Easy-to-operate plug-in connector

Abstract

The present invention discloses an easy-to-operate plug-in connector, comprising a plug and a socket, wherein the plug can be plugged into the socket to achieve electrical conduction, and the end of the socket connected to the circuit board is set as the lower end, and a first snap structure is provided on the upper end surface of the socket, and a second snap structure is provided on the side wall of the plug facing the socket. When the plug is inserted into the socket, the second snap structure can be snapped together with the first snap structure. A locking handle is also installed on the plug, and the movement of the locking handle can drive the second snap structure to move and disengage from the first snap structure. The present invention effectively reduces the external dimensions of the plug and socket products, so that the products can be suitable for installation in a compact environment and are easy to operate. An optional threaded connection method can also be provided at the same position of the locking handle to increase the stability of the fixed connection between the plug and the socket. The locking handle can also be changed in position according to different needs, and the structure is more flexible.

Description

Technical Field

[0001] The present invention relates to a connector, in particular to an easy-to-operate plug-in connector. Background Art

[0002] Plug-in terminal blocks, which combine wiring and circuit board functions, offer the advantages of quick installation, space-saving space, and easy maintenance. The plug features a wire entry hole for connecting the wires, which then connects to the conductive terminals, thereby achieving electrical continuity between the terminals and the wires. However, since the plug and socket connect solely through friction, they can easily become loose or even come undone due to wire movement, vibration from equipment or machines, and other factors, potentially affecting the stability of transmitted signals or current.

[0003] To solve the problem of loose plugs and sockets, locking mechanisms are currently being installed on plugs and sockets on the market to achieve a tightening effect, such as fixed hooks and threaded connections. However, all locking mechanisms are on both sides of the product, resulting in a larger product size, which cannot meet the requirements of use in compact environments and cannot meet the needs of multiple fixing methods at the same time. Summary of the Invention

[0004] In order to overcome the above-mentioned defects, the present invention provides an easy-to-operate plug-in connector, which can reach an automatic locking state when the plug and socket are plugged in, and the product has a small size and is easy to plug in and unlock the plug and socket.

[0005] The present invention adopts a technical solution to solve its technical problems: an easy-to-operate plug-in connector, including a plug and a socket, wherein the plug can be plugged into the socket to achieve electrical conduction, and the end of the socket connected to the circuit board is set as the lower end, and a first snap-on structure is provided on the upper end surface of the socket, and a second snap-on structure is provided on the side wall of the plug facing the socket. When the plug is inserted into the socket, the second snap-on structure can be snapped together with the first snap-on structure. A locking handle is also installed on the plug, and the movement of the locking handle can drive the second snap-on structure to move and disengage from the first snap-on structure.

[0006] As a further improvement of the present invention, the first snap-in structure is a concave snap-in structure provided on the upper end surface of the socket, and the second snap-in structure is an elastic snap-in provided on the side wall of the plug facing the socket. The elastic snap-in can be inserted into the concave snap-in structure on the upper end surface of the socket under the action of elastic force, and the concave snap-in structure is stopped on the elastic snap-in surface along the side wall in the direction of pulling out the plug and the socket. The movement of the locking handle can drive the elastic snap-in to overcome the elastic force and move out of the concave snap-in groove of the socket.

[0007] As a further improvement of the present invention, the elastic clip includes a cantilever integrally formed on the side wall of the plug facing the socket and a barb provided at the end of the cantilever, and the barb can be accommodated in the concave slot of the socket and hooked with the side wall of the concave slot facing the plug.

[0008] As a further improvement of the present invention, an inclined guide slide is formed on the upper end surface of the socket, one end of the bottom surface of the inclined guide slide is opposite to the elastic clip at the upper end of the plug, and the other end of the bottom surface of the inclined guide slide is opposite to the concave slot at the upper end of the socket. The height of one end of the bottom surface of the inclined guide slide is higher than the height of the other end, and the elastic clip can slide along the bottom surface of the inclined guide slide and finally slide into the concave slot.

