JPH05156676A - Drainage system - Google Patents

Abstract

PURPOSE:To regulate waste water flow so as to prevent clogging when making waste water flow out of a cross pipe or a vertical pipe into the vertical pipe or the cross pipe via a bent pipe. CONSTITUTION:A bent pipe 4 is connectively provided between a vertical pipe 2 of circular cross section and a cross pipe 3 which is tapered from its both side portions 3c, 3c to its pipe bottom portion 3a. A vertical pipe connecting portion 41 at which the bent pipe 4 is connected to the vertical pipe 2 is formed with the same shape as the vertical pipe 2 and a cross pipe connecting portion 42 for connection to the cross pipe 3 is formed with the same shape as the cross pipe 3. The bent pipe 4 is formed with a continuous curved surface whereby the sectional form of the vertical pipe connecting portion 41 gradually approaches the sectional form of the cross pipe connecting portion 42.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage device, and more particularly to a drainage device provided in a high-rise building.

[0002]

2. Description of the Related Art Generally, it is ideal that a drainage device provided in a middle-high-rise building is composed of a single vertical pipe vertically arranged from the top floor to the bottom floor. Due to the difference in room allocation, it is very difficult to pipe straight, and in that case, the vertical pipe will be offset. Therefore, the drainage device in the middle-high-rise building, vertical pipes that are arranged to be offset in the vertical direction, and horizontal pipes that are inclined in the horizontal direction or downward to connect between these vertical pipes and , Is composed of a bent pipe that connects a horizontal pipe and a vertical pipe. Then, the sewage and drainage discharged from each floor is designed to flow out to a sewer pipe, a sewage pipe, etc. through a vertical pipe, a bent pipe, and a horizontal pipe.

In the present invention, the horizontal drawing tube includes not only those arranged horizontally but also those arranged inclined downwardly to about 45 degrees.

[0004]

By the way, when a large amount of drainage flows in the vertical pipe at a time, when the direction is changed by the curved pipe, it collides with the curved pipe and jumps up to block the inside thereof. Before and after this block, the air layer in the drainage device does not communicate with each other, and the inside of the pipe becomes positive pressure or negative pressure, and as a result, the traps of various sanitary kitchen equipment connected to the drainage device breaks water and the odor inside the pipe However, there was a problem of backflow into each room.

Further, when the turbulent drainage flows into the horizontal pipe by colliding with the curved pipe and jumping up, the flow velocity becomes slower than the flow velocity in the vertical pipe, causing stagnation due to the flow and reducing the ventilation space. .. When the stagnation flow is reached in the curved pipe and the flow is converted in the vertical direction, it collides with the inner surface of the curved pipe and closes the inside thereof. When the drainage device is blocked by the drainage in this way, the water in the trap is broken, and as described above, the malodor in the pipe flows back into the room.

The present invention has been made in view of the above problems, and reduces the flow velocity change of drainage in a horizontal pipe, and at the same time, a horizontal pipe or a horizontal pipe from a horizontal pipe through a curved pipe. It is intended to provide a drainage device which rectifies the drainage when flowing out the drainage to a pipe and prevents clogging.

[0007]

A first drainage device of the present invention comprises a vertical pipe, a horizontal draw pipe, and a drain pipe which is connected between the vertical pipe and the horizontal draw pipe and horizontally draws drainage from the vertical pipe. A drainage device comprising a bent pipe leading to a pipe, wherein the vertical pipe has a circular cross section,
In addition, the horizontal pipe is tapered from both sides to the pipe bottom, and the curved pipe has a vertical pipe connecting portion that has the same cross-sectional shape as the vertical pipe and communicates with the vertical pipe. It has the same cross-sectional shape and a horizontal draw pipe connection part that communicates with the horizontal draw pipe, and the inner surface on the large diameter side of the bending radius gradually tapers from these vertical pipe connection parts to the horizontal draw pipe connection parts. It is characterized in that it is formed in.

