A constant air volume regulating device for air conditioner

Abstract

The present invention discloses a constant air volume adjustment device for an air conditioner, which relates to the technical field of air conditioners, including an air conditioner body, a dust baffle fixedly connected to the front of the air conditioner body, an air outlet duct provided on the front of the air conditioner body, a shielding device installed on the front of the air outlet duct, and an adjustment device and a closing device fixedly connected to the front of the shielding device; the present invention provides a shielding device, and when the rolling roller reels the windshield blades to a preset degree, the air outlet duct is completely opened. If the air volume needs to be adjusted, it is only necessary to start the first motor in reverse, the rolling roller rotates in the opposite direction and releases the hinge plate, and the hinge plate drives the windshield blades to unfold while sliding inside the shell. When the block is embedded in the air outlet duct, the shielding of the air outlet duct is completed, which facilitates subsequent air volume adjustment, thereby ensuring that the air conditioner body can achieve maximum air volume output, avoiding wind speed limitation due to wind resistance in specific application scenarios, thereby improving the air supply capacity and overall operating efficiency of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a constant air volume regulating device for air conditioning. Background Art

[0002] An air conditioner is a device used to regulate indoor air temperature, humidity, airflow and air quality. It is widely used in residential, commercial and industrial environments. Its basic working principle is to cool or heat the air through the circulation conversion of refrigerant, and use a fan to deliver the treated air into the room. Modern air conditioning systems usually include a compressor, condenser, evaporator, expansion valve and duct system to achieve efficient cooling and heating functions. With the support of an intelligent control system, it can automatically adjust the operating mode according to the ambient temperature. In air conditioners equipped with a constant air volume adjustment device, the air volume adjustment is more precise, and a stable air supply volume can be maintained, avoiding the impact of wind speed changes on indoor temperature distribution and improving the uniformity of temperature control. This not only improves the energy efficiency of the air conditioner, but also optimizes air flow, improves indoor comfort, reduces noise, and in some application scenarios, helps save energy and extend equipment life. It is especially suitable for places with high requirements for temperature and humidity, such as laboratories, data centers and medical environments.

[0003] The prior art discloses some patents in the field of air conditioning technology, among which the invention patent with publication number CN117824106A discloses an air volume adjustment device for a heating, ventilation and air conditioning unit. Specifically, the invention relates to the field of air conditioning technology, and specifically to an air volume adjustment device for a heating, ventilation and air conditioning unit. The device can be installed on the heating, ventilation and air conditioning unit through a support frame, and then a driving component and an adjustment component are placed in the support frame. Finally, the device is fixed by a cover plate. The limit block can limit the cover plate. When adjusting the air volume, the drive motor is started to drive the transmission belt to rotate, and the transmission belt drives multiple rotating heads to rotate in turn. Support rollers are correspondingly installed on the rotating heads. The support rollers can drive the blades to rotate, thereby controlling the air volume. When the blades need to be cleaned after a period of use, the limit block can be pulled to release the restriction on the cover plate, and then the cover plate can be removed, so that the installation frame can be removed from the support frame, and the support rollers and blades can be removed at the same time for easy cleaning. During installation, the protrusions on the support rollers can be installed corresponding to the slots on the rotating heads, making it easier to disassemble and clean the blades.

[0004] However, the constant air volume regulating device for existing air conditioners has the following shortcomings:

[0005] 1. Existing ventilation systems typically use fixed blades to adjust air volume. However, when the device needs to reach maximum wind speed, although multiple blades can be adjusted laterally to increase the ventilation area, the blades themselves still create a certain resistance to the airflow, affecting the air volume output. This design may not achieve the ideal maximum wind speed in certain specific application scenarios, limiting the device's air supply capacity and overall efficiency.

[0006] 2. Existing wind speed adjustment methods usually rely on manual adjustment of the fan blade angle. However, during the adjustment process, applying too much or too little force may cause the fan blade angle to deviate, making it difficult to accurately control the air volume output. Users often need to make multiple fine-tuning adjustments to achieve the appropriate air supply state, which not only increases the complexity of operation, but may also affect the user experience and efficiency, especially in scenarios where the wind speed needs to be adjusted quickly.

