JP4541300B2 - Synthetic resin drainage - Google Patents

Description

The present invention relates to a synthetic resin drainage, and more particularly to a synthetic resin drainage for installation in a residential area or outside a residential area.

As is well known, in the case of drainage pipes in residential or off-site drainage facilities, for example, drainage basin that forms a converging invert or drainage basin that forms a converging drop invert is used at the confluence. In the case where the drainage basin is made of a synthetic resin, for example, a vinyl chloride resin, it is composed of an inverter part, a rising part and a lid part.

However, in general, since the outflow inlet of the drain portion of the drainage is arranged in substantially the same plane, a branch pipe (hereinafter referred to as “external inflow pipe”) laid at a different height from the outflow inlet. Cannot be directly connected. Therefore, for example, when a branch pipe extending from a building is joined to a drain pipe laid in the residential area with a drop (level difference), a vertical branch pipe is once between the branch pipe and the drain pipe. After fitting a pipe joint such as an elbow or the like (hereinafter referred to as “head pipe”) to absorb the head with this vertical branch pipe, it joins the drainage pipe to which the drain pipe is connected ( Patent Document 1).

However, for example, when the diameter of a branch pipe extending from a hand-washing or lavatory is φ50 mm or less, the branch pipe is exceptionally formed as a drainage drain or a drop-in joint for junction. It has been proposed to connect directly to the rising portion of the drainage basin, and make the drainage flowing in the branch pipe fall into a waterfall and join the drainage flowing in the invert (Patent Document 2).

On the other hand, in a recent building, especially a detached house, the footing foundation, the entire under floor, etc. are formed on a moisture-proof concrete or the like placed about 20 cm higher than the ground surface. The branch pipe extending from the building is often connected with a drop to a drain pipe installed in the residential land.

In addition, public drainage drains connected to drainage pipes installed in residential land are installed based on the depth of sewage mains deeply laid under public roads. Therefore, in order to connect the drainage pipe in the residential land to the public drainage, the drainage installed in the residential land (including the one that forms a drop-in joint for joining) is used. It is necessary to install a dedicated drop box to absorb the height difference separately.

As a result, when a drain pipe for connecting a branch pipe extending from the building is laid in the residential area or when this drain pipe is connected to a public drain, a wide range from the drain pipe in the residential area to the public drain. It was necessary to dig deeply to the bottom of drainage pipes and drainage basins installed in residential land and the bottom of public drainage basins. In other words, in order to install a drain pipe in the residential land, an extra depth is excavated over a wide range to a depth corresponding to the height of the drop pipe extending from the building and a depth corresponding to the height of the public drain. There was a need.

Therefore, for the purpose of reducing such extra excavation, the present applicant changed the common sense of conventional invert drainage and drop invert drainage, and made an internal subsidiary made of vinyl chloride for installation in residential land. It has been well received by developing a combined drainage drain with a pipe (Patent Document 3).

In other words, the confluence drainage with inner sub-pipe developed by the present applicant is composed of an inverter part, a rising part, and a cover part similar to a general one, but this rising part is used for height adjustment. On the inner wall surface of the upper chisel tube, and an upper chisel tube (hereinafter also referred to as an “adjuster”) with a branch pipe receptacle integrally molded. When the inner sub-pipe locking part is integrally formed and the inner sub-pipe is locked to this locking part, the inner sub-pipe is connected to the outlet of the branch pipe receiving port. At the same time, the inner sub-pipe can be attached and detached when the lid is opened.

Therefore, according to the drainage for merging with the inner sub-pipe, while achieving the purpose of reducing excessive excavation, the drainage flowing through the branch pipe extending from the building is guided to the invert part with a drop through the inner subpipe, It is possible to smoothly join the drainage flowing in the invert part, and at the time of work such as inspection and cleaning of the drainage, it is possible to take out the inner sub-pipe and perform normal work.
Japanese Patent Laid-Open No. 2001-220996 Japanese Patent No. 3000247 JP 2004-278095 A

However, this combined drainage with an inner sub-pipe has subsequently been found to have the following problems.

In other words, one of the characteristics of this drainage basin is that it eliminates the excavation of extra digging grooves when laying the basin, so the actual basin location for drainage is narrowed by this effect. It is necessary to connect the branch pipe extending from the building to the drain. However, the branch pipe connected to the drainage drain is obstructed by various placed concrete when it is led out from the building, and its connection height and connection direction are limited, The horizontally extending branch pipe receptacle provided in the drainage drain has a fixed structure that is injection-molded integrally with the upper chisel tube, so the connection height and connection direction of the branch pipe The position (height and direction) of the branch pipe receptacle cannot be freely set according to the above. For this reason, the connection work between the branch pipes and the drainage can be troublesome at the place where the narrow drainage drains are installed, and depending on the construction method, the arrangement of the branch pipes can be complicated and very complicated. It was.

In addition, the upper chisel tube used for the drainage basin needs to be integrally provided with an outlet for the branch pipe projecting outward by injection molding. Unless improved, there was a problem that only a small drainage with a reduced diameter could be produced corresponding to the length of the branch pipe receptacle.

Further, when installing the inner sub-pipe to this drainage drainage, in addition to the branch pipe receiving port described above, an inner sub-pipe locking part for locking the inner sub-pipe is integrated with the inner wall of the upper cheese tube. As a result, the upper cheese tube used for drainage has become a very expensive part with a special structure.

Therefore, in order to solve these problems, the invention according to claim 1 is made of a resin in which an inner sub-pipe or a partition plate for guiding the drainage flowing from the external inflow pipe to the bottom drainage flow direction with a drop is incorporated. In the drainage basin, an external inflow pipe and a sub-inner pipe inside the drainage basin or a branch pipe for connecting the external inflow pipe and the inside of the drainage basin are detachably attached.

As a result, according to the first aspect of the present invention, the branch pipe that is detachably attached to the rising portion of the drain to connect the external inflow pipe (branch pipe) can be used as a hole saw. For example, since it can be retrofitted to any position (height and direction) of the rising part, even if the connection height or connection direction of the external inflow pipe is limited (for example, the connection port of the external inflow pipe is Even if it is fixed vertically and horizontally, the external inflow pipe can be connected to the drain without any difficulty.

