Quick connector with overflow valve function

Abstract

The invention relates to the technical field of valves, and discloses a quick connector with an overflow valve function, which comprises a connector used for connecting an air inlet end and an air outlet end and providing the overflow valve function; the butt joint assembly is arranged on one side of the connector, and sealing and quick detaching are achieved through multi-structure clamping; the control system is arranged in an inner cavity of the connector and used for being connected with the sensor to control the magnetic force of the electromagnet. The cut-off assembly is arranged on one side of the connector and controls the magnetic resistance between the electromagnet and the valve element by being powered on so as to control the medium flow; the cut-off assembly further comprises an assembly block. Through magnetic resistance adjustment between the electromagnet and the valve element, the flow of gas or liquid can be accurately controlled, dynamic adjustment of media in a system is achieved, the common lag and abrasion problems in traditional mechanical valve control are avoided, and adjustment is more flexible and efficient through accurate control of the electromagnet.

Description

Technical Field

[0001] The invention relates to the technical field of valves, in particular to a quick connector with a relief valve function. Background Art

[0002] The quick connector is a connection device specially designed for use in hydraulic systems. It not only enables quick connection and disconnection between hydraulic lines, but also integrates a relief valve function, thereby automatically releasing pressure when the system pressure exceeds the set value, protecting the safety of equipment and systems.

[0003] This type of quick connector is usually used in situations where frequent connection and disconnection of hydraulic lines are required, and where high safety requirements are placed on the system. The function of the relief valve can prevent excessive hydraulic pressure from causing damage to the system, which is especially important in some high-pressure applications or situations where precise pressure control is required.

[0004] In existing pneumatic and hydraulic systems, common flow control and pressure regulation mainly rely on mechanical valves or traditional solenoid valves, and these control methods have many limitations in application. Traditional mechanical valves control flow and pressure through manual operation or spring devices. Although the structure is simple, the adjustment accuracy is low and the dynamic response speed is slow. It cannot meet the demand for high-precision adjustment. In addition, mechanical wear during frequent use causes unstable system operation, which increases maintenance costs. On the other hand, although traditional solenoid valves can achieve automatic control, they usually only have switching functions and cannot fine-tune flow and pressure. Their adjustment range is limited. In addition, the overheating problem caused by electromagnets during long-term operation has not been effectively solved, which often leads to a decline in system performance. Especially in high-pressure or high-temperature environments, the stability and service life of traditional solenoid valves are seriously affected.

[0005] In addition, although quick connector technology can provide convenient connection and disassembly functions in certain application scenarios, the existing quick connector designs generally rely on mechanical snap-on or threaded connections, which are cumbersome to operate and are prone to leakage risks when the connection is not firm. Especially in the transmission of high-pressure and high-flow media, the sealing effect is poor and the stability is insufficient, which further affects the safety and reliability of the system. Existing quick connectors also lack effective guidance and alignment functions, and often lead to docking errors due to improper installation. Especially in complex working conditions, the existing quick connectors are difficult to provide efficient quick connection and precise docking, which affects the operating efficiency of the system.

[0006] To this end, those skilled in the art provide a quick connector with a relief valve function to solve the problems raised in the above background technology. Summary of the invention

[0007] In view of the deficiencies of the prior art, the present invention provides a quick connector with a relief valve function, which solves the problems of high wear and cumbersome operation in the prior art.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: A quick connector with a relief valve function, comprising:

[0009] A connector, used to connect the air inlet and outlet, and provide a relief valve function;

[0010] The docking assembly is arranged on one side of the joint and realizes sealed quick disassembly through multi-structure snap-in;

[0011] A control system, which is arranged in the inner cavity of the joint and is used to connect a sensor to control the magnetic force of the electromagnet;

[0012] The shutoff assembly is arranged on one side of the joint and controls the magnetic resistance between the electromagnet and the valve core by energizing to control the flow of the medium;

[0013] The shut-off component also includes an assembly block, an electromagnet is installed in the inner cavity of the assembly block, and a plurality of heat dissipation copper plates are arranged on one side of the assembly block for dissipating heat when the electromagnet is energized. A plurality of track grooves are arranged in the inner cavity of the joint for maintaining the piston in the inner cavity of the joint in a vertical motion state with the electromagnet, and a valve core is installed on one side of the piston.

