A solar greenhouse and a greenhouse control method based on automatic temperature control

Abstract

The present invention relates to the technical field of greenhouses, and in particular to a solar greenhouse and a greenhouse control method based on automatic temperature control, comprising a greenhouse body, a temperature control device, a temperature monitor and a wind speed monitor, wherein the temperature control device comprises an installation bin, an air intake structure and a temperature regulating mechanism; the air intake structure comprises an annular plate, which is arranged inside the installation bin; the temperature regulating mechanism comprises a first air collecting hood, two groups of first air ducts, two groups of second air ducts and a first driving structure, wherein one end of the first air duct is located inside the installation bin, and the other end of the first air duct extends into the greenhouse body, the second air duct is arranged inside the first air duct, and the input end of the second air duct passes through the bottom of the installation bin and extends into the greenhouse body, and the first driving structure is arranged in the middle of the first air collecting hood; the present invention arranges an installation bin, an air intake structure and a temperature regulating mechanism, thereby avoiding possible damage to plants when low-temperature air is directly discharged.

Description

Technical Field

[0001] The invention relates to the technical field of greenhouses, in particular to a solar greenhouse, and also to a greenhouse control method based on automatic temperature control. Background Art

[0002] The original intention of inventing greenhouses was to overcome the limitations of the natural environment and enable crops to grow and develop in non-natural environments. In modern automated greenhouses, intelligent control systems are the key to achieving automated control. When the intelligent control system cools down the interior of the greenhouse, it usually introduces external cold air directly into the greenhouse, and the flow rate of the external cold air is uncertain. If the external cold air enters the greenhouse at a faster speed, it may cause damage to the plants in the greenhouse.

[0003] Chinese patent CN221930844U discloses an energy-saving temperature-controlled greenhouse, which can change the length of the air duct by setting an air outlet adjustment component and inserting a wind shield into the vent, thereby reducing the flow rate of the air flow through the pipe, thereby weakening the wind force, thereby preventing strong winds from directly entering the vent and damaging the plants and facilities inside the greenhouse, and installing a wind speed sensor on the fan blade. According to the data of the wind speed sensor, a water pump is controlled by a PLC controller to extract the blocking liquid inside the straight tube and U-shaped pipe, so as to achieve the distance to push the wind shield into the vent according to the wind force, so as to adjust the air duct length of the vent according to the wind force.

[0004] Although the above solution solves the damage of fast-flowing cold air to plants in the greenhouse, there is still the problem of cold air directly entering the interior of the greenhouse. Specifically, cold air enters from the entrance of the greenhouse and then diffuses toward the interior of the greenhouse. When the temperature of the cold air is low, it diffuses to the area in contact with the plants, which may cause frostbite on the surface of the plants. Summary of the invention

[0005] In view of the above problems, a solar greenhouse is provided, which avoids the possible damage to the plants caused by direct discharge of low-temperature air by arranging an installation bin, an air intake structure and a temperature adjustment mechanism.

[0006] To solve the problems of the prior art, the present invention provides a solar greenhouse, comprising a greenhouse body and a temperature control device, a temperature monitor, and a wind speed monitor arranged on the top of the greenhouse body, the temperature control device comprising an installation bin, an air intake structure, and a temperature adjustment mechanism; the installation bin is arranged on the top of the greenhouse body; the air intake structure comprises an annular plate, the annular plate is arranged inside the installation bin, and a plurality of air inlets are arranged in an annular array on the annular plate; the temperature adjustment mechanism comprises a first air collecting hood, two groups of first air guide pipes, two groups of second air guide pipes, and a first driving structure, the first air collecting hood is arranged at the inner bottom of the installation bin, the two groups of first air guide pipes are respectively arranged on both sides of the first air collecting hood, one end of the first air guide pipe is located inside the installation bin, the other end of the first air guide pipe passes through the side wall of the installation bin and extends into the greenhouse body, a plurality of exhaust holes are opened on the first air guide pipe, the two groups of second air guide pipes correspond to the two groups of first air guide pipes respectively, the second air guide pipe is arranged inside the first air guide pipe, the input end of the second air guide pipe extends out of the first air guide pipe, and downwardly passes through the bottom of the installation bin and extends into the greenhouse body, and the first driving structure is arranged in the middle of the first air collecting hood.

[0007] Preferably, the first driving structure includes a main shaft, a first fan blade, a second fan blade and a second gas collecting hood; the middle part of the main shaft is connected to the bottom of the installation bin through a bearing; the first fan blade is arranged inside the installation bin, and the first fan blade is connected to one end of the main shaft; the second fan blade is arranged at the lower end of the installation bin, and the second fan blade is connected to the other end of the main shaft; the second gas collecting hood is arranged at the lower end of the installation bin, and an air outlet groove is opened on the side wall of the second gas collecting hood.

