Multifunctional cold region double-layer greenhouse main body structure
By adopting a multi-functional cold double-layer greenhouse main structure in a solar greenhouse, including intelligent ventilation, solar heat collection and automatic snow cleaning design, the problems of high ventilation temperature control and insufficient insulation performance in the existing greenhouse design are solved, and the stability of the temperature in the greenhouse and the continuous high yield of vegetables are achieved.
Patent Information
- Application Number
- CN202421796633.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The existing solar greenhouse design has difficulty in ventilation and temperature control, rain leakage on rainy days, insufficient insulation performance, and lack of snow cleaning and heat storage devices, which leads to the inability to grow normally in winter and affects yield.
The main structure of a multi-functional cold-land double-layer greenhouse is adopted, including the front slope outer steel frame, the front slope inner steel frame, the rear slope steel frame, the solar thermal collecting structure, the insulation quilt, the outward window structure, the temperature sensor probe and the control box to achieve intelligent ventilation, solar thermal collecting and automatic snow cleaning.
It effectively solves the instability of the temperature in the greenhouse, improves the insulation performance and lighting efficiency, and meets the demand for continuous production of high-quality vegetables throughout the year.
Smart Images
Figure CN222786532U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of solar greenhouses, in particular to a multifunctional cold-region double-layer greenhouse main structure. Background Art
[0002] Most of the existing solar greenhouses use a single-layer arc ridge steel frame structure and plastic slit ventilation construction mode, which has the following technical problems in design:
[0003] 1. Frequent manual opening and closing of windows makes ventilation and temperature control difficult, and the temperature error in the greenhouse is also large, which is not conducive to crop growth.
[0004] 2. The ventilation method of the front slope plastic seam can achieve ventilation to a certain extent, but it is easy to leak rain and water on rainy days, resulting in excessive humidity in the greenhouse, affecting crop growth. At the same time, plastic materials are prone to aging and wrinkling under long-term wind, sun and rain, with a short service life and high maintenance costs;
[0005] 3. The thermal insulation performance cannot meet the requirements of winter vegetable production in cold areas. The single-layer arc ridge steel frame structure used will be exposed to the outside and will be wetted by rain and frozen, which reduces the thermal insulation performance and has a high failure rate. At the same time, it limits the retracting position of the thermal insulation blanket. The thermal insulation blanket cannot be retracted to the ridge of the shed to the maximum extent, affecting the lighting efficiency of the greenhouse;
[0006] 4. Lack of snow removal equipment, relying on manual snow removal, heavy workload and potential safety hazards;
[0007] 5. Lack of heat storage device causes the greenhouse to heat up quickly and cool down quickly. It is unable to solve the problem that the greenhouse temperature rises quickly when the sun comes out and has to release the heat. When night comes or in cold weather, the greenhouse temperature quickly dissipates and drops. It cannot provide a suitable growth environment for vegetables, resulting in the inability of vegetables to grow normally in winter, which in turn affects the yield of the greenhouse. Especially in the cold northern regions, it cannot meet the demand for continuous production of high-quality vegetables all year round.
[0008] In view of this, the present utility model is proposed. Utility Model Content
[0009] The purpose of the utility model is to provide a multifunctional cold-region double-layer greenhouse main structure to solve the technical problems that the existing solar greenhouse design in the prior art has defects, cannot provide a more suitable growth environment for vegetables, and cannot meet the needs of continuous production of high-quality vegetables throughout the year. The preferred technical solutions among the many technical solutions provided by the utility model can produce many technical effects as described below.
[0010] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0011] The utility model provides a multifunctional cold-region double-layer greenhouse main structure comprising a front slope outer steel frame, a front slope inner steel frame, a rear slope steel frame, a solar heat collection structure, a heat preservation blanket, an outward-turning window structure, a temperature sensor and a control box;
[0012] The lower end of the front slope outer steel frame is connected to the base surface, and the upper end of the front slope outer steel frame is connected to the upper end of the rear slope steel frame and then continues to bend and extend, so that a space for installing the outward-turning window structure is formed between the extended portion of the front slope outer steel frame and the rear slope steel frame;
[0013] The lower end of the front slope inner steel frame is connected to the base surface, the upper end of the front slope inner steel frame is connected to the rear slope steel frame, and the fixed end of the thermal insulation quilt is arranged at the connection between the front slope inner steel frame and the rear slope steel frame;
[0014] The temperature sensing probe is used to detect the temperature in the greenhouse; the outward-turning window structure and the temperature sensing probe are electrically connected to the control box respectively;
[0015] The solar heat collection structure is arranged close to the rear slope steel frame, and the solar heat collection structure includes any one or any combination of a solar heat collection tank, a solar hot water bag, a solar hot water curtain or a solar hot water panel, and a solar heat storage panel.
