JP2016063800A - Cover and ventilation structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cover and ventilation structure capable of preventing vibration of duct.SOLUTION: A cover 30 is arranged on an outer peripheral surface 11 of a duct 10 transferring upper side air in a greenhouse 2 to downward or a suitable region, and may be moved on the outer peripheral surface 11. The cover 30 has a cylindrical shape and a length within a range from about 80 mm or more to about 600 mm or less. The cover 30 may move from a blowout port 13 of the duct 10 to an inlet port 12 of the duct 10. Thereby, the cover 30 may prevent vibration of the duct 10.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cover and an air supply structure.

  In the house, the air in the house is uniformly and smoothly blown in a predetermined direction from the duct outlet (air supply inlet), so that the air in the house is made uniform and the growth, results, quality, etc. are made uniform. Can be planned. To achieve this object, a stable flow of air blown from the duct outlet (charged into the house) is required. For this purpose, for example, it is necessary to maintain the strength of the air outlet of the duct and ensure the shape (annular), eliminate the blur of the duct (anti-blur) and / or ensure the shape of the duct. The present applicant has used a resistant ring to prevent blurring and / or to secure the shape, but also to ensure market demand and convenience, or to make the cover flexible. We considered improvement of practical use such as utilization.

  The ducts described in Patent Document 1 and Patent Document 2 supply air received from a blower from an air outlet formed at an end of the duct. However, since Patent Documents 1 and 2 do not employ a structure in which a duct is suspended (hanging down) as shown in the drawing, it is considered that the air circulation system cannot be said to be a vertical air circulation system in a house. Although the meaning as an air circulation system is the same, it differs from the vertical air circulation system which this invention aims at. Moreover, the prevention of the blurring of the duct intended by the present invention and the elimination of the instability of the air flow supplied from the air outlet of the duct are completely different.

Japanese Patent Laid-Open No. 5-284860 Registered Utility Model No. 3179938

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a cover and an air supply structure for preventing duct blurring.

In order to achieve the above object, the cover according to the first aspect of the present invention comprises:
A cover that is provided on the inner and outer peripheral surfaces of the house duct that sends the upper air in the house downward or in place, and is movable on the inner and outer peripheral surfaces.
It is formed in a cylindrical shape and has a length in the range of about 80 mm to about 600 mm,
The movable range is from the outlet of the house duct to the inlet of the house duct.

The cover has a wall surface on which an uneven surface is formed,
The wall surface may be attached to the house duct by contacting the inner and outer peripheral surfaces of the house duct.

  The cover may be cylindrical and may have a length in a range from about 100 mm to about 400 mm.

  The cover may be formed in a bellows shape.

  The cover may be made of the same material as the house duct or a hard material.

The air supply structure according to the second aspect of the present invention is:
A blower that blows down the ceiling air in the house,
A house duct for sending air sent by the blower downward or in place;
And a cover according to a first aspect provided on the inner and outer peripheral surfaces of the house duct.

The house duct has a through hole in the inner and outer peripheral surfaces,
The cover may close the through hole by being attached to a predetermined position within a movable range of the cover.

On the inner and outer peripheral surfaces of the house duct, prints are printed at equal intervals along the length direction of the house duct,
The cover may be attached at an arbitrary position corresponding to the printing.

  The cover of the cover and the air supply structure of the present invention can prevent the duct from blurring by being provided on the inner and outer peripheral surfaces of the duct.

It is a perspective view of the air supply structure which concerns on Embodiment 1 of this invention. (A) is a front view which shows a mode that a cover is attached to a duct. (B) is a front view which shows a mode that the cover was attached to the duct. (C) is a front view which shows a mode that the cover moved the duct. It is a perspective view of the air supply structure which concerns on Embodiment 2 of this invention. (A) is a front view which shows a mode that a cover is attached to a duct. (B) is a front view which shows a mode that the cover was attached to the duct. (C) is a front view which shows a mode that the cover moved the duct. It is a perspective view of the air supply structure which concerns on Embodiment 3 of this invention. (A) is a front view which shows a mode that a cover is attached to a duct. (B) is a front view which shows a mode that the cover was attached to the duct. (C) is a front view which shows a mode that the cover moved the duct. It is a perspective view of the air supply structure which concerns on the modification 1 of this invention. (A) is a front view which shows a mode that a cover is attached to the duct which concerns on the modification 2 of this invention. (B) is a front view which shows a mode that the cover was attached to the duct. (C) is a front view which shows a mode that the cover moved the duct. (A) is a front view which shows a mode that a cover is attached to the duct which concerns on the modification 3 of this invention. (B) is a front view which shows a mode that the cover was attached to the duct. (C) is a front view which shows a mode that the cover moved the duct. (A) is a front view which shows a mode that a cover is attached to the duct which concerns on the modification 4 of this invention. (B) is a front view which shows a mode that the cover was attached to the duct. (C) is a front view which shows a mode that the cover moved the duct. It is a front view which shows the cover which concerns on the modification 5 of this invention. (A) is an enlarged front view showing a state where a sheet-like thermometer is attached to the cover. (B) is an enlarged front view showing a state in which the sheet-like thermometer attached to the cover displays temperature and humidity.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Embodiment 1 FIG.
As shown in FIG. 1, the house 2 has a housing 2c and a beam (not shown), a protective material such as vinyl film and glass, a reinforcing material (not shown), a wire, and other materials as in the conventional case. It consists of A casing 40 and a duct 10 of an air supply structure 1 (to be described later) are suspended by a wire 2d and / or a support member 2e on a housing 2c or a ceiling 2b constituting the house 2 (the duct 10 is a ceiling). 1b extends downward from 2b and is suspended from the house 2 by one or more).

  The crop 3 is, for example, a tomato that is cultivated by a shelf cultivation method. For example, the crop 3 is cultivated on a shelf 2a having legs. Although not shown, shelf cultivation by the hanging gutter method is also possible.

  The air supply structure 1 is used to blow down the air in the house 2, in principle, air such as warm air on the ceiling 2 b (with some exceptions). Air is supplied to the growth point of the crop 3 and air flow is secured around the crop 3. The air supply structure 1 includes a casing 40, a duct 10 suspended from the casing 40, a blower 20 provided in the casing 40, and / or a cover (duct cover) 30 fitted on the outer peripheral surface 11 of the duct 10. And consist of: The casing 40 is attached to the wire 2d and / or the support member 2e located at any lower part of the ceiling 2b, the casing 2c, or the roof part (an area where air stays in the upper part of the house 2). .

  The duct 10 has a cylindrical shape made of soft plastic or the like. The inner diameter di of the duct 10 is approximately 242 mm, and the thickness t1 is approximately 0.05 mm. The length is approximately 2950 mm. The weight of the duct 10 is approximately 198 g. The inlet 12 (upper) of the duct 10 is attached to the lower side of the casing 40, for example. The air outlet 13 of the duct 10 is located, for example, at a location 150 mm away from the ground surface GL. In the house 2, the duct 10 sends warm air in a region where air stays, for example, the ceiling 2 b, to an appropriate position (a through hole 14 described later) below or in the middle.

  The cover 30 is made of soft plastic or the like. The cover 30 has a cylindrical shape, and the length of the cover 30 is, for example, approximately 100 mm, and the thickness t2 is approximately 0.05 mm. The cover 30 is slidably fitted into the duct 10. For example, the cover 30 is preferably supported by a static frictional force between the inner wall surface 31 of the cover 30 and the outer peripheral surface 11 of the duct 10. For example, the cover 30 does not fall from the duct 10 when being fitted.

  When the cover 30 is not attached to the duct 10, a circumferential stress σt1 is generated with respect to the duct 10, as shown in the thin cylinder equation (1). The stress σt1 increases in proportion to the inner diameter di of the duct and the size of the internal pressure P acting on the duct. The stress σt1 decreases in inverse proportion to the size of the duct thickness t1.

  When the cover 30 is attached to the duct 10, a circumferential stress σt2 is generated with respect to the duct 10, as shown in the thin cylinder equation (2).

In addition, the unit of each symbol in Formula (1), (2) is as follows.
σt1, σt2: circumferential stress (N / mm ² )
di: Inner diameter of the duck bowl (mm)
P: Internal pressure (MPa) acting on duck
t1: Duct thickness (mm)
t2: Cover thickness (mm)

  Comparing Expression (1) and Expression (2), the stress σt2 is smaller than the stress σt1 due to the addition of the thickness t2 of the cover 30. Thus, since the circumferential stress applied to the duct 10 is reduced by attaching the cover 30 to the duct 10, the duct 10 can be prevented from being shaken.

  The cover 30 is attached to the duct 10 as shown in FIGS. Between the inner wall surface 31 and the outer peripheral surface 11, there is slip resistance with respect to the outer peripheral surface 11 by adopting a configuration that ensures a static frictional force. In each figure, the example attached to the outer peripheral surface 11 of the duct 10 was demonstrated and illustrated. Although not limited to this, although not shown, it is also possible to attach to a part of the outer peripheral surface 11 or the inner peripheral surface.

