Connector and transmission system

Abstract

The invention discloses a connector and a transmission system, and relates to the technical field of pipeline connecting devices, the first end of a first connector is used for communicating with a pipeline, a first channel is arranged in the first connector, and a first locking piece is arranged outside the first end of the first connector; the first end of the second connector is used for being communicated with a pipeline, a second channel is formed in the second connector, a second locking piece and a limiting piece are arranged at the second end of the second connector, the second locking piece can move relative to the second connector, the area, located outside the second connector, of the second locking piece is an operation part, and a third channel is formed in the second locking piece. The third channel is located in the second channel, the third channel is arranged in the inserting direction of the first locking piece, and the third channel communicates with the second channel; the limiting piece is used for preventing the second locking piece from being separated from the second connector; according to the joint, the first joint and the second joint can be quickly inserted through the first locking piece and the second locking piece, so that connection and disassembly between pipelines adopting the joint are more convenient.

Description

Technical Field

[0001] The invention relates to the field of pipeline connecting devices, and in particular to a joint and a transmission system. Background Art

[0002] When the working medium in the pipeline is circulated for a long time, failure problems may occur. At this time, if you want to add or replace new working medium, you need to disconnect the adjacent pipelines. However, in the prior art, pipelines are connected together by threaded connections, clamp connections or flange connections. However, the above connection methods make the disassembly between pipelines more cumbersome and time-consuming, which greatly reduces the production efficiency of the production equipment using the above pipelines.

[0003] Therefore, how to improve the efficiency of disassembly and connection between pipelines, and then improve the production efficiency of production devices using pipelines has become a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0004] The object of the present invention is to provide a joint and a transmission system to shorten the efficiency of disassembly and connection between pipelines using the joint of the present invention, thereby improving the production efficiency of a production device using the joint of the present invention.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a joint, comprising:

[0007] a first joint, wherein a first end of the first joint is used to communicate with the pipeline, a first channel for medium circulation is provided inside the first joint, and a first locking member is provided outside the first end of the first joint;

[0008] A second joint, wherein the first end of the second joint is used to communicate with the pipeline, the second joint has a second channel for medium circulation and for the first locking member to be plugged in, the second end of the second joint is provided with a second locking member and a limiting member, the second locking member can move relative to the second joint, the second locking member has an operating portion that can be flush with the outer surface of the second joint, the second locking member is provided with a third channel for the first locking member to pass through, the third channel is located in the second channel, the third channel is arranged along the plugging direction of the first locking member, and the third channel is connected to the second channel; the limiting member is used to prevent the second locking member from being separated from the second joint;

[0009] Among them, the second locking member has a plug-in state and a locked state. When the second locking member is in the plug-in state, the first locking member is aligned with the third channel, and the first locking member can be inserted into the third channel; when the second locking member is in the locked state, the first locking member is offset relative to the third channel, the first locking member is locked with the second locking member, and the first channel and the second channel are connected.

[0010] Preferably, the second locking member and the second joint are slidably matched along the radial direction of the second joint, the limiting member is an elastic member, both ends of the elastic member are respectively connected to the second joint and the second locking member, and the deformation direction of the elastic member is arranged parallel to the radial direction of the second joint;

[0011] Alternatively, the second locking member is connected to the second joint in an axial rotational manner of the second joint.

[0012] Preferably, when the second locking member is in a locked state, the operating portion does not protrude from the second joint.

[0013] Preferably, the first locking member includes a first locking portion and a second locking portion which are sequentially arranged along the axial direction of the first joint, the first locking portion is arranged near the second end of the first joint relative to the second locking portion, a locking groove is formed between the first locking portion and the second locking portion, and the locking groove is locked with the second locking member.

[0014] Preferably, a diameter of the second end of the first locking portion close to the first joint is larger than an inner diameter of the third channel, and the diameter of the first locking portion gradually decreases from the second end of the first joint toward the first end of the first joint.

[0015] Preferably, a first valve for controlling the on-off of the first channel is provided in the first channel; and a second valve for controlling the on-off of the second channel is provided in the second channel.

[0016] Preferably, a first elastic member and a first valve core are sequentially arranged along the axial direction of the first channel, the first elastic member is arranged relative to the first valve core and close to the first end of the first joint, the two ends of the first elastic member are respectively connected to the first valve core and the first joint, the deformation direction of the first elastic member is arranged along the axial direction of the first channel, and the first valve core and the first channel are slidably matched along the axial direction of the first channel; at this time, the first elastic member, the first valve core and the first joint constitute the first valve;

[0017] A second locking member, a second elastic member and a second valve core are sequentially arranged along the axial direction of the second channel, the second locking member, the second elastic member and the second valve core are sequentially arranged from the second end of the second connector toward the first end of the second connector, and the deformation direction of the second elastic member is arranged along the axial direction of the second channel; the second elastic member, the second valve core and the second connector constitute the second valve;

[0018] The second valve core comprises a first valve section and a second valve section which are arranged in sequence from the inside to the outside, the first valve section is fixedly connected to the second joint, the second valve section and the second channel are slidably matched along the axial direction of the second channel, and the two ends of the second elastic member are respectively connected to the second valve section and the second joint;

[0019] Wherein, when the second locking member is in a plugged state, the first valve core is aligned with the first valve section, and the first connector is aligned with the second valve section.

