JP3536185B2 - Insulating tube support - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support for gas, water, and other pipes (hereinafter referred to as a "pipe"), and more particularly to an insulating bridge support using U bolts.

[0002]

2. Description of the Related Art In order to support a suspension pipe, U-bolts and nuts are mostly used to support the suspension pipe, and the suspension pipe is fixed to the support plate. However, due to the thermal expansion and contraction of the pipe due to the change of climate, the pipe and the support may rub against each other and the pipe may be damaged.

For this reason, in the bridge support member, a resin having a small friction coefficient, for example, a tetrafluoroethylene resin is often used in a place where the bridge is in contact with the bridge support so that the bridge is slippery, and electrical corrosion is caused. In order to avoid it, electrical insulation between the tube and the support is also performed, and tetrafluoroethylene resin is also used for this purpose.

[0004] As for the support member which is made of tetrafluoroethylene resin and which makes the frame slippery and electrically insulates the frame from the support plate,
Many inventions and inventions are known, but few are satisfactory. That is, since the tetrafluoroethylene resin is used as a release agent and does not adhere to metal, in order to fix the tetrafluoroethylene resin to the U-bolt, press the U-bolt at its contact point or crimp it. I had to do it. Therefore, the plating of the U-bolt may be peeled off at that location and rust may occur later.

SUMMARY OF THE INVENTION The present invention is intended to provide a method for easily insulating a U-bolt with certainty and a method for insulating an U-bolt using the U-bolt thus obtained.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems and provides an insulative bridge support which comprises a U-bolt, a support plate, a nut and an insulating cushion material made of synthetic resin on the support plate. , A rectangle made of a synthetic resin in which a rectangular groove is provided on the entire side of the U-bolt that is in contact with the bridge, and the groove has a thickness equal to or greater than the depth of the groove and a U-shaped cross-section is provided on the entire surface that is in contact with the bottom surface of the groove. After fitting the insulating molded body, a metal round bar having a diameter slightly larger than the diameter of the U-shaped groove is inserted into the U-shaped groove, and the synthetic resin insulating molded body is attached to the side surface of the rectangular groove of the U bolt. The present invention relates to a method of insulating a U-bolt for fixing an insulative molded body made of a synthetic resin by pressing to a U-bolt, and an insulating tubing support using the U-bolt insulated by the method.

The width of the groove provided in the U bolt may be about 1/2 to 1/5 of the diameter of the U bolt, and the depth thereof may be the same as the width or about 1/2 thereof, and the groove may be the U bolt. It is provided throughout.

The synthetic resin rectangular insulating molded body (hereinafter referred to as a rectangular insulating body) fitted in the groove of the U bolt is preferably made of a tetrafluoroethylene resin containing a filler.
It suffices to have a width equal to the width of the groove of the bolt and a thickness of about 2 to 3 times the depth of the groove of the U bolt.

A groove having a U-shaped cross section is provided over the entire surface of the rectangular insulator which is in contact with the groove bottom surface of the U-bolt, and the width and depth of the U-shaped groove are 1 / the width of the rectangular insulator.
The bottom of the U-shaped groove has a semicircular shape if it is about 2 to 1/3. Before fitting the rectangular insulator in the groove of the U bolt,
It is preferable that an adhesive is applied to the bottom surface of the groove of the bolt and / or the bottom surface of the rectangular insulator to fit the rectangular insulator into the groove of the U bolt.

The diameter of the metal round bar inserted in the U-shaped groove may be 5 to 10% larger than the diameter of the U-shaped groove, and such metal that can be bent to some extent, such as iron or aluminum. That's fine. After fitting the rectangular insulator into the groove of the U-bolt, the metal round bar is inserted from one end of the rectangular insulator into the U-shaped groove of the rectangular insulator while applying pressure.

By doing so, the portion of the rectangular insulator fitted in the groove of the U-bolt is pressed against the groove side surface of the U-bolt with pressure by the metal round bar, and the rectangular insulator is completely attached to the U-bolt. It will be fixed. This will be described in detail below with reference to examples.

[0012]

【Example】

Example 1 FIG. 1 is a schematic cross-sectional view of an insulating tubing support using U-bolts insulated by the method of the present invention, FIG. 2 is an enlarged cross-sectional view taken along the line AA, and FIG. 3 is a line BB. FIG.

