Helicopter air conditioner air inlet device

Abstract

The utility model discloses a helicopter air conditioner air inlet device which comprises an installation frame, a blocking cover is arranged on the installation frame, an installation box is arranged on the rear side of the installation frame, two sets of symmetrically-distributed air inlets are formed in the installation frame, the installation box is fixedly connected with the installation frame through the air inlets, and two sets of installation frames are arranged on the installation frame. The two sets of mounting frames are both slidably connected with the mounting frame, a filtering frame is embedded in the mounting frame, two sets of symmetrically-distributed lead screws are arranged in the mounting frame, two sets of symmetrically-distributed cleaning brushes are arranged in the mounting frame, and two sets of symmetrically-distributed threaded rods are arranged in the mounting frame. The first-layer filtering of air entering the air conditioner is realized through the mounting rack, the mounting frame and the filtering racks, and the intermittent cleaning of the two groups of filtering racks is realized through the arranged cleaning brush.

Description

Technical Field

[0001] The utility model relates to the technical field of helicopter air intake, in particular to a helicopter air conditioner air intake device. Background Technique

[0002] The air conditioning system of a helicopter generally includes a ventilation and heating system, which mixes air through the engine air intake and external air to provide air at an appropriate temperature for the main window. The air conditioning system adjusts the specific flow rate of the air flow through a flow control valve, and the temperature control valve adjusts the temperature. The system is divided into a "cold path" and a "hot path", and the two paths are mixed together before entering the cockpit. The air intake of the air conditioner is usually located at the bottom or side of the helicopter to ensure the smooth entry of fresh air. Currently, a filter screen is usually equipped at the air intake of the helicopter air intake device to filter the incoming air and prevent dust and impurities from entering the air conditioning system.

[0003] In the prior art, there are no good self-cleaning measures for the filter components such as the filter screen set in the helicopter air intake device, and it is necessary for the staff to regularly disassemble and clean it. During the use process, the gradual blockage of the pores of the filter screen causes the air intake rate to gradually decrease during the use of the helicopter air intake device, affecting the air quality inside the helicopter. And in some cases, when the filter screen is damaged by larger hard object impurities during the air intake process of the air intake device, there is no timely replacement backup measure in the air. Summary of the Invention

[0004] The purpose of the utility model is to provide a helicopter air conditioner air intake device to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a helicopter air conditioner air intake device, including a mounting frame, a shielding cover is arranged on the mounting frame, an installation box is arranged at the rear side of the mounting frame, two groups of symmetrically distributed air inlets are arranged on the mounting frame, the installation box is fixedly connected with the mounting frame through the air inlets, two groups of mounting frames are arranged on the mounting frame, both groups of mounting frames are slidably connected with the mounting frame, a filter frame is embedded in the mounting frame, two groups of symmetrically distributed lead screws are arranged in the mounting frame, two groups of symmetrically distributed cleaning brushes are arranged in the mounting frame, two groups of symmetrically distributed threaded rods are arranged in the mounting frame, two groups of symmetrically distributed winding rods are arranged in the installation box, a filter screen belt is arranged in the installation box, both ends of the filter screen belt are wound around the two groups of winding rods respectively, two groups of symmetrically distributed friction belts are arranged on both sides of the installation box, and the two groups of friction belts are respectively attached to the surface of the filter screen belt. Two groups of symmetrically distributed moving rods are slidably installed in the mounting frame.

[0006] As a further preference of this technical solution, both ends of the two lead screws respectively penetrate through the mounting frame and are rotatably connected to the mounting frame. The two lead screws respectively penetrate through the mounting frame and are threadedly connected to the mounting frame. Both cleaning brushes are slidably connected to the mounting frame. Both ends of the threaded rod respectively penetrate through the mounting frame and are rotatably connected to the mounting frame. The threaded rod penetrates through the cleaning brush and is threadedly connected to the cleaning brush.

[0007] As a further preference of this technical solution, there are two symmetrically distributed clamping frames inside the mounting frame. The two clamping frames are respectively located on both sides of the mounting frame and are movably clamped to the mounting frame. The two clamping frames are respectively slidably connected to the mounting frame. There are telescopic tubes between the two clamping frames and the air inlet. Both ends of the telescopic tube are fixedly connected to the clamping frame and the air inlet respectively. There is a bidirectional screw inside the mounting frame. Both ends of the bidirectional screw respectively penetrate through the mounting frame and are rotatably connected to the mounting frame. Both ends of the bidirectional screw respectively penetrate through the two clamping frames and are threadedly connected to the two clamping frames respectively.

[0008] As a further preference of this technical solution, both ends of the two winding rods respectively penetrate through the mounting box and are rotatably connected to the mounting box. There are driving wheels sleeved on the lower ends of the two winding rods. There is a transmission belt inside the mounting box. The transmission belt is respectively in transmission connection with the two driving wheels. There are two symmetrically distributed convex rods inside the mounting box. The filter belt is respectively slidably connected to the two convex rods. The two friction belts are respectively distributed corresponding to the two convex rods.

[0009] As a further preference of this technical solution, there are two belts fixedly installed on both sides of the two friction belts. There are rotating rods at both ends of the two friction belts. The rotating rods penetrate through the mounting box and are rotatably connected to the mounting box. There are two symmetrically distributed belt pulleys sleeved on the rotating rods. The belts are respectively in transmission connection with the two corresponding belt pulleys.

[0010] As a further preference of this technical solution, there are two symmetrically distributed scraping plates rotatably installed on both sides of the mounting box. The two scraping plates are respectively attached to the surface of the friction belt. There are second gears sleeved on both scraping plates. There is a second rack and a cylinder on the mounting box. The second rack is connected to the output end of the piston rod of the cylinder. The second rack is meshed with the second gear.

[0011] As a further preference of the present technical solution, the two groups of the moving rods are respectively movably clamped with the filter frames. Springs are sleeved on the two groups of the moving rods. Stoppers are fixedly sleeved on the two groups of the moving rods. Two ends of each spring are respectively fixedly connected with the stopper and the mounting frame. First racks are fixedly installed on the two groups of the moving rods. A mounting rod is rotatably installed in the mounting frame. A first gear is sleeved on the mounting rod. The first gear is respectively meshed and connected with the two first racks. A torsion spring is sleeved on the mounting rod. Two ends of the torsion spring are respectively fixedly connected with the mounting rod and the mounting frame.

[0012] The utility model provides a helicopter air-conditioning air intake device, which has the following beneficial effects:

[0013] (1) The utility model realizes the first layer of filtration of the air entering the air conditioner through the provided mounting frame, mounting frame and filter frame, and realizes the intermittent cleaning of the two filter frames through the provided cleaning brush. When the filter frame in the air intake port is damaged in the air, the conversion between the two mounting frames can realize emergency backup in an emergency, and the filter frame and the mounting frame are quickly clamped and fixed and disassembled through the two moving rods, which is convenient for subsequent workers to quickly replace the damaged filter frame and improve work efficiency.

[0014] (2) The utility model realizes the second layer of filtration of the air entering the air conditioner through the provided mounting box and the filter belt in the mounting box, and realizes the automatic cleaning of the filter belt through the provided friction belt and scraper, etc., reducing the problem that the air passing rate decreases due to the blockage of the air by dust and impurities in the filter belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the whole of the utility model;

[0016] Figure 2 is a schematic structural diagram of the mounting frame of the utility model;

[0017] Figure 3 is a schematic structural diagram of the filter frame of the utility model;

[0018] Figure 4 is of the utility model Figure 3 - enlarged structural view at A;

[0019] Figure 5 is a schematic structural diagram of the mounting box of the utility model;

[0020] Figure 6 is of the utility model Figure 5 - enlarged structural view at B;

