Self-locking quick ball valve joint and joint system

Abstract

The invention relates to a self-locking quick ball valve connector and a connector system, and relates to the technical field of connector connection, and the self-locking quick ball valve connector comprises a connector valve body, a valve element and a valve rod assembly. The connector valve body is provided with a connecting end, a control containing cavity, a self-locking hole and an interlocking hole. The valve rod assembly comprises a rotating part and a control part, the control part is arranged in the control containing cavity, and a self-locking groove is formed in the control part; the self-locking assembly comprises a self-locking rod piece and a self-locking spring which are located in the self-locking hole, and a self-locking ball located in the interlocking hole. The self-locking rod piece is provided with an unlocking ring groove and a self-locking structure; when the self-locking groove in the control part rotates to be right opposite to the interlocking hole, the self-locking structure drives the self-locking ball to be clamped into the self-locking groove, and locking is achieved. And during unlocking, the self-locking ball enters the unlocking ring groove, so that the self-locking ball is separated from the self-locking groove, and the locking is released. The method has the effect of improving the safety of connector connection.

Description

Technical Field

[0001] This application relates to the field of connector connections, and in particular to a self-locking quick ball valve connector and connector system. Background Technology

[0002] In fluid piping systems, ball valve fittings are widely used as important opening and closing control components in pipeline connections and flow control scenarios. Especially in the context of the rapid development of high-tech industries such as industrial automation, data centers, new energy, and semiconductor manufacturing, flow control transmission pipelines are an indispensable part.

[0003] Traditional joint connections all employ fixed connection methods, connecting two pipe ends via flanges or welding. While this traditional method offers strong sealing, it lacks ease of disassembly and reassembly, making it difficult to adapt to rapidly evolving connection requirements. Some early quick-connect couplings, under high pressure and high-frequency insertion / removal, are prone to misoperation of the valve stem, leading to accidental valve opening and posing a safety hazard. Furthermore, in complex operating conditions involving temperature variations and the transmission of multiple chemical media, leaks and other safety issues can easily occur, affecting not only the coupling's performance but also posing safety risks to the entire pipeline system.

[0004] In view of the aforementioned technologies, the inventors believe there is a need to provide a self-locking quick ball valve connector that is easy to plug in and unplug and has better safety performance. Summary of the Invention

[0005] To improve the safety of the connection, this application provides a self-locking quick ball valve connector and connector system.

[0006] Firstly, the self-locking quick-connect ball valve connector provided in this application adopts the following technical solution: A self-locking quick-release ball valve connector includes: a connector valve body having a connecting end; a valve core rotatably mounted within the connector valve body; a valve stem assembly rotatably mounted within the connector valve body and connected to the valve core, used to drive the opening and closing of the valve core; the valve stem assembly has a control part and a mounting part; the connector valve body also has a control cavity for the control part to rotate, and has a first locking groove; the self-locking quick-release ball valve connector further includes a handle assembly and a self-locking assembly; the handle assembly includes a locking pin penetrating the mounting part, an eccentric handle connected to the top of the locking pin, and a handle mounted between the locking pin and the mounting part to drive the locking pin to always face the connector. The valve body has an elastic element for movement; the self-locking assembly includes a self-locking rod movable in the docking direction and a movable self-locking ball; the valve body has an interlocking hole connecting the control cavity and the movement space of the self-locking rod, and the self-locking ball is accommodated in the interlocking hole; the control part has a self-locking groove for the self-locking ball to engage; wherein, the handle assembly and the self-locking assembly are configured such that: when the valve core is closed, the self-locking rod engages with the self-locking groove through the self-locking ball, and the locking pin can be inserted into the first locking groove to restrict the rotation of the handle assembly and the valve rod assembly; when the self-locking assembly is unlocked, the handle assembly can drive the valve rod assembly to rotate.

[0007] By adopting the above technical solution, and by setting up the cooperation of the handle assembly, the self-locking assembly, and the control unit, in the closed state of the valve core, the control unit cooperates with the self-locking rod and the self-locking ball to achieve mechanical locking of the rotation of the valve stem assembly. At the same time, the addition of a locking pin and an eccentric handle in the handle assembly allows the locking pin to be inserted into the first locking groove, achieving locking of the eccentric handle and the valve body of the connector. This reduces the accidental opening of the valve stem assembly in the closed state of the valve and improves the safety and stability of the self-locking quick ball valve connector.

[0008] Preferably, the connector valve body has a self-locking hole parallel to the docking direction and for arranging the self-locking assembly at the connecting end, and an interlocking hole connecting the control cavity and the self-locking hole; the self-locking assembly further includes a self-locking spring arranged inside the self-locking rod and driving the self-locking rod to always have a tendency to move towards the docking direction; the control part has a self-locking groove for the self-locking ball to be engaged; the self-locking groove includes a first locking groove and a second locking groove distributed circumferentially; the self-locking rod has an unlocking ring groove for accommodating the self-locking ball so that the self-locking ball is separated from the self-locking groove, and a self-locking structure located inside the unlocking ring groove for driving the self-locking ball to be engaged in the self-locking groove; when the valve core is closed, the self-locking groove and the interlocking hole are directly opposite each other.

[0009] By adopting the above technical solution, the self-locking assembly also includes a self-locking spring that is linked to the control unit of the valve stem assembly. By switching the self-locking ball between the self-locking groove of the control unit and the unlocking ring groove of the self-locking rod, the switching between self-locking and unlocking after the self-locking quick ball valve connector is connected is achieved. When the self-locking groove and the interlocking hole are aligned, the self-locking structure on the self-locking rod pushes the self-locking ball into the self-locking groove of the control unit, locking the control unit and the valve body. At this time, the valve core is closed, reducing the risk of accidental valve core opening due to accidental rotation of the control unit and improving the connection safety of the self-locking quick ball valve connector. When the self-locking quick ball valve connector is connected, the self-locking rod is pushed into the self-locking hole by another connecting end, and the unlocking ring groove is aligned with the interlocking hole. At this time, rotating the valve stem assembly can drive the self-locking ball into the unlocking ring groove, releasing the lock between the control unit and the valve body. The rotating part drives the valve core to rotate, opening the valve core. It can reduce the probability of fluid leakage caused by incomplete connection or accidental contact with the valve stem assembly when two self-locking quick ball valve connectors are connected to each other, improve the safety of preventing misoperation and the sealing reliability of the connector connection process, and improve the stability and safety of the self-locking quick ball valve connector connection.

[0010] Preferably, the valve body has a support portion that supports the mounting portion; the support portion also has a second locking groove for the locking pin to be inserted; when the self-locking ball is placed in the unlocking ring groove, the eccentric handle drives the valve stem assembly to rotate; when the self-locking ball is placed in the second locking groove, the locking pin is inserted into the second locking groove.

[0011] By adopting the above technical solution, a second locking groove is provided on the support part, mechanically linking the self-locking state with the position of the eccentric handle after the valve is opened. When the self-locking ball is placed in the unlocking ring groove, the lock between the eccentric handle and the support part is released, allowing the eccentric handle to rotate, thereby driving the rotation of the valve stem assembly and valve core. When the valve is opened, when the self-locking ball is placed in the second locking groove, the locking pin can be inserted into the second locking groove, directly restricting the rotation of the eccentric handle, forming a double lock. This effectively reduces the possibility of accidental valve closure due to accidental contact, significantly improving the safety of the system.

