Micro-drip irrigation three-dimensional soil fixation mesh pad and preparation method thereof

Abstract

The invention discloses a micro-drip-irrigation three-dimensional soil fixation mesh pad and a preparation method thereof, and relates to the technical field of ecological environment protection, the micro-drip-irrigation three-dimensional soil fixation mesh pad comprises an irrigation device and a three-dimensional soil fixation mesh pad, and further comprises a micro-drip-irrigation assembly connected with the three-dimensional soil fixation mesh pad, the micro-drip irrigation assembly comprises a plurality of reinforcing ribs used for transmitting fluid and a plurality of micro-drip irrigation switches arranged on the reinforcing ribs, and the micro-drip irrigation switches are used for controlling the speed of sucking the fluid from the reinforcing ribs; the problem that irrigation is uneven due to the fact that an irrigation line of an existing three-dimensional geonet pad irrigation device is long is solved.

Description

Technical Field

[0001] The invention relates to the technical field of ecological environment protection, and in particular to a micro-drip irrigation three-dimensional soil-fixing mesh pad and a preparation method thereof. Background Art

[0002] Three-dimensional soil-fixing net, also known as geonet mat, three-dimensional geonet mat, three-dimensional vegetation net and three-dimensional grass planting net, is a new type of civil engineering material. It is a three-dimensional structured loofah network-like net mat used for planting grass and fixing soil. It can effectively solve the protection problems of rock slopes and high and steep slopes. It builds a protection system with its own growth ability on the slope surface, and is a new technology for reinforcing the slope through the growth of plants. According to the characteristics of the slope topography, soil quality and regional climate, a layer of geosynthetics is covered on the surface of the slope and a variety of plants are planted in a certain combination and spacing. Through the growth activities of plants, the purpose of root reinforcement and stem and leaf erosion prevention is achieved. After being treated with ecological slope protection technology, a dense vegetation cover can be formed on the slope surface, and a tangled root system can be formed in the topsoil layer, which can effectively inhibit the erosion of the slope by rainstorm runoff, increase the shear strength of the soil, reduce the pore water pressure and the self-weight of the soil, thereby greatly improving the stability and anti-scouring ability of the slope.

[0003] The existing three-dimensional geogrid is composed of multiple layers of plastic concave-convex mesh and biaxially stretched flat mesh, and is bonded at the intersection by hot melting to form a stable three-dimensional mesh structure; the surface layer has an uneven appearance, and the material is loose and flexible, leaving more than 90% of the space to be filled with soil and sand; the bottom biaxially stretched mesh has the characteristics of low elongation and high strength, which plays a role in preventing the slope from sliding down; the roots of plants can pass through the entire vegetation mesh comfortably and evenly, penetrating into the ground as deep as 0.5-2 meters, so that the vegetation, mesh and soil form a strong composite mechanical interlocking system, thereby achieving the purpose of protecting the slope.

[0004] The existing three-dimensional geogrid is installed on the slope, and an irrigation device is installed on the top of the slope to provide irrigation water for the three-dimensional geogrid. However, the three-dimensional geogrid has a certain length, so that the three-dimensional geogrid close to the irrigation device obtains irrigation water first and irrigates first, while the three-dimensional geogrid far away from the irrigation device needs to wait for a considerable time to obtain irrigation water. During the waiting process, the three-dimensional geogrid close to the irrigation device continues to irrigate, so that the irrigation water on the irrigation line gradually decreases from near to far, resulting in uneven irrigation. Summary of the invention

[0005] The invention provides a micro-drip irrigation three-dimensional soil-fixing mesh pad and a preparation method thereof, so as to solve the problem of uneven irrigation caused by the long irrigation line of the existing three-dimensional geonet pad irrigation equipment.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] A micro-drip irrigation three-dimensional soil-fixing mesh pad includes an irrigation device and a three-dimensional soil-fixing mesh pad, and also includes a micro-drip irrigation component connected to the three-dimensional soil-fixing mesh pad, the micro-drip irrigation component includes a plurality of reinforcing ribs for transmitting fluid and a plurality of micro-drip irrigation switches arranged on the reinforcing ribs, and the micro-drip irrigation switches are used to control the speed of sucking fluid from the reinforcing ribs.

