JP2003042527A - Outdoor terminal of ventilation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an outdoor terminal of ventilation system which contributes to realization of scheduled ventilation while avoiding generation of noise due to intrusion of outer wind or hindrance of indoor air-conditioned atmosphere. SOLUTION: The outdoor terminal of ventilation system comprises a tubular section 3 being fitted in the outdoor side open end of a duct 2 constituting a ventilation system opening to the wall surface 1 of a building, and a section 6 for covering the outdoor side opening 4 of the tubular section 3 on the outside except the lower part thereof. On the ventilation line of the tubular section 3, an open/close member 12 rotating in a vertical plane to vary the substantial opening area of the outdoor side opening 4 is provided to suspend freely. Furthermore, means 14 for intercepting outer wind acting on the rotary side of the open/close member 12 from the lower open part 5 of the cover section 6 is provided in order to prevent flapping of the open/close member 12 due to outer wind.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting cylinder part which is fitted and mounted on an outdoor open end of a ventilation system which is open to a wall surface of a building, and an outdoor side opening part of the mounting cylinder part except for a lower part thereof. The present invention relates to an outdoor terminal device for a ventilation system that includes a cover portion that covers the outdoor terminal device.

[0002]

2. Description of the Related Art An outdoor terminal of a ventilation system is mainly for preventing invasion of wind and rain from the outside (mostly outdoors) in the ventilation passage for ventilation to the inside. Some are used at the end of the ventilation passage for exhaust, and some are used for air supply, but the basic configuration is to be fitted and installed at the outdoor end of the ventilation system that opens to the wall of the building. A mounting cylinder portion and a cover portion that covers the outdoor-side opening portion of the mounting cylinder portion excluding the lower portion, and the outdoor-side opening portion of the mounting cylinder portion includes:
An open / close shutter that rotates in a vertical plane to change the opening area of the outdoor side opening is provided in a freely hanging state. For exhaust gas, the open / close shutter is in a hanging state when ventilation is stopped, closing the outdoor opening,
During ventilation, it rotates by receiving the wind pressure of the exhaust flow and opens the outdoor opening. In addition, in the case of air supply, the opening and closing shutter is in a hanging state when ventilation is stopped, and the opening area of the outdoor opening is extremely small, and it rotates by receiving the wind pressure of the air supply during ventilation by air supply, The outdoor opening is wide open.

[0003]

In the above-mentioned conventional outdoor terminal of the ventilation system, the side edge of the opening / closing shutter in the free hanging state is located on the wall side of the opening below the cover. When the outside wind blows from the open part of the cover and acts so as to dive into the side edge of the pivotal support of the open / close shutter, the open / close shutter is fanned and the outdoor side opening is closed or the opening area is very small. There is a problem that it is difficult to keep it small, and abnormal noise is generated due to the fanning.

Such a malfunction of the opening / closing shutter causes invasion of outside air or excessive air supply in a high-density house or the like in which planned ventilation is to be realized, so that proper ventilation cannot be realized, and even an air-conditioned atmosphere in the room is not achieved. Will be hindered.

The present invention has been made in order to solve the above-mentioned conventional problems, and its problems are as follows.
It is to obtain an outdoor terminal of the ventilation system that can contribute to the realization of planned ventilation, avoid the generation of abnormal noise due to the entry of outside air, and the obstruction of the air conditioning atmosphere in the room, and enhance the function of the outdoor terminal. is there.

[0006]

In order to achieve the above object, the invention of claim 1 is a mounting cylinder part fitted and mounted to an outdoor end of a ventilation system opening to a wall surface of a building, and a mounting cylinder part. For an outdoor terminal of a ventilation system that includes a cover that covers the outside of the outdoor side opening of the section except for the lower side, the outdoor side opening is rotated in a vertical plane on the ventilation line of the mounting cylinder. An opening / closing member that varies a substantial opening area of the portion is provided in a freely hanging state, and a means that includes a shielding unit that shuts off an external wind that acts on the rotating side of the opening / closing member from below the cover portion is adopted.

In order to achieve the above object, the invention of claim 2 adopts a means for constructing the shielding means in the means according to claim 1 by a cylindrical body having open ends for enclosing an opening / closing member in a free state. To do.

