CN211621506U - Combined ecological drainage channel structure - Google Patents

Abstract

The utility model discloses a combined ecological drainage channel structure, which is used for carrying out preliminary biological purification treatment on waste water in an excavated drainage channel foundation pit and comprises a combined tank body and a plurality of independent biological floating beds arranged in the tank body; the pool bodies are connected end to form a continuous and semi-sealed water channel, and liquid overflowing from an opening above the water channel or two sides and entering the water channel flows to one end of the water channel along with the height difference of the terrain; the biological floating bed is provided with a single or a plurality of aquatic plants for purifying waste water. The utility model discloses a prefabricated cell body structure splices each other and constitutes continuous drainage canal structure, can reduce the scene and build the process to the reduction is built the influence to the environment, replaces the mode of cast in situ through the prefab, reduces waste water and the solid useless emission, reduces the demand to the place, more ecological environmental protection.

Description

Combined ecological drainage channel structure

Technical Field

The utility model belongs to the technical field of the environmental protection equipment, concretely relates to modular ecological drainage canal structure.

Background

The irrigation and drainage channel is designed by modifying or newly building original soil channels in the field into masonry, masonry brick and concrete, in order to ensure water use in the field and reduce leakage, the channel has straight trend and low curvature, the surface of the channel is smoothly coated with 2-3cm of concrete, the channel is deep and vertical, water flow is rapid, permeability is weak, irrigation rate is high, but field organisms are difficult to pass through the channel and escape after entering the channel, and fishes are difficult to inhabit and breed in the channel. Meanwhile, the soil conservation water source, drought and waterlogging resistance are greatly reduced, and the drainage of field flood and the flood control pressure of downstream river reach are indirectly increased. At present, irrigation and drainage canal system engineering mainly requires water delivery benefit, safe structure, engineering cost saving and management convenience, lacks of consideration on ecological service functions, and brings strong interference to living and system health of organisms. Such as: the planning layout is unreasonable, the breast board of the farmland plot is cut off, and the fine crushing of the farmland is aggravated; the design form is unreasonable, the specification is too big, takes up an area of too much, and the material is excessive sclerosis, and the revetment is mostly vertical design, and the irrigation canals and ditches afforestation hidden degree is not high. The unreasonable engineering planning design causes the landscape to be broken and aggravated, the communication between the substances and the energy in the ecological system is blocked, the environment where the organisms normally inhabit and multiply is damaged, the polluted water quality is difficult to self-purify, the landscape impression is influenced, and other ecological problems.

In the existing ecological restoration engineering, the problem that the original fixed ditch has certain influence on the ecological environment in the area is considered, the new ecological ditch technology is adopted for design and construction, the cutting of the occupied cultivated land and the cultivated land can be reduced, the deep digging, high filling and crossing of an ecological sensitive area are avoided, and the interference to the environment is reduced. However, the existing ecological drainage ditch technology is optimized in the existing civil engineering mode, and an effective ecological drainage ditch cannot be built quickly aiming at projects which are not suitable for being built on site, particularly under the condition that some ecological protection areas cannot provide construction sites.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a modular ecological drainage canal structure.

The utility model discloses the technical scheme who adopts does:

a combined ecological drainage channel structure is used for being arranged in a dug drainage channel foundation pit to carry out preliminary biological purification treatment on waste water and comprises a combined tank body and a plurality of independent biological floating beds arranged in the tank body;

the pool bodies are connected end to form a continuous and semi-sealed water channel, and liquid overflowing from an opening above the water channel or two sides and entering the water channel flows to one end of the water channel along with the height difference of the terrain;

the biological floating bed is provided with a single or a plurality of aquatic plants for purifying waste water.

The drainage channel is used for guiding water collected in a side ditch, a catch basin and a low-lying part near a roadbed, a crop field and a house to the roadbed, the crop field and the house field. The design of the drainage channel determines the depth and the distance of the field drainage channels according to the engineering layout and the engineering standard of a drainage system, and analyzes and calculates the flow, the water level, the section size and the engineering quantity of drainage channels and buildings at all levels.

