JPS5924265Y2 - air pot - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an air pot that pressurizes and discharges liquid inside a container using an air pump.

Generally, this type of air pot is provided with a lid so as to close the open top surface of a container containing liquid, and an air pump is installed inside the lid.

Further, a mounting recess is formed on the upper surface of the lid, and a pusher member having a vertically disposed shaft is provided in the mounting recess so as to be movable up and down.

Then, when the pushing body is pressed and lowered, the shaft body vertically installed on the pushing body presses the air pump and activates it.
Pressurized air discharged into the container from this air pump causes the liquid in the container to be discharged.

By the way, in an air pot with such a configuration,
If the pushing body falls freely when the pushing body is pressed by mistake, there is a risk that hot water may be unexpectedly discharged.

Therefore, there is a need for a safety mechanism that prevents the pusher from activating the air pump even if the pusher is accidentally pressed when not in use.

However, the conventional safety mechanism is a manual type in which a lever is provided on the lid body to restrict the lowering of the pusher, and the lever cannot be operated after use to prevent the pusher from lowering. there were.

Therefore, it is possible to forget to operate the lever after use, and in such a case, there is a risk that hot water may be unexpectedly discharged.

The present invention was developed based on the above-mentioned circumstances, and its purpose is to automatically lock the pushing body by releasing the pressing operation of the pushing body, thereby preventing careless external force. To provide an air pot which eliminates the danger of hot water being discharged.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In the figure, 1 is a cylindrical case with a bottom and an open top.

An inner lid 2 is provided on the top surface of the case 1 so as to close the top opening.

A water supply port 3 is formed in the inner lid 2, and a stopper 4 is detachably fitted into the water supply port 3 via a backing 5.

A retaining plate 6 is horizontally provided on the inner bottom of the case 1 by a pair of retaining members 7, and the retaining plate 6 has a bottomed cylindrical shape with a smaller diameter than the case 1 and an open top. A metal container 8 is placed with its bottom surface joined together.

A flange 9 is curved at the upper edge of the case 1, and this flange 9 is airtightly fitted into a groove 10 formed around the lower surface of the inner lid 2 via a backing 11, and a presser member 11 a is held in

Further, a heater 12 is attached to the lower outer peripheral surface of the container 8.

This heater 12 includes a heating coil 13 and a heat retention coil 1.
4 are electrically connected in parallel and built-in, and these coils 13 and 14 are switched and controlled by a temperature controller 14a connected to the outer bottom surface of the container 8. There is.

The heater 12 is electrically connected to a magnetic plug receiver 15 provided on the lower circumferential surface of the case 1 via the temperature controller 14a.

A plug 16 is connected to the magnetic plug receiver 15 by magnetic force.

This plug 16 is connected to a power source (not shown) via a cord 17.

Therefore, if your foot accidentally gets caught on this cord 17, the plug 16 will be removed from the magnetic plug receiver 15.
Since it can be easily removed from the case, the case 1 will not fall over.

Furthermore, a heat insulating material 18 is filled between the inner circumferential surface of the case 1 and the outer circumferential surface of the container 8.

On the other hand, an outer cover 19 is rotatably connected to the inner cover 2 by a shaft 20.

This outer lid 19 and the inner lid 2 each have a protruding portion 19a.
, 2a are formed.

A hook 20 that engages with a locking part (not shown) protruding from the protrusion 2a of the inner cover 2 is pivotally supported on the protrusion 19a of the outer cover 19, and is biased by a spring 21. The outer lid 19 can be opened by pressing and rotating the hook 20 in the direction of the arrow to disengage it from the locking portion.

In addition, a connection port 22 is formed in the inner lid 2, and a conduit 23 whose lower end faces the inner bottom of the container 8 is provided in the connection port 22.
is connected.

This conduit 23 communicates with an outlet path 24 formed on the upper surface of the inner lid 2 via the connection port 22 .

The tip of this lead-out path 24 is opened downward from the protrusion 2a of the inner lid 2.

Further, a conical closure 25 is provided in the connection port 22 so as to be movable up and down to form a check valve mechanism, and when the case 1 is folded down, the closure 25 moves and the outlet passage 2 A through hole 2b formed in the inner lid 2 communicating with the conduit 23 is closed to prevent liquid such as hot water contained in the container 8 from flowing out.

Further, inside the outer lid 19, a mounting plate 28 is provided whose lower surface is hermetically joined to a wall portion 26 which is annularly projecting from the upper surface of the stopper 4 via a backing 27.

A bellows 29 constituting an air pump is provided on the upper surface of this mounting plate 28, with its lower end connected.

A spring 30 is housed inside the bellows 29, and an upper plate 31 is attached to the upper end.

Further, the outer lid 19 is formed with a mounting recess 32 whose top surface is open.

The bottom plate 33 of the mounting recess 32 has a central portion bulged upward, and a housing recess 34 is formed on the lower surface thereof.

Further, in the mounting recess 32, a push body 35 formed in a hat shape is provided.
is provided.

A plurality of control pieces 36 are provided on the peripheral wall of this pushing body 35.
・is formed.

The width of the control piece 36 is slightly smaller than the width of the control piece 36 drilled in the periphery of the mounting recess 32 only when the pushing body 35 is rotated by a predetermined angle and pressed. The pushing body 35 can be lowered by passing through a long through hole 37.

That is, the inner surface of the control piece 36 is provided with a pair of ribs 38 for reinforcing the control piece 36, as shown in FIGS. An arc-shaped second plate is attached to the bottom plate 33 of the recess 32 with a screw 39.
The pusher body 35 is held by the spring 40 in a state in which the control piece 36 cannot pass through the through hole 37, that is, in the state shown in FIG. 3a.

Therefore, the pushing body 35 is rotated against the restoring force of the spring 40 as shown in FIG.
If it is opposed to the , it can be pressed down.

