A multi-layer composite greenhouse wind-resistant and tensile-resistant film

Abstract

The utility model relates to the technical field of shed film, disclose a multilayer composite greenhouse wind -resistant tensile shed film, including support, shed film roll and protection subassembly, the shed film roll is installed on the surface of support, the protection subassembly is used for protecting the shed film roll, the protection subassembly includes the anti -tear layer of the shed film roll and carries out interlayer to stick tear -resistant layer and the adhesive layer that sticks. In the utility model, the shed film is protected through setting up protection subassembly, utilizes wear -resistant layer to resist external wear and tear, and the cross perpendicular reinforcing rib in tear -resistant layer disperses external force and passes through the through -hole buffer wind resistance, and the interlayer connection is strengthened with the array type concave -convex clamping structure adhesive layer, and the multilayer synergies are combined, effectively prevent the shed film from tearing, interlayer separation and external wear and tear when using outdoors due to strong wind and other external force, significantly improve the wind -resistant tensile performance and structural stability of shed film, prolong its service life.

Description

Technical Field

[0001] This utility model relates to the field of greenhouse film technology, and to a multi-layer composite greenhouse film that is wind-resistant and tensile-resistant. Background Technology

[0002] Multi-layer composite greenhouses are modern agricultural facilities that combine multi-layer planting technology with greenhouse structure. They utilize space through vertical stratification, improving land and resource utilization efficiency, while also possessing the environmental control function of a greenhouse. The greenhouse film is a special plastic film used for the construction of facility agriculture production, and its performance in terms of light transmittance, heat preservation, tensile strength, and aging resistance is superior to that of ordinary agricultural films.

[0003] During the use of greenhouse film, its overall protective properties are crucial. A search of existing technology (application number: CN202322322294.7) reveals "a high-insulation greenhouse film, comprising a wear-resistant layer, an air layer on the bottom surface of the wear-resistant layer, a bubble film layer on the bottom surface of the air layer, and an anti-ultraviolet layer on the bottom surface of the bubble film layer. In this invention, the wear-resistant layer resists wear and scratches, improving the lifespan of the greenhouse film; the air layer and bubble film layer provide heat insulation, preventing heat transfer from the inside of the film; the anti-ultraviolet layer effectively prevents ultraviolet radiation and oxidation; and the waterproof layer prevents moisture penetration into the film, preventing mold growth. Through this structure and method, the greenhouse film is less prone to damage during use and provides high insulation, preventing heat transfer and meeting various usage scenarios, thus improving its practicality."

[0004] Commonly used greenhouse films generally suffer from weak mechanical properties, poor wind and tensile strength, poor puncture and tear resistance, easy separation between layers, easy damage to edges, insufficient durability, short service life, and limited functionality, making it difficult to meet the needs of long-term stable protection and use. Therefore, those skilled in the art provide a multi-layer composite greenhouse wind and tensile resistant film to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-layer composite greenhouse film that is wind-resistant and tensile-resistant, thereby solving the problems mentioned in the background section of the prior art.

[0006] This utility model provides the following technical solution: a multi-layer composite greenhouse wind-resistant and tensile-resistant film, including a support frame, a film roll, and a protective component. The film roll is installed on the surface of the support frame, and the protective component is used to protect the film roll. The protective component includes a tear-resistant layer for preventing tearing of the film roll and an adhesive layer for interlayer bonding. The tear-resistant layer includes through holes and reinforcing ribs, with the through holes being formed inside the tear-resistant layer. The adhesive layer includes an upper protrusion and a lower protrusion, with the upper protrusion fixedly connected to the upper surface of the adhesive layer and the lower protrusion fixedly connected to the lower surface of the adhesive layer.

[0007] As a preferred embodiment of the above technical solution, the protective component further includes a wear-resistant layer, which is located on the outermost layer of the greenhouse film roll, and the tear-resistant layer is located on the inner side of the wear-resistant layer.

[0008] As a preferred embodiment of the above technical solution, the number of through holes is multiple and arranged in an array, the reinforcing ribs are fixedly connected to the interior of the tear-resistant layer, and the reinforcing ribs are arranged perpendicularly to the through holes in a cross shape.

