Tower fan top arrangement and outdoor tower fan

Abstract

The utility model discloses a kind of tower fan top arrangement structure and outdoor tower fan, the tower fan includes base, tower body being set in the top of the base, the tower body includes cross-flow fan, the cross-flow fan includes vertical wind wheel, motor being set in the bottom of the wind wheel, wind wheel positioning frame for limiting the top end of the wind wheel, the wind wheel positioning frame is fixed to the shell main body of the tower body, the wind wheel positioning frame includes circular ring main body, two mounting ears being set in the circular ring main body, the inside of the circular ring main body is used for limiting the top end of the wind wheel, the shell main body is provided with two mounting columns, the mounting column is connected by screw with the mounting ear.The utility model of a kind of tower fan top arrangement structure and outdoor tower fan, can reduce the occupied space of wind wheel positioning frame, facilitate to arrange other components.

Description

Technical Field

[0001] This utility model relates to the technical field of tower fan structure, and in particular to a tower fan top arrangement structure and an outdoor tower fan. Background Technology

[0002] A tower fan is a type of fan with a vertical column shape. Inside the tower fan is a vertical cross-flow fan, which allows the tower fan to have a large airflow range in the vertical direction.

[0003] In terms of composition, the tower fan mainly consists of a base and a tower body erected on the base.

[0004] To reduce limitations on usage scenarios, some tower fans have batteries installed in their bases. These batteries power the cross-flow fans, allowing the application of tower fans to be extended from indoors to outdoors.

[0005] In terms of layout, the impeller and motor of the cross-flow fan are arranged vertically, with the impeller located on top of the motor. Therefore, the tower fan also needs to be equipped with an impeller positioning frame, which limits the top of the impeller.

[0006] Regarding the shape of the wind turbine positioning frame, the wind turbine positioning frame typically includes an L-shaped first plate and a second plate. The first plate is horizontally positioned, and the second plate is vertically positioned. The first plate has a first mounting hole for mounting a bearing, which is fitted onto the spindle at the end of the wind turbine. The second plate has a second mounting hole for connecting the outer casing of the tower fan via screws.

[0007] However, the existing wind turbine positioning frame occupies a lot of space and affects the arrangement of other components. Utility Model Content

[0008] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a tower fan top arrangement structure that can reduce the space occupied by the wind turbine positioning frame and facilitate the arrangement of other components.

[0009] This utility model also proposes an outdoor tower fan with the above-mentioned tower fan top arrangement structure.

[0010] According to the first aspect of the present invention, the tower fan top arrangement structure includes a base and a tower body disposed on the top of the base. The tower body includes a cross-flow fan, the cross-flow fan includes a vertical impeller, a motor disposed at the bottom of the impeller, and an impeller positioning frame that limits the top of the impeller. The impeller positioning frame is fixed to the outer shell of the tower body. The impeller positioning frame includes a circular ring body and two mounting ears disposed on the circular ring body. The inner side of the circular ring body is used to limit the top of the impeller. The outer shell body is provided with two mounting columns, and the mounting columns are connected to the mounting ears by screws.

[0011] According to the tower fan top arrangement structure of the first aspect of the present invention, the wind turbine positioning frame includes an arched first support and a second support, the first support and the second support together forming the annular body and the two mounting ears.

[0012] According to the tower fan top arrangement structure of the first aspect embodiment of the present utility model, the first bracket is provided with a first ear at both ends, and the second bracket is provided with a second ear at both ends. The first ear and the second ear fit together to form a mounting ear.

[0013] According to the tower fan top arrangement structure of the first aspect of the present invention, one of the first ear and the second ear is provided with a positioning post, and the other of the first ear and the second ear is provided with a positioning hole for receiving the positioning post. The positioning post is provided with a mounting hole that extends through it along its axial direction, and the mounting hole is provided with a mounting screw for connecting the mounting post.

[0014] According to the tower fan top arrangement structure of the first aspect of the present invention, the positioning column includes a positioning tube and a plurality of positioning ribs disposed on the outer surface of the positioning tube. The positioning ribs include axially extending ribs located on the radial outer surface of the positioning tube and radially extending ribs located at the end of the positioning tube. The axially extending ribs and the radially extending ribs are integrally disposed.

[0015] According to the tower fan top arrangement structure of the first aspect embodiment of the present invention, the second ear is provided with a positioning cavity for accommodating the mounting column on the side opposite to the first ear.

