JPH111959A - Catch basin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To collect water smoothly and select a water collection direction optionally by making one end of a water collecting short pipe penetrate the side wall of the main body of a catch basin and meet a nearly parallel channel, forming an invert portion and connecting the other end to a water collecting pipe connector and a pipe shaft rotatably. SOLUTION: One ends of water collecting short pipes 21, 22 penetrate the side wall of a catch basin 1 and form inlets 2, 2, parallel watercourses approach gently a vertical face including the central axis of an outlet 3 at the bottom, meeting each other, and continue to an invert portion 5 leading to the outlet 3. Sewage introduced from the water collecting short pipes 21, 22 and meet each other at the invert portion 5, forms a laminar flow in nearly parallel multiple watercourses and flows without interference from other watercourses. Therefore, there is no retention or reverse flow of sewage in any part of the system, and smooth water collection is possible. Water collecting pipe connectors 23, 24 are connected to the water collecting short pipes 21, 22 through sockets 61, 62. Therefore, even only one catch basin makes it possible to collect water from various angles and to conform to a change in water collection positions flexibly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a drainage basin.

[0002]

2. Description of the Related Art Smooth collection of generated sewage is one of the most important functions in a series of sewage treatment functions of collecting, guiding, purifying and discharging sewage from various places. Various members including a drainage basin have been developed in order to measure the size of the basin. In particular, a three-way merging drain basin for merging a plurality of collecting pipes and a merging drain basin more than this have been partially developed and used.

[0003] However, because of the problem of sewage retention or backflow at the junction due to differences in the type and flow rate of sewage flowing through each collecting pipe, a uniform product lineup corresponding to the type and flow rate of individual sewage. Drain basins are created, the types and sizes of drain basins increase more and more, production lots are subdivided at the production site, and it becomes difficult and difficult to organize the process of producing drain basins of each type and size. It has become increasingly difficult to manage the inventory of products and to deliver them to consumers. In addition, even for customers, not only does the labor required to find the drainage basin required from a product group of many types and sizes become large, but also it becomes difficult to respond to sudden design changes at the laying construction site or due to other reasons. ing.

[0004] In view of the current situation, there has been proposed a multi-junction drainage basin capable of coping with a change in the inflow position of sewage. For example, a sewage basin disclosed in Japanese Patent Application Laid-Open No. 6-129001 has a branch pipe that is inclined approximately 45 degrees toward the inflow pipe with respect to the line of the inflow pipe and the discharge pipe that are linearly joined at the invert portion. A sewage basin to be merged, wherein the drain pipe joined to the branch pipe is a line in a direction parallel to the inflow pipe and the discharge pipe and a line in a direction perpendicular to the drain pipe, as a joint between the branch pipe. The selection can be made by rotating the used elbow.

However, in the sewage basin disclosed in Japanese Patent Application Laid-Open No. 6-129001, the width of selection is limited to only two directions, parallel and orthogonal, and the invert portion is inclined approximately 45 degrees toward the inflow pipe. Because of the merging of the branched pipes, there is a great risk of stagnation and backflow of the sewage, and depending on the type of sewage, there is a possibility that the solids may stay due to the backflow, or the pipe line may be blocked due to drying and solidification.

The drainage basin disclosed in Japanese Patent Application Laid-Open No. 4-165196 has an inflow pipe, which is linearly joined at an inverting portion, on the inflow pipe side, and furthermore, at an angle of 45.degree. Is a drainage basin that joins two inflow pipes that intersect at an angle of from each other, and the drainage of an inflow pipe that is linearly connected to the outflow pipe is a drainage from the two inflow pipes that intersect at an angle of 45 degrees to the left and right. It is stated that by making the flow path in the invert portion as long as possible until the inflow portion merges, the drainage of the inflow pipe can be partially merged without stagnation and discharged from the outflow pipe.

However, in the invert section, the right and left 45
If the wastewater flows linearly at a large angle of degree so as to block the flow path, the above-mentioned Japanese Patent Laid-Open No. 4-165 is disclosed.
As can be seen in the embodiment described in Japanese Patent Application Publication No. 196, one of the flow paths is blocked or back-flowed by each flow rate, and in a severe case, the drainage pipe may be blocked. .

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned facts, and has as its object the purpose of stagnation, backflow, etc., irrespective of the drainage flow rates of a plurality of converging collection pipes. An object of the present invention is to provide a multifunctional drainage basin that can smoothly collect water and flow down to a sewer main pipe without any trouble, and can arbitrarily select a collection direction of a plurality of wastewaters.

