阅读说明：本技术 小型防自解锁的电连接器插头 (Small-sized self-unlocking-preventing electric connector plug ) 是由 肖翔 钱剑钊 王立相 于 2019-10-25 设计创作，主要内容包括：小型防自解锁的电连接器插头,包括基座,所述基座的外部连接有上盖、前盖以及下盖；所述基座的内部转动连接锁紧机构,所述锁紧机构包括锁紧片、限位板以及扭簧,所述限位板与所述基座转动连接,所述限位板的一端设有所述锁紧片,所述锁紧片安放于所述上盖的顶部；所述锁紧片为硬质结构；所述限位板的另一端转动连接牵引机构,所述牵引机构滑动装配于所述上盖的表面,所述牵引机构用以带动锁紧片转动解锁；本发明牵引机构水平移动用以带动锁紧机构的一端转动,进而带动锁紧片转动实现解锁,可实现需要从顶部按压锁紧片解锁,节省了操作空间,在单个设备上可以密集的排布多个接口。(The small-sized self-unlocking prevention electric connector plug comprises a base, wherein an upper cover, a front cover and a lower cover are connected to the outside of the base; the interior of the base is rotatably connected with a locking mechanism, the locking mechanism comprises a locking sheet, a limiting plate and a torsion spring, the limiting plate is rotatably connected with the base, the locking sheet is arranged at one end of the limiting plate, and the locking sheet is arranged at the top of the upper cover; the locking sheet is of a hard structure; the other end of the limiting plate is rotatably connected with a traction mechanism, the traction mechanism is assembled on the surface of the upper cover in a sliding mode, and the traction mechanism is used for driving the locking sheet to rotate and unlock; the traction mechanism moves horizontally to drive one end of the locking mechanism to rotate, further drives the locking sheet to rotate to realize unlocking, can realize unlocking by pressing the locking sheet from the top, saves operation space, and can densely arrange a plurality of interfaces on a single device.)

1. The small-sized self-unlocking prevention electric connector plug comprises a base, wherein an upper cover, a front cover and a lower cover are connected to the outside of the base; the method is characterized in that: the interior of the base is rotatably connected with a locking mechanism, the locking mechanism comprises a locking sheet, a limiting plate and a torsion spring, the limiting plate is rotatably connected with the base, the locking sheet is arranged at one end of the limiting plate, and the locking sheet is arranged at the top of the upper cover; the locking sheet is of a hard structure;

the other end of the limiting plate is rotatably connected with a traction mechanism, the traction mechanism is assembled on the surface of the upper cover in a sliding mode, and the traction mechanism is used for driving the locking sheet to rotate and unlock; a torsional spring is arranged at the rotary connection position of the limiting plate and the base and is used for driving the locking piece to rotate and reset; the distance between the traction mechanism and the rotating center of the locking mechanism is smaller than the distance between the locking sheet and the rotating center of the locking mechanism.

2. A miniature self-unlocking resistant electrical connector plug as defined in claim 1, wherein: traction mechanism includes handle, deflector and connecting plate, structure as an organic whole between handle, deflector and the connecting plate, handle sliding connection in the surface of upper cover, the handle with mutual parallel arrangement between the upper cover, the handle is close to locking mechanism's one end downward sloping extends there the deflector, the deflector is soft structure, the deflector is used for driving connecting plate upward movement, the surface of upper cover is close to the side of deflector is the support limit, support the limit contradict in the inner wall top of deflector, the bottom of deflector extends there is the connecting plate, the connecting plate with the limiting plate rotates to be connected.

3. A miniature self-unlocking preventing electrical connector plug as set forth in claim 2, wherein: locking mechanism still includes locating plate, actuating lever and round pin axle, the perpendicular symmetry of locating plate is located the bottom surface of limiting plate, open the inside of locating plate has the second to change the hole, the inside in second commentaries on classics hole is run through there is the round pin axle, the round pin axle run through in the torsional spring, the second change the hole the round pin axle and the torsional spring all is located same axis department, the actuating lever is located the tip of limiting plate, the actuating lever is the type of falling L, the bottom symmetry of actuating lever is equipped with the rotary column, the inside first hole of changeing of having seted up of connecting plate, the rotary column stretch into in the first rotary column.