The existing drainage channels are generally arranged at two ends or lower ends of a slope intercepting ditch to drain surface runoff which cannot be accommodated by the intercepting ditch. The terminal of the drainage channel is connected with a reservoir or a natural drainage channel. The slope of the drainage channel on the slope surface is determined according to the position of a drainage place (a reservoir or a natural drainage channel), and when the position of a drainage outlet is at the toe of the slope, the drainage channel is approximately orthogonally arranged with the contour line of the slope surface; when the position of the drainage place is on the slope, the drainage channel can be basically arranged along the contour line or obliquely crossed with the contour line, and various arrangements need to be provided with anti-impact measures.

The existing drainage channel structure is mostly formed by pouring concrete in a foundation pit and is only used for slowly discharging rainwater and other drainage water in a corresponding area. However, because the drainage channel is open and the water flow speed is slow, the water level in the drainage channel is stabilized within a certain range throughout the year, and the sewage with a certain water level is kept to be reserved in the drainage channel. And the length of general drainage canal is longer, and long-time detention can form solitary water in drainage canal sewage, if the aquatic contains a large amount of organic matters, then breed the plant diseases and insect pests easily, and can't directly discharge to natural water.

Therefore, an ecological drainage channel structure is provided for a plurality of areas needing to establish drainage channels, and is different from the traditional drainage channel in that a ground drainage channel is protected by adopting plant measures or combining the plant measures with engineering measures at the bottom and the wall of the drainage channel. Compared with the traditional masonry drainage, the ecological drainage ditch has low cost, good landscape effect and high ecological benefit. However, the existing ecological drainage channel technology is only optimized on the existing fixed drainage channel structure, and the traditional construction mode cannot meet the requirements of some projects needing temporary construction or having short construction time requirements.

The utility model provides a modular drainage canal structure, thereby it forms a continuous water course through multistage cell body structure interconnect to be equipped with a plurality of biology in every cell body and float a bed structure, compare in at present directly planting aquatic plant at the surface of water or bottom, through biology float a bed structure and can fix every trunk aquatic plant, and can avoid its excessive reproduction, thereby reach the controllable effect of scale. Because the waste water in the drainage channel is continuously and slowly discharged, and the length of the whole water channel is long, the water level of the waste water in the drainage channel is continuously maintained within a certain range, so that the biological floating bed arranged on the water surface can be maintained at a certain height.

The utility model provides a cell body structure is for constituting one of them module of whole drainage canal, when building drainage canal, can dig earlier according to the topography and establish the foundation ditch, then prefabricate required cell body structure according to the extending direction and the shape of foundation ditch. And all the pond bodies are transported to an installation site to be directly assembled, so that the installation efficiency is improved, meanwhile, the biological floating bed is prefabricated according to the structure and the size of the pond bodies, the biological floating bed is placed into the pond bodies after water is filled into the drainage channel to reach a certain water level, and then aquatic purification plants of corresponding varieties are selected according to actual requirements.

Furthermore, the side of the tank body is of a V-shaped structure, and two side edges of the upper opening extend outwards to form a transition section.

Through setting to V font structure, can provide certain escape passage for the biology, some upwards climb escape water drainage along with the inner wall that rivers got into the biological accessible both sides slope setting in the drainage canal along with. And the transition sections arranged on the two sides can not only increase the structural stability, but also provide certain buffering when being used in ploughing.

Furthermore, the tank body is a cement prefabricated plate structure which is formed by casting and has the same thickness.

Further, the tank body is of an injection molding plate structure, and a plurality of holes are formed in the inner side wall of the tank body; when the pool body is arranged in a foundation pit, soil on the inner wall of the foundation pit is filled into the hole and occupies less than 50% of the space of the hole.

Further, the pool body comprises a V-shaped frame arranged in the foundation pit and a geotextile layer paved on the inner surface of the V-shaped frame and used for isolating partial solids.

