Tower fan and base assembly thereof

Abstract

The utility model relates to a tower fan and a base assembly thereof. The base assembly comprises a base plate and a connecting piece, the base plate comprises two bottom plates, the bottom plates are provided with joint faces, and the two bottom plates are attached to the joint faces in a face-to-face mode and buckled to form the base plate; a through hole is formed in the joint surface of the chassis in a penetrating manner; the connecting piece comprises a first connecting body and a second connecting body, and the first connecting body and the second connecting body are in threaded connection at the through hole and abut against the two opposite sides of the base plate respectively so as to jointly clamp the two base plates. Quick connection can be achieved by buckling the two bottom plates, and locking through a threaded connecting piece is not needed. The first connecting body and the second connecting body are quickly connected at the through holes in a threaded connection mode, and meanwhile the first connecting body and the second connecting body jointly clamp the two bottom plates on the two opposite sides of the base plate, so that the two bottom plates can be prevented from moving relatively, the connection reliability of the two bottom plates is improved, and the whole base plate has good supporting strength.

Description

Technical Field

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

[0002] At present, the bases of existing household appliances such as tower fans and floor fans have a large diameter and a large volume. In order to facilitate transportation, the base and the functional components are usually separated, and then the functional components are assembled through two semicircular parts by threaded connectors such as screws, bolts and nuts to obtain the entire base. This not only makes the disassembly and assembly operation more troublesome, but also has the problem of unreliable connection, resulting in poor support strength of the base. Utility Model Content

[0003] Based on this, it is necessary to provide a base assembly that is easy to assemble and disassemble and has good supporting strength, and also provide a tower fan that includes the aforementioned base assembly.

[0004] A base assembly, comprising:

[0005] The chassis comprises two bottom plates, the bottom plates have joint surfaces, the two bottom plates are fitted together at the joint surfaces and interlocked to obtain the chassis; the chassis is provided with a through hole penetrating through the joint surfaces; and

[0006] The connecting member includes a first connecting body and a second connecting body, wherein the first connecting body and the second connecting body are threadedly connected at the through hole and respectively abut against opposite sides of the chassis to clamp the two bottom plates together.

[0007] In the above-mentioned base assembly, the two bottom plates are fastened together to achieve a quick connection without the need for locking by a threaded connector. Furthermore, by enabling the first connector and the second connector to achieve a quick connection by threaded connection at the through hole, and by clamping the two bottom plates together on opposite sides of the chassis, the two bottom plates can be prevented from moving relative to each other, thereby improving the connection reliability of the two bottom plates, and further enabling the entire chassis to provide a stable support effect and have a good support strength. In this way, the base assembly of the present application is relatively simple and quick to operate during assembly and disassembly, and has a good support strength.

[0008] In one embodiment, the first connecting body includes a first connecting portion and a second connecting portion, the first connecting portion is used to connect the functional component and is supported against the chassis; the second connecting portion is connected to the first connecting portion, the second connecting portion extends into the through hole, and is threadedly connected to the second connecting body.

[0009] In one embodiment, one of the second connecting portion and the second connecting body has a cylindrical outer wall surface, and the other has a cylindrical inner wall surface; the outer wall surface is provided with an external thread, and the inner wall surface is provided with an internal thread, and the external thread matches the internal thread.

[0010] In one embodiment, the outer wall surface includes two first side areas without the external thread, the two first side areas are arranged opposite to each other in the circumferential direction of the outer wall surface, and both extend to the edge along the axial direction of the outer wall surface; the inner wall surface includes two second side areas without the internal thread, the two second side areas are arranged opposite to each other in the circumferential direction of the inner wall surface, and both extend to the edge along the axial direction of the inner wall surface.

[0011] In one of the embodiments, the chassis is provided with a receiving groove at the periphery of the through hole, and an end of the first connecting portion close to the second connecting portion can be received in the receiving groove.

[0012] In one of the embodiments, the joint surface has a center position corresponding to the geometric center of the chassis, and the joint surface of any one of the base plates is respectively provided with an avoidance groove and a positioning protrusion on both sides of the center position, and the base plate is provided with a positioning column at a position corresponding to the avoidance groove; the positioning protrusion is provided with a positioning hole matching the shape of the positioning column; the positioning column on any one of the base plates can extend into the positioning hole on the other base plate along the axial direction of the through hole, and at least part of the positioning protrusion is accommodated in the avoidance groove.

