Self-cleaning rainwater grate water and solid separation device

CN224853897UActive Publication Date: 2026-10-16CHINA CONSTR EIGHT ENG DIV CORP LTD
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Patent Information

Application Number
CN202522146318.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-10
Publication Date
2026-10-16
Estimated Expiration
2035-10-10

AI Technical Summary

Technical Problem

[0003]传统雨水箅子为保证雨水箅子自身刚度和强度致使格栅条尺寸得足够宽,同时为保证泄水流量而使格栅条间距比较大,传统雨水箅子没有二次过滤结构,这样容易导致垃圾树叶等杂物通过格栅条间隙流入下水道而造成下水道堵塞,降低泄水能力,尤其在泄水量大而排水不畅时非常容易造成地表积水而使行人和车辆存在安全风险和经济损失,同时也会增加地下下水道堵塞次数和清理成本,当堵塞无法清理时还将对排水系统正常运行造成影响,甚至需要破路重做管道而带来更大的社会资源浪费和影响

Benefits of technology

[0026] 1. In the self-cleaning rainwater grate water-material separation device of this utility model, the front flat water-material separation plate and the rear flat water-material separation plate are respectively installed in the front and rear frames of the cuboid outer frame structure; the left flat water-material separation plate and the right flat water-material separation plate are respectively installed in the left and right frames of the cuboid outer frame structure; and the conical water-material separation plate is installed in the bottom frame of the cuboid outer frame structure and extends obliquely upwards and towards the center from the bottom frame. The cuboid outer frame structure... The top frame has a vertical opening. The left and right ends of the top frame extend to the left and right respectively, with a left flange and a right flange. The front and rear sides of the top frame extend to the front and rear respectively, with a front flange and a rear flange. The rain grate rests against the top frame, the left flange, the right flange, the front flange, and the rear flange. Therefore, it can ensure the drainage flow, reduce the blockage of the sewer by garbage leaves and other debris, and has a self-cleaning function. It is easy to use, has low maintenance costs, and is suitable for large-scale promotion and application.

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Abstract

The utility model provides a kind of self-cleaning rainwater grate water and matter separation equipment, wherein front and rear flat plate type water and matter separation plate is respectively arranged in the front side frame and rear side frame of cuboid outer frame structure, left and right flat plate type water and matter separation plate is respectively arranged in the left side frame and right side frame of cuboid outer frame structure, conical water and matter separation plate is arranged in the bottom frame of cuboid outer frame structure and is set up from bottom frame to upwards to center inclined extension, the top frame of cuboid outer frame structure is vertically provided with opening, the left and right ends of top frame are respectively set up left and right flange extending to left and right, the front and rear sides of top frame are respectively set up front and rear flange extending to front and rear, rainwater grate is abutted on top frame, left and right flange and front and rear flange. The utility model can not only ensure the water discharge flow, but also reduce garbage leaf and other sundries to block sewer, simultaneously has self-cleaning function, easy to use, and low maintenance cost.
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Description

Technical Field

[0001] This utility model relates to the field of municipal engineering technology, and particularly to the field of rainwater grate technology, specifically referring to a self-cleaning rainwater grate water-material separation device. Background Technology

[0002] Rainwater grates are mainly used in drainage systems for urban roads, courtyards, and underground garages. They are usually installed at sewer inlets to cover and drain water. Steel grating rainwater grates are typically made of flat steel and twisted square steel or flat steel welded together. The grid structure intercepts leaves, garbage, and other debris to prevent sewer blockage, while quickly collecting rainwater into the underground pipe network.

[0003] Traditional storm drain grates require sufficiently wide slats to ensure rigidity and strength, and large slat spacing to guarantee drainage flow. Lacking a secondary filtration structure, traditional storm drain grates are prone to allowing debris such as leaves and foliage to flow through the gaps into the sewers, causing blockages and reducing drainage capacity. This is especially problematic when drainage is heavy and slow, easily leading to surface flooding, posing safety risks to pedestrians and vehicles, and causing economic losses. It also increases the frequency and cost of sewer blockages. When blockages cannot be cleared, they can disrupt the normal operation of the drainage system, potentially requiring road excavation and pipe reconstruction, resulting in greater waste of social resources and negative impacts. Conversely, using existing simple filtration devices is also prone to clogging, reducing drainage capacity, increasing cleaning frequency, and raising maintenance costs, thus increasing maintenance costs and safety risks, rendering these devices unsuitable.

[0004] Therefore, it is desirable to provide a self-cleaning rainwater grate water-material separation device that can ensure the drainage flow rate, reduce the blockage of sewers by debris such as garbage and leaves, and has a self-cleaning function, is easy to use, and has low maintenance costs. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, one objective of this utility model is to provide a self-cleaning rainwater grate water-material separation device, which can ensure the drainage flow rate, reduce the blockage of sewers by garbage, leaves and other debris, and has a self-cleaning function. It is easy to use, has low maintenance costs, and is suitable for large-scale promotion and application.

[0006] Another objective of this invention is to provide a self-cleaning rainwater grate water-material separation device, which allows for filter screen adjustment and replacement according to rainfall volume to meet different water flow requirements and is suitable for large-scale application.

[0007] To achieve the above objectives, this utility model provides a self-cleaning rainwater grate water-material separation device, including a rainwater grate and a water-material separation device. The rainwater grate is horizontally arranged along the left-right direction, and the rainwater grate has vertically arranged filter holes. The number of filter holes is multiple, and the multiple filter holes are horizontally spaced apart from each other. The water-material separation device includes a cuboid outer frame structure, a front flat water-material separation plate, a rear flat water-material separation plate, a left flat water-material separation plate, a right flat water-material separation plate, and a conical water-material separation plate, wherein:

[0008] The cuboid outer frame structure is vertically arranged and along the left-right direction. The front flat water-material separation plate and the rear flat water-material separation plate are both vertically arranged and along the left-right direction, and are spaced apart from each other. The front flat water-material separation plate and the rear flat water-material separation plate are respectively arranged in the front and rear frames of the cuboid outer frame structure. The left flat water-material separation plate and the right flat water-material separation plate are both vertically arranged and along the front-back direction, and are spaced apart from each other. The left flat water-material separation plate and the right flat water-material separation plate are respectively arranged in the left and right frames of the cuboid outer frame structure. The conical water-material separation plate is arranged in the bottom frame of the cuboid outer frame structure and extends upward from the bottom frame towards the center at an incline.

[0009] The top frame of the cuboid outer frame structure has a vertical opening. The left and right ends of the top frame extend to the left and right respectively to form a left flange and a right flange. The front and rear sides of the top frame extend to the front and rear respectively to form a front flange and a rear flange. The rain grate abuts against the top frame, the left flange, the right flange, the front flange, and the rear flange. The plurality of filter holes are located above the opening.

[0010] Preferably, the cuboid outer frame structure includes a left front frame rod, a left rear frame rod, a right front frame rod, a right rear frame rod, a front upper frame rod, a rear upper frame rod, a left upper frame rod, a right upper frame rod, a front lower frame rod, a rear lower frame rod, a left lower frame rod, and a right lower frame rod, wherein:

[0011] The left front frame rod, the left rear frame rod, the right front frame rod, and the right rear frame rod are all vertically arranged. The left front frame rod, the left rear frame rod, the right front frame rod, and the right rear frame rod are all spaced apart from each other in front and behind. The left front frame rod, the right front frame rod, the left rear frame rod, and the right rear frame rod are all spaced apart from each other in the left and right.

[0012] The front upper frame rod and the rear upper frame rod are both horizontally arranged and along the left-right direction, and are spaced apart from each other. The front upper frame rod is located between the upper ends of the left front frame rod and the right front frame rod, and connects the upper ends of the left front frame rod and the right front frame rod respectively. The rear upper frame rod is located between the upper ends of the left rear frame rod and the right rear frame rod, and connects the upper ends of the left rear frame rod and the right rear frame rod respectively. The left upper frame rod and the right upper frame rod are both horizontally arranged and along the front-back direction, and are spaced apart from each other. The left upper frame rod is located between the upper ends of the left front frame rod and the left rear frame rod, and connects the upper ends of the left front frame rod and the left rear frame rod respectively. The right upper frame rod is located between the upper ends of the right front frame rod and the right rear frame rod, and connects the upper ends of the right front frame rod and the right rear frame rod respectively.

[0013] Both the front lower frame rod and the rear lower frame rod are horizontally arranged and along the left-right direction, and are spaced apart from each other. The front lower frame rod is located between the lower ends of the left front frame rod and the right front frame rod, and connects to the lower ends of the left front frame rod and the right front frame rod, respectively. The rear lower frame rod is located between the lower ends of the left rear frame rod and the right rear frame rod, and connects to the lower ends of the left rear frame rod and the right rear frame rod, respectively. Both the left lower frame rod and the right lower frame rod are horizontally arranged and along the front-back direction, and are spaced apart from each other. The left lower frame rod is located between the lower ends of the left front frame rod and the left rear frame rod, and connects to the lower ends of the left front frame rod and the left rear frame rod, respectively. The right lower frame rod is located between the lower ends of the right front frame rod and the right rear frame rod, and connects to the lower ends of the right front frame rod and the right rear frame rod, respectively.

