JP2004350506A - Ventilation structure for plastic greenhouse - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide ventilation structure for a plastic greenhouse obtained at low costs, extremely simple in maintenance, enabling sufficient ventilation in a plastic greenhouse in such a state as to keep a ventilation opening open in rainy weather or the like while preventing rainfall from coming down. <P>SOLUTION: The ventilation structure for plastic greenhouse comprises a ventilation opening part 20 formed at a ceiling wall part 14 of a plastic greenhouse 10. A water receiving ventilation means 26 which can receive rainwater coming down from the opening at least in a vertically downward direction while forming a desired air flow space is provided at a place of the inner and lower part of the plastic greenhouse. The plastic greenhouse enables sufficient ventilation without causing coming down of rainwater in rainy weather or the like while preventing rainfall from coming down in such a state as to keep the ventilation opening 20 open in a humid season such as a rainy one. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vinyl house ventilation structure for ventilating inside and outside a vinyl house installed in an agricultural vinyl house.
[0002]
[Prior art]
Compared to foreign countries, the scale of management is very small, and it is good at uncultivated cultivation, rotation, and multiple cropping systems. Cultivation is managed in a vinyl house for management and protection from feng shui. Generally, a vinyl house is constructed, for example, by erecting pillars on both sides in the width direction at intervals of about 5 m over a length of about 50 m, further erecting a pipe in the middle of the pillars, and stretching vinyl on them. Was. Since vinyl houses cover their indoor fields with transparent resin vinyl, they can protect against feng shui without being affected by the weather conditions, but the room temperature tends to be too high and becomes humid in the rainy season, causing disease, pests and decay. Therefore, ventilation inside and outside the room is indispensable. Conventionally, for ventilation of the vinyl house, as shown in FIG. 10, vinyl is wound around a winding rod 200, and is rewound freely. The winding rod is wound via a wire (not shown) and a winding handle. It is known that an opening having a required width is formed to be freely openable and closable along an arc portion of an arch pipe 202 of a vinyl house by winding and rotating a 200.
[0003]
[Problems to be solved by the invention]
However, in the ventilation method using an opening through the opening / closing mechanism shown in FIG. 10, it is necessary to always wait near the house and close the opening before rain starts when rain is close to the weather, and work away from the house. I couldn't leave the house because of my business. If the rainfall from the opening is left undisturbed, the above-mentioned crop disease, pests, decay, etc. will occur and the product will be anti-age. In addition, when the opening is closed during the rainy season or the like, the opening becomes humid, which similarly causes the occurrence of pests. In addition, when raindrops are collected on the vinyl surface when opening and closing the opening, each time the opening / closing operation is performed, the raindrops directly fall from the opening to the field portion in the house and adversely affect the crop. Furthermore, in the rainy season or the like, the dew point in the air itself is high, so even if there is no rainfall, the dew condensation may fall down on a passage or a field in a house through vinyl to cause a similar problem. On the other hand, in order to prevent the raindrops from falling into the house from the opening due to the opening / closing operation when the raindrops are collected on the vinyl surface, for example, a greenhouse roof sheet opening and closing as shown in Japanese Patent Publication No. 55-45697. Moving gutters for the device have been proposed. However, this moving gutter only prevents the direct flow of raindrops or the like from the vinyl surface into the inside of the house when the opening and closing operation of the opening is performed. However, problems such as the possibility of the occurrence of pests due to high humidity when rainy weather is closed have not been solved at all, and there has been a long-awaited demand for an apparatus capable of effectively solving those problems. An automatic opening / closing device that detects rainfall with a rainfall sensor and automatically opens and closes the coated vinyl has also been proposed. However, it is expensive and less cost-effective for micro farmers, is low-cost, and is cost-effective for maintenance. A device that does not require much time has been desired.
[Patent Document 1] Japanese Patent Publication No. 55-45697 (Claims of the specification, FIG. 1 and FIG. 2)
[0004]
The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to perform work away from the vinyl house, or to work away from the house due to errands, but when the rain falls in the house when it rains, etc. Ventilation of a vinyl house without dropping, while maintaining the ventilation opening in the open (open) state during humid conditions such as rainy seasons while preventing rainfall from falling, and low cost and extremely easy maintenance Is to provide a structure.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention relates to a ventilation opening 20 formed in a top wall portion 14 of a vinyl house 10, which is inside a vinyl house and has a required ventilation below the opening. It is provided with a ventilation structure of a vinyl house, which is provided with a water receiving / ventilating means 26 capable of receiving rainwater falling from the opening at least vertically downward while forming a gap. The ventilation structure of a vinyl house of the present invention is applied to, for example, any of a ventilation opening that is always open, and a ventilation opening that can be freely opened and closed by an arbitrary opening and closing mechanism such as a vinyl winding mechanism. Furthermore, the position where the ventilation opening is formed may be at any position on the top wall, and the shape of the top wall may be arched, triangular, flat, or any other shape. It is preferable to set and provide the water receiving / ventilating means 26 corresponding to the above.
[0006]
The water receiving / ventilating means 26 is a gutter body 30 which can receive rainwater falling from the opening at least vertically downward, and which is suspended at a low position vertically separated from the ventilation opening 20 at a required interval. 30 and a suspension device 32 for supporting the gutter body 30 on the structural member (18) of the vinyl house. Since the gutter body 30 is disposed near the ventilation opening 20 via the suspension support device 32, the gutter body 30 is directly below the gutter body 30 as compared with the case where the gutter body 30 is supported via a pillar erected on the ground. The work space at the position can be maintained, and the work space inside the house can be kept out of the way.
[0007]
Further, the gutter 30 is formed of a rainwater receiving plate having a receiving surface larger than the vertical projection area of the ventilation opening 20, and a plurality of points of the gutter 30 are formed so as to form a sufficiently large bypass flow path R. May be suspended via the linear members 34a and 34b. The material of the gutter body 30 is, for example, a highly corrosion-resistant metal such as aluminum or an aluminum alloy, a thin iron plate such as a tin plate subjected to corrosion-resistant plating, or a water-resistant synthetic resin. Or any other plate. The shape of the gutter body 30 may be any shape as long as it can form a flow path for rainwater, such as a substantially rectangular cross section, an L shape, a U shape, or an arc shape. The wire member may be any material such as a metal wire such as a wire or a wire, or a hard synthetic resin wire. The connection between the linear member and the arch pipe may be directly connected at one end of the linear member, or may be connected via the engaging member 36. The connection between the gutter body and the striated member may be fixed by welding or provided with a hole for striate penetration in a part of the gutter body, or may be connected via a connecting member such as a bolt. Good.
[0008]
In addition, the suspension device 32 includes linear members 34a and 34b connecting the gutter body 30 and the structural material (18) of the vinyl house 10, and pipes of the vinyl house 10 connected to one ends of the linear members 34a and 34b. An engaging member 36 that is engaged at an arbitrary portion of the structural material (18) in the bending direction, and further includes a gutter body 30, the linear members 34a and 34b, and a connecting portion of the engaging member 36 or a portion thereof. It may be characterized in that it itself includes a pivot (44) that rotates in a direction about an axis about a lateral direction. The configuration of the engagement member 36 may be any other configuration, such as an arbitrary clamp mechanism including a tubular or pinched plate that is engaged with the outer periphery of the pipe. Both the connecting portion between the engaging member 36 and the filament member or the connecting portion between the gutter body 30 and the filament member may be provided with a pivot portion. However, in order to make the gutter body less likely to swing due to wind or the like. Any of the connecting portions may be fixedly connected.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIGS. 1 to 6 show an embodiment of the present invention. In this embodiment, for example, a case where the present invention is applied to a single-type vinyl house having a width of 5 m and a length of about 50 m is used. Describes the ventilation structure. As shown in FIG. 1, the vinyl house 10 of the present embodiment includes two side walls 12 erected in a substantially right angle direction from the ground side, and a top wall part 14 laid over the upper ends of the two side walls. And The side wall portion 12 is erected and supported on a base (not shown) provided on the ground side, and extends, for example, over a 50 m length at regular intervals, and a column pipe 16 in which they are arranged in parallel on both sides; The structural material portion is constituted by a middle position of the height of the pillar pipe 16 and a horizontal pipe 17 arranged on the upper side at right angles to the pillar pipe 16 toward the longitudinal direction of the house. On the other hand, the top wall portion 14 has an upwardly projecting arch pipe 18 erected at the upper end side of each of the opposed column pipes 16 on both sides, and a house perpendicular to the arch pipe at an intermediate position in the longitudinal direction of the arch pipe 18. And a girder pipe 19 arranged in the longitudinal direction.
[0010]
The side wall portion 12 and the entire top wall portion 14 of the vinyl house 10 are covered with a transparent vinyl resin (vinyl 21) or the like so that the inside of the vinyl house is formed in a substantially sealed state. Either or both of them is provided with an entrance (not shown). In this embodiment, as shown in FIGS. 2 and 4, the connecting portion between one arch end portion of the top wall portion 14 and the upper end side of the side wall portion 12 has a total length of, for example, several tens cm to 1 m. The ventilation opening 20 is provided over the 50 m direction. The ventilation opening 20 can be freely opened and closed by a winding mechanism 24 including a winding shaft 22 that winds up and rewinds the vinyl 21 so that the vinyl 21 can be wound and unwound. The winding mechanism 24 moves along the curved portion of the arch pipe 18 by winding and rotating the winding shaft 22 via a winding handle and a wire (not shown), and opens and closes the ventilation opening 20 having a required width. Form freely. In the present embodiment, the ventilation structure of the vinyl house has a configuration in which a water receiving / ventilating means 26 is provided near the ventilation opening 20.
[0011]
The water receiving / ventilating means 26 is means for receiving rainwater falling inside the vinyl house 10 and forming a sufficient ventilation gap 28 below the ventilation opening 20, and in particular, falls in the vertical direction. The rainwater is reliably received and collected on the side of the end wall, and a sufficient gap communicating with the inside of the house from the ventilation opening 20 is formed so that the water reception and the ventilation are simultaneously performed. 2 and 3, a water receiving / ventilating means 26 has a gutter body 30 having a receiving surface portion which can receive rainwater falling from the ventilation opening 20 at least vertically downward, and the gutter body 30 is moved from the ventilation opening 20 to And a suspending device 32 for suspending at a required interval in the vertical direction at a low position.
[0012]
As shown in FIG. 4, the gutter body 30 is formed of a corrosion-resistant metal receiving plate having a substantially U-shaped cross section and formed long in the longitudinal direction of the house. The main flow path of rainwater or the like that has fallen and falls and is received. The gutter body 30 has a receiving surface that is larger than the vertical projection area of the ventilation opening 20 and receives at least rainwater that falls from the ventilation opening 20 in the vertical direction before falling into the field of the house. That is, in the present embodiment, the width L of the receiving surface of the gutter 30 is set to be larger than the maximum opening width M of the ventilation opening 20 and the opening width M falls within the vertical range of the width L of the gutter. Is set. For the gutter body 30, for example, a plurality of gutter bodies having a length of about 2 m in the longitudinal direction are prepared, and, for example, the length of the vinyl house is increased while maintaining watertightness by caulking or the like via the joint member 31 or the like (see FIG. 3). They are connected along the direction and are continuously formed integrally from one end to the other end of the vinyl house. The gutter body 30 is inclined so that one end in the longitudinal direction is raised and the other end is lowered, or the gutter body 30 is inclined such that the middle position in the longitudinal direction of the gutter body 30 is raised and both ends are lowered. With this arrangement, the received rainwater can be drained well by flowing toward the house end wall.