[0013] In one embodiment, the positioning posts and the positioning protrusions are both multiple and equal in number, the multiple positioning posts are located on the same side of the center position, and the multiple positioning protrusions are located on the same side of the center position.

[0014] In one of the embodiments, the joint surface has a center position corresponding to the geometric center of the chassis, and the joint surface of any one of the base plates is provided with a buckle and a slot on both sides of the center position, respectively. The buckle of any one of the base plates can be engaged with the other base plate at the slot to achieve locking of the two base plates in a direction perpendicular to the joint surface.

[0015] In one embodiment, the chassis is provided with a receiving groove at the periphery of the through hole, and part of the first connector is received in the receiving groove and abuts against the bottom of the receiving groove; the clamping groove is provided through the bottom of the receiving groove and is adjacent to the joint surface.

[0016] A tower fan comprises a functional component and the above-mentioned base component, wherein the functional component is detachably connected to the first connector.

[0017] In the above tower fan, since the base assembly is relatively simple to assemble and disassemble and has good supporting strength, it can provide stable support for the functional components, so that the structural stability of the entire tower fan is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the base assembly of an embodiment of the present application;

[0020] Figure 2 for Figure 1 An exploded schematic diagram of the structure of the base assembly from one perspective;

[0021] Figure 3 for Figure 1 An exploded schematic diagram of the structure of the base assembly from another perspective;

[0022] Figure 4 for Figure 1 A schematic diagram of the structure of the chassis after the connecting parts are omitted in the base assembly shown;

[0023] Figure 5 for Figure 1 A schematic structural diagram of a first connecting portion and a second connecting portion in a connecting member in the base assembly shown;

[0024] Figure 6 for Figure 1 A schematic structural diagram of a bottom plate of a base in the base assembly shown;

[0025] Figure 7 for Figure 6 A schematic structural diagram of the bottom plate from another perspective;

[0026] Figure 8 for Figure 1 A top view and a cross-sectional view along AA of the base assembly shown;

[0027] Description of reference numerals:

[0028] 10. Base assembly; 100. Chassis; 110. Bottom plate; 110a. First bottom plate; 110b. Second bottom plate; 111. Joint surface; 112. Avoidance notch; 113. Positioning protrusion; 114. Positioning hole; 115. Positioning column; 116. Buckle; 117. Slot; 120. Through hole; 130. Accommodating groove; 200. Connector; 210. First connector; 211. First connecting portion; 211a. Connecting hole; 212. Second connecting portion; 213. Outer wall surface; 214. External thread; 215. First side area; 220. Second connector; 221. Inner wall surface; 222. Internal thread; 223. Second side area. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0035] Combination Figures 1 to 8 As shown, the present application protects a base assembly 10, which is a bottom support structure of electronic products such as tower fans and floor fans. The base assembly 10 specifically includes a chassis 100 and a connector 200. The chassis 100 includes two bottom plates 110, and the bottom plates 110 have a joint surface 111. The two bottom plates 110 are fitted face to face and interlocked at the joint surface 111 to obtain the chassis 100. The chassis 100 is provided with a through hole 120 at the joint surface 111. The connector 200 includes a first connector 210 and a second connector 220, and the first connector 210 and the second connector 220 are threadedly connected at the through hole 120, and are respectively abutted against opposite sides of the chassis 100 to clamp the two bottom plates 110 together.

[0036] In the present application, the shapes and structures of the two bottom plates 110 are completely identical. The two bottom plates 110 are semicircular, and after being connected and spliced, a circular chassis 100 is obtained. In other embodiments, the chassis 100 can also be other shapes such as a rectangle or an ellipse, and the chassis 100 can be divided into two completely identical bottom plates 110 along the central symmetry axis passing through the geometric center of the chassis 100, and the side surface of the bottom plate 110 corresponding to the central symmetry axis of the chassis 100 is the joint surface 111. In the process of splicing the two bottom plates 110 to obtain the chassis 100, the joint surfaces 111 of the two bottom plates 110 need to be fitted together face to face.

[0037] In the present application, the through hole 120 is equally divided into two parts along the central symmetry axis of the chassis 100, thereby presenting a cylindrical groove with a semicircular cross-section on the bottom plate 110. When the two bottom plates 110 are spliced ​​together to obtain the chassis 100, the two grooves together form the entire through hole 120.