[0014] Preferably, isolation plates are provided on both sides of the inner cavity of the connector, which are used to shield the magnetic force so that the magnetic force generated by the electromagnet is applied vertically to the top of the valve core.

[0015] Preferably, the control system includes a PLC controller, and the PLC controller is electrically connected to a plurality of flow sensors respectively. A pressure sensor is installed on one side of the piston, and the pressure sensor is connected to the PLC controller via a network.

[0016] Preferably, the shut-off assembly also includes a snap-in ring, which is installed in the inner cavity of the joint and connected to the feed pipe arranged in the inner cavity of the joint. The inner cavity of the snap-in ring is installed with a plurality of locking components for automatically locking the snap-in ring and the quick connector after they are vertically connected. The inner cavity of the snap-in ring is provided with a plurality of guide plates, whose shape matches the magnet plate arranged on the outer wall of the quick connector, for completing magnetic pre-docking by adsorbing the guide plate by the magnet plate during connection.

[0017] Preferably, a plurality of silicone strips are installed on the outer wall of the quick connector, a second interface is fixed to the bottom of the quick connector, and its inner cavity is hollow and communicates with the quick connector. A plurality of L-shaped grooves are provided on the outer wall of the quick connector, and the inner cavity of the L-shaped groove is also provided with an embedded groove for engaging with the locking assembly.

[0018] Preferably, the locking component includes a positioning block, which is installed in the inner cavity of the locking ring. A spring is provided on the inner wall of the positioning block, and one side of the spring is connected to the limit block, which is used to connect the pull rod and use the spring stress to push the pull rod to slide in the L-shaped slide groove and the inner cavity of the embedded groove.

[0019] Preferably, a first interface is installed on one side of the connector, the inner cavity of which is hollow and connected to the inner cavity flow channel of the connector.

[0020] Preferably, the top inner ring and the outer ring of the quick connector are respectively installed with a first rubber ring and a second rubber ring for maintaining the gap seal after connection.

[0021] Preferably, the control system further comprises a control calculation module, and the control calculation module is equipped with a flow control algorithm and a pressure control algorithm.

[0022] Preferably, the flow control algorithm and pressure control algorithm calculation formula are:

[0023] Flow control algorithm:

[0024]

[0025] Among them, u 流量 (t): flow control output signal, regulating the current of the electromagnet (4);

[0026] e f (t) = r f (t)-y f (t): flow error, r f (t) is the target flow, y f (t) is the actual flow value of the flow sensor (12);

[0027] K p-f ,K i-f ,K d-f : Proportional, integral and differential gains of flow control;

[0028] Pressure control algorithm:

[0029]

[0030] Among them, u 压力 (t): pressure control output signal, regulating the current of the electromagnet (4);

[0031] e p (t) = r p (t)-y p (t): pressure error, r p (t) is the target pressure, y p (t) is the actual pressure value of the pressure sensor (11);

[0032] K p_p ,K i_p ,K d_p : Proportional, integral and differential gains of pressure control.

[0033] Working principle: During use, the device is first connected to the connector through a quick connector. The outer wall of the quick connector is provided with a plurality of silicone strips, which play a sealing and buffering role when the quick connector is rotated. At the same time, the quick connector is rotated so that one side of the pull rod can be aligned according to the shape of the inner cavity of the L-shaped slide. When the pull rod enters the inner cavity of the L-shaped slide, the stress of the spring pushes the pull rod to slide in smoothly and complete the clamping. The setting of the magnetic plate and the guide plate ensures that during the connection process, the pull rod can be accurately aligned and inserted into the L-shaped slide, ensuring that the entire docking process is fast and stable.

[0034] After the connection is completed, the quick connector is automatically locked by the snap ring to ensure the sealing of the gas flow channel and the firmness of the connection. After the gas enters the inner cavity of the connector from the air inlet end, the control system adjusts the magnetic force of the electromagnet to control the movement of the valve core. The valve core is connected to the piston, and the piston moves vertically in the track groove in the connector, thereby accurately controlling the amount of airflow.

[0035] The PLC controller obtains real-time data through flow sensors and pressure sensors, and calculates the difference between flow and pressure and the set target through control algorithms, adjusts the current of the electromagnet, and changes the magnetic force to control the opening and closing of the valve core, thereby achieving precise control of gas flow and pressure. When the system pressure reaches the set value, the relief valve function starts to automatically release excess gas pressure to ensure the safe operation of the system. When the electromagnet is energized, the heat generated by it is dissipated through the heat dissipation copper plate to ensure the continued normal operation of the electromagnet.

