Fan grille and fan

Abstract

The application specifically relates to the technical field of household appliances, and particularly relates to a fan mesh cover and a fan. The fan mesh cover comprises a first mesh cover provided with at least one elastic arm at an inner edge; one end of the elastic arm is connected with the first mesh cover, and the other end of the elastic arm is a free end, and a buckle is arranged on the free end; and the second mesh cover comprises a mesh cover main body, and the mesh cover main body is sequentially provided with a buckle hole and a rib along a first rotation direction. In the embodiment, the elastic arm, the buckle and the buckle hole are matched, so that rotation fixing can be completed without screwing during rotation installation, and the operation process is simplified. When disassembling, the elastic arm is only needed to be poked to make the buckle separate from the buckle hole, and after the elastic arm contacts with the rib, the inclined part can drive the first mesh cover to reverse, so that the installation and disassembly of the mesh cover are faster and more convenient, and the problem that the mesh cover cannot be disassembled without a special tool is avoided. Meanwhile, the problem of thread damage caused by traditional screw fixing can be avoided, and the service life of the mesh cover is prolonged.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, specifically to a fan guard and a fan. Background Technology

[0002] In existing technologies, the front and rear grilles of a fan are typically fixed with screws to prevent the front grille from rotating or falling off during use. However, using screws for fixing is cumbersome and time-consuming. Furthermore, frequent removal and installation of screws makes the threaded structure of the front and rear fan grilles easily damaged, reducing the lifespan of the structure. Utility Model Content

[0003] In view of this, this application provides a fan guard and a fan to solve the technical problem that when the front and rear guards of a fan are fixed with screws, the operation is cumbersome and the threaded structure is easily damaged.

[0004] In a first aspect, this application provides a fan guard, the fan guard comprising: The first mesh cover has at least one spring arm on its inner edge; one end of the spring arm is connected to the first mesh cover, and the other end of the spring arm is a free end, and a buckle is provided on the free end; The second mesh cover includes a mesh cover body, the mesh cover body is provided with a locking hole and a rib in sequence along a first direction of rotation, the rib extends in a direction close to the central axis of the second mesh cover, at least a portion of the rib is inclined along a second direction of rotation, and at least a portion of the rib can be projected onto the locking hole along the radial center of the second mesh cover, the first direction of rotation is opposite to the second direction of rotation; The first mesh cover rotates in a first direction of rotation so that the buckle is inserted into the buckle hole.

[0005] Beneficial effects: This embodiment utilizes the cooperation of a spring arm, a buckle, and a locking hole. During rotational installation, the spring arm drives the buckle to insert into the locking hole the instant the buckle aligns with the locking hole, thus achieving fixation without the need for screws, simplifying the operation process. Disassembly only requires poking the spring arm to disengage the buckle from the locking hole. After the spring arm contacts the rib, the tilting part drives the first mesh cover to reverse. Reversing the first mesh cover then completes disassembly. Compared to existing screw-fixing methods, mesh cover installation and disassembly are faster and more convenient, avoiding the problem of not being able to disassemble or assemble without specific tools. It also avoids the thread damage caused by traditional screw fixing, extending the service life of the mesh cover.

[0006] In one alternative embodiment, the mesh cover body further includes: The guide groove and the card hole are arranged sequentially along the first direction of rotation.

[0007] Beneficial effects: Without guide grooves, the snap-fit ​​buckles are prone to misalignment and deviation from the snap-fit ​​hole direction, leading to installation jamming. This embodiment, by incorporating guide grooves, provides a precise sliding guide path for the snap-fit, improving positioning accuracy during installation, preventing installation jamming caused by snap-fit ​​misalignment, simplifying user operation and judgment, and reducing installation difficulty. Furthermore, it allows users to confirm the alignment of the first and second mesh covers by checking whether the snap-fit ​​abuts against the guide groove, eliminating the need for repeated adjustments, thus achieving precise positioning and reduced difficulty.

