A chuck structure and air conditioner

Abstract

The present invention provides a chuck structure and an air conditioner. The chuck structure is used to connect a motor and a fan blade, and includes a disc structure and a first connection structure. The disc structure is detachably connected to the motor. One end of the disc structure facing the fan blade is fixedly connected to the first connection structure, and the first connection structure is suitable for being clamped on the end surface of the fan blade. In the present invention, the first connection structure is fixedly connected to the disc structure, the fan blade is clamped to the first connection structure, and the disc structure is detachably connected to the motor, so that the fan blade is connected to the motor. The motor does not need to be inserted into the shaft hole of the fan blade, and screws are no longer required for fastening. The fan blade is more convenient to disassemble and assemble, thereby improving the efficiency of disassembly and assembly. At the same time, the fan blade does not need to be manually adjusted for axial positioning, and the axial position is more reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a chuck structure and an air conditioner. Background Art

[0002] The fan blades and motors in existing air conditioner indoor units are mostly installed by screws. When installing, the motor shaft is first inserted into the shaft hole on the fan blade that matches the motor shaft, and then the axial position of the fan blade is adjusted. Finally, the fan blade and the motor shaft are fixed by screwing the screws from the side of the motor shaft into the designated position on the motor shaft. This fixing method has low installation efficiency, and the motor shaft and the fan blade are easily stuck during disassembly. The axial positioning of the fan blade needs to be manually adjusted during installation, and the positioning accuracy is unreliable. Summary of the invention

[0003] The problem solved by the present invention is how to improve the efficiency of disassembling and assembling the fan blades and make the axial position of the fan blades more reliable.

[0004] To solve the above problems, the present invention provides a chuck structure for connecting a motor and a fan blade, comprising a disc structure and a first connecting structure; the disc structure is detachably connected to the motor; one end of the disc structure facing the fan blade is fixedly connected to the first connecting structure, and the first connecting structure is suitable for being clamped on the end surface of the fan blade.

[0005] In this way, the first connecting structure is fixedly connected to the disk structure, the fan blades are clamped with the first connecting structure, and the disk structure and the motor are detachably connected, so that the fan blades are connected to the motor. The motor does not need to be inserted into the axial hole of the fan blade, and screws are no longer required for fastening. The fan blades are more convenient to disassemble and assemble, thereby improving the disassembly and assembly efficiency. At the same time, the fan blades do not need manual adjustment for axial positioning, and the axial position is more reliable.

[0006] Furthermore, the first connection structure comprises an elastic buckle, the end surface of the fan blade is provided with a mounting groove structure, and the elastic buckle is suitable for passing through the mounting groove structure to be clamped with the end surface of the fan blade.

[0007] The clamping cooperation between the elastic buckle and the installation slot structure is easy to operate, thereby improving the disassembly and assembly efficiency.

[0008] Furthermore, the elastic buckle includes a main body and a deformation part; one end of the main body is fixedly connected to the disc structure, and the other end is fixedly connected to the deformation part; the deformation part is suitable for generating deformation so that the main body and the deformation part pass toward the end face of the fan blade and are clamped in the mounting groove structure of the end face of the fan blade.

[0009] In this way, the size of the installation groove structure on the end face of the fan blade is fixed, and the deformation part is suitable for generating deformation, so that the end of the first connection structure facing the end face of the fan blade has a certain deformation amount and can be smoothly inserted into the installation groove structure, thereby facilitating the first connection structure to be clamped with the fan blade.

[0010] Furthermore, the first connection structure further includes a guide rib, and the guide rib is arranged on a side of the deformation portion away from the main body portion.

[0011] In this way, the guide rib is arranged on the side of the deformation part away from the main body, so that the thickness of the deformation part where the guide rib is arranged is increased, making the first connection structure not easy to loosen, thereby improving the firmness of the first connection structure and the fan blade.

[0012] Furthermore, the deformation portion is provided with a folding structure, the folding structure is bent toward a side away from the main body, and forms a slot structure with the guide rib, and the slot structure is suitable for the edge of the installation slot structure on the end face of the fan blade to extend into.

