Straight insertion self-locking anti-explosion electrical connection device, and plug and socket thereof

1. A straight insertion self-locking anti-explosion electrical connection device, comprising a plug ( 100 ) and a socket ( 200 ) adapted to the plug ( 100 ), wherein

the plug ( 100 ) is provided with a plugging bolt, the plugging bolt is provided with two or more plug power supply electrodes ( 121 ) and a plug grounding electrode ( 111 ), a side wall of the plugging bolt is further provided with one or more plug self-locking portions ( 112 ), the plug self-locking portion ( 112 ) being a circular hole, or a groove or a bump with a curved surface structure, and an orientation positioning hole ( 13 ) is further provided on the plugging bolt in an insertion direction;

the socket ( 200 ) is provided with a jack ( 211 ) adapted to the plugging bolt, a wall of the jack ( 211 ) is provided with two or more socket power supply electrodes ( 25 ) and a socket grounding electrode ( 26 ) that respectively correspond to the plug power supply electrodes ( 121 ) and the plug grounding electrode ( 111 ); the wall of the jack ( 211 ) is further provided with socket self-locking portions ( 24 ) corresponding to the plug self-locking portions ( 112 ), each socket self-locking portion ( 24 ) is provided with a clamping and locking member ( 243 ) having a convex or concave surface structure or a circular hole, the clamping and locking member ( 243 ) matches with the plug self-locking portion ( 112 ), and an orientation positioning pillar ( 221 ) matching with the orientation positioning hole ( 13 ) is further provided in the jack ( 211 ); and

the plug ( 100 ) is directly inserted into the jack ( 211 ) of the socket ( 200 ) with the plugging bolt, and is fastened through cooperation between the socket self-locking portions ( 24 ) in the socket ( 200 ) and the plug self-locking portions ( 112 ) on the plug ( 100 ), the plug power supply electrodes ( 121 ) and the plug grounding electrode ( 111 ) on the plug ( 100 ) respectively and correspondingly contact the socket power supply electrodes ( 25 ) and the socket grounding electrode ( 26 ) in the socket ( 200 ) sufficiently to enable power connection, and the plug ( 100 ) is pulled out for disconnection against a fastening force from the socket self-locking portions ( 24 ) under an external force in a direction opposite to the insertion direction,

wherein the plugging bolt is formed by a first plugging pillar ( 11 ) and a second plugging pillar ( 12 ) with outline dimensions descending along the insertion direction; the plug grounding electrode ( 111 ) is provided on a side surface of the first plugging pillar ( 11 ), the plug power supply electrodes ( 121 ) are provided on side surfaces of the second plugging pillar ( 12 ), and the plug self-locking portion ( 112 ) is provided on a side surface of the first plugging pillar ( 11 ).

2. The straight insertion self-locking anti-explosion electrical connection device according to claim 1 , wherein the curved surface structures of the plug self-locking portion ( 112 ) and the clamping and locking member ( 243 ) are of hemispherical shapes with identical radiuses.

3. The straight insertion self-locking anti-explosion electrical connection device according to claim 2 , wherein contact surfaces of the plug power supply electrodes ( 121 ) on the plugging bolt are of inclined surface structures, contact surfaces of the socket power supply electrodes ( 25 ) in the jack ( 211 ) are also of inclined surface structures, and the inclined surfaces of the plug power supply electrodes ( 121 ) are parallel to the inclined surfaces of the corresponding socket power supply electrodes ( 25 ).

