Inflatable film heat preservation greenhouse

Abstract

The application belongs to the technical field of agricultural production equipment, and specifically discloses an air-filled film heat preservation greenhouse, which comprises a shed support and a heat preservation quilt installed outside the shed support, the inside of the shed support is provided with an air-filled heat preservation film, the air-filled heat preservation film comprises a film body and a framework, the shed support comprises a ground rail arranged on the ground, the framework is equidistantly installed outside the film body, and the bottom of the framework is fixedly provided with a first sliding block which is longitudinally and slidingly connected with the ground rail, the part of the film body between the adjacent two frameworks is a folding area, the outside of the top of the ground rail is provided with a clamping plate which can be transversely displaced, the clamping plate is located between the film body and the shed support, the clamping plate is provided with a clamping groove, and the clamping groove can fix the film body in the unfolded state by sleeving the framework from the outside to the inside in the transverse direction. The air-filled heat preservation film can be folded and stored by moving along the length direction of the greenhouse, the setting of the pull rope can prevent the film body from forming a large number of folds, the protection of the film body is high, and the folded film body is more regular.

Description

Technical Field

[0001] This invention relates to the field of agricultural production equipment technology; specifically, this invention relates to an inflatable membrane greenhouse. Background Technology

[0002] Inflatable insulating film is a highly effective and widely used technology for greenhouse insulation. It cleverly utilizes the principle that "air is an excellent insulation layer," significantly improving the insulation performance of greenhouses. Inflatable insulating film is typically made of two or three layers of high-performance plastic film (such as PO film, PE film, etc.) through high-frequency welding, forming a sealed air cavity between the films. A small air pump (fan) continuously injects air into the cavity, causing it to expand into a fixed, thick air cushion. This static air layer effectively blocks heat transfer from inside the greenhouse, thus providing significant insulation.

[0003] After being used in inflatable membrane greenhouses, the inflatable insulation film needs to be removed or stored when the temperature has reached the standard, or when it is necessary to avoid high temperature damage or to allow crops to receive more natural light and ventilation to make them stronger.

[0004] For example, Chinese patent application number 202320009260.X provides a biodegradable heat-insulating film for greenhouses. It uses a winding roller at the film end, a gear on the winding roller, and a rack on the greenhouse frame. A motor drives the winding roller to move circumferentially along the frame, and the gear rolls on the rack to wind up the inflatable film. While it can wind up the film for storage, it still has the following drawbacks: The insulation film is wound in a circumferential manner, and the winding rollers, motors, and other components make the greenhouse structure complex.

[0005] During the winding process of thermal insulation film, there is a radius difference between the inner and outer layers of the film. Forcibly winding the film can easily cause the inner and outer layers to wrap haphazardly, forming a large number of creases, which can easily damage the film.

[0006] If the film body and the winding roller deviate axially during the winding process, the winding roller will forcibly pull and tear the film body, which can easily damage it. Summary of the Invention

[0007] In view of this, the present invention provides an inflatable membrane insulation greenhouse, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0008] To achieve the aforementioned objectives, the present invention provides an inflatable membrane insulation greenhouse, comprising a greenhouse frame and an insulation blanket installed on the outside of the greenhouse frame. An inflatable insulation membrane is disposed inside the greenhouse frame, the inflatable insulation membrane comprising a membrane body and a frame. The greenhouse frame includes a ground track set on the ground. The frame is equidistantly installed on the outside of the membrane body, and a first slider is fixedly installed at the bottom of the frame. The first slider slides longitudinally with the ground track. The portion of the membrane body located between two adjacent frames is a folding area. A laterally movable locking plate is provided on the outer side of the top of the ground track. The locking plate is located between the membrane body and the greenhouse frame, and the locking plate has a locking groove. The locking groove fixes the membrane body in an unfolded state by laterally fitting the frame over the membrane body from the outside in.

[0009] Preferably, a positioning screw is fixedly installed on the frame, and a positioning nut is rotatably installed at the end of the clamping plate, the positioning nut being threadedly engaged with the positioning screw.

[0010] Preferably, an inner folding rod group is provided between two adjacent skeletons. The inner folding rod group is supported on the outside of the bottom of the membrane. When the inflatable heat-insulating membrane is folded, the inner folding rod group moves the membrane from the outside to the inside from the middle of the folding area.

