JPS60169029A - Blower device - Google Patents

Abstract

PURPOSE:To cause a main body casing to be slidable and removable within a housing with a duct coupler being left in a duct piping system by a method wherein a removable auxiliary frame is arranged at a flange part below the main body frame. CONSTITUTION:A screw 25 is threadably engaged with a threaded part 18 of a hanger fitting 17 from within a main body frame 1, the hanger fitting 17 is supported, the main body casing 1 has an opening at its lower surface, a flange part 2 is arranged around the opening, a frame 5 is removably and threadably fitted to the flange part 2 through a speed nut 4, so that the main body casing 1 is slidably and removably arranged within the housing under a connected condition of the duct coupling 12 with the duct piping.

Description

[Detailed Description of the Invention] [Subject of the Invention] The present invention relates to an air blower installed in the ceiling, and in particular, when the main body of the device is suspended from hanging bolts buried in the ceiling slab, the equipment construction is completed. rear.

The present invention relates to a blower device suitable for removing the main body of an existing piping system twisting device indoors.

[Background of the invention]

This type of blower is generally installed in the ceiling.
It is especially known as a ventilation fan for ducts.

The installation method for such duct ventilation fans is to fix the flange part of the ventilation fan body to the mounting wooden frame from the indoor side with wood screws, and recently, to fix the hanging bracket from the outside to the top of the ventilation fan body, and to bury this in the slab in the ceiling. A commonly used method is to support the ventilator with hanging bolts, and then fix the flange portion of the ventilation fan body to the mounting wooden frame with wood screws. Connect the duct to the exhaust port of the duct ventilation fan installed in this way via the duct joint fixed with screws from the outside.
Since the ventilation fan body and duct piping system are isolated in the ceiling by a ceiling board, when replacing the main unit due to maintenance or replacement demand, it is necessary to first remove the ceiling board and proceed with the work in the reverse order of the installation procedure. There is. This was a problem that was avoided because it would require re-construction, which would incur costs for things other than ventilation fans. In view of this, recently, when fixing to a wooden mounting frame, the structure is such that the duct joint part can be separated from the main body case by sliding or screwing off from the indoor side, and the main body case can be detached from the existing piping system. It is a well-known fact that it is commercially available. However, when the main body is supported by a hanging bolt via a hanging metal fitting, it is very difficult to attach and detach the main body from the indoor side, and a means to solve this problem is desired.

[Purpose of the invention]

An object of the present invention is to eliminate the drawbacks of the prior art described above and to provide a blower device that can be easily removed indoors.

[Summary of the Invention] “The present invention has a duct joint part that can be slid and detached and matches an exhaust port arranged on the wall surface of the main body frame, and a duct joint part that can be freely screwed and removed from the inside of the main frame that is arranged on the outside of the main frame. It consists of a hanging metal fitting and a removable auxiliary frame screwed onto the lower flange of the main body frame, and by removing the decorative grille from the indoor side and unscrewing the hanging metal fitting from the inside of the main body case. This system is characterized in that the main body case can be slid toward the indoor side while leaving the duct joint part in the duct piping system.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an exploded perspective view showing essential parts of an embodiment of the present invention. In Figure 1, which shows an exploded diagram of this main part, the main body case l has a built-in ventilation part such as a fan and motor.
It is constructed of a box-like body with an opening on the lower surface, and a flange portion 2 is disposed around the opening.

The flange portion has an elongated hole 3, and a speed nut 1-4 is arranged to sandwich the elongated hole 3. A frame body 5 is removably screwed into the speed nut 4 through a plurality of small holes 6 in a frame body 5 having a cross-sectional shape. The frame body 5 has an outer circumference slightly larger than the outer circumference of the flange portion 2, and has a plurality of small holes 7 on the wall surface and relief holes 8 of the exhaust port side flange portion 2 of the main body case 1 at opposing positions. A slit 23 is provided in the hole 9 and a part of the wall corner mentioned above.
It has the following.

