A rice planting device suitable for saline-alkali soil improvement

Abstract

This application relates to a rice planting device suitable for saline-alkali land improvement, comprising an isolation component and a moving component. The moving component is mounted on the isolation component. The isolation component includes a concave plate, with a U-shaped plate fixed to the top surface of the concave plate. A square plate is fixed to the inner wall of the U-shaped plate, and multiple sets of flow channels are formed on the surface of the square plate. An impermeable membrane layer is provided on the top surface of the square plate. This application utilizes the U-shaped plate and square plate integrated on the surface of the concave plate to construct a multi-layer composite filtration system. The seamless barrier design of the impermeable membrane layer blocks the capillary migration of underground salt. Combined with a trapezoidal cross-section gravel drainage layer that is wider at the top and narrower at the bottom, it enhances the gravity flow efficiency. Precise adsorption pretreatment is achieved by relying on activated carbon fiber bundles fixed by a honeycomb grid. Selective sodium ion replacement is completed with the help of an ion exchange resin layer. The dynamic positioning of the concave plate within the L-plate is achieved through a sliding adjustment mechanism composed of sliding columns and convex columns.

Description

Technical Field

[0001] This application relates to the field of rice cultivation equipment, and in particular to a rice cultivation equipment suitable for saline-alkali land improvement. Background Technology

[0002] With increasingly scarce global arable land resources, the development and utilization of saline-alkali land as potential reserve arable land has become an important strategic direction for increasing agricultural production. Against this backdrop, rice, as my country's main food crop, is gradually expanding its planting boundaries into saline-alkali land. However, the unique soil physicochemical properties of saline-alkali land—including excessively high salt content, pH imbalance (abnormal pH values), and drastic diurnal temperature variations—pose a severe challenge to rice seedling growth. Currently, rice planting devices suitable for saline-alkali land improvement mainly include general-purpose rice planting devices such as greenhouses, plastic arched sheds, and simple seedbeds. While these can meet basic production needs in conventional farmland environments, their functional limitations become increasingly apparent in the specific application scenario of saline-alkali land. It is worth noting that even with the successful cultivation of seawater rice varieties with strong salt tolerance, the seedling stage remains a critical period of salt sensitivity. According to the International Rice Research Institute (IRRI) and related agronomic guidelines, the seedling stage of salt-tolerant varieties has more stringent threshold requirements for environmental conditions, especially requiring strict control of soil salinity and maintenance of a suitable dynamic balance of temperature and humidity.

[0003] Regarding the aforementioned technologies, the inventors believe that existing rice planting devices in saline-alkali land applications lack an effective structure to block the migration of underground salts to the planting area via capillary action, resulting in continuous harm to seedling growth due to soil salinization. Furthermore, the lack of modular adjustment mechanisms adapted to different growth stages makes it difficult to dynamically optimize the planting space layout. Utility Model Content

[0004] In order to address the fact that existing rice planting devices in saline-alkali land applications lack an effective structure to block the migration of underground salt to the planting area through capillary action, which leads to continuous damage to seedling growth due to soil salinization, and also lack modular adjustment mechanisms adapted to the needs of different growth stages, making it difficult to dynamically optimize the planting space layout, this application provides a rice planting device suitable for saline-alkali land improvement.

[0005] The rice planting device suitable for saline-alkali land improvement provided in this application adopts the following technical solution: A rice planting device suitable for saline-alkali land improvement includes an isolation component and a moving component. The moving component is installed on the isolation component. The isolation component includes a concave plate, and a U-shaped plate is fixed to the top surface of the concave plate. A square plate is fixed to the inner wall of the U-shaped plate, and multiple sets of guide grooves are formed on the surface of the square plate. An impermeable membrane layer is provided on the top surface of the square plate, and a gravel drainage layer is provided on the surface of the impermeable membrane layer. A honeycomb grid is provided on the top of the gravel drainage layer, and the interior of the honeycomb grid is filled with activated carbon fiber bundles. An ion exchange resin layer is provided on the surface of the activated carbon fiber bundles, and a partition is provided on the surface of the ion exchange resin layer. A threaded sleeve is fixed to the side surface of the concave plate, and a sleeve is threadedly connected to the inside of the threaded sleeve. A sliding groove is formed on the surface of both the sleeve and the threaded sleeve. A protruding post is movably connected to the inside of the sleeve, and a sliding post is fixed to the surface of the protruding post. Guide sleeves are installed on the side surface of the protruding post and the inner wall of the sleeve, and springs are sleeved on the surface of the guide sleeves.

