JP2592604Y2 - Ceiling mounted detector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling-mounted detector embedded in a ceiling of a building such as an office, a hotel, a hospital, and the like.

[0002]

2. Description of the Related Art Conventionally, in buildings and the like,
Various detectors such as temperature and humidity detectors, infrared detectors, and fire detectors are embedded and installed in the ceiling and wall to control air conditioning and prevent theft and fire. As a mounting structure of this type of detector, the most common method is to fit a case to which a sensor is mounted in a concave portion provided on a wall or the like and fix the case by a fastening means such as a screw (eg, Japanese Utility Model Laid-Open No. 3-4).
No. 2544). Further, as another method, for example, an attachment device disclosed in Japanese Utility Model Publication No. 3-44544 is also known. In this mounting device, a mounting bracket bent in a U-shape is mounted on a back side of a case body by a set screw so as to be able to undulate, and the mounting bracket and a flange provided on a front surface of the case main body are combined with a ceiling plate or the like. The case body is fixed by sandwiching the mounting surface of the case.

[0003]

[Problems to be Solved by the Invention] However, the former method of fixing by screwing is troublesome because the screw must be screwed upward and the work is troublesome. The method of fixing with the mounting bracket has a complicated structure and requires a small number of parts. There was a problem that the number increased.

Accordingly, the present invention has been made in view of the above-mentioned conventional problems, and has as its object a simple structure, a small number of parts, easy installation, and easy removal. It is an object of the present invention to provide a ceiling-mounted detector that can easily perform operations and greatly contributes to saving construction.

[0005]

In order to achieve the above object, a first invention is to cover a plate mounting hole provided on a ceiling.
Install the iron equipment plate and the back of this equipment plate.
And a detector body which houses a sensor attached, magnetic as well as projecting the projecting portion on the mounting surface of the detector body
The projecting part is installed on the equipment plate indoors.
Protruding holes are provided, and the magnet is
The detector body is attached in close contact with the back of the
And wherein the digit. The second idea is to install it on the ceiling
A non-magnetic material plate that covers the plate mounting holes,
A housing with a detector body a sensor mounted on the back side of the equipment plate, butt to the mounting surface of the detector body
The projecting part is projected and the adhesive tape is arranged,
Providing a plate with a through hole for projecting the projecting portion into the room,
The detector body is attached by closely adhering the adhesive tape to the back surface of the equipment plate without any gap.

[0006]

In the first aspect of the present invention, the magnet fixes the detection body to the back surface of the equipment plate by magnetic force. In the second invention, the adhesive tape fixes the detector body to the back surface of the equipment plate by the adhesive force.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. FIG. 1 is a sectional view showing an embodiment of a ceiling-mounted detector according to the present invention, and FIG. 2 is a front view of the detector. In these figures, 1 is an iron equipment plate that covers a plate mounting hole 3 provided in a ceiling plate 2, 4 is a temperature / humidity detector embedded and installed in the ceiling, and the temperature / humidity detector 4 is a detector main body. A case 5 to be formed, a front cover 6 covering a front opening of the case 5, a wiring board 7 incorporated in the case 5, a sensor 8 mounted on the wiring board 7, and the like. That is, it is detachably fixed to the anti-indoor side surface 1a. The case 5 is formed in a cylindrical body open at both ends, and a flange 5A is integrally formed on the front opening so as to protrude over the entire circumference. A recess in which the front cover 6 is fitted is formed on the front of the flange 5A. 10 is recessed. At the rear end of the peripheral surface of the case 5, a plurality of slit-shaped ventilation holes 11 for communicating the inside and the outside are formed at predetermined intervals in the circumferential direction, and at the inside rear, the wiring board 7 is protected from dust and the like. The dust cover 12 is fitted and fixed. The wiring board 7 is fixed together with the front cover 6 to a board mounting portion 14 integrally provided on the inner surface of the case 5 by a plurality of set screws 13, and is connected to an external cord 15. The front cover 6 is formed in a disk shape, and the front surface forms a mounting surface, and projects in the center thereof.
A cap 16 that forms a part is integrally protruded, and
The set screw 13 is inserted around the cap 16.
A recessed screw mounting portion 17 is provided. The cap
The pump 16 protrudes into the room through a through hole 18 formed in the equipment plate 1. A plurality of intake holes 19 are formed in the circumferential surface of the cap 16 in the circumferential direction, thereby communicating the inside of the case 5 with the room. The magnet plate 9 is formed in a ring shape by a ferrite rubber magnet, and is a front surface of the front cover 6 , that is, a mounting surface.
It is tightly secured by adhesive or the like.