[0016] According to the tower fan top arrangement structure of the first aspect embodiment of the present utility model, the wind turbine positioning frame further includes a rolling bracket, which is rotatably disposed between the first bracket and the second bracket, and the rolling bracket is provided with a central hole for accommodating the top end of the wind turbine.

[0017] According to the tower fan top arrangement structure of the first aspect embodiment of the present utility model, the rolling support includes an upper outer convex ring portion, a lower outer convex ring portion, and an annular groove portion located between the upper outer convex ring portion and the lower outer convex ring portion. The diameter of the upper outer convex ring portion is larger than the diameter of the lower outer convex ring portion, and the upper outer convex ring portion overlaps the top of the first support and the second support.

[0018] According to the tower fan top arrangement structure of the first aspect embodiment of the present utility model, the first bracket is provided with a first inner convex semi-ring portion, the second bracket is provided with a second inner convex semi-ring portion, and the first inner convex semi-ring portion and the second inner convex semi-ring portion are engaged with the ring groove portion.

[0019] According to the tower fan top arrangement structure of the first aspect embodiment of the present invention, the bottom space of the first inner convex semi-ring portion and the second inner convex semi-ring portion accommodates the lower outer convex ring portion.

[0020] According to the first aspect of the present invention, the tower fan top arrangement structure includes a main body shell and a main body bottom shell. The main body shell is provided with an airflow outlet, and the main body bottom shell is provided with an airflow inlet. The main body shell and the main body bottom shell are joined together to form the outer shell body, and the mounting column is provided inside the main body shell.

[0021] According to the first aspect of the present invention, the tower fan top arrangement structure includes a decorative cover disposed on the top of the main body shell and the main body bottom shell. The decorative cover has a decorative top wall and a decorative inclined wall connected to the decorative top wall. The top of the decorative inclined wall is connected to the decorative top wall, and the bottom of the decorative inclined wall is disposed close to the main body shell. The main body shell is provided with a horizontally extending connecting post, and the side wall of the decorative cover is provided with a vertically extending connecting lug. The connecting post and the connecting lug are connected by screws, and the side wall of the decorative cover is snapped to the main body bottom shell.

[0022] According to the first aspect of the present invention, the tower fan top arrangement structure includes a cover disposed on the top of the decorative cover. The cover includes a first top wall that matches the decorative top wall and a first inclined wall that matches the decorative inclined wall. The first top wall is provided with a screw locking part for connecting the decorative cover, and the first inclined wall is provided with a plug-in part for connecting the decorative cover and two snap-fit ​​parts.

[0023] The outdoor tower fan according to the second aspect of the present invention includes the tower fan top arrangement structure described in any one of the above-mentioned embodiments.

[0024] The tower fan top arrangement structure according to the embodiment of this utility model has at least the following beneficial effects: This utility model, by setting up a wind turbine positioning frame, includes a circular main body and two mounting ears, thus eliminating the need for the L-shaped first and second plates. In particular, eliminating the second plate reduces the space occupied. At the same time, it lowers the position of the mounting column, leaving the top space of the wind turbine positioning frame near the main body shell empty, which facilitates the placement of a decorative cover with decorative sloping walls, thus improving the shape of the top of the tower body, without increasing the height of the tower fan.

[0025] This utility model also provides an outdoor tower fan, which has the above-mentioned beneficial effects.

[0026] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the top arrangement structure of the tower fan according to an embodiment of the present utility model; Figure 2 for Figure 1 Assembly diagram of the wind turbine support; Figure 3 for Figure 1 Another perspective on the assembly diagram of the wind turbine support; Figure 4 for Figure 1 Schematic diagram of the structure of the main body shell; Figure 5 for Figure 1 Schematic diagram of the internal structure of the decorative cover; Figure 6 for Figure 1 Schematic diagram of the connection structure between the decorative cover and the top cover; Figure 7 for Figure 1 A structural diagram of the decorative cover and the top cover from another perspective.

[0029] Reference numerals: 1. Wind turbine positioning frame; 2. Ring body; 3. Mounting ear; 4. Mounting column; 5. First bracket; 6. Second bracket; 7. First ear; 8. Second ear; 9. Positioning column; 10. Positioning hole; 11. Mounting hole; 12. Positioning rib; 13. Axial extension rib; 14. Radial extension rib; 15. Rolling bracket; 16. Upper outward convex ring; 17. Lower outward convex ring; 18. Ring groove; 19. First inward convex semi-ring; 20. Second inward convex semi-ring; 21. Main body shell; 22. Decorative cover; 23. Decorative top wall; 24. Decorative inclined wall; 25. Connecting column; 26. Connecting ear; 27. Cover; 28. First top wall; 29. ​​First inclined wall; 30. Insertion part; 31. Buckle part; 32. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, this is only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between 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.

