CN115000820A - Low-voltage grounding device of low-voltage distribution box - Google Patents
Low-voltage grounding device of low-voltage distribution box Download PDFInfo
- Publication number
- CN115000820A CN115000820A CN202210755342.9A CN202210755342A CN115000820A CN 115000820 A CN115000820 A CN 115000820A CN 202210755342 A CN202210755342 A CN 202210755342A CN 115000820 A CN115000820 A CN 115000820A
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- low
- inner sleeve
- sliding rod
- sliding
- clamping head
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- 230000000670 limiting effect Effects 0.000 claims description 14
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 8
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- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- H02B1/48—Mounting of devices therein
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention discloses a low-voltage grounding device of a low-voltage distribution box, which comprises a first clamping head, a second clamping head and the like, wherein the first clamping head and the second clamping head are hinged at the head end of a sliding rod, the sliding rod is connected with a grounding wire, the sliding rod slides in an inner sleeve, a spring is arranged in the inner sleeve and pushes the inner sleeve to move towards the direction far away from the head end of the sliding rod, the inner sleeve pushes the first clamping head and the second clamping head to approach each other when sliding towards the head end of the sliding rod, the sliding rod is provided with a gear, a cam and a non-return rack, the gear is fixedly connected with the cam, the gear is rotatably connected with the sliding rod, one end of the non-return rack is connected with the sliding rod, the non-return rack has elasticity, the inner sleeve is provided with limit teeth matched with the non-return teeth, the outer sleeve is sleeved outside the inner sleeve in a sliding manner, the outer sleeve is provided with a rack which extends into the inner sleeve and is meshed with the gear, when the rack pushes the gear to rotate, can drive the cam to push the non-return rack to be attached to the limit teeth. The low-voltage grounding device is not easy to fall off after being connected.
Description
Technical Field
The invention relates to the technical field of distribution box grounding, in particular to a low-voltage grounding device of a low-voltage distribution box.
Background
The low-voltage distribution box is not provided with a grounding device usually, when a worker overhauls equipment, the worker carries a grounding wire to connect the outgoing line busbar or the outgoing line terminal wire into the ground, the traditional grounding wire is only a simple wire clamp arranged at the front end of the wire, and the wire clamp is used for clamping the outgoing line busbar or the outgoing line terminal wire. The in-process personnel of overhauing walk to lead to the earth connection to break away from very easily when stepping on the earth connection, simultaneously because the earth connection often need stretch to the cabinet of block terminal outdoors, also arouse the droing of earth connection easily when the cabinet door is closed.
Disclosure of Invention
In view of the above-mentioned prior art, the present invention provides a low-voltage grounding device for a low-voltage distribution box, which is not easy to fall off after being connected.
The technical scheme of the invention is realized as follows:
the utility model provides a low-voltage distribution box low-voltage grounding device, includes first holding head, second holding head, slide bar, spring, inner skleeve, gear, cam, contrary rack, spacing tooth, rack, outer sleeve and earth connection, first holding head and second holding head articulate the head end of slide bar, the slide bar is connected with the earth connection, the slide bar slides in the inner skleeve, the spring is equipped with in the inner skleeve, the spring promotes the inner skleeve moves to the direction of keeping away from the slide bar head end, the inner skleeve promotes when sliding to the head end of slide bar first holding head and second holding head are close to each other, the slide bar is equipped with gear, cam and contrary rack, the gear with cam fixed connection, the gear with the slide bar rotates to be connected, contrary rack one end with the slide bar is connected, the non-return rack is elastic, the inner sleeve is provided with limiting teeth matched with the non-return teeth, the outer sleeve is sleeved outside the inner sleeve in a sliding mode and provided with racks stretching into the inner sleeve and meshed with the gear, and when the gear rotates, the racks can drive the cam to push the non-return rack to be attached to the limiting teeth.
Furthermore, the outer side wall of the inner sleeve is provided with a first sliding groove, the inner side wall of the outer sleeve is provided with a first sliding block, and the first sliding block slides in the first sliding groove.
Furthermore, the tail ends of the first clamping head and the second clamping head are provided with bulges, and the bulges are positioned between the first clamping head and the second clamping head.
Furthermore, be equipped with the elastic clamp of U-shaped between first centre gripping head and the second centre gripping head, the elastic clamp with protruding connection, the lateral wall of elastic clamp is equipped with wavy anti-skidding structure.