[0013] In this way, the folding structure is bent toward the side away from the main body, the gap between the rear end of the deformation part and the main body becomes larger, and the deformation part has a larger deformation space, which makes the deformation part easier to deform. At the same time, the folding structure is bent toward the side away from the main body and forms a slot structure with the guide rib, which can limit the position of the edge of the installation slot structure on the first connecting structure. Thereby, the clamping depth of the first connecting structure can be limited, and the edge of the installation slot structure is within the slot structure on the first connecting structure, thereby improving the firmness of the clamping between the first connecting structure and the fan blade.

[0014] Furthermore, the bending angle of the folding structure ranges from 130° to 140°.

[0015] In this way, a bending angle that is too small can easily hinder the edge of the mounting slot structure from being inserted into the slot structure and is not aesthetically pleasing, and a bending angle that is too large can not limit the edge of the mounting slot structure. Therefore, a reasonable bending angle can make the edge of the mounting slot structure easier to insert into the slot structure and more aesthetically pleasing.

[0016] Furthermore, the guide rib includes a first inclined surface structure and a second inclined surface structure, the second inclined surface structure is arranged on a side of the guide rib facing the motor, and an inclination angle of the second inclined surface structure is greater than an inclination angle of the first inclined surface structure.

[0017] In this way, the first inclined surface structure and the second inclined surface structure have less obstruction effect relative to the vertical surface structure when the first connecting structure moves horizontally, thereby making it easier for the first connecting structure to withdraw from or slide into the mounting groove structure. In addition, the inclination angle of the second inclined surface structure is greater than the inclination angle of the first inclined surface structure, making it easier for the edge of the mounting groove structure to get stuck and the fan blades less likely to fall off.

[0018] Furthermore, a rounded structure is provided at one end of the guide rib away from the deformation portion.

[0019] In this way, the surface of the rounded structure is smoother and has less friction than that of an ordinary structure with edges, and the obstruction effect is smaller when the first connecting structure moves horizontally, thereby making it easier for the first connecting structure to withdraw from or slide into the installation slot structure.

[0020] Furthermore, the disc body structure is provided with a second connection structure, and the second connection structure is a threaded hole structure, and the disc body structure is suitable for being threadedly connected to the motor shaft of the motor through the threaded hole structure.

[0021] In this way, the threaded hole structure is easy to manufacture, has a simple structure, strong versatility, and is easy to install, thereby saving costs and improving installation efficiency.

[0022] Another object of the present invention is to provide an air conditioner to solve the problem of how to improve the efficiency of assembly and disassembly of the fan blades and make the axial position of the fan blades more reliable.

[0023] To solve the above problems, the technical solution of the present invention is achieved as follows:

[0024] An air conditioner comprises a motor and a fan blade and a chuck structure as described in any one of the above items, wherein the motor and the fan blade are connected via the chuck structure.

[0025] The advantages of the air conditioner and the above-mentioned chuck structure over the prior art are the same, which will not be repeated here.

[0026] Furthermore, an external thread structure is provided on the motor shaft of the motor, and the second connection structure of the chuck structure is a threaded hole structure. The motor shaft is threadedly connected to the chuck structure through the external thread structure and the threaded hole structure, and the locking direction of the motor shaft and the chuck structure is opposite to the rotation direction of the fan blade.

[0027] In this way, the locking direction of the motor shaft and the chuck structure is opposite to the rotation direction of the fan blade. When the fan blade rotates, the motor shaft and the chuck structure of the motor will not be disengaged, thereby improving the reliability of the connection between the motor and the fan blade.

[0028] Furthermore, a limiting member is provided on the motor shaft, and the limiting member is suitable for axially positioning the chuck structure.

[0029] In this way, the limiting member is suitable for axially positioning the chuck structure, thereby improving the axial positioning accuracy of the chuck structure.

