JPH086949Y2 - Underfloor inspection port - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underfloor inspection port that serves as an entrance / exit to an underfloor space.

[0002]

2. Description of the Related Art Conventionally, an underfloor inspection port, which serves as an entrance and exit into a space for storing piping equipment formed under the floor, has a lid body placed in an opening formed on the floor so as to be substantially horizontal to the floor. It was to be placed.

As the waterproof treatment from the underfloor inspection port to the underfloor inspection port, a waterproof layer corresponding to the thickness of the lid is formed around the underfloor inspection port.

[0004]

However, in the above-mentioned conventional underfloor inspection port, in a place such as a bathroom or a pool where water is constantly exposed, the underfloor inspection port is not sufficiently waterproofed. Water leaks to.

In particular, when a bathroom, pool or the like is provided on the upper floor of the building, there is a problem that water may leak from the inspection port downstairs. The present invention has been made in view of the above matters, and an object thereof is to provide an underfloor inspection port that reliably prevents water leakage from the inspection port to the underfloor.

[0006]

In an inspection port in which a lid 1 is placed in an opening 2 formed in a floor 5 and used as an opening / closing port, the outer periphery of the opening 2 is used for placing the lid 1. The pedestal 3 is provided above the floor 5, and the pedestal 3 has an elastic body 4 on its inner peripheral portion.
A skirt-shaped collar 12 is formed on the outer periphery of the pedestal 3 so as to contact the pedestal 3, and a waterproof layer 10 is formed on the surface side of the collar 12 from the upper end of the pedestal 3 to the floor 5. It was an underfloor inspection port characterized by having a waterproof facility of 2.

The waterproof layer 10 was formed over a wide area around the opening 2 as a laminated body of asphalt material.

[0008]

When the lid 1 is placed on the pedestal 3, the elastic body 4 seals between the lid 1 and the pedestal 3.

From the upper end of the pedestal 3 to the floor 5,
Due to the waterproof layer 10 formed on the surface side of the collar 12, the water on the floor 5 does not reach the upper end of the pedestal 3 and does not flow into the inside of the pedestal 3.

As described above, the water on the floor 5 is very unlikely to reach the upper surface of the lid 1, and even if the upper surface of the lid 1 is splashed with water, the elastic body 4 prevents the water from opening. No water leaks into 2.

Further, the waterproof layer 10 is provided with the collar 12 to open the opening 2.
Since it is formed over a wide area around, the leakage of water from around the opening 2 is surely prevented.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a top view of the underfloor inspection port of the present embodiment, which is partially sectioned with the waterproof layer removed, FIG. 2 is a side view of the underfloor inspection port which is partially sectioned with the waterproof layer removed, and FIG. FIG. 4 is a sectional view of the handle portion, and FIG. 4 is a sectional view showing a state in which an underfloor inspection port is installed.

A pedestal 3 having an L-shaped cross section is located above the outer periphery of the substantially square opening 2 formed on the floor 5 so as to surround the opening 2 as shown in FIG. The opening 2 communicates with a storage space such as a piping facility (not shown) formed under the floor.

An elastic body 4 made of rubber is provided as a packing between the pedestal 3 and the lid 1 placed on the pedestal 3 on the inner peripheral portion of the pedestal 3. Above the inner circumference of the pedestal 3,
A stop plate 7 is provided as a frame body on the side of the opening 2 of the waterproof layer 10 to be described later, and this stop plate 7 serves as an upper end of the stop plate 7 when the lid body 1 is placed on the pedestal 3. The lid 1 is supported by the support 8 so that the upper surface of the lid 1 is in a horizontal position.

Then, the inner end side of a skirt 12 having a quadrangular and skirt shape which is fitted to the shape of the pedestal 3 is in contact with the upper end of the outer periphery of the pedestal 3, and the outer end side of the rim 12 has two portions on each side. It is welded to the upper end of the anchor 13 via the support 14. The lower end of the anchor 13 is buried up to the inside of the floor 5 to stabilize the entire inspection port.

That is, the stop plate 7, the pedestal 3, and the collar 12 are positioned so as to surround the opening 2 in order from the inside of the opening 2 to the outside thereof, and the stop plate 7, the pedestal 3, and the pedestal 3 are connected to each other. The collars 12 are welded and held together.

