A ventilation device capable of adjusting ventilation volume

Abstract

The utility model discloses a ventilation device with adjustable ventilation volume, which relates to the technical field of ventilation equipment, including ventilation equipment and an adjustment component; the ventilation equipment includes a ventilation tube and a fan, a plurality of groups of ventilation plates are circumferentially rotatably arranged on the port of the ventilation tube, a first transmission member is arranged on the ventilation plate, and edges of adjacent ventilation plates overlap each other; the adjustment component includes an adjustment ring rotatably arranged on the tube, a driving member connected to the adjustment ring, and a second transmission member meshing with the first transmission member is arranged on the adjustment ring; the driving member drives the adjustment ring to rotate under the action of an external force, so that the first transmission member drives the second transmission member to rotate, and further the ventilation plates rotate to adjust the spacing between adjacent ventilation plates; by arranging a plurality of groups of ventilation plates overlapping each other, the adjustment ring and the ventilation plates are driven to rotate under the action of the driving member, thereby adjusting the spacing between adjacent ventilation plates, controlling the air volume entering the ventilation tube from the air inlet end of the fan, and thereby adjusting the air volume flowing out of the ventilation tube.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, in particular to a ventilation device capable of adjusting ventilation volume. Background Art

[0002] Ventilation is a building environment control technology that controls the spread and harm of air pollutants by means of air exchange dilution or ventilation exclusion, and ensures the quality of indoor and outdoor air environment. The ventilation system is to realize the ventilation function, including a complete set of devices including air inlets, exhaust outlets, air supply ducts, fans, cooling and heating, filters, control systems and other ancillary equipment.

[0003] The utility model with patent number CN213144812U discloses a ventilation device with adjustable ventilation volume, including a ventilation pipe and a mounting box, an annular bracket is fixedly installed inside the ventilation pipe, a connecting sleeve is movably installed on the inner side of the annular bracket, a bolt extending to the right side of the annular bracket is movably installed on the left side of the connecting sleeve, a fan sleeve is fixedly installed on the inner side of the connecting sleeve, a fan motor is fixedly installed on the inner side of the fan sleeve, a fan blade is fixedly installed on the outer side of the output shaft of the fan motor, a motor is fixedly installed inside the mounting box, a screw rod is fixedly installed on the top of the output shaft of the motor, a bearing seat is fixedly installed on the end of the screw rod away from the motor, a screw rod sleeve is movably installed on the outer side of the screw rod, a connecting rod is fixedly installed on the left side of the screw rod sleeve, and the connecting rod is away from the screw rod sleeve. A lifting plate extending to the inner side of the ventilation duct is fixedly installed at one end, a rubber pad is fixedly installed on the top of the lifting plate, and a rubber pad seat is movably installed above the rubber pad and on the inner side of the ventilation duct; the wind speed of the ventilation can be adjusted by setting the rotation speed of the fan motor, and the ventilation area inside the ventilation duct can be adjusted at the same time, thereby achieving the purpose of adjustable ventilation volume. In this patent, when the ventilation area in the ventilation duct is adjusted to change the ventilation volume, when the area in the ventilation duct is small, the ventilation volume input by the fan is blocked by the lifting plate. Although the area in the ventilation duct is reduced, when the airflow passes through the lifting plate, the pressure of the airflow increases, which increases the flow rate of the airflow. When the air volume at the air inlet end of the fan remains unchanged, only the flow rate increases, and the air volume flowing out through the ventilation duct through the lifting plate does not change. Utility Model Content

[0004] The main purpose of the utility model is to provide a ventilation device with adjustable ventilation volume, which is used to solve the problem that the ventilation volume will not be changed when the ventilation device adjusts the inner area of ​​the ventilation pipe through a lifting plate.

