CN216552329U - Improved structure of grate for preventing accumulated water and rainwater - Google Patents

Abstract

The utility model provides an improved structure of a rainwater accumulation prevention grate, which is used for solving the problem that accumulated water on a temporary pavement to be paved with an asphalt layer is difficult to discharge in asphalt concrete pavement construction. Wherein, walling crib fixed mounting is at the top of rainwater well, its characterized in that: and a drain pipe is arranged in the concrete around the rainwater well where the well ring is positioned, the upper end of the drain pipe is flush with the top surface of the concrete to be paved with asphalt, and the lower end of the drain pipe is positioned in the rainwater well. And the lower surface of the well ring is provided with downward extending bosses, an arch door structure is formed between the area between every two bosses and the top surface of the concrete, and the arch door structure forms a drainage channel at the top of the catch basin. According to the utility model, the drainage channel is formed by improving the structure of the walling crib, and the drainage channel is formed by arranging the drainage pipe in the concrete base for installing the walling crib, so that the drainage of rainwater on the road surface in the construction process is realized, and the rainwater accumulation is avoided.

Description

Improved structure of grate for preventing accumulated water and rainwater

Technical Field

The utility model relates to a road construction drainage facility technical field.

Background

The layered structure of an asphalt concrete pavement is generally as follows: the following layers: medium-sized dense-graded asphalt concrete (AC-20C) with the thickness of 6 cm; a middle surface layer: medium-sized dense-graded asphalt concrete (AC-16C) with the thickness of 5 cm; and (3) upper surface layer: 4cm fine grain type dense graded asphalt concrete (AC-13C) (modified asphalt) with an asphalt layer and an oil permeable layer on the top, wherein an asphalt bonding layer is spread between every two surface layers for auxiliary bonding. In the construction process, the construction is carried out layer by layer, and drainage facilities such as the rainwater grate and the like are installed in place in advance before the asphalt layer is paved, so that the height of the rainwater grate is higher than that of the upper layer, and the difficulty of road surface drainage before the asphalt layer is paved is caused.

The rainwater grate refers to a gray cast iron well ring and a gray cast iron grate component which are arranged at the top of the rainwater well, wherein the gray cast iron well ring is fixed at the top of the concrete rainwater well through anchor embedded bolts or expansion bolts, and the grate is buckled on the well ring to form an openable structure. Referring to fig. 1 and 2, in the road construction process, the height H of the well ring and the grate above the ground is about 40-50 mm, so that temporary drainage is blocked, accumulated water on the road surface to be constructed is easily caused, and the accumulated water can adversely affect the laying of the upper asphalt layer.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides an improved structure of a rainwater accumulation prevention grate, which is used for solving the problem that accumulated water on a temporary pavement to be paved with an asphalt layer is difficult to discharge in asphalt concrete pavement construction.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

prevent ponding rainwater grate and improve structure, walling crib fixed mounting is at the top of rainwater well, its characterized in that: and a drain pipe is arranged in the concrete around the rainwater well where the well ring is positioned, the upper end of the drain pipe is flush with the top surface of the concrete to be paved with asphalt, and the lower end of the drain pipe is positioned in the rainwater well.

Further improvement measures are taken, the top surface of the concrete where the upper port of the drainage pipe is located is provided with a slope, so that accumulated water on the road surface can be collected to the slope.

Furthermore, the lower surface of the walling crib is provided with a boss extending downwards, an arched door structure is formed between the area between every two bosses and the concrete top surface, a drainage channel is formed at the top of the rainwater well by the arched door structure, the drainage channel is flush with the lowest point of the walling crib, namely the temporary pavement, and due to the existence of the channel, pavement technology can be quickly drained into the rainwater well to form an effective pavement drainage channel.

The drainage channels are arranged around the walling crib, so that drainage elements are effectively guaranteed.

The boss and the walling crib are integrally formed by casting nodular cast iron.

Preferably, the drainage pipe is a PVC pipe, which is convenient for construction.

The utility model has the beneficial effects that:

the drainage channel is formed by improving the structure of the well ring and the PVC drainage pipe is arranged in the concrete base for installing the well ring, so that the drainage of rainwater on the road surface in the construction process is realized, the rainwater accumulation is avoided, and the drainage channel has positive significance for improving the construction quality and preventing the rainwater from soaking the roadbed in the construction process.

Drawings

Fig. 1 is a vertical sectional view of a rainwater well in the prior art.

Fig. 2 is a plan view of a rainwater well in the prior art.

Fig. 3 is a perspective view of the embodiment after modification.

Fig. 4 is a sectional view of the embodiment after modification.

FIG. 5 is a node diagram of an embodiment.

Fig. 6 is an effect diagram after the asphalt layer is laid.

Figure 7 is a perspective view of a walling crib.

In the figure:

10 a catch-basin for catch-basin,

20 grommets, 21 bosses, 22 arched door structures,

30 of the fine-toothed comb,

a 40PVC drain pipe is arranged on the upper portion of the water tank,

50 asphalt layers.

Detailed Description

This example describes in detail the implementation of the present technology in conjunction with the series of drawings in the specification.

The main body of the catch basin 10 is prefabricated by C25 concrete, and 1:3 cement mortar base is paved at the lower part. The well ring 20 and the grate 30 are made of nodular cast iron, and in order to ensure the smoothness of the grate and the road surface, the well ring and the grate are installed and temporarily reinforced before the construction of the upper layer of the pavement asphalt according to the design elevation and the vertical and horizontal gradient of the road surface in the construction process. Wherein, fig. 1 and 2 show a vertical sectional view and a horizontal layout view of a rainwater well in a conventional asphalt road construction, wherein, in the drawings, the height H of a well ring and a grate above the ground is about 40-50 mm, namely, the part for temporarily reinforcing the well ring has a water-blocking effect, and the top of the rainwater well is provided with a slope along the periphery of the well ring to ensure the installation firmness.

Therefore, in the prior art, the technical problem is that the drainage of the accumulated water on the temporary pavement to be paved with the asphalt layer is difficult.

The utility model actively solves the problems from the following two aspects:

referring to fig. 3 to 4, one of the technical solutions is: the technical improvement is carried out on the well ring 20, specifically, the improvement is carried out by combining with a casting process, in the process of well ring casting forming and the like, a plurality of bosses 21 are preset on the lower surface of a flange plate at the lower end of the well ring 20, the structure is very easy to realize, the manufacturing cost is not increased basically, and the cost of the purchased cast iron well ring can be effectively ensured. An arched door structure 22 is formed between the area between every two bosses 21 and the flange plate, a drainage channel is formed at the prefabricated surface of the top of the rainwater well and is flush with the lowest point of the well ring, namely the temporary road surface, and due to the existence of the channel, the road surface technology can be quickly drained into the rainwater well, and an effective road surface drainage channel is formed.

The drainage channels are arranged around the well ring, so that drainage elements are effectively guaranteed.

The height of the boss on the lower surface of the well ring is increased, so that the drainage effect can be improved, and the height of the boss can be required to be customized by a ductile cast iron grate manufacturer, so that the well ring has feasibility of implementation.

Further, the arched door structure is formed by the convex platform arranged on the bottom surface of the flange, referring to fig. 7, that is, the convex platforms are arranged on the bottom surface of the manhole ring, and the convex platforms support the manhole ring and the concrete surface to form an arched door structure.

The second technical means to solve the problem: and (3) pre-burying a PVC drain pipe 40 at the periphery of the concrete catch basin where the well ring is installed, wherein the PVC drain pipe is a conventional phi 30 water pipe, the upper end of the PVC drain pipe 40 is flush with the top surface of the concrete, and the lower end of the PVC drain pipe is positioned in the catch basin and is flush with the concrete. Preferably, at least three sets are provided at each edge of the gully.

Further improvement measures are taken, and the concrete surface where the upper port of the PVC drainage pipe is located is provided with a slope, so that accumulated water on the road surface can be collected to the concrete surface.

Referring to fig. 5, through the combination of the above two technical means, the problem of difficulty in discharging accumulated water on the temporary pavement to be paved with the asphalt layer in the prior art is well solved.

The two technical means can be jointly implemented or can be implemented independently, wherein the joint implementation has a more positive drainage effect, and the drainage effect can be designed and matched according to the rainwater environment where construction is carried out.

Referring to fig. 6, after the asphalt layer is paved and compacted, the asphalt layer 50 has a thickness enough to block the drainage channel, so that the drainage channel completes its mission and does not play a drainage role. The arched door structure and the PVC drain pipe in this embodiment both function as temporary drainage before the asphalt layer is laid.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the scope of the present invention, and various modifications and improvements of the present invention by those skilled in the art without departing from the spirit of the present invention are intended to fall within the scope of the present invention defined by the claims.

Claims (6)

1. Prevent ponding rainwater grate and improve structure, walling crib fixed mounting is at the top of rainwater well, its characterized in that: and a drain pipe is arranged in the concrete around the rainwater well where the well ring is positioned, the upper end of the drain pipe is flush with the top surface of the concrete to be paved with asphalt, and the lower end of the drain pipe is positioned in the rainwater well.

2. The improved structure of the grate for preventing rainwater from accumulating according to claim 1, wherein the top surface of the concrete where the upper port of the drain pipe is located is provided with a slope which is beneficial to rainwater to collect to the drain pipe.

3. The improved structure of the grate for preventing the rainwater from accumulating according to claim 1, wherein the lower surface of the well ring is provided with downward extending bosses, and an arched door structure is formed between the area between every two bosses and the top surface of the concrete, and the arched door structure forms a drainage channel at the top of the rainwater well.

4. The improved structure of the grate for preventing rainwater from accumulating as in claim 3, wherein the drainage channels are all present around the walling crib.

5. The improved structure of the grate for preventing rainwater accumulation according to claim 3, wherein the boss and the walling crib are integrally formed by casting ductile iron.

6. The improved structure of the grate for preventing rainwater from accumulating according to claim 1, wherein the drain pipe is a PVC pipe.

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