JP3108676U - Guard tube - Google Patents

Abstract

An object of the present invention is to prevent scratches caused when wires or pipes are inserted into a concrete or metal sleeve with a very simple structure.
A guard pipe for inserting a wiring or pipe into a concrete or metal sleeve, which is made of a synthetic resin such as vinyl chloride and formed along the inner wall of the sleeve. The tubular portion 2, the enlarged diameter portion 3 formed at the upper end of the tubular portion 2, and the enlarged diameter portion 3 and the kerfs 4 and kerfs 5 formed in the tubular portion 2 along the length direction of the tubular portion 3. Guard pipe to be used [selection figure] Fig. 2

Description

  The present invention relates to a guard pipe when wiring or piping is inserted into holes such as a sleeve and a core formed in a building structure such as a floor or a beam.

  Holes such as concrete or metal sleeves and core holes for inserting wiring or piping are formed in floors and beams of building structures, and wiring such as wires covered with vinyl or refrigerant pipes are formed in these holes. Pipes such as polybden water and hot water pipes are inserted.

  In this case, when inserting the water supply / hot water supply pipe made of Polybden into the hole, the surface of the water / hot water supply pipe is rubbed in the vertical direction by rubbing on the inner peripheral wall of the hole. May occur.

  Further, when the refrigerant pipe is inserted into the hole, the heat insulating material on the surface of the refrigerant pipe may be torn or scratched.

  Furthermore, when the electric wire is inserted into the hole, the vinyl coating on the surface of the electric wire may be damaged, or the vinyl coating may be broken to cause insulation failure.

In order to prevent the wiring or piping from being damaged when the wiring or piping is inserted into the holes formed in these building structures, the wiring or piping is conventionally inserted after the corrugated board is addressed to the holes. It has been broken.
Japanese Utility Model Publication No. 4-20573, Japanese Patent Application Laid-Open No. 11-10629

  However, if cardboard or the like is procured at the construction work site and addressed to the hole, there is a problem that work efficiency is extremely poor.

  Therefore, in view of the above circumstances, this device is a guard pipe for inserting wiring or piping into a hole formed in a building structure, and includes a tubular portion formed along the inner wall of the hole and the tubular portion. The present invention proposes a guard tube having an enlarged diameter portion formed at the upper end, and a kerf formed in the tubular portion and the enlarged diameter portion along the length direction of the tubular portion.

  In this device, the holes through which the wiring or pipes are inserted include concrete or iron metal sleeves formed on the floor or beam of the building structure, core holes, etc., and connections formed on the floor of the building structure. Examples of the sleeve include a slab formed on a deck slab having a deck plate interposed therebetween.

  In addition, examples of wiring or piping inserted into the hole include an electric wire with a vinyl coating on the surface, a refrigerant pipe with a surface coated with a heat insulating material, and a water supply / hot water supply pipe made of polybden. It can also be used for pipes with protruding branch pipes.

  On the other hand, the guard pipe according to the present invention is made of a synthetic resin such as vinyl chloride, and when inserting a wire or a pipe into a hole formed in a building structure, the enlarged diameter portion is projected from the opening of the hole. The tubular portion is inserted along the inner wall of the hole, and the wiring or piping is inserted into the tubular portion along the inner wall surface of the enlarged diameter portion, and then removed from the groove and the guard tube is pulled out from the hole.

  As a result, when wiring or piping is inserted into the hole, a guard pipe made of synthetic resin such as vinyl chloride is interposed between the wiring or piping and the inner wall of the hole, so that the surface of the wiring or piping is damaged. It is never done.

  Therefore, according to this device, when a polybuden water / hot water pipe is inserted into a hole formed in a building structure, the surface of the water / hot water pipe is rubbed against the surface of the water / hot water pipe by rubbing against the inner peripheral wall of the hole. There is nothing that can be done.

  In addition, the insulation material when the refrigerant pipe is inserted into the hole is broken, the hook is scratched, the vinyl coating is damaged when the electric wire is inserted into the hole, the vinyl coating is broken, which causes insulation failure, etc. It does not occur.

  The guard tube according to the present invention is suitable not only for preventing wiring and piping from being scratched when inserted into the sleeve, but also for curing the sleeve.

  In addition, the guard pipe according to the present invention can be used for a plurality of holes such as a sleeve and a core hole formed in a building structure. Therefore, the guard pipe is not only economical, but also can improve work efficiency.

