JP6505478B2 - Air supply structure - Google Patents

Description

The present invention relates to an air supply structure .

  Inside the house, the air in the house will be made uniform by uniformly and smoothly blowing air in a predetermined direction from the air outlet (air supply port) of the duct, and the growth, results, quality, etc. will be made uniform. Can be In order to achieve this purpose, a stable flow of air (charged into the house) blown out from the outlet of the duct is required. For this purpose, for example, it is necessary to maintain the strength and shape (annular shape) of the outlet of the duct, to eliminate the blurring of the duct (prevention of blurring) and / or to secure the shape of the duct. The applicant has used a resistant ring to prevent blurring and / or secure the shape, but further, to secure market needs and convenience, or flexibility of the inner cover I thought about the improvement of practical aspects, such as utilizing.

  The ducts described in Patent Literature 1 and Patent Literature 2 supply air received from a blower from a blower outlet formed at an end of the duct. However, since the patent documents 1 and 2 do not adopt the structure which hangs (hangs down) a duct as illustration, it can not be called the air circulation system of the up-and-down direction in a house. The meaning as an air circulation system is different from the vertical air circulation system aimed at by the present invention, if at all. Moreover, the anti-blurring removal of the duct intended by the present invention and the unstability removing of the flow of air supplied from the air outlet of the duct are completely different.

Unexamined-Japanese-Patent No. 5-284860 Registered Utility Model No. 3179938

The present invention has been made to solve the above-mentioned problems, and provides an air supply structure for preventing the movement of a duct. Further, the air supply structure is provided which is capable of reducing the circumferential stress applied to the duct and / or reducing the influence of the air resistance by the inner cover. Also, the air supply structure is provided in which the inner cover is supported in the inner circumferential surface of the duct.

To achieve the above object, an air supply structure according to the present onset Ming,
With a blower that blows down the air in the ceiling of the house,
A duct for conveying the air fed by the blower downward or to a suitable place;
An inner cover provided on the inner circumferential surface of the duct;
Equipped with
It said cover is lower over the air in the house, or provided on the inner peripheral surface of the house duct sent in place, and thereby enabling moving the inner peripheral surface is formed into a cylindrical shape, and the length Are in the range of about 80 mm to about 600 mm , and the stress in the circumferential direction applied to the duct is reduced and / or the influence of the air resistance by the inner cover can be reduced. And
Movable range of said cover from the air outlet of the duct, with the inlet of the duct, the peripheral surface of the inner cover, or the end, as slip means, the ring ring, sandpaper, or with the adhesive portion,
It said cover is a structure supported by the inner circumferential plane of the duct,
The duct has a through hole on the inner circumferential surface,
The inner cover is characterized in that the through hole is closed by being attached at a predetermined position within a movable range of the inner cover .

The inner cover is characterized in that it is formed of a duct and a homogeneous or hard material.

On the inner circumferential surface of the air supply duct, printing is printed at equal intervals along the length of the duct,
The inner cover is characterized in that it is attached at any position corresponding to the printing.

In the present invention , by providing the inner cover on the inner circumferential surface of the duct, there is a feature that the blurring of the duct can be prevented and the durability of the duct can be improved, and the flexibility of the duct can be maintained. . At the same time, the present invention is characterized in that the circumferential stress applied to the duct is reduced and / or the influence of the air resistance by the inner cover can be reduced. Further, the inner cover is characterized in that it is supported in the inner circumferential surface of the duct.

It is a perspective view of the partial defect of the air supply structure which concerns on Embodiment 1 of this invention. (A) is a front view which shows a mode that an inner cover is attached to a duct. (B) is a front view which shows a mode that the inner cover was attached to the duct. (C) is a front view which shows a mode that the inner cover moved the duct. It is a perspective view of the partial defect of the air supply structure which concerns on Embodiment 2 of this invention. (A) is a front view which shows a mode that an inner cover is attached to a duct. (B) is a front view which shows a mode that the inner cover was attached to the duct. (C) is a front view which shows a mode that the inner cover moved the duct. It is a perspective view of the partial defect of the air supply structure which concerns on Embodiment 3 of this invention. (A) is a front view which shows a mode that an inner cover is attached to a duct. (B) is a front view which shows a mode that the inner cover was attached to the duct. (C) is a front view which shows a mode that the inner cover moved the duct. It is a perspective view of the partial defect of the air supply structure which concerns on the modification of this invention. (A) is a front view which shows a mode that an inner cover is attached to the duct which concerns on Embodiment 4 of this invention. (B) is a front view which shows a mode that the inner cover was attached to the duct. (C) is a front view which shows a mode that the inner cover moved the duct. (A) is a basic structure of the present invention, and is an exploded perspective view showing a part of an inner cover and a duct provided with an annular separation ring. (B) is a front view which shows a mode that the inner cover of said (a) was attached in the duct. (A) is the other structure of the inner cover of this invention, and is the perspective view which showed an example which attached the sandpaper (slip resistance means) for anti-slip to the outer peripheral surface of the inner cover. (B) is the perspective view which showed an example which attached the adhesion part (anti-slip means) to the outer peripheral surface of the inner cover. (C) is the perspective view which showed an example which attached the anti-slip means of the rubber ring to the outer peripheral surface of the inner cover. It is a schematic diagram which showed an example of the handling tool of this invention, and (a) is a figure of the state which operates an inner cover. (B) is a figure showing a state after the end of the operation.