[0014] The front flat-plate water-solid separation plate is located between the left front frame rod, the right front frame rod, the front upper frame rod, and the front lower frame rod, and is connected to the left front frame rod, the right front frame rod, the front upper frame rod, and the front lower frame rod, respectively. The rear flat-plate water-solid separation plate is located between the left rear frame rod, the right rear frame rod, the rear upper frame rod, and the rear lower frame rod, and is connected to the left rear frame rod, the right rear frame rod, the rear upper frame rod, and the rear lower frame rod, respectively. The left flat-plate water-solid separation plate is located between the left front frame rod, the left rear frame rod, the left upper frame rod, and the left lower frame rod, and is connected to the left front frame rod, the left rear frame rod, the left upper frame rod, and the left lower frame rod, respectively. The right flat-plate water-solid separation plate is located between the right front frame rod, the right rear frame rod, the left upper frame rod, and the left lower frame rod, respectively. The frame rod, the right rear frame rod, the right upper frame rod, and the right lower frame rod are connected to the right front frame rod, the right rear frame rod, the right upper frame rod, and the right lower frame rod respectively. The conical water-material separation plate is located between the front lower frame rod, the rear lower frame rod, the left lower frame rod, and the right lower frame rod and is connected to the front lower frame rod, the rear lower frame rod, the left lower frame rod, and the right lower frame rod respectively. The opening is located between the front upper frame rod, the rear upper frame rod, the left upper frame rod, and the right upper frame rod. The left flange extends to the left from the left upper frame rod, the right flange extends to the right from the right upper frame rod, the front flange extends forward from the front upper frame rod, and the rear flange extends backward from the rear upper frame rod.

[0015] Preferably, the front flat-plate water-material separation plate includes a front left fixed rod, a front right fixed rod, a front upper fixed rod, a front lower fixed rod, and a front filter screen. The front left and front right fixed rods are both vertically arranged and spaced apart from each other. The front upper and front lower fixed rods are both horizontally arranged and spaced apart from each other. The front upper fixed rod is located between the upper ends of the front left and front right fixed rods and connects to the upper ends of the front left and front right fixed rods respectively. The front lower fixed rod is located between the front left and front right fixed rods. The lower end is between the lower end of the front right fixed rod and the lower end of the front left fixed rod and the lower end of the front right fixed rod, respectively. The front filter screen is vertically arranged and arranged along the left and right direction. The front filter screen is located between the front left fixed rod, the front right fixed rod, the front upper fixed rod and the front lower fixed rod and is respectively connected to the front left fixed rod, the front right fixed rod, the front upper fixed rod and the front lower fixed rod. The front left fixed rod, the front right fixed rod, the front upper fixed rod and the front lower fixed rod are all located in the front side frame and are all connected to the front side frame.

[0016] Preferably, the rear flat-plate water-material separation plate includes a rear left fixing rod, a rear right fixing rod, a rear upper fixing rod, a rear lower fixing rod, and a rear filter screen. The rear left and rear right fixing rods are both vertically arranged and spaced apart from each other. The rear upper and rear lower fixing rods are both horizontally arranged and spaced apart from each other. The rear upper fixing rod is located between the upper ends of the rear left and rear right fixing rods and connects to the upper ends of the rear left and rear right fixing rods, respectively. The rear lower fixing rod is located between the rear left and rear right fixing rods. The lower end is connected to the lower end of the rear left fixed rod and the lower end of the rear right fixed rod, respectively. The rear filter screen is vertically arranged and arranged along the left and right direction. The rear filter screen is located between the rear left fixed rod, the rear right fixed rod, the rear upper fixed rod and the rear lower fixed rod and is connected to the rear left fixed rod, the rear right fixed rod, the rear upper fixed rod and the rear lower fixed rod, respectively. The rear left fixed rod, the rear right fixed rod, the rear upper fixed rod and the rear lower fixed rod are all located in the rear frame and are all connected to the rear frame.

[0017] Preferably, the left flat water-material separation plate includes a left front fixing rod, a left rear fixing rod, a left upper fixing rod, a left lower fixing rod, and a left filter screen. The left front fixing rod and the left rear fixing rod are both vertically arranged and spaced apart from each other. The left upper fixing rod and the left lower fixing rod are both horizontally arranged in the front-to-back direction and spaced apart vertically. The left upper fixing rod is located between the upper ends of the left front fixing rod and the upper ends of the left rear fixing rod, and connects the upper ends of the left front fixing rod and the upper ends of the left rear fixing rod, respectively. The left lower fixing rod is located between the left front fixing rod and the left rear fixing rod. The lower end of the filter screen is located between the lower end of the left front fixed rod and the lower end of the left rear fixed rod, and is connected to the lower end of the left front fixed rod and the lower end of the left rear fixed rod, respectively. The left filter screen is vertically arranged and arranged along the front-to-back direction. The left filter screen is located between the left front fixed rod, the left rear fixed rod, the left upper fixed rod and the left lower fixed rod, and is connected to the left front fixed rod, the left rear fixed rod, the left upper fixed rod and the left lower fixed rod, respectively. The left front fixed rod, the left rear fixed rod, the left upper fixed rod and the left lower fixed rod are all located in the left side frame and are all connected to the left side frame.

[0018] Preferably, the right flat water-material separation plate includes a right front fixing rod, a right rear fixing rod, a right upper fixing rod, a right lower fixing rod, and a right filter screen. The right front fixing rod and the right rear fixing rod are both vertically arranged and spaced apart from each other. The right upper fixing rod and the right lower fixing rod are both horizontally arranged in the front-to-back direction and spaced apart vertically. The right upper fixing rod is located between the upper ends of the right front fixing rod and the upper ends of the right rear fixing rod, and connects the upper ends of the right front fixing rod and the upper ends of the right rear fixing rod, respectively. The right lower fixing rod is located between the right front fixing rod and the right rear fixing rod. The lower end of the filter screen is located between the lower end of the right front fixed rod and the lower end of the right rear fixed rod, and is connected to the lower end of the right front fixed rod and the lower end of the right rear fixed rod, respectively. The right filter screen is vertically arranged and arranged along the front-back direction. The right filter screen is located between the right front fixed rod, the right rear fixed rod, the right upper fixed rod and the right lower fixed rod, and is connected to the right front fixed rod, the right rear fixed rod, the right upper fixed rod and the right lower fixed rod, respectively. The right front fixed rod, the right rear fixed rod, the right upper fixed rod and the right lower fixed rod are all located in the right side frame and are all connected to the right side frame.

[0019] Preferably, the conical water-material separation plate includes a bottom front fixing rod, a bottom rear fixing rod, a bottom left fixing rod, a bottom right fixing rod, a bottom top fixing rod, a left front inclined rod, a left rear inclined rod, a right front inclined rod, a right rear inclined rod, a front inclined filter screen, a rear inclined filter screen, a left inclined filter screen, and a right inclined filter screen, wherein:

[0020] The front and rear bottom fixing rods are both horizontally arranged and positioned in the left-right direction, spaced apart from each other front-to-back. The left and right bottom fixing rods are both horizontally arranged and positioned in the front-to-back direction, spaced apart from each other left-to-right. The left bottom fixing rod is located between the left ends of the front and rear bottom fixing rods and connects to the left ends of the front and rear bottom fixing rods, respectively. The right bottom fixing rod is located between the right ends of the front and rear bottom fixing rods and connects to the right ends of the front and rear bottom fixing rods, respectively. The top bottom fixing rod is horizontally arranged along the left-right direction and is located between the front, rear, left, and right bottom fixing rods. Above the center position between them, the left front diagonal bar is located between the left end of the bottom front fixed bar and the left end of the bottom upper fixed bar and connects the left end of the bottom front fixed bar and the left end of the bottom upper fixed bar respectively; the left rear diagonal bar is located between the left end of the bottom rear fixed bar and the left end of the bottom upper fixed bar and connects the left end of the bottom rear fixed bar and the left end of the bottom upper fixed bar respectively; the right front diagonal bar is located between the right end of the bottom front fixed bar and the right end of the bottom upper fixed bar and connects the right end of the bottom front fixed bar and the right end of the bottom upper fixed bar respectively; the right rear diagonal bar is located between the right end of the bottom rear fixed bar and the right end of the bottom upper fixed bar and connects the right end of the bottom rear fixed bar and the right end of the bottom upper fixed bar respectively.

[0021] The front inclined filter is arranged along the left-right direction and inclined upwards and backwards from front to back. The front inclined filter is located between the left front inclined rod, the right front inclined rod, the bottom front fixed rod, and the bottom upper fixed rod, and is connected to the left front inclined rod, the right front inclined rod, the bottom front fixed rod, and the bottom upper fixed rod, respectively. The rear inclined filter is arranged along the left-right direction and inclined upwards and backwards from back to front. The rear inclined filter is located between the left rear inclined rod, the right rear inclined rod, the bottom rear fixed rod, and the bottom upper fixed rod, and is connected to the left rear inclined rod, the right rear inclined rod, the bottom rear fixed rod, and the bottom upper fixed rod, respectively. The left inclined filter is arranged along the left-right direction and inclined upwards and backwards from back to front. The filter is arranged in the front-to-back direction and tilted upwards and to the right from left to right. The left tilted filter is located between the left front inclined rod, the left rear inclined rod, and the bottom left fixed rod and is connected to the left front inclined rod, the left rear inclined rod, and the bottom left fixed rod, respectively. The right tilted filter is arranged in the front-to-back direction and tilted upwards and to the left from right to left. The right tilted filter is located between the right front inclined rod, the right rear inclined rod, and the bottom right fixed rod and is connected to the right front inclined rod, the right rear inclined rod, and the bottom right fixed rod, respectively. The bottom front fixed rod, the bottom rear fixed rod, the bottom left fixed rod, and the bottom right fixed rod are all located in the bottom frame and are all connected to the bottom frame.

