JP3100171U - Thin flexible pipe fitting without packing - Google Patents

Abstract

【課題】薄肉可撓管の、拡径部を４５度傾けてパッキンを無くし、さらには耐久性まで改善し得るパッキン無し薄肉可撓管継手を提供する。
【解決手段】薄肉可撓管１の両端部分に外装された袋ナット２と、袋ナット２の抜け止めとして、薄肉可撓管両端部を４５度傾け拡径にして内側に折り曲げ２重による、形成された拡径部５を備えた薄肉可撓管継手である。
【選択図】図１The present invention provides a thin flexible pipe joint without packing that can eliminate packing by inclining an enlarged diameter portion of the thin flexible pipe by 45 degrees and further improve durability.
SOLUTION: A cap nut 2 provided at both ends of a thin-walled flexible tube 1 is provided. As a stopper for the cap nut 2, both ends of the thin-walled flexible tube are inclined at 45 degrees to expand the diameter to be bent inward to be doubled. This is a thin-walled flexible pipe joint having the formed enlarged diameter portion 5.
[Selection diagram] Fig. 1

Description

考案の詳細な説明Detailed description of the invention

配管と配管の間に連結する為に使用されるパッキン無し薄肉可撓管継手に関するものである。The present invention relates to a thin flexible pipe joint without packing used for connection between pipes.

従来、配管と配管の間を連結する可撓管継手は、可撓管の両端部に外装された袋ナットと、袋ナットの抜け止めとして可撓管の両端部に４５度傾けて形成された拡径部とを備えており、袋ナットの内壁に刻設した雌ネジと連結対象となる金具の外壁に刻設した雄ネジとを螺着し、両者を連結するものである。Conventionally, a flexible pipe joint for connecting between pipes is formed by cap nuts provided at both ends of the flexible pipe and inclined at 45 degrees to both ends of the flexible pipe to prevent the cap nut from coming off. A female screw engraved on the inner wall of the cap nut and a male screw engraved on the outer wall of the fitting to be connected are screwed together to connect the two.

この時、袋ナットに４５度傾けて形成した縮径部は、袋ナットの回転に応じて可撓管端部に４５度傾けて形成した拡径部を配管の方向に押し進め、金具の端面と可撓管の拡径部端面を圧接させ、管の内部と外部とを構造的に遮断する。At this time, the reduced-diameter portion formed by inclining the cap nut at 45 degrees pushes the enlarged portion formed by inclining the flexible tube end by 45 degrees in the direction of the pipe in accordance with the rotation of the cap nut, and the end face of the metal fitting is pushed. The end face of the enlarged-diameter portion of the flexible tube is brought into pressure contact with the inside of the tube to structurally shut off the inside and the outside.

考案が解決しようとする課題Issues that the device is trying to solve

上記可撓管継手の袋ナットに４５度傾けて形成した縮径部は、袋ナットの回転に応じて可撓管端部に４５度傾けて形成した拡径部を配管の方向に押し進め、金具の端面と可撓管の拡径部端面を圧接させ、管の内部と外部とを構造的に遮断する。The reduced diameter portion formed by inclining at 45 degrees to the cap nut of the flexible pipe joint pushes the enlarged portion formed by inclining by 45 degrees to the end of the flexible tube in the direction of the pipe according to the rotation of the cap nut, and Is pressed against the end face of the enlarged diameter portion of the flexible tube to structurally shut off the inside and outside of the tube.

また、上記の構造で、薄肉可撓管を使用した場合可撓管継手に内圧が発生し、可撓管の波状管部分が伸び様としたとき、両端が固定されている為、波状管部分が曲がる現象が起きて、拡径部端面に引っ張る力が生じ、薄肉可撓管の方が抜ける可能性が高い。In addition, in the above structure, when a thin flexible tube is used, an internal pressure is generated in the flexible pipe joint, and when the corrugated tube portion of the flexible tube tends to expand, both ends are fixed. Is bent, a pulling force is generated on the end face of the enlarged diameter portion, and the thin flexible tube is more likely to come off.

考案が解決するための手段Means for solving the invention

可撓管より薄肉可撓管の方が振動・変位に優れているが、薄肉の為可撓管に比べて両端拡径部端面の強度が低下する、それを解消する為両端拡径部端面の外周を内側に折り曲げて２重にした事により肉厚が従来の可撓管より厚くなるので強度が増した。The thin flexible tube is superior in vibration and displacement to the flexible tube, but the strength of the enlarged end portion at both ends is lower than that of the flexible tube due to the thin wall. By bending the outer periphery of the tube inward to make it double, the wall thickness becomes thicker than that of the conventional flexible tube, thereby increasing the strength.

