Machine head assembly and air outlet equipment

Abstract

The invention relates to the technical field of household appliances, and discloses a machine head assembly and air outlet equipment, the machine head assembly comprises: an air duct assembly, the air duct assembly comprises a main air duct, a central air duct and an annular air duct, the central air duct and the annular air duct are arranged at one end of the main air duct, and the annular air duct is arranged at the peripheral side of the central air duct; the heating assembly is arranged in the annular air duct; the driving assembly comprises an operating part and a rotating part, the operating part extends out of the air duct assembly, the operating part can drive the rotating part to rotate when moving, and a plurality of shifting grooves are formed in the rotating part in the circumferential direction at intervals; the air guide plate assembly comprises a plurality of air guide plates, the air guide plates are distributed on the peripheral side of the rotating part, each air guide plate comprises a plate body and a rocker, the rockers are arranged in the stirring grooves, and the rotating part drives the rockers to move when rotating so as to drive the air guide plates to rotate; the closing position is used for closing the central air duct, and the opening position is used for opening the central air duct.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, specifically to head unit components and air outlet devices. Background Technology

[0002] Some fans in related technologies have the function of blowing cold air and hot air. Usually, the heat source is placed in the air duct. The heat source will block the flow of cold air, affecting the air volume and noise of the whole machine. Furthermore, when blowing hot air, because the heat source cannot cover the air duct, cold air will be blown out at the same time, resulting in a poor user experience. Summary of the Invention

[0003] In view of this, the present invention provides a head assembly and an air outlet device to solve the problem of cold air being blown out when hot air is blown in the related art.

[0004] In a first aspect, the present invention provides a nose assembly, comprising: The air duct assembly includes a main air duct, a central air duct, and an annular air duct. The central air duct and the annular air duct are located at one end of the main air duct, and the annular air duct is located on the outer periphery of the central air duct. The heating element is located in the annular air duct; The drive assembly includes an operating component and a rotating component. The operating component extends beyond the air duct assembly. When the operating component moves, it can drive the rotating component to rotate. The rotating component is provided with a plurality of actuating grooves spaced apart along the circumference. An air guide plate assembly includes multiple air guide plates distributed on the outer periphery of the rotating member. Each air guide plate includes a plate body and a rocker arm, which is disposed in the actuation groove. When the rotating member rotates, it drives the rocker arm to move, thereby driving the air guide plate to rotate, so that the multiple air guide plates have a closed position for closing the central air duct and an open position for opening the central air duct.

[0005] Beneficial effects: When hot air is needed, the user operates the control component to drive the rotating component to rotate. The rotating component has multiple actuating grooves spaced around its circumference, and multiple air guide plates are distributed on the outer periphery of the rotating component. Each air guide plate includes a plate body and a rocker arm. The rocker arm is located in the actuating groove. When the rotating component rotates, it drives the rocker arm to move, thereby driving the air guide plate to rotate and rotate to the closed position. At this time, the central air duct is closed, and the heating element is activated. After the airflow enters the main air duct, it flows from the main air duct to the annular air duct. After being heated by the heating element, it is blown out. This can avoid the loss of hot air when it is delivered and reduce the loss of heat during heating. Furthermore, the heating element is located in the annular air duct. The air gathering effect of the annular air duct allows the airflow to flow evenly over the heating element, achieving the optimal heating effect. When cool air is needed, the user operates the control mechanism to rotate the rotating component. This rotation drives a rocker arm, which in turn rotates the air guide vanes to the open position. At this point, the central air duct is open, the heating element is deactivated, and airflow enters the main air duct, then flows to the central and annular air ducts before being expelled, ensuring a strong and large volume of cool air. The rotating component, operated by the control mechanism, can simultaneously rotate multiple air guide vanes, resulting in a simpler structure and lower cost.

[0006] In one alternative embodiment, the head assembly further includes a first grille, which is disposed opposite to the central air duct, and the operating element is rotatably connected to the first grille.

[0007] Beneficial effects: The first grille can partially obstruct the central air duct and the internal air guide plate assembly, ensuring safe operation. The operating component is rotatably connected to the first grille, allowing it to rotate relative to it. The user can rotate the operating component to drive the rotating component, which in turn moves a rocker arm, causing the air guide plates to rotate. This allows the multiple air guide plates to have both a closed position (closing the central air duct) and an open position (opening the central air duct).

[0008] In one alternative embodiment, the first grille has a central hole, and the operating element includes a support column that passes through the central hole and is connected to the rotating element.

[0009] Beneficial effects: By setting a central hole in the first grid, the support column passes through the central hole and connects with the rotating part. Therefore, the entire operating part is located in the center of the first grid, which facilitates the operation of the operating part and the installation of the operating part. The operating part occupies less space.

[0010] In one alternative embodiment, the operating element is provided with a latch that engages with the side of the first grille facing the central air duct.

[0011] Beneficial effects: The operating component is equipped with a buckle that engages with the side of the first grille facing the central air duct. The buckle can limit the position of the operating component and prevent it from falling out of the first grille.

[0012] In one alternative embodiment, the operating member is further provided with a protrusion that abuts against the side of the first grille opposite to the central air duct.

[0013] Beneficial effects: The protrusion abuts against the side of the first grille away from the central air duct, and the buckle engages with the side of the first grille facing the central air duct. The buckle and the protrusion can limit the position of the operating part in the axial direction.

[0014] In one alternative embodiment, the rotating member is provided with a rotating shaft, which is inserted into the support column.

[0015] Beneficial effects: The rotating component is equipped with a rotating shaft, which is plugged into the support column, thereby improving the assembly efficiency between the rotating component and the operating component.

[0016] In one optional embodiment, the head assembly includes a switch disposed on a circuit that supplies power to the heating element. The rotating component is linked to the switch. When the rotating component drives the air guide plate to rotate to the closed position, the switch is closed. When the rotating component drives the air guide plate to rotate to the open position, the switch is open.

[0017] Beneficial effects: The rotating component is linked to the switch. When hot air is needed, the user operates the control component to rotate the component. This rotation drives a rocker arm, which in turn rotates the air guide plate to the closed position. At this point, the central air duct is closed, the switch is closed, and the heating element is powered on. Airflow enters the main air duct and flows to the annular air duct, where it is heated by the heating element before being blown out. This avoids heat loss during hot air delivery and minimizes heat loss during heating. Furthermore, the heating element's location in the annular air duct ensures even airflow across the heating element, achieving optimal heating. When cold air is needed, the user operates the control component to rotate the component. This rotation drives a rocker arm, which in turn rotates the air guide plate to the open position. At this point, the central air duct is open, the switch is off, the heating element is not working, and airflow enters the main air duct and flows to both the central and annular air ducts before being blown out. This ensures a sufficiently strong and large volume of cold air. By linking the rotating component with the switch, the user is no longer required to control the heating element by turning it on or off, thus reducing the user's workload.

[0018] In one optional embodiment, the switch is provided with a rotating shaft, which is connected to the rotating component. When the rotating component drives the air guide plate to rotate to the closed position, it drives the rotating shaft to rotate so that the switch is closed. When the rotating component drives the air guide plate to rotate to the open position, it drives the rotating shaft to rotate so that the switch is open.

[0019] Beneficial effects: The switch is equipped with a rotating shaft, which can be used to close or open the switch by rotating the shaft. This makes it easy to close the switch when the rotating part drives the air guide plate to the closed position, and to open the switch when the rotating part drives the air guide plate to the open position.

[0020] In one alternative embodiment, the rotating member is provided with a connecting portion, which is inserted into the rotating shaft.

[0021] Beneficial effects: The rotating part is equipped with a connecting part, which is inserted and matched with the rotating shaft, which can improve the assembly efficiency of the rotating part and the rotating shaft.

[0022] In one optional embodiment, the air guide plate assembly includes a first mounting bracket, the first mounting bracket including a first central connecting portion and a first annular connecting portion, the air guide plate being rotatably disposed between the first central connecting portion and the first annular connecting portion, when the air guide plate is in the closed position, the plate bodies of each air guide plate are formed on the same plane or annular cone surface or adjacent plate bodies at least partially overlap, so as to block the connection between the main air duct and the central air duct, when the air guide plate is in the open position, an air-blocking opening is formed between adjacent plate bodies to allow airflow to pass through so as to connect the main air duct and the central air duct.

[0023] Beneficial effects: When the air guide plate is in the closed position, the plates of each air guide plate are formed on the same plane or annular cone surface or adjacent plates overlap at least partially, which can block the airflow from passing through the central air duct. When the air guide plate is in the open position, an air-blocking opening is formed between adjacent plates to allow the airflow to pass through the first mounting bracket.

[0024] In one optional embodiment, the first central connecting portion and the first annular connecting portion are connected by a plurality of radially arranged first connecting ribs. Along the radial direction of the main air duct, the first connecting ribs gradually tilt away from the main air duct. The air guide plate is disposed on the first mounting bracket. When the air guide plate is switched to the closed position, along the radial direction of the main air duct, the air guide plate gradually tilts away from the main air duct.

[0025] Beneficial effects: When the air guide plate is switched to the closed position, along the radial direction of the main air duct, the air guide plate gradually tilts away from the main air duct. The tilted air guide plate makes it easier for the airflow from the main air duct to flow into the annular air duct, reducing airflow resistance and avoiding airflow dead zones.

[0026] In one optional embodiment, the first central connecting portion and / or the first annular connecting portion are provided with a plurality of first slots along the circumferential direction, and the air guide plate includes a rotating shaft located at at least one end of the plate body, the rotating shaft being disposed in the first slot.

[0027] Beneficial effects: The air guide plate includes a rotating shaft located at at least one end of the plate body. The rotating shaft is located in the first slot, which facilitates the positioning and installation of the air guide plate, improves assembly efficiency, and allows the air guide plate to switch between the open and closed positions under the limit of the first slot.

[0028] In one optional embodiment, the head assembly further includes a housing, in which the main air duct, the air guide plate assembly, the rotating component, and the heating component are all disposed, and the first mounting bracket is connected to the housing.

[0029] Beneficial effects: By setting up an outer shell, the main air duct, air guide plate assembly, rotating parts and heating components are all located inside the outer shell, making the appearance more aesthetically pleasing. The first mounting bracket is connected to the outer shell, which can fix the first mounting bracket inside the outer shell.

[0030] In one optional embodiment, the air duct assembly includes an air duct structure, the air duct structure including a first annular wall panel, a first connecting wall panel and a second annular wall panel, the inner side of the first annular wall panel forms the main air duct, one end of the first connecting wall panel is connected to the outer wall of the first annular wall panel, the gap between the second annular wall panel and the first annular connecting portion forms the annular air duct, and the inner side of the first annular connecting portion forms the central air duct. Alternatively, the central air duct and the annular air duct are formed within the outer casing; Alternatively, the first mounting bracket may further include an annular connector surrounding the outside of the first annular connecting portion, the gap between the annular connector and the first annular connecting portion forming the annular air duct, and the inner side of the first annular connecting portion forming the central air duct.

[0031] In one optional embodiment, the outer casing includes a housing, a second central connecting portion, and a second annular connecting portion, wherein the second annular connecting portion is correspondingly connected to the first annular connecting portion.

[0032] Beneficial effect: The second annular connecting part is connected to the first annular connecting part, which can stably connect the first mounting bracket to the outer shell.

[0033] In one optional embodiment, the first annular connecting portion is provided with a plurality of first slots along the circumferential direction, and the second annular connecting portion is provided with a plurality of second slots along the circumferential direction. The second slots are arranged opposite to the first slots and correspond one-to-one. The plate body is provided with a rotating shaft at one end near the first annular connecting portion, and the rotating shaft near the first annular connecting portion is limited between the first slots and the second slots. And / or, the second central connecting portion is provided with a plurality of third slots along the circumferential direction, and the plate body is provided with a rotating shaft at one end near the second central connecting portion. The rotating shaft is rotatably disposed in the third slot, and the rotating shaft near the second central connecting portion is limited to the third slot and the first central connecting portion.

[0034] Beneficial effects: By providing a second slot at the second annular connecting part, when the first annular connecting part is connected to the second annular connecting part, the rotating shaft at one end of the plate is confined between the first slot of the first annular connecting part and the second slot of the second annular connecting part. This prevents the air guide plate from falling off the first mounting bracket and effectively prevents large-scale vertical and horizontal movement of the air guide plate's rotating shaft during rotation. By providing a third slot at the second central connecting part, the rotating shaft near the second central connecting part is confined between the third slot and the first central connecting part, effectively preventing large-scale vertical and horizontal movement of the air guide plate near the rotating shaft of the second central connecting part during rotation.

