Blowing device and fan blade adjusting method thereof

Abstract

The embodiment of the invention discloses an air blowing device and a fan blade adjusting method thereof, and relates to the technical field of air blowing devices.The air blowing device comprises a motor, a fan blade assembly and a pushing structure, and the motor is provided with a motor shaft; the fan blade assembly comprises a fan blade seat and a plurality of blades, the motor shaft is sleeved with the fan blade seat, and the blades are rotationally connected to the peripheral side of the fan blade seat; the pushing structure is connected with at least one blade and movably arranged on the motor shaft in a sleeving mode, and the pushing structure can move along the motor shaft and can drive the blades to rotate relative to the fan blade base. The technical scheme provided by the embodiment of the invention has the technical effect.

Description

Technical Field

[0001] The embodiments in this application relate to the field of blower technology, and in particular to a blower and a method for adjusting its blades. Background Technology

[0002] In related technologies, when fans, hair dryers and other air blowing devices use axial flow fans for blowing, each blade can be designed to rotate relative to the blade holder, so that the pitch between the blades can be adjusted by rotating the blades, thereby adjusting the air outlet angle and air outlet range.

[0003] However, most blower devices integrate the components that drive the blade rotation onto the blade holder, resulting in a large overall size of the blower and cumbersome operation of adjusting the blade rotation components, which reduces the practicality and reliability of the blower device. Summary of the Invention

[0004] This application proposes several embodiments of a blower and a method for adjusting its blades, aiming to simplify the overall structure of the blower, enable convenient operation of the blower, and improve its practicality.

[0005] One embodiment of this application provides a blower device including a motor, a fan blade assembly, and a pushing structure. The motor has a motor shaft; the fan blade assembly includes a fan blade seat and multiple blades, the fan blade seat is sleeved on the motor shaft, and the multiple blades are rotatably connected to the outer periphery of the fan blade seat; the pushing structure is connected to at least one of the blades and is movably sleeved on the motor shaft, the pushing structure can move along the motor shaft, and can drive the blades to rotate relative to the fan blade seat.

[0006] In one embodiment, a connecting sleeve is fitted onto the connecting shaft, and at least two positioning grooves are arranged around the periphery of the connecting sleeve. The at least two positioning grooves are arranged side by side in sequence, and the groove depth of any two adjacent positioning grooves is inconsistent along the axial direction. The pushing structure is provided with positioning ribs, and the positioning ribs can be engaged with any of the positioning grooves.

[0007] In one embodiment, the positioning groove has an opening facing the side wall of the blade seat, the pushing structure includes a push rod assembly, the push rod assembly is sleeved on the connecting sleeve and connected to at least one of the blades, the push rod assembly is movably arranged along the axial direction of the motor shaft, and at least one of the positioning ribs is located on the inner circumferential surface of the push rod assembly.

[0008] The pushing structure also includes a first return member, which connects the push rod assembly and the fan blade seat to drive the push rod assembly away from the fan blade seat.

[0009] In one embodiment, the push rod assembly includes a push rod body, a shift collar, and a connector arranged sequentially along the axial direction of the motor shaft. The connector is connected to at least one of the blades, and the first return member connects the fan blade seat and the connector. One end of the push rod body is provided with at least two retaining teeth, the inner wall of the shift collar is provided with the positioning rib, one end of the shift collar abuts against the connector, and the other end of the shift collar is provided with a pushing protrusion that engages with any of the retaining teeth.

[0010] In one embodiment, one end of the push protrusion is provided with a first inclined surface, which abuts against the side wall of the locking tooth.

[0011] In one embodiment, the inner sidewall of the positioning groove is provided with a second inclined surface, and the sidewall of the positioning rib is provided with a third inclined surface, the second inclined surface and the third inclined surface are configured to cooperate with each other; the inclination directions of the first inclined surface, the second inclined surface and the third inclined surface are consistent.

[0012] In one embodiment, the positioning groove includes a first positioning groove, a second positioning groove, and a third positioning groove arranged sequentially around the motor shaft. The axial depth of the first positioning groove is greater than the axial depth of the second positioning groove, and the axial depth of the second positioning groove is greater than the axial depth of the third positioning groove.

[0013] In one embodiment, the connector includes a main body and a plurality of connecting rods connected to the main body. The main body is axially movably sleeved on the motor shaft. The gear shift collar abuts against the main body. The first return member connects the main body and the blade seat. One of the connecting rods is connected to one of the blades.

[0014] In one embodiment, the sidewall of the connecting rod is provided with a drive rack, the drive rack extends axially along the motor shaft, and a plurality of driven teeth are arranged around the periphery of the blade, the plurality of driven teeth meshing with the drive rack.

[0015] In one embodiment, the fan blade seat is provided with a sleeve fitted onto the motor shaft, the connecting sleeve is connected to the sleeve, and the connecting member is fitted onto the sleeve; the outer diameter of the sleeve is smaller than the outer diameter of the connecting sleeve, the circumference of the connecting sleeve is provided with the positioning groove, and the end of the connecting sleeve facing the sleeve is provided with the opening.

[0016] In one embodiment, the sleeve has one of a first limiting groove or a first limiting rib on its circumference, and the connector has the other of a first limiting groove or a first limiting rib on its inner wall. The first limiting groove and the first limiting rib extend axially along the motor shaft, and the first limiting rib is inserted into the first limiting groove. And / or, the connecting sleeve has one of a second limiting groove or a second limiting rib on its circumference, and the push rod body has the other of a second limiting groove or a second limiting rib on its inner wall. The second limiting groove and the second limiting rib extend axially along the motor shaft, and the second limiting rib is inserted into the second limiting groove.

[0017] In one embodiment, the blower further includes a mesh cover, the fan blade assembly and the pusher structure are disposed inside the mesh cover, the mesh cover has a through hole coaxially arranged with the motor shaft, and a receiving platform protrudes from the inner wall of the through hole; the mesh cover is provided with an operation button, the operation button passes through the through hole and is sleeved on one end of the pusher body, a bearing is installed inside the operation button, and one end of the pusher body is inserted into the inner ring of the bearing.

[0018] In one embodiment, the mesh cover is further provided with a second return element, which is connected to the operation button and the receiving platform.

