JP2002173972A - Horizontal drain pipe with socket, drain pipe joint and piping structure for drainage in dressing room using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a horizontal drain pipe with a socket, and a drain pipe joint allowing the drainage construction of various sanitary fixtures such as a toilet bowl with a small number of parts and few construction man-hours. SOLUTION: This horizontal drain pipe with the socket comprises a horizontal drain pipe of oval cross section and a socket the whole of which is provided integrally with the horizontal drain pipe, having a cylindrical fitting holding part horizontally extended from the peripheral edge of a side face opening of the horizontal drain pipe. The upstream side end part of the fitting holding part fittingly holds the downstream side end part of the cylindrical drain pipe joint connected to a drain port of various sanitary fixtures such as the toilet bowl. The drain pipe joint comprises a drain port side cylinder part with its upstream side end part connected to the drain port of various sanitary fixtures such as the toilet bowl, a socket side cylinder part connected in an internally communicating state to the drain port side cylinder part and connected at its downstream side end to the side face opening of the horizontal drain pipe of oval cross section through the socket, and a water guide provided in the socket side cylinder part. The water guide is shaped to turn the flow of sanitary sewage in the socket side cylinder part toward the lower reaches of the horizontal drain pipe.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain horizontal pipe with a socket, a drain pipe joint, and a drainage piping structure in a restroom using the same, and more particularly to a member for reducing drainage work of various sanitary appliances such as toilets. The present invention relates to a drainage horizontal pipe with socket and a drainage pipe joint which can be constructed so that the height of the sanitary ware is not restricted while performing with the number of points and the number of construction steps, and a drainage piping structure in a restroom using the same.

[0002]

2. Description of the Related Art In a building, a hotel, an apartment house, etc. having a plurality of floors, a drainage structure using a circular drainage horizontal pipe has conventionally been used.
A separate venting pipe must be provided to prevent the drain trap from being opened. Therefore, in recent years, a construction method using a drainage horizontal pipe having an oval cross section has been proposed and implemented. Since the drainage horizontal pipe having an oval cross section reliably forms a wastewater passage space at the lower part and an air passage space at the upper part, it is possible to prevent the drainage trap from being opened without providing a ventilation pipe.

As a drainage structure using a drainage horizontal pipe having an oval cross section, the following has been proposed. FIG. 19 is a side view schematically showing the drainage structure, and FIG. 20 is a front view showing a pipe portion in the drainage structure. As shown in these figures, the drainage lateral pipe (30) and the drainage port (not shown) of the toilet (31) are provided with a Qi (so-called T) (32),
Two circular pipes (33) and these circular pipes (3
3) A vent (34) for connecting each other and a connecting pipe (35)
And are connected through. These members are fitted and connected to each other by applying an adhesive.

A construction method for obtaining the drainage structure will be described. First, the frame (37) is installed at a predetermined interval from the wall surface (36). A beam member (38) extending in the lateral direction is provided in the middle of the frame (37). Next, after applying an adhesive to the end of each drainage horizontal pipe (30), the drainage horizontal pipes (30) are connected to each other by Qi (32). Next, the horizontal drain pipe (30) is held on the beam member (38) of the frame (37) by the wire rod (39). At this time, by adjusting the height of each wire (39),
A predetermined drain gradient can be given to the drain horizontal pipe (30). Next, a circular cross-section pipe (33) arranged in the vertical direction to a length corresponding to the height of the drain horizontal pipe (30) is cut. After applying an adhesive to one end thereof, the circular tube (33) is inserted into the tube (33).
Connect to the top of 2). After applying an adhesive to the upper end of the circular pipe (33), a vent (34) is connected to the upper end. Next, the other circular cross-section pipe (33) is cut in accordance with the thickness of the decorative board (40). This circular tube (33)
After the adhesive is applied to the end of, the end is connected to the vent (34). Next, after applying an adhesive to the tubular portion of the substantially funnel-shaped connecting tube (35), the tubular portion is connected to the circular tube (33). Finally, the drain port of the toilet (31) is connected to the truncated cone of the connecting pipe (35).

According to this drainage structure, each member such as the horizontal drainage pipe (30) and the frame (37) can be individually carried into the site and assembled by one or a small number of people. Therefore, the construction can be performed at a relatively low cost, and the members can be easily carried on site.

[0006]

However, the above-mentioned drainage structure has at least a Qi (32), two circular pipes (33), a vent (34), and a connecting pipe (3).
5) 5 members are required. In this case, the storage space for these pipes increases, and the effective space of the restroom decreases accordingly. Further, not only these members but also the drain horizontal pipe (30) and the Qi (32) must be connected by an adhesive. In addition, one circular pipe (33) must be cut one by one according to the height of the horizontal drain pipe (30). Further, since the pipe extends from the upper part of the horizontal drain pipe (30), the position of the drain port of the toilet (31) is inevitably high, and it is difficult to install the toilet (31) at a low position. .

In addition to the above drainage structure, there is a drainage structure capable of draining water toward the side opening of the horizontal drainage pipe (FIG. 2).
1). In this drainage structure, a pipe (61) extends obliquely upward from a side opening of a horizontal drain pipe (60), and a first spherical portion (62) is provided at the tip of the pipe (61). A second spherical portion (63) which is fitted inside the first spherical portion (62) inside the one spherical portion (62) and is rotatable up and down.
And a cylindrical connecting pipe holding part (64) is provided in the second spherical part (63), and one end of the connecting pipe (65) is connected to the connecting pipe holding part (64). There is a drainage structure.
This drainage structure has been developed for so-called sewage pipes in which the drainage horizontal pipe (60) is buried deep underground, and is sometimes used for toilet drainage. Indeed, the first
By providing the spherical portion (62) and the second spherical portion (63), the second spherical portion (63) is rotatable in the vertical direction, whereby the horizontal drainage pipe (60) is buried deep in the ground. Even if it is, the horizontal drain pipe (60) and the drain port on the ground can be connected at any angle via the connecting pipe (65). However, when this drainage structure is arranged along the wall of the restroom, the first spherical part (62) and the second spherical part (6)
Since 3) is large and long, the distance between the toilet and the drain horizontal pipe (60) has to be set large. In this case, there is a problem that the space occupied by the drain pipe in the restroom becomes large.

The present invention has been made in view of the above circumstances, and performs drainage of various sanitary appliances such as toilets with a small number of members and man-hours, and also works so that the height of the sanitary appliances is not restricted. It is an object of the present invention to provide a drainage horizontal pipe with a socket, a drainage pipe joint, and a drainage piping structure in a restroom using the same.

[0009]

According to the first aspect of the present invention,
A socket having a drainage horizontal pipe having an oval cross section and a cylindrical fitting holding portion extending laterally from the periphery of a side opening of the drainage horizontal pipe, the socket being provided integrally with the drainage horizontal pipe. Wherein the fitting holding portion fits and holds the downstream end of a cylindrical drain pipe joint whose upstream end is connected to the drain port of various sanitary appliances such as toilets. It is a drainage horizontal pipe with a socket.

According to a second aspect of the present invention, an upstream end portion is connected to a drain port side tubular portion connected to a drain port of various sanitary appliances such as a toilet, and the drain port side tubular portion is connected to the drain port side tubular portion in an internal communication state. The downstream end is composed of a socket-side tubular portion connected to the side opening of the drainage horizontal pipe having an oval cross section via a socket, and a running water guide provided in the socket-side tubular portion. A drain pipe joint characterized by having a shape that directs the flow of sewage in the socket-side tubular portion to the downstream side of the drain horizontal pipe.

According to a third aspect of the present invention, an upstream end is connected to a drain port side tubular portion connected to a drain port of various sanitary appliances such as a toilet, and a side opening of a drain horizontal pipe having an oval cross section. A horizontal pipe connecting portion, and a diagonal cylindrical portion connecting the horizontal pipe connecting portion and the drain port side cylindrical portion in an internal communication state. The diagonal cylindrical portion directs the flow of sewage in the diagonal cylindrical portion downstream of the drain horizontal pipe. A drainage pipe joint extending in a direction toward the side.

According to a fourth aspect of the present invention, there is provided a drainage horizontal pipe having an oval cross section, and a cylindrical fitting holding portion extending laterally from a peripheral edge of a side opening of the drainage horizontal pipe, and the entirety of the drainage horizontal pipe. A socket integrally provided with the pipe, and a tubular shape in which a downstream end is fitted to the fitting holding portion of the socket and an upstream end is connected to a drain port of various sanitary appliances such as a toilet. A drainage pipe structure in a restroom, comprising:

According to a fifth aspect of the present invention, the drainage pipe joint has a socket-side cylindrical portion fitted and held in the socket.
A drain port-side cylinder portion provided in an internal communication state at an upstream end of the socket-side cylinder portion and connected to the drain port, and a running water guide provided in the socket-side tube portion, and the running water guide is The drainage piping structure in a restroom according to claim 4, characterized in that the drainage pipe structure is configured to direct the flow of sewage in the socket-side cylindrical portion toward the downstream side of the drainage horizontal pipe.

According to a sixth aspect of the present invention, the diameter of the socket-side tubular portion is larger than the diameter of the drain-port-side tubular portion, and between the socket-side tubular portion and the drain-port-side tubular portion, 6. A frustoconical central tubular portion which connects the socket-side tubular portion and the drain port-side tubular portion in an internal communication state.
The drainage piping structure in the restroom described in 1 above. By providing these inventions, the above problems are completely solved.

[0015]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view showing the structure of a drainage horizontal pipe with a socket according to the present invention. FIG. 2 shows FIG.
It is sectional drawing which shows the use condition of the drainage horizontal pipe with a socket shown in FIG. The horizontal drainage pipe with socket according to the present invention comprises a horizontal drainage pipe (4) and a socket (3). Hereinafter, these components will be sequentially described in detail.

