A road drainage structure applicable to industrial parks and residential communities

Abstract

A road drainage structure for industrial parks and residential areas, comprising a road body, the upper surface of the road body having a motor vehicle lane, the road body being internally provided with a first drainage ditch, a second drainage ditch and a water passing groove, the first end of the water passing groove being in communication with the first drainage ditch, the last end of the water passing groove being in communication with the second drainage ditch, the upper part of the first drainage ditch and the second drainage ditch each having a plurality of openings, the opening of the first drainage ditch being provided with a grating, the grating having grating holes, the opening of the second drainage ditch being provided with a manhole cover, the manhole cover being provided with a plurality of first water filtering holes, the end of the water passing groove or the inside of the water passing groove being provided with a filter plate, the filter plate being provided with a plurality of second water filtering holes, the size of the first water filtering holes and the second water filtering holes being smaller than the size of the grating holes. The structure can quickly drain the rainwater and sewage on the road, and has a faster drainage efficiency in ordinary rain weather and extreme rain weather.

Description

Technical Field

[0001] This invention relates to the field of road drainage technology, and in particular to a road drainage structure that can be used in industrial parks and residential communities. Background Technology

[0002] Currently, the existing road drainage system in industrial parks and residential areas involves excavating drainage ditches within the roads, which connect to the municipal drainage system. Curbs are installed on both sides of the road, with drainage outlets on the roadside facing the road. These outlets connect to the drainage ditches and are fitted with grates. During rainy weather, water from the roads flows to the drainage outlets, where it is filtered by the grates to remove large debris before being discharged into the drainage ditches and finally into rivers, oceans, or other bodies of water via the municipal drainage system.

[0003] This type of road drainage structure has the following problems: First, when rainfall is heavy, water accumulating on the sidewalks along the roadside cannot be quickly drained into the drainage ditches. Second, because the grates have large pores, they can only filter out large debris, so small debris, such as plant material, gravel, and various types of garbage, still enters the drainage ditches with the rainwater and cannot be filtered by the grates. This debris then settles at the bottom of the drainage ditches. In southern my country, due to abundant rainfall, small debris accumulates in the drainage ditches very quickly, leading to a significant reduction in the cross-sectional area of ​​the ditches and a substantial decrease in drainage efficiency. This easily causes flooding during heavy rains. Furthermore, the dredging process of the drainage ditches can also affect their normal drainage function. Summary of the Invention

[0004] Therefore, the purpose of this invention is to provide a road drainage structure that is beneficial to improving road drainage efficiency and can be used in industrial parks and residential communities.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows:

[0006] A road drainage structure applicable to industrial parks and residential areas includes a road body with a motor vehicle lane on its upper surface. The road body contains a first drainage ditch, a second drainage ditch, and a water-passing channel. The first end of the water-passing channel is connected to the first drainage ditch, and the last end is connected to the second drainage ditch. Both the first and second drainage ditches have multiple openings at their upper parts. A grating with perforations is installed at the opening of the first drainage ditch. A manhole cover with multiple first filter holes is installed at the opening of the second drainage ditch. A filter plate with multiple second filter holes is installed at the port of the water-passing channel or inside the channel. The size of both the first and second filter holes is smaller than the size of the grating holes.

[0007] In a preferred embodiment of the present invention, the upper surface of the road body has a sidewalk that is higher than the motor vehicle lane, a curbstone is provided between the motor vehicle lane and the sidewalk, the grille is located on the edge of the motor vehicle lane near the curbstone, a water collection trough is provided on the edge of the sidewalk near the curbstone, and a plurality of water guiding notches are provided at intervals on the upper surface of the curbstone, each water guiding notch corresponding to a grille.

[0008] In a preferred embodiment of the present invention, the filter plate is located at the port of the first end of the water trough and is inclined toward the side where the first drainage ditch is located, and the road body is provided with a filter residue removal device capable of removing filter residue from the filter plate.