[0019] This application also proposes a method for adjusting the blades of a blower, applied to the blower as described in any one of claims 1 to 14, wherein the method for adjusting the blades of the blower includes:

[0020] The control pusher structure moves closer to the fan blade seat along the axial direction of the motor shaft; The push mechanism moves a first stroke along the axial direction of the motor shaft, so that the push mechanism drives the blades to rotate relative to the fan blade seat to a first angle.

[0021] In one embodiment, after the step of moving the jacking structure to the first stroke so that the jacking structure drives the blade to rotate relative to the blade seat to the first angle, the method further includes: The drive mechanism moves back a second stroke in a direction away from the blade seat to limit the angle of the blade after rotation.

[0022] In several embodiments provided in this application, a pushing structure is fitted onto the motor shaft and connected to at least one blade. By moving the pushing structure axially along the motor shaft, the blade rotates around the blade holder, thereby adjusting the blade's angle of attack and changing the blowing angle and range of the blower. When the pushing structure rotates the blade to the desired angle of attack, it can be fixed in the corresponding position using a snap-fit ​​or magnetic structure. This ensures the pushing structure stably maintains the adjusted blade angle of attack, guaranteeing stable operation of the blower. This allows for more convenient adjustment of the blade's angle of attack without the need for cumbersome gear mechanisms, effectively improving the ease of operation and practicality of the blower. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments or prior art of this application, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 A cross-sectional view of an embodiment of the blower provided in this application.

[0025] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0026] Figure 3 for Figure 1 A schematic diagram of the fan blade assembly and the jacking structure of the blower.

[0027] Figure 4 for Figure 3 A magnified view of a section at point B.

[0028] Figure 5 for Figure 1 A schematic diagram of the structural fit of the push structure, sleeve and connecting sleeve of an embodiment of the blower device.

[0029] Figure 6 for Figure 1 An exploded view of an embodiment of the pusher structure, sleeve, and connecting sleeve of the blower device.

[0030] Figure 7 This is a schematic diagram of the structure of the sleeve and connecting sleeve of the blower provided in this application.

[0031] Figure 8 A schematic diagram of the structure of a push rod body of the blower provided in this application.

[0032] Figure 9 This is a schematic diagram of the structure of a baffle collar of the blower device provided in this application.

[0033] Figure 10 A schematic diagram of the structure of an embodiment of the connector of the blower provided in this application.

[0034] Explanation of icon numbers: 100. Blowing device; 10. Motor; 11. Motor shaft; 311. Sleeve; 3111. First limiting groove; 20. Connecting sleeve; 20a. Positioning groove; 20b. First positioning groove; 20c. Second positioning groove; 20d. Third positioning groove; 201. Second inclined surface; 203. Second limiting groove; 30. Fan blade assembly; 31. Fan blade seat; 33. Blade; 331. Driven tooth; 50. Pushing structure; 51. Push rod assembly; 511. Push rod body; 51 11. Clamping tooth; 5113. Second limiting rib; 513. Gear collar; 5131. Pushing protrusion; 5132. First inclined surface; 5133. Positioning rib; 5134. Third inclined surface; 515. Connecting piece; 5151. Main body; 5153. Connecting rod; 5155. Drive rack; 5157. First limiting rib; 53. First return piece; 70. Mesh cover; 71. Through hole; 711. Receiving platform; 73. Operating button; 731. Bearing; 75. Second return piece. Detailed Implementation

[0035] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of several embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0036] It should be noted that if multiple embodiments of this application 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.

[0037] Furthermore, if multiple embodiments of this application 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 implies 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 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 in this application.

[0038] In related technologies, when fans, hair dryers, and other air-blowing devices use axial flow fans, each blade can be designed to rotate relative to the blade holder. This allows for adjustment of the blade pitch, thereby regulating the airflow angle and range. However, most air-blowing devices integrate the components that drive the blade rotation onto the blade holder, resulting in a larger overall size and more cumbersome operation for adjusting the blade rotation, thus reducing the practicality and reliability of the air-blowing device.

[0039] It should be noted that most existing blower devices have a receiving cavity inside the blade holder, allowing the blade tip to pass through the circumference of the blade holder and be inserted into the receiving cavity. A bevel gear is installed at the blade tip, allowing the blade to be rotatably mounted on the circumference of the blade holder. In this case, the blade's rotation axis can be perpendicular to the blade holder's rotation axis. By setting a rotating rod on the blade holder and engaging with the bevel gear, the rotating rod can be rotated on the blade holder, causing the blade to rotate around the circumference of the blade holder. This allows adjustment of the blade's airfoil angle of attack, enabling adjustment of the pitch of adjacent blades and changing the air outlet angle and range of the blower. However, when the blower is operating, the rotating rod on the blade holder rotates with the blade holder. The blower must be stopped before operating the rotating rod to rotate the blade around the circumference of the blade holder, making it impossible to adjust the blade pitch while the blower is blowing air, resulting in cumbersome operation. To address the above problems, this application proposes a blower device 100.

[0040] Please see Figures 1 to 3In one embodiment of this application, the blower 100 includes a motor 10, a fan blade assembly 30, and a pusher structure 50. The motor 10 is provided with a motor shaft 11. The fan blade assembly 30 includes a fan blade seat 31 and a plurality of blades 33. The fan blade seat 31 is sleeved on the motor shaft 11, and the plurality of blades 33 are rotatably connected to the outer periphery of the fan blade seat 31. The pusher structure 50 is connected to at least one blade 33 and is movably sleeved on the motor shaft 11. The pusher structure 50 can move along the motor shaft 11 and can drive the blades 33 to rotate relative to the fan blade seat 31.

[0041] In this application, the motor shaft 11 of the motor 10 is connected to the fan blade seat 31. The fan blade seat 31 can be provided with a through hole coaxial with the motor shaft 11, allowing the motor shaft 11 to pass through the through hole. The periphery of the motor shaft 11 and the inner wall of the through hole are respectively provided with a groove and a protrusion structure for engagement. Alternatively, a screw can be used to connect the fan blade seat 31 to the motor shaft 11, so that when the motor 10 drives the motor shaft 11 to rotate, it can stably drive the fan blade seat 31 to rotate, and the fan blade seat 31 drives the blades 33 connected to the periphery to rotate together, thereby realizing the blowing function of the blower.