4. A miniature self-unlocking resistant electrical connector plug as defined in claim 3, wherein: the surface of the upper cover is provided with a limiting sliding block, the handle is provided with a sliding groove for the limiting sliding block to penetrate through, the part of the limiting sliding block extending out of the sliding groove is connected with a pressing block, the pressing block and the limiting sliding block are in a cross shape, and the pressing block is attached to the surface of the handle.

5. The miniature self-unlocking resistant electrical connector plug of claim 4, wherein: the locking piece comprises an inclined plane section and a bending section, the inclined plane section is inclined upwards, the bending section is arranged at the top end of the inclined plane section and is of a cambered surface structure with a downward chamfer, and a groove in the middle of the inclined plane section is connected with the limiting plate.

6. The miniature self-unlocking resistant electrical connector plug of claim 5, wherein: the surface of protecgulum has seted up and has accomodate the groove, accomodate the groove and arrange in the bottom of stay, accomodate the groove and be used for accomodating the inclined plane section.

7. A miniature self-unlocking preventing electrical connector plug as claimed in any of claims 1-5, wherein: one end of the lower cover is rotatably connected with the base, the lower cover rotates clockwise, and the other end of the lower cover is connected with the base in a clamping mode.

Technical Field

The invention belongs to the technical field of communication connectors, and particularly relates to a small-sized self-unlocking-preventing electric connector plug.

Background

The connector is mainly applied to connection between engineering equipment and is generally connected with a socket fixed at an opening of a cabinet of the complete equipment, so that the complete equipment is connected with an external cable. The plug end is generally in a free state, the tail part is connected with a cable, and the transmission of signals or current between different devices is realized through the butt joint of a plug and a socket. At present, different interfaces are adopted for signals and current, so that the current and signal sharing interface and the interface densification are main research and development trends;

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a small-sized self-unlocking-preventing electric connector plug, and the specific technical scheme is as follows:

the small-sized self-unlocking prevention electric connector plug comprises a base, wherein an upper cover, a front cover and a lower cover are connected to the outside of the base; the interior of the base is rotatably connected with a locking mechanism, the locking mechanism comprises a locking sheet, a limiting plate and a torsion spring, the limiting plate is rotatably connected with the base, the locking sheet is arranged at one end of the limiting plate, and the locking sheet is arranged at the top of the upper cover; the locking sheet is of a hard structure;

the other end of the limiting plate is rotatably connected with a traction mechanism, the traction mechanism is assembled on the surface of the upper cover in a sliding mode, and the traction mechanism is used for driving the locking sheet to rotate and unlock; a torsional spring is arranged at the rotary connection position of the limiting plate and the base and is used for driving the locking piece to rotate and reset; the distance between the traction mechanism and the rotating center of the locking mechanism is smaller than the distance between the locking sheet and the rotating center of the locking mechanism.

Further, drive mechanism includes handle, deflector and connecting plate, structure as an organic whole between handle, deflector and the connecting plate, handle sliding connection in the surface of upper cover, the handle with mutual parallel arrangement between the upper cover, the handle is close to locking mechanism's one end downward sloping extends there the deflector, the deflector is soft structure, the deflector is used for driving connecting plate upward movement, the surface of upper cover is close to the side of deflector is the support limit, the support limit contradict in the inner wall top of deflector, the bottom of deflector extends there is the connecting plate, the connecting plate with the limiting plate rotates to be connected.

Further, locking mechanism still includes locating plate, actuating lever and round pin axle, the perpendicular symmetry of locating plate is located the bottom surface of limiting plate, open the inside of locating plate has the second to change the hole, the round pin axle has been run through to the inside in second commentaries on classics hole, the round pin axle run through in the torsional spring, the second change the hole the round pin axle and the torsional spring all is located same axis department, the actuating lever is located the tip of limiting plate, the actuating lever is the type of falling L, the bottom symmetry of actuating lever is equipped with the rotary column, first commentaries on classics hole has been seted up to the connecting plate inside, the rotary column stretch into in first commentaries on classics hole.

Furthermore, a limiting sliding block is arranged on the surface of the upper cover, a sliding groove for the limiting sliding block to penetrate through is formed in the handle, a pressing block is connected to the part, extending out of the sliding groove, of the limiting sliding block, a cross shape is formed between the pressing block and the limiting sliding block, and the pressing block is attached to the surface of the handle.

Furthermore, the surface of the handle is provided with a stop block, the stop block and the pressing block are arranged oppositely at intervals, and the stop block is arranged on one side, close to the guide plate, of the pressing block.

