JPH08159346A - Drain hose - Google Patents

Abstract

PURPOSE: To provide a drain hose free from damages due to the traffic of vehicles, when the hose is laid at the traversing section of a road or the like. CONSTITUTION: A hose uses a cylindrical foundation with polyester resin yarn arranged as warp and weft, as a core and both internal and external surfaces of the core are covered with soft vinyl chloride resin for integrating the foundation and a soft vinyl chloride resin film with each other. Regarding this hose, the internal surface is deposited at the preset intervals along a cross sectional direction, so as to divide the internal cross section into a plurality of parallel small cross sections. In addition, the internal surface of the hose is deposited at the preset intervals along a lengthwise direction, on the basis of the deposited positions as a reference, and a plurality of rows of cylindrical space are formed inside with a small cross section as a bottom for use as a cover hose 3. Inner hoses 2, 2 and so forth for circulating waste water are inserted in a plurality of rows of cylindrical space in the hose 3 over the entire length thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage hose, and more particularly to a drainage hose used for sending drainage water across a road section through which vehicles and the like pass.

[0002]

2. Description of the Related Art Conventionally, at a construction site involving excavation and the like, various drainage construction methods are often used together as an auxiliary construction method so that excavation work can be performed in a dry state. For example, in the drainage method called Kamaba method, near the ground to be excavated,
The water collection pit is excavated to a depth where groundwater can flow naturally, and the groundwater that flows into the water collection pit is pumped up by an underwater pump, and is extended to a drainage ditch near the resin drain hose and drained. We are taking such measures.
In addition, in river repair works and the like, a method is also used in which the river water in the range separated by the temporary deadline is pumped up using multiple submersible pumps and dried up. At this time, a submersible pump with a specified pumping and discharge capacity is selected, but to install the submersible pump, connect a drain hose with the inner diameter that was at the discharge port of the submersible pump and The method is to hang it down at a predetermined position in the deadline with a hanging rope or the like, and to guide the drainage hose to the ground and extend it to a nearby drainage ditch.

As the drainage hose, various synthetic resin hoses can be used, but it is preferable to use a hose having a pressure resistance against a predetermined internal pressure and an improved surface abrasion resistance. The discharge port of the submersible pump usually has a nominal diameter of 50 mm, although it depends on the discharge capacity.
(2 inches) and 75 mm (3 inches) are often used, and the drainage hose having the inner diameter dimension corresponding to the discharge port is often used. The applicant has already constructed a tubular base cloth in which polyester resin threads are arranged as warps and wefts as a drainage hose of this type, and the tubular base cloth is used as a core cloth by dipping the inner and outer surfaces thereof. We are developing a hose with various cross-sectional dimensions, which is coated with a soft vinyl chloride resin and has a base cloth and resin integrated with each other and is highly durable.

[0004]

By the way, when the drainage hose as described above is extended within the site such as a construction site, there are many cases where it crosses the construction road on the way. In this case, pull the submersible pump attached to the end of the hose from the water by hooking the drain hose with the tire of the construction vehicle, etc. There is also a problem that the end of the submersible pump may fall off and damage the submersible pump.

Therefore, an object of the present invention is to solve the above-mentioned problems of the conventional technique and to minimize obstacles when a vehicle passes when draining water to another place across a road portion or the like. The purpose is to provide the drainage hose.

[0006]

In order to achieve the above object, the present invention uses a tubular base cloth having resin threads as warps and wefts as a core, and the inner and outer surfaces of the core are made of a thermoplastic resin. The inner hollow cross section of the hose in which the base cloth and the thermoplastic resin are coated to be integrated so as to be divided into a plurality of parallel small cross sections, and the inner surface of the hose is welded at predetermined intervals in the cross section, A cover hose in which the inner surface of the hose is welded at a predetermined interval in the longitudinal direction of the hose with reference to the welding position, and a plurality of rows of cylindrical spaces having the small cross section as a bottom surface are formed therein
An inner hose that is inserted over the entire length of the plurality of rows of cylindrical spaces formed in the cover hose and that allows the drainage to flow is provided.

At this time, the internal hose has a hose joint formed with a hose connecting end for connecting a pipe end portion connectable to the internal hose and a flow passage from the pipe end to communicate with one hose. However, it is preferable to connect at least one end.