[0022] Preferably, the front flat water-material separation plate, the rear flat water-material separation plate, the left flat water-material separation plate, the right flat water-material separation plate, and the conical water-material separation plate are detachably connected to the front frame, the rear frame, the left frame, the right frame, and the bottom frame, respectively.

[0023] More preferably, the front flat water-material separation plate, the rear flat water-material separation plate, the left flat water-material separation plate, the right flat water-material separation plate, and the conical water-material separation plate are respectively snapped into and connected to the front frame, the rear frame, the left frame, the right frame, and the bottom frame.

[0024] Furthermore, the water-solid separation device also includes retaining rings, and the front flat water-solid separation plate, the rear flat water-solid separation plate, the left flat water-solid separation plate, the right flat water-solid separation plate and the conical water-solid separation plate are respectively connected to the front frame, the rear frame, the left frame, the right frame and the bottom frame by retaining rings.

[0025] The main beneficial effects of this utility model are as follows:

[0026] 1. In the self-cleaning rainwater grate water-material separation device of this utility model, the front flat water-material separation plate and the rear flat water-material separation plate are respectively installed in the front and rear frames of the cuboid outer frame structure; the left flat water-material separation plate and the right flat water-material separation plate are respectively installed in the left and right frames of the cuboid outer frame structure; and the conical water-material separation plate is installed in the bottom frame of the cuboid outer frame structure and extends obliquely upwards and towards the center from the bottom frame. The cuboid outer frame structure... The top frame has a vertical opening. The left and right ends of the top frame extend to the left and right respectively, with a left flange and a right flange. The front and rear sides of the top frame extend to the front and rear respectively, with a front flange and a rear flange. The rain grate rests against the top frame, the left flange, the right flange, the front flange, and the rear flange. Therefore, it can ensure the drainage flow, reduce the blockage of the sewer by garbage leaves and other debris, and has a self-cleaning function. It is easy to use, has low maintenance costs, and is suitable for large-scale promotion and application.

[0027] 2. The front flat water-material separation plate, rear flat water-material separation plate, left flat water-material separation plate, right flat water-material separation plate, and conical water-material separation plate of the self-cleaning rainwater grate water-material separation device of this utility model are detachably connected to the front frame, rear frame, left frame, right frame, and bottom frame, respectively. Therefore, the filter screen can be adjusted and replaced according to the amount of rainfall to meet the needs of different water flow rates, making it suitable for large-scale promotion and application.

[0028] These and other objects, features and advantages of this utility model will be fully apparent from the following detailed description and drawings, and can be achieved by the means, devices and combinations thereof specifically pointed out in the description of the utility model. Attached Figure Description

[0029] Figure 1 This is a top view schematic diagram of a specific embodiment of the self-cleaning rainwater grate water-material separation device of this utility model.

[0030] Figure 2 yes Figure 1 A cross-sectional view of position AA in the middle.

[0031] Figure 3 yes Figure 2 A cross-sectional view of the BB position.

[0032] (Explanation of reference numerals in the attached diagram)

[0033] 1. Rain grate; 11. Filter holes;

[0034] 2. Water-solid separation device;

[0035] 21. Rectangular frame structure; 211 Right front frame member; 212 Right rear frame member; 213 Front upper frame member; 214 Rear upper frame member; 215 Right upper frame member; 216 Front lower frame member; 217 Rear lower frame member; 218 Left lower frame member; 219 Right lower frame member;

[0036] 22 Right flat plate water-material separation plate; 221 Right front fixing rod; 222 Right rear fixing rod; 223 Right upper fixing rod; 224 Right lower fixing rod; 225 Right filter screen;

[0037] 23. Conical water-material separation plate; 231. Bottom front fixing rod; 232. Bottom rear fixing rod; 233. Bottom left fixing rod; 234. Bottom right fixing rod; 235. Bottom top fixing rod; 236. Left front inclined rod; 237. Left rear inclined rod; 238. Right front inclined rod; 239. Right rear inclined rod; 240. Front inclined filter screen; 241. Rear inclined filter screen; 242. Left inclined filter screen; 243. Right inclined filter screen;

[0038] 24 Front flange; 25 Rear flange; 26 Snap ring;

[0039] 3 sewer outlet. Detailed Implementation

[0040] In order to better understand the technical content of this utility model, the following embodiments are provided for detailed description.

[0041] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] Please see Figures 1-3 As shown, in a specific embodiment of this utility model, the self-cleaning rainwater grate water-material separation device of this utility model includes a rainwater grate 1 and a water-material separation device 2. The rainwater grate 1 is horizontally arranged and arranged in the left-right direction. The rainwater grate 1 is vertically arranged with filter holes 11. The number of filter holes 11 is multiple, and the multiple filter holes 11 are arranged horizontally spaced from each other. The water-material separation device 2 includes a cuboid outer frame structure 21, a front flat water-material separation plate (not shown in the figure), a rear flat water-material separation plate (not shown in the figure), a left flat water-material separation plate (not shown in the figure), a right flat water-material separation plate 22, and a conical water-material separation plate 23, wherein:

[0043] The cuboid outer frame structure 21 is vertically arranged and along the left-right direction. The front flat water-material separation plate and the rear flat water-material separation plate are both vertically arranged and along the left-right direction, and are spaced apart from each other. The front flat water-material separation plate and the rear flat water-material separation plate are respectively arranged in the front frame and the rear frame of the cuboid outer frame structure 21. The left flat water-material separation plate and the right flat water-material separation plate 22 are both vertically arranged and along the front-back direction, and are spaced apart from each other. The left flat water-material separation plate and the right flat water-material separation plate 22 are respectively arranged in the left frame and the right frame of the cuboid outer frame structure 21. The conical water-material separation plate 23 is arranged in the bottom frame of the cuboid outer frame structure 21 and extends upward from the bottom frame towards the center.

[0044] The top frame of the cuboid outer frame structure 21 has a vertical opening. The left and right ends of the top frame extend to the left and right respectively to form a left flange and a right flange. The front and rear sides of the top frame extend to the front and rear respectively to form a front flange 24 and a rear flange 25. The rain grate 1 abuts against the top frame, the left flange, the right flange, the front flange 24 and the rear flange 25. The plurality of filter holes 11 are located above the opening.

[0045] The rectangular frame structure 21 can have any suitable configuration; please refer to [link / reference]. Figures 2-3As shown, in a specific embodiment of this utility model, the cuboid outer frame structure 21 includes a left front frame rod (not shown in the figure), a left rear frame rod (not shown in the figure), a right front frame rod 211, a right rear frame rod 212, a front upper frame rod 213, a rear upper frame rod 214, a left upper frame rod (not shown in the figure), a right upper frame rod 215, a front lower frame rod 216, a rear lower frame rod 217, a left lower frame rod 218, and a right lower frame rod 219, wherein:

[0046] The left front frame rod, the left rear frame rod, the right front frame rod 211 and the right rear frame rod 212 are all vertically arranged. The left front frame rod, the left rear frame rod, the right front frame rod 211 and the right rear frame rod 212 are all spaced apart from each other in front and behind. The left front frame rod, the right front frame rod 211 and the left rear frame rod and the right rear frame rod 212 are all spaced apart from each other in the left and right.

[0047] Both the front upper frame rod 213 and the rear upper frame rod 214 are horizontally arranged and along the left-right direction, spaced apart from each other. The front upper frame rod 213 is located between the upper ends of the left front frame rod and the right front frame rod 211, and connects the upper ends of the left front frame rod and the right front frame rod 211, respectively. The rear upper frame rod 214 is located between the upper ends of the left rear frame rod and the right rear frame rod 212, and connects the upper ends of the left rear frame rod and the right rear frame rod 212, respectively. The upper left frame rod and the upper right frame rod 215 are both horizontally arranged and arranged along the front-back direction and are spaced apart from each other. The upper left frame rod is located between the upper end of the upper left front frame rod and the upper end of the upper left rear frame rod and connects the upper ends of the upper left front frame rod and the upper ends of the upper left rear frame rod, respectively. The upper right frame rod 215 is located between the upper end of the upper right front frame rod 211 and the upper end of the upper right rear frame rod 212 and connects the upper ends of the upper right front frame rod 211 and the upper ends of the upper right rear frame rod 212, respectively.

