JP2007070890A - Synthetic resin catch basin - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a synthetic resin catch basin which connects between a pipe connected to an upstream side of a catch basin main body and a pipe connected to a downstream side of the same without causing liquid stagnation and in an angularly adjustable manner, and has a relatively large bore. <P>SOLUTION: The synthetic resin catch basin is formed of an upward-facing inspection cylinder connection portion, and flexible pipe joints on upstream and downstream sides thereof. Each flexible pipe joint includes a socket joint having a partially spherical inner surface, a spigot joint having a partially spherical external surface turnably fitted into the partially spherical internal surface of the socket joint, and an annular internal wall member which follows the inside of each of the socket joint and the spigot joint, and is turnable so as to maintain an internal cross section to an almost constant value. Then the spigot joints are integrally formed together with the catch basin main body on an upstream side and a downstream side of the same. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a resin drainage drainage, particularly when there is a need to adjust the connection angle between the drainage drainage main body and piping connected to the upstream side and / or piping connected to the downstream side. It relates to a resin drainage drain that can be connected to a pipe with adjustable angle.

When constructing drainage pipes, drainage drains may be installed in the middle of the drainage pipe path in order to inspect the buried pipes and join other drainage pipes. At this time, it may be necessary to adjust the connection angle left and right and up and down according to the gradient of each pipe between the drainage main body and the upstream and / or downstream pipe connected thereto.

As a coping method in such a case, Japanese Utility Model Publication No. 57-34391, Japanese Utility Model Application Publication No. 63-24484, Japanese Utility Model Application Publication No. 1-87394, Japanese Utility Model Application Publication No. 6-80092, Japanese Patent Application Laid-Open No. 2004-332788. A universal pipe joint with an adjustable connection angle as described in JP-A-2004-175597, a post-installation on the inlet and / or outlet of the main body, JP-A-4-175597, JP-A-6-330552, Inflow ports (upstream) as described in Kai 2001-200180, No. 852140 Design Gazette, No. 1 Design Gazette No. 852140, No. 2 Design Gazette No. 852140, No. 1237342 Design Gazette Proposal to use a drainage basin with a universal pipe joint integrated in advance on at least one of the outlet side and / or outlet (downstream side) It has been.

However, most of these universal pipe joints and the drainage drains equipped with universal pipe joints have a liquid pool inside when the connection angle is adjusted between the drainage body and the external piping connected to it. Has occurred and the flowing water is obstructed, or the connection angle cannot be adjusted sufficiently in accordance with a large gradient change between the upstream side pipe and the downstream side pipe.

Furthermore, as described above, in the case of the method of attaching the universal pipe joint later at the construction site, it takes time and effort to bond the universal pipe joint to the drainage main body. In the meantime, the next pipe cannot be connected and the workability is deteriorated. Also, in the case of using a drainage basin equipped with a universal pipe joint in advance, the price of the drainage basin is more expensive than normal drainage, and the size (caliber) of the drainage basin that can be selected is However, there is a problem that it is limited to a small diameter for the following reasons.

In the case of resin drainage equipped with conventional universal pipe fittings, a dedicated inlet that protrudes outward from the main drainage main body in order to attach the universal pipe fitting to the inlet and / or outlet. And / or the outlet must be drained and integrally formed on the body. For this reason, when it is desired to manufacture a drainage drain having the same size (caliber) inspection port, the amount corresponding to the length of the dedicated inlet and / or outlet that protrudes outward longer than usual is more A large mold had to be made and used.

However, resin drainage is produced by injecting resin into a mold using an injection molding machine. The maximum size of the mold that can be used is determined by the capacity of the injection molding machine and is substantially constant.

Therefore, when trying to manufacture a drainage basin equipped with a universal pipe joint using an existing injection molding machine, use a mold that is approximately the same size as the mold used to manufacture a normal drainage basin. It was necessary to make a drainage drain whose drainage was made “smaller” by the amount corresponding to the length of the dedicated inlet and / or outlet that protruded long outward. On the other hand, if you want to manufacture a larger drain with a universal pipe joint, you will need a “larger” mold for the length of the dedicated inlet and / or outlet that protrudes long outward. It was necessary to use a newly manufactured injection molding machine having a higher capacity and by purchasing a new one.

