JPH0532015Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a water level display device that externally displays the amount of hot water in a container such as an electric water heater.

Conventional technology Conventionally, in order to display the water level and water loss inside the water heater, this type of electric water heater was generally equipped with a metal fitting that communicated with the inside of the container and a water-tight glass water level pipe with a gasket, which was connected to the outside of the water heater. This made it easier to check the water level. However, since the liquid that flows into the water level tube is usually colorless and transparent, it is not easy to check the liquid level, which can lead to incorrect readings of the water level, causing the main body to dry and shorten its life.
Alternatively, if too much water is added, excess hot water may come out of the outlet, posing a risk of burns.

On the other hand, in the conventional technology, as shown in Fig. 4,
A substantially L-shaped holding piece 11 is provided on the back of the water level pipe 10 to make it easy to check the water level. moreover,
As shown in FIG. 5, a proposal has been made to make it easier to check the water level by configuring the back of the water level pipe 10 with a filled line D and a transparent line E that are inclined at a certain angle.

Problems to be Solved by the Invention However, the conventional technique in which the approximately L-shaped holding piece 11 is provided on the back of the water level pipe 10 requires a separate component for water level display. As a result, it takes time to assemble, and parts may become misaligned due to shocks such as dropping, resulting in high overall costs and imperfections.

In addition, if printing is applied from the back of the water level pipe 10, the diagonal lines shown in FIG. There was a problem in that the flickering reflected on the body made it difficult to check the water level. Furthermore, water level pipe 1
Since the water level tube 10 is colorless and transparent in the part where the back of the 0 is not printed, the built-in parts located behind the water level tube 10 can be seen through from the outside of the main body, which deteriorates the quality.

This invention solves the above problems,
To provide a water level display device for an electric water heater that can reliably determine the water level without requiring any other parts or the like and without degrading the quality.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a transparent water level pipe that communicates with a container for storing liquid and that allows the amount of liquid to be seen through from the outside of the main body. A first printed line having a width inclined at a constant angle and at regular intervals approximately halfway around the circumference, and the first printed line provided on the back of the first printed line, which is not printed. a second printed part displayed on the transparent part of the water level tube, the first printed line and the second printed part are set to different colors, and the width of the second printed part is set to The printing width is larger than the printing width of the first printing line, and a striped pattern is displayed between the first printing line and the second printing part displayed therebetween.

Function: With the above-described configuration, the present invention displays the water level by using only the different printing of the first printed line and the second printed part, so there is no need to attach another part to display the water level.

In addition, by providing a second printing part and making the width of the second printing part larger than the printing width of the first printing line, the transparent part of the water level pipe is not visually reflected, and the water level When checking the display, a virtual image is not reflected on the rear container, and eye flickering can be prevented. Furthermore, it is possible to prevent internal components located behind the water level pipe from being seen through from the outside of the main body.

Embodiment An embodiment of the present invention will be described based on FIGS. 1 to 3. In the figure, inside an outer case 1 is provided a container 3 having a heating element 2 attached to its bottom. A water level pipe 4 made of a transparent glass tube is arranged on the outside of the container 3 so as to communicate with the upper and lower parts thereof, and a pipe cover 5 is provided on the outer case 1 opposite to this water level pipe 4. There is.

The upper and lower ends of the water level pipe 4 are watertightly connected to protruding pipes 6 and 7 protruding from the container 3 via connecting packings 8 and 9.

Furthermore, as shown in FIG. 3, on the back side of the water level pipe 4, a first printed line A having a width and inclined at a certain angle and at a certain interval is provided on the half circumference, for example, with white printing. A second printed part is displayed on the transparent part C of the unprinted water level pipe 4 between this first printed line A and is printed in a color different from the first printed line A, for example, in gray or black. B is provided to display a striped pattern. The width b of the second printing section B is made larger than the width a of the first printing line A.

Effects of the invention As described above, according to the invention, the water level display can be reliably determined by using only the different printing of the first printed line and the second printed part, so there is no need for a separate part for the water level display. There's nothing to do. Therefore, there is no need for the time and cost of assembly due to the use of other parts, and the product can be provided at a low cost. Furthermore, it is possible to provide a water level display device that is sufficiently durable against impacts such as dropping.

In addition, by providing a second printing part and making the width of the second printing part larger than the printing width of the first printing line, the transparent part of the water level pipe is not visually reflected, and the water level When checking the display, a virtual image is not reflected on the rear container, preventing eye flickering and making it possible to reliably determine the water level. Furthermore, it is possible to prevent built-in components located behind the water level pipe from the outside of the main body from being seen through, and it is possible to provide a water level display device with improved quality and robustness.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the main parts of a water level display device for an electric water heater according to an embodiment of the present invention, Fig. 2 is a front view of the display panel section of an electric water heater according to the present invention, and Figs. FIG. 4 is a perspective view of the main parts of the water level display device of the conventional electric water heater, and FIG. FIG. 2 is an enlarged front view of main parts of the water level display device. 1... Outer case, 2... Heating element, 3... Container,
4...Water level pipe, 6, 7...Protruding pipe, 8, 9...Connection packing, A...First printed line, B...Second printed part, C...Transparent part, a...th The printing width of the first printing line, b...the printing width of the second printing section.

Claims (1)

[Scope of utility model registration request] A first print having a width inclined at a constant angle and at regular intervals on approximately half the circumference of the back side of a transparent water level pipe that communicates with a liquid storage container and allows the amount of liquid to be seen through from the outside of the main body. line, and a second printed part provided on the back of the first printed line and displayed on a transparent part of the water level pipe that is not printed between the first printed lines, The printed line and the second
The width of the second printing area is set to be a different color from the printing area of the first printing line, and the width of the second printing area is set to be larger than the printing width of the first printing line, so that the second printing area is set to a color different from that of the first printing line and the second printing area displayed between the first printing line and the first printing line. A water level display device for an electric water heater, characterized in that a striped pattern is displayed on the printed part 2.