Ventilation device with adjustable ventilation flow

Abstract

The utility model relates to the technical field of ventilation devices, and discloses a ventilation device with adjustable ventilation flow, which solves the problems that the ventilation flow is inconvenient to adjust in the use process of the ventilation device, certain limitation exists, and better practicability is inconvenient to achieve, and comprises a ventilation pipeline, a first dustproof net plate is fixedly installed at one end of the ventilation pipeline, a second dustproof net plate is fixedly installed at the other end of the ventilation pipeline, a fan is fixedly installed in the ventilation pipeline, a circular adjusting plate is further arranged in the ventilation pipeline, and a shaft rod is fixedly installed in the circular adjusting plate in a penetrating mode. The two ends of the shaft rod are rotationally connected with the inner wall of the ventilation pipeline, and an adjusting assembly is fixedly installed on the outer side of the ventilation pipeline. According to the ventilation device, the ventilation flow can be conveniently adjusted in the using process of the ventilation device, the limitation of the device is reduced, and therefore better practicability can be conveniently achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ventilation devices, in particular to a ventilation device with adjustable ventilation flow. Background Art

[0002] Ventilation is a technology that uses natural or mechanical methods to allow wind to pass through unhindered and reach a room or a sealed environment to create a hygienic, safe and suitable air environment. Ventilation can improve indoor air quality and is beneficial to health. When performing ventilation operations, ventilation devices are required. However, during the use of ventilation devices, it is not convenient to adjust the ventilation flow rate and there are certain limitations, which makes it difficult to achieve better practicality. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the existing technology, the present invention provides a ventilation device with adjustable ventilation flow, which effectively solves the problem that the ventilation device is inconvenient to adjust the ventilation flow during use, has certain limitations, and is not convenient to achieve better practicality.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ventilation device with adjustable ventilation flow, comprising a ventilation duct, a first dustproof screen fixedly installed at one end of the ventilation duct, a second dustproof screen fixedly installed at the other end of the ventilation duct, a fan fixedly installed inside the ventilation duct, a circular adjustment plate is also provided inside the ventilation duct, a shaft rod is fixedly installed through the inside of the circular adjustment plate, and both ends of the shaft rod are rotatably connected to the inner wall of the ventilation duct, an adjustment component is fixedly installed on the outside of the ventilation duct, and one end of the shaft rod extends to the outside of the ventilation duct and is connected to the adjustment component.

[0005] Preferably, the adjustment assembly includes a mounting plate, and connecting blocks are fixedly installed on the four corners of the mounting plate close to the ventilation duct, and the connecting block is fixedly connected to the outside of the ventilation duct on the side away from the mounting plate. A shell is fixedly installed on the side of the mounting plate away from the ventilation duct, and one end of the shaft rod movably passes through and extends to the interior of the shell, an adjustment motor is fixedly installed on one side of the shell, a threaded rod is provided inside the shell, and one end of the threaded rod is rotatably connected to the inner wall of the shell, and a locating bearing is rotatably installed on the other end of the threaded rod, and the locating bearing is fixedly installed on the inner top of the shell, the output shaft of the adjustment motor movably passes through one side of the shell and is fixedly connected to one end of the threaded rod, and the interior of the shell A threaded sleeve is installed on the outer side of the threaded rod, and a transmission rack is fixedly installed on the bottom of the threaded sleeve. The bottom of the transmission rack away from the threaded sleeve is meshed with a transmission gear, and the transmission gear is fixedly installed on the outside of one end of the shaft rod located inside the shell. A circular plate is provided on the side of the shell away from the mounting plate, and a connecting rod is fixedly installed on the middle part of the side of the circular plate close to the shell, and the end of the connecting rod away from the circular plate movably passes through and extends to the interior of the shell and is fixedly connected to the shaft rod. An arc-shaped positioning groove is opened inside the circular plate, and the arc of the arc-shaped positioning groove is ninety degrees. A positioning column is installed slidingly through the interior of the arc-shaped positioning groove, and one end of the positioning column is fixedly connected to the outer side of the shell.

[0006] Preferably, a positioning slider is fixedly installed on the top of the threaded sleeve, a positioning slot is opened through the top of the shell, and the positioning slider is slidably installed inside the positioning slot.

[0007] Preferably, a mounting bracket is fixedly installed on the outer side of one end of the ventilation duct, and threaded mounting seats are fixedly installed through the four corners of the mounting bracket.

