CN102832543A - Retractable protective cover for low-voltage switch - Google Patents
Retractable protective cover for low-voltage switch Download PDFInfo
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- CN102832543A CN102832543A CN2011101650751A CN201110165075A CN102832543A CN 102832543 A CN102832543 A CN 102832543A CN 2011101650751 A CN2011101650751 A CN 2011101650751A CN 201110165075 A CN201110165075 A CN 201110165075A CN 102832543 A CN102832543 A CN 102832543A
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- cover body
- protective cover
- main cover
- main
- low tension
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Abstract
The invention discloses a retractable protective cover for a low-voltage switch. The retractable protective cover comprises a main cover body and an auxiliary cover body, wherein the bottom surface and the left side surface of the main cover body are provided with openings, and the bottom surface and the right side surface of the auxiliary cover body are provided with openings; the right side of the auxiliary cover body is inserted to the main cover body from the opening at the left side of the main cover body; the front and the back side surfaces of the auxiliary cover body are respectively provided with one waist-shaped hole in a horizontal direction; the front and the back side surfaces of the main cover body are provided with screw holes which correspond to the waist-shaped holes; and the main cover body is movably connected with the auxiliary cover body by using bolts which run through the waist-shaped holes and are screwed in the screw holes. The length of the protective cover is adjustable, so that the protective cover is suitable for low-voltage switches in different mounting sizes, furthermore, the electrified metal surfaces of inlet and outlet wires on and under the low-voltage switch are kept to be arranged in the protection range of the protective cover, and the safety of a hot-line work in a power distribution system is enhanced.
Description
Technical field
The present invention relates to the flexible protective cover of a kind of low tension switch.
Background technology
In recent years; Along with many new sub-districts continue to bring out, corresponding low-voltage distribution station is also built following closely and is put into operation, and the low tension switch of 0.4KV is also more and more; Because the electric pressure of low tension switch has only 380V, just can guarantee safe distance not touching under the surface condition.So, when this type of switch is overhauled, often ignore the importance that safety measure is implemented, there is certain potential safety hazard.
Power distribution station is main with switchyard, looped network station, open air station mainly at present; Wherein the open air station has accounted for more than 90% of power distribution station sum again; Be main with 0.4 kilovolt of low tension switch mainly in the open air station, when low tension switch of maintenance, the charged connecting portion of inlet wire and busbar is exposed outside on the adjacent low tension switch; Following outlet and cable connection point are exposed too outside, and be very dangerous.Exist the potential safety hazard that the exposed live part of having touched adjacent low tension switch owing to the maintainer causes electric shock.
Simultaneously; To be in the position that busbar (cable) connects different because low tension switch passes in and out line when mounted up and down, causes the position of exposed live part of last inlet wire and the following outlet of low tension switch to have discrepancy, and existing protective cover can't be applicable to all low tension switches; Run into the low tension switch of special circumstances; Existing protective cover length can't be regulated, and possibly be difficult to all block, and still has to have the situation generation outside of live metal surface exposure.
Summary of the invention
The objective of the invention is to overcome the defective of prior art and a kind of low tension switch protective cover that stretches is provided; The length of this protective cover can be regulated; Be applicable to the low tension switch of various installation dimensions, the live metal surface that the assurance low tension switch passes in and out line up and down is in the protection range of protective cover.
The objective of the invention is to realize like this:
A kind of low tension switch of the present invention protective cover that stretches; The main cover body that comprises a bottom surface and left surface opening; It is characterized in that; Said flexible protective cover also comprises the secondary cover body of a bottom surface and right flank opening, and opening part is inserted in the inside of main cover body from said main cover body left side on the right side of this pair cover body, has the waist-shaped hole of a horizontal direction on the forward and backward side of said secondary cover body; The forward and backward side of said main cover body is provided with the screwed hole corresponding with said waist-shaped hole, and said main cover body flexibly connects through the screw and the said secondary cover body that pass said waist-shaped hole and be threaded onto in the said screwed hole.
The above-mentioned low tension switch protective cover that stretches, wherein, the latter half of the right flank of said main cover body and the left surface of secondary cover body has a rectangle breach, and all has two slots on the base of this rectangle breach.
The invention has the beneficial effects as follows: the length of protective cover of the present invention can be regulated; Be applicable to the low tension switch of various installation dimensions; And then guarantee that the live metal surface that low tension switch passes in and out line up and down is in the protection range of protective cover; Because of the exposed live part of having touched adjacent low tension switch causes electric shock, improved the fail safe of hot line job in the distribution system when having avoided the maintainer to operate, simultaneously because protection tool reasonable in design of the present invention; Take up an area of for a short time, make the maintainer time have enough spaces to carry out service work in maintenance.
