Base assembly of fan and fan

Abstract

The utility model relates to the technical field of home appliance equipment discloses the base assembly and fan of fan, and the base assembly includes the bottom disc and the support column, is provided with the clamping structure and fixed structure on the bottom disc, is provided with the clamping cooperation structure and fixed cooperation structure on the support column, the bottom disc is rotated and is clamped to the fixed structure and fixed cooperation structure corresponding assembly position with the clamping structure and clamping cooperation structure and is connected fixed through the fastener. The bottom disc and the support column of the application are prepositioned through the mode of rotating and clamping, compared with the alignment positioning mode through the positioning column of the prior art, can reduce the alignment difficulty, and the bottom disc and the support column can also form the connection limit in the vertical direction, since the certain constraint is formed in the vertical direction because of the mutual clamping of both, therefore, the use quantity of fastener can be adaptively reduced, the assembly step is simplified, the assembly difficulty is reduced, and the assembly efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of home appliance technology, specifically to a fan base assembly and a fan. Background Technology

[0002] Currently, most fans on the market use multiple screws or complex snap-fit ​​structures to fix the support column and chassis, requiring multiple alignments and repeated tightening. The assembly process is cumbersome, time-consuming, and inefficient. Utility Model Content

[0003] In view of this, the present invention provides a fan base assembly and a fan to solve the problems of cumbersome operation steps, long time consumption and low efficiency in the assembly process of the fan support column and chassis in the prior art.

[0004] In a first aspect, this utility model provides a fan base assembly, comprising:

[0005] The chassis is equipped with a locking structure and a fixing structure;

[0006] The support column is located above the chassis, and the support column is equipped with a corresponding engaging structure and a fixing structure.

[0007] The chassis and support column are rotated and engaged to the corresponding assembly positions of the fixed structure and the fixed engagement structure through a snap-fit ​​structure and a snap-fit ​​mating structure, and then fixed by fasteners.

[0008] Beneficial Effects: During assembly, the chassis and support column are rotated and engaged to their corresponding assembly positions on the fixed and fixed mating structures via a snap-fit ​​mechanism. Fasteners then connect the fixed and fixed mating structures, thus securing the chassis and support column. The chassis and support column are pre-positioned using a rotational snap-fit ​​method, which, compared to existing methods using positioning pins, reduces alignment difficulty, saves manpower and time, and improves production efficiency. It effectively solves the problems of high alignment difficulty and inconvenient operation associated with existing positioning methods using positioning pins and holes. Furthermore, the chassis and support column also form a vertical connection limit. Because they are mutually engaged and create a certain constraint in the vertical direction, the number of fasteners can be adaptively reduced, simplifying assembly steps, lowering assembly difficulty, and improving assembly efficiency. In addition, the chassis and support column are locked and fixed using a combination of rotational snap-fit ​​and fasteners. Compared to single snap-fit, buckle, or snap-fit ​​+ buckle fixing methods, the fixation is more reliable and stable, the fan is less prone to shaking, and the overall stability of the machine is higher.

[0009] In one alternative implementation, the engagement structure includes:

[0010] The engaging part rotates and engages with the engaging and mating structure, and forms a limit in the vertical direction with the engaging and mating structure;

[0011] A stop is provided at one end of the engaging part. The stop is used to engage with the stop of the engaging structure to limit the chassis and support column in the assembly position where the fixed structure and the fixed engaging structure are facing each other.

[0012] Beneficial effects: During the rotation and engagement of the chassis and support column, the engaging parts and the engaging mating structure engage with each other, forming a constraint in the vertical direction, thus providing a pre-fixing effect. When adjusting the machine body angle or moving the support column upwards, movement is restricted, preventing or reducing the overall machine from shaking. Furthermore, when rotated to the correct position, the stop part engages with the stop of the engaging mating structure, limiting the chassis and support column to a position where the fixed structure and the fixed mating structure are directly opposite each other, thus providing positioning and enabling rapid alignment of the fixed structure and the fixed mating structure. This facilitates fastener connection, reduces alignment difficulty, and improves assembly efficiency. Moreover, the combination of engaging and mating structures, as well as fixed and fixed mating structures, improves the product's space utilization and stability.

[0013] In one alternative embodiment, the engaging portion includes engaging ribs fixedly disposed on the chassis;

[0014] The engaging structure includes an engaging groove located at the bottom of the support column;

[0015] The stop is located at the end of the locking rib, in the direction in which the locking rib is screwed into the locking groove.

[0016] Beneficial effects: The locking part and locking mechanism adopt the form of locking ribs and locking grooves, which is simple in structure and convenient for locking. Furthermore, the stop at the end of the locking ribs can be used to position the chassis and support column when they are rotated into place. After the machine head and support column are installed, the chassis is aligned with the support column and lowered, then rotated at a small angle until the stop is blocked by the locking mechanism, indicating it is in place. Finally, the locking device is used to secure it, completing the installation of the chassis and support column. The installation method is simple and efficient.

