Rainwater grate anti-overflow and anti-clogging in-situ reconstruction component

Abstract

The utility model relates to an overflow-preventing and anti-clogging in-situ transformation component for a rainwater grate. A component body comprises a flow guide groove and an anti-floating lock catch. Wherein each flow guide groove is a groove with two side wall surfaces and a bottom surface which are thin plates, the groove bottom surface of each flow guide groove is a downward folding surface type or an arc surface, the height of the side wall of each flow guide groove is from being flush with the top surface of the rainwater grate rib to being slightly lower than the bottom of the rainwater grate rib, the tops of the wall surfaces of the plurality of flow guide grooves are connected through a transverse plate, and the anti-floating lock catch is a thin plate with a convex lock catch piece at the bottom. The anti-floating lock catch is connected to the bottom face of the flow guide groove, the transverse plate stretches across a water inlet of the rainwater grate rib, and the component body clamps the rainwater grate rib through the anti-floating lock catch to be fixed. The overflow-preventing and anti-clogging in-situ transformation component of the rainwater grate can be directly arranged on the existing rainwater grate externally, the rainwater grate ribs are clamped through the anti-floating lock catches to be fixed, the component is installed on the existing rainwater grate in situ, good overflow-preventing and anti-clogging effects are achieved, investment is small, and installation is convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model belongs to drainage engineering technical field, especially relate to the rainwater grate of side ditch, cross ditch in road engineering on-site reconstruction, also applicable to the rainwater grate of rainwater well mouth in each place such as square. BACKGROUND

[0002] The definition of the leakage phenomenon: the leakage refers to the phenomenon that the water flow directly overflows the rainwater grate and does not enter the rainwater well. The leakage phenomenon is more serious especially under the following conditions: ① excessive water flow into the rainwater grate; ② the road slope is too steep, and the water flow rate cannot be reduced; ③ the rainwater grate opening rate is small, and the grate surface flow is obvious, and the drainage is insufficient.

[0003] The existing national standard type rainwater grate is provided with longitudinal and transverse ribs with a certain width, and through observation, even under light rain, the water flow on the surface of the longitudinal and transverse ribs also flows down along the grate surface. When the water quantity is larger, the observed grate surface flow is more obvious. The grate surface flow flowing through the rainwater grate range will cause the leakage phenomenon.

[0004] In recent years, news reports of serious waterlogging of urban roads affected by heavy rain are common. The municipal departments often lift the rainwater grate to drain the road water. However, the opened rainwater grate also brings traffic safety hazards and even causes life and property losses. In addition, during urban waterlogging, it is also difficult to mobilize enough manpower to lift enough rainwater grates for drainage. The rainwater grate does not enter water, and the blockage of water inflow becomes an important reason for the urban waterlogging problem. Therefore, it is necessary to improve the anti-leakage and anti-clogging ability of the existing rainwater grate to ensure the water inflow efficiency of the rainwater grate.

[0005] Therefore, it is necessary to research and solve the problem of realizing the anti-leakage and anti-clogging of the rainwater grate by using an economic and easy-to-operate method to ensure the water collection of the rainwater grate.

[0006] The existing rainwater grate does not consider the function of preventing the leakage of the rainwater grate. In the case of a steep road slope or high surface runoff flow rate under heavy rain working conditions, this type of rainwater grate has a serious leakage problem, and the actual water collection effect is poor. A large amount of rainwater leaks, causing road waterlogging and bringing great safety hazards.

[0007] The existing anti-leakage rainwater grate, such as "anti-leakage and anti-clogging rainwater grate (CN217175161U)", forms a new type of anti-leakage rainwater grate by optimizing the structure of the rainwater grate and setting a diversion slope at the water inlet of the rainwater grate. However, this patent needs a new type of rainwater grate to replace the existing rainwater grate, which requires large-scale replacement of a large number of existing rainwater grates, brings high investment, and causes waste of the original rainwater grate.

[0008] At present, urban waterlogging problem is more and more paid attention to, and the frequency of extreme rainstorm weather is higher and higher, and it is very necessary to realize the functions of rainwater grate anti-overflow and anti-clogging through on-site modification of traditional rainwater grate with little economic investment, so as to ensure that the road surface is not waterlogged in extreme rainstorm weather or large longitudinal slope. The utility model discloses the following contents:

[0009] The utility model discloses the following contents:

[0010] The utility model discloses the following contents:

[0011] The utility model discloses the following contents:

[0012] Wherein, the flow guide groove is the groove that both side wall surface and bottom surface are thin plate, the groove bottom surface of flow guide groove is the down folding surface type or arc surface, and the side wall height of flow guide groove is from the rainwater grate rib top surface flush to slightly bottom rainwater grate rib bottom, and the wall surface top of a plurality of flow guide grooves is connected through the horizontal plate, and the anti-floating lock buckle is the thin plate that sets up the outer convex lock buckle piece at the bottom, and the anti-floating lock buckle is connected at the groove bottom surface of flow guide groove, and the horizontal plate is across at the water inlet of rainwater grate rib, and the component main part is fixed through the anti-floating lock buckle clamping rainwater grate rib.

[0013] The utility model discloses the following contents:

[0014] Preferably, the component main part further includes a flow distribution plate, and the flow distribution plate is a thin plate provided with a convex fish mouth flow distribution island at an end of the horizontal plate.

[0015] Preferably, the flow distribution plate is arranged at a position consistent with a position of the rainwater grate rib to be modified on site, and has a width not less than a width of the rainwater grate rib.

[0016] Preferably, the anti-floating lock buckle is provided with two groups, and is connected with the highest and lowest positions of the groove bottom surface of the flow guide groove respectively, and a lock buckle position of the outer convex lock buckle piece is customized according to a height of a bottom of the rainwater grate rib to be modified on site.

[0017] The utility model discloses the following contents:

[0018] The rainwater grate anti-overflow and anti-clogging on-site modification component provided by the utility model can be directly externally arranged on an existing rainwater grate, and is fixed by clamping a rainwater grate rib through an anti-floating lock buckle, so that the component is installed on an existing rainwater grate on site, and a very good anti-overflow and anti-clogging effect is achieved, and the component has small investment and is convenient to install. DRAWINGS:

[0019] Figure 1 It is a top view schematic diagram of the rainwater grate anti-overflow and anti-clogging on-site modification component.

[0020] Figure 2 The figure is a front view of a just-in-place reconstruction component for preventing over-flow and anti-clogging of a rainwater grate.

[0021] Figure 3 The figure is a side view of a just-in-place reconstruction component for preventing over-flow and anti-clogging of a rainwater grate.

[0022] Figure 4 The figure is a top view of a just-in-place reconstruction component for preventing over-flow and anti-clogging of a rainwater grate.

[0023] Figure 5 The figure is a front view of a just-in-place reconstruction component for preventing over-flow and anti-clogging of a rainwater grate.

[0024] In the figure: 1 - flow guide groove, 2 - flow distribution plate, 3 - anti-floating lock, 4 - transverse plate, 5 - rainwater grate rib. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model is further described in detail below by combining with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not used to limit the utility model.

[0026] As Figures 1-5 A just-in-place reconstruction component for preventing over-flow and anti-clogging of a rainwater grate, the component main body comprises a flow guide groove 1 and an anti-floating lock 3.

[0027] The flow guide groove 1 is a groove with thin plate on both side walls and the bottom, the groove bottom of the flow guide groove 1 is a downward folded surface or an arc surface, the height of the side wall of the flow guide groove is from the top of the rainwater grate rib to slightly below the bottom of the rainwater grate rib 5, the top of the wall of a plurality of flow guide grooves 1 is connected through a transverse plate 4, the anti-floating lock 3 is a thin plate with an outwardly protruding lock piece at the bottom, the anti-floating lock 3 is connected to the groove bottom of the flow guide groove, the transverse plate 4 is across the water inlet of the rainwater grate rib 5, and the component main body is fixed by clamping the rainwater grate rib 5 through the anti-floating lock 3.

[0028] The component main body further comprises a flow distribution plate 2, which is a thin plate with a protruding fish mouth flow distribution island at the end of the transverse plate 4.

[0029] The flow distribution plate 2 is arranged at a position consistent with the position of the rainwater grate rib 5 to be reconstructed, and the width is not less than the width of the rainwater grate rib 5.

[0030] The anti-floating lock 3 is provided with two groups, which are connected to the highest and lowest parts of the groove bottom of the flow guide groove 1 respectively, and the lock position of the outwardly protruding lock piece is customized according to the height of the bottom of the rainwater grate to be reconstructed.

[0031] Example 1: After installing the rainwater grate anti-overflow anti-clogging on-site reconstruction component of 400mmx500mm rainwater grate, through indoor hydraulic test, under different longitudinal slope and water flow, the water collection percentage data are shown in the following table.

[0032]

[0033] Under the same conditions, 400mmx500mm rainwater grate, through indoor hydraulic test, under different longitudinal slope and water flow, the water collection percentage data are shown in the following table.

[0034]

[0035]

[0036] After installing the rainwater grate anti-overflow anti-clogging on-site reconstruction component of 400mmx500mm rainwater grate, through indoor hydraulic test, under different longitudinal slope and water flow, the water collection percentage is greatly increased compared with the water collection of the rainwater grate before installing the reconstruction component under the same conditions.

[0037] Example 2: After installing the reconstruction component of 400mmx700mm rainwater grate, through indoor hydraulic test, under different longitudinal slope and water flow, the water collection percentage data are shown in the following table.

