Continuously variable speed fans and air conditioners

Abstract

The present invention relates to the technical field of air conditioning, and provides a continuously variable speed fan and air conditioner. The continuously variable speed fan includes a cone wheel assembly, a conveyor belt, fan blades, and an adjustment assembly. The cone wheel assembly includes a movable cone wheel and a rotating shaft located at the center of the movable cone wheel. The movable cone wheel is slidably connected to the rotating shaft, and two movable cone wheels are arranged in parallel. The conveyor belt is sleeved on the outside of the two movable cone wheels and is transmission-connected to the two movable cone wheels. Two fan blades are connected to the two rotating shafts in a one-to-one correspondence. Two adjustment assemblies are transmission-connected to the two movable cone wheels in a one-to-one correspondence. The adjustment assembly switches the radius of the movable cone wheel between a maximum radius and a minimum radius, and the two adjustment assemblies move in opposite directions synchronously. The two fan blades correspond to the upper and lower air outlets of the air conditioner, respectively, so that one air outlet can efficiently discharge air and the other air outlet can efficiently exchange heat, which not only ensures efficient heat exchange in the room, but also prevents overcooled air from blowing directly on the user's head, thereby improving the user's comfort.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a stepless speed-changing fan and an air conditioner. Background Art

[0002] Air conditioning refers to equipment that uses artificial means to regulate and control parameters such as temperature, humidity, and flow rate of the ambient air within a building or structure. It generally consists of several major components, including cooling / heating equipment, cold and hot medium distribution systems, terminal devices, and other auxiliary equipment, primarily including indoor and outdoor units. Household cabinet air conditioner indoor units are mostly cross-flow fans, with consistent wind speeds at the upper and lower air outlets. However, as people's pursuit of quality of life continues to improve, air conditioners are no longer just cooling and heating devices, and new applications are emerging. In the scorching summer, it is necessary to quickly lower the indoor temperature, but high-speed cold air blowing directly at the head can cause discomfort. Using a deflector to block the air outlet prevents the user from feeling the cool air. Using medium or low wind speeds results in too slow a cooling effect, making it impossible to achieve both temperature regulation and efficient heat exchange. Summary of the Invention

[0003] The present invention aims to address at least one of the technical problems existing in the related art. To this end, the present invention proposes a continuously variable speed fan. Two sets of cone-wheel assemblies are each connected to a fan. Adjusting the radius of the movable cone wheels of the two cone-wheel assemblies enables the two fans to rotate at differential speeds. Different air outlets deliver different air speeds, ensuring efficient indoor heat exchange while preventing overcooled air from blowing directly onto the user's head, thereby improving user comfort.

[0004] An embodiment of the present invention further provides an air conditioner.

[0005] According to a first aspect of the present invention, a continuously variable speed fan is provided, comprising:

[0006] Two sets of cone wheel assemblies, each of which includes a movable cone wheel and a rotating shaft located at the center of the movable cone wheel, the movable cone wheel being slidably connected to the rotating shaft, and the two sets of movable cone wheels being arranged in parallel;

[0007] A conveyor belt is sleeved on the outside of the two movable conical wheels and is transmission-connected to the two movable conical wheels;

[0008] Two fan blades, the two fan blades are connected to the two rotating shafts in a one-to-one correspondence;

[0009] Two adjustment components are connected to the two movable cone wheels in a one-to-one transmission manner. The adjustment components switch the radius of the movable cone wheel between a maximum radius and a minimum radius, and the two adjustment components move in opposite directions synchronously.

[0010] According to one embodiment of the present invention, the movable cone wheel includes a plurality of sliders, and the cone wheel assembly further includes:

[0011] A fixed bevel wheel, wherein the center of the fixed bevel wheel is fixedly connected to the rotating shaft, a plurality of sliding grooves are evenly formed on the fixed bevel wheel, the plurality of sliding grooves extend along the radial direction of the fixed bevel wheel, and the plurality of sliding blocks are disposed in the plurality of sliding grooves in a one-to-one correspondence;

[0012] A sleeve is sleeved on the outside of the rotating shaft and is transmission-connected to the plurality of sliders. The sleeve is connected to the adjustment component, and the adjustment component enables the slider to switch between one end away from the rotating shaft and one end close to the rotating shaft in the sliding groove.

