Air guide plate transmission assembly and air conditioner

Abstract

The present invention provides an air deflector transmission assembly and an air conditioner, relating to the technical field of air conditioning. The air deflector transmission assembly includes a support and a transmission shaft. The support is used to be installed on the main body of the air conditioner. The support is respectively provided with a first end and a second end. A toggle member is protruding from the side wall of the transmission shaft. The transmission shaft passes through the support from the first end to the second end and rotates with the support. The toggle member corresponds to the end wall of the first end. The first end is provided with a recessed position for facilitating the toggle member. The toggle member is used to drive the transmission shaft to move axially relative to the support, so that the two ends of the transmission shaft are respectively connected to the air sweeping drive member and the air deflector of the air conditioner. The air deflector transmission assembly provided by the present invention can more conveniently adjust the position of the transmission shaft, greatly reducing the difficulty of installing the air deflector.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air guide plate transmission assembly and an air conditioner. Background Art

[0002] The installation of the air guide plate on the middle frame of the air conditioner requires a transmission connection to be established with the wind sweeping drive through the transmission assembly. After the transmission assembly is installed and connected with the wind sweeping drive, the transmission shaft of the transmission assembly will usually interfere with the installation position of the air guide plate. In this case, the position of the transmission shaft needs to be adjusted to make way for the installation of the air guide plate.

[0003] However, in actual applications, due to the limited installation space, there is often insufficient operating space to adjust the position of the drive shaft, which makes it difficult to install the air guide plate. Summary of the Invention

[0004] The problem solved by the present invention is that insufficient operating space results in difficulty in adjusting the position of the transmission shaft, which in turn results in difficulty in installing the air guide plate.

[0005] In order to solve the above problems, the present invention provides an air deflector transmission assembly, which can more conveniently adjust the position of the transmission shaft and greatly reduce the difficulty of installing the air deflector.

[0006] An embodiment of the present invention provides an air guide plate transmission assembly, which is applied to an air conditioner and includes a support and a transmission shaft. The support is used to be installed on the main body of the air conditioner, and the support is respectively provided with a first end and a second end. A toggle member is protruding from the side wall of the transmission shaft. The transmission shaft passes through the support from the first end to the second end and rotates with the support. The toggle member corresponds to the end wall of the first end, and the first end is provided with a yield recess for facilitating the toggle member to be moved. The toggle member is used to drive the transmission shaft to move axially relative to the support, so that the two ends of the transmission shaft are respectively plugged into the wind sweeping drive member and the air guide plate of the air conditioner.

[0007] The air deflector transmission assembly provided by an embodiment of the present invention has a recessed opening at the first end of the support. In actual use, after the end of the toggle member is connected to the wind sweeping drive member, a finger is inserted into the recessed opening and the toggle member is toggled toward the wind sweeping drive member, thereby driving the transmission shaft to move in the direction of insertion into the wind sweeping drive member. The other end of the transmission shaft then exits the installation position of the air deflector, thereby making way for the air deflector to be installed smoothly. Therefore, the air deflector transmission assembly provided by this embodiment provides operating space for adjusting the position of the transmission shaft, making it more convenient to adjust the position of the transmission shaft and significantly reducing the difficulty of installing the air deflector.

[0008] In an optional embodiment, the clearance recess is recessed on the outer side wall of the support, and the clearance recess is connected to the end wall of the first end.

[0009] The clearance recess is recessed inward from the outer wall of the support and connected to the end wall of the first end. The user's finger can reach the toggle member without obstruction by inserting it into the clearance recess and moving toward the toggle member, thereby smoothly pushing the toggle member to move away from the support.

[0010] In an optional embodiment, the clearance recess extends from the outer side wall of the support to the channel of the support for the transmission shaft to pass through.

[0011] The recessed portion extends from the outer side wall of the support to the channel for the transmission shaft to pass through, which is equivalent to partially passing through the support, thereby greatly increasing the operating space.

[0012] In an optional embodiment, the outer side wall of the support and the bottom wall of the clearance recess form a step structure.

[0013] In an optional embodiment, in the radial direction of the transmission shaft, the distance from the end of the toggle member away from the transmission shaft to the axis of the transmission shaft is greater than the distance from the bottom wall of the clearance recess to the axis of the transmission shaft.