[0008] Preferably, the temperature regulating mechanism also includes a first opening and closing structure, which includes a first rectangular frame, two first opening and closing plates and two second driving structures; the first rectangular frame is fixedly arranged at the bottom of the installation bin; the two first opening and closing plates are respectively arranged on both sides of the first rectangular frame, and the first opening and closing plates are slidingly connected to the first rectangular frame; the two second driving structures are respectively arranged at both ends of the first rectangular frame, and the second driving structures are connected to the two first opening and closing plates.

[0009] Preferably, the temperature regulating mechanism also includes a second opening and closing structure, which is arranged on one side of the first opening and closing structure, and the second opening and closing structure includes a second opening and closing plate and a synchronous linkage structure; the second opening and closing plate is arranged on one side of the air outlet groove on the second air collecting hood; the synchronous linkage structure is arranged between the second opening and closing plate and the first opening and closing plate.

[0010] Preferably, the synchronous linkage structure includes a second rectangular frame, a connecting rod and a first spring; the second rectangular frame is installed on the air outlet groove; the connecting rod is slidably connected to the second rectangular frame, one end of the connecting rod is connected to the first opening and closing plate, and the second opening and closing plate is slidably set on the connecting rod; the first spring is sleeved on the connecting rod, and the two ends of the first spring are respectively connected to the end of the connecting rod and the second opening and closing plate.

[0011] Preferably, the temperature control device also includes two air outlet control mechanisms, which respectively correspond to the two groups of first air ducts, and the air outlet control mechanisms include a storage bin, a partition cloth, a traction structure and a winding structure; the storage bin is arranged on the outer wall of the installation bin; the partition cloth is stored in the storage bin; the traction structure is arranged at one end of the storage bin, and the traction structure is connected to one end of the partition cloth; the winding structure is arranged at the other end of the storage bin, and the winding structure is connected to the other end of the partition cloth.

[0012] Preferably, the temperature control device also includes a flow rate control mechanism, which includes a cover plate, a plurality of air inlet pipes, a fixed shaft, a plurality of partition plates and a plurality of guide connection structures; the cover plate is arranged on the upper end of the annular plate; a plurality of air inlet pipes are respectively arranged in a plurality of air inlets of the annular plate; the fixed shaft is vertically arranged in the middle of the cover plate; a plurality of partition plates are respectively corresponding to a plurality of air inlet pipes, one end of the partition plate is inserted in the air inlet pipe, and the other end of the partition plate is connected to the fixed shaft; a plurality of guide connection structures are respectively arranged at the upper ends of a plurality of air inlet pipes.

[0013] Preferably, the flow rate control mechanism further includes a third driving structure, which is disposed at a central position of the plurality of air inlet pipes and is connected to the plurality of air inlet pipes.

[0014] Preferably, the air intake structure further includes two lifting assemblies, which are respectively arranged on both sides of the installation bin, and the lifting assemblies are connected to the annular plate.

[0015] A greenhouse control method based on automatic temperature control is applied to a solar greenhouse and comprises the following steps:

[0016] S1, when the temperature inside the greenhouse body is too high, the annular plate rises upward, exposing the air inlet on the annular plate;

[0017] S2, the temperature monitor and wind speed monitor monitor the temperature and wind speed of the air outside the greenhouse body;

[0018] S3, when the wind speed is fast, the flow rate control mechanism limits the air flow rate entering the greenhouse body;

[0019] S4, when the temperature of the air outside the greenhouse body is low, the temperature regulating mechanism uses the air inside the greenhouse body to heat up the incoming low-temperature air, and at the same time the incoming low-temperature air cools down the high-temperature air inside the greenhouse body.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention is provided with an installation bin, an air intake structure and a temperature regulating mechanism. When the temperature inside the greenhouse body is too high, the temperature control device is started, and external low-temperature air is introduced through the air intake on the annular plate. The low-temperature air first enters the first air collecting hood, and then diffuses evenly into the greenhouse body through two groups of first air ducts and multiple exhaust holes thereon, thereby improving the uniformity of air distribution and ensuring that the low-temperature air can be fully mixed with the hot air in the greenhouse to achieve a rapid and effective cooling effect. When the temperature of the gas entering the greenhouse body is too low, the high-temperature air through the second air duct exchanges heat with the low-temperature air in the first air duct to achieve preheating of the low-temperature air, thereby avoiding possible damage to the plants when the low-temperature air is directly discharged.

