Blowing device

Abstract

The utility model discloses a kind of blowing device, it is related to blowing equipment technical field, wherein, blowing device includes mesh cover, fan blade and drive mechanism, the side of mesh cover is equipped with mounting structure;Fan blade is located in the mesh cover;Drive mechanism is detachably connected with the mounting structure, drive mechanism is equipped with driving shaft, the driving shaft is connected with fan blade;Wherein, at least one of the mounting structure and the fan blade is integrally provided with limit structure, the limit structure is used to limit the relative movement of the mounting structure and the fan blade under the condition that the mounting structure and drive mechanism are disassembled.The technical scheme provided by the utility model aims to improve the practicability and structural reliability of blowing device.

Description

Technical Field

[0001] This utility model relates to the field of blower equipment technology, and in particular to a blower device. Background Technology

[0002] In related technologies, floor fans, table fans and other air-blowing devices can use a mesh cover to protect the fan blades, so that the fan drives the fan blades to rotate stably inside the mesh cover and blow air, preventing the fan blades from being hit by foreign objects and preventing users from accidentally touching the fan blades. In some existing fans, the mesh cover and fan blades can be detached from the motor as a whole, making it convenient for users to clean and store.

[0003] However, during disassembly, this structure may cause the fan blades to continue rotating for an extended period due to inertia, resulting in collisions between the fan blades and the mesh cover, leading to damage to either the fan blades or the mesh cover. Alternatively, the fan blades may continue rotating while the user is removing the mesh cover, potentially injuring the user. This poses certain safety hazards and reduces the ease of operation and practicality of the blower. Utility Model Content

[0004] The main purpose of this invention is to provide a blower device that improves the practicality and structural reliability of the blower device.

[0005] To achieve the above objectives, the present invention proposes a blower device comprising a mesh cover, a fan blade, and a drive mechanism. The mesh cover has an installation structure on one side; the fan blade is disposed within the mesh cover; the drive mechanism is detachably connected to the installation structure, and the drive mechanism has a drive shaft connected to the fan blade; wherein at least one of the installation structure and the fan blade is integrally provided with a limiting structure, the limiting structure being used to limit the relative movement of the installation structure and the fan blade when the installation structure and the drive mechanism are disassembled.

[0006] In one embodiment, the limiting structure includes a first protrusion and a second protrusion, the first protrusion being disposed on the side of the mounting structure facing the fan blade, and the second protrusion being disposed on the side of the fan blade facing the mounting structure; under the condition that the mounting structure and the drive mechanism are disassembled, the first protrusion and the second protrusion cooperate to abut against each other.

[0007] In one embodiment, the limiting structure includes at least two first protrusions, which are spaced apart around the drive shaft; the limiting structure also includes at least two second protrusions, which are spaced apart around the drive shaft.

[0008] In one embodiment, under the condition that the mounting structure and the drive mechanism are connected and installed, the distance between the first protrusion and the second protrusion along the axial direction of the drive shaft is defined as L1; under the condition that the mounting structure and the drive mechanism are disassembled, the distance that the mesh cover moves relative to the drive mechanism along the axial direction of the drive shaft is defined as L2, where L1 < L2.

[0009] In one embodiment, the mounting structure has a limiting boss on the side facing the fan blade, and the fan blade has a limiting groove on the side facing the mounting structure. At least a portion of the limiting boss is disposed within the limiting groove, and the limiting structure is provided on at least one of the inner wall of the limiting groove and the surface of the limiting boss. And / or, the fan blade has an abutment ring on the side facing the mounting structure, the abutment ring is arranged around the drive shaft and extends along the axial direction of the drive shaft, and the limiting structure is provided on at least one of the end face of the abutment ring and the surface of the mounting structure.

[0010] In one embodiment, the drive mechanism and / or the mesh cover are provided with a pushing structure, which, when the mounting structure and the drive mechanism are disassembled, can drive the mesh cover away from the drive mechanism along the axial direction of the drive shaft.

[0011] In one embodiment, the fan blade is magnetically connected to the drive shaft.

[0012] In one embodiment, the drive mechanism has one of a slot or a buckle on the side facing the mounting structure, and the mounting structure has the other of a slot or a buckle on the side facing the drive mechanism. The slot extends in a direction surrounding the drive shaft, and the buckle is slidably engaged with the slot.

[0013] In one embodiment, the jacking structure is a ramp, which is located on the inner wall of the slot facing the drive shaft in the axial direction, and the ramp abuts against the buckle; the ramp has a top and a bottom, and the ramp is inclined in the direction from the top to the bottom, and the buckle engages with the slot during the movement along the direction from the top to the bottom.

[0014] In one embodiment, the fan blade includes a rotating body and a connecting shaft. Multiple blades are arranged around the periphery of the rotating body, and the connecting shaft is connected to the rotating body. The mounting structure has a clearance hole, through which the connecting shaft passes, and the drive shaft is connected to the connecting shaft. Alternatively, the blower further includes a control switch, which is located on and electrically connected to the drive mechanism. The mounting structure triggers the control switch when connected to the drive mechanism and separates from the control switch when disassembled from the drive mechanism.

