JPH0519677Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Field of industrial application] This invention is designed to prevent vibrations and vibrations in fluid cylinders during earthquakes or unexpected
This relates to an automatic fluid supply stop device that automatically stops fluid supply when an impact or the like is applied.

[Conventional technology]

In the past, various types of automatic fluid supply stop devices with anti-vibration devices have been devised, such as the one shown in Japanese Utility Model Application Publication No. 52-61539, but the common feature of these devices is that they have a complicated structure and cannot be mass-produced. Moreover, it feels like it is a step further in terms of functionality, and the current situation is that it has not been commercialized and is not actually used.

[Problem that the invention attempts to solve]

The technical problem of the present invention is to provide an automatic fluid supply stop device that solves these drawbacks and is functionally excellent and can be mass-produced.

[Means for solving problems]

It is provided in the middle of a fluid hose 3 that connects the fluid cylinder 1 and the fluid consumption device 2, and connects the fluid hose 3b on the fluid consumption device 2 side to the fluid supply body a to which the fluid hose 3a on the fluid cylinder 1 side is connected. This invention relates to an automatic fluid supply stop device characterized in that connected fluid delivery bodies b are detachably connected, and the structure of the fluid supply body a and the structure of the fluid delivery body b are respectively formed as shown below. .

- Structure of fluid supply body a Ball receiving holes 7 are bored at regular intervals on the outer periphery of the tip of the connecting cylinder 6, and engaging balls 8 are fitted into these ball receiving holes 7, and the engaging balls 8 are pressed down. A slide tube 9 that protrudes and holds the engaging ball 8 inward from the ball receiving hole 7 is fitted onto the tip of the connecting tube 6, and a spring 1 is inserted between the slide tube 9 and the connecting tube 6.
0, and a notch extension 11 is provided at the tip of the slide tube 9.
A ball receiving hole closing portion 9' is provided on the inner circumferential surface of the slide cylinder 9 and the position where the ball receiving hole 7 contacts in the normal state, and a packing 13 with a valve hole 34 is provided approximately at the center of the connecting cylinder 6. A hose attachment tube 15 having a hose attachment portion 14 to which a fluid hose 3a is attached is connected to the base end of the connection tube 6, and a valve storage chamber is provided inside the tip of the hose attachment tube 15. 16
A spring 17 is formed in this valve housing chamber 16.
The on-off valve 18 is pressed against the packing 13 by
An on-off valve 1 is provided at the center of the tip surface of this on-off valve 18.
A structure in which a locking plate 19 that presses the valve 8 is provided in a protruding manner, and the tip of the locking plate 19 is made to protrude from the valve hole 34.

- Structure of fluid delivery body b Main cylinder 2 with a spring stopper 36 on the outer peripheral surface of the proximal end and a spring stopper 37 on the inner peripheral surface near the proximal end.
Ball receiving holes 21 are bored at regular intervals on the outer periphery near the tip of the ball 0, and engagement balls 22 are inserted into the ball receiving holes 21
The slide cylinder 23 is fitted on the outer periphery of this main cylinder 20.
The spring 24 is fitted onto the main cylinder 20, and the spring 24 is clamped between the spring stopper 36 and the spring stopper step 40 provided on the inner circumferential surface of the slide cylinder 23. A ball receiving hole closing portion 2 is provided on the inner peripheral surface and at a position where the ball receiving hole 21 abuts.
3', an engagement groove 33 is provided at a position that matches the ball receiving hole 21 when the slide cylinder 23 is slid toward the fluid hose 3b against the spring 24, and a fluid supply body is provided at the tip of the main cylinder 20. Connecting tube 6 of a
A connecting pipe 26 is fitted into the interior and the distal end surface 25 presses the locking plate 19 of the on-off valve 18. A connecting pipe 26 is attached to the connecting pipe 26, and the engaging ball 8 of the connecting cylinder 6 is engaged with the outer periphery of the connecting pipe 26 in the middle. A hose attachment tube 29 is fitted into the main tube 20, which has a hose attachment portion 28 with a fluid hose 3b attached to the base end thereof, and a spring stopper step 38 formed near the tip end, with a fitting groove 35 surrounding the main tube 20. A spring 30 is fitted into the hose mounting tube 29 and the spring 30 is clamped between the spring stopper step 38 and the spring stopper 37 to form a ball receiving hole closing portion 39 on the outer periphery near the tip of the hose attachment tube 29 in the normal state. A ball escape slope portion 31 for pushing the engaging ball 22 into the ball receiving hole 21 is formed on the tip side of the ball receiving hole closing portion 39.

