CN221482897U - Finished fireproof air duct - Google Patents

Abstract

The utility model relates to the technical field of fireproof air pipes, and discloses a finished fireproof air pipe which comprises an outer layer pipe, wherein a fireproof plate is attached to the inner side wall of the outer layer pipe; the inner side wall of the fireproof plate is adhered with a square inner layer pipe, and the inner layer pipe is enclosed to form a smoke exhaust channel; the fireproof plate is clamped between the outer layer pipe and the inner layer pipe; the inner layer pipe comprises two inner layer bending sheets which are bent and oppositely arranged, the two inner layer bending sheets are arranged in a surrounding mode, a smoke exhaust channel is formed by surrounding, and the end portions of the two inner layer bending sheets are connected with each other to form two embedded structures. The inner layer pipe is formed by mutually jogged and connected end parts of two oppositely arranged inner layer bending sheets, the inner layer pipe is fixedly connected with the fireproof plate by a fixing method such as welding or adhesive layers, and the inner layer pipe is fixedly connected with the fireproof plate by a firm jogged structure, so that the inner layer pipe is firm in structure, the integral structural strength of the inner layer pipe cannot be obviously attenuated along with the time, and the inner layer pipe is not easy to collapse.

Description

Finished fireproof air duct

Technical Field

The utility model relates to the technical field of fireproof air pipes, in particular to a finished fireproof air pipe.

Background

The fireproof air pipe is widely applied to the cell basements and the mansion, is used for blowing external natural wind into the cell basements and the mansion, can not be damaged by big fire when fire disaster occurs, and still can carry out air transportation.

In the prior art, a galvanized iron sheet ventilating duct is generally used, a keel frame of a fireproof air pipe is prefabricated, after the keel frame is installed at a set position, galvanized iron sheets are circumferentially arranged on the periphery of the keel frame, a plurality of fireproof plates are respectively installed on each side face of the keel, at the moment, the galvanized iron sheets cover the peripheral faces of the fireproof plates to form outer galvanized iron sheets, after installation is completed, galvanized iron sheets are installed on the inner peripheral faces of the fireproof plates to form inner galvanized iron sheets, the inner galvanized iron sheets enclose to form a smoke exhaust channel, but due to the fact that welding forming is often adopted among the inner galvanized iron sheets, the structure of the fireproof air duct is unstable more and more along with the time, and the fireproof air duct is easy to collapse when fire occurs.

Disclosure of utility model

The utility model aims to provide a finished fireproof air duct, and aims to solve the problem that in the prior art, the structure of the finished fireproof air duct is not stable enough.

The utility model is realized in such a way that the finished fireproof air pipe comprises a square outer layer pipe which is supported by metal materials, wherein fireproof plates which are arranged in a surrounding manner are attached to the inner side wall of the outer layer pipe; the inner side wall of the fireproof plate is adhered with a square inner layer pipe, and the inner layer pipe is enclosed to form a smoke exhaust channel; the fireproof plate is clamped between the outer layer pipe and the inner layer pipe;

The inner layer pipe comprises two inner layer bending sheets which are bent and oppositely arranged, the two inner layer bending sheets are circumferentially arranged and enclose to form the smoke exhaust channel, and the end parts of the two inner layer bending sheets are mutually connected to form two jogged structures.

Optionally, a notch groove is formed in the fireproof plate, and the notch groove is provided with a groove opening facing the inner layer pipe; the end parts of the inner-layer bending sheets are provided with extension sections, and the extension sections of the two inner-layer bending sheets are embedded into the notch grooves through groove openings to form the embedded structure.

Optionally, the two extending sections are clamped in the notch groove and fixedly connected in a fitting manner.

Optionally, the inner side wall of the fireproof plate is provided with a groove, two ends of one inner layer bending sheet are provided with pressing sections, and the pressing sections are embedded in the groove and press against the end of the other inner layer bending sheet to form the embedded structure.

Optionally, the pressing section fills the groove; the pressing section is fixedly connected with the end part of the other inner layer bending sheet in a fitting way.

