JP6822631B2 - Drainage pipe and construction method of drainage pipe - Google Patents

Description

The present invention relates to a drainage pipe buried under the floor in order to treat wastewater generated on the floor surface.

The drainage pipe is composed of a lower part of the main body and an upper part of the main body, and when the construction is completed, the lower part of the main body is connected to a pipe further downstream than the drainage pipe. The upper part of the main body is configured so that the position can be adjusted with respect to the lower part of the main body, and when the construction is completed, the upper end of the upper part of the main body is arranged so as to be exposed on the floor surface flush with the floor surface. After the construction is completed, the drainage on the floor surface flows in from the opening on the upper part of the main body that is exposed flush with the floor surface and is discharged to the sewage side.

The procedure for installing the drainage pipe is as follows.
First, the lower part of the main body is connected to the pipe on the further downstream side provided on the floor. Next, insert the upper part of the main body into the lower part of the main body, adjust the position so that the upper end of the upper part of the main body is flush with the floor surface, and then drive the screw inward from the outer circumference of the lower part of the main body to make the upper part of the main body the main body. Temporarily hold against the bottom. Finally, concrete is poured while the upper part of the main body is held to form the floor surface.

Here, regarding the above-mentioned temporary holding method, in the case of the conventional drainage pipe, there are the following problems.
Since the conventional drainage pipe is made of cast metal, it has strength and can be temporarily held by driving a screw. However, due to problems such as manufacturing cost, the drainage pipe formed of resin has been used in recent years. Is the mainstream. However, when the holding by the screw is used for the resin drainage pipe, the drainage pipe may be deformed or damaged by the driven screw.
Further, in the conventional drainage pipe, a screw must be attached every time the height position of the upper part of the main body is changed, which makes the work complicated. In addition, each time a screw is attached, the upper part of the main body is more likely to be damaged by the screw.

Japanese Unexamined Patent Publication No. 2006-194049

In view of the above problems, it is an object of the present invention to provide a drainage pipe buried under the floor, which can be easily temporarily held at the upper part of the main body even if it is made of resin or the like.

The present invention according to claim 1 for solving the above problems is a drainage pipe buried under the floor.
The lower part of the main body to which the downstream piping is connected,
The upper part of the main body, which can be adjusted in position with respect to the lower part of the main body,
It consists of a holding part that temporarily holds the position of the upper part of the main body with respect to the lower part of the main body.
The holding portion is a drainage pipe that is fitted to an end portion of the lower portion of the main body and is characterized in that the position of the upper portion of the main body is held by abutting with the periphery of the upper portion of the main body.

The above "surroundings" do not necessarily cover the entire circumference, but include a part of the circumference. Further, the "surroundings" include the inner circumference.

The drainage pipe according to claim 1, wherein the holding portion abuts on the entire circumference of the upper portion of the main body and the entire circumference of the end portion of the lower portion of the main body .

The present invention according to claim 3 is a drainage pipe buried under the floor.
The lower part of the main body to which the downstream piping is connected,
The upper part of the main body, which can be adjusted in position with respect to the lower part of the main body,
It consists of a holding part that temporarily holds the position of the upper part of the main body with respect to the lower part of the main body.
The holding portion holds the position of the upper part of the main body by contacting the periphery of either the upper part or the lower part of the main body and the other end portion .
The holding portion is composed of a belt portion and a fixing portion, and is characterized in that the position is fixed by friction due to tightening by inserting and fixing the end portion of the belt portion through the fixing portion. It is a pipe.

The present invention according to claim 4 is a drainage pipe buried under the floor.
The lower part of the main body to which the downstream piping is connected,
The upper part of the main body, which can be adjusted in position with respect to the lower part of the main body,
It consists of a holding part that temporarily holds the position of the upper part of the main body.
The holding portion includes an engaged portion which is a plurality of recesses formed in one of the upper portion of the main body and the lower portion of the main body , and an engaged portion.
Formed on the other, of the engaged portion is a drain pipe, characterized in that it consists of the engaging portion is a claw portion engaged with the engaged portion at an arbitrary height position.

