Scanning wind blade, air outlet assembly and air conditioner

Abstract

The application provides a sweeping blade, an air outlet assembly and an air conditioner. The sweeping blade comprises a blade body, the blade body has a rotating shaft, the shaft head of the rotating shaft is used for being inserted and matched with the shaft hole on the mounting carrier, the shaft head comprises a solid limiting part and a hollow elastic limiting part, the solid limiting part and the hollow elastic limiting part are alternately arranged around the rotating axis of the rotating shaft, wherein the outer circular surface diameter of the solid limiting part is less than or equal to the hole diameter of the shaft hole, and the outer circular diameter of the hollow elastic limiting part is greater than the hole diameter of the shaft hole. The shaft head and the shaft hole are alternately and separately matched with each other in the circumferential direction of the shaft head through the hollow elastic limiting part, the contact limiting of the rotating shaft and the shaft hole is ensured, the outer circular diameter of the solid limiting part is less than or equal to the hole diameter of the shaft hole, that is, a gap exists between the solid limiting part and the shaft hole, so that the assembly of the sweeping blade and the mounting carrier is facilitated, and the tightness of the cooperation between the sweeping blade and the mounting carrier is ensured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of air conditioning, and particularly relates to a sweeping blade, an air outlet assembly and an air conditioner. BACKGROUND

[0002] The sweeping blade of the window air conditioner on the market is generally of a manual structure, and the sweeping blade and the panel body are matched by a shaft and a hole. The sweeping blade circular shaft and the air outlet frame or the panel body circular hole are assembled together. During the assembly of the sweeping blade and the panel body, due to the influence of the production size tolerance and the mold structure, the following problems exist, resulting in difficult production and assembly and poor user experience and complaints.

[0003] 1) When the shaft size of the sweeping blade is too large and the hole size of the matched panel body is too small, the sweeping blade is difficult to assemble during production, the sweeping blade is too tightly matched, and the pulling (swinging) is not flexible;

[0004] 2) When the shaft size of the sweeping blade is too small and the hole size of the matched panel body is too large, the matching is loose, and when the machine is working, due to the loosening of the sweeping blade, the wind in the air conditioner inside the air duct blows on the blade, and an abnormal sound is generated. SUMMARY

[0005] Therefore, the present application provides a sweeping blade, an air outlet assembly and an air conditioner, which can overcome the technical problems that the rotating shaft of the sweeping blade and the shaft hole on the corresponding installation carrier such as the air outlet frame or the panel body are too tightly or too loosely assembled due to the size deviation of the rotating shaft and the shaft hole, and further cause the sweeping blade to swing unflexibly or the sweeping to generate an abnormal sound.

[0006] In order to solve the above problems, the present application provides a sweeping blade, comprising a blade body, the blade body has a rotating shaft, the shaft head of the rotating shaft is used for plug-in matching with the shaft hole on the installation carrier, the shaft head comprises a solid limiting part and a hollow elastic limiting part, the solid limiting part and the hollow elastic limiting part are alternately arranged around the rotation axis of the rotating shaft, wherein the outer circular surface diameter of the solid limiting part is less than or equal to the hole diameter of the shaft hole, and the outer circular diameter of the hollow elastic limiting part is greater than the hole diameter of the shaft hole.

[0007] In some embodiments, the solid limiting part and the hollow elastic limiting part each have two, and two solid limiting parts and two hollow elastic limiting parts form a cross arrangement in any radial plane of the rotating shaft.

[0008] In some embodiments, the two solid limiting portions have inner sides opposite to each other, and a crossbeam is connected between the inner sides of the two solid limiting portions, each hollow elastic limiting portion comprises a limiting arm in interference fit with the shaft hole and a connecting arm at each circumferential end of the limiting arm, and the limiting arm is connected to the inner side of the corresponding solid limiting portion through the connecting arm.

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

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

[0011] In some embodiments, the inner side of the limiting arm has a deformation stop column extending towards the crossbeam, and a maximum inner pressure limiting gap of the limiting arm is formed between the deformation stop column and the crossbeam.

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

[0013] In some embodiments, the limiting arm and the connecting arm are formed with a notch near one side of the blade body.

