Self-sealing check valve

Abstract

The self-sealing check valve for which protection is sought in the present application comprises a first joint assembly, a second joint assembly independently arranged relative to the first joint assembly and detachably connected to the first joint assembly, the first joint assembly being used to connect and communicate with a first pipeline and capable of independently controlling the on / off of the first pipeline, the second joint assembly being used to connect and communicate with a second pipeline and capable of independently controlling the on / off of the second pipeline, and when the first joint assembly is connected to the second joint assembly, the first pipeline and the second pipeline can be connected via the first joint assembly and the second joint assembly, so that the self-sealing check valve can realize the disassembly and assembly between the first pipeline and the second pipeline and has the function of two-way sealing.

Description

Technical Field

[0001] The invention belongs to the technical field related to flow control valves, and in particular relates to a self-sealing check valve. Background Art

[0002] Energy storage system is an indispensable part of modern energy system. It can improve the efficiency, reliability and stability of energy system, reduce energy waste and environmental pollution, and provide important technical support for the development of renewable energy and electric vehicles. In the current development of automobiles and energy storage systems, a fast-swap battery technology has emerged. This technology can improve the efficiency, increase safety, reduce ownership costs and reduce environmental pollution during the use of automobiles or energy storage.

[0003] During the battery replacement process, the energy storage system may be under certain pressure, and liquid may flow out during the disassembly process, causing waste of resources, environmental pollution, corrosion to other parts, and even short circuit and fire hazards if it flows onto electrical components.

[0004] At present, most existing energy storage systems use metal ball valves or butterfly valves, which are expensive and need to be used in conjunction with the drain valve on the pipeline assembly. The operation is cumbersome and there is a risk of liquid outflow. Among them, the one-way valve structure can only limit the outflow of liquid in one direction, and the other end has no liquid locking function; and the stop valve with two-way liquid locking function, when there is pressure inside the pipeline, the joint will be opened at the moment of unlocking, resulting in the risk of liquid outflow. Therefore, it is necessary to design a reliable stop valve with two-way liquid locking function and self-sealing to prevent leakage. Summary of the invention

[0005] In view of this, it is necessary to provide a self-sealing check valve for solving the above technical problems.

[0006] A self-sealing check valve, the self-sealing check valve comprising:

[0007] A first joint assembly includes a first joint, a first rotating disk and a first socket, wherein the first joint is used to connect and communicate with a first pipeline, the first rotating disk is rotatably installed in the first joint, and is used to control the on / off of the first joint, and the first socket is fixedly connected to the first joint and abuts against the first rotating disk, and is used to limit the first rotating disk to the first joint;

[0008] A second joint assembly is independently arranged relative to the first joint assembly and is detachably connected to the first joint assembly, the second joint assembly includes a second joint, a second rotating disk, a second plug sleeve and a driving sleeve, the second joint is used to connect and communicate with a second pipeline, the driving sleeve is sleeved on the second plug sleeve and connected to the second joint, and is used to limit the second plug sleeve to the second joint, the second rotating disk is arranged in the driving sleeve and is connected to the second joint, and the second rotating disk is abutted against an end of the second plug sleeve located in the driving sleeve and is circumferentially limited by the driving sleeve, and is used to control the on / off between the second plug sleeve and the second joint;

[0009] The second socket can be inserted into the first socket and engaged with the first rotating disk, so as to control the connection / disconnection between the first connector and the second socket under the drive of the second socket.

[0010] It can be understood that, through the above-mentioned structural setting, the self-sealing check valve can be connected to and communicated with the first pipeline by the first joint, and the second joint can be connected to and communicated with the second pipeline. The first joint is opened / closed by driving the first rotating disk to rotate in the first joint by the second sleeve, and the second joint is opened / closed by driving the second rotating disk to rotate by the driving sleeve, so that the self-sealing check valve can realize the disassembly and assembly between the first pipeline and the second pipeline, and has the function of two-way sealing, and the various components of the self-sealing check valve can be made of plastic material, which is low in cost; in this process, the control of on / off between the first joint and the second joint can be realized only after the first joint assembly and the second joint assembly are assembled in place, so that the self-sealing check valve can be prevented from leaking during the flow switching process between the first pipeline and the second pipeline.

[0011] In one embodiment, a first through hole is formed on the first joint, and the first through hole is arranged at the periphery of the center line of the first joint;

[0012] The first rotating disk is provided with a first connecting hole, which is arranged corresponding to the first through hole. Moreover, the first rotating disk can control the connection / disconnection between the first connecting hole and the corresponding first through hole and control the connection / disconnection between the first connector and the second socket under the drive of the second socket.