Further, the inner / sub pipe locking means for locking the inner / sub pipe is provided integrally with the branch pipe connected to the external inflow pipe, not the rising portion of the drainage as described later, Since this branch pipe is retrofitted after drilling with a hole saw at the rising part, a normal cylindrical cylinder that does not require special processing or special shape at the rising part of the drain It is possible to use a tube.

As a result, according to the drainage basin according to the present invention, a significant cost reduction can be achieved compared to the conventional combined drainage basin with an inner sub pipe. Furthermore, the drainage basin according to the present invention produces a large-diameter drainage basin having a larger caliber than the drainage with the inner and auxiliary pipes, corresponding to the length of the branch pipe outlet removed from the rising portion. It can be used not only in residential land but also as large-scale public drainage that is installed outside the residential land.

In addition, according to the present invention, since the drainage flowing from the external inflow pipe is smoothly guided to the drainage flowing through the bottom with a drop by the inner sub-pipe or the partition plate built in the drainage pipe, the drainage pipe and An external inflow pipe having a different installation height can be connected to the drainage pipe, and it is not necessary to provide a special drainage facility for absorbing a height difference such as a drop pipe or a drop in the drainage path. For this reason, the drainage basin according to the present invention can be installed even in an extremely narrow ground, and accordingly, there is no need to perform extra excavation for laying a drop pipe or a drop trough.

The invention according to claim 2 is a resin drainage comprising an invert part, a rising part connected to the invert part, and a lid part covering the rising part, and the inside of the drainage An internal auxiliary pipe or a partition plate for guiding the drainage flowing from the external inflow pipe to the invert part with a drop is incorporated, and the wall of the rising part has the external inflow pipe and the internal auxiliary pipe, or the external inflow pipe. A branch pipe for connecting the inside and the drainage basin in a communicating manner was detachably attached.

That is, according to the invention described in claim 2, the invert part in which the drainage main body is connected to the drain pipe, the lid part that is installed so as to substantially coincide with the ground surface, and the rising part connected between them. Therefore, the drainage drain according to the present invention can be connected to the drainage pipe at any buried depth by adjusting the height (pipe length) of the rising portion.

In the invention according to claim 3, the nut tightening type branch pipe is applied to the branch pipe of the resin drainage drain according to claim 1 or 2.

As a result, according to the third aspect of the present invention, the branch pipe that is detachably attached to the rising portion of the drainage can be connected to the external inflow pipe. Can be retrofitted to any position (height, direction), even if there are restrictions on the connection height or direction of the external inflow pipe (for example, the connection port of the external inflow pipe is vertically or horizontally Even if there are a plurality of external inflow pipes and the height and direction of the external inflow pipes are different, the external inflow pipe can be connected to the drain without any difficulty.

In the invention according to claim 4, the protruding portion on the inner side of the drain clamp of the nut-clamped branch pipe of the resin drainage tank according to claim 3 is a contact for inspecting or cleaning the inside of the branch pipe and the outer inflow pipe. A surface was provided.

As a result, according to the invention described in claim 4, even if the nut tightening type branch pipe attached to the wall surface of the drainage rising portion protrudes inward from the drainage inner wall surface, It is possible to easily inspect or clean the inside of the nut-clamping type branch pipe and the external inflow pipe connected thereto through the contact surface.

According to a fifth aspect of the present invention, the inner sub-pipe of the resin drainage basin according to claim 1 or 2 is attached and detached from the upper part of the drainage basin by means of an inner / sub pipe locking means formed integrally with the branch pipe. I supported it freely.

That is, according to the fifth aspect of the present invention, since the inner sub pipe locking means is provided integrally with the branch pipe connected to the inner sub pipe instead of the rising portion of the drainage, the inner sub pipe is directly connected to the branch pipe. By being locked, the connection is ensured, and the rising portion of the drainage can be simplified to the shape of a normal cylindrical tube that does not require special processing or special shape.

In the invention according to claim 6, the inner auxiliary pipe locking means of the resin drainage drain according to claim 5 has a structure including a concave part that fits with a convex part provided on the outer peripheral surface of the inner auxiliary pipe. .

That is, according to the sixth aspect of the present invention, a structure is employed in which the convex portion of the inner secondary pipe and the concave portion provided in the inner secondary pipe locking means of the branch pipe are fitted to the locking means of the inner secondary pipe. The inner sub-tube can be firmly locked by cantilever support while resisting the stress and moment generated in the inner sub-tube locking means. As a result, the inner sub-pipe can be easily attached to and detached from the branch pipe locking means by being inserted and removed from the upper part of the branch pipe.

Further, the convex portion provided on the outer peripheral surface of the inner sub-pipe may be, for example, a structure in which a flange portion is provided at the connection end between the inner sub-pipe and the branch pipe, and therefore, with a very simple structure. It becomes possible to integrally mold with the inner sub-pipe. On the other hand, the concave portion integrally formed with the branch pipe may be a continuous semicircular arc-shaped groove portion, or may be a portion in which the groove portion is divided into two or more. In particular, when the groove is divided into two like an “inverted C” shape, this error is absorbed even if there is some manufacturing error in the outer diameter of the convex portion provided in the inner sub-pipe. By doing so, the inner sub-pipe can be securely locked.

In the invention according to claim 7, the lower end of the outlet of the resin drainage basin or the partition plate of the resin drainage basin according to claim 1 or 2 is at least 1/2 of the inner diameter of the downstream outlet from the bottom of the drainage basin. Installed at the height of.

According to the seventh aspect of the present invention, the waste water flowing from the external inflow pipe is merged in the flow direction of the bottom drainage via the inner sub pipe or the partition plate. At this time, the lower end of the outlet of the inner sub pipe or the partition plate If it is set to a height of 1/2 or more of the inner diameter of the downstream outlet from the bottom of the drainage basin, it will flow from the inner sub-pipe or the partition plate without obstructing the flow of drainage flowing through the bottom of the drainage basin. The drainage can be smoothly merged with the bottom drainage.

