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Fire alarm device

A technology for fire alarms and mounting bases, which is used in fire alarms, alarms, electrical fire alarms, etc., can solve the problems of theft and the main body of the fire alarm, and achieve the effect of not easy to idling

Active Publication Date: 2012-07-25
NOHMI BOSAI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, as mentioned above, although the fire alarm main body can be easily engaged or disengaged by twisting the fire alarm main body relative to the mounting base, it is necessary to consider that the fire alarm main body falls off due to an earthquake or the like or is stolen.

Method used

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Embodiment Construction

[0029] figure 1 It is the front view and top view of the fire alarm in the best embodiment of the present invention. figure 2 yes figure 1 A perspective view of the mounting base. image 3 yes figure 1 A perspective view of the main body of the fire alarm. Figure 4 yes image 3 A perspective view of the back panel and protective cover of the main body of the fire alarm. Figure 5 It is an enlarged perspective view of a stopper member and a blade portion of the present invention.

[0030] In addition, in the description of the present invention, the installation base 3 is attached to the ceiling, and the vertical direction of the ceiling is defined as the vertical direction, and the ceiling side is defined as the upward direction. Therefore, the fire alarm body 2 turns in a plane parallel to the ceiling.

[0031] Such as figure 1 As shown, the fire alarm 1 of the best embodiment of the present invention includes a fire alarm body 2 and a mounting base 3 .

[0032] Th...

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PUM

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Abstract

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 the side plate of the installation base.

Description

technical field [0001] The invention relates to a fire alarm with a fire alarm main body installed on a mounting base. Background technique [0002] This kind of fire alarm is a fire alarm installed in a single-story house, which is installed on the installation base installed on the ceiling or wall, and can be freely assembled and disassembled on the installation base and detects the fire by detecting smoke or heat. constituted by the main body of the device. (For example, refer to Japanese Patent Laid-Open No. 2003-099871). [0003] For this kind of fire alarm, the main body of the fire alarm is usually installed on the installation base by means of a twist lock mechanism. The twist lock mechanism is composed of, for example, a blade disposed on the back of the fire alarm main body, a blade seat that is disposed on the base and receives the blade on the back of the fire alarm main body, by adjusting the position of the blade and the blade seat, the The main body of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B17/00G08B17/10
CPCA62C37/50G08B17/06
Inventor 冨田寿幸
Owner NOHMI BOSAI LTD