[0005] To achieve the above object, the utility model provides a ventilation device with adjustable ventilation volume, comprising:

[0006] A ventilation device comprises a ventilation tube and a fan arranged in the ventilation tube; a plurality of ventilation plates are arranged on the port of the ventilation tube so as to rotate in the circumferential direction; a first transmission member is arranged on the ventilation plates, and the edges of adjacent ventilation plates overlap each other so as to close the end of the ventilation tube;

[0007] The adjustment assembly includes an adjustment ring rotatably arranged on the cylinder and a driving member connected to the adjustment ring; the adjustment ring is provided with a second transmission member meshing with the first transmission member; the driving member drives the adjustment ring to rotate under the action of external force, so that the first transmission member drives the second transmission member to rotate, thereby causing the ventilation plate to rotate to adjust the spacing between adjacent ventilation plates.

[0008] As a further improvement of the utility model, a support frame is provided in the port of the ventilation duct, and a transmission groove is provided on the end face of the ventilation duct; a rotating disk is provided on the support frame; rotating shafts are respectively provided at both ends of the ventilation plate; the rotating shafts are respectively rotatably installed in the transmission groove and the rotating disk.

[0009] As a further improvement of the utility model, a groove is provided on the right side of the end face of the ventilation plate facing the fan, and a slope matching the groove is provided on the left side of the end face of the ventilation plate away from the fan. The slopes between adjacent ventilation plates match the grooves, and the adjacent ventilation plates rotate in the same direction.

[0010] As a further improvement of the present invention, the first transmission member includes a transmission gear fixedly disposed in the transmission groove and fixedly connected to the rotating shaft in the transmission groove; the second transmission member includes an active gear ring disposed on the adjustment ring and meshing with the transmission gear.

[0011] As a further improvement of the utility model, a convex ring is provided on the outer wall of the end of the ventilator; a connecting ring is provided on the adjusting ring; the height of the connecting ring is greater than the height of the convex ring, and a detachable limiting plate is provided on the connecting ring; the connecting ring and the limiting plate are respectively matched with the convex ring in a clearance.

[0012] As a further improvement of the utility model, the driving member includes a driving motor; the driving motor is provided with a driving wheel; the outer wall of the adjusting ring is provided with gear teeth; the driving wheel is meshed with the gear teeth.

[0013] The beneficial effects of the utility model are embodied in:

[0014] By setting up multiple groups of overlapping ventilation plates, the adjustment ring and the ventilation plates are driven to rotate under the action of the driving member, so as to adjust the distance between adjacent ventilation plates, control the air volume entering the ventilation duct from the air inlet end of the fan, and thus adjust the air volume flowing out of the ventilation duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of a ventilation device with adjustable ventilation volume;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of a ventilation device capable of adjusting the ventilation volume;

[0017] Figure 3 A schematic diagram of the cross-sectional structure of a ventilation tube of a ventilation device capable of adjusting the ventilation volume;

[0018] Figure 4 A schematic diagram of the cross-sectional structure of an adjustment ring of a ventilation device capable of adjusting the ventilation volume;

[0019] Figure 5 A schematic diagram of the structure of a ventilation plate of a ventilation device capable of adjusting the ventilation volume;

[0020] Description of reference numerals:

[0021] 1. Ventilation duct; 2. Fan; 3. Ventilation plate; 4. First transmission member; 5. Adjustment ring; 6. Driving member; 7. Second transmission member; 8. Support frame; 9. Transmission groove; 10. Rotating plate; 11. Rotating shaft; 12. Through hole; 13. Groove; 14. Inclined surface; 15. Convex ring; 16. Connecting ring; 17. Limiting plate; 18. Gear teeth; 19. Driving wheel. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] In one embodiment, see Figure 1 , 2 The utility model discloses a ventilation device with adjustable ventilation volume, comprising ventilation equipment and an adjustment component.

[0024] Among them, the ventilation equipment includes a ventilation tube 1 and a fan 2 arranged in the ventilation tube 1. A plurality of ventilation plates 3 are circumferentially rotated on the port of the ventilation tube 1. A first transmission member 4 is arranged on the ventilation plate 3. The edges of adjacent ventilation plates 3 overlap each other so that the end of the ventilation tube 1 is closed; the adjustment component includes an adjustment ring 5 rotatably arranged on the through tube and a driving member 6 connected to the adjustment ring 5. The adjustment ring 5 is provided with a second transmission member 7 meshing with the first transmission member 4; the driving member 6 drives the adjustment ring 5 to rotate under the action of external force, so that the first transmission member 4 drives the second transmission member 7 to rotate, thereby causing the ventilation plate 3 to rotate to adjust the spacing between adjacent ventilation plates 3.

