JPH0520953Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a gas tank installation tool for connecting a gas pipe to a gas tank and installing the gas tank on a wall, floor, or the like.

[Prior Art] Conventionally, gas pipes installed inside houses have been made of iron, which has high strength. Therefore,
When installing a gas kottok in a house, it was sufficient to simply fix the gas kottok to the gas pipe, and there was no need to fix the gas kottok to the wall or floor.

However, recently, flexible corrugated pipes have come to be used as gas pipes because of their advantages such as being able to bend freely and therefore making piping work easier. . When using such a corrugated pipe,
Due to its flexibility, the gas tank cannot be fixed simply by connecting it to the gas pipe. Therefore, it was necessary to fix the gas stove to the wall or floor.

Therefore, a flanged gas stick has been developed as described in Japanese Utility Model Application Publication No. 104871/1983. This flanged gas tank has a plate-shaped flange integrally formed at the end where the connection part for connecting the gas pipe is formed.
The flange portion is fixed to the wall or floor with bolts, thereby fixing the gas tank to the wall or floor.

However, when using a flexible gas pipe dedicated gas pipe, it is necessary to manufacture the same number of flanged gas pipes as the conventional gas pipes used for strong gas pipes such as those made of iron. There was a problem that as the number of types of gas kottok increased, manufacturing costs and management costs increased.

Therefore, in order to enable the gas tank to be used commonly for both rigid and flexible gas pipes, the applicant has devised a method in which a flange can be attached to the gas tank as needed.

Figure 4 shows the actual application filed by this applicant in 1983.
This figure shows the flanged gas tank described in No.-120480.

In the center of the flange 2, a fitting hole 21 into which the base 41 of the gasket 4 is removably inserted;
A through hole consisting of an insertion hole 22 is formed into which the tapered male pipe thread C ₁ of the joint C connecting the gas socket 4 and the flexible pipe (not shown) is inserted, and one end of the flange 2 has the above-mentioned fitting hole inserted. A cylindrical portion 23 whose axis coincides with the hole 21 is formed. The gas socket 4 has a base portion 41 inserted into the fitting hole 21, and its base end surface is brought into contact with an annular protrusion 24 provided around the insertion hole 22 of the flange 2. The gas tank 4 is fixed to the flange 2 by abutting the tips of three bolts B ₁ screwed in against the outer periphery of the base 41 . On the other hand, the flange 2 has a mounting hole for the wall member W.
It is fixed to the wall member W by two bolts _B2 which are inserted through the wall member W and screwed into a mounting plate M disposed on the back side of the wall member W.

In addition, when connecting the gas tank 4 to a rigid gas pipe (not shown), by loosening the bolt B ₁ and removing the flange 2, the pipe taper female thread 42 of the gas tank 4 and the pipe pipe of the gas pipe can be connected. Can be directly screwed together with a tapered male thread.

[Problems to be solved by the invention] The invention disclosed in the above-mentioned Utility Application No. 120480/1987 has achieved the intended purpose of obtaining a gas tank that can be used for both rigid and flexible gas pipes.

However, in the case of _the structure shown in FIG.
The spanner hook _C2 of the joint C is not always in contact with the other end surface 25 of the flange 2, and in many cases a slight gap is formed as shown in the figure. Therefore, the gasket 4 has a bolt B ₁ to the base 41.
Although it is fixed to the flange 2 by the pressing force of As a result, a gap is created between the proximal end surface of the base 41 of the gas bottle 4 and the annular protrusion 24 of the flange 2 . On the other hand, Gaskotoku 4
Since there is also a gap between the base 41 of the flange 2 and the fitting hole 21 of the flange 2, when force is applied in the direction intersecting the axis of the base 41 when the gasket 4 is pulled out as described above, the bolt _B1 There was a problem in that the gas tank 4 wobbled about the support portion, making the mounting posture of the gas tank 4 unstable.

This not only mars the aesthetic appearance of the installed state, but also causes unnecessary anxiety to those who use the Gasoline Cock 4, which is inconvenient.

To deal with this, it is possible to extend the cylindrical portion 23 of the flange 2 and increase the length of the fit between the base 41 of the gas socket 4 and the fitting hole 21 to prevent the gas socket 4 from wobbling. This is not practical because the following problems arise. That is, the base 41 of the gas socket 4 has a hexagonal cross section with a spanner hook, and by applying a wrench to the base 41 and the spanner hook C ₂ of the joint C, the joint C is screwed into the gas socket 4 to make it firm. I am trying to fix it to . However, if the length of the fitting is increased as described above, the base 41 of the gasket 4 exposed from the cylindrical portion 23 of the flange 2 becomes shorter, making it impossible to apply a wrench and securely fixing.

