WO2020073455A1 - Mobile device for in-situ water quality remediation and landscaping - Google Patents

Abstract

Disclosed is a mobile device for in-situ water quality remediation and landscaping, comprising a floating bed frame module (100), a floating bed encasing module (120), a floating bed filling module, and an encasing module (170) for planting terrestrial plants. The floating bed frame module (110) and the floating bed filling module are embedded in the floating bed encasing module (120). The floating bed encasing module (120) is provided with a plurality of recesses (123) for planting aquatic plants. The encasing module (170) for planting terrestrial plants is sleeved on an opening edge (1233) of the recesses (123) for planting aquatic plants. The floating bed encasing module (120) has an enclosure member (124), the enclosure member (124) comprising a first enclosure component (1241) and a second enclosure component (1242). The first enclosure component (1241), the opening edge (1233), and a lateral wall (1232) of the recesses (123) for planting aquatic plants define a filling gap for accommodating the floating bed filling module, and the second enclosure component (1242) divides the filling gap (160) into a first accommodation space (161) and a second accommodation space (162).

Description

Movable in-situ water quality purification landscape device Technical field

The invention belongs to the technical field of water body purification equipment, in particular to a movable in-situ water quality purification landscape device.

Background technique

With the increase of population, the acceleration of urbanization and industrial and agricultural production, serious water pollution has been caused, especially the eutrophication of water bodies has become a public hazard. The eutrophication of water has led to the decline or even loss of water ecological service functions. Not only has the deterioration of water quality caused a series of harms, but the landscape has also been severely damaged. In order to control the eutrophication trend of water bodies, various physical, chemical and biological control and restoration technologies are constantly emerging. Among them, phytoremediation technology is highly valued by governments, science and technology circles and business circles all over the world because of its more adaptability to the requirements of environmental protection, especially It is an aquatic plant ecological floating bed restoration technology that takes into account both water environment management and water ecological restoration.

The aquatic plant ecological floating bed repair technology has very obvious advantages, and it is getting more and more attention in the repair of water environments such as rivers, lakes and reservoirs in the city, and it continues to play its active role. Mainly manifested in the following aspects: 1. Improve water quality, create a suitable habitat for the survival of aquatic organisms, and create conditions for the restoration of water ecosystems; 2. Green the water surface, beautify the water environment, remove water black and smell, improve water transparency, fish and shrimp Regression; 3. No need to occupy land, not restricted by the river bank, and not restricted by the water depth in the water body; 4. Low treatment cost, simple process and convenient operation, is a very effective method of current river management.

However, most ecological floating beds in the prior art have the following problems: 1. troublesome installation and replacement; 2. insufficient wind and wave resistance and short service life; 3. single planting area, prone to floating; 4. floating bed floating body function Single; 5. The root system of plants is easily destroyed by aquatic plants; 6. Floating bed plants are mainly aquatic plants, and the available plants are limited, and it is easy to wither and die in winter.

The documents "An ecological floating bed, (Patent No. 2015200974865)" and the document "A functionally enhanced ecological floating bed, (Patent No. 2015101744916)" solve the above problems, but do not solve the problem of terrestrial plants applied to the floating bed. ; And part of the ecological floating bed is only used as a floating body support, and the planting of the plant requires an additional planting basket; in addition, because the ecological floating bed needs to rely on plant growth, root microbial activity and plant harvesting for water purification, water recovery is slow, the time is long, and the season big different.

Summary of the invention

In view of the above-mentioned shortcomings in the prior art, the present invention provides a mobile in-situ water purification landscape device.

