Agricultural seedling raising greenhouse

Abstract

The utility model relates to the technical field of agricultural seedling growing greenhouses, and discloses an agricultural seedling growing greenhouse which comprises a plastic film, a heat conduction film is fixedly connected to the outer wall of the plastic film, an air cavity is formed between the heat conduction film and the plastic film, and an air inlet and an air outlet are formed in the two ends of one side of the heat conduction film respectively. One side of the air inlet is fixedly connected with an air inlet pipe, one side of the air outlet is fixedly connected with an air outlet pipe, and an air source heat pump is arranged on one side outside the plastic film; the heat conduction film is arranged outside the plastic film, the air inlet pipe and the air outlet pipe are arranged on the air source heat pump, and the air source heat pump and the heat conduction film are matched with each other, so that the heat conduction film can quickly melt a snow layer in snowfall, potential risks caused by accumulated snow accumulation are avoided, and the stability of the seedling raising greenhouse in the using process is improved; better heat preservation performance is provided for the seedling raising greenhouse, the proper temperature in the greenhouse can be maintained, and healthy growth of seedlings is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural seedling greenhouses, in particular to an agricultural seedling greenhouse. Background Art

[0002] Agricultural seedling greenhouses are a type of modern agricultural production facility, mainly used to cultivate seedlings of various crops in a protective environment to achieve early cultivation, off-season production or enhance the ability of seedlings to resist adverse environmental conditions. Seedling greenhouses include a main frame and covering materials. The main frame of a seedling greenhouse is usually composed of components such as columns, beams, longitudinal rods and arch rods. The columns are the main load-bearing components of the shed, and the beams play a supporting role and are connected to the columns to form a spatial force system; covering materials include plastic films, straw curtains, sunshade nets, etc. These materials not only play a role in preventing rain and snow, heat preservation and moisture retention, but also prevent direct sunlight from shining on crops, thereby cooling and preventing freezing.

[0003] Seedling greenhouses are widely used in agricultural production. In early spring or colder areas, seedling greenhouses can provide plants with a suitable growth environment and promote plant growth and development. At the same time, they can also be used for grafting to improve the success rate of grafting. In addition, seedling greenhouses can also be used for breeding and seedling raising of various crops, flower production, aquaculture, edible fungus cultivation, and three-dimensional cultivation.

[0004] The patent with the current announcement number CN213548628U discloses a seedling greenhouse for agricultural planting, including a seedling pool, wherein a plurality of ventilation holes are arranged at corresponding positions of two opposite side walls; in the seedling area, a horizontal baffle and a plurality of ventilation pipes are arranged on the inner wall; support plates are respectively arranged at the upper ends of the two opposite side walls of the seedling pool; a film, one end of which is respectively connected to the winding roller, and the other end is respectively connected to the pull-down roller; a support frame is respectively arranged at the two end positions of the two support plates; a side baffle film is respectively connected to the two support frames at corresponding positions; two support frames at opposite positions on the two support plates are connected by a connecting plate at one end away from the support plate, and the two connecting plates are rotatably connected to the two ends of the two winding rollers, and one of the connecting plates is provided with two servo motors; the two servo motors are respectively connected to the two winding rollers; the above technical scheme has the advantages of easy use and convenient control of the air volume, humidity and temperature in the seedling pool.

[0005] Although the above device solves the problem that the seedlings directly planted on the ground are susceptible to pests and diseases, the following problems still exist:

[0006] In existing agricultural seedling greenhouses, due to heavy snow, it is very dangerous for workers to go out to work on snowy days, and they are unable to clean the fallen snow on the greenhouses in time. The accumulated fallen snow will form a snow layer, which will put pressure on the top of the greenhouse, and may cause the greenhouse to collapse under the snow layer, damaging the seedlings and planting equipment inside, affecting the rhythm and progress of the entire agricultural production. Workers will also be required to subsequently repair the greenhouses and re-cultivate the seedlings, which requires a large amount of manpower and material resources. Summary of the invention

[0007] In view of the deficiencies in the prior art, the utility model provides an agricultural seedling raising greenhouse, which makes it difficult for snow to accumulate in the agricultural seedling raising greenhouse.