[0008] The present invention controls the speed at which the micro-drip irrigation component draws fluid from the reinforcing rib through a micro-drip irrigation switch, thereby controlling the irrigation speed of the micro-drip irrigation component close to the irrigation device, preventing it from being at the upper limit of its own irrigation speed for a long time, resulting in a reduction in the amount of irrigation water obtained by subsequent micro-drip irrigation components, a delay in the time of obtaining irrigation water, or even an inability to obtain sufficient irrigation water, resulting in uneven irrigation.

[0009] Furthermore, the micro-drip irrigation switch includes a water guide nail and a water absorbing member installed on the upper end of the water guide nail, the water guide nail is provided with a plurality of water guide grooves, the water guide grooves are connected to the inside of the reinforcing rib, and the upper end of the water guide grooves is in contact with the water absorbing member.

[0010] By driving the water-guiding nails into the reinforcing ribs, the fluid in the reinforcing ribs can penetrate into the water-absorbing part through the water-guiding grooves, and then the fluid is drip-irrigated into the soil through the water-absorbing part. The structure is simple and the drip irrigation effect is good. At the same time, the water-guiding nails can also fix the reinforcing ribs. By driving the water-guiding nails into the intersection of two reinforcing ribs, not only the two reinforcing ribs can be fixed, but also the fluid in the two reinforcing ribs can be simultaneously introduced into the water-absorbing part, thereby enhancing the conduction and utilization efficiency of the irrigation water of the micro-drip irrigation three-dimensional soil-fixing mesh mat.

[0011] Furthermore, the micro-drip irrigation switch also includes a water guide part and a piston part connected to each other, a cavity for accommodating the water guide part is opened inside the water absorbing part, a notch for the water guide nail to pass through is opened at the lower end of the water absorbing part, the piston part is installed in the water guide groove, and a plurality of thrust elastic parts are provided at the lower end of the water guide part.

[0012] Since the water guide groove is a cavity, the irrigation water can be introduced into the water absorbing part only after it is filled, resulting in a slow start-up speed of irrigation using the micro-drip irrigation three-dimensional soil-fixing mesh pad. Therefore, the water guide groove is filled by the piston part to speed up the irrigation start-up speed of the micro-drip irrigation three-dimensional soil-fixing mesh pad. At the same time, the weight of the water guide part and the thrust elastic part are used to control the rise and fall of the water guide part and the piston part, control the contact area between the reinforcing ribs, the piston part and the water guide groove, control the size and speed of the irrigation water passing therethrough, and thus control the irrigation speed of the micro-drip irrigation assembly.

[0013] Furthermore, the piston portion includes an opening section located at the bottom and a closing section located at the top, and the outer side of the closing section is covered with a waterproof layer.

[0014] When irrigation water passes through the reinforcing rib, the irrigation water penetrates through the piston part through the water guide groove and enters the water guide part. The water guide part then penetrates the irrigation water into the water absorbing part, and the water absorbing part then performs drip irrigation to consume the irrigation water. When the irrigation water absorbed by the micro-drip irrigation assembly is more than the irrigation water consumed by drip irrigation, the irrigation water accumulated in the water guide part increases, causing its weight to increase, thereby compressing the thrust elastic part, and the piston part moves downward. The contact area between the closing section above the piston part and the reinforcing rib increases. Due to the isolation of the waterproof layer, the irrigation water absorbed by the micro-drip irrigation assembly decreases or even stops. The water absorbing part continuously consumes irrigation water by drip irrigation, which reduces the irrigation water accumulated in the water guide part and reduces the weight of the water guide part. The thrust elastic part pushes the water guide part upward, which reduces the contact area between the closing section above the piston part and the reinforcing rib, thereby achieving a dynamic balance between the micro-drip irrigation assembly absorbing irrigation water and the drip irrigation consuming irrigation water, thereby preventing the micro-drip irrigation assembly from continuously absorbing a large amount of irrigation water, resulting in a reduction in the irrigation water obtained by the subsequent micro-drip irrigation assembly.

