Road assembled anti-clogging biological retention device
By combining structural and device design, the problem of excessively rapid drainage in bioretention facilities during short-term or light rainfall was solved, achieving effective rainwater storage and infiltration, avoiding facility blockage, and improving rainwater utilization efficiency.
Patent Information
- Application Number
- CN202310117025.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-02-15
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2043-02-15
Smart Images
Figure CN116335247B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of rainwater bioretention facilities, in particular to a road assembled anti-clogging bioretention device. BACKGROUND
[0002] Bioretention facilities refer to facilities that store and infiltrate runoff rainwater through plant, soil and microbial systems in low-lying areas. Bioretention facilities are divided into simple bioretention facilities and complex bioretention facilities, and are also called rainwater gardens, bioretention belts, high flowerpots, ecological tree pools, etc. according to different application locations.
[0003] Bioretention facilities are one of the most widely used facilities in sponge city construction, and are divided into simple and complex types. The structure of complex bioretention facilities can prevent the surrounding original soil from invading, and when it is applied on the road, it can protect the surrounding roadbed of the sunken green from being damaged and improve the service life of the road and the bioretention facility. The usual structure of complex bioretention facilities is livestock water layer-covering layer-planting soil layer-pervious layer and drainage layer, which utilizes the natural environment to achieve the reduction of rainwater runoff and the purification of rainwater quality.
[0004] Due to the change of weather, the rainfall and rainfall time are also quite different each time. When the rainfall is large and the time is short, if the drainage system is good, the water storage device is not full of rainwater, the rainwater has been discharged to rivers, lakes and seas, and the plants need to be watered again in the later growth stage. At the same time, when the rainwater is small, drainage and seepage water storage will still occur at the same time, and the seepage amount is far less than the drainage amount, which will still have a certain influence on water storage.
[0005] Therefore, it is necessary to invent a road assembled anti-clogging bioretention device to solve the above problems. SUMMARY
[0006] The purpose of the present application is to provide a road assembled anti-clogging bioretention device to solve the problems raised in the background.
[0007] To achieve the above purpose, the present application provides the following technical scheme: a road assembled anti-clogging bioretention device, comprising a planting soil layer, a bark covering layer, a gauze layer, a permeable geotextile, a gravel layer, a quartz sand water storage layer, a quantitative drainage device, a water guide device and a permeable filter assembly.
[0008] The bark covering layer is laid on the upper surface of the planting soil layer, the gauze layer is laid on the upper surface of the bark covering layer, the quartz sand water storage layer is laid below the planting soil layer and is divided by the permeable geotextile, and the gravel layer is laid below the quartz sand water storage layer.
[0009] The planting soil layer and the bark cover layer are provided with a plurality of storage recesses, the quantitative drainage device and the water-permeable filter assembly are arranged in the storage recesses, and the water-permeable filter assembly is arranged below the quantitative drainage device and connected with the quartz sand water storage layer.
[0010] The quartz sand water storage layer is internally provided with a water guide canvas, the water guide canvas extends upward to the upper portion of the quartz sand water storage layer, the planting soil layer is planted with green plants, and the planting soil layer is provided with baffle plates on both sides.
[0011] Optionally, the quantitative drainage device comprises four side baffles, a circular table type rainwater grate, a filter device, a water guide pipeline, a floating device and a drainage adjusting device; the four side baffles are respectively tightly arranged on the inner walls of the four sides of the storage recess, the circular table type rainwater grate is arranged at the opening of the storage recess and limits the floating device, the filter device is arranged in the four side baffles and is inserted into the water-permeable filter assembly, a water-permeable space is formed between the filter device and the water-permeable filter assembly, the floating device is inserted into the filter device through the circular table type rainwater grate and slides up and down under the action of water buoyancy and gravity, the water guide pipeline is fixed in the filter device and communicates with the water guide device, a siphon space is formed between the water guide pipeline and the filter device, the lower portion of the water guide pipeline is provided with a sliding space, and the drainage adjusting device is fixed on the floating device and extends downward to the sliding space and slides up and down in the sliding space under the driving of the floating device.
