JPS6038104Y2 - ventilation grill - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a ventilation system for a bathroom or the like, and in particular to an improvement in the piping structure of a drain discharge pipe in a ventilation fan disposed inside the ceiling.

As shown in FIG. 1, this type of ventilation system is equipped with a ventilation fan 5 inside the ceiling of a room with high humidity, such as a bathroom, and a duct 2 connected to the ventilation fan 5 is opened in the ceiling. A grill 1 having a large number of ventilation holes is connected to the bathroom, and when a ventilation fan 5 is operated, humid air in the bathroom is discharged from the grill 1 to the outdoors via ducts 2 and 6.

Such a ventilation system is equipped with a drain discharge pipe 7 to discharge the condensate accumulated in the ventilation fan 5. Conventionally, this drain discharge pipe 7 runs from the ventilation fan 5 through the inside of the ceiling and inside the bathroom wall 8. , has a piping structure led to a drainage pipe 9 in the bathroom.

However, in the conventional piping structure of the drain discharge pipe as described above, it is necessary to extend the drain discharge pipe 7 for a long time inside the ceiling and then pass it through the wall 8, which is a very troublesome and time-consuming work. Since the discharge pipe 7 itself needs to be long, it is expensive, has poor workability, and is disadvantageous in terms of cost.

Therefore, in view of the above-mentioned conventional circumstances, the present invention greatly simplifies the piping work of the drain discharge pipe by connecting the drain discharge pipe to the grille connected to the ceiling opening of the duct. The purpose of the present invention is to provide a ventilation system that has excellent workability and is advantageous in terms of cost.

Hereinafter, embodiments of the present invention will be described based on FIGS. 2 to 4.

In FIG. 2, 18 is a bathroom, 16 is a ceiling board, 14 is inside the ceiling, 5 is a ventilation fan installed inside the ceiling, and 2 and 6 are exhaust ducts connected to the exhaust inlet and outlet of the ventilation fan 5, respectively. The duct 2 is bent downward, extends toward the ceiling plate 10, and is connected to a grill described later, and the duct 6 is led outdoors.

10 is a grill connected to the ceiling opening of the duct 2;
It is constructed as shown in FIGS. 3A and 3B.

That is, the IOA is a box-shaped grill member with an open upper surface, and a large number of slit-shaped exhaust holes 10a are provided on the lower surface.

IOB is a duct connection port member fixed with screws 12 to the open opening on the top surface of the grill member 10A, and has a large diameter duct connection port 10b.
is formed.

13 is a hole for screwing the grill 10 to the periphery of the opening 16A of the ceiling plate 16 as shown in FIG. 2, and 11 is a small-diameter drain discharge hole formed in a part of the outer peripheral flange portion 10C of the connection port member 10B. It is a pipe connection port.

In this grill 10, the connection port member 10B side is inserted from the bathroom 18 into the ceiling interior 14 through the opening 16A of the ceiling plate 16, and the flange portion 10C of the member 10B is brought into contact with the periphery of the opening 16A of the ceiling plate 16. Screwed down.

Then, the tip of the duct 2 is connected to the connection port member 10B, and the drain discharge pipe 17 led from the ventilation fan 5 is connected to the drain discharge pipe connection port 11 facing the ceiling interior 14 from the opening 16A of the ceiling plate 16. Connecting.

In this configuration, the drain collected in the ventilation fan 5 drips from the drain discharge pipe 17 into the grill member 10A of the grill 10, and further drips into the bathroom 18 through the exhaust hole 10a of the grill member 10A, where it is discharged. That's why.

According to the drain discharge pipe piping structure configured as described above, the drain discharge pipe 17 and the connection port 11 are connected using the opening 16A, and the piping work can be easily performed only inside the ceiling. Since the length 17 itself can be shortened, piping workability is excellent and material costs are also reduced.

Furthermore, repairs and inspections of the drain discharge pipe 17 can be performed only inside the ceiling, which greatly simplifies the work compared to conventional ones.

In addition, in the case where the grille connection port member 10B of the grille 17 is integrally molded from synthetic resin, etc., when molding the grille connection port member 10B, the
As shown in FIG. The grill 17 can be used for different situations.

Furthermore, as shown in FIG. 4C, the connection port 11 may be provided not only in the flange portion of the grill connection port member 10B but also in the peripheral wall portion, in short, it may be provided in a portion of the grill 17 facing the inside of the ceiling.

As explained above, according to the present invention, by a simple improvement in which the drain discharge pipe is connected to the grill, piping work for the drain discharge pipe can be performed extremely easily, and there is no need to extend the drain discharge pipe itself. Since there are no holes, it can be shortened, which has a great practical effect of reducing piping work efficiency and material costs.

[Brief explanation of the drawing]

Figure 1 is a diagram showing the conventional drain discharge pipe piping structure;
Figure 3 shows the drain discharge pipe piping structure according to the present invention.
The figures are views showing the grill structure in the same structure as above, A is a plan view, B is a front sectional view, and FIGS. 4A to 4C are longitudinal sectional views showing other embodiments of the grill of the present invention. 2... Duct, 5... Ventilation fan, 10.
...Grill, 10b...Duct connection port,
11... Drain pipe connection port, 14...
Inside the ceiling, 16...Ceiling board, 17...
Drain discharge pipe, 18...Bathroom.

Claims (2)

[Scope of utility model registration request] (1) In a ventilation grill comprising a ventilation fan inside the ceiling of a bathroom or the like, and a grille provided at the ceiling opening of a duct connected to the ventilation fan, the grille is provided with a large-diameter duct connection port; In the part facing the inside of the grill ceiling,
A ventilation grill characterized in that a small-diameter connection port is provided for a drain discharge pipe led from the ventilation fan, so that drain can fall directly from inside the grill into a bathroom or the like. (2) The scope of the utility model registration claim, characterized in that the drain outlet pipe connection port is closed by a thin walled portion that is integrally molded during grill molding, and the thin walled portion is selectively punched out. The ventilation grill described in paragraph 1.