In order to achieve the above objectives, the preferred solutions adopted by the present invention are:

A movable in-situ water purification landscape device includes a floating bed frame module, a floating bed filling module, and a floating bed kit module for nesting floating bed frame modules and floating bed filling modules; the floating bed filling module includes a first filling module and a second filling module The floating bed frame module has a plurality of first communication holes arranged at intervals, and the axis lines of the plurality of first communication holes are arranged in parallel; the floating bed kit module is concavely provided with a plurality of spaced aquatic plant growing tanks, the aquatic plant growing tanks one by one Correspondingly recessed and penetrating through the first communication hole; the floating bed kit module has multiple sets of surrounding components, and the surrounding components are correspondingly arranged in the aquatic plant growing trough; The bottom wall and the side wall are enclosed, and the direction of the groove of the aquatic plant planting groove toward the bottom wall is set as a preset direction; the surrounding piece includes a first surrounding piece and a second surrounding piece; the first surrounding piece One end is connected to the bottom wall, and the other end is connected to the edge of the slot of the aquatic plant planting slot, and one end of the second enclosure piece is connected to the edge of the slot of the aquatic plant planting slot. The end is connected to the side wall; the notch edge, the side wall and the first enclosure sheet constitute a filling gap for placing the first filling module and the second filling module; along the parallel to the preset direction, the second enclosure sheet will fill the gap It is divided into a first housing space for housing the first filling module and a second housing space for housing the second filling module.

Further, in a preferred embodiment of the present invention, it further includes a plurality of terrestrial plant growing kit modules; the terrestrial plant growing kit modules are nested on the edge of the slot in one-to-one correspondence; along the preset direction, terrestrial plant growing The kit module is provided with a second communication hole; the second communication hole communicates with the slot to ensure that the plants in the aquatic plant growing tank can normally grow through the second communication hole.

Further, in a preferred embodiment of the present invention, the terrestrial planting kit module includes a partition, an inner layer plate for forming a side wall of the second communication hole, and an outer layer plate sleeved on the inner layer plate; the inner layer The planting gap is formed between the board and the outer layer board; the partition is provided in the planting gap and is detachably connected with the inner layer and the outer layer board; along the parallel to the preset direction, the partition divides the planting gap into land for planting The planting layer of plants and the sheathing layer for the module of the terrestrial plant planting kit sleeved on the edge of the slot.

Further, in a preferred embodiment of the present invention, along the parallel to the preset direction, the inner layer plate and the outer layer plate are concavely provided with clamping slots, and the opposite ends of the partition plate are convexly provided with convex strips Plug into the card slots one by one.

Further, in a preferred embodiment of the present invention, the floating bed filling module further includes a third filling module for filling in the aquatic plant growing tank.

Further, in a preferred embodiment of the present invention, the density of the filling material used in the floating bed filling module is lower than that of water.

Further, in a preferred embodiment of the present invention, the filling material includes at least one of a matrix and a matrix to which microorganisms are attached; the matrix includes at least one of light ceramsite, volcanic stone, polymer material, and biomass material Species.

Further, in a preferred embodiment of the present invention, the biomass material includes at least one of reed straw, dead branches, and dead leaves.

Further, in a preferred embodiment of the present invention, the floating bed frame module includes a support tube for connecting the monitoring probe and / or the solar panel, the axis of the support tube is parallel to the preset direction; the floating bed kit module is useful for opening The third communication hole through which the support tube passes.

Further, in a preferred embodiment of the present invention, the cross-sectional area of the aquatic plant growing trough gradually decreases perpendicular to the predetermined direction.

The beneficial effects of a mobile in-situ water quality purification landscape device provided by the present invention are:

(1) The invention adopts modular assembly, which is convenient for assembly and transportation.

(2) The present invention adopts a double-layer structure surrounding member to surround the first filling module and the second filling module in the aquatic plant growing tank. Through the structural design of the above enclosure and the improvement in the connection method with the aquatic plant planting tank, it has the following advantages: it can provide buoyancy to the mobile in-situ water purification landscape device while providing vertical to the aquatic plant planting tank Supporting power to increase the load of the aquatic plant growing tank; can make the aquatic plant growing tank more shaped; promote the formation of a planting nest for planting small aquatic plants between the aquatic plant growing tank and the floating bed frame module.

(3) The selection of the floating bed filling module can provide more habitat for the growth of microorganisms, thereby further improving the water purification effect, exerting a long-term water quality guarantee mechanism, and expanding the mobile in-situ water purification landscape device in black and odorous water bodies and certain Some special wastewater applications.