In mounting the temperature / humidity detector 4 having such a configuration, the cap 16 of the front cover 6 is inserted into the through hole 18 of the equipment plate 1 from the inside of the ceiling to mount the detector 3 on the equipment plate 1. I just need. Then, since the magnet plate 9 are in close contact by the magnetic force in a counter chamber side 1a facilities plate 1, the detector 4 facilities plate 1
Can be securely fixed.

Thus, the detector 4 having such a configuration is provided.
In this case, screws, mounting brackets, etc. are not required at all, and the equipment plate 1 may be one installed on the ceiling, so that the structure is simple, the number of parts is small, and The mounting operation, the change of the installation location, and the like are remarkably simple and easy, and there is an advantage that the workability can be improved.

FIG. 3 is a sectional view showing another embodiment of the present invention. This embodiment shows an example in which the equipment plate 1 is formed of a non-magnetic material such as a resin, and the detector 4 uses an adhesive tape 20 instead of a magnet plate.
Are detachably fixed to the equipment plate 21.
Since other configurations are the same as those of the above-described embodiment, the same components are denoted by the same reference numerals, and description thereof is omitted. With such a configuration, the same effect as in the above embodiment can be obtained.

Although the above embodiments have been described with reference to the case where the present invention is applied to a temperature / humidity detector, the present invention is not specified at all, and the present invention is also applied to a fire detector, an intrusion detector, and the like. Further, a plurality of different sensors can be housed and arranged in the case 5 to form a composite detector. In addition, the present invention can be variously modified and modified. For example, the case 5 has a double cylindrical structure, the outer case is detachably fixed to the equipment plate 1 with a magnet or an adhesive tape, and the sensor is stored and arranged in the inner case. However, the inner case may be fitted and accommodated in the outer case, or a ferromagnetic material such as KS steel may be used as the magnet.

[0012]

[Effect of the Invention] As described above, the ceiling-mounted detector according to the present invention allows the main body of the detector to be attached to and detached from the back side of the equipment plate by a magnet or an adhesive tape on the underside of the ceiling.
Since it is configured to be mounted, it does not require any mounting hardware, screws, etc., has a simple structure, is extremely easy to install and remove, can improve workability, and can be easily changed in installation location. Thus, the degree of freedom in changing the layout can be expanded.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a ceiling-mounted detector according to the present invention.

FIG. 2 is a front view of the detector.

FIG. 3 is a sectional view showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Equipment plate 2 Ceiling board 4 Temperature / humidity detector 5 Case 6 Front cover 7 Wiring board 8 Sensor 9 Magnet plate 20 Adhesive tape 21 Equipment plate

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masaki Hirata 2-12-19 Shibuya, Shibuya-ku, Tokyo Yamatake Honeywell Co., Ltd. (56) References JP-A-1-307899 (JP, A) JP-A Heihei 3-246429 (JP, A) Actually open 1953-48592 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) G08B 17/00-17/12 G01K 1/14 E04B 5 / 52

Claims (2)

(57) [Scope of request for utility model registration] 1. Covering a plate mounting hole provided on a ceiling.
Install the iron equipment plate and the back of this equipment plate.
And a detector body which houses a sensor attached, magnetic as well as projecting the projecting portion on the mounting surface of the detector body
The projecting part is installed on the equipment plate indoors.
Protruding holes are provided, and the magnet is
The detector body is attached in close contact with the back of the
Ceiling-mounted detector, characterized in that digit. 2. Covering a plate mounting hole provided on a ceiling.
Equipment plate made of non-magnetic material and the back of this equipment plate
And a detector body containing a sensor mounted on the side of the sensor body, and a protrusion is provided on the mounting surface of the detector body.
Adhesive tape is provided on the equipment plate,
Is provided with a through hole for projecting into the room, and the adhesive tape is
Make sure that the detector
A ceiling-mounted detector having a body attached .