Natural grass and artificial grass mixed degradable lawn

Abstract

The utility model relates to a degradable lawn formed by mixing natural grass and artificial grass. The degradable lawn comprises an artificial lawn layer, a natural grass planting layer, a rubble layer and a plain soil layer which are arranged in sequence, the artificial turf layer comprises artificial grass yarns and a woven layer, the artificial grass yarns are woven and fixed above the woven layer and are distributed according to a rectangular array, and the artificial grass yarns and the woven layer are made of degradable materials; a drainage channel is arranged at the bottom, corresponding to the gravel layer, of the plain soil layer, and a water supply pipe is further arranged in the drainage channel and connected with an irrigation pipe used for lawn irrigation. The natural grass and artificial grass mixed degradable lawn integrates the advantages of an artificial lawn and a natural lawn, and the artificial grass yarns and the woven layer of the artificial lawn layer are made of degradable materials, so that the damage to the environment after the artificial lawn is damaged and replaced is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mixed turf, specifically to a biodegradable turf that is a mixture of natural grass and artificial grass. Background Technology

[0002] In some venues, such as football fields, turf is required. Turf is generally divided into artificial turf and natural turf. Natural turf, with its natural feel and growing environment, provides a good playing experience for football. However, natural turf is highly dependent on the climate and is easily affected by slippery conditions during the rainy season and degradation during the dry season. Artificial turf is highly adaptable to the environment and can be used year-round. However, compared to natural turf, artificial turf is relatively weaker in terms of performance; for example, its higher hardness may increase the risk of injury to athletes. Based on this, existing technology proposes a turf that mixes natural and artificial grass. Artificial grass fibers are embedded in the natural turf. By embedding artificial grass fibers, the poor durability of natural turf is compensated for, extending the turf's lifespan, improving its performance, and increasing its stability and adaptability, providing athletes with a more balanced playing experience.

[0003] To accommodate the growth of natural grass, artificial turf typically uses a mesh weaving method to form the base without a backing fabric for reinforcement. As a result, it is easily damaged during use and difficult to repair locally, requiring the entire turf to be replaced. Most existing artificial turf materials are not recyclable and are difficult or even non-biodegradable. Replaced or discarded artificial turf becomes waste and can only be used for landfill, impacting the ecological environment. Utility Model Content

[0004] To address the issue of generating large amounts of solid waste when replacing artificial and natural grass composite lawns, this invention provides a biodegradable lawn that combines natural and artificial grass. The artificial grass fibers and the woven base are both made of biodegradable materials, reducing environmental pollution.

[0005] The technical objective of this utility model is achieved through the following technical solution:

[0006] A biodegradable lawn composed of a mixture of natural grass and artificial grass includes an artificial turf layer, a natural grass planting layer, a gravel layer, and a soil layer arranged sequentially. The artificial turf layer includes artificial grass fibers and a woven layer. The artificial grass fibers are woven and fixed on top of the woven layer and distributed in a rectangular array. Both the artificial grass fibers and the woven layer are made of biodegradable materials. A drainage ditch is provided at the bottom of the soil layer corresponding to the gravel layer. A water supply pipe is also installed in the drainage ditch, and the water supply pipe is connected to an irrigation pipe for irrigating the lawn.

[0007] Furthermore, the upper width of the drainage ditch is greater than the bottom width, and the gravel layer fills the drainage ditch outside the water supply pipe.

[0008] Furthermore, the thickness of the natural grass planting layer is 25-30cm, and the thickness of the gravel layer above the soil layer is 10-15cm.

[0009] Furthermore, the woven layer of the artificial turf is also woven with cotton ropes used to reinforce the artificial grass fibers and the woven layer.

[0010] Furthermore, one end of the irrigation pipe is connected to the water supply pipe, and the other end extends upward to above the braided layer, where a water spray nozzle is installed.

[0011] Furthermore, one end of the irrigation pipe is connected to the water supply pipe, and the other end can be equipped with a lifting sprinkler pipe. A water spray head is installed at the upper end of the lifting sprinkler pipe. In the non-working state, the water spray head descends below the braided layer along with the lifting sprinkler pipe, and in the working state, the water spray head rises above the braided layer along with the lifting sprinkler pipe.