[0012] Preferably, an eccentric shaft is installed at the end of the eccentric handle; the locking pin has a drive through hole for the eccentric shaft to pass through; the eccentric shaft cooperates with the drive through hole so that the swing of the eccentric handle can drive the locking pin to move axially, so as to lock or unlock the locking pin with the first locking groove or the second locking groove.

[0013] By adopting the above technical solution, a structure is used in which an eccentric handle and an eccentric rotating shaft work together to drive the locking pin. The eccentric principle is used to convert the rotation of the eccentric handle into the linear displacement of the locking pin. This allows the operator to generate enough force to disengage the locking pin from the locking groove simply by turning the handle. This improves the stability of the locking, reduces the operational requirements, and makes the locking process more convenient.

[0014] Preferably, it also includes an interlocking assembly; the connector valve body has an interlocking outlet hole and an interlocking inlet hole parallel to the docking direction; the interlocking assembly includes an interlocking member movably installed in the interlocking outlet hole; an interlocking drive structure is provided between the control unit and the interlocking member; the control unit drives the interlocking member to extend and retract in the interlocking outlet hole through the interlocking drive structure; the interlocking member on one connector valve body can pass into the interlocking inlet hole of another connector valve body.

[0015] By adopting the above technical solution and designing interlock components, interlock outlet holes, and interlock inlet holes, the interlock component of one self-locking quick ball valve connector can be inserted into the interlock inlet hole of another self-locking quick ball valve connector. This enables the series interlock function between the two ball valve connectors, improves the correctness of the pipeline connection and the stability of the connection between the two ball valve connectors in the connected state, reduces the probability of leakage, and improves the safety of the connector connection.

[0016] Preferably, the valve body has a transmission lock hole that connects the interlock outlet and the control cavity; the interlock drive structure includes interlock grooves spaced apart along the length of the interlock member and interlock protrusions circumferentially disposed on the control part around the rotation axis of the valve core; the interlock protrusions and the interlock grooves engage in the transmission lock hole.

[0017] By adopting the above technical solution, interlocking protrusions are set on the control unit, and interlocking grooves are set on the interlocking components. Through the meshing structure of the interlocking protrusions and interlocking grooves in the transmission lock hole, the movement of the control unit rotating the valve core is directly converted into the extension and retraction movement of the interlocking components. This gear and rack transmission method has a simple structure and precise transmission, which improves the synchronization between the interlocking action and the valve opening and closing state, thereby improving the stability and sealing effect of the self-locking quick ball valve joint connection and improving the safety of use.

[0018] Preferably, it includes a port sealing assembly; the port sealing assembly includes a sealing ring body and a first sealing ring flap and a second sealing ring flap respectively disposed on the inner wall of the sealing ring body; the ends of the first sealing ring flap and the second sealing ring flap are both arranged to be outwardly inclined to both sides of the sealing ring body; the connector valve body has a port sealing ring groove for the first sealing ring flap to be inserted and an anti-dislodgement protrusion is provided on the groove edge of the port sealing ring groove; a compression sealing cavity is formed between the first sealing ring flap and the second sealing ring flap.

[0019] By adopting the above technical solution and setting up a port sealing assembly, which includes a structure with an outwardly expanding and inclined first and second sealing ring petals and a compression sealing cavity, the sealing ring petals deform due to the compression of the connecting ends during the installation and connection of the two self-locking quick ball valve joints. This causes them to conform to the groove wall of the port sealing ring, improving the sealing effect. When fluid flows into the compression sealing cavity, it exerts a compressive force on the first and second sealing ring petals, pushing them against the groove wall of the port sealing ring and further improving the sealing effect. The inclusion of an anti-detachment protrusion ring reduces the risk of the sealing ring falling off. This structure not only improves static sealing performance but also accommodates certain port machining errors and axial displacement, reducing the probability of fluid leakage at the interface.

[0020] Preferably, it includes a valve core sealing assembly; the valve core sealing assembly includes a sealing ring body and a first sealing portion and a second sealing portion symmetrically disposed on both sides of the sealing ring body; the first sealing portion includes a first stationary lip and a first moving lip facing the valve core and a first extrusion groove located between the first stationary lip and the first moving lip; the second sealing portion includes a second stationary lip and a second moving lip facing the valve core and a second extrusion groove located between the second stationary lip and the second moving lip; the inner rings of the first moving lip and the second moving lip both abut against the outer wall of the valve core.

[0021] By adopting the above technical solution, the valve core sealing assembly employs a symmetrical double-lip structure, namely a first stationary lip and a first moving lip with a first compression groove, a second moving lip and a second stationary lip with a second compression groove. The first and second stationary lips provide an initial pre-tight seal, while the first and second moving lips, under fluid pressure, adhere tightly to the outer wall of the valve core, thus achieving a pressure-reinforced seal. The presence of the first and second compression grooves allows fluid to enter, enabling the sealing ring body to undergo deformation compensation under pressure, improving the dynamic sealing effect during valve core rotation, reducing the possibility of fluid leakage, and extending the service life of the valve core sealing assembly.

[0022] Preferably, the valve body has a valve core sealing ring groove for the sealing ring body to be embedded and installed; the outer ring wall of the first stationary lip and the outer ring wall of the second stationary lip are both in contact with the groove wall of the valve core sealing ring groove; the sealing ring body has a first annular surface facing the bottom of the valve core sealing ring groove; a first buffer cavity is formed between the first annular surface and the valve core sealing ring groove; the sealing ring body has a second annular surface facing the valve core; a second buffer cavity is formed between the second annular surface and the outer wall of the valve core.

[0023] By adopting the above technical solution, a first buffer cavity is set between the sealing ring body and the valve core sealing ring groove, and a second buffer cavity is formed between the sealing ring body and the outer wall of the valve core. This allows the first annular structure to provide space for deformation buffering of the sealing ring body. This not only reduces stress damage to the valve core sealing assembly during installation and under high-pressure conditions, improving the sealing effect of the seal, but also provides compensation space when temperature changes cause thermal expansion and contraction of materials, further improving the sealing effect of the valve core sealing assembly, reducing the possibility of fluid leakage, and enhancing connection safety.

[0024] Preferably, the connector valve body has at least two circumferentially arranged connecting protrusions at the connecting end, and a connecting baffle spaced apart from the connecting protrusions; a connecting groove is provided between the connecting baffle and the connecting end for the connecting protrusions to engage; the connecting baffle has a clearance groove spaced apart from the connecting groove and for the connecting protrusions to pass through. Wherein, at least two of the connecting protrusions are set to have different circumferential dimensions, and the circumferential dimensions of the clearance groove are set to correspond one-to-one with the connecting protrusions to form a misalignment prevention structure; The end of the connecting protrusion is provided with a radially outward protruding anti-detachment flange.

[0025] By adopting the above technical solution, a mating structure of circumferentially arranged connecting protrusions, connecting grooves, and clearance grooves is used at the connection end, and an anti-detachment flange is provided at the connecting protrusion, which facilitates the rapid alignment and snap-fit ​​connection of the self-locking quick ball valve connector. The clearance groove allows the connecting protrusion to be smoothly inserted into the groove during installation, while the anti-detachment flange reduces the risk of accidental disengagement after connection. Specifically, by setting the circumferential dimensions of at least two connecting protrusions to be different from each other, and ensuring that the circumferential dimensions of the clearance grooves correspond one-to-one with the connecting protrusions, a mating structure with anti-misalignment function is formed. This asymmetrical design effectively prevents operators from mating at the wrong angle or direction; only when the dimensions of the connecting protrusion and the clearance groove correspond one-to-one can they be smoothly inserted and rotated to lock, thereby avoiding the risk of leakage or connection failure due to incorrect mating and significantly improving the safety and reliability of the connector connection.