[0015] The technical solution of this utility model involves setting a limiting structure on at least one of the mounting structure and the fan blade. This limiting structure increases the frictional force when the mesh cover contacts the fan blade, thereby limiting the relative movement of the mesh cover and the fan blade. The integrated limiting structure design enhances the structural strength of the limiting structure and facilitates the easier manufacturing and processing of the mesh cover and fan blade, improving the structural stability and reliability of the blower. Thus, when the blower is in normal operating installation mode, the mesh cover can be fixedly mounted on the drive mechanism using the mounting structure, and the drive shaft of the drive mechanism is connected to the fan blade, allowing the drive mechanism to drive the fan blade to rotate within the mesh cover. The spaced arrangement between the mounting structure and the fan blade effectively prevents the fan blade from rotating, ensuring stable blowing operation of the blower. When the blower needs to be disassembled, the guard can move away from the drive mechanism along the axis of the drive shaft. When the mounting structure moves to contact the fan blades, the mounting structure and the limiting structure in the form of a protrusion on the fan blades can abut against each other; or the protruding limiting structure can contact and abut against the relative surfaces of the mounting structure or the fan blades. Under the abutment action of the limiting structure, the friction between the guard and the fan blades can be effectively increased, so that the fan blades can be quickly stopped when the guard is removed from the drive mechanism. This avoids damage to the fan blades or guard during the disassembly of the blower, or even injury to the user, effectively reducing the safety hazards of the blower and further improving the practicality and reliability of the blower. Attached Figure Description

[0016] 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.

[0017] Figure 1 A schematic diagram of the structure of an embodiment of the blower provided by this utility model; Figure 2 for Figure 1 A cross-sectional view of an embodiment of the mesh cover and fan blades of a blower device; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 for Figure 1 A schematic diagram of the internal structure of the mesh cover of a blower device according to an embodiment; Figure 5 for Figure 4 A magnified view of a section at point B in the middle; Figure 6 for Figure 1 Rear view of an embodiment of the fan blades of a blower device; Figure 7 for Figure 6 A magnified view of a section at point C; Figure 8 for Figure 1 A schematic diagram of the structure of the mesh cover and fan blades of an embodiment of a blower device; Figure 9 for Figure 1 A schematic diagram of the structure of an embodiment of the drive mechanism of the blower; Figure 10 for Figure 9 A partial structural schematic diagram of an embodiment of the drive mechanism; Figure 11 A partial structural cross-sectional view of an embodiment of the blower provided by this utility model; Figure 12 for Figure 11 A magnified view of a section at point D.

[0018] Explanation of icon numbers: 100. Blowing device; 10. Net cover; 11. Mounting structure; 111. First protrusion; 113. Limiting boss; 1131. First abutment area; 1133. Second abutment area; 115. Buckle; 117. Clearance hole; 30. Fan blade; 31. Rotating body; 311. Second protrusion; 313. Limiting groove; 315. Abutment ring; 33. Connecting shaft; 35. Blade; 50. Drive mechanism; 51. Drive shaft; 53. Slot; 531. Pushing structure; 5311. Slope top; 5313. Slope bottom; 70. Control switch. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] 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.

[0022] In related technologies, floor fans, table fans, and other air-blowing devices can use a mesh cover to protect the fan blades, allowing the fan to drive the blades to rotate stably within the mesh cover and output air. This prevents the blades from being hit by foreign objects and avoids accidental contact with the blades by the user. Some existing fans have a mesh cover and fan blades that are detachable from the motor for easy cleaning and storage. However, this structure may allow the fan blades to continue rotating for an extended period due to inertia during disassembly, potentially causing collisions between the blades and the mesh cover, leading to damage to either. Alternatively, the fan blades may continue rotating while the user removes the mesh cover, posing a safety hazard and reducing the ease of operation and practicality of the air-blowing device. To address these issues, this utility model proposes an air-blowing device.

[0023] Please see Figures 1 to 3 In one embodiment of the present invention, the blower device 100 includes a mesh cover 10, a fan blade 30, and a drive mechanism 50. A mounting structure 11 is provided on one side of the mesh cover 10. The fan blade 30 is disposed inside the mesh cover 10. The drive mechanism 50 is detachably connected to the mounting structure 11. The drive mechanism 50 is provided with a drive shaft 51, which is connected to the fan blade 30. At least one of the mounting structure 11 and the fan blade 30 is integrally provided with a limiting structure. The limiting structure is used to limit the relative movement of the mounting structure 11 and the fan blade 30 when the mounting structure 11 and the drive mechanism 50 are disassembled.

