Flue check valve mounting mechanism

Abstract

The utility model relates to the field of flues and discloses a flue check valve mounting mechanism which comprises an air pipe, the outer wall of the rear end of the air pipe is fixedly connected with a base, a mounting pipe is arranged on the front side of the air pipe, a check valve is mounted at the front end of the inner wall of the mounting pipe, the inner edge of the rear end of the mounting pipe is fixedly connected with an insertion pipe, and the insertion pipe is inserted into the inner side of the front end of the air pipe in a sliding mode. The front end of the installation pipe abuts against the rear end of the installation pipe, the outer wall of the installation pipe is sleeved with a rubber sleeve, the front end of the rubber sleeve is fixedly connected with the outer wall of the installation pipe, the outer wall of the air pipe is sleeved with the rear half section of the rubber sleeve, and the outer wall of the rear end of the rubber sleeve is sleeved with a hoop. The installation process of the check valve is greatly simplified and the installation efficiency is improved through the sliding butt joint of the insertion pipe and the air pipe and the rapid fixing mode of the rubber sleeve and the hoop; the material and the elastic design of the rubber sleeve and the fastening effect of the hoop jointly ensure the sealing performance between the mounting pipe and the air pipe, and smoke leakage is effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of flues, specifically a flue check valve installation mechanism. Background Technology

[0002] In modern building design, the flue system is an important component of ventilation and exhaust in spaces such as kitchens and bathrooms. Its performance and efficiency directly affect indoor air quality and the comfort of the living environment. The flue backflow preventer, as a key component of the flue system, has the main function of preventing flue gas backflow and ensuring the freshness and safety of indoor air.

[0003] However, improper sealing during the installation of flue backflow preventers can easily lead to flue gas leakage, affecting the overall performance of the flue system and potentially polluting the indoor environment. Utility Model Content

[0004] To overcome the above-mentioned shortcomings, this utility model provides a flue gas backflow preventer installation mechanism.

[0005] The technical solution adopted by this utility model is as follows:

[0006] A flue gas backflow preventer installation mechanism includes a duct, a base fixedly connected to the outer wall of the rear end of the duct, an installation tube on the front side of the duct, a backflow preventer installed on the front end of the inner wall of the installation tube, an insertion tube fixedly connected to the rear end of the installation tube, the installation tube and the insertion tube communicating, the outer diameter of the insertion tube being smaller than the outer diameter of the installation tube, the insertion tube slidingly inserted into the inner wall of the front end of the duct, the front end of the installation tube abutting against the rear end of the installation tube, a rubber sleeve fitted onto the outer wall of the installation tube, the front end of the rubber sleeve being fixedly connected to the outer wall of the installation tube, the rear half of the rubber sleeve fitted onto the outer wall of the duct, and a clamp fitted onto the outer wall of the rear end of the rubber sleeve, the rubber sleeve being tightly fitted to the outer wall of the duct through the clamp.

[0007] The beneficial effects of this utility model are:

[0008] This invention greatly simplifies the installation process of the check valve and improves installation efficiency by using a sliding connection between the insert and the duct, and a quick fixing method with a rubber sleeve and clamp.

[0009] The material and elastic design of the rubber sleeve, along with the tightening effect of the clamp, work together to ensure the seal between the installation pipe and the duct, effectively preventing the leakage of flue gas.

[0010] The design of the entire installation mechanism is relatively simple, and the connection between the components is easy to disassemble, making it easier and faster to perform later maintenance or replace the check valve. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a sectional view of the present invention;

[0013] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0014] Figure 4 This is a schematic diagram of the utility model before installation.

[0015] The specific reference numerals in all the attached drawings are as follows: 1. Base; 2. Air duct; 3. Installation pipe; 4. Check valve; 5. Insert pipe; 6. Rubber sleeve; 7. Clamp. Detailed Implementation

[0016] like Figure 1-4 As shown: A flue gas backflow preventer installation mechanism includes a duct 2, a base 1 fixedly connected to the outer wall of the rear end of the duct 2, an installation pipe 3 on the front side of the duct 2, a backflow preventer 4 installed at the front end of the inner wall of the installation pipe 3, an insertion pipe 5 fixedly connected to the rear end of the installation pipe 3, the installation pipe 3 and the insertion pipe 5 communicating, the outer diameter of the insertion pipe 5 being smaller than the outer diameter of the installation pipe 3, the insertion pipe 5 being slidably inserted into the inner wall of the front end of the duct 2, the front end of the installation pipe 3 abutting against the rear end of the installation pipe 3, a rubber sleeve 6 fitted onto the outer wall of the installation pipe 3, the front end of the rubber sleeve 6 being fixedly connected to the outer wall of the installation pipe 3, the rear half of the rubber sleeve 6 being fitted onto the outer wall of the duct 2, and a clamp 7 fitted onto the outer wall of the rear end of the rubber sleeve 6, the rubber sleeve 6 being tightly fitted to the outer wall of the duct 2 through the clamp 7.

[0017] First, ensure that the outer wall of the rear end of the duct 2 is fixedly connected to the base 1. This is the foundation of the entire installation mechanism. The front end of the duct 2 has a reserved installation position for the subsequent installation of the check valve.

[0018] Install a check valve 4 on the front end of the inner wall of the installation pipe 3. The check valve 4 is a key component to prevent flue gas backflow, and it must be ensured that it is installed correctly and can work properly.

[0019] The insertion tube 5 at the rear end of the installation tube 3 is slidably inserted into the inner front end of the air duct 2. The design of the insertion tube 5 allows the installation tube 3 to be tightly connected with the air duct 2, laying the foundation for subsequent sealing work.

[0020] A rubber sleeve 6 is fitted onto the outer wall of the installation pipe 3. The front end of the rubber sleeve 6 is fixedly connected to the outer wall of the installation pipe 3, while the rear half of the rubber sleeve 6 is fitted onto the outer wall of the air duct 2. The material and elasticity of the rubber sleeve can ensure the sealing between the installation pipe 3 and the air duct 2.

[0021] A clamp 7 is fitted onto the outer wall of the rear end of the rubber sleeve 6. The clamp 7 securely fixes the installation pipe 3 to the air duct 2. The design of the clamp 7 makes the installation process simpler and faster, while ensuring the stability of the installation.

Claims

1. A flue gas backflow preventer installation mechanism, comprising a duct (2), characterized in that, The rear end of the duct (2) is fixedly connected to the base (1). The front side of the duct (2) has an installation pipe (3). A check valve (4) is installed on the front end of the inner wall of the installation pipe (3). The rear end of the installation pipe (3) is fixedly connected to the insertion pipe (5). The installation pipe (3) and the insertion pipe (5) are connected. The outer diameter of the insertion pipe (5) is smaller than the outer diameter of the installation pipe (3). The insertion pipe (5) is slidably inserted into the inner wall of the front end of the duct (2). The front end of the installation pipe (3) abuts against the rear end of the installation pipe (3). The outer wall of the installation pipe (3) is fitted with a rubber sleeve (6). The front end of the rubber sleeve (6) is fixedly connected to the outer wall of the installation pipe (3). The rear half of the rubber sleeve (6) is fitted onto the outer wall of the duct (2). The rear end of the rubber sleeve (6) is fitted with a clamp (7). The rubber sleeve (6) is tightly fitted to the outer wall of the duct (2) through the clamp (7).

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