CN201392760Y - Explosion-proof switch - Google Patents

Explosion-proof switch Download PDF

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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
Application number
CN200920138079U
Other languages
Chinese (zh)
Inventor
杨小芝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN200920138079U priority Critical patent/CN201392760Y/en
Application granted granted Critical
Publication of CN201392760Y publication Critical patent/CN201392760Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

Flame-proof switch
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).
CN200920138079U 2009-04-26 2009-04-26 Explosion-proof switch Expired - Fee Related CN201392760Y (en)

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)

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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