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

[0015] The application further provides an air outlet frame assembly, which comprises a mounting carrier and an air outlet formed on the mounting carrier, and a plurality of air sweeping blades are assembled in the air outlet, each air sweeping blade being the air sweeping blade described above.

[0016] The application further provides an air conditioner comprising the air outlet frame assembly described above.

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

[0018] The solid limiting part and the hollow elastic limiting part are arranged alternately in the circumferential direction of the shaft head, wherein the outer circumferential diameter of the solid limiting part is less than or equal to the hole diameter of the shaft hole, and the outer circumferential diameter of the hollow elastic limiting part is greater than the hole diameter of the shaft hole, so that, after the shaft head and the shaft hole are inserted, the shaft head and the shaft hole are in elastic interference fit alternately and spaced in the circumferential direction of the shaft head through the hollow elastic limiting part, thereby ensuring the contact limiting of the shaft and the shaft hole, and the solid limiting part has a gap with the shaft hole because the outer circumferential diameter is less than or equal to the hole diameter of the shaft hole, so that the assembly of the sweeping blade and the mounting carrier is facilitated, and the tightness of the sweeping blade and the mounting carrier is ensured, thereby effectively preventing the phenomenon that the shaft and the shaft hole are too tight or too loose due to the size deviation of the shaft and the shaft hole, and the sweeping blade is not flexible or the sweeping produces abnormal sound, and the solid limiting part can ensure that the shaft head of the shaft has sufficient mechanical strength.

[0019] The solid limiting part and the hollow elastic limiting part are arranged alternately in the circumferential direction of the shaft head, wherein the outer circumferential diameter of the solid limiting part is less than or equal to the hole diameter of the shaft hole, and the outer circumferential diameter of the hollow elastic limiting part is greater than the hole diameter of the shaft hole, so that, after the shaft head and the shaft hole are inserted, the shaft head and the shaft hole are in elastic interference fit alternately and spaced in the circumferential direction of the shaft head through the hollow elastic limiting part, thereby ensuring the contact limiting of the shaft and the shaft hole, and the solid limiting part has a gap with the shaft hole because the outer circumferential diameter is less than or equal to the hole diameter of the shaft hole, so that the assembly of the sweeping blade and the mounting carrier is facilitated, and the tightness of the sweeping blade and the mounting carrier is ensured, thereby effectively preventing the phenomenon that the shaft and the shaft hole are too tight or too loose due to the size deviation of the shaft and the shaft hole, and the sweeping blade is not flexible or the sweeping produces abnormal sound, and the solid limiting part can ensure that the shaft head of the shaft has sufficient mechanical strength.

[0020] The solid limiting part and the hollow elastic limiting part are arranged alternately in the circumferential direction of the shaft head, wherein the outer circumferential diameter of the solid limiting part is less than or equal to the hole diameter of the shaft hole, and the outer circumferential diameter of the hollow elastic limiting part is greater than the hole diameter of the shaft hole, so that, after the shaft head and the shaft hole are inserted, the shaft head and the shaft hole are in elastic interference fit alternately and spaced in the circumferential direction of the shaft head through the hollow elastic limiting part, thereby ensuring the contact limiting of the shaft and the shaft hole, and the solid limiting part has a gap with the shaft hole because the outer circumferential diameter is less than or equal to the hole diameter of the shaft hole, so that the assembly of the sweeping blade and the mounting carrier is facilitated, and the tightness of the sweeping blade and the mounting carrier is ensured, thereby effectively preventing the phenomenon that the shaft and the shaft hole are too tight or too loose due to the size deviation of the shaft and the shaft hole, and the sweeping blade is not flexible or the sweeping produces abnormal sound, and the solid limiting part can ensure that the shaft head of the shaft has sufficient mechanical strength.

