CN108547785A - A kind of adjustable electric fan of swing angle - Google Patents

Abstract

The invention discloses a kind of adjustable electric fans of swing angle, including rack, frame top is equipped with angular adjustment component, angular adjustment component is equipped with swing connecting bar component, swing connecting bar component top is equipped with gear set, swing connecting bar component top is connected with gear set by shaft, it is connected with fan electromotor on the outside of gear set, angular adjustment component includes sliding slot, lead screw is equipped in the middle part of sliding slot, screw both end is rotatablely connected with sliding slot inner wall respectively, the external part of one end of lead screw is fixedly connected with swing angle adjusting block, swinging button is slidably connected in the middle part of swing angle adjusting block, sliding block is connected on lead screw, slider bottom is slidably connected with sliding slot, sliding block top is connect with swing connecting bar component.

Description

Electric fan with adjustable swing angle

technical field

The invention relates to the field of household appliances, in particular to an electric fan with an adjustable swing angle.

Background technique

There are currently two principles of swingable electric fans on the market:

(1) The worm on the rotor shaft is engaged with the matching turbine. There is an eccentric shaft on the turbine. The eccentric shaft drives the connecting rod to move back and forth, drives the fan head to swing left and right, and the worm gear system drives the fan to swing. However, the disadvantage of this method is that the angle range is determined by the length of the connecting piece and the eccentric radius, and the length of the connecting piece and the eccentric radius cannot be changed at will, so the angle cannot be adjusted;

(2) Rely on the synchronous motor (with a reducer) to make the fan swing head. The rotation direction of the synchronous motor is random. When it is resisted, it will automatically change the rotation direction. When the swing head swings to the set position, it will be blocked and synchronized. The motor turns back, so that the phenomenon of swinging the head back and forth is formed. But the disadvantage of this method is: the position is set in advance, and the flexibility of the angle cannot be realized.

Contents of the invention

The purpose of the present invention is to provide an electric fan with an adjustable swing angle, so as to solve the problems raised in the background art above.

An electric fan with an adjustable swing angle, comprising a frame, an angle adjustment assembly is arranged on the top of the frame, a swing link assembly is arranged on the angle adjustment assembly, a gear set is arranged on the upper part of the swing link assembly, The upper part of the swing link assembly is connected to the gear set through a rotating shaft, and a fan motor is connected to the outer side of the gear set.

Preferably, the angle adjustment assembly includes a chute, a screw rod is provided in the middle of the chute, the two ends of the screw rod are respectively connected to the inner wall of the chute in rotation, and the protruding end of one end of the screw rod is fixedly connected with a swing angle adjustment The middle part of the swing angle adjustment block is slidably connected with a swing button, the screw rod is matched with a slider, the bottom of the slider is slidably connected with the chute, and the upper part of the slider is connected with the swing link assembly.

Preferably, one end of the swing button is provided with a ratchet mechanism, the other end of the swing button is provided with a connector, the connector is provided with a spring and the end of the connector is provided with a wire.

Preferably, the screw rod is hollow, and the wire passes through the screw rod and is slidably connected with the screw rod.

Preferably, the swing link assembly includes a first link, a second link and a fixed rod, the fixed rod is fixedly connected to the top of the slider, and the upper end surface of the fixed rod is rotatably connected to the middle part of the lower surface of the second link. The lower surface of one end of the first connecting rod is rotatably connected to the upper surface of the frame, the other end of the first connecting rod is connected to the rear end of the second connecting rod through a fixed shaft, and the fixed shaft is rotatably connected to the first connecting rod and connected to the second connecting rod. The connecting rod is fixedly connected, and the front end of the second connecting rod is rotatably connected with a rotating shaft, and the second connecting rod is connected with the gear set through the rotating shaft.

Preferably, the gear set includes a first gear, a second gear and a worm gear assembly, the first gear is fixedly connected to the rotating shaft, the second gear is fixedly connected to the fixed shaft, and the first gear and the second gear Fittingly connected, the upper part of the rotating shaft is provided with a worm gear assembly, the worm gear assembly includes a worm gear and a worm, the worm gear is fixedly connected to the upper part of the rotating shaft, and the worm is fixedly connected to the extended end of the fan motor.

Preferably, the lower end of the rotating shaft is provided with an elastic assembly, the elastic assembly includes a gear shaft spring and a gear shaft connector, the gear shaft spring is sleeved on the outer surface of the lower end of the rotating shaft, and the gear shaft connector is connected to the bottom of the rotating shaft Sliding connection, one end of the wire is fixedly connected to the end of the swing connector, and the other end is fixedly connected to the gear shaft connector.

Preferably, the outer end of the wire is provided with a threading tube, one end of the threading tube is connected to the gear shaft connector, and the other end is connected to the chute.

The beneficial effects of the present invention are: the rotation of the screw rod drives the displacement of the slider, and the slider can change the angle between the first connecting rod and the second connecting rod during the moving process, thereby completing the control and adjustment of the fan angle , which greatly improves the working efficiency of the fan, and it is easy to adjust the angle of the swing head, so that the user of the fan can get more comfort.