[0013] In one embodiment, the first joint is embedded with a first sealing ring at the periphery of the first through hole, and / or the first rotating disk is embedded with a first sealing ring at the periphery of the first communicating hole;

[0014] The first sealing ring can be elastically deformed under the pressure of the first joint and the first rotating disk.

[0015] It can be understood that the elastic deformation of the first sealing ring after being compressed can ensure the sealing between the first through hole and the corresponding first connecting hole when on / off, and prevent leakage of the medium when flowing between the first connecting holes.

[0016] In one embodiment, a second sealing ring is provided on the first socket and / or the second socket;

[0017] When the second socket passes through the first socket and is clamped with the first rotating disk, the first socket and the second socket are assembled and sealed by the second sealing ring.

[0018] It can be understood that the elastic deformation of the second sealing ring can ensure the sealing of the assembly between the second socket and the first socket when the second socket is inserted into the first socket, thereby preventing leakage of the medium when the medium flows between the second socket and the first joint.

[0019] In one embodiment, a second through hole is formed on the second rotating disk, and the second through hole is arranged on the periphery of the center line of the second rotating disk;

[0020] A second connecting hole is provided at one end of the second socket located inside the driving sleeve, and the second connecting hole is arranged corresponding to the second through hole. Furthermore, the second rotating disk can control the connection / disconnection between the second through hole and the corresponding second connecting hole and control the connection / disconnection between the second connector and the second socket under the drive of the driving sleeve.

[0021] In one embodiment, a third sealing ring is embedded in the second rotating disk at the periphery of the second through hole, and / or the second plug sleeve is embedded in the periphery of the second communicating hole;

[0022] The third sealing ring can be elastically deformed under the pressure of the second rotating disk and the second insert sleeve.

[0023] It can be understood that the elastic deformation of the third sealing ring can ensure the sealing performance of the assembly between the second rotating disk and the second plug sleeve, thereby preventing leakage of the medium when the medium flows between the second rotating disk and the second plug sleeve.

[0024] In one embodiment, a fourth sealing ring is provided on the second plug sleeve and / or the driving sleeve, and the second plug sleeve and the driving sleeve can be assembled and sealed by the fourth sealing ring.

[0025] It can be understood that the elastic deformation of the fourth sealing ring can ensure the sealing of the assembly between the second plug sleeve and the driving sleeve, thereby preventing leakage of the medium when flowing between the second joint and the second plug sleeve.

[0026] In one embodiment, the second plug sleeve and the drive sleeve are selectively circumferentially limited;

[0027] When the second plug sleeve and the driving sleeve are circumferentially limited, the second plug sleeve can drive the first rotating disk to rotate relative to the first joint under the drive of the driving sleeve, so as to control the connection / disconnection between the first joint and the second plug sleeve;

[0028] When the second socket and the driving sleeve are released from circumferential restriction, the second rotating disk can be driven by the driving sleeve to rotate relative to the second socket to control the connection / disconnection between the second connector and the second socket.

[0029] It can be understood that, through the above-mentioned structural setting, when the user operates the self-sealing stop valve, the user can drive the driving sleeve to rotate / off to control the on / off between the first connector and the second socket, and the on / off between the second connector and the second socket in turn. This not only makes it easier for the user to operate the self-sealing stop valve, but also ensures the sealing of the first connector assembly and the second connector assembly after they are separated.

[0030] In one embodiment, an elastic member is pre-compressed between the second rotating disk and the second joint, which is used to push the second rotating disk against the second plug sleeve and form a preset gap between the second joint and the second rotating disk in the flow direction of the medium in the second joint;

[0031] When the driving sleeve drives the second joint to compress the elastic member and abut against the second rotating disk under the driving force of external force, the circumferential limit between the driving sleeve and the second plug sleeve is released.

[0032] It can be understood that, through the above-mentioned structural setting, the user can control the circumferential limit between the second plug sleeve and the driving sleeve by pressing the driving sleeve, which is convenient for the user's operation.

[0033] In one embodiment, one of the first plug sleeve and the second plug sleeve is provided with a slot, and the other plug sleeve is extended and formed with a convex column, and the convex column can be engaged with the slot;

[0034] Wherein, the slot includes a first slot portion and a second slot portion which are vertically arranged, and the boss can be inserted into the first slot portion and rotated into the second slot portion, so as to limit the second socket into the first socket and connect the first connector assembly with the second connector assembly.

