Air conditioning fan capable of preventing water ingress

Abstract

The present invention discloses an air conditioning fan that prevents water ingress, relating to the field of air conditioning fans. The air conditioning fan comprises an air conditioning casing, a water collection tray provided at the bottom of the casing, air conditioning fans connected to both ends of the same side of the casing, a drive motor mounted on the side of the casing for driving the internal components of the air conditioning fan, and a main shaft connected to the output shaft of the drive motor. The air conditioning fan is rotatably provided with a main shaft. The present invention overcomes the shortcomings of the prior art by utilizing centrifugal force to instantly adjust the size of the opening at the air inlet end according to changes in air volume demand, and enhances the waterproof and dustproof effects of the fan interior, thereby having high social value and application prospects.

Description

Technical Field

[0001] The present invention relates to the technical field of air-conditioning fans, and in particular to an air-conditioning fan capable of preventing water ingress. Background Art

[0002] An air conditioning fan primarily consists of a motor, impeller, and fan housing. The motor drives the impeller, which generates centrifugal force during rotation, drawing air into the fan housing and ejecting it tangentially. This creates air flow and transport, enabling air conditioning, humidification, and ventilation. In air conditioning systems, the fan continuously circulates indoor air.

[0003] When using existing air-conditioning fans, the air inlet is in a long-term exposed state due to the problem of its air intake method and its installation position. During actual use, dust and water are easily caused to enter the interior of the fan casing. Driven by the internal blades, the fan will bring water and dust into the interior of the air conditioner, making the internal components of the air conditioner vulnerable to damage and shortening the service life of its internal parts. Summary of the Invention

[0004] In order to achieve the purpose of making the fan dustproof and waterproof without affecting the normal air intake and air outlet of the air conditioner fan, the present invention adopts the following technical solutions:

[0005] An air conditioning fan for preventing water ingress comprises an air conditioning casing, a water collecting pan being provided at the bottom of the air conditioning casing, air conditioning fans being connected to both ends of the same side of the air conditioning casing, a drive motor being mounted on the side of the air conditioning casing for driving internal components of the air conditioning fan to rotate, and a main shaft being provided on the air conditioning fan for rotating and connected to an output shaft of the drive motor;

[0006] The air-conditioning fan includes a fan casing installed on the side of the air-conditioning casing, and air inlet side casings are provided at both ends of the fan casing. The main shaft is rotatably arranged inside the fan casing, and a fixed disk is provided on the main shaft, and blades are provided on the fixed disk. An air outlet is provided on the front of the fan casing, and a baffle is provided on the outer surface of the air inlet side casing. A positive air inlet is provided on the front of the baffle, and an upper side air inlet and a lower side air inlet are respectively provided on the upper and lower parts of the outer ring surface of the baffle, and a dust net is provided on the lower side air inlet.

[0007] Preferably, a track ring is provided on the inner side surface of the air inlet side shell, a turntable linked to the blades is rotatably provided on the track ring, a sliding hole is provided on the turntable, and a centrifugal linkage mechanism is slidably sleeved in the sliding hole.

[0008] Preferably, the centrifugal linkage mechanism includes an arc-shaped groove plate, a sliding seat that slides with the sliding hole is provided on the side of the arc-shaped groove plate, a sleeve rod is provided on the arc-shaped groove plate, and the inner side surface of the turntable is provided with a through rod that movably fits with the sleeve rod, and the end of the through rod is connected to a spring B, and the other end of the spring B is fixedly connected to the inner end face of the sleeve rod.

[0009] Preferably, a dust-proof frame is provided at the bottom outer side of the baffle frame, a guide bar hole is opened on the anti-dust frame, a positive sealing plate is provided on the inner side of the baffle frame to provide a closure for the positive air inlet, an upper portion of the inner ring surface of the baffle frame is provided to provide a closure for the upper side air inlet, and telescopic rods are provided on both sides of the positive sealing plate located at one end of the lower side air inlet, and the ends of the telescopic rods are connected to the lower sealing plate to provide a closure for the lower side air inlet.

[0010] Preferably, a linkage rod is provided in the middle of one end of the positive sealing plate, and the end of the linkage rod is connected to a balancing frame that is slidably fitted with the arc-shaped groove plate.

