Aquaculture pond water plant planting and fixing device

CN122603751APending Publication Date: 2026-08-21NANJING AGRICULTURAL UNIVERSITY
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Patent Information

Application Number
CN202610960076.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-30
Publication Date
2026-08-21

AI Technical Summary

Technical Problem

[0003]传统水草栽植方式通常采用直接扦插或使用简易网袋、竹竿等固定装置,这些方式在实际应用中存在诸多局限:一方面,池塘水位会因补水、降雨或蒸发而发生频繁变化,加之风浪和水流的持续冲击,容易导致水草根系松动、上浮甚至被冲走;另一方面,根系长期处于缺氧的底泥环境或深水区,极易发生烂根、黑根现象,严重影响水草的成活率与生长质量,因此,本领域技术人员提供了一种水产池塘水草栽植固定装置,以解决上述背景技术中提出的问题

Benefits of technology

[0018]1. In this invention, by adopting a structure in which the outer anchoring sleeve and the inner movable planting rod are slidably fitted together, the outer anchoring sleeve can fix the entire device in the aquaculture pond. Through the one-way valve on the piston sleeve of the inner movable planting rod, when the water level is low, air enters the outer anchoring sleeve from the top port of the inner movable planting rod through the one-way valve, and then exits through the water permeable hole or the anchor claw assembly, thereby achieving continuous improvement of the aquatic environment. When special environmental conditions cause large fluctuations in the water and air environment, the piston sleeve assists in pressing air or oxygen-enriched water into the root area at the bottom of the outer anchoring sleeve through the inner movable planting rod, thereby preventing root rot during the planting of aquatic plants.

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Abstract

The application relates to an aquatic pond water plant planting fixing device and belongs to the technical field of water plant planting. The aquatic pond water plant planting fixing device comprises an outer anchoring sleeve, an inner movable planting rod is slidably connected in the outer anchoring sleeve, an annular buoyancy seat is fixedly arranged at the top of the side wall of the inner movable planting rod, a plurality of cage racks are arranged in a circumferential array at the bottom of the annular buoyancy seat, an anchor jaw assembly for fixation is arranged at the bottom of the inner movable planting rod, the upper part of the pond is used for sending air or oxygen-rich water into the root area at the bottom of the outer anchoring sleeve, so that the root rotting during the water plant planting process is prevented, and the cooperation between the annular buoyancy seat and the cage rack is adopted, so that the water plant can be well positioned at a specified height in the water body and is not affected by the change of the water body.
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Description

Technical Field

[0001] This invention belongs to the field of aquatic plant cultivation technology, specifically relating to a device for fixing aquatic plants in aquatic ponds. Background Technology

[0002] In aquaculture, aquatic plants in ponds are one of the core elements for maintaining the ecological balance of the aquaculture water: submerged plants can absorb excess nutrients such as nitrogen and phosphorus in the water, inhibit the reproduction of harmful algae, and increase dissolved oxygen in the water; emergent plants and floating-leaved plants can provide habitats and shelters for fish, shrimp, and crabs, reduce stress responses in farmed organisms, and can also serve as spawning substrates for shrimp and crabs, improving the survival rate of seedlings; a properly matched aquatic plant community can also stabilize the pH of the water, buffer temperature fluctuations, and significantly reduce the probability of disease occurrence during the aquaculture process, making it an important supporting measure for healthy aquaculture.

[0003] Traditional methods of planting aquatic plants typically involve direct cuttings or the use of simple net bags, bamboo poles, or other fixing devices. These methods have several limitations in practical applications: Firstly, pond water levels fluctuate frequently due to water replenishment, rainfall, or evaporation, and the continuous impact of wind, waves, and currents can easily cause the roots of aquatic plants to loosen, float, or even be washed away. Secondly, the roots are constantly exposed to oxygen-deficient bottom mud or deep water, making them highly susceptible to root rot and blackening, which severely affects the survival rate and growth quality of aquatic plants. Therefore, those skilled in the art have provided a fixing device for planting aquatic plants in aquatic ponds to solve the problems mentioned in the background art. Summary of the Invention

[0004] The purpose of this invention is to provide a simple and reasonably designed aquatic plant planting and fixing device for aquatic ponds in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] A device for fixing aquatic plants in an aquatic pond includes an outer anchoring sleeve, an inner movable planting rod slidably connected inside the outer anchoring sleeve, an annular buoyancy seat fixedly provided at the top of the side wall of the inner movable planting rod, and a plurality of cages arranged in a circular array connected to the bottom of the annular buoyancy seat. An anchor claw assembly for fixing is provided at the bottom of the inner side of the outer anchoring sleeve.

[0007] The outer anchoring sleeve is also provided with a spline block inside, and a rotating shaft for transmission is provided between the spline block and the anchor claw assembly. The inner bottom end of the inner movable planting rod is provided with a spline sleeve for driving the spline block to rotate.

[0008] After the outer anchoring sleeve is inserted into the bottom of the aquaculture pond, the spline sleeve is fitted onto the side wall of the spline block. Through the transmission of the rotating shaft, the position of the anchor claw assembly on the outer anchoring sleeve is further fixed. After the aquatic plant seedlings are placed in the cage, the height between the annular buoyancy seat and the cage is adjusted so that the height between the cage and the water surface remains unchanged after the annular buoyancy seat floats on the water surface.

[0009] Preferably, a piston sleeve is sealed to the upper part of the inner wall of the inner movable planting rod, and a one-way valve is provided through one side of the top of the piston sleeve.

[0010] Preferably, the annular buoyancy seat includes a fixed frame that is fixedly connected to the side wall of the inner movable planting rod, a float with the inner movable planting rod as the axis is fixedly connected to the top of the fixed frame, and an adjustment module that cooperates with the cage frame is provided through the top of the fixed frame.

[0011] Preferably, the cage includes two grid plates, one of which is connected to the bottom of the adjustment module, and the bottom ends of the two grid plates are respectively fixedly connected to a chassis. Spring clips for adaptive adjustment of tension are provided on both sides of the two grid plates.

[0012] Preferably, the anchor claw assembly includes a fixed disk fixedly connected to the bottom end of the inner wall of the outer anchoring sleeve, a rotating block rotatably connected to the middle of the bottom end of the fixed disk and rotatably sleeved to the bottom end of the rotating shaft, a plurality of sliders arranged in a circumferential array slidably connected to the side wall of the fixed disk, an anchor rod slidably penetrating the inner wall of the outer anchoring sleeve fixedly connected to the side wall of the plurality of sliders, a plurality of connecting rods arranged in a circumferential array at the bottom end of the rotating block and rotatably connected to the bottom end of the sliders, and a connecting pipe fixedly connected to the top end of each of the plurality of sliders.

[0013] Preferably, the outer anchoring sleeve has a plurality of permeable holes arranged in a circular array on its side wall, and the inner wall of each permeable hole is provided with a filter screen.

[0014] Preferably, the bottom of the outer anchoring sleeve is closed and has a pointed tip that can be inserted into the bottom mud.

[0015] Preferably, the grid sheet is densely covered with square or diamond-shaped holes.

[0016] Preferably, the spline block has an inclined chamfer at its bottom end.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. In this invention, by adopting a structure in which the outer anchoring sleeve and the inner movable planting rod are slidably fitted together, the outer anchoring sleeve can fix the entire device in the aquaculture pond. Through the one-way valve on the piston sleeve of the inner movable planting rod, when the water level is low, air enters the outer anchoring sleeve from the top port of the inner movable planting rod through the one-way valve, and then exits through the water permeable hole or the anchor claw assembly, thereby achieving continuous improvement of the aquatic environment. When special environmental conditions cause large fluctuations in the water and air environment, the piston sleeve assists in pressing air or oxygen-enriched water into the root area at the bottom of the outer anchoring sleeve through the inner movable planting rod, thereby preventing root rot during the planting of aquatic plants.

