Crop rotation cultivation device and method

Abstract

The invention belongs to the technical field of crop rotation cultivation devices, and discloses a crop rotation cultivation device and method. The crop rotation cultivation device comprises a greenhouse body, and a first thin film and a second thin film are arranged on the top of the greenhouse body and the two sides of the greenhouse body through installation frames respectively. The ventilation opening is formed in the second thin film and used for ventilating the interior of the greenhouse body; and the third thin film is arranged on the outer side of the second thin film, and a film rolling assembly is arranged on the third thin film and used for rolling the third thin film. And through movement of the telescopic adjusting plate, the third film can be flattened when the third film is rolled up and then put down, the third film is made to be tightly pressed and attached to the ventilation opening, the sealing performance in the greenhouse body can be maintained, and growth of sweet potatoes is better facilitated.

Description

Technical Field

[0001] The present invention belongs to the technical field of crop rotation cultivation devices, and particularly relates to a crop rotation cultivation device and method. Background Art

[0002] With the development of society, people's material needs have gradually increased. In particular, off-season fruits and melons are highly sought after. Sweet potatoes and fruit corns have also joined this category. After continuous improvement, their quality and taste have become better and better, gradually transforming from a food crop into a kind of leisure snack. Crop rotation is an agricultural management technique. According to local conditions and planting purposes, sweet potato varieties that are disease-resistant, high-quality, high-yield, have good commercial properties, and are suitable for double-film planting in the northern region are selected. Through the alternate planting of sweet potatoes and fruit corns, it is advisable to choose loamy or sandy soil with deep, loose, high organic matter content, good air permeability, and good drainage. The land resources and growing seasons are fully utilized. The soil is plowed through different root systems, and then fertilizers are applied manually and disinfected.

[0003] In the prior art, the film is pressed and adhered to the greenhouse through a film pressing rope. In strong wind weather, the length of the film pressing rope cannot be adjusted, and the effect on the film cannot be improved. When the film rolling device rolls up the plastic film for ventilation, the rolled-up plastic film is prone to wrinkles, resulting in poor sealing of the ventilation opening, thereby affecting the cultivation effect of greenhouse crops. Summary of the Invention

[0004] The present invention proposes the following technical solutions for the problems in the prior art:

[0005] A crop rotation cultivation device, comprising:

[0006] A greenhouse body, provided with a first film and a second film, which are respectively installed on the top of the greenhouse body and on both sides of the greenhouse body through mounting frames;

[0007] A ventilation opening, opened on the second film, for ventilating the inside of the greenhouse body;

[0008] A third film, arranged outside the second film, and a film rolling assembly is arranged on the third film for rolling up the third film;

[0009] An adjusting and sealing assembly, arranged outside the first film and the third film, and the adjusting and sealing structure includes:

[0010] A connecting plate, connected to the top of the first film;

[0011] A film pressing belt, connected to both sides of the connecting plate, and an adjusting and supporting assembly is arranged at one end of the film pressing belt;

[0012] A sealing assembly, arranged outside the third film.

[0013] As a preference of the above technical solution, the adjusting and supporting assembly includes:

[0014] A rotating rod, connected to one end of the film pressing belt;

[0015] A first driving member, connected to the rotating rod and used to drive the rotating rod to rotate;

[0016] A support frame, connected to the rotating rod and the first driving member and used to install the rotating rod and the first driving member.

[0017] As a preference of the above technical solution, the winding device includes:

[0018] Two fixed rods, respectively arranged on the front and rear sides of the greenhouse body;

[0019] A climber, slidably arranged on the fixed rod on the front side of the greenhouse body, and an electric film winder is arranged on one side of the climber;

[0020] A winding shaft, one end of the winding shaft is connected to the electric film winder, and the other end is connected to the fixed rod on the rear side of the greenhouse body through a sliding sleeve, and the third film is connected to the winding shaft and the electric film winder.

[0021] As a preference of the above technical solution, the sealing assembly includes:

[0022] A fixing plate, connected to the mounting frame;

[0023] A second driving member, connected to the support frame;

[0024] A movable shaft, connected between the second driving member and the fixing plate;

[0025] A movable plate, threadedly connected to the movable shaft, and the movable plate is movably connected to the support frame through a limiting plate;

[0026] A pushing plate, hingedly arranged on the movable plate, and a moving assembly is arranged at one end of the pushing plate.

[0027] As a preference of the above technical solution, the moving assembly includes:

[0028] A moving block, slidably connected to one side of the fixing plate, and one side of the moving block is hinged to the pushing plate;

[0029] A telescopic adjusting plate, connected to the top of the moving block through a first connecting block;

[0030] An arc-shaped adjusting plate, connected to the bottom of the moving block through a second connecting block.

[0031] As a preference of the above technical solution, the telescopic adjusting plate is located above the winding shaft, and the telescopic adjusting plate is made of a transparent material. The telescopic adjusting plate and the arc-shaped adjusting plate are respectively located at both ends of the first film and the third film, and the telescopic adjusting plate and the arc-shaped adjusting plate are symmetrically arranged with the centers of the first film and the third film respectively.

