JPS6130107Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a ventilation device that is installed in the ceiling of a building or the like to ventilate indoor contaminated air through duct piping, and particularly relates to a duct ventilation fan having a sliding exhaust frame that is easy to install.

In conventional duct ventilation fans that are installed in the ceiling and provide ventilation through duct piping, the duct joint is generally connected to the exhaust port provided on the side surface of the main body frame with screws. However, duct ventilation fans are generally installed in mid-to-high-rise residences. Furthermore, mid-to-high-rise housing has a reinforced steel structure, and its lifespan significantly exceeds that of duct ventilation fans.

That is, there is a demand from the market for improvements in the ease of attaching and detaching duct ventilation fans. Recently, there has also been a demand for a structure suitable for changes in construction procedures, such as installing a duct ventilation fan from the indoor side after installing a ceiling board.

In view of the above-mentioned circumstances, an object of the present invention is to provide a duct ventilation fan that is easy to install and remove and has a simple configuration.

In the present invention, an exhaust port 2 is provided on one side of a rectangular main body frame 1, and a predetermined gap 1 is provided between the main body frame 1 and the main body frame 1.
5, a pair of exhaust frame guides 3 and 4 are provided, and a bent portion 12 is formed by bending the lower portions of the exhaust frame guides 3 and 4 in a direction sandwiching the gap 15. duct fitting 8
Slide the slide plate 10 equipped with
It is constructed so that it can be clipped onto the surface of the main body frame 1, improving the ease of installation.

Hereinafter, one embodiment of the configuration of the present invention will be described based on FIGS. 1 to 3.

In FIG. 1, reference numeral 1 denotes a main body frame, and a relatively large-area exhaust port 2 is provided on the side surface of the main body frame 1, and a plurality of bar rings 5 protruding inward from the main body frame 1 are provided around the exhaust port 2. We are prepared. Furthermore, exhaust frame guides 3 and 4 are provided on the main body frame 1 so as to face the surface having the exhaust port 2. A gap 15 is formed between the exhaust frame guides 3 and 4. The lower end portions of the exhaust frame guides 3 and 4 are cut and bent so as to protrude toward the surface having the exhaust port 2, forming a cut and bent portion 12 that sandwiches a gap 15.

On the other hand, the exhaust frame 6 is made up of a slide plate 10 and a duct joint 8 attached to the slide plate 10. The slide plate 10 has a crank-shaped side surface.
Relatively large diameter opening 11 and this opening 11
A plurality of protrusions 7 are provided around the periphery. On the other hand, the joint 8 is provided with a shutter 13. The flange of the duct joint 8 is provided with a plurality of guide holes 9 that are slightly larger than the protrusion 7, and when these guide holes 9 are engaged with the protrusion 7, the shutter 13 of the duct joint 8 is closed. The shutter shaft 13 is horizontal and the shutter plate is in a position where it automatically closes in the direction of gravity. After being positioned in this manner, the duct joint 8 is integrally fixed to the slide plate 10 by means such as welding.

On the opposite side of the duct joint 8, an elastic body 14 made of, for example, a corpus cavernosum body and having an opening that matches the opening 11 is stretched.

Next, the aforementioned bur ring 5, protrusion 7 and guide hole 9
The relationship is such that the duct joint 8, the exhaust port 2, and the opening 11 are aligned with each other in relative dimensions.

On the other hand, although not shown inside the main body case 1,
It is equipped with a blade attached to the motor shaft, and an orifice with an air suction port for forming a pressure chamber is provided at the bottom of the blade, and a grill is further provided on this orifice to form a general duct ventilation fan. .

The operation of the duct ventilation fan configured as described above will be explained below.

Fit both ends of the exhaust frame 6 previously attached to the ceiling into the gaps 15 between the exhaust frame guides 3 and 4 of the main body frame 1, and push the main body case 1 in the direction of the arrow (up) in Fig. 3 while sliding it. The elastic body 14 flexes and slides, and the centers of the exhaust port 2 and the duct joint 8 are aligned and stopped at the flange portion 16. At this final stage, the cut and bent portions 12 of the exhaust frame guides 3 and 4 are designed to sandwich the gap 15, so the elastic deformation force of the cut and bent portions 12 causes the exhaust frame 6 to have relatively strong elasticity toward the main body frame 1 side. It is something that is pressed.

On the other hand, if the duct joint 8 is to be installed alone, this can be done by screwing a screw into the burring 5 through the guide hole 9.

As explained above, the present invention provides a duct ventilation fan in which an exhaust port 2 is provided on one side of a rectangular main body frame 1, and a predetermined distance is provided between the main body frame 1 and the exhaust port 2, which extends vertically on the surface having the exhaust port 2. A pair of exhaust frame guides 3 and 4 having a gap 15 is provided, and a bent portion 12 is formed by bending the lower portions of the exhaust frame guides 3 and 4 in a direction to sandwich the gap 15. The slide plate 10 provided with the duct joint 8 is slid in and the side end of the slide plate 10 is clipped between the bent portion 12 and the surface of the main body frame 1. can be inserted and attached to the slide plate 10 in a sliding manner, and the main body frame 1 is held down with elasticity, so it is securely held.
Moreover, it has the effect that it can be achieved with a simple configuration.

[Brief explanation of the drawing]

FIG. 1 is a perspective view illustrating an embodiment of the present invention;
FIG. 2 is a sectional view of a main part of one embodiment, and FIG. 3 is a sectional view illustrating the operation of one embodiment. 1... Body frame, 2... Exhaust port, 3, 4...
...Exhaust frame guide, 6...Exhaust frame, 8...Duct joint, 10...Slide plate, 12...Bending portion.

Claims (1)

[Scope of utility model registration request] In duct ventilation fans that are installed in the ceiling of buildings, etc., and ventilate indoor contaminated air by duct arrangement,
An exhaust port 2 is provided on one side of the rectangular main body frame 1, and a pair of exhaust frame guides 3 and 4 are provided on the surface having the exhaust port 2, extending vertically and having a predetermined gap 15 between them and the main body frame 1. A bent portion 12 is formed by bending the lower part of the exhaust frame guides 3 and 4 in a direction to sandwich the gap 15, and a slide plate 10 equipped with a duct joint 8 is slid onto these exhaust frame guides 3 and 4. Insert this slide plate 1
1. A duct ventilation fan characterized in that a side end portion of the duct 0 is clipped onto the bent portion 12 and the surface of the main body frame 1.