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

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

  The crop 3 is a tomato grown by an example of a shelf cultivation system. For example, the crop 3 is grown on a shelf 2a having legs. Moreover, although not shown in the drawings, there may be a cultivation method such as shelf cultivation by a hanging gutter method, soil cultivation and the like.

  In the air supply structure 1, for example, against the air temperature (referred to as a temperature) of the ceiling 2b or in the vicinity thereof under a situation where air in the house 2 is stagnant or under a situation where a heater is operating, etc. When the temperature of the culture medium or its vicinity is low, it is used to eliminate the stagnation and blow the air near the ceiling 2b downward to increase the temperature near the culture medium. Then, fresh warm air is supplied to the growing point of the crop 3 and the flow of air around the crop 3 is secured. The air supply structure 1 includes, for example, a casing 40, a duct 10 suspended from the casing 40, a blower 20 provided in the casing 40, and / or an inner cover inserted in the duct 10 (cover in duct) It consists of 30 and. The casing 40 is attached to the wire 2d and / or the support member 2e located in the lower part of any of the ceiling 2b, the frame 2c, or the roof (the upper part of the house 2 where the air stagnates) . The inner cover is inserted into the duct 10, but is supported by the inner circumferential surface 11 so as not to drop. The configuration proposes in FIGS. 9 and 10 a preferred and implementable structure.

  The duct 10 has a cylindrical shape formed of plastic such as soft. The inner diameter di of the duct 10 is about 242 mm, and the thickness t1 is about 0.05 mm. The length is approximately 2950 mm. The weight of the duct 10 is approximately 198 g. The suction port 12 (upper side) of the duct 10 is attached to the lower side of the casing 40, for example. The outlet 13 of the duct 10 is located at a distance of, for example, 150 mm from the ground surface GL. The duct 10 is a region where air (mainly stagnant air) or air (warming air) such as warm air stagnates in the house 2, for example, warm air of the ceiling 2b, or a suitable place below (or through) Send to hole 14).

  The inner cover 30 is formed of a plastic such as soft. The inner cover 30 has a cylindrical shape, and the length of the inner cover 30 is, for example, approximately 100 mm, and the thickness t2 is approximately 0.05 mm. The inner cover 30 is slidably fitted in the duct 10. When the inner cover 30 is inserted, the outer wall surface 31 of the inner cover 30 and the inner circumferential surface 11 of the duct 10 are supported by anti-slip means 50 (slip-off preventing means) described later. That is, the inner cover 30 does not fall from the duct 10.

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

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

In addition, the unit of each symbol in Formula (1), (2) is as follows.
σt1, σt2: stress in circumferential direction (N / mm ² )
di: Inner diameter of duct (mm)
P: Internal pressure acting on duct (MPa)
t1: Thickness of duct (mm)
t2: Thickness of inner cover (mm)

  Comparing the equation (1) with the equation (2), the stress? T2 is smaller than the stress? T1 due to the addition of the thickness t2 of the inner cover 30. As described above, by attaching the inner cover 30 to the duct 10, the circumferential stress applied to the duct 10 is reduced, so that blurring of the duct 10 can be prevented. In the embodiment of the present invention, there is also an influence of the air resistance of the inner cover 30. However, the effects can be neglected in the formula in view of the slightness.

  The anti-slip means 50 is an example of a method for supporting the inner cover 30 on the inner circumferential surface 11 of the duct 10, as shown in FIGS. 9 (a), (b) and 10 (a), 10 (b), (c). It is shown. As a tool for attaching the inner cover 30 to the inner circumferential surface 11 of the duct 10, for example, a handling tool 52 shown in FIG. 11 is used. The handling tool 52 has a holding portion 52a for holding the inner cover 30 at its front end, and a handle 52b for operating the opening and closing of the holding portion 52a at its rear end.