[0007] 3. During long-term use, dust is easily accumulated on the surface of the fan blades, especially in an environment with poor air quality. This phenomenon is more prominent. When the air conditioner or ventilation equipment is running, the dust on the fan blades may spread into the room with the air flow, causing the air quality to deteriorate and even affect the health of users, especially those with allergies. In addition, dust accumulation may also affect the normal operation of the fan blades, reduce the operating efficiency of the equipment, lead to increased energy consumption, and increase the frequency and cost of maintenance and cleaning, affecting the long-term service life of the equipment, and may eventually cause equipment failure and affect the stability of the overall operation.

[0008] Therefore, we propose a constant air volume regulating device for air conditioning in order to solve the above problems. Summary of the Invention

[0009] The purpose of the present invention is to provide a constant air volume adjustment device for air conditioners to solve the problems of traditional air conditioners in which the air volume is affected by the obstruction of blades during air outlet, the wind speed adjustment method is not accurate enough, and the fan blades are prone to dust accumulation after long-term use, resulting in a decrease in air quality.

[0010] To achieve the above-mentioned object, the present invention provides the following technical solution: a constant air volume adjustment device for an air conditioner, comprising an air conditioner body, a dust shield fixedly connected to the front of the air conditioner body, an air outlet provided on the front of the air conditioner body, a shielding device installed on the front of the air outlet, an adjustment device and a closing device fixedly connected to the front of the shielding device, and a cleaning device fixedly connected to the shielding device;

[0011] The shielding device includes a rolling roller, a rope is wound around the outside of the rolling roller, a hinge plate is fixedly connected to the outside of the rope, the hinge plate is connected inside by a hinge, and a windshield blade for shielding the air outlet is movably connected to the outside of the hinge plate, and the windshield blade can be completely separated from the inside of the air outlet;

[0012] The cleaning device includes a film roller and a winding roller. The film roller is overlapped on the winding roller and can be used to clean the dust adhered to the surface of the wound windshield blade. The winding roller can be used to recover and wind up the film adhered with dust.

[0013] Preferably, the shielding device also includes two connecting plates, the two connecting plates are fixedly connected to the air outlet, and a shell is fixedly connected under the two connecting plates, and the shell is fixedly connected to the front of the air outlet. One side of one of the connecting plates is fixedly connected to a mounting seat, and a first motor is fixedly connected to the mounting seat, and the output end of the first motor is fixedly connected to the outside of the rolling roller, and the rolling roller is rotatably connected in the two connecting plates, and the hinged plate is slidably connected in the shell, and a card block is fixedly connected under the windshield blade, and a long slot is opened in the air outlet, and the card block is stuck in the long slot.

[0014] Preferably, the adjustment device includes a second motor, the output end of the second motor is fixedly connected to the transmission gear, the transmission gear is meshed with a tooth plate on the outside, the tooth plate is slidably connected to a sliding frame on the outside, the sliding frame is fixedly connected to the front of one of the shells, one of the front sides of the shells is evenly distributed with connecting shafts, a half gear is rotatably connected to the outside of the connecting shaft, and a shift rod is fixedly connected to one side of the half gear.

[0015] Preferably, the shift lever is clamped in the corresponding windshield blade, and a first hollow shell is fixedly connected to the front side of one of the housings, and the second motor is fixedly connected in the first hollow shell.

[0016] Preferably, the closing device includes a hydraulic cylinder, which is fixedly connected to the front side of one of the shells, and the output end of the hydraulic cylinder is fixedly connected to a push rod, and the outside of the push rod is hinged with a first connecting rod through a pin shaft, and one side of the hydraulic cylinder is fixedly connected to a connecting block, and the connecting block and the outside of the first connecting rod are hinged with the same second connecting rod through a pin shaft, and a pressure rod is connected through the inside of the first connecting rod, and one side of the pressure rod is fixedly connected to a pressure plate, and the front side of one of the shells is fixedly connected to a second empty shell, and a rectangular groove is opened in the second empty shell, and the first connecting rod and the second connecting rod are both slidably connected in the rectangular groove.