[0022] 2. The present invention is provided with a main shaft, a first fan blade, a second fan blade, a second air collecting hood and a second rotary driver. When the temperature regulating mechanism is in operation, the second rotary driver drives the main shaft to rotate, thereby driving the first fan blade and the second fan blade to rotate in the same direction but in opposite directions of airflow, thereby ensuring that low-temperature air and high-temperature air can be effectively inhaled and processed at the same time. The suction force generated by the rotation of the first fan blade inhales the low-temperature air outside the greenhouse body, and the suction force generated by the rotation of the second fan blade causes the high-temperature air in the greenhouse body to be inhaled into the second air collecting hood and guided into the second air duct, thereby achieving continuous and uniform cooling of the low-temperature air.

[0023] 3. The present invention is provided with a first opening and closing structure, and the two second driving structures in the first opening and closing structure work simultaneously to drive the two first opening and closing plates to move away from each other. The first opening and closing plates cover the input port of the second air duct to prevent the gas from flowing along the second air duct, thereby effectively avoiding the problem of excessive temperature difference between the middle and the two ends caused by the directional flow of high-temperature gas inside the greenhouse body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a stereoscopic diagram of a solar greenhouse of the present invention.

[0025] Figure 2 It is a stereoscopic diagram of a temperature control device, a temperature monitor and a wind speed monitor in a solar greenhouse of the present invention.

[0026] Figure 3 It is a left view of a temperature control device, a temperature monitor and a wind speed monitor in a solar greenhouse of the present invention.

[0027] Figure 4 yes Figure 3 Stereoscopic cross-sectional view at AA in the middle.

[0028] Figure 5 It is a stereoscopic diagram of a first air guide pipe, a second air guide pipe and a first driving structure in a solar greenhouse of the present invention.

[0029] Figure 6 It is a stereoscopic diagram of a second air guide pipe and a first opening and closing structure in a solar greenhouse of the present invention.

[0030] Figure 7 It is a stereoscopic diagram of a second gas collecting hood, a first opening and closing structure and a second opening and closing structure in a solar greenhouse of the present invention.

[0031] Figure 8 It is a stereoscopic diagram of an installation bin, a first air guide pipe and an air outlet control mechanism in a solar greenhouse of the present invention.

[0032] Fig. 9 It is a stereoscopic diagram of an annular plate and a flow rate control mechanism in a solar greenhouse of the present invention.

[0033] Fig.10 This is a stereoscopic diagram of an air inlet pipe, a fixed shaft, a partition plate, a guide connection structure and a third drive structure in a solar greenhouse of the present invention.

[0034] Fig.11 It is a stereoscopic diagram of an installation bin, an annular bin and a lifting assembly in a solar greenhouse of the present invention.

[0035] The numbers in the figure are: 1. greenhouse body; 2. installation bin; 3. air intake structure; 31. annular plate; 32. lifting assembly; 321. screw rod; 322. first moving block; 323. first rotary driver; 4. temperature regulating mechanism; 41. first air collecting hood; 42. first air duct; 43. second air duct; 44. first driving structure; 441. main shaft; 442. first fan blade; 443. second fan blade; 444. second air collecting hood; 445. second rotary driver; 45. first opening and closing structure; 451. first rectangular frame; 452. first opening and closing plate; 453. second driving structure; 4531. linear driver; 4532. first driving plate; 46. second opening and closing structure; 461. second Opening and closing plate; 462, synchronous linkage structure; 4621, second rectangular frame; 4622, connecting rod; 4623, first spring; 5, air outlet control mechanism; 51, storage bin; 52, partition cloth; 53, traction structure; 531, tractor; 532, second spring; 54, winding structure; 541, winding roller; 542, third rotary drive; 6, flow rate control mechanism; 61, cover plate; 62, air inlet pipe; 63, fixed shaft; 64, partition plate; 65, guide connection structure; 651, guide rod; 652, second moving block; 66, third drive structure; 661, rotating connecting frame; 662, second drive plate; 663, fourth rotary drive; 7, temperature monitor; 8, wind speed monitor. DETAILED DESCRIPTION

[0036] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] Reference Figures 1 to 11 As shown: A solar greenhouse, comprising a greenhouse body 1 and a temperature control device, a temperature monitor 7, and a wind speed monitor 8 arranged on the top thereof, wherein the temperature control device comprises an installation bin 2, an air intake structure 3, and a temperature adjustment mechanism 4; the installation bin 2 is arranged on the top of the greenhouse body 1; the air intake structure 3 comprises an annular plate 31, which is arranged inside the installation bin 2, and the annular plate 31 has a plurality of air intakes in an annular array, and the air intakes are located outside the installation bin 2; the temperature adjustment mechanism 4 comprises a first air collecting hood 41, two groups of first air guide pipes 42, two groups of second air guide pipes 43, and a first driving structure 44, wherein the first air collecting hood 41 is arranged on the installation bin 2 The inner bottom of the greenhouse 41 is provided with two groups of first air ducts 42, one end of the first air duct 42 is located inside the installation bin 2, and the other end of the first air duct 42 passes through the side wall of the installation bin 2 and extends into the greenhouse body 1. The first air duct 42 is provided with a plurality of exhaust holes. The two groups of second air ducts 43 correspond to the two groups of first air ducts 42, respectively. The second air ducts 43 are arranged inside the first air ducts 42, and the input ends of the second air ducts 43 extend out of the first air duct 42, and downwardly pass through the bottom of the installation bin 2 and extend into the greenhouse body 1. The first driving structure 44 is arranged in the middle of the first air duct 41.