[0009]

According to the first aspect of the present invention,
A drainage basin having a plurality of inflow ports and one outflow port, wherein one end of a short water collecting pipe constituting the plurality of inflow ports penetrates the drainage basin body side wall and is substantially parallel to the outflow port. These substantially parallel flow passages are gently approached to a vertical plane including the center axis of the outlet at the bottom of the drainage basin main body, and are substantially linear to the outlet. A converging invert portion is formed, and the other end of the short water collecting pipe is
The gist of the present invention is a drainage basin characterized by being rotatably connected to each water collection pipe joint and its pipe shaft.

In the present invention, the material of the drainage basin is not particularly limited, but examples thereof include a synthetic resin such as hard vinyl chloride resin and low-expanded polypropylene.

In the present invention, the plurality of inflow ports provided in the drainage basin are formed such that a short water collecting pipe constituting the inflow port penetrates the side wall of the drainage basin main body. , And a flow path having a gradient that gradually slopes downward is formed. The flow path from the water collecting short pipe to the outlet may be connected by a continuous slope, but a step is formed in a part in a range where trouble such as remarkable stagnation does not occur. Channel may be used.

The number of water collecting short pipes provided on the outer wall of the main body of the drainage basin is not particularly limited, and is appropriately determined by the number of outflow ports, the outflow amount, or the drainage capacity of the drainage basin. For example, in the drainage of an average detached house, the number is two to three, and the other drainage is three to four. The number of collecting short pipes provided on the outer wall of the main body of the drainage basin is 3
If more than one, due to the size of the drainage basin body, the diameter of the drainage pipe, etc., at least one water collecting short pipe should merge at a slightly larger angle with the other two water collecting short pipes. In such a case, the length of the outside of the drainage basin outside of the drainage basin of the water collection short pipe may be slightly longer, or the slope of the drainage may be slightly increased so that each drainage sent to the invert section is What is necessary is just to make it easy to form a laminar flow while keeping substantially parallel.

The plurality of substantially parallel flow paths formed by the plurality of water collecting short pipes are gently in close proximity to a vertical plane including the central axis of the discharge short pipe constituting the outlet at the bottom of the drainage basin main body. It merges and continues to a merging invert section consisting of a substantially linear flow path reaching the outlet. The angle formed by the central axes of the plurality of substantially parallel flow paths formed by the plurality of water collecting short pipes is preferably 10 degrees or less.

[0014] The plurality of substantially parallel flow paths gently approach the vertical plane including the central axis of the discharge short pipe and do not merge, and one of the flow paths is not connected to the other flow path. If it is configured to merge from a direction having a larger angle, the flow of the sewage having the larger angle sometimes causes the sewage flowing through the other flow path to stay and flow backward to make it difficult to flow. In particular, if the sewage flowing through the other flow path is sewage having a large amount of solids, the solids solidify and stick to the inner wall of the pipe due to long-term stagnation. In such a case, there is a possibility that a trouble such as a blockage of the pipeline is caused.

The other end of the short water collecting pipe is rotatably connected to each water collecting pipe joint and its pipe axis. The direction in which the water collecting pipe joint is connected to the water collecting short pipe can be arbitrarily set from a direction in which the water collecting short pipe is connected straight to a pipe axis direction to a direction in which the water collecting short pipe is bent laterally at an appropriate angle. Generally, the water collecting short pipe is cut at an appropriate angle in the above range, and a water collecting pipe joint having the same cut surface as the cut surface is turned 180 degrees,
If the connection is made at the same position, the water collecting direction of the water collecting pipe is limited to two directions, but the water collecting pipe can be connected to the joint of the connecting surface of the water collecting pipe and the water collecting pipe without any processing.

The water collecting short pipe and the water collecting pipe joint are, for example, inclined at 45 degrees, that is, a water collecting short pipe having a connecting surface formed at an angle of 45 degrees with respect to the axis of the water collecting short pipe and the water collecting pipe joint. Pipes and water collection fittings. If the water collecting pipe is connected using the water collecting pipe joint, sewage can be collected from two directions: a direction parallel to the axis of the discharge pipe joint and a direction orthogonal to the axis. Therefore, when two of the above water collection pipe joints are used, a single drainage basin that collects and condenses sewage from 90 degrees left and right in the axial direction of the short water collection pipe and the discharge pipe joint, A drainage basin that collects and collects sewage from the left or right 90-degree direction and 180-degree direction of the axial direction of the pipe and the discharge fitting, and two systems of sewage from the 180-degree direction of the axial direction of the collection short pipe and the discharge fitting. Using a cap to kill one of the collection pipe joints using a cap, and collecting and collecting a single drainage basin from the left or right 90 ° direction of the axial direction of the short collection pipe and the discharge pipe joint. It can be used as a single drainage basin or the like from the 180-degree direction of the axial direction of the short pipe and the discharge pipe joint.

