Device for reducing noise of air outlet of central air conditioner

Abstract

The utility model discloses a device for reducing noise of an air outlet of a central air conditioner, and relates to the technical field of noise reduction of air outlets of air conditioners. The fan blade comprises a mounting frame, two fixing holes are formed in the left side wall face and the right side wall face of the mounting frame respectively, a plurality of blades distributed at equal intervals are arranged in the mounting frame, rotating shafts are fixedly installed at the two ends of each blade respectively, and the end, away from the blade, of each rotating shaft is rotationally connected with the adjacent inner side wall face of the mounting frame. Fixing plates are arranged on the front side and the rear side in the mounting frame correspondingly. After the inclination direction of the blades is adjusted (the air outlet direction of the air conditioner is changed by adjusting the inclination direction of the blades), the two fixing plates are close to each other by controlling the transmission assembly until all the blades are clamped by the two fixing plates, and at the moment, due to clamping of the two fixing plates, each blade is not prone to loosening, and the air outlet direction of the air conditioner is changed. Therefore, the problem of noise caused by vibration of the blades by airflow after the central air conditioner is started can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of noise reduction of air outlets of air conditioners, and in particular to a device for reducing the noise of air outlets of central air conditioners. Background Art

[0002] Central air conditioning is an efficient, comfortable and energy-saving air conditioning system. It consists of a main unit connected to multiple indoor units through pipes, and cools or heats the indoor air through the circulation of refrigerant. With the popularity of central air conditioning in people's daily lives, more and more families and businesses are beginning to use central air conditioning. However, during use, some users may encounter the problem of loud noise from central air conditioning, which not only affects people's rest and work, but may also have adverse effects on the living and working environment.

[0003] However, there are many reasons for the noise of central air conditioners, among which the noise caused by loose blades at the air outlet is more common. Once the blades at the air outlet are loose, the airflow will cause the blades to vibrate and make noise when the central air conditioner is running. However, the existing central air conditioner air outlet does not have any blade fastening structure to avoid the noise caused by blade vibration to address the problem of loose blades. Therefore, a device for reducing the noise of the central air conditioner air outlet is proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the problem of loose blades at the existing central air-conditioning outlet, and no blade fastening structure is provided to avoid the problem of blade vibration and noise. The utility model provides a device for reducing the noise of the central air-conditioning outlet.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] A device for reducing the noise of a central air-conditioning outlet comprises a mounting frame, wherein two fixing holes are provided on the left and right side walls of the mounting frame, a plurality of blades distributed at equal intervals are arranged inside the mounting frame, a rotating shaft is fixedly installed at both ends of each blade, an end of each rotating shaft away from the blade is rotatably connected to the adjacent inner wall of the mounting frame, fixing plates are respectively arranged on the front and rear sides of the interior of the mounting frame, a through hole is provided on the side where the two fixing plates are close to each other and corresponds to the position of each blade, each rotating shaft passes through the inside of the adjacent through hole, and a transmission component for driving the two fixing plates to move closer to or away from each other is arranged on the left wall of the interior of the mounting frame.

[0007] Furthermore, the transmission assembly includes a groove, a groove is provided on the inner left wall of the mounting frame, a servo motor is fixedly installed inside the groove, a gear is fixedly installed on the output end of the servo motor, two slide grooves are provided on the inner left wall of the mounting frame, a slide rod is movably installed inside each slide groove, a rack is fixedly installed on the side of each slide rod close to the blade, the two racks are meshed with the gears, and the two fixed plates are fixedly connected to the two racks respectively.

[0008] Furthermore, each of the side walls of the blades is provided with a strip hole, a round rod is provided inside the mounting frame, the round rod passes through the inside of all the strip holes, and a driving component for driving the round rod to move up and down is provided on the inner right wall of the mounting frame.

[0009] Furthermore, the driving assembly includes a rectangular groove, a rectangular groove is opened on the inner right wall of the installation frame, a screw rod is movably installed inside the rectangular groove, a handwheel for driving the screw rod to rotate is movably installed on the top of the installation frame, a movable block is threadedly connected to the screw rod, and the round rod is fixedly connected to the movable block.

[0010] Furthermore, a magnetic strip is inlaid on the side wall of the round rod, and a magnetic block is inlaid on the inner side wall of each bar-shaped hole, and the magnetic strip and the magnetic block are attracted to each other.

