JPS5910526Y2 - 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 was generally considered that there was no need to fix the product to a building, and no special means for fixing the product was provided.

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

However, during the Miyagi-oki Earthquake that occurred in June 1973, some products fell over in apartment complexes, proving that they are vulnerable to large-scale earthquakes.

The present invention aims to eliminate this drawback and provides a means for fixing the legs of the product to the floor.

The structure of a conventional water heater will be explained below with reference to Figures 1 and 2. 1 is a cylindrical tank for storing hot water, and a hot water pipe 2 and a water supply pipe 3 are installed on the upper and lower sides of the tank 1. each connected.

A plurality of L-shaped threaded plates 4 are welded to the concave surface of the bottom plate of the tank 1, and bowl-shaped vessel legs 5 are fixed to the screw seats with bolts 7 via the case bottom plate.

A cylindrical case body 8 is screwed to the lower case bottom plate 6, and a case top plate 9 is screwed to the upper part of the case body 8.

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

Reference numeral 11 denotes a packing for covering the gap between a small hole provided in the center of the case upper plate 9 and the hot water supply pipe 2 passing through the small hole.

As described above, in the conventional example, since the vessel legs 5 are bowl-shaped, there is no means for fixing them to the floor, and the case is also constructed of a thin steel plate, so it cannot be said to have a structure that can be fixed.

Next, to explain one embodiment according to the present invention, Fig. 3 is an enlarged sectional view of a water heater in which the present invention is implemented, with the legs fixed. A gap portion 15 is formed in the rising portion of the plate that contacts the tank 1 and faces the tank bottom plate with a small gap therebetween.

Reference numeral 13 denotes a vessel leg, a part of which protrudes laterally beyond the side surface of the vessel, and a fixing part 16 consisting of a screw hole or the like for fixing to the floor etc. is formed in the protruding part, and the case Bottom plate 6
protrudes upward through a through hole provided in the cavity 15.
A cut-and-raised portion 14 is formed to engage with.

A bolt 17 is used to fix the container leg 13 to the bottom of the container, and is screwed into the threaded plate 12 via the case bottom plate 6.

Reference numerals 18 and 19 show examples of the fixing method using the proposed device legs 13, in which 18 is an anchor bolt already embedded in the concrete floor surface 20, and 19 is an anchor bolt for fixing and holding the fixing part 16 of the device legs 13. It is a nut.

FIG. 4 is a bottom view showing an embodiment in which the vessel legs 13 are attached.
Three are installed.

In this way, the fixing part 16 is provided on a part of the vessel leg 13 that protrudes laterally beyond the side surface of the vessel, so that the anchor bolt 18, nut 19, etc. embedded in the floor surface can be fixed. By using it, it becomes possible to secure the vessel body, greatly increasing safety against earthquakes.

In addition, in the vessel leg 13 according to the present invention, the vessel leg 13 is fixed by engaging the cut and raised portion 14 with the threaded plate 12 and fixing the bolt 17.
Since the mounting direction can be regulated, it also has the advantage that it can be manufactured more cheaply and more strongly than the commonly used method of fastening with two bolts.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional view of a conventional water heater, Fig. 2 is an enlarged longitudinal cross-sectional view of the vessel legs, Fig. 3 is an enlarged longitudinal cross-sectional view of the vessel legs according to the present invention, and Fig. 4 is an enlarged longitudinal cross-sectional view of the vessel legs according to the present invention. It is a bottom view showing attachment of a body leg. 1 is a tank, 6 is a case bottom plate, 12 is a screw plate, 13 is a vessel leg, 14 is a cut-and-raised part, 15 is a cavity part, and 16 is a fixing part.

Claims (1)

[Scope of utility model registration request] A screw plate is provided at the bottom of the tank and is integrally fixed by welding or the like, and the case bottom plate that covers the tank bottom and the body legs are integrally fixed to the screw plate with bolts or the like using fixing devices, as described above. A gap portion is provided between the threaded plate and the tank bottom, which face each other with a small gap therebetween, and the container leg has a fixing portion shaped to protrude laterally than the container side surface, and the case bottom plate A water heater characterized in that a cut-and-raised portion is provided that penetrates and projects upward, the cut-and-raised portion is engaged with the void portion, and the fixing portion is fixed to a floor surface or the like.