A tower fan

Abstract

The utility model discloses a tower fan, aims at providing a tower fan that can adjust the air up and down, it includes the casing, and the side of casing is equipped with the air inlet, and the opposite side of casing is equipped with the air outlet, fan assembly can be dismantled and installed in the casing, and respectively with air inlet and air outlet correspond, back net cover, buckle connection in the air inlet place, up and down air adjusting assembly can be dismantled and connected in the air outlet place, is used for up and down regulation air direction, operating panel, fixed in the top of casing, and operating panel is electrically connected with fan assembly, base, can be dismantled and connected in the bottom of casing outside, power box, can be dismantled and connected in the bottom of casing, and power box is electrically connected with operating panel, power cord, fixed in the casing outside, and is electrically connected with power box, the utility model has the beneficial effect that: up and down air adjusting assembly carries out the adjustment to the wind in the air outlet place in the up and down direction, reaches the purpose that can adjust the air up and down.

Description

Technical Field

[0001] This utility model relates to the technical field of tower fans, and in particular to a tower fan. Background Technology

[0002] In the current field of fan technology, tower fans, as a common household appliance, are favored by consumers for their unique design and excellent airflow performance. Tower fans "throw" air out through a cross-flow fan, creating airflow—this airflow is generated by the rotation of the impeller, creating centrifugal force, which is then transmitted through the internal air guide walls. Because the cross-flow impeller is generally cylindrical, tower fans create a three-dimensional airflow wall, or "air curtain," which is perpendicular to the ground and oscillates left and right. Furthermore, the cross-flow impeller has many blades, resulting in a uniform and gentle airflow that closely resembles natural wind.

[0003] Currently, tower fans still have some problems in use. For example, tower fans can only swing left and right to deliver air horizontally, and cannot adjust the airflow up and down, resulting in poor practicality and failing to provide users with a good user experience. The base is not easy to disassemble, takes up a lot of space, and makes storage inconvenient. The air inlet of the tower fan cannot be disassembled, making it impossible for users to clean the dust in the air inlet and inside. Utility Model Content

[0004] The present invention aims to overcome the shortcomings of existing tower fans that cannot adjust the airflow vertically, and provides a tower fan that can adjust the airflow vertically.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tower fan, comprising:

[0007] The housing has an air inlet on one side and an air outlet on the corresponding other side.

[0008] The fan assembly is detachably installed inside the housing and corresponds to the air inlet and air outlet respectively;

[0009] The rear mesh cover is snapped together at the air inlet.

[0010] The vertical air adjustment component is detachably connected to the air outlet and is used to adjust the air outlet direction vertically.

[0011] An operation panel is fixed to the top of the housing and is electrically connected to the fan assembly;

[0012] The base is detachably connected to the bottom of the housing.

[0013] A power supply box is detachably connected to the bottom of the housing, and the power supply box is electrically connected to the operation panel;

[0014] The power cord is fixed to the outside of the housing and electrically connected to the power supply box.

[0015] The rear grille is easy to remove and install, making it convenient to clean the dust at the air inlet and inside; the base is installed on the housing in a detachable connection, making it easy to store when not in use and saving space; the up and down air adjustment component adjusts the airflow at the air outlet in the up and down direction, achieving the purpose of up and down air adjustment.

[0016] Preferably, the opposite side of the housing is an air outlet surface, and the air outlet is located on the air outlet surface. Several grid plates, evenly distributed along the circumference of the housing, are protruding and fixed on the air outlet surface. Some of the grid plates pass through the air outlet to form an air outlet grid. The grid plates help to improve the strength of the housing; at the same time, they help to improve the safety of the air outlet and the uniformity of the airflow.

