JPS6014072Y2 - gaskotok - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a gas cock used as a gas main cock (meter cock), and proposes a new locking mechanism for the gas cock.

Since gas main valves are often installed outdoors, there is a risk that they may be opened or closed by mischief.

Therefore, in order to prevent mischief or to prevent accidental opening or closing, for example, in the main valve described in Publication of Utility Model Publication No. 52-49462, a loading rod 13 is attached to a hidden part of the handle 6, and this loading rod 13 can be moved with a fingertip. A configuration is adopted in which the handle 6 cannot be rotated unless operated.

However, in the case of the above-mentioned well-known main stopcock, there is a fear that the stacking rod 13 will be noticed when the handle 6 is touched, and the safety mechanism cannot be said to be perfect.

In view of this, the present invention is designed so that the safety mechanism (lock mechanism) cannot be released without using a special tool.

In addition, as in the case of the above-mentioned known example, in the case of conventional main valves, the stopper mechanism structure or sealing mechanism that regulates the rotation range of the handle (closer) is constructed separately. However, there was a drawback that the number of parts increased.

From this point of view, the present invention proposes a locking mechanism that combines a safety mechanism, a stopper mechanism, and a sealing mechanism.The structure is such that a tapered surface is formed perpendicular to the internal gas passage, and 1800 mm is formed on the outer circumferential wall of the upper opening. A gas cock body comprising a guide rib and a drop groove and a stopper formed at both ends of the guide rib, a closure fitted to a tapered surface within the gas cock body, and a fitting portion for the closure on the lower surface. an inner diameter screw hole and a locking member installation hole having a smaller diameter than the inner diameter screw hole following the inside diameter screw hole, and forming the locking member installation hole in a direction perpendicular to the locking member installation hole at a position facing the guide rib on the lower surface of the handle side; a handle comprising a locking screw hole formed in the inner diameter screw hole; a holding member comprising a screw on the outer periphery to be screwed into the internal diameter screw hole and a small diameter hole in the center; a large diameter portion that fits within the holding member; Continuing below the part, there is a small diameter part that fits into the wide diameter hole, and a parallel surface is further formed below this small diameter part, and a locking groove and a closure lock deeper than this locking groove are formed at a symmetrical position at the upper end of the large diameter part. A lock member having a locking groove formed therein, a locking screw having a fitting portion formed at its tip that can be fitted into the locking groove and the closing locking groove, and screwed into the locking screw hole, and a locking member formed in the locking member installation hole. The coil spring that is built into the lock member and keeps it springing downward (in the direction of the guide rib), and the gas cock for the main stopper.

An embodiment of the present invention will be described below in detail based on the accompanying drawings. Fig. 1 is an exploded perspective view of a gas cock according to the present invention, and 1 is a tapered surface 2 perpendicular to the internal gas passage 6.
1800 guide ribs 7 are formed on the outer peripheral wall of the upper mouth, and depression grooves 8, 8' are formed at both ends of the guide ribs 7.
and stopper9. The gas cock body is formed by 9', 3 is a handle engagement edge, and 4 and 5 are handle incorporating grooves.

Reference numeral 10 denotes a closure that is fitted into the tapered surface 2 within the gas cock body 1, and has engaging legs 11 protruding from the upper surface.

12 is a spring for pressing the closure 10 against the tapered surface 2.

13 is a rotating part 1 inserted into the upper opening of the gas cock body 1
A grease groove 15 is formed on the bottom surface of the engagement leg 1 of the closing member 10.
The cock body 1 forms a fitting part 17 into which the cock body 1 is fitted.
Engagement ribs 16, 16' that engage with the side handle engagement edges 3
It is a handle consisting of a

18 is the lower surface of the handle 13' of the handle 13,
An inner diameter screw hole 18 is formed above the inner diameter screw hole 18, which is formed at a position facing the guide rib 7.
Subsequently, a locking member installation hole 19 having a smaller diameter than this inner diameter screw hole 18 is formed.

Reference numeral 20 indicates a lock screw hole formed in a direction perpendicular to the installation hole 19.

Reference numeral 21 designates a holding member having a screw 22 on its outer periphery which is screwed into the inner diameter screw hole 18, and a small diameter hole 23' continuing from the large diameter hole 23 formed in the center.

Reference numeral 24 denotes a locking member inserted into the locking member mounting hole 19 of the handle 13, and this locking member 24 is inserted into the large diameter hole 23 of the holding member and the locking member mounting hole 1.
9, a small diameter part 26 that continues below the large diameter part 25 and fits in the small diameter hole 23', and a rotation formed at the lower end of the parallel surface 27 formed below the small diameter part 26. A locking groove 29 formed at a symmetrical position at the upper end of the large diameter portion 25, and a closure locking groove 30 deeper than the locking groove 29.

31 has the locking groove 29 and the closure locking groove 30 at the tip.
This lock screw has a fitting portion 32 at its tip that can be freely fitted into the lock screw hole 20, and a screw 33 that is screwed into the lock screw hole 20, so that it cannot be rotated without a special tool.

Reference numeral 34 denotes a coil spring that resiliently repels the lock member 24 downward within the lock member installation hole 19.

