Degradable composite mulching film

Abstract

The utility model discloses a degradable composite mulching film, and particularly relates to the technical field of mulching films, the degradable composite mulching film comprises a mulching film body used for vegetable greenhouse planting, a plurality of air holes are formed in the mulching film body in a penetrating mode, and an adjusting mechanism used for adjusting opening and closing of the air holes is arranged outside the mulching film body; the adjusting mechanism comprises two adjusting films, the two adjusting films are both arranged at the top of the mulching film body and are symmetrically distributed about the central axis of the mulching film body, and the bottoms of the ends, away from each other, of the two adjusting films are both fixed to the top of the mulching film body. According to the utility model, one end of the adjusting film is not fixed, so that a worker can fold and adjust the adjusting film according to the environment temperature change, when the temperature is too low, the adjusting film can be folded to the air hole to shield the air hole to achieve the isolation and heat preservation effects, and meanwhile, the adjusting film can be folded to be far away from the air hole to ensure air circulation; therefore, the convenience and the practicability of the fertilizer applying and irrigating device can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ground films, in particular to a degradable composite ground film. Background Art

[0002] In order to prevent frost damage in winter, greenhouse vegetable planting often covers the soil surface with a layer of mulch before the seedlings of vegetable plants germinate. When the temperature rises in the next year, the mulch will be broken after use and difficult to clean. A large amount of manpower is required to carry out mulch operations. Even so, the residual film cannot be completely cleaned from the soil, resulting in the accumulation of residual film in the soil increasing year by year, which causes greenhouse soil pollution. The residual film will affect the germination of vegetable seeds and the absorption and utilization of water and fertilizer by vegetable plants, ultimately leading to a decrease in vegetable yields. Therefore, in order to solve the problem of soil pollution caused by mulch after use, promoting the use of degradable mulch is an effective means to solve the pollution of agricultural soil mulch. Under the decomposition of microorganisms, the degradable mulch can be directly buried in the soil for treatment.

[0003] As shown in the application document with the prior art publication number CN215530404U, it is composed of an oxidative biodegradable film layer and a modified starch-based biodegradable film layer, the oxidative biodegradable film layer is provided with a plurality of through holes, and the modified starch-based biodegradable film layer extends outward on both sides in the width direction and exceeds the oxidative biodegradable film layer to form a buried film belt. The composite ground film does not require manual poking of holes in the ground film, saving time and labor, and the ground film can be completely degraded, which improves the sustainability of agricultural development.

[0004] However, when the temperature of the through holes in the above technical solution is too low, the low temperature will affect the growth of plants through the through holes, affecting the absorption and transportation of nutrients by the plants, causing the growing parts to develop poorly or even die due to lack of nutrition, thereby affecting the use effect of the technical solution. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a degradable composite mulch film. By adjusting one end of the film to be unfixed, the staff can fold and adjust the film according to the change of ambient temperature. When the temperature is too low, the film can be folded to the pores for shielding to achieve the effect of isolation and heat preservation. At the same time, the film can also be folded away from the pores to ensure air circulation, so as to facilitate fertilization and irrigation, etc., thereby improving the convenience and practicality of the utility model to solve the problems arising from the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a degradable composite ground film, comprising a ground film body for vegetable greenhouse planting, a plurality of pores are opened through the ground film body, and an adjustment mechanism for opening and closing the pores is provided outside the ground film body;

[0007] The regulating mechanism includes two regulating membranes, both of which are arranged on the top of the ground membrane body, and the two regulating membranes are symmetrically distributed about the central axis of the ground membrane body. The bottoms of the two regulating membranes at one end away from each other are fixed together with the top of the ground membrane body. The two regulating membranes are arranged on the top of multiple pores. Through the movable setting of the regulating membranes, the staff can fold and adjust the regulating membranes according to changes in ambient temperature. When the temperature is too low, the regulating membranes can be folded to the pores for shielding to achieve the effect of isolation and heat preservation. At the same time, the regulating membranes can also be folded away from the pores to ensure air circulation, so as to facilitate fertilization and irrigation, thereby improving the convenience and practicality of the utility model.

[0008] In a preferred embodiment, a counterweight bar is installed on the top of the adjacent ends of the two adjusting membranes. The setting of the counterweight bar can increase the weight of the adjusting membrane, thereby ensuring the stability of the adjusting membrane and preventing the adjusting membrane from loosening and deviating.