The lid 1 has a square shape, and two handle portions 20 are formed on the upper surface of the lid 1 near the center.
The handle 20 is provided with a handle 21 inside a box-shaped waterproof tank 22, and is formed so that water does not leak from the handle 20 to the opening 2.

Then, when the lid 1 is opened and closed, the handle 21 is formed so as to be pulled out from the waterproof tank 22 and grasped. First holes 34 for inserting bolts are formed at four corners of the lid body 1, respectively.

Further, the pedestal 3 is formed with four second holes 36 corresponding to the first holes 34 when the lid 1 is placed on the pedestal 3. Then, the first hole 34 and the second hole
The bolt 30 penetrates the hole 36 of the above and is screwed with the nut 33 welded to the back side of the pedestal 3. The lid body 1 is pressed downward by the tightening force of the bolt 30, compresses the elastic body 4, and seals the space between the lid body 1 and the pedestal 3.

A rubber ring 31 is formed above the threaded portion of the bolt 30 to prevent water leakage from the bolt 30 to the opening 2. The bolt 30 may be tightened and fixed by forming a female screw in the second hole 36 of the pedestal 3 and screwing it into the male screw of the bolt 30 without depending on the nut 30.

The space between the pedestal 3 and the collar 12 and the floor 5 is shown in FIG.
As shown in FIG. 2, the mortar 25 is filled and supports the base 3 and the collar 12. The mortar 25 contacts the other end of the waterproof layer 10 and also supports the waterproof layer 10.

An asphalt layer 10, which is a waterproof layer, is formed on the surface side of the brim 12 from the upper end of the pedestal 3 to the floor 5, and the asphalt layer 10 is a laminated body of asphalt (eg, eight-layered laminate). Has become.

The asphalt layer 10 has a collar 1
The other end of the asphalt layer 10 which is formed as an inclined surface extending downward from the upper end of the pedestal 3 toward the outside along the surface of the pedestal 3 is in contact with the floor 5. In this way, the asphalt layer 10 is formed over a wide area around the opening 2.

The upper end of the pedestal 3, which is one end of the asphalt layer 10, contacts the upper outer periphery of the stop plate 7 as shown in FIG. It is designed not to flow into.

As described above, in the underfloor inspection port of this embodiment, the lid 1 is placed higher than the floor 5, and the collar 12
As a result, the asphalt layer 10 was formed, and the area of the waterproof layer around the opening 2 was widened.
In addition to being less likely to come into contact with water, it is possible to block water leakage from the periphery of the opening 2 into the opening 2, so that it is possible to reliably waterproof the underfloor space, and it is possible to eliminate the risk of water leakage downstairs.

Further, since the waterproof layer is formed as the asphalt layer 10 from an asphalt material having watertightness and flexibility, cracks and the like do not occur in the waterproof layer. Further, although the underfloor inspection port of this embodiment has a square shape, it may have a circular shape or another shape.

[0027]

The underfloor inspection port of the present invention can reliably prevent water leakage from the opening of the inspection port to the underfloor.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional top view of an underfloor inspection port according to an embodiment of the present invention with a waterproof layer removed.

FIG. 2 is a side view in which the waterproof layer of the underfloor inspection port of the embodiment is removed and a partial cross section is shown.

FIG. 3 is a sectional view of a pedestal portion and a handle portion according to the embodiment.

FIG. 4 is a sectional view showing a state in which an underfloor inspection port of the embodiment is installed.

[Explanation of symbols]

 1 ... Lid 2 Opening 3 Pedestal 4 Elastic 5 Floor 10 Waterproof layer (asphalt layer) 12 Tsuba

Claims (1)

[Scope of utility model registration request] 1. An inspection port in which a lid (1) is placed on an opening (2) formed on a floor (5) to serve as an opening / closing opening, and a lid (1) is provided on the outer periphery of the opening (2). 1) A pedestal (3) for mounting is provided at a position above the floor (5), and the pedestal (3) has an elastic body (4) in an inner peripheral portion, and a pedestal is provided on an outer periphery of the pedestal (3). Tsuba (1 that contacts with (3)
2) is formed, and a waterproof layer (10) is formed on the surface side of the collar (12) from the upper end of the pedestal (3) to the floor (5) to provide waterproof equipment for the opening (2). An underfloor inspection port characterized by: