Air sweeping blade, air outlet assembly and air conditioner

Abstract

The invention provides an air sweeping blade, an air outlet assembly and an air conditioner, the air sweeping blade comprises a blade body, the blade body is provided with a rotating shaft, a shaft head of the rotating shaft is used for being matched with a shaft hole in an installation carrier in an inserted mode, and the shaft head comprises a solid limiting part and a hollow elastic limiting part; the solid limiting parts and the hollow elastic limiting parts are alternately arranged around the rotating axis of the rotating shaft, the diameter of the outer circle face of each solid limiting part is smaller than or equal to the aperture of the shaft hole, and the diameter of the outer circle of each hollow elastic limiting part is larger than the aperture of the shaft hole. According to the invention, the shaft head and the shaft hole are in elastic interference fit with each other at intervals in the circumferential direction of the shaft head through the hollow elastic limiting part, so that the contact limiting of the rotating shaft and the shaft hole can be ensured, and the outer circle diameter of the solid limiting part is smaller than or equal to that of the shaft hole, namely a gap is formed between the solid limiting part and the shaft hole; therefore, not only is the assembly between the air sweeping blade and the mounting carrier convenient, but also the matching tightness of the air sweeping blade and the mounting carrier is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of air conditioning, and in particular relates to an air sweeping blade, an air outlet component, and an air conditioner. Background Art

[0002] The sweeping blades of window air conditioners on the market are generally manual structures. The sweeping blades and the panel body are matched with shafts and holes. The sweeping blades are assembled together with the round shafts of the air outlet frame or the round holes of the panel body. During the assembly process, the sweeping blades and the panel body are affected by the production dimensional tolerances and mold structure, and the following problems have always existed, resulting in difficulties in production and assembly and complaints from poor user experience.

[0003] 1) When the shaft size of the wind sweeping blade is too large and the size of the matching panel hole is too small, the wind sweeping blade will be difficult to assemble during production, the wind sweeping blade will be too tight, and the pulling (swinging) will be inflexible;

[0004] 2) When the shaft size of the sweeping blade is too small and the size of the matching panel hole is too large, the fit will be loose. When the machine is working, the wind in the air duct inside the air conditioner will blow onto the blade due to the loose sweeping blade, causing abnormal noise. Summary of the invention

[0005] Therefore, the present invention provides a sweeping blade, an air outlet assembly, and an air conditioner, which can overcome the technical problem in the related art that after the rotating shaft of the sweeping blade is assembled with the corresponding mounting carrier such as the axial hole on the air outlet frame or the panel body, the two are assembled too tightly or too loosely due to the size deviation of the rotating shaft and the axial hole, which in turn causes the sweeping blade to swing inflexibly or the sweeping air produces abnormal noise.

[0006] In order to solve the above problems, the present invention provides a wind sweeping blade, including a blade body, the blade body having a rotating shaft, the shaft head of the rotating shaft is used to be inserted and matched with an axial hole on a mounting carrier, the shaft head includes a solid limiting portion and a hollow elastic limiting portion, the solid limiting portion and the hollow elastic limiting portion are alternately arranged around the rotation axis of the rotating shaft, wherein the outer circumferential surface diameter of the solid limiting portion is less than or equal to the aperture diameter of the axial hole, and the outer circumferential surface diameter of the hollow elastic limiting portion is larger than the aperture diameter of the axial hole.

[0007] In some embodiments, there are two of the solid limiting portions and two of the hollow elastic limiting portions respectively, and when projected on any radial plane of the rotating shaft, the two solid limiting portions and the two hollow elastic limiting portions form a cross arrangement.

[0008] In some embodiments, the side surfaces of the two solid limiting portions that are opposite to each other are inner side surfaces, a cross beam is connected between the inner side surfaces of the two solid limiting portions respectively, each of the hollow elastic limiting portions includes a limiting arm that is interference fit with the axial hole and connecting arms at both circumferential ends of the limiting arm, and the limiting arm is connected to the inner side surface of the solid limiting portion on the corresponding side through each connecting arm.

