CN110224273B

CN110224273B - Connector base

Info

Publication number: CN110224273B
Application number: CN201910609247.6A
Authority: CN
Inventors: 黄应敏; 邹科敏; 邵源鹏; 高伟光; 许翠珊; 冯泽华; 冯家杰
Original assignee: Guangzhou Panyu Cable Group Co Ltd
Current assignee: Guangzhou Panyu Cable Group Co Ltd
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2023-04-28
Anticipated expiration: 2039-07-05
Also published as: CN110224273A

Abstract

The invention relates to the field of electric tools, in particular to a connector base, which comprises a male plug and a female plug, wherein the male plug comprises a first connecting structure plug cylinder arranged at the rear part, and a conductive torch is arranged on the inner side wall of the plug cylinder; the female plug comprises an insulating sleeve, a conductive insert finger and a lock cylinder, wherein the conductive insert finger is arranged in the insulating sleeve, the lock cylinder is movably sleeved outside the insulating sleeve, a second connecting structure is arranged at the front part of the lock cylinder, and the lock cylinder and the insulating sleeve are respectively provided with a first limiting structure and a second limiting structure, so that the lock cylinder can be limited in the axial forward sliding manner; when the plug-in cylinder and the insulating sleeve are plugged in, the conductive plug-in finger is inserted into the conductive torch and is in conductive connection with the conductive torch, and the second connecting structure and the first connecting structure can be in matched connection by moving the lock cylinder, so that the insulating sleeve and the plug-in cylinder cannot be separated from each other but can rotate relatively; the invention can realize the quick connection of the male plug and the female plug, is convenient to operate, and can freely rotate under the connection state, thereby being flexible to use.

Description

Connector base

Technical Field

The invention relates to the field of electric tools, in particular to a connector base.

Background

The connector is generally used for fixing and conducting connection of cable wires and electric appliance wiring parts (such as wiring rows in a distribution box) needing wiring, the male plug and the female plug of the existing connector are generally connected in a hanging buckle mode, the angles of the male plug and the female plug are required to be adjusted to enable the positions of hanging pins to be opposite to the positions of hanging grooves during specific use, then the male plug is inserted into the female plug and rotated for a certain angle, and the hanging pins are clamped and embedded in the hanging grooves, so that hanging buckle connection of the male plug and the female plug is achieved. This connection has the following problems: the operation is inconvenient, and the male plug can be inserted into the female plug only after the angle of the male plug and the female plug is adjusted before connection; after the male plug and the female plug are connected, the male plug and the female plug cannot rotate relatively, so that a plurality of inconveniences can be brought in actual use, because the male plug and/or the female plug are/is generally connected with the cable, when the cable is twisted, the twisting of the cable cannot be eliminated by rotating the male plug or the female plug, the cable is easy to knot and even damage, inconvenience is brought to operation and construction, in addition, for cables with thicker diameters, relatively large restoring torsion can be generated when the cable is twisted, and the restoring torsion can drive the male plug or the female plug to rotate so as to possibly cause accidental detachment of the male plug and the female plug.

Disclosure of Invention

In order to solve the problems, the invention aims to provide the connector base, which can realize the quick connection of the male plug and the female plug, is convenient to operate, and can freely rotate in a connection state, so that the connector base is flexible to use.

The task of the invention is realized by the following technical scheme:

