Drainage device for water supply and drainage construction of green belt
By designing water collection mechanisms, filter mechanisms and siphons in the green belt drainage system, the problems of drainage system blockage and inefficient construction efficiency are solved, and efficient drainage and construction efficiency are achieved.
Patent Information
- Application Number
- CN202411322234.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-03-28
AI Technical Summary
The existing green belt drainage system is prone to blockage when it rains, resulting in low drainage efficiency and adding construction steps in coastal saline-alkali areas, reducing construction efficiency.
A drainage device for water supply and drainage construction with greening is designed, including a water collection mechanism, a filtering mechanism and a siphon pipe. The water collection mechanism is installed inside the groove, and the filtering mechanism includes the first and second support mesh and geotextile layer, and the siphon pipe is used to accelerate the discharge of water.
By improving the drainage efficiency inside the trench, the possibility of accumulated water and sediment entering the drainage pipe is reduced, blockage is avoided, construction efficiency is improved, and salt in the soil is effectively eliminated to prevent raw salting.
Smart Images
Figure CN119711608A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of green belt construction, and in particular to a drainage device for drainage construction of green belts. Background Art
[0002] Green belt refers to a strip of land for greening. Green belts can beautify the city and eliminate visual fatigue for drivers. Planting trees in green belts can also change the spatial scale of roads, making the road space have a good aspect ratio. In addition, they can purify the environment, trap dust, reduce noise, absorb harmful gases and release oxygen.
[0003] When laying water supply and drainage pipes, trenches need to be opened on the surface of the soil layer. When it rains, rainwater accumulates in the trenches and is discharged through the drainage pipes. The rainwater mixes with the mud and sand inside the trenches and enters the drainage pipes, causing the drainage pipes to be easily blocked, which is not conducive to rapid drainage, resulting in serious water accumulation in the trenches. In addition, in coastal saline-alkali areas, in order to facilitate the growth of plants in green belts, a separate layer of pipes needs to be laid in the soil layer to drain the salt in the soil with water and control the groundwater level below the critical depth to achieve the purpose of soil desalination and prevention of salinization, thereby increasing the construction steps and reducing the construction efficiency.
[0004] Therefore, it is necessary to provide a new drainage device for drainage construction of green belts to solve the above-mentioned technical problems. Summary of the invention
[0005] The technical problem solved by the present invention is to provide a drainage device for drainage construction in green belts which can accelerate the drainage efficiency inside the groove and improve the construction efficiency.
[0006] In order to solve the above technical problems, the drainage device for drainage construction of green belts provided by the present invention includes: a water collecting mechanism, which is installed inside the groove, the interior of the water collecting mechanism is connected to the water supply and drainage pipe, and the water supply and drainage pipe is installed inside the groove; the side wall of the water collecting mechanism is installed with a water inlet mechanism for transporting the water accumulated in the groove, the water inlet mechanism includes a collecting pipe and a cylinder, the cylinder is installed inside the water collecting mechanism, and the collecting pipe is installed obliquely and symmetrically on the side wall of the cylinder; a fine sand layer is laid inside the groove, and the collecting pipe is located inside the fine sand layer; a truncated cone-shaped siphon is installed inside the bottom end of the cylinder, the top of the cylinder is threadedly connected to the cylinder cover, and a cover plate is installed at the bottom end of the cylinder cover, and the cover plate with a funnel shape inside covers the surface of the siphon; the side wall of the collecting pipe is used for passing A filtering mechanism for filtering salt water and muddy water, the filtering mechanism comprising a first supporting net, a second supporting net and a joint, the interior of the joint is threadedly connected to the collecting pipe, both ends of the first supporting net are fixedly connected to the joint, the side wall of the first supporting net is installed with the second supporting net, the side wall of the second supporting net is installed with a plurality of limit rods, and a layer of geotextile is rolled and laid on the surface of the first supporting net and the second supporting net; a flushing pipe is fixed to the interior of one of the joints through a supporting rod, a funnel-shaped flushing port is installed at one end of the flushing pipe, and a truncated cone is installed at the other end of the flushing pipe; the side wall of the other joint is threadedly connected to a screw rod, and limit rings are symmetrically installed on the side wall of the flushing pipe, and the screw rod abuts against the side wall of the limit ring; an adjustment mechanism for providing support to the first supporting net is installed on the side wall of the flushing pipe.
[0007] Preferably, the water collection mechanism includes a first water collection well and a second water collection well, the first water collection well and the second water collection well are installed inside the groove, the top of the second water collection well extends into the interior of the first water collection well, a water pump is installed inside the second water collection well, and a suction pipe and a water outlet pipe are respectively installed on the side walls of the water pump, and the suction pipe connects the interiors of the first water collection well and the second water collection well.