Further, the inner sleeve and the outer sleeve are both made of insulating materials.
Furthermore, an end cover is arranged at the tail end of the inner sleeve, and the grounding wire penetrates out of the end cover.
Furthermore, the inner walls of the two sides of the head end of the inner sleeve are provided with second sliding grooves, the first clamping head and the second clamping head are respectively aligned with one of the second sliding grooves, and the first clamping head and the second clamping head slide along the second sliding grooves.
Furthermore, the sliding rod is provided with a cavity, and the gear, the cam and the non-return rack are all arranged in the cavity.
Furthermore, a third sliding groove is formed in the outer side wall of the sliding rod, and the rack penetrates from the third sliding groove to be meshed with the gear.
The invention has the beneficial effects that:
utilize the hand push when carrying out the ground connection and remove to first all direction the outer sleeve when connecting, after the relative inner skleeve of outer sleeve has slided, backstop rack and spacing tooth laminating, the slide bar can only remove to the direction of inserting the inner skleeve, and first centre gripping head and second centre gripping head can not be like the direction removal of keeping away from the inner skleeve, and the inner skleeve of first centre gripping head and second centre gripping head limits, can not loosen the wiring position. Contact between the non-return teeth and the limiting teeth can not be removed when the ground wire is pulled, and separation of the first clamping head and the second clamping head can not be caused when the ground wire is pulled by external force. After the first clamping head and the second clamping head are clamped and positioned, the outer sleeve and the inner sleeve can be immediately stopped from being pushed, the check rack at the moment is tightly matched with the limiting teeth, and the first clamping head and the second clamping head can be fixed at a plurality of opening angles. In the process of taking off the grounding device after the operation is completed, a worker grasps the outer sleeve to pull in the direction away from the wiring position, the sliding rod and the inner sleeve are limited, the pulling acting force at the moment can enable the outer sleeve to slide relative to the inner sleeve, so that the gear and the cam are driven to rotate, the protruding part of the cam rotates and then is away from the non-return rack, and the limiting effect between the sliding rod and the inner sleeve is relieved. The spring is equipped with in the inner skleeve, the spring promotes the inner skleeve is to keeping away from the direction of slide bar head end removes, and under spring and the effort of hand power, the inner skleeve removes to the direction of keeping away from first centre gripping head and second centre gripping head, and first centre gripping head and second centre gripping head lose the limiting displacement of inner skleeve gradually to loosen the wiring position gradually.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a low-voltage grounding device of a low-voltage distribution box according to the invention;
in the figure, 1 is a first clamping head, 2 is a second clamping head, 3 is a sliding rod, 4 is a spring, 5 is an inner sleeve, 6 is a gear, 7 is a cam, 8 is a non-return rack, 9 is a limit gear, 10 is a rack, 11 is an outer sleeve, 12 is a grounding wire, 13 is a first sliding groove, 14 is a first sliding block, 15 is a bulge, 16 is an elastic clamp, 17 is an anti-sliding structure, 18 is an end cover, 19 is a second sliding groove, 20 is a cavity, and 21 is a third sliding groove.
Detailed Description
For a better understanding of the technical content of the present invention, the following detailed description is provided in conjunction with the accompanying drawings for further explanation of the present invention.
Referring to fig. 1, a low-voltage grounding device of a low-voltage distribution box comprises a first clamping head 1, a second clamping head 2, a sliding rod 3, a spring 4, an inner sleeve 5, a gear 6, a cam 7, a non-return rack 8, a limit tooth 9, a rack 10, an outer sleeve 11 and a ground wire 12, wherein the first clamping head 1 and the second clamping head 2 are hinged at the head end of the sliding rod 3, the sliding rod 3 is connected with the ground wire 12, the sliding rod 3 slides in the inner sleeve 5, the spring 4 is arranged in the inner sleeve 5, the spring 4 pushes the inner sleeve 5 to move in a direction away from the head end of the sliding rod 3, the sliding rod 5 pushes the first clamping head 1 and the second clamping head 2 to approach each other when sliding towards the head end of the sliding rod 3, the sliding rod 3 is provided with the gear 6, the cam 7 and the non-return rack 8, the gear 6 is fixedly connected with the cam 7, the gear 6 with the slide bar 3 rotates to be connected, end-stopping rack 8 one end with the slide bar 3 is connected, end-stopping rack 8 has elasticity, inner skleeve 5 be equipped with end-stopping tooth complex spacing tooth 9, outer sleeve 11 slides and cup joints outside inner skleeve 5, outer sleeve 11 is equipped with and stretches into in the inner skleeve 5 with gear 6 meshed's rack 10, rack 10 promotes during gear 6 rotates, can drive cam 7 promotes end-stopping rack 8 laminates spacing tooth 9.
