JPH0314125Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an inner stopper for a pot that utilizes air pressure.

<Conventional technology> Conventionally, pots using air pressure have a drainage member connected to the upper end of an outer case surrounding the inner container, a bottom member connected to the lower end, and an upper lid case with a built-in bellows pump attached to the upper end of the drainage member to open and close. The inner plug is installed freely and consists of a pumping pipe that hangs down inside the inner container, a discharge pipe that is guided to the outside from the front of the draining member, an inner plug body, and a lower lid of the inner plug body that covers the lower surface of the inner plug body. Inside the stopper body, there is provided a liquid passage in the inner cylinder that communicates with the pumping pipe and the discharge pipe, as well as an air passage in the outer cylinder that communicates with the bellows pump and the inside of the inner container. However, if this type of pot falls over, the liquid inside the inner container will flow out from the tip of the discharge pipe, which may wet the place where the pot is placed and cause burns. It was hot. For this reason, a water stop valve is installed in the liquid passage inside the inner stopper to prevent the liquid inside the inner container from leaking when the pot falls over, but the inner stopper is compact and the inner stopper itself is In order to provide a water stop valve body inside this compact inner stopper while maintaining its compact size, the structure is complicated, and the number of parts is large.In addition, due to the compact size, assembly is extremely complicated. Furthermore, since the inner plug body is divided into an inner cylinder for a liquid passage and an outer cylinder for an air passage, the structure of the inner plug body is extremely complicated and difficult to mold.
Furthermore, the liquid passage opening was not sufficiently closed by the water stop valve, and it was not possible to reliably prevent liquid leakage.

<Purpose of the invention> The present invention has been made in view of the above points.The inner stopper itself is compact, has a simple structure, has a small number of parts, and is easy to assemble.It also ensures the flow of water in the event of a fall. To provide a stopper inside the pot that prevents the use of air pressure.

<Structure of the invention> According to the invention, an inner cylinder for a liquid passage having a liquid passage opening communicating with a discharge pipe in the inner stopper body, and an outer cylinder for an air passage having an air passage communicating with a bellows pump. A donut-shaped top plate having an outer diameter larger than the diameter of the liquid passage opening of the inner cylinder and a central opening having a diameter smaller than the diameter of the liquid passage opening is provided in the inner cylinder, while a donut-shaped top plate is provided on the lower lid for the inner stopper. An upper cylinder part is provided with a plurality of guide ribs vertically disposed inside the front part and fitted into the inner cylinder of the inner stopper body, and a lower cylinder part penetrates through the lower lid for the inner stopper and communicates with the inside of the upper cylinder part. The upper end of the pumping pipe is installed in the lower cylinder part, and an inverted truncated cone-shaped water stop valve element that slides up and down via a guide rib is installed in the upper cylinder part. This objective is achieved simply by closing the central opening of the plate to the top of the water stop valve.

<Example of idea> Embodiments of the present invention will be described below with reference to the drawings.

The pot 1 includes an inner container 2, an outer case 3 surrounding the inner container, a drainage member 4 connected to the upper end of the outer case, and a bottom member 5 connected to the lower end of the outer case.
It is composed of an inner stopper 6 which is detachably attached to the central opening of the drainer, and an upper lid case 7 which is attached to the upper end surface of the drainer so as to be openable and closable.

The inner container 2 is a single bottle made of glass or a metal material such as stainless steel, or a vacuum double bottle. 8 is a protector.

The exterior case 3 is made by folding a thin iron plate into a cylindrical shape, bending the upper end inward, fitting a threaded ring 9 into the lower part, and curling the lower end inward.

As shown in Fig. 1, the draining member 4 consists of a substantially cone-shaped receiving part with an opening in the center, a fitting part hanging downward from the tip of the receiving part, and a beak part projecting forward of the receiving part. There is. The beak of the draining member recesses the front surface of the receiving portion and communicates with the central opening of the receiving portion. The central opening of the receiving portion of the draining member communicates with the inside of the inner container via a seal packing 13 at the two mouths of the inner container. An annular groove into which the bent portion of the upper end of the outer case is fitted is bored in the outer circumferential wall of the fitting portion of the draining member. The beak of the draining member has an opening at its tip through which the discharge pipe described below is inserted, and on the inside of the left and right side walls there are locking pieces for locking the locking claws of the locking device of the upper lid case, which will be described later. It is set up.

