Paddy field isolation device
By using isolation devices made of Teflon cloth to replace drainage ditches in paddy fields, the problems of time-consuming and labor-intensive drainage ditch repair, weed growth, occupation of arable land, and inconvenience in management have been solved. This has resulted in simplified installation, reduced weeds, increased land area, and easier mechanized management, thereby improving agricultural production efficiency and environmental safety.
Patent Information
- Application Number
- CN202511969949.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-24
- Publication Date
- 2026-03-03
AI Technical Summary
Existing drainage ditches in paddy fields suffer from problems such as time-consuming and labor-intensive repairs, weed growth, occupation of arable land, inconvenience in management, and time-consuming and labor-intensive replanting of rice seedlings, which affect agricultural production efficiency and environmental safety.
A paddy field isolation device is adopted, which consists of an isolation body made of Teflon cloth and support rods made of glass fiber reinforced composite material. The devices are connected by bolts and nuts, buried in the soil and arranged in an alternating manner, and are used to replace drainage ditches for water retention and isolation in paddy fields.
It simplifies installation, reduces weed growth, increases land planting area, facilitates agricultural machinery management, reduces labor costs, and improves production efficiency and environmental safety.
Smart Images

Figure CN121593441A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of paddy field agricultural production technology, and in particular to a paddy field isolation device. Background Technology
[0002] Modern rice paddies are crisscrossed by a network of ditches, typically arranged as follows: longitudinal water inlets and drainage outlets, with water inlets, drainage ditches, and more water inlets running between them. The rice paddies are formed between these ditches. Due to uneven terrain and the different rice farmers, our rice paddies are divided into several plots by transverse water-retaining embankments. Over time, in pursuit of larger rice planting areas, some farmers have filled in drainage ditches, replacing them with inlet ditches that connect to main drainage ditches, allowing water to flow into and out of the paddies directly into the inlet ditches. However, due to changing farming practices, current water scarcity, and the need for precise water level control, drainage ditches have gradually become obsolete. Those remaining, not yet filled in, now exist only marginally, becoming largely unnecessary. With social progress, the popularization of agricultural machinery, the promotion of drone fertilization and pesticide application, and large-scale unmanned agricultural machinery, the drawbacks of drainage ditches have become apparent, directly affecting the development of productivity. The planning and renovation of old farmland is therefore imperative.
[0003] I. Repairing drainage ditches is time-consuming and labor-intensive.
[0004] Drainage ditches are paddy field drainage facilities designed to regulate water levels in rice paddies, based on agricultural production needs. They consist of two earthen embankments and a ditch lower than the paddy field. Every growing season, due to rain erosion and trampling, the two earthen embankments gradually shrink. To facilitate management and production, the drainage ditches are repaired every spring. Soil is taken from the ditches and the paddy fields to reinforce the two earthen embankments, improving drainage, walking access, and the planting of dwarf legumes. Repairing a 450-meter-long drainage ditch requires four to five days of labor from able-bodied workers. With the current aging population, drainage ditch repair is even more challenging.
[0005] II. Weeds and All Living Things
[0006] Every year during the growing season, large amounts of weeds proliferate along the embankments and within the drainage ditches. This requires several rounds of manual or chemical weeding, increasing labor time and farming costs. If weeding is not timely, weed seeds can spread throughout the rice paddies. The extensive use of herbicides also poses a threat to environmental safety.
[0007] III. Area of cultivated land occupied
[0008] Drainage ditches stretch across the middle of two long, narrow paddy fields, used to regulate the water level in each paddy field unit on both sides of the ditch to meet production needs. Typically, the width of the drainage ditch surface is 80-90 centimeters. If we calculate based on 80 centimeters, the width of the earthen embankment of a drainage ditch is 40-50 centimeters. If we calculate based on 40 centimeters, a 450-meter drainage ditch will occupy more than 1 acre of arable land.
[0009] IV. Replanting rice seedlings is time-consuming and labor-intensive.
[0010] Every year during the rice transplanting season, rice paddies near drainage ditches need to be manually replanted because rice transplanters cannot plant rice seedlings near the edge of the rows. A 450-meter-long drainage ditch requires replanting rice seedlings on a 900-meter-long row, which is time-consuming and labor-intensive.
[0011] V. Inconvenient to manage
[0012] Due to the terrain, our rice paddies are not regular in shape, and the drainage ditches are not straight. This causes many inconveniences for tractor tillage, harrowing, rice transplanter planting, harvester harvesting, drone fertilization and pesticide application, and the promotion of large-scale unmanned agricultural machinery. It is time-consuming, labor-intensive, and difficult to manage. Summary of the Invention
[0013] The technical problem to be solved by the present invention is to provide a paddy field isolation device. The device is installed flat on the filled drainage ditch and can isolate the paddy fields of farmers on both sides. By introducing water into the ditch to the main drainage ditch, the water intake and drainage of the paddy field are carried out in the water intake ditch.
