inside the central hole of the valve core (2) and forms a blockage to the central hole. When the valve core 2 moves axially to compress the elastic element A4, the central hole of the valve core 2 can be disengaged from the valve head A (301) and enter the open state.

[0037] like Figure 4-7 As shown, the plug includes a plug housing (6) with a through cavity, a plug inner housing (7) with a through cavity and coaxially disposed within the plug housing (6), a plug valve stem (8), an elastic element B (11), and a sensor assembly (9); a connector (10) is provided between the plug inner housing (7) and the plug housing (6) to connect the two, one end of the plug inner housing (7) is located inside the plug housing (6) and has a gap between it and the port of the plug housing (6); the plug valve stem (8) is vertically disposed inside the plug inner housing (7) and is supported by the elastic element B (11) so that it can move axially, the plug valve stem (8) has a valve head B (801), the valve head B (801) is located at the port of the plug inner housing (7) and forms a seal on the port. When the plug valve stem (8) moves axially to compress the elastic element B11, the port of the plug inner housing (7) can be disengaged from the valve head B (801) of the plug valve stem (8) and enter the open state.

[0038] Reference Figure 8 The sensor assembly (9) includes a first conductive wire (901) and a second conductive wire (902) vertically disposed between the inner shell (7) and the outer shell (6) of the plug. The first conductive wire (901) is located on one side of the second conductive wire (902). The ends of the first conductive wire (901) and the second conductive wire (902) have a height difference, and one end of both is located outside the outer shell (6) of the plug to form a terminal, so that the circuit between the first conductive wire (901) and the second conductive wire (902) is broken and there is no signal output.

[0039] Reference Figure 9In the working state, the plug and socket are inserted to make valve head A (301) dock with valve head B (801). One end of the plug inner shell (7) extends into the socket outer shell (1) to dock with valve core (2) and pushes valve core (2) to the state of separation from valve head A (301), so that valve core (2) and plug inner shell (7) are connected to form a flow channel cavity (a).

[0040] In use, the socket is installed on the cold plate with screws, ensuring the installation area is sealed. The plug is inserted into the socket, with one end of the plug installed on the cold plate with screws, ensuring that the installation area at that end is sealed. The other end of the plug is installed on another cold plate, ensuring that the installation area is sealed, thus connecting the two cold plates through the flow channel cavity a to form a liquid circuit. When leakage occurs, coolant enters the outside of the flow channel cavity. When the coolant accumulates to a certain volume, it simultaneously contacts the first conductive wire (901) and the second conductive wire (902) to make the circuit conductive, forming a current. Whether the circuit is conductive can be used to determine whether there is leakage, thereby achieving the purpose of leakage monitoring.

[0041] In the specific operation process, the sensor assembly (9) is connected to the host computer to monitor the current (or resistance) through the host computer. When the first conductive line (901) and the second conductive line (902) are connected, the host computer issues a leakage alarm.

[0042] In a further embodiment, the sensor assembly (9) further includes an insulating cylinder (903) made of insulating material, which is coaxially disposed between the plug inner shell (7) and the plug outer shell (6). A gap exists between the insulating cylinder (903) and the plug inner shell (7) to form a monitoring cavity (b). A first conductive wire (901) and a second conductive wire (902) are fixed to the inner wall of the plug inner shell (7). When leakage occurs, coolant enters the monitoring cavity (b). When the coolant accumulates to a certain volume, it simultaneously contacts the first conductive wire (901) and the second conductive wire (902) to make the circuit conductive, forming a current to trigger a leakage alarm.

[0043] To further improve the accuracy of leakage detection by sensor assembly 9, in this embodiment, the first conductive wire (901) and the second conductive wire (902) each include several vertically arranged conductive wires and connecting wires that connect the conductive wires in series. One end of the connecting wire is located outside the plug housing (6) to form a terminal. The conductive wires in the first conductive wire (901) and the conductive wires in the second conductive wire (902) are alternately arranged along the outer periphery of the plug inner housing (7), and there is a height difference between the ends of the conductive wires in the first conductive wire (901) and the conductive wires in the second conductive wire (902). When leakage occurs at any point, the conductive wire at that point will become conductive to form a circuit.

