JP4813866B2 - Floor grill structure - Google Patents

Description

  The present invention relates to a floor grill (floor gallery) structure capable of maintaining the air permeability of a duct piped under a floor of a building such as a house and extending the maintenance interval.

  Conventionally, a ventilation system is known in which a duct for ventilation is arranged using an underfloor space 2 of a building 1 such as a house shown in FIG. 11 (see, for example, Patent Document 1 and Patent Document 2). .

  First, in terms of configuration, in such a conventional ventilation system, the indoor spaces 3 to 5 of the building 1 are partitioned by the floor surface 6 and the wall surface portions 7.

  Among these, in the underfloor space 2 located below the floor surface 6, the inside and outside air is circulated or sucked and exhausted into the indoor spaces 3, 5, etc. via the duct bodies 8, 8 that are horizontally piped, There is provided an air conditioning unit 9a of the ventilation system 9 in which temperature adjustment such as warming and cooling or humidity adjustment is performed.

  In such a ventilation system 9, ventilation grill portions 11 are provided in ventilation openings 10 formed in the floor surface 6.

  In the ventilation grill part 11, a vertical pipe part 13 extending substantially vertically from a grating part 12 embedded along the floor surface 6 is provided.

  The vertical pipe portion 13 is extended with an elbow portion 14 connected to the horizontally piped duct body 8 by being bent by about 90 degrees.

  Next, the operation of the conventional ventilation system 9 will be described.

  In this conventional ventilation system 9, the outside air taken in from the outside air inlet 15, the indoor inlet 16, or the like, or the air in the indoor spaces 3, 5, etc. is appropriately harmonized by the heating unit 9 a, and the duct body 8 , 8 and sent out in the direction of the ventilation grille 11, 11.

In the ventilation grill part 11, the conditioned air is discharged into the indoor spaces 3 and 5 through the grating part 12, and the indoor spaces 3 and 5 are kept in a comfortable state.
Japanese Patent No. 3002962 (paragraphs 0007 to 0012, FIG. 1) JP-A-10-160198 (paragraphs 0010 to 0040, FIG. 1)

  However, in the conventional ventilation system configured as described above, the elbow part 14 is connected to the duct body 8 that is horizontally piped by only bending the elbow part 14 from the vertical pipe part 13 by about 90 degrees.

  For this reason, foreign matter such as liquid, dust, and small objects that have entered the vertical pipe portion 13 from the indoor spaces 3 and 5 enter the direction of the duct body 8 along the curved shape of the bottom surface of the elbow portion 14, By staying in the duct body 8, there is a possibility that the ventilation resistance is increased or the heating unit 9a is reached.

  Accordingly, the present invention provides a floor grill structure that can be easily removed even when foreign matter enters the vertical tube, has good maintainability, and can supply clean air without increasing ventilation resistance. The challenge is to do.

It is used in a ventilation system that intakes and exhausts air into the indoor space via a duct body horizontally piped below the indoor floor surface, and partially overlaps with the ventilation opening formed in the floor surface. a top view square edge member to be engaged, grill side vertical which extends toward the plurality of ventilation grille for ventilation openings and a grating part which is aligned vertically and horizontally was kicked set downward At the lower part of the pipe part, when fitting into the vertical pipe part of the elbow member having the elbow part, a plurality of locking fins formed inwardly projecting from the vertical pipe part of the elbow member are respectively locked. And a vertical pipe portion in which a plurality of rotation stop pieces that are allowed to rotate within about 90 degrees are formed , and an elbow portion that is connected to the duct main body by horizontally bending a pipe line from the vertical pipe portion A floor grill structure having a position between the elbow portion and the vertical pipe portion. The height direction position of the surface portion, than the height direction position of the lowermost surface portion of the duct body, with are set to be lower, just below the vertical pipe portion, said bottom portion positioned, flat The bottom plate portion and the mortar-shaped inclined surface portion located around the bottom plate portion can hold a certain amount of foreign matter, etc., and the held foreign matter can get over from the end of the duct body, It is characterized in floor grills structure that having a step portion hardly penetrate towards the interior duct body.

