CN109244688B - 0.4kV ground wire fastening device - Google Patents
0.4kV ground wire fastening device Download PDFInfo
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- CN109244688B CN109244688B CN201811150178.9A CN201811150178A CN109244688B CN 109244688 B CN109244688 B CN 109244688B CN 201811150178 A CN201811150178 A CN 201811150178A CN 109244688 B CN109244688 B CN 109244688B
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- bolt
- grounding
- nut
- clamping
- clamping column
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- 230000006835 compression Effects 0.000 claims abstract description 35
- 238000007906 compression Methods 0.000 claims abstract description 35
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005056 compaction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 238000009413 insulation Methods 0.000 description 8
- 210000004907 gland Anatomy 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/26—Connections in which at least one of the connecting parts has projections which bite into or engage the other connecting part in order to improve the contact
Landscapes
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention relates to the technical field of grounding wires, in particular to a 0.4kV grounding wire fastening device. The grounding device comprises a grounding stud in threaded connection with a wiring terminal, a bolt structure connected with the grounding stud through a screw structure and a grounding wire lug sleeved on the bolt structure; the bolt structure is provided with a slide bar, and the slide bar is provided with a bolt clamping column; the bolt structure is also provided with a compression nut for fastening the grounding wire lug and for clamping the bolt clamping column, and the compression nut is provided with a nut clamping column; the grounding fastening device further comprises an insulating rod operation head which is used for being clamped with the nut clamping column and fastening the compression nut. The invention realizes two-stage screwing operation, ensures that the phenomenon of mutual interference among the grounding stud, the wiring terminal, the bolt structure, the grounding wire lug and the compression nut can not occur in the screwing process, and ensures the connection reliability of the grounding wire lug.
Description
Technical Field
The invention relates to the technical field of grounding wires, in particular to a 0.4kV grounding wire fastening device.
Background
Currently, in order to ensure the safety of the storage battery in the battery cabinet, a grounding device is generally installed in the battery cabinet, so that the grounding device is connected with the battery cabinet, and then a grounding wire is installed on the grounding device, thereby ensuring the safe use of the storage battery. However, the process of installing the ground wire in the grounding device has the following problems: firstly, in order to ensure the safe performance of the grounding operation, workers have to do safety protection work, so as to avoid the mistaken touch of the electrified equipment in the operation process; secondly, in order to ensure the connection reliability of the grounding wire and the grounding device, a special tool is required to be adopted for fastening treatment; the problems can affect the working efficiency of the grounding operation, and certain potential safety hazards can exist at the same time.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a 0.4kV grounding wire fastening device.
In order to solve the technical problems, the invention adopts the following technical scheme: the 0.4kV grounding wire fastening device comprises a grounding stud in threaded connection with a wiring terminal, a bolt structure connected with the grounding stud through a screw structure, and a grounding wire lug sleeved on the bolt structure; the bolt structure is provided with a slide bar, and the slide bar is provided with a bolt clamping column; the bolt structure is also provided with a compression nut for fastening the grounding wire lug and for clamping the bolt clamping column, and the compression nut is provided with a nut clamping column; the grounding fastening device further comprises an insulating rod operation head which is used for being clamped with the nut clamping column and fastening the compression nut.
In the technical scheme, a grounding wire ear sleeve is arranged on a bolt structure, and a compression nut is clamped with a bolt clamping column; the insulation operation head is arranged on the insulation operation rod, so that the insulation operation head is clamped with the nut clamping column, the insulation operation rod is screwed to drive the integrally connected bolt structure and the grounding stud, the grounding stud is in threaded connection with the wiring terminal, and reliable connection between the wiring terminal and the grounding stud is ensured; pushing the insulating operating rod to separate the compression nut from the bolt clamping column, and screwing the insulating operating rod to screw the compression nut on the grounding wire lug so as to tightly connect the grounding wire lug with the bolt structure; through the arrangement of the structure, two-stage screwing operation is adopted, so that the phenomenon that the grounding stud and the wiring terminal are mutually interfered in the screwing process of the bolt structure, the grounding wire lug and the compression nut is avoided, and the risk of potential safety hazards in the grounding wire process is avoided; and this earth connection fastener can realize quick earth connection task to can with insulating action bars quick separation, do not influence the closing of block terminal door.
