JPS62144616A - Electric pot - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electric water heater equipped with a water level display device that allows the water level in the container to be checked from the outside.

BACKGROUND OF THE INVENTION Conventionally, electric water heaters of this type have had a structure as shown in, for example, Japanese Utility Model Publication No. 2-7 Sho 59-34421. That is, as shown in FIGS. 5 and 7, a water level tube 31 made of a transparent glass tube is erected, and the upper and lower ends of this water level tube 31 are connected to the upper end side wall and bottom of the container 32 and an L-shaped tube. 33 and 34. A vertical groove 36 is provided in the L-shaped tube 34 that connects the lower end of the water level pipe 31 and the bottom of the container 32.
A vertical lip 39 that fits into the vertical groove 36 was provided at the lower end of a display board 38 having a display window 37 attached thereto.

Problems to be Solved by the Invention In such a conventional configuration, although the water level pipe 31 can be positioned relative to the display window 37 of the display plate 38, after the display plate 38 is attached to the outer case 36, the water level pipe 31 can be positioned in the container 32 in advance. Since the vertical lip 39 at the lower end of the display plate 38 is fitted into the vertical groove 35 of the iL-shaped tube 34 connected to the lower end of the set water level pipe 1 within a limited space, it is not necessary to assemble it. To 〇3-1, which was not desirable in terms of performance and serviceability, the L-shaped tube 34 and the water level pipe 31 form a series of water passages with the inside of the container 32, so there may be some damage to this part. However, applying mechanical stress poses problems such as poor liquid sealing properties at the connection.

The present invention takes these problems into consideration and aims to provide a water level display device that is easy to assemble, allows the water level tube to be set accurately in the display window of the display board, and has excellent liquid sealing properties. It is.

Means for Solving the Problem In order to solve this problem, the present invention provides a display board having a vertically elongated window at a proper position on an outer case in which a cylindrical container with a bottom is folded, and the display board A water level pipe is erected in the interior corresponding to the vertically elongated window portion, and the protruding pipe communicating with the container and the water level pipe are made of a heat-resistant water resin material having approximately the same diameter as the protruding pipe and the water level pipe. It is connected to both end pipes of a water pipe molded into a mold, the tips of both end pipes are made wide-mouthed, and a substantially O-ring-shaped backing is interposed and attached to the wide-mouthed parts.

Function: With this configuration, the connection and positioning of the water level pipe and the oval shaped water pipe can be accurately controlled, and the tube can be installed at an angle in a deformed state, or it can be forced using other parts that have been cut. A water level display device that can be attached watertight to a protruding pipe that communicates with a container in a stable state at all times, making it easy to assemble, allowing the water level pipe to be set accurately in the display window of the display board, and with excellent liquid sealing properties. This will be done.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 4. In the figure, reference numeral 1 denotes a cylindrical outer case, on the upper end of which a spout 2 is placed, and a bottomed cylindrical container 3 is attached to the opening of the spout 2. A base 4 is provided at the lower end of the outer cup 1, and is threadedly connected to a mounting bracket 6 provided on the bottom surface of the container 3, so that the outer cup 1, spout 2,
Container 3 is fixed. A handle 6 is rotatably provided on the outer cooler 1, a lid 7 for opening and closing the upper opening is pivotally supported at the rear of the spout 2, and a pump 8 is provided on the lid 7 for pumping air into the inside. I'm running. A heating element 1 is provided at the bottom of the container 3.
The upper and lower parts of the container 3 are provided with projecting tubes 11 and 12 that project outward.

13 is a water level tube made of a transparent glass tube, and its upper end is connected to a communicating tube 14, and this communicating tube 14 is connected to the upper projecting tube 11.
The lower end of the water level pipe 13 is attached to one end side of a water pipe 16 formed into an oval shape from a heat-resistant water resin material, and the other end side is attached to the lower protruding pipe 12. . The inner diameters of the inner diameters 16 and 17 of both ends of the water pipe 16 of the above-mentioned type are set to a fitting clearance that allows the water level pipe 13 and the lower protruding pipe 12 to be inserted, respectively, and does not cause rattling.