[0017] Preferably, two control buttons are installed on one side of the first empty shell and the second empty shell. The two control buttons in the first empty shell are used to control the forward and reverse rotation of the second motor, and the two control buttons in the second empty shell are used to control the extension and retraction of the hydraulic cylinder.

[0018] Preferably, the cleaning device also includes two rectangular plates, both of which are connected with bearings, one of which is fixedly connected to an elastic rod, and the other is fixedly connected to a long rod, and the winding roller is clamped in the elastic rod and the long rod, one side of one of the rectangular plates is fixedly connected to a mounting frame, and the mounting frame is fixedly connected to a third motor, and the output end of the third motor is fixedly connected to the outside of the long rod, and the two rectangular plates are fixedly connected to the bottom of the long plates, and a slider is slidably connected to the long plate, and one of the sliders is fixedly connected to a telescopic rod, and a return spring is provided on the outer sleeve of the telescopic rod, and a connecting frame is connected through the slider, and the spool roller is rotatably connected to the connecting frame through a rotating shaft, and the spool roller is wound around the winding roller by tape.

[0019] Preferably, one end of the return spring is fixedly connected under the long board, and the other end of the return spring is fixedly connected to the outside of the telescopic rod. A mounting handle is provided on one side of the connecting frame, and a threaded hole is provided in the mounting handle. An external thread is provided on one side of the rotating shaft in the film roller, and the mounting handle is threadedly connected to the outside of the rotating shaft of the film roller.

[0020] Preferably, one side of the connecting frame extends to the outside of one of the sliders, and a slide is sleeved on the extended end, a limiting hole is provided in the slide, and a limiting rod is provided through one of the long plates.

[0021] Preferably, the slide plate is overlapped outside the adjacent long plate, and the inner diameter of the limiting hole is slightly larger than the diameter of the cross section of the limiting rod.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] When the air volume needs to be adjusted, only the first motor needs to be started in the reverse direction, the rolling roller rotates in the reverse direction and releases the hinge plate, and the hinge plate slides inside the shell and drives the windshield blades to unfold. When the card block is embedded in the air outlet duct, the air outlet duct is blocked, which facilitates subsequent air volume adjustment, thereby ensuring that the air conditioner body can achieve maximum air volume output, avoiding wind speed limitation due to wind resistance in specific application scenarios, thereby improving the air supply capacity and overall operating efficiency of the equipment.

[0024] 2. The present invention provides an adjustment device and a closing device. To adjust the air volume, the air conditioner body is first started. Under the influence of the wind speed inside the air outlet, the windshield blades will slightly swing. By pressing the control button, the control button drives the second motor to rotate in the forward direction. The second motor drives the transmission gear to rotate synchronously, which in turn drives the gear plate to move. The gear plate drives the half gear to rotate freely via the connecting shaft. The connecting shaft further drives the lever to rotate. The lever engages the corresponding windshield blade. As the lever is gradually raised, the opening of the windshield blade gradually increases, achieving precise control of the air volume. When the air outlet needs to be completely closed, the lever is reset and the control button located on the second hollow housing is pressed again. The hydraulic cylinder activates the first connecting rod to move. The first connecting rod pulls the push rod to rotate externally through the second connecting rod, and finally adjusts the angle of the pressure plate so that the pressure plate gradually engages the outside of the windshield blade until it is fully attached and fixed. When the pressing stops, the air outlet is closed. When the closed state needs to be released, the pressure plate is simply reset by pressing another control button, and normal air supply is restored, achieving precise adjustment of the air volume and complete closing of the air outlet.