[0012] Furthermore, the lifting sprinkler includes a bottom outer tube and a movable inner tube movably installed inside the bottom outer tube. The water spray head is fixed inside the movable inner tube near the upper end and is connected to the irrigation pipe via a hose. A straw hat cup is also installed above the upper end of the lifting sprinkler. The bottom outer tube is pre-embedded in the natural grass planting layer, and the woven layer has round holes corresponding to the lifting sprinkler. In the non-working state, the straw hat cup descends with the movable inner tube and fills the round holes in the woven layer. In the working state, the straw hat cup rises with the movable inner tube until the water spray head rises above the woven layer.

[0013] Furthermore, an arc-shaped support platform is provided on the inner wall of the bottom outer tube near the upper end of the bottom outer tube. A limit support block is provided on the outer wall of the movable inner tube corresponding to the support platform. The support platform is provided with a slot for limiting the passage of the limit support block. The limit support block passes through the slot from below the support platform and rests on the upper part of the support platform.

[0014] Furthermore, several fixing pins for fixing the bottom outer tube are provided on the outer side of the bottom outer tube near the lower end of the bottom outer tube.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. The biodegradable lawn of this utility model, which is a mixture of natural grass and artificial grass, combines the advantages of artificial grass and natural grass. When the climate or season is not conducive to the growth of natural grass, the artificial grass layer can ensure that the appearance and function of the lawn are not affected.

[0017] 2. The artificial turf layer is woven, which provides conditions for the growth of natural grass, and the woven layer can also help to stabilize the roots of natural grass.

[0018] 3. The artificial grass fibers and weave layer of the artificial turf are made of biodegradable materials, which reduces the environmental damage caused by the replacement of damaged artificial turf. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the biodegradable lawn structure of the mixture of natural grass and artificial grass in Example 1.

[0020] Figure 2 This is a schematic diagram of the artificial turf layer structure in this utility model.

[0021] Figure 3 This is a schematic diagram of the biodegradable lawn structure of the mixture of natural grass and artificial grass in Example 2.

[0022] Figure 4 This is a schematic diagram of the lifting nozzle structure in Example 2.

[0023] Figure 5 This is a schematic diagram of the interior of the lifting nozzle in Example 2.

[0024] Figure 6 This is a schematic diagram of the support platform support limit support block in Example 2.

[0025] In the picture:

[0026] 1. Natural grass planting layer; 2. Gravel layer; 3. Plain soil layer; 4. Artificial grass fiber; 5. Woven layer; 6. Drainage ditch; 7. Water supply pipe; 8. Irrigation pipe; 9. Natural grass; 10. Lifting sprinkler; 11. Bottom outer pipe; 12. Movable inner pipe; 13. Spray nozzle; 14. Hose; 15. Straw cap cup; 16. Support platform; 17. Limiting support block; 18. Groove; 19. Fixing pin; 20. Limiting nut. Detailed Implementation

[0027] The technical solution of this utility model will be further described below with reference to specific embodiments:

[0028] Example 1

[0029] A biodegradable lawn composed of a blend of natural and artificial grass, such as Figure 1 As shown, it includes, in sequence, an artificial turf layer, a natural grass planting layer 1, a gravel layer 2, and a soil layer 3; the artificial turf layer includes artificial grass fibers 4 and a woven layer 5. The artificial grass fibers 4 are clustered and woven on top of the woven layer 5 and distributed in a rectangular array, as shown. Figure 2As shown, both the artificial grass fibers 4 and the woven layer 5 are made of biodegradable materials. In this embodiment, the biodegradable materials used for the artificial grass fibers 4 and the woven layer are existing materials. Existing biodegradable materials include biodegradable grass fibers disclosed in document number CN113026143B. Several grass fibers are bundled together and woven into a woven layer by interlacing warp and weft. During the weaving process, one end of several grass fibers is woven and fixed inside the woven layer. To reinforce the grass fibers and the woven layer, cotton rope can also be used for reinforcement. The natural grass planting layer is mainly a soil layer, used for planting natural grass 9. After the natural grass germinates, it extends through the gaps in the woven layer to the top of the woven layer. A drainage ditch 6 is set at the bottom of the soil layer 3 corresponding to the gravel layer 2. A water supply pipe 7 is also installed in the drainage ditch 6, which is connected to an irrigation pipe 8 for lawn irrigation. The gravel layer 2 is located below the natural grass planting layer 1, which facilitates lawn drainage and also prevents the loss of soil structure in the natural grass planting layer 1.

