A detachable internal purification ditch
By burying a protective shell and activated carbon storage chamber in the roadside ditch, and combining it with a layer of fine sand and gravel, the environmental pollution problem caused by untreated sewage in the ditch was solved, achieving efficient water purification and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA ACAD OF TRANSPORTATION SCI
- Filing Date
- 2025-05-28
- Publication Date
- 2026-08-04
AI Technical Summary
Untreated sewage is discharged directly into roadside ditches, causing environmental pollution. Existing technologies are insufficient to effectively purify road surface runoff, impacting both the road and natural water environments.
Design a ditch with a removable internal purification function. By burying a protective shell in the soil subgrade, an activated carbon storage chamber is set inside, and a layer of fine sand, gravel and turf is laid. The activated carbon adsorbs pollutants, and the combination of a threaded and support ring structure ensures stable fixation, thereby achieving sewage purification.
It effectively purifies the water in the inner cavity of the roadside ditch, reduces pollutant emissions, protects the roadside environment, and facilitates regular replacement of activated carbon to maintain the purification effect.
Smart Images
Figure CN224591267U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of roadside ditches, and more particularly to a roadside ditch with an internally detachable purification function. Background Technology
[0002] With the continuous development of my country's highway transportation industry and the successive formation of highway networks in various regions, tire particles formed by vehicle friction during highway operation, fuel combustion emissions, engine oil and vehicle transport material leaks, and particulate matter generated by fuel and brake connection devices constitute highway surface runoff water pollution.
[0003] Road runoff wastewater is mainly discharged into roadside ditches. If the wastewater in the ditches is not treated, it will cause cumulative pollution to the road environment or natural water bodies. In order to filter pollutants in the ditches, a detachable ditch with purification function has been designed. The ditch purifies the inflowing water by laying a fine sand covering layer, a gravel covering layer, a soil covering layer and turf in its inner cavity, and activated carbon can adsorb pollutants in the water to a large extent. At the same time, the protective shell and the threaded connection can be replaced according to specific time, so as to filter pollutants in the ditch and achieve a better purification effect on the water flowing through the inner cavity of the roadside ditch, so as to better protect the roadside environment. Utility Model Content
[0004] To address the existing technical problems, this application provides a side ditch with internally removable purification function.
[0005] This application provides a detachable, internally purifying ditch, employing the following technical solution: A detachable, internally purifying ditch includes a roadside ditch excavated on the surface of a soil subgrade. Multiple filtration devices are spaced at intervals within the inner cavity of the soil subgrade. Each filtration device includes a protective outer shell embedded within the inner cavity of the soil subgrade. The inner cavity of the protective outer shell is threaded, and the top surface of the protective outer shell has multiple rectangular water inlets. Fine-mesh filter screens are fixedly connected to the inner cavities of the rectangular water inlets. An activated carbon storage cavity is fixedly connected to the inner cavity of the protective outer shell via threads. The top of the activated carbon storage chamber is welded with a lever ring. The inner cavity of the activated carbon storage chamber is welded with two inner lining support rings. Each of the two inner lining support rings has an elastic filter plate sliding on its top. The inner cavity of the activated carbon storage chamber is filled with activated carbon, which is located on top of the elastic filter plates. A fine-pore filter plate is fixedly connected to the inner cavity of the lever ring. The bottom of the protective shell has a water outlet. The bottom of the activated carbon storage chamber is connected to a water outlet pipe. The bottom surface of the water outlet pipe is welded to the water outlet. The bottom of the inner cavity of the roadside ditch is covered with a fine sand covering layer, and the top of the fine sand covering layer is covered with a gravel covering layer.
[0006] By adopting the above technical solution, the protective shell is buried in the soil subgrade, and then the activated carbon storage chamber is placed in the inner cavity of the protective shell. The activated carbon storage chamber is fixedly connected to the inner cavity of the protective shell by the action of threads. Then, a fine sand covering layer, a gravel covering layer, a soil covering layer, and turf are laid, and the thickness of the fine sand covering layer is consistent with the height of the rectangular water inlet hole. This can filter pollutants in the ditch, so that the water flowing through the inner cavity of the roadside ditch can be purified better, thus better protecting the roadside environment.
[0007] Preferably, the inner cavities of the roadside ditch are covered with soil layers on both the left and right sides, and the surface of the soil layers is covered with turf.
