Quick plug connector

Abstract

The utility model discloses a quick plug connector, which is characterized in that a first fastener is arranged on the side wall of a plug on a socket, a handle slideway communicated with a plug hole is arranged in a plug, an unlocking handle is mounted in the handle slideway in a sliding manner at a set distance, one end of the unlocking handle can extend out of the plug, and the other end of the unlocking handle can extend out of the plug. A second fastener at the other end of the unlocking handle slides to different positions along with the handle to be in locking buckling connection or separated tripping with a first fastener on a connecting plug in the inserting hole, an elastic piece formed by bending a reed or a wire spring is installed in the handle sliding way, and the two ends of the elastic piece are hinged to the side wall of the handle sliding way respectively. The middle portion of the elastic piece is bent to form a bending deformation portion capable of elastically deforming when pressed, the bending deformation portion of the elastic piece is always in close contact with the unlocking handle and provides elastic retaining force in the extending direction of the handle sliding way for the unlocking handle so that the unlocking handle can be kept at the locking position, and the unlocking handle is simple in structure, convenient to operate and high in practicability. The plug and the socket can be quickly plugged and separated.

Description

Technical Field

[0001] The utility model relates to a connector, in particular to a quick plug-in connector. Background Art

[0002] Existing plug-in connectors generally achieve fixed connection through the friction between the plug and the socket. When unplugging, the plug is held and pulled out forcefully. After long-term use of this type of connector, the friction between the plug and the socket will gradually decrease, resulting in poor connection stability and easy circuit breakage. In addition, plugging and unplugging consumes effort and is easy to damage the terminals.

[0003] In order to improve the plugging stability of the plug-in connector, an elastic snap-in structure is currently provided on the side walls of the plug and the socket of the plug-in connector. When the plug is plugged into the socket, the elastic snap-in structure on the side walls of the plug and the socket are automatically snapped together, thereby improving the connection stability between the plug and the socket. However, before unplugging the plug of this type of connector, the elastic snap-in structure on the side walls of the plug and the socket needs to be disengaged and unlocked before the plug can be pulled out. This is inconvenient and time-consuming to use. Utility Model Content

[0004] In order to overcome the above-mentioned defects, the utility model provides a quick-connect connector, which can realize quick unlocking of the socket and the plug, is easy to operate, has a simple overall structure and low manufacturing cost.

[0005] The utility model adopts a technical solution to solve the technical problem: a quick-connect connector, comprising a socket and a plug, wherein the plug connector on the socket can be inserted into the plug hole of the plug, a first fastener is formed on the side wall of the plug connector on the socket, a handle slide connected to the plug hole is further provided in the plug, an unlocking handle is installed in the handle slide which can slide a set distance, one end of the unlocking handle can extend to the outside of the plug through the opening of the handle slide, and a second fastener is provided at the other end of the unlocking handle, and the second fastener is connected to the plug as the handle slides to different positions The first fastener on the plug connector in the connecting hole is stopped to be snapped together or separated and released, and an elastic member formed by bending a spring sheet or a wire spring is also installed in the handle slide, and the two ends of the elastic member are respectively hingedly connected to the side walls of the handle slide, and the middle part of the elastic member is bent to form a bent deformation part that can be elastically deformed under pressure, and the bent deformation part of the elastic member is always in close contact with the unlocking handle and provides the unlocking handle with an elastic retaining force along the extension direction of the handle slide, and the elastic retaining force keeps the unlocking handle in a locked position state in which the second fastener is snapped together with the first fastener.

[0006] As a further improvement of the present invention, a step structure is provided on the unlocking handle, and the convex arc surface of the curved deformation portion in the middle of the elastic member is tightly against the step structure of the unlocking handle.

[0007] As a further improvement of the present invention, the two ends of the elastic member are respectively bent to form a V-shaped support with an opening toward the step structure of the unlocking handle. The middle part of the elastic member is a straight structure that fits tightly with the step structure on the unlocking handle. The two ends of the straight structure are respectively connected to one side wall of the V-shaped support at both ends of the elastic member to form a V-shaped structure with an opening direction opposite to the opening direction of the V-shaped support.

[0008] As a further improvement of the present invention, a limit stop surface is provided in the handle slide which is opposite to the step structure on the unlocking handle, and the convex arc surfaces of the bent portions of the V-shaped supports at both ends of the elastic member are tightly against the limit stop surface in the handle slide.

[0009] As a further improvement of the present invention, the handle slide extends along the tangential direction of the plug hole, and the handle slide and the plug hole are connected by a hollow channel. The first fastener is a boss provided on the outer wall of the plug connector and has an acute angle with the extension direction of the handle slide. The second fastener is a protrusion provided on the side wall of the other end of the unlocking handle. The protrusion can be slid along the extension direction of the unlocking slide and inserted into the hollow channel, and the protrusion can be stopped on an end surface of the boss facing the opening direction of the plug hole or separated from the boss as the unlocking handle slides.

[0010] As a further improvement of the present invention, the plug-in hole is a circular hole, the boss on the outside of the plug connector is an outward convex ring arranged on the outside of the end of the plug connector, the hollow channel is located on the side of the tangent position between the plug-in hole and the handle channel, and the end face of the protrusion on the side wall at the other end of the unlocking handle facing the axis direction of the plug-in hole is an arc surface or an inclined surface, and the angle between the arc surface or the inclined surface of the protrusion and the extension direction of the handle slide is greater than the angle between a section directly opposite to the plug connector and the hollow channel and the extension direction of the handle slide, and the side wall of the protrusion on the side wall at the other end of the unlocking handle facing the opening direction of the plug-in hole is an inclined surface, and the inclined surface forms an obtuse angle with the inner wall of the plug-in hole.

[0011] As a further improvement of the present invention, the opening portion of the handle slide forms a countersunk structure with a T-shaped cross-section, and one end of the unlocking handle is provided with a pressing head with an outwardly expanded size. The pressing head can be slidably accommodated in the countersunk structure, and the pressing head is stopped on the bottom surface of the countersunk structure along the sliding direction of the unlocking handle to limit the movement distance of the unlocking handle in the unlocking direction. The protrusion on the side wall at the other end of the unlocking handle is tightly pressed against the side wall of the hollow channel in the locked position to limit the movement distance of the unlocking handle in the locking direction.

[0012] As a further improvement of the present invention, the two ends of the elastic member are respectively hingedly connected to the side walls of the handle slide as follows: an inwardly convex hinge shaft is fixedly provided on the side wall of the handle slide, and the two ends of the elastic member are respectively bent to form an annular structure, and the annular structure is sleeved on the outside of the hinge shaft.

[0013] As a further improvement of the present invention, a guide block is protruding from the inner side wall of the handle slide, and a guide slot extending along the sliding direction thereof is provided on the side wall of the unlocking handle, and the guide slot can be slidably mounted on the outer side of the guide block.

[0014] As a further improvement of the utility model, an open handle receiving groove connected to the plug hole is provided on the side wall of the plug, a plurality of riveted columns are provided on the bottom surface of the handle receiving groove, and a cover is also provided. The cover covers the outer side of the opening of the handle receiving groove, and a plurality of riveted holes are provided on the side wall of the cover. The riveted columns on the bottom surface of the handle receiving groove are tightly plugged and fixed to the riveted holes on the side wall of the cover one by one, and a handle slide is formed between the handle receiving groove and the cover.