[0030] When the artificial turf layer is damaged and needs to be replaced, the material of the replaced artificial turf layer can be recycled and degraded, or it can be sorted and processed. Artificial grass fibers that meet performance requirements can be reused, reducing environmental pollution.

[0031] Preferably, the upper width of the drainage ditch is greater than the bottom width, and the gravel layer is filled into the drainage ditch outside the water supply pipe. Water above the lawn seeps downward into the drainage ditch and is then discharged into the drainage system such as rainwater wells.

[0032] More specifically, the thickness of the natural grass planting layer is 25-30cm, and the thickness of the gravel layer above the soil layer is 10-15cm. In this embodiment, the thickness of the natural grass planting layer 1 is 20cm, and the thickness of the gravel layer 2 above the soil layer 3 is 10cm. Common natural grasses such as ryegrass and zoysia grass can be selected.

[0033] One end of the irrigation pipe 8 is connected to the water supply pipe 7, and the other end extends upward to the top of the woven layer 5 and a water spray head is installed above the woven layer 5. When the lawn needs to be irrigated, water is supplied through the water supply pipe 7. The water supply pipe 7 can be connected to the city rainwater well by pumping, and the water pump can be turned on to irrigate the lawn.

[0034] Example 2

[0035] A biodegradable lawn composed of a blend of natural and artificial grass, such as Figure 3As shown, unlike Embodiment 1, one end of the irrigation pipe 8 is connected to the water supply pipe 7, and the other end is equipped with a lifting nozzle 10. The upper end of the lifting nozzle 10 is equipped with a water spray head 13. The water spray head 13 can be a common atomizing nozzle, a direct spray nozzle, or a pipe interface. After the pipe interface is connected to the water pipe, it can irrigate different areas. In the non-working state, the water spray head descends with the lifting nozzle to below the braided layer 5. In the working state, the water spray head rises with the lifting nozzle 10 to above the braided layer 5. The working state referred to in this embodiment refers to the state where irrigation and water use are required.

[0036] More specifically, such as Figure 4 As shown, the lifting nozzle 10 includes a bottom outer tube 11 and a movable inner tube 12 movably installed inside the bottom outer tube 11. The water spray head 13 is fixed inside the movable inner tube 12 near the upper end and is connected to the irrigation pipe 8 via a hose 14. A straw hat cup 15 is also installed above the upper end of the lifting nozzle 10. The bottom outer tube 11 is pre-embedded in the natural grass planting layer 1. The woven layer 5 has round holes corresponding to the lifting nozzle 10. Since the woven layer 5 is a woven structure, the edges of the round hole area need to be reinforced by locking the edges. In the non-working state, the straw hat cup 15 descends with the movable inner tube 12 and fills the round holes of the woven layer 5. The straw hat cup is filled with artificial grass fibers for decoration. The upper surface of the straw hat cup should be flush with or lower than the upper surface of the woven layer. In the working state, the straw hat cup 15 rises with the movable inner tube 12 until the water spray head rises above the woven layer 5, facilitating irrigation of the lawn.

[0037] Several fixing pins 19 for fixing the bottom outer tube 11 are provided on the outer side of the bottom outer tube near the lower end of the bottom outer tube. The fixing pins 19 are such as steel pins, expansion bolts, etc. A flange is provided around the bottom periphery of the bottom of the bottom outer tube 11, and the fixing pins 19 pass through the flange holes of the flange.

[0038] More specifically, such as Figure 5 and Figure 6 As shown, an arc-shaped support platform 16 is provided on the inner wall of the bottom outer tube 11 near the upper end of the bottom outer tube 11. A limiting support block 17 is provided on the outer wall of the movable inner tube 12 corresponding to the support platform 16. The support platform 16 is provided with a slot 18 for limiting the passage of the limiting support block 17. The limiting support block 17 passes through the slot 18 from below the support platform 16 and rests on the support platform 16, ensuring that the position of the movable inner tube 12 can be relatively fixed after it is raised in the working state. The movable inner tube 12 can be raised manually. When raised, the movable inner tube 12 is rotated relative to the bottom outer tube 11 so that the limiting support block 17 passes through the slot 18. After passing through the slot 18, the movable inner tube 12 is rotated again so that the limiting support block 17 deflects onto the support platform 16.