[0008]

According to the present invention, a tubular base cloth having resin threads as warp threads and weft threads is used as a core, and the inner and outer surfaces of the core are covered with a thermoplastic resin to form the base cloth and the thermoplastic resin. The inner surface of the hose in which the above is integrated is divided into a plurality of parallel small sections, and the inner surface of the hose is welded at a predetermined interval in the sectional direction, and the inner surface of the hose is referenced with the welding position as a reference. A plurality of rows of cylindrical spaces having the small cross section as a bottom surface are welded at predetermined intervals in the longitudinal direction to form a cover hose, and the entire length in the plurality of rows of cylindrical spaces formed in the cover hose. By inserting an internal hose that distributes drainage over, the laid hose height can be lowered, and even if the tire part of the vehicle passes over the hose,
The entire hose can be continuously drained through the hose part that is not blocked without blocking the entire hose, and there is no problem even when the vehicle travels.

At this time, at least one end of the internal hose has a hose joint formed with a connectable pipe end and a flow passage from the pipe end, and a hose connecting end for communicating with one hose. By connecting the drainage hose, the drainage hose can be easily connected to the large diameter drainage hose connected to the discharge port of the submersible pump, and the usability of the hose can be improved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the drainage hose according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a transverse sectional view showing a sectional shape of a drainage hose 1 according to the present invention. This drainage hose 1 is composed of four internal hoses 2 arranged in parallel and a cover hose 3 formed in a plate shape so as to cover the outer circumference of the internal hose 2.

In this embodiment, as the internal hose 2, a well-known drainage hose 1 of Sunny hose (registered trademark) having a nominal diameter of 40 mm (inner diameter φ = 40 mm) is used. On the other hand, the cover hose 3 is manufactured by manufacturing a ready-made Sunny hose (registered trademark) having a nominal diameter of 200 mm (inner diameter φ0 = 200 mm) as shown in FIG. 2A as shown in FIG. 2B. It was done. In this Sunny Horse (registered trademark), a polyester resin yarn is arranged as warp and weft to form a tubular base fabric, and the tubular base fabric is used as a core fabric, and its inner and outer surfaces are heated by dipping. A base resin and a resin are integrated by coating with a soft vinyl chloride resin which is a plastic resin.

The cover hose 3 is pressed from above and below at a position (arrow position) that divides the entire width of the hose in a flat state into four equal parts, and the inner surface of the hose is welded within the width d and is divided by this welded portion W. The inner diameter of each of the four tubular portions is φ1. The hose may be welded so that the welded portions W have a predetermined pitch in the longitudinal direction of the cover hose 3 as shown in FIG. 3, or may be welded over the entire length L of the hose. Then, the internal hose 2 is inserted into each of the cylindrical portions of the cover hose 3 which are divided into four rows, and the drain hose 1 according to the present invention is obtained.

Further, hose joints 4 are connected to both ends of the drainage hose 1. This hose fitting 4
Is a resin molded product and is composed of a branch portion 5 to which the tip of each internal hose 2 can be connected, and a collecting portion 6 that continuously communicates from each pipe end portion of the branch portion 5 to the large diameter portion. The outer diameter of the pipe end of the portion 5 is set to be substantially equal to the inner diameter of the inner hose 2. Therefore, in order to connect the hose coupling 4 to the drainage hose 1, the ends of the inner hose 2 are fitted to the respective pipe ends, and the fasteners such as the hose band 8 are attached from the outside of the cover hose 3. .

FIG. 4 is an exploded perspective view showing the internal structure of the drainage hose 1 in the connected state and the shape of the hose joint 4. As shown in the figure, the branch portion 5 of the hose joint 4 is formed with four continuous thin tube ends, and the hose connecting end 7 having a large diameter portion is formed on the collecting portion side. A drain hose 10 having a nominal diameter of 75 mm is connected to the hose connection end 7. On the other hand, a part of the drainage hose 1 is cut away so that the relationship between the internal hose 2 and the cover hose 3 can be understood.

