Base assembly of fan and fan

Abstract

The invention relates to the technical field of household appliances, and discloses a base assembly of a fan and the fan, the base assembly comprises a chassis and a supporting column, a clamping structure and a fixing structure are arranged on the chassis, and a clamping matching structure and a fixing matching structure are arranged on the supporting column; the base plate and the supporting column are rotationally clamped to the corresponding assembling positions of the fixing structure and the fixed matching structure through the clamping structure and the clamping matching structure and are fixedly connected through a fastener. The base plate and the supporting column are pre-positioned in a rotary clamping mode, compared with an existing alignment positioning mode through a positioning column, the alignment difficulty can be reduced, meanwhile, the base plate and the supporting column can form connection limiting in the vertical direction, and due to the fact that the base plate and the supporting column are mutually clamped to form certain constraint in the vertical direction, the positioning accuracy is improved. The use number of fasteners can be adaptively reduced, the assembly steps are simplified, the assembly difficulty is reduced, and the assembly efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of household electrical appliances, and in particular to a base assembly of a fan and a fan. Background Art

[0002] Currently, fans on the market mostly use multiple screws or complex snap-on structures to fix their support columns and chassis, which require multiple alignments and repeated tightening. The assembly process is cumbersome, time-consuming, and inefficient. Summary of the Invention

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

[0004] In a first aspect, the present invention provides a base assembly for a fan, comprising:

[0005] A chassis is provided with a snap-fit structure and a fixing structure;

[0006] A support column is provided above the chassis, and a snap-fit structure and a fixed fit structure are provided on the support column;

[0007] The chassis and the support column are rotatably engaged with each other through the engaging structure and the engaging matching structure to the assembly positions corresponding to the fixing structure and the fixing matching structure and are connected and fixed by fasteners.

[0008] Beneficial effect: During assembly, the chassis and the support column are rotated and engaged to the assembly positions corresponding to the fixed structure and the fixed matching structure through the snap-fit structure and the snap-fit structure, and then the fixed structure and the fixed matching structure are connected by fasteners, thereby achieving the fixation of the chassis and the support column. The chassis and the support column are pre-positioned by adopting a rotational snap-fit method. Compared with the existing method of alignment and positioning by positioning columns, it can reduce the difficulty of alignment, save manpower and time, and improve production efficiency. It effectively solves the problem of the existing method of positioning by positioning columns and positioning holes, which is difficult to align and inconvenient to operate. At the same time, the chassis and the support column can also form a connection limit in the vertical direction. Since the two are engaged with each other to form a certain constraint in the vertical direction, 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 and the support column are locked and fixed by adopting a rotational snap-fit + fastener method. Compared with a single snap-fit, or snap-fit, or snap-fit + snap-fit fixing method, the fixation is more secure and stable, the fan is not easy to shake, and the stability of the whole machine is higher.

[0009] In an optional embodiment, the engaging structure includes:

[0010] The engaging portion is rotatably engaged with the engaging structure and forms a limit in the vertical direction with the engaging structure;

[0011] The stop portion is provided at one end of the engaging portion, and is used to cooperate with the engaging matching structure to limit the chassis and the support column to an assembly position where the fixed structure and the fixed matching structure face each other.

[0012] Beneficial Effects: During the rotational engagement of the chassis and support column, the engaging portion and the engaging structure engage with each other, forming a vertical constraint that acts as a pre-fixation. When adjusting the body angle or moving the support column upward, movement can be restricted, preventing or reducing shaking of the entire device. Furthermore, when fully rotated, the stopper engages with the engaging structure's stop to limit the chassis and support column to a position where the fixed structure and the fixed matching structure face each other, thus providing a positioning function and enabling rapid alignment of the fixed structure and the fixed matching structure, facilitating fastener connection, reducing alignment difficulty, and improving assembly efficiency. Furthermore, the combination of the engaging structure and the engaging structure, and the fixed structure and the fixed matching structure, can improve the product's space utilization and stability.

[0013] In an optional embodiment, the engaging portion includes an engaging rib fixedly disposed on the chassis;

[0014] The snap-fit structure includes a snap-fit groove provided at the bottom of the support column;

[0015] Along the direction in which the locking rib is screwed into the locking groove, the stop portion is arranged at the end of the locking rib.

