Quick connector butt joint communication structure
The design of the positioning pin and locking handle solves the problem of difficult alignment of quick connectors, achieving fast and accurate docking and efficient sealing, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INNER MONGOLIA YETIAN TIENIU AGRI EQUIP CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-08
AI Technical Summary
Existing quick couplings are difficult to align during the connection process, resulting in complicated connection operations and poor sealing performance.
By using a positioning pin and positioning hole, combined with the design of a locking handle and locking groove, fast and accurate docking is achieved. The moving alignment mechanism ensures precise valve core docking and improves sealing performance.
Shorten docking time, improve docking efficiency, avoid misalignment and leakage, enhance sealing effect, and reduce maintenance costs.
Smart Images
Figure CN224214896U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline connection technology, specifically to a quick-connect coupling structure. Background Technology
[0002] In related technologies, pipeline connections are usually achieved through quick couplings, which is convenient and fast. However, quick couplings are usually fixed on the valve body, and alignment is difficult during the connection process, resulting in complicated connection operations and poor sealing performance. Utility Model Content
[0003] This invention provides a quick connector connection structure to solve the problems of existing quick connectors, such as difficulty in alignment during connection, which leads to complex connection operations and poor sealing performance.
[0004] In view of this, the present invention provides a quick connector connection structure, comprising:
[0005] A movable component includes a first valve body and a first valve core; the first valve core is disposed on the first valve body.
[0006] The fixing assembly includes a second valve body, a second valve core, and a locking handle; one of the first valve body and the second valve body is provided with a positioning pin, and the other is provided with a positioning hole adapted to the positioning pin; the second valve body is provided with a first cavity; the second valve core passes through the first cavity and is clearance-fitted with the first cavity for docking and communication with the first valve core;
[0007] The locking handle is rotatably disposed on the side of the second valve body, and the side of the first valve body is provided with a locking lug corresponding to the locking handle; the side of the locking handle facing the locking lug is provided with a locking groove adapted to the locking lug; the locking handle has a first position where the locking groove is engaged with the locking lug, and a second position where the locking groove is separated from the locking lug.
[0008] In one optional embodiment, the first cavity has a first opening at the end facing the first valve body, and a second opening at the end of the first cavity away from the first valve body, the size of the first opening being smaller than that of the second opening; a retaining ring is provided at the end of the second valve core extending out of the first opening.
[0009] In one alternative embodiment, the positioning pin is fixed to the first valve body or the second valve body by a locking nut.
[0010] In one alternative embodiment, the fixing component further includes a locking member disposed on the locking handle and the second valve body for locking the locking handle when the locking handle is rotated to the first position.
[0011] In one alternative embodiment, the locking element includes a locking screw, a locking block, and a first return spring;
[0012] The second valve body has a first positioning groove on its side corresponding to the locking handle, and the locking block is slidably disposed in the first positioning groove; the first return spring is disposed between the locking block and the bottom of the first positioning groove, and is used to abut against the locking block as it moves toward the locking handle;
[0013] The locking handle facing the second valve body has a second positioning groove corresponding to the first positioning groove, and the locking block is adapted to the second positioning groove;
[0014] The locking screw is slidably inserted through the locking handle corresponding to the second positioning groove, and one end of the locking screw extending into the second positioning groove abuts against the locking block;
[0015] The locking block has a locked state in which it moves to a partially located position within the second positioning groove under the action of the first return spring when the locking handle is rotated to the first position, and an unlocked state in which it moves to the first positioning groove under the driving action of the locking screw.
[0016] In one optional embodiment, the locking handle is provided with a threaded portion corresponding to the second positioning groove, the threaded portion being threadedly connected to the locking handle, and both the second positioning groove and the locking screw are provided on the threaded portion.
[0017] In one alternative embodiment, the locking block has a spherical structure;
[0018] And / or, a limiting protrusion is provided around the periphery of one end of the locking screw that extends into the second positioning groove.