[0015] The beneficial effects of the utility model are as follows: the utility model provides a handle slide connected to the plug hole on the side wall of the plug, and an unlocking handle that can slide in the handle slide. The unlocking handle slides in the handle slide so that the second fastener on the unlocking handle extends into the plug hole and is engaged and connected to the first fastener on the plug connector inserted into the plug hole for positioning. At the same time, the elastic force fully generated by the spring sheet or the wire spring is used to provide the unlocking handle with an elastic force to maintain it in the locked position. After the plug and the socket are plugged in place, the plug connector is automatically fixed and positioned in the plug hole and cannot be pulled out, thereby realizing the automatic locking of the plug and the socket. When unplugging the plug, the unlocking handle is pressed by a finger to slide it in the handle slide to the unlocking position, the second fastener on the unlocking handle is disengaged from the first fastener on the plug connector of the socket, and the unlocking of the plug and the socket is The lock structure unlocks the plug and the socket while holding the plug, and then the plug can be directly unplugged, which realizes the quick unplugging of the plug from the socket, avoids the step-by-step unlocking and unplugging of the plug, and can be completed in one action; when the plug is inserted into the socket, the second fastener will automatically lock with the first fastener on the plug, and no additional operation is required. The elastic member of the utility model is formed by bending a reed sheet or a wire spring, which has a simple structure, high strength, is not easy to be damaged after long-term use, and has low manufacturing cost and is easy to assemble. Moreover, the reed sheet or wire spring of the utility model is formed into a special structure through multiple bending, so that its overall structure is stronger, the elastic deformation is more stable, and it is not easy to plastically deform after long-term use. The utility model has a simple structure and is easy to operate, can realize quick connection and separation of the plug and the socket, and is easy and quick to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the plug and the socket in the plugged state;

[0017] Figure 2 It is a three-dimensional diagram of the plug and the socket in a separated state;

[0018] Figure 3 It is a structural principle diagram of the plug and the socket in a locked state;

[0019] Figure 4 It is a structural schematic diagram of the plug and the socket in the unlocked state;

[0020] Figure 5 A three-dimensional diagram of a handle receiving groove on a side wall of the plug;

[0021] Figure 6 It is a three-dimensional diagram of the lid of the utility model;

[0022] Figure 7 It is a three-dimensional diagram of the elastic member of the utility model;

[0023] Figure 8 It is a three-dimensional diagram of the unlocking handle of the utility model. DETAILED DESCRIPTION

[0024] Embodiment: A quick-connect connector comprises a socket 1 and a plug 2, wherein a plug connector 11 on the socket 1 can be inserted into a plug hole 21 of the plug 2, a first fastener is formed on the side wall of the plug connector 11 on the socket 1, a handle slide 22 connected to the plug hole 21 is further provided in the plug 2, an unlocking handle 3 is installed in the handle slide 22 which can slide a set distance, one end of the unlocking handle 3 can extend to the outside of the plug 2 through the opening of the handle slide 22, and a second fastener is provided at the other end of the unlocking handle 3, and the second fastener is connected to the plug hole 21 as the handle slides to different positions. The first fastener on the plug connector 11 is stopped and fastened to be connected or separated and released, and an elastic member 4 formed by bending a spring sheet or a wire spring is also installed in the handle slide 22, and the two ends of the elastic member 4 are respectively hingedly connected to the side walls of the handle slide 22, and the middle part of the elastic member 4 is bent to form a bent deformation part that can be elastically deformed under pressure, and the bent deformation part of the elastic member 4 is always in close contact with the unlocking handle 3 and provides the unlocking handle 3 with an elastic retaining force along the extension direction of the handle slide 22, and the elastic retaining force keeps the unlocking handle 3 in the locked position state in which the second fastener is fastened to the first fastener.