[0011] Furthermore, buffer pads are fixedly mounted on the four outer wall surfaces of the installation frame, and the buffer pads on the front and rear sides are provided with round holes at the positions corresponding to each fixing hole.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model first places the installation frame at the designated installation position, and then penetrates the expansion bolts and threadedly connects the fixing holes to the wall, so as to achieve the effect of fixing the installation frame. In order to prevent the airflow from causing the blades to vibrate after the central air conditioner is started, after adjusting the inclination direction of the blades (the air outlet direction of the air conditioner is changed by adjusting the inclination direction of the blades), the two fixing plates are brought close to each other by controlling the transmission assembly until all the blades are clamped by the two fixing plates. At this time, due to the clamping of the two fixing plates, each blade will not be easily loosened, which can solve the problem of the airflow causing the blades to vibrate and cause noise after the central air conditioner is started. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a specific schematic diagram of the transmission assembly of the utility model;

[0016] Figure 3 It is a specific schematic diagram of the drive assembly of the utility model;

[0017] Figure 4 It is a specific schematic diagram of the blade of the utility model;

[0018] Figure numerals: 1. mounting frame; 2. fixing hole; 3. blade; 4. rotating shaft; 5. fixing plate; 6. through hole; 7. transmission assembly; 71. groove; 72. servo motor; 73. gear; 74. rack; 75. slide groove; 76. slide rod; 8. bar hole; 9. round rod; 10. driving assembly; 101. rectangular groove; 102. hand wheel; 103. screw rod; 104. movable block; 11. magnetic strip; 12. magnetic block; 13. buffer pad; 14. round hole. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] like Figures 1 to 4As shown, a device for reducing the noise of the air outlet of a central air conditioner comprises a mounting frame 1, two fixing holes 2 are provided on the left and right side walls of the mounting frame 1, a plurality of blades 3 distributed at equal intervals are arranged inside the mounting frame 1, a rotating shaft 4 is fixedly installed at both ends of each blade 3, an end of each rotating shaft 4 away from the blade 3 is rotatably connected to the adjacent inner wall of the mounting frame 1, fixing plates 5 are respectively arranged on the front and rear sides of the interior of the mounting frame 1, a through hole 6 is provided on the side where the two fixing plates 5 are close to each other and corresponds to the position of each blade 3, each rotating shaft 4 passes through the inside of the adjacent through hole 6, and a transmission component 7 for driving the two fixing plates 5 to move closer to or away from each other is arranged on the left wall of the interior of the mounting frame 1 It should be noted that, first, the installation frame 1 is placed at the designated installation position, and then the expansion bolts are passed through and threadedly connected to the fixing holes 2 in the wall, so as to achieve the effect of fixing the installation frame 1. In order to prevent the airflow from causing the blades 3 to vibrate after the central air conditioner is started, the inclination direction of the blades 3 can be adjusted (the air outlet direction of the air conditioner is changed by adjusting the inclination direction of the blades 3), and then the two fixing plates 5 are brought close to each other by controlling the transmission assembly 7 until the two fixing plates 5 clamp all the blades 3. At this time, due to the clamping of the two fixing plates 5, each blade 3 will not be easily loosened, which can solve the problem of the airflow causing the blades 3 to vibrate and cause noise after the central air conditioner is started.

[0024] like Figure 1 , Figure 2 As shown, the transmission assembly 7 includes a groove 71, a groove 71 is provided on the inner left wall surface of the mounting frame 1, a servo motor 72 is fixedly installed inside the groove 71, a gear 73 is fixedly installed on the output end of the servo motor 72, and two slide grooves 75 are provided on the inner left wall surface of the mounting frame 1, a slide rod 76 is movably installed inside each slide groove 75, a rack 74 is fixedly installed on the side of each slide rod 76 close to the blade 3, the two racks 74 are meshed and connected with the gear 73, and the two fixed plates 5 are fixedly connected with the two racks 74 respectively. It should be noted that when the servo motor 72 is started, the gear 73 can be driven to reciprocate at a preset angle and speed, so that the two racks 74 respectively drive the two fixed plates 5 to approach or move away from each other, and each rack 74 drives the slide rod 76 connected to it to slide inside the corresponding slide groove 75 when moving.

[0025] like Figures 1 to 4 As shown, a strip hole 8 is provided on the side wall of each blade 3, a round rod 9 is provided inside the mounting frame 1, and the round rod 9 passes through the inside of all the strip holes 8. A driving assembly 10 for driving the round rod 9 to move up and down is provided on the right inner wall of the mounting frame 1. It should be noted that when all the blades 3 are in a parallel state, the driving assembly 10 is controlled to move the round rod 9 upward or downward, so that the round rod 9 contacts the inner wall of each strip hole 8, which can further prevent the blade 3 from shaking and generating noise.

[0026] like Figure 3 , Figure 4 As shown, the driving component 10 includes a rectangular groove 101, a rectangular groove 101 is opened on the inner right wall of the installation frame 1, a screw rod 103 is movably installed inside the rectangular groove 101, a handwheel 102 for driving the screw rod 103 to rotate is movably installed on the top of the installation frame 1, a movable block 104 is threadedly connected to the screw rod 103, and the round rod 9 is fixedly connected to the movable block 104. It should be noted that the handwheel 102 is rotated as needed, and the handwheel 102 synchronously drives the screw rod 103. The reciprocating rotation of the screw rod 103 can make the movable block 104 slide up and down inside the rectangular groove 101, and the movable block 104 can synchronously drive the round rod 9 to move when moving.

