Quick plugging connector

Abstract

The utility model relates to a quick plugging connector which comprises a plug, a socket and a locking sleeve, the inner wall of the plug is provided with an annular bayonet, the inner wall of the socket is provided with an annular clamping groove, the annular bayonet and the clamping groove form radial clamping fit when the plug is inserted into the socket, the locking sleeve slidably sleeves the outer wall of the socket, the inner wall of the locking sleeve is provided with a step groove, and the locking sleeve comprises a narrow groove section and a wide groove section. When the locking sleeve is located at the first position, the narrow groove section and the annular clamping groove jointly abut against the annular bayonet to form vertical axial limiting, and when the locking sleeve slides to the second position, the wide groove section provides a radial deformation space for the annular bayonet so that the annular bayonet can be separated from the clamping groove to achieve unlocking. According to the design, through axial sliding control of the locking sleeve, rapid insertion and extraction are achieved, and the connection stability and operation convenience are improved.

Description

Technical Field

[0001] This application relates to the field of plug-in connectors, and more particularly to a quick-plug connector. Background Technology

[0002] Traditional pluggable connectors are widely used in equipment such as nozzle pressers, primarily for quick connection and disconnection. These connectors typically employ threaded connections, snap-fit ​​connections, or spring-locking mechanisms to ensure connection stability and reliability. However, traditional pluggable connectors often require significant force during operation and involve cumbersome procedures, making truly rapid plugging and unplugging difficult. Furthermore, traditional pluggable connectors are prone to wear during frequent plugging and unplugging, leading to weak connections and affecting the normal operation of the equipment.

[0003] To achieve rapid insertion and removal, several improvements have been proposed in existing technologies. For example, some insertion / removal devices employ a spring-loaded snap-fit ​​structure, using the spring's elastic force to achieve rapid connection and disconnection. Other solutions utilize magnetic connections, employing magnetic force for rapid insertion and removal. Additionally, some solutions employ a rotary locking structure, achieving rapid connection and disconnection through rotation. These solutions improve insertion and removal speed to some extent, but still have some problems, such as complex structure, inconvenient operation, and unstable connection.

[0004] Existing technologies often struggle to balance connection stability and ease of operation when achieving rapid insertion and removal. For example, while spring-loaded snap-fit ​​structures enable rapid insertion and removal, frequent operation can lead to spring fatigue and weakened connections. Magnetic connections, though simple to operate, have limited magnetic force and cannot withstand large axial forces. Rotary locking structures provide a secure connection, but their cumbersome operation hinders truly rapid insertion and removal. Furthermore, existing technologies often fail to meet the demands of high-efficiency pickup in applications such as automobiles and aerospace vehicles, resulting in low production efficiency. Utility Model Content

[0005] The purpose of this application is to provide a quick-plug connector.

[0006] According to one aspect of this application, a quick-plug connector is provided, comprising:

[0007] The plug extends axially to form a plugging channel, and the inner wall of the mating end of the plug is provided with a ring-shaped retaining groove protruding circumferentially.

[0008] The socket has a plug cavity that mates with the plug. The inner wall of the plug cavity is circumferentially recessed with an annular groove that matches the annular snap-fit. When the plug is inserted into the socket, the annular snap-fit ​​and the annular groove form a radial snap-fit ​​engagement.

[0009] A locking sleeve is slidably fitted onto the outer wall of the socket. The inner wall of the locking sleeve is provided with an axially extending stepped groove, which includes a narrow groove section near the insertion direction and a wide groove section away from the insertion direction.

[0010] When the locking sleeve is in the first position, the inner wall of the narrow groove and the annular slot abut against the outer wall of the annular slot to form a vertical axial limit. When the locking sleeve slides axially to the second position, the wide groove is opposite to the annular slot, and the annular slot can deform vertically and exit the annular slot through the wide groove.

[0011] In one specific embodiment, the quick-plug connector further includes a resilient reset mechanism;

[0012] The elastic reset mechanism includes an annular retaining ring disposed on the outer wall of the socket and a helical spring sleeved on the outer wall of the socket;

[0013] The helical spring is axially disposed between the inner end face of the annular retaining ring and the locking sleeve.

