Automatic management temperature control equipment for agricultural greenhouse

Abstract

The utility model relates to the technical field of greenhouses, and discloses an agricultural greenhouse automatic management temperature control device which comprises a machine body, an axial flow fan is fixedly connected to one side of the machine body, a protective net is fixedly connected to the side, away from the machine body, of the axial flow fan, and a supporting frame is fixedly connected to the side, away from the machine body, of the protective net. The end, away from the machine body, of the supporting frame is fixedly connected with a flow guide outer cover, the supporting frame is fixedly connected with a flow guide inner cover, the flow guide inner cover is located between the flow guide outer cover and the axial flow fan, and a flow guide cavity is formed between the flow guide inner cover and the flow guide outer cover. According to the automatic management temperature control equipment for the agricultural greenhouse, hot air is guided to the flow guide groove through the flow guide cavity and discharged along the flow guide groove, the discharging speed of the hot air is reduced through cooperation of the flow guide cavity and the flow guide groove, and therefore the influence on crops is reduced.

Description

Technical Field

[0001] This utility model relates to the field of greenhouse technology, specifically to an automated temperature control device for agricultural greenhouse management. Background Technology

[0002] An agricultural greenhouse is a specialized building used for crop production or scientific research, employing translucent covering materials as all or part of its enclosure. Its main functions are to keep crops warm, moisturize, and prevent pests and diseases. Since its development, agricultural greenhouses have allowed people to enjoy summer-grown crops in winter, increasing food diversity and promoting more vigorous crop growth by improving the growing environment.

[0003] Agricultural greenhouses are usually equipped with temperature control devices, which consist of heating equipment and temperature detection and control equipment. The heating equipment produces hot air, which is then used in conjunction with the greenhouse's enclosure structure to retain the heat. The temperature detection equipment monitors the temperature inside the greenhouse and controls the heating equipment accordingly to maintain a constant temperature environment inside the greenhouse.

[0004] Existing temperature control equipment typically uses axial flow fans in conjunction with heating elements to produce heat. However, because the hot air blown out by the axial flow fans is quite strong, when the temperature control equipment is placed close to the crops, the crops near the exhaust vent of the axial flow fans are easily tilted by the airflow, which can adversely affect the normal growth of the crops. Therefore, we propose an automated temperature control device for agricultural greenhouses. Utility Model Content

[0005] The purpose of this utility model is to provide an automated temperature control device for agricultural greenhouses to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a body, an axial flow fan fixedly connected to one side of the body, a protective net fixedly connected to the side of the axial flow fan away from the body, a support frame fixedly connected to the side of the protective net away from the body, a flow guide outer cover fixedly connected to the end of the support frame away from the body, a flow guide inner cover fixedly connected to the support frame, the flow guide inner cover being located between the flow guide outer cover and the axial flow fan, and a flow guide cavity being provided between the flow guide inner cover and the flow guide outer cover;

[0007] The axial flow fan is fitted with a slidingly connected mounting ring. A flow guide groove is provided on the side of the mounting ring near the flow guide cover, and the flow guide groove is connected to the flow guide cavity.

[0008] Preferably, the mounting ring has a water storage chamber inside, the top of the mounting ring is fixedly connected to an exhaust pipe communicating with the water storage chamber, and the bottom of the mounting ring is fixedly connected to a mounting bracket.

[0009] Preferably, a motor is fixedly connected to the bottom of the machine body, and a lead screw is fixedly connected to the output end of the motor, with the lead screw threadedly connected to the mounting bracket.

[0010] Preferably, both sides of the mounting bracket are fixedly connected to fixing rings, each fixing ring is sleeved on the lead screw, and a brush is fixedly connected to the inner wall of the fixing ring, the brush being in contact with the surface of the lead screw.

[0011] Preferably, a number of air inlets communicating with an axial flow fan are provided on one side of the machine body, and casters are fixedly connected to the four corners of the bottom of the machine body, with the height of the casters being greater than the height of the motor.

