JPS5931162Y2 - Top lid locking device for pneumatic pot - Google Patents

Description

[Detailed description of the invention] This invention relates to a top lid locking device that uses air pressure to releasably lock the top lid of a pot to the pot body.The purpose of this device is to simplify the structure and reduce the number of assembly parts. To provide a top lid locking device for a pot using air pressure that can be smoothly engaged and detached.

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

An electric bottle (A) that boils water and keeps it warm includes an inner container 2 surrounded by an outer case 1, and a liquid level display device B that is interposed between the inner container and the outer case and displays the amount of liquid in the inner container. , a heat source 3 fixed to the outer case at the lower end of the inner container to heat the liquid in the inner container, a temperature controller C to control the heat source by sensing the temperature of the liquid in the inner container, and a bottom body 4 attached to the lower end of the outer case. , a drain member 5 attached to the upper end of the outer case, an inner stopper 6 detachably attached to the center opening at the upper end of the inner container, and an upper lid 8 that is detachably attached to the upper end of the drain member and has a built-in bellows pump 7. It is configured.

The inner container 2 is made of a corrosion-resistant material such as stainless steel and is formed into a bottomed cylindrical body, with through holes for the joints 15 of the liquid level display device B being bored at both the upper and lower ends of the front side wall, respectively, and large diameter holes. An annular flange 10 bent outward is provided at the upper peripheral end forming the central opening of the inner container, and a corrosion-resistant and heat-resistant annular packing 11 is provided on the lower surface of the annular flange. A locking portion 43 for tightening is provided.

The exterior case 1 has a bottom body 4 attached to its lower end, a drainage member 5 attached to its upper end, and a plug 19 fixed to its rear lower end.
A vertically long through hole is bored in the front side of the exterior case corresponding to the liquid level display tube 12 of the liquid level display device B, and a frame 20 that covers this vertically long hole is fixed to the front surface of the vertically long through hole. .

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

The liquid level display device B is attached to 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 to the lower end of the liquid level display tube. a holder 44,
Attach one end to this holder 44 or the upper end of the liquid level display tube,
A unit member D whose other end is inserted into the through hole of the inner container, a nut 17 and 17 for fixing this unit member from inside the inner container, and a nut 17 and 17 inserted into each through hole of the inner container from the inside and outside of the inner container, respectively. It includes a stretched annular gasket 16.16, a protective tube 45 surrounding the outer periphery of the lower end of the liquid level indicator tube and the upper end of the holder 44 facing this lower end, and a holding fitting 46 for preventing the liquid level indicator tube from shaking. ing.

The liquid level display tube 12 is formed of a transparent pipe made of glass, acrylic resin, etc., and the holder attached to the lower end of the liquid level display tube is a stainless steel pipe bent into an L-shape.

A protective tube 4 connecting this liquid level display tube 12 and a holder 44
5 is formed in a hollow shape from silicone rubber, etc., and has a small diameter part smaller than the inner diameter of the liquid volume display tube and holder in the center of the interior, and the lower end of the liquid volume display tube and the holder are sandwiched between this small diameter part. Pressure is applied to the upper end.

The outer periphery of the protective tube 45 is provided with a locking annular groove for locking a holding fitting to be described later.

Unit 1 has one end attached to the holder.
4 and a joint 15 whose one end is attached to this unit and whose other end protrudes into the inner container from a through hole of the inner container, and this unit 14 is formed in a hollow shape from silicone rubber or the like. One end is attached to the outer periphery of the holder or the outer periphery of the liquid level display.

The joint 15 is formed in a hollow shape from stainless steel or the like, has a threaded part on the outer periphery of the tip, has a flange part on the outer periphery at the rear end of the threaded part, and inserts this threaded part through the through hole of the inner container 2. It projects inside the container and is inserted into the unit 14 so that the outer periphery of the rear end of the flange is in contact with the flange.

The nut 17 is made of a corrosion-resistant material such as stainless steel, and is screwed into the threaded portion of the joint 15 that protrudes inside the inner container.

The annular packing 16 is formed into a donut shape from a material such as silicone rubber, and sandwiches the through-hole circumferential wall of the inner container from the inside and outside in a sandwich manner.

One end of the holding fitting 46 is attached to the outer wall of the lower end of the inner container, and the other end is attached to the outer periphery of the protective tube 45.

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 thermostat C0 and a temperature controller C of a thermal reed switch C2.

This heat source 3 includes a water boiler and heat-retaining lamps 23 at the lower end of the frame.
23, the boiling lamp is lit when boiling water, and the warming lamp is lit when keeping the water warm.

The plug 19 is connected via lead wires to the heat-retaining lamps 22 and 23, the temperature fuse 42, the thermal reed switch C2, the thermostat C1, and the heat source 3.

