JPS6171849U - - Google Patents

Description

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

第１図は従来手段の説明図、第２図は先行技術
手段の説明図、第３図は本考案によるボイラーに
おける減圧弁の罐体に取付た状態の縦断面図、第
４図は同上のボデイ主体部の上面図、第５図は同
上の縦断面図、第６図はバネケースの上面図、第
７図は同上の縦断側面図である。 図面符号の説明、Ａ……ボイラー、ａ……減圧
弁、ｂ……配管、ｃ……保温材、ｆ……取付鍔部
、ｗ……弁機構部、ｙ……調節部、１……罐体、
１ａ……罐壁、１０……水取入管、１１……取付
穴、２……ボデイ、２ａ……ボデイ主体部、２０
……給水出口側接続筒部、２１……給水入口側接
続筒部、２２……１次圧室、３……筒状部、２４
……ストレーナー室、２５，２５ａ……組付座、
２６……ストレーナー、２７……２次圧導入室、
３……逆止弁、３ａ……弁体、３０……弁座、３
２……バネ、３３……逆止弁、４……調圧弁、４
０……弁杆、４１……ピストン部、４２……弁座
、５……圧力感知板、５０……止着ネジ、６……
バネケース、６ａ……裾部、６０……調節ネジ、
７０……セツトボルト、８０……取付座部、８１
……シール材。 Fig. 1 is an explanatory diagram of the conventional means, Fig. 2 is an explanatory diagram of the prior art means, Fig. 3 is a vertical cross-sectional view of the pressure reducing valve in the boiler according to the present invention in a state attached to the casing, and Fig. 4 is the same as the above. FIG. 5 is a top view of the main body part, FIG. 5 is a longitudinal sectional view of the same as above, FIG. 6 is a top view of the spring case, and FIG. 7 is a longitudinal sectional side view of the same as above. Explanation of drawing symbols, A... Boiler, a... Pressure reducing valve, b... Piping, c... Insulating material, f... Mounting flange, w... Valve mechanism, y... Adjustment part, 1... housing,
1a...Can wall, 10...Water intake pipe, 11...Mounting hole, 2...Body, 2a...Body main part, 20
... Water supply outlet side connection cylinder part, 21 ... Water supply inlet side connection cylinder part, 22 ... Primary pressure chamber, 3 ... Cylindrical part, 24
... Strainer room, 25, 25a ... Assembly seat,
26...Strainer, 27...Secondary pressure introduction chamber,
3... Check valve, 3a... Valve body, 30... Valve seat, 3
2... Spring, 33... Check valve, 4... Pressure regulating valve, 4
0... Valve rod, 41... Piston part, 42... Valve seat, 5... Pressure sensing plate, 50... Fixing screw, 6...
Spring case, 6a... hem, 60... adjustment screw,
70...Set bolt, 80...Mounting seat, 81
...Sealing material.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 弁機構部を罐体内部に没入する状態にボイラー
に組付ける減圧弁において、それのボデイをボイ
ラーの罐体に取付ける取付鍔部を、そのボデイに
ダイヤフラムを押込むバネを収容するよう組付け
られるバネケースの裾部の周縁部位に該バネケー
スと一体に連続せしめて形設したことを特徴とす
るボイラーにおける減圧弁。 In a pressure reducing valve that is assembled into a boiler with the valve mechanism recessed inside the casing, the mounting collar that attaches the body to the boiler casing is assembled to accommodate the spring that pushes the diaphragm into the body. 1. A pressure reducing valve for a boiler, characterized in that the pressure reducing valve is formed integrally and continuously with the spring case at a peripheral portion of the hem of the spring case.