[0009] In a preferred embodiment of the present invention, a filter plate frame is fixed at the port of the first end of the water passage trough, the lower end of the filter plate is hinged to the filter plate frame, the filter plate is connected to a first elastic element, the elastic force applied by the first elastic element to the filter plate causes the upper end of the filter plate to abut against the inner wall of the first drainage ditch, a vertical hole is provided between the top wall of the water passage trough and the upper surface of the road body, an embedded tube is fixed in the vertical hole, the filter residue removal device includes a top pressure plate and a movable push rod, the first end of the top pressure plate is hinged to the embedded tube or the road body, the movable push rod is movably installed in the embedded tube, the upper end of the movable push rod is higher than the upper surface of the road body, a second elastic element is provided in the embedded tube that can drive the movable push rod to return to its original position when it is pressed down, a transmission structure is provided between the movable push rod and the top pressure plate, when the movable push rod moves downward, the top pressure plate rotates in the forward direction, when the top pressure plate rotates in the forward direction, its end presses against the filter plate to separate the upper end of the filter plate from the inner wall of the first drainage ditch.

[0010] In a preferred embodiment of the present invention, the transmission structure includes a first rotating block hinged within the inner tube and located below the movable push rod, a first connecting rod connecting the movable push rod and the first rotating block, and a second connecting rod connecting the first rotating block and the top pressure plate.

[0011] In a preferred embodiment of the present invention, the upper end of the embedded tube is provided with a cover plate, the cover plate is provided with a through hole to avoid the movable push rod, and the upper surface of the cover plate is provided with a flexible cover to shield the through hole and the upper end of the movable push rod.

[0012] In a preferred embodiment of the present invention, the filter residue removal device includes a frame fixed in the first drainage ditch, a cleaning frame mounted on the frame, a cleaning brush disposed on the cleaning frame, and a residue removal power device capable of driving the cleaning brush to reciprocate to clean the filter plate.

[0013] In a preferred embodiment of the present invention, the cleaning rack is movably mounted on a frame, and the frame is provided with a retraction power device capable of driving the cleaning rack to move upward to a retracted state.

[0014] In a preferred embodiment of the present invention, the frame is provided with a sliding frame and a guide structure parallel to the filter plate. The retraction and extension power device includes a retraction and extension driver capable of driving the sliding frame to slide along the guide structure. The sliding frame and the cleaning frame are connected by a plurality of third links. The frame is provided with a guide groove and a guide post. The guide post has a guide surface parallel to the guide structure. The cleaning frame is provided with a roller located at the lower end of the guide groove. When the sliding frame slides upward along the guide structure, the roller on the cleaning frame moves out from the upper end of the guide groove and then moves upward along the guide surface to move the cleaning frame to the retracted state.

[0015] In a preferred embodiment of the present invention, the third link is divided into two columns, and the number of third links in each column is at least two.

[0016] In a preferred embodiment of the present invention, the bottom surface of the water guiding notch is lower than the bottom surface of the water collection trough, and a plurality of transverse water guiding troughs are provided at intervals on the sidewalk, with the ends of all transverse water guiding troughs communicating with the water collection trough.

[0017] The beneficial effects of this invention are: the drainage structure is highly effective in draining sewage from roads, especially during heavy rain. Under normal circumstances, rainwater on the sidewalk first collects in a collection trough; then, the rainwater in the collection trough flows through the drainage openings on the curbstone to the locations of the various grates, directly falling into the first drainage ditch, preventing the rainwater from flowing to other parts of the roadway and causing excessive water accumulation. Rainwater on the roadway mainly falls into the first drainage ditch through the grates, and can also fall into the second drainage ditch through the first filter holes on the manhole cover. Because the grates in the first drainage ditch have larger pores, they can achieve the same drainage effect as conventional drainage ditches. When the rainfall intensity is high, such as heavy rain or torrential rain, some rainwater in the first drainage ditch can enter the second drainage ditch through a trough. At this time, both drainage ditches drain water simultaneously, helping to improve drainage efficiency. Due to the filtering effect of the manhole cover and filter plate, the siltation rate in the second drainage ditch is much lower than in the first drainage ditch. When the rainfall is extremely heavy, the manhole cover on the second drainage ditch can be opened, allowing the less silted second drainage ditch to act as the main drainage source, further improving drainage efficiency. Furthermore, during the dredging work in the first drainage ditch, the second drainage ditch can still function normally and will not suffer from insufficient drainage efficiency due to the construction. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0020] Figure 3 This is a schematic diagram of part of the structure of Embodiment 2 when the movable push rod is not pressed down;

[0021] Figure 4 This is a schematic diagram of part of the structure of Embodiment 2 when the movable push rod is pressed down;

[0022] Figure 5 yes Figure 4 Enlarged view of section A;

[0023] Figure 6 yes Figure 4 Enlarged view of section B;

[0024] Figure 7 This is a schematic diagram of the connection structure between the filter plate and the filter plate frame in Example 2;

[0025] Figure 8 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0026] Figure 9 This is a diagram showing the positional relationship between the filter brush mechanism and the filter plate in the first state in Example 3.