[0011] Preferably, the inner folding rod assembly includes a second slider, a first folding rod, and a second folding rod. The second slider is fixedly disposed at the bottom of the membrane and located in the middle of the folding area. The opposite ends of the first folding rod and the second folding rod are rotatably mounted inside the outer end of the second slider, and the opposite ends of the first folding rod and the second folding rod are rotatably connected to the skeleton.

[0012] Preferably, the inner sides of the upper surfaces of the first folding rod and the second folding rod are located at the bottom of the membrane, and the outer sides of the upper surfaces of the first folding rod and the second folding rod are located at the outer side of the membrane. The lower surface of the card plate is attached to the outer side of the upper surfaces of the first folding rod and the second folding rod, and the inner side of the card plate is in close contact with the outer side of the membrane.

[0013] Preferably, the bottom of the second slider is provided with a sliding plate, which is longitudinally slidably mounted on the ground rail, and the second slider is laterally slidably mounted on the top of the sliding plate. An elastic telescopic rod is provided inside the outer end of the sliding plate, which provides an inward elastic force to the second slider.

[0014] Preferably, a pull rope is provided between the second sliders located on both sides of the same folding area, which is close to the top of the membrane body, for tightening the membrane body inward when the inflatable heat-insulating membrane is folded.

[0015] Preferably, the end of the pull rope passes through the second slider from top to bottom, the slide plate is provided with a storage cavity for storing the pull rope, and a tightening component is provided between the second slider and the slide plate, the tightening component being able to tighten the pull rope when the inflatable heat-insulating film is folded.

[0016] Preferably, the tightening assembly includes two toothed rollers, a gear, and teeth distributed in an inner and outer manner. Both toothed rollers are rotatably mounted inside the second slider. The end of the pull rope passes between the two toothed rollers from top to bottom. The two toothed rollers are respectively engaged on both sides of the pull rope. The gear is fixedly connected to the toothed roller located on the inner side. The teeth are disposed on the inner top wall of the slide plate.

[0017] Preferably, the bottom of the second slider is provided with a limiting plate that can slide laterally. The limiting plate has a strip groove. The bottom end of the pull rope passes through the strip groove. A limiting ball is fixedly provided at the bottom end of the pull rope. The outer diameter of the limiting ball is larger than the width of the strip groove. When the inflatable heat-insulating film is in the unfolded state, the elastic telescopic rod makes the limiting plate located at the innermost position of the slide plate, and the outer end of the strip groove abuts against the top of the limiting ball.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects: The inflatable heat-insulating film of the present invention can be folded by directly pushing along the length of the greenhouse, realizing the folding and storage function of the inflatable heat-insulating greenhouse. Compared with the existing technology of folding along the roof, the present invention is simpler to operate, more controllable, and has a simpler structure.

[0019] During the folding process, the inflatable heat-insulating film of the present invention can achieve symmetrical folding of each folding area, without turning outward or producing a large number of creases, making the folded state more regular and providing better protection for the film body. Attached Figure Description

[0020] The disclosure of this invention will become more apparent from the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle; Figure 3 For the present invention Figure 1 A schematic diagram of the structure of the insulation blanket (without visible insulation material). Figure 4 For the present invention Figure 3 Enlarged view at point B in the middle; Figure 5This is a schematic diagram of the shed support frame and the card plate after disassembly according to the present invention; Figure 6 For the present invention Figure 5 Enlarged view at point C; Figure 7 This is a schematic diagram showing the cooperation of the skeleton, first slider, second slider, and sliding plate of the present invention; Figure 8 For the present invention Figure 7 Enlarged view at point D; Figure 9 This is a schematic diagram showing the second slider, the first folding rod, and the second folding rod of the present invention after disassembly. Figure 10 This is a schematic diagram of the second slider and the pull rope of the present invention; Figure 11 This is a cross-sectional view of the sliding plate, the second slider, and the limiting plate of the present invention; Figure 12 For the present invention Figure 11 Enlarged view of point E in the middle.

[0021] Reference numerals: 1-Insulation blanket; 2-Membrane body; 3-Frame; 4-Ground rail; 5-First slider; 6-Folding area; 7-Clamping plate; 8-Clamping slot; 9-Positioning screw; 10-Positioning nut; 11-Second slider; 12-First folding rod; 13-Second folding rod; 14-Slide plate; 15-Elastic telescopic rod; 16-Pull rope; 17-Storage cavity; 18-Geared wheel; 19-Gear; 20-Tooth; 21-Limiting plate; 22-Strip groove; 23-Limiting ball; 24-Railway groove; 25-Circular hole; 26-Mounting groove; 27-Shaft. Detailed Implementation

