A composite air duct with floating bead fireproof board

Abstract

The present application belongs to the technical field of composite air ducts, and discloses a composite air duct with a floating bead fireproof board, comprising an air duct body, four side walls of the air duct body are provided with fireproof boards, two adjacent fireproof boards are jointly installed with a first angle steel, the first angle steel and the fireproof board are fixed to each other by nails, and a docking assembly for docking the air duct body is provided on the air duct body. The present application has the effect of reducing the use cost of the fireproof board.

Description

Technical Field

[0001] The utility model relates to the technical field of composite air ducts, in particular to a composite air duct with a floating bead fireproof board. Background Art

[0002] The air duct is a common indoor and outdoor air circulation facility, and its structure generally includes a main air duct, an auxiliary air duct, and a fan. Among them, the fan is generally installed on the auxiliary air duct to ensure that multiple areas in the room can obtain ventilation effects independently and adjustable. On the other hand, the biggest difference between the existing common fireproof air duct and the ordinary air duct is that the surface of the former is generally covered with fireproof board, including fireproof gypsum board, calcium silicate fiberboard, and perlite board.

[0003] A Chinese utility model patent with the announcement number CN217519397U discloses a composite air duct, including an air duct body, a fireproof component is arranged outside the air duct body, the fireproof component is used to surround and seal the outer wall of the air duct body, and the fireproof component includes a fireproof board, which is a magnesium oxysulfide board. This application can improve the fire resistance of the air duct.

[0004] With respect to the above-mentioned related technologies, the inventor believes that there are the following defects: the above-mentioned device connects the first fireproof board and the second fireproof board to each other by connecting the connecting block on the first fireproof board and the clamping block on the second fireproof board to each other, thereby making the first fireproof board and the second fireproof board cooperate with each other and protect the air duct body. Since the main materials of the fireproof board are mostly fireproof gypsum board, calcium silicate fiberboard and perlite board, in order to install structures such as clamping blocks, hard structures such as iron plates need to be set at the edges of the fireproof board during factory production, which is complicated to operate and has high costs. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a composite air duct with a floating bead fireproof board.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A composite air duct with a floating bead fireproof board comprises an air duct body, wherein the four side walls of the air duct body are provided with fireproof boards, a first angle steel is commonly installed on two adjacent fireproof boards, the first angle steel and the fireproof board are fixed to each other by nails, and a docking assembly for docking the air duct body is provided on the air duct body.

[0008] By adopting the above technical solution, when the staff needs to install the composite air duct, the staff needs to connect the side walls of the composite air duct of the insulation board to each other, and respectively make the four fireproof boards press against the four side walls of the insulation board, so that the fireproof board can be initially stabilized. Afterwards, the staff needs to connect the four first angle steels with the fireproof board to each other, and then fix the fireproof board by nailing, without the need for additional modification of the fireproof board, and the installation difficulty is relatively low, and the user experience is good.

[0009] Furthermore, a heat preservation plate is arranged between the air duct body and the fireproof plate.

[0010] Furthermore, four corners of the insulation board are provided with mounting grooves, and second angle steels are arranged in the mounting grooves.

[0011] By adopting the above technical solution, the second angle steel increases the force between the insulation board and the side wall of the duct body, thereby improving the stability of the insulation board, thereby reducing the probability of leaving a gap between the insulation board and the side wall of the duct body, and thus improving the insulation effect of the insulation board.

[0012] Furthermore, the docking assembly includes a first annular plate fixed on one side of the air duct body, a second annular plate fixed on the other side of the air duct body, a connecting rod fixed on the side wall of the first annular plate, and a threaded rod arranged on the upper surface of the second annular plate, and the side wall of the connecting rod is provided with a threaded hole matching the threaded rod, and the side wall of the second annular plate away from the air duct body is provided with a limiting groove matching the connecting rod.

[0013] By adopting the above technical solution, when the staff needs to connect two air duct bodies, the staff only needs to connect the connecting rod on one of the air duct bodies with the limiting groove on the other air duct body, so that the first annular plate can be pressed against the second annular plate. Furthermore, the staff only needs to rotate the threaded rod to connect the threaded rod with the threaded hole on the connecting rod, thereby keeping the two air duct bodies stable.

[0014] Furthermore, a fixing groove is provided on the side wall of the connecting rod, an inclined surface is provided on the inner wall of the fixing groove away from the first annular plate, and a screw is threadedly connected to the side wall of the second annular plate.

[0015] By adopting the above technical solution, when the staff needs to connect two air duct bodies, the staff only needs to connect the connecting rod on one of the air duct bodies with the limiting grooves on the other air duct bodies, and rotate the screw to make the screw press against the inclined surface, thereby reducing the probability of the two air duct bodies moving away from each other at this time, thereby reducing the difficulty for the staff to connect the threaded rod and the threaded hole at this time.