In order to achieve the above object, the invention of claim 3 employs means for providing the opening / closing member and the shielding means in the means according to claim 1 or 2 in the mounting cylinder portion.

In order to achieve the above object, the invention of claim 4 employs means for providing the opening / closing member and the shielding means in the cover part in the cover part according to claim 1 or claim 2.

In order to achieve the above-mentioned object, the invention of claim 5 relates to the open end on the cover part side of the cylindrical body in the above-mentioned means according to claim 2 or claim 4, in which the upper side is shorter and the lower side is longer. Adopt the means to do.

In order to achieve the above object, the invention of claim 6 provides the shielding means in the means according to claim 1 between the lower edge of the opening / closing member in the free state and the open portion below the cover portion. A means composed of plate-like bodies for separating is adopted.

In order to achieve the above object, the invention of claim 7 is a means for bringing the shielding means in the means according to any one of claims 1 to 6 and the lower edge of the open / close member in a free state close to each other. To adopt.

In order to achieve the above-mentioned object, the invention of claim 8 provides an air passage for the part by fusing the temperature fuse to the inside of the room from the opening / closing member in the means according to any one of claims 1 to 7. Adopt a means to provide a fire damper to close.

In order to achieve the above object, the invention of claim 9 is such that the opening / closing member in the means according to any one of claims 1 to 8 is rotated to the open side by the exhaust flow of the ventilation system. Adopt the means to.

In order to achieve the above object, the invention of claim 10 is such that the opening / closing member in the means according to any one of claims 1 to 8 is rotated to the open side by the air supply of the ventilation system. Adopt the means to.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. The present embodiment shown in FIGS. 1 to 7 has a wall surface 1 of a building as shown in FIG.
A tubular portion 3 for mounting, which is fitted and mounted at an open end on the outdoor side of a ventilation system by exhaust air, which is constituted by a duct pipe 2 and the like which opens at
The present invention relates to an outdoor terminal of a ventilation system that includes an opening 5 below an outdoor opening 4 of a mounting cylinder 3 and a cover 6 that covers the outside of the mounting cylinder 3. Mounting tube 3
Is configured as a cylindrical body having a flange 7 projecting in the radial direction at one end, and is fitted and attached to the outdoor side opening 4 of the ventilation system with the flange 7 facing the wall surface 1.

The cover portion 6 is formed in the shape of a hood having a one-sided roof shape, and is in close contact with the flange 7 of the mounting cylinder portion 3 at a flange 8 provided on the wall surface 1 side so that a chamber is provided in front of the mounting cylinder portion 3. It is installed so that it protrudes to the outside. In the mounting cylinder part 3, a connecting cylinder part 9 that can be fitted into the mounting cylinder part 3 from the outdoor opening 4 and a cylindrical body 10 having a slightly larger diameter than the connecting cylinder part 9 are connected with their center lines aligned. The attached tubular portion 11 is fitted and mounted by the connecting tubular portion 9 (see FIGS. 1 and 3).
The stepped portion in the stepped tubular portion 11 rotates in a vertical plane on the ventilation line of the mounting tubular portion 3 to change the substantial opening area of the outdoor side opening 4 of the mounting tubular portion 3. The opening / closing member 12 is horizontally rotatably supported at an upper portion in a freely hanging state.

The opening / closing member 12 can freely rotate to the outside of the room. However, when the opening / closing member 12 is rotated from the free hanging state to the inside of the room, the end of the rotating side contacts a stopper 13 provided near the step. It is regulated by. In this state, the mounting cylinder 3
The outdoor opening 4 is substantially closed. Stepped tube 1
As shown in FIG. 1, the tubular body 10 of No. 1 projects into the cover portion 6 by about half of the projecting amount of the cover portion 6, and the lower edge of the opening / closing member 12 and the inner surface of the tubular body 10 in the free state. Are close to each other as long as the opening / closing member 12 is allowed to rotate, and the opening / closing member 12 for the outside air blown from the opening 5 at the bottom of the cover 6 is opened.
The shield means 14 serves as a barrier against the outside air that acts on the rotating side of the opening / closing member 12. The opening / closing member 12 receives the wind pressure due to the formation of the exhaust flow in the ventilation system and rotates to the opening side (outside of the room) to substantially open the outdoor side opening 4 of the mounting cylinder 3. , Cover part 6
Although the exhaust flow is discharged to the outside from the opening 5 at the lower part of the above, it may have a single-piece structure or a divided structure as shown in the figure.

