CN105470753A - Cable connector assembly - Google Patents

Abstract

The invention discloses a cable connector assembly, which comprises a plug socket and a plug connector, wherein the plug socket comprises a socket shell, an insulating frame connected in the socket shell and more than two electrode rings b which are equidistantly arranged in the insulating frame; the inner diameters of the electrode rings b are equal, each electrode ring b is connected with a contact finger strip, and the contact finger strip is provided with a plurality of elastic arms which are circumferentially arranged along the inner wall of the electrode ring b; the insulating frame is formed by connecting a plurality of annular insulating shells end to end, and each electrode ring b is clamped between two adjacent insulating shells; the plug connector comprises a plug shell and an insulating cylinder arranged on the plug shell, more than two electrode rings a are embedded in the outer wall of the front part of the insulating cylinder at equal intervals along the axial direction, and connecting wires a with the same number as the electrode rings a are embedded in the insulating cylinder along the axial direction; the outer diameters of the electrode rings a are equal. The invention reduces the processing cost, simplifies the assembly process and reduces the processing difficulty.

Description

Cable Connector Assembly

technical field

The invention belongs to the field of cable connectors, and in particular relates to a connection plug joint and a plug socket for communication cables.

Background technique

The existing connectors for multi-core communication cables generally use multi-core aviation connectors. The sockets of this type of multi-core aviation connectors are designed with multiple jacks, and the plug connectors are designed with sockets. The plug corresponding to each jack on the screen, multiple plugs and jacks need to be aligned before all the plugs and jacks can be effectively connected. Once one or more sets of jacks and plugs are not aligned, it will be easy. If the plug is deformed or damaged, after repeated plugging, it will affect the electrical connection performance, making the signal transmission unstable or even signal transmission failure. There is another type of connector in the form of an audio connector. The plug connector is designed with 3-4 coaxial electrode rings, which do not need to be strictly aligned when plugged into the socket, which overcomes the limitations of aviation connectors. Defects, but because the size of each electrode ring of the plug connector is different, when the number of signal lines of the connected cable is large, the number of plug connectors also increases accordingly, so that the electrode ring is more troublesome in processing and assembling, and the production cost is also higher.

Contents of the invention

The technical problem to be solved by the present invention is to provide a cable connection socket and connector structure with ingenious structural design, less processing parts and less manufacturing difficulty in view of the deficiencies in the prior art.

In order to achieve the purpose of the present invention, the following technical solutions are adopted: a cable connection socket, including a socket shell, an insulating frame connected in the socket shell, and more than two equidistantly installed in the insulating frame Electrode ring b;

The inner diameters of each of the electrode rings b are equal, and each of the electrode rings b is connected with a finger strip, and the finger strip has a plurality of elastic arms arranged circumferentially along the inner wall of the electrode ring b;

The insulating frame is composed of a plurality of annular insulating shells connected end to end, and each electrode ring b is clamped between two adjacent insulating shells;

Each electrode ring b is connected with a connecting wire b, and the insulating shell is formed with a wire through hole for the connecting wire b to pass through.

As a preference: the contact finger strip also includes an inner connection ring connected to one end of each elastic arm, an outer connection ring connected to the other end of each elastic arm, and a plurality of clamping positions connected to the outer connection ring away from the side of the elastic arm The clamping positioning piece is perpendicular to the outer connecting ring, and the clamping positioning piece is clamped between the electrode ring b and the insulating case.

As a preference: the socket housing is in a tubular shape as a whole, and the socket housing includes an integrally connected socket part and a threaded connector b, and more than two pin holes are formed on the socket part, and the threaded connector b The inner wall is formed with a detachment preventing groove b which cooperates with the insulating filling layer to fix the insulating frame in the plug shell.

Preferably: the insulating case includes a first insulating case, several second insulating cases and a third insulating case.

The first insulating shell, the second insulating shell and the third insulating shell are formed with wire through holes for the connecting wire b to pass through; the rear end of the first insulating shell is closed, and the outer periphery of the front end is formed with a positioning gap; the second The outer periphery of the rear end of the second insulating shell is formed with a positioning piece that fits into the positioning notch; the outer periphery of the rear end of the third insulating shell is formed with a positioning piece that fits into the positioning notch, and the rear end of the third insulating shell corresponds to the wire through the hole. The position is molded with a plug post.