[0038] In the present application, the two bottom plates 110 are fastened together to achieve a quick connection without the need for locking through the threaded connector 200. Furthermore, by enabling the first connector 210 and the second connector 220 to achieve a quick connection through a threaded connection at the through hole 120, and by clamping the two bottom plates 110 together on opposite sides of the chassis 100, the two bottom plates 110 can be prevented from moving relative to each other, thereby improving the connection reliability of the two bottom plates 110, and further enabling the entire chassis 100 to provide a stable support function and have a good support strength. In this way, the base assembly 10 of the present application is relatively simple and quick to operate during assembly and disassembly, and has a good support strength.

[0039] Combination Figures 1 to 5 , Figure 8 As shown, specifically in the present application, the first connecting body 210 includes a first connecting portion 211 and a second connecting portion 212, the first connecting portion 211 is used to connect the functional component (not shown) and abut against the chassis 100; the second connecting portion 212 is connected to the first connecting portion 211, the second connecting portion 212 extends into the through hole 120, and is threadedly connected to the second connecting body 220. It can be understood that after the functional component is installed on the first connecting portion 211, the abutting effect of the chassis 100 on the first connecting portion 211 and the limiting effect of the inner wall of the through hole 120 on the second connecting portion 212 enable the first connecting body 210 to provide stable support for the functional component. In the present application, a connecting hole 211a is provided on the first connecting portion 211, and a threaded fastener can be passed through the connecting hole 211a to install the functional component on the first connecting portion 211.

[0040] Specifically, the second connection portion 212 is cylindrical and has an outer wall surface 213, the second connection body 220 is annular and has a cylindrical inner wall surface 221, the outer wall surface 213 of the second connection portion 212 is provided with an outer thread 214, and the inner wall surface 221 of the second connection body 220 is provided with an inner thread 222, and the threaded connection between the second connection portion 212 and the second connection body 220 is achieved through the cooperation between the outer thread 214 and the inner thread 222. In other embodiments, the second connection portion 212 can also be hollow inside to form a cylindrical inner wall surface 221 to provide the inner thread 222, and the second connection body 220 can have a cylindrical outer wall surface 213 to provide the outer thread 214, so that the second connection portion 212 and the second connection body 220 can also be threadedly connected through the cooperation between the inner thread 222 and the outer thread 214.

[0041] It can be understood that in the embodiment where the second connecting portion 212 is provided with an external thread 214 and the second connecting body 220 is provided with an internal thread 222, the first connecting portion 211 can be convenient for a person to hold and exert force, and the outer peripheral surface of the second connecting body 220 can also be convenient for a person to hold and exert force, so that the operator can hold the first connecting portion 211 and the second connecting body 220 with both hands respectively, and realize a quick threaded connection between the second connecting portion 212 and the second connecting body 220 by reverse rotation without using any auxiliary tools.

[0042] Specifically in the present application, the outer wall surface 213 includes two first side areas 215 without external threads 214, and the two first side areas 215 are arranged opposite to each other in the circumferential direction of the outer wall surface 213, and both extend to the edge along the axial direction of the outer wall surface 213. The inner wall surface 221 includes two second side areas 223 without internal threads 222, and the two second side areas 223 are arranged opposite to each other in the circumferential direction of the inner wall surface 221, and both extend to the edge along the axial direction of the inner wall surface 221. It can be understood that the two first side areas 215 cut off the external threads 214, so that the external threads 214 are in a discontinuous multi-segment structure on the outer wall surface 213. Similarly, the two second side areas 223 cut off the internal threads 222, and the internal threads 222 are in a discontinuous multi-segment structure on the inner wall surface 221. The two first side regions 215 are disposed opposite to each other, ie, they are 180° symmetrically arranged in the circumferential direction of the outer wall surface 213 , and the two second side regions 223 are disposed opposite to each other, ie, they are 180° symmetrically arranged in the circumferential direction of the inner wall surface 221 .

[0043] It can be understood that the first side area 215 is a plane parallel to the central axis of the cylindrical outer wall surface 213, and the second side area 223 is a plane parallel to the central axis of the cylindrical inner wall surface 221. The setting of the first side area 215 can meet the injection molding requirements of the first connector 200 while retaining the threaded features on the outer wall surface 213, avoiding spiral molding and simplifying the mold structure. Similarly, the setting of the second side area 223 can meet the injection molding requirements of the second connector 200 while retaining the threaded features on the inner wall surface 221, avoiding spiral molding and simplifying the mold structure. In other embodiments, the number of the first side areas 215 and the number of the second side areas 223 can also be more than two.

