Dustproof transmission part, transmission mechanism and air conditioner

Abstract

The utility model discloses a dustproof transmission piece, transmission mechanism and air conditioner, dustproof transmission piece includes transmission piece body, transmission piece includes transmission arm, transmission plate and structural plate, transmission arm and structural plate join, transmission plate is in the arc shape, transmission arm and structural plate join each other, transmission plate and structural plate join each other, transmission arm and structural plate join each other. One end of the transmission plate is connected with the end, away from the transmission arm, of the structural plate, the other end of the transmission plate is connected to the middle of the transmission arm, a fan-shaped through groove is formed among the transmission arm, the transmission plate and the structural plate, and teeth are arranged on the side face, facing the fan-shaped through groove, of the transmission plate. Due to the fact that the closed fan-shaped through groove is formed among the transmission arm, the transmission plate and the structural plate, external dust can be effectively prevented from entering a tooth area inside a transmission part, the influence of the dust on the transmission part is reduced, and the risks of abrasion and jamming are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a dustproof transmission component, a transmission mechanism and an air conditioner. Background Art

[0002] In modern homes, air conditioners are essential for regulating indoor temperature. Their performance and user experience are directly linked to consumer satisfaction. With technological advancements and rising demands for a better quality of life, air conditioner designs are increasingly becoming more intelligent, user-friendly, and efficient. Preventing direct cold airflow from reaching the human body is a key consideration in air conditioner design, particularly for the elderly, children, and the infirm, as such exposure can easily cause discomfort.

[0003] In order to prevent direct blowing, other air ducts will be set up to guide the airflow to be released in a direction that is not directly blowing on people. Correspondingly, in order to facilitate the adjustment of the air duct, a corresponding transmission structure will be set to adjust the air duct. In order to prevent the transmission structure from being exposed to the outside, and the limited internal assembly space of the air conditioner, it is inevitable that part of the transmission structure will be located inside the air duct. Inside the air duct, the gears and other moving parts in the transmission structure will be directly exposed to the airflow. Since the air conditioner will inhale a large amount of air during operation, this air often carries various dust particles. When these dust particles enter the air duct with the air flow and contact the transmission structure, they will gradually accumulate at the meshing point of the gears. As the dust accumulates, the wear between the transmission structures will increase, and even jamming may occur. Utility Model Content

[0004] In order to overcome at least one of the defects of the above-mentioned prior art, the present invention provides a dust-proof transmission member, a transmission mechanism and an air conditioner, which can solve the problem of dust accumulation in the transmission part of the transmission member located on the air outlet path of the air conditioner.

[0005] The technical solution adopted by the present invention to solve the problem is:

[0006] A dust-proof transmission component includes a transmission component body, the transmission component includes a transmission arm, a transmission plate and a structural plate, the transmission arm is connected to the structural plate, the transmission plate is arc-shaped, one end of the transmission plate is connected to the end of the structural plate away from the transmission arm, and the other end is connected to the middle part of the transmission arm, a fan-shaped through groove is formed between the transmission arm, the transmission plate and the structural plate, and the side of the transmission plate facing the fan-shaped through groove is provided with teeth.

[0007] By adopting the above solution, a closed fan-shaped groove is formed between the transmission arm, the transmission plate and the structural plate, which can effectively prevent external dust from entering the tooth area inside the transmission part, reducing the impact of dust on the transmission parts and reducing the risk of wear and jamming.

[0008] Furthermore, the center of the arc-shaped transmission plate is located on the transmission arm, and the transmission arm is provided with a first assembly hole at the center of the transmission plate. The first assembly hole is rotatably connected to the external carrier so that the transmission member body rotates around the first assembly hole.

[0009] By adopting the above solution, since the center of the transmission plate is located on the transmission arm, it can be ensured that when the transmission member rotates, the transmission plate can perform precise rotational motion around a fixed center point, thereby improving the accuracy and reliability of the transmission.

[0010] Furthermore, the center of the arc-shaped transmission plate is located on a side of the transmission arm close to the structural plate.

