CN109510160B

CN109510160B - Cable branch box with indication

Info

Publication number: CN109510160B
Application number: CN201811072434.7A
Authority: CN
Inventors: 赵成雷; 陈正茂; 张传荣
Original assignee: GUANGDONG QIUJING ELECTRICAL Ltd Co
Current assignee: GUANGDONG QIUJING ELECTRICAL Ltd Co
Priority date: 2018-09-14
Filing date: 2018-09-14
Publication date: 2020-03-27
Anticipated expiration: 2038-09-14
Also published as: CN109510160A

Abstract

The invention discloses a cable branch box with an indication function, wherein a conductive bar is arranged in a box body, the surface of the conductive bar is covered with an insulating layer, each conductive fulcrum of the conductive bar is conductively connected with a conductive bolt which penetrates through the insulating layer in a protruding mode, a wiring terminal of a cable is sleeved outside the conductive bolt and is placed on the insulating layer around the conductive fulcrum, a wiring fastening device presses down the wiring terminal and is sleeved on the conductive bolt on the conductive bar, the wiring terminal is screwed to the conductive bolt through a locking part of the wiring fastening device, meanwhile, a conductive column of the wiring fastening device is inserted into a corresponding wiring hole of the wiring terminal, the wiring terminal is firmly fixed, and the electric energy of the conductive bar is transmitted to the cable through the conductive bolt, a conductive body in the locking part of the wiring fastening device and. According to the cable branch box with the indication function, the cable is more reliably connected and fixed through the inserting and locking structure, and meanwhile, the safety performance of the cable branch box is improved through internal transmission.

Description

Cable branch box with indication

Technical Field

The invention belongs to the field of power equipment, and particularly relates to a cable branch box with an indication function.

Background

In the operation of a distribution line, a cable branch box is a common power device for distribution, and in order to achieve the purpose of current branching of the line through the cable branch box, cables of related inlet and outlet ends need to be respectively connected with corresponding conductive pivots of a conductive bar in a box body. However, the existing cable branch box has problems in that the connection with the connection terminal of the incoming or outgoing cable is not stable, the operation is troublesome, and the safety performance is not high when the box door is opened in a non-power-off state due to the exposed connection terminal or the conductor, and so on.

Disclosure of Invention

The invention aims to provide a cable branch box with an indication function, so that the connection between a cable and a conductive bar is more reliable and firm, and the branch power distribution reliability of the cable branch box is improved.

In order to solve the problems, the invention provides a cable branch box with an indication function, which comprises a box body, cable wires, a conductive bar and a wiring fastening device, wherein the conductive bar is arranged in the box body, and a plurality of cable wires are respectively connected to each conductive pivot of the conductive bar in a conductive manner through the wiring fastening device; the cable is provided with a disc-shaped conductive connecting terminal with a circular through hole in the middle, a plurality of wiring holes are radially distributed on the connecting terminal, the size of the hole body of each wiring hole is gradually reduced from the upper surface to the lower surface of the connecting terminal, the wiring fastening device comprises a main body part, a wiring part and a locking part, the locking part and the wiring part are respectively and rotatably fixed on the upper part and the lower part of the main body part, the wiring part comprises a disc-shaped wiring board with a circular through hole in the middle and a plurality of conductive columns which are radially distributed at the bottom of the wiring board and protrude downwards, the conductive columns are gradually narrowed from the end connected with the wiring board to the end far away from the wiring board, the center of the main body part is also vertically provided with a circular hole in a penetrating way, the center of the locking part is provided with a conductive body, and the middle of the, the round through hole, the round hole and the threaded hole are coaxially arranged, the electric conductor is in conductive connection with the wiring part, the surface of the conductive bar is covered with an insulating layer, each conductive fulcrum of the conductive bar is provided with a conductive bolt which penetrates out of the insulating layer in a protruding mode, the wiring terminal is placed on the periphery of the conductive fulcrum through the round through hole of the wiring terminal, the wiring part is rotated to the angle that the conductive column can be inserted into the wiring hole, the conductive bolt sequentially penetrates through the round through hole and the round hole and is in threaded connection and fastening with the locking part, the conductive column is inserted into the wiring hole, and the wiring terminal is further connected with an electricity testing device.

Further, the conductive column is inserted into the wiring hole in an interference fit mode.

Further, the conductive column is matched with the cross-sectional shape of the wiring hole.

Further, the cross-sectional shapes of the conductive column and the wiring hole are fan-ring-shaped.