[0035] In one optional embodiment, the rotating member is rotatably engaged with the second central connecting portion, and a limiting structure is provided between the rotating member and the second central connecting portion, the limiting structure being used to limit the rotation angle of the rotating member.

[0036] Beneficial effects: The rotating part and the second central connecting part rotate in a rotatable fit, which can ensure the smooth rotation of the rotating part. By setting a limiting structure between the rotating part and the second central connecting part, the limiting structure is used to limit the rotation angle of the rotating part, which can ensure that the air guide plate can only switch between the open position and the closed position.

[0037] In one optional embodiment, the second central connecting portion is provided with an annular support portion, the annular support portion is provided with a limiting groove, the rotating member includes a rotating body and an annular boss provided on the rotating body, the annular boss is rotatably engaged with the annular support portion, the limiting structure includes a limiting groove and a limiting rib, one of the limiting groove and the limiting rib is provided in the annular support portion, the other of the limiting groove and the limiting rib is provided in the rotating body, and the limiting rib is located in the limiting groove.

[0038] Beneficial effects: The annular boss and the annular support rotate in a rotatable fit, ensuring smooth rotation of the rotating parts. One of the limiting groove and the limiting rib is located in the annular support, and the other is located in the rotating body. The limiting rib is located in the limiting groove. When the limiting rib abuts against one end of the limiting groove, the plate is parallel to the axis of the main air duct. When the limiting rib abuts against the other end of the limiting groove, the air guide plate is in the closed position.

[0039] In one optional embodiment, the rotating body is positioned between the annular support portion and the first central connecting portion, the first central connecting portion being provided with a limiting portion, the limiting portion restricting the rotating member from moving axially.

[0040] Beneficial effects: The limiting part restricts the axial movement of the rotating part, which can prevent the rocker arm of the air guide plate from disengaging from the actuation groove of the rotating part when the rotating part moves axially, thus preventing the air guide plate from smoothly switching between the open and closed positions.

[0041] In one alternative implementation, the nose assembly further includes: An annular grille, corresponding to the annular air duct; And / or, a second grille, the second grille being disposed at one end of the main air duct away from the central air duct, or the second grille being disposed at one end of the outer casing away from the central air duct.

[0042] Beneficial effects: By installing a ring-shaped grille, the heating components located within the ring-shaped air duct can be concealed, resulting in a more aesthetically pleasing appearance. It also prevents users from accidentally inserting their hands into the ring-shaped air duct, thus avoiding electrical safety hazards such as burns or electric shocks. Adding a second grille further enhances the overall appearance of the unit and ensures safe operation.

[0043] Secondly, the present invention also provides an air outlet device, comprising: The aforementioned head assembly.

[0044] In one alternative implementation, the air outlet device is a fan or a heater. Attached Figure Description

[0045] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0046] Figure 1 This is a cross-sectional view of a head assembly according to an embodiment of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 A cross-sectional view of the operating component after it is assembled with the first grille; Figure 4 for Figure 3 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram showing the assembly of the operating component with the first grille. Figure 6 This is an exploded view of a nose cone assembly according to an embodiment of the present invention; Figure 7 A schematic diagram showing the assembled housing, air guide plate, rotating parts, switch, and operating parts. Figure 8 for Figure 7 Enlarged view of point C in the middle; Figure 9 This is a schematic diagram of the outer casing; Figure 10 This is a schematic diagram of the operating components; Figure 11 Schematic diagram of rotating parts Figure 1 ; Figure 12 Schematic diagram of rotating parts Figure 2 ; Figure 13 This is a schematic diagram of a switch; Figure 14 This is a schematic diagram of the air guide plate; Figure 15 This is a schematic diagram of a first mounting bracket in an alternative embodiment; Figure 16 This is a schematic diagram of a first mounting bracket in another alternative embodiment.

[0047] Explanation of reference numerals in the attached figures: 1. Air duct structure; 101. Main air duct; 102. First annular wall panel; 103. First connecting wall panel; 104. Second annular wall panel; 2. Central air duct; 3. Annular air duct; 4. Air guide plate; 401. Plate body; 402. Rotating shaft; 403. Rocker arm; 5. Fan blade; 6. Main motor; 7. First mounting bracket; 701. First central connecting part; 702. First annular connecting part; 7021. Annular rib; 7022. Annular plate; 703. First slot; 704. First connecting rib; 705. First screw hole; 706. Limiting part; 707. Annular connecting piece; 8. Rotating part; 800. Rotating body; 801. Actuating groove; 802. Rotating shaft; 803. Connecting part; 8031. 2. Mounting hole; 804. Annular boss; 805. Limiting rib; 806. Annular stepped surface; 9. Operating component; 901. Friction part; 902. Support column; 903. Buckle; 904. Protrusion; 905. First mounting hole; 10. Switch; 1001. Rotating shaft; 11. Housing; 1101. Housing; 1102. Second annular connecting part; 1103. Second central connecting part; 1104. Second connecting rib; 1105. Second slot; 1106. Third slot; 1107. First screw post; 1108. Annular support part; 1109. Limiting groove; 1110. Shaft hole; 12. First grille; 13. Annular grille; 14. Second grille; 15. Heating element; 16. Fan blade knob. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0052] The following is combined Figures 1 to 16 The following describes embodiments of the present invention.

[0053] According to an embodiment of the present invention, in one aspect, a head assembly is provided, including: an air duct assembly, a heating assembly 15, a drive assembly, and an air guide plate assembly.

[0054] The air duct assembly includes a main air duct 101, a central air duct 2, and an annular air duct 3. The central air duct 2 and the annular air duct 3 are located at one end of the main air duct 101, and the annular air duct 3 is located on the outer periphery of the central air duct 2. The heating element 15 is located in the annular air duct 3. The driving assembly includes an operating element 9 and a rotating element 8. The operating element 9 extends outside the air duct assembly. When the operating element 9 moves, it can drive the rotating element 8 to rotate. The rotating element 8 is provided with multiple actuating grooves 801 at intervals along the circumference. The air guide plate assembly includes multiple air guide plates 4. The multiple air guide plates 4 are distributed on the outer periphery of the rotating element 8. The air guide plate 4 includes a plate body 401 and a rocker arm 403. The rocker arm 403 is located in the actuating groove 801. When the rotating element 8 rotates, it drives the rocker arm 403 to move, thereby driving the air guide plate 4 to rotate, so that the multiple air guide plates 4 have a closed position that closes the central air duct 2 and an open position that opens the central air duct 2.

[0055] In this embodiment, when hot air is needed, the user operates the operating component 9 to drive the rotating component 8 to rotate. The rotating component 8 is provided with multiple actuating grooves 801 spaced around its circumference, and multiple air guide plates 4 are distributed on the outer periphery of the rotating component 8. The air guide plate 4 includes a plate body 401 and a rocker arm 403. The rocker arm 403 is located in the actuating groove 801. When the rotating component 8 rotates, it drives the rocker arm 403 to move, thereby driving the air guide plate 4 to rotate, so that the air guide plate 4 rotates to the closed position. At this time, the central air duct 2 is closed, and the heating component 15 is activated. After the airflow enters the main air duct 101, it flows from the main air duct 101 to the annular air duct 3. After being heated by the heating component 15, it is blown out, which can avoid the loss of hot air when it is delivered and reduce the loss of heat during heating. Furthermore, the heating component 15 is located in the annular air duct 3. The air gathering effect of the annular air duct 3 makes the airflow flow evenly through the heating component 15, which can achieve the optimal heating effect. When cool air is needed, the user operates the control element 9 to rotate the rotating element 8. The rotation of the rotating element 8 drives the rocker arm 403, which in turn rotates the air guide plate 4 to the open position. At this time, the central air duct 2 is open, the heating element 15 is not working, and the airflow enters the main air duct 101, flowing from the main air duct 101 to the central air duct 2 and the annular air duct 3 respectively. The airflow is then blown out through the central air duct 2 and the annular air duct 3, ensuring a sufficiently strong and large volume of cool air. Operating the control element 9 to rotate the rotating element 8 can simultaneously rotate multiple air guide plates 4, resulting in a simpler structure and lower cost.

[0056] Specifically, the joystick 403 and the plate 401 are not coplanar.

[0057] It should be noted that "multiple" means at least two, and "multiple air guides 4" specifically refers to at least two air guides 4.

[0058] In one specific embodiment, the main air duct 101 is provided with a fan blade 5 and a main motor 6 that can drive the fan blade 5 to rotate.

[0059] In one specific embodiment, a main motor 6 bracket is provided inside the main air duct 101. The main motor 6 is fixed behind the main motor 6 bracket and connected to the motor rear cover. The motor rear cover is fixedly connected to the main motor 6 bracket and surrounds the main motor 6.

[0060] In one specific embodiment, the fan blade 5 is an axial flow fan blade.

[0061] In one specific embodiment, the fan blade 5 is fixed by the fan blade knob 16 after being installed on the output shaft of the main motor 6.

[0062] In one embodiment, the head assembly further includes a first grille 12, which is disposed opposite to the central air duct 2, and the operating member 9 is rotatably connected to the first grille 12.

[0063] In this embodiment, the first grille 12 can partially obstruct the central air duct 2 and the internal air guide plate assembly, while ensuring safe use. The operating component 9 is rotatably connected to the first grille 12, so the operating component 9 can rotate relative to the first grille 12. The user can rotate the operating component 9 to drive the rotating component 8 to rotate. When the rotating component 8 rotates, it drives the rocker arm 403 to move, thereby driving the air guide plate 4 to rotate, so that the multiple air guide plates 4 have a closed position for closing the central air duct 2 and an open position for opening the central air duct 2.

[0064] In an alternative embodiment, the operating element 9 may be connected to the outer peripheral side of the rotating element 8, and the user may rotate the rotating element 8 by moving the operating element 9.

[0065] Specifically in one embodiment, such as Figure 10 As shown, the outer periphery of the operating member 9 is provided with a friction part 901, and the user's finger contacts the friction part 901 to rotate the operating member 9.

[0066] In one specific embodiment, a grip portion may be provided at the center of the end of the operating member 9, and the user may pinch the grip portion to rotate the operating member 9.

[0067] In one embodiment, the first grille 12 has a central hole, and the operating member 9 includes a support column 902, which passes through the central hole and is connected to the rotating member 8.

[0068] In this embodiment, by providing a central hole in the first grille 12, the support column 902 passes through the central hole and connects to the rotating member 8. Therefore, the operating member 9 is located at the center of the first grille 12, which facilitates the operation of the operating member 9 and the installation of the operating member 9. The operating member 9 occupies a small space.

[0069] In an alternative embodiment, the support column 902 can be eccentrically connected to the rotating member 8, requiring the first grille 12 to provide clearance holes for the movement of the support column 902.

[0070] In one embodiment, such as Figure 2 and Figure 4 The operating component 9 is equipped with a buckle 903, which engages with the side of the first grille 12 facing the central air duct 2.

[0071] In this embodiment, the operating member 9 is provided with a buckle 903, which is engaged with the side of the first grille 12 facing the central air duct 2. The buckle 903 can limit the position of the operating member 9 and prevent the operating member 9 from falling out of the first grille 12.

[0072] Specifically, the buckle 903 has a certain elasticity. During installation, the support column 902 passes through the central hole. During the process of passing through the central hole, the buckle 903 retracts. After passing through the central hole, the buckle 903 returns to its initial state, thereby engaging with the side of the first grille 12 facing the central air duct 2.

[0073] In one embodiment, the operating member 9 is further provided with a protrusion 904, which abuts against the side of the first grille 12 away from the central air duct 2.

[0074] In this embodiment, the protrusion 904 abuts against the side of the first grille 12 away from the central air duct 2, and the buckle 903 engages with the side of the first grille 12 facing the central air duct 2. The buckle 903 and the protrusion 904 cooperate to limit the position of the operating member 9 in the axial direction.

[0075] In one embodiment, the rotating member 8 is provided with a rotating shaft 802, which is inserted into and engaged with the support column 902.

[0076] In this embodiment, the rotating component 8 is provided with a rotating shaft 802, which is inserted and engaged with the support column 902, thereby improving the assembly efficiency between the rotating component 8 and the operating component 9.

[0077] Specifically in one embodiment, such as Figure 10 and Figure 11 The support column 902 is provided with a first mounting hole 905. The shape of the first mounting hole 905 is adapted to the shape of the rotating shaft 802, so that the support column 902 and the rotating shaft 802 can be inserted and matched. The cross section of the first mounting hole 905 is non-circular, so that the rotating component 8 can be driven to rotate synchronously when the operating component 9 is rotated.

[0078] In one embodiment, the head assembly includes a switch 10, which is located on the circuit that supplies power to the heating element 15. A rotating member 8 is linked to the switch 10. When the rotating member 8 drives the air guide plate 4 to rotate to the closed position, the switch 10 is closed. When the rotating member 8 drives the air guide plate 4 to rotate to the open position, the switch 10 is opened.

[0079] In this embodiment, the rotating component 8 is linked with the switch 10. When hot air is needed, the user operates the operating component 9 to drive the rotating component 8 to rotate. When the rotating component 8 rotates, it drives the rocker arm 403 to move, thereby driving the air guide plate 4 to rotate, so that the air guide plate 4 rotates to the closed position. At this time, the central air duct 2 is closed, and the switch 10 is closed. The heating component 15 is powered on and works. After the airflow enters the main air duct 101, it flows from the main air duct 101 to the annular air duct 3. After being heated by the heating component 15, it is blown out. This can avoid the loss of hot air when it is delivered and reduce the loss of heat during heating. Furthermore, the heating component 15 is located in the annular air duct 3. The air gathering effect of the annular air duct 3 makes the airflow flow evenly through the heating component 15, which can achieve the optimal heating effect. When cool air is needed, the user operates the control element 9 to rotate the rotating element 8. The rotation of the rotating element 8 causes the rocker arm 403 to move, which in turn rotates the air guide plate 4 to the open position. At this time, the central air duct 2 opens, the switch 10 is off, the heating element 15 is not working, and the airflow enters the main air duct 101, flowing from the main air duct 101 to the central air duct 2 and the annular air duct 3 respectively. The airflow is then blown out through the central air duct 2 and the annular air duct 3, ensuring a sufficiently strong and large volume of cool air. By linking the rotating element 8 with the switch 10, the user does not need to manually control the power supply to or off of the heating element 15, reducing user intervention.

[0080] In one embodiment, the switch 10 is provided with a rotating shaft 1001, which is connected to a rotating member 8. When the rotating member 8 drives the air guide plate 4 to rotate to the closed position, it drives the rotating shaft 1001 to rotate so that the switch 10 is closed. When the rotating member 8 drives the air guide plate 4 to rotate to the open position, it drives the rotating shaft 1001 to rotate so that the switch 10 is opened.

[0081] In this embodiment, the switch 10 is provided with a rotating shaft 1001. The rotation of the rotating shaft 1001 enables the switch 10 to be closed or opened, thereby facilitating the closing of the switch 10 when the rotating member 8 drives the air guide plate 4 to the closed position, and the opening of the switch 10 when the rotating member 8 drives the air guide plate 4 to the open position.

[0082] In one embodiment, the rotating member 8 is provided with a connecting part 803, which is inserted into the rotating shaft 1001.

[0083] In this embodiment, the rotating component 8 is provided with a connecting part 803, which is inserted and engaged with the rotating shaft 1001, thereby improving the assembly efficiency of the rotating component 8 and the rotating shaft 1001.

[0084] Specifically in one embodiment, such as Figure 12 and Figure 13As shown, the connecting part 803 is provided with a second mounting hole 8031. The shape of the second mounting hole 8031 ​​is adapted to the shape of the rotating shaft 1001, thereby realizing the quick insertion of the connecting part 803 and the rotating shaft 1001. The shape of the second mounting hole 8031 ​​is non-circular, which can realize that the rotating part 8 drives the rotating shaft 1001 to rotate synchronously when it rotates.

[0085] In one embodiment, the air guide plate assembly includes a first mounting bracket 7, which includes a first central connecting portion 701 and a first annular connecting portion 702. The air guide plate 4 is rotatably disposed between the first central connecting portion 701 and the first annular connecting portion 702. When the air guide plate 4 is in the closed position, the plate bodies 401 of each air guide plate 4 are formed on the same plane or annular cone surface, or adjacent plate bodies 401 at least partially overlap to block the communication between the main air duct 101 and the central air duct 2. When the air guide plate 4 is in the open position, an air vent is formed between adjacent plate bodies 401 to allow airflow to pass through so that the main air duct 101 and the central air duct 2 can communicate.

[0086] In this embodiment, when the air guide plate 4 is in the closed position, the plate bodies 401 of each air guide plate 4 are formed on the same plane or an annular cone surface, or adjacent plate bodies 401 at least partially overlap, which can block the airflow from passing through the central air duct 2. When the air guide plate 4 is in the open position, an air-blocking opening is formed between adjacent plate bodies 401 to allow the airflow to pass through the first mounting bracket 7. By setting the first mounting bracket 7, the air guide plate assembly can be pre-assembled, which facilitates the assembly of the entire head assembly.

[0087] In this embodiment, the plate 401 is a flat plate. When the plate 401 is a curved plate, the air guide plate 4 is in the open position, and the air passage between two adjacent plates 401 can allow airflow to pass through.

[0088] In one specific embodiment, the switch 10 is fixed to the first central connection portion 701.

[0089] In one embodiment, the first central connecting part 701 and the first annular connecting part 702 are connected by a plurality of radially arranged first connecting ribs 704. Along the radial direction of the main air duct 101, the first connecting ribs 704 gradually tilt away from the main air duct 101. The air guide plate 4 is disposed on the first mounting bracket 7. When the air guide plate 4 is switched to the closed position, along the radial direction of the main air duct 101, the air guide plate 4 gradually tilts away from the main air duct 101.

[0090] In this embodiment, when the air guide plate 4 is switched to the closed position, along the radial direction of the main air duct 101, the air guide plate 4 gradually tilts away from the main air duct 101. The tilted air guide plate 4 makes it easier for the airflow flowing out of the main air duct 101 to flow into the annular air duct 3, reducing airflow resistance and avoiding airflow dead zones.

[0091] Specifically, the head assembly also includes a housing 11. The air guide plate assembly is positioned between the first mounting bracket 7 and the housing 11, along the radial direction of the main air duct 101. The first connecting rib 704 gradually tilts away from the main air duct 101, and the first central connecting part 701 is closer to the main air duct 101, so that a larger space is formed between the first mounting bracket 7 and the housing 11 to accommodate the air guide plate assembly, avoiding the unsightly appearance caused by the housing 11 protruding outward.

[0092] In a preferred embodiment, when the air guide plate 4 is in the open position, the plate body 401 is parallel to the axis of the main air duct 101.

[0093] In one specific embodiment, the plate body 401 of the air guide plate 4 is fan-shaped, and multiple air guide plates 4 are evenly arranged circumferentially. When multiple air guide plates 4 are simultaneously in the closed position, the multiple air guide plates 4 are in a plane or annular cone, or the plate bodies 401 of adjacent air guide plates 4 at least partially overlap.

[0094] In one embodiment, the first central connecting portion 701 and / or the first annular connecting portion 702 are provided with a plurality of first slots 703 in the circumferential direction, and the air guide plate 4 includes a rotating shaft 402 located at at least one end of the plate body 401, the rotating shaft 402 being disposed in the first slots 703.

[0095] In this embodiment, the air guide plate 4 includes a rotating shaft 402 located at at least one end of the plate body 401. The rotating shaft 402 is disposed in the first slot 703, which facilitates the positioning and installation of the air guide plate 4, improves assembly efficiency, and also allows the air guide plate 4 to switch between the open and closed positions under the limitation of the first slot 703.

[0096] In a preferred embodiment, both the first central connecting portion 701 and the first annular connecting portion 702 are provided with a plurality of first slots 703 along the circumferential direction. The first slots 703 provided in the first central connecting portion 701 and the first slots 703 provided in the first annular connecting portion 702 correspond one-to-one. The air guide plate 4 includes a rotating shaft 402 located at both ends of the plate body 401, and the rotating shafts 402 at both ends are disposed in the corresponding first slots 703.

[0097] Specifically, the rocker arm 403 is connected to the rotating shaft 402 near the rotating member 8.

[0098] In one embodiment, the head assembly further includes a housing 11, and the main air duct 101, the air guide plate assembly, the rotating part 8 and the heating component 15 are all disposed inside the housing 11, and the first mounting bracket 7 is connected to the housing 11.

[0099] In this embodiment, by setting the outer shell 11, the main air duct 101, the air guide plate assembly, the rotating part 8 and the heating component 15 are all located inside the outer shell 11, making the appearance more aesthetically pleasing. The first mounting bracket 7 is connected to the outer shell 11, which can fix the first mounting bracket 7 inside the outer shell 11.

[0100] During assembly, the air guide plate assembly can be assembled into a whole first, and then the first mounting bracket 7 in the air guide plate assembly can be installed inside the housing 11 to assemble the air guide plate assembly into the housing 11. Alternatively, multiple air guide plates 4 can be assembled into the housing 11 first, and then the first mounting bracket 7 can be connected to the housing 11 to limit the position of the air guide plate 4.

[0101] In one embodiment, the air duct assembly includes an air duct structure 1, which includes a first annular wall panel 102, a first connecting wall panel 103, and a second annular wall panel 104. The inner side of the first annular wall panel 102 forms a main air duct 101, one end of the first connecting wall panel 103 is connected to the outer wall of the first annular wall panel 102, and the gap between the second annular wall panel 104 and the first annular connecting portion 702 forms an annular air duct 3. The inner side of the first annular connecting portion 702 forms a central air duct 2.

[0102] In an alternative embodiment, the central air duct 2 and the annular air duct 3 are formed within the housing 11, and in this embodiment, the structure of the first mounting bracket 7 is as follows: Figure 15 As shown.

[0103] In another alternative embodiment, such as Figure 16 As shown, the first mounting bracket 7 also includes an annular connector 707 surrounding the outside of the first annular connecting portion 702. The gap between the annular connector 707 and the first annular connecting portion 702 forms an annular air duct 3, and the inner side of the first annular connecting portion 702 forms a central air duct 2.

[0104] In one specific embodiment, the first annular connecting part 702 includes an annular rib 7021 and an annular plate 7022, the gap between the second annular wall plate 104 and the annular plate 7022 forms an annular air duct 3, and the inner side of the annular plate 7022 forms a central air duct 2.

[0105] In one embodiment, such as Figure 9 As shown, the outer casing 11 includes a housing 1101, a second central connecting portion 1103, and a second annular connecting portion 1102, with the second annular connecting portion 1102 correspondingly connected to the first annular connecting portion 702.

[0106] In this embodiment, the second annular connecting part 1102 is connected to the first annular connecting part 702, which can stably connect the first mounting bracket 7 to the outer shell 11.

[0107] In one specific embodiment, the outer casing 11 further includes a second central connecting portion 1103, which is connected to the second annular connecting portion 1102 by a plurality of second connecting ribs 1104.

[0108] Specifically, the end of the second connecting rib 1104 or the second annular connecting part 1102 is provided with a first screw post 1107, and the end of the first connecting rib 704 or the first annular connecting part 702 is provided with a first screw hole 705. The screw passes through the first screw hole 705 and is tightened in the first screw post 1107 to fix the first mounting bracket 7 to the outer shell 11.

[0109] Specifically, the second central connecting part 1103 is provided with a shaft hole 1110, and the rotating shaft 802 of the rotating member 8 passes through the shaft hole 1110 and is inserted into the support column 902.

[0110] In one embodiment, the first annular connecting portion 702 is provided with a plurality of first slots 703 along the circumferential direction, and the second annular connecting portion 1102 is provided with a plurality of second slots 1105 along the circumferential direction. The second slots 1105 are arranged opposite to the first slots 703 and correspond one-to-one. The plate body 401 is provided with a rotating shaft 402 at one end near the first annular connecting portion 702. The rotating shaft 402 near the first annular connecting portion 702 is limited between the first slots 703 and the second slots 1105. And / or, the second central connecting portion 1103 is provided with a plurality of third slots 1106 along the circumferential direction, and the plate body 401 is provided with a rotating shaft 402 at one end near the second central connecting portion 1103. The rotating shaft 402 is rotatably disposed in the third slots 1106, and the rotating shaft 402 near the second central connecting portion 1103 is limited between the third slots 1106 and the first central connecting portion 701.

[0111] In this embodiment, by providing a second slot 1105 in the second annular connecting portion 1102, when the first annular connecting portion 702 is connected to the second annular connecting portion 1102, the rotating shaft 402 at one end of the plate 401 is limited between the first slot 703 of the first annular connecting portion 702 and the second slot 1105 of the second annular connecting portion 1102. This prevents the air guide plate 4 from falling off the first mounting bracket 7 and also effectively prevents the rotating shaft 402 of the air guide plate 4 from moving significantly up, down, left, and right when rotating. By providing a third slot 1106 in the second central connecting portion 1103, the rotating shaft 402 near the second central connecting portion 1103 is limited between the third slot 1106 and the first central connecting portion 701. This effectively prevents the rotating shaft 402 of the air guide plate 4 near the second central connecting portion 1103 from moving significantly up, down, left, and right when rotating.

