Automatic temperature control device for greenhouse

Abstract

The utility model belongs to the technical field of greenhouse temperature control devices, and particularly discloses an automatic temperature control device for a greenhouse, which comprises a greenhouse, the greenhouse is composed of a north wall, side walls, a steel frame and plastic cloth covering the steel frame, the lower portions of the north wall and the steel frame are fixedly connected with a plurality of temperature control pipes, and the temperature control pipes are connected with the side walls. A plurality of air holes are formed in the temperature control pipe, a heating box is arranged in the greenhouse, an air outlet of the heating box is communicated with one end of the temperature control pipe through a first hose, a fan is arranged on the air outlet, the other end of the temperature control pipe is communicated with an induced draft fan through a second hose, the induced draft fan is fixedly connected with the side wall, and an air outlet channel extends out of the side wall. A ventilation window is formed in the other side wall, a plurality of thermometers are fixedly connected in the greenhouse, and electromagnetic valves are arranged on the first hose and the second hose. The temperature control pipe is arranged, the heating device is arranged at one end of the temperature control pipe, the induced draft fan is arranged at the other end of the temperature control pipe, equipment is simple, the air holes are formed in the temperature control pipe, and cooling and heating are achieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of greenhouse temperature control devices, specifically an automatic temperature control device for greenhouses. Background Technology

[0002] A greenhouse is a building structure using light-transmitting covering materials. It forms a closed space by constructing a frame and covering it with light-transmitting materials such as plastic film, glass, or PC panels. The internal environment can be artificially controlled through ventilation openings, shade nets, insulation curtains, heating equipment (such as hot air blowers and underfloor heating), and irrigation systems to regulate temperature, light, water, and air conditions. This allows for off-season planting, improving crop yield and quality, and is widely used in the cultivation of vegetables, flowers, and fruits. Existing temperature control devices heat or cool down centered on the heat or cold source, resulting in slow and uneven heating or cooling, which negatively impacts the growth of crops around the heat or cold source. Therefore, there is a need to develop an automatic temperature control device that provides rapid and uniform temperature control to meet this requirement. Utility Model Content

[0003] To address the above technical problems, this utility model provides an automatic temperature control device for greenhouses, which can control the temperature quickly and evenly.

[0004] To solve the above technical problems, the technical solution adopted by this utility model is as follows: an automatic temperature control device for greenhouses, including a greenhouse, which is composed of a north wall, side walls, a steel frame, and a plastic sheet covering the steel frame. Several temperature control pipes are fixedly connected to the lower part of the north wall and the steel frame. Several air holes are opened on the temperature control pipes. A heating box is installed inside the greenhouse. The air outlet of the heating box is connected to one end of the temperature control pipe through a first flexible hose. A fan is installed on the air outlet. The other end of the temperature control pipe is connected to an exhaust fan through a second flexible hose. The exhaust fan is fixedly connected to the side wall and the air outlet extends outside the side wall. A ventilation window is opened on the other side of the side wall. Several thermometers are fixedly connected inside the greenhouse. Solenoid valves are installed on the first and second flexible hoses. A controller is installed inside the greenhouse. The fan, exhaust fan, thermometers, and solenoid valves are all electrically connected to and controlled by the controller.

[0005] Furthermore, an air inlet is connected to one side of the heating box, and an electric heating element is fixedly connected inside.

[0006] Furthermore, the heating element is electrically connected to and controlled by the controller.

[0007] Furthermore, an air exchange duct is fixedly connected inside the side wall, and the air inlet is connected to the air exchange duct.

[0008] Furthermore, a linear motor module is fixedly connected below the ventilation window, and a plug is fixedly connected to the moving terminal of the linear motor module, with the plug being slidably connected to the ventilation window.

[0009] Furthermore, the linear motor module is electrically connected to and controlled by the controller.

[0010] This utility model has the following advantages compared with the prior art:

[0011] 1. This utility model is equipped with a temperature control pipe, with a heating device at one end and an exhaust fan at the other end. The equipment is simple and low in cost. Air holes are opened on the temperature control pipe to blow hot air, achieving uniform and rapid heating. The exhaust fan is used to draw air away the hot air in the greenhouse, achieving a cooling effect. Ventilation windows are provided to balance the air pressure during ventilation.

[0012] 2. This utility model is equipped with a temperature control pipe and a plug. The plug is used to seal the ventilation window, which can effectively keep the heat out and prevent the heat inside the greenhouse from flowing out through the ventilation window when the temperature is too low in winter. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a side view of the present invention.

[0015] Figure 3 This is a schematic diagram of the heating box structure of this utility model.

