Fireproof smoke prevention and exhaust air pipe

Abstract

The utility model discloses a fire-resistant smoke prevention and exhaust air duct, which relates to the technical field of smoke prevention and exhaust air ducts, and is characterized in that the fire-resistant smoke prevention and exhaust air duct comprises a plurality of smoke prevention and exhaust air duct bodies which are sequentially connected, each smoke prevention and exhaust air duct body comprises a galvanized steel plate, and a high-temperature-resistant rock wool plate, a ceramic fiber plate and a color steel plate are sequentially arranged outside each galvanized steel plate. The smoke prevention and exhaust air pipe body is rectangular and comprises a smoke exhaust cavity, a supporting frame is arranged in the smoke exhaust cavity, and the supporting frame is connected with the galvanized steel plate. The fire-resistant smoke prevention and exhaust air pipe has the advantages of being resistant to high temperature and not prone to deformation.

Description

Technical Field

[0001] The utility model relates to the field of smoke exhaust ducts, and more specifically, to a fire-resistant smoke exhaust duct. Background Art

[0002] The exhaust duct is part of the fire protection system. When a fire occurs, it can not only discharge the smoke in time to prevent the disaster-stricken people from inhaling a large amount of toxic smoke, but also play a role in delaying the spread of the fire. However, the existing exhaust duct is usually hollow. When a fire occurs in a house, the situation inside the house is complicated, and the hollow exhaust duct is prone to deformation. The deformed exhaust duct has a weakened ability to discharge smoke or even cannot discharge smoke, which reduces the chance of trapped people being rescued.

[0003] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a fire-resistant smoke exhaust duct, which solves the problem that the existing smoke exhaust duct is easily deformed.

[0005] The above-mentioned technical purpose of the utility model is achieved through the following technical scheme: the embodiment of the present application provides a fire-resistant smoke and exhaust air duct, comprising a plurality of smoke and exhaust air duct bodies connected in sequence, the smoke and exhaust air duct body comprising a galvanized steel plate, and high-temperature resistant rock wool board, ceramic fiber board and color steel plate are sequentially arranged outside the galvanized steel plate, the smoke and exhaust air duct body is arranged in a rectangular shape, the smoke and exhaust air duct body comprises a smoke exhaust cavity, a support frame is arranged in the smoke exhaust cavity, and the support frame is connected to the galvanized steel plate.

[0006] In one embodiment, the support frame is configured in a rhombus shape, and the four corners of the support frame are respectively fixed on the center lines of the four surfaces of the smoke exhaust duct body, and one group of symmetrical corners of the support frame are connected by a support plate.

[0007] In one of the embodiments, ventilation holes are provided on the support frame.

[0008] In one of the embodiments, a card slot is provided at one end of the smoke exhaust duct body, and a card block is provided at the other end of the smoke exhaust duct, and the card slot of one of the two adjacent smoke exhaust duct bodies can accommodate the card block of the other one.

[0009] In one of the embodiments, a first connecting block and a second connecting block are sequentially arranged on the outer wall of the smoke and exhaust duct body along the length direction of the smoke and exhaust duct body, and the second connecting block of the previous smoke and exhaust duct body in two adjacent smoke and exhaust ducts is connected to the first connecting block of the next smoke and exhaust duct body by bolts.

[0010] In one of the embodiments, a locking tooth is provided on the side wall of the blocking block, and a plurality of the locking teeth are provided along the length direction of the smoke exhaust duct body. The locking teeth are elastic, and a receiving groove matched with the locking tooth is provided in the blocking groove, and the two adjacent smoke exhaust duct bodies are connected by a buckle.

[0011] In summary, the utility model has the following beneficial effects: the utility model sets the inner layer of the smoke and exhaust duct body as a galvanized steel plate, sets the outer layer of the smoke and exhaust duct body as a color steel plate, and sets a high-temperature resistant rock wool board and a ceramic fiber board between the inner layer and the outer layer, so that the smoke and exhaust duct has a certain strength and good fire resistance and is not easy to burn. By setting a support frame connected to the galvanized steel plate in the smoke exhaust cavity, the support frame can support the smoke exhaust cavity, thereby improving the strength of the smoke and exhaust duct and avoiding the problem of deformation of the smoke and exhaust duct affecting the smoke exhaust effect during fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic structural diagram of the smoke exhaust duct body of an embodiment of the present application;

[0013] Figure 2 This is a schematic diagram of the connection structure of two adjacent smoke exhaust duct bodies in Example 1;

[0014] Figure 3 This is a schematic diagram of the connection structure of two adjacent smoke exhaust duct bodies in Example 2;

[0015] Figure 4 for Figure 3 A magnified view of part A;

[0016] Figure 5 This is a cross-sectional view of the smoke exhaust duct body of an embodiment of the present application.