[0008] In one optional embodiment, the guide groove is provided with a guide slope on the side near the card hole, and the buckle is provided with an abutting slope. Both the abutting slope and the guide slope are inclined along the first rotation direction.

[0009] Beneficial effects: By setting a guide slope, this embodiment can reduce the hard friction between the buckle and the guide groove, making the mesh cover move more smoothly during installation and avoiding operation jamming or structural wear caused by excessive friction; it also reduces the force required during installation and improves the user's operating feel.

[0010] In one alternative embodiment, the second mesh cover further includes: A protrusion is disposed between the card hole and the guide slope; the protrusion protrudes toward the central axis of the second mesh cover.

[0011] Beneficial effects: By setting a protrusion, this embodiment can circumferentially limit the spring arm, preventing the spring arm from rotating along the second rotation direction on its own after assembly. Only when a tool is inserted into the locking hole and the spring arm is forcefully pushed can the free end of the spring arm disengage from the circumferential limit of the protrusion and rotate along the second rotation direction, thereby allowing the fan cover to be disassembled and assembled normally.

[0012] In one alternative implementation, the reinforcing bar includes: The extension section has one end connected to the main body of the mesh cover; The inclined portion has one end connected to the end of the extension portion away from the main body of the mesh cover, the other end of the inclined portion extends away from the extension portion, and the inclined portion is inclined along the second rotation direction; and at least a portion of the inclined portion can be projected onto the card hole by the central projection along the radial direction of the second mesh cover.

[0013] Beneficial effects: In this embodiment, the extension can mechanically limit the spring arm. When the buckle and the locking hole are aligned, the free end just abuts against the extension. At this time, the extension can prevent the spring arm from moving further, preventing it from becoming misaligned due to excessive force during disassembly and assembly. The inclined part can abut against the buckle during installation, allowing the buckle to slide to the extension under the guidance of the inclined part, and then slide into the locking hole, thus completing the installation. During disassembly, the user can use their finger or a stick-like object to insert into the locking hole from the outside and poke the buckle inward. When the buckle disengages from the locking hole, it can continue to slide along the inclined part, thereby reducing resistance and assisting in the quick disassembly of the buckle. Simultaneously, it can also cause the first and second mesh covers to rotate in opposite directions, facilitating disassembly by the user.

[0014] In one alternative implementation, the spring arm includes: The support section is connected to the inner edge of the first mesh cover; The cantilever section has one end connected to the support section and the other end being a free end.

[0015] Beneficial effects: In this embodiment, the support portion can fix the cantilever portion, preventing the overall structure from swaying and improving the overall structural strength of the spring arm. Simultaneously, the cantilever portion possesses a certain degree of elasticity, allowing the latches to be installed and removed under elastic action. This ensures that the latches always move along a preset trajectory during position switching, enhancing the overall deformation resistance of the spring arm and extending its service life.

[0016] In one alternative embodiment, the cantilever and the support are configured in a U-shape.

[0017] Beneficial effects: In this embodiment, the cantilever and support sections are constructed into a U-shaped structure. Because the U-shaped structure is a highly elastic recovery structure, it can store sufficient elastic potential energy when the cantilever bends. When the cantilever returns to its original position, the U-shaped structure provides a stable restoring force, ensuring that the buckle quickly engages in the locking hole. Simultaneously, the stress distribution of the U-shaped structure is more uniform. Compared to the traditional straight-arm structure, the U-shaped structure is less prone to fatigue after repeated bending, thus extending its service life, preventing loosening of the locking mechanism, and ensuring the connection stability of the mesh cover for long-term use.

[0018] In one alternative embodiment, the fan guard further includes: Turnout groove and turnout; One of the screw fastener groove and the screw fastener is located on the outer side wall of the first mesh cover, and the other of the screw fastener groove and the screw fastener is located on the inner side wall of the second mesh cover. The screw fastener and the screw fastener groove can be interlocked with each other. Alternatively, one of the screw-on groove and the screw-on buckle may be located on the inner side wall of the first mesh cover, and the other of the screw-on groove and the screw-on buckle may be located on the outer side wall of the second mesh cover, wherein the screw-on buckle and the screw-on groove may be interlocked.