[0025] When the windshield blade is released, the sliding rod only needs to be pulled to slide the slider inside the long plate, so that the film roller is away from the winding roller, and the limit rod is inserted into the limit hole and the corresponding long plate to fix the position of the slide plate, so that dust is efficiently adhered when the windshield blade is reeled in, and the used tape is recovered and wound. At the same time, when the windshield blade is released, the film roller can automatically move away from the windshield blade, ensuring that the cleaning device does not affect the normal operation of the air outlet structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional structural diagram of a constant air volume adjustment device for an air conditioner according to the present invention;

[0027] Figure 2 This is a three-dimensional structural diagram of an air outlet duct of a constant air volume adjustment device for an air conditioner according to the present invention;

[0028] Figure 3 This is a three-dimensional structural diagram of a shielding device of a constant air volume adjustment device for an air conditioner according to the present invention;

[0029] Figure 4 The invention provides a constant air volume regulating device for air conditioner Figure 3 A schematic diagram of the structure of the enlarged part A;

[0030] Figure 5 The invention provides a constant air volume regulating device for air conditioner Figure 3 A schematic diagram of the structure of the enlarged portion B;

[0031] Figure 6 This is a three-dimensional structural diagram of a cleaning device for a constant air volume adjustment device for an air conditioner according to the present invention;

[0032] Figure 7 This is a three-dimensional structural diagram of a winding roller of a constant air volume adjustment device for an air conditioner according to the present invention;

[0033] Figure 8 The invention provides a constant air volume regulating device for air conditioner Figure 7 Schematic diagram of the enlarged structure of part C.

[0034] In the figure: 1. air conditioner body; 2. dust shield; 3. air outlet; 4. shielding device; 41. connecting plate; 42. housing; 43. mounting base; 44. first motor; 45. rolling roller; 46. rope; 47. hinge plate; 48. wind shield blade; 49. clamping block; 5. adjustment device; 51. second motor; 52. transmission gear; 53. tooth plate; 54. slide frame; 55. connecting shaft; 56. half gear; 57. lever; 58. first empty housing; 6. closing device; 61. hydraulic cylinder; 62. push rod; 63. first connecting rod; 64. connecting rod Connecting block; 65, second connecting rod; 66, pressure rod; 67, pressure plate; 68, second empty shell; 69, rectangular groove; 7, cleaning device; 701, rectangular plate; 702, bearing; 703, elastic rod; 704, winding roller; 705, long rod; 706, mounting bracket; 707, third motor; 708, film roller; 709, long plate; 710, slider; 711, telescopic rod; 712, return spring; 713, connecting frame; 714, mounting handle; 715, slide plate; 716, limit hole; 717, limit rod; 8, control button. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] Please see the attached Figure 1 -Attached Figure 8As shown, the present invention provides a technical solution: a constant air volume adjustment device for an air conditioner, comprising an air conditioner body 1, a dust shield 2 fixedly connected to the front of the air conditioner body 1, an air outlet 3 provided on the front of the air outlet 3, a shielding device 4 installed on the front of the air outlet 3, an adjustment device 5 and a closing device 6 fixedly connected to the front of the shielding device 4, and a cleaning device 7 fixedly connected to the shielding device 4;

[0037] The shielding device 4 includes a rolling roller 45, a rope 46 is wound around the outside of the rolling roller 45, a hinge plate 47 is fixedly connected to the outside of the rope 46, and the hinge plate 47 is connected to the inside via a hinge. A windshield blade 48 for shielding the air outlet 3 is movably connected to the outside of the hinge plate 47. The windshield blade 48 can be completely separated from the inside of the air outlet 3;

[0038] The cleaning device 7 includes a film roller 708 and a winding roller 704. The film roller 708 is overlapped on the winding roller 45 and can be used to clean the dust adhered to the surface of the reeled windshield blade 48. The winding roller 704 can be used to recover and wind up the film with dust adhered to it. In the cleaning device 7, the cooperation between the film roller 708 and the winding roller 704 enables the dust adhered to the surface of the windshield blade 48 to be efficiently transferred to the tape and recovered under the action of the winding roller 704. This design not only ensures that no secondary pollution will be generated during the cleaning process, but also reduces the need for frequent replacement of cleaning components and improves the maintenance efficiency of the equipment. In addition, the film roller 708 always adheres to the outer surface of the winding roller 45, and dust adhesion is synchronously performed when the windshield blade 48 is reeled, ensuring that the cleaning effect is not affected by wind speed.

