CN223329699U

CN223329699U - Expansion joint concrete root position drainage device

Info

Publication number: CN223329699U
Application number: CN202422799513.5U
Authority: CN
Inventors: 周浩; 阮春东; 李浩楠; 裴云瑞; 王彬; 聂孟光; 郏建树
Original assignee: Jinan City Construction Group Co ltd; Jinan Urban Construction Group Co Ltd
Current assignee: Jinan City Construction Group Co ltd; Jinan Urban Construction Group Co Ltd
Priority date: 2024-11-18
Filing date: 2024-11-18
Publication date: 2025-09-12
Anticipated expiration: 2034-11-18

Abstract

The utility model belongs to the field of bridge technology, and particularly relates to a drainage device for the base of expansion joint concrete. The device comprises a long steel pipe with a plurality of openings uniformly formed on its upper surface. The interior of the long steel pipe is filled with a primary coarse aggregate filter layer. One end of the long steel pipe is connected to the upper portion of a funnel and welded to the funnel. A filter screen is provided within the funnel, located below the long steel pipe. A curved guide vane is welded to the outlet pipe below the funnel. The drainage device of the present invention collects water that has seeped into the bridge deck waterproofing layer from the base of the expansion joint concrete strip. The water is then discharged through the long steel pipe and funnel into the bridge downspout or flows naturally beneath the bridge, thus preventing concrete damage or steel beam corrosion caused by water accumulation at the base of the concrete.

Description

Expansion joint concrete root position drainage device

Technical Field

The utility model belongs to the field of bridge construction, and particularly relates to a drainage device for the root position of expansion joint concrete.

Background

When rainwater flows through the bridge surface asphalt concrete to permeate into the bridge deck waterproof layer, the part of rainwater can not flow out quickly, can slowly gather to the root of the anti-collision wall and the root of the expansion joint concrete pouring belt along the longitudinal slope and the transverse slope of the bridge, and can still ooze out from the parts after ordinary rains for several days, and particularly when the freezing and thawing environment changes in autumn and winter in north, the phenomenon of concrete damage or steel beam corrosion can be caused.

Disclosure of Invention

The invention aims to solve the problem of overcoming the defects of the background technology and providing a drainage device at the root position of expansion joint concrete.

The invention is realized by the following technical scheme:

The expansion joint concrete root position drainage device comprises a long steel pipe, wherein a plurality of holes are uniformly formed in the upper surface of the long steel pipe along the length direction of the long steel pipe, a coarse grain material reverse filtering layer is filled in the long steel pipe once, one end of the long steel pipe is communicated with the upper part of a funnel and welded with the funnel, a filter screen is arranged in the funnel and positioned below the long steel pipe, and a bending guide vane is welded in an outlet pipe below the funnel.

Preferably, an opening cover is arranged above the funnel, external threads are arranged on the periphery of the upper part of the funnel, internal threads are arranged on the inner wall of the opening cover, and the opening cover is connected with the funnel through threads.

Preferably, the filter screen is a stainless steel screen.

Preferably, a secondary coarse grain reversed filter layer is paved above the filter screen.

Preferably, the spacing between the openings is 30mm.

Preferably, the curved guide vane is an S-shaped iron sheet.

The drainage device can collect accumulated water which permeates into the bridge floor waterproof layer at the root of the expansion joint concrete pouring belt, and the accumulated water is discharged into the bridge downpipe through the long steel pipe and the funnel or naturally flows to the lower part of the bridge, so that the problems of concrete damage or steel beam corrosion caused by water at the root of the concrete are avoided.

Drawings

FIG. 1 is a schematic diagram of the structure of the present embodiment;

fig. 2 is a schematic structural view of the embodiment after the cover is opened;

Fig. 3 is a schematic view of the structure of the funnel according to the present embodiment with the outlet pipe removed from the bottom.

In the figure, 1 long steel pipe, 2 open pores, 3 funnels, 4 filter screens, 5 outlet pipes, 6 bending guide vanes and 7 opening covers.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention.