[0044] Combination Figures 4 to 8 As shown, specifically in the present application, the chassis 100 is provided with a receiving groove 130 on the periphery of the through hole 120, and one end of the first connection part 211 close to the second connection part 212 can be received in the receiving groove 130. It can be understood that after the first connection member 200 and the second connection member 200 are threadedly connected, the first connection part 211 is exposed from the chassis 100. The receiving groove 130 is located on the side of the chassis 100 that abuts against the first connection part 211. The receiving groove 130 is circular and concentrically arranged with the through hole 120, and the first connection part 211 is roughly cylindrical. One end of the first connection part 211 close to the second connection part 212 can be received in the receiving groove 130, and the end surface of the first connection part 211 is closely attached to the bottom of the receiving groove 130, so that the first connection part 211 and the chassis 100 are stably abutted together.

[0045] Specifically, in the present application, the joint surface 111 has a central position corresponding to the geometric center of the chassis 100, and the joint surface 111 of any bottom plate 110 is provided with an avoidance notch 112 and a positioning protrusion 113 on both sides of the central position, and the bottom plate 110 is provided with a positioning column 115 at a position corresponding to the avoidance notch 112. The positioning protrusion 113 is provided with a positioning hole 114 matching the shape of the positioning column 115, and the positioning column 115 on any bottom plate 110 can extend into the positioning hole 114 on the other bottom plate 110 along the axial direction of the through hole 120, and at least part of the positioning protrusion 113 is accommodated in the avoidance notch 112.

[0046] It can be understood that the positioning column 115 and the positioning hole 114 are both cylindrical and extend in a direction parallel to the axial direction of the through hole 120. The positioning protrusion 113 protrudes from the joint surface 111, and the positioning column 115 is located on the side of the bottom plate 110 away from the first connecting portion 211 and is arranged adjacent to the joint surface 111, so that the avoidance notch 112 located on the joint surface 111 can avoid the positioning protrusion 113, so that the positioning column 115 and the positioning hole 114 on the positioning protrusion 113 are matched and positioned on the side of the bottom plate 110 away from the first connecting portion 211.

[0047] It can be understood that, if one of the two bottom plates 110 is set as the first bottom plate 110a and the other is set as the second bottom plate 110b, the positioning column 115 on the first bottom plate 110a can match the positioning hole 114 on the second bottom plate 110b, and the positioning column 115 on the second bottom plate 110b can match the positioning hole 114 on the first bottom plate 110a. Since the two bottom plates 110 have the same structure, and the positions of the positioning column 115 and the positioning hole 114 on the same bottom plate 110 are respectively located on both sides of the center position, the two bottom plates 110 are connected in reverse matching on both sides of the center position, and the clamping effect of the first connector 210 and the second connector 220 on the chassis 100 can prevent the two bottom plates 110 from rotating relative to each other on the joint surface 111, so that the two bottom plates 110 can be stably connected.

[0048] In the present application, there are multiple and equal numbers of positioning posts 115 and positioning protrusions 113 on the same bottom plate 110. The multiple positioning posts 115 are located on the same side of the center position, and the multiple positioning protrusions 113 are located on the other side of the center position. In this way, the multiple positioning posts 115 on the first bottom plate 110a are matched with the multiple positioning holes 114 on the second bottom plate 110b in a one-to-one correspondence, and the multiple positioning posts 115 on the second bottom plate 110b are matched with the multiple positioning holes 114 on the first bottom plate 110a in a one-to-one correspondence. In the present application, there are two positioning posts 115 and two positioning protrusions 113 on the same bottom plate 110. In other embodiments, the number of positioning posts 115 and positioning protrusions 113 can also be other.

[0049] Continue reading Figures 4 to 8 Specifically in the present application, the joint surface 111 has a central position corresponding to the geometric center of the chassis 100, and the joint surface 111 of any bottom plate 110 is respectively provided with a buckle 116 and a slot 117 on both sides of the central position. The buckle 116 of any bottom plate 110 can be engaged with the other bottom plate 110 at the slot 117 to achieve locking of the two bottom plates 110 in a direction perpendicular to the joint surface 111. It can be understood that the buckle 116 of the first bottom plate 110a can be buckled with the second bottom plate 110b at the slot 117 on the second bottom plate 110b, and the buckle 116 of the second bottom plate 110b can be buckled with the first bottom plate 110a at the slot 117 on the first bottom plate 110a, so that the first bottom plate 110a and the second bottom plate 110b have two buckling connection positions on both sides of the center position to lock the two bottom plates 110 together in the direction perpendicular to the joint surface 111. Furthermore, in combination with the clamping effect of the first connector 210 and the second connector 220 on the chassis 100, relative rotation of the two bottom plates 110 on the joint surface 111 can be avoided, thereby achieving a stable connection between the two bottom plates 110.