また、拡径部端面を２重にした事で端面に柔軟性を保ち密着度が良くなる為締め付けが楽になる。In addition, since the end face of the enlarged diameter portion is doubled, flexibility is maintained on the end face and the degree of adhesion is improved, thereby facilitating tightening.

以下、本考案の実施の形態を図面に基づいて説明する。図１は本考案に係るパッキン無し薄肉可撓管継手の実施の形態を示す図で、一部断面にて示す。図２は図１のＡ部拡大図で、図３は従来のＡ部拡大図である。Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a view showing an embodiment of a thin flexible pipe joint without packing according to the present invention, which is shown in a partial cross section. FIG. 2 is an enlarged view of a portion A in FIG. 1, and FIG. 3 is an enlarged view of a conventional portion A.

このパッキン無し薄肉可撓管継手は、金属製波状管からなる薄肉可撓管１と、薄肉可撓管１の両端部分に外装された袋ナット２の抜け防止として薄肉可撓管１の両端部を４５度傾けて拡径し折り曲げ成形して形成された拡径部５と、袋ナット２の縮径部６を直接、配管側部材である金具３に連結されている。This thin flexible pipe joint without packing comprises a thin flexible pipe 1 made of a corrugated metal pipe and both ends of the thin flexible pipe 1 for preventing the cap nuts 2 provided on both ends of the thin flexible pipe 1 from coming off. The diameter-increased portion 5 formed by inclining and bending at an angle of 45 degrees and the diameter-reduced portion 6 of the cap nut 2 are directly connected to the metal fitting 3 as a pipe-side member.

本実施の形態において配管４の端部はテーパー雌ネジ１１が刻設されており、袋ナット２に刻設されているストレート雌ネジ７を直接螺着することができないため、袋ナット２を連結するためのアダプターとして、一端部テーパー雄ネジ１０を他端部にストレート雄ネジ８を刻設した金具３とが、この順番で配管４に螺着されている。In the present embodiment, the end of the pipe 4 is provided with a tapered female screw 11, and the straight female screw 7 provided on the cap nut 2 cannot be directly screwed. A metal fitting 3 having a tapered male screw 10 at one end and a straight male screw 8 at the other end is screwed to the pipe 4 in this order.

図２は、薄肉可撓管１の拡径部５の端部９を４５度傾けて折り曲げ２重にする事により、柔軟性を保ち密着度を高め、強度を増す構造になっている。FIG. 2 shows a structure in which the end portion 9 of the enlarged diameter portion 5 of the thin-walled flexible tube 1 is bent and doubled by inclining at 45 degrees to maintain the flexibility, increase the degree of adhesion, and increase the strength.

図３は、従来の構造で可撓管１の拡径部５の端部９を拡径した構造になっている。
図の説明FIG. 3 shows a conventional structure in which the end 9 of the enlarged diameter portion 5 of the flexible tube 1 is enlarged.
Figure description

本考案に係るパッキン無し薄肉可撓管継手の実施の形態を示す一部断面図Partial sectional view showing an embodiment of a thin flexible pipe joint without packing according to the present invention. 図１におけるＡ部拡大図A part enlarged view in FIG. 従来のＡ部拡大図Conventional A section enlarged view

符号の説明Explanation of reference numerals

１．　薄肉可撓管波状部
２．　袋ナット
３．　金具
４．　配管
５．　薄肉可撓管拡径部
６．　袋ナット縮径部
７．　袋ナット雌ネジ
８．　金具ストレート雄ネジ
９．　薄肉可撓管拡径部端部
１０．金具テーパー雄ネジ
１１．配管テーパー雌ネジ1. 1. Thin flexible tube corrugated part Cap nut 3. Metal fittings 4. Piping 5. 5. Thin-walled flexible tube enlarged diameter section 6. Reduced diameter of cap nut 7. Cap nut female screw Metal fitting straight male screw 9. 9. Thin-walled flexible tube enlarged-diameter end portion 10. Metal fitting taper male screw Piping taper female screw

Claims (1)

薄肉可撓管の両端部分に外装された袋ナットと、袋ナットの抜け止めとして薄肉可撓管の両端部を４５度傾けて拡径にして、内側に折り曲げて２重にした、拡径に形成された事を特徴とする薄肉可撓管継手。Cap nuts provided at both ends of the thin-walled flexible tube, and both ends of the thin-walled flexible tube are tilted at 45 degrees to increase the diameter to prevent the cap nut from coming off, and are bent inward to be doubled to increase the diameter. A thin flexible pipe joint characterized by being formed.

Images