CN114498528A - Cable branching tool and cable branching box - Google Patents

Abstract

The invention relates to a cable branching tool and a cable branching box. This cable branching tool, including the branch box, be equipped with a plurality of first chambeies that hold in the branch box, a plurality of first chambeies that hold each other do not communicate, the first branch line that holds the chamber and be used for holding the cable, a plurality of first chambeies and a plurality of branch line one-to-ones that hold, first chamber that holds is equipped with the first opening with external intercommunication, first opening is arranged in supplying the branch line to insert first chamber that holds, be equipped with a plurality of electrically conductive pieces on the outer peripheral face of branch box, insert first branch line that holds in the chamber can with electrically conductive piece electric connection, a plurality of electrically conductive pieces and a plurality of first chamber one-to-ones that hold. Therefore, after the cable is branched by the cable branching tool, the branch connection of the cable can be realized only by connecting the conductive parts with other equipment respectively, and the branch connection efficiency of the cable is greatly improved.

Description

Cable branching tool and cable branching box

Technical Field

The invention relates to the technical field of power equipment, in particular to a cable branching tool and a cable branching box.

Background

The multi-phase cable is a commonly used connection cable in a power system, for example, a three-phase cable has four branch lines, which are an a-phase connection line, a B-phase connection line, a C-phase connection line and a ground line. When a multi-phase cable is connected to a circuit, a plurality of branch lines need to be separately connected.

Cable breakout boxes are commonly used to separately connect branches of a multi-phase cable. During operation, a plurality of branch lines need to be connected inside the cable branch box through a crimping method. Because the cable branch box has limited internal space and compact arrangement of the crimping positions, the crimping operation is difficult, and the branch connection working efficiency of the multi-phase cable is low.

Disclosure of Invention

In view of the above, it is necessary to provide a cable branching tool and a cable branching box, which address the problem of inefficient cable branching connections.

The utility model provides a cable branching tool, includes the branch box, be equipped with a plurality of first chambeies that hold in the branch box, it is a plurality of the first chamber that holds each other, the first branch line that holds the chamber and be used for holding the cable, it is a plurality of the first chamber that holds corresponds with a plurality of the branch line one-to-one, the first chamber that holds is equipped with the first opening with external intercommunication, first opening is used for supplying the branch line inserts in the first chamber that holds, be equipped with a plurality of electrically conductive pieces on the outer peripheral face of branch box, insert in the first chamber that holds the branch line can with electrically conductive piece electric connection, it is a plurality of electrically conductive piece and a plurality of the first chamber one-to-one that holds.

The cable branching tool is characterized in that a plurality of first accommodating cavities are formed in the branch boxes for a plurality of branch lines of the cable, and a plurality of conductive pieces are arranged on the surfaces of the branch boxes, so that the branch lines can be respectively inserted into the first accommodating cavities and electrically connected with the conductive pieces, and therefore after the cable is branched through the cable branching tool, the cable can be branched and connected with other equipment only by connecting the conductive pieces with other equipment respectively, and the branching connection efficiency of the cable is greatly improved.

In one embodiment, the cable branching tool further includes a wire, a first end of the wire is electrically connected to the conductive member, a second end of the wire extends into the first receiving cavity, and the branch inserted into the first receiving cavity can be electrically connected to the second end of the wire.

In one embodiment, a conductive block is arranged at one end of the first accommodating cavity far away from the first opening, the second end of the lead is connected with the conductive block, and the branch line inserted into the first accommodating cavity can be connected with the conductive block.

In one embodiment, the conductive block is provided with a first through hole, a threaded hole and a branch top wire, the first through hole is communicated with the first accommodating cavity, the branch can penetrate through the first accommodating cavity and be inserted into the first through hole, the axial direction of the threaded hole is perpendicular to the axial direction of the first through hole, the threaded hole is communicated with the first through hole, the outer peripheral surface of the branch box is provided with a second through hole, the second through hole is communicated with the threaded hole, and the branch top wire can penetrate through the second through hole and be inserted into the threaded hole and abutted against the branch inserted into the first through hole.

A cable branch box comprises a branch box body, a plurality of conducting bars and a plurality of cable branch tools, wherein a plurality of second containing cavities are arranged in the branch box body and are arranged in parallel, second openings communicated with the outside are formed in the second containing cavities, the second openings are located on the same end face of the branch box body, the cable branch tools are inserted into the second containing cavities through the second openings, the second containing cavities correspond to the cable branch tools one to one, the conducting bars are located inside the branch box body, the conducting bars can be connected with the same-phase conducting pieces on any two different cable branch tools, and the conducting bars correspond to the conducting pieces one to one.

According to the cable branch box, the plurality of second accommodating cavities and the plurality of conducting bars are arranged in the branch box, so that the cables in any two cable branch tools can be electrically connected with different phase branches only by inserting the cable branch tools into the second accommodating cavities and connecting the plurality of conducting pieces on the cable branch tools with the conducting bars one by one. During use, the different-phase branches of the cable are inserted into the different first accommodating cavities firstly, so that the different-phase branches of the cable are electrically connected with the conductive parts on the branch box, then the cable branch tool is inserted into the second accommodating cavity, and the cable branch tools are inserted into the different second accommodating cavities, so that the different-phase branches of the cable branch tools are electrically connected with each other. Therefore, above-mentioned cable branch box easy operation, convenient to use can realize electric connection rapidly with between the homophase branch line of different cables fast, has greatly improved the efficiency that cable branch line branch was connected.

In one embodiment, the conductive bar includes a first connecting portion and a plurality of second connecting portions, the second connecting portions are located between two adjacent second accommodating cavities, the first connecting portions are electrically connected with the plurality of second connecting portions in sequence, and the second connecting portions are used for electrically connecting with the same-phase conductive members on the cable branching tool in two adjacent second accommodating cavities.

