Fan blade assembly and air blowing device

Abstract

The utility model discloses a fan blade assembly and a blowing device, and relates to the technical field of blowing equipment, the fan blade assembly comprises a mesh enclosure, fan blades and a buffer piece, and a protection space is formed in the mesh enclosure; the fan blade is arranged in the protection space, the fan blade comprises a mounting main body and a blade body, the blade body is connected to the peripheral side of the mounting main body, the fan blade is provided with a first end and a second end which are opposite to each other, and the net cover is provided with a rear net baffle which is arranged opposite to the second end in a spaced mode; and the buffer part is connected to the mounting main body and / or the mesh enclosure and is used for buffering the relative movement of the mounting main body and the mesh enclosure. According to the technical scheme, disassembly and assembly protection of the fan blade assembly is achieved, and the structural stability and reliability of the fan blade assembly are improved.

Description

Technical Field

[0001] This utility model relates to the field of air blowing equipment technology, and in particular to a fan blade assembly and an air blowing device. Background Technology

[0002] In related technologies, floor fans and other air-blowing devices can be assembled by disassembling and assembling the fan blade assembly as a whole on the fan, which helps to improve the assembly convenience of the air-blowing device.

[0003] However, during the dismantling of the fan blade assembly, the screen that separates from the fan is prone to shifting towards the fan blade, causing the fan blade to collide with the screen and produce a loud noise. This can also easily damage the fan blade and reduce the overall structural stability and reliability of the fan blade assembly. Utility Model Content

[0004] The main purpose of this utility model is to propose a fan blade assembly and a blowing device, which aims to achieve the disassembly and assembly protection of the fan blade assembly and improve the structural stability and reliability of the fan blade assembly.

[0005] To achieve the above objectives, the fan blade assembly proposed in this utility model includes a mesh cover, a fan blade, and a buffer. A protective space is formed inside the mesh cover. The fan blade is disposed within the protective space and includes a mounting body and blades. The blades are connected to the periphery of the mounting body and have opposing first and second ends. The mesh cover is provided with a rear mesh baffle that is spaced apart from and opposite to the second end. The buffer is connected to the mounting body and / or the mesh cover to buffer the relative movement between the mounting body and the mesh cover.

[0006] In one embodiment, the buffer includes a first buffer structure connected to the mounting body and protruding from the second end.

[0007] In one embodiment, the mounting body has a receiving cavity, the second end has a clearance opening communicating with the receiving cavity, the first buffer structure is fixedly disposed in the receiving cavity, and a portion of the first buffer structure extends out of the clearance opening.

[0008] In one embodiment, the mounting body includes a main body and a cover plate. The blade is connected to the outer periphery of the main body. The main body has a first end and a second end. The main body has the receiving cavity inside. The first end has an mounting port communicating with the receiving cavity. The cover plate is connected to the main body and abuts against and limits the first buffer structure.

[0009] In one embodiment, the first buffer structure has a limiting hole on the side facing the cover plate, and the cover plate has a limiting protrusion on its surface, the limiting protrusion being inserted into the limiting hole. And / or, the cover plate has a latching member that extends into the receiving cavity and latches onto the main body.

[0010] In one embodiment, the distance between the end face of the first buffer structure and the rear mesh baffle is defined as D1, where 1mm ≤ D1 ≤ 20mm.

[0011] In one embodiment, the buffer includes a second buffer structure connected to the rear mesh baffle and protruding from the surface of the rear mesh baffle facing the second end.

[0012] In one embodiment, the distance between the end face of the second buffer structure and the second end is defined as D2, where 1mm ≤ D2 ≤ 20mm.

[0013] In one embodiment, the buffer further includes a first buffer structure, which is connected to the mounting body and is disposed opposite to the second buffer structure. The distance between the first buffer structure and the second buffer structure is defined as D3, where 1mm≤D3≤20mm.

[0014] In one embodiment, the mesh cover includes a front mesh cover and a rear mesh cover, the front mesh cover and the rear mesh cover are connected to form the protective space, and the rear mesh cover is provided with the rear mesh baffle.

[0015] In one embodiment, the fan blade further includes a magnetic element connected to the mounting body for magnetically engaging with the shaft of the drive device.

[0016] In one embodiment, the mounting body includes a main body and a cover plate. The main body has a first end and a second end. The first end is provided with a receiving groove. The magnetic component is disposed in the receiving groove. The cover plate is connected to the main body and abuts against and limits the magnetic component.

[0017] In one embodiment, a limiting block is provided on the periphery of the mounting body, and the limiting block and the rear mesh baffle are arranged opposite each other at intervals, with the rear mesh baffle located between the fan blade and the limiting block.

[0018] This utility model also proposes a blower device, which includes a drive device and a fan blade assembly, wherein the fan blade assembly is the aforementioned fan blade assembly, and the fan blade assembly is connected to the drive device.

[0019] The technical solution of this utility model involves setting a buffer between the mounting body of the fan blade and the mesh cover. The buffer can be positioned at the second end of the mounting body, and after the fan blade assembly is assembled in the blowing device, the buffer is spaced apart from the rear mesh baffle, so that when the mesh cover and the fan blade move relative to each other, the buffer can first abut against the rear mesh baffle. Alternatively, the buffer can be positioned on the side of the rear mesh baffle facing the second end, and after the fan blade assembly is assembled in the blowing device, the buffer is spaced apart from the second end, so that when the mesh cover and the fan blade move relative to each other, the buffer can first abut against the second end. Or, buffers can be set on both the second end and the side of the rear mesh baffle facing the second end, and after the fan blade assembly is assembled in the blowing device, the opposing buffers are spaced apart from the second end and the rear mesh baffle, respectively, so that when the mesh cover and the fan blade move relative to each other, the buffers can first abut against the second end. Furthermore, under the buffering effect of the buffer, the elastic effect of the buffer can reduce the interaction force between the mesh and the blade. At the same time, the friction of the buffer can be used to quickly stop the rotation of the blade, which can better reduce the impact force on the blade during the assembly and disassembly of the mesh. This helps to avoid damage to the blade, reduce safety hazards during the assembly and disassembly of the fan blade assembly, and effectively improve the structural reliability and practicality of the fan blade assembly. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A cross-sectional view of an embodiment of the blower provided by this utility model;

