JPH0113957Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a water heater that can be housed in kitchen furniture such as a sink or washstand, and can also be used as a floor-standing device.

BACKGROUND ART Recently, there has been a tendency to use a dedicated small water heater connected to kitchen furniture such as sinks and washstands placed in the kitchen room. This has the advantage that it requires less installation space and has lower operating costs than a large water heater that can centrally supply hot water. The water heater dedicated to kitchen furniture is not only housed within the housing of the furniture, but may also be placed on the floor alongside the housing if a separate item is to be housed within the housing.

Its structure is such that a tank equipped with a heating element, such as an electric heater, is housed in the main body of the water heater. Hot water is always collected in the tank, and hot water is supplied from the faucet by opening the hot water tap. Also, the tank is refilled with water based on the amount of water dispensed.

Therefore, over long-term use, impurities in the hot water will adhere to the tank and heating element as limescale, so it is necessary to wash the inside of the tank from time to time to remove limescale. A drain port body is connected to the bottom of the tank, and this body extends to the front side of the water heater body, and is freely opened and closed by a drain plug. When cleaning the tank, all the hot water in the tank is first drained, and then the drain valve is opened while water is being supplied into the tank in order to drain the remaining scale.

By the way, the washing water discharged from the drain plug at this time must be stored in an attached drainage container, for example. When the water heater main body is housed in a casing of kitchen furniture, the water heater main body is placed on the bottom plate of the casing. The bottom plate is the same as the top surface of the recess provided at the front bottom of the casing, and there is a sufficient height between the drain plug and the bottom of the casing, that is, the drainage container, so that all of the washing water, etc. in the tank can be removed. Can be drained. However, when the water heater is placed on the floor, the water heater and the drain container are lined up, making it impossible to create a large gap between the drain plug and the drain container, resulting in cleaning water remaining at the bottom of the tank. .

Therefore, in order to ensure reliable drainage even when the water heater is placed on the floor, it may be possible to raise the support legs provided at the bottom of the water heater body. However, on the other hand, if you try to house this water heater in the housing as it is, the upper part of the water heater body will collide with, for example, a water tank attached to the upper part of the housing, making it impossible to house it. In order to accommodate the water heater in the housing, it was necessary to reduce the size of the tank and reduce the height of the water heater itself, which meant sacrificing tank capacity.

The present invention was developed with attention to the above circumstances, and its purpose is to be able to be housed in the case of kitchen furniture such as sinks and washstands, and also to be able to be used as a floor-standing object. It is an object of the present invention to provide a water heater for kitchen furniture that can completely drain washing water, etc. in a tank into a drainage container, and can also increase the capacity of the tank.

Hereinafter, one embodiment of the present invention will be described based on the drawings. FIG. 1 shows a water heater S. Above water heater S
The water heater body 4 includes a water heater body 4 housing a tank 3 whose entire circumferential surface is covered with a heat insulating material 2, and a heating body 5 which is an electric heater and has a heating portion 5a extending into the tank 3. The bottom of this water heater body 4 has supporting legs 4a.
is installed. Also, the terminal portion 5b of the heating body 5
is covered with a temperature regulator 7, an overtemperature preventer 8, etc. in a cover 6 which is attached to the front surface of the water heater body 4 so as to be openable and closable. A water supply and drainage port body 9 is provided protruding from the bottom of the tank 3, and a drain port body 11 is connected via a piping member 10. This water supply port body 11 communicates with a water supply source (not shown). Further, the piping member 10 is along the bottom of the tank 3,
It extends to the front side, and a drain plug 12 that can be opened and closed is connected to the end. The height of the water heater main body 4 is set to be as high as possible within a permissible range so that the water heater main body 4 does not come into contact with the upper surface of the housing 1. Therefore, the height of the tank 3 can be increased and the capacity is large. tank 3
A hot water supply spout body 11a is provided on the upper surface of the hot water supply tap body 11a, and communicates with a hot water supply faucet (not shown). In addition, 13 is the water heater body 4
This is a power switch for the heating element 5, which is attached to the upper front surface of the heating element 5.

FIG. 2 shows the water heater S housed in a sink A, which is kitchen furniture. The water heater body 4 is
A water tank 16 is placed on the bottom plate 15 located on the recessed part 1a of the casing 1, and is provided at the top of the casing 1.
The height can be made as large as possible to the extent that it does not come into contact with the water pipes 17 or water pipes 17. Therefore, the capacity of the tank (not shown in the figure) is also large. The water heater main body 4 is connected from the water supply port body 11 and the hot water supply port body 11a to a hot water tap 20' via piping material (not shown). (See Figures 3 and 5.) During installation, when the hot water tap 20' is opened, water is supplied from the water source into the tank 3 via the hot water tap 20' and the water supply port body 11, and the hot water tap 20' When water flows out from ', the tank 3 is filled with water. In this state, if you close the hot water tap 20' and turn on the power switch 13,
The heating part 5a generates heat and changes the water to hot water. Thereafter, when the hot water tap 20' is opened, hot water is supplied from the hot water tap 20' from the tank 3 through the hot water supply port 11a.
The tank 3 is replenished with the amount of water that has been supplied.

