Double-interlocking quick connector

Abstract

The utility model discloses a double-interlocking quick connector, which belongs to the technical field of pipeline connecting tools, and aims to solve the problem that the existing male and female connectors are poor in interchangeability and generality, the double-interlocking quick connector comprises a first half connector (37) and a second half connector (38), the structures of the first half connector (37) and the second half connector (38) are the same, the first half connector (37) comprises a connector main body (1), and the connector main body (1) is provided with an opening. A buckle (2), an inserting opening (20) and a clamping groove (21) are arranged at the front end of the connector body (1), the buckle (2) of the first half connector (37) can be connected with the clamping groove (21) of the second half connector (38) in a clamped mode, and the buckle (2) of the second half connector (38) can also be connected with the clamping groove (21) of the first half connector (37) in a clamped mode. The first half joint and the second half joint are not divided into male and female parts, and the double-interlocking quick joint has ultrahigh interchangeability and high universality, and is also very convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection tools, in particular to a double interlocking quick connector. Background Art

[0002] In today's modern industrial production, energy supply, chemical production and other fields, quick connectors are widely used, especially in places where fluid pipelines need to be connected quickly, safely and stably. With the development of science and technology, the performance requirements for quick connectors are also increasing.

[0003] In the liquid cooling system, the existing joints are mainly composed of two parts: male and female joints. A sealing flat gasket is used to seal the two joints, and a butt joint is provided at both ends. The joints of the above structure have the following problems and disadvantages:

[0004] 1. Existing quick connectors are basically divided into male and female connectors, which cannot be interchanged and shared.

[0005] 2. The existing joint has no fault protection function (i.e., there is no quick fluid cut-off function in the event of a fault)

[0006] 3. The existing male and female joints have a low safety factor of sealing, and there is no locking device, resulting in a high risk of leakage.

[0007] 4. The joints at both ends of the existing joints are fixed interfaces, which makes it difficult to connect pipes.

[0008] 5. The existing quick connectors have a small flow rate and are difficult to meet the needs of large flow applications. Utility Model Content

[0009] In order to solve the problem of poor interchangeability of the above-mentioned existing male and female connectors, the utility model provides a double interlocking quick connector, which includes a first half connector and a second half connector. The first half connector and the second half connector have the same structure and are mirror images of each other. The first half connector and the second half connector are not male or female, have super high interchangeability, and are extremely convenient to replace.

[0010] The technical solution adopted by the utility model to solve its technical problems is:

[0011] A double interlocking quick connector comprises a first half connector and a second half connector, the first half connector and the second half connector have the same structure and are mirror images of each other, the first half connector comprises a connector body, the front end of the connector body is provided with a buckle, a socket and a slot, the buckle of the first half connector can pass through the socket of the second half connector and engage with the slot of the second half connector after rotation, and the buckle of the second half connector can also pass through the socket of the first half connector and engage with the slot of the first half connector after rotation.

[0012] The connector body has a cylindrical structure, and the front end of the connector body is provided with two buckles, two sockets and two slots. The buckles, sockets and slots are arranged in sequence along the circumference of the connector body. The circumferential length of one of the two buckles is greater than the circumferential length of the other buckle, and the circumferential length of one of the two sockets is greater than the circumferential length of the other socket.

[0013] A main flow channel and a valve core are provided inside the joint body. The main flow channel extends in the front-to-back direction. A handle is provided outside the joint body. The handle is connected to the valve core through a rotating shaft. The axis of the rotating shaft is perpendicular to the axis of the main flow channel. The handle can drive the valve core to rotate. Turning the handle can put the valve core in an open or closed state.

[0014] The valve core contains an internal flow channel, the outer surface of the valve core is a spherical surface, and sealing valve seats are provided at the front and rear ends of the valve core. When the valve core is in an open state, the main flow channel is connected with the internal flow channel; when the valve core is in a closed state, the main flow channel is not connected with the internal flow channel.

[0015] The handle is in the shape of an elongated strip, the length direction of the handle is perpendicular to the axis of the rotating shaft, one end of the handle is connected and fixed to the rotating shaft, and the other end of the handle is provided with a first locking mechanism. When the first locking mechanism is in a locked state, the handle cannot drive the valve core to rotate; when the first locking mechanism is in an unlocked state, the handle can drive the valve core to rotate.

