JP2018044294A - adapter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress abnormal noise generated in use of an adapter and due to fall of waterdrop to the center of a drainage pipe line.SOLUTION: A cylindrical adapter of the present invention is used to fill a gap formed between an indirect cylindrical discharge part of a water closet and building-side drain piping into which a cylindrical protrusion is to be inserted. The overall length of the adapter is greater than that of the cylindrical protrusion. Thus, waterdrops flowing on a pipe line wall surface and generated on completion of washing of the water closet are guided to a drainage pipe line of a building, so that the waterdrops can be prevented from falling to the center of the pipe line resulting in generation of abnormal noise.SELECTED DRAWING: Figure 1

Description

  The present invention relates to providing an appropriate member for drainage pipes of various thicknesses used in the market, and particularly relates to an adapter suitable for preventing drip abnormal noise generated in the drainage pipe.

When assembling sanitary equipment on a conventional drainage pipe, an inclined surface should be provided in the vicinity of the discharge port so that the water flow just before the stoppage of drainage becomes weak and the drip-like flow follows the inner wall of the drainage pipe. The flow is made to follow the wall surface (see, for example, Patent Document 1).
In such a case, when the discharge port and the inner wall of the drainage pipe are close to each other, the flow can be made to follow the wall surface, and the drip can resonate the drainage pipe and generate noise. However, when the discharge port and the inner wall of the drain pipe are separated, there is a problem that the effect of suppressing the generation of abnormal noise is reduced.

However, the discharge port and the inner wall of the drain pipe may be separated from each other. The drainage pipes used in the sewer are made of vinyl chloride pipes, and those with different wall thicknesses called VP or VU are used together. When installing equipment such as toilets in the drainage pipes, A ring-shaped adapter for filling the wall thickness corresponding to the size at the site is appropriately selected to perform the mounting operation (see, for example, Patent Document 2).
In such a case, since the separation distance is generated with respect to the inner wall of the drainage pipe disposed on the outer side of the cylindrical sanitary equipment outlet arranged at the center, the water force immediately before the stoppage of drainage is weak. The drip-shaped flow falls directly to the drainage pipe from the outlet of the sanitary equipment without passing along the inner wall of the drainage pipe. If a ring adapter is used, the drip will flow into the drainage pipe. There was a problem that abnormal noise was generated by resonance.

JP 2014-181441 A Japanese Patent No. 3275533

  The present invention has been made to solve the above problems, and an object of the present invention is to suppress the generation of abnormal noise caused by the drop of water droplets at the center of a drain pipe, which occurs when an adapter is used.

  In order to achieve the above object, according to the first aspect of the present invention, it is generated between the indirect cylindrical discharge portion of the flush toilet and the drainage pipe on the building side into which the cylindrical protruding portion is inserted. In the cylindrical adapter used to fill the gap, the total length of the adapter is longer than the total length of the cylindrical protrusion, whereby the pipe wall surface generated at the end of washing of the flush toilet is The flowing water droplets can be guided to the drainage pipe of the building, and it is possible to prevent the water droplets from falling into the center of the pipeline and making noise.

  Further, according to the invention described in claim 2, the outlet end portion is provided with an inclination of 10 ° to 45 °, so that not only the drip flow can be prevented from directly falling, but also the building It has also become possible to prevent the ease of insertion into the drainage pipe from being degraded.

  According to the present invention, it is possible to guide the water droplets flowing on the wall surface of the pipeline generated at the end of washing of the flush toilet to the drain pipe of the building, and prevent the water droplets from falling into the center of the pipeline and making noise. There is an effect that can be done.

It is sectional drawing which shows the state which assembled | attached the sanitation equipment to the VU pipe using the adapter of this invention. It is sectional drawing which shows the state which assembled | attached the sanitation equipment to the VP pipe.

  FIG. 1 is a cross-sectional view showing a state in which sanitary equipment is assembled to a VU pipe using the adapter of the present invention. FIG. 2 is a cross-sectional view showing a state in which sanitary equipment is assembled to the VP pipe. The structure / function / effect of the present invention will be described in detail with reference to FIGS.

  A hard PVC pipe is generally used for drainage piping as a sewer of a building, but a thick VP pipe and a thin VU pipe are used in combination. Since it is not known which pipe is used for the drainage pipe of the building until the drainage pipe is seen, a ring-shaped adapter that fills the wall thickness of the VP pipe and the VU pipe is appropriately used in assembling the sanitary equipment. Selected and used. The specifications of 75 pipes with a nominal diameter of 75 mm are commonly used as drainage pipes for private residences. The VP pipe has a thickness of 5.5 mm and the VU pipe has a thickness of 2.7 mm. As a result, the gap confirmed by setting the wall thickness to 2.8 mm is filled, and the occurrence of water leakage is prevented.

  In the toilet 1 which is a representative example of sanitary equipment, the cylindrical discharge part 1a discharges the excrement discharged to the bowl (not shown) together with the unshown stored water with respect to the cylindrical discharge part 2a of the floor flange 2. It is supposed to be. The discharge part 2a is connected to a drain pipe opened on the floor 3 of the building, but whether the drain pipe is a thin VU pipe drain pipe 4a or a thick VP pipe drain pipe 4b is selected at each site. Therefore, when a gap is confirmed, the ring-shaped adapter 5 is assembled.

  Since the adapter 5 has a long overall length with respect to the discharge part 2a, water droplets flowing on the pipe wall surface generated at the end of washing of the flush toilet are led to the drain pipe 4a of the VU pipe of the building, and the pipe line It is possible to prevent water droplets from falling into the center and making noises.

  In addition, an inclination of 10 ° to 45 ° is provided at the outflow side end of the adapter 5, and in the case of drip-like water drops, water drops flowing on the wall surface of the pipeline generated at the end of washing fall off and fall along the inclination. It is supposed not to. Further, since the slope is provided, it is possible to prevent the insertability from being lowered when the adapter 5 is attached to the drain pipe 4a of the VU pipe.

DESCRIPTION OF SYMBOLS 1 ... Toilet bowl 1a ... Cylindrical discharge part (of toilet bowl) 2 ... Floor flange 2a ... Cylindrical discharge part 3 (floor flange) 3 ... Floor 4a ... Drainage pipe of VU pipe 4b ... Drainage pipe of VP pipe 5 ... Adapter

Claims (2)

An indirect cylindrical discharge part of the flush toilet,
In the cylindrical adapter used to fill the gap generated between the building-side drainage pipe into which the cylindrical protrusion is inserted,
The adapter is characterized in that a total length of the adapter is longer than a total length of the cylindrical protrusion.   The adapter according to claim 1, wherein the outlet end portion is provided with an inclination of 10 ° to 45 °.

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