[0025] For further information, see Figure 1 A support frame 8 is provided in the port of the ventilator 1, and a transmission groove 9 is provided on the end surface of the ventilator 1; a rotating disk 10 is provided on the support frame 8; rotating shafts 11 are respectively provided at both ends of the ventilation plate 3, and the rotating shafts 11 are rotatably installed in the transmission groove 9 and the rotating disk 10 respectively.

[0026] Preferably, the support frame 8 is in a cross shape, one end of the support frame 8 is fixedly connected to the inner wall of the ventilator 1 , and the rotating disk 10 is located at the center of the cross of the support frame 8 .

[0027] Preferably, a rotating hole is provided on the transmission disk, and a through hole 12 penetrating the transmission groove 9 is provided on the inner wall of the ventilator 1. The rotating shafts 11 at both ends of the ventilation plate 3 are rotatably installed in the rotating hole and the through hole 12 respectively, and one end of the rotating shaft 11 located in the through hole 12 is transmitted into the transmission groove 9.

[0028] In the above arrangement, the support frame 8 is installed in the ventilation duct 1 , and the axis center of the rotating disk 10 coincides with the axis center of the rotating disk 10 , providing support for the ventilation plate 3 .

[0029] For further information, see Figure 5 A groove 13 is provided on the right side of the end surface of the ventilation plate 3 facing the fan 2, and a slope 14 matching the groove 13 is provided on the left side of the end surface of the ventilation plate 3 away from the fan 2. The slopes 14 between adjacent ventilation plates 3 match the groove 13, and the adjacent ventilation plates 3 rotate in the same direction.

[0030] Preferably, the rotating shaft 11 is located at the radial center of the end of the ventilation plate 3, the ventilation plate 3 is divided into two along the radial center, and the groove 13 and the inclined surface 14 are respectively located on the staggered end surfaces of the two end surfaces of the ventilation plate 3.

[0031] In the above arrangement, when adjacent ventilation plates 3 rotate in the same direction (that is, all ventilation plates 3 rotate in the same direction, and in the present embodiment, ventilation plates 3 rotate counterclockwise), during the counterclockwise rotation of ventilation plates 3, inclined surfaces 14 and grooves 13 gradually move away from each other, thereby increasing the spacing between adjacent ventilation plates 3 and adjusting the ventilation volume of ventilation duct 1 to increase, and vice versa, adjusting the ventilation volume in ventilation duct 1 to decrease.

[0032] For further information, see Figure 3 , 4 The first transmission member 4 includes a transmission gear fixedly disposed in the transmission groove 9 and fixedly connected to the rotating shaft 11 in the transmission groove 9; the second transmission member 7 includes an active gear ring disposed on the adjustment ring 5 and meshing with the transmission gear.

[0033] Preferably, there is a spacing between adjacent transmission gears, and the adjacent transmission gears are located on the same virtual circular trajectory.

[0034] In the above arrangement, the active gear ring rotates and meshes with the transmission gear, thereby driving the transmission gear to rotate, and the transmission gear drives the rotating shaft 11 to rotate respectively, so that adjacent ventilation plates 3 rotate to adjust the distance between adjacent ventilation plates 3 and control the ventilation volume in the ventilation duct 1.

[0035] For further information, see Figure 2 A convex ring 15 is provided on the outer wall of the end of the ventilator 1, and a connecting ring 16 is provided on the adjusting ring 5. The height of the connecting ring 16 is greater than the height of the convex ring 15. A detachable limiting plate 17 is provided on the connecting ring 16. The connecting ring 16 and the limiting plate 17 are respectively matched with the convex ring 15 in a clearance.

[0036] Preferably, the limiting plate 17 is "L"-shaped, and the short side end of the limiting plate 17 is connected to the connecting ring 16 through a stud, the inner wall of the short side end of the limiting plate 17 is gap-matched with the top outer wall of the convex ring 15, and the inner wall of the long side end of the limiting plate 17 is gap-matched with the end face of the convex ring 15 away from the connecting ring 16.