[0008] Preferably, a filter screen and a collecting trough are installed on the side wall of the first water collection well, the bottom surface of the collecting trough is inclined, and a plurality of ribs are installed on the inner bottom surface of the collecting trough.
[0009] Preferably, the water supply and drainage pipeline includes a drainage pipe and a water inlet pipe, the water inlet pipe and the drainage pipe are laid from top to bottom inside the groove, a plurality of spray pipes for watering plants are installed on the side wall of the water inlet pipe, a connecting pipe is installed on the side wall of the water inlet pipe, and the connecting pipe is connected to the interior of the first water collection well.
[0010] Preferably, the water outlet pipe connects the collecting pipe and the drain pipe, and solenoid valves are installed on the side walls of the water outlet pipe, the water pumping pipe, the collecting pipe and the connecting pipe.
[0011] Preferably, the adjustment mechanism includes a second connecting rod, and multiple second connecting rods are staggeredly installed on the side wall of the flushing pipe, the second connecting rod is internally slidably connected to the piston and the first connecting rod, one end of the first connecting rod is fixedly connected to the piston, and the other end of the first connecting rod is spherical and abuts against the inner wall of the first support net; a limit block is installed inside the second connecting rod, and the limit block abuts against the side wall of the piston; a stop ball is installed inside the flushing pipe, and the diameter of the stop ball is smaller than the maximum inner diameter of the flushing pipe.
[0012] Preferably, the surface of the first elastic supporting net is in a cone-shaped structure, and the side wall cross-section of the second elastic supporting net is in a "V"-shaped structure, and the height of the second supporting net gradually decreases from the middle to both ends.
[0013] Preferably, the collecting pipe is arranged inside the fine sand layer to be inclined upward, one end of the collecting pipe located inside the cylinder is the lowest point of the collecting pipe as a whole, and the inclination angle of the collecting pipe is 3 to 5°.
[0014] Preferably, when draining water from the groove, the fine sand layer covers three quarters of the surface of the first support net, and the second support net is located above the fine sand layer; when draining groundwater from the soil layer, the fine sand layer completely covers the first support net.
[0015] Compared with the related art, the drainage device for drainage construction of green belts provided by the present invention has the following beneficial effects: The present invention provides a drainage device for drainage construction of green belts. After a groove is opened, a layer of fine sand is laid at the bottom of the groove, and the collecting pipe and the filtering mechanism are placed in the fine sand layer; the joint is squeezed to make the two joints close to each other, and the flushing pipe enters the interior of the collecting pipe. The joint squeezes the first supporting net and the second supporting net with elasticity, and the first supporting net and the second supporting net move toward the center after being squeezed and then spread outward, and the maximum spacing between the second supporting nets becomes larger, and the second supporting net is fixed by using the limiting rod, and the geotextile layer on the surface of the first supporting net and the second supporting net is spread out, and the screw is used to contact the limiting ring to keep The state of the first supporting net; the fine sand layer covers three quarters of the surface of the first supporting net, and the second supporting net is located above the fine sand layer. When water accumulates inside the groove, the accumulated water mixes with the soil inside the groove to form mud; a small amount of accumulated water penetrates the fine sand layer, and the fine sand layer filters the accumulated water before contacting the geotextile layer inside the fine sand layer, so as to avoid the mud in the accumulated water clogging the geotextile layer inside the fine sand layer; a large amount of water directly contacts the geotextile layer on the surface of the fine sand layer, and at the same time, the first supporting net and the second supporting net are in a stretched state, which increases the contact area between the geotextile layer and the water, and at this time, the surface of the geotextile layer is stretched, so that water can penetrate the geotextile layer After entering the collecting pipe, the geotextile layer on the surface of the second supporting net with a "V"-shaped cross-section is directly in contact with water after being stretched open by the limiting rod, thereby increasing the contact area of mud and water penetrating the geotextile layer, further accelerating the drainage efficiency, and during the drainage process, most of the mud in the water settles in the geotextile layer on the surface of the second supporting net; when the accumulated water penetrates the geotextile layer through the collecting pipe and enters the interior of the cylinder, when the water level line inside the cylinder is higher than the surface of the siphon tube, when the water moves upward from the gap between the cover plate and the siphon tube and then enters the interior of the second water collection well through the siphon tube, the surface of the siphon tube covers the cover plate, thereby forming a siphon effect inside the cylinder, which has a great influence on the drainage effect. Suction is generated inside the collecting pipe, thereby accelerating the drainage efficiency inside the groove, and the water enters the