Air outlet device and head assembly

Abstract

The utility model relates to the technical field of household appliances, disclose air outlet equipment and head assembly, head assembly includes: fixed structure, including air duct, be equipped with first joint part in air duct, first mesh cover is equipped with the unlocking elastic buckle, the unlocking elastic buckle with first joint part joint, second mesh cover is connected with fixed structure, wire cover is movably located in fixed structure, wire cover includes unlocking portion, when wire cover is pressed, unlocking portion promotes unlocking elastic buckle and separates first joint part. The utility model is convenient for the installation and dismounting of first mesh cover, and appearance has no screw, is more beautiful.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to a head assembly and an air outlet device. Background Technology

[0002] Electric fans contain high-speed rotating blades, which pose a mechanical hazard if touched directly. Fans are protected by densely packed mesh covers to prevent direct contact. To further ensure fan safety, national standards stipulate that the mesh covers used to prevent direct contact with the blades must not be disassembled by hand; tools must be used for removal. This prevents accidental disassembly of the mesh covers and subsequent contact with the blades, which could lead to danger.

[0003] To meet national standards and ensure mechanical safety, the fan guards of related technologies are all locked with screws to prevent disassembly by hand. Therefore, when the fan guard or fan blades are dirty and need to be disassembled for cleaning, a screwdriver must be used to remove the guard, which is complicated. Utility Model Content

[0004] In view of this, the present invention provides a head assembly and an air outlet device to solve the problem of inconvenient disassembly of the mesh cover.

[0005] In a first aspect, this utility model provides a fan, comprising:

[0006] A fixed structure, including an air duct, wherein a first snap-fit ​​part is provided inside the air duct;

[0007] The first mesh cover is provided with an unlocking snap, which engages with the first locking part;

[0008] The second mesh cover is connected to the fixed structure;

[0009] A wire cover is movably disposed within the housing. The wire cover includes an unlocking part. When the wire cover is pressed, the unlocking part pushes the unlocking spring-loaded latch away from the first latching part.

[0010] Beneficial effects: Because the first mesh cover has an unlocking spring that engages with the first locking part, which is located inside the air duct, the unlocking spring is positioned within the duct, preventing the user from reaching inside to pry it open. This ensures the first mesh cover is locked in place. When the first mesh cover needs to be removed, a long, thin tool is used on the outside of the second mesh cover. The tool is inserted through the second mesh cover and pressed against the cable cover. The cable cover moves forward, and its unlocking part pushes the unlocking spring away from the first locking part, allowing the first mesh cover to be removed from the air duct. Therefore, this fan facilitates the installation and removal of the first mesh cover and has a more aesthetically pleasing, screwless design.

[0011] In one optional embodiment, the unlocking spring includes a first inclined surface and a first unlocking surface, and the unlocking part includes a second inclined surface and a second unlocking surface. When the wire cover is pressed, the second inclined surface contacts the first inclined surface to cause the unlocking spring to retract radially, and the second unlocking surface abuts against the first unlocking surface to push the unlocking spring to disengage axially from the first latching part.

[0012] Beneficial effects: When the wire cover is pressed, the second inclined surface contacts the first inclined surface. Therefore, when the wire cover moves, the second inclined surface can push the unlocking spring to retract radially, thereby separating it radially from the first locking part. The second unlocking surface abuts against the first unlocking surface, pushing the unlocking spring to detach axially from the first locking part, so that the unlocking spring can leave the air duct and be exposed. After that, it is convenient for the user to remove the first mesh cover.

[0013] In one optional embodiment, the first mesh cover is provided with a second snap-fit ​​portion, and the air duct is provided with a third snap-fit ​​portion, wherein the second snap-fit ​​portion is engaged with the third snap-fit ​​portion.

[0014] Beneficial effects: The first mesh cover has a second locking part, and the air duct has a third locking part. The second and third locking parts engage, and after the first mesh cover is installed in place, the engagement of the second and third locking parts effectively secures the first mesh cover. Of course, when it is necessary to remove the first mesh cover, after the unlocking snap exposes the air duct, the first mesh cover can be pried open to detach the second and third locking parts.

[0015] In one optional embodiment, the first mesh cover includes a first mesh cover body and a first mesh cover flange. The first mesh cover flange protrudes from the first mesh cover body and is adapted to be embedded in the air duct. The first mesh cover flange is provided with the unlocking snap, and the first mesh cover body is provided with a handle position. After the unlocking snap disengages from the first snap-fit ​​portion, the handle position is located on the outside of the air duct.

[0016] Beneficial effect: By setting a handle position, when it is necessary to remove the first mesh cover, after the unlocked spring buckle exposes the air duct, the handle position can be turned to remove the first mesh cover from the air duct.

[0017] In one alternative embodiment, the handle is located at a position where the first mesh cover body and the unlocking spring are axially opposite each other.

[0018] In one optional embodiment, the unlocking spring is provided with first limiting buckles on both sides and second limiting buckles on both sides of the first locking part. After the unlocking spring is disengaged from the first locking part, the first limiting buckles and the second limiting buckles are engaged.

[0019] Beneficial effects: After the unlocking spring releases from the first locking part, the first limiting buckle and the second limiting buckle engage. This prevents the unlocking spring release from re-engaging with the first locking part under the elastic force of the first mesh cover when the pressing of the wire cover stops and the wire cover is reset. This keeps the unlocking spring release in the position away from the first locking part, while also keeping the handle exposed, making it easy for the user to remove the first mesh cover.