[0026] Preferably, the valve stem assembly includes a rotating part connected to the valve core and the control part; the joint valve body is provided with an adjustment hole for the rotating part to rotate; the rotating part is circumferentially provided with a rotary seal groove; the valve stem assembly includes a rotary seal ring installed in the rotary seal groove; the outer ring wall of the rotary seal ring abuts against the hole wall of the adjustment hole; the valve stem assembly further includes a valve stem fixing pin connecting the rotating part and the valve core; the valve stem fixing pin coincides with the rotation axis of the valve core; a sealing gasket is arranged between the valve stem fixing pin and the rotating part.

[0027] By adopting the above technical solution, a rotary seal ring is arranged between the rotating part and the adjustment hole, and a sealing gasket is additionally arranged between the valve stem fixing pin and the rotating part, forming a multiple sealing structure, which reduces the probability of leakage during the rotation of the rotating part of the valve stem. The rotary seal ring can reduce the leakage path of the fluid along the axial direction of the valve stem, while the sealing gasket reduces the leakage risk of the connecting parts on the rotating part of the valve stem, reduces the leakage probability of the valve stem assembly during rotation, and improves the sealing effect during the use of the overall self-locking quick ball valve joint.

[0028] In the second aspect, a self-locking quick ball valve joint system provided by the present application adopts the following technical solution: A self-locking quick ball valve joint system includes two self-locking quick ball valve joints as shown above, which are butted through the connecting ends and interlocked through an interlocking component.

[0029] By adopting the above technical solution, two self-locking quick ball valve joints are connected to form a self-locking quick ball valve joint system, which can not only achieve self-locking of the valve stem respectively, but also be locked联动 through the interlocking component, improving the safety at the pipeline connection point. Each ball valve joint itself has the self-locking function of the anti-misrotation valve stem assembly. Under the联动 of the interlocking component, the two ball valve joints must be in the connected state and unlocked simultaneously to be operated, improving the safety and connection standardization of the connection of the self-locking quick ball valve joint.

[0030] To sum up, the present application includes at least one of the following beneficial technical effects: A self-locking quick ball valve joint, through the mutual cooperation of a self-locking rod, a self-locking spring, a self-locking ball and a self-locking groove on the control part, only when the valve core rotates to the fully closed position, the self-locking groove of the control part will be aligned with the interlocking hole, and the self-locking structure on the self-locking rod can push the self-locking ball into the self-locking groove of the control part to实现 the locking of the control part and the joint valve body, restricting the rotation of the valve stem assembly and the valve core; the self-locking component is forcibly associated with the opening and closing state of the valve core, reducing the risk of the valve stem assembly being accidentally started or the ball valve joint being connected under pressure in the closed state of the valve, reducing the risk of fluid leakage, and being beneficial to improving the safety of the connection operation; It should be noted that there is an unclear expression "联动锁定" in the original text, and the above translation tries to give a reasonable expression according to the context. If there is a more accurate description, the translation can be adjusted accordingly.By setting up a handle assembly and an interlock assembly; the handle assembly includes an eccentric handle, a locking pin, and a first locking groove and a second locking groove located on the valve body of the connector. Inserting and disengaging the eccentric handle and the locking pin in the first locking groove enables double locking of the valve stem assembly in conjunction with the self-locking assembly when the valve core rotates to the fully closed position, thereby improving the stability and safety of the ball valve connector in the closed state; the interlock assembly includes an interlocking member, and the interlocking groove on the interlocking member cooperates with the interlocking protrusion on the control part of the valve stem assembly to directly convert the movement of the control part of the valve core rotation into the extension and retraction movement of the interlocking member, thereby improving the synchronization between the interlocking action and the valve opening and closing state, and improving the stability of the self-locking quick ball valve connector connection; By incorporating a port sealing assembly, a valve core sealing assembly, and rotating sealing rings and gaskets at the valve stem assembly, the port sealing assembly can adaptively tighten during connection. The valve core sealing assembly achieves self-reinforcing sealing under fluid pressure. The first and second buffer chambers enhance the adaptability and durability of material deformation, thereby improving the sealing effect and reducing the probability of leakage. Combined with the anti-detachment connection at the connection end and the sealing rings and gaskets at the valve stem assembly, a multi-layered, dynamic sealing system from the port and valve core to the valve stem is formed, improving the sealing effect and safety of the self-locking quick ball valve connector under various operating conditions such as high pressure and frequent insertion and removal. By setting connecting protrusions with different circumferential dimensions and corresponding clearance grooves at the connecting ends, a docking structure with error prevention function is formed. This asymmetrical design can effectively prevent operators from docking at the wrong angle or direction. Only when the connecting protrusions and clearance grooves are sized one-to-one can they be smoothly inserted and rotated to lock, thereby avoiding the risk of leakage or connection failure caused by incorrect docking and significantly improving the safety and reliability of the joint connection. A self-locking quick ball valve connector system is provided. By connecting two self-locking quick ball valve connectors to form a system, when the two self-locking quick ball valve connectors are in use, the interlocking component and the self-locking component work together to ensure that the connector connection must be in the same state before operation. This reduces the risk of liquid leakage caused by the automatic opening and closing of a single ball valve connector and improves the stability and safety of the ball valve connector during use. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the self-locking quick ball valve connector in Embodiment 1 of this application.

[0032] Figure 2 This is a cross-sectional schematic diagram of the self-locking quick ball valve connector in Embodiment 1 of this application.

[0033] Figure 3 This is a schematic diagram of the fit between the connector valve body and the valve core sealing assembly in Embodiment 1 of this application.

[0034] Figure 4 This is an exploded schematic diagram of the valve stem assembly in Embodiment 1 of this application.

[0035] Figure 5 This is a schematic diagram of the structure of the self-locking component and the interlocking component in Embodiment 1 of this application.

[0036] Figure 6 This is a structural schematic diagram of the self-locking rod in Embodiment 1 of this application.

[0037] Figure 7 This is a schematic diagram of the handle assembly in Embodiment 1 of this application.

[0038] Figure 8 This is a schematic diagram of the port sealing assembly in Embodiment 1 of this application.

[0039] Figure 9 This is a schematic diagram of the valve core sealing assembly in Embodiment 1 of this application.

[0040] Figure 10 This is a schematic diagram of the arrangement of the connecting protrusions in Embodiment 1 of this application.

[0041] Figure 11 This is a schematic diagram of the connection of the self-locking quick ball valve connector in Embodiment 2 of this application.