As a preference: the front end of the insulating frame is pressed against the shoulder formed in the front part of the socket shell, and the insulating frame is fixed to the socket shell through the insulating filling layer;

The present invention also provides a plug connector for cable connection, which includes a plug shell and an insulating cylinder mounted on the plug shell, and two or more electrodes are equidistantly embedded in the outer wall of the front part of the insulating cylinder along the axial direction. ring a, the insulating cylinder is embedded with the same number of connecting wires a as the electrode ring a along the axial direction;

Each of the electrode rings a has the same outer diameter.

As a preference: the insulating cylinder includes an insulating support for positioning the electrode ring a and inserting the connecting wire a, and is used to fill the gap between the adjacent electrode ring a after the electrode ring a and the connecting wire a are installed The insulating filling layer of the interspace.

As a preference: the insulating support has a polygonal cylindrical structure, and each wall of the insulating support is formed with a wire groove for the insertion of the connecting wire a along the axial direction; the inner wall of the electrode ring a is formed with a front end connected to the connecting wire a For the connected wire connection part, electrode ring installation parts matching with the wire connection part are formed on the position corresponding to each guide groove on the insulating support, and each pole ring installation part is arranged equidistantly along the length direction of the insulating support. The distance between two adjacent electrode ring mounting parts is equal to the distance between two adjacent electrode rings a.

As a preference: the plug housing is tubular, and the plug housing includes a socket part, a shoulder part and a threaded connector a which are integrally connected in sequence; the outer wall of the socket part is formed with a positioning groove for cooperating with the latch, and The sealing ring installation groove for installing the sealing ring; the inner wall of the threaded joint a is formed with a detachment prevention groove a that cooperates with the insulating filling layer to fix the insulating bracket on the plug shell.

As a preference: the front end of the insulating cylinder is connected with an electrode head, the rear end of the electrode head is integrally connected with an electrode column, and the axis of the insulating support is formed with a central hole for the electrode column to pass through. The rear end is connected with terminal a.

As a preference: the insulating filling layer is thermoplastic or gelatin.

The present invention also provides a cable connector assembly, including a socket socket and a socket connector. The socket socket includes a socket shell, an insulating frame connected in the socket shell, and equidistantly installed in the insulating frame. More than two electrode rings b;

The inner diameters of each of the electrode rings b are equal, and each of the electrode rings b is connected with a finger strip, and the finger strip has a plurality of elastic arms arranged circumferentially along the inner wall of the electrode ring b;

The insulating frame is composed of a plurality of annular insulating shells connected end to end, and each electrode ring b is clamped between two adjacent insulating shells;

Each electrode ring b is connected with a connecting wire b, and the insulating shell is formed with wire perforations for the connecting wire b to pass through;

The stylus also includes an inner connecting ring connecting one end of each elastic arm, an outer connecting ring connecting the other end of each elastic arm, and a plurality of clamping positioning pieces connected on the outer connecting ring away from the side of the elastic arm. The tight positioning piece is perpendicular to the outer connecting ring, and the clamping positioning piece is clamped between the electrode ring b and the insulating shell;

The socket housing is tubular as a whole, and the socket housing includes an integrally connected socket part and a threaded connector b. More than two pin holes are formed on the socket part, and the inner wall of the threaded connector b is formed with Cooperate with the insulating filling layer to fix the insulating frame in the detachment prevention groove b in the plug shell;

The insulating case includes a first insulating case, several second insulating cases and a third insulating case;

The first insulating shell, the second insulating shell and the third insulating shell are formed with wire through holes for the connecting wire b to pass through; the rear end of the first insulating shell is closed, and the outer periphery of the front end is formed with a positioning gap; the second The outer periphery of the rear end of the second insulating shell is formed with a positioning piece that fits into the positioning notch; the outer periphery of the rear end of the third insulating shell is formed with a positioning piece that fits into the positioning notch, and the rear end of the third insulating shell corresponds to the wire through the hole. The position is formed with a plug-in column;