[Effect]

The slide tube 9 of the fluid supply body a is connected to the spring 10.
The main cylinder 20 of the fluid delivery body b is pushed into the fluid hose 3b side against the spring 24, and the engagement ball 22 is engaged with the engagement groove 33. Align the hose mounting tube 2
The connecting tube 26 is held in the protruding state by holding the engaging ball 22 in the engaged state within the engaging ball 22 and the engaging groove 33 by the ball receiving hole closing portion 39 of 9. Slide tube 9 fitted inside
When it is returned to its original position by the restoring force of the spring 10, the fluid supply body a and the fluid delivery body b are connected as shown in FIG. In this normal state, the distal end surface 25 of the connecting pipe 26 presses the locking plate 19 of the on-off valve 18, so the on-off valve 18 separates from the packing 13 due to the contraction of the spring 17, and the valve hole 34 of the packing 13 opens, allowing fluid flow. Fluid is supplied from the hose 3a to the fluid hose 3b side via the fluid supply body a and the fluid delivery body b.

When the fluid hose 3a and the fluid hose 3b are pulled in opposite directions, the spring 30 contracts.
The hose mounting tube 29 slides toward the fluid hose 3b with respect to the main tube 20, and the ball relief slope portion 31 moves toward the base of the main tube 20, so that the ball receiving hole 21.
The engagement ball 22 that was engaged with the engagement groove 33 falls inward and comes off the ball receiving hole 21 and the engagement groove 33. At that moment, the slide cylinder 23 is pushed by the spring 24 as shown in FIG. Projects toward the hose 3a side.

This protruding operation of the slide tube 23 pushes the slide tube 9 toward the fluid hose 3a, allowing the engagement ball 8 to move outward, so that the fluid delivery body b separates from the fluid supply body a.

If the fluid supply body a and the fluid delivery body b separate, the fifth
As shown in the figure, since the pressure of the distal end surface 25 of the connecting pipe 26 against the locking plate 19 is released, the on-off valve 18 is returned by the spring 17, and the valve hole 3 of the gasket 13 is
4 is closed, and the fluid is cut off at the fluid supply body a.

〔Example〕

The drawing shows the case where the present product A is used for gas supply, where a gas cylinder is used as the fluid cylinder 1 and a gas stove is used as the fluid consumption device 2.

To explain the fluid supply body a, ball receiving holes 7 are bored at regular intervals on the outer periphery of the tip of the connecting cylinder 6, and engaging balls 8 are fitted into the ball receiving holes 7. A slide tube 9 that presses down and holds the engaging ball 8 protruding inward from the ball receiving hole 7 is fitted onto the tip of the connecting tube 6, and a spring 10 provided between the slide tube 9 and the connecting tube 6 is applied. When the slide tube 9 is pressed toward the fluid hose 3a side, the engaging ball 8 is provided so that it can be pushed out and retracted by the expanded notch portion 11.
Hose attachment part 1 in which fluid hose 3a is attached to the base end of connecting cylinder 6, and a locking stepped part 12 is provided by abutting 3.
4, and an on-off valve 18 which is pressed against the gasket 13 by a spring 17 is provided in the valve storage chamber 16 in the hose mounting pipe 15 as the cut-off valve mechanism 5. The figure shows a structure in which a locking plate 19 for opening the on-off valve 18 is protruded from the center of the tip end surface.

To explain the fluid delivery body b, ball receiving holes 21 are bored at regular intervals on the outer periphery of the main cylinder 20 near the tip, and engagement balls 22 are fitted into the ball receiving holes 21, and the outer periphery of the main cylinder 20 is When the slide tube 23 is fitted into the slide tube 23 and the slide tube 23 is pressed toward the fluid hose 3b against the spring 24 provided between the slide tube 23 and the main tube 20, the engagement ball 22 is engaged. A matching groove 33 is provided on the inner peripheral surface of the slide cylinder 23, and a connecting cylinder 6 of the fluid supply body a is provided at the tip of the main cylinder 20.
The connecting tube 26 is inserted into the connecting tube 26 and the distal end surface 25 presses the locking plate 19 of the on-off valve 18, and the engaging ball 8 of the connecting tube 6 is engaged with the middle outer circumference of the connecting tube 26. A hose attachment tube 29 is fitted into the main tube 20, which has an engagement groove 35 surrounding it, a gasket 27 provided on the rear end surface of the connecting tube 26, and a hose attachment portion 28 with a fluid hose 3b attached thereto. Tube 29
A spring 30 is provided between the hose mounting tube 29 and the main cylinder 20, a ball receiving hole closing part 39 is provided at the distal end of the hose mounting cylinder 29, and a ball escape slope part 31 is formed on the distal end side of the ball receiving hole closing part 39. The figure shows a case where this structure is adopted.

Incidentally, adjustment is made in advance so that the separation of the fluid supply body a and the fluid delivery body b is reliably performed using a force greater than a certain level.

Reference numeral 4 is a fluid supply passage, and 41 is a ring.

[Effect of idea]

Since the present invention is configured as described above, there is no possibility that the fluid hose 3a and the fluid hose 3b will be pulled in opposite directions due to an earthquake, the fluid cylinder 1 falling down unexpectedly, or the fluid consumption device 2 falling from the mounting table. When force is applied, the two are easily separated and the fluid flow is cut off, and the present invention provides an automatic fluid supply stop device that has a simple structure, can be mass-produced, and exhibits excellent effects.