[0006] Optionally, a reinforcing plate is fixed to the bottom surface of the concave plate, and a rectangular groove is formed on the side surface of the concave plate; the geomembrane layer is made of HDPE material. By adopting the above technical solutions, the reinforcing plate provides structural reinforcement to the concave plate, enhancing its resistance to compressive deformation. The HDPE geomembrane layer, with its excellent chemical corrosion resistance and high tensile strength, ensures that it maintains its complete barrier performance in a saline-alkali environment for a long time, thus physically blocking the migration path of underground salt.

[0007] Optionally, a drain pipe is fixed to the side surface of the U-shaped plate, and a control valve is installed on the surface of the drain pipe, with a connecting hose connected to the outside of the drain pipe. By adopting the above technical solution, the drain pipe extends axially along the U-shaped plate to form a continuous flow channel. The control valve can accurately regulate the drainage rate. The connecting hose adopts a flexible corrugated pipe structure, which not only ensures the airtightness of the drainage system, but also can be adapted to external drainage pipes of different specifications, realizing the directional discharge of excess water and salt solution and avoiding secondary back seepage.

[0008] Optionally, the moving component includes a box body disposed on the side surface of the concave plate, and an L-plate is fixed to the side surface of the box body. A rectangular block is fixed to the side surface of the box body, and casters are fixedly installed at the four corners of the bottom surface of the box body. By adopting the above technical solution, the box serves as the main load-bearing frame, the L-plate can support the concave plate, the rectangular block provides lateral limiting constraints, and the four corner-distributed moving wheels adopt a double-rim design, enabling the device as a whole to have flexible relocation capabilities.

[0009] Optionally, the side surface of the housing is provided with multiple sets of limiting holes, and a connecting block is fixed on the side surface of the housing. A threaded sleeve is fixed on the surface of the connecting block. A threaded post is provided inside the threaded sleeve. A bearing is fixedly installed at the bottom of the threaded post. A circular plate is fixed on the bottom surface of the bearing. A rubber block is fixed on the bottom surface of the circular plate.

[0010] By adopting the above technical solution, multiple sets of limiting holes are distributed vertically along the box body to provide multi-level adjustment positions for the concave plate. The threaded sleeve and the threaded column form a precision transmission pair. The bearing converts the rotational motion into the vertical pressure of the circular plate, and the rubber block generates moderate friction force, effectively preventing equipment displacement caused by uneven ground.

[0011] Optionally, the ion exchange resin layer is made of a strong acidic cation exchange resin, and the surface of the partition is in contact with the inner wall of the U-shaped plate.

[0012] By adopting the above technical solution, the strong acid cation exchange resin has high exchange capacity and selective adsorption characteristics, and can specifically capture harmful ions such as Na⁺ in irrigation water.

[0013] Optionally, the surface of the sliding column is in contact with the inner wall of the sliding groove, and the surface of the protruding column is in contact with the limiting hole.

[0014] By adopting the above technical solution, the precise positioning of the concave plate within the L-plate is achieved through the engagement / disengagement mechanism of the protruding post and the limiting hole. The return spring provides a constant preload, ensuring that the concave plate can maintain stable support in any adjustment position.

[0015] Optionally, the square plate and the concave plate are an integrated structure, and the protruding post penetrates the concave plate and extends to its exterior.