[0038] When the temperature in the greenhouse body 1 is high, the temperature control device will start working. At this time, the air inlet on the annular plate 31 is located at the upper end of the installation bin 2, allowing external low-temperature air to enter the greenhouse body 1. The low-temperature air first enters the first air collecting hood 41, and then is diverted to two groups of first air guide pipes 42. The first air guide pipes 42 are provided with multiple exhaust holes to ensure that the low-temperature air can be evenly diffused into the greenhouse body 1, effectively reducing the indoor temperature. If the temperature monitor 7 detects that the temperature outside the greenhouse body 1 is too low and may harm the growth of the plants, the temperature regulating mechanism 4 will further play a role. At this time, the low-temperature air continues to enter the first air duct 42, while the high-temperature air in the greenhouse body 1 enters the second air duct 43. When the high-temperature air flows in the second air duct 43, the temperature of the second air duct 43 is increased, thereby preheating the low-temperature air in the first air duct 42. At the same time, the temperature of the air in the second air duct 43 is reduced after heat exchange and then discharged into the greenhouse body 1. This process not only realizes the preheating of the low-temperature air, but also effectively reduces the temperature in the greenhouse body 1, thereby avoiding the possible damage to the plants when the low-temperature air is directly discharged.

[0039] Reference Figure 4 and Figure 5As shown: the first driving structure 44 includes a main shaft 441, a first fan blade 442, a second fan blade 443, a second gas collecting hood 444 and a second rotation driver 445; the middle part of the main shaft 441 is connected to the bottom of the installation bin 2 through a bearing; the first fan blade 442 is arranged inside the installation bin 2, and the first fan blade 442 is connected to one end of the main shaft 441; the second fan blade 443 is arranged at the lower end of the installation bin 2, and the second fan blade 443 is connected to the other end of the main shaft 441, and when the first fan blade 442 and the second fan blade 443 rotate in the same direction, the directions of their effects on the airflow are opposite; the second gas collecting hood 444 is arranged at the lower end of the installation bin 2, and an air outlet groove is opened on the side wall of the second gas collecting hood 444; the second rotation driver 445 is arranged at the lower end of the second gas collecting hood 444, and the output end of the second rotation driver 445 is connected to the main shaft 441.

[0040] When the temperature regulating mechanism 4 is activated to regulate the low-temperature air entering the greenhouse body 1, the first driving structure 44 is immediately started. In this process, the second rotary driver 445 acts as a power source to drive the main shaft 441 to rotate. The rotation of the main shaft 441 is synchronously transmitted to the first blade 442 and the second blade 443, so that the first blade 442 and the second blade 443 rotate in the same direction, but the first blade 442 and the second blade 443 act on the airflow in opposite directions. Specifically, the first blade 442 located inside the installation bin 2 has a The suction generated by the rotation effectively sucks in the low-temperature air outside the greenhouse body 1 and guides it to the first air duct 42. At the same time, the second fan blade 443 located at the lower end of the installation bin 2 generates suction through its rotation so that the high-temperature air in the greenhouse body 1 is sucked into the second air collecting hood 444, and then guided to the second air duct 43 through the side wall of the second air collecting hood 444, so that the low-temperature air and the high-temperature air can be introduced into the first air duct 42 and the second air duct 43 respectively in a uniform manner, thereby achieving continuous and uniform cooling of the low-temperature air.

[0041] Reference Figure 4 and Figure 6As shown: the temperature regulating mechanism 4 also includes a first opening and closing structure 45, the first opening and closing structure 45 includes a first rectangular frame 451, two first opening and closing plates 452 and two second driving structures 453; the first rectangular frame 451 is fixedly arranged at the bottom of the installation bin 2; the two first opening and closing plates 452 are respectively arranged on both sides of the first rectangular frame 451, and the first opening and closing plates 452 are slidably connected to the first rectangular frame 451; the two second driving structures 453 are respectively arranged at both ends of the first rectangular frame 451, the second driving structure 453 is connected to the two first opening and closing plates 452, the second driving structure 453 includes a linear driver 4531 and two first driving plates 4532, the linear driver 4531 is connected to the end of the first rectangular frame 451, the two first driving plates 4532 are respectively arranged on both sides of the output end of the linear driver 4531, and the two ends of the first driving plate 4532 are respectively axially connected to the linear driver 4531 and the first opening and closing plates 452.