[0027] Figure 10 This is a diagram showing the positional relationship between the filter cake brush mechanism and the filter plate when the filter cake brush mechanism is in the second state.

[0028] Figure 11 A 3D view of the filter brush mechanism;

[0029] Figure 12 This is an exploded view of the filter brush mechanism. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described in conjunction with the accompanying drawings.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in this invention are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. Furthermore, descriptions involving "preferred," "second-best," etc., in this invention are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "preferred" or "second-best" may explicitly or implicitly include at least one of those features.

[0032] Example 1

[0033] Reference Figure 1 This embodiment discloses a road drainage structure applicable to industrial parks and residential areas, including a road body 1. The upper surface of the road body 1 has a motor vehicle lane 101 and a sidewalk 102 higher than the motor vehicle lane 101. A curbstone 8 is provided between the motor vehicle lane 101 and the sidewalk 102. The road body 1 is characterized by having a first drainage ditch 11, a second drainage ditch 12, and a water channel 13 inside. The first end of the water channel 13 is connected to the first drainage ditch 11, and the last end of the water channel 13 is connected to the second drainage ditch 12. The upper parts of the first drainage ditch 11 and the second drainage ditch are... The system has multiple openings. A grating 2 with grating holes 21 is installed at the opening of the first drainage ditch 11. The grating is located on the edge of the motor vehicle lane 101 near the curbstone 8. A manhole cover 3 with multiple first filter holes 31 is installed at the opening of the second drainage ditch 12. A filter plate 4 with multiple second filter holes 41 is installed at the port of the water channel 13 or inside the water channel 13. The dimensions of the first and second filter holes 31 and 41 (i.e., the cross-sectional area of ​​the two types of filter holes) are smaller than the dimensions of the grating holes 21 (i.e., the cross-sectional area of ​​the grating holes 21). The first and second filter holes 31 are generally round holes, but can also be square holes or other types of holes. The first filter holes 31 are arranged in an array on the manhole cover 3, and the second filter holes 41 are also arranged in an array on the filter plate 4. The grille hole 21 is generally a long rectangular hole. The size of the grille hole 21 can be 24*100mm, 20*100mm, etc. Correspondingly, the diameter of the first filter hole 31 and the second filter hole 41 can be set to 10mm, 8mm, 6mm, etc.

[0034] A water collection trough 103 is provided on one side edge of the sidewalk 102 near the curbstone 8. The upper surface of the curbstone 8 is higher than the bottom surface of the water collection trough 103. Multiple water guiding gaps 81 are provided at intervals on the upper surface of the curbstone 8. The bottom surface of the water guiding gap 81 is lower than the bottom surface of the water collection trough 103 or the bottom surfaces of the two are at the same height. Each water guiding gap 81 corresponds to a grid 2. The outlet of the water guiding gap 81 is located above the corresponding grid 2.

[0035] Manhole cover 3 is generally located in the middle of the motor vehicle lane 101, or on the edge of the motor vehicle lane 101 away from the curb stone 8.

[0036] Sidewalk 102 can be a cement base with an asphalt surface; the small grooves in the asphalt surface can improve drainage efficiency. The curbstone 8 can be a reinforced concrete structure or made of natural marble, granite, or other stones.

[0037] The motor vehicle lane 101 is generally a two-way two-lane or two-way four-lane road with an overall width of approximately 7-30 meters; it is an asphalt or cement road surface. The sidewalk 102 is generally 1-3 meters wide, and the drainage ditch 103 is generally 70-150 mm wide and 20-30 mm deep.