[0015] Furthermore, a plurality of water guiding belts connected to the water absorbing member are provided at the upper end of the water guiding portion.

[0016] Since the water guide part needs to move up and down, a gap is left between the water guide part and the water absorbing member, which affects the penetration of irrigation water. The irrigation water can pass through the water guide belt to maintain the connection between the water guide part and the water absorbing member.

[0017] Furthermore, the water guide part, the piston part and the water guide belt are all made of water guide material, and the outer side of the piston part is in contact with the reinforcing rib.

[0018] Furthermore, a fluid channel is provided in the reinforcing rib, the fluid channel is filled with a water-conducting material for conducting fluid, and the micro-drip irrigation switch and the irrigation device are both connected to the fluid channel.

[0019] Furthermore, the water-conducting material includes porous fiber cotton yarn.

[0020] By setting reinforcing ribs and porous fiber cotton inside, the water transport function is realized and the strength of the three-dimensional soil solidification network is improved. The porous fiber cotton is interwoven by countless fine fibers, forming a large number of tiny pores, which not only increases the surface area of ​​the material, but also provides abundant channels for water circulation and storage, so that the porous fiber cotton can effectively absorb and store water, air and nutrients.

[0021] When rainwater or other water sources come into contact with porous fiber cotton, the water will spread rapidly on the fiber surface and form tiny water droplets between the fibers due to the effect of surface tension. These water droplets are then captured by the tiny pores between the fibers and gradually diffuse and store in the fiber network. Since fiber materials usually have good hydrophilicity, they can strongly attract and retain water, thereby achieving an efficient water absorption process. When the porous fiber cotton reaches saturation, excess water will pass through the fiber layer to play a role in filtering and drainage, but most of the water is still tightly locked by the fiber network. Under natural conditions, even if it does not contact soil or sand, the porous fiber cotton loses less water under the action of gravity. When the water in the porous fiber cotton reaches saturation or needs to be released, its unique fiber structure and pore distribution can ensure that the water is discharged quickly and evenly. When it comes into contact with dry soil or other substances with large capillary force, the porous fiber cotton can release more than 60% of the stored water in a short time, providing the necessary water supply for the plant roots. At the same time, during the entire drainage process, the porous fiber cotton does not require any external energy consumption, achieving a natural and efficient drainage effect.

[0022] In addition to its excellent water-conducting properties, porous fiber cotton also has good ecological and environmental protection properties and sustainable development potential; the material is made of natural fibers and pollution-free materials, is non-toxic and harmless, and does not pollute the environment; its durability and long life allow porous fiber cotton to be reused many times without being easily damaged or deformed, helping to reduce material waste and environmental pollution; in addition, porous fiber cotton also has good air permeability and antibacterial properties, which can maintain the health of the root system and the growth environment and reduce the occurrence of diseases.

[0023] Furthermore, a plurality of water supply pipes arranged in parallel with the fluid channel are provided in the reinforcing rib, and a water-conducting material is filled between the water supply pipes and the fluid channel.

[0024] Since the micro-drip irrigation three-dimensional soil-fixing mesh pad is laid over a large area, the micro-drip irrigation component at the end may not be able to obtain irrigation water for a long time. Therefore, the irrigation water is transported through a water delivery pipe arranged in the reinforcement rib. At the same time, the irrigation water is replenished in the water guide pipe through the penetration of the water-conducting material, which can reduce the amount of irrigation water absorbed by the micro-drip irrigation component at the front end.