[0008] Preferably, a filter cover is slidably connected to the top of the inner cavity of the protective housing, and the filter cover is located on top of the lever ring.
[0009] Preferably, the inner cavity of the roadside ditch is connected to a filter pipe, the top of the protective shell is fixedly connected to a cover, the filter pipe is connected to the cover, the top of the filter pipe is located at the bottom of the fine sand covering layer, and an external ring is welded to the surface of the protective shell.
[0010] By adopting the above technical solution and setting the external ring, the protective shell can have better grip in the soil subgrade, and the position of the protective shell in the soil subgrade can be better fixed, so that it will not easily sink.
[0011] Preferably, the outer ring is located near the bottom of the protective shell, and a reinforcing support ring is fixedly connected to the bottom of the inner cavity of the protective shell.
[0012] By adopting the above technical solution and setting up a reinforced support ring, the position of the activated carbon storage cavity in the inner cavity of the protective shell can be better supported. At the same time, the extreme position of the activated carbon storage cavity in the inner cavity of the protective shell can be determined, which can prevent the activated carbon storage cavity from being too high or too low in the inner cavity of the protective shell.
[0013] Preferably, the activated carbon storage cavity is located at the top of the reinforcing support ring, and a bottom cover is welded to the bottom of the inner cavity of the protective shell.
[0014] Preferably, the water outlet pipe is located inside the bottom cover, and the bottom end of the water outlet pipe is connected to a drain pipe. The bottoms of multiple filter devices can be connected to a drain pipe to discharge purified water, or the purified water can be discharged separately.
[0015] In summary, this application includes at least one of the following beneficial technical effects:
[0016] 1. This utility model involves burying a protective shell in the soil subgrade, then placing an activated carbon storage chamber inside the protective shell, and fixing the activated carbon storage chamber to the inner cavity of the protective shell using threads. Subsequently, a fine sand covering layer, a gravel covering layer, a soil covering layer, and turf are laid, with the thickness of the fine sand covering layer consistent with the height of the rectangular water inlet hole. This allows for the filtration of pollutants in the ditch, resulting in better purification of the water flowing through the inner cavity of the roadside ditch and thus better protecting the roadside environment.
[0017] 2. By setting an external ring, this utility model can give the protective shell a better grip in the soil subgrade, and can better fix the position of the protective shell in the soil subgrade, so that it will not easily sink.
[0018] 3. By setting up a reinforced support ring, this utility model can provide better support for the position of the activated carbon storage cavity in the inner cavity of the protective shell, and at the same time determine the extreme position of the activated carbon storage cavity in the inner cavity of the protective shell, thus avoiding the activated carbon storage cavity being too high or too low in the inner cavity of the protective shell. Attached Figure Description
[0019] Figure 1 This is a front view schematic diagram of the structure of this utility model.
[0020] Figure 2 This is a front sectional view of the structure of this utility model.
[0021] Figure 3 This is a side view sectional diagram of the structure of this utility model.
[0022] Figure 4 This is a schematic diagram of the protective shell structure of this utility model.
[0023] Figure 5 This is a cross-sectional schematic diagram of the protective shell structure of this utility model.
[0024] Figure 6 This is a cross-sectional view of the protective shell of this utility model.
[0025] Explanation of reference numerals in the attached drawings: 1. Soil subgrade; 2. Roadside ditch; 3. Filter device; 31. Protective shell; 32. Thread; 33. Rectangular inlet hole; 34. Fine-pore filter screen; 35. Activated carbon storage chamber; 36. Support ring; 37. Inner lining support ring; 38. Elastic filter plate; 39. Activated carbon; 4. Fine-pore filter plate; 5. Outlet; 6. Outlet pipe; 7. Fine sand covering layer; 8. Gravel covering layer; 9. Soil covering layer; 10. Turf; 11. Filter cover plate; 12. External ring; 13. Reinforcing support ring; 14. Bottom cover. Detailed Implementation
[0026] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.
