JPH08246530A - Connecting structure between drain ditch and trap - Google Patents

Abstract

PURPOSE: To match the installation height of a drain ditch and finishing height of floor concrete in its circumference at the same level in the case of adapting a short-term method. CONSTITUTION: A drain part 1a of a drain ditch 1 is externally fitted around the top outer circumferential face of a trap 2 via a sealing member 10. The trap 2 is constituted of an inner cylinder 3 having an inlet part 4 in its top end and an outer cylinder 7 for connecting an outlet pipe 8 in the bottom end to a drain pipe and a bell trap is formed by covering the top end opening 8a of the outlet pipe 8 with the lower half part of the inner cylinder 3. Sealing members such as O rings 10, 10, etc., are interposed between the drain part 1a of the drain ditch 1 and the top part of the trap 2 so that the drain ditch 1 is moved in the perpendicular direction of the trap 2 and any possibility of losing watertight performance between them is eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for connecting a drainage channel buried in a floor of a bathroom or the like to a drainage pipe via a trap. Technology that can be matched to.

[0002]

2. Description of the Related Art When constructing a bathroom or the like, a procedure for attaching a drain to a drain pipe provided on the floor via a trap,
This will be described with reference to FIG. Normally, as shown in FIG. 1A, the trap 2 is attached to the drainage pipe 20 provided on the floor slab S, the drainage groove 1 is connected to the trap 2, and then the soil concrete C is placed on the floor slab S. And integrate the whole.

In the above construction procedure, although the finishing is sure, the construction period is relatively long because a sufficient standing time is required after placing the soil concrete C. Therefore, in order to shorten the construction time, the following construction procedure is also adopted. As shown in FIG. 4 (B), a weir plate 30 is provided around the drainage pipe 20 of the floor slab S, and the surrounding soil concrete C is placed in advance, and the drainage pipe 20 is parallel to this. By installing the trap 2 and drainage 1,
We are working to shorten the construction period. Then, after that, concrete D is placed in the lower space of the drainage groove 1.

[0004]

Compared to the former construction method shown in FIG. 4 (A), the latter construction method shown in FIG. 4 (B) is
Although there is an advantage that the construction period can be short, there is a problem that the installation height of the drainage groove 1 and the finishing height of the soil concrete C may not match. This is because the installation of the drainage ditch 1 and the placement of the soil concrete C are performed separately. Moreover, since the conventional connection between the drain groove 1 and the trap 2 is made by screw-fitting the both, it is substantially impossible to adjust the height of the drain groove 1 later.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned problems of the prior art, the present invention is a connection structure for a drainage groove and a trap, which can cope with a short-term construction method and can surely make finished heights uniform. Is provided. The feature of the present invention is that the drainage part of the drainage groove is fitted to the inflow part of the trap so as to be movable in a substantially vertical direction, and a seal member is provided between the inflow part of the trap and the drainage part of the drainage groove. It is in the point of interposition.

[0006]

According to the present invention, since it is possible to move the drain groove and the trap in the vertical direction at their connecting portions, the drain groove and the trap can be moved in the vertical direction in accordance with the finishing height of the surrounding soil concrete that has been placed earlier. Height can be adjusted. Therefore, even if the short-term construction method is adopted, a beautiful finish can be ensured.

[0007]

【Example】

[First Embodiment] The embodiment shown in FIG. 1 is characterized by a structure in which the drainage portion 1a of the drainage groove 1 is fitted onto the outer peripheral surface of the upper portion of the trap 2 via a seal member 10. The trap 2 is composed of an inner cylinder 3 having an inflow portion 4 at the upper end, and an outer cylinder 7 into which the inner cylinder 3 is fitted and an outflow pipe 8 at the lower end is connected to a drain pipe.

The inner cylinder 3 is divided into upper and lower parts by a cover plate part 5 formed in the middle of the inner part, and drainage is made to flow out from the peripheral wall opening 6 in the upper half part. The outer cylinder 7 has an outflow pipe 8 standing upright so as to penetrate through the center of the bottom, and the upper opening 8a of the outflow pipe 8 is covered by the lower half part of the inner cylinder 3 so that the space between the two is increased. A belt wrap is formed on. Although not shown, the drainage portion 1a in the drainage groove 1
It is desirable to attach a mark indicating the lower limit position of the trap 2 to the inner peripheral surface of the.