[0035] It can be understood that, through the above-mentioned structural setting, the connection between the first joint assembly and the second joint assembly can be assembled and limited by the first socket and the second socket, which not only simplifies the structure but also facilitates the user to operate the self-sealing stop valve.

[0036] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0037] The self-sealing check valve for protection requested by the present application can be connected to and communicate with a first pipeline by a first joint, and connected to and communicate with a second pipeline by a second joint. The first joint is opened / closed by driving a first rotating disk to rotate in the first joint by a second plug sleeve, and the second joint is opened / closed by driving a second rotating disk to rotate by a driving sleeve, thereby enabling the self-sealing check valve to be disassembled and assembled between the first pipeline and the second pipeline, and has a two-way sealing function. In addition, the various components of the self-sealing check valve can be made of plastic material, which is low in cost. During this process, the on / off control between the first joint and the second joint can be realized only after the first joint assembly and the second joint assembly are assembled in place, thereby preventing the self-sealing check valve from leaking during the flow switching process between the first pipeline and the second pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 This is a schematic structural diagram of the self-sealing check valve provided in this application.

[0040] Figure 2 This is a schematic structural diagram of the self-sealing check valve provided in the present application from another perspective.

[0041] Figure 3 for Figure 2 AA section view.

[0042] Figure 4 for Figure 2 BB cross-sectional view.

[0043] Figure 5 This is an exploded view of the first joint assembly in this application.

[0044] Figure 6 This is an exploded view from another perspective of the first joint component in this application.

[0045] Figure 7 This is an exploded view of the second joint assembly in this application.

[0046] Figure 8 This is an exploded view from another perspective of the second joint component in this application.

[0047] Reference numerals: 100, self-sealing check valve; 10, first joint assembly; 11, first joint; 111, first through hole; 12, first rotating disk; 120, first retaining rib; 121, first communicating hole; 13, first plug sleeve; 130, retaining platform; 131, partition; 132, retaining ring; 133, slot; 1331, first groove; 1332, second groove; 20, second joint assembly; 21, second joint Head; 211, ribs; 22, second rotating disk; 221, second through hole; 222, extended ribs; 23, second plug sleeve; 230, block; 231, second connecting hole; 232, boss; 233, convex block; 24, driving sleeve; 241, groove; 2411, groove wall; 25, elastic member; 101, first sealing ring; 102, second sealing ring; 103, third sealing ring; 104, fourth sealing ring. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] It should be noted that when an element is referred to as being "provided on" another element, it may be directly provided on the other element or there may be a central element. When an element is considered to be "provided on" another element, it may be directly provided on the other element or there may be a central element at the same time. When an element is considered to be "fixed to" another element, it may be directly fixed to the other element or there may be a central element at the same time.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0051] like Figures 1 to 4As shown, the self-sealing non-stop valve 100 provided in some embodiments of the present application includes a first joint assembly 10, and a second joint assembly 20 which is independently arranged relative to the first joint assembly 10 and detachably connected to the first joint assembly 10. The first joint assembly 10 includes a first joint 11, a first rotating disk 12 and a first plug sleeve 13. The first joint 11 is used to connect and communicate with the first pipeline. The first rotating disk 12 is rotatably installed in the first joint 11 and is used to control the on / off of the first joint 11. The first plug sleeve 13 is fixedly connected to the first joint 11 and abuts against the first rotating disk 12, and is used to limit the first rotating disk 12 to the first joint 11. The second joint assembly 20 includes a second joint 21, a second rotating disk 22, a second plug sleeve 23 and a drive sleeve 24. The second joint 21 is used to connect and communicate with the second pipeline. The drive sleeve 24 is It is installed on the second socket 23 and connected to the second joint 21, and is used to limit the second socket 23 to the second joint 21. The second rotating disk 22 is arranged in the driving sleeve 24 and is connected to the second joint 21. In addition, the second rotating disk 22 is abutted against one end of the second socket 23 located in the driving sleeve 24 and is circumferentially limited with the driving sleeve 24, and is used to control the connection / disconnection between the second socket 23 and the second joint 21; wherein the second socket 23 can be inserted into the first socket 13 and clamped with the first rotating disk 12, so as to control the connection / disconnection between the first joint 11 and the second socket 23 under the drive of the second socket 23. Here, a first retaining rib 120 is formed on the first rotating disk 12, and a retaining block 230 is formed on the second socket 23. When the retaining block 230 can abut against the first rotating disk 12 and limit the insertion depth of the second socket 23 into the first socket 13, in the rotation direction of the first rotating disk 12, a position interference is formed between the retaining block 230 and the first retaining rib 120, so that the second socket 23 can drive the first rotating disk 12 to rotate in the first joint 11 through the push of the retaining block 230 on the first retaining rib 120.