[0013]
The suspension device 32 suspends the gutter body 30 at a lower position from the ventilation opening 20, and makes the gap between the ceiling wall portion 14 and the gutter body 30 to be the ventilation gap 28. 30 is a means for suspending and supporting. In this embodiment, the suspension device 32 is connected to one end side of the linear members 34a, 34b connecting the gutter body 30 and the arch pipe 18, and is engaged with the arch pipe 18 by being connected to one end side of the linear members 34a, 34b. And an engaging member 36. As shown in FIG. 4, the linear members 34 a and 34 b suspend the gutter 30 so as to form a sufficiently large ventilation flow path R bypassing vertically (leftward in the figure) from below vertically. I have. 3 and 4, the linear members 34a and 34b are arranged, for example, such that the short side of the gutter body is opposed to the low position side of the arch pipe 18 while approaching the short side, and the high position of the arch pipe 18 is also set. In a state where the long sides of the gutter body are arranged to face each other, the short side of the gutter body and the low position side of the arch pipe 18 are connected and connected by the first linear member 34a, respectively. The side and the upper part of the arch pipe 18 are connected and connected by a second linear member 34b and suspended. The first and second filament members 34a and 34b are made of, for example, elongated metal filaments, and have one end fixed to the gutter body 30 and the other end pivotally connected to the engaging member 36 about a horizontal axis. It is pivotally connected to obtain.
[0014]
As shown in FIG. 5, the engaging member 36 includes a cylindrical portion 38 that can be mounted on the outer peripheral side of the arch pipe 18, two parallel fixing plates 40 connected to the cylindrical portion, and their parallel fixing members. And a wing bolt 42 threaded through the plate 40. The fastening member 36 causes the parallel fixing plates 40 to approach each other by screwing the wing bolt 42, and the cylindrical portion 38 fixes the arch pipe 18 in a clamp shape. On the other hand, when the wing bolt is turned, the parallel fixing plates 40 are separated from each other, the cylindrical portion is relaxed, and the arched pipe can move freely along the longitudinal direction of the arch pipe. The engaging member 36 is disposed in the lateral direction so that the bolt axis of the wing bolt 42 is substantially perpendicular to the longitudinal direction of the arch pipe 18. For example, one end of the linear members 34 a and 34 b is By processing it into a shape and making the wing bolt penetrate the ring-shaped portion, the line members 34a and 34b can be rotated around the lateral direction as an axis. In the present embodiment, the engagement members are configured such that these pivot portions are formed on each of the engagement members 36. As shown in FIG. 6, the portion of the engaging member 36 to be engaged with the arch pipe has a two-part configuration in which the inner surfaces of the two arc plate portions 39 are opposed to each other, and the wing bolt penetrates the parallel fixing plate 40. The arc-shaped plate portion may be engaged with the pipe by screwing the screw 42 so that the arc-shaped plate portion and the parallel fixing plate are close to and separated from each other in a sandwiching manner.
[0015]
Further, in the present embodiment, as shown in FIG. 7, even at an intermediate position of the second linear member 34b, the linear member 34b is divided so that the respective divided linear members can pivot and rotate with each other. A pivot portion 44 is provided. The pivot portion 44 has, for example, a lateral support shaft parallel to the bolt axis of the engaging member 36, and allows the support shaft to pass through a part obtained by processing one end of each of the split lines into a ring shape. By doing so, the divisional filaments can be mutually rotated around the axis with the horizontal direction as the axis. As a result, as shown in FIG. 4, in a state where the engaging member 36 on the short side of the U-shape of the gutter 30 is locked to the lower position side of the arch pipe 18, the U-shape of the gutter 30 is formed. The engagement position of the long attachment member 36 can be set along the longitudinal direction of the arch pipe, and the work of suspending the gutter 30 to the arch pipe 18 can be performed smoothly and reliably. Note that a pivot structure may be provided at a connection portion between each of the linear members 34a and 34b and the gutter body, and an effect such as easy suspension work of the gutter body can be obtained as described above.