[0009] As a further improvement of the present invention, a cavity structure is formed inside the plug, and a first opening for one end of the second snap structure to extend into is formed on the side wall of the cavity structure facing the socket, and a slope structure with a set angle to its tripping movement direction is provided on one end of the second snap structure. A second opening is also provided on the side wall of the cavity structure, and the locking handle can be slid a set distance and inserted into the cavity structure, and the sliding direction of the locking handle has an angle with the inclination direction of the slope structure at one end of the second snap structure. One end of the locking handle is in close contact with the slope structure on the second snap structure, and the other end of the locking handle extends out of the outside of the plug through the second opening on the side wall of the cavity structure.

[0010] As a further improvement of the present invention, the locking handle includes a connecting plate, a pressing surface, a positioning shaft, a reset piece and a top block, and two opposite side walls in the plug cavity structure are respectively provided with a long strip slide groove with a set angle with the upper and lower directions, the connecting plate is accommodated inside the cavity structure, the top block is arranged at one end of the connecting plate, the pressing surface is fixedly arranged at the other end of the connecting plate, the pressing surface is located at the outside of the plug, the positioning shaft is fixedly installed on the connecting plate, and the two ends of the positioning shaft can be slidably inserted in the long strip slide groove, and the pressing surface at the other end of the connecting plate can be pressed to drive the positioning shaft to slide in the long strip slide groove through the connecting plate, and the top block moves together with the connecting plate to press the inclined structure surface at one end of the second clip structure, and the reset piece can provide the connecting plate with an elastic reset force to keep the top block from being separated from the inclined structure at one end of the second clip structure.

[0011] As a further improvement of the present invention, the connecting plate is L-shaped, and the long strip slide grooves on the two opposite side walls of the cavity structure of the plug extend along an inclined direction with an acute angle to the horizontal direction. The two positioning axes are symmetrically fixed on both sides of the corner of the L-shaped structure of the connecting plate. The reset member is a cantilevered arc-shaped spring structure integrally formed on the side wall of the connecting plate. The end side wall of the reset member is tightly attached to the lower side of the cavity structure of the plug, and the other end of the connecting plate extends from the second opening at the upper end of the box structure of the plug. The pressing surface on the other end of the connecting plate stops at the outer side of the upper end surface of the plug.

[0012] As a further improvement of the present invention, an anti-slip protrusion structure is further provided on the side wall of the connecting plate, and the anti-slip protrusion structure stops at the inner surface of the side wall of the cavity structure of the plug where the second opening is provided.

[0013] As a further improvement of the present invention, anti-displacement grooves are formed on both side walls of the second opening of the cavity structure of the plug, and anti-displacement protrusions are provided on both side walls of the other end of the connecting plate, and the anti-displacement protrusions can be inserted into the anti-displacement grooves.

[0014] As a further improvement of the present invention, the plug is further provided with a bolt accommodating hole located on the lower side of the cavity structure and extending along the plug-in direction of the plug and the socket. An auxiliary screw is inserted into the bolt accommodating hole, which can rotate in the circumferential direction and slide axially a set distance. The auxiliary screw extends out of the plug toward a side of the socket by a set distance. A connecting threaded hole is provided on the side wall of the socket facing the plug, and the auxiliary screw can be movably threadedly connected to the connecting threaded hole.

[0015] The beneficial effects of the present invention are as follows: when the socket of the present invention is plugged into the plug, the second snap structure on the side wall of the plug facing the socket automatically snaps into the first snap structure on the upper end surface of the socket, thereby realizing automatic locking of the plug and the socket and preventing the plug and the socket from loosening due to external force. The first snap structure and the second snap structure are not arranged on the two side walls in the width direction of the plug and the socket, which effectively reduces the external dimensions of the plug and socket products, making the products suitable for installation in compact environments. The locking handle of the present invention can realize the disengagement of the second snap structure from the first snap structure by pressing the pressing surface, which is easy to operate. The locking handle is designed inside the product and does not occupy the external space of the product. The present invention can also be provided with an optional threaded connection method at the same position of the locking handle to increase the stability of the fixed connection between the plug and the socket. The locking handle can also be changed in position according to different needs, and the structure is more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a diagram of the plug and socket of the present invention in a first separated state;