[0024] In this application, the blower device 100 can be a wall-mounted fan, floor fan, desktop fan, hair dryer, etc. An air outlet space for accommodating the fan blades 30 can be formed inside the mesh cover 10, and multiple grid mesh holes or flow gaps connecting the air outlet space can be formed on the surfaces of opposite sides of the mesh cover 10. The drive mechanism 50 drives the fan blades 30 to rotate inside the mesh cover 10, so that the fan blades 30 can carry the air in the environment from one side of the mesh cover 10 into the air outlet space, and after the turbulence effect of the fan blades 30, an airflow of a certain speed is formed and blown out from the other side of the mesh cover 10, ensuring the stable blowing operation of the blower device 100. The mesh cover 10 can be formed by combining a front cover and a rear cover. The front cover and the rear cover can each be a half-cover structure. By combining the front cover and the rear cover to form an air outlet space, the fan blades 30 can be better protected, avoiding damage caused by collision with foreign objects during the operation of the fan blades 30, and preventing users from accidentally touching the operating fan blades 30. At this time, the mesh cover 10 can make the rear cover the air inlet side of the air blowing device 100 and the front cover the air outlet side of the air blowing device 100. By setting the mounting structure 11 on the rear cover, the drive mechanism 50 can be detached and connected to the rear cover, reducing the impact on the air outlet area of ​​the front cover. The blower device 100 can have a connecting shaft 33 on the side of the fan blade 30 facing the mounting structure 11, so that the fan blade 30 can extend the connecting shaft 33 through the mounting structure 11 to the side of the mounting structure 11 facing the drive mechanism 50, so that the drive shaft 51 can be connected with the connecting shaft 33 to realize the drive mechanism 50 to drive the fan blade 30. This setting can better pre-assemble the fan blade 30 and the mesh cover 10 into a whole, which is conducive to improving the ease of disassembly and assembly of the blower device 100. Alternatively, the drive shaft 51 can be extended through the mounting structure 11 into the mesh cover 10 and connected to the fan blade 30, so that the drive mechanism 50 can stably drive the drive shaft 51 to drive the fan blade 30 to operate, ensuring the stable operation of the blower device 100.

[0025] The technical solution of this utility model involves setting a limiting structure on at least one of the mounting structure 11 and the fan blade 30. This limiting structure increases the frictional force when the mesh cover 10 and the fan blade 30 come into contact, thereby limiting their relative movement. The integrated limiting structure design enhances the structural strength of the limiting structure and facilitates easier manufacturing of the mesh cover 10 and the fan blade 30, improving the structural stability and reliability of the blower device 100. Thus, when the blower device 100 is in its normal operating installation state, the mesh cover 10 can be fixedly mounted on the drive mechanism 50 using the mounting structure 11, and the drive shaft 51 of the drive mechanism 50 is connected to the fan blade 30, allowing the drive mechanism 50 to drive the fan blade 30 to rotate within the mesh cover 10. The spaced arrangement of the mounting structure 11 and the fan blade 30 effectively prevents the fan blade 30 from rotating, ensuring stable blowing operation of the blower device 100. When the blower device 100 needs to be disassembled, the mesh cover 10 can move away from the drive mechanism 50 along the axis of the drive shaft 51. When the mounting structure 11 moves to contact the fan blade 30, the mounting structure 11 and the limiting structure in the form of a protrusion on the fan blade 30 can abut against each other; or the protruding limiting structure can contact and abut against the relative surfaces of the mounting structure 11 or the fan blade 30, so that the friction between the mesh cover 10 and the fan blade 30 can be effectively increased under the abutment action of the limiting structure, so that the fan blade 30 can be stopped quickly when the mesh cover 10 is removed from the drive mechanism 50, avoiding damage to the fan blade 30 or the mesh cover 10 during the disassembly of the blower device 100, or even injury to the user, effectively reducing the safety hazards of the blower device 100, and further improving the practicality and reliability of the blower device 100.

[0026] See Figures 4 to 7 In one embodiment of the present invention, the limiting structure includes a first protrusion 111 and a second protrusion 311. The first protrusion 111 is located on the side of the mounting structure 11 facing the fan blade 30, and the second protrusion 311 is located on the side of the fan blade 30 facing the mounting structure 11. When the mounting structure 11 and the drive mechanism 50 are disassembled, the first protrusion 111 and the second protrusion 311 cooperate to abut against each other.

[0027] In this embodiment, the first protrusion 111 can be a protrusion structure distributed on the surface of the mounting structure 11, or a rack structure on the surface of the mounting structure 11, or a rib structure extending radially around the drive shaft on the surface of the mounting structure 11. Similarly, the second protrusion 311 can be multiple protrusions distributed on the surface of the fan blade 30, or a rack structure on the surface of the fan blade 30, or a rib structure extending radially around the drive shaft 51 on the surface of the fan blade 30. By using the first protrusion 111 on the surface of the mounting structure 11 and the second protrusion 311 on the surface of the fan blade 30 to form a limiting structure, when the mesh cover 10 moves to contact the fan blade 30, the first protrusion 111 and the second protrusion 311 abut against each other, effectively increasing the frictional force between the mounting structure 11 and the fan blade 30, so that after the mesh cover 10 is removed from the drive mechanism 50, it can quickly move axially and stop the fan blade 30, further improving the structural stability and reliability of the blowing device 100.

[0028] By setting up a protrusion and a second protrusion 311 to form a limiting structure, the first protrusion 111 can be integrally formed with the mounting structure 11 by injection molding or 3D printing technology, and the second protrusion 311 can be integrally formed with the fan blade 30 by injection molding or 3D printing technology. This makes it easier to produce and process the mounting structure 11 and the fan blade 30 into an integrally set limiting structure, further improving the manufacturing convenience of the mesh cover 10 and the fan blade 30, and reducing the production cost of the blowing device 100.

