Double-liquid-path combined connector

Abstract

The invention relates to a fluid medium connecting device, in particular to a double-liquid-path combined connector which comprises a fixed end and a movable end, the fixed end is used for being connected to a working position, the movable end is suitable for being connected with or detached from the fixed end, and the fixed end comprises a first connecting plate and at least two fixed end liquid path joints. The moving end comprises a second connecting plate, at least two moving end liquid path joints and a ball lock, when the moving end is connected with the fixed end, the moving end liquid path joints and the fixed end liquid path joints are in one-to-one butt joint communication, a ball lock hole is formed in the middle of the first connecting plate, and the two fixed end liquid path joints are symmetrically arranged on the two sides of the ball lock hole; the ball lock comprises a lock cylinder, the two moving end liquid path connectors are symmetrically arranged on the two sides of the ball lock, and the lock cylinder is suitable for moving relative to the second connecting plate. According to the connector, the requirement for multi-path medium conveying can be met through one set of connector, the number of matched products is small, the purchase cost is low, and the operation efficiency is high.

Description

Technical Field

[0001] The present invention relates to a fluid medium connection device, and particularly to a dual-fluid path combined connector. Background Art

[0002] Most existing connector products adopt a single-fluid path medium channel and are equipped with corresponding locking and separating mechanisms to convey the medium by connecting various temporary fluid paths. When two or more fluid paths need to be conveyed, it is achieved by increasing the number of products. As the number of products increases, the procurement cost, connection time, withdrawal time, etc. increase accordingly, and the economy and operability become worse. Especially in scenarios with high requirements for separation reliability (such as the temperature control connector for the fairing), as the number of products and the locking and separating mechanisms increase, the overall separation reliability will be significantly reduced. Therefore, in order to meet the requirements of multi-fluid path medium conveyance, a locking and separating mechanism with higher reliability is needed to comprehensively improve the economy, operability, and reliability of the connector. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a dual-fluid path combined connector that can meet the requirements of multi-fluid path medium conveyance through a set of connectors, with fewer supporting products, lower procurement costs, and higher operation efficiency.

[0004] To solve the above technical problem, the present application provides the following technical solutions:

[0005] A dual-fluid path combined connector of the present invention includes a fixed end and a moving end. The fixed end is used to be connected to the working position, and the moving end is adapted to be connected to or detached from the fixed end. The fixed end includes at least two fixed-end fluid path connectors, and the moving end includes at least two moving-end fluid path connectors. When the moving end is connected to the fixed end, the moving-end fluid path connectors are in one-to-one butt joint and communication with the fixed-end fluid path connectors.

[0006] Further, the fixed end further includes a first connecting plate, a ball lock hole is provided in the middle of the first connecting plate, and all the fixed-end fluid path connectors are connected to the first connecting plate. The fixed-end fluid path connectors are symmetrically arranged on both sides of the ball lock hole.

[0007] The moving end further includes a second connecting plate and a ball lock. The ball lock includes a lock core. The ball lock is connected to the second connecting plate. All the moving-end fluid path connectors are connected to the second connecting plate. The moving-end fluid path connectors are symmetrically arranged on both sides of the ball lock. The lock core is adapted to move relative to the second connecting plate to extend into or retract from the ball lock hole.

[0008] Further, a receiving groove is provided on the inner wall of the ball lock hole.