The angle of the water collecting short pipe and the water collecting pipe joint with respect to the axis is not particularly limited, and may be set to an arbitrary angle, and further includes a rotatable connection mechanism. Connect the collecting pipe joint to the collecting short pipe via the fitting, guide the sewage from a horizontal angle of 180 degrees from the vertical direction to the drainage basin, and collect water without worrying about stagnation or backflow be able to.

The water collection pipe joint having the rotatable connection mechanism is not particularly limited.
A rubber ring is formed by fitting a water collecting pipe joint having a receiving port provided with an annular groove on the inner wall and a water collecting pipe provided on an outer wall near the distal end with an annular ridge fitted in the annular groove of the water collecting pipe joint. And a water-collecting pipe joint that is connected in a watertight manner. When using the water collection pipe joint having the rotatable connection mechanism,
Using a slightly thick water collecting pipe joint processing pipe, cut the pipe at an angle of 7.5 degrees with respect to the axis of the processing pipe, for example, at an angle of 7.5 degrees with respect to the pipe axis, and inward from the oval cut surface. Smooth off the inner wall of the pipe to make the inner diameter of the pipes of the joints whose ends are connected to a perfect circle. The connection can be made without forming a portion where sewage may stay.

According to a second aspect of the present invention, the water collecting pipe joint connected to the short water collecting pipe is composed of two joint members connected in a rotatable manner with respect to the pipe axis and connected in front and back. The connection direction on the upstream side of the joint member is the same as the water collection direction of the water collecting short pipe, and the connection direction on the upstream side of the other one coupling member is the same as the water collecting direction of the water collecting short pipe. The gist of the drainage basin according to claim 1, wherein the direction of the drainage basin is different.

The water collecting pipe joint connected to the water collecting short pipe of the drainage basin of the present invention is composed of two connecting members connected in front and back, and the connection direction of the one connecting member on the upstream side is the above water collecting short pipe. It is the same direction as the water collecting direction of the pipe, and the connection direction on the upstream side of the other one joint member is different from the water collecting direction of the short water collecting pipe. The water pipe means a coupling member having a rotation function that enables connection from each direction on a semicircle extending 180 degrees from the left horizontal side to the right horizontal side in the upstream direction of the coupling member, and other couplings The member means a joint member having a function of specifying the lateral direction of the water collecting pipe joint, and the functions of both are combined to be biased in the upstream direction from the left horizontal side to the right horizontal side of the water collecting pipe joint. This means that water collection pipes can be connected radially to all points of the hemisphere.

Either of the two joint members connected vertically above and below the water collecting pipe joint connected to the water collecting short pipe may be connected first.

In the drainage basin of the present invention, as described above, a short water collecting pipe constituting a plurality of inlets penetrates the drainage basin main body side wall,
A substantially parallel flow passage toward the outlet is formed, and these substantially parallel flow passages gently join the vertical surface including the center axis of the outlet at the bottom of the drainage basin main body, and join the outlet. Since a substantially straight-line merging invert portion is formed, the plurality of sewage waters of each system introduced from the collecting short pipe and merging in the inverting portion connected thereto are formed in the plurality of substantially parallel flow paths. The laminar flow is formed in each of the above, and they flow without disturbing each other, and even if there is a fluctuation in the flow rate of the sewage of each system, even the sewage of the system with a small flow rate, the sewage which becomes the main flow is Since the water flows while being sucked into the flow, the water can be smoothly collected and discharged from the outlet without causing the sewage in a part of the system to stay or flow backward.

Further, in the drainage basin according to the first aspect of the present invention, the water collecting short pipe and each water collecting pipe joint are rotatably connected to the pipe axis, so that only one drainage basin is used. , Wastewater can be collected in the drainage basin from various angles,
In response to a change in the water collecting position caused by a design change, a design error, or the like, it is possible to flexibly respond to the drainage line laying site without causing the sewage of the partial system to stay or flow backward. Accordingly, the types of the drainage basins can be integrated and abolished, and the manufacturing process management by the manufacturer and various managements of stock / shipping by the wholesaler can be facilitated.