This invention was made in view of the problems of the conventional technology mentioned above, and its purpose is to
A gas tank used for strong gas pipes can be securely installed and fixed on a wall or floor so that it does not wobble during use, and therefore the gas tank can be used commonly for both rigid and flexible gas pipes. An object of the present invention is to provide a gas tank fixture that can reduce the number of gas tank types and thereby reduce manufacturing costs and management costs.

[Means for Solving the Problems] This invention was made to achieve the above object, and its gist is (a) a tapered male thread for pipes is formed on the outer periphery of one end to be screwed together with a female tapered pipe thread of Gaskotoku; , a cylindrical main body having a connecting part to which a gas pipe is connected at the other end, and a locking part having a larger diameter between the tapered male pipe thread and the connecting part, and (b) a central body. A through hole penetrating from one end surface to the other end surface is formed in the part, and one end side of the through hole is a fitting hole into which the base portion having the tapered internal thread for pipes of the gas kock is removably inserted,
(c) a flange member in which the other end of the through hole has a smaller diameter than the fitting hole and is an insertion hole through which the tapered male pipe thread of the main body is inserted, and the periphery of the insertion hole is an annular protrusion; and the other end surface of the flange member facing the locking portion, and by urging the locking portion away from the flange, the proximal end surface of the gas tank is connected to the flange member. An elastic body that presses against the annular protrusion of the member.

[Function] Insert the base of the gas socket into the fitting hole of the flange member, interpose an elastic body between the flange member and the locking part of the main body, and screw the tapered male thread for pipes on the main body into the female taper thread for pipes on the gas socket and tighten. and,
The elastic body urges the locking portion of the main body away from the flange, and urges the gas stick in the same direction through the main body. As a result, the proximal end surface of the gasket is pressed against the annular protrusion of the flange member.

As a result, the flange member is firmly fixed to the gas tank and does not wobble. Moreover, the aesthetic appearance of the installed state is also improved.

[Example] An example of this invention will be described below with reference to Figures 1 to 3.
The explanation will be based on the drawings in the figures.

As shown in FIG. 1, the gas tank fixture A of this embodiment is composed of a main body 1, a flange (flange member) 2, and a corrugated washer (elastic body) 3.

The main body 1 has a cylindrical shape, and a tapered male thread 11 for a pipe is formed on the outer periphery of one end thereof to be screwed into a female tapered pipe thread 42 of the gas tank 4. Also,
A connecting portion 12 to which a corrugated pipe K is connected is formed at the other end of the main body 1 . The connecting part 12 is
In this case, a parallel thread 1 formed on the outer periphery of the main body 1
2a, and a tapered hole 1 formed on the inner periphery of the main body 1.
2b. Furthermore, between the tapered male pipe thread 11 of the main body 1 and the connecting portion 12,
A spanner hook portion (locking portion) 13 having a hexagonal cross-section and a larger diameter than these is formed.

The flange 2 has a substantially disk shape, and a cylindrical portion 23 protrudes from one end surface of the central portion. Flange 2
A through hole 20 is formed in the cylindrical portion 23 so that its axis coincides with that of the cylindrical portion 23 and penetrates from the end surface of the cylindrical portion 23 (one end surface of the flange) to the other end surface 25 of the flange 2 .
One end of this through-hole 20 is a fitting hole 21 into which a base 41 of the gas stick 4 can be inserted and removed, and the base 41 is formed with a hexagonal cross section for hanging a spanner. Correspondingly, the fitting hole 21
It is also formed with a hexagonal cross section. The cylindrical portion 23 has three screw holes 26 into which bolts B ₁ for fixing the flange 2 to the base 41 of the gas tank 4 are screwed. On the other hand, the other end of the through hole 20 has a circular cross section with a diameter smaller than that of the fitting hole 21, and is an insertion hole 22 through which the tapered male pipe thread 11 of the main body 1 can be inserted. Insertion hole 22
The periphery thereof is an annular protrusion 24. Further, a bolt hole 27 is formed in the outer peripheral portion of the flange 2, into which a bolt B2 for fixing the flange ₂ to a wall member W or a floor member is inserted. On the other end surface of the flange 2, a fitting protrusion 28 is formed in the center thereof to be fitted into the attachment hole Wa of the wall member W, and an annular recess 29 in which the O-ring R is fitted is formed on the outer circumferential side of the fitting protrusion 28. ing.

