Air volume regulating device for heating, ventilation and air conditioning system

Abstract

The utility model relates to the technical field of heating ventilation air conditioning, disclose a kind of air volume regulating device for heating ventilation air conditioning system, including shell, the shell lateral wall is provided with air pipe, the shell lateral wall is fixedly connected with fixed sleeve, the fixed sleeve lateral wall is provided with cover, the fixed sleeve inside is provided with adjusting assembly, the shell lateral wall is provided with fixed component;The adjusting assembly includes fixed frame and multiple adjusting sheet, the fixed frame lateral wall is fixedly connected in the fixed sleeve inside, multiple the adjusting sheet lateral wall is rotatably connected in the fixed frame inside, the fixed sleeve inside is rotatably connected with rotating disc, the rotating disc lateral wall is fixedly connected with gear ring.In the utility model, through motor drive gear and gear ring meshing, rotating disc and connecting strip linkage adjusting sheet synchronous opening and closing are driven, so that ventilation section can be infinitely variable, to reach the effect of accurate control air volume, and the flexibility and accuracy of air volume regulation are improved by the above structure.

Description

Technical Field

[0001] This utility model relates to the field of heating, ventilation and air conditioning technology, and in particular to an air volume regulating device for heating, ventilation and air conditioning systems. Background Technology

[0002] In HVAC systems, air volume control devices are key equipment for maintaining indoor environmental comfort and ensuring system energy efficiency. They achieve precise control of supply and return air volume by changing the size of the air duct cross-section and are widely used in various building scenarios such as commercial buildings, industrial plants, and medical facilities. With increasing demands for indoor environmental quality and a deeper understanding of energy conservation, higher requirements are being placed on the adjustment accuracy, response speed, and operational stability of air volume control devices, driving continuous technological iteration and upgrades.

[0003] In existing technologies, airflow regulating devices mostly employ manual adjustment or simple electric drive structures. Manual adjustment devices typically use a handle to drive a linkage mechanism to open or close single or multiple blades. Their mechanical principle is based on lever transmission, relying on manual operation to change the blade angle to adjust the airflow. Electric adjustment devices mostly use a motor to directly drive the blade shaft to rotate, or use a gear set to drive a single blade to rotate. Some devices use a synchronous belt to connect multiple sets of blades to achieve linkage. The core of these structures is to adjust the effective ventilation area of ​​the air duct by changing the angle between the blades and the airflow direction, thereby achieving the purpose of airflow regulation.

[0004] However, existing airflow regulating devices generally suffer from low regulation accuracy and slow response. For example, manual regulation relies on manual operation, making it difficult to achieve continuous and precise airflow control; some electric regulating devices, due to their simple transmission structure design, are prone to poor synchronization when multiple blades are linked, resulting in uneven adjustment of the ventilation cross section. Furthermore, the presence of gaps in the transmission link between the motor and the blades makes the airflow regulation response speed slow and unable to quickly adapt to dynamic changes in system load. Therefore, an airflow regulating device for HVAC systems is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an air volume regulating device for HVAC systems, aiming to improve the problems of low regulation accuracy and slow response of existing air volume regulating devices.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An air volume regulating device for a heating, ventilation and air conditioning system includes a housing, an air duct is provided on the side wall of the housing, a fixing sleeve is fixedly connected to the side wall of the housing, a cover plate is provided on the side wall of the fixing sleeve, an regulating component is provided inside the fixing sleeve, and a fixing component is provided on the side wall of the housing.

[0008] The adjustment assembly includes a fixed frame and multiple adjustment plates. The sidewall of the fixed frame is fixedly connected to the inside of the fixed sleeve. The sidewalls of the multiple adjustment plates are rotatably connected to the inside of the fixed frame. A rotating disk is rotatably connected inside the fixed sleeve. A gear ring is fixedly connected to the sidewall of the rotating disk. A motor is fixedly connected inside the housing. A gear is fixedly connected to the output end of the motor. The gear meshes with the gear ring. A connecting strip is rotatably connected to the sidewall of the rotating disk. One end of the connecting strip is rotatably connected to the sidewall of the adjustment plate.

[0009] As a further description of the above technical solution:

[0010] The fixing component includes clamp one and clamp two. One side wall of clamp one is rotatably connected to the side wall of clamp two, and the inner walls of clamp one and clamp two are slidably connected to the interface between the housing and the air duct.

[0011] As a further description of the above technical solution:

[0012] A plug is fixedly connected to one side wall of the clamp, and a sleeve is fixedly connected to the other two side walls of the clamp. The side wall of the plug is slidably connected inside the sleeve.

