CN110277738B - Low-voltage distribution box with grounding wire device - Google Patents
Low-voltage distribution box with grounding wire device Download PDFInfo
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- CN110277738B CN110277738B CN201910355238.9A CN201910355238A CN110277738B CN 110277738 B CN110277738 B CN 110277738B CN 201910355238 A CN201910355238 A CN 201910355238A CN 110277738 B CN110277738 B CN 110277738B
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- grounding
- distribution box
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- plug connector
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- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 210000002421 cell wall Anatomy 0.000 claims 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/16—Earthing arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cable Accessories (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a low-voltage distribution box with a grounding wire device, which comprises a distribution box body with a box door and a grounding wire device, wherein a hook for mounting the grounding wire device is arranged on the inner side of the box door of the distribution box body, the grounding wire device comprises a bus and a plurality of grounding leads, one end of each grounding lead is fixedly connected with one end of the grounding bus, the low-voltage distribution box also comprises connecting pieces with the same number as the grounding leads, the connecting pieces are in threaded connection with binding posts of the low-voltage distribution box, and one end of each grounding lead, which is far away from the grounding bus, is provided with a plug-in connector matched with. In the invention, the connecting piece and the plug connector have small volumes, and can still be normally used under the condition of smaller distance between the two binding posts.
Description
Technical Field
The invention relates to a distribution box, in particular to a low-voltage distribution box with a grounding wire device.
Background
At present, when overhauing low voltage distribution box, in order to guarantee maintainer's safety, need earlier carry out ground connection to the inside circuit of low voltage distribution box before overhauing. The existing common grounding wire device generally comprises a grounding wire, wherein two ends of the grounding wire are respectively provided with a wire clamp, when grounding operation is carried out, one wire clamp of the grounding wire is connected with a binding post in a low-voltage distribution box, and the other wire clamp is connected with a grounding line. However, in the actual operation process, because the distance between two adjacent terminals in the low-voltage distribution box is small, and the volume of the traditional wire clamp is large, the wire clamp is often difficult to connect to the terminals due to insufficient space, and great difficulty is caused to the grounding operation.
For example, chinese patent publication No. CN102456957A discloses a ground wire clamp, wherein an inverted U-shaped insulating outer bracket is mounted on an insulating outer bracket fixing base, a probe aluminum tape is mounted outside the insulating outer bracket, a annealed copper wire is disposed inside the insulating outer bracket, the insulating outer bracket and the annealed copper wire are fixed on the insulating outer bracket base by a fixing pin, and an electrified alarm device is mounted in the insulating outer bracket base and connected to the probe aluminum tape. The invention has the following disadvantages: this earth clamp is bulky, and the distance between two adjacent terminals in the low-voltage distribution box is less, when using, often can be because the space is not enough and that establishes on the terminal in order to hang the earth clamp, causes great difficulty for the ground connection operation.
Disclosure of Invention
The invention aims to solve the problem that a traditional grounding wire device cannot be connected to a binding post due to insufficient space when a low-voltage distribution box is in grounding operation because the distance between two adjacent binding posts is too small, and provides a low-voltage distribution box with a grounding wire device, which can effectively solve the problem.
The purpose of the invention is realized by the following technical scheme: the utility model provides a take low voltage distribution box of earth connection device, is including block terminal body and the earth connection device that has the chamber door, the chamber door inboard of block terminal body is provided with the couple that is used for the carry earth connection device, the earth connection device includes bus and a plurality of earth lead, and every earth lead's one end all with earth connection bus's one end fixed connection, still include the connecting piece the same with earth lead quantity, connecting piece and low voltage distribution box's terminal threaded connection, every earth lead keep away from earth connection bus's one end all be provided with the connecting piece complex bayonet joint of pegging graft.