[0011] Preferably, a through hole is provided on the upper sealing plate, and both sides of the positive sealing plate located at one end of the upper side air inlet are provided with a push rod inserted into the through hole, a lock plate A is provided on the upper sealing plate, and an upper sealing plate that is locked and matched with the lock plate A is provided on the front of the baffle frame, and a lock plate B is provided on the upper sealing plate that is locked with the lock plate A by bolts.

[0012] Preferably, a pad is provided on the outer surface of the upper sealing plate, and a spring A connected to the outer ring surface of the baffle frame is provided on the pad.

[0013] Preferably, an adjustment mechanism is rotatably provided at the top end of the outer surface of the air inlet side shell, and a dust cleaning mechanism is rotatably provided at the outer surface of the air inlet side shell. The adjustment mechanism includes a disc frame rotatably connected to the air inlet side shell, and a linkage pin rod is provided on the front side of the disc frame for linkage matching with the top frame, and a rotating shaft is connected to the axial center position on the other side of the disc frame.

[0014] Preferably, the dust cleaning mechanism includes a main rod rotatably connected to the air inlet side shell, and the bottom end of the main rod is provided with a secondary rod that slidably matches the guide bar hole.

[0015] Preferably, the bottom end of the auxiliary rod is provided with a screen cleaning brush acting on the outer surface of the dustproof screen, and the top of the main rod is provided with a top frame that is linked and matched with the adjustment mechanism.

[0016] Preferably, a reduction gearbox is provided on the top of the fan housing, an input shaft and an output shaft are provided at both ends of the reduction gearbox, a driven impeller is connected to the end of the input shaft, and a synchronization hole is provided on the bottom surface of the output shaft.

[0017] Preferably, an extension plate is provided on the inner side surface of the air inlet side shell, and a transmission mechanism is rotatably provided on the extension plate. The transmission mechanism includes a positioning plate connected to the linkage rod, and a positioning sleeve rotatably connected to the extension plate. The bottom of the positioning sleeve is connected to a driving bevel gear, and the end of the rotating shaft is provided with a driven bevel gear that meshes with the driving bevel gear.

[0018] Preferably, a transmission shaft is rotatably provided on the positioning plate, and the top end of the transmission shaft is slidably mounted on the positioning sleeve in the up and down directions. A gasket is provided on the transmission shaft, and a spring C is provided on the gasket. The top end of the spring C is connected to the bottom surface of the active bevel gear.

[0019] Preferably, a synchronization end is provided at the top of the positioning sleeve, and the synchronization end is matched with the synchronization hole linkage set.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. By setting the baffle and opening and closing the front, upper and lower sealing plates, external water can be prevented from entering the fan casing when the air-conditioning fan is not in use, and water can be prevented from entering the interior of the air-conditioning casing after the subsequent blades rotate, causing damage to the internal parts of the air-conditioning casing.

[0022] 2. Through the separate opening and closing control of the positive sealing plate, the upper sealing plate and the lower sealing plate, in the initial stage, air can be taken in from the lower side air inlet, in the normal operation stage, air can be taken in from the positive air inlet, and in the high speed stage of the blades, the upper side air inlet can be opened to provide air intake, so that the fan can control the area of ​​the opening degree of the air supply port according to actual usage needs.

[0023] 3. Through the setting of the turntable, when the blades are driven by the main shaft to rotate normally, the turntable can rotate synchronously at the same speed, so that the arc-shaped slot plate is subjected to the centrifugal effect of the rotation of the turntable, so that the positive sealing plate is opened under the cooperation of the linkage rod and the balance frame. The opening range of the positive sealing plate relative to the positive air inlet is proportional to the rotation rate of the turntable, which is used to control the opening range of the positive sealing plate through the rotation speed. When the blades rotate at high speed, the push rod can be inserted into the perforation to adjust the position of the upper sealing plate relative to the upper side air inlet, so that the upper side air inlet is in an open state.

[0024] 4. Through the setting of the adjustment mechanism and the cleaning mechanism, the rotation control of the adjustment mechanism is used to allow the main rod to control the auxiliary rod to swing back and forth left and right, so that the cleaning brush can act on the outer surface of the dustproof net. This is used to solve the problem that the dustproof net is close to the horizontal height of the equipment installation plane, which easily raises dust during the air intake stage, and the dust easily adheres to the surface of the dustproof net, causing dust accumulation and clogging of the air inlet holes on the surface of the dustproof net.

