A large-scale HVAC duct ventilation regulation device

Abstract

This utility model relates to the field of HVAC duct ventilation technology and discloses a large-scale HVAC duct ventilation regulating device, including a valve body, a motor, bearing seats, a connecting block, a connecting rod, a valve core, valve plates, a connecting shaft, and a plug. The valve body includes a valve body, flanges, a motor base, and a mounting plate. The valve body is circular, with two flanges welded to both ends. The flanges extend radially outward from the ends of the valve body. The motor base is welded and fixed to the two flanges at both ends. The mounting plate is located in the center of the valve body. The motor is vertically fixed to the motor base by bolts. Several bearing seats are fixed to the outer center of the valve body by bolts at equal angles. The middle part of the connecting shaft is fixed in the bearing seats. The upper end of the connecting shaft is connected to one end of the connecting block, allowing the connecting block to rotate around the bearing seats via the connecting shaft. The lower end of the connecting shaft is connected to the outer side of the valve plates, which consist of multiple valve plates. This utility model can uniformly and stably regulate the airflow in the duct while maintaining a good sealing effect.

Description

Technical Field

[0001] This utility model relates to the field of HVAC duct ventilation technology, and in particular to a large-scale HVAC duct ventilation regulating device. Background Technology

[0002] Large-scale HVAC ventilation ducts can introduce fresh outdoor air and expel stale indoor air, thereby maintaining indoor air quality. They can also regulate thermal comfort and achieve energy conservation, and are widely used in commercial buildings, industrial sites, and residences. During use, large-scale HVAC ventilation ducts require adjustable devices to regulate airflow volume, airflow direction, and other parameters.

[0003] Existing technologies also include some large-scale HVAC duct ventilation regulating devices, but their stability and sealing performance are not strong during use, resulting in uneven and unstable airflow regulation. There are also some patents related to large-scale HVAC duct ventilation regulating devices, such as the utility model patent with application number CN202420354576.7 entitled "A Pipe Regulating Device for HVAC Heating and Ventilation," which can clamp external pipes of different diameters and improves the sealing performance between the external pipe and the regulating pipe through the adhesive layer, thus improving the device's applicability and ease of use. While this addresses the issue of pipe sealing, it focuses on the sealing performance between the external pipe and the regulating pipe, not on the sealing performance during the opening and closing of the HVAC duct.

[0004] For example, patent application number CN202222936604.X, entitled "A Utility Model Patent for Adjusting Pipelines for HVAC," utilizes the sliding of one end of a rod in a guide groove to move the scraper blades, which adhere tightly to the dust filter screen, downwards to clean impurities, and then move upwards after detaching from the screen. This reduces the amount of impurities stuck to the scraper blades being carried back onto the screen, improving cleaning quality and reducing operating noise. It primarily addresses the cleaning and noise pollution issues of HVAC pipelines, and its solution focuses on improving the cleaning of the dust filter screen and reducing noise; it does not address the adjustment stability or sealing issues of the HVAC pipelines. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a large-scale HVAC duct ventilation regulation device that can uniformly and stably regulate the duct air volume and maintain a good sealing effect.

[0006] This utility model is achieved using the following technical solution: A large-scale HVAC duct ventilation regulating device, comprising: a valve body, a motor, bearing seats, a connecting block, a connecting rod, a valve core, a valve plate, a connecting shaft, and a plug. The valve body includes a valve body, flanges, a motor seat, and a mounting plate. The valve body is circular, with two flanges welded to both ends, extending radially outward from the ends of the valve body. The motor seat is welded and fixed to the two flanges at both ends. The mounting plate is located in the center of the valve body. The motor is vertically fixed to the motor seat by bolts. Several bearing seats are fixed to the outer center of the valve body by bolts at equal angular intervals. The middle part of the connecting shaft is fixed in the bearing seat. The upper end of the connecting shaft is connected to one end of the connecting block, so that the connecting block can rotate around the bearing seat through the connecting shaft. The lower end of the connecting shaft is connected to the outer side of the valve plate. There are multiple valve plates. The inner side of each valve plate is rotatably mounted on the valve core. When the axial direction of the multiple valve plates is horizontal with the valve core, the pipe opening is the largest. When the axial direction of the multiple valve plates is perpendicular to the valve core, the pipe opening is the smallest, and the pipe opening is closed. Two inserts are rotatably and vertically mounted on the other end of each connecting block. The two inserts are spaced apart. The inserts on adjacent connecting blocks are connected by a connecting rod. The valve core is fixed to the mounting plate by bolts.

[0007] Furthermore, each valve disc has a mounting hole at the center of its outer side, and the lower end of the connecting shaft is detachably fixed in the mounting hole.

