JPH08105196A - Inspection port device - Google Patents

Abstract

PURPOSE: To provide excellent heat insulation ability and airtight ability by a method wherein a fit-in body arranged at the back of the base plate of a heat insulation block and formed of a heat insulation material is fitted in a fit-in outer cylinder formed of the heat insulation material of a fixed frame, and a cover body is fitted in the fixing frame. CONSTITUTION: A fixing frame 3 is inserted in an opening 2 of a ceiling plate 1, an internally protruding inner flange 6 is arranged on the back side of the fixing frame 3, and a square cylindrical fit-in outer cylinder 9 formed of foamed styrol is arrange at the back part of the inner flange 6. A base plate 13 having an peripheral edge sized enough to lap with the inner flange 6 of the fixing frame 3 and a heat insulating block 12 consisting of a fit-in body 14 of foamed styrol joined with a position on the base plate 13 are molded. The fit-in body 14 of the heat insulation block 12 is inserted in the hole of the fit-in outer cylinder 9 and adhered thereto and a cover body 17 consisting of a cover frame 18 and a panel 19 is fitted in the fixing frame 3. This constitution prevents formation of dew and the occurrence of rust and improves durability.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inspection port device installed on a ceiling or floor of a house, and more particularly to an inspection port device having high heat insulation and high airtightness.

[0002]

2. Description of the Related Art Generally, in a house, power lines, communication lines, gas pipes, water pipes, air-conditioning ducts, etc. are wired and piped under the ceiling and under the floor. The floor is equipped with an access door device.

On the other hand, cooling and heating are performed in the room, and in order to improve the efficiency of the cooling and heating, the inspection port device is required to have high heat insulation and airtightness. Furthermore, when the inspection port device is mounted on the ceiling or floor, the simplicity of the construction is desired.

Conventionally, this kind of ceiling inspection port device,
This will be described with reference to FIGS. 6 and 7. In the figure, reference numeral 24 is a ceiling plate having an opening 25. To install the inspection port device, a rectangular frame-shaped fixing frame 26 made of an aluminum material or the like is fitted into the opening 25, and this is fixed to the holding base 27 by screws (not shown). A receiving step 28 is formed on the inner side of the fixed frame 26, and the receiving step 28 receives a heat insulating block 31 obtained by filling a glass casing 29 with glass wool 30 as a heat insulating material. A sheet-shaped packing 32 is interposed between the outer circumference of the heat insulating block 31 and the inner circumference of the fixed frame 26 and on the receiving step 28. A lid body 3 is formed by attaching a decorative plate 33, which is in harmony with the ceiling plate 24, to the lid frame 34 in the lower portion of the fixed frame 26.
5 are fitted together, fixed by locking means (not shown), and openable and closable. 36 in the drawing is a blowing material.

This inspection port device is provided with the heat insulating block 31.
The indoor air and the air behind the ceiling are insulated by the packing, and the packing 32 ensures the airtightness between the indoor side and the ceiling behind. Then, at the time of inspection, the lid 35 is opened, and then the heat insulating block 31 is pushed off to allow the inspector to enter the ceiling.

FIG. 8 shows an example of a conventional underfloor inspection port device. In this inspection port device, an opening 38 is formed in the floor plate 37, a fixing frame 39 is fitted into the opening 38, and is fixed with a screw (not shown). This fixed frame 39 also has a receiving step 40 provided inside, and a heat insulating block 43 in which a casing 41 is filled with glass wool 42 is placed and provided on the receiving step 40. A sheet-like packing 44 is provided between the outer circumference of the heat insulating block 43 and the inner circumference of the fixed frame 39 and on the receiving step 40. A lid 47, which is formed by attaching a frame 46 that is in harmony with the floor plate 37 to the lid frame 45, is fitted to the upper part inside the fixed frame 39. Also, on the lower surface of the floor plate 37 and in the opening 3
A heat insulating material 48 is provided around 8. The heat insulating block 43 is provided with a handle 49 for taking out.