[0032] Preferably, as the above technical solution, a limiting member is provided on one side of the support frame close to the third film. The limiting member is located at the bottom of the rotating rod. The limiting member includes:

[0033] A chute is opened on one side of the support frame close to the third film;

[0034] A telescopic rod is provided on one side of the support frame;

[0035] A slider is connected to the telescopic rod, and the slider is slidably connected in the chute;

[0036] A limiting block is connected to one end of the telescopic rod, and the limiting block is clamped with the third film on the winding shaft.

[0037] Preferably, as the above technical solution, a protective block is provided on one side of the bottom end of the support frame. The protective block is connected to both sides of the bottom end of the mounting frame. A moving opening is opened at the top of the protective block. The bottom end of the support frame is movably connected to the protective block through the movable opening;

[0038] A support assembly is provided inside the protective block. The support assembly includes:

[0039] A moving plate is connected to one side of the support frame;

[0040] A compression spring is provided between the bottom end of the mounting frame and the moving plate;

[0041] Support plates are hinged to both ends of the moving plate. The support plates are hinged with movable blocks, and the movable blocks are movably connected to one side of the bottom end of the mounting frame.

[0042] The present invention also provides a method for using the above crop rotation cultivation device, including the following steps:

[0043] Step 1: Directly purchase test tube basic seedlings or plug seedlings from a cultivation company. Select virus-free strong seedlings from a virus-free sweet potato nursery or seedbed. High-quality virus-free sweet potato seedlings should have straight stems, bright green and shiny colors. The leaves are complete, with regular leaf shapes, moderate sizes, and no signs of pests and diseases. Plant them from mid-March to early April when the daily minimum temperature is not lower than 10°C. First, sterilize and disinfect in a warm shed and then ridging. Make 80 ridges, with two ridges as a group. The ridge spacing for spring sweet potatoes is 75 cm - 90 cm, and for summer sweet potatoes is 60 cm - 80 cm. The ridge height is 25 cm - 35 cm. Leave a 40 cm-wide space between each group for inserting shed bars and covering with a film as a reservation. Lay drip irrigation and cover with a white film on the ridge surface. Plant in a single-row head-to-head planting method with a plant spacing of 15 cm. Plant about 5000 plants per 667 m2. Insert shed bars and cover with a second film on the same day after planting. After 3 - 5 days of planting, the seedlings are basically successfully acclimated. Small holes can be made for ventilation, and the ventilation can be adjusted according to the weather conditions and growth period to keep the temperature in the shed not exceeding 40°C;

[0044] Step 2: In mid-April, due to the vigorous growth of sweet potato seedlings, the second film was removed for ventilation at a height of 40 cm to 50 cm. After 3 days of outdoor hardening, the seedlings were cut and sold. The cutting length was 25 cm, and 100 seedlings were bundled. From mid-May to the end of May, the seedlings were cut 4 times, and the average number of seedlings per 667 m2 was 20,000.

[0045] Step 3: After entering the stage of rapid tuber expansion, 40 kg to 50 kg of 0.2% potassium dihydrogen phosphate solution was sprayed per 667 m2 in the evening. The fixed root water was poured 25 days to 30 days after planting. Each time water was poured, trace elements and water-soluble fertilizers were sprayed. 2 kg to 3 kg of fruit-expanding fertilizer was sprayed through the drip irrigation belt at 40 days, and it was sprayed again at 90 days. In the plots with a vigorous growth trend, growth regulators such as mepiquat chloride were used, diluted with water and sprayed when the ridges were half to three-quarters sealed. According to the growth situation, it was sprayed 2 to 3 times at intervals of 5 days to 7 days, and then the pests and diseases were controlled. The pest medicine was sprayed through the drip irrigation belt at 30 days to 40 days, and the medicine was dripped again at 90 days to 100 days.

[0046] Step 4: When ventilation is required during the vigorous growth period and the tuber expansion period, the rolling film assembly is started to drive the third film and the limiting block to move upward, so that the telescopic adjusting plate contracts, exposing the ventilation opening, and the greenhouse body is ventilated. After the ventilation is completed, the third film and the limiting block are driven downward by the rolling film assembly to block and seal the ventilation opening. At the same time, the second driving member drives the movable shaft to rotate. Under the action of the movable plate, the pushing plate and the moving block, the arc-shaped adjusting plate and the telescopic adjusting plate move along the outer sides of the first film and the third film respectively, smoothing the wrinkles on the first film and the third film, so that the greenhouse body and the ventilation opening are kept sealed. Then, the length of the film pressing belt is adjusted by the first driving member, so that the film pressing belt presses the first film tightly. When ventilation is carried out and the wind force is too strong, the support frame moves towards the greenhouse body. Under the action of the moving plate, the compression spring, the support plate and the movable block, the support frame can be supported and limited.

[0047] Step 5: The sweet potatoes are harvested and stored in mid-July. After the sweet potatoes are harvested from mid-July to the end of July, fruit corn is rotated.

[0048] The beneficial effects of the present invention are as follows:

[0049] Through the movement of the telescopic adjusting plate, when the third film is put down after being wound up, the third film can be smoothed, and the third film is pressed tightly against the ventilation opening, improving the sealing performance of the ventilation opening. At the same time, the first film is smoothed by the movement of the arc-shaped adjusting plate, and then the length of the film pressing belt is adjusted, so that the film pressing belt can fit and press the first film tightly, improving the fixing effect, preventing the film pressing belt from moving when adjusting its length and causing damage to the wrinkled part of the first film, affecting the use, and thus contributing to maintaining the sealing performance inside the greenhouse body, making the environmental conditions such as temperature and humidity in the greenhouse body relatively stable, and being more conducive to the growth of sweet potatoes. Description of the Drawings

[0050] Figure 1 Shown is a schematic diagram of the overall structure of the embodiment;

[0051] Figure 2 Shown is Figure 2 an enlarged view of location A of

[0052] Figure 3 Shown is a side view of the overall structure of the embodiment;

[0053] Figure 4 Shown is a structural diagram of the greenhouse body and the adjustment and sealing assembly of the embodiment;

[0054] Figure 5 Shown is a structural diagram of the greenhouse body and the ventilation opening of the embodiment;

[0055] Figure 6 Shown is a structural diagram of the adjustment support assembly, the moving assembly, the sealing assembly and the limiting member of the embodiment;

[0056] Figure 7 Shown is a sectional view of the support frame and the limiting member of the embodiment;

[0057] Figure 8 Shown is Figure 7 an enlarged view of location B of

[0058] In the figure: 1. Greenhouse body; 2. First film; 3. Second film; 4. Mounting frame; 5. Ventilation opening; 6. Third film; 7. Connecting plate; 8. Film pressing belt; 9. Rotating rod; 10. First driving member; 11. Support frame; 12. Fixed rod; 13. Climbing device; 14. Electric film rolling device; 15. Winding shaft; 16. Fixed plate; 17. Second driving member; 18. Movable shaft; 19. Movable plate; 20. Pushing plate; 21. Moving block; 22. Telescopic adjusting plate; 23. First connecting block; 24. Arc-shaped adjusting plate; 25. Second connecting block; 26. Telescopic rod; 27. Slide block; 28. Limiting block; 29. Protective block; 30. Moving plate; 31. Compression spring; 32. Support plate; 33. Movable block. Detailed implementation manners

[0059] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0060] The present invention provides a crop rotation cultivation device and method, as Figures 1 to 5As shown in the figure, it includes a greenhouse body 1, a first film 2, a second film 3, a mounting rack 4, a ventilation opening 5, a third film 6, a film rolling assembly and an adjusting and sealing assembly. A mounting rack 4 is provided on the greenhouse body 1. The first film 2 and the second film 3 are respectively installed on the top of the greenhouse body 1 and on both sides of the greenhouse body 1 through the mounting rack 4, so that the greenhouse body 1 is kept sealed, which is convenient for cultivating sweet potatoes. The ventilation opening 5 is opened on the second film 3 and is used for ventilating the interior of the greenhouse body 1, adjusting the temperature and humidity, and promoting air circulation. The third film 6 is fixedly installed on the mounting rack 4. The third film 6 is arranged outside the second film 3. A film rolling assembly is arranged on the third film 6. The film rolling assembly is located on both sides of the greenhouse body 1 and is used for rolling up the third film 6 to expose the ventilation opening 5 for ventilation. In order to fix the first film 2 and the second film 3 in strong wind weather, increase the fixing effect, and improve the sealing performance of the greenhouse body 1 and the ventilation opening 5, the adjusting and sealing assembly is arranged outside the first film 2 and the third film 6. The adjusting and sealing structure includes a connecting plate 7, a film pressing belt 8, a supporting assembly and a sealing assembly. The connecting plate 7 is fixedly connected to the top of the first film 2. Both ends of the connecting plate 7 are fixedly installed with the top of the mounting rack 4. The film pressing belt 8 is fixedly connected to both sides of the connecting plate 7. An adjusting and supporting assembly is arranged at one end of the film pressing belt 8. The film pressing belt 8 and the adjusting and supporting assembly are linearly arrayed outside the greenhouse body 1, which is convenient for adjusting the length of the film pressing belt 8 and firmly fixing the first film 2 on the mounting rack 4. The sealing assembly is located on both sides of the mounting rack 4 and is arranged outside the third film 6 to seal the third film 6 at the ventilation opening 5 and improve the sealing effect.

[0061] The film rolling device includes two fixed rods 12, a climbing device 13, a film winding shaft 15 and an electric film rolling device 14. The two fixed rods 12 are respectively arranged on the front and rear sides of the greenhouse body 1. The climbing device 13 is slidably arranged on the fixed rod 12 on the front side of the greenhouse body 1. An electric film rolling device 14 is installed on one side of the climbing device 13. A sliding sleeve is slidably connected to the fixed rod 12 on the rear side of the greenhouse body 1. One end of the sliding sleeve is rotatably connected to one end of the film winding shaft 15. One end of the film winding shaft 15 is connected to the electric film rolling device 14, and the other end is connected to the fixed rod 12 on the rear side of the greenhouse body 1 through the sliding sleeve. The third film 6 is fixedly connected to the film winding shaft 15. The third film 6 is connected through the film winding shaft 15 and the electric film rolling device 14.