In the invention which concerns on Claim 8, the partition plate of the resin drainage basin of Claim 1 or 2 is the level | step difference formed by the difference in the thickness of the tubular body in the internal joint part of the said drainage basin body, or the said drainage First, it was supported detachably from the upper part of the drainage by means of partition plate locking means composed of steps formed integrally with the inner wall surface of the main body.

That is, according to the invention described in claim 8, unlike the case of the inner sub pipe locking means according to claim 5, the partition plate locking means is separated from the branch pipe and drained. Therefore, the partition plate can be detachably attached to the interior of the drainage drain independently of the mounting position of the external inflow pipe. Therefore, even when multiple external inflow pipes are attached to the drainage and drainage is allowed to flow in from any direction, it is necessary to install partition plates according to the connection position and number of external inflow pipes. It becomes possible to cope with one partition plate while effectively using the internal space of the drainage basin.

In the invention according to claim 9, the partition plate used in the resin drainage basin according to claim 8 is inclined downward along the flow direction of the bottom drainage, and the partition area rises in the drainage. It was set to 1/2 or more with respect to the horizontal cross-sectional area of a part.

As a result, according to the ninth aspect of the invention, the flow of drainage flowing from the external inflow pipe is received by the partition plate, and the bottom is smoothly turned by changing the direction of the drainage flowing through the bottom of the drainage basin. Can be merged into drainage.

In the invention which concerns on Claim 10, the curved-surface part for making the waste_water | drain flowing from the said external inflow pipe | tube join smoothly was formed in the partition plate of the resin drainage drain of Claim 9.

As a result, according to the invention described in claim 10, for example, even when a plurality of external inflow pipes are attached to the drainage and the drainage is allowed to flow from any direction, the drainage flowing from the external inflow pipe is prevented. It can be efficiently collected on the partition plate while changing the direction of the flow of the bottom drainage, and a smoother merging with the bottom drainage can be achieved.

In the invention according to claim 11, a plurality of branch pipes are attached to the resin drainage drain according to claim 1 or 2.

As a result, according to the invention described in claim 11, as long as a physical space for mounting the external inflow pipe (branch pipe) is secured on the external surface of the drainage rising part, any position (height) of the rising part is secured. ), Multiple external inflow pipes can be attached to the drainage pipe and multiple external inflow pipes with different installation heights from the drainage pipe. It is not necessary to provide a special drainage facility for absorbing height differences such as drop pipes and drops in the route.

In the invention which concerns on Claim 12, the invert part of the resin drainage tank of Claim 1 or 2 was connected to the drain pipe in a residential land, or the drain pipe outside a residential land.

As a result, according to the invention described in claim 12, the resin drainage slag according to the present invention can be used not only in the residential land but also as a large public drainage sill installed outside the residential land. Therefore, it is not necessary to provide a special drainage device for absorbing the height difference such as a drop pipe or a drop which is necessary for connection with the public. For this reason, the drainage basin according to the present invention can be installed even in an extremely narrow ground, and accordingly, there is no need to perform extra excavation for laying a drop pipe or a drop trough.

According to the present invention, the branch pipe detachably attached to the rising portion of the drain to connect the external inflow pipe (branch pipe) can be used at any position of the rising portion as long as the use of the hole saw is possible. (Height, direction) can be retrofitted, so even if the connection height and connection direction of the external inflow pipe are limited (for example, the connection port of the external inflow pipe is fixed in the vertical and horizontal directions) Even if), it is possible to connect the external inflow pipe without draining.

Further, according to the present invention, the inner sub pipe locking means for locking the inner sub pipe is provided integrally with the branch pipe connected to the external inflow pipe, not the rising portion of the drainage basin, Furthermore, since such a branch pipe is retrofitted after drilling the hole using a hole saw at the rising part, the rising part of the drainage drain has a normal cylindrical shape that does not require special processing or a special shape. A cylindrical tube can be used.

As a result, the drainage basin according to the present invention can achieve a significant cost reduction over the conventional combined drainage basin with an inner sub-pipe. Furthermore, the drainage basin according to the present invention produces a large-diameter drainage basin having a larger caliber than the drainage with the inner and auxiliary pipes, corresponding to the length of the branch pipe outlet removed from the rising portion. It can be used as a large public drainage that can be installed not only in the residential land but also outside the residential land, and the installation location is free from the connection range of the external inflow pipe There is no particular limitation.

Furthermore, according to the present invention, the drainage flowing from the external inflow pipe is smoothly guided to the drainage flowing through the bottom with a drop by the inner sub-pipe or the partition plate built in the drainage basin. It is possible to connect a plurality of external inflow pipes of different sizes, and it is not necessary to provide a special drainage facility for absorbing height differences such as drop pipes and drops in the drainage path. For this reason, the drainage basin according to the present invention can be installed even in an extremely narrow ground, and accordingly, there is no need to perform extra excavation for laying a drop pipe or a drop trough.

Hereinafter, a resin drain according to an embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the examples shown below, and various modifications can be made without departing from the technical idea of the present invention.

FIG. 1 is a schematic view of a first embodiment of the present invention, FIG. 2 is a detailed view of a main part of FIG. 1, FIG. 3 is a main part of FIG. 2, (A) is a top view, and (B) is a front view. is there.

First, the outline | summary of Example 1 of this invention is described. The drainage made of vinyl chloride for merging with an inner sub-pipe in Example 1 is a small caliber (which may include a public drainage basin) installed outdoors near the foundation concrete (not shown) of the building. The whole is made of a synthetic resin, particularly a vinyl chloride injection molded product.

The main structure of the drainage basin 1 is composed of an invert part 2, a rising part 3 and a cover part 4, and the rising part 3 is particularly composed of a cylindrical body. In addition, what is referred to herein as a tubular body has a structure for freely adjusting the mounting position of the nut-clamping type branch pipe 15 such as a screw mechanism described later in the vertical and horizontal directions. What is added to the lower end of the rising part 3 is also included.

The inverter part 2 is formed with a straight bottom drainage flow path having a step as shown in the figure and a large curved flow path that is refracted by 90 ° on a flat surface (not shown). Yes. In other words, in the invert section 2, the drainage inlet and outlet, and the flow path are arranged on substantially the same plane, and all of them are on the same plane, like rainwater and drop-invert. It is not arranged and does not have a bottom shape with complicated irregularities.