In one embodiment, the conductive member is an L-shaped conductive sheet, a first end of the L-shaped conductive sheet is attached to the outer peripheral surface of the branch box, a second end of the L-shaped conductive sheet is perpendicular to the axial direction of the branch box, and the second connecting portion includes two copper clips with opposite opening directions, and the copper clips are used for clamping the second ends corresponding to the L-shaped conductive sheets.

In one embodiment, the branch box of the cable branching tool is a cylindrical box, the second accommodating cavity is a cylindrical space, the second opening is located on an end face of the second accommodating cavity, a plurality of conductive pieces are arranged at intervals along the axial direction of the branch box, a plurality of conductive bars are arranged at intervals along the axial direction of the second accommodating cavity, the positions of the conductive pieces in the axial direction of the branch box correspond to the axial positions of the conductive bars in the second accommodating cavity in a one-to-one correspondence manner, and the branch box is inserted into the second accommodating cavity and is rotationally connected with the branch box relative to the second accommodating cavity, so that the branch box has a first state and a second state;

when the branch box is in the first state, the conductive piece is not connected with the conductive bar;

when the branch box is in the second state, the conductive piece is electrically connected with the conductive bar;

the rotation of the branch box can switch between the first state and the second state.

In one embodiment, the outer circumferential surface of the branch box is attached to the wall of the second accommodating chamber, a first groove is formed in the inner wall of the second accommodating chamber, the first groove penetrates through the branch box along the axial direction of the second accommodating chamber, the first groove is used for accommodating a plurality of the conductive components, a plurality of second grooves are formed in the inner wall of the second accommodating chamber, the second grooves are arranged along the circumferential direction of the second accommodating chamber, the plurality of second grooves are arranged at intervals along the axial direction of the second accommodating chamber, the plurality of second grooves correspond to the plurality of conductive components on the same cable branching tool one by one, one end of each second groove in the circumferential direction is communicated with the first groove, the bottom wall of the other end of each second groove in the circumferential direction is provided with a third through hole, the second connecting portion extends into the third through hole, and the plurality of conductive components are located in the first groove when the branch box is in the first state, when the branch box is in the second state, the conductive piece is positioned in the second groove and is connected with the second connecting part, and when the branch box is rotated, the conductive piece rotates to one end, provided with the third through hole, of the second groove from the position, communicated with the second groove, in the first groove;

or, the cable branch box further includes an insulating sleeve, the insulating sleeve is located in the second accommodating cavity and fixedly connected with the branch box, a third accommodating cavity is arranged inside the insulating sleeve, the third accommodating cavity is provided with a third opening communicated with the outside, the branch box is inserted into the third accommodating cavity through the third opening, a cavity wall of the third accommodating cavity is attached to the outer circumferential surface of the branch box, a first groove and a plurality of second grooves are arranged on the inner wall of the insulating sleeve, the first groove penetrates through the insulating sleeve along the axial direction of the insulating sleeve, the first groove is used for accommodating a plurality of the conductive pieces, the second grooves are arranged along the circumferential direction of the second accommodating cavity, the plurality of second grooves are arranged at intervals along the axial direction of the second accommodating cavity, and the plurality of second grooves correspond to the plurality of conductive pieces on the same cable branch tool one by one, one end of the second groove in the circumferential direction is communicated with the first groove, a third through hole is formed in the bottom wall of the other end of the second groove in the circumferential direction, the second connecting portion extends into the third through hole, the branch box is located in the first state, the plurality of conductive pieces are located in the first groove, the branch box is located in the second state, the conductive pieces are located in the second groove and connected with the second connecting portion, and when the branch box is rotated, the conductive pieces are rotated to one end of the third through hole, wherein the position of the first groove communicated with the second groove is located in the second groove.

In one embodiment, the branching box can be switched from the first state to the second state by rotating the branching box by 90 ° from the position in the first groove that communicates with the second groove.

In one embodiment, there are 2 conductive pieces, one of the conductive pieces is a first conductive piece, the other conductive piece is a second conductive piece, the first conductive piece and the second conductive piece are symmetrically arranged around the axis of the branch box, and the first conductive piece and the second conductive piece are respectively electrically connected with the conductive bar.

In one embodiment, the branch box further comprises a self-locking structure, one end of the branch box is inserted into the second accommodating cavity, the other end of the branch box extends out of the second opening, one part of the self-locking structure is fixed on the end face, provided with the second opening, of the branch box, and the other part of the self-locking structure is pressed against the peripheral surface of the branch box and used for limiting the rotation of the branch box relative to the branch box;

and/or one end of the branch box is inserted into the second accommodating cavity, the other end of the branch box extends out of the second opening, a rotary handle is arranged on the peripheral surface of the branch box extending out of the second opening, and the rotary handle is arranged along the radial direction of the branch box.

Drawings

FIG. 1 is an elevation view of a cable breakout tool according to one embodiment;

FIG. 2 is a cross-sectional view at A-A of the cable breakout tool of the embodiment of FIG. 1;

FIG. 3 is a bottom view of a cable breakout tool according to one embodiment;

FIG. 4 is a cross-sectional view of the cable breakout tool B-B of the embodiment of FIG. 3;

FIG. 5 is a front view of an embodiment of an insulative sleeve;

FIG. 6 is a cross-sectional view of the insulative sleeve of the embodiment of FIG. 5;

FIG. 7 is a bottom view of an embodiment of an insulative sleeve;

FIG. 8 is a schematic view of the assembly of the insulative sleeve with the cable breakout tool according to one embodiment;

FIG. 9 is a schematic view of the internal structure of an embodiment of the insulating sleeve assembled with a cable breakout tool;

FIG. 10 is a schematic diagram of the structure of a cable breakout box according to one embodiment;

FIG. 11 is a front view of a cable breakout enclosure according to one embodiment;

FIG. 12 is a cross-sectional view of the embodiment of FIG. 11 at D-D of the cable breakout box;

FIG. 13 is a cross-sectional view of the embodiment of FIG. 11 taken at E-E of the cable breakout box;

FIG. 14 is a cross-sectional view of the embodiment of FIG. 11 at F-F of the cable breakout box;

FIG. 15 is an enlarged view of a portion of the embodiment of FIG. 11 at cable breakout box G;

fig. 16 is a schematic view of the internal structure of the cable branch box in one embodiment.