geotextile layer of the water accumulation cup inside the cylinder for filtration, thereby preventing muddy water from entering the inside of the second water collection well and causing the water pump to be blocked; when the water supply and drainage pipe is installed when the water is drained inside the groove, the screw is rotated to separate from the limiting ring, and the first support net and the second support net are reset and contracted, the surface area is reduced, and the pressure inside the soil layer is reduced, thereby preventing the first support net and the second support net from being crushed, the first connecting rod contacts the side wall of the first support net, and the joint is rotated to place the second support net downward, so that the filtering mechanism and the collecting pipe form a salt drainage pipe inside the soil layer;When the groundwater inside the soil layer rises, it first contacts the fine sand layer and then the geotextile layer. At this time, the second support net is set downward, and the second support net is filled with fine sand to increase the overall firmness of the filtering mechanism, while increasing the contact area between the groundwater and the geotextile layer, and accelerating the efficiency of groundwater entering the collection pipe; when too much water inside the soil layer moves downward and contacts the geotextile layer on the surface of the first support net, since the geotextile layer is previously located in the fine sand layer, the geotextile layer on the surface of the second support net absorbs a large amount of mud during trench drainage, and the geotextile layer on the surface of the first support net does not absorb mud, effectively avoiding blockage, thereby facilitating the downward movement of water inside the soil layer through the geotextile layer into the collection pipe; in this device, the collection pipe and the filtering mechanism first remove the accumulated water inside the trench during water supply and drainage construction, and act as a salt discharge pipe after water supply and drainage construction, effectively preventing the groundwater from rising and causing the soil layer to return to alkali, quickly draining the excess water inside the soil layer, and draining the salt in the soil with the water, reducing the construction steps and accelerating the construction efficiency. ; BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A schematic diagram of the structure of a drainage device for drainage construction of green belts provided by the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of the structure at A shown; Figure 3 for Figure 2 An enlarged schematic diagram of the structure at B shown; Figure 4 for Figure 2 An enlarged schematic diagram of the structure at position C is shown; Figure 5 for Figure 1 A side view of the groove structure shown; Figure 6 for Figure 5 An enlarged schematic diagram of the structure at D shown; Figure 7 for Figure 6 A top view of the filter mechanism structure shown; Figure 8 for Figure 1 The schematic diagram of the internal structure of the water collection mechanism shown; Fig. 9 for Figure 8 An enlarged schematic diagram of the structure at position E is shown; Fig.10 for Figure 8 An enlarged schematic diagram of the structure at F is shown; Fig.11 for Figure 8 The internal structure of the water supply and drainage pipeline is shown; Fig.12 for Fig.11 An enlarged schematic diagram of the structure at G is shown.
[0017] Numbers in the figure: 1, green belt, 11, groove, 2, water collection mechanism, 21, first water collection well, 22, second water collection well, 23, water pump, 24, water outlet pipe, 25, collection tank, 26, filter screen, 27, ribs, 28, water pump, 29, solenoid valve, 3, water inlet mechanism, 31, collection pipe, 32, cylinder cover, 33, fine sand layer, 34, cover plate, 35, cylinder, 36, siphon, 4, filtering mechanism, 41, first branch Support net, 42, second support net, 43, geotextile layer, 44, joint, 45, flushing port, 46, support rod, 47, screw, 48, limit ring, 49, flushing pipe, 410, limit rod, 5, adjustment mechanism, 51, stop ball, 52, first connecting rod, 53, second connecting rod, 54, piston, 55, limit block, 6, water supply and drainage pipeline, 61, drainage pipe, 62, water inlet pipe, 63, connecting pipe, 64, spray pipe. DETAILED DESCRIPTION
[0018] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.
[0019] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 ,in Figure 1 A schematic diagram of the structure of a drainage device for drainage construction of green belts provided by the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of the structure at A shown; Figure 3 for Figure 2 An enlarged schematic diagram of the structure at B shown; Figure 4 for Figure 2 An enlarged schematic diagram of the structure at position C is shown; Figure 5 for Figure 1 A side view of the groove structure shown; Figure 6 for Figure 2 An enlarged schematic diagram of the structure at D shown; Figure 7 for Figure 6 A top view of the filter mechanism structure shown; Figure 8 for Figure 1 The schematic diagram of the internal structure of the water collection mechanism shown; Fig. 9 for Figure 8 An enlarged schematic diagram of the structure at position E is shown; Fig.10 for Figure 8 An enlarged schematic diagram of the structure at F is shown; Fig.11 for Figure 8 The internal structure of the water supply and drainage pipeline is shown; Fig.12 for Fig.11A drainage device for drainage construction in a green belt includes: a water collecting mechanism 2, the water collecting mechanism 2 is installed inside a groove 11, the side wall of the collecting pipe 31 is used for filtering salt water and muddy water, the filtering mechanism 4 includes a first supporting net 41, a second supporting net 42 and a joint 44, the inside of