When making the ground connection, the worker holds the outer sleeve 11 and aligns the opened first and second gripping heads 1 and 2 to the wiring position. The wiring position produces an effort to slide bar 3, and outer sleeve 11 removes to first all direction when utilizing the hand pushing, and rack 10 meshes with gear 6 along with the in-process that outer sleeve 11 removed to drive gear 6 and rotate, gear 6 and cam 7 fixed connection, consequently drive cam 7 and rotate, when outer sleeve 11 slided and reaches extreme position, the arch 15 position of cam 7 at this moment was facing to non return rack 8, and cam 7 promotes non return rack 8 laminates spacing tooth 9. The outer sleeve 11 slides to the limit position relative to the inner sleeve 5, and when the outer sleeve 11 is pushed continuously, the inner sleeve 5 is driven to move towards the head end of the sliding rod 3 and overcome the elastic force of the spring 4. First supporting head 1 and second supporting head 2 articulate the head end of slide bar 3, width when first supporting head 1 and second supporting head 2 open is greater than inner sleeve 5's internal diameter, inner sleeve 5 to promote when the head end of slide bar 3 slides first supporting head 1 and second supporting head 2 are close to each other, inner sleeve 5 to the gliding distance of head end of slide bar 3 is big more, and first supporting head 1 and second supporting head 2 are closed and are tighter, finally carry the position of working a telephone switchboard. First clamping head 1 and second clamping head 2 all with slide bar 3, slide bar 3 is connected with earth connection 12 again to the ground connection of wiring position has been realized. After the outer sleeve 11 has slided relative to the inner sleeve 5, the non-return rack 8 is attached to the limit teeth 9, the sliding rod 3 can only move in the direction of inserting the inner sleeve 5, the first clamping head 1 and the second clamping head 2 cannot move in the direction of keeping away from the inner sleeve 5, and the inner sleeve 5 of the first clamping head 1 and the second clamping head 2 is limited and cannot release the wiring position. The contact between the backstop teeth and the limiting teeth 9 can not be released when the grounding wire 12 is pulled, and the grounding wire 12 can not be separated from the first clamping head 1 and the second clamping head 2 when pulled by external force. After the first clamping head 1 and the second clamping head 2 are clamped and positioned, the outer sleeve 11 and the inner sleeve 5 can be immediately stopped to be pushed, the non-return rack 8 is clamped and matched with the limiting teeth 9 at the moment, and the first clamping head 1 and the second clamping head 2 can be fixed at a plurality of opening angles. In the process of removing the grounding device after the operation is finished, a worker grasps the outer sleeve 11 to pull the grounding device in the direction away from the wiring position, and the sliding rod 3 and the inner sleeve 5 are limited, so that the outer sleeve 11 slides relative to the inner sleeve 5 under the pulling action force, the gear 6 and the cam 7 are driven to rotate, the protruding part 15 of the cam 7 is far away from the non-return rack 8 after rotating, and the limiting effect between the sliding rod 3 and the inner sleeve 5 is relieved. Spring 4 is equipped with in the inner skleeve 5, spring 4 promotes inner skleeve 5 is to keeping away from the direction of 3 head ends of slide bar removes, and under the effort of spring 4 and hand pulling, inner skleeve 5 removes to the direction of keeping away from first centre gripping head 1 and second centre gripping head 2, and first centre gripping head 1 and second centre gripping head 2 lose the limiting displacement of inner skleeve 5 gradually to loosen the wiring position gradually. Besides firm connection and difficult falling, in the invention, when in operation, the outer sleeve 11 is held to insert the take-down device to the wiring position, the take-down device can be clamped, and then the outer sleeve 11 is held to pull up the take-down device to separate from the wiring position, thereby achieving the beneficial effects of simple and convenient operation and design conforming to human engineering.