[0036] When the connection needs to be released, the operator only needs to release the lock in the snap ring, pull the positioning block, and drive the pull rod to slide out of the L-shaped slide groove and the embedded groove. The quick connector can quickly detach from the connector and terminate the sealing state by releasing the rubber sealing ring and.

[0037] The present invention provides a quick connector with a relief valve function. It has the following beneficial effects:

[0038] 1. The present invention can accurately control the flow of gas or liquid by adjusting the magnetic resistance between the electromagnet and the valve core, realize dynamic adjustment of the medium in the system, and avoid the lag and wear problems common in traditional mechanical valve control. The precise control of the electromagnet not only makes the adjustment more flexible and efficient, but also through the closed-loop feedback mechanism of the PLC control system, it can respond to changes in flow and pressure in real time to ensure that the system always operates in the optimal state. This design is particularly suitable for application scenarios with high precision requirements, and significantly improves the adjustment accuracy and response speed of the system during operation.

[0039] 2. The present invention realizes quick connection and automatic locking through the snap ring and the locking assembly. This design makes the connection process simpler and more reliable, greatly reducing the operation time and labor costs. Especially in industrial applications with high-frequency connection and disconnection, the matching design of the quick connector's silicone strip, L-shaped slide groove and embedded groove can ensure that each connection can achieve a reliable seal. In addition, the guide plate in the snap ring and the magnet plate on the outer wall of the quick connector are pre-connected by magnetic force, which further improves the accuracy and convenience of the connection and ensures that a stable connection can still be achieved under complex working conditions.

[0040] 3. The present invention effectively shields the external magnetic interference generated by the electromagnet by installing an isolation plate in the joint, ensuring that the magnetic force only acts vertically on the valve core, thereby improving the working efficiency of the electromagnet and the movement accuracy of the valve core, and avoiding control errors caused by magnetic leakage. At the same time, the use of the isolation plate also increases the anti-interference ability of the system, ensuring that the system can still maintain stable operation in a complex electromagnetic environment. This design can greatly improve the working life of the electromagnet and the overall reliability of the system, ensuring the safety and long-term effectiveness of its application in high-precision pneumatic and hydraulic control systems.

[0041] 4. The heat dissipation copper plate design of the present invention can effectively solve the heat dissipation problem of the electromagnet when it is powered on for a long time. The heat dissipation copper plate is installed in the assembly block, which can quickly dissipate the heat generated by the electromagnet when it is working, avoiding performance degradation or system failure caused by overheating of the electromagnet. This heat dissipation design can not only improve the working stability of the electromagnet, but also extend its service life, so that the entire system can maintain an efficient and stable operating state under long-term high-load operation. It is particularly suitable for high-temperature and high-pressure industrial application scenarios, and greatly enhances the reliability and durability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A perspective view of the present invention;

[0043] Figure 2 It is a schematic diagram of the cross-sectional structure of the joint of the present invention;

[0044] Figure 3 It is an exploded schematic diagram of the joint structure of the present invention;

[0045] Figure 4 This is a schematic diagram of the inner cavity structure of the clamping ring of the present invention when viewed from above;

[0046] Figure 5 It is a schematic diagram of the structure of the magnet plate of the present invention;

[0047] Figure 6 It is a schematic diagram of the cross-sectional structure of the positioning block of the present invention.

[0048] Among them, 1. connector; 2. first interface; 3. assembly block; 4. electromagnet; 5. heat dissipation copper plate; 6. track groove; 7. isolation plate; 8. piston; 9. valve core; 10. PLC controller; 11. pressure sensor; 12. flow sensor; 13. feed pipe; 14. snap ring; 15. guide plate; 16. positioning block; 17. pull rod; 18. limit block; 19. spring; 20. quick connector; 21. second interface; 22. silicone strip; 23. L-shaped slide groove; 24. embedded groove; 25. magnet plate; 26. first rubber ring; 27. second rubber ring. DETAILED DESCRIPTION

[0049] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] An embodiment of the present invention provides a quick connector with a relief valve function, comprising:

[0051] Please see attached Figure 1 -Attached Figure 2 , connector 1 is used to connect the air inlet end and the air outlet end and provide a relief valve function; a first interface 2 is installed on one side of the connector 1, and its inner cavity is hollow and connected to the inner cavity flow channel of the connector 1.

