Municipal flood control rain grate system

Abstract

The invention relates to a municipal flood control rain grate system, and belongs to the technical field of municipal rain grates. The municipal flood control rain grate system comprises a rain grate body, a lifting seat installed at the bottom of the rain grate body in a lifting mode and a water collecting barrel arranged at the bottom of the lifting seat, and the rain grate body is provided with a first water inlet hole corresponding to the water collecting barrel and a plurality of second water inlet holes located in the outer side of the water inlet hole. A circulation valve is arranged at the bottom of the water collecting cylinder, the lifting seat is provided with a sealing convex block matched with the second water inlet hole in an inserted mode, and the rain grate further comprises a control mechanism arranged on the rain grate body and used for controlling the opening and closing degree of the first water inlet hole and a collecting mechanism arranged on the lifting seat and used for collecting large filtering objects such as leaves. The filtering effect of the rain grate body on leaf sundries is improved, and the situation that underground drainage is blocked is reduced.

Description

Technical Field

[0001] This application relates to the technical field of municipal rain gratings, and in particular to a municipal flood control rain grating system. Background Art

[0002] Municipal rain gratings (also known as rainwater grates and drainage grates) are important components of the urban drainage system. They are usually installed on both sides of roads, sidewalks, squares and other areas to collect surface rainwater and discharge it into the underground pipe network, while preventing sundries or large particulate garbage from entering the pipeline and causing blockages.

[0003] When there is a lot of rain, in some sections, due to the roadside manhole or the manhole cover being blocked by garbage, waterlogging is very likely to occur, and in severe cases, even floods may occur. Therefore, it is necessary to immediately send special personnel to clean the garbage in the relevant sections. The Chinese utility model patent with the patent number CN222500535U discloses a municipal rain grating, which includes a rain grating main body, a mounting seat that is liftably arranged at the bottom of the rain grating main body, a lifting component that connects the rain grating main body and the mounting seat, and a water collecting cylinder that is arranged at the bottom of the mounting seat and communicates with the upper part of the rain grating main body. The above-mentioned rain grating can drain and collect according to the amount of rainfall.

[0004] For the above rain grating, when encountering heavy rainfall, the mounting seat descends under the action of the water collecting cylinder, so that larger filter objects such as leaves and sundries will directly pass through the first through hole of the rain grating main body and fall and be conveyed into the municipal underground drainage system. This structure does not process filter objects such as leaves and sundries, and is likely to cause blockages in the municipal underground drainage. Summary of the Invention

[0005] In order to improve the filtering of leaves and sundries by the rain grating main body and reduce the occurrence of blockages in the underground drainage, this application provides a municipal flood control rain grating system.

[0006] The municipal flood control rain grating system provided by this application adopts the following technical solutions: A municipal flood control rain grating system includes a rain grating main body, a lifting seat that is liftably installed at the bottom of the rain grating main body, and a water collecting cylinder that is arranged at the bottom of the lifting seat. The rain grating main body is provided with a first water inlet hole corresponding to the water collecting cylinder and a plurality of second water inlet holes located outside the water inlet hole. A flow valve is arranged at the bottom of the water collecting cylinder. The lifting seat is provided with a sealing convex block that is inserted and matched with the second water inlet hole. It also includes a control mechanism arranged on the rain grating main body and used to control the opening and closing size of the first water inlet hole, and a collecting mechanism arranged on the lifting seat and used to collect larger filter objects such as leaves.

[0007] By adopting the above technical solution, the municipal flood control rain grate system can automatically adjust the opening and closing size of the first water inlet hole according to the rainfall amount, thereby effectively controlling the rainwater inflow speed and avoiding serious waterlogging on the road surface due to excessive flow. At the same time, the collection mechanism can intercept larger filter objects such as leaves to prevent them from entering the municipal underground drainage system and causing blockage, ensuring the smoothness of the drainage system. In addition, the plug-in fit design of the sealing bump and the second water inlet hole can open the second water inlet hole when the lifting seat descends, further improving the flood discharge capacity.