[0019] In one optional embodiment, the first valve core includes a first ejector pin, a second return spring, and a hollow first housing. The end of the first housing that connects with the second valve core is a first mating end. The first ejector pin is slidably embedded in the first mating end along the axial direction of the first housing. One end of the second return spring is connected to the first ejector pin, and the other end is connected to the inner cavity of the first housing. The inner cavity of the first mating end includes a second cavity and a third cavity from the outside to the inside. The diameter of the second cavity is smaller than that of the third cavity. The first ejector pin is adapted to and sealed with the second cavity.
[0020] The second valve core includes a second ejector pin, a third return spring, a sealing sleeve, and a hollow second housing. The end of the second housing that connects with the first valve core is the second mating end. The second ejector pin is fixedly disposed within the second housing along its axial direction and extends to be flush with the end of the second mating end. The sealing sleeve is slidably and sealingly embedded in the second mating end. One end of the third return spring is connected to the sealing sleeve, and the other end is connected to the inner cavity of the second housing. The second ejector pin includes a rod and a sealing portion. The rod is fixedly disposed within the second housing. The sealing portion is located at the second mating end and connected to the rod, and the diameter of the sealing portion is larger than the diameter of the rod. The inner cavity of the sealing sleeve is adapted to seal the sealing portion. The outer diameter of the first mating end is adapted to the inner diameter of the second mating end, and the inner diameter of the first mating end is greater than or equal to the diameter of the sealing portion.
[0021] In one alternative embodiment, the end of the first valve core away from the second valve core is provided with a first pair of threaded connectors.
[0022] In one alternative embodiment, the second valve core is provided with a second pair of threaded connectors at the end away from the first valve core.
[0023] The technical solution of this utility model has the following advantages:
[0024] This invention achieves fast and accurate docking by using the positioning pin 6 and positioning hole 7, and by quickly locking and unlocking the locking handle 5, thus shortening docking time and improving docking efficiency. During docking, the first valve core 2 and the second valve core 4 are precisely positioned through a moving alignment mechanism, avoiding leakage caused by misalignment and improving the sealing effect. Through stable sealing performance and efficient docking method, maintenance work caused by leakage and docking failure is reduced, thus lowering maintenance costs. Attached Figure Description
[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0026] Figure 1 This is a structural schematic diagram of the fixing component in an embodiment of the present utility model from a first perspective.
[0027] Figure 2 This is a structural schematic diagram of the fixing component in an embodiment of the present utility model from a second perspective.
[0028] Figure 3 This is a structural schematic diagram of the fixing component in an embodiment of the present utility model from a third-person perspective;
[0029] Figure 4 for Figure 3 Sectional view at point AA;
[0030] Figure 5 for Figure 3 Sectional view at point BB in the middle;
[0031] Figure 6 This is a structural schematic diagram of the fixing component in an embodiment of the present utility model from a fourth perspective;
[0032] Figure 7 This is a structural schematic diagram of the fixing component in an embodiment of the present utility model from a fifth perspective;
[0033] Figure 8 This is a structural schematic diagram of the fixing component in an embodiment of the present utility model from a sixth perspective;
[0034] Figure 9 for Figure 8 Sectional view at point C;
[0035] Figure 10 This is a schematic diagram of the structure of the mobile component in an embodiment of the present utility model from a first perspective.
[0036] Figure 11 This is a schematic diagram of the structure of the mobile component in an embodiment of the present invention from a third-person perspective;
[0037] Figure 12 for Figure 11 Sectional view at DD in the middle;
[0038] Figure 13 for Figure 11 Sectional view at EE in the middle;
[0039] Figure 14 This is a structural schematic diagram of the mobile component of an embodiment of the present invention from a seventh perspective;
[0040] Figure 15 This is a structural schematic diagram of the mobile component of an embodiment of the present invention from an eighth perspective.