The drainage member 5 attached to the upper end of the outer case has a large opening at the center, fixes the annular flange 10 of the inner container 2 to its circumferential surface, is provided with an annular rib 24 to which the inner plug 6 can be detachably attached, and has a large opening at the center. A beak portion 26 is provided on which the discharge pipe 25 of the inner stopper is placed, and a hinge portion 27 is provided on the outer wall of the rear end to allow the upper lid 8 to be opened and closed.

This beak 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 claws 30 of the locking device 29 on the top lid are provided on both sides of the center of the beak. .

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

This holding member 50 has a vertical cross section of a ■-shape or a U-shape, and its upper surface abuts against the tightening locking portion 43 of the inner container and is screwed in 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. The annular rib portion 10 and the annular rib 24 are in close contact with each other to prevent liquid leakage between the annular collar portion 10 and the annular rib 24.

The inner stopper 6, which is detachably attached to the opening of the draining member 5, is fixed to the inner stopper main body 31 and the outer periphery of the inner stopper main body, and has an inner cover 32 that closes the large-diameter opening of the inner container, and a lower end attached to the lower part inside the inner container. A lift pipe 3 that hangs down and communicates with the liquid passage 33 of the inner stopper body at its upper end.
4 and a discharge pipe 25 whose tip protrudes from the beak of the draining member to the front of the exterior case 1 and whose rear end communicates with a water pump 34 via a liquid passage 33 of the inner stopper main body.

The upper lid 8, which is attached to the upper end of the draining member 5 so as to be openable and closable, has a bellows pump 7 which is open 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 rubber bushing 35, and a rear end of the draining member. A fixed hinge device 27 for opening and closing the top lid, and a locking claw 3 that engages with the locking claw 28 of the draining member.
0, the lid body 37, the bushing valve 38 locked in the opening at the center of the top end of the bellows pump, the spring 39 pushing up the bushing valve from inside the bellows pump, and the lid body 37. The center opening can be moved up and down freely,
It includes a pusher body 40 that comes into contact with the upper end of the bushing valve to supply air in the bellows pump into the inner container through the inner plug, and a stopper device 41 that restricts the vertical movement of this pusher body.

The lid body 37 has an opening at the center of the upper surface, a cylindrical body part 74 is provided by hanging down the wall surface of this central opening, and four parts on the rear end of the upper surface of the cylindrical body part in which the push button of the pusher stopper device 41 is installed. A through hole 75 for a knob of the locking device 29 is provided in the opening, and a guide portion 76 is provided inside the front surface of this through hole.

As shown in FIG. 2, this guide portion 76 is provided with a horizontal guide surface 77 that facilitates the back and forth sliding of a slide member, which will be described later.

The lower plate 36 covers the lower opening of the lid 37 and is attached to the lid 3.
7 is locked or force-fitted to the inner periphery of the lower end, and has an open lower 1 in the center that communicates with the air outlet 69 of the bellows pump 7, and an opening for leading out the outlet of the discharge pipe 25. The beak portion 26 of the draining member 5 extends forward so as to cover the drain member 5.
A long hole 78 is bored at the tip of the lower plate corresponding to the locking pawl 30,
A rib 80 for locking the spring 79 of the locking device is vertically provided inside the rear part of the elongated hole.

This elongated hole 85 has a length corresponding to the distance that the lock pawl 30 (to be described later) slides back and forth, and is formed with a width slightly larger between the left and right sides than the distance between the left and right sides of the lock pawl.

The bellows pump 7 is thickened inwardly from the upper and lower ends of the bellows part, and has an open center at the top as an air supply port, and an open center at the bottom as an air discharge port.

The locking device 29 that engages and disengages the upper lid 8 from the draining member 5 includes a slide member 81 having a locking claw 30 that engages with the locking claw 28 of the draining member, and a spring that constantly presses the slide member against the inside front of the lid 37. It consists of 79.

As shown in FIG. 3, this slide member 81 has a lock pawl 30 penetrating through a long hole 78 in the lower plate on both sides of the front end of a slide part 82 that can slide back and forth along a guide surface 77 of a guide part 76 inside the lid. A vertical portion 83 is provided at the rear end, and a horizontal knob 84 passing through the through hole 75 of the lid is provided at the upper end of this vertical portion. A long hole 85 is bored so as not to come into contact with the rib 80 of the lower plate 36 when sliding.

The spring 79 has one end engaged with the rib 80 of the lower plate and the other end engaged with the front surface of the slide portion 82 of the slide member 81 to constantly press the slide member forward.

In this locking device 29, the upper front surface of the lock claw 30 passing through the elongated hole 78 of the lower plate comes into contact with the front wall surface of the elongated hole 78 of the lower plate, thereby regulating the pressing force of the spring 79. Together with the guide surface 77 inside the lid 37, the sliding member 81 is restricted from swinging back and forth, left and right, and up and down.

Next, the operation of the locking device will be described.

First, when the knob 84 of the slide member 81 protruding outside the lid body 37 is pressed horizontally toward the inside of the lid body, this slide member resists the pressing force of the spring 79 and moves along the guide surface 77 of the guide portion 76 inside the lid body. and slide smoothly in the horizontal direction.