[0017] In one optional embodiment, the engaging structure further includes:

[0018] The engaging body is fixedly installed on the bottom wall of the support column. The engaging body is provided with an engaging groove, which is an open groove opened on the engaging body, and the opening of the open groove faces the outer periphery of the support column.

[0019] When the chassis and support column are rotated to the preset assembly position, the stop part of the engaging structure abuts against the side wall of the engaging body to form a positioning.

[0020] Beneficial effects: The engaging groove is an open groove with its opening facing the outer periphery of the support column. The engaging part enters from one side of the engaging groove and can form a limit with both the upper and lower groove walls when entering the engaging groove. Compared with the existing method of setting the engaging groove on the bottom wall of the support column or the top wall of the chassis, it is more convenient for the engaging part to be screwed into the engaging groove. On the other hand, the engaging part can form a limit with both the upper and lower groove walls of the engaging groove, further improving the stability of the cooperation between the support column and the chassis and reducing the shaking of the whole machine.

[0021] In one alternative implementation, the engaging body includes:

[0022] Multiple locking plates are arranged at intervals. Each locking plate has a locking edge located on the outer periphery of the support column. The locking groove includes multiple openings corresponding to the multiple locking edges.

[0023] The reinforcing plate is fixedly connected between multiple snap-fit ​​plates and support columns to increase the strength of the snap-fit ​​plates.

[0024] Beneficial effects: The locking body adopts a locking plate structure, which is easier to process and shape compared to a block shape, and also helps to reduce the weight of the entire machine. Furthermore, the multiple locking plates spaced apart and the corresponding slots improve the stability of the locking mechanism. In addition, the reinforcing plates placed between the locking plates and the support columns increase the strength of the locking plates, preventing them from bending and deforming under stress, further improving the locking effect.

[0025] In one alternative implementation, the engagement structure further includes:

[0026] A guide portion is provided at the end of the engaging portion away from the stop portion, and the guide portion includes an inclined surface that is inclined along the circumference of the chassis.

[0027] Beneficial effects: With the above-mentioned guide part, during rotation and engagement, the engagement part can slide more easily into the engagement groove under the guidance of the inclined surface of the guide part, improving smoothness and avoiding jamming or other unsmooth phenomena during the rotation and engagement of the chassis and support column, thus improving the user experience.

[0028] In one alternative embodiment, the fixing structure and the engaging structure are distributed circumferentially along the chassis, and the included angle between the fixing structure and the engaging structure is greater than 90 degrees.

[0029] Beneficial effects: Through the above-mentioned angle design, the engagement and fixing points of the chassis and support column are more dispersed, making the connection between the support column and chassis more reliable and stable, the overall stability of the machine is higher, and it is less prone to shaking. It effectively avoids the problem of poor balance stability and easy shaking caused by the engagement and fixing points being concentrated on one side of the machine.

[0030] In one alternative embodiment, the fixing structure has two sets, and the two sets of fixing structures are distributed on both sides of the engaging structure.

[0031] Beneficial effects: By placing two sets of fixing structures on both sides of the locking structure, the connection between the support column and the chassis is more stable compared to placing both sets of fixing structures on the same side of the locking structure. The two sets of fixing structures and the locking structure are arranged in a triangle on the chassis, which not only makes the chassis components more robust and reliable with higher stability, but also has higher stability and resistance to deformation, making it less prone to loosening or shaking due to external environment.

[0032] In one alternative embodiment, one of the fixing structure and the fixing fit structure includes a bolt post, the other includes a screw hole, and the fastener includes a screw.

[0033] Beneficial effects: The fixed structure and fixed mating structure adopt bolt columns and screw holes, and the fasteners adopt the structure of screws, so the connection is reliable and stable and not easy to loosen.

[0034] In one alternative embodiment, the chassis includes an annular chassis body, with support columns installed in the inner bore of the chassis body;

[0035] The fixed structure includes two connecting plates that are fixed at intervals to the inner periphery of the chassis body, and screw holes are provided on the two connecting plates respectively;

[0036] The fixed mating structure includes a bolt column protruding from the bottom wall of the support column, and the connecting plate includes a longitudinal plate and a horizontal plate arranged in an L-shape, with screw holes opened on the horizontal plate.

[0037] Beneficial effects: The L-shaped clearance design of the connecting plate provides clearance for the protruding bolt post, facilitating the connection and mating of the screw post with the screw hole on the connecting plate.

[0038] In one optional embodiment, the engaging structure is located on the inner periphery of the chassis body, and a reinforcing plate is provided between the two connecting plates and the chassis body, with the top surface of the reinforcing plate and the top surfaces of the two connecting plates on the same plane.

[0039] Beneficial effects: By installing a reinforcing plate between the two connecting plates and the chassis body, the structural strength of the two connecting plates can be increased, effectively preventing the connecting plates from bending and deforming under stress, which could lead to unstable connection between the support column and the chassis, and the machine being prone to shaking. Furthermore, the top surfaces of the connecting plates and the reinforcing plate are on the same plane, preventing the bolts at the bottom of the support column from getting stuck at the junction of the connecting plates and the reinforcing plate during chassis and support column rotation, thus ensuring smooth engagement.

[0040] Secondly, the present invention also provides a fan, including a base assembly of the fan according to any of the above embodiments and a fan head connected above the support column of the base assembly. Attached Figure Description

[0041] 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.

[0042] Figure 1 This is a schematic diagram of the fan structure in an embodiment of the present invention;

[0043] Figure 2 This is a schematic diagram of the support column in an embodiment of the present invention;

[0044] Figure 3 for Figure 2 Side view;

[0045] Figure 4 for Figure 2 A structural diagram from the bottom view;

[0046] Figure 5 This is a structural schematic diagram of the chassis from the top view in an embodiment of this utility model;

[0047] Figure 6 for Figure 5 Top view;

[0048] Figure 7 This is a schematic diagram of the structure with the bottom surface of the chassis facing upwards in an embodiment of this utility model;

[0049] Figure 8 for Figure 5 A bottom view;

[0050] Figure 9 This is a structural schematic diagram of the assembly process of the support column and the chassis in an embodiment of the present invention (view from the bottom of the fan);

[0051] Figure 10 This is a structural schematic diagram of the assembly process of the support column and the chassis in an embodiment of this utility model (another view of the bottom of the fan);

[0052] Figure 11 This is a cross-sectional view of the fan in an embodiment of this utility model;

[0053] Figure 12 for Figure 11 Enlarged view of point A.

[0054] Explanation of reference numerals in the attached figures:

[0055] 10. Support column; 101. Snap-fit ​​structure; 1010. Snap-fit ​​groove; 1011. Snap-fit ​​plate; 1012. Reinforcing plate; 102. Fixed fit structure; 103. Fitting step;

[0056] 20. Chassis; 201. Engaging structure; 2011. Engaging part; 2012. Stop part; 2013. Guide part; 202. Fixing structure; 2020. Screw hole; 2021. Connecting plate; 2022. Reinforcing plate; 2001. Placement and rotation space; 2002. Positioning and support space; 203. Positioning step;

[0057] 30. Machine head. Detailed Implementation

[0058] 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.

[0059] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing 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. Therefore, they should not be construed as limitations on 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.

[0060] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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 based on the specific circumstances.

[0061] 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.

[0062] Existing fan products typically use either a single-support-column structure or a single-support-column double-ear structure for the support column. Fans with a single-support-column structure generally use an integrated molding process where the support column and chassis are directly fixed together via injection molding. While this simplifies installation, it presents challenges such as difficult maintenance and large transport volume. Fans with a single-support-column double-ear structure use a Y-shaped support column, secured to the chassis with multiple screws or complex clips. This requires repeated alignment and tightening, making the operation time-consuming and with a low tolerance for error. Some fans use multiple screws for fixing, requiring initial positioning with locating pins. However, due to the small size of the alignment holes, which are easily blocked by the support column, alignment is difficult and operation inconvenient.

[0063] To reduce assembly difficulty, some fans fix the support column to the chassis directly by rotating and snapping. Since most of the weight of the whole machine is concentrated on the head, the support column and chassis are only fixed by snapping, clipping, or a combination of snapping and clipping. The fixation is not secure. When the fan is working, the head will cause the support column to shake, which will aggravate the failure of the connection structure between the support column and the chassis, affect the stability of the whole machine, and result in a poor user experience.

[0064] Therefore, in order to solve the above problems, this embodiment is proposed.

[0065] The following is combined Figures 1 to 12 The following describes embodiments of the present invention.

[0066] According to an embodiment of the present invention, in one aspect, the present invention provides a fan base assembly, including a chassis 20 and a support column 10. The support column 10 is disposed above the chassis 20, and the chassis 20 and the support column 10 are rotatably engaged to a preset assembly position and fixedly connected by fasteners. Specifically, the chassis 20 is provided with an engaging structure 201 and a fixing structure 202, and the support column 10 is correspondingly provided with an engaging mating structure 101 and a fixing mating structure 102; the chassis 20 and the support column 10 are rotatably engaged to the corresponding assembly positions of the fixing structures 202 and 102 through the engaging structure 201 and the engaging mating structure 101, and fixedly connected by fasteners.