[0041] Explanation of reference numerals in the attached figures:
[0042] 1. First valve body; 2. First valve core; 201. First ejector pin; 202. Second return spring; 203. First housing; 204. Second cavity; 205. Third cavity; 3. Second valve body; 4. Second valve core; 401. Second ejector pin; 4011. Rod; 4012. Sealing part; 402. Third return spring; 403. Sealing sleeve; 404. Second housing; 5. Locking handle; 6. Positioning pin; 7. Positioning hole; 8. First cavity 9. Body; 10. Locking lug; 11. Locking groove; 12. Snap ring; 13. Locking nut; 14. Locking component; 15. Locking screw; 16. Locking block; 17. First return spring; 18. Threaded part; 19. Limiting protrusion; 20. First positioning groove; 11. Second positioning groove; 12. First threaded connector; 13. Second threaded connector; 14. First sealing ring; 15. Second sealing ring; 26. Third sealing ring. Detailed Implementation
[0043] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0044] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0045] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0046] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0047] The following is combined with Figures 1 to 15 The following describes embodiments of the present invention.
[0048] According to an embodiment of this utility model, a quick connector docking and connection structure is provided, comprising: a moving component including a first valve body 1 and a first valve core 2; the first valve core 2 passing through the first valve body 1; a fixing component including a second valve body 3, a second valve core 4, and a locking handle 5; one of the first valve body 1 and the second valve body 3 is provided with a positioning pin 6, and the other is provided with a positioning hole 7 adapted to the positioning pin 6; the second valve body 3 is provided with a first cavity 8; the second valve core 4 passes through the first cavity 8 and is clearance-fitted with the first cavity 8 for docking and communication with the first valve core 2; the locking handle 5 is rotatably disposed on the side of the second valve body 3, and the side of the first valve body 1 is provided with a locking lug 9 corresponding to the locking handle 5; the side of the locking handle 5 facing the locking lug 9 is provided with a locking groove 10 adapted to the locking lug 9; the locking handle 5 has a first position where the locking groove 10 is engaged with the locking lug 9, and a second position where the locking groove 10 is separated from the locking lug 9.
[0049] It should be noted that the first valve core 2 and the second valve core 4 are matched and configured accordingly; when the first valve body 1 and the second valve body 3 are configured relative to each other, the locking lug 9 is on the rotation path of the locking groove 10.
[0050] In this embodiment, the second valve body 3 of the fixing component can be fixedly installed with an external device. During docking, the first valve body 1 is positioned and placed on the second valve body 3 through the positioning hole 7 and the positioning pin 6, ensuring precise positioning so that the first valve core 2 and the second valve core 4 can be aligned and docked, improving docking accuracy. Since the second valve core 4 has a clearance fit with the first cavity 8, it has a certain adjustment space. During the docking process of the first valve core 2 and the second valve core 4, the adjustment space is used to move and automatically align, ensuring accurate docking and improving sealing performance. After docking is completed, by rotating the locking handle 5 to the first position, the locking groove 10 is engaged with the locking lug 9 to lock the first valve body 1 and the second valve body 3, preventing damage. During use, the valve body detaches to ensure sealing performance and stability. When disassembly is required, the locking handle 5 is rotated in the opposite direction, causing the locking groove 10 to disengage from the locking lug 9 and move to the second position, allowing the first valve body 1 to be removed from the second valve body 3. Through the cooperation of the positioning pin 6 and the positioning hole 7, and the quick locking and unlocking of the locking handle 5, fast and accurate docking is achieved, shortening docking time and improving docking efficiency. During docking, the first valve core 2 and the second valve core 4 are precisely positioned through a moving alignment mechanism, avoiding leakage caused by misalignment and improving the sealing effect. Through stable sealing performance and efficient docking method, maintenance work caused by leakage and docking failure is reduced, thus lowering maintenance costs.
[0051] Specifically, such as Figure 1 , Figure 2 , Figure 7 and Figure 9 As shown, the locking handle 5 includes two side plates and a pull rod connected between the two side plates. The two side plates are respectively connected to the two side walls of the second valve body 3 by a pivot, so as to facilitate rotation by the pull rod and improve the overall stability.
[0052] Specifically, locking lugs 9 are provided on both sides of the second valve body 3 to improve stability during locking.