[0008] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: an agricultural seedling greenhouse, comprising a plastic film, wherein a heat-conductive film is fixedly connected to the outer wall of the plastic film, an air cavity is formed between the heat-conductive film and the plastic film, an air inlet and an air outlet are respectively provided at both ends of one side of the heat-conductive film, an air inlet side is fixedly connected to an air inlet pipe, and an air outlet side is fixedly connected to an air outlet pipe, an air source heat pump is arranged on the outer side of the plastic film, and the ends of the air inlet pipe and the air outlet pipe away from the heat-conductive film are both connected to the air source heat pump.

[0009] Furthermore, the inner wall of the heat-conducting film is fixedly connected with a plurality of connection belts which are equidistant and symmetrically arranged, and one side of the connection belt is fixedly connected with the outer wall of the plastic film.

[0010] Furthermore, connecting columns are fixedly connected at the four corners of the surface of the air source heat pump, and a rain cover is detachably connected to the top of the connecting column, and the lower edge of the rain cover is lower than the top surface of the air source heat pump.

[0011] Furthermore, the outer wall of the rain cover is fixedly connected with a plurality of fixing columns corresponding to the positions of the connecting columns, the fixing columns are threadedly connected with bolts, and thread grooves corresponding to the positions of the bolts are provided in the fixing columns and the connecting columns.

[0012] Furthermore, a connecting ring is fixedly connected to the outer wall of the bottom of the fixing column, and the outer wall of the connecting column is slidably connected to the inner wall of the connecting ring.

[0013] Furthermore, the air source heat pump is located on a side close to the air inlet.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model arranges a heat-conducting film outside the plastic film, arranges an air inlet pipe and an air outlet pipe on the air source heat pump, and utilizes the mutual cooperation of the air source heat pump and the heat-conducting film, so that the heat-conducting film can quickly melt the snow layer when snowfall occurs, avoiding the potential risks brought by snow accumulation, improving the stability of the seedling greenhouse during use, and providing better thermal insulation performance for the seedling greenhouse, which can help maintain a suitable temperature inside the greenhouse, which is conducive to the healthy growth of seedlings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the utility model as a whole;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the heat-conducting film, the connecting belt and the air source heat pump of the utility model;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the air source heat pump and the rainproof cover of the utility model;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the air source heat pump, rainproof cover and connecting column of the utility model;

[0021] Figure 6 It is a three-dimensional cross-sectional structural schematic diagram of the rainproof cover, the fixing column and the connecting ring of the utility model.

[0022] In the figure: 1. plastic film; 2. thermal conductive film; 3. air cavity; 4. air inlet; 5. air outlet; 6. air inlet pipe; 7. air outlet pipe; 8. air source heat pump; 9. connecting belt; 10. connecting column; 11. rain cover; 12. fixing column; 13. bolt; 14. threaded groove; 15. connecting ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] like Figures 1 to 6 As shown, an agricultural seedling greenhouse includes a plastic film 1, an outer wall of which is fixedly connected to a heat-conducting film 2, an air cavity 3 is formed between the heat-conducting film 2 and the plastic film 1, and an air inlet 4 and an air outlet 5 are respectively provided at both ends of one side of the heat-conducting film 2, one side of the air inlet 4 is fixedly connected to an air inlet pipe 6, and one side of the air outlet 5 is fixedly connected to an air outlet pipe 7, an air source heat pump 8 is arranged on the outer side of the plastic film 1, and the ends of the air inlet pipe 6 and the air outlet pipe 7 away from the heat-conducting film 2 are both connected to the air source heat pump 8.

