Composite air pipe externally coated with fireproof plate

Abstract

The utility model belongs to the technical field of fireproof air pipes, and discloses a composite air pipe externally coated with fireproof plates, the composite air pipe comprises a first air pipe, a second air pipe is mounted on the side wall of the first air pipe, and a plurality of fireproof plates are fixedly arranged on the side walls of the first air pipe and the second air pipe; guide holes are symmetrically formed in the side wall, close to the second air pipe, of the first air pipe, guide rods are symmetrically arranged on the side wall, close to the first air pipe, of the second air pipe, the guide holes are matched with the guide rods, and a fixing device is jointly installed on the first air pipe and the second air pipe. The device has the effect of reducing the working difficulty of workers.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof air ducts, and particularly relates to a composite air duct with a fireproof board wrapped on the outer side. Background Art

[0002] An air duct is a common indoor and outdoor air circulation facility, and its structure generally includes a main air duct, a sub-air duct, and a fan. Among them, the fan is generally arranged on the sub-air duct to ensure that multiple areas in the room can obtain ventilation effects independently and adjustably. On the other hand, compared with ordinary air ducts, the biggest difference of the existing common fireproof air ducts is that the former generally has a fireproof board wrapped on its surface, including fireproof gypsum boards, calcium silicate fiber boards, and perlite boards, etc.

[0003] Regarding the above related technologies, the inventor believes that there are the following defects: When the existing air ducts are connected, they are fixed by bolts and nuts. During the fixing process, the staff needs to align the fixing holes of the air ducts before installing the bolts and nuts. However, the installation location of the air ducts is relatively high, which makes it difficult for the staff to install. Summary of the Utility Model

[0004] In order to solve the above problems, the utility model provides a composite air duct with a fireproof board wrapped on the outer side.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: A composite air duct with a fireproof board wrapped on the outer side includes a first air duct. A second air duct is installed on the side wall of the first air duct. A plurality of fireproof boards are fixedly arranged on the side walls of the first air duct and the second air duct. Guide holes are symmetrically opened on the side wall of the first air duct close to the second air duct. Guide rods are symmetrically arranged on the side wall of the second air duct close to the first air duct. The guide holes and the guide rods are mutually matched. A fixing device is commonly installed on the first air duct and the second air duct.

[0006] By adopting the above technical solutions, when the staff needs to connect the first air duct and the second air duct, the staff needs to insert the guide rods into the guide holes, so that the side wall of the first air duct abuts against the side wall of the second air duct. Subsequently, the staff needs to start the fixing device to fix the first air duct and the second air duct. During this process, the guide rods and the fixing device reduce the difficulty of the staff in installing the first air duct and the second air duct, thereby reducing the working difficulty of the staff.

[0007] Furthermore, the fixing device includes a first U-shaped member installed on the first air duct and the second air duct. A chute is opened on the bottom surface of the first U-shaped member. The fixing device further includes a second U-shaped member installed on the bottom surface of the first U-shaped member and a sliding rod slidably arranged in the chute. The sliding rod is fixedly connected with the second U-shaped member.

[0008] Further, an installation groove is formed in the inner wall of the sliding groove, an installation plate is slidably arranged in the installation groove, a plurality of limiting grooves are arrayed and formed in the side wall of the sliding rod close to the installation plate, a plurality of fixing blocks are arrayed and distributed on the side wall of the installation plate close to the limiting grooves, and the fixing blocks are slidably connected with the limiting grooves.

[0009] By adopting the above technical solution, when the staff needs to fix the first air duct and the second air duct to each other, the staff needs to sleave the first U-shaped piece on the first air duct and the second air duct. Subsequently, the staff sleaves the second U-shaped piece on the first air duct and the second air duct. During this process, the sliding rod slides into the sliding groove. When the side walls of the first U-shaped piece and the second U-shaped piece are in contact, the staff needs to slide the installation plate in the direction close to the sliding rod, so that the fixing blocks slide synchronously with the installation plate under the action of the installation plate, so that one end of the fixing block slides into the limiting groove, thereby fixing the sliding rod, and thus the first U-shaped piece and the second U-shaped piece fix the first air duct and the second air duct.

[0010] Further, a plurality of fixing grooves are arrayed and formed in the side wall of the installation plate close to the limiting grooves, the plurality of fixing blocks are respectively slidably connected with the plurality of fixing grooves, first springs are fixedly arranged on the side walls of the plurality of fixing blocks far away from the limiting grooves, the other ends of the plurality of first springs are respectively fixedly arranged on the inner walls of the adjacent fixing grooves, and first inclined surfaces are formed on the edges where the bottom surfaces of the plurality of fixing blocks intersect with the side walls far away from the first springs.