Description of drawings
Fig. 1 is the stereogram in the flexible protective cover of low tension switch of the present invention left side;
Fig. 2 is the stereogram on the flexible protective cover right side of low tension switch of the present invention;
Fig. 3 is the stereogram of the flexible protective cover of low tension switch of the present invention bottom.
Embodiment
To combine accompanying drawing that the present invention is described further below.
See also Fig. 1 to Fig. 3; The flexible protective cover of low tension switch of the present invention has been shown among the figure; Comprise the main cover body 1 of a bottom surface and left surface opening and the secondary cover body 2 of a bottom surface and right flank opening; The right side of secondary cover body 1 is inserted in the inside of main cover body 1 from main cover body 1 left side opening part; Have the waist-shaped hole 21 of a horizontal direction on the forward and backward side of secondary cover body 2, the forward and backward side of main cover body 1 is provided with and the corresponding screwed hole 11 of secondary cover body 2 waist-shaped holes 21, and main cover body 1 is through passing waist-shaped hole 21 and being threaded onto the screws 14 and secondary cover bodies 2 flexible connections in the screwed hole 11.
In the flexible protective cover of above-mentioned low tension switch, the latter half of the left surface of the right flank of main cover body 1 and secondary cover body 2 has a rectangle breach 12,22, all has two slots 13,23 on the base of this rectangle breach 12,22.
Operation principle: during maintenance; The maintainer covers in protective cover of the present invention on the adjacent low tension switch with the mode that main cover body 1 right flank makes progress, if run into the low tension switch of special size, unclamps screw 11 earlier; Distance between vertical direction stretching main cover body 1 and secondary cover body 2 is adjusted the length of protective cover then; Adjust to the screw 11 of screwing after the appropriate length, guarantee the fixed connection between main cover body 1 and the secondary cover body 2, at this moment; Slot 13,23 just in time is arranged in the low tension switch slot place at two ends up and down; Make protective cover of the present invention cover at firmly on the low tension switch, when having avoided the maintainer to operate because of the exposed live part of having touched adjacent low tension switch causes electric shock, because the maintainer can begin the low tension switch of needs maintenance is carried out inspection operation.
Above embodiment only supplies to explain the present invention's usefulness; But not limitation of the present invention; The technical staff in relevant technologies field under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification; Therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited each claim.
Claims (2)
1. the flexible protective cover of a low tension switch; The main cover body that comprises a bottom surface and left surface opening; It is characterized in that; Said flexible protective cover also comprises the secondary cover body of a bottom surface and right flank opening, and opening part is inserted in the inside of main cover body from said main cover body left side on the right side of this pair cover body, has the waist-shaped hole of a horizontal direction on the forward and backward side of said secondary cover body; The forward and backward side of said main cover body is provided with the screwed hole corresponding with said waist-shaped hole, and said main cover body flexibly connects through the screw and the said secondary cover body that pass said waist-shaped hole and be threaded onto in the said screwed hole.
2. the low tension switch as claimed in claim 1 protective cover that stretches is characterized in that the latter half of the right flank of said main cover body and the left surface of secondary cover body has a rectangle breach, and all has two slots on the base of this rectangle breach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101650751A CN102832543A (en) | 2011-06-17 | 2011-06-17 | Retractable protective cover for low-voltage switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101650751A CN102832543A (en) | 2011-06-17 | 2011-06-17 | Retractable protective cover for low-voltage switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102832543A true CN102832543A (en) | 2012-12-19 |
Family
ID=47335566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101650751A Pending CN102832543A (en) | 2011-06-17 | 2011-06-17 | Retractable protective cover for low-voltage switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102832543A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5596174A (en) * | 1994-10-04 | 1997-01-21 | Sapienza; Joseph | Expandable electrical outlet box |
| CN101192742A (en) * | 2006-10-18 | 2008-06-04 | 艾尔坎国际有限公司 | Installation bracket for electrical box, electrical box assembly, and method of use |
| CN202084811U (en) * | 2011-06-17 | 2011-12-21 | 上海市电力公司 | Telescopic protective cover for low-voltage switch |
-
2011
- 2011-06-17 CN CN2011101650751A patent/CN102832543A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5596174A (en) * | 1994-10-04 | 1997-01-21 | Sapienza; Joseph | Expandable electrical outlet box |
| CN101192742A (en) * | 2006-10-18 | 2008-06-04 | 艾尔坎国际有限公司 | Installation bracket for electrical box, electrical box assembly, and method of use |
| CN202084811U (en) * | 2011-06-17 | 2011-12-21 | 上海市电力公司 | Telescopic protective cover for low-voltage switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121219 |