Multifunctional multi-head electric fan

Abstract

The utility model discloses a multifunctional multi-head electric fan which comprises a vertical supporting machine body (1), a plurality of fan head installation holes (a) which are arranged in a left-right staggered mode are formed in the vertical supporting machine body (1), a fan head (2) is installed at each fan head installation hole (a), and the upper end and the lower end of each fan head (2) are respectively provided with a left-right swing head assembly (3). The left-right swing head assembly (3) is rotationally connected with the corresponding inner side face of the fan head installation hole (a) and used for controlling left-right swing of the fan head (2). The two or more fan heads are arranged on the vertical supporting machine body, meanwhile, the left-right swing head assembly is installed on each fan head, the angles of the left-right swing head assembly of each fan head are controlled respectively, control over multiple air outlet directions is achieved, a user can experience incoming air in the multiple air outlet directions, the stereoscopic impression is high, and the user experience is improved. And the blowing range is larger.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, specifically to a multi-functional multi-head electric fan. Background Technology

[0002] Electric fans are common household appliances. Most electric fans are single-head fans. The limitation of single-head fans is that they can only blow air in one direction. Even some electric fans with oscillation function cannot blow air in multiple directions at the same time.

[0003] The dual-head or multi-head fans that have appeared on the market only increase the airflow area in the same direction, and cannot blow air in multiple directions at the same time. Moreover, existing multi-head fans cannot work independently, which leads to resource waste when the required airflow is small and also results in a poor user experience. Utility Model Content

[0004] To address the aforementioned technical problems and improve the user experience, this utility model provides a multi-functional multi-head electric fan, which solves the problem that existing technologies cannot blow air in multiple directions simultaneously, thereby increasing usage scenarios and improving the user experience.

[0005] The technical solution adopted is as follows:

[0006] A multi-functional multi-head electric fan includes a vertical support body with multiple fan head mounting holes arranged in a staggered manner. A fan head is installed at each fan head mounting hole. A left and right oscillating head assembly is installed at the upper and lower ends of the fan head. The left and right oscillating head assembly is rotatably connected to the corresponding inner surface of the fan head mounting hole to control the left and right oscillation of the fan head.

[0007] Preferably, the left and right oscillating head assembly includes a fixed bushing and a rotating bushing I. The fixed bushing is installed inside the fan head mounting hole and is fixedly connected to the vertical support body. One end of the rotating bushing I is fixedly connected to the fan head, and the other end is fitted into the fixed bushing, forming a relative rotational connection between the two.

[0008] Furthermore, the left and right swaying head assembly also includes a drive motor and a pinion. The pinion is connected to the drive shaft of the drive motor. An internal gear is provided on the inner side of the rotating bushing I connected to the upper end of the fan head. The pinion and the internal gear form a meshing transmission connection. The drive motor is fixed on the vertical support body.

[0009] Furthermore, the rotating bushing I is provided with a positioning post, and the fixed bushing corresponding to the positioning post is provided with an arc-shaped positioning groove, and the positioning post extends into the arc-shaped positioning groove. When the rotating bushing I is rotated, the positioning post slides relative to the arc-shaped positioning groove.

[0010] Preferably, the fan head includes a fan body assembly, a rotating ring, and a decorative ring. The fan body assembly is fixed to the inner ring surface of the rotating ring. Up-and-down swinging components are provided at two opposite positions on the outer ring surface of the rotating ring. The up-and-down swinging components are rotatably connected to the inner ring surface of the decorative ring. The rotating bushing I is fixed to the decorative ring.

[0011] Preferably, the up-and-down swing assembly is respectively installed on the left and right ends of the rotating ring to control the up-and-down swing of the fan assembly; the up-and-down swing assembly includes a rotating bushing II, one end of which is fixed to the rotating ring, and the other end of which is rotatably connected to the inner side of the decorative ring.

[0012] Furthermore, the up-and-down swing assembly also includes a positioning plate, a positioning pin, and a spring. A positioning blind hole is provided on the end face of the rotating bushing II located at one end of the rotating ring. The spring is placed in the positioning blind hole, and one end of the positioning pin is pressed into the spring. The positioning plate is fixed to the inner side of the decorative ring by a fastening connector. The positioning plate is provided with multiple positioning holes, and the positioning holes are arranged opposite to the positioning blind holes on the rotating bushing II. One end of the positioning pin is pressed against the positioning hole under the elastic force of the spring.

[0013] More preferably, the vertical support body has a flat structure, which includes a front shell, a rear shell, an upper cover and a base. The front shell and the rear shell are detachably fastened together. The upper cover is fastened to the top of the front shell and the rear shell. The base is connected to the lower end of the fastened front shell and the rear shell. The flat surface of the vertical support body is provided with at least two fan head mounting holes located at different heights and staggered left and right.