[0016] Beneficial Effects: The engaging portion and engaging structure adopt the form of engaging ribs and engaging grooves, which are simple in structure and convenient for engaging. Furthermore, the stopper provided at the end of the engaging rib can be used to position the chassis and support column when they are rotated into position. After the machine head and support column are installed, the chassis is aligned with the support column and lowered, then rotated a small angle until the stopper is stopped by the engaging structure, that is, rotated into position, and then secured with a locking member. This completes the installation of the chassis and support column. The installation method is simple and efficient.

[0017] In an optional embodiment, the snap-fit structure further includes:

[0018] The clamping body is fixedly arranged on the bottom wall of the support column, and the clamping body is provided with a clamping groove, which is an open groove opened on the clamping body, and the opening of the open groove faces the outer peripheral side of the support column;

[0019] When the chassis and the support column are rotated to a preset assembly position, the stop portion 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 peripheral side of the support column. The engaging part enters from one side of the engaging groove. When entering the engaging groove, it can form a limit with the upper and lower groove walls of 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, on the one hand, 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 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 an optional embodiment, the engaging body includes:

[0022] A plurality of engaging plates are arranged at intervals, each of the engaging plates having engaging edges, the engaging edges being located on the outer periphery of the support column, and the engaging grooves comprising a plurality of opening grooves correspondingly provided on the plurality of engaging edges;

[0023] The reinforcing plate is fixedly connected between the plurality of clamping plates and the supporting columns to increase the strength of the clamping plates.

[0024] Beneficial Effects: The main body of the clamp adopts a clamping plate structure, which is easier to process and shape than a block structure, and also helps to reduce the weight of the entire device. The multiple clamping plates are arranged at intervals and the corresponding multiple openings are designed to improve the stability of the clamping. In addition, the reinforcement plates provided between the multiple clamping plates and the support columns can increase the strength of the clamping plates, prevent the clamping plates from bending and deformation under stress, and further improve the clamping effect.

[0025] In an optional embodiment, the engaging structure further includes:

[0026] The guide portion is arranged at one end of the engaging portion away from the stop portion, and the guide portion comprises an inclined surface inclined along the circumference of the chassis.

[0027] Beneficial effect: Through the setting of the above-mentioned guide part, when rotating and engaging, the engaging part can slide into the engaging groove more easily under the guidance of the inclined surface of the guide part, thereby improving the smoothness, avoiding the occurrence of jamming and other unsmooth phenomena during the rotation and engagement of the chassis and the support column, and improving the user experience.

[0028] In an optional embodiment, the fixing structure and the engaging structure are spaced apart along the circumference of the chassis, and an angle formed between the fixing structure and the engaging structure is greater than 90 degrees.

[0029] Beneficial effect: Through the design of the above angles, the engaging points and fixing points between the chassis and the support column are more dispersed, making the connection between the support column and the chassis more secure and stable, the stability of the entire machine higher, and less prone to shaking, effectively avoiding the engaging points and fixing points being concentrated on one side of the entire machine, resulting in poor balance and stability of the entire machine and easy shaking.

[0030] In an optional embodiment, there are two groups of fixing structures, and the two groups of fixing structures are distributed on both sides of the locking structure.

[0031] Advantages: By placing two sets of fixing structures on either side of the snap-fit structure, the connection between the support column and the chassis is more stable than if both sets of fixing structures were placed on the same side of the snap-fit structure. The two sets of fixing structures and the snap-fit structure are arranged in a triangular pattern on the chassis, making the chassis assembly more secure and reliable, and providing greater stability and resistance to deformation, making it less likely to become loose or shaken due to external factors.

[0032] In an optional embodiment, one of the fixing structure and the fixing matching structure includes a bolt column, the other includes a screw hole, and the fastener includes a screw.

[0033] Beneficial effects: The fixing structure and the fixing matching structure adopt bolt columns and screw holes, and the fasteners adopt the structural form of screws, so the connection is firm and stable and not easy to loosen.