[0016] Preferably, the outward-flip window structure includes a window body, a motor, a transmission shaft, a gear and a rack. The upper end of the window body is rotatably connected to the extension part. The motor is arranged on the inner wall surface of the rear slope steel frame. The motor is transmission-connected to the transmission shaft. The transmission shaft extends along the length direction of the window body. The gear is axially sleeved on the transmission shaft, and there are multiple gears. The rack is meshed with the gears in a one-to-one correspondence, and the fixed end of the rack is hingedly connected to the lower end of the window body.
[0017] Preferably, it further comprises a first longitudinal beam, wherein the number of the first longitudinal beams is plural and the first longitudinal beams are arranged in parallel on the inner wall surface of the outer steel frame of the front slope through a longitudinal beam frame;
[0018] It also includes a second longitudinal beam, wherein the number of the second longitudinal beams is multiple and the second longitudinal beams are arranged in parallel on the inner steel frame of the front slope;
[0019] It also includes reinforcing ribs, which are arranged between the front slope outer steel frame and the rear slope steel frame.
[0020] Preferably, the thermal insulation quilt is located above the inner steel frame, and the outer steel frame of the front slope is coated with a film to form a rain cover for the thermal insulation quilt.
[0021] Preferably, it also includes a snow shaker, which is located on the inner side of the middle part of the front slope outer steel frame and is transmission-connected to the front slope outer steel frame through the first longitudinal beam and the longitudinal beam frame to transmit vibration.
[0022] Preferably, the sun-facing surfaces of the solar heat collection tank and the solar hot water bag are dark in color, and the openings are arranged upward.
[0023] Preferably, the solar water heating curtain and / or the solar water heating panel are hung on the inner wall surface of the rear slope steel frame.
[0024] Preferably, the front slope outer steel frame, the front slope inner steel frame and the rear slope steel frame are all arc-shaped structures, the front slope outer steel frame is located outside the front slope inner steel frame, and the lengths of the front slope outer steel frame and the front slope inner steel frame are both greater than the length of the rear slope steel frame.
[0025] Preferably, the inner angle formed by the front slope outer steel frame and the front slope inner steel frame with the base surface is smaller than the inner angle formed by the rear slope steel frame with the base surface.
[0026] The preferred technical solution of the utility model can also produce at least the following technical effects:
[0027] The utility model effectively avoids the technical problems that the existing solar greenhouse design in the prior art has defects and cannot provide a more suitable growth environment for vegetables and cannot meet the demand for continuous production of high-quality vegetables throughout the year. The utility model provides a multifunctional cold-region double-layer greenhouse main structure, comprising a front slope outer steel frame, a front slope inner steel frame, a rear slope steel frame, a solar heat collection structure, a thermal insulation blanket, an outward-turning window structure, a temperature sensing probe and a control box; the lower end of the front slope outer steel frame is connected to a base surface, the upper end of the front slope outer steel frame is connected to the upper end of the rear slope steel frame and then continues to bend and extend, and a space for installing the outward-turning window structure is formed between the extended part of the front slope outer steel frame and the rear slope steel frame; the lower end of the front slope inner steel frame is connected to the base surface, the upper end of the front slope inner steel frame is connected to the rear slope steel frame, and the fixed end of the thermal insulation blanket is arranged at the connection between the front slope inner steel frame and the rear slope steel frame; the temperature sensing probe is used to detect the temperature in the greenhouse; the outward-turning window structure and the temperature sensing probe are electrically connected to the control box respectively; the solar heat collection structure is arranged close to the rear slope steel frame, and the solar heat collection structure comprises any one or any combination of a solar heat collection tank, a solar hot water bag, a solar heat storage panel, a solar hot water curtain or a solar heat storage panel. The utility model realizes intelligent ventilation of the greenhouse by electrically connecting the outward-folding window structure and the temperature sensor to the control box respectively. When the temperature sensor detects that the temperature in the greenhouse is higher than the highest preset value, the control box drives the outward-folding window structure to open automatically to ventilate and reduce the temperature in the greenhouse; when the temperature sensor detects that the temperature is lower than the lowest preset value, the control box drives the outward-folding window structure to close automatically to keep the temperature in the greenhouse stable, so that the temperature in the greenhouse is always kept within a range suitable for vegetable growth. Moreover, the solar energy collection structure is arranged close to the back slope steel frame, which can make full use of solar energy for heat collection. During the day, the sunlight shines on the back slope steel frame area, and the solar energy collection structure directly converts the sunlight into heat energy and stores it in water, providing an additional heat source for the greenhouse at night. When the greenhouse temperature is low, the solar energy collection structure can release the stored heat, increase the temperature in the greenhouse, provide a more suitable growth environment for vegetables, and meet the needs of continuous production of high-quality vegetables all year round. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0029] Figure 1 This is a structural schematic diagram of the main structure of a multifunctional cold-region double-layer greenhouse provided by the utility model;
[0030] Figure 2 yes Figure 1 An enlarged view of part A.
