JPH0529432Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a gas tank (meter tank, main valve) that is used by being attached to a city gas supply pipe.

[Prior art and its problems] In a conventional gas tank called a meter cock or a main valve, an inner circumferential groove is provided in the mounting opening of the gas tank main body as a means for rotatably incorporating the handle into the mounting opening of the gas tank main body, and the handle is attached to the handle side. It is known that a screw is installed in the inner circumferential groove to engage with the inner circumferential groove.

For example, the gas kettle described in Publications No. 58-24059 and 58-24060 has a structure in which the handle and the gas kettle are assembled by engaging screws that radially project at equal angles from the handle side into the inner circumferential groove of the gas kock main body. It is.

However, in this known example, three screws are used, and during assembly, these three screws are turned in sequence to form and release the engagement relationship with the groove, so assembly and disassembly are troublesome. Moreover, since the number of parts is large, the production cost is high and there is a drawback.

[Purpose of the present invention] The purpose of the present invention is to propose a gas kettle that is easy to assemble and disassemble and can be manufactured at low cost.

[Structure of the present invention and its operation] The present invention proposes the following structure of a gas tank to achieve the above object.

A gas cock main body having a gas passage therein and formed with a taper for assembling a closure and a handle attachment opening in a direction perpendicular to the gas passage, and a closure incorporated into the taper; A handle comprising a body portion which is rotatably incorporated into the handle attachment opening of the gas kettle body, the handle having an engagement groove on its lower surface that engages with the engagement portion formed on the upper surface of the closure, and the gas kettle body. an inner circumferential groove formed in the mounting opening; a screw hole penetrating from a part of the inner circumferential groove to the outer circumference of the gas tank main body;
A through-hole is provided in the body of the handle at a position opposite to the inner circumferential groove on the gas tank body side, and a threaded inner end is inserted into the through-hole, and an outer end is inserted into the through-hole. the enlarged head fits within the outer peripheral surface of the body portion of the handle or is pushed out and protrudes;
a guide member configured to engage in an inner circumferential groove on the gas tank main body side; and an inner thread whose inner end side is inserted into the through-installation hole and into which the screw of the guide member can be screwed. a guide screw shaft whose head can be freely engaged in an inner circumferential groove on the side of the gas cock main body; a spring for applying an outward force to the guide member in the through-hole; A gas kettle comprising a closing screw that is screwed from the outside into a screw hole of the gas kettle main body to close the screw hole.

In the gas kettle mentioned above, the guide member, spring, and guide screw shaft are assembled in advance into the through-installation hole on the handle side, and the guide member, spring, and guide screw shaft are inserted into the installation opening of the gas kettle body, and a screwdriver or the like is turned from the outside through the screw hole. A power tool is inserted and the guide screw shaft is rotated, and this rotation causes the guide member to protrude in the radial direction, and its enlarged head is engaged with the inner circumferential groove on the side of the gas tank main body.

In addition, when disassembling the handle, rotate the guide screw shaft to move the guide member backward so that its enlarged head escapes into the through-installation hole, while pushing the guide screw shaft against the spring to remove the inner periphery. This is done by disengaging the groove.

[Embodiment and its operation] The figure shows an embodiment of the present invention, in which reference numeral 1 indicates a gas passage 2 that penetrates in the horizontal direction and a handle attachment opening 3 that is opened in a direction perpendicular to the gas passage 2. In the formed gas tank main body, numeral 4 is an inner circumferential groove provided in the mounting opening 3, and 5 is a screw hole provided penetrating outward from a part of the inner circumferential groove 4.

Reference numeral 6 designates a closure built into the taper 1a in the gas tank main body 1, and 7 designates an engaging portion.

8 is a handle, 9 is this body part, 10 is an engagement groove formed on the lower surface of the body part 9, the engagement part 7 of the closure 6 is engaged in this engagement groove 10, and the handle By rotating 8, the gas passage 2 can be opened and closed by the closure 6 by rotating together.

Reference numeral 11 designates a through-fitting hole that horizontally passes through the body portion 9 of the handle 8 and is provided at a position on the same level as the inner circumferential groove 4, and 12 represents a small diameter portion.

The inner end 13 of 13 is inserted into the through hole 11, and the enlarged head 15 side is a guide member that can be accommodated in the body part 9.
A screw 16 is cut on the side. In addition, enlarged head 1
5 is formed flat as shown in FIG.
This flatness obstructs and prevents rotation within the through-installation hole 11.