[0017] Preferably, the upper and lower air regulating assembly includes a connecting rod, a rectangular pressure frame, two fixed pressure plates, and several blades. The blades are evenly distributed at intervals along the height direction of the housing. Both ends of each blade are fixed with a rotating plate to form a U-shaped structure. A rotating shaft is fixedly protruding from the outer side of the rotating plate. The two fixed pressure plates are located on the left and right sides of the air outlet, respectively. One side of the fixed pressure plate is embedded between two corresponding grille plates. The corresponding edge of the other side of the fixed pressure plate is provided with several U-shaped grooves that match the rotating shafts on the blades. The blades are connected to the U-shaped grooves through the rotating shafts with damping rotation. The left and right sides of the rectangular pressure frame are provided with limiting grooves that match the two fixed pressure plates. The rectangular pressure frame is snapped to the edge of the air outlet. The blades are all located inside the rectangular pressure frame. The connecting rod is located inside the air outlet. The connecting rod is rotatably connected to the inner side of the rotating plate at any end of one of the blades. The connecting rod is located at one end of the rotating plate and away from the blade. The rotating shaft is located at the other end of the rotating plate and close to the blade. Users can adjust the airflow at the outlet by rotating one blade up or down, causing the remaining blades to rotate synchronously at a certain angle via a connecting rod. The adjustment operation is simple. The blades are connected to the U-shaped grooves via rotating shafts, allowing the blades to be positioned after being rotated at any angle by external force. During installation, several blades are first inserted into the corresponding rotating holes of the connecting rod through the rotating shafts on the inner side of their rotating plates. This allows the connecting rods to be rotatably connected to the inner side of the rotating plate at any end of each blade. This rotatable connection structure is existing technology and will not be described in detail here. Then, the two ends of several blades are respectively inserted into the corresponding U-shaped grooves through the corresponding rotating shafts on the outer side of the rotating plate and connected to two fixed pressure plates. Next, several blades are placed at the air outlet, and the two fixed pressure plates are respectively embedded between the two corresponding grille plates on the left and right sides of the air outlet. Finally, a rectangular pressure frame is installed, so that the fixed pressure plates are confined within the limiting grooves. The rectangular pressure frame is snapped into the air outlet, making the installation and disassembly of the up and down air adjustment assembly convenient and quick, and can be selected according to the size of the air outlet.

[0018] Preferably, the bottom of the housing is provided with a steering assembly, which includes a steering motor electrically connected to the operation panel. A fixed base is provided inside the bottom of the housing, and the fixed base is detachably fixed to the housing. The steering motor is suspended and fixed above the fixed base, forming a gap between them. The steering motor is located below the power supply box, and the fan assembly is located above the power supply box. A turntable is provided on the lower side of the fixed base, and the turntable is coaxially rotatably connected to the fixed base. A vertical shaft is vertically provided on the top of the turntable. The fixed base is provided with... A vertical shaft has a matching arc-shaped through-hole, the center of which is located at the rotation center of the turntable. The bottom end of the vertical shaft is fixedly connected to the turntable, and the top end of the vertical shaft is equipped with a connecting rod. A crankshaft is provided on the output end of the steering motor, one end of which is detachably and fixedly connected to the output end of the steering motor. The top end of the vertical shaft passes through the arc-shaped through-hole and is rotatably connected to the other end of the crankshaft via the connecting rod. Both the connecting rod and the crankshaft are located within a gap. The bottom of the housing has a steering hole that matches the turntable, and the bottom of the turntable passes through the steering hole and is detachably connected to the base. When the steering motor is working, the power output of the crankshaft and connecting rod drives the housing to swing left and right within a certain angle range (approximately 90 degrees) under the limitation of the arc-shaped through-hole, thereby achieving horizontal adjustment of the wind direction.

[0019] Preferably, the turntable has a protruding external threaded post at its bottom center, and the base has a mounting groove at its top center that matches the bottom of the turntable. The bottom of the mounting groove has a through hole that matches the external threaded post. One end of the external threaded post is fixedly connected to the bottom of the turntable, and the other end of the external threaded post passes through the through hole and is located inside the bottom of the base, where it is threaded with a locking nut. The base is locked in place by the locking nut, facilitating its installation and removal, and allowing for convenient storage when not in use without taking up much space.

[0020] Preferably, the fan assembly includes a fan wheel and a duct. The fan wheel is installed inside the duct, and both ends of the duct are detachably connected to the housing. The fan wheel is connected to the air inlet through one side of the duct, and to the air outlet through the corresponding side of the duct. A drive motor is detachably connected to the bottom of the duct, and the output end of the drive motor is detachably fixed to one end of the fan wheel. The other end of the fan wheel is rotatably connected to the top of the duct. The drive motor is electrically connected to the control panel. The duct structure is a common technology for tower fans and will not be described in detail here. The fan wheel is connected to the air inlet through one side of the duct, which facilitates air intake under the drive of the motor. Simultaneously, the user can clean the dust on the air inlet and fan wheel by removing the rear mesh cover.

[0021] Preferably, the top side of the housing has a display screen electrically connected to the control panel, and the other side of the top of the housing has a storage slot. The storage slot can hold items such as remote controls to prevent loss when the device is not in use for the season.

[0022] The beneficial effects of this utility model are:

[0023] 1. The base is detachably attached to the housing, making it easy to store when not in use and saving space;

[0024] 2. The vertical air adjustment component adjusts the airflow at the air outlet in the vertical direction, achieving the purpose of vertical air adjustment. It is easy and quick to install and disassemble, and can be selected according to the size of the air outlet.

[0025] 3. When the steering motor is working, the power output through the crankshaft and connecting rod drives the housing to swing left and right within a certain angle range under the limit of the arc-shaped through hole, so as to realize the horizontal adjustment of the wind direction;

[0026] 4. Users can clean the dust on the air inlet and impeller by removing the rear mesh cover. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is an exploded view of this utility model;

[0029] Figure 3 This is the front view of this utility model;

[0030] Figure 4 This is an exploded view of the vertical air conditioning unit;

[0031] Figure 5 This is a schematic diagram of the internal structure of this utility model;

[0032] Figure 6 yes Figure 5 Enlarged view of the structure at point A in the middle;

[0033] Figure 7 yes Figure 3 Sectional view of BB;

[0034] Figure 8 yes Figure 7 Enlarged view of the structure at point C.

[0035] In the diagram: 1. Housing, 2. Air inlet, 3. Air outlet, 4. Fan assembly, 5. Rear grille, 6. Upper and lower air adjustment assembly, 7. Control panel, 8. Base, 9. Power supply box, 10. Grille plate, 11. Connecting rod, 12. Rectangular pressure frame, 13. Fixed pressure plate, 14. Blade, 15. Rotating plate, 16. Shaft, 17. U-shaped groove, 18. Limiting groove, 19. Steering motor, 20. Fixed base, 21. Turntable, 22. Vertical shaft, 23. Arc-shaped through hole, 24. Connecting rod, 25. Crankshaft, 26. Steering hole, 27. External threaded column, 28. Mounting groove, 29. Through hole, 30. Locking nut, 31. Impeller, 32. Air duct, 33. Drive motor, 34. Display screen, 35. Storage slots. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0037] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0038] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of components illustrated in these embodiments do not limit the scope of this application. For ease of illustration, spatial relative terms such as “upper,” “lower,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “below” other elements or features would be fixed “upper” to other elements or features. Thus, the exemplary term “lower” can include both upper and lower orientations. The device may be fixed in other ways (rotated 90 degrees or located in other orientations), and the spatial relative descriptions used herein can be interpreted accordingly. It should also be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale. Techniques, processes, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, processes, and equipment should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be discussed further in subsequent figures.

[0039] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0040] like Figure 1 , Figure 2 and Figure 3 In the described embodiment, a tower fan includes a housing 1, with an air inlet 2 on one side and an air outlet 3 on the corresponding side; a fan assembly 4, detachably installed inside the housing 1 and corresponding to the air inlet 2 and the air outlet 3 respectively; a rear mesh cover 5, snapped onto the air inlet 2; an up-and-down air adjustment assembly 6, detachably connected to the air outlet 3 for adjusting the airflow direction up and down; an operation panel 7, fixed to the top of the housing 1 and electrically connected to the fan assembly 4; a base 8, detachably connected to the bottom of the housing 1; a power supply box 9, detachably connected to the bottom of the housing 1 and electrically connected to the operation panel 7; and a power cord, fixed to the outside of the housing 1 and electrically connected to the power supply box 9.

