JPS59108513A - Pot - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heating, heat-retaining, or dual-purpose water heater that heats water in a bottomed cylindrical inner container and then maintains the water at a constant temperature. The present invention aims to provide a water heater equipped with a highly sensitive overflow prevention valve mechanism. Normally, water heaters that are heated, kept warm, or used for both purposes increase the pressure inside the inner container due to steam during heating and keeping warm, so a lid that seals the opening of the inner container is connected to the outside of the container in order to release the pressure to the outside. A communicating hole is required, but if it were just a simple communicating hole, hot water would spill out in the event of a fall, causing burns and staining tatami mats, etc., so in conventional water heaters, the hot water can be moved into the communicating hole. A conical valve such as a steel ball or ceramic is inserted, and a valve seat corresponding to the Af valve is provided on the inner lower surface of the upper end of the communication hole, so that if the vessel falls over, the valve will come into contact with the valve seat and the communication hole will open. It had a closed structure. However, due to the structure of this structure, when the vessel completely falls over, the communication hole is closed, but in the event of an incomplete fall, such as when the vessel is about to fall over, the valve does not come into contact with the valve seat, so hot water continues to come out from the communication hole. The present invention eliminates the above-mentioned drawbacks of the conventional methods, and as an embodiment of the present invention, an electric heating pot with a natural dripping hot water supply type will be described below with reference to the attached drawings. I will explain.

In the figure, 1 is a body of an electric heating pot, the upper end of which is connected to a spout 2, and the lower end to a base 3.The spout 2 has a handle 4 that can be rotated freely, and the spout 2 has a handle 4 that can be rotated and rotated using the rear as a fulcrum. A removable upper lid 5 is fixed to the spout 2 by engaging a hook portion 2a of a lock knob 6 that is integrally formed with the spout 2. A spring 7 biases the lock knob 6 toward the hook portion of the spout 2.

8: The lid cover holds the spring and is fitted with the upper lid 5, forming a steam a9 that communicates with the upper lid 5 to the inside.

Reference numeral 10 denotes an inner container for storing water that is fixed to the spout 2 via a backing 11, and a heater 12 is provided on the outer peripheral surface of the lower end, and a heat insulating material 13 is provided on the outer peripheral surface of the upper end.

Reference numeral 14 denotes an inner lid, and as shown in FIG. 2, a communicating cylindrical portion 14a communicating with the outside air is formed inside the central knob portion, and a valve seat 14b is formed on the upper surface of the communicating cylindrical portion 142L. 16(i;l: A ball valve made of a material such as polypropylene or polyethylene with a specific gravity of less than 1, and is accommodated in the communicating cylinder part 14 & so as to be freely movable.

Reference numeral 16 denotes a valve cover forming the lower surface of the communicating cylindrical portion 14a, and an appropriate number of valve covers are provided in the inscribed position to prevent the ball valve 15 from being pushed up against the valve seat 14b by the steam pressure even if the water boils under normal conditions. A through hole 16a'iiz is provided to disperse steam pressure to the outside of the valve 15. In addition, the cover 16 has a mounting hole at a position corresponding to the caulking protrusion i4c provided on the lower surface of the inner lid 14, and is fixed to the lid 14 by caulking, and supports the ball valve 16. ing.

Reference numeral 17 denotes a lid backing which connects the steam hole 9 and the communicating cylindrical portion 14a of the inner lid 14 in an airtight manner, and also serves to press the outer periphery flange portion of the inner lid 14 against the packing 11 when the upper lid 5 is closed.

Furthermore, an automatic temperature control device 18 such as a thermostat and a communication pipe 19 are provided on the outer peripheral bottom surface of the inner container 10 to adjust the temperature of the water inside.

2o is a hot water supply valve mechanism connected to the communication pipe 19 via a flexible pipe 21, and presses an operation button 23 slidably provided at the upper end of the display plate 22 engaged with the body 1 downward. As a result, the valve is opened via the sliding rod 24, and the discharge port 26 is press-fitted into the hot water supply valve mechanism 2o.
The hot water is poured outside the vessel.

26 is a sliding spring, and normally the sliding rod 24 is the hot water supply valve mechanism 20.
Its role is to urge it upward so that it does not hit.

In the above configuration, if the inner container 1o is accidentally tipped over when it is being kept warm or when the power is turned off and it is actually being used on the floor or tabletop, the hot water in the inner container 1o will flow from the shell through hole 16a of the cover 16 to the communicating cylindrical portion 1.
At this time, the ball valve 16 provided in the communicating cylindrical portion 14a moves due to its own weight, water flow, and water pressure, and the valve seat 14b at the upper end of the communicating cylindrical portion 14a moves. This prevents hot water from flowing out of the vessel. In addition, even in an incomplete state of falling, such as when falling onto something, the ball valve 15 is made of a material such as polypropylene or polyethylene, which has a specific gravity of less than 1, so it can be used as shown in Figure 3. It floats, moves with the flow of hot water, and reliably comes into contact with the valve seat 14b, thereby preventing hot water from flowing out to the outside of the vessel. In addition,
The valve cover 16 is connected to the center side of the through hole 162L as shown in FIG. The ball valve 16 is pushed up and the valve seat 14b
can be prevented from coming into contact with the

As described above, according to the present invention, a communicating cylinder part that communicates with the outside air is provided approximately at the center of the lid, a ball valve having a specific gravity of 1 or less is accommodated in the communicating cylinder part, and the ball valve is connected to the ball valve on the upper surface of the communicating hole cylinder part. By providing a corresponding valve seat, a highly sensitive overflow prevention valve mechanism that closes the opening on the top surface even in an incomplete overturning state is obtained, further increasing safety. Moreover, this overflow prevention valve mechanism can be applied to thermos bottles, etc., and its practical value is extremely large.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway sectional view of a natural drip hot water supply electric heating pot showing an embodiment of the present invention, Fig. 2 is an enlarged sectional view of the same main part, and Fig. 3 is a state in which the electric heating pot is tilted. FIG. 4 is a perspective view of a valve cover of the electric heating pot, and FIG. 5 is a perspective view of a valve cover in another embodiment of the present invention. 1o...Inner container, 14...Inner lid, 14a...
...Communication cylinder part, 14b...Valve seat, 16...
...Ball valve, 16...Valve cover, 16a...
Through hole, 16b... rectifying plate. Name of agent: Patent attorney Toshio Nakao Haga 1 person No. 4
Figure f, 5 Figure 5

Claims (1)

[Scope of Claims] (1) A bottomed cylindrical inner container and a removable lid that covers the top opening of the inner container, with openings on the top and bottom surfaces approximately in the center of the lid and communicating with the outside. A communicating cylindrical portion is provided, and a ball valve having a specific gravity of 1 or less is movably accommodated in the communicating cylindrical portion, and the opening is closed by the contact of the ball valve on the entire upper surface of the communicating cylindrical portion, and the lower surface is closed. A water heater configured to support the ball valve. ? 2.) The water heater according to claim 1, wherein the lower surface of the communicating cylinder portion is constituted by a ball valve support plate in which a plurality of through holes are formed. (3) Claim 2 in which a rectifying plate is provided in the through hole.
Water heater described in section 0