CN110459884B - Secondary safety isolation tool for current terminal - Google Patents
Secondary safety isolation tool for current terminal Download PDFInfo
- Publication number
- CN110459884B CN110459884B CN201910834154.3A CN201910834154A CN110459884B CN 110459884 B CN110459884 B CN 110459884B CN 201910834154 A CN201910834154 A CN 201910834154A CN 110459884 B CN110459884 B CN 110459884B
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- CN
- China
- Prior art keywords
- base
- terminal
- secondary safety
- insulating rod
- insulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000002955 isolation Methods 0.000 title claims abstract description 35
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- 239000011810 insulating material Substances 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 6
- 230000007547 defect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification 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
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
Landscapes
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
The invention discloses a secondary safety isolation tool for a current terminal, and aims to provide the secondary safety isolation tool for the current terminal, which has good universality. The insulating rod comprises a plurality of insulating blocks made of insulating materials and insulating rods used for connecting the insulating blocks; the isolation block comprises a base and a plug-in part which is arranged at one end of the base and used for blocking the terminal block slide block; the base is provided with a through hole for the insulating rod to pass through, and the insulating rod is in friction engagement with the through hole; the base is parallelly arranged on the insulating rod in a penetrating mode through the upper through holes of the base. The invention is suitable for secondary isolation of terminal blocks with various specifications.
Description
Technical Field
The invention relates to the technical field of power maintenance equipment, in particular to a secondary safety isolation tool for a current terminal.
Background
In power enterprises, safety technical measures are important guarantee measures for guaranteeing safe and stable development of overhaul and maintenance work of power equipment, and isolation of live terminal blocks and outlet terminal blocks is one of the most common safety measures in overhaul and maintenance work of secondary circuits such as control, measurement and protection. At present, terminal strip isolation is basically carried out by adopting an insulating tape bonding mode, and in the process, the problems that the tape is not firmly bonded and falls off, the terminal is stained after the tape is bonded and the like often occur. Aiming at the defects, a device special for secondary isolation of the terminal strip appears in the market, and the isolating device is basically of an integrated structure, is generally only suitable for the terminal strip with single specification, and has poor universality. Therefore, in the overhaul and maintenance work of the secondary circuit, the isolation devices with various specifications are required to be carried, so that the carrying is very inconvenient, the time and the labor are wasted when the isolation devices are found on site, and the situation that the isolation devices with the corresponding specifications cannot be found often exists, so that the overhaul and maintenance work efficiency is greatly reduced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a current terminal secondary safety isolation tool with good universality.
In order to solve the technical problems, the invention is realized by the following technical scheme:
a secondary safety isolation tool for a current terminal comprises a plurality of isolation blocks made of insulating materials and insulating rods used for connecting the isolation blocks; the isolation block comprises a base and a plug-in part which is arranged at one end of the base and used for blocking the terminal block slide block; the base is provided with a through hole for the insulating rod to pass through, and the insulating rod is in friction engagement with the through hole; the base is parallelly arranged on the insulating rod in a penetrating mode through the upper through holes of the base.
Preferably, the base is provided with a wing plate for covering the wiring terminals at two sides of the terminal block.
Preferably, an operation hole is formed in the wing plate and at a position corresponding to the locking screw of the terminal block wiring terminal.
Preferably, the wing plate is provided with a clamping block extending to a locking screw of the terminal block wiring terminal.
Preferably, the end of the clamping block is provided with a first chamfer.
Preferably, a lip which is convenient to hold is arranged on one end of the base away from the plug-in part.
Preferably, a step avoiding the sliding block locking screw is arranged on the insertion part and at a position corresponding to the sliding block locking screw.
Preferably, the end of the insertion portion is provided with a second chamfer.
Preferably, annular grooves for breaking the insulating rod are formed in the insulating rod at equal intervals.
Compared with the prior art, the invention has the following advantages:
the invention can be assembled on site according to the length of the terminal strip, thereby greatly improving portability of carrying and improving the maintenance efficiency of the terminal strip. Meanwhile, the invention can further realize the function of preventing false stitch removal and reduce the problem caused by false stitch removal.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a first embodiment of the present invention.
Fig. 2 is a schematic structural view of the insulating rod of fig. 1.
Fig. 3 is a schematic structural view of the spacer in fig. 1.
Fig. 4 is a schematic diagram of the structure of the added isolation block in fig. 1.
Fig. 5 is a schematic structural view of a second embodiment of the present invention, in which only the spacer is shown.