[0008] Optionally, the control mechanism includes multiple arc plates, a fixed plate arranged at the bottom of the rain grate main body for the arc plates to slide and install thereon, a limiting structure for limiting the sliding of the arc plates, and a driving member for driving the fixed plate to rotate; The fixed plate and the first water inlet hole are coaxially arranged. Multiple groups of arc plates are circumferentially spaced along the axis of the fixed plate and form a circular cover plate covering the first water inlet hole. The arc plates are provided with spaced tooth grooves, and the fixed plate is provided with thread grooves cooperating with the spaced tooth grooves. When the driving wheel drives the fixed plate to rotate, the arc plates slide radially on the top surface of the fixed plate.

[0009] By adopting the above technical solution, the cooperation of the arc plates, the fixed plate, the limiting structure and the driving member can achieve precise control of the opening and closing size of the first water inlet hole. Multiple groups of arc plates are circumferentially spaced along the fixed plate to form a circular cover plate, making the coverage of the first water inlet hole more uniform. The spaced tooth grooves on the arc plates cooperate with the thread grooves on the fixed plate. When the driving member drives the fixed plate to rotate, the arc plates can slide radially on the top surface of the fixed plate, so as to flexibly adjust the opening degree of the first water inlet hole to meet the drainage requirements under different rainfall conditions.

[0010] Optionally, the rain grate main body is provided with four groups of arc plates. The limiting structure includes a limiting slide rail fixed to the bottom of the rain grate main body and a limiting slide groove arranged on the side wall of the arc plate. The end of the limiting slide rail and the first water inlet hole are staggered.

[0011] By adopting the above technical solution, the cooperation of the limiting slide groove of the arc plate and the limiting slide rail provides a stable guiding effect when the arc plate slides on the fixed plate, avoiding the arc plate from shifting during the sliding process. At the same time, the design that the end of the limiting slide rail is staggered with the first water inlet hole ensures that the arc plate can accurately cover or expose the first water inlet hole during the sliding process, so as to achieve precise control of the opening and closing size of the first water inlet hole.

[0012] Optionally, the rain grate main body is provided with a positioning arc plate on the side of the first water inlet hole facing the lifting seat, and the top of the arc plate is provided with an abutting arc plate for abutting against the positioning arc plate.

[0013] By adopting the above technical solution, the arrangement of the positioning arc plate and the abutting arc plate can ensure that the arc plate maintains accurate position alignment during the sliding process. Specifically, the positioning arc plate provides a clear stop reference for the movement of the arc plate, enabling the arc plate to accurately abut against the positioning arc plate when sliding to the limit position, and also reducing the probability of rainwater entering the threaded groove.

[0014] Optionally, the driving member includes a rotating shaft, a driving gear disposed at one end of the rotating shaft and meshing with the fixed disk, and a driving rotating column disposed at the other end of the rotating shaft. A clockwork spring is wound inside the driving rotating column, and a driving rope connected to one end of the clockwork spring. The other end of the driving rope passes through the inner cavity of the driving rotating column, and a fixing buckle for fixing the end of the driving rope is provided on the side wall of the water collecting cylinder.

[0015] By adopting the above technical solution, the design of the driving member enables the opening and closing size of the first water inlet hole to be automatically adjusted according to the actual situation. Specifically, the cooperative structure of the rotating shaft, the driving gear and the driving rotating column realizes the precise control of the fixed disk, thereby adjusting the position of the arc plate to change the opening size of the first water inlet hole. The introduction of the clockwork spring and the driving rope enables the lifting seat and the water collecting cylinder to reset after the rainwater in the water collecting cylinder is drained, and the clockwork spring drives the arc plate to reset.

[0016] Optionally, a first filter component is arranged in the water collecting cylinder. The first filter component includes a plurality of inclined frames and a first filter element arranged on the inclined frames. The inclined bottom of the first filter element is flush with the top surface of the lifting seat.

[0017] By adopting the above technical solution, the first filter component can effectively intercept larger filter objects such as leaves and sundries, and reduce the blockage caused by sundries directly entering the water collecting cylinder. Among them, the arrangement of the inclined frame and the first filter element enables the filter objects to slide along the inclined surface to the top surface of the lifting seat, facilitating subsequent centralized treatment, and at the same time ensuring smooth water flow through and improving the drainage efficiency.

[0018] Optionally, a scraping component for abutting against the first filter element is arranged at the bottom of the arc plate. The scraping component includes a fixed block, a scraping block slidably mounted on the fixed block, and a fixing spring connecting the scraping block and the fixed block.

