CN221296493U - A modular small wetland for treating road rainwater - Google Patents

Abstract

The utility model provides a modular small wetland for treating road rainwater, comprising a concave prefabricated pool, which is arranged on the side of the road, with a water inlet on one side of the top, and a rainwater buffering and diversion device at the bottom of the water inlet; a purification and filtering layer and a drainage collecting pipe, the drainage collecting pipe is arranged in the pebble drainage layer, and is provided with evenly arranged water inlet holes, one end of which is connected to the rainwater pipe network, and the other end is connected to the overflow pipe through an elbow; the pebble buffer layer is arranged on the top of the plant planting layer and is located at the bottom of the rainwater buffering and diversion device; a lifting floating cover, the bottom of which is slidably connected to the overflow pipe, and water inlet grilles are arranged on four sides, so as to solve the technical problems that no shielding net is provided at the overflow pipe at present, when the rainwater is too heavy, the floating debris entering will cause the overflow pipe to be blocked, and the rainwater directly rushing in will easily form an alluvial puddle at the bottom of the rainwater inlet, so that the rainwater is difficult to be scattered and filtered, and the surface covering layer is damaged to a certain extent.

Description

A modular small wetland for treating road rainwater

Technical Field

The utility model mainly relates to the technical field of rainwater treatment, and in particular to a small wetland for modularly treating road rainwater.

Background technique

In urban development planning, how to collect and discharge rainwater is a common problem. Currently, most rainwater wells are used for discharge and collection. However, since rainwater will carry a large amount of mud or floating objects when passing through the road, the water quality of rainwater is poor. If it is directly sent to the rainwater pipe network and discharged into rivers or groundwater rivers without treatment, it will cause certain damage to the ecology. Therefore, it is necessary to purify it as much as possible during the rainwater discharge process.

For example, patent number CN201310587306.7 discloses a rainwater biological retention and filtration device, which can not only effectively reduce runoff and flood peaks, but also effectively improve the water quality of rainwater runoff.

The inventor discovered the following defects during the operation of the specific embodiment:

When it rains, rainwater will enter the internal covering layer through the rainwater inlet. There is no diversion device at the rainwater inlet. After a certain drop, rainwater is likely to wash away the covering layer. In the case of long-term or heavy rain, alluvial puddles are likely to form at the bottom of the rainwater inlet. In this way, it is difficult for rainwater to be dispersed and filtered, and the surface covering layer is also damaged to a certain extent. If some smaller plants are planted, it is easy to cause it to be washed away. There is no shielding net at the overflow pipe. When the rain is too heavy, some floating debris will enter and cause the overflow pipe to be blocked.

It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art.

Utility Model Content

1. Technical problems to be solved by the utility model

The utility model provides a modular small wetland for treating road rainwater, which is used to solve the technical problems existing in the above-mentioned background technology.

2. Technical solution

To achieve the above purpose, the technical solution provided by the utility model is: a small wetland for modularly treating road rainwater, comprising

A concave prefabricated pool is arranged on the side of the road, with a water inlet opened on one side of the top, and a rainwater buffering and diversion device is arranged at the bottom of the water inlet;

Purification and filtration layers, including the top plant planting layer, the middle sand and gravel filtration layer, and the bottom pebble drainage layer;

A drainage collection pipe, which is arranged in the pebble drainage layer and has evenly arranged water inlet holes, one end of which is connected to the rainwater pipe network and the other end is connected to the overflow pipe through an elbow;

A pebble buffer layer is arranged on the top of the plant planting layer and located at the bottom of the rainwater buffer diversion device;

The lifting floating cover has a bottom that is slidably connected to the overflow pipe and water inlet grilles are arranged on four sides.

The concave prefabricated pool of the device can be directly cast with concrete materials. The pebble buffer layer at the bottom can be replaced with large-grained stones according to the installation site. The plant planting layer on the top can also be paved with soil of different thicknesses and materials according to the planting needs. When paving, a pit of the same size is dug on the side of the curbstone for placement. When it rains, rainwater will fall into the rainwater buffering and diversion device along the water inlet, and enter the pebble buffer layer at the bottom through the rainwater buffering and diversion device, and then flow to the plant planting layer. After purification at the bottom, it is collected by the drainage collection pipe and discharged to the municipal rainwater pipe network. When the rainwater is heavy, in order to prevent the rainwater from being unable to be filtered in time, the excessive rainwater will gradually fill the concave prefabricated pool, lift the lifting floating cover on the top, and then open the water inlet grille to allow water to flow inward.

Furthermore, the plant planting layer adopts one or more of pine needle soil, leaf mold, sandy soil, and homemade nutrient soil.

