RU185715U1 - Manual fire detector - Google Patents

Abstract

The device relates to the field of fire alarm and is intended for manual activation and transmission of an alarm signal in fire and fire alarm systems. The proposed manual fire detector contains a housing, on the front surface of which an aperture is made, in which a flat working area with an alarm button is located. In the opening in front of the working area there is a transparent shutter that protects against accidental pressing of the alarm button. The transparent shutter is meshed with the body and has the ability to press out or engage when pressed or impacted and spring to move in the opening, giving access to the alarm enable button, with the further possibility of manually shifting the transparent shutter to its original position. The technical result consists in the possibility of reusing the transparent shutter as a protection against accidental pressing of the alarm button, thereby reducing operating costs when restoring the device to its original standby mode. 5 ill.

Description

The device relates to the field of fire alarm and is intended to manually turn on and transmit an alarm in fire and fire alarm systems.

Known manual fire detector, described in patent document DE 19835318 B4, 07.26.2007, containing a housing, on the front surface of which an opening is made, in which there is a flat working area with an alarm button.

But in this design there is no protection against accidental button presses and false alarms.

A manual fire detector device, described in patent document DE 9312995 U1, 01/12/1995, comprising a housing with an opening on the front surface of which has a flat working area with an alarm button, is located in the opening in front of the working model as a prototype of the utility model a fragile transparent shutter is located in the zone, which protects against accidentally pressing the alarm button, having the ability to collapse under the influence of a button or blow, opening access to the alarm button.

With this method of accessing the alarm enable button, restoring the device to its original standby mode requires replacing the destroyed transparent protective shutter with a new one, which entails an increase in operating costs.

The technical problem to be solved is the creation of a transparent shutter in the opening on the detector’s body for the manual fire detector in front of the working area that protects against accidental pressing of the alarm button, while the transparent shutter, when it is pressed or hit, must open the access to the alarm button without breaking the ability to reuse the transparent shutter as a protection against accidental pressing of the alarm button.

The technical problem is solved by the fact that a manual fire detector is proposed, comprising a housing, on the front surface of which an opening is made, in which there is a flat working area with an alarm button, a transparent shutter is located in the opening in front of the working area, which protects against accidental pressing of the alarm button. New in the claimed device is that the transparent shutter is engaged with the body and, when exposed to it by pressing or impact, is able to disengage and move under the action of the spring in the opening, giving access to the alarm enable button, with the further possibility of manually shifting the transparent shutter to the starting position.

The technical result consists in the possibility of reusing the transparent shutter as a protection against accidental pressing of the alarm button, thereby reducing operating costs when restoring the device to its original standby mode.

In FIG. 1 shows a general view of a manual fire detector in a state where a transparent protective flap completely covers the opening in front of the working area with an alarm button.

In FIG. Figure 2 shows a general view of a manual fire detector in a state when the transparent protective flap is moved and access to the alarm enable button is open.

In FIG. 3 shows a transparent shutter.

In FIG. 4 is a front view and sections of a manual fire detector in a state where the transparent protective shutter completely covers the opening in front of the working area with an alarm button, revealing the relative position of the transparent shutter and its connection with the housing elements

In FIG. 5 is a front view and sections of a manual fire detector in a state where the transparent protective flap is shifted and access to the alarm button is opened, revealing the relative position of the transparent flap and its connection with the housing elements.

The manual fire detector contains a prefabricated housing 1 (Fig. 1, 2, 4, 5) of parts made by molding plastic, on the front surface of which an opening 2 is made (Fig. 1, 2, 4, 5), in which a transparent shutter 4 is located (Fig. 2, 3, 4, 5) in front of the working area with the alarm button 3 (Fig. 1, 2, 4, 5). The transparent shutter 4 is made by molding a transparent plastic.

In the initial state, the transparent shutter 4 through its hook 5 (Fig. 3, 4, 5) is engaged with the protrusion 8 (Fig. 4, 5) on the inner wall of the housing 1, which is an obstacle to the shift of the transparent shutter under the action of the tension spring 10 (Fig. 4, 5), one end of which is connected to the hook 6 (Fig. 3, 4, 5) of the transparent shutter 4, and the other end is connected to the hook 7 (Fig. 4, 5) on the inner wall of the housing 1. In this case the transparent shutter 4 is pressed against the opening 2 by an emphasis 9 (Fig. 4, 5) by means of a flat spring 11 (Fig. 4, 5), which prevents spontaneous stroke damper 4 from engagement with the protrusion 8.

The impact on the transparent shutter 4 by pressing or impact overcomes the pressing force by the stop 9 of the transparent shutter 4 to the opening 2 by means of a flat spring 11, bending the stop 9 and disengaging the transparent shutter 4 with the protrusion 8. In this case, the transparent shutter 4 under the action of the tension spring 10 is shifted into aperture 2, giving access to the alarm button 3.

Restoring the transparent shutter 4 to its original position, protecting against accidental pressing of the alarm enable button 3, is performed by reverse manual shift of the transparent shutter 4 until it engages with the protrusion 8.

Claims (1)

A manual fire detector containing a housing, on the front surface of which an opening is made, in which a flat working area with an alarm button is located, in the opening in front of the working area there is a transparent shutter that protects against accidental pressing of the alarm button, characterized in that the transparent shutter is in meshing with the housing and has the ability to, when exposed to it by pressing or a blow, disengage and under the action of a spring move in the opening, giving access to the alarm enable button.

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