JPH0354338Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Field of industrial application) This invention is designed to discharge moisture generated from within the concrete slab after waterproofing the surface of the concrete slab on the roof of a building, etc. This invention relates to an exhaust device used for exhausting pipes, etc.

(Prior art) Conventionally, in any of the above cases, the exhaust system is
The exhaust pipe is connected to an exhaust passage provided between the waterproof sheet and the concrete slab, and an exhaust passage consisting of an exhaust branch pipe extending from a drainage pipe installed in the building and penetrating the concrete slab, and from the surface of the concrete slab. In order to protect the outer peripheral surface of the exhaust pipe from rainwater, the outer peripheral surface of the exhaust pipe is covered with a waterproof sheet in a cylindrical shape, and this cylindrical waterproof sheet is applied to the outer peripheral surface of the exhaust pipe in a liquid-tight manner. In order to securely bind and fix the waterproof sheet, at present, a metal wire is wound around the outer circumferential surface of the cylindrical waterproof sheet in a coil shape as a tightening tool, and the waterproof sheet is tightened and fixed.

(Problems to be solved by the invention) However, in the above conventional exhaust system, the exhaust pipe is exposed to the outside air, and is not exposed to direct sunlight, rainwater, or foreign objects. This has disadvantages such as premature deterioration of wires due to corrosion or adhesion, and corrosion of the wires is also likely to occur.

(Means for solving the problem) The present invention solves the above-mentioned disadvantages of the conventional exhaust system and provides a long-life exhaust system that protrudes above one surface of a concrete slab on the roof of a building, etc. The exhaust pipe 5 is closed and communicates with the exhaust passage 3.
A waterproof sheet 15 is installed on the outer peripheral surface of the exhaust pipe 5.
is covered in a cylindrical shape, and the cylindrical waterproof sheet 15 is
In an exhaust system that is crimped and fixed to the exhaust pipe 5 using a fastener 16, a plate-shaped spacer 1 having a larger diameter than the exhaust pipe 5 is provided on the upper surface of the exhaust pipe 5.
7 is fixedly installed, the inner circumferential surface is in contact with the outer circumferential edge of the spacer 17, and a shade body 18 is provided so as to cover the upper surface and outer circumferential side of the exhaust pipe 5, and the shade body 18 is disposed on the outer circumferential edge of the spacer 17. The lower ends of the plurality of mounting legs 19 each extending downward and the lower end of the shade body 18 are connected to each other by a connecting member 20, and the exhaust pipe 5
A downward exhaust passage space 21 communicating with the outside air is provided between the cap body 18 and the shade body 18 at the lower surface thereof.

(Example) Next, an example of the present invention will be described with reference to the accompanying drawings.

FIGS. 1 and 2 show an example of the implementation of the present invention, which is applied in waterproofing construction. That is, in the drawings, reference numeral 1 indicates a concrete slab on the roof of a building, on which an insulating and waterproof construction layer 2 is applied. That is, on the upper surface of the concrete slab 1, an insulating waterproof sheet 2a whose lower surface has countless uneven stripes or numerous dotted protrusions is pasted, and between the slab 1 surface and the insulating waterproof sheet 2a, , forming an exhaust passage 3 consisting of a large number of concave surfaces between the uneven stripes or dotted protrusions, and laminating and pasting at least one flat waterproof sheet 2b on the upper surface thereof, and a decorative waterproof sheet with sand on the top layer. The waterproof construction layer 2 is completed by laminating and pasting 2c. As a waterproof sheet,
These are common types such as asphalt roofing, rubber asphalt roofing, and synthetic resin roofing.

After such waterproofing is carried out, the moisture within the concrete slab 1 rises due to solar heat, etc., and is exhausted from the upper surface into the exhaust passage 3 as steam, so that this humid air is constantly exhausted to the outside. During waterproof construction, a perforation 4 of a predetermined size is made at a predetermined location on the surface of the waterproof construction layer 2, penetrating through the waterproof construction layer 2, and an internal cylindrical shape is formed on the upper surface of the perforation 4. The exhaust pipe 5 is provided to protrude upward by aligning the spaces 6, and is communicated with the exhaust passage 3 of the exhaust pipe 5,
This allows the humid air in the exhaust passage 3 to be exhausted to the outside via the exhaust pipe 5.