[0016] The first locking mechanism comprises a first pin, a first spring and a first ball, the other end of the handle is provided with a first pin hole and a first through hole, one end of the first pin is located in the first pin hole, the other end of the first pin is located outside the first pin hole, one end of the first pin is connected to the first spring, the first spring is located in the first pin hole, the first pin can reciprocate along the axis direction of the first pin, the first spring can provide a restoring force to the first pin, the axis of the first pin is perpendicular to the length direction of the handle, the axis of the first pin is perpendicular to the axis of the rotating shaft, the outer surface of the first pin is provided with a first annular groove, the first through hole connects the lower surface of the handle and the first pin hole, a platform is provided on the outer surface of the joint body, the upper surface of the platform is perpendicular to the axis of the rotating shaft, the lower surface of the handle and the upper surface of the platform are arranged parallel and spaced apart, the upper surface of the platform comprises an open position slot and a closed position slot, the open position slot and the closed position slot are arranged spaced apart;

[0017] When the handle is in the maximum open position, the length direction of the handle is parallel to the axial direction of the main flow channel, and the first through hole corresponds to the open position slot; when the first locking mechanism is in a locked state, the upper part of the first ball is located in the first through hole, the lower part of the first ball is located in the open position slot, the first ball and the first annular groove are staggered along the axial direction of the first pin, and the first ball cannot be separated from the open position slot; after pressing the first pin, when the first ball and the first annular groove are directly opposite to each other along the axial direction of the first pin, the first locking mechanism is in an unlocked state, the first ball can be separated from the open position slot, and during the rotation of the handle, the upper part of the first ball is located in the first annular groove, and the lower part of the first ball is located in the first through hole;

[0018] When the handle is in the maximum closed position, the length direction of the handle is perpendicular to the axial direction of the main channel, and the first through hole corresponds to the closed position groove; when the first locking mechanism is in a locked state, the upper part of the first ball is located in the first through hole, the lower part of the first ball is located in the closed position groove, the first ball and the first annular groove are staggered along the axial direction of the first pin, and the first ball cannot be separated from the closed position groove; after pressing the first pin, when the first ball and the first annular groove are facing each other along the axial direction of the first pin, the first locking mechanism is in an unlocked state, the first ball can be separated from the closed position groove, and during the rotation of the handle, the upper part of the first ball is located in the first annular groove, and the lower part of the first ball is located in the first through hole.

[0019] An interlocking pin and a locking pin hole are provided at the front of the joint body of the first half joint, and a part of the interlocking pin is located in the locking pin hole. An interlocking hole is provided at the front of the joint body of the second half joint. When the handle is in the maximum open position, the interlocking pin is in an extended state, and the interlocking pin of the first half joint is matched and inserted in the interlocking hole of the second half joint; when the handle is in the maximum closed position, the interlocking pin is in a retracted state, and the interlocking pin of the first half joint is disengaged from the interlocking hole of the second half joint.

[0020] The axis of the interlocking pin is parallel to the main flow channel, and the outer peripheral surface of the rear part of the interlocking pin is provided with multiple external tooth grooves, and the multiple external tooth grooves are arranged along the axial direction of the interlocking pin. One end of the handle is provided with external meshing teeth, and the external meshing teeth are meshed and connected with the multiple external tooth grooves. Rotating the handle can move the interlocking pin along the axial direction of the interlocking pin.

[0021] The front part of the joint body is also provided with a second pin, a second spring, a second ball, a second pin hole and a second through hole, the axis of the second pin is parallel to the axis of the interlocking pin, the front end of the second pin can extend out of the front end surface of the joint body, the rear end of the second pin is connected to the second spring, the outer circumference of the second pin is provided with a second annular groove, the second pin can move forward and backward, the second spring can provide a restoring force to the second pin, the second pin and the second spring are both located in the second pin hole, the second through hole connects the second pin hole and the locking pin hole, and the outer circumference of the interlocking pin is provided with a third annular groove;

[0022] When the second pin is in the extended state, the upper part of the second ball is located in the second through hole, the lower part of the second ball is located in the third annular groove, the interlocking pin is in the retracted state, the interlocking pin cannot move forward and backward, and the handle cannot rotate;

[0023] When the second pin is in a retracted state, the upper portion of the second ball is located in the second annular groove, the lower portion of the second ball is located in the second through hole, the interlocking pin can move forward and backward, the interlocking pin can be in an extended state, and the handle can rotate.

[0024] The first half joint also contains an interface, which is a cylindrical structure. The front end of the interface is sleeved in the rear end of the joint body. The front end outer surface of the interface is provided with a fourth annular groove, and the front end inner surface of the joint body is provided with a fifth annular groove. A plurality of third balls are provided between the joint body and the first half joint. The plurality of third balls are arranged at intervals along the circumference of the joint body. A part of the third balls is located in the fourth annular groove, and another part of the third balls is located in the fifth annular groove. The interface can rotate 360° relative to the joint body with the axis of the joint body as the axis. A screw hole for installing the third ball is provided on the interface. The screw hole connects the fourth annular groove and the outer surface of the interface, and a screw is provided in the screw hole.

[0025] The beneficial effects of the utility model are:

[0026] 1. It is convenient for the maintenance and inspection of the entire pipeline. In an emergency, only one side is needed to quickly cut off the pipeline, which has a very practical protection function.

[0027] 2. The valve core presents a full-diameter structure. Through the careful optimization design of the internal flow channel, the fluid resistance is reduced to ensure the high flow rate of the fluid in the quick-connect joint.

[0028] 3. The interlocking pin-hidden structural design greatly reduces the overall size, solves the problem of limited space and operating space, and saves manufacturing costs.

[0029] 4. The unique detachable and extended lever handle design solves the problem of difficult operation of large-diameter ball valve handles. The ball valve structure design at the fluid channel port reduces the torque for closing and opening the fluid.

[0030] 5. The handle anti-misoperation locking structure, double interlocking structure and double sealing design greatly improve the safety of the joint. When operating, the two joints can only be separated when both ends are closed at the same time.

[0031] 6. The filling steel ball movable interface structure design is quick to install and disassemble, and the processing and manufacturing cost is also relatively low.

[0032] 7. The connector body and the interface are two independent parts. The connector body can be changed into different interfaces according to actual needs, so as to realize the transformation of different connection methods (internal and external threads, chucks, pagodas, etc.). The annular pipe thread interface and the cabinet distribution manifold pagoda interface can realize effective connection.

[0033] 8. By adopting advanced sealing technology and locking mechanism, the quick connection and disassembly of the joint is realized, while ensuring good sealing performance and durability. In addition, it also has the advantages of small size, low cost and simple structure.

[0034] 9. The main body of the joint is made of high-strength, corrosion-resistant stainless steel material, and the casting manufacturing process is used, which can effectively withstand the challenges of different fluid media and working environments. The seal is made of high-quality rubber material with good sealing performance and wear resistance. The locking mechanism and connecting parts are made of stainless steel metal materials with good fatigue resistance to ensure the stability and durability of the joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0036] Figure 1 It is a cross-sectional schematic diagram of the first half joint of the double interlocking quick joint of the utility model.

[0037] Figure 2 It is a schematic diagram of the process of connecting the first half joint and the second half joint.

[0038] Figure 3 It is a cross-sectional schematic diagram of the connection between the first half joint and the second half joint.

[0039] Figure 4 is a schematic diagram of the connector body of the first connector half.

[0040] Figure 5 is a schematic diagram of the connector body of the second connector half.

[0041] Figure 6 is a schematic diagram of the first locking mechanism.

[0042] Figure 7 It is a magnified schematic view of part A when the first locking mechanism is in the locked state. Figure 6

[0043] Figure 8 It is a magnified schematic view of part A when the first locking mechanism is in the unlocked state. Figure 6

[0044] Fig. 9 It is a schematic view when the second pin is in the extended state.

[0045] Fig.10 It is a schematic view when the second pin is in the retracted state.

[0046] Fig.11 It is a schematic view when the rear part of the interface has an internal and external thread structure.

[0047] Fig.12 It is a schematic view when the rear part of the interface has a chuck structure.

[0048] Fig.13 It is a schematic view when the rear part of the interface has a pagoda structure.

[0049] Explanation of reference numerals:

[0050] 1. Joint body; 2. Snap; 3. Spool; 4. Inner sealing ring; 5. Second pin; 6. Interlocking pin; 7. Outer sealing ring; 8. O-ring; 9. Rotating shaft; 10. Handle; 11. First pin; 12. Third ball; 13. Interface; 14. Sealing valve seat; 15. Screw; 16. First spring; 17. First ball; 18. Second spring; 19. Second ball; 20. Socket; 21. Card slot; 22. Main flow channel; 23. Inner flow channel; 24. First pin hole; 25. First through hole; 26. Platform; 27. Open position groove; 28. Closed position groove; 29. First annular groove; 30. External meshing teeth; 31. Second pin hole; 32. Second through hole; 33. Second annular groove; 34. Locking pin hole; 35. Third annular groove; 36. Fourth annular groove; 37. First half joint; 38. Second half joint; 39. Interlocking hole. Detailed implementation manners

[0051] It should be noted that, without conflict, the embodiments and features in the embodiments of this application can be combined with each other. The following will describe the present invention in detail with reference to the drawings and in combination with the embodiments.

[0052] For the convenience of understanding and description, the following description of the present invention adopts an absolute positional relationship. Without special explanation, the orientation word "upper" represents Figure 1 the upper side direction in Figure 1In the downward direction, the azimuth word "left" refers to the direction perpendicular to the Figure 1 paper surface of Figure 1 and pointing towards the inside of the paper surface, and the azimuth word "right" refers to the direction perpendicular to the Figure 1 paper surface of Figure 1 and pointing towards the outside of the paper surface, and the azimuth word "front" refers to the

[0053] right side direction in Figures 1 to 5 and the azimuth word "rear" refers to the

[0054] left side direction in

[0055] . The present utility model is described from the observation perspective of the reader or user, but the above azimuth words should not be understood or interpreted as limiting the protection scope of the present utility model. Regarding the dimensions and angles of the components therein, those skilled in the art can specifically determine them according to actual needs.