[0022] Figure 2 for Figure 1 A partial enlarged view of the first embodiment at point A in the middle;

[0023] Figure 3 for Figure 1 A partial enlarged view of the second embodiment at point A in the middle;

[0024] Figure 4 for Figure 1 A partial enlarged view of the third embodiment at point A in the middle;

[0025] Figure 5 A partial cross-sectional view of an embodiment of the fan blade assembly provided by this utility model;

[0026] Figure 6 A schematic diagram of the structure of an embodiment of the fan blade assembly provided by this utility model;

[0027] Figure 7 An exploded view of an embodiment of the fan blade assembly provided by this utility model;

[0028] Figure 8 An exploded view of the structure of an embodiment of the fan blade assembly provided by this utility model.

[0029] Explanation of icon numbers:

[0030] 500. Blowing device; 100. Fan blade assembly; 10. Net cover; 10a. Protective space; 11. Front net cover; 13. Rear net cover; 131. Rear net baffle; 30. Fan blade; 31. Mounting body; 311. Main body; 3111. First end; 3113. Second end; 3115. Receiving cavity; 3117. Receiving groove; 3119. Limiting baffle; 313. Cover plate; 3131. Limiting protrusion; 3133. Fastener; 33. Blade; 35. Magnetic component; 50. Buffer component; 51. First buffer structure; 511. Limiting hole; 53. Second buffer structure; 200. Drive device; 20. Rotating shaft.

[0031] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0033] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0034] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0035] In related technologies, floor fans and other air-blowing devices can be assembled by disassembling and reassembling the fan blade assembly as a whole on the fan, which helps to improve the ease of assembly. However, during the disassembly of the fan blade assembly, the mesh cover separated from the fan is prone to shifting towards the fan blades, causing the fan blades to collide with the mesh cover, resulting in significant abnormal noise and damage to the fan blades, thus reducing the structural stability and reliability of the fan blade assembly. To address the above problems, this utility model proposes a fan blade assembly 100.

[0036] Please see Figures 1 to 6 In one embodiment of the present invention, the fan blade assembly 100 includes a mesh cover 10, a fan blade 30, and a buffer member 50. A protective space 10a is formed inside the mesh cover 10. The fan blade 30 is disposed in the protective space 10a. The fan blade 30 includes a mounting body 31 and a blade 33. The blade 33 is connected to the periphery of the mounting body 31. The fan blade 30 has a first end 3111 and a second end 3113 that are opposite to each other. The mesh cover 10 is provided with a rear mesh baffle 131 that is spaced apart from the second end 3113. The buffer member 50 is connected to the mounting body 31 and / or the mesh cover 10 to buffer the relative movement between the mounting body 31 and the mesh cover 10.

[0037] It is understood that the blower 500 may include, but is not limited to, floor fans, table fans, cooling fans, etc. It can be connected to the fan blade assembly 100 through a drive device 200 such as a fan, and the drive device 200 drives the fan blade assembly 100 to rotate, so as to achieve stable blowing operation of the blower 500.

[0038] The drive unit 200 can be a fan. In this case, the fan shaft 20 can pass through the mesh cover 10 and connect with the mounting body 31 of the fan blade 30, so that the drive unit 200 drives the fan blade 30 to rotate synchronously by driving the shaft 20 to blow air, ensuring the stable operation of the blowing device 500. The fan blade assembly 100 can connect the rear mesh baffle 131 of the mesh cover 10 to the fan on the side facing away from the mounting body 31. The rear mesh baffle 131 can be fastened to the side of the fan using bolts, screws or other fasteners, or the rear mesh baffle 131 and the fan can be equipped with a snap-fit ​​structure to facilitate the installation and removal of the rear mesh baffle 131 and the fan. This application does not limit the connection method between the mesh cover 10 and the fan, as long as a stable connection between the mesh cover 10 and the fan can be achieved.

[0039] At this time, a through hole can be provided on the rear mesh baffle 131 of the mesh cover 10, so that the drive shaft of the fan can pass through the through hole and connect with the mounting body 31 of the fan blade 30, or a part of the structure of the mounting body 31 can extend out of the through hole and connect with the rotating shaft 20. The fan shaft 20 can be inserted into the mounting body 31. By setting a magnetic attraction structure between the end of the fan shaft 20 and the mounting body 31, the mounting body 31 can be fixedly mounted on the shaft 20 along the axial direction using magnetic attraction, which facilitates the easy assembly and disassembly of the fan blade 30 and the shaft 20. Alternatively, a protrusion or other structure can be set on the inner wall surface of the protective space 10a opposite to the rear mesh baffle 131 to rotate and abut against the first end 3111 of the mounting body 31. The protrusion is set on the axial direction of the shaft 20 so that the fan blade 30 can be sleeved on the shaft 20. The protrusion in the mesh cover 10 limits the axial direction of the fan blade 30, ensuring the stable rotation of the fan blade 30 driven by the shaft 20, which also facilitates the easy assembly and disassembly of the fan blade 30 and the shaft 20. Furthermore, by using magnetic attraction or by axially limiting the fan blades 30 within the protective space 10a, the fan blades 30 can be axially fitted onto the rotating shaft 20. This allows the fan blades 30 to detach from the rotating shaft 20 when the fan is removed from the fan, as the fan blades 10 can be pulled outward along the axial direction of the rotating shaft 20. This enables the fan blade assembly 100 to be disassembled from the drive device 200, facilitating a more convenient disassembly and assembly method between the fan blade assembly 100 and the drive device 200, and further improving the ease of disassembly and assembly of the blower 500 and the production assembly efficiency.

