Folding fan

Abstract

The embodiment of the utility model provides a folding fan. The folding fan comprises a fan blade group which comprises a first fan blade and a second fan blade, and the first fan blade and the second fan blade are both provided with mounting holes; the connecting shaft assembly penetrates through the mounting hole; the first fan blade is further provided with a first limiting hole and a first protrusion, and the first limiting hole and the first protrusion are both located below the mounting hole of the first fan blade. The second fan blade is further provided with a second limiting hole and a second protrusion, and the second limiting hole and the second protrusion are both located below the mounting hole of the second fan blade. The first limiting holes are used for being matched with the second protrusions of the second fan blades in the same fan blade set so as to limit the rotation range of the first fan blades relative to the second fan blades in the same fan blade set. The second limiting hole is used for being matched with the first protrusion of the first fan blade in the adjacent fan blade set so as to limit the rotation range of the second fan blade relative to the first fan blade in the adjacent fan blade set.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of fans, and more specifically, to a folding fan. Background Art

[0002] Handmade folding fans are more of a cultural and creative product, and more and more consumers are willing to collect folding fans.

[0003] Existing fans are usually formed by using a wooden skeleton and bonding with paper, and any pattern can be drawn on the paper surface. The disadvantages of this kind of fan are that the paper cannot be opened and closed repeatedly for many times and is easy to be deglued. This type of fan with the same fabric structure also has the risk of degluing; and there are many processes for making this fan, and the labor cost is also high.

[0004] There is also an existing fan which is a wooden fan with a hollow structure on its surface. Transparent silk threads are used to limit the position between wooden pieces. Threading the transparent silk threads is also a very time-consuming task. In addition, usually after the fan is opened and closed several times, the distance between each piece after unfolding changes severely, or the rope breaks, seriously affecting the practicality and aesthetics.

[0005] In view of this, a new technical solution is needed to solve the above technical problems. Summary of the Utility Model

[0006] The purpose of the present application is to provide a new technical solution for folding fans.

[0007] The present application provides a folding fan. The folding fan includes:

[0008] A fan blade group, including a first fan blade and a second fan blade, and both the first fan blade and the second fan blade are provided with mounting holes;

[0009] A connecting shaft assembly, and the connecting shaft assembly penetrates through the mounting holes;

[0010] Wherein the first fan blade is further provided with a first limiting hole and a first protrusion, and both the first limiting hole and the first protrusion are located below the mounting hole of the first fan blade;

[0011] The second fan blade is further provided with a second limiting hole and a second protrusion, and both the second limiting hole and the second protrusion are located below the mounting hole of the second fan blade;

[0012] The first limiting hole is used to cooperate with the second protrusion of the second fan blade in the same fan blade group to limit the rotation range of the first fan blade relative to the second fan blade in the same fan blade group;

[0013] The second limiting hole is used to cooperate with the first protrusion of the first fan blade in the adjacent fan blade group to limit the rotation range of the second fan blade relative to the first fan blade in the adjacent fan blade group.

[0014] Optionally, both the first limiting hole and the second limiting hole are waist-shaped holes extending along the width direction of the fan blade.

[0015] Optionally, the connecting shaft assembly includes a shaft body and a limiting portion, and the limiting portion is arranged at one end of the shaft body.

[0016] Optionally, the limiting portion is a snap ring.

[0017] Optionally, the folding fan further includes a first sealing plate, and the installation hole is also formed on the first sealing plate, and the connecting shaft assembly penetrates through the installation hole of the first sealing plate;

[0018] The first sealing plate is arranged adjacent to the first fan blade at the uppermost layer in the fan blade group, and a concave portion is arranged on the surface of the first sealing plate close to the fan blade group, and the concave portion is used to cooperate with the first protrusion of the first fan blade adjacent to it.

[0019] Optionally, the folding fan further includes a second sealing plate, and the installation hole is also formed on the second sealing plate, and the connecting shaft assembly penetrates through the installation hole of the second sealing plate;

[0020] The second sealing plate is arranged adjacent to the second fan blade at the lowermost layer in the fan blade group, and a protrusion is arranged on the second sealing plate, and the protrusion is used to cooperate with the second limiting hole of the second fan blade adjacent to it.

[0021] Optionally, the thickness of the first sealing plate is greater than the thickness of the fan blades in the fan blade group.

[0022] Optionally, the thickness of the second sealing plate is greater than the thickness of the fan blades in the fan blade group.

[0023] Optionally, the thickness range of the first fan blade and the second fan blade is: 0.5 mm to 2 mm.

