WO2007026415A1

WO2007026415A1 - Catch basin

Info

Publication number: WO2007026415A1
Application number: PCT/JP2005/015870
Authority: WO
Inventors: Naoji Shimoda
Original assignee: Maezawakasei Kogyo Kabushiki Kaisha
Priority date: 2005-08-31
Filing date: 2005-08-31
Publication date: 2007-03-08
Also published as: JP4192204B2; CN101175889B; CN101175889A; JPWO2007026415A1; HK1117880A1

Abstract

A catch basin where a water drainage branch pipe can be connected to a water drainage main pipe at low cost, that can be installed easily, and where converging drainage water can be smoothly discharged without flowing back to the upstream side of the water drainage main pipe. A catch basin body (2) has an invert section (6) for rectilinearly communicating an inflow opening (4) and an outflow opening (5) and also has a cleaning opening (7) formed above the invert section (6). A connection opening (8) to which a branch body is connected is opened in the catch basin body (2), and the axis of the connection opening (8) extends sideways at an angle of 45º relative to a center axis that connects the inflow opening (4) and the outflow opening (5). A connection opening (15) angled at 45º relative to the axis direction of the branch body (3) is pivotally connected to the connection section (8) of the catch basin body (2). The diameters of the opposite openings, which are the connection opening (8) of the catch basin (2) and that of the connection opening (15) of the branch body (3), are expanded in the vertical direction so that the openings have a substantially perfect circular shape.

Description

Specification

Drainage

Technical field

[0001] The present invention relates to a drainage basin installed for branch connection of a drainage branch pipe to a drainage main pipe.

Background art

[0002] In general, drainage branch pipes connected to drainage facilities such as kitchen sinks, bathrooms, bathtubs, washstands, toilets, etc. in a building are routed under the floor of the building and penetrate the foundation of the building. The branch pipe is connected to the branch connection port of the drainage basin connected to the drainage main pipe buried outside the building on the site.

[0003] And this type of conventional drainage basin installed at the connecting part between the drainage main pipe and the drainage branch pipe is connected with the drainage branch pipe in parallel with the drainage main pipe. A parallel merging drainage basin that joins the drainage main at an angle of ° is known. In the drainage dredger where the combined drainage of this drainage branch pipe joins the main drainage at an angle of 45 °, there is an advantage that the combined drainage from the drainage branch pipe is smoothly joined without flowing back to the upstream side of the drainage mainstream. .

[0004] However, there is a case where there is a drop between the drainage main pipe connected to the drainage pit buried in the ground and the drainage branch pipe of the building's indoor strength. In many cases, pipes that absorb the head by vertically dropping the drainage branch pipe using 90 ° elbow are used. In the configuration that uses this elbow to absorb the drop between the drainage main pipe and the drainage branch pipe, if the drop between the drainage main pipe and the drainage branch pipe is small, if the drainage branch pipe is dropped vertically, the drainage branch There was a problem that the side of the elbow connected to the pipe was deeper than the head of the drainage basin, beyond the head of the drainage basin, beyond the head of the drainage main pipe and the drainage branch pipe.

[0005] Therefore, an elbow having a connection port opened in the 45 ° angle direction is connected to the branch body connection port to the drainage dredger main body where the drainage from the drainage branch pipe joins the drainage mainstream at a 45 ° angle. In addition, a configuration has been proposed in which the elbow and the drainage branch pipe are connected by a spherical universal joint, and the angle at which the drainage branch pipe is connected to the drainage main pipe can be arbitrarily adjusted (see, for example, Patent Document 1). . Patent Document 1: Japanese Patent Laid-Open No. 11-324094 (Page 2, Page 3, Figure 1, Figure 2) Disclosure of Invention

Problems to be solved by the invention

[0006] The problem to be solved is that, as described in Patent Document 1, the elbow connected to the branching body connection port of the drainage basin body and the drainage branch pipe are connected by a spherical universal joint. In this way, the angle at which the drainage branch pipe is connected to the drainage main pipe can be adjusted arbitrarily, so that the elbow connection port side is connected to the drainage main pipe and drainage branch from the branch body connection port of the drainage main body. Although it does not go deeper than the drop with the pipe, the structure is complicated and costly.

[0007] The present invention has been made in view of the above problems, and can arbitrarily adjust the gradient at which the drainage branch pipe is connected to the drainage main pipe, and the drainage branch pipe can be connected to the drainage main pipe at low cost. It is easy to provide a drainage basin that can drain smoothly without merging the drainage that flows into the upstream of the mainstream.

Means for solving the problem

The drainage basin of the present invention has an inflow port, an outflow port, an invert portion that linearly connects the inflow port and the outflow port, and a cleaning port formed above the invert portion, and the inflow A drainage basin body that opens a branch body connection port that extends sideways at an angle of 45 ° with respect to the central axis that connects the mouth and the outlet, and a branch body connection port of the drainage body A substantially cylindrical branch body that rotatably connects a connection port that is opened at an angle of 45 ° with respect to the axial direction, and the branch body connection port of the drainage drainage body and the connection port of the branch body, The diameter of the opening opposite to the diameter is expanded in the vertical direction so as to be a substantially perfect circle.