Geotextile is a permeability geosynthetic material who is woven by synthetic fiber and forms, and the geotextile surface coating commonly used has a waterproof glue film, can reach certain water-proof effects, but this scheme is the drainage canal structure to setting up between some ecological land used or arable land, and it has certain retaining effect, can regard as backward flow irrigation to use simultaneously, then needs remain better water permeability.

The V-shaped frame made of the plastic material with good weather resistance is adopted for construction, so that the cost is low, the V-shaped frame is easy to construct and maintain, compared with the existing hard drainage channel structure, the V-shaped frame is more ecological and environment-friendly, the disturbance of engineering to a natural ecological system is reduced as much as possible, the biodiversity is protected, and the space for inhabiting, breeding, ingesting and refuge of field organisms is provided to maintain the normal activities of the organisms. Ecological materials are used as much as possible, projects which are coordinated with the original natural environment are built, the ecological performance of the projects is enhanced, the buffer transition effect between the projects and the field space vegetation is increased, and the functionality of the field ecological system is enhanced.

Furthermore, the pool body comprises a V-shaped frame arranged in the foundation pit and a PVC waterproof cloth layer which is paved on the inner surface of the V-shaped frame and used for seepage prevention.

Furthermore, a plurality of fixing bolts are uniformly arranged on the same side face of the PVC waterproof cloth layer, a plurality of corresponding jacks are arranged on the V-shaped frame, and the PVC waterproof cloth layer is fixed on the inner surface of the V-shaped frame in the jacks through the fixing bolts.

Furthermore, the biological floating bed comprises annular hollow pipes for providing main buoyancy, a floating plate is erected between the annular hollow pipes, and a plurality of planting holes for fixing aquatic plants are formed in the floating plate.

Furthermore, the floating plate is lapped on the annular hollow pipe through a plurality of hooks arranged on two sides, and each hook comprises an arc end connected with the annular hollow pipe and a straight end used for connecting the floating plate; the side wall of the floating plate is provided with a fixing groove for accommodating the straight line end of the hook, the inner side surface of the fixing groove is provided with a door-shaped buckle capable of being opened and closed in a rotating mode, and when the hook is placed in the fixing groove, the hook is upwards rotated through rotating the door-shaped buckle to be buckled for limiting and fixing.

Furthermore, a conical limiting ring for fixing the roots and stems of the aquatic plants is arranged on the planting hole; and a plurality of strip-shaped bulges which protrude downwards are arranged on the lower side surface of the floating plate when the floating plate floats on the water surface, the inner side surfaces of the strip-shaped bulges are downwards-sunken strip-shaped through grooves, and sealing plates for sealing and forming strip-shaped cavities are covered on the opening surfaces of the strip-shaped through grooves.

The utility model has the advantages that:

(1) the utility model discloses a prefabricated cell body structure splices each other and constitutes continuous drainage canal structure, can reduce the scene and build the process to reduce and build the influence to the environment, replace the mode of cast in situ through the prefab, reduce the emission of waste water and solid useless, reduce the demand to the place, more ecological environmental protection;

(2) the utility model discloses a biological floating bed structure that is equipped with can provide better water purifying effect, and through the detachable subassembly that is equipped with, can be convenient for maintain and change simultaneously, the rhizome of fixed aquatic plant that can be better through the toper spacing ring structure that is equipped with.

Drawings

FIG. 1 is a schematic side view of the whole shaft of the cement prefabricated structure of the present invention;

FIG. 2 is a schematic axial view of the whole tank body structure with holes;

FIG. 3 is a side view of the whole pool body and the biological floating island of the present invention;

figure 4 is a top view of the structure of figure 2 in accordance with the present invention;

FIG. 5 is a top view of the tank body with V-shaped frame structure;

FIG. 6 is a schematic axial view A of a tank body with a V-shaped frame structure according to the present invention;

fig. 7 is an enlarged partial schematic view of a in fig. 6 according to the present invention;

fig. 8 is an enlarged partial view of B in fig. 6 according to the present invention;

fig. 9 is a schematic enlarged view of part C of fig. 6 according to the present invention;

FIG. 10 is a schematic axial view B of a tank body with a V-shaped frame structure according to the present invention;

fig. 11 is a schematic enlarged view of a portion D of fig. 10 according to the present invention.