the connector comprises a male plug and a female plug, wherein the male plug comprises a plug cylinder, a first connecting structure is arranged at the rear part of the plug cylinder, and a conductive torch is arranged on the inner side wall of the plug cylinder; the female plug comprises an insulating sleeve, a conductive insert finger and a lock cylinder, wherein the conductive insert finger is coaxially and fixedly arranged in an inner cavity of the insulating sleeve, the lock cylinder is movably sleeved outside the insulating sleeve and can rotate and axially slide relative to the insulating sleeve, a second connecting structure matched with a first connecting structure is arranged at the front part of the lock cylinder, and a first limiting structure and a second limiting structure which are opposite are respectively arranged on the lock cylinder and the insulating sleeve, so that the lock cylinder can be limited in the axial forward sliding manner; when the plug-in cylinder and the insulating sleeve are plugged in, the conductive plug-in finger is inserted into the conductive torch and is in conductive connection with the conductive torch, and the second connecting structure and the first connecting structure can be in matched connection by moving the lock cylinder, so that the insulating sleeve and the plug-in cylinder cannot be separated from each other but can rotate relatively; one of the male plug and the female plug is provided with a conductive positioning mechanism for fixedly connecting the wiring part of the electrical appliance, and the other is provided with a wiring mechanism for fixedly connecting the cable wire.

Preferably, the conductive positioning mechanism is an elastic clamping seat, the elastic clamping seat comprises a fixed clamping plate and at least one movable clamping plate, the back of the fixed clamping plate is fixedly connected with the conductive torch or the conductive finger, the front of the fixed clamping plate vertically extends out of at least one screw rod with an adjusting nut, the movable clamping plate vertically penetrates through the screw rod and can slide back and forth between the adjusting nut and the fixed clamping plate along the screw rod, two compression springs are sleeved on the screw rod, two ends of one compression spring respectively abut against the fixed clamping plate and the movable clamping plate, two ends of the other compression spring respectively abut against the movable clamping plate and the adjusting nut, the tightness degree of the movable clamping plate and the distance between the movable clamping plate and the fixed clamping plate can be adjusted through the adjusting nut, so that the movable clamping plate and the fixed clamping plate can be matched to elastically clamp an electric appliance wiring part, and the electric appliance wiring part is connected with the conductive torch or the conductive finger through the fixed clamping plate.

Preferably, the wiring mechanism comprises a wire connecting mechanism and a wire locking mechanism, the cable is electrically connected with the conductive plug finger or the conductive torch through the wire connecting mechanism, and is fixedly connected with the female plug or the male plug through the wire locking mechanism.

Preferably, the locking wire mechanism comprises a locking wire seat and a locking wire nut, one end of the locking wire seat is fixedly connected with the corresponding female plug or male plug in a sealing way, a conical elastic pressing sleeve formed by encircling a plurality of elastic sheets is arranged at the other end of the locking wire seat, a sealing rubber sleeve is arranged in the conical elastic pressing sleeve, an external thread section is arranged on the locking wire seat, the locking wire nut can be in threaded connection with the locking wire seat, a conical inner cavity corresponding to the elastic pressing sleeve is arranged in the locking wire nut, a cable passes through the locking wire seat and the locking wire nut during use, the locking wire nut is screwed tightly relative to the locking wire seat, and the conical inner cavity can extrude the elastic pressing sleeve to shrink and press the cable outer sheath through the sealing rubber sleeve, so that the cable is fixedly connected to the corresponding female plug or male plug.

Preferably, the female plug further comprises a reset spring, the reset spring is sleeved between the insulating sleeve and the lock cylinder, and two ends of the reset spring are respectively abutted or connected with the first limiting structure and the second limiting structure.

Preferably, the outer side wall of the insulating sleeve is further provided with a third limiting structure, and the first limiting structure is located between the first limiting structure and the third limiting structure and can only move between the first limiting structure and the third limiting structure.

Preferably, the first connection structure is including setting up the connection pad of grafting section of thick bamboo rear end, the lateral wall of connection pad is equipped with the external screw thread, the second connection structure is including setting up the internal screw thread of lock section of thick bamboo front end inside wall, thereby lock section of thick bamboo and the connection pad of grafting section of thick bamboo can carry out threaded connection and realize locking or loosen.

Preferably, the length of the lock cylinder is as follows: when the plug cylinder is inserted into the insulating sleeve to a stroke stop point, the lock cylinder moves to a front stop point and just enables the second connecting structure to be in matched connection with the first connecting structure.