[0112] In one embodiment, the rotating member 8 is rotatably engaged with the second central connecting part 1103, and a limiting structure is provided between the rotating member 8 and the second central connecting part 1103. The limiting structure is used to limit the rotation angle of the rotating member 8.

[0113] In this embodiment, the rotating member 8 is rotatably engaged with the second central connecting part 1103, which can ensure the smooth rotation of the rotating member 8. By setting a limiting structure between the rotating member 8 and the second central connecting part 1103, the limiting structure is used to limit the rotation angle of the rotating member 8, which can ensure that the air guide plate 4 can only switch between the open position and the closed position.

[0114] In one embodiment, such as Figure 9 and Figure 11 As shown, the second central connecting part 1103 is provided with an annular support part 1108, the annular support part 1108 is provided with a limiting groove 1109, the rotating part 8 includes a rotating body 800 and an annular boss 804 provided on the rotating body 800, the annular boss 804 is rotatably engaged with the annular support part 1108, the limiting structure includes a limiting groove 1109 and a limiting rib 805, one of the limiting groove 1109 and the limiting rib 805 is provided in the annular support part 1108, the other of the limiting groove 1109 and the limiting rib 805 is provided in the rotating body 800, and the limiting rib 805 is located in the limiting groove 1109.

[0115] In this embodiment, the annular boss 804 rotatably engages with the annular support portion 1108, ensuring smooth rotation of the rotating component 8. One of the limiting groove 1109 and the limiting rib 805 is located in the annular support portion 1108, and the other of the limiting groove 1109 and the limiting rib 805 is located in the rotating body 800. The limiting rib 805 is located in the limiting groove 1109. When the limiting rib 805 abuts against one end of the limiting groove 1109, the plate 401 is parallel to the axis of the main air duct 101. When the limiting rib 805 abuts against the other end of the limiting groove 1109, the air guide plate 4 is in the closed position.

[0116] Specifically in one embodiment, such as Figure 8 As shown, the annular boss 804 is rotatably disposed on the inner side of the annular support portion 1108.

[0117] In one specific embodiment, the limiting rib 805 is provided on one side of the annular boss 804, and the limiting groove 1109 is provided on the annular support portion 1108.

[0118] In one embodiment, the rotating body 800 is located between the annular support portion 1108 and the first central connecting portion 701. The first central connecting portion 701 is provided with a limiting portion 706, which restricts the rotating member 8 from moving axially.

[0119] In this embodiment, the limiting part 706 restricts the axial movement of the rotating member 8, which can prevent the rocker arm 403 of the air guide plate 4 from disengaging from the actuation groove 801 of the rotating member 8 when the rotating member 8 moves axially, thus preventing the air guide plate 4 from smoothly switching between the open and closed positions.

[0120] In one specific embodiment, the rotating body 800 has an annular stepped surface 806 on the side facing the first central connecting part 701. The limiting part 706 abuts against the annular stepped surface 806 or has a gap to restrict the axial movement of the rotating member 8. This can prevent the rocker arm 403 of the air guide plate 4 from disengaging from the actuating groove 801 of the rotating member 8 when the rotating member 8 moves axially, thus preventing the air guide plate 4 from smoothly switching between the open and closed positions.

[0121] In one embodiment, the head assembly further includes: an annular grille 13, corresponding to the annular air duct 3; and / or, the head assembly further includes a second grille 14, the second grille 14 being disposed at one end of the main air duct 101 away from the central air duct 2, or the second grille 14 being disposed at one end of the housing 11 away from the central air duct 2.

[0122] In this embodiment, by providing an annular grille 13, the heating element 15 located within the annular air duct 3 can be concealed, resulting in a more aesthetically pleasing appearance. This also prevents users from accidentally inserting their hands into the annular air duct 3, which could lead to burns or electric shocks. By providing a second grille 14, the overall appearance of the head assembly can be further enhanced, while ensuring safe operation.

[0123] According to an embodiment of the present invention, in another aspect, an air outlet device is also provided, including: the head assembly provided in the above embodiment.

[0124] In one embodiment, the air outlet device is a fan or a heater.

[0125] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by this application.

Claims

1. A head assembly, characterized in that, include: The air duct assembly includes a main air duct (101), a central air duct (2) and an annular air duct (3), wherein the central air duct (2) and the annular air duct (3) are located at one end of the main air duct (101) and the annular air duct (3) is located on the outer periphery of the central air duct (2); A heating element (15) is disposed in the annular air duct (3); The drive assembly includes an operating member (9) and a rotating member (8). The operating member (9) extends out of the air duct assembly. When the operating member (9) is active, it can drive the rotating member (8) to rotate. The rotating member (8) is provided with a plurality of actuating grooves (801) spaced apart in the circumferential direction. The air guide plate assembly includes multiple air guide plates (4), which are distributed on the outer periphery of the rotating member (8). Each air guide plate (4) includes a plate body (401) and a rocker arm (403). The rocker arm (403) is located in the actuation groove (801). When the rotating member (8) rotates, it drives the rocker arm (403) to move, thereby driving the air guide plate (4) to rotate, so that the multiple air guide plates (4) have a closed position for closing the central air duct (2) and an open position for opening the central air duct (2).

2. The head assembly according to claim 1, characterized in that, The head assembly also includes a first grille (12), which is disposed opposite to the central air duct (2), and the operating element (9) is rotatably connected to the first grille (12).

3. The head assembly according to claim 2, characterized in that, The first grille (12) has a central hole, and the operating member (9) includes a support column (902), which passes through the central hole and is connected to the rotating member (8).

4. The head assembly according to claim 3, characterized in that, The operating component (9) is provided with a buckle (903), which engages with the side of the first grille (12) facing the central air duct (2).

5. The head assembly according to claim 4, characterized in that, The operating component (9) is also provided with a protrusion (904), which abuts against the side of the first grille (12) away from the central air duct (2).

6. The head assembly according to claim 3, characterized in that, The rotating component (8) is provided with a rotating shaft (802), which is inserted into the support column (902).