[0034] In an optional embodiment, the chassis includes an annular chassis body, and the support column is installed in the inner hole of the chassis body;

[0035] The fixing structure includes two connecting plates fixedly arranged at intervals on the inner periphery of the chassis body, and the two connecting plates are respectively provided with screw holes;

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

[0037] Beneficial effect: The connecting plate is arranged in an L-shaped avoidance position, which can provide avoidance space for the protruding bolt column, making it convenient for the screw column to be connected with the screw hole on the connecting plate.

[0038] In an optional embodiment, the locking structure is provided on the inner circumference of the chassis body, a reinforcement plate is provided between the two connecting plates and the chassis body, and the top surface of the reinforcement plate and the top surfaces of the two connecting plates are in the same plane.

[0039] Beneficial Effects: The reinforcement plate installed between the two connecting plates and the chassis increases the structural strength of the two connecting plates, effectively preventing bending and deformation of the connecting plates under stress, which could lead to an unstable connection between the support column and the chassis and cause the entire machine to shake. Furthermore, the top surface of the connecting plate and the top surface of the reinforcement plate are on the same plane, preventing the bolt column at the bottom of the support column from getting stuck at the intersection of the connecting plate and the reinforcement plate during the rotation of the chassis and support column, which would affect the smoothness of the engagement.

[0040] In a second aspect, the present invention further provides a fan, comprising a base assembly of the fan according to any of the above embodiments and a head connected above a support column of the base assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 A schematic structural diagram of a fan in an embodiment of the present invention;

[0043] Figure 2 Schematic diagram of the structure of the support column in an embodiment of the present invention;

[0044] Figure 3 for Figure 2 Side view of;

[0045] Figure 4 for Figure 2 Schematic diagram of the structure from the bottom perspective;

[0046] Figure 5 This is a schematic structural diagram of a chassis from a top perspective in an embodiment of the present invention;

[0047] Figure 6 for Figure 5 A top view of

[0048] Figure 7 This is a schematic diagram of a structure in which the bottom surface of the chassis faces upwards in an embodiment of the present invention;

[0049] Figure 8 for Figure 5 Bottom view of

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

[0051] Figure 10 This is a structural diagram of the assembly process of the support column and the chassis according to an embodiment of the present invention (from another perspective of the bottom of the fan);

[0052] Figure 11 is a cross-sectional view of a fan according to an embodiment of the present invention;

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

[0054] Description of reference numerals:

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

[0056] 20. Chassis; 201. Clamping structure; 2011. Clamping portion; 2012. Stopper; 2013. Guide portion; 202. Fixing structure; 2020. Screw hole; 2021. Connecting plate; 2022. Reinforcement plate; 2001. Rotational space; 2002. Positioning support space; 203. Positioning step;

[0057] 30. Machine nose. DETAILED DESCRIPTION

[0058] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0059] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0060] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0061] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0062] In existing fan products, the support columns are generally divided into single support column structures and single support column double-ear structures. Among them, fans with a single support column structure generally adopt an integrated molding method of the support column and the chassis, and the support column and the chassis are directly fixed through the injection molding process. Although this simplifies the installation steps, there are problems such as difficult maintenance and large transportation volume. For fans with a single support column double-ear structure, the support column is similar to a Y-shape, and the support column and the chassis are fixed with multiple screws or complex clips. Multiple alignment and repeated tightening are required, which is time-consuming and has a low fault tolerance. Some fans are fixed with multiple screws and need to be positioned with a positioning column first. Since the alignment hole size is relatively small and is easily blocked by the support column, alignment is difficult and operation is inconvenient.

[0063] To reduce assembly difficulty, some fans fix the support column and chassis directly through a rotating snap-fit method. Since most of the weight of the entire machine is concentrated on the head, the support column and chassis are only fixed by snap-fit, or snap-fit, or snap-fit + snap-fit. The fixation is not reliable. When the fan is working, the head will cause the support column to shake, aggravating the failure of the connection structure between the support column and the chassis, affecting the stability of the entire machine, and poor user experience.