[0019] Beneficial effects: In this embodiment, by providing a swivel buckle and a swivel buckle groove, the swivel buckle can be precisely inserted into the swivel buckle groove when the first and second mesh covers are aligned axially. Furthermore, after the first and second mesh covers rotate relative to each other, the swivel buckle gradually inserts into the swivel buckle groove. When the first and second mesh covers are fully installed using the snaps and holes, the swivel buckle is fully inserted into the swivel buckle groove. This prevents the first and second mesh covers from axially detaching due to vibration during use, significantly improving connection stability.

[0020] In one optional embodiment, there are at least two buckles and at least two buckle slots, and the buckle slots correspond one-to-one with the buckles and are evenly distributed on the first mesh cover and the second mesh cover.

[0021] Beneficial effects: This embodiment, by setting multiple buckles, can evenly distribute the axial force on the mesh cover, distributing the axial force to all points around the mesh cover and avoiding structural deformation or damage caused by localized force concentration. It also improves the stability of the fit between the buckle groove and the buckle, reducing the loosening of individual buckles due to uneven force. Furthermore, it can extend the overall service life of the mesh cover, ensuring consistent axial fixation over long-term use.

[0022] Secondly, this application provides a fan that includes a fan guard as described in any of the above embodiments. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the specific embodiments of this application or 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 application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram showing the first mesh cover and the second mesh cover being fastened and aligned in an embodiment of this application; Figure 2 for Figure 1 A magnified view of part A; Figure 3 This is a schematic diagram showing the interconnection between the first mesh cover and the second mesh cover in an embodiment of this application; Figure 4 for Figure 3 A magnified view of a section in part B; Figure 5 This is a schematic diagram of the structure of the second mesh cover in the embodiments of this application; Figure 6 for Figure 5 A magnified view of a section in part C; Figure 7 for Figure 5 A magnified view of part D; Figure 8 This is a schematic diagram of the structure of the first mesh cover in the embodiments of this application; Figure 9 for Figure 8 A magnified view of part E; Figure 10 for Figure 8 A magnified view of part F.

[0025] Explanation of reference numerals in the attached figures: 10. First mesh cover; 20. Second mesh cover; 21. Clip hole; 22. Guide groove; 23. Guide slope; 24. Protrusion; 25. Mesh cover body; 30. Spring arm; 31. Free end; 32. Buckle; 321. Abutting slope; 33. Support part; 34. Cantilever part; 40. Rib; 41. Extension; 42. Inclined section; 50. Turnbuckle; 60. Turnbuckle groove. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] In the description of this application, it should be noted that the terms "inner," "upper," "outer," "lower," "underneath," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "communication" should be interpreted broadly. For example, they can refer to fixed communication, detachable communication, or integral communication; they can refer to mechanical communication or electrical communication; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to communication within two components; and they can refer to wireless communication or wired communication. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] In existing technologies, the front and rear grilles of a fan are typically fixed with screws to prevent the front grille from rotating or falling off during use. However, this fixing method has several inconveniences. First, users need specialized tools such as screwdrivers to install or remove the front grille, making the process cumbersome and time-consuming. Second, without specialized tools, users often cannot complete the removal or installation of the front grille, affecting the user experience. Furthermore, frequent screw removal and installation can damage the threads, reducing the lifespan of the structure.

[0030] Therefore, there is an urgent need for a fan guard that can fix the front and rear guards to prevent rotation without screws, so as to improve the convenience of installation and disassembly and the user-friendliness of operation.

[0031] In view of this, this application provides a fan guard and a fan to solve the technical problem that the installation of fan guards in the prior art requires the use of installation tools.

[0032] The following is combined Figures 1 to 10 This describes an embodiment of the present application.

