Fluid connection socket and fluid connector

Abstract

The present invention provides a fluid connection socket, comprising a housing, a sealing assembly, a push-pull ring and a jaw assembly. The sealing assembly is elastically mounted in the accommodating cavity of the housing and can move axially. The push-pull ring is elastically sleeved on the housing and can move between a first axial position and a second axial position. The jaw assembly is movably mounted in the accommodating cavity and can be switched between a locked state and an unlocked state, and both the jaw assembly and the sealing assembly have mating portions that can be wedge-fitted with each other. The housing is penetrated with a mounting hole, a locking member is accommodated in the mounting hole, a locking groove is formed on the jaw assembly, and when the push-pull ring moves to the first position, the locking member can be pushed into the locking groove to lock the jaw assembly in the locked state; by pushing the push-pull ring to the second position, the sealing assembly axially pushes the jaw assembly to move and radially expand to the unlocked state, and drives the locking member to move radially so that the push-pull ring is held in the second position. The present invention also provides a fluid connector having the fluid connection socket.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and particularly relates to a fluid connection socket and a fluid connector. Background Art

[0002] A fluid connector is a pipeline device and is a component that plays a transmission role in a liquid cooling and heat dissipation system. It is used to achieve the rapid connection and disconnection of cooling pipelines and ensure the sealing function of the cooling pipelines in any state, with quick operation and convenient maintenance. As an important component for connecting high-pressure fluid pipelines and controlling the on-off of pipelines, the connection of its plug and socket is particularly important.

[0003] In existing fluid connectors, the connection methods include blind plug type, bayonet type, and push-pull type. For blind plug type and bayonet type fluid connectors, there are problems such as slow insertion and separation operations between the plug and the socket, and instability at the connection. The connection of push-pull type fluid connectors is more reliable and has better sealing performance. However, existing push-pull type fluid connectors have a complex product structure and a risk of insufficient locking; secondly, when using the locking function of existing push-pull type fluid connectors, it is necessary to manually pull the push-pull ring, and the operation is not simple enough; on the other hand, existing push-pull type fluid connectors have a relatively single product locking structure, and the socket can only be correspondingly suitable for specific plugs, and the locking structure of the socket cannot be used with plugs of different structures according to actual usage conditions.

[0004] Therefore, it is necessary to provide a fluid connection socket for a fluid connector with a simple structure, convenient operation, and capable of changing the diameter or shape of the clamping claw mouth according to the usage situation to lock plugs of various different specifications. Summary of the Invention

[0005] The purpose of the present invention is to provide a fluid connection socket for a fluid connector with a simple structure, convenient operation, and capable of changing the diameter or shape of the clamping claw mouth according to the usage situation to lock plugs of various different specifications.

[0006] Another purpose of the present invention is to provide a fluid connector, which has the above-mentioned fluid connection socket, so that the structure is simpler, the operation is more convenient, and it can also better cooperate with various plugs.

[0007] To achieve the above purpose, the present invention provides a fluid connection socket, including:

[0008] A housing having an accommodation cavity;

[0009] A sealing assembly elastically installed in the accommodation cavity and axially movable in the accommodation cavity;

[0010] A push-pull ring elastically sleeved on the housing and movable between a first axial position and a second axial position;

[0011] A jaw assembly is movably installed in the accommodating cavity and can be switched between a locked state and an unlocked state. Both the jaw assembly and the sealing assembly have mating parts that can be wedge-fitted with each other.

[0012] Among them, a plurality of mounting holes are penetratingly formed in the housing along its circumferential direction. Locking members are accommodated in the mounting holes. The jaw assembly is correspondingly provided with locking grooves for accommodating the locking members. When the push-pull ring moves to the first position, it can push the locking members into the locking grooves to lock the jaw assembly in the locked state. By pushing the push-pull ring to the second position, the sealing assembly axially pushes the jaw assembly and radially expands it to the unlocked state, and drives the locking members to move radially so that the push-pull ring remains in the second position.

[0013] Preferably, the jaw assembly includes a plurality of clamping jaws. The plurality of clamping jaws are equidistantly distributed along the circumferential direction in the accommodating cavity, and each clamping jaw has a mating part that is wedge-fitted with the sealing assembly.

[0014] Preferably, the mating part on the clamping jaw is a driving inclined surface that is wedge-fitted with the sealing assembly, and the mating part on the sealing assembly is a pushing inclined surface that is wedge-fitted with the driving inclined surface. The clamped jaw assembly presses the sealing assembly by the action of the driving inclined surface on the pushing inclined surface. By pushing the push-pull ring to the second position, the pushing inclined surface pushes the driving inclined surface and slides along the driving inclined surface, so that the plurality of clamping jaws slide in the accommodating cavity and open outward by a first preset angle.

[0015] Preferably, a first convex part is provided on the clamping jaw. The first convex part protrudes from the clamping jaw towards the direction close to the sealing assembly. A material pushing part that cooperates with the first convex part is provided on the sealing assembly. The pushing inclined surface pushes the driving inclined surface and slides along the driving inclined surface until the material pushing part acts on the first convex part. The material pushing part drives the clamping jaw to slide in the accommodating cavity to a first preset position, and the plurality of clamping jaws open outward by a second preset angle to be in the unlocked state.

[0016] Preferably, a clamping block that cooperates with the first convex part is further provided on the sealing assembly. When the sealing assembly is stressed to axially move along the accommodating cavity until the clamping block is engaged with the first convex part, the clamping jaw is driven to rotate inward by a second preset angle and slide to a second preset position. The push-pull ring automatically moves to the first position and pushes the locking member into the locking groove to lock the jaw assembly in the locked state.

[0017] Preferably, a second convex part is further provided on the clamping jaw. The second convex part protrudes from the clamping jaw towards the direction close to the housing. A protruding convex block is provided in the accommodating cavity of the housing. The sealing assembly drives the clamping jaw to slide in the accommodating cavity until the second convex part is hooked on the convex block.

[0018] Preferably, an arc surface is provided protruding on the clamping jaw, and a rotating inclined surface cooperating with the arc surface is provided at the top end of the housing; the material pushing part pushes the plurality of clamping jaws to move axially, and makes the plurality of clamping jaws slide along the rotating inclined surface with the arc surface as a fulcrum and gradually open outwards.