[0020] Preferably, a first seal is provided on the first end sleeve of the first joint, a second seal is provided on the first end sleeve of the first valve core away from the first joint, a third seal is provided between the end of the second valve section close to the second locking member and the second joint, a fourth seal is provided between the first valve section and the second valve section, a fifth seal is provided between the side of the second valve section and the second joint, and a sixth seal is provided on the first end sleeve of the second joint.

[0021] Preferably, a plurality of reinforcing ribs are provided along the circumference of the first valve core; and / or a weight reduction area is provided on the first valve section.

[0022] In addition, the present invention also provides a transmission system, which comprises the connector.

[0023] Compared with the prior art, the present invention has achieved the following technical effects:

[0024] When the two pipelines need to be connected through the first joint and the second joint, the first locking member is first inserted into the second channel, and the second locking member is driven to move in the first direction by the operating part so that the third channel is aligned with the first locking member, and then the first locking member is passed through the third channel. After the first locking member passes through the third channel, the second locking member is driven to move in the opposite direction of the first direction by the operating part, so that the third channel and the first locking member are staggered, so that the first locking member and the second locking member are locked together, thereby realizing the connection of the two pipelines, and the limiting member prevents the second locking member from being separated from the second joint, so that the first locking member and the second locking member can maintain a locked state more stably, thereby making it difficult for the two pipelines to be disconnected;

[0025] When the two pipes connected through the first joint and the second joint need to be disconnected, the second locking member is first driven by the operating part to move in the first direction so that the first locking member is aligned with the third channel, the locking cooperation between the first locking member and the second locking member is released, the first locking member is pulled out of the third channel, and then the first joint is pulled out of the second joint, thereby realizing the disconnection of the two pipes respectively connected with the first joint and the second joint;

[0026] From the above, it can be seen that compared with the pipes connected by threaded connection, clamp connection or flange connection in the prior art, it is obvious that when the pipes are connected by the first joint and the second joint in the present invention, only the first joint needs to be plugged in and the second locking piece needs to be operated during disassembly, which saves many steps of the pipe connection method in the prior art, making the connection between the pipes using the first joint and the second joint in the present invention more convenient to disassemble, and the disassembly efficiency and connection efficiency between the pipes are higher, thereby improving the production efficiency of the production device using the joints in the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 is a schematic diagram of the structure of the joint;

[0029] Figure 2 is a cross-sectional view of the first joint;

[0030] Figure 3 is a cross-sectional view of the second joint;

[0031] Figure 4 is a structural schematic diagram of a second fixing hole;

[0032] Figure 5 is a schematic structural diagram of a first locking member and a second locking member;

[0033] Figure 6 is a structural schematic diagram of a second fixing hole;

[0034] Figure 7 is a top view of the second locking member;

[0035] Figure 8 is a structural schematic diagram of the first valve core;

[0036] Fig. 9 is a structural schematic diagram of the first valve section;

[0037] Fig.10 is a schematic diagram of the structure of the second retaining ring;

[0038] Among them, 1. first joint assembly; 2. second joint assembly; 3. locking structure; 4. first retaining ring; 5. first elastic member; 6. first sealing member; 7. first connecting area; 8. first locking member; 9. first joint; 10. first valve core; 11. second sealing member; 12. second connecting area; 13. mounting groove; 14. second joint; 15. second locking member; 16. elastic member; 17. third sealing member; 18. first valve section; 19. fourth sealing member; 20. second elastic member; 2 1. Sixth sealing member; 22. Second retaining ring; 23. First mounting groove; 24. First passage; 25. Second mounting groove; 26. Third mounting groove; 27. Pin; 28. First fixing hole; 29. ​​Second fixing hole; 30. Second passage; 31. Fourth mounting groove; 32. Fifth mounting groove; 33. Sixth mounting groove; 34. Locking groove; 35. Locking tongue; 36. Operating part; 37. Surface of second joint; 38. First locking part; 39. Second valve section; 40. Seventh mounting groove. DETAILED DESCRIPTION

[0039] 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.

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] like Figures 1 to 10As shown, the present invention discloses a connector, which includes: a first connector 9, the first end of the first connector 9 is used to communicate with the pipeline, the first connector 9 is provided with a first channel 24 for medium circulation, and the first end of the first connector 9 is provided with a first locking member 8 outside; a second connector 14, the first end of the second connector 14 is used to communicate with the pipeline, the second connector 14 is provided with a second channel 30 for medium circulation and for the first locking member 8 to be plugged in, the second end of the second connector 14 is provided with a second locking member 15 and a limiting member, the second locking member 15 can move relative to the second connector 14, the second locking member 15 has an operating portion 36 that can be flush with the outer surface of the second connector 14, and the second locking member 15 is provided with a second locking member 15. 5 is provided with a third channel for the first locking member 8 to pass through, the third channel is located in the second channel 30, the third channel is arranged along the plugging direction of the first locking member 8, and the third channel is communicated with the second channel 30; the limiter is used to prevent the second locking member 15 from being separated from the second connector 14; wherein the second locking member 15 has a plugging state and a locking state, when the second locking member 15 is in the plugging state, the first locking member 8 is aligned with the third channel, and the first locking member 8 can be inserted into the third channel; when the second locking member 15 is in the locking state, the first locking member 8 is staggered relative to the third channel, the first locking member 8 is locked with the second locking member 15, and the first channel 24 is communicated with the second channel 30. The locking structure 3 in the present invention includes the first locking member 8 and the second locking member 15.