  For example, the non-slip means 50 shown in FIGS. 9 (a) and 9 (b) is a split-type ring provided above the inner cover 30a (this is an example, and there are a plurality of places other than the top. It is a structure of the body 51 and the split-type inner cover 30 a supported by the ring body 51. For example, using the handling tool 52, the ring body 51 and / or the inner cover 30a is contracted and inserted (inserted) into the inner circumferential surface 11 of the duct 10. Thereafter, when the handling tool 52 is operated to release the restriction on the ring body 51, the ring body 51 and / or the inner cover 30a recovers, for example, naturally, and a static friction force is generated at a desired portion of the duct 10. Supported by

  The embodiment shown in FIG. 10A is the anti-slip means 50 of the sandpaper 53 provided above the inner cover 30b. For example, the inner cover 30 b is supported and contracted using the handling tool 52 and inserted into the inner circumferential surface 11 of the duct 10. Thereafter, when the handling tool 52 is operated to release the restriction on the inner cover 30b, the inner cover 30b is restored, and the static friction force between the sand paper 53 and the inner circumferential surface 11 is used to make the duct 10 desired. It is a structure supported at a place.

  The embodiment shown in FIG. 10 (b) is a non-slip means 50 of an adhesive portion 54 (adhesive sheet or the like) provided above the inner cover 30c. For example, using the handling tool 52, the inner cover 30 c is supported and contracted and inserted into the inner circumferential surface 11 of the duct 10. After that, when the handling tool 52 is operated to release the restriction on the inner cover 30c, the inner cover 30c is restored in the same manner as described above, and the adhesion between the bonding portion 54 and the inner circumferential surface 11 is used to It is a structure supported at a desired place.

  Further, the embodiment of FIG. 10 (c) is the anti-slip means 50 of the flexible rubber ring 55 provided above the inner cover 30d. For example, using the handling tool 52, the inner cover 30 d is supported and contracted and inserted into the inner circumferential surface 11 of the duct 10. Thereafter, when the handling tool 52 is operated to release the restriction on the inner cover 30d, the inner cover 30d is restored in the same manner as described above, and the adhesion between the rubber ring 55 and the inner circumferential surface 11 is used to It is a structure supported at a desired place. Although not shown, the inner cover 30b to the inner cover 30d may have a split structure.

  Each embodiment will be described below.

  In Embodiment 1 shown in FIG. 1 and FIGS. 2 (a) to 2 (c), it is attached to the duct 10 by anti-slip means 50 provided on the inner cover 30. A static friction force or the like is generated between the anti-slip means 50 provided on the outer wall surface 31 and the inner peripheral surface 11, and the inner cover 30 is supported by the duct 10. Although the example which attaches the inner cover 30 to the internal peripheral surface 11 of the duct 10 was demonstrated and illustrated in each figure, it is not limited to this example. In this example, as shown in FIG. 2C, it is possible to move the inner cover 30 upward by a predetermined distance D from the air outlet 13. For example, the strength of the duct 10 at the moving position can be secured. . Furthermore, by rolling up the duct 10, a work space can be secured below. Further, for example, when the inner cover 30 receives the stress applied to the duct 10 at the movement position or the like, blurring can be prevented. In addition, it is preferable that the length of the inner cover 30 exists in the range of about 80 mm or more and about 600 mm or less, for example. More preferably, it is preferably in the range of about 100 mm or more and about 400 mm or less. As described above, the length of the inner cover 30 is determined within the range of about 80 mm to about 600 mm, so that the movement of the duct 10 can be prevented and the strength of the duct 10 is improved. Moreover, since the attachment to the duct 10 becomes simple, the practicability of the inner cover 30 is enhanced. Although not shown, by optimizing the material of the duct 10 and the inner cover 30, it is possible to surely achieve the shake prevention of the duct 10 and to secure the effectiveness. Thus, the inner cover 30 is attached to the duct 10, and the shape of the duct 10 is stabilized. Accordingly, the air above the inner cover 30 reaches the outlet 13 (since the flow of air is secured), and the crop 3 can be efficiently supplied with air.

  In Embodiment 2 shown in FIG. 3 and FIGS. 4A to 4C, the air supply structure 1A (the state of the ground surface GL near the outlet 13 or the change of the position of the field space etc.) 3 and 4 (a), (b), and (c). The same reference numerals will be used for configurations that are the same as or equivalent to the first embodiment, and the description will be omitted (the same applies hereinafter). The duct 10A according to the second embodiment is different from the duct 10 according to the first embodiment in that the through hole 14 is formed in the inner circumferential surface 11. Ducts 10 </ b> A to 10 </ b> C described later are alternatives to the duct 10. A plurality of through holes 14 are formed on the inner peripheral surface 11 of the duct 10A at a position (a predetermined distance D1 away) above the blowout port 13 and / or in the periphery thereof as shown in FIG. Supply of air is also performed from 14. Thereby, the growth of the crop 3 grown on the shelf 2a can be promoted. Then, as shown in FIGS. 4A, 4B, and 4C, the inner cover 30 can be moved upward from the blowout port 13 to a position separated by a predetermined distance D1. In addition, when the inner cover 30 is moved to the through hole 14, the through hole 14 can be closed to stop the supply of air. Thus, the movement of the inner cover 30 can be utilized as a means for adjusting the charge air.