[0030] Furthermore, the limiting member is a flange, which is sleeved on the motor shaft and located at an end of the external thread structure away from the fan blade, and the flange is suitable for limiting the disc structure of the chuck structure from moving toward the motor.

[0031] In this way, the flange is easy to manufacture and simple to install, thereby saving costs and improving installation efficiency.

[0032] Furthermore, a mounting groove structure is provided on the end surface of the fan blade facing the motor, the main body and the deformation part of the chuck structure are inserted into the mounting groove structure, and the edge of the mounting groove structure is inserted into the chuck structure.

[0033] In this way, the edge of the mounting groove structure is inserted into the clamping groove structure of the clamping disc structure, thereby improving the firmness of the clamping connection between the clamping disc structure and the fan blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the assembly of the chuck structure, the motor shaft and the fan blades in an embodiment of the present invention;

[0035] Figure 2 A schematic diagram of the three-dimensional structure of a chuck structure in an embodiment of the present invention;

[0036] Figure 3 A schematic diagram of a three-dimensional structure from another angle of the chuck structure in an embodiment of the present invention;

[0037] Figure 4 For the embodiment of the present invention Figure 3 The enlarged view of point A in the middle;

[0038] Figure 5 A side view of a chuck structure in an embodiment of the present invention;

[0039] Figure 6 This is a schematic diagram of the structure of the motor shaft in an embodiment of the present invention;

[0040] Figure 7 is a side view of a motor shaft in an embodiment of the present invention;

[0041] Figure 8 It is a side view of the end surface of the fan blade in the embodiment of the present invention.

[0042] Description of reference numerals:

[0043] 1-first connection structure; 2-disk structure; 3-motor; 4-fan blades; 11-main body; 12-deformation part; 13-guide ribs; 14-folding structure; 15-slot structure; 21-second connection structure; 31-motor shaft; 32-limiting member; 41-installation slot structure; 131-first inclined surface structure; 132-second inclined surface structure; 133-rounded corner structure. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0045] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "rear", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and a coordinate system XYZ is set herein, wherein the positive direction of the X-axis represents the right direction, the reverse direction of the X-axis represents the left direction, the positive direction of the Y-axis represents the front direction, the reverse direction of the Y-axis represents the rear direction, the positive direction of the Z-axis represents the top, and the reverse direction of the Z-axis represents the bottom; these are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0046] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, an embodiment of the present invention provides a chuck structure for connecting a motor 3 and a fan blade 4, comprising a disc structure 2 and a first connecting structure 1; the disc structure 2 is detachably connected to the motor 3; one end of the disc structure 2 facing the fan blade 4 is fixedly connected to the first connecting structure 1, and the first connecting structure 1 is suitable for being clamped on the end face of the fan blade 4.

[0047] like Figure 1 and Figure 8 As shown, the end face of the fan blade 4 is a planar structure, which is convenient for setting the installation groove structure 41, and no other components are arranged on the edge of the planar structure, which does not affect the snap-fitting between the first connecting structure 1 and the installation groove structure 41, making the snap-fitting more convenient; in addition, the fan blade does not need other connecting parts to be directly snap-fitted with the chuck structure through the end face, which is simple to load and unload, and also saves more materials and costs.

[0048] The chuck structure includes a disc body structure 2 and a first connecting structure 1. The first connecting structure 1 can be a buckle, a latch or other forms of connecting structures. One or more first connecting structures 1 can be provided. Preferably, the first connecting structure 1 in this embodiment uses a buckle, and there are three buckles. The three buckles are distributed in an equilateral triangle and fixedly connected to the edge of the disc body structure 2. The buckle is simple in design, easy to use, low in cost, and highly versatile. The equilateral triangle distribution can make the force received by each buckle and the fan blade 4 more uniform.

[0049] The disc structure 2 may also be circular, square or a combination thereof. Preferably, the disc structure 2 in this embodiment is a circular disc, and the distances from each point on the edge of the circular disc to the center are equal, which is convenient for arranging the first connection structure 1 and is not easy to deviate when rotating with the motor 3. The second connection structure 21 may be arranged at the center, edge or any part of the disc structure 2. Preferably, in this embodiment, the second connection structure 21 is arranged at the center of the disc structure 2, so that the disc structure 2 can rotate coaxially with the motor 3.

