CN210806049U - Electric connector - Google Patents

Abstract

An electric connector comprises a locking nut, a sealing gasket, a main body, a rotating nut, a sealing ring, a connecting terminal, a shifting fork, a plug cover, a connecting sleeve, a wire sealing body assembly and a packing nut, wherein the connecting terminal and the shifting fork are accommodated in the main body; this electric connector improves before, be equipped with the button on the gag, can make the spring leaf take place elastic deformation through pressing the button, when the equipment, need artifical to press the button continuously, press hard, long-term work produces certain harm to the finger, and the shift fork is through rotating and realizing the location by second location limit, the wire when the threading gets into first wiring chamber, need not give the effort that the shift fork lasts, do not hinder the hand, can realize many wires simultaneously and send the line toward first wiring intracavity, work efficiency improves.

Description

Electric connector

Technical Field

The utility model relates to an electric connector.

Background

The connector is a common component in electronic and communication engineering, and is used for erecting a communication bridge between blocked parts or isolated and non-communicated circuits in the circuit so as to circulate current and realize a preset function of the circuit; the connector is of a great variety, as the utility model discloses an electric connector that application number is 201821015089.9, in this electric connector, be equipped with the entrance hole in the gag, the button is installed in the entrance hole, through pressing the button, the button acts on the tip of spring leaf and makes the spring leaf take place local bending deformation, thereby establish the wiring intracavity with the wire clip, this electric connector can realize the connection of electric wire, nevertheless it is harder when pressing the button, when the equipment, need point to press continuously in the button top, so, after the equipment a period, staff's finger can feel painful.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists in the above-mentioned problem, the utility model provides an electric connector.

In order to achieve the above object, the present invention provides an electrical connector, comprising a main body and a plug cap sealing the main body at one side, wherein the main body has a first screwed joint and a second screwed joint at two ends and a ring groove processed at the middle part, a seal ring is installed at the ring groove, a rotating nut is connected between the first screwed joint and the second screwed joint, the main body is provided with a plurality of mounting grooves uniformly around an axis at the end of the first screwed joint, a connecting terminal is accommodated in the mounting groove, the connecting terminal comprises an integrally connected base and a pair of flanges at two sides of the base, a spring leaf with an S-shaped cross section is arranged between the two flanges, the plug cap is provided with a first wire inlet hole at a position corresponding to the mounting groove, the main body is provided with a second wire inlet hole corresponding to the mounting groove at the end of the second screwed joint, the main body is uniformly provided with a plurality of clamping grooves at the end of the first threaded joint around an axis, the clamping grooves are positioned at the same side of the corresponding mounting groove, the bottom of the clamping groove of the first threaded joint is provided with a buckling groove vertically communicated with the clamping groove, the plug cover is provided with a vertically extending clamping rod, the shape and the position of the clamping rod correspond to the clamping grooves, the outer side of the clamping rod is provided with a clamping block which can be clamped into the buckling groove, a abdicating notch is processed between the mounting groove and the clamping groove of the main body, the abdicating notch penetrates towards the outer side of the main body along the long side direction of the cross section of the mounting groove to form an abdicating area, the abdicating notch extends outwards along the short side direction of the cross section of the mounting groove to form an embedded groove, the shifting fork is arranged at the abdicating notch, and consists of a shifting plate and a fork frame connected at the two sides of the shifting, the fork frame is provided with a rotary block protruding towards the outside, a channel is formed between the two fork frames, the cross section of the rotary block is a quadrangle, the quadrangle is formed by connecting a first positioning edge, a second positioning edge and two connecting edges, and a transitional fillet is processed at the connecting position; during specific assembly, the rotary block positioned on the outer side is arranged in the caulking groove, the rotary block positioned on the inner side is limited by the wiring terminal, the fork frame part extends into the mounting groove and abuts against the upper side of the spring piece, and the clamping rod penetrates through the passage;

the shift fork can be through stirring and realize the location by first location limit or second location limit, reaches the stability of position, and the crotch acts on the spring leaf to make spring leaf and turn-ups have the first position of mutual contact chucking wire and throw off the second position that is used for the wire threading each other, and when the interlude of wire actually, because the position of shift fork is stable, can realize the threading when many wires simultaneously.