[0042] When the two pipelines need to be connected through the first joint 9 and the second joint 14, the first locking member 8 is first inserted into the second channel 30, and the second locking member 15 is driven to move along the first direction through the operating part 36, so that the third channel is aligned with the first locking member 8, and then the first locking member 8 is passed through the third channel. After the first locking member 8 passes through the third channel, the second locking member 15 is driven to move in the opposite direction of the first direction through the operating part 36, so that the third channel and the first locking member 8 are misaligned, so that the first locking member 8 and the second locking member 15 are locked together, thereby realizing the connection of the two pipelines, and the limiting member prevents the second locking member 15 from being separated from the second joint 14, so that the first locking member 8 and the second locking member 15 can maintain a relatively stable locked state, thereby making it difficult for the two pipelines to be disconnected;

[0043] When the two pipes connected through the first joint 9 and the second joint 14 need to be disconnected, the second locking member 15 is first driven by the operating portion 36 to move along the first direction so that the first locking member 8 is aligned with the third channel, the locking cooperation between the first locking member 8 and the second locking member 15 is released, the first locking member 8 is pulled out of the third channel, and then the first joint 9 is pulled out of the second joint 14, thereby realizing the disconnection of the two pipes respectively connected with the first joint 9 and the second joint 14;

[0044] From the above, it can be seen that compared with the pipes connected by threaded connection, clamp connection or flange connection in the prior art, it is obvious that when the pipes are connected by the first joint 9 and the second joint 14 in the present invention, only the first joint 9 needs to be plugged in and the second locking member 15 needs to be operated during disassembly, which saves many steps of the pipe connection method in the prior art, making the connection between the pipes using the first joint 9 and the second joint 14 in the present invention more convenient to disassemble, and the disassembly efficiency and connection efficiency between the pipes are higher, thereby improving the production efficiency of the production device using the joints in the present invention.

[0045] Among them, the type of medium flowing in the first channel 24 and the second channel 30 can be gas, liquid or solid particles as needed. The second end of the first joint 9 does not refer to the end of the second end of the first joint 9, which specifically refers to the area on the first joint 9 except for the area connected to the pipeline; similarly, the second end of the second joint 14 also refers to the area on the second joint 14 except for the area connected to the pipeline. The shape of the first joint 9 and the second joint 14 is not limited to cylindrical, and the first joint 9 and the second joint 14 can also be elbow-shaped, that is, the first joint 9 or the second joint 14 includes two cylindrical structures perpendicular to each other, and the two cylindrical structures are connected by an arc transition structure, and the two cylindrical structures and the arc transition structure are provided with passages connected in sequence. In addition, if the working conditions permit, the first joint 9 and the second joint 14 can also be made of non-hard materials. The first end of the first joint 9 is connected to the pipeline through the first connection area 7, and the first connection area 7 is located outside the first end of the first joint 9; similarly, the first end of the second joint 14 is connected to the pipeline through the second connection area 12, and the second connection area 12 is located outside the first end of the second joint 14. The first connection area 7 and the second connection area 12 can be specifically a threaded structure, a block, etc. When the first connection area 7 and the second connection area 12 are threads, the threads can specifically adopt the ISO 6149-3 standard thread structure.

[0046] The plug-in state refers to the state from when the first locking member 8 is about to enter the second channel 30 to before the first locking member 8 and the second locking member 15 are locked and matched, and the first connector 9 is about to be separated from the second connector 14, that is, when the first locking member 8 and the second locking member 15 are in contact and locked, the first locking member 8 is aligned with the third channel; and when the second locking member 15 is in the plug-in state, since the first connector 9 and the second connector 14 are not connected together, the first channel 24 and the second channel 30 are not connected in the connected state, even if the first channel 24 and the second channel 30 are not connected. The first locking member 8 is aligned with the third channel means that in this state, the first locking member 8 can smoothly enter the third channel after entering the second channel 30 to complete the subsequent locking with the second locking member 15. When the first connector 9 is not connected to the second connector 14, and after the first locking member 8 and the second locking member 15 complete the locking and matching, the first locking member 8 is offset relative to the third channel. The offset setting of the first locking member 8 and the third channel means that the flow cross-section of the third channel exposed to the first locking member 8 is smaller than the cross-section of the first locking member 8. That is, at this time, the first locking member 8 cannot withdraw from the third channel and can only continue to maintain a locked fit with the second locking member 15.

[0047] The locking cooperation between the first locking member 8 and the second locking member 15 means that the first locking member 8 and the second locking member 15 are limited to each other (at least in the axial upper limit of the first joint 9). Without changing the position state of the second locking member 15 and without damaging the first locking member 8 and the second locking member 15, the first locking member 8 and the second locking member 15 cannot produce relative displacement, that is, the first joint 9 cannot be separated from the second joint 14.

[0048] Furthermore, when the first joint 9 and the second joint 14 are cylindrical structures, the first locking member 8 is offset relative to the third channel, which can also be understood as the first locking member 8 being eccentrically arranged relative to the third channel. When the first joint 9 and the second joint 14 are connected together, the first joint 9 and the second joint 14 are coaxially arranged. The second locking member 15 can move relative to the second joint 14, which includes the second locking member 15 being able to move radially relative to the second joint 14, or the second locking member 15 being able to rotate axially relative to the second joint 14. Furthermore, when the first joint 9 and the second joint 14 are cylindrical structures, the first joint 9 and the second joint 14 both include a standard external hexagonal structure, which can be used for the installation of the first connection area 7, the second connection area 12 and the respective pipelines, respectively. The first channel 24 adopts a stepped hole, and the inner diameter of the area of ​​the first channel 24 near the first end of the first joint 9 is greater than the outer diameter of the first elastic member 5, and the inner diameter of the area of ​​the first channel 24 near the second end of the first joint 9 is greater than the outer diameter of the first spring.

[0049] Specifically, when the second locking member 15 and the second joint 14 are slidably matched along the radial direction of the second joint 14, the limiting member can be an elastic member 16 such as a spring, and the two ends of the elastic member 16 are respectively connected to the second joint 14 and the second locking member 15. The deformation direction of the elastic member 16 is parallel to the radial setting of the second joint 14. The elastic member 16 applies a force toward the inside of the second joint 14 to the second locking member 15, which prevents the second locking member 15 from detaching from the second joint 14, thereby ensuring the continuous locking match between the first locking member 8 and the second locking member 15; the elastic member 16 can be installed in the first fixing hole 28 on the second joint 14. The sliding match between the second locking member 15 and the second joint 14 can be achieved by providing a slide rail on the second joint 14 and providing a slider that slides with the slide rail on the second locking member 15, or as Figure 5 As shown, a slide groove parallel to the radial direction of the second joint 14 is provided on the second locking member 15, and a pin shaft 27 passes through the slide groove, and both ends of the pin shaft 27 are inserted into the second fixing hole 29 on the second joint 14, thereby limiting the second locking member 15 on the second joint 14, and enabling the second locking member 15 to slide relative to the second joint 14 along the radial direction of the second joint 14. Alternatively, the second locking member 15 can also roll relative to the second joint 14 along the radial direction of the second joint 14.

[0050] And the slide groove can meet the required length of the second locking member 15 between the locked state and the plug-in state. At this time, the operating part 36 is used to drive the second locking member 15 to slide radially along the second joint 14, thereby realizing the switching of the second locking member 15 between the plug-in state and the locked state. When the second locking member 15 is connected to the second joint 14 along the axial rotation of the second joint 14, the limiting member at this time can be a boss or a shoulder arranged on the second joint 14 at both ends of the second locking member 15, or a retaining ring or other structure is arranged on the second joint 14 and in the area at both ends of the second locking member 15. At this time, the third channel is arranged somewhere on the second locking member 15, and by rotating the second locking member 15, the switching of the alignment and misalignment of the first locking member 8 and the third channel can be realized.

[0051] The elastic member 16 can be a right-handed cylindrical straight spring, and the outer diameter of the elastic member 16 is smaller than the diameter of the first fixing hole 28. After the second locking member 15 and the elastic member 16 are assembled on the second joint 14, the compression force of the elastic member 16 is greater than the friction between the second locking member 15 and the mounting groove 13, so that the elastic member 16 pushes the second locking member 15 to reset inside the second joint 14. The pin 27 can be an elastic pin 27, and can be a standard straight slot light elastic cylindrical pin.

[0052] In addition, the limit member may also be other structures that can limit the second locking member 15 from being separated from the second connector 14. It should be noted that although the limit member can limit the second locking member 15 from being separated from the second connector 14, it does not mean that the second locking member 15 and the second connector 14 are detachably connected, that is, the second locking member 15 can be removed from the second connector 14 when needed.

[0053] Furthermore, the operating portion 36 in the present invention may not protrude from the outer surface of the second connector 14 at all times, or may protrude only when the second locking member 15 is in the plugged state. When the second locking member 15 is in the locked state, the operating portion 36 does not protrude from the outer wall surface of the second connector 14, that is, it remains flush with the outer wall surface of the second connector 14, so that the operating portion 36 will not be accidentally touched by other structures, and the problem of accidentally touching the operating portion 36 during the connection process between the first connector 9 and the second connector 14, resulting in the first locking member 8 being aligned with the third channel, the first locking member 8 and the second locking member 15 being accidentally unlocked, and the first connector 9 and the second connector 14 being disconnected, is avoided as much as possible.

[0054] like Figure 5 As shown, the first locking member 8 includes a first locking portion 38 and a second locking portion sequentially arranged along the axial direction of the first joint 9. The first locking portion 38 is arranged relative to the second locking portion and close to the second end of the first joint 9. A locking groove 34 is formed between the first locking portion 38 and the second locking portion. The locking groove 34 is locked with the second locking member 15. Figure 5 As shown, the locking cooperation between the locking groove 34 and the second locking member 15 means that the second locking member 15 is located in the locking groove 34, and the two ends of the second locking member 15 are respectively blocked by the first locking portion 38 and the second locking portion (the second locking member 15 is equivalent to a block at this time), and the first locking member 8 and the second locking member 15 cannot be separated and move relative to each other. In addition, the first locking member 8 can also be set as a block, and the second locking member 15 can be set as a form including the first locking portion 38 and the second locking portion. Figure 5 As shown, the second locking member 15 includes a locking tongue 35 and an operating portion 36. The second locking member 15 is a step-shaped structure, which can also be called an L-shaped cylindrical notch structure. The height of the locking tongue 35 is less than the height of the mounting groove 13. The depth of the locking groove 34 is greater than the radial movement distance of the second locking member 15 along the second joint 14, and the height of the locking groove 34 is greater than the height of the locking tongue 35.

[0055] The diameter of the small end of the first locking portion 38 is smaller than the diameter of the second channel 30 at the first end near the second joint 14, and the diameter of the large end of the first locking portion 38 is smaller than the diameter of the second channel 30 at the second end near the second joint 14. The first locking portion 38 has a conical structure, and the cut-off position of the first locking portion 38 can ensure normal locking and prevent interference.

[0056] Furthermore, the diameter of the first locking portion 38 of the present invention near the second end of the first connector 9 is larger than the inner diameter of the third channel, and the diameter of the first locking portion 38 gradually decreases from the second end of the first connector 9 toward the first end of the first connector 9. At this time, the first locking portion 38 is equivalent to a guide portion, and because the longitudinal section of the first locking portion 38 is conical, it makes it easier for the first locking portion 38 to pass over the second locking member 15, so that the second locking member 15 enters the locking groove 34.

[0057] The movement of the second locking member 15, i.e., the switching between the locked state and the plugged state, can be achieved manually by the operator (when the second locking member 15 is axially rotated relative to the second connector 14) or pushed by the first locking member 8; specifically, Figure 5 As shown, when the second locking member 15 can move radially along the second joint 14 relative to the second joint 14, and the diameter of the second end of the first locking portion 38 close to the first joint 9 of the present invention is greater than the inner diameter of the third channel, the diameter of the first locking portion 38 gradually decreases from the second end of the first joint 9 toward the first end of the first joint 9, when the first locking portion 38 is gradually inserted into the second channel 30, the operating portion 36 gradually moves toward the outside of the second joint 14 under the push of the first guide portion until the first locking portion 38 is aligned with the third channel. After the first locking portion 38 passes through the third channel, the force of the first guide portion on the second locking member 15 disappears, and the operating portion 36 is reset under the action of the elastic member 16, that is, it moves toward the inside of the second joint 14, thereby making the second locking member 15 located in the locking groove 34.

[0058] Furthermore, in the present invention, a first valve for controlling the on-off of the first channel 24 is provided in the first channel 24; a second valve for controlling the on-off of the second channel 30 is provided in the second channel 30; thus, when the two pipelines connected by the first joint 9 and the second joint 14 are disconnected, the first channel 24 and the second channel 30 can be disconnected by the first valve and the second valve respectively, so that the working medium in the first channel 24 and the second channel 30 will not leak from the first joint 9 and the second joint 14, thereby improving the sealing performance of the first joint 9 and the second joint 14. The first valve and the second valve can be specifically valves such as ball valves or butterfly valves that can control the on-off of the first channel 24 and the second channel 30.

[0059] like Figure 2As shown, a first elastic member 5 and a first valve core 10 are sequentially arranged along the axial direction of the first channel 24. The first elastic member 5 is arranged relative to the first end of the first valve core 10 close to the first joint 9. The two ends of the first elastic member 5 are respectively connected to the first valve core 10 and the first joint 9. The deformation direction of the first elastic member 5 is arranged along the axial direction of the first channel 24. The first valve core 10 and the first channel 24 are slidably matched along the axial direction of the first channel 24. At this time, the first elastic member 5, the first valve core 10 and the first joint 9 constitute a first valve. A second locking member 15, a second elastic member 20 and a second valve core are sequentially arranged along the axial direction of the second channel 30. The second locking member 15, the second elastic member 20 and the second valve core are self-locking. The second end of the second connector 14 is sequentially arranged toward the first end of the second connector 14, and the deformation direction of the second elastic member 20 is arranged along the axial direction of the second channel 30; the second elastic member 20, the second valve core and the second connector 14 constitute a second valve; the second valve core includes a first valve section 18 and a second valve section 39 sequentially arranged from the inside to the outside, the first valve section 18 is fixedly connected to the second connector 14, the second valve section and the second channel 30 are slidably matched along the axial direction of the second channel 30, and the two ends of the second elastic member 20 are respectively connected to the second valve section 39 and the second connector 14; wherein, when the second locking member 15 is in the plug-in state, the first valve core 10 is aligned with the first valve section 18, and the first connector 9 is aligned with the second valve section 39.