[0038] The first drainage ditch 11 and the second drainage ditch 12 are parallel to each other, and both can independently discharge rainwater into the municipal drainage system, ultimately into rivers, oceans, and other water bodies. The drainage principle of this drainage structure is as follows: Under normal circumstances, rainwater on the sidewalk 102 first collects in the collection trough 103; then, the rainwater in the collection trough 103 flows through the water guide gaps 81 on the curbstone 8 to the locations of the various grids, and can directly fall into the first drainage ditch 11 through the grids 2, preventing the rainwater from flowing to other parts of the motor vehicle lane 101 and causing a large amount of water accumulation on the motor vehicle lane 101. Rainwater on the motor vehicle lane 101 mainly falls into the first drainage ditch 11 through the grids 2, and can also fall into the second drainage ditch 12 through the first filter holes 31 on the manhole cover 3. Because the pores of the grids 2 on the first drainage ditch 11 are relatively large, they can achieve the same drainage function as conventional drainage ditches. When rainfall is heavy, such as in torrential rain or downpours, some of the rainwater in the first drainage ditch 11 can flow into the second drainage ditch 12 through the trough 13. At this time, both drainage ditches drain water simultaneously, which helps improve drainage efficiency. Due to the filtering effect of the manhole cover 3 and the filter plate 4, the rate of siltation in the second drainage ditch 12 is much lower than in the first drainage ditch 11. In cases of extremely heavy rainfall, the manhole cover 3 on the second drainage ditch 12 can be opened, allowing the less silted ditch 12 to act as the main drainage source, further improving drainage efficiency. Furthermore, during dredging work in the first drainage ditch 11, the second drainage ditch 12 can continue to drain water normally without experiencing insufficient drainage efficiency due to the dredging work.

[0039] Example 2

[0040] Figures 2 to 7 Embodiment 2 of this embodiment is disclosed. This embodiment has a similar structure to Embodiment 1, but differs from Embodiment 1 in the following two aspects:

[0041] One difference is that in this embodiment, multiple transverse drainage channels 104 are spaced apart on the sidewalk 102. The ends of all transverse drainage channels 104 are connected to the water collection trough 103, and each transverse drainage channel 104 is perpendicular to the water collection trough 103. The width of the transverse drainage channels 104 is smaller than the width of the water collection trough 103. The arrangement of the transverse drainage channels 104 further improves the drainage efficiency on the sidewalk 102.

[0042] Difference 2: This embodiment adds a filter residue removal device that can remove filter residue from the filter plate 4, based on embodiment 1.

[0043] In this embodiment, the filter plate 4 is located at the port of the first end of the water tank 13 and is inclined toward the side where the first drainage ditch 11 is located. The angle between the filter plate 4 and the horizontal plane can be 55 degrees, 60 degrees, 70 degrees, etc.

[0044] In a preferred embodiment, a filter plate frame 51 is fixed at the port of the first end of the water trough 13. The lower end of the filter plate 4 is hinged to the filter plate frame 51. The filter plate 4 is connected to a first elastic member 52. The elastic force applied by the first elastic member 52 to the filter plate 4 causes the upper end of the filter plate 4 to abut against the inner wall of the first drainage ditch 11. A vertical hole 14 is provided between the top wall of the water trough 13 and the upper surface of the road body 1. An embedded tube 16 is fixed in the vertical hole 14. The filter residue removal device includes a top pressure plate 61 and a movable push rod 62. The first end of the top pressure plate 61 is connected to the embedded tube 16. 6 or the road body 1 is hinged, and the movable push rod 62 is installed in the inner tube 16 so as to move up and down. The upper end of the movable push rod 62 is higher than the upper surface of the road body 1. The inner tube 16 is provided with a second elastic element 63 that can drive the movable push rod 62 to return to its original position after it is pressed down. A transmission structure is provided between the movable push rod 62 and the top pressure plate 61. When the movable push rod 62 moves down, it causes the top pressure plate 61 to rotate in the forward direction. When the top pressure plate 61 rotates in the forward direction, its end presses against the filter plate 4 so that the upper end of the filter plate 4 is separated from the inner wall of the first drainage ditch 11.

[0045] In the above scheme, the transmission structure includes a first rotating block 64 hinged within the inner tube 16 and located below the movable push rod 62, a first connecting rod 65 connecting the movable push rod 62 and the first rotating block 64, and a second connecting rod 66 connecting the first rotating block 64 and the top pressure plate 61. The first connecting rod 65 is hinged to the movable push rod 62, the first connecting rod 65 is hinged to the first rotating block 64, and the second connecting rod 66 is hinged to the first rotating block 64. The lower end of the second connecting rod 66 is hinged to the middle of the top pressure plate 61, which amplifies the stroke. A horizontal plate 67 is fixed inside the inner tube 16. A guide hole 671 is provided on the horizontal plate 67. The movable push rod 62 passes through the guide hole 671 and slides with the horizontal plate 67. A limiting platform 621 is provided on the movable push rod 62 located above the horizontal plate 67. The second elastic element 63 is a compression spring provided between the horizontal plate 67 and the limiting platform 621. The upper part of the filter plate frame 51 is provided with a spring mounting groove 511, and the first elastic element 52 is a compression spring provided in the spring mounting groove 511, with the end of the compression spring abutting against the filter plate 4. In order to further improve the smoothness of the up and down movement of the movable push rod 62, the guide hole on the horizontal plate 67 can be changed into a guide sleeve mounting hole, and a linear bearing for guiding the movable push rod 62 can be installed in the guide sleeve mounting hole.