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figures 1 to 6As shown, this embodiment provides an inflatable membrane insulation greenhouse, including a greenhouse frame and an insulation blanket 1 installed on the outside of the greenhouse frame. An inflatable insulation membrane is provided inside the greenhouse frame. The inflatable insulation membrane includes a membrane body 2 and a frame 3. The greenhouse frame includes a ground rail 4 set on the ground. The frame 3 is installed equidistantly on the outside of the membrane body 2, and a first slider 5 is fixedly installed at the bottom of the frame 3. The first slider 5 slides in the longitudinal direction with the ground rail 4. The part of the membrane body 2 located between two adjacent frames 3 is a folding area 6. A card plate 7 capable of lateral displacement is provided on the outer side of the top of the ground rail 4. The card plate 7 is located between the membrane body 2 and the greenhouse frame. A card groove 8 is provided on the card plate 7. The card groove 8 fixes the membrane body 2 in the unfolded state by fitting the frame 3 in the lateral direction from the outside to the inside.

[0024] like Figure 4 As shown, the membrane body 2 adopts an air-supported membrane structure with an integrated design. The frame 3 fully covers the outside of the membrane body 2 to improve its stability. The ground rail 4 is square-shaped, with track grooves 24 on both inner walls. The outer end of the first slider 5 is slidably positioned within the track groove 24. The first slider 5 supports the inflatable insulation membrane by connecting to the frame 3. The first slider 5 moves along the ground rail 4 to fold the inflatable insulation membrane shell to one end. When the inflatable insulation membrane unfolds, the clamping plate 7 moves inward, causing the clamping groove 8 to engage with the frame 3, thus fixing and securing the inflatable insulation membrane along its length and maintaining its stability in the unfolded state. Before folding the inflatable insulation membrane, the clamping plate 7 is moved outward to detach it from the frame 3.

[0025] like Figure 2 As shown, a positioning screw 9 is fixedly installed on the frame, and a positioning nut 10 is rotatably installed on the end of the clamping plate 7. The positioning nut 10 is threadedly engaged with the positioning screw 9. By simply rotating the positioning nut 10 clockwise or counterclockwise, the clamping plate 7 can be moved inward or outward through the positioning thread, thus fixing or detaching the clamping plate 7 from the frame 3.

[0026] like Figure 2 , Figure 7 and Figure 8 As shown, an inner folding rod group is provided between two adjacent skeletons 3. The inner folding rod group is supported on the outer side of the bottom of the membrane 2. When the inflatable heat-insulating membrane is folded, the inner folding rod group moves the membrane 2 from the outside to the inside from the middle of the folding area 6.

[0027] During the folding process of the membrane 2 in the folding area 6, the inner folding rod group pushes the bottom of the outer side of the membrane 2 inward, so that the two sides of the membrane 2 can actively fold inward. This not only avoids the membrane 2 from rubbing against the canopy support during movement after the two sides of the membrane 2 are folded outward, but also avoids irregular folding of the two sides of the membrane 2, which would result in a large number of creases. Thus, it not only protects the inflatable insulation membrane, but also makes the inflatable insulation membrane folded more neatly.

[0028] As one of the more specific embodiments of the inner folding rod assembly, the inner folding rod assembly includes a second slider 11, a first folding rod 12, and a second folding rod 13. The second slider 11 is fixedly disposed at the bottom of the membrane body 2 and located in the middle of the folding area 6. The opposite ends of the first folding rod 12 and the second folding rod 13 are rotatably mounted inside the outer end of the second slider 11. The opposite ends of the first folding rod 12 and the second folding rod 13 are rotatably connected to the skeleton 3.

[0029] The second slider 11 is fixedly connected to the bottom of the membrane body 2, which can ensure that the distance between the bottom of the inner membrane and the outer membrane of the membrane body 2 remains consistent. During the folding process of the inflatable heat-insulating membrane, the inner folding rod group can make both sides of the inner membrane and the outer membrane actively fold inward.

[0030] like Figure 8 and Figure 9 As shown, the upper surfaces of the second slider 11, the first folding rod 12, and the second folding rod 13 are flush. The inner and outer sides of the first folding rod 12 and the second folding rod 13 are also flush. Specifically, the opposite ends of the first folding rod 12 and the second folding rod 13 are provided with circular holes 25. The middle of the outer end of the second slider 11 is provided with a mounting groove 26. The middle of the mounting groove 26 is provided with a shaft 27. The opposite ends of the first folding rod 12 and the second folding rod 13 are located in the mounting groove 26, and the circular holes 25 are fitted onto the folding rods.