The bottom member 5 consists of a ring-shaped bottom plate 14 that is screwed onto a threaded ring 9 inside the lower end of the outer case, and a tightening member 15 that is screwed into the center opening of the bottom plate and pushes up the inner container.

The inner stopper 6 includes an inner stopper main body 16, a lower lid 17 for the inner stopper that covers the lower surface of the inner stopper main body, a pumping pipe 18 that pumps the liquid inside the inner container into the inner stopper main body, and a pipe that transports the liquid inside the inner stopper main body to the front of the pot. It consists of a discharge pipe 19 for discharging to the outside, and a water stop valve body 21 inside the inner stopper body.

As shown in FIG. 2, the inner plug main body 16 has a closed upper surface and a liquid passage port 22 communicating with the discharge pipe 19.
an inner cylinder 23 for a liquid passage bored at the front upper end;
An air passage outer cylinder 25 with an air passage opening 24 bored at the rear upper end that communicates with the bellows pump, and a connecting pipe 26 that communicates with the liquid passage opening forward from the upper surface of the liquid passage opening are integrally molded. .

As shown in FIGS. 2 and 3, the lower lid 17 for the inner plug includes a cover portion 28 on a disk, an upper cylinder portion 29 that comes into contact with the lower part of the inner cylinder of the inner plug body, and a cover portion of the upper cylinder portion. A lower cylindrical portion 30 that tightly connects the upper end of the pumping pipe 18 at the lower end is integrally molded. The cover part 28 of the lower lid for the inner stopper has a plurality of small holes 31, 31 for air passages communicating with the inside of the outer cylinder 25 of the inner stopper body on the rear peripheral surface, and the inner circumference of the lower end of the inner stopper body. It is attached closely to the

The lower cylindrical portion 30 fits the upper end of the pumping pipe into the lower cylindrical portion 30 and communicates with the pumping pipe, passing through the covering portion 28 and communicating with the inside of the upper cylindrical portion 29 .

As shown in FIGS. 1 and 2, the upper cylindrical portion 29 of the lower lid for the inner plug has an internal hollow space as a liquid passage, an outer circumferential wall in close contact with the inner tube 23 of the inner cap body, and an inner circumferential wall. A plurality of guide ribs 27 for guiding the water stop valve body 21 are provided upright at predetermined intervals.

As shown in FIGS. 2 and 3, the water stop valve body 21 is formed of a material such as stainless steel and has an inverted truncated cone shape, and is placed on guide ribs 27 and 27 in the upper cylinder portion 29. There is.

A top plate 20 is provided above the water stop valve body between the inner upper part of the upper cylinder part 29 and the upper wall of the inner cylinder 23 of the inner plug body 16. As shown in Figures 2 and 3, this top plate is a donut-shaped top plate whose outer diameter is connected to the upper cylindrical part 2.
9 and larger than the diameter of the liquid passage opening 22 of the inner cylinder, and the diameter of the central opening is formed smaller than the diameter of the liquid passage opening.

The lower end of the pumping pipe 18 is vertically disposed at the inner bottom of the inner container, and the upper end is fitted into the lower cylindrical portion 30 of the lower lid 17 for the inner plug.

The rear end of the discharge pipe is fitted into the tip of the connecting pipe 26 of the inner stopper main body 16, and the tip is inserted into the opening of the beak of the draining member.

The upper lid case 7 is swingably supported by a hinge member, and is attached to a draining member by a locking claw of a locking device so as to be openable and closable, and includes a bellows pump 32 and a first spring 33 that pushes up the bellows pump.
, a push valve 34 for opening and closing the upper opening of the bellows pump, a control lever 35 and a push lever 36 for pushing the push valve and forcefully feeding the air inside the bellows pump into the inner container; The lower surface is covered with a lower plate 37, and the central opening of the lower plate has a rubber bush 3 that communicates with the air passage opening of the inner plug body.
8 is inserted.