Furthermore, the locking part and the main body part are made of insulating materials.

Furthermore, a plurality of line ports are arranged on the box body, and each line port comprises a line inlet and a line outlet.

Further, the box body comprises a box door capable of being opened and closed.

Furthermore, the periphery of the wiring board is fixedly connected with a horizontally arranged rotating handle, the end head of the rotating handle extends out of the main body part and is exposed, and the rotating handle can rotate around the circumference of the main body part.

Still further, the periphery of the wiring terminal is provided with a first alignment strip, the periphery of the wiring board is provided with a second alignment strip, and when the wiring board rotates to the second alignment strip to be abutted against the first alignment strip, the conductive column can be inserted into the corresponding wiring hole in an aligned mode.

Further, the turning handle is an insulator.

The technical scheme of the invention has the following beneficial effects: the binding post cover through the cable conductor is placed on the insulating layer around electrically conductive fulcrum outside the electrically conductive bolt, wiring fastener pushes down binding post and overlaps on the electrically conductive bolt on leading the electrical drainage, and simultaneously wiring fastener lead in electrical drainage post insert the wiring hole of the binding post that corresponds, binding post by firmly fixed, through electrically conductive bolt, the electric conductor in wiring fastener's the locking portion, lead between the electrical drainage post conductive connection, will lead electrical drainage electric energy transmission to cable conductor in addition for the electric energy transmits in inside. According to the cable branch box with the indication function, the cable is more reliably connected and fixed through the inserting and locking structure, and meanwhile, the cable branch box with the indication function has the live indication function through internal transmission, so that the safety performance of the cable branch box is improved.

Drawings

FIG. 1 is a front view of a cable breakout box with indicators according to an embodiment of the present invention;

FIG. 2 is a side view of a cable breakout box with indicators according to an embodiment of the present invention;

FIG. 3 is a schematic view of the interior of a cable breakout box with an indicator according to an embodiment of the present invention;

fig. 4 is a top view of a wire terminal of an embodiment of the present invention;

FIG. 5 is a bottom view of the wire binding fastening device of an embodiment of the present invention;

FIG. 6 is a schematic diagram of the cable and busbar connection operation according to the embodiment of the invention, wherein the connection fastening device is partially cut away.

FIG. 7 is a cross-sectional view of a portion of the wire binding securing device in accordance with another embodiment of the present invention.

Detailed Description

The following will further describe in detail a specific embodiment of a cable branch box with indication in conjunction with the drawings attached to the present specification, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not a whole embodiment, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiment of the present invention belong to the protection scope of the present application.