When the exhaust flow of the ventilation system stops, the opening / closing member 12
Is rotated by its own weight and is opened on the outdoor side 4 of the mounting cylinder 3.
Substantially closed. As a result, it is possible to prevent the outside air from entering the ventilation system and disturbing the ventilation volume of the planned ventilation or obstructing the air-conditioned atmosphere in the room. However, when the shielding means 14 does not function, when the outside air blows into the cover portion 6, the opening / closing member 12 is agitated by the wind and loses the function of firmly closing the outdoor side opening portion 4 of the mounting cylinder portion 3. , An abnormal noise will be generated due to the invasion of external winds into the ventilation system or agitation.

In the outdoor terminal of this embodiment, the external air blown into the cover portion 6 from below is blocked by the tubular body 10 covering the outside of the opening / closing member 12 and acts on the rotating side of the opening / closing member 12. It doesn't help. The outside air blown into the tubular body 10 is guided by the tubular body 10 and acts to press the opening / closing member 12 toward the closing side.
The external wind blocking function of 2 will be secured. Since the lower edge of the opening / closing member 12 in the free state and the inner surface of the tubular body 10 are close to each other, the outside wind does not penetrate into the opening / closing member 12 from the rotating side edge of the opening / closing member 12.

Further, the opening / closing member 12 as in the present embodiment.
By assembling the shielding means 14 and the shielding means 14 to the stepped tubular portion 11 to form a unit structure, the outdoor wind-in can be easily carried out by mounting the unit on the outdoor terminal having a simple structure including the mounting tubular portion 3 and the cover portion 6. A preventive function can be added, and it can be applied to existing outdoor terminals. By adopting a configuration in which the opening / closing member 12 and the shielding means 14 are provided in the cover portion 6, the assembling becomes easy and the cost can be reduced.

As for the cylindrical body 10, as shown in FIG. 4, the upper end is shortened and the lower side is elongated with respect to the open end on the cover portion 6 side so that the cover portion 6 having a slope and the open end of the cylindrical body 10 are separated from each other. Since the distance can be increased, the pressure loss can be reduced while maintaining the function of shielding the outside wind. The opening / closing member 12 has a function of shielding the open / close member 12 from the external wind of the cylindrical body 10.
Since it suffices to act on the turning side edge of the cover member 6, it can be constituted by the open portion 5 below the cover portion 6 and the plate-like body 15 separating the turning side edge of the opening / closing member 12 as shown in FIG. . Further, it is also possible to adopt the configuration of the tubular body 10 and the opening / closing member 12 and to store this in the mounting tubular portion 3 as shown in FIG. By adopting this configuration, there is no structure projecting into the cover portion 6, so that the pressure loss can be reduced.

As shown in FIG. 7, a normally open type fire damper 17 for closing the air passage of the temperature fuse 16 by melting the temperature fuse 16 is provided in the mounting cylinder portion 3 on the indoor side of the opening / closing member 12. Thus, the double fire protection function can be achieved, and the fire protection function of the ventilation system can be improved. In this case, the constituent members including the opening / closing member 12 are made of metal.

Embodiment 2. In the present embodiment shown in FIGS. 8 to 13, the outdoor terminal for exhaust air described in the first embodiment is configured as an outdoor terminal for air supply, and the opening / closing member is an outdoor side opening of the mounting cylinder. Without completely closing the part,
The structure is substantially the same as that of the first embodiment except that the opening area is changed according to the supply amount of the ventilation system. Therefore, the same parts as those in the first embodiment will be described in the first embodiment.
The same reference numerals as those used here are used, and the description thereof is omitted.

As shown in FIG. 8, the outdoor terminal according to the present embodiment is mounted so as to be fitted and mounted on the outdoor open end of the ventilation system by air supply, which is constituted by the duct pipe 2 and the like that open to the wall surface 1 of the building. The present invention relates to an outdoor terminal device, which includes an application tube portion 3 and an opening portion 5 below an outdoor side opening portion 4 of the attachment tube portion 3 and a cover portion 6 that covers the outside of the attachment tube portion 3. is there. What is different from the outdoor terminal of the ventilation system by exhaust air shown in the first embodiment is that the flow direction of air during ventilation is from the outdoor side to the indoor side and is opposite to that for exhaust, and the opening / closing member 12
That is, the outdoor side opening 4 of the mounting cylinder 3 is not fully closed even in the free hanging state, and the minimum opening area is maintained.