Optionally, one end of the inner layer bending piece is bent outwards for a plurality of times to form a multi-section bending area; the multi-section bending area comprises a clamping part and a bending part, the clamping part is provided with a clamping groove, and the length direction of the clamping groove is arranged in the same direction as the length direction of the inner-layer bending piece; the other end part of the inner layer bending piece is bent outwards to form an embedded section; the embedded section of one inner layer bending sheet is embedded into the clamping groove of the other inner layer bending sheet to form the embedded structure.

Optionally, one end of the inner layer bending piece is bent towards the smoke exhaust channel to form the bending part.

Optionally, the bending part bends towards the fireproof plate for multiple times to form the clamping part; the clamping part comprises an inner side plate arranged in the smoke exhaust channel and an outer side plate inserted into the fireproof plate, and the outer side plate and the inner side plate are enclosed to form the clamping groove.

Optionally, the inner side plate is connected with the kink, the inner side plate is connected with the outer side plate, along the direction of the middle part orientation multistage bending region of inlayer kink, the inner side plate is arranged in between kink and the outer side plate.

Optionally, the outer layer tube comprises two outer layer bending sheets which are bent and oppositely arranged, and the two outer layer bending sheets are circumferentially arranged and enclose to form an outer layer tube; the end parts of the two inner-layer bending sheets are connected with each other to form two connecting structures;

one end part of the outer bending piece is bent inwards to form an inserting strip arranged in the fireproof plate; the other end part of the outer bending piece protrudes towards the fireproof plate to form a mounting section, and the mounting section is provided with a mounting groove; the cutting of one outer bending piece is embedded into the mounting groove of the other outer bending piece, so that the connecting structure is formed.

Compared with the prior art, the finished fireproof air pipe provided by the utility model has the advantages that the frame body of the finished fireproof air pipe is formed by the outer layer pipe, the fireproof plate is arranged in the frame body, the inner layer pipe is arranged on the inner side wall of the fireproof plate, the inner layer pipe is formed by mutually jogged and connected the end parts of the two oppositely arranged inner layer bending sheets, the inner layer pipe is fixedly connected with the fireproof plate through welding or adhesive layers and the like, and the extremely stable jogged structure is further arranged for reinforcing and connecting, so that the inner layer pipe is stable in structure, the integral structural strength of the inner layer pipe cannot be obviously attenuated along with the time, and the inner layer pipe is not easy to collapse.

Drawings

FIG. 1 is a schematic illustration in cross-section of example 1 provided by the present utility model;

FIG. 2 is a partial schematic view of the view A of FIG. 1 provided by the present utility model;

FIG. 3 is a schematic cross-sectional view of example 2 provided by the present utility model;

FIG. 4 is a partial schematic view of the portion B of FIG. 2 provided by the present utility model;

FIG. 5 is a schematic cross-sectional view of example 3 provided by the present utility model;

FIG. 6 is a partial schematic view of the view C of FIG. 5 provided by the present utility model;

fig. 7 is a partial schematic view of fig. 5D provided by the present utility model.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The implementation of the present utility model will be described in detail below with reference to specific embodiments.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limiting the present utility model, and specific meanings of the terms described above may be understood by those of ordinary skill in the art according to specific circumstances.

Referring to fig. 1-7, a preferred embodiment of the present utility model is provided.

The utility model provides a finished fireproof air duct, which comprises an outer pipe 100 which is supported by metal materials and is square, wherein a fireproof plate 200 which is arranged in a surrounding manner is attached to the inner side wall of the outer pipe 100; the inner side wall of the fireproof plate 200 is attached with a square inner layer pipe 300, and the inner layer pipe 300 is enclosed to form a smoke exhaust channel 400; the fire protection plate 200 is sandwiched between the outer layer pipe 100 and the inner layer pipe 300;

the inner layer tube 300 includes two inner layer bending sheets 301 which are bent and oppositely arranged, the two inner layer bending sheets 301 are circumferentially arranged to form a smoke exhaust channel 400, and the ends of the two inner layer bending sheets 301 are connected with each other to form two jogged structures.

Above-mentioned finished product fire prevention tuber pipe that provides forms the support body of finished product fire prevention tuber pipe through outer layer pipe 100, has laid PLASTIC LAMINATED 200 in its inside to lay inlayer pipe 300 at PLASTIC LAMINATED 200's inside wall, inlayer pipe 300 is by the tip mutual gomphosis connection of two inlayer bending pieces 301 of relative arrangement formation, is equipped with between inlayer pipe 300 and PLASTIC LAMINATED 200 and through fixed connection such as welding or bonding glue film, and still is equipped with extremely firm gomphosis structure reinforcing connection, makes inlayer pipe 300 stable in structure, and along with the lapse of time, its overall structure intensity can not obviously decay, difficult subsides.

Referring to fig. 1 and 2, in a first embodiment, a notch groove 210 is provided in a fire-retardant panel 200, and the notch groove 210 has a groove opening toward an inner layer pipe 300; the end of the inner bending sheet 301 has an extension section 310, and the extension sections 310 of the two inner bending sheets 301 are embedded into the notch groove 210 through the groove opening to form a fitting structure. In this way, the connection structure between the inner bending piece 301 and the fireproof plate 200 is reinforced by the two extension pieces 310 inserted into the notch groove 210.

Specifically, the two extension sections 310 are clamped in the notch 210, and are fixedly connected in a fitting manner. Thus, the two extending sections 310 are clamped, so that the extending sections 310 are not easy to disconnect from the notch 210, and the two extending sections 310 are fixedly connected, so that the whole structure is compact and the stability is better.

Referring to fig. 3 and 4, in the second embodiment, a groove 220 is formed on the inner side wall of the fireproof plate 200, two ends of one inner bending sheet 301 are provided with pressing sections 320, and the pressing sections 320 are embedded in the groove 220 and press against the ends of the other inner bending sheet 301 to form a fitting structure. The connection between the fireproof plate 200 and the inner bending piece 301 is reinforced by embedding the pressing section 320 into the groove 220, so that the whole structure is more stable.

Specifically, the pressing section 320 fills the groove 220; the pressing section 320 is fixedly connected with the end of the other inner bending sheet 301 in a fitting manner. Thus, the pressing section 320 is not easy to disconnect from the groove 220, and meanwhile, the pressing section 320 is fixedly connected with the end of the other inner bending sheet 301 in a fitting manner, so that the whole structure is more compact and more stable.

Referring to fig. 5, 6 and 7, in the third embodiment, one end of the inner bending sheet 301 is bent outward for multiple times to form a multi-section bending region; the multi-section bending region comprises a clamping part 340 and a bending part 330, wherein the clamping part 340 is provided with a clamping groove, and the length direction of the clamping groove is arranged in the same direction as the length direction of the inner-layer bending sheet 301; the other end of the inner bending piece 301 is bent outwards to form an embedded section; the embedded section of one inner bending sheet 301 is embedded into the clamping groove of the other inner bending sheet 301 to form an embedded structure. The connection between the two inner bending sheets 301 is very stable through the matching relationship between the clamping grooves and the embedded sections.

One end of the inner bending piece 301 is bent toward the smoke exhaust path 400 to form a bending portion 330. In this way, the bending portion 330 may be formed to provide a reinforcing effect to the clamping portion 340, similar to a reinforcing rib.

The bending part 330 is bent toward the fireproof plate 200 for a plurality of times to form a clamping part 340; the clamping part 340 comprises an inner side plate 341 arranged in the smoke exhaust channel 400 and an outer side plate 342 inserted into the fireproof plate 200, wherein the outer side plate 342 and the inner side plate 341 are enclosed to form a clamping groove; thus, the clamping groove is formed by surrounding the inner side plate 341 and the outer side plate 342, and the outer side plate 342 is inserted into the fireproof plate 200, so that the whole structure is more stable.

The inner side plate 341 is connected to the bending portion 330, the inner side plate 341 is connected to the outer side plate 342, and the inner side plate 341 is disposed between the bending portion 330 and the outer side plate 342 along a direction in which the middle portion of the inner side bending piece 301 faces the multi-stage bending region. Like this, interior curb plate 341 is held in the centre by kink 330 and outside board 342, and kink 330 plays the reinforcement effect, and outside board 342 is fixed to be inserted in PLASTIC LAMINATED 200, and the structure is comparatively firm.