[0009] In some embodiments, the two solid limiting portions are symmetrical about the first axial plane of the rotating shaft, and each of the hollow elastic limiting portions is symmetrical about the first axial plane; and / or the inner and outer thicknesses of the connecting arm are 0.4 mm to 0.8 mm.

[0010] In some embodiments, the connecting arm is arranged at an angle, and an angle a is formed between the connecting arm and the first axial plane, and 45°≤a≤75°.

[0011] In some embodiments, the inner side surface of the limit arm has a deformation stop column extending toward the cross beam, and a maximum internal pressure limit gap of the limit arm is formed between the deformation stop column and the cross beam.

[0012] In some embodiments, the maximum internal pressure limiting gap is h, 0.3mm≤h≤0.6mm.

[0013] In some embodiments, a notch is formed on one side of the limiting arm and the connecting arm close to the blade body.

[0014] In some embodiments, the outer circle of the free end of the rotating shaft is chamfered.

[0015] The present invention further provides an air outlet frame assembly, including an air outlet formed on a mounting carrier, a plurality of wind sweeping blades are assembled in the air outlet, and each of the wind sweeping blades is the above-mentioned wind sweeping blade.

[0016] The present invention also provides an air conditioner, comprising the above-mentioned air outlet frame assembly.

[0017] The wind sweeping blade, air outlet assembly and air conditioner provided by the present invention have the following beneficial effects:

[0018] The aforementioned solid limiting part and the hollow elastic limiting part are alternately arranged in the circumferential direction of the shaft head, wherein the outer circumferential surface diameter of the solid limiting part is smaller than or equal to the aperture diameter of the shaft hole, and the outer circumferential surface diameter of the hollow elastic limiting part is larger than the aperture diameter of the shaft hole. In this way, after the shaft head and the shaft hole are both inserted, an elastic interference fit with alternating intervals is formed between the shaft head and the shaft hole in the circumferential direction of the shaft head through the aforementioned hollow elastic limiting part, thereby ensuring the contact limit of the rotating shaft and the shaft hole. Since the outer circumferential diameter of the solid limiting part is smaller than or equal to the shaft hole, that is, there is a gap between the solid limiting part and the shaft hole, it is convenient for the assembly between the wind sweeping blade and the mounting carrier, and ensures the tightness of the matching between the wind sweeping blade and the mounting carrier, effectively eliminating the phenomenon in the prior art that the size deviation of the rotating shaft and the shaft hole causes the two to be assembled too tightly or too loosely, thereby causing the wind sweeping blade to swing inflexibly or the wind sweeping produces abnormal noise. The solid limiting part can ensure that the shaft head of the rotating shaft has sufficient mechanical strength.

[0019] Two solid limiting parts and two hollow elastic limiting parts are respectively provided and are evenly spaced in the circumferential direction of the rotating shaft. On the one hand, the structural design of the shaft head of the rotating shaft can be simplified. On the other hand, the symmetry of the interference contact position between the hollow elastic limiting parts and the shaft hole can be achieved through the symmetrical distribution of the hollow elastic limiting parts, thereby ensuring uniform and balanced force on the rotating shaft.

[0020] By arranging a crossbeam between the two solid limiting parts, the mechanical strength of the rotating shaft can be further improved. At the same time, the limiting arm is formed into an arched overhead structure through the connecting arms on both sides, which can further improve the structural strength of the solid limiting parts on both sides while ensuring the elastic deformation capacity (that is, flexibility) of the limiting arm;

[0021] A deformation stop column is arranged on the inner side of the limit arm. When the limit arm is squeezed inwardly by an external force, the deformation stop column can effectively limit the maximum deformation amount of the limit arm inwardly (i.e., concave), that is, it plays a limiting role in the inward deformation of the limit arm, preventing the hollow elastic limit part from failing and being unable to reset due to excessive pressing;

[0022] By providing a notch on one side of the limiting arm and the connecting arm close to the blade body, the hollow elastic limiting portion is disconnected from the other parts of the rotating shaft, thus ensuring the uniformity of the limiting arm when deformed inwardly by an applied force. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. The drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0024] Figure 1 is a schematic diagram of the three-dimensional structure of the wind sweeping blade in an embodiment of the present invention at a certain viewing angle;

