Air volume adjusting device for air outlet of heating ventilation air conditioner

Abstract

The invention relates to the field of airflow adjusting devices, in particular to an air volume adjusting device for an air outlet of a heating ventilation air conditioner. The mounting frame b is fixedly connected to the lower part of the mounting frame a; the central shafts are rotationally connected in the mounting spaces of the mounting frame b; the mounting discs are fixedly connected to two ends of the central shaft; the central blade is fixedly arranged on the central shaft; the unfolding blades are arranged on the central blade in a sliding manner; and the control rod is arranged on the mounting disc. According to the ceiling unit, air supplied by the ceiling unit is collected, the center blades and the unfolding blades are used at the positions of all the air ports to redistribute the air, meanwhile, the total area of the center blades and the unfolding blades is adjustable, air volume adjustment at the different air ports of the ceiling unit is achieved, and the ceiling unit can adapt to wider use requirements; and the use flexibility and the energy-saving performance of the ceiling machine are improved, and the use experience of a user is improved.

Description

Technical Field

[0001] The 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 ceiling-mounted HVAC device that is installed by embedding it in the ceiling to effectively save space. It also 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 machine 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 inner walls may require smaller air volumes. For example, in a room, areas with frequent human activities may require larger air volumes, while areas with less human activities may require smaller air volumes. Therefore, since the ceiling machine cannot achieve precise control of partitions, 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 each air outlet of the current ceiling unit cannot adjust the air volume, the present invention proposes an air volume adjustment device for the air outlet of a heating, ventilation and air conditioning unit, aiming to solve the defect.

[0005] A heating and ventilation air conditioner air outlet air volume adjustment device comprises: an installation frame a, the installation frame a is fixed to the lower part of the heating and ventilation air conditioner; an installation frame b fixedly connected to the lower part of the installation frame a, the installation frame a forms a collecting space between the heating and ventilation air conditioner and the installation frame b, and the installation frame b is provided with installation spaces, the number and positions of the installation spaces correspond to the number and positions of the air outlets of the heating and ventilation air conditioner; a central axis rotatably connected to each installation space of the installation frame b; a mounting plate fixedly connected to both ends of the central axis; a central blade fixedly set on the central axis; an expanded blade slidably set on the central blade, and at least two groups of central blades and expanded blades are set on the central axis; a control rod arranged on the mounting plate, the number of the control rods is consistent with the number of groups of central blades and expanded blades, and each control rod is matched 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 in each center shaft; two transmission shafts rotatably connected in each center 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 meshed with the bevel gear a on the control rod; a thread a is set on the control rod, and the unfolded blades are threadedly connected to the control rod through the thread a.

[0007] To further explain, the central blade includes: a section a fixedly connected to the central axis; a section b rotatably connected to section a; a section c rotatably connected to section b, and section c is slidably 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 arranged on the control rod, and the guide block is threadedly connected to the control rod through the thread b.

[0008] Further description 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, the bevel gears b on the central axes in two adjacent installation spaces are meshed.

[0009] Further description, 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 strip arranged between the eccentric motor and the rotating plate, one end of the connecting strip 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 uses the central blade and the unfolded blade to redistribute the wind at each air outlet position, and at the same time sets the total area of ​​the central blade and the unfolded blade to be adjustable, so as to adjust the air volume 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 saving 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 blade and the unfolded blade. 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 unfolded blades in the present invention.

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

[0018] Figure 5 It is a cross-sectional view of the connection structure of the central shaft, the dual-shaft motor and the 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 is rotated and the control blades are unfolded in the present invention.

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

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

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

[0024] Fig.11 It is a schematic diagram of the connection structure of the installation 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: central axis, 22: mounting plate, 23: central blade, 231: section a, 232: section b, 233: section c, 24: unfolding blades, 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 in conjunction with 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 adjustment device, combined with Figure 1 , Figure 2 and Fig.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, a collecting space for collecting the wind supplied by the ceiling machine is formed between the installation frame a11 and the installation frame b12, and the four sides of the installation frame b12 are provided with installation spaces, and the middle part of the installation frame b12 is provided with a reflux space for air circulation back to the ceiling machine; an inclined guide plate 13 fixedly installed on the installation frame a11, 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 collecting space and the installation space to prevent the wind supplied by the ceiling machine from directly passing through the collecting 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] Combination Figure 2-Figure 7 As shown, it includes: a central axis 21 rotatably installed in each installation space of the installation frame b12; a mounting plate 22 fixedly installed at both ends of the central axis 21; a central blade 23 fixedly set on the central axis 21; an unfolded blade 24 slidably set on the central blade 23, and a total of three groups of central blades 23 and unfolded blades 24 are arranged on the central axis 21; a control rod 25 rotatably installed on the mounting plate 22, and three control rods 25 are arranged, which respectively cooperate with the three groups of central blades 23 and unfolded blades 24.

[0029] Combination 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 ends of each transmission shaft 32 and the ends of the control rod 25, and the bevel gear a33 on the transmission shaft 32 is meshed 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 arranged 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] Combination 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 with the unfolded blade 24; and also includes: a guide block 41 slidably mounted on the mounting plate 22, a track is provided on the guide block 41, and an angle is 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, and the connecting shaft 42 slides in the track of the guide block 41; a thread b43 is provided on the control rod 25, and the guide block 41 is threadedly mounted with 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] Combination 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 meshed, so that the motor 51 can drive all the central shafts 21 to rotate synchronously.