[0040] Of course, there are many other ways to connect the fan blade 30 and the fan shaft 20. This application does not limit this, as long as a stable connection between the fan blade 30 and the fan shaft 20 can be achieved.

[0041] When the fan blade assembly 100 is first removed from the drive device 200, the mounting body 31 of the fan blade 30 can remain connected to the rotating shaft 20. The screen 10 is easily displaced from the drive device 200 under the action of external force, which can easily cause the screen 10 to collide with the fan blade 30 in the protective space 10a and cause certain abnormal noises. It can also easily cause the fan blade 30 to be damaged, affecting the overall disassembly and assembly stability and reliability of the fan blade assembly 100.

[0042] A buffer 50 is provided between the second end 3113 of the mounting body 31 and the rear mesh baffle 131 of the mesh cover 10. The buffer 50 can be a structure with a certain elasticity, such as soft rubber, rubber, or a spring. The buffer 50 can be protruding from the second end 3113 of the mounting body 31, with the end of the buffer 50 spaced a certain distance from the rear mesh baffle 131 to avoid the rotation of the fan blade 30; or it can be protruding from the surface of the rear mesh baffle 131 facing the second end 3113, with the end of the buffer 50 spaced a certain distance from the second end 3113 to avoid the rotation of the fan blade 30; or the second end 3113 and the rear mesh baffle 10 can be spaced a certain distance apart. Each baffle 131 is provided with a raised buffer 50. At this time, the buffer 50 on the second end 3113 and the buffer 50 on the rear baffle 131 can be set at a certain distance from each other to prevent the fan blade 30 from rotating in the protective space 10a. Furthermore, under the action of the buffer 50, after the screen 10 is removed from the fan, the buffer 50 can be used to abut against and buffer the relative movement between the fan blade 30 and the screen 10, which helps to reduce the relative impact between the screen 10 and the fan blade 30, and avoids the fan blade 30 being crushed by excessive instantaneous impact force, thereby improving the protective performance and structural reliability of the fan blade assembly 100 during disassembly and assembly.

[0043] Furthermore, when the drive unit 200 uses a DC motor or other drive source, the fan blade 30 may still be rotating at high speed when the drive unit 200 is powered off. Because the fan blade 30 is subjected to the reaction force of the airflow during rotation, it experiences a force towards the drive unit 200. If the guard 10 is removed at this time, it can easily cause relative movement between the guard 10 and the fan blade 30. Therefore, a buffer 50 is protruding from the rear guard plate 13 of the guard 10 and / or the mounting body 31 of the fan blade 30. Under the buffering action of the buffer 50, the fan blade 30 can be quickly stopped from rotating after the guard 10 is removed due to the contact friction of the buffer 50, preventing the fan blade 30 from colliding with the guard 10 during rotation and causing greater damage. This also reduces safety hazards during the disassembly and assembly of the fan blade assembly 100, further improving the structural stability and reliability of the fan blade assembly 100.

[0044] The technical solution of this utility model is to provide a buffer member 50 between the mounting body 31 of the fan blade 30 and the mesh cover 10. The buffer member 50 can be positioned protruding from the second end 3113 of the mounting body 31, and after the fan blade assembly 100 is assembled in the blowing device 500, the buffer member 50 and the rear mesh baffle 131 are spaced apart, so that when the mesh cover 10 and the fan blade 30 move relative to each other, the buffer member 50 can first abut against the rear mesh baffle 131; alternatively, the buffer member 50 can be positioned protruding from the side of the rear mesh baffle 131 facing the second end 3113, and after the fan blade assembly 100 is assembled in the blowing device 500, the buffer member 50 can be spaced apart from the rear mesh baffle 131. After the fan blade assembly 100 is assembled in the blower 500, the buffer 50 is spaced apart from the second end 3113 so that when the fan blade 10 and the fan blade 30 move relative to each other, the buffer 50 can first abut against the second end 3113; or, the buffer 50 can be provided on both the second end 3113 and the side of the rear baffle 131 facing the second end 3113, and after the fan blade assembly 100 is assembled in the blower 500, the corresponding buffer 50 is spaced apart from the second end 3113 and the rear baffle 131 respectively, so that when the fan blade 10 and the fan blade 30 move relative to each other, the buffer 50 can first abut against the second end 3113. Furthermore, under the buffering effect of the buffer 50, the elastic effect of the buffer 50 can reduce the interaction force between the mesh cover 10 and the fan blade 30. At the same time, the friction of the buffer 50 can be used to quickly stop the rotation of the fan blade 30, thereby reducing the impact force on the fan blade 30 during the disassembly and assembly of the mesh cover 10. This helps to avoid damage to the fan blade 30, reduce safety hazards during the disassembly and assembly of the fan blade assembly 100, and effectively improve the structural reliability and practicality of the fan blade assembly 100.

[0045] See Figure 2 , Figure 5 and Figure 6 In one embodiment of the present invention, the buffer 50 includes a first buffer structure 51, which is connected to the mounting body 31 and protrudes from the second end 3113.

[0046] In this embodiment, a first buffer structure 51 is provided on the mounting body 31. The first buffer structure 51 may include, but is not limited to, soft rubber, rubber, spring, etc. The first buffer structure 51 can be glued to the second end 3113 of the mounting body 31 using adhesive, or it can be fastened to the second end 3113 using screws, bolts, or other fasteners. Alternatively, the first buffer structure 51 can be fixedly assembled inside the mounting body 31 and extend out of the second end 3113. This application does not limit the fixed assembly method of the first buffer structure 51 on the mounting body 31, as long as the first buffer structure 51 is stably set on the second end 3113. Furthermore, by utilizing the first buffer structure 51 protruding from the second end 3113, when the mesh cover 10 and the fan blade 30 move relative to each other, the first buffer structure 51 first contacts the rear mesh baffle 131 of the mesh cover 10, thereby reducing the interaction force between the mesh cover 10 and the fan blade 30, effectively preventing the fan blade 30 from being subjected to a large instantaneous impact force and preventing the fan blade 30 from being damaged by collision; at the same time, the contact friction force between the first buffer structure 51 and the rear mesh baffle 131 can be used to quickly stop the rotation of the fan blade 30, better reducing the safety hazards during the disassembly and assembly of the fan blade assembly 100, and further improving the structural reliability and practicality of the fan blade assembly 100.

