Socket connector capable of being directly pulled out for unlocking and fluid connector assembly

Abstract

The invention relates to the field of fluid connectors, in particular to a socket connector capable of being directly pulled out to be unlocked and a fluid connector assembly. The socket connector capable of being directly pulled and unlocked is used for solving the technical problem that an existing socket connector with a steel ball locking structure cannot be directly pulled. The fluid connector assembly is used for solving the technical problem that an existing fluid connector assembly is not beneficial for a robot to execute pull-out operation. The directly-unlockable socket connector comprises a socket main body. The socket body comprises an insertion structure, and at least part of the insertion structure is provided with a steel ball locking structure. The socket connector further comprises a fixing shell, and the socket body is movably installed in the fixing shell in the plugging direction. The locking sleeve of the steel ball locking structure is provided with a first stop surface, the fixed shell is provided with a second stop surface, and the first stop surface and the second stop surface can be in direct or indirect stop fit when the socket connector and the plug connector are pulled out, so that the steel ball locking structure is unlocked when the socket main body is pulled out and moves.

Description

Technical Field

[0001] The present invention belongs to the field of fluid connectors, and in particular relates to a socket connector that can be directly pulled out and unlocked, and a fluid connector assembly. Background Art

[0002] Fluid connector assemblies are crucial components of liquid cooling systems, enabling rapid connection and disconnection of fluid pathways, such as pipes and cold plates. However, existing fluid connector assemblies generally lack a locking mechanism. Once the fluid connector assembly is properly engaged, the plug and receptacle connectors lack the necessary locking mechanism to ensure a secure connection.

[0003] In response to the above-mentioned problems, the Chinese utility model patent with authorization announcement number CN212430113U discloses a new direct-push locking structure. This structure adds a steel ball locking structure to the fluid connector assembly, which specifically includes a connecting screw sleeve mounted on the plug connector housing and a front row of steel balls and a rear row of steel balls arranged between the connecting screw sleeve and the plug connector housing. When the socket connector and the plug connector are plugged in, the inclined surface on the socket connector pushes the front row of steel balls radially outward. At this time, the front row of steel balls simultaneously pushes the connecting screw sleeve to the unlocking position, so that the rear row of steel balls can enter between the connecting screw sleeve and the plug connector housing and cooperate with the other inclined surface of the connecting screw sleeve. After the rear row of steel balls are in place, the connecting screw sleeve resets and keeps the rear row of steel balls in the current position, so that the plug connector and the socket connector can be stably locked and kept in a mutually plugged state. Although this structure ensures the stability of the plug connector and the socket connector through the steel ball locking structure, it will make it impossible to pull out the plug connector and the socket connector directly when unplugging. It is necessary to push the connecting screw sleeve to the unlocking position before unplugging the plug connector; this will complicate the unplugging operation of the plug connector and the socket connector, which is not conducive to using a robot to perform the unplugging operation of the plug connector and the socket connector. Summary of the Invention

[0004] The object of the present invention is to provide a socket connector that can be directly pulled out and unlocked, so as to solve the technical problem that the existing socket connector with a steel ball locking structure must first push the locking sleeve to unlock when being pulled out, and cannot be directly pulled out; the object of the present invention is also to provide a fluid connector assembly to solve the technical problem that the existing fluid connector assembly cannot be directly pulled out, which is not conducive to the robot to perform the pulling out operation.

[0005] The present invention adopts the following technical solutions: A socket connector that can be directly pulled out and unlocked comprises a socket body; the socket body comprises an interlocking structure for interlocking with an adapting plug connector, wherein at least part of the interlocking structure is provided with a steel ball locking structure; the socket connector further comprises a fixed shell, and the socket body is movably mounted in the fixed shell in the direction of insertion; a first stop surface is provided on the locking sleeve of the steel ball locking structure, and a second stop surface is provided on the fixed shell, the first stop surface and the second stop surface can directly or indirectly stop and cooperate when the socket connector and the plug connector are pulled out, so as to unlock the steel ball locking structure when the adapting plug connector is pulled out and drives the socket body to move.

[0006] Furthermore, there are more than two plug-in structures equipped with steel ball locking structures and arranged on the same circumference; the socket body also includes a stopping ring that can be engaged with the second stopping surface, and the stopping ring is arranged on the outside of each locking sleeve and is engaged with the first stopping surface on each locking sleeve, so that the first stopping surface and the second stopping surface are indirectly engaged when the socket connector and the plug connector are unplugged.

[0007] Furthermore, the locking sleeve includes a locking sleeve body and a stop nut, and a mounting ring is provided on the locking sleeve body to form an installation space between the mounting ring and the stop nut; the stop ring is clamped in the installation space.