[0048] The front lower frame rod 216 and the rear lower frame rod 217 are both horizontally arranged and along the left-right direction, and are spaced apart from each other. The front lower frame rod 216 is located between the lower end of the left front frame rod and the lower end of the right front frame rod 211, and connects the lower ends of the left front frame rod and the right front frame rod 211, respectively. The rear lower frame rod 217 is located between the lower end of the left rear frame rod and the lower end of the right rear frame rod 212, and connects the lower ends of the left rear frame rod and the right rear frame rod 212, respectively. The lower left frame rod 218 and the lower right frame rod 219 are both horizontally arranged and arranged along the front-back direction, and are spaced apart from each other on the left and right sides. The lower left frame rod 218 is located between the lower end of the lower left front frame rod and the lower end of the lower left rear frame rod and connects the lower ends of the lower left front frame rod and the lower ends of the lower left rear frame rod, respectively. The lower right frame rod 219 is located between the lower end of the lower right front frame rod 211 and the lower end of the lower right rear frame rod 212 and connects the lower ends of the lower right front frame rod 211 and the lower ends of the lower right rear frame rod 212, respectively.

[0049] The front flat-plate water-solid separator is located between the left front frame rod, the right front frame rod 211, the front upper frame rod 213, and the front lower frame rod 216, and is connected to the left front frame rod, the right front frame rod 211, the front upper frame rod 213, and the front lower frame rod 216 respectively. The rear flat-plate water-solid separator is located between the left rear frame rod, the right rear frame rod 212, the rear upper frame rod 214, and the rear lower frame rod 217, and is connected to the left front frame rod, the right rear frame rod 212, the rear upper frame rod 214, and the rear lower frame rod 217 respectively. The left rear frame rod, the right rear frame rod 212, the upper rear frame rod 214, and the lower rear frame rod 217 are described above. The left flat plate water-solid separation plate is located between the left front frame rod, the left rear frame rod, the upper left frame rod, and the lower left frame rod 218 and is connected to the left front frame rod, the left rear frame rod, the upper left frame rod, and the lower left frame rod 218 respectively. The right flat plate water-solid separation plate 22 is located between the right front frame rod 211 and the right rear frame rod 217. 2. The upper right frame rod 215 and the lower right frame rod 219 are connected to the front right frame rod 211, the rear right frame rod 212, the upper right frame rod 215, and the lower right frame rod 219, respectively. The conical water-material separation plate 23 is located between the lower front frame rod 216, the lower rear frame rod 217, the lower left frame rod 218, and the lower right frame rod 219, and is connected to the lower front frame rod 216, the lower rear frame rod 217, and the lower right frame rod 219, respectively. The lower frame rod 218 and the lower right frame rod 219 are provided. The opening is located between the upper front frame rod 213, the upper rear frame rod 214, the upper left frame rod, and the upper right frame rod 215. The left flange extends to the left from the upper left frame rod, the right flange extends to the right from the upper right frame rod 215, the front flange 24 extends forward from the upper front frame rod 213, and the rear flange 25 extends backward from the upper rear frame rod 214.

[0050] The left front frame rod, the left rear frame rod, the right front frame rod 211, the right rear frame rod 212, the front upper frame rod 213, the rear upper frame rod 214, the left upper frame rod, the right upper frame rod 215, the front lower frame rod 216, the rear lower frame rod 217, the left lower frame rod 218, and the right lower frame rod 219 can be rods of any suitable material. In a specific embodiment of this utility model, the left front frame rod, the left rear frame rod, the right front frame rod 211, the right rear frame rod 212, the front upper frame rod 213, the rear upper frame rod 214, the left upper frame rod, the right upper frame rod 215, the front lower frame rod 216, the rear lower frame rod 217, the left lower frame rod 218, and the right lower frame rod 219 are all threaded steel bar rods.

[0051] The diameters of the left front frame rod, the left rear frame rod, the right front frame rod 211, the right rear frame rod 212, the front upper frame rod 213, the rear upper frame rod 214, the left upper frame rod, the right upper frame rod 215, the front lower frame rod 216, the rear lower frame rod 217, the left lower frame rod 218, and the right lower frame rod 219 can be determined as needed in this utility model. In one specific embodiment, the diameters of the left front frame rod, the left rear frame rod, the right front frame rod 211, the right rear frame rod 212, the front upper frame rod 213, the rear upper frame rod 214, the left upper frame rod, the right upper frame rod 215, the front lower frame rod 216, the rear lower frame rod 217, the left lower frame rod 218, and the right lower frame rod 219 are all 14 mm.

[0052] The front flat-plate water-solid separator can have any suitable configuration. In a specific embodiment of this utility model, the front flat-plate water-solid separator includes a front left fixing rod, a front right fixing rod, a front upper fixing rod, a front lower fixing rod, and a front filter screen. The front left fixing rod and the front right fixing rod are both vertically arranged and spaced apart from each other on the left and right sides. The front upper fixing rod and the front lower fixing rod are both horizontally arranged and spaced apart from each other on the left and right sides. The front upper fixing rod is located between the upper ends of the front left fixing rod and the upper ends of the front right fixing rod and connects the upper ends of the front left fixing rod and the upper ends of the front right fixing rod, respectively. The lower front fixing rod is located between the lower ends of the left front fixing rod and the right front fixing rod, and connects the lower ends of the left front fixing rod and the right front fixing rod, respectively. The front filter is vertically arranged and arranged along the left-right direction. The front filter is located between the left front fixing rod, the right front fixing rod, the upper front fixing rod, and the lower front fixing rod, and connects the left front fixing rod, the right front fixing rod, the upper front fixing rod, and the lower front fixing rod, respectively. The left front fixing rod, the right front fixing rod, the upper front fixing rod, and the lower front fixing rod are all located in the front side frame and are all connected to the front side frame. In the case where the cuboid outer frame structure 21 includes a left front frame rod, a left rear frame rod, a right front frame rod 211, a right rear frame rod 212, a front upper frame rod 213, a rear upper frame rod 214, a left upper frame rod, a right upper frame rod 215, a front lower frame rod 216, a rear lower frame rod 217, a left lower frame rod 218, and a right lower frame rod 219, the front left fixing rod, the front right fixing rod, the front upper fixing rod, and the front lower fixing rod are all located between the left front frame rod, the right front frame rod 211, the front upper frame rod 213, and the front lower frame rod 216, and are respectively connected to the left front frame rod, the right front frame rod 211, the front upper frame rod 213, and the front lower frame rod 216.

[0053] The front left fixing rod, the front right fixing rod, the front upper fixing rod, and the front lower fixing rod can be rods of any suitable material. In a specific embodiment of this utility model, the front left fixing rod, the front right fixing rod, the front upper fixing rod, and the front lower fixing rod are all steel reinforcement fixing rods.

[0054] The diameters of the front left fixing rod, the front right fixing rod, the front upper fixing rod, and the front lower fixing rod can be determined as needed. In a specific embodiment of this utility model, the diameters of the front left fixing rod, the front right fixing rod, the front upper fixing rod, and the front lower fixing rod are all 10mm.

[0055] The pre-filter can be made of any suitable material. In one specific embodiment of this utility model, the pre-filter is a galvanized steel wire mesh.

[0056] The mesh size of the pre-filter can be determined as needed. In a specific embodiment of this utility model, the length and width of the mesh of the pre-filter are both 10mm.

[0057] The rear flat plate water-solid separator can have any suitable configuration. In a specific embodiment of this utility model, the rear flat plate water-solid separator includes a rear left fixing rod, a rear right fixing rod, a rear upper fixing rod, a rear lower fixing rod, and a rear filter screen. The rear left and rear right fixing rods are both vertically arranged and spaced apart from each other on the left and right sides. The rear upper and rear lower fixing rods are both horizontally arranged and positioned in the left-right direction and spaced apart from each other on the top and bottom. The rear upper fixing rod is located between the upper ends of the rear left and rear right fixing rods and connects the upper ends of the rear left and rear right fixing rods respectively. The lower rear fixing rod is located between the lower ends of the left rear fixing rod and the right rear fixing rod, and connects the lower ends of the left rear fixing rod and the right rear fixing rod, respectively. The rear filter screen is vertically arranged and arranged along the left-right direction. The rear filter screen is located between the left rear fixing rod, the right rear fixing rod, the upper rear fixing rod, and the lower rear fixing rod, and connects the left rear fixing rod, the right rear fixing rod, the upper rear fixing rod, and the lower rear fixing rod, respectively. The left rear fixing rod, the right rear fixing rod, the upper rear fixing rod, and the lower rear fixing rod are all located in the rear side frame and are all connected to the rear side frame. In the case where the cuboid outer frame structure 21 includes a left front frame rod, a left rear frame rod, a right front frame rod 211, a right rear frame rod 212, a front upper frame rod 213, a rear upper frame rod 214, a left upper frame rod, a right upper frame rod 215, a front lower frame rod 216, a rear lower frame rod 217, a left lower frame rod 218, and a right lower frame rod 219, the rear left fixing rod, the rear right fixing rod, the rear upper fixing rod, and the rear lower fixing rod are all located between the left rear frame rod, the right rear frame rod 212, the rear upper frame rod 214, and the rear lower frame rod 217, and are respectively connected to the left rear frame rod, the right rear frame rod 212, the rear upper frame rod 214, and the rear lower frame rod 217.

