Flood drainage well lid for municipal engineering

Abstract

The utility model discloses a drainage well lid for municipal engineering, which relates to the technical field of well lids, and comprises a well lid main body consisting of a cover plate, an outer fixing ring and an arc-shaped flow guide bulge, and a drainage anti-blocking component, and the drainage anti-blocking component is used for draining accumulated water on a road surface; the drainage anti-blocking assembly comprises a drainage unit and a collection unit; the drainage unit is used for quickly draining accumulated water on the road surface; and the collecting unit is used for collecting and filtering impurities in the accumulated water. Through the arrangement of the arc-shaped flow guide grooves, when rainwater flows along the tracks of the arc-shaped flow guide protrusions, heavy stone particles can sink into the bottoms of the arc-shaped flow guide grooves and move towards the collecting frame along the tracks of the arc-shaped flow guide grooves along with water flow, and at the moment, the stone particles do not make contact with the drainage holes; and then the situation that the drainage holes are blocked by stone particles is effectively avoided, and the anti-blocking function of the well lid is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, in particular to a drainage manhole cover for municipal engineering. Background Art

[0002] Municipal engineering refers to municipal infrastructure construction projects, which are various buildings, structures, equipment, etc. set up within the planning and construction scope of urban areas, towns, and villages, and provide paid or free public products and services to residents based on government responsibilities and obligations, such as common urban roads, bridges, subways, underground pipelines, tunnels, rivers, rail transit, sewage treatment, garbage disposal and other projects;

[0003] Among the current urban infrastructure, road drainage is one of the most important projects. Good drainage can effectively ensure the safety and smoothness of road traffic. Usually, the accumulated water flows into the sewer through the drainage holes on the top of the manhole cover. However, there are only a few drainage holes on the top of the traditional manhole cover. Although it can also drain water, the drainage volume is small. Moreover, if there are large particles of debris in the water, it is easy to block the drainage holes, thus causing water accumulation on the road.

[0004] Therefore, a turbine manhole cover has appeared on the market. The structure of the turbine manhole cover is a three-dimensional turbine type. The water flowing through can quickly form a vortex flow to speed up the water flow rate, effectively separate different debris in the water flow, and prevent leaves, paper towels, plastic bags and other garbage from clogging the manhole cover. At the same time, a combination of drainage holes and gratings is adopted, and turbo-charged drainage is used to ensure the drainage volume while solving the clogging problem of the manhole cover.

[0005] However, the drainage hole of the turbine manhole cover is opened at the bottom of the vortex trough where the water flows. Small stones flowing with the water flow are easy to fall into the drainage hole and cause blockage. After a period of use, excessive blockage of the drainage hole will lead to a reduction in the drainage efficiency of the turbine manhole cover. Based on this, in order to further avoid the blockage of the drainage hole by small stones, a drainage manhole cover for municipal engineering is provided. Utility Model Content

[0006] The purpose of the utility model is to provide a drainage manhole cover for municipal engineering in order to solve the problems in the above background.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drainage manhole cover for municipal engineering, comprising a manhole cover body composed of a cover plate, an outer fixing ring, and an arc-shaped guide protrusion, wherein the outer fixing ring is fixed to the outside of the cover plate, the arc-shaped guide protrusion is provided with a plurality of protrusions and is annularly distributed and fixed to the top of the cover plate and protrudes from the bottom of the cover plate, and a drainage anti-blocking component is provided on the top of the cover plate, and the drainage anti-blocking component is used to drain water from the road surface;

[0008] The drainage anti-blocking component includes a drainage unit and a collection unit;

[0009] The drainage unit is used to quickly drain water from the road surface;

[0010] The collecting unit is used to collect and filter impurities in the accumulated water.

[0011] As a further solution of the utility model: the drainage unit includes an arc-shaped guide groove and a drainage hole;

[0012] The arc-shaped guide groove is formed on the top of the cover plate and is located between two adjacent arc-shaped guide protrusions. The drainage hole is opened at the junction of the top of the cover plate and the arc-shaped guide protrusion and passes through the bottom end of the cover plate. The drainage holes are distributed on both sides of the arc-shaped guide groove.

[0013] The arc-shaped guide groove is used to provide flow guidance for the water flow, and the drainage hole is used for the water flow to pass through the cover plate. The position of the drainage hole is higher than the bottom of the arc-shaped guide groove, so as to prevent small stones in the water flow from contacting the drainage hole.

[0014] As a further solution of the utility model: the collection unit includes a collection frame, a drainage trough, and an inclined elastic stop bar;

[0015] The collecting frame is fixed to the middle of the cover plate and protrudes to the bottom of the cover plate. A central hole communicating with the collecting frame is formed on the top of the cover plate. The drainage groove is provided on the side wall of the collecting frame.