[0056] As Figures 4 to 5 shown, a double interlocking quick connector according to an embodiment of the present utility model includes a first half joint 37 and a second half joint 38. The first half joint 37 and the second half joint 38 have the same structure and are mirror images of each other. The first half joint 37 includes a joint body 1. A buckle 2, a socket 20, and a slot 21 are provided at the front end of the joint body 1. The buckle 2 of the first half joint 37 can pass through the socket 20 of the second half joint 38 and be engaged with the slot 21 of the second half joint 38 after rotation. The buckle 2 of the second half joint 38 can also pass through the socket 20 of the first half joint 37 and be engaged with the slot 21 of the first half joint 37 after rotation.

[0054] The first half joint 37 and the second half joint 38 have the same structure and are mirror images of each other. The joint bodies 1 of the first half joint 37 and the second half joint 38 are not divided into male and female, and can be stably and ingeniously connected with another completely identical joint body 1 by rotation, with extremely high interchangeability and common use, and it is also extremely convenient to replace. It can ingeniously display the outstanding characteristics of the full-bore large-flow ball valve and can be widely used for connecting water pipes, backplate condensation equipment, spray heads, equipment or other pipelines, and then quickly and reliably realize the transportation and regulation of fluids.

[0055] The joint body 1 is in a cylindrical structure with both ends open. Two buckles 2, two sockets 20, and two slots 21 are provided at the front end of the joint body 1. The two buckles 2, the two sockets 20, and the two slots 21 are evenly spaced along the circumferential direction of the joint body 1. The cross-sections of the buckle 2 and the slot 21 are both in an L-shaped structure. The buckle 2, the socket 20, and the slot 21 are arranged in sequence along the circumferential direction of the joint body 1.

[0056] As Figures 4 to 5As shown, the circumferential length of one of the two buckles 2 is greater than the circumferential length of the other buckle 2, and the circumferential length of one of the two sockets 20 is greater than the circumferential length of the other socket 20. When the first half joint 37 and the second half joint 38 are connected, the long buckle 2 is correspondingly inserted into the long socket 20, and the short buckle 2 is correspondingly inserted into the short socket 20, so that the corresponding connection between the interlocking pin 6 and the locking pin hole 34 described below can be achieved.

[0057] A main flow channel 22 and a valve core 3 are provided in the joint body 1. The main flow channel 22 extends in the front-to-back direction. A handle 10 is provided outside the joint body 1. The handle 10 is connected to the valve core 3 through a rotating shaft 9. The rotating shaft 9 passes through the joint body 1. An O-ring 8 is connected between the rotating shaft 9 and the joint body 1. The axis of the rotating shaft 9 is perpendicular to the axis of the main flow channel 22. The handle 10 can rotate and drive the valve core 3 to rotate around the axis of the rotating shaft 9. After the handle 10 is rotated, the valve core 3 can be in an open or closed state.

[0058] The valve core 3 is a cylindrical structure and contains an inner flow channel 23. The axis of the inner flow channel 23 intersects and is perpendicular to the axis of the rotating shaft 9. The outer surface of the valve core 3 is a part of a sphere. Sealing valve seats 14 are provided at the front and rear ends of the valve core 3. When the valve core 3 is in an open state, the main flow channel 22 is connected with the inner flow channel 23; when the valve core 3 is in a closed state, the main flow channel 22 is not connected with the inner flow channel 23.

[0059] like Figures 6 to 8 As shown, the handle 10 is in a long strip structure, the length direction of the handle 10 is perpendicular to the axis of the rotating shaft 9, one end of the handle 10 is connected and fixed to the rotating shaft 9, and the other end of the handle 10 is provided with a first locking mechanism. When the first locking mechanism is in a locked state, the handle 10 cannot rotate and cannot drive the valve core 3 to rotate; when the first locking mechanism is in an unlocked state, the handle 10 can rotate and drive the valve core 3 to rotate. The first locking mechanism can prevent misoperation.

[0060] The first locking mechanism comprises a first pin 11, a first spring 16 and a first ball 17. The other end of the handle 10 is provided with a first pin hole 24 and a first through hole 25. One end of the first pin 11 is located in the first pin hole 24, and the other end of the first pin 11 is located outside the first pin hole 24. One end of the first pin 11 is connected to the first spring 16, and the first spring 16 is located in the first pin hole 24. The first pin 11 can reciprocate along the axial direction of the first pin 11, and the first spring 16 can provide a restoring force to the first pin 11. The axis of the first pin 11 is aligned with the length direction of the handle 10. The first pin 11 is perpendicular to the axis of the rotating shaft 9, the first pin 11 is provided with a first annular groove 29 on its outer surface, the first through hole 25 is connected to the lower surface of the handle 10 and the first pin hole 24, the axis of the first through hole 25 is perpendicular to the axis of the rotating shaft 9, a platform 26 is provided on the outer surface of the joint body 1, the upper surface of the platform 26 is perpendicular to the axis of the rotating shaft 9, the lower surface of the handle 10 and the upper surface of the platform 26 are arranged parallel to each other, the upper surface of the platform 26 contains an open position groove 27 and a closed position groove 28, and the open position groove 27 and the closed position groove 28 are arranged at intervals. The open position groove 27 is located behind the rotating shaft 9, and the closed position groove 28 is located on the right side of the rotating shaft 9.