Reference numbers: 100. a cable branch box; 10. a cable breakout tool; 11. a branch box; 12. a first accommodating chamber; 13. a conductive member; 131. a first conductive member; 132. a second conductive member; 14. a wire; 15. a conductive block; 16. branch line jackscrew; 17. a second through hole; 18. rotating the handle; 19. a first end cap; 20. an insulating sleeve; 21. a third accommodating chamber; 22. a first groove; 23. a second groove; 24. a third through hole; 25. a fixing member; 30. a cable; 31. a branch line; 40. a branch box; 41. a second accommodating chamber; 50. a conductive bar; 51. a first connection portion; 52. a second connecting portion; 521. a copper clip; 60. an insulating spacer; 61. a first screw; 62. a second screw; 70. a self-locking structure; 71. a U-shaped bracket; 72. a bolt; 73. a nut; 74. a spring.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

A cable breakout tool 10 and a cable breakout box 100 according to some embodiments of the present application are described in detail below with reference to the accompanying drawings.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, in an embodiment, a cable branching tool 10 is provided, which includes a branching box 11, a plurality of first accommodating cavities 12 are provided in the branching box 11, the plurality of first accommodating cavities 12 are not communicated with each other, the first accommodating cavities 12 are used for accommodating branch lines 31 of cables 30, the plurality of first accommodating cavities 12 correspond to the plurality of branch lines 31 one by one, the first accommodating cavities 12 are provided with first openings communicated with the outside, the first openings are used for allowing the branch lines 31 to be inserted into the first accommodating cavities 12, a plurality of conductive members 13 are provided on an outer peripheral surface of the branching box 11, the branch lines 31 inserted into the first accommodating cavities 12 can be electrically connected to the conductive members 13, and the plurality of conductive members 13 correspond to the plurality of first accommodating cavities 12 one by one.

In the cable branching tool 10, the plurality of first accommodating cavities 12 are formed in the branching box 11 for the plurality of branch lines 31 of the cable 30, and the plurality of conductive members 13 are formed on the surface of the branching box 11, so that the plurality of branch lines 31 can be respectively inserted into the first accommodating cavities 12 and electrically connected with the conductive members 13, and therefore after the cable 30 is branched by the cable branching tool 10, the cable 30 can be branched and connected only by respectively connecting the conductive members 13 with other equipment, and the branching connection efficiency of the cable 30 is greatly improved.

Specifically, as shown in fig. 4, in one embodiment, the cable branching tool 10 further includes a lead wire 14, a first end of the lead wire 14 is electrically connected to the conductive member 13, a second end of the lead wire 14 extends into the first accommodating cavity 12, and a branch wire 31 inserted into the first accommodating cavity 12 can be electrically connected to the second end of the lead wire 14.

Specifically, as shown in fig. 2 and 4, in one embodiment, an end of the first receiving cavity 12 away from the first opening is provided with a conductive block 15, a second end of the wire 14 is connected with the conductive block 15, and the branch line 31 inserted into the first receiving cavity 12 can be connected with the conductive block 15.

Specifically, as shown in fig. 2 and 4, in one embodiment, the conductive block 15 is provided with a wire connecting hole into which the second end of the wire 14 is inserted and a wire jack disposed perpendicular to the wire connecting hole, and the wire jack penetrates through an inner wall of the wire connecting hole to press the wire 14.

Specifically, as shown in fig. 1 and 2, in an embodiment, the conductive block 15 is provided with a first through hole, a threaded hole and a branch jackscrew 16, the first through hole is communicated with the first accommodating cavity 12, the branch line 31 can be inserted into the first through hole through the first accommodating cavity 12, the axial direction of the threaded hole is perpendicular to the axial direction of the first through hole, the threaded hole is communicated with the first through hole, the outer peripheral surface of the branch box 11 is provided with a second through hole 17, the second through hole 17 is communicated with the threaded hole, and the branch jackscrew 16 can be inserted into the threaded hole through the second through hole 17 and abutted against the branch line 31 inserted into the first through hole. Since the second through hole 17 is connected to the outside, the operator can rotate the branch line jackscrew 16 through the second through hole 17, thereby pressing or loosening the branch line 31 located in the first through hole. In the cable branching tool 10, in the use process, the branch line 31 of the cable 30 firstly penetrates through the first accommodating cavity 12 and is inserted into the first through hole, then the second through hole 17 rotates the branch line jackscrew 16 positioned in the threaded hole to enable the branch line 31 to be tightly pressed, so that the branch line 31 can be fixed in the first accommodating cavity 12 and electrically connected with the conductive piece 13 on the peripheral surface of the branching box 11, the operation is repeated, and the plurality of branch lines 31 of the cable 30 are respectively fixed in the plurality of first accommodating cavities 12, thereby realizing the branching operation of the cable 30, being simple in operation and convenient to use, and improving the branching efficiency of the cable 30.

