JPH0540491U - Underfloor inspection port - Google Patents

Abstract

(57) [Summary] [Purpose] Aiming to provide an underfloor inspection port that reliably prevents water leakage from the inspection port formed on the floor to the underfloor [Constitution] In the opening 2 formed on the floor 5. At the inspection port where the lid 1 is placed and used as an opening / closing port, a pedestal 3 for placing the lid 1 is provided on the outer periphery of the opening 2 above the floor 5, and the pedestal 3 is provided on the inner periphery. It has a rubber elastic body 4, and the pedestal 3
A skirt-shaped brim 12 is formed on the outer periphery of the pedestal 3 in contact with the pedestal 3, and a waterproof layer 10 is formed on the surface side of the brim 12 from the upper end of the pedestal 3 to the floor 5 to waterproof the opening 2. It was used as an underfloor inspection port for equipment. And the waterproof layer 10
Was formed over a wide area around the opening 2 as a laminate of asphalt material.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an underfloor inspection port that serves as an entrance and exit to a space under the floor.

[0002]

[Prior Art]

 Conventionally, the underfloor inspection port, which serves as an entrance and exit into the space for storing piping equipment under the floor, has a lid placed on the opening formed on the floor so that it is almost horizontal to the floor. there were.

As a 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]

[Problems to be solved by the device]

 However, in the above-mentioned conventional underfloor inspection port, water leakage from the underfloor inspection port into the space under the floor occurs because the underfloor inspection port is not sufficiently waterproofed in a place where water is constantly applied, such as a bathroom or a pool.

Then, particularly when a bathroom, a 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 of the present invention is to provide an underfloor inspection port that reliably prevents water leakage from the inspection port to the underfloor.

[0006]

[Means for Solving the Problems]

 In an inspection port in which the lid 1 is placed in the opening 2 formed in the floor 5 and used as an opening / closing port, a pedestal 3 for placing the lid 1 on the outer periphery of the opening 2 is located above the floor 5. This pedestal 3 has an elastic body 4 on the inner peripheral portion thereof, and a scat-shaped collar 12 that contacts the pedestal 3 is formed on the outer periphery of the pedestal 3, and the pedestal 12 is provided on the front surface side of the collar 12. An underfloor inspection port is characterized in that a waterproof layer 10 is formed from the upper end portion of 3 to the floor 5 to provide a waterproof facility for the opening 2.

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

[0008]

[Action]

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

The water on the floor 5 does not reach the upper end of the pedestal 3 due to the waterproof layer 10 formed on the surface side of the brim 12 from the upper end of the pedestal 3 to the floor 5, and It does not flow inward.

As described above, it is very difficult for water on the floor 5 to reach the upper surface of the lid 1, and even if water is applied to the upper surface of the lid 1, the water is blocked by the elastic body 4 and the opening is opened. No water leaks into 2.

Further, since the waterproof layer 10 is formed over the wide area around the opening 2 by the brim 12, water leakage from around the opening 2 is surely prevented.

[0012]

【Example】

 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, in which a waterproof layer is removed to partially cross-section, FIG. 2 is a side view of the underfloor inspection port in which the waterproof layer is partially removed, and FIG. 3 is a pedestal portion. 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 opening 2 having a substantially square shape formed on the floor 5, and surrounds 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. A stop plate 7 is provided on the upper side of the inner periphery of the pedestal 3 as a frame body to the side of the opening 2 of the waterproof layer 10 described later. The stop plate 7 mounts the lid body 1 on the pedestal 3. In this case, the upper end of the stop plate 7 and the upper surface of the lid 1 are supported by the support 8 so as to be in a horizontal position.

The upper end of the outer periphery of the pedestal 3 is brought into contact with the inner end side of a skirt-shaped quadrangular skirt 12 conforming to the shape 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 bearing 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 located so as to surround the opening 2 in order from the inside to the outside of the opening 2, and the stop plate 7, the pedestal 3, and the pedestal 3 are connected to each other. The collars 12 are welded to each other 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 toward 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.

In addition, 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 bolt 30 penetrates the first hole 34 and the second hole 36, and is screwed with the nut 33 welded to the back side of the pedestal 3. The lid 1 is pressed downward by the tightening force of the bolt 30 to compress the elastic body 4 and seal the space between the lid 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.

As shown in FIG. 4, a mortar 25 is filled between the pedestal 3 and the brim 12 and the floor 5 to support the pedestal 3 and the brim 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 portion of the pedestal 3 to the floor 5, and the asphalt layer 10 is a laminated body of asphalt (for example, an eight-layer laminate). ).

The asphalt layer 10 is formed as a sloped surface extending downward from the upper end of the pedestal 3 along the surface of the collar 12, and the other end of the expanded asphalt layer 10 forms the floor 5. Touching. In this way, the asphalt layer 10 is formed over the wide area around the opening 2.

Further, as shown in FIG. 4, the upper end portion of the pedestal 3, which is one end of the asphalt layer 10, abuts against the upper outer periphery of the stop plate 7, and the asphalt material is inside the pedestal 3 at the stage of forming the asphalt layer 10. It is designed not to flow into.

As described above, in the underfloor inspection port of this embodiment, the asphalt layer 10 is formed by the brim 12 with the lid 1 placed higher than the floor 5, and the waterproof layer around the opening 2 is formed. Since a large area can be formed, water on the floor 5 is unlikely to splash on the lid 1, and water leakage from around the opening 2 to the inside of the opening 2 can be blocked, so that reliable waterproofing of the space under the floor can be achieved. This makes it 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 or the like do not occur in the waterproof layer. Although the underfloor inspection port of this embodiment has a square shape, it may have a circular shape or another shape.

[0027]

[Effect of the device]

 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 top view of an underfloor inspection port which is an embodiment of the present invention with a waterproof layer removed to partially cross-section;

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 port, 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: