JP7530056B2 - Wiring Sleeve - Google Patents

Description

The present invention relates to a wiring sleeve that is used to introduce wiring from the outside into the inside through a through hole in the outer wall of a building, container, etc.

Conventionally, various wall connection sleeves have been used to be installed in through holes provided in the wall material of an exterior wall for ventilation, piping, wiring, etc. In these applications, the wall connection sleeve connects the inside of the building to external connection equipment, etc., and therefore it is necessary to prevent the inflow of rainwater, etc. from the outdoors to the indoors. Generally, to improve waterproofing, for example, waterproof caulking is applied between the through hole and the wiring or piping inside the through hole.

JP 2015-78741 A

This waterproof caulking is a cumbersome process when installing external connection devices, etc. Therefore, to improve waterproofing, there are products such as the wall penetration sleeve in Patent Document 1, in which waterproof tape or waterproof sheeting is placed between the flange part for mounting to the exterior wall and the flange part for connecting to outdoor connection devices.

In addition to this configuration, the wall-penetrating sleeve in Patent Document 1 is configured to interpose a wedge-shaped spacer between the outer wall and the flange portion, tilting the sleeve itself and making it easier for water inside the sleeve to flow in one direction. However, because a process is required to interpose the wedge-shaped spacer between the outer wall and the flange portion, this configuration can also be a cumbersome process when installing external connection devices, etc.

The present invention aims to provide a wiring sleeve that eliminates the need for the troublesome conventional processes described above, improves waterproofing, and allows wiring to be introduced from the outside into the interior through a through hole in the exterior wall.

After much investigation, the inventors have found that the above object can be achieved by the present invention.

That is, the wiring sleeve according to the present invention is
A wiring sleeve attached to an outer surface of an outer wall so as to cover a periphery of a through hole for wiring provided in the outer wall,
a sleeve body having a through hole through which the wiring passes from one side to the other side, and a sloped surface is formed at a lower portion of the through hole so as to descend from the one side to the other side;
A waterproof wall is provided on a portion of the inclined surface near the one side, the waterproof wall protruding inward in a cross section of the through hole,
A drain hole is provided in a portion of the inclined surface closer to the other side, for draining water from within the through hole to the outside of the through hole.

According to this configuration, an inclined surface descending from the one side to the other side is formed at the bottom of the through hole in the sleeve body, the waterproof wall is provided in the portion of the inclined surface closer to the one side, and the drain hole is provided in the portion of the inclined surface closer to the other side. Therefore, when water infiltrates into the through hole, the inclined surface allows the water to flow from the inside to the outside, and the waterproof wall prevents the water inside the through hole from flowing toward the wiring through hole in the outer wall. In addition, the drain hole allows the water inside the through hole, which has flowed from the inside to the outside by the inclined surface, to be drained to the outside of the wiring sleeve. Therefore, it is possible to provide a wiring sleeve that does not require the conventional troublesome process, improves waterproofing, and introduces wiring from the outside into the inside through the through hole in the outer wall.

In the above configuration, the waterproof wall may be located at the end of the one side of the inclined surface. This provides a waterproof wall at the highest part of the inclined surface (or the part farthest from the drainage hole), reducing the possibility of water inside the through hole overflowing the waterproof wall.

In the above configuration, the drainage hole may be located at the end of the other side of the inclined surface. This allows the drainage hole to be provided at the lowest part of the inclined surface, reducing the amount of water remaining inside the hole without being drained.

In the above configuration, a first base may be provided at the end of the one side or the other side of the sleeve body to be attached to the outer wall, and a first seal member that seals between the one side or the other side of the first base may be attached to the one side or the other side of the first base. This can improve the waterproofing between the outer wall and the first seal member. In this case, a drainage groove that drains water downward may be formed in the lower part of the first seal member. This can prevent water inside the above-mentioned through hole from flowing toward the wiring through hole in the outer wall in the unlikely event that the water exceeds the waterproof wall that is located near the one side.

In the above configuration, a second base connected to another connection device may be provided at the end of the other side or the one side of the sleeve body, and a second seal member that seals between the other connection device and the second connection device may be attached to the other side or the one side of the second base. This can improve the waterproofing between the other connection device and the second seal member. Note that when both the first base and the second base are provided, one of the two is provided on the one side, and the remaining of the two is provided on the opposite other side.

The wiring sleeve of the present invention eliminates the need for the cumbersome process used in the past, improves waterproofing, and allows wiring to be introduced from the outside through holes in the exterior wall.

