CN211297833U - A butterfly wing type arch shed ventilation device - Google Patents

Abstract

The utility model relates to a butterfly wing type arched shed ventilation device, which comprises a ventilation opening arranged on the shed roof, an upper baffle curtain fixedly connected with the two sides of the ventilation opening, and a drainage gutter fixed below the ventilation opening, wherein the two sides of the drainage gutter are respectively provided with a movable fan, the movable fan is hinged with the drainage gutter through a movable fan hinged shaft, the width of the movable fan is larger than the distance from the movable fan hinged shaft to the lower end of the upper baffle curtain, the butterfly wing type arched shed ventilation device also comprises a driving device for driving the movable fan to rotate, when ventilation is not needed, the movable fan is driven to rotate through the driving device, so that the movable fan is attached to the upper baffle curtain, thereby sealing the ventilation opening, when ventilation is needed, the movable fan is driven to rotate through the driving device, so that the movable fan is separated from the upper baffle curtain, thereby realizing ventilation, rainwater can flow into the drainage gutter through the movable fan, thereby preventing the rainwater from flowing into the, the wind resistance of the ventilation device can be improved.

Description

A butterfly wing type arch shed ventilation device

technical field

The utility model relates to the technical field of greenhouses, in particular to the field of ventilation of greenhouses, in particular to a butterfly wing type arch shed ventilation device.

Background technique

In recent years, all parts of the country have been vigorously developing greenhouse planting technology, especially in the current northern winter greenhouse vegetable greenhouses are gradually entering large-scale production and planting. The traditional greenhouses have more daily operations. , the temperature in the greenhouse rises rapidly. At this time, in order to keep the temperature in the greenhouse constant, it is necessary to ventilate and dissipate the heat in the greenhouse.

Ventilation device is one of the requirements of greenhouses. The ventilation devices of greenhouses are generally located on the shoulders and roofs of the greenhouses. The shoulders generally use roll-film vents, and the roof adopts hump roll-film or roof pull-film ventilation devices. The existing ventilation device has poor wind resistance, and water is easy to enter when it rains.

SUMMARY OF THE INVENTION

Aiming at the deficiencies of the prior art, the utility model provides a butterfly-wing arched shed ventilation device, which not only has the function of agricultural film lighting, but also has the advantages of good ventilation effect, good wind resistance performance, and preventing rainwater from entering the shed.

The utility model is achieved through the following technical solutions, and provides a butterfly-wing type arch shed ventilation device, which includes a ventilation opening arranged on the roof, an upper curtain fixed on both sides of the ventilation opening, and a drainage sky fixed below the ventilation opening. The two sides of the drainage gutter are respectively provided with movable fans. The movable fan is hinged to the drainage gutter through the hinge shaft of the movable fan. Fan rotation drive.

In this scheme, the roof is provided with a vent, and a drainage gutter is provided below the vent. When no ventilation is required, the movable fan is driven to rotate by the driving device, so that the movable fan is attached to the upper curtain, thereby closing the vent. When ventilation is required, the movable fan is driven to rotate by the driving device, so that the movable fan is separated from the upper curtain, so as to realize ventilation, and the rainwater will flow into the drainage gutter through the movable fan, thereby preventing the rainwater from flowing into the greenhouse.

As an optimization, the drive device includes an intermediate tie rod hinged with the movable fan and an arc-shaped rack hinged with the intermediate tie rod, the inner ring of the arc-shaped rack is provided with a toothed portion, and also includes a gear meshed with the toothed portion and a drive motor for driving the rotation of the gear; the driving device further includes an arc-shaped rack guide sleeve arranged on the side of the arc-shaped rack away from the gear, and the arc-shaped rack guide sleeve is provided with an arc-shaped rack that is adapted to the arc-shaped rack. groove. In this scheme, the drive motor drives the gear to rotate, the gear drives the arc-shaped rack to move, and drives the movable fan to rotate through the intermediate pull rod.

As an optimization, there are two drive motors, a drive shaft is fixed on the rotating shaft of each drive motor, a gear is fixed on the drive shaft, and the two gears are respectively connected with the toothed parts of the two arc-shaped racks mesh. In this solution, there are two drive motors, so that the two movable fans are respectively driven to rotate in opposite directions by the two drive motors.