[0031] Optionally, the inner side of the upper surface of the first folding rod 12 and the second folding rod 13 is located at the bottom of the membrane body 2, and the outer side of the upper surface of the first folding rod 12 and the second folding rod 13 is located at the outer side of the membrane body 2. The lower surface of the clamping plate 7 is attached to the outer side of the upper surface of the first folding rod 12 and the second folding rod 13, and the inner side of the clamping plate 7 is in close contact with the outer side of the membrane body 2.

[0032] The first folding rod 12 and the opposite ends of the folding rod are rotatably connected to the opposite surfaces of the two skeletons 3, so that when the membrane 2 is folded to its limit in the folding area 6, the first folding rod 12 and the second folding rod 13 are parallel and in close contact. At this time, a space for accommodating the membrane 2 is formed between the two adjacent skeletons 3 through the first folding rod 12 and the second folding rod 13. On the one hand, the membrane 2 is in a loose state in this space; on the other hand, the two adjacent skeletons 3 do not contact each other, so that the inner membrane will not be squeezed after folding, thus playing a protective role for the membrane 2.

[0033] After the inflatable insulation film is unfolded, the film 2 is stretched taut by the frame 3. At this point, the clamping plate 7 is moved inward and attached to the surface of the outer film before inflation. The clamping plate 7 serves two purposes: firstly, it limits excessive pulling between the bottom of the outer side of the film 2 and the second slider 11 when the film 2 expands outward; secondly, it allows the inflated film 2 to adhere tightly to the frame, improving the airtightness of the space between the inflatable insulation film and the insulation blanket 1. This forms an outer air insulation layer, enhancing the insulation effect.

[0034] like Figure 2 , such as 4 and Figure 8 and Figure 12 As shown, a slide plate 14 is provided at the bottom of the second slider 11. The slide plate 14 is slidably mounted on the ground rail 4 in the longitudinal direction. The second slider 11 is slidably mounted on the top of the slide plate 14 in the transverse direction. An elastic telescopic rod 15 is provided inside the outer end of the slide plate 14. The elastic telescopic rod 15 provides an inward elastic force for the second slider 11.

[0035] Both ends of the slide plate 14 slide in conjunction with the track groove 24, which not only provides more stable support for the inflatable insulation film on the ground track 4, but also guides the lateral movement of the second slider 11, ensuring that the front and rear parts of the bottom of the film 2 in the folding area 6 are symmetrically folded, thus making the bottom of the inflatable insulation film folded inward more neatly.

[0036] When the inflatable insulation film is unfolded, the second slider 11 is located at the outer end of the slide plate 14, at which time the elastic telescopic rod 15 is compressed. When the inflatable insulation film is folded, the elastic telescopic rod 15 pushes the second slider 11 inward through its own reset process, causing the first folding rod 12 and the second folding rod 13 to rotate inward, which makes the folding operation of the inflatable insulation film easier.

[0037] like Figure 3 and Figure 4 As shown, a pull rope 16 is provided between the second sliders 11 on both sides of the same folding area 6, and is tightly attached to the top of the membrane body 2. This rope is used to tighten the membrane body 2 inward when the inflatable insulation membrane is folded. After the inflatable insulation membrane is folded, pulling the end of the pull rope 16 tightens the membrane body 2 inward, making the membrane body 2 in a regular state throughout its entire cross-section. This not only prevents the membrane body 2 from forming a large number of creases during folding, thus improving the regularity of the folding of the membrane body 2, but also prevents the membrane body 2 from being squeezed by the frame 3 after being folded arbitrarily, thus protecting the membrane body 2.

[0038] like Figure 7 and Figure 8 , Figures 10 to 12As shown, the end of the pull rope 16 passes through the second slider 11 from top to bottom. A storage cavity 17 for storing the pull rope 16 is provided inside the slide plate 14. A tightening assembly is provided between the second slider 11 and the slide plate 14. The tightening assembly can tighten the pull rope 16 when the inflatable insulation film is folded. By providing the tightening assembly, the tightening process of the pull rope 16 does not require manual operation when folding the inflatable insulation film, thus avoiding the inconvenience caused by the pull rope 16 needing to be led out from the area between the film body 2 and the insulation blanket 1.

