Fireproof flexible connecting pipe for ventilating duct

Abstract

The utility model relates to the technical field of ventilation pipelines, and particularly discloses a ventilation pipeline fireproof flexible connecting pipe which comprises a pipe body and connecting flanges, the connecting flanges are arranged at the two ends of the pipe body and used for being connected with air pipes at the two ends, the pipe body comprises a fabric layer and has certain ductility, and fluoride layers are arranged on the inner side and the outer side of the fabric layer to guarantee stable connection of pipe opening joints. The fluoride layer has excellent flame retardant performance, when open fire enters the ventilating duct, the connecting pipe can be guaranteed not to burn, the fabric layer is protected from being damaged, and flame is prevented from spreading continuously, the pipe body and the connecting flange are connected in a riveting mode, the matching face is coated with sealant, the connecting flange is made of a galvanized plate, and bolt holes are formed in the flange face. The fabric layer is made of glass fiber fabric and has certain ductility while ensuring the flame retardant property of the connecting pipe, and the fluoride layer is made of polytetrafluoroethylene and wraps the fabric layer, so that the connecting pipe has excellent flame retardant property and can effectively prevent the connecting pipe from burning when meeting open fire and avoid flame spreading.

Description

Technical Field

[0001] This utility model relates to the field of ventilation duct technology, specifically to a fireproof flexible connection pipe for ventilation ducts. Background Technology

[0002] Ventilation ducts are used in many aspects of life. During the installation of ventilation ducts, it is common to encounter situations where there are height differences or misalignments at the duct openings, which makes it difficult to guide airflow. Custom-made connecting pipes can be used to connect the two ends of the ducts, but this method greatly increases production costs. Moreover, these fixed connectors have no flexibility, and thermal expansion and contraction or vibration at the interface can cause changes in the distance between the duct openings, which may lead to unstable connections. Existing flexible connecting pipes are usually made of rubber, which has poor flame retardant properties and may burn when exposed to high temperatures and open flames, damaging the ventilation ducts. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the technical problem solved by this utility model is to provide a fireproof flexible connecting pipe for ventilation ducts, thereby solving the problem that the existing flexible connecting pipes have poor flame retardant performance and are not fireproof.

[0004] To solve the above problems, the technical solution adopted by this utility model is: a fireproof flexible connecting pipe for ventilation ducts, including a pipe body and connecting flanges. The pipe body is provided with connecting flanges at both ends for connecting to the air ducts at both ends. The pipe body includes a fabric layer with a certain degree of extensibility. Fluoride layers are provided on both the inner and outer sides of the fabric layer. The fluoride layers have excellent flame retardant properties. When an open flame enters the ventilation duct, it can ensure that the connecting pipe will not burn, protect the fabric layer from damage, and prevent the flame from spreading continuously.

[0005] The beneficial effects of this solution are as follows: Compared with the existing technology, the pipe body is composed of a fabric layer and fluoride layers on both the inner and outer sides of the fabric layer, which has certain ductility and excellent flame retardant properties. When used for connecting air ducts with height differences or misaligned settings, it can ensure a stable connection at the joint, and it will not easily burn when an open flame enters the air duct, effectively preventing the spread of fire.

[0006] Furthermore, the pipe body and the connecting flange are connected by riveting, and the mating surfaces are coated with sealant to ensure a stable connection and good airtightness.

[0007] Furthermore, the connecting flange is made of galvanized sheet metal, and bolt holes are provided on the flange surface. It is installed and connected to the air duct opening by bolts to ensure stable installation.

[0008] Furthermore, the fabric layer is made of glass fiber fabric, which ensures the flame-retardant performance of the connecting pipe while also providing a certain degree of ductility.

[0009] Furthermore, the fluoride layer is polytetrafluoroethylene (PTFE) coated on the fabric layer. PTFE has excellent flame retardant properties, which can effectively prevent the connecting pipe from burning when exposed to an open flame and avoid the spread of flame. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] In the diagram: 1-pipe body, 2-connecting flange, 11-fabric layer, 12-fluoride layer. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Implementation, for example, attached Figure 1 As shown: Fireproof flexible connecting pipe for ventilation ducts includes a pipe body 1 and connecting flanges 2. The pipe body 1 has connecting flanges 2 at both ends for connecting to the air ducts at both ends. The pipe body 1 includes a fabric layer 11 with a certain degree of extensibility. The fabric layer 11 has fluoride layers 12 on both the inner and outer sides. The fluoride layers 12 have excellent flame retardant properties. When an open flame enters the ventilation duct, it can ensure that the connecting pipe will not be burned, protect the fabric layer 11 from damage, and prevent the flame from spreading continuously.

[0014] The pipe body 1 and the connecting flange 2 are connected by riveting, and the mating surfaces are coated with sealant to ensure a stable connection and good airtightness. The connecting flange 2 is made of galvanized sheet, and bolt holes are provided on the flange surface. It is installed and connected to the air duct opening by bolts to ensure stable installation. The fabric layer 11 is made of glass fiber fabric, which ensures the flame retardant performance of the connecting pipe while also having a certain degree of ductility. The fluoride layer 12 is polytetrafluoroethylene (PTFE) covering the fabric layer 11. PTFE has excellent flame retardant properties and can effectively prevent the connecting pipe from burning when exposed to open flame, thus avoiding the spread of flame.

[0015] The specific implementation process is as follows: The fabric layer 11 of the pipe body 1 is made of glass fiber fabric, which has good flame retardant properties and a certain degree of ductility. The fabric layer 11 is covered with a fluoride layer 12 inside and out. The fluoride layer 12 is made of polytetrafluoroethylene, which has excellent flame retardant properties. The two ends of the pipe body 1 are riveted with connecting flanges 2 made of galvanized sheet, which are used to connect the air duct openings with height differences or misaligned settings. This can ensure a stable connection at the connection point, and the air duct will not easily burn when an open flame enters it, effectively preventing the spread of fire.

[0016] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A fireproof flexible connector for ventilation ducts, comprising a pipe body and connecting flanges, wherein connecting flanges are provided at both ends of the pipe body, characterized in that: The pipe body includes a fabric layer, and fluoride layers are provided on both the inner and outer sides of the fabric layer. The pipe body is connected to the connecting flange by riveting, and the mating surfaces are coated with sealant. The fabric layer is made of glass fiber fabric, and the fluoride layer is polytetrafluoroethylene covering the fabric layer.

2. The fireproof flexible connector for ventilation ducts according to claim 1, characterized in that: The connecting flange is made of galvanized sheet, and bolt holes are provided on the flange surface.

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