[0025] like Figure 1 As shown, the agricultural seedling greenhouse in the utility model is similar to the existing agricultural seedling greenhouse structure, such as a seedling greenhouse for agricultural planting disclosed in the patent with announcement number CN213548628U. The main improvement of the utility model is that it is not easy to accumulate snow in the agricultural seedling greenhouse. Figures 1 to 6 As shown, when an agricultural seedling greenhouse in the utility model is in use, when it encounters heavy snow weather, the air source heat pump 8 is started, the air source heat pump 8 will heat the external air, and transport it to the air cavity 3 through the air inlet pipe 6 and the air inlet 4. After the hot air enters the air cavity 3, it will heat the thermal conductive film 2, causing the thermal conductive film 2 to heat up. When snow falls on the thermal conductive film 2, it will be directly melted by the high temperature and then slide down along the thermal conductive film 2, thereby avoiding the possibility of snow accumulation on the thermal conductive film 2 and the plastic film 1; it is worth noting that the air source heat pump 8 is an ultra-low temperature air source heat pump 8 among the mature products of the existing technology. The air source heat pump 8 is an energy-saving device that uses high-level energy to make heat flow from a low-level heat source air to a high-level heat source. Compared with other air heating devices, the air source heat pump 8 does not require a boiler, a corresponding boiler fuel supply system, a dust removal system and a flue gas exhaust system. The system is safe, reliable and pollution-free to the environment. The use of the ultra-low temperature air source heat pump 8 can It can ensure the stable operation of the air source heat pump 8 in a low temperature environment. At the same time, the operation of the air source heat pump 8 can not only prevent snow accumulation, but also provide additional insulation for the seedling greenhouse to a certain extent, which is helpful to maintain a stable temperature environment inside the greenhouse and ensure that the seedlings can get good growth conditions in a low temperature environment; the thermal conductive film 2 adopts a polymer composite thermal conductive material, such as a polymer film containing graphene or carbon nanotubes, which has excellent thermal conductivity, strong weather resistance, strong flexibility and adhesion, and is environmentally friendly and harmless. It has a high thermal conductivity coefficient, so that the heat provided by the air source heat pump 8 can be quickly and effectively transferred to the surface of the film to accelerate the snow melting process; the air outlet pipe 7 can be used to guide the low-temperature air in the air cavity 3 back to the air source heat pump 8 to realize the recovery of waste heat. The air outlet 5 should be located close to the bottom. Since hot air will rise, the air at this position is far away from the air inlet 4 and has the lowest temperature, which is convenient for quickly discharging the cold air in the air cavity 3.

[0026] By arranging a thermally conductive film 2 outside the plastic film 1, arranging an air inlet pipe 6 and an air outlet pipe 7 on the air source heat pump 8, and utilizing the mutual cooperation between the air source heat pump 8 and the thermally conductive film 2, the thermally conductive film 2 can quickly melt the snow layer when snowfall occurs, thereby avoiding the potential risks brought by snow accumulation, improving the stability of the seedling greenhouse during use, and providing the seedling greenhouse with better thermal insulation performance, which can help maintain a suitable temperature inside the greenhouse, which is conducive to the healthy growth of seedlings.

[0027] like Figure 3As shown, the inner wall of the heat-conducting film 2 is fixedly connected with a plurality of equidistant and symmetrically arranged connecting strips 9 , and one side of the connecting strip 9 is fixedly connected with the outer wall of the plastic film 1 .

[0028] Specifically, the connecting tape 9 can limit the expansion of the thermally conductive film 2 , preventing excessive air from being filled into the air cavity 3 , which would cause the thermally conductive film 2 to deform violently, and can provide shaping for the thermally conductive film 2 , thereby ensuring the normal use of the thermally conductive film 2 .

[0029] like Figure 5 As shown, connecting columns 10 are fixedly connected at the four corners of the surface of the air source heat pump 8, and a rain cover 11 is detachably connected to the top of the connecting column 10, and the lower edge of the rain cover 11 is lower than the top surface of the air source heat pump 8.

[0030] Specifically, the rain cover 11 is provided to protect the air source heat pump 8 from being eroded by rain, snow, etc., and to extend its service life. Since the air source heat pump 8 needs to be in an outdoor environment for a long time and is directly exposed to natural climate conditions, especially in seasons with heavy rain, if it is not protected, moisture may enter the heat pump, affecting the normal operation of electrical components and even causing safety problems such as short circuits; the lower edge of the rain cover 11 is lower than the top surface of the air source heat pump 8. This design is to ensure that rainwater flows smoothly along the inclined surface of the rain cover 11, preventing rainwater from being blown into the air source heat pump 8 by the wind, and further preventing rain and snow from penetrating.