[0047] See Figure 2 and Figure 5 In one embodiment of the present invention, the mounting body 31 is provided with a receiving cavity 3115, the second end 3113 is provided with a clearance opening communicating with the receiving cavity 3115, the first buffer structure 51 is fixedly disposed in the receiving cavity 3115, and a part of the first buffer structure 51 extends out of the clearance opening.

[0048] In this embodiment, the mounting body 31 can be configured as a block structure or a cylindrical structure with a certain thickness, and the interior of the mounting body 31 can form a receiving cavity 3115 with a certain volume. By providing a clearance opening on the second end 3113 of the mounting body 31 to communicate with the receiving cavity 3115, the first buffer structure 51 can be installed in the receiving cavity 3115, and part of the structure of the first buffer structure 51 can extend out of the clearance opening and protrude on the second end 3113. Thus, under the limiting and fixing action of the mounting body 31, the first buffer structure 51 can be more stably assembled on the mounting body 31, which can better improve the connection stability and reliability between the first buffer structure 51 and the mounting body 31, ensure a more reliable buffering effect of the first buffer structure 51 on the mesh cover 10 and the fan blade 30, and further improve the structural reliability and stability of the fan blade assembly 100.

[0049] The mounting body 31 can be designed as an openable box to facilitate the assembly and disassembly of the first buffer structure 51. Alternatively, the first buffer structure 51 can be cast into the receiving cavity 3115 through a clearance opening and solidified. Or, the elastic deformation of the first buffer structure 51 can be utilized, allowing it to be compressed and deformed before being inserted into the receiving cavity 3115 through the clearance opening, and then restoring its elastic deformation to abut against the inner wall of the receiving cavity 3115, achieving stable assembly of the first buffer structure 51 on the mounting body 31. Furthermore, the first buffer structure 51 can be adhered to the inner wall of the receiving cavity 3115 using adhesive, or its outer wall can be fitted with a locking structure to ensure a more secure assembly within the receiving cavity 3115, better preventing the first buffer structure 51 from detaching from the mounting body 31 and further improving the overall structural stability of the fan blade assembly 100.

[0050] See Figure 2 , Figure 5 and Figure 8 In one embodiment of the present invention, the mounting body 31 includes a main body 311 and a cover plate 313. The blade 33 is connected to the outer periphery of the main body 311. The main body 311 has a first end 3111 and a second end 3113. The main body 311 is provided with a receiving cavity 3115. The first end 3111 is provided with an installation port communicating with the receiving cavity 3115. The cover plate 313 is connected to the main body 311 and abuts against the limiting first buffer structure 51.

[0051] In this embodiment, by making the mounting body 31 include a main body 311 and a cover plate 313, the main body 311 can be provided with an installation port at the first end 3111 that communicates with the receiving cavity 3115, so that the receiving cavity 3115 can pass through the main body 311. Then, the first buffer structure 51 can be installed into the receiving cavity 3115 through the installation port. At this time, the first buffer structure 51 can include a receiving part and a buffer part connected to each other, so that the first buffer structure 51 can fix the receiving part in the receiving cavity 3115 and allow the buffer part to pass through the clearance opening and extend out of the second end 3113 of the main body 311 toward the rear mesh baffle 131, ensuring the stable and reliable installation of the first buffer structure 51 on the mounting body 31, which is conducive to making the first buffer structure 51 more conveniently received and installed into the receiving cavity 3115.

[0052] By using the cover plate 313 to fasten the mounting opening, the first buffer structure 51 can be installed into the receiving cavity 3115 through the mounting opening. The connection between the cover plate 313 and the main body 311 allows the cover plate 313 to close and seal the mounting opening. Under the action of the cover plate 313, the first buffer structure 51 can be stably abutted and limited, preventing the first buffer structure 51 from detaching from the mounting body 31 along the axial direction. This ensures the stable buffering effect of the first buffer structure 51 on the mesh cover 10 and the fan blade 30, further improving the structural stability and reliability of the fan blade assembly 100.

[0053] The cover plate 313 can be fixedly installed on the main body 311 using a snap-fit ​​mechanism; alternatively, it can be fastened to the main body 311 using screws, bolts, or other fasteners; or, a sliding groove structure can be provided on the first end 3111 of the main body 311 to engage with the cover plate 313, allowing the cover plate 313 to slide on the first end 3111 to open or close the mounting opening. There are many other ways for the cover plate 313 to be installed with the main body 311, and this application does not limit this to any particular method, as long as the cover plate 313 can stably open and close the mounting opening.

[0054] Or, refer to Figure 2 , Figure 5 and Figure 8 In one embodiment of the present invention, the cover plate 313 is provided with a fastening member 3133, which extends into the receiving cavity 3115 and is fastened to the main body 311.

[0055] In this embodiment, the fastener 3133 can be a spring sheet structure that extends outward from the plate surface of the cover plate 313 toward the main body 311, and a protrusion is provided on the outer side of the spring sheet structure, so that the fastener 3133 has a certain elasticity. Then the cover plate 313 can insert the fastener 3133 into the receiving cavity 3115 of the main body 311, and the cover plate 313 is securely installed on the main body 311 by the abutment between the fastener 3133 and the main body 311. At this time, the buckle 3133 can abut against the inner wall of the receiving cavity 3115 using the protrusion, and the elastic force of the spring piece can be used to keep the buckle 313 and the inner wall of the receiving cavity 3115 abutting against each other, so as to ensure the stable installation of the cover plate 313 on the main body 311; or, an opening can be provided in the inner wall of the receiving cavity 3115, so that when the buckle 3133 is inserted into the receiving cavity 3115, the protrusion can be inserted into the opening in the inner wall of the receiving cavity 3115, so that the cover plate 313 can be clamped and fixed on the main body 311, thus ensuring the stable installation of the cover plate 313 on the main body 311.