Preferably, the spring piece is provided with a first arch part and a second arch part which are oppositely arranged, and a separation part connected between the first arch part and the second arch part; the first arched part is bent by the first bent part and extends towards the opposite turnup to form a first end part, and the second arched part is bent by the second bent part and extends towards the opposite turnup to form a second end part; the first flanging comprises a first contact piece formed by upwards turning one side of the base part and a first limiting piece formed by bending one end of the first contact piece to one side of the second flanging; the second flanging comprises a second contact piece formed by turning over the other side of the base part upwards and a second limiting piece formed by bending one end, far away from the first limiting piece, of the second contact piece to one side of the first flanging; the first and second arched parts of the spring piece are flat as a whole, the first and second arched parts are attached to the inner side surfaces of the first and second contact pieces, and the first and second bent parts are correspondingly embedded in the first and second limiting pieces, so that a first wiring cavity and a second wiring cavity are enclosed in the wiring terminal;

in the technical scheme, the spring piece has strong capacity of restoring deformation, the spring piece is clamped between the flanges through integral elastic deformation, and the spring piece needs to restore deformation, so that the first and second arched parts are always tightly attached to the first and second contact pieces under the action of restoring force, the first and second arched parts are firmly connected, and the first and second bent parts are correspondingly embedded in the first and second limiting pieces, so that the spring piece is further accurately positioned.

Preferably, the first flanging further comprises a blocking piece, one end of the blocking piece and the first contact piece are integrally formed, and the other end of the blocking piece extends towards one side of the second flanging and abuts against the spring piece;

in the technical scheme, the position of the spring piece is further limited through the action of the blocking piece, so that the connection of the wiring terminal is firmer, and the inserted wire can also be abutted against the wall surface of the blocking piece.

Preferably, the first end part is punched into the first wiring cavity to form a concave part, and the second end part is punched into the second wiring cavity to form an introduction port;

in the technical scheme, the shape of the recess is matched with the fork frame, so that the fork frame and the first end part are correspondingly extruded, and the first end part is elastically deformed to a certain extent; the lead-in opening is used for guiding the lead of the electric element end when the lead enters the second wiring cavity.

Preferably, the electrical connector further includes a connecting sleeve and a locking nut, the connecting sleeve is screwed on the first threaded joint, one end of the connecting sleeve is provided with a flexible clamping jaw, a wire sealing body assembly is accommodated in the flexible clamping jaw, the wire sealing body assembly includes a first wire sealing body and a second wire sealing body, the second wire sealing body is provided with a wire sealing barrel, the wire sealing barrel can be clamped into an inner hole of the first wire sealing body, the connecting sleeve is further screwed with a tightening nut capable of drawing the flexible clamping jaw in, and the locking nut is screwed on the second threaded joint and is provided with a sealing gasket;

in the technical scheme, the wire sealing body assembly comprises a first wire sealing body and a second wire sealing body which are made of elastic materials, the first wire sealing body can be used independently and is suitable for the connection working condition that the diameter of a cable is thick, in addition, after the second wire sealing body is combined with the first wire sealing body, a through hole for the cable to pass through is reduced, the wire sealing body assembly is suitable for the connection working condition that the diameter of the cable is thin, and the flexible clamping jaws can be driven to tightly hold the wire sealing assembly through threaded connection of the clamping nuts and the connecting sleeves, so that the wire sealing assembly can elastically deform to lock the cable; in addition, the gasket is used to improve the waterproof sealing between the electrical connector and the electrical component.

Preferably, the second wire inlet hole is divided into a main wire inlet hole and a wire dividing hole, and communicated wire removing holes are formed in the main wire inlet hole and/or the wire dividing hole;

in the technical scheme, the main wire inlet hole and the wire distributing hole are consistent in structure, so that the purpose of wire distribution is achieved at the connecting end of the electric connector and the electric element, and when the wire distributing hole is convenient for actual wire distribution, the screwdriver enters from the wire distributing hole, and the electric connector and the electric element are convenient to separate.

