JPH03217742A - Duct exhaust fan - Google Patents

Abstract

PURPOSE:To make duct piping easier and make piping which cause the increase of draft resistance due to a duct unnecessary by a method wherein a second connecting body, which is attached further downward by a joining device to a first connecting body which is attached downward to a fixing plate which is suspension-fixed on a ceiling wall, is turnable on the vertical surface, using the joining device as pivot. CONSTITUTION:On an anchor bolt 2 which is erected on a ceiling wall 1 on the ceiling, a fixing plate 3 is horizontally suspended and fixed, and on the lower surface of the fixing plate 3, a rod shaped first connecting body 4 is attached downward. At the lower end of the first connecting body 4, a second connecting body 6 with the same bar shape is attached further downward by a joining device 5. The second connecting body 6 can turn using the joining device 5 as pivot and can control-set the heights of an adapter for air intake 10 and adapter for air exhaust 12 on a frame 8 which is fixed on the tip of the second connecting body 6 under different conditions. For example, when piping for an air intake duct 9 and air exhaust duct 11 cannot be done at the same height being obstructed by obstacles 13 or 13' on the ceiling, construction can be easily performed by turning the second connecting body 6.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a duct ventilation fan that ventilates a room through a duct communicating with the room and the outdoors.

Conventional technology Traditionally, most houses were single-family houses, and many of the single-family houses were also made of wood. This wooden house had wooden walls, a soft material for the ceiling, and a large space under the attic, so there were ventilation inlets and exhaust holes on the walls and ceiling of the attic. There was a wide range in which the opening could be installed, and the duct ventilation fan could be installed at any location that would not interfere with its performance.

For this reason, conventional duct ventilation fans have been installed as shown in FIG.

That is, a box-shaped frame 101 containing a built-in blower 100 is suspended from an anchor bolt 106 fixed to the ceiling wall in a ceiling with sufficient space, and a suction adapter 102 is installed on one side of the frame. A suction duct 104 communicating with the room is connected, and an exhaust adapter 103 provided on the other opposing side is connected with an exhaust duct 106 communicating with the outdoors. At this time, since the attic space is wide, the piping of the suction duct 104 and the exhaust duct l-105 is difficult to install.
It can be arbitrarily determined in consideration of the performance of the duct ventilation fan, etc.

When the duct ventilation fan with the above configuration is operated, the blower 1
Indoor air was sucked in by 00, sent into the frame 101 from the suction adapter 102 through the suction duct 104, passed through the exhaust duct 106 from the exhaust adapter 103, and was exhausted to the outside.

Problems to be Solved by the Invention In recent years, due to the soaring price of land, the number of housing complexes has been increasing more than single-family houses.Moreover, there has been a demand for higher airtightness, and walls and ceilings have been made of hard materials such as concrete. As the situation has changed, the locations for installing ventilation inlets and exhaust outlets have become limited, and the number of obstacles in the attic has also increased. As a result, the ducts could not be installed easily, and the construction work was done by using soft ducts and bending them at large angles to avoid obstacles, which was very time-consuming and required large ventilation holes in the ducts. In some cases, adequate ventilation could not be obtained.

The present invention has been made with the above-mentioned problems in mind, and an object of the present invention is to facilitate the duct piping of a duct ventilation fan, and to eliminate the need for piping that would lead to an increase in ventilation resistance due to the duct.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention includes a second connecting body attached to the connecting body of the first means further downward via a joining means, and this second connecting body. The second connecting body has a structure of a duct ventilation fan that is rotatable on a vertical plane using the combining means as a fulcrum.

A second means for achieving the above object includes a fixing plate suspended and fixed to a ceiling wall, a first connecting body attached downward from the fixing plate, and a first connecting body attached to the first connecting body. The second connecting body is attached further downward via the combining means, and the frame is suspended and fixed to the second connecting body via the second combining means and has a built-in blower, The second connecting body is rotatable on a vertical plane using the first combining means as a fulcrum, and the frame is configured as a duct ventilation fan that is rotatable around the second connecting body as a central axis. It is something.

Effect: Due to the configuration of the first means, even if the heights of the openings on the indoor side and the outdoor side where the ends of the suction duct and exhaust duct are connected for communication are different, or even if there is an obstacle in the middle of the piping, the second means By rotating the connecting body in an appropriate position, piping can be done without having to bend the duct significantly.

Depending on the configuration of the second means, in addition to the above situation, even if there are openings on the indoor side and the outdoor side at specific positions, the frame can be rotated around the second connecting body to an appropriate position. This will allow piping to be done without having to bend the duct significantly.

Embodiment First, an embodiment according to the first means of the present invention will be described based on FIGS. 1 and 2.