the joint 44 is threadedly connected to the collecting pipe 31, both ends of the first supporting net 41 are fixedly connected to the joint 44, the side wall of the first supporting net 41 is installed with the second supporting net 42, and the side wall of the second supporting net 42 is installed with a plurality of limit Rod 410, and a geotextile layer 43 is rolled on the surface of the first support net 41 and the second support net 42; a flushing pipe 49 is fixed inside one of the joints 44 through a support rod 46, one end of the flushing pipe 49 is installed with a funnel-shaped flushing port 45, and the other end of the flushing pipe 49 is installed in a truncated cone shape; the side wall of the other joint 44 is threadedly connected with a screw rod 47, and a limiting ring 48 is symmetrically installed on the side wall of the flushing pipe 49, and the screw rod 47 abuts against the side wall of the limiting ring 48; when the water inside the groove 11 is removed, the squeezing The joint 44 makes the two joints 44 approach each other, the flushing pipe 49 enters the interior of the collecting pipe 31, and the joint 44 squeezes the elastic first supporting net 41 and the second supporting net 42. After being squeezed, the first supporting net 41 and the second supporting net 42 move toward the center and then expand outward, and the maximum spacing between the second supporting nets 42 becomes larger. The second supporting net 42 is fixed by the limiting rod 410, and the geotextile layer 43 on the surface of the first supporting net 41 and the second supporting net 42 is expanded. The screw rod 47 abuts against the limiting ring 48 to maintain the state of the first supporting net 41; and the fine sand layer 33 covers three quarters of the surface of the first supporting net 41, and the second supporting net 42 is located above the fine sand layer 33. When water accumulates inside the groove 11, the accumulated water mixes with the soil inside the groove to form mud; a small amount of accumulated water passes through the fine sand layer 33, and the fine sand layer 33 filters the accumulated water and then contacts the geotextile layer 43 inside the fine sand layer 33, so as to prevent the mud in the accumulated water from clogging the geotextile layer 43 inside the fine sand layer 33;A large amount of water is in direct contact with the geotextile layer 43 on the surface of the fine sand layer 33. At the same time, the first support net 41 and the second support net 42 are in a stretched state, which increases the contact area between the geotextile layer 43 and the water. At this time, the surface of the geotextile layer 43 is stretched, which is convenient for water to penetrate the geotextile layer 43 and enter the collection pipe 31. The geotextile layer 43 on the surface of the second support net 42 with a "V" cross-section is directly in contact with water after being stretched open by the limit rod 410, which increases the contact area of muddy water penetrating the geotextile layer 43, further accelerating the drainage efficiency. In the drainage process, most of the mud in the water settles in the geotextile layer 43 on the surface of the second support net 42, avoiding the blockage of the geotextile layer 43 on the surface of the first support net 41. ;
[0020] The side wall of the water collecting mechanism 2 is installed with a water inlet mechanism 3 for conveying the water accumulated in the groove 11, and the water inlet mechanism 3 includes a collecting pipe 31 and a cylinder 35. The cylinder 35 is installed inside the water collecting mechanism 2, and the collecting pipe 31 is installed obliquely and symmetrically on the side wall of the cylinder 35; a fine sand layer 33 is laid inside the groove 11, and the collecting pipe 31 is located inside the fine sand layer 33; a truncated cone-shaped siphon 36 is installed inside the bottom end of the cylinder 35, and the top end of the cylinder 35 is threadedly connected to the cylinder cover 32, and a cover plate 34 is installed at the bottom end of the cylinder cover 32, and the cover plate 34 with a funnel shape inside Covering the surface of the siphon 36; when the accumulated water passes through the collecting pipe 31 and enters the interior of the cylinder 35, when the water level line inside the cylinder 35 is higher than the surface of the siphon 36, when the water moves upward from the gap between the cover plate 34 and the siphon 36 and then enters the interior of the second water collection well 22 through the siphon 36, the surface of the siphon 36 covers the cover plate 34, thereby forming a siphon effect inside the cylinder 35, generating suction to the interior of the collecting pipe 31, causing the water to move quickly inside the collecting pipe 31, thereby accelerating the drainage efficiency inside the groove 11.
[0021] The water collecting mechanism 2 includes a first water collecting well 21 and a second water collecting well 22. The first water collecting well 21 and the second water collecting well 22 are installed inside the groove 11. The top of the second water collecting well 22 extends into the first water collecting well 21. A water pump 23 is installed inside the second water collecting well 22. A pumping pipe 28 and an outlet pipe 24 are respectively installed on the side walls of the water pump 23. The pumping pipe 28 connects the first water collecting well 21 and the second water collecting well 22. In order to facilitate the accumulated water and groundwater in the groove 11 to enter the second water collecting well 22 through the collecting pipe 31, the water pump 23 operates to pump out the accumulated water in the second water collecting well 22 through the pumping pipe 28, and discharges the water from the second water collecting well 22 through the outlet pipe 24.
[0022] A filter screen 26 and a collecting tank 25 are installed on the side wall of the first water collection well 21. When there is too much surface water, water enters the interior of the collecting tank 25 and enters the interior of the first water collection well 21 through the filter screen 26, and impurities remain in the collecting tank 25. The bottom surface of the collecting tank 25 is inclined to facilitate the precipitation of impurities in the water at the bottom end of the collecting tank 25 and reduce the probability of impurities contacting the filter screen 26. A plurality of ribs 27 are installed on the inner bottom surface of the collecting tank 25 to enable the ribs 27 to block impurities from moving upward and adhering to the surface of the filter screen 26, so that the surface of the filter screen 26 remains unobstructed.
[0023] The interior of the water collection mechanism 2 is connected to the water supply and drainage pipe 6, and the water supply and drainage pipe 6 is installed inside the groove 11; the water supply and drainage pipe 6 includes a drainage pipe 61 and a water inlet pipe 62, and the water inlet pipe 62 and the drainage pipe 61 are laid from top to bottom inside the groove 11, and a plurality of spray pipes 64 for watering plants are installed on the side wall of the water inlet pipe 62, and a connecting pipe 63 is installed on the side wall of the water inlet pipe 62, and the connecting pipe 63 is connected to the interior of the first water collection well 21, in order to facilitate the water pump 23 to pump the water inside the first water collection well 21 and the second water collection well 22 into the interior of the drainage pipe 61, and spray water to the green belt through the water inlet pipe 62 and the spray pipe 64.
[0024] The water outlet pipe 24 connects the collecting pipe 31 and the drain pipe 61, and the side walls of the water outlet pipe 24, the water pumping pipe 28, the collecting pipe 31 and the connecting pipe 63 are all installed with solenoid valves 29, in order to control the opening and closing of the water outlet pipe 24, the water pumping pipe 28, the collecting pipe 31 and the connecting pipe 63 through the solenoid valve 29, control the water pump 23 to extract the accumulated water inside the water collection well, and control the water pump 23 to pump water into the drain pipe 61 or the collecting pipe 31.
[0025] The side wall of the flushing pipe 49 is installed with an adjustment mechanism 5 for providing support for the first support net 41; the adjustment mechanism 5 includes a second connecting rod 53, and a plurality of second connecting rods 53 are staggeredly installed on the side wall of the flushing pipe 49, the interior of the second connecting rod 53 is slidably connected to the piston 54 and the first connecting rod 52, one end of the first connecting rod 52 is fixedly connected to the piston 54, and the other end of the first connecting rod 52, which is spherical, abuts against the inner wall of the first support net 41; a limit block 55 is installed inside the second connecting rod 53, and the limit block 55 abuts against the side wall of the piston 54; a stop ball 51 is installed inside the flushing pipe 49, and the diameter of the stop ball 51 is smaller than the maximum inner diameter of the flushing pipe 49. When the interior of the filter mechanism 4 is backflushed, water enters the interior of the joint 44, most of the water enters the interior of the flushing pipe 49 through the funnel-shaped flushing port 45, and another part of the water enters the interior of the first support net 41 through the joint 44, and the water penetrates the first support net 41. and the geotextile layer 43 enters the interior of the fine sand layer 33 to backwash the geotextile layer 43; when water enters the interior of the flushing pipe 49 and contacts the blocking ball 51, the blocking ball 51 blocks the water from flowing inside the flushing pipe 49, so that the water entering the flushing pipe 49 enters the interior of the second connecting pipe 53, pushing the piston 54 and the first connecting pipe 52 to move outward, and the first connecting pipe 52 squeezes the first supporting net 41 outward, so that the first supporting net 41 expands slightly outward, and at the same time, the first supporting net 41 drives the geotextile layer 43 to move, and the geotextile layer 43 moves when the water inside the first supporting net 41 rushes outward, thereby accelerating the cleaning efficiency of the geotextile layer 43, and at the same time, the movement of the first supporting net 41 facilitates the movement of impurities precipitated around the first supporting net 41, so that the water rushing out from the inside of the geotextile layer 43 can wash away the impurities, change the position of the fine sand inside the fine sand layer 33, and restore the filtration performance of the fine sand layer 33 and the geotextile layer 43.
[0026] The surface of the first elastic support net 41 is in a cone-shaped structure, and the side wall cross-section of the second elastic support net 42 is in a "V"-shaped structure. The height of the second support net 42 gradually decreases from the middle to both ends. In order to facilitate the second support net 42 to be opened, the geotextile layer 43 on its surface is tightened, so that the accumulated water inside the groove 11 contacts the geotextile layer 43 on the surface of the second support net 42, thereby increasing the contact area between the geotextile layer 43 and water and accelerating the drainage efficiency.
[0027] The collecting pipe 31 is arranged to be inclined upward inside the fine sand layer 33. One end of the collecting pipe 31 located inside the cylinder 35 is the lowest point of the collecting pipe 31 as a whole. The inclination angle of the collecting pipe 31 is 3 to 5 degrees, in order to facilitate the water to flow downward inside the collecting pipe 31 under the action of gravity and enter the inside of the cylinder 35.