More specifically, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, in one embodiment, the cable 30 is a three-phase cable, the branch lines 31 are 4, the first accommodating cavities 12 are 4, the conductive members 13 are 4, the conductive blocks 15 are 4, the conductive wires 14 are 4, the first through holes are 4, and the second through holes 17 are 4.

Further specifically, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, in an embodiment, the first accommodating chamber 12 is a cylindrical space, and a chamber wall of the first accommodating chamber 12 is attached to the circumferential surface of the branch line 31. The cylindrical first accommodation chamber 12 is advantageous in saving the space inside the branch box 11, so that a greater number of first accommodation chambers 12 can be disposed inside the branch box 11.

Further specifically, as shown in fig. 1, 2, 3, and 4, in an embodiment, a plurality of first accommodation chambers 12 are arranged in parallel, and a plurality of first openings are located on the same end face of the branch box 11.

More specifically, as shown in fig. 1, in an embodiment, the conductive member 13 is an L-shaped conductive sheet, a first end of the L-shaped conductive sheet is attached to the outer peripheral surface of the branch box 11, and a second end of the L-shaped conductive sheet is perpendicular to the axial direction of the branch box 11. The L-shaped conductive sheet facilitates the connection of the external terminal with the conductive member 13.

Further specifically, as shown in fig. 1, in one embodiment, the first end of the wire 14 and the first end of the L-shaped conductive sheet are connected by a crimping block.

Specifically, as shown in fig. 1, in one embodiment, there are 2 conductive members 13, one of the conductive members 13 is a first conductive member 131, the other conductive member 13 is a second conductive member 132, the first conductive member 131 and the second conductive member 132 are symmetrically arranged about the axis of the branch box 11, and the branch line 31 inserted into the first accommodating chamber 12 can be electrically connected to the first conductive member 131 and the second conductive member 132, respectively.

More specifically, as shown in fig. 1, in one embodiment, there are 2 conducting wires 14, one of the conducting wires 14 is a first conducting wire, the other conducting wire 14 is a second conducting wire, a first end of the first conducting wire is connected to the first conducting member 131, a second end of the first conducting wire is connected to the conducting block 15, a first end of the second conducting wire is connected to the second conducting member 132, and a second end of the second conducting wire is connected to the conducting block 15.

Further specifically, as shown in fig. 1, 2, 3 and 4, in one embodiment, the branch box 11 is an insulating branch box. The insulating branch box can effectively prevent the staff from electrocuting in the operation process.

Further specifically, as shown in fig. 1, in one embodiment, the branch box 11 is a cylindrical box. The cylindrical breakout box 11 effectively saves the space occupied by the cable breakout tool 10.

Further specifically, as shown in fig. 1, fig. 2, fig. 3, and fig. 4, in an embodiment, the branch box 11 includes a first housing and a first end cap 19, the first end cap 19 is detachably connected to the first housing, the first end cap 19 and the first housing define a first cavity, a plurality of second housings are disposed on the first end cap 19, a first accommodating cavity 12 is disposed in each of the second housings, the plurality of second housings correspond to the plurality of first accommodating cavities 12 one to one, a first opening of the first accommodating cavity 12 penetrates through the first end cap 19, and the plurality of second housings are located in the first cavity. The second housing is a cylindrical housing.

As shown in fig. 10 to 16, in an embodiment, a cable branch box 100 includes a branch box 40, a plurality of conductive bars 50 and a plurality of cable branch tools 10, wherein a plurality of second accommodating cavities 41 are provided in the branch box 40, the plurality of second accommodating cavities 41 are arranged in parallel, the second accommodating cavities 41 are provided with second openings communicating with the outside, the plurality of second openings are located on the same end surface of the branch box 40, the cable branch tools 10 are inserted into the second accommodating cavities 41 through the second openings, the plurality of second accommodating cavities 41 correspond to the plurality of cable branch tools 10 one by one, the conductive bars 50 are located inside the branch box 40, the conductive bars 50 can connect the same-phase conductive members 13 on any two different cable branch tools 10, and the plurality of conductive bars 50 correspond to the plurality of conductive members 13 one by one.

In the cable branch box 100, the plurality of second accommodating cavities 41 and the plurality of conductive bars 50 are arranged in the branch box 40, so that the cable branches 31 of the cables 30 in any two cable branch tools 10 can be electrically connected with each other only by inserting the cable branch tool 10 into the second accommodating cavities 41 and connecting the plurality of conductive pieces 13 on the cable branch tool 10 with the conductive bars 50 one by one. In use, the different phase branches 31 of the cables 30 are inserted into the different first accommodating cavities 12 to electrically connect the different phase branches 31 of the cables 30 with the conductive members 13 on the branch boxes 11, then the cable branching tool 10 is inserted into the second accommodating cavity 41, a plurality of cable branching tools 10 are inserted into the different second accommodating cavities 41, and the conductive bars 50 connect the same phase conductive members 13 on the different cable branching tools 10, so that the same phase branches 31 of the cables 30 can be electrically connected with each other. Therefore, the cable branch box 100 is simple to operate and convenient to use, and can quickly and rapidly realize the electrical connection between the in-phase branch lines 31 of different cables 30, thereby greatly improving the branch connection efficiency of the branch lines 31 of the cables 30.

Further specifically, as shown in fig. 10 to 16, in one embodiment, the number of the second accommodating cavities 41 is 5, and the number of the cable branching tools 10 is 5. That is, the cable branch box 100 can connect the in-phase branch lines 31 of the 5 cables 30 in series.

Further specifically, as shown in fig. 10 to 16, in one embodiment, the cable 30 is a three-phase cable, the branch lines 31 are 4, the first receiving cavity 12 is 4, the conductive members 13 are 4, and the conductive bars 50 are 4. The 4 conductor bars 50 correspond to the 4 branches 31 of the cable 30, respectively, each conductor bar 50 being capable of interconnecting the in-phase branches 31 of different cables 30.

