CN215719628U

CN215719628U - Electric fan

Info

Publication number: CN215719628U
Application number: CN202120950888.0U
Authority: CN
Inventors: 李迪初
Original assignee: Changfang Group Kang Mingsheng Shenzhen Technology Co ltd
Current assignee: Changfang Group Kang Mingsheng Shenzhen Technology Co ltd
Priority date: 2021-05-06
Filing date: 2021-05-06
Publication date: 2022-02-01
Anticipated expiration: 2031-05-06

Abstract

The utility model provides an electric fan, comprising: the base, the rotating assembly, flexible subassembly and fan assembly, the rotating assembly assembles at the base, flexible subassembly includes two at least telescopic links, the length direction slip assembly along the telescopic link between the adjacent telescopic link, the telescopic link assembly that is located the head end is at the rotating assembly, the rotating assembly is used for driving the telescopic link and rotates, fan assembly rotates the assembly and is being located terminal telescopic link, the base internal fixation has the circuit board, the circuit board is equipped with rotation control module and wind speed control module. The air supply angle of the fan assembly is changed through the telescopic assembly and the rotating assembly in the technical scheme, so that the air supply range of the electric fan is changed, the air supply effect of the desktop electric fan is greatly improved, the fan assembly is rotated simultaneously, the fan assembly is close to the base, and a user can conveniently store the electric fan.

Description

Electric fan

Technical Field

The utility model belongs to the technical field of electric fans, and particularly relates to an electric fan.

Background

The electric fan is a household appliance which uses a motor to drive fan blades to rotate so as to accelerate the circulation of air, and is mainly used for cooling, relieving summer heat and circulating air. The connecting parts of the existing desktop electric fan are usually fixedly connected, such as screw connection and buckle connection, so that a user cannot stretch or rotate when using the desktop electric fan, and the air supply area is small.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electric fan and aims to solve the problem that an existing desktop electric fan is small in air supply area.

In order to solve the above technical problem, the present invention is achieved as follows, in which an electric fan includes: base, rotating assembly, flexible subassembly and fan assembly, the rotating assembly assembles the base, flexible subassembly includes two at least telescopic links, and is adjacent follow between the telescopic link length direction slip assembly, be located the head end the telescopic link assembly is in the rotating assembly, the rotating assembly is used for driving the telescopic link rotates, fan assembly rotates the assembly and is being located the end the telescopic link, the base internal fixation has the circuit board, the circuit board is equipped with rotation control module and wind speed control module, rotation control module is used for control the operation of rotating assembly, wind speed control module is used for control fan assembly's output.

Furthermore, the telescopic rods are sequentially arranged from the base towards the direction of the fan assembly, and the rear telescopic rod is slidably assembled in the front telescopic rod.

Furthermore, the telescopic link has been seted up the through-hole, the telescopic link be equipped with from the elastic component of radial popping out of telescopic link, the through-hole with the elastic component is located same one side of telescopic link.

Furthermore, the rotating assembly comprises a connecting seat, the connecting seat is fixed on the base, and the telescopic rod at the head end is rotatably assembled on the connecting seat.

Furthermore, rotating assembly still includes first driving source and gear, first driving source is fixed the base, the gear is fixed and is located the head end the telescopic link, the output of first driving source is fixed with the driving medium, the driving medium with gear engagement assembly.

Furthermore, the rotating shaft between the telescopic rod and the connecting seat, the central line of the gear and the central line of the telescopic rod are coincided.

Furthermore, the telescopic rod positioned at the tail end is fixed with a rotating seat, the rotating seat is provided with an extending part perpendicular to the length direction of the telescopic rod, an assembly hole is formed in the extending part of the rotating seat, a connecting rod is rotationally assembled in the assembly hole, and the fan assembly is connected with two ends of the connecting rod.

Furthermore, a first pressing piece and a second pressing piece are arranged at two ends of the connecting rod respectively, the first pressing piece is rotatably assembled on the connecting rod, one end of the first pressing piece abuts against the extending portion of the rotating seat, the fan assembly is connected to the first pressing piece, the second pressing piece is fixed at one end, away from the first pressing piece, of the connecting rod, and one end, close to the first pressing piece, of the second pressing piece abuts against the fan assembly.

Further, the rotation control module includes the sensor of shaking the head and shakes the head the socket, wind speed control module includes wind speed sensor and wind speed socket, the base is fixed with adjustment button, shake the head sensor with the wind speed sensor interval is located in the circuit board, shake the head sensor with wind speed sensor all electricity connect in adjustment button, the socket electricity of shaking the head connect in rotating assembly, the wind speed socket electricity connect in fan assembly.