[0028] When draining the accumulated water inside the groove 11, the fine sand layer 33 covers three quarters of the surface of the first support net 41, and the second support net 42 is located above the fine sand layer 33 to prevent the mud in the muddy water from completely clogging the surface of the geotextile layer 43; when draining the groundwater inside the soil layer, the fine sand layer 33 completely covers the first support net 41, so that the fine sand layer 33 can protect the geotextile layer 43 and reduce the probability of clogging the geotextile layer 43.
[0029] The working principle of the drainage device for drainage construction of green belts provided by the present invention includes the following steps: before opening the groove 11, a plurality of the first water collection wells 21 and the second water collection wells 22 are constructed in the soil layer, and after the groove 11 is opened between the water collection wells, a layer of fine sand is laid at the bottom of the groove, the collecting pipe 31 and the filtering mechanism 4 are placed in the fine sand layer, the lowest point of the collecting pipe 31 is located inside the cylinder 35, and when installing the filtering mechanism 4, the joint 44 is squeezed so that the two joints 44 are close to each other, and the flushing pipe 49 is moved in. The first support net 41 and the second support net 42 are inserted into the collecting pipe 31, and the joint 44 squeezes the elastic first support net 41 and the second support net 42. After being squeezed, the first support net 41 and the second support net 42 move toward the center and then expand outward, and the maximum spacing between the second support nets 42 increases. The second support net 42 is fixed by the limiting rod 410, and the geotextile layer 43 on the surface of the first support net 41 and the second support net 42 is expanded. The screw 47 is used to abut against the limiting ring 48 to maintain the state of the first support net 41 (as shown in the attached figure). Figure 1 , Attachment Figure 2 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 and attached Figure 7As shown). At this time, the fine sand layer 33 covers three quarters of the surface of the first support net 41, and the second support net 42 is located above the fine sand layer 33. When water accumulates inside the groove 11, the accumulated water mixes with the soil inside the groove to form mud; a small amount of accumulated water passes through the fine sand layer 33, and the fine sand layer 33 filters the accumulated water and then contacts the geotextile layer 43 inside the fine sand layer 33 to prevent the mud in the accumulated water from clogging the geotextile layer 43 inside the fine sand layer 33; a large amount of water directly contacts the geotextile layer 43 on the surface of the fine sand layer 33, and at the same time, the first support net 41 and the second support net 42 The geotextile layer 43 is in a stretched state, which increases the contact area between the geotextile layer 43 and water. At this time, the surface of the geotextile layer 43 is straightened, which makes it easier for water to penetrate the geotextile layer 43 and enter the collecting pipe 31. The geotextile layer 43 on the surface of the second support net 42 with a "V"-shaped cross-section is directly in contact with water after being stretched open by the limiting rod 410, which increases the contact area between mud and water penetrating the geotextile layer 43, further accelerating the drainage efficiency. In the drainage process, most of the mud in the water settles in the geotextile layer 43 on the surface of the second support net 42, avoiding clogging of the geotextile layer 43 on the surface of the first support net 41. When the accumulated water passes through the collecting pipe 31 and enters the interior of the cylinder 35, and when the water level line inside the cylinder 35 is higher than the surface of the siphon 36, when the water moves upward from the gap between the cover plate 34 and the siphon 36 and then enters the interior of the second water collection well 22 through the siphon 36, the surface of the siphon 36 covers the cover plate 34, thereby forming a siphon effect inside the cylinder 35, generating suction force on the interior of the collecting pipe 31, causing the water to move quickly inside the collecting pipe 31, thereby accelerating the drainage efficiency inside the groove 11. A hydraulic sensor is installed inside the second water collection well 22. When the water level inside the second water collection well 22 is too high, the water pump 23 is turned on to allow the water pump 23 to pump out the water inside the second water collection well 22 through the pumping pipe 28 and the outlet pipe 24. When laying the water supply and drainage pipe 6, the screw rod 47 is rotated to separate from the limiting ring 48, the first support net 41 and the second support net 42 are reset and contracted, the height of the first support net 41 is reduced, and at the same time, the overall surface area is reduced and the pressure inside the soil layer is reduced, thereby avoiding the first support net 41 and the second support net 42 from being crushed, the first connecting rod 52 contacts the side wall of the first support net 41, and the joint 44 is rotated to