Air volume regulating device for air outlet of heating, ventilation and air conditioning

Abstract

The present invention relates to the field of airflow regulating devices, specifically a heating, ventilation and air conditioning outlet air volume regulating device, comprising: a mounting frame a; a mounting frame b fixedly connected to the lower portion of the mounting frame a; a central shaft rotatably connected to each mounting space of the mounting frame b; a mounting plate fixedly connected to both ends of the central shaft; a central blade fixedly set on the central shaft; an expanded blade slidably set on the central blade; and a control lever set on the mounting plate. The present invention collects the air supplied by the ceiling machine and redistributes the air at each air outlet position using the central blade and the expanded blade, while setting the total area of ​​the central blade and the expanded blade to be adjustable, thereby achieving air volume regulation at different air outlets of the ceiling machine. The present invention enables the ceiling machine to adapt to a wider range of usage needs, improves the flexibility and energy efficiency of the ceiling machine, and enhances the user experience.

Description

Technical Field

[0001] The present invention relates to the field of airflow regulating devices, in particular to an air volume regulating device for an air outlet of a heating, ventilation and air conditioning unit. Background Art

[0002] A ceiling unit is a type of ceiling-mounted HVAC equipment that is installed by embedding it in the ceiling to effectively save space. It achieves large-area, uniform air circulation and temperature control through a multi-directional air outlet design. Ceiling units are widely used in homes, offices, and industrial environments.

[0003] Since all the air outlets of the ceiling fan are supplied with air by the same air duct, the air volume of each air outlet cannot be adjusted as needed. This defect will cause many inconveniences in actual use. For example, in an office space, people at different workstations have different requirements for air volume. Workstations near windows may require larger air volumes, while workstations near interior walls may require smaller air volumes. For another example, in a room, areas with frequent human activities may require larger air volumes, while areas with less human activity may require smaller air volumes. Therefore, since the ceiling fan cannot achieve precise control of zoning, it can only adopt a compromise air volume setting, which not only reduces the flexibility of the equipment, but also leads to energy waste and affects the user experience. Summary of the Invention

[0004] Aiming at the defect that the air outlets of the current ceiling unit cannot adjust the air volume, the present invention proposes an air volume adjustment device for the air outlets of the heating, ventilation and air conditioning, aiming to solve the above defect.

[0005] A heating, ventilation and air conditioning outlet air volume adjustment device comprises: a mounting frame a, which is fixed to the lower part of the heating, ventilation and air conditioning; a mounting frame b fixedly connected to the lower part of the mounting frame a, the mounting frame a forming a collecting space between the heating, ventilation and air conditioning and the mounting frame b, the mounting frame b being provided with mounting spaces, the number and positions of the mounting spaces corresponding to the number and positions of the heating, ventilation and air conditioning outlets; a central shaft rotatably connected to each mounting space of the mounting frame b; a mounting disk fixedly connected to both ends of the central shaft; a central blade fixedly provided on the central shaft; an expanded blade slidably provided on the central blade, the central shaft being provided with at least two groups of central blades and expanded blades; a control lever provided on the mounting disk, the number of the control levers being consistent with the number of groups of central blades and expanded blades, and each control lever correspondingly cooperates with each expanded blade.

[0006] Further explanation: the control rod is rotatably connected to the mounting plate; it also includes: a dual-axis motor fixedly connected to each central shaft; two transmission shafts rotatably connected to each central shaft, the two transmission shafts are respectively fixedly connected to the two output shafts of the dual-axis motor; bevel gears a are respectively fixedly connected to the ends of each transmission shaft and each control rod end, the bevel gear a on the transmission shaft is engaged with the bevel gear a on the control rod; a thread a is provided on the control rod, and the unfolded blades are threadedly connected to the control rod through the thread a.

[0007] To further explain, the center blade includes: a section a fixedly connected to the center axis; a section b rotatably connected to section a; a section c rotatably connected to section b, and section c is slidingly connected to the unfolded blade; and also includes: a guide block slidably connected to the mounting plate; a connecting shaft fixedly connected to both ends of section b, and the connecting shaft is slidably connected to the guide block; and a thread b is provided on the control rod, and the guide block is threadedly connected to the control rod through the thread b.

