A new type of agricultural greenhouse

Abstract

The present invention discloses a novel agricultural greenhouse, which relates to the technical field of agricultural greenhouses and includes a shed frame, a shed film, a dew removal mechanism, and a dirt cleaning mechanism. The present invention detects the light intensity inside the multi-span greenhouse through a photosensitive sensor, sets a dew removal mechanism at the side end of the shed frame, and sets a dirt cleaning mechanism above the shed film at the upper part of the shed frame, so that the internal space of the multi-span greenhouse automatically forms a humidity stratification with a low humidity upper layer and a high humidity lower layer, which not only avoids dew condensation and reduces the light transmittance but also does not affect the environmental humidity required for agricultural planting. Moreover, the top shed film in the low humidity upper layer environment will not immediately form dew again, and the light transmittance is maintained continuously. At the same time, under the synchronous rotation of Gear 1, Gear 2 is also driven to rotate synchronously through the bilateral racks, and the scraping member is driven to reciprocate in the groove path where the top of the shed film meets through the bidirectional screw, so as to achieve the purpose of automatically scraping the dust and snow at the groove where the top of the shed film meets, further ensuring the light transmission and heat preservation effects inside the shed.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural greenhouses, and particularly relates to a novel agricultural greenhouse. Background Art

[0002] Agricultural multi-span greenhouses have a high land utilization rate, relatively uniform temperature distribution and gentle change inside the greenhouse, strong wind pressure resistance, and small-scale mechanized operations can be carried out inside the greenhouse, which is convenient for large-scale management. Therefore, they have developed rapidly in some places in recent years, resulting in regional characteristics. However, the air flow inside the multi-span greenhouse is not smooth and the humidity is high. Especially in winter, there is a serious condensation situation, and the formed low light transmission state affects the growth of agricultural plants. The existing technology often uses the method of covering with a non-drip film, and the condensed water droplets flow down along the film surface to improve the light transmittance.

[0003] However, in the long-term use process, it is found that the existing agricultural multi-span greenhouses still have certain drawbacks: First, in order to enhance the light transmittance, the top of each shed frame of the multi-span greenhouse is designed with an arc-shaped bulge. Although the condensation will flow down along the curved surface, it will immediately re-condense on the flowing shed film under high humidity conditions, and the light transmittance is not continuous; Second, for the groove where the shed films of the multi-span greenhouse are connected at the top, there is a lot of dust accumulated. In winter, the snow accumulates further along the arc of the shed roof towards the groove on the dust with greater resistance, still affecting the heat preservation effect inside the greenhouse. Summary of the Invention

[0004] The purpose of the present invention is to provide a novel agricultural greenhouse to solve the above-mentioned defects in the prior art.

[0005] A novel agricultural greenhouse includes a shed frame, a shed film, a dew removal mechanism, and a dirt cleaning mechanism. The shed frame is a multi-span setting and is divided into an upper raised surface and a side flat surface. The shed film covers the shed frame. A photosensitive sensor is arranged at the lower part of the shed frame. The dew removal mechanism is installed at the side end of the shed frame and is used for removing dew on the inner surface of the multi-span greenhouse. The dirt cleaning mechanism is arranged at the upper part of the shed frame and above the shed film, and is used for removing the light-blocking dust at the groove where the shed films of the multi-span greenhouse are connected at the top.

[0006] Preferably, the dew removal mechanism includes a driving motor, a circulation pipeline, and a "V"-shaped sliding part. The driving motor is installed on the side end of the shed frame. The output end of the driving motor is coaxially installed with a driving wheel and a first gear. The circulation pipeline is horizontally rotatably installed on the shed frame. The circulation pipeline penetrates inside and outside the shed film. A double-sided rack meshing with the first gear is slidably arranged on the outer side of the shed frame. Adjustable mounting brackets are symmetrically installed on the shed frame. The upper end of the mounting bracket is hinged with an inclined guide rod, and the lower end of the mounting bracket is hinged with a slotted diversion plate. The other ends of the guide rod and the slotted diversion plate are both hinged with a fixed frame. Water collecting troughs are symmetrically arranged on the inner side ends of the shed frame. The fixed frame is installed in the middle of the upper end of the shed frame. A water pump is also installed on the fixed frame. The water pump is communicated with the circulation pipeline. The sliding parts are symmetrically installed on the circulation pipeline by threads. Liquid collecting rods are symmetrically installed on the sliding parts. Magnetic sliders are slidably arranged on the liquid collecting rods. Air channels are symmetrically formed on the sliding parts. Permanent magnet pistons attracted to the magnetic sliders are slidably arranged in the air channels. The side end of the magnetic slider is hinged with a follower telescopic rod. The lower end of the follower telescopic rod is slidably arranged on the guide rod. A plurality of driven wheels are also installed on the side end of the shed frame. The plurality of driven wheels are connected with the driving wheel by a pull rope. The pull rope is fixedly connected with the lower part of the sliding part.