For this reason, the resin drainage that is integrally provided with universal pipe joints that can be obtained in the market is said to be very expensive if the body diameter is small or large There was a problem. Further, by integrally forming a universal pipe joint only at one of the inflow port or the outflow port as described in JP-A-6-330552 and JP-A-2001-21080, the diameter of the drainage main body is increased. A pipe that allows only a small diameter has been developed, but in the case of such drainage, the connection angle between the connecting pipe on the side where the universal pipe joint is not installed and the external pipe to be connected. If there is a need to adjust the horizontal and vertical directions, it is not possible to cope with this, and for this reason, a drainage drain is installed in the middle of a piping route that has a relatively large gradient change between the upstream piping and the downstream piping. There was a problem that could not be done.
Japanese Utility Model Publication No. 57-34391 Japanese Utility Model Publication No. 63-24484 Japanese Utility Model Publication No. 1-87394 Japanese Utility Model Publication No. 6-80092 JP-A-4-175597 JP-A-6-330552 JP 2001-21080 A JP 2004-332788 A No. 852140 Design Gazette A similar design gazette of No. 852140 Two similar design gazettes of No. 852140 No. 1233742 Design Gazette

Therefore, the present invention connects the pipes so that the angle can be adjusted without causing a liquid pool between the drainage main body and the pipe connected to the upstream side and the pipe connected to the downstream side. It is an object of the present invention to provide a resin drainage tank that can be used and has a relatively large diameter even when a mold having the same size as that of a conventional mold is used.

In order to achieve such an object, the invention according to claim 1 is a resin drainage having an inspection tube connection portion facing upward and a universal pipe joint on each of the upstream side and the downstream side, A universal pipe joint includes a socket joint having a partial spherical inner surface, a spigot joint having a partial spherical outer surface that is rotatably fitted in accordance with the partial spherical inner surface of the socket joint, and the socket joint and spigot. The spigot joint is integrally formed on the upstream side and the downstream side of the drainage main body, and includes an inner wall member that can be rotated so as to follow the inside of the joint and keep the inner cross section substantially constant.

As a result, according to the invention described in claim 1, it follows the inside of the socket joint and spigot joint as described in JP-A-2005-207548 and Japanese Patent Application No. 2004-67685, and Since this was improved and used based on the basic structure of a universal pipe joint that includes a rotatable inner wall member so as to keep the cross-section substantially constant, it is connected to the drainage main body and the pipe connected to the upstream side and the downstream side. It is possible to connect the pipe so that the angle can be adjusted without causing a liquid pool with the pipe.

According to the invention described in claim 1, since the spigot joint having an extremely short pipe length is integrally formed at the inlet and the outlet that protrude outward from the drainage main body, the same size as the conventional one is obtained. Even if a metal mold is used, it is possible to provide a resin drainage tank having a relatively large diameter.

Further, according to the invention described in claim 1, since the universal pipe joint having a special structure capable of adjusting the angle in any direction over a wide range is integrally provided on each of the upstream side and the downstream side, A drainage can be installed even in the middle of a piping path having a relatively large gradient change between the downstream piping.

In the invention according to claim 2, the inspection pipe connecting portion is upward and the resin drainage is provided with a universal pipe joint on each of the upstream side and the downstream side. The universal pipe joint has a partial spherical inner surface. A socket joint having a spigot joint having a partially spherical outer surface that is rotatably fitted in conformity with a partial spherical inner surface of the socket joint, and follows the inner surface of the socket joint and the spigot joint. The spigot joint is integrally formed on the upstream side of the drainage drainage main body, and the socket joint is integrally formed on the downstream side.

As a result, according to the invention described in claim 2, as in the invention described in claim 1, the socket joint as described in Japanese Patent Application Laid-Open No. 2005-207548 and Japanese Patent Application No. 2004-67685 and Since this was improved based on the basic structure of a universal pipe joint that includes an inner wall member that can be rotated so as to follow the inside of the spigot joint and keep the inner cross-section substantially constant, It is possible to connect the pipes so that the angle can be adjusted without causing a liquid pool between the pipes to be connected and the pipes connected to the downstream side.

According to the invention described in claim 2, a spigot joint having an extremely short pipe length is integrally formed at the inflow port protruding outward from the drainage main body, and an external pipe is connected to the outflow port. Since the socket joint with a shortened pipe length is formed by omitting the opening (length), it is possible to produce a resin drainage drain having a relatively large diameter even when using a mold of the same size as before. Moreover, since the meshing of the annular inner wall member is aligned in the forward flow direction in the downstream-side universal pipe joint, smoother flowing water can be achieved.

Further, according to the invention described in claim 2, since the universal pipe joint having a special structure capable of adjusting the angle in an arbitrary direction over a wide range is integrally provided on each of the upstream side and the downstream side, A drainage can be installed even in the middle of a piping path having a relatively large gradient change between the downstream piping.

In the invention according to claim 3, a rubber ring joint type receiving port is formed at the connection end of the universal pipe joint provided on the upstream side of the invention according to claim 1 or 2 with the external pipe, and the downstream side At the connection end of the universal pipe joint provided to the external pipe, a gap corresponding to the rubber ring joining method was formed.

As a result, according to the invention described in claim 3, the connection work with the external pipe is easy at the construction site, and the labor for adhering the universal pipe joint to the drainage main body is not required. It becomes possible to complete the installation work of draining water in a short time, and the construction work can be performed at low cost.