[0025] 5. Through the setting of the reduction gearbox, the wind force generated by the high-speed rotation of the blades is used to rotate the driven impeller. The deceleration effect of the gear set inside the reduction gearbox and the pushing effect of the positive sealing plate are utilized to enable the transmission mechanism to link the rotation of the output shaft and the adjustment mechanism, so that the cleaning brush acts on the outer surface of the dustproof net without providing it with an additional power source, saving unnecessary production capital investment.

[0026] In summary, the present invention overcomes the shortcomings of the existing technology. Through the use of centrifugal force, the opening size of the air inlet end can be adjusted instantly according to changes in air volume demand, and the waterproof and dustproof effects inside the fan are enhanced. It has high social use value and application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is an exploded schematic diagram of the air-conditioning fan structure in the present invention;

[0029] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 3 Based Figure 1 A magnified view of the local structure at point A;

[0031] Figure 4 This is a schematic side structural diagram of the air-conditioning fan in the present invention;

[0032] Figure 5 Based Figure 4 A magnified view of the local structure at point B in the middle;

[0033] Figure 6 Schematic diagram of the structure of the air-conditioning fan in the present invention;

[0034] Figure 7 Schematic diagram of the internal structure of the air inlet side shell in the present invention;

[0035] Figure 8 Schematic diagram of the structural position of the transmission mechanism and the adjustment mechanism in the present invention;

[0036] Figure 9 It is a structural schematic diagram of the reduction gearbox in the present invention;

[0037] Figure 10 Schematic diagram of the internal structure of the turntable in the present invention;

[0038] Figure 11 Schematic diagram of the structural position of the main sealing plate and the upper sealing plate in the present invention;

[0039] Figure 12 Schematic diagram of the cross-section of the centrifugal linkage mechanism of the present invention;

[0040] Figure 13 It is a schematic diagram of the partial structure of the turntable in the present invention;

[0041] Figure 14 It is a schematic diagram of the partial structure of the turntable in the present invention;

[0042] Figure 15 Based Figure 14 A magnified view of the local structure at point C in the middle.

[0043] In the figure: 100, air conditioner housing; 200, water collection tray; 300, air conditioner fan; 400, drive motor; 1, fan housing; 101, air outlet; 102, fixing plate; 1021, blade; 1022, main shaft; 2, air inlet side housing; 21, track ring; 22, extension plate; 3, baffle frame; 301, front air inlet; 3011, lock plate A; 302, upper side air inlet; 303, lower side air inlet; 31, dust prevention frame; 311, guide bar hole; 32, front sealing plate; 3201, top rod; 321, linkage rod; 3211, balance frame; 322, telescopic rod; 33, upper sealing plate; 3301, pad; 3302, spring A; 331, perforation; 332, lock plate B; 34, lower sealing plate; 4, turntable; 41 , sliding hole; 42, centrifugal linkage mechanism; 4201, arc groove plate; 4202, slide seat; 4203, sleeve rod; 4204, through rod; 4205, spring B; 5, reduction gearbox; 501, input shaft; 5011, driven impeller; 502, output shaft; 5021, synchronization hole; 6, transmission mechanism; 601, positioning sleeve; 602, driving bevel gear; 603, transmission shaft; 6031, synchronization end; 604, gasket; 6041, spring C; 605, positioning plate; 7, adjustment mechanism; 701, disc frame; 702, rotating shaft; 703, driven bevel gear; 704, linkage pin rod; 8, cleaning mechanism; 801, main rod; 802, auxiliary rod; 803, screen cleaning brush; 804, top frame; 9, dust net. DETAILED DESCRIPTION

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0045] Example 1: Reference Figure 1-15 An air conditioning fan that prevents water ingress includes an air conditioning casing 100, a water collecting tray 200 is provided at the bottom of the air conditioning casing 100, air conditioning fans 300 are connected to both ends of the same side of the air conditioning casing 100, a drive motor 400 for driving the internal components of the air conditioning fan 300 to rotate is installed on the side of the air conditioning casing 100, and a main shaft 1022 connected to the output shaft of the drive motor 400 is provided on the air conditioning fan 300;