In the drawing, 1 is a U bolt having a diameter of 16 mm,
2 is the nut, 3 is a support plate having a thickness of 9 mm, 4 is a mount,
5 is a 9 mm thick insulating cushion made of synthetic resin, 6 is a flexible rectangular insulating molded article made of tetrafluoroethylene resin containing a filler (rectangular insulator), 7 is a round bar made of metal, and 8 is a rack. Tube (150 mm diameter), 12 is a rectangular groove.

FIG. 4 shows a rectangular insulator (length 7 mm, width 6 m).
m) is a sectional view of 6 only, U with a width of 3 mm and a depth of 3 mm
A V-shaped groove 9 is provided in the center, and the cross-section bottom of the U-shaped groove is a semicircle with a radius of 1.5 mm. The rectangular groove 12 of the U bolt
Has a width of 8 mm and a depth of 5 mm, and is a size to which the rectangular insulator 6 can be fitted. The metal round bar is made of stainless steel and has a diameter of 3.
It is 2 mm and has the same length as the rectangular insulator and is inserted into the U-shaped groove.

In this embodiment, an auxiliary support plate 10 having the same curvature as the outer surface of the frame is welded on the support plate 1 via two auxiliary round bars 11, and the auxiliary support plate has a surface on the surface. An insulating cushioning material of the same curvature having a thin layer (1 mm) of tetrafluoroethylene resin is provided. The U bolt 1, its rectangular groove 12 and other dimensions are appropriately determined depending on the diameter of the frame 8.

Embodiment 2 FIG. 5 is a cross-sectional view of an insulating bridge support of another embodiment. The difference from Embodiment 1 is that there is no auxiliary support plate bonded through an auxiliary round bar. , Synthetic resin insulation cushioning material is a thin layer (1mm) of tetrafluoroethylene resin on the surface of 6mm thickness
It is the same as in Example 1 except that it is adhered to the support plate with an insulating resin having.

[0017]

According to the present invention, since the rectangular insulator is firmly fixed to the U-bolt by the round rod made of metal, the rectangular insulator and the U-bolt, that is, the support for the tubular pipe do not come off even after long-term use. Since it can completely insulate and is firmly fixed from the beginning, there is no need to press or crimp to the U bolt to fix the rectangular insulator, so the U bolt can be plated by pressing or crimping. The U-bolt is not peeled off, and the U-bolt is not damaged or rusted.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of an insulating tubing support using U-bolts insulated by the method of the present invention.

2 is an enlarged cross-sectional view taken along the line AA of FIG.

3 is an enlarged cross-sectional view taken along line BB of FIG.

FIG. 4 is a cross-sectional view of only the rectangular insulator 6.

FIG. 5 is a schematic cross-sectional view of another embodiment of the insulating tubing support.

[Explanation of symbols] 1 U bolt 2 nuts 3 Support plate 4 mounts 5 Synthetic resin cushioning material 6 synthetic resin rectangular insulating molded body 7 Metal round bar 8 tube 9 U-shaped groove 12 U bolt rectangular groove

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Toru Watanabe Toru Watanabe 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Inside Nippon Kokan Co., Ltd. (72) Tadaharu Kurono 3-6-1 Mukotoyocho, Amagasaki City, Hyogo Prefecture 605 (56) Reference JP-A-48-31354 (JP, A) Actually opened 51-82018 (JP, U) Actually opened 50-94352 (JP, U) Actually opened 64-29546 (JP, U) Actual opening Sho 64-27590 (JP, U) Actual opening Sho 46-27949 (JP, U) Actual opening Sho 55-154870 (JP, U) Actual opening Sho 54-154419 (JP, U) Actual opening Sho 53-23018 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) F16L 3/12 F16L 3/00

Claims (3)

(57) [Claims] 1. An insulating tubing support comprising a U-bolt, a support plate, a nut and a synthetic resin insulating cushioning material on the support plate, wherein a rectangular groove is provided on the entire side of the U-bolt that contacts the tubing. A synthetic resin rectangular insulating molded body having a U-shaped groove in cross section is fitted on the entire surface of the groove having a thickness equal to or greater than the depth of the groove and contacting the bottom surface of the groove. Insert a metal rod with a slightly larger diameter into the U-shaped groove and press the synthetic resin insulating molded body against the rectangular groove side surface of the U bolt to fix the synthetic resin insulating molded body to the U bolt. Insulation processing method. 2. The method for insulating U-bolt insulation according to claim 1, wherein the synthetic resin is a tetrafluoroethylene resin containing a filler. 3. An insulating tubing support using U-bolts insulated by the method according to claim 1 or 2.