JPS5841423Y2 - gaskotok - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a self-returning gas cock that is used by being attached to the end of a pipe for city gas, etc.

Specifically, it relates to a gas cock that cannot be used when the bundle is in a half-opened state.

In the case of a gas cooker, the cooker is sometimes left half-open when cooking boiled dishes.

However, when used in this manner, there is a problem that in the case of a gas cock with a built-in fuse, the fuse does not operate.

Also, if the bundle rotates slightly for some reason and becomes half-open, it is very dangerous if you are not aware of this.

Conventionally, for the above-mentioned reasons, a gas cock that cannot be used when the bundle is half-open has been proposed in Japanese Utility Model Publication No. 47-40741.

In this conventional example, a spiral leaf spring is attached to the operating shaft of the bundle, and a locking plate and an unlocking plate are attached, and the locking plate is closed by the engagement relationship between a separately provided stopper and the locking plate and the unlocking plate. This is a mechanism that controls rotation, but because it uses a spiral leaf spring, the gas cock becomes larger, and because there is no rotation control mechanism on the center line of the operating shaft of the closure, the balance per rotation is biased to one side. There are drawbacks.

From this point of view, the purpose of the present invention is to propose a self-returning gas cock that is small in size and has a one-rotation mechanism that can be smoothly operated.

The structure of the present invention will be described in detail below. First, the gist of the structure is as follows.
A gas passage is formed in the lower horizontal direction, an upper opening for installing a plug is formed in the vertical direction of this gas passage, and a circumferential groove is formed in the upper part of the inner wall surface of the upper opening.

a cock body formed with a notch extending to the circumferential groove formed at a symmetrical position on the upper mouth edge; a stopper formed with a protrusion protruding from the upper surface that is incorporated into the upper mouth of the cock body to open and close a gas passage;
A spring is installed on the stopper, an engagement hole is provided in the center of the bottom surface of the stopper to engage the protrusion of the stopper, a rotating shaft is provided in the center of the top surface of the stopper, and a body is formed between the bottom surface and the top surface of the stopper. A return coil is wound around the body, the lower end of the return coil is engaged with a part of the side, the upper end is bent horizontally, and this bent part is projected counterclockwise into the part of the side. Engage with the provided pin and engage with the notch in the cock body,
At the upper end of the side, an edge with a slightly smaller diameter is integrally protruded from the inner wall surface of the upper mouth of the cock body, and notches are formed in this edge at 90' intervals. A drive shaft having a fitting piece protruding from a symmetrical position in the center and rotatably fitting into the circumferential groove of the cock body, forming a rotation axis with the bundle having a parallel surface at the center of the upper surface. Then, a hole is made in the center having the same shape as the cross section of the rotating shaft and a parallel surface through which the rotating shaft passes, and upright pieces are provided protruding at symmetrical positions in the longitudinal direction (both ends) of the hole, and on the outer periphery of the upper surface. a guide having bulges formed at intervals of 90';
The horizontal protrusions of the cock body that are fitted with the notches protrude in symmetrical positions, and the elongated holes with the width that the upright pieces are loosely engaged with intersect at right angles in the center, and at the diagonal position planes where the protrusions intersect, the protrusions extend from the bottom surface. A control hole is provided with an inner diameter portion for sliding engagement, and fitting protrusions are provided on the outer periphery of the lower surface of the drive shaft at intervals of 90' to engage with the cutout portion of the drive shaft and have inclined portions in the counterclockwise direction. This gas cock is made up of a stopper, a coil spring that biases the stopper downward, and a bundle that has a fitting hole in the center of its lower surface into which a rotating shaft of a drive shaft fits.

The rotation of the bundle in the closing direction causes the drive shaft to rotate all the way, and due to the rotation of the drive shaft, the notch of the drive shaft and the inclined part of the fitting protrusion of the stopper slide against each other, and a lifting action is exerted on the stopper. The stopper rises against the coil spring, and as a result, the fitting protrusion separates from the notch of the drive shaft, and the drive shaft is returned by the return coil to close the stopper.

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

Figure 1 is an exploded perspective view of the gas cock according to the present invention.
1 forms a gas passage in the lower horizontal direction, and forms an upper opening 2 for plug installation in the vertical direction of this gas passage, and also forms a circumferential groove 3 in the upper part of the inner wall surface of this upper opening 2, so that the upper opening edge is symmetrical. A cock body formed with a notch 44' extending to the circumferential groove 3 at a position.

Reference numeral 5 indicates a plug which is incorporated into the upper opening 2 of the cock body 1 and has a protrusion 6 protruding from the upper surface for opening and closing the gas passage, 1 is a spring installed on the stopper 5, and 8 is a lower surface. An engagement hole 9 into which the protrusion of the stopper engages is provided in the center, and a rotating shaft 18 is provided protruding from the center of the top surface.