In the figure: 1-pool body, 11-, V-shaped frame, 2-biological floating bed, 21-annular hollow pipe, 22-floating plate, 22.1-planting hole, 22.2-strip through groove, 22.3-strip bulge, 22.4-conical limiting ring, 22.5-sealing plate, 3-fixing bolt, 4-jack, 5-door type buckle and 6-hook.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

the drainage channel is used for guiding water collected in a side ditch, a catch basin and a low-lying part near a roadbed, a crop field and a house to the roadbed, the crop field and the house field. The design of the drainage channel determines the depth and the distance of the field drainage channels according to the engineering layout and the engineering standard of a drainage system, and analyzes and calculates the flow, the water level, the section size and the engineering quantity of drainage channels and buildings at all levels. The existing drainage channel structure is mostly formed by pouring concrete in a foundation pit and is only used for slowly discharging rainwater and other drainage water in a corresponding area.

However, because the drainage channel is open and the water flow speed is slow, the water level in the drainage channel is stabilized within a certain range throughout the year, and the sewage with a certain water level is kept to be reserved in the drainage channel. And the length of general drainage canal is longer, and long-time detention can form solitary water in drainage canal sewage, if the aquatic contains a large amount of organic matters, then breed the plant diseases and insect pests easily, and can't directly discharge to natural water. Therefore, an ecological drainage channel structure is provided for a plurality of areas needing to establish drainage channels, and is different from the traditional drainage channel in that a ground drainage channel is protected by adopting plant measures or combining the plant measures with engineering measures at the bottom and the wall of the drainage channel.

Compared with the traditional masonry drainage, the ecological drainage ditch has low cost, good landscape effect and high ecological benefit. However, the existing ecological drainage channel technology is only optimized on the existing fixed drainage channel structure, and the traditional construction mode cannot meet the requirements of some projects needing temporary construction or having short construction time requirements.

Aiming at the problems in the prior art, the embodiment provides a combined ecological drainage channel structure, which is used for performing preliminary biological purification treatment on wastewater in a dug drainage channel foundation pit and comprises a combined tank body 1 and a plurality of independent biological floating beds 2 arranged in the tank body 1; the pool body 1 is connected end to form a continuous and semi-sealed water channel, and liquid overflowing from an opening above the water channel or two sides and entering the water channel flows to one end of the water channel along with the height difference of the terrain; the biological floating bed 2 is provided with a single or a plurality of aquatic plants for purifying waste water.

This embodiment compares and directly plants aquatic plant at the surface of water or bottom now, through 2 structures of biological floating bed can fix every aquatic plant, and can avoid it to excessively breed to reach the controllable effect of scale. Because the wastewater in the drainage channel is continuously and slowly discharged and the whole water channel is long in length, the wastewater level in the drainage channel is continuously maintained within a certain range, so that the biological floating bed 2 arranged on the water surface can be maintained at a certain height. The structure of the tank body 1 in this embodiment is one of the modules constituting the whole drainage channel, and when the drainage channel is constructed, a foundation pit is dug according to the terrain, and then the required structure of the tank body 1 is prefabricated according to the extending direction and the shape of the foundation pit. All the tank bodies 1 are transported to an installation site to be directly assembled, so that the installation efficiency is improved, meanwhile, the biological floating bed 2 is prefabricated according to the structure and the size of the tank bodies 1, the biological floating bed 2 is placed into the tank bodies 1 after water is poured into the drainage channel to reach a certain water level, and then aquatic purification plants of corresponding varieties are selected according to actual requirements.