(4) The present invention adopts the terrestrial plant planting kit module to be nested in the aquatic plant planting trough, which can enable the terrestrial plants to surround the aquatic plant growing in the aquatic plant planting trough to grow. , Not only will not take up more space, but also can provide growth space for terrestrial and aquatic plants at the same time, to meet the diversity and comprehensiveness of planting categories, but also to solve the bottleneck of floating beds in winter plants, create a harmony with nature Beautiful landscape.

(5) The present invention can improve the coordination of the floating bed frame and floating bed kit by installing a monitoring probe and / or a solar panel, etc. The solar panel provides collected light energy and converts it into electrical energy to facilitate the use of the monitoring probe to observe the water quality. Save costs; or connect aeration heads and other devices through solar panels to achieve aeration in the water, further improve the dissolved oxygen in the water, and thus improve the self-purification ability.

BRIEF DESCRIPTION

1 is an exploded view of a mobile in-situ water purification landscape device provided by an embodiment of the present invention;

2 is a perspective view of a module of a terrestrial plant growing kit provided by an embodiment of the present invention;

3 is a schematic cross-sectional view of a module of a terrestrial plant growing kit provided by an embodiment of the present invention;

4 is a schematic cross-sectional view of a mobile in-situ water purification landscape device provided by an embodiment of the present invention;

5 is a schematic cross-sectional view of a floating bed matrix floating bed filling module filled with a movable in-situ water purification landscape device provided by an embodiment of the present invention;

6 is a schematic cross-sectional view of a mobile in-situ water purification landscape device provided by an embodiment of the present invention planted with aquatic and terrestrial plants;

7 is a front view of a mobile in-situ water purification landscape device provided by an embodiment of the present invention.

Reference signs: 100-landscape device, 110-floating bed frame module, 120-floating bed kit module, 130-third filling module, 140-first filling module, 150-second filling module, 160-filling gap, 170-land Plant planting kit module, 180-planting nest, 111-main float pipe, 112-small float pipe, 113-support pipe, 114-five pipe, 115-first communication hole, 121-connecting hole, 122-velcro , 123- aquatic plant growing trough, 124- enclosing piece, 125- third communication hole, 1231 bottom wall, 1232 side wall, 1233 notch edge, 1234 notch, 1241 first enclosing piece, 1242-Second enclosure piece, 161-first accommodating space, 162-second accommodating space, 171-second communication hole, 172-divider, 173-inner layer board, 174-outer layer board, 175-planting layer , 176-set layer.

detailed description

To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The present invention will be further described below with reference to FIGS. 1-7:

The invention provides a movable in-situ water purification landscape device 100, including a floating bed frame module 110, a floating bed filling module (not shown in the figure), and a floating bed kit for nesting floating bed frame module 110 and floating bed matrix floating bed filling module Module 120.

Please refer to FIG. 1. It should be noted that, in this embodiment, the floating bed frame module 110 is composed of a main floating pipe 111 and a small floating pipe 112. The main floating pipe 111 constitutes an outer frame, and the shape of the outer frame is not specifically limited, and includes a rectangle, a circle, and the like. A plurality of small floating tubes 112 are provided between the outer frames to divide the floating bed frame module 110 to form a plurality of first communication holes 115, and the axis lines of the plurality of first communication holes 115 are arranged in parallel. In this embodiment, further, the main floating tube 111 is selected as a square frame, the small floating tube 112 is cross-shaped, and the main floating tube 111 is divided to form four first communication holes 115. A buoy is provided in the main buoy. The buoy includes but is not limited to the use of waste plastic bottles. On the one hand, it can be used as waste. On the other hand, during the use of the present invention, even if the outer frame is damaged, because it is equipped with a buoy, it is still not The sinking of the floating bed will occur. Both the main buoy and the small buoy 112 are made of light polymer materials, including but not limited to PVC pipes, and are connected by commonly used connecting elbows. It should be noted that in this embodiment, a support tube 113 for supporting the monitoring probe and / or the solar panel is further provided in the middle of the floating bed frame module 110, and the support tube 113 and the four small floating tubes 112 are five-way tubes 114 Connected.