In this inspection port device as well, as in the above-described ceiling inspection port device, the heat insulating block 43 insulates and the packing 44 maintains airtightness to improve the efficiency of cooling and heating. At the time of inspection, the lid 47 and the heat insulating block 43 are removed so that the inspector can enter under the floor.

[0008]

In both of the above two inspection port devices, the adhesion between the heat insulating block and the fixed frame is poor,
Further, although the packing is interposed in this, a minute gap is generated and the airtightness is not sufficient. Further, although the heat insulating block provides some heat insulation, it has a small moisture resistance because it is made of a wooden casing and glass wool, and air, moisture, etc. circulate, and from this point also the heat insulation and airtightness were not sufficient. Furthermore, these inspection door devices have many work processes at the construction site, such as mounting the heat insulating material around the opening, mounting the fixed frame, mounting the heat insulating block, and mounting the packing. there were.

The present invention has been made in consideration of the above-mentioned conventional problems, and an object thereof is to provide an inspection port device which has a high heat insulating property, a high airtight property and a good workability. Another object of the present invention is to provide an underfloor inspection port device that is combined with an underfloor storage container to expand its function.

[0010]

In order to achieve the above-mentioned object, the present invention comprises a fixing frame which is mounted on an opening in a ceiling or a floor, and a heat insulating material which is arranged outside the inner flange on the back side of the fixing frame. A mating outer cylinder, a heat insulating block made up of a board and a heat insulating material fitting body integrally provided on its back, and a lid,
An inspection port device is configured in which the fitting body of the heat insulating block is fitted and closely attached to the fitting outer cylinder and fixed, and the lid body is fitted to the fixing frame.

Further, a fixed frame to be installed in the opening of the floor, a fitting outer cylinder made of a heat insulating material arranged below the inner flange on the lower side of the fixed frame, and a flange of the upper opening peripheral edge in the fixed frame. An underfloor storage container with a bottom that is locked on a flange and can be inserted into and removed from the fitting outer cylinder; a heat insulating block made of a heat insulating material that is integrally provided on the board and its back; and a lid body. Is fitted to the upper part of the underfloor storage container, and the lid is fitted to the fixed frame to form an inspection port device.

[0012]

In the above structure, airtightness is maintained between the fitting portion of the heat insulating block and the joining portion of the fitting outer cylinder, and
Large heat insulation can be obtained by the fitting body made of a heat insulating material and the fitting outer cylinder.

For underfloor inspection, a bottomed underfloor storage container is detachably attached to a fitting outer cylinder, and a heat insulation block fitting body is fitted to this to function as an underfloor storage and the underfloor storage container is removed for inspection. Can function as
Moreover, with this configuration, it is possible to obtain airtightness and heat insulation between the inside and the outside of the inspection port.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of an inspection port device according to a first embodiment of the present invention which is provided on a ceiling portion, and FIG. 2 is an exploded perspective view thereof.

In FIGS. 1 and 2, reference numeral 1 denotes a ceiling plate, which forms an opening 2 into which a fixed frame 3 having a rectangular shape and a height to which a lid body described later is fitted is inserted. The side portion of the fixed frame 3 is fixed to the holding base material 5 on the back of the ceiling with screws 4. An inner flange 6 that protrudes inward is formed on the back side of the fixed frame 3, and as shown in FIG. 3, an inner packing of a certain thickness having elasticity is attached to the inner surface of the inner flange 6.
A rib 8 having a height smaller than the packing thickness is provided at the inner end of the inner flange 6.

On the back side of the inner flange 6, there is arranged a square-shaped fitting outer cylinder 9 formed by molding styrofoam, which is a heat insulating material, and the fitting outer cylinder 9 is fixed to a recess formed inside. The seat plate 10 is brought into contact with the seat plate 10 and is screwed to the holding base 5 on the backside of the ceiling with screws 11. The fitting outer cylinder 9 has an inner wall surface that is tapered so that its hole is tapered.

