JPS6016695Y2 - drain trap - Google Patents

Description

[Detailed description of the invention] This invention is a drainage trap, in particular, a drainage trap that is installed on the floor of a general building where a washing machine is installed, and drains the drainage from the drainage port of the waterproof pan on which the washing machine is placed into the building drainage pipe. Concerning traps.

Conventionally, in order to discharge wastewater from a washing machine, regardless of whether it is a wooden mortar house or a reinforced concrete house, a waterproof pan is placed under the washing machine, and the outlet of the pan is connected to the building's drainage main pipe using a flexible hose. This is often done by doing something.

However, in high-rise steel-framed reinforced concrete houses, branch pipes are piped from the main drainage pipe to each house, and a connecting pipe is located on the slab surface of the washing machine storage area, and a drain trap is attached to this connecting pipe to prevent water-tight pans. It is designed to connect to the outlet.

However, there is a problem that the position of the branch pipe buried during concrete placement may shift, and the center of the opening of the branch pipe and the center of the outlet of the waterproof pan do not match, making it difficult to install the drain trap. Attempts have been made to use flexible hoses to deal with this problem, but generally the distance between the slab surface and the bottom surface of the waterproof pan is small, making construction complicated, and in practice, the amount of eccentricity can only be reduced, so it is not effective. It wasn't on point.

The present invention was devised in consideration of the above-mentioned problems, and its purpose is to absorb the eccentricity of each other, even if the center of the drain pipe and the center of the outlet of the waterproof pan do not coincide with each other. It is an object of the present invention to provide a drain trap that can reliably connect a drain pipe and a drain pipe.

In this invention, an annular ring made of an elastic material is integrally attached to the inner circumferential side of the upper end opening of a cylindrical body that has a trap structure inside and is connected to a drain pipe, and the lower part of the annular ring is attached to the inner circumference of the upper end opening. A waterproof pan connecting cylindrical body that is tiltably and height-adjustably fitted and has a drainage inlet formed at the top, and the center of the drainage inlet of the connecting cylindrical body is relative to the center line of the upper end opening of the cylindrical body. The present invention relates to a drainage trap characterized in that it is configured to be able to align itself.

Hereinafter, a detailed description will be given based on an embodiment shown in the attached drawings. FIG. 1 shows the structure of a drain trap according to the present invention, and 1 in the figure has a threaded portion 2a at the lower end opening 2. A cylindrical body 4 is connected to a drain pipe 3, a cylindrical body 5 extends inward from the lower end opening 2 of the cylindrical body 1, and a bowl-shaped cup 6 is placed to cover the cylindrical body from above. 7 is an annular ring made of a rubber material that is fitted into an annular recess 9 formed in the inner circumferential side of the upper end opening 8 of the cylindrical body 1 and has an annular protrusion 7 a on the inner circumferential side; 11 is the first eccentric bush fitted into the lower part of the annular ring;
A second eccentric bushing is integrally and rotatably attached to the eccentric bushing, and the first and second eccentric bushings 10.
11 constitutes a waterproof pan connecting cylinder body 12.

Further, 13 is a perforated plate holder that is screwed and fixed to the second eccentric bush 11, 14 is a perforated plate that is detachably attached to the second eccentric bush holder and has a drainage receiving port 15 in the center, and 16 is a first eccentric bush 11. This is a gasket that is placed between the perforated plate receivers 13 and fits into the inner peripheral edge of the discharge port 18 of the waterproof pan 17.

Next, to explain the first and second eccentric bushings 10.11 in more detail, first, a plan view and a side view of the first eccentric bushing 10 are shown in FIGS. 2 and 3, respectively, and 20 is The lower cylindrical body is fitted into the annular ring 7 of the cylindrical body 1, and has an elongated cylindrical shape whose axial length is increased by a required amount.