[0019] By adopting the above technical solution, the scraping component can effectively remove larger filter objects such as leaves and sundries on the first filter element. Specifically, the fixed block provides an installation basis for the scraping block, and the scraping block can slide on the fixed block, thereby realizing the scraping action on the surface of the first filter element and avoiding the blockage of the filter screen caused by the accumulation of leaves and sundries. The setting of the fixing spring ensures that an appropriate contact pressure is maintained between the scraping block and the first filter element, reducing the wear of the filter screen while ensuring the scraping effect.

[0020] Optionally, the collection mechanism includes collection troughs arranged on opposite sides of the lifting seat. The collection troughs are provided with drainage through-holes for water flow to pass through, and a first filter screen is arranged at the drainage through-holes. Two sets of collection guiding surfaces facing the collection troughs are arranged at the top of the lifting seat.

[0021] By adopting the above technical solution, the collection troughs are arranged on opposite sides of the lifting seat, which can effectively guide larger filter objects such as leaves to converge on both sides, preventing them from directly entering the municipal underground drainage system, thereby reducing the risk of pipeline blockage. The arrangement of the drainage through-holes and the first filter screen allows water flow to pass through smoothly while blocking sundries, further improving the filtering effect. The design of the collection guiding surfaces optimizes the guiding paths of water flow and sundries, enabling sundries to enter the collection troughs more efficiently and enhancing the overall anti-blocking performance.

[0022] Optionally, the collection troughs are detachably installed on the lifting seat. The bottom of the collection troughs is provided with installation slide rails, and the lifting seat is provided with installation chutes for the installation slide rails to be inserted into. The side wall of the installation slide rail is provided with an installation groove, and a locking plunger is arranged in the installation groove. The lifting seat is provided with locking holes on the side wall of the installation chute that cooperate with the locking plunger.

[0023] By adopting the above technical solution, the collection troughs and the lifting seat are detachably connected through the installation slide rails and the installation chutes, which facilitates the cleaning and maintenance of the collection troughs. The locking plunger is arranged in the installation groove on the side wall of the installation slide rail, and the side wall of the installation chute of the lifting seat is provided with locking holes that cooperate with the locking plunger, so that rapid positioning and fixation can be achieved during the installation process, improving the assembly efficiency and ensuring the stability of the connection.

[0024] Optionally, it further includes a fixed frame for the rain grate main body to be rotatably installed and fixed. The fixed frame is fixed to the wellhead, and the arrangement directions of the two sets of collection troughs are perpendicular to the rotation axis of the rain grate main body.

[0025] By adopting the above technical solution, the rain grate system can realize the rotatable installation of the rain grate main body relative to the wellhead, so that the arrangement directions of the two sets of collection troughs are always perpendicular to the rotation axis of the rain grate main body. This design ensures that during the rainwater scouring process, larger filter objects such as leaves and sundries can be more efficiently guided to the collection troughs, preventing them from directly entering the municipal underground drainage system and causing blockage. At the same time, the rotatable installation method facilitates the cleaning and maintenance of the collection troughs, improving the practicability and reliability of the system.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By providing a control mechanism to adjust the opening and closing size of the first water inlet hole, the present application can dynamically adjust the water inflow according to the rainwater flow rate, increase the water inlet capacity during heavy rain, and avoid water accumulation and blockage problems. 2. The collection mechanism can effectively intercept larger filter objects such as leaves and centrally store them through the collection tank body, preventing sundries from directly entering the municipal underground drainage system and reducing the risk of secondary blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the overall cross-sectional schematic diagram of the embodiment of the present application.

[0028] Figure 2 is the cross-sectional schematic diagram of the control mechanism of the embodiment of the present application.

[0029] Figure 3 is the structural schematic diagram of the arc plate of the embodiment of the present application.

[0030] Figure 4 is Figure 2 the partial enlarged schematic diagram at A in

[0031] Figure 5 is Figure 2 the partial enlarged schematic diagram at B in

[0032] Figure 6 is the cross-sectional schematic diagram of the cooperation between the collection tank body and the lifting seat of the embodiment of the present application.