Further, the stay includes inclined plane section and bending segment, the slope of inclined plane section upwards sets up, the top of inclined plane section is equipped with the bending segment, the bending segment is the cambered surface structure of chamfer downwards, the middle part groove of inclined plane section with limiting plate connection.

Further, the surface of protecgulum has seted up and has accomodate the groove, accomodate the groove and arrange in the bottom of stay, accomodate the groove and be used for accomodating the inclined plane section.

Further, one end of the lower cover is rotatably connected with the base, the lower cover rotates clockwise, and the other end of the lower cover is connected with the base in a clamping mode.

The invention has the beneficial effects that:

1. the traction mechanism moves horizontally to drive one end of the locking mechanism to rotate, so that the locking sheet is driven to rotate to realize unlocking, the locking sheet is required to be pressed from the top to realize unlocking, the operation space is saved, and a plurality of interfaces can be densely distributed on a single device;

2. the rotation control mode can utilize the lever principle, so that the traction mechanism can control the locking sheet more easily and conveniently, the traction mechanism is close to the rotation center, the locking sheet is far away from the rotation center, and the displacement of the locking sheet is far larger than that of the traction mechanism under the condition that the traction mechanism is in a small movement amplitude, so that the movement amplitude of the traction mechanism is reduced to the maximum extent, and the operation space is further reduced;

3. the hard locking piece is adopted, the service life of the locking piece can be prolonged, the locking strength is guaranteed, self-unlocking is prevented, and when the locking device is maintained, the torsion spring and the locking piece are separated, so that the torsion spring is only required to be replaced, and the maintenance cost is greatly reduced.

Drawings

Fig. 1 shows an overall top view schematic of a small self-unlocking resistant electrical connector plug of the present invention;

fig. 2 is a schematic view of the entire bottom view of the small self-unlocking prevention electrical connector plug of the present invention;

FIG. 3 shows a schematic view of the locking mechanism of the present invention;

FIG. 4 is a schematic view of the locking mechanism and pulling mechanism connection of the present invention;

FIG. 5 is a schematic bottom cross-sectional view of the locking mechanism and pulling mechanism connection of the present invention;

FIG. 6 shows a schematic top cross-sectional view of the handle of the present invention;

fig. 7 shows a schematic view of the overall explosion structure of the electrical connector plug of the present invention;

FIG. 8 is a schematic view of the plug of the present invention in a first state;

FIG. 9 is a schematic view of the plug of the present invention in a second state;

FIG. 10 is a schematic view of a third state of the plug and connector connection of the present invention;

FIG. 11 is a fourth state of the plug and connector connection of the present invention;

FIG. 12 shows a schematic view of the torsion spring configuration of the present invention;

shown in the figure: 1. the device comprises a base, 2, a traction mechanism, 21, a handle, 211, a sliding groove, 22, a guide plate, 23, a connecting plate, 231, a first rotary hole, 3, a locking mechanism, 31, a locking piece, 311, an inclined plane section, 312, a bending section, 32, a limiting plate, 33, a positioning plate, 331, a second rotary hole, 34, a driving rod, 341, a rotary column, 35, a torsion spring, 36, a pin shaft, 4, an upper cover, 41, a limiting slide block, 42, a supporting edge, 5, a front cover, 51, a containing groove, 6, a lower cover, 7, an electrode plate, 71, a supporting piece, 8, a square terminal, 9 and an adjusting screw.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The small-sized self-unlocking prevention electric connector plug comprises a base 1, wherein an upper cover 4, a front cover 5 and a lower cover 6 are connected to the outside of the base 1; the interior of the base 1 is rotatably connected with a locking mechanism 3, the locking mechanism 3 comprises a locking sheet 31, a limiting plate 32 and a torsion spring 35, the limiting plate 32 is rotatably connected with the base 1, the locking sheet 31 is arranged at one end of the limiting plate 32, and the locking sheet 31 is arranged at the top of the upper cover 4; the locking piece 31 is used as a locking structure of the plug and the joint;

the locking sheet 31 is of a hard structure; the locking mechanism is made of hard materials, when the locking mechanism and the locking plate are clamped, the locking plate 31 cannot be opened easily by external force, the service life of the locking plate 31 is longer, the locking effect is better, the locking process of the locking plate 31 is realized only through the torsion spring 35, the extrusion frequency and the extrusion force of the torsion spring 35 are smaller, the service life is longer, only the torsion spring needs to be replaced during replacement, the cost is low, and the operation is simple;