[0046] The air conditioner fan 300 includes a fan housing 1 installed on the side of the air conditioner housing 100, an air inlet side housing 2 is provided at both ends of the fan housing 1, a main shaft 1022 is rotatably arranged inside the fan housing 1, a fixed disk 102 is provided on the main shaft 1022, and a blade 1021 is provided on the fixed disk 102. An air outlet 101 is provided on the front of the fan housing 1, and a baffle 3 is provided on the outer surface of the air inlet side housing 2. A positive air inlet 301 is provided on the front of the baffle 3, and an upper side air inlet 302 and a lower side air inlet 303 are respectively provided on the upper and lower parts of the outer ring surface of the baffle 3. A dustproof net 9 is provided on the air inlet 303, and an air inlet is opened on the side of the air inlet side shell 2. When the main shaft 1022 drives the blade 1021 to rotate, air can enter through the air inlet, and then the air is transported to the interior of the air-conditioning casing 100 through the air outlet 101. The purpose of setting the dustproof net 9 is that the side lower air inlet 303 is close to the plane height position of the overall installation of the equipment, so that when the air flows, it is easy to generate dust from the side lower air inlet 303 and enter the air-conditioning fan 300. Therefore, a dustproof net 9 is provided to provide it with a blocking effect on the dust generated at the bottom.

[0047] Specifically, refer to Figure 1 、 Figure 7 and Figure 10 An orbital ring 21 is provided on the inner side of the air inlet side shell 2, and a turntable 4 linked to the blades 1021 is rotatably provided on the orbital ring 21. A sliding hole 41 is provided on the turntable 4, and a centrifugal linkage mechanism 42 is slidably sleeved in the sliding hole 41. The setting of the orbital ring 21 can allow the turntable 4 to rotate relative to the air inlet side shell 2. The rotation of the turntable 4 can be driven by the rotation of the blades 1021, so as to control the centrifugal opening degree of the centrifugal linkage mechanism 42 based on the rotation rate of the turntable 4. The opening degree of the centrifugal linkage mechanism 42 is proportional to the rotation rate of the turntable 4. The faster the turntable 4 rotates, the greater the opening degree of the centrifugal linkage mechanism 42.

[0048] Specifically, refer to Figure 1 、 Figure 7 、 Figure 10 、 Figure 12 and Figure 13 The centrifugal linkage mechanism 42 includes an arc-shaped groove plate 4201, and a sliding seat 4202 is provided on the side of the arc-shaped groove plate 4201, which is slidably fitted with the sliding hole 41. A sleeve rod 4203 is provided on the arc-shaped groove plate 4201, and a penetrating rod 4204 is provided on the inner side of the turntable 4, which is movably fitted with the sleeve rod 4203. The end of the penetrating rod 4204 is connected to a spring B4205, and the other end of the spring B4205 is fixedly connected to the inner end surface of the sleeve rod 4203. When the turntable 4 rotates, the arc-shaped groove plate 4201 will use the centrifugal force of the rotation of the turntable 4 to move toward the outside of the turntable 4, causing the spring B4205 to produce elastic deformation, and the sliding seat 4202 will move inside the sliding hole 41, and the sliding hole 41 provides it with guidance and stability for position movement.

[0049] Specifically, refer to Figure 1 、 Figure 3 、 Figure 5 、 Figure 10 and Figure 11 The outer bottom of the baffle frame 3 is provided with a dust-proof frame 31, and a guide bar hole 311 is opened on the dust-proof frame 31. The inner side of the baffle frame 3 is provided with a positive sealing plate 32 for providing a closure for the positive air inlet 301, and the upper part of the inner ring surface of the baffle frame 3 is provided with an upper sealing plate 33 for providing a closure for the upper side air inlet 302. The positive sealing plate 32 is located on both sides of one end of the lower side air inlet 303 and is provided with a telescopic rod 322. The end of the telescopic rod 322 is connected to a lower sealing plate 34 for providing a closure for the lower side air inlet 303. The setting of the dust-proof frame 31 can block dust when cleaning the surface of the dustproof net 9 or when the equipment is initially turned on. To prevent dust from being raised over a large range, the opening and closing of the upper and lower side air inlets 302 and 303 by the upper and lower sealing plates 33 and 34 are controlled by the linkage of the positive sealing plate 32. When the positive sealing plate 32 is at the maximum opening value, the upper side air inlet 302 is in an open state. When the positive sealing plate 32 opens the positive air inlet 301, the lower sealing plate 34 will be gradually pushed to cover the upper side air inlet 303. The subsequent continuous opening of the positive sealing plate 32 will compress the elasticity inside the telescopic rod 322, making the lower side air inlet 303 more tightly closed by the lower sealing plate 34.