[0014] The distance from the end of the toggle member away from the transmission shaft to the transmission shaft is greater than the distance from the bottom wall of the clearance recess to the transmission shaft, that is, in the direction parallel to the transmission shaft, the toggle member is at least partially opposite to the clearance recess, ensuring that the user can smoothly push the toggle member through the clearance recess.

[0015] In an optional embodiment, the toggle member is circumferentially protruded on the side wall of the transmission shaft.

[0016] In an optional embodiment, the toggle member is annular, and the center of the toggle member is on the axis of the transmission shaft.

[0017] The toggle member is annularly arranged on the side wall of the toggle member, which can ensure that the toggle member at least partially corresponds to the clearance recess, avoiding the need to adjust the position of the toggle member during installation so that the toggle member is opposite to the clearance recess, thereby simplifying the operation.

[0018] In an optional embodiment, the air deflector transmission assembly also includes a shaft sleeve, and the transmission shaft is rotatably engaged with the support through the shaft sleeve, and an installation channel is provided on the support from the first end to the second end, and the shaft sleeve is embedded in the installation channel and sleeved on the side wall of the transmission shaft, and a spacer ring wall is protruded from the side wall of the shaft sleeve near one end of the toggle member, and the spacer ring wall is used to isolate the toggle member from the end wall of the first end.

[0019] The spacer ring wall serves to space the toggle member from the first end, thereby preventing the toggle member from contacting the support, reducing the friction force experienced by the toggle member during rotation, and ensuring smooth rotation of the transmission shaft.

[0020] In an optional embodiment, the spacer ring wall has a clearance gap at a position corresponding to the clearance recess, and in the radial direction of the transmission shaft, the distance from the bottom wall of the clearance gap to the axis of the transmission shaft is smaller than the distance from the bottom wall of the clearance recess to the axis of the transmission shaft.

[0021] In order to prevent the spacing ring wall from blocking the give way recess, a give way gap is opened at the position of the spacing ring wall corresponding to the give way recess, and the bottom wall of the give way gap is ensured to be lower than the bottom wall of the give way recess to avoid interference with the path of pushing the toggle member.

[0022] The cam is connected to the air filter housing, and the cam is connected to the air filter housing, wherein the cam is connected to the air filter housing, and the cam is connected to the air filter housing, wherein the cam is connected to the air filter housing, and the cam is connected to the air filter housing, wherein the cam is connected to the air filter housing, and the cam is connected to the air filter housing, wherein the cam is connected to the air filter housing, and the cam is connected to the air filter housing, wherein the cam is connected to the air filter housing, and the cam is connected to the air filter housing, wherein the cam is connected to the air filter housing,

[0023] In an optional embodiment, a mounting groove is recessed on the outer surface of the main body, and the wind sweeping drive member extends into the mounting groove from the inside of the main body. A rotating shaft is provided on the air guide plate, and the rotating shaft can be rotatably embedded in the mounting groove. The support is connected to the groove wall of the mounting groove and is located between the wind sweeping drive member and the rotating shaft, and the two ends of the transmission shaft are respectively plugged into the wind sweeping drive member and the rotating shaft.

[0024] In an optional embodiment, the wind sweeping drive member is provided with a plugging hole for plugging into the transmission shaft, and there is a gap between the bottom wall of the plugging hole and the transmission shaft.

[0025] There is a gap between the bottom wall of the plug-in hole set on the wind sweeping drive component and the drive shaft. During the actual installation process, when the user pushes the drive shaft toward the wind sweeping drive component through the recess, the gap between the bottom wall of the plug-in hole and the drive shaft can ensure that the drive shaft can move axially smoothly, so as to ensure that the other end of the drive shaft can completely withdraw from the installation position of the air guide plate, thereby making way for the installation of the air guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic structural diagram of an air deflector transmission assembly provided in an embodiment of the present invention;

[0027] Figure 2 A cross-sectional view of an air deflector transmission assembly provided in an embodiment of the present invention;

[0028] Figure 3 for Figure 1 Schematic diagram of the matching structure between the middle support and the shaft sleeve;

[0029] Figure 4 A schematic structural diagram of an air conditioner provided in an embodiment of the present invention;

[0030] Figure 5 for Figure 4 A magnified schematic diagram of area A in the middle.