place the second support net 42 downward, so that the filter mechanism 4 and the collecting pipe 31 form a salt discharge pipe inside the soil layer, and a layer of fine sand is covered on the surface of the filter mechanism 4 again, and the drainage pipe 61, the water inlet pipe 62 and the spray pipe 64 are laid in sequence, and then the trench 11 is backfilled.Open the water collection well, connect the pumping pipe 28 to the first water collection well 21 and the second water collection well 22, and then connect the outlet pipe 24 to the drainage pipe 61 and the collection pipe 31. When there is too much water on the surface of the green belt 1, the water enters the interior of the collection tank 25 and enters the interior of the first water collection well 21 through the filter 26, and the impurities remain in the interior of the collection tank 25. The bottom surface of the collection tank 25 is inclined so that the impurities in the water are precipitated at the bottom of the collection tank 25, reducing the probability of the impurities contacting the filter 26, and a plurality of ribs 27 are installed on the inner bottom surface of the collection tank 25. The ribs 27 prevent the impurities from moving upward and adhering to the surface of the filter 26, so that the surface of the filter 26 remains unobstructed. A liquid level sensor is also installed inside the first water collection well 21, so that the water pump 23 can pump the inside of the first water collection well 21 into the interior of the drainage pipe 61. After the trench 11 is backfilled, the groundwater inside the soil layer rises and first contacts the fine sand layer 33 and then the geotextile layer 43. At this time, the second support net 42 is set downward, and the second support net 42 is filled with fine sand to increase the overall firmness of the filtering mechanism 4, while increasing the contact area between the groundwater and the geotextile layer 43, thereby accelerating the efficiency of groundwater entering the collection pipe 31; when too much water inside the soil layer moves downward and contacts the geotextile layer 43 on the surface of the first support net 41, since the geotextile layer 43 was previously located in the fine sand layer 33, the geotextile layer 43 on the surface of the second support net 42 absorbs a large amount of soil during trench drainage, and the geotextile layer 43 on the surface of the first support net 41 does not absorb mud, effectively avoiding blockage, thereby facilitating the water inside the soil layer to move downward through the geotextile layer 43 and enter the collection pipe 31, thereby accelerating drainage efficiency.When the geotextile layer 43 is backwashed, the water inside the first water collection well 21 is drained, the solenoid valve 29 on the side wall of the connecting pipe 63 is opened, water is supplied to the first water collection well 21 through the water inlet pipe 62 and the connecting pipe 63, the solenoid valve 29 on the side wall of the water pumping pipe 28 inside the first water collection well 21 is opened, the solenoid valve 29 on the side wall of the water outlet pipe 24 connected to the collecting pipe 31, the other solenoid valves 29 are closed, the water pump 23 is opened, and the water inside the first water collection well 21 is supplied with water. The water of part is pumped into the interior of the collecting pipe 31; the water enters the interior of the joint 44 through the collecting pipe 31, most of the water enters the interior of the flushing pipe 49 through the funnel-shaped flushing port 45, and the other part of the water enters the interior of the first supporting net 41 through the joint 44, and the water penetrates the first supporting net 41 and the geotextile layer 43 into the interior of the fine sand layer 33, and backwashes the geotextile layer 43; when the water enters the interior of the flushing pipe 49 and contacts the baffle ball 51, the baffle ball 51 blocks the water from entering. The internal flow of the flushing pipe 49 causes the water entering the flushing pipe 49 to enter the interior of the second connecting pipe 53, pushing the piston 54 and the first connecting pipe 52 to move outward, and the first connecting pipe 52 squeezes the first supporting net 41 outward, causing the first supporting net 41 to expand slightly outward, and at the same time, the first supporting net 41 drives the geotextile layer 43 to move. When the water inside the first supporting net 41 rushes outward, the geotextile layer 43 moves, thereby accelerating the cleaning efficiency of the geotextile layer 43. At the same time, the movement of the first supporting net 41 facilitates the movement of impurities precipitated around the first supporting net 41, and facilitates the water rushing out from the inside of the geotextile layer 43 to wash away the impurities, change the position of the fine sand inside the fine sand layer 33, and restore the filtering performance of the fine sand layer 33 and the geotextile layer 43; the water inside the flushing pipe 49 enters the inside of the next collecting pipe 31 from the gap between the blocking ball 51 and the flushing pipe 49, thereby facilitating the water to quickly enter the inside of each of the filtering mechanisms 4, thereby flushing each of the filtering mechanisms 4.