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

[0065] The following combination Figures 1 to 12 , describing 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, comprising a chassis 20 and a support column 10, wherein the support column 10 is disposed above the chassis 20. The chassis 20 and the support column 10 are rotatably engaged to a predetermined assembly position and secured thereto via fasteners. Specifically, the chassis 20 is provided with an engaging structure 201 and a fixing structure 202, while the support column 10 is correspondingly provided with an engaging structure 101 and a fixing structure 102. The chassis 20 and the support column 10 are rotatably engaged to the corresponding assembly position of the fixing structure 202 and the fixing structure 102 via the engaging structure 201 and the engaging structure 101, and secured thereto via fasteners.

[0067] In the above embodiment, during assembly, the chassis 20 and the support column 10 are rotated and engaged with the locking structure 201 and the locking matching structure 101 to the assembly positions corresponding to the fixing structure 202 and the fixing matching structure 102, and then the fixing structure 202 and the fixing matching structure 102 are connected by fasteners, thereby achieving the fixation of the chassis 20 and the support column 10. The chassis 20 and the support column 10 are pre-positioned by adopting a rotational locking method. Compared with the existing method of alignment and positioning through positioning columns, it can reduce the difficulty of alignment, save manpower and time, and improve production efficiency, and effectively solve the problem that the existing method of positioning using positioning columns and positioning holes is difficult to align and inconvenient to operate. 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 to form a certain constraint in the vertical direction, 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 adopting a rotating snap-fit + fastener method. Compared with a single snap-fit, or snap-fit, or snap-fit + snap-fit fixing method, the fixation is more secure and stable, the fan is not easy to shake, and the stability of the whole machine is higher.

[0068] In some embodiments, the locking structure 201 includes a locking portion 2011 and a stop portion 2012, wherein the locking portion 2011 is rotatably engaged with the locking matching structure 101 and forms a limit with the locking matching structure 101 in the vertical direction; the stop portion 2012 is provided at one end of the locking portion 2011, and the stop portion 2012 is used to cooperate with the locking matching structure 101 to limit the chassis 20 and the support column 10 to the assembly position where the fixed structure 202 is opposite to the fixed matching structure 102.

[0069] In the above embodiment, during the rotational engagement of the chassis 20 and the support column 10, the engaging portion 2011 engages with the engaging structure 101, and the two form a constraint in the vertical direction, which serves as a pre-fixation. When adjusting the fuselage angle or moving the support column 10 upward, the movement can be restricted, so that the entire device does not shake or shakes less. Moreover, when the rotation is in place, the stop portion 2012 can engage with the engaging structure 101 to stop the chassis 20 and the support column 10, so as to limit the chassis 20 and the support column 10 to a position where the fixing structure 202 and the fixing structure 102 are directly opposite each other, thereby serving as a positioning function, achieving rapid alignment of the fixing structure 202 and the fixing structure 102, facilitating fastener connection, reducing alignment difficulty, and improving assembly efficiency. Furthermore, the combination of the engaging structure 201 and the engaging structure 101, the fixing structure 202, and the fixing structure 102 can improve the space utilization and stability of the product.

[0070] Specifically, the locking portion 2011 is locked into the locking fitting structure 101, and the locking fitting structure 101 includes a locking groove 1010. The locking portion 2011 is locked into the locking groove 1010, and the two limit each other in the vertical direction. Along the rotation direction of the chassis 20, the stop portion 2012 is fixedly set at the end of the locking portion 2011. When the chassis 20 and the support column 10 are rotated into place, the stop portion 2012 abuts against the locking fitting structure 101, limiting and positioning the chassis 20 and the support column 10, so that the fixed structure 202 and the fixed fitting structure 102 can be aligned, which is convenient for the connection of fasteners.

[0071] It should be noted that, in this embodiment, the snap-fitting portion 2011 is not limited to being snap-fitted into the snap-fitting structure 101. The snap-fitting portion 2011 and the snap-fitting structure 101 may also be snap-fitted into each other, or the snap-fitting structure 101 may be snap-fitted into the snap-fitting portion 2011. This embodiment does not limit this.