[0044] In addition, in order to ensure the reliability of the installation of the first conductive wire (901) and the second conductive wire (902) with the insulating cylinder (903), this embodiment provides a number of vertically extending and circumferentially spaced mounting grooves on the inner circumferential wall of the insulating cylinder (903). Each conductive wire in the first conductive wire (901) and each conductive wire in the second conductive wire (902) are alternately arranged in each mounting groove.

[0045] To facilitate disassembly and assembly while ensuring the insulation cylinder 903 is fixed within the plug inner shell 7, this embodiment provides an axially extending bayonet at one end of the insulation cylinder (903), which is then engaged with the connector (10) to circumferentially fix the insulation cylinder 903. A retaining ring (12) is provided above the other end of the insulation cylinder (903) to prevent axial movement of the insulation cylinder (903), thereby fixing the insulation cylinder 903 axially and thus securing it.

[0046] Furthermore, the side wall of the plug housing (6) is provided with a wire hole, through which the connecting wires of the first conductive wire (901) and the second conductive wire (902) are led out and an insulating seal is provided at the wire hole. Specifically: the connecting wires of the first conductive wire (901) and the second conductive wire (902) have a glass sintered body 19 inside the wire hole to form an insulating seal.

[0047] In order to improve the sealing performance inside the connector, this embodiment provides a valve stem sealing ring (18) fixed on the valve head A (301) at the junction of the valve head A (301) and the center hole, and a sealing structure (5) is provided at the junction of the valve core (2) and the limiting shoulder A.

[0048] Meanwhile, a limiting shoulder B is provided on the inner side of the port of the plug inner shell (7) located inside the plug outer shell (6); a limiting boss is provided on the outer periphery of the valve head B (801), and the limiting boss abuts against the limiting shoulder B, so that the limiting shoulder B and the elastic element B11 cooperate with each other to ensure that the plug valve stem 8 is fixed in the plug inner shell 7. In addition, a valve stem sealing ring B (20) fixed to the limiting boss is provided at the contact point between the limiting boss and the limiting shoulder B.

[0049] In a further embodiment, a lower sealing ring A (13) is provided on the end face of the mounting end of the socket housing (1). An inner sealing ring (17) is also provided on the inner side of the port at the other end of the socket housing (1), and in the plugged state, the inner sealing ring (17) holds the outer wall of the plug inner shell (7). The design of the lower sealing ring A (13) can ensure the sealing of the socket mounting surface without adding external parts, while the design of the inner sealing ring (17) forms a seal at the contact point between the socket housing (1) and the plug inner shell (7). When the internal seal of the connector fails, the seal of the mounting surface acts as a protection to prevent liquid leakage.

[0050] Similarly, in this embodiment, a lower sealing ring B (15) is provided on one end face of the plug housing (6), and a sealing gasket (14) is provided on the other end face of the plug housing (6); a lower sealing ring C (16) is provided on the end face of the plug inner shell (7) on the same side as the end where the lower sealing ring B is located, so that the design of the lower sealing ring C (16), the lower sealing ring B (15) and the sealing gasket (14) can ensure the sealing of the mounting surfaces at both ends of the plug during use without adding external parts.

[0051] In a further embodiment, in the mating state, the inner ring surface of the sealing gasket (14) is attached to the outer peripheral wall of the socket housing (1) to form a seal, and the inner ring surface of the sealing gasket (14) forms a seal at the socket housing 1.

[0052] To increase the ease of assembly and disassembly of the connector, in this embodiment, an annular groove is provided on the inner wall of the socket housing (1), and a limiting ring A (21) is installed in the annular groove. The socket valve stem (3) is fixed on the limiting ring A (21). The elastic element A (4) is a cylindrical spring and is fitted on the socket valve stem (3). One end of the spring abuts against the valve core (2), and the other end abuts against the bottom of the socket valve stem (3).

[0053] Similarly, the inner shell (7) of the plug is provided with a support seat (22). The support seat (22) includes a base and a protrusion vertically arranged on the base. The protrusion has a central cavity, and the base is provided with a liquid passage hole on the outer periphery of the protrusion. The lower part of the plug valve rod (8) is inserted into the central cavity of the protrusion. The elastic element B (11) is cylindrical and is fitted on the plug valve rod (8). One end of the elastic element abuts against the lower end of the valve head B (801), and the other end abuts against the base.