[0058] The rear left fixing rod, the rear right fixing rod, the rear upper fixing rod, and the rear lower fixing rod can be rods of any suitable material. In a specific embodiment of this utility model, the rear left fixing rod, the rear right fixing rod, the rear upper fixing rod, and the rear lower fixing rod are all steel reinforcement fixing rods.

[0059] The diameters of the rear left fixing rod, the rear right fixing rod, the rear upper fixing rod, and the rear lower fixing rod can be determined as needed. In a specific embodiment of this utility model, the diameters of the rear left fixing rod, the rear right fixing rod, the rear upper fixing rod, and the rear lower fixing rod are all 10mm.

[0060] The post-filter can be made of any suitable material. In one specific embodiment of this utility model, the post-filter is a galvanized steel wire mesh.

[0061] The mesh size of the rear filter can be determined as needed. In a specific embodiment of this utility model, the length and width of the mesh of the rear filter are both 10mm.

[0062] The left flat plate water-solid separator can have any suitable configuration. In a specific embodiment of this utility model, the left flat plate water-solid separator includes a left front fixing rod, a left rear fixing rod, a left upper fixing rod, a left lower fixing rod, and a left filter screen. The left front fixing rod and the left rear fixing rod are both vertically arranged and spaced apart from each other. The left upper fixing rod and the left lower fixing rod are both horizontally arranged in the front-to-back direction and spaced apart from each other vertically. The left upper fixing rod is located between the upper ends of the left front fixing rod and the upper ends of the left rear fixing rod and connects the upper ends of the left front fixing rod and the upper ends of the left rear fixing rod, respectively. The lower left fixing rod is located between the lower ends of the left front fixing rod and the lower ends of the left rear fixing rod, and is connected to the lower ends of the left front fixing rod and the lower ends of the left rear fixing rod, respectively. The left filter screen is vertically arranged and arranged along the front-to-back direction. The left filter screen is located between the left front fixing rod, the left rear fixing rod, the left upper fixing rod and the left lower fixing rod, and is connected to the left front fixing rod, the left rear fixing rod, the left upper fixing rod and the left lower fixing rod, respectively. The left front fixing rod, the left rear fixing rod, the left upper fixing rod and the left lower fixing rod are all located in the left side frame and are all connected to the left side frame. In the case where the cuboid outer frame structure 21 includes a left front frame rod, a left rear frame rod, a right front frame rod 211, a right rear frame rod 212, a front upper frame rod 213, a rear upper frame rod 214, a left upper frame rod, a right upper frame rod 215, a front lower frame rod 216, a rear lower frame rod 217, a left lower frame rod 218, and a right lower frame rod 219, the left front fixing rod, the left rear fixing rod, the left upper fixing rod, and the left lower fixing rod are all located between the left front frame rod, the left rear frame rod, the left upper frame rod, and the left lower frame rod 218 and are respectively connected to the left front frame rod, the left rear frame rod, the left upper frame rod, and the left lower frame rod 218.

[0063] The left front fixing rod, the left rear fixing rod, the left upper fixing rod, and the left lower fixing rod can be rods made of any suitable material. In a specific embodiment of this utility model, the left front fixing rod, the left rear fixing rod, the left upper fixing rod, and the left lower fixing rod are all steel reinforcement fixing rods.

[0064] The diameters of the left front fixing rod, the left rear fixing rod, the upper left fixing rod, and the lower left fixing rod can be determined as needed. In a specific embodiment of this utility model, the diameters of the left front fixing rod, the left rear fixing rod, the upper left fixing rod, and the lower left fixing rod are all 10mm.

[0065] The left filter screen can be made of any suitable material. In one specific embodiment of this utility model, the left filter screen is a galvanized steel wire mesh.

[0066] The mesh size of the left filter can be determined as needed. In a specific embodiment of this utility model, the length and width of the mesh of the left filter are both 10mm.

[0067] The right-side flat water-solid separation plate 22 can have any suitable configuration; please refer to [link / reference]. Figure 2As shown, in a specific embodiment of this utility model, the right flat water-material separation plate 22 includes a right front fixing rod 221, a right rear fixing rod 222, a right upper fixing rod 223, a right lower fixing rod 224, and a right filter screen 225. The right front fixing rod 221 and the right rear fixing rod 222 are both vertically arranged and spaced apart from each other. The right upper fixing rod 223 and the right lower fixing rod 224 are both horizontally arranged and spaced apart from each other. The right upper fixing rod 223 is located between the upper ends of the right front fixing rod 221 and the right rear fixing rod 222, and connects the upper ends of the right front fixing rod 221 and the right rear fixing rod 222, respectively. The right lower fixing rod 224 is located between the right front fixing rod 221 and the right rear fixing rod 222. The lower end of the fixed rod 221 and the lower end of the right rear fixed rod 222 are connected to the lower ends of the right front fixed rod 221 and the right rear fixed rod 222, respectively. The right filter screen 225 is vertically arranged and arranged along the front-back direction. The right filter screen 225 is located between the right front fixed rod 221, the right rear fixed rod 222, the right upper fixed rod 223 and the right lower fixed rod 224, and is connected to the right front fixed rod 221, the right rear fixed rod 222, the right upper fixed rod 223 and the right lower fixed rod 224, respectively. The right front fixed rod 221, the right rear fixed rod 222, the right upper fixed rod 223 and the right lower fixed rod 224 are all located in the right side frame and are all connected to the right side frame. In the case where the cuboid outer frame structure 21 includes a left front frame rod, a left rear frame rod, a right front frame rod 211, a right rear frame rod 212, a front upper frame rod 213, a rear upper frame rod 214, a left upper frame rod, a right upper frame rod 215, a front lower frame rod 216, a rear lower frame rod 217, a left lower frame rod 218, and a right lower frame rod 219, the right front fixing rod 221, the right rear fixing rod 222, the right upper fixing rod 223, and the right lower fixing rod 224 are all located between the right front frame rod 211, the right rear frame rod 212, the right upper frame rod 215, and the right lower frame rod 219, and are respectively connected to the right front frame rod 211, the right rear frame rod 212, the right upper frame rod 215, and the right lower frame rod 219.

[0068] The right front fixing rod 221, the right rear fixing rod 222, the right upper fixing rod 223, and the right lower fixing rod 224 can be rods of any suitable material. In a specific embodiment of this utility model, the right front fixing rod 221, the right rear fixing rod 222, the right upper fixing rod 223, and the right lower fixing rod 224 are all steel reinforcement fixing rods.

[0069] The diameters of the right front fixing rod 221, the right rear fixing rod 222, the right upper fixing rod 223, and the right lower fixing rod 224 can be determined as needed. In a specific embodiment of this utility model, the diameters of the right front fixing rod 221, the right rear fixing rod 222, the right upper fixing rod 223, and the right lower fixing rod 224 are all 10mm.

[0070] The right filter 225 can be any suitable material. In one specific embodiment of this utility model, the right filter 225 is a galvanized steel wire mesh.

[0071] The mesh size of the right filter 225 can be determined as needed. In a specific embodiment of this utility model, the length and width of the mesh of the right filter 225 are both 10mm.

[0072] The conical water-material separation plate 23 can have any suitable configuration; please refer to [link / reference]. Figures 2-3 As shown, in a specific embodiment of this utility model, the conical water-material separation plate 23 includes a bottom front fixing rod 231, a bottom rear fixing rod 232, a bottom left fixing rod 233, a bottom right fixing rod 234, a bottom top fixing rod 235, a left front inclined rod 236, a left rear inclined rod 237, a right front inclined rod 238, a right rear inclined rod 239, a front inclined filter screen 240, a rear inclined filter screen 241, a left inclined filter screen 242, and a right inclined filter screen 243, wherein:

[0073] The front bottom fixing rod 231 and the rear bottom fixing rod 232 are both horizontally arranged and positioned in the left-right direction, with spacing between them. The left bottom fixing rod 233 and the right bottom fixing rod 234 are both horizontally arranged and positioned in the front-back direction, with spacing between them. The left bottom fixing rod 233 is located between the left ends of the front bottom fixing rod 231 and the rear bottom fixing rod 232, and connects the left ends of the front bottom fixing rod 231 and the rear bottom fixing rod 232, respectively. The right bottom fixing rod 234 is located between the right ends of the front bottom fixing rod 231 and the rear bottom fixing rod 232, and connects the right ends of the front bottom fixing rod 231 and the rear bottom fixing rod 232, respectively. The top bottom fixing rod 235 is horizontally arranged along the left-right direction and is located between the front bottom fixing rod 231, the rear bottom fixing rod 232, the left bottom fixing rod 233, and the right bottom fixing rod 234. Above the center position, the left front diagonal rod 236 is located between the left end of the bottom front fixing rod 231 and the left end of the bottom upper fixing rod 235, and connects the left ends of the bottom front fixing rod 231 and the bottom upper fixing rod 235 respectively. The left rear diagonal rod 237 is located between the left end of the bottom rear fixing rod 232 and the left end of the bottom upper fixing rod 235, and connects the left ends of the bottom rear fixing rod 232 and the bottom upper fixing rod 235 respectively. At the left end of 5, the right front diagonal rod 238 is located between the right end of the bottom front fixing rod 231 and the right end of the bottom upper fixing rod 235 and connects the right end of the bottom front fixing rod 231 and the right end of the bottom upper fixing rod 235 respectively; the right rear diagonal rod 239 is located between the right end of the bottom rear fixing rod 232 and the right end of the bottom upper fixing rod 235 and connects the right end of the bottom rear fixing rod 232 and the right end of the bottom upper fixing rod 235 respectively.

