Combined air volume regulating valve

Abstract

The utility model discloses a combined type air volume adjusting valve, and relates to the technical field of air volume adjusting valves. The blade assembly is arranged in an inner cavity of the valve body; the adjusting mechanism is arranged at the top of the valve body and used for rotation of the blade assembly. The first rotating cylinder is mounted at the top of the adjusting mechanism; the second rotating cylinder is fixed at the top of the first rotating cylinder; the elliptical disc is mounted at the rotating end of the top of the second rotating cylinder. Through the arrangement mode that the adjusting mechanism and the first rotating air cylinder are matched, a second rotating air cylinder and an oval disc are utilized, so that the connecting plate is conveniently jacked, two racks can move, the first rotating air cylinder can drive one blade assembly to rotate to adjust the air volume, and the air volume is adjusted. And the multiple blade assemblies can also be driven to rotate to adjust the air volume, small-air-volume air outlet can be accurately controlled conveniently, the control accuracy is improved, and the using stability of the valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air volume regulating valves, in particular to a combined air volume regulating valve. Background Art

[0002] The air volume control 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. It is generally used in the pipes of air-conditioning and ventilation systems to adjust the air volume of the branch pipes. It can also be used for mixing and adjusting fresh air and return air.

[0003] Existing air volume regulating valves, such as application number 202222093678.1, disclose a combined air volume regulating valve, including a valve body, a blade and a driving mechanism, an operating box is provided on the top of the valve body, and a valve stem is provided on the upper surface of the operating box, and the driving mechanism is installed between the valve body and the valve stem, and the driving mechanism is connected to the combination of the two for convenient disassembly and assembly. The driving mechanism can realize automatic adjustment of the valve stem, thereby automatically changing the angle of the blade, which reduces the trouble of inappropriate valve stem position compared to manual adjustment and increases the convenience of adjustment. The driving mechanism includes a mounting tube, a support frame, a motor, a gear and a gear ring, and the mounting tube is sleeved on the valve stem; the above-mentioned regulating valve can reduce the limitation of the valve body installation position that is inconvenient to manually hold the valve stem for adjustment, and improve the rotation adjustment efficiency of the valve stem and blade.

[0004] However, when the existing multi-blade combined air volume control valve is in use, multiple blades can only be adjusted at the same time. When the air volume is small, the multiple blades can only be adjusted to rotate in a small range. However, the angle of the multiple blades is still too much, resulting in insufficient air volume control accuracy of the air volume control valve, which affects the stability of the use of the air volume control valve. Utility Model Content

[0005] The purpose of the present utility model is to provide a combined air volume regulating valve to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a combined air volume regulating valve, comprising:

[0007] Valve body;

[0008] a blade assembly, wherein the blade assembly is arranged in the inner cavity of the valve body;

[0009] Also includes:

[0010] An adjusting mechanism, the adjusting mechanism being arranged on the top of the valve body and being used for rotating the blade assembly;

[0011] a first rotary cylinder mounted on the top of the adjustment mechanism;

[0012] a second rotary cylinder, the second rotary cylinder being fixed to the top of the first rotary cylinder;

[0013] The elliptical disk is installed at the rotating end of the top of the second rotating cylinder.

[0014] Preferably, the blade assembly comprises:

[0015] An adjusting rod, both ends of which are rotatably connected to the top and bottom of the valve body through bearings;

[0016] a blade body, wherein the blade body is fixed to the middle portion of the adjusting rod;

[0017] A sealing strip is fixed to the outer wall of the blade body.

[0018] Preferably, the adjustment mechanism includes:

[0019] A fixed box, the fixed box being fixed to the top of the valve body;

[0020] A gear, the gear being disposed in the inner cavity of the fixed box and fixedly inserted into the top of the adjusting rod;

[0021] A rack, the rack being meshed and connected with outer walls of two adjacent gears;

[0022] Moving components, the moving components are arranged on both sides of the fixed box;

[0023] A connecting plate is arranged on the moving component.

[0024] Preferably, the connecting plate is slidably and interlacedly connected to the end of the fixing box, and the outer wall of the elliptical disk is in contact with the inner wall of the connecting plate.

[0025] Preferably, the moving component includes:

[0026] A limiting frame, wherein the limiting frame is fixed to the inner wall of the fixing box;

[0027] A movable rod, one end of which slides on the top of the limit frame, and the connecting plate is fixed to the top of the movable rod;

[0028] A compression spring, the compression spring being fixed between the movable rod and the fixed box;

[0029] A positioning column is fixedly inserted into the end of the movable rod.