The tip portions 18.19 of the inner pipes 16.17 at both ends are wide-mouthed, and the water level pipes 13,
A substantially O-ring-shaped backing 20.21 is attached to the lower protruding tube 12 in a watertight manner. A positioning lip 22 is formed on the inner bottom of the above-mentioned water pipe 15 to determine the position of the installed water level pipe. When the water pipe 16 is attached to the lower protruding pipe 12, the tip 12' of the lower protruding pipe 6 and the water level pipe 12 come into contact with the water level pipe 16, and the water level pipe 1
6 so as not to damage it. A float 23 is provided inside the water level pipe 16 so as to be able to float freely and allow the amount of liquid contained in the container 2 to be better determined, and the inner bottom of the water pipe 16 prevents the float 23 from moving downward. A regulating piece 24 is provided. The water level pipe 13 is provided on the outside of the outer case 1.
A display board 2 having a window 26 so that it can be viewed from the outside.
6 is installed.

As described above, the protruding pipe 12 at the lower part that communicates with the inside of the container 3, and the inner parts 16 and 17 at both ends of the water pipe 16, which is formed into a substantially rectangular shape from a heat-resistant water-resistant material and having a diameter approximately the same as the outer diameter of the water level pipe 13, are shown. The tip portion 18.19 has a wide opening, and a substantially O-ring shaped backing 20.21 is interposed in this wide opening portion, and the water level pipe 13 and the protrusion pipe 12 are press-fitted in a watertight manner, so that liquid sealing is ensured. Become something. In addition, the water level pipe 1 attached to the water pipe 15
3 and the tip of the protruding pipe 12 are installed extending into the pipes 16 and 17 at both ends, which have approximately the same diameter as this, so that the position of the water level pipe can be accurately regulated. Since the rattling of the pipe is reduced, the liquid sealing performance is further improved. In this example, a water tube formed into an abbreviated shape made of a heat-resistant water resistant material was attached to the lower protruding tube attached to the container. Needless to say, it's a good thing.

Effects of the Invention As described above, according to the present invention, the connection between the protruding pipe that communicates with the inside of the container and the water level pipe is made of a heat-resistant water-resistant material and formed into an abbreviated shape. It is possible to provide a water level display device whose position with respect to a window can be accurately controlled, which is easy to assemble, and which provides an immediate effect of liquid sealing properties.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of a main part of a water quantity display device for an electric water heater according to an embodiment of the present invention, Fig. 2 is an overall perspective view of the water heater (7 units), and Fig. 3 is a vertical cross-sectional view of the water heater. , Fig. 4 is a partial sectional view of the water level display device of the water heater, Fig. 6 is an exploded perspective view of the main part of the water level display device of the conventional electric water heater, and Fig. 6 is a sectional view of the main part of the water heater. 3...Container, 12...Protruding pipe (at the bottom), 13...Water level pipe, 16...Water pipe,
16.17...Inside the end pipe, 18.19...
Tip part, 1B', 19'... Wide mouth part, 21.2
2...Backing, 26...Display board,
26... Window section. Name of agent: Patent attorney Toshio Nakao (1 person, 3 people)
...Container 15...Water pipe 16, 1? ...Pipe interior 18.19...Tip portions 18', 19'...Wide mouth portion 20.21...Backing Fig. 2 25..Display plate 26...Window section Fig. 3 Fig. 4

Claims (1)

[Claims] A display board with a vertically elongated window is provided at an appropriate position of an outer case in which a bottomed cylindrical container is installed, and a water level pipe is erected inside the display board in correspondence with the vertically elongated window, A protruding pipe communicating with the container and the water level pipe are connected to both end pipes of a water pipe formed into a substantially L-shape from a heat-resistant water resin material having approximately the same diameter as the projecting pipe and the water level pipe, and the tip portions of the both end pipes are An electric water heater characterized by having a wide mouth and having a substantially O-ring-shaped packing interposed in the wide mouth.