Diversion structure for urban drainage

Abstract

The utility model discloses a diversion structure for urban drainage, which comprises a frame body used for being installed on a drainage well mouth, a well lid detachably arranged on the frame body and an anti-blocking assembly arranged in the frame body, the anti-blocking assembly comprises a flow channel and a filter screen detachably arranged in the flow channel, and a step higher than the filter screen is formed on the inner wall of the frame body on the periphery of the flow channel. A vertically-through drain opening is formed in the position, close to the edge of the frame body, of the outer side of the step. When flowing water cannot be timely drained from the filter screen and overflows to the step, the flowing water is drained from the drain opening. According to the utility model, on the premise of realizing the functions of filtering sundries and draining water in the existing structure, when water overflows due to the fact that water is difficult to drain in time at the position of the filtering and draining structure, diversion drainage can be carried out through the peripheral drain opening; the situation that the normal drainage performance is affected due to the fact that the impurity collecting structure is not cleaned for a long time can be avoided, or the situation that the drainage capacity is reduced when the precipitation amount is large is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of urban drainage, more particularly to a shunt structure for urban drainage. BACKGROUND

[0002] Drainage wells are arranged in order on both sides of urban roads to drain away rainwater and avoid road waterlogging when it rains. The well head is provided with a well cover with a leakage hole to prevent sundries from falling into the drainage well, but small sundries can still fall into the drainage well along with the water flow. In the prior art, in order to prevent sundries from accumulating and causing blockage of the sewer, a utility model patent with the patent number 202322273447.3 and the name of a flow control type well cover is designed to have multiple flow guide grooves and a detachable and replaceable anti-blocking component at the flow guide grooves, which further intercepts sundries on the basis of the function of shunting the water flow, achieving the effect of filtering and draining. However, in actual use, the maintenance and replacement of the anti-blocking component are not so frequent, and if there is a large accumulation of sundries or a large amount of rainfall, the drainage capacity will be greatly reduced, which may cause the corresponding drainage well to overflow with rainwater. SUMMARY

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a shunt structure for urban drainage, thereby solving the problem of overflow caused by the inability to normally drain water when sundries accumulate or the water volume is large.

[0004] The utility model provides the following technical scheme: a shunt structure for urban drainage, comprising a frame body for installation at the well head of a drainage well, a well cover detachably arranged on the frame body, and an anti-blocking component arranged in the frame body, wherein the anti-blocking component comprises a flow channel and a filter screen detachably arranged in the flow channel, the inner wall of the frame body forms a step higher than the filter screen at the outer periphery of the flow channel, and the outer side of the step near the edge of the frame body is provided with a water outlet penetrating upward and downward; when the water flow cannot be drained away in time from the filter screen and overflows to the step, the water flow is drained away from the water outlet.

[0005] As an improvement, the water outlet is provided with a turnover cover which opens downward to open the water outlet when a certain weight is borne.

[0006] As an improvement, the turnover shaft of the turnover cover is provided with an elastic member, and when the weight borne by the turnover cover is greater than the supporting force of the elastic member, the turnover cover opens downward to open the water outlet, and when the weight borne by the turnover cover is less than the supporting force of the elastic member, the elastic member resets the turnover cover to close the water outlet.

[0007] As an improvement, the flip cover is divided into an opening side and a counterweight side by a flip shaft. A weight is provided on the counterweight side. When the weight borne by the opening side of the flip cover is greater than the weight of the weight, the opening side opens downward to open the drain outlet. When the weight borne by the opening side is less than the weight of the weight, the flip cover resets and closes the drain outlet.

[0008] As an improvement, the flip cover is tilted, and the flip axis of the flip cover is located on the outside, with the outside of the flip cover being higher than the inside.

[0009] As an improvement, a drainage hole is provided in the middle of the manhole cover, the position of which corresponds to the flow channel below, and the outer solid part of the manhole cover corresponds to the drain outlet below.

[0010] The beneficial effects of this utility model are as follows: under the premise of achieving the functions of filtering debris and draining water in the existing structure, when the structure that filters and drains water is difficult to drain in time and water overflows, the water can be diverted and drained through the drain outlet on the periphery; it can avoid the situation where the debris collection structure is not cleaned for a long time and affects the normal drainage performance, or avoid the situation where the drainage capacity decreases during heavy rainfall. Attached Figure Description

[0011] Figure 1 This is a longitudinal sectional view of the present invention.

[0012] Figure 2 This is a partial longitudinal sectional view of the first embodiment of the flip cover of this utility model.

[0013] Figure 3 This is a partial longitudinal sectional view of the second embodiment of the flip-top cover of this utility model.

[0014] Figure 4 This is a top-view cross-sectional view of the present invention. Detailed Implementation

[0015] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0016] like Figure 1 , 2 Figures 3 and 4 show specific embodiments of the diversion structure of this utility model for urban drainage. This embodiment includes a frame 1 for installation at the drainage wellhead, a manhole cover 2 detachably mounted on the frame 1, and an anti-clogging component 3 disposed within the frame 1. The anti-clogging component 3 includes a flow channel 31 and a filter screen 32 detachably mounted in the flow channel 31. The inner wall of the frame 1 forms a step 11 at the outer periphery of the flow channel 31 that is higher than the filter screen 32. A drain outlet 12 that runs vertically through the outer side of the step 11 near the edge of the frame 1 is provided. When the water cannot be drained from the filter screen 32 in time and overflows to the step 11, the water is drained from the drain outlet 12.

