JPS602069U

JPS602069U - Check valve with opening mechanism

Info

Publication number: JPS602069U
Application number: JP9356883U
Authority: JP
Inventors: 米沢　慶多朗
Original assignee: 相生精機株式会社
Priority date: 1983-06-17
Filing date: 1983-06-17
Publication date: 1985-01-09
Also published as: JPS6324304Y2

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

図面は本考案の実施例を示し、第１図は開弁機構付き逆
止弁を有するワークパレットの油圧系統図、第２図はワ
ークパレット及びパレット位置決め固定装置の斜視図、
第３図は上記逆止弁の縦断側面図、第４図は第３図のＩ
Ｖ−ＴＶ線断面図、第５図は第３図の■−Ｖ線断面図、
第６図は第４図■−ＶＩ線断部分図、第７図及び第８図
は各々変形例のワークパレットの部分油圧系統図である
。１“・・・弁箱、１９・・・弁室、１９ａ・・・入口、
２０・・・ロッド孔、２３・・・出口、２４・・・シリ
ンダ口、２６・・・弁体、２７・・・弁座、２８・・・
閉弁バネ、２９・・・開弁ロッド、２９Ａ・・・２９の
軸心、３０・・・操作軸、Ｘ・・・非開弁姿勢、Ｙ・・
・開弁姿勢、３０Ａ・・・３０の軸心、３１・・・開弁
カム面、３２・・・操作レバー、３５・・・姿勢保持手
段。The drawings show an embodiment of the present invention; Fig. 1 is a hydraulic system diagram of a work pallet having a check valve with a valve opening mechanism; Fig. 2 is a perspective view of a work pallet and a pallet positioning and fixing device;
Figure 3 is a vertical side view of the above check valve, and Figure 4 is I of Figure 3.
V-TV line sectional view, Figure 5 is the ■-V line sectional view of Figure 3,
FIG. 6 is a partial view taken along line 4--VI in FIG. 4, and FIGS. 7 and 8 are partial hydraulic system diagrams of modified work pallets. 1"...Valve box, 19...Valve chamber, 19a...Inlet,
20... Rod hole, 23... Outlet, 24... Cylinder port, 26... Valve body, 27... Valve seat, 28...
Valve closing spring, 29... Valve opening rod, 29A... Axis center of 29, 30... Operation axis, X... Valve non-opening position, Y...
- Valve opening posture, 30A... 30 axis center, 31... Valve opening cam surface, 32... Operation lever, 35... Attitude holding means.

Claims

[Scope of utility model registration request]

The valve chamber 19 and the rod hole 20 are provided in series in the valve box 1, and the inlet 19a of the valve chamber 19 is the pressure outlet/return port 21, and the valve chamber 19 is connected to the valve chamber 19.
The outlet 23 of the valve chamber 19 is connected to the cylinder port 24, the valve body 26 is inserted into the valve chamber 19, and the valve body 26 is closed with a valve seat 27 provided on the peripheral wall of the inlet 19a of the valve chamber 19 using a valve opening spring 28. The valve opening rod 29 is slidably and oil-tightly inserted into the force rod hole 20, and its tip end faces the inlet 19a of the valve chamber 19, and its base end faces the valve opening cam surface 31 of the operating shaft 30. The operation shaft 30 can be rotated and switched between the check position X and the valve opening position Y using the operation lever 32, and in the check position
9 so that the valve opening rod 29 does not press the valve body 26, and in the valve opening position Y, the valve opening cam surface 31 is moved away from the valve opening rod 29.
In the check valve with a valve opening mechanism configured to open the valve body 26 by pressing the valve body 26 with the valve opening rod 29 when brought close to the 9 side, when the operating shaft 30 is in the valve opening position Y, it is lightly locked by the posture holding means 35. The axial center 30A of the operating shaft 30 is made eccentric from the axial center 29A of the valve opening rod 29, and the operating shaft 30 is set in the valve opening position Y and the valve chamber 19 and the cylinder abutment 24 are filled with pressure oil. By pressing the valve opening cam surface 31 with the valve opening rod 29 by hydraulic pressure acting on the cross section of the valve rod 29, the operating shaft 30 is rotated against the locking action of the posture holding means 35 by the rotation moment based on the eccentricity. A check valve with a valve opening mechanism, characterized in that it is configured to automatically return from an open position Y to a check position X by moving the valve.