[0008] Further description also includes: a motor fixedly connected to one of the installation spaces of the installation frame b, the output shaft of the motor is fixed to the central axis in the installation space; a bevel gear b fixedly connected to each central axis, and the bevel gears b on the central axes in two adjacent installation spaces are meshed.

[0009] Further explanation, it also includes: a fixed frame fixedly connected to the lower part of the installation frame b, each fixed frame is respectively arranged under each installation space; and a rotating plate rotatably connected to each fixed frame.

[0010] Further description, it also includes: a gear fixedly connected to the shaft of each rotating plate; a rack slidably connected to the fixed frame, the rack on each fixed frame meshing with the gear; an eccentric motor fixedly connected to each installation space of the installation frame b, the eccentric motor is provided with a convex shaft driven to rotate eccentrically; a connecting bar arranged between the eccentric motor and the rotating plate, one end of the connecting bar is rotatably connected to the shaft of the rotating plate, and the other end is slidably connected to the convex shaft of the eccentric motor.

[0011] Further description, it also includes: an inclined guide plate fixedly connected to the installation frame a, and the inclined guide plate is correspondingly arranged above each installation space.

[0012] Further description, it also includes: a sealing strip fixedly connected to the installation frame a, and the sealing strip is arranged between the installation frame a and the HVAC.

[0013] Compared with the prior art, the present invention has the following advantages: the present invention collects the wind supplied by the ceiling machine and redistributes the wind at each air outlet position using central blades and expanded blades, and at the same time sets the total area of ​​the central blades and expanded blades to be adjustable, thereby achieving air volume adjustment at different air outlets of the ceiling machine. The present invention enables the ceiling machine to adapt to a wider range of usage needs, improves the flexibility and energy efficiency of the ceiling machine, and improves the user experience. The present invention further enhances the ability and effect of the present invention to adjust the air volume by enhancing the difference in the ability to guide the air volume between the central blades and the expanded blades. The present invention optimizes the use of energy by setting a transmission connection between the central shafts, thereby improving the energy-saving effect of the present invention. The present invention enables the rotating plate to adjust the wind supply angle, thereby enhancing the flexibility of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a partial structural cross-sectional view of the present invention.

[0016] Figure 3 It is a schematic diagram of the overall connection structure of the central axis, central blades and expanded blades in the present invention.

[0017] Figure 4 Schematic diagram of the connection structure of the control rod, transmission shaft and bevel gear a in the present invention.

[0018] Figure 5 This is a cross-sectional view of the connection structure of the central shaft, dual-shaft motor and transmission shaft in the present invention.

[0019] Figure 6 It is a schematic diagram of the connection structure between the fan blade group and the guide block in the present invention.

[0020] Figure 7 It is a schematic diagram of the state after the control section b rotates and the control blades are unfolded in the present invention.

[0021] Figure 8 Schematic diagram of the connection structure of the central shaft, motor and bevel gear b in the present invention.

[0022] Figure 9 It is a schematic diagram of the position structure of the fixed frame and the rotating plate in the present invention.

[0023] Figure 10 It is a schematic diagram of the state after the rotating plate is controlled to rotate in the present invention.

[0024] Figure 11 Schematic diagram of the connection structure of the mounting frame a, the inclined guide plate and the sealing strip in the present invention.