[0020] In one optional embodiment, the fixing structure is provided with a first fastener, and the second mesh cover is rotatably installed into the fixing structure along a first direction. The second mesh cover is provided with an axial stop latching part and a fourth latching part. The first fastener and the axial stop latching part cooperate to prevent the second mesh cover from moving axially.

[0021] The wire cover includes a fifth snap-fit ​​portion. After the second mesh cover is installed in place, the fifth snap-fit ​​portion cooperates with the fourth snap-fit ​​portion to prevent the second mesh cover from rotating in a second direction, which is opposite to the first direction.

[0022] Beneficial effects: The second mesh cover is installed into the housing by rotating along the first direction. Once in place, the first latch and the axial stop engage to prevent the second mesh cover from moving axially, and the fifth and fourth latches engage to prevent the second mesh cover from rotating in the second direction. Therefore, the second mesh cover cannot be removed by rotation, ensuring it is locked in place. When it is necessary to remove the first and second mesh covers, a long tool is used on the outside of the second mesh cover. The tool is passed through the second mesh cover and pressed against the wire cover. The wire cover moves forward, and the unlocking part of the wire cover pushes the unlocking spring to disengage from the first latch, thus allowing the first mesh cover to be removed from the air duct. As the wire cover moves forward, it causes the fifth latch to disengage from the fourth latch, allowing the second mesh cover to rotate in the second direction. Therefore, the second mesh cover can be removed by rotating it. Thus, this fan facilitates the installation and removal of the first and second mesh covers, and its appearance is more aesthetically pleasing as it is screwless.

[0023] In one optional embodiment, the fan further includes an elastic element, a first end of which is limited to the fixed structure and a second end of which is limited to the wire cover. When the second mesh cover is rotated and installed into the housing in a first direction, it pushes the wire cover to move to compress the elastic element. After the second mesh cover is installed in place, the elastic force of the elastic element drives the fifth snap-fit ​​portion to engage with the fourth snap-fit ​​portion.

[0024] Beneficial effects: By incorporating an elastic element, when the second mesh cover is rotated and installed into the fixed structure in the first direction, it pushes the wire cover to move, compressing the elastic element. After the second mesh cover is in place, the elastic force of the elastic element drives the fifth locking part to engage with the fourth locking part. Therefore, the elastic element ensures that the fifth locking part can engage with the fourth locking part, preventing the second mesh cover from rotating in the second direction. Furthermore, when disassembling the first mesh cover, a long strip tool is inserted through the second mesh cover to press the wire cover. The wire cover moves forward, and the unlocking part of the wire cover pushes the unlocking spring to disengage from the first locking part. After the unlocking spring disengages from the first locking part, the pressure on the wire cover is released, and the elastic element can automatically reset.

[0025] In one alternative embodiment, the wire cover includes a mounting hole, and the second end of the elastic element is disposed within the mounting hole.

[0026] Beneficial effect: By setting the mounting hole, it is easy to limit the second end of the elastic element.

[0027] In one alternative embodiment, the wire cover has a third inclined surface, and the second mesh cover has a fourth inclined surface. When the wire cover is pressed, the third inclined surface and the fourth inclined surface cooperate to drive the second mesh cover to rotate in a second direction.

[0028] Beneficial effect: When the wire cover is pressed, the third and fourth inclined surfaces cooperate to drive the second mesh cover to rotate in the second direction, causing the fourth locking part to leave the position where it cooperates with the fifth locking part. Therefore, when the wire cover is released and reset, the fifth locking part will no longer block the second mesh cover from rotating in the second direction, ensuring that the second mesh cover can be disassembled.

[0029] In one optional embodiment, the fifth snap-fit ​​portion has a second connecting surface, the third inclined surface is disposed opposite to the second connecting surface, and after the second mesh cover is installed in place, the fourth snap-fit ​​portion is located in the gap between the third inclined surface and the second connecting surface.

[0030] Beneficial effect: After the second mesh cover is installed in place, the fourth snap-fit ​​part is located in the gap between the third inclined surface and the second connecting surface, and the second mesh cover will not rotate in the second direction.

[0031] In one alternative embodiment, one of the fixing structure and the wire cover is provided with a limiting hole, and the other is provided with a third limiting buckle, the third limiting buckle being adapted to move axially within the limiting hole.

[0032] Beneficial effects: The third limiting buckle is suitable for axial movement within the limiting hole, which can ensure that the wire cover will not leave the fixed structure, and the wire cover does not need to be removed when disassembling the first and second mesh covers.

[0033] In one optional embodiment, the wire cover has a horizontal portion and a vertical portion, and when the wire cover is provided with the third limiting buckle, the third limiting buckle is disposed on the horizontal portion and / or the vertical portion.

[0034] In one optional embodiment, the front end of the horizontal portion is provided with two protrusions, the second inclined surface is provided on the protrusions, and the second unlocking surface is located between the two protrusions.

[0035] In one alternative implementation, in the vertical direction, the top of the second unlocking surface is higher than the top of the protrusion.

[0036] In one alternative embodiment, the fixing structure further includes a housing, and the air duct is fixed inside the housing.

[0037] Beneficial effects: The fixed structure, including the outer shell and air duct, facilitates the processing of components.

[0038] In one optional embodiment, the air duct is provided with a fixing buckle, and the outer shell is provided with a snap-fit ​​portion that engages with the fixing buckle.

[0039] Beneficial effects: The air duct is equipped with a fixing buckle, and the outer shell is equipped with a snap-fit ​​part that engages with the fixing buckle. The air duct and the outer shell are snap-fitted together, and the assembly method is simple and convenient.