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

[0073] In the above embodiment, the engaging portion 2011 and the engaging structure 101 are in the form of an engaging rib and an engaging groove 1010, which are simple in structure and convenient for engagement. Furthermore, the stopper 2012 provided at the end of the engaging rib allows for positioning of the chassis 20 and the support column when they are rotated into position. 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 a small angle until the stopper 2012 is stopped by the engaging structure 101, i.e., the chassis 20 is rotated into position. The chassis 20 is then secured with a locking member, completing the installation of the chassis 20 and the support column 10. This simple and efficient installation method is employed.

[0074] Specifically, the engaging rib is a strip-shaped rib. Along the rotational 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. An angle is formed between the stop rib and the engaging portion 2011. Preferably, the stop portion 2012 is arranged at a 90-degree angle to the engaging portion 2011, and the entire engaging structure 201 is L-shaped. The chassis 20 has an annular chassis body. The lower end of the support column 10 is rotatably engaged in the inner hole of the chassis body. A positioning step 203 is provided on the inner circumference of the inner hole of the chassis body, and a matching step 103 is provided on the outer circumference of the lower end of the support column 10. The matching step 103 is limited within the positioning step 203.

[0075] Furthermore, the positioning step 203 and the matching step 103 are both L-shaped, the positioning step 203 includes a first positioning surface set in the horizontal direction and a first limiting surface set in the vertical direction, and the matching step 103 includes a second positioning surface set in the horizontal direction and a second limiting surface set 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 fully contacted and matched with the first positioning surface of the chassis 20, the chassis 20 is rotated again so that the locking structure 201 of the chassis 20 enters the locking and matching structure 101 of the support column 10 until the side of the locking and matching structure 101 of the support column 10 abuts against the stop portion 2012 of the locking structure 201, indicating that it has been rotated into place. At this time, the fixing structure 202 and the fixing and matching structure 102 are connected by fasteners to achieve the connection and fixation of the chassis 20 and the support column 10. Through the setting of the above-mentioned positioning step 203 and the matching step 103, the support column 10 and the chassis 20 are positioned through the first positioning surface and the second positioning surface during assembly, ensuring that the locking portion 2011 can enter the locking matching structure 101, thereby achieving precise docking between the locking portion 2011 and the locking matching structure 101.

[0076] In some embodiments, as Figures 2 to 4 、 Figures 7 to 10 As shown, the snap-fitting structure 101 also includes a snap-fitting body, which is provided with a snap-fitting groove 1010. The snap-fitting body is fixedly arranged on the bottom wall of the support column 10. The snap-fitting groove 1010 is an open groove opened on the snap-fitting body, and the opening of the open groove faces the outer peripheral side of the support column 10; when the chassis 20 and the support column 10 are rotated to the preset assembly position, the stop portion 2012 is against the side wall of the snap-fitting body to form a positioning.

[0077] In the above embodiment, the locking groove 1010 is an open groove with its opening facing the outer peripheral side of the support column 10, and the locking portion 2011 enters from one side of the locking groove 1010. When entering the locking groove 1010, it can form a limit with the upper and lower groove walls of the locking groove 1010. Compared with the existing method of setting the locking groove 1010 on the bottom wall of the support column 10 or the top wall of the chassis 20, on the one hand, it is more convenient for the locking portion 2011 to be screwed into the locking groove 1010, and on the other hand, the locking portion 2011 can form a limit with the upper and lower groove walls of the locking 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 be in a plate-like or block-like structure, and is fixed to the bottom wall of the support column 10, being integrally formed with the support column 10. The engaging portion 2011 enters the engaging groove 1010 from one end of the engaging body. When the chassis 20 and the support column 10 are rotated into position, the side wall of the engaging body at that end abuts against the stop portion 2012, forming a limit position. At this time, the fixing structure 202 and the fixed matching structure 102 are directly opposite each other.

[0079] In some embodiments, the snap-fitting body includes a plurality of snap-fitting plates 1011, which are arranged at intervals, and the snap-fitting plates 1011 have snap-fitting edges, which are located on the outer peripheral side of the support column 10, and the snap-fitting groove 1010 includes a plurality of open grooves correspondingly opened on the plurality of snap-fitting edges; the snap-fitting body also includes a reinforcing plate 1012, which is fixedly connected between the plurality of snap-fitting plates 1011 and the support column 10, and is used to increase the strength of the snap-fitting plate 1011.

