JP2005307733A - Catch basin for draining rainwater - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rainwater drainage system being used as the rainwater drainage system corresponding to a building-appearance design and high constructive needs and being capable of also conducting in-wall hidden piping. <P>SOLUTION: A catch basin for draining rainwater is composed of a rainwater collecting material such as an eaves gutter, a roof drain or the like, a plurality of risers having a small diameter and being connected to the rainwater collecting material and the catch basin connected to a sewerage. In the catch basin for draining rainwater, a pipe group in which front ends are directed upwards is installed to the catch basin and the risers are connected to each other end of the pipe group. The riser: 2, the catch basin: 4, a pipe: 5, the pipe front end: 5a, pipe other end: 5b, a nozzle: 6, the rainwater collecting material: 7 and a siphon: 8. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention opens to a collecting basin for rainwater drainage.

  General rainwater drainage systems are usually installed separately from the eaves installed at the eaves and the flat roof roof drain, with 4 to 8 rainwater drainage pipes (tube diameter D = 50 mm) exposed to the outer wall surface and lowered to the site level. Combined with the site drainage system and collected in a drainage collection tank. And it joins miscellaneous drainage sewage etc. and is connected to the drain pipe of a public sewer.

  Since these conventional rainwater vertical pipes are installed exposed on the outer wall, piping construction is difficult under construction conditions that hinder architectural exterior design or narrow site conditions, and installation problems such as construction time are required. there were. Furthermore, when the internal cleaning of the pipes (the vertical pipe and the horizontal pipe) is necessary, it is necessary to carry out the work at a high place and to perform the vertical pipes around the building at each position.

  However, it is difficult to install the site drainage system outdoors, or there is a request from the architectural design request that the rainwater standpipe is not exposed to the outside wall. It becomes a drainage system that requires a large number of drainage pipes. Furthermore, it is still sufficient if an inspection and cleaning port is provided on the first floor, but there are cases where it cannot be planned. In this case, it is necessary to change the plan to the main structure of the building, such as raising the floor and providing a separate piping bit space. However, there are still problems such as wasteful construction plans and difficult maintenance.

  The present invention has been made in view of the prior art as described above, and provides a rainwater drainage system that can also be used as a rainwater drainage system that responds to architectural exterior design and high workability needs, and can also be used as a concealed pipe in the wall. is there.

  The gist of the present invention is that a rainwater collecting material such as eaves or roof drain, a plurality of small-diameter, preferably flexible, standing pipes connected thereto, and a ground pipe placed on or in the ground. It is composed of a collecting rod buried and connected to the sewer, and the collecting rod is provided with a pipe group having an upward tip, and the plurality of standing pipes are directly connected to the other ends of the pipe group. It is applied to the rainwater drainage dredging.

  Usually, it is attached to a rainwater drainage collecting rod with a nozzle that discharges rainwater on the side of the collecting rod at the end of the pipe or a control plate that discharges rainwater in the shape of a shower on the side of the collecting rod. is there. In general, the nozzle and control plate attached to the end of the pipe are detachable, and the inside of the vertical pipe can be cleaned by removing the nozzle and the control pipe from the end of the pipe. is there.

  In addition, it is good to interpose a siphon generator between a rainwater collecting material and a standing pipe, and this always cleans an inner wall of a standing pipe.

  The present invention is as described above, in which a plurality of small-diameter vertical pipes connected to a rainwater collecting fence installed on a roof or the like is directly led to the collecting fence, and a conventional site drainage system is unnecessary. It is. For this reason, it was possible to minimize outdoor piping work, shorten construction time, and reduce costs. And, by adhering pressurized air or pressurized water back from the upward pipe tip in the collecting rod, it was possible to remove the deposits of foreign matters in the vertical pipe, which was excellent in terms of maintenance.

  Furthermore, it is sufficient that the diameter of the vertical pipe is smaller than that of the conventional vertical pipe, and it can be concealed indoors from the viewpoint of ease of maintenance, and the appearance of the building is also excellent. It has become.

  In the present invention, a relatively narrow vertical pipe (including a horizontal pipe) connected to a storm water collecting material is connected to the storm water collecting basin as it is. A vertical pipe is connected to the other end of the pipe, and the vertical pipe can be used as a horizontal pipe as it is. Therefore, there is only one space per site, there is a space advantage, and there is a great advantage that the work can be done in one place in terms of maintenance.

  Further, since the tip of the pipe is directed upward, dust or sand stuck to the inner wall of the vertical pipe can be removed by sending pressurized air or pressurized water from the pipe tip. Such work can be performed in one place because the tips of the pipes are concentrated, and the workability is extremely efficient. Of course, there is no work at a high place, and the workability is excellent.