[0016] The plurality of arc-shaped guide grooves extend through the central hole to collect impurities in the water flow into the collection frame;

[0017] The inclined elastic stop strip is fixed to the top of the side wall of the collecting frame and is used to block the floating impurities entering into the collecting frame.

[0018] As a further solution of the utility model: there are multiple inclined elastic strips, and the multiple inclined elastic strips are evenly distributed in a ring shape on the inner side of the collection frame, and the distribution diameter of the bottom ends of the multiple inclined elastic strips is smaller than the distribution diameter of the top ends of the inclined elastic strips.

[0019] As a further solution of the utility model: the bottom of the cover plate is located outside the collecting frame and is fixedly connected to an inner fixing ring, and the inner fixing ring is fixedly connected to the ends of multiple arc-shaped guide protrusions, so as to increase the strength of the center part of the cover plate.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] By setting up an arc-shaped guide groove, when rainwater flows along the arc-shaped guide convex trajectory, the heavier stone particles will sink to the bottom of the arc-shaped guide groove and move toward the collection frame along the arc-shaped guide groove trajectory with the water flow. At this time, the stone particles do not contact the drainage hole, thereby effectively avoiding the situation where the stone particles block the drainage hole, further improving the anti-clogging function of the manhole cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 This is a schematic diagram of the bottom structure of the manhole cover body of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the utility model without the outer fixing ring;

[0025] Figure 4 It is a structural sectional view of the utility model.

[0026] In the figure: 1. manhole cover body; 101. cover plate; 102. outer fixing ring; 103. arc-shaped guide protrusion; 104. inner fixing ring; 2. drainage anti-blocking component; 201. arc-shaped guide groove; 202. drainage hole; 203. collection frame; 204. drainage groove; 205. inclined elastic stop strip. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figures 1 to 4 In the embodiment of the utility model, a drainage manhole cover for municipal engineering includes a manhole cover body 1 composed of a cover plate 101, an outer fixing ring 102, and an arc-shaped guide protrusion 103. The outer fixing ring 102 is fixed to the outside of the cover plate 101. A plurality of arc-shaped guide protrusions 103 are provided and are annularly distributed and fixed to the top of the cover plate 101 and protrude from the bottom of the cover plate 101. A drainage anti-blocking component 2 is provided on the top of the cover plate 101. The drainage anti-blocking component 2 is used to drain water from the road surface.

[0029] The drainage and anti-blocking component 2 includes a drainage unit and a collection unit. The drainage unit is used to quickly drain the water on the road surface, and the collection unit is used to collect and filter impurities in the water.

[0030] The drainage unit includes an arc-shaped guide groove 201 and a drainage hole 202. The arc-shaped guide groove 201 is formed on the top of the cover plate 101 and is located between two adjacent arc-shaped guide protrusions 103. The drainage hole 202 is opened at the position where the top of the cover plate 101 and the arc-shaped guide protrusion 103 meet and penetrate the bottom of the cover plate 101. The drainage holes 202 are distributed on both sides of the arc-shaped guide groove 201. The arc-shaped guide groove 201 is used to provide flow guidance for the water flow. The drainage holes 202 are used to allow the water flow to pass through the cover plate 101. The position of the drainage hole 202 is higher than the bottom of the arc-shaped guide groove 201 to prevent small stones in the water flow from contacting the drainage holes 202.

[0031] The collecting unit includes a collecting frame 203, a drainage groove 204, and an inclined elastic stop bar 205;

[0032] The collecting frame 203 is fixed to the middle of the cover plate 101 and protrudes to the bottom of the cover plate 101. A central hole communicating with the collecting frame 203 is formed on the top of the cover plate 101. A drainage groove 204 is provided on the side wall of the collecting frame 203. A plurality of arc-shaped guide grooves 201 extend through the central hole to collect impurities in the water flow into the collecting frame 203. An inclined elastic stop bar 205 is fixed to the top of the side wall of the collecting frame 203 to block floating impurities entering the collecting frame 203.

[0033] There are multiple inclined elastic strips 205 , which are evenly distributed in a ring shape inside the collecting frame 203 , and the bottom end distribution diameters of the inclined elastic strips 205 are smaller than the top end distribution diameters of the inclined elastic strips 205 .