[0031] like Figure 4 , Figure 5 and Figure 6 As shown, the outer wall of the rain cover 11 is fixedly connected with a plurality of fixing columns 12 corresponding to the positions of the connecting columns 10, the fixing columns 12 are internally threaded with bolts 13, and both the fixing columns 12 and the connecting columns 10 are provided with thread grooves 14 corresponding to the positions of the bolts 13.

[0032] Specifically, when the rain cover 11 is placed above the air source heat pump 8, the bolt 13 can be tightly connected with the threaded groove 14 in the connecting column 10 through the fixing column 12, thereby realizing the tight assembly of the rain cover 11 and the air source heat pump 8; this design is not only easy to install and disassemble, and convenient for regular inspection, cleaning and maintenance, but also greatly enhances the connection strength between the rain cover 11 and the air source heat pump 8, ensuring that the rain cover 11 will not move or detach easily in windy and rainy weather, and always maintains an effective protection state for the air source heat pump 8.

[0033] like Figure 6 As shown, a connecting ring 15 is fixedly connected to the outer wall of the bottom of the fixing column 12, and the outer wall of the connecting column 10 is slidably connected to the inner wall of the connecting ring 15.

[0034] Specifically, the connecting ring 15 can bring convenience to the staff in installing the rain cover 11, preventing the rain cover 11 from moving when the staff tightens the bolt 13, and preventing the fixing column 12 from being aligned with the threaded groove 14 in the connecting column 10, thereby improving the installation efficiency of the staff and reducing possible errors during the installation process.

[0035] like Figure 3 As shown, the air source heat pump 8 is located on a side close to the air inlet 4 .

[0036] Specifically, by setting the air source heat pump 8 close to the air inlet 4, the length of the air inlet pipe 6 can be reduced, effectively reducing the heat loss of hot air during transportation, ensuring that the hot air can quickly and fully heat the thermal conductive film 2, thereby improving the snow melting efficiency, which is beneficial to reducing the energy consumption of the air source heat pump 8, improving the energy efficiency of the entire system, and saving energy costs.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. An agricultural seedling greenhouse, comprising a plastic film (1), characterized in that: The outer wall of the plastic film (1) is fixedly connected to a heat-conducting film (2), an air cavity (3) is formed between the heat-conducting film (2) and the plastic film (1), an air inlet (4) and an air outlet (5) are respectively provided at two ends of one side of the heat-conducting film (2), one side of the air inlet (4) is fixedly connected to an air inlet pipe (6), and one side of the air outlet (5) is fixedly connected to an air outlet pipe (7), an air source heat pump (8) is arranged on the outer side of the plastic film (1), and the ends of the air inlet pipe (6) and the air outlet pipe (7) away from the heat-conducting film (2) are both connected to the air source heat pump (8).

2. The agricultural seedling raising greenhouse according to claim 1, characterized in that: The inner wall of the heat-conducting film (2) is fixedly connected to a plurality of equidistant and symmetrically arranged connection belts (9), and one side of the connection belt (9) is fixedly connected to the outer wall of the plastic film (1).

3. An agricultural seedling greenhouse according to claim 1 or 2, characterized in that: The four corners of the surface of the air source heat pump (8) are fixedly connected to connecting columns (10), and the top of the connecting column (10) is detachably connected to a rain cover (11), and the bottom edge of the rain cover (11) is lower than the top surface of the air source heat pump (8).

4. The agricultural seedling raising greenhouse according to claim 3, characterized in that: The outer wall of the rainproof cover (11) is fixedly connected to a plurality of fixing columns (12) corresponding to the positions of the connecting columns (10), the fixing columns (12) are internally threadedly connected to bolts (13), and thread grooves (14) corresponding to the positions of the bolts (13) are provided in both the fixing columns (12) and the connecting columns (10).

5. The agricultural seedling raising greenhouse according to claim 4, characterized in that: The outer wall at the bottom of the fixed column (12) is fixedly connected with a connecting ring (15), and the outer wall of the connecting column (10) is slidably connected to the inner wall of the connecting ring (15).

6. An agricultural seedling raising greenhouse according to claim 1, 2, 4 or 5, characterized in that: The air source heat pump (8) is located on a side close to the air inlet (4).

7. The agricultural seedling raising greenhouse according to claim 3, characterized in that: The air source heat pump (8) is located on a side close to the air inlet (4).

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