[0021] The solid limiting part and the hollow elastic limiting part are arranged alternately in the circumferential direction of the shaft head, wherein the outer circumferential diameter of the solid limiting part is less than or equal to the hole diameter of the shaft hole, and the outer circumferential diameter of the hollow elastic limiting part is greater than the hole diameter of the shaft hole, so that, after the shaft head and the shaft hole are inserted, the shaft head and the shaft hole are in elastic interference fit alternately and spaced in the circumferential direction of the shaft head through the hollow elastic limiting part, thereby ensuring the contact limiting of the shaft and the shaft hole, and the solid limiting part has a gap with the shaft hole because the outer circumferential diameter is less than or equal to the hole diameter of the shaft hole, so that the assembly of the sweeping blade and the mounting carrier is facilitated, and the tightness of the sweeping blade and the mounting carrier is ensured, thereby effectively preventing the phenomenon that the shaft and the shaft hole are too tight or too loose due to the size deviation of the shaft and the shaft hole, and the sweeping blade is not flexible or the sweeping produces abnormal sound, and the solid limiting part can ensure that the shaft head of the shaft has sufficient mechanical strength.

[0022] The solid limiting part and the hollow elastic limiting part are arranged alternately in the circumferential direction of the shaft head, wherein the outer circumferential diameter of the solid limiting part is less than or equal to the hole diameter of the shaft hole, and the outer circumferential diameter of the hollow elastic limiting part is greater than the hole diameter of the shaft hole, so that, after the shaft head and the shaft hole are inserted, the shaft head and the shaft hole are in elastic interference fit alternately and spaced in the circumferential direction of the shaft head through the hollow elastic limiting part, thereby ensuring the contact limiting of the shaft and the shaft hole, and the solid limiting part has a gap with the shaft hole because the outer circumferential diameter is less than or equal to the hole diameter of the shaft hole, so that the assembly of the sweeping blade and the mounting carrier is facilitated, and the tightness of the sweeping blade and the mounting carrier is ensured, thereby effectively preventing the phenomenon that the shaft and the shaft hole are too tight or too loose due to the size deviation of the shaft and the shaft hole, and the sweeping blade is not flexible or the sweeping produces abnormal sound, and the solid limiting part can ensure that the shaft head of the shaft has sufficient mechanical strength. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. The drawings in the following description are only exemplary, and those skilled in the art can also obtain other implementation drawings according to the provided drawings without paying creative labor.

[0024] Figure 1 is a perspective structural schematic view of the sweeping blade in an embodiment of the present application from one perspective;

[0025] Figure 2 is a perspective structural schematic view of the sweeping blade in an embodiment of the present application from another perspective;

[0026] Figure 3 is a perspective structural schematic view of the sweeping blade in an embodiment of the present application at the rotating shaft;

[0027] Figure 4 is a perspective structural schematic view of the sweeping blade in an embodiment of the present application at the rotating shaft (from another perspective);

[0028] Figure 5 is a perspective structural schematic view of the sweeping blade in an embodiment of the present application from another perspective (partially cutaway);

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

[0030] Figure 7 is a schematic view of the state after assembly of the rotating shaft and the shaft hole of the mounting carrier in an embodiment of the present application;

[0031] Figure 8 is a perspective structural schematic view of the air outlet assembly in another embodiment of the present application.

[0032] The reference signs are:

[0033] 1, sweeping blade;

[0034] 11, blade body; 12, rotating shaft; 121, solid limiting portion; 122, hollow elastic limiting portion; 1221, limiting arm; 1222, connecting arm; 1223, deformed stop column; 1224, notch; 123, crossbeam; 124, chamfer; 13, connecting rod connecting column;

[0035] 2, mounting carrier;

[0036] 21, shaft hole; 22, air outlet;

[0037] 3, sweeping connecting rod. DETAILED DESCRIPTION

[0038] Clearly, the embodiments described are only a part of all the embodiments of the present application, rather than all the embodiments. The description of the at least one example embodiment is merely illustrative, and is in no way intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of the present application.

[0039] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship are generally based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and in the absence of contrary description, these orientation words do not indicate and imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component.

[0040] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the devices described in the drawings. For example, if the devices in the drawings are inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the example term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90° or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0041] In addition, it should be noted that the use of "first", "second" and the like to define parts has only the purpose of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as limiting the scope of protection of the present application.