[0040] Secondly, this utility model also provides an air outlet device, including the aforementioned head assembly.

[0041] In one alternative implementation, the air outlet device is a fan or a heater. Attached Figure Description

[0042] To more clearly illustrate the specific embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0043] Figure 1 An explosion of a head assembly according to an embodiment of this utility model Figure 1 ;

[0044] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0045] Figure 3 An explosion of a head assembly according to an embodiment of this utility model Figure 2 ;

[0046] Figure 4 An explosion of a head assembly according to an embodiment of this utility model Figure 3 ;

[0047] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0048] Figure 6 for Figure 4 Enlarged view at point E in the middle;

[0049] Figure 7 An explosion of a head assembly according to an embodiment of this utility model Figure 4 ;

[0050] Figure 8 for Figure 7 Enlarged view of point C in the middle;

[0051] Figure 9 This is a rear view of a head assembly according to an embodiment of the present utility model;

[0052] Figure 10 for Figure 9 AA section view;

[0053] Figure 11 for Figure 9 BB cross-sectional view;

[0054] Figure 12 for Figure 11 Enlarged view of point D in the middle;

[0055] Figure 13 This is a cross-sectional view of a head assembly according to an embodiment of the present utility model;

[0056] Figure 14 This is a front view of a head assembly according to an embodiment of the present utility model;

[0057] Figure 15 for Figure 14 CC section view;

[0058] Figure 16 for Figure 14 DD sectional view;

[0059] Figure 17 Schematic diagram of the wire cover Figure 1 ;

[0060] Figure 18 Schematic diagram of the wire cover Figure 2 ;

[0061] Figure 19 Schematic diagram of the wire cover Figure 3 .

[0062] Explanation of reference numerals in the attached figures:

[0063] 1. Outer shell; 101. Mounting post; 102. First latch; 103. Limiting hole; 2. Air duct; 201. First snap-fit ​​part; 202. Third snap-fit ​​part; 203. Second limiting buckle; 204. Fixing buckle; 3. First mesh cover; 301. First mesh cover body; 302. First mesh cover flange; 303. Unlocking spring buckle; 3031. First inclined surface; 3032. First unlocking surface; 3033. Spring buckle body; 3034. First vertical side plate; 3035. Second vertical side plate; 304. Second snap-fit ​​part; 305. Handle position; 306. First limiting hole 4. Second mesh cover; 401. Axial stop snap-fit ​​part; 402. Fourth snap-fit ​​part; 4021. First connecting surface; 4022. First plane; 4023. Fourth inclined surface; 403. Rotating groove; 5. Wire cover; 501. Fifth snap-fit ​​part; 5011. Second connecting surface; 5012. Second plane; 502. Press mark part; 503. Horizontal part; 504. Vertical part; 505. Mounting hole; 506. Second inclined surface; 507. Second unlocking surface; 508. Protrusion; 509. Third inclined surface; 510. Third limit buckle; 6. Elastic element. Detailed Implementation

[0064] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0065] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0066] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model according to the specific circumstances.

[0067] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0068] Electric fans contain high-speed rotating blades, which pose a mechanical hazard if touched directly. Fans are protected by densely packed mesh covers to prevent direct contact. To further ensure fan safety, national standards stipulate that the mesh covers used to prevent direct contact with the blades must not be disassembled by hand; tools must be used for removal. This prevents accidental disassembly of the mesh covers and subsequent contact with the blades, which could lead to danger.

[0069] To meet national standards and ensure mechanical safety, the fan guards of related technologies are all locked with screws to prevent disassembly by hand. Therefore, when the fan guard or fan blades are dirty and need to be disassembled for cleaning, a screwdriver must be used to remove the guard, which is complicated.

[0070] Meanwhile, in order to facilitate the removal of the screws that fix the mesh cover, the screws must be placed on the appearance surface. Exposed screws result in an unrefined overall appearance. If secondary appearance treatments such as water transfer printing, spraying, or engraving are involved, the damage to the appearance will be further increased.

[0071] The following is combined Figures 1 to 19 The following describes embodiments of the present invention.

[0072] According to an embodiment of the present invention, a fan is provided, including a fixing structure, a first mesh cover 3, a second mesh cover 4, and a wire cover 5.

[0073] The fixed structure includes an air duct 2, which has a first locking part 201 inside; a first mesh cover 3 has an unlocking snap 303, which is locked to the first locking part 201; a second mesh cover 4 is connected to the fixed structure; and a wire cover 5 is movably disposed inside the fixed structure. The wire cover 5 includes an unlocking part, which pushes the unlocking snap 303 away from the first locking part 201 when the wire cover 5 is pressed.

[0074] In this embodiment, since the first mesh cover is equipped with an unlocking spring clip 303, which engages with the first latching part 201 located inside the air duct 2, the unlocking spring clip 303 is positioned inside the air duct 2, preventing the user from reaching inside to pry it open. This ensures the first mesh cover 3 is locked. When the first mesh cover 3 needs to be removed, a long, narrow tool is used on the outside of the second mesh cover 4 to press the cable cover 5 through it. The cable cover 5 moves forward, and its unlocking part pushes the unlocking spring clip 303 away from the first latching part 201, allowing the first mesh cover 3 to be removed from the air duct 2. Therefore, this fan facilitates the installation and removal of the first mesh cover 3, and its appearance is more aesthetically pleasing as it is screwless.