[0008] Furthermore, the outer wall surface of the locking sleeve and the inner ring surface of the stop ring are arranged in an inscribed manner.

[0009] Furthermore, the fixed shell includes a fixed cylinder and a limiting flange, and the cylinder end of the fixed cylinder facing the direction of unplugging the socket connector has an inward closing, so that the end surface of the inward closing facing away from the direction of unplugging the socket connector serves as a second stop surface, and the limiting flange is fixedly installed on the other cylinder end of the fixed cylinder to prevent the socket body from falling out of the fixed shell along this end.

[0010] Furthermore, the socket connector further comprises a return spring, which is arranged between the fixing shell and the socket body to reset the socket body after being pulled out.

[0011] Furthermore, the plug-in structure equipped with the steel ball locking structure is a guide sleeve for guiding and matching with a guide post on a matching plug connector.

[0012] Furthermore, the interlocking structure also includes a main interlocking structure for connecting the medium transmission path. The number of the main interlocking structures is the same as that of the guide sleeves, and they are evenly staggered in the circumferential direction relative to the guide sleeves.

[0013] Beneficial effects: The present invention improves the existing socket connector, and specifically proposes a socket connector that can be directly pulled out and unlocked. The socket connector that can be directly pulled out and unlocked includes a socket body, and the socket body includes a plug-in structure for plugging in with the matching plug connector. At least a portion of the aforementioned plug-in structure is provided with a steel ball locking structure so as to lock and cooperate with the corresponding plug-in section on the matching plug connector. The key point of the present invention is that the socket connector also includes a fixed shell. The socket body is movably mounted in the fixed shell in the plug-in direction so that the socket body can float in the plug-in direction when the plug connector and the socket connector are plugged in or unplugged. A first stop surface is provided on the locking sleeve of the steel ball locking structure, and a second stop surface is provided on the fixed shell. The first stop surface and the second stop surface can directly or indirectly stop and cooperate when the socket connector and the plug connector are unplugged. When the mating plug connector is removed from the receptacle connector, it drives the receptacle body to move in the removal direction. At this point, the locking sleeve, under direct or indirect engagement of the first and second stop surfaces, moves relative to the receptacle body to an unlocked position, unlocking the steel ball locking structure and allowing the mating plug connector to be removed smoothly. While ensuring a locked and retained state after mating, the aforementioned structure allows for direct, direct removal of the plug connector from the receptacle connector, avoiding the redundant operation of first unlocking and then removing the connector, thereby greatly facilitating operation.

[0014] A fluid connector assembly includes a plug connector and a socket connector that can be directly pulled out and unlocked, the socket connector that can be directly pulled out and unlocked includes a socket body; the socket body includes an interlocking structure for interlocking with an adapting plug connector, wherein at least part of the interlocking structure is provided with a steel ball locking structure; the socket connector also includes a fixed shell, and the socket body is movably mounted in the fixed shell in the plugging direction; the locking sleeve of the steel ball locking structure is provided with a first stop surface, and the fixed shell is provided with a second stop surface, the first stop surface and the second stop surface can directly or indirectly stop and cooperate when the socket connector and the plug connector are unplugged, so as to unlock the steel ball locking structure when the adapting plug connector is unplugged and drives the socket body to move.

[0015] Furthermore, there are more than two plug-in structures equipped with steel ball locking structures and arranged on the same circumference; the socket body also includes a stopping ring that can be engaged with the second stopping surface, and the stopping ring is arranged on the outside of each locking sleeve and is engaged with the first stopping surface on each locking sleeve, so that the first stopping surface and the second stopping surface are indirectly engaged when the socket connector and the plug connector are unplugged.

[0016] Furthermore, the locking sleeve includes a locking sleeve body and a stop nut, and a mounting ring is provided on the locking sleeve body to form an installation space between the mounting ring and the stop nut; the stop ring is clamped in the installation space.

[0017] Furthermore, the outer wall surface of the locking sleeve and the inner ring surface of the stop ring are arranged in an inscribed manner.

[0018] Furthermore, the fixed shell includes a fixed cylinder and a limiting flange, and the cylinder end of the fixed cylinder facing the direction of unplugging the socket connector has an inward closing, so that the end surface of the inward closing facing away from the direction of unplugging the socket connector serves as a second stop surface, and the limiting flange is fixedly installed on the other cylinder end of the fixed cylinder to prevent the socket body from falling out of the fixed shell along this end.

[0019] Furthermore, the socket connector further comprises a return spring, which is arranged between the fixing shell and the socket body to reset the socket body after being pulled out.