[0014] The locking sleeve can slide along the outer wall of the socket between a first position of the compression spring and a second position of the release spring;

[0015] When the locking sleeve slides to the second position under external force, the helical spring is compressed between the annular retaining ring and the inner end face of the locking sleeve and generates a restoring elastic force.

[0016] When the external force is released, the return force of the helical spring drives the locking sleeve to slide axially back from the second position to the first position, so that the narrow groove section re-forms the vertical axial constraint on the annular bayonet.

[0017] In one specific embodiment, the quick-plug connector further includes a plug terminal assembly, which includes a pin module fixed in the plug-in channel and a socket terminal module disposed at the bottom of the plug cavity. The pin module is axially plugged into the terminal module to form a conductive path for electrical connection.

[0018] In one specific embodiment, the pin module includes a fixing base and a plurality of conductive pins embedded therein, the conductive pins extending along the plug axis and parallel to the end face of the plug;

[0019] The socket terminal module includes a base fixed to the insertion cavity and a plurality of contacts embedded therein, with the open end of each elastic contact extending toward the insertion direction.

[0020] When the plug and socket are connected, the conductive pin is inserted into the open end of the corresponding contact, so that the conductive pin and the contact form an interference fit conductive path.

[0021] In one specific embodiment, the end of the annular bayonet is provided with an axial buffer structure, the buffer structure including an elastic flange arranged circumferentially along the end face of the annular bayonet;

[0022] The elastic flange and the limiting surface of the locking sleeve are axially opposite each other. When the plug and socket are connected, the elastic flange and the limiting surface make elastic contact to form an axial buffer fit.

[0023] In one specific embodiment, the locking sleeve is provided with a retaining strip for abutting against the socket insertion part to form an axial limit.

[0024] In one specific embodiment, the outer wall end of the locking sleeve forms an operating part, and the circumferential surface of the operating part is provided with a first anti-slip structure;

[0025] The first anti-slip structure consists of multiple strip-shaped grooves extending parallel to each other along the axial direction of the locking sleeve. The strip-shaped grooves are evenly distributed circumferentially to form a friction-enhancing surface for finger pushing and pulling.

[0026] In one specific embodiment, the outer periphery of the socket's plug end is provided with a second anti-slip structure;

[0027] The second anti-slip structure consists of multiple second strip-shaped grooves extending parallel to the axial direction of the socket, with each second strip-shaped groove evenly distributed circumferentially;

[0028] The second groove extends in the same direction as the axial pushing direction of the socket, forming a continuous longitudinal friction pattern.

[0029] In one specific embodiment, a third anti-slip structure is provided on the outer periphery of the end of the plug;

[0030] The third anti-slip structure is composed of multiple third strip-shaped grooves extending parallel to the plug axis, and the third strip-shaped grooves are evenly distributed circumferentially.

[0031] The third groove extends in the same direction as the axial pushing direction of the plug, forming an axial anti-slip stripe that matches the finger contact surface.

[0032] In one specific embodiment, the locking sleeve is made of stainless steel.

[0033] This application has the following beneficial effects:

[0034] The locking sleeve of this application is slidably fitted onto the outer wall of the socket. The inner wall of the locking sleeve has an axially extending stepped groove, which includes a narrow groove section near the insertion direction and a wide groove section away from the insertion direction. When the locking sleeve is in a first position, the inner wall surface of the narrow groove section and the annular slot abut against the outer wall of the annular latch, forming a vertical axial limit. When the locking sleeve slides axially to a second position, the wide groove section faces the annular latch, allowing the annular latch to deform vertically and exit the annular slot via the wide groove section. This design enables the present application to achieve quick insertion and removal while effectively improving connection stability and operational convenience. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0036] Figure 1 An axial view of a quick-plug connector;

[0037] Figure 2 An exploded axial view of a quick-plug connector;

[0038] Figure 3 This is the front view of the socket;

[0039] Figure 4 for Figure 3 Screenshot AA;

[0040] Figure 5 for Figure 4 Enlarged view of part A;

[0041] Figure 6 This is an axis view of the plug;

[0042] Figure 7 This is the rear-view view of the socket.