[0060] When the first valve and the second valve are of the structure described in the above paragraph, after the first joint 9 is inserted into the second channel 30, the first valve core 10 is aligned with the first valve section 18, and the first joint 9 is aligned with the second valve section 39. As the first joint 9 goes deeper, the first valve section 18 contacts the first valve core 10, and the first valve section 18 overcomes the force of the first elastic member 5, so that the first valve core 10 moves toward the first end of the first joint 9, thereby realizing the opening of the first channel 24, and the second end of the first joint 9 contacts the second valve section 39, and the second end of the first joint 9 overcomes the force of the second elastic member 20, so that the second valve section 39 moves toward the first end of the second joint 14, thereby realizing the opening of the second channel 30. At this time, the first channel 24 and the second channel 30 are connected, and the first joint 9 and the second joint 14 are connected. Compared with the first valve and the second valve being structures such as ball valves and butterfly valves, the structures of the first valve and the second valve in the above paragraph are simpler and the manufacturing cost is lower.

[0061] The first elastic member 5 and the second elastic member 20 can be specifically structures with reset performance such as springs. In addition, the two ends of the first elastic member 5 do not necessarily have to be connected to the first valve core 10 and the first joint 9. The two ends of the first elastic member 5 can also be respectively abutted against the first valve core 10 and the first joint 9, and the first elastic member 5 can be directly connected to or abutted against the first joint 9, or can be abutted against or connected to other limiting structures located in the first channel 24. Figure 2As shown, the first channel 24 is provided with a second installation groove 25 in the area near the first end of the first joint 9, and the first retaining ring 4 is installed in the second installation groove 25. The first retaining ring 4 can be an elastic retaining ring for a hole, specifically an elastic retaining ring for a standard hole of type A. At this time, the end of the first elastic member 5 close to the first end of the first joint 9 can be connected to or abut against the first retaining ring 4. Similarly, the two ends of the second elastic member 20 do not necessarily have to be connected to the second valve core and the second joint 14. The two ends of the second elastic member 20 can also be respectively abutted against the second valve core and the second joint 14, and the second elastic member 20 can be directly connected to or abutted against the second joint 14, and can also be abutted or connected to other limiting structures located in the second channel 30. Figure 3 As shown, a fifth mounting groove 32 is provided in the area of ​​the second channel 30 near the first end of the second joint 14, and a second retaining ring 22 is installed in the fifth mounting groove 32. The second retaining ring 22 can be an elastic retaining ring for a hole, specifically an elastic retaining ring for a standard hole of type A. At this time, one end of the second elastic member 20 near the second end of the second joint 14 can be connected to or against the second retaining ring 22.

[0062] The first elastic member 5 can specifically be a right-handed cylindrical straight spring, the inner diameter of the first elastic member 5 is larger than the minimum inner width of the first retaining ring 4, the outer diameter of the first elastic member 5 is smaller than the diameter of the first channel 24, and the force of the first elastic member 5 is larger than the friction between the second sealing member 11 and the first channel 24, so that the first elastic member 5 can push the first valve core 10 to move toward the second end of the first joint 9. The second elastic member 20 is a right-handed cylindrical straight spring, the inner diameter of the second elastic member 20 is smaller than the minimum inner width of the second retaining ring 22, the outer diameter of the second elastic member 20 is smaller than the diameter of the second channel 30, and after the second joint 14 is assembled, the force of the second elastic member 20 is larger than the friction between the second valve section 39 and the third sealing member 17 and the fourth sealing member 19, so as to ensure that the second elastic member 20 can smoothly push the second valve section 39 to move toward the second end of the second joint 14.

[0063] Furthermore, the present invention is provided with a first seal 6 on the outer sleeve of the first end of the first joint 9, a second seal 11 on the outer sleeve of the first end of the first valve core 10 away from the first joint 9, a third seal 17 is provided between the end of the second valve section 39 close to the second locking member 15 and the second joint 14, a fourth seal 19 is provided between the first valve section 18 and the second valve section 39, a fifth seal is provided between the side of the second valve section 39 and the second joint 14, and a sixth seal 21 is provided on the outer sleeve of the first end of the second joint 14. The above-mentioned seals can be specifically a sealing ring or other structures with sealing performance, and the seals include at least one sealing structure. The first seal 6 ensures the sealing between the pipeline connected to the first end of the first joint 9 and the first joint 9. The second seal 11 ensures the sealing between the first joint 9 and the first valve core 10. The sealing between the second valve section 39 and the second joint 14 is ensured by the third seal 17 and the fifth seal, the sealing between the first valve section 18 and the second valve section 39 is ensured by the fourth seal 19, and the sealing between the pipeline connected to the first end of the second joint 14 and the second joint 14 is ensured by the sixth seal 21.

[0064] The first seal 6 and the sixth seal 21 can be specifically ISO 6149-3 standard seal rings; the second seal 11 adopts a high filling rate size to ensure high sealing after the first joint 9 and the second joint 14 are connected; the third seal 17 adopts a high filling rate size to ensure high sealing after the second joint 14 is assembled, and when the first joint 9 and the second joint 14 are connected and disconnected; the fourth seal 19 adopts a high filling rate size to ensure high sealing after the first valve section 18 and the second valve section 39 are assembled; the second installation groove 25 can be specifically an elastic retaining ring groove for an A-type standard hole.