According to a second aspect of the present invention, in the drainage basin, the water collection pipe joint comprises:
It consists of two joint members connected in a row back and forth with respect to the pipe axis, and the connection direction on the upstream side of the one joint member is the same as the water collecting direction of the water collecting short pipe. Since the connection direction on the upstream side of the other one of the joint members is different from the water collection direction of the water collecting short pipe, the connection direction is different from the water collecting direction of the water collecting short pipe. By replacing only the members, most of the hemispherical surface created by the sewage source at any angle above the height that can form a natural flow (substantially horizontal plane) is located at a position deviated upstream of the drain basin. From position 1
By using only one drainage basin, sewage can be collected in the drainage basin from various angles. Without the risk of retaining or backflowing sewage,
It is possible to respond flexibly at the construction site of the drainage line. Therefore, the types of the drainage basins can be integrated and abolished, thereby facilitating management of the manufacturing process of the manufacturer and various managements of stock / shipment of the wholesaler.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described.
Although described with reference to the drawings, the present invention is not limited to these examples.

Embodiment 1 FIG. 1 is a plan view showing an example of a drainage basin according to the present invention. Reference numeral 1 denotes a main body of a low-foam polypropylene merged drainage basin having a nominal diameter of 200 mm.
Are water collecting short pipes having a nominal diameter of 100 mm formed by penetrating the side wall of the drainage basin body 1 and forming the inlets 2, 2. At a point gently approaching a vertical plane including the central axis of the outlet 3, and continuing to the invert portion 5 reaching the outlet 3.
The angle formed by the substantially parallel flow paths formed by the central axes of the short water collecting tubes in the invert section 5 is about 10 degrees.

Water collecting pipe joints 23 and 24 are rotatably connected to the pipe ends of the water collecting short pipes 21 and 22, respectively. Receiving ports 61 and 62 are formed at pipe ends of the collecting short pipes 21 and 22, and the collecting pipe joint 23 and
A groove is provided in which a sealing rubber ring fitted to the outer surface of the outlet of 24 is locked. On the other hand, the outlets of the water collecting pipe joints 23 and 24 are inserted and connected to the receiving ports 61 and 62 of the water collecting short pipes 21 and 22, respectively. Pipe end and water collecting pipe joint 2
The tube ends of the inlets 3 and 24 are each cut at 45 degrees, and each cut surface has an elliptical shape having a longer diameter of about 1.4 times the diameter of these tubes. Therefore, the water collecting pipe joints 23 and 24 are
As shown in FIG. 1, it is possible to collect sewage in the four directions of the right and left directions of the drawing short pipes 21 and 22 and the straight line above the drawing which is orthogonal to the drawing. Incidentally, 31
Is a discharge fitting connected to the effluent outlet 3, and the other end is a receiving port 63 like the receiving ports 61 and 62 of the water collecting short pipes 21 and 22, and the inner surface of the receiving port 63 has A groove is provided for engaging a sealing rubber ring fitted on the outer surface of the outlet of the discharge pipe.

(Embodiment 2) The water collecting pipe joint 23 of Embodiment 1
A drainage basin was produced in the same manner as in Example 1 except that the water collecting pipe joint shown in FIG. In FIG. 2, the drainage basin main body 1, the water collecting short pipes 21 and 22, the inlet 2, the bottom 4, the invert portion 5, the outlet 3, and the discharge pipe joint 31 are the same as those used in the first embodiment. , FIG.
The code used in the above is used as it is.

In FIG. 2, the water collecting pipe joint 20 is connected to the pipe axis so as to be freely rotatable with respect to two front and rear connecting members (only the water collecting pipe joint 20 on the left side of the drawing will be described) 71. And 72. Joint member 71 rotatably connected to the tube axis of the short water collecting pipe 21
The connection direction on the upstream side is the same direction as the water collection direction of the water collecting short pipe 21, and the sewage collecting end receiving port 66 of the coupling member 72 connected to the receiving port 64 on the upstream side of the coupling member 71.
Has a function of rotating 360 degrees.

The joint member 72 connected to the upstream side of the joint member 71 is rotatably connected to the tube axis of the joint member 71, similarly to the joint member 71, and is connected to the upstream side. The direction is different from the water collecting direction of the water collecting short pipe. Therefore, the joint member 72 has a function of selecting a water collecting direction.

