JPH0265791U - - Google Patents

Description

[Brief explanation of drawings]

Figures 1 to 3 show embodiments of the present invention;
The figure is a longitudinal sectional front view of the self-sealing coupling with a short-circuit passage for hydraulic circuits showing the connected valve open state, Fig. 2 is a longitudinal sectional front view of the same self-sealing coupling showing the self-sealing closed valve state, and Fig. 3 is the same self-sealing coupling. A schematic hydraulic system diagram using a coupling ring, Fig. 4 is a diagram equivalent to Fig. 2 showing conventional technology 1 in a disconnected state, Fig. 5 is a diagram equivalent to Fig. 1 showing conventional technology 1 in a connected state, and Fig. 6 7 is a diagram equivalent to FIG. 2 showing prior art 2 in a disconnected state, and FIG. 7 is a diagram equivalent to FIG. 1 showing prior art 2 in a connected state.
It is a figure equivalent figure. 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,
12... Inner peripheral surface of 7, 14... Self-sealing valve port, 15...
... Short-circuit port, 20 ... Cylinder, 21 ... End face of 20.

Claims (1)

[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 respectively provided, and each self-sealing valve body 7 of each self-sealing valve 6 is pushed outward by each valve-closing pressing means 8, and each self-sealing valve port 14 is
The valve is configured to be switchable between a self-sealing closed state in which the self-sealing valve is shut off from the outside and closed, and a connected valve open state in which the self-sealing valve port 14 is opened by being pushed back inward by an external force, and the inlet side passage 2 and outlet side passage 3 are connected to each other. Short circuit path 10
In a self-sealing coupling with a short-circuit passage for a hydraulic circuit configured to be switchable between a short-circuit state in which they communicate with each other and a short-circuit released state in which they do not communicate with each other through Each cylindrical body 20 has a cylindrical hole that protrudes in a cantilever shape from the cylindrical body 20. The end face of each cylindrical body 20 near the tip is closed, and a self-sealing valve port 14 is opened on the circumferential surface of the cylindrical body 20. It is formed into a cylindrical shape and slidably fitted onto each cylinder body 20, and each short-circuit port 15 is formed in the middle of the inner peripheral surface of each self-sealing valve body 7, and both short-circuit ports 15 are communicated through a short-circuit passage 10. However, in the self-sealing valve state in which the self-sealing valve body 7 closes the outer periphery of the self-sealing valve port 14, each short-circuit port 15 closes the outer periphery of the self-sealing valve port 14.
, the inlet side passage 2 and the outlet side passage 3 are in a short-circuit state in which they communicate through each self-sealing valve port 14 , each short-circuit port 15 and the short-circuit passage 10 , and the self-sealing valve body 7 is connected to the outer periphery of the self-sealing valve port 14 . A self-sealing coupling with a short-circuit passage for a hydraulic circuit, characterized in that in a connection valve open state in which the section is opened, each short-circuit port 15 is in a short-circuit released state in which it no longer communicates with each self-sealing valve port 14.