Wherein, the side of cell body 1 is V font structure to at the outside transition section that forms that extends of upper portion opening both sides border. Through setting to V font structure, can provide certain escape passage for the biology, some upwards climb escape water drainage along with the inner wall that rivers got into the biological accessible both sides slope setting in the drainage canal along with. And the transition sections arranged on the two sides can not only increase the structural stability, but also provide certain buffering when being used in ploughing.

Example 2:

the embodiment discloses a combined ecological drainage channel structure, as shown in fig. 1 and 3, which is used for performing preliminary biological purification treatment on wastewater in a dug drainage channel foundation pit and comprises a combined tank body 1 and a plurality of independent biological floating beds 2 arranged in the tank body 1; the pool body 1 is connected end to form a continuous and semi-sealed water channel, and liquid overflowing from an opening above the water channel or two sides and entering the water channel flows to one end of the water channel along with the height difference of the terrain; the biological floating bed 2 is provided with a single or a plurality of aquatic plants for purifying waste water. The tank body 1 is a cement prefabricated plate structure which is formed by casting and has the same thickness.

As shown in figure 2, the whole pool body 1 is of a complete plate structure without holes, the thickness of the whole pool body is uniform, the whole pool body is integrally formed by pouring, the V-shaped structure is convenient to transport, the whole pool body can be stacked up and down and transported in a warehouse in the same space, and the loading capacity of single transportation is improved. And adopt the prefabricated plate structure of no space cement, be applicable to the drainage canal structure of some cities and towns or residential areas, build through better anti-seepage structure, carry out the water purification through a plurality of biological floating beds 2 that are equipped with simultaneously to be convenient for contain a certain amount of waste water of organic matter and discharge.

Example 3:

the embodiment discloses a combined ecological drainage channel structure, as shown in fig. 2, which is used for performing preliminary biological purification treatment on wastewater in a dug drainage channel foundation pit, and comprises a combined tank body 1 and a plurality of independent biological floating beds 2 arranged in the tank body 1; the pool body 1 is connected end to form a continuous and semi-sealed water channel, and liquid overflowing from an opening above the water channel or two sides and entering the water channel flows to one end of the water channel along with the height difference of the terrain; the biological floating bed 2 is provided with a single or a plurality of aquatic plants for purifying waste water. The tank body 1 is of an injection molding plate structure, and a plurality of holes are formed in the inner side wall of the tank body 1; when the pool body 1 is arranged in a foundation pit, soil on the inner wall of the foundation pit is filled into the hole and occupies less than 50% of the space of the hole.

Compared with a cement prefabricated plate structure, the injection molding plate structure with the side walls provided with the holes can provide living places for aquatic organisms, and the holes are formed to facilitate the seepage of waste water into soil, so that the structure is suitable for ecological environments of greenbelts or parks and the like, as shown in fig. 2. Most of the drained water in the environment is rainwater, so that organic matters and other indexes are low, and the rainwater can be directly infiltrated into soil after being properly purified.

Example 4:

the embodiment discloses a combined ecological drainage channel structure, which is used for performing primary biological purification treatment on waste water in a dug drainage channel foundation pit and comprises a combined tank body 1 and a plurality of independent biological floating beds 2 arranged in the tank body 1; the pool body 1 is connected end to form a continuous and semi-sealed water channel, and liquid overflowing from an opening above the water channel or two sides and entering the water channel flows to one end of the water channel along with the height difference of the terrain; the biological floating bed 2 is provided with a single or a plurality of aquatic plants for purifying waste water. The tank body 1 comprises a V-shaped frame 11 arranged in a foundation pit and a geotextile layer paved on the inner surface of the V-shaped frame 11 and used for isolating partial solids.

As shown in fig. 4 and 5, the entire V-frame 11 structure shown in fig. 5 includes three parallel main beams of equal length, wherein the width of the bottom main beam is the largest, and the main beams at the two ends of the upper portion are symmetrically arranged about the vertical plane of the center line of the main beams. And a plurality of arc-shaped connecting beams are arranged among the three main beams, and a single V-shaped frame 11 structure shown in figure 5 comprises five arc-shaped connecting beams which are arranged in a V shape.

