JPH01116296U

JPH01116296U -

Info

Publication number: JPH01116296U
Application number: JP1193688U
Authority: JP
Priority date: 1988-01-30
Filing date: 1988-01-30
Publication date: 1989-08-04
Also published as: JPH0314635Y2

Description

[Brief explanation of the drawing]

第１図〜第５図は本考案の実施例を示し、第１
図は第１実施例を示す接続解除状態の油圧回路用
短絡弁付セルフシールカツプリングの縦断正面図
、第２図は接続状態の油圧回路用短絡弁付セルフ
シールカツプリングの縦断正面図、第３図は同セ
ルフシールカツプリングを使用した油圧概略系統
図、第４図は第２実施例を示す油圧回路用短絡弁
付セルフシールカツプリングの一部切欠正面図、
第５図は同カツプリングの一部切欠側面図、第６
図は接続解除状態の従来技術１を示す第１図相当
図、第７図は接続状態の従来技術１を示す第２図
相当図、第８図は接続解除状態の従来技術２を示
す第１図相当図、第９図は接続状態の従来技術２
を示す第２図相当図である。１……カツプリング本体、２……導入側通路、
３……導出側通路、４……２の出口側部分、５…
…３の入口側部分、６……自封弁、７……自封弁
体、８……閉弁用押圧手段、１０……短絡通路、
１１……短絡弁、１２……短絡弁体、１３……開
弁用押圧手段、１４……自封弁口、１５……短絡
弁口、１６……筒型弁体、１７……弁体押し出し
用バネ、２１……筒型弁室、２２……区画筒、２
３……通路端壁。 1 to 5 show embodiments of the present invention.
The figure is a longitudinal sectional front view of a self-sealing coupling with a short-circuit valve for a hydraulic circuit in a disconnected state showing the first embodiment, and FIG. 2 is a longitudinal sectional front view of the self-sealing coupling with a short-circuit valve for a hydraulic circuit in a connected state. Figure 3 is a schematic hydraulic system diagram using the same self-sealing coupling, and Figure 4 is a partially cutaway front view of a self-sealing coupling with a short-circuit valve for hydraulic circuits showing the second embodiment.
Figure 5 is a partially cutaway side view of the same coupling;
The figure is a diagram equivalent to FIG. 1 showing the prior art 1 in a disconnected state, FIG. 7 is a diagram equivalent to FIG. 2 showing the prior art 1 in a connected state, and FIG. 8 is a diagram equivalent to FIG. Fig. 9 shows the connected state of conventional technology 2.
FIG. 2 is a diagram corresponding to FIG. 1...Coupling main body, 2...Introduction side passage,
3... Outlet side passage, 4... Exit side portion of 2, 5...
...Inlet side portion of 3, 6...Self-sealing valve, 7...Self-sealing valve body, 8...Valve closing pressing means, 10...Short circuit passage,
11...Short circuit valve, 12...Short circuit valve body, 13...Press means for valve opening, 14...Self-sealing valve port, 15...Short circuit valve port, 16...Cylindrical valve body, 17...Valve body extrusion spring, 21...cylindrical valve chamber, 22...divided cylinder, 2
3...Aisle end wall.

Claims

[Claims for Utility Model Registration] An inlet side passage 2 and an outlet side passage 3 are provided in the coupling body 1 independently from each other, and an outlet side portion 4 of the inlet side passage 2 and an inlet side portion 5 of the outlet side passage 3 are provided. Self-sealing valves 6, 6 are provided respectively, and the self-sealing bodies 7, 7 of each self-sealing valve 6, 6 are pushed outward by each valve-closing pressing means 8 to close each self-sealing valve port 14, and the self-sealing valves 6, 6 are closed by an external force. It is configured to be pushed back inward to open the self-sealing valve port 14, short-circuit the middle part of the inlet side passage 2 and the middle part of the outlet side passage 3 with the short-circuit passage 10, and open and close the short-circuit passage 10 with the short-circuit valve 11. The short-circuit valve 11 has a hydraulic pressure configured such that the short-circuit valve body 12 is pushed back outward by the valve-opening pressing means 13 to open the short-circuit valve port 15, and is also pushed back inward by an external force to close it. In a self-sealing coupling with a short-circuit valve for a circuit, a cylindrical valve chamber 21 is formed on the outer periphery of at least one of the inlet-side passage 2 and the outlet-side passage 3 with a partition cylinder 22, and the at least one passage is The outward end of the partition tube 22 is closed with a passage end wall 23, and a self-sealing valve port 14 is opened on the outer circumferential surface of the partition tube 22, and a short-circuit valve port 15 is opened on the inner side of the outer peripheral surface of the partition tube 22. The valve body 16 is pushed outward by the valve body pushing spring 17 and fitted into the cylindrical valve chamber 21 in a sealing and slidable manner, and the self-sealing valve body 7 and the short-circuit valve body 12
and the cylindrical valve body 16, and the valve closing pressing means 8 and the valve opening pressing means 13 are constituted by the valve body pushing spring 17, respectively, as dual-purpose parts, and the cylindrical valve body 16 is configured such that: In the disconnection state where the valve body is pushed outward by the spring 17 for pushing out the valve body, the self-sealing valve port 14 is closed and the short circuit valve port 15 is opened to open the short circuit passage 10, whereas the valve body is pushed inward by external force. In the connected state, the self-sealing valve port 14 is opened and the short-circuit valve port 15 is closed to open the short-circuit passage 1.
A self-sealing coupling with a short-circuit valve for a hydraulic circuit, characterized in that it is configured to shut off 0.