Further, the second drainage device of the present invention is provided with a horizontal pipe, a vertical pipe, and a bend which is provided between the horizontal pipe and the vertical pipe to guide the drainage from the horizontal pipe to the vertical pipe. A drainage device including a pipe, wherein the horizontal pipe is tapered from both sides thereof to a pipe bottom, a vertical pipe is formed to have a circular cross section, and the curved pipe is the same as the horizontal pipe. A horizontal pipe connecting part that has a cross-sectional shape and communicates with a horizontal pipe, and a vertical pipe connecting part that has the same cross-sectional shape as a vertical pipe and communicates with a vertical pipe. The inner surface on the smaller diameter side of the bending radius is gradually formed from the tapered portion to the circular portion from the portion to the vertical pipe connecting portion.

[0009]

[Operation] The wastewater flowing down from the vertical pipe to the curved pipe collides with the inner surface of the curved pipe on the large diameter side of the bending radius where it gradually tapers, energy is lost, and it is rectified without rising to the upper space. Being spilled. The drainage that has reached the horizontal pipe is rectified without increasing the flow velocity and causing stagnation because the pipe bottom side inner surface is tapered. Furthermore, when the rectified drainage reaches the curved pipe from the horizontal pipe, it flows down into the vertical pipe along the inner surface of the curved pipe on the smaller diameter side of the bending radius where it gradually becomes circular from the tapered pipe, so that the drainage is smoothly carried out vertically. It is prevented from leading to the pipe and rising to its upper space.

As a result, when the drainage is made to flow down from the vertical pipe to the horizontal pipe through the curved pipe or from the horizontal pipe to the vertical pipe through the curved pipe, the upper space thereof is secured to cause adverse effects such as blockage. It can be rectified to a state in which the change in flow velocity is small, and can be smoothly guided.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, the drainage device 1
Is a vertical pipe 2 vertically arranged over each floor of the building, a horizontal pipe 3 horizontally arranged in the building, and the vertical pipe 2 and the horizontal pipe 3 arranged between these vertical pipes 3. It is composed of a bent pipe 4 provided.

The vertical tube 2 is formed to have a circular cross section, and a flange 2A is provided at the lower end thereof. In addition, the horizontal drawing tube 3
Is a pipe bottom portion 3a, a pipe top portion 3b, and these pipe bottom portions 3a.
It has side parts 3c and 3c which connect between and the pipe top part 3b. The radius of curvature of the pipe bottom side inner surface 30a is formed to be smaller than the radius of curvature of the pipe top side inner surface 30b, and the pipe bottom side inner surface 30a and the pipe top side inner surface 30b are bent side tapered inner surfaces 30c, 30c are connected and are formed in a substantially oval cross section (see FIG. 3A). A flange 3A is provided at the end of the flange.

On the other hand, the bent pipe 4 is formed so as to be curved so as to continuously convert the outflow direction from the vertical direction to the horizontal direction by 90 degrees from the lower end of the vertical pipe 2 to the end of the horizontal drawn pipe 3, A vertical pipe connecting portion 41 having a circular cross section, which is continuously provided at an end portion on the side connecting with the pipe 2, and a horizontal pull pipe connecting portion 42, which has a substantially oval cross section and is continuously provided on an end portion on the side connecting with the horizontal pipe 3. Is equipped with. Vertical pipe connection part 41
Is provided with a flange 41A connectable to the flange 2A provided at the lower end of the vertical tube 2 formed in a cylindrical shape,
Further, the horizontal pulling tube connecting portion 42 is provided with a flange 42A connectable to the flange 3A provided at the end of the horizontal pulling tube 3 formed in a substantially oval cross section.

