Waste discharge pressure wave air valve

Abstract

The utility model provides a waste discharge pressure wave air valve which comprises a panel, a main air door and a buffering air door are arranged on the panel, a main air door plate and a buffering air door plate which can seal and press the air doors are installed on the rear side of the main air door and the rear side of the buffering air door respectively in a matched mode, and the main air door plate is an I-shaped plate which can seal and press the two main air doors at the same time. A first support and a second support are arranged on the rear side of the panel and arranged on the rear side of the main air door plate and the rear side of the buffering air door plate respectively, a first air cylinder and a second air cylinder are installed in the middle of the first support and the middle of the second support respectively, and a piston rod of the first air cylinder is connected with the middle of the main air door plate through a connecting plate. Piston rods of the second cylinders are connected with the middles of the buffer damper plates. The buffer air door is innovatively adopted, the resistance when the pressure air distribution valve is closed can be effectively reduced, the service life is prolonged, and therefore it can be effectively guaranteed that in-vehicle environment is not affected by external pressure fluctuation in the high-speed running process of a rail transit vehicle, and the comfort level of passengers is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure wave air valves, and particularly to a waste exhaust pressure wave air valve. Background Art

[0002] Waste exhaust pressure wave air valves are widely used in the waste exhaust systems of rail transit vehicles such as high-speed trains and subways. Its purpose is to prevent excessive influence of external pressure fluctuations on the vehicle interior pressure when the vehicle is moving at high speed. When the external pressure fluctuation changes greatly, the pressure wave protection device will act, close the pressure wave air door, block the air path, and make the vehicle interior form an approximately airtight environment to resist the pressure fluctuation. When the external air pressure fluctuation eases, the air door opens for normal ventilation and waste exhaust. Currently, when the waste exhaust pressure wave air valve is closed, due to the large pressure difference between the inside and outside of the rail transit vehicle, the resistance is large, and there is a problem of difficult closing. Summary of the Invention

[0003] To solve the above problems, the present invention discloses a waste exhaust pressure wave air valve.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A waste exhaust pressure wave air valve, characterized in that it includes a panel, a main air door and a buffer air door are provided on the panel, there are two main air doors, and they are symmetrically arranged left and right, the buffer air door is placed above the two main air doors, and a main air door plate and a buffer air door plate that can hermetically press the air doors are respectively installed at the rear sides of the main air door and the buffer air door. Among them, the main air door plate is an I-shaped plate that can simultaneously hermetically press the two main air doors. A first bracket and a second bracket are provided at the rear side of the panel. The first bracket and the second bracket are respectively placed at the rear sides of the main air door plate and the buffer air door plate, and a first cylinder and a second cylinder are respectively installed in the middle parts of the first bracket and the second bracket. The piston rod of the first cylinder is connected to the middle part of the main air door plate through a connecting plate, and the piston rod of the second cylinder is connected to the middle part of the buffer air door plate.

[0006] As a further improvement of the present invention, the panel is a rectangular plate, the main air door is a convex-shaped opening, and the convex parts of the two main air doors face each other. The buffer air door is circular. Sealing rings that can closely press the rear edges of the main air door and the buffer air door are respectively provided along the edges at the front sides of the main air door plate and the buffer air door plate.

[0007] As a further improvement of the present invention, the first bracket is fixedly connected to the panel through a connecting component. There are two groups of connecting components, and they are respectively located at both ends of the first bracket. The connecting component includes two symmetrically arranged sleeves. The two ends of the sleeve are respectively abutted against the panel and the first bracket, and are both fixed by bolts.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: The innovative use of a buffer air door can effectively reduce the resistance when the pressure air deflector valve is closed, extend the service life, and thus can effectively ensure that the interior environment of rail transit vehicles is not affected by external pressure fluctuations during high-speed driving, improving the comfort of passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a front schematic view of the present invention.

[0010] Figure 2 is Figure 1 a schematic view of the middle panel.

[0011] Figure 3 is a back schematic view of the present invention.

[0012] Figure 4 is Figure 3 a schematic view after removing the bracket assembly in

[0013] LIST OF REFERENCE NUMERALS:

[0014] 1 - Panel, 2 - Main air door, 3 - Buffer air door, 4 - Main air door plate, 5 - Buffer air door plate, 6 - First bracket, 7 - Second bracket, 8 - First cylinder, 9 - Second cylinder, 10 - Connecting plate, 11 - Sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The present invention will be further illustrated below in conjunction with the drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and not to limit the scope of the present invention.

