Self-cleaning device of heating ventilation air conditioner

Abstract

The utility model discloses a self-cleaning device of a heating ventilation air conditioner, and relates to the technical field of heating ventilation air conditioner cleaning devices. The device comprises a mounting plate, the top end of the mounting plate is fixedly connected with an air inlet frame, the interior of the air inlet frame is fixedly connected with a transverse plate, one side of the transverse plate is fixedly provided with a servo motor, and the driving end of the servo motor is fixedly connected with fan blades; a piston rod of an electric air cylinder extends to push a connecting block to synchronously move, meanwhile, a rotating rod and cleaning brushes are driven to rotate, the rotating rod is located on the diameter of an air inlet frame, at the moment, blades of fan blades are located between the two cleaning brushes and located at the connecting position of the cleaning brushes, and then the fan blades are driven by a servo motor to rotate; the cleaning brush is arranged on the fan blade, relative displacement is generated between the blade bodies of the fan blade and the cleaning brush, the cleaning brush is used for sweeping the blade bodies of the fan blade, dust on the blade bodies of the fan blade is removed, the problems that dust is accumulated on the fan blade and the fan load is increased are avoided, and the service life of equipment is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of heating, ventilation and air conditioning cleaning devices, in particular to a self-cleaning device for heating, ventilation and air conditioning. Background Art

[0002] HVAC refers to the combined term for heating and air conditioning systems, and usually includes heating and ventilation and air conditioning systems. In winter, HVAC systems provide heating services; in summer, they provide ventilation and air conditioning services to maintain indoor comfort and air quality.

[0003] After searching, a Chinese patent discloses a HVAC self-cleaning device (authorization announcement number CN217031550U), which belongs to the technical field of HVAC cleaning devices, including "a fixed plate, a brush rod and a buffer mechanism, the edge of the fixed plate is evenly penetrated by a limiting sleeve, and the left edge of the fixed plate is evenly installed with a power socket, the output end of the power socket is connected to an electric telescopic rod, the inside of the fixed plate near the center is penetrated by a ventilation hole, the center of the fixed plate is horizontally penetrated by a rotating shaft, and the shaft end of the rotating shaft is welded with a fixed block, and the brush rod is fixed to the outer wall of the fixed block". Although this patented technology can provide good dust cleaning treatment for the ventilation windows of HVAC.

[0004] However, during the actual application of this patented technology, dust will accumulate on the fan blades, thereby increasing the load of the fan, causing the fan to run poorly or unevenly, thereby reducing the cooling or ventilation effect of the air-conditioning system. In response to the above problems, the inventors proposed a self-cleaning device for HVAC to solve the above problems. Utility Model Content

[0005] In order to solve the problem of automatic cleaning of HVAC fan blades, the purpose of the utility model is to provide a self-cleaning device for HVAC.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: a self-cleaning device for HVAC, comprising a mounting plate, the top of the mounting plate is fixedly connected to an air intake frame, the interior of the air intake frame is fixedly connected to a horizontal plate, a servo motor is fixedly mounted on one side of the horizontal plate, a driving end of the servo motor is fixedly connected to a fan blade, one side of the inner wall of the air intake frame is rotatably connected to an electric cylinder, the interior of the air intake frame is rotatably connected to two rotating rods on one side close to the electric cylinder, a cleaning brush is fixedly connected to the sides of the two rotating rods close to each other, the blades of the fan blade are placed between the two cleaning brushes and in contact with the cleaning brushes, a connecting block is fixedly connected between the two rotating rods, and the piston rod of the electric cylinder is rotatably connected to the connecting block.

[0007] Preferably, a protective net is provided inside the top of the air intake frame, the air intake frame and the protective net are connected by a snap-on assembly, a fixing ring is fixedly connected to the top of the inner wall of the air intake frame and below the protective net, and the protective net is placed on the top of the fixing ring.

[0008] Preferably, the clamping assembly includes symmetrically distributed insert cylinders, which are fixedly connected to one side of the inner wall of the protective net, and the side of the air intake frame is fixedly connected with symmetrically distributed mounting cylinders, and the interior of the mounting cylinder is slidably clamped with a slider, and the top of the slider is fixedly connected with a telescopic rod, and the top of the telescopic rod extends to the top of the mounting cylinder and is fixedly connected with a top plate, and the bottom end of the top plate is fixedly connected with an insert rod on the side away from the telescopic rod, and the insert rod is movably inserted in the insert cylinder.

