Double-shaft air valve

Abstract

The utility model relates to the technical field of air valves, in particular to a double-shaft type air valve which comprises a shell, the shell is hollow, a mounting seat is fixedly arranged on the inner side of the shell, a first rotating shaft and a second rotating shaft are rotatably arranged on the mounting seat, the second rotating shaft and the first rotating shaft are arranged in parallel, and the first rotating shaft is fixedly connected with a first valve plate; the second rotating shaft is fixedly connected with a second valve plate, the first valve plate and the second valve plate are both located on the inner side of the shell, and the second valve plate and the first valve plate are arranged side by side; by arranging the first rotating shaft and the second rotating shaft, the first rotating shaft and the second rotating shaft are fixedly connected with the first valve plate and the second valve plate correspondingly, the connection stability and reliability are enhanced, the problems of poor stability and insufficient supporting force caused by traditional single-shaft connection of double valve plates are solved, and the risk of shaft breakage under high wind pressure is reduced.

Description

Technical Field

[0001] This application relates to the field of air valve technology, and in particular to a dual-axis air valve. Background Technology

[0002] Air valves are key equipment in ventilation and air conditioning systems. They are mainly used to control the flow rate, pressure, and direction of air in ducts or to block airflow, in order to meet the needs of ventilation, fire prevention, smoke prevention, energy saving, etc. in different scenarios.

[0003] Chinese utility model patent application number 202123308682.7—a novel corrosion-resistant damper device that is easy to disassemble—comprises a first damper housing and a second damper housing, which are arranged side by side. A mounting block is provided on the first damper housing, and screws are provided on the inner side of the mounting block. A mounting screw hole is opened on the inner side of the first damper housing. The first damper housing and the mounting block are fixed by screws and mounting screw holes. A mounting handle is fixed to one side wall of the mounting block, and a rotating shaft is provided on the lower surface of the mounting block. A first valve plate is provided on the inner side of the second damper housing, and a first hinge plate is fixed on the first valve plate. The first hinge plate and the rotating shaft are connected by a ring cylinder. A second valve plate is provided on the inner side of the first damper housing, and the second valve plate and the rotating shaft are connected by a second hinge plate. A corrosion-resistant mechanism is provided on the first damper housing. This structure avoids the difficulty of later maintenance caused by the often one-piece molded structure of damper housings. The design of this device is simple to assemble and disassemble, greatly saving maintenance time.

[0004] Existing technologies, including those mentioned in the patents, primarily employ a single-axis design connected to a dual-valve plate. While suitable for small-diameter pipes and low-frequency airflow regulation, the single-axis connection suffers from poor stability and support, making the valve plate prone to bending and deformation under wind pressure or airflow impact. At high flow rates, the single-axis design often fails to effectively suppress valve plate vibration, posing a risk of shaft end cracking. Connecting the valve plate to the rotating shaft via a hinge plate, however, affects the valve's response speed and increases the failure rate. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a dual-axis air valve. The technical problems solved are: the poor stability and insufficient support of the existing single-axis design connected to the dual valve plate, and the risk of bending deformation and shaft end cracking of the valve plate under high wind pressure or strong airflow impact. To solve the above-mentioned technical problems, the technical solution adopted by this utility model is:

[0006] A dual-axis damper includes:

[0007] The casing is hollow.

[0008] Mounting bases, both of which are fixedly connected to the housing;

[0009] The first rotating shaft is connected to the mounting base by a rotating structure.

[0010] The second rotating shaft is connected to the mounting base by a rotating structure, and the second rotating shaft is arranged in parallel with the first rotating shaft.

[0011] The first valve plate is fixedly connected to the first rotating shaft and is located inside the housing.

[0012] The second valve plate is fixedly connected to the second rotating shaft and is located inside the housing; the second valve plate is arranged side by side with the first valve plate.

[0013] Furthermore, the shell is divided into a first shell and a second shell, with the first shell and the second shell being fixedly connected.

