Greenhouse ventilation structure

Abstract

The utility model discloses a greenhouse ventilation structure which comprises a shell, the shell is rotationally connected with a fan through a bearing, a switch is installed in the shell, the shell is rotationally connected with a cover body through a connecting shaft, the cover body is rotationally connected with a rope body through a connecting shaft, one end of the rope body is fixedly connected with a handle, and the other end of the rope body is fixedly connected with a fan. And one end of the shell is fixedly connected with a plurality of groups of arc-shaped sheets. The handle is used for driving the rope body to move, the handle is clamped at the positions of the two sets of arc-shaped pieces on the lowest portion, the rope body can drive the cover body to rotate upwards, the cover body does not make contact with one end of the shell and the switch, at the moment, the shell is opened, the switch can be triggered to enable the motor to operate to drive the fan to rotate, and therefore the fan is driven to rotate. According to the greenhouse ventilation device, airflow can flow into the greenhouse at the position of the shell under traction of the fan to conduct ventilation operation, ventilation operation of the greenhouse can be conducted only by matching the handle with the rope body to drive the cover body to rotate upwards, operation is relatively easy, and use is relatively convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field related to greenhouses, and in particular to a ventilation structure for a greenhouse. Background Art

[0002] When plants are cultivated in a greenhouse, in order to ensure the air flow and temperature inside, a ventilation structure is used to perform a certain degree of cooling and oxygen supplementation. There is currently a greenhouse ventilation structure (application number: 202320606847.9) that drives the protective cover to rotate by rotating the shaft to expand it outward, and ventilates the interior of the greenhouse body. By rotating the air induced shaft, the conversion of air inside and outside the greenhouse body is increased, thereby achieving a better ventilation effect.

[0003] The above-mentioned problem is that when ventilating the greenhouse, two sets of motors are needed to drive the protective cover to unfold and the air induced shaft to rotate in sequence before the corresponding ventilation operation can be carried out. When closing, the two sets of motors also need to be stopped in sequence before the ventilation work can be stopped. The operation is relatively troublesome and the use is relatively inconvenient. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a greenhouse ventilation structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A greenhouse ventilation structure comprises a shell, the shell is rotatably connected to a fan through a bearing, a switch is installed in the shell, the shell is rotatably connected to a cover body through a connecting shaft, the cover body is rotatably connected to a rope body through a connecting shaft, one end of the rope body is fixedly connected to a handle, one end of the shell is fixedly connected to multiple groups of arc-shaped sheets, two groups of the arc-shaped sheets are in contact with the handle

[0007] Preferably, a counterweight is fixedly connected to one end of the cover body.

[0008] Preferably, a motor is mounted on the housing, and an output end of the motor is connected to the fan.

[0009] Preferably, a rubber pad is fixedly connected to the other end of the cover body.

[0010] Preferably, a mounting frame is fixedly connected to the shell, a through opening is processed on the mounting frame, and the rope body passes through the through opening.

[0011] Preferably, the shell is rotatably connected to two sets of sheaves via a connecting shaft, and the two sets of sheaves are movably connected to the rope body.

[0012] Preferably, one end and the other end of the shell are both designed to be open.

[0013] The beneficial effects of the utility model are:

[0014] 1. Through the coordination between the switch, the cover and the rope, the rope is driven by the handle, and the handle is placed at the two sets of arc-shaped pieces at the bottom. The rope can drive the cover to rotate upward, and the cover will cancel the contact with one end of the shell and the switch. At this time, the shell will be opened, and the switch will be triggered to drive the motor to rotate the fan, so that the airflow can flow into the greenhouse at the shell under the traction of the fan to perform ventilation operation. Only the handle and the rope drive the cover to rotate upward to perform ventilation operation of the greenhouse. The operation is relatively simple and convenient.

[0015] 2. By cooperating between the counterweight block and the cover body, the weight of one end of the cover body is increased by using the counterweight block, so that when the rope is removed to pull the cover body, the cover body can be easily rotated downward to re-fit with the shell and contact the switch to stop the motor-driven fan. Due to the counterweight block, the fit stability of the cover body and the shell can be guaranteed to a certain extent, avoiding the cover body from being accidentally opened due to external airflow and other factors, and the fan can be rotated again for ventilation operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a greenhouse ventilation structure proposed by the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the structure of the middle arc piece, handle and groove wheel;

[0018] Figure 3 for Figure 1 Schematic diagram of the structure of the mounting block, motor and housing;

[0019] Figure 4 for Figure 1 Schematic diagram of the structure of the middle cover body, rubber pad and counterweight;

[0020] Figure 5 for Figure 1 Schematic diagram of the cross-sectional structure.

