CN202084811U - Telescopic protective cover for low-voltage switch - Google Patents
Telescopic protective cover for low-voltage switch Download PDFInfo
- Publication number
- CN202084811U CN202084811U CN2011202072504U CN201120207250U CN202084811U CN 202084811 U CN202084811 U CN 202084811U CN 2011202072504 U CN2011202072504 U CN 2011202072504U CN 201120207250 U CN201120207250 U CN 201120207250U CN 202084811 U CN202084811 U CN 202084811U
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- CN
- China
- Prior art keywords
- cover body
- protective cover
- main cover
- low tension
- tension switch
- Prior art date
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Abstract
The utility model discloses a telescopic protective cover for low-voltage switches, which comprises a main cover body with a bottom face and a left side opened and an auxiliary cover body with a bottom face and a right side opened, wherein the right side of the auxiliary cover body is inserted into the main cover body through the left side opening of the main cover body, two kidney-shaped holes are formed in the horizontal direction on the front and the back side faces of the auxiliary cover body respectively, threaded holes are formed on the front and the back side faces of the main cover body and in the positions corresponding to the kidney-shaped holes, and the main cover body is movably connected with the auxiliary cover body through bolts which pass through the kidney-shaped holes and are screwed in the threaded holes. The length of the protective cover is adjusted to fit with a low-voltage switch in different installation sizes, so as to ensure that the electrified metal surfaces of the upper/lower inlet/outlet wires of the low-voltage switch are within the protection range of the protective cover, thereby improving the safety of live-line operations in power distribution systems.
Description
Technical field
The utility model 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 mainly based on switchyard, looped network station, open air station at present, wherein the open air station has accounted for more than 90% of power distribution station sum again, in the open air station mainly based on 0.4 kilovolt of low tension switch, 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, cause the position of the exposed live part of the last inlet wire of low tension switch and following outlet to have discrepancy, 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 may be difficult to all block, and still has to have the situation generation outside of live metal surface exposure.
Summary of the invention
The purpose of this utility model 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 purpose of this utility model is achieved in that
A kind of low tension switch of the present utility model protective cover that stretches, the main cover body that comprises a bottom surface and left surface opening, it is characterized in that, described flexible protective cover also comprises the secondary cover body of a bottom surface and right flank opening, the right side of this pair cover body is inserted in the inside of main cover body from described main cover body left side opening part, before the described secondary cover body, have the waist-shaped hole of a horizontal direction on the trailing flank, before the described main cover body, trailing flank is provided with the screwed hole corresponding with described waist-shaped hole, and described main cover body flexibly connects by the screw and the described secondary cover body that pass described waist-shaped hole and be threaded onto in the described screwed hole.
The above-mentioned low tension switch protective cover that stretches, wherein, the latter half of the right flank of described 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 beneficial effects of the utility model are: the length of the utility model protective cover 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; cause electric shock because of the exposed live part of having touched adjacent low tension switch when having avoided the maintainer to operate; improved the fail safe of hot line job in the distribution system; simultaneously because the utility model protection tool reasonable in design; 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 the utility model low tension switch left side;
Fig. 2 is the stereogram on the flexible protective cover right side of the utility model low tension switch;
Fig. 3 is the stereogram of the flexible protective cover of the utility model low tension switch bottom.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
See also Fig. 1 to Fig. 3, there is shown the flexible protective cover of the utility model low tension switch, 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 flexibly connects with secondary cover bodies 2 by the screws 14 that pass waist-shaped hole 21 and be threaded onto 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 the utility model protective cover on the adjacent low tension switch in the mode that main cover body 1 right flank makes progress, if run into the low tension switch of special size, unclamp 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, screw screw 11 after adjusting to appropriate length, guarantee fixedly connected between main cover body 1 and the secondary cover body 2, at this moment, slot 13,23 just in time are arranged in the low tension switch slot place at two ends up and down, make the utility model protective cover cover on the low tension switch firmly, 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 is only for the usefulness that the utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by 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, described flexible protective cover also comprises the secondary cover body of a bottom surface and right flank opening, the right side of this pair cover body is inserted in the inside of main cover body from described main cover body left side opening part, before the described secondary cover body, have the waist-shaped hole of a horizontal direction on the trailing flank, before the described main cover body, trailing flank is provided with the screwed hole corresponding with described waist-shaped hole, and described main cover body flexibly connects by the screw and the described secondary cover body that pass described waist-shaped hole and be threaded onto in the described 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 described 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 |
|---|---|---|---|
| CN2011202072504U CN202084811U (en) | 2011-06-17 | 2011-06-17 | Telescopic protective cover for low-voltage switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202072504U CN202084811U (en) | 2011-06-17 | 2011-06-17 | Telescopic protective cover for low-voltage switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202084811U true CN202084811U (en) | 2011-12-21 |
Family
ID=45345428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202072504U Expired - Fee Related CN202084811U (en) | 2011-06-17 | 2011-06-17 | Telescopic protective cover for low-voltage switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202084811U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832543A (en) * | 2011-06-17 | 2012-12-19 | 上海市电力公司 | Retractable protective cover for low-voltage switch |
| CN104009406A (en) * | 2014-06-17 | 2014-08-27 | 国家电网公司 | 10-KV load switch combination insulation shielding cover |
-
2011
- 2011-06-17 CN CN2011202072504U patent/CN202084811U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832543A (en) * | 2011-06-17 | 2012-12-19 | 上海市电力公司 | Retractable protective cover for low-voltage switch |
| CN104009406A (en) * | 2014-06-17 | 2014-08-27 | 国家电网公司 | 10-KV load switch combination insulation shielding cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20190617 |