[0016] By adopting the above technical solution, the integral injection molding process of square and rectangular panels eliminates splicing gaps and improves the actual use effect.

[0017] In summary, this application includes at least one of the following beneficial technical effects: This invention provides a rice planting device suitable for saline-alkali land improvement. It utilizes a layered filtration system formed by a concave plate integrated with a U-shaped plate and a square plate. A seamlessly bonded impermeable membrane layer forms a physical barrier, preventing underground salt from migrating to the planting area via capillary action. The gravel drainage layer features a trapezoidal cross-section design, wider at the top and narrower at the bottom, utilizing gravitational potential energy differences for rapid flow guidance, thus improving the efficiency of excess water drainage. The activated carbon fiber bundles fixed by the honeycomb grid, with their high specific surface area, precisely adsorb organic matter, residual chlorine, and trace heavy metals in the water, effectively reducing the treatment load on the subsequent ion exchange resin layer. The ion exchange resin layer, through selective ion replacement reaction, fixes harmful sodium ions in the irrigation water to the resin phase, resulting in a lower measured EC value compared to traditional methods. The sliding adjustment mechanism consists of a sliding column, a convex column, and a spring. Through the engagement / disengagement mechanism of the convex column and the limiting hole, the concave plate is precisely positioned within the L-plate, meeting the space requirements of seedlings at different growth stages. This utility model provides a rice planting device suitable for saline-alkali land improvement. The device has a flexible relocation capability due to the universal wheel structure of the four corners of the bottom of the box. The circular plate driven by the threaded column and bearing forms a stable support surface through the rotation friction pair. The device can be locked immediately after it is in place, effectively preventing the equipment from shifting due to uneven ground. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is the front view of this utility model.

[0020] Figure 3 This is the bottom view of this utility model.

[0021] Figure 4 This is a partial side sectional view of the present invention.

[0022] Figure 5 This is a top sectional view of the present invention.

[0023] Figure 6 yes Figure 2 Enlarged view of point A in the image.

[0024] Explanation of reference numerals in the attached drawings: 1. Isolation component; 101. Concave plate; 102. U-shaped plate; 103. Square plate; 104. Diversion channel; 105. Geomembrane layer; 106. Crushed stone drainage layer; 107. Honeycomb grid; 108. Activated carbon fiber bundle; 109. Ion exchange resin layer; 110. Partition plate; 111. Threaded sleeve; 112. Sleeve; 113. Slide groove; 114. Protruding column; 115. Slide column ; 116, Guide sleeve; 117, Spring; 118, Reinforcing plate; 119, Rectangular groove; 120, Drain pipe; 121, Control valve; 2, Moving assembly; 201, Housing; 202, L-plate; 203, Rectangular block; 204, Moving wheel; 205, Limiting hole; 206, Connecting block; 207, Threaded sleeve II; 208, Threaded column; 209, Bearing; 210, Circular plate; 211, Rubber block. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0026] This application discloses a rice planting device suitable for saline-alkali land improvement. (Refer to...) Figure 1-6 A rice planting device suitable for saline-alkali land improvement includes an isolation component 1 and a moving component 2. The moving component 2 is installed on the isolation component 1. The isolation component 1 includes a concave plate 101, and a U-shaped plate 102 is fixed to the top surface of the concave plate 101. A square plate 103 is fixed to the inner wall of the U-shaped plate 102, and multiple sets of guide grooves 104 are formed on the surface of the square plate 103. An impermeable membrane layer 105 is provided on the top surface of the square plate 103, and a gravel drainage layer 106 is provided on the surface of the impermeable membrane layer 105. A honeycomb grid 107 is provided on the top of the gravel drainage layer 106, and the interior of the honeycomb grid 107 is filled with activated carbon fiber. The activated carbon fiber bundle 108 has an ion exchange resin layer 109 on its surface, a partition 110 on its surface, a threaded sleeve 111 fixed on the side surface of the concave plate 101, and a sleeve 112 connected to the inside of the threaded sleeve 111 by threads. The sleeve 112 and the threaded sleeve 111 both have grooves 113 on their surfaces. A protrusion 114 is movably connected to the inside of the sleeve 112, and a sliding post 115 is fixed on the surface of the protrusion 114. A guide sleeve 116 is installed on the side surface of the protrusion 114 and the inner wall of the sleeve 112. A spring 117 is sleeved on the surface of the guide sleeve 116.