After long-term use, empty the tank 3 and clean the inside. That is, an attached drainage container 14 is placed on the bottom surface of the front side of the housing 1, and this and the drainage plug 12 are communicated with each other through a hose 19. When the drain plug 12 is opened, the inner peripheral surface of the tank 3 and the heating section 5
Most of the limescale etc. adhering to A, etc. is drained into the drain container 1 together with the water inside through the drain plug 12 and hose 19.
It will be removed within 4 days. In this state, hot water tap 2
When 0' is opened, water is supplied from the water supply source to the tank 3 through the water supply port body 11, the inside of the tank 3 is washed, and the remaining scales are drained together with the washing water into the drainage container 14 through the drain plug 12 and hose 19. be discharged. Since there is a sufficient head difference between the bottom of the tank 3 and the drainage container 14 through the recessed part 1a, the washing water, limescale, etc. in the tank 3 can be completely drained.

FIG. 3 shows a state in which the water heater S is used as a floor-standing type. The water heater main body 4 is removably mounted and supported on a mounting table 18. This mounting table 18 is the fourth
As shown in the figure, for example, both sides of the upper surface have bent pieces 18a, 18a along the longitudinal direction, and a semicircular positioning part is formed at the opposite position of the bent pieces 18a, 18a. Notches 18b, . . . are provided. The supporting legs 4a (not shown in the figure) attached to the bottom surface of the water heater main body 4 engage with the notches 18b, . . . so that there is no displacement. Also,
As shown in Figure 3, when cleaning the tank, the drain plug 12
By connecting the hose 19 to the water heater body 4, the height of the water heater body 4 is increased by the height of the mounting table 18, so that the height difference between the water heater body 4 and the drain container 14 can be increased.
Washing water etc. in the tank 3 can be completely discharged. Note that 20 is a hot water tap, which, as shown in FIG. 5, includes a faucet 21, a hot water amount adjustment knob 22, and a temperature adjustment knob 23. A water supply pipe 24 communicating with the water supply source, a water supply pipe 25 communicating with the water supply port of the tank, and a hot water supply pipe 26 communicating with the hot water supply port of the tank are connected, respectively.

As explained above, according to the present invention, the tank with the heating element attached is housed in the water heater body, and the water heater body can be housed in the housing of kitchen furniture such as a sink or washstand. A drain plug is placed on the front side of the bottom that communicates with the inner bottom of the tank and is located below the tank, so that when the water heater body is placed inside the case of kitchen furniture, there is a sufficient height difference between the water heater and the inner bottom of the tank so that washing water inside the tank, etc. When the main body of the water heater is placed on the floor, it can be supported by being placed on a mounting table, and in that state, there is a sufficient head difference between the tank and the drainage container to enable complete drainage of the tank. , when the water heater body is housed in the housing,
Or, in both cases where it is placed on the floor, the washing water etc. in the tank can be completely and reliably drained. Furthermore, since the height of the water heater body can be set to such a level that it does not come into contact with the top surface of the casing, it is possible to maximize the capacity of the tank. Furthermore, since the mounting table is provided with a positioning portion, it is possible to prevent the water heater body from shifting when placed on the floor.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, with Fig. 1 being a partially cutaway side view of the water heater, and Fig. 2 showing the water heater being housed in a sink, which is kitchen furniture, and draining water into a drainage container. 3 is a schematic vertical sectional view, FIG. 3 is a perspective view of the water heater being used as a floor-standing type, and shows the state of water being drained into a drainage container; FIG. 4 is a perspective view of the mounting table; and FIG. 5 is a perspective view of the hot water tap. be. 5... heating element (electric heater), 3... tank,
A... Kitchen furniture (cooking table, sink), 1... Housing,
4... water heater main body, 12... drain plug, 18... mounting table, 18b... positioning section.

Claims (1)

[Scope of utility model registration request] A water heater main body that houses a tank with a heating element attached thereto and can be housed in a casing of kitchen furniture such as a sink or a washstand, and a bottom part of the water heater main body that communicates with the inner bottom of the tank and is below the tank. When the drain plug located at the front and the water heater main body are housed in the case of kitchen furniture, a sufficient drop is formed with the inner bottom of the tank to receive all the cleaning water, etc. in the tank discharged from the drain plug. When the water heater body and the water heater body are placed outside the casing of kitchen furniture, the water heater body is removably mounted and supported, and in this state, the inside of the tank is washed by making a sufficient head difference between the tank and the water heater body. A water heater for kitchen furniture, characterized by comprising a mounting table capable of discharging water without leaving any residue, and a positioning part provided on the upper surface of the mounting table to position the water heater body.