[0042] Explanation of reference numerals in the attached drawings: 1. Connector valve body; 11. Connecting end; 111. Self-locking hole; 112. Interlock outlet hole; 113. Interlock inlet hole; 114. Connecting protrusion; 1141. Anti-detachment flange; 115. Connecting baffle; 1151. Clearance groove; 116. Connecting groove; 12. Pipe joint; 121. Pipe sealing groove; 122. Pipe sealing ring; 123. Rotary anti-detachment groove; 124. Rotating steel ball; 13. Fluid passage; 14. Limiting anti-detachment groove; 141. Steel ball inlet; 142. Set screw; 15. Support part; 151. Adjustment 152. Control cavity; 153. Interlocking hole; 154. Transmission lock hole; 155. First locking groove; 156. Second locking groove; 16. Port sealing ring groove; 17. Anti-detachment protrusion ring; 18. Valve core sealing ring groove; 2. Valve core; 3. Valve stem assembly; 31. Rotating part; 311. Rotary sealing groove; 312. Rotary sealing ring; 32. Control part; 321. Self-locking groove; 3211. First locking groove; 3212. Second locking groove; 322. Interlocking protrusion; 33. Mounting part; 331. Limiting block; 332. Anti-detachment ring; 333. Anti-slip groove 34. Valve stem retaining pin; 35. Sealing gasket; 4. Self-locking assembly; 41. Self-locking rod; 411. Rod body; 4111. Unlocking ring groove; 4112. Self-locking structure; 41121. First locking surface; 41122. Second locking surface; 412. Rod end; 42. Self-locking spring; 43. Self-locking ball; 5. Interlocking assembly; 51. Interlocking component; 511. Interlocking groove; 6. Handle assembly; 61. Locking pin; 611. Reset ring; 612. Drive through hole; 62. Elastic element; 63. Eccentric handle; 631. Grip part; 63 11. Anti-slip ridges; 632. Eccentric part; 6321. Eccentric rotating shaft; 7. Port sealing assembly; 71. Sealing ring body; 72. First sealing ring petal; 73. Second sealing ring petal; 8. Valve core sealing assembly; 81. Sealing ring body; 811. First annular surface; 812. Second annular surface; 82. First sealing part; 821. First stationary lip; 822. First moving lip; 823. First extrusion groove; 83. Second sealing part; 831. Second stationary lip; 832. Second moving lip; 833. Second extrusion groove; 84. First buffer chamber; 85. Second buffer chamber. Detailed Implementation

[0043] The following is in conjunction with the appendix Figure 1-11 This application will be described in further detail. Example 1:

[0044] This application discloses a self-locking quick-connect ball valve connector. (Refer to...) Figure 1A quick-connect ball valve connector includes a connector valve body 1, a valve core 2 rotatably mounted within the connector valve body 1, and a valve stem assembly 3 rotatably mounted within the connector valve body 1 and connected to the valve core 2. The connector valve body 1 has a connecting end 11 for connecting to another self-locking quick-connect ball valve connector, and a pipe connector 12 for connecting to a pipeline is provided on the side opposite the connecting end 11. The connector valve body 1 has a fluid passage 13 for the valve core 2 to rotate and for fluid to pass through.

[0045] Reference Figure 2 and Figure 3 A rotary sealing structure is provided between the outer wall of the pipe joint 12 and the inner wall of the valve body 1. The rotary sealing structure includes two pipe sealing grooves 121 formed on the outer wall of the pipe joint 12, a rotary anti-detachment groove 123, two pipe sealing rings 122 respectively disposed in the two pipe sealing grooves 121, and multiple rotating steel balls 124 disposed in the rotary anti-detachment groove 123. A limiting anti-detachment groove 14 is circumferentially formed on the inner wall of the valve body 1 corresponding to the rotary anti-detachment groove 123 of the pipe joint 12, a steel ball inlet 141 located on the groove wall of the limiting anti-detachment groove 14 for inserting the rotating steel ball 124, and a set screw 142 for sealing the steel ball inlet 141. When the pipe joint 12 is inserted into the fluid channel 13, the outer walls of the two pipe sealing rings 122 abut against the channel wall of the fluid channel 13, improving the sealing effect and connection tightness. The rotating anti-detachment groove 123 and the limiting anti-detachment groove 14 are opposite to each other to form a cavity into which the rotating steel ball 124 can enter. Multiple rotating steel balls 124 are sequentially placed into the cavity from the steel ball inlet 141. Finally, the set screw 142 is placed into the steel ball inlet 141 and locked with the connector valve body 1 to reduce the probability of the rotating steel ball 124 detaching and facilitate free rotation during subsequent pipeline connection.

[0046] Reference Figure 2 and Figure 4The valve stem assembly 3 includes a rotating part 31 connected to the valve core 2, a control part 32 connected to the rotating part 31, and a mounting part 33 connected to the control part 32. The connector valve body 1 has an adjustment hole 151 for rotating the rotating part 31 of the valve stem assembly 3. The rotating part 31 of the valve stem assembly 3 has a circumferentially formed rotary sealing groove 311 and a rotary sealing ring 312 installed in the rotary sealing groove 311. When the rotating part 31 of the valve stem assembly 3 is installed in the adjustment hole 151, the outer ring wall of the rotary sealing ring 312 abuts against the hole wall of the adjustment hole 151, reducing the probability of fluid leakage along the axial direction of the rotating part 31 during rotation. The valve stem assembly 3 also includes a valve stem fixing pin 34 connecting the rotating part 31 and the valve core 2, and a sealing gasket 35 is provided between the valve stem fixing pin 34 and the rotating part 31. The valve stem retaining pin 34 coincides with the rotation axis of the valve core 2, making the transmission process of the rotating part 31 driving the valve core 2 to rotate more stable and improving the smoothness of valve opening. The sealing gasket 35 can provide leakage prevention at the connection of the valve stem retaining pin 34, reducing the probability of potential leakage at the connection and improving the sealing effect.

[0047] Reference Figure 2 and Figure 4 The rotating part 31 penetrates the valve body 1, with one end connected to the valve core 2 and the other end extending to the outside of the valve body 1. The control part 32 is a disc-shaped component perpendicular to the rotation axis of the rotating part 31. The rotation center of the disc coincides with the rotation axis of the rotating part 31, so that the rotation of the control part 32 can be synchronously transmitted to the rotating part 31. The valve body 1 has a control cavity 152 corresponding to the position of the control part 32, in which the control part 32 is rotatably arranged.

[0048] Reference Figure 1 and Figure 2 The valve body 1 has a self-locking hole 111 parallel to the docking direction at the connecting end 11 and a self-locking component 4 is provided at the self-locking hole 111. The connecting end 11 also has an interlocking outlet hole 112 and an interlocking inlet hole 113 and an interlocking component 5 is provided at the interlocking outlet hole 112. A port sealing component 7 is provided at the connecting end 11 and a valve core sealing component 8 is provided in the fluid channel 13.

[0049] Reference Figure 2 and Figure 5 The valve body 1 is also provided with an interlocking hole 153 that connects the control cavity 152 and the self-locking hole 111, and a transmission lock hole 154 that connects the interlocking outlet hole 112 and the control cavity 152.

[0050] Reference Figure 5 and Figure 6The self-locking assembly 4 includes a self-locking rod 41 movably arranged in the self-locking hole 111, a self-locking spring 42 arranged inside the self-locking rod 41, and a self-locking ball 43 arranged in the interlocking hole 153 for cooperating with the control unit 32. The self-locking rod 41 includes a rod body 411 and a rod end 412 installed at the end of the rod body 411. The radial width of the rod end 412 is greater than the diameter of the interlocking outlet hole 112 and the interlocking inlet hole 113, which can reduce the probability of the self-locking rod 41 accidentally being inserted into other holes when the self-locking quick ball valve connector is connected, thus improving the accuracy of the connection. One end of the self-locking spring 42 abuts against the bottom of the self-locking hole 111, and the other end abuts against the rod body 411, so that the self-locking rod 41 always has a tendency to move outward along the self-locking hole 111.