By the way, the bent pipe 4 is bent continuously on the large-diameter side (hereinafter referred to as the outer diameter part) 4a of the bending radius which is continuous with the pipe bottom 3a of the horizontal draw pipe 3 and on the pipe top 3b of the horizontal draw pipe 3. It has a small radius side (hereinafter referred to as an inner diameter portion) 4b, and side portions 4c, 4c that connect the outer diameter portion 4a and the inner diameter portion 4b. Further, the radius of curvature of the outer diameter side inner surface 42a of the horizontal pipe connecting portion 42 is formed to be smaller than the radius of curvature of the inner diameter side inner surface 42b. The side inner surfaces 42c, 42c are continuously provided. Therefore, the outer diameter side inner surface 42 a and the inner diameter side inner surface 42 of the horizontal pipe connecting portion 42
b, the side part inner surfaces 42c, 42c are respectively the tube bottom side inner surface 30a, the tube top side inner surface 30b, the side part inner surface 30c, of the horizontal drawing tube 3.
Continuing to 30c, the horizontal pipe connecting portion 42 of the curved pipe 4 and the horizontal pipe 3 are formed in the same cross-sectional shape. Further, from the vertical pipe connecting portion 41 to the horizontal pulling pipe connecting portion 42, the vertical pipe connecting portion 41 having a circular cross section shown in FIG. 3B is a horizontal pulling pipe connecting portion having a substantially oval cross section shown in FIG. 3A. 42 so that the inner surface of the outer diameter portion 4a and the inner diameter portion 4b of the outer diameter portion 4a and the inner diameter portion 4b are gradually increased so as to be continuous with a large cross-sectional area.
Are formed so that the distance between the inner surfaces of the inner surfaces gradually decreases.

That is, the bent pipe 4 has a vertical pipe connecting portion 41.
In an arbitrary cross section of the central portion in the axial direction sandwiched by the horizontal drawing pipe connecting portion 42, the radius of curvature of the inner surface of the outer diameter portion 4a is formed to be smaller than the radius of curvature of the inner surface of the inner diameter portion 4b. The radius of curvature of the inner surface of the diameter portion 4a and the inner surface of the inner diameter portion 4b are formed to be gradually smaller than the radius of curvature of the circular shape in the vertical pipe connecting portion 41, and from the vertical pipe connecting portion 41 to the horizontal pulling pipe connecting portion 42, It is formed of a continuous curved surface so that the same circular cross section as the vertical tube 2 approaches the substantially oval cross section similar to the horizontal draw tube 3.

The bent pipe 4 includes a vertical pipe 2 vertically arranged over each floor of the building, and a horizontal pipe 3 horizontally or downwardly inclined at each floor of the building. And the flange 41A of the vertical pipe connecting portion 41 of the bent pipe 4 is connected to the flange 2A of the vertical pipe 2, and the flange 42A of the horizontal pipe connecting portion 42 of the curved pipe 4 is connected to the horizontal pipe 3 The drainage device 1 is configured by connecting to the flange 3A.

Next, the operation of the drainage device 1 configured as described above will be described. The drainage flowing down into the vertical pipe 2 is as follows.
The curved pipe 4 is rectified by colliding with the inner surface of the gradually tapered outer diameter portion 4a, and is guided to the horizontal drawing pipe 3 at a speed faster than that of a pipe having a circular cross section. It never rises to the inside. Then, the wastewater flowing down to the horizontal draw pipe 3 is rectified by colliding with each other at the pipe bottom side inner surface 40a formed in a tapered shape, and the flow velocity thereof is increased as compared with a pipe having a circular cross section. The change becomes small, and the drainage smoothly flows out without the retention of drainage in the horizontal pipe 3.

Therefore, the drainage flows down in the curved pipe 4 and the horizontal draw pipe 3 with the air layer always present in the upper part thereof, and thus the pressure fluctuation of the negative pressure or the positive pressure is prevented in the pipe. In addition to the above, it is possible to reduce the change in flow velocity and at the same time rectify and flow out.

In this embodiment, the bent pipe 4 for guiding the drainage from the vertical pipe 2 to the horizontal pipe 3 has been described, but the same applies to the bent pipe 4 for guiding the drainage from the horizontal pipe 3 to the vertical pipe 2. be able to. In this case, the curved pipe 4 is formed so that the horizontal pipe connecting portion 42 having the same substantially oval cross section as the horizontal pipe 3 and the vertical pipe connecting portion 42 having the same circular cross section as the vertical pipe 3 are connected to each other. It may be formed so that the inner surface on the smaller diameter side of the bending radius gradually becomes thicker.