[0013] According to one embodiment of the present invention, the fixed bevel wheel includes a first wheel disc and a second wheel disc arranged in parallel, both the first wheel disc and the second wheel disc are formed with the sliding groove, and the sliding block is arranged between the first wheel disc and the second wheel disc and is slidably connected to the sliding grooves on both sides.

[0014] According to an embodiment of the present invention, positioning grooves are formed on both sides of the sliding block, and the first wheel disc and the second wheel disc are embedded in the positioning grooves corresponding to the edges of the sliding grooves.

[0015] According to one embodiment of the present invention, a plurality of fixing members are provided on a side of the first wheel disc close to the sleeve, and at least one fixing member is provided on both sides of the sliding groove;

[0016] The fixing member is hinged to the swing member through a pin, and the swing member includes a first swing arm and a second swing arm with an included angle, the end of the first swing arm away from the pin is hinged to the sleeve, and the end of the second swing arm away from the pin is hinged to the slider.

[0017] According to one embodiment of the present invention, the sliding groove extends to the edges of the first wheel disc and the second wheel disc and is connected to the outside, and an anti-slip component is provided at the notch of the sliding groove.

[0018] According to an embodiment of the present invention, a friction portion is formed on a side of the sliding block facing away from the rotation axis.

[0019] According to an embodiment of the present invention, a plurality of heat dissipation holes are formed on both the first wheel disc and the second wheel disc.

[0020] According to one embodiment of the present invention, the adjustment assembly includes a hydraulically driven telescopic device or a servo motor driven telescopic device.

[0021] An air conditioner according to an embodiment of a second aspect of the present invention includes the stepless speed-variable fan provided by an embodiment of the first aspect of the present invention.

[0022] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0023] According to the first aspect of the present invention, a continuously variable speed fan is provided, comprising a cone wheel assembly, a conveyor belt, a fan blade, and an adjustment assembly; the cone wheel assembly comprises a movable cone wheel and a rotating shaft located at the center of the movable cone wheel, the movable cone wheel is slidably connected to the rotating shaft, and the two movable cone wheels are arranged in parallel; the conveyor belt is sleeved on the outside of the two movable cone wheels and is transmission-connected to the two movable cone wheels; the two fan blades are connected to the two rotating shafts in a one-to-one correspondence, and the two adjustment assemblies are transmission-connected to the two movable cone wheels in a one-to-one correspondence, the adjustment assembly switches the radius of the movable cone wheel between a maximum radius and a minimum radius, and the two adjustment assemblies move in opposite directions synchronously. When the continuously variable speed fan is working, the two adjustment assemblies move in opposite directions synchronously, so that the radius of one movable cone wheel increases and the radius of the other movable cone wheel decreases synchronously. The two movable cone wheels are connected by a conveyor belt. When the linear velocities of the two movable cone wheels remain consistent, the angular velocities of the two rotating shafts will form a difference, thereby causing the two fan blades to move differentially. The two fan blades correspond to the upper and lower air outlets of the air conditioner respectively, which can make one air outlet efficiently blow air and the other air outlet efficiently exchange heat, which not only ensures efficient heat exchange in the room, but also avoids over-cooled air blowing directly on the user's head, thereby improving the user's comfort.

[0024] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 is a perspective view of a continuously variable speed fan provided by an embodiment of the present invention;

[0027] Figure 2 This is a front view of a continuously variable speed fan provided by an embodiment of the present invention;

[0028] Figure 3 is a rear view of a continuously variable speed fan provided by an embodiment of the present invention;

[0029] Figure 4 is a perspective view of a movable cone wheel of a continuously variable speed fan provided by an embodiment of the present invention;

[0030] Figure 5 It is a three-dimensional diagram of a fixed cone wheel of a continuously variable speed fan provided by an embodiment of the present invention.