Therefore, the locking pawl 30 that was locked to the locking pawl 28 of the draining member 5 is disengaged from the locking pawl, and by lifting the top cover 8 while pressing this knob 84, the draining member 5 is released.

Next, to lock, press the knob 84 in the same way as when opening and bring the lower surface of the top cover 8 into contact with the upper surface of the draining member 5. When the knob is released, the sliding member is moved along the guide surface 77 by the pressing force of the spring. Move it toward the front of the lid body,
The locking claw 30 at the tip of the slide member is the locking claw 2 of the draining member.
It is locked at 8.

Although the drawing describes an electric kettle that heats and keeps warm, the present invention is not limited to this electric kettle, and there is no problem with other pots that utilize air pressure.

As described above, in the present invention, a through hole for a knob is bored in the front surface of the lid body, a guide member is provided inside the front surface of the through hole for the knob, and a guide member is provided for leading out the discharge port of the discharge pipe. A lower plate that covers the lower opening of the lid body is extended to the front of the lid body so as to cover the upper part of the opening, and a long hole for the lock claw is bored in the front of this lower plate. A spring rib is installed inside the rear end of the elongated hole, a locking pawl hangs down from the front end, and a sliding member with a knob hanging down is installed at the rear end.One end is locked to the rib on the lower plate and the other end The spring attached to the slide member constantly pushes the slide member forward, the knob of the slide member protrudes from the inside through the hole in the lid, and the locking claw passes through the long hole in the lower plate to lock the drainer member. Since it is removably locked to the pawl, the structure is extremely simple and the number of assembly parts is extremely small.It is also easy to install the spring for pressing the slide member, and the spring can be easily removed when the lower plate is fitted. There is no fear of separation, and assembly is extremely easy.
Manufacturing costs can be greatly reduced, and the lower plate can effectively block steam entering through the opening for leading out the discharge port of the discharge pipe.

In addition, the elongated hole has a length corresponding to the distance that the lock claw slides back and forth, and has a shape with a width between the left and right sides that is slightly larger than the distance between the left and right sides of the lock claw, and the sliding member is connected to the lid body and the guide member. Since the front surface of the central part of the locking pawl is in contact with the horizontal surface of the bottom plate and the wall of the elongated hole on the lower plate, vertical, longitudinal, and horizontal rattling is prevented, allowing the slide member to slide smoothly in the longitudinal direction. Since the slide member is pressed forward by the spring at the same time as tightening, the slide member can be moved rearward only against this spring, so that it can be reliably locked.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the present invention, FIG. 2 is an enlarged longitudinal cross-sectional view showing essential parts of the present invention, and FIG. 3 is a perspective view showing a slide member of the embodiment of the present invention. 1...Outer case, 2...Inner container, 5
...Draining member, 6...Inner stopper, 7...
...Bellows pump, 8...Top lid, 25...
...Discharge pipe, 26...Beak, 28...
...Latching claw, 29...Lock device, 30...
... Lock claw, 34 ... Lifting pipe, 36 ...
... Lower plate, 37 ... Lid body, 75 ...
Through hole, 76... Guide part, 77... Guide surface, 78... Elongated hole, 79... Spring, 80... Rib , 81...Slide member, 82...Slide portion, 83...
...Vertical section, 84...Knob, 85...
・Long hole.

Claims (1)

[Scope of utility model registration request] A draining member with a front beak is fitted to the upper end of the outer case surrounding the inner container, a locking claw is provided on the side of the beak, and an inner stopper is removably attached to the center opening of the draining member. A top lid with a built-in bellows pump is attached to the top end of the member so that it can be opened and closed, and compressed air from the bellows pump is supplied to the inner container via the air passage in the inner plug by the pressure of the bellows pump, pumping up the liquid in the inner container. In a pot that uses air pressure to discharge liquid to the outside of the pot via a pipe, a liquid passage in the inner stopper, and a discharge pipe, a through hole for a knob is bored in the front surface of the lid body of the above-mentioned top lid, and a guide is provided inward on the front surface of this through hole. At the same time, an upper plate covering the lower opening of the lid body is provided in front of the lid body so as to cover the upper part of the opening for leading out the discharge port of the discharge pipe, and a locking claw is provided in front of the lower plate. A long hole is drilled for the purpose, and a rib for spring locking is placed vertically on the inside of the rear surface of this long hole, and a locking pawl is suspended from the front end, a knob is placed vertically at the rear end, and A slide member that can freely slide back and forth is provided, one end is locked to a knob on the lower plate, the other end is locked to the slide member, and a spring is tensioned to constantly press the slide member forward. The hole is formed with a length corresponding to the distance that the lock claw slides back and forth, and a width between the left and right sides that is slightly larger than the distance between the left and right sides of the lock claw, and the above-mentioned knob protrudes outward from the through hole in the lid body. A top lid locking device for a pot using air pressure, characterized in that the locking pawl is inserted through a long hole in the lower plate and releasably locked to a locking pawl of a draining member.