[0008] Compared with the prior art, the beneficial effects of the present invention are:

[0009] 1) During operation, the ventilation duct, the first dust screen, the second dust screen, the fan, the circular adjustment plate, the shaft, and the adjustment assembly interact with each other to facilitate adjustment of the ventilation flow rate of the ventilation device during use, thereby reducing the limitations of the device and achieving better practicality;

[0010] 2) During operation, the interaction between the mounting bracket and the threaded mounting seat facilitates the fixing of the device during use, facilitating operation while ensuring that the device can operate stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0012] In the attached figure:

[0013] Figure 1 This is a schematic structural diagram of a ventilation device with adjustable ventilation flow rate according to the present invention;

[0014] Figure 2 This is a schematic diagram of the internal structure of the ventilation duct of the present invention;

[0015] Figure 3 This is a schematic structural diagram of a circular adjustment plate of the present utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the adjustment component of the utility model;

[0017] Figure 5 This is a schematic diagram of the internal structure of the shell of the present utility model;

[0018] Figure 6 This is a schematic diagram of the circular plate structure of the present utility model.

[0019] In the figure: 1. Ventilation duct; 2. First dustproof screen; 3. Second dustproof screen; 4. Fan; 5. Circular adjustment plate; 6. Shaft; 7. Adjustment assembly; 8. Mounting plate; 9. Connecting block; 10. Housing; 11. Adjustment motor; 12. Threaded rod; 13. Positioning bearing; 14. Threaded sleeve; 15. Transmission rack; 16. Transmission gear; 17. Circular plate; 18. Connecting rod; 19. Arc-shaped positioning groove; 20. Positioning column; 21. Positioning slider; 22. Positioning slide; 23. Mounting bracket; 24. Threaded mounting seat. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] Embodiment 1, by Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6The utility model includes a ventilation duct 1, one end of the ventilation duct 1 is fixedly installed with a first dustproof screen plate 2, the other end of the ventilation duct 1 is fixedly installed with a second dustproof screen plate 3, the interior of the ventilation duct 1 is fixedly installed with a fan 4, the interior of the ventilation duct 1 is further provided with a circular adjustment plate 5, the interior of the circular adjustment plate 5 is fixedly penetrated with a shaft rod 6, and both ends of the shaft rod 6 are rotatably connected to the inner wall of the ventilation duct 1, an adjustment component 7 is fixedly installed on the outside of the ventilation duct 1, and one end of the shaft rod 6 extends to the outside of the ventilation duct 1 and is connected to the adjustment component 7, a mounting bracket 23 is fixedly installed on the outside of one end of the ventilation duct 1, and threaded mounting seats 24 are fixedly penetrated and installed on the four corners of the mounting bracket 23;

[0022] The adjusting assembly 7 includes a mounting plate 8, and connecting blocks 9 are fixedly installed on the four corners of the mounting plate 8 close to the ventilation duct 1, and the connecting block 9 is fixedly connected to the outside of the ventilation duct 1 on the side away from the mounting plate 8. A shell 10 is fixedly installed on the side of the mounting plate 8 away from the ventilation duct 1, and one end of the shaft 6 movably passes through and extends to the interior of the shell 10. An adjusting motor 11 is fixedly installed on one side of the shell 10, and a threaded rod 12 is provided inside the shell 10, and one end of the threaded rod 12 is rotatably connected to the inner wall of the shell 10, and a locating bearing 13 is rotatably installed on the other end of the threaded rod 12, and the locating bearing 13 is fixedly installed on the inner top of the shell 10, the output shaft of the adjusting motor 11 movably passes through one side of the shell 10 and is fixedly connected to one end of the threaded rod 12, a threaded sleeve 14 is threadedly installed inside the shell 10 and on the outer side of the threaded rod 12, and a positioning slide is fixedly installed on the top of the threaded sleeve 14 Block 21, a positioning slot 22 is provided on the top of the shell 10, and the positioning slider 21 slides through and is installed inside the positioning slot 22, and a transmission rack 15 is fixedly installed on the bottom of the threaded sleeve 14, and the bottom of the end of the transmission rack 15 away from the threaded sleeve 14 is meshed with a transmission gear 16, and the transmission gear 16 is fixedly installed on the outside of one end of the shaft 6 located inside the shell 10, and a circular plate 17 is provided on the side of the shell 10 away from the mounting plate 8, and a connecting rod 18 is fixedly installed on the middle part of the side of the circular plate 17 close to the shell 10, and the connecting rod 18 is movably passed through and extended to the interior of the shell 10 and fixedly connected to the shaft 6, an arc-shaped positioning slot 19 is provided inside the circular plate 17, and the arc of the arc-shaped positioning slot 19 is ninety degrees, and a positioning column 20 is slidably installed inside the arc-shaped positioning slot 19, and one end of the positioning column 20 is fixedly connected to the outside of the shell 10.

[0023] During use, through the interaction of the ventilation duct 1, the first dustproof screen plate 2, the second dustproof screen plate 3, the fan 4, the circular adjustment plate 5, the shaft 6 and the adjustment assembly 7, the ventilation device can be used to adjust the ventilation flow, reduce the limitations of the device, and thus achieve better practicality. In addition, through the interaction of the mounting frame 23 and the threaded mounting seat 24, the device can be fixed during use, which is convenient for operation and ensures that the device can work stably.