[0027] Example 1:
[0028] Combination Figure 2 , Figure 3 and Figure 4 This application discloses a roadside ditch with a detachable internal purification function, including a roadside ditch 2 excavated on the surface of a soil subgrade 1. The left and right sides of the inner cavity of the roadside ditch 2 are covered with a soil layer 9, and the surface of the soil layer 9 is covered with turf 10. Multiple filter devices 3 are arranged at intervals within the inner cavity of the soil subgrade 1. Each filter device 3 includes a protective shell 31 buried within the inner cavity of the soil subgrade 1. A filter cover 11 is slidably connected to the top of the inner cavity of the protective shell 31, and the filter cover 11 is located at the top of a support ring 36. The inner cavity of the protective shell 31 has threads 32. Multiple rectangular water inlets 33 are opened on the top surface of the protective shell 31. Fine-mesh filter screens 34 are fixedly connected to the inner cavities of the rectangular water inlets 33. An activated carbon storage cavity 35 is provided within the inner cavity of the protective shell 31 via the threads 32. A support ring 36 is welded to the top of the activated carbon storage cavity 35. Two inner lining support rings 37 are welded to the inner cavity of the activated carbon storage cavity 35. The tops of the two inner lining support rings 37 are... A sliding elastic filter plate 38 is used. The inner cavity of the activated carbon storage chamber 35 is filled with activated carbon 39, which is located on top of the elastic filter plate 38. A fine-pore filter plate 4 is fixedly connected to the inner cavity of the lever ring 36. A water outlet 5 is opened at the bottom of the protective shell 31. A water outlet pipe 6 is connected to the bottom of the activated carbon storage chamber 35. The bottom surface of the water outlet pipe 6 is welded to the water outlet 5. A fine sand covering layer 7 is laid at the bottom of the inner cavity of the roadside ditch 2. A gravel covering layer 8 is laid on top of the fine sand covering layer 7. A filter pipe is connected to the inner cavity of the roadside ditch 2. A cover is fixedly connected to the top of the protective shell 31. The filter pipe is connected to the cover. The top of the filter pipe is located at the bottom of the fine sand covering layer 7. An external ring 12 is welded to the surface of the protective shell 31. The setting of the external ring 12 can make the protective shell 31 have better grip in the soil subgrade 1, and can make the protective shell 31 in the soil subgrade 1 more fixed and not easily sink.
[0029] Example 2:
[0030] Combination Figure 1 , Figure 5 and Figure 6An external circular ring 12 is located near the bottom of the protective shell 31. A reinforcing support ring 13 is fixedly connected to the bottom of the inner cavity of the protective shell 31. The reinforcing support ring 13 can provide better support for the position of the activated carbon storage cavity 35 in the inner cavity of the protective shell 31, and at the same time, it can determine the extreme position of the activated carbon storage cavity 35 in the inner cavity of the protective shell 31, thus avoiding the activated carbon storage cavity 35 being too high or too low in the inner cavity of the protective shell 31. The activated carbon storage cavity 35 is located at the top of the reinforcing support ring 13. A bottom cover 14 is welded to the bottom of the inner cavity of the protective shell 31. The water outlet pipe 6 is located in the inner cavity of the bottom cover 14, and the bottom end of the water outlet pipe 6 is connected to a drain pipe.
[0031] Working Principle: When using this utility model, the user buries the protective shell 31 in the soil subgrade 1, then places the activated carbon storage chamber 35 inside the protective shell 31. Next, the user rotates the lever ring 36, causing the activated carbon storage chamber 35 to rotate within the protective shell 31. At this time, the thread 32 secures the activated carbon storage chamber 35 to the inner cavity of the protective shell 31, connecting the water outlet pipe 6 to the water outlet 5. Then, the filter cover plate 11 is placed inside the protective shell 31, positioned on top of the lever ring 36. Finally, a fine sand covering layer 7 is laid, with its thickness matching the height of the rectangular water inlet hole 33. First, a gravel covering layer 8 is laid, followed by a soil covering layer 9 and turf 10. This allows the water flowing through the inner cavity of the roadside ditch 2 to be purified and filtered. After a certain period of time, the gravel covering layer 8 is removed to expose the filter cover 11. The filter cover 11 is then removed, and the lever ring 36 is rotated to make the activated carbon storage chamber 35 rotate again inside the protective shell 31 until the activated carbon storage chamber 35 is detached from the inner cavity of the protective shell 31. Then, the new activated carbon storage chamber 35 is installed inside the inner cavity of the protective shell 31, which can filter pollutants in the ditch and achieve a better purification effect on the water flowing through the inner cavity of the roadside ditch 2, thus better protecting the roadside environment.
