Check valve for exhaust gas discharge port

Abstract

The utility model relates to the technical field of exhaust gas discharge outlet check valves, in particular to an exhaust gas discharge outlet check valve, which is provided with a protection mechanism, so that in the working process of the exhaust gas discharge outlet check valve, the situation that equipment is blocked due to the fact that air flow is blown back and carries stones can be effectively prevented, and the service life of the equipment is prolonged. Comprising a valve mechanism; the device further comprises an installation mechanism and a protection mechanism, the installation mechanism is installed on the valve mechanism, and the protection mechanism is installed on the valve mechanism. The valve mechanism conducts one-way ventilation, the installation mechanism facilitates installation, and the protection mechanism conducts protection.

Description

Technical Field

[0001] The utility model relates to the technical field of a waste gas discharge port check valve, in particular to a waste gas discharge port check valve. Background Art

[0002] A check valve is a valve whose opening and closing part is a circular valve disc and which relies on its own weight and medium pressure to produce movement to block the backflow of the medium. It is an automatic valve and is also called a non-return valve, one-way valve, reflux valve or isolation valve.

[0003] In the existing waste gas discharge port check valve, for example, a waste gas discharge port check valve disclosed in the utility model patent with application number 02225167.7, during the installation process, the utility model does not need to insert the connecting seat into the flue or air duct wall hole, thereby avoiding the selection of the exhaust duct installation wall hole diameter, increasing the convenience and speed of installation, saving both time and effort.

[0004] However, during the operation of the exhaust gas outlet check valve, the backflow wind will carry stones and jam the blades, causing air flow backflow and affecting safety. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a waste gas outlet check valve which is provided with a protective mechanism, thereby effectively preventing the airflow from blowing back and carrying stones to jam the equipment during the operation of the waste gas outlet check valve, thereby increasing the service life of the equipment.

[0006] The utility model discloses an exhaust gas discharge port check valve, comprising a valve mechanism, a mounting mechanism and a protection mechanism, wherein the mounting mechanism is mounted on the valve mechanism, and the protection mechanism is mounted on the valve mechanism;

[0007] The valve mechanism performs one-way ventilation, the installation mechanism is easy to install, and the protective mechanism performs protection; the equipment is installed and fixed by the installation mechanism, the air is allowed to circulate in one direction by the valve mechanism, and the protective mechanism prevents strong winds from blowing back and carrying stones, so that during the operation of the exhaust gas discharge port check valve, it can effectively prevent the airflow from blowing back and carrying stones to jam the equipment, thereby increasing the service life of the equipment.

[0008] Preferably, the valve mechanism includes a valve body, multiple groups of sealing plates and rotary vanes. Each group of six sealing plates are integrated into the valve body through a vortex spring, and the rotary vanes are rotatably installed in the valve body. The sealing plates are opened by the circulation of air flow, thereby allowing air flow to pass through. When the air flow is backblown, the sealing plates are squeezed to close the sealing plates to prevent backflow.

[0009] Preferably, the installation mechanism includes a connecting plate, which is installed on the valve body and has four groups of connecting holes. The device can be installed on a wall or other location through the connecting holes.

[0010] Preferably, the protective mechanism includes a wind shield, multiple groups of guide plates and protective plates, the wind shield is installed on the valve body, the multiple groups of guide plates are installed on the wind shield and the valve body, and the protective plates are installed on the multiple groups of guide plates; the exhaust air is discharged through the guide plates through the wind shield, and the backblown air is discharged through the guide plates and merged with the exhaust air through the wind shield.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the equipment is installed and fixed by the installation mechanism, the air is allowed to circulate in one direction by the valve mechanism, and the protective mechanism is used to prevent strong winds from blowing back and carrying stones, so that during the operation of the exhaust gas discharge port check valve, the airflow can be effectively prevented from blowing back and carrying stones to jam the equipment, thereby increasing the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a first axonometric structural schematic diagram of the utility model;

[0013] Figure 2 It is a second axonometric structural schematic diagram of the utility model;

[0014] Figure 3 It is a schematic diagram of the front view and section axonometric structure of the utility model;

[0015] Figure 4 It is a schematic diagram of the first top-view cross-sectional axonometric structure of the utility model;

[0016] Figure 5 It is a second top-view cross-sectional axonometric structural schematic diagram of the utility model;