4. The socket according to claim 3 , having a housing ( 21 ) and a socket substrate ( 22 ), wherein the housing ( 21 ) is provided on the socket substrate ( 22 ), the jack ( 211 ) is provided on a middle portion of the housing ( 21 ), and an edge of the jack ( 211 ) is provided with a notch ( 212 ); two power supply electrode mounting positions ( 222 ), two socket self-locking portion mounting positions ( 224 ), one grounding electrode mounting position ( 226 ), and one wiring position ( 227 ) are provided inside the socket substrate ( 22 ), the two power supply electrode mounting positions ( 222 ) being oppositely disposed, and the two socket self-locking portion mounting positions ( 224 ) also being oppositely disposed; alternatively, three power supply electrode mounting positions ( 222 ), two socket self-locking portion mounting positions ( 224 ), one grounding electrode mounting position ( 226 ), and one wiring position ( 227 ) are provided inside the socket substrate ( 22 ), two of the three power supply electrode mounting positions ( 222 ) being oppositely disposed and the other one being disposed in a direction perpendicular to a connecting line between the two opposite power supply electrode mounting positions ( 222 ), and the two socket self-locking portion mounting positions ( 224 ) being oppositely disposed; the socket power supply electrodes ( 25 ), the socket self-locking portions ( 24 ), and the socket grounding electrode ( 26 ) are respectively and correspondingly mounted in the power supply electrode mounting positions ( 222 ), the socket self-locking portion mounting positions ( 224 ), and the grounding electrode mounting position ( 226 ); and the socket self-locking portions ( 24 ) are fixed above the socket power supply electrodes ( 25 ).

5. The straight insertion self-locking anti-explosion electrical connection device according to claim 2 , wherein two opposite plug self-locking portions ( 112 ) are disposed.

6. The straight insertion self-locking anti-explosion electrical connection device according to claim 5 , wherein contact surfaces of the plug power supply electrodes ( 121 ) on the plugging bolt are of inclined surface structures, contact surfaces of the socket power supply electrodes ( 25 ) in the jack ( 211 ) are also of inclined surface structures, and the inclined surfaces of the plug power supply electrodes ( 121 ) are parallel to the inclined surfaces of the corresponding socket power supply electrodes ( 25 ).

7. The straight insertion self-locking anti-explosion electrical connection device according to claim 1 , wherein contact surfaces of the plug power supply electrodes ( 121 ) on the plugging bolt are of inclined surface structures, contact surfaces of the socket power supply electrodes ( 25 ) in the jack ( 211 ) are also of inclined surface structures, and the inclined surfaces of the plug power supply electrodes ( 121 ) are parallel to the inclined surfaces of the corresponding socket power supply electrodes ( 25 ).

8. The socket according to claim 7 , wherein contact surfaces of the socket power supply electrodes ( 25 ) in the jack ( 211 ) are of inclined surface structures, and the inclined surfaces of the socket power supply electrodes ( 25 ) are parallel to inclined surfaces of corresponding power supply electrodes on the plug; a contact surface of the socket grounding electrode ( 26 ) in the jack ( 211 ) is also of an inclined surface structure, and the inclined surface of the socket grounding electrode ( 26 ) is parallel to an inclined surface of a corresponding grounding electrode on the plug.

9. A straight insertion self-locking anti-explosion electrical connection device, comprising a plug ( 100 ) and a socket ( 200 ) adapted to the plug ( 100 ), wherein

the plug ( 100 ) is provided with a plugging bolt, the plugging bolt is provided with two or more plug power supply electrodes ( 121 ) and a plug grounding electrode ( 111 ), a side wall of the plugging bolt is further provided with one or more plug self-locking portions ( 112 ), the plug self-locking portion ( 112 ) being a circular hole, or a groove or a bump with a curved surface structure, and an orientation positioning hole ( 13 ) is further provided on the plugging bolt in an insertion direction;

the socket ( 200 ) is provided with a jack ( 211 ) adapted to the plugging bolt, a wall of the jack ( 211 ) is provided with two or more socket power supply electrodes ( 25 ) and a socket grounding electrode ( 26 ) that respectively correspond to the plug power supply electrodes ( 121 ) and the plug grounding electrode ( 111 ); the wall of the jack ( 211 ) is further provided with socket self-locking portions ( 24 ) corresponding to the plug self-locking portions ( 112 ), each socket self-locking portion ( 24 ) is provided with a clamping and locking member ( 243 ) having a convex or concave surface structure or a circular hole, the clamping and locking member ( 243 ) matches with the plug self-locking portion ( 112 ), and an orientation positioning pillar ( 221 ) matching with the orientation positioning hole ( 13 ) is further provided in the jack ( 211 ); and

