JPS6028344Y2 - electric heating pot - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an inner container mounting structure in which an electric heater is attached to the outer periphery of an electric heat-retaining pot.

An electric heat-retaining pot, in which the mouth of an inner container with an electric heater attached to its outer periphery is press-fixed to the periphery of the back side of the opening of a lower mouth member attached to the upper part of an outer cylinder, must have the following structure.

That is, in order to prevent electrical leakage of the electric heater, etc. due to liquid leakage from the joint between the mouth of the inner container and the periphery of the back side of the opening of the lower mouth member, the joint is designed to prevent liquid from leaking. It needs to be watertight.

Furthermore, it is necessary to install and wire a thermal reed switch, a thermostat, etc. to the bottom of the inner container, and an external connection outlet, a temperature controller, etc. to the space between the bottom of the inner container and the bottom member of the outer cylinder. It is necessary to simplify the structure near the bottom of the inner container, and to provide a mounting structure for the inner container that allows easy wiring.

The present invention was developed to satisfy the above-mentioned conditions, and consists of an outer cylinder that houses an inner container attached to the outer periphery, and a lower opening member provided on the upper part of the outer cylinder. , in an electric heat-retaining pot comprising a lid provided on the upper part of the lower mouth member so as to be openable and detachable, the hanging member hanging from the lower mouth member and the receiving member at the bottom of the inner container are interconnected. By doing so, the inner container is stably supported between the lower mouth member and the receiver member, and a large compressive stress is generated at the mouth of the inner container to ensure sufficient watertightness between the inner container mouth and the lower mouth member. It is an object of the present invention to provide an electric heat-retaining pot that can secure the temperature of the inside of the pot and use the bottom of the inner container as a space for wiring, etc.

The configuration of the present invention will be explained below based on the embodiments shown in the drawings.

FIG. 1 is a longitudinal cross-sectional view of an electric heat-retaining pot according to the present invention.

In the figure, reference numeral 1 denotes a pouring plate member having an opening 1a approximately in the center and a downwardly facing annular flat surface 1b around the outer periphery.

This pouring plate member 1 is arranged so that its annular flat surface 1b is placed on an inner support upper edge 2a provided at the upper end of the outer cylinder 2.

Reference numeral 3 denotes an overhanging member having an appropriate shape such as a boring bowl shape or a strip shape, which is integrally or separately projected from the peripheral edge 1c on the back side of the opening of the pouring plate member 1 toward the outer peripheral side of the opening by caulking, welding, etc. It is.

The upper end edge 2a of the outer cylinder 2 is held between the outer rising edge 3a of the projecting member 3 and the annular flat surface 1b of the pouring tray member 1.

Further, the pouring plate member 1 and the projecting member 3 form a lower mouth member 35 disposed on the upper part of the outer cylinder 2 of the electric heat-retaining pot.

Reference numeral 4 denotes a single-layer inner container made of glass, aluminum, etc., and housed inside the outer cylinder 2.

A band-shaped electric heater 5 consisting of a heating heater 5a and a heat-retaining heater 5b is attached to an annular stepped portion 4a provided on the lower outer periphery of the inner container 4.

A small annular step 4b is provided at the lower end of the outer circumference of the inner container 4, and a thermostat 10, a thermal reed switch 11, etc. are attached to the bottom lower surface 4c of the inner container by appropriate means.

Reference numeral 8 denotes an inner container bottom support member, which forms an annular wall 8a with a small space A around the outside of the electric heater, and outwardly curved flange portions 8b and 8a from the upper and lower ends of the annular wall 8a. The portions 8C of the inwardly bent receivers that receive the bottom of the inner container 4 are protrusions.

The receiving portion 8c is provided with an appropriate number of small protrusions 8b to reduce the area of contact with the small stepped portion 4b of the inner container 4.

Reference numeral 7 designates a hanging member having an appropriate shape such as a rectangular or cylindrical shape, which is suspended from an appropriate location of the overhanging member 3, which forms the lower mouth member 35 with the pouring plate member 1, by an appropriate means such as screwing or welding.

A positioning piece 7b of the receiver member 8 partially hangs down from the tip of the inwardly bent connecting portion 7a provided below the hanging member 7.

As shown in FIG. 2, the small piece 7b is connected to the inwardly bent connecting portion 7a by inserting the tip of the small piece 7b into a through hole 8e formed in the outwardly bent flange 8b of the member 8. is connected to the outwardly bent flange 8b of the member 8 by suitable means such as screws 9.

A backing 6 is held between the mouth portion 4b of the inner container 4 and the peripheral edge 1c on the back side of the opening of the pouring plate member 1 in a watertight manner.

Reference numeral 12 denotes a heat insulating material filled on the inner circumferential surface 2c of the outer cylinder 2.

Reference numeral 13 denotes a bottom member, and after inserting the annular wall 13a into the lower end opening of the outer cylinder 2, an annular flat surface 13b near the outer periphery is brought into contact with the lower end edge 2b of the outer cylinder 2, and screwed into the screw hole 13e. 1
It's 4.

On the front outer peripheral surface of the annular wall 13a of the bottom member 13, a third
As shown in the figure, a protrusion 13d is partially protruded from the upper end of the front outer peripheral surface of the annular wall 13a to form a groove 13c into which the lower end edge 2b of the outer cylinder is inserted.

A space B sandwiched between the bottom member 13 and the bottom lower surface 4c of the inner container 4 is provided with an external connection outlet, a temperature controller, etc.
(not shown) is stored.

20 is a lid body, and the rear end portion of the lid body 20 is connected to the outer cylinder 2.
It has a pivot 30 at its rear end that can be opened and closed.