Please refer to FIG. 1. In this embodiment, the floating bed kit module 120 is made of a fabric formed with fibers having a large specific surface, specifically including but not limited to non-woven fabric. The non-woven fabric can be immersed in water for a long time and has a long service life. After the invention is used for a certain period of time, the root system of the floating bed fabric will interweave with the floating body through the non-woven fabric and the floating bed matrix floating bed filling module pores to form a connecting network, which can not only enhance the floating bed The ability to resist wind and waves, and move the center of gravity downwards, will not fall due to the growth of plants.

In this embodiment, the connection method of the floating bed kit module 120 and the floating bed frame module 110 is not specifically limited. Further, referring to FIG. 1, the four sides of the floating bed kit module 120 are provided with a plurality of connection holes for the rope to pass through 121. Place the floating bed in the floating bed frame module 110, put the floating bed frame module 110 on the floating bed kit module 120, and tighten the connection hole 121 with a rope sleeve. It should be noted that, in this embodiment, a detachable device for adhering the adjacent landscape device 100 is provided around the floating bed kit module 120. The detachable devices include but are not limited to concealed buckles and velcro 122, which can be directly spliced in water to complete the splicing and installation of multiple units of landscape device 100, which is very convenient.

Please refer to FIGS. 4-6. In this embodiment, the floating bed kit module 120 is recessed with a plurality of aquatic plant growing tanks 123 arranged at intervals for planting large aquatic plants. The aquatic plant growing tanks 123 are recessed one by one correspondingly and penetrate through First communication hole 115. The aquatic plant growing trough 123 is formed by enclosing the bottom wall 1231 and the side wall 1232, and the direction of the notch 1234 of the aquatic plant growing trough 123 toward the bottom wall 1231 is set as a preset direction. The shape of the aquatic plant growing trough 123 is not specifically limited, including cylindrical troughs and rectangular troughs, etc. In this embodiment, the aquatic plant growing trough 123 is a trapezoidal trough, specifically perpendicular to the preset direction, aquatic plants The cross-sectional area of the planting groove 123 gradually decreases.

In this embodiment, the floating bed filling module includes a first filling module 140 and a second filling module 150. Please refer to FIGS. 3-5. It should be noted that the floating bed kit module 120 has multiple sets of surrounding components (not shown in the figure). The structure of the surrounding components is not specifically limited, and the surrounding components are provided in the aquatic plant growing tank 123 in a one-to-one correspondence. The enclosure assembly includes at least one enclosure 124. The surrounding member 124 includes a first surrounding sheet 1241 and a second surrounding sheet 1242. One end of the first surrounding sheet 1241 is connected to the bottom wall 1231, and the other end is connected to the notch edge 1233 of the aquatic plant growing trough 123. The second One end of the surrounding piece 1242 is connected to the notch edge 1233 of the aquatic plant growing groove 123, and the other end is connected to the side wall 1232.

The notch edge 1233, the side wall 1232 and the first surrounding sheet 1241 constitute a filling gap 160 for placing the first filling module and the second filling module. Along the parallel to the predetermined direction, the second surrounding piece 1242 divides the filling gap 160 into a first receiving space 161 for receiving the first filling module 140 and a second receiving space 162 for receiving the second filling module 150. The second accommodating space 162 filled with the second filling module 150 can be adjusted in height along with the depth of the aquatic plant growing tank 123.

Through the structural design of the above enclosure and the improvement in the connection method with the aquatic planting tank 123, it has the following advantages: it can provide buoyancy to the mobile in-situ water purification landscape device 100 while providing aquatic plant cultivation The vertical support of the tank 123 improves the load of the aquatic planting tank 123; it can make the aquatic planting tank 123 more shaped; promote the formation of the aquatic planting tank 123 between the slot edge 1233 and the floating bed frame module 110 for planting small aquatic plants The planting nest 180.

Please refer to FIGS. 5 and 6. It should be noted that, in this embodiment, further, the floating bed filling module further includes a third filling module 130 for filling the aquatic plant growing tank 123.

In this embodiment, the density of the filling material used in the floating bed filling module is lower than that of water. It includes at least one of a substrate and a substrate to which microorganisms are attached. In this embodiment, the substrate includes at least one of light ceramsite, volcanic stone, polymer material, and biomass material. Further, the biomass material includes at least one of reed straw, dead branches, and dead leaves. The selection of the matrix material of the floating bed filling module can provide more habitats for the growth of microorganisms, thereby further improving the water purification effect.