[0033] DESCRIPTION OF REFERENCE NUMERALS: 1, rain grate main body; 11, first water inlet hole; 12, second water inlet hole; 13, positioning arc plate; 2, lifting seat; 21, sealing convex block; 22, collection guiding surface; 23, installation sliding groove; 231, locking hole; 3, water collection cylinder; 31, fixing buckle; 32, first filter screen assembly; 321, inclined frame body; 322, first filter screen element; 4, control mechanism; 41, arc plate; 411, limiting driving part; 4111, spaced tooth grooves; 412, abutting arc plate; 42, fixing disk; 421, threaded groove; 422, driving tooth surface; 43, limiting structure; 431, limiting sliding rail; 432, limiting sliding groove; 44, driving member; 441, rotating shaft; 442, driving gear; 443, driving rotating column; 444, clockwork spring; 445, driving rope; 446, driving housing; 45, rotating mounting seat; 451, relief through hole; 46, scraping component; 461, fixing block; 462, scraping block; 463, scraping spring; 5, collection mechanism; 51, collection tank body; 511, drainage through hole; 512, second filter screen element; 513, installation sliding rail; 514, installation groove; 515, locking plunger; 6, fixing frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the directions opposite to or consistent with the direction of gravity. In addition, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0035] The following will further elaborate on this application with reference to Figures 1-6 the accompanying drawings.

[0036] The embodiment of this application discloses a municipal flood control rain grate system.

[0037] Referring to Figure 1 , the municipal flood control rain grate system includes a rain grate main body 1, a lifting seat 2 installed at the bottom of the rain grate main body 1 in a lifting manner, a water collecting cylinder 3 arranged at the bottom of the lifting seat 2, a control mechanism 4 arranged on the rain grate main body 1, and a collecting mechanism 5 detachably installed on the lifting seat 2.

[0038] The rain grate main body 1 is in the shape of a rectangular plate as a whole. A first water inlet hole 11 is opened at the geometric center of its top surface, and multiple groups of second water inlet holes 12 are arranged in an array on the top surface. The first water inlet hole 11 corresponds to the water collecting cylinder 3, so that rainwater can enter the water collecting cylinder 3 through the first water inlet hole 11. The water collecting cylinder 3 is in the shape of a cylinder with an open top, and rainwater accumulates in the cylinder. The bottom of the water collecting cylinder 3 has a through hole for water to flow out, and a flow valve is arranged at the through hole. When the rate of rainwater entering the water collecting cylinder 3 is greater than the rate of rainwater discharged from the flow valve, the accumulated rainwater in the water collecting cylinder 3 increases, causing the overall weight of the water collecting cylinder 3 to increase and driving the lifting seat 2 to descend vertically.

[0039] At the top of the lifting seat 2, there are sealing bumps 21 that correspond to the second water inlet holes 12 one by one and are hermetically inserted. When the lifting seat 2 moves downward, the sealing bumps 21 are separated from the second water inlet holes 12, enabling the excess accumulated water on the road surface to enter the well through the second water inlet holes 12, thereby improving the drainage efficiency. The lifting seat 2 is slidably connected to the rain grate main body 1 through an elastic component, and the elastic component has the same structure as the lifting component in the comparative document. When the spring of the elastic component is in the normal state, the sealing bumps 21 and the second water inlet holes 12 are hermetically inserted.

[0040] The collecting mechanism 5 is arranged on the lifting seat 2, and is used to collect impurities such as leaves entering from the second water inlet hole 12. In order to facilitate the staff to handle the impurities of the collecting mechanism 5, the present application also includes a fixed frame 6 for rotating the rain screen body 1, and the fixed frame 6 is cast at the wellhead by bolts or concrete, and one side of the length direction of the rain screen body 1 is hingedly matched with the inner side of the fixed frame 6.

[0041] Reference Figure 2 and Figure 3 The control mechanism 4 is used to control the opening size of the first water inlet hole 11, and includes a plurality of arc plates 41, a fixed plate 42 disposed on the rain screen body 1, a limiting structure 43 for limiting the sliding movement of the arc plates 41, and a driving member 44 for driving the fixed plate 42 to rotate. In this embodiment, the control mechanism 4 includes four arc plates 41, which form a complete circular cover plate that covers the first water inlet hole 11, and the circular cover plate and the first water inlet hole 11 are coaxially arranged. A plurality of through holes for rainwater to pass through are arranged in an array on the circular cover plate. The four groups of arc plates 41 can slide radially along the axis of the circular plate, so as to adjust the inner diameter of the first water inlet hole 11. When encountering a small amount of rainfall, the arc plate 41 covers the first water inlet hole 11, which can reduce the situation where larger impurities on the road surface enter the water collecting tube 3 and cause blockage of the flow valve. When encountering a large amount of rainfall, the arc plate 41 opens the first water inlet hole 11 to the maximum state, thereby increasing the descending speed of the water collecting tube 3 and the drainage efficiency of the entire rain screen.