[0030] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A drainage device for drainage construction in green belts, characterized in that: include: A water collection mechanism (2), the water collection mechanism (2) being installed inside the groove (11), the interior of the water collection mechanism (2) being connected to a water supply and drainage pipe (6), and the water supply and drainage pipe (6) being installed inside the groove (11); The side wall of the water collection mechanism (2) is installed with a water inlet mechanism (3) for conveying the water accumulated inside the groove (11), the water inlet mechanism (3) comprising a collecting pipe (31) and a cylinder (35), the cylinder (35) being installed inside the water collection mechanism (2), and the collecting pipe (31) being installed on the side wall of the cylinder (35) in an inclined and symmetrical manner; a fine sand layer (33) is laid inside the groove (11), and the collecting pipe (31) is located inside the fine sand layer (33); a truncated cone-shaped siphon (36) is installed inside the bottom end of the cylinder (35), the top end of the cylinder (35) is threadedly connected to the cylinder cover (32), a cover plate (34) is installed at the bottom end of the cylinder cover (32), and the cover plate (34) having a funnel shape inside covers the surface of the siphon (36); The side wall of the collecting pipe (31) is used for a filtering mechanism (4) for filtering salt water and muddy water. The filtering mechanism (4) comprises a first supporting net (41), a second supporting net (42) and a joint (44). The inside of the joint (44) is threadedly connected to the collecting pipe (31). Both ends of the first supporting net (41) are fixedly connected to the joint (44). The side wall of the first supporting net (41) is mounted with the second supporting net (42). The side wall of the second supporting net (42) is mounted with a plurality of limiting rods (410). 41) and the surface of the second support net (42) are rolled and laid with a geotextile layer (43); a flushing pipe (49) is fixed inside one of the joints (44) through a support rod (46), one end of the flushing pipe (49) is installed with a funnel-shaped flushing port (45), and the other end of the flushing pipe (49) is installed in a truncated cone shape; the side wall of the other joint (44) is threadedly connected to the screw (47), and the side wall of the flushing pipe (49) is symmetrically installed with a limiting ring (48), and the screw (47) abuts against the side wall of the limiting ring (48); An adjustment mechanism (5) for providing support for the first support net (41) is installed on the side wall of the flushing pipe (49).
2. The drainage device for drainage construction of green belts according to claim 1 is characterized in that: The water collection mechanism (2) comprises a first water collection well (21) and a second water collection well (22); the first water collection well (21) and the second water collection well (22) are installed inside the groove (11); the top of the second water collection well (22) extends into the interior of the first water collection well (21); a water pump (23) is installed inside the second water collection well (22); a water pump (28) and a water outlet pipe (24) are respectively installed on the side walls of the water pump (23); the water pump (28) connects the interior of the first water collection well (21) and the interior of the second water collection well (22).
3. The drainage device for drainage construction of green belts according to claim 2 is characterized in that: A filter screen (26) and a collection trough (25) are installed on the side wall of the first water collection well (21); the bottom surface of the collection trough (25) is arranged at an inclination, and a plurality of ribs (27) are installed on the inner bottom surface of the collection trough (25).
4. The drainage device for drainage construction of green belts according to claim 2, characterized in that: The water supply and drainage pipeline (6) comprises a drainage pipe (61) and a water inlet pipe (62). The water inlet pipe (62) and the drainage pipe (61) are laid from top to bottom inside the groove (11). A plurality of spray pipes (64) for watering plants are installed on the side wall of the water inlet pipe (62). A connecting pipe (63) is installed on the side wall of the water inlet pipe (62), and the connecting pipe (63) is connected to the inside of the first water collection well (21).
5. The drainage device for drainage construction of green belts according to claim 4, characterized in that: The water outlet pipe (24) is connected to the collecting pipe (31) and the drain pipe (61), and solenoid valves (29) are installed on the side walls of the water outlet pipe (24), the water pumping pipe (28), the collecting pipe (31) and the connecting pipe (63).
6. The drainage device for drainage construction of green belts according to claim 1, characterized in that: The regulating mechanism (5) comprises a second connecting rod (53), a plurality of second connecting rods (53) are staggeredly installed on the side wall of the flushing pipe (49), the interior of the second connecting rod (53) is slidably connected to the piston (54) and the first connecting rod (52), one end of the first connecting rod (52) is fixedly connected to the piston (54), and the other end of the first connecting rod (52) is spherical and contacts the inner wall of the first supporting net (41); a limit block (55) is installed inside the second connecting rod (53), and the limit block (55) contacts the side wall of the piston (54); a stop ball (51) is installed inside the flushing pipe (49), and the diameter of the stop ball (51) is smaller than the maximum inner diameter of the flushing pipe (49).
7. The drainage device for drainage construction of green belts according to claim 1, characterized in that: The surface of the first elastic support net (41) is in a cone-shaped structure, and the side wall cross-section of the second elastic support net (42) is in a "V"-shaped structure, and the height of the second support net (42) gradually decreases from the middle to both ends.
8. The drainage device for drainage construction of green belts according to claim 1, characterized in that: The collecting pipe (31) is arranged inside the fine sand layer (33) in an upwardly inclined manner, and one end of the collecting pipe (31) located inside the cylinder (35) is the lowest point of the entire collecting pipe (31). The inclination angle of the collecting pipe (31) is 3 to 5 degrees.
9. The drainage device for drainage construction of green belts according to claim 1, characterized in that: When draining water accumulated inside the groove (11), the fine sand layer (33) covers three quarters of the surface of the first support net (41), and the second support net (42) is located above the fine sand layer (33); when draining groundwater inside the soil layer, the fine sand layer (33) completely covers the first support net (41).