JPS6032828Y2 - ventilation system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ventilation device having a configuration in which a plurality of exhaust ports are formed in an outer box and have mutually different orientations, and one of the exhaust ports is selectively connected to a duct depending on its orientation.

For example, when connecting a range ventilation fan to a duct, since the orientation of the duct differs depending on the house, multiple exhaust ports are provided in the hood body (the outer box) in different directions, and only one of them is connected. One is selectively connected to the duct depending on its orientation.

At this time, it was necessary to change the direction of the blower's fan casing so that it matched with the exhaust port connected to the duct, so the blower was removed, turned around, and then reinstalled. This installation requires supporting the heavy blower with one hand, adjusting the position of the fan casing's exhaust port with the other hand, and attaching the blower with screws, etc., which is time-consuming and disadvantageous in terms of efficiency. Met.

The present invention was developed in view of the above circumstances, and its purpose is to selectively connect the exhaust port of the outer box to the duct according to the orientation of the duct, which differs depending on the house. To provide a ventilation device capable of greatly improving installation work efficiency by holding a heavy blower in an outer box in a state in which its discharge port is correctly positioned with respect to an exhaust port.

An embodiment in which the present invention is applied to a range ventilation fan will be described below with reference to FIGS. 1 to 3.

Reference numeral 1 is a rectangular box-shaped hood main body which is an outer box, and the open lower surface of this hood is an intake port 2, and the left side, back side, and right side have different orientations by 90 degrees, but have the same height. Exhaust ports 3, 4.5 are formed.

The hood main body 1 has an exhaust port 3. 4. A duct 8 extending from the outdoor side to the mounting lower of the room wall 6.
It is selectively connected to the base according to its orientation.

9 to 11 are exhaust ports 3 to 5 on the inner surface of the hood main body 1.
12 to 14 are internally threaded parts screwed into the left and right sides of the exhaust ports 9 to 11. be.

Reference numeral 15 denotes a blower that is detachably disposed inside the hood body 1, and a fan casing 16 of this blower 15 has a bell mouth 18 attached thereto having an intake port 17 on the lower surface, and an exhaust port extending laterally from one side. A motor 22 having a rotating shaft 20 protruding into the fan casing 16 and having a centrifugal blower fan 21 fitted therein is fixed to the upper surface thereof.

Reference numeral 23 denotes a rectangular frame-shaped flange fixed to the opening edge of the exhaust port 19 of the fan casing 16 by welding or the like, and a communication port 24 is formed in the center of the flange to communicate with the exhaust port 19.

Such a flange 23 has the female threaded portions 13° 13 on both left and right sides.
It has through holes 25, 25 corresponding to the above, and U-shaped notches 26, 26 having the same width as the protruding pieces 9 to 11 are provided on both left and right sides of the lower edge at positions corresponding to the pair of protruding pieces 9 to 11. Further, a rectangular frame-shaped seal member 27 is attached to the peripheral edge of the communication port 24.

Reference numeral 28 denotes a hanging piece erected on the upper surface of the fan casing 16 on the side opposite to the exhaust port 19. This is a hanging piece that is formed on the upper surface of the hood main body 1 in correspondence with each of the exhaust ports 3 to 5, respectively. Attach the butterfly bolt 2 to either of the mounting seats 1a (only one is shown).
9 is tightened and fixed so that the blower 15 is suspended.

When such a blower 15 is assembled at a manufacturing factory, it is preliminarily installed so that the exhaust port 19 of the fan casing 16 communicates with the exhaust port 4 on the back side of the hood main body 1, and the notches 26, 26 of the flange 23 are installed. is fitted into the protruding piece 10.10, and the flange 23 is connected to the female threaded portion 13 through the through hole 25°25.
．． 13 with wing bolts 30.30.

Reference numeral 31 denotes a tapered joint pipe that is attached from outside the hood body 1 to the exhaust port to be connected to the duct 8, and is preliminary connected to the exhaust port 4 on the back side.

32 is a wind pressure release type shutter pivotally installed in the joint pipe 31; 33 is a filter for removing oil dust attached to the intake port 2;
Numeral 34 is a closing plate that is attached to the two remaining exhaust ports that are not connected to the duct 8 among the exhaust ports 3 to 5.

Now, when connecting the hood main body 1 to the duct 8, if the direction of the duct 8 matches the exhaust port 4 to which the exhaust port 19 of the fan casing 16 was preliminarily connected, for example, connect the joint in that state. To attach the hood main body 1 to the chamber wall 6 so that the pipe 30 is tightly fitted into the duct 8, the closing plate 33 may be attached to the exhaust ports 3 and 5.

Furthermore, when the direction of the duct 8 matches the exhaust port 3,
Unscrew the butterfly bolts 29 and 30 and remove the air outlet 19 of the blower 15.
Remove the notches 26, 26 of the flange 23 from the protruding piece 10.10 by lifting the sides slightly upward, and then turn the entire blower 15 approximately 90 degrees counterclockwise as shown by arrow A in FIG. Was.

Next, insert the notch 26.26 of the flange 23 into the protruding piece 9,
The flange 23 is placed on the protruding pieces 9, 9 so as to fit into the flange 23.

As a result, the blower 15 is held by the protruding pieces 9, 9, and at the same time, the notches 26, 26 are fitted to the protruding pieces 9, 9, so that the exhaust port 19 of the fan casing 16 is positioned to match the exhaust port 3. .

