Adjustable air valve

Abstract

The utility model discloses an adjustable air valve, which relates to the field of air valves and comprises a valve body, a rotating shaft is arranged on the valve body through a bearing, and a sealing component is arranged on the inner wall of the valve body. By arranging the sealing assembly, when a valve blade is closed, the valve blade pushes a movable block to move, so that the movable block moves into a through opening and drives a pressing plate to move, the pressing plate extrudes a compression air bag, and when the compression air bag is compressed, air in the compression air bag enters a first sealing air bag through a first inflation pipe; when the valve blade is completely closed, the first sealing air bag and the second sealing air bag can be tightly attached to the outer wall of the valve blade at the moment, so that the first sealing air bag expands, meanwhile, part of air enters the air guide pipe through the second inflation pipe and then enters the second sealing air bag through the air guide pipe, and the second sealing air bag expands; and therefore, the sealing performance after the valve blade is closed can be improved.

Description

Technical Field

[0001] The utility model relates to the field of air valves, in particular to an adjustable air valve. Background Art

[0002] The air volume regulating valve, also known as the damper, is an indispensable central air-conditioning terminal accessory in the ventilation, air conditioning and air purification projects of industrial plants and civil buildings. At present, most industrial plants, shopping malls, office buildings and other buildings are equipped with central air conditioners. The terminal of the central air conditioner is usually equipped with an air volume regulating valve. The air volume regulating valve is connected to the regulating blades for rotation. By adjusting the valve to change the opening and closing angle of the regulating blades, the air volume of the air conditioner can be controlled.

[0003] According to the Chinese patent with publication number CN219299952U, an air volume regulating valve is disclosed. The utility model arranges a rubber ring and a rubber sealing gasket on the valve blade. When the valve blade is closed, the rubber ring and the rubber sealing gasket can be connected to the inner wall of the shell and the inside of the metal sealing ring respectively, and the rubber sealing gasket is designed in three layers, so that the rubber sealing gasket can be segmentedly clamped inside the metal sealing ring, thereby improving the sealing effect when the valve blade is closed.

[0004] Regarding the above-mentioned disclosed patent content, since the sealing state after the valve blade is closed is achieved through the cooperation of rubber sealing gaskets and sealing rings, when the valve blade rotates, it will continue to squeeze the rubber sealing gaskets and sealing rings, causing the rubber sealing gaskets and sealing rings to continue to deform. After deformation for a long time, their elastic properties will weaken, resulting in the subsequent rubber sealing gaskets and sealing rings being difficult to fit tightly with the inner wall of the valve body and seal, which will further reduce the sealing performance after the subsequent valve blade is closed. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide an adjustable air valve to solve the technical problem that the elastic properties of the rubber sealing pad and the sealing ring are weakened after continuous deformation, thereby affecting the sealing effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable air valve, comprising a valve body, a rotating shaft is provided on the valve body through a bearing, a sealing assembly is provided on the inner wall of the valve body, and the sealing assembly comprises a cavity and a through port opened on both sides of the interior of the valve body, two first sealing air bags and a second sealing air bag provided on the inner wall of the valve body and two second inflation tubes provided inside the valve body, a compression air bag is provided on one side of the interior of the two cavities, a pressure plate is provided on one side of the compression air bag, and a movable block is installed on one side of the pressure plate, a plurality of first inflation tubes are connected between the compression air bag and the first sealing air bag, and a plurality of air guide tubes are connected between the second inflation tube and the second sealing air bag.

[0007] By adopting the above technical solution, when the compressed airbag is compressed, the air inside it will enter into the first sealed airbag through the first inflation tube, so that the first sealed airbag will expand.

[0008] Furthermore, a slide groove is provided at the upper and lower parts of the cavity, and a return spring is fixed to one side of the inner part of the slide groove, and one end of the return spring is connected to a slider.

[0009] By adopting the above technical solution, when the slider slides in the slide groove, it squeezes the return spring, so that the return spring is compressed.

[0010] Furthermore, the top and bottom of the pressing plate are both connected to the sliding block, and the pressing plate is slidably connected to the sliding groove via the sliding block.