[0051] Reference Figure 5 and Figure 6 The control unit 32 has a self-locking groove 321 for the self-locking ball 43 to engage. The self-locking groove 321 includes a first locking groove 3211 and a second locking groove 3212, which are respectively arranged at the circumferential edge of the control unit 32. The self-locking rod 41 has an unlocking ring groove 4111 for accommodating the self-locking ball 43 so that the self-locking ball 43 is separated from the self-locking groove 321, and a self-locking structure 4112 located inside the unlocking ring groove 4111 for driving the self-locking ball 43 to engage in the self-locking groove 321. The self-locking structure 4112 includes a locking ring groove communicating with the unlocking ring groove 4111, wherein a first locking surface 41121 and a second locking surface 41122 are provided on the groove wall of the locking ring groove. The first locking surface 41121 is parallel to the length direction of the self-locking rod 41, and the second locking surface 41122 is radially outward along the self-locking rod 41, so that when the self-locking rod 41 moves, the locking ring groove can smoothly push the self-locking ball 43 to move. The groove wall of the unlocking ring groove 4111 is also radially outward, making the process of the self-locking ball 43 entering the unlocking ring groove 4111 smoother.

[0052] Reference Figure 5 and Figure 6 When the valve core 2 rotates to the fully closed position, the first locking groove 3211 on the control unit 32 rotates to a position directly opposite the interlocking hole 153. The self-locking spring 42 pushes the self-locking rod 41 to move outward from the self-locking hole 111, and the self-locking structure 4112 pushes the self-locking ball 43 into the first locking groove 3211 of the control unit 32. After the self-locking ball 43 is engaged, the self-locking rod 41 continues to move, causing the second locking surface 41122 to press the self-locking ball 43 against the wall of the interlocking hole 153, and the first locking surface 41121 to press the self-locking ball 43 against the groove wall of the first locking groove 3211 on the control unit 32, thus restricting the self-locking ball 43 within the first locking groove 3211 and the interlocking hole 153, achieving locking between the valve stem assembly 3 and the connector valve body 1, and reducing the probability of accidental opening.

[0053] Reference Figure 2 and Figure 5 When two self-locking quick ball valve connectors are mated, the connecting end 11 of one connector valve body 1 pushes against the self-locking rod 41 of the other connector valve body 1, causing it to move deeper into the self-locking hole 111 against the spring force of the self-locking spring 42. At this time, the unlocking ring groove 4111 on the self-locking rod 41 moves to a position directly opposite the interlocking hole 153. Rotating the control unit 32 can squeeze the self-locking ball 43 out of the first locking groove 3211 into the unlocking ring groove 4111, thereby releasing the lock on the control unit 32. At this time, the operator can rotate the valve stem assembly 3, causing the valve core 2 to rotate to the open position, realizing the flow of fluid.

[0054] Reference Figure 1 and Figure 4 The valve body 1 has a support portion 15 supporting the mounting portion 33. A handle assembly 6 is connected to the valve stem assembly 3. The handle assembly 6 includes a locking pin 61 passing through the mounting portion 33, an eccentric handle 63 connected to the top of the locking pin 61, and an elastic member 62 installed between the locking pin 61 and the mounting portion 33. Limiting blocks 331 are provided on both sides of the eccentric handle 63 on the mounting portion 33, so that when the eccentric handle 63 rotates and abuts against the limiting blocks 331, it can drive the mounting portion 33 to rotate synchronously. A reset ring 611 is provided on the outer peripheral wall of the locking pin 61. An anti-disengagement ring 332 is provided on the mounting portion 33. One end of the elastic member 62 abuts against the reset ring 611, and the other end abuts against the anti-disengagement ring 332, thereby driving the locking pin 61 to always tend to move towards the support portion 15. The support part 15 has a first locking groove 155 and a second locking groove 156 for the locking pin 61 to be inserted. The first locking groove 155 is located at the insertion position of the locking pin 61 when the valve core 2 is fully closed, and the second locking groove 156 is located at the insertion position of the locking pin 61 when the valve core 2 is fully open.

[0055] Reference Figure 4 and Figure 5When the self-locking ball 43 is placed in the first locking groove 3211, the locking pin 61 automatically inserts into the first locking groove 155 under the driving action of the elastic element 62, restricting the rotation of the eccentric handle 63 and forming a double lock between the self-locking assembly 4 and the handle assembly 6. When the two self-locking quick ball valve connectors are connected, the self-locking ball 43 enters the unlocking ring groove 4111. The operator rotates the eccentric handle 63, causing the mounting part 33 of the valve stem assembly 3 to rotate. The control part 32 of the valve stem assembly 3 also rotates, and the first locking groove 3211 on the control part 32 deviates from the position directly opposite to the interlocking hole 153. Continuing to rotate the eccentric handle 63, the second locking groove 3212 on the control part 32 is aligned with the interlocking hole 153, and the self-locking ball 43 is placed in the second locking groove 3212. At this time, the locking pin 61 automatically inserts into the second locking groove 156 under the driving action of the elastic element 62, restricting the rotation of the eccentric handle 63 and forming a double lock between the self-locking assembly 4 and the handle assembly 6 again. When the self-locking ball 43 is placed in the unlocking ring groove 4111, the eccentric handle 63 drives the valve stem assembly 3 to rotate.

[0056] Reference Figure 4 and Figure 7 The eccentric handle 63 includes a grip portion 631 and an eccentric portion 632. The surface of the grip portion 631 is provided with anti-slip textures 6311. The mounting portion 33 has an anti-slip groove 333 for the anti-slip textures 6311 to be inserted into. The eccentric portion 632 is equipped with an eccentric rotating shaft 6321, which is parallel to the top surface of the mounting portion 33, allowing the eccentric handle 63 to swing closer to and further away from the mounting portion 33 around the axis of the eccentric rotating shaft 6321. When the eccentric handle 63 swings to be in contact with the mounting portion 33, the anti-slip textures 6311 can be inserted into the anti-slip groove 333, reducing the probability of the eccentric handle 63 disengaging. The locking pin 61 has a drive through hole 612 for the eccentric rotating shaft 6321 to pass through, allowing the eccentric handle 63 to rotate within the drive through hole 612. The eccentric rotating shaft 6321 cooperates with the drive through hole 612, so that the swing of the eccentric handle 63 can drive the locking pin 61 to move axially, so that the locking pin 61 can be inserted or pulled out in the first locking groove 155 or the second locking groove 156, thereby releasing the lock between the valve stem assembly 3 and the connector valve body 1.

[0057] Reference Figure 1 and Figure 5The interlock assembly 5 includes an interlocking member 51 movably installed within the interlocking outlet hole 112. An interlocking drive structure is provided between the control unit 32 and the interlocking member 51. The interlocking drive structure includes interlocking grooves 511 spaced along the length of the interlocking member 51 and interlocking protrusions 322 circumferentially disposed around the rotation axis of the valve core 2 in the control unit 32. The interlocking protrusions 322 and the interlocking grooves 511 engage in the transmission lock hole 154, allowing the rotational motion of the control unit 32 to be transmitted to the interlocking grooves 511 via the interlocking protrusions 322, thereby enabling the interlocking member 51 to move along the interlocking outlet hole 112. When two self-locking quick-release ball valve connectors are mated, the interlock outlet hole 112 of one self-locking quick-release ball valve connector aligns with the interlock inlet hole 113 of the other self-locking quick-release ball valve connector. Rotation of the valve stem assembly 3 causes the control unit 32 to rotate, and the interlocking teeth 322 engage with the interlocking groove 511, driving the interlocking member 51 to move out of the interlock outlet hole 112. The interlocking member 51 on one self-locking quick-release ball valve connector extends and penetrates into the interlocking inlet hole 113 of the other self-locking quick-release ball valve connector, achieving physical locking of the two self-locking quick-release ball valve connectors and reducing the probability of the two connectors rotating relative to each other or being misaligned. When unlocking is required, the control unit 32 drives the interlocking member 51 to retract into the interlock outlet hole 112 via the interlocking drive structure, thus unlocking the two self-locking quick-release ball valve connectors.