[0019] Preferably, a pushing part is provided protruding inside the push-pull ring. When the push-pull ring moves to the first position, the pushing part pushes the locking part into the locking groove to lock the jaw assembly in the locked state; the push-pull ring is pushed to the second position to disengage the pushing part from the locking part.

[0020] Preferably, a groove for accommodating the locking part is provided at one end of the pushing part. When the push-pull ring is pushed to the second position, the sealing assembly pushes the jaw assembly to squeeze the locking part out of the locking groove and makes the locking part located in the groove, so that the push-pull ring remains in the second position.

[0021] Preferably, a transition inclined surface is provided between the pushing part and the groove, so that the push-pull ring can move between the first position and the second position by means of the transition inclined surface.

[0022] Preferably, a first elastic member is provided between the push-pull ring and the housing. One end of the first elastic member abuts against the housing, and the other end abuts against the push-pull ring. The first elastic member always has a tendency to drive the push-pull ring to reset.

[0023] Preferably, the sealing assembly includes a sealing rod, a waterproof ring and a second elastic member. A first cavity is provided at one end of the sealing rod. One end of the second elastic member is located in the first cavity and abuts against the inner wall of the first cavity, and the other end of the second elastic member abuts against the housing in the accommodating cavity; a second cavity is provided at the other end of the sealing rod, and the waterproof ring is installed in the second cavity.

[0024] Preferably, the housing includes a socket housing and a socket base housing. One end of the socket base housing is connected to the socket housing to form an accommodating cavity; the other end of the socket base housing is provided with an internal thread mounting portion, or an external thread mounting portion, or a flange connection assembly, or a partition connection assembly, or a clamp connection assembly.

[0025] Preferably, the aperture of the mounting hole near the end of the jaw assembly is smaller than the diameter of the locking part.

[0026] Preferably, the locking part has a spherical structure.

[0027] Another object of the present invention is to provide a fluid connector, comprising a fluid connection plug and the above-mentioned fluid connection socket. In the unlocked state of the sealing assembly, when the fluid connection plug is inserted into the fluid connection socket, it pushes the sealing assembly, the jaw assembly moves axially and closes radially to clamp the fluid connection plug, the push-pull ring automatically resets to the first position and pushes the locking member into the locking groove to lock the jaw assembly, so that the jaw assembly keeps clamping the fluid connection plug; by pushing the push-pull ring to the second position, the jaw assembly can be unlocked, and the fluid connection plug automatically pops out from the fluid connection socket.

[0028] Preferably, the jaw assembly includes a plurality of clamping jaws, and each clamping jaw is provided with a hook portion that cooperates with the fluid connection plug. The fluid connection plug is provided with an engaging portion that cooperates with the hook portion, and the hook portion engages with the engaging portion to fix the fluid connection plug.

[0029] After adopting the above technical solution, the fluid connector of the present invention includes a fluid connection socket and a fluid connection plug. The fluid connection socket includes a socket base housing, a socket housing, a sealing assembly, a push-pull ring, and a jaw assembly. The socket housing is connected to the socket base housing to form a receiving cavity. The sealing assembly is elastically installed in the receiving cavity and can axially move in the receiving cavity. The push-pull ring is elastically sleeved on the socket housing and can move between a first axial position and a second axial position. And the push-pull ring always has a tendency to reset, so as to automatically drive the locking member to lock the jaw assembly in the locked state. The jaw assembly is movably installed in the receiving cavity and can be switched between a locked state and an unlocked state, and both the jaw assembly and the sealing assembly have mating portions that can be wedge-fitted with each other. The sealing assembly and the jaw assembly can be wedge-fitted so that the jaw assembly can lock the sealing assembly, or the movement of the sealing assembly can drive the jaw assembly to move. Among them, a plurality of mounting holes are axially penetrated through the socket housing along its circumferential direction, and the jaw assembly is provided with locking grooves corresponding to the mounting holes for accommodating the locking member. When the push-pull ring moves to the first position, it can push the locking member into the locking groove to lock the jaw assembly in the locked state. By pushing the push-pull ring to the second position, the sealing assembly pushes the jaw assembly to axially move and radially expand to the unlocked state, and drives the locking member to radially move so that the push-pull ring remains in the second position. When the locking member is in the locking groove, it can lock the jaw assembly. When the locking member disengages from the locking groove, it is located in the groove, which can keep the push-pull ring in the second position. Specifically, the jaw assembly includes a plurality of clamping jaws, and each clamping jaw is provided with a hook portion that cooperates with the fluid connection plug. The fluid connection plug is provided with an engaging portion that cooperates with the hook portion, and the hook portion is engaged with the engaging portion so that the fluid connection plug is stably installed in the fluid connection socket. According to the structure of the fluid connection plug, the jaw assembly adapted to it can be replaced, and different structures of plug and socket can be used according to actual usage conditions, and the product has strong versatility. At the same time, the fluid connection socket can change the mouth diameter or shape of the jaw assembly according to the usage situation to lock a variety of different specifications of plugs. The fluid connection plug is installed in the jaw assembly and pushes the sealing assembly, so that the sealing assembly drives the jaw assembly to axially move and radially close to clamp the fluid connection plug. The push-pull ring automatically resets to lock the jaw assembly, so that the jaw assembly keeps clamping the fluid connection plug. The fluid connector of the present invention includes a fluid connection socket and a fluid connection plug. The structure of the fluid connection socket is ingenious, easy to operate, and can be adjusted to adapt to a variety of different fluid connection plugs. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0031] Figure 1 It is a structural diagram of a fluid connection socket provided by an embodiment of the present invention.

[0032] Figure 2 It is Figure 1 a sectional view of.

[0033] Figure 3 It is Figure 2 a partial structural sectional view of.

[0034] Figure 4 It is Figure 2 a structural sectional view of another state.

[0035] Figure 5 It is Figure 4 a partial structural sectional view of.

[0036] Figure 6 It is Figure 2 a structural diagram of the socket base housing in.

[0037] Figure 7 It is Figure 2 a structural diagram of the socket housing in.

[0038] Figure 8 It is Figure 2 a structural diagram of the push-pull ring in.

[0039] Figure 9 It is Figure 2 a structural diagram of the jaw assembly in.