[0031] In the figure:
[0032] 1. Front slope outer steel frame; 101. Extension; 2. Front slope inner steel frame; 3. Rear slope steel frame; 4. First longitudinal beam; 5. Second longitudinal beam; 6. Reinforcing ribs; 7. Window; 8. Motor; 9. Gear; 10. Rack; 11. Transmission shaft; 12. Sealing strip; 13. Insulation blanket; 14. Snow shaker; 15. Solar water heating panel; 16. Suspension; 17. Control box; 171. Operation buttons; 18. User terminal. DETAILED DESCRIPTION
[0033] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.
[0034] like Figure 1-Figure 2 As shown, the utility model provides a multifunctional cold-region double-layer greenhouse main structure, including a front slope outer steel frame 1, a front slope inner steel frame 2, a rear slope steel frame 3, a solar heat collection structure, a heat preservation blanket 13, an outward-turning window structure, a temperature sensor and a control box 17; the lower end of the front slope outer steel frame 1 is connected to the base surface, and the upper end of the front slope outer steel frame 1 is connected to the upper end of the rear slope steel frame 3 and then continues to bend and extend, and a space for installing the outward-turning window structure is formed between the extension part 101 of the front slope outer steel frame 1 and the rear slope steel frame 3; the front slope inner steel frame 2 is connected to the base surface, the upper end of the front slope inner steel frame 2 is connected to the rear slope steel frame 3, and the fixed end of the insulation blanket 13 is arranged at the connection between the front slope inner steel frame 2 and the rear slope steel frame 3; the temperature sensor is used to detect the temperature in the greenhouse; the outward-turning window structure and the temperature sensor are electrically connected to the control box 17 respectively; the solar energy collection structure is arranged close to the rear slope steel frame 3, and the solar energy collection structure includes any one or any combination of a solar energy collection water tank, a solar energy hot water bag, a solar energy hot water curtain, a solar energy hot water panel 15 or a solar energy storage panel.
[0035] Furthermore, the control box 17 is provided with a control switch and an operation button 171, which facilitates manual operation to adjust the environmental conditions in the greenhouse. The control box 17 is electrically connected to the user terminal 18, so that the user can remotely control it through a mobile phone.
[0036] Compared with the front slope plastic slit ventilation method in the prior art, the intelligent ventilation of the greenhouse is realized by electrically connecting the outward-turning window structure and the temperature sensing probe to the control box 17 respectively, which is more scientific and reasonable.
[0037] When the temperature sensor detects that the temperature in the greenhouse is higher than the highest preset value, the control box 17 drives the outward-folding window structure to open automatically for ventilation and lowering the temperature in the greenhouse; when the temperature sensor detects that the temperature is lower than the lowest preset value, the control box 17 drives the outward-folding window structure to close automatically to keep the temperature in the greenhouse stable, so that the temperature in the greenhouse is always kept within a range suitable for vegetable growth.
[0038] The solar heat collection structure is arranged near the back slope steel frame 3, which can make full use of solar energy for heat collection and provide an additional heat source for the greenhouse. In cold weather or at night, the solar heat collection structure can release the stored heat, increase the temperature in the greenhouse, provide a more suitable growth environment for vegetables, and meet the needs of continuous production of high-quality vegetables all year round.