[0016]
Next, the operation of the ventilation structure for a vinyl house according to the present embodiment will be described. As shown in FIG. 1, FIG. 2, and FIG. 4, after constructing a single-building vinyl house having a ventilation opening 20 in the ceiling wall (or an existing vinyl house), for example, a length of about 2 m A plurality of gutter bodies are prepared, and the gutter bodies are placed at a position near the ventilation opening 20 on the inner side of the vinyl house 10 and at a low position vertically separated from the ventilation opening 20 at a required interval. It is suspended from the arch pipe 18 via the linear members 34a and 34b of the suspension support device 32. At this time, a continuous gutter 30 is formed while integrally connecting the gutters in the longitudinal direction of the vinyl house. When the gutter body 30 is suspended, the linear members 34a and 34b are rotatably connected to the engagement members 36 with the arch pipe 18, respectively. Since the pivot portion is provided at an intermediate position of the supporting second linear member 34b, it can be performed smoothly and reliably. When opening and closing the ventilation opening 20 via the winding mechanism 24 as needed, the gutter body and the suspension support device 32 can be smoothly opened and closed without obstruction. By suspending the gutter body 30 as described above, a bypass flow path R to the ventilation opening is formed, and hot air and moisture generated inside the house are satisfactorily ventilated through the ventilation opening 20. You. In the case of rainfall, the ventilation opening 20 may be left open without closing it, and rainwater falling from the ventilation opening 20 into the house, particularly rainwater falling vertically downward, is surely drained. It is received by the body 30 and collected at the end of the house, thereby preventing rainwater from falling into the house field. Therefore, it is not necessary for the worker to always be in the vicinity of the house, and the worker can work away from the house, and the number of times of opening and closing the ventilation opening due to bad weather is drastically reduced, thereby reducing the labor of the worker. . In particular, when the humidity is high such as during the rainy season, the ventilation can be performed while preventing the rainwater from falling into the field with the ventilation opening 20 opened. Further, the gutter body 30 can also receive the dew condensation generated on the top wall portion due to the steam inside the house falling from the edge of the ventilation opening.
[0017]
Next, FIGS. 8 and 9 illustrate an embodiment in which the ventilation structure of the vinyl house of the present invention is applied to, for example, a continuous-type vinyl house 100, and the same members as those in the above-described embodiment have the same reference numerals. And a detailed description thereof will be omitted. As shown in FIG. 9, the linked-type vinyl house 100 has, for example, two or more rows of buildings arranged side by side so as to communicate with each other in the width direction. The linked-type vinyl house 100 is horizontally parallel to the side wall portion 102 by a side wall portion 102 erected from the outermost ridge and a support 104 erected from the ground between each ridge. And a top wall portion 108 provided between the girder members and the upper end of the side wall portion and the girder member for each building. The top wall portion 108 has an arch pipe 18 erected between the girder members for each building and arranged at regular intervals in the longitudinal direction of the girder members. 8, the end of the arch pipe 18 is fixed to the upper end of the column pipe 105 of the spar member 106 or the side wall 102, respectively, and is a constituent material of the top wall 108. The entire side wall, the top wall, and both ends where the entrance is provided of the vinyl house are covered with vinyl resin or the like, and the inside of the house is substantially hermetically sealed. In the present embodiment, a ventilation opening 20 is provided on the valley V side between the buildings on the top wall, and the opening is formed to be openable and closable by a winding mechanism including a winding shaft 22. In the present embodiment, one end of the winding shaft 22 is connected to the shaft driving device 110, and the winding shaft 22 rotates forward and reverse through the shaft driving device to wind up and rewind vinyl. Open and close the opening. As shown in FIG. 8, the gutter body 30 is suspended from the arch pipe 18 via the linear members 34a and 34b below each of the ventilation openings 20 in the same manner as described above, thereby forming a ventilation structure. Accordingly, even in the ventilation structure of the multi-story vinyl house, the same operation and effect as described above can be obtained such that ventilation can be performed while preventing rainwater from falling into the house field in the open state of the ventilation opening 20.
[0018]
The ventilation structure of the vinyl house of the present invention described above is not limited to the above-described embodiment, and includes modifications that do not depart from the essence of the invention described in the claims.
[0019]
【The invention's effect】
As described above, according to the ventilation structure for a vinyl house of the present invention, the ventilation opening formed in the top wall of the vinyl house is located inside the vinyl house and below the opening. Work is performed away from the vinyl house by forming the ventilation structure of the vinyl house, which is provided with water receiving ventilation means capable of receiving rainwater falling from the opening at least vertically below while forming a ventilation gap. Even if you perform work or leave the house for work, rain can be prevented from falling into the house in rainy weather, etc., and crop disease and insect damage can be prevented well.Especially, open ventilation holes during humid conditions such as rainy season. It can be opened and ventilated well while preventing rainfall from falling into the house field. Further, in the case of a configuration in which the ventilation opening can be opened and closed, the number of times of opening and closing the opening can be drastically reduced, and the labor of the operator can be reduced. Further, since the water receiving and ventilating means can be retrofitted to the existing vinyl house, it can be constructed at low cost.