[0041] The opposite side of the housing 1 is the air outlet surface. The air outlet 3 is located on the air outlet surface. Several grid plates 10 are fixedly protruding from the air outlet surface and evenly distributed around the circumference of the housing 1. Some of the grid plates 10 pass through the air outlet 3 to form an air outlet grid.

[0042] like Figure 2 , Figure 3 and Figure 4 As shown, the upper and lower air regulating assembly 6 includes a connecting rod 11, a rectangular pressure frame 12, two fixed pressure plates 13, and several blades 14. The blades 14 are evenly distributed at intervals along the height direction of the housing 1. Both ends of the blades 14 are fixed with rotating plates 15 to form a U-shaped structure. A rotating shaft 16 is fixedly fixed to the outer side of the rotating plate 15. The two fixed pressure plates 13 are located on the left and right sides of the air outlet 3, respectively. One side of the fixed pressure plate 13 is embedded between two corresponding grille plates 10. The other side edge of the fixed pressure plate 13 is provided with several rotating shafts 16 that correspond one-to-one with the rotating shafts 16 on the blades 14. The matching U-shaped groove 17, the blade 14 is connected to the U-shaped groove 17 by the rotating shaft 16 with damping rotation. The left and right sides of the rectangular pressure frame 12 are provided with limiting grooves 18 that match the two fixed pressure plates 13 one by one. The rectangular pressure frame 12 is snapped to the edge of the air outlet 3. Several blades 14 are located inside the rectangular pressure frame 12. The connecting rod 11 is located inside the air outlet 3. The connecting rod 11 is rotatably connected to the inner side of the rotating plate 15 at any end of several blades 14. The connecting rod 11 is located at one end of the rotating plate 15 and away from the blades 14. The rotating shaft 16 is located at the other end of the rotating plate 15 and close to the blades 14.

[0043] like Figure 2 , Figure 5 and Figure 6As shown, a steering assembly is provided at the bottom of the housing 1. The steering assembly includes a steering motor 19, which is electrically connected to the operation panel 7. A fixing seat 20 is provided inside the bottom of the housing 1, and the fixing seat 20 is detachably fixed to the housing 1. The steering motor 19 is suspended and fixed on the upper side of the fixing seat 20, forming a gap between them. The steering motor 19 is located below the power supply box 9, and the fan assembly 4 is located above the power supply box 9. A turntable 21 is provided on the lower side of the fixing seat 20, and the turntable 21 is coaxially rotatably connected to the fixing seat 20. A vertical shaft 22 is vertically provided on the top of the turntable 21, and the fixing seat 20 is equipped with a shaft matching the vertical shaft 22. An arc-shaped through hole 23 is provided, with the center of the arc located at the rotation center of the turntable 21. The bottom end of the vertical shaft 22 is fixedly connected to the turntable 21, and the top end of the vertical shaft 22 is provided with a connecting rod 24. A crankshaft 25 is provided on the output end of the steering motor 19. One end of the crankshaft 25 is detachably and fixedly connected to the output end of the steering motor 19. The top end of the vertical shaft 22 passes through the arc-shaped through hole 23 and is rotatably connected to the other end of the crankshaft 25 through the connecting rod 24. The connecting rod 24 and the crankshaft 25 are both located within the gap. The bottom of the housing 1 is provided with a steering hole 26 that matches the turntable 21. The bottom of the turntable 21 passes through the steering hole 26 and is detachably connected to the base 8.

[0044] like Figure 7 and Figure 8 As shown, the bottom center of the turntable 21 is provided with an external threaded post 27, and the top center of the base 8 is provided with a mounting groove 28 that matches the bottom of the turntable 21. The bottom of the mounting groove 28 is provided with a through hole 29 that matches the external threaded post 27. One end of the external threaded post 27 is fixedly connected to the bottom of the turntable 21, and the other end of the external threaded post 27 passes through the through hole 29 and is located inside the bottom of the base 8 and is threadedly connected with a locking nut 30.

[0045] like Figure 2 As shown, the fan assembly 4 includes a fan wheel 31 and a duct 32. The fan wheel 31 is installed inside the duct 32. Both the upper and lower ends of the duct 32 are detachably connected to the housing 1. The fan wheel 31 is connected to the air inlet 2 through one side of the duct 32, and the fan wheel 31 is connected to the air outlet 3 through the corresponding other side of the duct 32. The bottom end of the duct 32 is detachably connected to a drive motor 33. The output end of the drive motor 33 is detachably and fixedly connected to one end of the fan wheel 31, and the other end of the fan wheel 31 is rotatably connected to the top end of the duct 32. The drive motor 33 is electrically connected to the operation panel 7.

[0046] like Figure 7 As shown, a display screen 34 electrically connected to the operation panel 7 is provided on one side of the top of the housing 1, and a storage slot 35 is provided on the other side of the top of the housing 1.

[0047] The user can adjust the airflow at the air outlet 3 by rotating one of the blades 14 up and down, causing it to drive the other blades 14 to rotate synchronously by a certain angle via the connecting rod 11. The adjustment operation is simple. The blade 14 is connected to the U-shaped groove 17 via the rotating shaft 16 for damping rotation, which allows the blade 14 to be positioned after being rotated at any angle by external force. During installation, several blades 14 are first inserted into the corresponding rotating holes of the connecting rod 11 through the rotating shaft on the inner side of their rotating plate 15. This allows the connecting rod 11 to be rotatably connected to the inner side of the rotating plate 15 at any end of several blades 14. The structure is existing technology, so it will not be described in detail here; then, the two ends of several blades 14 are respectively inserted into the corresponding U-shaped grooves 17 through the corresponding rotating shafts 16 on the outside of the rotating plate 15 and connected to the two fixed pressure plates 13 respectively; then, several blades 14 are placed at the air outlet 3, and the two fixed pressure plates 13 are respectively embedded between the two corresponding grille plates 10 on the left and right sides of the air outlet 3; finally, the rectangular pressure frame 12 is installed so that the fixed pressure plate 13 is limited in the limiting groove 18. The rectangular pressure frame 12 is snapped to the air outlet 3, so that the upper and lower air regulating components 6 are easy and quick to install and disassemble, and can be selected according to the size of the air outlet 3.

[0048] When the steering motor 19 is working, the power output through the crankshaft 25 and connecting rod 24 drives the housing 1 to swing left and right within a certain angle range (about 90 degrees) under the limit of the arc-shaped through hole 23, so as to realize the horizontal adjustment of the wind direction.

[0049] The rear cover 5 is installed at the air inlet 2 by means of a snap-fit ​​connection, which makes it easy to clean the dust on the air inlet 2 and the impeller 31.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tower fan, characterized in that, include: The housing (1) has an air inlet (2) on one side and an air outlet (3) on the other side of the housing (1). The fan assembly (4) is detachably installed inside the housing (1) and corresponds to the air inlet (2) and the air outlet (3) respectively; The rear mesh cover (5) is snapped to the air inlet (2); The up-and-down air adjustment component (6) is detachably connected to the air outlet (3) and is used to adjust the air outlet direction up and down; The operation panel (7) is fixed to the top of the housing (1) and is electrically connected to the fan assembly (4); The base (8) is detachably connected to the bottom of the housing (1); The power supply box (9) is detachably connected to the bottom of the housing (1), and the power supply box (9) is electrically connected to the operation panel (7); The power cord is fixed outside the housing (1) and electrically connected to the power supply box (9).

2. A tower fan according to claim 1, characterized in that, The other side of the housing (1) is the air outlet surface. The air outlet (3) is located on the air outlet surface. Several grid plates (10) are fixedly protruding on the air outlet surface and evenly distributed around the circumference of the housing (1). Some of the grid plates (10) pass through the air outlet (3) to form an air outlet grid.