Anchor bo A/}2 installed in the ceiling wall 1 in the attic,
A fixing plate 3 is suspended and fixed horizontally, and a rod-shaped first connecting body 4 is attached to the lower surface of the fixing plate 3 so as to face downward. A second connecting body 6 having the same rod shape is attached to the lower end of the first connecting body 4 via a joining means 6 so as to face further downward. A box-shaped frame 8 containing a blower 7 is fixed to the lower end of the second connector 6. A suction adapter 10 is provided on one side of the frame 8 to connect a suction duct 9 to communicate with the suction port of the blower 7 in the frame 8, and an exhaust duct 11 is provided on the other side facing the one side. An exhaust adapter 12 is provided that connects the exhaust gas to communicate with the discharge port of the blower 7. The second connecting body 6 can be rotated using the combining means 5 as a support, and the heights of the suction adapter 1o and the exhaust adapter 12 of the frame 8 fixed to the tip can be adjusted to different heights. can.

In the above configuration, when the duct ventilation fan is suspended from the ceiling wall 1 and the suction and exhaust ducts}9.11 are installed,
For example, as shown in FIG. 1, if the suction duct 9 and the exhaust duct 11 cannot be installed at the same height due to an obstruction 13 or 13' in the attic, the second connection body 6 The construction work can be easily carried out by rotating the suction adapter 10 and exhaust adapter 12 of the frame 8 until they reach a height that allows straight piping of the suction duct 9 and exhaust duct 11. Therefore, since there is no need to bend the suction and exhaust ducts 9.11 significantly, the ventilation resistance in the ducts will not increase and the ventilation capacity will not decrease.

Next, an embodiment according to the second means of the present invention will be described in sections 3 to 3.
This will be explained based on FIG.

In contrast to the embodiment according to the first means, this embodiment has a second method.
The structure differs in that the frame 8 is attached to the connecting body 6 via the second combining means 14. The second combining means 14 is the fifth
As shown in the figure, it consists of a cylindrical part 16 fixed to the frame 8, and a rotating part 16 that is provided at the lower end of the second connecting body 6 and rotates while sliding on the inner peripheral surface of the cylindrical part 16.

In the above configuration, it is also possible to pipe the suction and exhaust ducts 9.11 without bending in the same situation as the above-mentioned attic situation described in the embodiment according to the first means, but in addition to this, , suction and exhaust ducts}
9. If the openings on the indoor and outdoor sides to which the tips of By rotating the second connecting body 6 as the center point to a position where the pipe 11 can be piped without being bent significantly, the work can be easily carried out, thereby avoiding the risk of increasing ventilation resistance due to the duct. This will prevent a decrease in ventilation capacity.

Effects of the Invention As is clear from the above description of the embodiments, according to the present invention, the heights of the indoor and outdoor openings to which the tips of the suction and exhaust ducts are connected are different, or when the duct piping If there is something in the ceiling that obstructs the ventilation, or if the opening is in a specific location and it is difficult to install it elsewhere, bend the duct to the extent that increases ventilation resistance and reduces ventilation capacity. The effect is that duct piping can be easily installed.

[Brief explanation of drawings]

Fig. 1 is an installation front view of a duct ventilation fan showing an embodiment of the first means of the present invention, and Fig. 2 shows a combined part of the first connection body and the second connection body of the duct ventilation fan of the same embodiment. side view, 3rd
The figure is a front view of the installation of a duct ventilation fan showing an embodiment of the second means, FIG. 4 is a plan view of the installation of the duct ventilation fan of the same embodiment, and FIG. FIG. 6 is a partially cutaway perspective view of the combining means and a front view of the installation of a conventional duct ventilation fan. 1...Ceiling wall, 3...Fixing plate, 4...
. . . first connecting body, 5 . . . combining means, 6.
...Second connection body, 7...Blower, 8.
...Frame, 14...Second combining means.

Claims (2)

[Claims] (1) A fixed plate that is suspended and fixed to the ceiling wall, a first connecting body that is attached downward from the fixed plate, and a connecting body that is further downwardly attached to the first connecting body via a joining means. It consists of an attached second connecting body and a frame that is suspended and fixed to this second connecting body and has a built-in blower, and
The connecting body is rotatable on a vertical plane using the joining means as a fulcrum. (2) A fixed plate that is suspended and fixed to the ceiling wall, a first connecting body that is attached downward from this fixed plate, and further downwardly connected to this first connecting body via a first combining means. It consists of a second connecting body attached toward the second connecting body, and a frame that is suspended and fixed to the second connecting body via a second joining means and has a built-in blower, and the second connecting body is attached to the second connecting body. The duct ventilation fan is rotatable on a vertical plane about the first combining means as a fulcrum, and the frame is rotatable about the second connecting body as a central axis.