[0011] With this solution, because the center of the transmission plate is located on the side of the transmission arm closest to the structural plate, the other end of the transmission arm can produce a greater linear displacement as the transmission arm rotates around this center. This means that for the same rotation angle, the end of the transmission arm can move a greater distance. This greater displacement distance allows for more efficient transmission of the actuator's motion, enabling the transmission mechanism to respond more sensitively to the actuator's commands and improving overall transmission efficiency.

[0012] Furthermore, the transmission arm, the transmission plate and the structural plate are integrally formed.

[0013] While the aforementioned solution reduces the structural strength of the transmission body due to the fan-shaped through-slot in the middle, the integrated structure distributes stress more evenly, avoiding stress concentration at the connection points. This effectively strengthens the fan-shaped through-slot area, thereby improving overall tensile and bending resistance.

[0014] The utility model also provides a transmission mechanism, comprising:

[0015] a driver having an output gear;

[0016] The dustproof transmission member mentioned above, wherein the end of the transmission arm away from the structural plate is provided with a first adapter shaft;

[0017] A transfer connecting rod, wherein the transfer connecting rod is provided with a first transfer hole, the first transfer hole is rotatably connected to the first transfer shaft, and the transfer connecting rod is fixedly connected to the panel;

[0018] The output gear is engaged with the teeth of the structural plate, so that the output gear drives the transmission arm to swing back and forth around the first assembly hole through the transmission plate, and the transmission arm drives the transfer link and the panel to move up and down and forward and backward in an arc trajectory.

[0019] By adopting the above solution, the panel is driven by a simple connecting rod structure. Compared with the traditional lifting mechanism, the space occupied by the air conditioner is greatly reduced. The transmission mechanism is conducive to the miniaturization design of the air conditioner as a whole. In addition, the transmission mechanism structure is relatively simple, with fewer mechanical parts, which reduces the complexity of manufacturing and assembly. More importantly, during the movement of the panel, it is necessary to move upward to open the air outlet at the bottom of the air conditioner for air discharge, and it is also necessary for the panel to move forward relative to the air conditioner body so that a gap is left between the panel and the air conditioner body to form an air duct, thereby achieving the effect of multi-faceted air discharge and anti-direct blowing. In addition, the second connecting rod, driven by the first connecting rod, has an arc-shaped motion trajectory. In the arc-shaped motion, the upward and forward motion steps are completed simultaneously. Compared with the two-stage motion transmission mechanism in the prior art that first moves forward and then moves upward, the transmission mechanism structure is simpler, further reducing the overall volume of the transmission mechanism. In addition, the transmission plate of the dustproof transmission part is engaged with the output gear, that is, the transmission plate is inscribed in the output gear, thereby preventing the dustproof transmission part from extending into the air duct, thereby avoiding the problem of dust accumulation at the meshing point between the teeth and the output gear due to airflow.

[0020] Furthermore, it also includes a parallel link, one end of the parallel link is provided with a second assembly hole, the other end is provided with a second transfer shaft, the transfer link is provided with a second transfer hole, the second transfer shaft is rotatably connected to the second transfer hole, the second assembly hole is rotatably connected to the external carrier, the parallel link is arranged parallel to the transmission arm, so that when the transmission arm drives the transfer link to move, the parallel link moves synchronously with the transmission arm around the second assembly hole.

[0021] By adopting this solution, the parallel links are placed parallel to the transmission arms, providing dual support and enhancing the structural strength and rigidity of the entire transmission system. Especially when the dust-proof transmission components are equipped with fan-shaped through-slots, the parallel links can share some of the force, reducing the risk of fracture at the transmission arms, transmission plates, and structural plates. Furthermore, the addition of the parallel links ensures a more even distribution of stress within the transmission system, reducing the potential for localized stress concentration and improving the overall durability of the system.

[0022] Furthermore, it also includes a mounting seat, the mounting seat is provided with a first assembly shaft and a second assembly shaft, the first assembly hole is rotatably connected to the first assembly shaft, and the second assembly hole is rotatably connected to the second assembly shaft.

[0023] By adopting the above solution, the design of the mounting base enables the transmission mechanism to be integrated as an independent module, which facilitates the design and installation of air outlet components such as air conditioners of different models.

[0024] Furthermore, the transmission arm is provided with an arc-shaped protrusion along the circumference of the first assembly hole on a side facing the fan-shaped through groove.