[0056] See Figure 2 , Figure 5 and Figure 8In one embodiment of the present invention, the first buffer structure 51 is provided with a limiting hole 511 on the side facing the cover plate 313, and the surface of the cover plate 313 is provided with a limiting protrusion 3131, which is inserted into the limiting hole 511.

[0057] In this embodiment, by providing a limiting hole 511 on the first buffer structure 51, the first buffer structure 51 can be assembled into the receiving cavity 3115, and the limiting hole 511 can communicate with the mounting port. At this time, by providing a limiting protrusion 3131 on the surface of the cover plate 313, the shape and size of the limiting protrusion 3131 can be set to correspond to the shape and size of the limiting hole 511, so that the limiting protrusion 3131 and the limiting hole 511 can form a mutually engaging and snapping structure. Thus, when the cover plate 313 is fastened to the mounting port, the limiting protrusion 3131 can pass through the mounting port and be inserted into the limiting hole 511, so that the cover plate 313 can use the insertion action of the limiting protrusion 3131 and the limiting hole 511 to achieve a more stable limiting effect on the first buffer structure 51. This is beneficial to better prevent the first buffer structure 51 from detaching from the mounting body 31, ensuring a more stable and reliable buffering effect of the first buffer structure 51 on the mesh cover 10 and the mounting body 31, and further improving the structural stability and reliability of the fan blade assembly 100.

[0058] See Figure 2 In one embodiment of this utility model, the distance between the end face of the first buffer structure 51 and the rear mesh baffle 131 is defined as D1, where 1mm≤D1≤20mm.

[0059] In this embodiment, by limiting the distance between the end face of the first buffer structure 51 and the rear mesh baffle 131 to between 1mm and 20mm, a more suitable distance can be maintained between the first buffer structure 51 and the rear mesh baffle 131 when the fan blade assembly 100 is assembled onto the blower 500. By setting the distance D1 between the first buffer structure 51 and the rear baffle 131 to be greater than or equal to 1mm, the first buffer structure 51 can be effectively prevented from contacting and rubbing against the rear baffle 131 when the blower device 500 is operating stably. This ensures that the first buffer structure 51 avoids the rotation of the fan blade 30 and prevents the fan blade 30 from being subjected to friction between the first buffer structure 51 and the rear baffle 131, which could reduce the blowing effect of the blower device 500. At the same time, by setting D1 to be less than or equal to 20mm, the first buffer structure 51 can be positioned closer to the rear baffle 131, so that the mesh cover 10 can contact the first buffer structure 51 more quickly during disassembly and assembly. This allows the first buffer structure 51 to more stably and reliably buffer the relative movement between the mesh cover 10 and the fan blade 30, effectively reducing the instantaneous force on the fan blade 30 and preventing the fan blade 30 from being damaged by a large impact force, thereby further improving the structural stability and reliability of the fan blade assembly 100.

[0060] See Figure 3 and Figure 4 In one embodiment of the present invention, the buffer member 50 includes a second buffer structure 53, which is connected to the rear mesh baffle 131 and protrudes from the surface of the rear mesh baffle 131 toward the second end 3113.

[0061] In this embodiment, a second buffer structure 53 is provided on the mesh cover 10. The second buffer structure 53 may include, but is not limited to, soft rubber, rubber, springs, etc. The second buffer structure 53 can be glued to the side of the rear mesh baffle 131 facing the second end 3113 using adhesive, or it can be fastened to the side of the rear mesh baffle 131 facing the second end 3113 using screws, bolts, or other fasteners. Alternatively, the second buffer structure 53 can be fixedly installed on the rear mesh baffle 131 and extend out of the side of the rear mesh baffle 131 facing the second end 3113. This application does not limit the fixing and assembly method of the second buffer structure 53 on the rear mesh baffle 131, as long as the second buffer structure 53 can be stably installed on the rear mesh baffle 131. Furthermore, by utilizing the second buffer structure 53 protruding from the rear mesh baffle 131 on the side facing the second end 3113, when the mesh cover 10 and the fan blade 30 move relative to each other, the second buffer structure 53 first contacts the second end 3113 of the mounting body 31, thereby reducing the interaction force between the mesh cover 10 and the fan blade 30, effectively preventing the fan blade 30 from being subjected to a large instantaneous impact force and preventing the fan blade 30 from being damaged by collision; at the same time, the contact friction force between the second buffer structure 53 and the second end 3113 can be used to quickly stop the rotation of the fan blade 30, better reducing the safety hazards during the disassembly and assembly of the fan blade assembly 100, and further improving the structural reliability and practicality of the fan blade assembly 100.

[0062] See Figure 3 In one embodiment of this utility model, the distance between the end face of the second buffer structure 53 and the second end 3113 is defined as D2, where 1mm≤D2≤20mm.

[0063] In this embodiment, by limiting the distance between the end face of the second buffer structure 53 and the second end 3113 to between 1 mm and 20 mm, a more suitable distance can be maintained between the second buffer structure 53 and the mounting body 31 of the fan blade 30 when the fan blade assembly 100 is assembled onto the blower 500. By setting the distance D2 between the second buffer structure 53 and the second end 3113 to be greater than or equal to 1mm, the second buffer structure 53 can be effectively prevented from contacting and rubbing against the second end 3113 when the blower device 500 is operating stably. This ensures that the second buffer structure 53 avoids the rotation of the fan blade 30 and prevents the fan blade 30 from being subjected to friction between the second buffer structure 53 and the second end 3113, which could reduce the blowing effect of the blower device 500. At the same time, by setting D2 to be less than or equal to 20mm, the second buffer structure 53 can be positioned closer to the mounting body 31, so that the mesh cover 10 can contact the second buffer structure 53 more quickly during disassembly and assembly. This allows the second buffer structure 53 to more stably and reliably buffer the relative movement between the mesh cover 10 and the fan blade 30, effectively reducing the instantaneous force on the fan blade 30 and preventing the fan blade 30 from being damaged by a large impact force, thereby further improving the structural stability and reliability of the fan blade assembly 100.