[0033] like Figures 1 to 10 As shown, according to an embodiment of this application, in one aspect, this application provides a fan guard, which includes a first guard 10 and a second guard 20.

[0034] Specifically, in this embodiment, the first mesh cover 10 is provided with at least one elastic arm 30 on its inner edge. The elastic arm 30 can extend from the inner edge of the first mesh cover 10, and one end of the elastic arm 30 is connected to the first mesh cover 10. The other end of the elastic arm 30 is a free end 31. After the free end 31 extends to a certain length, a buckle 32 is provided on the side of the end near the second mesh cover 20.

[0035] Of course, in this embodiment, the spring arm 30 needs to be made of a material with a certain degree of elasticity, such as resin, plastic, rubber, etc. This embodiment is merely an example of the material of the spring arm 30, but it is not a limitation. Those skilled in the art can make changes according to the actual situation, as long as the same technical effect can be achieved.

[0036] Further, in this embodiment, the second mesh cover 20 includes a mesh cover body 25. The mesh cover body 25 is provided with a locking hole 21 and a rib 40 in sequence along a first rotation direction. The rib 40 extends in a direction close to the central axis of the second mesh cover 20. At least a portion of the rib 40 is inclined along a second rotation direction, and the central projection of at least a portion of the rib 40 along the radial direction of the second mesh cover 20 can be projected onto the locking hole 21. The first rotation direction is opposite to the second rotation direction. The first rotation direction can be clockwise or counterclockwise. When the first rotation direction is clockwise, the second rotation direction is counterclockwise; when the first rotation direction is counterclockwise, the second rotation direction is clockwise.

[0037] Specifically, technicians or users need to first align the first mesh cover 10 and the second mesh cover 20 in their initial positions, with the buckle 32 abutting against the inner edge of the first mesh cover 10. Since the buckle 32 needs to be inserted into the locking hole 21, it needs to protrude from the outer surface of the first mesh cover 10. After the second mesh cover 20 is fastened onto the first mesh cover 10, as... Figure 2 As shown, the inner wall of the second mesh cover 20 contacts the outer side of the buckle 32, so that the second mesh cover 20 constrains the buckle 32 to the inside of the first mesh cover 10, thereby changing the position of the free end 31 and causing the spring arm 30 to bend inward.

[0038] After the first mesh cover 10 and the second mesh cover 20 are fastened and aligned in their initial positions, technicians or users can operate the first mesh cover 10 and the second mesh cover 20 to rotate relative to each other. When the first mesh cover 10 is the front mesh cover and the second mesh cover 20 is the rear mesh cover, since the rear mesh cover is usually connected to the machine body, technicians or users can operate the front mesh cover to rotate. As the first mesh cover 10 and the second mesh cover 20 continue to rotate, the buckle 32 and the locking hole 21 move closer to each other.

[0039] When the first mesh cover 10 and the second mesh cover 20 rotate to the moment when the buckle 32 aligns with the locking hole 21, the spring arm 30 returns to its original position under the action of elasticity, and drives the buckle 32 to insert into the locking hole 21, as shown. Figure 3 As shown, this allows the first mesh cover 10 and the second mesh cover 20 to be interconnected.

[0040] During disassembly, simply poke the spring arm 30 to disengage the buckle 32 from the locking hole 21. After the spring arm 30 contacts the rib 40, the inclined part 42 of the rib 40 can drive the first mesh cover 10 to reverse. Then, manually reverse the first mesh cover 10 to complete the disassembly.

[0041] With this configuration, in this embodiment, the spring arm 30, buckle 32, and locking hole 21 work together to ensure that during rotational installation, the snap fastener 32 aligns with the locking hole 21, causing the spring arm 30 to pull the buckle 32 into the locking hole 21 for fixation. Therefore, anti-rotation fixation can be achieved without screws, simplifying the operation. For disassembly, simply poke the spring arm 30 to disengage the buckle 32 from the locking hole 21. Then, manually reverse the first mesh cover 10 to complete disassembly. Therefore, compared to existing screw-fixing solutions, the installation and disassembly of the front mesh is quicker and more convenient, avoiding the problem of not being able to disassemble without specific tools, thus improving user convenience. It also avoids the thread damage caused by traditional screw fixing, extending the service life of the mesh cover.

[0042] Furthermore, in an optional embodiment, the mesh cover body 25 further includes a guide groove 22. Along the first rotation direction, the guide groove 22 and the snap hole 21 are sequentially provided on the mesh cover body 25. The guide groove 22 can accommodate the snap fastener 32, such that after the second mesh cover 20 is fastened onto the first mesh cover 10, the snap fastener 32 is accommodated in the guide groove 22 and abuts against it. Because the snap fastener 32 does not fully extend out of the first mesh cover 10, the free end 31 is positioned slightly closer to the inside, causing the spring arm 30 to be in a bent state.

[0043] When technicians or users rotate the first mesh cover 10 and the second mesh cover 20 relative to each other, the buckle 32 slides within the guide groove 22, causing the buckle 32 to approach the locking hole 21. At the instant the first mesh cover 10 and the second mesh cover 20 rotate until the buckle 32 slides out of the guide groove 22 and aligns with the locking hole 21, the spring arm 30 returns to its original position under the action of elasticity, and drives the buckle 32 to insert into the locking hole 21, thereby connecting the first mesh cover 10 and the second mesh cover 20.

[0044] With this configuration, without the guide groove 22, the buckle 32 is prone to misalignment and deviation from the direction of the locking hole 21, leading to installation jamming. However, this embodiment, by providing the guide groove 22, offers a precise sliding guide path for the buckle 32, improving positioning accuracy during installation, preventing installation jamming caused by buckle 32 misalignment, simplifying user operation and reducing installation difficulty. Simultaneously, it allows users to confirm the alignment of the first mesh cover 10 and the second mesh cover 20 by checking whether the buckle 32 abuts against the guide groove 22, eliminating the need for repeated adjustments, thus achieving precise positioning and reduced difficulty.

[0045] Furthermore, in an optional embodiment, the guide groove 22 is provided with a guide slope 23 on the side near the card hole 21, and the buckle 32 is provided with an abutting slope 321. Both the abutting slope 321 and the guide slope 23 are inclined along the first rotation direction.

[0046] When technicians or users rotate the first mesh cover 10 and the second mesh cover 20 relative to each other, the buckle 32 slides within the guide groove 22 and abuts against the inclined surface 321 and the guide inclined surface 23, allowing the buckle 32 to smoothly slide out of the guide groove 22 through the guide inclined surface 23. At the instant the buckle 32 aligns with the locking hole 21, the spring arm 30 returns to its original position under the action of elasticity, driving the buckle 32 to insert into the locking hole 21, thereby connecting the first mesh cover 10 and the second mesh cover 20.

[0047] With this configuration, this embodiment can reduce the hard friction between the buckle 32 and the guide groove 22 by setting the guide slope 23, making the mesh cover move more smoothly during installation and avoiding operation jamming or structural wear caused by excessive friction; reducing the force required during installation and improving the user's operating feel.

[0048] Furthermore, in an optional embodiment, the second mesh cover 20 further includes a protrusion 24 disposed between the slot 21 and the guide slope 23, the protrusion 24 protruding toward the central axis of the second mesh cover 20. Additionally, one side of the guide slope 23 is connected to the guide groove 22, and the other side of the guide slope 23 is connected to the protrusion 24.

[0049] With this configuration, the protrusion 24 in this embodiment can circumferentially limit the spring arm 30, preventing the spring arm 30 from rotating along the second rotation direction on its own after assembly. Only when a tool is inserted into the locking hole 21 and the spring arm 30 is forcefully pushed can the free end 31 of the spring arm 30 disengage from the circumferential limit of the protrusion 24 and rotate along the second rotation direction, thereby allowing the fan grille to be properly disassembled and assembled.