[0043] Figure 8 This is an axial view of the locking sleeve;

[0044] Explanation of icon numbers:

[0045] 1. Plug; 2. Insertion / removal channel; 3. Annular bayonet; 4. Socket; 5. Insertion cavity; 6. Annular slot; 7. Locking sleeve; 8. Stepped groove; 9. Narrow groove section; 10. Wide groove section; 11. Elastic reset mechanism; 12. Annular retaining ring; 13. Helical spring; 14. Plug terminal assembly; 15. Pin module; 17. Fixing base; 18. Conductive pin; 19. Base; 20. Contact element; 21. Axial buffer structure; 22. Elastic flange; 23. Locking strip; 24. Operating part; 25. First anti-slip structure; 27. Second anti-slip structure; 29. ​​Third anti-slip structure; 100. A quick-plug connector. Detailed Implementation

[0046] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0047] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0049] Please refer to Figure 1 - Figure 8 One embodiment of this application provides a quick-plug connector 100, comprising:

[0050] The plug 1 extends axially to form a plug-in channel 2, and the inner wall of the mating end of the plug 1 is provided with an annular retaining groove 3 protruding circumferentially.

[0051] The socket 4 has a plug cavity 5 that is plugged into the plug 1. The inner wall of the plug cavity 5 is circumferentially recessed with an annular groove 6 that is adapted to the annular snap 3. When the plug 1 is inserted into the socket 4, the annular snap 3 and the annular groove 6 form a radial snap engagement.

[0052] The locking sleeve 7 is slidably fitted onto the outer wall of the socket 4. The inner wall of the locking sleeve 7 is provided with an axially extending stepped groove 8. The stepped groove 8 includes a narrow groove section 9 near the insertion direction and a wide groove section 10 away from the insertion direction.

[0053] When the locking sleeve 7 is in the first position, the inner wall of the narrow groove 9 and the annular groove 6 abut against the outer wall of the annular slot 3 to form a vertical axial limit. When the locking sleeve 7 slides axially to the second position, the wide groove 10 is opposite to the annular slot 3, and the annular slot 3 can deform vertically and exit the annular groove 6 through the wide groove 10.

[0054] Furthermore, the connector achieves rapid insertion and removal through the radial engagement of the plug 1 and socket 4 and the axial sliding control of the locking sleeve 7. The annular bayonet 3 on the inner wall of the plug 1 and the annular groove 6 on the inner wall of the socket 4 form a mechanical lock through radial engagement. The stepped groove 8 design of the locking sleeve 7 is a key innovation; its narrow groove section 9 and wide groove section 10 provide rigid limiting and deformation release space respectively through axial position switching. When the locking sleeve 7 is in the first position, the inner wall surface of the narrow groove section 9 and the annular groove 6 together clamp the outer wall of the annular bayonet 3, forming a double vertical axial limiting, restricting the radial displacement of the plug 1 through mechanical interference to ensure connection stability. When the locking sleeve 7 slides to the second position, the wide groove section 10 provides radial retraction space for the annular bayonet 3, allowing it to disengage from the groove and unlock. In terms of characteristic connection relationships, the sliding engagement between the locking sleeve 7 and the outer wall of the socket 4 achieves functional switching through axial freedom, while the radial engagement between the annular bayonet 3 and the groove depends on the coaxial insertion accuracy of the plug 1 and socket 4. The dual-limiting design, combining the locking sleeve 7 and narrow slot 9 with the annular groove 6, can resist automotive vibrations or spacecraft impact loads. The axial sliding locking sleeve 7 requires no rotation or complex movements, adapting to the needs of operation in confined spaces. The elastic deformation capability of the annular groove 3 allows the plug 1 and socket 4 to be connected even with minor alignment deviations, reducing assembly precision requirements. In the automotive field, this structure is suitable for scenarios requiring frequent maintenance, such as vehicle sensors and wiring harness interfaces; in the aerospace field, it can be used for external equipment connections, and its vibration resistance can withstand the mechanical environment during launch.