[0019] 2. In this invention, aquatic plants are planted by using a combination of an annular buoyancy seat and a cage frame. The float ensures that the movable planting rod inside floats on the water surface. At the same time, the height of the cage frame above the water surface is adjusted by adjusting the height of the adjustment module on the fixed frame, so as to ensure that the aquatic plants can reach a good height in the water body at a specified height and will not be affected by changes in the water body. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure from another perspective of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the external anchoring sleeve of the present invention;

[0023] Figure 4 This is a schematic diagram of the connection structure between the outer anchoring sleeve and the inner movable planting rod of the present invention;

[0024] Figure 5 This is a cross-sectional schematic diagram showing the usage state of the outer anchoring sleeve and the inner movable planting rod of the present invention;

[0025] Figure 6 This is a schematic diagram of the installation of the annular buoyancy seat and the cage frame of the present invention;

[0026] Figure 7 This is a schematic diagram of the cage frame structure of the present invention;

[0027] Figure 8 This is a schematic diagram of the overall structure of the anchor claw assembly of the present invention;

[0028] Figure 9 This is a schematic diagram of the overall structure of the anchor rod and slider of the present invention.

[0029] In the diagram: 1. Outer anchoring sleeve; 2. Inner movable planting rod; 201. Piston sleeve; 202. One-way valve; 3. Annular buoyancy seat; 301. Float; 302. Fixing frame; 303. Adjustment module; 4. Cage frame; 401. Grid plate; 402. Spring clip; 403. Chassis; 5. Anchor claw assembly; 501. Fixing plate; 502. Anchor rod; 503. Connecting rod; 504. Slider; 505. Rotating block; 506. Connecting pipe; 6. Water permeable hole; 7. Rotating shaft; 8. Spline block; 9. Spline sleeve. Detailed Implementation

[0030] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0031] Example: Figure 1 , Figure 2 As shown, an aquatic plant planting and fixing device for aquatic ponds includes an outer anchoring sleeve 1, an inner movable planting rod 2 slidably connected inside the outer anchoring sleeve 1, an annular buoyancy seat 3 fixedly installed at the top of the side wall of the inner movable planting rod 2, and several cages 4 arranged in a circular array connected to the bottom of the annular buoyancy seat 3. An anchor claw assembly 5 for fixing is provided at the bottom of the inner side of the outer anchoring sleeve 1. The planting of aquatic plants is achieved by the cooperation between the annular buoyancy seat 3 and the cages 4. A spline block 8 is also provided inside the outer anchoring sleeve 1. A rotating shaft 7 for transmission is provided between the spline block 8 and the anchor claw assembly 5. A spline sleeve 9 for driving the spline block 8 to rotate is provided at the bottom of the inner side of the inner movable planting rod 2.

[0032] like Figure 1 - Figure 5 As shown, after the outer anchoring sleeve 1 is inserted into the bottom of the aquaculture pond, the spline sleeve 9 is fitted onto the side wall of the spline block 8. Through the transmission of the rotating shaft 7, the anchor claw assembly 5 further fixes the position of the outer anchoring sleeve 1. After the aquatic plant seedlings are placed in the cage frame 4, the height between the annular buoyancy seat 3 and the cage frame 4 is adjusted so that after the annular buoyancy seat 3 floats on the water surface, the height between the cage frame 4 and the water surface remains unchanged, so that the roots of the aquatic plants always obtain stable oxygen supply and precise positioning in the dynamic water environment.

[0033] like Figure 1 , Figure 2As shown, the outer anchoring sleeve 1 has several permeable holes 6 arranged in a circular array on its side wall. When the inner movable planting rod 2 pressurizes external air or oxygen-enriched water into the outer anchoring sleeve 1, the water can overflow from the permeable holes 6, thereby improving the aquatic environment of the planting area and thus increasing the survival rate of aquatic plants. The inner wall of the permeable holes 6 is equipped with a filter screen. The bottom of the outer anchoring sleeve 1 is closed and has a pointed tip that can be inserted into the bottom mud. The pointed tip facilitates the insertion of the outer anchoring sleeve 1 into the pond bottom mud. Furthermore, on the side wall of the outer anchoring sleeve 1, between the permeable holes 6 and the anchor claw assembly 5, there is a foot pedal that allows workers to drive the outer anchoring sleeve 1 into the bottom mud, effectively reducing the difficulty of operation.

