Municipal engineering road drainage filtration system

Abstract

A municipal engineering road drainage and filtration system includes a drainage shaft, a drainage channel, and a slag collection well. The top of the drainage shaft connects to the road surface, and the bottom connects to the slag collection well. One end of the drainage channel is located on the inner wall of the drainage shaft, and the other end connects to a municipal stormwater pipe. Parallel filter screens and baffles are installed inside the drainage shaft, along with a drive mechanism that rotates the filter screens and baffles synchronously. The filter screens are positioned above the baffles. When the filter screens are horizontal, they intercept garbage; when rotating, they dislodge garbage. When the baffles are horizontal, they intercept rainwater and drain it into the drainage channel; when rotating, they allow garbage to slide off. The drive mechanism rotates the filter screens and baffles synchronously 180° and then stops. During rotation, garbage originally located on the upper surface of the filter screens is dislodged into the slag collection well. At this point, the lower surface of the filter screens faces upwards and continues to filter water, thus achieving the purpose of continuously filtering garbage from rainwater.

Description

Technical Field

[0001] This invention relates to the field of road drainage technology, and in particular to a municipal engineering road drainage filtration system. Background Technology

[0002] With social development and the improvement of people's living standards, the pace of urbanization is accelerating, traffic pressure is constantly increasing, and higher requirements are being placed on the quality of road construction. In municipal road construction, road drainage is receiving increasing attention. Urban drainage systems are engineering facilities that discharge urban rainwater and sewage. Since the quality of drainage engineering directly affects the effectiveness of road use later, it is one of the important factors that designers consider during municipal road construction.

[0003] Currently, urban drainage systems primarily rely on the extensive installation of storm drains and manholes along the road surface. Rainwater flows through these drains into the manholes and then into the municipal storm drain system. Road debris (such as plastic bags, branches, and leaves) easily follows the water flow through the drains into the manholes. This large influx of garbage into the municipal storm drain system causes two main problems: firstly, it leads to blockages, which are difficult and slow to clear, resulting in severe flooding; secondly, it increases the burden on the municipal stormwater purification system.

[0004] To filter debris from rainwater, existing technology involves installing filter screens in manholes. However, the surface of the filter screens loses its filtering capacity as it becomes covered with debris within a short period of time, thus lacking the ability to continuously filter debris from rainwater. Summary of the Invention

[0005] The purpose of this invention is to provide a municipal engineering road drainage filtration system, which aims to solve the problem that existing technologies using filter screens installed in manholes cannot continuously filter garbage from rainwater.

[0006] This invention provides a municipal engineering road drainage and filtration system, including a drainage shaft, a drainage channel, and a slag collection well. The top of the drainage shaft is connected to the road surface, and the bottom is connected to the slag collection well. One end of the drainage channel is located on the inner wall of the drainage shaft, and the other end is connected to a municipal rainwater pipe. The drainage shaft is equipped with parallel filter screens and water-blocking plates, as well as a drive mechanism that drives the filter screens and water-blocking plates to rotate synchronously. The filter screens are located above the water-blocking plates. When the filter screens are horizontal, they are used to intercept garbage; when the filter screens rotate, they are used to overturn garbage. When the water-blocking plates are horizontal, they are used to intercept rainwater and drain it into the drainage channel; when the water-blocking plates rotate, they are used to allow garbage to slide off.

[0007] Optionally, the slag collection well includes a slag discharge section and a drainage section. The connection between the slag discharge section and the drainage section is located at the bottom of the leaking vertical shaft. The slag discharge section is connected to the road surface, and the drainage section is connected to the municipal rainwater pipe. A garbage interception structure is installed in the drainage section.

[0008] Optionally, the waste interception structure includes multiple interception mesh panels distributed along the length of the drainage section.

[0009] Optionally, the intercepting mesh is used to remove the slag one by one through the slag discharge section.

[0010] Optionally, the intercepting mesh panel includes a top plate attached to the top wall of the drainage section, a bottom plate attached to the bottom wall of the drainage section, and a mesh panel fixed between the top plate and the bottom plate.

[0011] Optionally, each of the intercepting mesh panels is connected to a pull rope that extends to the top of the slag collection well.

[0012] Optionally, the slag discharge section includes an inclined section and a horizontal section, and the drainage section is coaxially connected to the horizontal section.

[0013] Optionally, the top wall of the inclined section, the bottom wall of the horizontal section, and the bottom wall of the drainage section are all embedded with ferromagnetic plates along the length of the well, and magnetic blocks are embedded on the upper surface of the top plate and the lower surface of the bottom plate.