[0065] like Figure 2 As shown, a third mounting groove 26 for mounting the first seal 6 is provided outside the first end of the first joint 9, a first mounting groove 23 for mounting the second seal 11 is provided outside the first valve core 10, two seventh mounting grooves 40 for mounting the third seal 17 and the fifth seal are provided inside the second joint 14, a fourth mounting groove 31 for mounting the fourth seal 19 is provided outside the first valve section 18, and a sixth mounting groove 33 for mounting the sixth seal 21 is provided outside the first end of the second joint 14.

[0066] like Figure 8As shown, the present invention is provided with a plurality of reinforcing ribs along the circumference of the first valve core 10, and the strength of the first valve core 10 is improved by the reinforcing ribs. The first valve core 10 of this shape can also be called a three-rib cross-cylindrical structure; and / or, a weight-reducing area is provided on the first valve section 18, and the weight-reducing area can specifically be a weight-reducing hole, a weight-reducing groove, etc., and the weight and manufacturing cost of the first valve section 18 are reduced by the weight-reducing area, and the required strength of the first valve section 18 is ensured while reducing the weight of the first valve section 18; the first valve section 18 can also be set to a hollow cylindrical structure.

[0067] When assembling Figure 2 When the first joint assembly 1 is shown in the figure, the second sealing member 11 is inserted into the first installation groove 23 outside the first valve core 10 and placed in the first channel 24, and then the first retaining ring 4 is pressed into the second installation groove 25, and the first sealing member 6 is inserted into the third installation groove 26 of the first housing; the first joint assembly 1 includes a first joint 9 and a structure assembled inside and outside the first joint 9. Figure 3 When assembling the second joint 14 shown, the elastic member 16 is installed in the first fixing hole 28, the second locking member 15 is installed in the second joint 14 along the mounting groove 13, and the pin 27 is pressed into the second fixing hole 29, then the third seal 17 is installed, and the fifth seal is installed in the two seventh mounting grooves 40 respectively, then the second valve section 39 is installed in the second channel 30, the second elastic member 20 is installed in the second channel 30, and then the fourth seal 19 is installed in the fourth mounting groove 31 of the first valve section 18, and then the first valve section 18 is installed in the second channel 30, then the second retaining ring 22 is pressed into the fifth mounting groove 32, and finally the sixth seal 21 is installed in the sixth mounting groove 33; the second joint assembly 2 includes the second joint 14 and the structure assembled inside and outside the second joint 14. The joint in the present invention includes a first joint assembly 1 and a second joint assembly 2.

[0068] When it is necessary Figure 2 The first joint component 1 and Figure 3When the second joint assembly 2 in the embodiment is connected (the connection between the first joint assembly 1 and the second joint assembly 2 here can be understood as the connection between the first joint 9 and the second joint assembly 2 in the foregoing text), the first joint 9 is inserted along the second channel 30, and the first joint 9 pushes the second elastic member 20 to move toward the second end of the second joint 14 after contacting the second valve section 39, so that the second channel 30 is connected. At the same time, the first valve section 18 pushes the first elastic member 5 to move toward the second end of the first joint 9 after contacting the first valve core 10, so that the first channel 24 is connected, and the first joint 9 and the third sealing member 17 form a high seal to prevent the medium from leaking from between the first joint 9 and the second joint 14. As the first connector 9 continues to penetrate into the second channel 30, the first locking portion 38 pushes the locking tongue 35 of the second locking member 15 to offset radially along the second connector 14 in the mounting groove, the second locking member 15 compresses the elastic member 16, and the operating portion 36 of the second locking member 15 protrudes out of the surface 37 of the second connector. As the first connector 9 penetrates into the second channel 30 again, the locking tongue 35 is compressed by the reverse thrust of the elastic member 16 and falls into the locking groove 34. The first locking member 8 and the second locking member 15 form a locking fit, and the second locking member 15 is reset. The operating portion 36 is flush with the surface 37 of the second connector to form a hidden state, thereby completing the connection between the first connector assembly 1 and the second connector assembly 2.

[0069] when Figure 2 The first joint component 1 and Figure 3 When the second joint assembly 2 in the assembly is disconnected, the second locking member 15 is pressed toward the inner side of the second joint 14, so that the second locking member 15 moves radially along the second joint 14 in the installation groove, the locking tongue 35 withdraws from the locking groove 34, the elastic member 16 is compressed, and the second valve section 39 is pushed by the second elastic member 20 to push the first joint 9 out of the second channel 30. At the same time, the first elastic member 5 pushes the first valve core 10 out of the second channel 30. As the distance of the first joint 9 withdrawing from the second channel 30 increases, the second locking member 15 is reset by the thrust of the elastic member 16, and the operating part 36 is flush with the surface 37 of the second joint to form a hidden state. At the same time, the first valve core 10 and the first channel 24 form a high seal through the second sealing member 11, the first valve section 18 and the second valve section 39 form a high seal through the fourth sealing member 19, and the first valve core 10 and the second joint 14 form a high seal through the third sealing member 17 and the fifth sealing member, thereby completing the disconnection of the first joint assembly 1 and the second joint assembly 2.

