JP2546959Y2 - Flame detector fixture - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flame detector mounting device capable of confirming a monitoring direction (warning area) of a flame detector in a fire alarm system.

[0002]

2. Description of the Related Art A fire detector for detecting a fire using a sensor for detecting ultraviolet rays and the like emitted from a flame has been conventionally used in fire alarm equipment. This flame detector has
A sensor is attached to the sensor body with its monitoring direction fixed. This monitoring range extends as the distance from the sensor increases in the monitoring direction, and is usually about 100 ° in viewing angle and about 25 to 35 m in distance. Conventionally, such a flame detector is directed directly below the ceiling surface, and a large number of monitoring ranges are overlapped with each other so that a blind spot does not occur in a monitoring area having a predetermined height (1.2 m) from the floor surface. Was installed.

[0003]

However, in the case where a wide monitoring area is provided, the sensor 1 installed on the wall 3 as shown in FIG. By installing the flame detector 1, it is possible to cover the entire monitoring area with a small number of flame detectors 1, and it is necessary to install the flame detector 1 in a predetermined monitoring direction 4. In particular, when the flame detector 1 is installed obliquely, the monitoring direction 4 is required. Confirmation was not easy.

[0004]

SUMMARY OF THE INVENTION The present invention is a mounting device for attaching a flame detector main body to an installation surface such as a wall surface, a ceiling, etc., wherein a locking piece fixed to the flame detector main body has a center in a monitoring direction. The mounting direction of the flame detector, which is provided with a reflecting mirror provided to be perpendicular to the axis, facilitates confirmation of the monitoring direction.

[0005]

When the flame detector is installed, the monitoring direction can be easily confirmed based on the reflected light of the reflecting mirror of the fixture provided perpendicular to the monitoring direction of the flame detector.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a state in which a flame detector is attached to a fixture according to the present invention. FIG. It is a side view in the state where the sensor was attached.

FIG. 1 shows a mounting device which is embedded in a wall surface to install the flame detector 1 at an angle. The mounting device is roughly divided into three members, namely, a housing 10, a support 11, and a locking piece 12. It is composed of

The housing 10 is formed of a metal box or the like of an embedded box type. An opening 13 is provided at one end so that at least a part of the flame detector 1 can be stored. A rectangular flange 14 having a plurality of mounting holes extends around the opening 13. It is a decorative plate for hiding the surroundings of the embedded hole when it is attached to a wall or the like.

A support 11 is attached to the bottom of the housing 10 by screws or the like, and the support 11 is erected and fixed. At the other end of the support 11, a locking piece 1 is
2 is rotatably supported. The angle of the rotation of the locking piece 12 can be adjusted while the thumb screw 15 screwed to the shaft 16 is loosened, and is fixed by tightening the thumb screw 15.

The locking piece 12 is provided with a seat 17 for fixing the flame detector 1 main body. The flame detector 1 is screwed through a screw hole formed in the receiver 17. In addition, a reflecting mirror 18 directed to the monitoring surface side is provided in a portion extending outside the outer periphery of the flame detector 1 attached to the receiving seat 17.

The reflecting mirror 18 is provided so as to be perpendicular to the central axis (4 in FIG. 3) in the monitoring direction of the flame detector 1. That is, it is set so that the light ray directed from the central axis in the monitoring direction to the reflecting mirror 18 is reflected on the central axis.

FIG. 2 shows a fixture used when the flame detector 1 is installed directly below the ceiling 2 or the like.
This fixture is a support 11 consisting of a conventional sensor base.
And a support piece 1 fixed to the support 11 or the flame detector 1
A reflector 18 is provided at a portion of one end of the support piece 12 extending from the outer periphery of the flame detector 1.
The reflector 18 is fixed at a position perpendicular to the center axis of the flame detector 1 in the monitoring direction.

When confirming the warning area by such a fixture, the directivity of the flame detector 1 is determined by confirming the central axis of the monitoring direction because a product of a predetermined standard measured in advance is used. be able to. For example, a laser beam or a condensing flashlight is arranged at an intersection 6 between the floor surface 5 shown in FIG. 3 and the central axis 4 of the monitoring direction of the flame detector 1, and the light beam is transmitted to the reflector 19 of the fixture. It is possible to easily confirm the central axis 4 in the monitoring direction from the position of the reflected light on the floor surface 5 when irradiated.

This invention uses a reflector having a reflection surface perpendicular to the monitoring direction on the flame detector 1, for example, a half mirror on a protective glass provided on the front surface of the sensor, or a sufficient reflected light. The same can be performed using a metal surface that gives

If the reflecting mirror 18 has a shape such as a circle, a donut or a cross, the reflected light can be easily checked.

[0015]

[Effects of the Invention] The flame detector mounting device of the present invention can be easily checked with the center axis of the monitoring direction of the flame detector attached simply by providing a reflector fixed to the flame detector.
With a flame detector whose directional characteristics are known in advance, the monitoring and warning area can be easily confirmed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a flame detector is attached to a fixture according to the present invention.

FIG. 2 is a side view showing a state where a flame detector is attached to another attachment according to the present invention.

FIG. 3 is an explanatory diagram showing a state where a flame detector is installed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flame detector 2 Ceiling 3 Wall surface 4 Central axis of monitoring direction 5 Floor surface 6 Intersection between central axis and floor surface 10 Housing 11 Support body 12 Support piece 18 Reflector

Claims (1)

(57) [Scope of request for utility model registration] An attachment for attaching a flame detector main body to an installation surface such as a wall, a ceiling surface, etc., so that a locking piece fixed to the flame detector main body is perpendicular to a central axis in a monitoring direction. An attachment for a flame detector, comprising a provided reflecting mirror.