[0017] In the figure: 1. smoke exhaust duct body; 11. galvanized steel plate; 12. high temperature resistant rock wool board; 13. ceramic fiber board; 14. color steel plate; 2. support frame; 21. support plate; 22. ventilation hole; 3. slot; 4. block; 5. first connecting block; 6. second connecting block; 7. bolt; 8. snap-on tooth; 9. buckle. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Embodiment 1:

[0020] like Figure 1 and Figure 5 As shown, an embodiment of the present application provides a fire-resistant smoke and exhaust air duct, comprising a plurality of smoke and exhaust air duct bodies 1 connected in sequence, wherein the smoke and exhaust air duct body 1 comprises a galvanized steel plate 11, and a high-temperature resistant rock wool board 12, a ceramic fiber board 13 and a color steel plate 14 are sequentially arranged outside the galvanized steel plate 11, and the smoke and exhaust air duct body 1 is arranged in a rectangular shape, and the smoke and exhaust air duct body 1 comprises a smoke exhaust cavity, and a support frame 2 is arranged in the smoke exhaust cavity, and the support frame 2 is connected to the galvanized steel plate 11.

[0021] The above-mentioned structure is arranged such that the inner layer of the smoke exhaust duct body 1 is set as a galvanized steel plate 11, the outer layer of the smoke exhaust duct body 1 is set as a color steel plate 14, and a high-temperature resistant rock wool board 12 and a ceramic fiber board 13 are arranged between the inner layer and the outer layer, so that the smoke exhaust duct has a certain strength and a good fire resistance effect and is not easy to burn. By arranging a support frame 2 connected to the galvanized steel plate 11 in the smoke exhaust cavity, the support frame 2 can support the smoke exhaust cavity, thereby improving the strength of the smoke exhaust duct and avoiding the problem of deformation of the smoke exhaust duct affecting the smoke exhaust effect during fire.

[0022] In this embodiment, Figure 1 As shown, the support frame 2 is configured in a rhombus shape, and the four corners of the support frame 2 are respectively fixed on the center lines of the four surfaces of the smoke exhaust duct body 1, and one set of symmetrical corners of the support frame 2 is connected by a support plate 21.

[0023] The above structure is arranged by setting the support frame 2 into a diamond shape, and the four corners of the support frame 2 are respectively fixed to the center lines of the four faces of the smoke and exhaust duct body 1, so that four triangles are formed between the four sides of the support frame 2 and the smoke and exhaust duct body 1, and the support plate 21 is connected between one set of symmetrical angles of the support frame 2, so that the support frame 2 forms two triangles. Through the arrangement of the support frame 2 and the support plate 21, the smoke exhaust cavity is divided into multiple triangles, thereby enhancing the stability of the smoke and exhaust duct body 1.

[0024] In this embodiment, Figure 1 As shown, the support frame 2 is provided with ventilation holes 22 .

[0025] The above structure is arranged so that the smoke exhaust effect of the smoke exhaust duct is ensured by arranging the ventilation holes 22 on the support frame 2 .

[0026] In this embodiment, Figure 1As shown, a slot 3 is provided at one end of the smoke exhaust duct body 1, and a block 4 is provided at the other end of the smoke exhaust duct. The slot 3 of one of the two adjacent smoke exhaust duct bodies 1 can accommodate the block 4 of the other one.

[0027] During operation, when connecting two adjacent smoke ducts, the clamping block 4 needs to be engaged with the clamping slot 3 first, so that the two adjacent smoke duct bodies 1 are tightly connected to prevent smoke leakage due to a gap between the two smoke ducts.

[0028] In this embodiment, Figure 2 As shown, a first connecting block 5 and a second connecting block 6 are sequentially arranged on the outer wall of the smoke and exhaust duct body 1 along the length direction of the smoke and exhaust duct body 1, and the second connecting block 6 of the front smoke and exhaust duct body 1 of two adjacent smoke and exhaust ducts is connected to the first connecting block 5 of the rear smoke and exhaust duct body 1 by bolts 7.