The drainage drain cover 4 is formed of a sealed opening / closing lid, and a ring-shaped cover frame 5 is directly added to the rising part (inspection tube) 3 without interposing a height adjusting tube. The surface is provided so as to substantially coincide with the ground surface GL. Therefore, the branch pipe (external inflow pipe) 11 connected to the rising portion 3 is buried at a shallow depth from the ground surface GL.

A drain pipe 8 made of an upstream vinyl chloride pipe is provided at the inlet 7 of the inverter 6 of the inverter section 2, and a drain pipe 10 made of a downstream vinyl chloride pipe is provided at the outlet 9. Are connected to the respective inlets 7 and 9 in a straight manner by bonding or the like.

Here, the branch pipe 11 made of a vinyl chloride pipe extending from the building connected to the drainage basin 1 is orthogonal (not shown) or perpendicular to the drainage pipes 8 and 10 when viewed from the horizontal plane. Although arranged in parallel (see FIG. 1), when viewed in a projection with respect to a vertical plane, the drainage flowing therein is connected so as to join the bottom drainage with a drop. Therefore, in the first embodiment, the riser 3 does not interfere with the smooth flow of the bottom drainage so that the drainage flowing from the branch pipe 11 falls like a waterfall and merges with the bottom drainage. 12 is attached.

Further, as in the conventional example, the inner sub-pipe 12 is installed so that the lid 4 can be opened and removed when the drain 1 and the drain pipes 8 and 10 are inspected or cleaned.

Therefore, the lower half of the outer edge of the inlet 13 of the inner sub-pipe 12 is provided with a semicircular arc-shaped flange (convex portion) 14 as shown in FIGS. 1 and 2. The inner auxiliary pipe 12 is nut-attached by detachably fitting the flange 14 into a recess of an inner auxiliary pipe locking means (hook) 17 provided to protrude from an outlet 16 of a nut-clamping branch pipe 15 described later. It is directly locked to the clamping type branch pipe 15. That is, the inner sub-pipe 12 is supported in a cantilever manner by the nut-clamping type branch pipe 15 and can be locked without using a fixing band used for a manhole or the like.

And this nut clamping type branch pipe 15 is retrofitted after being opened with a hole saw at the construction site in accordance with the connection position with the branch pipe 11 at the rising portion 3 formed of a cylindrical body as described above. Therefore, it can be attached at any height and in any orientation. Further, the branch pipe 15 is a retrofitting type nut clamping type, and this nut clamping type branch pipe 15 is not fixed to the rising portion 13 in advance. Can be easily connected with high construction accuracy.

Further, since the inner sub-tube locking means 17 is not provided in the rising portion 3 itself, it can be simplified to the shape of a normal cylindrical tube that does not require special processing or a special shape.

Next, the inner sub-pipe 12 and the nut clamping type branch pipe 15 used in the first embodiment will be described in detail.

The inner sub-pipe 12 is an injection molded product made of synthetic resin (made of vinyl chloride), and the drainage pipes 8 and 10 (outside the outside of the building) are placed with a drop in the flow a in the branch pipe 11 buried shallowly. In order to smoothly join the flow b of the nut-clamping type branch pipe 15, the pipe is installed on the extension of the pipe axis of the nut clamping type.

The inner sub-pipe 12 is connected to a 90 ° elbow 18 for turning 90 ° downward from a tube axis extending horizontally from the outlet 16 of the nut-clamping branch tube 15, and the 90 ° elbow 18. The connection pipe body 19 for adjusting the height by cutting the pipe and the semi-contained outflow guide member 20 connected to the connection pipe body 19 are configured.

Further, the downward opening of the 90 ° elbow 18 of the inner sub-pipe 12 is arranged so as to be substantially concentric with the rising portion 3, and the lower end position in the height direction of the opening of the outflow guide member 20 is the drainage The flow b of the drain pipes 8 and 10 in the residential land is installed by setting the outlet at the height of the outlet 9 of the invert section 2 or the inner diameter of the downstream drain pipe 10 connected thereto from the bottom of the mast. I try not to disturb.

Accordingly, the opening of the outflow guide member 20 opens in the direction of the flow b of the drainage pipe 10 on the downstream side, and also opens in the height direction so as to overlap with the rising portion on the inverter part 2 side. (See FIG. 1).

When a plurality of inner sub-pipes 12 are attached to the rising portion 3 of the drain 1 or when the diameter of the rising portion 3 is sufficiently larger than the diameter of the inner sub-pipe 12, the inner sub-pipe 12 is used. The downward opening of the 90 ° elbow 18 is not necessarily arranged so as to be concentric with the rising portion 3.

Further, the 90 ° elbow 18, the connecting pipe body 19, and the outflow guide member 20 can be taken out when the lid portion 4 is opened as an integral inner sub pipe 12 by being adhesively bonded to each other.

In addition, as described above, the flange 14 which is a semicircular arc-shaped inner sub-tube locking member is integrally formed on the substantially lower half of the outer peripheral surface of the inlet 13 of the 90 ° elbow 18.

A handle 21 extending upward is integrally provided at the top of the tube of the 90 ° elbow 18 so that the inner sub-tube 12 can be easily attached and detached when the lid 4 is opened.

FIG. 2 shows a cross-sectional view of the nut clamping die branch pipe 15 used in the first embodiment attached to the rising portion 3 of the drainage 1. FIG. 2 shows the nut clamping die. A top view and a front view of the main body 22 of the branch pipe 15 are shown.

The nut clamping type branch pipe 15 is made of a synthetic resin, for example, a vinyl chloride injection molded product, and its basic structure is disclosed in Japanese Patent Application Laid-Open No. 2001-56083, which has already been proposed and patented by the present applicant. As shown in the figure, a branch body 22, a spacer 24 including a packing 23 fitted in a key groove and slidably fitted onto the branch pipe body 22, and a male screw engraved on the branch pipe body 22. 25 and a nut 26 that fits in rotation, and an O-ring 27 is interposed between the branch pipe body 22 and the spacer 24 and sealed.

At one end of this branch pipe body 22, when viewed in a projection with respect to the vertical plane, an elliptical flange 28 having a major axis in the height direction and a minor axis in the horizontal direction and extending outwardly is a pipe axis of the branch pipe body 22. The outward face of the flange 28 that is in contact with the rising portion 3 is bent so as to be in close contact with the inner wall surface of the rising portion 3.