  In the third embodiment shown in FIG. 5 and FIGS. 6A to 6C, the air supply structure 1B will be described. In addition, about the structure the same as that of Embodiment 1, or equivalent, the same code | symbol is used and description is abbreviate | omitted. The duct 10B according to the third embodiment is different from the duct 10 according to the first embodiment in that the print 15 is printed on the inner circumferential surface 11. On the inner circumferential surface 11 of the duct 10B, as shown in FIG. 5, a plurality of prints 15 are printed in the vertical direction, for example, every 3 cm. The print 15 is a product on which the product name or the trade name (logo etc.) of the duct 10B is written. The print 15 can be used to appeal the product name or brand name of the duct 10B. Points, lines, symbols, characters or the like can be used instead of the print 15. The inner cover 30 can also be moved upward from the outlet 13 as shown in FIGS. 6 (a), (b) and (c). For this reason, when moving the inner cover 30 upward from the blower outlet 13, the position of the printing | printed_character 15 can be moved to a standard. The print 15 and the like make it possible to visually recognize the distance the inner cover 30 has moved from the blowout port 13.

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

  The crop 3 is not limited to shelf cultivation etc. shown in FIGS. 1, 3 and 5, and as the others, soil cultivation may be possible as shown in FIG. 7, for example.

  In the duct 10B according to the third embodiment, a print 15 such as a product name of the duct 10B is printed. However, in the fourth embodiment, as shown in FIGS. 8A, 8B, and 8C, the ducts 10C may be provided with the scale 16 at equal intervals or at appropriate intervals.

  Although not described in detail (not shown), the inner cover 30 is considered to be useful at the time of fire by being formed of a flame-retardant soft plastic. The same applies to the duct 10. Also, the inner cover 30 may be made of a hard plastic or the like, for example, a hard material with respect to the hard plastic of the duct 10. It is effective in preventing blurring of the duct 10.

  Although the above-mentioned embodiment showed the example in which the single inner cover 30 was attached to duct 10A, a plurality of inner covers 30 may be attached. It is considered to be useful for preventing blurring of the duct 10A and closing the through hole 14.

  Peeling prevention may be achieved from the duct 10 of the inner cover 30 by attaching the inner cover 30 and the duct 10 with an adhesive tape or attaching with an adhesive.

  The present invention is capable of various embodiments and modifications without departing from the broad spirit and scope of the present invention. The embodiments described above are for explaining the present invention, and do not limit the scope of the present invention.

DESCRIPTION OF SYMBOLS 1, 1A, 1B Air supply structure 2 House 2a Shelf 2b Ceiling 2c Housing 2d Wire 2e Support member 3 Crop 10, 10A, 10B, 10C Duct 11 Inner peripheral surface 12 Suction port 13 Blowout port 14 Through hole 15 Printing 16 Scale 20 Blower 30, 30a-30g Inner cover (cover in duct)
31 Outer wall surface 40 Casing 50 Anti-slip means 51 Ring body 52 Handling tool 52a Holding part 52b Handle 53 Sand paper 54 Bonding part 55 Rubber ring D, D1 Distance GL Ground surface σt1, σt2 Stress di inside diameter t1, thickness thickness P Internal pressure

Claims (3)

With a blower that blows down the air in the ceiling of the house,
A duct for conveying the air fed by the blower downward or to a suitable place;
An inner cover provided on the inner circumferential surface of the duct;
Equipped with
It said cover is lower over the air in the house, or provided on the inner peripheral surface of the house duct sent in place, and thereby enabling moving the inner peripheral surface is formed into a cylindrical shape, and the length Are in the range of about 80 mm to about 600 mm, and the stress in the circumferential direction applied to the duct is reduced and / or the influence of the air resistance by the inner cover can be reduced. And
The movable range of the inner cover is from the outlet of the duct to the suction port of the duct, and the outer cover or the end of the inner cover is a ring ring, sand paper, or a non-slip means. Equipped with adhesive
The inner cover is supported within the inner circumferential surface of the duct ,
The duct has a through hole on the inner circumferential surface,
The air supply structure characterized in that the inner cover closes the through hole by being attached to a predetermined position within a movable range of the inner cover . The air supply structure according to claim 1, wherein the inner cover is formed of the same material as the duct and a hard material or a hard material. At the inner circumferential surface of the duct, printing is printed at equal intervals along the length direction of the duct,
The air supply structure according to claim 1 or 2 , wherein the inner cover is attached at an arbitrary position corresponding to the print.