[0050] The first connecting structure 1 is fixedly connected to the disk structure 2, the fan blade 4 is clamped with the first connecting structure 1, and the disk structure 2 is threadedly connected to the motor 3 through the second connecting structure 21, so that the fan blade 4 is connected to the motor 3. The motor 3 does not need to be inserted into the axial hole of the fan blade 4, and no screws are needed for fastening. The fan blade 4 is more convenient to disassemble and assemble, thereby improving the disassembly and assembly efficiency. At the same time, the fan blade 4 does not need to be manually adjusted for axial positioning, and the axial position is more reliable.

[0051] like Figure 1 As shown, the first connection structure 1 includes an elastic buckle, and the end surface of the fan blade 4 is provided with a mounting groove structure 41 . The elastic buckle is suitable for passing through the mounting groove structure 41 and being engaged with the end surface of the fan blade 4 .

[0052] The elastic buckle includes a main body 11 and a deformation part 12; one end of the main body 11 is fixedly connected to the disc structure 2, and the other end is fixedly connected to the deformation part 12; the deformation part 12 is suitable for generating deformation so that the main body 11 and the deformation part 12 pass toward the end face of the fan blade 4 and are clamped in the installation groove structure 41 on the end face of the fan blade 4.

[0053] The first connection structure 1 is a buckle, and the buckle can be various forms of buckles such as elastic buckles or movable push-hook buckles. The buckle in this embodiment is an elastic buckle, which includes a main body 11 and a deformation part 12. One end of the main body 11 is fixedly connected to the edge of the disc structure 2, and the other end of the main body 11 can be fixedly connected to the deformation part 12 to form a U-shape. Under the action of external force, the deformation part 12 approaches the main body 11 along the deformation space between the main body 11 and deforms. The main body 11 and the deformation part 12 can also be fixedly connected to form a whole. The deformation part 12 adopts an elastic and flexible material. The deformation part 12 can also be squeezed and deformed under the action of external force to approach the main body 11 and deform. Preferably, a U-shaped elastic buckle is selected in this embodiment. The U-shaped elastic buckle is simple in design, easy to use, and inexpensive, which is conducive to cost saving.

[0054] The size of the elastic buckle can be designed according to actual needs. The shape of the main body 11 and the deformation part 12 of the elastic buckle can be cylindrical, square or various shapes combined therefrom. In this embodiment, the main body 11 is a square column with a length of 15mm, a width of 8mm, and a thickness of 7mm with curved side edges. The deformation part 12 is a square column with a length of 8.5mm, a width of 8mm, and a thickness of 7mm with curved side edges. The end where the deformation part 12 is connected to the main body 11 is a U-shaped structure, and the spacing between the two sides of the U-shaped structure is 4mm. The side of the elastic buckle is in an arc shape, and the arc-shaped side is smoother, which is conducive to the convenient connection between the elastic buckle and the fan blade 4.

[0055] The size of the mounting groove structure 41 on the end face of the fan blade 4 is fixed, and the deformation portion 12 is suitable for approaching and deforming toward the main body 11, so that the end of the first connecting structure 1 facing the mounting groove structure 41 on the end face of the fan blade 4 has a certain deformation amount and can pass through the mounting groove structure 41 smoothly, thereby facilitating the first connecting structure 1 to be clamped with the fan blade 4.

[0056] like Figure 2 and Figure 3 As shown, the first connection structure 1 further includes a guide rib 13 , and the guide rib 13 is arranged on a side of the deformation portion 12 away from the main body portion 11 .