[0031] Description of reference numerals:

[0032] 100-air deflector transmission assembly; 110-support; 111-first end; 112-mounting channel; 113-second end; 120-clearance recess; 130-sleeve; 131-spacer ring wall; 133-clearance gap; 150-drive shaft; 151-first plug-in end; 153-second plug-in end; 160-toggle member; 170-reset spring; 200-air conditioner; 210-main body; 220-air sweeping drive member; 230-air deflector; 231-rotating shaft. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0034] See also Figure 1 , Figure 1 Shown is a schematic structural diagram of the air deflector transmission assembly 100 provided in this embodiment.

[0035] The air guide plate transmission assembly 100 provided in this embodiment is applied to an air conditioner and is used to transmit the torque output by the wind sweeping drive member provided on the air conditioner to the air guide plate of the air conditioner, thereby driving the air guide plate to rotate and realize air guidance at different angles.

[0036] The air deflector transmission assembly 100 includes a support 110, a sleeve 130, a transmission shaft 150 and a return spring 170. The support 110 is used to be installed on the main body of the air conditioner, and is usually installed on the middle frame in actual applications. The support 110 is respectively provided with a first end 111 and a second end 113. A toggle member 160 is protruded from the side wall of the transmission shaft 150. The transmission shaft 150 passes through the support 110 from the first end 111 to the second end 113, and is rotatably matched with the support 110 through the sleeve 130. The toggle member 160 corresponds to the end wall of the first end 111 of the support 110, which is equivalent to the toggle member 160 playing a limiting role. In this embodiment, the transmission shaft 150 is respectively provided with a first plug end 151 and a second plug end 153, the second plug end 153 passes through the support 110, the toggle member 160 is located between the first plug end 151 and the support 110, and the return spring 170 is sleeved on the first plug end 151.

[0037] In actual use, the support 110 is installed on the air conditioner body between the wind sweep drive and the air deflector. The ends of the drive shaft 150 are respectively connected to the wind sweep drive and the air deflector. During installation, the support 110 is first installed and secured, and then the end of the drive shaft 150, which is farther from the support 110 than the toggle member 160, is inserted into the wind sweep drive. To ensure that the drive shaft 150 is securely connected to both the wind sweep drive and the air deflector when both ends are connected, and to prevent axial movement that could cause one end to fall off, the ends of the return spring 170 are respectively supported against the wind sweep drive and the toggle member 160.

[0038] In this state, the second plug-in end 153 extends into the installation position of the air deflector, interfering with the installation of the air deflector. Therefore, it is necessary to drive the drive shaft 150 to move a certain distance in the direction close to the wind sweeping drive member so that the second plug-in end 153 can withdraw from the installation area of ​​the air deflector and make way for the air deflector. Due to the action of the reset spring 170, the toggle member 160 always maintains a tight fit with the end wall of the first end 111 of the support 110 or there is only a very small gap, making it difficult for the installer to insert his fingers between the toggle member 160 and the end wall of the first end 111. In order to provide sufficient operating space for toggling the toggle member 160, in this embodiment, a clearance recess 120 is provided at the first end 111 of the support 110. The clearance recess 120 is used for the installer to insert his fingers to facilitate toggling the toggle member 160.

[0039] Therefore, in actual application, after completing the connection between the first plug-in end 151 of the transmission shaft 150 and the wind sweeping drive member, and the two ends of the reset spring 170 are respectively against the wind sweeping drive member and the toggle member 160, the installer can insert his finger into the clearance recess 120 and toggle the toggle member 160 toward the direction close to the wind sweeping drive member, thereby driving the transmission shaft 150 to move toward the direction close to the wind sweeping drive member, and the reset spring 170 contracts, accumulating elastic potential energy, so that the second plug-in end 153 of the transmission shaft 150 withdraws from the installation area of ​​the wind guide plate, thereby making way for the wind guide plate and facilitating the rapid installation of the wind guide plate.

[0040] After the air deflector is installed, the force applied to the toggle member 160 is removed, and the return spring 170 releases its elastic potential energy, pushing the toggle member 160 toward the support 110, thereby driving the second plug end 153 of the transmission shaft 150 to plug into the air deflector. Furthermore, to remove the air deflector, simply insert a finger into the clearance recess 120 and toggle the toggle member 160 toward the wind sweep drive element, driving the second plug end 153 of the transmission shaft 150 out of the air deflector, thus achieving convenient and quick removal.