[0030] Preferably, the middle portion of the positioning post is slidably and interpenetratingly connected to the inner cavity of one of the limiting frames, and the bottom portion of the positioning post is slidably and interpenetratingly connected to the middle portion of the rack.

[0031] The technical effects and advantages of this utility model are:

[0032] The utility model adopts the arrangement mode of cooperating the adjusting mechanism and the first rotating cylinder, and utilizes the second rotating cylinder and the elliptical disk to facilitate the pushing of the connecting plate so that the two racks can move, so that the first rotating cylinder can drive one of the blade assemblies to rotate and adjust the air volume, and can also drive multiple blade assemblies to rotate and adjust the air volume, which is convenient for accurately controlling the air outlet of small air volumes, improving the control accuracy, and improving the stability of valve use. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0034] Figure 2 It is a schematic diagram of the overall front structure of the utility model.

[0035] Figure 3 This is a schematic diagram of the cross-sectional structure of the valve body of the utility model.

[0036] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixing box of the utility model.

[0037] In the figure: 1. Valve body; 2. Blade assembly; 21. Adjusting rod; 22. Blade body; 23. Sealing strip; 3. Adjusting mechanism; 31. Fixed box; 32. Gear; 33. Rack; 34. Moving assembly; 341. Limiting frame; 342. Movable rod; 343. Compression spring; 344. Positioning column; 35. Connecting plate; 4. First rotating cylinder; 5. Second rotating cylinder; 6. Oval disk. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] The utility model provides Figure 1-4 A combined air volume regulating valve is shown, comprising:

[0040] The valve body 1 and the blade assembly 2 are made of metal, and the inner cavity of the valve body 1 is a rectangular cavity structure. The blade assembly 2 is arranged in the inner cavity of the valve body 1. The inner cavity of the valve body 1 is equipped with multiple blade assemblies 2 in the same row. The blade assembly 2 includes: an adjusting rod 21, a blade body 22 and a sealing strip 23. The two ends of the adjusting rod 21 are rotatably connected to the top and bottom of the valve body 1 through bearings, respectively. The blade body 22 is fixed to the middle of the adjusting rod 21, and the sealing strip 23 is fixed to the outer wall of the blade body 22. The blade body 22 is fitted with the outer wall of the valve body 1 through the sealing strip 23. When two adjacent blade bodies 22 are arranged horizontally, the sealing strip 23 makes the two adjacent blade bodies 22 fit tightly together;

[0041] It also includes: an adjusting mechanism 3, a first rotating cylinder 4, a second rotating cylinder 5 and an elliptical disk 6. The adjusting mechanism 3 is arranged at the top of the valve body 1. The adjusting mechanism 3 is used for the rotation of the blade assembly 2. The adjusting mechanism 3 can rotate one of the blade assemblies 2, and can also adjust and control the other multiple blade assemblies 2 to rotate synchronously, so as to facilitate the adjustment of one blade or multiple blades to rotate and adjust the air volume. The first rotating cylinder 4 is installed on the top of the adjusting mechanism 3. The first rotating cylinder 4 is installed on the top of one of the adjusting rods 21, so that the first rotating cylinder 4 can rotate and drive one of the adjusting rods 21. The second rotating cylinder 5 is fixed on the top of the first rotating cylinder 4, and the elliptical disk 6 is installed on the rotating end of the top of the second rotating cylinder 5.

[0042] Specifically, the adjustment mechanism 3 includes: a fixed box 31, a gear 32, a rack 33, a moving assembly 34 and a connecting plate 35. The fixed box 31 is fixed to the top of the valve body 1, the gear 32 is arranged in the inner cavity of the fixed box 31, the gear 32 is fixedly inserted into the top of the adjusting rod 21, and the rack 33 is meshed with the outer walls of two adjacent gears 32. The inner cavity of the fixed box 31 is provided with three gears 32, two racks 33 and two moving assemblies 34. The opposite ends of the two racks 33 are meshed with the outer wall of one of the gears 32. Then, the back ends of the two racks 33 are respectively meshed with the outer walls of the other two gears 32. When the racks 33 are in contact with the gears 32, one of the gears 32 can drive the other two gears 32 to rotate, so that the first rotary cylinder 4 can drive the three adjustment rods 21 to rotate synchronously, so that the three blade bodies 22 can rotate synchronously to adjust the air volume. When the racks 33 are not in contact with the gears 32, the first rotary cylinder 4 can only drive one of the adjustment rods 21 to rotate, so as to accurately control the air volume of a small air volume.