The swing button is used to control whether the fan swings. When the swing button is pressed, the ratchet structure moves in one direction, which makes the spring compressed, and the wire passes through the hollow screw rod and then through the threading tube to release the wire, so that the gear shaft in the gear shaft connector The spring pushes the rotating shaft upward, and then disengages the internal gears of the gear set, so that the fan blows in one direction. When the shaking head button is pressed again, the spring stretches, and the thread is contracted through the threading tube, so that the gear shaft in the gear shaft connector The spring pulls the rotating shaft down, so that the rotating shaft is displaced downward, and then the internal gears of the gear set are matched, so that the fan shakes its head and blows air.

Description of drawings

Fig. 1 is a structural schematic diagram of an electric fan with adjustable swing angle according to the present invention.

Fig. 2 is a schematic structural diagram of the angle adjustment assembly according to the present invention.

Fig. 3 is a schematic structural diagram of the elastic component of the present invention.

Fig. 4 is a schematic diagram of the internal structure of the elastic component according to the present invention.

Fig. 5 is a schematic structural diagram of the swing button according to the present invention.

Among them: 1. Rack; 2. Swing link assembly; 21. First link; 22. Second link; 23. Fixed rod; 24. Fixed shaft; 3. Gear set; 31. First gear; 32 , the second gear; 33, the worm; 34, the turbine; 4, the fan motor; 5, the rotating shaft; 6, the swing button; 7, the swing angle adjustment block; 8, the chute; 1. Threading tube; 12. Ratchet mechanism; 13. Spring; 14. Connector; 16. Gear shaft spring; 17. Gear shaft connector.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

As shown in Figures 1 to 5, an electric fan with an adjustable swing angle includes a frame 1, an angle adjustment assembly is provided on the top of the frame 1, and a swing link assembly 2 is provided on the angle adjustment assembly. The upper part of the swing link assembly 2 is provided with a gear set 3 , the upper part of the swing link assembly 2 is connected with the gear set 3 through a rotating shaft 5 , and the outer side of the gear set 3 is matched with a fan motor 4 . The rotation angle of the fan is controlled by the angle adjustment assembly, and the swing and stillness of the fan are realized by the cooperation of the swing link assembly 2 and the gear set 3 .

In this embodiment, the angle adjustment assembly includes a chute 8, a screw 9 is provided in the middle of the chute 8, the two ends of the screw 9 are respectively connected to the inner wall of the chute 8 in rotation, and one end of the screw 9 is The extension end is fixedly connected with a swing angle adjustment block 7, the middle part of the swing angle adjustment block 7 is slidably connected with a swing button 6, the screw rod 9 is connected with a slider 10, and the bottom of the slider 10 is connected with the chute 8 Slidingly connected, the upper part of the slider 10 is connected with the swing link assembly 2.

In this embodiment, one end of the swing button 6 is provided with a ratchet mechanism 12, and the other end of the swing button 6 is provided with a connector 14, the connector 14 is provided with a spring 13 and the end of the connector 14 is provided with a There are threads.

In this embodiment, the screw rod 9 is hollow, and the wire passes through the screw rod 9 and is slidably connected with the screw rod 9 .

In this embodiment, the swing link assembly 2 includes a first link 21, a second link 22 and a fixed rod 23, the fixed rod 23 is fixedly connected to the top of the slider 10, and the upper end surface of the fixed rod 23 is connected to the first The middle part of the lower surface of the two connecting rods 22 is rotationally connected, the lower surface of one end of the first connecting rod 21 is rotationally connected to the upper surface of the frame 1, and the other end of the first connecting rod 21 is connected to the rear end of the second connecting rod 22 through a fixed shaft 24, The fixed shaft 24 is rotatably connected with the first connecting rod 21, and is fixedly connected with the second connecting rod 22. The front end of the second connecting rod 22 is rotatably connected with the rotating shaft 5, and the second connecting rod 22 is connected with the gear through the rotating shaft 5. Group 3 connections.

In this embodiment, the gear set 3 includes a first gear 31, a second gear 32 and a worm gear assembly, the first gear 31 is fixedly connected to the rotating shaft 5, and the second gear 32 is fixedly connected to the fixed shaft 24 , the first gear 31 is mated with the second gear 32, the upper part of the rotating shaft 5 is provided with a worm gear assembly, and the worm gear assembly includes a worm gear 34 and a worm 33, and the worm gear 34 is fixedly connected to the upper part of the rotating shaft 5, so The worm 33 is fixedly connected with the extended end of the fan motor 4 .

In this embodiment, the lower end of the rotating shaft 5 is provided with an elastic assembly, the elastic assembly includes a gear shaft spring 16 and a gear shaft connector 17, the gear shaft spring 16 is sleeved on the outer surface of the lower end of the rotating shaft 5, and the The gear shaft connector 17 is slidingly connected to the bottom of the rotating shaft 5 , one end of the wire is fixedly connected to the end of the swing connector 14 , and the other end is fixedly connected to the gear shaft connector 17 .

In this embodiment, the outer end of the wire is provided with a threading tube 11 , one end of the threading tube 11 is connected to the gear shaft connector 17 , and the other end is connected to the chute 8 .