[0025] Figure 2 is a schematic diagram of the three-dimensional structure of the wind sweeping blade in the embodiment of the present invention from another viewing angle;

[0026] Figure 3 is a schematic diagram of the three-dimensional structure of the wind sweeping blade at the rotating shaft in an embodiment of the present invention;

[0027] Figure 4 is a schematic diagram of the three-dimensional structure of the wind sweeping blade at the rotating shaft in an embodiment of the present invention (from another viewing angle);

[0028] Figure 5 is a schematic diagram of the three-dimensional structure of the wind sweeping blade in the embodiment of the present invention from another viewing angle (partial cross-section);

[0029] Figure 6 is an axial projection diagram of the rotating shaft in the embodiment of the present invention;

[0030] Figure 7 is a schematic diagram of a state after the rotating shaft and the shaft hole of the mounting carrier in an embodiment of the present invention are assembled;

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of an air outlet component in another embodiment of the present invention.

[0032] The accompanying drawings are marked as follows:

[0033] 1. Sweep wind blades;

[0034] 11. Blade body; 12. Rotating shaft; 121. Solid limiting part; 122. Hollow elastic limiting part; 1221. Limiting arm; 1222. Connecting arm; 1223. Deformed stop column; 1224. Notch; 123. Crossbeam; 124. Chamfer; 13. Connecting rod connecting column;

[0035] 2. Install the carrier;

[0036] 21. Axis hole; 22. Air outlet;

[0037] 3. Wind sweeping connecting rod. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. 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.

[0039] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0040] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90° or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0041] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0042] See also Figures 1 to 8As shown, according to an embodiment of the present invention, a wind sweeping blade is provided, including a blade body 11, wherein the blade body 11 has a rotating shaft 12, wherein the rotating shaft 12 can be inserted into a corresponding cylinder set to be located in the blade body 11, and in some embodiments, the rotating shaft 12 can also be integrally injection molded with the blade body 11, wherein the shaft head of the rotating shaft 12 (not marked in the figure, having two, respectively located at the two ends of the rotating shaft 12) is used for inserting and matching with the shaft hole 21 provided on the mounting carrier 2, wherein the shaft head includes a solid limiting portion 121 and a hollow elastic limiting portion 122, wherein the solid limiting portion 121 and the hollow elastic limiting portion 122 are alternately arranged around the rotation axis of the rotating shaft 12, wherein the outer circumferential surface diameter of the solid limiting portion 121 is less than or equal to the aperture diameter of the shaft hole 21 to avoid a tight fit between the solid limiting portion 121 and the inner wall of the shaft hole 21, and the outer circumferential diameter of the hollow elastic limiting portion 122 is larger than the aperture diameter of the shaft hole 21, see for details. Figure 7 As shown. In order to drive each wind sweeping blade to swing, a connecting rod connecting column 13 is also provided at the corresponding position of each blade body 11 to form a driving connection with the wind sweeping connecting rod 3. In a specific embodiment, the outer diameter of the hollow elastic limiting portion 122 is 0.3mm to 0.5mm larger than the outer diameter of the solid limiting portion 121. Of course, the specific size is reasonably selected according to the specifications of the wind sweeping blade and the corresponding equipment. The aforementioned hollow elastic limiting portion 122 has an elastic deformation force due to its hollow structure, thereby ensuring that it has an elastic limiting function.