Further, a circular mounting opening 29 opened in the rising portion 3 by using a hole saw or the like for mounting the nut clamping type branch pipe 15 is smaller than the major axis of the flange 28 and smaller than the minor axis of the flange 28. Is opened to have a slightly larger aperture.

Then, in order to insert the flange 28 through the mounting opening 29 and into the rising portion 3, a stepped portion 30 for joining the mounting opening 29 in the vicinity of the inner surface of the flange 28, and a recess 31 adjacent thereto are provided. Is provided on the outer peripheral surface of the branch pipe main body 22.

Further, the branch pipe main body 22 is formed with a receiving port 32 having a standardized size for adhesively joining the branch pipe 11 on the side opposite to the end side where the flange 28 is integrally formed in an elliptical shape. Yes. The male screw 25 is carved on the outer periphery of the receiving port 32.

Therefore, in order to attach the nut tightening type branch pipe 15 to the attachment opening 29 provided in the rising portion 3, the flange 28 is inclined with respect to the mounting opening 29 and passed into the rising portion 3, and then the recess 31 is formed. It is installed so as to be placed on the rim of the mounting opening 29.

Next, this branch pipe body 22 is slightly pulled out of the rising portion 3, the stepped portion 30 is brought into contact with the edge of the mounting opening 29, and the outward face of the flange 28 in contact with the rising portion 3 is set inside the rising portion 3. The spacer 24 with the packing 23 is moved forward by being brought into close contact with the wall surface and tightening the nut 26, and is brought into close contact with the rising portion 3.

As a result, the nut clamping type branch pipe 15 can be fixed at an arbitrary position of the rising portion 3 by sandwiching the peripheral wall of the rising portion 3 from the inside and the outside by the flange 28 and the spacer 24 with the packing 23.

Therefore, the branch pipe 11 can be subsequently joined to the nut tightening type branch pipe 15 attached to the rising portion 3. In addition, when it is not necessary to align the branch pipe 11 to be connected at the construction site, the nut clamping type branch pipe 15 can be attached to the rising portion 3 in advance at a place other than the construction site such as a production factory.

Further, in the operation of attaching the nut tightening type branch pipe 15, if the branch pipe 11 is obstructed by the concrete foundation of the building or the like, the degree of freedom of connection with the nut tightening type branch pipe 15 is limited. First, the branch pipe 11 is joined to the receiving port 32 of the nut clamping type branch pipe 15 in advance, and then the nut clamping type branch pipe 15 is fixed to the rising portion 3 by tightening the nut 26 which has been freed. Also good. When such a procedure is adopted, it is possible to freely set the orientation of the receiving port 32 according to the connection position of the branch pipe 11 due to the flexibility of the connection direction of the branch pipe body 22 before fixing. In particular, the connecting work between the branch pipe 11 and the drainage basin 1 can be facilitated even in the place where the narrow drainage basin 1 is laid, and the arrangement of the branch pipe 11 can be prevented from being complicated and extremely complicated.

Inner / sub pipe locking means (hook) 17 having a semicircular arc-shaped recess protruding from the flange 28 is integrally provided in the lower half of the outlet 16 of the nut clamping type branch pipe 15. The inner sub-pipe 12 is directly locked to the nut-clamping type branch pipe 15 by detachably fitting the flange 14 of the inner sub-pipe 12 into the recess of the means 17.

Note that the shape of the inner sub-pipe locking means 17 does not necessarily have to be a shape having a continuous semicircular arc-shaped concave portion. For example, the concave portion may be divided into two or more. . In particular, in the case where the concave portion is divided into two like a “reverse C-shape”, even if some manufacturing errors occur in the outer diameter of the flange 28 provided in the inner sub-pipe 12, such errors are absorbed. By doing so, the inner sub-pipe 12 can be firmly locked.

As a result, an inner sub pipe locking means 17 is formed in the nut clamping type branch pipe 15, and the inner sub pipe locking means 17 is not provided in the rising portion 3 as described above. In the conventional confluence drainage with an internal secondary pipe made of vinyl chloride for installation in residential land, the adjuster that was required to be used (upper tube with a branch pipe receptacle) Body) and a pipe for height adjustment can be eliminated, and a general-purpose vinyl chloride pipe can be used, and the number of parts in the rising portion 3 can be greatly reduced.

Further, an arcuate recess 33 for inspecting or cleaning the inside of the nut tightening branch 15 and the branch pipe 11 may be provided at the top of the outlet 16 of the nut tightening branch 15. In this case, even if the outlet 16 of the nut clamping type branch pipe 15 attached to the wall surface of the rising portion 3 of the drainage drain 1 protrudes inward from the inner wall surface of the rising portion 3, it is provided in this protruding portion. The inside of the nut clamping type branch pipe 15 and the branch pipe 11 connected thereto can be easily inspected or cleaned through the arc-shaped concave portion 33 formed.

Further, in a normal case, the rising portion 3 and the inverter portion 2 are connected by cutting the lower end side of the rising portion 3 and connecting it to the inverter portion 2 by TS joining or rubber ring receiving joint. For example, when the nut tightening type branch pipe 15 is fixed to the rising portion 3 in advance and is to be brought into the construction site to simplify the field work, the lower end side of the rising portion 3 is shown in FIG. A height adjusting mechanism such as a screw mechanism 34 as shown may be added to be used for adjusting the height of the nut tightening type branch pipe 15 when connecting to the inverter 2.

Moreover, although the branch pipe 15 of the first embodiment has been described with the nut tightening type branch pipe 15 for retrofitting using a bolt-nut coupling mechanism, the present invention is not limited thereto, and a bayonet coupling mechanism or the like may be used. Has a flange portion that is curved so as to be in close contact with the outer peripheral surface of the rising portion 3 when there is room in the space for arranging the rubber ring receiving port or the like at the rising receiving portion of the inverter portion 2 Alternatively, the inner / sub pipe locking means 17 may be formed integrally with the branch pipe, and this may be retrofitted by adhesive bonding to the outer peripheral surface of the rising portion 3.