Preferably, the circumference of the end surface of the first threaded joint is uniformly provided with first guide grooves, the first guide grooves are positioned at the outer sides of the mounting grooves, and the plug cover is provided with first guide rods corresponding to the first guide grooves;

in the above technical scheme, the first guide rod and the first guide groove play roles of mutual guiding and convenient installation.

Preferably, a second guide groove is formed in the middle of the end face of the first threaded joint, the section of the second guide groove is in a regular triangle shape, the regular triangle is provided with a guide strip protruding inwards, a second guide rod corresponding to the second guide groove is arranged in the middle of the plug cover, and the second guide rod is provided with a groove processed corresponding to the guide strip;

in the technical scheme, the second guide rod and the second guide groove play roles of mutual guide and convenient installation, wherein the upper end face of the plug cover is marked with symbols of a live wire, a zero wire and a ground wire (or the live wire and the zero wire), and the other role of the guide strip can ensure that the wiring butt joint of the two connecting ends of the electric connector is accurate, so that the occurrence of wire stringing is prevented.

Preferably, the first screwed joint is further uniformly provided with third guide grooves in the relief area, and the plug cover is provided with third guide rods corresponding to the third guide grooves;

in the above technical scheme, the third guide rod and the third guide groove play roles of mutual guiding and convenient installation.

Preferably, the number of the mounting grooves is three or two, and correspondingly, the number of the wiring terminals, the shifting forks, the first wire inlet holes and the second wire inlet holes is also three or two;

in the technical scheme, the electric connectors of the three mounting grooves are connected with the power supply wiring of the three holes, correspondingly, the electric appliances are provided with grounding wires, the electric connectors of the two mounting grooves are connected with the power supply wiring of the two holes, and the electric appliances are not provided with grounding wires.

The utility model discloses beneficial effect for prior art does: this electric connector improves before, be equipped with the button on the gag, can make the spring leaf take place elastic deformation through pressing the button, when the equipment, need artifical to press the button continuously, press hard, long-term work produces certain harm to the finger, and the shift fork is through rotating and realizing the location by second location limit, the wire when the threading gets into first wiring chamber, need not give the effort that the shift fork lasts, do not hinder the hand, can realize many wires simultaneously and send the line toward first wiring intracavity, work efficiency improves.

Drawings

Fig. 1 is an exploded view of an electrical connector of the present invention (example 1);

FIG. 2 is a schematic view of the body and rotating nut of FIG. 1;

FIG. 3 is a top view of the body and the rotating nut;

FIG. 4 is a bottom view of the body and the swivel nut;

fig. 5 is a schematic view of a wire terminal;

FIG. 6 is a schematic view of the closure;

FIG. 7 is a schematic view of the closure from another perspective;

FIG. 8 is a schematic view of a fork;

FIG. 9 is another view of the fork (to show the specific contour shape of the turning block);

FIG. 10 is a schematic view of the fork being rotated to cause the first end portion to deform into two different positions;

fig. 11 is an assembly view of an electrical connector according to the present invention (embodiment 1);

fig. 12 is an assembly diagram of the electrical connector in embodiment 1 (omitting the connecting sleeve, the wire-sealing body assembly and the packing nut);

fig. 13 is an assembly diagram of an electrical connector in embodiment 1 (omitting the connecting sleeve, the wire-sealing body assembly, the packing nut and the plug cap);

fig. 14 is an exploded view of an electrical connector according to the present invention (example 2).