[0067] In the above embodiment, during assembly, the chassis 20 and the support column 10 are rotated and engaged to the corresponding assembly positions of the fixed structure 202 and the fixed engagement structure 102 through the engaging structure 201 and the engaging mating structure 101. Then, the fixed structure 202 and the fixed engagement structure 102 are connected by fasteners, thereby fixing the chassis 20 and the support column 10. The chassis 20 and the support column 10 are pre-positioned by rotating engagement. Compared with the existing method of alignment and positioning by positioning pins, this method can reduce the difficulty of alignment, save manpower and time, and improve production efficiency. It effectively solves the problems of high alignment difficulty and inconvenient operation of the existing method of positioning by positioning pins and positioning holes. At the same time, the chassis 20 and the support column 10 can also form a connection limit in the vertical direction. Since the two are engaged with each other in the vertical direction to form a certain constraint, the number of fasteners used can be adaptively reduced, the assembly steps can be simplified, the assembly difficulty can be reduced, and the assembly efficiency can be improved. In addition, the chassis 20 and the support column 10 are locked and fixed by a combination of rotation and fasteners. Compared with a single locking, snap-fit, or locking and snap-fit ​​method, the fixation is more reliable and stable, the fan is less likely to shake, and the overall stability of the machine is higher.

[0068] In some embodiments, the engaging structure 201 includes an engaging portion 2011 and a stop portion 2012. The engaging portion 2011 is rotatably engaged with the engaging mating structure 101 and forms a limit with the engaging mating structure 101 in the vertical direction. The stop portion 2012 is disposed at one end of the engaging portion 2011 and is used to stop and engage with the engaging mating structure 101 to limit the chassis 20 and the support column 10 to the assembly position where the fixed structure 202 and the fixed mating structure 102 are directly opposite each other.

[0069] In the above embodiment, during the rotational engagement of the chassis 20 and the support column 10, the engaging part 2011 engages with the engaging structure 101, and the two form a constraint in the vertical direction, playing a pre-fixing role. When adjusting the machine body angle or moving the support column 10 upward, movement can be restricted, preventing or reducing the shaking of the entire machine. Moreover, when rotated to the correct position, the stop part 2012 can engage with the stop of the engaging structure 101 to limit the chassis 20 and the support column 10 to the position where the fixed structure 202 and the fixed engaging structure 102 are directly opposite each other, playing a positioning role. This enables the fixed structure 202 and the fixed engaging structure 102 to be quickly aligned, facilitating fastener connection, reducing alignment difficulty, and improving assembly efficiency. Furthermore, the combination of the engaging structure 201 and the engaging structure 101, and the fixed structure 202 and the fixed engaging structure 102, can improve the space utilization and stability of the product.

[0070] Specifically, the engaging part 2011 engages with the engaging mating structure 101, which includes an engaging groove 1010. The engaging part 2011 engages with the engaging groove 1010, and the two limit each other in the vertical direction. Along the rotation direction of the chassis 20, the stop part 2012 is fixedly disposed at the end of the engaging part 2011. When the chassis 20 and the support column 10 rotate into position, the stop part 2012 abuts against the engaging mating structure 101 to limit and position the chassis 20 and the support column 10, so that the fixing structure 202 and the fixing mating structure 102 can be aligned, which facilitates the connection of fasteners.

[0071] It should be noted that in this embodiment, the engaging part 2011 is not limited to engaging with the engaging structure 101. The engaging part 2011 and the engaging structure 101 can also engage with each other, or the engaging structure 101 can engage with the engaging part 2011. This embodiment does not limit this.

[0072] In some embodiments, the engaging portion 2011 includes an engaging rib fixedly disposed on the chassis 20; the engaging mating structure 101 includes an engaging groove 1010 disposed at the bottom of the support column 10; and a stop portion 2012 is disposed at the end of the engaging rib along the direction in which the engaging rib is screwed into the engaging groove 1010.

[0073] In the above embodiment, the engaging part 2011 and the engaging mating structure 101 adopt the form of engaging ribs and engaging grooves 1010, which is simple in structure and convenient for engaging. Furthermore, the stop part 2012 provided at the end of the engaging rib can be used for positioning when the chassis 20 and the support column are rotated into place. After the machine head 30 and the support column 10 are installed, the chassis 20 is aligned with the support column 10 and lowered, then rotated at a small angle until the stop part 2012 is blocked by the engaging mating structure 101, thus rotating into place. Finally, it is fixed by the locking device, thus completing the installation of the chassis 20 and the support column 10. The installation method is simple and efficient.

[0074] Specifically, the engaging rib is a strip-shaped rib, and along the rotation direction of the chassis 20 relative to the support column 10, a stop portion 2012 is fixedly disposed at the end of the strip-shaped engaging rib. The stop portion 2012 is a stop rib fixedly disposed on the engaging portion 2011, and there is an angle between the stop rib and the engaging portion 2011. Preferably, the stop portion 2012 and the engaging portion 2011 are arranged at 90 degrees, and the entire engaging structure 201 is L-shaped. The chassis 20 has an annular chassis body, and the lower end of the support column 10 is rotatably engaged in the inner hole of the chassis body. The inner circumference of the inner hole of the chassis body is provided with a positioning step 203, and the outer circumference of the lower end of the support column 10 is provided with a mating step 103, which is limited within the positioning step 203.