[0080] In the above embodiment, the engaging body adopts the structure of engaging plates 1011, which is more convenient to process and shape than a block structure, and is also more conducive to reducing the weight of the entire device. Moreover, the multiple engaging plates 1011 arranged at intervals and the corresponding multiple openings can improve the stability of the engaging. In addition, the reinforcing plates 1012 provided 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 deformation under stress, and further improve the engaging effect.

[0081] Specifically, if Figure 2 and Figure 3 As shown, the snap plate 1011 is a square plate or a triangular plate. Preferably, in this embodiment, the snap plate 1011 is a triangular plate, as the triangle shape has higher stability. The snap plate 1011 also includes a fixed edge fixed to the bottom wall of the support column 10 and a connecting edge obliquely connected between the fixed edge and the snap edge. The reinforcing plate 1012 is connected between the connecting edges of the multiple snap plates 1011 and the bottom wall of the support column 10. Preferably, the reinforcing plate 1012 is a strip-shaped plate, the top wall of the strip-shaped reinforcing plate 1012 is connected to the multiple snap plates 1011, and its inner side is connected to the bottom wall of the support column 10. During assembly, the snap portion 2011 is screwed into the multiple open slots of the multiple snap plates 1011 in sequence. When rotated into place, the stop portion 2012 abuts against the side wall of the first snap plate 1011. In one example, there are three engaging plates 1011 , and the engaging slot 1010 includes three opening slots correspondingly spaced apart on the three engaging plates 1011 .

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

[0083] Through the setting of the above-mentioned guide part 2013, when rotating and engaging, the engaging part 2011 can slide into the engaging groove 1010 more easily and easily under the guidance of the inclined surface of the guide part 2013, thereby improving the smoothness, avoiding the occurrence of jamming and other unsmooth phenomena during the rotation and engagement of the chassis 20 and the support column, and improving 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 rear end of the engaging portion 2011. As the engaging portion 2011 is screwed into the engaging slot 1010, the vertical distance between the inclined surface of the guide portion 2013 and the chassis body gradually increases. The inclined surface angle provided at the front end of the engaging portion 2011 facilitates the screwing of the engaging structure 201 into the engaging slot 1010. When the support column 10 and chassis 20 rotate until the chassis 20 abuts the stop portion 2012, the rotation is complete, and screws can then be inserted to secure the support column 10 and chassis 20.

[0085] In some embodiments, as Figure 6 As shown, the fixing structure 202 and the engaging structure 201 are spaced apart along the circumference of the chassis 20, and the angle α formed between the fixing structure 202 and the engaging structure 201 is greater than 90 degrees. This angle design further disperses the engaging and fixing points between the chassis 20 and the support column 10, making the connection between the support column 10 and the chassis 20 more secure and stable, and the overall stability of the device is higher and less prone to shaking. This effectively avoids the problem of the engaging and fixing points being concentrated on one side of the device, which would lead to poor balance and stability and easy shaking of the device.

[0086] In some embodiments, the fixed structure 202 and the fixed matching structure 102 form a group, and the angle between the fixed structure 202 and the locking structure 201 is between 145° and 180°. Preferably, when the fixed structure 202 forms a group, the angle between the fixed structure 202 and the locking structure 201 is approximately 180°, and the balance and stability of the whole machine is better.

[0087] In some embodiments, there are two groups of fixing structures 202 , and the two groups of fixing structures 202 are distributed on both sides of the locking structure 201 .

[0088] In the above embodiment, by arranging the two sets of fixing structures 202 on either side of the engaging structure 201, the connection between the support column and the chassis 20 is more stable than if the two sets of fixing structures 202 were arranged 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 triangular shape on the chassis 20, which not only makes the chassis 20 assembly more secure and reliable, but also provides greater stability and resistance to deformation, making it less likely to become loose or shaken due to external conditions.

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

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

[0091] In the above embodiment, the fixing structure 202 and the fixing matching structure 102 adopt bolt columns and screw holes 2020, and the fasteners adopt the structural form of screws, so the connection is firm and stable and not easy to loosen.

[0092] Of course, in other alternative embodiments, the fasteners may also be rivets, and the fixing structure 202 and the fixing matching structure 102 may correspondingly adopt the structural form of rivet columns and rivet holes.

[0093] In some embodiments, 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 circumference of the chassis body, and the two connecting plates 2021 are respectively provided with screw holes 2020; the fixed matching structure 102 includes a bolt column protruding from the bottom wall of the support column 10, and 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-shaped avoidance configuration, which can provide avoidance space for the protruding bolt column, thereby facilitating the connection and cooperation between the screw column and the screw hole 2020 on the connecting plate 2021 .

[0095] In some embodiments, the locking structure 201 is arranged on the inner peripheral side of the chassis body, and a reinforcement plate 2022 is arranged between the two connecting plates 2021 and the chassis body. The reinforcement plate 2022 is connected between the two connecting plates 2021, and the reinforcement plate 2022 and the top surface of the two connecting plates 2021 are in the same plane.

[0096] In the above embodiment, the reinforcement plate 2022 disposed between the two connecting plates 2021 and the chassis body increases the structural strength of the two connecting plates 2021, effectively preventing the connecting plates 2021 from bending and deforming under stress, which could lead to an unstable connection between the support column 10 and the chassis 20 and swaying of the entire device. Furthermore, the top surfaces of the connecting plates 2021 and the reinforcement plates 2022 are coplanar, preventing the bolts at the bottom of the support column from becoming stuck at the junction of the connecting plates 2021 and the reinforcement plates 2022 during rotation of the chassis and support column, thereby affecting the smoothness of the engagement.

[0097] In addition, the reinforcement plate 2022 can also form a larger avoidance space with the two connecting plates 2021. The avoidance space is a positioning and supporting space 2002 for placing the fixed matching structure 102, which can position and support the fixed matching structure 102 (i.e., the bolt column), increase the placement area of the bolt column, and improve assembly efficiency. During the specific assembly, align the bolt column with the top surface of the connecting plate 2021 and the reinforcement plate 2022, then lower the support column 10, and then rotate it at a small angle, rotate the locking matching structure 101 until it is blocked by the stop part 2012 of the locking structure 201, and then rotate it into place, and then drive two screws to complete the installation of the chassis 20 and the support column 10. The installation method of the support column 10 and the chassis 20 adopts a one-alignment, one-rotation, and two-screw method. The installation process is simple and efficient, can reduce the use of screws and complex buckles, and improve production efficiency.

[0098] Preferably, if Figure 5 As shown, the reinforcing plate 2022 and the two connecting plates 2021 are integrally formed, and 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 concave positioning support space 2002 for supporting the support bolt column.

[0099] In some embodiments, as Figures 5 to 10 As shown, the integrally connected reinforcement 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 on the side near the engaging structure 201 and is larger than the second hollow area. The first hollow area provides a rotational space 2001 for the engaging structure 101. The design of the first hollow area facilitates the placement of the engaging structure 101 during the initial assembly process, providing sufficient rotational space for the engaging structure 101.

[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 adopt a minimalist installation step combination of "one alignment, one rotation, and two screws". By fixing them with a rotating snap fit + screw method, not only the space utilization rate and connection stability of the product are improved, but also the use of fixing methods such as screws and complex snaps can be reduced, thereby improving production efficiency. In addition, it can effectively avoid the existing support column 10 and the chassis 20 being fixed by snap fit, snap fit, or snap fit + snap fit. The shape of the support column 10 has high requirements. The support column 10 can only be made into a regular columnar or symmetrical structure, and the product appearance is single and limited. Otherwise, it is easy to cause the connection between the support column 10 and the base to fail due to uneven force. The appearance of the support column 10 in this embodiment has a variety of options and can be set to any irregular shape to make the fan appearance form a unique style.

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

[0103] Based on existing fan products, this application proposes a new method for installing the support column 10 and chassis 20. After the head 30 and support column 10 are installed, the positioning support space 2002 of the chassis 20 (i.e., the L-shaped avoidance space formed by the connecting plate 2021 and the reinforcement 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 stopped by the stop portion 2012 of the chassis 20, thus rotating it into place. Then, two screws are driven in, completing the installation of the chassis 20. Specifically, the support column 10 and chassis 20 are designed with mutually cooperating fixing structures 202 and fixing matching structures 102, as well as engaging structures 201 and engaging matching structures 101.