Reference numeral 12 denotes a heat insulating block, which is the fixed frame 3
The base 13 has a size such that the peripheral edge overlaps the inner flange 6 and the base 14 has a rectangular columnar fitting 14 made of expanded polystyrene, which is a heat insulating material.
An outer surface of taper 4 is tapered so as to be tapered, and the outer surface is in close contact with the inner surface of the hole of the fitting outer cylinder 9. In this embodiment, as shown in FIG. 4, the substrate 13 has a three-layer structure of aluminum plates 13a and 13b, both surfaces of which are impermeable materials, and a middle layer of which is a polyethylene layer 13c which is a heat insulating material.
In this heat insulating block 12, the fitting body 14 is fitted into the fitting outer cylinder 9
The outer surface and the inner surface of the hole are brought into close contact with each other and the upper surface of the peripheral edge of the substrate 13 is packed with the inner flange 6 of the fixed frame 3
The substrate stopper 15 provided inside the fixed frame 3 keeps it in contact with. The substrate 1
A handle 16 for taking out the heat insulating block 12 is attached to the inner surface of 3.

Reference numeral 17 is a lid body which is fitted into the fixed frame 3. The lid body 17 is composed of a lid frame 18 and a panel 19 fitted therein. This panel 19 is a ceiling board 1
The ceiling plate 1 is in harmony with the above, and is the same plate as the ceiling plate 1 or is appropriately colored and patterned.

The panel 19 is attached to the flange 21 of the lid frame 18 by a panel stopper 20 provided on the lid frame 18.
Has been suppressed to. Further, the hook 22 provided at one end of the lid 17 is provided at the receiving portion 2 provided at one inner end of the fixed frame 3.
3 is used as a hinge so that it can be opened and closed, and in the closed state, it is locked by a lock member (not shown).

The inspection port device of this embodiment is constructed as described above. First, the insert body 14 made of the heat insulating material of the heat insulating block 12 and having a considerable thickness is fitted into the fitting outer cylinder made of the heat insulating material, In addition, the interior and exterior are airtight at the inspection port and the air is thermally insulated between the interior and exterior. Further, since the substrate 13 has a three-layer structure of the aluminum plates 13a and 13b having a large moisture permeability resistance and the polyethylene layer 13c of the heat insulating material, the moist air carrying heat inside or outside the room is blocked. In addition, the upper surface of the peripheral edge of the substrate 13 has an inner flange 6 of the fixed frame 3.
It is pressed against the packing 7 and effectively shuts off the inside and outside of the room. In this case, since the inner flange 6 is provided with the rib 8, the packing 13 is compressed by the substrate 13 until it hits the rib 8 as shown in FIG. 3B, so that the elastic fatigue of the packing 7 is prevented. it can.

Describing the construction here, the inspection port device of the present embodiment comprises a fixed frame 3, a heat insulating block 12, and a fitting outer cylinder 9 at three points (the lid 17 is procured on site),
That is, since a small number of kits are provided, it is easy to carry out the work at the site, and since installation with screws is sufficient, the work can be done only by the driver, and the work cost can be reduced. Further, the fitting body 14 of the heat insulating block 12 is attached to the fitting outer cylinder 9
The substrate 13 can be automatically positioned because it is fitted to the substrate. Since the fitting body 14 and the fitting outer cylinder 9 are joined by the tapered surface, the dimensional error can be absorbed. Then, if the fitting body 14 is strongly pushed in, the adhesion is improved and the airtightness is improved, and when the fitting body 14 is removed, it is pulled out in the direction in which the hole of the fitting outer cylinder 9 is large. It also works well for work.

In the above embodiment, the fitting outer cylinder 9 and the fitting body 14 are formed of styrofoam, but may be made of another polymer material having a heat insulating property or a foamed material thereof. The substrate 13 is made of aluminum plates 13a and 13b.
And a polyethylene layer 13c have a three-layered structure, but any one of a metal plate, a glass plate, and a synthetic resin plate having high moisture permeability resistance,
Other polymer material layers having a heat insulating property may be used.