Fig. 6 is a schematic structural view of a third embodiment of the present invention, in which only the spacer is shown.
Fig. 7 is a schematic view of a conventional terminal block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention. In the following description, for clarity of presentation of the structure and operation of the present invention, description will be made with reference to the accompanying drawings by means of various directional words, but words such as "front", "rear", "left", "right", "upper", "lower" and the like should be interpreted as words of convenience and not as limiting words.
As shown in fig. 7, the conventional terminal block is marked as follows, and a terminal block slider 21, a terminal locking screw 22, and a slider locking screw 23 are shown.
Example 1
The secondary safety isolation tool for the current terminal shown in fig. 1 to 4 comprises three isolation blocks 1 made of insulating materials and an insulating rod 2 for connecting the isolation blocks 1; the isolation block 1 comprises a base 3 and a plug-in part 4 which is arranged at one end of the base 3 and used for blocking a terminal row sliding block; the base 3 is provided with a through hole 5 for the insulating rod 2 to pass through, and the insulating rod 2 is in friction engagement with the through hole 5, so that the insulating rod 2 and the base 3 cannot be automatically separated; the base 3 is arranged on the insulating rod 2 in parallel through the upper through holes 5.
In order to improve the convenience of disassembly, a lip 10 which is convenient to hold is arranged on one end of the base, which is far away from the plug-in part 4, and the specific structure of the lip is shown in the figure.
In order to further improve the reliability of the plugging and jogging, the step 11 avoiding the sliding block locking screw is arranged on the corresponding position of the sliding block locking screw on the plugging part 4, and the middle structure can further reduce the volume of the isolation block.
In order to improve the convenience of use, the end of the plug-in part 4 is provided with a second chamfer 12, and the second chamfer is used for guiding, so that the plug-in part is convenient to insert quickly.
As a further improvement, the annular cutting grooves 13 for breaking the insulating rod 2 are formed in the insulating rod 2 at equal intervals, the length of the insulating rod can be adjusted on site according to the length of the terminal strip during use, and interference caused by overlong length of the insulating rod during use is reduced. The annular slot may have a pitch equal to the thickness of one spacer (the thickest spacer), or may have a pitch equal to the thickness of two spacers, or may have other pitch lengths. Obviously, when the length of the insulating rod is insufficient, two or more insulating rods can be adopted to form two or more groups of isolating tools for combined use.
Obviously, the isolating blocks in the example can be increased or decreased according to the requirement, as shown in fig. 4, wherein ten isolating blocks are adopted to form a set of isolating tools.
Example 2
The current terminal secondary safety isolation tool shown in fig. 5, wherein the base 3 is provided with a wing plate 6 for covering the terminals on both sides of the terminal block, can avoid the situation that the terminal block locking screw is erroneously removed when the slider locking screw is detached, and is basically the same as that of the embodiment 1.
As a further improvement, a clamping block 8 extending out of the locking screw of the terminal block wiring terminal is arranged on the wing plate 6, and a first chamfer 9 is arranged at the end part of the clamping block 8. The fixture block can be embedded into the upper groove of the locking screw of the terminal block wiring terminal, so that the installation stability is further improved.
Example 3
The secondary safety isolation tool for the current terminal shown in fig. 6, wherein the operation hole 7 is arranged on the wing plate 6 and corresponds to the locking screw of the terminal block wiring terminal, and the structure can avoid the situation that the wiring terminal locking screw is erroneously removed and can realize the disassembly of the wiring terminal locking screw when needed. The remainder was substantially the same as in example 2.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (6)
1. A secondary safety isolation tool for a current terminal is characterized in that: comprises a plurality of isolation blocks (1) made of insulating materials and insulating rods (2) used for connecting the isolation blocks (1); the isolation block (1) comprises a base (3) and an inserting part (4) which is arranged at one end of the base (3) and used for blocking the terminal strip sliding block; a through hole (5) for the insulating rod (2) to pass through is formed in the base (3), and the insulating rod (2) is in friction engagement with the through hole (5); the base (3) is parallelly arranged on the insulating rod (2) in a penetrating way through the upper through hole (5); wing plates (6) which cover the wiring terminals on two sides of the terminal strip are arranged on the base (3); a clamping block (8) extending out of the locking screw of the terminal strip wiring terminal is arranged on the wing plate (6); annular cutting grooves (13) for breaking the insulating rod (2) are formed in the insulating rod (2) at equal intervals.