[Brief explanation of the drawing]

Figure 1 is a front view of this device, Figure 2 is an exploded perspective view of the main parts, Figures 3, 4, and 5 are front sectional views explaining the operation of the automatic fluid supply stop device, and Figure 6 is the shutoff valve mechanism. FIG. a...Fluid supply body, b...Fluid delivery body, 1...
Fluid cylinder, 2...Fluid consumption appliance, 3, 3a, 3
b...Fluid hose, 6...Connection tube, 7, 21...
Ball receiving hole, 8, 22... Engagement ball, 9, 23
...Slide tube, 9'...Ball receiving hole closing part, 1
0... Spring, 11... Notch extension, 12...
... Locking step, 13 ... Packing, 14 ... Hose mounting section, 15 ... Hose mounting tube, 16 ... Valve storage chamber, 17, 24, 30 ... Spring, 18 ...
Opening/closing valve, 19...locking plate, 20...main cylinder, 25...
... Tip surface, 26 ... Connection pipe, 28 ... Hose mounting part, 29 ... Hose mounting tube, 31 ... Ball escape slope part, 33, 35 ... Engagement groove, 34 ... Valve hole,
36, 37... Spring stop, 38, 40...
Spring stopper step, 39...Ball receiving hole closing part.

Claims (1)

[Scope of Claim for Utility Model Registration] A device provided in the middle of a fluid hose 3 connecting a fluid cylinder 1 and a fluid consuming device 2, and which is provided in the middle of a fluid hose 3 connecting a fluid cylinder 1 side to a fluid supply body a connected to a fluid hose 3a on the fluid cylinder 1 side. An automatic fluid system characterized in that a fluid delivery body b connected to a fluid hose 3b on the side of an instrument 2 is detachably connected, and the structure of the fluid supply body a and the structure of the fluid delivery body b are respectively formed as shown below. Supply stop device. Note: Structure of fluid supply body a Ball receiving holes 7 are bored at regular intervals on the outer periphery of the tip of the connecting cylinder 6, and engaging balls 8 are fitted into these ball receiving holes 7. A slide tube 9 that presses down and holds the engaging ball 8 protruding inward from the ball receiving hole 7 is fitted onto the tip of the connecting tube 6, and a spring 1 is inserted between the slide tube 9 and the connecting tube 6.
0, and a notch extension 11 is provided at the tip of the slide tube 9.
A ball receiving hole closing portion 9' is provided on the inner circumferential surface of the slide cylinder 9 and the position where the ball receiving hole 7 contacts in the normal state, and a packing 13 with a valve hole 34 is provided approximately at the center of the connecting cylinder 6. A hose attachment tube 15 having a hose attachment portion 14 to which a fluid hose 3a is attached is connected to the base end of the connection tube 6, and a valve storage chamber is provided inside the tip of the hose attachment tube 15. 16
A spring 17 is formed in this valve housing chamber 16.
The on-off valve 18 is pressed against the packing 13 by
An on-off valve 1 is provided at the center of the tip surface of this on-off valve 18.
A structure in which a locking plate 19 that presses the valve 8 is provided in a protruding manner, and the tip of the locking plate 19 is made to protrude from the valve hole 34. - Structure of fluid delivery body b Main cylinder 2 with a spring stopper 36 on the outer peripheral surface of the proximal end and a spring stopper 37 on the inner peripheral surface near the proximal end.
Ball receiving holes 21 are bored at regular intervals on the outer periphery near the tip of the ball 0, and engagement balls 22 are inserted into the ball receiving holes 21
The slide cylinder 23 is fitted on the outer periphery of this main cylinder 20.
The spring 24 is fitted onto the main cylinder 20, and the spring 24 is clamped between the spring stopper 36 and the spring stopper step 40 provided on the inner circumferential surface of the slide cylinder 23. A ball receiving hole closing portion 2 is provided on the inner peripheral surface and at a position where the ball receiving hole 21 abuts.
3', an engagement groove 33 is provided at a position that matches the ball receiving hole 21 when the slide cylinder 23 is slid toward the fluid hose 3b against the spring 24, and a fluid supply body is provided at the tip of the main cylinder 20. Connecting tube 6 of a
A connecting pipe 26 is fitted into the interior and the distal end surface 25 presses the locking plate 19 of the on-off valve 18. A connecting pipe 26 is attached to the connecting pipe 26, and the engaging ball 8 of the connecting cylinder 6 is engaged with the outer periphery of the connecting pipe 26 in the middle. A hose attachment tube 29 is fitted into the main tube 20, which has a hose attachment portion 28 with a fluid hose 3b attached to the base end thereof, and a spring stopper step 38 formed near the tip end, with a fitting groove 35 surrounding the main tube 20. A spring 30 is fitted into the hose mounting tube 29 and the spring 30 is clamped between the spring stopper step 38 and the spring stopper 37 to form a ball receiving hole closing portion 39 on the outer periphery near the tip of the hose attachment tube 29 in the normal state. A ball escape slope portion 31 for pushing the engaging ball 22 into the ball receiving hole 21 is formed on the tip side of the ball receiving hole closing portion 39.