[0031] Reference numerals:

[0032] 100, cone wheel assembly; 102, movable cone wheel; 104, slider; 106, friction part; 108, positioning groove;

[0033] 110, rotating shaft;

[0034] 120, fixed cone wheel; 122, slide; 124, first wheel disc; 126, second wheel disc; 128, fixed member; 130, swing member; 132, first swing arm; 134, second swing arm; 136, pin; 138, anti-slip member; 139, heat dissipation hole;

[0035] 140, sleeve;

[0036] 200. Conveyor belt. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions, and advantages of the invention more clear, the technical solutions of the invention will be clearly described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the invention, not all of them. Based on the embodiments of the invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the invention.

[0038] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of 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 operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0039] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on the specific circumstances.

[0040] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0041] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0042] On hot summer days, it's necessary to quickly lower the indoor temperature. However, high-speed cool air blowing directly at the head can cause discomfort. When deflectors block the air outlet, users can't feel the cool air, and at medium or low wind speeds, the indoor temperature drops too slowly.

[0043] According to the first embodiment of the present invention, a continuously variable speed fan is provided. Figures 1 to 5 , including a cone wheel assembly 100, a conveyor belt 200, fan blades and an adjustment assembly.

[0044] There are two sets of cone wheel assemblies 100, which are arranged side by side and are suitable for being fixed within the housing of the air conditioner. The cone wheel assembly 100 includes a movable cone wheel 102 and a rotating shaft 110. The rotating shaft 110 is disposed through the center of the movable cone wheel 102 and is slidably connected to the rotating shaft 110.

[0045] The two moving cone wheels 102 are arranged in parallel, and the conveyor belt 200 is sleeved on the outside of the two moving cone wheels 102 and is transmission-connected to the two moving cone wheels 102. Under the action of the conveyor belt 200, the linear speed of the two moving cone wheels 102 remains consistent.

[0046] It should be noted that one of the two groups of bevel gear assemblies 100 is a driving bevel gear assembly, and the other is a driven bevel gear assembly. The two rotating shafts 110 can be controlled to rotate at different speeds by a driving motor.

[0047] The two fan blades are connected to the two rotating shafts 110 in a one-to-one correspondence and can rotate synchronously with the rotating shafts 110. The two fan blades correspond to the upper and lower air outlets of the air conditioner respectively, and can blow the heat-exchanged air into the room.

[0048] There are two adjustment assemblies, which are connected to the two movable cone wheels 102 in a one-to-one transmission manner. The two adjustment assemblies move synchronously and in opposite directions. It should be noted that the adjustment assembly is suitable for switching the radius of the movable cone wheel 102 between a maximum radius and a minimum radius.

[0049] According to the continuously variable speed fan provided by an embodiment of the present invention, when the continuously variable speed fan is in operation, the two adjustment components move synchronously in opposite directions. The adjustment components can increase the radius of one movable cone wheel 102 and simultaneously decrease the radius of the other movable cone wheel 102. The two movable cone wheels 102 are connected by a conveyor belt 200. When the linear speeds of the two movable cone wheels 102 remain consistent, the angular velocities of the two rotating shafts 110 will form a difference, thereby causing the two fan blades to move at a differential speed. The two fan blades correspond to the upper and lower air outlets of the air conditioner, respectively, so that one air outlet can efficiently exhaust air and the other air outlet can efficiently exchange heat, which not only ensures efficient heat exchange in the room, but also improves the comfort of the user.

[0050] In cooling mode, increasing the radius of the movable conical wheel 102 corresponding to the upper air outlet and decreasing the radius of the movable conical wheel 102 corresponding to the lower air outlet can reduce the wind speed at the upper air outlet and increase the wind speed at the lower air outlet. The lower air outlet ensures efficient indoor cooling, while the wind speed at the upper air outlet is reduced, preventing it from directly blowing on the user's head, thereby improving user comfort.