[0039] Example 1, according to Figure 1-Figure 3 As shown, the shielding device 4 also includes two connecting plates 41, which are fixedly connected to the air outlet 3. A shell 42 is fixedly connected to the bottom of the two connecting plates 41, and the shell 42 is fixedly connected to the front of the air outlet 3. One side of one of the connecting plates 41 is fixedly connected to a mounting seat 43, and a first motor 44 is fixedly connected to the mounting seat 43. The output end of the first motor 44 is fixedly connected to the outside of the rolling roller 45, and the rolling roller 45 is rotatably connected to the two connecting plates 41. The hinged plate 47 is slidably connected to the shell 42. A card block 49 is fixedly connected to the bottom of the windshield blade 48. A long slot is provided in the air outlet 3, and the card block 49 is clamped in the long slot.

[0040] The effect achieved by the entire embodiment 1 is: by setting a linkage structure of the rolling roller 45 and the hinged plate 47, the windshield blade 48 can slide smoothly along the inside of the shell 42 to achieve precise opening and closing control. Compared with the traditional fixed blade adjustment method, this design effectively reduces wind resistance and improves the efficiency of maximum air volume output; at the same time, the block 49 has a certain gravity and is stuck in the long groove in the air outlet duct 3, which can avoid the problem of shaking under the blowing of wind.

[0041] Example 2, according to Figure 3-Figure 5 As shown, the adjustment device 5 includes a second motor 51, the output end of the second motor 51 is fixedly connected to the transmission gear 52, the transmission gear 52 is meshed with a tooth plate 53 on the outside, and the tooth plate 53 is slidably connected to the sliding frame 54 on the outside, and the sliding frame 54 is fixedly connected to the front of one of the shells 42, and the front of one of the shells 42 is evenly distributed with connecting shafts 55, and the connecting shaft 55 is rotatably connected to the outside of the half gear 56, and one side of the half gear 56 is fixedly connected to a shift rod 57, and the shift rod 57 is clamped in the corresponding windshield blade 48, and the front of one of the shells 42 is fixedly connected to a first empty shell 58, and the second motor 51 is fixedly connected in the first empty shell 58, and the closing device 6 includes a hydraulic cylinder 61, which is fixedly connected to the front of one of the shells 42, and the output end of the hydraulic cylinder 61 is fixedly connected to a push rod 62, which pushes A first connecting rod 63 is hinged to the outside of the rod 62 through a pin shaft, and a connecting block 64 is fixedly connected to one side of the hydraulic cylinder 61. The connecting block 64 and the outside of the first connecting rod 63 are hinged to the same second connecting rod 65 through a pin shaft. A pressure rod 66 is connected through the inside of the first connecting rod 63, and a pressure plate 67 is fixedly connected to one side of the pressure rod 66. A second empty shell 68 is fixedly connected to the front of one of the shells 42, and a rectangular groove 69 is opened in the second empty shell 68. The first connecting rod 63 and the second connecting rod 65 are both slidably connected in the rectangular groove 69. Two control buttons 8 are installed on one side of the first empty shell 58 and the second empty shell 68. The two control buttons 8 in the first empty shell 58 are used to control the forward and reverse rotation of the second motor 51, and the two control buttons 8 in the second empty shell 68 are used to control the extension and retraction of the hydraulic cylinder 61.