[0037] For further information, see Figure 4 The driving member 6 includes a driving motor, on which a driving wheel 19 is provided; on the outer wall of the adjusting ring 5 , gear teeth 18 are provided, and the driving wheel 19 meshes with the gear teeth 18 .

[0038] Preferably, the output end of the driving motor is connected to the driving wheel 19 .

[0039] In the above arrangement, the driving motor rotates to drive the driving wheel 19, and the driving wheel 19 engages with the gear teeth 18 to drive the adjusting ring 5 to rotate along the convex ring 15. The adjusting ring 5 drives the driving gear ring to rotate, thereby causing the transmission gear to rotate and the ventilation plate 3 to rotate accordingly.

[0040] In this embodiment, the driving motor rotates counterclockwise, driving the adjustment ring 5 to rotate clockwise, and the active gear ring rotates clockwise accordingly. Driven by the active gear ring, the transmission gear rotates counterclockwise, thereby driving the adjacent ventilation plates 3 to rotate, and then adjusting the spacing between the adjacent ventilation plates 3, thereby adjusting the ventilation volume of the ventilation equipment.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ventilation device with adjustable ventilation volume, characterized in that: include: A ventilation device comprises a ventilation tube (1) and a fan (2) arranged in the ventilation tube (1); a plurality of ventilation plates (3) are rotatably arranged on the port of the ventilation tube (1) in a circumferential direction; a first transmission member (4) is arranged on the ventilation plates (3); the edges of adjacent ventilation plates (3) overlap each other so that the end of the ventilation tube (1) is closed; The adjusting assembly comprises an adjusting ring (5) rotatably arranged on a through tube and a driving member (6) connected to the adjusting ring (5); the adjusting ring (5) is provided with a second transmission member (7) meshing with a first transmission member (4); the driving member (6) drives the adjusting ring (5) to rotate under the action of an external force, so that the first transmission member (4) drives the second transmission member (7) to rotate, thereby causing the ventilation plates (3) to rotate to adjust the spacing between adjacent ventilation plates (3).

2. A ventilation device with adjustable ventilation volume according to claim 1, characterized in that: A support frame (8) is provided in the port of the ventilation tube (1), and a transmission groove (9) is provided on the end surface of the ventilation tube (1); a rotating disk (10) is provided on the support frame (8); rotating shafts (11) are respectively provided at both ends of the ventilation plate (3); and the rotating shafts (11) are rotatably mounted in the transmission groove (9) and the rotating disk (10).

3. A ventilation device with adjustable ventilation volume according to claim 2, characterized in that: The right side of the end surface of the ventilation plate (3) facing the fan (2) is provided with a groove (13), and the left side of the end surface of the ventilation plate (3) away from the fan (2) is provided with an inclined surface (14) that matches the groove (13), the inclined surfaces (14) between adjacent ventilation plates (3) match the groove (13), and the adjacent ventilation plates (3) rotate in the same direction.

4. A ventilation device with adjustable ventilation volume according to claim 3, characterized in that: The first transmission member (4) comprises a transmission gear fixedly arranged in the transmission groove (9) and fixedly connected to the rotating shaft (11) in the transmission groove (9); the second transmission member (7) comprises an active gear ring arranged on the adjustment ring (5) and meshing with the transmission gear.

5. A ventilation device with adjustable ventilation volume according to claim 4, characterized in that: A convex ring (15) is provided on the outer wall of the end of the ventilation tube (1); a connecting ring (16) is provided on the adjusting ring (5); the height of the connecting ring (16) is greater than the height of the convex ring (15), and a detachable limiting plate (17) is provided on the connecting ring (16); the connecting ring (16) and the limiting plate (17) are respectively fitted with the convex ring (15) with clearance.

6. A ventilation device with adjustable ventilation volume according to claim 5, characterized in that: The driving member (6) comprises a driving motor; a driving wheel (19) is provided on the driving motor; gear teeth (18) are provided on the outer wall of the adjusting ring (5); and the driving wheel (19) meshes with the gear teeth (18).

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