JPH0287195U

JPH0287195U -

Info

Publication number: JPH0287195U
Application number: JP16582788U
Authority: JP
Priority date: 1988-12-23
Filing date: 1988-12-23
Publication date: 1990-07-10

Description

[Brief explanation of the drawing]

第１図はこの考案の第１実施例に係る送液配管
の打撃騒音発生防止構造を示す一部縦断側面図、
第２図は第１図のＡ―Ａ線断面図である。第３図
ないし第５図はこの考案の第２実施例ないし第４
実施例に係る送液配管の打撃騒音発生防止構造を
示す一部縦断側面図である。第６図は送液配管が
配置されるスラブの振動加速度レベルと振動周波
数との関係を示す図、第７図および第８図は鞘管
工法を説明するための縦断正面図、第９図は第７
図におけるコンクリートスラブに埋設された鞘管
および送液配管を示す一部縦断側面図である。図において、１は鞘管、２は送液配管、３は打
撃騒音発生防止用緩衝材、６は緩衝材巻付き送液
配管である。 FIG. 1 is a partially longitudinal side view showing a structure for preventing the occurrence of impact noise of a liquid delivery pipe according to a first embodiment of this invention;
FIG. 2 is a sectional view taken along the line AA in FIG. 1. Figures 3 to 5 show second to fourth embodiments of this invention.
FIG. 2 is a partially longitudinal side view showing a structure for preventing impact noise generation of a liquid feeding pipe according to an embodiment. Figure 6 is a diagram showing the relationship between the vibration acceleration level and vibration frequency of the slab on which the liquid delivery pipe is arranged, Figures 7 and 8 are vertical cross-sectional front views for explaining the sheath pipe construction method, and Figure 9 is 7th
FIG. 2 is a partially longitudinal side view showing a sheath pipe and liquid feeding pipe buried in the concrete slab in the figure. In the figure, 1 is a sheath pipe, 2 is a liquid feeding pipe, 3 is a buffer material for preventing impact noise generation, and 6 is a liquid feeding pipe wrapped with a buffer material.

Claims

[Scope of Claim for Utility Model Registration] (1) A liquid delivery pipe using the sheath pipe construction method in which a buffer material 3 for preventing impact noise is provided between the sheath pipe 1 and the liquid delivery pipe 2 inserted therein. Structure that prevents impact noise. (2) Annular impact noise made of soft synthetic resin that protrudes toward the center of the sheath tube is generated at a large number of inner annular protrusions at every other or every other place in the sheath tube 1, which is made of a synthetic resin tube with corrugated bellows. Prevention cushioning material 3
are integrally provided, and the liquid feeding pipe 2 is connected to each of the buffer materials 3.
A structure that prevents the occurrence of impact noise from liquid delivery piping using the sheath pipe construction method, which is inserted through the inside of the pipe.