[0061] When the handle 10 is in the maximum open position, the valve core 3 is in the open state, the length direction of the handle 10 is parallel to the axial direction of the main channel 22, and the first through hole 25 corresponds to the open position groove 27; when the first locking mechanism is in the locked state, the upper part of the first ball 17 is located in the first through hole 25, and the lower part of the first ball 17 is located in the open position groove 27, and the first ball 17 and the first annular groove 29 are staggered along the axial direction of the first pin 11, and the first pin 11 prevents the first ball 17 from escaping from the open position groove 27; after pressing the first pin 11, when the first ball 17 and the first annular groove 29 are facing each other along the axial direction of the first pin 11, the first locking mechanism is in the unlocked state, and the first ball 17 can detach from the open position groove 27, and during the rotation of the handle 10, the upper part of the first ball 17 is located in the first annular groove 29, and the lower part of the first ball 17 is located in the first through hole 25.

[0062] When the handle 10 is in the maximum closed position, the valve core 3 is in a closed state, the length direction of the handle 10 is perpendicular to the axial direction of the main channel 22, and the first through hole 25 corresponds to the closed position groove 28; when the first locking mechanism is in a locked state, the upper part of the first ball 17 is located in the first through hole 25, and the lower part of the first ball 17 is located in the closed position groove 28. The first ball 17 and the first annular groove 29 are staggered along the axial direction of the first pin 11, and the first pin 11 prevents the first ball 17 from escaping from the closed position groove 28; after pressing the first pin 11, when the first ball 17 and the first annular groove 29 are facing each other along the axial direction of the first pin 11, the first locking mechanism is in an unlocked state, and the first ball 17 can escaping from the closed position groove 28. During the rotation of the handle 10, the upper part of the first ball 17 is located in the first annular groove 29, and the lower part of the first ball 17 is located in the first through hole 25.

[0063] like Figures 6 to 8 As shown, the handle 10 is usually in the maximum open position or the handle 10 is in the maximum closed position. When the handle 10 needs to be rotated, the operating handle 10 can only be rotated by pressing the first pin 11 to put the first locking mechanism in the unlocked state, which can prevent misoperation.

[0064] like Figure 1 As shown, an inner sealing ring 4 is provided at the inner side of the front end of the joint body 1, and an outer sealing ring 7 is provided at the outer side of the front end of the joint body 1. The cross-sections of the inner sealing ring 4 and the outer sealing ring 7 are both U-shaped structures, and the fluid pressure itself can be used to enhance the sealing effect. When the first half joint 37 and the second half joint 38 are docked, the inner sealing ring 4 of the first half joint 37 and the inner sealing ring 4 of the second half joint 38 are correspondingly sealed and connected, and the outer sealing ring 7 of the first half joint 37 and the outer sealing ring 7 of the second half joint 38 are correspondingly sealed and connected, and the secondary sealing effect ensures the risk of leakage.

[0065] like Figures 9 and 10 As shown, the front part of the joint body 1 of the first half joint 37 is provided with an interlocking pin 6 and a locking pin hole 34, a part of the interlocking pin 6 is located in the locking pin hole 34, and the front part of the joint body 1 of the second half joint 38 is provided with an interlocking hole 39. When the handle 10 is located at the maximum open position, the interlocking pin 6 is in an extended state, and the interlocking pin 6 of the first half joint 37 can be matched and inserted in the interlocking hole 39 of the second half joint 38; when the handle 10 is located at the maximum closed position, the interlocking pin 6 is in a retracted state, and the interlocking pin 6 of the first half joint 37 is disengaged from the interlocking hole 39 of the second half joint 38.

[0066] The interlocking pin 6 is located inside the side wall of the joint body 1, the axis of the interlocking pin 6 is parallel to the main flow channel 22, a plurality of external tooth grooves are arranged on the outer peripheral surface of the rear portion of the interlocking pin 6, and the plurality of external tooth grooves are arranged at intervals along the axial direction of the interlocking pin 6. An external meshing tooth 30 is arranged on the outside of one end of the handle 10, and the external meshing tooth 30 is meshedly connected with the plurality of external tooth grooves. The rotation of the handle 10 can move the interlocking pin 6 along the axial direction of the interlocking pin 6.

[0067] Because when the handle 10 is in the maximum open position, the interlocking pin 6 of the joint body 1 of the first half joint 37 is inserted into the locking pin hole 34 of the joint body 1 of the second half joint 38, the first half joint 37 cannot rotate relative to the second half joint 38, that is, one of the valve cores 3 in the first half joint 37 and the second half joint 38 is in an open state, and the first half joint 37 and the second half joint 38 cannot be separated, which can avoid leakage of fluid medium due to misoperation.