[0014] The technical solution adopted in this invention is: a paddy field isolation device, comprising a long strip-shaped isolation body and multiple support rods, wherein the isolation body includes an isolation layer, the isolation layer is made of Teflon cloth, and multiple screw holes I are spaced apart at the upper end of the isolation layer;
[0015] The support rod includes a rod body, with a connecting part having a screw hole II at the top end of the rod body and a pointed end at the bottom end of the rod body;
[0016] The bottom of the isolation body is buried in the soil, and the support rods are arranged alternately on both sides of the isolation body. The connection part of the support rod is attached to the isolation layer and connected by bolts and nuts, with the tip inserted into the soil.
[0017] Furthermore, the isolation layer is made of Teflon cloth, which includes a high-density glass fiber substrate and a polytetrafluoroethylene coating laminated on both sides of the substrate; the overall thickness of the Teflon cloth is 0.3mm to 0.5mm, the tensile strength of the high-density glass fiber substrate is ≥2000N / 5cm, and the hydrophobic angle of the PTFE coating is ≥120°.
[0018] Furthermore, the areal density of the high-density glass fiber substrate is 200g / m² to 300g / m², and the high-density glass fiber substrate has a plain weave structure.
[0019] Furthermore, the main body of the rod is designed as a rod with an isosceles triangle cross-section, and the connecting part is designed as a flat plate that can fit into the isolation body.
[0020] Furthermore, the bolt passes sequentially through the screw hole II of the connecting part of the support rod, the screw hole I of the isolation body, the washer, and the nut.
[0021] Furthermore, the gasket includes a silicone gasket and a glass fiber gasket, with the silicone gasket adhered to the isolation layer surrounding the screw hole I.
[0022] Furthermore, the top of the connecting part of the support rod, the top of the gasket, and the top of the isolation body are flush.
[0023] Furthermore, the support rod, bolt, and nut are all integrally molded from glass fiber reinforced composite material; the glass fiber reinforced composite material is composed of a glass fiber reinforcing phase and a resin matrix, and the resin matrix is at least one of epoxy resin and phenolic resin.
[0024] The beneficial effects of this invention are:
[0025] 1. One-time installation, benefits for many years
[0026] This isolation device features a simple structure and easy installation. Its main body, Teflon fabric, boasts excellent waterproof performance, superior durability, good mechanical strength, and outstanding high and low temperature resistance (-190℃~260℃), allowing for year-round use. The support rods, bolts, nuts, and washers are made of glass fiber reinforced material, whose extremely high strength and toughness, along with excellent weather resistance and corrosion resistance, ensure a long service life in agricultural environments. This isolation device requires virtually no maintenance, significantly reducing labor and farming costs.
[0027] 2. Does not breed weeds
[0028] The isolation structure is made of Teflon fabric, which does not breed weeds and eliminates the need for manual or chemical weed control, reducing labor time and farming costs, and minimizing the environmental harm caused by herbicides.
[0029] 3. Increase the area of land for planting
[0030] By filling in the drainage ditch and replacing it with this isolation device, water can be contained between two long, narrow paddy fields. Typically, filling in a 450-meter drainage ditch can increase the rice planting area by more than one acre, tapping into the land's potential, increasing grain production, and contributing positively to ensuring global food security.
[0031] 4. No replanting of seedlings is required on both sides of the isolation device.
[0032] To prevent the harvester from damaging the isolation device, seedlings cannot be replanted on both sides of the isolation device, thus reducing a significant amount of labor costs.
[0033] 5. Easy to manage
[0034] Designed and installed according to actual agricultural production needs, this makes our paddy fields more regular, provides smoother conditions for agricultural machinery operations, supports the promotion of large-scale unmanned agricultural machinery and vertical rice transplanting, and provides great support for the integrated management of paddy field fertilization, pesticide application, disease and pest control. Attached Figure Description
[0035] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0036] Figure 1 This is a schematic diagram of the structure of the present invention.
[0037] Figure 2 This is a schematic diagram of the structure of the isolation unit.
[0038] Figure 3 This is a schematic diagram of the support rod.
[0039] Figure 4 This is a side view of the support rod.
[0040] Figure 5 This is a schematic diagram illustrating the use of the present invention. Detailed Implementation
[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a paddy field isolation device includes a long strip-shaped isolation body 1 and multiple support rods 2. The isolation body 1 includes an isolation layer 1-1, which is made of Teflon cloth. Multiple screw holes Ⅰ1-2 are spaced apart on the upper end of the isolation layer 1-1.
[0042] The support rod 2 includes a rod body 2-1, the top end of the rod body 2-1 is provided with a connecting part 2-2 with a screw hole II, and the bottom end of the rod body 2-1 is a pointed tip 2-3;
[0043] The bottom of the isolation body 1 is buried in the soil, the support rods 2 are arranged alternately on both sides of the isolation body 1, the connecting part 2-2 is attached to the isolation layer 1-1 and connected by bolts and nuts, and the tip 2-3 is inserted into the soil.