In the invention described in claim 4, the swivel angle of the universal pipe joint of the invention described in claim 1 or 2 can be adjusted to be rotatable within a range of −15 ° to + 15 °.

As a result, according to the invention described in claim 4, between the drainage main body and the upstream and downstream pipes connected thereto, the connection angles are separated in arbitrary directions in accordance with the gradient of each pipe. The drainage can be easily installed even in the middle of a piping path having a relatively large gradient change or bend between the upstream piping and the downstream piping. .

In the invention according to claim 5, the upstream spigot joint and the downstream spigot joint formed on the drainage drain main body according to claim 1 or 2, or the upstream spigot joint and the downstream socket. The joints were arranged so that the respective tube axes coincided with each other.

As a result, according to the invention described in claim 5, the drainage basin according to the present invention can be easily installed in the middle of one drainage piping path arranged on a substantially straight line with a gradient or the like. Even if it is installed more and more, smooth running water can be guaranteed without impeding running water.

In the invention described in claim 6, at least two or more universal pipe joints are provided on the upstream side of the drainage drainage main body of the invention described in claim 1 or 2.

As a result, according to the invention described in claim 6, a plurality of external drainage pipes can be received from the upstream side, and after these pipes are merged in the drainage, the downstream side is 1 Even if it is installed at a drainage drain that requires the function of draining by integrating it into two drainage pipes, there is a liquid pool between the drainage main body and the pipe connected to the upstream side and the pipe connected to the downstream side. Therefore, it is possible to provide a resin drainage pipe having a relatively large diameter, which can connect the pipes with an adjustable angle.

According to the present invention, this is improved and used on the basis of the basic structure of a universal pipe joint that includes an inner wall member that can be rotated so as to follow the inside of the socket joint and spigot joint and keep the inner cross section substantially constant. As a result, the pipe can be connected to the drainage main body and the pipe connected to the upstream side and the pipe connected to the downstream side without causing a liquid pool so that the angle can be adjusted.

In addition, according to the present invention, a spigot joint or the like having an extremely short pipe length is integrally formed at the inlet and outlet that protrude outward from the drainage main body. Even if it is used, it is possible to provide a resin drainage tank having a relatively large diameter.

Furthermore, according to the present invention, the universal pipe joint having a special structure capable of adjusting the angle in an arbitrary direction over a wide range is integrally provided on each of the upstream side and the downstream side. A drainage can be installed even in the middle of a piping path having a relatively large gradient change in between.

Further, according to the invention, a rubber ring joint type receiving port is formed at the connection end of the universal pipe joint provided on the upstream side of the drainage main body with the external pipe, and the universal pipe joint provided on the downstream side. The connection end to the external pipe is formed with a rubber ring joint compatible port, so it is easy to connect to the external pipe at the construction site, and the drain pipe is used to bond the flexible pipe joint to the body. Since there is no need for labor, it is possible to complete the installation work of draining water in a very short time, and the construction work can be performed at low cost.

In addition, according to the present invention, since the drainage can be made compact, at least two universal pipe joints can be provided on the upstream side of the drainage drainage main body, so that a plurality of external drainage pipes are accepted from the upstream side. Even after these pipes are merged in the drainage basin, the downstream side is the location where the drainage basin is required to have the function of draining by integrating it into one drainage pipe. The drainage basin according to the present invention can be installed.

Hereinafter, a resin drainage drain according to an embodiment of the present invention capable of connecting a pipe with adjustable angle 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 side view of a resin drainage pipe 1 in which piping can be connected to adjust the angle according to the first embodiment of the present invention. Of these components, the spigot joints 3a and 4a are integrally formed.

The drainage basin 1 according to the present invention includes a drainage basin body 2 (see FIG. 4) in which spigot joints 3a and 4a are integrally formed on the inspection tube connecting portion 5 and upstream and downstream sides, respectively, and freely rotatable with this. Socket fittings 3b and 4b to be fitted, and annular inner wall members 3c and 4c which follow inside the pair of spigot joints and socket joints and are rotatable so as to keep the inner cross section substantially constant.

The drainage basin 1 according to the present invention can be made of a general resin material such as vinyl chloride or polypropylene, and the drainage basin body 2 and socket joints 3b and 4b attached to the upstream side and the downstream side, and a rotatable annular shape. Each of the parts such as the inner wall members 3c and 4c is molded by blow molding using an injection molding method or a cold parison method.

FIG. 2 shows a cross-sectional view of the resin drainage basin 1 according to the present invention shown in FIG. 1 cut in a vertical direction along a plane including its central axis. In FIG. 3, the flexible pipe joints 3 and 4 on the upstream and downstream sides of the resin drainage trough 1 according to the present invention shown in FIG. 2 are bent in accordance with the gradient of the pipes connected to them. A cross-sectional view cut in the vertical direction on a plane including the central axis is shown.