[0017] The utility model discloses a frame body 1 is installed to the drainage well mouth, and the frame body 1 is rectangular body, and the inside is through -going, is used for the further structure's setting and drainage. The upper opening of frame body 1 sets a circle groove body to detachable place well lid 2, and it is convenient for maintenance personnel to open and place the limit well lid 2 from the periphery. Frame body 1 inside sets up several anti -blocking assemblies 3 according to different specifications in parallel, and the flow channel 31 of several anti -blocking assemblies 3 is used to water to go down and drain away, and the filter screen 32 is set up in the flow channel 31, and the filter screen 32 can be set as the basket shape in the prior art, and then has certain sundry carrying capacity, and the basket outside is limited to the clamping piece on the inner wall of flow channel 31, and can be taken down and cleaned and replaced as the prior art. When sundry accumulates or encounters larger rainfall, the drainage capacity at flow channel 31 can be seriously affected, and then the drainage well with filtering function can more likely appear water full overflow, and then cause the full water of road. As the improvement innovation of structure, further set up the water outlet 12 of periphery, and under normal circumstances, water flow will fall to the middle area after passing the leakage hole 21 of well lid 2, that is, the position of several anti -blocking assemblies 3, and sundry and water flow will reach the filter screen 32 and complete filtration and water drain, when the drainage difficulty condition appears, water will first fill from the flow channel 31, and water can flow to the water outlet 12 to the periphery after filling on the step 11, and the water outlet 12 is the ordinary through channel, and then realizes the quick drainage function. The setting position of water outlet 12 can be set to the periphery of frame body 1 structure, and under normal circumstances, sundry and water flow will not reach, and the setting number can correspond to the number of anti -blocking assemblies 3 and set on the periphery position, or set a strip-shaped mouth (such as Figure 3 The step 11 can be set as the small slope to anti -blocking assembly 3, and then when sundry or water flow falls to the step 11 in ordinary times can rely on the slope and make water flow drive sundry to fall to the flow channel 31, and when full water, water can overcome the slope and drain to the water outlet 12.

[0018] As an improved specific embodiment, the water outlet 12 is provided with a turnover cover 13, which is opened downward to open the water outlet 12 when a certain weight is borne.

[0019] As Figure 2 , 3As shown, to prevent lightweight debris from falling into the frame 1 and then onto the drain outlet 12 during daily use, which could lead to blockage of the drain outlet 12 due to long-term accumulation, or to prevent unfiltered debris from causing blockage of subsequent pipelines, a flip cover 13 is further provided. The flip cover 13 is designed to open only when a certain amount of weight is applied, thus ensuring that lightweight debris or a small amount of water cannot be pushed down to open the flip cover 13. The debris and water can be flushed down the steps 11 and fall into the flow channel 31 by the water flow over a certain period of time. When water overflows the flow channel 31, the weight of the water will press against the flip cover 13. When the weight exceeds the weight that the flip cover 13 can bear, the flip cover 13 opens downward to open the drain outlet 12 for effective and rapid drainage. After the water is drained and the pressure is released, the flip cover 13 can return to its original position and close the drain outlet 12.

[0020] As an improved specific implementation, an elastic element 15 is provided at the flipping shaft 14 of the flipping cover 13. When the weight borne by the flipping cover 13 is greater than the supporting force of the elastic element 15, the flipping cover 13 opens downward to open the drain outlet 12. When the weight borne by the flipping cover 13 is less than the supporting force of the elastic element 15, the elastic element 15 causes the flipping cover 13 to reset and close the drain outlet 12.

[0021] like Figure 2 As shown, in the first embodiment, the initial position of the flip cover 13 is limited by the elastic element 15, thereby closing the drain outlet 12. The elastic element 15 is preferably a torsion spring provided at the flip shaft 14. When the weight of the water presses the flip cover 13 to exceed the bearing capacity of the torsion spring, the flip cover 13 opens downward to open the drain outlet 12 for effective and rapid drainage. The torsion spring also accumulates elastic force due to the rotation of the flip cover 13. When the water is drained and the pressure is released, the elastic restoring force of the torsion spring can cause the flip cover 13 to reset and close the drain outlet 12.

[0022] As an improved specific implementation, the flip cover 13 is divided into an opening side 131 and a counterweight side 132 by the flip shaft 14. The counterweight side 132 is provided with a weight. When the weight borne by the opening side 131 of the flip cover 13 is greater than the weight of the weight, the opening side 131 opens downward to open the drain outlet 12. When the weight borne by the opening side 131 is less than the weight of the weight, the flip cover 13 resets and closes the drain outlet 12.