The front end of the insulating frame is pressed against the shoulder formed in the front part of the socket shell, and the insulating frame is fixed to the socket shell through the insulating filling layer;

The plug connector includes a plug housing and an insulating cylinder mounted on the plug housing, and more than two electrode rings a are equidistantly embedded in the front outer wall of the insulating cylinder, and the insulating cylinder The same number of connecting wires as the electrode ring a is embedded in the body along the axial direction;

Each of the electrode rings a has the same outer diameter;

The insulating cylinder includes an insulating support for positioning the electrode ring a and inserting the connecting wire a, and an insulating support for filling the gap between adjacent electrode rings a after the electrode ring a and the connecting wire a are installed. insulating filling layer;

The insulating support has a polygonal cylindrical structure, and each wall surface of the insulating support is axially formed with a wire groove for the connection wire a to be placed in; the inner wall of the electrode ring a is formed with a wire connected to the front end of the connecting wire a As for the connection part, electrode ring installation parts matching with the wire connection part are formed on the position corresponding to each guide groove on the insulating support, and each pole ring mounting part is arranged equidistantly along the length direction of the insulating support. The distance between two adjacent electrode ring mounting parts is equal to the distance between two adjacent electrode rings a;

The plug housing is tubular, and the plug housing includes a socket part, a shoulder part and a threaded connector a which are integrally connected in sequence; the outer wall of the socket part is formed with a positioning groove for cooperating with the latch, and for installing The sealing ring installation groove of the sealing ring; the inner wall of the threaded joint a is formed with a detachment prevention groove a that cooperates with the insulating filling layer to fix the insulating bracket on the plug shell;

The front end of the insulating cylinder is connected with an electrode head, and the rear end of the electrode head is integrally connected with an electrode column. The axis of the insulating support is formed with a central hole for the electrode column to pass through. connected with terminal a;

The insulating filling layer is thermoplastic or gelatin.

Compared with the prior art, the beneficial effect of the present invention is that: because each electrode ring a of the plug connector has the same size, each size of the plug connector only needs to process a single size electrode ring a, which reduces the processing cost. It also simplifies the assembly process and reduces the difficulty of processing.

The electrode ring b of the socket socket is fixed and insulated by a spliced insulating frame, which is convenient for assembly, and at the same time, elastic contact finger strips are added, so that after the plug connector is connected to the socket socket, the electrode ring a and the contact finger strip Close contact, good electrical conductivity.

Description of drawings

Fig. 1 is a schematic structural diagram of a cable connector assembly.

Fig. 2 is a schematic diagram of the structure of the plug connector.

Fig. 3 is a schematic diagram of the structural state of the plug joint without forming an insulating filling layer.

Fig. 4 is a schematic cross-sectional structural view of the plug housing.

Fig. 5 is a schematic diagram of the installation structure of the electrode ring a, the connecting wire a and the electrode head.

FIG. 6 is a schematic structural view of the electrode ring a.

Fig. 7 is a schematic diagram of the structure of the socket.

Fig. 8 is a schematic cross-sectional structural view of the socket housing.

FIG. 9 is a schematic diagram of the installation structure of the electrode ring b and the connecting wire b.

Fig. 10 is a schematic structural diagram of the first insulating case.

11 and 12 are schematic structural views of the second insulating case.

Fig. 13 is a schematic structural diagram of a third insulating case.

Fig. 14 is a schematic diagram of the structure of the finger strip.

1. Plug connector; 11. Plug shell; 111. Protruding shoulder; 112. Threaded connector a; Terminal a; 13, insulating cylinder; 130, insulating support; 131, central jack; 132, electrode ring installation part; 133, wire groove; 14, electrode head; 141, electrode column; 15, electrode ring a; 151 , wire connecting part; 16, connecting wire a;

2. Socket socket; 21. Socket shell; 211. Socket part; 2111. Pin hole; 212. Threaded connector b; 2121. Detachment groove b; 22. Terminal b; , the second insulating shell; 25, the connecting wire b; 26, the electrode ring b; 27, the finger bar; 271, the inner connecting ring; 272, the elastic arm; 273, the outer connecting ring; 274, the clamping positioning piece; 28, The third insulating shell; 201, the positioning gap; 202, the electrode ring installation opening; 203, the wire perforation; 204, the positioning piece; 205, the plug-in column.

detailed description

A detailed description will be given below of specific embodiments of the present invention according to the accompanying drawings.

