JPS6037069Y2 - Liquid container with liquid level detection and display device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a liquid container such as a thermos flask, and more specifically, a liquid level detection electrode side that can be inserted into and removed from the container and a side of the container. Regarding a liquid container with a liquid level detection and display device that is equipped with connection terminals that come into contact with and separate from each other as the connection terminals come into contact with other objects, the purpose is to improve the arrangement of the connection terminals so that the connection terminals do not come into contact with other objects. The object of the present invention is to avoid poor contact between both connection terminals due to deformation of the connection terminals or dust adhesion to the connection terminals.

First, an embodiment of the present invention will be explained based on the drawings.
An outer case 1 equipped with A, a glass medium bottle 2 (an example of a container) removably fitted and held therein, and opening and closing of the opening 2A by inserting and extracting this into the upper opening 2A with the packing 2a. A thermos bottle (
(one example of a liquid container), the pillar 3 has a stainless steel liquid lifting pipe 5 whose liquid suction port 5a is located near the bottom of the medium bottle 2 when the pillar 3 is in a closed state; A pipe 8 is attached which communicates with each other through a passage 6 and connects its discharge port to a downflow pipe 7 attached to the exterior case 1, and inside the pipe 8 is elastically biased to close the passage 6. A valve 9 is provided, and a passage 10 is formed that communicates the inside of the medium bottle 2 with the outside.

The upper M4 has an air outlet 11 in its closed state.
an air pump 11 for connecting a to the passage 10 of the stopper 3, an operating tool 12 for operating the air pump 11, and an operating tool 1 for operating the air pump 11;
An operating section 13 is attached for opening the valve 9 in the stopper 3 in response to the air pressure feeding operation of step 2, against bias.

Thus, the thermos flask is configured such that the liquid contained in the medium bottle 2 can be taken out using air pressure while the bottle is in a closed state.

A capacitive detection device 14 for electrically detecting the liquid level in the medium bottle 2 is provided, and a plurality of light emitting diodes (liquid crystal A device 15 for displaying the liquid level detected by the detection device 14 step by step with 15a is provided in such a way that the display light emitting diodes 15a are exposed to the outside.

The detection device 14 includes a pair of rod-shaped electrodes 14A on the plug 3.
, 14A' is inserted into the medium bottle 2 so that its lower end is located near the bottom of the medium bottle 2 when the cap is closed, and is fixedly attached so that it is removed from the medium bottle 2 when the cap is opened. At the same time, the electrodes 14A, 1 are provided on the inner surface of the outer case 1.
It is constructed by installing a circuit 14B for operating the display device 15 for display based on the detection results of the 4A' pairs.

Among the pair of electrodes 14A and 14A', one 14A is configured to double as the stainless steel lift pipe 5, and the other electrode 14A' is made of stainless steel, and is located at the center of the stopper 3, that is, the liquid lift pipe 5, which will be described later. It is provided at a position offset to the connection terminal 18' side.

The means for connecting the pair of electrodes 14A and 14A' to the circuit 14B is to pass connecting terminals 17 and 17', which are crimped and connected to the ends of the conductive wires 16 and 16' led out from the circuit 14B, into the opening 2A through the packing 2a. In other words, both the electrodes 1 are provided in an exposed state inside the inner bottle 2, and the both electrodes 1 are provided on the stopper 3.
4A' and 14A are provided in such a manner that the connecting terminals 18, 18' connected to the terminals 4A', 14A are in contact with the corresponding ones of the contact members 17, 17' when the cap is closed, and are separated when the cap is opened.

19 in the figure is a power supply battery.

4 to 6 respectively show different embodiments, and in the other embodiment shown in FIG. In the other embodiment shown in FIG. 5, the other electrode 14A' is installed inside the liquid pumping pipe 5, and in the other embodiment shown in FIG. The tube 5 is constructed by connecting two semi-cylindrical bodies 5A and 5A' made of stainless steel in a cylindrical shape with insulating synthetic resins 5B and 5B, and one half-cylindrical body 5A serves as one electrode 14A. The other semi-cylindrical body 5A' also serves as the other electrode 14A'.

Reference numeral 20 in FIG. 5 is an insulating spacer that maintains the distance between the electrodes 14A, 14A'.

In addition, in the above embodiment, the capacitance type detection device 14 was explained, but the detection device 14 to which the present invention is applied detects the liquid level step by step using a plurality of electrodes 14A, 14A' having different lengths. The detection device may be a so-called conductivity type detection device, and may be provided in a portion of the outer case 1 or the top lid 4 other than the locations shown in the embodiment.

Further, the display device 15 may be one that displays information step by step as in the embodiment, or one that displays analog or digital information.

Examples of the power source battery 19 include dry batteries, mercury batteries, silver batteries, lithium batteries, primary batteries such as Alka IJi ponds, secondary batteries, and solar cells; examples of the power source include general household power sources, etc. It may be an external power source.

The liquid lift pipe 5 may be made of stainless steel, iron, aluminum, synthetic resin, or the like.

Furthermore, in addition to the thermos shown in the embodiment, the present invention also includes a liquid container configured to force air into the container with an electric air pump to take out the liquid in the container, and a liquid container configured to take out the liquid in the container with an electric screw. The present invention can be applied to a liquid container configured as shown in FIG.

In summary, the liquid container with a liquid level detection and display device according to the present invention connects both the connection terminals 17 and 18 to the electrode 1.
4A' are both located within the container 2 in the inserted state.

Therefore, according to the present invention, when the electrode 14A' is inserted into the container 2, both the connecting terminals 17 and 18 are housed in the container 2, and the connecting terminals 17 and 18 are connected to each other by using the container 2 as a protector. Since it is possible to prevent contact with objects and adhesion of dust, it is possible to avoid deformation of the connecting terminals 17 and 18 due to contact with other objects and poor contact due to adhesion of dust.
The current connection between the electrode 14A' and the circuit 14B through the connection terminal is ensured, and the desired liquid level detection and display can be performed reliably and accurately.

In particular, as in the embodiment, when the connection terminal 18 on the electrode 14A' side is attached to the stopper lid 3, and the electrode 14A' is provided at a position offset to the connection terminal 18 side with respect to the center of the stopper lid 3. In this case, the distance between the electrode 14A' and the connecting terminal 18 is small, and the length of the wire and other members for connecting the electrodes 14A' and 18 can be short.

[Brief Description of the Drawings] The drawings show an embodiment of a liquid container with a liquid level detection and display device according to the present invention, in which Fig. 1 is a partially cutaway side view and Fig. 2 is an enlarged longitudinal sectional side view of the main part. , FIG. 3 is a side view of the main part, FIGS. 4 to 6 each show another embodiment, FIG. 4 is a schematic sectional view, FIG. 5 is a perspective view of the main part, and FIG. FIG. 3 is a cross-sectional plan view of main parts. 2...Container, 14A'...Electrode, 17
, 18... Connection terminal, 3... Cap lid.

Claims (1)

[Claims for Utility Model Registration] ■ Liquid level detection electrode 1 that can be inserted into and removed from the container 2
4A' side and the container 2 side are provided with connection terminals 18 and 17 that come into contact with and separate from each other as the electrode 14A' is inserted into and withdrawn from the container 2. In, both the connection terminals 17 and 18,
When the electrode 14A' is inserted, the container 2
A liquid container with a liquid level detection and display device, characterized in that the liquid level detection and display device is located inside the container. (2) A liquid container with a liquid level detection and display device according to claim (2), wherein the electrode 14A' is fixedly attached to the cap 3 of the container 2. (2) A utility model in which the connection terminal 18 on the electrode 14A' side is attached to the stopper lid 3, and the electrode 14A' is provided at a position offset to the connection terminal 18 side with respect to the center of the stopper lid 3. A liquid container with a liquid level detection and display device according to registered claim No. (2).