[0016] Furthermore, an annular groove is provided on the side wall of the second annular plate, a fireproof glass plate is arranged in the annular groove, and the threaded rod penetrates the fireproof glass plate and is loosely fitted therein.

[0017] By adopting the above technical solution, the staff can directly look at the threaded hole through the fireproof glass plate, thereby further reducing the difficulty for the staff to connect the threaded rod and the threaded hole to each other.

[0018] Furthermore, a fire retardant coating layer is provided on the side walls of the first annular plate and the second annular plate.

[0019] Furthermore, the insulation board is made of polyurethane foam.

[0020] By adopting the above technical solution, the polyurethane foam has a good thermal insulation effect, thereby improving the thermal insulation effect of the thermal insulation board and further reducing the heat loss of the air duct body.

[0021] In summary, the utility model has the following beneficial effects:

[0022] 1. In this application, when the staff needs to install the composite air duct, the staff needs to connect the side walls of the composite air duct of the insulation board to each other, and respectively make the four fireproof boards close to the four side walls of the insulation board, so that the fireproof board can be initially stabilized. Afterwards, the staff needs to connect the four first angle steels with the fireproof board to each other, and then fix the fireproof board by nailing, without the need for additional modification of the fireproof board, and the installation difficulty is relatively low, and the user experience is better;

[0023] 2. In the present application, the second angle steel increases the force between the insulation board and the side wall of the duct body, thereby improving the stability of the insulation board, thereby reducing the probability of a gap between the insulation board and the side wall of the duct body, thereby improving the insulation effect of the insulation board;

[0024] 3. In this application, when the staff needs to connect two air duct bodies, the staff needs to connect the connecting rod on one of the air duct bodies with the limiting grooves on the other air duct bodies, so that the first annular plate can be pressed against the second annular plate. Furthermore, the staff only needs to rotate the threaded rod to connect the threaded rod with the threaded hole on the connecting rod, thereby keeping the two air duct bodies stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0026] Figure 2 This is a schematic diagram of the second annular plate and its connection structure in an embodiment of the utility model;

[0027] Figure 3This is a schematic diagram of a threaded rod and its connection structure in an embodiment of the utility model;

[0028] Figure 4 It is a schematic diagram of the limiting groove and its connection structure of an embodiment of the utility model.

[0029] In the figure: 1. Duct body; 11. Fireproof board; 2. First angle steel; 3. Docking assembly; 31. First annular plate; 32. Second annular plate; 33. Connecting rod; 34. Threaded rod; 35. Threaded hole; 36. Limiting groove; 4. Insulation board; 41. Placement groove; 5. Second angle steel; 6. Fixing groove; 61. Screw; 7. Annular groove; 8. Fireproof glass plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0031] like Figure 1-4 As shown, the embodiment of the present application discloses a composite air duct with a floating bead fireproof board, including an air duct body 1, a fireproof board 11, a first angle steel 2, a docking assembly 3, an insulation board 4, a second angle steel 5, a screw 61 and a fireproof glass board 8. The fireproof board 11 is a plate-like structure, and four fireproof boards 11 are provided and respectively arranged on the four side walls of the air duct body 1. Four first angle steels 2 are provided and are respectively connected to two adjacent fireproof boards 11, and the first angle steel 2 and the fireproof board 11 are fixed to each other by nailing.

[0032] The docking assembly 3 is arranged on the air duct body 1 and is used for docking the air duct body 1. The docking assembly 3 includes a first annular plate 31, a second annular plate 32, a connecting rod 33 and a threaded rod 34. The first annular plate 31 is a plate-like structure with a square annular cross section, and the first annular plate 31 is fixed to one side of the air duct body 1. The second annular plate 32 is a plate-like structure with a square annular cross section, and the second annular plate 32 is fixed to the other side of the air duct body 1. The connecting rod 33 is a rectangular rod-like structure, and the connecting rod 33 is fixed to the side wall of the first annular plate 31. The threaded rod 34 is arranged on the upper surface of the second annular plate 32, and a threaded hole 35 matching the threaded rod 34 is provided on the side wall of the connecting rod 33, and a limiting groove 36 matching the connecting rod 33 is provided on the side wall of the second annular plate 32 away from the air duct body 1.

[0033] When the staff needs to connect the two duct bodies 1, the staff needs to connect the connecting rod 33 on one of the duct bodies 1 with the limiting groove 36 on the other duct body 1, so that the first annular plate 31 can be pressed against the second annular plate 32. Furthermore, the staff only needs to rotate the threaded rod 34 to connect the threaded rod 34 with the threaded hole 35 on the connecting rod 33, thereby keeping the two duct bodies 1 stable.

[0034] The insulation board 4 is a plate-like structure, and is arranged between the air duct body 1 and the fireproof board 11, and is made of polyurethane foam. The polyurethane foam has a good insulation effect, thereby improving the insulation effect of the insulation board 4, and further reducing the heat loss of the air duct body 1.

