CN114804364A - Liftable ecological bed that floats of submerged plant - Google Patents

Abstract

The invention relates to the field of water purification, and discloses a liftable submerged plant ecological floating bed, comprising at least one submerged plant planting floating body, the cross section of the submerged plant planting floating body is an inverted trapezoid, and the bottom of the submerged plant planting floating body is in the shape of an inverted trapezoid. A plastic net is laid, the bottom of the plastic net is provided with a biological ball string, the submerged plant planting floating body is provided with a submerged plant inside, and a base and a fixing rod are arranged below the submerged plant planting floating body, and the bottom block is connected to the bottom block. A lifting device is connected between the submerged plant planting floating bodies, and the elevating submerged plant ecological floating bed has a wide range of applications. The present invention basically does not consider the influence of water depth, sediment properties, river bottom and lake bottom materials, and water body transparency, and is assembled according to water quality and space conditions, and is relatively fixed, and steel bars or floating balls support the position of the floating body so that it is not easy to float with the current.

Description

A liftable submerged plant ecological floating bed

technical field

The invention relates to the field of water purification, in particular to a liftable submerged plant ecological floating bed.

Background technique

The restoration and reconstruction of aquatic plants plays an important role in the transformation of turbid water in freshwater ecosystems into clean water, and is the main measure for water ecological restoration. According to the lifestyle of aquatic plants, they are generally divided into the following categories: emergent plants, floating-leaf plants, submerged plants and floating plants, and wet plants, among which submerged plants have the best water ecological restoration effect. Submerged plants refer to large aquatic plants whose plant bodies are all located under the water layer and live sessively. The roots of submerged plants are underdeveloped or degraded, the roots, stems and leaves can absorb water and nutrients, and the ventilation tissue is particularly developed, which is conducive to their gas exchange in water, and also determines their important position in the aquatic ecosystem.

In the actual environment, the growth of submerged plants is limited by environmental factors such as water depth, temperature, pH, light and turbidity in the water body. The effective underwater light intensity is considered to be one of the most important factors affecting the growth and distribution of submerged plants. The lack of underwater light is the direct cause of the demise of submerged plants. Water depth and turbidity are the two main reasons that the change of underwater light intensity can weaken the effective underwater light intensity. In water, the attenuation of light depends on the wavelength light intensity and light quality, which both vary with the depth of the water body. As the water depth increases, the ratio of red light to far-red light increases, which will lead to changes in the morphology of submerged plants. At the same time, submerged plants are typical shade-loving plants. Too strong light will inhibit their photosynthesis and affect their normal growth and development. Different submerged plants have different water level tolerance limits, and the amplitude, frequency, timing, duration and rate of water level changes will all affect aquatic vegetation. As an in-situ restoration and control technology for eutrophic water bodies, ecological floating bed technology has been widely researched and applied. Ecological floating beds are generally planted with submerged plants, while existing submerged plant floating beds and submerged plant planting systems exist. Certain defects, such as the system in the patent CN201822072032.9, after the fixing rod is vertically fixed in the water body, the submerged plant planting frame is fixed at different heights of the fixing rod, so as to realize the planting of submerged plants in water bodies of different depths , to adjust the height of the floating bed underwater, which is cumbersome and inconvenient to operate. For example, in the floating bed in the patent CN202020358900.4, the anchor is suspended at the bottom of the submerged plant cage, and the weight of the anchor is adjusted according to the weight of the submerged plant floating bed, so that the submerged plant floating bed is located at a certain depth. Under the action of the floating ball and the anchor, the submerged plant cage can adjust itself up and down as the water level rises or falls; but the floating bed cannot be fixed, and the floating bed will float with the water flow.

The present invention proposes an ecological floating bed for submerged plants that effectively solves the above problems without considering the influence of water depth, sediment properties, river bottom and lake bottom materials, and water body transparency. The invention can adjust the depth of the floating bed in the water very simply and conveniently, and is assembled according to the water quality and space conditions, and is relatively fixed, and is not easy to float with the water flow. In addition, the submerged plant ecological floating bed plant is firmly planted, and the submerged plant is not easy to fall off at the initial stage of planting and when the water flow is large. The ceramsite biosphere is suspended at the bottom. The surface of the ceramsite biosphere is complex and has a large specific surface area. An oxygen-deficient environment is formed inside. The film hanging speed is fast, and it is not easy to fall off. The water purification ability is strong. Ecological floating bed of submerged plants.