The drainage horizontal pipe (4) has an oval cross section in which the radius of curvature of the upper portion is larger than the radius of curvature of the lower portion. This drain horizontal pipe (4) is installed so as to have a predetermined drain gradient, and the drain gradient is set to, for example, about 1/200. A plurality of toilet bowls (26) (see FIG. 2) are connected to the drain horizontal pipe (4) at required intervals in the length direction. Although the material of the drainage horizontal pipe (4) is not particularly limited, for example, a hard synthetic resin such as hard vinyl chloride can be used. As shown in FIGS. 1 and 2, a side opening (16) is formed on the side surface of the drain horizontal pipe (4), and a fitting holding portion (3) of the socket (3) is formed from a peripheral edge of the side opening (16). 19) is extended.

The socket (3) is a downstream end of a cylindrical drainage pipe joint (1) (see FIG. 2) whose upstream end is connected to a drainage port (2) of a sanitary appliance such as a toilet (26). It is for fitting and holding the part. The socket (3) has a cylindrical fitting and holding portion (19) extending outward and laterally from the periphery of the side opening (16) of the horizontal drainage pipe (4). The socket (3) may be integrally formed around the side opening (16) of the horizontal drain pipe (4) as shown in FIGS. 1 and 2, or alternatively, as shown in FIGS. As shown,
It may be formed separately from the drain horizontal pipe (4) at first, and then fixed to the peripheral portion of the side opening (16) with an adhesive or the like.
It is preferable that the socket (3) is formed in advance in the periphery of the side opening (16) of the horizontal drain pipe (4) in consideration of the workability and storage property at the site. The material of the socket (3) is not particularly limited, but a hard synthetic resin such as hard vinyl chloride can be suitably used.

FIGS. 1 and 2 show an example in which the socket (3) and the drain horizontal pipe (4) are integrally formed. In this case, the socket (3) can be constituted only by the cylindrical fitting and holding portion (19). FIGS. 3 and 4 show an example in which the socket (3) and the horizontal drain pipe (4) are formed separately, and these are later fixed to each other with an adhesive or the like. FIGS. 5A and 5B are views showing the socket (3) in this case, wherein FIG. 5A is a front view thereof, and FIG. 5B is a sectional view taken along line AA in FIG.

When the socket (3) and the horizontal drain pipe (4) are formed separately, the socket (3) is provided with a cylindrical fitting and holding portion (19) to fix them together. And a plate-shaped socket fixing portion (17). Socket fixing part (1
7) has a curved shape along the side outer surface of the horizontal drainage pipe (4), whereby the socket fixing part (17) is
It can be tightly fixed to the side outer surface of the horizontal drain pipe (4). The socket fixing portion (17) has an opening (18) at a position corresponding to the side opening (16) formed on the side of the horizontal drainage pipe (4). A tubular joint holding portion (19) is provided on the periphery of the opening (18). The position of the opening (18) can be appropriately changed according to the height of the side opening (16), as shown by the two-dot chain line in FIG. The means for fixing the socket fixing portion (17) to the horizontal drain pipe (4) is not particularly limited, and can be fixed using, for example, an adhesive. In addition, a seal member (20) (see FIGS. 3 and 4) made of a plate-like rubber is prepared, an adhesive is applied to one surface thereof, and the applied surface is adhered to the socket fixing portion (17) to seal the seal member (20). ) Is fixed to the socket fixing portion (17), and this sealing member (2) is fixed.
0) An adhesive may be applied to the other surface, and the applied surface may be adhesively fixed to the outer side surface of the horizontal drain pipe (4).

In order to further firmly fix the socket fixing portion (17) to the drain horizontal pipe (4), as shown in FIG. 6, the socket fixing section (17) is connected to the drain horizontal pipe (4). )
After the adhesive is fixed to the socket, the band (2) is tightened around the drain horizontal pipe (4) so as to press the outer surface of the socket fixing part (17).
1) may be attached. The type of the tightening band (21) is not particularly limited. For example, a rubber ring-shaped band is used, or ends of the band-shaped flexible bands are overlapped with each other and rounded into a ring shape. A ring-shaped member whose inner diameter can be changed by rotating a worm screw provided in the overlapping portion can be used. Regardless of whether the socket (3) and the horizontal drain pipe (4) are formed integrally or separately, the socket fixing part (17) holds the cylindrical drain pipe joint (1). The means is not particularly limited. For example, the downstream end of the drainage pipe joint (1) may be externally fitted to the socket fixing portion (17) as shown in FIG. 2, or may be internally fitted as shown in FIG. Can be fitted and fixed.

Further, the form of the socket (3) is not limited to the above-described form, and the following configuration can be adopted.
7 to 9 are diagrams showing examples of the socket (3). This socket (3) is composed of a sleeve (40) and a short tubular sleeve fixing body (41). The upstream side of the sleeve (40) is a joint fitting section (42) for fitting and holding the drainage pipe joint (1), and the downstream side is a fixed body fitting section (43) for fitting and holding the sleeve fixed body (41).
It has been. The joint fitting portion (42) and the fixed body fitting portion (4)
A ring-shaped protrusion (44) is formed at the boundary of (3) along the inner peripheral surface of the sleeve (40). When the ends of the joint fitting portion (42) and the fixed body fitting portion (43) abut on the ring-shaped protrusion (44), the respective positioning can be performed.

