JP2739422B2 - Connection body of small drainage mass and small drainage mass - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small drainage mass suitable for use in a general house, and more particularly to a small drainage mass connecting body and a small drainage mass which are easy to construct and can be used even in a narrow buried place.

[0002]

2. Description of the Related Art The drainage system of a general house is composed of a drainage branch pipe and a drainage main pipe. That is, a drain main pipe is arranged around the house, and a drain branch pipe extended from each place of the house base to the outside is connected to the drain main pipe. A small drainage mass is provided at the connection of each drainage branch to the drainage main for the purpose of inspection and cleaning and installation of a deodorizing trap. This small drainage mass is generally made of synthetic resin, and has an inflow pipe connected to a drainage branch at the top outer periphery, a discharge pipe at the bottom, and a drainage main connected to the discharge pipe. It is.

[0003]

However, the conventional small drainage mass has the following problems when connecting pipes and burying them. (1) When connecting a drainage branch pipe to a small drainage mass connected to the drainage pipe, the drainage branch pipe and the inflow pipe are bent in a state where the drainage pipe is bent by an amount of glue for bonding the drainage branch pipe and the inflow pipe section. Parts had to be connected. (2) Since the drainage main pipe needs to be bent, the excavation width for burying the drainage main pipe must be considerably widened. (3) Since the drainage main pipes are further bent to connect the drainage branch pipes, backfilling of the drainage main pipes cannot be performed until the connection is completed. (4) In order to easily bend the drain main pipe, it is necessary to connect the drain branch pipes sequentially from one of the drain main pipes, which limits the degree of freedom in construction. (5) Furthermore, when installing in a narrow space such as a fence at the site boundary, it may not be possible to take a space to bend the drain main pipe, and construction may not be possible. Therefore, an object of the present invention is to solve such a problem of the conventional small drainage mass.

[0004]

That is, according to the present invention, there is provided a connector for a small drainage mass connected to a mass main body 2 having a horizontal drainage discharge pipe portion 6 at a lower portion thereof, wherein a lower end peripheral surface is the main body. Lower cylindrical body 13 fixed to the upper peripheral surface of 2 in a liquid-tight manner
And a lower end peripheral surface is fitted on the peripheral surface of the lower cylindrical body 13, and is rotatable around an axis via an annular rotating seal 18 and is secured to the lower cylindrical body 13 by retaining means 16. On the other hand, an upper cylindrical body 9 which is prevented from coming off in the axial direction, and an annular groove 10 on the inner peripheral surface.
The drainage connection pipe inserted from the tip is held in a liquid-tight manner through the movement seal 11, and the tip of the drainage connection pipe is connected to the upper cylinder. At least one inflow pipe portion 8 integrally protruded from the outer periphery of the upper cylindrical body 9 so as to be slidably inserted into and out of the body 9.

In a preferred embodiment of the present invention, the lower cylindrical body 13 has an annular bottom portion 22 whose lower end is removably seated on the inner periphery of the lower end edge thereof.
The trap body 20 includes a trap body 20 integrally formed with the body 3, and a bowl-shaped body 21 whose opening side is inserted between the pair of cylindrical portions 23, 24 of the trap body 20. In addition, the present invention also relates to a mass body 2 having a horizontal drainage pipe 6 at the lower part and a lower end peripheral surface fitted on the peripheral surface of the main body 2, and an axial line through an annular rotating seal 18. The upper cylindrical body 9 which is rotatable around and is prevented from coming off in the axial direction with respect to the main body 2 by the retaining means 16 and the annular groove 1 on the inner peripheral surface.
0, the drainage connection pipe inserted from the tip is held in a liquid-tight manner through the migration seal 11, and the tip of the drainage connection pipe is connected to the upper end. A small drainage mass having at least one inflow pipe portion 8 integrally protruded from the outer periphery of the upper cylindrical body 9 so as to slide into and out of the cylindrical body 9 so as to be freely inserted and removed. .