[0055] In one specific embodiment, the quick-plug connector 100 further includes a resilient reset mechanism 11;

[0056] The elastic reset mechanism 11 includes an annular retaining ring 12 disposed on the outer wall of the socket 4 and a helical spring 13 sleeved on the outer wall of the socket 4;

[0057] The helical spring 13 is axially disposed between the annular retaining ring 12 and the inner end face of the locking sleeve 7;

[0058] The locking sleeve 7 can slide along the outer wall of the socket 4 between the first position of the compression spring and the second position of the release spring;

[0059] When the locking sleeve 7 is slid to the second position by an external force, the helical spring 13 is compressed between the annular retaining ring 12 and the inner end face of the locking sleeve 7 and generates a restoring elastic force.

[0060] When the external force is released, the return force of the helical spring 13 drives the locking sleeve 7 to slide axially back from the second position to the first position, so that the narrow groove section 9 re-forms the vertical axial constraint on the annular bayonet 3.

[0061] Furthermore, the elastic reset mechanism 11 achieves automatic reset of the locking sleeve 7 through the axial arrangement of the annular retaining ring 12 and the helical spring 13. The annular retaining ring 12 is fixed to the outer wall of the socket 4, serving as a static support point for the spring. The helical spring 13 is sleeved on the outer wall of the socket 4 and pre-compressed between the retaining ring and the inner end face of the locking sleeve 7, forming an elastic energy storage structure. When the locking sleeve 7 is pushed to the second position by an external force, the spring is further compressed to store energy. After the external force is released, the spring releases energy to drive the locking sleeve 7 back to the first position. The axial arrangement of the spring ensures that the direction of the reset force is consistent with the sliding path of the locking sleeve 7, avoiding jamming caused by lateral force. The contact surface design between the annular retaining ring 12 and the inner end face of the locking sleeve 7 must ensure the uniformity of force when the spring is compressed. Automatic reset reduces manual intervention, enabling one-handed operation in automotive production lines or aerospace equipment cabins. Spring reset forces the locking sleeve 7 to return to the locked position, avoiding connection failure due to incomplete locking. The linear elastic characteristics of the helical spring 13 are more fatigue-resistant than traditional snap-fit ​​structures, making it suitable for high-frequency insertion and removal scenarios.

[0062] In one specific embodiment, the quick-plug connector 100 further includes a plug terminal assembly 14, which includes a pin module 15 fixed in the plug-in channel 2 and a socket 4 terminal module disposed at the bottom of the plug cavity 5. The pin module 15 is axially plugged into the terminal module to form a conductive path for electrical connection.

[0063] Furthermore, the plug-in terminal assembly 14 achieves electrical connection with the socket 4 terminal module through axial insertion of the pin module 15. The insulating fixing base 17 of the pin module 15 is made of thermosetting material through in-mold injection molding, precisely fixing multiple parallel conductive pins 18. The ends of the pins are gold-plated to reduce contact resistance. The base 19 of the socket 4 terminal module has embedded elastic contact members 20, which are made of beryllium copper alloy through stamping. The open end of the contact member has a flared guiding structure and multiple contact springs inside. When the plug 1 is inserted into the socket 4, the conductive pins 18 are inserted axially into the open end of the contact member 20, and the springs and the pin surfaces form distributed interference contact. The interference fit between the insulating fixing base 17 and the insertion channel 2 ensures the anti-rotation positioning of the pin module 15, while the screw fixing between the base 19 and the bottom of the insertion cavity 5 provides rigid support for the socket 4 terminal module. The multi-point contact design increases the effective contact area, making it suitable for high-current transmission in automotive high-voltage systems. The redundant contact points of the elastic contact element 20 can distribute wear under vibration, extending electrical life. The shielding structure of the insulating mounting base 17 and the base 19 can suppress high-frequency interference, meeting the electromagnetic compatibility requirements of aerospace electronic equipment. In the connection of new energy vehicle battery packs, this design can support the transient high current of fast charging; in spacecraft signal transmission interfaces, its contact reliability can prevent signal loss in deep space environments.

[0064] In one specific embodiment, the pin module 15 includes a fixing base 17 and a plurality of conductive pins 18 embedded therein, the conductive pins 18 extending along the axial direction of the plug 1 and parallel to the end face of the plug 1;

[0065] The socket 4 terminal module includes a base 19 fixedly connected to the insertion cavity 5 and a plurality of contact members 20 embedded therein, with the open end of each elastic contact member 20 extending toward the insertion direction.