Preferably, the end of the conductive finger is provided with an insulating arc-extinguishing cap, the side surface of the conductive finger is sleeved with an elastic grid type conductive sleeve, the diameter of the conductive sleeve is larger than the inner diameter of the conductive torch, and when the conductive finger is inserted into the conductive torch, the conductive sleeve is extruded and deformed to be clung to the inner wall of the conductive torch so as to be in conductive connection.

Preferably, a sealing ring is arranged on the outer side wall of the plug tube and/or the inner wall of the insulating sleeve, and the sealing ring deforms under the extrusion of the plug tube and the insulating sleeve so as to seal a gap between the plug tube and the insulating sleeve.

During connection, the plug-in cylinder of the male plug is directly inserted into the insulating sleeve of the female plug, and then the lock cylinder is moved to enable the second connecting structure and the first connecting structure to be matched and locked, so that the male plug and the female plug can be connected together, and the male plug and the female plug can freely rotate while being kept connected; when the plug is disassembled, the second connecting structure and the first connecting structure are unlocked only by moving the lock cylinder, and then the male plug and the female plug can be pulled out from each other.

The beneficial effects of the invention are as follows: (1) the male plug and the female plug can be quickly connected, the operation is convenient, the male plug and the female plug can freely rotate in a connection state, and the use is flexible; (2) the two sides of the movable clamping plate of the elastic clamping seat are respectively provided with a compression spring, the tightness degree of the movable clamping plate and the distance between the movable clamping plate and the fixed clamping plate can be conveniently adjusted through the adjusting nut, so that the adjustment can be carried out according to the thickness of a wiring part (such as a wiring row) of a connecting electrical appliance, the firm clamping can be ensured, the clamping tightness can be adjusted, and the operation is convenient; (3) the cable locking seat is provided with the conical elastic pressing sleeve formed by encircling the elastic sheets, the inner ring of the elastic pressing sleeve is provided with the sealing rubber sleeve, the cable locking nut is provided with the corresponding conical side wall, the elastic pressing sleeve is pressed circumferentially by the conical side wall to enable the elastic pressing sleeve to deform towards the axis to clamp the cable outer sheath, the operation is simple and convenient, the cable is circumferentially and firmly fixed by the extrusion force, the sealing rubber sleeve is arranged in the elastic pressing sleeve, the sealing between the cable locking seat and the cable outer sheath can be formed, the locking friction force of the elastic pressing sleeve on the cable can be increased, and meanwhile, the cable can be effectively prevented from being crushed; (4) the reset spring is arranged, so that the lock cylinder is retracted from the port of the insulating sleeve under the action of the reset spring when the female plug and the male plug are not inserted, the lock cylinder cannot shake at will, and certain elastic buffering is provided when the lock cylinder is moved for connection, the operation is convenient, and the operation experience can be increased; (5) the first connecting structure and the second connecting structure are mutually matched threaded connecting structures, so that the connection is more stable and reliable, and the operation is convenient and fast compared with the traditional hanging buckle type connecting structure; (6) the length of the lock cylinder is reasonably set, so that the connection of the first connection structure and the second connection structure can be realized when the female plug and the male plug are completely inserted, and after the connection, the female plug and the male plug can relatively rotate but cannot relatively axially slide, thereby being beneficial to the reliability of conductive connection; (7) the female plug is in conductive connection with the conductive cylinder of the male plug through the grid type conductive sleeve on the conductive insert finger, and the grid type conductive sleeve is of a grid structure, so that burning loss of an electric arc to a contact can be reduced, the space for limiting electric arc expansion can be limited, and the electricity safety is further increased; (8) the sealing rings are arranged on the outer side wall of the plug tube and/or the inner wall of the insulating sleeve, so that the gap between the plug tube and the insulating sleeve can be sealed, and the waterproof performance of the whole connector base is improved.