[0032] In summary, this internally detachable ditch with purification function, by burying the protective shell 31 in the soil subgrade 1, then placing the activated carbon storage chamber 35 inside the protective shell 31, and fixing the activated carbon storage chamber 35 to the inner cavity of the protective shell 31 with the help of the thread 32, and then laying a fine sand covering layer 7, a gravel covering layer 8, a soil covering layer 9 and turf 10, and making the thickness of the fine sand covering layer 7 consistent with the height of the rectangular water inlet 33, can filter pollutants in the ditch, so that the water flowing through the inner cavity of the roadside ditch 2 can be purified better, thus better protecting the roadside environment.
[0033] The purification effect experiment of this novel method:
[0034] Specifically, the slope layout is completed using the structure of Embodiment 1 of this novel invention. The fine-pore filter screen has a pore size of 1mm. The thickness of the fine sand cover layer in the purification layer of the slope is 3cm, the thickness of the gravel cover layer is 5cm, the thickness of the soil cover layer is 2cm, and the thickness of the turf is 3cm. The ditch body is an inverted trapezoid, the slope gradient is 1:4, and a filter device is installed every 5m at the bottom of the slope. The test wastewater with a set initial pollutant concentration is filtered and then flows out uniformly from the return pipe below. The filtered runoff flows into the water tank to measure its purification efficiency. It is determined that the device can achieve an adsorption efficiency of 77% for Cr and an adsorption capacity of 0.205mg / g, and an adsorption efficiency of 65% for Cu and an adsorption capacity of 1.68mg / g.
[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A detachable internal purification trench, characterized in that: The system includes a roadside ditch (2) on the surface of a soil subgrade (1). Multiple filtration devices (3) are installed at intervals within the inner cavity of the soil subgrade (1). Each filtration device (3) includes a protective shell (31) embedded within the inner cavity of the soil subgrade (1). The inner cavity of the protective shell (31) has threads (32). Multiple rectangular water inlets (33) are provided on the top surface of the protective shell (31). Fine-mesh filter screens (34) are fixedly connected to the inner cavities of the rectangular water inlets (33). An activated carbon storage cavity (35) is provided within the inner cavity of the protective shell (31) via threads (32). A lever ring (36) is welded to the top of the activated carbon storage cavity (35). The inner cavity is welded with two inner lining support rings (37), and the top of each of the two inner lining support rings (37) is slidably fitted with an elastic filter plate (38). The inner cavity of the activated carbon storage cavity (35) is filled with activated carbon (39), and the activated carbon (39) is located on top of the elastic filter plate (38). The inner cavity of the lever ring (36) is fixedly connected with a fine pore filter plate (4). The bottom of the protective shell (31) is opened with a water outlet (5). The bottom of the activated carbon storage cavity (35) is connected with a water outlet pipe (6). The bottom surface of the water outlet pipe (6) is welded to the water outlet (5). The bottom of the inner cavity of the roadside ditch (2) is covered with a fine sand covering layer (7), and the top of the fine sand covering layer (7) is covered with a gravel covering layer (8).
2. The internally removable trench with purification function according to claim 1, characterized in that: The inner cavity of the roadside ditch (2) is covered with soil layer (9) on both the left and right sides, and the surface of the soil layer (9) is covered with turf (10).
3. The internally removable trench with purification function according to claim 2, characterized in that: A filter cover (11) is slidably connected to the top of the inner cavity of the protective shell (31), and the filter cover (11) is located on the top of the lever ring (36).
4. The detachable internal purification trench according to claim 3, characterized in that: The inner cavity of the roadside ditch (2) is connected to a filter pipe, and the top of the protective shell (31) is fixedly connected to a cover. The filter pipe is connected to the cover, and the top of the filter pipe is located at the bottom of the fine sand covering layer (7). An external ring (12) is welded to the surface of the protective shell (31).
5. The detachable internal purification trench according to claim 4, characterized in that: The external ring (12) is located near the bottom of the protective shell (31), and a reinforcing support ring (13) is fixedly connected to the bottom of the inner cavity of the protective shell (31).
6. The detachable internal purification trench according to claim 5, characterized in that: The activated carbon storage cavity (35) is located on top of the reinforcing support ring (13), and a bottom cover (14) is welded to the bottom of the inner cavity of the protective shell (31).
7. The detachable internal purification trench according to claim 6, characterized in that: The water outlet pipe (6) is located inside the bottom cover (14), and the bottom end of the water outlet pipe (6) is connected to a drain pipe.