Preferably, one end of the grounding stud is provided with a first internal threaded hole in threaded connection with the wiring terminal, the other end of the grounding stud is provided with a boss structure, and the boss structure is provided with a first through hole structure penetrating through the grounding stud. In the technical scheme, the grounding stud is in threaded connection with the wiring terminal through the arrangement of the first threaded hole, and meanwhile, the grounding studs with different specifications can be replaced conveniently according to actual needs; the arrangement of the boss structure is convenient for the embedded contact between the grounding stud and the bolt structure, and the arrangement of the first through hole structure is convenient for the bolt structure to connect the grounding stud with the bolt structure from the first internal threaded hole.
Preferably, the bolt head of the bolt structure is provided with a groove structure matched with the boss structure, a second internal threaded hole is arranged in the groove structure, and the second internal threaded hole is connected with the first through hole structure through a screw structure. In this technical scheme, groove structure's setting is convenient for with bench structure assorted, and the setting of second internal thread hole is in order to be connected with first through-hole structure through the screw structure to with ground connection double-screw bolt and bolt structure zonulae occludens together.
Preferably, the compression nut comprises a cylindrical nut and a clamping groove structure which are integrally connected, a first grooving structure for allowing a bolt clamping column to pass through is arranged in the clamping groove structure, and a second grooving structure which is clamped with the bolt clamping column is arranged on the end face of the clamping groove structure; the nut clamping columns are arranged in two groups, and the nut clamping columns are symmetrically arranged on the clamping groove structure. In the technical scheme, the cylindrical nut is arranged to be in threaded connection with the first slotting structure arranged in the clamping groove structure of the bolt structure, so that the bolt clamping column can pass through the cylindrical nut and the clamping groove structure conveniently; simultaneously, the second slotting structure is convenient to clamp the bolt clamping column on the second slotting structure, when the insulating operation head is in clamping connection with the nut clamping column, the insulating operation rod is screwed, and the compression nut drives the bolt structure to rotate together, so that the grounding stud is screwed on the wiring terminal.
Preferably, the diameter of the optical rod is smaller than the diameter of the bolt rod of the bolt structure; the bolt clamping columns are arranged in two groups, and are symmetrically arranged on the outer circumferential surface of the polish rod. In the technical scheme, the diameter of the polish rod is smaller than that of the bolt rod, so that the compression nut is conveniently sleeved on the polish rod; the bolt clamping columns are symmetrically arranged on the outer circumferential surface of the polish rod and are convenient to be connected with the insulating operation head in a matching way.
Preferably, the insulating rod operating head comprises an operating head sleeve with a cavity structure, a compression block arranged in the operating head sleeve and a spring structure; one end of the spring structure is connected with the compression block, and the other end of the spring structure is connected with the bottom of the cavity structure. In this technical scheme, insulating operation head and nut card post looks joint, under the effect of spring structure, the compact heap firmly presses at gland nut's terminal surface for at the in-process of operating insulating operation pole, insulating operation head keeps firm contact with the compact heap, has avoided insulating operation head and nut card post to take place the risk that breaks away from, has guaranteed the reliable connection between gland nut and the insulating operation head.
Preferably, bayonet structures are symmetrically arranged on the circumferential surface of one end of the operating head sleeve, and the bayonet structures are respectively matched with the nut clamping columns; the other end of the operating head sleeve is provided with a connector connected with an insulating operating rod. In this technical scheme, the setting of bayonet socket structure is convenient for with nut card post looks joint, the setting of connector is convenient for with insulating action bars assorted.
Preferably, the bayonet structure comprises an opening structure and an elliptical groove structure communicated with the opening structure. In this technical scheme, the setting of first opening structure is convenient for the nut card post enter into oval groove structure in, and after the nut card post enters into first opening structure, rotatory operation head sleeve makes nut card post joint in oval groove structure.