[0040] Figure 10 It is a structural diagram of a fluid connector provided by an embodiment of the present invention.

[0041] Figure 11 It is Figure 10 a sectional view of.

[0042] Figure 12 It is Figure 11 a structural sectional view of another state.

[0043] Figure 13 It is a structural diagram of a fluid connector provided by another embodiment of the present invention.

[0044] Figure 14 It is Figure 10 a structural diagram of the plug housing in.

[0045] Figure 15 It is a sectional view of the plug housing provided by another embodiment of the present invention.

[0046] Figure 16 It is a sectional view of the plug housing provided by yet another embodiment of the present invention.

[0047] Description of reference numerals:

[0048] 1000. Fluid connector;

[0049] 100. Fluid connection socket;

[0050] 101, housing; 102, accommodating cavity; 10, socket base housing; 11, first inner cavity; 12, first threaded portion; 13, connecting portion; 20, socket housing; 21, second inner cavity; 22, mounting hole; 221, gradient portion; 23, convex block; 24, concave portion; 25, abutting portion; 26, second threaded portion; 27, rotating inclined surface; 30, sealing assembly; 31, sealing rod; 311, push inclined surface; 312, slot body; 313, Block; 314, material pushing part; 32, waterproof ring; 33, second elastic member; 34, sealing ring; 40, push-pull ring; 41, push part; 42, transition slope; 43, groove; 50, clamping jaw assembly; 51, clamping jaw; 511, locking groove; 512, first clamping protrusion; 513, second clamping protrusion; 514, driving slope; 515, clamping hook; 516, arc surface; 60, locking member; 70, first elastic member; 80, retaining spring;

[0051] 200, plug housing; Embodiment 1: 201, snap-fitting portion; Embodiment 2: 201', snap-fitting portion; Embodiment 3: 201", snap-fitting portion. DETAILED DESCRIPTION

[0052] In order to explain the technical content and structural features of the present invention in detail, further description will be given below in combination with the implementation modes and the accompanying drawings.

[0053] See also Figures 1 to 5 and Figures 10 to 13, the present invention provides a fluid connector 1000, which includes a fluid connection socket 100 and a fluid connection plug. The fluid connection plug includes a plug housing 200. Specifically, the fluid connection socket 100 includes a housing 101, a sealing assembly 30, a push-pull ring 40, and a jaw assembly 50. An accommodation cavity 102 is provided in the housing 101. The sealing assembly 30 is elastically mounted in the accommodation cavity 102 and can axially move in the accommodation cavity 102. The push-pull ring 40 is elastically sleeved on the socket housing 20, and the push-pull ring 40 can move along the housing 101 between a first position and a second position in the axial direction. The first position is the position where the pushing portion 41 of the push-pull ring 40 pushes the locking member 60, and the second position is the position where the pushing portion 41 of the push-pull ring 40 disengages from the locking member 60 and the locking member 60 is located in the groove 43. At the same time, the push-pull ring 40 always has a tendency to reset. In addition, the jaw assembly 50 is movably mounted in the accommodation cavity 102 and can be switched between a locked state and an unlocked state. Both the jaw assembly 50 and the sealing assembly 30 have mating portions that can be wedge-fitted with each other. It can be understood that the sealing assembly 30 and the jaw assembly 50 can be wedge-fitted so that the jaw assembly 50 can lock the sealing assembly 30, or the movement of the pushing assembly 30 can drive the jaw assembly 50 to move. Among them, the housing 101 is provided with a plurality of mounting holes 22 for mounting the locking member 60 penetratingly along its circumferential direction at the same height or approximately at the same height. The locking member 60 moves in the mounting holes 22 to lock or unlock the jaw assembly 50. The diameter of the locking member 60 is greater than the thickness of the base housing, so that the locking member 60 can protrude from both ends of the mounting hole 22 and can respectively contact the push-pull ring 40 and the jaw assembly 50. Specifically, the jaw assembly 50 is provided with a locking groove 511 for accommodating the locking member 60 corresponding to the mounting hole 22. When the push-pull ring 40 moves to the first position, it can push the locking member 60 into the locking groove 511 to lock the jaw assembly 50 in the locked state. By pushing the push-pull ring 40 to the second position, the sealing assembly 30 pushes the jaw assembly 50 to axially move and radially expand to the unlocked state, and drives the locking member 60 to radially move so that the push-pull ring 40 remains in the second position. Exemplarily, when the locking member 60 locks the jaw assembly 50, push and pull the push-pull ring 40 to unlock the jaw assembly 50, and the sealing assembly 30 is also unlocked. The sealing assembly 30 elastically pushes the jaw assembly 50, and the jaw assembly 50 slides along the inner wall of the accommodation cavity 102 to the first preset position and expands outward; at this time, the push-pull ring 40 remains in the second position. When the jaw assembly 50 is in the unlocked and expanded state, by pressing the sealing assembly 30, the sealing assembly 30 drives the jaw assembly 50 to slide downward along the inner wall of the accommodation cavity 102 to the second preset position and close inward, and the push-pull ring 40 automatically resets, that is, the push-pull ring 40 at this time can automatically move to the first position to push the locking member 60 into the locking groove 511 to lock the jaw assembly 50 in the locked state.