[0052] As can be seen from the above, the self-sealing check valve 100 can be connected to and communicated with the first pipeline by the first joint 11, and the second joint 21 can be connected to and communicated with the second pipeline. The first joint 11 is opened / closed by driving the first rotating disk 12 to rotate in the first joint 11 by the second plug sleeve 23, and the second rotating disk 22 is driven to rotate by the driving sleeve 24 to realize the opening / closing of the second joint 21, so that the self-sealing check valve 100 can realize the disassembly and assembly between the first pipeline and the second pipeline, and has the function of two-way sealing, and the various components of the self-sealing check valve 100 can be made of plastic material, which is low in cost; in this process, the control of on / off between the first joint 11 and the second joint 21 can be realized only after the first joint assembly 10 and the second joint assembly 20 are assembled in place, so that the self-sealing check valve 100 can be prevented from leaking during the flow switching process between the first pipeline and the second pipeline.

[0053] It should be noted that the first connector 11 can be inserted into the first pipeline, and the assembly connection between the first connector 11 and the first pipeline can be achieved through an interference fit; at the same time, the second connector 21 can also be inserted into the second pipeline, and the assembly connection between the second connector 21 and the second pipeline can be achieved through an interference fit.

[0054] like Figure 5 , Figure 6 As shown, the first connector 11 is provided with a first through hole 111, and the first through hole 111 is arranged at the periphery of the center line of the first connector 11; accordingly, the first rotating disk 12 is provided with a first connecting hole 121, and the first connecting hole 121 is arranged corresponding to the first through hole 111, and the first rotating disk 12 can control the connection / disconnection between the first connecting hole 121 and the corresponding first through hole 111 under the drive of the second plug sleeve 23, and control the connection / disconnection between the first connector 11 and the second plug sleeve 23. That is to say, when the first connecting hole 121 is aligned with the corresponding first through hole 111, the first connecting hole 121 is connected with the corresponding first through hole 111; when the first connecting hole 121 is completely separated from the corresponding first through hole 111, the first connecting hole 121 can be blocked by the entity part of the first connector 11, and the first connector 11 is closed. Here, the number of the first through holes 111 is configured to be two, and the two first through holes 111 are symmetrically arranged relative to the center line of the first joint 11, so that the first rotating disk 12 rotates 90° relative to the first joint 11 to achieve switching control of the connection or disconnection between the first joint 11 and the second plug sleeve 23. It should be noted that the shape and aperture of the first through hole 111 on the first joint 11 can be specifically set according to the needs of use, which will not be elaborated here.

[0055] As preferably, Figure 4 , Figure 5 As shown, the first joint 11 is embedded with a first sealing ring 101 on the periphery of the first through hole 111, and / or the first rotating disk 12 is embedded with a first sealing ring 101 on the periphery of the first connecting hole 121; the first sealing ring 101 can be elastically deformed under the extrusion of the first joint 11 and the first rotating disk 12. In this way, the elastic deformation of the first sealing ring 101 after being compressed can ensure the sealing between the first through hole 111 and the corresponding first connecting hole 121 when on / off, and prevent the leakage of the medium when flowing between the first connecting hole 121 and the first through hole 111. Here, the first sealing ring 101 is embedded in the first joint 11. It can be understood that in other embodiments, the first sealing ring 101 can be embedded in the first rotating disk 12, or the first sealing ring 101 is embedded in both the first joint 11 and the first rotating disk 12 to achieve the purpose of double sealing.

[0056] like Figure 1 , Figure 3 , Figure 4 As shown, the first socket 13 can be first assembled to the first joint 11 by means of threads, and then the connection and fixation between the first socket 13 and the first joint 11 can be achieved by means of welding, so that the first socket 13 can be easily assembled and connected to the first joint 11. Here, a stopper 130 is formed on the first socket 13, and the stopper 130 is abutted against the first rotating disk 12. In this way, the first socket 13 can be assembled and limited to the first rotating disk 12 in the first joint 11 by means of the position interference between the stopper 130 and the first rotating disk 12.