[0042] Reference is made to Figures 1 to 8As shown, according to the embodiment of the present application, a sweeping blade is provided, comprising a blade body 11, the blade body 11 having a rotating shaft 12, the rotating shaft 12 can be arranged in the corresponding cylinder of the blade body 11, in some embodiments, the rotating shaft 12 can also be integrally injection molded with the blade body 11, the shaft head (not marked in the figure, having two, respectively at both ends of the rotating shaft 12) of the rotating shaft 12 is used for plug-in cooperation with the shaft hole 21 on the mounting carrier 2, the shaft head comprises a solid limiting portion 121 and a hollow elastic limiting portion 122, the solid limiting portion 121 and the hollow elastic limiting portion 122 are arranged alternately around the rotation axis of the rotating shaft 12, wherein the outer circular surface diameter of the solid limiting portion 121 is less than or equal to the hole diameter of the shaft hole 21, so as to avoid tight fit between the solid limiting portion 121 and the inner wall of the hole of the shaft hole 21, the outer circular diameter of the hollow elastic limiting portion 122 is greater than the hole diameter of the shaft hole 21, see Figure 7 As shown, in order to be able to drive each sweeping blade to swing, a connecting rod connecting column 13 is also arranged at the corresponding position of each blade body 11, so as to form driving connection with the sweeping connecting rod 3. In a specific embodiment, the outer circular diameter of the hollow elastic limiting portion 122 is 0.3mm-0.5mm larger than the outer circular surface diameter of the solid limiting portion 121, of course, the specific size is reasonably selected according to the specification size of the sweeping blade and the corresponding equipment. The hollow elastic limiting portion 122 has elastic deformation force due to the hollow structure, thereby ensuring that it has the function of elastic limiting.

[0043] In the technical scheme, the solid limiting portion 121 and the hollow elastic limiting portion 122 are arranged alternately in the circumferential direction of the shaft head, wherein the outer circular surface diameter of the solid limiting portion 121 is less than or equal to the hole diameter of the shaft hole 21, and the outer circular diameter of the hollow elastic limiting portion 122 is greater than the hole diameter of the shaft hole 21, so that after the shaft head and the shaft hole 21 are plug-in assembled, the shaft head and the shaft hole 21 are alternately spaced in the circumferential direction of the shaft head by the elastic interference fit of the hollow elastic limiting portion 122, so as to ensure the contact limiting of the rotating shaft 12 and the shaft hole 21, and the solid limiting portion 121 has a gap with the shaft hole 21 due to the outer circular diameter being less than or equal to the hole diameter of the shaft hole 21, so as to facilitate the assembly between the sweeping blade and the mounting carrier, and ensure the tightness of the cooperation between the sweeping blade and the mounting carrier 2, effectively prevent the phenomenon of the tight or loose assembly of the rotating shaft and the shaft hole in the prior art, thereby causing the unsmooth swinging of the sweeping blade or the abnormal sound of the sweeping, and the solid limiting portion 121 can ensure that the shaft head of the rotating shaft 12 has sufficient mechanical strength.

[0044] In some embodiments, the two solid limiting portions 121 and the two hollow elastic limiting portions 122 are respectively arranged in a cross arrangement in any radial plane of the rotating shaft 12, that is, the solid limiting portions 121 and the hollow elastic limiting portions 122 are arranged at equal intervals in the circumferential direction of the rotating shaft 12.

[0045] In the technical solution, the two solid limiting portions 121 and the two hollow elastic limiting portions 122 are respectively arranged in a cross arrangement in the circumferential direction of the rotating shaft 12, which can simplify the structural design of the shaft head of the rotating shaft 12 and ensure that the positions of the interference fit between the hollow elastic limiting portions 122 and the shaft hole 21 are symmetrical, thereby ensuring that the rotating shaft 12 is uniformly and balancedly stressed.

[0046] In some embodiments, the two solid limiting portions 121 are respectively provided with inner sides (not shown in the figure, the wall surface close to the shaft hole 21 is an outer side), and the inner sides of the two solid limiting portions 121 are connected by a crossbeam 123. Each hollow elastic limiting portion 122 includes a limiting arm 1221 in interference fit with the shaft hole 21 and a connecting arm 1222 at both ends of the limiting arm 1221 in the circumferential direction. The limiting arm 1221 is connected to the inner side of the corresponding solid limiting portion 121 by the connecting arm 1222. As can be understood, the limiting arm 1221 and the connecting arms 1222 on both sides thereof form an arched overhead structure arranged between the two solid limiting portions 121, thereby forming a hollow region between the crossbeam 123, the two solid limiting portions 121, and the limiting arm 1221 and the connecting arms 1222, so as to facilitate the elastic deformation of the hollow elastic limiting portion 122 toward the side of the crossbeam 123 when the hollow elastic limiting portion 122 is subjected to external force. As can be understood, since the limiting arm 1221 can deform toward the inner side after being stressed, the interference fit between the limiting arm 1221 and the shaft hole 21 can ensure that the rotating shaft 12 reliably and stably rotates relative to the shaft hole 21.