[0050] Specifically, refer to Figure 12-15The yoke 3211 is provided with a lever 322 at one end of the positive sealing plate 32, and the end of the lever 322 is connected to a balancing rack 3211 which is slidably fitted with the arc slot plate 4201. As the arc slot plate 4201 rotates, the centrifugal force of the arc slot plate 4201 allows the turntable 4 and the balancing rack 3211 to rotate relative to each other, so that the balancing rack 3211 can move inside the arc slot plate 4201. In fact, the balancing rack 3211 is not in a moving state relative to the air inlet side shell 2, and the centrifugal movement of the arc slot plate 4201 outward will drive the positive sealing plate 32 to move through the balancing rack 3211 and the linking rod 321, so as to open the positive air inlet 301. As the rotation speed of the turntable 4 increases, the movement and opening range of the positive sealing plate 32 for the positive air inlet 301 will also increase. The setting of the balancing rack 3211 is to enable the movement of the balancing rack 3211 between the continuous turntables 4 to not be affected by the gap between the two when a gap is generated between the two turntables 4 due to movement.

[0051] Specifically, refer to Figure 11 The lock plate 33 is provided with a lock plate B332 which is locked with the lock plate A3011 by a bolt. As the positive sealing plate 32 moves under the action of centrifugal force, the push rod 3201 will be inserted into the through hole 331. As the push rod 3201 is gradually inserted, the upper sealing plate 33 is moved relative to the side upper air inlet 302 to open the upper sealing plate 33 to close the side upper air inlet 302, thereby increasing the air inlet channel on the upper part of the outer ring surface of the baffle frame 3, and the air intake volume is increased synchronously with the rotation speed of the blade 1021.

[0052] Specifically, refer to Figure 5 A pad 3301 is provided on the outer surface of the upper sealing plate 33, and a spring A3302 connected to the outer ring surface of the baffle frame 3 is provided on the pad 3301. When the upper sealing plate 33 moves relative to the upper side air inlet 302, the spring A3302 will produce elastic deformation. After the top rod 3201 withdraws from the inside of the through hole 331, the elastic deformation recovery of the spring A3302 will allow the upper sealing plate 33 to re-close the upper side air inlet 302.

[0053] Example 2: Reference Figure 1-15The difference between this embodiment and embodiment 1 is that an adjustment mechanism 7 is rotatably provided at the top end of the outer surface of the air inlet side shell 2, and a dust cleaning mechanism 8 is rotatably provided at the outer surface of the air inlet side shell 2. The adjustment mechanism 7 includes a disc frame 701 rotatably connected to the air inlet side shell 2, and a linkage pin 704 is provided on the front of the disc frame 701, which is linked and matched with the top frame 804. A rotating shaft 702 is connected to the axial position of the other side of the disc frame 701. The rotation of the rotating shaft 702 can be provided with an additional power source to rotate the rotating shaft 702, thereby driving the disc frame 701 to rotate, so that the dust cleaning mechanism 8 can swing in position under the drive of the disc frame 701 and the linkage pin 704.

[0054] Specifically, refer to Figure 1 、 Figure 3 and Figure 7 The dust cleaning mechanism 8 includes a main rod 801 rotatably connected to the air inlet side shell 2, and a sub-rod 802 is provided at the bottom end of the main rod 801. The main rod 801 provided on the air inlet side shell 2 on one side of the fan casing 1 is provided with a hole for the main shaft 1022 to pass through, and the rotation of the main shaft 1022 will not affect the main rod 801.

