Fireproof and heat-insulation composite air pipe

Abstract

The utility model discloses a fireproof heat insulation composite air pipe, and relates to the technical field of air pipes. The fireproof heat insulation composite air pipe comprises a first air pipe, a connecting transverse plate and a movable limiting plate, and a second air pipe is arranged on one side of the first air pipe; two sets of connecting limiting rods are arranged on the connecting transverse plate and used for connecting the first air pipe and the second air pipe. According to the fireproof heat-insulation composite air pipe, through the arrangement of the connecting transverse plate and the connecting limiting rod, the first air pipe and the second air pipe can be rapidly connected, through the connecting mode, operation of workers is facilitated, the connecting time of the first air pipe and the second air pipe is shortened, and through the arrangement of the movable limiting plate, the fireproof heat-insulation effect is improved. And the connecting limiting rod can be subjected to limiting treatment, so that the situation that the connecting limiting rod is disengaged from the first air pipe and the second air pipe when the first air pipe and the second air pipe are used is avoided, and then the stability of the first air pipe and the second air pipe after installation can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air ducts, and particularly relates to a fireproof and heat-insulating composite air duct. Background Technique

[0002] An air duct is a duct system used for air transportation and distribution. There are two types: composite air ducts and inorganic air ducts, which can be classified according to cross-sectional shape and material. The production of stainless steel air ducts involves applying sealant (such as neutral silicone sealant) at the joints such as the seam of the bite, the rivet seam, and the four corners of the flange turn-up. Before applying the sealant, the surface dust and oil should be removed. According to the cross-sectional shape, the air ducts can be divided into various types such as circular air ducts, rectangular air ducts, and oval air ducts. Among them, the circular air duct has the least resistance but the largest height dimension and is complex to manufacture, so rectangular air ducts are mainly used in applications. According to the material, the air ducts can be divided into metal air ducts, composite air ducts, and polymer air ducts.

[0003] At present, when connecting some air ducts, bolts and nuts are mostly used for connection. Such a connection method not only increases the installation time of workers, but also makes it difficult for workers to disassemble the bolts and nuts when the bolts or nuts rust, which is not conducive to subsequent disassembly and assembly, and the practicality of the connection method is relatively low. Content of the Utility Model

[0004] The purpose of the utility model is to provide a fireproof and heat-insulating composite air duct, which can solve the problems that the connection method of bolts and nuts not only increases the installation time of workers, but also makes it difficult for workers to disassemble the bolts and nuts when the bolts or nuts rust.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A fireproof and heat-insulating composite air duct, including a first air duct, a connecting cross plate, and a movable limiting plate. A second air duct is provided on one side of the first air duct;

[0006] Two groups of connecting limiting rods are provided on the connecting cross plate, and the two groups of connecting limiting rods are used to connect the first air duct and the second air duct;

[0007] Movable limiting plates are provided on both the first air duct and the second air duct, and the movable limiting plates are used to limit the connecting limiting rods.

[0008] Preferably, filter nets are fixedly installed on the inner walls of the first air duct and the second air duct.

[0009] Preferably, a connecting limiting rod is fixedly installed at the bottom of the connecting cross plate.

[0010] Preferably, fixed bottom plates are fixedly installed at the bottoms of the first air duct and the second air duct. One side of the fixed bottom plate is fixedly installed with a telescopic spring. One side of the telescopic spring is fixedly installed with a connecting movable plate. One side of the connecting movable plate is fixedly installed with a guide rod. One side of the fixed bottom plate is fixedly installed with a fixed sleeve, and the guide rod is slidably installed in the fixed sleeve.

[0011] Preferably, a movable limiting plate is fixedly installed on the other side of the connecting movable plate. A limiting opening for the movable limiting plate to move is formed inside the connecting limiting rod, and one side of the movable limiting plate passes through the limiting opening on the connecting limiting rod and extends to one side of the connecting limiting rod.

[0012] Preferably, a moving handle is fixedly installed at the bottom of the connecting movable plate, which is arranged to facilitate driving the connecting movable plate to move.

[0013] Preferably, holes for the connecting limiting rod to move are formed inside the first air duct and the second air duct, and the bottom of the connecting limiting rod passes through the holes on the first air duct and the second air duct and extends below the connecting limiting rod.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: for this fireproof and heat-insulating composite air duct, through the settings of the connecting cross plate and the connecting limiting rod, the first air duct and the second air duct can be quickly connected. Such a connection method is convenient for workers to operate, reducing the connection time of the first air duct and the second air duct. Further, through the setting of the movable limiting plate, the connecting limiting rod can be limited, thus avoiding the situation that the connecting limiting rod falls off from the first air duct and the second air duct during use, and further improving the stability of the first air duct and the second air duct after installation. And compared with the traditional connection method of bolts and nuts, such a connection method can effectively avoid the problem that it is difficult to disassemble the first air duct and the second air duct subsequently, further improving the practicability of the device. Additionally, through the setting of the filter screen, when conveying air, dust and impurities in the air can be filtered, thus improving the environmental protection of the device. Description of the Drawings

[0015] The following further illustrates the present utility model in conjunction with the drawings and embodiments:

[0016] Figure 1 is a perspective view of the present utility model;

[0017] Figure 2 is a cross-sectional view of the present utility model;

[0018] Figure 3 is an enlarged view of part A of the present utility model.

[0019] Reference numerals: 1, first air duct; 2, second air duct; 3, connecting cross plate; 4, connecting limit rod; 5, fixed bottom plate; 6, telescopic spring; 7, connecting movable plate; 8, moving handle; 9, guide rod; 10, fixed sleeve; 11, filter screen; 12, movable limiting plate. Detailed implementation manners

[0020] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The role of the accompanying drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the protection scope of the present invention.