[0075] Furthermore, both the positioning step 203 and the mating step 103 are L-shaped. The positioning step 203 includes a first positioning surface arranged in the horizontal direction and a first limiting surface arranged in the vertical direction. The mating step 103 includes a second positioning surface arranged in the horizontal direction and a second limiting surface arranged in the vertical direction. When the support column 10 and the chassis 20 are assembled, the first limiting surface is located outside the second limiting surface, and the first positioning surface is located below the second positioning surface. During the assembly process, when the second positioning surface of the support column 10 is in complete contact with the first positioning surface of the chassis 20, the chassis 20 is rotated so that the locking structure 201 of the chassis 20 enters the locking and mating structure 101 of the support column 10 until the side of the locking and mating structure 101 of the support column 10 abuts against the stop part 2012 of the locking structure 201, indicating that it has been rotated into place. At this time, the chassis 20 and the support column 10 are connected and fixed by fasteners to fix the structure 202 and the mating structure 102. With the above-mentioned positioning step 203 and mating step 103, the support column 10 and the chassis 20 are positioned by the first positioning surface and the second positioning surface during assembly, ensuring that the engaging part 2011 can enter the engaging mating structure 101 and achieve precise docking between the engaging part 2011 and the engaging mating structure 101.

[0076] In some embodiments, such as Figures 2 to 4 , Figures 7 to 10 As shown, the engaging and mating structure 101 also includes an engaging body, which has an engaging groove 1010. The engaging body is fixedly mounted on the bottom wall of the support column 10. The engaging groove 1010 is an open groove opened on the engaging body, and the opening of the open groove faces the outer periphery of the support column 10. When the chassis 20 and the support column 10 are rotated to the preset assembly position, the stop part 2012 abuts against the side wall of the engaging body to form a positioning.

[0077] In the above embodiment, the engaging groove 1010 is an open groove with its opening facing the outer periphery of the support column 10. The engaging part 2011 enters from one side of the engaging groove 1010. When entering the engaging groove 1010, it can form a limit with both the upper and lower groove walls of the engaging groove 1010. Compared with the existing method of setting the engaging groove 1010 on the bottom wall of the support column 10 or the top wall of the chassis 20, it is more convenient for the engaging part 2011 to be screwed into the engaging groove 1010. On the other hand, the engaging part 2011 can form a limit with both the upper and lower groove walls of the engaging groove 1010, further improving the stability of the cooperation between the support column 10 and the chassis 20 and reducing the shaking of the whole machine.

[0078] Specifically, the engaging body can adopt a plate-like or block-like structure. The engaging body is fixed to the bottom wall of the support column 10, and the engaging body and the support column 10 are integrally formed. The engaging part 2011 enters the engaging groove 1010 from one end of the engaging body. When the chassis 20 and the support column 10 rotate into position, the side wall of that end of the engaging body abuts against the stop part 2012 to form a limit. At this time, the fixing structure 202 and the fixed mating structure 102 are aligned.

[0079] In some embodiments, the engaging body includes a plurality of engaging plates 1011, which are spaced apart. Each engaging plate 1011 has an engaging edge located on the outer periphery of the support column 10. The engaging groove 1010 includes a plurality of openings corresponding to the engaging edges. The engaging body also includes a reinforcing plate 1012, which is fixedly connected between the plurality of engaging plates 1011 and the support column 10 to increase the strength of the engaging plates 1011.

[0080] In the above embodiment, the engaging body adopts the structure of engaging plates 1011, which is easier to process and form than a block shape, and is also more conducive to reducing the weight of the whole machine. Furthermore, the multiple engaging plates 1011 arranged at intervals and the corresponding multiple openings and slots can improve the stability of engaging. In addition, the reinforcing plate 1012 arranged between the multiple engaging plates 1011 and the support column 10 can increase the strength of the engaging plates 1011, prevent the engaging plates 1011 from bending and deforming under stress, and further improve the engaging effect.

[0081] Specifically, such as Figure 2 and Figure 3 As shown, the locking plate 1011 is a square plate or a triangular plate. Preferably, in this embodiment, the locking plate 1011 is a triangular plate, as triangles offer higher stability. The locking plate 1011 also includes a fixed edge fixed to the bottom wall of the support column 10 and a connecting edge inclined between the fixed edge and the locking edge. A reinforcing plate 1012 connects the connecting edges of the multiple locking plates 1011 and the bottom wall of the support column 10. Preferably, the reinforcing plate 1012 is a strip plate, with its top wall connected to the multiple locking plates 1011 and its inner side connected to the bottom wall of the support column 10. During assembly, the locking part 2011 is screwed into the multiple opening slots of the multiple locking plates 1011 in sequence. When rotated into place, the stop part 2012 abuts against the side wall of the first locking plate 1011. In one example, there are three locking plates 1011, and the locking grooves 1010 include three openings that are correspondingly spaced on the three locking plates 1011.