[0046] In the above scheme, the lower end of the filter plate 4 is higher than the bottom of the first drainage ditch 11. The working principle for cleaning the filter residue on the filter plate 4 is as follows: When the car passes over the area above the movable push rod 62, it will press down the movable push rod 62. At this time, the second elastic element 63 is compressed. Then, during the downward movement of the first push rod, it will drive the first rotating block 64 to rotate through the first connecting rod 65, and then drive the top pressure plate 61 to rotate counterclockwise downward through the second connecting rod 66. (Refer to...) Figure 3 and Figure 5 When the top pressure plate 61 rotates downwards, it squeezes the filter plate 4, causing the filter plate 4 to rotate counterclockwise to the open state. At this time, the first elastic element 52 is compressed. After the car passes, the movable push rod 62 returns to its original position under the elastic force of the second elastic element 63, driving the top pressure plate 61 to rotate clockwise upwards to the reset state. Then, under the elastic force of the first elastic element 52, the filter plate 4 is driven to rotate clockwise to the reset state. During this process, the upper end of the filter plate 4 will hit the inner wall of the first drainage ditch 11, thereby shaking the filter residue on the filter plate 4 to the bottom of the first drainage ditch 11, thus achieving the cleaning effect. The filter plate 4 is preferably made of high-strength materials such as fiberglass or alloy steel, which can withstand impact for a long time.

[0047] In the above scheme, the elastic coefficient of the second elastic element 63 is greater than that of the first elastic element 52. Generally, the elastic coefficient of the second elastic element 63 is designed to be 3-10 times that of the first elastic element 52, so that the movable push rod 62, the first connecting rod 65, the second connecting rod 66, the first rotating block 64, and the top pressure plate 61 are mainly driven to reset by the elastic force of the second elastic element 63. Moreover, the reset speed of the top pressure plate 61 is greater than that of the filter plate 4. When the upper end of the filter plate 4 hits the inner wall of the first drainage ditch 11, it will not be subject to resistance from the top pressure plate 61. This scheme also has the following advantages: Since the first elastic element 52 is only used for the reset of the filter plate 4, it is easy to conduct experiments during the early stage of construction verification to select a compression spring with a suitable elastic coefficient as the first elastic element 52. In addition, during the process of the movable push rod 62 being pressed down by the car, the elastic resistance of the second elastic element 63 can limit the speed of the top pressure plate 61. When the top pressure plate 61 presses against the filter plate 4, the first elastic element 52 can also play a buffering role, absorbing part of the impact force.

[0048] In some embodiments of this invention, the transmission structure described above may also take other structural forms, such as omitting the second connecting rod 66 and the first rotating block 64, lengthening the first connecting rod 65, and directly hinged the lower end of the first connecting rod 65 to the middle of the top pressure plate 61.

[0049] Furthermore, a cover plate 68 is provided at the upper end of the embedded tube 16. The cover plate 68 has a through hole to avoid the movable push rod 62, and a flexible cover 69 is provided on the upper surface of the cover plate 68 to shield the through hole and the upper end of the movable push rod 62. The flexible cover 69 is made of high-strength rubber, high-strength nylon cloth, or other materials. It can be an elastic structure or a high-strength fabric sheet that can be plastically deformed. Used in conjunction with the cover plate 68, it can prevent external dust, sand, and garbage from falling into the vertical hole 14. When the movable push rod 62 is in the raised state, its upper end supports the middle of the lower surface of the flexible cover. The highest point of the upper surface of the flexible cover protrudes above the upper surface of the road body, for example, 2-3 cm higher than the road surface. When the movable push rod 62 is pressed down, the upper surface of the flexible cover is flush with the road surface. For roads with little traffic, the top pressure plate 61 can also be rotated by having workers step on the upper end of the movable push rod 62. In this case, the second elastic element 63 should be a compression spring with a lower elastic coefficient.