[0054] The inner wall of the plug inner shell (7) is provided with an annular groove and a limiting ring B (23) installed in the annular groove; the support seat (22) is located on the limiting ring B (23) and is supported by the limiting ring B (23).

[0055] As can be seen from the above, when using this invention, the socket and plug are respectively installed on the liquid pipeline or cold plate and inserted together to form a liquid circuit. This allows the coolant to enter the flow channel cavity a from the liquid pipeline or cold plate connected to the socket, and then flow into the liquid pipeline or cold plate connected to the plug. When leakage occurs (generally due to failure of internal sealing rings or coolant splashing during insertion or removal), the coolant enters the outside of the flow channel cavity. When the coolant accumulates to a certain volume, it simultaneously contacts the first conductive wire (901) and the second conductive wire (902) to make the circuit conductive, forming a current, and subsequently triggering a leakage alarm. This invention has high integration, is easy to disassemble, has a high reusability, and can be used as a shelving product in various applications.

[0056] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A liquid connector with leakage detection and collection functions, characterized in that, include: The sockets and plugs are installed in pairs, of which: The socket includes a socket housing (1), a valve core (2), a socket valve stem (3), and an elastic element A (4); the socket housing (1) has a through cavity, one end of which is the mounting end, and the other end has a limiting shoulder A on the inner side of the port; the valve core (2) is axially movable inside the socket housing (1) and is supported by the elastic element A (4) against the limiting shoulder A, and a sealing structure (5) is provided between the outer peripheral wall of the valve core (2) and the inner peripheral wall of the socket housing (1), and the valve core (2) has a through central hole; the socket valve stem (3) is vertically installed inside the socket housing (1), and a valve head A (301) is provided at the top of the socket valve stem (3), and the valve head A (301) is located in the central hole of the valve core (2) and forms a blockage to the central hole; The plug includes a plug housing (6) with a through cavity, a plug inner housing (7) with a through cavity and coaxially disposed within the plug housing (6), a plug valve stem (8), and an elastic element B (11) and a sensor assembly (9); the plug inner housing (7) is fixedly connected to the plug housing (6), and one end of the plug inner housing (7) is located inside the plug housing (6) and has a gap between it and the port of the plug housing (6); the plug valve stem (8) is vertically disposed inside the plug inner housing (7) and is supported by the elastic element B (11) so that it can move axially, the plug valve stem (8) It has a valve head B (801), which is located at the port of the plug inner shell (7) and forms a blockage on the port; the sensor assembly (9) includes a first conductive wire (901) and a second conductive wire (902) vertically disposed between the plug inner shell (7) and the plug outer shell (6), the first conductive wire (901) is located on one side of the second conductive wire (902), the ends of the first conductive wire (901) and the second conductive wire (902) have a height difference, and one end of both is located outside the plug outer shell (6) to form a power terminal; In the working state, the plug and socket are inserted to make valve head A (301) dock with valve head B (801). One end of the plug inner shell (7) extends into the socket outer shell (1) to dock with valve core (2) and pushes valve core (2) to the state of separation from valve head A (301), so that valve core (2) and plug inner shell (7) are connected to form a flow channel cavity (a).

2. The liquid connector with leakage detection and collection function according to claim 1, characterized in that, The sensor assembly (9) also includes an insulating cylinder (903) made of insulating material, which is coaxially disposed between the plug inner shell (7) and the plug outer shell (6). There is a gap between the insulating cylinder (903) and the plug inner shell (7) to form a monitoring cavity (b). The first conductive wire (901) and the second conductive wire (902) are respectively fixed on the inner wall of the insulating cylinder (903).

3. The liquid connector with leakage monitoring and collection function according to claim 2, characterized in that, The inner shell (7) of the plug is fixedly connected to the outer shell (6) of the plug through the connector (10), and the connector (10) is located between the inner shell (7) of the plug and the outer shell (6); one end of the insulating cylinder (903) is provided with an axially extending bayonet, which is locked on the connector (10); a retaining ring (12) is provided above the other end of the insulating cylinder (903) to prevent the axial movement of the insulating cylinder (903).

