JPH0743210U - Greenhouse ventilation equipment - Google Patents

Abstract

(57) [Summary] [Purpose] In a ventilation device that opens and closes a ventilation opening of a vinyl house by rotating a vinyl sheet winding pipe, the circumference when the pipe rotates without causing slippage when the pipe rotates. Make sure to move for the length of a minute. [Structure] A locking member 9 is provided at both ends of a pipe 8 for winding the opening / closing vinyl sheet 3a, and small hooks are densely erected, and small loops are densely erected on an aggregate 1a supporting the pipe. The locking member 6 is formed, and the deceleration hoist B is connected to the pipe 8. [Effect] Since the pipe 8 is rotated while the locking members 9 and 6 are engaged with each other, the pipe 8 can be moved by the length corresponding to the circumference when rotating without causing slippage.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a ventilation device for a greenhouse for growing crops.

[0002]

[Prior art]

 Conventionally, as a greenhouse for agricultural crops, metal pipe aggregates curved in an inverted U shape are arranged in parallel at a required interval, and the entire outside is covered with a vinyl sheet. It is known that a smooth mica wire holding band is stretched over the vinyl sheet so that it is not blown off by strong wind.

In addition, the vinyl greenhouse having the above-mentioned configuration is provided with an opening / closing type ventilation device that adjusts the internal temperature when the temperature inside the greenhouse becomes higher than necessary. The open-close type ventilation device includes a side ventilation system in which vinyl sheet parts corresponding to the hem parts on both sides of the house are rolled up, and a ceiling ventilation system in which a vinyl sheet part near the vinyl house or a vinyl sheet part in the vicinity thereof is rolled up.

[0004]

[Problems to be solved by the device]

 Of the above two ventilation methods, the side ventilation method is easy to operate because the pipe falls under its own weight when the vinyl sheet is unwound by the pipe, but only the air below the house can be ventilated and the winter season In the cold season such as spring, cold air may enter the house, which may adversely affect crops, especially tall ones such as flowers, cucumbers and tomatoes.

On the other hand, in the ceiling ventilation method, since the hot air escapes near the ceiling, it is possible to give a soft environment to the agricultural products, but the ventilation device requires complicated construction and creates strong wind. Has a very weak drawback. The ceiling ventilation system also includes a wind-up type ventilation device for winding vinyl sheets using the pipes described above, but since the pressure band is strongly pressed on the winding pipes, the pipes may slip and not move. There is a problem that it hinders the opening and closing of ventilation openings.

The ceiling portion of the vinyl house has an inclination angle of 20 to 30 degrees. At this inclination angle, the hoisting pipe is capable of hoisting because of the binding action of the holding band, but cannot be hoisted down. is there.

[0007]

[The purpose of the device]

 An object of the present invention is to provide an aeration device that does not cause slippage in the rotation of the pipe when the vinyl sheet is rolled up and unwound by the pipe and that can strongly hold the pipe in the rotational movement position.

[0008]

[Means for Solving the Problems]

 The present invention relates to a ventilation device that opens and closes a ventilation opening provided in a part of a vinyl house by rotating a vinyl sheet winding shaft member, and is provided at least at both ends of the vinyl sheet winding shaft member. Of the aggregate that supports the shaft member, one of them is provided with a female locking member in which a large number of small loops are densely erected upright, and the other is hooked to the loop to be freely joined. The gist of the present invention is to provide a male locking member in which a large number of hooks are densely erected and to allow the shaft member to rotate while the female locking member and the male locking member are engaged. .

[0009]

[Action]

 According to the above construction, the interposition of the female locking member and the male locking member prevents the slipping phenomenon of the shaft member during the rotation operation of the winding and unwinding shaft member of the vinyl sheet. Further, since there is no slippage phenomenon, when the shaft member rotates, the shaft member moves by the length corresponding to the circumference thereof, and therefore, no unreasonable tension or looseness occurs when the vinyl sheet is wound and unwound.

[0010]

Embodiment FIG. 1 to FIG. 2 show an embodiment of the present invention. In the figure, 1 is an aggregate made of metal pipe that is curved in an inverted U shape and constitutes a vinyl house, and 2 is a bone that connects the aggregates 1 arranged in parallel at a predetermined interval. Materials 3, 3 and 4 are vinyl sheets covering the outside of the aggregates 1 and 2, and 5 is a vinyl-free ventilation opening provided near the ceiling of the vinyl house.

Of the aggregates 1 arranged in parallel, the aggregates 1a near both ends and near the center are generally called “magic tapes” at the aggregates along the openings 5. One locking member 6 that constitutes the stopper A is attached via an arc-shaped base 7.