[0021] In the figure: 1, mounting frame; 2, shield; 3, installation box; 4, air inlet; 5, mounting frame; 6, clamping frame; 7, telescopic pipe; 8, bidirectional screw; 9, lead screw; 10, filter frame; 11, cleaning brush; 12, threaded rod; 13, moving rod; 14, first rack; 15, spring; 16, stop block; 17, mounting rod; 18, first gear; 19, torsion spring; 20, winding rod; 21, transmission wheel; 22, transmission belt; 23, filter mesh belt; 24, convex rod; 25, rotating rod; 26, pulley; 27, belt; 28, friction belt; 29, scraper; 30, second gear; 31, second rack; 32, cylinder. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] The technical solution provided by the present invention is as follows: As Figure 1 , Figure 2 and Figure 3 shown, in this embodiment, a helicopter air conditioner air intake device includes a mounting frame 1, a shield 2 is provided on the mounting frame 1, an installation box 3 is provided at the rear of the mounting frame 1, two groups of symmetrically distributed air inlets 4 are provided on the mounting frame 1, and the installation box 3 is fixedly connected to the mounting frame 1 through the air inlets 4. Two groups of mounting frames 5 are provided on the mounting frame 1, and both groups of mounting frames 5 are slidably connected to the mounting frame 1. A filter frame 10 is embedded in the mounting frame 1. Two groups of symmetrically distributed lead screws 9 are provided in the mounting frame 1. Two groups of symmetrically distributed cleaning brushes 11 are provided in the mounting frame 1. Two groups of symmetrically distributed threaded rods 12 are provided in the mounting frame 1. Two groups of symmetrically distributed winding rods 20 are provided in the installation box 3. A filter mesh belt 23 is provided in the installation box 3. The two ends of the filter mesh belt 23 are respectively wound around the two winding rods 20. Two groups of symmetrically distributed friction belts 28 are provided on both sides of the installation box 3. The two groups of friction belts 28 are respectively attached to the surface of the filter mesh belt 23. Two groups of symmetrically distributed moving rods 13 are slidably installed in the mounting frame 5. Through the provided mounting frame 1, mounting frame 5 and filter frame 10, the first layer of filtration of the air entering the air conditioner is realized, and the intermittent cleaning of the two filter frames 10 is realized through the provided cleaning brush 11. When the filter frame 10 is damaged in the air at the air inlet 4, the conversion between the two mounting frames 5 can be realized for emergency backup in case of emergency, and the filter frame 10 and the mounting frame 5 are quickly clamped and fixed and disassembled through the two moving rods 13, which is convenient for the subsequent staff to quickly replace the damaged filter frame 10 and improve work efficiency.

