JPH04340055A - Hot water storage type electric hot water generator - Google Patents

Abstract

PURPOSE:To simplify construction work by a method wherein first members of the bottom of an outer case, second members mounted on a setting surface in contact with the first member for supporting the weight of said case, and a connecting member for coupling both the members are provided and the second members having different height are selectively used. CONSTITUTION:A body foot 7 is fixed to the bottom plate of an outer case including therein a warm water tank by means of bolt and nut through a through hole 11 and a body foot 8 which can easily be replaced to adjust the height is directly mounted on a warm water generator setting surface. The feet 7, 8 are joined together, with their through holes 14, 15 being aligned, and connected by a bolt 12 and a nut 13 welded to the inside of the hole 15. By forming the hole 14 into elliptical shape, displacement of hole due to the dispersion of product can be allowed. When it is difficult to connect these feet due to the location of water resource pipe and warm water feed pipe or it is necessary to provide height for setting a waste water trap, a body foot 8 having required height can be employed, thereby simplifying construction work and improving work efficiency.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water storage type electric water heater equipped with legs that allow the height to be changed.

0002

2. Description of the Related Art FIG. 10 is a sectional view of a conventional hot water storage type electric water heater. In the figure, 1 is a hot water tank that stores hot water, 2 is an L-shaped tank leg that supports the hot water tank, 3 is a case side plate that surrounds the hot water tank, 4 is a case bottom plate, 5 is a case top plate, and 6a is a water heater. These are the legs of the vessel that support the entire weight of the vessel. FIG. 11 is an enlarged view of the vessel leg attachment section. 10a is a nut spot welded to the upper surface of the flat part of the tank leg 2, 9
A is a bolt that is screwed into this nut to fix the vessel leg 6a. FIG. 12 is a top view of the water heater with the case top plate 5 and case side plate 3 removed. FIG. 13 is an enlarged view of the vessel leg 6a. In the figure, 11a
is a through hole provided on the upper surface of the vessel leg 6a, and the vessel leg 6a is fixed by screwing a bolt 9a passing through this through hole and the case bottom plate 4 into a nut 10a.

0003

[Problem to be solved by the invention] In the hot water storage type electric water heater as described above, it was not possible to change the height of the hot water storage type electric water heater itself, so it was necessary to connect the water source water pipe and the water supply pipe of the water heater. Depending on the installation environment, the piping work required to do so could be extremely difficult. In addition, even when installing an S-shaped drain trap to prevent the backflow of residual water odors, etc., the height of the hot water storage type electric water heater itself cannot be changed, so there is a block under the legs of the device. Construction work was required to secure the height of the S-shape, such as fixing the roof, which was inefficient.

[0004] This invention was made to solve the above-mentioned problems, and it requires piping work to connect the water supply pipe of a hot water storage type electric water heater to the water supply pipe of the water source, as well as installation work on the lower part of the legs of the device. Simplify construction work such as fixing blocks,
The purpose is to eliminate it.

[0005]

[Means for Solving the Problems] The hot water storage type electric water heater according to the present invention includes an exterior case containing a hot water tank of the hot water storage type electric water heater; The container leg includes a first member provided on the bottom surface of the outer case, and a container leg that is placed on the installation surface and contacts the first member to support the outer case. It is composed of a second member that supports weight, and a connecting member that connects the first member and the second member, and each member has sufficient strength to selectively connect the second members of different heights. It is used for

[0006]

[Function] The hot water storage type electric water heater according to the present invention can change the height by selectively using the second member of the container leg having different heights, and the water supply pipe of the hot water storage type electric water heater and the water source water pipe. It is possible to simplify or eliminate construction work such as piping work to connect the equipment and fixing blocks to the bottom of the legs of the vessel.