In the figure: 1. locking the nut; 2. a gasket; 3. a main body; 31. a first threaded joint; 311. mounting grooves; 312. a clamping groove; 313. buckling the groove; 314. a abdication gap; 315. a relief area; 316. caulking grooves; 317. a first guide groove; 318. a second guide groove; 3181. a guide strip; 319. a third guide groove; 32. an annular groove; 33. a second threaded joint; 331. a second wiring hole; 3311. a main wiring hole; 3312. a wire dividing hole; 3313. disassembling the wire holes; 4. rotating the nut; 5. a seal ring; 6. a wiring terminal; 61. a base; 62. flanging; 62a, a first flanging; 62b, a second flanging; 621. a first limiting sheet; 622. a first contact pad; 623. a baffle plate; 624. a second limiting sheet; 625. a second contact pad; 631. a second end portion; 6311. an inlet port; 632. a second curved portion; 633. a second arching portion; 634. an isolation section; 635. a first arching portion; 636. a first curved portion; 637. a first end portion; 6371. a recessed portion; 64. a first wiring cavity; 65. a second wiring cavity; 7. a shifting fork; 71. a poking plate; 72. a turning block; 721. a first positioning edge; 722. a second positioning edge; 723. a connecting edge; 73. a fork; 74. a channel; 8. a plug cover; 81. a first wire inlet hole; 82. a clamping and connecting rod; 83. a clamping block; 84. a first guide bar; 85. a second guide bar; 851. a groove; 86. a third guide bar; 9. connecting sleeves; 91. a flexible jaw; 10. a wire sealing body assembly; 101. a first wire sealing body; 102. a second wire sealing body; 1021. a wire sealing cylinder; 11. the nut is tightened.