A body 10 is formed between the lower surface and the upper surface, a return coil 11 is wound around the body 10, the lower end 13 of this return coil 11 is engaged with a part of the side 10, and the upper end is bent in the horizontal direction. The bent portion 12 of the lever is rotated counterclockwise from the side 10.
The upper edge of the side 10 has an edge with a diameter slightly smaller than the inner wall surface of the upper mouth 2 of the cock body 1. 15 are integrally protruded, and this edge 15 is formed with notches 17, 17', 17" 17/// at 90' intervals, and the edge 15 is further provided with notches 17, 17', 17" 17.
At a symmetrical position located in the center of any two of the two pieces 29 is a fitting piece 1 which is rotatably fitted into the circumferential groove 3 of the cock body 1.
6. A drive shaft 1 formed by protruding 16' and forming a rotation axis 18 with a bundle having a parallel surface at the center of the upper surface.
9 has the same shape as the cross section of the rotating shaft 18 at the center, and this rotating shaft 1
A hole 20 having parallel surfaces 21 and 21' through which the 8 passes is bored, and upright pieces 22 and 22' are provided at symmetrical positions in the longitudinal direction (both ends) of the hole 20, respectively. The guide 28 formed with bulges 23, 23' and 23'' 2311 has horizontal protrusions 42 and 42' that fit into the notches 4 and 4' of the cock body 1 projected in symmetrical positions, and the raised portions in the center. A control in which elongated holes 30° and 30' with which the pieces 22 and 22' are loosely engaged intersect at right angles, and an inner diameter portion 40° 40' is formed at the diagonal plane where the bulges slide into contact from the lower surface. A hole 29 is provided, and a notch 17° 17'17", 1 of the drive shaft 8 is provided on the outer periphery of the lower surface.
In charge of 7m, 1 counterclockwise -floating direction, inclined part 44,444, 44〃, 44ill, 43 43, 43 "43 / //, 43 / / /, and formed at 90 'intervals. A stopper 46 is a coil spring that urges the stopper downward; 47 is a bundle having a fitting hole 48 in the center of the lower surface into which the rotating shaft 18 of the drive shaft 8 fits; 49 is a bundle between the bundle 47 and the drive shaft. This is a screw that integrally connects the rotary shaft 18 of 8.

Next, to explain the assembly order of the gas cock of the present invention, first, the plug 5 is inserted into the upper opening 2 of the cock body 1,
Place the spring 7 on top of this, and insert the protrusion 6 of the plug 5 into the engagement hole 9.
Align the fitting pieces 16, 16' of the drive shaft 8 with the notches 4, 4' from above and insert them into the upper opening 2 as shown in FIG. 4, and as shown in FIG.
At the position where 6' reaches the circumferential groove 3, turn it slightly to the left to engage the fitting pieces 16 and 16' with the circumferential groove 3.

Next, the guide 19 is placed through the hole 20 in alignment with the rotation axis 18 of the drive shaft 8, and the fitting protrusions 43, 43', 43'', 43'' of the stopper 28 are then fitted to the notch 17 of the drive shaft 8. ', 17", 11"'.

A. Align the horizontal protrusions 42, 42' with the notches 4, 4', and insert the upright pieces 22, 22' and the bulge 23°2 into the elongated holes 30 and 30'.
3'23"23" and place it on the guide 19.

9 Screw 49. The bundle 47 is fixed to the rotating shaft 18 of the drive shaft 8 using the hole 48 to complete the assembly.

Next, to explain its operation, when the bundle 47 is turned to the left, the drive shaft 8 rotates together with the guide 19 that is engaged with the rotation axis 18 of the drive shaft 8.
rotate together.

When the guide 19 rotates, these bulges 23, 23', 2
3".

23'' slides on the lower surface of the inner diameter portions 40, 40' of the stopper 28 and on the lower surface of the stopper 28 between the inner diameter portions 40, 40'.

As a result, bulges 23, 23'. 23" and 23#, the stopper 28 rises against the spring 46.

Due to this rise, the fitting protrusion 44 of the stopper 28
', 44'', 44''' are notches 17.17', 17'' of the drive shaft 8.
.

It comes off 17'7.

When the bundle 47 is rotated 90', the upright pieces 22, 22' of the guide 19 come into contact with the ends 41, 41' of the hole 30° 30', making further rotation impossible.

At this position bundle 47. When the drive shaft 8 stops, the fitting protrusions 43, 43', 43", 4 of the stopper 28
3# indicates notches 17 and 17' displaced by 90' in the drive shaft 8.

11'' and 17'' and are engaged, and the stopper 28 is pushed downward by the spring 46.

This state is shown in FIG. 1, and the cross section is shown in FIG. 3.

In this operation, the upper end 13 of the return coil 11 engages the lower edge of the notch 4 in the cock body 1.

Since the lower end 12 rotates together with the drive shaft 8,
Energy is stored in the return coil 11.

Even if energy is stored in the return coil 11, the drive shaft 8 does not return due to the above-mentioned fitting. When the bundle 47 is turned to the right, the fitting protrusions 43, 43 of the stopper 28
', 43" 43/// oblique part 44° 44', 44"
, 44''' are the notches 17, 17' of the drive shaft 8.
, 17'', and 17' slide against each other, and this action causes the drive shaft 8 to rise against the spring 46.