[0025] By adopting this solution, the curved protrusion increases the local strength of the transmission arm around the first mounting hole, effectively dispersing and absorbing stress, reducing stress concentration, and improving the transmission arm's bending resistance and fatigue resistance. The structural design of the curved protrusion reduces deformation of the transmission arm under stress, ensuring that the transmission arm maintains stable shape and performance over long-term use. Furthermore, the design of the curved protrusion provides the necessary space for the first mounting hole to offset relative to the first adapter shaft.

[0026] Furthermore, when the transmission arm is in an initial state, the angle between the line connecting the axis of the first adapter shaft and the center of the first assembly hole and the vertical line is 0 to 10 degrees.

[0027] Compared to a position located vertically below the center of the second assembly hole, this structure reduces the arm at the force output end of the transmission arm, thereby reducing the output torque. This means the torque the driver must overcome during startup is reduced, reducing the burden on the driver and extending its service life. Furthermore, the reduced startup torque allows for the use of a lower-power, smaller driver, further saving installation space.

[0028] The utility model also provides an air conditioner, comprising the above-mentioned dust-proof transmission component, or the above-mentioned transmission mechanism.

[0029] In summary, the dust-proof transmission member provided by the present invention has the following technical effects:

[0030] Since a closed fan-shaped groove is formed between the transmission arm, the transmission plate and the structural plate, this can effectively prevent external dust from entering the tooth area inside the transmission part, reducing the impact of dust on the transmission parts and reducing the risk of wear and jamming.

[0031] The transmission mechanism provided by the utility model has the following technical effects:

[0032] The panel is driven by a simple connecting rod structure, significantly reducing the space occupied by the air conditioner compared to traditional lifting mechanisms. The transmission mechanism facilitates the overall miniaturization of the air conditioner. Furthermore, the relatively simple structure and minimal mechanical components reduce manufacturing and assembly complexity. More importantly, during panel movement, the panel must not only move upward to open the air outlet at the bottom of the air conditioner for air discharge, but also move forward relative to the air conditioner body, creating a gap between the panel and the air conditioner body to form an air duct, thereby achieving multi-directional air discharge and preventing direct blowback. Furthermore, the second connecting rod, driven by the first connecting rod, moves in an arc-shaped trajectory. During this arc-shaped motion, the upward and forward motion steps are simultaneously completed. Compared to conventional transmission mechanisms that first move forward and then upward in a two-step motion, this transmission mechanism is simpler and further reduces its overall size. Furthermore, the transmission plate of the dustproof transmission member meshes with the output gear, i.e., the transmission plate and the output gear engage in an inward meshing manner, preventing the dustproof transmission member from extending into the air duct, thereby avoiding dust accumulation at the meshing point between the teeth and the output gear caused by airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the three-dimensional structure of the transmission part body of the present utility model;

[0034] Figure 2 This is a schematic diagram of the exploded structure of the transmission structure of the utility model;

[0035] Figure 3 This is a schematic diagram of the state structure of the transmission structure connection panel of the utility model;

[0036] Figure 4 This is a schematic diagram of the positional relationship between the first assembly hole and the first adapter shaft of the transmission component body of the present invention.

[0037] Among them, the meanings of the figure marks are as follows: 1. Transmission body; 11. Transmission arm; 111. First assembly hole; 112. First transfer shaft; 113. Arc-shaped protrusion; 12. Transmission plate; 121. Tooth; 13. Structural plate; 14. Fan-shaped through groove; 2. Driver; 21. Output gear; 3. Transfer link; 31. First transfer hole; 32. Second transfer hole; 4. Parallel link; 41. Second assembly hole; 42. Second transfer shaft; 5. Mounting seat; 51. First assembly shaft; 52. Second assembly shaft; 6. Panel. DETAILED DESCRIPTION

[0038] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0039] In order to facilitate the understanding of the embodiments of the present invention, the following will be further explained with reference to specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. 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 direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0042] See Figure 1-Figure 4 The utility model discloses a dust-proof transmission component, including a transmission component body 1, the transmission component including a transmission arm 11, a transmission plate 12 and a structural plate 13, the transmission arm 11 is connected to the structural plate 13, the transmission plate 12 is arc-shaped, one end of the transmission plate 12 is connected to the end of the structural plate 13 away from the transmission arm 11, and the other end is connected to the middle part of the transmission arm 11, a fan-shaped through groove 14 is formed between the transmission arm 11, the transmission plate 12 and the structural plate 13, and teeth 121 are provided on the side of the transmission plate 12 facing the fan-shaped through groove 14.