[0068] like Figures 9 and 10 As shown, the front part of the joint body 1 is also provided with a second pin 5, a second spring 18, a second ball 19, a second pin hole 31 and a second through hole 32. The second pin 5 and the interlocking pin 6 are arranged at intervals along the circumference of the joint body 1. The axis of the second pin 5 is parallel to the axis of the interlocking pin 6. The front end of the second pin 5 can extend out of the front end surface of the joint body 1. The rear end of the second pin 5 is connected to the second spring 18. The outer peripheral surface of the second pin 5 is provided with a second annular groove 33. The second pin 5 can move forward and backward. The second spring 18 can provide a restoring force to the second pin 5. The second pin 5 and the second spring 18 are both located in the second pin hole 31. The axis of the second through hole 32 is perpendicular to the axis of the interlocking pin 6. The second through hole 32 connects the second pin hole 31 and the locking pin hole 34. The outer peripheral surface of the interlocking pin 6 is provided with a third annular groove 35.

[0069] When the second pin 5 is in the extended state, the upper part of the second ball 19 is located in the second through hole 32, the lower part of the second ball 19 is located in the third annular groove 35, the interlocking pin 6 is in the retracted state, the second pin 5 prevents the interlocking pin 6 from moving forward and backward, and the handle 10 cannot rotate. At this time, the handle 10 is in the maximum closed position;

[0070] When the second pin 5 is in a retracted state, the upper part of the second ball 19 can be located in the second annular groove 33, the lower part of the second ball 19 is located in the second through hole 32, the interlocking pin 6 can be in an extended state, the interlocking pin 6 can move back and forth, and the handle 10 can rotate. At this time, the handle 10 can be located in the maximum open position.

[0071] like Figures 9 and 10As shown, when the first half joint 37 and the second half joint 38 are separated (i.e., not connected), the second pin 5 is in an extended state, the second pin 5 locks the handle 10, the handle 10 is in the maximum closed position, the valve core 3 is in a closed state, and the handle 10 cannot rotate. After the first half joint 37 and the second half joint 38 are connected, the second pin 5 is pressed back, the second pin 5 is in a retracted state, the second pin 5 cannot lock the handle 10, and the handle 10 can rotate. In this way, the valve core 3 can be prevented from being opened when the first half joint 37 and the second half joint 38 are separated, and the leakage of the fluid medium caused by misoperation can be avoided.

[0072] like Figure 1 As shown, the first half joint 37 also includes an interface 13, which is sealed and connected to the joint body 1 through a sealing ring. The interface 13 is a cylindrical structure, and the front end of the interface 13 is sleeved in the rear end of the joint body 1. The front end outer surface of the interface 13 is provided with a fourth annular groove 36, and the front end inner surface of the joint body 1 is provided with a fifth annular groove. A plurality of third balls 12 are arranged between the joint body 1 and the first half joint 37, and the plurality of third balls 12 are arranged at intervals along the circumference of the joint body 1. A portion of the third balls 12 is located in the fourth annular groove 36, and another portion of the third balls 12 is located in the fifth annular groove. The interface 13 can smoothly rotate 360° relative to the joint body 1 with the axis of the joint body 1 as the axis.

[0073] The interface 13 is provided with a screw hole for installing the third ball 12, the screw hole is connected to the fourth annular groove 36 and the outer surface of the interface 13, and a screw 15 is provided in the screw hole. The third ball 12 can enter the fourth annular groove 36 and the fifth annular groove through the screw hole, and the fourth annular groove 36 and the fifth annular groove are correspondingly connected. After the third ball 12 is installed, the screw 15 can be screwed into the screw hole, and the third ball 12 cannot fall out. Figures 11 to 13 As shown, the rear portion of the interface 13 may be provided with structures such as internal and external threads, a chuck, and a pagoda. The interface 13 is detachably connected to the connector body 1, and the interface 13 of different structures may be replaced as needed.

[0074] The following describes the method for using the double interlocking quick connector.

[0075] Initially, the first half joint 37 and the second half joint 38 are separated, the valve cores 3 of the first half joint 37 and the second half joint 38 are both in a closed state, the handles 10 of the first half joint 37 and the second half joint 38 are both in a maximum closed position, the interlocking pins 6 of the first half joint 37 and the second half joint 38 are both in a retracted state, and the second pins 5 of the first half joint 37 and the second half joint 38 are both in an extended state.

[0076] Then, the head of the first half joint 37 and the head of the second half joint 38 are butted together, and the second pins 5 of the first half joint 37 and the second half joint 38 are both pressed back, that is, the second pins 5 are both in a retracted state. The first pin 11 of the first half joint 37 is pressed, and the first locking mechanism of the first half joint 37 is in an unlocked state, and the handle 10 of the first half joint 37 can rotate and operate the valve core 3 of the first half joint 37. The first pin 11 of the second half joint 38 is pressed, and the first locking mechanism of the second half joint 38 is in an unlocked state, and the handle 10 of the second half joint 38 can rotate and operate the valve core 3 of the second half joint 38.

