JPS6320751Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a pipe for distributing water, such as a downpipe.

[Background technology]

In the case of pipes that discharge water, such as downpipes, ice tends to form inside the pipes during the winter, especially in cold regions, and when such ice forms, there is a problem in that the pipes may burst.

[Purpose of invention]

The present invention has been made in view of the above points, and an object of the present invention is to provide a pipe that can prevent freezing.

[Disclosure of invention]

However, the pipe according to the present invention has a pipe body 1
A vertical filling chamber 2 is formed on the inner circumferential surface of the filling chamber 2, and an anti-icing agent 3 is filled in the filling chamber 2, and at the same time, the inside of the pipe body 1 and the inside of the filling chamber 2 communicate with each other on the wall 4 of the filling chamber 2. The invention is characterized in that it is provided with holes 5, and the anti-icing agent 3 can be used to achieve the above object. do.

Figures 1 and 2 show an embodiment of the present invention, in which a pipe used as a downpipe is formed of a double cylinder, consisting of a pipe body 1 serving as an outer cylinder and an inner pipe 6 serving as an inner cylinder. Partition plates 7 are installed between the pipe body 1 and the inner pipe 6 at regular intervals to integrate the pipe body 1 and the inner pipe 6. A filling chamber 2 is surrounded by the pipe main body 1, an inner pipe 6, and a partition plate 7 and extends over almost the entire length in the longitudinal direction, and the openings at the upper and lower ends of the filling chamber 2 are closed with lids or the like. be. In addition, a communication hole 5 is bored in the inner pipe 6 which forms the wall portion 4 of the filling chamber 2, so that the inside of the central portion of the pipe body 1 and the inside of the filling chamber 2 communicate with each other. And in each filling chamber 2 there is an anti-icing agent 3.
is filled. Anti-icing agents 3 include calcium chloride (CaCl ₂ ), sodium chloride (NaCl), potassium chloride (KCl), etc., which are traditionally used to prevent snow from freezing by spraying it on roads during snowfall. It can be used, and the filling chamber 2 is filled with the pulverized powder.

However, in the case of a lever, when rainwater such as melted snow flows down the center of the pipe body 1, that is, inside the inner pipe 6, the rainwater enters the filling chamber 2 through the communication hole 5 of the inner pipe 6, and the anti-icing agent 3 flows out from the communication hole 5 into the inner pipe 6 again in a deliquesced state,
The action of the anti-icing agent 4 prevents icing from forming within the pipe constituted by the pipe body 1 and the inner pipe 6.

3 and 4 show another embodiment of the present invention, in which a cylindrical piece 8 having a semicircular cross section is integrally protruded from the inner peripheral surface of the pipe body 1 over almost the entire length in the longitudinal direction. As a result, a filling chamber 2 is formed within the cylindrical piece 8. In this case, a communication hole 5 is bored in the cylindrical piece 8 which becomes the wall part 4, and the filling chamber 2
An anti-icing agent 3 is filled inside the filling chamber 2, and the upper and lower ends of the filling chamber 2 are closed with lids or the like. In this case as well, rainwater passing through the pipe body 1 flows into the filling chamber 2 through the communication hole 5 and acts on the anti-icing agent 3 in the same manner as above, preventing freezing in the pipe. Prevention takes place.

In each of the above examples, the anti-icing agent was used as it is, but it is also possible to mix the anti-icing agent with adhesive resin and other resins, especially emulsion resin, and further mix granular filler aggregate such as calcium carbonate with this. The resulting anti-icing composition may also be used. When used as such an anti-icing composition, the anti-icing composition is filled into the filling chamber 2 and allowed to solidify. When it enters the filling chamber 2 through the communication hole 5, the anti-icing agent in the anti-icing composition passes through the filling aggregate and precipitates on the surface in the form of powder, and the precipitated icing is The inhibitor prevents freezing from occurring within the downpipe.

[Effect of idea]

As mentioned above, in the present invention, a filling chamber is formed in the vertical direction on the inner peripheral surface of the pipe body, the filling chamber is filled with an anti-icing agent, and the wall of the filling chamber is provided with a filling chamber inside the pipe body and inside the filling chamber. Since the pipe is provided with a communication hole, the rainwater flowing inside the pipe will enter the filling chamber through the communication hole, deliquify the anti-icing agent, and then flow into the pipe body again through the communication hole. The action of the anti-icing agent can prevent freezing from forming within the pipe body.

[Brief description of the drawings]

Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is a partially cutaway perspective view of the same, Fig. 3 is a sectional view of another embodiment, and Fig. 4 is a partially cutaway perspective view of the same. be. 1 is a pipe body, 2 is a filling chamber, 3 is an anti-icing agent, 4 is a wall portion, and 5 is a communicating hole.

Claims (1)

[Scope of utility model registration request] A pipe in which a filling chamber is formed in the vertical direction on the inner peripheral surface of the pipe body, an anti-icing agent is filled in the filling chamber, and a communication hole is provided in the wall of the filling chamber through which the inside of the pipe body and the filling chamber communicate with each other.