[0014] Optionally, a fixed pulley is provided at the end of the drainage section away from the slag discharge section, and each of the intercepting mesh plates is connected to a second pull rope that passes around the fixed pulley, the second pull rope extending to the top of the slag collection well.

[0015] Optionally, the drive mechanism includes a drive shaft and a driven shaft. A worm gear is coaxially fixed on the drive shaft, and a worm wheel is coaxially fixed on the driven shaft. The worm wheel meshes with the worm gear, and the driven shaft is fixed on the rotation axis of the filter screen and the baffle plate.

[0016] The technical effects achieved by the present invention using the above technical solution are as follows: The horizontal filter screen intercepts garbage, and the filtered rainwater flows to the horizontal baffle plate. The baffle plate prevents water from flowing downwards into the sludge collection well, allowing water to flow only into the drainage channel and into the municipal stormwater pipe. The drive mechanism manually or automatically drives the filter screen and the baffle plate to rotate 180° synchronously and then stop. During the rotation, the garbage that was originally on the upper surface of the filter screen is flipped into the sludge collection well. At this time, the original lower surface of the filter screen faces upwards and continues to filter water. After a period of time, it rotates 180° again, and so on, thereby achieving the purpose of continuously filtering garbage in rainwater. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the municipal engineering road drainage and filtration system in the embodiment; Figure 2 for Figure 1 Enlarged view of section A.

[0018] Reference numerals: 1. Leaking vertical shaft; 1a. Long trench; 2. Drainage channel; 3. Slag collection well; 31. Slag discharge section; 311. Inclined section; 312. Horizontal section; 32. Drainage section; 4. Filter screen; 5. Water baffle; 6. Drive mechanism; 61. Drive shaft; 62. Driven shaft; 63. Worm gear; 64. Worm wheel; 7. Interception screen; 71. Top plate; 72. Bottom plate; 73. Screen plate; 8. Pull rope; 9. Ferromagnetic plate; 10. Magnetic block; 11. Fixed pulley; 12. Second pull rope; 13. Rain grate; 14. Bushing; 15. Motor; 16. Light transmitter; 17. Light receiver; 18. Sealing plate; 19. Lifting ring. Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that in this article, relational terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Example

[0021] This invention provides a municipal engineering road drainage filtration system, referring to... Figure 1 It includes a water leakage shaft 1, a drainage channel 2, a slag collection well 3, and a garbage interception structure installed in the slag collection well 3, as well as a drive mechanism 6, a filter screen 4, and a water baffle 5 installed in the water leakage shaft 1.

[0022] Reference Figure 1 The leakage shaft 1 is vertical, with its top connected to the road surface and covered by a rainwater grate 13, and its bottom connected to a slag collection well 3. Inside the leakage shaft 1, the filter screen 4 is higher than the baffle plate 5, and the filter screen 4 and the baffle plate 5 are always parallel. The filter screen 4 and the baffle plate 5 are initially horizontal. The edges of the filter screen 4 and the baffle plate 5 are in contact with the inner wall of the leakage shaft 1, and both the filter screen 4 and the baffle plate 5 can rotate around their own central axis. The edges of the filter screen 4 and the baffle plate 5 that are parallel to their own central axis are all rounded to prevent them from being stuck by the inner wall of the leakage shaft 1 during rotation.

[0023] Reference Figure 1 and Figure 2 The drive mechanism 6 consists of a drive shaft 61, a driven shaft 62, a worm gear 64, and a worm 63. The drive mechanism 6 drives the filter screen 4 and the baffle plate 5 to rotate synchronously. A vertical long groove 1a is provided on one side wall of the leakage shaft 1. Bushings 14 are fixed at the bottom and top of the long groove 1a as bearings. The drive shaft 61 is vertically inserted into the two bushings 14 at its upper and lower ends, allowing it to rotate around its own axis within the bushings 14. Two bushings 14 are embedded and fixed on the inner side wall of the leakage shaft 1 opposite to the long groove 1a, corresponding to the positions of the filter screen 4 and the baffle plate 5. Two horizontal driven shafts 62 are also fixed on the side wall of the long groove 1a, corresponding to the positions of the filter screen 4 and the baffle plate 5. Both ends of two horizontal driven shafts 62 are inserted into the bushings 14. Each driven shaft 62 has a worm gear 64 coaxially fixed at one end inserted into the long slot 1a. Two worm sections 63 are coaxially fixed on the drive shaft 61, and the two worm sections 63 mesh with the two worm gears 64 one-to-one.