[0058] Reference Figure 3 and Figure 8 The port sealing assembly 7 includes a sealing ring body 71 and a first sealing ring flap 72 and a second sealing ring flap 73 respectively disposed on the inner wall of the sealing ring body 71. The ends of the first sealing ring flap 72 and the second sealing ring flap 73 are both arranged to be outwardly inclined towards both sides of the sealing ring body 71. The connector valve body 1 has a port sealing ring groove 16 for the insertion of the first sealing ring flap 72 and an anti-disengagement protrusion 17 is provided on the groove edge of the port sealing ring groove 16. The port sealing assembly 7 is installed into the port sealing ring groove 16, so that the first sealing ring flap 72 is engaged into the port sealing ring groove 16. The anti-disengagement protrusion 17 can prevent the first sealing ring flap 72 from disengaging from the port sealing ring groove 16. The second sealing ring flap is located at the groove opening of the port sealing ring groove 16. A compression sealing cavity is formed between the first sealing ring flap 72 and the second sealing ring flap 73. When the two self-locking quick ball valve connectors are mated and pressed together, the two second sealing rings 73 abut against each other and press against the anti-dislodgement protrusion 17, while the first sealing ring 72 is squeezed tightly against the groove wall of the port sealing ring groove 16. When the mating is complete and fluid flows into the compression sealing cavity, the fluid pressure presses the first sealing ring 72 against the groove wall of the port sealing ring groove 16, and presses the two second sealing rings 73 against each other, achieving a self-reinforcing seal under pressure and improving the sealing effect. In this embodiment, the port sealing assembly 7 is made of PTFE or RPTFE.

[0059] Reference Figure 3 and Figure 9 The valve core sealing assembly 8 includes a sealing ring body 81 and a first sealing portion 82 and a second sealing portion 83 symmetrically arranged on both sides of the sealing ring body 81. The connector valve body 1 has a valve core sealing ring groove 18 for the sealing ring body 81 to be embedded and installed. The first sealing portion 82 includes a first stationary lip 821 and a first moving lip 822 facing the valve core 2, and a first compression groove 823 located between the first stationary lip 821 and the first moving lip 822. The second sealing portion 83 includes a second stationary lip 831 and a second moving lip 832 facing the valve core 2, and a second compression groove 833 located between the second stationary lip 831 and the second moving lip 832. In this embodiment, the valve core sealing assembly 8 is made of PTFE or RPTFE.

[0060] Reference Figure 3 and Figure 9 The sealing ring body 81 has a first annular surface 811 facing the bottom of the valve core sealing ring groove 18, forming a first buffer cavity 84 between the first annular surface 811 and the valve core sealing ring groove 18. The sealing ring body 81 has a second annular surface 812 facing the valve core 2, forming a second buffer cavity 85 between the second annular surface 812 and the outer wall of the valve core 2. When the valve core sealing assembly 8 is installed in the valve core sealing ring groove 18, the outer annular walls of the first stationary lip 821 and the second stationary lip 831 are tightly fitted to the groove wall of the valve core sealing ring groove 18 opened on the inner wall of the connector valve body 1. The interference fit of the material itself generates an initial preload, and the first buffer cavity 84 compensates for installation errors, which is conducive to the direct snap-fit ​​of the valve core sealing assembly 8, forming a fluid static seal. The inner annular end faces of the first moving lip 822 and the second moving lip 832 abut against the outer wall of the valve core 2, forming a fluid dynamic seal. When the valve core 2 rotates, due to the presence of the second buffer chamber 85, the first moving lip 822 and the second moving lip 832 can adaptively adjust to the offset of the valve core 2 and temperature changes, maintain stable contact sealing, reduce dynamic wear loss, and extend service life.

[0061] Reference Figure 3 and Figure 9When fluid flows, as the fluid pressure in the fluid channel 13 of the valve body 1 increases, the fluid accumulates in the first compression groove 823. As the pressure gradually increases, the pressure acting on the back of the first moving lip 822 causes the first moving lip 822 to deform, pressing it tightly against the outer wall of the valve core 2, thus improving the sealing effect of the first moving lip 822. Simultaneously, it presses the first stationary lip 821 tightly against the groove wall of the valve core sealing ring groove 18, improving the sealing effect of the first stationary lip 821. The fluid pressure pushes the valve core 2 towards the second moving lip 832, pressing the second moving lip 832 tightly against the second stationary lip 831, further improving the sealing effect. Conversely, when fluid flows in from the other side, the fluid accumulates in the second extrusion groove 833. As the pressure gradually increases, the pressure acting on the back of the second moving lip 832 causes the second moving lip 832 to deform, pressing the second moving lip 832 against the outer wall of the valve core 2, thus improving the sealing effect of the second moving lip 832. At the same time, it presses the second stationary lip 831 against the groove wall of the valve core sealing ring groove 18, thus improving the sealing effect of the second stationary lip 831.

[0062] Reference Figure 1 and Figure 2 The valve body 1 has at least two circumferentially arranged connecting protrusions 114 at the connecting end 11, and connecting baffles 115 spaced apart from the connecting protrusions 114. Since the connecting baffles 115 are circumferentially arranged, the connecting grooves 116 between the connecting baffles 115 and the connecting end 11 for the connecting protrusions 114 to engage are also circumferentially arranged. The connecting protrusions 114 are at least two in number and circumferentially arranged. The connecting baffles 115 have clearance grooves 1151 spaced apart from the connecting grooves 116, and the width of the clearance grooves 1151 is not less than the circumferential width of the connecting protrusions 114, facilitating the insertion of the connecting protrusions 114 during installation.

[0063] Reference Figure 1 and Figure 10 As a preferred error-proofing design, the multiple connecting protrusions 114 in this embodiment are not identical. Specifically, at least two connecting protrusions 114 are set to have different circumferential dimensions. For example, in one specific embodiment, two connecting protrusions 114 can be provided, one with a circumferential width of W1 and the other with a circumferential width of W2, and W1 ≠ W2. In another embodiment, three connecting protrusions 114 can be provided, with circumferential widths of W1, W2, and W3, respectively, and the three are different from each other.

[0064] Correspondingly, the clearance grooves 1151 on the connecting baffle 115 are also provided in a one-to-one correspondence with the connecting protrusions 114. That is, the circumferential dimension of each clearance groove 1151 matches the circumferential dimension of the corresponding connecting protrusion 114 to ensure that the connecting protrusion 114 can pass smoothly. For example, the clearance groove 1151 corresponding to the connecting protrusion 114 with a circumferential width of W1 has a groove width of not less than W1; the clearance groove 1151 corresponding to the connecting protrusion 114 with a circumferential width of W2 has a groove width of not less than W2.

[0065] This asymmetrical design offers significant technical advantages: when two self-locking quick-connect ball valve fittings need to be mated, the operator must align each connecting protrusion 114 with the corresponding width of the clearance groove 1151 to ensure successful insertion and rotational locking. If an attempt is made to mate them in the wrong direction or at the wrong angle—for example, attempting to insert a connecting protrusion 114 of width W1 into a clearance groove 1151 of width W2 (assuming W2 < W1)—the protrusion 114 will not be able to pass through the clearance groove 1151 due to the size mismatch, thus preventing the subsequent rotational locking action. This prevents errors and avoids the risk of leakage or connection failure caused by incorrect mating.

