JP2503010Y2 - Hot water storage - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a hot water storage type hot water supply device, and more specifically, a hot water storage type used for a hot water flush toilet seat which injects hot water to a local part of a human body to wash dirt. It relates to a water heater.

[Prior Art] Conventionally, in a hot water storage type water heater having a tank 1 for storing hot water, a drain port 3 used for draining the water in the tank 1 is as shown in FIGS. 4 and 5. It is provided at the bottom of the tank 1 so as to open downward, and the drain plug 5 is attached to and detached from the drain port 3 from below the tank 1.

[Problems to be Solved by the Invention] By the way, in the hot water storage type water heater, wiring is often provided below the tank 1 and other members are present. However, in the conventional example described above, the drain plug 5 is attached and detached from below the tank 1,
When draining water from the inside of the tank 1, it is necessary to squeeze the hand to the lower surface side of the tank 1. It is difficult to attach / detach the drain plug 5, and since the attachment / detachment work is performed from below, the hand is easily wet by drainage. , During the drainage and near the end of the drainage, flows down the bottom surface of the tank 1 to the side,
There was a problem of wetting the lower surface of the.

The present invention has been made in view of the above problems, and an object of the present invention is to facilitate attachment and detachment of a drain plug when draining water from a tank, and to wet the bottom surface of the tank with drainage when draining water. To provide a hot water storage type hot water dispenser.

[Means for Solving the Problems] In order to achieve the above object, a hot water storage type water heater A according to the present invention stores water from a water supply source in a tank 1 and uses a heat source section 2 arranged in the tank 1. In a hot water storage type water heater for heating stored water, a drain port 3 is provided on a side wall of a bottom portion of a tank 1 so as to open laterally, and a draining protrusion 4 is provided at a lower end of an outer peripheral portion of the drain port 3. is there.

[Operation] Since the drainage port 3 is provided on the side wall of the bottom portion of the tank 1 so as to open laterally, the drainage plug 5 to the drainage port 3
Can be attached and detached from the side of the tank 1, and it is easy to perform the work because it is not necessary to rotate the hand during the work. In addition, since it can be detached from the side, drainage from the drainage port 3 is difficult to handle when detaching, and further, since a draining protrusion 4 is provided at the lower end of the outer peripheral portion of the drainage port 3, drainage is possible. At the time of drainage and at the end of drainage, the drops are dropped downward by the draining protrusions 4 so that they do not flow to the lower surface of the tank 1.

Hereinafter, the present invention will be described in detail based on illustrated embodiments.

The hot water storage type water heater A of the present invention is used for, for example, a hot water washing toilet seat.