[0027] A reinforcing plate 118 is fixed to the bottom surface of the concave plate 101, and a rectangular groove 119 is provided on the side surface of the concave plate 101. The geomembrane layer 105 is made of HDPE material.

[0028] A drain pipe 120 is fixed to the side surface of the U-shaped plate 102, and a control valve 121 is installed on the surface of the drain pipe 120. A connecting hose is connected to the outside of the surface of the drain pipe 120.

[0029] The moving component 2 includes a box 201 disposed on the side surface of the concave plate 101, and an L plate 202 is fixed on the side surface of the box 201, a rectangular block 203 is fixed on the side surface of the box 201, and a moving wheel 204 is fixedly installed at each of the four corners of the bottom surface of the box 201.

[0030] The side surface of the housing 201 has multiple sets of limiting holes 205, and a connecting block 206 is fixed on the side surface of the housing 201. A threaded sleeve 207 is fixed on the surface of the connecting block 206. A threaded post 208 is provided inside the threaded sleeve 207. A bearing 209 is fixedly installed at the bottom of the threaded post 208. A circular plate 210 is fixed on the bottom surface of the bearing 209. A rubber block 211 is fixed on the bottom surface of the circular plate 210.

[0031] The ion exchange resin layer 109 is made of a strong acidic cation exchange resin, and the surface of the partition 110 is in contact with the inner wall of the U-shaped plate 102.

[0032] The surface of the sliding post 115 is in contact with the inner wall of the sliding groove 113, and the surface of the protruding post 114 is in contact with the limiting hole 205.

[0033] The square plate 103 and the concave plate 102 are an integrated structure, and the protruding post 114 penetrates the concave plate 101 and extends to its exterior.