[0012] Preferably, a control box is fixedly connected to the side of the machine body away from the air inlet, the control box is connected to the axial flow fan via wires, and a temperature detector is fixedly connected to the top of the control box.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention uses an axial flow fan to blow hot air into the guide cavity, which then directs the hot air towards the guide channel, allowing it to exit along the channel. The combination of the guide cavity and the guide channel reduces the exhaust speed of the hot air, thereby minimizing its impact on crops and effectively improving the device's protective function for crops inside the greenhouse. Furthermore, the curved shape of the guide channel increases the contact area between its inner wall and the water in the water storage chamber. The hot air contacting the guide channel, along with the hot air from the backflow fan, simultaneously heats the water inside the mounting ring, causing it to produce water vapor more quickly and maintaining humidity inside the greenhouse. This further enhances the device's auxiliary function in maintaining heat and moisture in greenhouses. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the body structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the outer and inner flow guide covers of this utility model.

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the mounting ring of this utility model;

[0019] Figure 5This is a schematic diagram showing the positional relationship between the outer guide cover, the inner guide cover, and the mounting ring of this utility model;

[0020] Figure 6 This utility model Figure 4 The diagram shows an enlarged view of area A.

[0021] In the diagram: 1. Body; 11. Air inlet; 12. Casters; 2. Axial flow fan; 21. Protective net; 22. Support frame; 23. Outer guide cover; 24. Inner guide cover; 25. Guide cavity; 3. Mounting ring; 31. Guide groove; 32. Water storage cavity; 33. Exhaust pipe; 34. Mounting bracket; 4. Motor; 41. Lead screw; 5. Fixing ring; 51. Brush; 6. Control box; 61. Temperature detector. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-6 This utility model provides a technical solution: an automated temperature control device for agricultural greenhouses, comprising a body 1, an axial flow fan 2 fixedly connected to one side of the body 1, several air inlets 11 connected to the axial flow fan 2 on one side of the body 1, a heating tube installed inside the body 1 to increase the internal temperature of the body 1, casters 12 fixedly connected to the four corners of the bottom of the body 1, a control box 6 fixedly connected to the side of the body 1 away from the air inlets 11, a control element installed inside the control box 6 to automatically control the axial flow fan 2 and the heating tubes, the control box 6 being connected to the axial flow fan 2 via wires, and a temperature detector 61 fixedly connected to the top of the control box 6.

[0024] Furthermore, the main body 1 is the main structure of the temperature control equipment. During use, the heating tube is turned on and the axial flow fan 2 is started. The axial flow fan 2 can draw outside air into the main body 1 through the air inlet 11, and heat the air through the heating tube. Then, the hot air is blown out through the exhaust end of the axial flow fan 2, thereby increasing the temperature inside the greenhouse. The temperature inside the greenhouse can be detected by the temperature detector 61, and the detection result is transmitted to the control box 6. The control element in the control box 6 can automatically control the axial flow fan 2 and the heating tube to start and stop according to the current temperature inside the greenhouse, thereby ensuring a constant temperature environment inside the greenhouse.

[0025] Combined with appendix Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a protective net 21 is fixedly connected to the side of the axial flow fan 2 away from the body 1. A support frame 22 is fixedly connected to the side of the protective net 21 away from the body 1. The protective net 21 provides an installation position for the support frame 22 and isolates the inside of the axial flow fan 2, preventing operators from accidentally cutting themselves by the fan blades when they put their hands inside the axial flow fan 2 during maintenance. A guide outer cover 23 is fixedly connected to the end of the support frame 22 away from the body 1, and a guide inner cover 24 is fixedly connected to the support frame 22. The inner wall of the guide outer cover 23 and the outer wall of the guide inner cover 24 are both arc-shaped wall structures. This arc-shaped wall structure can buffer the hot air entering the guide cavity 25, reduce the flow speed of the hot air, and further reduce the impact force when the hot air is discharged. A ventilation opening for communicating with the guide cavity 25 is provided in the middle of the guide inner cover 24. During operation, the axial flow fan 2 delivers hot air through its internal channels to the inner guide cover 24, and then through the air holes on the inner guide cover 24 into the guide cavity 25. The inner guide cover 24 is located between the outer guide cover 23 and the axial flow fan 2, and the guide cavity 25 is provided between the inner guide cover 24 and the outer guide cover 23. The axial flow fan 2 is fitted with a slidingly connected mounting ring 3. A guide groove 31 is opened on the side of the mounting ring 3 near the outer guide cover 23, and the guide groove 31 communicates with the guide cavity 25. A water storage cavity 32 is opened inside the mounting ring 3. An exhaust pipe 33 communicating with the water storage cavity 32 is fixedly connected to the top of the mounting ring 3. The exhaust pipe 33 can not only discharge the water vapor in the water storage cavity 32, but also add an appropriate amount of water to the water storage cavity 32 for humidification in the greenhouse. An mounting bracket 34 is fixedly connected to the bottom of the mounting ring 3.