[0017] Figure 2 This is a diagram of the plug and socket of the present invention in a second split state;

[0018] Figure 3 This is a schematic diagram of the first buckle structure and the second buckle structure of the present invention being engaged;

[0019] Figure 4 This is a schematic diagram of the first buckle structure and the second buckle structure of the present invention in a disengaged state;

[0020] Figure 5 This is a cross-sectional view of the plug and socket of the present invention being connected;

[0021] Figure 6 It is a cross-sectional view of the first buckle structure and the second buckle structure of the present invention in a buckled state;

[0022] Figure 7 A three-dimensional diagram of the lock handle of the present invention;

[0023] Figure 8 is a first cross-sectional perspective view of the plug of the present invention;

[0024] Figure 9 is a second cross-sectional perspective view of the plug of the present invention;

[0025] Figure 10 This is a third cross-sectional perspective view of the plug of the present invention. DETAILED DESCRIPTION

[0026] Embodiment: An easy-to-operate plug-in connector includes a plug 1 and a socket 2, wherein the plug 1 can be plugged into the socket 2 to achieve electrical conduction, and is characterized in that: the end of the socket 2 connected to the circuit board is set as the lower end, and a first snap-fit structure is provided on the upper end surface of the socket 2, and a second snap-fit structure is provided on the side wall of the plug 1 facing the socket 2. When the plug 1 is inserted into the socket 2, the second snap-fit structure can be snapped together with the first snap-fit structure. A locking handle 3 is also installed on the plug 1, and the movement of the locking handle 3 can drive the second snap-fit structure to move and disengage from the first snap-fit structure.

[0027] When the plug 1 is connected to the socket 2, the plug post of the plug 1 is inserted into the socket of the socket 2, and the terminal 22 in the socket of the socket 2 is inserted into the clip 15 in the plug post of the plug 1. The terminal 22 of the socket 2 is clamped and connected by the clip 15 of the plug 1. A wire entry hole is formed at the other end of the plug 1. The wire entering the wire entry hole is clamped and connected by the clip 15 inside the plug 1 and the integrally formed square box structure 13. Then, when the plug 1 is connected to the socket 2, the wire and the terminal on the socket 2 are connected to form a conductive loop. When the wire needs to be replaced in the plug 1, it is only necessary to rotate the screw 12 on the plug 1 counterclockwise to drive the square box to move and loosen the wire. When the plug 1 is connected to the socket 2, the second buckle structure on the plug 1 moves together with the plug 1 and is buckled and connected with the first buckle structure on the upper end surface of the socket 2. At this time, the socket 2 and the plug 1 are buckled and connected by the first buckle structure and the second buckle structure. When the plug 1 needs to be unplugged from the socket 2, the first and second latch structures can be automatically locked and unlocked, so that the plug 1 and the socket 2 can be easily unplugged.

[0028] The first snap-in structure is a concave slot structure 211 provided on the upper surface of the socket, and the second snap-in structure is an elastic snap-in structure provided on the side wall of the plug 1 facing the socket 2. The elastic snap-in can be inserted into the concave slot structure 211 on the upper surface of the socket 2 under the action of elastic force. The concave slot structure 211 is stopped on the elastic snap-in surface along the side wall in the direction of pulling out the plug 1 and the socket 2. The movement of the locking handle 3 can drive the elastic snap-in to overcome the elastic force and move out of the concave slot of the socket 2.

[0029] Since the first snap-fit structure is a concave slot structure 211, when the plug 1 is plugged into the socket 2, the elastic snap-fit on the plug 1 will automatically sink into the concave slot structure 211 of the socket 2 under the action of the elastic force, so that the snap-fit connection structure is hidden inside and does not occupy the external space of the plug 1 and socket 2 products. In addition, the first snap-fit structure can also be an elastic snap-fit structure, and the second snap-fit structure is a slot provided on the side wall of the plug 1 facing the socket 2, which can also realize that the snap-fit connection structure is hidden inside the socket 2 and plug 1 products. This is an equivalent replacement structure that can be easily thought of by those skilled in the art based on this application and falls within the scope of protection of this application.