Drawings

FIG. 1 is a schematic view of the structure of the joint seat in the embodiment 1 when not plugged;

FIG. 2 is a schematic view of the structure of the connector base in the plugging process in the embodiment 1;

FIG. 3 is a schematic view showing the internal structure of the joint seat in the embodiment 1 when not plugged;

FIG. 4 is an exploded view of FIG. 1;

FIG. 5 is a reference schematic view showing the use state of the joint base in embodiment 1;

fig. 6 is a schematic view of the structure of the connector base in the plugging in embodiment 2.

The female plug 1, the insulating sleeve 11, the second flange 111, the collar 112, the lock cylinder 12, the internal thread 121, the first flange 122, the return spring 13, the conductive finger 14, the wire insertion hole 141, the insulating arc extinguishing cap 15, the conductive sleeve 16, the wire locking mechanism 17, the wire locking seat 171, the elastic pressing sleeve 1711, the sealing rubber sleeve 1712, the external thread section 1713, the wire locking nut 172, the conical inner cavity 1721, the buffer cushion 18, the male plug 2, the plug cylinder 21, the connecting disc 211, the external thread 2111, the sealing ring 212, the conductive cylinder 22, the elastic clamping seat 23, the fixed clamping plate 231, the movable clamping plate 232, the screw 233, the adjusting nut 234, the first compression spring 235, the second compression spring 236, the connecting terminal 237, the mounting hole 2371 and the cable 3.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the description of the specific embodiments is intended for purposes of illustration only and is not intended to limit the scope of the present disclosure.

Example 1:

as shown in fig. 1-5, the connector comprises a male plug 2 and a female plug 1, wherein the male plug 2 comprises a plug cylinder 21, a connecting disc 211 is arranged at the rear end of the plug cylinder 21, an external thread 2111 is arranged on the outer side wall of the connecting disc 211, and a conductive torch 22 is arranged on the inner side wall of the plug cylinder 21; the female plug 1 comprises an insulating sleeve 11, a conductive insert finger 14, a lock cylinder 12 and a return spring 13, wherein the conductive insert finger 14 is coaxially and fixedly arranged in an inner cavity of the insulating sleeve 11, the lock cylinder 12 is movably sleeved outside the insulating sleeve 11, so that the lock cylinder 12 can rotate relative to the insulating sleeve 11 and axially slide relative to the insulating sleeve 11, an inner side wall at the front end of the lock cylinder 12 is provided with an inner thread 121 matched with an outer thread 2111 of a connecting disc 211, the inner side at the rear end of the lock cylinder 12 is provided with a first flange 122, the front part and the rear part of the insulating sleeve 11 are respectively provided with a second flange 111 and a convex ring 112, the second flange 111 and the convex ring 112 are respectively positioned at two sides of the first flange 122, the axial sliding of the lock cylinder 12 can be limited, the return spring 13 is sleeved between the insulating sleeve 11 and the lock cylinder 12, and two ends of the return spring 13 are respectively abutted against the first flange 122 and the second flange 111; when the plug cylinder 21 and the insulating sleeve 11 are plugged, the conductive plug finger 14 is inserted into the conductive torch 22 and is in conductive connection with the conductive torch, the lock cylinder 12 is slid forwards to enable the lock cylinder 12 to be positioned at the connecting disc 211, and then the lock cylinder 12 is rotated to enable the lock cylinder 12 to be in threaded connection with the connecting disc 211, so that the insulating sleeve 11 and the plug cylinder 21 cannot be separated from each other but can rotate relatively; set up reset spring 13 for when female plug 1 and public plug 2 did not peg graft, lock cylinder 12 was retracted to the back dead center from insulating sleeve 11's port under reset spring 13's effect, can not rock at will, and has certain elasticity buffering when removing lock cylinder 12 and connect, the operation of being convenient for, and can increase operation experience.