[0051] In heating mode, the wind speed at the lower outlet is reduced and that at the upper outlet is increased. The lower outlet has a higher heat exchange efficiency, and hot air flows out from the lower outlet, forming a blanket-like distribution in the room. This upward flow of hot air facilitates the discharge of cold air, improves indoor temperature uniformity, and enhances user comfort.

[0052] In the present invention, the movement of the adjustment assembly can change the state of the movable cone wheel 102 , thereby changing the radius of the movable cone wheel 102 .

[0053] In some embodiments, the bevel gear assembly 100 includes a movable bevel gear 102 and a fixed bevel gear 120 adapted to the movable bevel gear 102 .

[0054] The movable cone wheel 102 includes a plurality of sliders 104 , which are distributed in a ring array. One side of the sliders 104 facing away from the center forms an outer rim of the movable cone wheel 102 .

[0055] The center of the fixed bevel gear 120 is fixedly connected to the rotating shaft 110. A plurality of sliding grooves 122 are formed on the fixed bevel gear 120. These grooves 122 extend along the radius of the fixed bevel gear 120, that is, radiate outward from the rotating shaft 110. The plurality of sliders 104 are disposed in a one-to-one correspondence within the plurality of sliding grooves 122. As the sliders 104 slide away from the rotating shaft 110, the radius of the movable bevel gear 102 increases.

[0056] The sleeve 140 is sleeved on the outside of the rotating shaft 110 and is transmission-connected to the multiple sliders 104 . When the sleeve 140 approaches or moves away from the fixed bevel wheel 120 , the multiple sliders 104 can simultaneously move away from or approach the rotating shaft 110 , thereby adjusting the radius of the movable bevel wheel 102 .

[0057] The adjusting component is connected to the sleeve 140. The adjusting component can be a hydraulically driven telescopic device or a servo motor driven telescopic device, etc. When the sliding resistance of the sleeve 140 is small, a telescopic device such as an electric slide driven by a servo motor is used to adjust the position of the sleeve 140. When the sliding resistance of the sleeve 140 is large, a hydraulically driven telescopic device is used to adjust the position of the sleeve 140.

[0058] The adjustment assembly can switch the slider 104 between an end away from the rotation axis 110 and an end close to the rotation axis 110 in the sliding slot 122 .

[0059] In some embodiments, the fixed bevel gear 120 includes a first wheel disc 124 and a second wheel disc 126, which are arranged side by side with a gap between them. Each of the first wheel disc 124 and the second wheel disc 126 has a slide groove 122 formed therein. The slider 104 is disposed between the first wheel disc 124 and the second wheel disc 126, and the slider 104 is slidably connected to the slide grooves 122 on both sides.

[0060] It can be understood that the first wheel disc 124 and the second wheel disc 126 can play a positioning and clamping effect, thereby improving the stability of the slider 104 during movement and reducing the noise of the continuously variable speed fan during movement.

[0061] Positioning grooves 108 are formed on both sides of the slider 104 . The first wheel disc 124 and the second wheel disc 126 are embedded in the positioning grooves 108 corresponding to the edges of the sliding groove 122 . The positioning grooves 108 improve the stability of the slider 104 during movement.

[0062] According to the continuously variable speed fan provided by the embodiment of the present invention, a plurality of fixing members 128 are provided on one side of the first wheel 124 close to the sleeve 140 . The fixing members 128 are provided corresponding to the slide slots 122 , and at least one fixing member 128 is provided on both sides of the slide slot 122 .

[0063] The swing member 130 is rotatably connected to the fixed member 128 via a pin 136. The swing member 130 includes a first swing arm 132 and a second swing arm 134. There is an angle between the first swing arm 132 and the second swing arm 134. The end of the first swing arm 132 facing away from the pin 136 is hinged to the sleeve 140, and the end of the second swing arm 134 facing away from the pin 136 is hinged to the slider 104.