FIG. 3 shows a vertical section including the pipe axis of the water collecting pipe joint 20 taken out. The upstream side of the joint member 71 is a receiving port into which the downstream side insertion port 81 of the joint member 72 is inserted. The receiving port 64 is configured so that a sealing rubber ring 91 fitted around the outer end of the insertion port 81 of the joint member 72 is locked in the locking groove 10. .

The joint member 72 has a water collecting pipe receiving port 66 at one end, and a 45-degree bend pipe A having the other end formed as an inlet 82 in which a sealing rubber ring 92 is fitted to the outer wall. It has a 45-degree elbow B having an upstream-side receiving port 65 into which the inlet 82 of the 45-degree bend pipe A is inserted, and the other end serving as the downstream-side outlet 81. 65 has a function which can be connected rotatably.

In order to connect the joint member 72 to the joint member 71, the receiving port 66 on the upstream side of the joint member 72 is roughly aligned in the direction of the terminal end of the water collecting pipe, and according to a conventional method, if necessary,
Insert and fit using lubricant. Thereafter, the connecting portion of the rotatable joint members 71 and 72 was forcibly rotated to perform fine adjustment, thereby collecting waste water at the end of the water collecting pipe at a desired position.

In order to evaluate the performance of the drainage basin obtained in the above example, the drainage basin was used in the construction of a drainage line in a 50-family detached housing estate. Each drainage line was able to construct individual house drainage having different discharge directions of wastewater using only a small number of members by using an allowable narrow space.
In addition, in a simulation test using artificial sewage of sewage and miscellaneous wastewater, no stagnation or backflow trouble was found in sewage of another system due to the flow of one system, despite changes in the sewage flow rate of each system. Was.

[0035]

Since the drainage basin of the present invention is constructed as described above, it is possible to smoothly collect sewage water from a plurality of systems that merge with each other without trouble such as stagnation or backflow, and to flow down to the sewer main pipe. Can be. In addition, the drainage basin according to the first aspect of the present invention can select and use many wastewater collecting directions in one drainage basin, so that a sudden design change or a change in the wastewater collecting direction due to a design mistake can be made. However, it is possible to respond flexibly at the construction site. Furthermore, the drainage basin according to the second aspect of the present invention has the following features.
By replacing only a part of the water collecting pipe joints in the drainage basin, it is possible to selectively use the water collecting direction in almost all directions. Therefore, it is possible to consolidate the production and sales items of the production factory and the wholesaler, to streamline the production process and the delivery business, and to contribute to the economical design of the drainage line, etc.

[0036]

[Brief description of the drawings]

FIG. 1 is a plan view showing an internal conversion part of an example of a drainage basin of the present invention except for a lid of an inspection hole.

FIG. 2 is a plan view showing another example of the drainage basin of the present invention.

FIG. 3 is a cross-sectional view illustrating an example of a water collection pipe joint of the drainage basin illustrated in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drain basin main body 2 Inlet 21, 22 Water collecting short pipe 20, 22, 23 Water collecting pipe joint 3 Outlet 31 Discharge pipe joint 4 Bottom 5 Invert part 61, 62, 63, 64, 65, 66 Receptacle 71, 72 Joint Member 81, 82 Inlet 91, 92 Rubber ring for sealing 10 Lock groove

Claims (2)

[Claims] 1. A drainage basin having a plurality of inflow ports and one outflow port, wherein one end of a short water collecting pipe constituting the plurality of inflow ports penetrates a drainage basin main body side wall, and is connected to a drainage basin. A substantially parallel flow path toward the outlet is formed, and these substantially parallel flow paths gently join the vertical surface including the center axis of the outlet at the bottom of the drainage basin main body, and reach the outlet. Characterized by forming a substantially linear converging invert portion, and the other end of the short water collecting pipe is rotatably connected to each water collecting pipe joint and its pipe axis. Masu. 2. A water collecting pipe joint connected to a short water collecting pipe comprises two connecting members connected in a row back and forth so as to be rotatable with respect to a pipe axis thereof, and is provided on an upstream side of said one connecting member. The connection direction is the same direction as the water collection direction of the water collection short pipe, and the connection direction on the upstream side of the other one coupling member is different from the water collection direction of the water collection short pipe. The drainage basin according to claim 1, wherein