[0057] The first connecting structure 1 is an elastic buckle, and a guide rib 13 is provided on the side of the deformation portion 12 of the elastic buckle away from the main body portion 11. The guide rib 13 can be arranged at the front end, middle part or rear end of the deformation portion 12, and can also be arranged at the edge or middle of the deformation portion 12. Preferably, in this embodiment, the guide rib 13 is arranged in the middle of the deformation portion 12, which can not only guide and limit the elastic buckle from disengaging, but also make the elastic buckle slide in or out more smoothly. The size of the guide rib 13 can be designed according to actual needs, and its width is generally designed to be half of the width of the elastic buckle. For example, the width of the guide rib 13 is 4 mm.

[0058] The guide rib 13 is arranged on the side of the deformation part 12 away from the main body 11, so that the thickness of the deformation part 12 where the guide rib 13 is arranged is increased, making the first connection structure 1 not easy to loosen, thereby improving the firmness of the first connection structure 1 and the fan blade 4.

[0059] like Figure 2 , Figure 3 and Figure 4 As shown, the deformation portion 12 is provided with a folding structure 14, which is bent toward a side away from the main body 11 and forms a slot structure 15 with the guide rib 13. The slot structure 15 is suitable for the edge of the mounting slot structure 41 on the end face of the fan blade 4 to extend into.

[0060] The size of the slot structure 15 can be designed according to actual needs, preferably to be able to clamp the edge of the mounting slot structure 41 on the end face of the fan blade. For example, the edge thickness of the mounting slot structure 41 is 3 mm, and the length of the slot structure 15 is 3.3 mm.

[0061] The folding structure 14 is bent toward the side away from the main body 11, and the gap between the rear end of the deformation part 12 and the main body 11 becomes larger. The deformation part 12 has a larger deformation space, which makes it easier for the deformation part 12 to deform. At the same time, the folding structure 14 is bent toward the side away from the main body 11 and forms a slot structure 15 with the guide rib 13, which can limit the position of the edge of the installation slot structure 41 on the first connecting structure 1. Thereby, the clamping depth of the first connecting structure 1 can be limited, and the edge of the installation slot structure 41 is within the slot structure 15 on the first connecting structure 1, thereby improving the firmness of the clamping between the first connecting structure 1 and the fan blade 4.

[0062] like Figure 4 As shown, the bending angle of the folding structure 14 ranges from 130° to 140°.

[0063] The bending angle refers to the angle α formed between the folded edge structure 14 bending toward the side away from the main body 11 and the deformation portion 12. α can be an acute angle, a right angle or an obtuse angle. Preferably, in this embodiment, α is an obtuse angle, and the value range of α is 130° to 140°, for example, 135°.

[0064] If the bending angle is too small, it will easily hinder the edge of the mounting slot structure 41 from being inserted into the slot structure 15 and it will be unsightly. If the bending angle is too large, it will not limit the edge of the mounting slot structure 41. Therefore, a reasonable bending angle can make the edge of the mounting slot structure 41 easier to insert into the slot structure 15 and more beautiful.

[0065] like Figure 3 and Figure 4As shown, the guide rib 13 includes a first inclined surface structure 131 and a second inclined surface structure 132 . The second inclined surface structure 132 is arranged on the side of the guide rib 13 facing the motor 3 . The inclination angle of the second inclined surface structure 132 is greater than the inclination angle of the first inclined surface structure 131 .

[0066] In this embodiment, the guide rib 13 is provided with a first inclined surface structure 131 and a second inclined surface structure 132. The first inclined surface structure 131 faces the slot structure 15, and the angle between the first inclined surface structure 131 and the deformation portion 12 is in the range of 115° to 125°, for example, 120°; the second inclined surface structure 132 faces away from the slot structure 15, and the angle between the second inclined surface structure 132 and the deformation portion 12 is in the range of 145° to 155°, for example, 150°.

[0067] The first inclined surface structure 131 or the second inclined surface structure 132 has less obstruction effect relative to the vertical surface structure when the first connecting structure 1 moves horizontally, thereby making it easier for the first connecting structure 1 to withdraw from or slide into the mounting groove structure 41. In addition, the inclination angle of the second inclined surface structure is greater than the inclination angle of the first inclined surface structure, making it easier for the edge of the mounting groove structure to get stuck and the fan blades less likely to fall off.