4. The liquid connector with leakage detection and collection function according to claim 2, characterized in that, The first conductive wire (901) and the second conductive wire (902) each include several vertically arranged conductive wires and connecting wires that connect the conductive wires in series. One end of the connecting wire is located outside the plug housing (6) to form a terminal. The conductive wires in the first conductive wire (901) and the conductive wires in the second conductive wire (902) are alternately arranged along the outer periphery of the plug inner housing (7). The ends of the conductive wires in the first conductive wire (901) and the conductive wires in the second conductive wire (902) have a height difference.

5. The liquid connector with leakage detection and collection function according to claim 4, characterized in that, The inner circumferential wall of the insulating cylinder (903) is provided with several vertically extending mounting grooves arranged with gaps along the circumference. Each conductive wire in the first conductive wire (901) and each conductive wire in the second conductive wire (902) are alternately arranged in each mounting groove.

6. The liquid connector with leakage detection and collection function according to claim 4, characterized in that, The plug housing (6) has a wire hole on its side wall. The connecting wires in the first conductive wire (901) and the second conductive wire (902) are led out through the wire hole and are provided with insulation seal at the wire hole.

7. The liquid connector with leakage detection and collection function according to claim 4, characterized in that, The connecting wires in the first conductive wire (901) and the second conductive wire (902) have a glass sintered body (19) inside the wire hole to form an insulating seal.

8. The liquid connector with leakage detection and collection function according to claim 1, characterized in that, A valve stem sealing ring (18) is fixed on the valve head A (301) at the junction of the valve head A (301) and the center hole; a sealing structure (5) is set at the junction of the valve core (2) and the limiting shoulder A.

9. The liquid connector with leakage detection and collection function according to claim 1, characterized in that, The inner shell of the plug (7) is provided with a limiting shoulder B on the inner side of the port at the inner end of the plug outer shell (6); the outer periphery of the valve head B (801) is provided with a limiting boss, which abuts against the limiting shoulder B.

10. The liquid connector with leakage detection and collection function according to claim 9, characterized in that, A valve stem sealing ring B (20) is provided at the contact point between the limiting boss and the limiting shoulder B, which is fixed to the limiting boss.

11. The liquid connector with leakage detection and collection function according to claim 1, characterized in that, The socket housing (1) has a lower sealing ring A (13) on the end face of the mounting end, and an inner sealing ring (17) is provided on the inner side of the port at the other end of the socket housing (1). When the socket is plugged in, the inner sealing ring (17) holds the outer wall of the plug inner shell (7).

12. The liquid connector with leakage detection and collection function according to claim 1, characterized in that, The end face of one end of the plug housing (6) is provided with a lower sealing ring B (15), and the end face of the other end of the plug housing (6) is provided with a sealing gasket (14); the end face of the plug inner shell (7) on the same side as the end where the lower sealing ring B is located is provided with a lower sealing ring C (16).

13. The liquid connector with leakage monitoring and collection function according to claim 12, characterized in that, In the mating state, the inner ring surface of the sealing gasket (14) is pressed against the outer peripheral wall of the socket housing (1) to form a seal.

14. The liquid connector with leakage monitoring and collection function according to claim 1, characterized in that, The inner wall of the socket housing (1) is provided with an annular groove and a limiting ring A (21) installed in the annular groove. The socket valve stem (3) is fixed on the limiting ring A (21).

15. The liquid connector with leakage detection and collection function according to claim 14, characterized in that, The elastic element A (4) is a cylindrical spring and is fitted onto the socket valve stem (3). One end of the spring abuts against the valve core (2), and the other end abuts against the bottom of the socket valve stem (3).

16. The liquid connector with leakage detection and collection function according to claim 1, characterized in that, The inner shell (7) of the plug is provided with a support seat (22). The support seat (22) includes a base and a protrusion vertically arranged on the base. The protrusion has a central cavity, and the base is provided with a liquid passage hole on the outer periphery of the protrusion. The lower part of the plug valve rod (8) is inserted into the central cavity of the protrusion. The elastic element B (11) is cylindrical and is fitted on the plug valve rod (8). One end of the elastic element abuts against the lower end of the valve head B (801), and the other end abuts against the base.

17. The liquid connector with leakage detection and collection function according to claim 16, characterized in that, The inner wall of the plug inner shell (7) is provided with an annular groove and a limiting ring B (23) installed in the annular groove; the support seat (22) is located on the limiting ring B (23) and is supported by the limiting ring B (23).

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