[0057] like Figure 3 , Figure 4 and Figure 6 As shown, the first plug socket 13 and / or the second plug socket 23 are provided with a second sealing ring 102; when the second plug socket 23 passes through the first plug socket 13 and is engaged with the first rotating disk 12, the first plug socket 13 and the second plug socket 23 are assembled and sealed by the second sealing ring 102, so that the sealing between the two when the second plug socket 23 is inserted into the first plug socket 13 can be ensured, and leakage of the medium when flowing between the second plug socket 23 and the first joint 11 is prevented. Here, the second sealing ring 102 is arranged in the first plug socket 13.

[0058] It should be noted that, since the on / off of the first joint 11 is realized by the rotation of the first rotating disk 12 in the first joint 11, the rotation of the first rotating disk 12 in the first joint 11 is driven by the second plug socket 23 inserted into the first plug socket 13, and when the second plug socket 23 is inserted into the first plug socket 13, the second plug socket 23 and the first plug socket 13 are assembled and sealed by the second sealing ring 102. Therefore, when the second plug socket 23 drives the first rotating disk 12 to rotate in the first joint 11 to release the blockage of the first joint 11, the first plug socket 13 and the second plug socket 23 are assembled and sealed by the second sealing ring 102, which can ensure that the self-sealing non-stop valve 100 will not leak during the flow switching process between the first pipeline and the second pipeline.

[0059] like Figure 3 , Figure 4 and Figure 6 As shown, the number of the second sealing rings 102 is configured to be two, and the two second sealing rings 102 are assembled into the first socket 13 in an embedded manner, so that when the second socket 23 is inserted into the first socket 13, the two second sealing rings 102 can be used for assembly and sealing, and the purpose of double sealing can be achieved, thus ensuring the sealing of the assembly between the first socket 13 and the second socket 23.

[0060] As preferably, Figure 3 , Figure 4 and Figure 6 As shown, the first plug sleeve 13 is embedded with a baffle 131 between the two second sealing rings 102, and a baffle 132 is installed on the two second sealing rings 102 on the side away from the first joint 11, so that the baffle 132 and the baffle 131 can prevent the second sealing ring 102 from being pulled out of the first plug sleeve 13, thereby ensuring the stability of the second sealing ring 102 in the first plug sleeve 13. Here, the baffle 132 can be assembled into the first plug sleeve 13 in a snap-fit ​​manner.

[0061] like Figure 1 , Figures 3 to 6 As shown, one of the first plug sleeve 13 and the second plug sleeve 23 is provided with a slot 133, and the other protrudes and forms a boss 232, which can be engaged with the slot 133; wherein the slot 133 includes a first slot portion 1331 and a second slot portion 1332 arranged vertically, and the boss 232 can be engaged from the first slot portion 1331 and rotated into the second slot portion 1332, so as to limit the second plug sleeve 23 to the first plug sleeve 13, and connect the first joint assembly 10 with the second joint assembly 20. In other words, the connection between the first joint assembly 10 and the second joint assembly 20 can be limited by assembling the first plug sleeve 13 and the second plug sleeve 23, which not only simplifies the structure, but also facilitates the user to operate the self-sealing non-stop valve 100. Here, the slot 133 is provided on the first socket 13 , and the boss 232 is provided on the second socket 23 . Specifically, the number of the bosses 232 can be configured to be two, and the two bosses 232 are symmetrically arranged relative to the center line of the second socket 23 .

[0062] like Figure 7 , Figure 8As shown, the second rotating disk 22 is provided with a second through hole 221, and the second through hole 221 is arranged at the periphery of the center line of the second rotating disk 22; wherein, the second plug sleeve 23 is provided with a second connecting hole 231 at one end portion located in the driving sleeve 24, and the second connecting hole 231 is arranged corresponding to the second through hole 221, and the second rotating disk 22 can control the connection / disconnection between the second through hole 221 and the corresponding second connecting hole 231 under the drive of the driving sleeve 24, and control the connection / disconnection between the second joint 21 and the second plug sleeve 23. That is to say, when the second through hole 221 is aligned with the corresponding second connecting hole 231, the second through hole 221 is connected with the corresponding second connecting hole 231; when the second through hole 221 is completely separated from the corresponding second connecting hole 231, the second through hole 221 can be blocked by the entity part of the second plug sleeve 23, and the second joint 21 is closed. Here, the number of the second through holes 221 is configured to be two, and the two second through holes 221 are symmetrically arranged relative to the center line of the second rotating disk 22, so that the second rotating disk 22 rotates 90° relative to the second plug socket 23 to achieve the switching control of the connection or disconnection between the second connector 21 and the second plug socket 23. It should be noted that the shape and aperture of the second through holes 221 on the second rotating disk 22 can be specifically set according to the needs of use, which will not be elaborated here.

[0063] As preferably, Figure 4 , Figure 7 As shown, the second rotating disk 22 is embedded with a third sealing ring 103 on the periphery of the second through hole 221, and / or the second plug sleeve 23 is embedded with a third sealing ring 103 on the periphery of the second connecting hole 231; the third sealing ring 103 can be elastically deformed under the extrusion of the second rotating disk 22 and the second plug sleeve 23, so that the elastic deformation of the third sealing ring 103 can ensure the sealing of the assembly between the second rotating disk 22 and the second plug sleeve 23, and prevent the leakage of the medium when flowing between the second rotating disk 22 and the second plug sleeve 23. Here, the third sealing ring 103 is embedded on the second rotating disk 22. It can be understood that in other embodiments, the third sealing ring 103 can be embedded on the second plug sleeve 23, or the third sealing ring 103 is embedded on the second rotating disk 22 and the second plug sleeve 23 at the same time, so as to achieve the purpose of double sealing.

[0064] As shown in the figure, a fourth sealing ring 104 is provided on the second socket 23 and / or the drive sleeve 24, and the second socket 23 and the drive sleeve 24 can be assembled and sealed by the fourth sealing ring 104, so that the sealing of the assembly between the second socket 23 and the drive sleeve 24 can be ensured, and the leakage of the medium when flowing between the second joint 21 and the second socket 23 can be prevented. Here, the number of the fourth sealing rings 104 is configured to be two, so as to play a double sealing role between the second socket 23 and the drive sleeve 24.

[0065] like Figure 7 , Figure 8 As shown, the second plug sleeve 23 and the drive sleeve 24 are selectively circumferentially limited; specifically: when the second plug sleeve 23 and the drive sleeve 24 are circumferentially limited, the second plug sleeve 23 can drive the first rotating disk 12 to rotate relative to the first joint 11 under the drive sleeve 24, so as to control the connection / disconnection between the first joint 11 and the second plug sleeve 23; when the second plug sleeve 23 and the drive sleeve 24 are released from the circumferential limit, the second rotating disk 22 can rotate relative to the second plug sleeve 23 under the drive sleeve 24, so as to control the connection / disconnection between the second joint 21 and the second plug sleeve 23. In other words, the user can control the connection / disconnection between the first joint 11 and the second plug sleeve 23 and the connection / disconnection between the second joint 21 and the second plug sleeve 23 in turn by driving the drive sleeve to rotate, which not only facilitates the user's operation of the self-sealing check valve 100, but also ensures the sealing of the first joint assembly 10 and the second joint assembly 20 after separation. Here, a protrusion 233 is formed on the second plug sleeve 23, and a groove 241 matching the protrusion 233 is formed in the drive sleeve 24, and the protrusion 233 can be plugged and matched with the groove 241. The protrusion 233 and the groove wall 2411 of the groove 241 are used to selectively limit the circumferential position of the second plug sleeve 23 in the drive sleeve 24, and limit the rotation angle of the drive sleeve 24 relative to the second plug sleeve 23. It should be noted that since the opening / closing of the first joint 11 and the second joint 21 are controlled in sequence, it can be ensured that after the first joint 11 and the second joint 21 are closed respectively, the first joint assembly 10 and the second joint assembly 20 are separated, thereby ensuring the sealing performance of the self-sealing check valve 100 to the first pipeline and the second pipeline during disassembly.

[0066] like Figure 7 , Figure 8As shown, in order to achieve selective rotational limit of the second plug sleeve 23 in the drive sleeve 24, the self-sealing non-stop valve 100 of the present application is equipped with an elastic member 25 in a pre-compressed manner between the second rotating disk 22 and the second joint 21, which is used to push the second rotating disk 22 to abut against the second plug sleeve 23, and form a preset gap between the second joint 21 and the second rotating disk 22 in the flow direction of the medium in the second joint 21; when the drive sleeve 24 drives the second joint 21 to compress the elastic member 25 and abut against the second rotating disk 22 under the drive of external force, the circumferential limit between the drive sleeve 24 and the second plug sleeve 23 is released. In other words, the user can control the circumferential limit between the second plug sleeve 23 and the drive sleeve 24 by pressing the drive sleeve 24, which is convenient for the user to operate. Here, the elastic member 25 is configured as a compression spring, the compression spring portion is inserted into the second joint 21 and plugged with the rib 211 in the second joint 21, and one end of the compression spring inserted into the second joint 21 abuts against the rib 211, while the other end of the compression spring abuts against the rib 211 and the other end of the compression spring abuts against the rib 222 extending from the second rotating disk 22, thereby improving the stability of the compression spring assembly between the second rotating disk 22 and the second joint 21. It is understood that in other embodiments, the elastic member 25 may also be configured as a rubber sleeve or other accessories with high elasticity.

