JPH0644326U - Bus duct wall penetration structure - Google Patents

Abstract

(57) [Summary] [Purpose] Assemble workability without welding. [Structure] The first closing body 16 and the second closing body are respectively fitted into the case 13 of the bus duct 12, and the fixing bolt 20
Fix with a and nut 20b. Then, the flange portions 18A and 18B of the first closing body 16 and the flange portion of the second closing body are tightened with the tightening bolts 23, and the through hole 11 is closed by both wall surfaces of the wall 10.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wall penetrating structure in which a through hole is provided in a wall of a building and a bus duct is passed through the through hole.

[0002]

[Prior art]

 FIG. 5 shows a wall penetration structure of a conventional bus duct. In FIG. 5, reference numeral 1 is a wall of the building, and a through hole 3 through which the bus duct 2 penetrates is formed in the wall 1. A partition plate 4 is fixed by welding 5 on the case 2a of the bus duct 2. The end of the partition plate 4 is fixed to the wall surface 1a in the vicinity of the through hole 3 with a fixing bolt 6 via a packing 7 while maintaining liquid tightness.

[0003]

[Problems to be solved by the device]

 However, when welding the partition plate 4 onto the case 2a of the bus duct 2, this welding operation requires a great deal of time and requires a skilled worker. In addition, the partition plate 4 is likely to be distorted due to welding, and thus it is difficult to reliably waterproof the packing 7. Further, since the welding work needs to be performed on the outdoor side, it is also necessary to remove the combustibles and the like existing near the wall surface 1a on the outdoor side. The present invention has been made to solve such a point, and an object thereof is to provide a wall-penetrating structure for a bus duct that does not require welding and can be assembled with good workability.

[0004]

[Means for Solving the Problems]

 The present invention relates to a wall-penetrating structure of a bus duct provided in a wall having a through-hole through which the bus duct passes. The feature is that the first and second closures are provided.

[0005]

[Action]

 Since the first and second closing bodies have a two-part structure, they can be fitted and fixed in a state where the through hole is closed on the case of the bus duct. Therefore, welding work becomes unnecessary.

[0006]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of a wall-penetrating structure of a bus duct according to the present invention, and FIG. 2 is a sectional view taken along line AA of FIG. In these figures, 10 is a wall of a building, and this wall 10 is provided with a rectangular through hole 11. A bus duct 12 penetrates through the through hole 11 and is arranged. The bus duct 12 has a case 13 having a rectangular cross section, a conductor 14 is arranged in the case 13, and each conductor 14 is supported in the case 13 by an insulating spacer 15.

The wall penetrating structure of the present invention has the first closing body 16. The closing body 16 has a structure in which it is vertically divided into two parts. Flanges 18A and 18B that are formed as desired, and connecting plate portions 19A and 19B that project outward from both ends of the fitting portions 17A and 17B.

The first closing body 16 having the above-described configuration has a fitting portion on the case 13 in a state where the flange portions 18 A and 18 B are in contact with one wall surface 10 a of the wall 10 with the packing 22 interposed therebetween. 17A and 17B are fitted from above and below, and the connecting plate portions 19A and 19B facing each other are fixed on the case 13 by tightening and connecting the fixing bolts 20a and nuts 20b with the packing 21 interposed. .

Further, the wall penetrating structure of the present invention has a second closing body 16 'as shown in FIG. This closing body 16 'has exactly the same structure as the above-mentioned first closing body 16, and as shown in FIG. 2, it is brought into contact with the other wall surface 10b of the wall 10 on the case 13 and similarly fitted, It is fixed.

A plurality of tightening bolts 23 are passed through the flange portions 18 A and 18 B of the first closing body 16. The heads of these tightening bolts 23 are fixed to the flange portions 18A and 18B by welding in advance, penetrate the inside of the through hole 11, and pass through the through holes provided in the flange portion 18A 'of the second closing body 16'. Has been done. Then, a nut 24 is screwed and tightened to the tip screw portion of these tightening bolts 23 via a spring washer or the like.

As described above, the first and second closing bodies 16 and 16 ′ are fitted and fixed to the case 13, and the flange portions 18 A, 18 B and 18 A ′ are tightened by the tightening bolt 23 via the packing 22. When tightened, the through hole 11 of the wall 10 can be closed while maintaining liquid tightness from both wall surfaces 10a, 10b side.

[0012] Since the welding work is not required, the wall penetrating structure can be assembled without the workability even if it is not a skilled person, and the combustible material and the like can be assembled. Since no distortion or the like is caused in ′ and both sides of the through hole 11 are closed by the packing 22, the waterproof property can be improved. Further, in this embodiment, since the head of the tightening bolt 23 is fixed to the flanges 18A and 18B by welding in advance, the waterproof property is further improved, and the nut 24 may be simply screwed to assemble workability. improves.

3 and 4 are a front view and a partial sectional view of a wall penetrating structure according to another embodiment of the present invention. In this embodiment, a wall penetrating structure is provided in the wall 25 located inside the building, and the first closing body 16 and the second closing body 16 'are fitted on the case 13 of the bus duct 12 in the same manner as described above. And is fixed with a fixing bolt 20a or the like. The above construction is the same as that of the embodiment shown in FIG.

In this embodiment, the tightening bolts 23 (see FIG. 2) are not used, and the flange portions 18A, 18B, 18A 'and the like are simply brought into contact with the wall surfaces 25a, 25b. Immediately, since the wall 25 is located indoors, a waterproof structure is unnecessary. Therefore, the assembly is further simplified, and the through hole 11 may be provided in a small size.

[0015]

[Effect of device]

 As described above, according to the present invention, the first and second closing members having the two-divided structure are fitted and fixed to the case of the bus duct to close the bus duct through hole of the wall. It is possible to provide a bus duct wall penetrating structure that is simple and has good workability, and that can be assembled while preventing a fire or the like from being assembled.

[Brief description of drawings]

FIG. 1 is a front view of a wall penetrating structure according to the present invention.

FIG. 2 is a sectional view taken along line AA of the same wall penetrating structure.

FIG. 3 is a front view of a wall penetrating structure according to another embodiment of the present invention.

FIG. 4 is a partial cross-sectional view of the same wall penetrating structure.

FIG. 5 is a cross-sectional view of a conventional wall penetration structure.

[Explanation of symbols]

 10, 25 Wall 11 Through hole 12 Bus duct 13 Case 16, 16 'First and second closing body 23 Tightening bolt

Claims (2)

[Scope of utility model registration request] 1. In a wall-penetrating structure of a bus duct provided in a wall having a through-hole penetrating the bus duct, the bus-duct is fitted and fixed on a case of the bus duct to close the through-hole from one wall surface side of the wall. A first blocker having a two-part structure, and a second blocker having a two-part structure that is fitted and fixed on the case of the bus duct to close the through hole from the other wall surface side of the wall. A wall-penetrating structure for bus ducts. 2. The first and second parts that penetrate the through hole.
2. The wall penetrating structure for a bus duct according to claim 1, further comprising a plurality of tightening bolts for pressing the closing body of FIG.