[0039] The insulation blanket 13 can cover the outside of the front slope inner steel frame 2, providing an additional insulation layer, effectively improving the insulation performance of the greenhouse. The fixed end of the insulation blanket 13 is set at the connection between the front slope inner steel frame 2 and the rear slope steel frame 3, so that the insulation blanket 13 can be smoothly rolled along the front slope inner steel frame 2 when rolling up, and can be rolled up to the connection between the front slope inner steel frame 2 and the rear slope steel frame 3 to the greatest extent. Since the rolling position of the insulation blanket 13 is reasonable, it will not block the lighting surface of the greenhouse when rolling up, thereby ensuring the lighting efficiency of the greenhouse.
[0040] A space for installing the outward-folding window structure is formed between the front slope outer steel frame 1 and the rear slope steel frame 3, and a space for rolling up the insulation blanket 13 is formed between the front slope inner steel frame 2 and the rear slope steel frame 3, which not only realizes the function of ventilation, but also ensures the thermal insulation performance of the greenhouse.
[0041] As an optional embodiment, the outward-opening window structure includes a window body 7, a motor 8, a transmission shaft 11, a gear 9 and a rack 10. The upper end of the window body 7 is rotatably connected to the extension portion 101. The motor 8 is arranged on the inner wall surface of the rear slope steel frame 3. The motor 8 is in transmission connection with the transmission shaft 11, and the transmission shaft 11 extends along the length direction of the window body 7. There are multiple gears 9, which are sleeved on the transmission shaft 11 along their axial direction. The rack 10 is meshed with the gears 9 one by one, and the fixed end of the rack 10 is hingedly connected to the lower end of the window body 7.
[0042] The motor 8 is the power source of the outward-turning window structure. The motor 8 is connected to the gear 9 through the transmission shaft 11, and the rotation of the motor 8 is converted into the rotation of the gear 9. The rack 10 is meshed with the gear 9. When the gear 9 rotates, the rack 10 moves accordingly, thereby driving the lower end of the window 7 to turn relative to the upper end, so as to realize the opening and closing of the window 7.
[0043] As an optional implementation, a sealing strip 12 is provided at the edge of the window sash of the window body 7 and / or the edge of the window frame.
[0044] When the window 7 is in a closed state, the window 7 and the sealing strip 12 fit tightly together to form an effective seal, thereby improving the heat preservation and sealing properties of the greenhouse.
[0045] As an optional embodiment, it further includes a first longitudinal beam 4, the number of the first longitudinal beam 4 is multiple, and the longitudinal beams 4 are arranged in parallel on the inner wall surface of the front slope outer steel frame 1 through the longitudinal beam frame;
[0046] It also includes a second longitudinal beam 5, which is in multiple numbers and arranged in parallel on the outer wall surface or the inner wall surface of the front slope inner layer steel frame 2;
[0047] It also includes reinforcing ribs 6, which are arranged between the front slope outer steel frame 1 and the rear slope steel frame 3.
[0048] The function of the first longitudinal beam 4 is to enhance the load-bearing capacity and stability of the front slope outer steel frame 1 .
[0049] The function of the second longitudinal beam 5 is to enhance the load-bearing capacity and stability of the front slope inner steel frame 2, so that the front slope inner steel frame 2 and the front slope outer steel frame 1 together form a stable double-layer outer steel frame structure, and at the same time can also support the thermal insulation quilt.
[0050] The function of the reinforcing ribs 6 is to enhance the overall stability and reliability of the greenhouse main structure and prevent the window 7 from being loosely closed.
[0051] As an optional embodiment, the thermal insulation blanket 13 is located outside the second longitudinal beam 5 .
[0052] The thermal insulation blanket 13 can cover the outside of the inner steel frame 2 of the front slope, providing a more reliable, effective, and low-failure thermal insulation layer, effectively improving the thermal insulation performance of the greenhouse and extending the service life of the thermal insulation blanket.
[0053] The outer steel frame 1 of the front slope is covered with a film to form a rain cover for the thermal insulation quilt 13, which plays a certain role in protecting the thermal insulation quilt 13 from moisture and freezing.
[0054] The thermal insulation quilt 13 can be rolled up manually or electrically, and the user can design it according to the use requirements. The manual rolling structure and the electric rolling structure adopt the existing technology, which will not be described in detail here.