[0074] The front inclined filter 240 is arranged along the left-right direction and inclined upwards and backwards in the front-to-back direction. The front inclined filter 240 is located between the left front inclined rod 236, the right front inclined rod 238, the bottom front fixing rod 231, and the bottom upper fixing rod 235, and is connected to the left front inclined rod 236, the right front inclined rod 238, the bottom front fixing rod 231, and the bottom upper fixing rod 235 respectively. The rear inclined filter 241 is arranged along the left-right direction and inclined upwards and backwards in the back-to-front direction. The rear inclined filter 241 is located between the left rear inclined rod 237, the right rear inclined rod 239, the bottom rear fixing rod 232, and the bottom upper fixing rod 235, and is connected to the left rear inclined rod 237, the right rear inclined rod 239, the bottom rear fixing rod 232, and the bottom upper fixing rod 235 respectively. The left inclined filter 24... 2. The filter screen 242 is arranged along the front-back direction and tilted upwards and to the right from left to right. The left tilted filter screen 242 is located between the left front inclined rod 236, the left rear inclined rod 237 and the bottom left fixed rod 233 and is connected to the left front inclined rod 236, the left rear inclined rod 237 and the bottom left fixed rod 233 respectively. The filter screen 243 is arranged along the front-back direction and tilted upwards and to the left from right to left. The right tilted filter screen 243 is located between the right front inclined rod 238, the right rear inclined rod 239 and the bottom right fixed rod 234 and is connected to the right front inclined rod 238, the right rear inclined rod 239 and the bottom right fixed rod 234 respectively. The bottom front fixed rod 231, the bottom rear fixed rod 232, the bottom left fixed rod 233 and the bottom right fixed rod 234 are all located in the bottom frame and are all connected to the bottom frame.

[0075] In the case where the cuboid outer frame structure 21 includes a left front frame rod, a left rear frame rod, a right front frame rod 211, a right rear frame rod 212, a front upper frame rod 213, a rear upper frame rod 214, a left upper frame rod, a right upper frame rod 215, a front lower frame rod 216, a rear lower frame rod 217, a left lower frame rod 218, and a right lower frame rod 219, the bottom front fixing rod 231, the bottom rear fixing rod 232, the bottom left fixing rod 233, and the bottom right fixing rod 234 are all located between the front lower frame rod 216, the rear lower frame rod 217, the left lower frame rod 218, and the right lower frame rod 219, and are respectively connected to the front lower frame rod 216, the rear lower frame rod 217, the left lower frame rod 218, and the right lower frame rod 219.

[0076] The bottom front fixing rod 231, bottom rear fixing rod 232, bottom left fixing rod 233, bottom right fixing rod 234, and bottom top fixing rod 235 can be rods of any suitable material. In a specific embodiment of this utility model, the bottom front fixing rod 231, bottom rear fixing rod 232, bottom left fixing rod 233, bottom right fixing rod 234, and bottom top fixing rod 235 are all steel reinforcement fixing rods.

[0077] The diameters of the front bottom fixing rod 231, the rear bottom fixing rod 232, the left bottom fixing rod 233, the right bottom fixing rod 234, and the top bottom fixing rod 235 can be determined as needed. In a specific embodiment of this utility model, the diameters of the front bottom fixing rod 231, the rear bottom fixing rod 232, the left bottom fixing rod 233, the right bottom fixing rod 234, and the top bottom fixing rod 235 are all 10mm.

[0078] The left front diagonal bar 236, the left rear diagonal bar 237, the right front diagonal bar 238, and the right rear diagonal bar 239 can be bars of any suitable material. In a specific embodiment of this utility model, the left front diagonal bar 236, the left rear diagonal bar 237, the right front diagonal bar 238, and the right rear diagonal bar 239 are all steel bar diagonal bars.

[0079] The diameters of the left front diagonal bar 236, the left rear diagonal bar 237, the right front diagonal bar 238, and the right rear diagonal bar 239 can be determined as needed. In a specific embodiment of this utility model, the diameters of the left front diagonal bar 236, the left rear diagonal bar 237, the right front diagonal bar 238, and the right rear diagonal bar 239 are all 10mm.

[0080] The front-tilted filter 240, the rear-tilted filter 241, the left-tilted filter 242, and the right-tilted filter 243 can be filters made of any suitable material. In a specific embodiment of this utility model, the front-tilted filter 240, the rear-tilted filter 241, the left-tilted filter 242, and the right-tilted filter 243 are all galvanized steel wire mesh.

[0081] The mesh sizes of the forward-tilted filter 240, the backward-tilted filter 241, the left-tilted filter 242, and the right-tilted filter 243 can be determined as needed. In a specific embodiment of this utility model, the length and width of the mesh of the forward-tilted filter 240, the backward-tilted filter 241, the left-tilted filter 242, and the right-tilted filter 243 are all 10mm.

[0082] The slopes of the forward-tilted filter 240, the rear-tilted filter 241, the left-tilted filter 242, and the right-tilted filter 243 can be determined as needed. In a specific embodiment of this utility model, the slopes of the forward-tilted filter 240, the rear-tilted filter 241, the left-tilted filter 242, and the right-tilted filter 243 are all 20%.

[0083] The front flat-plate water-material separation plate and the rear flat-plate water-material separation plate are respectively disposed in the front frame and the rear frame of the cuboid outer frame structure 21. The left flat-plate water-material separation plate and the right flat-plate water-material separation plate 22 are respectively disposed in the left frame and the right frame of the cuboid outer frame structure 21. The conical water-material separation plate 23 is disposed in the bottom frame of the cuboid outer frame structure 21. They can be fixedly connected or detachably connected. In a specific embodiment of this utility model, the front flat-plate water-material separation plate, the rear flat-plate water-material separation plate, the left flat-plate water-material separation plate, the right flat-plate water-material separation plate 22, and the conical water-material separation plate 23 are detachably connected to the front frame, the rear frame, the left frame, the right frame, and the bottom frame, respectively.The rectangular frame structure 21 includes a left front frame rod, a left rear frame rod, a right front frame rod 211, a right rear frame rod 212, a front upper frame rod 213, a rear upper frame rod 214, a left upper frame rod, a right upper frame rod 215, a front lower frame rod 216, a rear lower frame rod 217, a left lower frame rod 218, and a right lower frame rod 219. The front flat plate water-solid separation plate includes a front left fixed rod, a front right fixed rod, a front upper fixed rod, a front lower fixed rod, and a front filter screen. The rear flat plate water-solid separation plate includes a rear left fixed rod, a rear right fixed rod, a rear upper fixed rod, a rear lower fixed rod, and a rear filter screen. The left flat plate water-solid separation plate includes a left front fixed rod. The left rear fixing rod, left upper fixing rod, left lower fixing rod, and left filter screen; the right flat water-material separation plate 22 includes a right front fixing rod 221, right rear fixing rod 222, right upper fixing rod 223, right lower fixing rod 224, and right filter screen 225; and the conical water-material separation plate 23 includes a bottom front fixing rod 231, bottom rear fixing rod 232, bottom left fixing rod 233, bottom right fixing rod 234, bottom upper fixing rod 235, left front inclined rod 236, left rear inclined rod 237, right front inclined rod 238, right rear inclined rod 239, front inclined filter screen 240, rear inclined filter screen 241, left inclined filter screen 242, and right inclined filter screen 245. In the case of the inclined filter screen 243, the front left fixing rod, the front right fixing rod, the front upper fixing rod, and the front lower fixing rod are detachably connected to the left front frame rod, the right front frame rod 211, the front upper frame rod 213, and the front lower frame rod 216, respectively. The rear left fixing rod, the rear right fixing rod, the rear upper fixing rod, and the rear lower fixing rod are detachably connected to the left rear frame rod, the right rear frame rod 212, the rear upper frame rod 214, and the rear lower frame rod 217, respectively. The left front fixing rod, the left rear fixing rod, the left upper fixing rod, and the left lower fixing rod are detachably connected to the left front frame rod. The rod, the left rear frame rod, the left upper frame rod, and the left lower frame rod 218, the right front fixing rod 221, the right rear fixing rod 222, the right upper fixing rod 223, and the right lower fixing rod 224 are respectively detachably connected to the right front frame rod 211, the right rear frame rod 212, the right upper frame rod 215, and the rear lower frame rod 217, and the bottom front fixing rod 231, the bottom rear fixing rod 232, the bottom left fixing rod 233, and the bottom right fixing rod 234 are respectively detachably connected to the front lower frame rod 216, the rear lower frame rod 217, the left lower frame rod 218, and the right lower frame rod 219.

[0084] The front flat water-material separation plate, the rear flat water-material separation plate, the left flat water-material separation plate, the right flat water-material separation plate 22, and the conical water-material separation plate 23 are detachably connected to the front frame, the rear frame, the left frame, the right frame, and the bottom frame, respectively. They can adopt any suitable structure. In a specific embodiment of this utility model, the front flat water-material separation plate, the rear flat water-material separation plate, the left flat water-material separation plate, the right flat water-material separation plate 22, and the conical water-material separation plate 23 are respectively snapped to connect to the front frame, the rear frame, the left frame, the right frame, and the bottom frame.