[0024] Optionally, the height of the first protrusion is equal to the thickness of the second fan blade, and the height of the second protrusion is equal to the thickness of the first fan blade.

[0025] According to the embodiments of the present application, a folding fan is provided. Through the cooperation of the installation hole and the connecting shaft assembly, and the cooperation of the limiting hole and the protrusion, the fan blades can be quickly assembled together to form a folding fan. In addition, the opening or folding angle of the fan blades can be adjusted through the cooperation of the limiting hole and the protrusion. When a user uses the folding fan, the fan blades can be better controlled to keep the opening angle of each fan blade consistent. In addition, for the folding fan assembled by adopting this cooperation method, the folding fan has better durability.

[0026] Other features and advantages of the present specification will become apparent from the following detailed description of the exemplary embodiments of the present specification with reference to the accompanying drawings. Description of the Drawings

[0027] The drawings incorporated in and constituting a part of this specification illustrate embodiments of the present specification and, together with the description thereof, are used to explain the principles of the present specification.

[0028] Figure 1 The structural diagram of the first fan blade provided by the embodiment of the present application is shown.

[0029] Figure 2 The structural diagram of the second fan blade provided by the embodiment of the present application is shown.

[0030] Figure 3 The structural diagram of the connecting shaft assembly provided by the embodiment of the present application is shown.

[0031] Figure 4 The structural diagram of the limiting portion of the connecting shaft assembly provided by the embodiment of the present application is shown.

[0032] Figure 5 The structural diagram of the first sealing plate, the second sealing plate and the fan blade group assembled together provided by the embodiment of the present application is shown.

[0033] Figure 6 The cross-sectional view of the first sealing plate, the second sealing plate and the fan blade group assembled together provided by the embodiment of the present application is shown.

[0034] Description of the Reference Numerals:

[0035] 1. Fan blade group; 10. First fan blade; 11. Second fan blade; 12. Mounting hole;

[0036] 101. First limiting hole; 102. First protrusion; 111. Second limiting hole; 112. Second protrusion;

[0037] 2. Connecting shaft assembly; 20. Shaft body; 21. Limiting portion;

[0038] 3. First sealing plate; 30. Concave portion;

[0039] 4. Second sealing plate; 40. Protrusion portion. Detailed Description of the Embodiments

[0040] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements, numerical expressions and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0041] The following description of at least one exemplary embodiment is merely illustrative and in no way restrictive of the present application or its application or use.

[0042] Technologies and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies and devices should be regarded as part of the specification.

[0043] In all examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

[0044] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof in subsequent figures is not required.

[0045] An embodiment of the present application provides a folding fan. Referring to Figures 1 - 6 , the folding fan includes: a fan blade group 1, including a first fan blade 10 and a second fan blade 11, both the first fan blade 10 and the second fan blade 11 are provided with mounting holes 12;

[0046] A connecting shaft assembly 2, the connecting shaft assembly 2 passes through the mounting holes 12;

[0047] Wherein the first fan blade 10 is further provided with a first limiting hole 101 and a first protrusion 102, both the first limiting hole 101 and the first protrusion 102 are located below the mounting hole 12 of the first fan blade 10;

[0048] The second fan blade 11 is further provided with a second limiting hole 111 and a second protrusion 112, both the second limiting hole 111 and the second protrusion 112 are located below the mounting hole 12 of the second fan blade 11;

[0049] The first limiting hole 101 is used to cooperate with the second protrusion 112 of the second fan blade 11 in the same fan blade group 1 to limit the rotation range of the first fan blade 10 relative to the second fan blade 11 in the same fan blade group 1;

[0050] The second limiting hole 111 is used to cooperate with the first protrusion 102 of the first fan blade 10 in the adjacent fan blade group 1 to limit the rotation range of the second fan blade 11 relative to the first fan blade 10 in the adjacent fan blade group 1.

[0051] In an embodiment of the present application, a folding fan is provided. The folding fan includes a plurality of stacked fan blade groups 1. The fan blade group 1 includes a first fan blade 10 and a second fan blade 11. When a plurality of fan blade groups 1 are stacked together, the first fan blade 10 and the second fan blade 11 are arranged adjacent to each other, and the same type of fan blades are arranged at intervals. For example, the two first fan blades 10 in two adjacent fan blade groups 1 are arranged at intervals, and the two second fan blades 11 in two adjacent fan blade groups 1 are also arranged at intervals.