As shown in fig. 1-6, a cable branch box with an indicator according to an embodiment of the present invention includes a box body 1, cable wires 6, a conductive bar, and a wiring fastening device 7, where the conductive bar is disposed in the box body 1, and a plurality of cable wires 6 are conductively connected to each conductive fulcrum of the conductive bar through the wiring fastening device 7, respectively (none of the conductive bar, the insulating layer, and the conductive fulcrum is shown in the drawing); the cable conductor 6 is provided with a disc-shaped conductive wiring terminal 9 with a circular through hole in the middle, a plurality of wiring holes 10 are radially distributed on the wiring terminal 9, the size of the hole body of each wiring hole 10 is gradually reduced from the upper surface to the lower surface of the wiring terminal 9, the wiring fastening device 7 comprises a main body part 71, a wiring part and a locking part 75, the locking part 75 and the wiring part are respectively and rotatably fixed on the upper part and the lower part of the main body part 71, the wiring part comprises a disc-shaped wiring board 72 with a circular through hole in the middle and a plurality of conductive columns 73 radially distributed and downwards convexly arranged at the bottom of the wiring board 72, the conductive columns 73 are gradually narrowed from the end connected with the wiring board 72 to the end far away from the wiring board 72, the center of the main body part 71 is also vertically provided with a circular hole in a penetrating way, and a conductor 76 is arranged, the middle of the conductor 76 is provided with a threaded hole which is downward and communicated with the round hole, the round through hole, the round hole and the threaded hole are coaxially arranged, the conductor 76 is in conductive connection with the wiring part, the surface of the conductive bar is covered with an insulating layer, each conductive pivot of the conductive bar is in conductive connection with a conductive bolt 11 which penetrates out of the insulating layer in a protruding mode, the wiring terminal 9 is arranged on the insulating layer around the conductive pivot outside the conductive bolt 11 through the round through hole in a sleeved mode, the wiring part is rotated to an angle that the conductive column 73 can be inserted into the wiring hole 10, the conductive bolt 11 sequentially penetrates through the round through hole, the round hole and the locking part 75 to be in threaded connection and fastened, the conductive column 73 is inserted into the wiring hole 10, and the wiring terminal is further connected with. Specifically, be equipped with in the cable branch case that takes the instruction and divide extension board 5, electrically conductive row fixed mounting is on dividing extension board 5, and it distributes on the electrically conductive row and has the electrically conductive fulcrum of the electrically conductive connection of a plurality of, and a plurality of cable conductor 6 also are on extension board 5 with electrically conductive row wiring, and cable conductor 6 includes inlet wire cable conductor and outlet wire cable conductor, and preferably, inlet wire cable conductor and outlet wire cable conductor wiring respectively are in the both sides of electrically conductive row. The conductive bar and the conductive fulcrum thereof, the connection terminal 9, the conductive bolt 11, the connection part of the connection fastening device 7 and the conductor 76 in the locking part 75 are all conductive. When the cable 6 is connected with the conductive bar, the wiring terminal 9 is reliably pressed by the conductive column 73, so that the wiring fastening device 7 can tightly press and fix the wiring terminal 9, the conductive bolt 11 on the conductive bar is connected to the wiring board 72 of the wiring part through the conductive body 76 of the locking part 75, then to the conductive column 73 and to the wiring terminal 9 to form a conductive path, the electric energy is transmitted to the cable 6, the electric energy of the conductive bar is reliably and effectively transmitted to the cable 6, and meanwhile, the mounting and fixing of the wiring terminal 9 on the conductive bar are very firm. Preferably, the main body portion 71, the wire connecting portion and the locking portion 75 are cylindrical as a whole, and are coaxially arranged, and the diameter of the circular through hole, the circular through hole and the circular hole is equal.

In one embodiment, the outer periphery of the body portion 71 may extend downwardly a distance of the cover wall, preferably above the cable 6 after the terminal 9 is securely mounted, so as not to press against the cable 6. In addition, the insulating layer near the conductive fulcrum also upwards extends a circle of insulating cover, which is in sleeve joint with the cover wall, and the wiring terminal 9 and the wiring part are all covered therein, and the corresponding position of the insulating cover can start the avoiding groove for the extension of the power cable. The wiring terminal is further connected with an electricity testing device, so that the worker can know the current electrification condition of the wiring terminal through the electricity testing device through an indicating lamp or an alarm device and the like.

Preferably, the conductive post 73 is inserted into the connection hole 10 in an interference fit manner. The conductive post 73 matches the cross-sectional shape of the wiring hole 10. That is, in the vertical direction, the width of the conductive pillar 73 is slightly larger than the width of the hole body of the wiring hole 10, so that when the conductive pillar 73 is inserted into the wiring hole 10, the conductive pillar 73 can abut against the hole wall of the wiring hole 10 in a manner of tightly supporting the hole wall all around, so as to ensure the tight fit connection between the conductive pillar 73 and the wiring terminal 9. In one embodiment, the cross-sectional shapes of the conductive post 73 and the wiring hole 10 are fan-ring shapes, as shown in fig. 4 and 5. The overall height of the conductive screw 11 is less than the sum of the overall heights of the connecting terminal 9 and the connecting terminal fastening device 7.

In order to facilitate the safe operation of the wiring, the locking portion 75 is made of an insulating material on the outside. The main body 71 is also made of an insulating material on the outside. Specifically, in order to achieve the rotatable attachment of the locking portion 75 and the wire connecting portion to the main body portion 71 respectively, in another embodiment, the upper surface of the main body 71 is provided with a ring-shaped protrusion having a T-shaped cross section as shown in fig. 7, the lower surface of the locking portion 75 is provided at a corresponding position with a ring-shaped guide rail having a cross-sectional shape matching the ring-shaped protrusion, similarly, the upper surface of the wire connecting portion, that is, the upper surface of the terminal block 72 is convexly provided with a ring-shaped protrusion having a T-shaped cross section, a circle of annular guide rails matched with the cross section of the annular convex strips are arranged at the corresponding positions of the lower surface of the main body part 71, the locking part 75 and the main body part 71 and the wiring part are respectively and movably connected by the annular convex strips extending into the annular guide rails and being buckled in the annular guide rails, so that the three are fixedly connected together, and the locking portion 75 and the wire connecting portion are respectively rotatable relative to the main body portion 71. All the annular ridges and the annular rails are the electric conductors 76, the periphery of the electric conductor 76 is in conductive connection with the annular rail on the lower surface of the locking part 75 through the conductive connecting sheet arranged in the locking part 75, the annular ridges on the upper surface of the main body part 71 are in conductive connection with the annular rail on the lower surface of the main body part 71 through the conductive connecting sheet arranged in the main body part 71, and therefore the electric conductor 76 is in conductive connection with the wire connecting part. Wherein the annular projecting strip of the wiring portion, the wiring board 72 and the conductive post 73 can be integrally formed.