[0068] like Figure 4 As shown, one end of the guide rib 13 away from the deformation portion 12 is further provided with a rounded structure 133 so that the edge of the mounting groove structure 41 on the end surface of the fan blade 4 can easily extend into the clamping groove structure 15.

[0069] The surface of the rounded structure 133 is smoother and has less friction than that of an ordinary structure with edges, so that the obstruction effect is smaller when the first connecting structure 1 moves horizontally, thereby making it easier for the first connecting structure 1 to withdraw from or slide into the installation slot structure 15.

[0070] like Figure 5 As shown, the disc body structure 2 is provided with a second connection structure 21 , and the second connection structure 21 is a threaded hole structure. The disc body structure 2 is suitable for being threadedly connected to the motor shaft 31 of the motor 3 through the threaded hole structure.

[0071] The second connecting structure 21 can be a through hole or a blind hole. The second connecting structure 21 can be connected to the motor shaft 31 of the motor 3 by welding or threaded connection. Preferably, in this embodiment, the second connecting structure 21 is a threaded hole structure and is threadedly connected to the motor shaft 31 of the motor 3. The threaded hole structure is easy to manufacture, simple in structure, highly versatile, and easy to install, thereby saving costs and improving installation efficiency.

[0072] An embodiment of the present invention further provides an air conditioner, comprising a motor 3 and a fan blade 4 and a chuck structure as described above, wherein the motor 3 and the fan blade 4 are connected via the chuck structure.

[0073] The advantages of the air conditioner and the above-mentioned chuck structure over the prior art are the same, which will not be repeated here.

[0074] like Figure 6 As shown, the motor shaft 31 of the motor 3 is provided with an external thread structure, the second connection structure 21 of the chuck structure is a threaded hole structure, the motor shaft 31 is threadedly connected with the chuck structure through the external thread structure and the threaded hole structure, and the locking direction of the motor shaft 31 and the chuck structure is opposite to the rotation direction of the fan blade 4. When the fan blade 4 rotates, the motor shaft 31 of the motor 3 and the chuck structure will not be disengaged, thereby improving the reliability of the connection between the motor 3 and the fan blade 4.

[0075] like Figure 6 and Figure 7 As shown, a limiting member 32 is provided on the motor shaft 31, and the limiting member 32 is suitable for axially positioning the chuck structure, thereby improving the axial positioning accuracy of the chuck structure.

[0076] like Figure 6 and Figure 7 As shown, the limiting member 32 is a flange, which is sleeved on the motor shaft and located at the end of the external thread structure away from the fan blade. The flange is suitable for limiting the movement of the disc structure of the chuck structure toward the motor.

[0077] The flange can be round, square or a combination of various shapes, and the size of the flange can be designed as needed. Preferably, the flange in this embodiment is a round flange, and the distances from each point on the edge of the round flange to the center are equal, so that it is not easy to deviate when the motor shaft 31 of the motor 3 rotates, and a flange with a diameter greater than the diameter of the second connecting structure 21 is selected, so that the chuck structure can be better positioned in the axial direction. The flange is easy to manufacture and simple to install, thereby saving costs and improving installation efficiency.

[0078] like Figure 8 As shown, the end surface of the fan blade 4 facing the motor 3 is provided with a mounting groove structure 41, the main body 11 and the deformation part 12 of the chuck structure are inserted into the mounting groove structure 41, and the edge of the mounting groove structure 41 is clamped into the clamping groove structure 15 of the chuck structure.

[0079] In this embodiment, the end surface material of the fan blade 4 and the motor shaft 31 of the motor 3 is rubber, the width of the mounting groove structure 41 on the end surface of the fan blade 4 is 7 mm, and the width of the elastic buckle on the chuck structure is 8 mm. After normal assembly, the elastic buckle and the mounting groove structure 41 on the end surface of the fan blade 4 are interference fit, and the single-sided interference amount of each elastic buckle is 0.5 mm. In this way, when the fan blade 4 rotates, its axial positioning will be more reliable.