Lifting pipe 18 by pressure of bellows pump 32
The liquid rising inside passes through the lower cylinder part 30 and cover part 28 of the lower lid for the inner stopper, and then passes through the upper cylinder part 2 in the inner cylinder 23 of the inner stopper main body.
Enter 9. The liquid in this upper cylinder passes between the plurality of guide ribs 27, 27 and the water stop valve body 21, rises, passes through the central opening of the top plate 20, passes through the liquid passage port 24 of the inner cylinder 23, and enters the connecting pipe 26. It is guided through the discharge pipe 19 and discharged from the tip of the discharge pipe.

When the pot falls over, the water stop valve body 21 moves to the guide rib 27,
The top plate 20 is brought into close contact with the upper wall surface of the inner cylinder 23 which slides in the upper cylinder part 29 via the inner cylinder 27 and forms a liquid passage opening, and the liquid passage opening 22 is narrowed by the central opening of the top plate 20. At the same time, the upper surface of the water stop valve body 21 comes into contact with the lower surface of the top plate 20, closing the central opening of the top plate and reliably preventing the liquid from flowing into the liquid passage port 22, the connecting pipe 26, and the discharge pipe.

<Effects of the invention> In the present invention, the upper cylinder part of the lower cover for the inner stopper is fitted into the inner cylinder of the inner stopper body, a water stop valve body is provided in this upper cylinder part, and a top plate is placed on top of the upper cylinder part. Because of this, the structure is simple and the number of parts is small, and the inner stopper itself is as compact as conventional inner stoppers, and all you have to do is install the cylinder body loaded with the water stop valve element inside the inner cylinder of the inner stopper body. Therefore, the work can be done extremely easily despite the narrow assembly range. In addition, in the event of a fall, after narrowing the liquid passage in the inner cylinder of the inner stopper body with the top plate,
Since the water stop valve body is in contact with the top plate, the liquid passage can be closed and leakage can be reliably prevented.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view of an embodiment of the present invention, FIG. 2 is a partial longitudinal sectional view of the inner stopper of the embodiment of the invention, and FIG. 3 is an exploded perspective view of the inner stopper of the embodiment of the invention. 1... Pot, 2... Inner container, 3... Outer case, 6... Inner stopper, 16... Inner stopper body, 17... Lower cover for inner stopper, 18... Lifting pipe, 19... Discharge pipe , 20...Top plate, 21...Water stop valve body, 23...
... Inner cylinder, 25 ... Outer cylinder, 27 ... Guide rib, 29
...Upper tube section.

Claims (1)

[Scope of utility model registration request] A drainage member is connected to the upper end of the outer case that surrounds the inner container, a bottom member is connected to the lower end, and an upper lid case with a built-in bellows pump is attached to the upper end of the drainage member so that it can be opened and closed. An inner stopper is provided, which consists of a discharge pipe led to the outside from the front of the pipe and drainage member, an inner stopper body, and a lower cover for the inner stopper that covers the lower surface of the inner stopper body, and the inner stopper body communicates with the water pumping pipe and the discharge pipe. liquid passages and bellows pumps,
In a pot that uses air pressure, an air passage communicating with the inside of the inner container is provided, and the liquid in the inner container is discharged from the tip of the discharge pipe through the inner plug by pressure from a bellows pump. An inner cylinder for a liquid passage having a communicating liquid passage opening and an outer cylinder for an air passage having an air passage communicating with a bellows pump are provided, and an outer cylinder having a diameter larger than the diameter of the liquid passage opening of the inner cylinder is provided. A donut-shaped top plate is provided which has a central opening with a diameter smaller than the diameter of the inner stopper and the diameter of the liquid passage opening, while a plurality of guide ribs are provided inside the upper front part of the lower cover for the inner stopper, and An upper cylinder part that fits into the inner cylinder and a lower cylinder part that passes through the lower lid for the inner plug and communicates with the inside of the upper cylinder part are provided, and the upper end of the pumping pipe is installed in the lower cylinder part, and An inverted truncated cone-shaped water stop valve that slides up and down via a guide rib is provided, and the center opening of the top plate that comes into contact with the liquid passage opening when the pot falls is closed by the top of the water stop valve. The inner stopper of the pot is characterized by the use of air pressure.