[0030] The elastic clip includes a cantilever 112 integrally formed on the side wall of the plug 1 facing the socket 2, and a barb 111 provided at the end of the cantilever 112. The barb 111 is receivable within the recessed slot of the socket 2 and hooks onto the side wall of the recessed slot facing the plug 1. The elastic clip adopts the barb 111 structure. When the plug 1 is plugged into the socket 2, the barb 111 structure contacts the edge of the socket 2 via the inclined surface, allowing it to be smoothly lifted out of the way. When it enters the recessed slot structure 211 of the socket 2, it automatically snaps into the recessed slot structure 211 of the socket 2 under the elastic action of the cantilever 112 and hooks onto it. The elastic clip adopts this structure and can be integrally formed on the plug 1, making it easy to form. In addition, the elastic clip can also be an elastic sliding structure composed of a sliding pin and an elastic member to achieve plug-in positioning with the upper and lower recessed slot structures 211 of the socket 2. This is an equivalent replacement structure that can be easily thought of by those skilled in the art based on this application and falls within the scope of protection of this application.

[0031] An inclined guide slide 212 is formed on the upper end surface of the socket 2. One end of the bottom surface of the inclined guide slide 212 is aligned with the elastic snap-in structure at the upper end of the plug 1, and the other end of the bottom surface of the inclined guide slide 212 is aligned with the concave slot at the upper end of the socket 2. One end of the bottom surface of the inclined guide slide 212 is higher than the other end, so that the elastic snap-in structure can slide along the bottom surface of the inclined guide slide 212 and eventually slide into the concave slot. The inclined guide slide 212 can guide the sliding direction of the elastic snap-in structure, ensuring that the elastic snap-in structure smoothly enters the concave slot structure 211 of the socket 2 after the plug 1 and the socket 2 are plugged in. At the same time, it prevents the elastic snap-in structure from being elastically deformed by vibration and exiting the concave slot structure 211 on the socket 2 after the plug 1 and the socket 2 are plugged in.

[0032] A cavity structure 11 is formed inside the plug 1, and a first opening for one end of the second snap structure to extend into is formed on the side wall of the cavity structure 11 facing the socket 2, and a slope structure 118 is provided on one end of the second snap structure, which has a set angle with its tripping movement direction. A second opening is also provided on the side wall of the cavity structure 11, and the locking handle 3 can be slid a set distance and inserted into the cavity structure 11, and the sliding direction of the locking handle 3 has an angle with the inclination direction of the slope structure 118 at one end of the second snap structure. One end of the locking handle 3 is in close contact with the slope structure 118 on the second snap structure, and the other end of the locking handle 3 extends out of the outside of the plug 1 through the second opening on the side wall of the cavity structure 11.

[0033] When unlocking the second buckle, it is only necessary to press the lock handle 3. The lock handle 3 slides in the cavity structure 11 of the plug 1 under pressure. One end of the lock handle 3 is tightly against the inclined structure 118 at one end of the second buckle structure, and the second buckle structure is pried up to disengage the second buckle structure from the first buckle structure. The inclined structure 118 on the second buckle structure is preferably formed at the root of the cantilever 112. The root of the cantilever 112 is fixedly connected to the first opening side wall of the cavity structure 11 of the plug 1 through two spaced-apart connecting pieces 113. A channel 114 is formed between the two connecting pieces for one end of the lock handle 3 to extend into. The inclined structure 118 of the second buckle structure is located at the end of the channel. One end of the lock handle 3 slides into the cantilever 112 along the extension direction of the cantilever 112 of the second buckle structure. The lock handle 3 is fixed to the outer wall of the plug 11 and is fixed on the outer wall of the plug 11. The lock handle 3 is fixed on the outer wall of the plug 11 and is fixed on the outer wall of the plug 11. When the lock handle 3 is fixed on the outer wall of the plug 11, the lock handle 3 is fixed on the outer wall of the plug 11. When the lock handle 3 is fixed on the outer wall of the plug 11, the lock handle 3 is fixed on the outer wall of the plug 11. When the lock handle 3 is fixed on the outer wall of the plug 11, the lock handle 3 is fixed on the outer wall of the plug 11. When the lock handle 3 is fixed on the outer wall of the plug 11, the lock handle 3 is fixed on the outer wall of the plug 11