[0012] Optionally, the filter device comprises a filter frame, a clamping part and a filter part; the clamping part is vertically arranged and clamps the filter device, the filter part is fixed at the bottom of the clamping part and is inserted into the water-permeable filter assembly, the filter part is provided in a circular table shape and is inwardly inclined to clamp the water guide pipeline, and the filter frame is fixed outside the clamping part and contacts the side baffles.
[0013] Optionally, the floating device comprises a sleeve, a counterweight plate and a floating plate; the floating plate is slidably arranged in the circular table type rainwater grate, the sleeve is inserted into the floating plate and forms a siphon space with the water guide pipeline after descending, and the counterweight plate is fixed at the top of the sleeve and drives the sleeve to descend when the water level descends.
[0014] Optionally, the drainage adjusting device comprises a lifting inner cylinder, a force bearing assembly and a water blocking device; the lifting inner cylinder is arranged in the sliding space in a lifting manner, the lower portion of the water guide pipeline is provided with a sliding through hole which communicates with the sliding space, the force bearing assembly is fixed outside the lifting inner cylinder and extends into the quartz sand water storage layer through the sliding through hole.
[0015] Optionally, the force bearing assembly comprises a plurality of extension plates, a force bearing disc, and water-absorbing expansion material, the plurality of extension plates are fixed outside the lifting inner cylinder and pass through the sliding through hole and are fixedly connected with the force bearing disc, and the water-absorbing expansion material is bonded below the extension plates, so that the quartz sand water storage layer is provided with the structure capable of opening the water-absorbing expansion when the water storage capacity reaches a certain degree, driving the lifting inner cylinder to rise, and the water in the water-absorbing expansion material is discharged after the water in the quartz sand water storage layer disappears, and the lifting inner cylinder is lowered under the action of the weight.
[0016] Optionally, the water blocking device comprises a boom, a deformation spiral plate and a center plate, the deformation spiral plate is fixed inside the lifting inner cylinder, the center plate is fixed at the center of the deformation spiral plate, and the two ends of the boom are fixedly connected with the center plate and the counterweight plate, so that the structure capable of driving the deformation spiral plate to deform and protrude downward when the lifting inner cylinder rises, and driving the deformation spiral plate to deform and protrude upward when the counterweight plate rises, and increasing the drainage is formed.
[0017] Optionally, a guide space is formed in the upper part of the quartz sand water storage layer, a support plate is arranged in the guide space, the support plate is fixed outside the water guide pipeline and supports the water permeable filter assembly, the guide space is communicated with the water guide pipeline through a water guide channel, and the water guide channel is formed in the water guide pipeline and the lifting inner cylinder, so that the structure capable of making the water guide channel communicate and drain water after the lifting inner cylinder rises, and stopping the water guide channel from draining water after the lifting inner cylinder descends is formed.
[0018] Optionally, the water permeable filter assembly comprises a biochar filter layer and a pebble layer, the pebble layer is laid above the quartz sand water storage layer, and the biochar filter layer is laid above the pebble layer and is in contact with the bottom of the side baffle.
[0019] Optionally, the water guide device comprises a drainage pipeline, the drainage pipeline is arranged in the gravel layer and is communicated with the water guide pipeline, and the drainage end of the drainage pipeline is communicated with the water collecting pool outside, so that the rainwater is transported into the water collecting pool.
[0020] The technical effects and advantages of the present application are as follows:
[0021] 1. In the present application, the top opening of the water guide pipeline is higher than the horizontal surface of the water permeable space, so that the rainwater can be blocked when the rainwater time is short or small, enough time is provided for water storage, and the water flow is prevented from being discharged too fast to affect the water storage capacity; and when the water volume increases, the water can be drained through the siphon effect, the drainage depth is increased, more water can be discharged, the residual part of the water is collected through penetration, and the residual depth is lower than the opening of the water guide pipeline, so that the water can be quickly penetrated and stored, and the water can be quickly penetrated and discharged after the water storage is completed.
[0022] 2、The application adjusts the state of the water guide channel by the lifting and sliding of the lifting inner cylinder, after the water storage layer of quartz sand is full of water, the water-absorbing expansion material will absorb water and expand, due to the extrusion of the surrounding, the water-absorbing expansion material can only expand upwards, the lifting inner cylinder is driven to rise by the force-bearing circular plate to open the water guide channel for drainage, so that the water in the water permeable space can be discharged through permeation, avoiding residual rainwater, and at the same time after the water is discharged, the water in the water-absorbing expansion material will also be discharged, the lifting inner cylinder will drop to block the water guide channel, so that the permeated water can be absorbed and stored by the quartz sand water storage layer.
[0023] 3、The application can hinder drainage in a normal state by the setting of the deformation spiral plate, and the hindered drainage amount is also greater than the water inlet of the siphon space, when water storage is needed and the water level is not too high, the drainage amount can be effectively reduced to provide time for water permeation and storage, and when the water level is high, the middle part of the deformation spiral plate deforms upwards to increase the air drop between the spirals, thereby achieving the effect of increasing the drainage amount, and the deformation spiral plate can be made of a material that is easy to deform, the deformation resistance can be ignored, and after the water storage is full, the lifting of the lifting inner cylinder will make the middle part of the deformation spiral plate deform downwards to increase the drainage.
[0024] 4、The sleeve rises under the action of water buoyancy when the water level is high, resulting in the disappearance of the siphon space, thereby increasing the water inlet amount of the water guide pipeline, and when the water level decreases, the sleeve will drop to form a siphon space, thereby increasing the drainage depth and reducing the accumulated water amount that needs to be discharged through permeation; the circular table type rainwater grate and the filter frame are arranged to filter rainwater, avoiding the blockage of the water guide pipeline caused by impurities in the rainwater. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 It is a structural schematic diagram of the application;
[0026] Figure 2 It is a structural schematic diagram of the application Figure 1 It is an enlarged schematic diagram of the structure at A in the application;
[0027] Figure 3 It is an enlarged schematic diagram of the structure at B in the application; Figure 1 It is an enlarged schematic diagram of the structure at B in the application;
[0028] Figure 4 It is an enlarged schematic diagram of the structure at C in the application; Figure 1 It is an enlarged schematic diagram of the structure at C in the application;
[0029] Figure 5 It is a structural top view schematic diagram of the application;
[0030] Figure 6 It is a structural top view schematic diagram of the application;
[0031] In the figure: 1, planting soil layer; 2, bark covering layer; 3, gauze layer; 4, water permeable geotextile; 5, gravel layer; 6, quartz sand water storage layer; 7, storage recess; 8, water guide canvas; 9, green plants; 10, baffle; 11, side baffle; 12, round table type rainwater grate; 13, water guide pipe; 14, water permeable space; 15, siphon space; 16, sliding space; 17, filter frame; 18, clamping site; 19, filtering site; 20, sleeve; 21, counterweight plate; 22, floating plate; 23, lifting inner cylinder; 24, sliding through hole; 25, extension plate; 26, force bearing round plate; 27, water absorbing swelling material; 28, suspender; 29, deformation spiral plate; 30, center plate; 31, flow guide space; 32, support plate; 33, water guide channel; 34, biochar filter layer; 35, pebble layer; 36, drainage pipe. DETAILED DESCRIPTION
[0032] 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. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0033] The present application provides a road assembled anti-clogging biological retention device as shown in Figures 1-6 The present application provides a road assembled anti-clogging biological retention device as shown in
[0034] The bark covering layer 2 is laid on the upper surface of the planting soil layer 1, the gauze layer 3 is laid on the upper surface of the bark covering layer 2, the quartz sand water storage layer 6 is laid below the planting soil layer 1 and is divided by the water permeable geotextile 4, and the gravel layer 5 is laid below the quartz sand water storage layer 6.
[0035] A plurality of storage recesses 7 are reserved on the planting soil layer 1 and the bark covering layer 2, the quantitative drainage device and the water permeable filter assembly are placed inside the storage recess 7, the water permeable filter assembly is below the quantitative drainage device and is connected with the quartz sand water storage layer 6, and the water guide device is arranged in the gravel layer 5 and is communicated with the quantitative drainage device.