[0075] It should be noted that the wire cover 5 is located inside the fixed structure, and the user's fingers cannot touch the wire cover 5.

[0076] In one specific embodiment, the first mesh cover 3 is the front mesh, and the second mesh cover 4 is the rear mesh.

[0077] In one embodiment, such as Figure 2 , Figure 11 , Figure 12 The unlocking latch 303 includes a first inclined surface 3031 and a first unlocking surface 3032, such as Figure 17 , Figure 18 The unlocking part includes a second inclined surface 506 and a second unlocking surface 507. When the wire cover 5 is pressed, the second inclined surface 506 contacts the first inclined surface 3031 to cause the unlocking spring 303 to retract radially, and the second unlocking surface 507 abuts against the first unlocking surface 3032 to push the unlocking spring 303 to disengage axially from the first latching part 201.

[0078] In this embodiment, when the wire cover 5 is pressed, the second inclined surface 506 contacts the first inclined surface 3031. Therefore, when the wire cover 5 moves, the second inclined surface 506 can push the unlocking spring 303 to retract radially, thereby separating it radially from the first locking part 201. The second unlocking surface 507 abuts against the first unlocking surface 3032, pushing the unlocking spring 303 to axially disengage from the first locking part 201, so that the unlocking spring 303 can leave the air duct 2 and be exposed. After that, it is convenient for the user to remove the first mesh cover 3.

[0079] In one specific embodiment, from front to back, the first inclined surface 3031 is inclined toward the center of the first mesh cover 3, and the second inclined surface 506 is inclined toward the center of the outer shell 1.

[0080] In one specific embodiment, the first unlocking surface 3032 and the second unlocking surface 507 can be set at an angle or vertically.

[0081] In one specific embodiment, the second unlocking surface 507 is located behind the second inclined surface 506, and the first unlocking surface 3032 is located in front of the first inclined surface 3031. Therefore, when the wire cover 5 is pressed, the second inclined surface 506 first contacts the first inclined surface 3031, and after the unlocking snap 303 retracts radially, the second unlocking surface 507 contacts the first unlocking surface 3032.

[0082] Specifically in one embodiment, such as Figures 1 to 3 As shown, the unlocking spring clip 303 is located at the bottom of the first mesh cover 3.

[0083] In one specific embodiment, the first mesh cover 3 includes a first mesh cover body 301 and a first mesh cover flange 302. The first mesh cover flange 302 protrudes from the first mesh cover body 301 and is adapted to be embedded in the air duct 2. The first mesh cover flange 302 is provided with an unlocking snap 303. The unlocking snap 303 includes a snap body 3033 extending forward from the bottom of the first mesh cover body 301. The snap body 3033 has first vertical side plates 3034 on both sides and a second vertical side plate 3035 between the first vertical side plates 3034. The second vertical side plate 3035 is perpendicular to the two first vertical side plates 3034. The first vertical side plate 3034 has a first inclined surface 3031. The side of the second vertical side plate 3035 facing the air duct 2 constitutes a first unlocking surface 3032.

[0084] Specifically in one embodiment, such as Figure 4 As shown, the first latching part 201 is specifically a card slot, and the partially unlocking spring clip 303 is embedded in the card slot.

[0085] In one specific embodiment, the wire cover 5 includes a horizontal portion 503 and a vertical portion 504. The front end of the horizontal portion 503 is provided with two protrusions 508, and the protrusions 508 are provided with a second inclined surface 506. The second unlocking surface 507 is located between the two protrusions 508.

[0086] In one embodiment, in the vertical direction, the top of the second unlocking surface 507 is higher than the top of the protrusion 508.

[0087] In one embodiment, the first mesh cover 3 is provided with a second snap-fit ​​portion 304, and the air duct 2 is provided with a third snap-fit ​​portion 202, and the second snap-fit ​​portion 304 and the third snap-fit ​​portion 202 are engaged.

[0088] In this embodiment, the first mesh cover 3 is provided with a second snap-fit ​​portion 304, and the air duct 2 is provided with a third snap-fit ​​portion 202. The second snap-fit ​​portion 304 and the third snap-fit ​​portion 202 are fastened together. After the first mesh cover 3 is installed in place, the fastening of the second snap-fit ​​portion 304 and the third snap-fit ​​portion 202 can effectively fix the first mesh cover 3. Of course, when it is necessary to disassemble the first mesh cover 3, after the unlocking snap 303 exposes the air duct 2, the first mesh cover 3 can be pried open to disengage the second snap-fit ​​portion 304 from the third snap-fit ​​portion 202.

[0089] In one embodiment, the first mesh cover 3 includes a first mesh cover body 301 and a first mesh cover flange 302. The first mesh cover flange 302 protrudes from the first mesh cover body 301 and is adapted to be embedded in the air duct 2. The first mesh cover flange 302 is provided with an unlocking snap 303, and the first mesh cover body 301 is provided with a handle position 305. After the unlocking snap 303 disengages from the first latching part 201, the handle position 305 is located on the outside of the air duct 2.

[0090] In this embodiment, by setting the handle position 305, when it is necessary to disassemble the first mesh cover 3, after the unlocking spring buckle 303 exposes the air duct 2, the handle position 305 can be pried open to remove the first mesh cover 3 from the air duct 2.

[0091] In one embodiment, the handle position 305 is located at a position where the first mesh cover body 301 and the unlocking spring buckle 303 are axially opposite each other.

[0092] Specifically, the handle position 305 is located on the front side of the unlocking spring buckle 303.

