JPS608822Y2 - liquid thermal container - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a liquid heat-retaining container such as a thermos flask, and more specifically to a liquid heat-retaining container equipped with a liquid amount detection mechanism.

Another object of the present invention is to make it possible to finely adjust the reference plate of the liquid volume display in the liquid volume display device in a liquid heat insulating container equipped with a liquid volume detection mechanism, thereby making it possible to correct errors in the display device. In order to achieve this objective, the present invention is characterized by a structure in which a reference plate for reading the liquid volume display in the liquid volume display device is supported with respect to the container body so as to be finely adjustable in the vertical direction with an adjustment screw.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A liquid heat-insulating container according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

1 to 3 show a pump-type thermos flask according to a first embodiment of the present invention.

In FIGS. 1 to 3, reference numeral 1 denotes a container body, 2 a lid pivotably attached to the container body 1 with a hinge pin 3, and 4 an outer case constituting the outer peripheral surface of the container body 1. ,5
Reference numeral 1 indicates a liquid container made of a vacuum double layer forming the inner peripheral surface of the container body 1, 6 indicates a lower opening member placed and fixed on the upper part of the outer case 4, and 7 indicates a lower opening member 6 formed approximately in the center. liquid supply port,
8 is a series of liquid guide pipe units for guiding the liquid contained in the liquid container 5 to the outside, 9 is a bellows-type air pump housed in the lid 2, 10 is a pump push plate, and 11 is a guide. Inner plugs 12 and 13 forming part of liquid pipe unit 8
14 is a vertical pipe for liquid method soil and a horizontal pipe for pouring out liquid attached to the inner stopper 11, 14 is an auxiliary pipe connected downward to the outlet of the horizontal pipe 13, and 15 is an inner stopper. The air passages formed in 11 are shown respectively.

This thermos flask is provided with a liquid amount detection mechanism that allows the amount of liquid contained in the liquid container 5 to be detected from the outside.

The liquid volume detection mechanism has a liquid container 5 arranged to be vertically movable within the container body 1, and displays externally the amount of vertical displacement of the liquid container 5, which changes depending on the amount of liquid contained in the liquid container 5. The weight of the liquid container 5 and the liquid inside it can be detected by the spring 16.1.
It is supported in a floating state on a bottom member 17 via a lever 6, and is configured to display the vertical displacement position of the liquid container 5 on a liquid level display device 19 provided on the outer surface of the outer case 4 via a lever 18. are doing.

The liquid container 5 is held so that its outer periphery is covered with a holder 20.

This holder 20 is made by screwing together an upper cover member 20a that is large enough to cover the entire body of the liquid container 5 from the upper end, and a bottom cover member 20b that is large enough to cover the bottom of the liquid container 5. It is constructed so that the outside of the liquid container 5 can be completely covered.

Between the upper opening 5a of the liquid container 5 and the lower surface of the opening edge 7a of the liquid supply lower, there is a cylindrical sealing member 21 that is expandable and retractable in the vertical direction.
is interposed to allow the liquid container 5 to move up and down while keeping the gap between the upper opening 5a of the liquid container and the opening edge 7a of the liquid supply port airtight.

A support base 22 for supporting the holder 20 and the liquid container 5 is disposed below the holder 20.

The support stand 22 includes an annular outer member 22a and the outer member 2.
It is formed by integrating a medium threaded member 22b screwed into the inside of 2a.

This support 22 has a spring 16.1 on the bottom member 17.
6, it is supported in a floating state in the vertical direction.

Further, this support stand 22 is guided by positioning protruding rods 23, 23 formed on the upper surface of the bottom member 17, and is adapted to slide only in the vertical direction.

The springs 16.16 push up the support stand 22 and the holder 20 (including the liquid container 5) when the liquid container 5 is empty of liquid (the state shown in FIG. The container is strong enough to be pushed downward by the weight of the liquid when the container is almost full of liquid (the state shown in Figure 2).

The vertical displacement of the support base 22 is displayed on a liquid amount display device 19 provided on the outer surface of the outer case 4 via a lever 18.

This liquid level display device 19 is arranged at the lower front portion of the outer case 4 (below the spout of the auxiliary pouring pipe 14).

The liquid level display device 19 includes an elevating body 24 for displaying liquid volume that moves up and down in response to the amount of vertical displacement of the liquid container 5, and the elevating body 2.
4, and a reference plate 26 for reading the liquid level display 25 of No. 4, and is housed in a vertically elongated case-shaped outer cover 27 fixed to the lower front part of the outer case 4.

In this embodiment, the outer cover 27 is integrally molded with a pipe cover 28 that covers the outside of the auxiliary pouring pipe 14.

The elevating body 24 is raised and lowered by a lever 18.

The lever 18 is pivoted by a pin 30 to a bracket 29 formed inwardly on the side surface of the outer cover 27.
One end 18a of the lever 18 is engaged with the lower surface of the protrusion 31 formed on the support base 22, while the other end 18b is engaged with the lower surface of the protrusion 31 formed on the support base 22.
It is engaged with the bottom surface.

Therefore, when the support base 22 moves downward, the lever 18 rotates in the clockwise direction in the illustrated state to push up the elevating body 24, and conversely, when the support base 22 moves upward, the lever 18 rotates in the counterclockwise direction. The elevating body 24 is lowered.

On the front surface of the elevating body 24, a liquid amount display 25 consisting of a vertical scale is provided.

The reference plate 26 is disposed between the outer cover 27 and the elevating body 24, and has a display window 32 for displaying the liquid amount display 25 of the elevating body 24.

A reference point 33 is attached to the side of the display window 32.

Thus, the liquid amount can be detected by matching the reference point 33 with the scale of the liquid amount display 25 of the elevating body 24.

The reference plate 26 is supported within the outer cover 27 so as to be finely adjustable in the vertical direction by an adjustment screw 34 attached to the bottom of the outer cover 27.

That is, the adjustment screw 34 is rotatably attached to the bottom of the outer cover 27 with vertical movement restricted.
When the knob 34a of the adjustment screw 34 is rotated, the reference plate 26 screwed into the threaded portion 34b can be finely adjusted up and down.

Note that this reference plate 26 is adjusted so that its reference point 33 coincides with the liquid amount display 25rOJ scale of the elevating body 24 when there is no liquid in the liquid container 5.

Further, a spring 35 is interposed between the upper part of the reference plate 26 and the upper surface of the elevating body 24 to bias the elevating body 24 downward.

The outer cover 27 has a window hole 3 so that the vertical movement of the elevating body 24 and the display window 32 of the reference plate 26 can be visually observed from the outside.
6 is formed.

Further, the lower end of the outer cover 27 connects the bottom member 17 to the outer case 4.
It is fixed to the front surface of the outer case 4 by sharing a screw 37 for fixing it to the outer case 4.

Furthermore, an opening 38 is formed on the front surface of the outer case 4 for allowing the bracket 29 of the outer cover 27 to protrude inward.

The lever 18 is arranged so that the length from the pivot pin 30 to the lifting body side is greater than the length from the pivot pin 30 to the support side engaging end 18a so that the vertical displacement of the support base 22 can be expanded and the lifting body 24 can be transmitted. The length up to the engaging end 18b is set to be long.

Next, the operation of the thermos flask shown in FIGS. 1 to 3 will be explained.

As shown in FIG. 1, when there is no liquid in the liquid container 5, the support base 22 is held by the elastic force of the spring 16. The tool 20 and the liquid container 5 are supported in a pushed up state.

In this state, the elevating body 24 of the liquid level display device 19 is located below, and the correspondence between the "0" scale of the liquid level display 25 and the reference point 33 of the reference plate 26 is visually confirmed through the window hole 36 of the outer cover 27. As a result, it is detected that there is no liquid in the liquid container 5.

When a large amount of liquid is poured into the liquid container 5 as shown in FIG. 2, the weight of the liquid is applied to the springs 16, 16, and the support base 22 is moved downward against the spring force.

At that time, the elevating body 24 is pushed up via the lever 18, and the scale of the liquid level display 25 and the reference point 33 of the reference plate 26 are
The amount of liquid in the liquid container 5 is detected by visually confirming the coincidence.

Note that when the liquid container 5 moves downward, the cylindrical seal member 21 is extended.

Further, as the liquid in the liquid container 5 is successively poured out, its weight is gradually reduced, and the support base 22 is moved upward little by little by the elastic force of the springs 16 and 16.

Correspondingly, the elevating body 24 descends and the liquid amount is sequentially displayed.

FIG. 4 shows a second embodiment of the invention.

In this case, the outer cover 27 is separated from the pipe cover 28 and is an independent structure, and is fixed by engaging the claw pieces 39 protruding from the upper end thereof into the engagement holes 40 of the outer case 4.

Further, the adjustment screw 34 is attached to the upper end of the outer cover 27.

The structure and operation of other parts are the same as those of the first embodiment, so their explanation will be omitted.

FIG. 5 shows a third embodiment of the invention.

In this case, the liquid level display device 19 is provided inside the pipe cover 28, and the pipe cover 28 also serves as an outer cover.

That is, a window hole 36 is formed in the front surface of the pipe cover 28.

Further, the protruding piece 31 that engages with the one end 18a of the lever 18 is integrally protruded from the side surface of the upper cover member 20a of the holder 20, and is made to protrude into the pipe cover 28 from a hole 41 formed in the outer case 4. There is.

Furthermore, an adjustment screw 34 is attached to the bottom of the pipe cover 28.

The structure and operation of other parts are the same as those of the first embodiment, so their explanation will be omitted.

In each of the above embodiments, a pump-type thermos flask is described, but the present invention is of course applicable to various types of liquid heat-insulating containers.

Next, the effects of the liquid heat-insulating container of the present invention will be described.

According to the present invention, in a liquid heat-insulating container equipped with a liquid volume display device 19, a device for reading the liquid volume display 25 of the liquid volume display elevating body 24 that moves up and down in response to the amount of vertical displacement of the liquid container 5 is provided. Since the reference plate 26 is supported with respect to the container body 1 so that it can be finely adjusted in the vertical direction using the adjustment screw 34, if an error occurs between the actual liquid volume and the liquid volume displayed by the liquid volume display 25, By rotating the adjustment screw 34, the error can be easily corrected, and there is a practical effect that the liquid amount can always be accurately displayed.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a liquid heat-insulating container according to a first embodiment of the present invention, FIG. 2 is an explanatory diagram of the operation of the liquid heat-insulating container of FIG. 1,
Figure 3 is an exploded perspective view of the liquid level display device in Figure 1;
5 and 5 are longitudinal cross-sectional views of essential parts of liquid heat-insulating containers according to second and third embodiments of the present invention, respectively. 1...Container body, 5...Liquid container, 19
...Liquid level display device, 24...Elevating body,
25...Liquid level display, 26...Reference plate,
34...adjustment screw.

Claims (1)

[Scope of utility model registration request] The liquid volume can be detected by making the liquid container 5 in the container body 1 vertically movable and displaying the amount of vertical displacement of the liquid container 5 on a liquid volume display device 19 provided at an appropriate position in the container body 1. In the liquid heat insulating container, the liquid volume display device 19
This is constituted by an elevating body 24 for displaying liquid volume that rises and lowers in response to the amount of vertical displacement of the liquid container 5, and a reference plate 26 for reading the liquid volume display 25 of the elevating body 24. A liquid heat-insulating container characterized in that the reference plate 26 is supported by an adjustment screw 34 with respect to the container body 1 so as to be finely adjustable in the vertical direction.