[0036] The water guide canvas 8 is embedded in the quartz sand water storage layer 6, the water guide canvas 8 extends upward to the upper part of the quartz sand water storage layer 6, the green plants 9 are planted on the planting soil layer 1, and the baffles 10 are arranged on both sides of the planting soil layer 1.
[0037] In this embodiment, the quartz sand water storage layer 6 is arranged to store rainwater and provide water source for the growth of the green plants 9 in the later period, so that the green plants 9 can be planted on the planting soil layer 1 for growth.
[0038] The setting of the storage recess 7 provides space for installation of the quantitative drainage device and the water-permeable filter assembly, so that rainwater can be normally discharged; the laying of the gravel layer 5 at the bottom of the quartz sand water storage layer 6 avoids water in the quartz sand water storage layer 6 from being discharged from the lower part;
[0039] The laying of the bark cover layer 2 and the gauze layer 3 can reduce evaporation of water and scouring of water flow, and the covered plants can also provide fertility for growth of the green plants 9 through rotting;
[0040] The setting of the water guide canvas 8 can avoid water in the lower layer from flowing upwards after water in the upper layer of the quartz sand water storage layer 6 is absorbed, and can also avoid the upper layer of the planting soil layer 1 from being too far from the quartz sand water storage layer 6 to normally store water in the quartz sand water storage layer 6.
[0041] In some embodiments of the present application, the quantitative drainage device comprises four side baffles 11, a circular-taip-shaped rainwater grate 12, a filter device, a water guide pipeline 13, a floating device, and a drainage adjusting device; the four side baffles 11 are respectively tightly attached to the four inner walls of the storage recess 7, the circular-taip-shaped rainwater grate 12 is installed at the opening of the storage recess 7 and limits the floating device, the filter device is installed inside the four side baffles 11 and is inserted into the water-permeable filter assembly, a water-permeable space 14 is formed between the filter device and the water-permeable filter assembly, the floating device is inserted into the filter device through the circular-taip-shaped rainwater grate 12 and slides up and down under the action of water floating force and gravity, the water guide pipeline 13 is fixed inside the filter device and communicates with the water guide device, a siphon space 15 is formed between the water guide pipeline 13 and the filter device, a sliding space 16 is formed in the lower part of the water guide pipeline 13, and the drainage adjusting device is fixed on the floating device and extends downward to the sliding space 16 and slides up and down in the sliding space 16 under the driving of the floating device.
[0042] In this embodiment, the top opening of the water guide pipeline 13 is higher than the horizontal plane of the water-permeable space 14, so that rainwater can be blocked when the rainwater time is short or small, enough time is provided for water storage, and the influence of too fast water discharge on water storage capacity is avoided; when the water volume is increased, water can be discharged through siphon action, the water discharge depth is increased, more water can be discharged, the residual part of the water depth is collected through permeation, and the residual depth is lower than the opening of the water guide pipeline 13, so that water can be quickly permeated and stored, and the stored water can also be quickly permeated and discharged after storage is completed;
[0043] The side baffle 11 can ensure the formation of the storage recess 7 and avoid rainwater from permeating to the surroundings; the water permeable space 14 is arranged to store rainwater, so that the rainwater can be slowly stored by permeation; the siphon space 15 is arranged to increase the discharge amount of rainwater and avoid excessive rainwater remaining after rainfall; and the sliding space 16 is arranged to provide space for the installation and sliding of the drainage adjusting device and limit the circumferential direction of the drainage adjusting device.
[0044] In some embodiments of the present application, the filtering device comprises a filtering frame 17, a clamping part 18 and a filtering part 19; the clamping part 18 is vertically arranged and clamps the filtering device, the filtering part 19 is fixed at the bottom of the clamping part 18 and inserted into the inside of the water permeable filtering assembly, the filtering part 19 is arranged in a circular truncated cone shape and inclined inward to clamp the water guide pipe 13, and the filtering frame 17 is fixed outside the clamping part 18 and in contact with the side baffle 11.
[0045] In this embodiment, the circular truncated cone-shaped rainwater grate 12 and the filtering frame 17 are arranged to filter rainwater, so as to avoid the impurities in the rainwater from causing the water guide pipe 13 to be blocked, and the inclined surfaces of the circular truncated cone-shaped rainwater grate 12 and the side baffle 11 form a V-shaped angle, which can better collect rainwater and make the rainwater completely discharged.