[0024] Working principle: When working, the adjusting motor 11 is started to drive the threaded rod 12 to rotate, the threaded rod 12 drives the threaded sleeve 14 to move, and the threaded sleeve 14 drives the positioning slider 21 to slide inside the positioning slot 22, which can ensure that the threaded sleeve 14 achieves better stability when moving. At the same time, the threaded sleeve 14 drives the transmission rack 15 to move, the transmission rack 15 drives the transmission gear 16 to rotate, the transmission gear 16 drives the shaft 6 to rotate, the shaft 6 drives the connecting rod 18 to rotate, and the connecting rod 18 drives the circular plate 17 to rotate. The circular plate 17 moves outside the positioning column 20 through the arc-shaped positioning groove 19. At the same time, the shaft 6 drives the circular adjustment plate 5 to rotate. By observing the movement of the circular plate 17 outside the positioning column 20, the movement trajectory of the circular adjustment plate 5 inside the ventilation duct 1 can be indicated. The ventilation flow rate can be adjusted by the movement of the circular adjustment plate 5. After the required ventilation flow rate is reached, the adjusting motor 11 can be stopped. In this way, the ventilation flow rate can be easily adjusted during use of the ventilation device, reducing the limitations of the device and thus achieving better practicality.

Claims

1. A ventilation device with adjustable ventilation flow, comprising a ventilation duct (1), characterized in that: A first dustproof screen (2) is fixedly installed at one end of the ventilation duct (1), a second dustproof screen (3) is fixedly installed at the other end of the ventilation duct (1), a fan (4) is fixedly installed inside the ventilation duct (1), a circular adjustment plate (5) is also provided inside the ventilation duct (1), a shaft (6) is fixedly installed through the inside of the circular adjustment plate (5), and both ends of the shaft (6) are rotatably connected to the inner wall of the ventilation duct (1), an adjustment component (7) is fixedly installed on the outside of the ventilation duct (1), and one end of the shaft (6) extends to the outside of the ventilation duct (1) and is connected to the adjustment component (7).

2. A ventilation device with adjustable ventilation flow according to claim 1, characterized in that: The adjustment assembly (7) comprises a mounting plate (8), and the four corners of the mounting plate (8) close to the ventilation duct (1) are fixedly mounted with connecting blocks (9), and the side of the connecting block (9) away from the mounting plate (8) is fixedly connected to the outside of the ventilation duct (1), and the side of the mounting plate (8) away from the ventilation duct (1) is fixedly mounted with a shell (10), and one end of the shaft (6) movably passes through and extends to the inside of the shell (10), and an adjustment motor (11) is fixedly mounted on one side of the shell (10), and a threaded rod (12) is provided inside the shell (10), and one end of the threaded rod (12) is rotatably connected to the inner wall of the shell (10), and a positioning bearing (13) is rotatably mounted on the other end of the threaded rod (12), and the positioning bearing (13) is fixedly mounted on the top end of the inner part of the shell (10), and the output shaft of the adjustment motor (11) movably passes through one side of the shell (10) and is fixedly connected to one end of the threaded rod (12), and the inside of the shell (10) and located at the threaded rod (12) are fixedly mounted on the top end of the inner part of the shell (10). The outer thread of the rod (12) is installed with a threaded sleeve (14), and the bottom of the threaded sleeve (14) is fixedly installed with a transmission rack (15). The bottom of the end of the transmission rack (15) away from the threaded sleeve (14) is meshed with a transmission gear (16), and the transmission gear (16) is fixedly installed on the outer side of the end of the shaft (6) located inside the housing (10). A circular plate (17) is provided on the side of the housing (10) away from the mounting plate (8). The circular plate (17) is close to the housing (10). A connecting rod (18) is fixedly installed in the middle of one side, and the end of the connecting rod (18) away from the circular plate (17) is movably penetrated and extended to the interior of the shell (10) and fixedly connected to the shaft rod (6). An arc-shaped positioning groove (19) is opened through the interior of the circular plate (17), and the arc of the arc-shaped positioning groove (19) is ninety degrees. A positioning column (20) is slidably installed inside the arc-shaped positioning groove (19), and one end of the positioning column (20) is fixedly connected to the outer side of the shell (10).

3. A ventilation device with adjustable ventilation flow according to claim 2, characterized in that: A positioning slide block (21) is fixedly installed on the top of the threaded sleeve (14), a positioning slot (22) is provided through the top of the housing (10), and the positioning slide block (21) is slidably installed inside the positioning slot (22).

4. The ventilation device with adjustable ventilation flow according to claim 1, characterized in that: A mounting frame (23) is fixedly installed on the outside of one end of the ventilation duct (1), and threaded mounting seats (24) are fixedly installed and penetrated through the four corners of the mounting frame (23).

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