[0104] like Figure 5 and Figure 6 、 Figure 11 and 12As shown, a first hollow area is designed on the chassis 20, that is, a rotation space 2001 is placed, and a snap-fit structure 101 is designed on the support column 10. The rotation space 2001 of the chassis 20 is aligned with the snap-fit structure 101 of the support column 10. When the matching step 103 of the support column 10 is fully matched with the positioning step 203 of the chassis 20, the chassis 20 can be rotated. At this time, the snap-fit structure 201 of the chassis 20 enters the snap-fit structure 101 of the support column 10 until the side of the snap-fit structure 101 abuts against the stop part 2012 of the snap-fit structure 201, which means that the rotation is in place and the screws can be screwed in to fix it. This embodiment is fixed with two screws. The snap-fit structure 201 of the support column 10 and the chassis 20 and the snap-fit structure 101 have the function of pre-fixing. In addition, when the fuselage angle is adjusted or the support column 10 is moved upward, the movement can be restricted to prevent it from shaking or reduce shaking. The present application provides an installation method for a single support column and a chassis 20, so that the structure of the support column 10 is not limited to an integral molding and a double-ear structure, and has more different shapes and appearances, thereby increasing the possibility of the overall appearance of the product. It can solve the problems of maintenance difficulties that may be caused by the integral molding of the support column 10 and the chassis 20 and the time-consuming operation of the single support column double-ear structure, reduce the use of screws and complex snap-on structures, and improve production efficiency.

[0105] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations shall fall within the scope of protection of the embodiments of the present application.

Claims

1. A fan base assembly, characterized in that: include: A chassis (20) is provided with a snap-fit structure (201) and a fixing structure (202); A support column (10) is arranged above the chassis (20), and a snap-fitting structure (101) and a fixed fitting structure (102) are correspondingly provided on the support column (10); The chassis (20) and the support column (10) are rotatably engaged with each other through the engaging structure (201) and the engaging matching structure (101) to the corresponding assembly positions of the fixing structure (202) and the fixing matching structure (102) and are connected and fixed by fasteners.

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

3. The fan base assembly according to claim 2, characterized in that: The engaging portion (2011) comprises an engaging rib fixedly arranged on the chassis (20); The snap-fitting structure (101) comprises a snap-fitting groove (1010) provided at the bottom of the support column (10); Along the direction in which the locking rib is screwed into the locking groove (1010), the stopper (2012) is arranged at the end of the locking rib.

4. The fan base assembly according to any one of claims 1 to 3, characterized in that: The snap-fit structure (101) further includes: A snap-fitting body, fixedly arranged on the bottom wall of the support column (10), and a snap-fitting groove (1010) is provided on the snap-fitting body; The engaging groove (1010) is an open groove provided on the engaging body, and the opening of the open groove faces the outer peripheral side of the supporting column (10); When the chassis (20) and the support column (10) are rotated to a preset assembly position, the stop portion (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 comprises: A plurality of engaging plates (1011) are arranged at intervals, the engaging plates (1011) having engaging edges, the engaging edges being located on the outer periphery of the support column (10), and the engaging groove (1010) comprising a plurality of opening grooves correspondingly provided on the plurality of engaging edges; A reinforcing plate (1012) is fixedly connected between the plurality of snap-fit plates (1011) and the support column (10) and is used to increase the strength of the snap-fit plates (1011).

6. The base assembly of the fan according to claim 2 or 3, characterized in that: The engaging structure (201) further comprises: The guide portion (2013) is arranged at one end of the engaging portion (2011) away from the stop portion (2012), and the guide portion (2013) includes an inclined surface arranged 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 spaced apart along the circumference of the chassis (20), and the angle formed between the fixing structure (202) and the engaging structure (201) is greater than 90 degrees; And / or, the fixing structure (202) has two groups, and the two groups of fixing structures (202) are distributed on both sides of the locking structure (201); And / or, one of the fixing structure (202) and the fixing matching structure (102) includes a bolt column, the other includes a screw hole (2020), and the fastener includes a screw.

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

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

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

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