[0067] In summary, in the self-sealing stop valve 100 of the present application, the first joint assembly 10 is connected and communicated with the first pipeline, and the second joint assembly 20 is connected and communicated with the second pipeline. When the first joint assembly 10 and the second joint assembly 20 are separated, the first joint assembly 10 and the second joint assembly 20 can be self-sealed respectively, so that the self-sealing stop valve 100 has a two-way sealing function; and when the first joint assembly 10 and the second joint assembly 20 are connected, the first joint assembly 10 can release the seal of the first pipeline, the second joint assembly 20 can release the seal of the second pipeline, and the first pipeline is connected and communicated with the second pipeline.

[0068] When the second joint assembly 20 needs to be connected to the first joint assembly 10, the second socket 23 can be inserted into the first socket 13 first until the second socket 23 is engaged with the first rotating disk 12. Specifically, the second socket 23 can be driven to rotate to ensure that the second socket 23 is engaged with the first rotating disk 12; thereafter, the driving sleeve 24 is manually screwed. Since the driving sleeve 24 and the second socket 23 are circumferentially limited, the first rotating disk 12 can be driven to rotate in the first joint 11 under the drive of the second socket 23 until the boss 232 is limited by the second groove portion 1332 on the slot 133. At this time, the second socket 23 can be limited by the first socket 13, and the assembly connection between the second joint assembly 20 and the first joint assembly 10 is realized. The first connecting hole 121 on the first rotating disk 12 will be connected with the first through hole 111 on the first joint 11, and the first joint assembly 10 will release the blockage of the first pipeline; then the driving sleeve 24 is manually driven to move toward the second plug sleeve 23, so that the second joint 21 compresses the elastic member 25 to move until the second joint 21 is attached to the second rotating disk 22. At the same time, the driving sleeve 24 slides on the second plug sleeve 23 and releases the circumferential limit between the second plug sleeve 23 and the driving sleeve 24; finally, the driving sleeve 24 is manually screwed, and the driving sleeve 24 is used to drive the second rotating disk 22 to rotate relative to the second plug sleeve 23, so as to release the blockage of the second plug sleeve 23 on the second rotating disk 22, and finally realize the connection between the first pipeline and the second pipeline.

[0069] When it is necessary to remove the first joint assembly 10 and the second joint assembly 20, combined with the connection process between the first joint assembly 10 and the second joint assembly 20, the second joint assembly 20 can be closed first, and then the first joint assembly 10 can be closed, and then the second socket 23 can be driven to be pulled out of the first socket 13. Since the action relationship of the corresponding components in each step is similar to that when the first joint assembly 10 and the second joint assembly 20 are connected, it will not be elaborated here.

[0070] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection claimed by the present invention.