The outer layer pipe 100 comprises two outer layer bending sheets 101 which are bent and oppositely arranged, wherein the two outer layer bending sheets 101 are circumferentially arranged and are enclosed to form the outer layer pipe 100; the end parts of the two inner bending sheets 301 are connected with each other to form two connecting structures;

One end of the outer-layer bending piece 101 is bent inward to form an insert 111 placed in the fireproof plate 200; the other end of the outer bending piece 101 protrudes toward the fireproof plate 200 to form a mounting section having a mounting groove 110; the insert 111 of one outer bending piece 101 is inserted into the mounting groove 110 of the other outer bending piece 101 to form a connection structure.

Through the outer bending pieces 101 of two bending shapes, the outer tube 100 is firmly formed through the cooperation between the cutting 111 and the mounting groove 110, so that the structure of the finished fireproof air duct is more stable and is not easy to collapse.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. The finished fireproof air duct is characterized by comprising a square outer layer pipe which is supported by a metal material, wherein fireproof plates which are arranged in a surrounding manner are attached to the inner side wall of the outer layer pipe; the inner side wall of the fireproof plate is adhered with a square inner layer pipe, and the inner layer pipe is enclosed to form a smoke exhaust channel; the fireproof plate is clamped between the outer layer pipe and the inner layer pipe;

The inner layer pipe comprises two inner layer bending sheets which are bent and oppositely arranged, the two inner layer bending sheets are circumferentially arranged and enclose to form the smoke exhaust channel, and the end parts of the two inner layer bending sheets are mutually connected to form two jogged structures.

2. A finished fire hose according to claim 1, wherein the fire protection plate has a notched slot therein, the notched slot having a slot opening towards the inner tube; the end parts of the inner-layer bending sheets are provided with extension sections, and the extension sections of the two inner-layer bending sheets are embedded into the notch grooves through groove openings to form the embedded structure.

3. A finished fire hose according to claim 2, wherein the two extension sections are held in the notched slot and are fixedly attached.

4. The finished fire-resistant air duct of claim 1, wherein the inner side walls of the fire-resistant panels are provided with grooves, and two ends of one of the inner bending sheets are provided with pressing sections, and the pressing sections are embedded in the grooves and pressed against the ends of the other inner bending sheet to form the embedded structure.

5. The finished fire hose of claim 4, wherein the abutment section fills the recess; the pressing section is fixedly connected with the end part of the other inner layer bending sheet in a fitting way.

6. The finished fire resistant air duct of claim 1 wherein one end of said inner bending tab is bent outwardly a plurality of times to form a multi-segment bending region; the multi-section bending area comprises a clamping part and a bending part, the clamping part is provided with a clamping groove, and the length direction of the clamping groove is arranged in the same direction as the length direction of the inner-layer bending piece; the other end part of the inner layer bending piece is bent outwards to form an embedded section; the embedded section of one inner layer bending sheet is embedded into the clamping groove of the other inner layer bending sheet to form the embedded structure.

7. The finished fire resistant air duct of claim 6, wherein one end of the inner bend is bent toward the smoke evacuation channel to form the bend.

8. The finished fire hose of claim 7, wherein the bent portion is bent toward the fire panel a plurality of times to form the clamping portion; the clamping part comprises an inner side plate arranged in the smoke exhaust channel and an outer side plate inserted into the fireproof plate, and the outer side plate and the inner side plate are enclosed to form the clamping groove.

9. The finished fire resistant air duct of claim 8 wherein said inner panel is connected to said bend, said inner panel is connected to said outer panel, and said inner panel is positioned between said bend and said outer panel along a direction of the middle of the inner bending sheet toward the multi-segment bend region.

10. A finished fire resistant ductwork according to any one of claims 1 to 9 wherein said outer duct includes two oppositely disposed outer folded sheets of a folded configuration, said outer folded sheets being circumferentially disposed and circumscribing to form an outer duct; the end parts of the two inner-layer bending sheets are connected with each other to form two connecting structures;

one end part of the outer bending piece is bent inwards to form an inserting strip arranged in the fireproof plate; the other end part of the outer bending piece protrudes towards the fireproof plate to form a mounting section, and the mounting section is provided with a mounting groove; the cutting of one outer bending piece is embedded into the mounting groove of the other outer bending piece, so that the connecting structure is formed.