JPH0430973Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a vacuum type electric water pot for home use, and particularly to its water level display mechanism.

2. Prior Art In general, metal vacuum double containers in electric jars require great care in order to be manufactured precisely.In order to make manufacturing as easy as possible, the component parts must be of simple shapes and Because the number of welded joints was reduced, some functions were sacrificed, such as the water level display function of the jar pot being insufficient under certain conditions of use.

Problems that the invention aims to solve: In cases where the discharge pipe that takes out hot water from the jar pot and the water level pipe that displays the amount of hot water inside the jar are connected or are combined, the normal flow occurs when the hot water is not being discharged from the jar pot. Although the water level is displayed and there is no problem, there is a problem that the water level cannot be displayed when discharging hot water.

In other words, as shown in Figure 3, the conventional
An outlet pipe 4 was taken out from the heater 3 provided on the bottom surface 2 of the inner container 1 having a vacuum double container structure made of metal, a water level pipe 5 was connected to the outlet pipe 4, and a discharge pipe 6 was connected to the upper end of the pipe. When air is forced into the inner container 1 by the discharge air pump 7 provided in communication with the upper part of the inner container 1, hot water flows from the outlet pipe 4 to the water level pipe 5.
Since the water level pipe 5 reaches the discharge pipe 6 through the entire length of the pipe, the water level pipe 5 is filled with hot water and appears to be at full scale, which has the disadvantage that the water level cannot be determined. Therefore, no matter how much hot water remained in the jar pot, it was extremely inconvenient to use.

This invention solves these problems,
The object of the present invention is to provide a vacuum type jar pot that is easy to use and allows the water level to be recognized normally no matter how it is used.

Means for Solving the Problems In order to solve the above problems, the present invention provides a vacuum double container in which a space composed of a metal inner container and an outer container is evacuated. A heater part attached to the heater part, a lead-out pipe provided in a part of the heater part, and an airtightly inserted in the upper part of the vacuum double container so as to penetrate from the inside of the inner container to the outside of the outer container. A communication pipe, a transparent water level pipe connected via a packing between the communication pipe and the outlet pipe on the outside of the outer container, and a discharge pipe branched from the packing of the outlet pipe. A vacuum type electric jar pot is constructed, in which a flat part is formed in the upper part of the double container where the side surface of the inner container and the side surface of the outer container are in contact with each other, and a hole is made in this flat part, and the content in the vicinity thereof is formed. The side surface of the container and the side surface of the outer container are airtightly welded, and a plurality of dowels are provided on the flat surface of the outer container around the inner and outer containers for contacting the side surfaces of the inner and outer containers, and the communication pipe is inserted into the hole. It is something.

Function With this configuration, the water level pipe and the discharge pipe are provided separately and independently, so even when the water level pipe is in use, the water level of the water level pipe is displayed normally, and the water level can be seen from moment to moment, making it convenient during use. It is intended to provide

Embodiments Hereinafter, embodiments of the present invention will be described based on the accompanying drawings. As shown in FIGS. 1 and 2, in the housing 10 of the jar pot, the upper and lower ends of the inner container 11 and the outer container 12 made of metal such as stainless steel are connected to the inner peripheral edges of the annular upper plate 13 and lower plate 14. A space 15 forming a wall shape of the container is formed by welding to the outer periphery of the container, and this space 15 is
Vacuum double container 16 with high vacuum of about 10 ^-4 Torr
make. A heater section 19 is provided approximately at the center of the bottom 17 of the inner container 11 in the vacuum double container 16, with a heating element 18 exposed in the water.

An outlet pipe 20 is provided from this heater section 19 to vertically penetrate this section and take out hot water out of the container. Further, on a part of the side surface of the inner container 11 above the vacuum double container 16, a flat part 31 is formed in a predetermined tangential range of the circumference so as to form a plane facing the outer container 12, and a hole concentric thereto is formed. 21 are provided. Further, on the side surface of the outer container 12 facing this hole 21, a partially planar protrusion 32 protrudes inward to form a similar plane, and a hole 33 that is concentric with this planar protrusion 32 and communicates with the hole 21. has been established.

As can be seen particularly with reference to FIG. 2, these planar portions 31, 32 are brought into contact with each other, and the aforementioned holes 21, 33 are hermetically welded together at their peripheries. A plurality of dowels 35 of a certain height are provided on the flat part 32 of the outer container to receive the contact, thereby minimizing heat conduction from this contact part. A communication tube 22 made of a stainless steel pipe or the like is provided from the inner container 11 and passes through the communicating holes 21 and 33 via a packing 34. The tip of this communication pipe 22 is connected via a packing 23 to the upper end of a transparent water level pipe 25 that extends vertically between the housing 10 and the outer container 12, and the lower end of this water level pipe 25 is connected to the center bottom of the double container. It is connected to the distal end of the outlet tube 20 through a packing 24. Also Patsukin 24
There is a branch pipe section 26 that branches off, and this branch pipe section 26
There is a discharge pipe 2 extending vertically in parallel with the water level pipe 25.
7 are connected.

Furthermore, an air pump 30 on a diaphragm housed in a lid 29 is provided in the upper opening 28 of the vacuum double container 16 .

With this configuration, the air pump 30
When pressure is applied to the hot water contained in the hot water, the hot water flows from the outlet pipe 20 through the hole 26 into the discharge pipe 27, and can be taken out from the discharge port 27a connected to the upper end of the discharge pipe 27. On the other hand, since the upper end of the water level pipe 25 is connected to the vacuum double container again through the communication pipe 22, the air pressure and water pressure conditions are exactly the same as in the inner container 11, so the water level is always the same as the water level in the inner container 11. level.

Effects of the Invention As is clear from the above embodiments, the vacuum electric jet pot of the present invention separates the hot water level pipe and the discharge pipe in the vacuum double container, so even when hot water is being discharged, The water level in the water level tube will be the same as the water level in the container, which is convenient because the water level will always be known.

In addition, the area where the inner and outer containers come into close contact with each other, where the communication pipe should be taken out from the vacuum double container for the water level pipe, is extremely small, so heat loss due to heat radiation from this area is small and does not pose a practical problem. It is something. Furthermore, since this close contact portion only needs to be provided at one location, it has various practical effects, such as the welding process of this portion being extremely inexpensive.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a vacuum-type electric jar pot showing an embodiment of the present invention, FIG. 2 is a cross-sectional view of a main part of the same jar pot, and FIG. 3 is a cross-sectional view of a conventional vacuum-type electric jar pot. 16... Vacuum double container, 19... Heater section,
20... Outlet pipe, 22... Communication pipe, 25... Water level pipe, 27... Discharge pipe, 31... Planar part, 32...
Flat part, 33... hole.

Claims (1)

[Scope of Claim for Utility Model Registration] In a vacuum double container in which a space composed of a metal inner container and an outer container is evacuated, a heater part attached to the bottom of the vacuum double container and a part of the heater part a communication pipe installed in an upper part of the vacuum double container so as to penetrate from the inside of the inner container to the outside of the outer container in an airtight manner; and the communication pipe outside the outer container. A transparent water level pipe is connected between the and the outlet pipe through a packing, and a discharge pipe is provided branching from the packing of the outlet pipe, and the upper part of the double container is provided with a side surface of the inner container. and the outer container side surface contact each other, a hole is made in this planar portion, the inner container side surface and the outer container side surface are hermetically welded around the hole, and the outer container surface area around the inner container side surface is airtightly welded. A vacuum type electric jar pot, characterized in that a plurality of dowels are provided in the portion for contacting the side surfaces of the inner and outer containers, and the communicating tube is inserted into the hole.