[0026] Furthermore, during the operation of the axial flow fan 2, it can transport hot air along the inner wall of the guide shroud 24 into the guide cavity 25. At this time, the guide cavity 25 guides the hot air into the guide groove 31. Then, the hot air will be discharged along the arc-shaped inner wall of the guide groove 31. Through the cooperation of the guide cavity 25 and the guide groove 31, the flow velocity of the hot air is weakened, reducing the impact force of the discharged hot air and preventing crops near the axial flow fan 2 from being blown askew. During use, a certain amount of water can be filled into the water storage chamber 32 through the exhaust pipe 33. Then, when the axial flow fan 2 blows out hot air, the hot air can heat the inner wall of the mounting ring 3 and the inner wall of the guide groove 31 as it passes through the axial flow fan 2 and the guide groove 31, thereby heating the water in the water storage chamber 32. When the water temperature in the water storage chamber 32 rises, it will evaporate and the water vapor will be discharged through the exhaust pipe 33 to humidify the greenhouse.

[0027] Combined with appendix Figure 4 and Figure 6 As shown, a motor 4 is fixedly connected to the bottom of the machine body 1. The height of the caster wheel 12 is greater than the height of the motor 4. The caster wheel 12 supports the machine body 1. Since the height of the caster wheel 12 is greater than the height of the motor 4, the caster wheel 12 can maintain a certain safe distance between the motor 4 and the ground when supporting the machine body 1, avoiding the problem of the motor 4 rubbing against the ground and causing damage to the motor 4 when the machine body 1 moves. A lead screw 41 is fixedly connected to the output end of the motor 4. The lead screw 41 is threadedly connected to the mounting bracket 34. Fixing rings 5 ​​are fixedly connected to both sides of the mounting bracket 34. The fixing rings 5 ​​are all sleeved on the lead screw 41. A brush 51 is fixedly connected to the inner wall of the fixing ring 5. The brush 51 is in contact with the surface of the lead screw 41.

[0028] Furthermore, the motor 4 is turned on, causing the lead screw 41 to rotate. During the rotation of the lead screw 41, the mounting ring 3 can be moved along the axial flow fan 2 via the mounting bracket 34, thereby changing the distance between the mounting ring 3 and the guide cover 23. This adjusts the distance between the guide cavity 25 and the guide groove 31. When the distance between the guide cavity 25 and the guide groove 31 increases, the hot air discharge efficiency is improved, and the hot air discharge area is increased, thus increasing the speed of temperature rise inside the greenhouse. When the distance between the slots 31 decreases, the efficiency of hot air exhaust can be reduced, and the rate at which the temperature inside the greenhouse rises can be slowed down. Depending on the actual usage, the position of the mounting ring 3 can be adjusted. Meanwhile, as the lead screw 41 drives the mounting frame 34 to move, the brush 51 on the fixing ring 5 will continuously wipe the surface of the lead screw 41 to clean the dirt, dust and moisture adhering to the surface of the lead screw 41, improve the smoothness of the surface of the lead screw 41, and improve the stability of the lead screw 41 when transmitting power to the mounting frame 34.

[0029] Working principle: Move the machine body 1 to the designated position inside the greenhouse, then power on the device, and fill the water storage chamber 32 with an appropriate amount of clean water through the exhaust pipe 33. Then, according to specific needs, start the motor 4 to drive the lead screw 41 to rotate. During the rotation of the lead screw 41, the mounting ring 3 can be moved along the axial flow fan 2 through the mounting bracket 34, thereby changing the distance between the mounting ring 3 and the guide cover 23, thus adjusting the distance between the guide cavity 25 and the guide channel 31. When the distance between the guide cavity 25 and the guide channel 31 increases, the hot air exhaust efficiency can be improved and the hot air exhaust area can be increased, thereby increasing the speed of temperature rise inside the greenhouse. When the distance between the guide cavity 25 and the guide channel 31 decreases, the hot air exhaust efficiency can be reduced, thereby reducing the speed of temperature rise inside the greenhouse.