[0041] It can be seen that the air guide plate transmission assembly 100 provided in this embodiment provides sufficient operating space for the toggle member 160 by setting a clearance recess 120 on the support 110, which facilitates the axial movement of the transmission shaft 150 relative to the support 110, thereby achieving clearance for the air guide plate and greatly reducing the difficulty of disassembly and assembly of the air guide plate.

[0042] The clearance recess 120 is recessed in the outer wall of the support 110. It is understood that to ensure that the clearance recess 120 is directly opposite the toggle member 160 and that the finger movement path is unobstructed, the clearance recess 120 is connected to the end wall of the first end 111. Furthermore, in this embodiment, the depth of the inward recess of the clearance recess 120 from the outer wall of the support 110 is limited. The outer wall of the support 110 and the bottom wall of the clearance recess 120 form a stepped structure, with the outer wall of the support 110 and the bottom wall of the clearance recess 120 forming the upper and lower stepped surfaces of the stepped structure. In other embodiments, if more operating space is required, the clearance recess 120 can also extend from the outer wall of the support 110 to the internal passage of the support 110, which is the passage that accommodates the shaft sleeve 130 and the transmission shaft 150. In this case, the clearance recess 120 does not have a bottom wall.

[0043] See also Figure 2 , Figure 2 Shown is a cross-sectional view of the air deflector transmission assembly 100 provided in this embodiment.

[0044] To ensure that the installer's finger can be positioned parallel to the transmission shaft 150 when inserted into the clearance recess 120, the dimensions of the toggle member 160 and the clearance recess 120 are further restricted. In this embodiment, in the radial direction of the transmission shaft 150 (i.e., perpendicular to the axis of the transmission shaft 150), the distance from the end of the toggle member 160 distal to the transmission shaft 150 to the axis of the transmission shaft 150 is greater than the distance from the bottom wall of the clearance recess 120 to the axis of the transmission shaft 150. This means that the toggle member 160 at least partially extends into the clearance recess 120 in a direction parallel to the transmission shaft 150.

[0045] It is understandable that, due to the limited installation space provided by the middle frame, a height of the toggle member 160 that is too high on the transmission shaft 150 may cause it to collide with the middle frame during rotation, thereby affecting the smooth rotation of the transmission shaft 150. Therefore, in this embodiment, the height of the toggle member 160 on the side wall of the transmission shaft 150 is lower than the height of the outer side wall of the support 110. That is, in a direction perpendicular to the transmission shaft 150, the distance from the end of the toggle member 160 away from the transmission shaft 150 to the axis of the transmission shaft 150 is shorter than the distance from the outer side wall of the support 110 to the axis of the transmission shaft 150.

[0046] Furthermore, considering that the transmission shaft 150 may rotate relative to the support 110 during installation, this may cause the toggle member 160 to rotate to a position misaligned with the clearance recess 120, making it impossible for the installer to toggle the toggle member 160 through the clearance recess 120. In this embodiment, the toggle member 160 is annular, that is, the toggle member 160 is circumferentially projecting from the side wall of the transmission shaft 150, with the center of the toggle member 160 being on the axis of the transmission shaft 150. Therefore, in actual use, when the transmission shaft 150 rotates at any angle relative to the support 110, a portion of the toggle member 160 will be aligned with the clearance recess 120 in a direction parallel to the transmission shaft 150.

[0047] Please refer to Figure 1 and Figure 3 , Figure 3 It is a schematic diagram of the matching structure of the support 110 and the shaft sleeve 130.

[0048] An installation channel 112 is provided on the support 110 from the first end 111 to the second end 113, and the sleeve 130 is embedded in the installation channel 112. The second plug-in end 153 of the transmission shaft 150 passes through the sleeve 130 to achieve rotatable cooperation with the support 110, which is equivalent to the sleeve 130 being sleeved on the part of the side wall of the transmission shaft 150 in the installation channel 112.

