JPS598132Y2 - Double exterior assembly device for stationary water heaters - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a double sheath assembly device for a stationary water heater.

Conventionally, in stationary water heaters, the outer casing is attached to the left and right sides of the combustion chamber housing the heat exchanger, burner, etc. necessary for hot water heating through insulation material, and the outer casing is attached to the combustion chamber with screws. Since the screws are attached, the assembly is not only complicated, but also the screws are exposed on the exterior surface, spoiling the appearance.

In addition, since this type of stationary water heater is usually installed alongside a sink, gas stove, etc., if the screw heads are removed from the left and right side panels of the appliance body, the appliance body can be placed close to the sink, etc. can be set.

The present invention has been devised in view of the above-mentioned points, and will be specifically explained below based on illustrated examples.

Reference numeral 1 denotes a combustion chamber body in which a heat exchanger, a burner, etc. are disposed, and is a box having a left side plate 2, a right side plate 3, and is open at the front and top, and is U-shaped in plan.

Reference numeral 4 designates an opening for attaching an intake/exhaust top, which is opened in the rear plate 5 of the combustion chamber housing 1.

Reference numeral 6 denotes an installation leg for the instrument, and the installation leg 6 is attached so as to protrude slightly outward from the side surface than the bottom plate 7.
is provided with an insertion opening 8 into which an external heat insulating case plate, which will be described later, is attached.

9 is an operation plate having an insertion hole 10 through which the operation shaft is inserted;
Its width is slightly wider than the width of the combustion chamber body 1, and it is made to protrude evenly on both sides to the extent that the heat insulating material 11 can be attached thereto.

Reference numeral 12 denotes bent pieces provided by bending the left and right ends of the operation plate 9.

This operation plate 9 is spot-welded a to the upper end of the combustion chamber housing 1.
It has been done.

Reference numeral 13 denotes an outer heat insulating case plate having an insertion space for inserting the heat insulating material 11 therein, and the outer heat insulating case plate 13 and the combustion chamber rod 1 form a double outer case.

Reference numeral 14 denotes an insertion latch piece which is formed by bending and hanging down the lower part of the outer heat insulating case plate 13, and is inserted into the insertion opening 8 and is hooked therein.

A spacer 15 is fixed to the rear inner surface of the outer heat insulating case plate 13, and is attached to the rear upper end of the combustion chamber rod 1 with screws or the like.

16 is a piping cover, 17 is a top plate, 18 is a front plate, and 19 is an opening/closing door.

The present invention has such a structure, and when assembling, the operation plate 9 is protruded evenly on the left and right from the upper end of the simplified combustion chamber 1 in which the heat exchanger, burner, etc. are installed, and is fixed by spot welding etc. , while the insertion hook piece 14 of the exterior heat insulation case plate 13 with the heat insulating material 11 inserted therein is inserted and hooked into the insertion opening 8 provided on the installation leg 6, the exterior heat insulation case plate 13 is inserted.
is pressed against the bent piece 12 of the operation plate 9, spot welded b from the outside at this bent piece 12, and the spacer retaining piece 15
By attaching and fixing to the rear upper end of the combustion chamber housing 1,
Assembly of the double exterior is complete.

Thereafter, the front plate 18 and opening/closing door 19 are assembled from the front, and the piping cover 16 and top plate 17 are attached from above, thereby completing the overall assembly of the appliance exterior.

As described above, the present invention fixes the operation plate, which is slightly wider than the width of the combustion chamber body, protruding evenly on the left and right sides from the upper end of the combustion chamber body in which the heat exchanger, burner, etc. are arranged. The above-mentioned operation is carried out from both the left and right sides of the exterior insulation case plate, which has an insertion locking piece that is inserted into the insertion opening provided on the installation leg and a spacing holding piece that maintains a constant interval between insertions of the insulation material. Since it is spot welded to the plate, not only can the exterior of the device be made into a double structure with simple construction, but also the ease of assembly is improved, and the appearance is elegant as no screws are exposed on the outside of the device.

Moreover, since the present invention fixes the combustion chamber rod and the external heat insulating case plate using the operating plate and the spacing piece, the space for inserting the heat insulating material can be reliably maintained and the structure becomes robust.

In addition, in this invention, the insertion latch piece of the exterior insulation case plate is inserted and latched into the insertion opening provided on the installation leg, and the exterior insulation case plate is spot welded to the operation plate, so that the screw head appears on the side of the device body. It can be installed in close contact with a sink, etc. without any problems.

Furthermore, by assembling the insertion and attachment of the insertion latching piece of the exterior insulation case plate using the installation legs, there is no need to provide a separate insertion part for the insertion latching piece, and the number of parts can be omitted and costs can be reduced. This has great practical effects.

[Brief explanation of the drawing]

The drawing is a perspective view of an entire assembly showing an embodiment of the present invention. 1... Combustion chamber rod, 6... Installation leg, 8
...Insertion opening, 9...Operation panel, 11.
...Insulating material, 12...Bending piece, 13...
... Exterior heat insulation case plate, 14 ... Insertion locking piece, 15 ... Spacing holding piece.

Claims (1)

[Scope of utility model registration request] An operation panel slightly wider than the width of the combustion chamber housing is fixed to the upper end of the combustion chamber housing in which the heat exchanger, burner, etc. are installed, and protrudes evenly from side to side. Installation legs with insertion openings for attaching the exterior insulation case plate are attached to protrude slightly outward from both sides of the bottom plate, and exterior insulation has insertion spaces on both sides of the combustion chamber housing for inserting insulation material inside. A case plate is provided, and the outer heat insulation case plate includes an insertion latch piece that is inserted into the insertion opening provided in the installation leg and a heat insulating material fixed to the rear inner surface of the outer heat insulation case plate to maintain a constant interval. A double exterior assembly device for a stationary water heater, characterized in that a spacer retaining piece is provided.