Full-biodegradable environment-friendly heat-preservation mulching film

Abstract

The utility model provides a full-biodegradation environment-friendly heat preservation mulching film, and belongs to the technical field of mulching film technologies. The full-biodegradable environment-friendly heat preservation mulching film comprises a mulching film body and a winding assembly, an opening is formed in the outer wall of the mulching film body, an opening and tearing film is arranged in the opening, the mulching film body and the opening and tearing film are both wound around the outer wall of the winding assembly, and the winding assembly comprises a reel, a sleeve and a baffle. The two ends of the reel are rotationally connected with sleeves respectively, the adjacent ends of the two sleeves are sleeved with baffles respectively, the two baffles are parallel to each other, the opening and tearing film comprises a transverse strip-shaped film belt and a plurality of first angle belts, the outer wall of the transverse strip-shaped film belt is connected with the first angle belts, and the outer wall of the transverse strip-shaped film belt is connected with the second angle belts. One end of each first angle belt is connected with the inner wall of the opening, the tearing film comprises a longitudinal strip-shaped film belt and a plurality of second angle belts, and the outer wall of the longitudinal strip-shaped film belt is connected with the second angle belts.

Description

Technical Field

[0001] The utility model relates to the technical field of ground films, in particular to a fully biodegradable, environment-friendly, thermal insulation ground film. Background Art

[0002] At present, biodegradable mulch has come into being along with the development of biodegradable plastics. Compared with traditional ordinary polyethylene mulch, its main advantage is that the mulch loses its functions of warming and retaining moisture, and decomposes into small molecules such as water and carbon dioxide after use, thereby preventing residual film from polluting farmland soil. The physical and chemical properties of the biodegradable mulch material itself determine its poor tensile strength, which makes it impossible to carry out mechanized mulching operations in agricultural areas where mechanical operations are mainly carried out. At present, the rupture time and degradation controllability of biodegradable mulch are poor, and the warming and moisture retention function is poor, which makes it difficult to meet the needs of different climatic conditions and crop growth. After searching, a Chinese patent with the authorization announcement number CN213548726U discloses a composite environmentally friendly controllable fully biodegradable mulch, which includes a biodegradable mulch layer (1), a water-retaining layer (2) and a composite functional layer (3) distributed from top to bottom. The biodegradable mulch layer (1), the water-retaining layer (2) and the composite functional layer (3) are all bonded by degradable glue, and the composite functional layer (3) is a herbicide layer (4) and / or a fertilizer layer (5). The advantages of the utility model are: 1. The fully biodegradable mulch is a plastic film composed of a substance that can be completely decomposed by microorganisms. The substance is mainly derived from starch, cellulose, chitosan and other polysaccharide natural materials. The final products of its degradation are carbon dioxide and water, which can be completely absorbed by nature and will not cause secondary pollution to the environment.

[0003] However, in actual use of this solution, the biodegradable mulch layer, the water-retaining layer and the composite functional layer are all closed structures. Once new seedlings of vegetation emerge, the mulch needs to be torn in the corresponding area to provide space for the growth of the new seedlings. However, this tearing method is prone to large-scale cracks in the mulch, and the soil of the new seedlings will be exposed to the outside, thereby losing its heat-insulating function. Secondly, the mulch in this solution lacks facilities for winding, which makes it inconvenient to use when laying the film.

[0004] Therefore, we have made improvements to this problem and proposed a fully biodegradable and environmentally friendly thermal insulation film. Utility Model Content

[0005] In order to solve the problem that the openings of existing ground films are prone to large-scale cracking, the utility model provides a fully biodegradable and environmentally friendly thermal insulation ground film.

[0006] The utility model is achieved in this way:

[0007] A fully biodegradable, environmentally friendly, thermal insulation ground film comprises a ground film body and a winding assembly. An opening is arranged on the outer wall of the ground film body, and a tearing film is arranged inside the opening. The ground film body and the tearing film are both wound on the outer wall of the winding assembly. The winding assembly comprises a reel, a sleeve and a baffle. The two ends of the reel are respectively rotatably connected to the sleeve, and the adjacent ends of the two sleeves are respectively mounted with baffles, and the two baffles are parallel to each other.

[0008] Furthermore, the tearing film includes a transverse strip film band and a plurality of first corner bands, the outer wall of the transverse strip film band is connected to the plurality of first corner bands, and one end of the plurality of first corner bands is connected to the inner wall of the opening.