[0024] Reference Figure 2 When the drive shaft 61 rotates, the worm 63 drives the worm wheel 64 and the driven shaft 62 to rotate, thereby causing the filter screen 4 and the baffle plate 5 to rotate synchronously. Since the worm wheel 64 and the worm 63 have a self-locking property after they are engaged, that is, the worm wheel 64 cannot drive the worm 63 to rotate, even if the garbage on both sides of the driven shaft 62 on the filter screen 4 is not evenly distributed, the filter screen 4 will not be pressed by the garbage to rotate. The filter screen 4 can only rotate under the drive of the drive shaft 61.

[0025] Reference Figure 2 The power source for rotating the drive shaft 61 can be manual or electric. When manual, a hole is made at the top of the long slot 1a to allow direct access to the road surface. The hole is located directly above the drive shaft 61. A tool can be inserted into the hole on the road surface to connect with the drive shaft 61, and rotating the tool drives the drive shaft 61 to rotate. One specific connection method between the tool and the drive shaft 61 is as follows: the tool is a T-wrench with a hexagonal prism-shaped bottom end, and the top of the drive shaft 61 has a hexagonal groove. When the bottom end of the T-wrench is inserted into the hexagonal groove, the rotation of the drive shaft 61 can be controlled. When electric, a motor 15 is fixed to the top or side wall of the long slot 1a. The rotating shaft of the motor 15 drives the drive shaft 61 to rotate via a pair of gears.

[0026] Reference Figure 2When using motor 15, it can be used in conjunction with sensors and controllers to enable motor 15 to start automatically when it rains and drive the filter screen 4 and water baffle 5 to rotate synchronously. The sensors are light emitters 16 and light receivers 17 connected to the controller, which are embedded on the inner walls of opposite sides of the leakage shaft 1, and located 2cm above the horizontal filter screen 4. The controller is set with a corresponding program to start motor 15 when the light receiver 17 does not receive light emitted by the light emitter 16 for 5 seconds, and a corresponding program to turn off motor 15 when the driven shaft 62 rotates 180°. The controller also sets the speed of motor 15 so that the time for the driven shaft 62 to rotate 180° is 5-10 seconds, so as to avoid the filter screen 4 rotating too fast and causing the garbage to not fall off completely, and also to avoid the filter screen 4 rotating too slowly and causing a large amount of rainwater to flood the slag collection well 3.

[0027] Reference Figure 2 When the garbage on the filter screen 4 reaches a height of 2cm, the garbage blocks the light receiver 17 from receiving the light signal for 5 seconds, and the controller starts the motor 15. When the driven shaft 62 rotates 180°, the lower surface of the filter screen 4 faces upward and continues to work normally. At this time, the motor 15 should be turned off, and the motor 15 should be started again when the garbage blocks the light receiver 17 from receiving the light signal for another 5 seconds. The long trough 1a is closed with a sealing plate 18, which is flush with the inner wall of the drainage shaft 1. The sealing plate 18 isolates the drive mechanism 6 from rainwater and garbage. The sealing plate 18 has holes for the driven shaft 62 to extend out and holes for the light emitter 16 to emit light.

[0028] Reference Figure 1 On the inner wall of the leaking shaft 1, there is a drain outlet, which serves as the inlet for the drainage channel 2. The other end of the drainage channel 2 is connected to the municipal stormwater pipe. The drainage channel 2 can be a horizontal pipe or a pipe with a drop. When the drainage channel 2 is a pipe with a drop, the connection between the drainage channel 2 and the leaking shaft 1 must be higher than the connection between the drainage channel 2 and the municipal stormwater pipe.

[0029] Reference Figure 1 The horizontal filter screen 4 intercepts garbage, and the filtered rainwater falls onto the horizontal baffle 5. The horizontal baffle 5 prevents water from flowing downward into the slag collection well 3, so that the water can only flow into the drainage channel 2 and be discharged into the municipal rainwater pipe. The drive mechanism 6 manually or automatically drives the filter screen 4 and the baffle 5 to rotate synchronously by 180° and then stop. During the rotation, the garbage that was originally located on the upper surface of the filter screen 4 is turned over and falls into the slag collection well 3. At this time, the original lower surface of the filter screen 4 faces upward and continues to filter water. After a period of time, it rotates 180° again, and so on, so as to achieve the purpose of continuously filtering garbage in rainwater.