The opening / closing member 12 is attached in a freely hanging state to the opening 18 of the cylindrical portion of which the outdoor side end forming the overhang-shaped opening 18 is formed obliquely. Opening 18
A stopper 13 is provided on the opening / closing member 12, and the opening / closing member 12 can be rotated to the indoor side by the wind pressure generated by the air flow formed in the ventilation system until it abuts on the stopper 13. The shielding means 14 for preventing the opening / closing member 12 from being entangled with the outside wind is configured as the cylindrical body 10 like the exhaust means shown in the first embodiment, and is half the protrusion amount of the cover portion 6 into the cover portion 6. The protrusion functions as a barrier against the opening / closing member 12 for the outside air blown from the opening 5 at the bottom of the cover 6, and blocks the outside air acting on the rotating side of the opening / closing member 12.

In the outdoor terminal of the present embodiment, the outside air blown into the cover portion 6 from below is blocked by the tubular body 10 covering the outside of the opening / closing member 12 and acts on the rotating side of the opening / closing member 12. It doesn't help. Opening / closing member 12 in a free state
Since the lower edge of the opening and the inner surface of the tubular body 10 are close to each other, the outside wind does not penetrate from the rotating side edge of the opening / closing member 12 and the opening / closing member 12 is supported.

Further, the opening / closing member 12 as in the present embodiment.
10 and the tubular body 10 have a unit structure as shown in FIG. 10, whereby an outdoor wind intrusion prevention function can be easily achieved by mounting the outdoor terminal having a simple configuration including the mounting tubular portion 3 and the cover portion 6. It can be added and can be applied to an existing outdoor air supply terminal.

With respect to the cylindrical body 10, as shown in FIG. 11, with respect to the open end on the side of the cover portion 6, the upper side is shortened and the lower side is lengthened so that the inclined cover portion 6 and the open end of the cylindrical body 10 are separated from each other. Since the distance can be increased, the pressure loss can be reduced while maintaining the function of shielding the outside wind.

Since the function of shielding the open / close member 12 from the external wind of the cylindrical body 10 may be exerted on the rotating side edge of the open / close member 12,
As shown in FIG. 12, it may be configured by an open portion 5 below the cover portion 6 and a plate-like body 15 that separates the rotating side edge of the opening / closing member 12. Further, as the configuration of the tubular body 10 and the opening / closing member 12, a configuration in which the tubular body 10 and the opening / closing member 12 are housed in the mounting tubular portion 3 can be adopted. By adopting this configuration, there is no structure projecting into the cover portion 6, so that the pressure loss can be reduced.

Then, as shown in FIG. 13, the opening / closing member 12
A normally open type fire damper 17 that closes the air passage in the interior of the mounting cylinder portion 3 on the indoor side by melting the temperature fuse 16
By providing a double fire protection function, it is possible to improve the fire protection function of the ventilation system. In this case, the constituent members including the opening / closing member 12 are made of metal. The other functions are substantially the same as those of the first embodiment.

[0032]

According to the invention of claim 1, an outdoor terminal for a ventilation system is provided which can contribute to the realization of planned ventilation and can avoid the generation of abnormal noise due to the invasion of the outside wind and the obstruction of the air-conditioned atmosphere in the room. To be

According to the second aspect of the invention, a stable outside air intrusion preventing function can be obtained together with the effect of the first aspect.

According to the invention of claim 3, the pressure loss can be reduced together with the effect according to claim 1 or 2.

According to the invention of claim 4, assembling becomes easy together with the effect according to claim 1 or claim 2.

According to the invention of claim 5, the pressure loss can be reduced together with the effect according to claim 2 or 4.

According to the invention of claim 6, the effect according to claim 1 can be obtained with a simple structure.

According to the invention of claim 7, the function of preventing outside wind intrusion is improved together with the effect according to any one of claims 1 to 6.

According to the invention of claim 8, in addition to the effect according to any one of claims 1 to 7, a double fireproof function can be achieved by the opening / closing member and the fireproof damper.