[0029] See Figures 4 to 7 In one embodiment of the present invention, the limiting structure includes at least two first protrusions 111, which are spaced apart around the drive shaft 51; the limiting structure also includes at least two first protrusions 311, which are spaced apart around the drive shaft 51.

[0030] In this embodiment, the spacing between two adjacent first protrusions 111 can be set to correspond to the width of the first protrusion 311, and the spacing between two adjacent first protrusions 311 can be set to correspond to the width of the first protrusion 111. When the blower device 100 is in the disassembled state, the mesh cover 10 is detached from the drive mechanism 50 and moves away from the drive mechanism 50. When the mesh cover 10 approaches the fan blade 30, the first protrusions 111 and the first protrusion 311 can mesh and abut against each other. This can better increase the frictional force between the mesh cover 10 and the fan blade 30, so that the mesh cover 10 can quickly stop the still-operating fan blade 30, better avoid the user being injured by the rotating fan blade 30 when disassembling the blower device 100, and further improve the practicality and structural reliability of the blower device 100.

[0031] The first protrusion 111 and the first protrusion 311 can be made of silicone, rubber or other gel materials. The toothed structure of the gel material can play a certain buffering role when the mesh cover 10 and the fan blade 30 come into contact with each other, which helps to further reduce the force of contact between the mesh cover 10 and the fan blade 30, better avoid the fan blade 30 being damaged by impact, and further improve the overall structural stability and reliability of the blowing device 100.

[0032] In one embodiment of this utility model, under the condition that the mounting structure 11 and the drive mechanism 50 are connected and installed, the distance between the first protrusion 111 and the second protrusion 311 along the axial direction of the drive shaft 51 is defined as L1; under the condition that the mounting structure 11 and the drive mechanism 50 are disassembled, the distance that the mesh cover 10 moves relative to the drive mechanism 50 along the axial direction of the drive shaft 51 is defined as L2, where L1 < L2.

[0033] In this embodiment, after the mesh cover 10 is detached from the drive mechanism 50, it can move along the axial direction of the drive shaft 51 to ensure stable separation of the mesh cover 10 from the drive mechanism 50 and to allow the mesh cover 10 to move to contact the fan blade 30, so that the mesh cover 10 can quickly stop the fan blade 30 in the disassembled state. By setting the path L2 of the mesh cover 10 detached from the drive mechanism 50 in the disassembled state to be greater than the distance L1 between the first protrusion 111 and the second protrusion 311 in the installed state, the mounting structure 11 can stably contact the fan blade 30 during the process of detaching from the drive mechanism 50 and moving away from the drive mechanism 50 axially, ensuring stable abutment friction between the first protrusion 111 and the second protrusion 311, so that the removal of the mesh cover 10 can quickly stop the fan blade 30, further improving the structural stability and reliability of the blower device 100.

[0034] In this way, by making the moving path of the mesh cover 10 when it is removed greater than the distance between the first protrusion 111 and the second protrusion 311 in the installed state, the mesh cover 10 can also move the fan blade 30 away from the drive mechanism 50 when it is removed, so as to realize the synchronous disassembly of the mesh cover 10 and the fan blade 30, and further improve the ease of disassembly and assembly of the blower 100.

[0035] At this time, the blower device 100 can be installed by magnetically connecting the fan blade 30 and the drive shaft 51; or in the installed state, the side of the fan blade 30 facing away from the drive mechanism 50 can be rotatably connected to the inner wall of the mesh cover 10, and the drive shaft 51 can be axially abutted against the fan blade 30, so that the drive shaft 51 and the mesh cover 10 can axially limit the fan blade 30. At this time, a connecting groove can be provided at the end of the fan blade 30 facing the drive mechanism 50, and a protrusion is provided on the periphery of the drive shaft 51 to be locked in the connecting groove, so as to ensure the stable drive of the fan blade 30 by the drive mechanism 50. When the blower device 100 is in the disassembled state, the mesh cover 10 is removed from the drive mechanism 50, and the axial limitation of the fan blade 30 by the mesh cover 10 and the drive shaft 51 can be released.

[0036] Furthermore, by adopting the above-mentioned connection method between the fan blade 30 and the drive shaft 51, when the screen 10 is removed from the drive mechanism 50, the fan blade 30 can be driven to detach from the drive shaft 51 along the axial direction of the drive shaft 51, so that the screen 10 and the fan blade 30 can be disassembled and assembled together. This is beneficial for the fan blade 30 and the screen 10 to be disassembled and assembled as a whole component, further improving the convenience and practicality of disassembly and assembly of the blower device 100.

[0037] See Figure 2 and Figure 3 In one embodiment of the present invention, the mounting structure 11 is provided with a limiting boss 113 on the side facing the fan blade 30, and the fan blade 30 is provided with a limiting groove 313 on the side facing the mounting structure 11. At least one of the inner wall of the limiting groove 313 and the surface of the limiting boss 113 is provided with a limiting structure.