The wave washer 3 is made of a metal plate such as spring steel, and has a disk shape in plan view as shown in FIG.
A through hole 31 is formed through which the is inserted. When viewed from the side, this wave washer 3 has a substantially S-shaped curve as shown in Figure 3, and when force is applied from both sides, it acts as a spring due to its elasticity, similar to a so-called spring washer. work.

In the flange 2, the gasket P ₁ and the base 41 of the gasket 4 are inserted into the fitting hole 21, and the tapered male pipe thread 11 of the main body 1, which has been inserted through the through hole 31 of the corrugated washer 3, is inserted into the insertion hole 22. It is inserted. Further, the tapered male pipe thread 11 of the main body 1 is screwed into the tapered female pipe thread 42 of the gas tank 4.

In the above state, the wave washer 3 is attached to the flange 2.
It is sandwiched from both sides by the other end surface 25 and the wrench hook part 13 of the main body 1, and exhibits a spring action. As a result, the annular protrusion 24 of the flange 2 is strongly pressed against the proximal end surface of the base ₄₁ of the gasket 4 through the seal P1, and thereby,
The flange 2 is firmly fixed to the main body 1 and the gas tank 4. Therefore, the gasket 4 does not wobble relative to the flange 2. In particular, since the wave washer 3 is made of metal, it is easy to adjust its spring force to the desired strength, and it does not deteriorate like rubber, so the flange 2 remains strong for an extremely long time. Fixed.

In addition, the tip of each bolt B1 screwed into the threaded hole 26 of the cylindrical portion ₂₃ of the flange 2 is abutted against the outer periphery of the base portion 41 of the gas cock 4, so that the gas cock 4 is positioned in the center of the flange 2.

The flange 2 fixed to the gas tank 4 cooperates with the mounting plate M to clamp the wall member W by tightening the bolt B ₂ that passes through it and is screwed into the mounting plate M. 4. The fixture A and the entire corrugated pipe K are fixed to the wall member W.

Next, an example of a procedure for installing and fixing the gas tank 4 to the wall member W using the fixture A having the above configuration will be described.

First, the fitting protrusion 28 of the flange 2 is attached to the wall member W.
Drill a mounting hole Wa that is approximately the same diameter as . its mounting hole
Pull out the corrugated pipe K from Wa to the indoor side.
A mounting plate M is inserted into the pulled-out corrugated pipe K from its end and is positioned on the outside of the room with respect to the wall member W. Next, attach the base 41 to the fitting hole 2 of the flange 2.
1 and tighten bolt B ₁ . and,
Tapered male pipe thread 11 of main body 1 with corrugated washer 3 inserted into tapered female pipe thread 42 of gas tank 4
Screw in. This fixes the flange 2 to the gas tank 4. At this time, the wrench hook part 13 of the main body 1 is used.

Next, the corrugated pipe K is connected to the connection part 12 of the main body 1. Regarding this connection method, see Utility Model 61-
Since it is described in Publication No. 59092, it will be briefly explained. Peel off the covering member C at the tip of the corrugated pipe K, and engage the protrusion Sa formed at the tip of the cylindrical sleeve S, which is split in half or in half, into the trough on the tip side of the corrugated pipe K. In this state, the sleeve S and the corrugated pipe K are inserted into the tapered hole 12b of the main body 1. After that, the parallel screw 12
The sleeve S is tightened by the cap nut N screwed into a.
is pushed into the tapered hole 12b until the protrusion Sb at the rear end abuts against the main body 1. Then, the end of the corrugated pipe K is crushed and pressed against the packing P ₂ attached to the bottom of the tapered hole portion 12b, thereby airtightly connecting the corrugated pipe K and the inside of the main body 1. be done.

After fixing the gas tank 4 and the corrugated pipe K to the fixture A, insert the annular protrusion 28 of the flange 2 into the mounting hole Wa of the wall member W, tighten the bolt B ₂ , and connect the flange 2 and the mounting plate M. Wall member W
are clamped, thereby fixing the gas tank 4 to the wall member W.

In this manner, according to the fixture A described above, the gas tank 4 without a flange can be installed and fixed on the wall member W. Therefore, even when a flexible gas pipe such as a corrugated pipe K is installed, there is no need to use a flanged gas tank, and gas tanks can be unified to those without flanges. Then,
It is possible to reduce the manufacturing cost and management cost of the gas kettle.