More specifically, as shown in fig. 10 to 16, in one embodiment, the number of the second accommodating cavities 41 is 5, the number of the cable branching tools 10 is 5, the number of the cables 30 is three-phase cables, the number of the branch lines 31 is 4, the number of the first accommodating cavities 12 is 4, the number of the conductive members 13 is 4, and the number of the conductive bars 50 is 4. When there are 4 branch lines 31 on the cable 30 and the cable branch box 100 has 5 second accommodating cavities 41, the cable branch box 100 can connect the 4 branch lines 31 of the 5 cables 30 respectively. The plurality of branch lines 31 of each cable 30 are branch lines 31 of different phases, such as four branch lines 31 of a three-phase cable, i.e., a-phase connection line, a B-phase connection line, a C-phase connection line, and a ground line, and when the cables 30 are branched using the cable branching box 100, the a-phase connection lines of different cables 30 are connected to each other, the B-phase connection lines are connected to each other, the C-phase connection lines are connected to each other, and the ground lines are connected to each other, but the a-phase connection lines, the B-phase connection lines, the C-phase connection lines, and the ground lines are not connected to each other among the four branch lines 31 of different phases.

Specifically, as shown in fig. 12, 14 and 16, in one embodiment, the conductive bar 50 includes a first connecting portion 51 and a plurality of second connecting portions 52, the second connecting portions 52 are located between two adjacent second accommodating cavities 41, the first connecting portion 51 is electrically connected to the plurality of second connecting portions 52 in sequence, and the second connecting portions 52 are used for electrically connecting to the same-phase conductive members 13 on the cable branching tool 10 in two adjacent second accommodating cavities 41. The second connecting portions 52 are located between two adjacent second accommodating cavities 41, so that the number of the second connecting portions 52 is equal to the number of the second accommodating cavities 41 minus one.

Specifically, as shown in fig. 12, 14 and 16, in one embodiment, the number of the second accommodating cavities 41 is 5, the number of the cable branching tools 10 is 5, and the number of the second connecting portions 52 is 4.

Further specifically, as shown in fig. 10 to 16, in an embodiment, the cable 30 is a three-phase cable, the branch lines 31 are 4, the first accommodating cavities 12 are 4, the conductive members 13 are 4, the conductive bars 50 are 4, the first connecting portions 51 are 4, and the second connecting portions 52 are 16. That is, each conductive bar 50 is provided with 1 first connecting portion 51 and 4 second connecting portions 52, one first connecting portion 51 connects 4 second connecting portions 52 in series, and 4 second connecting portions 52 connect 5 cable branching tools 10 of 5 second accommodating cavities 41.

Specifically, as shown in fig. 12, 14 and 16, in one embodiment, the conductive bar 50 is fixed on the inner wall of the second receiving chamber 41.

Specifically, as shown in fig. 12, 14 and 16, in one embodiment, an insulating spacer 60 is disposed between the conductive bar 50 and the inner wall of the second receiving cavity 41. The insulating spacer 60 is coupled to the inner wall of the second receiving chamber 41 by a first screw 61. The conductive bar 50 is connected to the insulating washer 60 by a second screw 62. Insulating spacers 60 insulate contact bars 50 from branch box 40 to prevent an operator from contacting branch box 40 and causing an electrical shock.

Specifically, as shown in fig. 1 and fig. 16, in an embodiment, the conductive member 13 is an L-shaped conductive sheet, a first end of the L-shaped conductive sheet is attached to the outer peripheral surface of the branch box 11, a second end of the L-shaped conductive sheet is perpendicular to the axial direction of the branch box 11, the second connection portion 52 includes two copper clips 521 with opposite opening directions, and the copper clips 521 are used for clipping the second ends of the corresponding L-shaped conductive sheets. The two copper clamps 521 with opposite opening directions correspond to the two same-phase conductors 13 on the branch boxes 11 in the two adjacent second accommodating cavities 41, and the two copper clamps 521 are connected in series through the first connecting portion 51, so that the same-phase conductors 13 on the plurality of branch boxes 11 are connected in series.

Specifically, as shown in fig. 1, 4 and 14, in one embodiment, the branch box 11 of the cable branching tool 10 is a cylindrical box, the second accommodating chamber 41 is a cylindrical space, the second opening is located on an end surface of the second accommodating chamber 41, the plurality of conductive pieces 13 are arranged at intervals in an axial direction of the branch box 11, the plurality of conductive bars 50 are arranged at intervals in the axial direction of the second accommodating chamber 41, positions of the plurality of conductive pieces 13 in the axial direction of the branch box 11 correspond to positions of the plurality of conductive bars 50 in the axial direction of the second accommodating chamber 41 one by one, the branch box 11 is inserted into the second accommodating chamber 41 and is rotatably connected with the branch box 40 with respect to the second accommodating chamber 41, so that the branch box 11 has a first state and a second state; when the branch box 11 is in the first state, the conductive piece 13 is disconnected from the conductive bar 50; when the branch box 11 is in the second state, the conductive member 13 is electrically connected to the conductive bar 50; the rotating branch cassette 11 can be switched between a first state and a second state. The branch box 11 is rotatably connected with the branch box 40, so that in the using process, the conductive piece 13 on the branch box 11 can be aligned to the conductive bar 50 in the branch box 40 through rotation, the conductive piece 13 is electrically connected with the conductive bar 50, and the accuracy of the branch connection of the cable 30 is improved.