[0011] By adopting the above technical solution, when the staff slides the sliding rod into the sliding groove, the sliding rod gradually approaches and finally abuts against the first inclined surface, so that the fixing block slides into the fixing groove under the action of the sliding rod. Subsequently, when the side walls of the first U-shaped piece and the second U-shaped piece are in contact, one end of the fixing block slides into the limiting groove under the action of the first spring, thereby reducing the difficulty for the staff to slide one end of the fixing block into the limiting groove, and thus reducing the working difficulty of the staff.

[0012] Further, a bolt is threadedly penetrated through the side wall of the first U-shaped piece, and the bolt is rotatably connected with the installation plate.

[0013] By adopting the above technical solution, when one end of the fixing block slides into the limiting groove under the action of the first spring, the staff needs to rotate the bolt, so that the installation plate slides in the direction close to the sliding rod under the action of the bolt, so that the side wall of the installation plate abuts against the side wall of the sliding rod, thereby reducing the probability that the fixing block is separated from the limiting groove by external force, and thus improving the stability of the device.

[0014] Further, a chamfer is formed in the side wall of the guide rod far away from the second air duct.

[0015] By adopting the above technical solution, the chamfer reduces the difficulty for the staff to slide the guide rod into the guide hole, thereby reducing the work difficulty of the staff.

[0016] Further, the fireproof board is a fireproof board made of magnesium oxychloride fireproof board.

[0017] By adopting the above technical solution, the fireproof board made of magnesium oxychloride fireproof board has good fire resistance, thereby reducing the probability of the air duct being burned.

[0018] In summary, the utility model has the following beneficial effects:

[0019] 1. In this application, when the staff needs to connect the first air duct and the second air duct, the staff needs to insert the guide rod into the guide hole, so that the side wall of the first air duct abuts against the side wall of the second air duct. Subsequently, the staff needs to start the fixing device to fix the first air duct and the second air duct. During this process, the guide rod and the fixing device reduce the difficulty for the staff to install the first air duct and the second air duct, thereby reducing the work difficulty of the staff;

[0020] 2. In this application, when the staff needs to fix the first air duct and the second air duct, the staff needs to put the first U-shaped piece on the first air duct and the second air duct. Subsequently, the staff puts the second U-shaped piece on the first air duct and the second air duct. During this process, the sliding rod slides into the sliding groove. When the side walls of the first U-shaped piece and the second U-shaped piece abut against each other, the staff needs to slide the mounting plate in the direction close to the sliding rod, so that the fixing block slides synchronously with the mounting plate under the action of the mounting plate, so that one end of the fixing block slides into the limiting groove, thereby fixing the sliding rod, so that the first U-shaped piece and the second U-shaped piece fix the first air duct and the second air duct;

[0021] 3. In this application, when the staff slides the sliding rod into the sliding groove, the sliding rod gradually approaches and finally abuts against the first inclined surface, so that the fixing block slides into the fixing groove under the action of the sliding rod. Subsequently, when the side walls of the first U-shaped piece and the second U-shaped piece abut against each other, one end of the fixing block slides into the limiting groove under the action of the first spring, thereby reducing the difficulty for the staff to slide one end of the fixing block into the limiting groove, thereby reducing the work difficulty of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the overall structural schematic diagram of the embodiment of the utility model;

[0023] Figure 2 is the sectional structural schematic diagram of the first air duct and the second air duct in the embodiment of the utility model;

[0024] Figure 3It is a schematic cross-sectional structure diagram of the fixing device in the embodiment of the present utility model;

[0025] Figure 4 is an embodiment of the present utility model Figure 3 Schematic cross-sectional structure diagram of A in.

[0026] In the figure: 1, the first air duct; 11, the second air duct; 12, the fireproof board; 13, the guide rod; 2, the guide hole; 21, the chute; 22, the installation groove; 23, the limiting groove; 24, the fixing groove; 3, the fixing device; 31, the first U-shaped member; 32, the second U-shaped member; 33, the sliding rod; 4, the mounting plate; 41, the fixing block; 5, the first spring; 51, the first inclined surface; 6, the bolt; 7, the chamfer. Specific implementation mode

[0027] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0028] As Figures 1-4 shown, the embodiment of the present application discloses a composite air duct with an outer fireproof board covering, including a first air duct 1, a second air duct 11, a fireproof board 12, a guide rod 13, a fixing device 3, a mounting plate 4, a fixing block 41, a first spring 5, and a bolt 6. The first air duct 1 is a rectangular tubular structure, the second air duct 11 is a rectangular tubular structure, and the second air duct 11 is installed on the side wall of the first air duct 1. A plurality of fireproof boards 12 are provided and are respectively fixedly arranged on a plurality of first air ducts 1 and second air ducts 11, and guide holes 2 are symmetrically opened on the side wall of the first air duct 1 close to the second air duct 11. Two guide rods 13 are provided and are symmetrically arranged on the side wall of the second air duct 11 close to the first air duct 1, and the guide holes 2 and the guide rods 13 are mutually matched.