The end surface of the fixed body fitting portion (43) has a curved shape along the side surface of the drain horizontal pipe (4). Therefore,
The entire end surface of the fixed body fitting portion (43) can be in close contact with the side surface of the horizontal drainage pipe (4). The downstream end face of the sleeve fixing body (41) has a curved shape substantially similar to the end face of the fixing body fitting portion (43). Sleeve fixed body (4
1) has a length such that when it is fitted and fixed in the fixed body fitting portion (43), its downstream end protrudes cylindrically from the end face of the fixed body fitting portion (43) (see FIG. 7). ). As a result, the cylindrical projecting portion can be closely fitted into the side opening (16) of the drain horizontal pipe (4), and the sleeve (40) can be fixed to the side of the drain horizontal pipe (4). An adhesive is applied to the outer peripheral surface of the protruding portion and the end surface of the fixed body fitting portion (43), and then the protruding portion is connected to the drain horizontal pipe (4).
Can be more securely fitted and fixed.

According to the horizontal drainage pipe with socket according to the present invention, the side opening (16) of the horizontal drainage pipe (4) is connected to the drainage port (2) of the sanitary fixture, so that the height of the sanitary fixture is reduced. Can be set. Therefore, the space for disposing pipes can be reduced. In addition, since a method of turning up the pipe once and then changing the direction in the lateral direction is not employed, a direction changing member such as an elbow is not required, and the number of pipe members and the number of pipe man-hours can be reduced. The entire socket (3) is provided integrally with the horizontal drain pipe (4). Therefore, the socket (3) does not have a relatively displaceable part, that is, there is no movable mechanism. If there is no movable mechanism, the socket (3) can be made compact. This means that the distance between the horizontal drain pipe (4) and the drain port (2) of the sanitary fixture can be set small.

Next, the drainage pipe joint according to the present invention will be described. FIGS. 10A and 10B are diagrams showing a first example of a drainage pipe joint according to the present invention, wherein FIG. 10A is a vertical partial cross-sectional view showing a state in which the drainage pipe joint is cut in a vertical direction, and FIG. () Is a sectional view taken in the direction of arrow D, and (c) is a sectional view taken along line EE (partial transverse sectional view) in (b). FIG. 11 is a view showing a state in which this drainage pipe joint is connected to a horizontal drainage pipe (4). FIG. 12 shows a horizontal drain pipe (4) using this drain pipe joint.
It is a figure which shows the state which connected the drain port (2) of the toilet.

The drainage pipe joint (1) according to the first example comprises a drainage-side tubular portion (6), a socket-side tubular portion (5), and a running water guide (7). This drainage pipe joint (1)
Is used by being connected to the side opening (16) of the drainage horizontal pipe (4) having an oval cross section. Hereinafter, these components will be sequentially described in detail.

The drain port side cylinder (6) has an upstream end connected to a drain port (2) of various sanitary appliances such as a toilet (26). This drain port side cylinder (6) is cylindrical in the illustrated example. The socket-side tubular portion (5) is connected to the drain-port-side tubular portion (6) in an internal communication state, and the downstream end portion has a side opening of a drainage horizontal pipe (4) having an oval cross section through the socket (3). Unit (16). This socket side cylinder (5)
Is cylindrical in the illustrated example. The socket-side tubular portion (5) is externally fitted or held in the fitting / holding portion (19) of the socket (3), or is held internally. Both diameters are set according to the fitting form.

The main body (8) composed of the socket side cylinder (5) and the drain port side cylinder (6) is formed in a cylindrical shape as a whole. Although the diameter of the socket-side tubular part (5) and the drain port-side tubular part (6) may be the same as each other, as shown in FIG. The diameter may be set larger than 6). When the diameter of the socket side cylinder (5) is set to be larger than the diameter of the drain port side cylinder (6), even if the flow rate in the socket side cylinder (5) is reduced by the flowing water guide (7), the socket The flow rate in the side tube part (5) and the flow rate in the drain port side tube part (6) can be balanced, and the flow does not stop in the socket side tube part (5). When the diameter of the socket side cylinder (5) is set to be larger than the diameter of the drain port side cylinder (6), the distance between the socket side cylinder (5) and the drain port side cylinder (6) is set. It is desirable to provide a truncated conical central tubular portion (46) that connects the socket-side tubular portion (5) and the drain port-side tubular portion (6) in an internal communication state. By increasing the diameter through such a truncated conical portion, it is possible to suppress the occurrence of turbulence in the pipe, and to smoothly flow sewage. The socket side cylinder (5), the drain side cylinder (6), and the center cylinder (4
Although the material of 6) is not particularly limited, for example,
A hard synthetic resin such as hard vinyl chloride can be used.