[0042] When the low-temperature gas is directly discharged into the greenhouse body 1 through the first air duct 42 without further heating, the low-temperature gas will be evenly distributed inside the greenhouse body 1 along the exhaust holes on the first air duct 42. If the first driving structure 44 is in operation, the higher-temperature gas between the two groups of first air ducts 42 will be guided to the two ends of the greenhouse body 1, resulting in a significant temperature difference between the central area and the two ends of the greenhouse body 1. By setting the first opening and closing structure 45, the two second driving structures 453 in the first opening and closing structure 45 work simultaneously, and the linear drive 4531 inside the second driving structure 453 is driven by the first driving structure 453. The two first driving plates 4532 apply a force moving away from each other to the two first opening and closing plates 452, causing the two first opening and closing plates 452 to move toward the two groups of second air ducts 43 respectively and eventually cover their input ports, thereby blocking the path of the air sucked in by the second fan blades 443 from the second air collecting hood 444 to enter the second air duct 43, forcing this part of the air to be redirected and released back into the greenhouse body 1 through the air outlet groove, thereby effectively avoiding the problem of excessive temperature difference between the middle and the two ends of the greenhouse body 1 due to the directional flow of high-temperature gas, and achieving a balanced distribution of temperature inside the greenhouse.

[0043] Reference Figure 4 and Figure 7 As shown: the temperature regulating mechanism 4 also includes a second opening and closing structure 46, which is arranged on one side of the first opening and closing structure 45, and the second opening and closing structure 46 includes a second opening and closing plate 461 and a synchronous linkage structure 462; the second opening and closing plate 461 is arranged on one side of the air outlet groove on the second air collecting hood 444; the synchronous linkage structure 462 is arranged between the second opening and closing plate 461 and the first opening and closing plate 452.

[0044] When the incoming low-temperature air needs to be heated, the second fan blade 443 blows the high-temperature air into the second air duct 43, but the air outlet slot is in an open state, and the high-temperature air will flow out of the second air collecting cover 444 from the air outlet slot. By setting the second opening and closing structure 46, when the first opening and closing plate 452 needs to cover the input end of the second air duct 43, the movement of the first opening and closing plate 452 is transmitted to the second opening and closing plate 461 in real time through the synchronous linkage structure 462, ensuring that when the first opening and closing plate 452 performs the closing operation, the second opening and closing plate 461 It will be separated from the air outlet groove accordingly, so that the high-temperature gas sucked into the second air collecting hood 444 by the second fan blades 443 can be discharged in time. On the contrary, when the first opening and closing plate 452 moves toward the inside of the first rectangular frame 451, that is, when the input end of the second air duct 43 is opened, the synchronous linkage structure 462 will play a role again, driving the second opening and closing plate 461 to tightly abut against the air outlet groove, effectively preventing the air in the second air collecting hood 444 from flowing out of the air outlet groove, thereby realizing efficient utilization of high-temperature air and avoiding unnecessary heat loss.

[0045] Reference Figure 7 As shown: the synchronous linkage structure 462 includes a second rectangular frame 4621, a connecting rod 4622 and a first spring 4623; the second rectangular frame 4621 is installed on the air outlet groove; the connecting rod 4622 is slidably connected to the second rectangular frame 4621, one end of the connecting rod 4622 is connected to the first opening and closing plate 452, and the second opening and closing plate 461 is slidably set on the connecting rod 4622; the first spring 4623 is sleeved on the connecting rod 4622, and the two ends of the first spring 4623 are respectively connected to the end of the connecting rod 4622 and the second opening and closing plate 461.

[0046] The first opening and closing plate 452 drives the second opening and closing plate 461 to move through the synchronous linkage structure 462. When the second opening and closing plate 461 abuts against the air outlet groove, the input end of the second air duct 43 may not be fully opened. By setting the synchronous linkage structure 462 to a second rectangular frame 4621, a connecting rod 4622 and a first spring 4623, the movement of the first opening and closing plate 452 is transmitted to the second opening and closing plate 461 through the connecting rod 4622 and the first spring 4623. When the second opening and closing plate 461 abuts against the air outlet groove, the first opening and closing plate 452 continues to drive the connecting rod 4622 and the second opening and closing plate 461 to slide relative to each other, and the end of the connecting rod 4622 continues to apply a force to the first spring 4623 to compress the first spring 4623, thereby ensuring that the input end of the second air duct 43 can be fully opened after the second opening and closing plate 461 is tightly abutted against the air outlet groove.