[0043] In this technical solution, the aforementioned solid limiting portion 121 and the hollow elastic limiting portion 122 are alternately arranged in the circumferential direction of the shaft head, wherein the outer diameter of the solid limiting portion 121 is less than or equal to the aperture of the shaft hole 21, and the outer diameter of the hollow elastic limiting portion 122 is greater than the aperture of the shaft hole 21. In this way, after the shaft head and the shaft hole 21 are inserted, the shaft head and the shaft hole 21 form an elastic interference fit with alternating intervals in the circumferential direction of the shaft head through the aforementioned hollow elastic limiting portion 122, thereby ensuring that the rotating shaft 12 and the shaft hole 21 are tightly connected. The two are in contact and limited, and the solid limiting portion 121 has an outer diameter less than or equal to the shaft hole 21, that is, there is a gap between the solid limiting portion 121 and the shaft hole 21. This not only facilitates the assembly between the wind sweeping blade and the mounting carrier, but also ensures the tightness of the fit between the wind sweeping blade and the mounting carrier 2, and effectively prevents the phenomenon in the prior art that the two are assembled too tightly or too loosely due to the size deviation of the rotating shaft and the shaft hole, which in turn causes the wind sweeping blade to swing inflexibly or the wind sweeping produces abnormal noises. The solid limiting portion 121 can ensure that the shaft head of the rotating shaft 12 has sufficient mechanical strength.

[0044] In some embodiments, there are two solid limiting portions 121 and two hollow elastic limiting portions 122 respectively. When projected on any radial plane of the rotating shaft 12, the two solid limiting portions 121 and the two hollow elastic limiting portions 122 form a cross arrangement, that is, each solid limiting portion 121 and the hollow elastic limiting portion 122 are evenly spaced in the circumferential direction of the rotating shaft 12.

[0045] In this technical solution, two solid limiting portions 121 and two hollow elastic limiting portions 122 are respectively provided and are evenly spaced in the circumferential direction of the rotating shaft 12. On the one hand, the structural design of the shaft head of the rotating shaft 12 can be simplified. On the other hand, the symmetry of the interference contact position with the shaft hole 21 can be achieved through the symmetrical distribution of the hollow elastic limiting portions 122, thereby ensuring that the force on the rotating shaft 12 is evenly balanced.

[0046] In some embodiments, the side surfaces of the two solid limiting portions 121 facing each other are inner side surfaces (not marked in the figure, the wall surface close to the shaft hole 21 is the outer side surface), and a cross beam 123 is connected between the inner side surfaces of the two solid limiting portions 121 respectively, and each of the hollow elastic limiting portions 122 includes a limiting arm 1221 that is interference fit with the shaft hole 21 and connecting arms 1222 at both circumferential ends of the limiting arm 1221, and the limiting arm 1221 is connected to the inner side surface of the solid limiting portion 121 on the corresponding side through each connecting arm 1222. It can be understood that the limiting The positioning arm 1221 and the connecting arms 1222 on both sides thereof form an arched overhead structure erected between the two solid limiting portions 121, thereby forming a hollow area between the cross beam 123, the two solid limiting portions 121, and between the limiting arm 1221 and the connecting arm 1222, so as to facilitate the elastic deformation of the hollow elastic limiting portion 122 toward the side of the cross beam 123 when subjected to external force. It can be understood at this time that since the limiting arm 1221 can deform inwardly after being subjected to force, although there is an interference fit between it and the shaft hole 21, it can ensure the reliable and stable rotation of the rotating shaft 12 relative to the shaft hole 21.

[0047] In this technical solution, by arranging a cross beam 123 between the two solid limiting parts 121, the mechanical strength of the rotating shaft 12 can be further improved. At the same time, the limiting arm 1221 is formed into an arched overhead structure through the connecting arms 1222 on both sides, which can further improve the structural strength of the solid limiting parts 121 on both sides while ensuring the elastic deformation ability (that is, flexibility) of the limiting arm 1221.

[0048] In some embodiments, the two solid limiting portions 121 are symmetrical about the first axial plane of the rotating shaft 12, and each of the hollow elastic limiting portions 122 is symmetrical about the first axial plane, that is, the limiting arm 1221 is symmetrical about the first axial plane, and the two connecting arms 1222 are symmetrical about the first axial plane to each other. In this way, the symmetry of the structural design ensures the relative uniformity of the deformation of the hollow elastic limiting portion 122 when subjected to force, and ensures the uniformity of the interference force between the two limiting arms 1221 and the shaft hole 21.