Next, the drainage hose 1 shown in FIGS.
Fig. 5 shows an example of application in which is laid for drainage. FIG. 5 shows a state in which the submersible pump 22 is installed in the water collecting portion 21 in the water collecting pit 20. The submersible pump 22 is suspended at a predetermined position in the water collecting pit 20 by a suspension rope 23, and a lower end of a drainage hose 30 having a nominal diameter of 75 mm is connected to a discharge port 22a on the upper surface of the submersible pump 22.
The drainage hose 30 extends to the edge of the ground portion of the water collecting pit 20 and is connected to the hose connecting end 7 of the hose joint 4 at the ground portion. Further, a flat drainage hose 1 according to the present invention is connected to a branch portion 5 of the hose joint 4. The flat shape drainage hose 1 is laid so as to cross the above-ground road portion, and the hose joint 4 is provided near the existing drainage groove 25.
The short drainage hose 31 having a nominal diameter of 75 mm is connected again via the above, and the drainage sent can be guided to the drainage groove 25. In addition, without using the drainage hose 31 and the hose joint 4 for connecting the drainage hose 31,
The end of the drainage hose 1 may be directly extended to the drainage groove 25.

The behavior of the flat-shaped drainage hose 1 laid on the road when the tire 40 of the passing vehicle is trampled will be described with reference to FIG. Figure 6 (a)
As shown in FIG. 5, in the flat shape drainage hose 1 in the normal drainage state, the inside of each internal hose 2 is filled with the drainage of approximately the same water level. When the tire 40 of the vehicle passes over the hose position in this state, the hose 2a at the end portion is contacted by the ground contact portion of the tire 40 as shown in FIGS.
The hose cross section is deformed so that it is crushed in order.
That is, the inside of the hose is filled with the drainage discharged from the submersible pump at a predetermined water level, but since the ground contact pressure of the tire 40 is much higher than that of the tire 40, the drainage of the hose at the passing portion is interrupted momentarily. , At that time, the water is drained with the water level or water pressure of the other hose whose cross section is not blocked. Without completely blocking the hose like this,
Since the water can be drained from other hose parts, it is also possible to avoid a sudden rise in the internal pressure of the hose, and the hose joint 4
At the position, the hose will not come off due to the acting internal pressure. Further, the height of the hose is lower than that of one drainage hose, so that the tire is not caught by the tire when the vehicle is running.

In the above description, four internal hoses 2 are connected.
Although the configuration and the operation have been described by taking the example as an example, the inner diameter of the inner hose 2 and the number of stations of the inner hose 2 are such that the cover hose 3 is wider than the ground portion of the tire 40 and drainage of the closed hose portion is sufficient. It goes without saying that the number can be arbitrarily set within the range of the number of stations that can be transferred. Also,
As the material of the hose, an appropriate material can be used according to the planned internal pressure, wear conditions, etc., and the material of the internal hose 2 and the material of the cover hose 3 can be different.

[0018]

As is clear from the above description, according to the present invention, even when a hose is laid across a road portion, it is possible to achieve the effect of draining water with the influence of the passage of a vehicle being minimized. Play.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a drainage hose according to the present invention.

FIG. 2 is a plan view shown for explaining the internal configuration of the drainage hose of the present invention.

FIG. 3 is a processing explanatory view shown for explaining a formation state of a cover hose.

FIG. 4 is an exploded perspective view showing a connection configuration of a drainage hose and a hose joint.

FIG. 5 is a schematic configuration diagram showing an example in which the drainage hose according to the present invention is applied to a drainage method.

FIG. 6 is a state explanatory view schematically showing changes in the deformed state of the hose when the vehicle passes over the drainage hose according to the present invention.

[Explanation of symbols]

 1 Drain hose 2 Internal hose 3 Cover hose 4 Hose joint W Welding part

Claims (2)

[Claims] 1. A tubular base cloth having resin threads as warps and wefts as a core, and the inner and outer surfaces of the core are covered with a thermoplastic resin to integrate the base cloth with the thermoplastic resin. The inner surface of the hose is welded at predetermined intervals in the cross-sectional direction so that the inner cross-section of the hose is divided into a plurality of parallel small sections, and the inner surface of the hose is predetermined in the longitudinal direction of the hose based on the welding position. A cover hose that is welded at intervals and has a plurality of rows of cylindrical spaces with the small cross section as a bottom surface formed therein.
A drainage hose, comprising: an internal hose that is inserted into the plurality of rows of cylindrical spaces formed in the cover hose over the entire length thereof and that allows drainage to flow therethrough. 2. A hose joint having a hose connection end formed by collecting a pipe end portion connectable to the internal hose and a flow passage from the pipe end portion to communicate with one hose. The drainage hose according to claim 1, wherein the drainage hose is connected to at least one end.