JPS6049359U

JPS6049359U - Structure of butterfly valve

Info

Publication number: JPS6049359U
Application number: JP14290283U
Authority: JP
Inventors: 三宅　勝信; 堀井　浩志
Original assignee: 株式会社　栗本鉄工所
Priority date: 1983-09-13
Filing date: 1983-09-13
Publication date: 1985-04-06

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来例を示す縦断図、第２図は従来例による加
工組立を示す縦断図、第３図Ａ、　Ｂは第２図の水封手
段を示す部分図、第４図は本考案に係る弁の組立縦断図
、第５図Ａは弁箱の正面縦断図、第５図Ｂは弁箱の平面
図、第６図は実施例の−を示す説明図、第７図は該実施
例のプレス内型１４の斜視図、第８図は別の実施例の−
を示す説明図、第９図は該実施例により製作した弁箱の
斜視図。１・・・弁箱、２・・・弁体、３・・・シートリング、
４・・・弁箱の内周面のうち円周部、５・・・同平面座
部、６・・・弁軸、７・・・弁軸孔、８・・・軸受、９
・・・環状凹部、１０・・・環状部材、１１・・・フラ
ンジ、１２・・・ハンドル、１３・・・プレス外型、１
４，１４′・・・プレス内型、１５・・・鋼管素材、１
６・・・プレス外型、１７・・・プレス内型、１８・・
・鋼板素材、１９・・・溶接線。第３図第４図Fig. 1 is a longitudinal sectional view showing the conventional example, Fig. 2 is a longitudinal sectional view showing processing and assembly according to the conventional example, Fig. 3 A and B are partial views showing the water sealing means of Fig. 2, and Fig. 4 is the present invention. FIG. 5A is a front vertical sectional view of the valve box, FIG. 5B is a plan view of the valve box, FIG. 6 is an explanatory diagram showing - of the embodiment, and FIG. 7 is a front longitudinal sectional view of the valve box. A perspective view of the press inner mold 14 of the example, FIG. 8 is of another embodiment.
FIG. 9 is a perspective view of a valve box manufactured according to the embodiment. 1... Valve box, 2... Valve body, 3... Seat ring,
4...Circumferential portion of the inner circumferential surface of the valve box, 5...Flat seat portion, 6...Valve stem, 7...Valve stem hole, 8...Bearing, 9
... Annular recess, 10... Annular member, 11... Flange, 12... Handle, 13... Press outer mold, 1
4, 14'... Press inner mold, 15... Steel pipe material, 1
6...Press outer mold, 17...Press inner mold, 18...
- Steel plate material, 19...welding line. Figure 3 Figure 4

Claims

[Scope of utility model registration request]

An annular valve body, a valve stem that rotatably passes through the valve body, a valve body inserted through the center of the valve body, and a seat ring made of an elastic material fitted around the outer periphery of the second valve body. In the structure of the butterfly valve in which a flat seat part is formed on the valve stem layer of the seat ring, a valve body having a flat seat part that fits the flat seat part is formed by press working from steel material. The structure of the butterfly valve.