The hot water storage type water heater A is configured as shown in FIG. 1, and a tank 1 formed by an upper casing 1a and a lower casing 1b has a bottom portion located below a heat source portion 2 in the tank. A rectifying plate 6 is arranged substantially parallel to the bottom surface of the tank 1, and a diffusion chamber 7 is formed between the rectifying plate 6 and the bottom surface of the tank 1. A water supply port 8 for flowing water into the tank 1 is provided in the diffusion chamber 7, and a retention plate 9 is disposed downstream of the water supply port 8. The retention plate 9 and the straightening plate 6 are connected to each other. A diffusion outlet 10 having a slit-shaped opening is provided therebetween. In other words, a fan-shaped weir from the bottom surface of the tank 1 is provided on the downstream side of the water supply port 8.
9a is provided so as to project, and a diffusion outlet 10 having a slit-like opening shape is formed between it and the lower surface of the current plate 6. Above the diffusion chamber 7, there is provided an opening 11 for allowing water to flow out from the diffusion chamber 7 into the tank 1. A baffle plate 12 that laterally guides the water from the diffusion chamber 7 that flows out of the opening 11 is provided above the opening 11. The water that flows out laterally by the baffle 12 is near the heater 2a. To flow to. The inflow water from the water supply port 8 first flows into the diffusion chamber 7, and the inflow water flows from the water supply port 8 with a small inflow cross-sectional area, and the high-velocity inflow water largely agitates the inside of the diffusion chamber 7. Therefore, the flow velocity is reduced by diffusing in the diffusion chamber 7. The decelerated inflow water flows through the opening 11 from the diffusion chamber 7 to above the straightening vane 6. At this time, the flow velocity of the inflowing water is the gap between the straightening vane 6 and the bottom surface of the tank 1 as described above. That is, it is set by the running water passage cross-sectional area of the diffusion chamber 7. Therefore, it is possible to freely decelerate the inflow water by arbitrarily setting the cross section of the water flow passage. The decelerated inflow water flows from the diffusion chamber 7 through the opening 11 to the straightening plate 6.
Flow upwards, but if it continues to flow upwards, tank 1
A baffle plate 12 is provided above the opening 11 in order to agitate the warm water inside, and the inflow water is guided laterally by the baffle plate 12 and flows into the tank 1 along the lower surface of the heater 2a. ,
The hot water is heated by the heater 2a. With such a configuration, the decelerated inflow water is stored in the tank 1
A heater at the bottom of the tank 1 without stirring hot water in the tank
It is supplied to the vicinity of 2a and heated by the heater 2a to push the warm water in the tank 1 in a layered manner so that the hot water is efficiently discharged from the discharge port 13. In the figure, 14 is a float switch, which is activated when the washing water becomes full in the tank 1,
The controller functions so that the heater 2a can be operated. This is to prevent empty burning. Then, the controller feedback-controls the heater 2a based on a signal from the temperature sensor 15 that detects the temperature of the washing water provided in the tank 1 so that the temperature is set by the user.
It controls the temperature of the washing water inside. A drainage port 3 is provided on one end side of the lower casing 1b in which the flow regulating plate 6 and the baffle plate 12 are arranged, and is provided on the side wall so as to open to the side. A drain plug 5 is detachably attached to the drain port 3. A draining projection 4 is provided on the lower end of the outer peripheral portion of the drainage port 3 so as to face downward. The lower casing 1b is a half part in which the height position of the bottom surface differs depending on the step portion 17
It is divided into 1b 'and 1b ", and the drainage port 3, the rectifying plate 6 and the baffle plate 12 are arranged in a half portion 1b' whose bottom surface is located lower than the half portion 1b '. By arranging the drainage port 3 in the half portion 1b 'where the position of the bottom surface is lower than that of ″, the water in the tank 1 can be drained without remaining in the tank 1 when draining through the drainage port 3. I can do it. Further, since the drainage port 3 is provided on the side wall so as to open to the side, the drainage plug 5 at the time of drainage
Can be removed from the side of the tank 1 which is less likely to drain water to the hand, and can be removed from the side, which facilitates the work of attachment and detachment. The side wall of the half portion 1b 'is provided with a current plate mounting shelf 18 as shown in FIGS.
A baffle plate mounting shelf 19 is provided above the table so as to be raised by one step. A supporting projection 20 is provided on one end side of the half portion 1b 'near the drainage port 3 so as to extend upward from substantially the center, and a fixing tool 21 for fixing the rectifying plate 6 is inserted at substantially the center of the other end side. The screw hole 22 is provided. Then, the rectifying plate 6 is mounted on the rectifying plate mounting shelf 18 at its peripheral edge so that the locking projections 23 are fitted into the recesses 24 provided on the sides of the screw holes 22 as shown in FIG. The one end 6a is placed on the support protrusion 20 and the fixing tool 21 is screwed into the screw hole 22 to be fixed. The baffle plate 12 arranged above the baffle plate 6 is provided with supporting legs 12a projecting downward from the lower surface, and the peripheral edge of the baffle plate is placed for mounting.
The fixing member 25 is mounted on 19 and is fixed together with the flow straightening plate 6 by screwing a fixing member 25 into the support protrusion 20 from the upper surface through the support leg 12a and the flow straightening plate 6. With such a structure, the baffle plate 12 can be fixed together with the baffle plate 12, and the number of assembling steps can be reduced, and the baffle plate can be fixed by one fixing tool 25. The rectifying plate 6 can be fixed together with 12, and even if the other end 6b of the rectifying plate 6 is combined with the fixing device 21 which is fixed, two fixing devices are used and fixed only at two places. Is something that can be done. At this time, fixing with the fasteners 21 and 25 is performed on each shelf 1
The heights of the support protrusions 20 and the support legs 12a are slightly lower than the height positions of 8,19, and when fixed with fasteners 21 and 25, the straightening plate 6 and the baffle plate 12 are fixed. The central portion fixed by the tools 21 and 25 is lowered downward so that the peripheral edges are in pressure contact with the shelves 18 and 19, respectively. It is designed to prevent water leakage.

When draining the water in the tank 1, the drain plug 5 is removed from the side of the tank 1 to drain the water in the tank 1 through the drain port 5. And
Droplets that try to reach the bottom surface of the tank 1 from the peripheral edge of the drainage port 3 during drainage are dropped downward without draining around the bottom surface of the tank 1 due to the presence of the draining protrusions 4. The bottom surface will not get wet. Further, even if there is a drop just before the end of drainage, it will be dropped downward by the draining projection 4, and the tank 1
It does not wrap around the underside of the.

[Advantage of the Invention] As described above, the hot water storage water heater of the present invention is provided with a drain opening on the side wall at the bottom of the tank so that it opens laterally. It can be done from the side, and it is easy to put on and take off, and when draining, it can be removed from the side, so that it is difficult for the hands to get wet. Also,
Since a draining protrusion is provided on the lower end of the outer peripheral part of the drainage port, drops that try to reach the bottom surface of the tank from the peripheral edge of the drainage port may drain around the bottom surface of the tank when draining. Instead, it is dropped downward by a draining protrusion, the bottom surface of the tank does not get wet when draining, and even if there is a drop just before the end of draining, it will be drained by the draining protrusion, It does not sneak into the underside of the tank.

[Brief description of drawings]

FIG. 1 is a sectional view of one embodiment of the present invention, and FIG.
(B) is a plan view and a side view showing an arrangement state of drainage ports, FIG. 3 is a front sectional view of the same as above, FIG. 4 is a perspective view of a drainage outlet and a drain plug of a conventional example, and FIG. In the figure, A is a hot water storage type water heater, 1 is a tank, 2 is a heat source part, 3 is a drain port, and 4 is a draining protrusion.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Tsutomu Okumoto 1048 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd. (56) References JP-A-83-7353 (JP, A) 57174 (JP, U)

Claims (1)

(57) [Scope of utility model registration request] 1. A hot water storage type hot water supply apparatus in which water from a water supply source is stored in a tank, and the stored water is heated by a heat source section arranged in the tank, which opens laterally on a side wall of a bottom portion of the tank. A hot-water storage type hot water dispenser provided with a drainage port, and a draining protrusion protruding from the lower end of the outer periphery of the drainage port.