[0052] Specifically, the connector 1 is used to connect the air inlet and the air outlet in the system, which can effectively realize the circulation of the medium. At the same time, it has the function of a relief valve to ensure that when the system pressure is too high, the excessive pressure is automatically released, thereby protecting the safety of the equipment and pipelines. The design of the connector fully considers the circulation requirements of gas or liquid media. The inner cavity is designed as a hollow structure with a flow channel, so that the fluid can pass smoothly and reduce pressure loss, ensuring the efficiency and stability of the system operation. In addition, a first interface 2 is installed on one side of the connector 1, which is also designed as a hollow structure and is seamlessly connected to the inner cavity flow channel of the connector 1, ensuring the smooth transmission of the medium from the air inlet to the air outlet. The hollow structure not only enhances the transmission efficiency of the fluid, but also reduces the flow resistance and ensures the flow balance in the system. At the connection between the connector 1 and the first interface 2, a precise sealing design is adopted to ensure that the entire system can still maintain a high degree of sealing under high pressure or high flow conditions to prevent leakage problems. Through this design, the connector 1 not only realizes the efficient flow of gas or liquid, but also has a reliable overflow valve function, ensuring that when the pressure in the system reaches the preset critical value, the excess pressure can be discharged in time, thereby avoiding failure or damage to the system due to overpressure. The hollow design of the first interface 2 further optimizes the flow channel structure of the entire system, making it suitable for various complex working conditions. In particular, in application scenarios that require precise control of flow and pressure, the combination of connector 1 and first interface 2 can play a key role.

[0053] Please see attached Figure 3 -Attached Figure 5 , docking assembly, which is arranged on one side of the joint 1, and realizes sealed quick release through multi-structure clamping; the outer wall of the quick joint 20 is installed with multiple silicone strips 22, and the bottom of the quick joint 20 is fixed with a second interface 21, whose inner cavity is hollow and communicates with the quick joint 20, and the outer wall of the quick joint 20 is provided with multiple L-shaped grooves 23, and the inner cavity of the L-shaped groove 23 is also provided with an embedded groove 24 for clamping with the lock assembly. The top inner ring and outer ring of the quick joint 20 are respectively installed with a first rubber ring 26 and a second rubber ring 27 for keeping the gap sealed after connection.

[0054] Specifically, the docking assembly is arranged on one side of the connector 1, and the sealing and quick disassembly functions are realized through the design of multi-structure card connection, ensuring reliability and efficient operation under various working conditions. As the core part of the docking assembly, the quick connector 20 has a plurality of silicone strips 22 installed on its outer wall. These silicone strips 22 not only provide excellent sealing performance, but also play a role of shock absorption and buffering during the rotation and insertion of the quick connector 20, ensuring a smooth docking process. A second interface 21 is fixed to the bottom of the quick connector 20. The inner cavity of the second interface 21 is designed to be hollow and communicates with the inner cavity of the quick connector 20, ensuring that the medium can flow smoothly from one end to the other end after the docking is completed, maintaining the continuity and stability of the fluid transmission. In addition, the outer wall of the quick connector 20 is provided with a plurality of L-shaped grooves 23. The design of these grooves is very functional, so that during operation, the quick connector 20 can be accurately docked with the locking assembly in the system through a rotating action. The inner cavity of the L-shaped slide groove 23 is further provided with an embedded groove 24. The existence of the embedded groove 24 enables the locking assembly to be firmly engaged with the quick connector 20 to achieve precise locking, preventing the quick connector 20 from accidentally disengaging under high pressure or high flow conditions, thereby ensuring the safe and stable operation of the system.

[0055] The top inner ring and the outer ring of the quick connector 20 are respectively installed with a first rubber ring 26 and a second rubber ring 27, which play an important sealing role in the connection process. They are in close contact with the matching interface through elastic deformation, thereby forming a gap seal and effectively preventing medium leakage. Especially in the case of high-pressure transmission of gas or liquid, this design greatly enhances the sealing performance of the system and avoids any possible risk of leakage or seepage. In addition, the installation position of the rubber ring is precisely designed to maintain a stable sealing effect after the connection is completed, while ensuring the durability of the connection point in long-term use.