[0047] Reference Figure 4 and Figure 8As shown: the temperature control device also includes two air outlet control mechanisms 5, the two air outlet control mechanisms 5 correspond to the two groups of first air ducts 42 respectively, the air outlet control mechanism 5 includes a storage bin 51, a partition cloth 52, a traction structure 53 and a winding structure 54; the storage bin 51 is arranged on the outer wall of the installation bin 2; the partition cloth 52 is stored in the storage bin 51; the traction structure 53 is arranged at one end of the storage bin 51, and the traction structure 53 is connected to one end of the partition cloth 52, the traction structure 53 includes a traction vehicle 531 and two second springs 532, the traction vehicle 531 is arranged at the first air duct 42 On the top, the partition cloth 52 is connected to the tractor 531, and the two second springs 532 are respectively arranged at the two ends of the tractor 531, and the two ends of the second springs 532 are respectively connected to the tractor 531 and the storage bin 51; the winding structure 54 is arranged at the other end of the storage bin 51, and the winding structure 54 is connected to the other end of the partition cloth 52, and the winding structure 54 includes a winding roller 541 and a third rotating driver 542, the winding roller 541 is connected to the partition cloth 52, and the third rotating driver 542 is arranged outside the storage bin 51, and the third rotating driver 542 is connected to the winding roller 541.

[0048] Since the temperature of the gas in the first air duct 42 gradually increases from one end close to the annular plate 31 to the other end, when the air in the second air duct 43 has a poor heating effect on the low-temperature air at one end of the first air duct 42 close to the annular plate 31, this part of the low-temperature air may directly enter the interior of the greenhouse body 1. By setting the air outlet control mechanism 5, in the initial state, the partition cloth 52 is wound around the winding roller 541. As the temperature of the gas in the first air duct 42 changes, the third rotary driver 542 drives the winding roller 541 to release an appropriate amount of the partition cloth 52. The second spring 532 pushes the tractor 531 to move along the first air duct 42, and the tractor 531 drives the partition cloth 52 to cover part of the exhaust holes. The low-temperature gas discharged from these covered exhaust holes is located above the partition cloth 52. The partition cloth 52 prevents the low-temperature gas from sinking. After the low-temperature air is mixed with the high-temperature gas above the partition cloth 52, it is evenly diffused to various places inside the greenhouse body 1, thereby preventing the low-temperature gas from directly sinking into the greenhouse body 1 and causing the local temperature to be too low.

[0049] Reference Fig. 9 and Fig.10As shown in the figure, the temperature control device also includes a flow rate control mechanism 6, which includes a cover plate 61, a plurality of air inlet pipes 62, a fixed shaft 63, a plurality of partition plates 64 and a plurality of guide connection structures 65; the cover plate 61 is covered on the upper end of the annular plate 31; the plurality of air inlet pipes 62 are respectively arranged in the plurality of air inlets of the annular plate 31, and a filter screen is arranged at the air inlet end of the air inlet pipe 62; the fixed shaft 63 is vertically arranged in the middle of the cover plate 61; the plurality of partition plates 64 are respectively connected to the air inlet of the annular plate 31. Corresponding to a number of air intake pipes 62, one end of the partition plate 64 is inserted into the air intake pipe 62, and the other end of the partition plate 64 is connected to the fixed shaft 63; a number of guide connection structures 65 are respectively arranged at the upper ends of the number of air intake pipes 62, and the guide connection structure 65 includes a guide rod 651 and a second movable block 652, one end of the guide rod 651 is connected to the cover plate 61, and the second movable block 652 is slidably arranged on the guide rod 651, and the second movable block 652 is connected to the air intake pipe 62.

[0050] In the initial state, the partition plate 64 completely blocks the internal passage of the air inlet pipe 62, preventing external air from directly flowing into the annular plate 31. At this time, the wind speed monitor 8 continuously monitors the air flow rate on the upper part of the greenhouse body 1. When a faster air flow rate is detected, the second moving block 652 drives the air inlet pipe 62 to move a smaller distance along the guide rod 651, resulting in a tiny gap between the inner wall of the air inlet pipe 62 and the partition plate 64, allowing some air to flow in in a restricted manner. At the same time, the partition plate 64 forms a certain obstruction to the high-speed airflow, reducing the air flow rate entering the annular plate 31. On the contrary, when the wind speed monitor 8 detects that the air flow rate is slower, the second moving block 652 drives the air inlet pipe 62 to move a larger distance along the guide rod 651, thereby increasing the gap between the inside of the air inlet pipe 62 and the partition plate 64, reducing the obstruction of the partition plate 64 to the airflow, and allowing more air to enter the annular plate 31 at a faster flow rate, thereby achieving the regulation of the airflow rate entering the annular plate 31.