[0020] Furthermore, the plug-in structure equipped with the steel ball locking structure is a guide sleeve for guiding and matching with a guide post on a matching plug connector.

[0021] Furthermore, the interlocking structure also includes a main interlocking structure for connecting the medium transmission path. The number of the main interlocking structures is the same as that of the guide sleeves, and they are evenly staggered in the circumferential direction relative to the guide sleeves.

[0022] Beneficial effects: The present invention improves the existing fluid connector assembly. The fluid connector assembly described in the present invention includes a specific plug connector and a socket connector that can be directly pulled out and unlocked. The socket connector that can be directly pulled out and unlocked includes a socket body, and the socket body includes a plug-in structure for plugging in with the matching plug connector. At least a portion of the aforementioned plug-in structure is provided with a steel ball locking structure so as to lock and cooperate with the corresponding plug-in section on the matching plug connector. The key point of the present invention is that the socket connector also includes a fixed shell. The socket body is movably mounted in the fixed shell in the plug-in direction so that the socket body can float in the plug-in direction when the plug connector and the socket connector are plugged in or unplugged. A first stop surface is provided on the locking sleeve of the steel ball locking structure, and a second stop surface is provided on the fixed shell. The first stop surface and the second stop surface can directly or indirectly stop and cooperate when the socket connector and the plug connector are unplugged. When the matching plug connector is unplugged from the socket connector, it can drive the socket body to move in the unplugging direction. At this time, the locking sleeve moves to the unlocking position relative to the socket body under the direct or indirect stop cooperation of the first stop surface and the second stop surface to unlock the steel ball locking structure, thereby allowing the matching plug connector to be unplugged smoothly. The above structure, while meeting the requirement of locking and holding the plug connector and the socket connector after being plugged in, allows the plug connector and the socket connector to be directly unplugged when unplugging, avoiding the redundant operation of first unlocking and then unplugging. Therefore, the fluid connector assembly described in the present invention greatly facilitates the unplugging operation and is conducive to the use of robots to perform unplugging operations in intelligent scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the one-piece connector assembly of the present invention in the plug connector and the socket connector plugged in state; Figure 2 for Figure 1 a front view of the structure shown; Figure 3 for Figure 2 sectional view of Figure 4 is a schematic structural diagram of a socket connector; Figure 5 for Figure 4 sectional view of Figure 6 is a schematic structural diagram of a plug connector; Figure 7 Schematic diagram of the guide plug-in structure on the socket connector.

[0024] In the figure: 1. socket connector; 10. socket main plug-in structure; 11. socket guide plug-in structure; 110. guide sleeve; 111. locking sleeve; 112. front row steel balls; 113. rear row steel balls; 114. locking spring; 1110. stop nut; 1111. locking sleeve; 1112. installation space; 1113. first inclined surface; 1114. second inclined surface; 1115. locking surface; 120. Fixed cylinder; 121, limiting flange; 122, floating main plate; 123, floating splint; 13, stop ring; 1200, inward closing; 1220, reset spring; 1223, floating return spring; 1221, guide groove; 2, plug connector; 20, main plug insertion structure; 21, guide column; 210, ring groove; 211, large diameter end; 212, guide slope; 213, locking slope. DETAILED DESCRIPTION

[0025] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0026] The principle of the fluid connector assembly of the present invention is as follows: A fluid connector assembly, specifically comprising a plug connector 2 and a socket connector 1 that can be directly pulled out and unlocked. Figure 1-7As shown, the receptacle connector 1 with direct-pull unlocking includes a receptacle body, which includes an interlocking structure for interlocking with a mating plug connector 2. At least a portion of the interlocking structure is equipped with a steel ball locking structure to lock with a corresponding plug section on the mating plug connector 2. The steel ball locking structure can refer to the steel ball locking structure disclosed in Chinese Utility Model Patent Publication No. CN212430113U. Specifically, it includes a locking sleeve 111, a locking spring 114, a front row of steel balls 112 that drive the locking sleeve 111 toward the unlocked position during interlocking, and a rear row of steel balls 113 that unlock and lock as the locking sleeve 111 slides. When the plug connector 2 is mated with the receptacle connector 1, the plug connector 2 pushes the front row of steel balls 112, causing the locking sleeve 111 to move toward the unlocked position of the unlockable steel ball locking structure. At this point, the rear row of steel balls 113 are unlocked from the locked position and can move out of the way of the plug connector 2. After the plug is plugged into place, the locking sleeve 111 is reset under the action of the locking spring 114, and drives the rear row of steel balls 113 to re-engage in the locking position, so that the rear row of steel balls 113 cooperate with the plug connector 2 to prevent the plug connector 2 from being pulled out. The aforementioned plug-in structure specifically includes a socket guide plug-in structure 11 for guiding the plug-in, and a socket main plug-in structure 10 for realizing the conduction of the medium circuit. The steel ball locking structure can be provided on the socket guide plug-in structure 11, or on the socket main plug-in structure 10, or a steel ball locking structure can be provided on both the socket guide plug-in structure 11 and the socket main plug-in structure 10. The structural form and working principle of the plug main plug-in structure 20 and the socket main plug-in structure 10 are both prior art and will not be elaborated herein.