When the foundation pit is built, the foundation pit is dug, then the V-shaped frame 11 is fixed in the foundation pit and embedded into the soil to achieve a good fixing effect. When the V-shaped frame 11 is fixed, the embedding depth is over 50 percent, namely 50 percent of soil is filled in the blank space. And then, the V-shaped frame 11 is covered with geotextile, and the geotextile is fixed on the V-shaped frame 11 through rivets or steel strands to play a certain isolation effect. The V-shaped frame 11 made of the plastic material with good weather resistance is adopted for construction, so that the cost is low, the construction and the maintenance are easy, compared with the existing hard drainage channel structure, the ecological drainage channel structure is more ecological and environment-friendly, the disturbance of engineering to a natural ecological system is reduced as much as possible, the biodiversity is protected, and the spaces for inhabiting, breeding, ingesting and refuge of field organisms are provided to maintain the normal activities of the organisms. Ecological materials are used as much as possible, projects which are coordinated with the original natural environment are built, the ecological performance of the projects is enhanced, the buffer transition effect between the projects and the field space vegetation is increased, and the functionality of the field ecological system is enhanced.

Example 5:

a tank body 1 of this embodiment is a combined ecological drainage channel structure, as shown in fig. 5 to 11, configured to be disposed in a dug drainage channel foundation pit for performing preliminary biological purification treatment on wastewater, and includes a combined tank body 1 and a plurality of independent biological floating beds 2 disposed in the tank body 1; the pool body 1 is connected end to form a continuous and semi-sealed water channel, and liquid overflowing from an opening above the water channel or two sides and entering the water channel flows to one end of the water channel along with the height difference of the terrain; the biological floating bed 2 is provided with a single or a plurality of aquatic plants for purifying waste water.

The tank body 1 comprises a V-shaped frame 11 arranged in a foundation pit and a PVC waterproof cloth layer which is paved on the inner surface of the V-shaped frame 11 and used for seepage prevention.

PVC waterproof cloth layer has evenly arranged a plurality of fixing pin 3 on the same side to be equipped with a plurality of jacks 4 that correspond on the V type frame 11, fix PVC waterproof cloth layer at the V type frame 11 internal surface in jack 4 through fixing pin 3.

The biological floating bed 2 comprises annular hollow pipes 21 for providing main buoyancy, a floating plate 22 is erected between the annular hollow pipes 21, and a plurality of planting holes 22.1 for fixing aquatic plants are formed in the floating plate 22. The floating plate 22 is lapped on the annular hollow pipe 21 through a plurality of hooks 6 arranged on two sides, and each hook 6 comprises an arc end connected with the annular hollow pipe 21 and a straight end used for connecting the floating plate 22; the side wall of the floating plate 22 is provided with a fixing groove for accommodating the linear end of the hook 6, the inner side surface of the fixing groove is provided with a door-shaped buckle 5 capable of being opened and closed in a rotating mode, and when the hook 6 is placed in the fixing groove, the hook 6 is upwards rotated and buckled for limiting and fixing through rotating the door-shaped buckle 5.

As shown in fig. 8, in which the door catch 5 is in the locked state, and fig. 9 is in the open state. Because the floating plate 22 and the annular hollow pipe are both in contact with the water surface and both provide buoyancy by the water body when the whole biological floating bed 2 floats on the water surface, but because the floating plate 22 is mainly used for placing aquatic plants, the buoyancy borne by the floating plate is smaller than that of the annular hollow pipe, and the floating plate is hung on the annular hollow pipe through the hook 6.

A conical limiting ring 22.4 for fixing the roots and stems of the aquatic plants is arranged on the planting hole 22.1; and a plurality of strip-shaped bulges 22.3 which protrude downwards are arranged on the lower side surface of the floating plate 22 when floating on the water surface, the inner side surfaces of the strip-shaped bulges 22.3 are strip-shaped through grooves 22.2 which are sunken downwards, and sealing plates 22.5 which are used for sealing and forming strip-shaped cavities are covered on the opening surfaces of the strip-shaped through grooves 22.2.