[0053] Specifically, the locking groove 10 has an arc-shaped structure, and the rotation center of the arc-shaped structure coincides with the axis of the rotating shaft, so as to securely lock the locking lug 9.
[0054] In one embodiment, such as Figures 3 to 5 As shown, the first cavity 8 has a first opening at the end facing the first valve body 1, and a second opening at the end facing away from the first valve body 1. The size of the first opening is smaller than that of the second opening. A retaining ring 11 is provided at the end of the second valve core 4 that extends out of the first opening.
[0055] It should be noted that the shape of the second valve core 4 is adapted to the shape of the first cavity 8; the diameter of the retaining ring 11 is larger than the diameter of the first opening.
[0056] In this embodiment, since the size of the first opening is larger than that of the second opening, during installation, the second valve core 4 is inserted into the first cavity 8 through the second opening and extends out of the second valve body 3 through the first opening, and is limited by the retaining ring 11, which facilitates installation and disassembly, and makes it easy for the second valve core 4 to move and align within the first cavity 8 during docking.
[0057] In one embodiment, such as Figures 10 to 15 As shown, the positioning pin 6 is fixed to the first valve body 1 or the second valve body 3 by the locking nut 12.
[0058] In this embodiment, the positioning pin 6 and the locking nut 12 are fixed on the first valve body 1 or the second valve body 3, which facilitates installation and disassembly.
[0059] Specifically, such as Figures 10 to 15 As shown, one end of the positioning pin 6 passes through the first valve body 1 or the second valve body 3, and the end of the positioning pin 6 that passes through the first valve body 1 or the second valve body 3 is provided with an external thread, which is used to lock the pin with the locking nut 12.
[0060] Specifically, multiple positioning pins 6 are provided to improve positioning accuracy.
[0061] Specifically, the positioning pin 6 is located on the side where the first valve body 1 and the second valve body 3 are connected, and the positioning hole 7 is located on the side where the second valve body 3 and the first valve body 1 are connected.
[0062] In one embodiment, such as Figure 1 , Figure 3 , Figure 4 , Figure 6 and Figure 9 As shown, the fixing assembly also includes a locking member 13; the locking member 13 is disposed on the locking handle 5 and the second valve body 3, and is used to lock the locking handle 5 when the locking handle 5 is rotated to the first position.
[0063] It should be noted that the locking component 13 has a locked state and an unlocked state.
[0064] In this embodiment, by providing a locking member 13, the locking handle 5 is locked when rotated to the first position, thereby further improving stability; when disassembly is required, the locking member 13 is unlocked so that the locking handle 5 can be rotated for disassembly.
[0065] In one embodiment, such as Figure 9 As shown, the locking component 13 includes a locking screw 1301, a locking block 1302, and a first return spring 1303; the side of the second valve body 3 is provided with a first positioning groove 14 corresponding to the locking handle 5, and the locking block 1302 is slidably disposed in the first positioning groove 14; the first return spring 1303 is disposed between the locking block 1302 and the bottom of the first positioning groove 14, and is used to abut against the locking block 1302 as it moves toward the locking handle 5; the side of the locking handle 5 facing the second valve body 3 is provided with a second positioning groove 15 corresponding to the first positioning groove 14. The locking block 1302 is adapted to the second positioning groove 15; the locking screw 1301 is slidably inserted into the locking handle 5 corresponding to the second positioning groove 15; one end of the locking screw 1301 extending into the second positioning groove 15 abuts against the locking block 1302; the locking block 1302 has a locking state in which it moves to a partially located position in the second positioning groove 15 under the action of the first return spring 1303 when the locking handle 5 is rotated to the first position, and an unlocking state in which it moves to the first positioning groove 14 under the driving action of the locking screw 1301.
[0066] It should be noted that one end of the locking screw 1301 passes through the second positioning groove 15, and the other end is located outside the locking handle 5.