On the locking members 6 and 6 attached to the aggregates 1a, 1a on both ends of the house, a pipe 8 serving as a shaft member for winding the vinyl sheet is spanned, and both ends of the pipe 8 are The other locking member 9 constituting the locking tool A is wound via a sleeve 10. A vinyl sheet 3a having a length capable of covering the opening 5 formed on the ceiling side of the vinyl house is wound around the pipe 8, the winding end of the sheet 3a is bonded to the pipe 8, and the free end is on the ceiling side. It is bound to the aggregate 2. In the illustrated example, the locking member of the locking tool A is a female locking member of a loop, and the locking member 9 is a male locking member of a hook. The side may be a male locking member 9 and the pipe side may be a female locking member 6.

A speed reducer B is connected to one end of the pipe 8 so that the operation chain 11 can rotate the pipe 8 at a low speed. A pulley 12 is fixed to the other end of the pipe 8, a rope 13 is wound around the pulley 12, and a weight 14 is suspended at its free end. Reference numeral 15 is a band of a microphone wire for pressing the vinyl sheet 3 and the sheet 3a wound around the pipe 8, and its end is connected to a pile 16 fixed in the soil. Further, of the aggregates, a sponge member 17 is attached to the aggregate that defines the ventilation opening 5 so as not to leave a gap close to the vinyl sheet 3a when the opening is closed. Has been.

In the vinyl greenhouse having the above structure, the wind-in pipe 8 of the vinyl sheet 3a is rotated by the operation of the decelerating hoist B to open and close the ventilation opening 5 provided on the ceiling side of the house. be able to. At that time, since the pipe 8 and the aggregate 1a supporting the pipe 8 are in contact with each other by the locking members 9 and 6 which constitute the locking tool A called "magic tape" (trade name). However, due to the engaging action of both of them, when the pipe 8 makes one rotation, it reliably moves by the length of the circumference thereof, and no slip occurs between the two. Moreover, since the winding pipe 8 of the vinyl sheet is strongly and elastically pressed by the pressing band 15, the pressing force acts on the engaging surfaces of the locking members 9 and 6, and the aforementioned engaging action is further strengthened. In addition, the slip prevention effect is strengthened.

According to the structure in which the weight 14 is hung from the one end of the pipe 8 via the pulley 12 and the rope 13, the engaging members 9 and 6 on the opposite side of the speed reducer B are engaged. Can be further strengthened. Instead of the pulley 12, a gate-shaped metal fitting may be fixed to the pipe.

The long pipe 8 used to wind up and wind down the vinyl sheet may be a circular pipe, but if it is an M pipe, it is effective in strengthening the transmission torque.

The vinyl sheet 3 a wound around the pipe 8 to open and close the ventilation opening 5 is preferably a netted sheet. Ordinary vinyl sheets are stretchable and tend to collect water when it rains, but meshed sheets are not stretchable and are strong against wind and rain. In addition, according to the configuration in which the sponge member 17 is attached to the aggregate 2 defining the opening 5, the gap disappears when the vinyl sheet 3a is closed, and it is effective in maintaining the room temperature of the house during the winter.

[0018]

[Effect of device]

 As described above in detail, by applying the present invention, the length of the circumference of the vinyl sheet entrainment pipe that rotates the ventilation opening of the vinyl house can be prevented without slipping. Since it can only be moved reliably, the reliability of the opening and closing operation by the vinyl sheet winding pipe can be greatly improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a greenhouse provided with a ventilation device according to an embodiment of the present invention.

FIG. 2 is an enlarged side view of a locking tool.

[Explanation of symbols]

 1 Inverted U-shaped curved aggregate 2 Aggregate for connection 3,4 Vinyl sheet 5 Ventilation opening A Locking tool 6 Locking member 7 Pedestal 8 Vinyl sheet winding pipe 9 Locking member 10 Sleeve 3a Rolling vinyl sheet B Deceleration winding Machine 11 Operation chain 12 Pulley 13 Rope 14 Weight 15 Seat retainer band 16 Pile 17 Sponge member

Claims (2)

[Scope of utility model registration request] 1. A ventilation device for opening and closing a ventilation opening provided in a part of a vinyl house by rotating a vinyl sheet winding shaft member, wherein the ventilation device is provided on both sides of the vinyl sheet winding shaft member and at least both ends of the vinyl house. Among the aggregates that support the shaft member, one of them is provided with a female locking member in which a large number of small loops are densely erected upright, and the other is provided with a large number of freely engageable members by hooking on the loop. A vinyl house characterized in that a male locking member in which hooks are densely erected is provided, and the shaft member is rotatable while the female locking member and the male locking member are engaged with each other. Ventilation system. 2. Among the aggregates, a sponge member is provided in the aggregate that defines the ventilation opening, so as not to leave a gap in close contact with the vinyl sheet when the opening is closed. The ventilation device for a vinyl greenhouse according to claim 1.