[0027] The key point of the present invention is that the socket connector 1 also includes a fixed shell. The socket body is movably installed in the fixed shell in the plug-in direction, so that the socket body can float in the plug-in direction when the plug connector 2 is plugged in or unplugged from the socket connector 1. A first stop surface is provided on the locking sleeve 111, and a second stop surface is provided on the fixed shell. The first stop surface and the second stop surface can directly or indirectly stop and cooperate when the socket connector 1 and the plug connector 2 are unplugged. When the matching plug connector 2 is unplugged from the socket connector 1, it can drive the socket body to move in the unplugging direction. At this time, the locking sleeve 111 moves to the unlocking position relative to the socket body under the direct or indirect stopping cooperation of the first stop surface and the second stop surface to achieve unlocking, thereby allowing the matching plug connector 2 to be smoothly unplugged.

[0028] While ensuring that the plug connector 2 and receptacle connector 1 remain locked and secure after insertion, the aforementioned structure allows for direct disconnection of the plug connector 2 from the receptacle connector 1, avoiding the redundant operation of first unlocking and then disconnecting. Consequently, the fluid connector assembly of the present invention greatly facilitates disconnection operations, facilitating the use of robots in intelligent scenarios.

[0029] Based on the above-mentioned principle, the embodiment 1 of the fluid connector assembly of the present invention is as follows: A fluid connector assembly specifically includes a plug connector 2 and a socket connector 1 that can be directly pulled out and unlocked. The socket connector 1 that can be directly pulled out and unlocked includes a socket body, and the socket body includes an interlocking structure for interlocking with the matching plug connector 2. At least a portion of the aforementioned interlocking structure is provided with a steel ball locking structure so as to lock and cooperate with the corresponding plug section on the matching plug connector 2. The socket connector 1 also includes a fixed shell. The socket body is movably mounted in the fixed shell in the plugging direction so that the socket body can float in the plugging direction when the plug connector 2 is plugged in or unplugged from the socket connector 1. A first stop surface is provided on the locking sleeve 111, and a second stop surface is provided on the fixed shell. The first stop surface and the second stop surface can directly or indirectly stop and cooperate when the socket connector 1 is unplugged from the plug connector 2. When the mating plug connector 2 is pulled out of the receptacle connector 1, it can drive the receptacle body to move in the pulling-out direction. At this time, the locking sleeve 111 moves relative to the receptacle body to the unlocking position under the cooperation of the first stop surface and the second stop surface, thereby unlocking the mating plug connector 2. This arrangement allows the plug connector 2 to be pulled out directly from the receptacle connector 1, avoiding the redundant operation of first unlocking and then pulling out.