  Moreover, as shown in FIG.1 and FIG.2 (c), it is also possible to move the cover 30 to the predetermined distance D upward from the blower outlet 13, and can ensure the intensity | strength of the duct 10 in a movement position etc., for example. . Furthermore, a working space can be secured below by rolling up the duct 10. Further, for example, when the cover 30 receives a stress applied to the duct 10 at the moving position or the like, blurring can be prevented.

  Moreover, it is preferable that the length of the cover 30 exists in the range of about 80 mm or more and about 600 mm or less, for example. More preferably, it is in the range of about 100 mm to about 400 mm.

  Since the length of the cover 30 is in the range of approximately 80 mm to approximately 600 mm, the blur of the duct 10 can be prevented, the strength of the duct 10 is improved, and the attachment to the duct 10 is simplified. The practicality of is improved. In addition, by optimizing the material of the duct 10 and the cover 30, it is possible to further prevent the duct 10 from blurring. Furthermore, when the cover 30 is attached to the duct 10, the shape of the duct 10 is stabilized. For this reason, for example, since the air flow above the cover 30 reaches the air outlet 13 (since the air flow is ensured), the crop 3 can be efficiently supplied with air.

Embodiment 2. FIG.
Next, regarding the air supply structure 1A (the state of the ground surface GL near the air outlet 13 or the change of the position of the field space, etc.), FIG. 3 and FIGS. 4A, 4B, and 4C are used. I will explain. In addition, about the structure same or equivalent to Embodiment 1, the same code | symbol is used and description is abbreviate | omitted. The duct 10A according to the present embodiment is different from the duct 10 according to the first embodiment in that a through hole 14 is formed in the outer peripheral surface 11. Ducts 10 </ b> A to 10 </ b> C described later are substitutes for the duct 10.

  As shown in FIG. 3, a plurality of through holes 14 are formed on the outer peripheral surface 11 of the duct 10 </ b> A above and / or around the outlet 13 (a predetermined distance D <b> 1). The air is also supplied from. Thereby, the growth of the crop 3 cultivated on the shelf 2a can be promoted.

  As shown in FIGS. 4A, 4 </ b> B, and 4 </ b> C, the cover 30 can be moved upward from the air outlet 13 to a position separated by a predetermined distance D <b> 1. Moreover, if the cover 30 is moved to the through-hole 14, the through-hole 14 is closed and the air supply can be stopped. Thus, the movement of the cover 30 can be used as a means for adjusting the supply air.

Embodiment 3 FIG.
Next, the air supply structure 1B will be described with reference to FIGS. 5 and 6A, 6B, and 6C. In addition, about the structure same or equivalent to Embodiment 1, the same code | symbol is used and description is abbreviate | omitted. The duct 10 </ b> B according to the present embodiment is different from the duct 10 according to the first embodiment in that the print 15 is printed on the outer peripheral surface 11.

  On the outer peripheral surface 11 of the duct 10B, as shown in FIG. 5, a plurality of prints 15 are printed along the vertical direction, for example, every 3 cm. The print 15 is a product name or a trade name (logo etc.) written on the duct 10B. The print 15 can be used for appealing the product name or brand name of the duct 10B. Instead of the print 15, dots, lines, symbols, characters, and the like can be used.

  As shown in FIGS. 6A, 6 </ b> B, and 6 </ b> C, the cover 30 can be moved upward from the air outlet 13. For this reason, when the cover 30 is moved upward from the air outlet 13, the position of the print 15 can be moved as a guide. The distance that the cover 30 has moved from the air outlet 13 can be visually recognized by the printing 15 or the like.

(Modification)
As mentioned above, although embodiment of this invention was described, this invention is not limited by the said embodiment. For example, the following modifications can be made.

  The crop 3 is not limited to shelf cultivation or the like shown in FIGS. 1, 3, and 5, and other examples include soil cultivation as shown in FIG. 7.

  A print 15 such as a product name of the duct 10B is printed on the duct 10B according to the third embodiment. However, as shown in FIGS. 8A, 8 </ b> B, and 8 </ b> C, the duct 10 </ b> C may be provided with the scales 16 at equal intervals or at appropriate intervals.

  As shown in FIGS. 9A, 9B, and 9C, a bellows-shaped cover 30A may be used. Since the inner wall surface 31 of the cover 30 </ b> A is formed in a concavo-convex shape, the static frictional force against the outer peripheral surface 11 of the duct 10 increases and the cover 30 does not fall from the duct 10.