[0066] When the plug 1 and the socket 4 are connected, the conductive pin 18 is inserted into the open end of the corresponding contact 20, so that the conductive pin 18 and the contact 20 form an interference fit conductive path.

[0067] Furthermore, detailed optimizations to the pin module 15 and the socket 4 terminal module further enhance electrical connection performance. The conductive pins 18 feature a rectangular cross-section design, and their arrangement parallel to the end face of the plug 1 maximizes the utilization of the insertion channel 2 cross-sectional area. Laser-engraved micro-textures on the pin surface increase contact friction. The extension length of the open end of the socket 4 contact 20 has been optimized through simulation to ensure gradual deformation of the spring during pin insertion, avoiding stress concentration. The insulating mounting base 17 incorporates guide ribs that cooperate with the guide groove of the base 19 to achieve pre-alignment during initial insertion. The parallel arrangement of the pins and the axial extension of the contact 20 form an "insertion-expansion" mating pattern. The chamfered design at the pin ends matches the taper of the flared opening of the contact 20, reducing insertion resistance. The guide structure and taper fit smooth the insertion force curve, reducing labor intensity during automotive wiring harness assembly. The multi-point contact combination of the micro-textured surface and the spring maintains stable contact resistance even under spacecraft vibration conditions. The compact arrangement of the rectangular pins adapts to the miniaturization trend of automotive electronic equipment. For example, in automotive Ethernet connectors, this design can support 10Gbps high-speed transmission; in spacecraft power distribution units, its low insertion and extraction force characteristics are beneficial for automated operation of robotic arms.

[0068] In one specific embodiment, the end of the annular bayonet 3 is provided with an axial buffer structure 21, the buffer structure including an elastic flange 22 arranged circumferentially along the end face of the annular bayonet 3;

[0069] The elastic flange 22 and the limiting surface of the locking sleeve 7 are axially opposite each other. When the plug 1 and the socket 4 are plugged in, the elastic flange 22 and the limiting surface make elastic contact to form an axial buffer fit.

[0070] Furthermore, the axial buffer structure 21 at the end of the annular bayonet 3 absorbs impact energy through the deformation of the elastic flange 22. The elastic flange 22 is integrated with the body of the annular bayonet 3 using a silicone rubber co-injection molding process, and its cross-section is wavy to provide multi-level buffer stroke. When the plug 1 and socket 4 are fully engaged, the elastic flange 22 contacts the limiting surface of the locking sleeve 7, dispersing the axial impact force through material compression. The continuous circumferential distribution of the elastic flange 22 ensures uniform force distribution, and its thickness gradient design is thicker near the root of the bayonet and thinner at the edges to achieve progressive buffering. In the instant of a car collision or spacecraft landing, the buffer structure can absorb instantaneous impacts of up to 50G, preventing mechanical damage to the connector; the compression deformation of the elastic material can fill the microscopic gap between the plug 1 and socket 4, improving the IP protection level in car wading scenarios; and reducing hard contact wear between the metal bayonet and the locking sleeve 7, making it suitable for the durability requirements of frequent extravehicular operations in spacecraft.

[0071] In one specific embodiment, the locking sleeve 7 is provided with a retaining strip 23 for abutting against the insertion part of the socket 4 to form an axial limit.

[0072] Furthermore, the axial limiting design of the locking sleeve 7's retaining strip 23 and the socket 4's insertion part achieves stroke control through geometric interference. The retaining strip 23 adopts a T-shaped cross-section, forming a sliding fit with the annular groove on the outer wall of the socket 4, and its end is provided with a limiting boss. When the locking sleeve 7 slides to the limit position, the boss contacts the end face of the groove, limiting further movement. The clearance fit between the retaining strip 23 and the groove must ensure smooth sliding, and the height of the boss is mechanically calculated to avoid overload breakage. In blind insertion operations of automotive wiring harnesses, this prevents damage to the mechanism due to excessive pushing of the locking sleeve 7; ensures the correspondence between the narrow / wide slot section 10 and the annular bayonet 3, so that spacecraft can still reliably lock in a weightless environment; the T-shaped retaining strip 23 increases the torsional stiffness of the locking sleeve 7, adapting to the multi-directional force conditions of automotive chassis connectors.