As shown in FIGS. 2 and 3, the resin drainage trough 1 according to the present invention has the upstream and downstream spigot joints 3 a and 4 a formed on the drainage drainage main body 2, and the pipe axes “a” coincide with each other. Therefore, it can be easily installed in the middle of a single drainage pipe route that is arranged on a substantially straight line with a gradient, etc. Smooth running water can be guaranteed.

Further, a groove portion 30 is provided on the inner peripheral surface near the connection end of the upstream universal pipe joint 3 attached to the drainage drain 1 with the external pipe, that is, in the vicinity of the connection end of the socket joint 3b. A ring (not shown) or a rubber ring joint type receiving port 3d into which a ripple 31 is fitted is integrally formed. On the other hand, at the connection end of the downstream universal pipe joint 4 to the external pipe, that is, in the vicinity of the connection end of the socket joint 4b, the outlet corresponding to the rubber ring joining method having a constant length with a substantially uniform outer diameter. 4d is integrally formed.

For this reason, according to the drainage basin 1 according to the present invention, the connection work with the external piping is facilitated at the construction site, and the labor for bonding the universal pipe joint to the drainage basin body 2 is not required. It becomes possible to complete the installation work of draining water in a short time, and the construction work can be performed at low cost.

FIG. 5 is a partially enlarged view of the vicinity of the universal pipe joint 4 provided on the downstream side in the resin drainage can 1 according to the present invention shown in FIG. Although a sectional view is shown, the basic structure is the same as that of the universal pipe joint 3 provided on the upstream side, although not shown here.

The basic structure of the universal pipe joints 3 and 4 provided on the upstream side and the downstream side constituting a part of the drainage basin 1 according to the present invention is disclosed in Japanese Patent Application Laid-Open No. 2005-207548 and Japanese Patent Application No. 2004-67685. It is described in detail in the specification, the inventions of both applications being hereby incorporated by reference.

With reference to FIG. 5, the outline of the universal pipe joints 3 and 4 used for the drainage basin 1 according to the present invention will be described (hereinafter, the reference numerals shown in parentheses are the universal pipes provided on the upstream side) And the universal pipe joints (3) and 4 are socket joints (3b) and 4b having partial spherical inner surfaces (33b) and 43b, and the socket joints. A spigot joint (3a), 4a having a part spherical outer surface (33a), 43a, which is pivotably fitted in line with the part spherical inner surface, and follows inside the socket joint and spigot joint; and A spigot joint 4a provided on the downstream side (and a spigot joint 3a provided on the upstream side) includes an annular inner wall member (3c) and 4c that can be rotated so as to keep the inner cross section substantially constant. 2 and It is molded in a body.

In this case, the spigot joints (3a) and 4a that are integrally formed by protruding outward from the drainage main body 2 are formed as shown in FIG. 5 by using the spigot joint partial spherical outer surface (33a) and 43a as the spigot joint main body. (34a), 44a and spigot rings (35a), 45a are preferably configured as separate parts.

This is because, spigot joint (3a), protruding length d _{1 (see} FIG. 4) of 4a is sufficiently shorter than the tube length of inlet and outlet also by itself provided with a conventional catch basin, spigot joint (3a) By further dividing 4a, it is possible to integrally form a drainage basin having a larger diameter corresponding to the length of the divided spigot ring (35a) and 45a to be assembled later. Because it becomes.

Further, on the partial outer surfaces (33a) and 43a of the spigot joint, O-rings (36) and 46 for making the fitting with the partial inner surfaces (33b) and 43b of the socket joint liquid-tight, and this Grooves (37) and 47 are provided in the circumferential direction for fitting and fixing.

The annular inner wall members (3c) and 4c arranged inside the spigot joint and the socket joint are a support member (32a) protruding from the base of the spigot joint, and a support member (32b) protruding from the base of the spigot joint and 42a. , 42b and is supported in a bowl shape.

For this reason, the spigot joints (3a), 4a and the socket joints (3b), 4b function as guide members for connecting the flexible pipe joints in a liquid-tight manner and forming a bent portion smoothly and freely. The annular inner wall members (3c), 4c and the support members (32a, 32b), 42a, 42b function as flowing water smoothing members for eliminating concave portions and steps generated in the universal pipe joint.

That is, according to the resin drainage basin 1 according to the present invention, the ring is rotatable so as to follow the inside of the spigot joints (3a), 4a and the socket joints (3b), 4b and keep the inner cross section substantially constant. Since the universal pipe joint (3) and 4c including the inner wall members (3c) and 4c are drained integrally on the upstream side and the downstream side of the main body 2, piping connected to the upstream side and piping connected to the downstream side It is possible to connect the pipes so that the angle can be freely adjusted without generating a liquid reservoir between them.