This embodiment includes long steel pipe 1, and long steel pipe 1 can be preferrably galvanized steel pipe, evenly has seted up a row of trompil 2 on long steel pipe 1 upper surface along long steel pipe 1 length direction, and trompil 2 interval can be determined according to discharge, preferrably trompil 2 interval 30mm, and trompil 2 has the function of collecting the rainwater, will permeate to the rainwater of bridge floor waterproof layer through bridge floor asphalt concrete through trompil 2 in long steel pipe 1. The long steel pipe 1 is internally filled with a primary coarse grain reversed filter layer, the primary coarse grain reversed filter layer is coarse grains, and rainwater is preliminarily filtered through the coarse grains.

One end of the long steel pipe 1 is welded with a funnel 3, and the long steel pipe 1 is communicated with the funnel 3. A filter screen 4 is arranged in the funnel 3, the filter screen 4 is positioned below the long steel pipe 1, the filter screen 4 is a stainless steel screen, and the filter screen 4 can be directly welded with the inner wall of the funnel 3. A secondary coarse grain material reverse filtering layer is paved above the filter screen 4, and the secondary coarse grain material reverse filtering layer is coarse grains material, so that rainwater can be further filtered.

Preferably, an opening cover 7 is arranged above the funnel 3, external threads are arranged on the periphery of the upper part of the funnel 3, internal threads are arranged on the inner wall of the opening cover 7, and the opening cover 7 is in threaded connection with the funnel 3. The opening cover 7 can be unscrewed to clean dirt on the filter screen 4, and the opening cover 7 can be prevented from being blown open by strong wind by the screwing mode.

In order to prevent external impurities from reversely entering the funnel 3 through the outlet pipe 5 below the funnel 3 and to block the water outlet below the funnel 3, the curved guide vane 6 is preferably welded in the outlet pipe 5 below the funnel 3, and in this embodiment, the curved guide vane 6 is preferably an S-shaped iron sheet. The curved deflector 6 divides the interior space of the outlet pipe 5 into separate curved spaces, thus effectively preventing foreign objects from reversely entering the interior of the funnel 3.

During construction, the long steel pipe 1 is embedded in the root of the upstream expansion joint concrete, the long steel pipe 1 is located below the bridge deck asphalt concrete and above the bridge deck waterproof layer, the long steel pipe 1 is located at the expansion joint concrete, the long steel pipe 1 is placed along the length direction of the expansion joint, namely, the long steel pipe 1 is placed along the width direction of the bridge deck, the long steel pipe 1 extends to one side of the bridge all the time, the funnel 3 can be connected with the downpipe of the bridge, rainwater collected by the long steel pipe 1 and the funnel 3 can be discharged from the downpipe of the bridge, and any component can be omitted, so that the rainwater can be directly discharged from the funnel 3 to the position below the bridge.

It should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention, and not for limiting the same, and those skilled in the art should understand that they can still modify the technical solution described in the above-mentioned embodiments or make equivalent substitutions for some technical features thereof, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of each embodiment of the present invention.

Claims

1. A drainage device for the root position of an expansion joint concrete, characterized in that it comprises a long steel pipe (1), a plurality of openings (2) are uniformly provided on the upper surface of the long steel pipe (1) along the length direction of the long steel pipe (1), a primary coarse aggregate filter layer is filled inside the long steel pipe (1), one end of the long steel pipe (1) is connected to the upper part of a funnel (3) and is welded to the funnel (3), a filter screen (4) is provided inside the funnel (3), and the filter screen (4) is located below the long steel pipe (1); and a curved guide plate (6) is welded inside the outlet pipe (5) below the funnel (3).

2. The expansion joint concrete root position drainage device according to claim 1 is characterized in that: an opening cover (7) is provided above the funnel (3), an external thread is provided on the outer periphery of the upper part of the funnel (3), an internal thread is provided on the inner wall of the opening cover (7), and the opening cover (7) and the funnel (3) are threadedly connected together.

3. The expansion joint concrete root position drainage device according to claim 1, characterized in that the filter mesh (4) is a stainless steel mesh.

4. The expansion joint concrete root position drainage device according to claim 1, characterized in that a secondary coarse aggregate filter layer is laid above the filter screen (4).

5. The expansion joint concrete root position drainage device according to claim 1, characterized in that the openings (2) are spaced 30 mm apart.

6. The expansion joint concrete root position drainage device according to claim 1, characterized in that the curved guide plate (6) is an S-shaped iron plate.