[0029] When the staff needs to connect the first air duct 1 and the second air duct 11, the staff needs to insert the guide rod 13 into the guide hole 2, so that the side wall of the first air duct 1 is in contact with the side wall of the second air duct 11. Subsequently, the staff needs to start the fixing device 3 to fix the first air duct 1 and the second air duct 11. During this process, the guide rod 13 and the fixing device 3 reduce the difficulty of the staff in installing the first air duct 1 and the second air duct 11, thereby reducing the work difficulty of the staff.

[0030] The fixing device 3 is installed on the first air duct 1 and the second air duct 11. The fixing device 3 includes a first U-shaped member 31, a second U-shaped member 32, and a sliding rod 33. The cross-section of the first U-shaped member 31 is U-shaped. The first U-shaped member 31 is installed on the first air duct 1 and the second air duct 11, and a sliding groove 21 is formed on the bottom surface of the first U-shaped member 31. The cross-section of the second U-shaped member 32 is U-shaped. The second U-shaped member 32 is installed on the bottom surface of the first U-shaped member 31. The sliding rod 33 is a rectangular rod-shaped structure, and the sliding rod 33 is slidably arranged in the sliding groove 21, and the sliding rod 33 is fixedly connected to the second U-shaped member 32.

[0031] An installation groove 22 is formed on the inner wall of the sliding groove 21. The installation plate 4 is a rectangular plate-shaped structure. The installation plate 4 is slidably arranged in the sliding groove 21. A plurality of limiting grooves 23 are arranged in an array on the side wall of the sliding rod 33 close to the installation plate 4. The fixing block 41 is a rectangular block-shaped structure. A plurality of fixing blocks 41 are provided and arranged in an array on the side wall of the installation plate 4 close to the limiting grooves 23, and the fixing block 41 is slidably connected to the limiting groove 23.

[0032] When the staff needs to fix the first air duct 1 and the second air duct 11 to each other, the staff needs to put the first U-shaped member 31 on the first air duct 1 and the second air duct 11. Subsequently, the staff puts the second U-shaped member 32 on the first air duct 1 and the second air duct 11. During this process, the sliding rod 33 slides into the sliding groove 21. When the side walls of the first U-shaped member 31 and the second U-shaped member 32 are in contact, the staff needs to slide the installation plate 4 in the direction close to the sliding rod 33, so that the fixing block 41 synchronously slides with the installation plate 4 under the action of the installation plate 4, so that one end of the fixing block 41 slides into the limiting groove 23, thereby fixing the sliding rod 33, and thus the first U-shaped member 31 and the second U-shaped member 32 fix the first air duct 1 and the second air duct 11.

[0033] A plurality of fixing grooves 24 are arranged in an array on the side wall of the installation plate 4 close to the limiting grooves 23. The plurality of fixing blocks 41 are respectively slidably connected to the plurality of fixing grooves 24. A plurality of first springs 5 are provided. One ends of the plurality of first springs 5 are respectively fixedly arranged on the inner walls of the plurality of fixing blocks 41 away from the limiting grooves 23. The other ends of the plurality of first springs 5 are respectively fixedly arranged on the inner walls close to the fixing grooves 24. First inclined surfaces 51 are formed on the edges where the bottom surfaces of the plurality of fixing blocks 41 intersect with the side walls away from the first springs 5.

[0034] When the staff slides the sliding rod 33 into the sliding groove 21, the sliding rod 33 gradually approaches and finally abuts against the first inclined surface 51, so that the fixed block 41 slides into the fixing groove 24 under the action of the sliding rod 33. Subsequently, when the side walls of the first U-shaped member 31 and the second U-shaped member 32 are in contact, one end of the fixed block 41 slides into the limiting groove 23 under the action of the first spring 5, thereby reducing the difficulty for the staff to slide one end of the fixed block 41 into the limiting groove 23, and thus reducing the working difficulty of the staff.

[0035] The bolt 6 is threadedly penetrated through the side wall of the first U-shaped member 31, its axis is horizontal, and the bolt 6 is rotatably connected to the mounting plate 4.

[0036] When one end of the fixed block 41 slides into the limiting groove 23 under the action of the first spring 5, the staff needs to rotate the bolt 6, so that the mounting plate 4 slides in the direction close to the sliding rod 33 under the action of the bolt 6, so that the side wall of the mounting plate 4 abuts against the side wall of the sliding rod 33, thereby reducing the probability that the fixed block 41 is separated from the limiting groove 23 by an external force, and thus improving the stability of the device.