[0042] By rotatably connecting the blade 33 to the periphery of the blade seat 31, a protrusion can be provided at the end of the blade 33, and a corresponding groove can be provided on the periphery of the blade seat 31; or a groove can be provided at the end of the blade 33, and a corresponding protrusion can be provided on the periphery of the blade seat 31. The protrusion is inserted into the groove, and the protrusion and the groove are limited only in the axial direction of the blade 33, so that the protrusion can rotate in the groove, and the blade 33 can rotate stably on the periphery of the blade seat 31. This is beneficial for adjusting the airfoil angle of the blade 33, that is, the pitch between the blades 33 can be changed by rotating the blade 33, thereby changing the air outlet angle and air outlet range of the blowing equipment.

[0043] Thus, by mounting a pusher structure 50 on the motor shaft 11, which can be a sleeve structure or a slider structure slidably mounted on the motor shaft 11, the pusher structure 50 can be connected to at least one blade 33. During the axial movement of the pusher structure 50 on the motor shaft 11, due to the rotational connection between the blade 33 and the fan blade seat 31, the pusher structure 50 can apply a certain circumferential tangential force to the blade 33 when moving axially, causing the blade 33 to rotate at a certain angle on the fan blade seat 31, thereby adjusting the airfoil angle of the blade 33, changing the air outlet angle and air outlet range of the blower, and effectively improving the practicality and reliability of the blower device 100. The pusher structure 50 and the blade 33 can be connected by a rack and pinion mechanism so that the pusher structure 50 can rotate the blade 33 when it moves along the axial direction of the motor shaft 11; or, the pusher structure 50 can be hinged to one end of the blade 33 by a connecting rod 5153, which can be achieved by a hinge or a pivot, so that the pusher structure 50 can pull the blade 33 to rotate when it moves along the axial direction of the motor shaft 11, thus ensuring stable adjustment of the airfoil angle of attack of the blade 33.

[0044] The pushing structure 50 can be engaged with the motor shaft 11 via a snap-fit ​​mechanism, so that when the pushing structure 50 moves along the axial direction of the motor shaft 11 to a certain position, it can be positioned at the upper limit of the motor shaft 11, maintaining the angle at which the pushing structure 50 drives the blade 33 to rotate. At this time, several slots arranged axially can be provided on the motor shaft 11, and corresponding protrusions can be provided on the pushing structure 50. When the pushing structure 50 moves axially and drives the blade 33 to rotate to the required angle, the protrusions can engage with the corresponding slots to limit the pushing structure 50 on the motor shaft 11. Alternatively, multiple magnetic poles can be arranged sequentially along the axial direction of the motor shaft 11, and magnetic attraction can be provided on the inner wall of the pushing structure 50. When the pushing structure 50 moves axially and drives the blade 33 to rotate to the required angle, the magnetic poles on the pushing structure 50 can engage with the corresponding magnetic poles on the motor shaft 11 to achieve a limiting position of the pushing structure 50 on the motor shaft 11. Alternatively, the pushing structure 50 can be divided into a pushing part and a linkage part. The linkage part can be a connecting rod 5153 structure connected to and rotating with the blade 33. One end of the linkage part is rotatably connected to the pushing part. The pushing part can move axially along the motor shaft 11 and, after moving a certain distance, can engage with the housing or mesh cover 70 of the blowing device 100 to achieve a stable limiting position of the pushing structure 50 after movement and to maintain the rotation angle of the blade 33. There are many other ways to limit the movement of the pushing structure 50, and this application does not limit this one.

[0045] Since the axial movement of the pusher structure 50 along the motor shaft 11 does not interfere with the rotation of the fan blade assembly 30 around the motor shaft 11, the blades 33 can be rotated by moving the pusher structure 50 during the operation of the blower device 100. This allows the blower device 100 to adjust the air outlet angle and air outlet range during operation, thereby improving the ease of operation and practicality of the blower device 100.

[0046] In one embodiment of this application, a pushing structure 50 is fitted onto the motor shaft 11 and connected to at least one blade 33. By moving the pushing structure 50 axially along the motor shaft 11, the blade 33 is driven to rotate around the fan blade seat 31, thereby adjusting the angle of attack of the blade 33 and changing the blowing angle and blowing range of the blower 100. When the pushing structure 50 drives the blade 33 to the desired angle of attack, the pushing structure 50 can be fixed in the corresponding position by a snap-fit ​​structure or a magnetic attraction structure. This ensures that the pushing structure 50 can stably maintain the adjusted angle of attack of the blade 33, guaranteeing the stable operation of the blower 100. This allows for more convenient adjustment of the angle of attack of the blade 33 without the need for a cumbersome gear mechanism to rotate the blade 33, effectively improving the ease of operation and practicality of the blower 100.

[0047] See Figures 5 to 7 In one embodiment of this application, a connecting sleeve 20 is sleeved on the motor shaft 11. At least two positioning grooves 20a are provided around the periphery of the connecting sleeve 20. The at least two positioning grooves 20a are arranged side by side in sequence, and the groove depth of any two adjacent positioning grooves 20a is inconsistent along the axial direction. The pushing structure 50 is provided with positioning ribs 5133, which can be snapped into any positioning groove 20a.

[0048] In this embodiment, by providing at least two positioning grooves 20a side by side around the periphery of the connecting sleeve 20, and making the groove depths of adjacent positioning grooves 20a inconsistent, the distance between the inner wall of the positioning groove 20a along the axial direction and the fan blade seat 31 can be inconsistent. When the positioning rib 5133 on the push structure 50 engages with the positioning groove 20a, the positioning rib 5133 can abut against the inner wall of the positioning groove 20a along the axial direction. The push structure 50 can be positioned at different positions on the connecting sleeve 20 according to the groove depth of the positioning groove 20a. In this way, the push structure 50 can rotate relative to the motor shaft 11 to engage the positioning rib 5133 with the corresponding positioning groove 20a, thereby limiting the movement of the push structure 50 on the motor shaft 11 and changing the position of the push structure 50 on the motor shaft 11. This allows the push structure 50 to stably drive the blade 33 to rotate at a certain angle, adjusting the airfoil angle of the blade 33, and achieving stable adjustment of the air outlet angle and air outlet range of the blower 100, further improving the structural stability and reliability of the blower 100.