Moreover, the free swing angle of the universal pipe joints (3) and 4 used in the present invention can be adjusted to be rotatable over a wide range from −15 ° to + 15 °. For this reason, it becomes possible to adjust the connection angle separately in any direction according to the gradient of each pipe between the drainage main body 2 and the upstream and downstream pipes connected thereto. Even in the middle of a piping path having a relatively large gradient change or bend between the piping and the downstream piping, the drainage canister 1 according to the present invention can be easily installed (see FIGS. 6 and 7). ).

FIG. 4 shows a cross-sectional view of the drainage main body 2 according to the present invention in which the spigot joints 3a and 4a are integrally formed on the upstream side and the downstream side, cut in a vertical direction along a plane including the central axis. .

According to the present invention, as described above, the spigot joint 3a which is integrally formed to protrude outwardly from the catch basin body 2, 4a protruding length d ₁ of the inlet and provided at the conventional catch basin It is very short compared to the pipe length of the outlet. For this reason, the drainage basin 1 according to the present invention is a mold having a normal size using an ordinary injection molding machine, and an inlet and a stream projecting outward from the drainage basin body 2. Since the outlet pipe length is shortened, a resin drainage tank having a relatively large diameter can be integrally formed.

Further, according to the present invention, a spigot joint 3a which is integrally molded onto the catch basin body 2, since the protrusion length d ₁ of 4a is extremely short, even after draining Masu construction, the spigot joint 3a, the 4a on the road A load from a vehicle or the like can be easily avoided, and the universal pipe joints 3 and 4 provided in the drainage can 1 can be protected from accidental damage.

For example, FIG. 6 shows a construction example in the case where the drainage basin 1 according to the present invention is connected when the pipes connected to the upstream side and the downstream side have a certain slope, and FIG. An example of construction in the case where the drainage basin 1 according to the present invention is connected when the pipe connected to the upstream side has a certain bending angle and the pipe connected to the downstream side has a slope is shown. It is shown.

Normally, when the drainage basin 1 is constructed, as shown in FIGS. 6 and 7, the inspection cylinder 6 is raised from the inspection cylinder connection part 5 of the drainage basin body 2 toward the ground surface and is located above the inspection cylinder 6. In the vicinity of the ground surface, a protective housing 8 supported by the protective housing seat 7 is provided so that a load from a vehicle or the like on the road is not directly applied to the inspection tube 6 and the drainage main body 2.

This protective housing seat 7 functions as a foundation that stays in place while dispersing the load applied from the ground via the protective housing 8 into the ground. 3a, in order is very short projection length d ₁ of the 4a, it can be located directly below the protective housing seat 7, so that the universal fittings 3,4 containing spigot joint 3a, the 4a is ground It can be avoided that an unexpected load is applied.

FIG. 8 is a side view of a resin drainage pipe 1 to which piping can be freely adjusted in an angle according to the second embodiment of the present invention. A spigot joint 3a of a universal pipe joint is integrally formed on the upstream side of the drainage body 2. On the downstream side, a socket joint 4b of the universal pipe joint 4 is integrally formed. That is, the resin drainage drain 1 of Example 2 according to the present invention was carried out except that the arrangement of the spigot joint 4a and the socket joint 4b of the universal pipe joint 4 arranged on the downstream side was arranged in the reverse direction at the inlet / outlet. It has the same structure as the resin drainage explained in Example 1, and attaches importance to the engagement between the annular inner wall member 4c and the support members 41a and 41b arranged inside the downstream side universal pipe joint 4 (see FIG. 13) to achieve smoother running water.

The drainage basin 1 according to the present invention is a drainage basin body 2 (see FIG. 12) integrally formed with an inspection tube connecting portion 5 and a spigot joint 3a on the upstream side and a socket joint 4b on the downstream side. A socket joint 3b and a spigot joint 4a to be fitted, and annular inner wall members 3c and 4c that follow inside the pair of spigot joint and socket joint and are rotatable so as to keep the inner cross section substantially constant. Including.

The drainage basin 1 according to the present invention can be made from a general resin material such as vinyl chloride or polypropylene, like the drainage basin of Example 1, and the drainage basin 2, the socket joint 3 b attached upstream and the downstream side Each of the parts such as the spigot joint 4a and the rotatable annular inner wall members 3c and 4c attached to the body is formed by an injection molding method or a blow molding by a cold parison method.

FIG. 9 is a cross-sectional view of the resin drainage basin 1 according to the present invention shown in FIG. 8 cut in a vertical direction along a plane including its central axis. Also, in FIG. 10, the upstream and downstream universal pipe joints 3 and 4 of the resin drainage trough 1 according to the present invention shown in FIG. 9 are bent in accordance with the gradient of the pipes connected to them. A cross-sectional view cut in the vertical direction on a plane including the central axis is shown.