[0009] The beneficial effect of adopting the above further scheme is that by connecting the transverse strip film band and the first corner band, the tear film forms a transverse structure, and by pulling the transverse strip film band, the first corner band is broken, causing the opening to open, thereby providing growth space for new vegetation seedlings in the same straight line.

[0010] Furthermore, the tearing film includes a longitudinal strip film band and a plurality of second corner bands, the outer wall of the longitudinal strip film band is connected to the plurality of second corner bands, and one end of the plurality of second corner bands is connected to the inner wall of the opening.

[0011] The beneficial effect of adopting the above further scheme is that by connecting the longitudinal strip film band and the second corner band, the tear film forms a longitudinal arrangement structure, and by pulling the longitudinal strip film band, the second corner band is broken, causing the opening to open, thereby providing growth space for the parallel arranged vegetation seedlings.

[0012] Furthermore, the tearing film includes a disc-shaped film strip and a plurality of third corner strips, the outer wall of the disc-shaped film strip is connected to the plurality of third corner strips, and one end of the plurality of third corner strips is connected to the inner wall of the opening.

[0013] The beneficial effect of adopting the above further scheme is that by connecting the circular film strip and the third corner strip, the torn film forms a plurality of circular hole-shaped arrangement structures, and by pressing the circular film strip, the third corner strip is broken, causing the opening to open, thereby providing growth space for the point-distributed new vegetation seedlings.

[0014] Furthermore, a plurality of the third angle bands are distributed in a cross shape.

[0015] The beneficial effect of adopting the above further solution is that by utilizing the relationship of the position distribution of the third corner band, it is easier to separate the disc-shaped film band from the opening.

[0016] Furthermore, the mulch body includes a biodegradable mulch layer, a heat-insulating layer, an organic fertilizer layer and a herbicide layer. The bottom of the biodegradable mulch layer is coated with an organic fertilizer layer and a herbicide layer, respectively, and the organic fertilizer layer is close to the side of the opening.

[0017] The beneficial effect of adopting the above further scheme is that by applying the organic fertilizer layer and the herbicide layer, it can provide nutrients to the new seedlings and have a weed control effect, and the position of the organic fertilizer layer close to the side of the opening makes it easier for the new seedlings to absorb nutrients.

[0018] Furthermore, the top of the biodegradable mulch film layer is adhered to the thermal insulation layer.

[0019] The beneficial effect of adopting the above further scheme is that, through the adhesion use of the thermal insulation layer, the heat loss is reduced, thereby improving the thermal insulation effect of the ground film.

[0020] Furthermore, the shapes of the openings are respectively set to be transverse strips, longitudinal strips and circular holes.

[0021] The beneficial effect of adopting the above further solution is that by setting the openings to different shapes, it is convenient to connect tearable films of different shapes.

[0022] Furthermore, adjacent sides of the two baffles are respectively in contact with the outer wall of the ground membrane body.

[0023] The beneficial effect of adopting the above further solution is that the wound ground film is kept flush by utilizing the positional relationship between the baffle and the ground film body.

[0024] The beneficial effects of the utility model are as follows: by pulling and tearing the film at openings at different positions, it can provide growth space for new vegetation seedlings at different positions, and by breaking the corner bands at different positions, large-scale cracking of the ground film can be avoided. Secondly, by connecting and using the winding assembly, it is more convenient to lay the ground film. The connecting sleeve is rotated at both ends of the reel, so that when the ground film body is pulled, it can rotate with the sleeve, thereby facilitating the ground film laying operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1A three-dimensional schematic diagram of a fully biodegradable environmentally friendly thermal insulation ground film provided by the utility model;

[0027] Figure 2 A schematic diagram of a first embodiment of a fully biodegradable environmentally friendly thermal insulation ground film provided by the utility model;

[0028] Figure 3 A schematic diagram of a second embodiment of a tearing film of a fully biodegradable environmentally friendly thermal insulation film provided by the utility model;

[0029] Figure 4 A schematic diagram of a third embodiment of a tearing film of a fully biodegradable environmentally friendly thermal insulation film provided by the utility model;

[0030] Figure 5 A schematic diagram of a winding assembly of a fully biodegradable, environmentally friendly, thermal insulation ground film provided by the utility model;

[0031] Figure 6 A cross-sectional view of a mulch film body of a fully biodegradable, environmentally friendly, thermal insulation mulch film provided by the utility model.