[0043] Specifically, the transmission arm 11 is used to connect to the external component that needs to be transmitted. The transmission arm 11 is connected to the structural plate 13. The transmission plate 12 is arc-shaped. One end of the transmission plate 12 is connected to the end of the structural plate 13 away from the transmission arm 11, and the other end is connected to the middle of the transmission arm 11. A fan-shaped groove 14 is formed between the transmission arm 11, the transmission plate 12 and the structural plate 13. The side of the transmission plate 12 facing the fan-shaped groove 14 is provided with teeth 121. The teeth 121 are used to transmit and connect other output gears 21, thereby driving the transmission plate 12 to move along the arc of the transmission plate 12, and then driving the transmission arm 11 to swing. The two ends of the structural plate 13 are respectively connected to the transmission arm 11 and the transmission plate 12, which play the role of pulling the transmission arm 11 and the transmission plate 12 together to prevent the transmission component body 1 from deformation and other phenomena.

[0044] See Figure 1 and Figure 2 As shown, in some embodiments, the center of the arc-shaped transmission plate 12 is located on the transmission arm 11, and the transmission arm 11 is provided with a first assembly hole 111 at the center of the transmission plate 12. The first assembly hole 111 is rotatably connected to the external carrier so that the transmission member body 1 rotates around the first assembly hole 111.

[0045] Specifically, since the center of the transmission plate 12 is located on the transmission arm 11, it can be ensured that when the transmission member rotates, the transmission plate 12 can perform precise rotational motion around a fixed center point, thereby improving the accuracy and reliability of the transmission.

[0046] See Figure 1 and Figure 2 As shown, further, the center of the arc-shaped transmission plate 12 is located on the side of the transmission arm 11 close to the structural plate 13.

[0047] By adopting this solution, because the center of the transmission plate 12 is located on the side of the transmission arm 11 closest to the structural plate 13, as the transmission arm 11 rotates about this center, the other end of the transmission arm 11 can produce a greater linear displacement. This means that at the same rotation angle, the end of the transmission arm 11 can move a greater distance. This greater displacement distance can more effectively transmit the movement of the driver 2, allowing the transmission mechanism to respond more sensitively to the driver 2's commands, thereby improving overall transmission efficiency.

[0048] See Figure 1 As shown, in some embodiments, the transmission arm 11 , the transmission plate 12 and the structural plate 13 are integrally formed.

[0049] Specifically, the fan-shaped through-slot 14 in the middle of the transmission body 1 reduces the structural strength of the transmission body 1. The one-piece structure distributes stress more evenly, avoiding stress concentration at connection points and effectively strengthening the fan-shaped through-slot 14 area, thereby improving the overall tensile and bending resistance.

[0050] See Figure 2-Figure 3 As shown, the present invention also provides a transmission mechanism, including a driver 2, a transfer link 3 and the above-mentioned dust-proof transmission component, wherein the driver 2 has an output gear 21. A first transfer shaft 112 is provided at one end of the transmission arm 11 away from the structural plate 13. The transfer link 3 is provided with a first transfer hole 31, which is rotatably connected to the first transfer shaft 112, and the transfer link 3 is fixedly connected to the panel 6. The output gear 21 is engaged with the teeth 121 of the structural plate 13, so that the output gear 21 drives the transmission arm 11 to swing back and forth around the first assembly hole 111 through the transmission plate 12, and the transmission arm 11 drives the transfer link 3 and the panel 6 to move up and down and forward and backward in an arc-shaped trajectory.