[0054] In this embodiment, when the locking member 60 disengages from the locking groove 511, the force of the sealing assembly 30 elastically pushing the jaw assembly 50 can drive the jaw assembly 50 to move axially and radially expand to the unlocking state. First, due to the wedge-shaped mating structure between the sealing assembly 30 and the jaw assembly 50, the jaw assembly 50 slides upward by a certain distance, expands outward by a first preset angle and abuts against the inner wall of the accommodating cavity 102. Then, the sealing rod 31 assembly continues to act, so that the sealing assembly 30 drives the jaw assembly 50 to slide to a first preset position and makes the jaw assembly 50 expand outward by a second preset angle. At this time, the jaw assembly 50 is in an open unlocking state and protrudes out of the housing 101, so as to facilitate the installation of the fluid connection plug. In another case, the fluid connection plug is installed in the jaw assembly 50 and pushes the sealing assembly 30, so that the sealing assembly 30 drives the jaw assembly 50 to pre-rotate by a second preset angle and slide downward to a second preset position. The push-pull ring 40 automatically resets to push the locking member 60 to lock the jaw assembly 50. The jaw assembly 50 rotates inward by a first preset angle to close and lock the fluid connection plug. Then, the sealing assembly 30 elastically returns to the position where it is wedge-shaped with the jaw assembly 50. When pulling out the fluid connection plug, first push the push-pull ring 40 so that the push-pull ring 40 moves from the first position to the second position. The jaw assembly 50 is unlocked, and the force acting on the sealing assembly 30 is cancelled, so that the fluid connection plug can be automatically ejected under the pushing of the sealing assembly 30, which is convenient for disassembly. It can be understood that the first preset position is the position where the second convex portion 513 is hooked on the convex block 23 of the socket housing 20. The second preset position is the position where the jaw assembly 50 can be locked by the locking member 60, that is, the position where the locking groove 511 is aligned with the mounting hole 22. The first preset angle is the angle at which the jaw assembly 50 is pushed by the sealing assembly 30 from the closed state to abut against the inner wall of the accommodating cavity 102. The second preset angle is the sum of the angles at which the arc surface 516 contacts the rotating inclined surface 27 and rotates on the rotating inclined surface 27. The fluid connector 1000 of the present invention, the fluid connection socket 100 can be adjusted to adapt to a variety of different fluid connection plugs, and has a simple structure and convenient operation.

[0055] Please refer to Figures 1 to 7, in some alternative embodiments, the housing 101 includes a socket base housing 10 and a socket housing 20. One end of the socket base housing 10 is threadedly connected to the socket housing 20. Specifically, the socket housing 20 is provided with a first thread portion 12 at one end connected to the socket base housing 10, and a second thread portion 26 is provided at one end of the socket housing 20. The socket base housing 10 is connected to the second thread portion 26 of the socket housing 20 through the first thread portion 12. Specifically, a first inner cavity 11 is provided in the socket base housing 10, and a second inner cavity 21 is provided in the socket housing 20. The first inner cavity 11 and the second inner cavity 21 form a receiving cavity 102. On the other hand, a connecting portion 13 is provided at the other end of the socket base housing 10. The connecting portion 13 can be an internal thread mounting portion, or an external thread mounting portion, or a flange connection assembly, or a partition connection assembly, or a clamp connection assembly. It can be understood that the tail interface form of the socket base housing 10 is diverse, including external thread form, internal thread form, flange form, partition connection form, clamp connection, etc. It can be used for the connection between pipelines and pipelines, the connection between pipelines and plates, and the connection between pipelines or equipment. In this embodiment, the mounting hole 22 is close to one end of the jaw assembly 50, and the aperture is smaller than the diameter of the locking member 60. Exemplarily, at one end of the mounting hole 22 close to the jaw assembly 50, there can be a tapered surface or a tapered portion 221 such as an arc surface 516 with a gradually decreasing volume, so that the space at the end of the mounting hole 22 is slightly smaller than the diameter of the locking member 60 to prevent the locking member 60 from falling into the product interior.

[0056] Please refer to Figures 2 to 5 and Figure 9 , in some alternative embodiments, the jaw assembly 50 includes a plurality of clamping jaws 51. The number of clamping jaws 51 is at least two, and the number of clamping jaws 51 can be any suitable number such as two, three, four, five, six, etc. Each clamping jaw 51 cooperates with at least one locking member 60. Specifically, the plurality of clamping jaws 51 are equidistantly distributed along the circumferential direction of the receiving cavity 102 in the receiving cavity 102. Each clamping jaw 51 has a cooperating portion that is wedge-shapedly matched with the sealing assembly. After the push-pull ring 40 is pushed so that the push-pull ring 40 moves from the first position to the second position, the locking member 60 unlocks the jaw assembly 50. Under the elastic action of the second elastic member 33, the sealing assembly 30 continues to act, so that the plurality of clamping jaws 51 initially rotate a first preset angle in the receiving cavity 102, and then slide to the first preset position. After the plurality of clamping jaws 51 slide a certain distance, when the clamping jaws 51 contact the rotating inclined surface 27, they gradually rotate and open outward. And the clamping jaws 51 can also rotate on the rotating inclined surface 27 with the arc surface 516 as the fulcrum. Among them, the angle at which the clamping jaws 51 rotate on the rotating inclined surface 27 is the second preset angle.

[0057] Please refer to Figures 2 to 5 and Figure 9, in some alternative embodiments, the mating portion on the clamping jaw 51 is a driving inclined surface 514 that is in wedge-shaped mating with the sealing assembly 30, and the mating portion on the sealing assembly 30 is a pushing inclined surface 311 that is in wedge-shaped mating with the driving inclined surface 514. By pushing the push-pull ring 40 to disengage the pushing portion 41 from the locking member 60, the jaw assembly 50 can be unlocked, the locking pressure of the jaw assembly 50 acting on the sealing assembly 30 is withdrawn, and the sealing assembly 30 is also unlocked. It can be understood that when the locking member 60 locks the jaw assembly 50, due to the driving inclined surface 514 acting on the pushing inclined surface 311, the sealing assembly 30 elastically contracts within the accommodating cavity 102. When the jaw assembly 50 is unlocked, the sealing assembly 30 is elastically reset under the pushing of the second elastic member 33. Furthermore, the pushing inclined surface 311 pushes the driving inclined surface 514, causing the plurality of clamping jaws 51 to tilt outward within the accommodating cavity 102 and abut against the inner wall of the accommodating cavity 102 to open by a first preset angle. The wedge-shaped mating of the driving inclined surface 514 and the pushing inclined surface 311 can not only elastically press the sealing assembly 30 during locking. It can also cause the sealing assembly 30 to push the jaw assembly 50 to rotate a certain angle within the accommodating cavity 102 when unlocked, so that the jaw assembly 50 axially slides and radially expands within the accommodating cavity 102 to abut against the inner wall of the accommodating cavity 102, that is, the plurality of clamping jaws 51 are pre-opened outward under the action of the sealing assembly 30.