1 is a vertical cross-sectional view showing an example of connecting a through hole in an outer wall to an external connection device using a wiring sleeve according to an embodiment of the present invention. FIG. 13 is a diagram showing an upper wiring hole and a lower wiring hole of the through hole in the outer wall. FIG. FIG. 2 is a front perspective view of the wiring sleeve. FIG. 2 is a front perspective view showing a vertical cross section of the wiring sleeve. FIG. 2 is a rear perspective view of the wiring sleeve. FIG. 2 is a rear perspective view showing a vertical cross section of the wiring sleeve.

The following describes an embodiment of the present invention with reference to the drawings. Note that the same reference numerals in each drawing indicate the same or equivalent parts, and unless there is a special explanation for modifications, etc., the explanation will be omitted as appropriate.

1 shows an overall cross-sectional view of an example of connecting a through hole in an exterior wall (or structural wall) to an external connection device using a wiring sleeve according to one embodiment of the present invention. In FIG. 1, the exterior wall 300 is the exterior wall of a building, container, etc. (hereinafter referred to as a building, etc.), and the external connection device can be, for example, a power conditioner (hereinafter simply referred to as a power conditioner) 200 attached to the exterior (exterior surface) of the exterior wall 300. The exterior surface of the exterior wall 300 may be made of a metal plate or the like having a thickness of 1.6 mm, at least around the through hole. The power conditioner 200 is often installed outside the building, etc., to avoid the influence of noise and temperature rise caused by the installation space and its own operation on people inside the building, etc. In addition to being attached to the exterior surface of the exterior wall as described above, the power conditioner 200 may also be installed on an installation surface such as outdoor soil.

The wiring sleeve 100 is attached to the outer surface of the exterior wall 300 so as to cover the periphery of the wiring through hole 310 provided in the exterior wall 300, and in this embodiment, it is present between the power conditioner back panel 210 and the exterior wall 300 within the housing of the power conditioner 200 so as to cover the periphery of another wiring through hole (not shown) provided in the power conditioner back panel 210. The through hole 310 in FIG. 1 penetrates the exterior wall 300 to communicate the inside and outside of a building, etc. It consists of an upper wiring hole 312 and a lower wiring hole 314 through which the wiring 500 in FIG. 2 passes. The wiring sleeve 100 is attached to the four screw holes 320 of the exterior wall 300 by outdoor work using mounting screws SR, which are fastening members such as four tapping screws that penetrate the screw holes 196 described below. As long as the wiring 500 is pulled out to the outdoors from the upper wiring hole 312 and the lower wiring hole 314, installation of the wiring sleeve 100 can be done only outdoors.

3, the wiring sleeve 100 is cylindrical and includes a resin sleeve body 150 having a through hole 152 through which the wiring 500 in FIG. 2 passes, for example, from one side, which is the inside, to the other side, which is the outside. In this embodiment, an inner base 198 is provided at the inner end of the sleeve body 150 as a first base for attaching the wiring sleeve 100 to the outer wall 300. The first base may also be provided at the outer end of the sleeve body 150. The inner base 198 is made of a hollow, approximately rounded rectangular thin plate that is approximately perpendicular to the longitudinal direction of the sleeve body 150, and a first seal member 192 (hereinafter, simply referred to as packing 192) that is a packing of a sponge or elastic body that seals between the outer wall 300 and the inner base 198 can be attached to the inside of the inner base 198. In this embodiment, the outer end of the sleeve body 150 is provided with an outer base 114 (FIG. 5) as a second base that connects the wiring sleeve 100 to the inverter 200 (more specifically, the inverter back plate 210). That is, the outer base 114 is provided at the end of the sleeve body 150 opposite to the inner base 198. The second base may be provided at the inner end of the sleeve body 150. The outer base 114 is a hollow, approximately oval flange that is approximately perpendicular to the longitudinal direction of the sleeve body 150, and a second seal member 112 (hereinafter, simply referred to as packing 112) that is a packing of an elastic body such as sponge or rubber that seals between the wiring sleeve 100 and the inverter 200 can be attached to the outside of the outer base 114 (FIG. 3). The wiring sleeve 100 has four screw holes 196 through which the mounting screws SR pass. When viewed in the longitudinal direction of the sleeve body 150, the packing 112 has a shape similar to the hollow, approximately oval shape of the outer base 114. When viewed in the longitudinal direction of the sleeve body 150, the packing 192 has a shape similar to the hollow, approximately rounded rectangular shape of the inner base 198. Note that the packing 192 does not extend to the areas corresponding to the four screw holes 196 and the drainage groove 194 (Figure 5).