[0082] In some embodiments, such as Figure 7As shown, the engaging structure 201 also includes a guide portion 2013, which is disposed at one end of the engaging portion 2011 away from the stop portion 2012. The guide portion 2013 includes an inclined surface that is inclined along the circumference of the chassis 20.

[0083] With the aforementioned guide portion 2013, during rotational engagement, the engagement portion 2011 can slide more easily into the engagement groove 1010 under the guidance of the inclined surface of the guide portion 2013, improving smoothness and avoiding any jerking or other unsmooth phenomena during the rotational engagement of the chassis 20 and the support column, thus enhancing the user experience.

[0084] Specifically, the guide portion 2013 and the stop portion 2012 are fixedly disposed at both ends of the engaging portion 2011. The guide portion 2013 is disposed at the front end of the engaging portion 2011, and the stop portion 2012 is disposed at the end of the engaging portion 2011. Along the direction in which the engaging portion 2011 is screwed into the engaging groove 1010, the vertical distance between the inclined surface of the guide portion 2013 and the chassis body gradually increases. By providing an inclined surface angle at the front end of the engaging portion 2011, it is easy for the engaging structure 201 to screw into the engaging groove 1010. When the support column 10 and the chassis 20 are rotated until the chassis 20 abuts against the stop portion 2012, they are rotated into place, and at this time, screws can be used to fix the support column 10 and the chassis 20.

[0085] In some embodiments, such as Figure 6 As shown, the fixing structure 202 and the engaging structure 201 are distributed circumferentially along the chassis 20, and the included angle α formed between the fixing structure 202 and the engaging structure 201 is greater than 90 degrees. Through the design of the above angle, the engaging points and fixing points of the chassis 20 and the support column 10 are more dispersed, making the connection between the support column 10 and the chassis 20 more reliable and stable, resulting in higher overall stability and less shaking. This effectively avoids the problem of poor overall balance stability and easy shaking caused by the engagement points and fixing points being concentrated on one side of the machine.

[0086] In some embodiments, the fixing structure 202 and the fixing engagement structure 102 are a set, and the included angle between the fixing structure 202 and the engaging structure 201 is between 145° and 180°. Preferably, when the fixing structure 202 is a set, the fixing structure 202 and the engaging structure 201 are approximately 180° apart, resulting in better overall balance and stability.

[0087] In some embodiments, the fixing structure 202 has two sets, and the two sets of fixing structures 202 are distributed on both sides of the engaging structure 201.

[0088] In the above embodiment, by setting the two sets of fixing structures 202 on both sides of the engaging structure 201, the connection between the support column and the chassis 20 is more stable than setting the two sets of fixing structures 202 on the same side of the engaging structure 201. The two sets of fixing structures 202 and the engaging structure 201 are arranged in a triangle on the chassis 20, which not only makes the chassis 20 components more robust and reliable with higher stability, but also has higher stability and resistance to deformation, and is less prone to loosening or shaking due to the external environment.

[0089] Preferably, the two sets of fixing structures 202 are symmetrically distributed relative to the engaging structure 201.

[0090] In some embodiments, one of the fixing structure 202 and the fixing mating structure 102 includes a bolt post, and the other includes a screw hole 2020, and the fastener includes a screw.

[0091] In the above embodiments, the fixing structure 202 and the fixing mating structure 102 are connected firmly and stably by using bolt posts and screw holes 2020, and the fasteners are screws, which are not easy to loosen.

[0092] Of course, in other alternative embodiments, fasteners can also be rivets, and the fixing structure 202 and the fixing mating structure 102 can be respectively adopted as the structure of rivet post and rivet hole.

[0093] In some embodiments, such as Figures 2 to 10 As shown, the chassis 20 includes an annular chassis body, and the support column 10 is installed in the inner hole of the chassis body; the fixing structure 202 includes two connecting plates 2021 fixed at intervals on the inner periphery of the chassis body, and the two connecting plates 2021 are respectively provided with screw holes 2020; the fixing and fitting structure 102 includes a bolt column protruding from the bottom wall of the support column 10, the connecting plate 2021 includes a longitudinal plate and a horizontal plate arranged in an L shape, the length of the longitudinal plate matches the protruding length of the bolt column, and the screw hole 2020 is opened on the horizontal plate.

[0094] In the above embodiment, the connecting plate 2021 is arranged in an L-shape to provide clearance space for the protruding bolt post, which facilitates the connection and cooperation between the screw post and the screw hole 2020 on the connecting plate 2021.

[0095] In some embodiments, the engaging structure 201 is disposed on the inner periphery of the chassis body, and a reinforcing plate 2022 is disposed between the two connecting plates 2021 and the chassis body. The reinforcing plate 2022 is connected between the two connecting plates 2021, and the top surfaces of the reinforcing plate 2022 and the two connecting plates 2021 are on the same plane.