[0034] The locking handle 3 includes a connecting plate 33, a pressing surface 31, a positioning shaft 34, a reset member 35 and a top block 36. The two opposite side walls in the cavity structure 11 of the plug 1 are respectively provided with a long strip slide groove 117 with a set angle with the up and down direction. The connecting plate 33 is accommodated in the cavity structure 11. The top block 36 is provided at one end of the connecting plate 33. The pressing surface 31 is fixedly provided at the other end of the connecting plate 33. The pressing surface 31 is located on the outside of the plug 1. The positioning shaft 34 is fixedly installed on the connecting plate 3 3, both ends of the positioning shaft 34 are slidably inserted into the elongated sliding groove 117 respectively, and the pressing surface 31 at the other end of the connecting plate 33 is pressed to drive the positioning shaft 34 to slide in the elongated sliding groove 117 through the connecting plate 33, and the top block 36 moves together with the connecting plate 33 to press against the surface of the inclined structure 118 at one end of the second snap structure, and the reset member 35 can provide the connecting plate 33 with an elastic reset force to keep the top block 36 from being separated from the inclined structure 118 at one end of the second snap structure.

[0035] The connecting plate 33 serves as the main body of the locking handle 3, and the pressing surface 31 is used for the pressing operation. The surface of the pressing surface 31 is preferably provided with convex and concave anti-slip ribs 32. When the pressing surface 31 is pressed, the connecting plate 33 slides in the cavity structure 11 of the plug 1, and the positioning shaft 34 slides in the long strip slide groove 117 on the inner wall of the cavity structure 11, thereby limiting the sliding direction and sliding distance of the connecting plate 33. When the top block 36 slides synchronously at one end of the connecting plate 33, it presses the inclined surface structure 118 at one end of the second snap structure, forcing the second snap structure to disengage from the first snap structure. Directional movement, when the pressing surface 31 is released, the connecting plate 33 is automatically reset under the elastic force of the reset member 35, so that the second snap structure automatically returns to its original position, ensuring that the plug 1 and the socket 2 are automatically snapped together after being plugged in. The lock handle 3 has few parts and components, is easy to assemble, easy to operate, and has low manufacturing cost. In addition, the lock handle 3 can also adopt a bolt structure, a bouncing button structure, a sliding handle structure, etc., as long as it can drive the second snap structure to move and disengage. This is an equivalent replacement structure that a person skilled in the art can easily think of based on the present application, and it belongs to the protection scope of the present application.

[0036] The connecting plate 33 is an L-shaped structure, and the long strip slide grooves 117 on the two opposite side walls of the cavity structure 11 of the plug 1 extend in an inclined direction with an acute angle to the horizontal direction. The two positioning shafts 34 are symmetrically fixed on both sides of the corner of the L-shaped structure of the connecting plate 33. The reset member 35 is a cantilever 112-shaped arc-shaped spring structure integrally formed on the side wall of the connecting plate 33. The end side wall of the reset member 35 is tightly attached to the lower side surface of the cavity structure 11 of the plug 1, and the other end of the connecting plate 33 extends from the second opening at the upper end of the box structure of the plug 1. The pressing surface 31 on the other end of the connecting plate 33 stops at the outer side of the upper end surface of the plug 1.

[0037] By designing the connecting plate 33 into an L-shaped structure so that one end and the other end extend in different directions, the pressing surface 31 can be designed on the upper end surface of the plug 1, which can make full use of the gap in the ring column structure extending from the upper end of the upper end surface of the plug 1 for accommodating the screw, so that the pressing surface 31 does not occupy additional space in the plug 1 and does not increase the external dimensions of the plug 1. When the pressing surface 31 is subjected to pressure in the up and down directions, since the long strip slide groove 117 on the inner side wall of the cavity structure 11 of the plug 1 is an inclined groove, the connecting plate 33 will slide along the inclined direction, thereby causing the top at one end of the connecting plate 33 to slide. Block 36 slides horizontally. In order to prevent one end of the connecting plate 33 from sliding and interfering in the cavity structure 11 of the plug 1, it is best to design the lower surface of the one end of the connecting plate 33 that contacts the cavity structure 11 into an arc-shaped contact surface 39. At the same time, the lower side wall of the cavity structure 11 contacts the contact surface of one end of the connecting plate 33 through a smooth sliding surface 119, which is beneficial to reduce friction and prevent jamming. It is designed to lift up the cantilever 112 of the second snap structure extending horizontally on the plug 1. This structure makes full use of the gaps between various structural parts on the plug 1 for design without increasing the external dimensions of the plug 1.