As shown in FIGS. 9 and 10, the resin drainage basin 1 according to the present invention has an upstream spigot joint 3 a and a downstream socket joint 4 b formed on the drainage body 2, and the pipe axes “a” coincide with each other. Therefore, it can be easily installed in the middle of a single drainage pipe route that is arranged on a substantially straight line with a gradient, etc. Smooth running water can be guaranteed.

Further, a groove portion 30 is provided on the inner peripheral surface near the connection end of the upstream universal pipe joint 3 attached to the drainage drain 1 with the external pipe, that is, in the vicinity of the connection end of the socket joint 3b. A ring (not shown) or a rubber ring joint type receiving port 3d into which a ripple 31 is fitted is integrally formed. On the other hand, in the vicinity of the connecting end of the downstream side universal pipe joint 4 to the external pipe, that is, in the vicinity of the connecting end of the spigot joint 4a, a difference port corresponding to a rubber ring joining method having a constant length with a substantially uniform outer diameter. 4d is integrally formed.

For this reason, according to the drainage basin 1 according to the present invention, the connection work with the external piping is facilitated at the construction site, and the labor for bonding the universal pipe joint to the drainage basin body 2 is not required. It becomes possible to complete the installation work of draining water in a short time, and the construction work can be performed at low cost.

In addition, according to the present invention, the spigot joint 3a having a very short pipe length is integrally formed at the inflow port protruding outward from the drainage main body 2, and the outlet (for connecting an external pipe to the outflow port ( Since the socket joint 4b having a reduced pipe length is formed by omitting the length), it is possible to produce a resin drainage drain having a relatively large caliber even if a mold having the same size as the conventional one is used. Since the engagement of the annular inner wall member is aligned in the forward flow direction in the downstream-side universal pipe joint, smoother flowing water can be achieved. In addition, regarding the latter effect, also in the downstream side universal pipe joint 4 of the drainage main body 2 of the first embodiment, as shown in FIG. 11, the engagement of the annular inner wall member 4c is aligned in the forward flow direction. The effect of can be obtained.

FIG. 13 is a partially enlarged view of the vicinity of the universal pipe joint 4 provided on the downstream side of the resin drainage canister 1 according to the present invention shown in FIG. Although a sectional view is shown, the basic structure is the same as that of the universal pipe joint 3 provided on the upstream side, although not shown here.

Referring to FIG. 13, an outline of the universal pipe joints 3 and 4 used in the drainage basin 1 according to the present invention will be described (hereinafter, the reference numerals shown in parentheses are the universal pipes provided on the upstream side) And the universal pipe joints (3) and 4 are socket joints (3b) and 4b having partial spherical inner surfaces (33b) and 43b, and the socket joints. A spigot joint (3a), 4a having a partial spherical outer surface (33a), 43a, which is rotatably fitted in conformity with the partial spherical inner surface, and the inside of the pair of socket joints and spigot joints. And an annular inner wall member (3c), 4c that is rotatable so as to keep the inner cross section substantially constant, and a socket joint 4b provided on the downstream side (and a spigot joint 3a provided on the upstream side) is drained. More and more books It is molded 2 and together.

In this case, the socket joint 4b that protrudes outward from the drainage main body 2 and is integrally formed on the downstream side can omit the length corresponding to the outlet for connecting the external piping, The spigot joint 3a formed integrally with the spigot joint 3a is formed by dividing the spigot joint partial spherical outer surface 33a into a spigot joint main body 34a and a spigot ring 35a as in the case of the spigot joint of the first embodiment, and configuring them as separate parts. (See FIG. 5).

As a result, the projection lengths d ₁ and d ₂ (see FIG. 12) of the socket joint 4b and the spigot joint 3a are sufficiently larger than the pipe lengths of the inlet and outlet provided in the conventional drainage basin. Although the length corresponding to the outlet of the downstream socket joint 4b is omitted and the upstream spigot joint 3a is divided, the diameter is larger by an amount corresponding to the omitted and divided length. It becomes possible to integrally mold the drainage basin.

Also, on the partial outer surface (33a) and 43a of the spigot joint 4a that is rotatably fitted to the socket joint 4b, in order to make the fitting with the partial inner surface (33b) and 43b of the socket joint liquid-tight. O-rings (36), 46, and grooves (37), 47 for fitting and fixing the O-rings (36), 46 are provided in the circumferential direction.

The annular inner wall members (3c) and 4c arranged inside the spigot joint and the socket joint are a support member (32a) protruding from the base of the spigot joint, and a support member (32b) protruding from the base of the spigot joint and 42a. , 42b is supported in a bowl shape so as to descend a small connection step with respect to running water.

For this reason, the spigot joints (3a), 4a and the socket joints (3b), 4b function as guide members for connecting the flexible pipe joints in a liquid-tight manner and forming a bent portion smoothly and freely. The annular inner wall members (3c), 4c and the support members (32a, 32b), 42a, 42b function as flowing water smoothing members for eliminating concave portions and steps generated in the universal pipe joint.