[0096] In the above embodiment, the reinforcing plate 2022 provided between the two connecting plates 2021 and the chassis body can increase the structural strength of the two connecting plates 2021, effectively preventing the connecting plates 2021 from bending and deforming under stress, which would lead to unstable connection between the support column 10 and the chassis 20 and cause the whole machine to shake easily. Furthermore, the top surfaces of the connecting plates 2021 and the reinforcing plate 2022 are on the same plane, preventing the bolts at the bottom of the support column from getting stuck at the junction of the connecting plates 2021 and the reinforcing plate 2022 during the rotation of the chassis and support column, thus avoiding affecting the smoothness of engagement.

[0097] Furthermore, the reinforcing plate 2022 can form a larger clearance space with the two connecting plates 2021. This clearance space is a positioning and support space 2002 for placing the fixed mating structure 102. It can position and support the fixed mating structure 102 (i.e., bolt post), increase the placement area of ​​the bolt post, and improve assembly efficiency. In specific assembly, the bolt post is aligned with the top surface of the connecting plate 2021 and the reinforcing plate 2022. Then the support post 10 is lowered and rotated at a small angle until the engaging mating structure 101 is rotated into place and blocked by the stop part 2012 of the engaging structure 201. Then two screws are driven in to complete the installation of the chassis 20 and the support post 10. The installation method of the support post 10 and the chassis 20 adopts one alignment, one rotation, and two screws. The installation process is simple and efficient, which can reduce the use of screws and complex buckles and improve production efficiency.

[0098] Preferably, such as Figure 5 As shown, the reinforcing plate 2022 and the two connecting plates 2021 are integrally formed. The top surface of the reinforcing plate 2022 and the top surface of the two connecting plates 2021 are constructed as a flat surface. The reinforcing plate 2022 and the two connecting plates 2021 form a downwardly recessed positioning and support space 2002 for supporting the bolt column.

[0099] In some embodiments, such as Figures 5 to 10 As shown, the integral reinforcing plate 2022 and two connecting plates 2021 divide the inner hole of the chassis body into a first hollow area and a second hollow area. The first hollow area is located near the engaging structure 201 and is larger than the second hollow area. The first hollow area serves as a rotational space 2001 for the engaging structure 101. This design of the first hollow area facilitates the placement of the engaging structure 101 during the initial assembly phase, providing sufficient rotational space for it.

[0100] Preferably, in this embodiment, the central angle corresponding to the first hollow area is greater than 120°, and the central angle corresponding to the second hollow area is less than 90°.

[0101] In this embodiment, the support column 10 and the chassis 20 are installed using a simplified combination of "alignment, rotation, and screws". By using a combination of rotation and screws for fixation, not only is the space utilization and connection stability of the product improved, but the use of screws and complex clips is also reduced, thus improving production efficiency. In addition, it can effectively avoid the problems of existing support column 10 and chassis 20 being fixed by snapping, clipping, or a combination of snapping and clipping, which have high requirements for the shape of the support column 10. The support column 10 can only be made into a regular column shape or a symmetrical structure, which limits the product's appearance. Otherwise, it is easy for the connection between the support column 10 and the base to fail due to uneven stress. In this embodiment, the appearance of the support column 10 can be varied and can be set into any irregular shape, so that the fan has a unique style.

[0102] According to an embodiment of the present invention, in another aspect, a fan is provided, including a base assembly of the fan according to any of the above embodiments and a fan head 30 connected above a support column 10 of the base assembly. The fan head 30 is provided with a drive assembly and a fan blade assembly for generating airflow. The drive assembly is connected to the fan blade assembly and is used to drive the fan blade assembly to rotate and generate airflow.

[0103] Based on existing fan products, this application proposes a novel installation method for the support column 10 and the chassis 20. After the fan head 30 and the support column 10 are installed, the positioning support space 2002 of the chassis 20 (i.e., the L-shaped clearance space formed by the connecting plate 2021 and the reinforcing plate 2022) is aligned with the support column 10 and lowered. Then, a small-angle rotation is performed to rotate the engaging structure 101 until it is blocked by the stop part 2012 of the chassis 20, thus rotating it into place. Finally, two screws are driven in to complete the installation of the chassis 20. Specifically, the support column 10 and the chassis 20 are designed with mutually cooperating fixing structures 202 and fixing engagement structures 102, as well as engaging structures 201 and engaging engagement structures 101.