[0066] It is understood that the non-identical design of the connecting protrusion 114 is not limited to differences in circumferential width. Under the concept of this application, those skilled in the art can conceive of various equivalent modifications to achieve the same error-proofing function. For example: Different thicknesses: Multiple connecting protrusions 114 can be set to have different radial thicknesses, allowing the grooves 1151 to be set to different depths accordingly; Different shapes: One of the connecting protrusions 114 can be set as a trapezoid and the other as a rectangle, so that the groove 1151 can be set to a matching shape accordingly; Different distribution angles: Multiple connecting protrusions 114 can be set to non-uniform circumferential distribution angles, for example, one is located at 0° and the other is located at 120° instead of 180° symmetrical position; Different heights: The connecting protrusion 114 can be set to have different axial heights.

[0067] Any structural change that can form a distinguishing feature and enable the two joints to dock only at a preset circumferential angle is an equivalent substitution under the concept of this application and should be included within the protection scope of this application.

[0068] Reference Figure 1 and Figure 10When two self-locking quick ball valve connectors are connected, the connecting protrusions 114 of the two connectors are inserted into the corresponding clearance grooves 1151 and rotate relative to each other, causing the connecting protrusions 114 to engage with the connecting grooves 116. The end of the connecting protrusion 114 is provided with a radially outwardly protruding anti-disengagement flange 1141, which can lock in place within the connecting groove 116, reducing the probability of accidental disengagement. When the two connectors rotate relative to each other until the connecting protrusions 114 engage with the connecting grooves 116, the anti-disengagement flange 1141 extends beyond the edge of the connecting baffle 115, forming an axial limit with the connecting baffle 115, effectively preventing the two connectors from accidentally disengaging.

[0069] Combination Figures 1 to 10 The implementation principle of a self-locking quick ball valve connector in this application embodiment is as follows: In the initial state, the valve core 2 is closed, the first locking groove 3211 of the control part 32 is aligned with the interlocking hole 153, the self-locking spring 42 pushes the self-locking rod 41, and uses its self-locking structure 4112 to press the self-locking ball 43 into the first locking groove 3211 and lock it. At the same time, the locking pin 61 of the handle assembly 6 is inserted into the first locking groove 155 of the support part 15 under the action of the elastic member 62, forming a double lock; during docking, one connector The connecting end 11 pushes the self-locking rod 41 of the other connector inward, causing the unlocking ring groove 4111 to align with the interlocking hole 153, and the self-locking ball 43 falls into the unlocking ring groove 4111 to release the internal lock; at the same time, the connecting protrusion 114 is guided through the relief groove 1151 and rotated into the connecting groove 116; since the circumferential dimensions of the connecting protrusions 114 are different and correspond one-to-one with the relief grooves 1151, only the correct docking direction can be successfully inserted, realizing the error prevention function; at this time, the eccentric handle 63 is rotated, and the eccentric handle 63 is rotated. The rotating shaft 6321 drives the locking pin 61 to move upward and disengage from the first locking groove 155, causing the valve stem assembly 3 to rotate. The control unit 32 rotates and, through the engagement of the interlocking protrusion 322 with the interlocking groove 511, drives the interlocking member 51 to extend from the interlocking outlet hole 112 and insert into the interlocking inlet hole 113 of the mating self-locking quick ball valve connector. Continuing to rotate until the valve core 2 opens, the second locking groove 3212 aligns with the interlocking hole 153, the self-locking ball 43 engages, and the locking pin 61 enters the second locking groove 156, completing the process. The locking mechanism is engaged; under the action of docking compression and fluid pressure, the port sealing assembly 7 causes the first sealing ring 72 and the second sealing ring 73 to tightly adhere to the port sealing ring groove 16 and the anti-detachment protrusion 17, achieving a self-reinforcing seal; in the valve core sealing assembly 8, fluid enters the first extrusion groove 823 or the second extrusion groove 833, pushing the first moving lip 822 or the second moving lip 832 to tightly adhere to the outer wall of the valve core 2, while the first stationary lip 821 and the second stationary lip 831 press against the groove wall of the valve core sealing ring groove 18, improving the sealing effect. Example 2:

[0070] Compared to Example 1, Example 2 involves connecting the two self-locking quick-acting ball valve connectors from Example 1, referring to... Figure 1 and Figure 11This connects the connecting ends 11 of the valve body 1 to each other.

[0071] Reference Figures 1 to 11 The implementation principle of a self-locking quick ball valve connector system in this application embodiment is as follows: The connecting ends 11 of two self-locking quick ball valve connectors are joined together. The connecting protrusion 114 is guided through the clearance groove 1151 and rotated into the connecting groove 116. The connecting end 11 pushes and drives the self-locking rod 41 to retract inward, aligning the unlocking ring groove 4111 with the interlocking hole 153. The self-locking ball 43 falls into the interlocking hole 153 and the unlocking ring groove 4111 to release the lock. The eccentric handle 63 drives the locking pin 61 to move upward and disengage from the first locking groove 155. Rotating the eccentric handle 63 drives the valve stem assembly 3 to rotate. The control unit 32 rotates and engages with the interlocking groove 511 through the interlocking protrusion 322, driving the interlocking member 51 to extend from the interlocking outlet hole 112 and insert into the corresponding interlocking inlet hole 113. Continue rotating until valve core 2 is open, second locking groove 3212 aligns with interlocking hole 153, self-locking ball 43 engages, locking pin 61 enters second locking groove 156, completing opening and locking. Port sealing assembly 7 is compressed, causing first sealing ring petal 72 and second sealing ring petal 73 to tightly adhere to port sealing ring groove 16 and anti-detachment protrusion 17.

[0072] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A self-locking quick-connect ball valve connector, comprising: The valve body (1) has a connecting end (11); The valve core (2) is rotatably installed inside the connector valve body (1); The valve stem assembly (3) is rotatably mounted on the connector valve body (1) and connected to the valve core (2) for driving the opening and closing of the valve core (2); It is characterized by further including a handle assembly (6) and a self-locking assembly (4); The valve stem assembly (3) is provided with a control part (32) and a mounting part (33); The valve body (1) is also provided with a control cavity (152) for the control unit (32) to rotate, and a first locking groove (155) is provided. The handle assembly (6) includes a locking pin (61) passing through the mounting portion (33), an eccentric handle (63) connected to the top of the locking pin (61), and an elastic element (62) installed between the locking pin (61) and the mounting portion (33) to drive the locking pin (61) to always have movement toward the connector valve body (1). The self-locking assembly (4) includes a self-locking rod (41) movable in the docking direction and a movable self-locking ball (43); The valve body (1) is provided with an interlocking hole (153) that connects the control cavity (152) and the moving space of the self-locking rod (41), and the self-locking ball (43) is accommodated in the interlocking hole (153); The control unit (32) has a self-locking groove (321) for the self-locking ball (43) to be inserted into; The handle assembly (6) and the self-locking assembly (4) are configured such that when the valve core (2) is closed, the self-locking rod (41) engages with the self-locking groove (321) through the self-locking ball (43), and the locking pin (61) can be inserted into the first locking groove (155) to restrict the rotation of the handle assembly (6) and the valve stem assembly (3); when the self-locking assembly (4) is unlocked, the handle assembly (6) can drive the valve stem assembly (3) to rotate.