That is, according to the resin drainage basin 1 according to the present invention, the ring is rotatable so as to follow the inside of the spigot joints (3a), 4a and the socket joints (3b), 4b and keep the inner cross section substantially constant. Since the universal pipe joint (3) and 4c including the inner wall members (3c) and 4c are drained integrally on the upstream side and the downstream side of the main body 2, piping connected to the upstream side and piping connected to the downstream side It is possible to connect the pipes so that the angle can be freely adjusted without generating a liquid reservoir between them.

Moreover, the free swing angle of the universal pipe joints (3) and 4 used in the present invention can be adjusted to be rotatable over a wide range from −15 ° to + 15 °. For this reason, it becomes possible to adjust the connection angle separately in any direction according to the gradient of each pipe between the drainage main body 2 and the upstream and downstream pipes connected thereto. Even in the middle of a piping path having a relatively large gradient change or bend between the piping and the downstream piping, the drainage drain 1 according to the present invention can be easily installed.

FIG. 12 shows a cross section of the drainage main body 2 according to the present invention in which a spigot joint 3a is integrally formed on the upstream side and a socket joint 4b is integrally formed on the downstream side, cut in a vertical direction along a plane including its central axis. The figure is shown.

According to the present invention, as described above, the protruding lengths d ₁ and d ₂ of the upstream spigot joint 3 a and the downstream socket joint 4 b that are integrally molded by protruding outward from the drainage main body ₂ are the same as the conventional ones. Compared to the length of the inlet and outlet pipes provided in the drainage basin, it is extremely short. For this reason, the drainage basin 1 according to the present invention is a mold having a normal size using an ordinary injection molding machine, and an inlet and a stream projecting outward from the drainage basin body 2. Since the outlet pipe length is shortened, a resin drainage tank having a relatively large diameter can be integrally formed.

In addition, according to the present invention, since the protruding lengths d ₁ and d _{2 of the} spigot joint 3a and the socket joint 4b integrally formed on the drainage main body ₂ are extremely short, as described in the first embodiment. Even after the construction of the drainage, it is possible to easily avoid the load from the vehicle on the road on the spigot joint 3a and the socket joint 4b. Can protect against accidental breakage.

FIG. 14 is a plan view of a resin drainage drain 1 according to the third embodiment of the present invention in which two universal pipe joints 3 and 3 ′ are provided on the upstream side and one universal pipe joint 4 is provided on the downstream side. FIG. 15 is a side view of the resin drainage trough 1 shown in FIG.

The drainage basin 1 according to the present invention comprises a drainage basin body 2 integrally formed with an inspection tube connecting portion 5 upward, two spigot joints 3a and 3a 'on the upstream side, and one spigot joint 4a on the downstream side, and a rotation thereof. Socket joints 3b, 3b 'and 4b which are freely fitted, and an annular inner wall member 3c which can follow the inside of the pair of spigot joints and socket joints and can be rotated so as to keep the inner cross section substantially constant, 3c ′, 4c (not shown).

The arrangement of the two universal pipe joints 3, 3 ′ provided on the upstream side and the one universal pipe joint 4 provided on the downstream side is appropriately determined in consideration of smooth flowing water in the drain 1. In general, the pair of upstream spigot joint 3a and downstream spigot joint 4a is preferably arranged so that their pipe axes coincide with each other.

In addition, if there is no problem with the installation space on the main body 2, two or more universal pipe joints (inflow ports) can be provided on the upstream side, and if more smooth running water is important, the water will be drained. The downstream spigot joint 4a integrally molded on the main body 2 may be replaced with a socket joint as shown in the second embodiment and integrally molded.

In addition, the drainage basin 1 according to the present invention can be made from a general resin material such as vinyl chloride or polypropylene, as in the drainage basins of Examples 1 and 2. Each of the parts such as 3b and 3b ′ and the socket joint 4b attached to the downstream side and the rotatable annular inner wall members 3c, 3c ′ and 4c is formed by an injection molding method or a blow molding by a cold parison method.

The basic structures of the universal pipe joints 3, 3 ′ and 4 provided on the upstream side and the downstream side used in the drainage basin 1 according to the present invention are the same as those of the universal pipe joints described in Examples 1 and 2. It is the same as the structure.

As a result, according to the present invention, a plurality of external drainage pipes can be received from the upstream side, and after these pipes are drained together in the drain 1, the downstream side is connected to one drainage pipe. Even in a drainage basin location where functions such as integrated drainage are required, a liquid pool is created between the drainage body 2 and the pipe connected to the upstream side and the pipe connected to the downstream side. Therefore, it is possible to provide a drainage drain made of resin having a relatively large caliber, in which piping can be connected with adjustable angle.