[0034] The following description, in conjunction with the accompanying drawings, describes the top arrangement structure of the tower fan and the outdoor tower fan according to embodiments of the present invention.

[0035] Reference Figures 1 to 7 The present invention aims to provide an embodiment of a tower fan top arrangement structure, which can be part of an outdoor tower fan. Therefore, the present invention also aims to provide an embodiment of a tower fan or an outdoor tower fan, which includes a tower fan top arrangement structure.

[0036] Compared with existing technologies, the tower fan top arrangement structure of this utility model can reduce the space occupied by the wind turbine positioning frame 1 and facilitate the arrangement of other components. At the same time, by applying the above-mentioned tower fan top arrangement structure, the outdoor tower fan of this utility model can reduce the space occupied by the wind turbine positioning frame 1, facilitate the arrangement of other components, diversify the top shape of the tower fan, and avoid increasing the height of the tower fan.

[0037] Reference Figure 1 The present invention aims to provide a tower fan top arrangement structure and an embodiment of an outdoor tower fan.

[0038] In this embodiment, the tower fan includes a base and a tower body disposed on top of the base. The tower body includes a cross-flow fan, which includes an upright impeller, a motor disposed at the bottom of the impeller, and an impeller positioning frame 1 that limits the top of the impeller. The impeller positioning frame 1 is fixed to the outer shell of the tower body.

[0039] To improve the layout, the wind turbine positioning frame 1 includes a circular body 2 and two mounting ears 3 set on the circular body 2. The inner side of the circular body 2 is used to limit the top of the wind turbine. The outer shell body is provided with two mounting posts 4, and the mounting posts 4 are connected to the mounting ears 3 by screws.

[0040] This utility model, by setting up a wind turbine positioning frame 1, includes a circular main body 2 and two mounting ears 3, thus eliminating the need for the L-shaped first and second plates. In particular, the elimination of the second plate reduces the space occupied. At the same time, it lowers the position of the mounting column 4, leaving the top space of the wind turbine positioning frame 1 near the main body shell 22 empty, which facilitates the arrangement of the decorative cover 23 with decorative inclined walls 25, which helps to improve the shape of the top of the tower body, while not increasing the height of the tower fan.

[0041] Reference Figure 2 and Figure 3 In some specific embodiments of this utility model, the wind turbine positioning frame 1 may include an arc-shaped first support 5 and a second support 6, with the first support 5 and the second support 6 together forming a circular body 2 and two mounting ears 3.

[0042] It is easy to understand that by setting the first bracket 5 and the second bracket 6 in this embodiment, it is not only convenient to form a ring-shaped body, but also convenient to disassemble and replace the rolling bracket 16, so as to improve the maintainability of the tower fan. At the same time, the wear resistance can be improved by improving the material of the rolling bracket 16.

[0043] In some specific embodiments of this utility model, the first bracket 5 may be provided with a first ear 7 at both ends, and the second bracket 6 may be provided with a second ear 8 at both ends. The first ear 7 and the second ear 8 are fitted together to form a mounting ear 3.

[0044] It is easy to understand that by setting the first ear 7 and the second ear 8, the thickness of the mounting ear 3 can be increased, the connection strength can be improved, and the connection between the first bracket 5 and the second bracket 6 can be simplified, the structure can be simplified, and the manufacturing cost can be reduced. For example, the screws connecting the first ear 7 and the second ear 8 are also connected to the mounting post 4, which reduces the number of screws. At the same time, it avoids increasing the size of the mounting ear 3 in the radial direction of the annular body.

[0045] In some specific embodiments of this utility model, one of the first ear portion 7 and the second ear portion 8 may be provided with a positioning post 9, and the other of the first ear portion 7 and the second ear portion 8 may be provided with a positioning hole 10 for accommodating the positioning post 9. The positioning post 9 may be provided with a mounting hole 11 that extends through it along its axial direction, and the mounting hole 11 may be provided with a mounting screw for connecting the mounting post 4.