[0030] Reference Figure 1In addition to collecting garbage falling from the leaking shaft 1, the slag collection well 3 can also filter the small amount of rainwater flowing down from the leaking shaft 1 when the filter screen 4 flips over, and then discharge it into the municipal rainwater pipe after being filtered by the garbage interception structure.

[0031] Reference Figure 1 The opening of the slag collection well 3 can be covered with either a manhole cover or a rain grate. The manhole cover has no drainage holes, so it only serves to seal the opening; the rain grate allows the slag collection well 3 to assist the leaking vertical well 1 in draining water during the rainy season, thereby speeding up the drainage process.

[0032] Reference Figure 1 The slag collection well 3 consists of a slag discharge section 31 and a drainage section 32. The connection between the slag discharge section 31 and the drainage section 32 is located at the bottom of the leaking vertical well 1. The top of the slag discharge section 31 is connected to the road surface, and the end of the drainage section 32 away from the leaking vertical well 1 is connected to the municipal rainwater pipe. The slag discharge section 31 consists of an inclined part 311 and a horizontal part 312, and the drainage section 32 is coaxially connected to the horizontal part 312.

[0033] Reference Figure 1 The waste interception structure is located within the drainage section 32 and consists of multiple interception mesh panels 7 distributed along the length of the drainage section 32. Each interception mesh panel 7 comprises a top plate 71, a bottom plate 72, and a mesh panel 73. The top plate 71 is attached to the top wall of the drainage section 32, the bottom plate 72 is attached to the bottom wall of the drainage section 32, and the mesh panel 73 is vertically fixed between the top plate 71 and the bottom plate 72. Each interception mesh panel 7 is connected to a pull rope 8, which extends to the top of the slag collection well 3. This allows personnel to pull all the interception mesh panels 7 one by one through the slag discharge section 31 from the well opening on the road surface using the pull rope 8. Only one interception mesh panel 7 is pulled out at a time. One purpose of pulling out the interception mesh panels 7 is to prevent the interception structure from being unable to filter rainwater if the surface of the interception mesh panels 7 is covered with waste. Another purpose is to pull out the accumulated waste when the interception mesh panels 7 pass through the slag discharge section 31.

[0034] Reference Figure 1 Fix a lifting ring 19 on the inner wall of the slag collection well 3 near the road surface, and tie all the pull ropes 8 to the lifting ring 19. Since the intercepting mesh plate 7 must be on the outermost side each time it is pulled out, the corresponding pull ropes 8 need to be pulled in sequence. Therefore, the intercepting mesh plate 7 corresponding to each pull rope 8 must be identifiable. A label or mark can be fixed on each pull rope 8, or different colored pull ropes 8 can be used for identification.

[0035] Reference Figure 1When the intercepting mesh plate 7 is pulled out with the pull rope 8, if the intercepting mesh plate 7 is tilted, that is, the top plate 71 cannot be kept in contact with the top wall of the slag collection well 3 or the bottom plate 72 cannot be kept in contact with the bottom wall of the slag collection well 3, the intercepting mesh plate 7 cannot efficiently pull out the garbage accumulated in the slag discharge section 31. To solve this problem, the following structure is set: the top wall of the inclined part 311, the bottom wall of the horizontal part 312, and the bottom wall of the drainage section 32 are all embedded with ferromagnetic plates 9 along the length of the well, and magnetic blocks 10 are embedded on the upper surface of the top plate 71 and the lower surface of the bottom plate 72. Due to the attraction of the ferromagnetic plate 9 to the magnetic block 10, when the rope 8 pulls the intercepting net plate 7 towards the road surface, the bottom plate 72 of the intercepting net plate 7 first moves against the bottom wall of the drainage section 32 and the bottom wall of the horizontal section 312; when the intercepting net plate 7 is about to enter the inclined section 311, the bottom plate 72 is pulled to separate from the bottom wall of the horizontal section 312, and the top plate 71 is attracted by the ferromagnetic plate 9 to stick to the top wall of the inclined section 311. Continuing to pull can make the top plate 71 move towards the road surface along the top wall of the inclined section 311. Figure 1 The dotted line in the middle shows the position and posture of the interception net panel 7 during the pulling process.

[0036] Reference Figure 1 Since the perimeter of the intercepting mesh plate 7 is fitted with the inner wall of the slag collection well 3, the pull rope 8 on the outermost intercepting mesh plate 7 can be pulled directly to the wellhead, while the pull ropes 8 on the inner intercepting mesh plates 7 can only pass through the mesh on the outermost intercepting mesh plate 7.