[0032] In the figure: 100, ground film body; 1001, biodegradable ground film layer; 1002, thermal insulation layer; 1003, organic fertilizer layer; 1004, herbicide layer; 200, winding assembly; 2001, reel; 2002, sleeve; 2003, baffle; 300, tearing film; 300101, horizontal strip film tape; 300102, first corner tape; 300201, longitudinal strip film tape; 300202, second corner tape; 300301, disc-shaped film tape; 300302, third corner tape. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-Figure 6 The utility model provides a technical solution: a fully biodegradable environmentally friendly thermal insulation ground film, comprising a ground film body 100 and a winding assembly 200, the outer wall of the ground film body 100 is provided with an opening, and a tearing film 300 is provided inside the opening, the ground film body 100 and the tearing film 300 are both wound on the outer wall of the winding assembly 200, the winding assembly 200 comprises a reel 2001, a sleeve 2002 and a baffle 2003, the two ends of the reel 2001 are respectively rotatably connected to the sleeve 2002, the adjacent ends of the two sleeves 2002 are respectively covered with baffles 2003, and the two baffles 2003 are respectively provided. 003 are parallel to each other, and by pulling the tear film 300 at the openings at different positions, it can provide growth space for new vegetation seedlings at different positions, and by breaking the corner bands at different positions, it can avoid large-scale cracking of the ground film. Secondly, through the connection and use of the winding assembly 200, it is more convenient to lay the ground film. The connecting sleeve 2002 is rotated at both ends of the reel 2001, so that when the ground film body 100 is pulled, it can rotate with the sleeve 2002, thereby facilitating the ground film laying operation.

[0036] Embodiment 1

[0037] See also Figure 2 The tearing film 300 includes a transverse film strip 300101 and a plurality of first corner strips 300102. The outer wall of the transverse film strip 300101 is connected to the plurality of first corner strips 300102. One end of the plurality of first corner strips 300102 is connected to the inner wall of the opening. The transverse film strip 300101 is connected to the first corner strip 300102 to form a transverse structure. The first corner strip 300102 is broken by pulling the transverse film strip 300101, thereby opening the opening to provide growth space for new vegetation seedlings in the same straight line.

[0038] Embodiment 2

[0039] See also Figure 3 The tearing film 300 includes a longitudinal strip film band 300201 and a plurality of second corner bands 300202. The outer wall of the longitudinal strip film band 300201 is connected to the plurality of second corner bands 300202. One end of the plurality of second corner bands 300202 is connected to the inner wall of the opening. The longitudinal strip film band 300201 is connected to the second corner bands 300202 to form a longitudinal arrangement structure. By pulling the longitudinal strip film band 300201, the second corner bands 300202 are broken, causing the opening to open, thereby providing growth space for the parallel arranged new vegetation seedlings.

[0040] Embodiment 3

[0041] See also Figure 4The tearing film 300 includes a circular film band 300301 and a plurality of third corner bands 300302. The outer wall of the circular film band 300301 is connected to the plurality of third corner bands 300302. One end of the plurality of third corner bands 300302 is connected to the inner wall of the opening. The circular film band 300301 is connected to the third corner bands 300302 to form a plurality of circular hole arrangement structures. The circular film band 300301 is pressed to break the third corner bands 300302, thereby opening the opening to provide growth space for the point-distributed new vegetation seedlings. The plurality of third corner bands 300302 are distributed in a cross shape. By utilizing the position distribution relationship of the third corner bands 300302, it is more convenient to separate the circular film band 300301 from the opening.

[0042] As an embodiment of the utility model, further, the ground film body 100 includes a biodegradable ground film layer 1001, an insulation layer 1002, an organic fertilizer layer 1003 and a herbicide layer 1004, and the bottom of the biodegradable ground film layer 1001 is coated with an organic fertilizer layer 1003 and a herbicide layer 1004, respectively, and the organic fertilizer layer 1003 is close to the side of the opening, and the organic fertilizer layer 1003 and the herbicide layer 1004 are coated, so that it can provide nutrients to the new seedlings and have a weed control effect, and the position relationship of the organic fertilizer layer 1003 close to the side of the opening makes it easier for the new seedlings to grow. The top of the nutrient-absorbing and biodegradable ground film layer 1001 is adhered to the insulation layer 1002. The adhesion of the insulation layer 1002 reduces heat loss, thereby improving the insulation effect of the ground film. The shapes of the openings are respectively set to horizontal strips, longitudinal strips and circular holes. By setting the openings to different shapes, it is convenient to connect the tearing films 300 of different shapes. The adjacent sides of the two baffles 2003 are respectively fitted with the outer wall of the ground film body 100. By utilizing the positional relationship between the baffle 2003 and the ground film body 100, the wound ground film remains flush.