Moreover, according to the above-mentioned fixture A, the aesthetic appearance of the installed state can be improved, and
The mounting strength can be improved. That is,
If the gas tank 4 is simply attached to the wall W, the flange 2 may be formed integrally with the main body 1. However, when the flange 2 is formed integrally with the main body 1, the threaded connection between the main body 1 and the gas socket 4 is a tapered thread connection, so that the main body 1 of the gas socket 4
The fixed position is not constant. Therefore, it is inevitable that a gap will be formed between the gasket 4 and the flange 2, and this will deteriorate the aesthetic appearance.
Furthermore, if a gap is created between the flange 2 and the gas socket 4, the gas socket 4 will separate from the flange 2, which is its supporting member, and the mounting strength will decrease.

In this regard, in the fixture A of this invention, the flange 2 is separate from the main body 1, the main body 1 is movably inserted into the insertion hole 22 of the flange 2, and the base 41 of the gas socket 4 is inserted into the flange 2. The corrugated washer 3 presses and fixes the base end surface of the gas socket 4 against the annular protrusion 24 of the flange 2, so that there is no gap between the flange 2 and the gas socket 4. The appearance of the attached state can be improved, and the attachment strength of the gas tank 4 is improved, so that it does not wobble.

This invention is not limited to the above-mentioned embodiments, and various embodiments can be adopted.

For example, in the above embodiment, a wave washer is used as the elastic body, but it goes without saying that a flat washer or a spring washer may also be used.

Further, in the above embodiment, the corrugated pipe K is connected as a flexible gas pipe, but other gas pipes may be connected. In that case, it goes without saying that the shape and structure of the connecting portion 12 should correspond to the shape of the gas pipe to which it is connected.

Furthermore, the gasket 4 is fixed by holding the wall member W between the flange 2 and the mounting plate M, but while the insertion hole is formed outside the outer periphery of the annular protrusion 28, the bolt Instead of _B2 , wood screws may be used and the wood screws may be screwed directly into the wall member W to fix the wall member W. In this way, the mounting plate M is unnecessary.

[Effects of the invention] As explained above, the gas kottok fixture of this invention has the excellent effects described below.

Since the flange member is removably attached to the gas tank, the gas tank can be unified to one without a flange member, and therefore the manufacturing cost and management cost of the gas tank can be reduced.

Furthermore, since the flange member is pressed against and fixed to the gas tank by the elastic body, the mounting strength can be improved and the gas tank can be prevented from wobbling during use. Moreover, when the tapered male pipe thread of the main body is screwed into the tapered female pipe thread of the gas kettle, the elastic body presses the end face of the proximal end of the gas kettle against the flange member, which requires time and effort to increase the installation strength of the gas kott. do not.

Furthermore, due to the elastic force of the elastic body, no gap is created between the gas socket and the flange member, and since the base of the gas socket is inserted into the fitting hole of the flange member and is not exposed, the installation state can be improved. can improve the aesthetic appearance of

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of this invention, with Figure 1 being a partially cutaway sectional view, Figure 2 being a front view of the elastic body, and Figure 3 being a view taken in the direction of the arrow in Figure 2. be.
Further, FIG. 4 is a sectional view corresponding to FIG. 1 according to the prior art. A... Fixture, B ₂ ... Bolt (fixing screw member), K... Corrugated pipe (gas pipe), 1...
Main body, 2... flange (flange member), 3...
Wave washers (elastic body), 4...gaskotoku, 11
... Tapered male thread for pipe, 12 ... Connection part, 13 ...
...Spanner hook part (locking part), 20...Through hole, 2
DESCRIPTION OF SYMBOLS 1... Fitting hole, 22... Insertion hole, 24... Annular protrusion, 25... Other end surface, 27... Bolt hole (insertion hole), 41... Base, 42... Tapered female thread for pipe.

Claims (1)

[Scope of Claim for Utility Model Registration] (a) A tapered male thread for a pipe that is threadedly engaged with a female tapered thread for a gas pipe is formed on the outer periphery of one end, and a connecting part to which a gas pipe is connected is formed on the other end, A cylindrical body in which a locking part with a larger diameter than these is formed between the male screw and the connecting part; One end of the through-hole is a fitting hole into which a base portion having a tapered female thread for pipes of the above-mentioned gas kock is inserted and removably inserted, and the other end side of the through-hole has a smaller diameter than the above-mentioned fitting hole, and the tapered male thread for pipes of the main body is inserted therethrough. (c) a flange member having an insertion hole with an annular protrusion surrounding the insertion hole; and an elastic body that presses the proximal end surface of the gas tank against the annular protrusion of the flange member by urging the locking part and away from the flange. Ingredients.