[0050] Furthermore, in an alternative implementation, such as Figure 2 , Figure 4 , Figure 7 As shown, the rib 40 includes an extension 41 and an inclined portion 42.

[0051] Specifically, in this embodiment, one end of the extension 41 is connected to the mesh cover body 25. One end of the inclined portion 42 is connected to the end of the extension 41 away from the mesh cover body 25, and the other end of the inclined portion 42 extends away from the extension 41, and the inclined portion 42 is inclined along the second rotation direction; and at least a portion of the inclined portion 42 can be projected onto the card hole 21 by the central projection of the radial direction of the second mesh cover 20.

[0052] In this configuration, the extension 41 can mechanically limit the spring arm 30. When the buckle 32 is aligned with the locking hole 21, the end of the free end 31 just abuts against the extension 41. At this time, the extension 41 can prevent the spring arm 30 from moving further, preventing it from becoming misaligned due to excessive force during disassembly and assembly. The inclined part 42 can abut against the buckle 32 during installation, allowing the buckle 32 to slide into the extension 41 under the guidance of the inclined part 42, and then slide into the locking hole 21, thus completing the installation. During disassembly, the user can use a finger or a stick-like object to insert into the locking hole 21 from the outside and poke the buckle 32 inward. When the buckle 32 disengages from the locking hole 21, it can continue to slide along the inclined part 42, thereby reducing resistance and assisting the buckle 32 to quickly disengage. At the same time, it can also drive the first mesh cover 10 and the second mesh cover 20 to rotate in opposite directions, making it easier for the user to disassemble.

[0053] Furthermore, in an alternative implementation, such as Figure 2 , Figure 4 , Figure 10 As shown, the spring arm 30 includes a support portion 33 and a cantilever portion 34.

[0054] Specifically, in this embodiment, the support portion 33 is connected to the inner edge of the first mesh cover 10, one end of the cantilever portion 34 is connected to the support portion 33, and the other end of the cantilever portion 34 is the free end 31.

[0055] During actual installation, technicians or users need to first align the first mesh cover 10 and the second mesh cover 20 in their initial positions, with the buckle 32 abutting against the inner edge of the first mesh cover 10. After the second mesh cover 20 is fastened onto the first mesh cover 10, the buckle 32 is inserted into the guide groove 22, thereby changing the position of the free end 31 and causing the cantilever portion 34 to bend.

[0056] After the first mesh cover 10 and the second mesh cover 20 are engaged and aligned in their initial positions, a technician or user can operate the first mesh cover 10 and the second mesh cover 20 to rotate relative to each other. After sliding out of the guide groove 22 and reaching the guide ramp 23, the end of the guide ramp 23 is inside the second mesh cover 20, which causes the cantilever portion 34 to bend further.

[0057] When the first mesh cover 10 and the second mesh cover 20 rotate to the moment when the buckle 32 aligns with the hole 21, the cantilever 34 returns to its original position under the action of elasticity, and drives the buckle 32 to be inserted into the hole 21, thereby connecting the first mesh cover 10 and the second mesh cover 20 to each other.

[0058] With this configuration, in this embodiment, the support portion 33 can fix the cantilever portion 34, preventing the overall structure from swaying and improving the overall structural strength of the spring arm 30. Simultaneously, the cantilever portion 34 possesses a certain degree of elasticity, allowing the latch 32 to be installed and removed under elastic action. This ensures that the latch 32 always moves along a preset trajectory during position switching, enhancing the overall deformation resistance of the spring arm 30 and extending its service life.

[0059] Furthermore, in an alternative implementation, such as Figure 2 , Figure 4 , Figure 7 As shown, the cantilever portion 34 and the support portion 33 are constructed into a U-shaped structure.