[0030] Specifically, in this embodiment, the interlocking structure equipped with the steel ball locking structure can be the aforementioned socket guide interlocking structure or the aforementioned socket main interlocking structure 10. When the steel ball locking structure is provided on the socket guide interlocking structure, the socket guide interlocking structure preferably adopts a guide post 21 and a guide sleeve 110 structure. The guide sleeve 110 is provided on the socket connector 1, and the locking sleeve 111 is sleeved on the outer circumference of the guide sleeve 110. The inner wall of the locking sleeve 111 is axially provided with a first inclined surface 1113, a second inclined surface 1114, and a locking surface 1115. The first inclined surface 1113 and the second inclined surface 1114 are spaced apart, and the locking surface 1115 intersects the second inclined surface 1114. A front row of steel balls 112 are provided between the locking sleeve 111 and the guide sleeve 110 at a position corresponding to the first inclined surface 1113, and a rear row of steel balls 113 are provided at a position corresponding to the locking surface 1115. A locking spring 114 is further provided between the locking sleeve 111 and the guide sleeve 110 to maintain the locking sleeve 111 in a locked position relative to the guide sleeve 110. When the guide sleeve 110 is in the locked position, the first inclined surface 1113 faces the front row of steel balls 112, thereby retaining the front row of steel balls 112 in corresponding holes in the wall of the guide sleeve 110. At this time, the front row of steel balls 112 are partially exposed in the guide sleeve 110. The locking surface 1115 faces the rear row of steel balls 113, thereby retaining the rear row of steel balls 113 in corresponding holes in the wall of the guide sleeve 110. At this time, the rear row of steel balls 113 are also partially exposed in the guide sleeve 110. The guide post 21, which mates with the guide sleeve 110, has an annular groove 210 in its center, forming a large-diameter end 211 at its distal end. The distal end of the large-diameter end 211, facing the insertion direction, has a guiding bevel 212. The other end (a side wall of the annular groove 210) has a locking bevel 213. When the guide post 21 is inserted into the guide sleeve 110, the guiding bevel 212 first contacts the front-row steel balls 112. Under the force of the insertion, the guiding bevel 212 pushes the front-row steel balls 112 radially outward along the guide sleeve 110. The movement of the front-row steel balls 112 acts on the first bevel 1113, forcing the locking sleeve 111 to overcome the elastic force of the locking spring 114 and move toward the unlocked position. At this point, the locking surface 1115 moves relative to the rear-row steel balls 113, bringing the second bevel 1114, which intersects the locking surface 1115, closer to the rear-row steel balls 113. As the guide post 21 continues to be inserted, the rear row of steel balls 113 leave the locking surface 1115 and contact the second inclined surface 1114. Under the action of the guide inclined surface 212 of the guide post 21, they continue to push the locking sleeve 111 until the large diameter end 211 of the guide post 21 axially passes over the rear row of steel balls 113 and is inserted into place. At this point, the front row of steel balls 112 and the rear row of steel balls 113 are no longer squeezed by the guide post 21, causing the locking spring 114 to be instantly released and push the locking sleeve 111 back to its original position. Under the guidance of the first inclined surface 1113 and the second inclined surface 1114, the front row of steel balls 112 and the rear row of steel balls 113 are both reset to their original positions. At this time, the rear row of steel balls 113 and the aforementioned locking inclined surface 213 are blocked and engaged to lock the guide post 21.And because the locking surface 1115 is a cylindrical surface, the rear row of steel balls 113 can be reliably maintained in the current position under vibration, impact and other environments, and will not move radially. When unlocking, since the rear row of steel balls 113 and the locking bevel 213 are blocked, the pulling out action of the guide column 21 will drive the socket body to move synchronously. At this time, the first blocking surface on the locking sleeve 111 and the second blocking surface on the fixed shell directly or indirectly block and cooperate to prevent the locking sleeve 111 from moving synchronously with the socket body. At this time, the locking sleeve 111 moves to the unlocking position relative to the socket body. Under the guidance of the locking bevel 213, the rear row of steel balls 113 and the front row of steel balls 112 successively move radially to a position where they can avoid the large diameter end 211 of the guide column 21, so that the guide column 21 can be smoothly pulled out of the socket connector 1.

[0031] When the steel ball locking structure is provided on the main socket plug-in structure 10, the main socket plug-in structure 10 and the steel ball locking structure can be referred to as the novel direct-push locking structure disclosed in Chinese Utility Model Patent No. CN212430113U, and will not be described in detail here. Based on this and in combination with the foregoing, it is readily apparent that the steel ball locking structure can also be provided on both the main socket plug-in structure 10 and the socket guide plug-in structure. The specific configuration is as described above and will not be described in detail here.

[0032] Because the receptacle's guide plug-in structure is simple, the steel ball locking structure, when installed on the guide plug-in structure, does not affect its internal functional space. Furthermore, the guide plug-in structure is smaller than the main plug-in structure, and installing the steel ball locking structure on the guide plug-in structure also facilitates the miniaturization of the fluid connector assembly.