The present invention according to claim 5 is a method for constructing a drainage pipe using the drainage pipe according to any one of claims 1 to 4.
Connect the lower part of the main body to the piping on the downstream side and place it in place,
After temporarily holding the position of the upper part of the main body with respect to the lower part of the main body by the holding member,
This is a drainage pipe construction method characterized by burying the lower part of the main body and the upper part of the main body to form a floor surface.

According to the inventions described in the above claims, it is not necessary to use screws or the like to temporarily hold the height position of the upper part of the main body as in the conventional drainage pipe. Further, even if the position of the upper part of the main body is changed, there is no possibility that the upper part of the main body or the like is damaged.

(A) Cross-sectional view (b) FIG. 1 (a) is an enlarged view of part A showing the present invention. It is an exploded sectional view of this invention. It is a reference cross-sectional view which shows the construction state. (A) Cross-sectional view (b) FIG. 4 (a) is an enlarged view of part A showing a second embodiment. It is (a) sectional view (b) side view which shows the upper part of the main body. (A) Cross-sectional view (b) FIG. 6 (a) is an enlarged view of part A showing a third embodiment. (A) Cross-sectional view (b) FIG. 7 (a) is an enlarged view of part A showing a fourth embodiment. It is sectional drawing which shows the 5th Embodiment.

Hereinafter, the drainage pipe of the present invention will be described with reference to the drawings. It should be noted that the description described below is for facilitating the understanding of the embodiment, and the invention is not limited and understood by this.

Hereinafter, the first embodiment of the present invention will be described with reference to FIGS. 1 to 3.

As shown in FIG. 1, the drainage pipe 1 of the present invention is a drainage trap that forms a water seal inside, and is composed of a main body lower part 2, a main body upper part 10, and a holding portion 15. Further, when the construction is completed, the holding portion 15 is fitted (mounted) on the upper peripheral edge of the lower portion 2 of the main body, and the upper portion 10 of the main body is inserted from above. Further, the lower portion 2 of the main body is connected to a pipe on the downstream side at the lower end.

The lower part 2 of the main body is made of a hard resin material such as polypropylene, and as shown in FIG. 2, it is a cylindrical bowl-shaped body having an opening at the upper part and a bottom part 3 at the lower end, and an opening at the center of the bottom part 3. 4 is formed, and a water bottle 8 and a bowl 9 are provided inside. Further, the lower portion 2 of the main body has a step portion 5 formed inside, and a collar portion 6 extends from the outer surface. Further, a holding portion 15 is fitted to the upper end of the lower portion 2 of the main body.
The step portion 5 projects inward from the outer surface of the lower portion 2 of the main body, and its inner diameter is smaller than that of the lower end of the upper portion 10 of the main body, which will be described later. Therefore, the step portion 5 sets the lower limit of the height position of the main body upper portion 10 by abutting the lower end of the main body upper portion 10 when the main body upper portion 10 is inserted longer than the predetermined length with respect to the main body lower portion 2. doing.
The collar portion 6 is a water leakage receiver that guides drainage that has entered under the floor into the lower part 2 of the main body, and as shown in FIG. 3, a waterproof layer S is placed above when the construction is completed. Further, a hole 7 is formed at the base of the collar portion 6, and the drainage flowing from the waterproof layer S flows into the lower part 2 of the main body through the hole 7.
Even if the upper part 10 of the main body, which will be described later, is lowered to a position lower than the hole 7 during construction, there is a gap between the upper part 2 of the main body and the lower part 10 of the main body, and the watertightness is not closed. The drainage collected on the flange portion 6 can flow into the lower part 2 of the main body through the hole 7.
The water bottle 8 is a tubular member that is inserted into the opening 4 and is in close contact with the lower portion 2 of the main body, and a bowl 9 is placed above it.
The bowl 9 is placed on the water bottle 8 with the lower part open, and forms a drainage flow path in the lower part 2 of the main body together with the water bottle 8.

The upper portion 10 of the main body is composed of a tubular portion 11, a flange portion 12, and a perforated plate 13, and as shown in FIG. 2, the upper end of the flange portion 12 is positioned so as to be flush with the floor surface 100 when the construction is completed. It is arranged, and its upper surface is exposed from the floor surface 100.
The tubular portion 11 is made of a hard resin material such as polypropylene, and has a tubular body having an outer diameter substantially the same as the inner diameter of the lower portion 2 of the main body, and a male screw is formed on the outer circumference of the upper end and the lower end thereof. Is inserted inside the lower part 2 of the main body. Further, a holding portion 15 placed on the upper end of the lower portion 2 of the main body is in contact with the outer circumference of the tubular portion 11 over the entire circumference.
A female screw is formed at the lower end of the flange portion 12, and the flange portion 12 is screwed with the tubular portion 11. Further, a perforated plate 13 is placed on the upper end of the flange portion 12. The perforated plate 13 has a circular shape in a plan view and has a dust collecting portion formed in a net shape.

As shown in FIG. 1B, the holding portion 15 is a circular and annular packing in a plan view made of an elastic material such as silicon, and the lower surface thereof is fitted to the upper end of the lower portion 2 of the main body. That is, the holding portion 15 is placed and fixed on the upper end of the lower portion 2 of the main body. In the completed construction state, the lower surface of the holding portion 15 is in contact with the lower portion 2 of the main body, and the inner side surface thereof is in contact with the outer surface of the upper portion 10 of the main body.

The drainage flow path in the drainage pipe is formed by the inner side surfaces of the main body upper portion 10 and the main body lower portion 2, the water bottle 8 and the bowl 9, and is bent with the bottom portion 3 as the bottom surface, and is one of the drainage flowing into the inside. The part can be stored. That is, the drainage pipe 1 in the present embodiment is a drainage trap that prevents the backflow of odors and pests from the downstream side by filling a part of the drainage flow path with the stored drainage.

Next, the construction method of the drainage pipe 1 according to the first embodiment will be described.

First, the holding portion 15 is fitted around the upper end of the lower portion 2 of the main body. At this time, the holding portion 15 is placed on the lower portion 2 of the main body and is in a state of being in watertight contact with the lower portion 2 of the main body.
Next, the lower part 2 of the main body is attached to the pipe 300 on the downstream side that is raised from under the floor.
Next, the upper body 10 is inserted into the lower body 2. At this time, the holding portion 15 comes into contact with the outer periphery of the main body upper portion 10 and friction is generated. However, by pushing the main body upper portion 10 from above against the friction, the operator can set an arbitrary height position with respect to the main body lower portion 2. The upper part 10 of the main body can be arranged in. Further, the upper portion 10 of the main body arranged at an arbitrary height position is temporarily held at the height position by the friction of the holding portion 15.
Finally, concrete 200 is cast so that the opening of the upper part 10 of the main body is exposed flushly to form the floor surface 100. At this time, the lower part 2 of the main body and the upper part 10 of the main body are completely fixed by the cast concrete 200.

Next, the second embodiment of the present invention will be described with reference to FIGS. 4 to 5. In the second embodiment described below, only the holding portion 15 is different from the first embodiment, so only the description regarding the difference is made, and the other points are the same as those in the first embodiment. Reference numerals will be given and the description thereof will be omitted.

The holding portion 15 according to the second embodiment is a belt-shaped member, and as shown in FIG. 5B, is composed of a belt portion 17 and a fixing portion 18, and covers the entire circumference of the main body upper portion 10 (cylinder portion 11). It is wrapped around. The belt portion 17 is a band-shaped portion that is wound around the upper portion 10 of the main body, and its length is longer than the outer circumference of the tubular portion 11. The fixing portion 18 is formed at the end portion of the belt portion 17, and the other end of the belt portion 17 can be inserted. Here, the belt portion 17 is formed with a plurality of ridges (not shown) extending in the lateral direction on the side surface, and the belt portion 17 can be inserted into the fixed portion 18 by the ridges. It cannot be pulled out.

Next, the construction method of the drainage pipe 1 according to the second embodiment will be described.

First, the holding portion 15 is wound around the outer circumference of the upper portion 10 of the main body. At this time, the holding portion 15 becomes an annular tightening member, is brought into contact with the outer periphery of the upper portion 10 of the main body, and its position is fixed by friction due to tightening.
Next, the lower part 2 of the main body is attached to the pipe 300 on the downstream side that is raised from under the floor.
Next, the upper body 10 is inserted into the lower body 2. At this time, since the upper portion 10 of the main body has a diameter larger than the inner diameter of the lower portion 2 of the main body at the portion where the holding portion 15 is wound, the lower surface of the holding portion 15 comes into contact with the upper edge of the lower portion 2 of the main body, and the upper portion 10 of the main body ( And the holding portion 15) are placed on the lower part 2 of the main body.
Finally, concrete 200 is cast so that the opening of the upper part 10 of the main body is exposed flushly to form the floor surface 100. At this time, the lower part 2 of the main body and the upper part 10 of the main body are completely fixed by the cast concrete 200.

At the time of the above construction, the operator can arrange the main body upper portion 10 at an arbitrary height position with respect to the main body lower portion 2 by appropriately changing the height position of the holding portion 15 wound around the main body upper portion 10. It is a thing. That is, in the present embodiment, the height position of the upper body 10 with respect to the lower body 2 is temporarily held by tightening the holding portion 15.

The first embodiment and the second embodiment of the present invention are as described above, but the present invention is not limited to the shapes of the above-described embodiments, and various shape changes may be made without departing from the gist of the invention. It's a good one. For example, in the first embodiment and the second embodiment, the holding portion 15 is attached over the entire circumference of the main body upper portion 10, and it is possible to hold the main body upper portion 10 without tilting. The holding portion 15 may be attached only to the portion. Further, in the first embodiment, the holding portion 15 may be attached to the lower end of the main body upper portion 10 so as to be in contact with the lower end of the main body upper portion 10 and the inner circumference of the main body lower portion 2.

Further, as in the third embodiment shown in FIG. 6, the holding portion 15 may be composed of the engaging portion 20 and the engaged portion 21. The engaging portion 20 is a claw portion formed at the upper end of the lower portion 2 of the main body, the engaged portion 21 is a plurality of recesses formed on the outer surface of the upper portion 10 of the main body, and the engaging portion 20 is an arbitrary engaged portion. The joint can be selected and engaged.
In the third embodiment, when the upper body 10 is inserted into the lower body 2, the engaging portion 20 engages with the engaged portion 21 to temporarily hold the height position of the upper body 10. it can. Further, since a plurality of engaged portions 21 are formed on the outer surface of the main body upper portion 10 as described above, the operator holds the main body upper portion 10 until the engaging portion 20 engages with an arbitrary engaged portion 21. By pushing in, the height position of the main body upper portion 10 with respect to the main body lower portion 2 can be adjusted.
Further, the engaging portion 20 may be replaced with a C-shaped ring from the claw portion. In this case, the operator fits the C-shaped ring into an arbitrary engaged portion 21, and the C-shaped ring is placed on the lower portion 2 of the main body to temporarily set the height position of the upper portion 10 of the main body. It is possible to hold it in.

Further, as in the fourth embodiment shown in FIG. 7, the holding portion 15 is screwed with a female screw portion formed at the upper end of the inner circumference of the lower portion 2 of the main body and a male screw portion formed at the lower end of the outer circumference of the upper portion 10 of the main body. It may be composed of a part 25. In the fourth embodiment, the height position of the main body upper portion 15 with respect to the main body lower portion 2 can be adjusted by screwing the main body lower portion 2 and the main body upper portion 15. By adjusting the stress required for screwing by adjusting the clearance between the female screw portion and the male screw portion, the height position of the upper portion 15 of the main body can be temporarily held at the time of construction.