[0060] In this configuration, the cantilever portion 34 and the support portion 33 are constructed into a U-shaped structure. Since the U-shaped structure is a highly elastic recovery structure, it can store sufficient elastic potential energy when the cantilever portion 34 bends, and provide a stable restoring force when the cantilever portion 34 returns to its original position, ensuring that the buckle 32 quickly engages with the locking hole 21. Simultaneously, the stress distribution of the U-shaped structure is more uniform. Compared to the traditional straight-arm structure, the U-shaped structure is less prone to fatigue after repeated bending, thereby extending its service life, preventing loosening of the locking mechanism, and ensuring the connection stability of the mesh cover during long-term use.

[0061] Furthermore, in an alternative implementation, such as Figure 6 , Figure 9 As shown, the fan guard also includes screw clips 50 and screw clip slots 60. The number and position of the screw clips 50 and screw clip slots 60 are all set in a one-to-one correspondence.

[0062] Specifically, in this embodiment, one of the screw fastener groove 60 and the screw fastener 50 is provided on the outer side wall of the first mesh cover 10, and the other of the screw fastener groove 60 and the screw fastener 50 is provided on the inner side wall of the second mesh cover 20. The screw fastener 50 and the screw fastener groove 60 can be snapped together. Alternatively, one of the screw-on groove 60 and the screw-on buckle 50 may be located on the inner side wall of the first mesh cover 10, and the other of the screw-on groove 60 and the screw-on buckle 50 may be located on the outer side wall of the second mesh cover 20, wherein the screw-on buckle 50 and the screw-on groove 60 may be interlocked.

[0063] Of course, this embodiment is merely an example of the setting positions of the screw fastener 50 and the screw fastener slot 60, but it does not limit the scope of the embodiment. Those skilled in the art can make changes according to the actual situation, as long as the same technical effect can be achieved.

[0064] During the actual installation process, technicians or users need to first fasten and align the first mesh cover 10 and the second mesh cover 20 in the initial position. At this time, the swivel buckle 50 can be inserted into the swivel buckle groove 60.

[0065] After the first mesh cover 10 and the second mesh cover 20 are fastened and aligned in their initial positions, a technician or user can operate the first mesh cover 10 and the second mesh cover 20 to rotate relative to each other. During the rotation, the buckle 50 is gradually inserted into the buckle groove 60.

[0066] When the first mesh cover 10 and the second mesh cover 20 rotate to the moment when the buckle 32 aligns with the buckle hole 21, the buckle 32 is inserted into the buckle hole 21, and at this time the swivel buckle 50 is also fully inserted into the swivel buckle groove 60.

[0067] In this embodiment, by setting up the swivel buckle 50 and the swivel buckle groove 60, the swivel buckle 50 can be precisely inserted into the swivel buckle groove 60 when the first mesh cover 10 and the second mesh cover 20 are aligned axially. Furthermore, after the first mesh cover 10 and the second mesh cover 20 rotate relative to each other, the swivel buckle 50 gradually inserts into the swivel buckle groove 60. When the first mesh cover 10 and the second mesh cover 20 are fully installed using the snap fastener 32 and the snap hole 21, the swivel buckle 50 is fully inserted into the swivel buckle groove 60. This prevents the first mesh cover 10 and the second mesh cover 20 from axially dislodging due to vibration during use, significantly improving connection stability.

[0068] Furthermore, in an optional embodiment, there are at least two swivel buckles 50 and at least two swivel buckle grooves 60, and the swivel buckle grooves 60 correspond one-to-one with the swivel buckles 50 and are evenly distributed on the first mesh cover 10 and the second mesh cover 20.

[0069] Of course, the buckles 50 can be uniformly arranged only on the inner circumference of the first mesh cover 10, or the buckle grooves 60 can be uniformly arranged only on the inner circumference of the second mesh cover 20. This embodiment is only an example, but it does not limit the scope of the invention. Those skilled in the art can make changes according to the actual situation, as long as the same technical effect can be achieved.