[0025] The preparation method of a micro-drip irrigation three-dimensional soil-fixing mesh pad comprises:

[0026] Preparation of reinforcing ribs: making porous fiber cotton into threads, and then making single or multiple porous fiber cotton threads and high-strength polypropylene material into polypropylene porous fiber cotton reinforcing ribs through a mold extrusion process;

[0027] Install the micro-drip irrigation switch: Arrange multiple reinforcing ribs crosswise to form a grid, and install the micro-drip irrigation switch at the intersection of the grid;

[0028] A three-dimensional soil-fixing mesh pad is obtained by spraying polypropylene on the mesh formed by the reinforcing ribs using a melt-blowing process of polypropylene.

[0029] One or more technical solutions provided by the present invention have at least the following technical effects or advantages:

[0030] (1) The present invention controls the speed at which the micro-drip irrigation assembly absorbs fluid from the reinforcing ribs through a micro-drip irrigation switch, thereby controlling the irrigation speed of the micro-drip irrigation assembly near the irrigation device, preventing it from being at the upper limit of its own irrigation speed for a long time, resulting in a reduction in the amount of irrigation water obtained by the subsequent micro-drip irrigation assembly, a delay in the time of obtaining irrigation water, or even an inability to obtain sufficient irrigation water, resulting in uneven irrigation;

[0031] (2) By driving the water guide nail into the reinforcing rib, the fluid in the reinforcing rib can penetrate into the water absorbing member through the water guide groove, and then the fluid is drip-irrigated into the soil through the water absorbing member. The structure is simple and the drip irrigation effect is good. At the same time, the water guide nail can also fix the reinforcing rib. By driving the water guide nail into the intersection of two reinforcing ribs, not only the two reinforcing ribs are fixed, but also the fluid in the two reinforcing ribs can be simultaneously introduced into the water absorbing member, thereby enhancing the conduction and utilization efficiency of the irrigation water of the micro-drip irrigation three-dimensional soil-fixing mesh mat;

[0032] (3) Filling the water guide groove through the piston part accelerates the irrigation start-up speed of the micro-drip irrigation three-dimensional soil-fixing mesh pad, and at the same time, the weight of the water guide part and the thrust elastic member control the rise and fall of the water guide part and the piston part, control the contact area between the reinforcing rib, the piston part and the water guide groove, and control the size and speed of the irrigation water passing through, thereby controlling the irrigation speed of the micro-drip irrigation assembly;

[0033] (4) By providing reinforcing ribs and porous fiber cotton inside, the water transport function is realized and the strength of the three-dimensional soil consolidation network is improved. The porous fiber cotton is interwoven with countless fine fibers, forming a large number of tiny pores, which not only increases the surface area of ​​the material, but also provides abundant channels for water circulation and storage, so that the porous fiber cotton can effectively absorb and store water, air and nutrients;

[0034] (5) Irrigation water is transported through the water delivery pipe disposed in the reinforcing rib. At the same time, irrigation water is replenished in the water delivery pipe through the penetration of the water-conducting material, thereby preventing the irrigation water from being absorbed in large quantities by the micro-drip irrigation assembly at the front end. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of the present invention, and do not constitute a limitation on the embodiments of the present invention;

[0036] Figure 1 It is a schematic diagram of the structure of the three-dimensional soil-fixing mesh pad for micro-drip irrigation in the present invention;

[0037] Figure 2 is a cross-sectional view a of the micro-drip irrigation switch structure of the present invention;

[0038] Figure 3 It is a cross-sectional view b of the micro-drip irrigation switch structure of the present invention;

[0039] Figure 4 It is a schematic diagram of the water-guiding nail structure in the present invention;

[0040] Figure 5 It is a schematic diagram of the structure of the water guide part and the piston part in the present invention;

[0041] Figure 6 is a cross-sectional view of the reinforcing rib structure in the present invention;

[0042] Among them, 1-reinforcement rib, 101-fluid channel, 102-water delivery pipe, 2-micro-drip irrigation switch, 3-water guide nail, 301-water guide groove, 4-water absorbing part, 401-cavity, 402-thrust elastic part, 403-water guide belt, 5-water guide part, 6-piston part, 601-opening section, 602-closing section. DETAILED DESCRIPTION