[0034] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, Figure 1 , Figure 2 As shown, a sealing ring is fitted on the bottom side wall of the inner movable planting rod 2. The sealing ring ensures that the inner movable planting rod 2 is in a sealed state during the sliding process in the outer anchoring sleeve 1, so as to avoid affecting the subsequent root microcirculation respiration. A piston sleeve 201 is sealed and connected to the upper part of the inner wall of the inner movable planting rod 2. A one-way valve 202 is installed through one side of the top of the piston sleeve 201.

[0035] It should be noted that during use, the annular buoyancy seat 3 keeps the inner movable planting rod 2 floating on the water surface. In most cases, the water level in the aquaculture pond fluctuates little. At this time, air can enter from the top port of the inner movable planting rod 2 through the one-way flow principle of the one-way valve 202, and then be discharged through the water permeable hole 6 or the anchor claw assembly 5, thereby achieving continuous improvement of the aquatic environment. When the aquaculture pond encounters special circumstances such as rain, snow, typhoons, or water release, which cause large fluctuations in the water and air environment, the annular buoyancy seat 3 will undergo a large change in height. At this time, with the assistance of the piston sleeve 201, air or oxygen-enriched water is pressed into the root area at the bottom of the outer anchor sleeve 1 through the inner movable planting rod 2 to prevent root rot during the planting of aquatic plants.

[0036] like Figure 1 , Figure 2 and Figure 6 As shown, the annular buoyancy seat 3 includes a fixed frame 302 that is fixedly connected to the side wall of the inner movable planting rod 2. A float 301 with the inner movable planting rod 2 as the axis is fixedly connected to the top of the fixed frame 302. The fixed frame 302 is fixedly sleeved on the upper side wall of the inner movable planting rod 2. The float 301 is set above the fixed frame 302 to ensure that the annular buoyancy seat 3 floats on the water.

[0037] It should be noted that the buoyancy provided by the float 301 in the water is greater than the overall weight of the inner movable planting rod 2 and the fixed frame 302 after planting aquatic plants, as well as the frictional force generated by the sealing ring when the inner movable planting rod 2 slides in the outer anchor sleeve 1. This ensures that the float 301 makes the top of the inner movable planting rod 2 float on the water surface.

[0038] like Figure 1 , Figure 2 and Figure 6 As shown, an adjustment module 303 that cooperates with the cage frame 4 is installed through the top of the fixing frame 302. The adjustment module 303 is existing technology, and its structure consists of a screw and a limiting rod. The screw is threaded through the nut on the fixing frame 302, and the screw is rotatably connected to the top of the cage frame 4. By rotating the screw, the distance from the cage frame 4 to the bottom of the fixing frame 302 can be adjusted to ensure a good planting effect for aquatic plants. Aquatic plants need light for photosynthesis during the planting process. The general principle is that the planting depth of aquatic plants should be ≤ 2 to 3 times the water transparency. The suitable water depth range for submerged plants such as aquatic plants is 30 to 150 cm. The screw adjustment can fully ensure that the aquatic plants are at a suitable underwater height.

[0039] like Figure 1 , Figure 2 and Figure 6 As shown, the float 301 ensures that the movable planting rod 2 floats on the water surface. At the same time, by adjusting the height of the adjustment module 303 on the fixed frame 302, the height of the cage frame 4 above the water surface is adjusted to ensure that the aquatic plants can reach a good height in the water and will not be affected by changes in the water.

[0040] like Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the cage frame 4 includes two grid plates 401. The cage frame 4 is formed by two semi-cylindrical grid plates 401 joined together to form a hollow cylindrical root growth chamber. The grid plates 401 are densely covered with square or rhomboid holes, which allow the small fibrous roots to penetrate out and absorb nutrients from the water, while preventing the thick rhizomes and stolons from spreading outward in a disorderly manner, thus confining them inside the chamber.