Detailed Description

The first embodiment is as follows: as shown in fig. 1 to 13, an electrical connector according to an embodiment of the present invention includes a main body 3, a plug 8 for closing the main body 3 on one side, the main body 3 has a first screw joint 31, a second screw joint 33 and a circular groove 32 formed in the middle thereof, a sealing ring 5 is installed at the circular groove 32, a rotating nut 4 is connected between the first screw joint 31 and the second screw joint 33, the main body 3 has three mounting grooves 311 uniformly formed at the end of the first screw joint 31 around an axis, a connection terminal 6 is accommodated in the mounting groove 311, the connection terminal 6 includes a base 61 and a pair of flanges 62 formed at both sides of the base 61, a spring plate 63 having an S-shaped cross section is disposed between the two flanges 62, a first wire inlet 81 is disposed at a position of the plug 8 corresponding to the mounting groove 311, a second wire inlet 331 corresponding to the mounting groove 311 is disposed at the end of the second screw joint 33 of the main body 3, the main body 3 is uniformly provided with three clamping grooves 312 around an axis at the end of the first threaded joint 31, the clamping grooves 312 are positioned at the same side of the corresponding mounting groove 311, the bottom of the clamping groove 312 of the first threaded joint 31 is provided with a buckling groove 313 vertically communicated with the clamping groove 312, the plug cover 8 is provided with a vertically extending clamping rod 82, the shape and the position of the clamping rod 82 correspond to the clamping grooves 312, the outer side of the clamping rod 82 is provided with a clamping block 83 capable of being clamped into the buckling groove 313, the main body 3 is provided with a yielding notch 314 between the mounting groove 311 and the clamping groove 312, the yielding notch 314 penetrates towards the outer side of the main body 3 along the long side direction of the section of the mounting groove 311 to form a yielding area 315, the yielding notch 314 extends outwards along the short side direction of the section of the mounting groove 311 to form an embedding groove 316, the shifting fork 7 is arranged at the yielding notch 314, the shifting fork 7 is composed of a shifting plate 71 and a fork, the fork frame 73 is provided with a rotary block 72 protruding outwards, a channel 74 is formed between the two fork frames 73, wherein the cross section of the rotary block 72 is a quadrangle which is formed by connecting a first positioning edge 721, a second positioning edge 722 and two connecting edges 723, and transition round corners are processed at the connecting part; during specific assembly, the rotary block 72 positioned on the outer side is arranged in the embedding groove 316, the rotary block 72 positioned on the inner side is limited by the wiring terminal 6, the fork frame 73 partially extends into the installation groove 311 and abuts against the upper side of the spring piece 63, and the clamping rod 82 penetrates through the passage 74; the spring plate 63 has a first arching portion 635 and a second arching portion 633 which are oppositely arranged, and a separating portion 634 connected between the first arching portion 635 and the second arching portion 633; the first arched portion 635 is bent by the first bending portion 636 and extends toward the opposite turned edge 62 to form a first end portion 637, and the second arched portion 633 is bent by the second bending portion 632 and extends toward the opposite turned edge 62 to form a second end portion 631; the flange 62 is a first flange 62a and a second flange 62b which are oppositely arranged, the first flange 62a comprises a first contact piece 622 formed by folding the base 61 side upwards and a first limit piece 621 formed by bending one end of the first contact piece 622 to the second flange 62b side; the second flange 62b includes a second contact piece 625 formed by folding the other side of the base 61 upward and a second limiting piece 624 formed by bending one end of the second contact piece 625 away from the first limiting piece 621 to one side of the first flange 62 a; the first and second arched portions 635 and 633 of the spring plate 63 are flat as a whole, the first and second arched portions 635 and 633 are attached to the inner side surfaces of the first and second contact pieces 622 and 625, and the first and second bent portions 636 and 632 are respectively embedded in the first and second limiting pieces 621 and 624, so that the first and second wiring cavities 64 and 65 are formed in the wiring terminal 6; the first flange 62a further includes a blocking piece 623, one end of the blocking piece 623 and the first contact piece 622 are an integral piece, and the other end extends towards one side of the second flange 62b and abuts against the spring piece 63; the first end 637 is punched into the first wiring cavity 64 to form a recess 6371, and the second end 631 is punched into the second wiring cavity 65 to form an introduction port 6311; the electric connector further comprises a connecting sleeve 9 and a locking nut 1, wherein the connecting sleeve 9 is in threaded connection with the main body 3, the connecting sleeve 9 is screwed on the first threaded joint 31, one end of the connecting sleeve 9 is provided with a flexible clamping jaw 91, a wire sealing body assembly 10 is accommodated in the flexible clamping jaw 91, the wire sealing body assembly 10 comprises a first wire sealing body 101 and a second wire sealing body 102, the second wire sealing body 102 is provided with a wire sealing barrel 1021, the wire sealing barrel 1021 can be clamped into an inner hole of the first wire sealing body 101, the connecting sleeve 9 is further screwed with a tightening nut 11 capable of drawing the flexible clamping jaw 91 in, and the locking nut 1 is screwed on the second threaded joint 33 and is provided with a sealing gasket 2; the second wire inlet 331 is divided into a main wire inlet 3311 and a branch wire hole 3312, and the main wire inlet 3311 and/or the branch wire hole 3312 are provided with a communicated wire-disconnecting hole 3313; first guide grooves 317 are uniformly formed in the circumference of the end face of the first threaded joint 31, the first guide grooves 317 are positioned on the outer side of the mounting groove 311, and the plug cover 8 is provided with a first guide rod 84 corresponding to the first guide grooves 317; a second guide groove 318 is formed in the middle of the end face of the first threaded joint 31, the cross section of the second guide groove 318 is in a regular triangle shape, the regular triangle shape is provided with a guide strip 3181 protruding inwards, the middle of the plug cover 8 is provided with a second guide rod 85 corresponding to the second guide groove 318, and the second guide rod 85 is provided with a groove 851 processed corresponding to the guide strip 3181; the first screw joint 31 is further uniformly provided with third guide grooves 319 in the abdicating area 315, and the plug 8 is provided with third guide rods 86 corresponding to the third guide grooves 319.

Example two: the structure of the electrical connector of this embodiment is similar to that of embodiment 1, except that two mounting grooves are included, and accordingly, the number of the wiring terminals, the shifting forks, the first wire inlet holes and the second wire inlet holes is also two.

This electric connector improves before, be equipped with the button on the gag, can make the spring leaf take place elastic deformation through pressing the button, when the equipment, need artifical to press the button continuously, press hard, long-term work produces certain harm to the finger, and the shift fork is through rotating and realizing the location by second location limit, the wire when the threading gets into first wiring chamber, need not give the effort that the shift fork lasts, do not hinder the hand, can realize many wires simultaneously and send the line toward first wiring intracavity, work efficiency improves.

When in specific use, the utility model is described with the attached drawings for the convenience of understanding;

connection of electrical component ends: the wire passes through lock nut in proper order, the sealed pad penetrates, and get into by the second entrance hole, exert external force through the screwdriver at the suture hole department and make second tip 631 take place elastic deformation, the wire stretches into in second wiring chamber 65 by the direction of introducing port 6311, extract the screwdriver, second tip 631 resumes deformation and makes the wire joint on the interface that second tip 631 and first contact piece 622 formed, lock nut is fixed main part and electrical components, sealed pad plays the waterproof leakproofness between electrical components and the electric connector.