[0049] Considering that after installation, if the toggle member 160 continues to abut against the end wall of the first end 111 of the support 110 due to the continuous force of the return spring 170, the toggle member 160 will be subjected to excessive friction during rotation, increasing energy consumption and affecting the smooth rotation of the transmission shaft 150. Therefore, in this embodiment, the end of the sleeve 130 closest to the toggle member 160 extends out of the installation channel 112, and a spacer ring wall 131 is protruded from the side wall of this end. The spacer ring wall 131 is used to isolate the toggle member 160 from the end wall of the first end 111.

[0050] In actual use, due to the continuous force of return spring 170, toggle member 160 maintains contact with spacer ring wall 131, thereby creating a certain gap between toggle member 160 and the end wall of first end 111 of support 110. The low height of spacer ring wall 131 results in a smaller contact area with toggle member 160 than with the end wall of first end 111 of support 110, thereby generating less friction, reducing energy consumption while ensuring smooth rotation of transmission shaft 150.

[0051] To prevent the spacer ring wall 131 from blocking the clearance recess 120, in this embodiment, a clearance notch 133 is formed in the spacer ring wall 131 at a position corresponding to the clearance recess 120. In the radial direction of the transmission shaft 150, the distance between the bottom wall of the clearance notch 133 and the transmission shaft 150 is shorter than the distance between the bottom wall of the clearance notch 133 and the transmission shaft 150. After the installer inserts a finger into the clearance recess 120 and moves it in a direction parallel to the transmission shaft 150, the finger can pass through the clearance notch 133 and contact the toggle member 160, thereby applying a force to the toggle member 160, causing the toggle member 160 to drive the transmission shaft 150 toward the wind sweeping drive member.

[0052] In summary, the air guide plate transmission assembly 100 provided in this embodiment provides sufficient operating space for the toggle member 160 by setting a clearance recess 120 on the support 110, thereby facilitating the axial movement of the transmission shaft 150 relative to the support 110, achieving the clearance of the air guide plate, and greatly reducing the difficulty of disassembly and assembly of the air guide plate.

[0053] See also Figure 4 and Figure 5 , Figure 4 FIG. 2 is a schematic structural diagram of an air conditioner 200 provided in this embodiment. Figure 5 Shown Figure 4 A magnified schematic diagram of area A in the middle.

[0054] The air conditioner 200 provided in this embodiment includes a main body 210, a wind sweeping drive member 220, an air guide plate 230 and the aforementioned air guide plate transmission assembly 100. The main body 210 is the middle frame of the indoor unit. The outer surface of the middle frame is concavely provided with a mounting groove. A rotating shaft 231 is provided on one side of the air guide plate 230. The rotating shaft 231 is rotatably embedded in the mounting groove. The two wind sweeping drive members 220 extend into the mounting groove from the two end positions of the rotating shaft 231 respectively, and there are gaps between the two ends of the rotating shaft 231 respectively. The two air guide plate transmission assemblies 100 are respectively arranged between the two ends of the rotating shaft 231 and the two wind sweeping drive members 220, and respectively cooperate with the rotating shaft 231 and the wind sweeping drive member 220 to achieve the function of transmitting the torque of the two wind sweeping drive members 220 to the two ends of the rotating shaft 231.

[0055] The end of the transmission shaft 150 corresponding to the first end 111 is the first plug end 151, and the end of the transmission shaft 150 corresponding to the second end 113 is the second plug end 153. A plug hole is recessed in the wind sweeping drive member 220, and the first plug end 151 is plugged into the plug hole, while the second plug end 153 is plugged into the rotating shaft 231. It will be understood that in order for the transmission shaft 150 to be able to move further toward the wind sweeping drive member 220 when plugged into the plug hole, that is, the transmission shaft 150 can be further inserted into the plug hole, a certain gap must exist between the bottom wall of the plug hole and the end wall of the first plug end 151 of the transmission shaft 150.

[0056] During the actual installation process, when the user pushes the drive shaft 150 toward the wind sweeping drive member 220 through the clearance recess 120, the gap between the bottom wall of the plug hole and the end wall of the first plug end 151 can ensure that the drive shaft 150 can move axially smoothly, so as to ensure that the second plug end 153 can completely withdraw from the installation position of the air guide plate 230, thereby making way for the installation of the air guide plate 230.

[0057] In summary, the air conditioner 200 provided in this embodiment has the characteristic that the air guide plate 230 is easy to assemble and disassemble.