[0020]
The water receiving / ventilating means is a gutter body that can receive rainwater falling from the opening at least vertically downward, a gutter body suspended at a low position vertically separated from the ventilation opening at a required interval, and a gutter. And a suspension device that supports the body on the structural material of the vinyl house.The structure of the water receiving and venting means is specifically realized, and it can be easily manufactured at a low cost with a simple structure and maintenance is also possible. Easy to do.
[0021]
The gutter body is formed of a rainwater receiving plate having a receiving surface larger than the vertical projected area of the ventilation opening, and a plurality of locations of the gutter body are interposed through the linear member so as to form a bypassed sufficiently large ventilation flow path. The structure that is supported and suspended at least ensures that rainwater falling at least in the vertical direction and waterdrops that condense on the top wall of the vinyl house and fall from the ventilation opening edge are reliably received and sufficient ventilation can be performed. In addition, disease and insect damage of crops can be satisfactorily prevented.
[0022]
The suspension device includes a linear member connecting the gutter body and the structural material of the vinyl house, and a member connected to one end of the linear member and engaged at an arbitrary portion in the direction of the curved growth direction of the pipe structural material of the vinyl house. Attaching member, and further comprising a gutter body, a linear member, a connecting portion of the engaging member or a pivotal support portion that itself rotates around a horizontal axis. In addition, the work of suspending the gutter to a required location can be performed smoothly and reliably, and maintenance can be easily performed.
[Brief description of the drawings]
FIG. 1 is a schematic explanatory view of a vinyl house to which a ventilation structure for a vinyl house according to an embodiment of the present invention is applied.
FIG. 2 is an enlarged perspective explanatory view of a ventilation opening of the ventilation structure of FIG. 1;
FIG. 3 is an explanatory perspective view of a water receiving / ventilating means.
FIG. 4 is an explanatory longitudinal sectional view of a ventilation opening.
FIG. 5 is a detailed explanatory view of an engaging member.
FIG. 6 is an explanatory view of another mode of the engaging member.
FIG. 7 is an operation explanatory view of a gutter body, a linear member, and an engaging member.
FIG. 8 is a schematic internal explanatory view of an embodiment in which the ventilation structure of the vinyl house of the present invention is applied to a continuous-type vinyl house.
FIG. 9 is a schematic perspective explanatory view of a linked-type vinyl house.
FIG. 10 is an explanatory view of an opening portion of a conventional vinyl house ventilation structure.
[Explanation of symbols]
10 Vinyl House 14 Top Wall 18 Arch Pipe 20 Ventilation Opening 26 Water Receiving Ventilation Means 30 Gutter 32 Suspension Device 36 Engagement Member 44 Pivot

Claims (4)

It is a ventilation opening formed on the top wall of the vinyl house,
A water receiving / ventilating means which is capable of receiving rainwater falling from the opening at least vertically below the opening while forming a required ventilation space inside the vinyl house and below the opening; Ventilation structure. The water receiving ventilation means is a gutter body capable of receiving rainwater falling from the opening at least vertically downward, and a gutter body suspended at a low position vertically separated from the ventilation opening at a required interval,
The ventilation structure for a vinyl house according to claim 1, further comprising a suspension device for supporting the gutter body on a structural material of the vinyl house. The gutter body is composed of a rainwater receiving plate having a receiving surface larger than the vertical projected area of the ventilation opening,
3. The ventilation structure for a vinyl house according to claim 2, wherein a plurality of portions of the gutter body are suspended via a linear member so as to form a bypassed sufficiently large ventilation flow path. The suspension device includes a linear member connecting the gutter body and the structural material of the vinyl house, and a member connected to one end of the linear member and engaged at an arbitrary portion in the direction of the curved growth direction of the pipe structural material of the vinyl house. And a wearing member,
4. The vinyl house according to claim 3, further comprising a connecting portion of the gutter body, the linear member, and the engaging member, or a pivotal support portion that rotates in an axial direction about the horizontal direction. Ventilation structure.

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