[0024] As Figure 2 , Figure 3 and Figure 4As shown in the figure, both ends of the two sets of lead screws 9 penetrate through the mounting frame 1 and are rotatably connected to the mounting frame 1. The two sets of lead screws 9 respectively penetrate through the mounting frame 5 and are threadedly connected to the mounting frame 5. Both sets of cleaning brushes 11 are slidably connected to the mounting frame 1. Both ends of the threaded rod 12 penetrate through the mounting frame 1 and are rotatably connected to the mounting frame 1. The threaded rod 12 penetrates through the cleaning brush 11 and is threadedly connected to the cleaning brush 11. There are two sets of symmetrically distributed clamping frames 6 inside the mounting frame 1. The two sets of clamping frames 6 are respectively located on both sides of the mounting frame 5 and are movably clamped to the mounting frame 5. The two sets of clamping frames 6 are respectively slidably connected to the mounting frame 1. There is an expansion tube 7 between each of the two sets of clamping frames 6 and the air inlet 4. Both ends of the expansion tube 7 are fixedly connected to the clamping frame 6 and the air inlet 4 respectively. There is a bidirectional screw 8 inside the mounting frame 1. Both ends of the bidirectional screw 8 penetrate through the mounting frame 1 and are rotatably connected to the mounting frame 1. Both ends of the bidirectional screw 8 respectively penetrate through the two sets of clamping frames 6 and are threadedly connected to the two sets of clamping frames 6 respectively. The two sets of moving rods 13 are respectively movably clamped to the filter frame 10. Springs 15 are sleeved on both sets of moving rods 13. Blocks 16 are fixedly sleeved on both sets of moving rods 13. Both ends of the spring 15 are fixedly connected to the block 16 and the mounting frame 5 respectively. First racks 14 are fixedly installed on both sets of moving rods 13. A mounting rod 17 is rotatably installed inside the mounting frame 5. A first gear 18 is sleeved on the mounting rod 17. The first gear 18 is meshed with the two sets of first racks 14 respectively. A torsion spring 19 is sleeved on the mounting rod 17. Both ends of the torsion spring 19 are fixedly connected to the mounting rod 17 and the mounting frame 5 respectively. The air entering the mounting frame 1 through the air inlet 4 is first filtered through the filter frame 10 to reduce the dust and impurities contained in the air from entering the air-conditioning cycle. After the filter frame 10 at the air inlet 4 is used for a period of time, a large amount of dust adheres to its surface, resulting in a decrease in the air passing rate. Start the motor inside the mounting frame 1 to drive the rotation of the bidirectional screw 8. Under the limiting effect of the mounting frame 1, the two sets of clamping frames 6 move away from the mounting frame 5, and start the motor to drive the rotation of the lead screw 9. Under the limiting effect of the mounting frame 1, drive the two sets of mounting frames 5 and the filter frame 10 inside the mounting frame 5 to be replaced. Restart the motor to drive the rotation of the bidirectional screw 8, so that the two sets of clamping frames 6 are clamped and closed for the newly replaced mounting frame 5, and continue the work of air filtration. At the same time, the replaced mounting frame 5 and the filter frame 10 enter both sides of the mounting frame 1 corresponding to the cleaning brush 11. Start the motor inside the mounting frame 1 to drive the rotation of the threaded rod 12, so that the cleaning brush 11 slides inside the mounting frame 1 to realize the cleaning of the dust on the surface of the filter frame 10.

[0025] As Figure 5 and Figure 6As shown in the figure, both ends of the two groups of winding rods 20 penetrate through the installation box 3 and are rotatably connected to the installation box 3. Transmission wheels 21 are sleeved on the lower ends of the two groups of winding rods 20. A transmission belt 22 is arranged in the installation box 3, and the transmission belt 22 is respectively in transmission connection with the two groups of transmission wheels 21. Two groups of symmetrically distributed convex rods 24 are arranged in the installation box 3, and the filter belt 23 is respectively slidably connected to the two groups of convex rods 24. Two groups of friction belts 28 are respectively distributed corresponding to the two groups of convex rods 24. Two groups of belts 27 are fixedly installed on both sides of the two groups of friction belts 28. Rotating rods 25 are arranged at both ends of the two groups of friction belts 28. The rotating rods 25 penetrate through the installation box 3 and are rotatably connected to the installation box 3. Two groups of symmetrically distributed belt wheels 26 are sleeved on the rotating rods 25, and the belts 27 are respectively in transmission connection with the two groups of corresponding belt wheels 26. Two groups of symmetrically distributed scraping plates 29 are rotatably installed on both sides of the installation box 3. The two groups of scraping plates 29 are respectively in contact with the surfaces of the friction belts 28. Second gears 30 are sleeved on the two groups of scraping plates 29. A second rack 31 and a cylinder 32 are arranged on the installation box 3. The second rack 31 is connected to the output end of the piston rod of the cylinder 32, and the second rack 31 is meshed with the second gear 30. When the air that has been initially filtered by the filter rack 10 in the installation frame 1 enters the air conditioner through the installation box 3, it is filtered again by the filter belt 23, completing the secondary filtration of dust and impurities in the air, further reducing the possibility of dust and impurities entering the air conditioner cycle. At the same time, after the filter belt 23 has been used for a period of time, the two groups of winding rods 20 rotate under the action of the transmission belt 22 and the transmission wheels 21 to realize the conversion of the filter belt 23 on the air intake side of the installation box 3, and cooperate with the two groups of friction belts 28 on both sides to clean the dust on the surface of the filter belt 23, ensuring the ventilation rate of the filter belt 23. Moreover, the scraping plates 29 that are in contact with the friction belts 28 during the transmission of the friction belts 28 can remove the dust adhering to the friction belts 28.

