JPH0355017Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a flanged gas tank that can be attached to both rigid and flexible gas pipes.

[Prior Art] Recently, flexible gas pipes (hereinafter referred to as flexible gas pipes) such as corrugated pipes have been used as gas pipes because they can be bent freely and piping work can be easily performed. (abbreviated as "tube") have come to be used frequently. However,
When piping is done using flexible pipes, flexible pipes do not have the rigidity of iron gas pipes, so
The gas tank cannot be fixed in position simply by connecting it to the flexible pipe.

Therefore, when a flexible tube is used, a flanged gas tank as shown in FIGS. 4 and 5 is used. This gas kettle has a fitting part 12 formed by cutting off the tip of a mounting part 11 having a hexagonal cross section of a kettle main body 1 into a circular cross section.
The flange 2 is fixed to the fitting portion 12 by shrink fitting or adhesive, and a set screw 3 is screwed between the fitting surfaces of the fitting portion 12 and the flange 2 to more securely fix them. This is what I did. Then, this gas tank is installed by sandwiching the wall member W or the floor member between the flange 2 and the plate member P, and tightening the bolt B.
Or it is fixed to a floor member. Note that a gas pipe (not shown in the drawings) is connected to a tapered female pipe hole (female thread) 13 formed on the distal end surface of the attachment portion 11 via a joint.

[Problems to be solved by the invention] In the flanged gas kettle having the above structure, the flange 2 is fixed to the kettle body 1 by shrink fitting or adhesive, so the flange 2 cannot be removed from the kettle body 1. Therefore, it is not used for iron gas pipes due to aesthetic reasons. Therefore, when performing piping work in a building where flexible pipes and iron gas pipes coexist, it is necessary to prepare both flanged gas pipes and flanged gas pipes. It is necessary to prepare one for each type. For this reason, there are problems in that the manufacturing cost of gas kottok rises and it takes time and effort to manage it. Further, if the flange 2 is forcibly removed, it can be used for a steel gas pipe, but it takes a lot of effort to remove it, and in addition, an annular fitting part 12 is formed at the tip of the mounting part 11. Since one half of the screw hole for the screw member 3 is formed in the fitting portion 12, there is a problem that the appearance deteriorates.

[Purpose of the invention] This invention was made to solve the above problem, and can be used not only for flexible gas pipes but also for rigid gas pipes such as those made of iron. To provide a flanged gas tank which can reduce the manufacturing cost and management cost of the gas tank, and which does not impair the aesthetic appearance even when used in a rigid gas pipe.

[Structure of the invention] In order to achieve the above object, this invention forms a through hole that penetrates the flange from one end surface to the other end surface, and into which the attachment part of the Kotuku main body is removably inserted. The main structural feature is that an annular protrusion having a larger diameter than the female threaded part is formed on the inner peripheral surface of the other end of the through hole, and the main body and the flange are fixed by a screw member. .

[Example] Hereinafter, an example of this invention will be described with reference to FIGS. 1 to 3.

FIGS. 1 and 2 show an embodiment of this invention. The flanged gas pot of this embodiment includes a pot body 4 and a flange 5.

The pot body 4 is approximately L-shaped, and one end thereof is a mounting portion 41 having a hexagonal cross section. A tapered female threaded hole (female threaded portion) 42 for a pipe is formed in the center of the distal end surface of the mounting portion 41, and a screw hole 43 is formed in the peripheral portion thereof. In addition, a mounting portion 4 is provided at the other end of the Kotoku main body 4.
A connecting portion 4 protruding parallel to 1 and toward the opposite side.
4 is formed. A gas pipe such as a rubber pipe connected to a gas appliance is connected to this connecting portion 44.

On the other hand, the flange 5 has a substantially disk shape, and a through hole 51 is formed in the center thereof, passing through from one end to the other end. This through hole 51 is
It is formed to have approximately the same dimensions as the mounting portion 41 so that the mounting portion 41 can be inserted into and removed from one end of the mounting portion. Further, an annular protrusion 52 having an inner diameter slightly larger than that of the tapered female threaded hole 42 is formed on the inner peripheral surface of the other end of the through hole 51 . This annular protrusion 52
A bolt insertion hole 53 is formed at a location opposite to the screw hole 43. In addition, the flange 5 has
A bolt hole 54 is formed through which a bolt B for fixing it to a wall member W or a floor member is inserted. Note that the other end surface of the flange 5 has a fitting protrusion 55 formed in the center thereof to be fitted into the attachment hole Wa of the wall member W, and an annular recess in which an O-ring or packing etc. is attached to the peripheral edge thereof. 56 is formed.