[0039] As one relatively specific embodiment of the tightening assembly, the tightening assembly includes two toothed rollers 18 distributed inside and outside, a gear 19 and teeth 20. Both toothed rollers 18 are rotatably mounted inside the second slider 11. The end of the pull rope 16 passes between the two toothed rollers 18 from top to bottom. The two toothed rollers 18 are respectively engaged on both sides of the pull rope 16. The gear 19 is fixedly connected to the inner toothed roller 18. The teeth 20 are provided on the inner top wall of the slide plate 14.

[0040] The teeth 20 are positioned on the inward-facing portion of the inner top arm of the slide plate 14, ensuring that the insulation film folds first and is then tightened by the tightening component during the folding process. To improve the stability of the toothed roller 18, those skilled in the art can install a damping pad at the connection between the roller 18's shaft and the second slider 11 to increase the friction during the roller's rotation, thereby mitigating the possibility of misrotation. This is prior art and will not be elaborated upon here. The transmission ratio between the gear 19 and the teeth 20 can be determined by those skilled in the art based on the radius difference between the unfolded and retracted states of the membrane 2, to determine the difference in circumference of the pull rope 16 in the two states and the number of rotations of the toothed roller 18. This, combined with the displacement distance of the second slider 11, determines the number of teeth 20 and the gear 19. This is prior art and will not be elaborated upon here.

[0041] The teeth 20 are positioned on the inner top wall of the slide plate 14, so that when the pull rope 16 is stored in the storage cavity 17, the pull rope 16 will be concentrated on the inner bottom wall of the slide plate 14 under the action of gravity, thus not interfering with the operation of the tightening component. During the rotation of the toothed wheel 18 and its delivery of the pull rope 16 into the storage cavity 17, the second slider 11 moves inward on the slide plate 14, making the pull rope 16 more neatly laid out in the storage cavity and preventing it from tangling. During the folding of the inflatable insulation film, when the tightening component is not in operation, the pull rope 16 will exert downward pressure on the top of the film 2 under its own weight, making the folding of the film 2 more neat.

[0042] like Figures 10 to 12As shown, the bottom of the second slider 11 is provided with a limiting plate 21 that can slide laterally. A strip groove 22 is provided inside the limiting plate 21. The bottom end of the pull rope 16 passes through the strip groove 22. A limiting ball 23 is fixedly provided at the bottom end of the pull rope 16. The outer diameter of the limiting ball 23 is larger than the width of the strip groove 22. When the inflatable heat preservation film is in the unfolded state, the elastic telescopic rod 15 makes the limiting plate 21 located at the innermost position of the slide plate 14, and the outer end of the strip groove 22 abuts against the top of the limiting ball 23.

[0043] The engagement of the limiting ball 23 and the strip groove 22 prevents the pull rope 16 from being completely pulled out of the two toothed rollers 18. During the initial process of folding the inflatable insulation film, the elastic force of the elastic telescopic rod 15 keeps the outer end of the strip groove 22 abutting against the top of the limiting ball 23. In this state, the pull rope 16 is bent inward at the bottom and is clamped by the engagement of the limiting groove and the bottom of the second slider 11. The bottom end of the pull rope 16 will not exert a downward pulling force on the toothed rollers 18 due to its own weight, so that the pull rope 16 will not fall into the storage cavity 17 before the elastic telescopic rod 15 separates from the limiting plate 21. This ensures that the pull rope 16 remains in its initial state before the tightening component is activated.

[0044] Meanwhile, when the elastic telescopic rod 15 separates from the limiting plate 21, since the inflatable membrane is already in a relaxed state, the pull rope 16 is in a relaxed state under the action of gravity at the position passing through the top of the second slider 11. This state prevents the pull rope 16 from driving the toothed wheel 18 to rotate under the action of gravity, and the pull rope 16 will not actively fall into the storage cavity 17. Therefore, before the gear 19 contacts the teeth 20, the pull rope 16 can maintain its initial length, thereby ensuring that the tightening component can cooperate with the pull rope 16 to stably tighten the membrane 2 inward, and will not cause the membrane 2 to tear or fail to fold to the final state due to the malfunction of the pull rope 16. When the tightening component is activated, the toothed wheel 18 pushes the pull rope 16 downward. By squeezing the outer end of the strip groove 22, the pull rope 16 can push the limiting plate 21 outward, allowing the strip groove 22 to move outward, thus making it easier for the pull rope 16 to enter the storage cavity 17 downward.

[0045] The technical scope of this invention is not limited to the contents of the above specification. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the scope of this invention.