[0043] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0044] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those within the scope of this description. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0045] Example 1

[0046] This embodiment provides a micro-drip irrigation three-dimensional soil-fixing mesh pad, such as Figure 1-Figure 6 As shown, it includes an irrigation device and a three-dimensional soil-fixing mesh pad, and also includes a micro-drip irrigation component connected to the three-dimensional soil-fixing mesh pad, the micro-drip irrigation component includes a plurality of reinforcing ribs 1 for transmitting fluid and a plurality of micro-drip irrigation switches 2 arranged on the reinforcing ribs 1, and the micro-drip irrigation switches 2 are used to control the speed of sucking fluid from the reinforcing ribs 1.

[0047] Among them, the reinforcing rib 1 is connected to the water outlet of the irrigation device, and polypropylene is sprayed on the reinforcing rib through the melt-blowing process to form a three-dimensional soil-fixing mesh pad. The reinforcing rib 1 is preferably cross-arranged to form a grid shape, which is convenient for connection and installation with the three-dimensional soil-fixing mesh pad, and a micro-drip irrigation switch 2 is preferably installed at each intersection of the reinforcing rib 1 to increase the number of micro-drip irrigation points. The micro-drip irrigation switch 2 is connected to the fluid channel inside the reinforcing rib 1.

[0048] In a more preferred embodiment, the micro-drip irrigation switch 2 includes a water guide nail 3 and a water absorbing member 4 installed on the upper end of the water guide nail 3, and a plurality of water guide grooves 301 are opened on the water guide nail 3, and the water guide grooves 301 are connected to the inside of the reinforcing rib 1, and the upper end of the water guide groove 301 is in contact with the water absorbing member 4.

[0049] Among them, the water guiding nail 3 is nailed into the intersection of two water guiding nails 3, and preferably completely penetrates the two water guiding nails 3. The number of water guiding grooves 301 of the water guiding nail 3 is arbitrary and is evenly distributed along the circumference of the water guiding nail 3. The length of the water guiding groove 301 set on the water guiding nail 3 is determined according to needs. The water guiding groove 301 in the upper part of the water guiding nail 3 needs to contact the water absorbing member 4, and the water guiding groove 301 in the lower part contacts the fluid channel inside the reinforcing rib 1 when the water guiding nail 3 penetrates the reinforcing rib 1.

[0050] In a more preferred embodiment, the micro-drip irrigation switch 2 also includes a water guide part 5 and a piston part 6 connected to each other, a cavity 401 for accommodating the water guide part 5 is opened inside the water absorbing part 4, a notch for the water guide nail 3 to pass through is opened at the lower end of the water absorbing part 4, the piston part 6 is installed in the water guide groove 301, and a plurality of thrust elastic parts 402 are provided at the lower end of the water guide part 5.

[0051] Among them, the shape of the water guiding part 5 is the same as the shape of the cavity 401, which can be a prism or a cylindrical structure. The height of the water guiding part 5 is less than the height of the cavity 401, and the height difference between the water guiding part 5 and the cavity 401 is the maximum moving distance of the water guiding part 5 and the piston part 6. A convex ridge is provided on the inner side of the piston part 6 for embedding in the water guiding groove 301. The size of the notch needs to be able to accommodate the water guiding nail 3 and the piston part 6 wrapped therein. The thrust elastic part 402 is preferably a thrust spring, and at least two are set, which are evenly distributed along the axis of the piston part 6, and the initial state of the thrust elastic part 402 can push the upper end of the water guiding part 5 to contact the top of the cavity 401.

[0052] In a more preferred embodiment, the piston portion 6 includes an opening section 601 located at the bottom and a closing section 602 located at the top, and the outer side of the closing section 602 is covered with a waterproof layer.

