CN203614729U - High-pressure switch box with cylinder piston - Google Patents
High-pressure switch box with cylinder piston Download PDFInfo
- Publication number
- CN203614729U CN203614729U CN201320867452.0U CN201320867452U CN203614729U CN 203614729 U CN203614729 U CN 203614729U CN 201320867452 U CN201320867452 U CN 201320867452U CN 203614729 U CN203614729 U CN 203614729U
- Authority
- CN
- China
- Prior art keywords
- pressure switch
- cylinder
- switch box
- box body
- voltage switch
- 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.)
- Expired - Fee Related
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- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model relates to the technical field of a high-voltage electrical apparatus, which is named as high-pressure switch box with a cylinder piston. The high-pressure switch box comprises a high-pressure switch box body and a cover body, wherein the cover body and the high-pressure switch box body are sealed by a sealing strip. The high-pressure switch box is characterized in that a cylinder connected with the inner wall in a sealing way is arranged in the high-pressure switch box body; the two ends of the cylinder are opened; an external vent is formed in the side wall of the outward opening of the cylinder; an internal vent is formed in the inward opening of the cylinder; a piston which can slide is arranged in the cylinder. The high-pressure switch box has the advantages that the difference between the internal pressure and the external pressure of the box body can be reduced when the environmental temperature of the sealed box body is changed, air flow in and outside the box body caused by pressure difference is reduced or prevented, and the sealing property of the box body is guaranteed.
Description
Technical field
The utility model relates to high voltage electrical apparatus technical field, particularly relates to a kind of high-voltage switch gear case.
Background technique
Existing outdoor high-voltage switch case is airtight casing; conventionally adopt sealing joint strip that casing, case lid or other attached devices are sealed; casing inner face has shielding gas; along with the variation of ambient temperature; also can there is corresponding variation in the air pressure in airtight casing; along with the poor increase of casing external and internal pressure, will exist shielding gas to leak by sealing joint strip or the risk of inside and outside gas exchange, affect normal use or the life-span of high-voltage switch gear case.
Summary of the invention
The purpose of this utility model is exactly for above-mentioned shortcoming, a kind of inside and outside gas pressure difference of casing that reduces is provided, and then reduce or avoid because the inside and outside gas communication of casing that pressure gap causes, guarantee the normal use of high-voltage switch gear case, or do not affect the high-voltage switch gear case in working life---there is the high-voltage switch gear case of piston cylinder.
The technical solution of the utility model is: the high-voltage switch gear case with piston cylinder, comprise high-voltage switch gear case body and lid, between lid and high-voltage switch gear case body, seal with sealing joint strip, it is characterized in that: in described high-voltage switch gear case body, be provided with a cylinder barrel being connected with inner wall sealing, cylinder barrel both ends open, on the sidewall of cylinder barrel opening outwardly, be provided with outer air hole, be provided with interior air hole at cylinder barrel opening inwardly, in described cylinder barrel, have slidably piston.
The beneficial effects of the utility model are: such high-voltage switch gear case has the pressure gap that can reduce in the time of seal case variation of ambient temperature inside and outside casing, reduce or avoid the inside and outside gas communication of casing causing because of pressure gap, guaranteeing the advantage of the seal of casing.
Accompanying drawing explanation
Fig. 1 the utlity model has the high-voltage switch gear box structure schematic diagram of piston cylinder.
Wherein: 1, lid 2, sealing joint strip 3, high-voltage switch gear case body 4, interior air hole 5, piston 6, cylinder barrel 7, outer air hole.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated.
As shown in Figure 1, there is the high-voltage switch gear case of piston cylinder, comprise high-voltage switch gear case body 3 and lid 1, between lid 1 and high-voltage switch gear case body 3, seal with sealing joint strip 2, it is characterized in that: in described high-voltage switch gear case body, be provided with a cylinder barrel being connected with inner wall sealing 6, cylinder barrel both ends open is provided with outer air hole 7 on the sidewall of cylinder barrel opening outwardly, be provided with interior air hole 4 at cylinder barrel opening inwardly, in described cylinder barrel, have slidably piston 5.
Claims (1)
1. there is the high-voltage switch gear case of piston cylinder, comprise high-voltage switch gear case body and lid, between lid and high-voltage switch gear case body, seal with sealing joint strip, it is characterized in that: in described high-voltage switch gear case body, be provided with a cylinder barrel being connected with side seal, cylinder barrel both ends open, on the sidewall of cylinder barrel opening outwardly, be provided with outer air hole, be provided with interior air hole at cylinder barrel opening inwardly, in described cylinder barrel, have slidably piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320867452.0U CN203614729U (en) | 2013-12-27 | 2013-12-27 | High-pressure switch box with cylinder piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320867452.0U CN203614729U (en) | 2013-12-27 | 2013-12-27 | High-pressure switch box with cylinder piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614729U true CN203614729U (en) | 2014-05-28 |
Family
ID=50767378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320867452.0U Expired - Fee Related CN203614729U (en) | 2013-12-27 | 2013-12-27 | High-pressure switch box with cylinder piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109605424A (en) * | 2018-12-14 | 2019-04-12 | 福建福夏科技有限责任公司 | A kind of glove box of gas Rapid replacement |
-
2013
- 2013-12-27 CN CN201320867452.0U patent/CN203614729U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109605424A (en) * | 2018-12-14 | 2019-04-12 | 福建福夏科技有限责任公司 | A kind of glove box of gas Rapid replacement |
| CN109605424B (en) * | 2018-12-14 | 2024-01-26 | 福州福夏电池有限责任公司 | Glove box capable of quickly replacing gas |
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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: 20140528 Termination date: 20161227 |