21 is formed integrally with the lower cylindrical body, and has a female threaded portion 2 on the inner periphery.
2 is a gripping ring formed integrally with the upper and lower cylinders at a position corresponding to the connecting part between the upper and lower cylinders 20 and 21, and has a non-slip protrusion 24 on the outer circumferential surface. The required number is outstanding.

The center O□ of the lower cylindrical body 20 and the center 0 of the upper cylindrical body 21
□ is formed to be eccentric by a required amount e.

Similarly, a plan view and a side view of the second eccentric bushing 11 are shown in FIGS. The connecting cylinder part 27 has a threaded part 26 formed on its outer periphery, and the perforated plate receiver 27 has a center 04 at a position eccentric from the center 03 of the connecting cylinder part with the same eccentricity e as that of the first eccentric bush 10. The cylindrical portion 2B is a grip ring formed integrally with both cylindrical portions at a position corresponding to the connection portion of the above-mentioned quantity cylindrical portions, and having a required number of anti-slip protrusions 29 protruding from the outer peripheral surface. 25
, 27 and the gripping ring 28 are integrally bottomed.

Reference numeral 30 denotes a female screw portion provided on the inner circumferential side of the perforated plate mounting cylinder portion 27 and into which the perforated plate support 13 is screwed.

A drain trap having a waterproof pan connecting cylinder 12 consisting of the first and second eccentric bushes 10 and 11 described above is installed between the discharge pipe piped into the building and the discharge port of the waterproof pan on which the washing machine is placed. The steps to do this are described below.

First, after attaching only the cylindrical body 1 to the already installed drain pipe 3 via the threaded part 2a of the lower end opening 2, place the waterproof pan 17 at a predetermined installation location, Check the positions of the core of the upper end opening 8 of the cylindrical body 1 and the core of the discharge port 18 of the waterproof pan 17.

If the two parts are misaligned, it will be necessary to align them as described below, so please adjust the waterproof pan 1 at the above stage.
7, perform centering work on the discharge port 18, and remove the waterproof pan 17.
Remove one step.

In order to align the center of the drainage receiving port 15 of the perforated tray holder 14 with the center of the discharge port 18, first fit the lower cylindrical body 20 of the first and second eccentric bushings 10 into the annular ring 7 of the cylindrical body 1. .

Then, due to the rotation of the first eccentric bush 10 with respect to the cylindrical body 1 and the rotation of the second eccentric bush 11 with respect to the first eccentric bush 10, the drainage catch of the perforated plate holder 14 is moved from the center of the cylindrical body 1, that is, the center of the drain pipe 3. The center of the inlet 15 can be eccentric by a required amount, and explanatory diagrams thereof are shown in FIGS. 6 to 8.

FIG. 6 shows the trajectory of the center 0□ of the upper cylindrical body 21 of the first eccentric bushing 10 when it is rotated, and the trajectory draws a circle with a radius e centered on the center O of the cylindrical body 1. .

FIG. 7 also shows that when the center 02 of the upper cylinder body 21 of the first eccentric bushing 10 is at an arbitrary position E, the second eccentric bushing 1
This is the locus of the center of the perforated plate receiving cylindrical portion 27 of the bushing when the bushing 1 is rotated, that is, the center 0 of the drainage receiving port 15, and the locus draws a circle with a radius e centered at the position E.

The center of the drainage inlet O1 with respect to the center O of the cylindrical body 1 is determined by the rotational combination of the first and second eccentric bushings 10. It can be placed at any position within a circle with a diameter of 2e centered on the concentric center O.

Therefore, even if the center of the cylindrical body 1 and the center of the discharge port 18 of the waterproof pan 17 are misaligned, the first and second eccentric bushings 10.11
The above concentricity can be aligned by rotating as needed.