[0058] Please refer to Figures 2 to 5 and Figure 9 , in some alternative embodiments, a second convex portion 513 is provided at one end of the clamping jaw 51, and the second convex portion 513 is located on one side of the clamping jaw 51. A protruding convex block 23 is provided in the accommodating cavity 102 of the socket housing 20. When the clamping jaw 51 slides within the accommodating cavity 102 until the second convex portion 513 is hooked on the convex block 23, and then under the continuous action of the sealing assembly 30, the clamping jaw 51 can continue to rotate a certain angle to open outward. The structure in which the second convex portion 513 cooperates with the convex block 23 has a certain amount of movement space to achieve the opening and closing actions while ensuring that the clamping jaw 51 does not come out of the convex block 23. On the other hand, a first convex portion 512 is provided on the clamping jaw 51, and the first convex portion 512 protrudes from the clamping jaw 51 in the direction close to the sealing assembly 30. A groove 312 that cooperates with the first convex portion 512 is provided on the sealing assembly 30. A clamping block 313 is provided at one end of the groove 312, and the other end of the groove 312 is a pushing portion 314. When installing the fluid connection plug, the fluid connection plug pushes the sealing assembly 30, causing the sealing assembly 30 to move until the clamping block 313 engages with the first convex portion 512, so as to first drive the clamping jaw 51 to close inward by a certain angle and continue to slide to a second preset position. At this time, the push-pull ring 40 automatically resets to push the locking member 60 to lock the clamping jaw 51, and the clamping jaw 51 closes inward to clamp the fluid connection plug, so that the fluid connection plug is stably installed within the fluid connection socket 100.

[0059] Please refer to Figures 2 to 5 and Figure 9 In some alternative embodiments, a pushing part 314 that cooperates with the first clamping protrusion 512 is provided at the other end of the groove body 312. The pushing part 314 can cooperate with the first clamping protrusion 512 to drive the jaw assembly 50 to adjust from the open state to the closed state when installing the fluid connection plug. At the same time, the pushing part 314 can also push the jaw assembly 50 to slide upward and open outward by a second preset angle when the jaw assembly 50 is open. Specifically, the pushing inclined surface 311 pushes the driving inclined surface 514 and can slide along the driving inclined surface 514 until the pushing part 314 acts on the first clamping protrusion 512. By the action of the pushing part 314 on the first clamping protrusion 512, the pushing inclined surface 311 is prevented from separating from the driving inclined surface 514, and the pushing part 314 drives the clamping jaw 51 to slide in the accommodating cavity 102 to the first preset position and makes the clamping jaw 51 open outward by a second preset angle. It can be understood that when the pushing inclined surface 311 pushes the driving inclined surface 514, the jaw assembly 50 moves obliquely upward to open a certain angle, that is, the above-mentioned first preset angle. Then, the clamping jaw 51 abuts against the inner wall of the accommodating cavity 102. At this time, the sealing assembly 30 continues to elastically push upward, and the pushing inclined surface 311 slides along the driving inclined surface 514 until the pushing part 314 contacts the first clamping protrusion 512. Furthermore, by the action of the pushing part 314 on the first clamping protrusion 512, the sealing assembly 30 drives the jaw assembly 50 to slide upward until the second clamping protrusion 513 is hooked on the protrusion 23. Among them, during the sliding process, when the arc surface 516 of the clamping jaw 51 contacts the rotating inclined surface 27, the clamping jaw 51 will also gradually tilt outward and open. When the second clamping protrusion 513 is hooked on the protrusion 23, the sealing assembly 30 continues to act, and the clamping jaw 51 rotates around the rotating inclined surface 27 by a certain angle with the arc surface 516 as the fulcrum to open outward further. The structure in which the second clamping protrusion 513 cooperates with the protrusion 23 has a certain movement space to realize the opening and closing actions while ensuring that the clamping jaw 51 does not come out of the protrusion 23.

[0060] Please refer to Figures 2 to 5 and Figure 7 and Figure 9, in some alternative embodiments, an arc surface 516 protrudes from the clamping jaw 51. On the other hand, the top end of the socket housing 20 has a tapered structure with a gradually increasing cross-sectional area from outside to inside. That is, the upper end of the socket housing 20 where the mounting hole 22 is provided has a tapered structure with a gradually increasing cross-sectional area, so as to form a rotating inclined surface 27 in the second inner cavity 21 that cooperates with the arc surface 516. The rotating inclined surface 27 is inclined so that the end of the socket housing 20 has a structure that is wider outside and narrower inside. Specifically, the pushing part 314 pushes the clamping jaw 51, and the clamping jaw 51 slides along the rotating inclined surface 27 with the arc surface 516 as a fulcrum to gradually expand outwards. At the same time, the pushing part 314 continuously pushes the clamping jaw 51 so that the clamping jaw 51 continues to rotate with the arc surface 516 as a fulcrum, and the sum of the rotation angles on the rotating inclined surface 27 is the second preset angle.

[0061] Please refer to Figures 2 to 5 and Figure 9 , in some alternative embodiments, a locking groove 511 that is recessed inward is provided on the clamping jaw 51, and the locking groove 511 is an arc-shaped groove. The locking member 60 has a spherical structure. Exemplarily, the locking member 60 can be balls made of various materials. Preferably, the locking member 60 is a steel ball. When one side of the locking member 60 is located in the locking groove 511, the clamping jaw 51 can be locked so that the clamping jaw 51 is in a locked state. By pushing the push-pull ring 40, the top-pushing part 41 of the push-pull ring 40 is separated from the locking member 60, and the locking member 60 is separated from the locking groove 511 to be in an unlocked state.

[0062] Please refer to Figures 2 to 5 and Figure 8 , in some alternative embodiments, a top-pushing part 41 protrudes from the push-pull ring 40. Among them, when the push-pull ring 40 is in the first position, the top-pushing part 41 pushes the locking member 60 so that one side of the locking member 60 enters the locking groove 511, thereby being able to lock the clamping jaw 51. At this time, the jaw assembly 50 is in a closed and locked state to be able to clamp the fluid connection plug. By pushing the push-pull ring 40, the push-pull ring 40 moves from the first position to the second position, so that the top-pushing part 41 moves away from the locking member 60, enabling the locking member 60 to disengage from the locking groove 511 and the clamping jaw 51 to be unlocked.