[0046] The clamping part 18 is arranged to position and guide the floating device, so as to avoid the floating device from being greatly lifted and lowered due to the waves formed by entering rainwater.
[0047] In some embodiments of the present application, the floating device comprises a sleeve 20, a counterweight plate 21 and a floating plate 22; the floating plate 22 is slidably installed in the inside of the circular truncated cone-shaped rainwater grate 12, the sleeve 20 is inserted into the inside of the floating plate 22 and forms the siphon space 15 with the water guide pipe 13 after descending, and the counterweight plate 21 is fixed at the top of the sleeve 20 and drives the sleeve 20 to descend when the water level descends.
[0048] In this embodiment, the counterweight plate 21 is arranged to have sufficient descending force when the water level descends, so that the sleeve 20 can normally descend to the bottom position by overcoming external force; and the floating plate 22 is arranged to drive the sleeve 20 to ascend according to the floating force when the water level rises.
[0049] When the water level is high, the sleeve 20 rises under the action of water buoyancy, so that the siphon space 15 disappears, thereby increasing the water inlet amount of the water guide pipe 13; and when the water level is low, the sleeve 20 descends to form the siphon space 15, so as to increase the drainage depth and reduce the amount of accumulated water that needs to be discharged by permeation.
[0050] In some embodiments of the present application, the water drainage adjusting device comprises a lifting inner cylinder 23, a force bearing assembly, and a water blocking device. The lifting inner cylinder 23 is installed inside the sliding space 16 and is liftable. The lower part of the water guide pipe 13 is provided with a sliding through hole 24 which is in communication with the sliding space 16. The force bearing assembly is fixed to the outside of the lifting inner cylinder 23 and extends into the interior of the quartz sand water storage layer 6 through the sliding through hole 24.
[0051] The force bearing assembly comprises a plurality of extension plates 25, a force bearing circular plate 26, and a water absorbing and swelling material 27. The plurality of extension plates 25 are fixed to the outside of the lifting inner cylinder 23 and extend through the sliding through hole 24 and are fixedly connected with the force bearing circular plate 26. The water absorbing and swelling material 27 is bonded below the extension plates 25. When the water storage capacity of the quartz sand water storage layer 6 reaches a certain degree, the force bearing assembly is provided with water absorbing and swelling, and the lifting inner cylinder 23 is lifted. When the moisture in the quartz sand water storage layer 6 disappears, the moisture in the water absorbing and swelling material 27 is discharged, and the lifting inner cylinder 23 is lowered under the action of gravity.
[0052] The water blocking device comprises a suspender 28, a deformation spiral plate 29, and a center plate 30. The deformation spiral plate 29 is fixed inside the lifting inner cylinder 23. The center plate 30 is fixed at the center of the deformation spiral plate 29. The two ends of the suspender 28 are fixedly connected with the center plate 30 and the counterweight plate 21, respectively. When the lifting inner cylinder 23 is lifted, the deformation spiral plate 29 is deformed to protrude downward. When the counterweight plate 21 is lifted, the deformation spiral plate 29 is deformed to protrude upward, thereby increasing the drainage.
[0053] In this embodiment, the lifting of the lifting inner cylinder 23 is used to control the discharge of excess water storage. The extension plates 25 and the force bearing circular plate 26 are provided to enable the lifting inner cylinder 23 to be lifted by external force and to increase the gravity of the lifting inner cylinder 23 after the external force disappears, so that the lifting inner cylinder 23 can normally descend.
[0054] The water absorbing effect of the water absorbing and swelling material 27 is smaller than that of the quartz sand water storage layer 6, so that the water absorbing and swelling material 27 can start to absorb water when the water storage reaches a certain amount. The water absorbing and swelling material 27 starts to swell by absorbing water and lifts the lifting inner cylinder 23 through the force bearing circular plate 26. At the same time, the water absorbing and swelling material 27 is in contact with the water guide canvas 8. When the rainwater in the quartz sand water storage layer 6 is consumed, the rainwater in the water absorbing and swelling material 27 is also consumed. The water absorbing and swelling material can be synthetic resin, polyacrylic acid, polyethylene glycol, etc.