[0039] More specifically, the upper ends of the straw hat cup 15 and the movable inner tube 12 are connected by bolts or by threaded connection. The upper end of the bottom outer tube 11 is also provided with a limiting nut 20 to prevent the movable inner tube 12 from disengaging from the bottom outer tube 12. The limiting nut 20 is threadedly installed on the upper end of the bottom outer tube 11. The center of the limiting nut 20 is provided with a hole that fits with the outer wall of the movable inner tube 12. During assembly, the movable inner tube 12 is inserted into the bottom outer tube 11 from the bottom, and then the straw hat cup 15 is installed. In the non-working state, the bottom of the straw hat cup 15 rests on the limiting nut 20. In the working state, the limiting nut 20 prevents the limiting support block 17 from disengaging from the bottom outer tube 11.

[0040] After watering is completed, the movable inner tube 12 is rotated relative to the bottom outer tube 11, so that the limiting support block 17 reaches the bottom of the support platform 16 through the slot 18, and the movable inner tube 12 is stored in the bottom outer tube 11. The straw hat cup 15 backfills the round hole of the woven layer to avoid affecting the use of the lawn.

[0041] This embodiment is merely a further explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art can make non-inventive modifications to this embodiment as needed, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present invention.

Claims

1. A biodegradable lawn composed of a mixture of natural grass and artificial grass, characterized in that, The system includes, in sequence, an artificial turf layer, a natural grass planting layer, a gravel layer, and a soil layer; the artificial turf layer includes artificial grass fibers and a woven layer, with the artificial grass fibers woven and fixed on top of the woven layer and distributed in a rectangular array, and both the artificial grass fibers and the woven layer are made of biodegradable materials; the soil layer has a drainage ditch at the bottom corresponding to the gravel layer, and a water supply pipe is also installed in the drainage ditch, which is connected to an irrigation pipe for irrigating the turf.

2. The biodegradable lawn composed of a mixture of natural grass and artificial grass according to claim 1, characterized in that, The upper width of the drainage ditch is greater than the bottom width, and the gravel layer fills the drainage ditch outside the water supply pipe.

3. The biodegradable lawn composed of a mixture of natural grass and artificial grass according to claim 1, characterized in that, The thickness of the natural grass planting layer is 25-30cm, and the thickness of the gravel layer above the soil layer is 10-15cm.

4. The biodegradable lawn composed of a mixture of natural grass and artificial grass according to claim 1, characterized in that, The artificial turf's woven layer is also woven with cotton ropes for reinforcement with artificial grass fibers and the woven layer itself.

5. A biodegradable lawn composed of a mixture of natural grass and artificial grass according to claim 1, characterized in that, One end of the irrigation pipe is connected to the water supply pipe, and the other end extends upward to the top of the braided layer, where a water spray nozzle is installed.

6. The biodegradable lawn composed of a mixture of natural grass and artificial grass according to claim 1, characterized in that, One end of the irrigation pipe is connected to the water supply pipe, and the other end is equipped with a lifting nozzle. A water spray head is installed at the upper end of the lifting nozzle. In the non-working state, the water spray head descends with the lifting nozzle to below the braided layer, and in the working state, the water spray head rises with the lifting nozzle to above the braided layer.

7. A biodegradable lawn composed of a mixture of natural grass and artificial grass according to claim 6, characterized in that, The lifting nozzle includes a bottom outer tube and a movable inner tube movably installed inside the bottom outer tube. The water spray head is fixed inside the movable inner tube near the upper end and is connected to the irrigation pipe via a flexible hose. A straw hat cup is also installed above the upper end of the lifting nozzle. The bottom outer tube is pre-embedded in the natural grass planting layer, and the woven layer has round holes corresponding to the lifting nozzle. In the non-working state, the straw hat cup descends with the movable inner tube and fills the round holes in the woven layer. In the working state, the straw hat cup rises with the movable inner tube until the water spray head rises above the woven layer.

8. A biodegradable lawn composed of a mixture of natural grass and artificial grass according to claim 7, characterized in that, An arc-shaped support platform is provided on the inner wall of the bottom outer tube near the upper end of the bottom outer tube. A limit support block is provided on the outer wall of the movable inner tube corresponding to the support platform. The support platform is provided with a slot for limiting the passage of the limit support block. The limit support block passes through the slot from below the support platform and rests on the upper part of the support platform.

9. A biodegradable lawn composed of a mixture of natural grass and artificial grass according to claim 7, characterized in that, Several fixing pins for fixing the bottom outer tube are provided on the outer side of the bottom outer tube near the lower end of the bottom outer tube.

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