  According to the first aspect of the present invention configured as described above, the height direction position of the bottom surface portion formed in the elbow portion is set lower than the height direction position of the lowermost surface portion of the duct body. Has been.

  For this reason, there is no possibility that the foreign matter that has entered from the vertical pipe portion stays on the bottom surface portion of the elbow portion and enters the duct body that is horizontally piped.

  Therefore, the foreign matter staying on the bottom surface portion can be easily removed from above the vertical tube portion, and the maintainability is good.

  In addition, there is no possibility that foreign matter will remain inside the duct body or foreign matter may reach the equipment such as the air conditioning unit, so that clean air can be supplied over a long period of time without increasing ventilation resistance. Can be supplied.

  Accordingly, maintenance intervals such as cleaning and replacement of equipment can be lengthened, and maintenance costs can be reduced.

  Furthermore, even when a filter or a net is attached to the ventilation grill provided in the ventilation opening, it is possible to use a simple and emphasizing design without increasing ventilation resistance. The degree of freedom can be improved.

The front Symbol bottom portion, so located beneath the vertical pipe portion, the liquid that has dropped from the ventilation grille, dust and foreign matters small objects or the like, certainly, is received by the bottom surface portion.

Then, foreign substances are accumulated from the indoor space side toward the center of the bottom plate portion by the mortar-shaped inclined surface portion located around the bottom plate portion of the bottom surface portion through the ventilation grill portion . For this reason, since the staying foreign material can be removed easily, the maintainability is further improved.

  Next, a floor grill structure used in a building ventilation system according to the best mode for carrying out the present invention will be described with reference to the drawings.

  1 to 10 show a floor grill structure according to an embodiment of the present invention.

  First, in terms of the configuration, the floor grill structure of this embodiment is applied to a ventilation system that arranges ventilation ducts using the underfloor spaces 102a and 102b of a building 101 such as a house. .

  In the building 101 in which the ventilation system of this embodiment is used, the indoor spaces 103 to 108 are partitioned by the floor surface 6.

  Among these, in the underfloor space 102b located below the floor surface 6 on the first floor, the inside and outside air is circulated or sucked into and taken out from the indoor spaces 103, 108, etc. via the duct bodies 8, 8 that are horizontally piped. Thus, the ventilation device 109a of the ventilation system 109 in which temperature adjustment such as heating and cooling or humidity adjustment is performed is placed on the upper surface of the solid base 110.

  The ventilation device 109a is configured to intake and exhaust air in the indoor spaces 103 to 108 through the distribution device 109b and the like and the duct main body 8 horizontally piped below the floor surfaces 6. , Each connected.

  In the floor grill structure of the first embodiment shown in FIGS. 1 to 10, the ventilation grill portion 111 is provided in the ventilation opening portion 10 formed in the floor surface 6 in the ventilation system 109.

  As shown in FIG. 1, each of the ventilation grill sections 111 is provided with a grating section 115 on the uppermost surface.

  As shown in FIG. 3, the grating portion 115 is affixed to the outer frame body 112 that is locked to the periphery of the opening 10a of the particle board 6a constituting the floor surface 6, and the upper surface side of the particle board 6a. The flooring material 6b has a square edge member 113 that is partially overlapped and locked to the opening 10b of the flooring material 6b, and a lattice portion 114 in which a plurality of ventilation holes are arranged vertically and horizontally. Yes.

  Among these, as shown in FIG. 7, the outer frame body 112 is provided with a grille vertical pipe portion 116 extending substantially vertically from the grating portion 115.

  Further, a dustproof mesh member 117 and an air volume adjustment cap member 118 are mounted inside the grill side vertical pipe portion 116 so that the air volume of the air to be sent out can be adjusted.