[0009] Preferably, a spring is provided between the top surface of the slider and the top end of the inner wall of the mounting tube, and the spring is movably sleeved on the outer side of the telescopic rod.

[0010] Preferably, a pull rod is fixedly connected to a side of the top end of the top plate away from the insertion rod.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The extension of the piston rod of the electric cylinder pushes the connecting block to move synchronously, and at the same time drives the rotating rod and the cleaning brush to rotate, so that the rotating rod is located on the diameter of the air intake frame. At this time, the fan blades are located between the two cleaning brushes and at the junction of the cleaning brushes. The fan blades are then driven to rotate by the servo motor, so that a relative displacement occurs between the fan blades and the cleaning brushes, so that the cleaning brush is used to clean the fan blades and remove dust from the fan blades, thereby avoiding dust accumulation on the fan blades and increasing the fan load, further increasing the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] 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.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This utility model is a cross-sectional view Figure 1 .

[0016] Figure 3 This utility model is a cross-sectional view Figure 1 two.

[0017] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle.

[0018] In the figure: 1. Mounting plate; 2. Air intake frame; 3. Horizontal plate; 4. Servo motor; 5. Fan blades; 6. Electric cylinder; 7. Rotating rod; 8. Cleaning brush; 9. Connecting block; 11. Fixing ring; 12. Protective net; 13. Insertion tube; 14. Mounting tube; 15. Slider; 16. Telescopic rod; 17. Spring; 18. Insertion rod; 19. Top plate; 20. Pull rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 are within the scope of protection of the present invention.

[0020] Example: Figure 1-4 As shown, the utility model provides a self-cleaning device for HVAC, including a mounting plate 1, the top of the mounting plate 1 is fixedly connected to an air intake frame 2, the interior of the air intake frame 2 is fixedly connected to a horizontal plate 3, a servo motor 4 is fixedly mounted on one side of the horizontal plate 3, a driving end of the servo motor 4 is fixedly connected to a fan blade 5, one side of the inner wall of the air intake frame 2 is rotatably connected to an electric cylinder 6, the interior of the air intake frame 2 is rotatably connected to one side close to the electric cylinder 6, a cleaning brush 8 is fixedly connected to the sides of the two rotating rods 7 close to each other, the blades of the fan blade 5 are placed between the two cleaning brushes 8 and in contact with the cleaning brush 8, a connecting block 9 is fixedly connected between the two rotating rods 7, and the piston rod of the electric cylinder 6 is rotatably connected to the connecting block 9.

[0021] A protective net 12 is provided inside the top of the air intake frame 2. The air intake frame 2 and the protective net 12 are connected by a snap-on assembly. A fixing ring 11 is fixedly connected to the top of the inner wall of the air intake frame 2 and below the protective net 12. The protective net 12 is placed on the top of the fixing ring 11.

[0022] By adopting the above technical solution and setting the protective net 12, the air inlet of the air intake frame 2 can be easily protected, effectively preventing external objects or small animals from entering the interior of the air intake frame 2, and avoiding damage or interference to the fan blades 5.

[0023] The snap-on assembly includes symmetrically distributed insert tubes 13, which are fixedly connected to one side of the inner wall of the protective net 12. The side of the air intake frame 2 is fixedly connected with a symmetrically distributed mounting tube 14. The interior of the mounting tube 14 is slidably snap-connected with a slider 15. The top of the slider 15 is fixedly connected with a telescopic rod 16. The top of the telescopic rod 16 extends to the top of the mounting tube 14 and is fixedly connected with a top plate 19. The bottom end of the top plate 19 is fixedly connected with an insert rod 18 on the side away from the telescopic rod 16. The insert rod 18 is movably inserted into the insert tube 13.

[0024] By adopting the above technical solution, when installing the protective net 12, the protective net 12 is positioned by placing it on the top of the fixing ring 11, and then the bottom end of the insertion rod 18 is inserted into the interior of the insertion tube 13 to fix the position of the protective net 12.

[0025] A spring 17 is provided between the top surface of the slider 15 and the top end of the inner wall of the mounting tube 14 . The spring 17 is movably sleeved on the outer side of the telescopic rod 16 .

[0026] By adopting the above technical solution and providing the spring 17 , the telescopic rod 16 can be easily reset. At the same time, the elastic force of the spring 17 can be used to make the insertion rod 18 more firmly connected.

