JPH0341271U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案に係るメカニカルシールに組み
込まれるベローズの一実施例を示す拡大断面図、
第２図は同じく第１図Ａ部における一部拡大断面
図、第３図は本考案に係るベローズを用いたメカ
ニカルシールを缶体の軸封部に組み込んだ状態を
示す断面図、第４図は従来のメカニカルシールを
缶体の軸封部に組み込んだ状態を示す断面図、第
５図は同じく従来のメカニカルシールに使用され
るベローズの拡大断面図である。 １……缶体、２……回転軸、３……回転摺接環
（シールリング）、４……固定摺接環（メイテイ
ングリング）、２０……付勢体、２１……金属ベ
ローズ、２２……フツ化エチレン樹脂層。 FIG. 1 is an enlarged sectional view showing one embodiment of a bellows incorporated into a mechanical seal according to the present invention;
Fig. 2 is a partially enlarged sectional view of part A in Fig. 1, Fig. 3 is a sectional view showing a mechanical seal using a bellows according to the present invention installed in the shaft seal of a can body, and Fig. 4. 5 is a cross-sectional view showing a state in which a conventional mechanical seal is assembled into a shaft seal portion of a can body, and FIG. 5 is an enlarged cross-sectional view of a bellows used in the conventional mechanical seal. DESCRIPTION OF SYMBOLS 1... Can body, 2... Rotating shaft, 3... Rotating sliding ring (seal ring), 4... Fixed sliding ring (mating ring), 20... Biasing body, 21... Metal bellows, 22...Fluorinated ethylene resin layer.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 固定摺接環と、この固定摺接環に摺接される回
転摺接環と、この回転摺接環を前記固定摺接環側
に弾性的に押圧付勢する付勢体とからなり、この
付勢体は、金属ベローズの内周面にフツ化エチレ
ン樹脂層のライニングを施して形成したことを特
徴とするメカニカルシール。 It consists of a fixed sliding ring, a rotating sliding ring that slides on the fixed sliding ring, and a biasing body that elastically presses the rotating sliding ring toward the fixed sliding ring. A mechanical seal characterized in that the biasing body is formed by lining the inner peripheral surface of a metal bellows with a layer of fluorinated ethylene resin.