[0042] The arc plate 41 is slidably mounted on the fixed disk 42, and a limit drive portion 411 is provided at the bottom of the arc plate 41, and the limit drive portion 411 and the center line of the arc plate 41 are coaxially arranged. The limit drive portion 411 can be fixed by bolts or welding. The bottom of the limit drive portion 411 is provided with spaced tooth grooves 4111 in the radial direction, and the top of the fixed disk 42 has a thread groove 421 that cooperates with the spaced tooth grooves 4111. The arc plate 41 is radially limited under the action of the limit structure 43, so that when the fixed disk 42 rotates, the arc plate 41 is driven to slide back and forth in the radial direction.

[0043] A rotating mounting seat 45 for rotating the fixed plate 42 is fixed at the bottom of the rain screen body 1. The rotating mounting seat 45 is a cylindrical shell with two ends open. The side wall of the rotating mounting seat 45 has a clearance hole 451 for the limit drive part 411 to pass through. The limit structure 43 includes a limit slide rail 431 arranged at the bottom of the rain screen body 1 and a limit slide groove 432 arranged on opposite sides of the limit drive part 411. The limit slide groove 431 and the limit slide rail 432 are plugged and matched. Among them, the end of the limit slide rail 431 is staggered with the first water inlet hole 11.

[0044] The bottom of the rain grate main body 1 is provided with a positioning arc plate 13 at the first water inlet hole 11. The top of the arc plate 41 is provided with an abutting arc plate 412 for abutting against the outside of the positioning arc plate 13. Through the positioning arc plate 13 and the abutting arc plate 412, the radial sliding of the arc plate 41 can be positioned, and the abutting arc plate 412 can block rainwater, so as to reduce the rainwater from moving along the arc plate 41 to the thread groove 421 and the spaced tooth grooves 4111, ensuring the mating sealing between the arc plate 41 and the fixed plate 42.

[0045] Referring to Figure 2 and Figure 4 The driving member 44 includes a rotating shaft 441, a driving gear 442 arranged at one end of the rotating shaft 441, and a driving rotating column 443 fixedly sleeved on the other end of the rotating shaft 441. The rotating shaft 441 is rotatably installed in the rotating mounting seat 45. The driving gear 442 is a helical gear. The bottom of the fixed plate 42 has a driving tooth surface 422 that cooperates with the driving gear 442. The driving rotating column 443 is entirely located outside the rotating mounting seat 45. A clockwork spring 444 and a driving rope 445 connecting the driving rotating column 443 are wound and installed on the driving rotating column 443. The rotating mounting seat 45 also fixedly installs a driving housing 446 for limiting the clockwork spring 444 outside the driving rotating column 443. The end of the clockwork spring 444 passes through the driving housing 446 and then passes downward through the lifting seat 2.

[0046] The side wall of the water collecting cylinder 3 is provided with a fixing buckle 31 for fixing the end of the driving rope 445. In this embodiment, the rain grate main body 1 is provided with four groups of driving members 44, and the four groups of driving members 44 are circumferentially spaced along the axis of the fixed plate 42. When the water collecting cylinder 3 automatically descends under the action of gravity, the driving ropes 445 of the four groups of driving members 44 are pulled downward, driving the rotating shaft 441 to rotate, thereby realizing the rotation of the fixed plate 42 and finally realizing the radial sliding of the arc plate 41.

[0047] In order to reduce the probability that larger impurities such as leaves on the road surface enter the water collecting cylinder 3 and cause drainage difficulties when the arc plate 41 is in the open state, the top of the water collecting cylinder 3 is provided with a first filter assembly 32. The first filter assembly 32 includes four groups of inclined frames 321 and a first filter element 322 arranged on the inclined frames 321. The four groups of inclined frames 321 are arranged in a quadrangular pyramid, with the apex of the quadrangular pyramid facing upward and the central axis being coaxial with the water collecting cylinder 3. Among them, the inclined bottom of the first filter is flush with the top surface of the lifting seat 2.