  Furthermore, a nozzle that ejects toward the side surface of the collecting rod is detachably fitted at the end of the pipe, or a control plate that discharges rainwater in a shower shape is detachably mounted on the side surface of the collecting rod. As a result, the side wall is always washed by the drainage from the vertical pipe, and adhesion of dust and the like is prevented. The control plate should be provided with a curved recess at each end of the pipe so as to be blown into a shower. Particularly preferably, the curved recess can be adjusted up and down by water pressure. The one with the structure is good.

  In the present invention, the most preferable mode is that a siphon generator is interposed between the rainwater collecting material and the vertical pipe. As a result, a full flow is brought into the vertical pipe, the thickness of the vertical pipe can be reduced, and the inner wall of the vertical pipe can be cleaned together.

  Here, a preferable siphon generator will be described. As a drainage system mainly used for domestic wastewater, there is a system that attempts to improve the prior art as a so-called siphon flow by making the fluid in the drainage pipe full flow. 1).

JP 2000-297447 A

  A feature of the siphon flow described in Patent Document 1 is, for example, a drainage system including a drainage vertical pipe penetrating each floor, a horizontal drainage pipe guided from a water supply device on each floor, and a joint directly connecting the drainage vertical pipe to the drainage vertical pipe In this drainage system, the level of the joint is lowered from the level of the drainage horizontal pipe, the fluid in the drainage horizontal pipe is made into a siphon flow, and a vertical velocity component is sufficiently added, and then the fluid is joined to the fluid in the drainage vertical pipe.

  The present invention intends to use a siphon flow system in such a drainage system for a rainwater standpipe. As a specific example, a container for storing rainwater and a tip disposed near the bottom of the container, near the top of the container. There is a siphon generator for rainwater drainage pipes, characterized in that the pipe folded back at the other end and the other end of the pipe is connected to the drainage pipe.

  By adopting this generator, rainwater that normally does not become full flow is intermittently brought into full flow, thereby washing dirt and dust that sticks to the inner wall of the vertical pipe. It is possible to provide a so-called maintenance-free drainage system. For this reason, it is sufficient that the thickness of the vertical pipe is relatively thin, and the vertical pipe may be a flexible resin pipe. Therefore, it is only necessary to guide the vertical pipe to the rainwater collecting rod without connecting it in the middle. . Furthermore, since the vertical pipe is thin, it is easy to conceal it inside the wall, and the vertical pipe can be bundled and handled at that time, which is a great merit.

  Hereinafter, the present invention will be described in more detail with reference to the best examples. FIG. 1 is an overall plan view of a conventional example, FIG. 2 is an overall plan view of the present invention, and FIG. 3 is an elevational view of its main part.

  As can be seen in FIG. 1, the house 1 has five standing pipes (tube diameter 50 mm) 2 which are collected in a rainwater pipe (horizontal pipe) 3 provided in the soil of the site. They are to be gathered in the gathering pool 4 and led to the sewer. Therefore, it is necessary to provide a space where the rainwater pipe 3 is buried in the site, and further maintenance of the rainwater pipe 3 and the standing pipe 2 is also required. This maintenance was dug up the site, work at a high place, and was dangerous.

  On the other hand, FIG. 2 is an overall plan view of the present invention. Like the FIG. 1, the house 1 has the standing pipes 2 arranged at six locations, each of which is a flexible resin pipe (tube diameter 20 mm). ), And this is extended to the set 枡 4 as it is. Therefore, the conventional rainwater pipe 3 is basically unnecessary. And since the standing pipe is thin, it can be sufficiently accommodated in the outer wall without using a dedicated pipe shaft for indoor concealment piping, and there is also a feature that there is no adverse effect on architectural exterior design.

  In addition, as shown in FIG. 3, the collecting rod 4 is provided with a pipe 5 having a tip 5a facing upward, and the vertical pipe 2 is connected to the other end 5b of the pipe. FIG. 4 is a plan view showing the tip 5a of the pipe 5. All the tips 5a are aligned upward, and the pipe 5 has an L shape as a whole. Normally, a nozzle 6 is detachably attached to the pipe tip 5a, and all the tips of the nozzle 6 are directed to the side surface of the collecting rod 4, and the rainwater from the vertical pipe 2 is the nozzle 6 Further, it is to be sprayed in a shower shape on the side surface of the collecting rod 4. For this reason, the automatic cleaning of the collective basket 4 can be performed by rainwater.

  As described above, the nozzle 6 is detachable, and when the nozzle 6 is removed, the tip 5a of the pipe 5 faces upward. Therefore, the inside of the vertical pipe 2 can be cleaned by sending pressurized air or pressurized water from the tip 5a in the opposite direction to the rainwater flow. This means that the entire system can basically be cleaned from the collective tub 4 and no soil work or work at high places is required.

  Further, in this example, a siphon generator 8 is provided between a rainwater collecting material 7 represented by, for example, an eaves of a house 1 and a standpipe 2, and in particular, the standpipe 2 is thereby provided. This makes it possible to reduce the tube diameter. Here, referring to the siphon generator 8, a container 9 having a size of about a PET bottle is connected to the rainwater aggregate 7, and rainwater that has flowed into the rainwater aggregate 7 is accumulated in the container 9.