[0021] Please refer to Figures 1 - 3 , the present invention provides a technical solution: a fireproof and heat-insulating composite air duct, including a first air duct 1, a connecting cross plate 3 and a movable limiting plate 12. A second air duct 2 is provided on one side of the first air duct 1; two groups of connecting limit rods 4 are provided on the connecting cross plate 3, and the two groups of connecting limit rods 4 are used to connect the first air duct 1 and the second air duct 2; movable limiting plates 12 are provided on both the first air duct 1 and the second air duct 2, and the movable limiting plates 12 are used to limit the connecting limit rods 4. Filter screens 11 are fixedly installed on the inner walls of both the first air duct 1 and the second air duct 2. Such a setting can filter dust and impurities in the air when conveying air, thereby improving the environmental protection of the device.

[0022] Furthermore, a connecting limit rod 4 is fixedly installed at the bottom of the connecting cross plate 3. Fixed bottom plates 5 are fixedly installed at the bottoms of both the first air duct 1 and the second air duct 2. A telescopic spring 6 is fixedly installed on one side of the fixed bottom plate 5. A connecting movable plate 7 is fixedly installed on one side of the telescopic spring 6. A guide rod 9 is fixedly installed on one side of the connecting movable plate 7. A fixed sleeve 10 is fixedly installed on one side of the fixed bottom plate 5. The guide rod 9 and the fixed sleeve 10 are slidably installed.

[0023] Furthermore, on the other side of the connecting movable plate 7, a movable limiting plate 12 is fixedly installed. A limiting opening for the movable limiting plate 12 to move is formed inside the connecting limiting rod 4. One side of the movable limiting plate 12 passes through the limiting opening on the connecting limiting rod 4 and extends to one side of the connecting limiting rod 4. A moving handle 8 is fixedly installed at the bottom of the connecting movable plate 7. Holes for the connecting limiting rod 4 to move are formed inside both the first air duct 1 and the second air duct 2. The bottom of the connecting limiting rod 4 passes through the holes on the first air duct 1 and the second air duct 2 and extends below the connecting limiting rod 4. This setting can quickly connect the first air duct 1 and the second air duct 2. Such a connection method is convenient for workers to operate, reduces the connection time of the first air duct 1 and the second air duct 2. Through the setting of the movable limiting plate 12, the connecting limiting rod 4 can be limited, avoiding the situation that the connecting limiting rod 4 falls off from the first air duct 1 and the second air duct 2 during use, thereby improving the stability after the installation of the first air duct 1 and the second air duct 2. And compared with the traditional connection method of bolts and nuts, such a connection method can effectively avoid the problem that it is difficult to disassemble the first air duct 1 and the second air duct 2 subsequently, further improving the practicability of the device.

[0024] Working principle: When in use, insert the two connecting limiting rods 4 on the connecting cross plate 3 into the holes inside the first air duct 1 and the second air duct 2 respectively, and then move the moving handle 8. The movement of the moving handle 8 drives the movement of the connecting movable plate 7, and the movement of the connecting movable plate 7 drives the movement of the movable limiting plate 12. After moving the connecting limiting rod 4 to the bottom of the first air duct 1 and the second air duct 2, release the moving handle 8. Through the rebound of the telescopic spring 6, the movable limiting plate 12 can be inserted into the opening on the connecting limiting rod 4 to limit the connecting limiting rod 4.

[0025] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field, various changes can be made without departing from the gist of the present invention.

Claims

1. A fireproof and heat-insulating composite air duct, characterized in that, Including: A first air duct (1), on one side of the first air duct (1), there is a second air duct (2); A connecting cross plate (3), on the connecting cross plate (3), there are two groups of connecting limit rods (4), and the two groups of connecting limit rods (4) are used to connect the first air duct (1) and the second air duct (2); A movable limit plate (12), on both the first air duct (1) and the second air duct (2), there is a movable limit plate (12), and the movable limit plate (12) is used to limit the connecting limit rod (4).

2. The fireproof and heat-insulating composite air duct according to claim 1, wherein: Filter nets (11) are fixedly installed on the inner walls of the first air duct (1) and the second air duct (2).

3. A fireproof and heat-insulating composite air duct according to claim 2, characterized in that: A connecting limit rod (4) is fixedly installed at the bottom of the connecting cross plate (3).

4. A fireproof and heat-insulating composite air duct according to claim 3, characterized in that: Fixed bottom plates (5) are fixedly installed at the bottoms of the first air duct (1) and the second air duct (2), on one side of the fixed bottom plate (5), a telescopic spring (6) is fixedly installed, on one side of the telescopic spring (6), a connecting movable plate (7) is fixedly installed, on one side of the connecting movable plate (7), a guide rod (9) is fixedly installed, on one side of the fixed bottom plate (5), a fixed sleeve (10) is fixedly installed, and the guide rod (9) is slidably installed with the fixed sleeve (10).

5. The fireproof and heat-insulating composite air duct according to claim 4, wherein: On the other side of the connecting movable plate (7), a movable limit plate (12) is fixedly installed, a limit opening for the movable limit plate (12) to move is opened inside the connecting limit rod (4), and one side of the movable limit plate (12) passes through the limit opening on the connecting limit rod (4) and extends to one side of the connecting limit rod (4).

6. The fireproof and heat-insulating composite air duct according to claim 5, characterized in that: A moving handle (8) is fixedly installed at the bottom of the connecting movable plate (7).

7. The fireproof and heat-insulating composite air duct according to claim 6, wherein: Holes for the connecting limit rod (4) to move are opened inside the first air duct (1) and the second air duct (2), and the bottom of the connecting limit rod (4) passes through the holes on the first air duct (1) and the second air duct (2) and extends below the connecting limit rod (4).

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