[0073] In one specific embodiment, an operating portion 24 is formed at the outer wall end of the locking sleeve 7, and a first anti-slip structure 25 is provided on the circumferential surface of the operating portion 24;

[0074] The first anti-slip structure 25 is composed of multiple strip-shaped grooves that extend parallel to each other along the axial direction of the locking sleeve 7. The strip-shaped grooves are evenly distributed circumferentially to form a friction-enhancing surface for finger pushing and pulling.

[0075] Furthermore, the outer wall end of the locking sleeve 7 is provided with an operating part 24, and its circumferential surface is provided with a first anti-slip structure 25, which is composed of multiple axial strip grooves distributed circumferentially. The strip grooves enhance the friction when the fingers push and pull, preventing slippage during operation. The axially extending grooves are in the same direction as the sliding direction of the locking sleeve 7, which conforms to the ergonomic design.

[0076] In one specific embodiment, the outer periphery of the plug end of the socket 4 is provided with a second anti-slip structure 27;

[0077] The second anti-slip structure 27 is composed of multiple second strip-shaped grooves extending parallel to each other along the axial direction of the socket 4, and the second strip-shaped grooves are evenly distributed circumferentially;

[0078] The second groove extends in the same direction as the axial pushing direction of the socket 4, forming a continuous longitudinal friction pattern.

[0079] Furthermore, the outer periphery of the socket 4 plug end is provided with a second anti-slip structure 27, which consists of multiple axial second strip grooves evenly distributed circumferentially. The longitudinal friction texture improves grip stability and facilitates force insertion and removal. The extension direction of the groove is consistent with the axial pushing direction of the socket 4, reducing operating resistance.

[0080] In one specific embodiment, a third anti-slip structure 29 is provided on the outer periphery of the end of the plug 1;

[0081] The third anti-slip structure 29 is composed of multiple third strip-shaped grooves extending parallel to the axial direction of the plug 1, and the third strip-shaped grooves are evenly distributed circumferentially.

[0082] The third groove extends in the same direction as the axial pushing direction of the plug 1, forming an axial anti-slip stripe that matches the finger contact surface.

[0083] Furthermore, a third anti-slip structure 29 is provided on the outer periphery of the end of the plug 1. It consists of axial third strip grooves that are circumferentially spaced to form anti-slip stripes that match the contact surface of the fingers, ensuring that the plug 1 is held firmly when plugged in and out, and avoiding misalignment due to slipping.

[0084] In one specific embodiment, the locking sleeve 7 is made of stainless steel.

[0085] Furthermore, the locking sleeve 7 is made of stainless steel. The high strength, corrosion resistance and wear resistance of stainless steel ensure that the locking sleeve 7 is not easily deformed or worn during frequent sliding, making it suitable for long-term use in industrial environments and extending the overall life of the connector.

[0086] Therefore, the locking sleeve 7 of this application is slidably fitted onto the outer wall of the socket 4. The inner wall of the locking sleeve 7 is provided with an axially extending stepped groove 8, which includes a narrow groove section 9 near the insertion direction and a wide groove section 10 away from the insertion direction. When the locking sleeve 7 is in the first position, the inner wall surface of the narrow groove section 9 and the annular groove 6 abut against the outer wall of the annular latch 3 to form a vertical axial limit. When the locking sleeve 7 slides axially to the second position, the wide groove section 10 faces the annular latch 3, and the annular latch 3 can deform vertically and exit the annular groove 6 through the wide groove section 10. This design enables this application to achieve quick insertion and removal while effectively improving connection stability and ease of operation.

[0087] The embodiments described above are merely examples of several implementations of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the scope of protection of this application.