[0027] A pull rod 20 is fixedly connected to the top of the top plate 19 on a side away from the insertion rod 18 .

[0028] By adopting the above technical solution and providing the pull rod 20, the unlocking operation is facilitated.

[0029] Working principle: When the HVAC is in use, the air inlet of the air intake frame 2 is protected by setting the protective net 12 to prevent external objects or small animals from entering the interior of the air intake frame 2 and to avoid damage or interference to the fan blades 5. When installing the protective net 12, the protective net 12 is positioned by placing it on the top of the fixing ring 11, and then the bottom end of the insertion rod 18 is inserted into the interior of the insertion tube 13 to fix the position of the protective net 12. When disassembling, it is only necessary to pull the pull rod 20 upwards, and at the same time drive the slider 15, the telescopic rod 16 and the insertion rod 18 to move upwards, and compress the spring 17 to pull the insertion rod 18 out from the interior of the insertion tube 13, thereby releasing the restriction on the vertical movement of the protective net 12, and then rotate the top plate 19 to move the insertion rod 18 out from above the protective net 12, so as to facilitate the removal of the protective net 12 from the interior of the fixing ring 11;

[0030] After the fan blades of the HVAC have been working for a period of time, the extension of the piston rod of the electric cylinder 6 pushes the connecting block 9 to move synchronously, and at the same time drives the rotating rod 7 and the cleaning brush 8 to rotate, so that the rotating rod 7 is located on the diameter of the air intake frame 2. At this time, the blades of the fan blade 5 are located between the two cleaning brushes 8 and at the junction of the cleaning brushes 8. Then, the servo motor 4 drives the fan blade 5 to rotate, so that the blades of the fan blade 5 and the cleaning brush 8 are relatively displaced, so that the cleaning brush 8 is used to clean the blades of the fan blade 5 and remove the dust on the blades of the fan blade 5.

[0031] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A self-cleaning device for a heating, ventilation and air conditioning system, comprising a mounting plate (1), characterized in that: The top of the mounting plate (1) is fixedly connected to an air intake frame (2), the interior of the air intake frame (2) is fixedly connected to a transverse plate (3), a servo motor (4) is fixedly installed on one side of the transverse plate (3), a driving end of the servo motor (4) is fixedly connected to a fan blade (5), one side of the inner wall of the air intake frame (2) is rotatably connected to an electric cylinder (6), the interior of the air intake frame (2) is rotatably connected to a side close to the electric cylinder (6), and the two rotating rods (7) are fixedly connected to a cleaning brush (8) on the sides close to each other, the blades of the fan blade (5) are placed between the two cleaning brushes (8) and in contact with the cleaning brush (8), a connecting block (9) is fixedly connected between the two rotating rods (7), and the piston rod of the electric cylinder (6) is rotatably connected to the connecting block (9).

2. A self-cleaning device for HVAC according to claim 1, characterized in that: A protective net (12) is provided inside the top end of the air intake frame (2), and the air intake frame (2) and the protective net (12) are connected via a snap-fit ​​assembly.

3. A self-cleaning device for HVAC according to claim 2, characterized in that: The clamping assembly includes symmetrically distributed insert cylinders (13), the insert cylinders (13) are fixedly connected to one side of the inner wall of the protective net (12), the side of the air intake frame (2) is fixedly connected to a symmetrically distributed mounting cylinder (14), the interior of the mounting cylinder (14) is slidably clamped with a slider (15), the top end of the slider (15) is fixedly connected to a telescopic rod (16), the top end of the telescopic rod (16) extends to the top end of the mounting cylinder (14) and is fixedly connected to a top plate (19), the bottom end of the top plate (19) is fixedly connected to an insert rod (18) away from the side of the telescopic rod (16), and the insert rod (18) is movably inserted in the insert cylinder (13).

4. A self-cleaning device for HVAC according to claim 3, characterized in that: A spring (17) is provided between the top surface of the slider (15) and the top end of the inner wall of the mounting tube (14), and the spring (17) is movably sleeved on the outer side of the telescopic rod (16).

5. The self-cleaning device for HVAC according to claim 3, characterized in that: A pull rod (20) is fixedly connected to the top of the top plate (19) at a side away from the insertion rod (18).

6. The self-cleaning device for HVAC according to claim 2, characterized in that: A fixing ring (11) is fixedly connected to the top of the inner wall of the air intake frame (2) and located below the protective net (12), and the protective net (12) is placed on the top of the fixing ring (11).

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