[0038] The connecting plate 33 is also provided with a sidewall anti-slip protrusion 37, which abuts against the inner surface of the sidewall of the second opening of the cavity structure 11 of the plug 1. The anti-slip protrusion 37 limits the connecting plate 33 during its sliding movement, preventing it from falling out of the cavity structure 11 of the plug 1.

[0039] Anti-displacement grooves 116 are formed on both side walls of the second opening of the cavity structure 11 of the plug 1, and anti-displacement protrusions 38 are provided on both side walls of the other end of the connecting plate 33. The anti-displacement protrusions 38 can be inserted into the anti-displacement grooves 116. When the pressing surface 31 contacts the upper surface of the plug 1, the anti-displacement protrusions 38 engage with the anti-displacement grooves 116. The force used to remove the plug 1 is transferred to the plug body 1 instead of acting solely on the locking handle 3, thus preventing the locking handle 3 from being disengaged.

[0040] The plug 1 is located on the lower side of the cavity structure 11 and is further provided with a bolt receiving hole 120 extending along the direction of plugging between the plug 1 and the socket 2. An auxiliary screw 16 is inserted into the bolt receiving hole 120 so as to be rotatable in the circumferential direction and slidable in the axial direction by a set distance. The auxiliary screw 16 extends out from the side of the plug 1 facing the socket 2 by a set distance. A connecting threaded hole is provided on the side wall of the socket 2 facing the plug 1. The auxiliary screw 16 can be movably screwed into the connecting threaded hole. When the plug 1 and the socket 2 are plugged in, on the one hand, the first snap-fit structure is engaged with the second snap-fit structure, and at the same time, the auxiliary screw 16 can be screwed into the connecting threaded hole in the socket 2 to achieve double locking. The connecting threaded hole in the socket 2 can be formed by embedding a nut 23 in the light hole. The above structure is located below the cavity structure 11 of the plug 1, making full use of the internal space of the plug 1 and the socket 2 without increasing the external dimensions of the plug 1 and the socket 2.

Claims

1. An easy-to-operate plug-in connector, comprising a plug (1) and a socket (2), wherein the plug can be plugged into the socket to achieve electrical conduction, and is characterized in that: The end where the socket is connected to the circuit board is the lower end, a first snap-fit structure is provided on the upper end surface of the socket, a second snap-fit structure is provided on the side wall of the plug facing the socket, when the plug is inserted into the socket, the second snap-fit structure can be snap-fitted and connected with the first snap-fit structure, a locking handle (3) is also installed on the plug, the movement of the locking handle can drive the second snap-fit structure to move and disengage from the first snap-fit structure, a cavity structure (11) is formed inside the plug, the locking handle includes a connecting plate (33), a pressing surface (31), a positioning shaft (34), a reset member (35) and a top block (36), and a long strip-shaped sliding groove with a set angle to the upper and lower directions is respectively provided on two opposite side walls in the plug cavity structure. The connecting plate is accommodated in the cavity structure, the top block is arranged at one end of the connecting plate, the pressing surface is fixedly arranged at the other end of the connecting plate, the pressing surface is located on the outside of the plug, the positioning shaft is fixedly installed on the connecting plate, and the two ends of the positioning shaft can be slidably inserted into the elongated slide groove (117), and the pressing surface at the other end of the connecting plate can be pressed to drive the positioning shaft to slide in the elongated slide groove through the connecting plate, and the top block moves with the connecting plate to press the inclined surface of one end of the second snap structure, and the reset member can provide the connecting plate with an elastic reset force to keep the top block from being separated from the inclined surface of one end of the second snap structure. The reset member is a cantilevered arc-shaped spring structure integrally formed on the side wall of the connecting plate, and the side wall of the reset member end is tightly attached to the lower side of the cavity structure of the plug.