Furthermore, the rainwater buffering and diversion device includes a concave diversion trough, a plurality of water holes are opened at the bottom of the concave diversion trough, a plurality of clamping blocks are connected to the inner side of the concave diversion trough, and a clamping groove is provided at a corresponding position inside the concave prefabricated pool.

Furthermore, the clamping groove is provided with multiple layers.

Furthermore, semicircular water outlet grooves are evenly arranged on the outer side of the concave diversion groove, and the semicircular water outlet grooves are spaced apart from the water holes.

Furthermore, the lifting floating cover comprises a sliding sleeve, the bottom of the sliding sleeve is slidably connected to the overflow pipe, the sliding sleeve is evenly provided with the water inlet grid, and the top of the water inlet grid is connected to the floating ring.

Furthermore, a water inlet channel is opened at the top of the floating ring, and the water inlet channel is threadedly connected to a sealing cover.

3. Beneficial effects

Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

The utility model has a reasonable design. The rainwater buffering and diversion device is used in conjunction with the pebble buffering layer on the top of the plant planting layer to buffer the incoming rainwater, effectively preventing the rainwater from washing away the soil of the plant planting layer, and improving the purification effect of the rainwater entering.

By setting a lifting floating cover, it can be closed when the rainwater is not full, and automatically float open when the rainwater is full, effectively conveying the overfilled rainwater and preventing the water inlet grille from being blocked by floating objects and causing blockage.

It should be noted that the structures not introduced in the present invention are not related to the design points and improvement directions of the present invention, and are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic cross-sectional view of the structure of the present invention;

FIG2 is a schematic diagram of the three-dimensional structure of the utility model;

FIG3 is a schematic diagram of a rainwater buffering and diversion device of the present invention;

FIG4 is a schematic diagram of the structure of the utility model after installation;

FIG5 is a schematic diagram of the structure of the lifting floating cover of the utility model.

Reference numerals

1. Concave prefabricated pool; 2. Water inlet; 3. Rainwater buffer and diversion device; 31. Concave diversion trough; 32. Water hole; 33. Snap-in block; 34. Snap-in groove; 35. Semicircular water outlet trough; 4. Purification and filtration layer; 41. Plant planting layer; 42. Sand and gravel filtration layer; 43. Pebble drainage layer; 5. Drainage collection pipe; 6. Overflow pipe; 7. Pebble buffer layer; 8. Lifting floating cover; 81. Sliding sleeve; 82. Floating ring; 83. Water inlet channel; 84. Sealing cover; 9. Water inlet grille.

Detailed ways

To facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Example

Referring to Figures 1-5, a modular small wetland for treating road rainwater includes:

A concave prefabricated pool 1 is arranged on the side of the road, with a water inlet 2 opened on one side of the top, and a rainwater buffering and diversion device 3 is arranged at the bottom of the water inlet 2;

The purification and filtering layer 4 includes a plant planting layer 41 at the top, a sand and gravel filtering layer 42 in the middle, and a pebble drainage layer 43 at the bottom;

A drainage collection pipe 5, which is arranged in the pebble drainage layer 43, has evenly arranged water inlet holes, one end of which is connected to the rainwater pipe network, and the other end is connected to the overflow pipe 6 through an elbow;

The pebble buffer layer 7 is arranged on the top of the plant planting layer 41 and located at the bottom of the rainwater buffer diversion device 3;

The floating cover 8 is lifted and lowered, the bottom of which is slidably connected to the overflow pipe 6, and water inlet grilles 9 are arranged on the four sides.

The concave prefabricated pool 1 of the present device can be directly cast with concrete materials, the pebble buffer layer 7 at the bottom can be replaced with large-grained stones according to the installation site, and the plant planting layer 41 at the top can also be paved with soil of different thicknesses and materials according to the planting needs. When paving, a pit of the same size is dug on the side of the curbstone for placement. When it rains, rainwater will fall into the rainwater buffering and diversion device 3 along the water inlet 2, and enter the pebble buffer layer 7 at the bottom through the rainwater buffering and diversion device 3, and then flow to the plant planting layer 41. After purification at the bottom, it is collected by the drainage collection pipe 5 and discharged to the municipal rainwater pipe network. When the rainwater is heavy, in order to prevent the rainwater from being unable to be filtered in time, the excessive rainwater will gradually fill the concave prefabricated pool 1, lift the lifting floating cover 8 on the top, and then open the water inlet grille 9 to allow water to flow inward.

The plant planting layer 41 is made of one or more of pine needle soil, leaf mold, sandy soil, and homemade nutrient soil, and a suitable soil combination can be selected according to the plants to be planted in each region.