The upper portion of the trap 2 is fitted into the drainage portion 1a of the drainage groove 1 and the O-ring 1 is interposed between the two.
Sealing members such as 0 and 10 are interposed. With such a configuration, the drainage groove 1 can be moved in the vertical direction with respect to the trap 2 as necessary without impairing the water tightness between the two.

Further, in this embodiment, since the trap 2 can be pulled out from the upper surface side of the drain groove 1, the drain groove 1
It has an advantage that the trap 2 can be exchanged from the indoor side without removing the trap.

The inner cylinder 3 and the outer cylinder 7 of the trap 2
Are fixed by screw fitting, and packing 9 is attached to the joint portion. Therefore, as shown in FIG. 2B, the inner cylinder 3 and the outer cylinder 7 are manufactured so that the portions for sandwiching the packing 9 form tapered surfaces, whereby the inner cylinder 3 and the outer cylinder 7 are separated from each other. By tightening the packing 9, the packing 9 is bulged toward the inner peripheral surface of the drainage portion 1a of the drainage groove 1 and brought into close contact therewith, so that the sealing property can be further enhanced.

[Second Embodiment] In the embodiment of FIG. 2, the drain portion 1a of the drain groove 1 is fitted in the outer cylinder 7 of the trap 2, and the inflow portion 4 is provided at the upper end in the drain portion 1a. In addition, the inner cylinder 3 of the trap 2 is inserted. Similar to the first embodiment, an outflow pipe 8 is provided upright at the center of the bottom of the outer cylinder 7, and the inner cylinder 3 covers the upper end opening 8a of the outflow pipe 8 to form a belt wrap. .

In this embodiment, the O-ring 1 is provided between the outer peripheral surface of the drain portion 1a of the drain groove 1 and the inner peripheral surface of the trap outer cylinder 7.
A sealing member such as 0 is interposed, and the drain groove 1 is slidable in the vertical direction with respect to the trap outer cylinder 7 together with the trap inner cylinder 3.

[Third Embodiment] In the embodiment shown in FIG. 3, the drainage portion 1a of the drainage groove 1 is formed to be long in the vertical direction. With this configuration, with respect to the trap 2 fitted therein, It is possible to widen the range in which the drainage groove 1 can be moved in the vertical direction.

The trap 2 is similar to the above-mentioned embodiment in that it comprises an outer cylinder 7 having an outflow pipe 8 at the center of the bottom and an inner cylinder 3 which covers the upper part of the outer cylinder 7 and forms a belt wrap.

Fourth Embodiment In the embodiment shown in FIG. 4, the outflow pipe 8 of the outer cylinder 7 of the trap 2 is fixed to the drain pipe 20, and the inner cylinder 3 is placed on the outer cylinder 7 from above. The inner cylinder 3 and the drainage portion 1a of the drainage groove are screwed together while being fitted inside. A seal member 10 is interposed between the drainage portion 1 a of the drainage groove 1 and the outer cylinder 7 of the trap 2. Also,
Between the lower surface of the inner cylinder 3 of the trap 2 and the upper end of the outer cylinder 7,
The packing 11 is interposed. Then, the hair catcher 12 formed of a net body so as to cover the upper surface of the inflow portion 4 of the inner cylinder 3.
Is attached.

The inner cylinder 3 is divided into upper and lower parts by a cover plate part 5 formed in the middle of the inner part, the drainage is made to flow out from the peripheral wall opening 6 in the upper half part of the inner cylinder 3, and the outer cylinder. 7 The belt wrap is formed between the upper half of the inner pipe 3 and the upper half of the inner pipe 3 by covering the upper opening 8a of the outflow pipe 8 which is erected at the center of the bottom portion and fixed to the drain pipe 20. This is similar to the first embodiment.