After aligning as described above, the waterproof pan 17 is laid. First, fit the gasket 16 into the opening edge of the discharge port 18 of the waterproof pan, place the waterproof pan 17 in a predetermined position, and place the waterproof pan 17 on the top surface of the pan. The second eccentric bushing 11 which is aligned with the center of the discharge port 18 by passing the double-sided plate receiver 13 through the discharge port 18
By screwing and fixing to the perforated plate receiving cylinder part 27, the drain pipe 3 and the waterproof pan 17 are connected to the first and second eccentric bushings 10, 1.
They are connected by a waterproof pan connecting cylindrical body 12 consisting of 1.

Then, a perforated plate 14 is placed on the perforated plate holder 13, and a rubber hose holder 3, which can be opened and closed, is attached to the drainage receiving port 15 of the plate as needed.
1, the installation of the waterproof pan 17 is completed.

In the process of connecting the waterproof pan 17 to the drain pipe 3, the lower cylindrical body of the first eccentric bushing 10, which is fitted into the annular ring 7 of the cylindrical body 1, is formed into a long cylindrical shape as described above. Therefore, the depth of fitting into the annular ring 7 can be adjusted arbitrarily, and as a result, the height position of the perforated plate support 13 can be adjusted, and the distance between the waterproof pan 17 and the drain pipe 3 can vary slightly depending on the construction site. It can be installed securely even if

Moreover, since the first eccentric bush 10 is elastically supported by the annular ring 7, it can be tilted in any direction.
Alternatively, by absorbing and correcting the inclination of the axis of the drain pipe 3, even if both of them are inclined, it can be easily installed, and the connection work becomes even easier.

As described above, the drainage trap according to the present invention can have the following effects.

(1) Since the drain pipe and the outlet of the waterproof pan can be aligned, it is easy to connect the two, and errors in construction of the drain pipe relative to the installation position of the waterproof pan can be absorbed and corrected.

(2) Since the waterproof pan connecting cylindrical body is elastically supported by the cylindrical body, the connecting cylindrical body can be tilted in any direction, which further simplifies the above-mentioned connecting work.

(3) Since the connecting cylindrical body is attached to the cylindrical body so as to be able to move up and down by the required amount, the connection can be ensured even if the distance between the drain pipe and the waterproof pan changes.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway side view of the drainage trap according to the present invention;
Fig. 2 is a plan view of the first eccentric bushing, Fig. 3 is a side view of the same, Fig. 4 is a plan view of the second eccentric bushing, Fig. 5 is a side view of the same, Fig. 6 is a rotation of the first eccentric bushing. Fig. 7 shows the locus of the center of the upper cylindrical body of the bushing when the second eccentric bushing is rotated, Fig. 8 shows the locus of the center of the perforated plate receiving cylindrical part 27 of the bushing when the second eccentric bushing is rotated, and Fig. 8 shows the cylindrical shape. It shows the eccentric area of the center of the discharge port and intake port with respect to the center of the main body 1. 1... Cylindrical body, 3... Drain pipe, 4.
... Trap structure part, 7 ... Annular ring, 8 ... Upper end opening, 10 ... First eccentric bush, 11 ... Second Eccentric bushing, 12.
... Waterproof pan connecting cylinder, 15 ... Drainage intake port.

Claims (2)

[Scope of utility model registration request] (1) An annular ring made of an elastic material is integrally attached to the inner circumferential side of the upper end opening of the cylindrical body that has a trap structure inside and is connected to a drain pipe, and the lower part is attached to the annular ring. A waterproof pan connecting cylindrical body fitted in a tiltable and height-adjustable manner and having a drainage inlet at the top thereof is arranged so that the center of the drainage inlet of the connecting cylindrical body is aligned with the center line of the upper end opening of the cylindrical body. A drainage trap characterized by being configured to be able to align. (2) The waterproof pan connecting cylinder is equipped with two stages of eccentric bushings,
Utility model registration claim No. 1, characterized in that the center of the upper drainage receiving port can be aligned with the center of the opening of the waterproof pan by adjusting the eccentricity of each of them.
Drainage trap described in section 1)