JPS5934424Y2 - Electric pot using air pressure - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electric kettle that uses air pressure to heat and keep warm.

Conventionally, there has been an inner container surrounded by an outer case, a heat source that heats and maintains the temperature of the liquid in the inner container, a draining member attached to the upper end of the outer case, and a medium removably attached to the center opening of the draining member. An electric pot that uses air pressure is equipped with a stopper and a top lid with a built-in bellows pump attached to the upper end of the draining member so that it can be opened and closed, and the liquid inside the inner container is discharged to the outside through the inner stopper by pressure from the bellows pump. It consists of an inner stopper body equipped with a lift pipe and a discharge pipe communicating with the lift pipe, and an inner cover that covers the steam contact surface of the inner stopper body and opens and closes the central opening of the draining member. A ring-shaped gasket was attached to the inner cap of this type of electric pot, but when the bellows pump is pressed, the steam pressure inside the inner container is high, and the annular gasket attached to the inner lid detaches from the inner lid, causing air leakage. When the phenomenon of (・) occurred, there was a drawback.

The present invention was devised in view of the above-mentioned drawbacks, and the object is to provide an electric kettle using air pressure that has a simple structure, is easy to assemble, and does not leak air.

Embodiments of the present invention will be described below with reference to the drawings.

A is an electric bottle that uses air pressure to boil water and keep it warm.A is an inner container 2 surrounded by an outer case 1, and a liquid level display device that is interposed between the inner container and the outer case and displays the amount of liquid in the inner container. B, a heat source 3 that is fixed to the outer wall at the lower end of the inner container and heats the liquid in the inner container, a temperature regulator C that controls the heat source by sensing the temperature of the liquid in the inner container, and a bottom body attached to the lower end of the outer case. 4, a draining member 5 attached to the upper end of the outer case, an inner stopper 6 detachably attached to the center opening of the draining member, and an upper lid 8 that is detachably attached to the upper end of the draining member and has a built-in bellows pump 7. has been done.

The inner container 2 is formed into a bottomed cylinder made of a corrosion-resistant metal material such as stainless steel, and has through holes 9 for the joints 15 of the liquid level display device B at each end on the front side wall. an annular collar 1 bent outward at the upper end forming a central opening;
0, a corrosion-resistant and heat-resistant annular packing 11 is provided on the lower surface of the annular collar, and a locking portion 43 for tightening the inner container is provided on the outer wall of the bottom of the inner container.

The exterior case 1 has a bottom body 4 attached to its lower end and a draining member 5 attached to its upper end. A plug (not shown) is fixed to the rear lower end, and a vertically extending body is attached to the front side of the exterior case corresponding to the liquid level display tube 12. A through hole is bored, and a frame 20 covering the vertically long hole is fixed to the front surface of the vertically long hole.

This frame body 20 is provided with a vertically long see-through window through which the vertically long liquid level display tube 12 can be seen through one vertically long hole of the exterior case 1, and is provided with lamps 22 and 23 for boiling water and keeping warm at its lower end surface. A transparent glass or transparent resin plate is fitted into the transparent window.

The liquid level display device B includes a liquid level display tube 12 that is placed between the inner container 2 and the vertically long through hole of the outer case 1 to display the liquid level in the inner container, and one end of which is attached to the liquid level display tube. and a joint 15 whose other end is inserted into the through hole of the inner container.

The liquid quantity display tube 12 is formed of a transparent pipe made of glass, acrylic resin, or the like.

The joint 15 is hollow and made of silicone rubber or the like.

A heat source 3 for heating the liquid in the inner container is fixed to the outer periphery of the lower end of the inner container, and is controlled by a temperature regulator C consisting of a thermostat C1 and a thermal reed switch C2.

The heat source 3 includes a water boiler at the bottom of the frame, heat-retaining lamps 22,
23, and the lamp for boiling water is turned on when boiling water, and the lamp for keeping warm is turned on when keeping it warm.