[0046] It is easy to understand that by setting the positioning post 9 and the positioning hole 10, this embodiment can improve the installation accuracy of the first bracket 5 and the second bracket 6, avoid the first bracket 5 and the second bracket 6 from being misaligned and creating steps, avoid the rolling bracket 16 from being tilted, and avoid affecting the rotation of the wind turbine.

[0047] The positioning post 9 is provided with a mounting hole 11 that runs through it along its axis. The mounting hole 11 is provided with a mounting screw for connecting the mounting post 4. This also makes the positioning structure and the mounting structure coincide in the vertical and horizontal directions, without increasing the height and radial dimensions of the annular body, thus occupying less space and facilitating the arrangement of other components.

[0048] In some specific embodiments of this utility model, the positioning post 9 may include a positioning tube 12 and a plurality of positioning ribs 13 disposed on the outer surface of the positioning tube 12. The positioning ribs 13 include axially extending ribs 14 located on the radial outer surface of the positioning tube 12 and radially extending ribs 15 located at the end of the positioning tube 12. The axially extending ribs 14 and the radially extending ribs 15 are integrally disposed.

[0049] It is easy to understand that, through the positioning rib 13, this embodiment also creates a gap between the positioning post 9 and the positioning hole 10, which facilitates the entry and exit of air. This makes it easier for the positioning post 9 to be inserted into the positioning hole 10 and also makes it easier for the positioning post 9 to be moved away from the positioning hole 10, which facilitates production assembly and disassembly and maintenance.

[0050] In some specific embodiments of this utility model, the second ear portion 8 may be provided with a positioning cavity for accommodating the mounting post 4 on the side opposite to the first ear portion 7.

[0051] It is easy to understand that by setting up a positioning cavity, this embodiment can also make the wind turbine positioning frame 1 accurately installed on the mounting column 4, reducing the installation error of the wind turbine positioning frame 1 in the height direction.

[0052] In some specific embodiments of this utility model, the wind turbine positioning frame 1 may further include a rolling bracket 16, which is rotatably disposed between the first bracket 5 and the second bracket 6, and the rolling bracket 16 is provided with a central hole for accommodating the top end of the wind turbine.

[0053] It is easy to understand that by setting the rolling bracket 16 in this embodiment, the rolling bracket 16 also has a complete central hole, which can well position the top of the wind turbine and make the wind turbine rotate smoothly. At the same time, the rolling bracket 16 can meet the needs of positioning and limiting the wind turbine by increasing its own height, thus meeting different usage needs from the first bracket 5 and the second bracket 6.

[0054] In some specific embodiments of this utility model, the rolling bracket 16 may include an upper outer protruding ring portion 17, a lower outer protruding ring portion 18, and an annular groove portion 19 located between the upper outer protruding ring portion 17 and the lower outer protruding ring portion 18. The diameter of the upper outer protruding ring portion 17 is larger than the diameter of the lower outer protruding ring portion 18, and the upper outer protruding ring portion 17 overlaps the top of the first bracket 5 and the second bracket 6.

[0055] It is easy to understand that by providing the upper outer convex ring 17, the lower outer convex ring 18, and the ring groove 19, this embodiment can meet the installation and positioning requirements of the rolling bracket 16 with the first bracket 5 and the second bracket 6, reduce the vertical movement of the rolling bracket 16, and improve operational stability.

[0056] In some specific embodiments of this utility model, the first bracket 5 may be provided with a first inner convex semi-ring portion 20, and the second bracket 6 may be provided with a second inner convex semi-ring portion 21. The first inner convex semi-ring portion 20 and the second inner convex semi-ring portion 21 are engaged and locked into the ring groove portion 19.

[0057] It is easy to understand that by providing the first inner convex semi-ring portion 20 and the second inner convex semi-ring portion 21 and engaging them with the ring groove portion 19, this embodiment can prevent the rolling bracket 16 from moving upward and reduce the risk of the rolling bracket 16 coming off.

[0058] In some specific embodiments of this utility model, the bottom space of the first inner convex semi-ring portion 20 and the second inner convex semi-ring portion 21 can accommodate the lower outer convex ring portion 18.

[0059] It is easy to understand that the bottom space of the first inner convex semi-ring portion 20 and the second inner convex semi-ring portion 21 accommodates the lower outer convex ring portion 18, and also makes the bottom edge of the rolling bracket 16 aligned with the bottom edge of the first bracket 5 and the second bracket 6. The structure is simple and reasonable, makes full use of space, and helps to reduce the height dimension.