[0026] The utility model provides a helicopter air-conditioning air intake device, and the specific working principle is as follows: The air entering the mounting frame 1 through the air inlet 4 is first filtered through the filter frame 10 to reduce the entry of dust and impurities in the air into the air-conditioning cycle. After the filter frame 10 at the air inlet 4 has been used for a period of time, a large amount of dust adheres to its surface, resulting in a decrease in the air passing rate. The motor in the mounting frame 1 is started to drive the rotation of the bidirectional screw 8. Under the limiting action of the mounting frame 1, the two sets of clamping frames 6 are separated from the mounting frame 5, and the motor is started to drive the rotation of the lead screw 9. Under the limiting action of the mounting frame 1, the two sets of mounting frames 5 and the filter frame 10 in the mounting frame 5 are rotated. The motor is restarted to drive the rotation of the bidirectional screw 8, so that the two sets of clamping frames 6 are clamped and closed on the newly replaced mounting frame 5, and the air filtration work continues. At the same time, the replaced mounting frame 5 and the filter frame 10 enter the two sides of the mounting frame 1 corresponding to the cleaning brush 11. The motor in the mounting frame 1 is started to drive the rotation of the threaded rod 12, so that the cleaning brush 11 slides in the mounting frame 1 to clean the dust on the surface of the filter frame 10. The air filtered by the filter frame 10 in the mounting frame 1 for the first time is filtered again by the filter belt 23 during the process of entering the air conditioner through the mounting box 3, completing the secondary filtration of the dust and impurities in the air, further reducing the possibility of dust and impurities entering the air-conditioning cycle. At the same time, after the filter belt 23 has been used for a period of time, the two sets of winding rods 20 rotate under the action of the transmission belt 22 and the transmission wheel 21 to realize the conversion of the filter belt 23 on the air intake side of the mounting box 3, and cooperate with the two sets of friction belts 28 on both sides to clean the dust on the surface of the filter belt 23, ensuring the ventilation rate of the filter belt 23, and the dust adhering to the friction belt 28 can be removed by the scraper 29 that fits with it during the transmission process of the friction belt 28.

[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A helicopter air-conditioning intake device, comprising a mounting bracket (1), characterized in that: A shield (2) is provided on the mounting bracket (1). An installation box (3) is provided at the rear side of the mounting bracket (1). Two groups of symmetrically distributed air inlets (4) are provided on the mounting bracket (1). The installation box (3) is fixedly connected to the mounting bracket (1) through the air inlets (4). Two groups of mounting frames (5) are provided on the mounting bracket (1). Both of the two groups of mounting frames (5) are slidably connected to the mounting bracket (1). A filter rack (10) is embedded in the mounting bracket (1). Two groups of symmetrically distributed lead screws (9) are provided in the mounting bracket (1). Two groups of symmetrically distributed cleaning brushes (11) are provided in the mounting bracket (1). Two groups of symmetrically distributed threaded rods (12) are provided in the mounting bracket (1). Two groups of symmetrically distributed winding rods (20) are provided in the installation box (3). A filter belt (23) is provided in the installation box (3). The two ends of the filter belt (23) are respectively wound around the two winding rods (20). Two groups of symmetrically distributed friction belts (28) are provided on both sides of the installation box (3). The two groups of friction belts (28) are respectively attached to the surface of the filter belt (23). Two groups of symmetrically distributed moving rods (13) are slidably installed in the mounting frame (5).