Claims

1. An inflatable membrane insulation greenhouse, comprising a greenhouse frame and an insulation blanket (1) installed on the outside of the greenhouse frame, wherein an inflatable insulation membrane is provided inside the greenhouse frame, characterized in that, The inflatable heat-insulating membrane includes a membrane body (2) and a frame (3). The canopy support includes a ground rail (4) set on the ground. The frame (3) is installed equidistantly on the outside of the membrane body (2). A first slider (5) is fixedly installed at the bottom of the frame (3). The first slider (5) slides in longitudinal direction with the ground rail (4). The part of the membrane body (2) between two adjacent frames (3) is a folding area (6). A card plate (7) capable of lateral displacement is provided on the outer side of the top of the ground rail (4). The card plate (7) is located between the membrane body (2) and the canopy support. A slot (8) is provided on the card plate (7). The slot (8) fixes the membrane body (2) in the unfolded state by fitting the frame (3) in the lateral direction from the outside to the inside. An inner folding rod group is provided between two adjacent skeletons (3). The inner folding rod group is supported on the outside of the bottom of the membrane (2). When the inflatable heat-insulating membrane is folded, the inner folding rod group moves the membrane (2) from the outside to the inside from the middle of the folding area (6). The inner folding rod assembly includes a second slider (11), a first folding rod (12), and a second folding rod (13). The second slider (11) is fixedly disposed at the bottom of the membrane (2) and located in the middle of the folding area (6). The opposite ends of the first folding rod (12) and the second folding rod (13) are rotatably mounted inside the outer end of the second slider (11). The opposite ends of the first folding rod (12) and the second folding rod (13) are rotatably connected to the skeleton (3). A pull rope (16) is provided between the second sliders (11) on both sides of the same folding area (6) and is close to the top of the membrane (2) for tightening the membrane (2) inward when the inflatable heat-insulating membrane is folded. The end of the pull rope (16) passes through the second slider (11) from top to bottom. The bottom of the second slider (11) is provided with a slide plate (14). The slide plate (14) is longitudinally slidably installed on the ground rail (4). The slide plate (14) is provided with a storage cavity (17) for storing the pull rope (16). A tightening component is provided between the second slider (11) and the slide plate (14). The tightening component can tighten the pull rope (16) when the inflatable heat-insulating film is folded.

2. The inflatable membrane greenhouse as described in claim 1, characterized in that, A positioning screw (9) is fixedly installed on the shed support, and a positioning nut (10) is rotatably installed on the end of the clamping plate (7). The positioning nut (10) is threadedly engaged with the positioning screw (9).

3. An inflatable membrane greenhouse as described in claim 1 or 2, characterized in that, The inner sides of the upper surfaces of the first folding rod (12) and the second folding rod (13) are located at the bottom of the membrane (2), and the outer sides of the upper surfaces of the first folding rod (12) and the second folding rod (13) are located on the outer side of the membrane (2). The lower surface of the card plate (7) is attached to the outer side of the upper surfaces of the first folding rod (12) and the second folding rod (13), and the inner side of the card plate (7) is in close contact with the outer side of the membrane (2).

4. The inflatable membrane insulation greenhouse as described in claim 3, characterized in that, The second slider (11) is slidably mounted on the top of the slide plate (14). An elastic telescopic rod (15) is provided inside the outer end of the slide plate (14), and the elastic telescopic rod (15) provides an inward elastic force to the second slider (11).

5. An inflatable membrane greenhouse as described in claim 1 or 4, characterized in that, The tightening assembly includes two toothed rollers (18) distributed inside and outside, a gear (19) and teeth (20). The two toothed rollers (18) are rotatably mounted inside the second slider (11). The end of the pull rope (16) passes between the two toothed rollers (18) from top to bottom. The two toothed rollers (18) are respectively engaged on both sides of the pull rope (16). The gear (19) is fixedly connected to the toothed roller (18) located on the inner side. The teeth (20) are provided on the inner top wall of the slide plate (14).

6. The inflatable membrane insulation greenhouse as described in claim 4, characterized in that, The bottom of the second slider (11) is provided with a limiting plate (21) that can slide laterally. A strip groove (22) is provided in the limiting plate (21). The bottom end of the pull rope (16) passes through the strip groove (22). A limiting ball (23) is fixedly provided at the bottom end of the pull rope (16). The outer diameter of the limiting ball (23) is larger than the width of the strip groove (22). When the inflatable heat-insulating film is in the unfolded state, the elastic telescopic rod (15) makes the limiting plate (21) located at the innermost position of the slide plate (14), and the outer end of the strip groove (22) abuts against the top of the limiting ball (23).

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