The running water guide (7) is provided in the socket side cylinder (5), and directs the flow of sewage in the socket side cylinder (5) to the downstream side of the drain horizontal pipe (4). The material of the running water guide (7) is not particularly limited, but for example, a hard synthetic resin such as hard vinyl chloride can be used. Further, the running water guide (7) may be formed in advance integrally with the socket-side tubular portion (5), but is initially formed as a separate body, and is later formed into the socket-side tubular portion (5). Alternatively, it may be fixed by an adhesive or the like.

The shape and size of the flowing water guide (7) are not particularly limited as long as the flow of sewage in the socket side cylinder (5) can be smoothly directed to the downstream side of the drain horizontal pipe (4). However, for example, it can be configured as shown in FIG. The running water guide (7) shown in FIG. 10 is provided from the open end (downstream end) of the socket-side tubular portion (5) to the opposite end (upstream end).
The running water guide (7) has a guide fixing portion (9) fixed to the inner surface of the socket-side cylinder (5), and extends from the guide fixing portion (9) to the opening end side of the socket-side cylinder (5). And a water flow direction changing part (10) which is provided, and is fixed to a side wall part corresponding to the upstream side of the drainage horizontal pipe (4) in the socket side cylinder part (5).

As shown in FIG. 10 (b), the guide fixing portion (9) is formed along one side of the inner surface of the socket-side cylindrical portion (5), and is viewed in the axial direction of the socket-side cylindrical portion (5). Is an arc-shaped portion (see FIG. 1B). The water flow direction changing portion (10) has at least a portion extending to the downstream side of the drainage horizontal pipe (4) while projecting outward from the base end portion to the tip end portion. The drainage horizontal pipe (4) is guided to the downstream side. In the example shown,
A water flow direction changing part (10) that is convex outward and extends from the base end part to the front end part, and that the entirety is curved toward the center side of the socket-side tubular part (5), and that the side part (11) that gradually decreases in diameter;
Socket side cylinder (5) from the side (11)
And a bottom portion (12) extending toward the center. The water flow direction changing portion (10) has one of two shapes formed by cutting a bowl-shaped body along a plane parallel to an axis.

In the illustrated example, the water flow direction changing unit (1)
In (0), the end surface (13) of the bottom surface (12) and the end surface (14) of the side surface (11) are configured to be located on the same plane (see FIGS. 10B and 10C). The end surfaces (13) and (14) are arranged along the vertical surface, and the end surfaces (13) and (14) face the downstream side of the drain horizontal pipe (4), that is, the lower side in FIG. 10 (c). It has become. Also, a distance (D1) between a vertical surface (α) passing through the center in the radial direction of the socket-side cylindrical portion (5) and the end surfaces (13) and (14).
(See FIG. 10 (c)) is set to be smaller than the inner diameter (D2) of the socket-side tubular portion (5) in the illustrated example.

The running water guide (7) converts the flow of sewage flowing in the socket side cylinder (5) into a water flow direction changing part (1).
0) can be reliably directed to the downstream side of the horizontal drain pipe (4) (see the arrow in FIG. 13). Therefore, most of the sewage flowing into the drainage horizontal pipe (4) does not collide with the inner wall surface of the drainage horizontal pipe (4), and only a part of the wastewater is different from the drainage pipe joint (1) in the drainage horizontal pipe (4). It collides obliquely with the downstream side wall surface located on the opposite side. In this case, most of the speed component of the sewage colliding with the side wall surface is directed to the downstream side in the axial direction of the horizontal drainage pipe (4). small. Therefore, the inflowing sewage smoothly flows toward the downstream side of the horizontal drain pipe (4). This can prevent the waste contained in the wastewater from accumulating on the upstream side, and can maintain a smooth flow in the drain horizontal pipe (4) semipermanently.

The shape of the running water guide (7) in the present invention is not limited to the above-mentioned shape. For example, the water flow direction changing portion (10) may be formed in a flat plate shape, and the direction from the base end to the front end may be obliquely directed to the downstream side of the drain horizontal pipe (4).

Next, a second embodiment of the drainage pipe joint according to the present invention will be described. FIG. 14 is a view showing a second example of the drainage pipe joint according to the present invention. FIG. 15 is a view showing a state where the drainage pipe joint is connected to a side portion of the horizontal drainage pipe. This drain pipe joint (1) has a drain port side tubular part (6) whose upstream end is connected to a drain port of various sanitary appliances such as a toilet, and a side opening of a drain horizontal pipe (4) having an oval cross section. A horizontal pipe connecting section (47) connected to the pipe section and an oblique cylindrical section (50) connecting the horizontal pipe connecting section (47) and the drain port side cylindrical section (6) in an internal communication state. The oblique tube portion (50) extends in a direction that directs the flow of sewage in the oblique tube portion (50) to the downstream side of the drain horizontal pipe (4). This drainage pipe joint (1) is also used by being connected to the side opening of the drainage horizontal pipe (4) having an oval cross section, similarly to the drainage pipe joint (1) according to the first example.