[0042] The effects achieved by the entire embodiment 2 are as follows: first, the air volume adjustment part relies on the drive of the second motor 51. After the second motor 51 is powered on, it drives the transmission gear 52 to rotate, and the movement of the transmission gear 52 further acts on the tooth plate 53, causing it to slide along the set trajectory. During the sliding process of the tooth plate 53, it engages with the half gear 56 and cooperates with the shift lever 57, so that the opening and closing angles of the windshield blades 48 can be accurately adjusted according to needs, ensuring the accuracy of air volume adjustment. Compared with the traditional manual adjustment method, this solution eliminates the errors that may be caused by human adjustment through the combined action of the second motor 51 drive and the transmission gear 52, thereby achieving more stable and controllable air volume adjustment, so that the equipment can maintain a high adjustment accuracy under various working conditions. In addition, in order to achieve rapid closure of the air outlet 3, the device further adopts a hydraulic cylinder 61 The linkage structure between the push rod 62, the connecting rod and the pressure plate 67 ensures that the air outlet 3 can be quickly closed when needed to prevent air leakage. When the hydraulic cylinder 61 is started, the piston movement inside it pushes the push rod 62 forward, and the push rod 62 drives the connecting rod to move synchronously through the pin shaft, causing the pressure rod 66 to swing accordingly, and finally prompting the pressure plate 67 to fit precisely and lock on the outside of the windshield blade 48. The synergistic effect of this structure ensures that the air outlet 3 can be completely closed when it is necessary to isolate the airflow, and no gaps or leaks will be generated due to external force or equipment vibration, ensuring the reliability of airflow isolation. This quick closing method is particularly suitable for application scenarios where the airflow needs to be temporarily cut off. For example, when the equipment enters energy-saving mode, unnecessary wind energy loss can be avoided, or when temporary adjustments are made under certain special working conditions, the tightness of the air outlet closure can be ensured, thereby improving the adaptability and energy efficiency management level of the system.

[0043] Example 3, according to Figure 6-Figure 8As shown, the cleaning device 7 also includes two rectangular plates 701, and bearings 702 are connected through the two rectangular plates 701. An elastic rod 703 is fixedly connected to one of the bearings 702, and a long rod 705 is fixedly connected to the other bearing 702. The winding roller 704 is clamped in the elastic rod 703 and the long rod 705. A mounting bracket 706 is fixedly connected to one side of one of the rectangular plates 701. A third motor 707 is fixedly connected to the mounting bracket 706. The output end of the third motor 707 is fixedly connected to the outside of the long rod 705. A long plate 709 is fixedly connected to the bottom of the two rectangular plates 701. A slider 710 is slidably connected to the long plate 709. A telescopic rod 711 is fixedly connected to one of the sliders 710. The telescopic rod 711 is provided with a pull-back spring 712. A connecting frame 713 is connected through the slider 710. The film roller 708 The spool 708 is connected to the spool holder 704 by a screw thread, and the spool holder 704 is connected to the spool holder 706 by a screw thread, and the spool holder 706 is connected to the spool holder 708 by a screw thread.

[0044] The effect achieved by the entire embodiment 3 is as follows: through the cooperation of the film roller 708 and the winding roller 704, dust can be cleaned synchronously when the windshield blade 48 is wound, thereby preventing dust from being brought into the room by the wind during the operation of the air conditioner. This design effectively reduces dust accumulation and improves air quality, while reducing the user's need to frequently clean the windshield blade 48, thereby extending the maintenance cycle of the equipment; through the cooperation of the slider 710, the telescopic rod 711 and the return spring 712, the film roller 708 can automatically move away from the working area when the windshield blade 48 is released, thereby avoiding additional resistance during the unfolding of the windshield blade 48; the mounting handle 714 is connected with a thread so that the film roller 708 can be quickly disassembled and replaced. When the tape is used up or needs to be cleaned, the user only needs to rotate the mounting handle 714 to easily remove the film roller 708 without the need for additional tools, and the winding roller 704 can be quickly removed through the elastic rod 703 to remove the used tape.