Specifically, as shown in fig. 1, 13 and 14, in an embodiment, an outer circumferential surface of the branch box 11 is attached to a cavity wall of the second accommodating cavity 41, an inner wall of the second accommodating cavity 41 is provided with a first groove 22, the first groove 22 penetrates through the branch box 40 along an axial direction of the second accommodating cavity 41, the first groove 22 is used for accommodating a plurality of conductive members 13, the inner wall of the second accommodating cavity 41 is provided with a plurality of second grooves 23, the second grooves 23 are arranged along a circumferential direction of the second accommodating cavity 41, the plurality of second grooves 23 are arranged at intervals along the axial direction of the second accommodating cavity 41, the plurality of second grooves 23 correspond to the plurality of conductive members 13 on the same cable branching tool 10 one by one, one end of the second grooves 23 in the circumferential direction is communicated with the first groove 22, the bottom wall of the other end of the second grooves 23 in the circumferential direction is provided with a third through hole 24, the second connecting portion 52 extends into the third through hole 24, the plurality of conductive members 13 are located in the first groove 22 when the branch box 11 is in the first state, when the branch box 11 is in the second state, the conductive member 13 is located in the second groove 23 and connected to the second connecting portion 52, and when the branch box 11 is rotated, the conductive member 13 rotates from the position in the first groove 22 communicating with the second groove 23 to the end of the second groove 23 where the third through hole 24 is provided. The first recess 22 is used to limit the insertion position of the branch box 11, the branch box 11 can be inserted into the second accommodating chamber 41 only when the conductive piece 13 on the branch box 11 is aligned with the opening of the first recess 22, the second recess 23 is used to limit the rotational orientation of the branch box 11 relative to the branch box 40, the branch box 11 can rotate relative to the branch box 40 only when the conductive piece 13 is located in the first recess 22 at the position corresponding to the second recess 23, and the second connecting portion 52 is located in the second recess 23 at the end far from the first recess 22, when the branch box 11 rotates along the second recess 23 to rotate to the end far from the first recess 22 on the second recess 23, that is, when the branch box 11 cannot rotate any more, the conductive piece 13 on the branch box 11 is just electrically connected to the second connecting portion 52. Therefore, the first and second grooves 22 and 23 ensure the accuracy of the connection of the conductive member 13 with the conductive bar 50.

Alternatively, as shown in fig. 5 to 9, in an embodiment, the cable branch box 100 further includes an insulating sleeve 20, the insulating sleeve 20 is located in the second accommodating cavity 41 and fixedly connected to the branch box 40, a third accommodating cavity 21 is provided inside the insulating sleeve 20, the third accommodating cavity 21 is provided with a third opening communicated with the outside, the branch box 11 is inserted into the third accommodating cavity 21 through the third opening, a cavity wall of the third accommodating cavity 21 is attached to an outer circumferential surface of the branch box 11, a first groove 22 and a plurality of second grooves 23 are provided on an inner wall of the insulating sleeve 20, the first groove 22 penetrates through the insulating sleeve 20 in an axial direction of the insulating sleeve 20, the first groove 22 is used for accommodating a plurality of conductive members 13, the second grooves 23 are provided in a circumferential direction of the second accommodating cavity 41, the plurality of second grooves 23 are arranged at intervals in the axial direction of the second accommodating cavity 41, the plurality of second grooves 23 correspond to the plurality of conductive members 13 on the same cable branch tool 10 one-to one, one end of the second groove 23 in the circumferential direction is communicated with the first groove 22, the bottom wall of the other end of the second groove 23 in the circumferential direction is provided with a third through hole 24, the second connecting part 52 extends into the third through hole 24, the plurality of conductive pieces 13 are positioned in the first groove 22 when the branch box 11 is in the first state, the conductive pieces 13 are positioned in the second groove 23 and connected with the second connecting part 52 when the branch box 11 is in the second state, and the conductive pieces 13 rotate to one end of the second groove 23, which is provided with the third through hole 24, from the position where the first groove 22 is communicated with the second groove 23 when the branch box 11 is rotated. The insulating sleeve 20 is used for ensuring the insulation isolation between the branch box 11 and the branch box 40, preventing an operator from contacting the branch box 40 to cause electric shock, and improving the safety of the branch connection of the cable 30. The first groove 22 and the second groove 23 are arranged on the insulating sleeve 20 at positions for limiting the rotation of the branch boxes 11, so that the accuracy of the connection between the conductive piece 13 and the conductive bar 50 is ensured. Because first recess 22, second recess 23 set up on insulating sleeve 20, avoid setting up first recess 22, second recess 23 on the inner wall of second holds chamber 41, reduce the processing degree of difficulty of second chamber 41 shape of holding.

More specifically, as shown in fig. 1, 14 and 16, in one embodiment, the insulating sleeve 20 is provided with a plurality of fixing members 25 on the outer peripheral surface and the end surface thereof, respectively, and the fixing members 25 are connected to the inner wall of the second accommodating chamber 41. The insulating sleeve 20 is fixedly connected with the branch box 40 through the fixing piece 25, so that the connection between the insulating sleeve 20 and the branch box 40 is more reliable.

Further specifically, as shown in fig. 1, 14 and 16, in one embodiment, the cable 30 is a three-phase cable, the branch lines 31 are 4, the first receiving cavity 12 is 4, the conductive member 13 is 4, the first recess 22 is 1, and the second recess 23 is 4.

Specifically, as shown in fig. 14, in one embodiment, rotating the branch cassette 11 by 90 ° from the position in the first groove 22 that communicates with the second groove 23 can switch the branch cassette 11 from the first state to the second state.

Specifically, as shown in fig. 1, 14 and 16, in one embodiment, there are 2 conductive members 13, one of the conductive members 13 is a first conductive member 131, the other conductive member 13 is a second conductive member 132, the first conductive member 131 and the second conductive member 132 are symmetrically arranged about the axis of the branch box 11, and the first conductive member 131 and the second conductive member 132 are electrically connected to the conductive bar 50, respectively.