  Further, the lower pipe portion 116a of the grill side vertical pipe portion 116 is formed so as to project inwardly in the vertical pipe portion 121 when fitted into the vertical pipe portion 121 of the elbow member 120 having the elbow portion 122. A plurality of rotation stopping pieces 116b, which are respectively locked with the plurality of locking fins 121a, and are allowed to rotate within about 90 degrees are formed.

  The lower portion 116a is inserted into the vertical pipe portion 121 from above, so that the grating portion 115 and the elbow member 120 are connected.

  In this elbow member 120, a horizontal pipe portion 123 is formed integrally with the elbow portion 122 through the elbow portion 122 by bending the pipe direction of the vertical pipe portion 121 by about 90 degrees. ing.

  As shown in FIG. 9, the elbow portion 122 has a height direction position of the lowermost surface portion 8 b of the horizontally piped duct body 8 that is connected to the horizontal pipe portion 123 by inserting an end portion 8 a. In addition, a bottom surface portion 124 whose height direction position is set is provided so as to be lower.

  As shown in FIG. 8, the bottom surface portion 124 is configured to be located directly below the longitudinal tube portion 121 in the tube axis direction, and is located around the flat bottom plate portion 124a and the bottom plate portion 124a. The mortar-shaped inclined surface portion 124b makes it possible to hold a certain amount of foreign matter or the like, and the held foreign matter or the like gets over the stepped portion 124c from the end portion 8a of the duct main body 8 toward the inside of the duct main body 8. It is configured to be difficult to intrude.

  Further, in the horizontal pipe portion 123 of the first embodiment, there are a plurality of fixing fins 123a, which are held in contact with the outer peripheral surface of the end portion 8a of the duct body 8 at a constant interval on the circumference. Inwardly protruding and formed.

  Next, the effect of the floor grill structure of the first embodiment will be described.

  In the floor grill structure of the first embodiment, first, as shown in FIG. 1, the outside air taken in from the outside air inlet 15 or the ventilation grill portion 111 of the ventilation opening 10 provided in the indoor space 106 or the like, or The air in the indoor space 106 and the like is appropriately harmonized by the ventilation device 109a of the ventilation system 109, and the air in the indoor spaces 104, 105 and 107, 108 is distributed via the distribution device 109b and the duct bodies 8 and 8. It is sent out in the direction of the ventilation grille 111 ... provided on each floor surface 6.

  In the ventilation grill portion 111, air flows along the pipe line bent approximately 90 degrees in the vertical direction by the elbow portion 122 through the lattice portion 114 of the grating portion 115. The indoor space 104 and the like are held in a comfortable state.

  In the first embodiment, as shown in FIG. 9, the height direction position of the bottom surface portion 124 formed in the elbow portion 122 is set lower than the height direction position of the lowermost surface portion 8 b of the duct body 8. Has been.

  For this reason, foreign matter that has entered the elbow portion 122 from the grating portion 115 via the vertical tube portion 121 does not stay on the bottom surface portion 124 of the elbow portion 122 and get over the stepped portion 124c. There is no risk of entering the horizontally piped duct body 8.

  In this way, the foreign matter staying on the bottom surface portion 124 located directly below the grating portion 115 can be easily removed from the upper indoor space 104 via the vertical pipe portion 121, and the maintenance is good.

  In addition, there is no possibility that foreign matter stays inside the duct body 8 or that foreign matter reaches the air conditioning equipment that performs cooling and heating such as the ventilator 109a. Can supply long-term air.

  Accordingly, maintenance intervals such as cleaning and replacement of equipment can be lengthened, and maintenance costs can be reduced.

  Furthermore, even when attaching the dustproof mesh member 117 or the grating part 115 having the lattice part 114 as shown in FIG. 5 to the ventilation grill part 111 provided in the ventilation opening part 10, the ventilation resistance does not increase. It is possible to use a simple design that emphasizes design, and the degree of design freedom can be improved.

  Further, in the first embodiment, the bottom side 124 is directly below the ventilation grill 111, and the grille-side vertical pipe 121 and the coupling are connected so that the center of the pipe line is substantially the center of the bottom 124. Therefore, foreign matters such as liquid, dust, and small objects dropped from the ventilation grill 111 are reliably received by the bottom surface 124.