Claims

1. A quick plug connector, characterized by The plug is axially extended to form a plug-in channel, and a ring-shaped notch is circumferentially protruded on the inner wall of the plug's mating end; The socket has a plug-in cavity matched with the plug, and a ring-shaped slot is circumferentially recessed on the inner wall of the plug-in cavity, which is matched with the ring-shaped notch, and when the plug is inserted into the socket, the ring-shaped notch and the ring-shaped slot form a radial clamping cooperation; The locking sleeve is slidably sleeved on the outer wall of the socket, and the inner wall of the locking sleeve is provided with an axially extended step groove, which includes a narrow groove segment close to the plug-in direction and a wide groove segment away from the plug-in direction; When the locking sleeve is in the first position, the inner wall surface of the narrow groove segment and the ring-shaped slot are respectively in abutment with the outer wall of the ring-shaped notch to form a vertical axial limit, and when the locking sleeve is axially slid to the second position, the wide groove segment is opposite to the ring-shaped notch, and the ring-shaped notch can be vertically and axially deformed and exit the ring-shaped slot through the wide groove segment. Further comprising an elastic reset mechanism; 2. A quick connect / disconnect coupling according to claim 1, wherein, The elastic reset mechanism includes a ring-shaped stop ring arranged on the outer wall of the socket and a coil spring sleeved on the outer wall of the socket; The coil spring is arranged axially between the ring-shaped stop ring and the inner end surface of the locking sleeve; The locking sleeve can slide along the outer wall of the socket between the first position of the compression spring and the second position of the release spring; When the locking sleeve is slid to the second position by external force, the coil spring is compressed between the ring-shaped stop ring and the inner end surface of the locking sleeve and generates a reset elastic force; When the external force is removed, the reset elastic force of the coil spring drives the locking sleeve to slide axially back to the first position from the second position, so that the narrow groove segment re-forms the vertical axial constraint on the ring-shaped notch. Further comprising a plug-in terminal assembly, which includes a plug pin module fixed in the plug-in channel and a socket terminal module arranged at the bottom of the plug-in cavity, and the plug pin module is axially matched with the terminal module to form an electrically conductive path.

3. A quick connect / disconnect coupling according to claim 1, wherein, The plug pin module includes a fixing seat and a plurality of conductive plug pins embedded therein, and the conductive plug pins are axially extended along the plug and parallel to the end surface of the plug; 4. A quick connect / disconnect coupling according to claim 3, wherein, The socket terminal module includes a base fixed with the plug-in cavity and a plurality of contact pieces embedded therein, and the open end of each elastic contact piece extends toward the plug-in direction; When the plug and the socket are completely plugged in, the conductive plug pins are inserted into the open end of the corresponding contact piece, so that the conductive plug pins and the contact pieces form an interference fit conductive path. The end of the ring-shaped notch is provided with an axial buffer structure, and the buffer structure includes a resilient flange circumferentially arranged on the end surface of the ring-shaped notch; 5. A quick connect / disconnect coupling according to claim 1, wherein, The resilient flange is axially arranged opposite to the limiting surface of the locking sleeve, and when the plug and the socket are completely plugged in, the resilient flange is in elastic contact with the limiting surface to form an axial buffer cooperation. A clamping strip is arranged on the locking sleeve to abut against the plug-in part of the socket to form an axial limit.

6. A quick disconnect connector according to claim 1, wherein, The outer wall end of the locking sleeve forms an operating part, and the circumferential surface of the operating part is provided with a first anti-slip structure; 7. A quick connect / disconnect coupling according to claim 1, wherein, The first anti-slip structure is composed of a plurality of strip-shaped grooves extending axially along the locking sleeve, and each strip-shaped groove is uniformly distributed circumferentially to form a friction-enhanced surface for finger pushing and pulling. The plug-in end of the socket is provided with a second anti-slip structure; 8. A quick connect / disconnect coupling according to claim 1, wherein, ​ The second anti-skid structure is composed of a plurality of second strip-shaped grooves extending in parallel along the axial direction of the socket, and each second strip-shaped groove is uniformly distributed in the circumferential direction; The extending direction of the second strip-shaped groove is consistent with the axial pushing direction of the socket, forming a continuous longitudinal frictional line.

9. A quick connect / disconnect coupling according to claim 1, wherein, The end portion of the plug is provided with a third anti-skid structure; The third anti-skid structure is composed of a plurality of third strip-shaped grooves extending in parallel along the axial direction of the plug, and each third strip-shaped groove is uniformly distributed in the circumferential direction; The extending direction of the third strip-shaped groove is consistent with the axial pushing direction of the plug, forming an axial anti-skid stripe matching the contact surface of the finger.

10. A quick connect / disconnect coupling according to claim 1, wherein, The locking sleeve is made of stainless steel.

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