[0055] The suspender 28 and the center plate 30 are provided to ensure that the deformation spiral plate 29 is fixed and to enable the deformation spiral plate 29 to deform or reset during the lifting of the counterweight plate 21.
[0056] The setting of the deformation spiral plate 29 can hinder drainage in the normal state, and the hindered drainage amount is greater than the water inlet of the siphon space 15, so that when water storage is needed and the water level is not too high, the drainage amount can be effectively reduced to provide time for water penetration and storage, and when the water level is high, the middle part of the deformation spiral plate 29 deforms upward to increase the air drop between the spirals, thereby increasing the drainage amount, and the deformation spiral plate 29 can be made of a material that deforms easily, and the deformation resistance can be ignored, and after the water storage is full, the upward movement of the lifting inner cylinder 23 causes the middle part of the deformation spiral plate 29 to deform downward to increase drainage.
[0057] In some embodiments of the present application, a guide flow space 31 is formed in the upper part of the quartz sand water storage layer 6, a support plate 32 is arranged in the guide flow space 31, the support plate 32 is fixed to the outer side of the water guide pipe 13 and supports the water permeable filter assembly, the guide flow space 31 is communicated with the water guide pipe 13 through a water guide channel 33, the water guide channel 33 is formed in the water guide pipe 13 and the lifting inner cylinder 23, and the structure that the lifting inner cylinder 23 is communicated with the water guide channel 33 after lifting to drain water, and the lifting inner cylinder 23 is lowered to stop the water guide channel 33 from draining water.
[0058] In this embodiment, the setting of the guide flow space 31 can collect accumulated water after the water storage is full, so that the collected water can be drained through the guide flow space 31; the setting of the support plate 32 supports the repulsion of the guide flow space 31;
[0059] The lifting and sliding of the lifting inner cylinder 23 adjusts the state of the water guide channel 33, after the water storage capacity of the quartz sand water storage layer 6 is full, the water-absorbing and expanding material 27 will absorb water and expand, due to the extrusion of the surrounding, the water-absorbing and expanding material 27 can only expand upward, the water guide channel 33 is opened by the lifting of the lifting inner cylinder 23 driven by the force-bearing circular plate 26 to drain water, so that the water in the water permeable space 14 can be drained through penetration, avoiding rainwater residue, and at the same time after the water storage is drained, the water in the water-absorbing and expanding material 27 will also be drained, the lifting inner cylinder 23 will be lowered to block the water guide channel 33, so that the penetrated water can be absorbed and stored by the quartz sand water storage layer 6.
[0060] In some embodiments of the present application, the water permeable filter assembly comprises a biochar filter layer 34 and a pebble layer 35; the pebble layer 35 is laid above the quartz sand water storage layer 6, and the biochar filter layer 34 is laid above the pebble layer 35 and in contact with the bottom of the side baffle 11.
[0061] In this embodiment, the setting of the biochar filter layer 34 can filter rainwater to avoid the harmful substances in the rainwater affecting the growth of the green plants 9.
[0062] In some embodiments of the present application, the water guide device comprises a drainage pipeline 36; the drainage pipeline 36 is arranged inside the gravel layer 5 and communicates with the water guide pipeline 13, and the drainage end of the drainage pipeline 36 communicates with the water collecting pool outside to transport rainwater into the inside of the water collecting pool.
[0063] In this embodiment, the rainwater can be transported into the water collecting pool by the drainage pipeline 36 for storage, which is convenient for later purification treatment or drainage of rivers, lakes and seas.