[0043] The movable assembly 34 is arranged on both sides of the fixed box 31. The movable assembly 34 includes: two limit frames 341, a movable rod 342, a plurality of compression springs 343 and two positioning columns 344. The limit frame 341 is fixed to the inner wall of the fixed box 31. The two limit frames 341 on the same movable assembly 34 are fixed to the same side of the inner wall of the fixed box 31. One end of the movable rod 342 slides on the top of the limit frame 341. The compression spring 343 is fixed between the movable rod 342 and the fixed box 31. The positioning column 344 is fixedly inserted into the end of the movable rod 342. The middle part of the positioning column 344 is slidably inserted into the inner cavity of one of the limit frames 341. The other end of the movable rod 342 The cam 342 is rotated and inserted into one end of the other limiting frame 341 with one of the positioning posts 344 as the axis. The positioning post 344 is rotatably connected with one end of the other limiting frame 341. The bottom of the positioning post 344 is slidably connected with the middle part of the rack 33. The bottom of the positioning post 344 can support the bottom of the rack 33. Through the arrangement of the positioning post 344 and the limiting frame 341, the rack 33 can stably slide between the two adjacent limiting frames 341. The elasticity of the compression spring 343 facilitates the elastic push of the movable rod 342, so that the rack 33 maintains the meshing state with the two adjacent gears 32, facilitating the synchronous rotation of the two adjacent gears 32.

[0044] The cam 35 is engaged with the cam 342 and the cam 343 is engaged with the cam 344. The cam 343 is engaged with the cam 344 and the cam 343 is engaged with the cam 344. The cam 343 is engaged with the cam 344 and the cam 343 is engaged with the cam 344.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A combined air volume regulating valve, comprising: Valve body (1); A blade assembly (2), wherein the blade assembly (2) is arranged in the inner cavity of the valve body (1); It is characterized by further comprising: An adjusting mechanism (3), the adjusting mechanism (3) being arranged on the top of the valve body (1), and the adjusting mechanism (3) being used for rotating the blade assembly (2); a first rotary cylinder (4), the first rotary cylinder (4) being mounted on the top of the adjustment mechanism (3); a second rotary cylinder (5), the second rotary cylinder (5) being fixed to the top of the first rotary cylinder (4); The elliptical disk (6) is mounted on the rotating end of the top of the second rotary cylinder (5).

2. A combined air volume regulating valve according to claim 1, characterized in that: The blade assembly (2) comprises: An adjusting rod (21), both ends of which are rotatably connected to the top and bottom of the valve body (1) through bearings; a blade body (22), wherein the blade body (22) is fixed to the middle portion of the adjusting rod (21); A sealing strip (23) is fixed to the outer wall of the blade body (22).

3. A combined air volume regulating valve according to claim 2, characterized in that: The regulating mechanism (3) comprises: A fixing box (31), wherein the fixing box (31) is fixed to the top of the valve body (1); A gear (32), the gear (32) being disposed in the inner cavity of the fixed box (31), and the gear (32) being fixedly inserted into the top of the adjusting rod (21); a rack (33), wherein the rack (33) is meshedly connected with outer walls of two adjacent gears (32); A moving assembly (34), wherein the moving assembly (34) is arranged on both sides of the fixed box (31); A connecting plate (35) is provided on the moving component (34).

4. A combined air volume regulating valve according to claim 3, characterized in that: The connecting plate (35) is connected to the end of the fixing box (31) by sliding and interpenetrating, and the outer wall of the elliptical disk (6) is in contact with the inner wall of the connecting plate (35).

5. The combined air volume regulating valve according to claim 3, characterized in that: The moving assembly (34) comprises: A limiting frame (341), wherein the limiting frame (341) is fixed to the inner wall of the fixing box (31); A movable rod (342), one end of which slides on the top of the limiting frame (341), and the connecting plate (35) is fixed on the top of the movable rod (342); A compression spring (343), wherein the compression spring (343) is fixed between the movable rod (342) and the fixed box (31); A positioning column (344) is fixedly inserted into the end of the movable rod (342).

6. A combined air volume regulating valve according to claim 5, characterized in that: The middle portion of the positioning column (344) is slidably connected to the inner cavity of one of the limiting frames (341), and the bottom portion of the positioning column (344) is slidably connected to the middle portion of the rack (33).

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