A multi-ribbed cavity floor ventilation duct structure

Abstract

This utility model belongs to the field of building construction ventilation application technology, specifically disclosing a ribbed hollow floor slab ventilation duct structure, including several ribbed hollow floor slabs, transition ducts, and ducts. The duct is composed of a front circular hollow connecting part, a middle transition hollow connecting part, and a rear circular hollow connecting part, which are sequentially connected. The front circular hollow connecting part is used for sealing and fixing to the side plate of the ribbed hollow floor slab. The beneficial effects of this ribbed hollow floor slab ventilation duct structure are: 1. Its design structure is reasonable, facilitating manufacturing and pre-assembly or on-site assembly, greatly shortening the construction efficiency of the duct and improving the project construction progress. The overall modular design also facilitates transportation; 2. It possesses good fire resistance, pressure resistance, and sealing performance during use, achieving safe and stable ventilation of the ribbed hollow floor slab when combined with ventilation equipment.

Description

Technical Field

[0001] This utility model belongs to the field of building construction ventilation application technology, specifically relating to a ribbed hollow floor ventilation duct structure. Background Technology

[0002] In a ribbed concrete cavity floor structure, the internal replacement of some concrete forms a cavity (ventilated cavity) to reduce the structure's self-weight and achieve ventilation.

[0003] Air ducts are piping systems used for air transport and are an important part of the ventilation system in ribbed concrete cavity floors. Currently, the traditional construction method for air ducts in building construction is on-site casting. This not only increases construction time and affects project progress, but also makes it difficult to control quality. In addition, the ducts have poor strength and perform poorly in terms of fire resistance and thermal insulation.

[0004] Therefore, based on the above problems, this utility model provides a ribbed hollow floor ventilation duct structure. Utility Model Content

[0005] Purpose of the utility model: The purpose of this utility model is to provide a ribbed hollow floor ventilation duct structure to solve the problems of long construction time, poor strength, poor fire resistance and heat insulation of traditional ribbed hollow floor ventilation ducts in the prior art.

[0006] Technical Solution: This utility model discloses a ventilation duct structure for a ribbed hollow floor slab, comprising a plurality of ribbed hollow floor slabs, a transition duct connecting the plurality of ribbed hollow floor slabs in series, and a duct installed on the ribbed hollow floor slabs. The duct is composed of a front circular hollow connecting part, a middle transition hollow connecting part, and a rear circular hollow connecting part. The front circular hollow connecting part, the middle transition hollow connecting part, and the rear circular hollow connecting part are connected sequentially. The front circular hollow connecting part is used for sealing and fixing to the side plate of the ribbed hollow floor slab. The front circular hollow connecting part and the rear circular hollow connecting part are respectively set as circular structures, and the middle transition hollow connecting part is set as a trumpet-shaped structure.

[0007] In this technical solution, the inner walls of the intermediate transition hollow connecting part and the tail end circular hollow connecting part are provided with a first light steel angle keel, and the inner wall of the front end circular hollow connecting part is provided with a second light steel angle keel; wherein, the front end circular hollow connecting part, the intermediate transition hollow connecting part, and the tail end circular hollow connecting part are all made of fiber reinforced calcium silicate board.

[0008] The ventilation duct structure of the ribbed hollow floor slab of this technical solution further includes a first fixed light steel angle keel set on the connecting surface of the circular hollow connecting part and the intermediate transition hollow connecting part, a first self-tapping screw that assembles the circular hollow connecting part and the intermediate transition hollow connecting part through the first fixed light steel angle keel, and a first fireproof sealant layer set on the connecting surface of the circular hollow connecting part and the intermediate transition hollow connecting part.

[0009] The ventilation duct structure of the ribbed hollow floor slab of this technical solution further includes a second fixed light steel angle keel installed at the intermediate transition hollow connection part and the tail circular hollow connection part, a second self-tapping screw for assembling the intermediate transition hollow connection part and the tail circular hollow connection part through the second fixed light steel angle keel, and a second fireproof sealant layer installed on the connection surface of the intermediate transition hollow connection part and the tail circular hollow connection part.

[0010] In this technical solution, the diameter A1 of the front circular hollow connecting part is smaller than the diameter A2 of the rear circular hollow connecting part.

[0011] Compared with the prior art, the beneficial effects of the ribbed hollow floor ventilation duct structure of this utility model are as follows: 1. Its design structure is reasonable, which is convenient for manufacturing and pre-assembly or on-site assembly, greatly shortening the construction efficiency of the duct and improving the construction progress. At the same time, the overall modular design is also convenient for transportation; 2. When in use, it has good fire resistance, pressure resistance and sealing performance, and when combined with ventilation equipment, it can achieve safe and stable ventilation of the ribbed hollow floor. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the connection between the ribbed hollow floor slab, the transition duct, and the air duct of this utility model.

[0014] Figure 2 This is a cross-sectional structural schematic diagram of a ribbed hollow floor ventilation duct structure according to this utility model;

[0015] Figure 3 yes Figure 2 A magnified view of the structure at point A in the diagram;

[0016] Figure 4 yes Figure 2 A magnified schematic diagram of the local structure at point B;

[0017] The numbers in the diagram are as follows: 11-Ribboned hollow floor slab, 12-Transition duct, 13-Air duct, 131-Front end circular hollow connector, 132-Middle transition hollow connector, 133-Tail end circular hollow connector, 134-First fixed light steel angle keel, 135-Second fixed light steel angle keel, 136-First light steel angle keel, 137-Second light steel angle keel, 138-First fireproof sealant layer, 139-First self-tapping screw, 140-Second fireproof sealant layer, 141-Second self-tapping screw. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that the terms "top," "bottom," "one side," "the other side," "front," "back," "middle part," "inner," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0021] Example

[0022] like Figure 1 and Figure 2 The illustrated ventilation duct structure of a ribbed hollow floor slab includes several ribbed hollow floor slabs 11, a transition duct 12 connecting the several ribbed hollow floor slabs 11 in series, and ducts 13 installed on the ribbed hollow floor slabs 11.

[0023] The duct 13 is composed of a front circular hollow connecting part 131, a middle transition hollow connecting part 132, and a rear circular hollow connecting part 133. The front circular hollow connecting part 131, the middle transition hollow connecting part 132, and the rear circular hollow connecting part 133 are connected in sequence. The front circular hollow connecting part 131 is used to seal and fix it to the side plate of the ribbed hollow floor slab 11. The front circular hollow connecting part 131 and the rear circular hollow connecting part 133 are respectively set as circular structures, and the middle transition hollow connecting part 132 is set as a trumpet-shaped structure.

[0024] The aforementioned three-part structure consists of a front circular hollow connecting part 131, a middle transition hollow connecting part 132, and a rear circular hollow connecting part 133, which facilitates separate prefabrication and transportation, as well as on-site construction assembly or pre-assembled use.

[0025] In addition, the inner walls of the intermediate transition hollow connecting part 132 and the tail end circular hollow connecting part 133 are provided with a first light steel angle keel 136, and the inner wall of the front end circular hollow connecting part 131 is provided with a second light steel angle keel 137. The front end circular hollow connecting part 131, the intermediate transition hollow connecting part 132 and the tail end circular hollow connecting part 133 are made of fiber reinforced calcium silicate board.

[0026] The above design structure enhances the overall structural strength and provides excellent fire resistance and pressure resistance.

[0027] Furthermore, preferably as follows Figure 3 The ribbed hollow floor ventilation duct structure shown also includes a first fixed light steel angle keel 134 disposed on the connecting surface of the circular hollow connecting part 131 and the intermediate transition hollow connecting part 132, a first self-tapping screw 139 for assembling the circular hollow connecting part 131 and the intermediate transition hollow connecting part 132 through the first fixed light steel angle keel 134, and a first fireproof sealant layer 138 disposed on the connecting surface of the circular hollow connecting part 131 and the intermediate transition hollow connecting part 132, wherein the thickness of the first fireproof sealant layer 138 is 2mm;

[0028] The above design structure facilitates the rapid assembly of the circular hollow connecting part 131 and the intermediate transition hollow connecting part 132, and provides good fire resistance and sealing performance.

[0029] Furthermore, preferably as follows Figure 4The ribbed hollow floor ventilation duct structure shown also includes a second fixed light steel angle keel 135 connected to the intermediate transition hollow connection 132 and the tail circular hollow connection 133, a second self-tapping screw 141 that assembles the intermediate transition hollow connection 132 and the tail circular hollow connection 133 through the second fixed light steel angle keel 135, and a second fireproof sealant layer 140 provided on the connection surface of the intermediate transition hollow connection 132 and the tail circular hollow connection 133, wherein the thickness of the second fireproof sealant layer 140 is 2mm.