The exhaust pipe 5 usually has a wide annular base plate 5a on the outer periphery of its lower end, which is inserted into the perforation 4 of the waterproof construction layer 2.
The exhaust pipe 5 is installed on the upper surface of the outer periphery of the annular base plate 5a, and is screwed into the hole of the concrete slab using a fixing member such as a screw that passes through three screw holes 5b equally spaced on the circumference of the annular base plate 5a. to be fixed. The exhaust tube 5 is preferably cylindrical, and has an exhaust hole 7 at the center of its top surface. Preferably, the exhaust hole 7 is provided with a valved cap. That is, for this purpose, a small hollow cylindrical body 8 is formed with the center part of the top surface bulging upward, an exhaust hole 7 is provided at the center of the top surface, and an elastic material such as rubber is provided on the upper surface of the exhaust hole 7. Place the valve 9,
A cylindrical valve cap 11 having a plurality of small exhaust holes 10 on the circumferential side is provided on the outside of the small cylindrical body 8, and the center lower end of the downwardly bent conical top surface of the cylindrical valve cap 11 The elastic valve 9 was pressed lightly so that the exhaust hole 7 was normally closed at the center of the elastic valve 9.

The exhaust pipe 5 together with the annular substrate 5a and the small hollow cylindrical body 8 may be made of either synthetic resin or metal, but is most preferably made of stainless steel. The cylindrical valve cap 11
It is also best to be made of stainless steel.
The cylindrical valve cap 11 may be fixed to the outer periphery of the small hollow cylindrical body 8 by welding or mechanically locking the hollow cylindrical body 8. The cylindrical valve cap 11 is simply fitted onto the body 8, and then a cylindrical support cap 12 with a larger diameter is attached to the cylindrical valve cap 11 on its top surface.
The cylindrical valve cap 11 is in contact with the top surface of the valve cap 11.
horizontal brim portion 12a on the outer periphery of the lower end thereof.
The cylindrical valve cap 11 may be fixed to the small hollow cylindrical body 8 by fixing it to the annular horizontal top wall surface 5c of the exhaust pipe 5 with fixing means 13 such as screws or welding. good.

An exhaust hole 14 is provided on the circumferential side of the cylindrical support cap 12. Thus, the exhaust pipe 5 and the elastic valve 9
The gas passing through can be discharged from the exhaust hole 14.

In order to waterproof and protect the outer peripheral surface of the exhaust pipe 5, at least one layer, usually two or more layers, of a cylindrical waterproof sheet 15 are provided to surround and fix the outer peripheral surface of the exhaust pipe 5. In this case, the lower sheet of the waterproof sheet 15 includes the annular horizontal top wall surface 5c of the exhaust pipe 5, the cylindrical support cap 12, and the horizontal brim portion 12, as shown in the figure.
from the upper surface of the annular substrate 5 through the outer periphery of the exhaust pipe 5.
The waterproof sheet 2b may be coated and pasted over the outer periphery of the waterproof sheet 2b.

Waterproof sheet 1 closely covering the outer periphery of the exhaust pipe 5
A tightening band 16 for fixing 5 to the exhaust pipe 5
Although a conventional metal wire may be wound around the cylindrical waterproof material, it is preferable to wrap at least one stainless steel band 16 as shown in the figure, which can be tightened and untightened with any diameter. Wrap the band 1 around the outer peripheral surface of the sheet 15.
Select a predetermined location of a large number of locking slots 16a provided at the end of the cylinder 6, and tighten the tightening screw 16b having a threaded protrusion on the circumferential surface so that the tightening length can be freely adjusted. The waterproof sheet 15 is fixed to the exhaust pipe 5, and then the cylindrical waterproof sheet 1 is fixed as necessary.
When replacing the band 5, the band 16 can be unraveled.

In the exhaust system having the above structure, the cylindrical valve cap 11 is exposed to wind and rain, impairing its proper operation, and rainwater may enter the exhaust pipe 5 through this, and the cylindrical waterproof sheet 15 may be exposed to sunlight or rainwater. Exposure accelerates aging.

In the present invention, as described below, the exhaust system is equipped with a means that can extremely easily prevent such inconvenience. Then, a plate-shaped spacer 17 having a larger diameter than the exhaust pipe 5 is fixedly installed, and a shade is placed so that the inner peripheral surface is in contact with the outer peripheral edge of the spacer 17 and covers the upper surface and the outer peripheral side of the exhaust pipe 5. The lower ends of the plurality of mounting legs 19 arranged on the outer peripheral edge of the spacer 17 and extending downward, respectively, and the lower end of the shade body 18 are connected to each other by a connecting member 20. A downward exhaust passage space 21 is provided between the exhaust pipe 5 and the shade body 18, and the lower surface communicates with the outside air.

More specifically, the central part of the plate-shaped spacer 17 is overlapped with the flat top wall of the cylindrical support cap 12 at the upper part of the exhaust pipe 5, and the overlapping part is fixed with a fixing means 22 such as screws or welding. , the plate spacer 17
is provided so as to protrude from the outer periphery to a diameter larger than that of the exhaust pipe 5, and in the drawing, a dome-shaped shade body 18 is crowned from above, and its inner circumferential surface is brought into contact with the outer circumferential edge of the plate-shaped spacer 17. . The depth of the shade body 18 is such that in this abutting state, the lower end of its peripheral wall is at least approximately one-half to two-thirds of the height of the cylindrical covering waterproof sheet 15 of the exhaust pipe 5. Generally, it is designed in advance to have a circumferential wall deep enough to cover the entire exhaust pipe. One that covers the outer periphery of the cylinder 5 is most preferable.