[0016] As shown in the figure, the present invention provides a waste exhaust pressure wave air valve, including a panel 1, on which a main air door 2 and a buffer air door 3 are provided. There are two main air doors 2, which are symmetrically arranged left and right. The buffer air door 3 is placed above the two main air doors 2. On the rear sides of the main air door 2 and the buffer air door 3, a main air door plate 4 and a buffer air door plate 5 for hermetically pressing the air doors are respectively installed. Among them, the main air door plate 4 is an I-shaped plate that can simultaneously hermetically press the two main air doors 2. On the rear side of the panel 1, a first bracket 6 and a second bracket 7 are provided. The first bracket 6 and the second bracket 7 are respectively placed on the rear sides of the main air door plate 4 and the buffer air door plate 5, and a first cylinder 8 and a second cylinder 9 are respectively installed in the middle parts of the first bracket 6 and the second bracket 7. The piston rod of the first cylinder 8 is connected to the middle part of the main air door plate 4 through a connecting plate 10, and the piston rod of the second cylinder 9 is connected to the middle part of the buffer air door plate 5.

[0017] In this embodiment, the panel 1 is a rectangular plate, the main air damper 2 has a convex-shaped opening, and the convex parts of the two main air dampers 2 are arranged facing each other. The buffer air damper 3 is circular. Sealing rings that can be tightly pressed against the rear edges of the main air damper 2 and the buffer air damper 3 are respectively provided along the edges of the front sides of the main air damper plate 4 and the buffer air damper plate 5.

[0018] In this embodiment, the first bracket 6 is fixedly connected to the panel 1 through a connection component. There are two groups of connection components, which are respectively located at both ends of the first bracket 6. The connection component includes two symmetrically arranged sleeves 11. The two ends of the sleeve 11 are respectively abutted against the panel 1 and the first bracket 6, and are both fixed by bolts.

[0019] In the present invention, the opening and closing of the main air damper plate and the buffer air damper plate can be controlled by the first cylinder and the second cylinder respectively. When closing the waste exhaust pressure wave air valve, first close the main air damper plate, and then close the buffer air damper plate, so as to effectively reduce the resistance and ensure the smooth closing of the air distribution valve.

[0020] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A waste gas pressure wave valve, characterized in that: The invention comprises a panel (1), wherein the panel (1) is provided with a main air door (2) and a buffer air door (3), wherein the main air doors (2) are provided with two main air doors (2) and are arranged symmetrically on the left and right, and the buffer air door (3) is arranged above the two main air doors (2), and the rear sides of the main air doors (2) and the buffer air door (3) are respectively provided with a main air door plate (4) and a buffer air door plate (5) capable of sealing and pressing the air doors, wherein the main air door plate (4) is an I-shaped plate capable of sealing and pressing the two main air doors (2) at the same time, and the panel ( 1), a first bracket (6) and a second bracket (7) are provided on the rear side of the main damper plate (4) and the buffer damper plate (5), respectively, and a first cylinder (8) and a second cylinder (9) are installed in the middle of the first bracket (6) and the second bracket (7), respectively, the piston rod of the first cylinder (8) is connected to the middle of the main damper plate (4) through a connecting plate (10), and the piston rod of the second cylinder (9) is connected to the middle of the buffer damper plate (5).

2. The exhaust pressure wave valve according to claim 1, characterized in that: The panel (1) is a rectangular plate, the main air door (2) is a convex opening, and the protrusions of the two main air doors (2) are arranged facing each other, the buffer air door (3) is circular, and the front edges of the main air door plate (4) and the buffer air door plate (5) are respectively provided with sealing rings that can be tightly pressed with the rear edges of the main air door (2) and the buffer air door (3).

3. The exhaust pressure wave valve according to claim 1, characterized in that: The first bracket (6) is fixedly connected to the panel (1) via a connecting assembly, wherein the connecting assembly has two groups and is respectively located at two ends of the first bracket (6), and the connecting assembly comprises two symmetrically arranged sleeves (11), wherein two ends of the sleeves (11) respectively abut against the panel (1) and the first bracket (6), and are both fixed by bolts.

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