[0021] In the figure: 1. shell; 2. fan; 3. switch; 4. cover; 5. rope body; 6. arc piece; 7. handle; 8. groove wheel; 9. rubber pad; 10. counterweight; 11. opening; 12. installation frame; 13. motor. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Example 1, reference Figures 1 to 5 A greenhouse ventilation structure includes a shell 1, which is rotatably connected to a fan 2 through a bearing. A switch 3 is installed in the shell 1. The switch 3 is a trigger switch for the lighting in the refrigerator. When the cover 4 contacts the switch 3, the motor 13 can drive the fan 2 to rotate. When the cover 4 and the switch 3 are no longer in contact, the motor 13 can stop running. The working principle of the switch 3 is not described in detail here. The shell 1 is rotatably connected to the cover 4 through a connecting shaft. The cover 4 is rotatably connected to a rope 5 through a connecting shaft. The rope 5 can drive the cover 4 to rotate upward. The cover 4 will cancel the contact with one end of the shell 1 and the switch 3, and the switch 3 will be triggered to run the motor 13 to drive the fan 2 to rotate, so that the airflow can flow into the greenhouse at the shell 1 for ventilation operation under the traction of the fan 2.

[0024] In this embodiment, a counterweight 10 is fixedly connected to one end of the cover body 4, and the counterweight 10 is used to increase the weight of one end of the cover body 4. When the rope body 5 cancels the traction on the cover body 4 to rotate upward, the cover body 4 can stably rotate downward and contact one end of the shell 1 and the switch 3 to stop the motor 13 from driving the fan 2 to rotate. A motor 13 is installed on the shell 1. The model of the motor 13 is selected according to actual working requirements. The output end of the motor 13 is connected to the fan 2. A rubber pad 9 is fixedly connected to the other end of the cover body 4. A mounting frame 12 is fixedly connected to the shell 1. The mounting frame 12 is used to install the whole on an external greenhouse. A through opening 11 is processed on the mounting frame 12. The rope body 5 passes through the through opening 11. The shell 1 is rotatably connected to two sets of groove wheels 8 through a connecting shaft. The groove wheels 8 are used to guide the rope body 5. The two sets of groove wheels 8 are movably connected to the rope body 5. One end and the other end of the shell 1 are both designed to be open, so that the external airflow can pass through the shell 1 and enter the external greenhouse under the traction of the fan 2.

[0025] The working principle of this embodiment is as follows: when in use, the mounting frame 12 is fixed to the external greenhouse using an external connector, and the whole is installed in the greenhouse. When ventilation operation is required, the handle 7 is used to drive the rope body 5 to fit with the lowest arc-shaped piece 6, and the rope body 5 can rotate the cover body 4 upward, canceling the cover body 4 from fitting with the shell 1 and contacting the switch 3. The switch 3 will be triggered at this time, and the driving motor 13 will rotate the fan 2, and the fan 2 can introduce the outside air into the external greenhouse, so that the greenhouse can be ventilated. When not in use, the handle 7 is fit with the uppermost arc-shaped piece 6, and the rope body 5 can cancel the upward traction on the cover body 4. The cover body 4 will fit with one end of the shell 1 again due to the cooperation of the counterweight block 10, and contact with the switch 3, so that the fan 2 stops rotating, thereby canceling the ventilation operation.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A greenhouse ventilation structure, comprising a housing (1), It is characterized in that The shell (1) is rotatably connected to a fan (2) via a bearing, a switch (3) is installed in the shell (1), the shell (1) is rotatably connected to a cover body (4) via a connecting shaft, the cover body (4) is rotatably connected to a rope body (5) via a connecting shaft, one end of the rope body (5) is fixedly connected to a handle (7), and one end of the shell (1) is fixedly connected to multiple groups of arc-shaped sheets (6), and two groups of the arc-shaped sheets (6) are in contact with the handle (7).

2. A greenhouse ventilation structure according to claim 1, It is characterized in that A counterweight block (10) is fixedly connected to one end of the cover body (4).

3. A greenhouse ventilation structure according to claim 1, It is characterized in that A motor (13) is mounted on the housing (1), and an output end of the motor (13) is connected to the fan (2).

4. A greenhouse ventilation structure according to claim 1, It is characterized in that The other end of the cover body (4) is fixedly connected with a rubber pad (9).

5. A greenhouse ventilation structure according to claim 1, It is characterized in that The housing (1) is fixedly connected with a mounting frame (12), the mounting frame (12) is processed with a through opening (11), and the rope body (5) passes through the through opening (11).

6. A greenhouse ventilation structure according to claim 1, It is characterized in that The housing (1) is rotatably connected to two sets of groove wheels (8) via a connecting shaft, and the two sets of groove wheels (8) are movably connected to the rope body (5).

7. A greenhouse ventilation structure according to claim 1, It is characterized in that One end and the other end of the shell (1) are both designed to be open.

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