[0055] As an optional implementation, it also includes a snow shaker 14, which is located in the middle of the front slope outer steel frame 1, and is connected to the front slope outer steel frame 1 through the first longitudinal beam 4 and the longitudinal beam frame to transmit vibration.
[0056] The snow shaker 14 is electrically connected to the control box 17 , and the specific circuit connection relationship between the two is known in the art and will not be described in detail herein.
[0057] When the snow shaker 14 vibrates, its vibration force will be transmitted to the outer steel frame 1 of the front slope through the first longitudinal beam 4 and the longitudinal beam frame. The snow shaking effect is good and the snow accumulated on the outer steel frame 1 of the front slope is effectively removed. The number of snow shakers is calculated according to the transmission distance and multiple ones can be set.
[0058] As an optional implementation, the sun-facing sides of the solar heat collection tank and the solar hot water bag are dark in color, and the openings are arranged upward.
[0059] Furthermore, the solar water collection tank and the solar water bag are directly placed on the base surface close to the rear slope steel frame 3 .
[0060] The dark surface of solar heat collection tanks and solar hot water bags can better absorb sunlight and improve heat collection efficiency.
[0061] As an optional implementation, the solar water heating curtain and / or the solar water heating panel 15 are hung on the inner wall surface of the rear slope steel frame 3 .
[0062] Furthermore, the solar water heating curtain and / or the solar water heating panel 15 are suspended on the inner wall surface of the rear slope steel frame 3 through the suspension member 16 .
[0063] The solar water heating curtain and / or solar water heating panel 15 collect and store the solar heat energy absorbed during the day through flowing liquid, and release the heat into the greenhouse at night or when needed to keep the temperature of the greenhouse stable.
[0064] As an optional embodiment, the solar thermal storage panel is a plate-shaped structure with heat storage function, which is directly placed on the rear wall base. The solar thermal storage panel can collect and store solar heat absorbed during the day, and then release this heat into the greenhouse at night or when needed to keep the temperature of the greenhouse stable.
[0065] It should be noted that the solar water collection tank, the solar water bag, the solar water curtain, the solar heat storage panel and the solar water heating panel 15 all adopt the existing technology, which will not be described in detail here.
[0066] As an optional implementation, the front slope outer steel frame 1, the front slope inner steel frame 2 and the rear slope steel frame 3 are all arc-shaped structures, the front slope outer steel frame 1 is located outside the front slope inner steel frame 2, and the lengths of the front slope outer steel frame 1 and the front slope inner steel frame 2 are both greater than the length of the rear slope steel frame 3.
[0067] The front slope outer steel frame 1 and the front slope inner steel frame 2 are both arc-shaped structures, and the front slope outer steel frame 1 is located outside the front slope inner steel frame 2. The double-layer front slope steel frame formed by the front slope outer steel frame 1 and the front slope inner steel frame 2 not only improves the stability of the structure, but also enhances the load-bearing capacity of the greenhouse. At the same time, the front slope outer steel frame 1 and the front slope inner steel frame 2 are as close to an upright state as possible, so that the lighting surface of the front slope forms a vertical irradiation with the sunlight in winter, maximally captures the winter sunlight, and improves the light level and temperature in the greenhouse.
[0068] As an optional implementation, the inner angle formed by the front slope outer steel frame 1 and the front slope inner steel frame 2 with the base surface is smaller than the inner angle formed by the rear slope steel frame 3 with the base surface.
[0069] The lengths of the front slope outer steel frame 1 and the front slope inner steel frame 2 are both greater than the length of the rear slope steel frame 3, and the inner angles formed by the front slope outer steel frame 1 and the front slope inner steel frame 2 and the base surface are smaller than the inner angles formed by the rear slope steel frame 3 and the base surface, so that the main structure of the greenhouse forms a high front and low back shape, which helps to maximize lighting and heat storage in winter and improve the temperature and humidity in the greenhouse. In late spring, summer, and early autumn, the lighting and heat storage can be controlled by blocking the thermal insulation quilt 13 to provide a suitable environment for the growth of vegetables.
[0070] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.
