Air duct structure of central air conditioning system

Abstract

The utility model discloses an air duct structure of a central air conditioning system, which comprises an air inducing pipe and a moving plate, a ventilation opening is arranged at the bottom of the air inducing pipe, a moving mechanism is arranged between the moving plate and the air inducing pipe, the moving plate covers the ventilation opening, and the moving plate moves linearly through the moving mechanism. An air outlet is formed in the bottom of the movable plate; the whole shutter is mounted in the air outlet; and the sealing mechanism is arranged in the ventilation opening, and the moving mechanism comprises a driving mechanism, a shifting mechanism, a first threaded rod and a second threaded rod. The air flow flows to the air outlet of the moving plate through the ventilation opening, the moving plate moves linearly through the moving mechanism, so that the flowing direction of the air flow of the air conditioner is changed, the whole operation mode is simple and fast, and the moving mechanism is simple in structure and convenient to maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of air duct structures, in particular to an air duct structure of a central air-conditioning system. Background Art

[0002] Air conditioners are commonly used in modern society to regulate indoor air temperature. With the progress of social modernization, most households or shopping malls in cities have installed air conditioners indoors. The air conditioners used by households are called household air conditioners, which include an outdoor unit and an indoor unit, which are connected by pipes; while those used in shopping malls or garages are generally central air conditioners, which include a central air conditioner host located in the machine room and a duct body connected to the host and distributed from the ceiling to each place that needs ventilation.

[0003] In factories, air ducts are generally used for air extraction. Since the position of the air outlet at the bottom of the air duct cannot be adjusted, if the equipment below or the operator moves to other positions, the temperature control effect of the central air conditioner on the air around the equipment will be reduced because the air outlet position cannot be moved. Utility Model Content

[0004] The utility model aims to provide an air duct structure for a central air-conditioning system to solve the technical problem that in the prior art, air ducts are generally used for air induction, and since the position of the air outlet at the bottom of the air duct cannot be adjusted, if the equipment below or the operator moves to other positions, the air outlet position cannot be moved, resulting in a reduction in the temperature control effect of the central air-conditioning on the air around the equipment.

[0005] The utility model provides an air duct structure of a central air conditioning system, comprising an air duct, a vent is provided at the bottom of the air duct, and further comprising:

[0006] A movable plate, wherein a movable mechanism is provided between the movable plate and the air duct, and the movable plate covers the vent, the movable plate moves linearly through the movable mechanism, and an air outlet is provided at the bottom of the movable plate;

[0007] A shutter, wherein the entire shutter is installed in the air outlet;

[0008] A sealing mechanism is disposed in the vent.

[0009] Preferably, the moving mechanism includes a driving mechanism, a toggle mechanism, a first threaded rod and a second threaded rod, a pair of first support blocks and a pair of second support blocks are fixed to the bottom of the air duct, a first rotating hole is opened on the outer side of the first support block, the outer side of the first threaded rod is installed in the first rotating hole through a bearing, a second rotating hole is opened on the outer side of the second support block, the outer side of the second threaded rod is installed in the second rotating hole through a bearing, the moving plate is threadedly sleeved on the first threaded rod and the second threaded rod, a synchronization mechanism is arranged between the first threaded rod and the second threaded rod to make the two rotate synchronously, the toggle mechanism is independently arranged, and the toggle mechanism makes the first threaded rod rotate axially through the driving mechanism.

[0010] Preferably, the synchronization mechanism comprises two synchronization wheels and a synchronization belt sleeved on the two synchronization wheels, and the two synchronization wheels are coaxially fixed to the first threaded rod and the second threaded rod respectively.

[0011] Preferably, the driving mechanism includes a first bevel gear, a second bevel gear, a rotating column and a fixed frame, the fixed frame is fixed to the air duct, a third rotating hole is opened on the outer side of the fixed frame, the outer side of the rotating column is rotatably installed in the third rotating hole through a bearing, the first bevel gear is coaxially fixed to the first threaded rod, the second bevel gear is coaxially fixed to the rotating column, and the first bevel gear and the second bevel gear are meshed.

[0012] Preferably, the toggle mechanism includes a transmission rod, a grip tube, a hexagonal head and a bending handle. The transmission rod is rotatably installed in the grip tube through a bearing. The two ends of the transmission rod are respectively fixed to the hexagonal head and the bending handle. One end of the rotating column is provided with an inner hexagonal groove adapted to the hexagonal head.