[0027] like Figure 4 As shown, a magnetic strip 11 is inlaid on the side wall of the round rod 9, and a magnetic block 12 is inlaid on the inner side wall of each bar hole 8. The magnetic strip 11 and the magnetic block 12 are attracted to each other. It should be noted that when the round rod 9 contacts the inner wall of each bar hole 8, and each magnetic block 12 contacts the magnetic strip 11, the magnetic strip 11 and the magnetic block 12 can be attracted to each other, further preventing the blade 3 from shaking and generating noise.

[0028] like Figures 1 to 3 As shown, buffer pads 13 are fixedly installed on the four outer walls of the installation frame 1, and circular holes 14 are opened on the buffer pads 13 on the front and rear sides corresponding to the position of each fixing hole 2. It should be noted that the main purpose of the buffer pads 13 is to act as a buffer between the installation frame 1 and the wall to avoid noise caused by collision between the installation frame 1 and the wall.

[0029] In summary:

[0030] First, place the installation frame 1 to the designated installation position, and then pass the expansion bolts through the fixing holes 2 and thread them into the wall, so as to fix the installation frame 1. To prevent the airflow from causing the blades 3 to vibrate after the central air conditioner is started, the inclination direction of the blades 3 can be adjusted (the air outlet direction of the air conditioner can be changed by adjusting the inclination direction of the blades 3). Then, the two fixing plates 5 can be brought closer to each other by controlling the transmission assembly 7 until all the blades 3 are clamped by the two fixing plates 5. At this time, due to the clamping of the two fixing plates 5, each blade 3 will not loosen easily, thereby solving the problem of the airflow causing the blades 3 to vibrate and cause noise after the central air conditioner is started.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A device for reducing the noise of a central air conditioner outlet, comprising a mounting frame (1), characterized in that: The left and right side walls of the installation frame (1) are provided with two fixing holes (2), a plurality of blades (3) are arranged inside the installation frame (1) and are distributed at equal intervals, a rotating shaft (4) is fixedly installed at both ends of each blade (3), and the end of each rotating shaft (4) away from the blade (3) is rotatably connected to the adjacent inner wall surface of the installation frame (1), and the front and rear sides of the interior of the installation frame (1) are respectively provided with fixing plates (5), and the sides of the two fixing plates (5) close to each other are provided with through holes (6) corresponding to the positions of each blade (3), and each rotating shaft (4) passes through the inside of the adjacent through holes (6), and the left wall surface inside the installation frame (1) is provided with a transmission component (7) for driving the two fixing plates (5) to move closer to or away from each other.

2. A device for reducing the noise of a central air conditioner outlet according to claim 1, characterized in that: The transmission assembly (7) comprises a groove (71), the inner left wall surface of the installation frame (1) is provided with the groove (71), a servo motor (72) is fixedly installed inside the groove (71), a gear (73) is fixedly installed at the output end of the servo motor (72), two slide grooves (75) are provided on the inner left wall surface of the installation frame (1), a slide rod (76) is movably installed inside each slide groove (75), a rack (74) is fixedly installed on a side of each slide rod (76) close to the blade (3), the two racks (74) are meshed and connected with the gear (73), and the two fixing plates (5) are fixedly connected with the two racks (74) respectively.

3. The device for reducing the noise of the central air conditioner outlet according to claim 1, characterized in that: A strip hole (8) is provided on the side wall surface of each blade (3); a round rod (9) is provided inside the installation frame (1); the round rod (9) passes through the inside of all the strip holes (8); and a driving component (10) for driving the round rod (9) to move up and down is provided on the right wall surface inside the installation frame (1).

4. The device for reducing the noise of the central air conditioner outlet according to claim 3, characterized in that: The driving assembly (10) comprises a rectangular groove (101), the inner right wall surface of the installation frame (1) is provided with a rectangular groove (101), a screw rod (103) is movably installed inside the rectangular groove (101), a hand wheel (102) for driving the screw rod (103) to rotate is movably installed on the top of the installation frame (1), a movable block (104) is threadedly connected to the screw rod (103), and the round rod (9) is fixedly connected to the movable block (104).

5. The device for reducing the noise of the central air conditioner outlet according to claim 3, characterized in that: A magnetic attraction strip (11) is inlaid on the side wall surface of the round rod (9), and a magnetic attraction block (12) is inlaid on the inner side wall surface of each bar-shaped hole (8), and the magnetic attraction strip (11) and the magnetic attraction block (12) are mutually attracted.

6. The device for reducing the noise of the central air conditioner outlet according to claim 1, characterized in that: Buffer pads (13) are fixedly mounted on the four outer wall surfaces of the installation frame (1), and circular holes (14) are provided on the buffer pads (13) on the front and rear sides corresponding to the positions of each fixing hole (2).

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