The present invention is not limited to the above-mentioned alternative embodiments, and various other products can be obtained by anyone under the teaching of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the following claims, and which can be used to interpret the claims.

Claims (10)

1. The utility model provides a modular ecological drainage canal structure for the setting carries out the preliminary biological purification of waste water and handles in the drainage canal foundation ditch dug, its characterized in that: comprises a combined tank body (1) and a plurality of independent biological floating beds (2) arranged in the tank body (1);

the pool body (1) is connected end to form a continuous and semi-sealed water channel, and liquid overflowing from an opening above the water channel or two sides and entering the water channel flows to one end of the water channel along with the height difference of the terrain;

the biological floating bed (2) is provided with a single or a plurality of aquatic plants for purifying waste water.

2. The combined ecological drainage canal structure of claim 1, wherein: the side face of the tank body (1) is of a V-shaped structure, and two side edges of the upper opening extend outwards to form a transition section.

3. The combined ecological drainage canal structure according to claim 1 or 2, wherein: the pool body (1) is a cement prefabricated plate structure which is formed by casting and has the same thickness.

4. The combined ecological drainage canal structure according to claim 1 or 2, wherein: the tank body (1) is of an injection molding plate structure, and a plurality of holes are formed in the inner side wall of the tank body (1); when the pool body (1) is arranged in a foundation pit, soil on the inner wall of the foundation pit is filled into the hole and occupies less than 50% of the space of the hole.

5. The combined ecological drainage canal structure according to claim 1 or 2, wherein: the pool body (1) comprises a V-shaped frame (11) arranged in a foundation pit and a geotextile layer which is paved on the inner surface of the V-shaped frame (11) and used for isolating partial solids.

6. The combined ecological drainage canal structure according to claim 1 or 2, wherein: the pool body (1) comprises a V-shaped frame (11) arranged in a foundation pit and a PVC waterproof cloth layer which is paved on the inner surface of the V-shaped frame (11) and used for seepage prevention.

7. The combined ecological drainage canal structure of claim 6, wherein: PVC waterproof cloth layer has evenly arranged a plurality of fixing pin (3) on the same side to be equipped with a plurality of jacks (4) that correspond on V type frame (11), fix PVC waterproof cloth layer in V type frame (11) internal surface in jack (4) through fixing pin (3).

8. The combined ecological drainage canal structure according to claim 1 or 2, wherein: the biological floating bed (2) comprises annular hollow pipes (21) used for providing main buoyancy, floating plates (22) are erected between the annular hollow pipes (21), and a plurality of planting holes (22.1) used for fixing aquatic plants are formed in the floating plates (22).

9. The combined ecological drainage canal structure of claim 8, wherein: the floating plate (22) is lapped on the annular hollow pipe (21) through a plurality of hooks (6) arranged on two sides, and each hook (6) comprises an arc end connected with the annular hollow pipe (21) and a straight end used for connecting the floating plate (22); the side wall of the floating plate (22) is provided with a fixing groove for accommodating the straight line end of the hook (6), the inner side surface of the fixing groove is provided with a door-shaped buckle (5) capable of being opened and closed in a rotating mode, and when the hook (6) is placed in the fixing groove, the hook (6) is upwards rotated and buckled through the rotating door-shaped buckle (5) to be limited and fixed.

10. The combined ecological drainage canal structure of claim 9, wherein: a conical limiting ring (22.4) for fixing the roots and stems of the aquatic plants is arranged on the planting hole (22.1); and a plurality of strip-shaped bulges (22.3) which protrude downwards are arranged on the lower side surface of the floating plate (22) when floating on the water surface, the inner side surfaces of the strip-shaped bulges (22.3) are strip-shaped through grooves (22.2) which are sunken downwards, and sealing plates (22.5) used for sealing and forming strip-shaped cavities are covered on the opening surfaces of the strip-shaped through grooves (22.2).

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