[0009] In a preferred embodiment, movable membranes are provided at the bottom of both ends of the ground film body, and the ends of the two movable membranes that are close to each other are fixed together with the bottom of the ground film body. Through the provision of the movable membranes, the first insect repellent material layer and the second insect repellent material layer can be shielded and protected to avoid damage to the first insect repellent material layer and the second insect repellent material layer caused by bumps during transportation, thereby ensuring the integrity of the first insect repellent material layer and the second insect repellent material layer.

[0010] In a preferred embodiment, a degradable adhesive layer is provided on the top of the ends of the two movable membranes that are away from each other, and the movable membrane is fixed to the ground membrane body by the degradable adhesive layer. The provision of the degradable adhesive layer can enhance the connection stability between the movable membrane and the ground membrane body, and also facilitates the staff to tear open the movable membrane and unfold the first insect repellent material layer and the second insect repellent material layer for use.

[0011] In a preferred embodiment, a first insect repellent material layer is coated on the top of the movable membrane, a second insect repellent material layer is provided on the top of the first insect repellent material layer, and the second insect repellent material layer is coated on the bottom of the ground membrane body. By setting the first insect repellent material layer and the second insect repellent material layer, insects can be blocked and eliminated to prevent insects from causing damage to plants.

[0012] In a preferred embodiment, the multiple pores are evenly spaced apart. The arrangement of the multiple pores can facilitate workers to carry out fertilization or irrigation operations through the pores, while also ensuring air circulation and the growth of plants.

[0013] In a preferred embodiment, the ground membrane body, adjusting membrane, movable membrane and counterweight strip are all made of biodegradable materials. By using biodegradable materials to make the ground membrane body, adjusting membrane, movable membrane and counterweight strip, the environmental friendliness of the utility model can be improved, and it can be naturally degraded to avoid causing pollution.

[0014] Technical effects and advantages of the utility model:

[0015] 1. By setting one end of the adjusting film unfixed, the staff can fold and adjust the adjusting film according to the change of ambient temperature. When the temperature is too low, the adjusting film can be folded to the pores for shielding to achieve the effect of isolation and heat preservation. At the same time, the adjusting film can be folded away from the pores to ensure air circulation, so as to facilitate fertilization and irrigation, etc., thereby improving the convenience and practicality of the utility model;

[0016] 2. By setting the first insect repellent material layer and the second insect repellent material layer, insects can be disinfected and blocked to prevent insects from damaging the growth of plants and ensure the growth effect of plants.

[0017] 3. By using biodegradable materials to make the ground film body, the regulating film, the movable film and the counterweight strip, the environmental friendliness of the utility model can be improved, and the ground film can be naturally degraded to avoid pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 For the utility model Figure 1 Enlarged view of part A;

[0020] Figure 3 This is an exploded view of the main body of the ground membrane of the utility model;

[0021] Figure 4 It is a side view of the movable membrane of the utility model;

[0022] Figure 5 It is a schematic diagram of the adjusting film of the utility model after being folded.

[0023] The accompanying drawings are marked as follows: 1. ground film body; 2. air holes; 3. adjusting film; 4. counterweight strip; 5. movable film; 6. degradable adhesive layer; 7. first insect repellent material layer; 8. second insect repellent material layer. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Refer to the instruction manual Figure 1-5 The utility model provides a degradable composite ground film, comprising a ground film body 1 for vegetable greenhouse planting, wherein a plurality of pores 2 are formed through the ground film body 1, and an adjusting mechanism for opening and closing the pores 2 is provided outside the ground film body 1;

[0026] like Figure 1 , 2 As shown in Figures 3 and 5, the adjusting mechanism includes two adjusting membranes 3, the two adjusting membranes 3 are both arranged on the top of the ground membrane body 1, the two adjusting membranes 3 are symmetrically distributed about the central axis of the ground membrane body 1, the bottoms of the ends of the two adjusting membranes 3 that are far away from each other are fixed to the top of the ground membrane body 1, the two adjusting membranes 3 are arranged on the tops of the multiple pores 2, and the tops of the ends of the two adjusting membranes 3 that are close to each other are installed with counterweight bars 4. By setting the counterweight bars 4, the weight of the adjusting membrane 3 can be increased, thereby ensuring the stability of the adjusting membrane 3 and avoiding the loosening and deviation of the adjusting membrane 3.

[0027] like Figure 1-5 As shown, movable films 5 are provided at the bottom of both ends of the ground film body 1, and the ends of the two movable films 5 that are close to each other are fixed together with the bottom of the ground film body 1. Through the arrangement of the movable films 5, the first insect repellent material layer 7 and the second insect repellent material layer 8 can be shielded and protected to avoid damage to the first insect repellent material layer 7 and the second insect repellent material layer 8 caused by collision during transportation, thereby ensuring the integrity of the first insect repellent material layer 7 and the second insect repellent material layer 8. A degradable adhesive layer 6 is provided at the top of the ends of the two movable films 5 that are away from each other, and the movable films 5 are bonded to the ground film body 1 through the degradable adhesive layer 6. Fixed together, the connection stability between the movable film 5 and the ground film body 1 can be enhanced by the arrangement of the degradable adhesive layer 6, and it is also convenient for the staff to tear open the movable film 5 and unfold the first insect repellent material layer 7 and the second insect repellent material layer 8 for use. The top of the movable film 5 is coated with a first insect repellent material layer 7, and the top of the first insect repellent material layer 7 is provided with a second insect repellent material layer 8, and the second insect repellent material layer 8 is coated on the bottom of the ground film body 1. Through the arrangement of the first insect repellent material layer 7 and the second insect repellent material layer 8, insects can be blocked and eliminated to prevent insects from damaging plants.

[0028] like Figure 1 , 3As shown in FIG5 , the multiple pores 2 are evenly spaced and arranged, and the arrangement of the multiple pores 2 can facilitate the staff to carry out fertilization or irrigation operations through the pores 2, and can also ensure air circulation and the growth of the plants.

[0029] like Figure 1-5 As shown, the ground membrane body 1, the adjusting membrane 3, the movable membrane 5 and the counterweight bar 4 are all made of biodegradable materials. By using biodegradable materials to make the ground membrane body 1, the adjusting membrane 3, the movable membrane 5 and the counterweight bar 4, the environmental friendliness of the utility model can be improved, and they can be naturally degraded to avoid causing pollution.

[0030] By setting multiple pores 2 on the ground film body 1, it is convenient for the staff to apply fertilizer or irrigation through the pores 2, and at the same time, air circulation can be guaranteed to ensure the growth of plants. Under different ambient temperatures, the circulation of the pores 2 will affect the growth of plants. For example, if the temperature is too low, it will affect the plant's absorption and transportation of nutrients, causing the growing part to be stunted or even die due to lack of nutrition. At this time, the adjusting film 3 can be flipped to the pores 2, and then the pores 2 can be sealed with the adjusting film 3 to achieve the effect of isolating and keeping the plants warm. The counterweight strip 4 can prevent the adjusting film 3 from loosening and shifting, thereby ensuring the stability of the adjusting film 3 when covering.

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A degradable composite mulch film, comprising a mulch film body (1) for vegetable greenhouse cultivation, characterized in that: A plurality of pores (2) are provided through the inside of the ground film body (1), and an adjustment mechanism for opening and closing the pores (2) is provided outside the ground film body (1); The regulating mechanism comprises two regulating films (3), both of which are arranged on the top of the ground film body (1), the two regulating films (3) are symmetrically distributed about the central axis of the ground film body (1), the bottoms of the ends of the two regulating films (3) that are far away from each other are fixed together with the top of the ground film body (1), and the two regulating films (3) are arranged on the top of the plurality of pores (2).

2. The degradable composite mulch film according to claim 1, characterized in that: A counterweight bar (4) is installed on the top of the adjacent ends of the two adjustment films (3).

3. The degradable composite mulch film according to claim 1, characterized in that: The bottoms of both ends of the ground membrane body (1) are provided with movable membranes (5), and the adjacent ends of the two movable membranes (5) are fixed together with the bottom of the ground membrane body (1).

4. The degradable composite mulch film according to claim 3, characterized in that: A degradable adhesive layer (6) is provided on the top of the ends of the two movable films (5) that are away from each other, and the movable films (5) are fixed to the ground film body (1) via the degradable adhesive layer (6).

5. The degradable composite mulch film according to claim 3, characterized in that: The top of the movable film (5) is coated with a first insect repellent material layer (7), the top of the first insect repellent material layer (7) is provided with a second insect repellent material layer (8), and the second insect repellent material layer (8) is coated on the bottom of the ground film body (1).

6. The degradable composite mulch film according to claim 1, characterized in that: The plurality of air holes (2) are evenly spaced and distributed.

7. The degradable composite mulch film according to claim 3, characterized in that: The ground film body (1), the regulating film (3), the movable film (5) and the counterweight bar (4) are all made of biodegradable materials.

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