[0062] When encountering strong wind weather, the first film 2 bears a large wind force, and the adjusting support assembly is activated to adjust the length of the film pressing belt 8, so that the film pressing belt 8 fixes the first film 2 more tightly, increasing its tension and enhancing the fixing effect. In weather with relatively small wind force, the length of the film pressing belt 8 is appropriately adjusted to make it relatively loose. When the greenhouse body 1 needs to be ventilated, the electric rolling film device 14 is activated, causing the electric rolling film device 14 to drive the winding shaft 15 to rotate and roll up. Due to the pulling force of the third film 6 on the winding shaft 15, the climber 13 will drive the electric rolling film device 14, the winding shaft 15 and the sliding sleeve to move upward along the two fixed rods 12, thereby exposing the ventilation opening 5 and ventilating the interior of the greenhouse body 1 to adjust the temperature and humidity. When it is necessary to close the ventilation opening 5, the electric rolling film device 14 drives the winding shaft 15 to rotate. Under the gravity of the third film 6, the climber 13 and the sliding sleeve move downward along the two fixed rods 12 respectively to block the ventilation opening 5, and the first film 2 and the second film 3 are adjusted through the moving sealing structure to keep the first film 2 and the second film 3 flat, preventing damage to the wrinkles of the first film 2 when the film pressing belt 8 moves during the adjustment of the length of the film pressing belt 8, which affects the use. At the same time, it can also keep the ventilation opening 5 sealed, facilitating the cultivation of sweet potatoes in the greenhouse body 1.

[0063] As Figures 5 to 7 shown, in order to be able to adjust the length of the film pressing belt 8 according to different weather conditions and avoid unnecessary friction and damage to the first film 2 caused by the film pressing belt 8 being too tight or too loose, the adjusting support assembly includes a rotating rod 9, a first driving member 10 and a support frame 11. The rotating rod 9 is fixedly connected to one end of the film pressing belt 8 away from the connecting plate 7. The first driving member 10 is fixedly connected to one end of the rotating rod 9 for driving the rotating rod 9 to rotate. The support frame 11 is connected to the rotating rod 9 and the first driving member 10 for installing the rotating rod 9 and the first driving member 10. A groove is provided at the top of the support frame 11, and the rotating rod 9 is rotatably connected to the inner wall of the groove. The first driving member 10 is fixedly installed on one side of the support frame 11 to improve the stability of the adjustment of the film pressing belt 8.

[0064] In this embodiment, the first driving member 10 can be a motor. By starting the first driving member 10 to drive the rotating rod 9 to rotate, the film pressing belt 8 is wound and relaxed, thereby adjusting the length of the film pressing belt 8, enabling the first film 2 to better cooperate with the telescopic change of the film pressing belt 8, extending the service life of the first film 2, reducing the cost input caused by frequent replacement of the first film 2, and further helping to maintain the airtightness inside the greenhouse body 1, making the environmental conditions such as temperature and humidity in the greenhouse body 1 relatively stable, which is more conducive to the growth of sweet potatoes.

[0065] As Figures 5 to 7As shown, in order to make the third film 6 flat after the greenhouse body 1 is ventilated and the ventilation opening 5 sealed after the third film 6 is lowered, the sealing assembly includes a fixing plate 16, a second driving member 17, a movable shaft 18, a movable plate 19, a limiting plate, a pushing plate 20 and a moving assembly. The fixing plate 16 is fixedly connected to both sides of the mounting frame 4. The fixing plate 16 is located between the first film 2 and the third film 6. A fixing groove is formed on the side of the support frame 11 close to the third film 6. The second driving member 17 is fixedly connected in the fixing groove on the support frame 11. The movable shaft 18 is connected between the second driving member 17 and the fixing plate 16. One end of the movable shaft 18 is fixedly connected to the second driving member 17, and the other end is rotatably connected to the fixing plate 16. The movable plate 19 is threadedly connected to the movable shaft 18. A limiting plate is fixedly connected to one side of the movable plate 19. The limiting plate facilitates the back-and-forth movement of the movable plate 19 along the movable shaft 18. The limiting plate is movably connected to one side of the support frame 11. Pushing plates 20 are hinged to the movable plate 19. A moving assembly is provided at one end of the pushing plate 20. The fixing plate 16 improves the stability when the movable shaft 18 drives the movable plate 19 to rotate. In order to prevent the first film 2 from wrinkling during the adjustment of the film pressing belt 8 and the third film 6 from wrinkling after being wound up, which may affect the sealing effect of the greenhouse body 1, the moving assembly includes a moving block 21, a telescopic adjusting plate 22, a first connecting block 23, an arc-shaped adjusting plate 24 and a second connecting block 25. The moving block 21 is slidably connected to one side of the fixing plate 16. One side of the moving block 21 is hinged to the pushing plate 20. The top of the telescopic adjusting plate 22 is fixedly connected to the first connecting block 23. The telescopic adjusting plate 22 is connected to the top of the moving block 21 through the first connecting block 23. The bottom of the arc-shaped adjusting plate 24 is fixedly connected to the second connecting block 25. The arc-shaped adjusting plate 24 is connected to the bottom of the moving block 21 through the second connecting block 25. The telescopic adjusting plate 22 is located above the winding shaft 15, and the telescopic adjusting plate 22 is made of a transparent material to facilitate improving the light irradiation effect on the sweet potatoes in the greenhouse body 1. The telescopic adjusting plate 22 and the arc-shaped adjusting plate 24 are respectively located outside the first film 2 and the third film 6 to facilitate moving and adjusting while fitting the first film 2 and the third film 6.