the other end of the limiting plate 32 is rotatably connected with a traction mechanism 2, the traction mechanism 2 is slidably assembled on the surface of the upper cover 4, and the traction mechanism 2 is used for driving the locking sheet 31 to rotate and unlock; the limiting plate 32 is driven to rotate by pulling the external traction mechanism 2, so that the locking sheet 31 rotates downwards and is compressed, the plug is separated from the connector, the operation is simple and convenient, the operation space does not need to be arranged at the joint, the space is saved, and a plurality of connectors can be densely arranged on a single device;

the distance between the traction mechanism 2 and the rotation center of the locking mechanism 3 is smaller than the distance between the locking sheet 31 and the rotation center of the locking mechanism 3; the locking sheet 31 is driven to move in a rotating mode, the traction mechanism 2 is close to the rotation center, the locking sheet 31 is far away from the rotation center, the displacement of the locking sheet 31 is large under the condition that the traction mechanism 2 is in a small moving amplitude by utilizing the lever principle, the separation speed is further accelerated, the operation difficulty is reduced, and the operation space can be further reduced;

the limiting plate 32 with the torsional spring 35 is installed to the rotation junction of base 1, torsional spring 35 is used for driving the stay 31 rotates and resets.

As an improvement of the above technical solution, the traction mechanism 2 includes a handle 21, a guide plate 22 and a connecting plate 23, the handle 21, the guide plate 22 and the connecting plate 23 are integrated, the handle 21 is slidably connected to the surface of the upper cover 4, and the handle 21 and the upper cover 4 are arranged in parallel to each other to realize that the handle 21 can be slidably operated along the upper cover 4;

one end of the handle 21 close to the locking mechanism 3 is provided with the guide plate 22 in a downward inclined and extending manner, the guide plate 22 is used for driving the connecting plate 23 to move downwards, and the guide plate 22 is in a downward inclined and extending manner so as to ensure that the height of the guide plate 22 is gradually reduced; the guide plate is of a soft structure, the soft structure is used for realizing that the guide plate 22 can move upwards when being stressed, the guide plate 22 is attached to the surface of the upper cover 4, the connecting plate 2323 is driven to move upwards when the handle 21 is pulled, the locking sheet 31 is driven to rotate anticlockwise, and the torsion spring 35 is used for playing a driving role;

the side edge of the surface of the upper cover 4 close to the guide plate 22 is a supporting edge 42, the supporting edge 42 abuts against the top end of the inner wall of the guide plate 22, the supporting edge 42 is used for driving the guide plate 22 to move towards the upper cover 4 when the handle 21 moves, and the supporting edge 42 supports the lower part of the moving guide plate 22 due to the inclined surface of the guide plate 22, so that the guide plate 22 is lifted upwards and deformed;

a connecting plate 23 extends from the bottom end of the guide plate 22, and the connecting plate 23 is rotatably connected with the limiting plate 32; the connecting plate 23 is used to realize that when the guide plate 22 moves upwards, it will also move upwards, and finally, the limiting plate 32 is driven to rotate upwards and anticlockwise.

As an improvement of the above technical solution, the locking mechanism 3 further includes a positioning plate 33, a driving rod 34 and a pin shaft 36, the positioning plate 33 is vertically and symmetrically disposed on the bottom surface of the limiting plate 32, a second rotating hole 331 is formed inside the positioning plate 33, the pin shaft 36 penetrates through the second rotating hole 331, the pin shaft 36 penetrates through the torsion spring 35, the second rotating hole 331, the pin shaft 36 and the torsion spring 35 are all located on the same axis, and the pin shaft 36, the torsion spring 35 and the positioning plate 33 form a stable rotational reset structure; the driving rod 34 is in an inverted L shape;

the driving rod 34 is arranged at the end of the limiting plate 32, the bottom end of the driving rod 34 is symmetrically provided with rotating columns 341, a first rotating hole 231 is formed in the connecting plate 23, and the rotating columns 341 extend into the first rotating hole 231; the driving rod 34 is used for driving the limit plate 32 to rotate, and the driving rod 34 can receive the force applied by the connecting plate 23.