[0055] Specifically, refer to Figure 1 and Figure 3 The bottom end of the auxiliary rod 802 is provided with a cleaning brush 803 acting on the outer surface of the dustproof net 9, and the top of the main rod 801 is provided with a top frame 804 that is linked and matched with the adjustment mechanism 7. With the reciprocating swing of the main rod 801, the cleaning brush 803 can clean the dust attached to the surface of the dustproof net 9 provided on the outside of the lower air inlet 303, so that dust will not accumulate in large quantities and cause clogging of the holes in the dustproof net 9.

[0056] For other structures not described, refer to Example 1.

[0057] Example 3: Reference Figure 1-15 The difference between this embodiment and embodiment 2 is that a reduction gearbox 5 is provided on the top of the fan housing 1, and an input shaft 501 and an output shaft 502 are provided at both ends of the reduction gearbox 5. The end of the input shaft 501 is connected to a driven impeller 5011, and a synchronization hole 5021 is opened on the bottom surface of the output shaft 502. A gear set is provided inside the reduction gearbox 5 to control the speed difference between the input shaft 501 and the output shaft 502.

[0058] Specifically, refer to Figure 1 、 Figure 7-9An extension plate 22 is provided on the inner side of the air inlet side shell 2, and a transmission mechanism 6 is rotatably provided on the extension plate 22. The transmission mechanism 6 includes a positioning plate 605 connected to the linkage rod 321, and a positioning sleeve 601 rotatably connected to the extension plate 22. The bottom of the positioning sleeve 601 is connected to a driving bevel gear 602, and the end of the rotating shaft 702 is provided with a driven bevel gear 703 that meshes with the driving bevel gear 602. The rotation of the driving bevel gear 602 will drive the driven bevel gear 703 to rotate, thereby allowing the disc frame 701 to rotate around the axis of the rotating shaft 702.

[0059] Specifically, refer to Figure 8 , a transmission shaft 603 is rotatably provided on the positioning plate 605, and the top of the transmission shaft 603 is slidably fitted with the positioning sleeve 601 in the up and down directions, a gasket 604 is provided on the transmission shaft 603, and a spring C6041 is provided on the gasket 604. The top of the spring C6041 is connected to the bottom surface of the active bevel gear 602. The movable suit mode between the transmission shaft 603 and the positioning sleeve 601 allows the transmission shaft 603 to drive the positioning sleeve 601 to move and rotate, and the transmission shaft 603 can be adjusted in height up and down inside the positioning sleeve 601. As the positive sealing plate 32 moves, the positioning plate 605 can be lifted The relative height between the transmission shaft 603 and the positioning sleeve 601 allows the synchronization end 6031 to be inserted into the synchronization hole 5021, so that the synchronization hole 5021 drives the transmission shaft 603 to rotate. The linkage between the positioning sleeve 601 and the transmission shaft 603 is utilized to make the positioning sleeve 601 drive the active bevel gear 602 to rotate. When the gasket 604 is in the elastic deformation and compression state, the synchronization end 6031 is inserted into the synchronization hole 5021, so that the two rotate synchronously. When the gasket 604 recovers from the elastic deformation, the synchronization end 6031 is separated from the synchronization hole 5021, and the two no longer rotate synchronously.

[0060] Specifically, refer to Figure 8 A synchronization end 6031 is provided on the top of the positioning sleeve 601, and the synchronization end 6031 is matched with the synchronization hole 5021 in a linkage suit.

[0061] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by a person skilled in the art. The provision of power is also common knowledge in the art. The present invention is mainly used to protect mechanical devices, so the control method and circuit connection are not explained in detail in the present invention.