[0009] As a preferred embodiment of the above technical solution, a protective layer is provided on the inner side of the tear-resistant layer, and an upper groove is formed on the side of the protective layer away from the tear-resistant layer.

[0010] As a preferred embodiment of the above technical solution, the adhesive layer is located inside the protective layer, and the upper protrusion engages with the inner wall of the upper groove.

[0011] As a preferred embodiment of the above technical solution, an inner layer is provided on the inner side of the adhesive layer, and a lower groove is formed on the side of the inner layer near the adhesive layer.

[0012] As a preferred embodiment of the above technical solution, the number of the lower groove and the lower protrusion are multiple sets and arranged in an array, and the lower protrusion is engaged with the inner wall of the lower groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this invention, protective components are used to protect the greenhouse film roll. The protective components of the tear-resistant layer and adhesive layer provide all-round protection for the greenhouse film roll. The cross-shaped vertically distributed reinforcing ribs and arrayed through holes in the tear-resistant layer work together to disperse the stress generated by external forces such as strong winds, buffer wind resistance, and improve the overall tensile and tear resistance performance, effectively preventing damage to the greenhouse film caused by localized stress concentration. The adhesive layer, through the arrayed interlocking structure of the upper protrusion and the upper groove of the protective layer, and the lower protrusion and the lower groove of the inner layer, greatly enhances the stability of the interlayer connection, solving the problems of easy separation and wrinkling between existing greenhouse film layers. Combined with the wear-resistant layer to resist external wear and the protective layer to reduce internal damage, it significantly improves the defects of existing greenhouse films that are thin and lack durability, extends the service life of the greenhouse film, and ensures that it continues to play a stable protective role in complex outdoor environments, effectively improving the practicality of the equipment. Attached Figure Description

[0015] Figure 1 A schematic diagram of the three-dimensional structure of a multi-layer composite greenhouse film that is wind-resistant and tensile-resistant;

[0016] Figure 2 This is a schematic diagram of the structure of a multi-layer composite greenhouse film roll that is wind-resistant and tensile-resistant.

[0017] Figure 3 This is a schematic diagram of the protective components in a multi-layer composite greenhouse wind-resistant and tensile-resistant film;

[0018] Figure 4 For a multi-layer composite greenhouse wind-resistant and tensile-resistant film Figure 3 A schematic diagram of the structure at point A;

[0019] Figure 5 This is a schematic diagram of the tear-resistant layer in a multi-layer composite greenhouse film that is wind-resistant and tensile-resistant.

[0020] Figure 6 For a multi-layer composite greenhouse wind-resistant and tensile-resistant film Figure 5 A schematic diagram of the structure at point B.

[0021] In the diagram: 1. Support frame; 2. Sheet film roll; 3. Protective components; 31. Wear-resistant layer; 32. Tear-resistant layer; 321. Through hole; 322. Reinforcing rib; 33. Protective layer; 331. Upper groove; 34. Adhesive layer; 341. Upper protrusion; 342. Lower protrusion; 35. Inner layer; 351. Lower groove. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please see Figures 1-6As shown, this utility model provides a technical solution: a multi-layer composite greenhouse wind-resistant and tensile-resistant film, including a support frame 1, a film roll 2, and a protective component 3. The film roll 2 is installed on the surface of the support frame 1, and the protective component 3 is used to protect the film roll 2. The protective component 3 includes a tear-resistant layer 32 for preventing tearing of the film roll 2 and an adhesive layer 34 for interlayer bonding. The tear-resistant layer 32 includes through holes 321 and reinforcing ribs 322. The through holes 321 are opened inside the tear-resistant layer 32. The adhesive layer 34 includes an upper protrusion 341 and a lower protrusion 342. The upper protrusion 341 is fixedly connected to the upper surface of the adhesive layer 34, and the lower protrusion 342 is fixedly connected to the lower surface of the adhesive layer 34. The tear-resistant layer 32 forms a force-bearing skeleton through the internally cross-shaped vertically arranged reinforcing ribs 322, which can evenly distribute external forces such as strong winds and tension, avoid local stress concentration, and the arrayed through holes 321 can buffer wind resistance impact, reduce the instantaneous stress on the film, improve the tear resistance and tensile strength of the film, and reduce the risk of damage.