2. The helicopter air-conditioning intake device according to claim 1, wherein: The two ends of the two groups of lead screws (9) respectively penetrate through the mounting bracket (1) and are rotatably connected to the mounting bracket (1). The two groups of lead screws (9) respectively penetrate through the mounting frames (5) and are threadedly connected to the mounting frames (5). Both of the two groups of cleaning brushes (11) are slidably connected to the mounting bracket (1). The two ends of the threaded rod (12) respectively penetrate through the mounting bracket (1) and are rotatably connected to the mounting bracket (1). The threaded rod (12) penetrates through the cleaning brush (11) and is threadedly connected to the cleaning brush (11).

3. The helicopter air-conditioning air intake device according to claim 1, wherein: Two groups of symmetrically distributed clamping frames (6) are provided in the mounting bracket (1). The two groups of clamping frames (6) are respectively located on both sides of the mounting frame (5) and are movably clamped to the mounting frame (5). The two groups of clamping frames (6) are respectively slidably connected to the mounting bracket (1). An expansion tube (7) is provided between each of the two groups of clamping frames (6) and the air inlet (4). The two ends of the expansion tube (7) are respectively fixedly connected to the clamping frame (6) and the air inlet (4). A bidirectional screw rod (8) is provided in the mounting bracket (1). The two ends of the bidirectional screw rod (8) respectively penetrate through the mounting bracket (1) and are rotatably connected to the mounting bracket (1). The two ends of the bidirectional screw rod (8) respectively penetrate through the two groups of clamping frames (6) and are respectively threadedly connected to the two groups of clamping frames (6).

4. The air intake device of a helicopter air conditioner according to claim 1, characterized in that: The two ends of the two groups of winding rods (20) respectively penetrate through the installation box (3) and are rotatably connected to the installation box (3). Transmission wheels (21) are sleeved on the lower ends of the two groups of winding rods (20). A transmission belt (22) is provided in the installation box (3). The transmission belt (22) is respectively in transmission connection with the two groups of transmission wheels (21). Two groups of symmetrically distributed convex rods (24) are provided in the installation box (3). The filter belt (23) is respectively slidably connected to the two groups of convex rods (24). The two groups of friction belts (28) are respectively distributed corresponding to the two groups of convex rods (24).

5. The helicopter air-conditioning intake device according to claim 1, characterized in that: Two groups of belts (27) are fixedly installed on both sides of the two groups of friction belts (28). Two groups of rotating rods (25) are provided at both ends of the two groups of friction belts (28). The rotating rods (25) penetrate through the installation box (3) and are rotatably connected to the installation box (3). Two groups of symmetrically distributed belt pulleys (26) are sleeved on the rotating rods (25). The belts (27) are respectively in transmission connection with the two corresponding belt pulleys (26).

6. The helicopter air-conditioning intake device according to claim 1, characterized in that: Two groups of symmetrically distributed scraping plates (29) are rotatably installed on both sides of the installation box (3). The two groups of scraping plates (29) are respectively in contact with the surfaces of the friction belts (28). Two groups of second gears (30) are sleeved on the two groups of scraping plates (29). A second rack (31) and a cylinder (32) are provided on the installation box (3). The second rack (31) is connected to the output end of the piston rod of the cylinder (32). The second rack (31) is meshed with the second gear (30).

7. The air intake device of a helicopter air conditioner according to claim 1, characterized in that: The two groups of moving rods (13) are respectively movably clamped with the filter rack (10). Two groups of springs (15) are sleeved on the two groups of moving rods (13). Two groups of stoppers (16) are fixedly sleeved on the two groups of moving rods (13). The two ends of the spring (15) are respectively fixedly connected to the stopper (16) and the installation frame (5). Two groups of first racks (14) are fixedly installed on the two groups of moving rods (13). A mounting rod (17) is rotatably installed in the installation frame (5). A first gear (18) is sleeved on the mounting rod (17). The first gear (18) is respectively meshed with the two groups of first racks (14). A torsion spring (19) is sleeved on the mounting rod (17). The two ends of the torsion spring (19) are respectively fixedly connected to the mounting rod (17) and the installation frame (5).

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