[0033] The key point of this embodiment is that there are two or more plug-in structures equipped with a steel ball locking structure and they are arranged on the same circumference. Specifically, when the steel ball locking structure is provided on the socket guide plug-in structure, the socket guide plug-in structure and the steel ball locking structure can be as follows: Figure 3As shown, there are three of them and they are arranged on the same circumference. Four, five or even more can also be arranged. It should be emphasized here that the specific number of the socket guide plug-in structure and the steel ball locking structure can be determined according to actual needs, and the aforementioned three, four, five and other quantifiers are all examples. When the steel ball locking structure is provided on the socket main plug-in structure 10, or when the steel ball locking structure is provided on both the socket guide plug-in structure and the socket main plug-in structure 10, reference can be made to the aforementioned settings, which will not be repeated here. On this basis, the socket body can also include a stop ring 13 that stops and cooperates with the second stop surface. The stop ring 13 is sleeved on the outside of each locking sleeve 111, and stops and cooperates with the first stop surface on each locking sleeve 111, so that the first stop surface and the second stop surface are indirectly stopped and cooperated when the socket connector 1 and the plug connector 2 are unplugged. Such a setting can synchronously stop all the locking sleeves 111 of the plug-in structure equipped with the steel ball locking structure through the stopping ring 13, ensuring that the socket connector 1 with multiple plug-in structures can be synchronously pulled out when performing the plug-in structure removal operation. Of course, in scenarios where there are special requirements for the position of the plug-in structure, the plug-in structure equipped with the steel ball locking structure can also be arranged in other ways, such as in an array arrangement or in a scattered arrangement. On this basis, a mounting hole can be opened at the position corresponding to the plug-in structure on the fixed shell. An annular bulge is provided on the locking sleeve 111 of the plug-in structure. After the plug-in structure passes through the fixed shell from the mounting hole, the end face of the annular bulge facing the fixed shell is the first stopping surface, and the edge of the hole of the fixed shell facing the annular bulge is the second stopping surface. The first locking surface 1115 on each locking sleeve 111 respectively cooperates with the second stopping surface when the fluid connector assembly is pulled out, so as to achieve the aforementioned technical effect of straight pulling.

[0034] On this basis, the locking sleeve 111 can include a locking sleeve body 1111 and a stop nut 1110. The locking sleeve body 1111 is provided with a mounting ring to form an installation space 1112 between the mounting ring and the stop nut 1110. The stop ring 13 is clamped in the installation space 1112. This arrangement can ensure that the mounting ring is stably maintained in the axial direction of the plug-in structure and will not move axially relative to the plug-in structure, thereby ensuring that the synchronization of the plug-in structure during the removal operation of the socket connector 1 with a multi-plug structure will not be affected by the movement of the stop ring 13. In addition, because the stop ring 13 is axially fixed relative to each locking sleeve 111, each locking sleeve 111 can also be axially aligned under the linkage of the stop ring 13. This ensures that the position of each locking sleeve 111 is axially synchronized and clear when the fluid connector assembly is removed. At the same time, the above structure is easy to install and can effectively improve the efficiency of the fluid connector assembly during assembly.

[0035] Furthermore, the outer wall surface of the locking sleeve 111 and the inner ring surface of the stop ring 13 can be arranged in an inscribed manner. This can prevent the stop ring 13 from moving radially relative to the locking sleeves 111. This can avoid the problem of the stop ring 13 and part of the locking sleeves 111 having a small stop fit area or completely losing the stop fit due to the radial movement of the stop ring 13 relative to the locking sleeves 111. Based on the aforementioned axial limitation of the stop ring 13, the above structure can ensure that the stop ring 13 can be stably maintained in a clear position, which is conducive to the positioning reference of the stop ring 13 during design, processing and installation.

[0036] Based on the above technical solution, the number of the socket main plug-in structures 10 and the guide sleeves 110 can be made consistent, and they can be evenly staggered in the circumferential direction relative to the guide sleeves 110. For example, when three guide sleeves 110 are used, the number of the socket main plug-in structures 10 is also three. At this time, the guide sleeves 110 and the socket main plug-in structures 10 are evenly arranged along the same circumference and at an angle of 120 degrees, and the guide sleeves 110 and any adjacent socket main plug-in structures 10 are arranged at an angle of 60 degrees. When four guide sleeves 110 are used, the number of the socket main plug-in structures 10 is also four. At this time, the guide sleeves 110 and the socket main plug-in structures 10 are evenly arranged along the same circumference and at an angle of 90 degrees, and the guide sleeves 110 and any adjacent socket main plug-in structures 10 are arranged at an angle of 45 degrees. This arrangement allows the main socket plug-in structures 10 and guide sleeves 110 to be evenly staggered in the circumferential direction, making the distribution of the main socket plug-in structures 10 and guide sleeves 110 more compact. This, in turn, minimizes space on the plug connector 2 and the socket connector 1. This facilitates both the miniaturization of the plug connector 2 and the socket connector 1 and the provision of more plug-in structures on the plug connector 2 and the socket connector 1. It should be emphasized that the specific number of main socket plug-in structures 10 and guide sleeves 110 can be determined based on actual needs, with the aforementioned three and four equivalent quantifiers being examples. Furthermore, in scenarios where the position of the socket plug-in structures requires special attention, the plug-in structures equipped with the steel ball locking structure can be arranged in other configurations, such as in an array or in a scattered arrangement. Furthermore, the number of main socket plug-in structures 10 and guide sleeves 110 does not need to be consistent; it can be determined based on specific needs. For example, when the main socket plug-in structures 10 are arranged in an array of three rows and three columns, a guide sleeve 110 can be provided at each of the four corners of the array.