[0045] The working principle of the entire equipment is as follows: when it is necessary to adjust the air volume to the maximum, the first motor 44 drives the winding roller 45 to rotate inside the two connecting plates 41, driving the rope 46 and the hinged plate 47 to be synchronously wound to the outside of the winding roller 45, and the hinged plate 47 slides inside the shell 42 while gradually reeling in the windshield blades 48, and finally completely opening the air outlet 3; if it is necessary to reduce the air volume or close the air outlet, the first motor 44 rotates in the opposite direction to release the hinged plate 47, so that the windshield blades 48 are unfolded and fixed to block the air outlet 3 through the block 49, thereby realizing air volume adjustment, and the adjustment device 5 drives the transmission gear 52 and the tooth plate 53 to move through the second motor 51, driving the half gear 56 and the dial rod 57 to rotate, so that the dial rod 57 is gradually lifted or reset, thereby adjusting the opening size of the windshield blade 48 to accurately control the air volume. When the air outlet needs to be completely closed, press the control button 8 to start the hydraulic cylinder 6 1, drives the connecting rod and the push rod 62 to adjust the angle of the pressure plate 67, so that the pressure plate 67 is gradually stuck in the outside of the windshield blade 48 and fixed, so that the air outlet duct 3 is closed; press the reset button to release the closed state and restore the air supply function. In addition, during the rewinding process of the windshield blade 48, the long rod 705 is driven to rotate by the third motor 707, driving the winding roller 704 to rotate and pulling the film roller 708, so that the tape covers the surface of the windshield blade 48 and adheres to the dust. At the same time, the return spring 712 applies elastic force to make the slider 710 slide along the long plate 709, ensuring that the film roller 708 always fits the outer surface of the winding roller 45, realizing automatic cleaning of the windshield blade 48 during the rewinding process, and fixing the position of the slider 710 by the limiting structure to ensure that the cleaning device 7 does not affect the normal air supply when the windshield blade 48 is unfolded, thus completing the closing and cleaning process of the windshield blade 48.

[0046] Although the present invention 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 invention should be included in the scope of protection of the present invention.

Claims

1. A constant air volume regulating device for an air conditioner, comprising an air conditioner body (1), characterized in that: The front of the air conditioner body (1) is fixedly connected to a dust shield (2), the front of the air conditioner body (1) is provided with an air outlet (3), the front of the air outlet (3) is equipped with a shielding device (4), the front of the shielding device (4) is fixedly connected to an adjustment device (5) and a closing device (6), and the shielding device (4) is fixedly connected to a cleaning device (7); The shielding device (4) includes a rolling roller (45), a rope (46) is wound around the outside of the rolling roller (45), a hinge plate (47) is fixedly connected to the outside of the rope (46), the hinge plate (47) is connected to the inside via a hinge, and a windshield blade (48) for shielding the air outlet duct (3) is movably connected to the outside of the hinge plate (47), and the windshield blade (48) can be completely separated from the inside of the air outlet duct (3); The cleaning device (7) comprises a film roller (708) and a winding roller (704), wherein the film roller (708) is overlapped on the winding roller (45) and can be used to clean dust adhered to the surface of the reeled windshield blade (48), and the winding roller (704) can be used to recover and wind up the film adhered with dust; The shielding device (4) further comprises two connecting plates (41), the two connecting plates (41) being fixedly connected to the air outlet duct (3), a shell (42) being fixedly connected below the two connecting plates (41), the shell (42) being fixedly connected to the front of the air outlet duct (3), a mounting seat (43) being fixedly connected to one side of one of the connecting plates (41), a first motor (44) being fixedly connected to the mounting seat (43), an output end of the first motor (44) being fixedly connected to the outside of a rolling roller (45), the rolling roller (45) being rotatably connected inside the two connecting plates (41), the hinged plate (47) being slidably connected inside the shell (42), a clamping block (49) being fixedly connected below the windshield blade (48), a long slot being provided in the air outlet duct (3), the clamping block (49) being clamped in the long slot; The adjustment device (5) includes a second motor (51), an output end of the second motor (51) is fixedly connected to a transmission gear (52), a tooth plate (53) is meshed on the outside of the transmission gear (52), a sliding frame (54) is slidably connected to the outside of the tooth plate (53), the sliding frame (54) is fixedly connected to the front of one of the shells (42), a connecting shaft (55) is evenly distributed on the front of one of the shells (42), a half gear (56) is rotatably connected to the outside of the connecting shaft (55), a shifting rod (57) is fixedly connected to one side of the half gear (56), and the shifting rod (57) is clamped in the corresponding windshield blade (48), a first empty shell (58) is fixedly connected to the front of one of the shells (42), and the second motor (51) is fixedly connected in the first empty shell (58).

