SECONDARY LAMP BULB HOLDER OF MINER'S LAMP
The utility model relates to a secondary lamp bulb holder of miner's lamp, comprising a lamp holder; the lamp holder is provided with a screw joint used for fixing lamp bulbs; the bottom of lamp holder is provided with two conductive metal plates which are used as a positive plate and a negativ...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The utility model relates to a secondary lamp bulb holder of miner's lamp, comprising a lamp holder; the lamp holder is provided with a screw joint used for fixing lamp bulbs; the bottom of lamp holder is provided with two conductive metal plates which are used as a positive plate and a negative plate of a secondary lamp bulb holder; one end of each of the metal plates is fixed on the bottom of the lamp holder; the other end is fixed on the fixing frame in the lamp cap casing of a miner's lamp. The secondary lamp bulb holder of miner's lamp is installed in the lamp cap casing of the miner's lamp; when a main lamp bulb goes out owing to malfunction, a switch can be rotated to make a secondary lamp bulb work. The utility model overcomes the unsafe factor and trouble when the main bulb goes out owing to malfunction or other reasons. |
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