[0053] Among them, the lengths of the opening section 601 and the closing section 602 are determined according to the maximum moving distance of the piston part 6 and the thickness of the reinforcing rib 1. Preferably, when the piston part 6 is located at the uppermost end, the opening section 601 is in contact with the reinforcing rib 1, and the closing section 602 is completely separated from the reinforcing rib 1; when the piston part 6 is located at the lowermost end, the closing section 602 is in contact with the reinforcing rib 1, and the opening section 601 is completely separated from the reinforcing rib 1. The waterproof layer can be a waterproof coating such as rubber and silicone.

[0054] In a more preferred embodiment, a plurality of water guiding belts 403 connected to the water absorbing member 4 are provided at the upper end of the water guiding portion 5 .

[0055] Among them, the water guide belt 403 and the water absorbent part 4 are made of the same absorbent material, which can be sponge, polypropylene, etc. The length of the water guide belt 403 is greater than the height of the cavity 401, and it is preferably spirally distributed around the water guide nail 3, so that when the water guide part 5 moves upward, the water guide belt 403 is evenly compressed and close to the top of the cavity 401, thereby increasing the contact area and enhancing the penetration rate of irrigation water. Multiple water guide belts 403 can also be set to enhance the penetration rate of irrigation water.

[0056] In a more preferred embodiment, the water guide portion 5 , the piston portion 6 and the water guide belt 403 are all made of water-conducting materials, and the outer side of the piston portion 6 is in contact with the reinforcing rib 1 .

[0057] Example 2

[0058] On the basis of Example 1, Figure 1-Figure 6 As shown, a fluid channel 101 is provided in the reinforcing rib 1 , and the fluid channel 101 is filled with a water-conducting material for conducting fluid, and the micro-drip irrigation switch 2 and the irrigation device are both connected to the fluid channel 101 . The fluid channel 101 is arranged parallel to the reinforcing rib 1 .

[0059] In a more preferred embodiment, the water-conducting material comprises porous fiber cotton yarn. During production, the porous fiber cotton yarn is firstly made into a thread, and then a single or multiple porous fiber cotton threads and a high-strength polypropylene material are extruded into a polypropylene porous fiber cotton reinforcing rib through a die extrusion process.

[0060] In a more preferred embodiment, a plurality of water supply pipes 102 arranged parallel to the fluid channel 101 are further provided in the reinforcing rib 1 , and a water-conducting material is filled between the water supply pipes 102 and the fluid channel 101 .

[0061] Preferably, the fluid channel 101 is disposed in the middle of the reinforcing rib 1 , and the water supply pipe 102 is disposed on both sides of the fluid channel 101 .

[0062] Example 3

[0063] Based on any of the above embodiments, this embodiment provides a method for preparing a micro-drip irrigation three-dimensional soil-fixing mesh mat, comprising:

[0064] Preparation of reinforcing ribs 1: making porous fiber cotton into threads, and then making single or multiple porous fiber cotton threads and high-strength polypropylene material into polypropylene porous fiber cotton reinforcing ribs through a mold extrusion process;

[0065] Install the micro-drip irrigation switch 2: Arrange multiple reinforcing ribs 1 crosswise to form a grid, and install the micro-drip irrigation switch 2 at the intersection of the grid;

[0066] Obtain a three-dimensional soil-fixing mesh pad: Use a melt-blowing process of polypropylene to spray polypropylene onto the grid formed by the reinforcing ribs 1.

[0067] The preparation of the reinforcing rib 1 specifically includes: making a porous fiber cotton thread, installing a lower mold for the reinforcing rib 1, first laying a layer of high-strength polypropylene material on the lower mold, then laying a single or multiple porous fiber cotton threads on the polypropylene material, and then laying another layer of high-strength polypropylene material on the porous fiber cotton threads, covering the upper mold, and using equipment to extrude the upper and lower molds to form a polypropylene porous fiber cotton reinforcing rib;

[0068] The specific preparation process of the micro-drip irrigation switch 2 includes: the water guide nail 3 is made of polypropylene material through a die-casting mold, and then the water guide nail 3 and the water absorbing part 4 are die-cast into a whole through the mold, and the movable parts such as the water guide part 5 and the piston part 6 are also made through the mold and installed in the cavity together with the thrust elastic part 402.