[0085] The front flat water-solid separation plate, the rear flat water-solid separation plate, the left flat water-solid separation plate, the right flat water-solid separation plate 22, and the conical water-solid separation plate 23 are respectively snapped together to connect the front side frame, the rear side frame, the left side frame, the right side frame, and the bottom frame. Any suitable structure can be used; please refer to [link / reference]. Figure 2 As shown, in a specific embodiment of this utility model, the water-solid separation device 2 further includes a retaining ring 26. The front flat water-solid separation plate, the rear flat water-solid separation plate, the left flat water-solid separation plate, the right flat water-solid separation plate 22, and the conical water-solid separation plate 23 are respectively connected to the front frame, the rear frame, the left frame, the right frame, and the bottom frame by the retaining ring 26.

[0086] The retaining ring 26 can be a retaining ring made of any suitable material. In a specific embodiment of this utility model, the retaining ring 26 is a steel bar retaining ring.

[0087] The filter hole 11 can have any suitable shape, please refer to Figure 1 As shown, in a specific embodiment of this utility model, the filter hole 11 is an elongated hole, which extends along the left-right direction.

[0088] The number of filter holes 11 can be determined as needed; "multiple" refers to two or more. Please refer to [link to relevant documentation]. Figure 1 As shown, in a specific embodiment of this utility model, the number of filter holes 11 is 27, and the 27 filter holes 11 are arranged in a 9x3 matrix.

[0089] In use, the rectangular outer frame structure 21 of the water-material separation device 2 is inserted into the sewer opening 3. The left flange, right flange, front flange 24 and rear flange 25 of the top frame of the rectangular outer frame structure 21 all abut against the four edges of the sewer opening 3, thereby hanging the water-material separation device 2 on the sewer opening 3. Then, the rain grate 1 is covered to form a device that can ensure the drainage volume, filter debris for a second time, and clean itself automatically.

[0090] During drainage, water and debris first undergo initial filtration through the filter holes 11 of the rainwater grate 1. Then, as the rainwater and debris continue to flow downwards, they undergo secondary filtration through the water-material separation device 2, achieving a fine filtration effect. Simultaneously, by optimizing the structure of the water-material separation plate, the bottom water-material separation plate 23 of the water-material separation device 2 adopts a conical shape. This design, through its slope and the impact of the water flow, also provides self-cleaning and reduces clogging of the device itself. Using this invention ensures a large drainage area while significantly reducing pipe blockage and safety risks, lowering cleaning costs, and minimizing the negative impacts of resource waste.

[0091] Therefore, this invention can achieve secondary filtration of debris in rainwater and sewage, ensuring drainage flow while reducing blockage of sewers by garbage, leaves, and other debris. It is highly effective in reducing pipe blockage and surface water accumulation. Furthermore, by optimizing the structure of the water-material separation device, it possesses a self-cleaning function. If a detachable connection is used, the filter screen can be adjusted and replaced according to rainfall volume to meet different flow rate requirements. This invention is simple to install and disassemble, easy to maintain, and uses readily available materials. Using this invention can significantly reduce the risk of pipe blockage and maintenance costs, and minimize the adverse effects of safety hazards and resource waste.

[0092] In summary, the self-cleaning rainwater grate water-material separation device of this utility model can ensure the drainage flow rate, reduce the blockage of sewers by garbage, leaves and other debris, and has a self-cleaning function. It is easy to use, has low maintenance costs, and is suitable for large-scale promotion and application.

[0093] Therefore, it is evident that the objective of this utility model has been fully and effectively achieved. The function and structural principles of this utility model have been demonstrated and explained in the embodiments. Without departing from the stated principles, any modifications can be made to the implementation methods. Therefore, this utility model includes all modified embodiments based on the spirit and scope of the claims.

Claims

1. A self-cleaning rainwater grate water-material separation device, comprising a rainwater grate and a water-material separation unit, wherein the rainwater grate is horizontally arranged along the left-right direction, and the rainwater grate is vertically provided with multiple filter holes, the multiple filter holes being horizontally spaced apart from each other, characterized in that, The water-solid separation device includes a rectangular frame structure, a front flat water-solid separation plate, a rear flat water-solid separation plate, a left flat water-solid separation plate, a right flat water-solid separation plate, and a conical water-solid separation plate, wherein: The cuboid outer frame structure is vertically arranged and along the left-right direction. The front flat water-material separation plate and the rear flat water-material separation plate are both vertically arranged and along the left-right direction, and are spaced apart from each other. The front flat water-material separation plate and the rear flat water-material separation plate are respectively arranged in the front and rear frames of the cuboid outer frame structure. The left flat water-material separation plate and the right flat water-material separation plate are both vertically arranged and along the front-back direction, and are spaced apart from each other. The left flat water-material separation plate and the right flat water-material separation plate are respectively arranged in the left and right frames of the cuboid outer frame structure. The conical water-material separation plate is arranged in the bottom frame of the cuboid outer frame structure and extends upward from the bottom frame towards the center at an incline. The top frame of the cuboid outer frame structure has a vertical opening. The left and right ends of the top frame extend to the left and right respectively to form a left flange and a right flange. The front and rear sides of the top frame extend to the front and rear respectively to form a front flange and a rear flange. The rain grate abuts against the top frame, the left flange, the right flange, the front flange, and the rear flange. The plurality of filter holes are located above the opening.

2. The self-cleaning rainwater grate water-material separation device as described in claim 1, characterized in that, The rectangular frame structure includes a left front frame rod, a left rear frame rod, a right front frame rod, a right rear frame rod, a front upper frame rod, a rear upper frame rod, a left upper frame rod, a right upper frame rod, a front lower frame rod, a rear lower frame rod, a left lower frame rod, and a right lower frame rod, wherein: The left front frame rod, the left rear frame rod, the right front frame rod, and the right rear frame rod are all vertically arranged. The left front frame rod, the left rear frame rod, the right front frame rod, and the right rear frame rod are all spaced apart from each other in front and behind. The left front frame rod, the right front frame rod, the left rear frame rod, and the right rear frame rod are all spaced apart from each other in the left and right. The front upper frame rod and the rear upper frame rod are both horizontally arranged and along the left-right direction, and are spaced apart from each other. The front upper frame rod is located between the upper ends of the left front frame rod and the right front frame rod, and connects the upper ends of the left front frame rod and the right front frame rod respectively. The rear upper frame rod is located between the upper ends of the left rear frame rod and the right rear frame rod, and connects the upper ends of the left rear frame rod and the right rear frame rod respectively. The left upper frame rod and the right upper frame rod are both horizontally arranged and along the front-back direction, and are spaced apart from each other. The left upper frame rod is located between the upper ends of the left front frame rod and the left rear frame rod, and connects the upper ends of the left front frame rod and the left rear frame rod respectively. The right upper frame rod is located between the upper ends of the right front frame rod and the right rear frame rod, and connects the upper ends of the right front frame rod and the right rear frame rod respectively. Both the front lower frame rod and the rear lower frame rod are horizontally arranged and along the left-right direction, and are spaced apart from each other. The front lower frame rod is located between the lower ends of the left front frame rod and the right front frame rod, and connects to the lower ends of the left front frame rod and the right front frame rod, respectively. The rear lower frame rod is located between the lower ends of the left rear frame rod and the right rear frame rod, and connects to the lower ends of the left rear frame rod and the right rear frame rod, respectively. Both the left lower frame rod and the right lower frame rod are horizontally arranged and along the front-back direction, and are spaced apart from each other. The left lower frame rod is located between the lower ends of the left front frame rod and the left rear frame rod, and connects to the lower ends of the left front frame rod and the left rear frame rod, respectively. The right lower frame rod is located between the lower ends of the right front frame rod and the right rear frame rod, and connects to the lower ends of the right front frame rod and the right rear frame rod, respectively. The front flat-plate water-solid separation plate is located between the left front frame rod, the right front frame rod, the front upper frame rod, and the front lower frame rod, and is connected to the left front frame rod, the right front frame rod, the front upper frame rod, and the front lower frame rod, respectively. The rear flat-plate water-solid separation plate is located between the left rear frame rod, the right rear frame rod, the rear upper frame rod, and the rear lower frame rod, and is connected to the left rear frame rod, the right rear frame rod, the rear upper frame rod, and the rear lower frame rod, respectively. The left flat-plate water-solid separation plate is located between the left front frame rod, the left rear frame rod, the left upper frame rod, and the left lower frame rod, and is connected to the left front frame rod, the left rear frame rod, the left upper frame rod, and the left lower frame rod, respectively. The right flat-plate water-solid separation plate is located between the right front frame rod, the right rear frame rod, the left upper frame rod, and the left lower frame rod, respectively. The frame rod, the right rear frame rod, the right upper frame rod, and the right lower frame rod are connected to the right front frame rod, the right rear frame rod, the right upper frame rod, and the right lower frame rod respectively. The conical water-material separation plate is located between the front lower frame rod, the rear lower frame rod, the left lower frame rod, and the right lower frame rod and is connected to the front lower frame rod, the rear lower frame rod, the left lower frame rod, and the right lower frame rod respectively. The opening is located between the front upper frame rod, the rear upper frame rod, the left upper frame rod, and the right upper frame rod. The left flange extends to the left from the left upper frame rod, the right flange extends to the right from the right upper frame rod, the front flange extends forward from the front upper frame rod, and the rear flange extends backward from the rear upper frame rod.