[0014] The technical solution of this utility model has the following advantages:

[0015] A. This utility model has two or more fan heads on a vertical support body, and each fan head is equipped with a left and right oscillating component. By controlling the angle of the left and right oscillating component of each fan head, multiple air outlet directions can be controlled, allowing users to experience airflow from multiple directions, creating a strong three-dimensional effect and a wider airflow range.

[0016] B. This utility model automatically swings the fan head left and right by setting an automatic left and right swinging component. The vertical airflow direction can also be manually adjusted by using the up and down swinging component. By combining horizontal airflow and multi-angle vertical airflow, the user's usage scenarios are more diversified. One fan head can be selected to work, or two or more fan heads can be selected to work simultaneously. The airflow direction of each fan head can be selected in the horizontal and vertical directions according to the user's needs, realizing simultaneous airflow in multiple directions and greatly improving the practicality of the product.

[0017] C. This utility model also includes a limiting structure for left-right and up-down swinging to prevent damage to the fan head structure caused by excessive human rotation. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model, the drawings used in the specific embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the fan appearance provided by this utility model;

[0020] Figure 2 This is a longitudinal sectional view of the fan unit provided by this utility model;

[0021] Figure 3 This is an exploded isometric view of the fan unit provided by this utility model;

[0022] Figure 4 This is an isometric schematic diagram of the fan head provided by this utility model;

[0023] Figure 5 This is a diagram illustrating the longitudinal head swing provided by this utility model;

[0024] Figure 6 This is an isometric schematic diagram of the fan body assembly provided by this utility model;

[0025] Figure 7 This is a cross-sectional view of the automatic left-right head swing and the manual up-down head swing provided by this utility model;

[0026] Figure 8 yes Figure 7 Enlarged view of section B;

[0027] Figure 9 yes Figure 7 Enlarged view of section C;

[0028] Figure 10 yes Figure 8Schematic diagram of the BB section;

[0029] Figure 11 for Figure 10 A schematic diagram of a cross-section rotated by a slight angle;

[0030] Figure 12 This is a cross-sectional view of the manual up-and-down swing head structure provided by this utility model;

[0031] Figure 13 These are other head-swinging diagrams provided by this utility model.

[0032] The markings in the diagram have the following meanings: 1 - Vertical support body

[0033] 11-Front shell, 12-Rear shell, 13-Top cover, 14-Base, 2-Fan head

[0034] 21-Fan assembly

[0035] 211-Front grille, 212-Middle ring, 213-Wind blade, 214-Motor bracket, 215-Motor, 216-Rear grille cover

[0036] 22-Rotating ring, 23-Decorative ring

[0037] 3-Left and right head swing components

[0038] 31-Fixed bushing, 311-Arc-shaped positioning groove

[0039] 32-Rotating sleeve I, 321-Internal gear, 322-Locking pin

[0040] 33-Drive Motor

[0041] 34-Pinary Gear

[0042] 4-Up-and-down swing component

[0043] 41-Rotating sleeve II, 411-Positioning blind hole

[0044] 42-Positioning piece, 421-Positioning hole

[0045] 43-Positioning pin

[0046] 44-Spring

[0047] 45-Abrasion-resistant sheet

[0048] a- Fan head mounting hole. Detailed Implementation

[0049] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0050] like Figures 1 to 13 As shown, this utility model provides a multi-functional multi-head electric fan, including a vertical support body 1. The vertical support body 1 has multiple fan head mounting holes a that are staggered left and right, as shown in the figure. Figure 3 As shown, a fan head 2 is installed at each fan head mounting hole a. A left and right oscillating head assembly 3 is installed at the upper and lower ends of the fan head 2 respectively. The left and right oscillating head assembly 3 forms a rotatable connection with the corresponding inner side of the fan head mounting hole a, which is used to control the left and right oscillation of the fan head 2. Figure 2 Two fan head mounting holes a are provided, and more can be provided. The vertical support body 1 used in this invention is preferably a flat support structure, which includes a front shell 11, a rear shell 12, an upper cover 13, and a base 14. The front shell 11 and the rear shell 12 are detachably fastened together. After the front shell 11 and the rear shell 12 are fastened together, the upper cover 13 is fastened to the top of the front shell 11 and the rear shell 12. The base 14 is connected to the lower end of the fastened front shell 11 and the rear shell 12, serving as a support. At least two fan head mounting holes a are provided on the flat surface of the vertical support body 1, located at different heights and staggered left and right. This invention designs fan heads 2 located on different axes on the flat body, and each fan head 2 can be controlled to work independently. Different fan heads 2 can be rotated left and right to the required angle to achieve directional or blowing air within a certain range.