[0064] In addition, see Figure 4 In some embodiments of this application, the buffer member 50 may have a first buffer structure 51 protruding from the second end 3113 of the fan blade 30 mounting body 31, and a second buffer structure 53 protruding from the side of the rear mesh baffle 131 facing the second end 3113. This allows the first buffer structure 51 to be spaced apart from the rear mesh baffle 131, and the second buffer structure 53 to be spaced apart from the second end 3113. Furthermore, a certain distance is also maintained between the first buffer structure 51 and the second buffer structure 53. This allows for better buffering of the relative movement between the fan blade 30 and the mesh cover 10, which helps to reduce the impact force on the fan blade 30 and better stop the fan blade 30 from rotating, effectively preventing damage to the fan blade 30 from external forces, and further improving the structural stability and reliability of the fan blade assembly 100. Further, in one embodiment of this utility model, the distance between the first buffer structure 51 and the second buffer structure 53 is defined as D3, where 1mm ≤ D3 ≤ 20mm.

[0065] In this embodiment, by limiting the distance between the end face of the first buffer structure 51 and the end face of the second buffer structure 53 to between 1 mm and 20 mm, a more suitable distance setting can be maintained between the first buffer structure 51 and the second buffer structure 53 when the fan blade assembly 100 is assembled onto the blower device 500. By setting the distance D3 between the first buffer structure 51 and the second buffer structure 53 to be greater than or equal to 1mm, the first buffer structure 51 can be effectively prevented from contacting and rubbing against the rear mesh baffle 131 when the blower device 500 is operating stably. At the same time, the second buffer structure 53 can be effectively prevented from contacting and rubbing against the second end 3113 when the blower device 500 is operating stably. This ensures that the first buffer structure 51 and the second buffer structure 53 avoid the rotation of the fan blade 30 and prevents the fan blade 30 from being subjected to mutual friction between the first buffer structure 51 and the second buffer structure 53, which may reduce the blowing effect of the blower device 500. At the same time, by setting D3 to be less than or equal to 20mm, the first buffer structure 51 and the second buffer structure 53 can be brought closer to each other, so that the first buffer structure 51 and the second buffer structure 53 can more stably and reliably buffer the relative movement of the mesh cover 10 and the fan blade 30, effectively reducing the instantaneous force on the fan blade 30, preventing the fan blade 30 from being subjected to large collision forces and thus preventing damage. This further improves the structural stability and reliability of the fan blade assembly 100.

[0066] See Figure 1 In one embodiment of the present invention, the mesh cover 10 includes a front mesh cover 11 and a rear mesh cover 13. The front mesh cover 11 and the rear mesh cover 13 are connected and enclosed to form a protective space 10a. The rear mesh cover 13 is provided with a rear mesh baffle 131.

[0067] In this embodiment, by including a front screen 11 and a rear screen 13 in the screen cover 10, the screen cover 10 can be configured as a detachable split structure, facilitating the assembly and installation of the fan blade 30 within the protective space 10a of the screen cover 10, and enabling convenient disassembly, assembly, and maintenance of the fan blade assembly 100. The front screen cover 11 and the rear screen cover 13 can be fastened together using screws, bolts, or other fasteners to form a single unit; alternatively, they can be assembled by interlocking structures. This application does not limit the assembly method of the front screen cover 11 and the rear screen cover 13.

[0068] By installing a rear baffle 131 on the rear cover 13, the rotating shaft 20 of the drive device 200 or the connecting shaft of the fan blade 30 can be connected through the rear baffle 131. This allows the drive device 200 to stably drive the fan blade 30 to rotate and blow air, while ensuring the protective function of the cover 10 for the fan blade 30, thus achieving stable operation of the blower device 500. The buffer 50 between the rear baffle 131 of the rear cover 13 and the second end 3113 of the fan blade mounting body 31 effectively buffers the relative movement between the rear cover 13 and the fan blade 30 when the rear cover 13 is removed from the drive device 200. This facilitates rapid stopping of the fan blade 30's rotation, effectively reduces the force on the fan blade 30, prevents damage to the fan blade 30, and further improves the overall structural stability and reliability of the blower device 500.

[0069] See Figure 1 , Figure 5 , Figure 7 and Figure 8 In one embodiment of the present invention, the fan blade 30 further includes a magnetic component 35, which is connected to the mounting body 31 and is magnetically engaged with the rotating shaft 20 of the drive device 200.

[0070] In this embodiment, the fan blade assembly 100 is mounted on the drive device 200, which can be a fan device. The fan blade assembly 100 can then connect the mounting body 31 of the fan blade 30 to the rotating shaft 20 of the fan device, allowing the fan device to stably drive the fan blade 30 to rotate and generate airflow via the rotating shaft 20. At this time, a magnetic element 35 can be provided on the mounting body 31 of the fan blade 30. This magnetic element 35 can be a magnet or similar structure. The rotating shaft 20 of the drive device 200 can be made of a magnetically attractive metal material, or a magnet with opposite magnetism to the magnetic element 35 can be connected to the end of the rotating shaft 20. This allows the magnetic element 35 to magnetically attract the rotating shaft 20 during installation, effectively preventing the fan blade 30 from detaching from the rotating shaft 20 along its axial direction. This results in a more stable assembly between the rotating shaft 20 and the fan blade 30, enabling the drive device 200 to stably drive the fan blade 30 to rotate.