2. The current terminal secondary safety isolation tool of claim 1, wherein: an operation hole (7) is formed in the wing plate (6) and corresponds to the locking screw of the terminal block wiring terminal.
3. The current terminal secondary safety isolation tool of claim 1, wherein: the end part of the clamping block (8) is provided with a first chamfer angle (9).
4. The current terminal secondary safety isolation tool of claim 1, wherein: a lip (10) which is convenient to hold is arranged at one end of the base (3) away from the plug-in connection part (4).
5. The current terminal secondary safety isolation tool of claim 1, wherein: the insertion part (4) is provided with a step (11) avoiding the sliding block locking screw at the position corresponding to the sliding block locking screw.
6. The current terminal secondary safety isolation tool of claim 1, wherein: the end part of the plug-in connection part (4) is provided with a second chamfer (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910834154.3A CN110459884B (en) | 2019-09-04 | 2019-09-04 | Secondary safety isolation tool for current terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910834154.3A CN110459884B (en) | 2019-09-04 | 2019-09-04 | Secondary safety isolation tool for current terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110459884A CN110459884A (en) | 2019-11-15 |
| CN110459884B true CN110459884B (en) | 2024-02-23 |
Family
ID=68490731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910834154.3A Active CN110459884B (en) | 2019-09-04 | 2019-09-04 | Secondary safety isolation tool for current terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110459884B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510392B (en) * | 2020-11-25 | 2022-09-02 | 云南电网有限责任公司电力科学研究院 | Safety measure isolation device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001167825A (en) * | 1999-12-07 | 2001-06-22 | Kawamura Electric Inc | Terminal block for primary transmission wire |
| CN203491485U (en) * | 2013-08-30 | 2014-03-19 | 国家电网公司 | Secondary circuit wiring terminal strip short-circuiting plug for power plant or transformer station |
| CN106992450A (en) * | 2017-04-26 | 2017-07-28 | 国网福建省电力有限公司 | For the mistaken collision preventing isolating tool and partition method of voltage circuit secondary terminals |
| CN209018417U (en) * | 2018-06-28 | 2019-06-25 | 惠州市铂蓝德科技有限公司 | Pot cover for electric pressure cooking saucepan detection switch and its electric pressure cooking saucepan in place |
| CN209184056U (en) * | 2018-11-15 | 2019-07-30 | 珠海优特电力科技股份有限公司 | The isolating device of terminal block and screen cabinet with it |
| CN209217274U (en) * | 2018-08-02 | 2019-08-06 | 广东电网有限责任公司 | A kind of anti-mis-insertion tool for terminal block measurement |
| CN209327405U (en) * | 2018-12-29 | 2019-08-30 | 云南电网有限责任公司电力科学研究院 | A relay protection secondary circuit maintenance terminal |
| CN210156568U (en) * | 2019-09-04 | 2020-03-17 | 云南电网有限责任公司昆明供电局 | Secondary safety isolation tool for current terminal |
-
2019
- 2019-09-04 CN CN201910834154.3A patent/CN110459884B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001167825A (en) * | 1999-12-07 | 2001-06-22 | Kawamura Electric Inc | Terminal block for primary transmission wire |
| CN203491485U (en) * | 2013-08-30 | 2014-03-19 | 国家电网公司 | Secondary circuit wiring terminal strip short-circuiting plug for power plant or transformer station |
| CN106992450A (en) * | 2017-04-26 | 2017-07-28 | 国网福建省电力有限公司 | For the mistaken collision preventing isolating tool and partition method of voltage circuit secondary terminals |
| CN209018417U (en) * | 2018-06-28 | 2019-06-25 | 惠州市铂蓝德科技有限公司 | Pot cover for electric pressure cooking saucepan detection switch and its electric pressure cooking saucepan in place |
| CN209217274U (en) * | 2018-08-02 | 2019-08-06 | 广东电网有限责任公司 | A kind of anti-mis-insertion tool for terminal block measurement |
| CN209184056U (en) * | 2018-11-15 | 2019-07-30 | 珠海优特电力科技股份有限公司 | The isolating device of terminal block and screen cabinet with it |
| CN209327405U (en) * | 2018-12-29 | 2019-08-30 | 云南电网有限责任公司电力科学研究院 | A relay protection secondary circuit maintenance terminal |
| CN210156568U (en) * | 2019-09-04 | 2020-03-17 | 云南电网有限责任公司昆明供电局 | Secondary safety isolation tool for current terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110459884A (en) | 2019-11-15 |
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