Reference numeral 20c denotes a lid closing lever, and its hooked tip engages with a lever receiver 14a provided in a drain opening 14 attached to the front end of the outer cylinder 2.

Although not shown, the lid 20 may be removably provided on the pouring plate member 1.

A manual or electric (not shown) air pump 21 made of a diaphragm or the like is built inside the lid 20, and the lid is moved by vertical movement of a pressing member 22 or electric drive (not shown). The structure is such that compressed air is blown from a blow-off hole 20b formed in the bottom plate 20a.

26 is a handle pivotally supported on the outer cylinder 2.

Reference numeral 25 denotes a plug that is detachable from the mouth portion 4b of the inner container 4, and an air passage 25 is provided inside the plug, either integrally or separately.
a sends the compressed air blown from the blow-off hole 20b to the inner container 4.
It is designed to lead inside.

Furthermore, a check valve 25b is installed in the air passage 25a to prevent hot water and hot air from flowing back into the air pump 21.

25c is a backing provided on the top of the plug to prevent leakage of compressed air.

25e is a pumping pipe, and 25f is a pouring pipe.

An annular backing 25g is attached to the outer periphery of the stopper 25 to prevent hot water and hot air from flowing out.

In addition to the pumping means consisting of the air pump 21 and the stopper 25, etc., although not shown, a drive means consisting of an electric motor or the like is built into the lid 20, and
A pump such as a propeller type (axial flow type) is attached to an appropriate location in the inside of the pumping pipe or the lower end opening of the stopper consisting of the pouring pipe and the pumping pipe, and is further placed near the lid bottom plate 20a. Of course, it is also possible to have a structure in which the drive means and the water pump are interlocked via a freely connectable joint provided so that hot water is poured by operation of the drive means.

Next, a method of assembling the electric heat-retaining pot according to the present invention will be explained.

First, the annular flat surface 1b of the pouring plate member 1 is placed on the inwardly curved upper edge 2a of the outer cylinder 2, and then the overhanging member 3 with the hanging member 7 vertically disposed is inserted into the inside of the outer cylinder 2. Then, the inner edge 3b of the projecting member 3 is aligned with the peripheral edge I on the back side of the opening of the pouring tray member 1.
Fix to C by caulking or welding.

Then, the outer rising edge 3a of the projecting member 3 and the annular flat surface 1b of the pouring plate member 1 form the upper edge 2 of the outer cylinder 2.
Hold a.

Next, the inner container 4 to which the electric heater 5, thermostat 10, and thermal reed switch 11 are attached is inserted from the bottom opening of the outer cylinder 2, and the opening 4b of the inner container 4 and the opening of the pouring plate member 1 are inserted. The backing 6 is sandwiched between the back side peripheral edge 1C.

After that, the inner container bottom receiver is the inner bent receiver of the member 8.
c is brought into contact with the small stepped portion 4b of the inner container 4, and the outwardly bent collar portion 8b and the inwardly bent connecting portion 7a of the hanging member 7 are connected with screws 9.

Subsequently, after filling the insulation material 12 and installing and wiring an external connection outlet, a temperature regulator, etc. in the space B formed at the bottom of the outer cylinder 2, the bottom member 13 is attached to the bottom of the outer cylinder 2. .

Finally, a drain opening 14 is attached to the front end of the outer cylinder 2, and a lid 20 is attached to the pouring plate member 1.

Furthermore, the lower part of the stopper 25 is inserted into the inner container 4 to complete the assembly of the electric heat-retaining pot.

Note that the present invention is not limited to the above-mentioned embodiments,
Appropriate changes are possible.

For example, the pouring plate member 1 and the overhanging member 3 forming the lower mouth member 35 may be integrally formed in advance.

Furthermore, the hanging member 7 may be attached directly to the pouring tray member 3.

As explained above, in the present invention, the lower opening member and the receiving member can support the upper and lower parts of the inner container, and since both ends are supported, stable support is possible.

Therefore, a large compressive stress can be generated between the periphery of the back side of the opening of the lower mouth member and the mouth of the inner container, and sufficient watertightness of this part can be ensured regardless of the posture of the electric heating pot. It is possible to prevent electrical leakage accidents in electric heaters, etc. due to liquid leakage.

In addition, on the bottom side of the inner container, the receiver connected to the hanging member is supported by the member, and it is possible to eliminate the need for a member supporting the inner container between the bottom of the inner container and the bottom of the outer cylinder.

Therefore, the space between the inner container bottom and the outer cylinder bottom can be effectively used for wiring, etc.

[Brief explanation of the drawing]

Figure 1 is a longitudinal cross-sectional view of the electric heating pot according to the present invention, Figure 2
The figure is a sectional view taken along the line ■-■ as above, and FIG. 3 is a partially cutaway perspective view of the bottom member. 5...Electric heater 4...Inner container,
2...Outer cylinder, 35...Lower mouth member, 20
... Lid body, 7 ... Hanging member, 8 ...
...The bottom support of the inner container is a component.

Claims (1)

[Scope of utility model registration request] an outer cylinder in which an inner container with an electric heater attached to the outer periphery is housed; a lower mouth member provided on the upper part of the outer cylinder;
In the electric heat-retaining pot, which is provided with a lid that can be opened and closed or detached from the upper part of the lower mouth member, a hanging member hanging from the lower mouth member and a receiving member at the bottom of the inner container are interconnected. An electric heat-retaining pot characterized in that the upper and lower portions of the inner container are supported by the lower mouth member and the receiver member.