It is a side view of the resin drainage basin of Example 1 according to the present invention in which spigot joints are integrally formed among the components of the universal pipe joints on the upstream side and the downstream side of the drainage basin body. FIG. 2 is a cross-sectional view of the resin drainage slag according to the present invention shown in FIG. 1 cut in a vertical direction along a plane including the central axis. 3 is a plane including a central axis when the upstream and downstream universal pipe joints of the resin drainage slag according to the present invention shown in FIG. 2 are bent in accordance with the gradient of the pipes connected to them. It is sectional drawing cut out in the perpendicular direction. FIG. 4 is a cross-sectional view of the main body of the resin drainage basin according to the present invention shown in FIGS. 1 and 2 cut in a vertical direction along a plane including its central axis. FIG. 5 is a cross-sectional view of the resin drainage slag according to the present invention shown in FIG. 3, partially enlarged in the vicinity of the universal pipe joint provided on the downstream side, and cut in the vertical direction along a plane including the central axis. is there. FIG. 6 is a side view showing a construction example when the drainage basin according to the present invention shown in FIGS. 1 and 2 is connected when the pipes connected to the upstream side and the downstream side have a certain gradient. is there. 7 according to the present invention shown in FIGS. 1 and 2 when the pipe connected to the upstream side has a certain bending angle and the pipe connected to the downstream side has a certain gradient. It is the side view which showed the construction example at the time of connecting a drainage basin. The spigot joint of the universal pipe joint is integrally molded on the upstream side of the drainage main body, and the socket joint of the universal pipe joint is integrally molded on the downstream side. It is a side view. FIG. 9 is a cross-sectional view of the resin drainage basin according to the present invention shown in FIG. 8 cut in a vertical direction along a plane including its central axis. FIG. 10 is a plane including the central axis when the upstream and downstream universal pipe joints of the resin drainage slag according to the present invention shown in FIG. 9 are bent in accordance with the gradient of the piping connected to them. It is sectional drawing cut out in the perpendicular direction. FIG. 11 is a cross-sectional view showing a case where the meshing of the annular inner wall member is aligned in the forward flow direction in the downstream side universal pipe joint in the resin drainage basin of the first embodiment. FIG. 12 is a cross-sectional view of the main body of the resin drainage slag according to the present invention shown in FIGS. 8 and 9 cut in a vertical direction along a plane including its central axis. FIG. 13 is a sectional view of the resin drainage slag according to the present invention shown in FIG. is there. FIG. 14 is a plan view of a resin drainage basin according to the third embodiment of the present invention in which two universal pipe joints are provided on the upstream side and one universal pipe joint 4 is provided on the downstream side. FIG. 15 is a side view of the resin drainage basin shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Resin drainage body 2 Drainage body 3, 3 'Upstream side universal pipe joint 4 Downstream side universal pipe joint 3a, 3a', 4a Spigot joint 3b, 3b ', 4b Socket joint 3c, 3c', 4c Annular inner wall member 5 Inspection tube connection 6 Inspection tube 7 Protective housing seat 8 Protective housing

Claims (6)

It is a plastic drainage with inspection tube connections upward and universal pipe joints on the upstream and downstream sides,
The universal pipe joint includes a socket joint having a partial spherical inner surface, a spigot joint having a partial spherical outer surface that is rotatably fitted in accordance with the partial spherical inner surface of the socket joint, and the socket joint and An annular inner wall member that follows the inside of the spigot joint and is rotatable to keep the inner cross section substantially constant,
The drainage made of resin is characterized in that the spigot joint is integrally formed on the upstream side and the downstream side of the drainage body. It is a plastic drainage with inspection tube connections upward and universal pipe joints on the upstream and downstream sides,
The universal pipe joint includes a socket joint having a partial spherical inner surface, a spigot joint having a partial spherical outer surface that is rotatably fitted in accordance with the partial spherical inner surface of the socket joint, and the socket joint and An inner wall member that follows the inside of the spigot joint and is rotatable to keep the inner cross section substantially constant,
The drainage made of resin is characterized in that the spigot joint is integrally formed on the upstream side of the drainage main body, and the socket joint is integrally formed on the downstream side.   A rubber ring joint type receiving port is formed at the connection end of the universal pipe joint provided on the upstream side with the external pipe, and at the connection end with the external pipe of the universal pipe joint provided on the downstream side. The drainage made of resin according to claim 1 or 2, wherein an opening corresponding to a rubber ring joining method is formed.   The resin drainage according to claim 1 or 2, wherein the swivel angle of the universal pipe joint is rotatable within a range of -15 ° to + 15 °.   The upstream spigot joint and the downstream spigot joint formed on the drainage drain main body, or the upstream spigot joint and the downstream socket joint are arranged so that their pipe axes coincide with each other. The resin drainage according to claim 1 or 2, characterized in that. The resin drainage according to claim 1 or 2, wherein at least two universal pipe joints are provided upstream of the drainage main body.

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