Further specifically, as shown in fig. 1, 14 and 16, in an embodiment, there are two first grooves 22, two first grooves 22 are in one-to-one correspondence with the first conductive members 131 and the second conductive members 132, the two first grooves 22 are symmetrically arranged with respect to the axis of the branch box 11, the second grooves 23 are in one-to-one correspondence with the first conductive members 131 and the second conductive members 132, respectively, and the plurality of first grooves 22 are symmetrically arranged with respect to the axis of the branch box 11.

Further specifically, as shown in fig. 1, 14 and 16, in one embodiment, the cable 30 is a three-phase cable, the branch lines 31 are 4, the first accommodating cavity 12 is 4, the first conductive member 131 is 4, the second conductive member 132 is 4, the first recess 22 is 2, and the second recess 23 is 8. The 2 first recesses 22 accommodate the 4 first conductive members 131 and the 4 second conductive members 132, respectively. Each first groove 22 communicates with 4 second grooves 23.

Specifically, as shown in fig. 15, in an embodiment, the branch box further includes a self-locking structure 70, one end of the branch box 11 is inserted into the second accommodating cavity 41, the other end of the branch box 11 extends out of the second opening, a part of the self-locking structure 70 is fixed on an end surface of the branch box 40 on which the second opening is provided, and another part of the self-locking structure 70 is pressed against a circumferential surface of the branch box 11 to limit the rotation of the branch box 11 relative to the branch box 40.

Further specifically, as shown in fig. 15, in one embodiment, the self-locking structure 70 includes a U-shaped bracket 71, a bolt 72, a nut 73, and a spring 74. The bottom plate of the U-shaped support 71 is fixed on the end face of the branch box 40 provided with the second opening, the opening of the U-shaped support 71 faces the side far away from the branch box 40, the bolt 72 sequentially penetrates through two side plates of the U-shaped support 71 from the side far away from the branch box 11 and presses against the peripheral surface of the branch box 11, the nut 73 is fixed on the bolt 72, the bolt 72 is located on the side of the U-shaped support 71 far away from the branch box 11, the spring 74 is sleeved on the third screw, one end of the spring 74 presses against the U-shaped support 71, the other end of the spring 74 presses against the nut 73, and the spring 74 provides acting force for the screw to press against the branch box 11. When the branch box 11 needs to be rotated to switch the state, the nut 73 is loosened, the bolt 72 is pulled out, and the branch box 11 can be rotated. When the rotation of the branch box 11 is completed, the bolt 72 is tightened so that the bolt 72 abuts against the outer peripheral surface of the branch box 11, and the rotation of the branch box 11 with respect to the branch box 40 is restricted. The self-locking structure 70 is used for preventing the branch box 11 from being mistakenly touched and rotated to break the electrical connection with the conductive bar 50, and ensuring the reliability and stability of the branch connection of the cable 30.

Specifically, as shown in fig. 9, 11 and 12, in one embodiment, one end of the branch box 11 is inserted into the second accommodating chamber 41, the other end of the branch box 11 protrudes out of the second opening, a rotary handle 18 is provided on an outer circumferential surface of the branch box 11 protruding out of the second opening, and the rotary handle 18 is provided along a radial direction of the branch box 11. The operator may control the rotation of the breakout box 11 relative to the breakout box 40 by rotating the handle 18.

Specifically, as shown in fig. 10 and 11, in an embodiment, the branch box 40 includes a third housing and a second end cover, the second end cover is detachably connected to the third housing, a plurality of second accommodating cavities 41 are arranged in the third housing, and a plane of the second end cover is parallel to an axis of the second accommodating cavity 41. By providing the third housing and the second end cap, the second end cap can be easily opened to inspect the connection condition inside the cable branch box 100. In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (12)

1. The utility model provides a cable branching tool, its characterized in that, includes the branch box, be equipped with a plurality of first chambeies that hold in the branch box, it is a plurality of first chamber that holds each other is not communicated, first chamber that holds is used for holding the branch line of cable, and is a plurality of first chamber and a plurality of branch line one-to-one, first chamber that holds is equipped with the first opening with external intercommunication, first opening is used for supplying the branch line inserts in the first chamber that holds, be equipped with a plurality of electrically conductive pieces on the outer peripheral face of branch box, insert first chamber that holds in the branch line can with electrically conductive piece electric connection, it is a plurality of electrically conductive piece and a plurality of first chamber one-to-one that holds.

2. The cable breakout tool of claim 1, further comprising a wire having a first end electrically connected to the electrically conductive member and a second end extending into the first receiving cavity, wherein the branch inserted into the first receiving cavity is electrically connectable to the second end of the wire.

3. The cable breakout tool according to claim 2, wherein an end of the first receiving chamber remote from the first opening is provided with a conductive block, a second end of the wire is connected to the conductive block, and the branch inserted into the first receiving chamber can be connected to the conductive block.

4. The cable breakout tool according to claim 3, wherein the conductive block is provided with a first through hole, a threaded hole, and a branch jackscrew, the first through hole communicates with the first receiving chamber, the branch can be inserted into the first through hole through the first receiving chamber, an axial direction of the threaded hole is perpendicular to an axial direction of the first through hole, the threaded hole communicates with the first through hole, the outer circumferential surface of the breakout box is provided with a second through hole, the second through hole communicates with the threaded hole, and the branch jackscrew can be inserted into the threaded hole through the second through hole and abuts against the branch inserted into the first through hole.