Example 1

As shown in Figures 1 to 14, a cable connector assembly described in this embodiment includes a receptacle 2 and a plug connector 1, and the receptacle includes a socket shell 21 connected to the socket shell The insulating frame inside, and more than two electrode rings b26 equidistantly installed in the insulating frame.

Each of the electrode rings b has the same inner diameter, and each electrode ring b is connected with a contact finger bar 27, and the contact finger bar has a plurality of elastic arms 272 arranged circumferentially along the inner wall of the electrode ring b.

The insulating frame is composed of a plurality of annular insulating shells connected end to end, and each electrode ring b is clamped between two adjacent insulating shells.

Each electrode ring b is connected with a connecting wire b25, and the insulating shell is formed with a wire through hole 203 for the connecting wire b to pass through.

The stylus also includes an inner connecting ring 271 connecting one end of each elastic arm, an outer connecting ring 273 connecting the other end of each elastic arm, and a plurality of clamping positioning pieces connected on the outer connecting ring away from the side of the elastic arm 274. The clamping positioning piece is perpendicular to the outer connecting ring, and the clamping positioning piece is clamped between the electrode ring b and the insulating case.

The socket shell is tubular as a whole, and the socket shell includes an integrally connected socket part 211 and a threaded connector b212. More than two pin holes 2111 are formed on the socket part, and the inner wall of the threaded connector b A detachment prevention groove b2121 is formed to cooperate with the insulating filling layer to fix the insulating frame in the plug shell.

The insulating shell includes a first insulating shell 23, several second insulating shells 24 and a third insulating shell 28.

The outer periphery of the first insulating shell, the second insulating shell and the third insulating shell is formed with a wire through hole 203 for the connecting wire b to pass through; the rear end of the first insulating shell is closed, and a positioning gap 201 is formed on the outer periphery of the front end; The outer periphery of the rear end of the second insulating shell is formed with a positioning piece 204 that is engaged with the positioning notch; The positions where the wires pass through are formed with plug posts 205 .

The front end of the insulating frame is pressed against the shoulder formed in the front part of the socket shell, and the insulating frame is fixed with the socket shell through the insulating filling layer.

The plug connector includes a plug housing 11 and an insulating cylinder 13 mounted on the plug housing, and more than two electrode rings a15 are equidistantly embedded in the front outer wall of the insulating cylinder. The same number of connecting wires a16 as the electrode ring a is embedded in the insulating cylinder along the axial direction.

Each of the electrode rings a has the same outer diameter.

The insulating cylinder includes an insulating support 130 for positioning the electrode ring a15 and inserting the connecting wire a, and is used to fill the gap between adjacent electrode rings a after the electrode ring a and the connecting wire a are installed. insulating filling layer.

The insulating support has a polygonal cylindrical structure, and each wall of the insulating support is axially formed with a wire groove 133 for the insertion of the connecting wire a; the inner wall of the electrode ring a is formed with a front end connected to the connecting wire a. The wire connection part 151 is formed with an electrode ring installation part 132 matching with the wire connection part at the position corresponding to each guide groove on the insulating support, and each pole ring installation part is arranged equidistantly along the length direction of the insulation support. The distance between two adjacent electrode ring mounting parts is equal to the distance between two adjacent electrode rings a.

The plug shell is tubular, and the plug shell includes a socket part 113, a shoulder part and a threaded connector a112 which are integrally connected in sequence; the outer wall of the socket part is formed with a positioning groove 1131 for cooperating with the latch, and a The sealing ring installation groove 1132 is used to install the sealing ring; the inner wall of the threaded joint a is formed with a detachment prevention groove a1121 which cooperates with the insulating filling layer to fix the insulating bracket on the plug shell.

The front end of the insulating cylinder is connected with an electrode head 14, and the rear end of the electrode head is integrally connected with an electrode column 141. The center of the insulating support shaft is formed with a central jack 131 for the electrode column to pass through. The terminal a12 is connected to the rear end.