[0050] Example 3

[0051] Figures 8 to 12 Embodiment 3 of this embodiment is disclosed. This embodiment has a similar structure to Embodiment 2. The difference is that the filter residue removal device in this embodiment is more complex and has more functions than the filter residue removal device in Embodiment 2.

[0052] In this embodiment, in addition to the structure disclosed in Embodiment 2, the filter residue removal device also includes a filter residue brush mechanism. The filter residue brush mechanism includes a frame 71 fixed in the first drainage ditch 11, a cleaning frame 72 mounted on the frame 71, a cleaning brush 73 disposed on the cleaning frame 72, and a residue removal power device capable of driving the cleaning brush 73 to reciprocate to clean the filter plate 4.

[0053] The bristles of the cleaning brush 73 are preferably made of metal wire, with the free ends of the bristles abutting against the side of the filter plate 4 facing the first drainage ditch 11. The slag removal power unit can use a motor 741 as the power source. The output end of this motor can be connected to a pulley and belt structure or a chain and sprocket mechanism. The cleaning brush 73 is mounted on the corresponding belt 742 or chain, and the cleaning brush 73 is driven to reciprocate by controlling the forward and reverse rotation of the motor 741. Generally, only a few to a dozen brushings are needed to clean the filter plate 4. Alternatively, the slag removal power unit can also use an electric cylinder as the power source to drive the cleaning brush 73 to reciprocate.

[0054] The cleaning rack 72 is movably mounted on the frame 71, and the frame 71 is equipped with a retraction and extension power device that can drive the cleaning rack 72 to move upward to the retracted state.

[0055] As a further optimization of the above solution, the frame 71 is provided with a sliding frame 75 and a guide structure parallel to the filter plate 4. The retraction and extension power device includes a retraction and extension driver 76 that can drive the sliding frame 75 to slide along the guide structure. The sliding frame 75 and the cleaning frame 72 are connected by multiple third links 77. The frame 71 is provided with a guide groove 711 and a guide post 712. The guide post 712 has a guide surface 7121 parallel to the guide structure. The guide groove 711 and the guide surface 7121 form an acute angle. The cleaning frame 72 is provided with a roller 78 located at the lower end of the guide groove 711.

[0056] Preferably, the third link 77 is divided into two rows, with two or three third links 77 in each row. The distance between the two hinge points on all third links 77 is basically the same, and all third links 77 are parallel. When the roller 78 on the cleaning frame 72 is located at the lower end of the guide groove 711, the bristles of the cleaning brush 73 abut against one side surface of the filter plate 4. At this time, the cleaning brush 73 is driven to reciprocate by the slag removal power device to remove the filter slag on the filter plate 4. The retraction drive 76 is preferably an electric cylinder. When the cleaning frame 72 needs to be retracted, the retraction drive 76 drives the sliding frame 75 to slide upward along the guide structure. Then, the roller 78 on the cleaning frame 72 moves upward along the guide groove 711. After moving out from the upper end of the guide groove 711, it moves upward along the guide surface 7121, and finally the cleaning frame 72 moves to the retracted state. After the cleaning frame 72 is retracted, it is convenient for the staff to clean and replace the cleaning brush 73, and also convenient to clean the filter plate frame 51.

[0057] This road drainage structure is generally used in industrial parks and residential areas. For some municipal roads with high drainage requirements, the drainage structure can also be designed with reference to this road drainage structure.