[0011] By adopting the above technical solution, when the pressure plate moves, it will drive the slider to slide inside the slide groove, thereby improving the stability of the pressure plate when moving.

[0012] Furthermore, one end of the second inflation tube extends to the interior of the compressed airbag, and a plurality of the air guide tubes are equidistantly distributed between the second inflation tube and the second sealed airbag.

[0013] By adopting the above technical solution, when the compressed airbag is compressed, part of the air inside it will enter the air guide tube through the second inflation tube, and then enter the second sealed airbag through the air guide tube.

[0014] Furthermore, a valve blade is sleeved on the outer wall of the rotating shaft, and one end of the rotating shaft extends to the outside of the valve body and is connected to a rotating disk.

[0015] By adopting the above technical solution, when the rotating shaft rotates, it will drive the valve blade to rotate, thereby facilitating the adjustment of the angle of the valve blade.

[0016] Furthermore, bolt holes are provided on the outer surface of the turntable and the outer surface of the valve body, and a fastening bolt is installed inside one of the bolt holes.

[0017] By adopting the above technical solution, after the angle of the valve blade is adjusted, the user can rotate the fastening bolt and screw the fastening bolt into the corresponding bolt hole to limit and fix the turntable.

[0018] Furthermore, the first sealing airbag and the second sealing airbag are tightly fitted to the outer wall of the valve blade.

[0019] By adopting the above technical solution, the first sealing airbag and the second sealing airbag can be attached to the valve blade to improve the sealing performance of the valve blade after closing.

[0020] Furthermore, flanges are installed on the top and bottom of the valve body, and mounting holes are opened on the flanges.

[0021] By adopting the above technical solution, the arrangement of the flange and the mounting hole makes it easy to install the valve body and also convenient to disassemble it.

[0022] In summary, the utility model mainly has the following beneficial effects:

[0023] The utility model is provided with a sealing component. When the valve blade is closed, the valve blade will push the movable block to move, so that the movable block moves into the interior of the through port, and at the same time will drive the pressure plate to move, so that the pressure plate squeezes the compression airbag. When the compression airbag is compressed, the air inside it will enter the first sealing airbag through the first inflation tube, so that the first sealing airbag will expand. At the same time, part of the air will enter the interior of the air guide tube through the second inflation tube, and then enter the interior of the second sealing airbag through the air guide tube, so that the second sealing airbag will expand. When the valve blade is completely closed, the first sealing airbag and the second sealing airbag will fit tightly with the outer wall of the valve blade, thereby improving The sealing performance of the valve blade after closing, and when the valve blade is opened, the compressed airbag recovers, and the air inside the first sealing airbag and the second sealing airbag flows back to the compressed airbag, while the first sealing airbag and the second sealing airbag shrink and no longer fit the valve blade, to prevent the valve blade from squeezing the first sealing airbag and the second sealing airbag all the time, to prevent the first sealing airbag and the second sealing airbag from being damaged. At the same time, this method can ensure that the sealing airbag can continue to expand and seal during inflation, to avoid the long-term use of elastic parts such as rubber rings, to prevent the elastic performance of the elastic parts from weakening after use and causing the sealing effect to deteriorate, thereby improving the sealing performance of the valve blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the overall front section structure of the utility model;

[0026] Figure 3 It is a schematic diagram of the overall top-sectional structure of the utility model;

[0027] Figure 4 For the utility model Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0028] In the figure: 1. valve body; 2. flange; 3. mounting hole; 4. rotating shaft; 5. valve blade; 6. turntable; 7. bolt hole; 8. fastening bolt; 9. sealing assembly; 901. cavity; 902. compression airbag; 903. pressure plate; 904. movable block; 905. opening; 906. first sealing airbag; 907. first inflation tube; 908. slide groove; 909. slider; 910. return spring; 911. second inflation tube; 912. air guide tube; 913. second sealing airbag. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0030] The following describes an embodiment of the utility model based on its overall structure.