Further, the laterally drawn tube 3 is exemplified as one having a substantially oval cross section, but the tube bottom side inner surface 30a may be tapered, and the laterally drawn tube having the cross sectional shape as shown in FIG. It may be a tube. In this case, the horizontal pipe connecting portion 41 in the bent pipe 4 needs to be formed in the same sectional shape as that of the horizontal pipe 3.

Further, any bend pipe 4 may be used as long as it guides drainage between the vertical pipe 2 and the horizontal draw pipe 3, and besides the elbow, a TY joint as shown in FIG. 5, or both TY joints, 45 ° Y. It can also be applied to joints.

Further, the diameters of the connecting portions at both ends of the bent pipe may not be the same. However, making the diameter on the outflow side smaller than the diameter on the inflow side adversely affects the flow, and is not normally performed.

[0024]

As described above, according to the present invention, the bent pipe has a vertical pipe connecting portion formed in a circular shape corresponding to the circular cross section of the vertical pipe, and a laterally tapered pipe extending from both side portions to the pipe bottom portion. Consists of a horizontal draw pipe connection part formed in a cross-sectional shape that matches the pipe, and an inner surface on the large diameter side of the bend radius or an inner surface on the small diameter side of the bend radius of the curved pipe that is continuous with the inner surface of the pipe bottom side Since it is formed so as to gradually approach the cross-sectional shape at the vertical pipe connection portion from the cross-sectional shape at the vertical pipe connection portion, drainage from the vertical pipe to the horizontal pull pipe, or from the horizontal pull pipe to the vertical pipe, The change in the flow velocity can be reduced and at the same time the flow can be rectified and guided, and the inside of the pipe can be prevented from being blocked by drainage. As a result, the air layer always communicates with the inside of the pipe, pressure fluctuation does not occur in the drainage device, and it is possible to reliably prevent the water from breaking in the trap in the drainage device.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of a drainage device of the present invention.

FIG. 2 is a front view showing a part of FIG. 1 broken away.

FIG. 3 is a cross-sectional view of a horizontal pipe connecting portion of the bent pipe and the horizontal pipe, and a vertical pipe connecting portion of the curved pipe and the vertical pipe.

FIG. 4 is a cross-sectional view illustrating another cross-sectional shape of the horizontal drawn tube.

FIG. 5 is a front view showing a partially broken TY joint as an example of a bent pipe for guiding drainage from a horizontal draw pipe to a vertical pipe.

[Explanation of symbols]

 1 Drainage device 2 Vertical pipe 3 Horizontal drawing pipe 3a Pipe bottom part 3b Pipe top part 3c Side part 4 Bending pipe 41 Vertical pipe connecting part 42 Horizontal pulling pipe connecting part 4a Outer diameter part (larger diameter side of bending radius) 4b Inner diameter part (bending) Small radius side) 4c Side

Claims (2)

[Claims] 1. A drainage device comprising a vertical pipe, a horizontal draw pipe, and a bent pipe connected between the vertical pipe and the horizontal draw pipe to guide drainage from the vertical pipe to the horizontal draw pipe. The vertical pipe has a circular cross section, and the horizontal pipe is tapered from both sides of the vertical pipe to the bottom of the pipe, and the curved pipe has the same cross-sectional shape as the vertical pipe and communicates with the vertical pipe. Vertical pipe connection part and a horizontal draw pipe connection part that has the same cross-sectional shape as the horizontal draw pipe and communicates with the horizontal draw pipe, and bends from these vertical pipe connection parts to the horizontal draw pipe connection part. A drainage device characterized in that the inner surface on the large radius side is gradually tapered. 2. A drainage device comprising a horizontal pipe, a vertical pipe, and a bent pipe connected between the horizontal pipe and the vertical pipe to guide drainage from the horizontal pipe to the vertical pipe. The horizontal drawing tube is tapered from both sides to the bottom of the tube, the vertical tube is formed in a circular cross section, and the bent tube has the same cross-sectional shape as the horizontal drawing tube. And a horizontal pipe connecting part that is in communication with the vertical pipe having the same cross-sectional shape as the vertical pipe, and is bent from the horizontal pipe connecting part to the vertical pipe connecting part. A drainage device characterized in that the inner surface on the smaller radius side is gradually formed into a circular shape from a tapered shape.