[0050] Specifically, the card slot 117 is opened through the bottom of the receiving groove 130 and is adjacent to the joint surface 111. In this way, the first connector 210 will cover the card slot 117 after abutting against the chassis 100, thereby shielding the cooperation between the buckle 116 and the card slot 117 to avoid exposure and affecting the appearance of the chassis 100.

[0051] It should be noted that in the present application, the bottom plate 110 is provided with positioning protrusions 113 and positioning posts 115, and also provided with buckles 116 and slots 117 to improve the connection stability of the two bottom plates 110. In other embodiments, only positioning protrusions 113 and positioning posts 115 may be provided while buckles 116 and slots 117 are omitted, or only buckles 116 and slots 117 may be provided while positioning posts 115 and positioning protrusions 113 are omitted.

[0052] The present application also protects a tower fan, which includes a functional component (not shown) and the above-mentioned base component 10, and the functional component is detachably connected to the first connecting body 210. Specifically, the functional component is connected to the first connecting portion 211 in the first connecting body 210. In the present application, the functional component is a combination of devices with a rotating air outlet function. Since the base component 10 is relatively simple to disassemble and assemble, and has good supporting strength, it can provide stable support for the functional component, so that the structural stability of the entire tower fan is good.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A base assembly, characterized in that: include: The chassis comprises two bottom plates, each of which has a joint surface, and the two bottom plates are fitted together at the joint surface and interlocked to obtain the chassis; The chassis is provided with a through hole at the joint surface; the joint surface has a central position corresponding to the geometric center of the chassis, and the joint surface of any of the bottom plates is provided with an avoidance notch and a positioning protrusion on both sides of the central position, and the bottom plate is provided with a positioning column at a position corresponding to the avoidance notch; the positioning protrusion is provided with a positioning hole matching the shape of the positioning column; the positioning column on any of the bottom plates can extend into the positioning hole on the other bottom plate along the axial direction of the through hole, and at least part of the positioning protrusion is accommodated in the avoidance notch; as well as A connecting member, comprising a first connecting body and a second connecting body, the first connecting body and the second connecting body are threadedly connected at the through hole, and are respectively abutted against the opposite sides of the chassis to clamp the two bottom plates together; the first connecting body comprises a first connecting portion and a second connecting portion, the first connecting portion is used to connect the functional component and abut against the chassis; the second connecting portion is connected to the first connecting portion, the second connecting portion extends into the through hole, and is threadedly connected to the second connecting body; one of the second connecting portion and the second connecting body has a cylindrical outer wall surface, and the other has a cylindrical inner wall surface; the outer wall surface is provided with an external thread, and the inner wall surface is provided with an internal thread, and the external thread matches the internal thread; the outer wall surface comprises two first side surface areas without the external thread, the two first side surface areas are arranged opposite to each other in the circumferential direction of the outer wall surface, and both extend to the edge along the axial direction of the outer wall surface; the inner wall surface comprises two second side surface areas without the internal thread, the two second side surface areas are arranged opposite to each other in the circumferential direction of the inner wall surface, and both extend to the edge along the axial direction of the inner wall surface; the inner wall surface comprises two second side surface areas without the internal thread, 2. The base assembly according to claim 1, characterized in that: The chassis is provided with a receiving groove at the periphery of the through hole, and one end of the first connecting portion close to the second connecting portion can be received in the receiving groove.

3. The base assembly according to claim 1, characterized in that: The positioning posts and the positioning protrusions are both multiple and equal in number. The multiple positioning posts are located on the same side of the center position, and the multiple positioning protrusions are located on the same side of the center position.

4. The base assembly according to claim 1, characterized in that: The joint surface has a central position corresponding to the geometric center of the chassis, and the joint surface of any of the base plates is provided with buckles and slots on both sides of the central position, respectively. The buckle of any of the base plates can be engaged with the other base plate at the slot to achieve locking of the two base plates in a direction perpendicular to the joint surface.

5. The base assembly according to claim 4, characterized in that: The chassis is provided with a receiving groove at the periphery of the through hole, and part of the first connector is received in the receiving groove and abuts against the groove bottom of the receiving groove; the clamping groove is provided through the groove bottom of the receiving groove and is adjacent to the joint surface.

6. A tower fan, characterized in that: It comprises a functional component and a base component according to any one of claims 1 to 5, wherein the functional component is detachably connected to the first connector.

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