JPS62153406U

JPS62153406U -

Info

Publication number: JPS62153406U
Application number: JP4222486U
Authority: JP
Priority date: 1986-03-22
Filing date: 1986-03-22
Publication date: 1987-09-29

Description

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

第１図乃至第４図は第１の実施例を表わす図面
であつて、第１図は本考案に係る絞り弁の脱落防
止構造を具備する流量制御装置を取付けた油圧シ
リンダの、その一部を切欠させた状態を表わす正
面図、第２図は同側面図、第３図流量制御装置の
断面図、第４図は同流量制御装置の作用状態を表
わす断面図である。第５図と第６図は第２の実施
例を表わす図面であつて、第５図は流量制御装置
の断面図、第６図は同流量制御装置の作用状態を
表わす断面図である。又、第７図は従来構造の流
量制御装置を表わす断面図である。１……油圧シリンダ、１Ａ……シリンダチユー
ブ、１Ｂ……ピストン、１Ｃ……ピストンロツド
、１Ｄ，１Ｅ……油口、１Ｆ……圧力室、２……
流量制御装置、３……ボデイ、４……螺子孔、４
′……雌螺子部、５……通路孔、６……フイツテ
イング、７……Ｏリング、８……通路孔、９……
アダプタ、９Ａ……雄螺子部、９Ｂ……頭部、９
Ｃ……凹溝、１０……Ｏリング、１１……ニード
ル孔、１２……段部（当り面）、１３……螺子孔
、１４……ニードル弁（絞り弁）、１４Ａ……小
径部、１４Ｂ……雄螺子部、１５……段部（スト
ツパ）、１６……凹溝、１７……Ｏリング、１８
……六角穴、１９……ロツクナツト、２０……ア
ダプタ、２１……ニードル孔、２２……雌螺子部
、２３……ニードル弁（絞り弁）、２３Ａ……雄
螺子部、２４……ロツクナツト、２６……Ｏリン
グ、２７……凹溝、２８……スナツプリング（ス
トツパ）、２９……当り面。 1 to 4 are drawings showing a first embodiment, and FIG. 1 is a part of a hydraulic cylinder equipped with a flow rate control device having a structure for preventing a throttle valve from falling off according to the present invention. 2 is a side view of the same, FIG. 3 is a sectional view of the flow rate control device, and FIG. 4 is a sectional view of the same flow rate control device in its operating state. 5 and 6 are drawings showing the second embodiment, in which FIG. 5 is a sectional view of the flow rate control device, and FIG. 6 is a sectional view showing the operating state of the flow rate control device. Further, FIG. 7 is a sectional view showing a conventional flow rate control device. 1... Hydraulic cylinder, 1A... Cylinder tube, 1B... Piston, 1C... Piston rod, 1D, 1E... Oil port, 1F... Pressure chamber, 2...
Flow rate control device, 3...Body, 4...Screw hole, 4
'... Female thread, 5... Passage hole, 6... Fitting, 7... O-ring, 8... Passage hole, 9...
Adapter, 9A...male thread, 9B...head, 9
C... Concave groove, 10... O-ring, 11... Needle hole, 12... Step part (contact surface), 13... Screw hole, 14... Needle valve (throttle valve), 14A... Small diameter part, 14B...Male thread part, 15...Step part (stopper), 16...Concave groove, 17...O ring, 18
... Hexagonal hole, 19 ... Lock nut, 20 ... Adapter, 21 ... Needle hole, 22 ... Female thread part, 23 ... Needle valve (throttle valve), 23A ... Male thread part, 24 ... Lock nut, 26...O-ring, 27...concave groove, 28...snat spring (stopper), 29...abutment surface.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

ボデイ側に穿設する通路孔と対向させて絞り弁
を進退自在に螺合させて成る油圧シリンダの流量
制御装置に於いて、同絞り弁にストツパを設ける
一方、ボデイ側にはストツパと対面させて同スト
ツパの当り面を設け、絞り弁の後退移動を介して
上記ストツパを当り面に対して当接させることが
可能な如く設けて成る油圧シリンダの流量制御装
置に於ける絞り弁の脱落防止構造。 In a flow control device for a hydraulic cylinder in which a throttle valve is screwed together so as to move forward and backward while facing a passage hole bored on the body side, the throttle valve is provided with a stopper, while the throttle valve is provided with a stopper facing the stopper on the body side. Preventing a throttle valve from falling off in a flow rate control device for a hydraulic cylinder, which is provided with a contact surface for the stopper, and is provided in such a way that the stopper can be brought into contact with the contact surface through the backward movement of the throttle valve. structure.