[0064] It is understandable that when the sleeve 140 moves closer to or farther from the fixed cone wheel 120 , the swing member 130 forms a lever structure, which can drive the slider 104 closer to or farther from the rotating shaft 110 , thereby adjusting the radius of the movable cone wheel 100 .

[0065] In some embodiments, the slide groove 122 extends from one end of the rotating shaft 110 to the edge of the first wheel disc 124 and the second wheel disc 126 and is connected to the outside. The slide groove 122 forms a notch at the edge of the first wheel disc 124 and the second wheel disc 126, and an anti-slip member 138 is provided at the notch.

[0066] It is understood that the slot opening of the chute 122 is connected to the outside, facilitating the installation of the slider 104 within the chute 122 and facilitating the connection and assembly of the movable bevel gear 102 and the fixed bevel gear 120. The anti-slip member 138 provided at the slot opening prevents the slider 104 from escaping from the chute 122 during operation, thereby improving the safety and stability of the continuously variable speed fan.

[0067] It should be noted that the anti-slip member 138 can be detachably connected to the edges of the first wheel disc 124 and the second wheel disc 126 through a snap structure or a screw structure.

[0068] According to the continuously variable speed fan provided by the embodiment of the present invention, one of the two movable conical wheels 102 is a driving wheel, and the other is a driven wheel, and the two are connected by a conveyor belt 200, which is a steel conveyor belt.

[0069] In some embodiments, a friction portion 106 is formed on the side of the slider 104 away from the rotating shaft 110. The friction portion 106 can be a structure such as a protrusion, a groove or a vertical rib. The friction portion 106 increases the friction between the slider 104 and the conveyor belt 200, thereby improving the stability of the two sets of cone wheel assemblies 100 during rotation.

[0070] According to the continuously variable speed fan provided by the embodiment of the present invention, the temperature of the cone wheel assembly 100 will increase under the action of friction for a long time. Therefore, multiple heat dissipation holes 139 are provided on the first wheel disc 124 and the second wheel disc 126 to accelerate heat dissipation and help increase the service life of the cone wheel assembly 100.

[0071] An air conditioner according to an embodiment of a second aspect of the present invention includes the stepless speed-variable fan provided by an embodiment of the first aspect of the present invention.

[0072] It is understood that when the air conditioner is operating, the two adjustment components move synchronously in opposite directions, increasing the radius of one movable conical wheel 102 while simultaneously decreasing the radius of the other movable conical wheel 102. The two movable conical wheels 102 are connected by a conveyor belt 200. When the linear speeds of the two movable conical wheels 102 remain consistent, the angular velocities of the two rotating shafts 110 differ, causing the two fan blades to move at differential speeds. The two fan blades correspond to the upper and lower air outlets of the air conditioner, respectively, allowing one outlet to efficiently discharge air while the other outlet to efficiently exchange heat, thus ensuring efficient heat exchange in the room while improving user comfort.