[0052] Both the first fan blade 10 and the second fan blade 11 are provided with mounting holes 12. A connecting shaft assembly 2 passes through the mounting holes 12 to assemble a plurality of fan blade groups 1 together. Specifically, the connecting shaft assembly 2 passes through the mounting holes 12 on the fan blades, tightly connecting a plurality of fan blades together to form a whole. This connection method ensures that the fan blades can maintain a relatively stable positional relationship during the opening and closing processes. In addition, the connecting shaft assembly 2 provides the necessary supporting force for the fan blades, so that the fan blades are not easily deformed or damaged when subjected to external forces. At the same time, it also ensures the flatness and aesthetics of the fan blades in the unfolded state.

[0053] Exemplarily, the mounting holes 12 provided on the fan blades are located in the lower part of the fan blades.

[0054] It should be emphasized that the first fan blade 10 is further provided with a first limiting hole 101 and a first protrusion 102, and the second fan blade 11 is further provided with a second limiting hole 111 and a second protrusion 112. The first limiting hole 101 and the first protrusion 102 are closer to the lower end of the first fan blade 10 relative to the mounting hole 12 of the first fan blade 10, and the second limiting hole 111 and the second protrusion 112 are closer to the lower end of the second fan blade 11 relative to the mounting hole 12 of the second fan blade 11. Through the cooperation of the limiting holes and the protrusions, the relative rotation range between the fan blades is effectively controlled.

[0055] When a user uses the fan, they often hold the lower end of the folding fan. By arranging the limiting holes and protrusions of the fan blades below the mounting hole 12, the user can more conveniently open or close the folding fan, ensuring the smoothness of the folding fan during use.

[0056] Since the limiting holes and the protrusions are located at the lower end of the fan blades, the cooperation of the limiting holes and the protrusions can more effectively limit the shaking of the fan blades during rotation, ensuring that the fan blades remain stable during movement. In addition, this design helps the fan blades to precisely stop at a specific angle, enabling the user to better use and control the folding fan.

[0057] The first limiting hole 101 of the first fan blade 10 is used to cooperate with the second protrusion 112 of the second fan blade 11 in the same group of fan blade groups 1 to limit the rotation range of the first fan blade 10 relative to the second fan blade 11 in the same group of fan blade groups 1. When the first fan blade 10 and the second fan blade 11 are assembled together, the second protrusion 112 of the second fan blade 11 will be inserted into the first limiting hole 101 of the first fan blade 10. This cooperation method ensures the relative position stability between the two and allows relative movement within a certain range. Through the cooperation of the first limiting hole 101 and the second protrusion 112, the rotation range of the first fan blade 10 relative to the second fan blade 11 can be precisely controlled.

[0058] The second limiting hole 111 of the second fan blade 11 is used to cooperate with the first protrusion 102 of the first fan blade 10 in the adjacent fan blade group 1 to limit the rotation range of the second fan blade 11 relative to the first fan blade 10 in the adjacent fan blade group 1. When the current second fan blade 11 is cooperated with the first fan blade 10 in the adjacent fan blade group 1, the rotation range of the second fan blade 11 relative to the first fan blade 10 can be precisely controlled.

[0059] Exemplarily, the first fan blade 10 and the second fan blade 11 are cooperated together by the way of mutual nesting of the limiting holes and the protrusions to limit the maximum unfolding angle of the fan blades. Optionally, the maximum unfolding angle of the fan blades is related to the size of the limiting holes, and the unfolding angle of the fan blades can be limited according to the usage requirements. In addition, the unfolding angle of the fan blades is related to the number of the fan blades. If the unfolding angle of the fan blades is larger, then the fan blades need to be designed wider correspondingly. If the unfolding angle of the fan blades is smaller, then the width of each fan blade can be designed relatively narrower.

[0060] Therefore, in the embodiment of the present application, a folding fan is provided. The folding fan can quickly assemble the fan blades together to form a folding fan through the cooperation of the mounting holes 12 and the connecting shaft assembly 2, and the cooperation of the limiting holes and the protrusions. In addition, the opening or folding angle of the fan blades can be adjusted through the cooperation of the limiting holes and the protrusions. When the user uses the folding fan, the user can better control the fan blades so that the opening angle of each fan blade remains consistent. In addition, for the folding fan assembled by this cooperation method, the folding fan has better durability.

[0061] Optionally, due to the particularity of the folding fan assembly method, the user can purchase individual fan blades according to their preferences and then assemble them into a folding fan.