[0023] like Figure 3 As shown, in the second embodiment, the initial position of the flip cover 13 is limited by the weight on the counterweight side 132, thereby closing the drain outlet 12. When the weight of the water presses down on the opening side 131 and exceeds the weight of the counterweight, the opening side 131 flips around the flip shaft 14 to open the drain outlet 12 for effective and rapid drainage. After the water is drained and the pressure is released, the counterweight can press down on the counterweight side 132 again to cause the flip shaft 14 to rotate in the opposite direction, and the opening side 131 resets and closes the drain outlet 12.

[0024] For both embodiments, the water fullness is greater, the opening range of the turnover cover 13 is greater, and the drainage performance is better, so that the situation of the water fullness of the well lid 2 can be effectively avoided; after the water fullness pressure is reduced, the turnover cover 13 can be closed again, thereby reducing the situation that the sundries are drained away from the drain port 12, the sundries can be filtered again from the filter screen 32, and the filtering function of the utility model product is ensured as much as possible.

[0025] As an improved specific embodiment, the turnover cover 13 is inclined to be arranged, the turnover shaft 14 of the turnover cover 13 is arranged on the outer side, and the outer side of the turnover cover 13 is high and the inner side is low.

[0026] As shown in Figure 2 , 3 , the inclined turnover cover 13 corresponds to the upper port of the inclined drain port 12, and the drain port 12 is opened when the water pressure can push the turnover cover 13 outward; when the turnover cover 13 is closed, the inclined turnover cover 13 can flow along the inclined surface to the step 11 until the flow channel 31 when the sundries or water flow falls on it, so that the accumulation of the sundries at the turnover cover 13 can be effectively avoided.

[0027] As an improved specific embodiment, the well lid 2 is provided with a water leakage hole 21, the position of the water leakage hole 21 corresponds to the flow channel 31 below, and the outer peripheral solid part of the well lid 2 corresponds to the drain port 12 below.

[0028] As shown in Figure 1 , 4 , the water leakage hole 21 corresponds to the flow channel 31 below, thereby ensuring that the water flow and the sundries basically fall to the flow channel 31 position for effective filtering; the outer peripheral solid part of the well lid 2 covers the drain port 12, so that the sundries are prevented from falling to the drain port 12, and it is ensured that only the water flow or the sundries can be drained away through the drain port 12 when the water is full; thereby sacrificing the filtering function to first ensure the basic drainage function, and avoiding the water fullness of the urban road.

[0029] The above is only a preferred embodiment of the utility model, the protection scope of the utility model is not limited to the above-mentioned embodiments only, and any technical scheme belonging to the idea of the utility model belongs to the protection scope of the utility model. It should be noted that for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the utility model can also be considered as the protection scope of the utility model.

Claims

1. A diversion structure for urban drainage, comprising a frame (1) for installation at a drainage well head, a well cover (2) detachably arranged on the frame (1), a anti-blocking assembly (3) arranged in the frame (1), the anti-blocking assembly (3) comprising a flow channel (31) and a filter screen (32) detachably arranged in the flow channel (31), characterized in that: The inner wall of the frame (1) forms a step (11) higher than the filter screen (32) on the outer periphery of the flow channel (31), and the outer side of the step (11) is provided with a water drain port (12) penetrating up and down near the edge of the frame (1); when the flowing water cannot be timely drained from the filter screen (32) and overflows to the step (11), the flowing water is drained from the water drain port (12).

2. A flow distribution structure for urban drainage according to claim 1, characterised in that: The water drain port (12) is provided with a turnover cover (13) which opens downward to open the water drain port (12) when a certain weight is borne.

3. A flow splitting structure for urban drainage according to claim 2, characterized in that: The turnover shaft (14) of the turnover cover (13) is provided with an elastic member (15), and when the weight borne by the turnover cover (13) is greater than the supporting force of the elastic member (15), the turnover cover (13) opens downward to open the water drain port (12), and when the weight borne by the turnover cover (13) is less than the supporting force of the elastic member (15), the elastic member (15) resets the turnover cover (13) to close the water drain port (12).

4. The flow distribution structure for urban drainage according to claim 2, characterized in that: The turnover cover (13) is divided into an opening side (131) and a counterweight side (132) by the turnover shaft (14), and the counterweight side (132) is provided with a weight, and when the weight borne by the opening side (131) of the turnover cover (13) is greater than the weight of the weight, the opening side (131) opens downward to open the water drain port (12), and when the weight borne by the opening side (131) is less than the weight of the weight, the turnover cover (13) resets to close the water drain port (12).

5. A flow splitting structure for urban drainage according to claim 2 or 3 or 4, characterized in that: The turnover cover (13) is inclined, and the turnover shaft (14) of the turnover cover (13) is arranged on the outer side, and the outer side of the turnover cover (13) is higher than the inner side.

6. A flow splitting structure for urban drainage according to any one of claims 1-4, characterized in that: The well cover (2) is provided with a water leakage hole (21) in the middle, and the position of the water leakage hole (21) corresponds to the flow channel (31) below, and the outer peripheral solid part of the well cover (2) corresponds to the water drain port (12) below.

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