The drain pipe joint (1) according to the second example is different from the drain pipe joint (1) according to the first example in that the flow of sewage is controlled by the shape of the joint itself. is there. Therefore, the drain pipe joint (1) according to the second example
In the above, there is no need to provide a guide member in the socket-side tubular portion (5).

In the example shown in FIGS. 14 and 15, the horizontal pipe connecting portion (47) is composed of only a short tubular portion (45) fitted and connected to the socket (3). Drainage pipe fittings (1)
Is bent or curved at the boundary between the short cylindrical portion (45) and the oblique cylindrical portion (50) and at the boundary between the oblique cylindrical portion (50) and the drain side cylindrical portion (6). The bending directions are opposite to each other. The short pipe part (45) and the drain port side pipe part (6) are provided with a drain pipe joint (1).
When it is connected to the horizontal drain pipe (4), it extends in a direction substantially perpendicular to the horizontal drain pipe (4). On the other hand, the oblique cylindrical portion (50) is formed so that the direction from the upstream side to the downstream side is obliquely directed to the downstream side of the drain horizontal pipe (4). The angle between the axial direction of the drain horizontal pipe (4) and the axial direction of the oblique cylindrical portion (50) is such that the velocity component toward the drain horizontal pipe (4) becomes sufficiently small, that is, the horizontal drain pipe (4). The angle is set so that most of the sewage entering the inside does not collide with the inner wall surface, and a part of the sewage colliding does not flow backward due to the impact at the time of the collision, and is preferably about 45 °.

By configuring the drainage pipe joint (1) in this manner, the flowing direction of the sewage in the oblique cylindrical portion (50) is changed, and the sewage is slanted toward the downstream of the horizontal drainage pipe (4). Flow down. The sewage that has flowed out of the slanted tube part (50)
The flowing direction is maintained also in the inside. Therefore, most of the sewage that has entered the drainage horizontal pipe (4) from the side opening of the drainage horizontal pipe (4) is directed to the downstream side of the drainage horizontal pipe (4). The amount of collision with the inner wall is small.
Thus, it is possible to prevent the sewage from flowing backward in the drain horizontal pipe (4), and it is possible to constantly flow the waste water in the drain horizontal pipe (4) smoothly.

The structure of the drain pipe joint (1) according to the second example is not limited to the above. FIG. 16 is a plan view showing another drainage pipe joint (1) in the second example. FIG.
FIG. 7 is a plan view showing a state where the drainage pipe joint (1) is connected to a horizontal drainage pipe (4). In the example shown in FIGS. 16 and 17, the drainage pipe joint (1) has a curved plate-shaped fixing plate portion (48) in addition to the structure shown in FIGS. The fixing plate (48) has a shape along the side surface of the horizontal drainage pipe (4), and an opening (not shown) is formed at the center thereof. When the fixing plate (48) is attached to the side surface of the drain horizontal pipe (4) using an adhesive or the like, the position of the opening of the fixing plate (48) coincides with that of the side opening of the drain horizontal pipe (4). It is supposed to. The short tube portion (45) of the drainage pipe joint (1) extends outward from the periphery of the opening of the fixed plate portion (48). According to the drainage pipe joint (1) shown in FIGS. 16 and 17, the adhesive can be applied to the side surface of the horizontal drainage pipe (4) only by applying an adhesive to the back surface of the fixing plate (48). Further, it is not necessary to provide the socket (3) in the drain horizontal pipe (4).

Next, a drainage piping structure in a restroom using the drainage horizontal pipe with socket and the drainage pipe joint (1) described above will be described with reference to the drawings. FIG.
FIG. 8 is a longitudinal sectional view showing the drainage pipe structure together with its supporting structure. FIG. 13 is a cross-sectional view showing an example of the drainage pipe structure in FIG. The drainage pipe structure in the restroom according to the present invention is a drainage horizontal pipe having an oval cross section (4).
A socket (3) having a cylindrical fitting and holding portion extending outward from the periphery of the side opening (16) of the drainage horizontal pipe (4); and a downstream end portion of the socket (3). And a tubular drainage fitting (1) whose upper end is connected to the drainage port (2) of various sanitary appliances such as a toilet (26).

The horizontal drain pipe (4) is fixed to the wall surface by a fixing member (23) (see FIG. 18). Fixing member (2
3) is for fixing the horizontal drain pipe (4) to the wall surface (22). Although the form of the fixing member (23) is not particularly limited, for example, a substantially L-shaped angle member (24)
And a curved wire rod (2) whose height is adjustable at both ends.
5). Each curved wire (25)
By adjusting the height of the pipe, a desired drainage gradient can be given to the horizontal drain pipe (4).

As the drain horizontal pipe with socket (4) and the drain pipe joint (1), the drain horizontal pipe with socket (4) and the drain pipe joint (1) according to the present invention described above can be used. As shown in FIG. 13, a substantially funnel-shaped connecting pipe (27) is provided at the distal end side of the drain port side tubular portion (6) of the drain pipe joint (1).
Is connected. The connecting pipe (27) is a flexible or non-flexible member, and its tubular portion has an extending pipe portion (6).
The frusto-conical portion is water-tightly pressed to the periphery of the drain port (2) of the toilet (26) or the like via the ring-shaped sealing material (28).