[0051] Specifically, the output gear 21 of the driver 2 meshes with the teeth 121 on the structural plate 13 of the dustproof transmission element. When the driver 2 is in operation, the output gear 21 rotates, and the meshing of the teeth 121 transmits the rotational motion to the transmission plate 12. Driven by the driver 2, the transmission plate 12 rotates about the first assembly hole 111. This rotation drives the transmission arm 11 to swing back and forth about the first assembly hole 111. Driven by the transmission plate 12, the transmission arm 11 swings back and forth about the first assembly hole 111. A first transfer shaft 112 is provided at the other end of the transmission arm 11, which is rotatably connected to the first transfer hole 31 of the transfer link 3. The reciprocating swing of the transmission arm 11 is transmitted to the transfer link 3 via the first transfer shaft 112. Driven by the transmission arm 11, the transfer link 3 moves up and down, forward and backward along an arc. The transfer link 3 is fixedly connected to the panel 6, so the panel 6 also moves up and down, forward and backward in response to the movement of the transfer link 3.

[0052] See Figure 2-Figure 3 As shown, in some embodiments, the transmission mechanism further includes a parallel link 4, a second assembly hole 41 is provided at one end of the parallel link 4, and a second transfer shaft 42 is provided at the other end, the transfer link 3 is provided with a second transfer hole 32, the second transfer shaft 42 is rotatably connected to the second transfer hole 32, the second assembly hole 41 is rotatably connected to the external carrier, and the parallel link 4 is arranged parallel to the transmission arm 11, so that when the transmission arm 11 drives the transfer link 3 to move, the parallel link 4 moves synchronously with the transmission arm 11 around the second assembly hole 41.

[0053] Specifically, parallel linkage 4 is arranged parallel to transmission arm 11, providing dual support and enhancing the structural strength and rigidity of the entire transmission system. Especially when the dust-proof transmission member is equipped with fan-shaped through-slots 14, parallel linkage 4 can share some of the force, reducing the risk of fracture at transmission arm 11, transmission plate 12, and structural plate 13. Furthermore, the addition of parallel linkage 4 ensures a more even distribution of stress within the transmission system, reducing the possibility of localized stress concentration and improving the overall durability of the system.

[0054] See Figure 2-Figure 3 As shown, in some embodiments, the transmission mechanism further includes a mounting seat 5, which is provided with a first assembly shaft 51 and a second assembly shaft 52, the first assembly hole 111 is rotatably connected to the first assembly shaft 51, and the second assembly hole 41 is rotatably connected to the second assembly shaft 52.

[0055] Specifically, the design of the mounting base 5 enables the transmission mechanism to be integrated as an independent module, which facilitates the design and installation of air outlet components such as air conditioners of different models.

[0056] See Figure 1-Figure 4 As shown, in some embodiments, the transmission arm 11 is provided with an arc-shaped protrusion 113 along the circumference of the first assembly hole 111 on the side facing the fan-shaped through groove 14 .

[0057] Specifically, the arcuate protrusion 113 increases the local strength of the transmission arm 11 around the first assembly hole 111, effectively dispersing and absorbing stress, reducing stress concentration, and improving the bending resistance and fatigue resistance of the transmission arm 11. The structural design of the arcuate protrusion 113 reduces deformation of the transmission arm 11 under stress, ensuring that the transmission arm 11 maintains a stable shape and performance during long-term use. Furthermore, the design of the arcuate protrusion 113 provides the necessary space for the first assembly hole 111 to deviate relative to the first adapter shaft 112.

[0058] See Figure 4 As shown, further, when the transmission arm 11 is in the initial state, the angle between the line between the axis of the first adapter shaft 112 and the center of the first assembly hole 111 and the vertical line is 0 to 10 degrees.

[0059] Specifically, the angle between the line connecting the axis of the first adapter shaft 112 and the center of the first assembly hole 111 and the vertical line is 0 to 10 degrees. Compared to being located vertically below the center of the second assembly hole 41, this structure reduces the moment arm at the force output end of the transmission arm 11, thereby correspondingly reducing the output torque. This means that the torque that the driver 2 needs to overcome during startup is reduced, reducing the burden on the driver 2 and thereby extending the service life of the driver 2. Furthermore, due to the reduced startup torque, a lower-power, smaller driver 2 can be selected, further saving installation space.

[0060] The utility model also provides an air conditioner, comprising the above-mentioned dust-proof transmission component, or the above-mentioned transmission mechanism.