On the other hand, the main body case 1 described above has a discharge port 10 on the wall surface, and a slide guide 11 is arranged at a symmetrical position with the discharge port 10 as a boundary so as to be lower than the height of the main body case l. . The slot guide 11 includes a slidable duct joint 12. The duct joint part 12 includes a tapered cylindrical part 13 to which an exhaust tact is connected, and a backing 14 to maintain airtightness between the exhaust II 10 and the duct joint part 12.
and a fixing screw pilot hole 26.

On the other hand, a wall surface 15 sandwiching the exhaust port 10 of the main body frame l has a plurality of small holes 16, and a screw 25 is screwed into the threaded part 18 of the hanging fitting 17 from inside the main body frame l through the small holes 16. and supports the hanging fitting 17. The hanging fittings 17 are arranged on both wall surfaces of the main body frame, and have a plurality of elongated holes 1 into which hanging bolts 1 buried in the slab are inserted.
9.

An installed embodiment of the ventilation system constructed as described above is shown in FIGS. 2 and 3.

Figure 2 shows the upper part of the flange part 2 of the main body frame 1.
This is an installation example in which a wooden frame 20 is arranged.

Figure 3 shows a wooden frame 22 installed on the top surface of the ceiling 21 of a unit bath.
This is an example in which the system was installed with a

In FIGS. 2 and 3 as well, the notch opening in the ceiling board and the internal dimensions of the mounting wooden frame are slightly larger than the outer circumference of the frame, and the wooden frame is inserted through the small hole 7 of the frame 5. screw 24
It is fixed to the mounting wooden frame 22 to prevent a gap from occurring between the frame body 5 and the mounting wooden frame 22. Mochi Theory, Framework 5
The slit portion 23 is made of caulking material or the like to prevent gaps.

The blower device having the configuration described above operates as follows.

To explain using Figure 3, when performing main unit maintenance or replacing the main unit, remove the decorative grill (not shown) from the indoor side.
(dot-dashed line), then loosen and remove the multiple wood screws 24 fixing the frame to the mounting wooden frame, and then loosen and remove the screws 25 fixing the hanging bracket from inside the main body case. With the joint connected to the duct piping.

The main body case can be slid in and out of the room. In addition, in the case of construction as shown in Figure 2, by fixing the duct joint to the mounting wooden frame using the fixing screw pilot hole of the duct joint, the main body frame can be attached and removed very smoothly. be.

In addition, although an example of a configuration in which the frame body can be freely attached and detached from the main body frame with screws has been shown, even if it is integrated with the main body frame, it is necessary to make the hole in the ceiling board larger than the outer periphery of the frame body to attach and detach the main body frame. Since it satisfies the conditions for flexibility, we will introduce it as another example.

〔Effect of the invention〕

According to the present invention, which has the configuration and functions as explained below, even in construction where the ventilation fan main body is supported by hanging bolts via hanging fittings, the main body case can be removed from the existing duct piping system by unscrewing from the indoor side. Since it can be slid off and removed, there is no need to destroy the ceiling panel when maintaining the main body case or replacing the main body, which has the effect of minimizing construction work.

[Brief explanation of the drawing]

FIG. 1 is an exploded view for explaining the present invention in detail, and FIGS. 2 and 3 are explanatory views of an installation embodiment of the present invention. ■... Main body case, end... Frame body, 12... Duct joint part. 17... Hanging metal fittings. Figure 1 Ll 23 56'134- Liu 2 Figure 5 Figure 3') 2524

Claims (1)

[Claims] 1. A removable duct joint that matches the exhaust port arranged on the wall of the main body frame and the inside of the main body frame arranged on the outside of the cough zero body frame 11 by the air blower installed in the ceiling. A blower device comprising a removably screwed hanging metal fitting and a removably auxiliary frame screwed to a lower flange of the main body frame.