In this state, attach the hanging piece 28 and flange 23 to the butterfly bolt 29.
, 30, and then remove the joint pipe 31 from the exhaust port 4, connect it to the exhaust port 3 again, fit it tightly into the duct 8, and finally connect the closing plate 34, which was removed from the exhaust port 3, to the exhaust port 3. Mouth 4
All you have to do is re-cover it.

Furthermore, if the direction of the duct 8 matches the exhaust port 5, remove the blower 15 from the hood body 1 in the same manner as above, and turn the blower 15 approximately 90 degrees clockwise from the state shown in FIG. The flange 23 is placed on the protruding piece 11.11 so that the notches 26, 26 of the flange 23 fit into the protruding piece 11.11.

As a result, the blower 15 is held by the protruding piece 11.11, and at the same time, the outlet port 19 of the fan casing 16 is positioned so as to match the exhaust port 5 by fitting the notches 26, 26 to the protruding piece 11.11. .

In this state, the hanging piece 28 and flange 23 are tightened with butterfly bolts 29 and 30 in the same manner as above, the joint pipe 31 reconnected to the exhaust port 5 is tightly fitted into the duct 8, and finally the closing plate 34 is evacuated. All you have to do is re-attach it to the mouth 4.

In this way, in this embodiment, the protruding pieces 9 to 11 are provided on the peripheral edges of the exhaust ports 3 to 5, respectively, while the fan casing 1
Since the flange 23 of 6 is provided with a notch 26 that fits into the protruding piece, when attaching the hood main body 1 to the room wall 6, the blower 1
5, the blower 15 can be held by simply fitting the notch 26 of the flange 23 into the protruding piece, unlike in the past where the entire heavy blower had to be supported. can be easily installed in the hood main body 1, and the movement of the blower 15 in the left and right direction can be restricted by the cooperation of the notch 26 and the protruding piece, and the exhaust port 19 can be positioned.As a result, the exhaust port of the fan casing Unlike the conventional method, where it was tedious to adjust the position one by one, the positions of the through hole 25 and the female thread part automatically match, making it possible to not only screw the butterfly bolt 30 through the through hole 25 but also to do it quickly. obtain.

Therefore, both the effects of holding the blower 15 and positioning the exhaust port 19 act synergistically, and the blower 15 can be easily and quickly installed inside the hood body 1, greatly improving the efficiency of the installation work. .

Moreover, while producing such effects, it is also advantageous in terms of cost because only the protruding pieces 9 to 11 are additionally provided.

In addition, in this embodiment, since the protruding pieces 9 to 11 are formed to have a cross-sectional shape, when the notches 26 and 26 are fitted, they come into contact with the rising pieces of the protruding pieces of the flange 23, and the blower 15 is removed. This prevents it from coming off and makes it more securely held.

In the above embodiment, a pair of protruding pieces 9 to 11, which are separate parts from the hood body 1, are provided at the exhaust ports 3 to 5, respectively, but the protruding pieces 9 to 11 are attached to the hood body as shown in FIG. It may be formed integrally by cutting and raising 1.

Furthermore, the number of protruding pieces 9 to 11 is not limited to a pair, and only one piece may be provided at the center of the lower part of each of the exhaust ports 3 to 5.

Furthermore, the notches cannot be obtained in the above-mentioned measuring kimono in which one of the notches fits into each of the pair of protruding pieces, for example,
As shown in FIG. 5, a notch 35 is formed in the flange 23 so that the notch width is equal to the outer width between the pair of protruding pieces.
If only one notch 35 is provided, the notch 35 may be fitted into the protruding piece so that its corresponding edges contact each outer edge between the pair of protruding pieces, or as shown in FIG. Notches 36 are cut out at both left and right ends of the lower edge of the
．． 36, an insertion piece 37 having a width equivalent to the inner width between the protruding pieces may be left cut out in the center, and this insertion piece 37 may be inserted between the protruding pieces.

In addition, in the above embodiment, it was applied to a range ventilation fan, but
It can be widely applied to general ventilation equipment such as ventilation fans for ducts.

As explained above, this invention uses the exhaust port of the outer box as a duct because the direction of the duct differs depending on the house.
When selectively connected according to the orientation, a heavy blower can be held in the outer box with its discharge port correctly positioned with respect to the exhaust port, which greatly improves work efficiency. Since the structure is simple, it is possible to provide a ventilation device that can be cost-effective.

[Brief explanation of the drawing]

Figures 1 to 3 show one embodiment of the present invention, with Figure 1 being a perspective view of the whole with some parts cut away, Figure 2 being a longitudinal side view of the whole, and Figure 3 being an enlarged view of the main parts. Exploded perspective view, Figures 4 to 6
The figures are views corresponding to FIG. 3 showing other different embodiments of the present invention. In the figure, 1 is the hood body (outer box), 3 to 5 are exhaust ports, and 8
is a duct, 9 to 11 are protruding pieces, 15 is a blower, 16 is a fan casing, 19 is an exhaust port, 21 is a blower fan,
22 is a motor, 23 is a flange, and 26, 35, and 36 are notches.

Claims (1)

[Scope of utility model registration request] An outer box has a plurality of exhaust ports oriented in different directions, and one of these exhaust ports is selectively connected to a duct according to its direction, and a blower fan driven by a motor is arranged inside the fan casing. and a blower removably disposed within the outer box so that the exhaust port of the fan casing matches the exhaust port connected to the duct. A protruding piece located inside the box is provided, and a flange is provided at the air outlet of the fan casing to be held by the protruding piece, and a notch corresponding to the protruding piece is formed in the flange, so that the notch and the protruding piece are connected to each other. A ventilation device characterized in that the position of the exhaust port is determined by the cooperation of the above.