Ventilation duct with adjustable vent opening

Abstract

The utility model discloses a kind of ventilation ducts with adjustable ventilation caliber, ventilating duct technical field is related to, the ventilation duct with adjustable ventilation caliber includes adjustable ventilation duct, the adjustable ventilation duct front end is fixedly connected with adjustable ventilation rear end;The utility model, through the lifting adjustment of adjustable ventilation in lifting grille, and the rotation adjustment of ventilation adjusting plate in adjustable ventilation duct, ventilation caliber can be adjusted from ventilation and main pipe body two aspects, ventilation volume can be accurately adjusted according to actual demand, and different working conditions and use scene are adapted;The adjustment of adjustable ventilation is realized by adjusting locking knob and the like component, the adjustment of adjustable ventilation duct is driven by drive cylinder and the like drive, whether it is manually adjusted or power-driven adjustment, operation mode is relatively simple, and it is convenient for operator to operate and maintain.

Description

Technical Field

[0001] This utility model relates to the field of ventilation duct technology, specifically to a ventilation duct with an adjustable ventilation opening diameter. Background Technology

[0002] In the field of ventilation systems, ventilation ducts are key components for achieving air transport and distribution. The ventilation opening diameter of traditional ventilation ducts is usually fixed, which means that in practical applications, when it is necessary to adjust the ventilation volume according to different operating conditions, traditional ventilation ducts often cannot meet the requirements.

[0003] For example, in some industrial plants, different production processes may require different ventilation volumes. If the ventilation duct diameter is fixed, it can only operate at a fixed ventilation volume, resulting in energy waste; or additional equipment needs to be added for adjustment, increasing the complexity and cost of the system. In the ventilation systems of commercial buildings, different areas also have different ventilation requirements. Fixed-diameter ventilation ducts cannot flexibly adapt to these changes, which may lead to over- or under-ventilation in some areas, affecting indoor air quality and the comfort of people.

[0004] To address the problem of fixed diameter and inflexible airflow adjustment in traditional ventilation ducts, this technology proposes a ventilation duct with adjustable diameter. The aim is to achieve convenient adjustment of the ventilation diameter through reasonable structural design, so as to adapt to the ventilation needs under different working conditions and improve the practicality and energy efficiency of the ventilation system. Utility Model Content

[0005] The purpose of this utility model is to provide a ventilation duct with an adjustable ventilation opening diameter. By installing an adjustable ventilation opening with an adjustable ventilation duct, the flexibility, ease of operation, ventilation efficiency, and structural stability of the ventilation duct opening are improved, thereby solving the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A ventilation duct with an adjustable ventilation opening diameter, comprising: An adjustable ventilation duct, the front end of which is fixedly connected to the rear end of an adjustable ventilation opening; The adjustable vent includes a flange frame, the front end of which is fixedly connected to the vent grille. The upper and lower ends of the rear side of the vent grille are symmetrically provided with limiting posts, and the upper and lower ends of the front side of the vent grille are symmetrically provided with sliding grooves. The inner side of the symmetrically provided sliding grooves is slidably connected to the symmetrically provided adjustment and locking knobs.

[0007] As a further technical solution of this utility model, the rear end of the symmetrically arranged adjustment and locking knobs is connected to the fixing groove through an elastic buckle, and the fixing groove is symmetrically arranged at the upper and lower ends of the lifting grid plate.

[0008] As a further technical solution of this utility model, the upper and lower ends of the lifting grid plate are symmetrically provided with U-shaped grooves, and the symmetrically arranged U-shaped grooves are correspondingly arranged with the symmetrically arranged limiting posts.

[0009] As a further technical solution of this utility model, the rear end of the flange frame is fixedly connected to the front end of the connecting flange seat by multiple bolts, the rear end of the connecting flange seat is fixedly installed at the front end of the main pipe body, and a cylinder mounting bracket is fixedly installed on the upper surface of the rear end of the main pipe body.

[0010] As a further technical solution of this utility model, a drive cylinder is fixedly installed on the cylinder mounting bracket. The front end of the drive cylinder is connected to one end of a connecting rod, and the other end of the connecting rod is connected to the upper end of the rotating shaft.