[0044] The isolation layer 1-1 is made of Teflon cloth, which includes a high-density glass fiber substrate and a polytetrafluoroethylene coating on both sides of the substrate; the overall thickness of the Teflon cloth is 0.3mm to 0.5mm, the tensile strength of the high-density glass fiber substrate is ≥2000N / 5cm, and the hydrophobic angle of the PTFE coating is ≥120°.
[0045] The areal density of the high-density glass fiber substrate is 200g / m² to 300g / m², and the high-density glass fiber substrate has a plain weave structure.
[0046] The main body of the rod 2-1 is designed as a rod with an isosceles triangle cross-section, and the connecting part 2-2 is designed as a flat plate that can fit into the isolation body 1.
[0047] The bolt passes sequentially through the screw hole II of the connecting part 2-2, the screw hole I1-2 of the isolation body 1, the silicone gasket, the glass fiber gasket, and is connected to the nut.
[0048] The gasket includes a silicone gasket and a glass fiber gasket, and the silicone gasket is adhered to the isolation layer 1-1 around the screw hole I1-2.
[0049] The top of the connecting part 2-2 and the top of the gasket are flush with the top of the isolation body 1.
[0050] The support rod 2, bolts, and nuts are all integrally molded from glass fiber reinforced composite material; the glass fiber reinforced composite material is composed of glass fiber reinforcing phase and resin matrix, and the resin matrix is at least one of epoxy resin and phenolic resin.
[0051] like Figure 5 As shown, the paddy field isolation device 3 of the present invention is erected on the original filled drainage ditch, and is set between the water inlet branch line 4 and the drainage branch line 5. It isolates the paddy fields on both sides, so that the water inlet and drainage of the paddy fields on both sides are carried out in the water inlet ditch 6 and the water inlet ditch 7 respectively.
[0052] During installation, the bottom of the isolation body 1 is buried in the soil, and the support rods 2 are arranged alternately on both sides of the isolation body 1. The connecting part 2-2 of the support rod 2 is attached to the isolation layer 1-1 and connected by bolts and nuts. The tip 2-3 of the support rod 2 is inserted into the soil.
[0053] It is understood that the above specific description of the present invention is only for illustrating the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of the present invention.
Claims
1. A paddy field isolation device, characterized in that: It includes a long strip-shaped isolation body (1) and multiple support rods (2). The isolation body (1) includes an isolation layer (1-1), which is made of Teflon cloth. Multiple screw holes I (1-2) are provided at intervals on the upper end of the isolation layer (1-1). The support rod (2) includes a rod body (2-1), the top end of the rod body (2-1) is provided with a connecting part (2-2) with a screw hole II, and the bottom end of the rod body (2-1) is a pointed tip (2-3). The bottom of the isolation body (1) is buried in the soil, and the support rods (2) are arranged alternately on both sides of the isolation body (1). The connecting part (2-2) is attached to the isolation layer (1-1) and connected by bolts and nuts, and the tip (2-3) is inserted into the soil.
2. The paddy field isolation device according to claim 1, characterized in that: The isolation layer (1-1) is made of Teflon cloth, which includes a high-density glass fiber substrate and a polytetrafluoroethylene coating on both sides of the substrate; the overall thickness of the Teflon cloth is 0.3mm to 0.5mm, the tensile strength of the high-density glass fiber substrate is ≥2000N / 5cm, and the hydrophobic angle of the PTFE coating is ≥120°.
3. The paddy field isolation device according to claim 2, characterized in that: The areal density of the high-density glass fiber substrate is 200g / m² to 300g / m², and the high-density glass fiber substrate has a plain weave structure.
4. The paddy field isolation device according to claim 1, characterized in that: The main body of the rod (2-1) is designed as a rod with an isosceles triangle cross section, and the connecting part (2-2) is designed as a flat plate that can fit into the isolation body (1).
5. The paddy field isolation device according to claim 1, characterized in that: The bolts pass sequentially through the screw hole II of the connecting part (2-2) of the support rod (2), the screw hole I (1-2) of the isolation body (1), and the washer and nut.
6. The paddy field isolation device according to claim 5, characterized in that: The gasket includes a silicone gasket and a glass fiber gasket. The silicone gasket is adhered to the isolation layer (1-1) around the screw hole I (1-2).
7. The paddy field isolation device according to claim 5, characterized in that: The top of the connecting part (2-2) of the support rod (2) and the top of the gasket are flush with the top of the isolation body (1).
8. The paddy field isolation device according to claim 1, characterized in that: The support rod (2), bolts, and nuts are all integrally molded from glass fiber reinforced composite material; the glass fiber reinforced composite material is composed of glass fiber reinforcing phase and resin matrix, and the resin matrix is at least one of epoxy resin and phenolic resin.