[0062] Optionally, the first fan blade 10 and the second fan blade 11 can be designed by 3D printing, so that the folding fan is better suitable for tourism cultural and creative products, gifts, etc.

[0063] Optionally, words or patterns can be pre-designed on the fan blades, which can be hollowed-out graphics and texts, or sunken graphics and texts, and both the colors and the texts can be defined by oneself.

[0064] Optionally, the patterns and texts are formed by, including but not limited to, silk screen printing, water transfer printing, UB printing, pigment hand painting, electroplating spraying, laser engraving, etc.

[0065] In one embodiment, referring to Figure 1 and Figure 2 , both the first limiting hole 101 and the second limiting hole 111 are waist-shaped holes extending along the width direction of the fan blade.

[0066] In this embodiment, both the first limiting hole 101 and the second limiting hole 111 are waist-shaped holes. A waist-shaped hole is a long strip-shaped hole, and its length direction extends along the width direction of the fan blade. This design makes the hole have a certain length in the width direction of the fan blade, while being relatively short in other directions. Since the waist-shaped hole has a certain length in the width direction, it allows the protrusion cooperating with it to adjust its position within a certain range to achieve the rotation of the fan blade.

[0067] It should be noted that the first limiting hole 101 cooperates with the second protrusion 112. The first limiting hole 101 is sleeved outside the second protrusion 112. The outer diameter dimension of the second protrusion 112 is smaller than the inner diameter dimension of the first limiting hole 101, so that the first fan blade 10 provided with the first limiting hole 101 can rotate relative to the second fan blade 11 provided with the second protrusion 112.

[0068] The second limiting hole 111 cooperates with the first protrusion 102. The second limiting hole 111 is sleeved outside the first protrusion 102. The outer diameter dimension of the first protrusion 102 is smaller than the inner diameter dimension of the second limiting hole 111, so that the second fan blade 11 provided with the second limiting hole 111 can rotate relative to the first fan blade 10 provided with the first protrusion 102.

[0069] In one embodiment, referring to 3 - Figure 5 , the connecting shaft assembly 2 includes a shaft body 20 and a limiting portion 21, and the limiting portion 21 is provided at one end of the shaft body 20.

[0070] In this embodiment, the connecting shaft assembly 2 includes a shaft body 20 and a limiting portion 21. The shaft body 20 is the main part of the connecting shaft assembly 2 and is usually cylindrical, used to connect multiple fan blades. In the case of using a folding fan, each fan blade can rotate relative to the shaft body 20.

[0071] Exemplarily, the cross-section of the shaft body 20 is a T-shaped structure. The upper end portion of this T-shaped structure restricts the movement of the component extending axially of the T-shaped structure in the axial direction of the mounting hole 12, avoiding the separation of the shaft body 20 from the fan blade.

[0072] In this embodiment, the limiting part 21 is arranged at one end of the shaft body 20 to limit the movement of the shaft body 20 in a certain direction, preventing the shaft body 20 from detaching from the fan blades. Exemplarily, the limiting part 21 can be a raised ring, a thread, a pin or other forms of structures.

[0073] It should be noted that the limiting part 21 and the shaft body 20 are detachably connected. When it is necessary to replace a certain fan blade of the folding fan, the limiting part 21 can be detached from the shaft body 20 to facilitate the replacement of a certain fan blade.

[0074] In one embodiment, referring to Figure 3 and Figure 4 , the limiting part 21 is a snap ring.

[0075] In this embodiment, the structure of the limiting part 21 is a snap ring. The inner ring of the snap ring can be designed with a groove to form a tight fit with the shaft body 20. Exemplarily, the snap ring is a semi-snap ring structure to facilitate installation at one end of the shaft body 20 and also to facilitate detachment from the shaft body 20.

[0076] Optionally, the limiting part 21 can be an elastic snap ring to facilitate installation at one end of the shaft body 20 and also to facilitate detachment from the shaft body 20.

[0077] In one embodiment, referring to Figure 5 and Figure 6 , the folding fan further includes a first sealing plate 3. The first sealing plate 3 is also provided with the installation hole 12, and the connecting shaft assembly 2 passes through the installation hole 12 of the first sealing plate 3;

[0078] The first sealing plate 3 is arranged adjacent to the uppermost first fan blade 10 in the fan blade group 1. The surface of the first sealing plate 3 close to the fan blade group 1 is provided with a recessed part 30, and the recessed part 30 is used to cooperate with the first protrusion 102 of the adjacent first fan blade 10.