The rainwater buffering and diversion device 3 includes a concave diversion groove 31, a plurality of water holes 32 are opened at the bottom of the concave diversion groove 31, a plurality of clamping blocks 33 are connected to the inner side of the concave diversion groove 31, and a clamping groove 34 is provided at the corresponding position inside the concave prefabricated pool 1. When rainwater passes through the water inlet 2, it will enter the concave diversion groove 31 to prevent the water flow from directly impacting the plant planting layer 41 at the bottom. Then the rainwater will flow to the bottom through the water holes 32 at the bottom, and the concave diversion groove 31 can be directly inserted into the clamping groove 34 through the clamping block 33.

The clamping groove 34 is provided with multiple layers, and the concave diverter groove 31 can be rotated to a suitable position according to the height of the bottom plant planting layer 41, so as to reduce the height between the concave diverter groove 31 and the plant planting layer 41 as much as possible to reduce the impact force of the water flow.

Semicircular water outlet grooves 35 are evenly arranged on the outside of the concave diversion groove 31. The semicircular water outlet grooves 35 are spaced apart from the water through holes 32. When the rainwater is too heavy or the water through holes 32 are blocked, the excess rainwater can also be discharged through the semicircular water outlet grooves 35. The two are spaced apart to further reduce the water impact force at each drainage point.

The lifting floating cover 8 includes a sliding sleeve 81, the bottom of the sliding sleeve 81 is slidably connected to the overflow pipe 6, the sliding sleeve 81 is evenly provided with the water inlet grille 9, the top of the water inlet grille 9 is connected to the floating ring 82, and the sliding sleeve 81 is inserted at the bottom of the overflow pipe 6 when the water in the concave prefabricated pool 1 is not full. At this time, the water inlet grille 9 is not connected to the outside world to prevent debris from entering. When the concave prefabricated pool 1 is full of water due to excessive rain, the floating ring 82 floats up and drives the water inlet grille 9 at the bottom to slide out. At this time, excess water will enter the internal overflow pipe 6 through the water inlet grille 9. Since the water inlet grille 9 is inside the water, it is difficult for floating impurities to flow into the overflow pipe 6 through the water inlet grille 9.

The top of the floating ring 82 is provided with a water inlet channel 83, and the water inlet channel 83 is threadedly connected to a sealing cover 84. The sealing cover 84 can be opened and closed manually, and opened during rare heavy rains to increase the amount of rainwater entering.

The above-mentioned embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims (7)

1. The utility model provides a small-size wetland of modularization processing road rainwater which characterized in that: comprising

The concave prefabricated pool (1) is arranged on the side surface of a road, a water inlet (2) is formed in one side of the top of the concave prefabricated pool, and a rainwater buffering and diverting device (3) is arranged at the bottom of the water inlet (2);

A purifying filter layer (4) comprising a top plant planting layer (41), a sand and stone filter layer (42) in the middle and a cobble drainage layer (43) at the bottom;

The drainage collecting pipe (5) is arranged in the cobble drainage layer (43), water inlets which are uniformly arranged are distributed on the drainage collecting pipe (5), one end of the drainage collecting pipe is connected with a rainwater pipe network, and the other end of the drainage collecting pipe is connected with the overflow pipe (6) through an elbow;

The cobble buffer layer (7) is arranged at the top of the plant planting layer (41) and is positioned at the bottom of the rainwater buffering and distributing device (3);

lifting floating cover (8), bottom sliding connection overflow pipe (6), four sides are equipped with water inlet grid (9).

2. A small wetland for modularly treating road rainwater according to claim 1, wherein: the plant planting layer (41) adopts one or more of loose soil, leaf soil, sandy soil and self-made nutrient soil.

3. A small wetland for modularly treating road rainwater according to claim 1, wherein: the rainwater buffering and diverting device (3) comprises a concave diversion groove (31), a plurality of water passing holes (32) are formed in the bottom of the concave diversion groove (31), a plurality of clamping blocks (33) are connected to the inner side of the concave diversion groove (31), and clamping grooves (34) are formed in corresponding positions inside the concave prefabricated pool (1).

4. A small wetland for modularly treating road rainwater according to claim 3, wherein: the clamping groove (34) is provided with a plurality of layers.

5. A small wetland for modularly treating road rainwater according to claim 3, wherein: the outer side of the concave diversion channel (31) is uniformly provided with a semicircular water outlet channel (35), and the semicircular water outlet channel (35) and the water passing holes (32) are arranged at intervals.

6. A small wetland for modularly treating road rainwater according to claim 1, wherein: the lifting floating cover (8) comprises a sliding sleeve (81), the bottom of the sliding sleeve (81) is connected with the overflow pipe (6) in a sliding mode, the sliding sleeve (81) is evenly provided with a water inlet grid (9), and the top of the water inlet grid (9) is connected with a floating ring (82).

7. A small wetland for modularly treating road rainwater according to claim 6, wherein: the top of the floating ring (82) is provided with a water inlet channel (83), and the water inlet channel (83) is in threaded connection with a sealing cover (84).