[0041] like Figure 1 , Figure 2 , Figure 6 and Figure 7As shown, one of the grid plates 401 is connected to the bottom of the adjustment module 303, and the bottoms of the two grid plates 401 are respectively fixedly connected to the base plate 403. The base plate 403 is made of stone or corrosion-resistant metal to ensure that the cage frame 4 can be completely submerged in the water and float on the water surface with the help of the float 301 to ensure its height in the water. During the planting of aquatic plants in the cage frame 4, as the volume of the aquatic plants increases, the nutrients that the aquatic plants in the middle of the cage frame 4 can absorb gradually decrease. At the same time, as the volume of the aquatic plants increases, the living space decreases, and the roots of the aquatic plants are easily tangled together, which affects the division operation after the cultivation is completed, thus reducing the survival rate of the aquatic plants.

[0042] like Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, spring clips 402 for adaptive tension adjustment are provided on both sides of the two grid plates 401. The spring clips 402 are composed of limit pins and springs. During the growth of the planted aquatic plants, due to their volume change, they will generate an outward expansion force on the grid plates 401. As the expansion force is greater than the spring force, the two grid plates 401 can gradually separate, thereby increasing the planting space and effectively improving the survival rate.

[0043] like Figure 1 - Figure 5 , Figure 8 and Figure 9 As shown, the anchor claw assembly 5 includes a fixed disk 501 fixedly connected to the bottom end of the inner wall of the outer anchoring sleeve 1. A rotating block 505 rotatably connected to the middle of the bottom end of the fixed disk 501 is rotatably sleeved with the bottom end of the rotating shaft 7. A plurality of sliders 504 arranged in a circular array are slidably connected to the side wall of the fixed disk 501. An anchor rod 502 that slides through the inner wall of the outer anchoring sleeve 1 is fixedly connected to the side wall of the sliders 504. A plurality of connecting rods 503 arranged in a circular array at the bottom end of the rotating block 505 are rotatably connected to the bottom end of the sliders 504. During the process of the spline block 8 driving the rotating shaft 7 to rotate, the rotating shaft 7 will drive the rotating block 505 to rotate, so that the rotating block 505 is transmitted to the connecting rods 503, thereby allowing the anchor rod 502 to slide out from the side wall of the outer anchoring sleeve 1 and insert into the bottom mud, thereby achieving further fixation of the outer anchoring sleeve 1 and avoiding the impact of water flow, which could cause the device to shift.

[0044] like Figure 1 - Figure 5 , Figure 8 and Figure 9As shown, several sliders 504 are respectively fixedly connected to a connecting pipe 506 at their top ends. Both sliders 504 and anchor rods 502 are hollow structures that are connected. A connecting pipe 506 is provided at the top end of slider 504. Water or air is forced into the outer anchoring sleeve 1 through the inner movable planting rod 2. Some of the water or air will be forced into the connecting pipe 506, thereby further improving the environment at the bottom of the water body and improving the planting effect.

[0045] like Figure 1 - Figure 5 , Figure 8 and Figure 9 As shown, the bottom end of the spline block 8 has an inclined chamfer, and the inner wall diameter of the spline sleeve 9 is slightly larger than the outer diameter of the spline block 8, which facilitates a better fit between the spline block 8 and the spline sleeve 9. During use, the outer anchoring sleeve 1 and the inner movable planting rod 2 are stretched to their maximum limits, ensuring that the spline block 8 falls into the spline sleeve 9. At this point, rotating the inner movable planting rod 2 will cause the spline block 8 to rotate synchronously through the spline sleeve 9, thereby adjusting the anchor claw assembly 5. Simultaneously, the spline block 8 is located at the top of the inner wall of the outer anchoring sleeve 1, and the spline sleeve 9 is located at the lower end of the inner wall of the inner movable planting rod 2. Therefore, after installation, the inner movable planting rod 2 falls into the outer anchoring sleeve 1 due to gravity, at which point the spline block 8 and the spline sleeve 9 will separate, effectively preventing loosening.

[0046] It should be noted that the length of the outer anchoring sleeve 1 is approximately 0.7 times the depth of the aquaculture pond, while the length of the inner movable planting rod 2 is slightly shorter than the length of the outer anchoring sleeve 1. Therefore, the combined length of the outer anchoring sleeve 1 and the inner movable planting rod 2 can fully adapt to the rising water level of the aquaculture pond during normal use. There will be no situation where, during rising water levels, the spline block 8 and spline sleeve 9 need to re-engage, causing the anchor claw assembly 5 to retract and the outer anchoring sleeve 1 to detach from the bottom of the pond, effectively improving the overall safety of the device.