  When wiring or piping is inserted through the connecting sleeve formed on the floor, the guard tube is inserted into the sleeve so that the cut groove is aligned with the connecting groove of the sleeve.

  Also, when piping or piping is inserted into the sleeve provided in the deck slab, the wiring or piping may be damaged at the upper end and the lower end of the sleeve. It is preferable to lengthen the wiring or the piping from being damaged at the upper end portion and the lower end portion of the sleeve.

  In addition, the opening angle of the both ends of the kerf formed in the enlarged diameter portion of the guard pipe according to the present invention can be arbitrarily set depending on the diameter of wiring or piping inserted into the hole, etc. If both end faces of the formed kerf are flush with each other, two sets of guard pipes can be joined by abutting the both end faces, and by using these joined guard pipes, wiring or Both side surfaces of the pipe can be guarded, and therefore, for example, it is suitable when a pipe having a branch pipe or the like protruding from one side thereof is inserted into the hole.

  A guard pipe for inserting wiring or piping into a concrete or metal sleeve, which is made of synthetic resin such as vinyl chloride, and is formed along the inner wall of the sleeve, and the upper end of the tubular part A guard tube comprising an enlarged-diameter portion formed in the tube and a kerf formed in the enlarged-diameter portion and the tubular portion along the length direction of the tubular portion.

  Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. 1 is a guard pipe made of vinyl chloride according to the present invention, 2 is a tubular portion, 3 is an expansion formed at the upper end of the tubular portion 2. A kerf 4 is formed in the tubular part 2 along its length direction, and a kerf 5 is formed on the extended diameter part 3 on the extension of the kerf 4.

  In addition, 5a and 5a are the end surfaces of the cut groove 5 formed in the enlarged diameter part 3, and the opening angle (alpha) of the end surfaces 5a and 5a is about 60 degree | times.

  When the guard pipe 1 according to the present invention is used, the tubular portion 2 is inserted into the sleeve 6 made of concrete, for example, and the water supply / hot water supply pipe 7 made of polybden is protruded from the sleeve 6 along the expanded diameter portion 3. Then, the water supply / hot water supply pipe 7 is removed from the groove 4 and the guard pipe 1 is pulled out from the sleeve 5.

  As a result, the pipe 7 is inserted into the sleeve 6 with the guard pipe 1 interposed therebetween, so that the surface of the wiring or the pipe is not damaged.

  FIG. 3 shows an embodiment in which the end surfaces 5a and 5a of the kerf 5 formed in the enlarged diameter portion 3 of the guard pipe 1 according to the present invention are flush with each other. By joining the surfaces 5a and 5a, two sets of guard pipes 1 and 1 can be joined. The joined guard pipes 1 and 1 are inserted into the sleeve 6 and a branch pipe 8 is formed on one side thereof. If the protruding pipe 7 is inserted, both sides of the pipe 7 are guarded by the guard pipes 1 and 1.

  Thereby, both sides of the pipe 7 in which the valve mounting port 8 protrudes on one side are protected by the two sets of guard pipes 1 and 1 and are not damaged.

  In short, according to the present invention, it is possible to prevent scratches that occur when wiring or piping is inserted into a concrete or metal sleeve with a very simple structure.

1 shows an embodiment of a guard pipe according to the present invention, in which (a) is a plan view, (b) is a side view, and (c) is a sectional view taken along line AA. The perspective view which shows the usage condition of a guard pipe same as the above The other example of the guard pipe concerning this device is shown, (a) is a top view, (b) is a side view, (c) is a BB line sectional view. Plan view showing usage of the guard pipe Longitudinal side view

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 is a guard pipe concerning this invention, 2 is a tubular part 3, 3 is an enlarged diameter part 4, 4 is a groove formed in a tubular part 5 is a groove formed in an enlarged diameter part
5a, 5a is the end face of the kerf 5 6 is a concrete sleeve 7 is a polybden water / hot water supply pipe 8 is a branch pipe

Claims (2)

A guard pipe for inserting wiring or piping into a hole formed in a building structure, and a tubular part formed along the inner wall of the hole and a diameter-enlarged part formed at the upper end of the tubular part. A guard tube characterized in that a cut groove is formed in the tubular portion and the enlarged diameter portion along the length direction of the tubular portion. The guard pipe according to claim 1, wherein both end faces of the kerf formed in the enlarged diameter portion are flush with each other.

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