[0058] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the scope defined by the claims.

Claims

1. A wind deflector transmission assembly, used in an air conditioner, characterized in that: The air deflector transmission assembly (100) includes a support (110) and a transmission shaft (150), wherein the support (110) is used to be mounted on the main body of the air conditioner, wherein the support (110) is provided with a first end (111) and a second end (113), and a toggle member (160) is protruded from the side wall of the transmission shaft (150), wherein the transmission shaft (150) passes through the support (110) from the first end (111) to the second end (113) and is rotatably engaged with the support (110), and the toggle member (160) is provided on the side wall of the transmission shaft (150). 0) corresponds to the end wall of the first end (111), the first end (111) is provided with a recess (120) for facilitating the shifting of the shifting member (160), the shifting member (160) being used to drive the transmission shaft (150) to move axially relative to the support (110), so that the two ends of the transmission shaft (150) are respectively plugged into the wind sweeping drive member and the wind guide plate of the air conditioner in sequence; the height of the shifting member (160) on the side wall of the transmission shaft (150) is lower than the height of the outer side wall of the support (110).

2. The air deflector transmission assembly according to claim 1, characterized in that: The clearance recess (120) is recessed on the outer side wall of the support (110), and the clearance recess (120) is connected to the end wall of the first end (111).

3. The air deflector transmission assembly according to claim 2, characterized in that: The clearance recess (120) extends from the outer side wall of the support (110) to a channel of the support (110) for the transmission shaft (150) to pass through.

4. The air deflector transmission assembly according to claim 2, characterized in that: The outer side wall of the support (110) and the bottom wall of the clearance recess (120) form a step structure.

5. The air deflector transmission assembly according to claim 4, characterized in that: In the radial direction of the transmission shaft (150), the distance from one end of the toggle member (160) away from the transmission shaft (150) to the axis of the transmission shaft (150) is greater than the distance from the bottom wall of the clearance recess (120) to the axis of the transmission shaft (150).

6. The air deflector transmission assembly according to any one of claims 1 to 5, characterized in that: The toggle member (160) is convexly arranged on the side wall of the transmission shaft (150).

7. The air deflector transmission assembly according to claim 6, characterized in that: The toggle member (160) is annular, and the center of the toggle member (160) is on the axis of the transmission shaft (150).

8. The air deflector transmission assembly according to any one of claims 1 to 5, characterized in that: The air deflector transmission assembly further includes a shaft sleeve (130), the transmission shaft (150) is rotatably engaged with the support (110) through the shaft sleeve (130), a mounting channel (112) is provided on the support (110) from the first end (111) to the second end (113), the shaft sleeve (130) is embedded in the mounting channel (112) and sleeved on the side wall of the transmission shaft (150), and a spacer ring wall (131) is protruded from the side wall of one end of the shaft sleeve (130) close to the toggle member (160), and the spacer ring wall (131) is used to isolate the toggle member (160) from the end wall of the first end (111).

9. The air deflector transmission assembly according to claim 8, characterized in that: The spacer ring wall (131) is provided with a clearance notch (133) at a position corresponding to the clearance recess (120); in the radial direction of the transmission shaft (150), the distance from the bottom wall of the clearance notch (133) to the axis of the transmission shaft (150) is smaller than the distance from the bottom wall of the clearance recess (120) to the axis of the transmission shaft (150).

10. An air conditioner, characterized in that: The invention comprises a main body (210), an air sweeping drive member (220), an air guide plate (230), a return spring (170), and an air guide plate transmission assembly (100) according to any one of claims 1 to 9, wherein the air sweeping drive member (220) and the air guide plate (230) are arranged on the main body (210) at a distance, the support (110) is arranged on the main body (210) between the air sweeping drive member (220) and the air guide plate (230), and the return spring (170) is arranged on the main body (210) at a position between the air sweeping drive member (220) and the air guide plate (230). One end of the transmission shaft (150) corresponding to the first end (111) is plugged into the wind sweeping drive member (220), and one end of the transmission shaft (150) corresponding to the second end (113) is plugged into the wind guide plate (230). The return spring (170) is sleeved on the transmission shaft (150), and both ends of the return spring (170) respectively abut against the wind sweeping drive member (220) and the side of the toggle member (160) away from the first end (111).

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