[0006]

In order to connect a drainage branch pipe to the small drainage mass of the present invention, first, a lower cylinder 13 is liquid-tightly fixed to an upper portion of the mass body 2 connected to the drainage main pipe. Then, the upper cylinder 9 is rotated in one direction, for example, 60 to 90 degrees, and the inflow pipe portion 8 of the upper cylinder 9 is positioned in the main pipe direction. Next, the short pipe 4 is inserted from one end into the inflow pipe portion 8 integrally projecting from the upper cylindrical body 9, and the distal end portion is slid extra into the upper cylindrical body. Next, the short pipe 4 is extended from the inflow pipe section 8 by rotating the upper tubular body 9 in the branch pipe direction, and the short pipe 4 and the drainage branch pipe 30 are connected via the socket 31. At this time, by applying an adhesive in advance to the outer periphery of the distal end portion of the short pipe 4 and the drainage branch pipe 30, they are sealed in a liquid-tight manner. Further, according to the connector for the small drainage mass of the present invention, the drainage branch pipe can be easily connected to the drainage main pipe. Therefore, there is no problem in the conventional small drainage mass described above. At the same time, it can be installed in a narrow place near the site boundary. Further, in another embodiment of the present invention, the mass main body 2 and the lower cylindrical body 13 are integrated. Thereby, the number of parts is small, the manufacturing is easy, and all the effects and advantages of the first invention are provided.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
FIG. 1 is a sectional view of a small drainage mass having a connector according to the present invention, and FIG. 2 is an enlarged view of a portion A thereof. The connecting body of the small drainage mass 1 is composed of a lower cylindrical body 13 and an upper cylindrical body 9 made of a synthetic resin such as polyvinyl chloride which is easily bonded. The mass body 2 is also made of polyvinyl chloride, and the mass body 2 has a cylindrical side wall that expands upward,
A vertical opening 5 is provided at the top, and a pair of drain pipes 6 for connecting to a drain main pipe are provided horizontally on a lower diagonal line. When the mass main body 2 is installed at the corner of the drain main pipe, a drain mass main body 2 having a pair of drain pipes 6 provided at right angles is used.

The upper cylindrical body 9 is provided with a horizontal inflow pipe portion 8 in the middle of the cylindrical outer periphery, and connection openings 27 are slightly enlarged at both upper and lower ends. An annular groove 10 whose inner wall is annularly enlarged is provided in the vicinity of the tip of the inflow pipe portion 8,
An annular axial movement seal 11 is housed along the inner peripheral surface of the annular groove 10. On the inner peripheral surface of the seal 11 for axial movement, a small annular projection 12 is further provided integrally with the upper cylindrical body 9 inclined toward the axis.
The lower cylindrical body 13 joined to the opening 5 of the mass main body 2 by bonding or the like is rotatably fitted to the inner periphery of the connection opening 27 of the upper cylindrical body 9. Further, an annular inner flange portion 14 is provided at the bottom of the lower cylindrical body 13 and extends at a right angle from the peripheral edge toward the center.

As shown in FIG. 2, the upper cylinder 9 and the lower cylinder 13
A concave groove 15 having a horizontal bottom surface on the inner peripheral portion of the upper cylindrical body 9 and a slanted peripheral surface and a triangular cross-section, and a lower horizontal surface on the outer peripheral portion of the lower cylindrical body 13. The retaining means 16 is constituted by an annular ridge having a slanted peripheral surface and a triangular cross section. That is, the upper cylinder 9 is rotatably connected to the lower cylinder 13 by fitting the two. An annular concave groove 17 having a slightly U-shaped cross section is further provided on the outer peripheral portion of the lower cylindrical body 13, and a rotating seal 18 is mounted in the concave groove 17. The upper cylinder 9 is liquid-tightly sealed to the lower cylinder 13 by the rotating seal 18.

A trap 19 can be mounted inside the lower cylinder 13. The trap 19 includes a trap body 20 and a bowl-shaped body 21. Trap body 2
Reference numeral 0 denotes a double cylindrical structure integrally having an annular bottom portion 22 and a pair of concentric cylindrical portions 23, 24 raised on both edges thereof, and extending toward the center at the top of the cylindrical portion 23 on the inner side. A plurality of engaging pieces 25 are provided. The bowl-shaped body 21 has a cylindrical peripheral wall portion and a mountain-shaped top portion, and an annular fitting piece 26 for fitting to the hooking piece 25 of the trap body 20 protrudes from the bottom surface of the top portion. On the other hand, the lower end of the connecting cylinder 33 is inserted and adhered to the upper end connection opening 27 of the upper cylinder 9, so that the upper end of the connecting cylinder 33 is exposed to the ground, and the lid 28 can be detached therefrom. ing.