[0056] Please see attached Figure 6 The locking component includes a positioning block 16, which is installed in the inner cavity of the snap ring 14. A spring 19 is provided on the inner wall of the positioning block 16. One side of the spring 19 is connected to the limit block 18, which is used to connect the pull rod 17 and use the stress of the spring 19 to push the pull rod 17 to slide in the inner cavity of the L-shaped slide groove 23 and the embedded groove 24.

[0057] Specifically, the locking component includes a positioning block 16, which is installed in the inner cavity of the snap ring 14 to play a fixing and guiding role. The inner wall of the positioning block 16 is provided with a spring 19, and one side of the spring 19 is connected to the limit block 18. This design enables the spring 19 to provide power to the pull rod 17 through its own stress, so that it can slide in the inner cavity of the L-shaped slide groove 23 and the embedded groove 24. The rebound force of the spring 19 pushes the pull rod 17 to move smoothly. During the docking process, the pull rod 17 is guided to the correct position of the slide groove and finally locked. Through this structure, the locking component can ensure that the quick connector 20 is automatically locked after being inserted into the connector 1, while ensuring the stability and sealing of the connection, and avoiding loosening or detachment due to external force or vibration.

[0058] Please see attached Figure 2 , a control system is arranged in the inner cavity of the joint 1, and is used to connect the sensor to control the magnetic force of the electromagnet 4; the control system includes a PLC controller 10, which is electrically connected to a plurality of flow sensors 12, and a pressure sensor 11 is installed on one side of the piston 8, and the pressure sensor 11 is connected to the PLC controller 10 through a network. The flow control algorithm and the pressure control algorithm are calculated as follows:

[0059] Flow control algorithm:

[0060]

[0061] Among them, u 流量 (t): flow control output signal, regulating the current of the electromagnet (4);

[0062] e f (t) = r f (t)-y f (t): flow error, r f (t) is the target flow, y f (t) is the actual flow value of the flow sensor (12);

[0063] K p-f ,K i-f ,K d-f : Proportional, integral and differential gains of flow control;

[0064] Pressure control algorithm:

[0065]

[0066] Among them, u 压力 (t): pressure control output signal, regulating the current of the electromagnet (4);

[0067] e p (t) = r p (t)-yp (t): pressure error, r p (t) is the target pressure, y p (t) is the actual pressure value of the pressure sensor (11);

[0068] K p_p ,K i_p ,K d_p : Proportional, integral and differential gains of pressure control.

[0069] Specifically, the core of the control system is a PLC controller 10, which is electrically connected to a plurality of flow sensors 12 for real-time monitoring of the gas flow of the system. A pressure sensor 11 is installed on one side of the piston 8, which is connected to the PLC controller 10 through a network and can monitor the real-time pressure data of the system. The control system receives data from the flow sensor 12 and the pressure sensor 11 through the PLC controller 10, processes the data through a preset control algorithm, adjusts the current of the electromagnet 4, and then adjusts the magnetic force to control the movement of the valve core 9, thereby achieving precise control of the gas flow and pressure.

[0070] Please see attached Figure 1 -Attached Figure 3 , a flow cut-off component, which is arranged on one side of the connector 1, controls the magnetic resistance between the electromagnet 4 and the valve core 9 by powering on to control the flow of the medium;

[0071] The interception assembly also includes an assembly block 3, an electromagnet 4 is installed in the inner cavity of the assembly block 3, and a plurality of heat dissipation copper plates 5 are arranged on one side of the assembly block 3 for dissipating heat when the electromagnet 4 is energized. A plurality of track grooves 6 are provided in the inner cavity of the joint 1 for maintaining the piston 8 in the inner cavity of the joint 1 in a vertical motion state with the electromagnet 4, and a valve core 9 is installed on one side of the piston 8. Isolation plates 7 are arranged on both sides of the inner cavity of the joint 1 for shielding the magnetic force so that the magnetic force generated by the electromagnet 4 is vertically applied to the top of the valve core 9.