2. The constant air volume regulating device for an air conditioner according to claim 1, characterized in that: The closing device (6) includes a hydraulic cylinder (61), which is fixedly connected to the front of one of the housings (42). The output end of the hydraulic cylinder (61) is fixedly connected to a push rod (62), and the push rod (62) is hinged to a first connecting rod (63) on the outside through a pin. One side of the hydraulic cylinder (61) is fixedly connected to a connecting block (64), and the connecting block (64) and the first connecting rod (63) are hinged to the same second connecting rod (65) on the outside through a pin. A pressure rod (66) is connected through the inside of the first connecting rod (63), and a pressure plate (67) is fixedly connected to one side of the pressure rod (66). A second empty shell (68) is fixedly connected to the front of one of the housings (42), and a rectangular groove (69) is provided in the second empty shell (68). The first connecting rod (63) and the second connecting rod (65) are both slidably connected to the rectangular groove (69).

3. The constant air volume regulating device for an air conditioner according to claim 2, characterized in that: Two control buttons (8) are installed on one side of the first empty shell (58) and the second empty shell (68). The two control buttons (8) in the first empty shell (58) are used to control the forward and reverse rotation of the second motor (51), and the two control buttons (8) in the second empty shell (68) are used to control the extension and retraction of the hydraulic cylinder (61).

4. The constant air volume regulating device for an air conditioner according to claim 1, characterized in that: The cleaning device (7) further comprises two rectangular plates (701), wherein bearings (702) are connected through the two rectangular plates (701), wherein an elastic rod (703) is fixedly connected to one of the bearings (702), and a long rod (705) is fixedly connected to the other bearing (702), wherein the winding roller (704) is clamped in the elastic rod (703) and the long rod (705), wherein a mounting frame (706) is fixedly connected to one side of one of the rectangular plates (701), and a third motor (707) is fixedly connected to the mounting frame (706), wherein the third motor (707) is fixedly connected to the third motor (707). The output end of the device 7 is fixedly connected to the outside of the long rod (705), and the two rectangular plates (701) are fixedly connected to the long plates (709), and the long plates (709) are slidably connected to the sliders (710), and a telescopic rod (711) is fixedly connected to one of the sliders (710), and the telescopic rod (711) is provided with a return spring (712) on its outer cover, and a connecting frame (713) is connected through the slider (710), and the film roller (708) is rotatably connected to the connecting frame (713) via a rotating shaft, and the film roller (708) is wound around the outside of the winding roller (704) by an adhesive tape.

5. The constant air volume regulating device for an air conditioner according to claim 4, characterized in that: One end of the return spring (712) is fixedly connected to the bottom of the long plate (709), and the other end of the return spring (712) is fixedly connected to the outside of the telescopic rod (711). A mounting handle (714) is provided on one side of the connection frame (713), and a threaded hole is provided in the mounting handle (714). One side of the rotating shaft in the film roller (708) is provided with an external thread, and the mounting handle (714) is threadedly connected to the outside of the rotating shaft of the film roller (708).

6. The constant air volume regulating device for an air conditioner according to claim 4, characterized in that: One side of the connecting frame (713) extends to the outside of one of the sliders (710), and a slide plate (715) is provided on the extension end. A limiting hole (716) is provided in the slide plate (715), and a limiting rod (717) is provided through one of the long plates (709).

7. The constant air volume regulating device for an air conditioner according to claim 6, characterized in that: The slide plate (715) is overlapped on the outside of the adjacent long plate (709), and the inner diameter of the limiting hole (716) is slightly larger than the diameter of the cross section of the limiting rod (717).

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