[0025] When the plug 2 is inserted into the socket 1, the plug connector 11 on the socket 1 is simultaneously inserted into the plug hole 21 on the plug 2. When the plug is in place, the unlocking handle 3 on the plug 2 automatically reaches the locked position under the automatic action of the elastic member 4. At this time, the second fastener on the unlocking handle 3 just extends into the plug hole 21 and is snap-connected with the first fastener on the side wall of the plug connector 11 of the socket 1. At this time, the plug post and the plug hole 21 are stopped and positioned, and the plug 2 and the socket 1 cannot be separated. When it is necessary to unlock and separate the plug 2 from the socket 1, it is only necessary to press the unlocking handle 3, and the unlocking handle 3 overcomes the elastic force of the elastic member 4 and slides in the unlocking direction. At this time, the second fastener on the unlocking handle 3 is gradually disengaged from the first fastener on the plug post, thereby realizing the disengagement of the plug connector 11 on the socket 1. At this time, the plug 2 can be easily pulled out from the socket 1. At the same time, the two ends of the elastic member 4 will rotate around the hinge shaft 223 at a certain angle to be released in the length direction. At this time, the deformed part of the elastic member 4 produces elastic The spring or wire spring of the elastic member 4 is automatically reset under the action of its own elastic force when the unlocking handle 3 is released. The elastic member 4 of the utility model is formed by bending the spring or wire spring. The spring or wire spring has high folding strength and is not easily damaged after long-term use. The two ends of the elastic member 4 are hinged to the side walls of the handle slide 22. When the bent and deformed part is compressed and deformed to produce a change in length direction, it can automatically swing and adjust to avoid damage to the elastic member 4. The elastic member 4 has a simple structure, occupies a small space, and is low in price, which effectively reduces the cost of the locking structure of the plug 2 and the socket 1. The structure is easy to operate, ensures the stability of the electrical connection between the plug 2 and the socket 1 when the plug is plugged in, and facilitates the rapid unlocking and separation of the two. When the plug 2 is separated from the socket 1, no tools are required. Just grab the plug 2 with your hand and press the unlocking handle 3 with your thumb. The plug 2 and the socket 1 can be unlocked. While pressing the unlocking handle 3, pull the plug 2 outward to unplug the plug 2 from the socket 1. It is easy to use.

[0026] The unlocking handle 3 is provided with a step structure 31, and the convex arc surface of the bent and deformed part in the middle of the elastic member 4 is tightly against the step structure 31 of the unlocking handle 3. When the unlocking handle 3 slides in the unlocking direction, while driving the second fastener to gradually separate from the first fastener, the step structure 31 on the unlocking handle 3 presses the bent and deformed part of the spring or wire spring to gradually reduce its curvature. When the unlocking handle 3 is released, the spring or wire spring of the elastic member 4 automatically resets under the action of its own elastic force, and then presses against the step structure 31 of the unlocking handle 3 to automatically reset the unlocking handle 3 and the second fastener thereon to the locked state. This structure facilitates the installation of the unlocking handle 3 and the elastic member 4 in the handle slide 22 to avoid mutual interference.

[0027] The two ends of the elastic member 4 are respectively bent to form a V-shaped support 41 with an opening facing the step structure 31 of the unlocking handle 3. The middle part of the elastic member 4 is a straight structure that fits tightly with the step structure 31 on the unlocking handle 3. The two ends of the straight structure are respectively connected to one side wall of the V-shaped support 41 at both ends of the elastic member 4 to form a V-shaped structure 42 with an opening direction opposite to the opening direction of the V-shaped support 41. The leaf spring or wire spring serving as the elastic member 4 is formed by multiple bendings, and its two ends are bent to form the V-shaped support 41. When the V-shaped structure 42 in the middle of the elastic member 4 is deformed under pressure, the V-shaped supports 41 at both ends of the elastic member 4 are also deformed synchronously, so as to improve the strength and elastic force of the elastic member 4.

[0028] The handle slide 22 is provided with a limit stop surface 221 facing the step structure 31 on the unlocking handle 3, and the convex arc surfaces of the bent parts of the V-shaped supports 41 at both ends of the elastic member 4 are tightly against the limit stop surfaces 221 in the handle slide 22. When the unlocking handle 3 slides up and down, the V-shaped structure 42 in the middle of the elastic member 4 is elastically deformed, and the V-shaped supports 41 at both ends of the elastic member 4 are elastically deformed, and their convex arc surfaces slide along the limit stop surfaces 221 in the handle slide 22. The limit stop surfaces 221 in the handle slide 22 support the V-shaped supports 41 of the elastic member 4, which increases the strength of the elastic member 4 and ensures that the unlocking handle 3 slides linearly. The two ends of the elastic member 4 are deformed synchronously, ensuring that the V-shaped structure 42 in the middle of the elastic member 4 will not be separated from the step structure 31 on the unlocking handle 3. The elastic member 4 is not easily damaged after long-term use, ensuring that the unlocking handle 3 slides smoothly.