In the invention, the connecting piece is connected to the binding post in advance. The connecting piece is provided with a threaded hole which is matched with the external thread on the binding post. The connecting piece and the plug are both made of conductive materials. When the grounding operation is carried out, the grounding operation can be finished only by inserting the plug connector on the grounding lead into the connecting piece and then connecting the grounding bus with the grounding line. In the invention, the connecting piece and the plug connector have small volumes, and can still be normally used under the condition of smaller distance between the two binding posts. The plug-in connector is connected with the connecting piece in a plug-in mode, so that the connection and the disassembly are facilitated. The grounding bus is simultaneously connected with a plurality of grounding leads, and each grounding lead can be respectively connected with a binding post, so that one grounding wire can simultaneously ground a plurality of lines.
Preferably, an insulating sleeve is arranged at one end of the grounding lead close to the plug connector, and the insulating sleeve is sleeved on the grounding lead. The insulating sleeve is made of insulating materials, so that an operator can hold the insulating sleeve to avoid electric shock during grounding operation.
Preferably, the insulating sleeve comprises an insulating layer sleeved on the grounding lead and a rubber grip sleeve sleeved outside the insulating layer. The insulating layer plays main insulating effect, and the rubber grip cover of cover outside the insulating layer can improve the comfort level that the user gripped, has also played further insulating effect simultaneously, has increased the security of operator when the operation.
Preferably, one end of the connecting piece is provided with a threaded hole matched with the wiring terminal of the low-voltage distribution box, one end, opposite to the threaded hole, of the connecting piece is provided with a jack matched with the plug connector, and a locking mechanism is arranged between the jack and the plug connector. When the connector is used, the threaded hole in the connecting piece is connected with the external thread on the binding post, and the plug-in connector is plugged in the plug of the connecting piece. The locking mechanism can ensure that the plug connector can be separated from the connecting piece after being inserted into the jack.
Preferably, the bottom of the jack is provided with an elastic contact piece, and the elastic contact piece is abutted against the front end of the plug connector when the plug connector is connected with the connecting piece. Even if the plug connector and the connecting piece are relatively loosened, the elastic contact piece still can be in good contact with the front end of the plug connector due to the elasticity.
Preferably, the locking mechanism comprises a sliding cavity arranged on the side surface of the front end of the plug connector, the sliding cavity is arranged along the radial direction of the plug connector, a locking block is connected in the sliding cavity in a sliding manner, a spring is arranged between the locking block and the bottom surface of the sliding cavity, the front end of the locking block extends out of the sliding cavity, and the side, which extends out of the sliding cavity and is close to the front end of the plug connector, of the locking block is in a slope shape; the side of the jack is provided with a locking groove corresponding to the locking block, the locking groove protrudes towards the radial direction of the jack, the groove wall of the locking groove facing the jack is arc-shaped, and one end of the groove wall extends to be connected with the side wall of the jack. When the plug connector is inserted into the jack, the locking block is clamped into the locking groove under the action of the spring, so that the plug connector and the connecting piece are locked with each other. When the plug connector needs to be pulled out, the plug connector only needs to be rotated, the front end of the locking block can move along the arc-shaped groove wall, the locking groove gradually retracts into the sliding cavity in the moving process, when the front end of the locking block moves to the side wall of the jack, the locking block is moved out of the locking groove, and at the moment, the plug connector can be directly pulled out of the jack. The locking mechanism is simple and convenient to operate and simple and reliable in structure.
Preferably, a guide groove for guiding the locking block in the process of inserting the plug connector into the jack is formed in one side of the jack, the guide groove is formed in the axial direction of the jack, and the guide groove is communicated with the locking groove. When the plug-in connector is inserted into the jack, the front end of the locking block is clamped into the locking groove, so that the front end of the locking block can slide to the locking groove along the guide groove in the insertion process, and the locking block is guided.
Preferably, one end of the grounding bus, which is far away from the grounding lead, is provided with a chuck for connecting a grounding line. The ground bus is connected to the ground line through the chuck.
Preferably, the chuck comprises a chuck body fixedly connected with the grounding lead, the chuck body is C-shaped, a screw rod is connected to the chuck body in a threaded mode, a pressing plate is arranged at one end of the screw rod, the pressing plate is located in the chuck body and faces one surface of the chuck body, and a rotating handle is arranged at the other end of the screw rod. The chuck body is made of a conductive material. When the clamping head is used, a clamped object is placed in the clamping head body, and then the pressing plate is driven to move by rotating the screw rod so as to clamp the clamped object.