[0070] In summary, the connector of the present invention not only solves the problem of low efficiency in pipeline maintenance and medium replenishment, but also solves the problem of pipeline disassembly leakage and difficulty in unlocking the quick connector, while reducing the production cost of the production device using the connector of the present invention.

[0071] In addition, the present invention also provides a transmission system, which includes the above-mentioned joint. The transmission system can specifically be a hydraulic system, or other production devices that can use the above-mentioned joint.

[0072] And / or means that the text content before and / or and the text content after and / or can exist at the same time or separately; for example, A and / or B includes the three situations of A and B existing at the same time and A or B existing alone.

[0073] The present invention discloses multiple technical solutions, but does not provide any contrary technical inspiration.

[0074] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A joint, characterized in that: The connector comprises: a first joint, wherein a first end of the first joint is used to communicate with the pipeline, a first channel for medium circulation is provided inside the first joint, and a first locking member is provided outside the first end of the first joint; A second joint, wherein the first end of the second joint is used to communicate with the pipeline, the second joint has a second channel for medium circulation and for the first locking member to be plugged in, the second end of the second joint is provided with a second locking member and a limiting member, the second locking member can move relative to the second joint, the second locking member has an operating portion that can be flush with the outer surface of the second joint, the second locking member is provided with a third channel for the first locking member to pass through, the third channel is located in the second channel, the third channel is arranged along the plugging direction of the first locking member, and the third channel is connected to the second channel; the limiting member is used to prevent the second locking member from being separated from the second joint; Among them, the second locking member has a plug-in state and a locked state. When the second locking member is in the plug-in state, the first locking member is aligned with the third channel, and the first locking member can be inserted into the third channel; when the second locking member is in the locked state, the first locking member is offset relative to the third channel, the first locking member is locked with the second locking member, and the first channel and the second channel are connected.

2. The joint according to claim 1, characterized in that The second locking member and the second joint are slidably matched along the radial direction of the second joint, the limiting member is an elastic member, two ends of the elastic member are respectively connected to the second joint and the second locking member, and the deformation direction of the elastic member is arranged parallel to the radial direction of the second joint; Alternatively, the second locking member is rotationally connected to the second joint along the axial direction of the second joint.

3. The joint according to claim 1 or 2, characterized in that: When the second locking member is in a locked state, the operating portion does not protrude from the second joint.

4. The connector according to claim 1, characterized in that The first locking member includes a first locking portion and a second locking portion which are sequentially arranged along the axial direction of the first joint. The first locking portion is arranged near the second end of the first joint relative to the second locking portion. A locking groove is formed between the first locking portion and the second locking portion, and the locking groove is locked with the second locking member.

5. The joint according to claim 4, characterized in that The diameter of the first locking portion at the second end close to the first joint is larger than the inner diameter of the third channel, and the diameter of the first locking portion gradually decreases from the second end of the first joint toward the first end of the first joint.

6. The joint according to claim 1, characterized in that A first valve for controlling the on-off of the first channel is disposed in the first channel; and a second valve for controlling the on-off of the second channel is disposed in the second channel.

7. The joint according to claim 6, characterized in that A first elastic member and a first valve core are sequentially arranged along the axial direction of the first channel. The first elastic member is arranged relative to the first valve core and close to the first end of the first joint. Both ends of the first elastic member are connected to the first valve core and the first joint respectively. The deformation direction of the first elastic member is arranged along the axial direction of the first channel. The first valve core and the first channel are slidably matched along the axial direction of the first channel. At this time, the first elastic member, the first valve core and the first joint constitute the first valve. A second locking member, a second elastic member and a second valve core are sequentially arranged along the axial direction of the second channel, the second locking member, the second elastic member and the second valve core are sequentially arranged from the second end of the second connector toward the first end of the second connector, and the deformation direction of the second elastic member is arranged along the axial direction of the second channel; the second elastic member, the second valve core and the second connector constitute the second valve; The second valve core comprises a first valve section and a second valve section which are arranged in sequence from the inside to the outside, the first valve section is fixedly connected to the second joint, the second valve section and the second channel are slidably matched along the axial direction of the second channel, and the two ends of the second elastic member are respectively connected to the second valve section and the second joint; Wherein, when the second locking member is in the plugged state, the first valve core is aligned with the first valve section, and the first connector is aligned with the second valve section.

8. The joint according to claim 7, characterized in that A first seal is provided on the outer sleeve of the first end of the first joint, a second seal is provided on the outer sleeve of the first end of the first valve core away from the first joint, a third seal is provided between the end of the second valve section close to the second locking member and the second joint, a fourth seal is provided between the first valve section and the second valve section, a fifth seal is provided between the side of the second valve section and the second joint, and a sixth seal is provided on the outer sleeve of the first end of the second joint.

9. The joint according to claim 7, characterized in that A plurality of reinforcing ribs are provided along the circumference of the first valve core; and / or a weight reduction area is provided on the first valve section.

10. A transmission system, characterized in that: The transmission system comprises the connector according to any one of claims 1-9.

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