The insulating filling layer is thermoplastic or gelatin.

Example 2

As shown in Figures 7 to 14, this embodiment is a cable connection socket, including a socket 2 and a plug connector 1, and the socket includes a socket shell 21, which is connected in the socket shell The insulating frame, and more than two electrode rings b26 equidistantly installed in the insulating frame.

Each of the electrode rings b has the same inner diameter, and each electrode ring b is connected with a contact finger bar 27, and the contact finger bar has a plurality of elastic arms 272 arranged circumferentially along the inner wall of the electrode ring b.

The insulating frame is composed of a plurality of annular insulating shells connected end to end, and each electrode ring b is clamped between two adjacent insulating shells.

Each electrode ring b is connected with a connecting wire b25, and the insulating shell is formed with a wire through hole 203 for the connecting wire b to pass through.

The stylus also includes an inner connecting ring 271 connecting one end of each elastic arm, an outer connecting ring 273 connecting the other end of each elastic arm, and a plurality of clamping positioning pieces connected on the outer connecting ring away from the side of the elastic arm 274. The clamping positioning piece is perpendicular to the outer connecting ring, and the clamping positioning piece is clamped between the electrode ring b and the insulating case.

The socket shell is tubular as a whole, and the socket shell includes an integrally connected socket part 211 and a threaded connector b212. More than two pin holes 2111 are formed on the socket part, and the inner wall of the threaded connector b A detachment prevention groove b2121 is formed to cooperate with the insulating filling layer to fix the insulating frame in the plug shell.

The insulating shell includes a first insulating shell 23 , several second insulating shells 24 and a third insulating shell 28 .

The outer periphery of the first insulating shell, the second insulating shell and the third insulating shell is formed with a wire through hole 203 for the connecting wire b to pass through; the rear end of the first insulating shell is closed, and a positioning gap 201 is formed on the outer periphery of the front end; The outer periphery of the rear end of the second insulating shell is formed with a positioning piece 204 that is engaged with the positioning notch; The positions where the wires pass through are formed with plug posts 205 .

The front end of the insulating frame is pressed against the shoulder formed in the front part of the socket shell, and the insulating frame is fixed with the socket shell through the insulating filling layer.

Example 3

As shown in Figures 1 to 6, the present embodiment is a plug connector for cable connection. The plug connector includes a plug housing 11 and an insulating cylinder 13 mounted on the plug housing. The front part of the insulating cylinder Two or more electrode rings a15 are equidistantly embedded on the outer wall in the axial direction, and the same number of connecting wires a16 as the number of electrode rings a is embedded in the insulating cylinder along the axial direction.

Each of the electrode rings a has the same outer diameter.

The insulating cylinder includes an insulating support 130 for positioning the electrode ring a15 and inserting the connecting wire a, and is used to fill the gap between adjacent electrode rings a after the electrode ring a and the connecting wire a are installed. insulating filling layer.

The insulating support has a polygonal cylindrical structure, and each wall of the insulating support is axially formed with a wire groove 133 for the insertion of the connecting wire a; the inner wall of the electrode ring a is formed with a front end connected to the connecting wire a. The wire connection part 151 is formed with an electrode ring installation part 132 matching with the wire connection part at the position corresponding to each guide groove on the insulating support, and each pole ring installation part is arranged equidistantly along the length direction of the insulation support. The distance between two adjacent electrode ring mounting parts is equal to the distance between two adjacent electrode rings a.

The plug shell is tubular, and the plug shell includes a socket part 113, a shoulder part and a threaded connector a112 which are integrally connected in sequence; the outer wall of the socket part is formed with a positioning groove 1131 for cooperating with the latch, and a The sealing ring installation groove 1132 is used to install the sealing ring; the inner wall of the threaded joint a is formed with a detachment prevention groove a1121 which cooperates with the insulating filling layer to fix the insulating bracket on the plug shell.

The front end of the insulating cylinder is connected with an electrode head 14, and the rear end of the electrode head is integrally connected with an electrode column 141. The center of the insulating support shaft is formed with a central jack 131 for the electrode column to pass through. The terminal a12 is connected to the rear end.