[0009] And, the combined drainage of the drain branch pipe that flows into the invert part communicating with the invert part communicating with the inlet and outlet of the drainage basin body flows into the invert part at an angle of 45 °. The reverse force that flows to the upstream side of the invert part is also increased in the vertical direction so that the opening shape of the branch body connection port of the drainage basin body and the connection port of the branch body becomes a substantially circular shape. Therefore, the branch connection port and the connection port of the branch body have a substantially circular shape without being reduced in diameter, and the diameter is not reduced. Drain the main drainage pipe regardless of the merging gradient due to the drop between the pipe and the drainage main pipe. The gradient to which the branch pipe is connected can be arbitrarily adjusted.

The invention's effect

[0010] The drainage basin of the present invention can adjust the gradient at which the drainage branch pipe is connected to the drainage main pipe, and the combined drainage from the drainage branch pipe flows back to the upstream side of the invert part where the drainage mainstream flows. In addition, the slope at which the drainage branch pipe is connected to the drainage main pipe, which is related to the head between the drainage main pipe and the drainage branch pipe, can be arbitrarily adjusted, and the combined drainage with the drainage branch pipe power is throttled at the branch connection port. Smooth drainage without being carried out.

Brief Description of Drawings

FIG. 1 is a front view of a drainage basin showing an embodiment of the present invention.

[Fig. 2] Same as above.

[Fig. 3] It is a side view of the downstream force of the same drainage as above.

FIG. 4 is a front view showing a state where the branch body of the drainage basin shown in FIG. 1 is rotated upward.

FIG. 5 is a front view showing a state in which the branch body of the drain shown in FIG. 1 is removed.

FIG. 6 is a rear view of the same branched body.

FIG. 7 is a longitudinal side view of the connecting portion between the drainage basin body and the branch body.

Explanation of symbols

[0012] 1 Drainage

2 Drainage body

3 Bifurcation

4 Inlet

5 Outlet

6 Invert club

7 Cleaning mouth

8 Branch connection port

15 Connection port

BEST MODE FOR CARRYING OUT THE INVENTION

Next, an embodiment of a drainage basin according to the present invention will be described with reference to the drawings. FIG. 1 is a front view of a drainage basin according to an embodiment of the present invention, FIG. 2 is a plan view of the same drainage basin, and FIG. 3 is a side view from the downstream side of the same drainage basin.

[0015] The drainage basin 1 is formed of a drainage basin body 2 and a branch body 3 which are formed in a manner similar to vinyl chloride resin.

[0016] This drainage basin body 2 has an inflow port 4 that opens at one end surface, an outflow port 5 that opens at the other end surface, and an invert portion 6 that communicates the inflow port 4 and the outflow port 5 in a straight line. Further, the cleaning port 7 has a receiving opening opened above the invert portion 6, and a rising pipe (not shown) that opens to the ground surface is connected to the cleaning opening 7.

[0017] Furthermore, the drainage basin body 2 has a branch extending toward the inflow port 4 at an angle of 45 ° toward the side with respect to the axis connecting the inflow port 4 and the outflow port 5. The body connection port 8 is branched and opened, and the opening surface of the branch body connection port 8 is parallel to the axis connecting the inflow port 4 and the outflow port 5. An annular joint surface 9 is formed on the outer peripheral portion of the branch body connection port 8, an annular fitting portion 10 is formed on the outer peripheral edge of the joint surface 9, and an outer edge of the fitting portion 10 is formed. A plurality of engaging protrusions 12 are provided projecting toward the center side.

Next, one end of the branch body 3 connected to the branch body connection port 8 of the drainage basin body 2 is connected to an angle direction of 45 ° with respect to the axial direction of the branch body 3. An opening 15 is formed, and an annular cover surface 16 is formed on the outer peripheral portion of the connection port 15, and the outer peripheral edge of the cover surface 16 is rotatably fitted to the annular fitting portion 10. A fitted portion 17 is formed, and this engagement prevents the engagement protrusion 12 from being engaged with the outer surface of the surface 16 and coming off. Further, the other end of the branch body 3 is bent in the 45 ° direction, and the other end is formed in the connection port 18 of the receiving port for connecting the drainage branch pipe.

In addition, an O-ring 19 is interposed between the fitting portion 10 of the branch body connection port 8 of the drainage main body 2 and the fitting portion 17 of the branch body 3 to maintain liquid tightness.

[0020] Then, with respect to the axis connecting the inlet 4 and the outlet 5 of the drainage basin body 2, the axis extends sideways at an angle of 45 ° to connect the inlet 4 and the outlet 5 to each other. The opening surface of the branch connection port 8 that is parallel to the connecting axis 8 has an elliptical shape with a major axis in the horizontal direction, and a connection port having an angle of 45 ° with respect to the axis direction of the branch 3 15 Although the opening surface is an ellipse with the major axis in the horizontal direction, the branch body connection port 8 and the branch body 3 connection port 15 face each other The shape of the opening to be formed is a substantially perfect circle shape whose diameter is increased in the vertical direction.