[0067] In this embodiment, when the locking handle 5 is rotated to the first position, the first positioning groove 14 and the second positioning groove 15 are aligned, causing the locking block 1302 to partially move into the second positioning groove 15 under the elastic action of the first return spring 1303 and abut against the locking screw 1301. This results in one part of the locking block 1302 being located in the first positioning groove 14 and the other part being located in the second positioning groove 15, thereby completing the locking of the locking handle 5, preventing the locking handle 5 from rotating, and improving stability. When it is necessary to rotate the locking handle 5, the locking screw 1301 is pushed, which in turn pushes the locking block 1302 to compress the first return spring 1303 and move it into the first positioning groove 14. At this time, the locking handle 5 can be rotated. During the rotation, the side wall of the locking handle 5 always presses and abuts the locking block 1302 into the first positioning groove 14 until the first positioning groove 14 and the second positioning groove 15 are aligned again to lock it.
[0068] Specifically, the locking element 13 is provided on the side plate.
[0069] In one embodiment, such as Figure 9 As shown, the locking handle 5 has a threaded part 1304 corresponding to the second positioning groove 15. The threaded part 1304 is threadedly connected to the locking handle 5. The second positioning groove 15 and the locking screw 1301 are both provided on the threaded part 1304.
[0070] In this embodiment, the threaded part 1304 is threadedly connected to the locking handle 5, and the second positioning groove 15 and the locking screw 1301 are both provided in the threaded part 1304, which facilitates installation and disassembly.
[0071] In one embodiment, such as Figure 9 As shown, the locking block 1302 has a spherical structure.
[0072] In this embodiment, the locking block 1302 has a spherical structure, so that when the locking screw 1301 drives the locking block 1302 to move towards the first positioning groove 14, it is not necessary to drive the locking block 1302 completely into the first positioning groove 14. The locking handle 5 can be used to abut against the arc surface of the locking block 1302 to move it into the first positioning groove 14, thereby improving convenience.
[0073] In one embodiment, such as Figure 9 As shown, a limiting protrusion 1305 is provided around the end of the locking screw 1301 that extends into the second positioning groove 15.
[0074] In this embodiment, by setting a limiting protrusion 1305, the locking screw 1301 is prevented from coming out of the locking handle 5.
[0075] Specifically, the locking handle 5 is provided with a through hole that communicates with the second positioning groove 15. The diameter of the through hole is smaller than the diameter of the second positioning groove 15, and the locking screw 1301 is adapted to pass through the through hole.
[0076] In one embodiment, such as Figure 4 , Figure 5 , Figure 12 and Figure 13 As shown, the first valve core 2 includes a first ejector pin 201, a second return spring 202, and a hollow first housing 203. The end of the first housing 203 that connects with the second valve core 4 is the first mating end. The first ejector pin 201 is slidably embedded in the first mating end along the axial direction of the first housing 203. One end of the second return spring 202 is connected to the first ejector pin 201, and the other end is connected to the inner cavity of the first housing 203. The inner cavity of the first mating end includes a second cavity 204 and a third cavity 205 from the outside to the inside. The diameter of the second cavity 204 is smaller than that of the third cavity 205. The first ejector pin 201 and the second cavity 204 are fitted together in a sealing connection. The second valve core 4 includes a second ejector pin 401, a third return spring 402, a sealing sleeve 403, and a hollow second housing 404. The end of the second housing 404 that connects with the first valve core 2 is the second mating end. The second ejector pin 401 is fixedly disposed within the second housing 404 along the axial direction of the second housing 404, and extends to be flush with the end of the second mating end; the sealing sleeve 403 is slidably and sealingly embedded in the second mating end; one end of the third return spring 402 is connected to the sealing sleeve 403, and the other end is connected to the inner cavity of the second housing 404; the second ejector pin 401 includes a rod portion 4011 and a sealing portion 4012, the rod portion 4011 is fixedly disposed within the second housing 404; the sealing portion 4012 is located at the second mating end and connected to the rod portion 4011, and the diameter of the sealing portion 4012 is larger than the diameter of the rod portion 4011; the inner cavity of the sealing sleeve 403 is adapted to seal the sealing portion 4012; the outer diameter of the first mating end is adapted to the inner diameter of the second mating end, and the inner diameter of the first mating end is greater than or equal to the diameter of the sealing portion 4012.