[0024] As one implementation method in this embodiment, please refer to Figures 1-3 As shown, the protective component 3 also includes a wear-resistant layer 31, which is located on the outermost layer of the greenhouse film roll 2. The tear-resistant layer 32 is located on the inner side of the wear-resistant layer 31. The wear-resistant layer 31 directly resists external friction and ultraviolet erosion, reduces damage to the film surface, slows down the aging rate, and protects the inner layer 35 structure from external damage, thus extending the overall service life of the greenhouse film.

[0025] As one implementation method in this embodiment, please refer to Figures 1-6 As shown, the number of through holes 321 is multiple and arranged in an array. The reinforcing ribs 322 are fixedly connected to the inside of the tear-resistant layer 32. The reinforcing ribs 322 and the through holes 321 are arranged in a cross-shaped perpendicular arrangement. While dispersing external forces, the reinforcing ribs 322 can reduce direct frictional damage between the tear-resistant layer 32 and the adjacent protective layer 33 and adhesive layer 34, and avoid indirect interlayer damage caused by excessive local stress.

[0026] As one implementation method in this embodiment, please refer to Figures 1-4 As shown, a protective layer 33 is provided on the inner side of the tear-resistant layer 32. An upper groove 331 is provided on the side of the protective layer 33 away from the tear-resistant layer 32. The upper groove 331 serves as a connection and adaptation structure between the protective layer 33 and the adhesive layer 34. It precisely matches the upper protrusion 341 of the adhesive layer 34 to achieve engagement. The engagement enhances the adhesion between the protective layer 33 and the adhesive layer 34 and prevents relative sliding between the layers.

[0027] As one implementation method in this embodiment, please refer to Figures 1-4As shown, the adhesive layer 34 is located inside the protective layer 33. The upper protrusion 341 engages with the inner wall of the upper groove 331. The upper protrusion 341 is fixedly connected to the upper surface of the adhesive layer 34 and fits the upper groove 331. By embedding into the groove, a snap-fit ​​engagement is formed, breaking the single fixing mode of traditional bonding, greatly improving the connection strength between the adhesive layer 34 and the protective layer 33, and effectively resisting the tendency of external force peeling and interlayer separation.

[0028] As one implementation method in this embodiment, please refer to Figures 1-4 As shown, an inner layer 35 is provided on the inner side of the adhesive layer 34. A lower groove 351 is provided on the side of the inner layer 35 near the adhesive layer 34. The lower groove 351 can not only strengthen the interlocking effect between the inner layer 35 and the adhesive layer 34 and improve the interlayer adhesion, but also provide a buffer space for interlayer deformation when the greenhouse film is subjected to stress or temperature changes, so as to avoid interlayer cracking caused by thermal expansion and contraction or external force pulling.

[0029] As one implementation method in this embodiment, please refer to Figures 1-4 As shown, the number of lower grooves 351 and lower protrusions 342 are multiple sets arranged in an array. The lower protrusions 342 are engaged with the inner wall of the lower grooves 351. The lower protrusions 342 and lower grooves 351 are precisely engaged to form a two-way engagement and locking effect, which further strengthens the connection between the adhesive layer 34 and the inner layer 35 and solves the problem of easy wrinkling and detachment between existing greenhouse film layers.