[0051] The left and right head-swinging component 3 can adopt the following structure: Figure 7 and Figure 8 As shown, the left and right oscillating head assembly 3 includes a fixed bushing 31 and a rotating bushing I32. The fixed bushing 31 is installed inside the fan head mounting hole a and is fixedly connected to the vertical support body 1. One end of the rotating bushing I32 is fixedly connected to the fan head 2, and the other end is fitted into the fixed bushing 31. The two form a relative rotational connection, and the air blowing direction of the fan head can be set by manually oscillating.

[0052] Of course, in order to achieve automatic left-right oscillation of the fan head and thus blow air within a certain range, as a further preferred embodiment of this utility model, the following structure can also be adopted, such as... Figure 8As shown: The left and right oscillating head assembly 3 also includes a drive motor 33 and a pinion 34. The pinion 34 is connected to the drive shaft of the drive motor 33. An internal gear 321 is provided on the inner side of the rotating bushing I32 connected to the upper end of the fan head 2. The pinion 34 and the internal gear 321 form a meshing transmission connection. The pinion 34 can drive the rotating bushing I32 to rotate or oscillate 360° through the internal gear 321. The drive motor 33 is fixed on the vertical support body 1. By controlling the rotation of the drive motor 33, the fan head can be driven to rotate left and right through the rotating bushing I32. Of course, the fan head 2 can also be controlled to oscillate left and right repeatedly within a certain angle range by setting a control program. Since the two fan heads on the vertical support body 1 in the figure contain two fan heads with different axes and can be controlled independently, the left and right oscillating head assembly 3 set on the vertical support body 1 drives the fan head 2 to oscillate back and forth horizontally. The large-angle oscillation can allow the airflow direction to swing from the front to the rear of the product.

[0053] As a further preferred embodiment of this utility model, to avoid the user manually rotating the fan head excessively and damaging the internal drive structure, such as... Figure 10 and Figure 11 As shown, the present invention has a positioning post 322 on the rotating bushing I32, and an arc-shaped positioning groove 311 on the fixed bushing 31 corresponding to the positioning post 322. The positioning post 322 extends into the arc-shaped positioning groove 311. When the rotating bushing I32 is rotated, the positioning post 322 slides relative to the arc-shaped positioning groove 311. When the positioning post 322 rotates and stops at the edge of the arc-shaped positioning groove 311, the fan head 2 can no longer rotate.

[0054] As a further preferred embodiment of this utility model, such as Figure 4 and Figure 7 As shown, this utility model also includes a component that can control the up-and-down swing of the fan head. Specifically, the fan head 2 includes a fan body assembly 21, a rotating ring 22, and a decorative ring 23. The fan body assembly 21 is fixed to the inner ring surface of the rotating ring 22. Up-and-down swinging components 4 are provided at two opposite positions on the outer ring surface of the rotating ring 22. The up-and-down swinging components 4 are rotatably connected to the inner ring surface of the decorative ring 23. The rotating bushing I32 is fixed to the decorative ring 23. Figure 5 The diagram shows the fan head 2 swinging up and down.

[0055] More preferably, the up-and-down swing assembly 4 is respectively installed at the left and right ends of the rotating ring 22 to control the up-and-down swing of the fan assembly 21. The up-and-down swing assembly 4 includes a rotating bushing II 41, which serves as the pivot for up-and-down rotation. One end of the rotating bushing II 41 is fixed relative to the rotating ring 22, and the other end is rotatably connected to the inner side of the decorative ring 23. When the upper or lower part of the swing rotating ring 22 is manually pushed back and forth, the fan head can be well controlled to swing up and down with the rotating bushing II 41 as the pivot.

[0056] To better achieve precise positioning of the vertical swing angle, this invention also includes positioning stops with multiple different swing angles, such as... Figure 9 and Figure 12 As shown. The up-and-down swing assembly 4 also includes a positioning plate 42, a positioning pin 43, and a spring 44. A positioning blind hole 411 is provided on the end face of the rotating bushing II 41 located at one end of the rotating ring 22. The spring 44 is placed in the positioning blind hole 411. The positioning pin 43 has a stepped shaft structure with a rounded end face structure at its end. The thin shaft passes through the spring 44, and the thick shaft is pressed against the end face of the spring 44. The positioning plate 42 is fixed to the inner side of the decorative ring 23 by a fastening connector. Multiple positioning holes 421 are provided on the positioning plate 42, and the positioning holes 421 are arranged opposite to the positioning blind holes 411 on the rotating bushing II 41. The rounded end face of the positioning pin 43 is pressed against the positioning hole 421 under the elastic force of the spring 44. When the fan head 2 needs to be adjusted for vertical oscillation, simply rotate the fan body assembly 21 manually. The end of the positioning pin 43 will move out of one of the positioning holes, compress the spring, and then move into another adjacent positioning hole. Under the action of the spring force, it will press against the positioning hole, thus preventing the fan head from shifting when it oscillates left and right.