[0063] Please refer to Figures 2 to 5 and Figure 8, in some alternative embodiments, a groove 43 for accommodating the locking member 60 is provided at one end of the pushing portion 41. When the push-pull ring 40 is pushed to the second position, the sealing assembly 30 pushes the jaw assembly 50 to squeeze the locking member 60 out of the locking groove 511 and place the locking member 60 in the groove 43. At this time, the locking member 60 can restrict the push-pull ring 40 from resetting to the first position, so that the push-pull ring 40 remains in the second position. On the other hand, a transition inclined surface 42 is provided between the pushing portion 41 and the groove 43. By means of the transition inclined surface 42, the pushing portion 41 can move away from the locking member 60, or by means of the transition inclined surface 42, the pushing portion 41 can move and push the locking member 60. The provision of the transition inclined surface 42 enables the pushing portion 41 to slowly disengage from the locking member 60 or slowly push the locking member 60, that is, the transition inclined surface 42 facilitates the movement of the push-pull ring 40 between the first position and the second position.

[0064] Please refer to Figures 2 to 5 and Figure 8 , in some alternative embodiments, a first elastic member 70 is provided between the push-pull ring 40 and the socket housing 20. An inwardly recessed portion 24 is provided on the base housing, and the first elastic member 70 is sleeved and installed in the recessed portion 24. One end of the first elastic member 70 abuts against the abutting portion 25 on the socket housing 20, and the other end of the first elastic member 70 abuts against the pushing portion 41. The first elastic member 70 always has a tendency to drive the push-pull ring 40 to reset. At the same time, a snap ring 80 is also provided between the push-pull ring 40 and the socket housing 20. The snap ring 80 is located at one end of the socket housing 20 away from the first elastic member 70, and the snap ring 80 can prevent the push-pull ring 40 from detaching from the socket housing 20. It can be understood that when the push-pull ring 40 is pushed and pulled, the first elastic member 70 is compressed, and the first elastic member 70 always has a tendency to drive the push-pull ring 40 to reset. In this embodiment, the pushing portion 41 can be located in the middle of the push-pull ring 40, and the transition inclined surface 42 is provided at one end of the pushing portion 41 away from the first elastic member 70. When the push-pull ring 40 is pushed and pulled, the pushing portion 41 can better disengage from the locking member 60 through the transition inclined surface 42. When the push-pull ring 40 resets, the transition inclined surface 42 can also better enable the pushing portion 41 to reset to push the locking member 60.

[0065] Please refer to Figures 2 to 4, in some alternative embodiments, the sealing assembly 30 includes a sealing rod 31, a waterproof ring 32, a second elastic member 33, and a sealing ring 34. Among them, one end of the sealing rod 31 is provided with a hollow first cavity, and one end of the second elastic member 33 abuts against the socket base housing 10 within the accommodating cavity 102. The other end of the second elastic member 33 is located within the first cavity and abuts against the inner wall of the first cavity. On the other hand, the other end of the sealing rod 31 is provided with a second cavity, and the waterproof ring 32 is installed within the second cavity. The waterproof ring 32 can cooperate with the fluid connection plug. A sealing ring 34 is provided between the sealing rod 31 and the socket base housing 10, and the number of sealing rings 34 is at least one. Through the sealing ring 34, the sealing rod 31 and the first inner cavity 11 of the socket base housing 10 are sealed. In this embodiment, the pushing inclined surface 311, the block 313, and the material pushing portion 314 are all located on the sealing rod 31.

[0066] Please refer to Figures 2 to 5 , Figure 9 and Figures 11 to 16 , in some alternative embodiments, each clamping claw 51 is provided with a hook portion 515 that cooperates with the fluid connection plug. The shape of the hook portion 515 can be changed according to the specific structure of the fluid connection plug so as to be adaptable to different fluid connection plugs. The fluid connection socket 100 can change the mouth diameter or shape of the jaw assembly 50 according to the usage situation to lock various plugs of different specifications. Specifically, the fluid connection plug includes a plug housing 200, and a engaging portion 201 that cooperates with the hook portion 515 is provided on the plug housing 200. The hook portion 515 is engaged with the engaging portion 201 so that the fluid connection plug is stably installed within the fluid connection socket 100, and the versatility is strong. On the other hand, a sealing member is provided on the connection surface between the fluid connection socket 100 and the fluid connection plug, and the fluid connection socket 100 and the fluid connection plug are sealed and connected by means of the sealing member. As Figures 11 to 16 shown, the structure of the plug housing 200 is different. Correspondingly, the specific structure of the jaw assembly 50 can be adjusted adaptively, but the specific structural configuration remains unchanged. The engaging portion 201, the engaging portion 201', and the engaging portion 201'' can all cooperate with the fluid connection socket 100 of the present invention, and only the specific structure of the jaw assembly 50 needs to be adjusted adaptively. Of course, the engaging portion 201 includes Figures 14 to 16 these several structures, but is not limited to these several structures.

[0067] As Figures 2 to 5As shown, in the non-inserted state: after the push-pull ring 40 is pushed to release the clamping claw assembly 50, the sealing assembly 30 is also released, and the sealing rod 31 pushes the driving inclined surface 514 of the clamping claw 51 upward through the pushing inclined surface 311, so that the clamping claw 51 is pre-rotated to a certain angle to abut against the inner wall of the accommodating cavity 102. The pushing inclined surface 311 continuously applies a pushing force to the driving inclined surface 514 obliquely upward, so that the sealing rod 31 slides upward along the driving inclined surface 514. When the pushing portion 314 of the sealing rod 31 contacts the first clamping protrusion 512, the sealing rod 31 applies a force to the first clamping protrusion 512. The two forces interact with each other, so that the clamping claw 51 slides upward, and rotates a certain angle in the socket housing 20 with the arc surface 516 as a fulcrum, so that the clamping claw 51 tilts outward and opens. The protrusion 23 on the inner side of the socket housing 20 cooperates with the second clamping protrusion 513 of the clamping claw 51, which can ensure that the clamping claw 51 opens but does not leave the working environment.

[0068] like Figures 2 to 5 and Figures 11 to 13 As shown, when plugged in: when the fluid connection plug is aligned with the waterproof ring 32 and plugged downward, the sealing rod 31 is pushed downward, and the block 313 on the sealing rod 31 contacts the first clamping protrusion 512 of the clamping claw 51 and pushes the clamping claw 51 to move downward. At the same time, the clamping claw 51 shrinks inwardly by a certain angle. When the clamping claw 51 moves downward to the second preset position, the locking groove 511 on the clamping claw 51 is connected with the mounting hole 22 of the socket housing 20. At this time, the push-pull ring 40 gradually resets, and the transition slope 42 applies a horizontal inward thrust to the locking member 60 to push the locking member 60 toward the locking groove 511 of the clamping claw 51. The fluid connection plug continues to apply pressure, the sealing rod 31 and the clamping claw 51 continue to move downward, and drive the locking member 60 to rotate in the mounting hole 22. When the push-pull ring 40 transitions from the transition slope 42 to the push portion 41, the locking member 60 is completely locked, and the locking member 60 applies an inward extrusion force to the clamping claw 51, so that the clamping claw 51 tilts inward, and the clamping claw 51 rotates and closes with the push slope 311 of the sealing rod 31 as a fulcrum to be in a closed state. At the same time, the hook portion 515 on the clamping claw 51 is engaged with the engaging portion 201 on the plug housing 200 to lock the fluid connection plug, and achieve the plugged state.

[0069] During plugging and unplugging: pull the push-pull ring 40 downward, and when the push-pull ring 40 reaches a predetermined position, the clamping claw 51 pushes the locking member 60 outward, and the locking member 60 enters the groove 43 at the upper end of the push-pull ring 40. At this time, the displacement restriction of the clamping claw 51 by the locking member 60 is released, and the second spring and the sealing rod 31 press the clamping claw 51 upward to form an open state, and the locking force of the clamping claw 51 on the fluid connection plug is released. The upward squeezing force of the sealing rod 31 can immediately eject the fluid connection plug, and the self-locking structure is released.

[0070] like Figures 1 to 16As shown in the figure, the fluid connector 1000 of the present invention includes a fluid connection socket 100 and a fluid connection plug. The fluid connection socket 100 includes a socket base housing 10, a socket housing 20, a sealing assembly 30, a push-pull ring 40, and a jaw assembly 50. The socket housing 20 is connected to the socket base housing 10 to form a receiving cavity 102. The sealing assembly 30 is elastically installed in the receiving cavity 102 and can axially move in the receiving cavity 102. The push-pull ring 40 is elastically sleeved on the socket housing 20 and can move between a first axial position and a second axial position. And the push-pull ring 40 always has a tendency to reset, so as to automatically drive the locking member 60 to lock the jaw assembly 50 in the locked state. The jaw assembly 50 is movably installed in the receiving cavity 102 and can be switched between a locked state and an unlocked state, and both the jaw assembly 50 and the sealing assembly 30 have mating parts that can be wedge-fitted with each other. The sealing assembly 30 and the jaw assembly 50 can be wedge-fitted so that the jaw assembly 50 can lock the sealing assembly 30, or the movement of the sealing assembly 30 can drive the jaw assembly 50 to move. Among them, a plurality of mounting holes 22 are axially penetrated through the socket housing 20 along its circumference, and the jaw assembly 50 is provided with a locking groove 511 corresponding to the mounting hole 22 for accommodating the locking member 60. When the push-pull ring 40 moves to the first position, it can push the locking member 60 into the locking groove 511 to lock the jaw assembly 50 in the locked state. By pushing the push-pull ring 40 to the second position, the sealing assembly 30 pushes the jaw assembly 50 to axially move and radially expand to the unlocked state. And it drives the locking member 60 to radially move so that the push-pull ring 40 remains in the second position. When the locking member 60 is in the locking groove 511, it can lock the jaw assembly 50. When the locking member 60 disengages from the locking groove 511 and is located in the groove 43, it can make the push-pull ring 40 remain in the second position. Specifically, the jaw assembly 50 includes a plurality of clamping jaws 51, and each clamping jaw 51 is provided with a hook portion 515 that cooperates with the fluid connection plug. The fluid connection plug is provided with a engaging portion 201 that cooperates with the hook portion 515. The hook portion 515 is engaged with the engaging portion 201 so that the fluid connection plug is stably installed in the fluid connection socket 100. According to the structure of the fluid connection plug, the jaw assembly 50 adapted thereto can be replaced, and different structures of plug and socket can be used according to the actual use situation, and the product has strong versatility. At the same time, the fluid connection socket 100 can change the mouth diameter or shape of the jaw assembly 50 according to the use situation to lock a variety of different specifications of plugs. The fluid connection plug is installed in the jaw assembly 50 and pushes the sealing assembly 30, so that the sealing assembly 30 drives the jaw assembly 50 to axially move and radially close to clamp the fluid connection plug. The push-pull ring 40 automatically resets to lock the jaw assembly 50, so that the jaw assembly 50 keeps clamping the fluid connection plug. The fluid connector 1000 of the present invention includes a fluid connection socket 100 and a fluid connection plug. The structure of the fluid connection socket 100 is ingenious, easy to operate, and can be adjusted to adapt to a variety of different fluid connection plugs.The fluid connector 1000 of the present invention adopts a steel ball locking structure, making the connection stable and reliable, suitable for environments such as impact and vibration. Secondly, a seal is provided on the end face of the connection between the fluid connection plug and the fluid connection socket 100 to ensure that the connection surface is always sealed. Thirdly, the fluid connector 1000 of the present invention has a compact structure, with the smallest volume ensuring the maximum flow rate and achieving the minimum pressure drop. In addition, the internal structure design of the fluid connector 1000 makes the fluid connector 1000 have high mechanical strength during insertion, and can be applied to a larger mechanical stress environment. Moreover, the automatic locking function of the locking structure of the fluid connection socket 100 eliminates the need to pull the pull ring 40 backward. After pushing in the fluid connection plug, the connection can be locked, making the operation easy and convenient.

[0071] The above-disclosed are only the preferred examples of the present invention, and the scope of the rights of the present invention cannot be limited thereby. Therefore, all equivalent changes made according to the claims of the present invention fall within the scope covered by the present invention.

Claims

1. A fluid connection socket, characterized in that, Comprising: A housing having a receiving cavity; A sealing assembly elastically mounted in the receiving cavity and axially movable in the receiving cavity; A push-pull ring elastically sleeved on the housing and movable between a first axial position and a second axial position; A jaw assembly movably mounted in the receiving cavity and switchable between a locked state and an unlocked state, and both the jaw assembly and the sealing assembly have mating portions that can be wedge-fitted with each other; the jaw assembly includes a plurality of clamping jaws, the plurality of clamping jaws are circumferentially equidistantly distributed in the receiving cavity and each clamping jaw has a mating portion that is wedge-fitted with the sealing assembly; the mating portion on the clamping jaw is a driving inclined surface that is wedge-fitted with the sealing assembly, and the mating portion on the sealing assembly is a pushing inclined surface that is wedge-fitted with the driving inclined surface, and the driving inclined surface acts on the pushing inclined surface to press the locked jaw assembly against the sealing assembly; a first convex portion is provided on the clamping jaw, and the first convex portion protrudes from the clamping jaw in a direction close to the sealing assembly; a second convex portion is also provided on the clamping jaw, and the second convex portion protrudes from the clamping jaw in a direction close to the housing; Wherein, a plurality of mounting holes are axially penetratingly formed in the housing along its circumference, locking members are accommodated in the mounting holes, and the jaw assembly is provided with locking grooves corresponding to the mounting holes for accommodating the locking members, and when the push-pull ring moves to the first position, it can push the locking members into the locking grooves to lock the jaw assembly in the locked state; The push-pull ring always has a tendency to reset so as to automatically drive the locking members to lock the jaw assembly in the locked state; by pushing the push-pull ring to the second position, the sealing assembly pushes the jaw assembly to axially move and radially expand to the unlocked state, and drives the locking members to radially move so that the push-pull ring is held in the second position.

2. The fluid connection socket according to claim 1, characterized in that, By pushing the push-pull ring to the second position, the pushing inclined surface pushes against the driving inclined surface and slides along the driving inclined surface, so that the plurality of clamping jaws slide in the receiving cavity and expand outward by a first preset angle.

3. The fluid connection socket according to claim 1, wherein, A material pushing portion cooperating with the first convex portion is provided on the sealing assembly, the pushing inclined surface pushes against the driving inclined surface and slides along the driving inclined surface until the material pushing portion acts on the first convex portion, and the material pushing portion drives the clamping jaws to slide in the receiving cavity to a first preset position, and the plurality of clamping jaws expand outward by a second preset angle to be in the unlocked state.

4. The fluid connection socket according to claim 3, wherein A block cooperating with the first convex portion is also provided on the sealing assembly, and when the sealing assembly is stressed to axially move in the receiving cavity until the block is engaged with the first convex portion, the clamping jaws are driven to rotate inward by a second preset angle and slide to a second preset position, and the push-pull ring automatically moves to the first position and pushes the locking members into the locking grooves to lock the jaw assembly in the locked state.

5. The fluid connection socket according to claim 1, characterized in that A protruding block is provided in the receiving cavity of the housing, and the sealing assembly drives the clamping jaws to slide in the receiving cavity until the second convex portion is hooked on the block.

6. The fluid connection socket according to claim 4, wherein The clamping jaws are provided with protruding arc surfaces, and the top end of the housing is provided with a rotating inclined surface that cooperates with the arc surfaces; the pushing part pushes the plurality of clamping jaws to move axially, and causes the plurality of clamping jaws to slide along the rotating inclined surface with the arc surfaces as fulcrums and gradually open outwards.

7. The fluid connection socket according to claim 1, characterized in that, The pushing and pulling ring is provided with a pushing part protruding therein. When the pushing and pulling ring moves to the first position, the pushing part pushes the locking part into the locking groove to lock the jaw assembly in the locked state; the pushing and pulling ring is pushed to the second position so that the pushing part disengages from the locking part.

8. The fluid connection socket according to claim 7, characterized in that, One end of the pushing part is provided with a groove for accommodating the locking part. When the pushing and pulling ring is pushed to the second position, the sealing assembly pushes the jaw assembly to squeeze the locking part out of the locking groove and makes the locking part located in the groove, so that the pushing and pulling ring is kept in the second position.

9. The fluid connection socket according to claim 8, characterized in that, A transition inclined surface is provided between the pushing part and the groove, so that the pushing and pulling ring can move between the first position and the second position by means of the transition inclined surface.

10. The fluid connection socket according to claim 1, characterized in that, A first elastic member is provided between the pushing and pulling ring and the housing. One end of the first elastic member abuts against the housing, and the other end abuts against the pushing and pulling ring. The first elastic member always has a tendency to drive the pushing and pulling ring to reset.

11. The fluid connection socket according to claim 1, characterized in that, The sealing assembly includes a sealing rod, a waterproof ring and a second elastic member. One end of the sealing rod is provided with a first cavity. One end of the second elastic member is located in the first cavity and abuts against the inner wall of the first cavity. The other end of the second elastic member abuts against the housing in the accommodating cavity; the other end of the sealing rod is provided with a second cavity, and the waterproof ring is installed in the second cavity.

12. The fluid connection socket according to claim 1, characterized in that, The housing includes a socket housing and a socket base housing. One end of the socket base housing is connected to the socket housing to form the accommodating cavity; the other end of the socket base housing is provided with an internal thread mounting part, or an external thread mounting part, or a flange connection assembly, or a partition connection assembly, or a clamp connection assembly.

13. The fluid connection socket according to claim 1, characterized in that, One end of the mounting hole close to the jaw assembly has a diameter smaller than the diameter of the locking part.

14. The fluid connection socket according to claim 1, characterized in that, The locking part has a spherical structure.

15. A fluid connector, comprising a fluid connection plug, characterized in that, It further includes a fluid connection socket as described in any one of claims 1-14. In the unlocked state of the sealing assembly, when the fluid connection plug is inserted into the fluid connection socket, it pushes the sealing assembly, drives the jaw assembly to move axially and close radially, the jaw assembly clamps the fluid connection plug, the pushing and pulling ring automatically resets to the first position and pushes the locking part into the locking groove to lock the jaw assembly, so that the jaw assembly keeps clamping the fluid connection plug; by pushing the pushing and pulling ring to the second position, the jaw assembly can be unlocked, so that the fluid connection plug pops out of the fluid connection socket.

16. The fluid connector according to claim 15, wherein, The jaw assembly includes a plurality of clamping jaws, and each clamping jaw is provided with a hook portion that cooperates with the fluid connection plug. The fluid connection plug is provided with an engaging portion that cooperates with the hook portion, and the hook portion is engaged with the engaging portion to fix the fluid connection plug.

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