[0029] The handle slide 22 extends in the tangential direction of the plug hole 21, and the handle slide 22 and the plug hole 21 are connected by a hollow channel 222. The first fastener is a boss provided on the outer wall of the plug connector 11 and having an acute angle with the extension direction of the handle slide 22. The second fastener is a convex block 32 provided on the side wall of the other end of the unlocking handle 3. The convex block 32 can be inserted into the hollow channel 222 so as to slide along the extension direction of the unlocking slide, and the convex block 32 can be stopped on an end face of the boss facing the opening direction of the plug hole 21 or separated from the boss as the unlocking handle 3 slides. Generally, a flange is provided at the end of the plug connector 11 of the socket 1, and the second fastener blocks the flange of the plug connector 11 to prevent the plug connector 11 from sliding out of the plug hole 21. Alternatively, a radial slot is formed on the plug connector 11, and the second fastener is inserted into the slot of the plug connector 11 to prevent the plug connector 11 from sliding out of the plug hole 21.

[0030] The plug hole 21 is a circular hole, the boss on the outside of the plug connector 11 is an outer convex ring 111 arranged on the outside of the end of the plug connector 11, the hollow channel 222 is located on the side of the tangent position between the plug hole 21 and the handle channel, the end face of the protrusion 32 on the side wall at the other end of the unlocking handle 3 facing the axial direction of the plug hole 21 is an arc surface or an inclined surface, and the angle between the arc surface or the inclined surface of the protrusion 32 and the extension direction of the handle slide 22 is greater than the angle between the section of the plug connector 11 facing the hollow channel 222 and the extension direction of the handle slide 22, the side wall of the protrusion 32 on the side wall at the other end of the unlocking handle 3 facing the opening direction of the plug hole 21 is an inclined surface, and the inclined surface forms an obtuse angle with the inner wall of the plug hole 21. When the unlocking handle 3 moves along the handle slide 22, the protrusion 32 on the side wall at the other end thereof will synchronously move in the hollow channel 222 along the axial direction of the plug hole 21, and when the protrusion 32 moves along the unlocking handle 3, the closer it is to the intersection of the handle slide 22 and the plug hole 21, the longer the protrusion 32 extends into the plug hole 21; when the protrusion 32 moves along the unlocking handle 3, the farther it is from the intersection of the handle slide 22 and the plug hole 21, the shorter the protrusion 32 extends into the plug hole 21, and finally exits the plug hole 21. Then, the unlocking handle 3 can slide along the handle slide 22 to achieve that the protrusion 32 on it blocks or disengages from the outer convex ring 111 on the outer side wall of the plug connector 11 inserted in the plug hole 21, thereby achieving the locking and unlocking of the plug 2 and the socket 1. The utility model utilizes the elastic force of the elastic member 4 to keep the protrusion 32 in the plug hole when there is no external force. The convex ring 111 on the outer wall of the plug post can better pass over the convex block 32 on the unlocking handle 3, and the convex block 32 on the unlocking handle 3 automatically pops out to block the convex ring 111 of the plug post, making it impossible for the plug post to move to the outside of the plug hole 21, thereby realizing the locking of the plug 2 and the socket 1. The above structure is simple and occupies little space. The structure is also suitable for the plug hole 21 being an elliptical or polygonal structure with a beveled edge. These are equivalent replacement structures that can be easily thought of by technicians in this field based on this patent and belong to the protection scope of this patent.