[0031] Embodiment 1:

[0032] An adjustable air valve, such as Figure 1-Figure 4 As shown, it includes a valve body 1, a rotating shaft 4 is provided on the valve body 1 through a bearing, a valve blade 5 is sleeved on the outer wall of the rotating shaft 4, one end of the rotating shaft 4 extends to the outside of the valve body 1 and is connected to a turntable 6, when the rotating shaft 4 rotates, it will drive the valve blade 5 to rotate, so as to facilitate the adjustment of the angle of the valve blade 5, the outer surface of the turntable 6 and the outer surface of the valve body 1 are provided with bolt holes 7, a fastening bolt 8 is installed inside a bolt hole 7, when the angle of the valve blade 5 is adjusted, the user can rotate the fastening bolt 8 and screw the fastening bolt 8 into the corresponding bolt hole 7, so as to limit and fix the turntable 6 to prevent the valve blade 5 from rotating at will, flanges 2 are installed on the top and bottom of the valve body 1, mounting holes 3 are provided on the flange 2, the arrangement of the flange 2 and the mounting hole 3 facilitates the installation of the valve body 1 and is also convenient for disassembly, and a sealing assembly 9 is provided on the inner wall of the valve body 1.

[0033] Specifically, the sealing assembly 9 includes a cavity 901 and a through port 905 opened on both sides of the valve body 1, two first sealing air bags 906 and a second sealing air bag 913 arranged on the inner wall of the valve body 1, and two second inflation tubes 911 arranged inside the valve body 1. A compression air bag 902 is arranged on one side of the two cavities 901, a pressure plate 903 is arranged on one side of the compression air bag 902, and a movable block 904 is installed on one side of the pressure plate 903. The top and bottom sides of the valve blade 5 and the top and bottom of the movable block 904 are arranged in an inclined shape, and the movable The movable block 904 is located inside the through opening 905 so that the valve blade 5 can push the movable block 904 to move when the valve blade 5 is closed, so that the movable block 904 moves into the through opening 905. A plurality of first inflation tubes 907 are connected between the compressed airbag 902 and the first sealed airbag 906. When the compressed airbag 902 is compressed, the air inside it will enter the first sealed airbag 906 through the first inflation tube 907, so that the first sealed airbag 906 expands. A plurality of air guide tubes 912 are connected between the second inflation tube 911 and the second sealed airbag 913.

[0034] See also Figure 1-Figure 3 The first sealing airbag 906 and the second sealing airbag 913 fit tightly with the outer wall of the valve blade 5. After the first sealing airbag 906 and the second sealing airbag 913 fit with the valve blade 5, the sealing performance of the valve blade 5 after closing can be improved. One end of the second inflation tube 911 extends to the inside of the compressed airbag 902. Multiple air guide tubes 912 are equidistantly distributed between the second inflation tube 911 and the second sealing airbag 913. When the compressed airbag 902 is compressed, part of the air inside it will enter the inside of the air guide tube 912 through the second inflation tube 911, and then enter the inside of the second sealing airbag 913 through the air guide tube 912.

[0035] Embodiment 2:

[0036] On the basis of the above-mentioned first embodiment, since the compressed airbag 902 needs to be restored after being compressed, and the restoration effect of the compressed airbag 902 itself is poor, the restoration efficiency of the compressed airbag 902 is improved by setting the following structure.

[0037] See also Figure 2-Figure 4, a slide groove 908 is provided at the upper and lower parts of the cavity 901, and a return spring 910 is fixed to one side of the inner part of the slide groove 908, and a slider 909 is connected to one end of the return spring 910. When the slider 909 slides in the slide groove 908, it squeezes the return spring 910, so that the return spring 910 is compressed, which is convenient for the subsequent pushing of the pressure plate 903 to reset and move. When the pressure plate 903 resets and moves, it drives the compressed airbag 902 to recover and improves the recovery efficiency of the compressed airbag 902. The top and bottom of the pressure plate 903 are connected to the slider 909, and the pressure plate 903 is slidably connected to the slide groove 908 through the slider 909. When the pressure plate 903 moves, it drives the slider 909 to slide in the slide groove 908, thereby improving the stability of the pressure plate 903 when moving.