[0030] The above design structure facilitates the rapid assembly of the intermediate hollow connecting part 132 and the tail circular hollow connecting part 133, and provides good fire resistance and sealing performance.

[0031] The ribbed hollow floor ventilation duct structure of this structure has a diameter A1 of the front circular hollow connecting part 131 that is smaller than the diameter A2 of the rear circular hollow connecting part 133. Combined with the intermediate transition hollow connecting part 132 of the trumpet-shaped structure, it forms a double-sided deflection variable diameter duct structure to achieve stable ventilation function.

[0032] The working principle or structural principle of this assembled high-strength fire-resistant air duct:

[0033] First, apply a first fireproof sealant layer 138 to the connecting surfaces of the circular hollow connecting part 131 and the intermediate transition hollow connecting part 132. Then, use the first self-tapping screws 139 to fix and assemble the circular hollow connecting part 131 and the intermediate transition hollow connecting part 132 through the first fixed light steel angle keel 134.

[0034] Then, apply the second fireproof sealant layer 140 to the connecting surfaces of the intermediate transition hollow connecting part 132 and the tail end round hollow connecting part 133, and then use the second self-tapping screw 141 to fix and assemble the intermediate transition hollow connecting part 132 and the tail end round hollow connecting part 133 through the second fixed light steel angle keel 135.

[0035] Finally, one side of the circular hollow connecting part 131 is fixed to the side plate of the ribbed hollow floor slab 11 (the side plate of the ribbed hollow floor slab 11 contains ventilation openings), and the ventilation equipment (not shown in the figure, which does not affect the disclosure of the technical solution of this application) is fixed to the circular hollow connecting part 133 at the tail end.

[0036] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A ribbed hollow floor ventilation duct structure, comprising a plurality of ribbed hollow floor slabs (11), a transition duct (12) connecting the plurality of ribbed hollow floor slabs (11) in series, and a duct (13) disposed on the ribbed hollow floor slabs (11), characterized in that: The air duct (13) is composed of a front circular hollow connecting part (131), a middle transition hollow connecting part (132), and a rear circular hollow connecting part (133). The front circular hollow connecting part (131), the middle transition hollow connecting part (132), and the rear circular hollow connecting part (133) are connected in sequence. The front circular hollow connecting part (131) is used to seal and fix it to the side plate of the ribbed hollow floor slab (11). The front circular hollow connecting part (131) and the rear circular hollow connecting part (133) are respectively set as circular structures, and the intermediate transition hollow connecting part (132) is set as a trumpet-shaped structure.

2. A plenum duct structure for a multi-ribbed cavity floor according to claim 1, wherein: The inner walls of the intermediate transition hollow connecting part (132) and the tail end circular hollow connecting part (133) are provided with a first light steel angle keel (136), and the inner wall of the front end circular hollow connecting part (131) is provided with a second light steel angle keel (137). The front circular hollow connecting part (131), the middle transition hollow connecting part (132), and the rear circular hollow connecting part (133) are all made of fiber-reinforced calcium silicate board.

3. A plenum duct structure for a multi-ribbed cavity floor according to claim 1 or 2, wherein: The ribbed hollow floor ventilation duct structure further includes a first fixed light steel angle keel (134) disposed on the connection surface of the circular hollow connection part (131) and the intermediate transition hollow connection part (132), a first self-tapping screw (139) for assembling the circular hollow connection part (131) and the intermediate transition hollow connection part (132) through the first fixed light steel angle keel (134), and a first fireproof sealant layer (138) disposed on the connection surface of the circular hollow connection part (131) and the intermediate transition hollow connection part (132).

4. The ventilated duct structure of a multi-ribbed cavity floor according to claim 1 or 2, characterized in that: The ribbed hollow floor ventilation duct structure further includes a second fixed light steel angle keel (135) connected to the intermediate transition hollow connection part (132) and the tail circular hollow connection part (133), a second self-tapping screw (141) used to assemble the intermediate transition hollow connection part (132) and the tail circular hollow connection part (133) through the second fixed light steel angle keel (135), and a second fireproof sealant layer (140) provided on the connection surface of the intermediate transition hollow connection part (132) and the tail circular hollow connection part (133).

5. A plenum duct structure for a multi-ribbed cavity floor according to claim 1, wherein: The diameter A1 of the front circular hollow connecting part (131) is smaller than the diameter A2 of the rear circular hollow connecting part (133).

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