JP2549729Y2 - Corrosion protection cover for fittings - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anticorrosion cover for a joint used for a bent pipe joint.

[0002]

2. Description of the Related Art Conventionally, anticorrosion covers for joints used for bent pipe joints are, for example, 90 °, 45 °, 22 ° 1/2.
A bent pipe joint having an angle corresponding to each angle was required.

[0003]

However, as described above, when a corrosion protection cover for a joint is required at each angle of a bent pipe joint, a mold for molding the corrosion protection cover for each joint is required. There was a problem that a large amount of cost was required for mold production.

An object of the present invention is to solve the above-mentioned conventional problems.

[0005] That is, it is an object of the present invention to provide an anticorrosion cover for a joint, which is of one kind and can be applied to a bent pipe joint having a different angle and requires less cost for manufacturing a mold.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an inner cover consisting of a pair of halves covering an upper half of a bent pipe joint, and a lower half of the bent pipe joint. An outer cover consisting of a pair of halves covering the outer pipe, the inner diameter of the outer cover of the outer cover covering the bent portion of the bent pipe joint is substantially equal to or slightly larger than the outer diameter of the inner cover. It has been done.

[0007]

When used for a bent pipe joint having a large angle, the upper and lower halves of the bent pipe cover of the bent pipe joint are covered with the bent cover sections of the inner cover and the outer cover. And bind them with a band over the outer cover.

In the case of using a bent pipe joint having a small angle, the cover portions of the cover are overlapped and bound by a band from above the outer cover.

When used for a bent pipe joint having a smaller angle, one cover is cut into a predetermined size, and the cut one cover is overlapped with the other cover and bound with a band from above the outer cover. .

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a joint anticorrosion cover according to the present invention.

FIG. 1 is a sectional view showing an embodiment of the anticorrosion cover for a joint according to the present invention, in which a bent pipe joint having an angle of 90 ° joined to pipes 9, 9 and flanges 8, 8 is covered. FIG. 2 shows the anticorrosion cover for the joint used in FIG.
FIG. 3 is a cross-sectional view showing a state in which a bent pipe joint having an angle of ° is covered, FIG. 3 is a cross-sectional view of a fitting portion showing a state in which the bent pipe joint is covered with an anticorrosion cover for an example, and FIG. It is sectional drawing of the fitting part which shows the state which covered the bent pipe joint with the anticorrosion cover for joints.

The joint anticorrosion cover 1 according to the present invention includes an inner cover 3 composed of two halves 2, 2 covering an upper half of a bent pipe joint, and two halves 4, covering a lower half. 4 and an outer cover 6.

The inner diameter of the curved cover 61 of the outer cover 6 is substantially equal to or slightly larger than the outer diameter of the curved cover 31 of the inner cover 3.

FIG. 1 shows a state in which a bent pipe joint T1 having an angle of 90 ° is covered with a joint anticorrosion cover 1 of the present invention.

[0015] The inner cover 3 and the outer cover 6 cover the upper and lower halves of the bent pipe joint T1.
The end portion 62 of the curved portion covering portion 61 of the outer cover 6 is superimposed on the end portion 32 of the curved portion covering portion 31 and bound by the band 7.

FIG. 2 shows a state in which a bent pipe joint T2 having an angle of 45 ° is covered with the joint anticorrosion cover 1 of the present invention.

This is bound by a band 7 from above the end portions 32 and 62 of the curved portion covering portions 31 and 61 of the inner cover 3 and the outer cover 6 respectively.

Further, when a bent pipe joint having an angle smaller than that shown in FIG. 2, for example, an angle of 22 ° 1/2 is covered with the anticorrosion cover 1 for joints of the present invention, the following will be performed.

That is, the inner cover 3 or the outer cover 6
Is cut to a predetermined size, and the cut portions 31 and 61 of the cut covers 3 and 6 are overlapped with each other and bound by the band 7.

As described above, one type of anticorrosion cover 1 for joints is used.
Thus, the bent pipe joints T1 and T2 having different angles can be covered.

FIG. 3 shows that the edges of the respective halves 2 and 2 on the inner cover 3 abut against each other, and the two circumferential edges 4 of one of the halves 4 on the outer cover 6.
a, 4a are provided on both ends 4b, 4b in the circumferential direction of the other half body 4;
Are superimposed.

FIG. 4 shows that the flanges 41 are formed at the edges of the respective half bodies 4 and 4 in the outer cover 6, and these flanges 41 abut each other.

The anticorrosion cover 1 for a joint according to the present invention.
Can be applied not only to the above-mentioned bent pipe joints having angles of 90 °, 45 °, and 22 ° 1/2, but also to bent pipe joints having other angles.

[0024]

[Effects of the Invention] As described above, according to this invention, since the bent pipe joint is covered by the inner cover and the outer cover made of a half body, the anticorrosion work at the site is simple, and the work Mistakes can be reduced.

Also, since one kind of the present invention can be applied to a bent pipe joint having a different angle, the number of molds can be reduced because only one mold is required, and the cost of the mold is reduced. I can do it.

It is possible to reduce the number of inventories of the molded products by size, and it is easy to manage the inventories.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state in which a bent pipe joint having an angle of 90 ° is covered with an anticorrosion cover for a joint according to an embodiment of the present invention.

FIG. 2 is a sectional view showing a state in which a bent pipe joint having an angle of 45 ° is covered by the joint anticorrosion cover used in FIG. 1;

FIG. 3 is a cross-sectional view of a fitting portion showing a state where a bent pipe joint is covered with an example of a corrosion protection cover for a joint.

FIG. 4 is a cross-sectional view of a fitting portion showing a state where a bent pipe joint is covered with an anticorrosion cover for a joint of another example. DESCRIPTION OF SYMBOLS 1 Corrosion-proof cover for joints 2 Half body 3 Inner cover 4 Half body 6 Outer cover 31, 61 Curved part covering part

Claims (1)

(57) [Scope of request for utility model registration] An anticorrosion cover for a joint used in a bent pipe joint, comprising: an inner cover comprising a pair of halves covering an upper half of the bent pipe joint; and a pair of half covers covering a lower half of the bent pipe joint. The inner diameter of the curved portion covering portion of the outer cover that covers the bent portion of the bent pipe joint is substantially equal to or slightly larger than the outer diameter of the curved portion covering portion of the inner cover. Anti-corrosion cover for fittings.