[0077] The above is only a specific embodiment of the utility model, and it cannot be used to limit the scope of the utility model. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the protection scope of the utility model patent should still fall within the scope of this patent. In addition, the technical features of the utility model can be freely combined with each other, with technical features and technical solutions, and with technical solutions.

Claims

1. A double interlocking quick connector, characterized in that: The double interlocking quick connector comprises a first half connector (37) and a second half connector (38). The first half connector (37) and the second half connector (38) have the same structure and are mirror images of each other. The first half connector (37) comprises a connector body (1). The front end of the connector body (1) is provided with a buckle (2), a socket (20) and a slot (21). The buckle (2) of the first half connector (37) can pass through the socket (20) of the second half connector (38) and be snap-fitted with the slot (21) of the second half connector (38) after rotation. The buckle (2) of the second half connector (38) can also pass through the socket (20) of the first half connector (37) and be snap-fitted with the slot (21) of the first half connector (37) after rotation.

2. The double interlocking quick connector according to claim 1, characterized in that: The joint body (1) is of a cylindrical structure. The front end of the joint body (1) is provided with two buckles (2), two sockets (20) and two slots (21). The buckles (2), the sockets (20) and the slots (21) are arranged in sequence along the circumference of the joint body (1). The circumferential length of one of the two buckles (2) is greater than the circumferential length of the other buckle (2), and the circumferential length of one of the two sockets (20) is greater than the circumferential length of the other socket (20).

3. The double interlocking quick connector according to claim 1, characterized in that: A main flow channel (22) and a valve core (3) are arranged inside the joint body (1). The main flow channel (22) extends in the front-rear direction. A handle (10) is arranged outside the joint body (1). The handle (10) is connected to the valve core (3) via a rotating shaft (9). The axis of the rotating shaft (9) is perpendicular to the axis of the main flow channel (22). The handle (10) can drive the valve core (3) to rotate. Rotating the handle (10) can put the valve core (3) in an open or closed state.

4. The double interlocking quick connector according to claim 3, characterized in that: The valve core (3) contains an inner flow channel (23). The outer surface of the valve core (3) is a spherical surface. Sealing valve seats (14) are provided at both the front and rear ends of the valve core (3). When the valve core (3) is in an open state, the main flow channel (22) is connected to the inner flow channel (23); when the valve core (3) is in a closed state, the main flow channel (22) is not connected to the inner flow channel (23).

5. The double interlocking quick connector according to claim 3, characterized in that: The handle (10) is in the form of an elongated strip. The length direction of the handle (10) is perpendicular to the axis of the rotating shaft (9). One end of the handle (10) is connected and fixed to the rotating shaft (9). The other end of the handle (10) is provided with a first locking mechanism. When the first locking mechanism is in a locked state, the handle (10) cannot drive the valve core (3) to rotate; when the first locking mechanism is in an unlocked state, the handle (10) can drive the valve core (3) to rotate.

6. The double interlocking quick connector according to claim 5, characterized in that: The first locking mechanism comprises a first pin (11), a first spring (16) and a first ball (17); the other end of the handle (10) is provided with a first pin hole (24) and a first through hole (25); one end of the first pin (11) is located in the first pin hole (24); the other end of the first pin (11) is located outside the first pin hole (24); one end of the first pin (11) is connected to the first spring (16); the first spring (16) is located in the first pin hole (24); the first pin (11) can reciprocate along the axial direction of the first pin (11); the first spring (16) can provide a restoring force to the first pin (11); the axial direction of the first pin (11) The first pin (11) is perpendicular to the length direction of the handle (10), the axis of the first pin (11) is perpendicular to the axis of the rotating shaft (9), the outer surface of the first pin (11) is provided with a first annular groove (29), the first through hole (25) is connected to the lower surface of the handle (10) and the first pin hole (24), the outer surface of the joint body (1) is provided with a platform (26), the upper surface of the platform (26) is perpendicular to the axis of the rotating shaft (9), the lower surface of the handle (10) and the upper surface of the platform (26) are arranged parallel to each other in an upper and lower manner, and the upper surface of the platform (26) contains an open position groove (27) and a closed position groove (28), and the open position groove (27) and the closed position groove (28) are arranged at intervals; When the handle (10) is in the maximum open position, the length direction of the handle (10) is parallel to the axial direction of the main channel (22), and the first through hole (25) corresponds to the open position groove (27); when the first locking mechanism is in a locked state, the upper part of the first ball (17) is located in the first through hole (25), the lower part of the first ball (17) is located in the open position groove (27), the first ball (17) and the first annular groove (29) are staggered along the axial direction of the first pin (11), and the first through hole (25) is located in the open position groove (27). A ball (17) cannot be separated from the open position groove (27); after the first pin (11) is pressed, when the first ball (17) and the first annular groove (29) are aligned along the axial direction of the first pin (11), the first locking mechanism is in an unlocked state, the first ball (17) can be separated from the open position groove (27), and during the rotation of the handle (10), the upper part of the first ball (17) is located in the first annular groove (29), and the lower part of the first ball (17) is located in the first through hole (25); When the handle (10) is in the maximum closed position, the length direction of the handle (10) is perpendicular to the axial direction of the main channel (22), and the first through hole (25) corresponds to the closed position groove (28); when the first locking mechanism is in a locked state, the upper part of the first ball (17) is located in the first through hole (25), the lower part of the first ball (17) is located in the closed position groove (28), the first ball (17) and the first annular groove (29) are staggered along the axial direction of the first pin (11), and the first through hole (25) is located in the closed position groove (28). A ball (17) cannot be separated from the closed position groove (28); after pressing the first pin (11), when the first ball (17) and the first annular groove (29) are aligned along the axial direction of the first pin (11), the first locking mechanism is in an unlocked state, the first ball (17) can be separated from the closed position groove (28), and during the rotation of the handle (10), the upper part of the first ball (17) is located in the first annular groove (29), and the lower part of the first ball (17) is located in the first through hole (25).