[0058] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct or indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A road drainage structure that can be used in an industrial park or residential area, comprising a road body (1), the upper surface of the road body (1) having a motor vehicle lane (101), characterized in that, The road body (1) is internally provided with a first drainage ditch (11), a second drainage ditch (12) and a water passing groove (13), the water passing groove (13) is in communication with the first drainage ditch (11) at the first end, the water passing groove (13) is in communication with the second drainage ditch (12) at the second end, the upper part of the first drainage ditch (11) and the second drainage ditch is provided with a plurality of openings, the first drainage ditch (11) is provided with a grille (2) at the opening, the grille (2) is provided with a grille hole (21), the second drainage ditch (12) is provided with a manhole cover (3) at the opening, the manhole cover (3) is provided with a plurality of first water filtering holes (31), the water passing groove (13) is provided with a filter plate (4) at the port or inside the water passing groove (13), the filter plate (4) is provided with a plurality of second water filtering holes (41), the size of the first water filtering hole (31) and the second water filtering hole (41) is smaller than the size of the grille hole (21); The upper surface of the road body (1) is provided with a sidewalk (102) which is higher than the motor vehicle lane (101), the road edge stone (8) is arranged between the motor vehicle lane (101) and the sidewalk (102), the grille (2) is arranged at the edge of the motor vehicle lane (101) near the road edge stone (8), the water collecting groove (103) is arranged at the edge of the sidewalk (102) near the road edge stone (8), the upper surface of the road edge stone (8) is provided with a plurality of water guide notches (81) at intervals, each water guide notch (81) corresponds to a grille (2); The filter plate (4) is arranged at the port of the water passing groove (13) at the first end and is inclined to the side where the first drainage ditch (11) is located, the road body (1) is provided with a filter residue removing device which can remove the filter residue on the filter plate (4). The first end of the water passing groove (13) is fixed with a filter plate frame (51), the lower end of the filter plate (4) is hinged to the filter plate frame (51), the filter plate (4) is connected with a first elastic member (52), the elastic force of the first elastic member (52) is applied to the filter plate (4) to make the upper end of the filter plate (4) abut against the inner side wall of the first drainage ditch (11), a vertical hole (14) is arranged between the top wall of the water passing groove (13) and the upper surface of the road body (1), an embedded pipe (16) is fixed in the vertical hole (14), the filter residue removing device comprises a top pressing plate (61) and a movable push rod (62), the first end of the top pressing plate (61) is hinged to the embedded pipe (16) or the road body (1), the movable push rod (62) is movably installed in the embedded pipe (16), the upper end of the movable push rod (62) is higher than the upper surface of the road body (1), the embedded pipe (16) is provided with a second elastic member (63) capable of driving the movable push rod (62) to reset upward after the movable push rod (62) is pressed down, a transmission structure is arranged between the movable push rod (62) and the top pressing plate (61), the top pressing plate (61) is rotated forward when the movable push rod (62) moves downward, and the end of the top pressing plate (61) presses the filter plate (4) when the top pressing plate (61) is rotated forward, so that the upper end of the filter plate (4) is separated from the inner side wall of the first drainage ditch (11).

2. The road drainage structure according to claim 1, wherein The transmission structure comprises a first rotating block (64) hinged in the embedded pipe (16) and located below the movable push rod (62), a first connecting rod (65) connected between the movable push rod (62) and the first rotating block (64), and a second connecting rod (66) connected between the first rotating block (64) and the top pressing plate (61).

3. The road drainage structure according to claim 2, characterized in that, The upper end of the embedded pipe (16) is provided with a cover plate (68), the cover plate (68) is provided with a perforation avoiding the movable push rod (62), and the upper surface of the cover plate (68) is provided with a flexible cover (69) shielding the perforation and the upper end of the movable push rod (62).

4. The road drainage structure according to any one of claims 1 to 3, wherein The filter residue removing device comprises a rack (71) fixed in the first drainage ditch (11), a cleaning frame (72) installed on the rack (71), a cleaning brush (73) arranged on the cleaning frame (72), and a residue removing power device capable of driving the cleaning brush (73) to move back and forth to clean the filter plate (4).

5. The road drainage structure according to claim 4, wherein The cleaning frame (72) is movably arranged on the rack (71), and the rack (71) is provided with a folding and unfolding power device capable of driving the cleaning frame (72) to move upward to a folding state.

6. The road drainage structure according to claim 5, wherein The rack (71) is provided with a sliding frame (75) and a guide structure parallel to the filter plate (4), the retractable power device comprises a retractable drive (76) capable of driving the sliding frame (75) to slide along the guide structure, the sliding frame (75) and the cleaning frame (72) are connected through a plurality of third connecting rods (77), the rack (71) is provided with a guide chute (711) and a guide column (712), the guide column (712) has a guide surface (7121) parallel to the guide structure, the cleaning frame (72) is provided with a roller (78) located at the lower end of the guide chute (711), when the sliding frame (75) slides obliquely upward along the guide structure, the roller (78) on the cleaning frame (72) moves obliquely upward along the guide surface (7121) after moving out of the upper end of the guide chute (711), so that the cleaning frame (72) moves to the retracted state.

7. The road drainage structure according to claim 1, wherein The bottom surface of the water guide gap (81) is lower than the bottom surface of the water collecting groove (103), a plurality of transverse water guide grooves (104) are arranged at intervals on the sidewalk (102), and the ends of all the transverse water guide grooves (104) are communicated with the water collecting groove (103).

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