[0025] Markings in the accompanying drawings: 11: mounting frame a, 12: mounting frame b, 13: inclined guide plate, 14: sealing strip, 21: center shaft, 22: mounting plate, 23: center blade, 231: section a, 232: section b, 233: section c, 24: unfolding blade, 25: control rod, 31: dual-axis motor, 32: transmission shaft, 33: bevel gear a, 34: thread a, 41: guide block, 42: connecting shaft, 43: thread b, 51: motor, 52: bevel gear b, 61: fixed frame, 62: rotating plate, 63: gear, 64: rack, 65: eccentric motor, 66: connecting strip. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0027] Embodiment: A heating and ventilation air conditioning outlet air volume regulating device, combined with Figure 1 、 Figure 2 and Figure 11 As shown, it includes: an installation frame a11, which is fixedly installed at the lower part of the ceiling machine; an installation frame b12 fixedly installed at the lower part of the installation frame a11, and the installation frame a11 forms a collection space between the ceiling machine and the installation frame b12 for collecting the wind supplied by the ceiling machine, and the four sides of the installation frame b12 are provided with installation spaces, and the middle of the installation frame b12 is provided with a return space for air circulation back to the ceiling machine; an inclined guide plate 13 fixedly installed on the installation frame a11, and four inclined guide plates 13 are provided, which are respectively arranged above the four installation spaces, and the inclined guide plates 13 are used to separate the collection space and the installation space to prevent the wind supplied by the ceiling machine from directly passing through the collection space and the installation space for supply; a sealing strip 14 fixedly installed on the installation frame a11, and the sealing strip 14 is provided between the installation frame a11 and the ceiling machine to improve the installation sealing between the device and the ceiling machine.

[0028] Combine Figure 2-Figure 7 As shown, it includes: a central shaft 21 rotatably installed in each installation space of the installation frame b12; a mounting plate 22 fixedly installed at both ends of the central shaft 21; a central blade 23 fixedly set on the central shaft 21; an expanded blade 24 slidably set on the central blade 23, and a total of three groups of central blades 23 and expanded blades 24 are provided on the central shaft 21; a control rod 25 rotatably installed on the mounting plate 22, and three control rods 25 are provided, which respectively cooperate with the three groups of central blades 23 and expanded blades 24.

[0029] Combine Figure 2-Figure 7As shown, it also includes: a dual-axis motor 31 fixedly installed in each central shaft 21; two transmission shafts 32 rotatably installed in each central shaft 21, and the two transmission shafts 32 are respectively fixedly installed with the two output shafts of the dual-axis motor 31; bevel gears a33 respectively fixedly installed at the end of each transmission shaft 32 and the end of the control rod 25, the bevel gear a33 on the transmission shaft 32 is engaged with the bevel gear a33 on the control rod 25, so that the dual-axis motor 31 can drive all the control rods 25 to rotate synchronously; a thread a34 is provided on the control rod 25, and the unfolding blades 24 are threadedly installed with the control rod 25 through the thread a34, so that the rotation of the control rod 25 can control the unfolding blades 24 to move along the diameter direction of the control rod 25.

[0030] Combine Figure 2-Figure 7 As shown, the central blade 23 includes: a section a231 fixedly mounted on the central shaft 21; a section b232 rotatably mounted on the section a231; a section c233 rotatably mounted on the section b232, and the section c233 is slidably mounted on the unfolded blade 24; and also includes: a guide block 41 slidably mounted on the mounting plate 22, the guide block 41 being provided with a track, and an angle being provided between a straight line where the track is located and a straight line where the moving direction of the guide block 41 is located; a connecting shaft 42 fixedly mounted at both ends of the section b232, the connecting shaft 42 sliding in the track of the guide block 41; a thread b43 provided on the control rod 25, the guide block 41 being threadedly mounted on the control rod 25 through the thread b43, so that the rotation of the control rod 25 can control the guide block 41 to move along the diameter direction of the control rod 25.

[0031] Combine Figure 2 and Figure 8 As shown, it also includes: a motor 51 fixedly installed in one of the installation spaces of the installation frame b12, and the output shaft of the motor 51 is fixed to the central shaft 21 in the installation space; a bevel gear b52 fixedly installed on each central shaft 21, and the bevel gears b52 on the central shafts 21 in two adjacent installation spaces are engaged, so that the motor 51 can drive all the central shafts 21 to rotate synchronously.