[0038] In this embodiment, by providing a limiting boss 113 protruding from the mounting structure 11, and by having at least a portion of the limiting boss 113 located in the limiting groove 313 of the fan blade 30, the cooperation between the limiting boss 113 and the limiting groove 313 facilitates a reduction in the thickness of the fan blade 30 and the mounting structure 11. This allows for a thinner and lighter structural design for the fan cover 10 and the fan blade 30 of the blower device 100, simplifying the miniaturization of the blower device 100. Simultaneously, by providing a limiting structure on at least one of the inner wall of the limiting groove 313 and the surface of the limiting boss 113, the cooperation between the limiting groove 313 and the limiting boss 113 minimizes the distance between the fan blade 30 and the mounting structure 11. This allows for a faster and more effective increase in friction between the mounting structure 11 and the fan blade 30 when the fan cover 10 is removed from the drive mechanism 50, thereby stopping the fan blade 30 and better preventing damage to the fan blade 30 or the fan cover 10.

[0039] Furthermore, the cooperation between the limiting boss 113 and the limiting groove 313 helps to prevent the fan blade 30 from falling along the axis perpendicular to the drive shaft 51 when the mesh cover 10 is removed from the drive mechanism 50. This is because the peripheral side of the limiting boss 113 abuts against the inner wall of the limiting groove 313. This helps to avoid the possibility of the fan blade 35 colliding with the inner wall of the mesh cover 10 during the disassembly process, thus further improving the overall structural stability and reliability of the blower device 100.

[0040] See Figure 2 , Figure 3 , Figure 6 and Figure 7 In one embodiment of the present invention, the fan blade 30 is provided with an abutment ring 315 on the side facing the mounting structure 11. The abutment ring 315 is arranged around the drive shaft 51 and extends along the axial direction of the drive shaft 51. At least one of the end face of the abutment ring 315 and the surface of the mounting structure 11 is provided with a limiting structure.

[0041] In this embodiment, the fan blade 30 may include a central rotating body 31 and blades 35 around the rotating body 31. In order for the blowing device 100 to have a better blowing effect, the blades 35 may be connected to the rotating body 31 at a certain angle. By extending one side of the fan blade 30 outward with an abutment ring 315, the abutment ring 315 can maintain a certain distance between the blade 35 of the fan blade 30 and the inner wall of the mesh cover 10, avoiding contact interference between the fan blade 30 and the inner wall of the mesh cover 10 during operation. At the same time, when the fan blade 30 is installed, the abutment ring 315 can make the distance between the fan blade and the mounting structure 11 smaller. Thus, by setting a limiting structure on at least one of the end face of the abutment ring 315 and the surface of the mounting structure 11, the mounting structure 11 can quickly contact the fan blade 30 when the mesh cover 10 is removed from the drive mechanism 50. The abutment friction of the limiting structure can be used to stop the running fan blade 30 more quickly, achieving a more reasonable overall structural design of the blowing device 100 and further improving the structural stability and reliability of the blowing device 100.

[0042] The use of annular abutment ring 315 reduces the distance between the installation structure 11 and the fan blade 30 in the installation state, which also helps to reduce the overall structural size of the fan blade 30, reduce the production cost of the fan blade 30, and further improve the practicality and reliability of the blowing device 100.

[0043] See Figures 8 to 10 In one embodiment of the present invention, the drive mechanism 50 and / or the mesh cover 10 are provided with a pushing structure 531. Under the condition that the mounting structure 11 and the drive mechanism 50 are disassembled, the pushing structure 531 can drive the mesh cover 10 away from the drive mechanism 50 along the axial direction of the drive shaft 51.

[0044] In this embodiment, a pushing structure 531 is provided between the mesh cover 10 and the driving mechanism 50. This pushing structure 531 can be a linkage structure that assembles and disassembles with the mesh cover 10, such as a guide ramp or guide push rod. When the mesh cover 10 is detached from the driving mechanism 50, it can abut against the mesh cover 10 and drive it away from the driving mechanism 50. Alternatively, the pushing structure 531 can be a structure with a certain elasticity, such as a spring or soft rubber. When the mesh cover 10 and the driving mechanism 50 are assembled, the pushing structure 531 is compressed and undergoes elastic deformation, allowing it to recover its elastic deformation and drive the mesh cover 10 away from the driving mechanism 50 when it is detached. Of course, the pushing structure 531 can also adopt other structural forms, which are not limited in this application, as long as they can provide a certain pushing effect on the mesh cover 10 when it is detached.

[0045] Therefore, under the action of the jacking structure 531, the jacking action of the jacking structure 531 on the mesh cover 10 can be used to make the mesh cover 10 drive the fan blade 30 to move away from the drive mechanism 50 along the axial direction of the drive shaft 51. This allows the mesh cover 10 to move towards the fan blade 30 more quickly and stop the fan blade 30 under the force of the jacking structure 531, thereby further improving the practicality and structural reliability of the blower device 100.