Preferably, the wiring holes 10 are uniformly distributed in the radial direction of the wiring terminal 9, all the wiring holes 10 are uniform in shape and structure, the conductive posts 73 are uniformly distributed in the radial direction of the wiring board 72, and all the conductive posts 73 are uniform in shape and structure. The number of the conductive posts 73 may be smaller than the number of the wiring holes 10, but in this case, the arrangement of the conductive posts 73 is required to enable each conductive post 73 to be inserted into one wiring hole 10. Preferably, the number of the conductive posts 73 is equal to the number of the wiring holes 10. In the present embodiment, 8 are provided.

In another embodiment, a horizontally disposed rotation handle 77 is attached to the periphery of the wiring board 72, the end of the rotation handle 77 extends out of the main body 71 and is exposed, and the rotation handle 77 can rotate on the main body around the circumference thereof. Specifically, the main body 71 has a through slot therein for allowing the rotation of the rotation handle 77 and the rotation of the connection plate 72. The turning handle 77 is an insulator to improve the safety of operation.

In another example, as shown in fig. 4 to 6, the terminal block 9 is provided with a first alignment bar 12 on the outer periphery thereof, and the terminal block 72 is provided with a second alignment bar 13 on the outer periphery thereof, so that when the terminal block 72 is rotated to abut against the second alignment bar 13 and the first alignment bar 12, the conductive posts 73 can be inserted into the corresponding terminal holes 10 in an aligned manner, so that the conductive posts 73 are aligned with the terminal holes 10. Specifically, the first alignment strip 12 may be configured such that the right side thereof abuts against the left side of the center line of one of the wiring holes 10, and the second alignment strip 13 is configured such that the left side thereof abuts against the right side of the center line of one of the conductive strips, so that when the right side of the first alignment strip 12 abuts against the left side of the second alignment strip 13, the conductive post 73 can correspond to the wiring hole 10 and can be inserted further into the wiring hole 10. The length of the second alignment bar 13 is slightly longer than the length of the conductive post 73, i.e. it can slightly protrude below the conductive post 73, so as to be able to abut against the first alignment bar 12 before the conductive post 73 is inserted. Of course alignment can be achieved in other ways.

In addition, the cabinet 1 includes an openable and closable cabinet door 3. The cable branch protection box is convenient to protect and meanwhile can be operated by opening the box door 3 by workers. The box body 1 is provided with heat dissipation holes 4 to facilitate heat dissipation.

In addition, be equipped with a plurality of line mouth 2 on the box 1, line mouth 2 includes inlet wire 2 and outlet port 2, supplies inlet wire cable line, outlet wire cable line to use respectively.

In this embodiment, one side of each electrically conductive branch point on the bifurcation board 5 is further provided with a guide bar 8, a limiting plate 74 is horizontally extended from the periphery of the main body portion 71 of each wiring fastening device 7 by the vertical arrangement of the guide bar 8, the outer end of the limiting plate 74 is provided with a small hole, the wiring fastening device 7 is sleeved on the corresponding guide bar 8 through the small hole of the limiting plate 74, and can move up and down on the guide bar 8 to guide the wiring fastening device 7, and when the cable 6 is not connected, the wiring fastening device 7 can also be positioned on the bifurcation board 5 through the guide bar 8 to be ready for wiring at any time, so that the wiring fastening device 7 is prevented from being lost easily. The top end of the guide rod 8 can also be provided with a detachable limiting structure to prevent the limiting plate 74 from being separated. In addition, the guide rod 8 and the limit plate 74 are made of insulating materials.

When the cable is branched for wiring, firstly, the wiring fastening device 7 corresponding to the wiring position is lifted, the wiring terminal 9 of the cable 6 is sleeved on the corresponding conductive bolt 11 and is placed on the insulating layer around the conductive fulcrum, the wiring fastening device 7 is pulled down, and meanwhile, the wiring part can be rotated through the rotating handle 77, so that the conductive column 73 can be correspondingly inserted into the wiring hole 10, the wiring fastening device 7 is pressed down, and the locking part 75 is screwed, and then wiring is completed.

In conclusion, the wiring terminal of the cable is sleeved on the insulating layer around the conductive fulcrum outside the conductive bolt, the wiring fastening device presses down the wiring terminal and sleeves the conductive bolt on the conductive bar, meanwhile, the conductive column of the wiring fastening device is inserted into the wiring hole of the corresponding wiring terminal, the wiring terminal is firmly fixed, and in addition, the electric energy of the conductive bar is transmitted to the cable by the conductive connection among the conductive bolt, the conductive body in the locking part of the wiring fastening device and the conductive column, so that the electric energy is transmitted inside. The cable branch box with the indication function in the embodiment has the advantages that the cable connection is more reliable through the structure of plugging and locking, meanwhile, the cable branch box with the indication function is provided with the live indication function through internal transmission, and the safety performance of the cable branch box is improved.

It should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cable branch box with an indication function comprises a box body, cable wires, a conductive bar and a wiring fastening device, wherein the conductive bar is arranged in the box body, and a plurality of cable wires are respectively connected to each conductive pivot of the conductive bar in a conductive manner through the wiring fastening device; the method is characterized in that: the cable is provided with a disc-shaped conductive connecting terminal with a circular through hole in the middle, a plurality of wiring holes are radially distributed on the connecting terminal, the size of the hole body of each wiring hole is gradually reduced from the upper surface to the lower surface of the connecting terminal, the wiring fastening device comprises a main body part, a wiring part and a locking part, the locking part and the wiring part are respectively and rotatably fixed on the upper part and the lower part of the main body part, the wiring part comprises a disc-shaped wiring board with a circular through hole in the middle and a plurality of conductive columns which are radially distributed at the bottom of the wiring board and protrude downwards, the conductive columns are gradually narrowed from the end connected with the wiring board to the end far away from the wiring board, the center of the main body part is also vertically provided with a circular hole in a penetrating way, the center of the locking part is provided with a conductive body, and the middle of the, the round through hole, the round hole and the threaded hole are coaxially arranged, the electric conductor is in conductive connection with the wiring part, the surface of the conductive bar is covered with an insulating layer, each conductive fulcrum of the conductive bar is provided with a conductive bolt which penetrates out of the insulating layer in a protruding mode, the wiring terminal is placed on the periphery of the conductive fulcrum through the round through hole of the wiring terminal, the wiring part is rotated to the angle that the conductive column can be inserted into the wiring hole, the conductive bolt sequentially penetrates through the round through hole and the round hole and is in threaded connection and fastening with the locking part, the conductive column is inserted into the wiring hole, and the wiring terminal is further connected with an electricity testing device.

2. The cable breakout box with indication of claim 1, wherein: the conductive columns are inserted into the wiring holes in an interference fit mode.

3. The cable breakout box with indication of claim 2, wherein: the cross section shapes of the conductive columns and the wiring holes are matched.

4. The cable breakout box with indication of claim 3, wherein: the cross section of the conductive column and the wiring hole is in a fan ring shape.

5. The cable breakout box with indication of claim 1, wherein: the locking part and the main body part are made of insulating materials.

6. The cable breakout box with indication of claim 1, wherein: the box body is provided with a plurality of wire ports, and each wire port comprises a wire inlet and a wire outlet.

7. The cable breakout box with indication of claim 1, wherein: the box body comprises a box door which can be opened and closed.

8. The cable breakout box with indication of claim 1, wherein: the periphery of the wiring board is fixedly connected with a horizontally arranged rotating handle, the end head of the rotating handle extends out of the main body part and is exposed, and the rotating handle can rotate on the main body part around the circumferential direction of the main body part.

9. The cable breakout box with indication of claim 1 or 8, wherein: the wiring terminal is characterized in that a first alignment strip is arranged on the periphery of the wiring terminal, a second alignment strip is arranged on the periphery of the wiring board, and when the wiring board rotates to the second alignment strip and the first alignment strip are offset, the conductive column can be inserted into the corresponding wiring hole in an aligned mode.

10. The cable breakout box with indication of claim 8, wherein: the rotating handle is an insulator.