FIG. 4 is an overview diagram of the second embodiment of the present invention, in which two external branch pipes (external inflow pipes) 11 and 11 ′ are connected to the drainage drain 1 ′ of the second embodiment, and It differs from the drainage basin 1 of Example 1 in that the partition plate 12 'is used to guide the drainage flowing from the branch pipes 11, 11' to the bottom drainage flow direction with a drop.

First, an outline of the second embodiment of the present invention will be described. The drainage made of vinyl chloride for merging with a partition plate in this embodiment 2 is a small caliber (which may include a public drainage basin) installed outdoors near the foundation concrete (not shown) of the building. The whole is made of a synthetic resin, particularly a vinyl chloride injection molded product.

The main structure of the drainage basin 1 'is composed of an invert part 2, a rising part 3 and a lid part 4 in the same manner as the drainage basin 1 of the first embodiment. In particular, the rising part 3 is a tubular body having a cylindrical shape. It is configured. In addition, what is referred to herein as a tubular body is, for example, a pipe general-purpose pipe simply cut to a predetermined length, or a mounting position of a nut-clamping type branch pipe 15 'such as a screw mechanism. A structure in which a structure for freely adjusting in the vertical and horizontal directions is added to the lower end of the rising portion 3 is also included.

The inverter part 2 is formed with a straight bottom drainage flow path having a step as shown in the figure, and a large curved flow path that is refracted by 90 ° in a plane (not shown). . In other words, in the invert section 2, the drainage inlet and outlet, and the flow path are arranged on substantially the same plane, and all of them are on the same plane, like rainwater and drop-invert. It is not arranged and does not have a bottom shape with complicated irregularities.

The lid 4 of the drainage basin is composed of a closed-type opening / closing lid, and by directly attaching the ring-shaped lid frame 5 to the rising portion (inspection tube) 3 without interposing a height adjusting tube, The surface is provided so as to substantially coincide with the ground surface GL. Therefore, the two branch pipes 11 and 11 ′ connected to the rising portion 3 are buried at a shallow depth from the ground surface GL.

A drain pipe 8 made of an upstream vinyl chloride pipe is provided at the inlet 7 of the inverter 6 of the inverter section 2, and a drain pipe 10 made of a downstream vinyl chloride pipe is provided at the outlet 9. Are connected to the respective inlets 7 and 8 in a straight manner by bonding or the like.

Here, the branch pipes 11 and 11 ′ made of vinyl chloride pipes extending from the building connected to the drainage basin 1 ′ are orthogonal to the drainage pipes 8 and 10 when viewed from the horizontal plane (see FIG. (Not shown) or parallel (see FIG. 4) but connected so that the drainage flowing therethrough joins the bottom drainage with a drop when viewed in projection with respect to the vertical plane. Therefore, in the second embodiment, the rising portion is prevented so that the drainage flowing from the two branch pipes 11 and 11 'falls into a waterfall and joins with the bottom drainage and does not hinder the smooth flow of the bottom drainage. A partition plate 12 ′ is attached to 3.

Further, the partition plate 12 ′ is installed so that it can be taken out by opening the lid 4 when the drainage basin 1 ′ or the drain pipes 8, 10 are inspected or cleaned. In the present embodiment, the plate-shaped partition plate 12 ′ is illustrated, but a pipe structure having an outlet on the downstream side may be provided on the partition plate 12 ′.

Therefore, at the internal joint between the invert portion 2 and the rising portion 3 of the drainage basin 1 ′, the wall thickness of the rising wall portion of the inverting portion 2 is thicker than the wall thickness of the rising wall portion 3 connected thereto. Then, when the rising portion 3 is connected to the invert portion 2, the inner wall surface of the rising portion of the invert portion 2 protrudes inward from the inner wall surface of the rising portion 3, so that the edge portion 14 ′ of the partition plate 12 ′ is lowered. A partition plate locking means 17 ′ having a step for detachably supporting from the side is formed.

Moreover, the partition plate locking means 17 ′ formed by the difference in the thickness of the tube body as described above does not necessarily have to be continuous in the circumferential direction, and may be provided uniformly over the circumferential direction of the inner wall surface. For example, partition plate locking means (stepped portion) 17 ′ formed by dividing into a plurality of parts may be used. Further, the partition plate locking means may be provided directly on the inner wall surface of the invert part 2 or the rising part 3 of the drainage basin 1 '(not shown).

When the partition plate locking means 17 ′ is formed due to the difference in the thickness of the tube, the rising portion 3 itself is not provided with the partition plate locking means 17 ′. Or it can be simplified to the shape of a normal cylindrical tube that does not require a special shape.

In this manner, the partition plate locking means 17 ′ is separated from the nut-clamping branch 15 ′, which will be described later, and drained. The joint portion between the rising portion 3 and the invert portion 2 of the main body, or the rising portion of the draining main body. When provided on the inner wall surface 3, the partition plate 12 'can be detachably attached to the inside of the drain 1' independently of the drain pipes 11 'regardless of the attachment positions of the branch pipes 11 and 11'. For this reason, even if a plurality of branch pipes are attached to the drainage basin 1 ′ and the drainage is allowed to flow from an arbitrary direction, the partition plate 12 ′ is installed according to the connection position and the number of branch pipes. It becomes unnecessary, and it becomes possible to cope with one partition plate 12 ′ while effectively using the internal space of the drainage 1 ′.

Next, the partition plate 12 'and the nut tightening type branch pipe 15' used in the second embodiment will be described in detail.

The partition plate 12 ′ is an injection-molded product made of synthetic resin (made of vinyl chloride) and has an outdoor drain pipe with a drop in the flows a and a ′ in the two branch pipes 11 and 11 ′ buried shallowly. 8 and 10 (installed approximately parallel to the outside of the building and connecting the downstream side thereof to the public mass) to smoothly merge with each other, the inverted portion 2 and the rising portion 3 are overlapped to overlap each other. It is attached to the region from the vicinity of the connecting portion, in other words, from the vicinity of the upper end of the rising portion of the invert portion 2 to the height of ½ or more of the inner diameter of the outlet 9 of the invert portion 2 from the bottom of the drain.