[0080] The edge of the mounting groove structure 41 is inserted into the clamping groove structure 15 of the clamping disc structure, thereby improving the firmness of the clamping connection between the clamping disc structure and the fan blade 4 .

[0081] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A chuck structure for connecting a motor (3) and a fan blade (4), characterized in that: The invention comprises a disk structure (2) and a first connection structure (1); the disk structure (2) is detachably connected to the motor (3); one end of the disk structure (2) facing the fan blade (4) is fixedly connected to the first connection structure (1), and the first connection structure (1) is suitable for being snapped onto the end surface of the fan blade (4); the first connection structure (1) comprises an elastic buckle, and the end surface of the fan blade (4) is provided with a mounting groove structure (41), and the elastic buckle is suitable for passing through the mounting groove structure (41) and snapping onto the end surface of the fan blade (4); the elastic buckle comprises a main body (11) and a deformation part (12); one end of the main body (11) is fixedly connected to the disk structure (2), and the other end is fixedly connected to the deformation part (12). The deformable portion (12) is adapted to be deformed so that the main body (11) and the deformable portion (12) pass through the end face of the fan blade (4) and are snap-fitted into the mounting groove structure (41) on the end face of the fan blade (4); the first connection structure (1) further comprises a guide rib (13), the guide rib (13) being arranged on a side of the deformable portion (12) away from the main body (11); the deformable portion (12) is provided with a folding edge structure (14), the folding edge structure (14) being folded towards a side away from the main body (11) and forming a slot structure (15) with the guide rib (13), the slot structure (15) being adapted to be snapped into the edge of the mounting groove structure (41) on the end face of the fan blade (4).

2. The chuck structure according to claim 1, characterized in that: The bending angle of the folding structure (14) ranges from 130° to 140°.

3. The chuck structure according to claim 1, characterized in that: The guide rib (13) comprises a first inclined surface structure (131) and a second inclined surface structure (132); the second inclined surface structure (132) is arranged on a side of the guide rib (13) facing the motor (3); and an inclination angle of the second inclined surface structure (132) is greater than an inclination angle of the first inclined surface structure (131).

4. The chuck structure according to claim 1, characterized in that: A rounded corner structure (133) is also provided at one end of the guide rib (13) away from the deformation portion (12).

5. The chuck structure according to claim 1, characterized in that: The disc body structure (2) is provided with a second connection structure (21), the second connection structure (21) being a threaded hole structure, and the disc body structure (2) is suitable for being threadedly connected to the motor shaft (31) of the motor (3) through the threaded hole structure.

6. An air conditioner, characterized in that: It comprises a motor (3) and a fan blade (4) and a chuck structure as claimed in any one of claims 1 to 5, wherein the motor (3) and the fan blade (4) are connected via the chuck structure.

7. The air conditioner according to claim 6, characterized in that: An external thread structure is provided on the motor shaft (31) of the motor (3); the second connection structure (21) of the chuck structure is a threaded hole structure; the motor shaft (31) is threadedly connected to the chuck structure via the external thread structure and the threaded hole structure; and the locking direction of the motor shaft (31) and the chuck structure is opposite to the rotation direction of the fan blade (4).

8. The air conditioner according to claim 7, characterized in that: The motor shaft (31) is provided with a limiting member (32), and the limiting member (32) is suitable for axially positioning the chuck structure.

9. The air conditioner according to claim 8, characterized in that: The limiting member (32) is a flange, which is sleeved on the motor shaft (31) and is located at an end of the external thread structure away from the fan blade (4). The flange is suitable for limiting the movement of the disc structure (2) of the chuck structure toward the motor (3).

10. The air conditioner according to claim 9, characterized in that: The end surface of the fan blade (4) facing the motor (3) is provided with a mounting groove structure (41); the main body (11) and the deformation part (12) of the chuck structure are inserted into the mounting groove structure (41), and the edge of the mounting groove structure (41) is inserted into the clamping groove structure (15) of the chuck structure.

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