Specifically, the outer side wall of the inner sleeve 5 is provided with a first sliding groove 13, the inner side wall of the outer sleeve 11 is provided with a first sliding block 14, and the first sliding block 14 slides in the first sliding groove 13. When the outer sleeve 11 slides relative to the inner sleeve 5, the first sliding block 14 slides along the first sliding groove 13, and the first sliding block 14 is always in the first sliding groove 13 in the sliding process, so that the outer sleeve 11 and the inner sleeve 5 are prevented from being separated from each other, the relative rotation of the outer sleeve 11 and the inner sleeve 5 in the sliding process is also avoided, and the rack 10 can be accurately meshed with the gear 6 in the sliding process.
Specifically, the tail ends of the first clamping head 1 and the second clamping head 2 are provided with protrusions 15, and the protrusions 15 are located between the first clamping head 1 and the second clamping head 2. The protrusions 15 of the first and second clamping heads 1 and 2 may prevent the bus bar from being separated from between the two clamping heads when clamping the bus bar.
Optionally, a U-shaped elastic clip 16 is arranged between the first clamping head 1 and the second clamping head 2, the elastic clip 16 is connected with the protrusion 15, and a wavy anti-slip structure 17 is arranged on a side wall of the elastic clip 16. In the process that the first clamping head 1 and the second clamping head 2 clamp the wiring position, the elastic clamp 16 firstly contacts with the wiring position, the elastic clamp 16 deforms after clamping to clamp the wiring position, the wavy anti-skidding structure 17 is further arranged on the side wall of the elastic clamp 16 to improve friction force, and the grounding device is further prevented from being separated from the wiring position. The spring clip 16 also has a tendency to spread the first gripping head 1 and the second gripping head 2 apart.
Specifically, the inner sleeve 5 and the outer sleeve 11 are both made of insulating materials. Preventing electric shock accidents.
Specifically, an end cap 18 is provided at the end of the inner sleeve 5, and the grounding wire 12 passes through the end cap 18. The end cap 18 is provided with a through hole through which the ground wire 12 passes. The end cap 18 covers part of the space of the inner sleeve 5 and can play a role of protection.
Specifically, the inner walls of the two sides of the head end of the inner sleeve 5 are provided with second sliding grooves 19, the first clamping head 1 and the second clamping head 2 are aligned with one of the second sliding grooves 19, and the first clamping head 1 and the second clamping head 2 slide along the second sliding grooves 19. The stability that first clamping head 1 and second clamping head 2 are close to each other is promoted in the improvement, prevents that inner skleeve 5 from taking place to rotate for first clamping head 1 and second clamping head 2 relatively.
Specifically, the sliding rod 3 is provided with a cavity 20, and the gear 6, the cam 7 and the non-return rack 8 are all installed in the cavity 20. The above components are disposed within the cavity 20 to facilitate installation and protection of the above components.
Specifically, the outer side wall of the sliding rod 3 is provided with a third sliding groove 21, and the rack 10 penetrates from the third sliding groove 21 to be meshed with the gear 6. The rack 10 slides from the third runner 21 into engagement with the gear wheel 6, enabling the gear wheel 6 to be provided with a slightly smaller size, thereby avoiding friction between the gear wheel 6 and the inner wall of the inner sleeve 5. Meanwhile, the outer diameter of the sliding rod 3 can be matched with the inner sleeve 5, so that the sliding stability of the sliding rod 3 is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The low-voltage grounding device of the low-voltage distribution box is characterized by comprising a first clamping head, a second clamping head, a sliding rod, a spring, an inner sleeve, a gear, a cam, a non-return rack, limiting teeth, a rack, an outer sleeve and a grounding wire, wherein the first clamping head and the second clamping head are hinged at the head end of the sliding rod, the sliding rod is connected with the grounding wire, the sliding rod slides in the inner sleeve, the spring is arranged in the inner sleeve, the spring pushes the inner sleeve to move towards the direction far away from the head end of the sliding rod, the inner sleeve pushes the first clamping head and the second clamping head to be close to each other when sliding towards the head end of the sliding rod, the sliding rod is provided with the gear, the cam and the non-return rack, the gear is fixedly connected with the cam, the gear is rotatably connected with the sliding rod, one end of the non-return rack is connected with the sliding rod, the non-return rack is elastic, the inner sleeve is provided with limiting teeth matched with the non-return teeth, the outer sleeve is sleeved outside the inner sleeve in a sliding mode and provided with racks stretching into the inner sleeve and meshed with the gear, and when the gear rotates, the racks can drive the cam to push the non-return rack to be attached to the limiting teeth.
2. A low-voltage earthing device for low-voltage distribution boxes according to claim 1, characterized in that said inner sleeve has a first sliding slot on its outer side wall and said outer sleeve has a first sliding block on its inner side wall, said first sliding block sliding in said first sliding slot.
3. The low voltage grounding device of claim 1, wherein said first and second clamping heads have protrusions at their ends, said protrusions being located between said first and second clamping heads.
4. The low-voltage grounding device of a low-voltage distribution box of claim 1, wherein a U-shaped elastic clip is arranged between the first clamping head and the second clamping head, the elastic clip is connected with the protrusion, and the side wall of the elastic clip is provided with a wavy anti-slip structure.
5. The low voltage grounding device for low voltage distribution boxes of claim 1, wherein said inner and outer sleeves are made of insulating material.
6. A low-voltage earthing device for low-voltage distribution box according to claim 1, characterized in that said inner sleeve has an end cap at its end, said earth wire passing out from said end cap.
7. The low voltage grounding device of claim 1, wherein said first and second clamping heads are aligned with one of said second sliding grooves, and said first and second clamping heads slide along said second sliding grooves.
8. A low-voltage earthing device for low-voltage distribution boxes according to claim 1, characterized in that said sliding rod is provided with a cavity in which said pinion, cam and non-return rack are mounted.
9. A low-voltage earthing device for low-voltage distribution boxes according to claim 1, characterized in that said sliding bar has a third sliding slot on its external side wall, from which said rack passes to engage with said gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210755342.9A CN115000820A (en) | 2022-06-30 | 2022-06-30 | Low-voltage grounding device of low-voltage distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210755342.9A CN115000820A (en) | 2022-06-30 | 2022-06-30 | Low-voltage grounding device of low-voltage distribution box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115000820A true CN115000820A (en) | 2022-09-02 |
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ID=83020835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210755342.9A Pending CN115000820A (en) | 2022-06-30 | 2022-06-30 | Low-voltage grounding device of low-voltage distribution box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115000820A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116357365A (en) * | 2023-05-30 | 2023-06-30 | 中国矿业大学(北京) | Anchor cable tensioning device and anchor cable tension detection method |
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|---|---|---|---|---|
| CN106329172A (en) * | 2016-09-01 | 2017-01-11 | 宁波天弘电力器具有限公司 | Adjustable non-skid grounding line operating rod |
| CN207834609U (en) * | 2017-12-25 | 2018-09-07 | 海南梵思科技有限公司 | A kind of multi-angle grounding wire device |
| CN208655932U (en) * | 2018-09-07 | 2019-03-26 | 国家电网公司 | A kind of ground line non-jitter dress removes device |
| CN111244650A (en) * | 2020-04-21 | 2020-06-05 | 国家电网公司 | Anti-drop ground clamp based on sawtooth meshing structure and using method thereof |
| CN113410669A (en) * | 2021-06-18 | 2021-09-17 | 深圳盛唐懋电力技术有限公司 | Flat-end grounding wire clamp |
-
2022
- 2022-06-30 CN CN202210755342.9A patent/CN115000820A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329172A (en) * | 2016-09-01 | 2017-01-11 | 宁波天弘电力器具有限公司 | Adjustable non-skid grounding line operating rod |
| CN207834609U (en) * | 2017-12-25 | 2018-09-07 | 海南梵思科技有限公司 | A kind of multi-angle grounding wire device |
| CN208655932U (en) * | 2018-09-07 | 2019-03-26 | 国家电网公司 | A kind of ground line non-jitter dress removes device |
| CN111244650A (en) * | 2020-04-21 | 2020-06-05 | 国家电网公司 | Anti-drop ground clamp based on sawtooth meshing structure and using method thereof |
| CN113410669A (en) * | 2021-06-18 | 2021-09-17 | 深圳盛唐懋电力技术有限公司 | Flat-end grounding wire clamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116357365A (en) * | 2023-05-30 | 2023-06-30 | 中国矿业大学(北京) | Anchor cable tensioning device and anchor cable tension detection method |
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