JPH063052U - Ventilator for cultivation house - Google Patents

Abstract

(57) [Summary] [Purpose] Ventilation can be performed easily, and the ventilation port can be opened and closed reliably. [Structure] A pair of upper and lower beam members are disposed above and above the ground in the front-rear direction, a ventilation port is formed between these beam members, and the elastically deformable skeleton member bent inward is used as the beam member. On both the left and right sides of the beam member, the lower ends of these frame members are fixed to the ground, and the upper ends of the left frame members are attached to one of the beam members, and the right frame member is also attached. The upper end of each of the beam members is attached to the other beam member, a jack is arranged between the pair of beam members, and the pair of beam members are brought close to and separated from each other by the jack to open and close the ventilation port. Configured to.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a ventilation system for a cultivation house to prevent vegetables and the like grown in fields from withering due to changes in temperature.

[0002]

[Prior art]

 Generally, cultivation houses are constructed by covering vinyl frames on arched frame members and fixing them.However, ventilation in conventional cultivation houses releases vinyl sheets from the frame members and rolls them up. It was done by making a ventilation hole.

[0003]

[Problems to be solved by the device]

 However, such a conventional ventilation structure has a problem that the work of winding up the vinyl sheet is troublesome. The present invention has been made in view of the above points, and a purpose thereof is to provide a ventilation device for a cultivation house that can easily perform ventilation and can surely open and close a ventilation port. To provide.

[0004]

[Means for Solving the Problems]

 The ventilation system of a cultivation house proposed to achieve the above purpose has a semi-tunnel dome type cultivation system that has a ventilation port that can be opened and closed at the top, and is constructed by stretching a vinyl sheet on a vertically long frame member. In a ventilation system for a house, a pair of upper and lower beam members are arranged above and above the ground in the front-rear direction, and a ventilation port is formed between these beam members. The left and right sides of the beam are arranged along the beam, the lower ends of these frame members are fixed to the ground, and the upper ends of the left frame members are attached to one of the beam members. , The upper end of the right frame member is attached to the other beam member, and the jack is arranged between the pair of beam members, and the operation means of the jack is arranged at an appropriate position. The pair of beams above and below By and it is characterized by being configured to open and close the ventilation opening.

[0005]

[Action]

 According to the ventilation device for a cultivation house of the present invention, a pair of upper and lower beam members are arranged in the front-rear direction above the ground, and a ventilation port is formed between these beam members to bend the inward elastic member. The deformable frame members are arranged on the left and right sides of the beam member along the beam member, the lower ends of these frame members are fixed to the ground, and the upper end of the left frame member is fixed to one of the beam members. Each of the beam members is attached to the beam member, the upper end of the right frame member is attached to the other beam member, and a jack is arranged between the pair of beam members, and the operation means of this jack is arranged at an appropriate position. Since it is installed, when the beam members are moved in the direction in which the pair of beam members are separated by the jack, the frame member is elastically deformed and bent to open the ventilation port.

On the other hand, when the beam members are moved by the jack in the direction in which the pair of beam members come close to each other, the frame member is restored to its original shape, and the ventilation port is closed.

[0007]

【Example】

 As shown in FIG. 1, the main body 1 of the cultivation house of the present invention has a half tunnel dome shape in which a vinyl sheet 3 is stretched over a vertically long frame member 2, and the upper part of the main body 1 of the cultivation house. A ventilation port 4 that can be opened and closed is provided. The cultivation house main body 1 has a pair of upper and lower beam members 5 and 5A arranged in the front-rear direction above the ground, and a ventilation port 4 is formed between these beam members 5 and 5A. The beam members 5 and 5A are made of steel material having a U-shaped cross section.

The frame member 2 is formed of an elastically deformable pipe material bent inward. A plurality of frame members 2 are arranged on both left and right sides of the beam members 5 and 5A, and are arranged along the beam members 5. The lower ends of the frame members 2 are fixed to the ground, and the upper ends of the frame members 2 arranged on the left side are attached to one beam member 5.

The upper end of the frame member 2 arranged on the right side is attached to the other beam member 5A. A plurality of jacks 6 are arranged between the pair of beam members 5 and 5A, and the beam members 5 and 5A come close to and away from each other by the expansion and contraction of the jack 6. The jack 6 is constructed such that a screw hole 6B is formed in an extendable jack body 6A, the screw rod 6C is screwed into the screw hole 6B, and the jack body 6A is extended / retracted by forward / reverse rotation of the screw rod 6C. There is. The screw rods 6C of the jacks 6 are connected so as to be coaxial with each other to form a long screw rod 6D.

Reference numeral 7 denotes an operation means of the jack 6, which has a sprocket 7A attached to an end of a long screw rod 6D, and a chain 7B is hung on the sprocket 7A. Therefore, when the long threaded rod 6D is rotated through the sprocket 7A while pulling the chain 7B, the jacks 6 simultaneously expand and contract by the same amount, and the pair of beam members 5, 5A come close to and separate from each other, and the ventilation port 4 becomes Open and close.

[0011]

[Effect of device]

 The ventilation device of the cultivation house of the present invention has a pair of upper and lower beam members arranged in the front-rear direction above the ground, and a ventilation port is formed between these beam members to allow elastic deformation inwardly bent. The frame members are arranged on the left and right sides of the beam member along the beam member, the lower ends of the frame members are fixed to the ground, and the upper ends of the left frame members are attached to one of the beam members. At the same time, the upper end of the right frame member is attached to the other beam member respectively, and a jack is arranged between the pair of beam members, and the operation means of this jack is arranged at an appropriate position. Since the ventilation port is configured to be opened and closed by moving the pair of beam members close to and apart from each other by the jack, ventilation can be performed, and the pair of beam members are separated by the ventilation jack of the cultivation house. Move the beam in the direction , When the frame member is elastically deformed and bent to open the ventilation port, and conversely, when a pair of beam members are brought close to each other, the frame member is restored to its original shape and the ventilation port can be closed. Can be done easily.

Moreover, since the jack is directly attached to the ventilation port, the ventilation port can be opened and closed without being affected by the design error of the cultivation house such as the dimensional error of the frame member.

[0013]

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a ventilation device for a cultivation house of the present invention.

FIG. 2 is an enlarged perspective view of the ventilation device of the cultivation house of the present invention.

FIG. 3 is an enlarged sectional view of the ventilation device of the cultivation house of the present invention.

[Explanation of symbols]

 2 Frame member 3 Vinyl sheet 4 Ventilation port 5 Beam member 5A Beam member 6 Jack 7 Operation means

Claims (1)

[Scope of utility model registration request] 1. A ventilation device for a semi-tunnel dome-shaped cultivation house, which has a ventilation port that can be opened and closed at the upper part, and is formed by stretching a vinyl sheet on a vertically long frame member. Along with arranging beam members in the front-rear direction, forming ventilation openings between these beam members, the elastically deformable frame members bent inward are provided on both the left and right sides of the beam members along the beam members. The upper end of the left frame member is attached to one of the beam members, and the upper end of the right frame member is attached to the other beam member. The ventilation port is installed by mounting the jack between the pair of beam members and by arranging the operating means of the jack at an appropriate position and moving the pair of beam members close to and apart from each other by the jack. Is configured to open and close Ventilation equipment for cultivation house characterized by.