FIG. 5 shows a plan view of the partition plate 12 ′ used in the second embodiment attached to the rising portion 3 of the drain 1 ′, and FIG. 6 shows the state shown in FIG. Sectional drawing at the time of cutting off partition plate 12 'by the AA cross section is shown.

4 and 5, the partition plate 12 ′ is inclined downward along the bottom drainage flow direction b, and is substantially the same as the inner diameter of the rising portion 3 when viewed from the horizontal plane. Has a large diameter. Further, the partition plate 12 'has an area of 1/2 or more with respect to the horizontal sectional area of the drainage rising portion 3, and the drainage flowing into the part from the support pipe 15' is joined to the bottom drainage flow. An opening 36 is formed in a half-moon shape.

As a result, the partition plate 12 ′ receives the wastewater flows a and a ′ flowing from the branch pipes 11 and 11 ′ by the partition plate 12 ′, and drains it in the direction b of the drainage flow that flows through the bottom of 1 ′. After the conversion, it can be joined to the bottom drainage, and particularly, as shown in FIG. 4, it is advantageous when connecting a plurality of branch pipes 11, 11 ′ whose drainage directions are not constant to the drainage drain 1 ′. Become.

4 and 6, the partition plate 12 ′ is configured with a gently curved surface while being inclined downward along the bottom drainage flow direction b (see FIG. 4), and the width direction is also the bottom portion. A curved surface that is curved downward is formed so as to be deepest at the top of the center line of the drainage flow (see FIG. 6).

As a result, even if a plurality of branch pipes 11 and 11 ′ are attached and drainage is allowed to flow in from any direction as in the drainage basin 1 ′ of the second embodiment, drainage flows from the branch pipes 11 and 11 ′. Can be efficiently collected on the partition plate 12 'while changing the direction of the flow of the bottom drainage, and smoother merging with the bottom drainage can be achieved.

The partition plate 12 'may be provided with a handle extending upward on the partition plate 12' so that the partition plate 12 'can be easily attached to and detached from the drain 1' when the lid 4 is opened. Alternatively, a chain having a sufficient length may be connected between the lid portion 4 and the partition plate 12 ′ so that the lid 4 can be attached and detached. Further, the partition plate 12 ′ may be detachable using an appropriate tool when the lid portion 4 is opened (none is shown).

As described above, the nut-clamping type branch pipe 15 'is opened to the rising portion 3 formed of a tubular body with a hole saw in accordance with the connection position of each of the plurality of branch pipes 11 and 11' at the construction site. Since it is later attached, it can be attached at any height and in any orientation. Further, the branch pipe 15 ′ is a retrofitting type nut tightening die, and this nut tightening branch pipe 15 ′ is not fixed to the rising portion 13 in advance, so that the branch pipes 11, 11 in which the degree of freedom of connection is particularly limited. Can be easily connected with high construction accuracy.

The nut tightening type branch pipe 15 'may have the same structure as that disclosed in Japanese Patent Application Laid-Open No. 2001-56083 that has been proposed and patented by the present applicant. As shown in FIG. 4, an extremely short elbow 18 ′ for changing the direction of drainage flowing from the nut-clamping branch 15 ′ from the horizontal direction to the substantially downward direction is formed integrally with the outlet 16 ′. It may be.

When the elbow 18 'is connected to the outlet 16' of the branch main body 22 'as in the latter case, the nut-clamped branch pipe 15' and the branch pipes 11, 11 'are connected to the top of the elbow 18'. An arcuate recess 33 ′ for inspecting or cleaning the inside may be provided. In this case, even if the elbow 18 ′ of the nut-clamping branch 15 ′ attached to the wall surface of the rising portion 3 of the drainage 1 ′ protrudes inward from the inner wall surface of the rising portion 3, It is possible to easily inspect or clean the inside of the nut-clamping branch pipe 15 ′ and the branch pipes 11 and 11 ′ connected to the nut-clamping branch pipe 15 ′ through the arc-shaped concave portion 33 ′ provided in the pipe.

The basic structure of the nut tightening type branch pipe 15 ′ used in the second embodiment is the same structure as the nut tightening type branch pipe 15 described in detail in the above Japanese Patent Laid-Open No. 2001-56083 and the first embodiment. Further, since the method of attaching the drainage basin 1 'to the rising portion 3 is the same, here, the basic structure of the nut-clamping type branch pipe 15' used in Example 2 and the method of attaching it will be described. Omitted.

As a result, the nut clamping type branch pipe 15 ′ used in the second embodiment is similar to the nut clamping type branch pipe 15 of the first embodiment in that the peripheral wall of the rising portion 3 is formed by the flange 28 ′ and the spacer 24 ′ with packing. Is clamped from the inside and the outside, so that the nut-clamping type branch pipe 15 ′ can be fixed at an arbitrary position of the rising portion 3.

In particular, in the case of the drainage basin 1 ′ of Example 2, unlike the case of the drainage basin 1 with the inner sub-pipe of Example 1, the partition plate locking means 17 ′ is separated from the nut-clamping branch 15 ′ and drained. The partition plate 12 'is independent of the mounting position of the branch pipes 11 and 11' because it is provided on the internal seam between the rising part 3 and the inverting part 2 of the main body or on the inner wall surface of the rising part 3 of the draining main body. It is possible to install the drainage detachably inside the drainage basin, and as shown in FIG. 4, even when multiple branch pipes are attached to the drainage basin 1 'and the drainage is allowed to flow from any direction. In addition, it is not necessary to install the partition plate 12 'according to the connecting position and the number of branch pipes, and it is possible to cope with one partition plate 12' while effectively using the internal space of the drainage 1 '. .

In addition, according to the drainage basin 1 ′ of the second embodiment, as long as a physical space for attaching the branch pipe to the outer surface of the rising portion 3 is secured, a plurality of them can be arranged at any position (height, direction) of the rising portion 3. Therefore, the drain pipes 8 and 10 and a plurality of branch pipes having different installation heights from the drain pipes can be connected to one drain 1 ', and in the drainage path. It is no longer necessary to install special drainage equipment to absorb height differences such as drop pipes and drops.