[0009] The ball lock further includes a ball lock body, a lock core spring, a piston rod, a piston rod driving member, a locking ball, a loose sleeve, a loose sleeve spring, a loose sleeve limiting device, and a sleeve. The axial direction of the ball lock body is perpendicular to the plane where the second connecting plate is located. The inner cavity of the ball lock body is divided into a first accommodating cavity and a second accommodating cavity by a first inner wall boss. A first mounting hole is provided on the side wall of the ball lock body, and the first mounting hole is provided at one end of the ball lock body close to the second connecting plate. A plurality of the locking balls are all arranged in the first mounting hole, and the plurality of the locking balls are all distributed along the circumferential direction of the ball lock body. The lock core is arranged in the inner cavity of the ball lock body. One end of the lock core is located in the first accommodating cavity, and the other end of the lock core passes through the first inner wall boss and enters the second accommodating cavity. A seal is provided between the lock core and the first inner wall boss. The piston rod is connected to one end of the lock core located in the second accommodating cavity. The piston rod is partially located in the second accommodating cavity, and the piston rod is coaxially arranged with the lock core. The piston rod driving member is used to drive the piston rod to move axially. On the outer wall of the part of the lock core located inside the first accommodating cavity, a first radial boss and a second radial boss are provided. The first radial boss is close to the second connecting plate, and the second radial boss is far from the second connecting plate. The first radial boss includes a conical frustum part and a boss part with a concave arc surface. The lock core spring is sleeved on the lock core, and the lock core spring is located between the second radial boss and the ball lock body. The loose sleeve limiting device is arranged on the outer wall of the ball lock body. The loose sleeve and the loose sleeve spring are both sleeved outside the ball lock body. The sleeve is sleeved outside the loose sleeve and the ball lock body. The loose sleeve spring is located between the end of the loose sleeve and the end of the sleeve. The loose sleeve is adapted to axially move relative to the ball lock body. One end of the sleeve is fixedly connected to the second connecting plate, and the other end of the sleeve is fixed to the ball lock body. When the fixed end and the moving end are in the unlocked state, the top of the locking ball is recessed into the first mounting hole, the bottom of the locking ball abuts against the conical frustum part of the first radial boss, the top of the locking ball is limited by the loose sleeve, and the inner side end of the loose sleeve abuts against the loose sleeve limiting device. When the fixed end and the moving end are in the locked state, the top of the locking ball is located in the receiving groove, the bottom of the locking ball is located in the concave arc part of the first radial boss, and the inner side end of the loose sleeve is far from the loose sleeve limiting device.

[0010] Further, a second mounting hole is further provided on the side wall of the ball lock body. The second mounting hole is located inside the first mounting hole. The loose sleeve limiting device is a plurality of limiting balls arranged in the second mounting hole. A plurality of the limiting balls all protrude from the outer wall of the ball lock body, and the plurality of the limiting balls are all distributed along the circumferential direction of the ball lock body.

[0011] Further, a plurality of the piston rod driving members are provided.

[0012] Further, the piston rod driving member includes a first gas supply joint, the piston rod includes a connecting end connected to the lock core, the outer wall of the connecting end is sealed with the inner wall of the second accommodation cavity, a first air inlet hole is provided on the side wall of the ball lock body, when the fixed end and the moving end are in a locked state, a first gap is left between the end of the connecting end and the first inner wall boss, the first air inlet hole communicates with the first gap, and the first gas supply joint is connected to the first air inlet hole.

[0013] Further, it further includes a second gas supply joint, a pull rod cylinder, and a pull rod. The inner wall of the pull rod cylinder is provided with a second inner wall boss, and the inner wall of the pull rod cylinder is divided into a third accommodation cavity and a fourth accommodation cavity by the second inner wall boss. The pull rod cylinder is connected to the end of the ball lock body away from the second connecting plate, and the pull rod cylinder is coaxially arranged with the ball lock body. A part of the piston rod is located in the third accommodation cavity, and one end of the piston rod away from the connecting end passes through the second inner wall boss and enters the fourth accommodation cavity. The pull rod is connected to the end of the piston rod away from the connecting end, and a second gap is left between the pull rod and the second inner wall boss. A second air inlet hole is provided on the side wall of the pull rod cylinder, the second air inlet hole communicates with the second gap, and the second gas supply joint is connected to the second air inlet hole.

[0014] Further, a pulling hole is provided on the pull rod.

[0015] Further, it further includes a hand lock nut, and the hand lock nut is threadedly connected to the end of the pull rod cylinder away from the second connecting plate. When the hand lock nut is tightened, its end abuts against the pull rod.

[0016] Further, a double - channel sealing ring is provided at the connection between the fixed - end liquid - path joint and the moving - end liquid - path joint. The fixed end further includes at least two guide pins, the guide pins are connected to the first connecting plate, and guide grooves are provided on the second connecting plate, and the guide grooves correspond to the guide pins one by one.

[0017] Compared with the prior art, the dual - liquid - path combined connector of the present invention has at least the following beneficial effects:

[0018] For a dual - liquid - path combined connector of the present invention, since the fixed end includes at least two fixed - end liquid - path joints and the moving end includes at least two moving - end liquid - path joints, using a set of connectors can meet the requirements of multi - path medium transportation, reduce the number of products required for supporting at the same time when transporting multiple media, and reduce the procurement cost and operation time.

[0019] The following further describes the dual - liquid - path combined connector of the present invention with reference to the drawings. Description of the Drawings

[0020] Figure 1 Schematic three-dimensional structure diagram of the fixed end in the dual-fluid path combined connector of the present invention;

[0021] Figure 2 Schematic three-dimensional structure diagram of the moving end in the dual-fluid path combined connector of the present invention;

[0022] Figure 3 Schematic three-dimensional structure diagram of the moving end and the fixed end of the dual-fluid path combined connector of the present invention when they are docked and locked;

[0023] Figure 4 Schematic partial cross-sectional structure diagram of the moving end and the fixed end of the dual-fluid path combined connector of the present invention when they are docked and locked;

[0024] Figure 5 Schematic three-dimensional structure diagram of the moving end and the fixed end of the dual-fluid path combined connector of the present invention when they are unlocked and separated;

[0025] Figure 6 Schematic side view structure diagram of the moving end and the fixed end of the dual-fluid path combined connector of the present invention when they are unlocked and separated;

[0026] Figure 7 Cross-sectional view of the dual-fluid path combined connector of the present invention when the moving end and the fixed end are docked and locked;

[0027] Figure 8 Cross-sectional view of the dual-fluid path combined connector of the present invention when the moving end and the fixed end are unlocked and separated. Detailed implementation manners

[0028] As Figure 1 、 Figure 2 、 Figure 3 shown, a dual-fluid path combined connector of the present invention includes a fixed end 01 and a moving end 02. The fixed end 01 is used to be connected to a working position, and the moving end 02 is adapted to be connected to or detached from the fixed end 01. The fixed end 01 includes two or more fixed-end fluid path connectors 11, and the moving end 02 includes two or more moving-end fluid path connectors 21. When the moving end 02 is connected to the fixed end 01, the moving-end fluid path connectors 21 are docked and communicated with the fixed-end fluid path connectors 11 one by one. Specifically, a plurality of mounting holes 15 are provided on the fixed end 01, and the fixed end 01 is installed to the working position, such as a dock, a spaceship, etc., through standard fasteners, and the moving end 02 can move freely with the operator or equipment. Before the medium is transported, the moving end 02 is moved near the fixed end 01, and through manual operation by personnel or automatic operation by equipment, the moving end 02 is docked and locked with the fixed end 01 to achieve the formal working state during medium transportation, such as Figure 3 、 Figure 4As shown; after the medium transportation is completed, the moving end 02 is unlocked and separated from the fixed end 01. At this time, there is no mutual restraint relationship between the moving end 02 and the fixed end 01. The fixed end 01 remains in place, and the moving end 02 can move freely to any position, such as Figure 5 、 Figure 6 As shown. In a dual-fluid path combination connector of the present invention, since the fixed end 01 includes at least two fixed-end fluid path connectors 11 and the moving end 02 includes at least two moving-end fluid path connectors 21, a set of connectors can meet the requirements of multi-path medium transportation, reduce the number of products required simultaneously when transporting multiple media, and reduce the procurement cost and operation time.

[0029] Optionally, as Figure 7 、 Figure 8 As shown, the fixed end 01 further includes a first connection plate 12. A ball lock hole 13 is provided in the middle of the first connection plate 12. Both fixed-end fluid path connectors 11 are connected to the first connection plate 12, and the two fixed-end fluid path connectors 11 are symmetrically arranged on both sides of the ball lock hole 13.

[0030] The moving end 02 further includes a second connection plate 22 and a ball lock 03. The ball lock 03 includes a lock core 32. The ball lock 03 is connected to the second connection plate 22. Both moving-end fluid path connectors 21 are connected to the second connection plate 22, and the two moving-end fluid path connectors 21 are symmetrically arranged on both sides of the ball lock 03. The lock core 32 is adapted to move relative to the second connection plate 22 to extend into or retract from the ball lock hole 13. When the lock core 32 extends into the ball lock hole 13, the moving end 02 is connected and locked to the fixed end 01. When the lock core 32 retracts from the ball lock hole 13, the moving end 02 is detachable from the fixed end 01. Since the two fixed-end fluid path connectors 11 are symmetrically arranged on both sides of the ball lock hole 13 and the two moving-end fluid path connectors 21 are symmetrically arranged on both sides of the ball lock 03, a central ball lock structure is formed, ensuring the overall balanced force between the moving end 02 and the fixed end 01 and avoiding mutual influence between the two path connectors during operation.