[0064] Working method of the present application:
[0065] When the rainwater is small, the rainwater is collected by the storage recess 7 to make the rainwater enter into the inside of the water permeable space 14 for storage, and since the top opening of the water guide pipeline 13 is high, the rainwater will permeate through the biochar filter layer 34 and the pebble layer 35 into the inside of the quartz sand water storage layer 6 for storage under the action of time;
[0066] When the storage capacity of the quartz sand water storage layer 6 is full, the inside of the flow guide space 31 is also provided with a storage permeable rainwater, and the water-absorbing swelling material 27 will also absorb water and swell to drive the lifting inner cylinder 23 to rise through the force-bearing circular plate 26, so that the water guide channel 33 can be connected, and the rainwater in the inside of the flow guide space 31 will enter into the inside of the water guide pipeline 13 through the water guide channel 33 and then enter into the drainage pipeline 36;
[0067] With the increase of the rainwater or the full storage of the quartz sand water storage layer 6, the water level of the rainwater will rise and exceed the height of the opening of the water guide pipeline 13, so that the rainwater will enter into the inside of the drainage pipeline 36 through the water guide pipeline 13 and then be discharged through the water collecting pool 37;
[0068] With the continuous increase of the rainwater, the water level will continue to rise to make the water level contact the floating plate 22, and the floating plate 22 will drive the sleeve 20 to rise under the action of the buoyancy to make the siphon space 15 disappear, so as to increase the drainage capacity of the water guide pipeline 13, and at the same time, the rain stops or decreases to make the water level begin to drop, and the sleeve 20 will also be lowered under the action of the counterweight plate 21 until it is inserted into the inside of the clamping part 18 to form the siphon space 15 and discharge water under the action of siphon.
[0069] When the sleeve 20 does not rise, the lifting of the lifting inner cylinder 23 will drive the deformation spiral plate 29 to move upward on the outside to increase the drainage of water; when the sleeve 20 and the counterweight plate 21 rise, the deformation spiral plate 29 will be driven by the suspender 28 to move upward in the middle and deform to increase the drainage capacity.
[0070] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A road-mounted anti-clogging bio-retention device, characterized in that, It includes a planting soil layer (1), a bark covering layer (2), a mesh layer (3), a permeable geotextile (4), a gravel layer (5), a quartz sand water storage layer (6), a quantitative drainage device, a water guiding device, and a permeable filter component; The bark covering layer (2) is laid on the upper surface of the planting soil layer (1), the mesh layer (3) is laid on the upper surface of the bark covering layer (2), the quartz sand water storage layer (6) is laid below the planting soil layer (1) and is divided by a permeable geotextile (4), and the gravel layer (5) is laid below the quartz sand water storage layer (6). Multiple storage depressions (7) are reserved on the planting soil layer (1) and the bark covering layer (2). The quantitative drainage device and the water permeable filter are placed inside the storage depression (7). The water permeable filter is located below the quantitative drainage device and connected to the quartz sand water storage layer (6). The water guiding device is set inside the gravel layer (5) and connected to the quantitative drainage device. The quartz sand water storage layer (6) is internally buried with a water-guiding canvas (8), which extends upward to the upper part of the quartz sand water storage layer (6). Green plants (9) are planted on the planting soil layer (1). Baffles (10) are provided on both sides of the planting soil layer (1). The quantitative drainage device includes four side baffles (11), a frustum-shaped rain grate (12), a filter device, a water guiding pipe (13), a floating device, and a drainage adjustment device. The four side baffles (11) are respectively attached to the four inner walls of the storage depression (7). The frustum-shaped rain grate (12) is installed at the opening of the storage depression (7) and limits the floating device. The filter device is installed on the four side baffles (11). The filter is inserted into the interior of the filter assembly and a permeable space (14) is formed between the filter device and the permeable filter assembly. The floating device is inserted into the interior of the filter device through the frustum-shaped rain grate (12) and slides up and down under the action of buoyancy and gravity. The water guide pipe (13) is fixed inside the filter device and connected to the water guide device. A siphon space (15) is formed between the water guide pipe (13) and the filter device. A sliding space (16) is opened at the lower part of the water guide pipe (13). The drainage adjustment device is fixed on the floating device and extends downward to the sliding space (16). Under the drive of the floating device, the drainage adjustment device slides up and down in the sliding space (16).
2. The road-mounted anti-blockage bio-retention device according to claim 1, characterized in that: The filtration device includes a filter frame (17), a clamping part (18), and a filtering part (19). The clamping part (18) is vertically arranged and clamps the filtration device. The filtering part (19) is fixed at the bottom of the clamping part (18) and inserted into the interior of the water-permeable filtration assembly. The filtering part (19) is set in the shape of a frustum and tilted inward to clamp the water guide pipe (13). The filter frame (17) is fixed on the outside of the clamping part (18) and contacts the side baffle (11).
