JPH0339155Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to the structure of the water injection part of an air pot, and particularly relates to the air hole of the water injection pipe.

[Conventional technology and its problems]

The water inlet of an air pot communicates with the inside of the pot via a water inlet pipe and a water pumping pipe, so if a child or the like puts their mouth directly to the water inlet and inhales, hot water will spew out, which is dangerous. For this reason, a risk prevention means is conventionally known in which an air hole is provided in the upper wall of the water inlet pipe so that even if the water inlet is directly connected to the water inlet and inhaled, only air is sucked in and hot water is not discharged.

FIG. 3 shows an example of this, in which the downwardly bent portion of the water injection pipe 1 is formed into a double pipe, and an air hole 3 is formed at the upper end of the outer pipe 2. Further, a strainer 4 is connected to the lower end of the outer tube 2. A shoulder cover 5 is placed over these double pipe portions and the strainer 4 portion.

In addition, in the figure, 6 is a shoulder body, and 7 is a lid.

[Problem that the invention attempts to solve]

When the air pot assembly is completed, each pot is tested for airtightness. In this case, the lid 7 is opened, the gasket 8 is inserted into the air hole 3, and the lid 7 is closed again. When the airtightness test is completed, the gasket 8 is no longer needed and is removed.

However, since the presence of the gasket 8 is difficult to notice when the lid 7 is closed, there is a possibility that the gasket 8 may be forgotten to be removed after the airtight inspection is completed.

Therefore, the object of this invention is to solve the above-mentioned problems and to ensure that the above-mentioned gasket is removed.

[Means for solving problems]

In order to solve the above problems, this invention forms an outer pipe around the lower end of the water injection pipe, connects a strainer to the lower end of the outer pipe, and installs the lower end of the water injection pipe and the strainer in front of the shoulder body. In the water injection part of the air pot, an air hole is provided in the front surface of the outer tube, and a shoulder cover covering the front surface of the outer tube is inserted into an engaging part provided in the front surface of the shoulder body.

[Example] In the air pot shown in FIGS. 1 and 2,
The upper end of the water injection pipe 10 is connected to a safety valve device 11,
Further, the lower end is connected to a strainer 12. An outer pipe 13 is formed at the lower end of the water injection pipe 10, and partially forms a double pipe. The outer tube 13 extends further downward than the inner tube 14, and the strainer 12 described above is connected to its lower end. Further, an air hole 15 is formed in the front surface of the outer tube 13.

The above water injection pipe 10 is connected to the lower end and the strainer 12.
A gutter-shaped shoulder cover 16 that covers this portion is inserted into an engaging portion 18 (see FIG. 2) provided on the shoulder body 17.

The upper end of the water pump 20 is connected to the other end of the safety valve device 11 through a pipe communication section 19 provided on the shoulder body 17 .

In addition, in the figure, 21 is an inner bottle, 22 is an air pot, 23 is a lid, and 24 is a heat insulating member integrally attached to the bottom plate of the air pot.

The air pot with the above configuration has an air hole 15 provided in the outer pipe 13 of the water injection pipe 10, so that even if a child or the like directly puts his or her mouth on the lower end of the strainer 12 and inhales, only the air will flow out. There is no risk of hot water being sucked in.

On the other hand, airtightness inspections in factories are carried out by removing the shoulder bar 16 and inserting the gasket 25 into the air hole 15.If the gasket 25 in this case is sufficiently tall, it is possible to Even if an attempt is made to attach the cover 16, the gasket 25 gets in the way and cannot be attached.

[Effect of idea]

As mentioned above, this invention covers the front of the air hole formed in the outer pipe of the double pipe part of the water injection pipe with a shoulder cover, so that the gasket inserted into the air hole during the airtightness inspection can be easily removed by attaching the shoulder cover. Since it gets in the way, it must be removed before installing the shoulder cover.
Therefore, it is possible to eliminate the possibility that the product will be shipped from the factory without having forgotten to remove the gasket.

[Brief explanation of the drawing]

Fig. 1 is a partially omitted sectional view of the air pot of the embodiment, Fig. 2 is an exploded perspective view showing a part of the water injection part of the same as above, and Fig. 3 is a sectional view of the water injection part of the conventional air pot. be. 10...Water injection pipe, 11...Safety valve device, 12...Strainer, 13...Outer tube, 14...Inner tube, 15...Air hole, 16...Shoulder cover, 17...Shoulder body, 25...Packing.

Claims (1)

[Scope of utility model registration request] In the water injection part of the air pot, an outer pipe is formed on the outer periphery of the lower end of the water injection pipe, a strainer is connected to the lower end of the outer pipe, and the lower end of the water injection pipe and the strainer are provided in front of the shoulder body. A water injection part of an air pot, characterized in that an air hole is provided in the air pot, and a shoulder cover covering the front side of the outer tube is inserted into an engaging part provided on the front surface of the shoulder body.