3. A tower fan according to claim 2, characterized in that, The upper and lower air regulating assembly (6) includes a connecting rod (11), a rectangular pressure frame (12), two fixed pressure plates (13), and several blades (14). The several blades (14) are evenly distributed at intervals along the height direction of the housing (1). Both ends of the blades (14) are fixed with rotating plates (15) to form a U-shaped structure. The outer side of the rotating plate (15) is fixed with a rotating shaft (16). The two fixed pressure plates (13) are located on the left and right sides of the air outlet (3), respectively. One side of the fixed pressure plate (13) is embedded between two corresponding grille plates (10). The other side edge of the fixed pressure plate (13) is provided with several U-shaped grooves that match the rotating shafts (16) on the blades (14). 17), the blade (14) is connected to the U-shaped groove (17) by a rotating shaft (16) for damping rotation. The rectangular pressure frame (12) has a limiting groove (18) on both the left and right sides that matches the two fixed pressure plates (13). The rectangular pressure frame (12) is snapped to the edge of the air outlet (3). Several blades (14) are located inside the rectangular pressure frame (12). The connecting rod (11) is located inside the air outlet (3). The connecting rod (11) is rotatably connected to the inner side of the rotating plate (15) at any end of several blades (14). The connecting rod (11) is located at one end of the rotating plate (15) and away from the blade (14). The rotating shaft (16) is located at the other end of the rotating plate (15) and close to the blade (14).

4. A tower fan according to claim 1, characterized in that, The bottom of the housing (1) is provided with a steering assembly, which includes a steering motor (19). The steering motor (19) is electrically connected to the operation panel (7). The bottom of the housing (1) is provided with a fixed seat (20). The fixed seat (20) is detachably fixed to the housing (1). The steering motor (19) is suspended and fixed on the upper side of the fixed seat (20) and forms a gap with the fixed seat (20). The steering motor (19) is located below the power supply box (9). The fan assembly (4) is located above the power supply box (9). The lower side of the fixed seat (20) is provided with a turntable (21). The turntable (21) is coaxially rotatably connected to the fixed seat (20). The top of the turntable (21) is vertically provided with a vertical shaft (22). The fixed seat (20) is provided with a shaft that matches the vertical shaft (22). The arc-shaped through hole (23) is located at the rotation center of the turntable (21). The bottom end of the vertical shaft (22) is fixedly connected to the turntable (21). The top end of the vertical shaft (22) is provided with a connecting rod (24). The output end of the steering motor (19) is provided with a crankshaft (25). One end of the crankshaft (25) is detachably fixedly connected to the output end of the steering motor (19). The top end of the vertical shaft (22) passes through the arc-shaped through hole (23) and is rotatably connected to the other end of the crankshaft (25) through the connecting rod (24). The connecting rod (24) and the crankshaft (25) are both located in the gap. The bottom of the housing (1) is provided with a steering hole (26) that matches the turntable (21). The bottom of the turntable (21) passes through the steering hole (26) and is detachably connected to the base (8).

5. A tower fan according to claim 4, characterized in that, The turntable (21) has an external threaded post (27) protruding from the bottom center. The base (8) has a mounting groove (28) at the top center that matches the bottom of the turntable (21). The bottom of the mounting groove (28) has a through hole (29) that matches the external threaded post (27). One end of the external threaded post (27) is fixedly connected to the bottom of the turntable (21). The other end of the external threaded post (27) passes through the through hole (29) and is located inside the bottom of the base (8) and is threadedly connected to a locking nut (30).

6. A tower fan according to claim 1, 2, 3, 4, or 5, characterized in that, The fan assembly (4) includes a fan wheel (31) and a duct (32). The fan wheel (31) is installed in the duct (32). Both the upper and lower ends of the duct (32) are detachably connected to the housing (1). The fan wheel (31) is connected to the air inlet (2) through one side of the duct (32). The fan wheel (31) is connected to the air outlet (3) through the corresponding other side of the duct (32). The bottom end of the duct (32) is detachably connected to a drive motor (33). The output end of the drive motor (33) is detachably fixedly connected to one end of the fan wheel (31). The other end of the fan wheel (31) is rotatably connected to the top end of the duct (32). The drive motor (33) is electrically connected to the operation panel (7).

7. A tower fan according to claim 1, characterized in that, The top side of the housing (1) is provided with a display screen (34) electrically connected to the operation panel (7), and the other side of the top of the housing (1) is provided with a storage slot (35).

Images