[0079] In this embodiment, the folding fan further includes a first sealing plate 3. The first sealing plate 3 is a component of the folding fan. The first sealing plate 3 is located at the uppermost layer of the fan blade group 1 and is adjacent to the uppermost first fan blade 10 in the fan blade group 1.

[0080] The first sealing plate 3 is provided with an installation hole 12, which is aligned with the installation hole 12 in the fan blade group 1 and allows the connecting shaft assembly 2 to pass through it, thereby connecting the first sealing plate 3 and the fan blade group 1 together.

[0081] On the surface of the first sealing plate 3 close to the blade group 1, a recess 30 is provided. This recess 30 is designed to cooperate with the first protrusion 102 on the adjacent first blade 10. The first protrusion 102 of the first blade 10 cooperates with the recess 30, thereby realizing the stable connection and smooth movement between the blade group 1 and the first sealing plate 3.

[0082] In this embodiment, the cooperative design of the recess 30 and the first protrusion 102 enables the blade group 1 to maintain the correct positional relationship during the folding and unfolding processes, avoiding misalignment or friction between the blades. Additionally, by providing the first sealing plate 3 on the folding fan, the first sealing plate 3 can cover the nested structure provided on the adjacent first blade 10, greatly improving the aesthetics of the folding fan.

[0083] In one embodiment, referring to Figure 5 and Figure 6 , the folding fan further includes a second sealing plate 4. The second sealing plate 4 is also provided with the mounting hole 12, and the connecting shaft assembly 2 passes through the mounting hole 12 of the second sealing plate 4;

[0084] The second sealing plate 4 is disposed adjacent to the lowermost second blade 11 in the blade group 1. The second sealing plate 4 is provided with a protrusion 40, and the protrusion 40 is used to cooperate with the second limiting hole 111 of the adjacent second blade 11.

[0085] In this embodiment, the folding fan further includes a second sealing plate 4. The second sealing plate 4 is an integral part of the folding fan. The second sealing plate 4 is located at the lowermost layer of the blade group 1 and is adjacent to the lowermost second blade 11 in the blade group 1.

[0086] The second sealing plate 4 is provided with a mounting hole 12, which is aligned with the mounting hole 12 in the blade group 1, allowing the connecting shaft assembly 2 to pass through it, thereby connecting the second sealing plate 4 and the blade group 1 together.

[0087] On the surface of the second sealing plate 4 close to the blade group 1, a protrusion 40 is provided. This protrusion 40 is designed to cooperate with the second limiting hole 111 on the adjacent second blade 11. When the protrusion 40 and the second limiting hole 111 cooperate, the stable connection and smooth movement between the blade group 1 and the first sealing plate 3 are realized.

[0088] In this embodiment, the cooperative design of the protrusion 40 and the second limiting hole 111 enables the blade group 1 to maintain the correct positional relationship during the folding and unfolding processes, ensuring that the blades can be smoothly unfolded or folded. Additionally, by providing the second sealing plate 4 on the folding fan, the second sealing plate 4 can cover the nested structure provided on the adjacent second blade 11, greatly improving the aesthetics of the folding fan.

[0089] In one embodiment, with reference to Figure 5 and Figure 6 , the thickness of the first sealing plate 3 is greater than the thickness of the fan blades in the fan blade group 1. And with reference to Figure 5 and Figure 6 , the thickness of the second sealing plate 4 is greater than the thickness of the fan blades in the fan blade group 1.

[0090] In this embodiment, the thickness of the sealing plate is greater than the thickness of the fan blade. As part of the folding fan structure, the greater thickness of the sealing plate can provide stronger support, which helps to keep the fan surface flat when the folding fan is unfolded; in addition, the thicker sealing plate is more resistant to deformation under external forces and can maintain the overall shape and structural integrity of the folding fan.

[0091] In one embodiment, the thickness range of the first fan blade 10 and the second fan blade 11 is: 0.5 mm to 2 mm. Preferably, the thickness of the first fan blade 10 and the second fan blade 11 can be 0.8 mm.

[0092] In this embodiment, the thickness range of the first fan blade 10 and the second fan blade 11 is set to 0.5 mm to 2 mm, which is to optimize the weight and feel as much as possible while maintaining the structural strength and durability of the folding fan, thereby enhancing the user experience.

[0093] It should be noted that the thicknesses of the first fan blade 10 and the second fan blade 11 can be the same, that is, the thickness of the first fan blade 10 is equal to the thickness of the second fan blade 11; or the thicknesses of the first fan blade 10 and the second fan blade 11 can be different, that is, the thickness of the first fan blade 10 is not equal to the thickness of the second fan blade 11. In addition, the thicknesses of the first fan blades 10 in different groups of fan blade groups 1 can be equal or not equal, and the thicknesses of the second fan blades 11 in different groups of fan blade groups 1 can be equal or not equal.