3. The self-cleaning rainwater grate water-material separation device as described in claim 1, characterized in that, The front flat-plate water-material separation plate includes a front left fixed rod, a front right fixed rod, a front upper fixed rod, a front lower fixed rod, and a front filter screen. The front left and front right fixed rods are both vertically arranged and spaced apart from each other. The front upper and front lower fixed rods are both horizontally arranged and spaced apart from each other vertically. The front upper fixed rod is located between the upper ends of the front left and front right fixed rods and connects to the upper ends of both rods. The front lower fixed rod is located at the lower end of the front left fixed rod. The front filter is vertically arranged and positioned along the left-right direction. It is located between the lower ends of the front left, front right, front upper, and front lower fixed rods and is connected to the front left, front right, front upper, and front lower fixed rods respectively. The front left, front right, front upper, and front lower fixed rods are all located in the front side frame and are all connected to the front side frame.

4. The self-cleaning rainwater grate water-material separation device as described in claim 1, characterized in that, The rear flat-plate water-material separation plate includes a rear left fixing rod, a rear right fixing rod, a rear upper fixing rod, a rear lower fixing rod, and a rear filter screen. The rear left and rear right fixing rods are both vertically arranged and spaced apart from each other. The rear upper and rear lower fixing rods are both horizontally arranged in the left-right direction and spaced apart vertically. The rear upper fixing rod is located between the upper ends of the rear left and rear right fixing rods and connects to the upper ends of both rods. The rear lower fixing rod is located at the lower end of the rear left fixing rod. The rear filter screen is vertically arranged and arranged along the left-right direction. The rear filter screen is located between the rear left fixed rod, the rear right fixed rod, the rear upper fixed rod, and the rear lower fixed rod, and is connected to the rear left fixed rod, the rear right fixed rod, the rear upper fixed rod, and the rear lower fixed rod, respectively. The rear left fixed rod, the rear right fixed rod, the rear upper fixed rod, and the rear lower fixed rod are all located in the rear frame and are all connected to the rear frame.

5. The self-cleaning rainwater grate water-material separation device as described in claim 1, characterized in that, The left flat-plate water-material separation plate includes a left front fixing rod, a left rear fixing rod, a left upper fixing rod, a left lower fixing rod, and a left filter screen. The left front fixing rod and the left rear fixing rod are both vertically arranged and spaced apart from each other. The left upper fixing rod and the left lower fixing rod are both horizontally arranged in the front-to-back direction and spaced apart vertically. The left upper fixing rod is located between the upper ends of the left front fixing rod and the upper ends of the left rear fixing rod, and connects the upper ends of the left front fixing rod and the left rear fixing rod, respectively. The left lower fixing rod is located at the lower end of the left front fixing rod. The left filter screen is vertically arranged and arranged along the front-rear direction. The left filter screen is located between the left front fixed rod, the left rear fixed rod, the left upper fixed rod, and the left lower fixed rod, and is connected to the left front fixed rod, the left rear fixed rod, the left upper fixed rod, and the left lower fixed rod, respectively. The left front fixed rod, the left rear fixed rod, the left upper fixed rod, and the left lower fixed rod are all located in the left side frame and are all connected to the left side frame.

6. The self-cleaning rainwater grate water-material separation device as described in claim 1, characterized in that, The right-side flat-plate water-material separation plate includes a right front fixing rod, a right rear fixing rod, a right upper fixing rod, a right lower fixing rod, and a right filter screen. The right front and right rear fixing rods are both vertically positioned and spaced apart from each other. The right upper and right lower fixing rods are both horizontally positioned in the front-to-back direction and spaced apart vertically. The right upper fixing rod is located between the upper ends of the right front and right rear fixing rods and connects to both upper ends. The right lower fixing rod is located at the lower end of the right front fixing rod. The right filter screen is vertically arranged and arranged along the front-rear direction. The right filter screen is located between the lower end of the right front fixed rod, the right rear fixed rod, the upper right fixed rod, and the lower right fixed rod, and is connected to the right front fixed rod, the right rear fixed rod, the upper right fixed rod, and the lower right fixed rod, respectively. The right front fixed rod, the right rear fixed rod, the upper right fixed rod, and the lower right fixed rod are all located in the right side frame and are all connected to the right side frame.

7. The self-cleaning rainwater grate water-material separation device as described in claim 1, characterized in that, The conical water-material separation plate includes a front bottom fixing rod, a rear bottom fixing rod, a left bottom fixing rod, a right bottom fixing rod, an upper bottom fixing rod, a left front inclined rod, a left rear inclined rod, a right front inclined rod, a right rear inclined rod, a front inclined filter screen, a rear inclined filter screen, a left inclined filter screen, and a right inclined filter screen, wherein: The front and rear bottom fixing rods are both horizontally arranged and positioned in the left-right direction, spaced apart from each other front-to-back. The left and right bottom fixing rods are both horizontally arranged and positioned in the front-to-back direction, spaced apart from each other left-to-right. The left bottom fixing rod is located between the left ends of the front and rear bottom fixing rods and connects to the left ends of the front and rear bottom fixing rods, respectively. The right bottom fixing rod is located between the right ends of the front and rear bottom fixing rods and connects to the right ends of the front and rear bottom fixing rods, respectively. The top bottom fixing rod is horizontally arranged along the left-right direction and is located between the front, rear, left, and right bottom fixing rods. Above the center position between them, the left front diagonal bar is located between the left end of the bottom front fixed bar and the left end of the bottom upper fixed bar and connects the left end of the bottom front fixed bar and the left end of the bottom upper fixed bar respectively; the left rear diagonal bar is located between the left end of the bottom rear fixed bar and the left end of the bottom upper fixed bar and connects the left end of the bottom rear fixed bar and the left end of the bottom upper fixed bar respectively; the right front diagonal bar is located between the right end of the bottom front fixed bar and the right end of the bottom upper fixed bar and connects the right end of the bottom front fixed bar and the right end of the bottom upper fixed bar respectively; the right rear diagonal bar is located between the right end of the bottom rear fixed bar and the right end of the bottom upper fixed bar and connects the right end of the bottom rear fixed bar and the right end of the bottom upper fixed bar respectively. The front inclined filter is arranged along the left-right direction and inclined upwards and backwards from front to back. The front inclined filter is located between the left front inclined rod, the right front inclined rod, the bottom front fixed rod, and the bottom upper fixed rod, and is connected to the left front inclined rod, the right front inclined rod, the bottom front fixed rod, and the bottom upper fixed rod, respectively. The rear inclined filter is arranged along the left-right direction and inclined upwards and backwards from back to front. The rear inclined filter is located between the left rear inclined rod, the right rear inclined rod, the bottom rear fixed rod, and the bottom upper fixed rod, and is connected to the left rear inclined rod, the right rear inclined rod, the bottom rear fixed rod, and the bottom upper fixed rod, respectively. The left inclined filter is arranged along the left-right direction and inclined upwards and backwards from back to front. The filter is arranged in the front-to-back direction and tilted upwards and to the right from left to right. The left tilted filter is located between the left front inclined rod, the left rear inclined rod, and the bottom left fixed rod and is connected to the left front inclined rod, the left rear inclined rod, and the bottom left fixed rod, respectively. The right tilted filter is arranged in the front-to-back direction and tilted upwards and to the left from right to left. The right tilted filter is located between the right front inclined rod, the right rear inclined rod, and the bottom right fixed rod and is connected to the right front inclined rod, the right rear inclined rod, and the bottom right fixed rod, respectively. The bottom front fixed rod, the bottom rear fixed rod, the bottom left fixed rod, and the bottom right fixed rod are all located in the bottom frame and are all connected to the bottom frame.

8. The self-cleaning rainwater grate water-material separation device as described in claim 1, characterized in that, The front flat water-material separation plate, the rear flat water-material separation plate, the left flat water-material separation plate, the right flat water-material separation plate, and the conical water-material separation plate are detachably connected to the front frame, the rear frame, the left frame, the right frame, and the bottom frame, respectively.

9. The self-cleaning rainwater grate water-material separation device as described in claim 8, characterized in that, The front flat water-material separation plate, the rear flat water-material separation plate, the left flat water-material separation plate, the right flat water-material separation plate, and the conical water-material separation plate are respectively snapped into and connected to the front side frame, the rear side frame, the left side frame, the right side frame, and the bottom frame.

10. The self-cleaning rainwater grate water-material separation device as described in claim 9, characterized in that, The water-material separation device further includes retaining rings, and the front flat water-material separation plate, the rear flat water-material separation plate, the left flat water-material separation plate, the right flat water-material separation plate and the conical water-material separation plate are respectively connected to the front frame, the rear frame, the left frame, the right frame and the bottom frame by retaining rings.