The male plug 2 is fixedly connected with a conductive positioning mechanism, the conductive positioning mechanism is an elastic clamping seat 23, the elastic clamping seat 23 comprises a fixed clamping plate 231 and two movable clamping plates 232, the back surface of the fixed clamping plate 231 is fixedly connected with the rear end of the conductive torch 22, four corners of the front surface of the fixed clamping plate 231 respectively vertically extend out of a screw 233 with an adjusting nut 234, the two movable clamping plates 232 vertically penetrate through the two same-side screw 233 and can slide back and forth between the adjusting nut 234 and the fixed clamping plate 231 along the screw 233, two compression springs are sleeved on each screw 233, namely a first compression spring 235 and a second compression spring 236, two ends of the first compression spring 235 respectively abut against the fixed clamping plate 231 and the corresponding movable clamping plate 232, two ends of the second compression spring 236 respectively abut against the corresponding movable clamping plate 232 and the adjusting nut 234, and the tightness degree of each movable clamping plate 232 and the distance between the movable clamping plate 232 and the fixed clamping plate 231 can be respectively adjusted through the adjusting nuts 234, so that the movable clamping plate 232 and the fixed clamping plate 231 can be matched with the wiring part (such as a wiring part in a distribution box) to elastically clamp the wiring part, and the electrical appliance wiring part is connected with the conductive torch 22 through the fixed clamping plate 231. Through set up a compression spring respectively in movable splint 232 both sides, can conveniently adjust the elasticity degree of movable splint 232 and the distance between with fixed splint 231 through adjusting nut to can adjust according to the thickness of connecting electrical apparatus wiring position (like the wiring row), can guarantee that the centre gripping is firm, can adjust the centre gripping elasticity degree again, convenient operation.

The female plug 1 is fixedly connected with a wire locking mechanism 17, and the rear end of the conductive insertion finger 14 is provided with a wire insertion hole 141 for inserting and electrically connecting a wire of a cable. The locking mechanism 17 comprises a locking seat 171 and a locking nut 172, one end of the locking seat 171 is fixedly connected with the female plug 1 in a sealing way, a conical elastic pressing sleeve 1711 formed by enclosing a plurality of elastic sheets is arranged at the other end of the locking seat, a sealing rubber sleeve 1712 is arranged in the conical elastic pressing sleeve 1711, an external thread section 1713 is arranged on the locking seat 171, the locking nut 172 can be in threaded connection with the locking seat 171, a conical inner cavity 1721 corresponding to the elastic pressing sleeve 1711 is arranged in the locking nut 172, when the locking mechanism is used, a cable passes through the locking seat 171 and the locking nut 172, a wire of the cable is inserted into a wire insertion hole 141, the locking nut 172 is screwed tightly relative to the locking seat 171, and the conical inner cavity 1721 can extrude the elastic pressing sleeve 1711 to shrink and compress the cable outer sheath through the sealing rubber sleeve 1712, so that the cable is fixedly connected to the corresponding female plug 1. The locking wire mechanism 17 presses the elastic pressing sleeve 1711 circumferentially through the conical side wall to enable the elastic pressing sleeve 1711 to deform towards the axis to clamp the cable outer sheath, the operation is simple and convenient, the cable outer sheath is circumferentially subjected to extrusion force and is firmly fixed, the elastic pressing sleeve 1711 is internally provided with the sealing rubber sleeve 1712, the locking wire seat 171 and the cable outer sheath can form sealing, the locking friction force of the elastic pressing sleeve 1711 to the cable outer sheath can be increased, and meanwhile the cable outer sheath can be effectively prevented from being crushed.

When the plug connector is used, the male plug 2 is fixedly connected to the wiring row of the distribution box through the elastic clamping seat 23, the cable is fixedly connected to the rear end of the female plug 1 through the locking mechanism 17, then the plug cylinder 21 of the male plug 2 and the insulating sleeve 11 of the female plug 1 are directly plugged, and then the lock cylinder 12 is slid and rotated to enable the lock cylinder 12 to be in threaded connection with the connecting disc 211 of the plug cylinder 21, so that the male plug 2 and the female plug 1 can be connected together, and the male plug 2 and the female plug 1 can be mutually and freely rotated while being kept connected. When the male plug 2 and the female plug 1 need to be separated, the male plug 2 and the female plug 1 can be pulled out from each other and smoothly separated only by rotating the lock cylinder 12 to loosen the threaded connection.

