JPH0596112U - Concrete floor drain pipe - Google Patents

Abstract

(57) [Abstract] [Purpose] A concrete floor slab drainage pipe that can be attached to concrete slabs with different thicknesses, does not cause clogging, can be fixed in the correct position on the concrete slab, and can maintain its drainage function. The purpose is to provide. [Structure] A drainage inlet portion 5 having a plurality of openings 5A radially provided on an outer peripheral side surface is provided on a head portion of a corrosion-resistant pipe material having a variable length, and a filter 12 is attached around the drainage outlet portion 5, and It is configured by attaching a fixing bracket 13 to the concrete floor slab 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention mainly relates to a concrete slab drainage pipe for draining permeated water onto a concrete slab such as a bridge.

[0002]

[Prior Art]

 In both conventional concrete bridges and orebed bridges, most of the treatment for rainwater only considers the surface water of the road surface. Infiltration water is unavoidable at present, and water retention on the slab due to rainwater is a major cause of deterioration of asphalt pavement, cohesive failure, and exfoliation.

Therefore, conventionally, for this type of drainage, a pipe is cut to the same length as the thickness of the concrete floor slab and attached to the concrete floor slab, but the floor slab thickness is often not constant, In addition, there were many problems such as when the asphalt pavement was paved, the mix flowed into the pipe and became clogged, and the pipe was not fixed in the correct position in the concrete slab and the drainage function deteriorated.

[0004]

[Problems to be solved by the invention]

 The present invention has been made to solve the above-mentioned conventional problems, and can be attached to concrete floor slabs with different thicknesses, and without clogging, it can be fixed at the correct position on the concrete floor slab. The problem to be solved is to provide a concrete floor slab drainage pipe that can maintain its drainage function.

[0005]

[Means for Solving the Problems]

 As a means for solving the above-mentioned problems, the concrete floor slab drainage pipe of the present invention is a tube whose length is variable and which has a plurality of openings radially on the outer peripheral side in the head of a corrosion-resistant pipe material. It is configured by providing a drainage receiving part in the shape of a pipe, locating the drainage receiving part in the asphalt near the concrete floor slab, and attaching a filter around it.

[0006]

[Work]

 The drainage pipe with the above configuration can be installed by changing the length according to the thickness of the concrete floor slab. The drainage pipe can be drained, and the drainage pipe is fixed to the reinforcing bar of the concrete floor slab through the fixing bracket.

[0007]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of an embodiment of the concrete floor slab drainage pipe of the present invention, and FIG. 2 shows an exploded state of the drainage pipe of FIG. A side view, FIG. 3 is a side view in a state in which the length of the water drain pipe of FIG. 1 is shortened. First, this drain pipe is buried in the concrete floor slab 1, and the asphalt pavement 2 will be laid on the concrete floor slab 1, and the road surface 3 on the asphalt pavement 2 will be stored by rain or the like. The water W that has permeated the asphalt pavement 2 is introduced into the lower gutter or basin (not shown) through this drain pipe.

In view of this, the drainage pipe has a cylindrical drainage receiving portion 4 having a circular plate 5 attached to the top and an external thread at the bottom, a pipe member 6 having an internal thread at the top and bottom, and a top and bottom at this drainage pipe. A tubular material 7 having external threads on the inside, a tubular material 8 having internal threads on the top and bottom, a tubular material 9 having external threads on the top and bottom, a reducing socket 10 having internal threads on the top and bottom, and a flexible tube 11. Each of the members is made of a corrosion-resistant pipe material, for example, a hot-dip galvanized steel pipe or a synthetic resin having excellent durability is used, and each can be screwed up and down.

Next, a plurality of openings 5A are radially provided on the outer peripheral side surface of the cylindrical drainage receiving portion 4 with the circular plate, and the periphery of the drainage receiving portion 4 is made of stainless steel. A filter 12 is attached. Further, the annular portion of the fixing member 13 as shown in FIG. 2 is fitted on the outer circumference of the pipe members 6 and 8, and the rod portion is fixed to the reinforcing bar 1A of the concrete floor slab 1 by spot welding or the like. .

In the drainage pipe having the above structure, the upper drainage receiving portion 4 and the lower pipe material 9 and below are removed and stored, and the screw portions from the pipe material 6 to the pipe material 8 are arranged as shown in FIG. its length by screwing Ri by the be adjusted according to the thickness of the concrete slab 1, as the thickness H ₂ of FIG. 3 from the thickness H ₁ of the concrete slab 1 in FIG. 1 in It can be changed to any length. After installing the main body of the water draining pipe at a predetermined position using the fixing bracket 13, after placing concrete of the concrete floor slab 1 and mounting the filter 12 around each opening 5A of the drainage receiving part 4. After that, asphalt pavement 2 is performed.

[0011]

[Effect of the device]

 According to the concrete floor slab drainage pipe of the present invention described above, since the length of the pipe main body can be easily changed according to the thickness of the concrete floor slab, it can be applied to concrete floor slabs having different thicknesses. After installation, there is no risk of asphalt mixture flowing into the pipe and clogging, and since the pipe can be firmly fixed to the rebar by the fixing bracket, it does not move during concrete paving, which improves work efficiency. In addition, the drainage pipe can be installed accurately and the drainage function can be maintained. In addition, the permeated water on the concrete floor slab is introduced into the pipe through an opening located at 360 ° on the outer peripheral side of the drainage receiving part and is appropriately drained, so that deterioration of asphalt and cohesive failure can be prevented. effective.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of a drainage pipe of the present invention.

FIG. 2 is a side view showing a disassembled state of the water drain pipe of FIG.

FIG. 3 is a side view when the length of the water draining pipe of FIG. 1 is shortened.

[Explanation of symbols]

1 Concrete floor slab 4 Drainage receiving part 5A opening 6,7,8,9
Pipe material 12 Filter 13 Fixing bracket

Claims (1)

[Scope of utility model registration request] 1. A tubular drainage receptacle having a plurality of openings radially on the outer peripheral side is provided on the head of a corrosion-resistant pipe material whose length is variable, and the drainage receptacle is provided on a concrete floor. A concrete floor slab drainage pipe that is located in the asphalt near the slab and has a filter attached around it.