the plug ( 100 ) is directly inserted into the jack ( 211 ) of the socket ( 200 ) with the plugging bolt, and is fastened through cooperation between the socket self-locking portions ( 24 ) in the socket ( 200 ) and the plug self-locking portions ( 112 ) on the plug ( 100 ), the plug power supply electrodes ( 121 ) and the plug grounding electrode ( 111 ) on the plug ( 100 ) respectively and correspondingly contact the socket power supply electrodes ( 25 ) and the socket grounding electrode ( 26 ) in the socket ( 200 ) sufficiently to enable power connection, and the plug ( 100 ) is pulled out for disconnection against a fastening force from the socket self-locking portions ( 24 ) under an external force in a direction opposite to the insertion direction,

wherein contact surfaces of the plug power supply electrodes ( 121 ) on the plugging bolt are of inclined surface structures, contact surfaces of the socket power supply electrodes ( 25 ) in the jack ( 211 ) are also of inclined surface structures, and the inclined surfaces of the plug power supply electrodes ( 121 ) are parallel to the inclined surfaces of the corresponding socket power supply electrodes ( 25 ).

10. The straight insertion self-locking anti-explosion electrical connection device according to claim 9 , wherein a contact surface of the plug grounding electrode ( 111 ) on the plugging bolt is of an inclined surface structure, a contact surface of the socket grounding electrode ( 26 ) in the jack ( 211 ) is also of an inclined surface structure, and the inclined surface of the plug grounding electrode ( 111 ) is parallel to the inclined surface of the socket grounding electrode ( 26 ).

11. A socket, comprising a jack ( 211 ), wherein a wall of the jack ( 211 ) is provided with two or more socket power supply electrodes ( 25 ) and a socket grounding electrode ( 26 ), and is further provided with one or more socket self-locking portions ( 24 ); the socket self-locking portion ( 24 ) is used to achieve a self-locking effect together with a plug self-locking portion ( 112 ) on a plug, each socket self-locking portion ( 24 ) is provided with a clamping and locking member ( 243 ) having a convex or concave surface structure or a circular hole, and the clamping and locking member ( 243 ) matches with the plug self-locking portion ( 112 ) provided on the plug; and an orientation positioning pillar ( 221 ) is further provided in the jack ( 211 ),

wherein contact surfaces of the plug power supply electrodes ( 121 ) on the plugging bolt are of inclined surface structures, and the inclined surfaces of the plug power supply electrodes ( 121 ) are parallel to inclined surfaces of corresponding power supply electrodes on the socket; a contact surface of the plug grounding electrode ( 111 ) on the plugging bolt is also of an inclined surface structure, and the inclined surface of the plug grounding electrode ( 111 ) is parallel to an inclined surface of a corresponding grounding electrode on the socket.

12. The socket according to claim 11 , wherein a rib plate that firmly fits the plugging bolt is provided around the jack ( 211 ).

13. The socket according to claim 12 , wherein two opposite socket self-locking portions ( 24 ) are disposed on the wall of the jack ( 211 ), and the curved surface structure of the clamping and locking member ( 243 ) is of a hemispherical shape.

14. The socket according to claim 12 , wherein contact surfaces of the socket power supply electrodes ( 25 ) in the jack ( 211 ) are of inclined surface structures, and the inclined surfaces of the socket power supply electrodes ( 25 ) are parallel to inclined surfaces of corresponding power supply electrodes on the plug; a contact surface of the socket grounding electrode ( 26 ) in the jack ( 211 ) is also of an inclined surface structure, and the inclined surface of the socket grounding electrode ( 26 ) is parallel to an inclined surface of a corresponding grounding electrode on the plug.