JPH0527581Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an antifreeze device for a simple type drain pipe in a residential property.

[Conventional technology and its issues]

In cold regions, water pipes and faucets have traditionally been protected from freezing. In addition, drain pipes used in elevated bridges installed in cold regions,
Rain gutters also freeze in the winter, which can cause them to no longer function properly or even cause damage to the pipes, so do not wrap heating wires or heat generating parts around the outside of the pipes, or simply remove them from inside the pipes. (Refer to Utility Model Publication No. 55-29183).

On the other hand, there is a risk that drainage pipes in residential areas in cold regions may freeze, but the drainage pipes are not pressurized like tap water, and the expansion due to freezing escapes to either side, so the drainage pipes are unlikely to be damaged. Moreover, because they are buried at a certain depth below the ground surface, they are less likely to freeze like viaducts. Therefore, no particular antifreeze measures are taken.

By the way, recently, instead of concrete pipes, simple pipes with small-diameter cleaning ports for cleaning and inspection have come to be used for drainage pipes in residential areas.

In other words, if a typical residential drainage pipe system is shown in Figure 2, 1 is 1.5 to 2 m above the ground surface.
This drain pipe 1 is a drain pipe buried in the residential area.
There are two branch pipes for the kitchen, three branch pipes for the washing machine B, and a bath C.
A branch pipe 4 for the flush toilet D, a branch pipe 5 for the flush toilet D, a branch pipe 6 for the wash basin E, etc. are connected. At the junction of these branch pipes and the drain pipe 1, simple-type basins 2A, 3B, 4 are installed with small-diameter cleaning port pipes for cleaning and inspection.
C, 5D and 6E are provided, each opening opening at the ground surface and the opening being sealed with a cover.

Therefore, such simple type squares 2A, 3B, 4
C, 5D, and 6E are filled with hot water vapor discharged from their respective upstream sides, and in extremely cold regions, this begins to form fog and ice near the opening on the inside of the cleaning port pipe, and eventually freezes and becomes clogged. I ended up
It no longer functions as a box. Moreover, in early spring, some of this ice will melt and fall as solid matter, which may clog the drain pipe 1.

[Means to solve the problem]

Therefore, the present invention was devised to solve the disadvantages of the conventional technology, and its gist is that a simple synthetic resin basin with a small-diameter cleaning port pipe of 75 mm to 250 mmφ is installed. , there is provided a simple freezing prevention device for a basin, characterized in that a heat insulating material is interposed inside the protective iron cover of the cleaning port pipe.

〔Example〕

The structure and operation of the present invention will be explained in detail with reference to embodiments shown in the accompanying drawings.

Figure 1 shows a longitudinal cross-sectional view of the main part of an embodiment of the present invention, and this embodiment is made of synthetic resin to which a PVC residential drainage pipe with a diameter of 150 mm (corresponding to number 1 in Figure 2) can be connected. This is a so-called simple type box 10, and its cleaning opening pipe has a diameter of 200 mm.

This simple type basin 10 is provided with sockets 11 and 12 to which upstream and downstream drainage pipes can be connected, and a socket for a branch pipe (see Figure 2) that is perpendicular to these sockets 11 and 12. has been established. Then, the cleaning port pipe joint 1 is installed upward at the approximate confluence of these joints.
There are 3.

A cleaning port pipe 14 is joined to the cleaning port pipe joint 13, and an upper opening of the cleaning port pipe 14 is opened near the ground surface. A cover 15 that can be opened and closed is provided on this upper opening.

Here, the simple cell 10 of this embodiment is designed for use in cold regions and is configured as follows.
That is, the protective iron lid 16 used for the purpose of not directly applying a load to the simple type box is covered from above. Then, a heat insulating material 17 made of plastic foam is attached between the inner periphery of the cylindrical foot 16a of the protective iron lid 16 and the outer periphery of the cleaning port pipe 14, and to the lower surface of the lid plate 16b, respectively. This is to prevent the mouth tube 14 from freezing.

Note that this protective iron lid 16 has a lid plate 16b.
The cylindrical legs 16a and 16a are both made of iron such as cast iron, and a plastic flange 18 is provided at the lower end of the cylindrical legs 16a to prevent sinking.
Therefore, the present invention is not limited to this protective iron lid 16, but is preferably a pot with a heat insulating material attached inside and a lid at the bottom, but other shapes may be used. Of course, the heat insulating material may be attached to the cleaning port pipe.

Therefore, if the simple type basin 10 for cold regions is covered with this protective iron lid 16 and buried, the hot water steam from the discharge point (for example, the kitchen) will not be cooled by the outside air, and the cleaning opening pipe will be removed. 14, there is no risk of freezing.

[Effect of idea]

According to the present invention, through the insulation material in the cleaning port pipe,
Since the protective iron cover is covered, the cleaning port tube is prevented from being cooled by the outside air, and freezing inside the cleaning port tube can be prevented.

Therefore, conventionally, frozen ice partially melts and falls in early spring, causing clogging of drain pipes, but this can be avoided.

Moreover, since it is a protective iron lid with insulation material,
Although the present invention is a bit of originality, it provides many benefits, such as being extremely easy to attach to the cleaning port pipe and eliminating the need for extra excavation of earth and sand. Of course, when using the present invention, there is no problem with the box function.

[Brief explanation of the drawing]

Figure 1 is a vertical sectional view of the main part of the embodiment of the present invention, Figure 2
The figure shows an external view of a drainage pipe system in a general residential area. 10...Simple box, 14...Cleaning port pipe, 16...
...Protective iron lid, 17...Insulation material.

Claims (1)

[Scope of Claim for Utility Model Registration] A simple type basin made of synthetic resin in which a cleaning port pipe with a small diameter of 75 mm to 250 mmφ is set upright, characterized in that a heat insulating material is interposed inside a protective iron lid of the cleaning port pipe. This is a simple type freezing prevention device for pipes.