[0011] As a further technical solution of this utility model, the upper and lower ends of the rotating shaft are rotatably connected to the bearing seats, and the bearing seats are fixedly installed symmetrically on the upper and lower surfaces of the main pipe body; a ventilation regulating plate is fixedly installed on the rotating shaft, the ventilation regulating plate is arranged in a ring and located inside the main pipe body.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the lifting and lowering adjustment of the adjustable grille plate in the adjustable ventilation opening and the rotation adjustment of the ventilation regulating plate in the adjustable ventilation duct, can adjust the ventilation opening diameter from both the ventilation opening and the main duct body, and can accurately adjust the ventilation volume according to actual needs to adapt to different working conditions and usage scenarios. 2. In this utility model, the adjustable ventilation opening is adjusted by adjusting the locking knob and other components, and the adjustable ventilation duct is adjusted by the drive cylinder and other components. Whether it is manual adjustment or power-driven adjustment, the operation is relatively simple and convenient for operators to operate and maintain. 3. In this utility model, the bearing seat ensures smooth rotation of the rotating shaft, and the limiting column and other components effectively guide and limit the movement of the lifting grid plate, making the entire device structurally stable during adjustment and use, less prone to failure, and with a long service life. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This utility model Figure 1 Top view.

[0015] Figure 3 This utility model Figure 1 A schematic diagram of the split structure.

[0016] Figure 4 This utility model Figure 3 A schematic diagram of the split structure.

[0017] Figure 5 This utility model Figure 4 A schematic diagram of the split structure.

[0018] Figure 6 This utility model Figure 3 A magnified view of a portion of the image.

[0019] Figure 7 This utility model Figure 4 A magnified view of a portion of the image.

[0020] In the diagram: 1 - Adjustable ventilation duct, 2 - Adjustable ventilation opening; 11-Main pipe body, 12-Cylinder mounting bracket, 13-Drive cylinder, 14-Connecting rod, 15-Rotating shaft, 16-Bearing seat, 17-Ventilation regulating plate, 18-Connecting flange seat; 21-Flange frame, 22-Ventilation grille, 23-Limiting post, 24-Sliding groove, 25-Adjusting locking knob, 26-Fixing groove, 27-Lifting grille plate, 28-U-shaped groove. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-7 In this embodiment of the invention, a ventilation duct with an adjustable ventilation diameter includes... An adjustable ventilation duct 1 is fixedly connected at its front end to the rear end of an adjustable ventilation opening 2. The adjustable vent 2 includes a flange frame 21, the front end of which is fixedly connected to the vent grille 22. The upper and lower ends of the rear side of the vent grille 22 are symmetrically provided with limiting posts 23. The upper and lower ends of the front side of the vent grille 22 are symmetrically provided with sliding grooves 24. The inner side of the symmetrically provided sliding grooves 24 is slidably connected with the symmetrically provided adjustment and locking knobs 25. The rear end of the symmetrically arranged adjustment and locking knobs 25 is connected to the fixing grooves 26 via elastic buckles. The fixing grooves 26 are symmetrically arranged at the upper and lower ends of the lifting grid plate 27. The lifting grid plate 27 has symmetrically arranged U-shaped grooves 28 at both the upper and lower ends, and the symmetrically arranged U-shaped grooves 28 are correspondingly arranged with the symmetrically arranged limiting posts 23.

[0023] By adopting the above technical solution, the ventilation diameter can be adjusted from both the ventilation opening and the main duct body by adjusting the lifting and lowering of the lifting grille plate 27 in the adjustable ventilation opening 2 and the rotation adjustment of the ventilation regulating plate 17 in the adjustable ventilation duct 1. The ventilation volume can be precisely adjusted according to actual needs to adapt to different working conditions and usage scenarios. The bearing housing 16 ensures smooth rotation of the rotating shaft 15, and the limiting column 23 and other components effectively guide and limit the movement of the lifting grid plate 27, making the entire device structurally stable during adjustment and use, less prone to failure, and with a long service life.

[0024] In this embodiment, the rear end of the flange frame 21 is fixedly connected to the front end of the connecting flange seat 18 by multiple bolts. The rear end of the connecting flange seat 18 is fixedly installed at the front end of the main pipe body 11. A cylinder mounting bracket 12 is fixedly installed on the upper surface of the rear end of the main pipe body 11. A drive cylinder 13 is fixedly mounted on the cylinder mounting bracket 12. The front end of the drive cylinder 13 is connected to one end of the connecting rod 14, and the other end of the connecting rod 14 is connected to the upper end of the rotating shaft 15. The upper and lower ends of the rotating shaft 15 are rotatably connected to the bearing seat 16, which is symmetrically fixedly installed on the upper and lower surfaces of the main pipe body 11. A ventilation regulating plate 17 is fixedly installed on the rotating shaft 15. The ventilation regulating plate 17 is arranged in a ring and located inside the main pipe body 11.

[0025] By adopting the above technical solution, the adjustment of the adjustable vent 2 is achieved by adjusting the locking knob 25 and other components, and the adjustment of the adjustable ventilation duct 1 is driven by the drive cylinder 13 and other components. Whether it is manual adjustment or power-driven adjustment, the operation method is relatively simple, which is convenient for operators to operate and maintain.