[0037] Based on the above-mentioned principle and embodiment 1, embodiment 2 of the fluid connector assembly of the present invention is as follows: Compared with embodiment 1, the key point of this embodiment is that the fixed shell includes a fixed cylinder 120 and a limiting flange 121. The cylinder end of the fixed cylinder 120 facing the direction of unplugging the socket connector 1 has an inward closing 1200, so that the end face of the inward closing 1200 facing away from the direction of unplugging the socket connector 1 serves as a second stop face. The limiting flange 121 is fixedly mounted on the other cylinder end of the fixed cylinder 120 to prevent the socket body from escaping the fixed shell along this end. Specifically, in this embodiment, the limiting flange 121 specifically adopts a cylindrical structure. Annular wing plates are respectively provided at both ends. A fastener mounting hole is provided on the annular wing plate at one end facing the fixed cylinder 120 so that the limiting flange 121 and the fixed cylinder 120 can be fastened and installed as a whole by fasteners; the annular wing plate at the other end is used for fixed installation with the equipment. The socket body includes a floating seat and multiple main plug-in structures and multiple guide sleeves 110 fixedly mounted on the floating seat. The pipeline connected to the main plug-in structure extends to the outside through the cylindrical cavity of the limiting flange 121.

[0038] The floating seat includes an annular floating main plate 122 with a guide key on its outer edge and a guide groove 1221 on the inner wall of the fixed cylinder 120. The floating main plate 122 slides in a guided manner with the fixed cylinder 120 in the axial direction. A return spring 1220 is sandwiched between the floating main plate 122 and the inwardly constricted opening 1200. The floating main plate 122 has an annular sliding engagement plate extending radially inward. The floating seat also includes floating clamping plates 123 on either side of the floating main plate 122. The two floating clamping plates 123 are located on either side of the sliding engagement plate and engage with the side surfaces of the sliding engagement plate. The two floating clamping plates 123 are fixedly connected in the annular space of the sliding engagement plate using screws, bolts, or rivets, ensuring a constant front-to-back spacing. The two floating clamping plates 123 are clamped on either side of the sliding engagement plate and can float radially relative to the sliding engagement plate and twist about a longitudinal axis, thereby achieving floating of the socket body mounted on the floating seat.

[0039] A floating return spring 1223 is connected between the floating main plate 122 and the floating splint 123. There are multiple floating return springs 1223 and they are dispersed at different positions in the circumferential direction. Each floating return spring 1223 is in the same plane, and the center of the floating splint 123 is in the polygon surrounded by each floating return spring 1223. In this way, when the floating splint 123 floats radially or twists around the axis extending forward and backward, each floating return spring 1223 can provide elastic force to restore the floating splint 123.

[0040] In this embodiment, the floating return spring 1223 is located in the interval space between the two floating splints 123, and one end is connected to the floating main plate 122, and the other end is connected to the floating splint 123. Specifically, a spring connecting pin is connected between the two floating splints 123, and the inner end of the floating return spring 1223 is connected to the spring connecting pin.

[0041] After installation, the floating seat of the socket body is retained in the space between the fixed flange and the inwardly constricted opening 1200 of the fixed cylinder 120, preventing it from slipping out of the fixed shell from either end. During the unplugging operation, the end surface of the inwardly constricted opening 1200 facing away from the unplugging direction of the socket connector 1 acts as a second stop surface, directly engaging with the first stop surface on the aforementioned locking sleeve 111, or indirectly engaging with the stop ring 13, to achieve the aforementioned technical purpose of direct unplugging. This structure is easy to install and form, effectively reducing processing and installation costs; at the same time, most of the socket body can be wrapped in the fixed shell, thereby providing good protection for the socket body.

[0042] It is easy to imagine that the aforementioned fixed shell can also adopt a cylindrical open box structure, specifically including a bottom surface and a cylindrical circumferential side surface. Its upper end surface is open and is fastened to the aforementioned limiting flange 121 by fasteners. A through hole is provided on the bottom surface of the open box body corresponding to the position of the plug-in structure. The socket body is installed in the cavity of the open box body, and the plug-in structure passes through the through hole. An annular bulge is provided on the locking sleeve 111 of the guide sleeve 110, so that the end face of the annular bulge facing the through hole serves as a first stop surface. The hole edge of the through hole corresponding to the annular bulge serves as a second stop surface, so as to cooperate with the first stop surface when the fluid connector assembly is pulled out, thereby achieving the technical effect of the aforementioned straight pull unlocking.