[0007] Preferably, the cleaning mechanism includes a mounting seat, a bidirectional screw rod, and a sliding seat. The mounting seat is installed on the upper part of the shed frame and is located at the groove where the shed films of the multi-span greenhouse are connected at the top. The bidirectional screw rod is horizontally rotatably installed on the mounting seat. The end of the bidirectional screw rod is coaxially fixedly connected with a second gear. The driven wheel meshes with the transmission chain. The sliding seats are symmetrically arranged on the bidirectional screw rod by threads. A scraping part is detachably installed on the sliding seat.

[0008] Preferably, the circulation pipeline divides the internal space of the multi-span greenhouse into an upper layer with low humidity and a lower layer with high humidity.

[0009] Preferably, the lower end opening of the slotted diversion plate is matched with the water collecting trough.

[0010] Preferably, the first driven wheel, the circulation pipeline, the sliding part, and the liquid collecting rod are all made of metal materials.

[0011] Preferably, the scraping part is matched with the groove where the shed films of the multi-span greenhouse are connected at the top, and the scraping part is made of a non-rigid material.

[0012] Preferably, the photosensitive sensor is placed in the lower layer with high humidity.

[0013] The advantages of the present invention are as follows: the light intensity in the multi-span greenhouse is detected by a photosensitive sensor, and a dew removal mechanism is arranged at the side end of the shed, and a cleaning mechanism is arranged at the upper part of the shed and above the shed film. The output end of the driving motor drives the driving wheel to rotate, and drives the pull rope to pull the sliding part to slide back and forth horizontally. The sliding part and the magnetic slider can scrape off the condensed water dew, and the permanent magnetic piston in the airway slides back and forth synchronously, and an airflow rushing toward the roof is formed intermittently at the port of the airway. The condensed water dew is collected and the intermittent airflow is continuously supplied, so that the internal space of the multi-span greenhouse automatically forms a humidity stratification of a low-humidity upper layer and a high-humidity lower layer, which not only avoids condensation and reduces the light transmittance, but also does not affect the environmental humidity required for the growth of agricultural plants. In addition, the top shed film in the low-humidity upper layer environment will not immediately condense again, and the light transmittance can be sustained.

[0014] Under the synchronous rotation of gear one, gear two is also driven to rotate synchronously through the double-sided rack, and the bidirectional screw drives the scraper to slide back and forth in the groove path where the top of the greenhouse film is connected, so as to automatically scrape off the dust and snow in the groove where the top of the greenhouse film is connected, and further ensure the light transmission and heat preservation effect in the greenhouse. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the external structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the structure of the present invention (not covered with greenhouse film).

[0017] Figure 3 It is a schematic diagram of some structures in the present invention.

[0018] Figure 4 for Figure 3 A magnified view of the structure at center.

[0019] Figure 5 for Figure 3 A magnified view of the structure at point B.

[0020] Figure 6 It is an internal schematic diagram of part of the structure in the present invention.

[0021] Figure 7 It is an internal side view of the present invention.

[0022] Figure 8 It is a schematic diagram of the pulling direction state of the pull rope in the present invention.

[0023] Among them, 1 - shed frame, 2 - shed film, 3 - dew removal mechanism, 4 - cleaning mechanism, 5 - photosensitive sensor, 301 - drive motor, 302 - circulation pipeline, 303 - sliding part, 304 - driving wheel, 305 - gear one, 306 - bilateral rack, 307 - mounting bracket, 308 - guide rod, 309 - grooved diversion plate, 310 - water collecting tank, 311 - liquid collecting rod, 312 - magnetic slider, 313 - air duct, 314 - permanent magnet piston, 315 - follower telescopic rod, 316 - fixed bracket, 317 - water pump, 318 - driven wheel, 319 - pull rope, 41 - mounting seat, 42 - bidirectional screw rod, 43 - sliding seat, 44 - gear two, 45 - scraping part. Specific implementation manner

[0024] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0025] As Figures 1 to 8 shown, a new type of agricultural greenhouse includes a shed frame 1, a shed film 2, a dew removal mechanism 3 and a cleaning mechanism 4. The shed frame 1 is set as a multi-span structure and is divided into an upper raised surface and a side flat straight surface. The shed film 2 covers the shed frame 1. A photosensitive sensor 5 is arranged at the lower part of the shed frame 1. The dew removal mechanism 3 is installed at the side end of the shed frame 1 and is used for removing dew on the inner surface of the multi-span greenhouse. The cleaning mechanism 4 is arranged at the upper part of the shed frame 1 and is placed above the shed film 2, and is used for removing the light-blocking dust at the groove where the top of the shed film 2 of the multi-span greenhouse is connected.