[0038] The working principle of the utility model is as follows: first, when the angle of the valve blade 5 needs to be adjusted, the user can rotate the fastening bolt 8 to unscrew the fastening bolt 8 from the inside of the bolt hole 7, and no longer limit and fix the turntable 6. At this time, the user can rotate the rotating shaft 4 through the turntable 6, and then the rotating shaft 4 drives the valve blade 5 to rotate, so as to adjust the angle of the valve blade 5, so as to adjust the air volume;

[0039] When the valve blade 5 is reset and closed, the valve blade 5 will push the movable block 904 to move, so that the movable block 904 moves into the opening 905, and at the same time, it will drive the pressure plate 903 to move, so that the pressure plate 903 squeezes the compression airbag 902. When the compression airbag 902 is compressed, the air inside it will enter the first sealed airbag 906 through the first inflation tube 907, so that the first sealed airbag 906 expands. At the same time, part of the air will enter the air guide tube 912 through the second inflation tube 911, and then enter the second sealed airbag 913 through the air guide tube 912, so that the second sealed airbag 913 expands. When the valve leaf 5 is completely closed, the first sealing airbag 906 and the second sealing airbag 913 will fit tightly with the outer wall of the valve leaf 5. When the valve leaf 5 is opened, the compressed airbag 902 is restored, and the air inside the first sealing airbag 906 and the second sealing airbag 913 flows back into the compressed airbag 902, while the first sealing airbag 906 and the second sealing airbag 913 shrink and no longer fit with the valve leaf 5, thereby preventing the valve leaf 5 from squeezing the first sealing airbag 906 and the second sealing airbag 913 all the time and preventing the first sealing airbag 906 and the second sealing airbag 913 from being damaged.

[0040] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. An adjustable air valve, comprising a valve body (1), characterized in that: The valve body (1) is provided with a rotating shaft (4) via a bearing, the inner wall of the valve body (1) is provided with a sealing assembly (9), and the sealing assembly (9) comprises a cavity (901) and a through port (905) opened on both sides of the interior of the valve body (1), two first sealing airbags (906) and a second sealing airbag (913) provided on the inner wall of the valve body (1), and two second inflation tubes (911) provided inside the valve body (1), one side of the interior of the two cavities (901) is provided with a compression airbag (902), one side of the compression airbag (902) is provided with a pressure plate (903), and one side of the pressure plate (903) is installed with a movable block (904), a plurality of first inflation tubes (907) are connected between the compression airbag (902) and the first sealing airbag (906), and a plurality of air guide tubes (912) are connected between the second inflation tube (911) and the second sealing airbag (913).

2. The adjustable air valve according to claim 1, characterized in that: The cavity (901) is provided with a slide groove (908) at the upper and lower parts thereof, and a return spring (910) is fixed to one side of the inner part of the slide groove (908), and one end of the return spring (910) is connected to a slider (909).

3. The adjustable air valve according to claim 2, characterized in that: The top and bottom of the pressing plate (903) are both connected to the slider (909), and the pressing plate (903) is slidably connected to the slide groove (908) via the slider (909).

4. The adjustable air valve according to claim 1, characterized in that: One end of the second inflation tube (911) extends into the interior of the compressed airbag (902), and a plurality of the air guide tubes (912) are equidistantly distributed between the second inflation tube (911) and the second sealing airbag (913).

5. The adjustable air valve according to claim 1, characterized in that: The outer wall of the rotating shaft (4) is sleeved with a valve blade (5), and one end of the rotating shaft (4) extends to the outside of the valve body (1) and is connected to a rotating disk (6).

6. The adjustable air valve according to claim 5, characterized in that: The outer surface of the rotating disk (6) and the outer surface of the valve body (1) are both provided with bolt holes (7), and a fastening bolt (8) is installed inside one of the bolt holes (7).

7. The adjustable air valve according to claim 5, characterized in that: The first sealing airbag (906) and the second sealing airbag (913) are tightly fitted to the outer wall of the valve blade (5).

8. The adjustable air valve according to claim 1, characterized in that: Flanges (2) are installed on the top and bottom of the valve body (1), and mounting holes (3) are provided on the flanges (2).

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