[0021] It should be noted that a base portion 20 is provided at the bottom of the drainage basin body 2, and this base portion 20 flows so that the drainage gradient of the invert portion 6 connecting the inlet 4 and the outlet 5 is 1Z100 or more. It is formed in an inclined shape so that the inlet 4 side becomes higher.

Next, the operation of this embodiment will be described.

[0023] For example, a drainage main pipe is piped along the outside of the foundation of the building on the site of the building, and the drainage main is connected to the inlet 4 of the drainage dredge main body 2 at a location where the drainage branch pipe joins the drainage main pipe. Connect the upstream side of the pipe and connect the downstream side of the drain main pipe to the outlet 5.

[0024] Then, drainage branches connected to drainage facilities such as kitchen sinks, bathrooms, bathtubs, washstands, toilets, etc. of buildings are piped under the floor of the building, and these drainage branches penetrate the foundation of the building. Then, pipe it in parallel with the outdoor drainage main pipe, and connect the end of this drainage branch pipe to the other end connection port 18 of the branch body 3. At this time, if there is a drop such that the drainage branch pipe is installed at a position higher than the drainage main pipe, the branch body 3 is rotated as shown in Fig. 4, and the position of the connection port 18 of the branch body 3 is reached. The slope at which the drainage branch pipe is connected to the drainage main pipe can be arbitrarily adjusted by connecting the height of the drainage branch pipe to the end of the drainage branch pipe.

[0025] In this way, by connecting the drainage branch pipe by rotating the branch body 3 connected to the drainage main body 2 in accordance with the height position of the drainage branch pipe, the gradient can be reduced. Therefore, even if the drop between the main drainage pipe and the drainage branch pipe is small, it can be handled.

[0026] In addition, the combined drainage of drainage branch pipe flowing into the invert part 6 communicating with the inlet 4 and the outlet 5 of the drainage main body 2 from the branch body connection port 8 is 45 ° to the invert part 6. Therefore, the reverse force that flows to the inlet 4 on the upstream side of the drainage main pipe is less likely to occur, and the opening between the branch port 8 of the drainage basin 2 and the connection port 15 of the branch 3 Since the diameter is expanded in the vertical direction so as to be a substantially circular shape, the opening surface of the branch body connection port 8 and the connection port 15 is not the elliptical shape in which the vertical direction is narrowed. Since the open surfaces of the connection port 8 and connection port 15 are enlarged in the vertical direction into a substantially circular shape, the drainage that joins the drainage branch pipe flows smoothly into the drainage basin body 2 without being throttled. However, the combined drainage flows smoothly regardless of the merging gradient due to the drop between the drainage branch pipe and the drainage main pipe.

[0027] In addition, the position where the slope of the drainage branch pipe drainage flowing through the branch body 3 is 1Z100 Stopper means for preventing the rotation of the branch body 3 so that the drainage gradient does not become 1Z100 or less, for example, a regulation projection and a branch body provided in the vicinity of the branch body connection port 8 of the drainage body 2 If a stopper means that prevents the rotation of the branch body 3 by engaging with the engagement protrusion provided in the vicinity of the connection port 15 of 3 is provided, the combined drainage channel that flows into the drainage basin body 2 from the drainage branch pipe is provided. It can prevent horizontal or reverse slope.

[0028] Further, at the position where the gradient of the drainage channel from the drainage branch pipe flowing in the branching body 3 is vertical, the rotation of the branching body 3 is prevented so that the drainage gradient does not exceed the vertical state. Stopper means to be connected, for example, the restricting projection provided in the vicinity of the branch body connected port 8 of the drainage main body 2 and the engaging projection provided in the vicinity of the connection port 15 of the branch body 3 are engaged with each other. If the stopper means for preventing the rotation of the drainage basin is provided, it is possible to prevent the construction in which the inlet 4 and the outlet 5 of the drainage basin body 2 are connected to the drainage main pipe in reverse.

Industrial applicability

[0029] The drainage basin of the present invention is drained by joining drainage drainage facilities such as bathrooms, bathtubs, wash basins, toilets, etc. in the building to drainage main pipes piped on the site of the building. In the drainage system that drains the wastewater into the sewer by connecting this drainage main pipe to the sewage main pipe buried in the road outside the site, etc., it is used as a place where the drain main pipe and drain branch pipe in the site merge. Is.

Claims

The scope of the claims

An inlet, an outlet, an invert portion that linearly connects the inlet and the outlet, and a cleaning port formed above the invert portion, and a central axis that connects the inlet and the outlet A drainage drainage main body with an opening at the branch body connection port that extends sideways at an angle of 45 ° with respect to the axis,

A substantially cylindrical branch body that rotatably connects a connection port at an angle of 45 ° in the axial direction to the branch body connection port of the drainage basin body.

With

A drainage basin characterized in that the shape of the opening opposite to the branch body connection port of the drainage basin body and the connection port of the branch body is expanded in the vertical direction so as to be a substantially circular shape.