[0049] The positioning groove 20a can be open on the side near the blade seat 31, allowing the pushing structure 50 to move along the axial direction of the motor shaft 11 towards the blade seat 31. After the positioning rib 5133 is removed from one positioning groove 20a, the pushing structure 50 is rotated to move the positioning rib 5133 to another positioning groove 20a. Then, the pushing structure 50 is moved away from the blade seat 31 along the axial direction of the motor shaft 11, thereby transferring the positioning rib 5133 from one positioning groove 20a to another. Since the groove depths of adjacent positioning grooves 20a are inconsistent along the axial direction, the position of the pushing structure 50 on the motor shaft 11 can be changed when the positioning rib 5133 is transferred to another positioning groove 20a and engaged. This allows the pushing structure 50 to maintain the angle of the blade 33 after rotation, achieving stable adjustment of the airfoil angle of the blade 33 and further improving the ease of operation of the blowing device 100.

[0050] See Figure 2 and Figure 6 In one embodiment of this application, the positioning groove 20a has an opening on the side wall facing the blade seat 31, and the push structure 50 includes a push rod assembly 51. The push rod assembly 51 is sleeved on the connecting sleeve 20 and connected to at least one blade 33. The push rod assembly 51 is movably arranged along the axial direction of the motor shaft 11, and at least one positioning rib 5133 is located on the inner circumferential surface of the push rod assembly 51.

[0051] In this embodiment, the positioning rib 5133 on the inner circumferential surface of the push rod assembly 51 cooperates with the positioning groove 20a on the connecting sleeve 20, so that when the push rod assembly 51 moves along the axial direction of the motor shaft 11 and drives the blade 33 to rotate relative to the fan blade seat 31, the positioning rib 5133 can be more easily engaged with the corresponding positioning groove 20a through the opening to limit the rotation angle of the blade 33, thereby achieving stable adjustment of the air outlet angle and air outlet size of the blower 100, and further improving the structural stability and reliability of the blower 100.

[0052] Furthermore, the pusher structure 50 also includes a first return member 53, which connects the pusher assembly 51 and the fan blade seat 31 to drive the pusher assembly 51 away from the fan blade seat 31.

[0053] In this embodiment, by providing an opening in the positioning groove 20a facing the side wall of the blade seat 31, and using a first return member 53 to connect the push rod assembly 51 and the blade seat 31, the first return member 53 can be a structure with a certain elasticity, such as a spring, compression spring, or rubber block. By moving the push rod assembly 51 along the axial direction of the motor shaft 11, the first return member 53 undergoes elastic deformation under the force of the push rod assembly 51, allowing the positioning rib 5133 to move out of the current positioning groove 20a through the opening, and then rotating the positioning rib 5133 to the next positioning groove 20a. At this point, the force applied to the push rod assembly 51 can be released. The elastic force of the first return member 53 restores the elastic deformation and drives the push rod assembly 51 away from the fan blade seat 31 to move and reset. This allows the positioning rib 5133 to simultaneously pass through the opening of the next positioning groove 20a and be inserted into the positioning groove 20a. This achieves the movement limit of the push structure 50 on the motor shaft 11, enabling the push structure 50 to stably drive the blade 33 to rotate to the required angle. This ensures the adjustment of the air outlet angle and air outlet range of the blower 100, further improving the structural stability and reliability of the blower 100.

[0054] Under the action of the first response component 53, the position of the pusher structure 50 at the upper limit of the motor shaft 11 can be adjusted by pressing the pusher assembly 51 along the axial direction of the motor shaft 11, so that the pusher structure 50 can stably drive the blade 33 to rotate and adjust the airfoil angle of the blade 33, thereby improving the ease of operation of the blowing device 100.

[0055] See Figure 2 and Figure 6 In one embodiment of this application, the push rod assembly 51 includes a push rod body 511, a gear shift collar 513, and a connector 515 arranged sequentially along the axial direction of the motor shaft 11. The connector 515 is connected to at least one blade 33, and the first return member 53 connects the fan blade seat 31 and the connector 515. At least two locking teeth 5111 are provided around one end of the push rod body 511, and one locking tooth 5111 is engaged with a positioning groove 20a. The inner wall of the gear shift collar 513 is provided with a positioning rib 5133. One end of the gear shift collar 513 abuts against the connector 515, and the other end of the gear shift collar 513 is provided with a pushing protrusion 5131, which abuts against any locking tooth 5111.

[0056] In this embodiment, the push rod body 511 and the connecting member 515 are movably arranged along the axial direction of the motor shaft 11. The connecting member 515 abuts against one end of the gear shift collar 513, and multiple retaining teeth 5111 at one end of the push rod body 511 abut against the pushing protrusion 5131 of the gear shift collar 513. When the push rod body 511 moves axially along the motor shaft 11, the pushing protrusion 5131 can slide sequentially between the retaining teeth 5111 along the sidewall of the retaining teeth 5111, thus realizing the gear shift collar... The rotation of 513 on the motor shaft 11 allows the gear shift collar 513 to drive the positioning ribs 5133 to sequentially engage with multiple arranged positioning grooves 20a. When the gear shift collar 513 rotates, it can drive the connecting piece 515 to move axially along the motor shaft 11, synchronously driving the blades 33 to rotate. At the same time, based on the engagement of the positioning ribs 5133 with the corresponding positioning grooves 20a, the airfoil angle of the blades 33 is stably maintained, realizing the stable adjustment of the air outlet angle and air outlet range of the blower 100.

[0057] The locking tooth 5111 can be arranged in an inverted triangle. When the push rod body 511 moves along the axial direction of the motor shaft 11 toward the fan blade seat 31, the pushing protrusion 5131 can abut against one side wall of the locking tooth 5111 and slide along one side wall of the locking tooth 5111 to the top of the locking tooth 5111 facing the fan blade seat 31. At this time, under the action of inertia, the pushing protrusion 5131 can slide to the other side wall of the locking tooth 5111 and slide along the side wall of the locking tooth 5111 to the root of the locking tooth 5111. Thus, the pushing protrusion 5131 can drive the gear collar 513 to rotate as it moves along the locking tooth 5111, so that the positioning rib 5133 can rotate the gear collar 513 to the next positioning groove 20a, thereby realizing the adjustment of the moving position of the pushing structure 50 on the motor shaft 11.