Connection of power supply terminals: referring to fig. 9, 10, 12 and 13, a power line sequentially passes through the packing nut, the wire sealing body assembly and the connecting sleeve and penetrates through the first wire inlet hole to toggle the toggle plate of the fork towards the abdicating area, the rotary block rotates, the vertical positioning of the original first positioning edge 721 of the fork is changed into the vertical positioning of the second positioning edge 722, the lower part of the fork is enabled to act on the first end 637, the first end 637 is enabled to generate elastic deformation and open the inserting port of the first wiring cavity 64, after a lead is inserted into the first wiring cavity 64, the fork is manually reset, the first end 637 recovers to deform, so that the lead is clamped by the first end 637 and the second contact piece 625, then, the connecting sleeve is screwed on the main body, and the lead is compressed through the wire sealing body assembly and the packing nut, so that sealing and water proofing are realized.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An electric connector comprises a main body (3) and a plug cover (8) for sealing the main body (3) at one side, wherein the main body (3) is provided with a first threaded joint (31) and a second threaded joint (33) which are positioned at two ends and an annular groove (32) processed in the middle, a sealing ring (5) is arranged at the annular groove (32), a rotating nut (4) is connected between the first threaded joint (31) and the second threaded joint (33), the main body (3) is uniformly provided with a plurality of mounting grooves (311) at the end of the first threaded joint (31) around an axis, a wiring terminal (6) is accommodated in each mounting groove (311), each wiring terminal (6) comprises a base (61) and a pair of flanges (62) positioned at two sides of the base (61) which are integrally connected, and a spring leaf (63) with an S-shaped section is arranged between the two flanges (62), the gag (8) correspond the position of mounting groove (311) is equipped with first entrance hole (81), main part (3) be equipped with in second screwed joint (33) end with second entrance hole (331) that mounting groove (311) correspond, its characterized in that: the main body (3) is provided with a plurality of clamping grooves (312) uniformly around an axis at the end of the first threaded connector (31), the clamping grooves (312) are located on the same side of the corresponding mounting groove (311), the bottom of the clamping groove (312) of the first threaded connector (31) is provided with a buckling groove (313) vertically communicated with the clamping groove (312), the plug cover (8) is provided with a vertically extending clamping rod (82), the shape and the position of the clamping rod (82) correspond to the clamping groove (312), the outer side of the clamping rod (82) is provided with a clamping block (83) which can be clamped into the buckling groove (313), the main body (3) is provided with an abdicating notch (314) between the mounting groove (311) and the clamping groove (312), the abdicating notch (314) penetrates through the outer side of the main body (3) along the long side direction of the section of the mounting groove (311) to form an abdicating area (315), the abdicating notch (314) extends outwards along the short side direction of the section of the mounting groove (311) to form an embedded groove (316), a shifting fork (7) is mounted at the abdicating notch (314), the shifting fork (7) consists of a shifting plate (71) and fork frames (73) connected to two sides of the shifting plate (71), the fork frames (73) are provided with rotary blocks (72) protruding outwards, a channel (74) is formed between the two fork frames (73), wherein the section of the rotary block (72) is a quadrangle which is formed by connecting a first positioning edge (721), a second positioning edge (722) and two connecting edges (723) and is provided with a transitional fillet at the joint; during assembly, the rotary block (72) positioned on the outer side is arranged in the embedded groove (316), the rotary block (72) positioned on the inner side is limited by the wiring terminal (6), the fork frame (73) partially extends into the mounting groove (311) and abuts against the upper side of the spring piece (63), and the clamping rod (82) penetrates through the passage (74).

