JPS5817973Y2 - Protector for piping - Google Patents

Description

[Detailed description of the invention] This invention relates to a pipe protector, and in particular, a bellows-like unevenness that can be freely expanded and contracted is formed on the tapered tip opening of a gutter-like main body, and this expands and adheres to the outer surface of the pipe during construction to ensure airtightness. It completely prevents concrete from flowing into the gutter-shaped main body, prevents the tip of the pipe from being hardened or blocked by concrete, and makes it possible to connect the pipe when the frame plate is removed after the concrete solidifies.
The purpose is to improve work efficiency by making it possible to smoothly and reliably lead out power lines, etc. from piping.

In buildings constructed of concrete, when configuring ceilings, walls, etc., the openings at the ends of the insertion pipes for power lines, etc. buried in these areas are protected from the concrete so that they can easily protrude into predetermined positions on the ceilings, walls, etc. Various piping protectors of this type used for this purpose are conventionally known.

For example, ■ A narrow part 4' having a cut groove 3' is provided in the tip opening 1 of the gutter-shaped main body 1' (see Fig. 8, I-9 B),
■ Sponge or other dam filler is pasted on the inner surface of the tip opening τ of the gutter-shaped main body 1' (see Figure 9), ■ The tip opening 2' of the gutter-shaped main body 1' is properly Squeezed (1st
(See Figure 0), etc. However, in the case of ■■, not only is it time-consuming to manufacture, but also the adhesion to the piping is not good, so concrete may still get inside the gutter-shaped main body from the gaps between the cut grooves and the narrowed part. Inflow.

In addition, after forming the gutter-like main body, it is necessary to attach sponge or other dam filling material to the type (■), which requires a lot of effort and cost to manufacture, making the product extremely expensive.
There were drawbacks such as.

This invention eliminates the above-mentioned conventional drawbacks, and the gist of the structure is to form a bellows-like unevenness that can be expanded and contracted in the tapered tip opening of the gutter-like main body to constitute a pipe protector. When the piping protector is placed over the piping, the tapered end opening is stretched and brought into close contact with the outer surface of the piping to maintain airtightness and prevent concrete from flowing into the columnar main body.

This invention will be explained below based on the embodiments shown in the drawings.

1 and 1, reference numeral 1 denotes a gutter-like main body whose proximal end is closed and whose distal end is tapered and opened, and the tapered distal opening 2 has elastic bellows-like irregularities. 3 was formed.

Note that a protrusion 4 for damming is integrally formed at the base end of the bellows-like uneven portion 30.

Further, 5 is a mounting seat for the gutter-like main body 1, and a pair of elongated holes 6, 6'
Even if multiple mounting holes are provided, including the hole 7 and the middle hole 7,
Ru.

Figures 5 and 6 are a plan view and a side view of the construction state.
9 indicates reinforcing bars, 9 indicates piping, and 10 indicates a frame plate.

It is best to form the bellows-shaped unevenness 3 in a bellows-like shape with continuous chevron-shaped unevenness that gradually becomes deeper as it reaches the tip, with respect to the tapered tip opening 2 whose diameter decreases as it reaches the tip. The shape etc. can be freely implemented.

Further, if the damming protrusion 4 is integrally formed at the base end of the bellows-like uneven portion 30 as in the embodiment, the sealing operation becomes more reliable, which is useful in practice.

Furthermore, there are cut grooves 11° 11 at the base on both sides of the tip opening 20.
′ is advantageous because the tip opening can conform to and adhere to it even if the diameter of the pipe differs to some extent.

In the above configuration, if the gutter-shaped main body 1 is placed over the tip of the pipe 9 and the mounting seat 5 is nailed to the frame plate 10, the bellows-like uneven portion 3 of the tip opening 2 will expand and come into close contact with the outer surface of the pipe. (
(See Figures 4 and 7).

Therefore, when concrete is subsequently poured, there is no possibility that concrete will flow into the gutter-like main body 1, so there will not be any problems such as the tip of the pipe 9 being hardened by the concrete that has flowed in, or the opening being blocked. After the concrete has solidified, when the frame plate is removed, only the tips of the pipes can be held in a state where they can be bent downward without damaging the concrete, making it possible to connect pipes and lead out power lines etc. smoothly and reliably. Significantly improve efficiency.

Furthermore, since the structure is very simple, if it is made of metal or synthetic resin, it is possible to mass-produce uniform products, resulting in lower product costs.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the invention, Fig. 2 is a front view, Fig. 3 is a side view, Fig. 4 is an enlarged cross-sectional view of the main parts, and Fig. 5 is a plan view of the device in use. FIG. 6 is a front view of the same, FIG. 7 is an enlarged sectional view of the same, and FIG. The mouth is a front view and a side view of a conventional example, and FIGS. 9 and 10 are side views of a different conventional example. 1...Gutter-shaped main body, 2...Tapered tip opening, 3...
- Bellows-like uneven portion, 4... damming protrusion.

Claims (1)

[Scope of utility model registration request] A pipe protector characterized by forming elastic bellows-like unevenness on the tapered end opening of a gutter-like main body.