[0026] In this embodiment, the dew removal mechanism 3 includes a driving motor 301, a circulation pipeline 302, and a "V"-shaped sliding part 303. The driving motor 301 is installed on the side end of the shed frame 1. The output end of the driving motor 301 is coaxially installed with a driving wheel 304 and a first gear 305. The circulation pipeline 302 is horizontally rotatably installed on the shed frame 1. The circulation pipeline 302 penetrates inside and outside the shed film 2. A double-sided rack 306 meshing with the first gear 305 is slidably arranged on the outside of the shed frame 1. An adjustable mounting bracket 307 is symmetrically installed on the shed frame 1. The upper end of the mounting bracket 307 is hinged with an inclined guide rod 308. The lower end of the mounting bracket 307 is hinged with a slotted diversion plate 309. The other ends of the guide rod 308 and the slotted diversion plate 309 are both hinged with a fixed frame 316. Water collecting troughs 310 are symmetrically arranged on the inner side ends of the shed frame 1. The fixed frame 316 is installed in the middle of the upper end of the shed frame 1. A water pump 317 is also installed on the fixed frame 316. The water pump 317 is communicated with the circulation pipeline 302. The sliding parts 303 are symmetrically installed on the circulation pipeline 302 by threads. Liquid collecting rods 311 are symmetrically installed on the sliding parts 303. Magnetic sliders 312 are slidably arranged on the liquid collecting rods 311. Air channels 313 are symmetrically formed on the sliding parts 303. Permanent magnet pistons 314 attracted to the magnetic sliders 312 are slidably arranged in the air channels 313. The side ends of the magnetic sliders 312 are hinged with follower telescopic rods 315. The lower ends of the follower telescopic rods 315 are slidably arranged on the guide rod 308. A plurality of driven wheels 318 are also installed on the side end of the shed frame 1. The plurality of driven wheels 318 are connected with the driving wheel 304 through a pull rope 319. The pull rope 319 is fixedly connected with the lower part of the sliding part 303.

[0027] In this embodiment, the cleaning mechanism 4 includes a mounting seat 41, a bidirectional screw 42, and a sliding seat 43. The mounting seat 41 is installed on the upper part of the shed frame 1 and is placed at the groove where the top of the shed film 2 of the multi-span greenhouse is connected. The bidirectional screw 42 is horizontally rotatably installed on the mounting seat 41. The end of the bidirectional screw 42 is coaxially fixedly connected with a second gear 44. The driven wheel meshes with the transmission chain 306. The sliding seats 43 are symmetrically arranged on the bidirectional screw 42 by threads. A scraping member 45 is detachably installed on the sliding seat 43.

[0028] It should be noted that the model of the photosensitive sensor 5 is LXD / GB5-A1DPZ. The driving motor 301 is a servo motor and is electrically connected with the photosensitive sensor 5. Thrust settings are provided in the middle of both the circulation pipeline 302 and the bidirectional screw 42. Horizontally, two adjacent sliding parts 303 are fixedly connected. For the two sliding parts 303 on the same straight-section pull rope 319, one of the sliding parts 303 is fixedly connected with the pull rope 319 and the other is slidably connected.

[0029] In this embodiment, the circulation pipeline 302 divides the internal space of the multi-span greenhouse into an upper layer with low humidity and a lower layer with high humidity.

[0030] In this embodiment, the lower end opening of the grooved diversion plate 309 is matched with the water collecting tank 310.

[0031] It is worth mentioning that the circulation pipeline 302, the sliding part 303, the liquid collecting rod 311 and the circulation pipeline 318 are all made of beryllium copper with good heat conduction effect. The lower end of the sliding part 303 is provided with an opening and is matched with the grooved diversion plate 309 directly below.

[0032] In this embodiment, the scraping member 45 is matched with the groove at the top of the multi-span greenhouse film 2, and the scraping member 45 is made of non-rigid material.

[0033] In addition, the photosensitive sensor 5 is placed in the lower layer with high humidity.