SUMMARY OF THE INVENTION

(1) Technical problems solved

Aiming at the deficiencies of the prior art, the present invention provides an ecological floating bed for submerged plants that can be raised and lowered, which solves the above problems.

(2) Technical solutions

In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a liftable submerged plant ecological floating bed, comprising at least one submerged plant planting floating body, the cross section of the submerged plant planting floating body is an inverted trapezoid, and the submerged plant planting floating body is an inverted trapezoid. The bottom of the planting floating body is laid with a plastic net, the bottom of the plastic net is provided with a biological ball string, the interior of the submerged plant planting floating body is provided with submerged plants, and a base and a fixing rod are arranged below the submerged plant planting floating body, so the A lifting device is connected between the bottom block and the submerged plant planting floating body.

Preferably, the fixing rod and the base are integrally formed, the fixing rod is inserted into the bottom mud, the base base is made of concrete, and the lower half is a cuboid, 60 cm long, 60 cm wide, and 10 cm high. The four fixed rods are twenty centimeters long, and the concrete fixed rods with a diameter of four centimeters are embedded in the bottom mud. .

Preferably, the biological ball string includes at least two biological balls and a nylon string, each group of biological balls is connected in series by the nylon string, and the top of the nylon string is fixedly connected to the plastic net.

Preferably, the biosphere is composed of an upper hemisphere and a lower hemisphere, the upper hemisphere at the top is provided with an inner helix, the lower hemisphere at the bottom is provided with an outer helix, and the upper hemisphere and the lower hemisphere are connected by the outer helix and the inner helix. Together, a ring is installed on the upper and lower hemispheres, the nylon string is passed through the ring, the diameter of the biosphere is six centimeters, the plastic material, the thickness is one centimeter, the whole is hollowed out, filled with ceramsite, and the inner spiral Inside the upper hemisphere, the height is one centimeter, and the outer spiral is outside the lower hemisphere, one centimeter high. When connecting the bio-balls, the nylon string is passed through the ring and knotted to fix the position of each bio-ball on the bio-ball to form a bio-ball string.

Preferably, the area of the plastic mesh is the same as the top surface of the submerged plant planting floating body, the mesh diameter is 0.5 centimeters, and two buckles symmetrically distributed at a distance of 60 centimeters are fixed on the left and right sides of the plastic mesh, and the plastic meshes are connected by means of buckles. together to form the entire floating bed.

Preferably, the shape of the submerged plant planting floating body is one meter long at the top, one meter wide, one meter long at the bottom, 0.6 meters wide, and 0.3 meters high, and the material of the submerged plant planting floating body is rigid foam, and the surface Filled with holes with a diameter of 0.5 cm, barbed wooden poles are installed on the bottom inner wall of the submerged plant planting floating body, and the barbed wooden poles are arranged in a six-by-six arrangement. At 20 degrees, the submerged plant planting floating body is filled with a ceramsite layer, and the ceramsite layer is filled with a thickness of 18 cm. The top of the ceramsite layer is filled with a gravel layer, and the filling thickness of the gravel layer is 7 cm. Plants are planted on a gravel layer.

Preferably, when the water depth is 2 to 3.5 meters: the top of the base is fixedly installed with steel bars, the lifting device is arranged on the top of the steel bars, the surface of the steel bars is covered with a plastic film, the ends of the steel bars are connected to the base, fixed on the bottom of the water, and the upper ends of the steel bars Fifty centimeters above the water.

Preferably, a pulley is installed at one end of the steel bar close to the base, and a thick nylon rope is sleeved on the pulley, and one end of the thick nylon rope is fixedly installed at the bottom of the plastic mesh, and the inside of the submerged plant planting floating body is provided with two Plastic tube, the steel bar extends to the top of the submerged plant planting floating body through the plastic tube, the nylon thick rope is connected with the lifting device through the plastic tube, the plastic net is installed with a buckle corresponding to the position of the plastic tube, and the pulley is located between the base and the lifting device. Ten centimeters above the steel connection.

Preferably, the lifting device includes a horizontal bar, a knob and a hollow vertical bar, the horizontal bar is fixedly installed on the steel bar, the hollow vertical bar is fixedly installed on the horizontal bar, and the upper end of the nylon thick rope passing through the plastic tube extends upwards To the inside of the hollow vertical rod, the upper end of the thick nylon rope is knotted and connected to the round cover, and the round cover is attached to the top of the hollow vertical rod. The thick nylon rope inside the vertical rod, and the horizontal rod is located twenty centimeters down from the top of the steel bar.