It should be noted that the nut clamping type branch pipe 15 ′ attached to the rising portion 3 may be joined to the branch pipes 11 and 11 ′ after being attached, or the branch pipes 11 and 11 ′ connected at the construction site. If it is not necessary to align the position, the nut-clamping type branch pipe 15 'may be attached in advance to the rising portion 3 at a place other than the construction site such as a production factory.

Further, in the mounting operation of the nut clamping type branch pipe 15 ′, if the branch pipes 11 and 11 ′ are obstructed by the concrete foundation of the building, the degree of freedom of connection with the nut clamping type branch pipe 15 ′ is limited. In such a case, after the branch pipes 11 and 11 'are joined to the receiving port 32' of the nut clamping type branch pipe 15 'in advance, the nut 26' that has been freed is tightened to tighten the nut clamping mold. The branch pipe 15 ′ may be fixed to the rising portion 3.

In addition, in the drainage basin 1 'of the second embodiment, the rising portion 3 can be constituted by a substantially cylindrical body, so that the drainage for confluence with a conventional inner pipe made of vinyl chloride for installation in residential land is provided. In this case, it is no longer necessary to install an adjuster (upper tube tube with a branch tube receptacle) or height adjustment tube, which was required to be used, and the number of parts in the rising part 3 was greatly reduced. can do.

In addition, the branch pipe 15 ′ of the second embodiment has been described with the nut tightening type branch pipe 15 ′ for retrofitting using a bolt-nut coupling mechanism, but the present invention is not limited to this, and a bayonet coupling mechanism or the like may be used. In addition, when there is room in the space for placing the rubber ring receiving portion or the like in the rising receiving portion of the inverter portion 2, a flange portion that is curved so as to be in close contact with the outer peripheral surface of the rising portion 3 is provided. A general branch pipe may be retrofitted by adhesively bonding to the outer peripheral surface of the rising portion 3.

Example 3 is a drainage made of vinyl chloride, in which a plurality of external branch pipes are connected and which has a corresponding number of inner and secondary pipes, and FIG. 7 shows a top view thereof. FIG. 8 is a cross-sectional view of the drainage basin shown in FIG.

The drainage basin 1 according to the third embodiment has the same structure as the drainage basin according to the first embodiment in that an inner / sub pipe 12 is provided therein. It has the same structure as the drainage basin of Example 2 in that 15 ′ is provided.

In this way, in the present invention, as shown in FIGS. 7 and 8, it is also possible to install a plurality of inner sub-pipes 12 and nut-clamping type branch pipes 15 and 15 '. Here, two inner sub-pipes 12 with the outlets oriented downstream are installed, but if the diameter of the rising portion 3 is increased, the number of inner sub-pipes can be increased to three or four. It is. In addition, the other basic structure of the drainage basin 1 of Example 3 is the same as the drainage basin shown in Examples 1 and 2.

1 is an overall view of Embodiment 1 of the present invention. It is a principal part detail drawing of FIG. FIG. 3 is a detailed view of a main part of FIG. 2. It is a general view of Example 2 of the present invention. It is a principal part top view of the attachment state to a drain plate. It is principal part sectional drawing at the time of cutting off the partition plate of FIG. 5 in AA cross section. It is a top view of Example 3 of the present invention which installed a plurality of branch pipes and an inner sub pipe. It is sectional drawing at the time of cutting out the drainage basin of FIG. 7 in a BB cross section.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1 '... It drains 2 ... Invert part 3 ... Rising part 4 ... Lid part 11, 11' ... Branch pipe 12 ... Inner sub-pipe 12 '... Partition plate 14 ... Collar 15, 15' ... Branch pipe (nut tightening) (Attached type branch pipe)
17 ... Inner / sub pipe locking means 17 '... Partition plate locking means

Claims (12)

It is a resin drainage with a built-in inner sub-pipe or partition plate to guide the drainage flowing from the external inflow pipe to the bottom drainage flow direction with a head,
The resin drainage is characterized in that an external inflow pipe and an internal inner sub-pipe, or a branch pipe for connecting the external inflow pipe and the inside of the drainage basin are detachably attached to the wall surface of the drainage basin. . The invert club,
A resin drainage comprising a rising portion connected to the invert portion, and a lid portion covering the rising portion,
Inside the drainage basin, an internal sub-pipe or partition plate for guiding the drainage flowing from the external inflow pipe to the invert part with a drop is incorporated,
The resin drainage, wherein a wall for connecting the external inflow pipe and the inner sub pipe, or the external inflow pipe and the drainage basin is connected to the wall of the rising portion in a detachable manner. The   The resin drainage according to claim 1 or 2, wherein the branch pipe is a nut tightening type branch pipe.   4. The resin according to claim 3, wherein a contact surface for inspecting or cleaning the inside of the branch pipe and the external inflow pipe is provided at a protruding portion inside the drain of the nut-clamping branch pipe. Made drainage.   3. The resin-made product according to claim 1, wherein the inner auxiliary pipe is detachably supported from an upper portion of the drainage by an inner auxiliary pipe locking means formed integrally with the branch pipe. Drain.   6. The resin drainage according to claim 5, wherein the inner sub pipe locking means includes a concave portion that fits with a convex portion provided on the outer peripheral surface of the inner sub pipe.   3. The lower end of the outlet of the inner sub-pipe or the partition plate is installed at a height of ½ or more of the inner diameter of the downstream outlet from the bottom of the drainage basin. The resin drainage.   The partition plate has a step formed by a difference in wall thickness of the pipe body in the inner seam portion of the drainage mass main body, or a partition plate locking formed by a step formed integrally with the inner wall surface of the drainage mass main body. The resin drainage according to claim 1 or 2, wherein the drainage is supported detachably from above the drainage by means. The partition plate is inclined downward along the flow direction of bottom drainage, and the partition area is 1/2 or more with respect to the horizontal cross-sectional area of the rising portion of drainage. Resin drainage as described in 8.   The resin drainage according to claim 9, wherein the partition plate is formed with a curved surface portion for smoothly joining drainage flowing from the external inflow pipe.   The resin drainage according to claim 1 or 2, wherein a plurality of the branch pipes are attached.   The resin drainage according to claim 1 or 2, wherein the resin drainage is connected to a drainage pipe in a residential area or a drainage pipe outside a residential area.

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