[0047] In the technical solution, the crossbeam 123 is arranged between the two solid limiting portions 121, which can further improve the mechanical strength of the rotating shaft 12. Meanwhile, the limiting arm 1221 and the connecting arms 1222 on both sides thereof form an arched overhead structure, which can improve the structural strength of the two solid limiting portions 121 on both sides while ensuring the elastic deformation capability (i.e., flexibility) of the limiting arm 1221.

[0048] In some embodiments, the two solid limiting portions 121 are symmetric about a first axial plane of the rotating shaft 12, and each of the hollow elastic limiting portions 122 is symmetric about the first axial plane, that is, the limiting arm 1221 is symmetric about the first axial plane, and the two connecting arms 1222 are symmetric about the first axial plane, so that the symmetry of the structure ensures the relative uniformity of the deformation of the hollow elastic limiting portion 122 under stress, and ensures the uniformity of the interference force between the two limiting arms 1221 and the shaft hole 21.

[0049] In order to balance 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, and the aforementioned inner and outer thicknesses specifically refer to the thickness of the connecting arm 1222 in the diameter direction of the rotating shaft 12.

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

[0051] In the technical solution, the two connecting arms 1222 are inclined, and the inclination angle is between 45° and 75°, so that the elasticity is improved while the reasonable resilience is ensured, and the failure caused by the inability of the limiting arm 1221 to recover after deformation is prevented.

[0052] In some embodiments, the inner side surface (that is, the side surface toward the cross beam 123) of the limiting arm 1221 has a deformation stop column 1223 extending toward the cross beam 123, and the deformation stop column 1223 and the cross beam 123 form a maximum inner pressure limiting gap h of the limiting arm 1221.

[0053] In the technical solution, the deformation stop column 1223 is arranged on the inner side surface of the limiting arm 1221, and when the limiting arm 1221 is pressed inward under external force, the deformation stop column 1223 can effectively limit the maximum deformation of the inward deformation (that is, the concave deformation) of the limiting arm 1221, that is, the deformation stop column 1223 can limit the inward deformation of the limiting arm 1221, and prevent the hollow elastic limiting portion 122 from failing to reset due to excessive pressing.

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

[0055] In some embodiments, the limiting arm 1221 and the connecting arm 1222 are formed with a notch 1224 near one side of the blade body 11.

[0056] In the technical scheme, the notches 1224 are arranged on one 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 other parts of the rotating shaft 12, and the uniformity of the limiting arm 1221 when being deformed inwardly under the force is ensured.

[0057] In one specific embodiment, the axial width of the notch 1224 is 0.5mm-1mm, and the circumferential width is determined according to the interval of the inner side of the two solid limiting parts 121, and is also determined according to the diameter of the rotating shaft 12.

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

[0059] In the technical scheme, the chamfer 124 is arranged on the free end surface of the free end of the shaft head of the rotating shaft 12, and the chamfer is generally 20°-40°, and the corresponding axial length can be 0.3mm-1mm. In production, the chamfer plays a guiding role, and facilitates the smooth assembly of the sweeping blade into the shaft hole 21.

[0060] According to the embodiments of the present application, an air outlet frame assembly is also provided, which comprises a mounting carrier 2, and the mounting carrier 2 is further formed with an air outlet 22, and a plurality of sweeping blades 1 are assembled in the air outlet 22, and each sweeping blade 1 is the sweeping blade described above. The mounting carrier 2 is, for example, an air outlet frame or a panel body.