Preferably, when the water depth is more than 3.5 meters or the riverbed terrain is rugged: a pulley is fixedly installed on the top of the base, a nylon thick rope is installed on the pulley, one end of the nylon thick rope is fixedly connected with the plastic net, and the nylon thick rope The other end extends upward around the pulley and is fixedly connected with the lifting device.

Preferably, the lifting device comprises a floating ball, a hollow vertical rod and a knob, the floating ball floats on the water surface, one end of the nylon thick rope extends upward through the floating ball, the hollow vertical rod is fixedly installed on the surface of the floating ball, the nylon The thick rope passes through the hollow vertical rod, the nylon thick rope passes through one end of the hollow vertical rod and a round cover is fixedly installed, the side wall surface of the hollow vertical rod is threadedly connected with a knob, and the knob squeezes the nylon thick rope inside the hollow vertical rod.

(3) Beneficial effects

Compared with the prior art, the present invention provides a liftable submerged plant ecological floating bed, which has the following beneficial effects:

1. The adjustable submerged plant ecological floating bed has a wide range of applications. The present invention basically does not consider the influence of water depth, bottom mud properties, river bottom lake bottom material, and water body transparency, and is assembled according to water quality and space conditions, which is relatively fixed, and steel bars or floating balls support the position of the floating body, so that it is not easy to float with the current.

2. The elevating submerged plant ecological floating bed is convenient for planting and harvesting of submerged plants. By turning the knob on the vertical short rod, the staff can pull the rope to change the height of the floating bed; put the thick rope down, the floating bed can be raised, and the thick rope can be pulled up to make the floating bed descend. After tightening the knob, the floating bed can be fixed in place. If the position of the floating ball is fixed, the height of the floating bed can be adjusted by simply pulling the thick rope at the slip knot at the top of the floating ball, which is convenient for planting and harvesting of submerged plants.

3. The liftable submerged plant ecological floating bed has a strong ability to restore the water body ecosystem. The roots of submerged plants are underdeveloped or degraded, and their roots, stems and leaves can absorb water and nutrients, and the ventilation tissue is particularly developed, which is conducive to gas exchange in an environment lacking air in water, and ceramsite biospheres are suspended at the bottom. The surface voids are complex, the specific surface area is large, an oxygen-deficient environment is formed inside, the film hanging speed is fast, and it is not easy to fall off, and the water purification ability is strong.

4. The elevating submerged plant ecological floating bed has a simple structure and is easy to popularize. It is composed of steel bars, floating balls, floating beds, bases, etc., which is convenient and quick to assemble.

Description of drawings

1 is a schematic diagram of the present invention after the installation of a submerged plant floating bed at a water depth of 2-3.5m;

Fig. 2 is the side sectional schematic diagram of the submerged plant floating bed of the present invention when the water depth is 2-3.5m;

Fig. 3 is the base schematic diagram of the present invention when the water depth is 2-3.5m;

Fig. 4 is the sectional schematic diagram of the present invention in the water depth 2-3.5m submerged plant planting floating body;

Fig. 5 is the structure schematic diagram of the present invention in the water depth of 2-3.5m fixing device;

6 is an effect diagram of the present invention after the installation of the submerged plant floating bed when the terrain of the river bed is rugged or the water depth exceeds 3.5m;

Fig. 7 is the side profile schematic diagram of the submerged plant planting floating bed when the riverbed terrain of the present invention is rugged or the water depth exceeds 3.5m;

Fig. 8 is the schematic diagram of the top of the float ball and the lifting device of the present invention;

Fig. 9 is the structural representation of the floating ball of the present invention;

Figure 10 is a schematic diagram of a ring;

Figure 11 is a schematic diagram of the biological solution.

In the picture: 1. Steel bar; 2. Hollow vertical rod; 3. Knob; 4. Horizontal rod; 5. Submerged plant planting floating body; 6. Plastic net; 7. Bioball; 8. Thick nylon rope; 9. Thin nylon Rope; 10, pulley; 11, base; 12, fixed rod; 13, submerged plant; 14, buckle; 15, barbed wood rod; 16, gravel layer; 17, ceramsite layer; 18, dome cover; 19 , plastic tube; 20, upper hemisphere; 21, outer spiral; 22, lower hemisphere; 23, inner spiral; 24, ring; 25, floating ball.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to Fig. 1-11, a liftable submerged plant ecological floating bed, including at least one submerged plant planting floating body 5, the cross section of the submerged plant planting floating body 5 is an inverted trapezoid, and the bottom of the submerged plant planting floating body 5 is laid with Plastic net 6, the bottom of the plastic net 6 is provided with a biological ball string, the interior of the submerged plant planting floating body 5 is provided with submerged plants 13, and the bottom of the submerged plant planting floating body 5 is provided with a base 11 and a fixed rod 12, and the bottom block is connected to the submerged plant. A lifting device is connected between the floating bodies 5 for planting water plants.