[0071] The magnetic component 35 can be glued to the surface of the mounting body 31; alternatively, it can be fastened to the surface of the mounting body 31 using screws or other fasteners; or, when the mounting body 31 is made of plastic, the magnetic component 35 and the mounting body 31 can be manufactured using an integral injection molding process to ensure a stable connection between the magnetic component 35 and the mounting body 31. Of course, there are many other ways to assemble the magnetic component 35 and the mounting body 31, and this application does not limit this, as long as a stable installation of the magnetic component 35 on the mounting body 31 is achieved.

[0072] Further, see Figure 5 , Figure 7 and Figure 8 In one embodiment of the present invention, the magnetic element 35 is disposed on the side of the mounting body 31 opposite to the driving device 200, and the projection of the rotating shaft 20 of the driving device 200 along the axial direction on the mounting body 31 overlaps with at least part of the magnetic element 35.

[0073] In this embodiment, the magnetic component 35 can be disposed on the side of the mounting body 31 facing away from the drive device 200. In this case, the mounting body 31 can be made of a magnetically permeable material so that the magnetic lines of force emitted by the magnetic component 35 can stably pass through the mounting body 31 and act on the rotating shaft 20, ensuring a stable magnetic attraction between the magnetic component 35 and the rotating shaft 20. Alternatively, the mounting body 31 can be provided with a through hole, and the magnetic component 35 can be disposed close to one end of the through hole, allowing the rotating shaft 20 to be inserted into the through hole, ensuring a stable magnetic connection between the magnetic component 35 and the rotating shaft 20. By disposing of the magnetic component 35 on the side of the mounting body 31 facing away from the drive device 200, the magnetic attraction force between the magnetic component 35 and the rotating shaft 20 can be used to act on the mounting body 31, allowing the mounting body 31 to be better positioned and fitted onto the rotating shaft 20 along its axial direction. At the same time, it can better prevent the magnetic component 35 from separating from the mounting body 31 under the action of magnetic force, ensuring a more stable axial positioning and fitting of the fan blade 30 on the rotating shaft 20.

[0074] See Figure 5 , Figure 7 and Figure 8 In one embodiment of the present invention, the mounting body 31 includes a main body 311 and a cover plate 313. The main body 311 has a first end 3111 and a second end 3113. The first end 3111 is provided with a receiving groove 3117. The magnetic component 35 is disposed in the receiving groove 3117. The cover plate 313 is connected to the main body 311 and abuts against the limiting magnetic component 35.

[0075] In this embodiment, the mounting body 31 may include a main body 311 and a cover plate 313. The side of the main body 311 facing away from the driving device 200 may form a first end 3111, and the side of the main body 311 facing the driving device 200 may form a second end 3113. By providing a receiving groove 3117 at the first end of the main body 31, the magnetic component 35 can be received using the receiving groove 3117, thereby achieving a stable mounting of the magnetic component 35 on the main body 31. The receiving groove 3117 can be set in the central area of ​​the mounting body 31 so that the projection of the rotating shaft 20 along the axial direction on the mounting body 31 can overlap with at least part of the receiving groove 3117. By installing the magnetic component 35 in the receiving groove 3117, the magnetic component 35 can be stably magnetically attracted to the rotating shaft 20. The receiving groove 3117 can also limit the magnetic component 35 to prevent the magnetic component 35 from being relatively offset from the mounting body 31 during the operation of the blower 500. This allows the magnetic component 35 and the mounting body 31 to maintain a good concentric assembly, avoiding the possibility that the fan blade 30 will vibrate and generate noise due to the eccentric installation of the magnetic component 35 on the mounting body 31. This further improves the structural stability and reliability of the fan blade assembly 100. The magnetic component 35 can be installed with an interference fit to the inner wall of the receiving groove 3117, so that the magnetic component 35 can be securely assembled by using the outer wall to snap into the inner wall of the receiving groove 3117; or, the magnetic component 35 can be securely installed with the mounting body 31 by using adhesive to bond the magnetic component 35 to the inner wall of the receiving groove 3117.

[0076] By connecting and installing a cover plate 313 at the first end of the main body 311, the cover plate 313 can be positioned corresponding to the receiving groove 3117. The cover plate 313 can play a role in resisting and limiting the magnetic component 35 by fastening the cover plate 313 to the main body 311. This helps to better prevent the magnetic component 35 from detaching from the main body 311 and further improves the overall structural stability and reliability of the fan blade 30.

[0077] It should be noted that there are many ways to connect the cover plate 313 and the main body 311, and this application does not limit this. For example, a fastening structure such as a bolt or plug can be used to pass through the cover plate 313 and connect it to the main body 311 to lock the cover plate 313. Alternatively, a mutually cooperating internal thread and external thread structure can be provided between the cover plate 313 and the main body 311 so that the cover plate 313 and the main body 311 can be assembled and disassembled by means of threaded connection.

[0078] Furthermore, the fan blade 30 can be fixedly installed with a first buffer structure 51 within the main body 311, so that the fan blade 30 can utilize the first buffer structure 51 to achieve a certain buffering effect, reducing the mutual contact between the fan blade 30 and the mesh cover 10. A receiving cavity 3115 can be provided within the main body 311 to accommodate the first buffer structure 51. In this case, the sleeve shaft that is engaged with the rotating shaft 20 of the drive device 200 can pass through the receiving cavity 3115, and a receiving groove 3117 is provided at the end of the sleeve shaft facing away from the drive device 200. This allows the cover plate 313 to limit the first buffer structure 51 and the magnetic component 35 together when connected to the main body 311, thus better ensuring the overall structural stability and reliability of the fan blade 30.

[0079] See Figure 3 , Figure 4 and Figure 7 In one embodiment of the present invention, a limiting block 3119 is provided on the periphery of the mounting body 31. The limiting block 3119 and the rear mesh baffle 131 are arranged opposite each other at intervals. The rear mesh baffle 131 is located between the fan blade 30 and the limiting block 3119.

[0080] In this embodiment, the rear baffle 131 of the mesh cover 10 can be provided with a through hole corresponding to the rotation center of the fan blade 30, so that the mounting body 31 of the fan blade 30 can pass through the through hole and connect to the rotating shaft 20 of the drive device 200. The size of the through hole can be slightly larger than the size of the rotation trajectory of the mounting body 31, so that the mesh cover 10 can stably avoid the rotation of the mounting body 31 and reduce the obstruction to the rotation of the mounting body 31. By providing a limiting block 3119 on the periphery of the mounting body 31, and setting the limiting block 3119 and the rear baffle 131 at intervals, after the mesh cover 10 and the fan blade 30 are installed together, the limiting block 3119 can be located on the side of the rear baffle 131 that is away from the blade 33. After the blower 500 is assembled, by setting the limiting block 3119 and the mesh cover 10 with a certain distance from the rear mesh baffle 131, the interference of the mesh cover 10 on the rotation of the mounting body 31 can be effectively avoided. At the same time, when the mounting body 31 is disengaged from the rotating shaft 20 of the drive device 200, the limiting block 3119 can abut against the rear mesh baffle 131 of the mesh cover 10 to limit the mounting body 31, prevent the fan blade 30 from moving axially or tilting inside the mesh cover 10, and prevent the fan blade 30 from colliding with the mesh cover 10 and causing damage to the fan blade 30, thereby improving the overall structural stability and reliability of the fan blade assembly 100.

[0081] It should be noted that the fan blade assembly 100 can have a notch on the edge of the rear baffle 131 corresponding to the size of the limiting block 3119, so that the fan blade 30 can stably connect the mounting body 31 through the rear baffle 131 and the rotating shaft 20 within the mesh cover 10; or, the mounting body 31 of the fan blade 30 can be set in a split structure, so that the part of the mounting body 31 connected to the rotating shaft 20 passes through the through hole on the outside of the mesh cover 10 and connects with the part of the mounting body 31 housed in the mesh cover 10. In this case, the part of the mounting body 31 located on the outside of the mesh cover 10 can be equipped with a limiting block 3119, so that the blade 33 connects to the part of the mounting body 31 housed in the wind cover 10, ensuring the stable assembly of the air outlet assembly 100.

[0082] This utility model also proposes a blower device 500, which includes a drive device 200 and a fan blade assembly 100. The specific structure of the fan blade assembly 100 is as described in the above embodiments. Since this blower device 500 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0083] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A vane assembly, comprising: include: A mesh cover, wherein a protective space is formed within the mesh cover; The fan blade is disposed within the protective space. The fan blade includes a mounting body and blades. The blades are connected to the periphery of the mounting body. The fan blade has a first end and a second end opposite to each other. The mesh cover is provided with a rear mesh baffle that is spaced apart from and opposite to the second end. A buffer element, connected to the mounting body and / or the mesh cover, is used to buffer the relative movement between the mounting body and the mesh cover.

2. The leaf assembly of claim 1, wherein, The buffer includes a first buffer structure, which is connected to the mounting body and protrudes from the second end.

3. The leaf assembly of claim 2, wherein, The mounting body has a receiving cavity, and the second end has a clearance opening that communicates with the receiving cavity. The first buffer structure is fixedly installed in the receiving cavity, and a portion of the first buffer structure extends out of the clearance opening.

4. The leaf assembly of claim 3, wherein, The installation body includes: The main body has a blade connected to its outer periphery. The main body has a first end and a second end. The main body has a receiving cavity inside. The first end has an installation port communicating with the receiving cavity. A cover plate, which is connected to the main body and abuts against and limits the first buffer structure.

5. The leaf assembly of claim 4, wherein, The first buffer structure has a limiting hole on the side facing the cover plate, and the cover plate has a limiting protrusion on its surface, which is inserted into the limiting hole. And / or, the cover plate is provided with a fastening element that extends into the receiving cavity and engages with the main body.

6. The leaf assembly of claim 2 wherein, The distance between the end face of the first buffer structure and the rear mesh baffle is defined as D1, where 1mm≤D1≤20mm.

7. The leaf assembly of any one of claims 1 to 6, wherein, The buffer includes a second buffer structure, which is connected to the rear mesh baffle and protrudes from the surface of the rear mesh baffle facing the second end.

8. The leaf assembly of claim 7, wherein, The distance between the end face of the second buffer structure and the second end is defined as D2, where 1mm≤D2≤20mm.

9. The leaf assembly of claim 7, wherein, The buffer also includes a first buffer structure, which is connected to the mounting body and is disposed opposite to the second buffer structure. The distance between the first buffer structure and the second buffer structure is defined as D3, where 1mm≤D3≤20mm.

10. The leaf assembly of any one of claims 1 to 6, wherein, The mesh cover includes a front mesh cover and a rear mesh cover, the front mesh cover and the rear mesh cover are connected to form the protective space, and the rear mesh cover is provided with the rear mesh baffle.

11. The leaf assembly of claim 1 wherein, The fan blade also includes a magnetic component, which is connected to the mounting body for magnetically engaging with the shaft of the drive device.

12. The leaf assembly of claim 11, wherein, The mounting body includes a main body and a cover plate. The main body has a first end and a second end. The first end is provided with a receiving groove. The magnetic component is disposed in the receiving groove. The cover plate is connected to the main body and abuts against and limits the magnetic component.

13. The leaf assembly of claim 1 wherein, Limiting blocks are provided around the main body of the installation. The limiting blocks and the rear mesh baffle are arranged at intervals and opposite to each other. The rear mesh baffle is located between the fan blade and the limiting blocks.

14. A hair drying device, characterized by The blowing device includes a drive unit and a fan blade assembly, wherein the fan blade assembly is the fan blade assembly according to any one of claims 1 to 13, and the fan blade assembly is connected to the drive unit.

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