As an improvement of the above technical solution, a limiting slider 41 is disposed on the surface of the upper cover 4, a sliding slot 211 through which the limiting slider 41 penetrates is disposed on the handle 21, a pressing block 411 is connected to a portion of the limiting slider 41 extending out of the sliding slot 211, the pressing block 411 and the limiting slider 41 are cross-shaped, and the pressing block 411 is attached to the surface of the handle 21; the sliding groove 211 is matched with the limiting sliding block 41 to realize horizontal movement without left-right deviation, the pressing block 411 is arranged to ensure that the handle 21 cannot tilt upwards and can only move horizontally to ensure the precision of movement control, the required space of the handle in the operation can be reduced due to horizontal movement, and the operation is more convenient.

A stop block 212 is arranged on the surface of the handle 21, the stop block 212 and the pressing block 411 are arranged oppositely at intervals, and the stop block 212 is arranged on one side of the pressing block 411 close to the guide plate 22; the stopper 212 is used for limiting the distance that the handle 21 moved, and when the handle 21 moved to required position, the stopper 212 just can contradict with the briquetting 411, thereby makes the handle 21 can't move again, and the stay 31 is just in time just unlocked, thereby realizes realizing the unblock under minimum amplitude of movement, guarantees the removal precision, avoids moving the range too big, causes each to rotate the structure deformation volume that resets too big, and the effect that resets descends.

As an improvement of the above technical solution, the locking piece 31 includes an inclined section 311 and a bent section 312, the inclined section 312 is arranged obliquely upward, the bent section 312 is arranged at the top end of the inclined section 311, the bent section 312 is of a downward-chamfered arc-shaped structure, and a groove in the middle of the inclined section 311 is connected with the limiting plate 32; the inclined section 311 is used to make the plug insertion process more convenient and the contact is smoother, the bending section 312 is used to make the deformation of the locking piece under pressure more simple and the contact is smoother, and the bending section 312 is also the locking part of the locking piece.

As an improvement of the above technical solution, a receiving groove 51 is formed on the surface of the front cover 5, the receiving groove 51 is disposed at the bottom of the locking piece 31, and the receiving groove 51 is used for receiving the inclined surface section 311; the accommodating groove 51 is used for realizing that when the locking sheet 31 rotates downwards, the inclined surface section 311 can be rotated into the accommodating groove 51, so that the locking sheet 31 is prevented from being abutted by the surface of the front cover 5 in the rotating process, and the locking sheet 31 is ensured not to be forced upwards any more.

As an improvement of the above technical solution, one end of the lower cover 6 is rotatably connected with the base 1, the lower cover 6 rotates clockwise, and the other end of the lower cover 6 is connected with the base 1 in a clamping manner; open through rotatory mode, convenient operation, if the protective cover does not close during and the operation, can direct observation, it is better than traditional push-and-pull type's protective cover security.

As shown in fig. 7, fig. 7 is a schematic view showing an overall exploded structure of the plug of the electrical connector of the present invention, as shown in fig. 7;

the plug consists of two screws 9, two square terminals 8, a support sheet 71 (a positive support sheet, a negative support sheet, an electrode sheet 7 (a positive sheet and a negative sheet), a base 1, a front cover 5, a pin shaft 36, a torsion spring 35, a locking mechanism 3, a traction mechanism 2, an upper cover 4 and a lower cover 6, wherein the traction mechanism is moved from the rear;

the positive and negative pole pieces are wave-shaped, and the head parts of the positive and negative pole pieces are respectively provided with a flow dividing needle; the torsion spring is placed in the bending limit of the locking mechanism;

the base is provided with symmetrical cylindrical pins, the lower cover is provided with symmetrical round holes, and the lower cover rotates on the base;

connecting two screws with two square terminals through threads; respectively enabling the elastic sheets and the limiting hooks of the two supporting sheets to penetrate through the limiting hole of the positive plate and the limiting hole of the negative plate; after the above, the two support sheets, the positive plate and the negative plate penetrate through the square holes of the square terminals;

after the assembly is finished, the assembly is carried out with the base, the contact head of the positive plate and the contact head of the negative plate are placed in the rectangular groove of the base, the square terminal is placed in the square groove of the base, the screw is placed in the limiting step of the base, and the limiting step is used for preventing the screw from falling out; fixing the square hole of the front cover and the limiting block of the base, and pressing the heads of the positive plate and the negative plate by the boss of the front cover to fix the positive plate and the negative plate; the protrusions on the two sides of the locking mechanism penetrate through the round holes on the two sides of the traction mechanism, the torsion springs are placed in the bending limit positions on the two sides of the locking mechanism and are placed on the base together, the round hole of the base, the round hole of the locking mechanism and the pin shaft center of the torsion springs are kept concentric, and the pin shaft penetrates through the round hole of the base, the round hole of the locking mechanism and the pin shaft center of the torsion springs to fix the parts on the base; at the moment, the square blocks on the two sides of the locking mechanism are placed on the boss of the base, and the locking mechanism keeps a balanced state under the action of the torsion spring and the boss of the base.

