Pipe and pipe connector with special resin layer capable of reduicing noise

Abstract

Provided are a pipe and a pipe joint excellent in noise insulation effect while preventing any degradation of the water discharge capacity of an existing pipe, having strong resistance against chemical substances, and with noise reduction function. A special resin layer with noise reduction function is tightly fitted to an outer circumferential surface of a water discharge pipe and a pipe joint formed of hard PVC. The special resin layer with noise reduction function is basically formed of a PVC resin and a plasticizer, and calcium carbonate, etc., can be further added thereto. An inner layer may be formed of a polyolefin resin in place of the hard PVC resin.

Description

technical field [0001] The present invention relates to a sewer pipe and a pipe joint for discharging sewer, in particular to a pipe and pipe joint with a resin layer capable of reducing noise outside the pipe and pipe joint in order to reduce the noise generated when the sewer is discharged. Background technique [0002] Such as figure 1 Shown, the drainpipe of discharge downwater in the past generally is made of hard PVC, makes the circular straight pipe 1 that has certain thickness. To connect such a drain straight pipe 1, pipe joints of various shapes are manufactured, Figure 2 to Figure 6 Examples of various fittings are shown. [0003] However, the above-mentioned straight drainage pipe and pipe joint, when in use, the discharged sewage collides with the pipe wall to generate noise, and this noise resonates with the pipe to form a larger noise that is transmitted to the outside. [0004] As we all know, if the above-mentioned noises continue to occur, in daily life...

AI Technical Summary

Problems solved by technology

[0008] However, when using the noise-reducing pipe of the above application, compared with the previous technology, it has the advantages of reducing noise and easy construction, but there is also a layer that can reduce noise in the product, which reduces the drainage capacity. The physical properties such as strength and strength are weakened, it is easy to cause damage due to the presence of different substances in the piping, and it has weak corrosion resistance to various chemical substances.

[0009] In addition, in the case of internal layers, in order to improve the effect of reducing noise, the internal layer must be thickened accordingly, but not all of them are the same thickness. There is not only a limit to the increase in thickness according to different products, but also when the thickness increases , Due to the difference in thickness at the part connected to the pipe joint, there are problems such as noise generation and obstruction of drainage flow.

[0010] Since the temperature of the drainage flowing inside the pipe is different from the temperature outside the pipe, there is also a problem that condensation will occur outside the pipe, and eventually the life of the building where the pipe is installed will be shortened.

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