Preferably, the operating head sleeve is symmetrically provided with two groups of guide grooves along the axial direction. Two groups of guide posts are arranged on the compaction block, and the guide posts are matched with the guide grooves. The guide post on the compact heap of being convenient for of setting up of guide slot moves along the guide slot.
Compared with the prior art, the invention has the beneficial effects that: the clamping groove structure of the bolt clamping column and the clamping groove structure of the compression nut are clamped, and the nut clamping column and the insulating operation head are clamped, so that two-stage screwing operation is realized, the phenomenon that the grounding stud and the wiring terminal are mutually interfered in the screwing process of the bolt structure, the grounding wire lug and the compression nut is avoided, and the risk of potential safety hazards easily occurring in the grounding wire process is avoided; and this earth connection fastener can realize quick earth connection task to can with insulating action bars quick separation, do not influence the closing of block terminal door.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of a grounding stud, bolt structure and compression nut of the present invention;
FIG. 3 is a cross-sectional view of an insulating rod operating head according to the present invention;
FIG. 4 is a cross-sectional view of a grounding stud of the present invention;
FIG. 5 is a schematic view of a bolt structure according to the present invention;
FIG. 6 is a schematic view of the structure of the press nut of the present invention;
fig. 7 is a schematic structural view of a compression block according to the present invention.
Detailed Description
The invention is further described below in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.
Examples
Fig. 1 to 7 show a first embodiment of a 0.4kV ground wire fastening device according to the present invention, including a ground stud 1 screwed with a connection terminal, a bolt structure 3 connected with the ground stud 1 through a screw structure 2, and a ground wire lug 4 sleeved on the bolt structure 3, where the ground wire lug 4 is used for installing a ground wire; a slide bar 5 is arranged on the bolt structure 3, and a bolt clamping column 6 is arranged on the slide bar 5; the bolt structure 3 is also provided with a compression nut 7 for tightly fixedly connecting the ground wire lug 4 and the clamping bolt clamping column 6, and the compression nut 7 is provided with a nut clamping column 8; the ground fastening means further comprises an insulating rod operating head 9 for clamping with the nut clamping post 8 and fastening the compression nut 7.
One end of the grounding stud 1 is provided with a first internal threaded hole 10 in threaded connection with the wiring terminal, the other end of the grounding stud 1 is provided with a boss structure 11, and the boss structure 11 is provided with a first through hole structure 12 penetrating through the grounding stud 1. The bolt head of the bolt structure 3 is provided with a groove structure 13 matched with the boss structure 11, a second internal threaded hole 14 is arranged in the groove structure 13, and the second internal threaded hole 14 is connected with the first through hole structure 12 through the screw structure 2.
In addition, the compression nut 7 comprises a cylindrical nut 15 and a clamping groove structure 16 which are integrally connected, a first grooving structure 17 for the bolt clamping column 6 to pass through is arranged in the clamping groove structure 16, and a second grooving structure 18 which is clamped with the bolt clamping column 6 is arranged on the end face of the clamping groove structure 16; the nut clamping columns 8 are provided with two groups, and the nut clamping columns 8 are symmetrically arranged on the clamping groove structure 16.
Wherein the diameter of the slide bar 5 is smaller than the diameter of the bolt shank of the bolt structure 3; the bolt clamping columns 6 are provided with two groups, and the bolt clamping columns 6 are symmetrically arranged on the outer circumferential surface of the sliding rod 5.
In addition, the insulating rod unit 9 includes a unit sleeve 19 having a cavity structure 22, a pressing block 20 provided in the unit sleeve 19, and a spring structure 21; one end of the spring structure 21 is connected with the compression block 20, and the other end of the spring structure 21 is connected with the bottom of the cavity structure 22.
Wherein, bayonet structures 23 are symmetrically arranged on the circumferential surface of one end of the operating head sleeve 19, and the bayonet structures 23 are matched with the nut clamping columns 8; the other end of the operating head sleeve 19 is provided with a connector 24 connected with an insulating operating rod.
In addition, the bayonet structure 23 includes an opening structure 25 and an elliptical groove structure 26 communicating with the opening structure 25.
Wherein the operating head sleeve 19 is provided with two sets of guide grooves 27 symmetrically in the axial direction. The compacting block 20 is provided with two groups of guide posts 28, and the guide posts 28 are matched with the guide grooves 27.
The specific embodiment is as follows: firstly, sleeving a grounding wire lug 4 on a bolt structure 3, and clamping a compression nut 7 with a bolt clamping column 6; the insulation operation head 9 is arranged on the insulation operation rod, so that the insulation operation head is clamped with the nut clamping column 8, the insulation operation rod is screwed to drive the integrally connected bolt structure 3 and the grounding stud 1, the grounding stud 1 is in threaded connection with the wiring terminal, and the reliable connection between the wiring terminal and the grounding stud 1 is ensured; the insulating operation rod is pushed to enable the compression nut 7 to be separated from the bolt clamping column 6, the insulating operation rod is screwed to enable the compression nut 7 to be in threaded connection with the bolt structure, the compression nut 7 is screwed on the grounding wire lug 4, and tight connection between the grounding wire lug 4 and the bolt structure 3 is achieved.
It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (5)
1. The utility model provides a 0.4kV earth connection fastener which characterized in that: the grounding device comprises a grounding stud (1) in threaded connection with a wiring terminal, a bolt structure (3) connected with the grounding stud (1) through a screw structure (2), and a grounding wire lug (4) sleeved on the bolt structure (3); a slide bar (5) is arranged on the bolt structure (3), and a bolt clamping column (6) is arranged on the slide bar (5); the bolt structure (3) is also provided with a compression nut (7) for tightly fixedly connecting the ground wire lug (4) and the clamping bolt clamping column (6), and the compression nut (7) is provided with a nut clamping column (8); the grounding wire fastening device further comprises an insulating rod operation head (9) which is used for being clamped with the nut clamping column (8) and fastening the compression nut (7); the compression nut (7) comprises a cylindrical nut (15) and a clamping groove structure (16) which are integrally connected, a first grooving structure (17) used for a bolt clamping column (6) to pass through is arranged in the clamping groove structure (16), and a second grooving structure (18) clamped with the bolt clamping column (6) is arranged on the end face of the clamping groove structure (16); the nut clamping columns (8) are provided with two groups, and the nut clamping columns (8) are symmetrically arranged on the clamping groove structure (16); the diameter of the sliding rod (5) is smaller than that of a bolt rod of the bolt structure (3); the bolt clamping columns (6) are provided with two groups, and the bolt clamping columns (6) are symmetrically arranged on the outer circumferential surface of the sliding rod (5); the insulating rod operating head (9) comprises an operating head sleeve (19) with a cavity structure (22), a compression block (20) arranged in the operating head sleeve (19) and a spring structure (21); one end of the spring structure (21) is connected with the compression block (20), and the other end of the spring structure (21) is connected with the bottom of the cavity structure (22); bayonet structures (23) are symmetrically arranged on the circumferential surface of one end of the operating head sleeve (19), and the bayonet structures (23) are matched with the nut clamping columns (8); the other end of the operating head sleeve (19) is provided with a connector (24) connected with an insulating operating rod; the operating head sleeve (19) is symmetrically provided with two groups of guide grooves (27) along the axial direction.
2. A 0.4kV ground wire fastening device according to claim 1, wherein: one end of the grounding stud (1) is provided with a first internal threaded hole (10) in threaded connection with the wiring terminal, the other end of the grounding stud (1) is provided with a boss structure (11), and the boss structure (11) is provided with a first through hole structure (12) penetrating through the grounding stud (1).
3. A 0.4kV ground wire fastening device according to claim 2, characterized in that: the bolt head of the bolt structure (3) is provided with a groove structure (13) matched with the boss structure (11), a second internal thread hole (14) is arranged in the groove structure (13), and the second internal thread hole (14) is connected with the first through hole structure (12) through the screw structure (2).
4. A 0.4kV ground wire fastening device according to claim 1, wherein: the bayonet structure (23) comprises an opening structure (25) and an elliptical groove structure (26) communicated with the opening structure (25).
5. A 0.4kV ground wire fastening device according to claim 1, wherein: two groups of guide posts (28) are arranged on the compaction block (20), and the guide posts (28) are matched with the guide grooves (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811150178.9A CN109244688B (en) | 2018-09-29 | 2018-09-29 | 0.4kV ground wire fastening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811150178.9A CN109244688B (en) | 2018-09-29 | 2018-09-29 | 0.4kV ground wire fastening device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109244688A CN109244688A (en) | 2019-01-18 |
| CN109244688B true CN109244688B (en) | 2023-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811150178.9A Active CN109244688B (en) | 2018-09-29 | 2018-09-29 | 0.4kV ground wire fastening device |
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| CN (1) | CN109244688B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571545A (en) * | 2019-09-20 | 2019-12-13 | 国网辽宁省电力有限公司营口供电公司 | Special earthing device of 400v air switch |
| CN112423532B (en) * | 2020-11-06 | 2022-02-18 | 常州亮鼎照明科技有限公司 | Strong stable LED luminotron three-parallel circuit board |
| CN113092843A (en) * | 2021-04-06 | 2021-07-09 | 广东电网有限责任公司 | Pressure plate voltage measuring device |
| CN114334561A (en) * | 2021-12-22 | 2022-04-12 | 广东电网有限责任公司 | Complete set of grounding wire for low-voltage circuit breaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0053488A1 (en) * | 1980-11-27 | 1982-06-09 | Park Royal Porcelain Company Limited | Electrical sockets |
| CN202231165U (en) * | 2011-09-16 | 2012-05-23 | 鞍钢集团矿业公司 | Tightening ground wire clamp |
| JP2014002989A (en) * | 2012-06-21 | 2014-01-09 | Sumitomo Wiring Syst Ltd | Ground terminal fitting structure |
| CN103545685A (en) * | 2013-10-17 | 2014-01-29 | 国家电网公司 | Grounding method for low voltage work |
| CN203859420U (en) * | 2014-05-05 | 2014-10-01 | 国家电网公司 | Busbar grounding wire used for 10-35kV centrally-arranged type switch cabinet |
| CN205692974U (en) * | 2016-06-16 | 2016-11-16 | 国网山东省电力公司五莲县供电公司 | Allocated radio bridge joint ground wire insulation earthing device |
| CN107645076A (en) * | 2017-10-30 | 2018-01-30 | 广东电网有限责任公司惠州供电局 | A kind of multi-angle suitable for transformer station is grounded |
| CN207459209U (en) * | 2017-12-04 | 2018-06-05 | 广东电网有限责任公司江门供电局 | A kind of Novel connecting ground wire clamp device |
-
2018
- 2018-09-29 CN CN201811150178.9A patent/CN109244688B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0053488A1 (en) * | 1980-11-27 | 1982-06-09 | Park Royal Porcelain Company Limited | Electrical sockets |
| CN202231165U (en) * | 2011-09-16 | 2012-05-23 | 鞍钢集团矿业公司 | Tightening ground wire clamp |
| JP2014002989A (en) * | 2012-06-21 | 2014-01-09 | Sumitomo Wiring Syst Ltd | Ground terminal fitting structure |
| CN103545685A (en) * | 2013-10-17 | 2014-01-29 | 国家电网公司 | Grounding method for low voltage work |
| CN203859420U (en) * | 2014-05-05 | 2014-10-01 | 国家电网公司 | Busbar grounding wire used for 10-35kV centrally-arranged type switch cabinet |
| CN205692974U (en) * | 2016-06-16 | 2016-11-16 | 国网山东省电力公司五莲县供电公司 | Allocated radio bridge joint ground wire insulation earthing device |
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| CN207459209U (en) * | 2017-12-04 | 2018-06-05 | 广东电网有限责任公司江门供电局 | A kind of Novel connecting ground wire clamp device |
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| CN109244688A (en) | 2019-01-18 |
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