JPS6223405Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pneumatically fed electric pot, and its purpose is to provide an electric pot with a simple structure and excellent heat retention.

Hereinafter, embodiments of the present invention will be described based on the drawings. The electric pot A consists of a double-walled metal vacuum container 1, a draining member 2 with a central opening attached to the upper end of the container, a top lid 4 detachably attached to the upper end of the draining member, and a bottom member 5 attached to the lower end of the container. , a discharge member 6 that discharges the liquid in the container and is equipped with a liquid volume display, a heater 7 that heats and keeps the liquid in the container warm, and an energization control member 8 that controls energization to the heater. .

The container 1 consists of an inner wall 9, an outer wall 10, and a bottom plate 11 made of metal such as stainless steel.

The inner wall 9 is integrally formed with a cylindrical inner wall trunk 12 and an inner wall opening 13 which is curved inward from the upper end of the inner wall trunk and whose upper part has a smaller diameter than the inner wall trunk. The inner wall trunk portion 12 is provided with a first annular flange projecting outward at its lower end.

The inner wall opening portion 13 has a male screw 14 on its upper inner periphery for screwing an upper cover 4, which will be described later, and a second annular flange projecting upward at its upper end.

The outer wall 10 is integrally molded with a cylindrical outer wall body 15 spaced apart from the inner wall body 12 by a predetermined distance, and an outer wall mouth part 16 separated from the inner wall mouth part 13 by a predetermined distance. is provided with an outwardly projecting third annular flange that can be joined to the first annular flange of the inner wall body 12 at its lower end.

The outer wall mouth portion 16 has an upper end bent inward, a fourth annular flange projecting upward that can be joined to a second annular flange of the inner wall mouth portion 13 at its tip, and a convex body of a draining member 2 to be described later. An annular groove 18 into which the groove 17 is fitted is provided.

The bottom plate 11 is integrally formed with a bottom plate part 19 and a cylindrical bottom body part 20 that protrudes upward from the outer peripheral end of the bottom plate part, and a discharge member, which will be described later, is attached to the lower end of the front wall of the bottom cylinder body part 20. A connecting pipe 22 communicating between the hollow joint 21 of No. 6 and the inside of the container 1 is welded, and an outwardly protruding fifth annular flange which can be joined to the first annular flange of the inner wall trunk portion 12 is provided at the upper end.

Reference numeral 23 denotes an annular clamping body that clamps the welded portions of the third annular flange of the outer wall trunk, the first annular flange of the inner wall trunk, and the fifth annular flange of the bottom cylinder.

The container 1 is constructed by joining and welding the second annular flange of the inner wall opening 13 and the fourth annular flange of the outer wall opening 16 under atmospheric pressure, and then joining the third annular flange of the outer wall trunk 15 and the fourth annular flange of the inner wall trunk 12. The first annular flange and the fifth annular flange of the bottom cylindrical body portion 20 are sequentially joined and welded together under vacuum while vacuum is applied between the inner wall and the outer wall.

The draining member 2 is made of a synthetic resin material or the like and is integrally molded with an opening wall portion 24 having a central opening communicating with the opening of the container 1 and a shoulder portion 25 covering the outer periphery of the outer wall opening 16.
A protrusion 27 for locking a cover body 26 of the discharge member 6, which will be described later, is provided on the upper front surface of this shoulder.

The lower end of the shoulder portion 25 has an annular groove 1 of the outer wall body portion 15 on the inner periphery.
8 is provided with a convex body 17 that fits therein.

33 is a gasket interposed between the mouth of the container 1 and the lower end of the opening wall portion 24.

The upper lid 4 has a bellows pump 35 that opens at the top, bottom, and center, a push valve 36 that loosely fits into the upper opening of the bellows pump, a spring 37 that presses the push valve from inside the bellows pump, and is placed on the top surface of the bellows pump. A guide plate 38, a lid body 39 containing a bellows pump, a push valve, a spring, and a guide plate, a push plate 40 that slides up and down in the upper center opening of the lid body, and a stopper device that restricts the vertical sliding of the push plate. 41, a lower plate 42 that communicates with the lower opening of the bellows pump and is attached to the inner wall of the lower end of the lid, a packing 43 interposed between the center opening of the lower plate and the lower opening of the bellows pump, and It is provided with a cover plate 44 which is fixed with screws 58 and has an opening at the center which communicates with the lower opening of the bellows pump.

This cover plate 44 is made of a metal material such as stainless steel and covers the entire surface of the lower plate 42 that comes into direct contact with the steam inside the container, except for the opening in the center, and is screwed into the male screw 14 of the inner wall opening 13 on the outer periphery of the lower part. A female screw 45 is provided, and an annular gasket 46 that contacts the opening wall 24 of the draining member 2 is stretched around the upper outer periphery.

