JPS598136Y2 - water heater - Google Patents

Description

[Detailed description of the invention] This invention relates to a method of fixing a hot water storage type water heater to a building, etc.

The hot water storage tank of a hot water storage type water heater is cylindrical to increase water pressure resistance, and vertically long to minimize installation space.

For this reason, most of the products had a basic cylindrical external shape, making them difficult to fix to buildings etc. due to their shape.

In addition, it is generally considered that there is no need to fix the product to a building, and no special means for fixing it is provided on the product side.

The reason for this was that the hot water storage tank was always full of water, making it quite heavy, and it was believed that the product would not topple over even in the event of an earthquake.

However, during the Miyagi-oki Earthquake that occurred in June 1978, some products fell over in apartment complexes, proving that they are vulnerable to large-scale earthquakes.

The present invention aims to eliminate this drawback by providing means for fixing the upper part of the product to a building.

To explain the structure of a conventional water heater with reference to Fig. 1, 1 is a cylindrical tank for storing hot water, and the upper and lower sides of this tank 1 are equipped with cylindrical weld nuts 2 with screw seats on the inner surface. are welded watertight, and hot water pipe 3 and water pipe 4
are screwed together.

The case bottom plate 5 is fixed to the lower surface of the tank 1 together with the vessel legs 6 with bolts 7.

The lower part of the cylindrical scale body 8 is fixed to the case bottom plate 5 with screws 9, and the case upper plate 10 is fixed to the upper part of the case body 8 with screws 9.

11 is a heat insulating material such as glass wool surrounding the outer periphery of the tank 1.

12 is a packing for covering the gap formed between the small hole provided in the center of the case top plate 10 and the hot water supply pipe 3;
are handles for transportation attached to the case top plate 10 and the case bottom plate 5, respectively.

As mentioned above, the tank 1 and the case are not directly fixed at the top of the product, and the small hole in the center of the case top plate 10 is larger than the outside diameter of the hot water pipe 3, so the tank 1 and the case are not directly fixed at the top of the product. The distance between the tank 1 and the case body 8 can be easily changed while compressing the heat insulating material 11 such as glass wool.

Under these conditions, even if the building and the case are fixed in some way, it will not be possible to prevent tank 1, which accounts for most of its weight, from shaking in the event of a large earthquake, and once it starts shaking, the thin steel plate will not be able to prevent the tank from shaking. A suspended case could easily be damaged, and there was a risk of it falling over.

Next, to explain one embodiment according to the present invention, Fig. 2 is a vertical cross-sectional view of the upper center part of the product in which the present invention is implemented, Fig. 3 is a top view showing the state in which it is fixed to a wall, and 14 in the figure is a pipe portion. 15
and a flange part 16, the tip of the pipe part 15 is welded so as to protrude from the top surface of the tank 1, and is inserted into the outer circumference of the weld nut 2, which connects the hot water pipe 3, leaving a slight gap, and the flange The portion 16 is fixed to the case top plate 10 with screws 17.

Reference numeral 18 denotes a plurality of attachment parts provided on the same circumference of the flange portion 16, and are provided to protrude from the case top plate 10 in order to avoid the handle 13 for transportation.

This mounting part 18 has a support plate 20 fixed to the wall 19 at one end.
It is for fixing the other end with a bolt 21,
In FIG. 3, the product and the wall 19 are fixed with two support plates 19.

22 is a packing made of rubber or the like that is press-fitted between the hot water supply pipe 3 and the fixing plate 14.

In this way, in the present invention, the fixing plate 14 integrated with the hot water supply pipe 3 is fixed to the wall via the weld nut 2, which is a part of the tank 1, so that the tank itself and the wall are directly fixed. Almost the same effect can be obtained.

Therefore, it has the effect of alleviating the risk of products falling over or being damaged even in the event of a large-scale earthquake.

Further, in the case of attachment work, if the attachment part 18 is shaped to protrude from the upper surface of the case, the carrying handle 13 will not interfere and the attachment can be fixed from any direction.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view of a conventional water heater, FIG. 2 is an enlarged vertical cross-sectional view of the upper central part of the product showing an embodiment of the present invention, and FIG. 3 is a top view showing the fixed state of the product according to the present invention. 1 is a tank, 3 is a hot water pipe, 10 is a case top plate, 14 is a fixing plate, 15 is a pipe portion, 16 is a flange portion, and 18 is a mounting portion.

Claims (2)

[Scope of utility model registration request] (1) A fixing plate 14 is attached to the case top plate 10 that covers the upper part of the hot water storage tank 1, and the pipe portion 15 that covers the outer periphery of the hot water supply pipe 3 connected to the hot water storage tank 1 is connected to the fixing plate 14 and the wall surface. A flange portion 16 provided with a mounting portion 18 for
A water heater characterized by being provided with. (2) The water heater according to claim 1, which is a registered utility model, characterized in that the mounting portion 18 of the fixing plate 14 is shaped to protrude from the upper surface of the case.