[0051] Reference Fig. 9 and Fig.10 As shown: the flow rate control mechanism 6 also includes a third driving structure 66, which is arranged at the central position of the plurality of air inlet pipes 62, and the third driving structure 66 is connected to the plurality of air inlet pipes 62, the third driving structure 66 includes a rotating connecting frame 661, a plurality of second driving plates 662 and a fourth rotating driver 663, the rotating connecting frame 661 is connected to the fixed shaft 63 through a bearing, the plurality of second driving plates 662 respectively correspond to the plurality of second moving blocks 652, the two ends of the second driving plates 662 are respectively axially connected to the rotating connecting frame 661 and the second moving block 652, the fourth rotating driver 663 is arranged on one side of the rotating connecting frame 661, and the fourth rotating driver 663 is connected to the rotating connecting frame 661.

[0052] When it is necessary to adjust the intake speed of several intake pipes 62, the fourth rotation driver 663 starts and drives the rotating connecting frame 661 to rotate around the fixed axis 63. As the rotating connecting frame 661 rotates, it simultaneously applies force to the second movable blocks 652 in the multiple guide connection structures 65 through the multiple second driving plates 662. There is a clear corresponding relationship between the rotation angle of the rotating connecting frame 661 and the moving distance of the second movable block 652 along the guide rod 651. The larger the rotation angle of the rotating connecting frame 661, the farther the second movable block 652 is driven to move along the guide rod 651 through the second driving plate 662, thereby ensuring that the intake speeds of the multiple intake pipes 62 can be adjusted synchronously.

[0053] Reference Fig.11 As shown: the air intake structure 3 also includes two lifting assemblies 32, which are respectively arranged on both sides of the installation bin 2, and the lifting assemblies 32 are connected to the annular plate 31. The lifting assemblies 32 include a screw rod 321, a first moving block 322 and a first rotation driver 323. The axis of the screw rod 321 is parallel to the axis of the annular plate 31, and both ends of the screw rod 321 are connected to the installation bin 2. The two ends of the first moving block 322 are respectively connected to the screw rod 321 and the annular plate 31, and the first rotation driver 323 is connected to the screw rod 321.

[0054] When the air inlet pipe 62 is exposed to the air for a long time, there is a risk of external flying insects and other debris entering. As the temperature regulating mechanism 4 operates, these debris may be brought into the greenhouse body 1, causing adverse effects on the environment inside the greenhouse body 1. By setting two lifting components 32, when the temperature regulating mechanism 4 stops working, the first rotation driver 323 starts and drives the screw rod 321 to rotate. As the screw rod 321 rotates, the first moving block 322 moves along the screw rod 321, and drives the annular plate 31 and the flow rate control mechanism 6 connected thereto to move as a whole toward the inside of the installation bin 2, ensuring that the air inlet pipe 62 is completely wrapped inside the installation bin 2, thereby effectively isolating the entry path of external flying insects and other debris.

[0055] A greenhouse control method based on automatic temperature control is applied to a solar greenhouse and comprises the following steps:

[0056] S1, when the temperature in the greenhouse body 1 is too high, the annular plate 31 rises upward to expose the air inlet on the annular plate 31;

[0057] S2, the temperature monitor 7 and the wind speed monitor 8 monitor the temperature and wind speed of the air outside the greenhouse body 1;

[0058] S3, when the wind speed is high, the flow rate control mechanism 6 limits the air flow rate entering the greenhouse body 1;

[0059] S4, when the temperature of the air outside the greenhouse body 1 is low, the temperature regulating mechanism 4 uses the air inside the greenhouse body 1 to heat the incoming low-temperature air, and at the same time the incoming low-temperature air cools down the high-temperature air inside the greenhouse body 1.