[0077] It should be noted that the first ejector pin 201 has a third position where it moves to the second cavity 204 to seal under the action of the second return spring 202, and a fourth position where it moves to the third cavity 205 to conduct under the abutment action of the second ejector pin 401; the sealing sleeve 403 has a fifth position where it moves to cooperate with the sealing part 4012 to seal under the action of the second return spring 202, and a sixth position where it moves to the outer periphery of the rod part 4011 to conduct under the abutment action of the first mating end; the second return spring 202 is located on the side of the first ejector pin 201 away from the second valve core 4; the third return spring 402 is located on the side of the sealing sleeve 403 away from the first valve core 2.
[0078] In this embodiment, before the first valve core 2 and the second valve core 4 are connected, the first ejector pin 201 is located at the second cavity 204 under the action of the second return spring 202, that is, in the third position, and is sealed with the second cavity 204; the sealing sleeve 403 is located at the outer periphery of the sealing part 4012 of the second ejector pin 401 under the action of the third return spring 402, that is, in the fifth position, and is sealed with the second cavity 204; when the first valve core 2 and the second valve core 4 are connected, the first and second connecting ends of the two abut against each other. During connection, the first connecting end abuts against the sealing sleeve 403, pushing the sealing sleeve 403 into the second housing 404 to compress the third return spring 402 and move it to the sixth position, that is, the sealing sleeve 403 disengages from the sealing part 4012 of the second ejector pin 401 and moves to the rod part 4. The outer periphery of 011 makes the interior of the second housing 404 conductive. At the same time, the sealing part 4012 of the second ejector pin 401 abuts against the first ejector pin 201 and pushes the first ejector pin 201 to compress the second return spring 202 and move into the first housing 203 to the fourth position, that is, to the third cavity 205. Since the diameter of the second cavity 204 is smaller than that of the third cavity 205, the first housing 203 is conductive at this time, thereby completing the docking and conduction of the first valve core 2 and the second valve core 4. When the fixed component and the moving component are disassembled, the sealing sleeve 403 moves back to the outer periphery of the sealing part 4012 of the second ejector pin 401 under the action of the third return spring 402 to seal, and the first ejector pin 201 moves back to the second cavity 204 under the action of the second return spring 202 to seal.
[0079] Specifically, a first sealing ring 18 is provided between the second cavity 204 and the first ejector pin 201, a second sealing ring 19 is provided between the sealing sleeve 403 and the side wall of the second housing 404, and a third sealing ring 20 is provided between the sealing sleeve 403 and the sealing part 4012, so as to improve the overall sealing performance.
[0080] Specifically, the first valve core 2 is threadedly connected to the first valve body 1, which facilitates installation and disassembly.
[0081] In one embodiment, such as Figures 12 to 15 As shown, the first valve core 2 is provided with a first pair of threaded connectors 16 at the end away from the second valve core 4.
[0082] In this embodiment, the first valve core 2 is connected to the external pipeline through the first threaded connector 16, which facilitates installation and disassembly and improves work efficiency.
[0083] In one embodiment, such as Figure 4 and Figure 5 As shown, the second valve core 4 is provided with a second pair of threaded connectors 17 at the end away from the first valve core 2.
[0084] In this embodiment, the second valve core 4 is connected to the external pipeline through the second threaded connector 17, which facilitates installation and disassembly and improves work efficiency.
[0085] Specifically, multiple first valve cores 2 can be provided, and second valve cores 4 are matched one-to-one with the first valve cores 2.
