Fire alarm device
The present invention provides a fire alarm device which can prevent body falling-off caused by earthquake, etc. or stealing simply according to requirement. A fire alarm device body (2) is detachably equipped to an installation base (3) provided on a setting surface. A screw fixing structure in whi...
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| Main Author | |
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| Format | Patent |
| Language | Chinese English |
| Published |
25.07.2012
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| Subjects | |
| Online Access | Get full text |
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| Summary: | The present invention provides a fire alarm device which can prevent body falling-off caused by earthquake, etc. or stealing simply according to requirement. A fire alarm device body (2) is detachably equipped to an installation base (3) provided on a setting surface. A screw fixing structure in which a fixing screw (62) and a fixing nut (61) are used fixes the fire alarm device body (2) to the installation base. The fire alarm device (1) comprises the following components: two holding walls (43) which erects from a back plate (17) of the fire alarm device body and respectively cover two holding walls (43) that comprises two end faces of the side surface of the locking nut; a notch part (63) which is provided on the side plate of the installation base and includes the head part of the fixing screw; and a projection (44) which is set in an intersecting edge between the side surface and the end surface of the fixing nut and is next to the upper end of the edge of the holding wall that contacts with the edge of |
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| Bibliography: | Application Number: CN200910163698 |