The short pipe 4 is formed by cutting an ordinary drain pipe into an appropriate length, and one end of the short pipe 4 is adhesively fixed to the drain branch pipe 30 via the socket 31. The other end of the short pipe 4 is provided with a protrusion 1 of an axial movement seal 11 provided in the inflow pipe 8.
The two are tightly sealed (yarn structure) and both are sealed in a liquid-tight manner. Next, a procedure for connecting the drainage main pipe to the drainage main pipe using the small drainage mass will be described with reference to FIG. 3. First, a digging groove is dug in a place where the drainage main pipe is buried, and each drainage pipe is connected. The mass main body 2 is arranged at the position, and a drainage main pipe (not shown) made of synthetic resin such as polyvinyl chloride is arranged at the excavation groove. Then, if necessary, the excavation groove excluding the portion where the mass main body 2 is arranged is filled back. Next, the discharge pipe 6 of the mass body 2
And an end of a drain main pipe (not shown) are adhered and fixed in a liquid-tight manner.
Next, the outer peripheral surface of the lower cylindrical body 13 is fitted into the opening 5 of the mass body 2, and the fitted portion is liquid-tightly bonded. The upper tubular body 9 is fitted to the lower tubular body 13 in advance in a factory or the like via a rotating seal 18 in a liquid-tight manner and rotatably in the circumferential direction. Then, it is fixed to the lower cylinder 13 by the retaining means 16.

Next, the upper cylinder 9 is rotated in the direction of the arrow in FIG.
The inflow pipe section 8 is set to the discharge pipe section 6 side and separated from the drainage branch pipe 30. A drain main pipe is connected in the axial direction of the discharge pipe section 6 and is generally arranged in parallel with the building.
The inlet pipe section 8 is also oriented parallel to the building. Next, the short pipe 4 is sufficiently inserted into the inflow pipe portion 8 so that one end thereof reaches the inside of the upper cylindrical body 9. At this time, since the axis of the short pipe is positioned parallel to the building, insertion is extremely easy. That is, even if the fence adjacent to the building or the adjacent house is extremely close,
The short tube can be inserted. An adhesive is applied to the outer periphery of the connection end of the drainage branch pipe and the short pipe.

Next, the inflow pipe section 8 is rotated toward the drainage branch pipe 30 so that the respective axes of the inflow pipe section 8 and the short pipe 4 are aligned with each other. 4
And the other end of the drainage branch pipe 30 are fitted and fixed. This socket is formed in a stepped manner in which both ends are expanded by the thickness of the insertion tube. Next, as shown in FIG. 1, the lower portion of the connecting cylinder 33 is fitted into the connection opening 27 of the upper cylinder 9, and the fitted portion is adhesively fixed. Then, the trap 19 is seated on the inner flange portion 14 of the lower cylinder 13, the soil is backfilled to the level L, and the cover 28 is attached to complete the installation work. Next, when clogging or the like occurs inside the mass, the lid 28 may be removed, and the entire trap 19 may be lifted upward and removed. That is, FIG.
In this state, the bowl-shaped body 21 and the trap body 20 can be removed together. This makes it possible to completely remove the obstacle inside the drainage mass and easily inspect and maintain the inside. In addition, inspection, repair, and maintenance of the inside of the discharge pipe portion 6 can be performed through the mass.

FIG. 4 shows an embodiment of the present invention. The small drainage mass of the present invention is obtained by integrating the lower cylindrical body and the mass main body of the first invention. That is, the upper end of the mass body 2 is fitted into the lower end opening of the upper cylindrical body 9, both are prevented from coming off by the retaining means 16, and are provided in a liquid-tight and rotatable manner by the rotating seal 18. ing. Therefore, the installation of the small drainage mass of the present invention can omit the work of bonding the lower cylinder and the mass main body in the installation work of the first invention.

[0015]

The present invention has the above-mentioned structure,
The following effects are obtained. (1) When connecting the drainage branch pipe to the small drainage mass connected to the drainage main pipe, the upper cylindrical body 9 is rotated with respect to the lower cylindrical body 13 so that the inflow pipe part has a margin such as a direction perpendicular to the branch pipe. A short pipe can be connected by rotating into space. Then, with the short pipe fully inserted into the upper tubular body 9, the inflow pipe is rotated again to return the pipe to the drain pipe so that the drain pipe can be connected to the short pipe. There is no need to bend the mains. (2) There is no need to bend the drain main pipe, so there is no need to increase the excavation width for burying the drain main pipe. (3) Since each drainage branch pipe is connected without bending the drainage main pipe, drainage main pipes other than those connecting portions can be backfilled at an early stage. (4) Since each drainage branch pipe is connected without bending the drainage main pipe, the connection order of the drainage branch pipe to the drainage main pipe can be arbitrarily set, and the degree of freedom in construction is large.