A plug (not shown) is connected to the water boiler, heat-retaining lamps 22, 23, temperature fuse 42, thermal reed switch C2, thermostat C1, and heat source 3 via lead wires.

The draining member 5 attached to the upper end of the outer case has an open center, fixes the annular flange 10 of the inner container 2 to that surface, has an annular rib 24 on which the inner stopper 6 can be detachably attached, and has a middle opening on the front surface. A throat part 26 is provided on which the discharge pipe 25 of the stopper is placed, and a hinge part 27 is provided on the outer wall of the rear end to allow the upper lid 8 to be opened and closed.

This throat part 26 has an opening at its tip that allows the discharge port of the discharge pipe 25 to protrude to the front of the exterior case, and locking claws 28 for locking the locking device 290 and the locking claws 30 of the upper lid are provided on both sides of the center of the beak. There is.

The bottom body 4 is provided with an inner container holding member 50 inside.

This holding member 50 has a two-shaped or U-shaped longitudinal section, and its upper surface abuts against the tightening locking portion 43 of the inner container and is screwed with a screw, and its lower surface abuts against the inner wall of the bottom. It is screwed onto the outer wall of the body with screws.

By tightening the screws on the outer wall of the bottom body, the inner container 2 is pushed down and at the same time, the draining member at the upper end of the outer case and the bottom body at the lower end are fixed to the outer case, and the annular collar 10 of the inner container is connected to the annular rib 24 of the draining member. This prevents liquid leakage between the annular collar 10 and the annular rib 24.

The inner stopper 6 includes an inner cover 32 for opening and closing the central opening of the inner container, an inner stopper main body 13 having a discharge pipe 25, and a water pumping pipe 34.

The inner plug main body 13 consists of an upper plate member 33 and a lower plate member 31, and this upper plate member 33 has an upper plate outer cylinder 33a communicating with the exhaust port of the bellows pump γ in the upper lid, a water pumping pipe 34, and a discharge pipe 25. An upper plate inner cylinder 33b communicating with the upper plate outer cylinder and an upper plate annular flange 33c on the outer periphery of the upper plate outer cylinder are integrally molded.

The lower plate member 31 has a flange 3 that fits into the inner periphery of the lower end of the upper plate outer cylinder.
1a, a lower plate inner cylinder 31b that fits on the outer periphery of the upper plate inner cylinder, and a lifting pipe cylinder 31c that fits the rear end of the lifting pipe at the lower end of the lower plate inner cylinder, are integrally molded. A plurality of exhaust port holes 31d communicating with the cavity between the inner cylinder and the plate are bored in the flange.

The lift pipe 34 is made of a corrosion-resistant material such as stainless steel, and has an annular projection 51 on the outer periphery of the upper part, a trumpet-shaped part 52 at the upper end, a lower end hanging down inside the inner container, and an upper trumpet-shaped part. 52 is fitted into the lifting pipe cylinder of the lower plate member of the inner plug main body and communicates with the lower plate inner cylinder and the upper plate inner cylinder.

The discharge pipe 25 is made of a corrosion-resistant material such as stainless steel or resin, and has a discharge port at the tip protruding from the front of the outer case.
The rear end is fitted to the outer periphery of the upper inner cylinder and communicates with the water pump 34 via the upper inner cylinder and the lower inner cylinder.

The inner lid 32 is made of a heat-resistant and corrosion-resistant material such as stainless steel and has a ring shape with a central opening, and the outer periphery of the ring shape is bent into a hook shape to form a hook-shaped portion 5.
3, and an annular packing 35 for the inner lid is stretched at the most annular end.

The inner lid 32 has a central opening with a diameter equal to or slightly larger than the outer diameter of the lift pipe 34 and is inserted from the lower end of the lift pipe, beyond the annular projection 51 of the lift pipe and between the lower surface of the main body and the annular projection 51. is embedded in.

Reference numeral 54 denotes a rib that is integrally molded with the inner lid 32 and prevents the inner lid from rattling from the inner plug body.