Fixing the square hole of the upper cover and the boss of the base, wherein the elastic sheet of the support sheet is positioned in the square groove of the upper cover, the square terminal is positioned in the square groove of the upper cover, and the positive plate and the negative plate are fixed; the traction mechanism passes through the chute of the upper cover and the cross boss of the upper cover to enter the groove below the boss.

The round hole of the lower cover is fixed on the cylindrical pin of the base, the lower cover can rotate at the moment, the trapezoidal boss crosses the highest point of the elastic buckle of the base, the lower cover is fixed after the elastic buckle rebounds, and the whole assembly is completed at the moment.

As shown in fig. 8, fig. 8 is a schematic structural view illustrating a first state of the plug and the connector of the present invention;

at the moment, the plug and the joint are in an unassembled state, the upper part of the joint is provided with a locking hole for embedding the locking sheet 31, and the inner height of the plug is smaller than the height of the locking sheet 31; at this time, the torsion spring 35 is in a relaxed state, the limiting plate 32 and the surface of the upper cover 4 are arranged in parallel at intervals, the supporting edge 42 abuts against the uppermost end of the right side of the guide plate 22, and the guide plate 22 is arranged obliquely upwards from left to right;

fig. 9 is a schematic structural view showing a second state of the plug and the connector of the present invention;

when inserting, the plug enters into the joint, at male in-process, because the height that connects is less, the inside top surface that connects can contact and press inclined plane section 311 motion with the inclined plane section 311 of stay 31, inclined plane section 311 receives the extrusion of connecting the inner wall and rotates downwards and enters into and accomodates the groove 51, stay 31 rotates downwards and drives limiting plate 32 and rotate round pin axle 36, torsional spring 35 is compressed, the one end at actuating lever 34 upwards rotates, and then make rotary column 341 drive connecting plate 23 upwards move, deflector 22 upwards takes place deformation.

Fig. 10 is a schematic structural view showing a third state of connection of the plug and the connector of the present invention;

when the locking sheet 31 moves to the locking hole below, under the drive of the torsion spring 35, the locking sheet 31 integrally rotates upwards to reset, the guide plate 22 moves downwards to reset, the bending section 312 of the locking sheet 31 is clamped into the locking hole, and therefore the plug is locked and limited, the electrode plate is contacted completely, and the plug cannot move any more.

As shown in fig. 11, fig. 11 is a structural diagram illustrating a fourth state of the plug and the connector of the present invention;

when the plug and the joint need to be separated, the handle 21 is pulled rightwards, and the limiting sliding block 41 and the pressing block 411 ensure that the handle 21 can only horizontally move; since the diameter of the first rotating hole 231 is larger than that of the rotating column 341, the rotating column 341 has a certain rotating movement distance in the first rotating hole 231; the handle can drive the guide plate 22 to move rightwards while moving, the guide plate 22 drives the connecting plate 23 to move, and because the height of the guide plate 22 is smaller than that of the supporting edge 42, the supporting edge 42 can jack up the guide plate 22 upwards, so that the guide plate 22 moves upwards, the guide plate 22 drives the connecting plate 23 to move upwards, the connecting plate 23 applies an upward force to the rotating column 341, the rotating column 341 can rotate anticlockwise under the constraint of the pin shaft 36, and the rotating process of the rotating column 341 occurs in the first rotating hole 231;

the rotating column 341 drives the driving rod 34 to rotate counterclockwise, and further drives the locking piece 31 to rotate downward through the limiting plate 32, and the torsion spring 35 is compressed; when the pressing block 411 is abutted to the stopper 212, the guide plate 22 cannot move any more, the limiting plate 32 does not rotate, and the bending section 312 just leaves the locking hole and the inclined section 311 enters the accommodating groove 51 to realize unlocking;

continuing to pull the handle 21 outwardly, the handle 21 pushes the plug away from the connector via the stop 212 and the locking tab reverses direction to proceed as shown in fig. 9 and as shown in fig. 8.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.