Before the toilet (26) is arranged, the horizontal drain pipe (4), the drain pipe joint (1), the socket (3), the fixing member (23) and the like are concealed and protected. A frame (28) (see FIG. 18) can be provided in front of these members, and a decorative plate (29) can be mounted outside the frame (28). This frame (2
8) is, for example, a substantially Γ-shaped member. The lower end of the frame (28) is fixed on the floor, and the upper end side is fixed on the wall (22).

In the above embodiment, the horizontal drain pipe (4)
Although drainage to only one side is assumed, the present invention is not limited to this, and it may be configured to drain to both sides of the horizontal drainage pipe. This is adopted, for example, when drain horizontal pipes are arranged in the partition walls of the men's restroom and women's restroom, and drainage from the toilets arranged in both toilets is performed by one drain horizontal pipe. can do. In this case, though not shown, side openings may be formed on both sides of the horizontal drainage pipe, the above-mentioned sockets may be provided on the periphery of each side opening, and a drainage pipe joint may be connected to these sockets. In addition, here, the structure shown in FIG. 13 has been described as an example of the drainage piping structure, but it is a matter of course that other structures described in this specification can be adopted.

[0044]

According to the first aspect of the present invention, since the drain port of the sanitary fitting is connected to the side opening of the horizontal drain pipe, the height of the sanitary fitting can be set low. Therefore, the installation space for the piping can be reduced. Also, when connecting the drainage port of the sanitary ware to the horizontal drainage pipe, a method of turning up the pipe once and then changing the direction in the horizontal direction is not adopted, so a direction change member such as an elbow is not required, and piping The number of members and the number of piping steps can be reduced. Further, the entire socket is provided integrally with the drain horizontal pipe. Therefore, the socket has no relatively displaceable part, that is, there is no movable mechanism. If there is no movable mechanism, the socket can be made compact. Thereby, the interval between the drain horizontal pipe and the drain outlet of the sanitary fixture can be set small.

According to the drainage pipe joint of the second aspect, the drainage port of the sanitary fitting can be connected to the side opening of the horizontal drainage pipe. Therefore, the height of the sanitary ware can be set low, and the arrangement space for the plumbing can be reduced. In addition, the flow of sewage in the socket-side tubular portion can be reliably directed to the downstream side of the drain horizontal pipe by the running water guide. Therefore, all the sewage flowing into the horizontal drainage pipe surely flows toward the downstream side of the horizontal drainage pipe. Thus, it is possible to prevent the waste contained in the sewage from accumulating on the upstream side of the horizontal drain pipe, and to maintain a smooth flow in the horizontal drain pipe semipermanently.

According to the drainage pipe joint of the third aspect, the drainage port of the sanitary fitting can be connected to the side opening of the horizontal drainage pipe. Therefore, the height of the sanitary ware can be set low, and the arrangement space for the plumbing can be reduced. In addition, since the slanted tubular portion extends in a direction that directs the flow of sewage in the slanted tubular portion to the downstream side of the drainage horizontal pipe, the flow of sewage flowing into the drainage horizontal pipe can be reliably directed to the downstream side. Therefore, all the sewage flowing into the horizontal drainage pipe surely flows toward the downstream side of the horizontal drainage pipe. This allows
The waste contained in the sewage can be prevented from accumulating on the upstream side of the horizontal drain pipe, and the smooth flow in the horizontal drain pipe can be maintained semipermanently.

According to the fourth aspect of the present invention, since the drain port of the sanitary fitting is connected to the side opening of the horizontal drain pipe, the height of the sanitary fitting can be set low. Therefore, the space for arranging the pipes can be reduced. Also, when connecting the drainage port of the sanitary ware to the horizontal drainage pipe, a method of turning up the pipe once and then changing the direction in the horizontal direction is not adopted, so a direction change member such as an elbow is not required, and piping The number of members and the number of piping steps can be reduced. Further, the entire socket is provided integrally with the drain horizontal pipe. Therefore, the socket has no relatively displaceable part, that is, there is no movable mechanism. If there is no movable mechanism, the socket can be made compact. Thereby, the interval between the drain horizontal pipe and the drain outlet of the sanitary fixture can be set small.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first example of a drainage horizontal pipe with a socket according to the present invention.

FIG. 2 is a sectional view showing a use state of the drainage horizontal pipe with a socket shown in FIG. 1;

FIG. 3 is a sectional view showing a second example of the drainage horizontal pipe with socket according to the present invention.

FIG. 4 is a sectional view showing a use state of the drainage horizontal pipe with a socket shown in FIG. 3;

5A and 5B are views showing the socket shown in FIG. 3, wherein FIG. 5A is a front view thereof, and FIG. 5B is a sectional view taken along line AA in FIG.