Further, the fixing rod 12 is integrally formed with the base 11, the fixing rod 12 is inserted into the bottom mud, the base base 11 is made of concrete, and the lower part is a rectangular parallelepiped, 60 cm long, 60 cm wide, and 10 cm high, and the lower part is a rectangular parallelepiped. The four fixed rods 12 are twenty centimeters long and four centimeters in diameter are embedded in the bottom mud. prismatic.

Further, the biological ball string includes at least two biological balls 7 and nylon strings 9. Each group of biological balls 7 is connected in series through the nylon strings 9. The tops of the nylon strings 9 are fixedly connected with the plastic net 6. The biological balls 7 are arranged in a line.

Further, the biosphere 7 is composed of an upper hemisphere 20 and a lower hemisphere 22. The upper hemisphere 20 located above is provided with an inner helix 23, and the lower hemisphere 22 located below is provided with an outer helix 21. The upper hemisphere 20 and the lower hemisphere 22 pass through. The outer helix 21 and the inner helix 23 are screwed together, a ring 24 is installed on the upper hemisphere 20 and the lower hemisphere 22, the nylon string 9 passes through the ring 24, and the biosphere 7 has a diameter of six centimeters, a plastic material, and a thickness of one centimeter. , the whole is hollowed out and filled with ceramsite, the inner spiral 23 is inside the upper hemisphere 20, with a height of one centimeter, and the outer spiral 21 is outside the lower hemisphere 22, with a height of one centimeter. When connecting the bio-balls 7, the nylon string 9 is passed through the ring 24 and then knotted to fix the position of each bio-ball 7 on the bio-ball 7 to form a bio-ball string.

Further, the area of the plastic mesh 6 is the same as the top surface of the submerged plant planting floating body 5, the mesh diameter is 0.5 centimeters, and two buckles symmetrically distributed at a distance of 60 centimeters are fixed on the left and right sides of the plastic mesh 6. Connected together by snaps to form the entire floating bed.

Further, the shape of the submerged plant planting floating body 5 is that the top surface is one meter long, one meter wide, and the bottom surface is one meter long, 0.6 meters wide, and 0.3 meters high. The submerged plant planting floating body 5 is made of rigid foam material. , the surface is covered with holes with a diameter of 0.5 centimeters, and the bottom inner wall of the submerged plant planting floating body 5 is equipped with a barbed wooden pole 15. The barbed wooden pole 15 is arranged in a six-by-six arrangement. The inclination angle between the thorn and the surface of the rod body is 20 degrees, the submerged plant planting floating body 5 is filled with a ceramsite layer 17, the ceramsite layer 17 is filled with a thickness of 18 cm, and the top of the ceramsite layer 17 is filled with a gravel layer 16, and the gravel layer The filling thickness of 16 is seven centimeters, and submerged plants 13 are planted on the gravel layer 16 .

Further, when the water depth is 2 to 3.5 meters: the top of the base 11 is fixedly installed with the steel bar 1, the lifting device is arranged on the top of the steel bar 1, the surface of the steel bar 1 is covered with a plastic film, the end of the steel bar 1 is connected with the base 11, and is fixed on the base 11. At the bottom of the water, the upper end of the steel bar 1 is 50 cm above the water surface.

Further, a pulley 10 is installed at one end of the steel bar 1 close to the base 11, a nylon thick rope 8 is sleeved on the pulley 10, and one end of the nylon thick rope 8 is fixedly installed at the bottom of the plastic mesh 6, and the interior of the submerged plant planting floating body 5 is provided with Two plastic pipes 19, the steel bar 1 extends to the top of the submerged plant planting floating body 5 through the plastic pipe 19, the nylon thick rope 8 is connected with the lifting device through the plastic pipe 19, and the plastic net 6 is installed with the plastic pipe 19. The buckle 14 and the pulley 10 are located ten centimeters above the connection between the base 11 and the steel bar 1 .