[0058] Thus, as Figures 8 to 10 As shown, by matching multiple locking teeth 5111 at one end of the push rod body 511 with multiple positioning grooves 20a, the pushing protrusion 5131 can slide along the locking teeth 5111 to the top of the locking teeth 5111, allowing the positioning rib 5133 to pass through the opening of the positioning groove 20a. Then, as the pushing protrusion 5131 slides to the other side wall of the locking teeth 5111, the positioning rib 5133 can rotate and move into another adjacent positioning groove 20a. Under the elastic force of the first return member 53, the positioning rib 5133 can stably engage with the positioning groove 20a, ensuring stable movement and limiting of the push rod structure, realizing stable adjustment of the airfoil angle of the blade 33, and further improving the structural stability and reliability of the blowing device 100.

[0059] Multiple locking teeth 5111 correspond to the positioning grooves 20a. By engaging the locking teeth 5111 with the push protrusion 5131, the push rod body 511 can stably drive the gear collar 513 to rotate when it moves axially along the motor shaft 11. This allows the positioning rib 5133 to be engaged sequentially into at least two positioning grooves 20a, achieving stable movement and limiting of the push structure 50 on the motor shaft 11. This facilitates the stepped adjustment of the airfoil angle of the blower 100. At the same time, the stepped adjustment operation method using the locking teeth 5111 and the push protrusion 5131 allows for more stable adjustment of the airfoil angle of the blower 33 by pressing the push rod body 511 during operation of the blower 100. This effectively reduces the frictional force between the push structure 50 and the motor shaft 11, further improving the ease of operation and practicality of the blower 100.

[0060] See Figure 5 In one embodiment of this application, one end of the push protrusion 5131 is provided with a first inclined surface 5132, and the first inclined surface 5132 abuts against the side wall of the locking tooth 5111.

[0061] In this embodiment, a first inclined surface 5132 can be provided at the end of the push protrusion 5131 facing away from the fan blade seat 31. The first inclined surface 5132 can be used to engage with the inclined side of the retaining tooth 5111, so that the push protrusion 5131 can slide more smoothly along the side wall of the retaining tooth 5111, increasing the contact area between the push protrusion 5131 and the retaining tooth 5111. At the same time, the first inclined surface 5132 can be used to make the push protrusion 5131 slide more smoothly from the top of the retaining tooth 5111 to the other side wall of the retaining tooth 5111, so that when the push rod body 511 moves along the axial direction of the motor shaft 11, it can stably drive the stop sleeve to rotate around the motor shaft 11, realize the stable adjustment of the airfoil angle of the blade 33, and further improve the structural stability and reliability of the blowing device 100.

[0062] See Figures 7 to 9 In one embodiment of this application, the inner sidewall of the positioning groove 20a is provided with a second inclined surface 201, and the sidewall of the positioning rib 5133 is provided with a third inclined surface 5134. The second inclined surface 201 and the third inclined surface 5134 are configured to cooperate with each other. The inclination directions of the first inclined surface 5132, the second inclined surface 201 and the third inclined surface 5134 are consistent.

[0063] In this embodiment, by providing a second inclined surface 201 on the inner wall of the positioning groove 20a and a third inclined surface 5134 on the side wall of the positioning rib 5133, the second inclined surface 201 and the third inclined surface 5134 can be engaged and abutted together. Furthermore, by utilizing the fact that the first inclined surface 5132, the second inclined surface 201, and the third inclined surface 5134 are inclined in the same direction, during the process of the pushing protrusion 5131 sliding from one side of the retaining tooth 5111 to the top of the retaining tooth 5111, and then sliding from the top of the retaining tooth 5111 to the other side of the retaining tooth 5111, The positioning rib 5133 can be withdrawn from one positioning groove 20a and turned to enter another adjacent positioning groove 20a. When the positioning rib 5133 enters the positioning groove 20a, the third inclined surface 5134 can cooperate with the second inclined surface 201 to abut, so that the positioning rib 5133 can slide into the positioning groove 20a more smoothly, reducing the resistance of the positioning rib 5133 and the positioning groove 20a, realizing the stable movement limit of the pushing structure 50, and further improving the operation convenience and reliability of the blowing device 100.

[0064] See Figure 5 and Figure 7 In one embodiment of this application, at least two positioning grooves 20a include a first positioning groove 20b, a second positioning groove 20c, and a third positioning groove 20d arranged sequentially around the motor shaft 11. The groove depth of the first positioning groove 20b along the axial direction is greater than the groove depth of the second positioning groove 20c along the axial direction, and the groove depth of the second positioning groove 20c along the axial direction is greater than the groove depth of the third positioning groove 20d along the axial direction.

[0065] In this embodiment, by making the positioning groove 20a include a first positioning groove 20b, a second positioning groove 20c, and a third positioning groove 20d arranged sequentially around the motor shaft 11, and by gradually increasing the groove depth of the first positioning groove 20b, the second positioning groove 20c, and the third positioning groove 20d, the positioning rib 5133 can be successively engaged in the first positioning groove 20b, the second positioning groove 20c, and the third positioning groove 20d each time the push rod body 511 is pressed, thereby realizing the stepped adjustment of the airfoil angle of the blade 33 and further improving the structural stability and reliability of the blowing device 100.

[0066] When the positioning rib 5133 is sequentially engaged with the first positioning groove 20b, the second positioning groove 20c and the third positioning groove 20d, the corresponding distance between the stop collar and the fan blade seat 31 gradually decreases, so that the corresponding airfoil angle of the blade 33 can be adjusted accordingly, and the air outlet range and air outlet angle of the blowing device 100 can be adjusted and controlled in three levels. Specifically, when the positioning rib 5133 is engaged in the first positioning groove 20b, the push rod body 511 moves along the axial direction of the motor shaft 11 toward the fan blade seat 31. At this time, the positioning rib 5133 can disengage from the first positioning groove 20b and slide along the side wall of the tooth 5111 as the push protrusion 5131 pushes against it, allowing the positioning rib 5133 to rotate to the opening of the second positioning groove 20c. When the pressing force applied to the push rod body 511 disappears, the first return member 53 drives the connecting member 515 and the stop collar to reset, so that the positioning rib 5133 passes through the opening of the second positioning groove 20c and engages in the second positioning groove 20c. Since the groove depths of the first positioning groove 20b and the second positioning groove 20c are inconsistent, the engagement position of the stop collar on the motor shaft 11 can be changed during this process, thereby limiting the movement of the push structure 50 on the motor shaft 11 and ensuring the stable adjustment of the airfoil angle of the blade 33. Correspondingly, when the positioning rib 5133 is engaged in the second positioning groove 20c, pressing the push rod body 511 again can transfer the positioning rib 5133 to the third positioning groove 20d in a similar manner as described above, thereby enabling the blower 100 to stably press the push rod body 511 to adjust the airfoil angle of the blade 33, further improving the ease of operation and reliability of the blower 100.