[0034] Working process and principle: During the use of the present invention, first, according to the uplift specification at the upper end of the shed frame 1 and the thickness of the greenhouse film 2, a scraping member 45 adapted to the groove at the top of the greenhouse film 2 is selected and installed on the sliding seat 43. Then, the photosensitive sensor 5 is used to detect the light intensity inside the multi-span greenhouse. When the light intensity is lower than the set light intensity suitable for agricultural planting inside the shed, it proves that there is dew condensation inside the film, or snow or dust adheres to the outside of the film.

[0035] At this time, the driving motor 301 and the water pump 317 are automatically started. The output end of the driving motor 301 drives the driving wheel 304 and the gear one 305 to rotate synchronously. The rotation of the driving wheel 304 is pulled by the pull rope 319. Under the pulling of the steering of several 318, the spaced pull ropes 319 are tractioned in the same direction, and the adjacent pull ropes 319 are tractioned in the opposite direction. Since one sliding part 303 on the same straight section of the pull rope 319 is fixedly connected to the pull rope 319 and the other is slidably connected, the two sliding parts 303 on the circulation pipeline 302 slide horizontally towards each other until the two sliding parts 303 slide to the thrust stop position in the middle of the circulation pipeline 302. Then, the driving motor 301 is reversed, so that the two sliding parts 303 on one circulation pipeline 302 slide horizontally back and forth.

[0036] During this process, the water pump 317 drives the stored water in the circulation pipeline 302 to circulate, and will conduct the low temperature outside the shed to the internal stored water through the circulation pipeline 302 outside the greenhouse, and then conduct it to the circulation pipeline 302, the sliding part 303 and the liquid collecting rod 311 inside the shed through the circulating water, and dew condensation will form on them.

[0037] The sliding part 303 scrapes off the dew condensed on the circulation pipe 302 during the sliding process, and the follower telescopic rod 315 on the liquid collecting rod 311 slides synchronously along the obliquely arranged guide rod 308, so that the magnetic slider 312 scrapes off the dew condensed on the liquid collecting rod 311, and the scraped dew flows through the opening at the lower end of the sliding part 303 into the slotted guide plate 309 directly below, and then is collected into the water collecting tank 310 along the oblique slotted guide plate 309;

[0038] At the same time, the reciprocating sliding of the magnetic slider 312 also drives the permanent magnet piston 314 in the airway 313 to slide reciprocally synchronously, and an airflow rushing toward the roof is intermittently formed at the port of the airway 313. The collection of condensed water and the continuous supply of intermittent airflow make the internal space of the multi-span greenhouse form a humidity stratification of a low-humidity upper layer and a high-humidity lower layer, which not only avoids condensation to reduce light transmittance but also does not affect the environmental humidity required for crop growth.

[0039] And gear 1 305 rotates synchronously with the output end of the driving motor 301, and also drives gear 2 44 to rotate synchronously through the double-sided rack 306, and drives the scraper 45 to slide back and forth in the groove path connected to the top of the greenhouse film 2 through the double-sided screw 42, thereby scraping off the dust and snow in the groove connected to the top of the greenhouse film 2.

[0040] Based on the above, the present invention detects the light intensity in the multi-span greenhouse through a photosensitive sensor 5, and sets a dew removal mechanism 3 at the side end of the shed 1, and sets a cleaning mechanism 4 at the upper part of the shed 1 and above the shed film 2. The output end of the driving motor 301 drives the driving wheel 304 to rotate, and drives the pull rope 319 to pull the sliding part 303 to slide horizontally back and forth. The sliding part 303 and the magnetic slider 312 can scrape off the condensed water dew, and the permanent magnetic piston 314 in the airway 313 slides synchronously back and forth. An airflow rushing toward the roof is intermittently formed at the port of the airway 313. The collection of condensed water dew and the continuous supply of intermittent airflow make the internal space of the multi-span greenhouse automatically form a humidity stratification of a low-humidity upper layer and a high-humidity lower layer, which not only avoids condensation and reduces the light transmittance, but also does not affect the environmental humidity required for the growth of crops. In addition, the top shed film under the low-humidity upper layer environment will not immediately condense again, and the light transmittance can be sustained.

[0041] And under the synchronous rotation of gear 1 305, gear 2 44 is also driven to rotate synchronously through the bilateral rack 306, and the scraper 45 is driven by the bidirectional screw 42 to slide back and forth in the groove path connected to the top of the greenhouse film 2, so as to automatically scrape off the dust and snow in the groove connected to the top of the greenhouse film 2, and further ensure the light transmission and heat preservation effect in the greenhouse.

[0042] As is known by common technical knowledge, the present invention can be implemented by other embodiments that do not depart from its spiritual essence or essential features. Therefore, the above-disclosed embodiments are illustrative in all aspects and not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are encompassed by the present invention.

Claims

1. An agricultural greenhouse, characterized in that, It includes a shed frame (1), a shed film (2), a dew removal mechanism (3) and a cleaning mechanism (4); The shed frame (1) is a multi-span structure and is divided into an upper raised surface and a side flat surface. The shed film (2) covers the shed frame (1), and a photosensitive sensor (5) is arranged at the lower part of the shed frame (1); The cleaning mechanism (4) is arranged at the upper part of the shed frame (1) and above the shed film (2), and is used to remove the light-blocking dust at the groove where the tops of the shed films (2) of the multi-span greenhouse are connected; The dew removal mechanism (3) is installed at the side end of the shed frame (1) and is used to remove dew from the inner surface of the multi-span greenhouse. The dew removal mechanism (3) includes a driving motor (301), a circulation pipeline (302) and a "V"-shaped sliding part (303). The driving motor (301) is installed on the side end of the shed frame (1), and a driving wheel (304) and a first gear (305) are coaxially installed at the output end of the driving motor (301). The circulation pipeline (302) is horizontally rotatably installed on the shed frame (1), and the circulation pipeline (302) penetrates inside and outside the shed film (2). A double-sided rack (306) meshing with the first gear (305) is slidably arranged on the outside of the shed frame (1). Adjustable mounting brackets (307) are symmetrically installed on the shed frame (1). An inclined guide rod (308) is hinged to the upper end of the mounting bracket (307), and a slotted diversion plate (309) is hinged to the lower end of the mounting bracket (307). The other ends of the guide rod (308) and the slotted diversion plate (309) are both hinged to a fixed bracket (316). Water collecting troughs (310) are symmetrically arranged at the inner side end of the shed frame (1). The fixed bracket (316) is installed in the middle of the upper end of the shed frame (1), and a water pump (317) is also installed on the fixed bracket (316). The water pump (317) is communicated with the circulation pipeline (302). The sliding parts (303) are symmetrically threadedly installed on the circulation pipeline (302). Liquid collecting rods (311) are symmetrically installed on the sliding parts (303). Magnetic sliders (312) are slidably arranged on the liquid collecting rods (311). Air channels (313) are symmetrically formed on the sliding parts (303). Permanent magnet pistons (314) attracted to the magnetic sliders (312) are slidably arranged in the air channels (313). A follower telescopic rod (315) is hinged to the side end of the magnetic slider (312). The lower end of the follower telescopic rod (315) is slidably arranged on the guide rod (308). A number of driven wheels (318) are also installed on the side end of the shed frame (1). The number of driven wheels (318) is connected to the driving wheel (304) through a pull rope (319). The pull rope (319) is fixedly connected to the lower part of the sliding part (303).

2. The agricultural greenhouse according to claim 1, characterized in that: The dirt cleaning mechanism (4) includes a mounting seat (41), a bidirectional screw (42) and a sliding seat (43). The mounting seat (41) is installed on the upper part of the shed frame (1) and placed at the groove where it meets the top of the multi-span greenhouse film (2). The bidirectional screw (42) is horizontally and rotatably installed on the mounting seat (41). A second gear (44) that meshes with the bilateral rack (306) is coaxially and fixedly connected to the end of the bidirectional screw (42). The sliding seats (43) are symmetrically arranged on the bidirectional screw (42) in a threaded manner, and a scraping member (45) is detachably installed on the sliding seat (43).

3. The agricultural greenhouse according to claim 1, wherein: The circulation pipeline (302) divides the internal space of the multi-span greenhouse into an upper layer with low humidity and a lower layer with high humidity.

4. The agricultural greenhouse according to claim 1, characterized in that: The lower opening of the grooved flow guide plate (309) is matched with the water collecting tank (310).

5. The agricultural greenhouse according to claim 1, characterized in that: The first gear (305), the circulation pipeline (302), the sliding part (303) and the liquid collecting rod (311) are all made of metal materials.

6. The agricultural greenhouse according to claim 2, wherein: The scraping member (45) is matched with the groove where it meets the top of the multi-span greenhouse film (2), and the scraping member (45) is made of a non-rigid material.

7. An agricultural greenhouse according to claim 1, characterized in that: The photosensitive sensor (5) is placed in the lower layer with high humidity.

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