[0029] During operation, when connecting two adjacent smoke and exhaust duct bodies 1, it is only necessary to connect the second connecting block 6 of the previous smoke and exhaust duct body 1 with the first connecting block 5 of the subsequent smoke and exhaust duct body 1 through bolts 7. By connecting the two adjacent smoke and exhaust duct bodies 1 through the first connecting block 5 and the second connecting block 6, it is less likely to produce a gap at the end-to-end connection of the two adjacent smoke and exhaust duct bodies 1 compared to the end-to-end connection method.

[0030] Embodiment 2:

[0031] A fire-resistant smoke exhaust duct, such as Figure 3 and Figure 4 As shown, the difference from the first embodiment is that a locking tooth 8 is provided on the side wall of the blocking block 4, and a plurality of the locking teeth 8 are provided along the length direction of the smoke exhaust duct body 1, and the locking teeth 8 are elastic, and a receiving groove matched with the locking tooth 8 is provided in the slot 3, and the two adjacent smoke exhaust duct bodies 1 are connected by a buckle 9.

[0032] During operation, when connecting two smoke exhaust duct bodies 1, align the clamping block 4 with the clamping slot 3, and forcefully insert the clamping block 4 into the clamping slot 3. During the process, the engaging teeth 8 abut against the receiving slot and undergo elastic deformation until the engaging teeth 8 are completely engaged in the receiving slot. The engaging slot limits the engaging teeth 8, and then use the buckle 9 to connect and tighten the two smoke exhaust duct bodies 1.

[0033] Specifically, the buckle 9 includes a buckle body and a hook piece that are used together. The buckle body is provided at one end of the anti-smoke exhaust duct body 1, and the other end of the anti-smoke exhaust duct body 1 is provided with a hook piece. The buckle body and the hook piece of two adjacent anti-smoke exhaust duct bodies 1 are used together to fix the two anti-smoke exhaust duct bodies 1.

[0034] The above-mentioned structure is set up, and two adjacent smoke and exhaust duct bodies 1 are connected by a buckle 9, so that the connection between the smoke and exhaust duct bodies 1 is more convenient and quick. The clamping teeth 8 and the accommodating grooves are respectively set in the clamping block 4 and the clamping slot 3, which can improve the tightness of the connection between the two smoke and exhaust duct bodies 1 and the airtightness of the smoke and exhaust duct.

[0035] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A fire-resistant smoke exhaust duct, comprising a plurality of smoke exhaust duct bodies (1) connected in sequence, characterized in that: The smoke exhaust duct body (1) comprises a galvanized steel plate (11), and a high temperature resistant rock wool plate (12), a ceramic fiber plate (13) and a color steel plate (14) are sequentially arranged outside the galvanized steel plate (11). The smoke exhaust duct body (1) is arranged in a rectangular shape, and the smoke exhaust duct body (1) comprises a smoke exhaust cavity, and a support frame (2) is arranged in the smoke exhaust cavity, and the support frame (2) is connected to the galvanized steel plate (11).

2. The fire-resistant smoke exhaust duct according to claim 1, characterized in that: The support frame (2) is arranged in a rhombus shape, and the four corners of the support frame (2) are respectively fixed on the center lines of the four surfaces of the smoke exhaust duct body (1), and a group of symmetrical corners of the support frame (2) are connected via a support plate (21).

3. The fire-resistant smoke exhaust duct according to claim 1, characterized in that: The support frame (2) is provided with ventilation holes (22).

4. The smoke exhaust duct according to claim 1, characterized in that: A slot (3) is provided at one end of the smoke exhaust duct body (1), and a block (4) is provided at the other end of the smoke exhaust duct. The slot (3) of one of two adjacent smoke exhaust duct bodies (1) can accommodate the block (4) of the other.

5. The smoke exhaust duct according to claim 4, characterized in that: A first connecting block (5) and a second connecting block (6) are sequentially arranged on the outer wall of the smoke exhaust duct body (1) along the length direction of the smoke exhaust duct body (1); the second connecting block (6) of the first smoke exhaust duct body (1) of two adjacent smoke exhaust duct bodies (1) is connected to the first connecting block (5) of the second smoke exhaust duct body (1) by bolts (7).

6. The smoke exhaust duct according to claim 4, characterized in that: A snap-fitting tooth (8) is provided on the side wall of the clamping block (4), and a plurality of the snap-fitting teeth (8) are provided along the length direction of the smoke exhaust duct body (1). The snap-fitting tooth (8) is elastic, and a receiving groove matched with the snap-fitting tooth (8) is provided in the clamping groove (3). The two adjacent smoke exhaust duct bodies (1) are connected via a buckle (9).

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