Civil engineering air duct and air pipe connecting joint

Abstract

The utility model discloses a civil engineering air duct and air pipe connecting joint which comprises an installation groove formed in the top of a civil engineering air duct, a T-shaped embedded part is fixedly installed on the installation groove, and a first heat-resisting sealing part is arranged between the T-shaped embedded part and the installation groove. A reducer pipe is detachably installed in the T-shaped embedded part, and an air pipe is fixedly installed at the top of the reducer pipe in a sealed mode. The joint has high connection leakproofness, is simple and compact in structure, facilitates construction and installation operation, reduces operation time and construction cost, and is high in structural stability after connection and wide in application prospect.

Description

Technical Field

[0001] The utility model relates to the technical field of air duct installation construction, and particularly relates to a connection node between a civil air duct and an air duct. Background Art

[0002] In the current building ventilation system, the connection between the civil air duct and the air duct is a key link, and the sealing treatment of the connection part is particularly important. Some construction units may cause poor sealing at the connection due to improper selection of sealing materials, non-standard construction techniques, etc., thus affecting the overall performance of the ventilation system. Common connection methods between the civil air duct and the air duct include direct socket connection, connection through flanges, and transitional connection using flexible connection materials, etc. Direct socket connection is relatively simple, but its sealing performance is relatively poor, and air leakage is likely to occur; flange connection has better sealing performance and stability, but the installation process is relatively complex, with high requirements for construction accuracy, increasing the construction cost. With the continuous development of building technology and the increasing requirements for the performance of ventilation systems, new connection materials and technologies are constantly emerging. However, due to factors such as cost and the degree of technology popularization, the application scope of these new technologies is still relatively limited.

[0003] During the construction of existing civil air ducts, a metal air duct structure is mostly lined inside to avoid the sealing and construction difficulty problems of the connection between the civil air duct and the air duct. However, this increases the usage amount of the lined metal air duct and the construction cost is relatively high. The invention patent with the publication number CN115681641A discloses a connection structure and connection method of an air duct in a civil air duct, including a common plate flange air duct. Rectangular ring-shaped flange bodies are arranged around the two ends of the common plate flange air duct, and the two common plate flange air ducts are connected correspondingly through the flange bodies. A foam gasket is fixedly installed between the flange bodies of the two connected common plate flange air ducts, and the foam gasket is in a rectangular structure and is adapted to the flange body. Bolts are fixedly installed at the four corners of the flange bodies of the two connected common plate flange air ducts, and a clamp connection mechanism is arranged on the peripheral side edges of the flange bodies of the two connected common plate flange air ducts. It can realize the auxiliary positioning docking and pre-tightening fixation of the air duct connection, which is beneficial to improving the overall quality and sealing quality of the air duct connection, but the construction cost is high. Content of the Utility Model

[0004] The purpose of the utility model is to provide a connection node between a civil air duct and an air duct. This node has strong connection tightness, a simple and compact structure, is convenient for construction and installation operations, reduces the operation time and construction cost, has strong structural stability after connection, and has a wide application prospect.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A connection node between a civil engineering air duct and an air pipe, including an installation groove arranged at the top of the civil engineering air duct, a T-shaped embedded part fixedly installed on the installation groove, and a first heat-resistant sealing member arranged between the T-shaped embedded part and the installation groove; a reducing pipe is detachably installed in the T-shaped embedded part, and an air pipe is hermetically and fixedly installed at the top of the reducing pipe.

[0007] Preferably, a sealing ring groove is formed between the outer side of the T-shaped embedded part and the installation groove, and a high-temperature resistant sealant is arranged in the sealing ring groove.

[0008] Preferably, the top of the T-shaped embedded part is flush with the top of the civil engineering air duct.

[0009] Preferably, a second heat-resistant sealing member is arranged between the reducing pipe and the T-shaped embedded part.

[0010] Preferably, a stiffening plate is arranged on the T-shaped embedded part.