5. A cable branch box is characterized by comprising a branch box, a plurality of conductive bars and a plurality of cable branching tools according to any one of claims 1 to 4, wherein a plurality of second accommodating cavities are arranged in the branch box, the second accommodating cavities are arranged in parallel, second openings communicated with the outside are formed in the second accommodating cavities, the second openings are located on the same end face of the branch box, the cable branching tools are inserted into the second accommodating cavities through the second openings, the second accommodating cavities correspond to the cable branching tools one by one, the conductive bars are located in the branch box, the conductive bars can be connected with the same-phase conductive members on any two different cable branching tools, and the conductive bars correspond to the conductive members one by one.

6. The cable branch box according to claim 5, wherein the conductive bar includes a first connecting portion and a plurality of second connecting portions, the second connecting portions are located between two adjacent second accommodating cavities, the first connecting portion is electrically connected to the plurality of second connecting portions in sequence, and the second connecting portions are used for electrically connecting to the same-phase conductive members on the cable branching tool in two adjacent second accommodating cavities.

7. The cable branch box according to claim 6, wherein the conductive member is an L-shaped conductive plate, a first end of the L-shaped conductive plate is attached to and connected with the outer peripheral surface of the branch box, a second end of the L-shaped conductive plate is perpendicular to the axial direction of the branch box, the second connecting portion includes two copper clamps with opposite opening directions, and the copper clamps are used for clamping the second ends corresponding to the L-shaped conductive plates.

8. The cable branch box according to claim 5, wherein the branch box of the cable branching tool is a cylindrical box, the second accommodating chamber is a cylindrical space, the second opening is located on an end surface of the second accommodating chamber, a plurality of the conductive members are arranged at intervals in an axial direction of the branch box, a plurality of the conductive bars are arranged at intervals in an axial direction of the second accommodating chamber, a position of the plurality of the conductive members in the axial direction of the branch box corresponds to an axial position of the plurality of the conductive bars in the second accommodating chamber in a one-to-one correspondence, the branch box is inserted into the second accommodating chamber and is rotatably connected with the branch box with respect to the second accommodating chamber, so that the branch box has a first state and a second state;

when the branch box is in the first state, the conductive piece is not connected with the conductive bar;

when the branch box is in the second state, the conductive piece is electrically connected with the conductive bar;

the rotation of the branch box can switch between the first state and the second state.

9. The cable branch box according to claim 8, wherein an outer circumferential surface of the branch box is attached to a wall of the second accommodating chamber, an inner wall of the second accommodating chamber is provided with a first groove, the first groove penetrates through the branch box along an axial direction of the second accommodating chamber, the first groove is used for accommodating a plurality of the conductive members, the inner wall of the second accommodating chamber is provided with a plurality of second grooves, the second grooves are arranged along a circumferential direction of the second accommodating chamber, the plurality of second grooves are arranged at intervals along the axial direction of the second accommodating chamber, the plurality of second grooves correspond to the plurality of conductive members on the same cable branch tool one by one, one circumferential end of each second groove is communicated with the first groove, the other circumferential end of each second groove is provided with a third through hole, and the second connecting portion extends into the third through hole, when the branch box is in the first state, the plurality of conductive pieces are positioned in the first groove, when the branch box is in the second state, the conductive pieces are positioned in the second groove and are connected with the second connecting part, and when the branch box is rotated, the conductive pieces rotate to one end, provided with the third through hole, of the second groove from the position, communicated with the second groove, in the first groove;

or, the cable branch box further includes an insulating sleeve, the insulating sleeve is located in the second accommodating cavity and fixedly connected with the branch box, a third accommodating cavity is arranged inside the insulating sleeve, the third accommodating cavity is provided with a third opening communicated with the outside, the branch box is inserted into the third accommodating cavity through the third opening, a cavity wall of the third accommodating cavity is attached to the outer circumferential surface of the branch box, a first groove and a plurality of second grooves are arranged on the inner wall of the insulating sleeve, the first groove penetrates through the insulating sleeve along the axial direction of the insulating sleeve, the first groove is used for accommodating a plurality of the conductive pieces, the second grooves are arranged along the circumferential direction of the second accommodating cavity, the plurality of second grooves are arranged at intervals along the axial direction of the second accommodating cavity, and the plurality of second grooves correspond to the plurality of conductive pieces on the same cable branch tool one by one, one end of the second groove in the circumferential direction is communicated with the first groove, a third through hole is formed in the bottom wall of the other end of the second groove in the circumferential direction, the second connecting portion extends into the third through hole, the branch box is located in the first state, the plurality of conductive pieces are located in the first groove, the branch box is located in the second state, the conductive pieces are located in the second groove and connected with the second connecting portion, and when the branch box is rotated, the conductive pieces are rotated to one end of the third through hole, wherein the position of the first groove communicated with the second groove is located in the second groove.

10. The cable breakout box of claim 9, wherein rotation of the breakout box 90 ° from a position in the first recess in communication with the second recess switches the breakout box from the first state to the second state.

11. The cable branch box of claim 8, wherein there are 2 of the conductive members, one of the conductive members is a first conductive member, the other conductive member is a second conductive member, the first conductive member and the second conductive member are symmetrically arranged about an axis of the branch box, and the first conductive member and the second conductive member are respectively electrically connected to the conductive bars.

12. The cable branch box according to claim 8, further comprising a self-locking structure, wherein one end of the branch box is inserted into the second accommodating cavity, the other end of the branch box extends out of the second opening, a part of the self-locking structure is fixed on an end face of the branch box on which the second opening is provided, and the other part of the self-locking structure is pressed against a peripheral surface of the branch box to limit rotation of the branch box relative to the branch box;

and/or one end of the branch box is inserted into the second accommodating cavity, the other end of the branch box extends out of the second opening, a rotary handle is arranged on the peripheral surface of the branch box extending out of the second opening, and the rotary handle is arranged along the radial direction of the branch box.

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