7. The double interlocking quick connector according to claim 6, characterized in that: The front part of the joint body (1) of the first half joint (37) is provided with an interlocking pin (6) and a locking pin hole (34), and a part of the interlocking pin (6) is located in the locking pin hole (34). The front part of the joint body (1) of the second half joint (38) is provided with an interlocking hole (39). When the handle (10) is located at the maximum open position, the interlocking pin (6) is in an extended state, and the interlocking pin (6) of the first half joint (37) is matched and inserted in the interlocking hole (39) of the second half joint (38); when the handle (10) is located at the maximum closed position, the interlocking pin (6) is in a retracted state, and the interlocking pin (6) of the first half joint (37) is disengaged from the interlocking hole (39) of the second half joint (38).

8. The double interlocking quick connector according to claim 7, characterized in that: The axis of the interlocking pin (6) is parallel to the main flow channel (22), and the outer peripheral surface of the rear part of the interlocking pin (6) is provided with a plurality of external tooth grooves, and the plurality of external tooth grooves are arranged along the axis direction of the interlocking pin (6). One end of the handle (10) is provided with external meshing teeth (30), and the external meshing teeth (30) are meshed and connected with the plurality of external tooth grooves. The rotation of the handle (10) can move the interlocking pin (6) along the axis direction of the interlocking pin (6).

9. The double interlocking quick connector according to claim 8, characterized in that: The front part of the joint body (1) is also provided with a second pin (5), a second spring (18), a second ball (19), a second pin hole (31) and a second through hole (32); the axis of the second pin (5) is parallel to the axis of the interlocking pin (6); the front end of the second pin (5) can extend out of the front end surface of the joint body (1); the rear end of the second pin (5) is connected to the second spring (18); the outer peripheral surface of the second pin (5) is provided with a second annular groove (33); the second pin (5) can move forward and backward; the second spring (18) can provide a restoring force to the second pin (5); the second pin (5) and the second spring (18) are both located in the second pin hole (31); the second through hole (32) communicates with the second pin hole (31) and the locking pin hole (34); and the outer peripheral surface of the interlocking pin (6) is provided with a third annular groove (35); When the second pin (5) is in an extended state, the upper part of the second ball (19) is located in the second through hole (32), the lower part of the second ball (19) is located in the third annular groove (35), the interlocking pin (6) is in a retracted state, the interlocking pin (6) cannot move forward or backward, and the handle (10) cannot rotate; When the second pin (5) is in a retracted state, the upper part of the second ball (19) is located in the second annular groove (33), the lower part of the second ball (19) is located in the second through hole (32), the interlocking pin (6) can move forward and backward, the interlocking pin (6) can be in an extended state, and the handle (10) can rotate.

10. The double interlocking quick connector according to claim 1, characterized in that: The first half joint (37) further comprises an interface (13), which is a cylindrical structure. The front end of the interface (13) is sleeved inside the rear end of the joint body (1). The front end outer surface of the interface (13) is provided with a fourth annular groove (36). The front end inner surface of the joint body (1) is provided with a fifth annular groove. A plurality of third balls (12) are provided between the joint body (1) and the first half joint (37). The plurality of third balls (12) are arranged at intervals along the circumference of the joint body (1). A portion of the third balls (12) is located in the fourth annular groove (36), and another portion of the third balls (12) is located in the fifth annular groove. The interface (13) can rotate 360° relative to the joint body (1) with the axis of the joint body (1) as the axis. A screw hole for mounting the third balls (12) is provided on the interface (13). The screw hole communicates with the fourth annular groove (36) and the outer surface of the interface (13). A screw (15) is provided in the screw hole.

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