(5) It can be installed in a narrow place such as a fence at a site boundary. (6) With the mass main body 2 fixed, the direction of the inflow pipe portion 8 of the upper cylindrical body 9 can be easily adjusted to the installation direction of the drainage branch pipe 30. Thereby, the connection work between the drainage branch pipe and the mass becomes extremely easy. (7) Next, the invention according to claim 2 provides the trap body 2
Since 0 is formed by the double cylindrical portions 23 and 24 having the annular bottom portion 22, it can be removed. That is, unlike the conventional bowl trap of this type, the bowl-shaped body 21
In addition, the trap body 20 can be detached, and maintenance and inspection of the drainage mass becomes extremely easy. This is because the trap body 20 has the above-described structure, and also has a structure that is detachably seated on the inner circumference of the lower end edge of the lower cylindrical body 13. (8) The third aspect of the present invention is the same as the first aspect of the invention, except that the mass main body 2 and the upper cylindrical body 9 are integrated with each other. Installation work is easy. Further, the lower portion of the mass body can be made lower by the above integration, and the height of the inflow pipe portion 8 can be made lower accordingly. Thereby, the gradient of the drainage pipe can be easily taken.

[Brief description of the drawings]

FIG. 1 is a sectional view of a small drainage mass of the present invention.

FIG. 2 is an enlarged view of a portion A in FIGS. 1 and 4;

FIG. 3 is an explanatory view showing a procedure for connecting a drainage branch pipe to a drainage main pipe using the small drainage mass of FIG. 1;

FIG. 4 is a sectional view of another small drainage mass of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Small drainage mass 2 Mass main body 4 Short pipe 5 Opening 6 Discharge pipe part 8 Inflow pipe part 9 Upper cylinder body 10 Annular groove 11 Seal for axial movement 12 Projection 13 Lower cylinder body 14 Inner flange part 15 Concave groove 16 Retaining means DESCRIPTION OF SYMBOLS 17 Concave groove 18 Rotation seal 19 Trap 20 Trap main body 21 Bowl-shaped body 22 Annular bottom 23 Tube part 24 Tube part 25 Hook piece 26 Fitting piece 27 Connection opening 28 Lid body 30 Drainage branch pipe 31 Socket 32 Connection part 33 Connection Cylindrical body

Claims (3)

(57) [Claims] 1. A connecting body connected to a mass body 2 having a horizontal drainage pipe 6 at a lower part thereof, wherein a lower peripheral part is fixed to an upper peripheral surface of the main body 2 in a liquid-tight manner. 13 and a lower end peripheral surface thereof is fitted on the peripheral surface of the lower cylindrical body 13, and is rotatable around an axis via an annular rotating seal 18 and is attached to the lower cylindrical body 13 by a retaining means 16. An upper cylindrical body 9 which is prevented from coming off in the axial direction, and a seal 11 for axial movement to be fitted into an annular groove 10 on the inner peripheral surface, and a drainage connection pipe inserted from the tip is the seal for movement. 11 and is integrally formed on the outer periphery of the upper cylinder 9 so that the distal end of the drain connection pipe slides into the upper cylinder 9 so as to be freely inserted and removed. A connection body for a small drainage mass, comprising: at least one inflow pipe portion 8 protrudingly provided. 2. The lower cylindrical body 13 according to claim 1, further comprising an annular bottom portion 22 having a lower end detachably seated on an inner periphery of a lower end edge portion of the lower cylindrical body 13, and a pair of cylindrical portions 23, 24 integrally formed on both peripheral edges of the bottom portion. A connector for a small drainage mass, comprising: a trap body 20 formed; and a bowl-shaped body 21 having an opening inserted between the pair of cylindrical portions 23, 24 of the trap body 20. 3. A mass body 2 having a horizontal drain pipe 6 at a lower portion thereof and a lower end peripheral surface fitted on the peripheral surface of the main body 2,
The upper cylindrical body 9 which is rotatable around an axis via an annular rotating seal 18 and which is axially retained with respect to the main body 2 by the retaining means 16 and the annular groove 10 on the inner peripheral surface. A drainage connection pipe inserted from the distal end is fitted in an axial direction moving seal 11 to be held in a liquid-tight manner through the migration seal 11, and the distal end of the drainage connection pipe is connected to the upper cylindrical body. And at least one inflow pipe portion 8 integrally protruded from the outer periphery of the upper cylindrical body 9 so as to slide into and out of the interior of the upper cylindrical body 9.