[0038]

[0039] Under the same conditions, 400mmx700mm rainwater grate, through indoor hydraulic test, under different longitudinal slope and water flow, the water collection percentage data are shown in the following table.

[0040]

[0041] After installing the reconstruction component of 400mmx700mm rainwater grate, through indoor hydraulic test, under different longitudinal slope and water flow, the water collection percentage is greatly increased compared with the water collection of the rainwater grate before installing the reconstruction component under the same conditions.

[0042] Example 3: High-density polyethylene material and stainless steel material are respectively used to manufacture the rainwater grate anti-overflow anti-clogging on-site reconstruction component, which is installed on the 450mmx750mm national standard type rainwater grate by plug-in installation. The actual installation operation is simple, the component is long-term and firm after installation, and through the comparison test observation of light rain, moderate rain and heavy rain, the reconstruction components made of two kinds of materials have obvious anti-overflow effect. After installing the reconstruction component, fallen leaves and other floating objects are converged to the rainwater well under the scouring of rainwater, but avoid the inlet position and are pushed to the middle of the rainwater grate by the water flow. It can be observed that fallen leaves are retained in the inlet of the 450mmx750mm national standard type rainwater grate without installing the reconstruction component in the same section, and then the inlet is clogged.

[0043] In fact, the rainwater grate anti-overflow anti-clogging on-site reconstruction component in the embodiment of the present application can be made of high molecular materials, metal materials and other various possible materials, and can be applied to various water collecting gratings, etc., all of which belong to the protection scope of the present application.

[0044] Through field test verification, after installing the component, the flow pattern of the national standard type rainwater grate changes in the rain, the water inlet position is concentrated at the inlet, and the floating objects such as fallen leaves are subjected to the floating and pushing actions of the water flow at the anti-overflow anti-clogging on-site reconstruction component, and finally are concentrated in the middle of the rainwater grate, away from the water inlet, thereby effectively preventing clogging. Before installing the component, the water inlet position of the national standard type rainwater grate is dispersed, the overflow on the grate bar is obvious, and the phenomenon of clogging of floating objects such as fallen leaves at the water inlet is obvious.

[0045] In summary, the rainwater grate anti-overflow anti-clogging on-site reconstruction component has very good anti-overflow effect. Taking a 400mm*400mm rainwater grate as an example, even under the condition that the water flow is 20L / s and the longitudinal slope is 20%, the water collection amount can reach 90%, while under the same conditions, the water collection amount of the grate without installing the component is only 40.17%, and the water collection amount of the rainwater grate with the reconstruction component of the present application is increased by 49.83% compared with the original rainwater grate. Taking a 400mm*600mm rainwater grate as an example, even under the condition that the water flow is 20L / s and the longitudinal slope is 20%, the water collection amount can reach 94.69%, while under the same conditions, the water collection amount of the grate without installing the component is only 48.87%, and the water collection amount of the rainwater grate with the anti-overflow anti-clogging on-site reconstruction component is increased by 45.82%. The rainwater grate anti-overflow anti-clogging on-site reconstruction component has better anti-overflow effect under the condition of larger water flow or longitudinal slope, and is very suitable for urban waterlogging rainwater grate water collection improvement and large longitudinal slope road rainwater grate water collection improvement during heavy rain, and achieves the unexpected anti-overflow and anti-clogging effect.

[0046] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rainwater grate anti-overflow and anti-clogging on-site modification component, characterized in that, The main components include a flow guide channel and an anti-buoyancy lock. The guide channel is a channel with thin plates on both sides and the bottom. The bottom of the guide channel is a downward-facing folded or curved surface. The height of the guide channel side wall ranges from being flush with the top surface of the rain grate rib to slightly below the bottom of the rain grate rib. The top of the walls of several guide channels are connected by horizontal plates. The anti-buoyancy lock is a thin plate with an outwardly protruding lock at the bottom. The anti-buoyancy lock is connected to the bottom surface of the guide channel. The horizontal plate spans across the inlet of the rain grate rib. The main body of the component is fixed by clamping the rain grate rib with the anti-buoyancy lock.

2. The rainwater grate anti-overflow and anti-clogging on-site modification component according to claim 1, characterized in that, The main body of the component also includes a diversion plate, which is a thin plate with a protruding fish-mouth diversion island set at the end of the transverse plate.

3. The rainwater grate anti-overflow and anti-clogging on-site modification component according to claim 2, characterized in that, The diversion plate is positioned at the same location as the rainwater grate ribs to be modified on-site, and its width is not less than the width of the rainwater grate ribs.

4. The rainwater grate anti-overflow and anti-clogging on-site modification component according to claim 1, characterized in that, The anti-buoyancy latch is provided in two sets, which are respectively connected to the highest and lowest points of the bottom surface of the guide channel. The latch position of the protruding latch is customized according to the bottom height of the rainwater grate rib to be modified on-site.

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