[0093] In one embodiment, the unlocking spring 303 is provided with a first limiting buckle 306 on both sides, and the first locking part 201 is provided with a second limiting buckle 203 on both sides. After the unlocking spring 303 is disengaged from the first locking part 201, the first limiting buckle 306 and the second limiting buckle 203 are engaged.

[0094] In this embodiment, after the unlocking spring buckle 303 disengages from the first latching part 201, the first limiting buckle 306 engages with the second limiting buckle 203. This prevents the unlocking spring buckle 303 from re-engaging with the first latching part 201 under the elastic force of the first mesh cover 3 after the wire cover 5 is reset by stopping the pressing. This keeps the unlocking spring buckle 303 in the position disengaged from the first latching part 201, while also keeping the handle position 305 exposed, making it convenient for the user to disassemble the first mesh cover 3.

[0095] In one specific embodiment, since the unlocking spring buckle 303 is suspended, the two sides of the unlocking spring buckle 303 are slots, the first limiting buckle 306 is disposed on the side wall of the slot, the two sides of the first latching part 201 are protruding plates extending outward along the axial direction of the air duct 2, and the second limiting buckle 203 is disposed on the side of the protruding plate away from the first latching part 201.

[0096] The shapes of the first limiting buckle 306 and the second limiting buckle 203 are adapted to each other, one of which is a groove and the other is a protrusion.

[0097] In one embodiment, the fixing structure is provided with a first fastener 102, and the second mesh cover is rotatably installed into the fixing structure along a first direction. The second mesh cover 4 is provided with an axial stop latching part 401 and a fourth latching part 402. The first fastener 102 and the axial stop latching part 401 cooperate to prevent the second mesh cover 4 from moving axially. The wire cover 5 includes a fifth latching part 501. After the second mesh cover 4 is installed in place, the fifth latching part 501 and the fourth latching part 402 cooperate to prevent the second mesh cover 4 from rotating along a second direction, which is opposite to the first direction.

[0098] In this embodiment, the second mesh cover 4 is rotated and installed into the housing 1 along the first direction. After the second mesh cover 4 is installed in place, the first latch 102 and the axial stop latch 401 cooperate to prevent the second mesh cover 4 from moving axially. The fifth latch 501 and the fourth latch 402 cooperate to prevent the second mesh cover 4 from rotating in the second direction. Therefore, the second mesh cover 4 cannot be disassembled by rotation, ensuring that the second mesh cover 4 is locked. When it is necessary to remove the first mesh cover 3 and the second mesh cover 4, a long strip tool is used on the outside of the second mesh cover 4 to press the wire cover 5 through the second mesh cover 4. The wire cover 5 moves forward, and the unlocking part of the wire cover 5 pushes the unlocking spring 303 to disengage from the first latch 201, thereby removing the first mesh cover 3 from the air duct 2. When the wire cover 5 moves forward, it drives the fifth latch 501 to disengage from the fourth latch 402, and the second mesh cover 4 can rotate in the second direction. Therefore, the second mesh cover 4 can be removed by rotating it. Therefore, the fan facilitates the installation and removal of the first mesh cover 3 and the second mesh cover 4, and has a more aesthetically pleasing appearance as it is screwless.

[0099] Specifically, the first direction can be either clockwise or counterclockwise, and the second direction can be either clockwise or counterclockwise.

[0100] Specifically in one embodiment, such as Figure 7 and Figure 8 The fourth snap-fit ​​portion 402 has a first connecting surface 4021 and a first flat surface 4022, such as Figure 17 The fifth snap-fit ​​part 501 has a second connecting surface 5011 and a second plane 5012. When the second mesh cover 4 is installed in place, the first connecting surface 4021 and the second connecting surface 5011 cooperate to prevent the second mesh cover 4 from rotating in the second direction.

[0101] In one specific embodiment, the axial stop locking part 401 is provided with three circumferentially spaced parts, and the first fastening part 102 is provided with three corresponding parts.

[0102] Specifically in one embodiment, such as Figure 4 and Figure 5As shown, the second mesh cover 4 includes a second mesh cover body. Along the axial direction, an axial stop snap-fit ​​part 401 forms a rotating groove 403 between the second mesh cover 4 body and the second mesh cover 4 body. When the second mesh cover 4 is rotated and installed, the first buckle 102 enters the rotating groove 403, and the axial stop snap-fit ​​part 401 can prevent the first buckle 102 from moving along the axial direction.

[0103] In one embodiment, the fan further includes an elastic element 6, with a first end of the elastic element 6 limited to the fixed structure and a second end limited to the wire cover 5. When the second mesh cover 4 is rotated and installed into the fixed structure in the first direction, it pushes the wire cover 5 to move to compress the elastic element 6. After the second mesh cover 4 is installed in place, the elastic force of the elastic element 6 drives the fifth snap-fit ​​portion 501 to engage with the fourth snap-fit ​​portion 402.

[0104] In this embodiment, by providing the elastic element 6, when the second mesh cover 4 is rotated and installed into the fixed structure in the first direction, it pushes the wire cover 5 to move to compress the elastic element 6. After the second mesh cover 4 is installed in place, the elastic force of the elastic element 6 drives the fifth locking part 501 to cooperate with the fourth locking part 402. Therefore, the provision of the elastic element 6 can ensure that the fifth locking part 501 can cooperate with the fourth locking part 402, preventing the second mesh cover 4 from rotating in the second direction. Furthermore, when disassembling the first mesh cover 3, a long strip tool is passed through the second mesh cover 4 to press the wire cover 5. The wire cover 5 moves forward, and the unlocking part of the wire cover 5 pushes the unlocking spring buckle 303 to disengage from the first locking part 201. After the unlocking spring buckle 303 disengages from the first locking part 201, the pressure on the wire cover 5 is released, and the elastic element 6 can automatically reset.