[0013] As a further description of the above technical solution:

[0014] A fixed shell is fixedly connected to the side wall of the socket, and a fixed rod is slidably connected inside the fixed shell.

[0015] As a further description of the above technical solution:

[0016] The side wall of the fixing rod is slidably connected to the inside of the insert block, and a rotating handle is rotatably connected to one end of the fixing rod.

[0017] As a further description of the above technical solution:

[0018] A connecting ring is fixedly connected to the side wall of the fixed rod, and the side wall of the connecting ring is slidably connected inside the fixed shell.

[0019] As a further description of the above technical solution:

[0020] A spring is fitted on the side wall of the fixing rod. One end of the spring is fixedly connected to the side wall of the connecting ring, and the other end of the spring is fixedly connected to the inside of the fixing shell.

[0021] As a further description of the above technical solution:

[0022] A positioning block is fixedly connected to the interface end of the housing, and the side wall of the positioning block is slidably connected to the interface end of the air duct. A sealing ring is provided at the interface end of the housing, and the side wall of the sealing ring is slidably connected to the inside of the interface end of the air duct.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the motor drives the gear to mesh with the gear ring, which drives the rotating disk and the connecting strip linkage adjustment plate to open and close synchronously, so that the ventilation section can be adjusted steplessly, thereby achieving the effect of precise control of air volume. This solves the problems of low adjustment accuracy and slow response of existing air volume adjustment devices. The above structure improves the flexibility and accuracy of air volume adjustment.

[0025] 2. In this utility model, by connecting the positioning blocks, engaging the clamps one and two, and locking the fixing rod with the spring elasticity, the housing and the duct are quickly and securely connected, and the sealing ring is tightly sealed, thereby achieving convenient installation and reliable sealing. This solves the problems of time-consuming installation and easy air leakage in existing pipe connections. The above structure improves the installation efficiency and connection sealing of the device. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of an air volume regulating device for a heating, ventilation and air conditioning system proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the housing of an air volume regulating device for a heating, ventilation, and air conditioning system proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the internal structure of a fixing sleeve for an air volume regulating device in a heating, ventilation, and air conditioning system, as proposed in this utility model.

[0029] Figure 4 This is a schematic diagram of the structure of a clamp for an air volume regulating device in a heating, ventilation, and air conditioning system proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the internal structure of a socket for an air volume regulating device in a heating, ventilation, and air conditioning system proposed in this utility model.

[0031] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0032] Legend:

[0033] 1. Housing; 2. Air duct; 3. Cover plate; 4. Fixing sleeve; 5. Rotating disc; 6. Gear ring; 7. Motor; 8. Gear; 9. Fixing frame; 10. Adjusting plate; 11. Connecting strip; 12. Positioning block; 13. Sealing ring; 14. Clamp one; 15. Clamp two; 16. Insert block; 17. Inserting sleeve; 18. Fixing shell; 19. Fixing rod; 20. Rotating handle; 21. Connecting ring; 22. Spring. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figures 1-3 The present invention provides an embodiment of an air volume regulating device for a heating, ventilation and air conditioning system, comprising a housing 1, an air duct 2 disposed on the side wall of the housing 1 for conveying air and achieving airflow circulation, a fixing sleeve 4 fixedly connected to the side wall of the housing 1, a cover plate 3 disposed on the side wall of the fixing sleeve 4 for closing the fixing sleeve 4 and protecting the internal components, an adjusting component disposed inside the fixing sleeve 4 for adjusting the air volume and achieving precise air volume control, and a fixing component disposed on the side wall of the housing 1 for fixing the housing 1 and the air duct 2 to achieve a stable connection between the two.

[0036] The adjustment assembly includes a fixed frame 9 and multiple adjustment plates 10. The side wall of the fixed frame 9 is fixedly connected to the inside of the fixed sleeve 4. The fixed frame 9 is used to install the adjustment plates 10 and to support and limit the adjustment plates 10. The side walls of the multiple adjustment plates 10 are rotatably connected to the inside of the fixed frame 9. The adjustment plates 10 are used to change the size of the ventilation cross section to achieve the effect of air volume adjustment. A rotating disk 5 is rotatably connected inside the fixed sleeve 4. A gear ring 6 is fixedly connected to the side wall of the rotating disk 5. A motor 7 is fixedly connected inside the housing 1. The motor 7 is the drive source and is used to provide power to drive the operation of the adjustment assembly. A gear 8 is fixedly connected to the output end of the motor 7. The gear 8 meshes with the gear ring 6. A connecting strip 11 is rotatably connected to the side wall of the rotating disk 5. The connecting strip 11 works in conjunction with the rotating disk 5 and the adjustment plates 10 to achieve the effect of driving the adjustment plates 10 to rotate synchronously. One end of the connecting strip 11 is rotatably connected to the side wall of the adjustment plate 10. The multiple adjustment plates 10, the connecting strip 11, the rotating disk 5 and other components are combined to achieve the synchronous opening and closing of the multiple adjustment plates 10, thereby accurately adjusting the size of the ventilation cross section.