[0071] In the description of the present utility model, it should be noted that, unless otherwise specified, "multiple" means two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0072] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "an example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0074] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A multifunctional cold-region double-layer greenhouse main structure, characterized in that: It comprises a front slope outer steel frame (1), a front slope inner steel frame (2), a rear slope steel frame (3), a solar heat collection structure, a heat preservation blanket (13), an outward-turning window structure, a temperature sensor and a control box (17); The lower end of the front slope outer steel frame (1) is connected to the base surface, and the upper end of the front slope outer steel frame (1) is connected to the upper end of the rear slope steel frame (3) and then continues to bend and extend, so that a space for installing the outward-turning window structure is formed between the extension part (101) of the front slope outer steel frame (1) and the rear slope steel frame (3); The lower end of the front slope inner steel frame (2) is connected to the base surface, the upper end of the front slope inner steel frame (2) is connected to the rear slope steel frame (3), and the fixed end of the thermal insulation quilt (13) is arranged at the connection between the front slope inner steel frame (2) and the rear slope steel frame (3); The temperature sensing probe is used to detect the temperature in the greenhouse; the outward-turning window structure and the temperature sensing probe are electrically connected to the control box (17) respectively; The solar heat collection structure is arranged close to the rear slope steel frame (3), and the solar heat collection structure comprises any one or any combination of a solar heat collection tank, a solar hot water bag, a solar hot water curtain or a solar hot water panel (15), or a solar heat storage panel.
2. The multifunctional cold region double-layer greenhouse main structure according to claim 1 is characterized in that: The outward-folding window structure comprises a window body (7), a motor (8), a transmission shaft (11), a gear (9) and a rack (10); the upper end of the window body (7) is rotatably connected to the extension portion (101); the motor (8) is arranged on the inner wall surface of the rear slope steel frame (3); the motor (8) is transmission-connected to the transmission shaft (11); the transmission shaft (11) extends along the length direction of the window body (7); the gear (9) is sleeved on the transmission shaft (11) along its axial direction, and the number of the gears (9) is plural; the rack (10) is meshed with the gears (9) in a one-to-one correspondence, and the fixed end of the rack (10) is hingedly connected to the lower end of the window body (7).
3. The multifunctional cold region double-layer greenhouse main structure according to claim 1 is characterized in that: It also includes a first longitudinal beam (4), wherein the first longitudinal beam (4) is in plurality and is arranged in parallel on the inner wall surface of the front slope outer layer steel frame (1) through a longitudinal beam frame; It also includes a second longitudinal beam (5), wherein the number of the second longitudinal beams (5) is plural and they are arranged in parallel on the front slope inner layer steel frame (2); It also includes a reinforcing rib (6), wherein the reinforcing rib (6) is arranged between the front slope outer layer steel frame (1) and the rear slope steel frame (3).
4. The multifunctional cold region double-layer greenhouse main structure according to claim 3 is characterized in that: The thermal insulation quilt (13) is located above the inner steel frame (2), and the front slope outer steel frame (1) is coated with a film to form a rain cover for the thermal insulation quilt (13).
5. The multifunctional cold region double-layer greenhouse main structure according to claim 3 is characterized in that: It also includes a snow shaker (14), which is located on the inner side of the middle part of the front slope outer steel frame (1) and is connected to the front slope outer steel frame (1) through the first longitudinal beam (4) and the longitudinal beam frame to transmit vibration.
6. The multifunctional cold region double-layer greenhouse main structure according to claim 1 is characterized in that: The sun-facing surfaces of the solar heat collecting tank and the solar hot water bag are dark in color, and the openings are arranged upward.
7. The multifunctional cold region double-layer greenhouse main structure according to claim 1 is characterized in that: The solar water heating curtain and / or the solar water heating panel (15) are suspended on the inner wall surface of the rear slope steel frame (3).
8. The multifunctional cold region double-layer greenhouse main structure according to claim 1 is characterized in that: The front slope outer steel frame (1), the front slope inner steel frame (2) and the rear slope steel frame (3) are all arc-shaped structures. The front slope outer steel frame (1) is located outside the front slope inner steel frame (2), and the lengths of the front slope outer steel frame (1) and the front slope inner steel frame (2) are both greater than the length of the rear slope steel frame (3).
9. The multifunctional cold region double-layer greenhouse main structure according to claim 1 is characterized in that: The inner angle formed by the front slope outer steel frame (1) and the front slope inner steel frame (2) and the base surface is smaller than the inner angle formed by the rear slope steel frame (3) and the base surface.