Further, although the ceiling inspection port device is used in the first embodiment, as the second embodiment, although not shown, the structure of the first embodiment is turned upside down to form an underfloor inspection port device. In this case, the ceiling board 1 is a floor board. Of course, the receiving portion 23 which is the lid opening / closing hinge of the fixed frame 3 and the hook 22 of the lid 17 are not necessary. The lid 17 is provided with a knob (not shown).

Next, an inspection port device according to a third embodiment of the present invention will be described with reference to FIG. The feature of this embodiment is an underfloor inspection port device, and a configuration in which this underfloor inspection port device is combined with an underfloor storage container.

Then, as shown in FIG. 5, the underfloor storage container 1
00, and the configuration other than the opening / closing hinge mechanism of the lid 17 described above, that is, the hook 22 and the receiving portion 23 are the same as the configuration of the first embodiment.
The description is omitted.

The underfloor storage container 100 is formed as a bottomed container and has a flange 1 projecting outward at the periphery of the upper opening.
I have 01. The outer portion is tapered so as to be in close contact with the tapered inner wall surface of the fitting outer cylinder 9, and the flange 101 is engaged with the packing of the inner flange 6 of the fixed frame 3. ing. The underfloor storage container 100 is made of synthetic resin or metal, but is preferably made of synthetic resin having poor thermal conductivity in terms of heat insulation.

Here, the heat insulating block 12 is composed of a substrate 13 having a size such that the peripheral edge thereof overlaps the flange 101 of the underfloor storage container 100, and a columnar fitting 14 made of expanded polystyrene, which is a heat insulating material, joined to the lower surface of the substrate 13. Insert 1
The outer surface of the taper 4 is tapered so as to be tapered, and the outer surface is in close contact with the upper inner wall of the underfloor storage container 100.

The structure of the lid body 17 fitted to the fixed frame 3 is the same as that of the first embodiment, but in this embodiment, the panel 19 is made of the same material as the floor plate 1'or appropriately colored, and further the lid body 17 is attached. A knob 102 for opening and closing is provided.

The inspection port apparatus of this embodiment is usually equipped with an underfloor storage container 100, and puts the contents in this underfloor storage container 100 to function as a so-called underfloor storage. And the storage 17 is taken in and out by the lid 17 and the heat insulating block 1.
Take 2 up. Of course, the heat insulating and airtight functions of the heat insulating block, the lid plate 13 and the packing 7 are the same as those in the first embodiment.

Next, when performing an underfloor inspection, in addition to the lid 17 and the heat insulating block 12, the underfloor storage container 100 is pulled out upward. By extracting the underfloor storage container 100, it is possible to inspect the underfloor wiring and piping through the hole of the fitting outer cylinder 9.

As described above, the inspection port device of this embodiment has the function of the underfloor storage, and the heat insulation and airtightness inside and outside the room can be effectively maintained.

[0032]

As is clear from the description of the above embodiment,
The inspection port device of the present invention includes a fixed frame mounted on an opening in a ceiling or a floor, a fitting outer cylinder made of a heat insulating material arranged on an inner flange on the back side of the fixed frame, and a substrate and a back part thereof. A heat insulating block made of a heat insulating material insert body and a lid body, and the fit body of the heat insulating block is fitted and closely fixed to a fitting outer cylinder, and the lid body is fitted to a fixing frame. , Airtightness and large heat insulation can be obtained between the joint between the heat insulating block fitting body and the fitting outer cylinder, and the airtightness is improved by making the board's joint structure of the heat insulating block and the board with high moisture permeability resistance high. It is possible to make an inspection port device with high heat insulation and high airtightness, which can greatly contribute to improving the efficiency of cooling and heating in the room, and it is also effective as a measure against dew condensation, preventing mold from occurring, By making it harder for the building materials to rot, It is intended to contribute to the propensity.