[0043] A return spring 1220 is disposed between the fixed housing and the socket body to reset the socket body after removal. This eliminates the need to manually reset the socket body to a suitable position each time the socket connector 1 and the plug connector 2 are repeatedly plugged in and out, thereby improving the efficiency of plugging the plug connector 2 and the socket connector 1. In intelligent scenarios, this arrangement also reduces the workload of the robot in aligning the plug connector 2 and the socket connector 1, thereby facilitating the robot's insertion and removal of the connectors. In certain cost-constrained scenarios, or where repeated plugging and removal is not necessary, manual operation can be used instead of the return spring 1220 to reset the socket body.

[0044] The parts not mentioned in this embodiment remain the same as those in embodiment 1.

[0045] Implementation of the socket connector capable of being directly pulled out and unlocked in the present invention: The embodiment of the directly-pullable and unlockable socket connector of the present invention is consistent with the directly-pullable and unlockable socket connector described in embodiment 1 of the fluid connector assembly of the present invention, and therefore will not be described in detail here.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be based on the claims. Any equivalent structural changes made using the description and drawings of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A socket connector capable of being directly pulled out and unlocked, comprising a socket body; the socket body comprising an interlocking structure for interlocking with an adapting plug connector (2), wherein at least a portion of the interlocking structure is provided with a steel ball locking structure; characterized in that: The socket connector also includes a fixed shell, and the socket body is movably mounted in the fixed shell in the plugging direction; a first stop surface is provided on the locking sleeve (111) of the steel ball locking structure, and a second stop surface is provided on the fixed shell, and the first stop surface and the second stop surface can directly or indirectly stop and cooperate when the socket connector and the plug connector (2) are pulled out, so as to unlock the steel ball locking structure when the matching plug connector (2) is pulled out and drives the socket body to move.

2. The socket connector capable of being directly pulled out and unlocked according to claim 1, wherein: There are more than two plug-in structures equipped with a steel ball locking structure and arranged on the same circumference; the socket body also includes a stop ring (13) that can be engaged with the second stop surface, and the stop ring (13) is sleeved on the outside of each locking sleeve (111) and is engaged with the first stop surface on each locking sleeve (111), so that the first stop surface and the second stop surface are indirectly engaged when the socket connector and the plug connector (2) are disconnected.

3. The socket connector capable of being directly pulled out and unlocked according to claim 2, wherein: The locking sleeve (111) comprises a locking sleeve (111) body and a stop nut (1110); a mounting ring is provided on the locking sleeve (111) body so that a mounting space (1112) is formed between the mounting ring and the stop nut (1110); and the stop ring (13) is clamped in the mounting space (1112).

4. The socket connector capable of being directly pulled out and unlocked according to claim 2, wherein: The outer wall surface of the locking sleeve (111) and the inner ring surface of the stop ring (13) are arranged in an inscribed manner.

5. The socket connector capable of being directly pulled out and unlocked according to claim 1, wherein: The fixed shell comprises a fixed cylinder (120) and a limiting flange (121); the cylinder end of the fixed cylinder (120) facing the direction of the socket connector being pulled out has an inward opening (1200), so that the end surface of the inward opening (1200) facing away from the direction of the socket connector being pulled out serves as a second stop surface; the limiting flange (121) is fixedly mounted on the other cylinder end of the fixed cylinder (120) to prevent the socket body from being pulled out of the fixed shell along this end.

6. The directly-pullable and unlockable socket connector according to any one of claims 1 to 5, characterized in that: The socket connector further comprises a return spring (1220), wherein the return spring (1220) is arranged between the fixed shell and the socket body so as to return the socket body to its original position after being pulled out.

7. The socket connector capable of being directly pulled out and unlocked according to claim 2, wherein: The plug-in structure equipped with a steel ball locking structure is a guide sleeve (110) used for guiding and matching with a guide column (21) on an adapted plug connector (2).

8. The socket connector capable of being directly pulled out and unlocked according to claim 7, wherein: The interlocking structure further comprises a main interlocking structure for connecting a medium transmission passage, the main interlocking structures being consistent in number with the guide sleeves (110) and being evenly staggered in the circumferential direction relative to the guide sleeves (110).

9. A fluid connector assembly, comprising a plug connector (2) and a socket connector (1) that can be directly pulled out and unlocked, characterized in that: The directly-pullable and unlockable socket connector (1) is the directly-pullable and unlockable socket connector (1) according to any one of claims 1 to 8.

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