Further, the lifting device includes a horizontal bar 4, a knob 3 and a hollow vertical bar 2, the horizontal bar 4 is fixedly installed on the steel bar 1, the hollow vertical bar 2 is fixedly installed on the horizontal bar 4, and the nylon thick rope 8 passing through the plastic tube 19 is fixed. The upper end extends upward to the interior of the hollow vertical rod 2, the upper end of the thick nylon rope 8 is knotted and connected to the round cover 18, the round cover 18 is fitted with the top of the hollow vertical rod 2, and the side wall surface of the hollow vertical rod 2 is threadedly connected with Knob 3, the knob 3 squeezes the thick nylon rope 8 located inside the hollow vertical rod 2, and the horizontal rod 4 is located twenty centimeters down from the top of the steel bar 1.

Further, when the water depth is more than 3.5 meters or the riverbed terrain is rugged: a pulley 10 is fixedly installed on the top of the base 11, a thick nylon rope 8 is installed on the pulley 10, and one end of the thick nylon rope 8 is fixedly connected with the plastic net 6 together, The other end of the thick nylon rope 8 extends upward around the pulley 10 and is fixedly connected with the lifting device.

Further, the lifting device includes a floating ball 25, a hollow vertical rod 2, a knob 3, the floating ball 25 floats on the water surface, one end of the nylon thick rope 8 extends upward through the floating ball 25, and the hollow vertical rod 2 is fixedly installed on the surface of the floating ball 25. , the nylon thick rope 8 passes through the hollow vertical rod 2, the nylon thick rope 8 passes through one end of the hollow vertical rod 2 and a round cover 18 is fixedly installed, and the side wall surface of the hollow vertical rod 2 is threadedly connected with a knob 3, and the knob 3 is squeezed to the hollow vertical rod. Thick nylon rope 8 inside rod 2.

Working principle: For the above two lifting devices, the staff can turn the knob 3 to reduce the force of the knob 3 on the nylon thick rope 8, so that the nylon thick rope 8 can be pulled to lower the height of the submerged plant planting floating body 5; 8. Putting it down can raise the height of the submerged plant planting floating body 5, and then tighten the knob 3 to fix the submerged plant planting floating body 5 in a proper position. It is convenient for planting and harvesting of submerged plants.

When the water depth is two to three and a half meters, the staff firmly inserts the fixing rods 12 on the bases 11 at both ends into the bottom mud, and then uses the snaps to connect the plastic nets 6 at the bottom of the two submerged plant planting floating bodies 5, thereby Add additional submerged plant planting floats at both ends. Finally, adjust the nylon thick rope 8 at the knob on the top of the steel bar 1 according to the water level, so that the floating bed is at a suitable water depth, and then use the knob 3 to fix the nylon thick rope 8.

When the water depth is more than 3.5 meters or the riverbed terrain is rugged, the staff firmly inserts the fixing rods 12 on the bases 11 at both ends into the bottom mud, and then uses the buckle to connect the plastic nets 6 at the bottom of the two submerged plant planting floating bodies 5 stand up. Finally, adjust the nylon thick rope 8 at the knob on the top of the steel bar 1 according to the water level, so as to add additional submerged plant planting floating bodies at both ends. Finally, adjust the length of the thick nylon rope 8 passing through the floating ball 25 according to the water level, so that the floating bed is at a suitable water depth, and then use the knob 3 to fix the thick nylon rope 8 well.

