CN201392760Y - Explosion-proof switch - Google Patents
Explosion-proof switch Download PDFInfo
- Publication number
- CN201392760Y CN201392760Y CN200920138079U CN200920138079U CN201392760Y CN 201392760 Y CN201392760 Y CN 201392760Y CN 200920138079 U CN200920138079 U CN 200920138079U CN 200920138079 U CN200920138079 U CN 200920138079U CN 201392760 Y CN201392760 Y CN 201392760Y
- Authority
- CN
- China
- Prior art keywords
- explosion
- cylindrical closed
- proof
- closed vessel
- proof 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
An explosion-proof switch relates to the technical field of switches. The explosion-proof switch comprises a cylindrical closed container, wherein through holes are formed at the upper end and the lower end of the cylindrical closed container; rubber pads which are matched with each other are mounted in the through holes; a metal contact point is arranged in each rubber pad; and a conducting liquid is filled in the cylindrical closed container. Such explosion-proof switches are provided with better explosion-proof performance.
Description
Technical field
The utility model relates to switch.
Background technology
Existing switch is made with copper sheet, utilize the copper sheet conduction, the time that this switch is used has been grown, will produce friction between the copper sheet, so, be to produce electric spark at make-and-break contact easily just, be used in factory etc. and contain the place of explosion hazard gases and just blast easily that explosion-proof performance is bad.
The utility model content
In order to overcome the bad deficiency of existing copper sheet switch explosion-proof performance, the utility model provides a kind of flame-proof switch, and this flame-proof switch has explosion-proof performance preferably.
The utility model adopts following technical scheme, and a kind of flame-proof switch comprises cylindrical closed vessel, the two ends up and down of cylindrical closed vessel have through hole, the rubber blanket that is complementary is installed in the through hole, is provided with hard contact in the rubber blanket, fill conducting liquid in the cylindrical closed vessel.
The beneficial effects of the utility model are, because this flame-proof switch comprises cylindrical closed vessel, the two ends up and down of cylindrical closed vessel have through hole, the rubber blanket that is complementary is installed in the through hole, be provided with hard contact in the rubber blanket, fill conducting liquid in the cylindrical closed vessel, therefore, this flame-proof switch has explosion-proof performance preferably.
Description of drawings
Fig. 1 is the structural representation of the utility model flame-proof switch;
Embodiment
As shown in Figure 1, a kind of flame-proof switch comprises cylindrical closed vessel 1, the two ends up and down of cylindrical closed vessel 1 have through hole, the rubber blanket 2 that is complementary is installed in the through hole, is provided with hard contact 3 in the rubber blanket 2, fill conducting liquid 4 in the cylindrical closed vessel 1.Conducting liquid 4 is a mercury.
Because fill mercury in the utility model cylindrical closed vessel 1, the two ends of cylindrical closed vessel 1 have can with the contacted hard contact 3 of mercury, in vertical state the time, the hard contact 3 of upper end does not contact with mercury at cylindrical closed vessel 1, and the utility model switch is off-state.When cylindrical closed vessel 1 was the level of state, the hard contact 3 at cylindrical closed vessel 1 two ends linked together with the mercury conductor, and promptly the utility model switch is opening.Therefore the utility model is safe, has explosion-proof performance preferably.
Claims (1)
1, a kind of flame-proof switch, comprise cylindrical closed vessel (1), it is characterized in that: the two ends up and down of cylindrical closed vessel (1) have through hole, the rubber blanket (2) that is complementary is installed in the through hole, be provided with hard contact (3) in the rubber blanket (2), fill conducting liquid (4) in the cylindrical closed vessel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920138079U CN201392760Y (en) | 2009-04-26 | 2009-04-26 | Explosion-proof switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920138079U CN201392760Y (en) | 2009-04-26 | 2009-04-26 | Explosion-proof switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201392760Y true CN201392760Y (en) | 2010-01-27 |
Family
ID=41599582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920138079U Expired - Fee Related CN201392760Y (en) | 2009-04-26 | 2009-04-26 | Explosion-proof switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201392760Y (en) |
-
2009
- 2009-04-26 CN CN200920138079U patent/CN201392760Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20100426 |