[0037] Reference Figures 4-6The fixing components include clamp 14 and clamp 2 15. Clamp 14 and clamp 2 15 fasten the interface between the housing 1 and the duct 2. The side wall of clamp 14 is rotatably connected to the side wall of clamp 2 15. Clamp 14 and clamp 2 15 cooperate in opening and closing movements, achieving convenient fastening at the interface between the housing 1 and the duct 2. The inner walls of clamp 14 and clamp 2 15 are slidably connected to the interface between the housing 1 and the duct 2. A plug 16 is fixedly connected to the side wall of clamp 14, and the side wall of clamp 2 15 is fixed... A sleeve 17 is connected, and the sleeve 17 engages with the insert block 16 to achieve a pre-fixing effect on clamp one 14 and clamp two 15. The side wall of the insert block 16 is slidably connected to the inside of the sleeve 17, and a fixing shell 18 is fixedly connected to the side wall of the sleeve 17. A fixing rod 19 is slidably connected inside the fixing shell 18, and the side wall of the fixing rod 19 is slidably connected to the inside of the insert block 16. One end of the fixing rod 19 is rotatably connected to a rotating handle 20, which is used to drive the fixing rod 19 to move, achieving convenient operation of the fixing rod. The effect of the fixed rod 19 is that a connecting ring 21 is fixedly connected to the side wall of the fixed rod 19, and the side wall of the connecting ring 21 is slidably connected to the inside of the fixed shell 18. A spring 22 is sleeved on the side wall of the fixed rod 19. The spring 22 cooperates with the connecting ring 21 to perform telescopic movement, so that the fixed rod 19 is always kept in a locked state. One end of the spring 22 is fixedly connected to the side wall of the connecting ring 21, and the other end of the spring 22 is fixedly connected to the inside of the fixed shell 18. A positioning block 12 is fixedly connected to the interface end of the shell 1. The positioning block 12 is used to align with the groove of the interface end of the air duct 2 to achieve the effect of precise docking between the shell 1 and the air duct 2. The side wall of the positioning block 12 is slidably connected to the interface end of the air duct 2. A sealing ring 13 is provided at the interface end of the shell 1. The sealing ring 13 is made of rubber and its function is to seal the interface between the shell 1 and the air duct 2. The side wall of the sealing ring 13 is slidably connected to the inside of the interface end of the air duct 2. The combination of components such as clamp 14, clamp 2, positioning block 12, and sealing ring 13 achieves the effect of quick and precise docking and firm sealing between the shell 1 and the air duct 2.

[0038] Working principle: When airflow needs to be adjusted, the motor 7 inside the housing 1 starts, driving the gear 8 to rotate. Since the gear 8 meshes with the gear ring 6 on the side wall of the rotating disk 5, the rotation of the gear 8 will drive the rotating disk 5 to rotate synchronously inside the fixed sleeve 4. When the rotating disk 5 rotates, the connecting strip 11 moves accordingly. The other end of the connecting strip 11 is rotatably connected to the side wall of the adjusting plate 10, thus driving the adjusting plate 10 to rotate around its own rotation axis inside the fixed frame 9. Multiple sets of adjusting plates 10 open and close synchronously through the above-mentioned linkage structure. When the adjusting plates 10 are parallel to each other and in the same direction as the airflow, the ventilation cross section is at its maximum and the airflow reaches its maximum. When the adjusting plates 10 rotate to cross each other or are perpendicular to the airflow, the ventilation cross section decreases and the airflow decreases accordingly. By controlling the forward and reverse rotation and speed of the motor 7, stepless adjustment of the airflow can be achieved.