[0061] When an air conditioner utilizes the dust-proof transmission element, the fan-shaped through-slot 14 and the curved transmission plate 12 reduce the chance of dust entering the transmission element, thereby improving dust prevention. This reduces relative movement between internal components, reduces the accumulation of dust and dirt, keeps the transmission element clean, and extends its service life.

[0062] When the air conditioner adopts the above-mentioned transmission mechanism, in addition to the above-mentioned beneficial effect of reducing the entry of dust into the interior of the transmission parts, the output gear 21 engages with the teeth 121 of the structural plate 13, ensuring that the movement of the driver 2 can be accurately transmitted to the transmission arm 11, thereby driving the transfer link 3 and the panel 6 to perform precise movement.

[0063] The parallel link 4 is arranged parallel to the transmission arm 11 and is connected to the transfer link 3 through the second transfer shaft 42 and the second transfer hole 32, ensuring that when the transmission arm 11 drives the transfer link 3 to move, the parallel link 4 can move synchronously with the transmission arm 11, thereby improving the accuracy and stability of the movement.

[0064] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A dustproof transmission component, characterized in that: It includes a transmission member body, which includes a transmission arm, a transmission plate and a structural plate. The transmission arm is connected to the structural plate. The transmission plate is arc-shaped. One end of the transmission plate is connected to the end of the structural plate away from the transmission arm, and the other end is connected to the middle of the transmission arm. A fan-shaped groove is formed between the transmission arm, the transmission plate and the structural plate, and teeth are provided on the side of the transmission plate facing the fan-shaped groove.

2. A dustproof transmission component according to claim 1, characterized in that: The center of the arc-shaped transmission plate is located on the transmission arm. The transmission arm is provided with a first assembly hole at the center of the transmission plate. The first assembly hole is rotatably connected to the external carrier so that the transmission member body rotates around the first assembly hole.

3. A dustproof transmission component according to claim 2, characterized in that: The center of the arc-shaped transmission plate is located on the side of the transmission arm close to the structural plate.

4. A dustproof transmission component according to any one of claims 1 to 3, characterized in that: The transmission arm, the transmission plate and the structural plate are integrally formed.

5. A transmission mechanism, characterized in that: include: a driver having an output gear; The dustproof transmission member according to any one of claims 2 to 3, wherein a first adapter shaft is provided at one end of the transmission arm away from the structural plate; A transfer connecting rod, wherein the transfer connecting rod is provided with a first transfer hole, the first transfer hole is rotatably connected to the first transfer shaft, and the transfer connecting rod is fixedly connected to the panel; The output gear is engaged with the teeth of the structural plate, so that the output gear drives the transmission arm to swing back and forth around the first assembly hole through the transmission plate, and the transmission arm drives the transfer link and the panel to move up and down and forward and backward in an arc trajectory.

6. A transmission mechanism according to claim 5, characterized in that: It also includes a parallel link, one end of the parallel link is provided with a second assembly hole, the other end is provided with a second transfer shaft, the transfer link is provided with a second transfer hole, the second transfer shaft is rotatably connected to the second transfer hole, the second assembly hole is rotatably connected to an external carrier, the parallel link is arranged parallel to the transmission arm, so that when the transmission arm drives the transfer link to move, the parallel link moves synchronously with the transmission arm around the second assembly hole.

7. A transmission mechanism according to claim 6, characterized in that: The mounting base is further included. The mounting base is provided with a first assembly shaft and a second assembly shaft. The first assembly hole is rotatably connected to the first assembly shaft, and the second assembly hole is rotatably connected to the second assembly shaft.

8. A transmission mechanism according to any one of claims 5 to 7, characterized in that: The transmission arm is provided with an arc-shaped protrusion along the circumference of the first assembly hole on a side facing the fan-shaped through groove.

9. A transmission mechanism according to any one of claims 5 to 7, characterized in that: When the transmission arm is in an initial state, the angle between the line connecting the axis of the first adapter shaft and the center of the first assembly hole and the vertical line is 0 to 10 degrees.

10. An air conditioner, characterized in that: It comprises the dustproof transmission part according to any one of claims 1 to 4, or the transmission mechanism according to any one of claims 5 to 9.

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