JPH06341701A - Cool or warm air sending duct made of synthetic resin for vegetation house - Google Patents

Abstract

PURPOSE:To provide a cool and warm air sending duct wherein it is possible to execute an uniform vegetation management of seedlings to be brought up by an uniform spray against crops through an execution of a pipe arrangement in sympathy with a vertical direction change(a difference of elevation) in a house and a horizontal direction change (curvature), and besides, through a formation of a horizontal plane state of a blowoff face. CONSTITUTION:There is provided with a cool or warm air sending duct 1 wherein an air duct 2 having a triangular section and a free length is formed by a synthetic resin sheet and at its bottom face 2a injection holes 3 are arranged, a double structure is given to both slopes 2b at a middle of which a transparent plate 4 with a predetermined length is inserted with a predetermined interval and a heat sealing work 5 is executed to every boundary line.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin cold / warm air blowing type duct for imparting an appropriate temperature to crops such as seedlings in an agricultural and horticultural vinyl house.

[0002]

2. Description of the Related Art Conventional injection ducts for cooling and heating air made of synthetic resin are all wind tunnels having a circular cross section, and are blown out in a radial direction with respect to a crop planted in a plane.
It was impossible to apply a uniform temperature. As a result, the seedlings could not be made uniform, resulting in obstacles in terms of cultivation management and shipping (reduction in commercial value), and there was also a problem of energy loss due to blast scattering. Furthermore, since the wind tunnel has a circular cross section, there was a problem in construction that the piping installed inside the house could not adapt to extreme height differences and bending.

[0003]

DISCLOSURE OF THE INVENTION The present invention has been made in order to solve the drawbacks of conventional ducts, and changes in the vertical direction (height drop) and horizontal changes (bend) in the house.
It aims to provide a cool and warm air duct made of synthetic resin, which can be easily installed in accordance with the above conditions and can be sprayed evenly on crops to improve seedling cultivation management and commercial value.

[0004]

In order to achieve the above object, the present invention forms a wind tunnel 2 having a triangular cross section having a free length with a synthetic resin sheet. An injection hole 3 is provided on the bottom surface 2a, and both slopes 2b have a double structure, and a transparent plate 4 having a predetermined length is enclosed in the middle S thereof at a predetermined interval to heat-seal each boundary 5. , A synthetic resin cold / warm air duct 1 for a cultivation house is configured (FIGS. 1 and 2). Further, in the wind tunnel 2 having the above-mentioned structure, the injection hole 3 is provided on the bottom surface 2a thereof, and the pockets 6 having a predetermined width and length are formed inside or outside the both slope surfaces 2b. 5 is enclosed to form the synthetic resin cold / warm air blowing duct 1 for the cultivation house (FIG. 3). Furthermore, in the wind tunnel 2 of each of the above-mentioned configurations, it is the synthetic resin cold / warm air blowing duct 1 for cultivation greenhouses in which suspension rings 7 are provided at predetermined intervals on the top end thereof (FIGS. 1, 2, and 3).

[0005]

The manner in which the duct 1 of the present invention is erected and installed in the house H is shown in FIGS. From FIG. 4, it can be seen that the wind tunnel 2 is hung by the beam L near the ceiling of the house and is piped above the crop F, and the pipe is adapted to the head with the blower B. Further, according to FIG. 5, the wind tunnel 2 in the constricted state of FIG. 5 is pushed open in a triangular shape by the air blowing action, and the warm air or the cold air is uniformly distributed from the injection holes 3 of the planar bottom surface 2a to the crop F at the same distance. You can see the state of jetting. Transparent plate 5
The wind tunnel 2 forms a triangular shape due to the blowing action (bottom surface 2
It plays an important role in a) and is transparent to ensure the transmission of light to the crop. Further, the transparent plates 5 are arranged at intervals as a predetermined length unit in consideration of bending pipes in both vertical and horizontal directions.

[0006]

As described above, the present invention has been described above. In contrast to a conventional wind tunnel having a circular cross section, a wind tunnel having a triangular cross section is used and its horizontal bottom surface 2a is used as a blowing surface. Can be uniformly sprayed, which enables uniform cultivation management of seedlings, resulting in improvement of commercial value. It goes without saying that there is an energy saving effect. Moreover, since the transparent plates 5 are arranged at intervals as a predetermined length unit, the intermediate portion thereof functions as a node, and is installed so as to adapt to vertical changes (elevation head) and horizontal changes (bend) in the house. This brings the advantage that piping can be done. When not in use, it can be squeezed and folded as shown in FIG. 6, and can be folded and stacked by turning the knots in the longitudinal direction, so that it is excellent in storability. Since it is set to a free length, the required length can be obtained by cutting the knot.

[0007]

EXAMPLE As shown in FIG. 2, a wind tunnel 2 having a free section and a triangular cross section is formed by a vinyl sheet. A large number of injection holes 3 are provided on the bottom surface 2a, and both slopes 2b
On the outside, pockets 6 having a predetermined width and length are formed at intervals, and an acrylic transparent plate 5 is enclosed in each pocket 6. Further, the suspension rings 7 are provided at intervals at the tops of the wind tunnels 2 to complete the synthetic resin cold / warm air blowing duct 1 for the cultivation house of the present invention.

[Brief description of drawings]

FIG. 1 is a perspective view.

[Fig. 2] Front view in vertical section

FIG. 3 is a partially cutaway perspective view of another embodiment.

FIG. 4 is a side view showing the installation state in the house.

[Fig. 5] Same as above

FIG. 6 is a front view showing a folding operation.

[Description of reference signs] 1 cooling / heating air duct 2 wind tunnel with triangular cross section 2a its bottom surface 2b its both slopes 3 injection holes 4 transparent plate 5 heat seal 6 pockets 7 suspension ring

Claims (3)

[Claims] 1. A wind tunnel (2) having a triangular cross section having a free length is formed from a synthetic resin sheet, and an injection hole (3) is disposed on a bottom surface (2a) of the wind tunnel (2b). ) Is a double structure, in which a transparent plate (4) of a predetermined length is enclosed in the middle S thereof at predetermined intervals, and each boundary is heat-sealed (5). 1). 2. A synthetic resin sheet is used to form a wind tunnel (2) having a triangular cross section with a free length, and an injection hole (3) is provided on the bottom surface (2a) of the wind tunnel (1b). ) Is formed with a pocket (6) of a predetermined width and length inside or outside thereof, and a transparent plate (5) is enclosed in the pocket (6). ). 3. The synthetic resin cold / warm air blowing duct (1) for a cultivation house according to claim 1 or 2, wherein a suspension ring (7) is provided at a predetermined interval on the top of the wind tunnel (2).