[0046] When the fan blade 30 and the drive shaft 51 are connected by magnetic attraction for easy disassembly and assembly, or when the fan blade 30 is axially limited by the mesh cover 10 and the drive shaft 51, and the fan blade 30 and the drive shaft 51 are installed by radial snap-fit, the push structure 531 pushes the mesh cover 10 away from the drive mechanism 50 during the disassembly process. This also helps to simultaneously drive the fan blade 30 away from the drive shaft 51 by a certain distance when the mesh cover 10 is removed from the drive mechanism 50. There is no need to disassemble the mesh cover 10 and then remove the fan blade 30 from the drive shaft 51. This allows the mesh cover 10 and the fan blade 30 to be more easily removed from the drive mechanism 50 as a whole, further improving the ease of disassembly and assembly and the structural reliability of the blower 100.

[0047] In one embodiment of this utility model, the fan blade 30 is magnetically connected to the drive shaft 51.

[0048] In this embodiment, by using a magnetic connection between the drive shaft 51 and the fan blade 30, a magnet can be placed between them. The magnetic attraction of the magnet secures the drive shaft 51 and the fan blade 30 together, ensuring stable drive of the fan blade 30 by the drive mechanism 50 via the drive shaft 51. This magnetic connection allows the fan blade 30 to be easily mounted on the drive shaft 51, achieving axial positioning and connection between the fan blade 30 and the drive shaft 51 through magnetic attraction, thus facilitating easier assembly and disassembly of the fan blade 30 and the drive shaft 51.

[0049] Meanwhile, under the pushing action of the pushing structure 531, the mesh cover 10 can better stop the fan blade 30 and drive the fan blade 30 away from the drive shaft 51 along the axial direction when it is disassembled. This helps to weaken the magnetic attraction between the fan blade 30 and the drive shaft 51, so that the mesh cover 10 and the fan blade 30 can be more easily separated from the drive mechanism 50 as a whole, further improving the ease of disassembly and assembly and the practicality of the blower 100.

[0050] See Figure 8 and Figure 9 In one embodiment of the present invention, the drive mechanism 50 is provided with one of a slot 53 or a buckle 115 on the side facing the mounting structure 11, and the mounting structure 11 is provided with the other of a slot 53 or a buckle 115 on the side facing the drive mechanism 50. The slot 53 extends in the direction surrounding the drive shaft 51, and the buckle 115 is slidably engaged with the slot 53.

[0051] In this embodiment, the drive mechanism 50 can be provided with a slot 53 facing the surface of the mesh cover 10, and the mesh cover 10 can be provided with a buckle 115 protruding from the surface of the drive mechanism 50; or, the drive mechanism 50 can be provided with a buckle 115 protruding from the surface of the mesh cover 10, and the mesh cover 10 can be provided with a slot 53 facing the surface of the drive mechanism 50. By utilizing the engagement of the buckle 115 in the slot 53, better assembly and positioning of the mesh cover 10 can be achieved, ensuring the stable assembly of the blower device 100.

[0052] By extending the slot 53 along the direction surrounding the drive shaft 51, the slot 53 can be configured with an arc-shaped groove structure. This allows the buckle 115 to be inserted into the slot 53 and then slid a certain distance along the extension direction of the slot 53 before engaging with it. Furthermore, the mesh cover 10 can be rotated to engage and disassemble with the drive mechanism 50, effectively improving the ease of assembly and disassembly. The mesh cover 10 can be rotated in one direction until the buckle 115 engages with the slot 53, achieving a secure connection between the mesh cover 10 and the drive mechanism 50. Rotating the mesh cover 10 in the opposite direction until the buckle 115 disengages from the slot 53 separates the mesh cover 10 from the drive body. This reduces the assembly steps between the mesh cover 10 and the drive mechanism 50, improving the assembly efficiency and installation convenience of the blower device 100.

[0053] See Figure 9 and Figure 10In one embodiment of the present invention, the jacking structure 531 is a ramp, which is located on the inner wall of the slot 53 facing the drive shaft 51 in the axial direction. The ramp abuts against the buckle 115. The ramp has a top 5311 and a bottom 5313. The ramp is inclined in the direction from the top 5311 to the bottom 5313. The buckle 115 engages with the slot 53 during the movement of the ramp from the top 5311 to the bottom 5313.

[0054] In this embodiment, by using the buckle 115 to slide in the slot 53, the mesh cover 10 is set in a rotating disassembly and assembly manner, so that the push structure 531 is set in a ramp at this time, and the ramp is set on the inner wall of the slot 53 facing the central axis direction of the drive shaft 51, so that the ramp is set at an inclination in the slot 53. Furthermore, when the buckle 115 is inserted into the slot 53, it can first abut against the top of the slope 5311 at the highest point of the slope, allowing the buckle 115 to slide within the slot 53 towards the bottom of the slope 5313 at the lowest point of the slope, so that the mesh cover 10 can be stably installed close to the drive mechanism 50. When the mesh cover 10 is rotated in the opposite direction to remove it from the drive mechanism 50, the buckle 115 can slide in the opposite direction from the bottom of the slope 5313 at the lowest point of the slope to the top of the slope 5311 at the highest point of the slope. Then, under the guiding and pushing action of the slope, the mesh cover 10 can be moved a certain distance away from the drive mechanism 50 along the central axis of the drive shaft 51 when it is removed, so that the mesh cover 10 can be quickly moved along the axial direction to the fan blade 30 to stop its operation. In addition, by using the slope setting inside the slot 53 for the pushing structure 531, a better disassembly and assembly linkage design can be achieved when the mesh cover 10 is disassembled and assembled on the drive mechanism 50, further improving the ease of disassembly and assembly and the practicality of the blower 100.

[0055] See Figures 8 to 10 In one embodiment of the present invention, the number of slots 53 is at least two, and the at least two slots 53 are arranged at intervals around the drive shaft 51. The number of buckles 115 is at least two, and one buckle 115 is correspondingly engaged with one slot 53.

[0056] In this embodiment, at least two slots 53 and buckles 115 can be provided between the drive mechanism 50 and the mesh cover 10, so that at least two buckles 115 are provided in a one-to-one correspondence with at least two slots 53. Multiple buckles 115 and slots 53 around the drive shaft 51 can be used to engage and secure the mesh cover 10, thereby better preventing the mesh cover 10 from being misaligned or offset during installation and ensuring the stable operation of the blower 100.

[0057] When the push structure 531 adopts the slope of the inner wall of the slot 53, the slope can be set in each slot 53 so that the mesh cover 10 can be moved axially better by the mutual pushing action of multiple buckles 115 and the slope, thereby further improving the ease of disassembly and assembly and the practicality of the blower 100.

[0058] See Figure 6 and Figure 7 In one embodiment of the present invention, the fan blade 30 includes a rotating body 31 and a connecting shaft 33. A plurality of blades 35 are arranged around the periphery of the rotating body 31, and the connecting shaft 33 is connected to the rotating body 31. The mounting structure 11 is provided with a clearance hole 117, the connecting shaft 33 passes through the clearance hole 117, and the drive shaft 51 is connected to the connecting shaft 33.

[0059] In this embodiment, by connecting the connecting shaft 33 to the side of the rotating body 31 facing the mounting structure 11, when the mesh cover 10 and the fan blade 30 are assembled together, the connecting shaft 33 can pass through the clearance hole 117 of the mounting structure 11, so that the connecting shaft 33 extends out of the side of the mounting structure 11 facing away from the fan blade 30. Thus, the mesh cover 10 and the fan blade 30 can be pre-assembled into an integral part, and then the connecting shaft 33 can be connected to the drive shaft 51. At the same time, when the mesh cover 10 is removed from the drive mechanism 50, the connection between the connecting shaft 33 and the drive shaft 51 can be removed simultaneously, so that the mesh cover 10 and the fan blade 30 can be removed from the drive mechanism 50 as a whole, further improving the ease of disassembly and assembly of the blower device 100.

[0060] The connecting shaft 33 can be provided with mounting holes for the drive shaft 51 to insert into, and the connecting shaft 33 can also have a notch at the end opposite to the rotating body 31, so that the circumferential protrusion of the drive shaft 51 can engage with the notch to stably drive the fan blade 30 to rotate. The drive shaft 51 and the connecting shaft 33 can be installed using a magnetic connection, so that when the screen 10 is removed from the drive mechanism 50, the fan blade 30 can be axially separated from the drive shaft 51, further improving the ease of disassembly and assembly and the practicality of the blower device 100.

[0061] See Figure 11 and Figure 12 In one embodiment of the present invention, the blower device 100 further includes a control switch 70, which is disposed on the drive mechanism 50 and electrically connected to the drive mechanism 50. The mounting structure 11 triggers the control switch 70 when it is connected to the drive mechanism 50 and separates from the control switch 70 when it is disassembled from the drive mechanism 50.

[0062] In this embodiment, by setting a control switch 70 on the drive mechanism 50 and electrically connecting the control switch 70 to the control system of the drive mechanism 50, the control switch 70 can be triggered when the mesh cover 10 is assembled and connected to the drive mechanism 50. The control switch 70 can remain normally closed after the mesh cover 10 is stably assembled. At this time, the control system can accurately identify the stable assembly of the mesh cover 10 and the drive mechanism 50 through the trigger signal of the control switch 70, and can stably execute the operation of the blower 100. As the mesh cover 10 is removed from the drive mechanism 50, it separates from the control switch 70. This allows the control switch 70 to remain in a normally open state without being triggered. Consequently, the control system receives feedback signals from the control switch 70 indicating that the mesh cover 10 has been removed. This allows the blower device 10 to be in a power-off or standby state. Furthermore, when the mesh cover 10 is removed from the drive mechanism 50, the control switch 70 can be used to promptly power off and stop the drive mechanism 50. This ensures that the movement of the mesh cover 10 axially away from the drive mechanism 50 can more stably stop the fan blades 30, thereby reducing safety hazards during the disassembly and assembly of the blower device 100. This results in more stable and reliable control of the blower device 100, further improving its practicality and reliability.

[0063] The control switch 70 can be a micro switch, with a protrusion provided on the side of the mesh cover 10 facing the drive mechanism 50, so that the protrusion can abut against the micro switch when the mesh cover 10 is assembled onto the drive mechanism 50; alternatively, the control switch 70 can be an infrared switch, so that the infrared light from the infrared switch can be blocked when the mesh cover 10 is assembled onto the drive mechanism 50 to trigger the control switch 70; or, the control switch 70 can be a Hall sensor, in which case a corresponding magnetic element can be provided on the mesh cover 10, so that the Hall sensor can be triggered when the mesh cover 10 is assembled onto the drive mechanism 50. There are many forms of the control switch 70, and this application does not limit this one.

[0064] See Figure 12 In one embodiment of this utility model, the drive mechanism 50 is provided with a slot 53 on the side facing the mounting structure 11, and the mounting structure 11 is provided with a buckle 115 on the side facing the drive mechanism 50. The slot 53 extends in the direction surrounding the drive shaft 51, and the buckle 115 is slidably engaged with the slot 53. The control switch 70 is provided in the slot 53. The buckle 115 triggers the control switch 70 in the installed state and separates from the control switch 70 in the disassembled state.

[0065] In this embodiment, by setting a slot 53 on the drive mechanism 50 and setting a corresponding buckle 115 on the mounting structure 11, the buckle 115 and the slot 53 can be rotated and engaged, so as to realize a more convenient way to disassemble and assemble the mesh cover 10 and the drive mechanism 50, and further improve the convenience and practicality of disassembling and assembling the blower 100.

[0066] By placing the control switch 70 in the slot 53, the buckle 115 can move within the slot 53 and engage with it, thus triggering the control switch 70 to respond. Furthermore, when the buckle 115 is removed from the slot 53, it can promptly separate from the control switch 70, allowing the control switch 70 to promptly drive the mechanism 50 to cut off power. This achieves more stable and reliable overall machine control, further improving the practicality and reliability of the blower device 100.

[0067] 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 blower device, characterized in that, include: A mesh cover, wherein an installation structure is provided on one side of the mesh cover; Fan blades, the fan blades being disposed within the mesh cover; as well as A drive mechanism is detachably connected to the mounting structure, and the drive mechanism is provided with a drive shaft, which is connected to the fan blade; Wherein, at least one of the mounting structure and the fan blade is integrally provided with a limiting structure, the limiting structure being used to limit the relative movement of the mounting structure and the fan blade when the mounting structure and the drive mechanism are disassembled.

2. The blower device as described in claim 1, characterized in that, The limiting structure includes a first protrusion and a second protrusion, the first protrusion being disposed on the side of the mounting structure facing the fan blade, and the second protrusion being disposed on the side of the fan blade facing the mounting structure; When the mounting structure and the drive mechanism are disassembled, the first protrusion and the second protrusion engage and abut against each other.

3. The blower device as described in claim 2, characterized in that, The limiting structure includes at least two first protrusions, which are spaced apart around the drive shaft. The limiting structure includes at least two second protrusions, which are spaced apart around the drive shaft.

4. The blower device as described in claim 2, characterized in that, Under the condition that the mounting structure and the drive mechanism are connected and installed, the distance between the first protrusion and the second protrusion in the axial direction along the drive shaft is defined as L1; Under the condition that the mounting structure and the drive mechanism are disassembled, the distance that the mesh cover moves relative to the drive mechanism along the axial direction of the drive shaft is defined as L2, where L1 < L2.

5. The blower device as described in claim 1, characterized in that, The mounting structure has a limiting boss on the side facing the fan blade, and the fan blade has a limiting groove on the side facing the mounting structure. At least a portion of the limiting boss is located in the limiting groove, and at least one of the inner wall of the limiting groove and the surface of the limiting boss is provided with the limiting structure. And / or, the fan blade is provided with an abutment ring on the side facing the mounting structure, the abutment ring is arranged around the drive shaft and extends along the axial direction of the drive shaft, and at least one of the end face of the abutment ring and the surface of the mounting structure is provided with the limiting structure.

6. The blower device as claimed in claim 1, characterized in that, The drive mechanism and / or the mesh cover are provided with a pushing structure. When the mounting structure and the drive mechanism are disassembled, the pushing structure can drive the mesh cover away from the drive mechanism along the axial direction of the drive shaft.

7. The blower device as described in claim 6, characterized in that, The fan blades are magnetically connected to the drive shaft.

8. The blower device as described in claim 6, characterized in that, The drive mechanism has one of a slot or a buckle on the side facing the mounting structure, and the mounting structure has the other of a slot or a buckle on the side facing the drive mechanism. The slot extends in a direction surrounding the drive shaft, and the buckle is slidably engaged with the slot.

9. The blower device as described in claim 8, characterized in that, The jacking structure is a ramp, which is located on the inner wall of the slot facing the drive shaft in the axial direction, and the ramp abuts against the buckle; The slope has a top and a bottom, and the slope is inclined in the direction from the top to the bottom. The buckle engages with the slot during the movement of the buckle in the direction from the top to the bottom.

10. The blower device as claimed in claim 1, characterized in that, The fan blade includes a rotating body and a connecting shaft. Multiple blades are arranged around the periphery of the rotating body, and the connecting shaft is connected to the rotating body. The mounting structure is provided with a clearance hole, the connecting shaft passes through the clearance hole, and the drive shaft is connected to the connecting shaft. And / or, the blower further includes a control switch, which is located on and electrically connected to the drive mechanism, wherein the mounting structure triggers the control switch when it is connected to the drive mechanism and separates from the control switch when it is disassembled from the drive mechanism.

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