[0061] In the technical scheme, the solid limiting part 121 and the hollow elastic limiting part 122 are alternately arranged in the circumferential direction of the shaft head by using the sweeping blade described above, the outer circular surface diameter of the solid limiting part 121 is less than or equal to the hole diameter of the shaft hole 21, and the outer circular diameter of the hollow elastic limiting part 122 is greater than the hole diameter of the shaft hole 21. Thus, after the shaft head and the shaft hole 21 are inserted and assembled, the shaft head and the shaft hole 21 are alternately and spacedly elastically interference-fitted in the circumferential direction of the shaft head by the hollow elastic limiting part 122, the contact limiting of the rotating shaft 12 and the shaft hole 21 is ensured, the solid limiting part 121 has a gap with the shaft hole 21 because the outer circular diameter is less than or equal to the hole diameter of the shaft hole 21, so that the assembly between the sweeping blade and the mounting carrier is facilitated, and the tightness of the cooperation between the sweeping blade and the mounting carrier 2 is ensured, the phenomenon that the rotating shaft and the shaft hole are too tight or too loose due to the size deviation of the rotating shaft and the shaft hole in the prior art is effectively eliminated, and the phenomenon that the sweeping blade is not flexible or the sweeping produces abnormal sound is effectively eliminated, and the solid limiting part 121 can ensure that the shaft head of the rotating shaft 12 has sufficient mechanical strength.

[0062] According to the embodiments of the present application, an air conditioner is also provided, which comprises the air outlet frame assembly described above, and the air conditioner can be a window type air conditioner.

[0063] Those skilled in the art can easily understand that the advantageous technical features of the above-mentioned modes can be freely combined and superimposed without conflict.

[0064] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A sweeping blade comprising a blade body (11) having a rotation shaft (12) with a shaft head for plug-in cooperation with a shaft hole (21) present on a mounting carrier (2), characterized in that The shaft head comprises solid limiting portions (121) and hollow elastic limiting portions (122), the solid limiting portions (121) and the hollow elastic limiting portions (122) are alternately arranged around the rotation axis of the rotating shaft (12), wherein the outer circular surface diameter of the solid limiting portion (121) is less than or equal to the hole diameter of the shaft hole (21), the outer circular diameter of the hollow elastic limiting portion (122) is greater than the hole diameter of the shaft hole (21); the solid limiting portion (121) and the hollow elastic limiting portion (122) are two respectively, in 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; the side surfaces of the two solid limiting portions (121) opposite to each other are inner side surfaces, the two solid limiting portions (121) have a crossbeam (123) connected between the inner side surfaces respectively, each hollow elastic limiting portion (122) comprises a limiting arm (1221) in interference fit with the shaft hole (21) and a connecting arm (1222) at the circumferential two ends of the limiting arm (1221), the limiting arm (1221) is connected with the inner side surface of the corresponding side of the solid limiting portion (121) through the connecting arm (1222); the inner side surface of the limiting arm (1221) has a deformation stop column (1223) extending towards the crossbeam (123), the deformation stop column (1223) and the crossbeam (123) form the maximum inner pressure limiting gap of the limiting arm (1221).

2. The air sweeping blade of claim 1, wherein, The two solid limiting portions (121) are axially symmetric about the first axial plane of the rotating shaft (12), and each hollow elastic limiting portion (122) is symmetric about the first axial plane; and / or the inner and outer thicknesses of the connecting arm (1222) are 0.4mm-0.8mm.

3. A sweep vane according to claim 2, wherein, The connecting arm (1222) is obliquely arranged, and the connecting arm (1222) and the first axial plane form an included angle a, 45°≤a≤75°.

4. The air sweeping blade of claim 3, wherein, The maximum inner pressure limiting gap is h, 0.3mm≤h≤0.6mm.

5. The air sweeping blade of claim 1, wherein, The limiting arm (1221) and the connecting arm (1222) are formed with notches (1224) on the side close to the blade body (11).

6. The air sweeping blade of claim 1, wherein, The outer circle of the free end of the rotating shaft (12) is formed with a chamfer (124).

7. An air outlet frame assembly, comprising a mounting carrier (2) further formed with an air outlet (22), a plurality of air sweeping blades (1) being assembled in the air outlet (22), characterized in that, Each air sweeping blade (1) is the air sweeping blade according to any one of claims 1-6.

8. An air conditioner characterized by comprising: The air outlet frame assembly comprises the air sweeping blade according to claim 7.

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