7. The head assembly according to any one of claims 1 to 6, characterized in that, The head assembly includes a switch (10), which is located on the circuit that supplies power to the heating component (15). The rotating part (8) is linked to the switch (10). When the rotating part (8) drives the air guide plate (4) to rotate to the closed position, the switch (10) is closed. When the rotating part (8) drives the air guide plate (4) to rotate to the open position, the switch (10) is open.

8. The head assembly according to claim 7, characterized in that, The switch (10) is provided with a rotating shaft (1001), which is connected to the rotating component (8). When the rotating component (8) drives the air guide plate (4) to rotate to the closed position, it drives the rotating shaft (1001) to rotate so that the switch (10) is closed. When the rotating component (8) drives the air guide plate (4) to rotate to the open position, it drives the rotating shaft (1001) to rotate so that the switch (10) is open.

9. The head assembly according to claim 8, characterized in that, The rotating component (8) is provided with a connecting part (803), which is inserted into the rotating shaft (1001).

10. The head assembly according to any one of claims 1 to 6, 8, and 9, characterized in that, The air guide plate assembly includes a first mounting bracket (7), which includes a first central connecting part (701) and a first annular connecting part (702). The air guide plate (4) is rotatably disposed between the first central connecting part (701) and the first annular connecting part (702). When the air guide plate (4) is in the closed position, the plate bodies (401) of each air guide plate (4) are formed on the same plane or annular cone surface or adjacent plate bodies (401) overlap at least partially to block the connection between the main air duct (101) and the central air duct (2). When the air guide plate (4) is in the open position, an air vent is formed between adjacent plate bodies (401) to allow airflow to pass through so that the main air duct (101) and the central air duct (2) can be connected.

11. The head assembly according to claim 10, characterized in that, The first central connecting part (701) and the first annular connecting part (702) are connected by a plurality of radially arranged first connecting ribs (704). Along the radial direction of the main air duct (101), the first connecting ribs (704) gradually tilt away from the main air duct (101). The air guide plate (4) is set on the first mounting bracket (7). When the air guide plate (4) is switched to the closed position, along the radial direction of the main air duct (101), the air guide plate (4) gradually tilts away from the main air duct (101).

12. The head assembly according to claim 10, characterized in that, The first central connecting part (701) and / or the first annular connecting part (702) are provided with a plurality of first slots (703) in the circumferential direction. The air guide plate (4) includes a rotating shaft (402) located at at least one end of the plate body (401), and the rotating shaft (402) is disposed in the first slot (703).

13. The head assembly according to claim 12, characterized in that, The head assembly also includes a housing (11), the main air duct (101), the air guide plate assembly, the rotating part (8) and the heating component (15) are all located inside the housing (11), and the first mounting bracket (7) is connected to the housing (11).

14. The head assembly according to claim 13, characterized in that, The air duct assembly includes an air duct structure (1), which includes a first annular wall panel (102), a first connecting wall panel (103), and a second annular wall panel (104). The inner side of the first annular wall panel (102) forms the main air duct (101), one end of the first connecting wall panel (103) is connected to the outer wall of the first annular wall panel (102), the gap between the second annular wall panel (104) and the first annular connecting part (702) forms the annular air duct (3), and the inner side of the first annular connecting part (702) forms the central air duct (2). Alternatively, the central air duct (2) and the annular air duct (3) are formed inside the outer shell (11); Alternatively, the first mounting bracket (7) may further include an annular connector (707) surrounding the outside of the first annular connecting portion (702), the gap between the annular connector (707) and the first annular connecting portion (702) forming the annular air duct (3), and the inner side of the first annular connecting portion (702) forming the central air duct (2).

15. The head assembly according to claim 13, characterized in that, The outer shell (11) includes a shell (1101), a second central connecting part (1103), and a second annular connecting part (1102), wherein the second annular connecting part (1102) is correspondingly connected to the first annular connecting part (702).

16. The head assembly according to claim 15, characterized in that, The first annular connecting part (702) is provided with a plurality of first slots (703) along the circumferential direction, and the second annular connecting part (1102) is provided with a plurality of second slots (1105) along the circumferential direction. The second slots (1105) are arranged opposite to the first slots (703) and correspond one to one. The plate body (401) is provided with a rotating shaft (402) at one end near the first annular connecting part (702). The rotating shaft (402) near the first annular connecting part (702) is limited between the first slots (703) and the second slots (1105). And / or, the second central connecting part (1103) is provided with a plurality of third slots (1106) in the circumferential direction, and the plate body (401) is provided with a rotating shaft (402) at one end near the second central connecting part (1103). The rotating shaft (402) is rotatably disposed in the third slot (1106), and the rotating shaft (402) near the second central connecting part (1103) is limited to the third slot (1106) and the first central connecting part (701).

17. The head assembly according to claim 15, characterized in that, The rotating component (8) is rotatably engaged with the second central connecting part (1103), and a limiting structure is provided between the rotating component (8) and the second central connecting part (1103), the limiting structure being used to limit the rotation angle of the rotating component (8).

18. The head assembly according to claim 17, characterized in that, The second central connecting part (1103) is provided with an annular support part (1108), the annular support part (1108) is provided with a limiting groove (1109), the rotating part (8) includes a rotating body (800) and an annular boss (804) provided on the rotating body (800). The annular boss (804) is rotatably engaged with the annular support part (1108). The limiting structure includes a limiting groove (1109) and a limiting rib (805). One of the limiting groove (1109) and the limiting rib (805) is provided in the annular support part (1108), and the other of the limiting groove (1109) and the limiting rib (805) is provided in the rotating body (800). The limiting rib (805) is located in the limiting groove (1109).

19. The head assembly according to claim 18, characterized in that, The rotating body (800) is located between the annular support portion (1108) and the first central connecting portion (701). The first central connecting portion (701) is provided with a limiting portion (706), which restricts the rotating member (8) from moving axially.

20. The nose assembly according to any one of claims 13 to 19, characterized in that, The head assembly also includes: Annular grille (13), corresponding to the annular air duct (3); And / or, a second grille (14), the second grille (14) being disposed at one end of the main air duct (101) away from the central air duct (2), or the second grille (14) being disposed at one end of the outer shell (11) away from the central air duct (2).

21. An air outlet device, characterized in that, include: The nose assembly according to any one of claims 1 to 20.

22. The air outlet device according to claim 21, characterized in that, The air outlet device is a fan or a heater.

Images