[0060] Reference Figure 1 and Figure 4 The tower body includes a main shell 22 and a main bottom shell. The main shell 22 is provided with an airflow outlet, and the main bottom shell is provided with an airflow inlet. The main shell 22 and the main bottom shell are joined together to form the outer shell body. The main shell 22 is provided with an installation column 4 inside.

[0061] It is easy to understand that by setting the mounting column 4 on the main body shell 22, this embodiment can adapt to the situation where the main body shell 22 is disassembled and assembled less frequently while the main body bottom shell is disassembled and assembled more frequently, thus avoiding the risk of damage caused by frequent disassembly and assembly of the wind turbine bracket.

[0062] Reference Figure 5 , Figure 6 and Figure 7 The tower body includes a decorative cover 23 disposed on the top of the main body shell 22 and the main body bottom shell. The decorative cover 23 has a decorative top wall 24 and a decorative inclined wall 25 connected to the decorative top wall 24. The top of the decorative inclined wall 25 is connected to the decorative top wall 24, and the bottom of the decorative inclined wall 25 is disposed close to the main body shell 22.

[0063] It is easy to understand that, by providing the decorative cover 23, this embodiment also facilitates the arrangement of the tower fan's circuit board. Furthermore, by providing the decorative top wall 24 and the decorative sloping wall 25, the top of the tower fan has… Figure 7 The shape and arrangement of the tower fan make it easy for users to operate and observe. For example, the decorative sloping wall 25 is equipped with status lights and control buttons that are easy to observe, so that users do not need to get closer to the tower fan, or so that users can know the status of the tower fan from a distance, and it is also convenient to use remote control to control the tower fan.

[0064] In some specific embodiments of this utility model, the main body shell 22 may be provided with a horizontally extending connecting post 26, and the side wall of the decorative cover 23 may be provided with a vertically extending connecting ear 27. The connecting post 26 and the connecting ear 27 are connected by screws, and the side wall of the decorative cover 23 is snapped to the main body bottom shell.

[0065] It is easy to understand that in this embodiment, the connecting post 26 and the connecting ear 27 form a horizontal limiting fixation, and the side wall of the decorative cover 23 is snapped to the bottom shell of the main body to form a vertical limiting fixation, which can meet the installation and fixing needs without affecting the disassembly and assembly of the bottom shell of the main body.

[0066] At the same time, it also helps to reduce the number of screws used and lower manufacturing costs.

[0067] In some specific embodiments of this utility model, the tower body may include a face cover 28 disposed on the top of the decorative cover 23. The face cover 28 includes a first top wall 29 that matches the decorative top wall 24 and a first inclined wall 30 that matches the decorative inclined wall 25. The first top wall 29 is provided with a screw locking part for connecting the decorative cover 23, and the first inclined wall 30 is provided with a plug-in part 31 for connecting the decorative cover 23 and two snap-fit ​​parts 32.

[0068] It is easy to understand that, by providing the plug-in part 31, this embodiment also facilitates the positioning and connection of the face cover 28 and the decorative cover 23, while providing the snap-fit ​​part 32 can evenly connect the decorative cover 23 and reduce the risk of the face cover 28 lifting up.

[0069] The screw locking part can reduce the gap between the cover 28 and the decorative cover 23, so that the cover 28 fits the decorative cover 23.

[0070] Moreover, the screw locking part, the insertion part 31 and the two snap-fit ​​parts 32 cooperate with each other to fix the cover 28 tightly to the decorative cover 23, reducing gaps. At the same time, it reduces the use of screws and overcomes the defect that the cover 28 is too deformed and difficult to fit the decorative cover 23 when it has the first top wall 29 and the first inclined wall 30.

[0071] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0072] The terms "first," "second," "third," "fourth," etc. (if applicable) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein.

[0073] It should also be noted that, in the description of this specification, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0074] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may also include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products, or apparatus.

[0075] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0076] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A structure for arranging the top of a tower fan, characterized in that, The tower fan includes a base and a tower body set on top of the base. The tower body includes a cross-flow fan. The cross-flow fan includes a vertical impeller, a motor set at the bottom of the impeller, and an impeller positioning frame (1) that limits the top of the impeller. The impeller positioning frame (1) is fixed to the outer shell of the tower body. The impeller positioning frame (1) includes a circular body (2) and two mounting ears (3) set on the circular body (2). The inner side of the circular body (2) is used to limit the top of the impeller. The outer shell is provided with two mounting posts (4). The mounting posts (4) are connected to the mounting ears (3) by screws.