[0104] like Figure 5 and Figure 6 , Figure 11 and 12As shown, the chassis 20 has a first hollow area, which is the placement and rotation space 2001. The support column 10 has a locking and engaging structure 101. The placement and rotation space 2001 of the chassis 20 is aligned with the locking and engaging structure 101 of the support column 10. When the engaging step 103 of the support column 10 is fully engaged with the positioning step 203 of the chassis 20, the chassis 20 can be rotated. At this time, the locking structure 201 of the chassis 20 enters the locking and engaging structure 101 of the support column 10 until the side of the locking and engaging structure 101 abuts against the stop part 2012 of the locking structure 201. This means that the rotation is in place and screws can be used for fixing. In this embodiment, two screws are used for fixing. In addition to the pre-fixing function, the locking structure 201 and the locking and engaging structure 101 of the support column 10 and the chassis 20 can restrict movement when adjusting the body angle or moving the support column 10 upward, so as to prevent or reduce shaking. The present application provides an installation method for a single support column and chassis 20, which allows the support column 10 structure to be not limited to one-piece molding and double-ear structure, but has more different shapes and appearances, increasing the possibility of the overall appearance of the product. It can solve the problems of maintenance difficulties that may be caused by the one-piece molding of support column 10 and chassis 20 and the time-consuming operation of single support column double-ear structure, reduce the use of screws and complex buckle structures, and improve production efficiency.

[0105] 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 protection scope of the embodiments of this application.

Claims

1. A fan base assembly, characterized in that, include: The chassis (20) is provided with a locking structure (201) and a fixing structure (202); A support column (10) is provided above the chassis (20), and a locking structure (101) and a fixing structure (102) are provided on the support column (10); The chassis (20) and the support column (10) are rotated and engaged to the corresponding assembly positions of the fixed structure (202) and the fixed engagement structure (102) through the engaging structure (201) and engaging mating structure (101), and are fixed by fasteners.

2. The fan base assembly according to claim 1, characterized in that, The engaging structure (201) includes: The engaging part (2011) is rotatably engaged with the engaging structure (101) and forms a limit with the engaging structure (101) in the vertical direction; A stop (2012) is provided at one end of the engaging part (2011). The stop (2012) is used to engage with the engaging structure (101) to limit the chassis (20) and the support column (10) to the assembly position where the fixed structure (202) and the fixed engaging structure (102) are directly opposite each other.

3. The fan base assembly according to claim 2, characterized in that, The engaging part (2011) includes engaging ribs fixedly disposed on the chassis (20); The engaging structure (101) includes an engaging groove (1010) disposed at the bottom of the support column (10); The stop (2012) is provided at the end of the engaging rib in the direction of the engaging rib being screwed into the engaging groove (1010).

4. The base assembly of the fan according to any one of claims 1 to 3, characterized in that, The engaging and mating structure (101) further includes: The engaging body is fixedly installed on the bottom wall of the support column (10), and the engaging body is provided with an engaging groove (1010); The engaging groove (1010) is an opening groove formed on the engaging body, and the opening of the opening groove faces the outer periphery of the support column (10). When the chassis (20) and support column (10) are rotated to the preset assembly position, the stop (2012) of the engaging structure (201) abuts against the side wall of the engaging body to form a positioning.

5. The fan base assembly according to claim 4, characterized in that, The engaging body includes: Multiple locking plates (1011) are arranged at intervals. Each locking plate (1011) has a locking edge located on the outer periphery of the support column (10). The locking groove (1010) includes multiple openings corresponding to the multiple locking edges. A reinforcing plate (1012) is fixedly connected between multiple locking plates (1011) and the support column (10) to increase the strength of the locking plates (1011).

6. The fan base assembly according to claim 2 or 3, characterized in that, The engaging structure (201) further includes: A guide portion (2013) is provided at one end of the engaging portion (2011) away from the stop portion (2012), the guide portion (2013) including an inclined surface that is inclined along the circumference of the chassis (20).

7. The fan base assembly according to any one of claims 1 to 3, characterized in that, The fixing structure (202) and the engaging structure (201) are distributed circumferentially along the chassis (20), and the included angle between the fixing structure (202) and the engaging structure (201) is greater than 90 degrees. And / or, the fixing structure (202) has two sets, and the two sets of fixing structures (202) are distributed on both sides of the engaging structure (201); And / or, one of the fixing structure (202) and the fixing mating structure (102) includes a bolt post and the other includes a screw hole (2020), and the fastener includes a screw.

8. The base assembly of the fan according to any one of claims 1 to 3, characterized in that, The chassis (20) includes an annular chassis body, and the support column (10) is installed in the inner hole of the chassis body; The fixing structure (202) includes two connecting plates (2021) fixed at intervals to the inner periphery of the chassis body, and screw holes (2020) are provided on the two connecting plates (2021); The fixed mating structure (102) includes a bolt post protruding from the bottom wall of the support column (10), the connecting plate (2021) includes a longitudinal plate and a horizontal plate arranged in an L-shape, and the screw hole (2020) is opened on the horizontal plate.

9. The fan base assembly according to claim 8, characterized in that, The engaging structure (201) is located on the inner circumferential side of the chassis body; A reinforcing plate (2022) is provided between the two connecting plates (2021) and the chassis body, and the top surface of the reinforcing plate (2022) and the top surface of the two connecting plates (2021) are on the same plane.

10. A fan, characterized in that, The base assembly of the fan as described in any one of claims 1 to 9 and the head unit (30) connected above the support column (10) of the base assembly.

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