In addition, a stopper 36a is provided on the lower end side of the control piece 36.
The pusher body 35 is held by the second spring 40 in a state where the stopper 36a is engaged with one end of the through hole 37, and when the pusher body 35 is rotated, the stopper 36a 36a comes into contact with the other end of the through hole 37, allowing the control piece 36 to pass through the through hole 37.

Further, a shaft body 41 is vertically provided on the inner surface of the earthen wall of the pushing body 35.

The lower end of this shaft body 41 is bored into the bottom plate 33 and has a hole 33.
a, and a contact body 42 is positioned at the lower end thereof in a housing recess 34 formed on the lower surface of the bottom plate 33.
is provided.

A bellows 29 is provided between this contact body 42 and the upper plate 31.
A first spring 43, which is weaker than the spring 30 provided therein, is interposed, and urges the pushing body 35 upward via the abutting body 42.

Further, a first through hole 44 to which an annular backing 43a is attached is formed in a portion of the upper plate 31 facing the abutting body 42.

Therefore, normally the first through hole 44 is open, but when the pushing body 35 is pressed down, the first through hole 44 is closed by the abutting body 42, and in this state, the bellows 29 is compressed. be done.

On the other hand, a plurality of second through holes 45 are formed in the mounting plate 28, and a third through hole 46 is formed in a portion surrounded by the wall 26 of the plug 4. .

Therefore, when the bellows 29 is compressed as described above, the air inside the bellows 29 is pressurized and the second bellows 29 is compressed. Since the liquid is ejected into the container 8 through the third through hole 45 and 46 and pressurizes the liquid level of the liquid stored in the container 8, the liquid flows out from the outlet path 24 through the conduit 23. do.

Note that 47 in the figure is a handle whose both ends are rotatably connected to the case 1.

Next, the effect will be explained.

First, when not in use, the pushing body 35 is connected to the bellows 29.
It is biased by a first spring 43 provided between the contact body 42 and raised as shown in FIG. A second spring 40 connected to the bottom plate 33 of 32 holds the control piece 36 in the state shown in FIG. 3a in which it does not pass through the through hole 37.

Therefore, even if the pushing body 35 is inadvertently pressed in such a state, the control piece 36 will hit the bottom plate 33 of the mounting recess 32 and the pushing body 35 will not descend.
9 is compressed and the liquid in the container 8 flows out. Furthermore, during use, the pushing body 35 is connected to the second spring 40.
The control piece 36 is rotated against the restoring force until the stopper 36a of the control piece 36 contacts the other end of the through hole 37 as shown in FIG.

After that, if the pushing body 35 is pressed down against the restoring force of the first spring 43, the abutting body 42 closes the first through hole 44 and compresses the bellows 29, so that the housing body 8 Pressurized air is ejected into the container 8, and the liquid in the container 8 can be discharged.

Then, after discharging a predetermined amount of liquid, when the pressing force on the pushing body 35 is removed, this pushing body 35 is moved by the first spring 4.
The stopper 36a of the control piece 36 is raised by the restoring force of the second spring 40, and the stopper 36a of the control piece 36 is moved up by the restoring force of the second spring 40.
The device rotates until it comes into contact with one end of the device 7, and automatically returns to the same state as when not in use as described above.

Therefore, after use, simply by removing the pressing force on the pusher body 35, the pusher body 35 can be locked to prevent it from being lowered by an unexpected force.

In the above embodiment, a so-called electric air pot in which an electric heater is attached to the container is used, but the air pot in the present invention may be a so-called thermos flask in which the container is made of glass and does not have an electric heater. There is no problem.

Moreover, the mounting location of the first spring that biases the pushing body in the upward direction is not limited at all, and may be provided, for example, between the bottom plate of the mounting recess and the inner surface of the top wall of the lid body.

In this case, it is necessary to ensure that the first spring does not interfere with the movement of the pushing body in the rotational direction.

As described above, according to the present invention, a pusher body is provided in the mounting recess of the lid body so as to be biased in the upward direction by the first spring and biased in the rotational direction by the second spring. Only when it is rotated by a predetermined angle against the biasing force of the second spring, it can be pressed down against the restoring force of the first spring.

Therefore, if the operating force to the pusher that has been pushed down is removed, this pusher will be moved to the first position. Since it is restored by the restoring force of the second spring, it will not fall even if pressed by an unexpected external force.

In other words, just by releasing your hand from the pusher after use, the pusher is automatically locked to prevent it from falling, so there is no danger of forgetting to lock the pusher and accidentally spewing out hot water like in the past. There is no sex.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a vertical cross-sectional view showing a schematic configuration, FIG. 2 is a cross-sectional view of the pusher along the line I in FIG. FIG. 3 is an explanatory diagram showing the positional relationship between a control piece provided on the body and a through hole provided in a mounting recess. 2... Inner lid (lid body), 8... Container body,
19... Outer lid (lid body), 29... Bellows (air pump), 32... Mounting recess, 3
5... Push body, 36... Control piece, 37
......Through hole, 40...Second spring, 4
3...First spring.

Claims (1)

[Scope of utility model registration request] A container containing a liquid, a lid provided to close the open top surface of the container, and a mounting recess with a through hole formed in the bottom that is open to the top surface of the lid. and,
A pushing body is provided in the mounting recess so as to be vertically movable and rotatable and is biased in the upward direction by a first spring, and one end is engaged with the pushing body and the other end is engaged with the lid body. a second spring that biases the pushing body in the rotational direction; and a second spring that is formed on the pushing body and corresponds to the through hole when the pushing body is rotated by a predetermined angle against the biasing force of the second spring. an air pump that is operated by pressing down the pusher provided in the lid body to discharge the liquid in the container; pot.