2-5, the landscape device 100 further includes a plurality of terrestrial plant growing kit modules 170. Each terrestrial plant growing kit module 70 is sleeved on the slot edge 1233 in a one-to-one correspondence. Along the preset direction, the terrestrial plant growing kit module 170 defines a second communication hole 171. The second communication hole 171 communicates with the notch 1234 to ensure that the plants in the aquatic plant growing groove 123 can normally grow through the second communication hole 171. The terrestrial plant growing kit module 170 can enable the aquatic plants surrounding the terrestrial plants to grow in the aquatic plant growing tank 123. According to the above structural design of the terrestrial plant growing kit module 170, not only does it not take up more space, but also It can provide space for growth of terrestrial and aquatic plants at the same time, meet the diversity and comprehensiveness of planting categories, and can also solve the bottleneck of floating bed winter plants and create a beautiful landscape that blends with nature.

Referring to FIG. 2, the structure of the terrestrial plant growing kit module 170 is not specifically limited. Further, in this embodiment, the terrestrial plant growing kit module 170 includes a partition 172 and a side wall for forming the second communication hole 171 The inner layer plate 173 of 1232 and the outer layer plate 174 sleeved on the inner layer plate 173. A planting gap (not marked in the figure) is formed between the inner layer board 173 and the outer layer board 174, and is detachably connected to the inner layer board 173 and the outer layer board 174. Specifically, referring to FIG. 3, along the parallel to the preset direction, both the inner layer plate 173 and the outer layer plate 174 are concavely provided with card slots (not marked in the figure), and the opposite ends of the partition plate 172 are convexly provided with convex strips At 1721, the protrusions 1721 are inserted into the card slots one-to-one. Along the parallel to the predetermined direction, the partition 172 divides the planting gap into a planting layer 175 for planting terrestrial plants and a set layer 176 for planting the kit for planting terrestrial plants 170 on the slot edge 1233. The terrestrial plant growing kit module 170 is made of lightweight materials. It has the advantages of simple structure, convenient use and space saving.

Please refer to FIG. 1, the axis of the support tube 113 is set parallel to the preset direction. The floating bed kit module 120 is provided with a third communication hole 125, and the end of the support tube 113 away from the floating bed frame module 110 passes through the third communication hole 125 to connect a monitoring probe (not shown) and / or a solar panel (not shown). The solar panel can collect light energy and convert it into electrical energy for monitoring the use of the probe, so as to observe the water quality and save costs. The solar panel can also be connected to aeration heads and other devices to achieve aeration in the water, further improving the dissolved oxygen in the water, thereby enhancing the self-purification ability.

In this embodiment, large-scale aquatic plants include, but are not limited to, green iris, iris, aquatic canna, reed, oleander, etc. Small aquatic plants include, but are not limited to, onion, myriophyllum, trifolium, etc. Terrestrial plants are common medium and small terrestrial plants.

The mobile in-situ water purification landscape device 100 provided in this embodiment is used as follows:

First, the buoy is set in the floating bed frame module 110, and the floating bed frame module 110 is covered with the floating bed kit module 120 filled with the first filling module 140 and the second filling module 150, and the fitting port is tightened. Large-scale aquatic plants are planted in the aquatic plant planting tank 123, the third filling module 130 is placed in the aquatic plant planting tank 123 to fix the large-scale aquatic plants, and then the small-scale aquatic plants are directly inserted into the planting nest 180. Next, the terrestrial plant planting kit module 170 is sleeved on the edge 1233 of the aquatic plant planting tank 123. Place soil and plant terrestrial plants in the planting gap. Then, multiple landscape device 100 units are placed on the water surface and connected by a detachable device to complete installation and planting.

The embodiments described above are a part of the embodiments of the present invention, but not all the embodiments.

The detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Claims (10)

1. A mobile in-situ water purification landscape device is characterized by comprising a floating bed frame module (110), a floating bed filling module, and a floating bed kit module (120) for nesting floating bed frame module (110) and floating bed filling module;

   The floating bed filling module includes a first filling module (140) and a second filling module (150);

   The floating bed frame module (110) has a plurality of first communication holes (115) arranged at intervals, the axis lines of the plurality of first communication holes (115) are arranged in parallel; the floating bed kit module (120) is concavely arranged with a plurality of spaced apart The aquatic plant growing trough (123), which is recessed in one-to-one correspondence and penetrates the first communication hole (115);

   The floating bed kit module (120) has multiple sets of enclosure components, which are provided in the aquatic plant growing troughs (123) in a one-to-one correspondence; the enclosure components include at least one set of enclosures (124); aquatic plant growing troughs (123) It is formed by enclosing the bottom wall (1231) and the side wall (1232), and the direction of the notch (1234) of the aquatic plant growing trough (123) toward the bottom wall (1231) is set as the preset direction; (124) Including the first enclosing piece (1241) and the second enclosing piece (1242); one end of the first enclosing piece (1241) is connected to the bottom wall (1231), and the other end is connected to the aquatic plant growing trough (123) The groove edge (1233) is connected, one end of the second enclosing piece (1242) is connected to the groove edge (1233) of the aquatic plant growing groove (123), and the other end is connected to the side wall (1232); 1233), the side wall (1232) and the first enclosure piece (1241) constitute a filling gap (160) for placing the first and second filling modules; along the parallel to the preset direction, the second enclosure piece ( 1242) The filling gap (160) is divided into a first receiving space (161) for receiving the first filling module (140) and a second receiving space (162) for receiving the second filling module (150).
2. The mobile in-situ water purification landscape device according to claim 1, characterized in that it further comprises a plurality of terrestrial plant growing kit modules (170); the terrestrial plant growing kit modules (170) are nested in one-to-one correspondence At the edge of the slot (1233); along the preset direction, the terrestrial plant growing kit module (170) is provided with a second communication hole (171); the second communication hole (171) communicates with the slot (1234) to ensure aquatic plants The plant in the planting tank (123) can grow normally through the second communication hole (171).
3. The mobile in-situ water purification landscape device according to claim 2, characterized in that the terrestrial plant planting kit module (170) includes a partition (172) and a side wall for forming a second communication hole (171) ( 1232) inner layer plate (173), outer layer plate (174) sleeved on inner layer plate (173); planting gap is formed between inner layer plate (173) and outer layer plate (174); partition plate (172) ) Is installed in the planting gap and is detachably connected with the inner layer plate (173) and the outer layer plate (174); along the parallel to the preset direction, the partition plate (172) divides the planting gap into land for planting The planting layer (175) of the growing plants and the setting layer (176) for the land plant planting kit module (170) sleeved on the edge (1233) of the slot.
4. The movable in-situ water purification landscape device according to claim 3, characterized in that both the inner layer plate (173) and the outer layer plate (174) are concavely provided with clamping slots, and the opposite ends of the partition plate (172) Each convex is provided with a convex strip (1721), and the convex strips (1721) are inserted into the clamping slots in a one-to-one correspondence.
5. The mobile in-situ water purification landscape device according to claim 1, wherein the floating bed filling module further includes a third filling module (130) for filling the aquatic plant growing tank (123).
6. The mobile in-situ water purification landscape device according to claim 5, wherein the density of the filling material used in the floating bed filling module is lower than that of water.
7. The mobile in-situ water purification landscape device according to claim 6, characterized in that: the filling material includes at least one of a substrate and the substrate to which microorganisms are attached; the substrate includes light ceramsite, At least one of volcanic stone, polymer material, and biomass material.
8. The mobile in-situ water purification landscape device according to claim 7, wherein the biomass material includes at least one of reed straw, dead branches, and dead leaves.
9. The mobile in-situ water purification landscape device according to claim 1, characterized in that the floating bed frame module (110) includes a support tube (113) for connecting a monitoring probe and / or a solar panel, the support tube (113) The axis direction of is set parallel to the preset direction; the floating bed kit module (120) is provided with a third communication hole (125) for the support tube to pass through.
10. The mobile in-situ water purification landscape device according to claim 1, wherein the cross-sectional area of the aquatic plant growing trough (123) is gradually reduced along the direction perpendicular to the preset direction.

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