[0011] In the utility model, an installation groove is arranged at the top of the civil engineering air duct, which is convenient for the installation of the T-shaped embedded part and forms a sealing ring groove with the T-shaped embedded part. By filling a high-temperature resistant sealant in it, the sealing performance of the connection part is maximally improved. The set T-shaped embedded part is T-shaped, and the connection structure with the installation groove has greater strength, and it is convenient for connecting with the reducing pipe and for loading and unloading operations. The structural strength of the T-shaped embedded part can be improved by the added stiffening plate, and the structural stability after connection is increased. The set first heat-resistant sealing member and second heat-resistant sealing member further improve the tightness of the connection part and prevent smoke leakage. Description of the Drawings

[0012] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 is a partially enlarged schematic diagram of the structure of the utility model;

[0014] Figure 3 is a schematic diagram of the structure of the T-shaped embedded part of the utility model;

[0015] In the figure: 1, civil engineering air duct; 2, installation groove; 3, T-shaped embedded part; 4, first heat-resistant sealing member; 5, high-temperature resistant sealant; 6, stiffening plate; 7, reducing pipe; 8, air pipe; 9, second heat-resistant sealing member. Detailed Embodiment

[0016] The following further describes the utility model with reference to the drawings:

[0017] As Figure 1 、 Figure 2 and Figure 3A connection node between a civil engineering air duct and an air pipe is shown, including an installation groove 2 integrally arranged at the top of the civil engineering air duct 1. A T-shaped embedded part 3 is fixedly installed on the installation groove 2 through expansion bolts. A first heat-resistant seal 4 is arranged between the T-shaped embedded part 3 and the installation groove 2. The first heat-resistant seal 4 is in a right-angled shape and is made of heat-resistant rubber material. A sealing ring groove is formed between the outer side of the top of the T-shaped embedded part 3 and the side wall of the installation groove 2. A high-temperature-resistant sealant 5 is filled in the sealing ring groove to further seal the connection between the T-shaped embedded part 3 and the installation groove 2 and improve the sealing performance. The top of the T-shaped embedded part 3 is flush with the top of the civil engineering air duct 1. Of course, the top of the T-shaped embedded part 3 can also be slightly higher than the top of the civil engineering air duct 1. A stiffening plate 6 is fixedly arranged on the T-shaped embedded part 3, and the stiffening plate 6 improves the structural strength of the T-shaped embedded part 3 and ensures the stability of the installation of the air pipe 8.

[0018] A reducing pipe 7 is detachably installed in the T-shaped embedded part 1 through fasteners. During use, a reducing pipe 7 with different interface sizes can be selected for installation according to the size of the air pipe 8. The air pipe 8 is fixedly installed on the top of the reducing pipe 7 through sealant and fasteners. A second heat-resistant seal 9 is arranged between the reducing pipe 7 and the T-shaped embedded part 3. The second heat-resistant seal 9 is made of heat-resistant rubber material to seal the connection between the reducing pipe 7 and the T-shaped embedded part 3.

[0019] The above embodiments are only several descriptions of the concept and implementation of the present invention, and do not limit it. Under the concept of the present invention, the technical solutions without substantial transformation are still within the protection scope.

Claims

1. A connection node between a civil engineering air duct and an air duct, characterized in that: It includes an installation groove arranged at the top of the civil engineering air duct, a T-shaped embedded part is fixedly installed on the installation groove, and a first heat-resistant sealing part is arranged between the T-shaped embedded part and the installation groove; a reducer is detachably installed in the T-shaped embedded part, and the air duct is sealed and fixedly installed on the top of the reducer.

2. The civil engineering air duct and air duct connection node according to claim 1, characterized in that: A sealing ring groove is formed between the outer side of the T-shaped embedded part and the installation groove, and a high temperature resistant sealant is arranged in the sealing ring groove.

3. The civil construction air duct and air duct connection node according to claim 1 or 2, characterized in that: The top of the T-shaped embedded part is flush with the top of the civil engineering air duct.

4. The civil engineering air duct and air duct connection node according to claim 1, characterized in that: A second heat-resistant sealing member is arranged between the reducer and the T-shaped embedded member.

5. The civil construction air duct and air duct connection node according to claim 1, characterized in that: A stiffening plate is arranged on the T-shaped embedded part.

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