| Original document(7 pages) 中文版 |
On the basis of unstability of point-support, the present invention designs a device which consists of two metal balls of different size upper and lower contacts and reset bowl, etc. The procedure of installation is as follows: pile the big ball directly upon the small one along the vertical axis, then the big ball is set by upper contact with spring and the small ball is supported by reset bowl with spring. When the device is going to suffer from a shock or impact of surrounding force, the original balance is broken so as to operate the circuit-breaker in leading ahead of the interruption of electric power supply. This device is applicable to the electrical apparatus, such as lighting equipments, cables and blaster systems etc., wherever the dangerous gas or explosive coal-dust atmosphere exists. Furthermote, this device has the features of small size, light weight, high sensitivity, perfect safety and reliability. |
Application Number
申请号 |
85106908 |
Application Date
申请日 |
1985.09.07 |
| Title 名称 |
Leading circuit-breaker device for explosion-proof lamp |
Publication Number
公开号 |
1001333 |
Publication Date
公开日 |
1986.07.02 |
| Approval Pub. Date |
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Granted Pub. Date |
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| International Classification 分类号 |
H01R33/05,H02H5/10 |
Applicant(s) Name
申请人 |
Cui Guangshun |
| Address 地址 |
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| Inventor(s) Name 发明人 |
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| Attorney & Agent 代理人 |
HUANG YUJIE |
| More information 更 多 信 息 |
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