[0031] The opening portion of the handle slide 22 forms a countersunk structure 225 with a T-shaped cross-section. One end of the unlocking handle 3 is provided with a pressing head 34 with an outwardly expanded size. The pressing head 34 can be slidably accommodated in the countersunk structure 225, and the pressing head 34 is stopped on the bottom surface of the countersunk structure 225 along the sliding direction of the unlocking handle 3 to limit the movement distance of the unlocking handle 3 in the unlocking direction. The protrusion 32 on the side wall at the other end of the unlocking handle 3 is tightly pressed against the side wall of the hollow channel 222 in the locked position to limit the movement distance of the unlocking handle 3 in the locking direction. When the unlocking handle 3 slides, the unlocking handle 3 that has slid to the fully unlocked position is blocked by the bottom surface of the countersunk structure 225 at the opening of the handle slide 22 and the bottom surface of the handle slide 22, so that the unlocking handle 3 can no longer slide and remains in a suitable unlocking position. When the unlocking handle 3 slides in the opposite direction under the elastic force of the elastic member 4, the side wall of the hollow channel 222 blocks the protrusion 32 on the unlocking handle 3 that has reached the locked position, so that after the unlocking handle 3 is released, the protrusion 32 on the unlocking handle 3 automatically remains in the locked position. When the protrusion 32 is in the locked position, it is closest to the tangent position of the handle channel and the plug hole 21.

[0032] The two ends of the elastic member 4 are respectively hingedly connected to the side wall of the handle slide 22 as follows: an inwardly convex hinge shaft 223 is fixedly provided on the side wall of the handle slide 22, and the two ends of the elastic member 4 are respectively bent to form an annular structure 43, and the annular structure 43 is sleeved on the outside of the hinge shaft 223. The hinge shaft 223 can be located on a side wall of the handle slide 22, and an avoidance groove for the hinge shaft 223 to slide and insert can be provided on the side wall of the unlocking handle 3, so as to improve the strength of the hinge shaft 223 and guide the sliding of the unlocking handle 3.

[0033] A guide block 224 is also protruded on the inner side wall of the handle slide 22, and a guide slot 33 extending along the sliding direction is provided on the side wall of the unlocking handle 3, and the guide slot 33 can be slidably sleeved on the outer side of the guide block 224. When the unlocking handle 3 slides, the guide slot 33 and the guide block 224 cooperate to prevent the unlocking handle 3 from tilting when sliding, resulting in unlocking failure.

[0034] The side wall of the plug 2 is provided with an open handle receiving groove 23 connected with the plug hole 21, and the bottom surface of the handle receiving groove 23 is provided with a plurality of riveted columns 231, and a cover 24 is also provided, the cover 24 covers the outside of the opening of the handle receiving groove 23, and the side wall of the cover 24 is provided with a plurality of riveted holes 241, and the riveted columns 231 on the bottom surface of the handle receiving groove 23 and the riveted holes 241 on the side wall of the cover 24 are closely plugged and fixed one by one, and the handle receiving groove 23 and the cover 24 jointly form a handle slide 22. The handle slide 22 adopts a split structure, which is convenient for assembling and positioning the unlocking handle 3 and the elastic member 4 in the handle slide 22.

Claims

1. A quick-connect connector, comprising a socket (1) and a plug (2), wherein a plug connector (11) on the socket can be inserted into a plug hole (21) of the plug, and wherein: A first fastener is formed on the side wall of the plug connector on the socket, and a handle slide (22) connected to the plug hole is also provided in the plug, and an unlocking handle (3) is installed in the handle slide so as to be able to slide a set distance, and one end of the unlocking handle can extend to the outside of the plug through the opening of the handle slide, and a second fastener is provided at the other end of the unlocking handle, and the second fastener is locked and connected or separated and disengaged with the first fastener on the plug connector in the plug hole as the handle slides to different positions, and an elastic member (4) formed by bending a spring sheet or a wire spring is also installed in the handle slide, and the two ends of the elastic member are respectively hingedly connected to the side walls of the handle slide, and the middle part of the elastic member is bent to form a bent deformation part that can be elastically deformed under pressure, and the bent deformation part of the elastic member is always in close contact with the unlocking handle and provides the unlocking handle with an elastic retaining force along the extension direction of the handle slide, and the elastic retaining force keeps the unlocking handle in a locked position state in which the second fastener is fastened and connected with the first fastener.

2. The quick-connect connector according to claim 1, characterized in that: The unlocking handle is provided with a step structure (31), and the convex arc surface of the bent deformation portion in the middle of the elastic member is tightly against the unlocking handle step structure.