[0017] Markings in the accompanying drawings: 1. valve mechanism; 11. valve body; 12. sealing plate; 13. rotary vane; 2. mounting mechanism; 21. connecting plate; 22. connecting hole; 3. protective mechanism; 31. wind shield; 32. guide plate; 33. guard plate. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0019] Example 1

[0020] like Figures 1 to 5 As shown, it includes a valve mechanism 1, a mounting mechanism 2 and a protection mechanism 3, the mounting mechanism 2 is mounted on the valve mechanism 1, and the protection mechanism 3 is mounted on the valve mechanism 1;

[0021] The valve mechanism 1 performs one-way ventilation, the installation mechanism 2 facilitates installation, and the protection mechanism 3 performs protection;

[0022] The valve mechanism 1 comprises a valve body 11, a plurality of sealing plates 12 and a rotary vane 13. Each of the six sealing plates 12 is integrally mounted in the valve body 11 through a vortex spring. The rotary vane 13 is rotatably mounted in the valve body 11.

[0023] The mounting mechanism 2 includes a connecting plate 21, which is mounted on the valve body 11 and has four groups of connecting holes 22;

[0024] The protection mechanism 3 includes a wind shield 31, a plurality of guide plates 32 and a guard plate 33. The wind shield 31 is mounted on the valve body 11, the plurality of guide plates 32 are mounted on the wind shield 31 and the valve body 11, and the guard plate 33 is mounted on the plurality of guide plates 32.

[0025] The equipment can be installed on a wall or other location through the connecting hole 22, and the sealing plate 12 can be opened by the circulation of airflow to allow air to pass through. When the airflow blows back, the sealing plate 12 is squeezed to close the sealing plate 12 to prevent backflow, and the exhaust air is discharged through the guide plate 32 through the wind shield 31. The backblown air is discharged through the guide plate 32 through the wind shield 31 to merge with the exhaust air and prevent strong wind from blowing back and carrying stones. Therefore, during the operation of the exhaust gas outlet check valve, it can effectively prevent the airflow from blowing back and carrying stones to jam the equipment, thereby increasing the service life of the equipment.

[0026] like Figures 1 to 5 As shown, the utility model is a waste gas discharge outlet check valve, which, when working, is installed on a location such as a wall through a connecting hole 22, and the sealing plate 12 is opened by air circulation to allow air to pass through, and when the air blows back, the sealing plate 12 is squeezed to close the sealing plate 12 to prevent backflow, and the exhaust air is discharged through the guide plate 32 through the wind shield 31, and the backblown air is discharged through the guide plate 32 by the wind shield 31 to merge with the exhaust air and prevent strong winds from blowing back and carrying stones.

[0027] The main function achieved by the utility model is: during the operation of the exhaust gas discharge port check valve, by arranging a protection mechanism, the exhaust gas discharge port check valve can effectively prevent the airflow from blowing back and carrying stones to jam the equipment during operation, thereby increasing the service life of the equipment.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A waste gas discharge check valve, comprising a valve mechanism (1); characterized in that: It also includes a mounting mechanism (2) and a protection mechanism (3), wherein the mounting mechanism (2) is mounted on the valve mechanism (1), and the protection mechanism (3) is mounted on the valve mechanism (1); The valve mechanism (1) performs one-way ventilation, the installation mechanism (2) facilitates installation, and the protection mechanism (3) performs protection.

2. The exhaust gas discharge check valve according to claim 1, characterized in that: The valve mechanism (1) comprises a valve body (11), a plurality of sealing plates (12) and a rotary vane (13). Six of the plurality of sealing plates (12) are integrally mounted in the valve body (11) via a vortex spring. The rotary vane (13) is rotatably mounted in the valve body (11).

3. The exhaust gas discharge port check valve according to claim 2, characterized in that: The mounting mechanism (2) comprises a connecting plate (21), the connecting plate (21) being mounted on the valve body (11), and four groups of connecting holes (22) being arranged on the connecting plate (21).

4. The exhaust gas discharge check valve according to claim 2, characterized in that: The protection mechanism (3) comprises a wind shield (31), a plurality of guide plates (32) and a guard plate (33); the wind shield (31) is mounted on the valve body (11); the plurality of guide plates (32) are mounted on the wind shield (31) and the valve body (11); and the guard plate (33) is mounted on the plurality of guide plates (32).

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