[0105] In one specific embodiment, the fixed structure is provided with a mounting post 101, and the elastic element 6 is sleeved on the mounting post 101.

[0106] In one specific embodiment, the elastic element 6 is a spring.

[0107] In one specific embodiment, the wire cover 5 is provided with a pressing mark part 502. When disassembling the first mesh cover 3 and the second mesh cover 4, a long strip tool is passed through the second mesh cover 4 to press the pressing mark part 502.

[0108] In one specific embodiment, the wire cover 5 is L-shaped and includes a horizontal portion 503 and a vertical portion 504, with a pressing mark portion 502 disposed on the vertical portion 504.

[0109] In one embodiment, the wire cover 5 includes a mounting hole 505, and the second end of the elastic member 6 is disposed within the mounting hole 505.

[0110] In this embodiment, the mounting hole 505 is provided to facilitate the limiting of the second end of the elastic member 6.

[0111] In one specific embodiment, the inner diameter of the mounting hole 505 is larger than the outer diameter of the mounting post 101. When the wire cover 5 is pressed and moved, the wire cover 5 compresses the elastic element 6, and part of the mounting post 101 can enter the mounting hole 505.

[0112] In one specific embodiment, the mounting hole 505 is provided in the horizontal portion 503, and the mounting hole 505 extends rearward from the second unlocking surface 507.

[0113] In one embodiment, the wire cover 5 has a third inclined surface 509 and the second mesh cover 4 has a fourth inclined surface 4023. When the wire cover 5 is pressed, the third inclined surface 509 and the fourth inclined surface 4023 cooperate to drive the second mesh cover 4 to rotate in a second direction.

[0114] In this embodiment, when the wire cover 5 is pressed, the third inclined surface 509 and the fourth inclined surface 4023 cooperate to drive the second mesh cover 4 to rotate in the second direction, so that the fourth locking part 402 leaves the position that cooperates with the fifth locking part 501. Therefore, when the wire cover 5 is released and the wire cover 5 is reset, the fifth locking part 501 will no longer block the second mesh cover 4 from rotating in the second direction, ensuring that the second mesh cover 4 can be disassembled.

[0115] In one specific embodiment, the fourth inclined surface 4023 is provided on one side of the fourth snap-fit ​​portion 402.

[0116] In one specific embodiment, the fourth snap-fit ​​portion 402 has a first connecting surface 4021 and a first plane 4022, and the fifth snap-fit ​​portion 501 has a second connecting surface 5011 and a second plane 5012. When the second mesh cover 4 is installed in place, the first connecting surface 4021 and the second connecting surface 5011 cooperate to prevent the second mesh cover 4 from rotating in the second direction. When the wire cover 5 is pressed, the third inclined surface 509 and the fourth inclined surface 4023 cooperate to drive the second mesh cover 4 to rotate in the second direction. When the wire cover 5 is released and reset, the second plane 5012 contacts the first plane 4022.

[0117] In one embodiment, the fifth snap-fit ​​portion 501 has a second connecting surface 5011, and the third inclined surface 509 is disposed opposite to the second connecting surface 5011. After the second mesh cover 4 is installed in place, the fourth snap-fit ​​portion 402 is located in the gap between the third inclined surface 509 and the second connecting surface 5011.

[0118] In this embodiment, after the second mesh cover 4 is installed in place, the fourth snap-fit ​​part 402 is located in the gap between the third inclined surface 509 and the second connecting surface 5011, and the second mesh cover 4 will not rotate in the second direction.

[0119] In one embodiment, one of the fixing structure and the wire cover 5 is provided with a limiting hole 103, and the other is provided with a third limiting buckle 510, which is adapted to move axially within the limiting hole 103.

[0120] In this embodiment, one of the fixing structure and the wire cover 5 is provided with a limiting hole 103, and the other is a third limiting buckle 510. The third limiting buckle 510 is adapted to move axially within the limiting hole 103, which can ensure that the wire cover 5 will not leave the fixing structure, and the wire cover 5 does not need to be removed when the first mesh cover 3 and the second mesh cover 4 are removed.

[0121] Specifically, the fixing structure is provided with a limiting hole 103, and the wire cover 5 is provided with a third limiting buckle 510 at the corresponding position. Alternatively, the fixing structure is provided with a third limiting buckle 510, and the wire cover 5 is provided with a limiting hole 103 at the corresponding position. Alternatively, the fixing structure is provided with a limiting hole 103 and a third limiting buckle 510, the wire cover 5 is provided with a third limiting buckle 510 at the position corresponding to the limiting hole 103 of the fixing structure, and the wire cover 5 is provided with a limiting hole 103 at the position corresponding to the third limiting buckle 510 of the fixing structure.

[0122] In one specific embodiment, the fixing structure includes a housing 1 and an air duct 2. The housing 1 is provided with a limiting hole 103, and the wire cover 5 is provided with a third limiting buckle 510.

[0123] In one embodiment, the wire cover 5 has a horizontal portion 503 and a vertical portion 504. When the wire cover 5 is provided with a third limiting buckle 510, the third limiting buckle 510 is disposed on the horizontal portion 503 and / or the vertical portion 504.

[0124] In one specific embodiment, both the horizontal portion 503 and the vertical portion 504 are provided with two third limit buckles 510.

[0125] In one embodiment, the fixing structure further includes a housing 1, and the air duct 2 is fixed inside the housing 1.

[0126] In this embodiment, the fixing structure includes a housing 1 and an air duct 2, which facilitates the processing of the components.

[0127] In one embodiment, the air duct 2 is provided with a fixing buckle 204, and the outer shell 1 is provided with a snap-fit ​​part that engages with the fixing buckle 204.

[0128] In this embodiment, the air duct 2 is provided with a fixing buckle 204, and the outer shell 1 is provided with a snap-fit ​​part that engages with the fixing buckle 204. The air duct 2 and the outer shell 1 are snap-fitted together, and the assembly method of the two is simple and convenient.

[0129] The fan provided in this embodiment is installed as follows:

[0130] The spring is mounted on the mounting post 101 of the housing 1.

[0131] Install the wire cover 5 into the housing 1 from back to front. After installation, the four third limit buckles 510 of the wire cover 5 are located in the limit holes 103 of the housing 1. The mounting holes 505 of the wire cover 5 are fitted over the spring and compress the spring.

[0132] The air duct 2 is installed axially from front to back into the housing 1, and the fixing buckle 204 of the air duct 2 is engaged with the snap-fit ​​part of the housing 1.

[0133] Once the above components are installed, there is no need for the user to disassemble them.

[0134] Installation of the first mesh cover 3: First, place the first mesh cover 3 coaxially with the air duct 2, move the first mesh cover 3 backward along the axial direction, press the first mesh cover 3 into the air duct 2, the three second snap-fit ​​parts 304 of the first mesh cover 3 engage with the third snap-fit ​​part 202 of the air duct 2, and the unlocking snap 303 of the first mesh cover 3 engages with the first snap-fit ​​part 201, thus completing the installation of the first mesh cover 3.

[0135] Installation of the second mesh cover 4: First, place the second mesh cover 4 inside the outer shell 1, and then rotate the second mesh cover 4 in the first direction. The three axial stop locking parts 401 of the second mesh cover 4 engage with the three first fasteners 102 of the outer shell 1 to achieve axial limiting. At the same time, the second mesh cover 4 pushes the wire cover 5 forward during rotation. After the second mesh cover 4 is rotated into place, the wire cover 5 returns to its original position under the action of the spring. The fifth locking part 501 of the wire cover 5 cooperates with the fourth locking part 402 of the second mesh cover 4 to achieve rotational limiting of the second mesh cover 4, thus completing the installation of the second mesh cover 4.

[0136] Unlocking the first mesh cover 3: When the pressing mark 502 on the wire cover 5 is pressed, the wire cover 5 moves forward, and the second inclined surface 506 of the wire cover 5 contacts the first inclined surface 3031 of the unlocking spring 303 of the first mesh cover 3. The unlocking spring 303 deforms towards the center of the air duct 2, realizing axial limit unlocking; continue pressing the pressing mark 502 on the wire cover 5, and the second unlocking surface 507 of the wire cover 5 contacts the first unlocking surface 3032 of the unlocking spring 303, pushing out the unlocking spring 303. 03. When the unlocking snap 303 is pushed out, the first limiting snap 306 of the first mesh cover 3 and the second limiting snap 203 of the air duct 2 are limited. At this time, the wire cover 5 is released. After the wire cover 5 returns to its original position under the action of the spring, the first mesh cover 3 cannot spring back due to the action of the second limiting snap 203, exposing the snap handle position 305. The user can use his hand to forcefully pry the first mesh cover 3 from below, so that the second locking part 304 and the third locking part 202 are disengaged, thereby removing the first mesh cover 3.

[0137] The unlocking of the second mesh cover 4 is synchronized with the unlocking of the first mesh cover 3: When the pressing mark 502 on the wire cover 5 is pressed, the wire cover 5 moves forward, and the fifth locking part 501 of the wire cover 5 disengages from the fourth locking part 402 of the second mesh cover 4. At this time, the rotation limit of the second mesh cover 4 is unlocked. If the pressing mark 502 on the wire cover 5 is pressed again, the third inclined surface 509 of the wire cover 5 contacts the fourth inclined surface 4023 of the second mesh cover 4, pushing the second mesh cover 4 to rotate in the second direction. At this time, the wire cover 5 is released, and after the wire cover 5 returns to its original position under the action of the spring, since the second mesh cover 4 has rotated, the second plane 5012 of the fifth locking part 501 contacts the first plane 4022 of the fourth locking part 402, and the rotation limit of the second mesh cover 4 is released. The second mesh cover 4 can be rotated and removed.

[0138] It should be noted that in this embodiment, the side where the first mesh cover 3 is located is the front, and the side where the second mesh cover 4 is located is the rear. From front to back specifically refers to the direction from the side where the first mesh cover 3 is located to the side where the second mesh cover 4 is located.

[0139] According to an embodiment of the present invention, another aspect is provided: an air outlet device including the head assembly provided in the above embodiment.

[0140] In one embodiment, the air outlet device is a fan or a heater.

[0141] Although embodiments of the present 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 present 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 fixed structure includes an air duct (2), wherein a first snap-fit ​​part (201) is provided inside the air duct (2); The first mesh cover (3) is provided with an unlocking snap (303), which is engaged with the first snap-fit ​​part (201); The second mesh cover (4) is connected to the fixed structure; The wire cover (5) is movably disposed within the fixed structure. The wire cover (5) includes an unlocking part. When the wire cover (5) is pressed, the unlocking part pushes the unlocking snap (303) to disengage from the first latching part (201).