Thus, by the interposition of this plate-shaped spacer 17, a downward exhaust passage space 21 is formed in the shade body 18 and between it and the exhaust pipe 5, and the lower surface communicates with the outside air.

The means for holding and fixing the shade body 18 by holding the exhaust passage space 21 is a plurality of attachments, three in the illustrated example, arranged at predetermined intervals on the outer peripheral edge of the plate spacer 17. The legs 19 are fixed at their upper ends with fixing means 23 such as screws, and extend downward from the plate-shaped spacer 17, preferably having an inclined structure that extends outward as they reach the bottom. The threaded holes 24 are aligned with the through holes 25, such as circular holes, which are bored in the outer peripheral wall of the lower end of the shade body 18 at the same intervals as the mounting legs 19, 19, 19, and the connecting members are inserted into the holes 25. 20. For example, by bolts and nuts, it is detachably attached, and thus,
The shade body 18 is attached to the exhaust pipe 5 leaving a predetermined space 21 therebetween.

The plate-shaped spacer 17 is formed by pressure molding or the like to have a vertical wall 17a extending vertically downward on its outer periphery, and the upper end of each mounting leg 19 is attached to this. is constructed as a spacer member with high strength.

Thus, according to the present invention, since the plate spacer 17 is provided with a plurality of mounting legs 19 for attaching the shade body 18, it is possible to always attach the shade body 18 at a predetermined corresponding attachment position. Because you can
The applicant first filed Japanese Patent Application No. 62-39046
206554), the thickness of the cylindrical waterproof sheet and the number of sheet layers are The diameter of the wide band-like body changes due to such factors, and the position of the mounting legs shifts in the circumferential direction, making it cumbersome and difficult to attach to the hat body. This provides advantages such as omission of parts and ease of assembly.

It goes without saying that the shape of the hat body 18 is not limited to that shown in the drawings, and its material may also be synthetic resin,
Corrosion-resistant and tough materials such as stainless steel are preferable.

(Effect of the invention) Thus, in the exhaust system of the present invention, gas containing moisture from the base is removed from the exhaust pipe 5 through the pipe formed between the exhaust pipe 5 and the shade body 18 through the interposition of the plate-shaped spacer 17 on the outer periphery of the exhaust pipe 5. It enters the shaped exhaust passage space 21 and heads downward to the outside of the shade body 18 from its lower end opening,
That is, while the exhaust system operates to be exhausted to the outside air, the main body of the internal exhaust system is isolated and protected from wind, rain, sunlight, dust, etc. by the shade body 18, so that the initial good condition can be maintained for a long period of use. Since the mounting legs 19 are provided on the plate-shaped spacer 17 fixed to the upper surface of the exhaust pipe 5, the cap body 18 can be easily attached to the plate spacer 17.
It has advantages such as easy assembly.

[Brief explanation of drawings]

FIG. 1 shows a cutaway side view of an example of the exhaust system of the present invention, and FIG. 2 shows an exploded perspective view of the exhaust system. 1... Concrete slab, 2... Waterproof construction layer, 3... Exhaust passage, 4... Perforation, 5... Exhaust pipe, 6... Internal cylindrical space, 7... Exhaust hole, 15...
... Tubular waterproof sheet, 16 ... Band, 17 ... Plate spacer, 18 ... Shade body, 19 ... Mounting leg, 21 ... Exhaust passage space.

Claims (1)

[Scope of utility model registration request] An exhaust pipe 5 is installed to protrude above a surface of a concrete slab such as the roof of a building and communicate with the exhaust passage 3, and a waterproof sheet 15 is wrapped around the outer peripheral surface of the exhaust pipe 5 in a cylindrical shape. waterproof sheet 1
5 is crimped onto the exhaust pipe 5 using a fastener 16 and fixed by tightening, in which a plate-shaped spacer 17 having a larger diameter than the exhaust pipe 5 is fixed on the upper surface of the exhaust pipe 5, A cap body 18 is provided so that the inner circumferential surface is in contact with the outer circumferential edge of the spacer 17 and covers the upper surface and outer circumferential side of the exhaust pipe 5. The cap body 18 is disposed on the outer circumferential edge of the spacer 17 and extends downward. The lower ends of the plurality of mounting legs 19 and the shade body 1
8 are connected to each other by a connecting member 20, and a downward exhaust passage space 21 is provided between the exhaust pipe 5 and the shade body 18 and communicated with the outside air at the lower surface.