[0049] In order to take into account both the structural stability of the connecting arm 1222 and the deformation effect of the limiting arm 1221, the inner and outer thicknesses of the connecting arm 1222 are 0.4mm-0.8mm. The aforementioned inner and outer thicknesses specifically refer to the thickness of the connecting arm 1222 from the side of the hole wall close to the shaft hole 21 to the side of the hole wall away from the shaft hole 21, that is, the thickness in the diameter direction of the rotating shaft 12.

[0050] In some embodiments, the connecting arm 1222 is tilted, and an included angle a is formed between the connecting arm 1222 and the first axial plane, and 45°≤a≤75°.

[0051] In this technical solution, the two connecting arms 1222 are tilted at an angle between 45° and 75°, which can improve elasticity while ensuring reasonable resilience, thereby preventing the limiting arm 1221 from being unable to rebound and recover after the connecting arm 1222 is deformed, resulting in failure.

[0052] In some embodiments, the inner side surface of the limit arm 1221 (i.e., the side facing the beam 123) has a deformation stop column 1223 extending toward the beam 123, and a maximum internal pressure limit gap h of the limit arm 1221 is formed between the deformation stop column 1223 and the beam 123.

[0053] In this technical solution, a deformation stop column 1223 is provided on the inner side surface of the limit arm 1221. When the limit arm 1221 is squeezed inwardly by an external force, the deformation stop column 1223 can effectively limit the maximum deformation amount of the limit arm 1221 inwardly (i.e., concave), that is, it plays a limiting role on the inward deformation of the limit arm 1221, thereby preventing the hollow elastic limit portion 122 from failing and being unable to be reset due to excessive pressing.

[0054] In a specific embodiment, 0.3mm≤h≤0.6mm, to prevent the size from being too small and resulting in insufficient resilience, and the size from being too large and resulting in limited limiting effect.

[0055] In some embodiments, a notch 1224 is formed on one side of the limiting arm 1221 and the connecting arm 1222 close to the blade body 11 .

[0056] In this technical method, a notch 1224 is set on the side of the limiting arm 1221 and the connecting arm 1222 close to the blade body 11, so that the hollow elastic limiting part 122 is disconnected from the other parts of the rotating shaft 12, thereby ensuring the uniformity of the limiting arm 1221 when it is deformed inwardly when a force is applied.

[0057] In a specific embodiment, the axial width of the notch 1224 can be 0.5 mm-1 mm, and the circumferential width is determined according to the distance between the inner sides of the two solid limiting portions 121 , and of course also depends on the diameter of the shaft 12 .

[0058] In some embodiments, a chamfer 124 is formed on the outer circumference of the free end of the rotating shaft 12 .

[0059] In this technical solution, a chamfer 124 is provided at the free end of the rotating shaft 12, that is, the outer circle of the free end surface of the shaft head. The aforementioned chamfer is generally 20°-40°, and the corresponding axial length can be 0.3mm-1mm. During production, it plays a guiding role, facilitating the smooth installation of the wind sweeping blade into the shaft hole 21.

[0060] According to an embodiment of the present invention, there is also provided an air outlet frame assembly, including an air outlet 22 formed on a mounting carrier 2, wherein a plurality of wind sweeping blades 1 are assembled in the air outlet 22, and each wind sweeping blade 1 is the above-mentioned wind sweeping blade. The aforementioned mounting carrier 2 is, for example, an air outlet frame or a panel body.

[0061] In this technical solution, due to the use of the aforementioned wind sweeping blade, the aforementioned solid limiting portion 121 and the hollow elastic limiting portion 122 are alternately arranged in the circumferential direction of the shaft head, wherein the outer diameter of the solid limiting portion 121 is less than or equal to the aperture of the shaft hole 21, and the outer diameter of the hollow elastic limiting portion 122 is greater than the aperture of the shaft hole 21. In this way, after the shaft head and the shaft hole 21 are inserted, the shaft head and the shaft hole 21 form an elastic interference fit with alternating intervals in the circumferential direction of the shaft head through the aforementioned hollow elastic limiting portion 122, thereby ensuring that the rotating shaft 1 2 and the shaft hole 21 are contact-limited, and the solid limiting portion 121 has a gap with the shaft hole 21 because its outer diameter is less than or equal to that of the shaft hole 21, which not only facilitates the assembly between the wind sweeping blade and the mounting carrier, but also ensures the tightness of the matching between the wind sweeping blade and the mounting carrier 2, and effectively prevents the phenomenon in the prior art that the wind sweeping blade is not flexible in swinging or the wind sweeping produces abnormal noise due to the size deviation of the rotating shaft and the shaft hole, and the solid limiting portion 121 can ensure that the shaft head of the rotating shaft 12 has sufficient mechanical strength.