[0066] At both ends of the movable plates 19 on both sides of the greenhouse body 1, push plates 20 are hinged. On the left side of multiple movable plates 19 in the middle of the greenhouse body 1, push plates 20 are hinged. When the third film 6 is lowered and the length of the film pressing belt 8 needs to be adjusted again, the second driving member 17 in the fixed groove of the support frames 11 on both sides of the greenhouse body 1 is started. The second driving member 17 can be a motor. The second driving member 17 drives the movable shaft 18 to rotate along both ends of the fixed rod 12. Through the action of the limiting plate, the movable plate 19 moves along the movable shaft 18, and drives the push plates 20 on both sides of the movable shaft 18 to deflect, so that the moving block 21 moves along the fixed plate 16. Through the action of the first connecting block 23 and the second connecting block 25, the arc-shaped adjusting plate 24 and the telescopic adjusting plate 22 move along the outer walls of the first film 2 and the third film 6 respectively, so that both ends of the first film 2 and the second film 3 are smoothed. At the same time, the second driving member 17 in the fixed groove of multiple support frames 11 in the middle is started, so that the movable shaft 18 rotates, and drives the push plate 20 on the left side of the movable plate 19 to rotate through the action of the limiting plate, and pushes the moving block 21 on the left side to move. Furthermore, under the action of the first connecting block 23 and the second connecting block 25, the arc-shaped adjusting plate 24 and the telescopic adjusting plate 22 move along the middle outer walls of the first film 2 and the third film 6 respectively, so that the middle parts of the first film 2 and the second film 3 are smoothed. Then, the first driving member 10 drives the rotating rod 9 and the film pressing belt 8 to rotate, and adjusts the length so that when the film pressing belt 8 fixes the first film 2, no wrinkles will be generated, which will affect the use of the first film 2.

[0067] As Figures 6 to 8 shown, in order to support and limit the support frame 11 in strong wind weather, improve the stability and service life of the support frame 11, and improve the sealing performance of the third film 6 at the ventilation opening 5, so that a suitable temperature and humidity are maintained in the greenhouse body 1, and the effect of sweet potato cultivation in the greenhouse body 1 is improved. A limiting member is provided on the side of the support frame 11 close to the third film 6. The limiting member is located at the bottom of the rotating rod 9. The limiting member includes a telescopic rod 26, a slider 27 and a limiting block 28. A chute is opened on the side of the support frame 11 close to the third film 6. The telescopic rod 26 is arranged on one side of the support frame 11. The slider 27 is fixedly connected to the telescopic rod 26. The slider 27 is slidably connected in the chute. The limiting block 28 is fixedly connected to the end of the telescopic rod 26 away from the slider 27. The limiting block 28 is clamped with the third film 6 on the winding shaft 15.

[0068] One side of the bottom end of the support frame 11 is provided with a protective block 29. One side of the protective block 29 is fixedly connected to both sides of the bottom end of the mounting frame 4. A moving port is opened at the top of the protective block 29. The bottom end of the support frame 11 is movably connected to the protective block 29 through the moving port. A support assembly is arranged inside the protective block 29 to facilitate the protection of the support assembly. The support assembly includes a moving plate 30, a compression spring 31, a support plate 32 and a movable block 33. The moving plate 30 is fixedly connected to one side of the support frame 11. The top of the moving plate 30 is slidably connected to the inner wall of the top of the protective block 29. The compression spring 31 is arranged between the bottom end of the mounting frame 4 and the moving plate 30. One end of the compression spring 31 is fixedly installed on one side of the bottom end of the mounting frame 4, and the other end is fixedly installed on the middle of one side of the moving plate 30. The support plate 32 is hinged to both ends of the moving plate 30. One end of the support plate 32 is hinged with a movable block 33. The movable block 33 is movably connected to one side of the bottom end of the mounting frame 4. The movable block 33 is located on both sides of the compression spring 31.

[0069] An arc-shaped groove is opened on the side of the limiting block 28 away from the telescopic rod 26 to fit the third film 6 on the limiting winding shaft 15. The limiting block 28 includes two clamping blocks and a mounting block. Moving grooves are opened on both the upper and lower sides of the mounting block. One end of the clamping block is slidably connected to the inner wall of the moving groove. One side of the mounting block is fixedly installed on the telescopic rod 26. The arc-shaped groove of the limiting block 28 is clamped with the third film 6 on the winding shaft 15. When the third film 6 is wound and unwound, it drives the slider 27 and the telescopic rod 26 to move, so that the slider 27 on one side of the telescopic rod 26 moves up and down along the inner wall of the chute. The telescopic rod 26 drives the mounting block to move. When the winding shaft 15 winds and the thickness of the third film 6 increases, it presses the inner wall of the arc-shaped groove, so that the clamping block moves along the moving groove to the upper and lower sides of the mounting block. It is adjusted according to the thickness of the third film 6, so that the arc-shaped groove can always fit the third winding film on the limiting winding shaft 15. Then, when ventilating, when the wind force is too large, the support frame 11 moves towards the greenhouse body 1, the telescopic rod 26 contracts, buffers the force received by the support frame 11, and also limits the position of the third film 6 through the limiting block 28. At the same time, the bottom end of the support frame 11 drives the moving plate 30 to move along the inner wall of the top of the protective block 29, so that the compression spring 31 is compressed, and the support plate 32 is pushed to deflect, so that the movable blocks 33 move away from each other along one side of the bottom end of the mounting frame 4, buffer the force received by the support frame 11, improve the stability of the support frame 11, and facilitate use.