[0014] Furthermore, a first connecting plate is fixedly mounted on the first rotating shaft, and the lower end face of the first connecting plate is fixedly connected to the first valve plate. A second connecting plate is fixedly mounted on the second rotating shaft, and the lower end face of the second connecting plate is fixedly connected to the second valve plate.

[0015] Furthermore, both the first connecting plate and the second connecting plate are L-shaped.

[0016] Furthermore, a handle is fixedly installed on the upper end face of the mounting base.

[0017] Furthermore, both the first valve plate and the second valve plate are provided with several reinforcing ribs.

[0018] Furthermore, sealing gaskets are fixedly provided on the contact surfaces of the first valve plate and the second valve plate with the housing.

[0019] The beneficial effects of this utility model are: by setting a first rotating shaft and a second rotating shaft, which are fixedly connected to the first valve plate and the second valve plate respectively, the stability and reliability of the connection are enhanced, avoiding the problems of poor stability and insufficient support caused by the traditional single shaft connection of double valve plates, and reducing the risk of shaft breakage under high wind pressure.

[0020] By setting a first connecting plate and a second connecting plate, the first valve plate and the second valve plate are connected to the first rotating shaft and the second rotating shaft respectively, so that the valve plate and the rotating shaft can rotate synchronously. The structure is simple and the failure rate is effectively reduced. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This is a top view of the present invention.

[0023] Figure 3This is a bottom view of the first valve plate and the second valve plate of this utility model.

[0024] Figure 4 This is a three-dimensional structural diagram of the present invention from another angle.

[0025] Figure 5 This is an enlarged view of part of the structure of this utility model.

[0026] In the picture:

[0027] 1. Housing, 2. Mounting base, 3. First rotating shaft, 4. Second rotating shaft, 5. First valve plate, 6. Second valve plate, 7. First housing, 8. Second housing, 9. First connecting plate, 10. Second connecting plate, 11. Handle, 12. Reinforcing rib, 13. Sealing gasket. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the utility model will now be described in further detail with reference to the accompanying drawings and the following embodiments, so that the public can better understand the implementation method of this utility model. The specific implementation scheme of this utility model is as follows:

[0029] A dual-axis damper includes a housing 1, which is hollow. A mounting base 2 is fixedly mounted inside the housing 1. The mounting base 2 has a first rotating shaft 3 and a second rotating shaft 4 arranged in a rotating structure. The second rotating shaft 4 is arranged parallel to the first rotating shaft 3. The first rotating shaft 3 is fixedly connected to a first valve plate 5, and the second rotating shaft 4 is fixedly connected to a second valve plate 6. Both the first valve plate 5 and the second valve plate 6 are located inside the housing 1, and the second valve plate 6 is arranged parallel to the first valve plate 5. By setting the first rotating shaft 3 and the second rotating shaft 4, and fixing the first rotating shaft 3 and the second rotating shaft 4 to the first valve plate 5 and the second valve plate 6 respectively, the stability and reliability of the connection are enhanced, avoiding the problems of poor stability and insufficient support caused by the traditional single-axis connection of dual valve plates, and reducing the risk of shaft breakage under high wind pressure.

[0030] In this embodiment, it should be noted that the housing 1 is divided into a first housing 7 and a second housing 8, and the first housing 7 and the second housing 8 are fixedly connected; the housing 1 is set as a split housing, which makes it convenient to disassemble and repair when a fault occurs during use.

[0031] In this embodiment, it should be noted that the first rotating shaft 3 is fixedly provided with a first connecting plate 9, the lower end face of the first connecting plate 9 is fixedly connected to the first valve plate 5, and the second rotating shaft 4 is fixedly provided with a second connecting plate 10, the lower end face of the second connecting plate 10 is fixedly connected to the second valve plate 6. Compared with the design in the prior art document that connects the valve plate and the rotating shaft through a hinge plate, where the valve plate needs to rotate around the rotating shaft through the hinge plate, this structure can realize the simultaneous rotation of the valve plate and the rotating shaft, which is simple in structure and effectively reduces the failure rate. Moreover, the setting of the connecting plate can further enhance the connection stability between the valve plate and the rotating shaft.