Because the base 11 is made of concrete, which is stable and reliable, even if the bottom of the water is rough and has a large slope, it will not affect the normal operation of the floating bed. After the installation is completed, the staff adjust the position of the floating bed according to the changes of the water level in different periods, so that the submerged plants can grow in the appropriate water depth.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. a liftable submerged plant ecological floating bed, comprising at least one submerged plant planting floating body (5), the submerged plant planting floating body (5) cross section is an inverted trapezoid, it is characterized in that: the submerged plant planting floating body The bottom of (5) is laid with a plastic net (6), the bottom of the plastic net (6) is provided with a biological ball string, and the interior of the submerged plant planting floating body (5) is provided with submerged plants (13). A base (11) and a fixing rod (12) are arranged below the water plant planting floating body (5), and a lifting device is connected between the bottom block and the submerged plant planting floating body (5). 2 . An ecological floating bed for submerged plants that can be raised and lowered according to claim 1 , wherein the fixing rod ( 12 ) and the base ( 11 ) are integrally formed. 3 . 3. a kind of adjustable submerged plant ecological floating bed according to claim 1, is characterized in that: biological ball string comprises at least two biological balls (7) and nylon string (9), each group of biological balls (7) ) are connected in series by nylon strings (9), and the top ends of the nylon strings (9) are fixedly connected with the plastic net (6). 4. A kind of adjustable submerged plant ecological floating bed according to claim 3, characterized in that: the biological ball (7) is composed of an upper hemisphere (20) and a lower hemisphere (22), and is located in the upper The hemisphere (20) is provided with an inner helix (23), the lower hemisphere (22) located below is provided with an outer helix (21), and the upper hemisphere (20) and the lower hemisphere (22) pass through the outer helix (21) and the inner helix ( 23) screwed together, a ring (24) is installed on the upper hemisphere (20) and the lower hemisphere (22), and the nylon string (9) passes through the ring (24). 5. a kind of adjustable submerged plant ecological floating bed according to claim 1 is characterized in that: the area of described plastic net (6) is the same as the top surface of submerged plant planting floating body (5), and the mesh diameter is zero At a distance of five centimeters, the left and right sides of the plastic mesh (6) are fixed with two snaps symmetrically distributed sixty centimeters apart. 6. a kind of liftable submerged plant ecological floating bed according to claim 1 is characterized in that: the submerged plant planting floating body (5) is made of rigid foam material, and the surface is covered with holes of 0.5 centimeters in diameter, A barbed wood pole (15) is installed on the bottom inner wall of the submerged plant planting floating body (5). ) is filled with a ceramsite layer (17), the filling thickness of the ceramsite layer (17) is 18 cm, the top of the ceramsite layer (17) is filled with a gravel layer (16), and the filling thickness of the gravel layer (16) For seven centimeters, submerged plants (13) are planted on the gravel layer (16). 7. A kind of liftable submerged plant ecological floating bed according to claim 1, characterized in that: the top of the base (11) is fixedly installed with steel bars (1), and the steel bars (1) are close to the bottom of the base (11). A pulley (10) is installed at one end, and a thick nylon rope (8) is sleeved on the pulley (10). Two plastic pipes (19) are arranged inside (5), the steel bars (1) extend to the top of the submerged plant planting floating body (5) through the plastic pipes (19), and the thick nylon rope (8) passes through the plastic pipes (19). ) is connected with the lifting device, and the plastic net (6) is provided with a buckle (14) corresponding to the position of the plastic pipe (19). 8. A liftable submerged plant ecological floating bed according to claim 7, characterized in that: the lifting device comprises a horizontal bar (4), a knob (3) and a hollow vertical bar (2), the horizontal The rod (4) is fixedly installed on the steel bar (1), the hollow vertical rod (2) is fixedly installed on the horizontal rod (4), and the upper end of the thick nylon rope (8) passing through the plastic pipe (19) extends upward to the hollow Inside the vertical rod (2), the upper end of the thick nylon rope (8) is knotted and fixedly connected to the round cover (18), and the round cover (18) is attached to the top of the hollow vertical rod (2), and the hollow vertical rod (2) is attached. A knob (3) is threadedly connected to the side wall surface of the rod (2), and the knob (3) squeezes a thick nylon rope (8) located inside the hollow vertical rod (2). 9. A kind of liftable submerged plant ecological floating bed according to claim 1, characterized in that: a pulley (10) is fixedly installed on the top of the base (11), and a thick nylon rope (10) is installed on the pulley (10). 8), one end of the nylon thick rope (8) is fixedly connected with the plastic net (6), and the other end of the nylon thick rope (8) is extended upward around the pulley (10) and is fixedly connected with the lifting device. 10. The ecological floating bed for submerged plants that can be raised and lowered according to claim 9, wherein the lifting device comprises a floating ball (25), a hollow vertical rod (2), a knob (3), and a floating ball (25). 25) Floating on the water surface, one end of the thick nylon rope (8) extends upward through the floating ball (25), the hollow vertical rod (2) is fixedly installed on the surface of the floating ball (25), and the thick nylon rope (8) Passing through the hollow vertical rod (2), the thick nylon rope (8) passes through one end of the hollow vertical rod (2) and is fixedly installed with a round cover (18), and the side wall surface of the hollow vertical rod (2) is threadedly connected with a knob (3). ), the knob (3) squeezes the thick nylon rope (8) inside the hollow vertical rod (2).

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