[0030] Working principle: When the greenhouse film roll 2 is damaged by external factors, the cross-shaped vertical reinforcing ribs 322 in the tear-resistant layer 32 form a stress-bearing skeleton, which can evenly distribute the tensile force generated by strong winds to the entire film body, avoiding local stress concentration. The arrayed through holes 321 can buffer the impact of wind loads, reduce the instantaneous pressure of airflow on the film body, and reduce the tensile force brought by the film body's own weight. Together with the reinforcing ribs 322, the overall tear resistance limit is improved. The adhesive layer 34, through the arrayed interlocking structure of the upper protrusion 341 and the upper groove 331 of the protective layer 33, and the lower protrusion 342 and the lower groove 351 of the inner layer 35, greatly enhances the interlayer adhesion, avoids delamination and wrinkling caused by temperature changes and external force pulling, and ensures that the multi-layer structure is synergistically stressed. At the same time, the outermost wear-resistant layer 31 directly resists external friction, such as wind and sand impact and object collision, reducing damage to the film surface. The inner protective layer 33 isolates the tear-resistant layer 32 and the adhesive layer 34, preventing the reinforcing ribs 322 from wearing down other layers. When the greenhouse film has large-area damage, delamination or cracking, it should be removed and replaced in time. Before installing the greenhouse film, clean any sharp protrusions and burrs from the surface of the greenhouse frame to avoid scratching the film during installation. Cut the film according to the greenhouse size, leaving allowance for edge fixing. When cutting, avoid the dense area of ​​the tear-resistant layer 32 and reinforcing ribs 322 to prevent damage to the load-bearing frame. Unroll the cut film roll 2 and cover it onto the greenhouse frame with the abrasion-resistant layer 31 facing outwards and the inner layer 35 facing inwards, ensuring the film is flat and wrinkle-free to avoid uneven stress caused by wrinkles. Stretch the film to the appropriate tension, and then... Secure the other end and both sides of the film. During the securing process, continuously adjust the flatness of the film to ensure that the reinforcing rib 322 is aligned with the direction of the greenhouse frame. In addition, before encountering severe weather such as strong winds or heavy rain, check whether the fixing points of the film are loose and reinforce both ends of the film in time to prevent the edges from lifting and causing concentrated wind load. Regularly clean the dust and debris on the surface of the film to prevent the accumulation of materials from increasing the weight of the film and to maintain light transmission. If any minor damage is found on the surface of the film, repair it in time with special film tape to prevent the hole from expanding.

[0031] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A multi-layer composite greenhouse film with wind and tensile strength, characterized in that: It includes a support frame (1), a greenhouse film roll (2), and a protective assembly (3). The greenhouse film roll (2) is mounted on the surface of the support frame (1), and the protective assembly (3) is used to protect the greenhouse film roll (2). The protective component (3) includes a tear-resistant layer (32) for preventing the film roll (2) from tearing and an adhesive layer (34) for bonding the layers together. The tear-resistant layer (32) includes a through hole (321) and a reinforcing rib (322), wherein the through hole (321) is formed inside the tear-resistant layer (32); The adhesive layer (34) includes an upper protrusion (341) and a lower protrusion (342). The upper protrusion (341) is fixedly connected to the upper surface of the adhesive layer (34), and the lower protrusion (342) is fixedly connected to the lower surface of the adhesive layer (34).

2. The multi-layer composite greenhouse wind-resistant and tensile-resistant film according to claim 1, characterized in that: The protective component (3) also includes a wear-resistant layer (31), which is located on the outermost layer of the greenhouse film roll (2), and the tear-resistant layer (32) is located on the inner side of the wear-resistant layer (31).

3. The multi-layer composite greenhouse wind-resistant and tensile-resistant film according to claim 1, characterized in that: The number of through holes (321) is multiple and arranged in an array. The reinforcing ribs (322) are fixedly connected to the interior of the tear-resistant layer (32). The reinforcing ribs (322) and the through holes (321) are arranged in a cross-shaped perpendicular arrangement.

4. The multi-layer composite greenhouse wind-resistant and tensile-resistant film according to claim 1, characterized in that: A protective layer (33) is provided on the inner side of the tear-resistant layer (32), and an upper groove (331) is provided on the side of the protective layer (33) away from the tear-resistant layer (32).

5. The multi-layer composite greenhouse wind-resistant and tensile-resistant film according to claim 1, characterized in that: The adhesive layer (34) is located inside the protective layer (33), and the upper protrusion (341) is engaged with the inner wall of the upper groove (331).

6. The multi-layer composite greenhouse wind-resistant and tensile-resistant film according to claim 1, characterized in that: An inner layer (35) is provided on the inner side of the adhesive layer (34), and a lower groove (351) is provided on the side of the inner layer (35) near the adhesive layer (34).

7. The multi-layer composite greenhouse wind-resistant and tensile-resistant film according to claim 6, characterized in that: The number of the lower groove (351) and the lower protrusion (342) are multiple sets and arranged in an array. The lower protrusion (342) is engaged with the inner wall of the lower groove (351).

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