[0032] Furthermore, both the first connecting plate 9 and the second connecting plate 10 are L-shaped. The vertical portions of the first connecting plate 9 and the second connecting plate 10 are connected to the first rotating shaft 3 and the second rotating shaft 4, respectively, and the horizontal portions of the first connecting plate 9 and the second connecting plate 10 are connected to the first valve plate 5 and the second valve plate 6. Compared with a single planar connection, the L-shaped connecting plate can provide a larger contact area and stronger anti-torsion performance.

[0033] In this embodiment, it should be noted that a handle 11 is fixedly provided on the upper surface of the mounting base 2.

[0034] In this embodiment, it should be noted that both the first valve plate 5 and the second valve plate 6 are provided with a number of reinforcing ribs 12; the arrangement of this structure effectively enhances the rigidity and strength of the valve plate, while reducing the weight of the valve plate.

[0035] In this embodiment, it should be noted that sealing gaskets 13 are fixedly provided on the contact surfaces of the first valve plate 5 and the second valve plate 6 with the housing 1; this structure is mainly used to ensure the sealing performance of the overall structure.

[0036] The working principle and process of this utility model are as follows:

[0037] When the fluid flows from one side of the housing 1 to the other, the fluid pressure drives the first valve plate 5 and the second valve plate 6 to rotate synchronously together with the first rotating shaft 3 and the second rotating shaft 4. The first valve plate 5 and the second valve plate 6 move towards each other to allow the fluid to flow through. When the fluid flows in the opposite direction, the first valve plate 5 and the second valve plate 6 will move away from each other. The first valve plate 5 and the second valve plate 6 rotate until their sealing gasket 13 contacts and connects with the end faces of the first housing 7 and the second housing 8 to prevent the fluid from flowing back.

[0038] The dual-axis design enhances the stability and support of the connection between the shaft and the valve plate, reducing the risk of shaft breakage. The synchronous rotation of the shaft and the valve plate reduces intermediate links in motion transmission, enabling the valve to respond faster and ensuring the coordination and consistency of motion. This effectively avoids wear and uncertainty caused by relative motion.

[0039] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "left," "right," "front," "rear," "lower left," "upper right," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Although this utility model has been described according to a limited number of embodiments, those skilled in the art should understand from the above description that other embodiments can be conceived within the scope of this utility model described herein.

Claims

1. A dual-axis damper, characterized in that, include: The shell (1) is hollow; Mounting base (2), both mounting bases (2) are fixedly connected to the housing (1); The first rotating shaft (3) is connected to the mounting base (2) by a rotating structure, and the first rotating shaft (3) is fixedly provided with a first connecting plate (9); The second rotating shaft (4) is connected to the mounting base (2) by a rotating structure. The second rotating shaft (4) is arranged in parallel with the first rotating shaft (3). The second rotating shaft (4) is fixedly provided with a second connecting plate (10). The first valve plate (5) is fixedly connected to the lower end face of the first connecting plate (9), and the first valve plate (5) is located inside the housing (1); The second valve plate (6) is fixedly connected to the lower end face of the second connecting plate (10). The second valve plate (6) is located inside the housing (1). The second valve plate (6) is arranged side by side with the first valve plate (5).

2. The dual-axis damper according to claim 1, characterized in that: The housing (1) is divided into a first housing (7) and a second housing (8), and the first housing (7) and the second housing (8) are fixedly connected.

3. A dual-axis damper according to claim 1, characterized in that: Both the first connecting plate (9) and the second connecting plate (10) are L-shaped.

4. A dual-axis damper according to claim 1, characterized in that: A handle (11) is fixedly installed on the upper surface of the mounting base (2).

5. A dual-axis damper according to claim 1, characterized in that: Both the first valve plate (5) and the second valve plate (6) are provided with several reinforcing ribs (12).

6. A dual-axis damper according to claim 1, characterized in that: Sealing gaskets (13) are fixedly provided on the contact surfaces of the first valve plate (5) and the second valve plate (6) with the housing (1).

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