[0062] According to an embodiment of the present invention, there is further provided an air conditioner, comprising the above-mentioned air outlet frame assembly, and the above-mentioned air conditioner may specifically be a window air conditioner.

[0063] It is easy for those skilled in the art to understand that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0064] 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 and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. A wind sweeping blade, comprising a blade body (11), wherein the blade body (11) has a rotating shaft (12), wherein the shaft head of the rotating shaft (12) is used for inserting and fitting with a shaft hole (21) provided on a mounting carrier (2), wherein: The shaft head comprises a solid limiting portion (121) and a hollow elastic limiting portion (122), wherein the solid limiting portion (121) and the hollow elastic limiting portion (122) are alternately arranged around the rotation axis of the rotating shaft (12), wherein the outer diameter of the solid limiting portion (121) is less than or equal to the hole diameter of the shaft hole (21), and the outer diameter of the hollow elastic limiting portion (122) is greater than the hole diameter of the shaft hole (21).

2. The wind sweeping blade according to claim 1, characterized in that: The solid limiting parts (121) and the hollow elastic limiting parts (122) are respectively provided with two, and when projected onto any radial plane of the rotating shaft (12), the two solid limiting parts (121) and the two hollow elastic limiting parts (122) form a cross arrangement.

3. The wind sweeping blade according to claim 2, characterized in that: The side surfaces of the two solid limiting parts (121) facing each other are inner side surfaces, and a crossbeam (123) is connected between the inner side surfaces of the two solid limiting parts (121). Each of the hollow elastic limiting parts (122) comprises a limiting arm (1221) which is interference-fitted with the shaft hole (21) and connecting arms (1222) at both circumferential ends of the limiting arm (1221). The limiting arm (1221) is connected to the inner side surface of the solid limiting part (121) on the corresponding side through each connecting arm (1222).

4. The wind sweeping blade according to claim 3, characterized in that: The two solid limiting portions (121) are symmetrical about the first axial plane of the rotating shaft (12), and each of the hollow elastic limiting portions (122) is symmetrical about the first axial plane; and / or the inner and outer thicknesses of the connecting arm (1222) are 0.4 mm to 0.8 mm.

5. The wind sweeping blade according to claim 4, characterized in that: The connecting arm (1222) is arranged tilted, and an included angle a is formed between the connecting arm (1222) and the first axial surface, and 45°≤a≤75°.

6. The wind sweeping blade according to claim 3, characterized in that: The inner side surface of the limiting arm (1221) is provided with a deformation stop column (1223) extending toward the cross beam (123), and a maximum internal pressure limit gap of the limiting arm (1221) is formed between the deformation stop column (1223) and the cross beam (123).

7. The wind sweeping blade according to claim 6, characterized in that: The maximum internal pressure limiting gap is h, 0.3mm≤h≤0.6mm.

8. The wind sweeping blade according to claim 3, characterized in that: A notch (1224) is formed on one side of the limiting arm (1221) and the connecting arm (1222) close to the blade body (11).

9. The wind sweeping blade according to claim 1, characterized in that: The outer circle of the free end of the rotating shaft (12) is formed with a chamfer (124).

10. An air outlet frame assembly, comprising an air outlet (22) formed on a mounting carrier (2), wherein a plurality of air sweeping blades (1) are assembled in the air outlet (22), characterized in that: Each of the wind sweeping blades (1) is a wind sweeping blade according to any one of claims 1 to 9.

11. An air conditioner, characterized in that: It includes the air outlet frame assembly as claimed in claim 10.

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