4, a sloping surface 154 descending from the inside to the outside is formed at the bottom of the through hole 152. This sloping surface 154 allows water to flow from the inside to the outside when water enters the through hole 152. A waterproof wall 170, for example a pleated wall, protruding toward the inside of the cross section of the through hole 152 is provided at the inner part of the sloping surface 154. This waterproof wall 170 can prevent water inside the through hole 152 from flowing toward the wiring through hole 310 (FIGS. 1 and 2) of the outer wall. More preferably, the waterproof wall 170 is located at the inner end 190 of the sloping surface 154. Also, a water drain hole 130 is provided at the outer part of the sloping surface 154 to drain water inside the through hole 152 to the outside of the through hole 152. This water drain hole 130 allows water inside the through hole 152, which flows from the inside to the outside by the sloping surface 154, to be drained to the outside of the wiring sleeve 100. More preferably, the drain hole 130 is located at the outer end 110 of the inclined surface 154. The inclined surface 154 may have, for example, one area where the inclination is steep near the drain hole 130, or the inclination may change so that it gradually becomes steeper toward the drain hole 130. Furthermore, a groove may be formed near the drain hole 130 to guide water toward the drain hole 130. With this structure, the inclined surface 154 can smoothly guide the water inside the through hole 152 that flows from the inside to the outside to the drain hole 130 and drain it.

As shown in FIG. 6, the bottom of the packing 192 is formed with a drainage groove 194 that drains water downward. If the water inside the through hole 152 should overflow the waterproof wall 170, the drainage groove 194 can prevent the water from flowing toward the wiring through hole 310 (FIGS. 1 and 2) in the outer wall.

As described above, the wiring sleeve of this embodiment eliminates the need for the cumbersome process used in the past, improves waterproofing, and allows wiring from the outside to be introduced into the interior through holes in the exterior wall. In addition, the wiring sleeve of this embodiment can solve design issues and improve the appearance.

The present invention is not limited to the above-described embodiments, and various additions, modifications, and deletions are possible without departing from the spirit of the present invention. Therefore, such additions, modifications, and deletions are also included within the scope of the present invention.

100 Wiring sleeve 112 Packing (second seal member)
114 Outer base (second base)
130 Drain hole 150 Sleeve body 152 Through hole 154 Inclined surface 170 Waterproof wall 192 Packing (first seal member)
194 Drain groove 198 Inner base (first base)
200 Power conditioner (external connection device)
300 Outer wall 310 Through hole

Claims (6)

A wiring sleeve attached to an outer surface of an outer wall so as to cover a periphery of a through hole for wiring provided in the outer wall,
a sleeve body having a through hole through which the wiring passes from one side to the other side, and a sloped surface is formed at a lower portion of the through hole so as to descend from the one side to the other side;
a waterproof wall is provided at a portion of the inclined surface near the one side, the waterproof wall protruding toward an inward direction in a cross section of the through hole and formed integrally with the sleeve body using the same material ;
A drain hole is provided in a portion of the inclined surface near the other side to drain water from the through hole to the outside of the through hole.
Sleeve for wiring. The wiring sleeve according to claim 1,
The waterproof wall is located at the end of the one side of the inclined surface.
Sleeve for wiring. The wiring sleeve according to claim 1 or 2,
The drain hole is located at the other end of the inclined surface.
Sleeve for wiring. The wiring sleeve according to any one of claims 1 to 3,
a first base is provided at an end of the one side or the other side of the sleeve body to be attached to the outer wall, and a first seal member is attached to the one side or the other side of the first base to seal between the one side and the outer wall;
Sleeve for wiring. A wiring sleeve attached to an outer surface of an outer wall so as to cover a periphery of a through hole for wiring provided in the outer wall,
a sleeve body having a through hole through which the wiring passes from one side to the other side, and a sloped surface is formed at a lower portion of the through hole so as to descend from the one side to the other side;
A waterproof wall is provided on a portion of the inclined surface near the one side, the waterproof wall protruding inward in a cross section of the through hole,
A drain hole is provided in a portion of the inclined surface near the other side to drain water in the through hole to the outside of the through hole,
a first base is provided at an end of the one side or the other side of the sleeve body to be attached to the outer wall, and a first seal member is attached to the one side or the other side of the first base to seal between the one side and the outer wall,
A drain groove for draining water downward is formed in the lower part of the first seal member.
Sleeve for wiring. A wiring sleeve attached to an outer surface of an outer wall so as to cover a periphery of a through hole for wiring provided in the outer wall,
a sleeve body having a through hole through which the wiring passes from one side to the other side, and a sloped surface is formed at a lower portion of the through hole so as to descend from the one side to the other side;
A waterproof wall is provided on a portion of the inclined surface near the one side, the waterproof wall protruding inward in a cross section of the through hole,
A drain hole is provided in a portion of the inclined surface near the other side to drain water in the through hole to the outside of the through hole,
a second base connected to another connection device is provided at an end of the other side or the one side of the sleeve body, and a second seal member is attached to the other side or the one side of the second base to seal between the second base and the other connection device;
Sleeve for wiring.

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