[0013] Preferably, the sealing mechanism includes two reference plates and two rotating rollers, the two reference plates are respectively located on both sides of the vent, a plurality of reset mechanisms are arranged between the reference plate and the air duct, the reset mechanism includes a fixed plate, a double-section telescopic cylinder and a reset spring, the fixed plate is fixed to the reference plate, the two ends of the double-section telescopic cylinder are respectively fixed to the air duct and the fixed plate, the reset spring is sleeved on the double-section telescopic cylinder, the two ends of the rotating roller are respectively rotatably mounted on the reference plate, a rubber layer is sleeved and fixed on the outer side of the rotating roller, two rubber belts are jointly sleeved on the outer sides of the two rotating rollers, a plurality of extrusion wheels are rotatably mounted on the outer walls of the opposite sides of the two reference plates, and the extrusion wheels are in contact with the rubber belts.

[0014] Preferably, guide plates are provided on both sides of the movable plate, the guide plates are fixed to the air duct, a slide groove is provided on the outer side of the guide plate, a pulley is slidably provided inside the slide groove, and the wheel axle of the pulley is rotatably mounted on the movable plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The airflow of the air conditioner is introduced into the duct, and the airflow flows to the air outlet of the movable plate through the vent. The movable plate moves linearly through the moving mechanism, thereby changing the flow direction of the airflow of the air conditioner. The entire operation is simple and fast, and the structure of the moving mechanism is simple and easy to maintain.

[0017] (2) The rotating roller contacts the moving plate, and the rubber belt improves the fit between the rotating roller and the moving plate, thereby improving the sealing. Each extrusion wheel makes the rubber belt fit better with the moving plate, further improving the sealing. At the same time, when the moving plate moves, the rotating roller rotates and the rubber belt is transmitted, thereby reducing friction loss and increasing service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the air duct of the utility model;

[0020] Figure 3 yes Figure 3 A schematic diagram of the enlarged structure at point A;

[0021] Figure 4 It is a schematic diagram of the structure of the synchronization mechanism of the utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the sealing mechanism of the utility model;

[0023] Figure 6 yes Figure 5 A schematic diagram of the enlarged structure at B;

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the toggle mechanism of the utility model.

[0025] Reference numerals:

[0026] 1. Air duct; 2. Toggle mechanism; 3. Synchronous mechanism; 4. Moving plate; 5. Moving mechanism; 6. Driving mechanism; 7. Air outlet; 8. Shutter; 9. Second threaded rod; 10. First threaded rod; 11. First support block; 12. First bevel gear; 13. Fixed frame; 14. Second support block; 15. Second bevel gear; 16. Rotating column; 17. Hexagon socket; 18. Synchronous belt; 19. Synchronous wheel; 20. Sealing mechanism; 21. Reference plate; 22. Reset spring; 23. Double-section telescopic cylinder; 24. Fixed plate; 25. Extrusion wheel; 26. Rubber belt; 27. Rubber layer; 28. Rotating roller; 29. ​​Hand grip cylinder; 30. Bending handle; 31. Hexagonal head; 32. Transmission rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example: Reference Figure 1-7 The air duct structure of a central air conditioning system shown in the figure includes an air duct 1, into which the airflow of the external air conditioner is introduced, and a vent is provided at the bottom of the air duct 1, through which the air flows out, and further includes:

[0029] The movable plate 4 is provided with a movable mechanism 5 between the movable plate 4 and the air duct 1, and the movable plate 4 covers the vent. The movable plate 4 is linearly moved by the movable mechanism 5. An air outlet 7 is provided at the bottom of the movable plate 4. The airflow of the air conditioner is introduced into the air duct 1. The airflow flows to the air outlet 7 of the movable plate 4 through the vent. The movable plate 4 is linearly moved by the movable mechanism 5, thereby changing the flow direction of the airflow of the air conditioner.

[0030] A shutter 8 for airflow guidance, wherein the shutter 8 is entirely installed in the air outlet 7;

[0031] The sealing mechanism 20 is arranged in the vent, and the sealing mechanism 20 is in contact with the moving plate 4 to improve the sealing performance.

[0032] Specifically, the moving mechanism 5 includes a driving mechanism 6, a toggle mechanism 2, a first threaded rod 10 and a second threaded rod 9. A pair of first support blocks 11 and a pair of second support blocks 14 are fixed to the bottom of the air duct 1. A first rotating hole is opened on the outer side of the first support block 11. The outer side of the first threaded rod 10 is installed in the first rotating hole through a bearing. A second rotating hole is opened on the outer side of the second support block 14. The outer side of the second threaded rod 9 is installed in the second rotating hole through a bearing. The moving plate 4 is threadedly sleeved on the first threaded rod 10 and the second threaded rod 9. A synchronization mechanism 3 is arranged between the first threaded rod 10 and the second threaded rod 9 to make the two rotate synchronously. The toggle mechanism 2 is independently arranged. The toggle mechanism 2 makes the first threaded rod 10 rotate axially through the driving mechanism 6. The first threaded rod 10 and the second threaded rod 9 rotate synchronously through the synchronization mechanism 3. The first threaded rod 10 and the second thread make the moving plate 4 move linearly through threaded transmission.