[0031] Optionally, a receiving groove 131 is provided on the inner wall of the ball lock hole 13. The ball lock 03 further includes a ball lock body 31, a lock core spring 320, a piston rod 33, a piston rod driving member, a locking ball 34, a loose sleeve 36, a loose sleeve spring 361, a loose sleeve limiting device 362, and a sleeve 37. The axial direction of the ball lock body 31 is perpendicular to the plane where the second connecting plate 22 is located. The inner cavity of the ball lock body 31 is divided into a first receiving cavity 313 and a second receiving cavity 314 by a first inner wall boss 310. A first mounting hole 311 is provided on the side wall of the ball lock body 31. The first mounting hole 311 is provided at one end of the ball lock body 31 close to the second connecting plate 22. A plurality of locking balls 34 are all arranged in the first mounting hole 311. The plurality of locking balls 34 are all distributed along the circumference of the ball lock body 31. The lock core 32 is arranged in the inner cavity of the ball lock body 31. One end of the lock core 32 is located in the first receiving cavity 313, and the other end of the lock core 32 passes through the first inner wall boss 310 and enters the second receiving cavity 314. A seal is provided between the lock core 32 and the first inner wall boss 310. The piston rod 33 is connected to one end of the lock core 32 located in the second receiving cavity 314. The piston rod 33 is partially located in the second receiving cavity 314. The piston rod 33 is coaxially arranged with the lock core 32. The piston rod driving member is used to drive the piston rod 33 to move axially. On the outer wall of the part of the lock core 32 located in the first receiving cavity 313, a first radial boss 321 and a second radial boss 322 are provided. The first radial boss 321 is close to the second connecting plate 22, and the second radial boss 322 is far from the second connecting plate 22. The first radial boss 321 includes a frustum-shaped part and a boss part with a concave arc-shaped surface. The lock core spring 320 is sleeved on the lock core 32 and the lock core spring 320 is located between the second radial boss 322 and the ball lock body 31. The loose sleeve limiting device 362 is provided on the outer wall of the ball lock body 31. The loose sleeve 36 and the loose sleeve spring 361 are both sleeved outside the ball lock body 31. The sleeve 37 is sleeved outside the loose sleeve 36 and the ball lock body 31. The loose sleeve spring 361 is located between the end of the loose sleeve 36 and the end of the sleeve 37. The loose sleeve 36 is adapted to move axially relative to the ball lock body 31. One end of the sleeve 37 is fixedly connected to the second connecting plate 22, and the other end of the sleeve 37 is fixedly connected to the outer wall of the ball lock body 31. When the fixed end 01 and the moving end 02 are in the unlocked state, the top of the locking ball 34 sinks into the first mounting hole 311, the bottom of the locking ball 34 abuts against the frustum-shaped part of the first radial boss 321, the top of the locking ball 34 is limited by the loose sleeve 36, and the inner side end of the loose sleeve 36 abuts against the loose sleeve limiting device 362. When the fixed end 01 and the moving end 02 are in the locked state, the top of the locking ball 34 is located in the receiving groove 131, the bottom of the locking ball 34 is located in the concave arc-shaped part of the first radial boss 321, and the inner side end of the loose sleeve 36 is far from the loose sleeve limiting device 362.