[0070] The present invention also provides a method for using the above crop rotation cultivation device, including the following steps:

[0071] Step 1: Directly purchase test-tube basic seedlings or plug seedlings from the breeding company, and select virus-free strong seedlings from virus-free sweet potato nurseries or seedbeds. High-quality virus-free sweet potato seedlings should have straight stems, bright green and shiny colors. The leaves are complete, with regular leaf shapes, moderate sizes, and no signs of pests or diseases. Plant them from mid-March to early April when the daily minimum temperature is not lower than 10°C. First, sterilize the greenhouse and then ridging. Make 80 ridges, with two ridges as a group. The ridge spacing for spring sweet potatoes is 75 cm - 90 cm, and for summer sweet potatoes is 60 cm - 80 cm. The ridge height is 25 cm - 35 cm. Leave a 40-cm-wide space between each group for inserting shed bars and covering with film as a reservation. Lay drip irrigation and cover with white film on the ridge surface. Plant in a single-row head-to-head manner with a plant spacing of 15 cm. Plant about 5,000 plants per 667 m². On the day of planting, insert shed bars and cover with a second layer of film. After 3 - 5 days of planting, the seedlings are basically established, and small holes can be made for ventilation. Adjust the ventilation according to the weather conditions and growth period to keep the temperature in the greenhouse not exceeding 40°C;

[0072] Step 2: In mid-April, due to the vigorous growth of sweet potato seedlings, remove the second layer of film for ventilation at 40 cm - 50 cm. After 3 days of open-air hardening-off, cut the seedlings for sale. The cutting length is 25 cm, and bundle 100 seedlings together. Cut the seedlings 4 times from mid-May to the end of May, with an average of 20,000 seedlings emerging per 667 m²;

[0073] Step 3: After entering the rapid tuber expansion period, spray 40 kg - 50 kg of 0.2% potassium dihydrogen phosphate solution per 667 m² in the evening. Water the fixed-root water 25 - 30 days after planting. Each time of watering, spray trace elements and water-soluble fertilizers. Spray 2 kg - 3 kg of fruit-expanding fertilizer through the drip irrigation belt at 40 days, and spray again at 90 days. In the plots with a strong growth trend, use growth regulators such as mepiquat chloride, dilute with water and spray when the ridges are half to three-quarters covered. Spray 2 - 3 times at intervals of 5 - 7 days according to the growth situation, and then control pests and diseases. Spray pest control agents through the drip irrigation belt at 30 - 40 days, and drip another dose of medicine at 90 - 100 days;

[0074] Step 4: When ventilation is required during the vigorous growth period and the tuber swelling period, start the rolling film assembly to drive the third film 6 and the limiting block 28 to move upward, causing the telescopic adjusting plate 22 to contract, exposing the ventilation opening 5, and ventilating the greenhouse body 1. After the ventilation is completed, use the rolling film assembly to move the third film 6 and the limiting block 28 downward to block and seal the ventilation opening 5. At the same time, drive the movable shaft 18 to rotate through the second driving member 17. Under the action of the movable plate 19, the pushing plate 20 and the moving block 21, the arc-shaped adjusting plate 24 and the telescopic adjusting plate 22 move along the outer sides of the first film 2 and the third film 6 respectively, smoothing the wrinkles on the first film 2 and the third film 6, so that the greenhouse body 1 and the ventilation opening 5 are kept sealed. Then, adjust the length of the film pressing belt 8 through the first driving member 10, so that the film pressing belt 8 presses the first film 2 tightly. When ventilating, when the wind force is too strong, the support frame 11 moves towards the greenhouse body 1. Under the action of the moving plate 30, the compression spring 31, the support plate 32 and the movable block 33, the support frame 11 can be supported and limited;

[0075] Step 5: Harvest and store sweet potatoes in mid-July. After harvesting sweet potatoes from mid-July to the end of July, rotate and plant sweet corn.

[0076] Working principle: When the greenhouse body 1 needs ventilation, start the electric rolling film device 14, so that the electric rolling film device 14 drives the winding shaft 15 to rotate and wind up. Through the pulling force of the third film 6 on the winding shaft 15, the climber 13 will drive the electric rolling film device 14, the winding shaft 15 and the sliding sleeve to move upward along the two fixed rods 12, thereby exposing the ventilation opening 5 and ventilating and adjusting the temperature and humidity inside the greenhouse body 1. When the third film 6 is wound up and drives the mounting block and the clamping block to move upward, causing the telescopic rod 26 to drive the slider 27 to move upward along the chute, when the winding shaft 15 winds up the third film 6 and the thickness of the third film 6 increases, squeezing the inner wall of the arc-shaped groove, the clamping block moves along the moving groove to the upper and lower sides of the mounting block, so that the arc-shaped groove can always fit and limit the third winding film on the winding shaft 15. When the winding shaft 15 moves above the ventilation opening 5 and the third film 6 is completely wound up and the ventilation opening 5 is exposed, at this time the clamping block completely moves out of the moving groove and limits the position of the third film 6.

[0077] After ventilation is completed, the electric rolling film device 14 drives the winding shaft 15 to rotate. Under the gravity of the third film 6, the climber 13 and the sliding sleeve move downward along the two fixed rods 12 respectively to block the ventilation opening 5. At the same time, the clamping block and the mounting block move downward with the lowering of the third film 6, and the clamping block moves into the moving groove. At the same time, the telescopic rod 26 drives the slider 27 to move downward along the sliding groove. When the third film 6 blocks the ventilation opening 5, the clamping block and the mounting block move to their original positions to limit the lowered third film 6. Then, the second driving member 17 in the fixed groove of the support frame 11 on both sides of the greenhouse body 1 is started. The second driving member 17 drives the movable shaft 18 to rotate along both ends of the fixed rod 12. Through the action of the limiting plate, the movable plate 19 moves along the movable shaft 18 and drives the push plates 20 on both sides of the movable shaft 18 to deflect, so that the moving block 21 moves along the fixed plate 16. Through the action of the first connecting block 23 and the second connecting block 25, the arc-shaped adjusting plate 24 and the telescopic adjusting plate 22 move along the outer walls of the first film 2 and the third film 6 respectively, so that both ends of the first film 2 and the second film 3 are smoothed. At the same time, the second driving member 17 in the fixed groove of the multiple support frames 11 in the middle is started to rotate the movable shaft 18, and through the action of the limiting plate, the push plate 20 on the left side of the movable plate 19 is driven to rotate, pushing the left moving block 21 to move. Then, under the action of the first connecting block 23 and the second connecting block 25, the arc-shaped adjusting plate 24 and the telescopic adjusting plate 22 move along the outer walls of the middle parts of the first film 2 and the third film 6 respectively, so that the middle parts of the first film 2 and the second film 3 are smoothed, and the third film 6 at the ventilation opening 5 is kept sealed. Then, the first driving member 10 drives the rotating rod 9 and the pressing film belt 8 to rotate to adjust the length, so that the pressing film belt 8 fixes the first film 2 without generating wrinkles.

[0078] When ventilation is in progress and the wind force is too strong, the support frame 11 moves towards the greenhouse body 1. The telescopic rod 26 contracts to buffer the force received by the support frame 11. The position of the third film 6 is limited by the limiting block 28. At the same time, the bottom end of the support frame 11 drives the moving plate 30 to move along the inner wall of the top of the protective block 29, so that the compression spring 31 is compressed, and the support plate 32 is pushed to deflect, so that the movable blocks 33 move away from each other along one side of the bottom end of the mounting frame 4 to buffer the force received by the support frame 11 and improve the stability of the support frame 11.

[0079] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. A crop rotation cultivation device, characterized in that: Comprising: A greenhouse body, provided with a first film and a second film, which are respectively installed on the top of the greenhouse body and both sides of the greenhouse body through mounting frames; A ventilation opening, opened on the second film, for ventilating the interior of the greenhouse body; A third film, arranged on the outer side of the second film, and a film rolling assembly is arranged on the third film for rolling up the third film; An adjusting and sealing assembly, arranged on the outer sides of the first film and the third film, and the adjusting and sealing structure includes: A connecting plate, connected to the top of the first film; A film pressing belt, connected to both sides of the connecting plate, and an adjusting and supporting assembly is arranged at one end of the film pressing belt; A sealing assembly, arranged on the outer side of the third film.

2. The crop rotation cultivation device according to claim 1, characterized in that, The adjusting and supporting assembly includes: A rotating rod, connected to one end of the film pressing belt; A first driving member, connected to the rotating rod for driving the rotating rod to rotate; A support frame, connected to the rotating rod and the first driving member for installing the rotating rod and the first driving member.

3. The crop rotation cultivation device according to claim 2, characterized in that, The winding device includes: Two fixed rods, respectively arranged on the front and rear sides of the greenhouse body; A climber, slidably arranged on the fixed rod on the front side of the greenhouse body, and an electric film winder is arranged on one side of the climber; A winding shaft, one end of the winding shaft is connected to the electric film winder, and the other end is connected to the fixed rod on the rear side of the greenhouse body through a sliding sleeve, and the third film is connected to the electric film winder through the winding shaft.

4. The crop rotation cultivation device according to claim 3, characterized in that, The sealing assembly includes: A fixing plate, connected to the mounting frame; A second driving member, connected to the support frame; A movable shaft, connected between the second driving member and the fixing plate; A movable plate, threadedly connected to the movable shaft, and the movable plate is movably connected to the support frame through a limiting plate; A pushing plate, hinged on the movable plate, and a moving assembly is arranged at one end of the pushing plate.

5. The crop rotation cultivation device according to claim 4, characterized in that: The moving assembly includes: A moving block, slidably connected to one side of the fixing plate, and one side of the moving block is hinged to the pushing plate; A telescopic adjusting plate, connected to the top of the moving block through a first connecting block; An arc-shaped adjusting plate, connected to the bottom of the moving block through a second connecting block.

6. The crop rotation cultivation device according to claim 5, characterized in that: The telescopic adjusting plate is located above the winding shaft, and the telescopic adjusting plate is made of a transparent material. The telescopic adjusting plate and the arc-shaped adjusting plate are respectively located at both ends of the first film and the third film, and the telescopic adjusting plate and the arc-shaped adjusting plate are symmetrically arranged with the centers of the first film and the third film respectively.

7. The crop rotation cultivation device according to claim 6, characterized in that: A limiting member is arranged on one side of the support frame close to the third film, and the limiting member is located at the bottom of the rotating rod. The limiting member includes: A chute, opened on one side of the support frame close to the third film; A telescopic rod, arranged on one side of the support frame; A slider, connected to the telescopic rod, and the slider is slidably connected in the chute; A limiting block, connected to one end of the telescopic rod, and the limiting block is clamped with the third film on the winding shaft.

8. The crop rotation cultivation device according to claim 7, characterized in that: A protective block is arranged on one side at the bottom end of the support frame, and the protective block is connected to both sides at the bottom end of the mounting frame. A moving opening is opened at the top of the protective block, and the bottom end of the support frame is movably connected to the protective block through the moving opening; a support assembly is arranged inside the protective block, and the support assembly includes: A moving plate, connected to one side of the support frame; A compression spring, arranged between the bottom end of the mounting frame and the moving plate; Support plates, hinged to both ends of the moving plate, and the support plates are hinged with movable blocks, and the movable blocks are movably connected to one side at the bottom end of the mounting frame.

9. A method of using the crop rotation cultivation device as described in claim 8, characterized in that, Including the following steps: Step 1: Provide test tube basic seedlings or plug tray seedlings, and select virus-free seedlings from the virus-free sweet potato nursery or seedbed. High-quality virus-free sweet potato seedlings should have upright stems, bright green and shiny color; complete leaves, regular leaf shape, moderate size, and no signs of diseases and insect pests; plant in mid-March to early April when the minimum daily temperature is not lower than 10℃, sterilize and disinfect in the greenhouse before making ridges, make 80 ridges, two ridges as a group, ridge distance 75cm~90cm for spring potatoes, 60cm~80cm for summer potatoes, and ridge height 25cm~35cm; leave 40cm width between each group for the shed strip film to be reserved; spread drip irrigation white film on the ridge surface, plant in single row head planting method, plant 15cm apart, plant about 5000 plants per 667m2, and cover the shed strips with two films on the same day after planting; the seedlings are basically successful after 3d~5d of planting, and adjust the ventilation according to weather conditions and growth period to keep the temperature in the shed not exceeding 40℃; Step 2: In mid-April, due to the vigorous growth of sweet potato seedlings, remove the second film at 40cm-50cm to let in air, and train the seedlings in the open air for 3 days before cutting them. The cutting length of the seedlings is 25cm, and 100 seedlings are bundled. From mid-May to the end of May, the seedlings are cut four times, and an average of 20,000 seedlings are produced per 667m2. Step 3: After entering the rapid expansion period of tubers, spray 40kg to 50kg of 0.2% potassium dihydrogen phosphate solution per 667m2, and spray in the evening; water the roots 25d to 30d after transplanting, spray trace elements and water-soluble fertilizers each time you water, spray 2kg to 3kg of fruit-swelling fertilizer with the drip irrigation belt on the 40th day, and spray again on the 90th day. In plots with a vigorous growth trend, use growth regulators such as mepiquat, add water and spray when the ridges are 1 / 2 to 3 / 4 closed; spray 2 to 3 times at intervals of 5d to 7d according to the growth situation, and then control diseases and pests, spray pesticides with the drip irrigation belt on the 30th to 40th day, and drip the medicine again on the 90th to 100th day; When ventilation is needed during the vigorous growth period and the tuber expansion period, the film rolling assembly is started to drive the third film and the limiting block to move upward, so that the telescopic adjustment plate contracts, the vent is exposed, and the greenhouse body is vented. When the venting is completed, the third film and the limiting block are moved downward by the film rolling assembly to block and seal the vent. At the same time, the movable shaft is driven to rotate by the second driving member, and under the action of the movable plate, the pushing plate and the moving block, the arc adjustment plate and the telescopic adjustment plate are respectively moved along the outer sides of the first film and the third film, and the wrinkles on the first film and the third film are smoothed, so that the greenhouse body and the vent are kept sealed. The length of the film pressing belt is then adjusted by the first driving member so that the film pressing belt presses the first film. When ventilation is required, if the wind force is too strong, the support frame is moved toward the greenhouse body, and under the action of the movable plate, the compression spring, the support plate and the movable block, the support frame can be supported and limited. Step 5: Harvest and store the sweet potatoes in mid-July. From mid-July to the end of July, harvest the sweet potatoes and then rotate to fruit corn.

Images