[0032] Combine Figure 1 、 Figure 2 、 Figure 9 and Figure 10As shown, it also includes: four fixed frames 61 fixedly mounted on the lower part of the mounting frame b12, and the four fixed frames 61 are respectively located below the four mounting spaces; three rotating plates 62 rotatably mounted on each fixed frame 61; a gear 63 fixedly mounted on the shaft of each rotating plate 62; a rack 64 slidably mounted on the fixed frame 61, the rack 64 on each fixed frame 61 meshing with the gear 63, so that the movement of the rack 64 can control the synchronous rotation of each rotating plate 62 through the gear 63; an eccentric motor 65 fixedly mounted on each mounting space of the mounting frame b12, the eccentric motor 65 being provided with a convex shaft driven to rotate eccentrically; a connecting bar 66 provided between the eccentric motor 65 and the rotating plate 62, the lower end of the connecting bar 66 being rotatably mounted with the shaft of the rotating plate 62 at the innermost position, and the upper part of the connecting bar 66 being provided with a groove, and the convex shaft of the eccentric motor 65 sliding in the groove, so that the eccentric motor 65 can swing by driving the connecting bar 66 to control the rotation of the rotating plate 62.

[0033] Use conventional fixing means to install this device on ceiling fans with different air outlets and different air volume adjustment requirements.

[0034] The dual-axis motor 31 is started, and the control lever 25 is rotated to control the movement of the expanded blades 24 relative to the central blades 23, thereby adjusting the total area of ​​the central blades 23 and the expanded blades 24. Therefore, when the central shaft 21 rotates, the central blades 23 and the expanded blades 24 with larger total areas rotate to guide more wind discharge. Therefore, when the central blades 23 and the expanded blades 24 in the four installation spaces rotate, the wind entering the collecting space from the ceiling machine will be distributed according to the ratio of their total areas.

[0035] Therefore, the air volume blown out by the ceiling machine per unit time will be redistributed by the central blades 23 and the expanded blades 24 with different total areas after passing through the collection space, and will be blown out from the four installation spaces respectively, thereby realizing the control of the air volume in different directions. By controlling and changing the total air volume blown out by the ceiling machine, the air volume supplied in all directions of the ceiling machine can be fully adjusted, thereby improving the flexibility of the use of the ceiling machine.

[0036] While the control lever 25 rotates, it will also control the rotation of the control section b232 to control the bending of the center blade 23. By changing the curvature of the center blade 23 and the expanded blade 24, the center blade 23 and the expanded blade 24 can guide more wind when they rotate, thereby increasing the difference in the ability to guide air volume between each group of center blades 23 and expanded blades 24, improving the ability of the device to adjust the air volume, and improving the adjustment effect of the device.

[0037] By adjusting the air volume of the ceiling machine as needed, the energy consumption of the ceiling machine can be maximized, thereby achieving the purpose of saving energy for the ceiling machine; and the bevel gear b52 is used to drive and control the rotation of all the central shafts 21, thereby optimizing the energy use of the device and improving the energy-saving effect of the device.

[0038] The eccentric motor 65 is started, and by swinging the connecting bar 66, the gear 63 at the innermost position is rotated, and the gear 63 rotates the transmission rack 64 to move, thereby controlling the rotation of all the gears 63 to achieve the unified rotation of the rotating plate 62; and because the wind guided by the unfolded blades 24 and the central blade 23 will eventually be supplied along the rotating plate 62, the wind supply angle can be adjusted by adjusting the angle of the rotating plate 62, thereby improving the flexibility of use of the device.

[0039] The above description is merely an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention are intended to be included within the scope of protection of the present invention. Any content not elaborated in detail herein is already known to those skilled in the art.