Further, in each of the above embodiments, the position of the upper body 10 is adjusted by inserting the upper body 10 into the lower body 2, but as in the fifth embodiment shown in FIG. 8, the lower body 2 is used. May be inserted into the upper part 10 of the main body. Also in this case, instead of the holding portion 15 made of a soft member such as silicon, the holding portion 15 made of a belt-shaped member described in the second embodiment and the holding portion 15 described in other embodiments are adopted. You can do it.

In the present invention, the upper body 10 can be temporarily held with respect to the lower body 2 by friction, tightening, engagement, etc. by the holding portion 15, so that the height of the upper body 10 is as high as that of the conventional drainage pipe. It is not necessary to use screws or the like to temporarily hold the position. Therefore, even if the drainage pipe is made of resin, it is possible to easily temporarily hold the height position of the upper part 10 of the main body. Further, when the height position is temporarily held, the operator only needs to insert the main body upper portion 10 into the main body lower portion 2, so that the height can be easily adjusted. When the construction is completed, the lower portion 2 of the main body and the upper portion 10 of the main body are completely fixed by the cast concrete 200, so that the positions of the lower portion 2 of the main body and the upper portion 10 of the main body do not shift after the floor surface 100 is formed.

1 Drainage pipe 2 Lower part of main body 3 Bottom part 4 Opening 5 Step part 6 Flange part 7 Hole 8 Water sealing cylinder 9 Bowl 10 Main body upper part 11 Cylinder part 12 Flange part 13 Perforated plate 15 Holding part 17 Belt part 18 Fixing part 20 Engaging part 21 Cover Engagement part 25 Screw part 100 Floor surface 200 Concrete 300 Piping S Waterproof layer

Claims (5)

A drainage pipe buried under the floor
The lower part of the main body to which the downstream piping is connected,
The upper part of the main body, which can be adjusted in position with respect to the lower part of the main body,
It consists of a holding part that temporarily holds the position of the upper part of the main body with respect to the lower part of the main body.
The drainage pipe is characterized in that the holding portion is fitted to an end portion of the lower portion of the main body and abuts on the periphery of the upper portion of the main body to hold the position of the upper portion of the main body. The drainage pipe according to claim 1, wherein the holding portion is in contact with the entire circumference of the upper portion of the main body and the entire circumference of the end portion of the lower portion of the main body . A drainage pipe buried under the floor
The lower part of the main body to which the downstream piping is connected,
The upper part of the main body, which can be adjusted in position with respect to the lower part of the main body,
It consists of a holding part that temporarily holds the position of the upper part of the main body with respect to the lower part of the main body.
The holding portion holds the position of the upper part of the main body by contacting the periphery of either the upper part or the lower part of the main body and the other end portion .
The holding portion is composed of a belt portion and a fixing portion, and is characterized in that the position is fixed by friction due to tightening by inserting and fixing the end portion of the belt portion through the fixing portion. Piping. A drainage pipe buried under the floor
The lower part of the main body to which the downstream piping is connected,
The upper part of the main body, which can be adjusted in position with respect to the lower part of the main body,
It consists of a holding part that temporarily holds the position of the upper part of the main body.
The holding portion includes an engaged portion which is a plurality of recesses formed in one of the upper portion of the main body and the lower portion of the main body , and an engaged portion.
Formed on the other, of the engaged portion, the drainage pipes, characterized in that it consists of the engaging portion is a claw portion engaged with the engaged portion at an arbitrary height position. A method for constructing a drainage pipe using the drainage pipe according to any one of claims 1 to 4.
Connect the lower part of the main body to the piping on the downstream side and place it in place,
After temporarily holding the position of the upper part of the main body with respect to the lower part of the main body by the holding member,
A method of constructing a drainage pipe, which comprises burying the lower part of the main body and the upper part of the main body to form a floor surface.

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