JPS63182391U

JPS63182391U -

Info

Publication number: JPS63182391U
Application number: JP7302187U
Authority: JP
Priority date: 1987-05-15
Filing date: 1987-05-15
Publication date: 1988-11-24

Description

[Brief explanation of the drawing]

第１図は本考案の配管結合構造の１実施例を示
す縦断面図、第２図は第１図図示部分の外観斜視
図、第３図は本考案の他の実施例を示す縦断面図
である。第４図および第５図は従来の配管結合構
造を示し、第４図はその縦断面図、第５図は第４
図に至る過程の配管結合構造の要部拡大断面図で
ある。１……第１管、２……第２管、３……Ｏリング
（シール部材）、４……ワツシヤ（ストツパ部）
５……締着部材、６……膨出肩部（ストツパ部）
、１０……嵌合部、１１……第１拡管部、１２…
…第２拡管部、１３……フランジ部、２１……先
端直管部、２２……鍔部。 Fig. 1 is a longitudinal cross-sectional view showing one embodiment of the pipe connection structure of the present invention, Fig. 2 is an external perspective view of the part shown in Fig. 1, and Fig. 3 is a longitudinal cross-sectional view showing another embodiment of the present invention. It is. Figures 4 and 5 show conventional pipe connection structures, with Figure 4 being a vertical cross-sectional view and Figure 5 being a
It is an enlarged sectional view of the main part of the piping connection structure in the process leading up to the figure. 1...First pipe, 2...Second pipe, 3...O ring (sealing member), 4...Washer (stopper part)
5...Tightening member, 6...Bulging shoulder part (stopper part)
, 10... Fitting part, 11... First tube expansion part, 12...
...Second tube expansion part, 13...Flange part, 21...Tip straight pipe part, 22...Bangle part.

Claims

[Claims for Utility Model Registration] (1) A pipe connection structure in which two pipes are airtightly and removably connected, including a fitting part provided at one end and a fitting part provided at one end of the fitting part. a first tube having an expanded tube portion with a large inner diameter and a flange formed at the tip of the expanded tube portion; and a first tube having an outer diameter that can be inserted into the fitting portion of the first tube and inserted from the expanded tube portion. A second tube having at least a distal end straight pipe part whose distal end fits into the fitting part and a flange part provided at the base of the distal straight pipe part and abuts on the flange part.
a ring-shaped elastic sealing member interposed in a compressed state in a gap between the inner circumferential surface of the expanded tube portion and the outer circumferential surface of the straight tip tube portion; It is characterized by comprising: a stopper portion disposed between the tubes and pressing the sealing member inwardly of the expanded tube portion; and a fastening member urging the flange portion and the collar portion in a direction in which they come into contact with each other. Piping connection structure. (2) The pipe coupling structure according to claim 1, wherein the stopper portion is a ring fitted onto the outer peripheral surface of the straight pipe portion at the distal end of the second pipe. (3) The flange part is a bulging part of the second tube, and the stopper part is a bulging shoulder part that is formed integrally with the bulging part on the straight pipe part side at the distal end and can be inserted into the expanded pipe part. Piping connection structure according to claim 1 of patent registration.