3. The quick-connect connector according to claim 2, characterized in that: The two ends of the elastic member are respectively bent to form a V-shaped support (41) with an opening facing the step structure of the unlocking handle, and the middle part of the elastic member is a straight structure that fits tightly with the step structure on the unlocking handle. The two ends of the straight structure are respectively connected to one side wall of the V-shaped support at the two ends of the elastic member to form a V-shaped structure (42) with an opening direction opposite to the opening direction of the V-shaped support.

4. The quick-connect connector according to claim 3, characterized in that: A limit stop surface (221) is provided in the handle slide and is directly opposite to the step structure on the unlocking handle, and the convex arc surfaces of the bent parts of the V-shaped supports at both ends of the elastic member are tightly against the limit stop surface in the handle slide.

5. The quick-connect connector according to claim 3, characterized in that: The handle slide extends in a tangential direction of the plug hole, and the handle slide and the plug hole are connected via a hollow channel (222); the first fastener is a boss arranged on the outer wall of the plug connector and having an acute angle with the extension direction of the handle slide; the second fastener is a convex block (32) arranged on the side wall of the other end of the unlocking handle; the convex block can be inserted into the hollow channel so as to slide along the extension direction of the unlocking slide, and the convex block can be stopped on an end surface of the convex block facing the opening direction of the plug hole or separated from the convex block as the unlocking handle slides.

6. The quick-connect connector according to claim 5, characterized in that: The plug hole is a circular hole, the boss on the outside of the plug connector is an outer convex ring (111) arranged on the outside of the plug connector end, the hollow channel is located on the side of the tangent position between the plug hole and the handle channel, the end face of the protrusion on the side wall at the other end of the unlocking handle facing the axis direction of the plug hole is an arc surface or an inclined surface, and the angle between the arc surface or the inclined surface of the protrusion and the extension direction of the handle slide is greater than the angle between the section of the plug connector directly facing the hollow channel and the extension direction of the handle slide, and the side wall of the protrusion on the side wall at the other end of the unlocking handle facing the opening direction of the plug hole is an inclined surface, and the inclined surface forms an obtuse angle with the inner wall of the plug hole.

7. The quick-connect connector according to claim 5, characterized in that: The handle slide opening forms a countersunk structure (225) with a T-shaped cross section, and one end of the unlocking handle is provided with a pressing head (34) with an outwardly expanded size, and the pressing head can be slidably accommodated in the countersunk structure, and the pressing head is stopped on the bottom surface of the countersunk structure along the sliding direction of the unlocking handle to limit the movement distance of the unlocking handle in the unlocking direction, and the protrusion on the side wall of the other end of the unlocking handle is tightly pressed against the side wall of the hollow channel when in the locked position to limit the movement distance of the unlocking handle in the locking direction.

8. The quick-connect connector according to claim 2, characterized in that: The structure in which the two ends of the elastic member are respectively hingedly connected to the side wall of the handle slide is as follows: an inwardly convex hinge shaft (223) is fixedly provided on the side wall of the handle slide, and the two ends of the elastic member are respectively bent to form an annular structure (43), and the annular structure is sleeved on the outside of the hinge shaft.

9. The quick-connect connector according to claim 1, characterized in that: A guide block (224) is also protrudingly provided on the inner side wall of the handle slide, and a guide slide groove (33) extending along the sliding direction thereof is provided on the side wall of the unlocking handle, and the guide slide groove can be slidably sleeved on the outer side of the guide block.

10. The quick-connect connector according to claim 1, characterized in that: The plug side wall is provided with an open handle receiving groove (23) connected to the plug hole, a plurality of riveted columns (231) are provided on the bottom surface of the handle receiving groove, and a cover (24) is also provided, the cover covers the outer side of the handle receiving groove opening, a plurality of riveted holes (241) are provided on the side wall of the cover, the riveted columns on the bottom surface of the handle receiving groove and the riveted holes on the side wall of the cover are closely plugged and fixed one by one, and a handle slide is formed between the handle receiving groove and the cover.

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