[0062] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An air-conditioning fan for preventing water ingress, comprising an air-conditioning casing (100), characterized in that: The air-conditioning housing (100) is provided with a water collecting tray (200) at the bottom, and the air-conditioning housing (100) is connected to the air-conditioning fan (300) at both ends of the same side. The air-conditioning housing (100) is provided with a driving motor (400) for driving the internal components of the air-conditioning fan (300) to rotate. The air-conditioning fan (300) is provided with a main shaft (1022) connected to the output shaft of the driving motor (400) on the rotating shaft. The air-conditioning fan (300) includes a fan housing (1) installed on the side of the air-conditioning housing (100), and both ends of the fan housing (1) are provided with an air inlet side housing (2 ), the main shaft (1022) is rotatably arranged inside the fan housing (1), a fixed disk (102) is provided on the main shaft (1022), and a blade (1021) is provided on the fixed disk (102), an air outlet (101) is provided on the front of the fan housing (1), a baffle (3) is provided on the outer surface of the air inlet side shell (2), a positive air inlet (301) is provided on the front of the baffle (3), an upper side air inlet (302) and a lower side air inlet (303) are provided on the upper and lower parts of the outer ring surface of the baffle (3), respectively, and a dustproof net (9) is provided on the lower side air inlet (303); The inner side surface of the air inlet side shell (2) is provided with a track ring (21), a turntable (4) rotatably provided on the track ring (21) and linked to the blades (1021), a sliding hole (41) is provided on the turntable (4), and a centrifugal linkage mechanism (42) is slidably sleeved in the sliding hole (41); The centrifugal linkage mechanism (42) includes an arc-shaped slot plate (4201), a sliding seat (4202) slidably fitted with the sliding hole (41) is provided on the side of the arc-shaped slot plate (4201), a sleeve rod (4203) is provided on the arc-shaped slot plate (4201), and a through rod (4204) movably fitted with the sleeve rod (4203) is provided on the inner side surface of the turntable (4), and a spring B (4205) is connected to the end of the through rod (4204), and the other end of the spring B (4205) is fixedly connected to the inner end surface of the sleeve rod (4203); The outer bottom of the baffle frame (3) is provided with a dust-proof frame (31), and the dust-proof frame (31) is provided with a guide bar hole (311). The inner side of the baffle frame (3) is provided with a positive sealing plate (32) for providing a closure for the positive air inlet (301). The upper part of the inner ring surface of the baffle frame (3) is provided with an upper sealing plate (33) for providing a closure for the upper side air inlet (302). Both sides of the positive sealing plate (32) located at one end of the lower side air inlet (303) are provided with telescopic rods (322), and the ends of the telescopic rods (322) are connected to the lower sealing plate (34) for providing a closure for the lower side air inlet (303). A linkage rod (321) is provided in the middle of one end of the positive sealing plate (32), and the end of the linkage rod (321) is connected to a balancing frame (3211) that is slidably mounted on the arc-shaped groove plate (4201).

2. The air-conditioning fan for preventing water ingress according to claim 1, characterized in that: The upper sealing plate (33) is provided with a through hole (331), and the front sealing plate (32) is provided with a push rod (3201) inserted into the through hole (331) on both sides of one end of the upper side air inlet (302). The baffle frame (3) is provided with a lock plate A (3011), and the front of the baffle frame (3) is provided with an upper sealing plate (33) that is locked and matched with the lock plate A (3011), and the upper sealing plate (33) is provided with a lock plate B (332) that is locked with the lock plate A (3011) by bolts.

3. The air-conditioning fan for preventing water ingress according to claim 2, characterized in that: A backing plate (3301) is provided on the outer surface of the upper sealing plate (33), and a spring A (3302) connected to the outer ring surface of the retaining frame (3) is provided on the backing plate (3301).

4. The air-conditioning fan for preventing water ingress according to claim 1, characterized in that: An adjusting mechanism (7) is rotatably provided at the top end of the outer surface of the air inlet side shell (2), and a dust cleaning mechanism (8) is rotatably provided at the outer surface of the air inlet side shell (2). The adjusting mechanism (7) comprises a disc frame (701) rotatably connected to the air inlet side shell (2), a linkage pin (704) that is rotatably matched with the top frame (804) is provided on the front of the disc frame (701), and a rotating shaft (702) is connected to the axis center position of the other side of the disc frame (701).

5. The air-conditioning fan for preventing water ingress according to claim 4, characterized in that: The dust cleaning mechanism (8) comprises a main rod (801) rotatably connected to the air inlet side housing (2), and a secondary rod (802) slidably matched with the guide bar hole (311) is provided at the bottom end of the main rod (801).

6. The air-conditioning fan for preventing water ingress according to claim 5, characterized in that: The bottom end of the auxiliary rod (802) is provided with a screen cleaning brush (803) that acts on the outer surface of the dustproof screen (9), and the top of the main rod (801) is provided with a top frame (804) that is linked and matched with the adjustment mechanism (7).

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