2. The easy-to-operate plug-in connector according to claim 1, characterized in that: The first snap-in structure is a concave snap-in groove structure (211) provided on the upper surface of the socket, and the second snap-in structure is an elastic snap-in structure provided on the side wall of the plug facing the socket. The elastic snap-in can be inserted into the concave snap-in groove structure on the upper surface of the socket under the action of elastic force. The concave snap-in groove structure is stopped on the elastic snap-in surface along the side wall in the direction of pulling out the plug and the socket. The movement of the lock handle can drive the elastic snap-in to overcome the elastic force and move out of the concave snap-in groove of the socket.

3. The easy-to-operate plug-in connector according to claim 2, characterized in that: The elastic buckle comprises a cantilever (112) integrally formed on the side wall of the plug facing the socket and a barb (111) provided at the end of the cantilever, wherein the barb can be accommodated in the concave card slot of the socket and hooked with the side wall of the concave card slot facing the plug.

4. The easy-to-operate plug connector according to claim 3, characterized in that: An inclined guide slide (212) is formed on the upper end surface of the socket, one end of the bottom surface of the inclined guide slide is opposite to the elastic buckle at the upper end of the plug, and the other end of the bottom surface of the inclined guide slide is opposite to the concave card slot at the upper end of the socket, and the height of one end of the bottom surface of the inclined guide slide is higher than the height of the other end, and the elastic buckle can slide along the bottom surface of the inclined guide slide and finally slide into the concave card slot.

5. The easy-to-operate plug connector according to claim 1, characterized in that: A first opening is formed on the side wall of the cavity structure facing the socket for one end of the second snap structure to extend into, and an inclined surface structure (118) is provided on one end of the second snap structure at a set angle to its tripping movement direction. A second opening is also provided on the side wall of the cavity structure. The lock handle can be inserted into the cavity structure by sliding a set distance, and the sliding direction of the lock handle has an angle with the inclination direction of the inclined surface structure at one end of the second snap structure. One end of the lock handle is in close contact with the inclined surface structure on the second snap structure, and the other end of the lock handle extends out of the outside of the plug through the second opening on the side wall of the cavity structure.

6. The easy-to-operate plug connector according to claim 1, characterized in that: The connecting plate has an L-shaped structure, and the long strip slide grooves on the two opposite side walls of the cavity structure of the plug extend along an inclined direction with an acute angle to the horizontal direction. The two positioning axes are symmetrically fixed on both sides of the corner of the L-shaped structure of the connecting plate. The other end of the connecting plate extends from the second opening at the upper end of the box structure of the plug, and the pressing surface on the other end of the connecting plate stops at the outer side of the upper end surface of the plug.

7. The easy-to-operate plug connector according to claim 1, characterized in that: The side wall of the connecting plate is also provided with an anti-slip protrusion structure (37), and the anti-slip protrusion structure stops at the inner surface of the side wall of the second opening of the cavity structure of the plug.

8. The easy-to-operate plug connector according to claim 1, characterized in that: Anti-displacement grooves (116) are respectively formed on both side walls of the second opening of the cavity structure of the plug, and anti-displacement protrusions (38) are respectively provided on both side walls of the other end of the connecting plate. The anti-displacement protrusions can be inserted into the anti-displacement grooves.

9. The easy-to-operate plug connector according to claim 1, characterized in that: The plug is located on the lower side of the cavity structure and is further provided with a bolt receiving hole (120) extending along the plug-in connection direction of the plug and the socket. An auxiliary screw (16) is inserted into the bolt receiving hole so as to be rotatable in the circumferential direction and slidable in the axial direction by a set distance. The auxiliary screw extends out of the plug toward a side of the socket by a set distance. A connecting threaded hole is provided on a side wall of the socket facing the plug, and the auxiliary screw can be movably screwed into the connecting threaded hole.

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