[0034] The implementation principle of a rice planting device suitable for saline-alkali land improvement according to an embodiment of this application is as follows: A concave plate 101 is provided with a U-shaped plate 102, and a square plate 103 is provided on the surface of the U-shaped plate 102. The U-shaped plate 102 is provided with a geomembrane layer 105, a gravel drainage layer 106, an activated carbon fiber bundle 108, and an ion exchange resin layer 109 in sequence from bottom to top. The geomembrane layer 105 forms a seamless barrier, completely cutting off the path of underground salt migration to the tray through capillaries. The gravel drainage layer 106 is laid with a trapezoidal cross section (wider at the top and narrower at the bottom) to accelerate the flow of excess water using gravity. The surface area of ​​the activated carbon fiber bundle 108 fixed by the honeycomb grid 107 adsorbs... The removal of organic matter, residual chlorine, and trace heavy metals from the water reduces the load on the subsequent resin. The ion exchange resin layer 109 fixes harmful sodium ions in the irrigation water into the resin phase, further reducing the EC value of the effluent. When it is necessary to adjust the position of multiple sets of concave plates 101, the sliding column 115 is slidable, which drives the convex column 114 to slide, thereby separating the convex column 114 from the limiting hole 205. At the same time, the concave plate 101 is slid into the interior of the L plate 202. The sliding column 115 is released, and the spring 117 pushes the convex column 114 to reset, so that the convex column 114 engages with the limiting hole 205. The position of the concave plate 101 can be adjusted, which is convenient for adjustment according to the length of the seedlings. The bottom of the housing 201 is equipped with four casters 204 to facilitate the overall displacement of the device. By rotating the threaded column 208, the threaded column 208 drives the bearing 209 to rotate, and the bearing 209 drives the circular plate 210 to rotate, so that the circular plate 210 contacts the ground and prevents the housing 201 from moving accidentally.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rice planting device suitable for saline-alkali land improvement, characterized in that: The system includes an isolation component (1) and a moving component (2). The moving component (2) is mounted on the isolation component (1). The isolation component (1) includes a concave plate (101), and a U-shaped plate (102) is fixed to the top surface of the concave plate (101). A square plate (103) is fixed to the inner wall of the U-shaped plate (102), and multiple sets of guide grooves (104) are opened on the surface of the square plate (103). A geomembrane layer (105) is provided on the top surface of the square plate (103), and a gravel drainage layer (106) is provided on the surface of the geomembrane layer (105). A honeycomb grid (107) is provided on the top of the gravel drainage layer (106), and the interior of the honeycomb grid (107) is filled with activated carbon fiber bundles (108). The surface of the fiber bundle (108) is provided with an ion exchange resin layer (109), the surface of the ion exchange resin layer (109) is provided with a partition (110), the side surface of the concave plate (101) is fixed with a threaded sleeve (111), and the inside of the threaded sleeve (111) is connected to a sleeve (112) by a thread. The surfaces of the sleeve (112) and the threaded sleeve (111) are both provided with a sliding groove (113). The inside of the sleeve (112) is movably connected with a protrusion (114), and the surface of the protrusion (114) is fixed with a sliding column (115). The side surface of the protrusion (114) and the inner wall of the sleeve (112) are both equipped with guide sleeves (116), and the surface of the guide sleeve (116) is fitted with a spring (117).

2. The rice planting device suitable for saline-alkali land improvement according to claim 1, characterized in that: The bottom surface of the concave plate (101) is fixed with a reinforcing plate (118), and a rectangular groove (119) is provided on the side surface of the concave plate (101). The geomembrane layer (105) is made of HDPE material.

3. The rice planting device suitable for saline-alkali land improvement according to claim 1, characterized in that: The side surface of the spiral plate (102) is fixed with a drain pipe (120), and a control valve (121) is installed on the surface of the drain pipe (120). A connecting hose is connected to the surface of the drain pipe (120).

4. A rice planting device suitable for saline-alkali land improvement according to claim 1, characterized in that: The moving component (2) includes a box (201) disposed on the side surface of the concave plate (101), and an L plate (202) is fixed on the side surface of the box (201), a rectangular block (203) is fixed on the side surface of the box (201), and a moving wheel (204) is fixedly installed at the four corners of the bottom surface of the box (201).

5. A rice planting device suitable for saline-alkali land improvement according to claim 4, characterized in that: The side surface of the housing (201) has multiple sets of limiting holes (205), and a connecting block (206) is fixed on the side surface of the housing (201). A threaded sleeve (207) is fixed on the surface of the connecting block (206). A threaded post (208) is provided inside the threaded sleeve (207). A bearing (209) is fixedly installed at the bottom of the threaded post (208). A circular plate (210) is fixed on the bottom surface of the bearing (209). A rubber block (211) is fixed on the bottom surface of the circular plate (210).

6. A rice planting device suitable for saline-alkali land improvement according to claim 1, characterized in that: The ion exchange resin layer (109) is made of a strong acid cation exchange resin, and the surface of the partition (110) is in contact with the inner wall of the U-shaped plate (102).

7. A rice planting device suitable for saline-alkali land improvement according to claim 1, characterized in that: The surface of the sliding column (115) is in contact with the inner wall of the sliding groove (113), and the surface of the protruding column (114) is in contact with the limiting hole (205).

8. A rice planting device suitable for saline-alkali land improvement according to claim 1, characterized in that: The square plate (103) and the concave plate (102) are an integrated structure, and the protruding post (114) penetrates the concave plate (101) and extends to its exterior.

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