[0030] After adjustment, the temperature inside the greenhouse can be detected by the temperature detector 61, and the detection result can be transmitted to the control box 6. The control element in the control box 6 can automatically control the axial flow fan 2 and the heating tube to start according to the current temperature inside the greenhouse.

[0031] After the axial flow fan 2 and the heating pipe are turned on, the axial flow fan 2 can draw outside air into the machine body 1 through the air inlet 11, and heat the air through the heating pipe. Then, the hot air is blown out through the exhaust end of the axial flow fan 2. During the operation of the axial flow fan 2, it can transport the hot air along the inner wall of the guide cover 24 to the guide cavity 25. At this time, the guide cavity 25 guides the hot air and directs it into the guide groove 31. Then, the hot air will be discharged along the arc inner wall of the guide groove 31. Through the cooperation of the guide cavity 25 and the guide groove 31, the flow rate of the hot air is weakened and reduced. The impact force of the low-heat exhaust avoids the problem of crops near the axial flow fan 2 being easily blown crooked. During use, a certain amount of water can be filled into the water storage chamber 32 through the exhaust pipe 33. Then, when the axial flow fan 2 blows out hot air, the hot air can heat the inner wall of the mounting ring 3 and the inner wall of the guide groove 31 as it passes through the axial flow fan 2 and the guide groove 31, thereby heating the water in the water storage chamber 32. When the water temperature in the water storage chamber 32 rises, it will evaporate and the water vapor will be discharged through the exhaust pipe 33 to humidify the greenhouse.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated temperature control device for agricultural greenhouses, comprising a body (1), wherein an axial flow fan (2) is fixedly connected to one side of the body (1), and a protective net (21) is fixedly connected to the side of the axial flow fan (2) away from the body (1), characterized in that: A support frame (22) is fixedly connected to the side of the protective net (21) away from the machine body (1). A flow guide outer cover (23) is fixedly connected to the end of the support frame (22) away from the machine body (1). A flow guide inner cover (24) is fixedly connected to the support frame (22). The flow guide inner cover (24) is located between the flow guide outer cover (23) and the axial flow fan (2). A flow guide cavity (25) is provided between the flow guide inner cover (24) and the flow guide outer cover (23). The axial flow fan (2) is fitted with a slidingly connected mounting ring (3), and the mounting ring (3) has a guide groove (31) on the side near the guide cover (23), and the guide groove (31) is connected to the guide cavity (25).

2. The automated temperature control device for agricultural greenhouses according to claim 1, characterized in that: The mounting ring (3) has a water storage chamber (32) inside. The top of the mounting ring (3) is fixedly connected to an exhaust pipe (33) that communicates with the water storage chamber (32). The bottom of the mounting ring (3) is fixedly connected to a mounting bracket (34).

3. The automated temperature control device for agricultural greenhouses according to claim 2, characterized in that: A motor (4) is fixedly connected to the bottom of the body (1), and a lead screw (41) is fixedly connected to the output end of the motor (4). The lead screw (41) is threadedly connected to the mounting bracket (34).

4. The automated temperature control device for agricultural greenhouses according to claim 3, characterized in that: The mounting bracket (34) has fixed rings (5) on both sides. The fixed rings (5) are all sleeved on the lead screw (41). The inner wall of the fixed ring (5) is fixedly connected to a brush (51), and the brush (51) is in contact with the surface of the lead screw (41).

5. The automated temperature control device for agricultural greenhouses according to claim 1, characterized in that: The machine body (1) has several air inlets (11) connected to the axial flow fan (2) on one side. The bottom four corners of the machine body (1) are fixedly connected with casters (12), and the height of the casters (12) is greater than the height of the motor (4).

6. The automated temperature control device for agricultural greenhouses according to claim 1, characterized in that: A control box (6) is fixedly connected to the side of the body (1) away from the air inlet (11). The control box (6) is connected to the axial flow fan (2) by wires. A temperature detector (61) is fixedly connected to the top of the control box (6).

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