[0072] Specifically, during operation, the electromagnet 4 generates magnetic force by energizing, and the magnetic force adjusts the movement of the piston 8 through the magnetic resistance effect with the valve core 9, thereby realizing the opening and closing of the valve core 9 and controlling the flow of the medium. The interception component also includes an assembly block 3, in which the electromagnet 4 is fixedly installed in the inner cavity of the assembly block 3 to ensure the stability of the electromagnet 4 during operation. In order to prevent the electromagnet 4 from overheating when energized, a plurality of heat dissipation copper plates 5 are arranged on one side of the assembly block 3, which can effectively dissipate the heat generated by the electromagnet 4 during operation, and ensure the long-term reliable operation of the system.

[0073] The inner cavity of the joint 1 is designed with multiple track grooves 6, which are used to guide the piston 8 to move smoothly in the vertical direction and are consistent with the magnetic force direction of the electromagnet 4, ensuring that the movement of the piston 8 can be accurately controlled, thereby effectively adjusting the position of the valve core 9. A valve core 9 is installed on one side of the piston 8. The valve core 9 is responsible for directly controlling the flow of the medium. When the magnetic force generated by the electromagnet 4 acts on the valve core 9, the valve core 9 moves accordingly to achieve flow regulation.

[0074] In order to improve the effective utilization of the magnetic force of the electromagnet 4, isolation plates 7 are installed on both sides of the inner cavity of the connector 1. The isolation plates 7 are used to shield unnecessary magnetic field interference and ensure that the magnetic force generated by the electromagnet 4 can be concentrated on the top of the valve core 9. This design not only improves the magnetic efficiency of the system, but also ensures the accuracy of control and prevents the leakage or interference of the magnetic force from affecting the movement of the valve core 9.

[0075] Please see attached Figure 4 -Attached Figure 5 The shut-off assembly also includes a snap ring 14, which is installed in the inner cavity of the connector 1 and connected to the feed pipe 13 provided in the inner cavity of the connector 1. The inner cavity of the snap ring 14 is equipped with a plurality of locking components for automatically locking the snap ring 14 and the quick connector 20 after they are vertically connected. The inner cavity of the snap ring 14 is provided with a plurality of guide plates 15, whose shape matches the magnet plate 25 provided on the outer wall of the quick connector 20, and is used to complete magnetic pre-docking by adsorbing the guide plate 15 by the magnet plate 25 during connection.

[0076] Specifically, the shutoff assembly also includes a snap ring 14, which is installed in the inner cavity of the connector 1 and connected to the feed pipe 13 provided in the inner cavity of the connector 1 to ensure smooth flow of the medium in the system. The snap ring 14 is not only designed to connect the feed pipe 13, but also has the functions of quick connection and automatic locking. A plurality of locking components are installed in the inner cavity of the snap ring 14, and the function of these locking components is to automatically lock the snap ring 14 and the quick connector 20 after the snap ring 14 is vertically connected, thereby ensuring the firmness of the connection and the sealing of the system.

[0077] In order to ensure the accuracy and simplicity of the connection process, the inner cavity of the snap ring 14 is also designed with multiple guide plates 15. The shapes of these guide plates 15 are precisely designed to match the magnetic plates 25 set on the outer wall of the quick connector 20. When the quick connector 20 is connected to the snap ring 14, the magnetic plate 25 is adsorbed onto the guide plate 15 by magnetic force to complete the magnetic pre-docking. This design not only simplifies the connection operation, but also ensures that during the docking process, the quick connector 20 and the snap ring 14 can be automatically aligned and firmly locked, thereby improving the efficiency and reliability of docking.

[0078] Through the interaction of the snap ring 14, the locking component, the guide plate 15 and the magnetic plate 25, the interception assembly can achieve fluid control while providing a convenient operating experience during the connection and removal of the quick connector 20. Especially under complex working conditions, the magnetic pre-docking design can ensure the docking accuracy between the connectors 1, reduce the connection problems caused by human operation errors, and thus improve the stability and operating efficiency of the system.