The specific working principle and steps: the rotation of the screw 9 drives the displacement of the slider 10. During the movement of the slider 10, the angle between the first connecting rod 21 and the second connecting rod 22 can be changed to complete the fan angle. The control and adjustment of the fan greatly improves the working efficiency of the fan, and the adjustment of the swing head angle is simple, and the fan user can get more comfort.

The swing button 6 is used to control whether the fan swings. When the swing button 6 is pressed, the ratchet mechanism 12 moves in one direction, so that the spring 13 is compressed, and the thread is released through the hollow screw rod 9 and then through the threading tube 11, so that the gear shaft is connected. The gear shaft spring 16 in the wire guide 17 pushes the rotating shaft 5 upwards, and then the internal gears of the gear set 3 are disengaged, so that the fan blows in one direction. Shrink the thread, so that the gear shaft spring 16 in the gear shaft connector 17 pulls the rotating shaft 5 downwards, so that the rotating shaft 5 is displaced downwards, and then the internal gears of the gear set 3 are matched, so that the fan shakes its head and blows air. This method uses wires to control the swing and stillness of the fan, rather than forcing it by external force, which can greatly improve the service life of the worm gear assembly.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or fundamentals of the present invention. The present invention can be implemented in other specific forms without any specific features. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (8)

1. An electric fan with adjustable swing angle, characterized in that it includes a frame (1), the top of the frame (1) is provided with an angle adjustment assembly, and the angle adjustment assembly is provided with a swing link assembly ( 2), the upper part of the swing link assembly (2) is provided with a gear set (3), the upper part of the swing link assembly (2) is connected to the gear set (3) through a rotating shaft (5), and the outer side of the gear set (3) A fan motor (4) is matingly connected. 2. An electric fan with adjustable swing angle according to claim 1, characterized in that, the angle adjustment assembly includes a chute (8), and a screw rod (9) is provided in the middle of the chute (8) , the two ends of the screw mandrel (9) are respectively connected to the inner wall of the chute (8) for rotation, and the protruding end of one end of the screw mandrel (9) is fixedly connected with a swing angle adjustment block (7), and the swing angle adjustment block ( 7) A swing button (6) is slidably connected in the middle part, and a slide block (10) is matched and connected with the screw mandrel (9), and the bottom of the slide block (10) is slidably connected with the chute (8), and the slide block (10) ) The upper part is connected with the swing link assembly (2). 3. An electric fan with adjustable swing angle according to claim 2, characterized in that a ratchet mechanism (12) is provided at one end of the swing button (6), and a ratchet mechanism (12) is provided at the other end of the swing button (6). A connector (14), the connector (14) is provided with a spring (13) and the end of the connector (14) is provided with a wire. 4. An electric fan with adjustable swing angle according to claim 3, characterized in that, the screw mandrel (9) is hollow, the thread passes through the screw mandrel (9), and is connected with the screw mandrel (9). ) sliding connection. 5. An electric fan with adjustable swing angle according to claim 1, characterized in that, the swing link assembly (2) comprises a first link (21), a second link (22) and a fixed rod (23), the fixed rod (23) is fixedly connected with the top of the slider (10), the upper end surface of the fixed rod (23) is rotationally connected with the middle part of the lower surface of the second connecting rod (22), and the first connecting rod ( 21) The lower surface of one end is rotationally connected with the upper surface of the frame (1), and the other end of the first connecting rod (21) is connected with the rear end of the second connecting rod (22) through a fixed shaft (24), and the fixed shaft (24) Rotately connected with the first connecting rod (21), and fixedly connected with the second connecting rod (22), the front end of the second connecting rod (22) is rotatably connected with a rotating shaft (5), the second connecting rod (22) It is connected with the gear set (3) through the rotating shaft (5). 6. An electric fan with adjustable swing angle according to claim 1, characterized in that, the gear set (3) comprises a first gear (31), a second gear (32) and a worm gear assembly, the The first gear (31) is fixedly connected with the rotating shaft (5), the second gear (32) is fixedly connected with the fixed shaft (24), and the first gear (31) is connected with the second gear (32), The upper part of the rotating shaft (5) is provided with a worm gear assembly, and the worm gear assembly includes a turbine (34) and a worm (33), and the turbine (34) is fixedly connected with the upper part of the rotating shaft (5), and the worm (33) It is fixedly connected with the extended end of the fan motor (4). 7. An electric fan with adjustable swing angle according to claim 3, characterized in that, the lower end of the rotating shaft (5) is provided with an elastic assembly, and the elastic assembly includes a gear shaft spring (16) and a gear shaft coupling The gear shaft spring (16) is sleeved on the outer surface of the lower end of the rotating shaft (5), the gear shaft connecting device (17) is slidingly connected to the bottom of the rotating shaft (5), and one end of the silk thread is connected by swinging Wire device (14) end is affixed, and the other end is affixed with gear shaft connector (17). 8. An electric fan with adjustable swing angle according to claim 3, characterized in that, the outer end of the wire is provided with a threading pipe (11), and one end of the threading pipe (11) is connected to the gear shaft connector ( 17) is connected, and the other end is connected with chute (8).