  As shown in FIGS. 10A, 10 </ b> B, and 10 </ b> C, a cover 30 </ b> B in which the covers 30 are stacked in a double manner may be used. The thickness of the cover 30 </ b> B is twice the thickness of the cover 30. This is effective in improving the strength of the duct 10 and preventing the duct 10 from blurring.

  As illustrated in FIG. 11, a cover 30 </ b> C in which a sheet-like temperature and humidity meter is attached to the cover 30 may be used. The temperature and humidity in the house 2 and / or the duct 10 can be visually confirmed.

  Although not described in detail (not shown), the cover 30 is considered to be beneficial in the event of a fire by being formed of a flame-retardant soft plastic. The same applies to the duct 10. Further, the cover 30 may be formed of a hard plastic or the like, for example, a hard material with respect to the hard plastic of the duct 10. This is effective in preventing the duct 10 from blurring.

  In the above-described embodiment, an example in which the single cover 30 is attached to the duct 10 has been described, but a plurality of covers 30 may be attached. It is considered useful for preventing the blur of the duct 10 </ b> A and blocking the through hole 14.

  The cover 30 and the duct 10 may be attached to each other with an adhesive tape or attached with an adhesive to prevent peeling from the duct 10 of the cover 30.

  Various embodiments and modifications can be made to the present invention without departing from the broad spirit and scope of the present invention. The above-described embodiments are for explaining the present invention and do not limit the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Supply structure 2 House 2a Shelf 2b Ceiling 2c Housing 2d Wire 2e Support member 3 Crop 10, 10A, 10B, 10C Duct 11 Outer peripheral surface 12 Suction port 13 Outlet 14 Through-hole 15 Printing 16 Scale 20 Blower 30, 30A, 30B , 30C Cover (duct cover)
31 inner wall surface 40 casing D, D1 predetermined distance GL ground surface σt1, σt2 stress di inner diameter t1, t2 thickness P internal pressure

In order to achieve the above object, the cover according to the first aspect of the present invention comprises:
A cover that is provided on the outer peripheral surface of the duct for the house that sends the upper air in the house to the lower or appropriate position, and is movable on the outer peripheral surface ,
It is formed in a cylindrical shape and has a length in the range of about 80 mm to about 600 mm,
The movable range is from the outlet of the house duct to the inlet of the house duct.

The cover has a wall surface on which an uneven surface is formed,
The wall surface may be attached to the house duct by contacting the outer peripheral surface of the house duct.

The air supply structure according to the second aspect of the present invention is:
A blower that blows down the ceiling air in the house,
A house duct for sending air sent by the blower downward or in place;
And a cover according to a first aspect provided on an outer peripheral surface of the house duct.

The house duct has a through hole in the outer peripheral surface ,
The cover may close the through hole by being attached to a predetermined position within a movable range of the cover.

On the outer peripheral surface of the house duct, prints are printed at equal intervals along the length direction of the house duct,
The cover may be attached at an arbitrary position corresponding to the printing.

The cover of the cover and the air supply structure of the present invention can prevent the duct from blurring by being provided on the outer peripheral surface of the duct.

Claims (8)

A cover that is provided on the inner and outer peripheral surfaces of the house duct that sends the upper air in the house downward or in place, and is movable on the inner and outer peripheral surfaces.
It is formed in a cylindrical shape and has a length in the range of about 80 mm to about 600 mm,
The movable range is from the outlet of the house duct to the inlet of the house duct. Having a wall surface with an uneven surface,
The cover according to claim 1, wherein the wall surface is attached to the house duct by contacting the inner and outer peripheral surfaces of the house duct.   The cover according to claim 1 or 2, wherein the cover is cylindrical and has a length in a range of approximately 100 mm to approximately 400 mm.   The cover according to any one of claims 1 to 3, wherein the cover is formed in a bellows shape.   The cover according to any one of claims 1 to 4, wherein the cover is made of a material having the same hardness as the house duct or a hard material. A blower that blows down the ceiling air in the house,
A house duct for sending air sent by the blower downward or in place;
An air supply structure comprising: the cover according to claim 1 provided on an inner and outer peripheral surface of the house duct. The house duct has a through hole in the inner and outer peripheral surfaces,
The air supply structure according to claim 6, wherein the cover closes the through hole by being attached to a predetermined position within a movable range of the cover. On the inner and outer peripheral surfaces of the house duct, prints are printed at equal intervals along the length direction of the house duct,
The air supply structure according to claim 6 or 7, wherein the cover is attached at an arbitrary position corresponding to the printing.

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