[0032] Combination Figure 1 , Figure 2 , Fig. 9 and Fig.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 mounted on each fixed frame 61 through shaft rotation; 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 meshes 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, and the eccentric motor 65 is provided with a convex shaft driven to rotate eccentrically; a connecting strip 66 arranged between the eccentric motor 65 and the rotating plate 62, the lower end of the connecting strip 66 is rotatably mounted with the shaft of the rotating plate 62 at the innermost position, and the upper part of the connecting strip 66 is provided with a groove, and the convex shaft of the eccentric motor 65 slides in the groove, so that the eccentric motor 65 can control the rotation of the rotating plate 62 by driving the connecting strip 66 to swing.

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

[0034] The dual-axis motor 31 is started, and the control lever 25 is controlled to rotate to control the movement of the expanded blades 24 relative to the central blades 23, so as to adjust the total area of ​​the central blades 23 and the expanded blades 24. Therefore, when the central axis 21 rotates, the central blades 23 and the expanded blades 24 with a larger total area 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 collected in the collecting space by 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 unfolded blades 24 with different total areas after passing through the collection space, and then 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 comprehensive adjustment of the air volume supplied in all directions of the ceiling machine can be realized, thereby improving the flexibility of use of the ceiling machine.

[0036] While the control rod 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 unfolded blade 24, the center blade 23 and the unfolded 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 unfolded 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 energy saving of the ceiling machine; and the bevel gear b52 is used to drive and control the rotation of all the central shafts 21 to optimize the energy use of the device and improve the energy saving effect of the device.

[0038] The eccentric motor 65 is started, and the gear 63 at the innermost position is rotated by swinging the connecting bar 66. 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. Because the wind guided by the unfolded blades 24 and the central blades 23 will eventually be supplied along the rotating plate 62, the angle of the wind supply 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 only 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 should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.

Claims

1. A heating and ventilation air conditioning outlet air volume regulating device, characterized in that: include: An installation frame a (11), the installation frame a (11) being fixed to the lower part of the HVAC; an installation frame b (12) being fixedly connected to the lower part of the installation frame a (11), the installation frame a (11) forming a collecting space for collecting air supplied by the HVAC between the HVAC and the installation frame b (12), and the installation frame b (12) being provided with installation spaces, the number and positions of the installation spaces corresponding to the number and positions of air outlets of the HVAC; a central axis (21) rotatably connected to each installation space of the installation frame b (12); installation plates (22) fixedly connected to both ends of the central axis (21); and a plurality of installation plates (22) fixedly arranged on the central axis. A central blade (23) on a central shaft (21); an expansion blade (24) slidably arranged on the central blade (23), wherein at least two groups of central blades (23) and expansion blades (24) are arranged on the central shaft (21); and a control rod (25) arranged on a mounting plate (22), wherein the number of the control rods (25) is consistent with the number of groups of central blades (23) and expansion blades (24), and each control rod (25) is correspondingly matched with each expansion blade (24) to control the expansion blade (24) to move relative to the central blade (23), thereby changing the total area of ​​the expansion blade (24) and the central blade (23).

2. A HVAC air outlet air volume regulating device according to claim 1, characterized in that: The control rod (25) is rotatably connected to the mounting plate (22); and further comprises: a double-axis motor (31) fixedly connected to each central shaft (21); two transmission shafts (32) rotatably connected to each central shaft (21), the two transmission shafts (32) being respectively fixedly connected to two output shafts of the double-axis motor (31); a bevel gear a (33) respectively fixedly connected to the end of each transmission shaft (32) and the end of each control rod (25), the bevel gear a (33) on the transmission shaft (32) being meshed with the bevel gear a (33) on the control rod (25); and a thread a (34) provided on the control rod (25), the unfolded blade (24) being threadably connected to the control rod (25) via the thread a (34).

3. A HVAC air outlet air volume regulating device as claimed in claim 2, characterized in that: The central blade (23) comprises: a section a (231) fixedly connected to the central shaft (21); a section b (232) rotatably connected to the 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); and further comprises: 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) provided on the control rod (25), the guide block (41) being threadably connected to the control rod (25) via the thread b (43).

4. A HVAC air outlet air volume regulating device as claimed in claim 3, characterized in that: Also includes: A motor (51) fixedly connected to one of the installation spaces of the installation frame b (12), the output shaft of the motor (51) being fixed to the central shaft (21) in the installation space; and a bevel gear b (52) fixedly connected to each central shaft (21), the bevel gears b (52) on the central shafts (21) in two adjacent installation spaces being meshed.

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

6. A HVAC air outlet air volume regulating device as claimed in claim 5, 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), the rack (64) on each fixed frame (61) meshing with the gear (63); an eccentric motor (65) fixedly connected to each installation space of the installation frame b (12), the eccentric motor (65) being provided with a convex shaft driven to rotate eccentrically; and a connecting bar (66) arranged between the eccentric motor (65) and the rotating plate (62), one end of the connecting bar (66) being rotatably connected to the shaft of the rotating plate (62), and the other end being slidably connected to the convex shaft of the eccentric motor (65).

7. The air volume regulating device for HVAC outlet 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.

8. The air volume regulating device for HVAC outlet 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 HVAC.

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