[0007]

【Example】

Example 1. An embodiment of the present invention will be described below with reference to the drawings. In Figure 1, 1 is a hot water tank that stores hot water using late-night electricity, 2 is an L-shaped tank leg that supports hot water tank 1, 3 is a case side plate that surrounds the hot water tank, 4 is a case bottom plate, and 5 is a case bottom plate. The case upper plate 6 is a body leg that supports the entire weight of the hot water storage type electric water heater. In this embodiment, the vessel legs 6 are installed so as to divide the circular bottom of the hot water tank 1 into three equal parts at 120 degree intervals, and are L-shaped, supporting the hot water tank of a hot water storage electric water heater equivalent to 500 kg. It is made of a metal such as iron or an equivalent material that has the strength to Further, the L-shaped vessel legs 6 are installed facing outward and have excellent earthquake resistance. Figure 2 is an enlarged view of the vessel leg 6, and Figure 3 is the vessel leg A7 and vessel leg B.
FIG. 4 is an enlarged view of the attachment portion of the vessel leg A7. 7 is the exterior case bottom plate 4 with a built-in hot water tank.
Bolt 9 and nut 1 spot welded to tank leg 2
The vessel leg A is fixed at 0 and has a U-shaped cross section. Reference numeral 8 indicates a container leg B which can be easily replaced for height adjustment, and is placed directly on the surface on which the hot water storage type electric water heater is installed. Reference numeral 11 denotes a circular through hole C provided at the center of the upper surface of the vessel leg A7 for connecting the case bottom plate 4 and the vessel leg 6 with bolts 9 and nuts 10. 12,
Numeral 13 is a connecting member for connecting the vessel leg A7 and the vessel leg B8, and in this embodiment, a bolt 12 and a nut 13 spot welded to the inner surface of the vessel leg B8 are used. 14
In order to connect the vessel leg A7 and the vessel leg B8, the vessel leg A
One oval through-hole A is provided in the center of each of the two facing sides of 7. Reference numeral 15 denotes a circular through hole B provided on each of the two facing sides of the vessel leg B8 in order to connect the vessel leg A7 and the vessel leg B8. A nut 13 is welded to. By making the through hole A14 elliptical, there is an effect that a slight deviation in the position of the through hole due to a design error or the like can be tolerated. The vessel leg A7 and the vessel leg B8 are arranged such that the through hole A14 and the through hole B15 overlap,
The bolts 12 and nuts 13 are spot welded to the inside of the through hole B15. Reference numeral 16 denotes a hole cut out in the shape of a horseshoe, which is provided from the upper surface to the back surface of the vessel leg B8. When connecting the vessel legs A7 and B8 with the bolts 12 and nuts 13, the bolts 9 that would remain on the joint surface are prevented from remaining on the joint surface by providing the above-mentioned undercut holes 16, and the vessel legs A7 and B8 are connected using the bolts 12 and nuts 13. The legs A7 and the body legs B8 can now be firmly connected, and the hot water tank of the hot water storage type electric water heater, which weighs 500 kg, can be supported on the joint surface. FIG. 5 is a top view of the hot water storage type electric water heater with the case top plate 5 and the case side plate 3 removed.

[0008] In the hot water storage type electric water heater configured as described above, there are cases where it is extremely difficult to connect the water source water pipe and the water heater water supply pipe due to their positional relationship, or when installing a drain trap. If height is required, prepare several vessel legs B8 of different heights in advance and easily replace them with the necessary height vessel legs B8 using bolts 12 and nuts 13. The required height for the water heater can be secured. As a result, the conventional plumbing work to connect the water supply pipe of the hot water storage type electric water heater to the water source water pipe, and the work to fix blocks to the lower legs of the device, can be simplified or eliminated. You can increase work efficiency.

Example 2. In the first embodiment, the vessel leg A7 is provided with a U-shaped cross section, and the vessel leg A7 is externally mounted to sandwich two sides of the vessel leg B8, and these are connected by connecting members such as bolts and nuts. However, in this example, FIGS. 6 and 7
As shown in the figure, the vessel leg A7 is box-shaped with only the bottom open, and is sheathed to cover three or four sides of the vessel leg B8, and is spot welded to the bolt 12 and the inside of the vessel leg B8. They are connected through the oval through hole 14 and the circular through hole 15 by the connecting member of the nut 13, and have the same effect as the first embodiment.