[0086] The specific working principle of the quick connector docking structure provided in this embodiment is as follows: When docking is required, the second valve body 3 can be fixedly installed with an external device. During docking, the first valve body 1 is aligned with the positioning hole 7 on the second valve body 3 via the positioning pin 6, and is positioned and inserted into the second valve body 3, so that the first valve body 1 and the second valve body 3 dock, ensuring accurate positioning, so that the first docking end of the first valve core 2 and the second docking end of the second valve core 4 are aligned and docked, improving docking accuracy. Since the second valve core 4 and the first cavity 8 have a clearance fit, they have a certain adjustment space, allowing the first valve core 2 and the second valve core 4 to move and find each other during docking. To ensure precise alignment and improve sealing performance, during the alignment process, the first mating end abuts against the sealing sleeve 403, pushing the sealing sleeve 403 into the second housing 404 to compress the third return spring 402. This causes the sealing sleeve 403 to disengage from the sealing part 4012 of the second ejector pin 401 and move to the outer periphery of the rod part 4011, making the interior of the second housing 404 conductive. Simultaneously, the sealing part 4012 of the second ejector pin 401 abuts against the first ejector pin 201, pushing the first ejector pin 201 to compress the second return spring 202 and move into the third cavity 205 of the first housing 203, making the first housing 203 conductive, thereby achieving... The first valve core 2 and the second valve core 4 are connected and aligned. After connection, the locking handle 5 is rotated to the first position, causing the locking groove 10 to engage with the locking lug 9. Simultaneously, the locking member 13 locks the locking handle 5, thus locking the first valve body 1 and the second valve body 3 to prevent them from disengaging during use and to ensure sealing performance and stability. When disassembly is required, the locking screw 1301 is pressed to unlock the locking member 13. Simultaneously, the locking handle 5 is rotated in the opposite direction, causing the locking groove 10 to disengage from the locking lug 9 and move to the second position, allowing the first valve body 1 to be removed from the second valve body 3. The quick-connect coupling provided in this embodiment enables connection and alignment. The structure achieves rapid and accurate docking through the cooperation of the positioning pin 6 and the positioning hole 7, as well as the quick locking and unlocking of the locking handle 5 and the locking part 13, shortening docking time and improving work efficiency. During docking, the first valve core 2 and the second valve core 4 can be accurately positioned through a moving alignment mechanism, avoiding leakage caused by misalignment and improving the sealing effect. Through stable sealing performance and efficient docking method, maintenance work caused by leakage and docking failure is reduced, and maintenance costs are lowered. This solves the problems of low docking efficiency, difficult alignment, complicated connection operation, and poor sealing effect of existing quick couplings during docking.
[0087] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.
Claims
1. A quick-connect coupling structure, characterized in that, include: The moving component includes a first valve body (1) and a first valve core (2); the first valve core (2) passes through the first valve body (1); The fixing assembly includes a second valve body (3), a second valve core (4), and a locking handle (5); one of the first valve body (1) and the second valve body (3) is provided with a positioning pin (6), and the other is provided with a positioning hole (7) adapted to the positioning pin (6); the second valve body (3) is provided with a first cavity (8); the second valve core (4) passes through the first cavity (8) and is clearance-fitted with the first cavity (8) for connecting and communicating with the first valve core (2); The locking handle (5) is rotatably disposed on the side of the second valve body (3), and the side of the first valve body (1) is provided with a locking lug (9) corresponding to the locking handle (5); the locking handle (5) is provided with a locking groove (10) adapted to the locking lug (9) on the side facing the locking lug (9); the locking handle (5) has a first position where the locking groove (10) is engaged with the locking lug (9), and a second position where the locking groove (10) is separated from the locking lug (9).
2. The quick connector mating connection structure according to claim 1, characterized in that, The first cavity (8) has a first opening at one end facing the first valve body (1), and a second opening at the other end of the first cavity (8) away from the first valve body (1). The size of the first opening is smaller than that of the second opening. The second valve core (4) has a retaining ring (11) at one end extending out of the first opening.
3. The quick-connect coupling structure according to claim 1, characterized in that, The positioning pin (6) is fixed to the first valve body (1) or the second valve body (3) by a locking nut (12).