The length of the lock cylinder 12 is: when the plug cylinder 21 is inserted into the insulating sleeve 11 to a stroke stop point, the lock cylinder 12 can be just in threaded connection with the connecting disc 211 when moving to a front stop point, the design ensures that the female plug 1 and the male plug 2 can realize threaded connection between the lock cylinder 12 and the connecting disc 211 when being completely plugged, and after connection, the female plug 1 and the male plug 2 can relatively rotate but cannot relatively axially slide, thereby being beneficial to the conductive connection reliability of the conductive plug fingers 14 and the conductive cylinder 22. In addition, the bottom of insulating sleeve 11 is equipped with blotter 18, can cushion the striking of grafting section of thick bamboo 21 tip to insulating sleeve 11 bottom, increases life, and can improve operation experience.

The end of the conductive finger 14 is provided with an insulating arc extinguishing cap 15, the side surface of the conductive finger 14 is sleeved with an elastic grid type conductive sleeve 16, the diameter of the conductive sleeve 16 is larger than the inner diameter of the conductive tube 22, and when the conductive finger 14 is inserted into the conductive tube 22, the conductive sleeve 16 is extruded and deformed to be clung to the inner wall of the conductive tube 22 for conductive connection. The grid-shaped conductive sleeve 16 is of a grid-shaped structure, and a plurality of gaps are formed in the surface of the grid-shaped conductive sleeve, so that burning loss of an arc to a contact can be reduced, the space for expanding the arc can be limited, and the electricity utilization safety is further improved.

The outer side wall of the plug tube 21 is provided with a sealing ring 212, and the sealing ring 212 deforms under the extrusion of the plug tube 21 and the insulating sleeve 11 so as to seal the gap between the plug tube 21 and the insulating sleeve 11 and increase the waterproof performance of the whole quick plug tube 21.

The implementation is as follows: 2:

on the basis of the technical scheme of the embodiment 1, the conductive positioning mechanism is changed:

as shown in fig. 6, the conductive positioning mechanism is a connection terminal 237, one end of the connection terminal 237 is fixedly connected with the conductive cylinder 22, and the other end is provided with a mounting hole 2371 for fixedly connecting the connection part of the electrical appliance through a screw. This structure is simpler and more convenient to use, although the range of application is smaller than that of the elastic holder 23.

The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the invention referred to in this application is not limited to the specific combinations of features described above, but also covers other technical solutions which may be formed by any combination of the features described above or their equivalents without departing from the inventive concept. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.

Claims

1. The connector seat is characterized by comprising a male plug and a female plug, wherein the male plug comprises a plug cylinder, a first connecting structure is arranged at the rear part of the plug cylinder, and a conductive torch is arranged on the inner side wall of the plug cylinder; the female plug comprises an insulating sleeve, a conductive insert finger and a lock cylinder, wherein the conductive insert finger is coaxially and fixedly arranged in an inner cavity of the insulating sleeve, the lock cylinder is movably sleeved outside the insulating sleeve and can rotate and axially slide relative to the insulating sleeve, a second connecting structure matched with a first connecting structure is arranged at the front part of the lock cylinder, and a first limiting structure and a second limiting structure which are opposite are respectively arranged on the lock cylinder and the insulating sleeve, so that the lock cylinder can be limited in the axial forward sliding manner; when the plug-in cylinder and the insulating sleeve are plugged in, the conductive plug-in finger is inserted into the conductive torch and is in conductive connection with the conductive torch, and the second connecting structure and the first connecting structure can be in matched connection by moving the lock cylinder, so that the insulating sleeve and the plug-in cylinder cannot be separated from each other but can rotate relatively; one of the male plug and the female plug is provided with a conductive positioning mechanism for fixedly connecting the wiring part of the electrical appliance, and the other is provided with a wiring mechanism for fixedly connecting the cable wire.