[0008] Furthermore, each valve piece has a mating groove at both ends. The grooves of the mating grooves are in opposite positions, with one groove facing the axial front end of the valve core and the other facing the axial rear end of the valve core, so that the ends of two adjacent valve pieces can block and seal each other after contact.

[0009] Furthermore, a sealing gasket is provided inside the docking groove.

[0010] Furthermore, a mounting bracket is fixed inside the valve body, and a support column is welded to the center of the mounting bracket facing the inside of the valve body. The mounting plate is fixed to the front end of the support column by bolts.

[0011] Furthermore, the valve core 6 is a regular polygon, and the valve plate has a horizontal inner side and a circular outer side.

[0012] Compared to existing technologies, the advantages of this invention are as follows: This invention provides a large-scale HVAC duct ventilation regulating device. A motor drives a connecting block located within the motor base, causing the connecting block to rotate around a bearing seat via a connecting shaft. This, in turn, pulls a pin via a connecting rod, causing multiple connecting blocks to rotate synchronously around the connecting shaft. This, in turn, drives valve plates to rotate around the valve core, controlling the ventilation regulation of the large HVAC duct. The valve plates exhibit high rotational stability, resulting in uniform and stable airflow regulation. Each valve plate also has mating grooves at both ends, allowing adjacent valve plates to block each other upon contact, improving stability and maintaining a good sealing effect. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the large-scale HVAC duct ventilation and regulation device of this utility model;

[0014] Figure 2 This is a left view of the present invention;

[0015] Figure 3 This is a schematic diagram of the valve body in this utility model;

[0016] Figure 4 This is a schematic diagram of the connection structure between the valve core and the valve plate in this utility model.

[0017] In the figure: Valve body 1; Motor 2; Bearing seat 3; Connecting block 4; Connecting rod 5; Valve core 6; Valve plate 7; Connecting shaft 8; Insert column 9; Valve body 11; Flange 12; Motor seat 13; Mounting bracket 14; Mounting plate 15; Support column 16; Mounting hole 71; Connecting groove 72. Detailed Implementation

[0018] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0019] The purpose of this invention is to address the shortcomings of existing technologies by providing a large-scale HVAC duct ventilation and regulation device.

[0020] Example 1

[0021] This embodiment provides a large-scale HVAC duct ventilation and regulation device, referring to... Figures 1-3As shown, the system includes: valve body 1, motor 2, bearing housing 3, connecting block 4, connecting rod 5, valve core 6, valve plate 7, connecting shaft 8, and insert 9. The valve body 1 comprises a valve body 11, flange 12, motor housing 13, and mounting plate 15. The valve body 11 is circular, with two flanges 12 welded to both ends for connection to HVAC ductwork. The outer ends of the flanges 12 extend radially outwards towards the ends of the valve body 11. The motor housing 13 is welded and fixed to the two flanges 12 at both ends. The mounting plate 15 is located in the center of the valve body 11. Specifically, a mounting bracket 14 is fixed to the inner side of the valve body 11, and a support column 16 is welded to the center of the mounting bracket 14 facing inwards from the valve body 11. The mounting plate 15 is fixed to the front end of the support column 16 with bolts.

[0022] Reference Figures 1-3 As shown, motor 2 is vertically fixed to motor base 13 by bolts, and bearing housing 3 is fixed to the outer middle of valve body 11 by bolts at equal angle intervals. The motor shaft of motor 2 is connected to the end of connecting block 4 located in motor base 13, so that motor 2 can drive connecting block 4 to rotate around connecting shaft 8. The middle part of connecting shaft 8 is fixed in bearing housing 3, and the upper end of connecting shaft 8 is connected to one end of connecting block 4, so that connecting block 4 can rotate around bearing housing 3 via connecting shaft 8. The lower end of connecting shaft 8 is connected to the outer side of valve plate 7. There are multiple valve plates 7, and the inner side of each valve plate 7 is rotatably mounted on valve core 6. When the axial direction of multiple valve plates 7 and valve core 6 is horizontal, the pipe opening is the largest. When the axial direction of multiple valve plates 7 and valve core 6 is perpendicular, the pipe opening is the smallest, and the pipe opening is closed. Two inserts 9 are rotatably and vertically mounted on the other end of each connecting block 4. The two inserts 9 are spaced apart, and the inserts 9 on adjacent connecting blocks 4 are connected by connecting rod 5. Valve core 6 is fixed to mounting plate 15 by bolts.