2. An electrical connector as defined in claim 1, wherein: the spring piece (63) is provided with a first arched part (635) and a second arched part (633) which are oppositely arranged, and a separation part (634) connected between the first arched part (635) and the second arched part (633); wherein, the first arched part (635) is bent by the first bending part (636) and extends to the opposite turned edge (62) to form a first end part (637), and the second arched part (633) is bent by the second bending part (632) and extends to the opposite turned edge (62) to form a second end part (631); the flanging (62) is a first flanging (62a) and a second flanging (62b) which are arranged oppositely, and the first flanging (62a) comprises a first contact piece (622) formed by upwards bending one side of the base (61) and a first limiting piece (621) formed by bending one end of the first contact piece (622) to one side of the second flanging (62 b); the second flanging (62b) comprises a second contact piece (625) formed by turning over the other side of the base (61) upwards and a second limiting piece (624) formed by bending one end, far away from the first limiting piece (621), of the second contact piece (625) to one side of the first flanging (62 a); the first and second arched parts (635, 633) of the spring piece (63) are flat as a whole, the first and second arched parts (635, 633) are attached to the inner side surfaces of the first and second contact pieces (622, 625), and the first and second bent parts (636, 632) are correspondingly embedded in the first and second limiting pieces (621, 624), so that the wiring terminal (6) is surrounded to form first and second wiring cavities (64, 65).

3. An electrical connector as defined in claim 2, wherein: the first flanging (62a) further comprises a blocking piece (623), one end of the blocking piece (623) and the first contact piece (622) are integrally formed, and the other end of the blocking piece (623) extends towards one side of the second flanging (62b) and abuts against the spring piece (63).

4. An electrical connector as defined in claim 3, wherein: the first end portion 637 is punched into a first wire connection cavity 64 to form a recessed portion 6371, and the second end portion 631 is punched into a second wire connection cavity 65 to form an introduction port 6311.

5. An electrical connector as claimed in any one of claims 1 to 4, wherein: the electric connector further comprises a connecting sleeve (9) and a locking nut (1), wherein the connecting sleeve (9) is in threaded connection with the main body (3), the connecting sleeve (9) is screwed on the first threaded joint (31), a flexible clamping jaw (91) is arranged at one end of the connecting sleeve (9), a wire sealing body assembly (10) is accommodated in the flexible clamping jaw (91), the wire sealing body assembly (10) comprises a first wire sealing body (101) and a second wire sealing body (102), a wire sealing barrel (1021) is arranged on the second wire sealing body (102), the wire sealing barrel (1021) can be clamped into an inner hole of the first wire sealing body (101), a tightening nut (11) capable of drawing in the flexible clamping jaw (91) is further screwed on the connecting sleeve (9), and the locking nut (1) is screwed on the second threaded joint (33) and is provided with a sealing gasket (2).

6. An electrical connector as claimed in any one of claims 1 to 4, wherein: the second wire inlet hole (331) is divided into a main wire inlet hole (3311) and a wire dividing hole (3312), and the main wire inlet hole (3311) and/or the wire dividing hole (3312) are provided with communicated wire disconnecting holes (3313).

7. An electrical connector as defined in claim 1, wherein: first guide grooves (317) are uniformly formed in the circumference of the end face of the first threaded connector (31), the first guide grooves (317) are located on the outer side of the mounting groove (311), and the plug cover (8) is provided with first guide rods (84) corresponding to the first guide grooves (317).

8. An electrical connector as defined in claim 1, wherein: the middle part of the end face of the first threaded joint (31) is provided with a second guide groove (318), the section of the second guide groove (318) is in the shape of a regular triangle, the regular triangle is provided with a guide strip (3181) protruding inwards, the middle part of the plug cover (8) is provided with a second guide rod (85) corresponding to the second guide groove (318), and the second guide rod (85) is provided with a groove (851) processed corresponding to the guide strip (3181).

9. An electrical connector as defined in claim 1, wherein: the first threaded joint (31) is further uniformly provided with third guide grooves (319) in the relief area (315), and the plug cover (8) is provided with third guide rods (86) corresponding to the third guide grooves (319).

10. An electrical connector as defined in claim 1, wherein: the number of the mounting grooves (311) is three or two, and correspondingly, the number of the wiring terminals (6), the shifting forks (7), the first wire inlet holes (81) and the second wire inlet holes (331) is also three or two.

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