[0037] In order to reduce the working difficulty of the staff, a chamfer 7 is provided on the side wall of the guide rod 13 away from the second air duct 11. The chamfer 7 reduces the difficulty for the staff to slide the guide rod 13 into the guide hole 2, thereby reducing the working difficulty of the staff.

[0038] In order to reduce the probability of the air duct being burned, the fireproof board 12 is a fireproof board 12 made of magnesium oxychloride fireproof board. The fireproof board 12 made of magnesium oxychloride fireproof board has good fire resistance, thereby reducing the probability of the air duct being burned.

[0039] The working principle of a composite air duct with an outer fireproof board in this embodiment is as follows: when the staff needs to connect the first air duct 1 and the second air duct 11, the staff needs to insert the guide rod 13 into the guide hole 2. Subsequently, the staff needs to put the first U-shaped member 31 on the first air duct 1 and the second air duct 11. Then, the staff puts the second U-shaped member 32 on the first air duct 1 and the second air duct 11. During this process, the sliding rod 33 slides into the sliding groove 21. When the side walls of the first U-shaped member 31 and the second U-shaped member 32 are in contact, the staff needs to slide the mounting plate 4 in the direction close to the sliding rod 33, so that the fixed block 41 slides synchronously with the mounting plate 4 under the action of the mounting plate 4, so that one end of the fixed block 41 slides into the limiting groove 23, thereby fixing the sliding rod 33, so that the first U-shaped member 31 and the second U-shaped member 32 fix the first air duct 1 and the second air duct 11.

[0040] The above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as within the protection scope of the present utility model.

Claims

1. A composite air duct covered with a fireproof board, comprising a first air duct (1), characterized in that: A second air duct (11) is installed on the side wall of the first air duct (1); a plurality of fireproof panels (12) are fixedly installed on the side walls of the first air duct (1) and the second air duct (11); guide holes (2) are symmetrically opened on the side wall of the first air duct (1) close to the second air duct (11); guide rods (13) are symmetrically arranged on the side wall of the second air duct (11) close to the first air duct (1); the guide holes (2) and the guide rods (13) match each other; and a fixing device (3) is installed on the first air duct (1) and the second air duct (11) together.

2. The composite air duct covered with a fireproof board according to claim 1 is characterized in that: The fixing device (3) comprises a first U-shaped member (31) mounted on the first air duct (1) and the second air duct (11), wherein a slide groove (21) is provided on the bottom surface of the first U-shaped member (31), and the fixing device (3) further comprises a second U-shaped member (32) mounted on the bottom surface of the first U-shaped member (31) and a slide rod (33) slidably arranged in the slide groove (21), wherein the slide rod (33) and the second U-shaped member (32) are fixed to each other.

3. The composite air duct covered with a fireproof board according to claim 2 is characterized in that: A mounting groove (22) is provided on the inner wall of the slide groove (21), a mounting plate (4) is slidably arranged in the mounting groove (22), a plurality of limiting grooves (23) are arranged in an array on the side wall of the slide rod (33) close to the mounting plate (4), a plurality of fixing blocks (41) are arranged in an array on the side wall of the mounting plate (4) close to the limiting groove (23), and the fixing blocks (41) are slidably connected to the limiting groove (23).

4. The composite air duct covered with a fireproof board according to claim 3 is characterized in that: A plurality of fixing grooves (24) are arranged in an array on the side wall of the mounting plate (4) close to the limiting groove (23); a plurality of fixing blocks (41) are respectively slidably connected to the plurality of fixing grooves (24); a first spring (5) is fixedly arranged on the side wall of the plurality of fixing blocks (41) away from the limiting groove (23); the other ends of the plurality of first springs (5) are respectively fixedly arranged on the inner wall adjacent to the fixing groove (24); and a first inclined surface (51) is arranged on the edge where the bottom surface of the plurality of fixing blocks (41) intersects with the side wall away from the first spring (5).

5. The composite air duct covered with a fireproof board according to claim 2 is characterized in that: A bolt (6) is threadedly provided on the side wall of the first U-shaped member (31), and the bolt (6) is rotatably connected to the mounting plate (4).

6. The composite air duct covered with a fireproof board according to claim 1 is characterized in that: A chamfer (7) is provided on the side wall of the guide rod (13) away from the second air duct (11).

7. The composite air duct covered with a fireproof board according to claim 1 is characterized in that: The fireproof board (12) is a fireproof board (12) made of a glass magnesium fireproof board.

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