  A bent pipe 10 is inserted into the container 9, and its tip 10a is disposed as close as possible to the bottom of the space in the container 9 where rainwater accumulates. On the other hand, the bent portion 10b of the bent pipe 10 is formed at a position as close as possible to the top of the space where rainwater collects, and the other end 10c of the bent pipe 10 is connected to the vertical pipe 2.

  In the siphon generator configured as described above, rainwater accumulates in the container 9, and when the height reaches the folded portion 10 b of the bent pipe 10, a siphon phenomenon is caused in the bent pipe 10. Then, the rainwater corresponding to the height H flows down as a full flow in the vertical pipe 2 at a stretch. Although the generation of the full flow is intermittent, this brings about an effect of removing dust stuck to the inner wall of the vertical pipe 2.

  FIG. 5 shows a control plate 20 used in place of the nozzle 6. The control plate 20 is attached to the pipe tip 5a, and has a curved recess 20a facing each pipe tip 5a. Reference numeral 21 denotes a plate that bundles and supports the pipe tips 5a, and a sleeve 21a is fitted into each pipe tip 5a. Reference numeral 21b denotes a receiver, which is attached by being screwed with a bolt 20b provided on the control plate 20.

  In this example, the rainwater blown up from the sleeve 21a collides with the recess 20a, and is scattered in a shower-like shape around it, so that it always has a function of cleaning the inner surface of the collective basket. become.

  FIG. 6 shows still another example of the control plate 20 used in place of the nozzle 6. The control plate 20 is provided with a cylinder 20c having a spring property opposite to the sleeve 21a. That is, each of the cylinders 20c has a coil spring 20d built therein, and a recess 20a is formed at the tip of the cylinder 20c.

  In this example, the rainwater blown out from the sleeve 21a collides with the recess 20a at the tip of the cylinder 20c, and has a function of scattering around the shower while pushing up the sinter 20c. The water flow of rainwater is controlled by pushing up the cylinder 20c.

  By using the collective basin for rainwater drainage of the present invention, the entire system is configured at low cost, and is advantageous in terms of maintenance, and can be widely used not only in detached houses but also in collective houses. In particular, the system combined with the siphon generator is particularly effective for maintenance.

FIG. 1 is an overall plan view of a conventional rainwater drainage system. FIG. 2 is an overall plan view of the rainwater drainage system according to the present invention. FIG. 3 is an elevational view of the main part of FIG. FIG. 4 is a front view of the pipe in the assembly cage. FIG. 5 is a partial cross-sectional view of the control plate. FIG. 6 is a partial cross-sectional view showing another example of the control plate.

Explanation of symbols

1. House,
2 Vertical pipe,
4.
5. Pipes
5a ... pipe end,
5b ... the other end of the pipe
6 Nozzle,
7. Rainwater gathering material,
8. Siphon 9. Container.
10 Bent pipe,
10a ... the tip of the bent pipe,
10b ... the folded part of the bent pipe,
10c ... the other end of the pipe,
20. Control plate,
20a: Curved depression at the tip of the control plate,
20b bolt,
20c ... cylinder,
20d ... coil spring,
21. Pipe support plate,
21a .. sleeve,
21b.

Claims (11)

  The rainwater collecting material, a plurality of small-diameter vertical pipes connected thereto, and a collecting rod connected to the sewer, and the collecting rod is provided with a pipe group with the tip facing upward, and the other end of each of the pipe groups A collecting basin for drainage of rainwater, characterized in that the vertical pipe is connected to the basin.   The rainwater drainage aggregate according to claim 1, wherein the rainwater aggregate is eaves or roof drain.   The rainwater drainage collecting rod according to claim 1, wherein a nozzle for discharging rainwater is attached to a side of the collecting rod at a pipe tip.   The collecting rod for drainage according to claim 1, wherein the nozzle is detachable.   2. A collecting rod for drainage of rainwater according to claim 1, wherein a control plate for discharging rainwater in a shower shape is attached to a side of the collecting rod at a pipe tip.   6. The rainwater drainage collecting basin according to claim 5, wherein the control plate is provided with a curved recess for each end of the pipe.   The collective basin for rainwater drainage according to claim 6, wherein the curved depression can be moved up and down by water pressure.   6. A rainwater drainage collecting rod according to claim 5, wherein the control plate is detachable.   The rainwater drainage collecting basin according to claim 1, wherein cleaning of the vertical pipe is performed by supplying pressurized air or pressurized water from an upward tip of the pipe group.   2. The collecting basin for drainage of rainwater according to claim 1, wherein the vertical pipe is a flexible resin pipe.   The rainwater drainage collecting rod according to claim 1, further comprising a siphon generator between the rainwater collecting material and the plurality of small-diameter vertical pipes.

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