[0043] Specifically, the working principle of the fully biodegradable, environmentally friendly and thermal insulation mulch film is as follows: when in use, the tear film 300 is pulled at the openings at different positions to provide growth space for new vegetation seedlings at different positions, and the corner bands at different positions are broken to avoid large-scale cracking of the mulch film, wherein the tear film 300 is connected and used with the transverse strip film band 300101 and the first corner band 300102 to form a transverse structure, and the first corner band 300102 is broken by pulling the transverse strip film band 300101, so that the opening is opened, so as to provide growth space for new vegetation seedlings in the same straight line; the tear film 300 is connected and used with the longitudinal strip film band 300201 and the second corner band 300202 to form a longitudinal arrangement structure, and the second corner band 300202 is broken by pulling the longitudinal strip film band 300201, so that the opening is opened, so as to provide growth space for new vegetation seedlings arranged in parallel. Provide growth space; by connecting the circular film strip 300301 and the third corner strip 300302, the tear film 300 forms a plurality of circular hole-shaped arrangement structures, and by pressing the circular film strip 300301, the third corner strip 300302 is broken, prompting the opening to open, so as to provide growth space for the point-distributed new vegetation seedlings, and by utilizing the position distribution relationship of the third corner strip 300302, it is more convenient to separate the circular film strip 300301 from the opening. Secondly, by connecting and using the winding assembly 200, it is more convenient to lay the ground film. The connecting sleeve 2002 is rotated at both ends of the reel 2001, so that when the ground film body 100 is pulled, it can rotate with the sleeve 2002, thereby facilitating the ground film laying operation, and by utilizing the position relationship between the baffle 2003 and the ground film body 100, the wound ground film is kept flush.

[0044] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A fully biodegradable environmentally friendly thermal insulation ground film, comprising a ground film body (100) and a winding assembly (200), characterized in that: The outer wall of the ground film body (100) is provided with an opening, and a tearing film (300) is provided inside the opening. The ground film body (100) and the tearing film (300) are both wound on the outer wall of the winding assembly (200). The winding assembly (200) comprises a reel (2001), a sleeve (2002) and a baffle (2003). The two ends of the reel (2001) are respectively rotatably connected to the sleeve (2002), and the adjacent ends of the two sleeves (2002) are respectively mounted with baffles (2003), and the two baffles (2003) are parallel to each other.

2. The fully biodegradable environmentally friendly thermal insulation film according to claim 1 is characterized in that: The tearing film (300) comprises a transverse strip film band (300101) and a plurality of first corner bands (300102), wherein the outer wall of the transverse strip film band (300101) is connected to the plurality of first corner bands (300102), and one end of the plurality of first corner bands (300102) is connected to the inner wall of the opening.

3. The fully biodegradable environmentally friendly thermal insulation film according to claim 1 is characterized in that: The tearing film (300) comprises a longitudinal strip film band (300201) and a plurality of second corner bands (300202), wherein the outer wall of the longitudinal strip film band (300201) is connected to the plurality of second corner bands (300202), and one end of the plurality of second corner bands (300202) is connected to the inner wall of the opening.

4. The fully biodegradable environmentally friendly thermal insulation film according to claim 1 is characterized in that: The tearing film (300) comprises a circular film strip (300301) and a plurality of third corner strips (300302), wherein the outer wall of the circular film strip (300301) is connected to the plurality of third corner strips (300302), and one end of the plurality of third corner strips (300302) is connected to the inner wall of the opening.

5. The fully biodegradable environmentally friendly thermal insulation film according to claim 4 is characterized in that: The third angle bands (300302) are distributed in a cross shape.

6. The fully biodegradable environmentally friendly thermal insulation film according to claim 1 is characterized in that: The ground film body (100) comprises a biodegradable ground film layer (1001), a heat-insulating layer (1002), an organic fertilizer layer (1003) and a herbicide layer (1004); the bottom of the biodegradable ground film layer (1001) is coated with the organic fertilizer layer (1003) and the herbicide layer (1004), respectively, and the organic fertilizer layer (1003) is close to the side of the opening.

7. The fully biodegradable environmentally friendly thermal insulation film according to claim 6 is characterized in that: The top of the biodegradable ground film layer (1001) is adhered to the thermal insulation layer (1002).

8. The fully biodegradable environmentally friendly thermal insulation film according to claim 1 is characterized in that: The shapes of the openings are respectively set to be transverse strips, longitudinal strips and circular holes.

9. The fully biodegradable environmentally friendly thermal insulation film according to claim 1, characterized in that: Adjacent sides of the two baffles (2003) are respectively in contact with the outer wall of the ground membrane body (100).

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