JPS61197326U

JPS61197326U -

Info

Publication number: JPS61197326U
Application number: JP8136085U
Authority: JP
Priority date: 1985-05-30
Filing date: 1985-05-30
Publication date: 1986-12-09

Description

[Brief explanation of the drawing]

第１図は本考案の第一実施例に係るシヤフトの
がたつき防止装置が適用されたバタフライバルブ
装置の要部側面断面図、第２図は第１図のバタフ
ライバルブ装置の正面図、第３図は第２図の装置
の平面図、第４図は第１図の押圧片とシヤフトを
取り出して示した概略斜視図、第５図は第４図の
側面図、第６図は本考案の第二実施例に係るシヤ
フトのがたつき防止装置が適用されたバタフライ
バルブ装置の要部正面断面図、第７図は第６図の
装置の要部側面断面図、第８図は第１図のバタフ
ライバルブ装置の正面断面図、第９図は第８図の
装置の平面図、第１０図は第６図のシヤフトの係
合溝を示すシヤフトの部分拡大斜視図、第１１図
は第６図の押圧片の拡大斜視図、第１２図は本考
案の第三実施例に係るシヤフトのがたつき防止装
置が適用されたバタフライバルブ装置の要部正面
断面図、第１３図は従来のシヤフトのがたつき防
止装置が適用されたバタフライバルブ装置の要部
側面断面図である。符号の説明、１……ハウジング、３，４，５，
１２……中実部、３ａ，４ａ，５ａ，１２ａ……
貫通孔、６……シヤフト、７……バタフライバル
ブ、８，１３……取付孔、９，１４，１７……押
圧片、１０，１５，２０……コイルスプリング（
付勢体）。 Fig. 1 is a side sectional view of a main part of a butterfly valve device to which a shaft rattling prevention device according to a first embodiment of the present invention is applied, and Fig. 2 is a front view of the butterfly valve device of Fig. 1; 3 is a plan view of the device shown in FIG. 2, FIG. 4 is a schematic perspective view showing the pressing piece and shaft shown in FIG. 1, FIG. 5 is a side view of FIG. 4, and FIG. FIG. 7 is a front sectional view of the main part of the butterfly valve device to which the shaft rattling prevention device according to the second embodiment is applied, FIG. 7 is a side sectional view of the main part of the device of FIG. 6, and FIG. 9 is a plan view of the device shown in FIG. 8, FIG. 10 is a partially enlarged perspective view of the shaft showing the engagement groove of the shaft shown in FIG. 6, and FIG. 11 is a partially enlarged perspective view of the shaft shown in FIG. Fig. 6 is an enlarged perspective view of the pressing piece, Fig. 12 is a front sectional view of the main part of a butterfly valve device to which the shaft rattling prevention device according to the third embodiment of the present invention is applied, and Fig. 13 is a conventional one. FIG. 2 is a side sectional view of a main part of a butterfly valve device to which a shaft rattling prevention device is applied. Explanation of symbols, 1...Housing, 3, 4, 5,
12...Solid part, 3a, 4a, 5a, 12a...
Through hole, 6... Shaft, 7... Butterfly valve, 8, 13... Mounting hole, 9, 14, 17... Pressing piece, 10, 15, 20... Coil spring (
biasing body).

Claims

[Scope of utility model registration request]

A through hole extending in the longitudinal direction is formed in a solid portion of the housing, and a shaft is loosely fitted into the through hole, and a mounting hole is formed in a direction intersecting the through hole in the solid portion of the housing. , a pressing piece that comes into contact with the shaft and a biasing body that presses the pressing piece toward the shaft are installed in the mounting hole, and the shaft is pressed against the wall surface of the through hole in the biasing direction. . A shaft rattling prevention device, characterized in that the shaft and the pressing piece are brought into surface contact.