[0079] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick connector with overflow valve function, characterized in that: include: A connector (1) is used to connect the air inlet end and the air outlet end and provide a relief valve function; A docking assembly, which is arranged on one side of the joint (1) and realizes sealed quick disassembly through multi-structure snap-in connection; A control system, which is arranged in the inner cavity of the connector (1) and is used to connect a sensor to control the magnetic force of the electromagnet (4); A flow cut-off assembly is arranged on one side of the joint (1) and controls the magnetic resistance between the electromagnet (4) and the valve core (9) by energizing to control the flow of the medium; The shutoff assembly also includes an assembly block (3), an electromagnet (4) is installed in the inner cavity of the assembly block (3), a plurality of heat dissipation copper plates (5) are arranged on one side of the assembly block (3) for dissipating heat when the electromagnet (4) is energized, a plurality of track grooves (6) are arranged in the inner cavity of the joint (1) for maintaining a piston (8) in a vertical motion state with the electromagnet (4) in the inner cavity of the joint (1), and a valve core (9) is installed on one side of the piston (8).

2. A quick connector with overflow valve function according to claim 1, characterized in that: Isolation plates (7) are provided on both sides of the inner cavity of the joint (1) for shielding the magnetic force so that the magnetic force generated by the electromagnet (4) is applied vertically to the top of the valve core (9).

3. A quick connector with overflow valve function according to claim 1, characterized in that: The control system comprises a PLC controller (10), the PLC controller (10) being electrically connected to a plurality of flow sensors (12), a pressure sensor (11) being installed on one side of the piston (8), and the pressure sensor (11) being connected to the PLC controller (10) via a network.

4. A quick connector with overflow valve function according to claim 1, characterized in that: The shut-off assembly further comprises a snap ring (14), the snap ring (14) being mounted in the inner cavity of the connector (1) and connected to a feed pipe (13) arranged in the inner cavity of the connector (1); a plurality of locking components being mounted in the inner cavity of the snap ring (14) for automatically locking the snap ring (14) and the quick connector (20) after the snap ring (14) and the quick connector (20) are vertically connected; a plurality of guide plates (15) being arranged in the inner cavity of the snap ring (14), the shape of which matches that of a magnet plate (25) arranged on the outer wall of the quick connector (20), for completing magnetic pre-docking by adsorbing the magnet plate (25) on the guide plate (15) during connection.

5. A quick connector with overflow valve function according to claim 4, characterized in that: The outer wall of the quick connector (20) is provided with a plurality of silicone strips (22), the bottom of the quick connector (20) is fixed with a second interface (21), the inner cavity of which is hollow and communicates with the quick connector (20), the outer wall of the quick connector (20) is provided with a plurality of L-shaped slide grooves (23), and the inner cavity of the L-shaped slide grooves (23) is also provided with an embedded groove (24) for engaging with the locking assembly.

6. A quick connector with overflow valve function according to claim 4, characterized in that: The locking component includes a positioning block (16), the positioning block (16) is installed in the inner cavity of the locking ring (14), and the inner wall of the positioning block (16) is provided with a spring (19), one side of the spring (19) is connected to the limit block (18), and is used to connect the pull rod (17) and use the stress of the spring (19) to push the pull rod (17) to slide in the inner cavity of the L-shaped slide groove (23) and the embedded groove (24).

7. A quick connector with overflow valve function according to claim 1, characterized in that: A first interface (2) is installed on one side of the connector (1), the inner cavity of which is hollow and connected to the inner cavity flow channel of the connector (1).

8. The quick connector with overflow valve function according to claim 4, characterized in that: The top inner ring and the outer ring of the quick connector (20) are respectively provided with a first rubber ring (26) and a second rubber ring (27) for maintaining the gap seal after connection.

9. The quick connector with overflow valve function according to claim 1, characterized in that: The control system further comprises a control calculation module, and the control calculation module is equipped with a flow control algorithm and a pressure control algorithm.

10. A quick connector with overflow valve function according to claim 9, characterized in that: The flow control algorithm and pressure control algorithm calculation formula are: Flow control algorithm: Among them, u 流量 (t): flow control output signal, regulating the current of the electromagnet (4); e f (t) = r f (t)-y f (t): flow error, r f (t) is the target flow, y f (t) is the actual flow value of the flow sensor (12); K p-f ,K i-f ,K d-f : Proportional, integral and differential gains of flow control; Pressure control algorithm: Among them, u 压力 (t): pressure control output signal, regulating the current of the electromagnet (4); e p (t) = r p (t)-y p (t): pressure error, r p (t) is the target pressure, y p (t) is the actual pressure value of the pressure sensor (11); K p_p ,K i_p ,K d_p : Proportional, integral and differential gains of pressure control.

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