55 is a spring washer that connects the lower surface of the inner lid 32 and the water pump 34.
The inner cover is fitted between the top surface of the annular projection 51 and prevents the inner cover from coming off or rattling from the water pump.

As shown in FIG. 2, this annular packing 35 for the inner lid has a horizontal portion 56 that comes into contact with the upper surface of the annular flange 10 that forms the central opening of the inner container 2, and a hook of the inner lid 32 inside this horizontal portion. An inclined part 57 that contacts the outer periphery of the mold part 53 and a skirt part 58 that slightly expands outward from the lower end of the hook-shaped part 53 of the inner lid at the lower end of this inclined part are integrally molded, and the upper internal force of this horizontal part is applied. An annular groove 59 is provided into which the outermost peripheral end of the hook-shaped portion 53 of the lid fits.

The upper lid 8, which is attached to the upper end of the draining member 5 so as to be openable and closable, is fixed to the bellows pump 7 which opens at the center of the upper and lower ends, a lower plate 36 to which the center of the lower end of the bellows pump is attached via a packing, and the rear end of the draining member. a hinge device 60 for opening and closing the top lid, a top lid locking device 29 equipped with a lock claw 30 that locks on a draining member, a lid body 37, a bushing valve 38 that locks in the opening at the center of the top end of the bellows pump, and a A spring 39 that pushes up the bushing valve further; and a pusher body 40 that is freely movable up and down within the center opening of the lid body and contacts the upper end of the bushing valve to supply air in the bellows pump into the inner container through the inner stopper. and a stopper device 41 that restricts the vertical movement of this pushing body.

As described above, in the present invention, an annular packing for the inner lid is formed by integrally molding a horizontal portion, an inclined portion, and a skirt portion, and the hook-shaped portion of the inner lid is located inside the upper part of the horizontal portion. Since it has an annular groove into which the outer peripheral end can be inserted, the structure is simple and assembly work is very easy.When the bellows pump is depressed, the lower ends of the skirt and inclined parts expand due to the air and steam pressure in the inner container. The annular gasket comes into contact with the inner circumference of the upper part of the inner container, so the annular gasket does not come off from the inner lid like in the past. It can be prevented.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view of an electric kettle according to an embodiment of the present invention, and FIG. 2 is an exploded vertical cross-sectional view showing the main parts of the present invention. A...Electric pot using air pressure, 1...
・Outer case, 2... Inner container, 3...
Heat source, 5...Draining member, 6...Inner stopper,
7...Bellows pump, 8...Top lid,
10... Annular flange of inner container, 13...
Inner stopper body, 25...Discharge pipe, 32...
Inner lid, 34... Lifting pipe, 35... Annular packing, 53... Hook-shaped part of inner lid, 56...
...Horizontal part, 57...Slope part, 58...
- Skirt portion, 59... annular groove.

Claims (1)

[Scope of utility model registration request] A bottomed inner container surrounded by an outer case, a heat source for heating and keeping the liquid in this inner container warm, a drainage member attached to the upper end of the outer case, and a detachable member attached to the center opening of the inner container. An electric pot comprising an inner stopper and a top lid with a built-in bellows pump attached to the upper end of the outer case so as to be openable and closable, and which discharges the liquid in the inner container to the outside of the pot body through the inner stopper under pressure of the bellows pump, The inner stopper has an inner stopper body equipped with a lift pipe and a discharge pipe communicating with the riser pipe, and an annular hook-shaped part on the outer periphery that covers the steam contact surface on the lower side of the inner stopper main body, and opens and closes the central opening of the inner container. It consists of an inner lid, on the outer periphery of the inner container, a horizontal part that contacts the annular flange forming the central opening of the inner container, an inclined part that contacts the outer periphery of the hook-shaped part of the inner container, and a lower end of this inclined part. It is characterized in that it is integrally molded with a skirt part that slightly expands outward, and an annular packing provided with an annular groove into which the outer peripheral end of the hook-shaped part of the inner lid fits is stretched over the internal force of the upper part of this horizontal part. Electric kettle that uses air pressure.