[0035] The four corners of the insulation board 4 are provided with placement grooves 41, and the second angle steel 5 is arranged in the placement grooves 41. The second angle steel 5 increases the force between the insulation board 4 and the side wall of the air duct body 1, thereby improving the stability of the insulation board 4, thereby reducing the probability of a gap between the insulation board 4 and the side wall of the air duct body 1, thereby improving the insulation effect of the insulation board 4.

[0036] A fixing groove 6 is provided on the side wall of the connecting rod 33, and an inclined surface is provided on the inner wall of the fixing groove 6 away from the first annular plate 31, and the screw rod 61 is threadedly connected to the side wall of the second annular plate 32. When the staff needs to connect two air duct bodies 1, the staff only needs to connect the connecting rod 33 on one of the air duct bodies 1 with the limiting groove 36 on the other air duct body 1, and rotate the screw rod 61, so that the screw rod 61 can be pressed against the inclined surface, thereby reducing the probability of the two air duct bodies 1 moving away from each other at this time, thereby reducing the difficulty for the staff to connect the threaded rod 34 with the threaded hole 35 at this time.

[0037] An annular groove 7 is provided on the side wall of the second annular plate 32. The fireproof glass plate 8 is a plate-shaped structure with a square annular cross section. The fireproof glass plate 8 is arranged in the annular groove 7, and the threaded rod 34 passes through the fireproof glass plate 8 and is loosely fitted.

[0038] The staff can directly see the threaded hole 35 through the fireproof glass plate 8, thereby further reducing the difficulty for the staff to connect the threaded rod 34 and the threaded hole 35 to each other.

[0039] In order to extend the service life of the first annular plate 31 and the second annular plate 32 , a fire retardant coating layer (not shown in the figure) is provided on the side walls of the first annular plate 31 and the second annular plate 32 .

[0040] The use principle of a composite air duct with a floating bead fireproof board 11 in this embodiment is:

[0041] When the staff needs to install the composite air duct, the staff needs to connect the side walls of the composite air duct of the insulation board 4 to each other, and respectively make the four fireproof boards 11 close to the four side walls of the insulation board 4, so that the fireproof board 11 can be initially stabilized. Subsequently, the staff needs to connect the four first angle steels 2 with the fireproof board 11 to each other, and the fireproof board 11 can be fixed by nailing, without the need for additional modification of the fireproof board 11, and the installation difficulty is relatively low, and the use experience is better.

[0042] 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 composite air duct with a floating bead fireproof board, comprising an air duct body (1), characterized in that: Fireproof panels (11) are provided on the four side walls of the air duct body (1), and a first angle steel (2) is installed on two adjacent fireproof panels (11). The first angle steel (2) and the fireproof panels (11) are fixed to each other by nailing, and a docking assembly (3) for docking the air duct body (1) is provided on the air duct body (1).

2. The composite air duct with floating bead fireproof board according to claim 1 is characterized by: A heat preservation plate (4) is arranged between the air duct body (1) and the fireproof plate (11).

3. The composite air duct with floating bead fireproof board according to claim 2 is characterized by: The four corners of the thermal insulation board (4) are each provided with a placement groove (41), and a second angle steel (5) is arranged in the placement groove (41).

4. The composite air duct with floating bead fireproof board according to claim 3 is characterized by: The docking assembly (3) comprises a first annular plate (31) fixed on one side of the air duct body (1), a second annular plate (32) fixed on the other side of the air duct body (1), a connecting rod (33) fixed on the side wall of the first annular plate (31), and a threaded rod (34) arranged on the upper surface of the second annular plate (32); a threaded hole (35) matching the threaded rod (34) is provided on the side wall of the connecting rod (33); and a limiting groove (36) matching the connecting rod (33) is provided on the side wall of the second annular plate (32) away from the air duct body (1).

5. The composite air duct with floating bead fireproof board according to claim 4 is characterized in that: A fixing groove (6) is provided on the side wall of the connecting rod (33), an inclined surface is provided on the inner wall of the fixing groove (6) away from the first annular plate (31), and a screw rod (61) is threadedly connected to the side wall of the second annular plate (32).

6. The composite air duct with floating bead fireproof board according to claim 5 is characterized by: An annular groove (7) is provided on the side wall of the second annular plate (32), a fireproof glass plate (8) is arranged in the annular groove (7), and the threaded rod (34) penetrates the fireproof glass plate (8) and is loosely fitted therein.

7. The composite air duct with floating bead fireproof board according to claim 6 is characterized by: A fire retardant coating layer is provided on the side walls of the first annular plate (31) and the second annular plate (32).

8. The composite air duct with floating bead fireproof board according to claim 2 is characterized by: The thermal insulation board (4) is a thermal insulation board (4) made of polyurethane foam.

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