[0032] When the moving end 02 needs to be docked with the fixed end 01, move the moving end 02 close to the fixed end 01 and make the moving end 02 and the fixed end 01 coaxial, as Figure 5 , Figure 6 ,Figure 8 As shown, as the ball lock 03 continues to be inserted into the ball lock hole 13, the loop 36 is pushed to the right by the first connecting plate 11 until the loop 36 releases the radial limit on the locking ball 34, and the locking ball 34 also releases the leftward movement limit on the lock core 32. Under the leftward force of the lock core spring 320 in the compressed state, the lock core 32 moves to the left, and the lock core 32 pushes the locking ball 34 to move radially along the first mounting hole 311 until the locking ball 34 protrudes out of the ball lock body 31 and enters the accommodating groove 131 of the ball lock hole 13, forming a state of mutual restraint and limit of the four components of the lock core 32, the locking ball 34, the ball lock body 31 and the first connecting plate 11, that is, the ball lock locked state, which is also the docking and locking state of the moving end 02 and the fixed end 01, as shown in FIG. Figure 7 As shown; at this time, after the moving end liquid path connector 21 and the fixed end liquid path connector 11 are paired, a channel is provided for the liquid medium to be transported, and the liquid medium can flow from the moving end liquid path connector 21 to the fixed end liquid path connector 11, and can also flow from the fixed end liquid path connector 11 to the moving end liquid path connector 21.

[0033] When the movable end 02 needs to be separated from the fixed end 01, the piston rod driving member drives the piston rod 33 and the lock core 32 to move to the right, releases the radial limit of the lock core 32 on the locking ball 34, and the locking ball 34 is retracted from the first mounting hole 311 to the inner side of the ball lock body 31. At this time, the ball lock body 31 can be pulled out of the ball lock hole 13. Through manual operation by personnel or automatic operation of equipment, the movable end 02 is moved away from the fixed end 01 to achieve the separation of the movable end 02 and the fixed end 01. The separation state is as follows: Figure 7 As the moving end 02 moves away from the fixed end 01, the looper 36 is pushed to the left by the looper spring 361 until the looper 36 is stopped by the looper stopper 362. At this time, the looper 36 and the lock core 32 simultaneously limit the locking ball 34 in the radial direction, keeping the locking ball 34 in the first mounting hole 311 to prevent the locking ball 34 from falling out abnormally.

[0034] The locking of the moving end 02 and the fixed end 01 is achieved by the cooperation of the ball lock body 31, the lock core 32, the locking ball 34 and the ball lock hole 13. When locking, the locking ball 34 is radially limited by the lock core 32, protruding from the ball lock body 31 and the top of the locking ball 34 is placed in the receiving groove 131 of the ball lock hole 13. The ball lock body 31 is limited by the locking ball 34 and cannot be pulled out, making the connection between the moving end 02 and the fixed end 01 more stable, avoiding the accidental disconnection of the moving end 02 and the fixed end 01, thereby ensuring that the moving end liquid path connector 21 and the fixed end liquid path connector 11 are in close contact with each other.

[0035] Optionally, a second mounting hole 312 is further provided on the side wall of the ball lock body 31. The second mounting hole 312 is located inside the first mounting hole 311. The loose sleeve limiting device 362 is a plurality of limiting balls disposed in the second mounting hole 312. The plurality of limiting balls all protrude from the outer wall of the ball lock body 31, and the plurality of limiting balls are circumferentially distributed along the ball lock body 31.

[0036] Optionally, a plurality of piston rod driving members are provided. When one piston rod driving member fails, the piston rod 33 can be driven to move by other piston rod driving members, ensuring the reliability of ball lock unlocking. At the same time, the reliability of the separation between the moving end and the fixed end is also improved, making the dual-fluid path combined connector of the present invention applicable to scenarios with high requirements for separation reliability.

[0037] Optionally, the piston rod driving member includes a first air supply joint 331. The piston rod 33 includes a connection end 330. The connection end 330 is connected to the lock core 32. The outer wall of the connection end 330 and the inner wall of the second accommodation cavity 314 are sealed with each other. A first air inlet hole 316 is provided on the side wall of the ball lock body 31. When the fixed end 01 and the moving end 02 are in a locked state, a first gap 332 is left between the end of the connection end 330 and the first inner wall boss 310. The first air inlet hole 316 communicates with the first gap 332. One end of the first air supply joint 331 is connected to the first air inlet hole 316, and the other end is connected to a high-pressure air source. Specifically, the connection end 330 and the lock core 32 are connected by threads, and a sealing ring 335 is provided between the outer wall of the connection end 330 and the inner wall of the second accommodation cavity 314. When the ball lock 03 needs to be unlocked, the first air supply joint 331 supplies air, and the high-pressure gas drives the piston rod 33 to drive the lock core 32 to move to the right through the first gap 332, releasing the radial limit of the lock core 32 on the locking ball 34. The locking ball 34 retracts into the ball lock body 31. At this time, the ball lock body 31 can be pulled out from the ball lock hole 13, realizing the separation between the moving end 02 and the fixed end 01.

[0038] Optionally, it further includes a second gas supply joint 332, a pull rod cylinder 38, and a pull rod 381. A second inner wall boss 382 is provided on the inner wall of the pull rod cylinder 38. The inner wall of the pull rod cylinder 38 is divided into a third accommodation cavity 383 and a fourth accommodation cavity 384 by the second inner wall boss 382. The pull rod cylinder 38 is connected to the end of the ball lock body 31 away from the second connecting plate. The pull rod cylinder 38 is coaxially arranged with the ball lock body 31. Part of the piston rod 33 is located in the third accommodation cavity 383. One end of the piston rod 33 away from the connecting end 330 passes through the second inner wall boss 382 and enters the fourth accommodation cavity 384. A sealing ring 388 is provided between the piston rod 33 and the second inner wall boss 382. The pull rod 381 is connected to one end of the piston rod 33 away from the connecting end 330. A second gap 386 is left between the pull rod 381 and the second inner wall boss 382. A second air inlet hole 387 is provided on the side wall of the pull rod cylinder 38. The second air inlet hole 387 communicates with the second gap 386. The second gas supply joint 332 is connected to the second air inlet hole 387. When the ball lock 03 needs to be unlocked and the first gas supply joint 331 has abnormal gas supply, gas can also be supplied through the second gas supply joint 332. The high-pressure gas drives the pull rod 381 and the piston rod 33 to drive the lock core 32 to move to the right through the second gap 386, releasing the radial limit of the lock core 32 on the locking ball 34. The locking ball 34 retracts into the ball lock body 31. At this time, the ball lock body 31 can be pulled out from the ball lock hole 13, realizing the separation of the moving end 02 and the fixed end 01.

[0039] Optionally, a pulling hole 385 is provided on the pull rod 381. When the first gas supply joint 331 and the second gas supply joint 332 have abnormal gas supply, an external force can also be applied through the pulling hole 385 to pull the pull rod 381, the piston rod 33, and the lock core 32 to move to the right together, realizing unlocking and separation.

[0040] Optionally, it further includes a hand lock nut 39. The hand lock nut 39 is threadedly connected to the end of the pull rod cylinder 38 away from the second connecting plate. When the hand lock nut 39 is tightened, its end abuts against the pull rod 381. When unlocking, first remove the hand lock nut 39, and then drive the piston rod 33 to drive the lock core 32 to move to the right through the piston rod driving member. The rightward movement of the pull rod 381, the piston rod 33, and the lock core 32 is limited by the hand lock nut 39 to prevent abnormal unlocking of the ball lock 03 and abnormal separation of the moving end 02 and the fixed end 01, and further avoid the leakage of the medium in the liquid path joint.

[0041] Optionally, a double sealing ring 16 is provided at the connection between the fixed end liquid path joint 11 and the moving end liquid path joint 21. During the flow of the medium, the two ends of the liquid path joint are sealed by the double sealing ring 16, achieving the effect of sealing redundancy, greatly improving the reliability of sealing, and preventing accidental leakage of the medium.

[0042] Optionally, the fixed end 01 further includes two or more guide pins 14. The guide pins 14 are connected to the first connecting plate 12. Guide grooves are provided on the second connecting plate 22, and the guide grooves correspond to the guide pins 14 one by one. During the docking process of the moving end 02 and the fixed end 01, the guide pins 14 first enter the guide grooves to ensure that the fixed-end liquid path connector 11 and the moving-end liquid path connector 21 are coaxial, and the ball lock 03 and the ball lock hole 13 are coaxial. At the same time, under the restriction of the guide pins 14, the moving end 02 can only move back and forth, avoiding structural jamming caused by inclination when the ball lock 03 is inserted into the ball lock hole 13, and ensuring the smooth docking of the moving end 02 and the fixed end 01 in place.

[0043] Optionally, it further includes a signal sending component 04 and a measurement and control system. The signal sending component 04 is arranged below the ball lock. The function of the signal sending component 04 is to monitor the docking or separation state of the moving end 02 and the fixed end 01. When the moving end 02 and the fixed end 01 are in the docking and locking state, the signal sending component 04 sends a "docking" signal to the measurement and control system. When the signal sending component 04 is in the unlocking and separating state, the signal sending component 04 sends a "separation" signal to the measurement and control system. The measurement and control system can judge the state of the moving end 02 and the fixed end 01 according to the received signal type. Through the signal sending component 04 and the measurement and control system, the docking or separation state of the moving end 02 and the fixed end 01 can be monitored in real time, which is suitable for the requirements of unmanned and automated operations.

[0044] The embodiments described above are only used to describe the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A dual fluid path combined connector, characterized in that: The invention comprises a fixed end (01) and a movable end (02), wherein the fixed end (01) is used to be connected to a working position, and the movable end (02) is suitable for being connected to or removed from the fixed end (01). The fixed end (01) comprises at least two fixed end fluid path connectors (11), and the movable end (02) comprises at least two movable end fluid path connectors (21). When the movable end (02) is connected to the fixed end (01), the movable end fluid path connectors (21) are connected to the fixed end fluid path connectors (11) in a one-to-one manner.

2. The dual fluid path combined connector according to claim 1, characterized in that: The fixed end (01) further comprises a first connecting plate (12), a ball lock hole (13) is arranged in the middle of the first connecting plate (12), the fixed end fluid path connectors (11) are all connected to the first connecting plate (12), and the fixed end fluid path connectors (11) are symmetrically arranged on both sides of the ball lock hole (13). The moving end (02) further comprises a second connecting plate (22) and a ball lock (03). The ball lock (03) comprises a lock core (32). The ball lock (03) is connected to the second connecting plate (22). The moving end fluid path connectors (21) are all connected to the second connecting plate (22). The moving end fluid path connectors (21) are symmetrically arranged on both sides of the ball lock (03). The lock core (32) is suitable for moving relative to the second connecting plate (22) to extend into the ball lock hole (13) or retract from the ball lock hole (13).

3. The dual fluid path combined connector according to claim 2, characterized in that: The inner wall of the ball lock hole (13) is provided with a receiving groove (131). The ball lock (03) further comprises a ball lock body (31), a lock core spring (320), a piston rod (33), a piston rod driving member, a locking ball (34), a slip ring (36), a slip ring spring (361), a slip ring limiting device (362), and a sleeve (37). The axial direction of the ball lock body (31) is perpendicular to the plane where the second connecting plate (22) is located. The inner cavity of the ball lock body (31) is divided into a first accommodating cavity (313) and a second accommodating cavity (314) by a first inner wall boss (310). The side wall of the ball lock body (31) is provided with a first mounting hole (311). The first mounting hole (311) is provided at one end of the ball lock body (31) close to the second connecting plate (22). The plurality of locking balls (34) are all provided at the inner wall. In the first mounting hole (311), a plurality of locking balls (34) are distributed along the circumference of the ball lock body (31); the lock core (32) is arranged in the inner cavity of the ball lock body (31); one end of the lock core (32) is located in the first accommodating cavity (313); the other end of the lock core (32) passes through the first inner wall boss (310) and enters the second accommodating cavity (314); the lock core (32) and the first inner wall boss (310) are sealed with each other; the piston rod (33) is connected to one end of the lock core (32) located in the second accommodating cavity (314); a portion of the piston rod (33) is located in the second accommodating cavity (314); the piston rod (33) and the lock core (32) are arranged in the same manner. The piston rod driving member is used to drive the piston rod (33) to move axially, and the outer wall of the lock core (32) located inside the first accommodating cavity (313) is provided with a first radial boss (321) and a second radial boss (322), the first radial boss (321) is close to the second connecting plate (22), and the second radial boss (322) is far away from the second connecting plate (22), the first radial boss (321) includes a truncated cone-shaped part and a boss part with a concave arc surface, the lock core spring (320) is sleeved on the lock core (32) and the lock core spring (320) is located between the second radial boss (322) and the ball lock body (31), and the loop limiting device (3 62) is arranged on the outer wall of the ball lock body (31), the looper (36) and the looper spring (361) are both sleeved outside the ball lock body (31), the sleeve (37) is sleeved outside the looper (36) and the ball lock body (31), the looper spring (361) is located between the end of the looper (36) and the end of the sleeve (37), the looper (36) is suitable for axial movement relative to the ball lock body (31), one end of the sleeve (37) is fixedly connected to the second connecting plate (22), and the other end of the sleeve (37) is fixed to the ball lock body (31), when the fixed end (01) and the moving end (02) are in the unlocked state, the top of the locking ball (34) is immersed in the first mounting hole (311),The bottom of the locking ball (34) abuts against the truncated cone-shaped portion of the first radial boss (321), the top of the locking ball (34) is limited by the loop (36), and the inner end of the loop (36) abuts against the loop limiting device (362). When the fixed end (01) and the moving end (02) are in a locked state, the top of the locking ball (34) is located in the receiving groove (131), the bottom of the locking ball (34) is located in the concave arc-shaped portion of the first radial boss (321), and the inner end of the loop (36) is away from the loop limiting device (362).