[0073] In summary, according to the continuously variable speed fan and air conditioner provided by the embodiment of the present invention, the continuously variable speed fan includes a cone wheel assembly 100, a conveyor belt 200, fan blades, and an adjustment assembly; the cone wheel assembly 100 includes a movable cone wheel 102 and a rotating shaft 110 located at the center of the movable cone wheel 102, the movable cone wheel 102 is slidably connected to the rotating shaft 110, and the two movable cone wheels 102 are arranged in parallel; the conveyor belt 200 is sleeved on the outside of the two movable cone wheels 102 and is transmission-connected to the two movable cone wheels 102; the two fan blades are connected to the two rotating shafts 110 in a one-to-one correspondence, and the two adjustment assemblies are transmission-connected to the two movable cone wheels 102 in a one-to-one correspondence. The adjustment assembly switches the radius of the movable cone wheel 102 between a maximum radius and a minimum radius, and the two adjustment assemblies move in opposite directions synchronously. When the continuously variable speed fan is in operation, the two adjustment assemblies move in opposite directions synchronously, which can increase the radius of one movable cone wheel 102 and decrease the radius of the other movable cone wheel 102 synchronously. The two movable conical wheels 102 are connected by a conveyor belt 200. When the linear speeds of the two movable conical wheels 102 remain consistent, the angular velocities of the two rotating shafts 110 differ, causing the two fan blades to move at differential speeds. The two fan blades correspond to the upper and lower air outlets of the air conditioner, respectively, allowing one outlet to efficiently discharge air while the other outlet efficiently exchanges heat. This ensures efficient indoor heat exchange while preventing overcooled air from blowing directly onto the user's head, improving user comfort.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 continuously variable speed fan, characterized in that: include: Two sets of cone wheel assemblies, each of which includes a movable cone wheel and a rotating shaft located at the center of the movable cone wheel, the movable cone wheel being slidably connected to the rotating shaft, and the two sets of movable cone wheels being arranged in parallel; A conveyor belt is sleeved on the outside of the two movable conical wheels and is transmission-connected to the two movable conical wheels; Two fan blades, the two fan blades are connected to the two rotating shafts in a one-to-one correspondence; Two adjustment assemblies, the two adjustment assemblies are transmission-connected to the two movable conical wheels in a one-to-one correspondence, the adjustment assemblies switch the radius of the movable conical wheels between a maximum radius and a minimum radius, and the two adjustment assemblies move synchronously in opposite directions; The movable cone wheel includes a plurality of sliders, and the cone wheel assembly further includes: A fixed bevel wheel, wherein the center of the fixed bevel wheel is fixedly connected to the rotating shaft, a plurality of sliding grooves are evenly formed on the fixed bevel wheel, the plurality of sliding grooves extend along the radial direction of the fixed bevel wheel, and the plurality of sliding blocks are disposed in the plurality of sliding grooves in a one-to-one correspondence; a sleeve, sleeved on the outer side of the rotating shaft and transmission-connected to the plurality of sliders, the sleeve being connected to the adjustment assembly, the adjustment assembly enabling the sliders to switch between an end away from the rotating shaft and an end close to the rotating shaft in the chute; The fixed cone wheel includes a first wheel disc and a second wheel disc arranged in parallel, the first wheel disc and the second wheel disc are both formed with the sliding groove, and the sliding block is arranged between the first wheel disc and the second wheel disc and is slidably connected to the sliding grooves on both sides; A plurality of fixing members are provided on one side of the first wheel disc close to the sleeve, and at least one fixing member is provided on both sides of the slide groove; The fixing member is hinged to the swing member through a pin, and the swing member includes a first swing arm and a second swing arm with an included angle, the end of the first swing arm away from the pin is hinged to the sleeve, and the end of the second swing arm away from the pin is hinged to the slider.

2. The continuously variable speed fan according to claim 1, characterized in that: Positioning grooves are formed on both sides of the sliding block, and the first wheel disc and the second wheel disc are embedded in the positioning grooves at edges corresponding to the sliding grooves.

3. The continuously variable speed fan according to claim 1, characterized in that: The sliding groove extends to the edges of the first wheel disc and the second wheel disc and is communicated with the outside, and an anti-slip component is provided at the notch of the sliding groove.

4. The continuously variable speed fan according to claim 1, characterized in that: A side of the sliding block facing away from the rotating shaft forms a friction portion.

5. The continuously variable speed fan according to claim 1, characterized in that: A plurality of heat dissipation holes are formed on the first wheel disc and the second wheel disc.

6. The continuously variable speed fan according to claim 1, characterized in that: The adjustment assembly includes a hydraulically driven telescopic device or a servo motor driven telescopic device.

7. An air conditioner, characterized in that: The invention comprises the continuously variable speed fan according to any one of claims 1 to 6.

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