Example 3. In the first embodiment, the vessel leg A7 is provided with a U-shaped cross section, and the vessel leg A7 is externally mounted to sandwich two sides of the vessel leg B8, and these are connected by connecting members such as bolts and nuts. However, in this example, FIGS. 8 and 9
As shown in , the vessel leg A7 has a rectangular cross-section, is internally sandwiched between two sides of the vessel leg B8, and has a connecting member of a bolt 12 and a nut 13 spot welded to the inside of the vessel leg A7. They are connected through the circular through hole 14 and the oval through hole 15, and have the same effect as the first embodiment.

Example 4. In the third embodiment, the vessel leg A7 is provided with a square-shaped cross section, and the vessel leg A7 is installed internally so as to sandwich the two sides of the vessel leg B8, and these are connected by connecting members such as bolts and nuts. However, in this example,
The vessel leg A7 has a rectangular cross section, is internally covered with three or four sides of the vessel leg B8, and is connected by a connecting member of a bolt 12 and a nut 13 spot welded to the inside of the vessel leg A7. This has the same effect as the third embodiment.

0012

[Effects of the Invention] As described above, according to the present invention, the height of the legs of the storage type electric water heater can be easily changed. Work efficiency can be improved by simplifying or eliminating plumbing work to match the height of water supply pipes and water source water pipes, and work to fix blocks to the lower legs of the vessel.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a hot water storage type electric water heater according to the present invention.

FIG. 2 is an enlarged view of the legs of the storage type electric water heater according to the present invention.

FIG. 3 is an exploded perspective view of the vessel legs of the hot water storage type electric water heater according to the present invention.

FIG. 4 shows a leg attachment part of the storage type electric water heater according to the present invention.

FIG. 5 is a top view of the hot water storage type electric water heater with the case removed.

FIG. 6 is an exploded perspective view of a container leg of a hot water storage type electric water heater showing a second embodiment of the present invention.

FIG. 7 is a sectional view of a vessel leg A of a hot water storage type electric water heater showing a second embodiment of the present invention.

FIG. 8 is an exploded perspective view of a container leg of a hot water storage type electric water heater showing a third embodiment of the present invention.

FIG. 9 is a sectional view of a vessel leg A of a hot water storage type electric water heater showing a third embodiment of the present invention.

FIG. 10 is a schematic diagram of a conventional hot water storage type electric water heater.

FIG. 11 is an enlarged view of the attachment portion of the legs of the conventional hot water storage type electric water heater.

FIG. 12 is a top view of a conventional hot water storage type electric water heater with the case removed.

FIG. 13 is an enlarged view of the legs of a conventional hot water storage type electric water heater.

[Explanation of symbols]

1 Hot water storage tank 2 Tank legs 3 Case side plate 4 Case bottom plate 5 Case top plate 6. Vessel legs 6a　Vessel legs 7. Vessel legs A 8　Vessel legs B 9 bolts 9a bolt 10 Nut 10a Nut 11 Through hole C 11a Through hole 12 bolts 13 Nut 14 Through hole A 15 Through hole B 16 Nigeana

Claims (1)

[Claims] [Claim 1] An exterior case containing a hot water tank of a hot water storage type electric water heater, comprising a container leg provided on the bottom surface of the exterior case and placed on a water heater installation surface, the container leg comprising: a first member provided at the bottom of the exterior case; a second member placed on the installation surface and supporting the weight of the exterior case by contacting the first member; and a connecting member that connects the second member to the second member, each member having sufficient strength, and by selectively using the second members of different heights, the height of the hot water storage type electric water heater can be changed. A hot water storage electric water heater.