2. The self-locking quick-connect ball valve connector according to claim 1, characterized in that, The valve body (1) has a self-locking hole (111) parallel to the docking direction and for the self-locking assembly (4) to be arranged at the connecting end (11), and an interlocking hole (153) connecting the control cavity (152) and the self-locking hole (111); the self-locking assembly (4) also includes a self-locking spring (42) arranged inside the self-locking rod (41) and driving the self-locking rod (41) to always have a tendency to move towards the docking direction; the control part (32) has a self-locking groove (321) for the self-locking ball (43) to be inserted; the self-locking assembly (42) is provided with a self-locking groove (321) for the self-locking ball (43) to be inserted; the self-locking assembly (42) is provided with a self-locking groove (153) for the self-locking ball (43) to be inserted; the self-locking assembly (42) is provided with a self-locking groove (153) for the self-locking ball (43) to be inserted; the self-locking ball (43 ... The locking groove (321) includes a first locking groove (3211) and a second locking groove (3212) distributed circumferentially; the self-locking rod (41) has an unlocking ring groove (4111) for receiving the self-locking ball (43) so that the self-locking ball (43) is separated from the self-locking groove (321) and a self-locking structure (4112) located inside the unlocking ring groove (4111) and used to drive the self-locking ball (43) into the self-locking groove (321); when the valve core (2) is closed, the self-locking groove (321) is directly opposite the interlocking hole (153).

3. A self-locking quick-connect ball valve connector according to claim 2, characterized in that, The valve body (1) has a support (15) that supports the mounting part (33); the support (15) also has a second locking groove (156) for the locking pin (61) to be inserted; when the self-locking ball (43) is placed in the unlocking ring groove (4111), the eccentric handle (63) drives the valve stem assembly (3) to rotate; when the self-locking ball (43) is placed in the second locking groove (3212), the locking pin (61) is inserted into the second locking groove (156).

4. A self-locking quick-connect ball valve connector according to claim 3, characterized in that, An eccentric shaft (6321) is installed at the end of the eccentric handle (63); the locking pin (61) has a drive through hole (612) through which the eccentric shaft (6321) passes; the eccentric shaft (6321) cooperates with the drive through hole (612) so that the swing of the eccentric handle (63) can drive the locking pin (61) to move axially, so as to lock or unlock the locking pin (61) with the first locking groove (155) or the second locking groove (156).

5. A self-locking quick-connect ball valve connector according to claim 2, characterized in that, It also includes an interlock assembly (5); the connector valve body (1) has an interlock outlet hole (112) and an interlock inlet hole (113) parallel to the docking direction; the interlock assembly (5) includes an interlock member (51) movably installed in the interlock outlet hole (112); an interlock drive structure is provided between the control unit (32) and the interlock member (51); the control unit (32) drives the interlock member (51) to extend and retract in the interlock outlet hole (112) through the interlock drive structure; the interlock member (51) on one connector valve body (1) can be inserted into the interlock inlet hole (113) of another connector valve body (1).

6. A self-locking quick-connect ball valve connector according to claim 5, characterized in that, The valve body (1) has a transmission lock hole (154) that connects the interlock outlet hole (112) and the control cavity (152); the interlock drive structure includes interlock grooves (511) spaced along the length direction on the interlock member (51) and interlock protrusions (322) circumferentially arranged on the control part (32) around the rotation axis of the valve core (2); the interlock protrusions (322) and the interlock grooves (511) engage in the transmission lock hole (154).

7. A self-locking quick-connect ball valve connector according to claim 2, characterized in that, It also includes a port sealing assembly (7); the port sealing assembly (7) includes a sealing ring body (71) and a first sealing ring petal (72) and a second sealing ring petal (73) respectively disposed on the inner wall of the sealing ring body (71); the ends of the first sealing ring petal (72) and the second sealing ring petal (73) are both arranged to be inclined outwards towards both sides of the sealing ring body (71); the connector valve body (1) is provided with a port sealing ring groove (16) for the first sealing ring petal (72) to be inserted and arranged, and an anti-detachment protrusion ring (17) is provided on the groove edge of the port sealing ring groove (16); a compression sealing cavity is provided between the first sealing ring petal (72) and the second sealing ring petal (73).

8. A self-locking quick-connect ball valve connector according to claim 2, characterized in that, It also includes a valve core sealing assembly (8); the valve core sealing assembly (8) includes a sealing ring body (81) and a first sealing part (82) and a second sealing part (83) symmetrically arranged on both sides of the sealing ring body (81); the first sealing part (82) includes a first stationary lip (821) facing the valve core (2), a first moving lip (822) and a first extrusion groove (823) located between the first stationary lip (821) and the first moving lip (822); the second sealing part (83) includes a second stationary lip (831) facing the valve core (2), a second moving lip (832) and a second extrusion groove (833) located between the second stationary lip (831) and the second moving lip (832); the inner rings of the first moving lip (822) and the second moving lip (832) abut against the outer wall of the valve core (2).

9. A self-locking quick-connect ball valve connector according to claim 8, characterized in that, The valve body (1) has a valve core sealing ring groove (18) for the sealing ring body (81) to be embedded and installed; the outer ring wall of the first stationary lip (821) and the outer ring wall of the second stationary lip (831) are both attached to the groove wall of the valve core sealing ring groove (18); the sealing ring body (81) has a first annular surface (811) facing the bottom of the groove of the valve core sealing ring groove (18); a first buffer cavity (84) is formed between the first annular surface (811) and the valve core sealing ring groove (18); the sealing ring body (81) has a second annular surface (812) facing the valve core (2); a second buffer cavity (85) is formed between the second annular surface (812) and the outer wall of the valve core (2).

10. A self-locking quick-connect ball valve connector according to claim 2, characterized in that, The valve body (1) at the connecting end (11) is provided with at least two circumferentially arranged connecting protrusions (114) and connecting baffles (115) spaced apart from the connecting protrusions (114); a connecting groove (116) for the connecting protrusions (114) to be engaged is provided between the connecting baffle (115) and the connecting end (11); the connecting baffle (115) is provided with clearance grooves (1151) spaced apart from the connecting grooves (116) and for the connecting protrusions (114) to pass through. Among them, the circumferential dimensions of at least two of the connecting protrusions (114) are set to be different from each other, and the circumferential dimensions of the clearance groove (1151) are set to correspond one-to-one with the connecting protrusions (114) to form a misalignment prevention structure. The end of the connecting protrusion (114) is provided with a radially outward protruding anti-detachment flange (1141).

11. A self-locking quick-connect ball valve connector according to claim 2, characterized in that, The valve stem assembly (3) includes a rotating part (31) connected to the valve core (2) and the control unit (32); the connector valve body (1) has an adjustment hole (151) for the rotating part (31) to rotate; the rotating part (31) has a circumferentially formed rotary sealing groove (311); the valve stem assembly (3) includes a rotary sealing ring (312) installed in the rotary sealing groove (311); the outer ring wall of the rotary sealing ring (312) abuts against the hole wall of the adjustment hole (151); the valve stem assembly (3) also includes a valve stem fixing pin (34) connected to the rotating part (31) and the valve core (2); the valve stem fixing pin (34) coincides with the rotation axis of the valve core (2); a sealing gasket (35) is provided between the valve stem fixing pin (34) and the rotating part (31).

12. A self-locking quick ball valve connector system comprising two self-locking quick ball valve connectors as described in claim 5 or 6, which are connected by a connecting end (11) and interlocked by an interlocking assembly (5).

Images