JPH0452600Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is achieved by creating a hole in the indoor ceiling material, installing a pipe that communicates the indoor and outdoor areas, and inserting it into one end of the pipe on the indoor side. This invention relates to a pipe ventilation fan that can ventilate a room.

BACKGROUND TECHNOLOGY Conventionally, a method for fixing a louver covering the indoor opening of a pipe ventilation fan that is attached to a pipe installed in a hole in a ceiling material has been to fit a louver into the main body of a pipe ventilation fan. It was common to fix the ventilation fan by screwing it into a nut that was fixed to the main body of the pipe ventilation fan.

Figure 3 shows an example of a pipe ventilation fan using this method of fixing the louver with machine screws and nuts.
In the figure, 111 is a pipe that has a hole in the ceiling material 108 and is fixed with a wooden frame 110, and a pipe ventilation fan body 101 equipped with a motor 102 having blades 103 and an orifice 104 is inserted into one end of this pipe 111 on the indoor side. The wooden frame 110 was fixed to the ceiling 108 with wood screws 109. In order to fix the louver 105 to the pipe ventilation fan main body 101 to cover the indoor opening thereof, the louver 105 is attached to a flange portion 101a formed on the outer periphery of the pipe ventilation fan main body 101.
This is completed by locking the claw 113 formed in the pipe ventilation fan body 101, and then screwing a small screw 107 into the nut 106 fixed to the pipe ventilation fan body 101 with a screwdriver or the like, so that the louver 105 does not fall into the room 112. I was getting used to it.

Problems that the invention aims to solve In this conventional configuration, the louver 1 is removed during cleaning, etc.
Each time you want to remove louver 1, prepare a screwdriver or the like, loosen machine screw 107, and remove louver 1.
05 had to be removed, and the small screw 107 was often installed in a position that was difficult to see due to the design, making it difficult to remove.

The present invention takes into consideration the above-mentioned conventional problems and provides a pipe ventilation fan that allows the louver to be easily removed without tools such as a screwdriver, and that securely fixes the louver when it is fixed to prevent it from falling. The purpose is to

Means for Solving the Problem In order to solve this problem, the present invention provides a pipe that is inserted into one end of the pipe installed indoors to communicate the indoor and outdoor areas through a hole provided in the indoor ceiling material. A ventilation fan body for pipes, a louver that covers the body of the ventilation fan for pipes from the indoor side, and a threaded portion that is screwed into a threaded portion formed at the front portion of the ventilation fan body for pipes, and is provided to sandwich the louver. This is a pipe ventilation fan consisting of an orifice.

Function With this configuration, when the louver is to be removed from the pipe ventilation fan body, it can be easily achieved by manually loosening and removing the orifice screwed into the pipe ventilation fan body, and conversely, the louver can be fixed by This is achieved by manually screwing the orifice into the pipe ventilation fan body with the louver sandwiched between the pipe ventilation fan body and the pipe ventilation fan body.

Embodiment An embodiment of the present invention will be described below based on FIGS. 1 and 2. In the figure, 9 is a pipe that has a hole in the ceiling material 8 and is fixed to the wooden frame 6 to communicate the indoor and outdoor areas.
Pipe ventilation fan main body 1 equipped with a motor 2 having
is inserted into the wooden frame 6 and fixed to the ceiling material 8 with wood screws 7. A threaded portion A1a is formed on the outer periphery of the indoor opening end 1b of the pipe ventilation fan main body 1, and an orifice 4 having a threaded portion B4a that is screwed into this threaded portion A1a connects the pipe ventilation fan main body 1 to the outdoor side. Karaou louver 5
is clamped and screwed together with the pipe ventilation fan main body 1. Also, louver 5 has orifice 4.
A stopper 5a is formed to determine the screwing stop position.

In the above configuration, when removing the louver 5 from the pipe ventilation fan main body 1, the orifice 4 screwed into the threaded portion A1a of the pipe ventilation fan main body 1
By loosening the screw part B4a and removing the orifice 4, the louver 5, which was held between the pipe ventilation fan main body 1 and the stopper of the orifice 4, can be removed.
can be removed. On the other hand, when fixing the louver 5 to the pipe ventilation fan main body 1, the procedure for removing it may be reversed. That is, fixation is achieved by screwing the orifice 4 and the pipe ventilation fan main body 1 in a state where the louver 5 is sandwiched between the pipe ventilation main body 1 and the pipe ventilation fan main body 1.

Effects of the invention As is clear from the description of the embodiments above, the present invention has an orifice attached to the pipe ventilation fan body, whereas conventionally a tool was used to remove the louver from the pipe ventilation fan body. By manually screwing them together and unscrewing them, the louver can be easily attached and detached, and the louver can be reliably fixed when attached.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view showing how a pipe ventilation fan according to an embodiment of the present invention is installed on the ceiling, Figure 2 is an exploded cross-sectional view showing how the pipe ventilation fan is installed with louvers, and Figure 3 is a conventional pipe ventilation fan. FIG. 1... Pipe ventilation fan body, 1a... Threaded part A, 4... Orifice, 4a... Threaded part B, 5...
...Luba, 9...pipe.

Claims (1)

[Scope of utility model registration request] A pipe ventilation fan body installed by being inserted into one end of the indoor side of a pipe installed to communicate the indoor and outdoor areas through a hole provided in an indoor ceiling material, a louver that covers the pipe ventilation fan body from the indoor side, and the pipe. A ventilation fan for pipes, comprising an orifice having a threaded part that is screwed into a threaded part formed in the front part of the ventilation fan main body, and an orifice sandwiching the louver between the louver and the main body of the pipe ventilation fan.