[0034] In this embodiment: It should be supplemented that: the manhole cover body 1 and the drainage anti-blocking component 2 can be integrally formed by an injection molding process. The manhole cover body 1 is mainly used in non-motorized vehicle lanes to prevent overweight motor vehicles from squeezing it;

[0035] In daily use, when it rains, the water on the road will gather toward the collection frame 203 along the space between two adjacent arc-shaped guide protrusions 103. In this process, most of the water will be discharged through the drainage holes 202, and other water can drive impurities such as leaves, paper towels, and plastic bags to flow into the collection frame 203. Then, the water will be discharged through the drainage groove 204, and impurities such as leaves, paper towels, and plastic bags will be trapped inside the collection frame 203.

[0036] At the same time, when rainwater flows along the trajectory of the arc-shaped guide protrusion 103, the heavier stone particles will sink to the bottom of the arc-shaped guide groove 201 and move along the trajectory of the arc-shaped guide groove 201 toward the collection frame 203 with the water flow. At this time, the stone particles do not contact the drainage hole 202, thereby effectively avoiding the situation where the stone particles block the drainage hole 202, further improving the anti-blocking function of the manhole cover;

[0037] It should also be noted that the inclined elastic stop bar 205 can block some floating impurities, thereby preventing the floating impurities in the collection frame 203 from floating up at the edge and clogging the port of the arc guide groove 201, effectively ensuring that the stone particles fall smoothly into the collection frame 203.

[0038] Please refer to Figure 2 , 4 The bottom of the cover plate 101 is located outside the collecting frame 203 and is fixed to an inner fixing ring 104 . The inner fixing ring 104 is fixedly connected to the ends of the plurality of arc-shaped guide protrusions 103 . The inner fixing ring 104 is used to increase the strength of the center portion of the cover plate 101 .

[0039] In this embodiment: this structure enables the manhole cover body 1 to have a strong compressive strength, can adapt to the rolling of non-motor vehicles and pedestrians, and ensures the normal use safety of the manhole cover body 1.

[0040] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A drainage manhole cover for municipal engineering, comprising a manhole cover body (1) consisting of a cover plate (101), an outer fixing ring (102), and an arc-shaped flow-guiding protrusion (103), wherein the outer fixing ring (102) is fixed to the outside of the cover plate (101), and the arc-shaped flow-guiding protrusion (103) is provided in plurality and is annularly distributed and fixed to the top of the cover plate (101) and protrudes from the bottom of the cover plate (101), characterized in that: A drainage and anti-blocking component (2) is provided on the top of the cover plate (101), and the drainage and anti-blocking component (2) is used to drain water from the road surface; The drainage anti-blocking component (2) comprises a drainage unit and a collection unit; The drainage unit is used to quickly drain water from the road surface; The collecting unit is used to collect and filter impurities in the accumulated water; The drainage unit comprises an arc-shaped guide groove (201) and a drainage hole (202); The arc-shaped guide groove (201) is formed on the top of the cover plate (101) and is located in the middle of two adjacent arc-shaped guide protrusions (103); the drainage hole (202) is opened at the position where the top of the cover plate (101) and the arc-shaped guide protrusion (103) meet and penetrate the bottom end of the cover plate (101); the drainage holes (202) are distributed on both sides of the arc-shaped guide groove (201); The arc-shaped guide groove (201) is used to provide flow guidance for the water flow, and the drainage hole (202) is used to allow the water flow to pass through the cover plate (101). The position of the drainage hole (202) is higher than the bottom of the arc-shaped guide groove (201) to prevent small stones in the water flow from contacting the drainage hole (202); The collecting unit comprises a collecting frame (203), a drainage groove (204), and an inclined elastic stop bar (205); The collecting frame (203) is fixed to the middle of the cover plate (101) and protrudes to the bottom of the cover plate (101); a central hole communicating with the collecting frame (203) is formed on the top of the cover plate (101); and the drainage groove (204) is provided on the side wall of the collecting frame (203); The plurality of arc-shaped guide grooves (201) extend through the central hole and are used to collect impurities in the water flow into the collection frame (203); The inclined elastic blocking strip (205) is fixed to the top of the side wall of the collection frame (203) and is used to block the floating impurities that enter the collection frame (203).

2. A drainage manhole cover for municipal engineering according to claim 1, characterized in that: The number of the inclined elastic stop bars (205) is multiple, and the multiple inclined elastic stop bars (205) are evenly distributed along the ring inside the collection frame (203), and the distribution diameter of the bottom ends of the multiple inclined elastic stop bars (205) is smaller than the distribution diameter of the top ends of the inclined elastic stop bars (205).

3. A drainage manhole cover for municipal engineering according to claim 1, characterized in that: The bottom of the cover plate (101) is located outside the collecting frame (203) and is fixedly connected to an inner fixing ring (104); the inner fixing ring (104) is fixedly connected to the ends of a plurality of arc-shaped flow-guiding protrusions (103); and the inner fixing ring (104) is used to increase the strength of the central portion of the cover plate (101).

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