[0033] Specifically, the synchronization mechanism 3 includes two synchronization wheels 19 and a synchronization belt 18 mounted on the two synchronization wheels 19. The two synchronization wheels 19 are coaxially fixed to the first threaded rod 10 and the second threaded rod 9 respectively. The two synchronization wheels 19 rotate synchronously through the synchronization belt 18, that is, the first threaded rod 10 and the second threaded rod 9 rotate synchronously.

[0034] Specifically, the driving mechanism 6 includes a first bevel gear 12, a second bevel gear 15, a rotating column 16 and a fixed frame 13. The fixed frame 13 is fixed to the air duct 1. A third rotating hole is opened on the outer side of the fixed frame 13. The outer side of the rotating column 16 is rotatably installed in the third rotating hole through a bearing. The first bevel gear 12 is coaxially fixed to the first threaded rod 10, and the second bevel gear 15 is coaxially fixed to the rotating column 16. The first bevel gear 12 and the second bevel gear 15 are meshed with each other. When the rotating column 16 rotates axially, the second bevel gear 15 on the rotating column 16 rotates the first threaded rod 10 by meshing with the first bevel gear 12.

[0035] Specifically, the toggle mechanism 2 includes a transmission rod 32, a hand grip tube 29, a hexagonal head 31 and a bending handle 30. The transmission rod 32 is rotatably installed in the hand grip tube 29 through a bearing. The two ends of the transmission rod 32 are respectively fixed to the hexagonal head 31 and the bending handle 30. One end of the rotating column 16 is provided with an inner hexagonal groove 17 that matches the hexagonal head 31. The operator holds the hand grip tube 29, inserts the hexagonal head 31 on the transmission rod 32 into the inner hexagonal groove 17, and rotates the bending handle 30. The bending handle 30 causes the transmission rod 32 to rotate, and the transmission rod 32 causes the rotating column 16 to rotate axially through the hexagonal head 31.

[0036] Specifically, the sealing mechanism 20 includes two reference plates 21 and two rotating rollers 28. The two reference plates 21 are respectively located on both sides of the vent. A plurality of reset mechanisms are arranged between the reference plate 21 and the induced draft duct 1. The reset mechanism includes a fixed plate 24, a double-section telescopic cylinder 23 and a reset spring 22. The fixed plate 24 is fixed to the reference plate 21. The two ends of the double-section telescopic cylinder 23 are respectively fixed to the induced draft duct 1 and the fixed plate 24. The reset spring 22 is sleeved on the double-section telescopic cylinder 23. The two ends of the rotating roller 28 are respectively rotatably mounted on the reference plate 21. The outer side of the rotating roller 28 is sleeved and fixed with a rubber layer. 27. Two rubber belts 26 are sleeved on the outer sides of the two rotating rollers 28. A plurality of extrusion wheels 25 are rotatably installed on the outer walls of the opposite sides of the two reference plates 21. The extrusion wheels 25 are in contact with the rubber belt 26, and the rotating rollers 28 are in contact with the movable plate 4. The rubber belt 26 improves the fit between the rotating rollers 28 and the movable plate 4, thereby improving the sealing. Each extrusion wheel 25 makes the rubber belt 26 fit better with the movable plate 4, further improving the sealing. At the same time, when the movable plate 4 moves, the rotating rollers 28 rotate, and the rubber belt 26 is transmitted, thereby reducing friction loss and increasing service life.

[0037] Specifically, guide plates are provided on both sides of the movable plate 4, the guide plates are fixed to the air duct 1, a slide groove is provided on the outer side of the guide plate, a pulley is slidably provided inside the slide groove, and the wheel axle of the pulley is rotatably installed on the movable plate 4. The guide plates and pulleys are provided to improve the movement stability of the movable plate 4.

[0038] The working principle of the utility model is as follows: the airflow of the air conditioner is introduced into the air duct 1, the airflow flows to the air outlet 7 of the movable plate 4 through the vent, the airflow passes through the louver 8, so that the airflow blows downward, the operator holds the hand grip 29, inserts the hexagonal head 31 on the transmission rod 32 into the inner hexagonal groove 17, rotates the bending handle 30, the bending handle 30 causes the transmission rod 32 to rotate, the transmission rod 32 causes the rotating column 16 to rotate axially through the hexagonal head 31, the second bevel gear 15 on the rotating column 16 causes the first threaded rod 10 to rotate through the meshing first bevel gear 12, and the first threaded rod 1 0 and the second threaded rod 9 rotate synchronously through the synchronization mechanism 3, and the first threaded rod 10 and the second thread make the movable plate 4 move linearly through the form of thread transmission, thereby changing the position of the air outlet 7; the rotating roller 28 contacts the movable plate 4, and the rubber belt 26 improves the fit between the rotating roller 28 and the movable plate 4, thereby improving the sealing performance, and each extrusion wheel 25 makes the rubber belt 26 fit better with the movable plate 4, further improving the sealing performance, and when the movable plate 4 moves, the rotating roller 28 rotates, and the rubber belt 26 is transmitted, thereby reducing friction loss and increasing service life.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An air duct structure of a central air conditioning system, comprising an air duct (1), characterized in that: The bottom of the air duct (1) is provided with a ventilating opening, and further comprises: A movable plate (4), a movable mechanism (5) is provided between the movable plate (4) and the air duct (1), and the movable plate (4) covers the air vent, the movable plate (4) is linearly moved by the movable mechanism (5), and an air outlet (7) is provided at the bottom of the movable plate (4); A shutter (8), wherein the shutter (8) is entirely installed in the air outlet (7); A sealing mechanism (20) is arranged in the vent.