[0067] Furthermore, the first positioning groove 20b, the second positioning groove 20c, and the third groove arranged sequentially on the motor shaft 11 can form a groove group. At least two such groove groups can be arranged around the motor shaft 11, so that when the stop sleeve rotates around the motor shaft 11, the positioning rib 5133 can be transferred from the third positioning groove 20d to the first positioning groove 20b of another groove group, thereby achieving stable and stepped adjustment of the airfoil angle of the blade 33 and better improving the operational convenience and structural reliability of the blowing device 100.

[0068] See Figure 3 and Figure 10 In one embodiment of this application, the connector 515 includes a main body 5151 and a plurality of connecting rods 5153 connected to the main body 5151. The main body 5151 is axially movably sleeved on the motor shaft 11. The gear collar 513 abuts against the main body 5151. The first return member 53 connects the main body 5151 and the fan blade seat 31. One connecting rod 5153 is connected to one blade 33.

[0069] In this embodiment, the main body 5151 can be a connecting plate with a through hole in the middle, allowing the motor shaft 11 to pass through the main body 5151. By fixing one end of the connecting rod 5153 to the periphery of the main body 5151, the other end of the connecting rod 5153 is connected to the blade 33. The connecting rod 5153 can extend along the axial direction of the motor shaft 11, allowing the push rod body 511 to push the stop collar to rotate. By using the positioning rib 5133 to engage with different positioning grooves 20a, the main body 5151 is driven to move along the axial direction of the motor shaft 11, thereby enabling the main body 5151 to drive the connecting rod 5153 to pull the blade 33 to rotate, realizing the adjustment of the airfoil angle of the blade 33, and further improving the structural stability and reliability of the blowing device 100.

[0070] By using the connecting rod 5153 to drive the blades 33 to rotate, a certain distance can be maintained between the main body 5151 and the blade holder 31. This allows the pushing structure 50 to drive the blades 33 to rotate at a larger angle on the blade holder 31, thus achieving better adjustment of the air outlet angle and air outlet range of the blowing device 100. Furthermore, by matching and connecting multiple connecting rods 5153 with multiple blades 33, the main body 5151 can synchronously drive multiple blades 33 to rotate together when moving along the axial direction of the motor shaft 11, achieving overall adjustment of the blade pitch of multiple blades 33 and further improving the structural stability and reliability of the blowing device 100.

[0071] See Figure 3 , Figure 4 and Figure 10 In one embodiment of this application, the side wall of the connecting rod 5153 is provided with a drive rack 5155, the drive rack 5155 extends axially along the motor shaft 11, and a plurality of driven teeth 331 are arranged around the periphery of the blade 33, the plurality of driven teeth 331 meshing with the drive rack 5155.

[0072] In this embodiment, by providing a drive rack 5155 on one side of the connecting rod 5153 and providing multiple driven teeth 331 arranged around the end of the blade 33, the drive rack 5155 can mesh with the driven teeth 331, so that the axial movement of the connecting rod 5153 along the motor shaft 11 can stably link the rotation of the blade 33, thereby achieving stable adjustment of the airfoil angle of attack of the blade 33. Using the meshing of the drive rack 5155 and the driven teeth 331 to connect the connecting rod 5153 and the blade 33 allows for a simpler structural design of the blowing device 100, reduces the assembly difficulty of the blowing device 100, and further improves the practicality and structural reliability of the blowing device 100.

[0073] See Figure 6 and Figure 7In one embodiment of this application, the fan blade seat 31 is provided with a sleeve 311 sleeved on the motor shaft 11, the connecting sleeve 20 is connected to the sleeve 311, and the connecting member 515 is sleeved on the sleeve 311; the outer diameter of the sleeve 311 is smaller than the outer diameter of the connecting sleeve 20, the circumference of the connecting sleeve 20 is provided with a positioning groove 20a, and the end of the connecting sleeve 20 facing the sleeve 311 is provided with an opening.

[0074] In this embodiment, by connecting the fan blade seat sleeve 311 to the connecting sleeve 20, and making the outer diameter of the sleeve 311 smaller than the outer diameter of the connecting sleeve 20, the connecting sleeve 20 can be provided with an opening for the connecting positioning groove 20a at the part of the structure that extends beyond the sleeve 311. This ensures that the positioning rib 5133 can stably pass through the opening and enter and exit each positioning groove 20a, thereby achieving stable movement and limiting of the pushing structure 50, ensuring stable adjustment of the airfoil angle of the blade 33, and further improving the structural stability and reliability of the blowing device 100.

[0075] At this time, the connector 515 can be provided with a through hole corresponding to the outer diameter of the sleeve 311, so that the connector 515 can be stably fitted onto the sleeve 311 and can be moved axially along the sleeve 311; at the same time, the push rod body 511 can be provided with a through hole corresponding to the outer diameter of the connecting sleeve 20, so that the push rod body 511 can be stably fitted onto the connecting sleeve 20 and can be moved axially along the connecting sleeve 20. The stop collar can be movably disposed between the sleeve 311 and the connecting sleeve 20. By pressing the push rod body 511, the positioning rib 5133 of the stop collar is driven to reciprocate between the sleeve 311 and the connecting sleeve 20, so that the positioning rib 5133 can be engaged in the corresponding positioning groove 20a to realize the movement limit of the push structure 50 and realize the stable adjustment of the airfoil angle of the blade 33.

[0076] Among them, the sleeve 311 and the connecting sleeve 20 can adopt a detachable segmented structure design. The sleeve 311 and the connecting sleeve 20 can be easily disassembled and assembled through the threaded structure, which makes it easier to mount the push structure 50 on the motor shaft 11 and further improves the assembly convenience of the blower 100.

[0077] See Figures 7 to 10In one embodiment of this application, the sleeve 311 is provided with one of a first limiting groove 3111 or a first limiting rib 5157 on its periphery, and the connector 515 is provided with the other of a first limiting groove 3111 or a first limiting rib 5157 on its inner wall. The first limiting groove 3111 and the first limiting rib 5157 extend along the axial direction of the motor shaft 11, and the first limiting rib 5157 is inserted into the first limiting groove 3111; and / or, the connecting sleeve 20 is provided with one of a second limiting groove 203 or a second limiting rib 5113 on its periphery, and the push rod body 511 is provided with the other of a second limiting groove 203 or a second limiting rib 5113 on its inner wall. The second limiting groove 203 and the second limiting rib 5113 extend along the axial direction of the motor shaft 11, and the second limiting rib 5113 is inserted into the second limiting groove 203.