[0047] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A device for fixing aquatic plants in an aquatic pond, characterized in that, It includes an outer anchoring sleeve (1), an inner movable planting rod (2) is slidably connected inside the outer anchoring sleeve (1), an annular buoyancy seat (3) is fixedly provided at the top of the side wall of the inner movable planting rod (2), and a number of cages (4) arranged in a circular array are connected to the bottom of the annular buoyancy seat (3). An anchor claw assembly (5) for fixing is provided at the bottom of the inner side of the outer anchoring sleeve (1). The outer anchoring sleeve (1) is also provided with a spline block (8), and a rotating shaft (7) for transmission is provided between the spline block (8) and the anchor claw assembly (5). The inner bottom end of the inner movable planting rod (2) is provided with a spline sleeve (9) for driving the spline block (8) to rotate. After the outer anchoring sleeve (1) is inserted into the bottom of the aquaculture pond, the spline sleeve (9) is fitted onto the side wall of the spline block (8). Through the transmission of the rotating shaft (7), the position of the anchor claw assembly (5) on the outer anchoring sleeve (1) is further fixed. After the aquatic plant seedlings are placed in the cage (4), the height between the annular buoyancy seat (3) and the cage (4) is adjusted so that after the annular buoyancy seat (3) floats on the water surface, the height between the cage (4) and the water surface remains unchanged.

2. The aquatic plant planting and fixing device for aquatic ponds according to claim 1, characterized in that: The inner wall of the inner movable planting rod (2) is sealed with a piston sleeve (201) near the top, and a one-way valve (202) is provided through one side of the top of the piston sleeve (201).

3. The aquatic plant planting and fixing device for aquatic ponds according to claim 1, characterized in that: The annular buoyancy seat (3) includes a fixed frame (302) fixedly connected to the side wall of the inner movable planting rod (2). A float (301) with the inner movable planting rod (2) as the axis is fixedly connected to the top of the fixed frame (302). An adjustment module (303) that cooperates with the cage frame (4) is provided through the top of the fixed frame (302).

4. The aquatic plant planting and fixing device for aquatic ponds according to claim 1, characterized in that: The cage (4) includes two grid plates (401), one of which is connected to the bottom end of the adjustment module (303), and the bottom ends of the two grid plates (401) are respectively fixedly connected to the chassis (403). The two grid plates (401) are respectively provided with spring clips (402) for adaptive adjustment of tension on both sides.

5. The aquatic plant planting and fixing device for aquatic ponds according to claim 1, characterized in that: The anchor claw assembly (5) includes a fixed disk (501) fixedly connected to the bottom end of the inner wall of the outer anchor sleeve (1). The middle of the bottom end of the fixed disk (501) is rotatably connected to a rotating block (505) rotatably sleeved with the bottom end of the rotating shaft (7). The side wall of the fixed disk (501) is slidably connected to a plurality of sliders (504) arranged in a circular array. The side walls of the plurality of sliders (504) are fixedly connected to anchor rods (502) that slide through the inner wall of the outer anchor sleeve (1). The bottom end of the rotating block (505) is arranged in a circular array with a plurality of connecting rods (503) rotatably connected to the bottom end of the sliders (504). The top ends of the plurality of sliders (504) are respectively fixedly connected to a connecting pipe (506).

6. The aquatic plant planting and fixing device for aquatic ponds according to claim 1, characterized in that: The outer anchoring sleeve (1) has several permeable holes (6) arranged in a circular array on its side wall, and the inner wall of the permeable holes (6) is provided with a filter screen.

7. The aquatic plant planting and fixing device for aquatic ponds according to claim 1, characterized in that: The bottom of the external anchoring sleeve (1) is closed and has a tip that can be inserted into the bottom mud.

8. The aquatic plant planting and fixing device for aquatic ponds according to claim 4, characterized in that: The grid plate (401) is densely covered with square or diamond-shaped holes.

9. The aquatic plant planting and fixing device for aquatic ponds according to claim 1, characterized in that: The spline block (8) has an inclined chamfer at its bottom end.