6 is a view showing a state in which the socket shown in FIG. 5 is attached to a side portion of the horizontal drain pipe.

FIG. 7 is a sectional view showing a third example of the drainage horizontal pipe with socket according to the present invention.

8A and 8B are diagrams showing a sleeve of the socket shown in FIG. 7, wherein FIG. 8A is a cross-sectional view thereof, and FIG.

9A and 9B are views showing the sleeve fixing body of the socket shown in FIG. 7, wherein FIG. 9A is a cross-sectional view thereof, and FIG. 9B is a view taken in the direction of arrow C in FIG.

FIGS. 10A and 10B are diagrams showing a first example of a drainage pipe joint according to the present invention, wherein FIG. 10A is a longitudinal partial cross-sectional view, and FIG.
(C) is EE in (b).
It is a line sectional view.

11 is a longitudinal sectional view showing a state in which the drainage pipe joint shown in FIG. 10 is attached to a side portion of a horizontal drainage pipe via a socket.

12 is a cross-sectional view showing a state in which a drain horizontal pipe and a drain port of a toilet are connected using the drain pipe joint shown in FIG. 10;

13 is a cross-sectional view showing a state in which a drain horizontal pipe and a drain port of a toilet are connected using the drain pipe joint shown in FIG. 10;

FIG. 14 is a plan view showing one of a second example of the drainage pipe joint according to the present invention.

15 is a plan view showing a state where the drainage pipe joint shown in FIG. 14 is connected to a horizontal drainage pipe.

FIG. 16 is a plan view showing one of the second examples of the drainage pipe joint according to the present invention.

17 is a plan view showing a state where the drainage pipe joint shown in FIG. 16 is connected to a horizontal drainage pipe.

FIG. 18 is a partial cross-sectional perspective view showing the drainage pipe structure according to the present invention including its support structure.

FIG. 19 is a side view schematically showing a conventional drainage structure.

FIG. 20 is a front view showing a pipe portion in the drainage structure shown in FIG. 19;

FIG. 21 is a partial sectional view showing another example of a conventional drainage structure.

[Explanation of symbols]

 1 ···· Drainage pipe joint 2 ···· Drainage port 3 ······ Socket 4 ········· Drainage horizontal pipe 5 ·············· Drainage Mouth side tube part 7 Flowing guide 46 Central tube part Horizontal pipe connection part 50

Claims (6)

[Claims] 1. A drainage horizontal pipe having an oval cross section, and a cylindrical fitting holding portion extending laterally from a peripheral edge of a side opening of the horizontal drainage pipe, the whole being integrally formed with the horizontal drainage pipe. And the fitting holding portion fits and holds the downstream end of a cylindrical drain pipe joint whose upstream end is connected to the drain port of various sanitary appliances such as toilets. A drainage horizontal pipe with a socket, characterized in that: 2. An outlet-side tubular portion having an upstream end connected to a drainage outlet of various sanitary appliances such as a toilet, and a drain-side tubular portion connected in internal communication with the drain-side tubular portion. And a running water guide provided in the socket-side tubular portion, which is connected to the side opening of the drainage horizontal pipe having an oval cross-section, and the running-water guide is provided with sewage water in the socket-side tubular portion. A drain pipe joint characterized in that the flow of water is directed to the downstream side of the drain horizontal pipe. 3. A drain port side tubular portion having an upstream end connected to a drain port of various sanitary appliances such as a toilet, and a horizontal pipe connecting portion connected to a side opening of a drain horizontal pipe having an oval cross section. A diagonal tube connecting the horizontal pipe connection portion and the drain port side cylinder in an internal communication state, and the diagonal tube extends in a direction in which the flow of sewage in the diagonal tube is directed to the downstream side of the drain horizontal tube. A drain pipe joint characterized by the following. 4. A drainage horizontal pipe having an oval cross section, and a cylindrical fitting holding portion extending laterally from a peripheral edge of a side opening of the horizontal drainage pipe, the whole being integrally formed with the horizontal drainage pipe. And a cylindrical drain pipe joint whose downstream end is fitted to the fitting holding portion of the socket and whose upstream end is connected to the drain port of various sanitary appliances such as toilets. A drainage piping structure in a restroom. 5. The drainage pipe joint is provided with a socket-side tubular portion fitted and held in the socket, and a drain connected to the drainage port provided in an internal communication state at an upstream end of the socket-side tubular portion. It comprises a mouth-side tube portion and a running water guide provided in the socket-side tube portion, and the running-water guide has a shape that directs the flow of sewage in the socket-side tube portion to the downstream side of the drain horizontal pipe. The drainage piping structure in the restroom according to claim 4. 6. The diameter of the socket-side tubular portion is larger than the diameter of the drain-port-side tubular portion, and the socket-side tubular portion and the drain-port-side tubular portion are provided between the socket-side tubular portion and the drain-port-side tubular portion. The drainage piping structure in a restroom according to claim 5, further comprising a truncated cone-shaped central tubular portion that connects the drainage-side tubular portion in an internal communication state.