[0026] The working principle of this utility model is as follows: When it is necessary to adjust the ventilation opening diameter, the operator can operate the adjusting locking knob 25 to slide it in the sliding groove 24; the rear end of the adjusting locking knob 25 is connected to the fixing groove 26 through an elastic buckle. By changing the cooperation position between the adjusting locking knob 25 and the fixing groove 26, the lifting grille 27 is driven to move up and down along the guide of the limiting post 23 and the U-shaped groove 28; the lifting grille 27 cooperates with the ventilation opening grille 22 to change the effective ventilation area of ​​the ventilation opening and realize the adjustment of the ventilation opening diameter; after the adjustment is completed, the adjusting locking knob 25 can be used to lock the lifting grille 27 in the required position to ensure the stability of the ventilation opening diameter; When the drive cylinder 13 is activated, its front end pushes the connecting rod 14 to move; the connecting rod 14 drives the rotating shaft 15 to rotate in the bearing seat 16, and the ventilation regulating plate 17, which is fixedly installed on the rotating shaft 15 and arranged in a ring, rotates accordingly; the ventilation regulating plate 17 rotates inside the main pipe body 11, changing the effective cross-sectional area of ​​the ventilation channel inside the main pipe body 11, thereby adjusting the ventilation opening diameter and ventilation volume. By adjusting the lifting and lowering of the lifting grille plate 27 in the adjustable ventilation opening 2 and the rotation adjustment of the ventilation regulating plate 17 in the adjustable ventilation duct 1, the diameter of the ventilation opening can be adjusted from both the ventilation opening and the main duct body. The ventilation volume can be precisely adjusted according to actual needs to adapt to different working conditions and usage scenarios. The adjustable vent 2 is adjusted by adjusting the locking knob 25 and other components, and the adjustable ventilation duct 1 is adjusted by the drive cylinder 13 and other components. Whether it is manual adjustment or power-driven adjustment, the operation is relatively simple and convenient for operators to operate and maintain. The bearing housing 16 ensures smooth rotation of the rotating shaft 15, and the limiting column 23 and other components effectively guide and limit the movement of the lifting grid plate 27, making the entire device structurally stable during adjustment and use, less prone to failure, and with a long service life.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification 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 ventilation duct with an adjustable ventilation opening diameter, characterized in that: include An adjustable ventilation duct (1) is fixedly connected at its front end to the rear end of an adjustable ventilation opening (2); The adjustable vent (2) includes a flange frame (21), the front end of which is fixedly connected to the vent grille (22). The upper and lower ends of the rear side of the vent grille (22) are symmetrically provided with limiting posts (23), and the upper and lower ends of the front side of the vent grille (22) are symmetrically provided with sliding grooves (24). The inner side of the symmetrically provided sliding grooves (24) is slidably connected to the symmetrically provided adjustment locking knobs (25).

2. The adjustable ventilation duct according to claim 1, characterized in that: The rear end of the symmetrically arranged adjustment locking knob (25) is connected to the fixing groove (26) by an elastic buckle. The fixing groove (26) is symmetrically arranged at the upper and lower ends of the lifting grid plate (27).

3. The adjustable ventilation duct according to claim 2, characterized in that: The lifting grid plate (27) is provided with U-shaped grooves (28) symmetrically at both the upper and lower ends, and the symmetrically arranged U-shaped grooves (28) are correspondingly arranged with the symmetrically arranged limiting posts (23).

4. The adjustable ventilation duct according to claim 1, characterized in that: The rear end of the flange frame (21) is fixedly connected to the front end of the connecting flange seat (18) by multiple bolts. The rear end of the connecting flange seat (18) is fixedly installed at the front end of the main pipe body (11). A cylinder mounting bracket (12) is fixedly installed on the upper surface of the rear end of the main pipe body (11).

5. The adjustable ventilation duct according to claim 4, characterized in that: A drive cylinder (13) is fixedly installed on the cylinder mounting bracket (12). The front end of the drive cylinder (13) is connected to one end of the connecting rod (14), and the other end of the connecting rod (14) is connected to the upper end of the rotating shaft (15).

6. The adjustable ventilation duct according to claim 5, characterized in that: The upper and lower ends of the rotating shaft (15) are rotatably connected to the bearing seat (16), and the bearing seat (16) is fixedly installed on the upper and lower surfaces of the middle part of the main pipe body (11) in a symmetrical manner. A ventilation regulating plate (17) is fixedly installed on the rotating shaft (15). The ventilation regulating plate (17) is arranged in a ring and is located inside the main pipe body (11).

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