3. The road-mounted anti-blockage bio-retention device according to claim 1, characterized in that: The floating device includes a sleeve (20), a counterweight plate (21), and a floating plate (22). The floating plate (22) is slidably installed inside the frustum-shaped rain grate (12). The sleeve (20) is inserted inside the floating plate (22) and forms a siphon space (15) with the water guide pipe (13) after descending. The counterweight plate (21) is fixed to the top of the sleeve (20) and drives the sleeve (20) to descend when the water level drops.
4. A road-mounted anti-blockage bio-retention device according to claim 1, characterized in that: The drainage adjustment device includes a lifting inner cylinder (23), a load-bearing component, and a water-blocking device. The lifting inner cylinder (23) is installed inside the sliding space (16) in a liftable manner, and the lower part of the water guide pipe (13) is provided with a sliding through hole (24) communicating with the sliding space (16). The load-bearing component is fixed on the outside of the lifting inner cylinder (23) and extends through the sliding through hole (24) into the interior of the quartz sand water storage layer (6).
5. A road-mounted anti-blockage bio-retention device according to claim 4, characterized in that: The load-bearing component includes multiple extension plates (25), a load-bearing circular plate (26), and a water-absorbing and expanding material (27). The multiple extension plates (25) are fixed to the outside of the lifting inner cylinder (23) and pass through the sliding through hole (24) and are fixedly connected to the load-bearing circular plate (26). The water-absorbing and expanding material (27) is bonded to the bottom of the extension plates (25) to form a structure in which the load-bearing component opens to absorb water and expand after the water storage capacity of the quartz sand water storage layer (6) reaches a certain level, and drives the lifting inner cylinder (23) to rise. After the water in the quartz sand water storage layer (6) is lost, the water in the water-absorbing and expanding material (27) will be discharged, and the lifting inner cylinder (23) will be lowered under the action of weight.
6. A road-mounted anti-blockage bio-retention device according to claim 4, characterized in that: The water-blocking device includes a boom (28), a deformation spiral plate (29), and a center plate (30). The deformation spiral plate (29) is fixed inside the lifting inner cylinder (23), and the center plate (30) is fixed at the center of the deformation spiral plate (29). The two ends of the boom (28) are fixedly connected to the center plate (30) and the counterweight plate (21) respectively, forming a structure in which the deformation spiral plate (29) deforms downward and bulges when the lifting inner cylinder (23) rises, and the deformation spiral plate (29) deforms upward and bulges when the counterweight plate (21) rises, thereby increasing the drainage capacity.
7. A road-mounted anti-blockage bio-retention device according to claim 1, characterized in that: The upper part of the quartz sand water storage layer (6) is provided with a flow guiding space (31). A support plate (32) is provided inside the flow guiding space (31). The support plate (32) is fixed on the outside of the water guiding pipe (13) and supports the water permeable filter assembly. The flow guiding space (31) is connected to the water guiding pipe (13) through the water guiding channel (33). The water guiding channel (33) is opened on the water guiding pipe (13) and the lifting inner cylinder (23), forming a structure in which the water guiding channel (33) is connected to drain water after the lifting inner cylinder (23) rises, and the water guiding channel (33) is misaligned and stops draining water after the lifting inner cylinder (23) falls.
8. A road-mounted anti-blockage bio-retention device according to claim 1, characterized in that: The permeable filtration assembly includes a biochar filter layer (34) and a pebble layer (35); the pebble layer (35) is laid on top of the quartz sand water storage layer (6), and the biochar filter layer (34) is laid on top of the pebble layer (35) and in contact with the bottom of the side baffle (11).
9. A road-mounted anti-blockage bio-retention device according to claim 1, characterized in that: The water guiding device includes a drainage pipe (36); the drainage pipe (36) is located inside the gravel layer (5) and connected to the water guiding pipe (13). The drainage end of the drainage pipe (36) is connected to the external water collection pool to transport rainwater to the inside of the water collection pool.
Citation Information
Patent Citations
Rainwater garden
CN212835409U