As an optimization, the middle pull rod is hinged on the lower end face of the movable fan. In this solution, the middle pull rod is hinged on the lower end face of the movable fan, so that the driving device is arranged in the greenhouse, which not only protects the driving device, but also facilitates operation.

As an optimization, the lower end of the movable fan is hinged on the upper edge of the drainage gutter. In this scheme, the lower end of the movable fan is hinged on the upper edge of the drainage gutter, so as to facilitate the flow of rainwater from the movable fan into the drainage gutter.

As an optimization, a rubber cover plate covering the hinge shaft of the movable fan is fixed on the movable fan. The rubber cover set in this scheme can prevent water leakage at the hinge shaft of the movable fan.

As an optimization, the movable fan includes a movable fan frame and a light-transmitting plastic film covering the movable fan frame. In this scheme, the movable fan includes a movable fan frame and a light-transmitting plastic film covering the movable fan frame, so that the movable fan can transmit light without affecting the lighting in the shed.

The beneficial effects of the utility model are as follows: the butterfly wing type arch shed ventilation device of the utility model is provided with a ventilation opening on the roof, and a drainage gutter is arranged below the ventilation opening. When no ventilation is required, the movable fan is driven by the driving device. Rotate to make the movable fan abut against the upper curtain, thereby closing the ventilation opening. When ventilation is required, the movable fan is driven to rotate by the driving device, so that the movable fan is separated from the upper curtain, so as to realize ventilation, and rainwater will flow in through the movable fan. Drainage gutter, thus preventing rainwater from flowing into the greenhouse, since the drainage gutter and movable fan are arranged below the ventilation opening, the wind resistance of the ventilation device can be improved.

Description of drawings

Fig. 1 is the schematic diagram of the closed state of the movable fan in the utility model;

Fig. 2 is the schematic diagram of the open state of the movable fan in the utility model;

Fig. 3 is the A-A plane sectional view in Fig. 1 of the utility model;

Shown in the picture:

1. Drainage gutter, 2. Movable fan, 3. Upper gear curtain, 4. Hinged shaft of movable fan, 5. Gear, 6. Arc-shaped rack, 7. Intermediate pull rod, 8. Arc-shaped rack guide sleeve.

Detailed ways

In order to clearly illustrate the technical features of the solution, the solution will be described below through specific implementations.

As shown in Figures 1 to 3, a butterfly-wing arch shed ventilation device of the present invention comprises a ventilation opening arranged on the roof 9, an upper curtain 3 fixed on both sides of the ventilation opening, and a ventilation opening fixed below the ventilation opening. Drainage gutter 1, the ventilation openings are arranged along the length direction of the roof 9, the upper curtain 3 is a hard board such as a wooden board, the plastic films on both sides of the ventilation opening are rolled on the upper curtain 3, and the upper curtain is 3 It is firmly fixed with the column of the greenhouse.

The drainage gutter 1 is a U-shaped water trough, the length of the drainage gutter 1 is not less than the length of the ventilation opening, and the drainage gutter 1 is firmly fixed to the column of the greenhouse.

The two sides of the drainage gutter 1 are respectively provided with movable fans 2 located under the upper curtain 3, the length of the movable fan 2 is not less than the length of the ventilation opening, and the lower end of the movable fan 2 is hinged to the drainage sky through the movable fan hinge shaft 4. On the upper edge of the groove 1, the width of the movable fan 2 is greater than the distance from the hinge shaft 4 of the movable fan to the lower end of the upper curtain 3. When the movable fan 2 is attached to the upper curtain 3, the movable fan 2 is parallel to the upper curtain 3. It also includes a driving device for driving the movable fan 2 to rotate.

The movable fan 2 includes a movable fan frame and a light-transmitting plastic film covering the movable fan frame, so that the movable fan 2 can transmit light. The movable fan 2 is fixedly connected with a rubber cover covering the hinge shaft 4 of the movable fan, and the length of the rubber cover is the same as that of the movable fan 2 .

The drive device includes a middle pull rod 7 hinged with the movable fan 2 and an arc-shaped rack 6 hinged with the middle pull rod 7. The middle pull rod 7 is hinged on the lower end surface of the movable fan 2. According to the length of the movable fan 2, it can be One to four middle pull rods 7 are hinged on the movable fan 2 , and in this embodiment, one middle pull rod 7 is hinged on each movable fan 2 .

The inner ring of the arc-shaped rack 6 is provided with a toothed portion, and also includes a gear 5 that meshes with the toothed portion and a drive motor that drives the gear 5 to rotate; The arc-shaped rack guide sleeve 8 on one side of the 5, the arc-shaped rack guide sleeve 8 is provided with an arc-shaped groove adapted to the arc-shaped rack 6, and the arc-shaped rack guide sleeve 8 and the drive motor are fixed on the on the shed column.

The arc-shaped rack guide sleeve 8 plays a guiding role for the arc-shaped rack 6, and ensures the meshing of the arc-shaped rack 6 and the gear 5. After the gear 5 stops rotating, the arc-shaped rack 6 is fixed, so that the movable fan 2 fixed.

The drive motor is provided with two, and a drive shaft is fixed on the rotating shaft of each drive motor, and a gear 5 is fixed on the drive shaft. mesh.

How to use the utility model: when no ventilation is required, the two movable fans 2 are respectively driven to rotate by two driving motors, so that the movable fans 2 are abutted on the upper curtain 3, thereby closing the ventilation openings. When ventilation is required, , through the two driving motors to drive the two movable fans 2 to rotate respectively, so that the movable fans 2 are separated from the upper curtain 3, so as to realize ventilation, and the rainwater will flow into the drainage gutter 1 through the movable fans 2, thereby preventing the rainwater from flowing into the greenhouse.

Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be realized by or using the existing technology, which will not be repeated here; the above embodiments and accompanying drawings are only used to illustrate the technology of the present invention. The solution is not intended to limit the present utility model. The present utility model is described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that the Changes, modifications, additions or substitutions do not depart from the purpose of the present invention, and should also belong to the protection scope of the claims of the present invention.

Claims (7)

1. The utility model provides a butterfly wing formula arched shed ventilation unit which characterized in that: including setting up vent, rigid coupling in the vent top (9) last shelves curtain (3) and fixing drainage gutter (1) below the vent, the both sides of drainage gutter (1) are equipped with activity fan (2) respectively, activity fan (2) are articulated through activity fan articulated shaft (4) and drainage gutter (1), and the width of activity fan (2) is greater than activity fan articulated shaft (4) and to the distance of last shelves curtain (3) lower extreme, still including driving activity fan (2) pivoted drive arrangement.

2. A butterfly-wing type arched shed ventilation unit as claimed in claim 1, wherein: the driving device comprises a middle pull rod (7) hinged with the movable fan (2) and an arc-shaped rack (6) hinged with the middle pull rod (7), wherein the inner ring of the arc-shaped rack (6) is provided with a tooth-shaped part, and the driving device also comprises a gear (5) meshed with the tooth-shaped part and a driving motor for driving the gear (5) to rotate; the driving device further comprises an arc-shaped rack guide sleeve (8) which is arranged on one side, away from the gear (5), of the arc-shaped rack (6), and an arc-shaped groove matched with the arc-shaped rack (6) is formed in the arc-shaped rack guide sleeve (8).

3. A butterfly-wing type arched shed ventilation unit as claimed in claim 2, wherein: the two driving motors are arranged, a driving shaft is fixedly connected to a rotating shaft of each driving motor, a gear (5) is fixedly connected to the driving shaft, and the two gears (5) are respectively meshed with the tooth-shaped parts of the two arc-shaped racks (6).

4. A butterfly-wing type arched shed ventilation unit as claimed in claim 2, wherein: the middle pull rod (7) is hinged on the lower end face of the movable fan (2).

5. A butterfly-wing type arched shed ventilation unit as claimed in claim 1, wherein: the lower end of the movable fan (2) is hinged to the upper edge of the drainage gutter (1).

6. A butterfly-wing type arched shed ventilation unit as claimed in claim 5, wherein: the movable fan (2) is fixedly connected with a rubber cover plate covering the hinged shaft (4) of the movable fan.

7. A butterfly-wing type arched shed ventilation unit as claimed in claim 1, wherein: the movable fan (2) comprises a movable fan framework and a light-transmitting plastic film covering the movable fan framework.

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