The discharge member 6 includes a discharge pipe 47 that discharges the liquid in the container, a liquid volume display tube 48 that communicates with the discharge pipe, a hollow joint 21 that communicates the liquid volume display tube and the connection pipe 22 of the container, and the discharge pipe. , and a cover body 26 that covers the liquid level display tube.

The liquid level display tube 48 is formed of a transparent hollow pipe made of glass or the like, and has a lower end communicating with the connecting tube 22 via a hollow joint 21 in the internal cavity, and an upper end connected to the rear end of the discharge pipe 47. ing.

The discharge pipe 47 has a rear end connected to the upper end of the liquid quantity display tube 48, and the other end serves as a discharge port 50.

The liquid in the container is pumped through the connecting pipe 22 and the hollow joint 2 by pressing the push plate 40 of the upper lid 4 and sending compressed air from the bellows pump 35 into the container.
1. The liquid passes through the liquid volume display tube 48 and the discharge pipe 47 and is discharged from the discharge port 50.

The cover body 26 is cut out at a location located in front of the liquid level display tube 48, and its lower end is connected to a bottom member 5, which will be described later.
It is attached to the front, and the rear part of the upper end is locked to the protrusion 27 of the draining member 2, and the liquid level display tube 48 and the discharge pipe 4 are connected.
7 is fixed.

A through hole is provided at the lower end of the front surface of the cover body 26 so that the discharge port 50 of the discharge pipe 47 projects to the outside.

The bottom member 5 includes an exterior body 51 that covers the peripheral wall of the bottom cylindrical body portion 20 of the container 1, a bottom cover 52 with a central opening that covers the bottom plate portion 19 of the container 1, and a flat plate 53 that closes the central opening of the bottom cover. There is.

The upper end of the exterior body 51 engages with the lower end of the holding body 23,
The lower end is engaged with the upper end of the bottom cover.

A plug 5 for an external power supply is provided on the back of the bottom cover 52.
It is holding 4.

The flat plate 53 is screwed to the outer wall of the bottom panel 19 of the container at a predetermined distance, and the bottom cover 52 and the exterior body 51 are pressed and fixed by the screws.

The heater 7 includes a heater for boiling water and a heater for keeping warm, and each heater is connected to a plug 54 via a lead wire.

The energization control member 8 includes a thermostat 55 that turns off the water heater when it reaches a predetermined temperature, and a thermal lead that senses the temperature of the liquid in the container and intermittently turns on and off the energization to the heat-retaining heater. A switch 56 and a temperature fuse 57 are provided, and the thermostat, thermal reed switch, and temperature fuse are each directly or indirectly connected to the plug 54 via respective lead wires.

The thermostat 55, thermal reed switch 56, and temperature fuse 57 are connected to the bottom panel 1 of the container 1.
9 Fixed to the outside wall.

As described above, in the present invention, an externally protruding discharge pipe is provided at the upper end of the liquid level display tube communicating with the inside of the container, a male thread is provided on the inner periphery of the mouth of the container, and a top lid with a built-in bellows pump is provided. A cover plate is attached to the bottom surface, a male screw and a female screw are provided on the outer periphery of the bottom edge of the cover plate, and the top cover is removably attached to the mouth of the container. It has excellent heat retention because it is screwed onto the inner circumference of the mouth.

Furthermore, since the lower surface of the upper lid, which is in direct contact with the steam inside the container, is covered with a cover plate, corrosion of the lower surface of the upper lid by the steam is completely prevented, and there is no problem even during long-term use.

Furthermore, it has a simple structure, can be easily cleaned by simply removing the top cover when cleaning the inside of the container, and can be manufactured at low cost.

[Brief explanation of the drawing]

The drawing is a longitudinal sectional view of an embodiment of the present invention. A...Electric pot, 1...Container, 4...Top lid,
6...Discharge member, 7...Heater, 9...Inner wall,
10...Outer wall, 11...Bottom plate, 14...Male screw,
35...Bellows pump, 44...Cover plate, 45...
...Female thread.

Claims (1)

[Scope of utility model registration request] Consisting of a metal inner wall, outer wall, and bottom plate, the inner
A vacuum double-walled metal container with vacuum insulation between the outer walls is provided, and a heater for heating and keeping the liquid inside the container is wound around the outer circumference of the bottom plate of the container, and the liquid inside the container is communicated with the side wall of the bottom plate to connect the liquid inside the container to the outside. A discharge member is provided, a male screw is provided on the inner periphery of the mouth of the container, and an upper lid with a built-in bellows pump is provided. This electric pot is characterized in that a cover plate is screwed to the lower surface of the upper lid, and a female screw is provided on the outer periphery of the cover plate to be screwed into the male screw of the container, so that the upper lid can be detachably attached to the mouth of the container.