CN201639948U - Roof Greening Grass Blanket - Google Patents

Abstract

The utility model provides a grass blanket for roof greening, which at least includes a net, a fiber layer, an organic layer, a liner and a lower net, and the organic layer is composed of light nutrient soil, water retaining agent and seeds sprinkled on the liner. Constructed, the layers are quilted together. Owing to adopting the wheat bran after fermenting and cooking, rice husk as the main component of light weight nutrient soil, the quality is lighter, greatly reduced the overall weight of the straw blanket, thereby guaranteed without increasing the unit volume weight of described nutrient soil Under certain circumstances, the thickness of the nutrient soil of the grass blanket can be increased, and the defect of the lack of planting soil on the roof can be overcome. The fiber layer containing straw, brown silk, and hemp silk can be used to lay the fiber layer, and the waste can be recycled. The layer plays a very good protective role, and naturally degrades to provide nutrients after the grass grows out. In addition, due to the use of a strong lower net, the performance of the roof carpet against bad weather is enhanced, and each layer is quilted Together, it makes the grass blanket easy to handle and lay.

Description

Roof Greening Grass Blanket

technical field

The utility model relates to a technology for greening and environmental protection, in particular to a straw carpet for greening roofs. the

Background technique

With the acceleration of industrialization and the increase of urban population density, environmental pollution such as waste gas, dust, and noise is increasing day by day, which seriously damages the physical and mental health of citizens. It is imperative to increase the urban greening area, but the urban ground greening area is limited, so it is necessary to develop three-dimensional greening, especially roof greening. At present, straw mats are mostly used for greening the roofs. However, the existing roof greening grass mats have the disadvantages of complex planting procedures, heavy weight, low strength, difficult handling, and difficult maintenance, so that the large-scale promotion and application of roof greening has been relatively limited. Big restrictions. the

Utility model content

In order to solve the above technical problems, the utility model provides a roof greening grass blanket, which has the characteristics of easy handling, simple and fast planting process, light weight, high strength, and easy maintenance. the

In order to achieve the above-mentioned technical purpose, the technical scheme adopted in the utility model is:

A kind of grass carpet for roof greening, at least includes an upper net, a fiber layer, an organic layer, a liner and a lower net that are arranged in sequence and quilted as one, wherein the organic layer includes nutrient soil, water-retaining agent and seeds, and the nutrient soil is Light nutritious soil, its mass density is not greater than 1/2 of the mass density of soil, and the thickness of the organic layer is not less than 10 mm. the

The light nutrient soil is usually mixed with 80% wheat bran and/or rice husk fermented product and 20% soil by mass ratio, and the wheat bran and/or rice husk processed product can be wheat bran and/or Rice husk The dried product of fermented and/or cooked rice. the

The fiber layer is usually laid by plant fiber bodies. the

The plant fiber body is usually laid flat to form the fiber layer. the

The plant fiber body can be straw, brown silk and/or hemp silk. the

The length of the straw, brown silk and/or hemp silk is usually not greater than 20 cm. the

The straw, palm and/or hemp can be soil-free and have a moisture content not greater than 10%. the

Both the upper and lower nets can be woven from plastic filaments, and the plastic filaments can be ordinary polypropylene plastic filaments, degradable polypropylene plastic filaments or reinforced polypropylene plastic filaments. the

The lower net is usually woven from reinforced polypropylene plastic wire, and the upper net is usually woven from ordinary polypropylene plastic wire or degradable polypropylene plastic wire. the

The lining layer can be non-woven fabric or lining paper. the

The beneficial effects obtained by the utility model are: because the fermented and boiled wheat bran and rice husk are used as the main components of the light nutrient soil, the weight is lighter, and the overall weight of the grass blanket is greatly reduced, thereby ensuring Without increasing the weight per unit volume of the nutrient soil, the thickness of the nutrient soil of the grass blanket can be increased, and the defect of lack of planting soil on the roof can be overcome. The fiber layer is paved with straw, brown silk, and hemp silk, and the waste is recycled. , it not only protects the lining layer sprinkled with seeds and nutrient soil before the grass grows, but also naturally degrades to provide nutrients after the grass grows. The weather resistance of the roof mat makes the mat easy to handle and lay by quilting the layers together. the

Description of drawings

Fig. 1 is the hierarchical structure schematic diagram of the utility model roof greening straw blanket. the

Detailed ways

Referring to Fig. 1, a kind of grass carpet for roof greening at least includes an upper net 1, a fiber layer 2, an organic layer 3, a liner 4 and a lower net 5 which are arranged in sequence and are quilted as one, wherein the organic layer includes nutrient soil, water retention agent and seeds, the nutrient soil is light nutrient soil, its mass density is not greater than 1/2 of the mass density of ordinary soil, and the thickness of the organic layer is not less than 10 mm, preferably 20-30 mm, and can also be 40 mm. mm, 50 mm or 80 mm. the

The light nutrient soil is usually mixed with 80% wheat bran and/or rice husk fermented product and 20% soil by mass ratio, and the wheat bran and/or rice husk processed product can be wheat bran and/or The dried product of rice hulls that have been fermented and/or cooked. The light nutrient soil is mainly composed of light wheat bran and rice husk processed products, and the processed products of wheat bran and rice husk are prepared by fermentation, cooking and drying of wheat bran and rice husk. The weight of the nutrient soil is lighter than that of ordinary soil. Therefore, without increasing the weight of the grass blanket, the thickness of the nutrient soil can be appropriately increased, thereby overcoming the defect that the roof lacks planting soil, and providing more nutrients for the cultivation of seeds. Good soil resources, for example, under the same area, the weight when the thickness of the nutrient soil described in the utility model is 10-20 centimeters is equivalent to the weight when the thickness of common soil is 5-7 centimeters. According to the different places where the straw blanket is used, the water-retaining agent can also be sown on the liner. For example, when the straw blanket is used in arid and rainless areas, or when the water spraying facilities of the straw blanket are not perfect, you can Appropriately add a water-retaining agent on the liner to keep the moisture in the surrounding environment of the grass blanket. In addition, when the environment where the grass blanket is located lacks fertilizers, fertilizers can be spread on the liner, and the seeds can be Choose different varieties according to the specific environment. The lining layer can adopt 60 grams or 70 grams of soft roll backing paper, and can also use non-woven fabric or water slurry paper. A small amount of fertilizer can also be sprinkled on the organic layer, which is beneficial to seed growth. the

The fiber layer is usually paved by the plant fiber body, and the plant fiber body usually forms the fiber layer in a tiled manner without compaction, and the operation is simple. the

The plant fiber body can be straw, brown silk and/or hemp silk, the length of the straw, brown silk and/or hemp silk is usually not more than 20 cm, and the recovered straw, brown silk and/or hemp silk are processed After being broken into 10-20 cm, it is not compacted and tiled to form a fiber layer. The fiber layer formed after crushing does not block the growth of grass seeds, but also facilitates the later degradation. the

The straw, brown silk and hemp silk contain a large amount of plant fibers, which make the fiber layer have the same strength as chemical fibers, but will not pollute the environment like chemical fibers, and can be naturally degraded. Lawns provide nutrients. Moreover, the straw, brown silk and hemp silk are all reuse products of agricultural waste, and have wide sources and low cost. the

Because the roof greening grass carpet is in the external environment, it often encounters severe weather such as strong winds and heavy rains. In order to make the grass carpet more solid and reliable, the lower net can be woven with high-strength plastic wire. High-strength polypropylene filaments can be used, in order to make the layers of the roof greening grass carpet relatively fixed and tightly combined, and to facilitate handling and laying. The layers are quilted together, and the layers of the straw blanket are machine quilted to facilitate the uniformity of the straw blanket, which is more environmentally friendly than bonding. the

When it is necessary to plant a grass carpet, first determine the roof area where the grass carpet needs to be laid, and roll the roof greening grass carpet of the corresponding area into a barrel suitable for transportation. That is, no other process is required, it is simple and quick, and then as long as sufficient moisture is provided for the grass blanket, strong and reliable new grass can be quickly grown in a short period of time. the

Claims (8)

1. roof greening grass blanket, at least comprise set gradually and quilting be online, fibrage, organic layer, the lining and off line of one, it is characterized in that described organic layer comprises nutrition soil, water-loss reducer and seed, described nutrition soil is lightweight nutrition soil, its mass density is not more than 1/2 of native mass density, and the thickness of described organic layer is not less than 10 millimeters.

2. roof greening grass blanket as claimed in claim 1 is characterized in that described fibrage is paved into by plant fiber bodies.

3. roof greening grass blanket as claimed in claim 2 is characterized in that described plant fiber bodies forms described fibrage in the mode of tiling.

4. roof greening grass blanket as claimed in claim 3 is characterized in that described plant fiber bodies is stalk, monofilament and/or flax silk.

5. roof greening grass blanket as claimed in claim 4 is characterized in that described stalk, monofilament and/or flax silk length are not more than 20 centimetres.

6. roof greening grass blanket as claimed in claim 5 is characterized in that described upper and lower net forms by the braiding of plastics silk, and described plastics silk is plain polypropylene plastics silk, degradable polypropylene plastics silk or reinforced polypropylene plastics silk.

7. as claim 1,2,3,4,5 or 6 described roof greening grass blankets, it is characterized in that described off line the braiding by reinforced polypropylene plastics silk forms, described online is formed by plain polypropylene plastics silk or the braiding of degradable polypropylene plastics silk.

8. roof greening grass blanket as claimed in claim 8 is characterized in that described lining is nonwoven or lining paper.

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