Further, it is possible to combine the underfloor storage containers to serve also as an underfloor storage, and in this case also, the function can be expanded while sufficiently maintaining the airtightness and heat insulation between the inside and outside of the room.

[Brief description of drawings]

FIG. 1 is a sectional view of an inspection port device according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of the inspection port device.

FIG. 3 (a) is a cross-sectional view of the heat insulating block substrate and the fixed frame of the same inspection port device before joining, and FIG. 3 (b) is a cross-sectional view of the same substrate and fixed frame after joining.

FIG. 4 is a sectional view of a substrate of the heat insulating block.

FIG. 5 is a sectional view of an inspection port device according to a third embodiment of the present invention.

FIG. 6 is a sectional view of a conventional ceiling inspection port device.

FIG. 7 is an exploded perspective view of the inspection port device.

FIG. 8 is a sectional view of a conventional floor inspection port device.

[Explanation of symbols]

 1 Ceiling Plate 2 Opening 3 Fixed Frame 6 Inner Flange 7 Packing 8 Rib 9 Fitting Outer Cylinder 12 Insulation Block 13 Board 14 Fitting Body 17 Lid

Claims (9)

[Claims] 1. A fixed frame mounted on an opening in a ceiling or a floor, a fitting outer cylinder made of a heat insulating material arranged on the outer side of an inner flange on the back side of the fixed frame, and a board and a back part thereof provided integrally. An inspection port device comprising a heat insulating block made of a heat insulating material fitting body and a lid, wherein the fitting body is fitted and fixed to a fitting outer cylinder, and the lid body is fitted to a fixing frame. 2. A fixed frame to be mounted on an opening in a ceiling or a floor, a fitting outer cylinder made of a heat insulating material arranged on the outer side of an inner flange on the back side of the fixed frame, and a board and a back part thereof provided integrally. It is composed of a heat insulating block composed of a heat insulating material fitting body and a lid body, and the back peripheral edge of the board of the heat insulating block is brought into contact with the inner side of the inner flange of the fixed frame through the packing and the fitting body is fitted to the fitting outer cylinder. Inspection port device that is fixed by doing so and the lid is fitted to the fixed frame. 3. The fitting outer cylinder made of a heat insulating material has a tapered surface such that the hole becomes smaller toward the tip,
3. The inspection port device according to claim 1, wherein the fitting body made of a heat insulating material has a tapered surface that fits the fitting outer cylinder. 4. A fixed frame to be installed in an opening of a floor, a fitting outer cylinder made of a heat insulating material arranged below an inner flange on a lower side of the fixed frame, and a flange at an upper opening peripheral edge of the fixed frame. An underfloor storage container with a bottom that locks on the inner flange and can be inserted into and removed from the fitting outer cylinder; a heat insulating block made of a heat insulating material that is integrally provided on the board and its back; and a lid. An inspection port device in which the body is fitted to the upper part of the underfloor storage container and the lid is fitted to the fixed frame. 5. The inspection port device according to claim 4, wherein packing is attached to a joint surface of either one of the upper surface of the inner flange of the fixed frame and the flange of the underfloor storage container. 6. The inspection port device according to claim 1, wherein the fitting outer cylinder and the fitting body are made of a foam material. 7. The inspection port device according to claim 1, wherein the substrate of the heat insulating block is composed of a plate body having high moisture permeability resistance on both sides and a heat insulating layer sandwiched between the plate bodies. . 8. The inspection port device according to claim 7, wherein the substrate is made of a moisture impermeable metal plate on both sides and a heat insulating synthetic resin sandwiched between the moisture impermeable metal plates. 9. The fixing frame comprises a packing having a thickness inside the inner flange on the back side, and a rib having a height smaller than the thickness of the packing at the end of the inner flange. The inspection port device according to any one of 4 and 5.