The invention has the beneficial effects that: in the invention, the connecting piece and the plug connector have small volumes, and can still be normally used under the condition of smaller distance between the two binding posts. The plug-in connector is connected with the connecting piece in a plug-in mode, so that the connection and the disassembly are facilitated. The grounding bus is simultaneously connected with a plurality of grounding leads, and each grounding lead can be respectively connected with a binding post, so that one grounding wire can simultaneously ground a plurality of lines.
Drawings
Fig. 1 is a schematic structural diagram of a ground line device.
Fig. 2 is a schematic structural diagram of the connection plug and the connecting piece.
Fig. 3 is an enlarged view of a portion a of fig. 2.
Fig. 4 is a sectional view taken along the line a-a in fig. 2.
Fig. 5 is a schematic view of the chuck.
Fig. 6 is a schematic view of the grounding wire device hanging on the distribution box body.
In the figure: 1. the ground bus, 2, ground lead, 3, connecting piece, 4, bayonet joint, 5, insulating sleeve, 6, chuck, 7, screw hole, 8, insulating layer, 9, rubber are held the cover, 10, jack, 11, locking groove, 12, sliding cavity, 13, locking piece, 14, spring, 15, elastic contact piece, 16, chuck body, 17, screw rod, 18, rotatory handle, 19, clamp plate, 20, guide way, 21, block terminal body, 22, couple.
Detailed Description
The invention is further described by the following detailed description in conjunction with the accompanying drawings.
Example (b): as shown in fig. 1 to 6, a low voltage distribution box with a ground wire device includes a distribution box body 21 with a box door and a ground wire device. And a hook 22 for mounting the grounding wire device is arranged on the inner side of the door of the distribution box body 21. The grounding wire device comprises a grounding bus 1, a plurality of grounding leads 2 and connecting pieces 3 with the same number as the grounding leads 2. The number of ground leads 2 can be set more practically. In the present embodiment, three ground leads 2 are provided in total. One end of each grounding lead 2 is fixedly connected with one end of the grounding bus 2. And one end of the grounding lead 2, which is far away from the grounding bus, is provided with a plug 4. The plug 4 is cylindrical. The plug 4 is made of metal. One end of the plug 4 is welded and fixed with the grounding lead 2. One end of the connecting piece 3 is provided with a threaded hole 7. The threaded hole 7 is matched with an external thread on a binding post in the low-voltage distribution box. When in use, the connecting piece 3 is in threaded connection with the binding post. The end of the connecting piece 3 opposite to the threaded hole 7 is provided with a jack 10 matched with the plug 4. The bottom of the jack 10 is provided with a resilient contact 15. The elastic contact piece 15 is a rectangular copper sheet. The elastic contact piece 15 is obliquely arranged on the bottom surface of the insertion hole 10. One end of the elastic contact piece 15 is fixedly connected to the bottom surface of the jack 10, and the other end is a free end. When the plug 4 is connected with the connecting piece 3, the free end of the elastic contact piece 15 is abutted against the front end of the plug 4. A locking mechanism is arranged between the jack 10 and the plug 4.
The locking mechanism comprises a sliding chamber 12 arranged at the side of the plug 4. The sliding chamber 12 is arranged in the radial direction of the plug 4. One end of the sliding cavity 12 penetrates through the side surface of the plug 4. The sliding chamber 12 is rectangular in cross-section. A locking block 13 is slidably connected in the sliding cavity 12. The cross section of the locking piece 13 matches the cross section of the sliding cavity 12. A spring 14 is arranged between the locking piece 13 and the bottom surface of the sliding cavity 12. The front end of the locking piece 13 extends out of the sliding cavity 12. The side of the locking piece 13 extending out of the sliding cavity 12 and close to the front end of the plug 4 is in a slope shape. The side of the insertion hole 10 is provided with a locking groove 12 corresponding to the locking piece 13. The locking groove 11 protrudes in the radial direction of the insertion hole 10. The wall of the locking groove 11 facing the receptacle 10 is curved. One end of the groove wall extends to be connected with the side wall of the insertion hole 10. One side of the insertion hole 10 is provided with a guide groove 20. The guide groove 20 is a linear groove. The guide groove 20 is provided in the axial direction of the socket 10. The guide groove 20 communicates with the locking groove 11. When the plug connector is inserted into the jack, the locking block is clamped into the locking groove under the action of the spring, so that the plug connector and the connecting piece are locked with each other. When the plug connector needs to be pulled out, the plug connector only needs to be rotated, the front end of the locking block can move along the arc-shaped groove wall, the locking groove gradually retracts into the sliding cavity in the moving process, when the front end of the locking block moves to the side wall of the jack, the locking block is moved out of the locking groove, and at the moment, the plug connector can be directly pulled out of the jack. When the plug-in connector is inserted into the jack, the front end of the locking block is clamped into the locking groove, so that the front end of the locking block can slide to the locking groove along the guide groove in the insertion process, and the locking block is guided. The locking mechanism is simple and convenient to operate and simple and reliable in structure.
An insulating sleeve 5 is arranged at one end of the grounding lead 2 close to the plug 4. The insulating sleeve 5 comprises an insulating layer 8 which is fitted over the ground lead 2. The insulating layer 5 is cylindrical. The insulating layer 8 is made of insulating rubber, insulating ceramic, or other insulating material. The insulating layer is sleeved with a rubber grip 9. The rubber grip 9 is cylindrical. An anti-slip groove is arranged on the outer annular surface of the rubber grip 9.
The end of the ground bus 1 remote from the ground lead 2 is provided with a clip 6 for connecting a ground line. The collet 6 includes a collet body 16 fixedly attached to the ground lead 2. The collet body 16 is "C" shaped. The chuck body 16 is connected with a screw rod 17 in a threaded manner. One end of the screw 17 is provided with a pressure plate 19. A pressure plate 19 is located within the cartridge body 16 and faces one of the surfaces of the cartridge body 16. The other end of the screw 17 is provided with a rotary knob 18. The rotating handle 18 is a cylinder.
In the invention, the connecting piece is connected to the binding post in advance. The connecting piece is provided with a threaded hole which is matched with the external thread on the binding post. The connecting piece and the plug are both made of conductive materials. When the grounding operation is carried out, the grounding operation can be finished only by inserting the plug connector on the grounding lead into the connecting piece and then connecting the grounding bus with the grounding line. In the invention, the connecting piece and the plug connector have small volumes, and can still be normally used under the condition of smaller distance between the two binding posts. The plug-in connector is connected with the connecting piece in a plug-in mode, so that the connection and the disassembly are facilitated. The grounding bus is simultaneously connected with a plurality of grounding leads, and each grounding lead can be respectively connected with a binding post, so that one grounding wire can simultaneously ground a plurality of lines.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a take low voltage distribution box of earth connection device, is including block terminal body (21) and the earth connection device that has the chamber door, the chamber door inboard of block terminal body (21) is provided with couple (22) that are used for the carry earth connection device, the earth connection device includes bus (1) and a plurality of ground lead (2), the one end of every ground lead (2) all with the one end fixed connection of ground bus (1), its characterized in that: the grounding device is characterized by also comprising connecting pieces (3) with the same number as the grounding leads, wherein the connecting pieces (3) are in threaded connection with binding posts of the low-voltage distribution box, and one end of each grounding lead (2) far away from the grounding bus (1) is provided with a plug connector (4) which is in plug fit with the connecting pieces (3); one end of the connecting piece (3) is provided with a threaded hole (7) matched with a binding post of the low-voltage distribution box, one end of the connecting piece (3) opposite to the threaded hole (7) is provided with a jack (10) matched with the plug connector (4), and a locking mechanism is arranged between the jack (10) and the plug connector (4); the locking mechanism comprises a sliding cavity (12) arranged on the side face of the plug connector (4), the sliding cavity (12) is arranged along the radial direction of the plug connector (4), a locking block (13) is connected in the sliding cavity (12) in a sliding mode, a spring (14) is arranged between the locking block (13) and the bottom face of the sliding cavity (12), the front end of the locking block (13) extends out of the sliding cavity (12), and one side, close to the front end of the plug connector (4), of the locking block (13) extends out of the sliding cavity (12) and is in a slope shape; the side of jack (10) is provided with locking groove (11) corresponding with locking piece (13), locking groove (11) are to the radial protrusion of jack (10), the cell wall towards jack (10) on locking groove (11) is the arc, the one end of cell wall extends to and links to each other with the lateral wall of jack (10).