[0037] Reference Figure 1 If it is not raining and the inner diameter of the slag collection well 3 is large enough, personnel can go down into the well to install the intercepting mesh panels 7; alternatively, a fixed pulley 11 can be installed at the end of the drainage section 32 away from the slag discharge section 31, and a second pull rope 12 can be connected to each intercepting mesh panel 7. After all the second pull ropes 12 are passed around the fixed pulley 11, they can be pulled to the wellhead of the slag collection well 3, so that the intercepting mesh panels 7 can be installed in the drainage section 32 by pulling the second pull ropes 12 on the road surface.

[0038] Reference Figure 1 The method for arranging the intercepting mesh plate 7 using the second pull rope 12 and the fixed pulley 11 is as follows: At the wellhead of the slag collection well 3, the top plate 71 of one intercepting mesh plate 7 is attached to the top wall of the inclined part 311, and then the second pull rope 12 is used to pull the intercepting mesh plate 7 into the horizontal part 312. The bottom plate 72 of the intercepting mesh plate 7 is automatically attached to the bottom wall of the horizontal part 312. Continue to pull the intercepting mesh plate 7 to the deepest part of the slag collection well 3. Then, at the wellhead of the slag collection well 3, the top plate 71 of the second intercepting mesh plate 7 is attached to the top wall of the inclined part 311. Pull the second pull rope 12 corresponding to the second intercepting mesh plate 7, and arrange the second intercepting mesh plate 7 in the slag collection well 3 in the same way as the first intercepting mesh plate 7. Continue in this manner until all the intercepting mesh plates 7 are arranged.

[0039] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A municipal engineering road drainage filtration system, characterized in that, The system includes a drainage shaft (1), a drainage channel (2), and a slag collection well (3). The top of the drainage shaft (1) is connected to the road surface, and the bottom is connected to the slag collection well (3). One end of the drainage channel (2) is located on the inner wall of the drainage shaft (1), and the other end is connected to the municipal rainwater pipe. The drainage shaft (1) is equipped with parallel filter screens (4) and baffles (5), as well as a drive mechanism (6) that drives the filter screens (4) and the baffles (5) to rotate synchronously. The filter screens (4) are located above the baffles (5). When the filter screens (4) are horizontal, they are used to intercept garbage. When the filter screens (4) are rotating, they are used to overturn garbage. When the baffles (5) are horizontal, they are used to intercept rainwater and drain it to the drainage channel (2). When the baffles (5) are rotating, they are used to slide garbage off. The slag collection well (3) includes a slag discharge section (31) and a drainage section (32). The connection between the slag discharge section (31) and the drainage section (32) is located at the bottom of the leaking vertical well (1). The slag discharge section (31) is connected to the road surface, and the drainage section (32) is connected to the municipal rainwater pipe. A garbage interception structure is installed in the drainage section (32). The garbage interception structure includes multiple interception net plates (7) distributed along the length of the drainage section (32). The interception net plates (7) are used to remove the garbage one by one through the slag discharge section (31). The intercepting mesh plate (7) includes a top plate (71) attached to the top wall of the drainage section (32), a bottom plate (72) attached to the bottom wall of the drainage section (32), and a mesh plate (73) fixed between the top plate (71) and the bottom plate (72); each of the intercepting mesh plates (7) is connected to a pull rope (8), which extends to the top of the slag collection well (3); The slag discharge section (31) includes an inclined section (311) and a horizontal section (312). The drainage section (32) is coaxially connected with the horizontal section (312). Ferromagnetic plates (9) are embedded along the length of the well on the top wall of the inclined section (311), the bottom wall of the horizontal section (312), and the bottom wall of the drainage section (32). Magnetic blocks (10) are embedded on the upper surface of the top plate (71) and the lower surface of the bottom plate (72).

2. The municipal engineering road drainage filtration system as described in claim 1, characterized in that, The drainage section (32) is provided with a fixed pulley (11) at one end away from the slag discharge section (31), and each of the interception net plates (7) is connected to a second pull rope (12) that passes around the fixed pulley (11). The second pull rope (12) extends to the top of the slag collection well (3).

3. The municipal engineering road drainage filtration system as described in any one of claims 1-2, characterized in that, The drive mechanism (6) includes a drive shaft (61) and a driven shaft (62). A worm gear (63) is coaxially fixed on the drive shaft (61), and a worm wheel (64) is coaxially fixed on the driven shaft (62). The worm wheel (64) meshes with the worm gear (63), and the driven shaft (62) is fixed on the rotation axis of the filter screen (4) and the baffle plate (5).

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