The flange 5 has a mounting portion 41 fitted into the through hole 51, and is attached to the annular protrusion 52 by a bolt (threaded member) 6 that passes through the bolt insertion hole 53 and is screwed into the screw hole 43 of the main body 4. When the tip of the mounting part 41 is in contact with the Kotoku main body 4,
is fixed.

When the flanged gas tank having the above configuration is used for a flexible pipe, a flexible pipe (not shown) is connected to the tapered female threaded hole 42 via a joint C. Of course, the flexible tube may be directly screwed into the tapered female threaded portion 42. And flange 5
The wall member W is sandwiched between the and mounting plate P, and the gas kock is fixed to the wall member W by tightening the bolt B.

Further, when used for a rigid gas pipe made of iron or the like, the bolt 6 is pulled out from the screw hole 43 and the flange 5 is removed from the pot body 4. Then, a gas pipe is connected to the tapered screw hole 42 directly or via a joint.

In this way, in the flanged gas tank described above, the mounting portion 41 of the gas tank main body 4 is removably fitted into the through hole 51 of the flange 5, and is fixed with the bolt 6. can be easily attached to and detached from the Kotoku main body 4. Furthermore, by removing the flange 5, the main body 4 can be used as a rigid gas pipe. Furthermore, the Kotuku main body 4 does not have a cut-off part like the fitting part in the conventional gas Kotuku described above, and the difference between the Kotuku main body 4 and the rigid one dedicated to gas pipes is that the tip surface of the attachment part 41 The only difference is that a screw hole 43 is formed in the hole. Furthermore, the screw hole 43 is formed on the end face where it is difficult to see. Therefore, even when the flange 5 is removed and used, the aesthetic appearance can be prevented from deteriorating.

Moreover, FIG. 3 shows another embodiment of this invention. The gas tank in this example has a flange 5
A cylindrical portion 57 whose axis coincides with that of the through hole 51 and has the same inner diameter is formed on one end surface, and
This cylindrical portion 57 is formed with a screw hole 58 passing through it, and by abutting the set bolt (screw member) 7 screwed into the screw hole 58 against the outer periphery of the Kotsuk body 4, the flange 5 is attached to the Kotsuk body. It is set to be fixed at 4. Note that the other configurations are similar to those of the above embodiment, so similar parts are denoted by the same reference numerals and explanations thereof will be omitted. Of course, this embodiment also provides the same effects as those of the above embodiment.

In the above embodiment, the wall member W or the floor member is sandwiched between the flange 5 and the mounting plate P, and the gas kettle is fixed to the wall member W or the floor member by tightening the bolt B. However, instead of the bolts B, wood screws may be used and the wood screws may be screwed into the wall member B or the floor member and fixed.

[Effects of the invention] As explained above, according to the flanged gas tank of this invention, there is a through hole that penetrates the flange from one end surface to the other end surface, and into which the attachment part of the gas tank main body is removably inserted into one end. An annular protrusion with a larger diameter than the female thread is formed on the inner circumferential surface of the other end of the through hole, and the main body and flange are fixed with a screw member, making it easy to attach to the flexible pipe. Of course, it can also be used for rigid gas pipes such as iron gas pipes, which reduces manufacturing and management costs, and also reduces rigidity. Even when used in gas pipes with gas pipes, effects such as being able to prevent the aesthetic appearance from being impaired can be obtained.

[Brief explanation of drawings]

Figures 1 and 2 show an embodiment of this invention, with Figure 1 being a partially cutaway side view, Figure 2A being a plan view showing one end of the flange, and Figure 2B being the other side of the flange. FIG. 3 is a partially omitted side sectional view showing another embodiment of this invention; FIGS. 4 and 5 show an example of a conventional flanged gas tank; FIG. Side sectional view with parts omitted, sectional view 5
The figure is a view taken along the V arrow in FIG. 4. 4... Kotoku body, 5... Flange, 6, 7...
... Set bolt (screw member), 41 ... Mounting part, 4
2... Tapered female screw hole (female thread part), 51... Through hole, 52... Annular protrusion.

Claims (1)

[Scope of utility model registration request] The main body has a mounting part having a hexagonal cross section, and a female threaded part for connecting a gas pipe is formed on the distal end surface of the mounting part, and a flange fixed to the mounting part of the main body. In the flanged gas tank, a through hole is formed in the flange, passing through the flange from one end surface to the other end surface, into which the attachment part of the gas tank main body is inserted and removably fitted at one end, and on the inner circumferential surface of the other end of the through hole. A flanged gas pot, characterized in that an annular protruding portion having a larger diameter than the female screw portion is formed, and the pot main body and the flange are fixed by a screw member.