JPS6024777Y2 - Water tank for disaster prevention - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a water storage tank for disaster prevention, which is buried underground and connected to a water pipe so that water constantly flows therethrough.

Conventionally, this type of water storage tank has either had a cylindrical shape as a whole, or a tank with a cylindrical body and both ends shaped like a mirror plate or a dish, as shown in Fig. 1 A, B, and C. be.

These water tanks are connected to water pipes to allow tap water to flow through them at all times, thereby preventing water from stagnation in the tank and preventing water quality from deteriorating due to a drop in residual chlorine. However, stagnant water remained in the corners, and it was believed that the deterioration of water quality caused by this could not be sufficiently prevented.

The present invention has been developed based on the results of various studies to solve the above-mentioned drawbacks of conventional water storage tanks.The reason why stagnant water exists in conventional water storage tanks is at the line 3 connecting the end 1a of the body 1 and the mouth end 2a of the end 2. It was found that this was due to the presence of a corner space 4 between the end body 2b (see FIG. 2), and the conclusion was reached that this corner space 4 should be removed.

That is, in the water tank of the present invention, the water supply port 5, the air valve 6, and the fire hydrant 7 are attached to the upper part, and the drain 8 is attached to the lower part.
A cylindrical body 1 opened in the horizontal direction, an end main body 2b,
2b communicates with terminals 1a, 1a of the body 1, and ends 2a, 2a having a smaller inner diameter than the body 1 connect to water pipes 9, 9. and the mouth corner 2
The end main bodies 2b, 2b are positioned on a straight line connecting the terminals 1a, 1a of the body 1 to the ends 1a, 1a of the body 1.

The material of the body 1 is arbitrary, and cast iron, concrete, or other materials commonly used for this type of water storage tank may be used.

The dimensions of this body 1 may be determined arbitrarily, but usually the inner diameter is 2 to 3.
The length of r'r11 is approximately 8 to 1OrT1.

One of the end parts 2, 2 consists of a mouth end 2a and an end main body 2b, and the end main body 2b communicates with the body part 1 in the manner described above. It can be the same as the one used.

The inner diameter of the adhesive end of the body part 1 of these end parts bodies 2b and 2b is the body part 1.
The inner diameter of the body portion 1 corresponds to the inner diameter of the body portion 1, and the mouth ends 2a, 2a
The inner diameter of the water pipes 9 approximately corresponds to the inner diameter of the water pipes 9, 9.

Further, the distance from the mouth ends 2a, 2a to the body 1 is arbitrary, but is usually about 3 to 4 m.

The mouth ends 2a, 2aa are formed to project slightly outward so as to facilitate connection of the water pipes 9, 9.

Although the ends 2, 2 have a truncated cone or funnel shape in appearance, in actuality of the present invention, the mouth end 2
It is possible to make the end bodies 2b, 2b at the very peripheral parts of a, 2a slightly larger in diameter than the mouth ends 2a, 2a (see left end 2 in FIG. 4).

The body portion 1 and the end portions 2, 2 are closely attached by welding or other means, or are integrally molded to form a water tank.

The water supply port 5, air valve 6, fire hydrant 7, and drain 8 are made of materials and shapes commonly used for this type of water storage tank, and are used for supplying drinking water, venting air, supplying water for fire extinguishing, and discharging mud. It is provided to

The proposed water tank has the above-mentioned configuration, and since the end bodies 2b, 2b are on the straight line connecting the ends 1a, 1a of the body 1 and the mouth ends 2a, 2a, the ends 2.2 There is no corner space.

Therefore, when water is supplied from the water pipe 9 and then drained to the water pipe 9, there is no stagnation of the tap water, so the water quality in the water tank does not deteriorate.

Therefore, the proposed water tank has great benefits when used in this type of field where the demand will increase more and more in the future.

[Brief explanation of the drawing]

Figures 1 and 2 are partial vertical side views of the conventional water tank, Figure 3 is a partial vertical side view of the proposed water tank, and Figure 4 is before the body and end of the proposed water tank are brought into close contact. FIG. 2 is a partially cutaway perspective view in a state of In the figure, 1 is the trunk, 2 is the end, 2a is the mouth, 2b is the end main body, 3 is a straight line connecting the end of the trunk 1 and the mouth end 2a, and 4 is the straight line 3 and the end main body 2b. 5 is a water inlet, 6 is an air valve, 7 is a fire hydrant, 8 is a drain, and 9 is a water pipe.

Claims (1)

[Scope of utility model registration request] A water inlet, an air valve, and a fire hydrant are attached to the upper part, and a drain is attached to the lower part, and the cylindrical body is opened horizontally, and the end body is connected to the end of the body and has an inner diameter smaller than that of the waist body. It is characterized in that it consists of two end parts whose eye ends are connected to water pipes, and the end main body is positioned on a straight line connecting the mouth end and the end of the body part. Water tank for disaster prevention.