Claims

1. A heating, ventilation and air conditioning outlet air volume regulating device, characterized in that: include: The mounting frame a (11) is fixed to the lower portion of the HVAC; A mounting frame b (12) is fixedly connected to the lower portion of the mounting frame a (11), wherein the mounting frame a (11) forms a collecting space for collecting air supplied by the HVAC between the mounting frame b (12), and the mounting frame b (12) is provided with mounting spaces, the number and positions of the mounting spaces corresponding to the number and positions of the HVAC air outlets; Rotating the central shaft (21) connected to each installation space of the installation frame b (12); Mounting plates (22) fixedly connected to both ends of the central shaft (21); A central blade (23) fixedly disposed on the central shaft (21); The expanded blades (24) are slidably arranged on the central blade (23), and at least two groups of central blades (23) and expanded blades (24) are arranged on the central shaft (21); and a control rod (25) provided on the mounting plate (22), wherein the number of the control rods (25) is consistent with the number of groups of the central blades (23) and the unfolded blades (24), and each control rod (25) is matched with each unfolded blade (24) to control the movement of the unfolded blade (24) relative to the central blade (23), thereby changing the total area of ​​the unfolded blade (24) and the central blade (23); The control rod (25) is rotatably connected to the mounting plate (22); It also includes: a dual-axis motor (31) fixedly connected to each central shaft (21); Two transmission shafts (32) are rotatably connected to each central shaft (21), and the two transmission shafts (32) are respectively fixedly connected to the two output shafts of the dual-shaft motor (31); A bevel gear a (33) is fixedly connected to the end of each transmission shaft (32) and the end of each control rod (25), and the bevel gear a (33) on the transmission shaft (32) is meshed with the bevel gear a (33) on the control rod (25); and a thread a (34) provided on the control rod (25), wherein the unfolded blade (24) is threadably connected to the control rod (25) via the thread a (34); The central blade (23) includes: a subsection a (231) fixedly connected to the central shaft (21); Rotating section b (232) connected to section a (231); and a section c (233) rotatably connected to the section b (232), the section c (233) being slidably connected to the unfolded blade (24); It also includes: a guide block (41) slidably connected to the mounting plate (22); A connecting shaft (42) fixedly connected to both ends of the section b (232), the connecting shaft (42) being slidably connected to the guide block (41); And a thread b (43) is provided on the control rod (25), and the guide block (41) is threadedly connected to the control rod (25) through the thread b (43).

2. The HVAC outlet air volume regulating device according to claim 1, characterized in that: Also includes: A motor (51) is fixedly connected to one of the installation spaces of the installation frame b (12), and an output shaft of the motor (51) is fixed to a central shaft (21) in the installation space; And the bevel gears b (52) are fixedly connected to each central shaft (21), and the bevel gears b (52) on the central shafts (21) in two adjacent installation spaces are meshed.

3. The HVAC outlet air volume regulating device according to claim 1, characterized in that: Also includes: A fixing frame (61) fixedly connected to the lower portion of the installation frame b (12), each fixing frame (61) being respectively arranged below each installation space; And a rotating plate (62) connected to each fixed frame (61) is rotated, and the rotating plate (62) is used to change the direction of wind supply.

4. The HVAC outlet air volume regulating device according to claim 3, characterized in that: Also includes: A gear (63) fixedly connected to the shaft of each rotating plate (62); A rack (64) slidably connected to the fixed frame (61), wherein the rack (64) on each fixed frame (61) is meshed with the gear (63); An eccentric motor (65) fixedly connected to each installation space of the installation frame b (12), wherein the eccentric motor (65) is provided with a convex shaft driven to rotate eccentrically; and a connecting bar (66) provided between the eccentric motor (65) and the rotating plate (62), wherein one end of the connecting bar (66) is rotatably connected to the shaft of the rotating plate (62), and the other end is slidably connected to the convex shaft of the eccentric motor (65).

5. The HVAC outlet air volume regulating device according to claim 1, characterized in that: Also includes: An inclined guide plate (13) is fixedly connected to the installation frame a (11), and the inclined guide plate (13) is correspondingly arranged above each installation space.

6. The HVAC air outlet air volume regulating device according to claim 1, characterized in that: Also includes: A sealing strip (14) is fixedly connected to the installation frame a (11), and the sealing strip (14) is arranged between the installation frame a (11) and the heating, ventilation and air conditioning system.

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