  Further, since the foreign matters staying on the bottom surface portion 124 can be easily removed from the indoor space 104 or the like through the ventilation grill portion 111, the maintainability is good.

  At this time, in the first embodiment, foreign matters are accumulated in the central direction of the bottom plate portion 124a by the mortar-shaped inclined surface portion 124b located around the bottom plate portion 124a of the bottom surface portion 124, and therefore, further easily removed. Is possible and maintenance is good.

  The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes that do not depart from the gist of the present invention are not limited to this embodiment. Included in the invention.

  That is, in the first embodiment, the bending angle of the elbow portion 122 of the elbow member 120 is configured by horizontally bending the pipe line from the vertical tube portion 121 by about 90 degrees, but is not limited thereto. For example, at a bending start position, even if it is about 10 to 80 degrees or the like, it can be bent at any angle such as being horizontal at a position where it is connected so as to be connected to the duct body 8 that is horizontally piped. The shape, the number of bendings, and the like are not particularly limited.

BRIEF DESCRIPTION OF THE DRAWINGS It is a typical longitudinal cross-sectional view explaining the structure of the whole building by the floor grill structure of Example 1 of the best mode of this invention. It is a disassembled perspective view of a ventilation grille part in the floor grille structure of Example 1. It is a partial cross section side view explaining the composition of the ventilation grille part in the floor grill structure of Example 1. It is a floor grill structure of Example 1, and is a side view of a grating part. It is a floor grill structure of Example 1, and is a top view of a grating part. It is sectional drawing in the position along the BB line in FIG. 5, explaining the structure of a grating part by the floor grill structure of Example 1. FIG. It is sectional drawing in the position along the AA line in FIG. 5, explaining the structure of a grating part by the floor grill structure of Example 1. FIG. It is a top view of an elbow part by the floor grill structure of Example 1. FIG. FIG. 9 is a cross-sectional view taken along the line CC in FIG. 8 for explaining the configuration of the elbow portion in the floor grill structure of the first embodiment. It is the front view which looked at the elbow part from the horizontal pipe part side by the floor grill structure of Example 1. FIG. It is a typical longitudinal cross-sectional view explaining the structure of the whole building where the ventilation system was applied by the floor grill structure of the prior art example.

Explanation of symbols

8 Duct body 8b Lowermost surface part 6 Floor surface 10 Ventilation opening 101 Building 102a, 102b Under floor space 103-108 Indoor space (indoor)
109 Ventilation system 111 Ventilation grill part 121 Vertical pipe part 122 Elbow part 124 Bottom part

Claims (1)

Used in a ventilation system that performs intake and exhaust to the indoor space through a duct body horizontally piped below the floor of the room,
The ventilation opening formed in the floor surface is provided with an edge member having a square shape in a top view that is partially overlapped and locked, and a lattice portion in which a plurality of ventilation holes are arranged vertically and horizontally. The vertical pipe portion of the elbow member is fitted into the vertical pipe portion of the elbow member having an elbow portion at the lower portion of the grill side vertical pipe portion extending downward from the ventilated grill portion. A vertical tube portion formed with a plurality of rotation stopper pieces that are respectively locked with a plurality of locking fins that are formed inwardly and are allowed to rotate within about 90 degrees ;
A floor grill structure having an elbow part connected to the duct main body by bending a pipe line horizontally from the vertical pipe part,
Among the elbow parts, the height direction position of the bottom surface part located below the vertical pipe part is set to be lower than the height direction position of the lowermost surface part of the duct body ,
The bottom surface portion located directly below the vertical tube portion is capable of retaining a certain amount of foreign matter and the like by a flat bottom plate portion and a mortar-shaped inclined surface portion positioned around the bottom plate portion. A floor grill structure characterized by having a stepped portion that makes it difficult for foreign matter or the like that has entered to enter the duct body from the end of the duct body .

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