[0078] In this embodiment, by providing a first limiting groove 3111 on the sleeve 311 and a first limiting rib 5157 on the inner wall of the through hole of the connector 515; or by providing a first limiting rib 5157 on the sleeve 311 and a first limiting groove 3111 on the inner wall of the through hole of the connector 515, the sliding of the first limiting rib 5157 within the first limiting groove 3111 can be used to limit the axial movement of the connector 515 on the sleeve 311, effectively preventing the connector 515 from rotating or shifting on the sleeve 311, so that the connector 515 can stably drive the blade 33 to rotate, further improving the structural stability and reliability of the blowing device 100.

[0079] Similarly, in some embodiments, by providing a second limiting groove 203 on the connecting sleeve 20 and a second limiting rib 5113 on the inner wall of the through hole of the push rod body 511; or by providing a second limiting rib 5113 on the connecting sleeve 20 and a second limiting groove 203 on the inner wall of the through hole of the push rod body 511, the sliding of the second limiting rib 5113 within the second limiting groove 203 can be used to limit the axial movement of the push rod body 511 on the connecting sleeve 20, effectively preventing the push rod body 511 from rotating or shifting on the connecting sleeve 20, so that the push rod body 511 can stably move axially to drive the stop collar to adjust the snapping position on the output disc, thereby achieving stable adjustment of the airfoil angle of the blade 33 and further improving the structural stability and reliability of the blowing device 100.

[0080] See Figure 1 and Figure 2In one embodiment of this application, the blower device 100 further includes a mesh cover 70, a fan blade assembly 30 and a pusher structure 50 disposed inside the mesh cover 70. The mesh cover 70 is provided with a through hole 71 coaxially disposed with the motor shaft 11, and a receiving platform 711 protrudes from the inner wall of the through hole 71. An operation button 73 is provided on the mesh cover 70. The operation button 73 passes through the through hole 71 and is sleeved on one end of the push rod body 511. A bearing 731 is installed inside the operation button 73, and one end of the push rod body 511 is inserted into the inner ring of the bearing 731.

[0081] By using the operation button 73 on the mesh cover 70, it is more convenient to press the operation button 73 on the mesh cover 70 to drive the push rod body 511 to move along the axial direction of the motor shaft 11, so that the push structure 50 can stably drive the blade 33 to rotate. This allows the user to operate the blower 100 more intuitively, further improving the structural stability and reliability of the blower 100.

[0082] Furthermore, the mesh cover 70 is also provided with a second response component 75, which is connected to the operation button 73 and the receiving platform 711.

[0083] In this embodiment, the mesh cover 70 can surround the fan blade assembly 30 and the push structure 50 so that the fan blade assembly 30 can be better prevented from being accidentally touched under the action of the mesh cover 70, thus ensuring the stable operation of the blower 100.

[0084] At this time, by setting an operation button 73 and a second return piece 75 on the mesh cover 70, the second return piece 75 connects the receiving platform 711 on the inner wall of the through hole 71 of the mesh cover 70 and the operation button 73, and the inner cavity of the operation button 73 is fixedly connected to the outer ring of the bearing 731, the push rod body 511 of the push structure 50 can be inserted into the inner ring of the bearing 731, so that when the motor 10 drives the fan blade assembly 30 to rotate, the push structure 50 can rotate relative to the operation button 73.

[0085] This design allows the operation button 73 to be pressed on the mesh cover 70, which in turn drives the push rod body 511 to push the stop sleeve. The engagement of the locking teeth 5111 and the push protrusion 5131 causes the stop sleeve to rotate around the motor shaft 11. Simultaneously, the positioning rib 5133 can be moved from one positioning groove 20a to another. Since the depths of adjacent positioning grooves 20a are inconsistent, the position of the connector 515 on the motor shaft 11 can be changed by the locking of the positioning rib 5133 within different positioning grooves 20a. This allows the blade 33 to rotate at a certain angle on the blade seat 31, achieving stable adjustment of the airfoil angle of the blade 33, changing the air outlet angle and range of the blowing device 100, and further improving the structural stability and reliability of the blowing device 100. In this process, when the operation button 73 is pressed, the second return member 75 can undergo elastic deformation due to the force of the operation button 73. Then, when the force on the operation button 73 disappears, the second return member 75 can restore the elastic deformation force to move the operation button 73 away from the receiving platform 711, thereby resetting the operation button 73 and improving the operation convenience and structural reliability of the blower device 100.

[0086] This application also proposes a method for adjusting the blades of a blower. The specific structure of the blower 100 is as described in the above embodiments. Since the method for adjusting the blades of this blower 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.

[0087] In one embodiment, the fan blade adjustment method of the blower device of this application includes: Step S10: Control the jacking structure 50 to move closer to the fan blade seat 31 along the axial direction of the motor shaft 11; In step S20, the push structure 50 is driven to move a first stroke along the axial direction of the motor shaft 11, so that the push structure 50 drives the blade 31 to rotate relative to the fan blade seat 33 to a first angle.

[0088] In this embodiment, the blower 100 can apply force to the pushing structure 50 via a motor, pump, or other equipment, causing the pushing structure 50 to move axially along the motor shaft 11. Alternatively, force can be applied to the pushing structure 50 by pressing or other means, allowing it to move stably along the output shaft 11. By moving the pushing structure 50 along the axial direction of the motor shaft 11 for a first stroke—which can be the distance the pushing structure 50 moves according to the required rotation angle of the blade 31—the pushing structure 50 can stably drive the blade 31 to rotate relative to the fan blade seat 33 to the desired first angle after moving the first stroke. This allows the blower 100 to stably achieve the required air outlet angle and air outlet range. Furthermore, the first stroke and first angle can be specifically set, enabling the blower 100 to better meet the user's needs for the blower's performance and achieve stable and reliable adjustment of the fan blades.

[0089] In one embodiment of this application, after the step of moving the jacking structure 50 to the first stroke so that the jacking structure 50 drives the blade 31 to rotate relative to the blade seat 33 to the first angle, the method further includes: In step S30, the pusher structure 50 is driven to move back a second stroke in a direction away from the blade seat 33 to limit the angle of the blade 31 after rotation.