The insulating filling layer is thermoplastic or gelatin.

Claims (10)

1. cable connects a plug socket, it is characterized in that:

Include a jack housing, be connected to the insulating frame in jack housing, and be equidistantly arranged on the plural electrode retaining collar b in insulating frame;

Described in each, the internal diameter of electrode retaining collar b is equal, and each described electrode retaining collar b is connected with a fingertip bar, and fingertip bar has multiple along electrode retaining collar b inwall elastic arm circumferentially;

Described insulating frame is formed by the insulation shell of multiple annular is end to end, and each electrode retaining collar b is clamped between adjacent two insulation shells;

Each electrode retaining collar b is connected with and connects wire b, described insulation shell forms the wire perforation of passing for connection wire b.

2. a kind of cable as claimed in claim 1 connects plug socket, it is characterized in that: described fingertip bar also includes the interior clamping ring that connects each elastic arm one end, connect the outer clamping ring of each elastic arm other end, and the multiple clamping and positioning sheets be connected to away from elastic arm side on outer clamping ring, clamping and positioning sheet and outer clamping ring perpendicular, and clamping and positioning sheet is clamped between electrode retaining collar b and insulation shell.

3. a kind of cable as claimed in claim 1 connects plug socket, it is characterized in that: described insulating frame front end pushes against with the shoulder block taking shape in front portion in jack housing, and insulating frame is fixed by insulation fill stratum and jack housing; Described jack housing entirety in a tubular form, described jack housing includes socket part and the threaded connector b of one connection, described socket part forms plural pin hole, and described threaded connector b inwall forms the dislocation preventing slot b coordinating with described insulation fill stratum and to be fixed on by insulating frame in plug body.

4. a kind of cable as claimed in claim 1 connects plug socket, it is characterized in that: described insulation shell includes first insulation shell, several second insulation shells and the 3rd insulation shell;

Described first insulation shell, the second insulation shell and the 3rd insulation shell periphery form the wire perforation of passing for connection wire b; Described first insulation shell back-end closure, and periphery, front end forms locating notch; Described second periphery, insulation shell rear end forms the spacer coordinating clamping with locating notch; Described 3rd periphery, insulation shell rear end forms the spacer coordinating clamping with locating notch, and the position of the 3rd insulation shell rear end corresponding lead perforation forms inserting column.

5. cable connects a connection-peg, it is characterized in that:

Include a plug body and be arranged on an insulation cylinder on plug body, the anterior outer wall of described insulation cylinder is equidistantly embedded with plural electrode retaining collar a vertically, in described insulation cylinder, is embedded with the connection wire a with electrode retaining collar a equal number vertically;

Described in each, electrode retaining collar a external diameter is equal.

6. a kind of cable as claimed in claim 5 connects connection-peg, it is characterized in that: described insulation cylinder includes to locate described electrode retaining collar a and plugs the insulating support of described connection wire a, and in order to fill the insulation fill stratum in space between adjacent electrode ring a after electrode retaining collar a and connection wire a installs.

7. a kind of cable as claimed in claim 5 connects connection-peg, it is characterized in that: described insulating support is polygon column structure, each wall of insulating support forms vertically the metallic channel of inserting for connection wire a; Described electrode retaining collar a inwall form one with the described wire interconnecting piece being connected wire a front end and connecting, on described insulating support, the position of each gathering sill corresponding forms the electrode retaining collar installation portion coordinated with wire interconnecting piece, and electrode retaining collar installation portion described in each is along insulating support length direction equidistant placement; Distance between adjacent two electrode retaining collar installation portions is equal with the distance of adjacent two electrode retaining collar a.

8. a kind of cable as claimed in claim 5 connects connection-peg, it is characterized in that: in a tubular form, plug body comprises Plug Division that one successively connects, convex shoulder and threaded connector a to described plug body; Described Plug Division outer wall forms in order to coordinate locking location notch with latch, and in order to install the sealing ring mounting groove of sealing ring; Described threaded connector a inwall forms the dislocation preventing slot a coordinating with described insulation fill stratum and to be fixed on by insulating support on plug body; Described insulation fill stratum is thermoplastics or condensation glue.

9. a kind of cable as claimed in claim 5 connects connection-peg, it is characterized in that: the leading section of described insulation cylinder is connected with an electrode tip, the rear end of electrode tip is connected with an electrode column, described insulating support axle center forms the center hub that power supply pole passes, and the rearward end of electrode column is connected with binding post a.

10. a cable connector assembly, is characterized in that: include plug socket and connection-peg, and described plug socket includes a jack housing, is connected to the insulating frame in jack housing, and is equidistantly arranged on the plural electrode retaining collar b in insulating frame;

Described in each, the internal diameter of electrode retaining collar b is equal, and each described electrode retaining collar b is connected with a fingertip bar, and fingertip bar has multiple along electrode retaining collar b inwall elastic arm circumferentially;

Described insulating frame is formed by the insulation shell of multiple annular is end to end, and each electrode retaining collar b is clamped between adjacent two insulation shells;

Each electrode retaining collar b is connected with and connects wire b, described insulation shell forms the wire perforation of passing for connection wire b;

Described fingertip bar also includes the interior clamping ring that connects each elastic arm one end, connect the outer clamping ring of each elastic arm other end, and the multiple clamping and positioning sheets be connected to away from elastic arm side on outer clamping ring, clamping and positioning sheet and outer clamping ring perpendicular, and clamping and positioning sheet is clamped between electrode retaining collar b and insulation shell;

Described insulating frame front end pushes against with the shoulder block taking shape in front portion in jack housing, and insulating frame is fixed by insulation fill stratum and jack housing;

Described jack housing entirety in a tubular form, described jack housing includes socket part and the threaded connector b of one connection, described socket part forms plural pin hole, and described threaded connector b inwall forms the dislocation preventing slot b coordinating with described insulation fill stratum and to be fixed on by insulating frame in plug body;

Described insulation shell includes first insulation shell, several second insulation shells and the 3rd insulation shell;

Described first insulation shell, the second insulation shell and the 3rd insulation shell periphery form the wire perforation of passing for connection wire b; Described first insulation shell back-end closure, and periphery, front end forms locating notch; Described second periphery, insulation shell rear end forms the spacer coordinating clamping with locating notch; Described 3rd periphery, insulation shell rear end forms the spacer coordinating clamping with locating notch, and the position of the 3rd insulation shell rear end corresponding lead perforation forms inserting column;

Described connection-peg includes a plug body and is arranged on an insulation cylinder on plug body, the anterior outer wall of described insulation cylinder is equidistantly embedded with plural electrode retaining collar a vertically, in described insulation cylinder, is embedded with the connection wire with electrode retaining collar a equal number vertically;

Described in each, electrode retaining collar a external diameter is equal;

Described insulation cylinder includes to locate described electrode retaining collar a and plugs the insulating support of described connection wire a, and in order to fill the insulation fill stratum in space between adjacent electrode ring a after electrode retaining collar a and connection wire a installs;

Described insulating support is polygon column structure, each wall of insulating support forms vertically the metallic channel of inserting for connection wire a; Described electrode retaining collar a inwall form one with the described wire interconnecting piece being connected wire a front end and connecting, on described insulating support, the position of each gathering sill corresponding forms the electrode retaining collar installation portion coordinated with wire interconnecting piece, polar ring installation portion described in each is along insulating support length direction equidistant placement, and the distance between adjacent two electrode retaining collar installation portions is equal with the distance of adjacent two electrode retaining collar a;

In a tubular form, plug body comprises Plug Division that one successively connects, convex shoulder and threaded connector a to described plug body; Described Plug Division outer wall forms in order to coordinate locking location notch with latch, and in order to install the sealing ring mounting groove of sealing ring; Described threaded connector a inwall forms the dislocation preventing slot a coordinating with described insulation fill stratum and to be fixed on by insulating support on plug body;

The leading section of described insulation cylinder is connected with an electrode tip, and the rear end of electrode tip is connected with an electrode column, and described insulating support axle center forms the center hub that power supply pole passes, and the rearward end of electrode column is connected with binding post a;

Described insulation fill stratum is thermoplastics or condensation glue.