[0048] The bottom of the arc plate 41 is provided with a scraping component 46 for abutting against the first filter. The scraping component 46 includes a fixing block 461 fixed to the arc plate 41, a scraping block 462 slidably installed on the fixing block 461, and a scraping spring 463 for connecting the fixing block 461 and the scraping block 462. The end of the scraping block 462 has a scraping surface.

[0049] Reference Figure 1 and Figure 6 Figure 6 , the collection mechanism 5 includes collection trough bodies 51 arranged on opposite sides of the lifting seat 2. The collection trough bodies 51 are located on one side in the width direction of the lifting seat 2. There is a gap between the top surface of the lifting seat 2 and the bottom of the rain grate main body 1, and this gap provides space for the installation of the collection trough bodies 51. The collection trough bodies 51 are provided with drainage through holes 511 for draining rainwater, and a second filter element 512 is arranged at the drainage through holes 511. The top surface of the lifting seat 2 has collection guiding surfaces 22 respectively facing the two groups of collection trough bodies 51 along the center. So that after the rainwater is input from the second water inlet hole 12, it falls on the collection guiding surfaces 22, and then is conveyed along the collection guiding surfaces 22 to the collection trough bodies 51, and after being filtered under the action of the second filter element 512, it is discharged into the underground drainage system.

[0050] To facilitate the cleaning of the garbage in the collection trough bodies 51, the collection trough bodies 51 are also detachably installed on the lifting seat 2. The bottom of the collection trough bodies 51 is provided with installation slide rails 513. The bottom of the lifting seat 2 has installation chutes 23 for the horizontal sliding-in of the installation slide rails 513. In this embodiment, the installation slide rails 513 are in a T shape. Among them, a plurality of installation grooves 514 are also arranged at intervals on the side walls of the installation slide rails 513 of the collection trough bodies 51, and locking plungers 515 are fixedly installed in the installation grooves 514. The locking plungers 515 include plunger shells, plunger ball heads, and plunger springs connecting the inner bottom wall of the plunger shells and the plunger ball heads.

[0051] The lifting seat 2 is provided with locking holes 231 on the side walls of the installation chutes 23 for locking and cooperating with the plunger ball heads of the locking plungers 515. When the staff rotates and opens the rain grate main body 1, the two groups of collection trough bodies 51 can be directly removed from the lifting seat 2, which is convenient for dealing with the impurities adhering to the second filter element 512.

[0052] The implementation principle of a municipal flood control rain grate system in an embodiment of the present application is as follows: The four groups of arcs are in a closed state under normal conditions, and both the first water inlet hole 11 and the second water inlet hole 12 are in a closed situation, reducing the probability of larger sundries on the road surface entering the underground drainage system. At this time, when encountering a situation of less rainfall, the rainwater directly enters the water collection cylinder 3 from the through holes on the arc plate 41; When encountering a situation of larger rainfall, the water collection cylinder 3 automatically descends under the action of gravity, driving the driving rope 445 to descend. The driving rope 445 drives the clockwork spring 444 and the driving rotating column 443 to rotate. The driving gear 442 rotates and then drives the fixed disk 42 to rotate. The rotation of the fixed disk 42 drives the arc plate 41 to radially move along the thread groove 421, so that the first water inlet hole 11 gradually increases, and at the same time the second water inlet hole 12 is also in a communicating state, improving the drainage capacity. The sundries adhering to the first filter net are automatically scraped onto the collection guiding surface 22 of the lifting seat 2 under the action of the scraping component 46, and are finally collected in the collection trough bodies 51.

[0053] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A municipal flood control rain grate system, comprising a rain grate main body (1), a lifting seat (2) installed at the bottom of the rain grate main body (1) in a lifting manner, and a water collecting cylinder (3) arranged at the bottom of the lifting seat (2). The rain grate main body (1) is provided with a first water inlet hole (11) corresponding to the water collecting cylinder (3) and a plurality of second water inlet holes (12) located outside the water inlet hole. A flow valve is arranged at the bottom of the water collecting cylinder (3), and the lifting seat (2) is provided with a sealing convex block (21) that is inserted and matched with the second water inlet hole (12). It is characterized in that, It further includes a control mechanism (4) disposed on the rain grate main body (1) and used for controlling the opening and closing size of the first water inlet hole (11), and a collection mechanism (5) disposed on the lifting seat (2) and used for collecting larger filter materials such as leaves.