[0016] The components are: 1. Greenhouse, 2. Side wall, 3. Air outlet, 4. Exhaust fan, 5. Second flexible hose, 6. Temperature control pipe, 7. Air vent, 8. First flexible hose, 9. Heating box, 10. Ventilation duct, 11. Linear motor module, 12. Ventilation window, 13. End cap, 14. Thermometer, 15. North wall, 16. Steel frame, 17. Electric heating element, 18. Air inlet, 19. Air outlet, 20. Fan. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figures 1-3An automatic temperature control device for a greenhouse is shown, comprising a greenhouse 1. The greenhouse 1 consists of a north wall 15, side walls 2, a steel frame 16, and a plastic sheet covering the steel frame 16. Several temperature control pipes 6 are fixedly connected to the lower parts of the north wall 15 and the steel frame 16. Several air vents 7 are provided on the temperature control pipes 6. A heating box 9 is installed inside the greenhouse 1. The air outlet 19 of the heating box 9 is connected to one end of the temperature control pipes 6 via a first flexible hose 8. A fan 20 is installed on the air outlet 19. The other end of the temperature control pipe 6 is connected via a second flexible hose 5. The exhaust fan 4 is connected and fixedly connected to the side wall 2, and the air outlet 3 extends out of the side wall 2. A ventilation window 12 is opened on the other side wall 2. Several thermometers 14 are fixedly connected inside the greenhouse 1. The first hose 8 and the second hose 5 are both equipped with tees, which are used to connect to the temperature control pipe 6. The first hose 8 and the second hose 5 are both equipped with solenoid valves. A controller is installed inside the greenhouse 1. The fan 20, the exhaust fan 4, the thermometers 14, and the solenoid valves are all electrically connected to the controller and controlled by the controller.

[0019] It should be noted that the greenhouse structure with earthen or brick north and side walls, a steel frame structure for the south wall and roof, and covered with plastic sheeting is a very mature existing structure. This utility model does not modify its main structure, so its connection method with the ground and the connection structure between them will not be described in detail here.

[0020] To facilitate automatic heating, an air inlet 18 is connected to one side of the heating box 9, and an electric heating element 17 is fixedly connected inside.

[0021] For ease of heating control, the heating element 17 is electrically connected to and controlled by the controller.

[0022] To facilitate air intake, a ventilation duct 10 is fixedly connected inside the side wall 2, and the air inlet 18 is connected to the ventilation duct 10.

[0023] To facilitate the automatic movement of the plug 13, a linear motor module 11 is fixedly connected below the ventilation window 12, and the plug 13 is fixedly connected to the moving terminal of the linear motor module 11. The plug 13 is slidably connected to the ventilation window 12.

[0024] The plug 13 has the same shape as the ventilation window 12 but is slightly smaller in size. The plug 13 has a wooden structure in the middle and is surrounded by insulation materials such as cotton quilts, sponges or snakeskin bags.

[0025] Among them, steel pipes or steel bars are pre-embedded in the side wall 2, one end of which protrudes from the wall and a base plate is welded on it. The base of the linear motor module 11 is fixedly connected to the base plate with bolts.

[0026] To facilitate the control of the movement of the plug 13, the linear motor module 11 is electrically connected to and controlled by the controller.

[0027] The specific working process of this utility model is as follows:

[0028] Example 1: When heating is required, close the solenoid valve on the second hose 5, turn on the fan 20 and the electric heating tube 17, and air enters the heating box 9 from the air exchange duct 10 and the air inlet 18, and enters the temperature control tube 6 through the fan 20 and the first hose 8, and enters the greenhouse 1 through the air hole 7, thereby realizing the heating function.

[0029] During this process, thermometer 14 monitors the temperature inside greenhouse 1, while linear motor module 11 blocks plug 13 on ventilation window 12.

[0030] Example 2: When cooling is required, close the solenoid valve on the first flexible hose 8, turn on the linear motor module 11, pull out the plug 13 from the ventilation window 12, turn on the exhaust fan 4, and the hot air in the greenhouse 1 enters the temperature control pipe 6 through the air hole 7 and is discharged from the exhaust fan 4, thereby achieving cooling.

Claims

1. An automatic temperature control device for a greenhouse, comprising a greenhouse (1), said greenhouse (1) being composed of a north wall (15), side walls (2), a steel frame (16), and a plastic sheet covering the steel frame (16), characterized in that: Several temperature control pipes (6) are fixedly connected to the lower part of the north wall (15) and the steel frame (16). Several air holes (7) are opened on the temperature control pipes (6). A heating box (9) is installed in the greenhouse (1). The air outlet (19) of the heating box (9) is connected to one end of the temperature control pipe (6) through a first flexible hose (8). A fan (20) is installed on the air outlet (19). The other end of the temperature control pipe (6) is connected to an exhaust fan (4) through a second flexible hose (5). (4) It is fixedly connected to the side wall (2) and the air outlet (3) extends out of the side wall (2). A ventilation window (12) is opened on the other side of the side wall (2). Several thermometers (14) are fixedly connected inside the greenhouse (1). Solenoid valves are installed on the first hose (8) and the second hose (5). A controller is installed inside the greenhouse (1). The fan (20), the exhaust fan (4), the thermometers (14), and the solenoid valves are all electrically connected to the controller and controlled by the controller.

2. The automatic temperature control device for greenhouses according to claim 1, characterized in that: The heating box (9) has an air inlet (18) connected to one side and an electric heating tube (17) fixedly connected inside.

3. The automatic temperature control device for greenhouses according to claim 2, characterized in that: The heating element (17) is electrically connected to and controlled by the controller.

4. The automatic temperature control device for greenhouses according to claim 2, characterized in that: A ventilation duct (10) is fixedly connected inside the side wall (2), and the air inlet (18) is connected to the ventilation duct (10).

5. The automatic temperature control device for greenhouses according to claim 1, characterized in that: A linear motor module (11) is fixedly connected below the ventilation window (12), and a plug (13) is fixedly connected to the moving terminal of the linear motor module (11). The plug (13) is slidably connected to the ventilation window (12).

6. The automatic temperature control device for greenhouses according to claim 5, characterized in that: The linear motor module (11) is electrically connected to and controlled by the controller.

Images