4. The quick connector mating connection structure according to claim 1, characterized in that, The fixing assembly also includes a locking member (13); the locking member (13) is disposed on the locking handle (5) and the second valve body (3) for locking the locking handle (5) when the locking handle (5) is rotated to the first position.
5. The quick connector mating connection structure according to claim 4, characterized in that, The locking component (13) includes a locking screw (1301), a locking block (1302), and a first return spring (1303); The second valve body (3) has a first positioning groove (14) on its side corresponding to the locking handle (5), and the locking block (1302) is slidably disposed in the first positioning groove (14); the first return spring (1303) is disposed between the locking block (1302) and the bottom of the first positioning groove (14) for abutting the locking block (1302) and moving toward the locking handle (5); The locking handle (5) is provided with a second positioning groove (15) on the side facing the second valve body (3) corresponding to the first positioning groove (14), and the locking block (1302) is adapted to the second positioning groove (15); The locking screw (1301) is slidably inserted through the second positioning groove (15) on the locking handle (5), and one end of the locking screw (1301) extending into the second positioning groove (15) abuts against the locking block (1302); The locking block (1302) has a locking state in which it moves to a partially located position in the second positioning groove (15) under the action of the first return spring (1303) when the locking handle (5) is rotated to the first position, and an unlocking state in which it moves to the first positioning groove (14) under the driving action of the locking screw (1301).
6. The quick connector mating connection structure according to claim 5, characterized in that, The locking handle (5) is provided with a threaded part (1304) corresponding to the second positioning groove (15). The threaded part (1304) is threadedly connected to the locking handle (5). The second positioning groove (15) and the locking screw (1301) are both provided on the threaded part (1304).
7. The quick connector mating connection structure according to claim 5, characterized in that, The locking block (1302) has a spherical structure; And / or, a limiting protrusion (1305) is provided around the periphery of one end of the locking screw (1301) that extends into the second positioning groove (15).
8. The quick-connect coupling structure according to any one of claims 1 to 7, characterized in that, The first valve core (2) includes a first ejector pin (201), a second return spring (202), and a hollow first housing (203). The first end of the first housing (203) that is connected to the second valve core (4) is the first docking end. The first ejector pin (201) is slidably embedded in the first docking end along the axial direction of the first housing (203). One end of the second return spring (202) is connected to the first ejector pin (201), and the other end is connected to the inner cavity of the first housing (203). The inner cavity of the first docking end includes a second cavity (204) and a third cavity (205) from the outside to the inside. The diameter of the second cavity (204) is smaller than that of the third cavity (205). The first ejector pin (201) and the second cavity (204) are adapted to be sealed together. The second valve core (4) includes a second ejector pin (401), a third return spring (402), a sealing sleeve (403), and a hollow second housing (404). The second housing (404) has a second mating end where it connects with the first valve core (2). The second ejector pin (401) is fixedly disposed within the second housing (404) along its axial direction and extends to be flush with the end of the second mating end. The sealing sleeve (403) is slidably and sealingly embedded in the second mating end. One end of the third return spring (402) is connected to the sealing sleeve (403), and the other end is connected to the second housing (404). The inner cavity of the second ejector pin (404) is connected; the second ejector pin (401) includes a rod (4011) and a sealing part (4012), the rod (4011) is fixedly disposed in the second housing (404); the sealing part (4012) is located at the second mating end and connected to the rod (4011), and the diameter of the sealing part (4012) is greater than the diameter of the rod (4011); the inner cavity of the sealing sleeve (403) is adapted to seal the sealing part (4012); the outer diameter of the first mating end is adapted to the inner diameter of the second mating end, and the inner diameter of the first mating end is greater than or equal to the diameter of the sealing part (4012).
9. The quick-connect coupling structure according to claim 1, characterized in that, The first valve core (2) is provided with a first threaded connector (16) at the end away from the second valve core (4).
10. The quick-connect coupling structure according to claim 1, characterized in that, The second valve core (4) is provided with a second pair of threaded connectors (17) at the end away from the first valve core (2).