The procedure for constructing the drain groove 1 and the trap 2 according to this embodiment is as follows. First of all, drainage 1
It arrange | positions so that the upper part of the drainage pipe 20 may be inserted in the drainage part 1a. Next, the outer cylinder 7 of the trap 2 is installed inside the drainage portion 1a of the drainage groove 1, and the outflow portion 8 is fixed to the drainage pipe 20 with an adhesive or the like. Next, the seal member 10 is fitted between the drain portion 1a and the outer cylinder 7. Subsequently, the inner cylinder 3 is inserted into the outer cylinder 7 from above, and the female screw formed on the inner surface of the drainage portion 1a of the drainage groove 1 and the male screw provided on the outer surface of the inner cylinder 3 are screwed together and appropriately tightened. The drainage portion 1a of the drainage groove 1 is in a state of being fitted over the outer cylinder 7 of the trap 2 fixed to the drainage pipe 20 via the seal member 10, so that the drainage groove 1 does not move in the vertical direction. It is possible. However, the lower limit is determined by the position where the lower surface of the inner cylinder 3 contacts the upper end of the outer cylinder 7. Therefore, if the lower limit position where the lower surface of the inner cylinder 3 abuts on the upper end of the outer cylinder 7 is set to the normal position, the screwing position of the inner cylinder 3 with respect to the drain portion 1a is appropriately set, and then the drain groove 1 is pushed down. By contacting the lower surface of the inner cylinder 3 with the upper end of the outer cylinder 7, the height position of the drainage groove 1 can be adjusted to the required height.

In this embodiment, a plurality of seal members 10 may be inserted and fitted between the drainage portion 1a and the outer cylinder 7. As a result, the stability at the time of mounting the drainage portion 1a is improved, and at the same time, the sealing property is improved. Conversely, the inner cylinder 3
If the packing 11 between the lower surface and the upper end of the outer cylinder 7 sufficiently exhibits a reliable waterproof function, the sealing member 10 may be omitted. Moreover, the attachment of the hair catcher 12 is not essential.

[Fifth Embodiment] In the fourth embodiment, the height position of the drain groove 1 is determined by pushing down the drain groove 1 and bringing the lower surface of the inner cylinder 3 into contact with the upper end of the outer cylinder 7. . Instead of this, as shown in FIG. 5, the lower surface of the outer cylinder 7 and the drain portion 1a
The spring 13 is interposed between the bottom of the inner cylinder 3 and the bottom of the outer cylinder 7, and the spring 13 applies a biasing force to the drainage section 1a to constantly push it downward. It is also possible to configure so that the height position of the drainage groove 1 is automatically set.

According to this structure, it is considered that the water blocking between the lower surface of the inner cylinder 3 and the upper end of the outer cylinder 7 of the trap 2 becomes more reliable than that of the fourth embodiment.

The above description with reference to the drawings is merely an example, and the embodiments of the present invention may be applied or modified in various other ways.

[0023]

According to the present invention, the drainage groove is connected to the trap so that the drainage groove can be moved in the vertical direction. Therefore, the short-term construction method is adopted, and the soil concrete is placed in advance around the drainage pipe. Even if the trap and the drain are installed after that, it is easy to adjust the installation height of the drain so as to be flush with the finished surface of the soil concrete. Moreover, since the seal member is interposed between the drain groove and the trap, the water tightness is not impaired when the position of the drain groove is adjusted.

[Brief description of drawings]

FIG. 1 shows a first embodiment of the present invention,
(A) is a longitudinal sectional view showing a main part of a connection structure of a drainage groove and a trap, and (B) is a partially enlarged view thereof.

FIG. 2 is a longitudinal sectional view showing a second embodiment of the present invention and showing a main part of a connection structure between a drainage groove and a trap.

FIG. 3 shows a third embodiment of the present invention and is a vertical sectional view showing an essential part of a connection structure between a drainage groove and a trap.

FIG. 4 is a vertical cross-sectional view showing a fourth embodiment of the present invention and showing a main part of a connection structure between a drain groove and a trap.

FIG. 5 is a longitudinal sectional view showing a fifth embodiment of the present invention and showing a main part of a connection structure between a drainage groove and a trap.

6A and 6B are cross-sectional views for explaining a conventional drainage groove and trap attachment procedure, in which FIG. 6A shows a case of a normal construction method, and FIG. 6B shows a case of a short-term construction method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drain groove 1a Drain part 2 Trap 3 Inner cylinder 4 Inflow part 7 Outer cylinder 8 Outflow pipe 10 Seal member (O-ring)

Claims (1)

[Claims] 1. A trap is attached to a drain pipe provided on the floor, and a drain of the drain is fitted to an inlet of the trap so that the drain can be moved in a substantially vertical direction. A connection structure between a drain and a trap, wherein a seal member is interposed between the drain and the drain.