JPS6336222Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a gas connection device for gas appliances.More specifically, the hose end is detachable to enable connection of gas hoses and gas pipes, and is rotatable to facilitate the above connections. The present invention provides a gas connection device that has the following features.

The present device will be described with reference to the drawings. Reference numeral 1 denotes a fixed member such as a pipe provided inside the gas appliance, and is connected to a gas burner (not shown).

Reference numeral 2 denotes a connecting pipe, one end 3 of which is rotatably attached to the fixed member 1 such as the pipe, and the other end 4 protrudes outside from an opening 9 in the vessel wall 8 of the gas appliance, into which a hose end 10 is attached with a threaded portion. 7 makes it removable. The penetrating portion 5 of the opening 9 of the tube 2 is larger than the polygonal portion 6 described later. In the illustrated example, it is circular and the gap with the opening 9 is minimized to prevent dust and rainwater from entering and allow rotation. Reference numeral 6 denotes a polygonal portion formed between the penetration portion 5 and the threaded portion 7. 11 is a threaded part for attaching to the connecting pipe 2, 12 is a polygonal part, and 13 is a gas hose attaching part. 14 is a screw to prevent the connecting tube 2 from coming off, and 15 is a sealing member. Further, 16 is a sealing member fitted to the connecting pipe 2.

In addition, the diameter L of the opening penetration part 5 of the connecting pipe 2 is made larger than the diameter l of the polygonal part 12 of the hose end 10, and the internal maintenance can be performed by making the vessel wall 8 detachable without removing the hose end 10 from the connecting pipe 2. It is considered advantageous for management.
In the illustrated example, the vessel wall 8 has a lid wall 8a therein to further facilitate attachment and detachment.

Since the present invention is as described above, when a rubber hose connection is desired, the hose end 10 can be attached to the outer end of the connecting pipe 2 as shown in the figure. It functions as a flexible hose end.

In addition, when iron pipe piping is desired, an iron pipe (not shown) can be attached in place of the hose end 10, and in this case, the connecting pipe 2 can be rotated at the polygonal portion 6 without rotating the iron pipe, and the pipe connection is extremely easy. Easy to do.

In either case, a tool such as a swivel is applied to the polygonal part 6 of the connecting pipe 2, but the polygonal part 6 is not placed on the vessel wall side.
Since the larger penetration portion 5 is present, damage to the vessel wall 8 by tools can be prevented, and it is possible to provide gas appliances with excellent corrosion resistance, especially for external type gas appliances.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing an embodiment of the device of the present invention;
The figure is a partial sectional view, Figure 3 is a diagram showing a part of the proposed device protruding outside the gas appliance, and Figure 4 is Figure 2A-
A sectional view. DESCRIPTION OF SYMBOLS 1... Fixed part of a pipe etc., 2... Connection pipe, 5... Penetration part, 6... Polygonal part, 7... Threaded part, 10...
hose end.

Claims (1)

[Scope of utility model registration request] A gas appliance in which a hose end is removably attached to the other end of a connecting pipe, one end of which is rotatably attached to a fixed member such as a pipe inside the gas appliance, and the other end of which protrudes to the outside through an opening of the gas appliance. In gas connection equipment,
A gas connection device for a gas appliance, wherein the opening penetration portion of the connection pipe is larger than the polygonal portion provided between the connection pipe and the hose end mounting screw portion at the tip thereof.