[0039] When connecting the housing 1 to the duct 2, first align the positioning block 12 at the interface end of the housing 1 with the corresponding slot at the interface end of the duct 2, so that the side wall of the positioning block 12 slides into the interface end of the duct 2, thereby achieving precise positioning of the housing 1 and the duct 2 and avoiding misalignment. At the same time, the sealing ring 13 at the interface end of the housing 1 is embedded inside the interface end of the duct 2 to initially form a seal. After positioning, fasten clamp one 14 and clamp two 15 to the outside of the interface between the housing 1 and the duct 2, so that the inner walls of both are in close contact with the interface. At this time, the insert block 16 on the side wall of clamp one 14 slides into the insert sleeve 17 on the side wall of clamp two 15 to achieve pre-fixation of the clamp.

[0040] Next, push the fixing rod 19 inside the fixed housing 18 so that one end passes through the insert sleeve 17 and slides into the insert block 16, completing the locking of the clamp. The connecting ring 21 on the side wall of the fixing rod 19 will compress the spring 22. The rebound force of the spring 22 acts on the fixing rod 19 through the connecting ring 21, keeping it in a locked state and preventing loosening. If disassembly is required, pull the fixing rod 19 by rotating the handle 20, compressing the spring 22 and disengaging the fixing rod 19 from the insert block 16, thus opening the clamp. The sealing ring 13 is compressed under the locking force of the clamp, tightly fitting the interface surface between the housing 1 and the air duct 2. Combined with the guiding action of the positioning block 12, it effectively prevents airflow leakage.

Claims

1. An airflow regulating device for a heating, ventilation, and air conditioning system, comprising a housing (1), characterized in that: The housing (1) has a duct (2) on its side wall, a fixing sleeve (4) is fixedly connected to the side wall of the housing (1), a cover plate (3) is provided on the side wall of the fixing sleeve (4), an adjustment component is provided inside the fixing sleeve (4), and a fixing component is provided on the side wall of the housing (1). The adjustment assembly includes a fixed frame (9) and multiple adjustment plates (10). The side wall of the fixed frame (9) is fixedly connected to the inside of the fixed sleeve (4). The side walls of the multiple adjustment plates (10) are rotatably connected to the inside of the fixed frame (9). A rotating disk (5) is rotatably connected inside the fixed sleeve (4). A gear ring (6) is fixedly connected to the side wall of the rotating disk (5). A motor (7) is fixedly connected inside the housing (1). A gear (8) is fixedly connected to the output end of the motor (7). The gear (8) meshes with the gear ring (6). A connecting strip (11) is rotatably connected to the side wall of the rotating disk (5). One end of the connecting strip (11) is rotatably connected to the side wall of the adjustment plate (10).

2. The air volume regulating device for a heating, ventilation, and air conditioning system according to claim 1, characterized in that: The fixing components include clamp one (14) and clamp two (15). The side wall of clamp one (14) is rotatably connected to the side wall of clamp two (15). The inner walls of clamp one (14) and clamp two (15) are slidably connected to the interface between the housing (1) and the air duct (2).

3. The air volume regulating device for a heating, ventilation, and air conditioning system according to claim 2, characterized in that: The first clamp (14) is fixedly connected to the side wall of the insert block (16), and the second clamp (15) is fixedly connected to the side wall of the insert sleeve (17). The side wall of the insert block (16) is slidably connected inside the insert sleeve (17).

4. The air volume regulating device for a heating, ventilation, and air conditioning system according to claim 3, characterized in that: The side wall of the sleeve (17) is fixedly connected to a fixed shell (18), and a fixed rod (19) is slidably connected inside the fixed shell (18).

5. The air volume regulating device for a heating, ventilation, and air conditioning system according to claim 4, characterized in that: The side wall of the fixing rod (19) is slidably connected to the inside of the insert (16), and one end of the fixing rod (19) is rotatably connected to a rotating handle (20).

6. The air volume regulating device for a heating, ventilation, and air conditioning system according to claim 5, characterized in that: The side wall of the fixed rod (19) is fixedly connected to a connecting ring (21), and the side wall of the connecting ring (21) is slidably connected inside the fixed shell (18).

7. The air volume regulating device for a heating, ventilation, and air conditioning system according to claim 6, characterized in that: A spring (22) is sleeved on the side wall of the fixing rod (19). One end of the spring (22) is fixedly connected to the side wall of the connecting ring (21), and the other end of the spring (22) is fixedly connected to the inside of the fixing shell (18).

8. The air volume regulating device for a heating, ventilation, and air conditioning system according to claim 2, characterized in that: A positioning block (12) is fixedly connected to the interface end of the housing (1). The side wall of the positioning block (12) is slidably connected to the interface end of the air duct (2). A sealing ring (13) is provided at the interface end of the housing (1). The side wall of the sealing ring (13) is slidably connected to the inside of the interface end of the air duct (2).

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