JPH0114839Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a ventilation system that has a ventilation pipe that connects the room to the outside (often outdoors).

Among the above-mentioned types of ventilation devices, there are those that have only an exhaust function and those that have a supply and exhaust function. In all of them, a ventilation pipe for ventilation (this is used as a broad concept that includes exhaust, air supply and exhaust, etc.) protrudes rearward from the back of the main body, etc., but in the previous ones, the ventilation pipe shown in Figure 1 and As shown in FIG. 2, a mounting plate 1 forms the back structure of the main body 101.
02, a flange 104 is attached to one end of the connecting cylinder portion 103.
The connecting member formed with this is fixed, and the connecting cylinder portion 1
03 and one end of the ventilation pipe 105 is simply fitted externally. Therefore, even if a small force is applied to the portion of the ventilation pipe 105 exposed to the outside, problems such as separation of the ventilation pipe 105 from the connecting member are likely to occur.

The object of the present invention is to provide a ventilation system in which the ventilation pipes can be easily installed and the ventilation pipes are stably fixed.

Next, the configuration of the present invention will be specifically explained based on an embodiment shown in the drawings.

The ventilation system as an application example of the present invention shown in the figures from FIG. 3 to FIG. be. The two ventilation pipes 1 are cantilevered side by side from a removable mounting plate 3 that forms the back surface of the main body 2, and protrude parallel to the back, and are connected to an air supply path and an exhaust path within the main body 2, respectively. I am contacting you individually. The mounting plate 3 is attached to the wall W on the indoor side wall at the mounting location by means of screws or the like.
Each ventilation pipe 1 is fixed so that the open end on the free end side faces outside. Then, attach the main body 2 to the mounting plate 3 that has been installed on the wall.
The two sides are attached, resulting in the mounting configuration shown in FIG. The ventilation system of this example is characterized by the attachment relationship between the mounting plate 3 and the ventilation pipe 1. That is,
The ventilation pipe 1 has a square flange 4 (a regular polygon with not too many angles is fine) projecting in the radial direction at its supporting end, and the mounting plate 3 has an insertion hole 5 through which the ventilation pipe 1 passes. and flange 4 of ventilation pipe 1
A recess 6 that fits into the recess 6 and a plurality of elastic holding pieces 7 that restrict detachment of the flange 4 that fits into the recess 6 are provided. The four corners of the flange 4 of each ventilation pipe 1 are formed into an arc shape, and the edges of the surface on the main body side are chamfered 8. Each recess 6 of the mounting plate 3 is formed on the inner surface of the mounting plate 3 centering on the insertion hole 5, and has a shape and depth corresponding to the shape and thickness of the flange 4 of the ventilation pipe 1. The clasp and flange 4 can be fitted together. The elastic holding piece 7 is formed by cutting and raising the four corners of the recess 6, and has a free end slightly protruding into the recess 6 toward the center of the recess 6 on the upper side of the recess 6. It is capable of elastic deformation. Note that a bulge is formed on the wall contacting side of the mounting plate 3 due to the formation of the recess 6, and if left as it is, it will not fit well with the wall surface.
A cushion material 9 is attached. Therefore, the ventilation pipe 1 is fixed to the mounting plate 3 by inserting the ventilation pipe 1 into the insertion hole 5 from the inside as shown in FIG.
After the flange 4 is shifted in shape from the recess 6 by about 90 degrees, the flange 4 is rotated counterclockwise or clockwise by about 90 degrees while being pulled toward the mounting plate 3. That is, the flange 4 lifts each elastic holding piece 7 while elastically deforming it by the chamfered portion 8, and each corner is inserted into the inside of the elastic holding piece 7 to fit into the recess 6. be. The flange 4 fitted into the recess 6 cannot rotate or be pulled out from the recess 6. Therefore, the ventilation pipe 1 integrated with the flange 4 is also extremely stable, and although it is supported on a cantilever, it is firmly fixed so that it cannot be moved by the action of some force. In addition, although FIG. 7 is an example of adaptation to a ventilation system having a single ventilation pipe 1, since this is no different from the above-mentioned embodiment, the same reference numerals as in the previous example are given in the figure. Therefore, the explanation of the configuration will be omitted.

As is clear from the above description of the embodiments, the ventilation system of the present invention has a ventilation pipe that passes through the wall of the room and faces outside at one of its open ends, and connects the ventilation pipe to the mounting surface of the main body wall. The ventilator is cantilever-supported and protruded from a mounting plate on the main body side constituting the ventilator, wherein the ventilation pipe is provided with a regular polygonal flange extending in the radial direction at the support side end, and the mounting plate is , an insertion hole through which the ventilation pipe can be inserted, a recess formed on the inner surface around the insertion hole and having a shape and depth corresponding to the shape and thickness of the flange, and a recess that fits into the recess. It is equipped with several elastic holding pieces formed inwardly at the corners of the recess to restrict the detachment of the flange, and the ventilation pipe prevents the flange from sinking into the elastic holding pieces by rotational operation, and the accompanying Since it is supported by fitting the flange into the recess, the ventilation pipe can be mounted in a manner that does not move in either the circumferential direction or the axial direction by simply rotating the ventilation pipe. The advantage is that the fixed state is highly stable due to the cantilevered structure of the tube.

[Brief explanation of the drawing]

Figures 1 and 2 are a side view and an enlarged perspective view of the main parts of a conventional ventilation system, respectively;
FIG. 3 is a partially cutaway side view of a ventilation system as an application example of the present invention, FIG. 4 is a perspective view showing the overall assembly of the mounting plate and ventilation pipe, and FIGS. FIG. 6 is an enlarged front view of the main parts showing the mounting operation and relationship between the mounting plate and the ventilation pipe, and FIG. 7 is an exploded perspective view of only the main parts showing another application example of the present invention. Note that the same reference numerals in the figures indicate the same or equivalent parts. 1... Ventilation pipe, 2... Body, 3... Mounting plate, 4
...flange, 5...insertion hole, 6...recess, 7...
...Elastic holding piece.

Claims (1)

[Scope of utility model registration request] A ventilation system in which a ventilation pipe, which penetrates the wall of the room and faces the outside with one of its opening ends, is cantilevered and protrudes from the mounting plate on the main body side, which forms the mounting surface to the main body wall. The ventilation pipe is provided with a regular polygonal flange extending in the radial direction at the supporting end thereof, and the mounting plate has an insertion hole through which the ventilation pipe can be inserted, and a hole centered around the insertion hole. a recess formed on the inner surface with a shape and depth corresponding to the shape and thickness of the flange, and a number formed inward at the corner of the recess to restrict separation of the flange fitted in the recess. Equipped with several elastic holding pieces,
1. A ventilation device characterized in that a ventilation pipe is supported by a flange being inserted into an elastic holding piece by rotational operation, and the flange fitting into a concave portion accordingly.