Reference numeral 17 designates a guide screw shaft whose inner end side is inserted into the through-mounting hole 11 from the side opposite to the guide member 13, and an internal thread 19 is cut into the inner end side of the guide screw shaft 17. This internal thread 19 and the threaded portion 16 of the guide member 13 are partially fitted in the through-installation hole 11.

20 is a spring, this spring 20
is pushing the guide screw shaft 17 in the radial direction within the through-mounting hole 11.

21 is a closing screw screwed into the screw hole 5;
2 is a lock pin of the handle 8.

Next, the assembly order of the above-mentioned gas tank will be explained.

First, in the handle 8, as shown in FIG.
3 and the guide screw shaft 17 are connected using the screw 16 and the internal screw 19, and the respective heads 15 and 18 are housed in the body part 9 of the handle 8, and this is connected to the gas cock main body 1 incorporating the closure 6. , and the engaging portion 7 of the closure 6 and the engaging groove 10 are engaged with each other.

Next, when a rotary tool is inserted through the screw hole 5 of the gas cock main body 1 and the guide screw shaft 17 is rotated, since the rotation of the guide member 13 side is prevented, the guide member 13 is moved into the gas cock by the action of the screw connection. The enlarged head 15 gradually protrudes toward the inner circumferential groove 4 of the main body 1, and eventually the distal end side of the enlarged head 15 is located within the inner circumferential groove 4. In addition, the guide screw shaft 1
The head 18 of 7 is connected to the spring 2 when no load is applied.
0 toward the inner circumferential groove 4, and it is also possible to push inward against the spring 20.

After positioning the guide member 13 and the heads 15 and 18 of the guide screw shaft 17 in the inner circumferential groove 4 as described above, the closing screw 21 is screwed into the screw hole 5 to close the screw hole 5 and prevent tampering. to prevent dirt, water, etc. from entering the interior.

[Effects of the present invention] As described above, the present invention has a
A through-insertion hole is provided for the book, and a guide member and a guide screw shaft that are internally screwed together are built into this hole, and the guide screw shaft can be rotated with a rotary tool to freely rotate the inner periphery of the gasket body side. The engagement relationship with the groove can be maintained or released.

As a result, it is very easy to assemble and disassemble, and the number of parts is small compared to conventional known examples, which has the effect of reducing manufacturing costs.

Also, as shown in Figure 4, if the parts are incorporated into the body of the handle for transportation, etc.
This has the advantage that there is no need to worry about losing parts.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the gas kettle according to the present invention, Fig. 2 is a sectional view showing the relationship between the mounting port of the gas kettle body and the handle, Fig. 3 is a bottom view of the handle, and Fig. 4 is a guide member inside the handle. 5 is a sectional view of the guide member and the head of the guide screw shaft protruding from the body, and FIG. 6 is a front view of the enlarged head of the guide member. It is. 1... Gasket body, 3... Installation port, 4...
Inner circumferential groove, 8...handle, 9...body section, 11...
...through-installation hole, 13... guide member, 17... guide screw shaft, 20... spring, 21... closing screw.

Claims (1)

[Claims for Utility Model Registration] A gas tank main body having a gas passage passing through the gas passage, and a taper for assembling a closure and a handle attachment opening formed in a direction perpendicular to the gas passage; a body part that is rotatably incorporated into the handle attachment opening of the gas kettle main body; a handle comprising: an inner circumferential groove formed in the mounting opening of the gas kettle main body; a screw hole penetrating from a part of the inner circumferential groove to the outer periphery of the gas kettle main body; a through-installation hole provided at a position facing the inner peripheral groove of the handle; and a threaded inner end side is inserted into the through-installation hole, and an enlarged head on the outer end side is connected to the outer periphery of the body portion of the handle. a guide member configured to fit within a plane or be pushed out and protrude and engage in an inner circumferential groove on the gas tank main body side; A guide screw shaft having an internal thread into which the screw of the member can be freely engaged, and a guide screw shaft whose head can be freely engaged in the inner circumferential groove of the gas cock body side; A gas tank comprising: a spring for applying force in a direction; and a closing screw that is screwed from the outside into a screw hole of the gas tank main body to close the screw hole.