[0069] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0070] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A micro-drip irrigation three-dimensional soil-fixing mesh mat, comprising an irrigation device and a three-dimensional soil-fixing mesh mat, characterized in that: It also includes a micro-drip irrigation assembly connected to the three-dimensional soil-fixing mesh pad, the micro-drip irrigation assembly includes a plurality of reinforcing ribs (1) for transmitting fluid and a plurality of micro-drip irrigation switches (2) arranged on the reinforcing ribs (1), the micro-drip irrigation switches (2) being used to control the speed of sucking fluid from the reinforcing ribs (1).

2. The micro-drip irrigation three-dimensional soil-fixing mesh mat according to claim 1, characterized in that: The micro-drip irrigation switch (2) comprises a water guide nail (3) and a water absorbing member (4) mounted on the upper end of the water guide nail (3); a plurality of water guide grooves (301) are provided on the water guide nail (3); the water guide grooves (301) are connected to the interior of the reinforcing rib (1); and the upper ends of the water guide grooves (301) are in contact with the water absorbing member (4).

3. The micro-drip irrigation three-dimensional soil-fixing mesh mat according to claim 2, characterized in that: The micro-drip irrigation switch (2) further comprises a water guide portion (5) and a piston portion (6) which are connected to each other; a cavity (401) for accommodating the water guide portion (5) is provided inside the water absorbing member (4); a notch for the water guide nail (3) to pass through is provided at the lower end of the water absorbing member (4); the piston portion (6) is installed in the water guide groove (301); and a plurality of thrust elastic members (402) are provided at the lower end of the water guide portion (5).

4. The micro-drip irrigation three-dimensional soil-fixing mesh mat according to claim 3, characterized in that: The piston portion (6) comprises an opening section (601) located at the bottom and a closing section (602) located at the top, and the outer side of the closing section (602) is covered with a waterproof layer.

5. The micro-drip irrigation three-dimensional soil-fixing mesh mat according to claim 3, characterized in that: The upper end of the water guide portion (5) is provided with a plurality of water guide belts (403) connected to the water absorbing member (4).

6. The micro-drip irrigation three-dimensional soil-fixing mesh mat according to claim 5, characterized in that: The water guide portion (5), the piston portion (6) and the water guide belt (403) are all made of water-conducting material, and the outer side of the piston portion (6) is in contact with the reinforcing rib (1).

7. The micro-drip irrigation three-dimensional soil-fixing mesh mat according to claim 1, characterized in that: A fluid channel (101) is provided in the reinforcing rib (1), the fluid channel (101) is filled with a water-conducting material for conducting fluid, and the micro-drip irrigation switch (2) and the irrigation device are both connected to the fluid channel (101).

8. The micro-drip irrigation three-dimensional soil-fixing mesh mat according to claim 7, characterized in that: The water-conducting material comprises porous fiber cotton yarn.

9. The micro-drip irrigation three-dimensional soil-fixing mesh mat according to claim 7, characterized in that: A plurality of water supply pipes (102) arranged parallel to the fluid channel (101) are also provided in the reinforcing rib (1), and a water-conducting material is filled between the water supply pipes (102) and the fluid channel (101).

10. A method for preparing a three-dimensional soil-fixing mesh mat for micro-drip irrigation, used for preparing the three-dimensional soil-fixing mesh mat for micro-drip irrigation as claimed in any one of claims 1 to 9, characterized in that: include: Preparation of reinforcing ribs (1): making porous fiber cotton into threads, and then making a single or multiple porous fiber cotton threads and a high-strength polypropylene material into polypropylene porous fiber cotton reinforcing ribs through a die extrusion process; Installing the micro-drip irrigation switch (2): cross-arranging a plurality of reinforcing ribs (1) to form a grid, and installing the micro-drip irrigation switch (2) at the intersection of the grid; A three-dimensional soil-fixing mesh pad is obtained by using a melt-blowing process of polypropylene to spray polypropylene onto the mesh formed by the reinforcing ribs (1).

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