2. The low-voltage distribution box with the grounding wire device according to claim 1, wherein an insulating sleeve (5) is arranged at one end of the grounding wire (2) close to the plug (4), and the insulating sleeve (5) is sleeved on the grounding wire (2).
3. Low-voltage distribution box with an earthing device according to claim 2, characterized in that said insulating sleeve (5) comprises an insulating layer (8) applied to the earthing lead (2) and a rubber grip (9) applied to the outside of the insulating layer (8).
4. Low voltage distribution box with a ground wire arrangement according to claim 1, characterized in that the bottom of the plug hole (10) is provided with a resilient contact (15), said resilient contact (15) abutting against the front end of the plug connector (4) when the plug connector (4) is connected to the connector (3).
5. The low-voltage distribution box with the grounding wire device according to claim 1, wherein one side of the insertion hole (10) is provided with a guide groove (20) for guiding the locking piece (13) in the process of inserting the plug connector (4) into the insertion hole (10), the guide groove (20) is arranged along the axial direction of the insertion hole (10), and the guide groove (20) is communicated with the locking groove (11).
6. Low-voltage distribution box with an earthing device according to claim 1, characterized in that the end of the earthing bus (1) remote from the earthing lead (2) is provided with a clip (6) for connecting an earthing line.
7. The low-voltage distribution box with the grounding wire device according to claim 6, wherein the chuck (6) comprises a chuck body (16) fixedly connected with the grounding wire (2), the chuck body (16) is C-shaped, a screw (17) is connected to the chuck body (16) in a threaded manner, one end of the screw (17) is provided with a pressing plate (19), the pressing plate (19) is located in the chuck body (16) and faces one surface of the chuck body (16), and the other end of the screw (17) is provided with a rotating handle (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910355238.9A CN110277738B (en) | 2019-04-29 | 2019-04-29 | Low-voltage distribution box with grounding wire device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910355238.9A CN110277738B (en) | 2019-04-29 | 2019-04-29 | Low-voltage distribution box with grounding wire device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110277738A CN110277738A (en) | 2019-09-24 |
| CN110277738B true CN110277738B (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910355238.9A Active CN110277738B (en) | 2019-04-29 | 2019-04-29 | Low-voltage distribution box with grounding wire device |
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| CN (1) | CN110277738B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08241768A (en) * | 1995-03-06 | 1996-09-17 | Oto Kk | Coaxial type pin jack and pin plug for electronic equipment |
| CN201466258U (en) * | 2009-09-08 | 2010-05-12 | 石家庄霞光电力安全设备有限公司 | Special grounding wire for high/low-voltage cable branch box |
| CN203445271U (en) * | 2013-07-30 | 2014-02-19 | 黎淑然 | Cable branch box grounding wire |
| CN203787598U (en) * | 2014-04-15 | 2014-08-20 | 国家电网公司 | Cable distribution box special grounding wire |
| CN108808368A (en) * | 2018-07-11 | 2018-11-13 | 广州爱玩派信息科技有限公司 | A kind of novel domestic electric appliance |
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2019
- 2019-04-29 CN CN201910355238.9A patent/CN110277738B/en active Active
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| CN110277738A (en) | 2019-09-24 |
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