JPS5941787Y2 - Metal magic bottle stopper structure - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a stopper structure for a metal magic bottle.

Conventionally, the stopper of a metal magic bottle has a knob that screws into a male screw provided on the outer periphery of the mouth of the magic bottle, and a knob located in the center of this knob. It consists of a tester that fits deeply, and in order to achieve airtightness and heat retention between the tester and the mouth of the magic bottle, there is a Q IJ on the lower outer periphery of this tester that fits tightly against the inner wall surface of the mouth of the magic bottle. I was wearing a thong.

However, when the temperature of the liquid inside drops and the internal pressure of the magic bottle becomes negative, it is adsorbed to the inner wall surface of the mouth of the Q IJ song, and not only is it difficult to open the cap, but if you try to forcefully open it, the bottle will not open properly. The drawback is that the ring may fall off.

The present invention was devised in view of these drawbacks, and it is an object of the present invention to provide a stopper structure for a metal magic bottle that has excellent heat retention performance and is easy to open.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings, which are exemplary embodiments.

On the national side, 1 is a metal inner bottle, 6 is a metal outer bottle, these inner bottle 1 and outer bottle 6 constitute the main body of the magic bottle, and the space between the inner bottle 1 and outer bottle 6 is This is the vacuum chamber 9.

On the inner surface of the mouth of the inner bottle 1, there is an inclined surface 3 that slopes inward as it goes downward from the opening edge 2, a cylindrical hanging wall 4 that hangs down from the lower end of this inclined surface 3, and this hanging wall. An annular protrusion 5 that protrudes inward is provided at the bottom of 4.

On the other hand, the outer surface of the mouth of the outer bottle 6 is provided with male screws 7°8 at two places, upper and lower, and the upper male screw 7 is connected to the knob 11 of the stopper 10.
The lower male screw 8 is screwed into a lid (not shown).

The stopper 10 includes the annular knob portion 11 and the knob portion 11.
and a probe 12 that is rotatably fitted in the center of the inner bottle 1 and deeply fits into the mouth of the inner bottle 1.

A recessed groove 13 is provided on the outer periphery of the upper part of the probe 12, and a packing 14 having a cross-sectional shape is fitted into this recessed groove 13, and a step part 15 is provided at the lower part.

Note that a top plate 16 is fixed to the top surface of the probe 12, and
A hollow chamber is formed inside the chamber 2, and this hollow chamber is filled with a heat insulating material 17.

When closing the cap with the stopper 10 configured as described above, first the probe 12 is fitted into the mouth of the inner bottle 1, and the knob 11 is screwed into the male screw 7.

As a result, the probe 12 moves directly downward, and the stepped portion 15
At the same time, the downwardly hanging tip of the packing 14 comes into close contact with the inclined surface 3.

Therefore, the packing 14 does not come into sliding contact with the inner wall surface of the opening of the inner bottle 1 during screwing, and the packing 14 does not twist and fall off.

To open the stopper 10, the knob 11 is removed from the male screw 7, and the sample 12 is pulled out from the mouth of the inner bottle 1.

When the cap is closed, the protrusion 5 and the stepped portion 15 are in contact with each other with appropriate airtightness, so the cylindrical gap formed between this contact portion and the sealing contact portion becomes a kind of heat insulating space. The content liquid does not come into direct contact with the inner bottle mouth, which prevents heat loss from the metal inner bottle mouth due to conduction, further improving heat retention performance.

In addition, the shape of the packing 14 is made into a cross-sectional shape, and the inclined surface 3
Since the tip is brought into close contact with the inner pressure of the magic bottle body, when the internal pressure of the magic bottle body increases, the adhesion force with the dowel slope 3 increases, preventing water leakage, and at the same time reducing the temperature of the liquid inside. When the internal pressure becomes negative pressure, the tip of the gasket 14 bends inward to allow outside air to flow in and eliminate the negative pressure.

Therefore, when the bottle is opened, the seal 14 is moved to the inner bottle 1 by negative pressure.
The cap can be opened easily without sticking to the wall surface of the container, and the gasket 14 does not fall off.

In the above embodiment, the knob 11 of the stopper 10 and the probe 1
Although 2 and 2 are made rotatable, the knob and the probe may be integrally molded with resin.

As is clear from the above explanation, according to the present invention, the protrusion of the magic bottle body and the stepped part of the tester come into contact with each other at the back of the mouth, and the inclined surface and the gasket come into close contact, so that the above-mentioned contact area The gap formed between the metal inner bottle mouth and the inner bottle mouth becomes a heat insulating space, and the liquid content does not come into direct contact with the inner bottle mouth, preventing heat loss from the metal inner bottle mouth due to conduction, further improving heat retention performance.

In addition, since the tip of the gasket hangs downward, even if the internal pressure becomes negative, outside air is allowed to flow in to eliminate the negative pressure, making opening easier and preventing the gasket from falling off.

[Brief explanation of the drawing]

The drawing is a partially cutaway cross-sectional view of the stopper structure of the metal magic bottle according to the present invention. 1... Inner bottle, 2... Opening edge, 3...
... Sloped surface, 4 ... - ... Hanging wall, 5 ......
Projection, 6...Outer bottle, 7...Male screw, 1
0... Stopper, 11... Knob part, 12.
...Kenshi, 13...Concave groove, 14...
...Patsukin, 15...Danbe.

Claims (1)

[Scope of utility model registration request] In the metal magic bottle stopper structure, which consists of a metal magic bottle body and a stopper that is detachably attached to the mouth of the magic bottle body, a male thread is attached to the outer surface of the mouth of the magic bottle body. The inner surface of the mouth has an inclined surface that slopes inward as it goes downwards from the opening edge, a cylindrical hanging wall that hangs down from the lower end of this inclined surface, and an inward wall at the bottom of this hanging wall. The stopper is provided with an annular tab that is screwed onto the male screw, and is provided in the center of this tab, and is fitted deeply into the mouth of the magic bottle body. The tester has a concave groove on the outer periphery of the upper part, and a gasket with a cross-sectional shape is attached to this concave groove.
A step is provided at the bottom, and when the knob of the stopper is screwed onto the main body of the magic bottle, the step comes into contact with the protrusion over the entire circumference, and the downwardly hanging tip of the stopper comes into contact with the sloping surface. A metal magic bottle stopper structure that is characterized by its close contact with the body.