2. The head assembly according to claim 1, characterized in that, The unlocking spring clip (303) includes a first inclined surface (3031) and a first unlocking surface (3032), and the unlocking part includes a second inclined surface (506) and a second unlocking surface (507). When the wire cover (5) is pressed, the second inclined surface (506) contacts the first inclined surface (3031) to cause the unlocking spring clip (303) to retract radially, and the second unlocking surface (507) abuts against the first unlocking surface (3032) to push the unlocking spring clip (303) to axially disengage from the first latching part (201).

3. The head assembly according to claim 2, characterized in that, The first mesh cover (3) is provided with a second snap-fit ​​part (304), and the air duct (2) is provided with a third snap-fit ​​part (202). The second snap-fit ​​part (304) and the third snap-fit ​​part (202) are fastened together.

4. The head assembly according to claim 2, characterized in that, The first mesh cover (3) includes a first mesh cover body (301) and a first mesh cover flange (302). The first mesh cover flange (302) protrudes from the first mesh cover body (301) and is adapted to be embedded in the air duct (2). The first mesh cover flange (302) is provided with the unlocking snap (303). The first mesh cover body (301) is provided with a handle position (305). After the unlocking snap (303) disengages from the first snap-fit ​​part (201), the handle position (305) is located on the outside of the air duct (2).

5. The head assembly according to claim 4, characterized in that, The handle position (305) is located at a position where the first mesh cover body (301) and the unlocking spring buckle (303) are axially opposite each other.

6. The head assembly according to any one of claims 1 to 5, characterized in that, The unlocking spring clip (303) has a first limiting clip (306) on both sides, and the first locking part (201) has a second limiting clip (203) on both sides. After the unlocking spring clip (303) disengages from the first locking part (201), the first limiting clip (306) and the second limiting clip (203) engage.

7. The head assembly according to any one of claims 2 to 5, characterized in that, The fixing structure is provided with a first buckle (102), and the second mesh cover (4) is rotatably installed into the fixing structure along the first direction. The second mesh cover (4) is provided with an axial stop snap-fit ​​part (401) and a fourth snap-fit ​​part (402). The first buckle (102) and the axial stop snap-fit ​​part (401) cooperate to prevent the second mesh cover (4) from moving along the axial direction. The wire cover (5) includes a fifth snap-fit ​​part (501). After the second mesh cover (4) is installed in place, the fifth snap-fit ​​part (501) and the fourth snap-fit ​​part (402) cooperate to prevent the second mesh cover (4) from rotating in a second direction, which is opposite to the first direction.

8. The head assembly according to claim 7, characterized in that, The head assembly also includes an elastic element (6), the first end of which is limited to the fixed structure and the second end of which is limited to the wire cover (5). When the second mesh cover (4) is rotated and installed into the fixed structure in the first direction, it pushes the wire cover (5) to move to compress the elastic element (6). After the second mesh cover (4) is installed in place, the elastic force of the elastic element (6) drives the fifth snap-fit ​​part (501) to cooperate with the fourth snap-fit ​​part (402).

9. The head assembly according to claim 8, characterized in that, The wire cover (5) includes a mounting hole (505), and the second end of the elastic member (6) is disposed in the mounting hole (505).

10. The head assembly according to claim 7, characterized in that, The wire cover (5) has a third inclined surface (509), and the second mesh cover (4) has a fourth inclined surface (4023). When the wire cover (5) is pressed, the third inclined surface (509) and the fourth inclined surface (4023) cooperate to drive the second mesh cover (4) to rotate in the second direction.

11. The head assembly according to claim 10, characterized in that, The fifth snap-fit ​​part (501) has a second connecting surface (5011), and the third inclined surface (509) is disposed opposite to the second connecting surface (5011). After the second mesh cover (4) is installed in place, the fourth snap-fit ​​part (402) is located in the gap between the third inclined surface (509) and the second connecting surface (5011).

12. The head assembly according to any one of claims 2 to 5, 8 to 10, characterized in that, One of the fixing structure and the wire cover (5) is provided with a limiting hole (103), and the other is provided with a third limiting buckle (510), which is adapted to move axially within the limiting hole (103).

13. The head assembly according to claim 12, characterized in that, The wire cover (5) has a horizontal portion (503) and a vertical portion (504). When the wire cover (5) is provided with the third limiting buckle (510), the third limiting buckle (510) is disposed on the horizontal portion (503) and / or the vertical portion (504).

14. The head assembly according to claim 13, characterized in that, The front end of the horizontal part (503) is provided with two protrusions (508), the second inclined surface is provided on the protrusions (508), and the second unlocking surface (507) is located between the two protrusions (508).

15. The head assembly according to claim 14, characterized in that, In the vertical direction, the top of the second unlocking surface (507) is higher than the top of the protrusion (508).

16. The head assembly according to any one of claims 1 to 5, 8 to 10, and 13 to 15, characterized in that, The fixed structure also includes a housing (1), and the air duct (2) is fixed inside the housing (1).

17. The head assembly according to claim 16, characterized in that, The air duct (2) is provided with a fixing buckle (204), and the outer shell (1) is provided with a snap-fit ​​part that engages with the fixing buckle (204).

18. An air outlet device, characterized in that, Includes the nose assembly as described in any one of claims 1 to 17.

19. The air outlet device according to claim 18, characterized in that, The air outlet device is a fan or a heater.

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