[0094] In one embodiment, the height of the first protrusion 102 is equal to the thickness of the second fan blade 11, and the height of the second protrusion 112 is equal to the thickness of the first fan blade 10.

[0095] In this embodiment, by defining the relationship between the thickness of the protrusions provided on the fan blades and the thickness of the fan blades that cooperate with the protrusions, it is ensured that the thickness of the protrusion part 40 matches the adjacent fan blades. When the folding fan is folded or unfolded, the protrusion part 40 cannot come out of the limiting hole, and the movement of the fan blades during the folding and unfolding process will be smoother, reducing the risk of jamming or misalignment.

[0096] In the above embodiments, the differences between the various embodiments are mainly described. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a more optimal embodiment. Considering the simplicity of the text, it will not be elaborated here.

[0097] Although some specific embodiments of the present application have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration purposes and not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A folding fan, characterized in that, Comprising: A group of fan blades (1), including a first fan blade (10) and a second fan blade (11), both the first fan blade (10) and the second fan blade (11) are provided with mounting holes (12); A connecting shaft assembly (2), the connecting shaft assembly (2) penetrates through the mounting holes (12); Wherein the first fan blade (10) is further provided with a first limiting hole (101) and a first protrusion (102), both the first limiting hole (101) and the first protrusion (102) are located below the mounting hole (12) of the first fan blade (10); The second fan blade (11) is further provided with a second limiting hole (111) and a second protrusion (112), both the second limiting hole (111) and the second protrusion (112) are located below the mounting hole (12) of the second fan blade (11); The first limiting hole (101) is used to cooperate with the second protrusion (112) of the second fan blade (11) in the same group of fan blade groups (1) to limit the rotation range of the first fan blade (10) relative to the second fan blade (11) in the same group of fan blade groups (1); The second limiting hole (111) is used to cooperate with the first protrusion (102) of the first fan blade (10) in the adjacent fan blade group (1) to limit the rotation range of the second fan blade (11) relative to the first fan blade (10) in the adjacent fan blade group (1).

2. The folding fan according to claim 1, characterized in that, Both the first limiting hole (101) and the second limiting hole (111) are waist-shaped holes extending along the width direction of the fan blade.

3. The folding fan according to claim 1, characterized in that, The connecting shaft assembly (2) includes a shaft body (20) and a limiting portion (21), and the limiting portion (21) is arranged at one end of the shaft body (20).

4. The folding fan according to claim 3, wherein The limiting portion (21) is a snap ring.

5. The folding fan according to claim 1, characterized in that, The folding fan further includes a first sealing plate (3), and the first sealing plate (3) is also provided with the mounting hole (12), and the connecting shaft assembly (2) penetrates through the mounting hole (12) of the first sealing plate (3); The first sealing plate (3) is arranged adjacent to the uppermost first fan blade (10) in the fan blade group (1), and a recessed portion (30) is arranged on the surface of the first sealing plate (3) close to the fan blade group (1), and the recessed portion (30) is used to cooperate with the first protrusion (102) of the adjacent first fan blade (10).

6. The folding fan according to claim 1, wherein The folding fan further includes a second sealing plate (4), and the second sealing plate (4) is also provided with the mounting hole (12), and the connecting shaft assembly (2) penetrates through the mounting hole (12) of the second sealing plate (4); The second sealing plate (4) is arranged adjacent to the lowermost second fan blade (11) in the fan blade group (1), and the second sealing plate (4) is provided with a protruding portion (40), and the protruding portion (40) is used to cooperate with the second limiting hole (111) of the adjacent second fan blade (11).

7. The folding fan according to claim 5, characterized in that, The thickness of the first sealing plate (3) is greater than the thickness of the fan blades in the fan blade group (1).

8. The folding fan according to claim 6, wherein, The thickness of the second sealing plate (4) is greater than the thickness of the fan blades in the fan blade group (1).

9. The folding fan according to claim 1, wherein, The thickness range of the first fan blade (10) and the second fan blade (11) is: 0.5 mm to 2 mm.

10. The folding fan according to claim 1, characterized in that, The height of the first protrusion (102) is equal to the thickness of the second fan blade (11), and the height of the second protrusion (112) is equal to the thickness of the first fan blade (10).

Images