[0070] This configuration, through the use of multiple buckles 50, ensures a uniform axial force distribution on the mesh cover, distributing the axial force to all points around the mesh cover and preventing structural deformation or damage caused by concentrated local forces. It also improves the stability of the fit between the buckle groove 60 and the buckle 50, reducing the likelihood of individual buckles 50 loosening due to uneven force distribution. Furthermore, it extends the overall service life of the mesh cover, ensuring consistent axial fixation over long-term use.

[0071] Secondly, this application provides a fan that includes a fan guard as described in any of the above embodiments.

[0072] Although embodiments of this application 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 this application, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A fan guard, characterized in that, include: The first mesh cover (10) has at least one spring arm (30) on its inner edge; one end of the spring arm (30) is connected to the first mesh cover (10), and the other end of the spring arm (30) is a free end (31), and a buckle (32) is provided on the free end (31). The second mesh cover (20) includes a mesh cover body (25). The mesh cover body (25) is provided with a locking hole (21) and a rib (40) in sequence along a first direction of rotation. The rib (40) extends in a direction close to the central axis of the second mesh cover (20). At least a portion of the rib (40) is inclined along a second direction of rotation, and at least a portion of the rib (40) can be projected onto the locking hole (21) by the central projection of the radial direction of the second mesh cover (20). The first direction of rotation is opposite to the second direction of rotation. The first mesh cover (10) rotates in the first direction of rotation so that the buckle (32) is inserted into the buckle hole (21).

2. The fan guard according to claim 1, characterized in that, The main body of the mesh cover (25) also includes: The guide groove (22) and the card hole (21) are arranged sequentially along the first rotation direction.

3. The fan guard according to claim 2, characterized in that, The guide groove (22) has a guide slope (23) on the side near the card hole (21), and the buckle (32) has an abutting slope (321). Both the abutting slope (321) and the guide slope (23) are inclined along the first rotation direction.

4. The fan guard according to claim 3, characterized in that, The second mesh cover (20) also includes: A protrusion (24) is provided between the card hole (21) and the guide slope (23); the protrusion (24) protrudes toward the central axis of the second mesh cover (20).

5. The fan guard according to any one of claims 1 to 4, characterized in that, The reinforcing bar (40) includes: An extension (41) is provided, one end of which is connected to the main body (25) of the mesh cover. An inclined portion (42) is provided, one end of which is connected to the end of the extension portion (41) away from the main body of the mesh cover (25), the other end of which extends away from the extension portion (41), and the inclined portion (42) is inclined along the second direction of rotation; and at least a portion of the inclined portion (42) can be projected onto the card hole (21) along the radial center projection of the second mesh cover (20).

6. The fan guard according to any one of claims 1 to 4, characterized in that, The spring arm (30) includes: The support part (33) is connected to the inner edge of the first mesh cover (10); The cantilever (34) has one end connected to the support (33) and the other end of the cantilever (34) is the free end (31).

7. The fan guard according to claim 6, characterized in that, The cantilever (34) and the support (33) are configured in a U-shape.

8. The fan guard according to any one of claims 2 to 4, characterized in that, The fan guard also includes a screw groove (60) and a screw (50); One of the screw fastener groove (60) and the screw fastener (50) is provided on the outer side wall of the first mesh cover (10), and the other of the screw fastener groove (60) and the screw fastener (50) is provided on the inner side wall of the second mesh cover (20). The screw fastener (50) and the screw fastener groove (60) can be engaged with each other. Alternatively, one of the screw-on groove (60) and the screw (50) is located on the inner side wall of the first mesh cover (10), and the other of the screw-on groove (60) and the screw (50) is located on the outer side wall of the second mesh cover (20). The screw (50) and the screw-on groove (60) can be interlocked.

9. The fan guard according to claim 8, characterized in that, There are at least two swivel buckles (50) and at least two swivel buckle grooves (60), and the swivel buckle grooves (60) correspond one-to-one with the swivel buckles (50) and are evenly distributed on the first mesh cover (10) and the second mesh cover (20).

10. A fan, characterized in that, include: The fan guard as described in any one of claims 1 to 9.

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