2. The connector base according to claim 1, wherein the conductive positioning mechanism is an elastic clamping base, the elastic clamping base comprises a fixed clamping plate and at least one movable clamping plate, the back surface of the fixed clamping plate is fixedly connected with the conductive torch or the conductive finger, the front surface of the fixed clamping plate vertically extends out of at least one screw rod with an adjusting nut, the movable clamping plate vertically penetrates through the screw rod and can slide back and forth between the adjusting nut and the fixed clamping plate along the screw rod, two compression springs are sleeved on the screw rod, two ends of one compression spring respectively abut against the fixed clamping plate and the movable clamping plate, two ends of the other compression spring respectively abut against the movable clamping plate and the adjusting nut, the tightness degree of the movable clamping plate and the distance between the movable clamping plate and the fixed clamping plate can be adjusted through the adjusting nut, so that the movable clamping plate and the fixed clamping plate can be matched to elastically clamp an electric appliance wiring part, and the electric appliance wiring part is connected with the conductive torch or the conductive finger through the fixed clamping plate.

3. The connector assembly of claim 1, wherein said wiring mechanism includes a wire connection mechanism and a wire locking mechanism, wherein a cable is conductively connected to said conductive finger or said conductive flashlight via the wire connection mechanism and fixedly connected to said female plug or said male plug via the wire locking mechanism.

4. A connector base according to claim 3, wherein the locking mechanism comprises a locking base and a locking nut, one end of the locking base is fixedly connected with the corresponding female plug or male plug in a sealing manner, the other end of the locking base is provided with a conical elastic pressing sleeve formed by encircling a plurality of elastic sheets, a sealing rubber sleeve is arranged in the conical elastic pressing sleeve, an external thread section is arranged on the locking base, the locking nut can be in threaded connection with the locking base, a conical inner cavity corresponding to the elastic pressing sleeve is arranged in the locking nut, in use, a cable passes through the locking base and the locking nut, the locking nut is screwed tightly relative to the locking base, and the conical inner cavity can extrude the elastic pressing sleeve to shrink and press the cable outer jacket through the sealing rubber sleeve, so that the cable is fixedly connected to the corresponding female plug or male plug.

5. The connector assembly of claim 1, wherein the female plug further comprises a return spring, wherein the return spring is sleeved between the insulating sleeve and the lock cylinder, and two ends of the return spring are respectively abutted against or connected with the first limiting structure and the second limiting structure.

6. The connector assembly of claim 1, wherein the outer sidewall of the insulating sleeve is further provided with a third limit structure, the first limit structure being located between and moveable only between the first limit structure and the third limit structure.

7. The connector of any one of claims 1-6, wherein the first connection structure comprises a connection disc arranged at the rear end of the plug cylinder, an outer side wall of the connection disc is provided with an outer thread, the second connection structure comprises an inner thread arranged on the inner side wall of the front end of the lock cylinder, and the lock cylinder and the connection disc of the plug cylinder can be connected in a threaded manner so as to realize locking or unlocking.

8. The connector assembly of any one of claims 1-6, wherein the lock cylinder has a length of: when the plug cylinder is inserted into the insulating sleeve to a stroke stop point, the lock cylinder moves to a front stop point and just enables the second connecting structure to be in matched connection with the first connecting structure.

9. The connector of any one of claims 1-6, wherein an insulating arc-extinguishing cap is arranged at the end of the conductive finger, an elastic grid type conductive sleeve is sleeved on the side surface of the conductive finger, the diameter of the conductive sleeve is larger than the inner diameter of the conductive torch, and when the conductive finger is inserted into the conductive torch, the conductive sleeve is extruded and deformed to be clung to the inner wall of the conductive torch so as to be in conductive connection.

10. The connector assembly according to any one of claims 1-6, wherein sealing rings are provided on the outer side wall of the plug tube and/or on the inner wall of the insulating sleeve, the sealing rings being deformed under the extrusion of the plug tube and the insulating sleeve so as to be able to seal the gap between the plug tube and the insulating sleeve.