4. The dual fluid path combined connector according to claim 3, characterized in that: The side wall of the ball lock body (31) is also provided with a second mounting hole (312), the second mounting hole (312) is located inside the first mounting hole (311), the loop limiting device (362) is a plurality of limiting balls arranged in the second mounting hole (312), the plurality of limiting balls all protrude from the outer wall of the ball lock body (31), and the plurality of limiting balls are distributed along the circumference of the ball lock body (31).

5. The dual fluid path combined connector according to claim 4, characterized in that: The piston rod driving member is provided in plurality.

6. The dual fluid path combined connector according to claim 5, characterized in that: The piston rod driving member includes a first air supply connector (331), and the piston rod (33) includes a connecting end (330), wherein the connecting end (330) is connected to the lock core (32), and the outer wall of the connecting end (330) and the inner wall of the second accommodating chamber (314) are sealed with each other, and a first air inlet hole (316) is provided on the side wall of the ball lock body (31), and when the fixed end (01) and the movable end (02) are in a locked state, a first gap (332) is left between the end of the connecting end (330) and the first inner wall boss (310), and the first air inlet hole (316) is communicated with the first gap (332), and the first air supply connector (331) is connected to the first air inlet hole (316).

7. The dual fluid path combined connector according to claim 6, characterized in that: It also includes a second air supply joint (332), a rod tube (38), and a rod (381). The inner wall of the rod tube (38) is provided with a second inner wall boss (382). The inner wall of the rod tube (38) is divided into a third accommodating chamber (383) and a fourth accommodating chamber (384) by the second inner wall boss (382). The rod tube (38) is connected to an end of the ball lock body (31) away from the second connecting plate (22). The rod tube (38) is coaxially arranged with the ball lock body (31). The piston rod (33) is partially located in the third accommodating chamber (383). The end away from the connecting end (330) passes through the second inner wall boss (382) and enters the fourth accommodating chamber (384), and the pull rod (381) is connected to the end of the piston rod (33) away from the connecting end (330). A second gap (386) is left between the pull rod (381) and the second inner wall boss (382). A second air inlet hole (387) is provided on the side wall of the pull rod tube (38), and the second air inlet hole (387) is connected to the second gap (386), and the second air supply connector (332) is connected to the second air inlet hole (387).

8. The dual fluid path combined connector according to claim 7, characterized in that: The pull rod (381) is provided with a pulling hole (385).

9. The dual fluid path combined connector according to claim 8, characterized in that: It also includes a hand-locking nut (39), which is threadedly connected to one end of the pull rod tube (38) away from the second connecting plate (22), and the end of the hand-locking nut (39) abuts against the pull rod (381) when being tightened.

10. The dual fluid path combined connector according to claim 9, characterized in that: A double-channel sealing ring (16) is provided at the connection between the fixed end liquid circuit joint (11) and the movable end liquid circuit joint (21), and the fixed end (01) also includes at least two guide pins (14), the guide pins (14) are connected to the first connecting plate (12), and the second connecting plate (22) is provided with guide grooves, and the guide grooves correspond to the guide pins (14) one by one.

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