[0090] The push-up structure 50 can be connected to a spring or other elastic reset mechanism, or it can be equipped with a motor, pump or other equipment to reverse the second stroke setting after the push-up structure 50 drives the blade 31 to rotate. This means that the push-up structure 50 can be reset to a certain distance from the blade seat 33, so that the blade 31 can maintain the angle limit after rotation. At the same time, the reset push-up structure 50 can be more convenient to perform the next operation, making the operation of the blowing device 100 more convenient and reliable. This allows the blowing device 100 to adjust the blades more stably and reliably, and achieve better adjustment of the air outlet angle and air outlet range.

[0091] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A blower device, characterized in that, include: The motor is equipped with a motor shaft; A fan blade assembly, comprising a fan blade seat and multiple blades, wherein the fan blade seat is sleeved on the motor shaft and the multiple blades are rotatably connected to the outer periphery of the fan blade seat; as well as A pushing structure is connected to at least one of the blades and is movably sleeved on the motor shaft. The pushing structure can move along the motor shaft and drive the blades to rotate relative to the fan blade seat.

2. The blower device as described in claim 1, characterized in that, A connecting sleeve is fitted onto the connecting shaft. At least two positioning grooves are arranged around the periphery of the connecting sleeve. The at least two positioning grooves are arranged side by side in sequence, and the groove depth of any two adjacent positioning grooves is inconsistent along the axial direction. The jacking structure is provided with positioning ribs, which can be snapped into any of the positioning grooves.

3. The blower device as described in claim 2, characterized in that, The positioning groove has an opening facing the side wall of the blade seat. The pushing structure includes a push rod assembly, which is sleeved on the connecting sleeve and connected to at least one blade. The push rod assembly is movably arranged along the axial direction of the motor shaft, and at least one positioning rib is located on the inner circumferential surface of the push rod assembly.

4. The blower device as described in claim 3, characterized in that, The pushing structure also includes a first return member, which connects the push rod assembly and the fan blade seat to drive the push rod assembly away from the fan blade seat.

5. The blower device as described in claim 4, characterized in that, The push rod assembly includes a push rod body, a stop collar, and a connector arranged sequentially along the axial direction of the motor shaft. The connector is connected to at least one of the blades, and the first return member connects the fan blade seat and the connector. At least two locking teeth are provided around one end of the push rod body, the positioning rib is provided on the inner wall of the gear shift collar, one end of the gear shift collar abuts against the connecting member, and the other end of the gear shift collar is provided with a pushing protrusion, which abuts against any of the locking teeth.

6. The blower device as described in claim 5, characterized in that, One end of the push-up protrusion is provided with a first inclined surface, which abuts against the side wall of the locking tooth.

7. The blower device as described in claim 6, characterized in that, The inner wall of the positioning groove is provided with a second inclined surface, and the side wall of the positioning rib is provided with a third inclined surface. The second inclined surface and the third inclined surface are configured to cooperate with each other. The first inclined plane, the second inclined plane, and the third inclined plane have the same direction of inclination.

8. The blower device as described in claim 5, characterized in that, The positioning groove includes a first positioning groove, a second positioning groove, and a third positioning groove arranged sequentially around the motor shaft. The axial depth of the first positioning groove is greater than the axial depth of the second positioning groove, and the axial depth of the second positioning groove is greater than the axial depth of the third positioning groove.

9. The blower device as described in claim 5, characterized in that, The connector includes a main body and a plurality of connecting rods connected to the main body. The main body is axially movably sleeved on the motor shaft. The gear shift collar abuts against the main body. The first return member connects the main body and the fan blade seat. One of the connecting rods is connected to one of the blades.

10. The blower device as claimed in claim 9, characterized in that, The connecting rod has a drive rack on its side wall, which extends axially along the motor shaft. The blade has a plurality of driven teeth surrounding it, which mesh with the drive rack.

11. The blower device as claimed in claim 5, characterized in that, The fan blade seat is provided with a sleeve fitted onto the motor shaft, the connecting sleeve is connected to the sleeve, and the connecting member is fitted onto the sleeve; The outer diameter of the sleeve is smaller than the outer diameter of the connecting sleeve, the circumference of the connecting sleeve is provided with the positioning groove, and the end of the connecting sleeve facing the sleeve is provided with the opening.

12. The blower device as claimed in claim 11, characterized in that, The sleeve is provided with one of a first limiting groove or a first limiting rib on its periphery, and the connector is provided with the other of a first limiting groove or a first limiting rib on its inner wall. The first limiting groove and the first limiting rib extend along the axial direction of the motor shaft, and the first limiting rib is inserted into the first limiting groove. And / or, the peripheral side of the connecting sleeve is provided with one of a second limiting groove or a second limiting rib, and the inner wall of the push rod body is provided with the other of a second limiting groove or a second limiting rib. The second limiting groove and the second limiting rib extend along the axial direction of the motor shaft, and the second limiting rib is inserted into the second limiting groove.

13. The blower device as claimed in claim 5, characterized in that, The blowing device also includes a mesh cover, the fan blade assembly and the push structure are disposed inside the mesh cover, the mesh cover has a through hole coaxially arranged with the motor shaft, and a receiving platform protrudes from the inner wall of the through hole; the mesh cover is provided with an operation button, the operation button passes through the through hole and is sleeved on one end of the push rod body, a bearing is installed inside the operation button, and one end of the push rod body is inserted into the inner ring of the bearing.

14. The blower device as claimed in claim 13, characterized in that, The mesh cover is also provided with a second response component, which is connected to the operation button and the receiving platform.

15. A method for adjusting the blades of a blower, applied to the blower as described in any one of claims 1 to 14, characterized in that, The method for adjusting the fan blades of the blower includes: The control pusher structure moves closer to the fan blade seat along the axial direction of the motor shaft; The push mechanism moves a first stroke along the axial direction of the motor shaft, so that the push mechanism drives the blades to rotate relative to the fan blade seat to a first angle.

16. The method for adjusting the fan blades of the blower as described in claim 15, characterized in that, After the step of moving the jacking structure to the first stroke, so that the jacking structure drives the blade to rotate relative to the blade seat to the first angle, the method further includes: The drive mechanism moves back a second stroke in a direction away from the blade seat to limit the angle of the blade after rotation.

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