[0057] like Figure 6 As shown, the fan assembly 21 used in this utility model includes a front grille 211, a middle ring 212, a fan blade 213, a motor bracket 214, a motor 215, and a rear grille 216. Each fan assembly 21 includes a fan blade 213, and each fan blade 213 corresponds to a motor 215, a front grille 211, a rear grille 216, etc. The structure of each fan head is the same.

[0058] The electric fan of this invention can select one or two fans to operate, making its use more diverse; the airflow direction of each fan head assembly can be selected horizontally or vertically according to user needs, achieving simultaneous airflow in multiple directions and greatly improving the product's practicality. Figure 13 The diagram shown is a schematic of different swing states provided by this utility model. Multiple fan heads working simultaneously can achieve a three-dimensional airflow effect.

[0059] Any aspects not covered in this utility model are applicable to the prior art.

[0060] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A multi-functional multi-head electric fan, characterized in that, The electric fan includes a vertical support body (1), on which a plurality of fan head mounting holes (a) are formed in a staggered manner. A fan head (2) is installed at each of the fan head mounting holes (a). A left and right swing head assembly (3) is installed at the upper and lower ends of the fan head (2). The left and right swing head assembly (3) is rotatably connected to the corresponding inner side of the fan head mounting hole (a) and is used to control the left and right swing of the fan head (2).

2. The multi-functional multi-head electric fan according to claim 1, characterized in that, The left and right swaying head assembly (3) includes a fixed bushing (31) and a rotating bushing I (32). The fixed bushing (31) is installed inside the fan head mounting hole (a) and is fixedly connected to the vertical support body (1). One end of the rotating bushing I (32) is fixedly connected to the fan head (2), and the other end is fitted into the fixed bushing (31), forming a relative rotational connection between the two.

3. The multi-functional multi-head electric fan according to claim 2, characterized in that, The left and right swaying head assembly (3) also includes a drive motor (33) and a pinion (34). The pinion (34) is connected to the drive shaft of the drive motor (33). An internal gear (321) is provided on the inner side of the rotating bushing I (32) connected to the upper end of the fan head (2). The pinion (34) and the internal gear (321) form a meshing transmission connection. The drive motor (33) is fixed on the vertical support body (1).

4. The multi-functional multi-head electric fan according to claim 3, characterized in that, The rotating bushing I (32) is provided with a positioning post (322), and the fixed bushing (31) corresponding to the positioning post (322) is provided with an arc-shaped positioning groove (311). The positioning post (322) extends into the arc-shaped positioning groove (311). When the rotating bushing I (32) is rotated, the positioning post (322) slides relative to the arc-shaped positioning groove (311).

5. The multi-functional multi-head electric fan according to any one of claims 2-4, characterized in that, The fan head (2) includes a fan body assembly (21), a rotating ring (22), and a decorative ring (23). The fan body assembly (21) is fixed to the inner ring surface of the rotating ring (22). The two opposite positions of the outer ring surface of the rotating ring (22) are provided with up-and-down swinging components (4). The up-and-down swinging components (4) are rotatably connected to the inner ring surface of the decorative ring (23). The rotating bushing I (32) is fixed on the decorative ring (23).

6. The multi-functional multi-head electric fan according to claim 5, characterized in that, The up-and-down swing assembly (4) is respectively installed on the left and right ends of the rotating ring (22) to control the up-and-down swing of the fan assembly (21); the up-and-down swing assembly (4) includes a rotating bushing II (41), one end of which is fixed to the rotating ring (22), and the other end is rotated relative to the inner side of the decorative ring (23).

7. The multi-functional multi-head electric fan according to claim 6, characterized in that, The up-and-down swing assembly (4) also includes a positioning plate (42), a positioning pin (43), and a spring (44). A positioning blind hole (411) is provided on the end face of the rotating bushing II (41) located at one end of the rotating ring (22). The spring (44) is placed in the positioning blind hole (411). One end of the positioning pin (43) is pressed into the spring (44). The positioning plate (42) is fixed to the inner side of the decorative ring (23) by a fastening connector. The positioning plate (42) is provided with a plurality of positioning holes (421), and the positioning holes (421) are opposite to the positioning blind holes (411) on the rotating bushing II (41). One end of the positioning pin (43) is pressed against the positioning hole (421) under the elastic force of the spring (44).

8. The multi-functional multi-head electric fan according to claim 1, characterized in that, The vertical support body (1) has a flat structure, including a front shell (11), a rear shell (12), an upper cover (13), and a base (14). The front shell (11) and the rear shell (12) are detachably fastened together. The upper cover (13) is fastened to the top of the front shell (11) and the rear shell (12). The base (14) is connected to the lower end of the fastened front shell (11) and the rear shell (12). The flat surface of the vertical support body (1) is provided with at least two fan head mounting holes (a) located at different heights and staggered left and right.

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