The component structure according to the present invention consists of the above-mentioned structure, and to explain how to assemble it, first, the lock member 24 is assembled into the lock member installation hole 19 using the holding member 21, as shown in FIG. , press the coil spring 34 and push it all the way in, and hold it down with the lock screw 31 so that the rotation groove 28 (parallel surface 27) does not protrude from the surface of the handle 13.

In addition, a closure 1 is provided on the upper inner tapered surface 2 of the gas cock body 1.
0 is installed, and a spring 12 is installed in the center of the upper surface of the closure 10.
put on.

Next, the handle 13 incorporating the locking member 24 is transferred to the upper opening of the gas cock main body 1 in the opposite direction to the direction shown in FIG. Fit the engaging leg 11 of the 11 into the fitting part 17 and insert the engaging rib 16, 16' through the built-in groove 4.5, and then rotate the handle 13 by 180° to remove the engaging rib 16, 1.
6' is engaged with the engaging edge 3.

After completing the assembly of the handle 13, loosen the lock screw 31.

In this way, the locking member 24 is pushed downward by the coil spring 34, and the parallel surface 27 and the rotation groove 2
8 portions are exposed from the small diameter hole 23' of the holding member 21 and abut against the guide rib 7.

Also, at this time, the fitting portion 32 of the lock screw 31 is facing the closure locking groove 30, so the lock screw 31 is screwed in again to engage the fitting portion 32 within the closure locking groove 30.

FIG. 4 shows this state. The assembly is completed by the above, and hold the handle 13' of the handle 13 and
Rotation is possible in any direction by 0°, and when the handle 13 is rotated 90', the closure 10 is fully closed.

When the handle 13 is rotated by 90 degrees in either the left or right direction, the locking member 24 that has slid on the guide rib 7 is further projected downward by the coil spring 34 at the drop grooves 8, 8', and at the same time, the locking member 24 is pushed further downward by the coil spring 34 at the drop-in grooves 8, 8'. It corresponds to .9'.

As a result, the handle 13 cannot be rotated beyond 90'.

Also, even if an attempt is made to rotate in the opposite direction (opening direction), the parallel surface 27 of the locking member 24 will fall into the groove 8. Hitting the edge of 8',
cannot rotate.

Therefore, in order to rotate the handle 13 in the opening direction, push the parallel surface 27 portion of the locking member 24 against the coil spring 34 with your fingertip, and place it on the guide rib 7 again while letting it escape from the edges of the drop grooves 8, 8'. Operation is required.

Also, when closing the handle 13 and locking the handle 13 with the lock member 24 engaged in the drop-in groove 8° 8', first release the lock screw 31 and remove the lock member 24.
is rotated 1800 times so that the lock groove 29 faces the fitting part 32 of the lock screw 31, and the lock screw 31 is screwed in again to fit the fitting part 32 into the lock groove 29.

In this way, as shown in FIG.
Since the lock screw 31 is shallow, the fitting portion 32 of the lock screw 31 prevents the lock member 24 from rising, making it impossible to push in the parallel surface.

As a result, the handle 13 becomes locked, and if the configuration is such that a special tool must be used to rotate the lock screw 31, the handle 13 will not be unlocked unless the special tool is used. It performs the same function as a conventional seal.

As described above, the present invention includes the lock member 24 and the lock screw 3.
1, guide rib 7, drop groove 8゜8', stopper 9
, 9' can lock the handle, restrict the rotation of the handle 13, and seal it, so the number of parts is reduced compared to the conventional main stopper in which these three mechanisms are configured separately.

Therefore, the structure and assembly are simple, and it is possible to provide an inexpensive main stopcock.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of the gas cock according to the present invention, Fig. 2 is a front view of the assembled state, Fig. 3 is a plan view, Fig. 4 is a sectional view taken along line A-A, and Fig. 5 is a sealed state. FIG. 6 is a cross-sectional view showing the relationship between the lock member and the lock screw during assembly and disassembly. 1... Gas cock body, 7... Guide rib, 8.8'... Drop groove, 9,9'...
...Stopper, 13...Handle, 18...
...Inner diameter screw hole, 19...Lock member installation hole, 21...Press member, 24...
Lock member, 31...Lock screw.

Claims (1)

[Claims for Utility Model Registration] Features a tapered surface perpendicular to the internal gas passage,
A gas cock body comprising a 180° guide rib formed on the outer circumferential wall of the upper mouth, and a drop groove and a stopper formed at both ends of the guide rib, a closure fitted to a tapered surface within the gas cock body, and a closure on the lower surface. The fitting part with the child is shaped, and the lower surface on the handle side,
At a position facing the idle lib, an internal screw hole and a locking member installation hole having a smaller diameter than the internal screw hole following the internal screw hole are formed, and a locking screw hole is formed in a direction perpendicular to the locking member installation hole. a handle consisting of a handle; a holding member having a screw on its outer periphery that is screwed into the internal threaded hole and a small diameter hole in the center; a large diameter portion that fits within the holding member; A small diameter part that fits in the hole, a parallel surface below this small diameter part, and a locking groove and a closure locking groove deeper than this locking groove are formed at symmetrical positions at the upper end of the large diameter part. a locking member having a fitting portion at its tip that can be freely fitted into the locking groove and the closure locking groove, and a locking screw that is screwed into the locking screw hole; A gas cock consisting of a coil spring that constantly repulses the member downward (in the direction of the guide ribs).