[0060] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A solar greenhouse, comprising a greenhouse body and a temperature control device, a temperature monitor, and a wind speed monitor arranged on the top thereof, characterized in that: The temperature control device includes a mounting chamber, an air intake structure and a temperature adjustment mechanism; The installation bin is arranged on the top of the greenhouse body; The air intake structure includes an annular plate, which is arranged inside the installation bin, and has a plurality of air intake ports in an annular array on the annular plate; The temperature regulating mechanism comprises a first air collecting hood, two groups of first air guide pipes, two groups of second air guide pipes and a first driving structure. The first air collecting hood is arranged at the inner bottom of the installation bin. The two groups of first air guide pipes are respectively arranged on both sides of the first air collecting hood. One end of the first air guide pipe is located inside the installation bin. The other end of the first air guide pipe passes through the side wall of the installation bin and extends into the greenhouse body. A plurality of exhaust holes are provided on the first air guide pipe. The two groups of second air guide pipes respectively correspond to the two groups of first air guide pipes. The second air guide pipes are arranged inside the first air guide pipes. The input ends of the second air guide pipes extend out of the first air guide pipes and downwardly pass through the bottom of the installation bin and extend into the greenhouse body. The first driving structure is arranged in the middle of the first air collecting hood. The temperature regulating mechanism further comprises a first opening and closing structure, which comprises a first rectangular frame, two first opening and closing plates and two second driving structures; The first rectangular frame is fixedly arranged at the bottom of the installation bin; The two first opening and closing plates are respectively arranged on two sides of the first rectangular frame, and the first opening and closing plates are slidably connected to the first rectangular frame; The two second driving structures are respectively arranged at two ends of the first rectangular frame, and the second driving structures are connected to the two first opening and closing plates; The temperature regulating mechanism further comprises a second opening and closing structure, which is arranged on one side of the first opening and closing structure, and comprises a second opening and closing plate and a synchronous linkage structure; The second opening and closing plate is arranged on one side of the gas outlet groove of the second gas collecting hood; The synchronous linkage structure is arranged between the second opening and closing plate and the first opening and closing plate; The temperature control device also includes two air outlet control mechanisms, which correspond to the two groups of first air guide pipes respectively, and the air outlet control mechanisms include a storage bin, a partition cloth, a traction structure and a winding structure; The storage bin is arranged on the outer wall of the installation bin; The partition cloth is stored in the storage compartment; The traction structure is arranged at one end of the storage bin, and the traction structure is connected to one end of the partition cloth; The rolling structure is arranged at the other end of the storage bin, and the rolling structure is connected to the other end of the partition cloth; The temperature control device also includes a flow rate control mechanism, which includes a cover plate, a plurality of air inlet pipes, a fixed shaft, a plurality of partition plates and a plurality of guide connection structures; The cover plate is arranged on the upper end of the annular plate; A plurality of air inlet pipes are respectively arranged in a plurality of air inlet ports of the annular plate; The fixed shaft is vertically arranged in the middle of the cover plate; A plurality of partition plates are respectively connected to a plurality of air inlet pipes, one end of the partition plate is inserted into the air inlet pipe, and the other end of the partition plate is connected to the fixed shaft; A plurality of guide connection structures are respectively arranged at the upper ends of a plurality of air inlet pipes.

2. A solar greenhouse according to claim 1, characterized in that: The first driving structure includes a main shaft, a first fan blade, a second fan blade and a second gas collecting hood; The middle part of the main shaft is connected to the bottom of the installation bin through a bearing; The first fan blade is arranged inside the installation bin, and the first fan blade is connected to one end of the main shaft; The second fan blade is arranged at the lower end of the installation bin, and the second fan blade is connected to the other end of the main shaft; The second gas collecting hood is arranged at the lower end of the installation bin, and a gas outlet groove is opened on the side wall of the second gas collecting hood.

3. A solar greenhouse according to claim 1, characterized in that: The synchronous linkage structure includes a second rectangular frame, a connecting rod and a first spring; The second rectangular frame is installed on the air outlet slot; The connecting rod is slidably connected to the second rectangular frame, one end of the connecting rod is connected to the first opening and closing plate, and the second opening and closing plate is slidably arranged on the connecting rod; The first spring is sleeved on the connecting rod, and two ends of the first spring are respectively connected to the end of the connecting rod and the second opening and closing plate.

4. A solar greenhouse according to claim 1, characterized in that: The flow rate control mechanism also includes a third driving structure, which is arranged at a central position of the plurality of air inlet pipes and is connected to the plurality of air inlet pipes.

5. A solar greenhouse according to claim 1, characterized in that: The air intake structure also includes two lifting assemblies, which are respectively arranged on both sides of the installation bin, and the lifting assemblies are connected to the annular plate.

6. A greenhouse control method based on automatic temperature control, applied to a solar greenhouse as claimed in any one of claims 1 to 5, characterized in that: The following steps are involved: S1, when the temperature inside the greenhouse body is too high, the annular plate rises upward, exposing the air inlet on the annular plate; S2, temperature monitor and wind speed monitor monitor the temperature and wind speed of the air outside the greenhouse body; S3, when the wind speed is fast, the flow rate control mechanism limits the air flow rate entering the greenhouse body; S4, when the temperature of the air outside the greenhouse body is low, the temperature regulating mechanism uses the air inside the greenhouse body to heat up the incoming low-temperature air, and at the same time the incoming low-temperature air cools down the high-temperature air inside the greenhouse body.

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