2. The air duct structure of a central air conditioning system according to claim 1, characterized in that: The moving mechanism (5) comprises a driving mechanism (6), a toggle mechanism (2), a first threaded rod (10) and a second threaded rod (9); a pair of first support blocks (11) and a pair of second support blocks (14) are fixed to the bottom of the air duct (1); a first rotating hole is provided on the outer side of the first support block (11); the outer side of the first threaded rod (10) is mounted in the first rotating hole via a bearing; a second rotating hole is provided on the outer side of the second support block (14); the outer side of the second threaded rod (9) is mounted in the second rotating hole via a bearing; the moving plate (4) is sleeved on the first threaded rod (10) and the second threaded rod (9) via a thread; a synchronizing mechanism (3) is provided between the first threaded rod (10) and the second threaded rod (9) to enable the two to rotate synchronously; the toggle mechanism (2) is independently provided; the toggle mechanism (2) enables the first threaded rod (10) to rotate axially via the driving mechanism (6).

3. The air duct structure of a central air conditioning system according to claim 2, characterized in that: The synchronization mechanism (3) comprises two synchronization wheels (19) and a synchronization belt (18) sleeved on the two synchronization wheels (19); the two synchronization wheels (19) are coaxially fixed to the first threaded rod (10) and the second threaded rod (9), respectively.

4. The air duct structure of a central air conditioning system according to claim 3, characterized in that: The driving mechanism (6) comprises a first bevel gear (12), a second bevel gear (15), a rotating column (16) and a fixing frame (13); the fixing frame (13) is fixed to the air duct (1); a third rotating hole is provided on the outer side of the fixing frame (13); the outer side of the rotating column (16) is rotatably mounted in the third rotating hole via a bearing; the first bevel gear (12) is coaxially fixed to the first threaded rod (10); the second bevel gear (15) is coaxially fixed to the rotating column (16); and the first bevel gear (12) and the second bevel gear (15) are meshed.

5. The air duct structure of a central air conditioning system according to claim 4, characterized in that: The toggle mechanism (2) comprises a transmission rod (32), a hand grip tube (29), a hexagonal head (31) and a bending handle (30); the transmission rod (32) is rotatably mounted in the hand grip tube (29) via a bearing; two ends of the transmission rod (32) are respectively fixed to the hexagonal head (31) and the bending handle (30); one end of the rotating column (16) is provided with an inner hexagonal groove (17) adapted to the hexagonal head (31).

6. The air duct structure of a central air conditioning system according to claim 1, characterized in that: The sealing mechanism (20) comprises two reference plates (21) and two rotating rollers (28), the two reference plates (21) being respectively located at both sides of the ventilation opening, a plurality of reset mechanisms being arranged between the reference plates (21) and the air duct (1), the reset mechanisms comprising a fixed plate (24), a double-section telescopic cylinder (23) and a reset spring (22), the fixed plate (24) being fixed to the reference plate (21), the two ends of the double-section telescopic cylinder (23) being respectively connected to the air duct (1) and the fixed plate (24). 24) are fixed to each other, a return spring (22) is sleeved on a double-section telescopic cylinder (23), two ends of the rotating roller (28) are respectively rotatably mounted on the reference plate (21), a rubber layer (27) is sleeved and fixed on the outer side of the rotating roller (28), two rubber belts (26) are commonly sleeved on the outer sides of the two rotating rollers (28), and a plurality of extrusion wheels (25) are rotatably mounted on the outer walls of the two reference plates (21) on one side opposite to each other, and the extrusion wheels (25) are in contact with the rubber belts (26).

7. The air duct structure of a central air conditioning system according to claim 1, characterized in that: Guide plates are arranged on both sides of the movable plate (4), the guide plates are fixed to the air duct (1), a sliding groove is provided on the outer side of the guide plate, a pulley is slidably arranged inside the sliding groove, and the wheel axle of the pulley is rotatably mounted on the movable plate (4).

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