2. The municipal flood control rain grate system according to claim 1, wherein The control mechanism (4) includes multiple groups of arc-shaped plates (41), a fixed disk (42) disposed at the bottom of the rain grate main body (1) and for slidably mounting the arc-shaped plates (41), a limiting structure (43) for limiting the sliding of the arc-shaped plates (41), and a driving member (44) for driving the rotation of the fixed disk (42); The fixed disk (42) and the first water inlet hole (11) are coaxially arranged. Multiple groups of the arc-shaped plates (41) are circumferentially spaced along the axis of the fixed disk (42) and form a circular cover plate for covering the first water inlet hole (11). The arc-shaped plates (41) are provided with spaced tooth grooves (4111), and the fixed disk (42) is provided with thread grooves (421) that cooperate with the spaced tooth grooves (4111). When the driving member (44) drives the fixed disk (42) to rotate, the arc-shaped plates (41) radially slide on the top surface of the fixed disk (42).

3. The municipal flood control rain grate system according to claim 2, characterized in that, The rain grate main body (1) is provided with four groups of arc-shaped plates (41). The limiting structure (43) includes a limiting slide rail (431) fixed to the bottom of the rain grate main body (1) and a limiting slide groove (432) provided on the side wall of the arc-shaped plate (41). The end of the limiting slide rail (431) and the first water inlet hole (11) are staggered.

4. The municipal flood control rain grate system according to claim 3, wherein The rain grate main body (1) is provided with a positioning arc plate (13) on the side of the first water inlet hole (11) facing the lifting seat (2). The top of the arc-shaped plate (41) is provided with an abutting arc plate (412) for abutting against the positioning arc plate (13).

5. The municipal flood control rain grate system according to claim 2, wherein The driving member (44) includes a rotating shaft (441), a driving gear (442) disposed at one end of the rotating shaft (441) and meshing with the fixed disk (42), and a driving rotating column (443) disposed at the other end of the rotating shaft (441). A clockwork spring (444) is wound inside the driving rotating column (443), and a driving rope (445) connecting one end of the clockwork spring (444) is provided. The other end of the driving rope (445) passes through the inner cavity of the driving rotating column (443), and a fixed buckle (31) for fixing the end of the driving rope (445) is provided on the side wall of the water collecting cylinder (3).

6. The municipal flood control rain grate system according to claim 2, characterized in that, A first filter screen assembly (32) is disposed inside the water collecting cylinder (3). The first filter screen assembly (32) includes multiple groups of inclined frames (321) and a first filter screen member (322) disposed on the inclined frames. The inclined bottom of the first filter screen member (322) is flush with the top surface of the lifting seat (2).

7. A municipal flood control rain grate system according to claim 6, characterized in that, A scraping assembly (46) for abutting against the first filter screen member (322) is disposed at the bottom of the arc-shaped plate (41). The scraping assembly (46) includes a fixed block (461), a scraping block (462) slidably mounted on the fixed block (461), and a fixed spring connecting the scraping block (462) and the fixed block (461).

8. A municipal flood control rain grate system according to claim 1, characterized in that, The collection mechanism (5) includes collection trough bodies (51) arranged on opposite sides of the lifting seat (2). The collection trough bodies (51) are provided with drainage through holes (511) for water flow to pass through, and a first filter screen is arranged at the drainage through holes (511). Two sets of collection guiding surfaces (22) facing the collection trough bodies (51) are arranged at the top of the lifting seat (2).

9. The municipal flood control rain grate system according to claim 8, characterized in that, The collection trough bodies (51) are detachably installed on the lifting seat (2). An installation slide rail (513) is arranged at the bottom of the collection trough bodies (51). The lifting seat (2) is provided with an installation chute (23) for the installation slide rail (513) to be inserted into. An installation groove (514) is arranged on the side wall of the installation slide rail (513), and a locking plunger (515) is arranged in the installation groove (514). The lifting seat (2) is provided with a locking hole (231) on the side wall of the installation chute (23) for cooperating with the locking plunger (515).

10. A municipal flood control rain grate system according to claim 8, characterized in that, It further includes a fixed frame (6) for the rain grate main body (1) to be rotatably installed. The fixed frame (6) is fixed to the wellhead. The arrangement directions of the two sets of collection trough bodies (51) are perpendicular to the length direction of the rain grate main body (1).

Images