According to the invention of claim 9, the effect according to any one of claims 1 to 8 can be obtained as an outdoor terminal of a ventilation system for exhaust.

According to the invention of claim 10, the effect according to any one of claims 1 to 8 is obtained as an outdoor terminal of a ventilation system for air supply.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an outdoor terminal device of a first embodiment in a mounted state.

FIG. 2 is a front view showing the outdoor terminal according to the first embodiment with a part cut away.

FIG. 3 is a cross-sectional view showing the configuration of the tubular body of the outdoor terminal according to the first embodiment.

FIG. 4 is a cross-sectional view showing another configuration of the tubular body of the outdoor terminal according to the first embodiment.

FIG. 5 is a cross-sectional view showing the configuration of another shielding means of the outdoor terminal according to the first embodiment.

FIG. 6 is a cross-sectional view showing another outdoor terminal device of the first embodiment.

FIG. 7 is a cross-sectional view showing still another outdoor terminal according to the first embodiment in an attached state.

FIG. 8 is a cross-sectional view showing the outdoor terminal according to the second embodiment in an attached state.

FIG. 9 is a front view showing the outdoor terminal of the second embodiment with a part thereof cut away.

FIG. 10 is a cross-sectional view showing the configuration of the tubular body of the outdoor terminal according to the second embodiment.

FIG. 11 is a cross-sectional view showing another configuration of the tubular body of the outdoor terminal according to the second embodiment.

FIG. 12 is a cross-sectional view showing the configuration of another shielding means of the outdoor terminal according to the second embodiment.

FIG. 13 is a cross-sectional view showing another outdoor terminal according to the second embodiment.

[Explanation of symbols]

2 duct pipes, 3 mounting cylinders, 4 outdoor openings, 6 cover parts, 10 cylinders, 12 opening / closing members,
14 shielding means, 15 plate-like body, 16 thermal fuse, 17 fire damper.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hikaru Shimizu             Gifu Prefecture Nakatsugawa City Komabacho No. 1-3 Co., Ltd.             Inside Melco Airtech F-term (reference) 3L080 BA07 BA12 BB02                 3L081 FB01 FC02 FC03 HA02

Claims (10)

[Claims] 1. A mounting cylinder part that is fitted and mounted at an outdoor end of a ventilation system opening to a wall surface of a building, and a cover that covers the outside of the outdoor side opening part of the mounting cylinder part except for the lower side. And an opening / closing member for freely changing the substantial opening area of the outside opening of the same room on the ventilation line of the mounting cylinder, the opening / closing member being provided with An outdoor terminal for a ventilation system, which is provided in a state of being provided with a shielding means for shielding outside air acting on the rotating side of the opening / closing member from below the cover portion. 2. The outdoor terminal for a ventilation system according to claim 1, wherein the shielding means is constituted by a tubular body having open ends that enclose the opening / closing member in a free state. 3. The outdoor terminal for a ventilation system according to claim 1, wherein the opening / closing member and the shielding means are provided in the mounting cylinder. 4. The outdoor terminal for a ventilation system according to claim 1, wherein the opening / closing member and the shielding means are provided in a cover portion. 5. The outdoor terminal for a ventilation system according to claim 2, wherein the open end on the cover portion side of the tubular body has a shorter upper side and a longer lower side. Outdoor terminal. 6. The outdoor terminal for a ventilation system according to claim 1, wherein the shielding means separates a lower edge of the opening / closing member in a free state from an opening portion below the cover portion. The outdoor terminal of the ventilation system composed of. 7. The outdoor terminal for a ventilation system according to claim 1, wherein the shielding means and the lower edge of the opening / closing member in a free state are close to each other. Terminal. 8. The outdoor terminal for a ventilation system according to any one of claims 1 to 7, which is a fire protection damper that closes the air passage of the part by fusing the temperature fuse from the opening / closing member to the inside of the room. Outdoor terminal with ventilation system. 9. The outdoor terminal for a ventilation system according to any one of claims 1 to 8, wherein the opening / closing member is rotated to the opening side by the exhaust flow of the ventilation system. Terminal. 10. The outdoor terminal for a ventilation system according to claim 1, wherein the opening / closing member is rotated to the open side by the air supply of the ventilation system. Terminal.