[0023] Reference Figure 4 As shown, each valve disc 7 has a mounting hole 71 at its center on the outer side, and the lower end of the connecting shaft 8 is detachably fixed in the mounting hole 71. Each valve disc 7 has a mating groove 72 at both ends. The grooves of the mating grooves 72 are positioned opposite each other, with one groove facing the axial front end of the valve core 6 and the other facing the axial rear end of the valve core 6, so that the ends of adjacent valve discs 7 can block and seal each other after contact. A sealing gasket is also provided inside the mating groove 72 to improve the sealing performance between adjacent valve discs 7.

[0024] This utility model discloses a large-scale HVAC duct ventilation adjustment device. In use, motor 2 drives the end of connecting block 4 located within motor base 13, allowing connecting block 4 to rotate around bearing seat 3 via connecting shaft 8. This, in turn, pulls insert 9 via connecting rod 5, causing multiple connecting blocks 4 to rotate synchronously around connecting shaft 8. This, in turn, drives valve plates 7 to rotate around valve core 6, controlling the ventilation adjustment of the large HVAC duct. When multiple valve plates 7 rotate to be horizontal with the axial direction of valve core 6, the duct opening is at its maximum; when multiple valve plates 7 rotate to be perpendicular with the axial direction of valve core 6, the duct opening is closed. Valve core 6 is a regular polygon, and the inner side of valve plate 7 is horizontal while the outer side is annular. This allows the inner and outer sides of valve plate 7 to rotate smoothly with valve core 6 and valve body 11, resulting in high rotational stability of valve plate 7 and uniform and stable airflow adjustment. Each valve plate 7 is provided with a mating groove 72 at both ends, and a sealing gasket is provided in the mating groove 72. The grooves of the mating groove 72 are opposite in position, so that the ends of two adjacent valve plates 7 can block each other after contact, improve stability, and maintain a good sealing effect.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A large heating, ventilation, and air conditioning duct register, comprising: include: The valve body (1) comprises a valve body (11), a motor (2), a bearing seat (3), a connecting block (4), a connecting rod (5), a valve core (6), a valve plate (7), a connecting shaft (8), and a plug (9). The valve body (1) includes a valve body (11), a flange (12), a motor seat (13), and a mounting plate (15). The valve body (11) is circular, with two flanges (12) welded to both ends. The flanges (12) extend radially outward from the ends of the valve body (11). The motor seat (13) is welded and fixed to the two flanges (12) at both ends. The mounting plate (15) is located in the center of the valve body (11). The motor (2) is vertically fixed to the motor seat (13) by bolts. Several bearing seats (3) are fixed at equal angles to the middle of the outer side of the valve body (11) by bolts. The connecting shaft (8) is fixed in the middle. The upper end of the connecting shaft (8) is connected to one end of the connecting block (4) in the bearing housing (3), so that the connecting block (4) can rotate around the bearing housing (3) through the connecting shaft (8). The lower end of the connecting shaft (8) is connected to the outer side of the valve plate (7). There are multiple valve plates (7). The inner side of each valve plate (7) is rotatably mounted on the valve core (6). When the axial direction of the multiple valve plates (7) and the valve core (6) is horizontal, the pipe opening is the largest. When the axial direction of the multiple valve plates (7) and the valve core (6) is perpendicular, the pipe opening is the smallest. At this time, the pipe opening is closed. Two inserts (9) are rotatably and vertically mounted on the other end of each connecting block (4). The two inserts (9) are spaced apart. The inserts (9) on two adjacent connecting blocks (4) are connected by a connecting rod (5). The valve core (6) is fixed on the mounting plate (15) by bolts.

2. The large heating, ventilation, and air conditioning duct register device of claim 1, wherein: Each valve disc (7) has a mounting hole (71) in the center of its outer side, and the lower end of the connecting shaft (8) is detachably fixed in the mounting hole (71).

3. The large heating, ventilation, and air conditioning duct register device of claim 2, wherein: Each valve plate (7) has a mating groove (72) at both ends. The grooves of the mating groove (72) are opposite in position, with one groove facing the axial front end of the valve core (6) and the other facing the axial rear end of the valve core (6), so that the ends of two adjacent valve plates (7) can block and seal each other after contact.

4. The large heating, ventilation, and air conditioning duct register device of claim 3, wherein: A sealing gasket is provided inside the docking groove (72).

5. The large heating, ventilating, and air conditioning duct register device of claim 1, wherein: The valve body (11) is fixed with a mounting bracket (14) on the inside. A support column (16) is welded to the center of the mounting bracket (14) facing the inside of the valve body (11). The mounting plate (15) is fixed to the front end of the support column (16) by bolts.

6. The large heating, ventilating, and air conditioning duct register of any one of claims 1 to 4, wherein: The valve core (6) is a regular polygon, and the valve plate (7) is horizontal on the inside and circular on the outside.

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