As a result, the engagement between the stopper 28 and the drive shaft 8 is released, and the drive shaft 8 is moved to the return coil 11.
Then, it rotated vigorously to the right, and at the position of 90' rotation, the upright piece 22°22' touched the end 41.41 of the elongated hole 20, 20'.
', and the fitting protrusions 43, 43', 43f', 43' are connected to the notches 17, 17', 17', 1 of the drive shaft 8.
7/// is fitted.

This state is shown in FIG. 6, and the cross section is shown in FIG. 2.

In addition. Elongated holes 30, 30 in hole 29 of stopper 28
The width of the guide 19 is set to be larger than the width of the upright pieces 22 and 22', and the guide 19 has enough room to rotate by a predetermined angle.
23/// is a stopper 28 while rotating by a predetermined angle.
Slide up the fitting protrusions 43, 43'.

43"43" and notch 17, 17.17" 17/
// is disengaged from the drive shaft 8 to allow the drive shaft 8 to rotate freely.

The present invention includes the drive shaft 8 and the return coil 11 as described above. Since the guide 19 and stopper 28 are configured to control the rotation of the stopper 5 (bundle 47), each component is located on the center axis of the stopper 5.

Therefore, increasing the size in the lateral direction can be prevented, and since the entire control mechanism of the stopper 5 is located on the central axis of the stopper 4, there is no bias in any direction.

Therefore, smooth rotation is possible.

Next, the present invention has bulges 23, 23' on the guide 19.

23" 23'" were installed in four locations at 90" intervals.

The stopper 28 does not tilt to one side.

rise horizontally.

Further, the stopper 28 and the drive shaft 8 have cutout portions 1717' provided at four locations.

tsu 17" 17" and fitting protrusion 43 43' 43".

F
j? Since they are fitted at 43'', rotating the bundle 47 ensures that the stopper 5 is fully opened or closed at the 90° position.

[Brief explanation of the drawing]

Figure 1 is an exploded perspective view of a gas cock embodying the present invention, Figure 2 is a sectional view with the valve closed, Figure 3 is a sectional view with the valve open, and Figure 4 shows the drive shaft attached to the cock body. Fig. 5 is a plan view of the assembled state, Fig. 6 is a plan view of the drive shaft, guide, and stopper with the stopper closed, and Fig. 7 is a plan view of the stopper with the stopper open. It is. 1...cock body, 5...stopper, 7...
... Spring, 8 ... Drive shaft, 19 ... Guide. 28...Stopper 46...Spring, 47...Bundle.

Claims (1)

[Claims for Utility Model Registration] A gas passage is formed in the lower horizontal direction, an upper opening for installing a plug is formed in the vertical direction of this gas passage, and a circumferential groove is formed in the upper part of the inner wall surface of the upper opening. A cock body having a notch extending to the circumferential groove formed at a symmetrical position on the edge. A stopper that is incorporated into the upper opening of the cock body and has a protrusion protruding from the upper surface for opening and closing a gas passage, and a spring that is installed on the stopper. A retaining hole is provided in the center of the lower surface in which the protrusion of the stopper engages, a rotating shaft is provided protruding in the center of the upper surface, a body is formed between the lower surface and the upper surface, and a return coil is wound around the body. A lower end of the return coil is engaged with a portion of the barrel. The upper end is bent horizontally, and this bent part is engaged with a pin protruding from a part of the body from the counterclockwise direction, and is also engaged with a notch in the cock body, so that the upper edge of the body is connected to the top of the cock body. An edge with a slightly smaller diameter protrudes integrally from the inner wall surface of the mouth, and notches are formed at 90' intervals on this edge, and the cock is located at a symmetrical position in the center of any two of the notches on the edge. A drive shaft having a protruding fitting piece that rotatably fits into a circumferential groove of a main body and forming a rotating shaft with a bundle having a parallel surface at the center of the upper surface, and a cross section of the rotating shaft at the center. A hole of the same shape and having a parallel surface through which the rotation axis passes is made, and upright pieces are provided protruding from symmetrical positions in the longitudinal direction (both ends) of the hole, and bulges are formed at 90° intervals on the outer periphery of the upper surface. A guide consisting of Horizontal protrusions that fit into the notches of the cock body are protruded in symmetrical positions, and elongated holes with a width in which the upright pieces are loosely engaged intersect in the center at right angles, and in the diagonal planes where the protrusions intersect, the bulges are located on the lower surface. A control hole is provided with an inner diameter that slides into the hole, and a control hole is provided on the outer periphery of the lower surface of the drive shaft, and fitting protrusions that engage with the notch of the drive shaft and have an inclined portion in the counterclockwise direction are provided at 90° intervals. With a stopper formed of. A coil spring forces this stopper downward. A bundle that has a fitting hole in the center of the bottom surface into which the rotating shaft of the drive shaft fits. A gas cock consisting of.