Claims

1. A self-sealing check valve, characterized in that: The self-sealing check valve (100) comprises: A first joint assembly (10) comprises a first joint (11), a first rotating disk (12) and a first plug sleeve (13); the first joint (11) is used to connect and communicate with a first pipeline; the first rotating disk (12) is rotatably mounted in the first joint (11) and is used to control the on / off state of the first joint (11); the first plug sleeve (13) is fixedly connected to the first joint (11) and abuts against the first rotating disk (12) and is used to limit the first rotating disk (12) to the first joint (11); a second joint assembly (20) independently arranged relative to the first joint assembly (10) and detachably connected to the first joint assembly (10), the second joint assembly (20) comprising a second joint (21), a second rotating disk (22), a second plug sleeve (23) and a drive sleeve (24), the second joint (21) being used to connect and communicate with a second pipeline, the drive sleeve (24) being sleeved on the second plug sleeve (23) and connected to the second joint (21) and being used to limit the second plug sleeve (23) to the second joint (21), the second rotating disk (22) being arranged in the drive sleeve (24) and being connected to the second joint (21), and the second rotating disk (22) being abutted against an end portion of the second plug sleeve (23) located in the drive sleeve (24) and being circumferentially limited with the drive sleeve (24) and being used to control the connection / disconnection between the second plug sleeve (23) and the second joint (21); The second plug sleeve (23) can be inserted into the first plug sleeve (13) and engaged with the first rotating disk (12), so as to control the connection / disconnection between the first connector (11) and the second plug sleeve (23) under the drive of the second plug sleeve (23); The first joint (11) is provided with a first through hole (111), and the first through hole (111) is arranged at the periphery of the center line of the first joint (11); The first rotating disk (12) is provided with a first connecting hole (121), the first connecting hole (121) being arranged corresponding to the first through hole (111), and the first rotating disk (12) is capable of controlling the connection / disconnection between the first connecting hole (121) and the corresponding first through hole (111) and controlling the connection / disconnection between the first connector (11) and the second through hole (23) under the drive of the second plug socket (23); The second rotating disk (22) is provided with a second through hole (221), and the second through hole (221) is arranged on the periphery of the center line of the second rotating disk (22); A second connecting hole (231) is provided at one end of the second plug sleeve (23) located inside the driving sleeve (24); the second connecting hole (231) is arranged corresponding to the second through hole (221); and the second rotating disk (22) is capable of controlling the connection / disconnection between the second through hole (221) and the corresponding second connecting hole (231) and controlling the connection / disconnection between the second connector (21) and the second plug sleeve (23) under the drive of the driving sleeve (24); The second plug sleeve (23) and the drive sleeve (24) are selectively limited in circumferential direction; When the second plug sleeve (23) and the driving sleeve (24) are circumferentially limited, the second plug sleeve (23) can, driven by the driving sleeve (24), drive the first rotating disk (12) to rotate relative to the first joint (11), so as to control the connection / disconnection between the first joint (11) and the second plug sleeve (23); When the second plug sleeve (23) and the driving sleeve (24) are released from circumferential restraint, the second rotating disk (22) can be driven by the driving sleeve (24) to rotate relative to the second plug sleeve (23) to control the connection / disconnection between the second connector (21) and the second plug sleeve (23); One of the first plug sleeve (13) and the second plug sleeve (23) is provided with a slot (133), and the other protrudes and forms a convex column (232), wherein the convex column (232) can be engaged with the slot (133); The slot (133) comprises a first slot portion (1331) and a second slot portion (1332) which are vertically arranged, and the boss (232) can be inserted into the first slot portion (1331) and rotated into the second slot portion (1332), so as to limit the second socket (23) into the first socket (13) and connect the first joint assembly (10) with the second joint assembly (20).

2. The self-sealing check valve according to claim 1, characterized in that: The first joint (11) is embedded with a first sealing ring (101) on the periphery of the first through hole (111), and / or the first rotating disk (12) is embedded with a first sealing ring (101) on the periphery of the first communicating hole (121); The first sealing ring (101) is capable of elastic deformation under the pressure of the first joint (11) and the first rotating disk (12).

3. The self-sealing check valve according to claim 1, characterized in that: A second sealing ring (102) is provided on the first plug sleeve (13) and / or the second plug sleeve (23); When the second plug sleeve (23) passes through the first plug sleeve (13) and is engaged with the first rotating disk (12), the first plug sleeve (13) and the second plug sleeve (23) are assembled and sealed via the second sealing ring (102).

4. The self-sealing check valve according to claim 1, characterized in that: A third sealing ring (103) is embedded in the second rotating disk (22) at the periphery of the second through hole (221), and / or the second plug sleeve (23) is embedded in the periphery of the second communicating hole (231); The third sealing ring (103) can be elastically deformed under the pressure of the second rotating disk (22) and the second insert sleeve (23).

5. The self-sealing non-contact valve according to claim 1, characterized in that: A fourth sealing ring (104) is provided on the second plug sleeve (23) and / or the drive sleeve (24), and the second plug sleeve (23) and the drive sleeve (24) can be assembled and sealed via the fourth sealing ring (104).

6. The self-sealing non-contact valve according to claim 1, characterized in that: An elastic member (25) is pre-compressed between the second rotating disk (22) and the second joint (21), and is used to push the second rotating disk (22) against the second plug sleeve (23), so that a preset gap is formed between the second joint (21) and the second rotating disk (22) in the flow direction of the medium in the second joint (21); When the driving sleeve (24) drives the second joint (21) to compress the elastic member (25) and abut against the second rotating disk (22) under the influence of an external force, the circumferential limit between the driving sleeve (24) and the second plug sleeve (23) is released.

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