2. The tower fan top arrangement structure according to claim 1, characterized in that: The wind turbine positioning frame (1) includes an arc-shaped first bracket (5) and a second bracket (6), which together form the annular body (2) and the two mounting ears (3).

3. The tower fan top arrangement structure according to claim 2, characterized in that: The first bracket (5) has a first ear (7) at both ends, and the second bracket (6) has a second ear (8) at both ends. The first ear (7) and the second ear (8) fit together to form a mounting ear (3).

4. The tower fan top arrangement structure according to claim 3, characterized in that: One of the first ear (7) and the second ear (8) is provided with a positioning post (9), and the other of the first ear (7) and the second ear (8) is provided with a positioning hole (10) for accommodating the positioning post (9). The positioning post (9) is provided with a mounting hole (11) that extends through it along its axial direction. The mounting hole (11) is provided with a mounting screw for connecting the mounting post (4).

5. The tower fan top arrangement structure according to claim 4, characterized in that: The positioning post (9) includes a positioning tube (12) and a plurality of positioning ribs (13) disposed on the outer surface of the positioning tube (12). The positioning ribs (13) include axially extending ribs (14) located on the radial outer surface of the positioning tube (12) and radially extending ribs (15) located at the end of the positioning tube (12). The axially extending ribs (14) and the radially extending ribs (15) are integrally disposed. And / or, the second ear (8) is provided with a positioning cavity for accommodating the mounting post (4) on the side opposite to the first ear (7).

6. The tower fan top arrangement structure according to claim 2, characterized in that: The wind turbine positioning frame (1) further includes a rolling bracket (16), which is rotatably disposed between the first bracket (5) and the second bracket (6), and the rolling bracket (16) is provided with a central hole for accommodating the top end of the wind turbine; The rolling support (16) includes an upper outer protruding ring (17), a lower outer protruding ring (18), and an annular groove (19) located between the upper outer protruding ring (17) and the lower outer protruding ring (18). The diameter of the upper outer protruding ring (17) is larger than the diameter of the lower outer protruding ring (18), and the upper outer protruding ring (17) overlaps the top of the first support (5) and the second support (6). The first bracket (5) is provided with a first inner convex semi-ring portion (20), and the second bracket (6) is provided with a second inner convex semi-ring portion (21). The first inner convex semi-ring portion (20) and the second inner convex semi-ring portion (21) are engaged with the annular groove portion (19). The bottom space of the first inner convex semi-ring portion (20) and the second inner convex semi-ring portion (21) accommodates the lower outer convex ring portion (18).

7. The tower fan top arrangement structure according to claim 1, characterized in that: The tower body includes a main shell (22) and a main bottom shell. The main shell (22) is provided with an airflow outlet, and the main bottom shell is provided with an airflow inlet. The main shell (22) and the main bottom shell together form the outer shell body. The mounting column (4) is provided inside the main shell (22).

8. The tower fan top arrangement structure according to claim 7, characterized in that: The tower body includes a decorative cover (23) disposed on the top of the main body shell (22) and the main body bottom shell. The decorative cover (23) has a decorative top wall (24) and a decorative inclined wall (25) connecting the decorative top wall (24). The top of the decorative inclined wall (25) is connected to the decorative top wall (24), and the bottom of the decorative inclined wall (25) is disposed close to the main body shell (22). The main body shell (22) is provided with a horizontally extending connecting post (26), and the side wall of the decorative cover (23) is provided with a vertically extending connecting ear (27). The connecting post (26) and the connecting ear (27) are connected by screws, and the side wall of the decorative cover (23) is snapped to the main body bottom shell.

9. The tower fan top arrangement structure according to claim 8, characterized in that: The tower body includes a face cover (28) disposed on the top of the decorative cover (23). The face cover (28) includes a first top wall (29) that matches the decorative top wall (24) and a first inclined wall (30) that matches the decorative inclined wall (25). The first top wall (29) is provided with a screw locking part for connecting the decorative cover (23), and the first inclined wall (30) is provided with a plug-in part (31) for connecting the decorative cover (23) and two snap-fit ​​parts (32).

10. An outdoor tower fan, characterized in that: Includes the tower fan top arrangement structure as described in any one of claims 1 to 9.

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