Furthermore, the circuit board is further fixed with a timing component and an indicator light component, the timing component is electrically connected to the adjusting button, the indicator light component comprises a wind speed indicator light, an electric quantity indicator light and a timing indicator light, and the wind speed indicator light, the electric quantity indicator light and the timing indicator light are encircled into a circle.

Compared with the prior art, the electric fan has the advantages that: firstly, sliding the telescopic rod, moving the fan assembly for a certain distance, sliding the telescopic rod again, moving the fan assembly for a certain distance again, and changing the air supply height of the fan assembly; when the rotation control module controls the rotation assembly to operate, the telescopic rod rotates at the moment, and the fan assembly rotates along with the telescopic rod, so that the air supply angle of the fan assembly is changed; when the fan assembly is rotated, the fan assembly approaches or moves away from the base, and the pitch angle of the fan assembly is changed. Through in this application technical scheme the flexible subassembly with rotating assembly has changed fan assembly's air supply angle to the air supply scope of electric fan has been changed, has made the air supply effect of desktop electric fan have greatly promoted, rotates simultaneously fan assembly makes fan assembly is close to the base, and the user of being convenient for accomodates the electric fan.

Drawings

FIG. 1 is a perspective view of an electric fan according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a circuit board structure of an electric fan according to an embodiment of the present invention.

In the drawings, each reference numeral denotes: 1. a base; 11. an upper base; 12. a lower base; 2. a telescoping assembly; 21. a telescopic rod; 3. a fan assembly; 31. an outer frame; 4. a rotating seat; 5. an adjustment button; 6. a circuit board; 60. a battery; 61. a head shaking sensor; 62. a shaking socket; 63. a wind speed sensor; 64. a wind speed socket; 65. a timing component; 66. a power switch sensor; 661. a timing indicator light; 662. an electric quantity indicator light; 663. a wind speed indicator light; 67. an LED component; 68. a USB serial port; 69. and (4) an inductive probe component.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Example (b):

in the present embodiment, as shown in fig. 1 and 2, an electric fan includes: base 1, rotating assembly, flexible subassembly 2 and fan subassembly 3, the rotating assembly assembles at base 1, flexible subassembly 2 includes two at least telescopic links 21, the length direction sliding assembly along telescopic link 21 between the adjacent telescopic link 21, the telescopic link 21 assembly that is located the head end is at rotating assembly, rotating assembly is used for driving telescopic link 21 and rotates, fan subassembly 3 rotates the assembly and is lieing in terminal telescopic link 21, base 1 internal fixation has circuit board 6, circuit board 6 is equipped with spin control module and wind speed control module, spin control module is used for controlling the operation of rotating assembly, wind speed control module is used for controlling fan subassembly 3's output.

Firstly, sliding the telescopic rod 21, moving the fan assembly 3 for a certain distance, sliding the telescopic rod 21 again, moving the fan assembly 3 for a certain distance again, and changing the air supply height of the fan assembly 3; when the rotation control module controls the rotation assembly to operate, the telescopic rod 21 rotates at the moment, and the fan assembly 3 rotates along with the telescopic rod 21, so that the air supply angle of the fan assembly 3 is changed; when the fan assembly 3 is rotated, the fan assembly 3 approaches or moves away from the base 1, changing the pitch angle of the fan assembly 3. The air supply angle of the fan assembly 3 is changed through the telescopic assembly 2 and the rotating assembly in the technical scheme, so that the air supply range of the electric fan is changed, the air supply effect of the desktop electric fan is greatly improved, the fan assembly 3 is rotated simultaneously, the fan assembly 3 is close to the base 1, and a user can conveniently store the electric fan.

Referring to fig. 1, the telescopic rods 21 are sequentially arranged from the base 1 toward the fan assembly 3, and the rear telescopic rod 21 is slidably fitted into the front telescopic rod 21; the telescopic rod 21 is provided with a through hole, the telescopic rod 21 is provided with an elastic piece which is radially popped out from the telescopic rod 21, and the through hole and the elastic piece are positioned on the same side of the telescopic rod 21. In this embodiment, the number of the telescopic rods 21 is four, wherein the telescopic rod 21 at the head end is a first one, the telescopic rod 21 at the tail end is a fourth one, the length direction of the first telescopic rod 21 is perpendicular to the supporting surface where the base 1 is located, one end of the first telescopic rod 21 is rotatably assembled on the rotating assembly, the other end of the first telescopic rod 21 is connected with the second telescopic rod 21, and the fan assembly 3 is rotatably assembled at one end of the fourth telescopic rod 21, which is far away from the third telescopic rod 21. The perisporium of telescopic link 21 is equipped with along axially extended recess, the through-hole is located the recess and telescopic link 21 is equipped with the one end of through-hole and is close to another telescopic link 21, the elastic component is the elasticity thimble, the one end of elastic component is fixed in the recess of telescopic link 21 perisporium, the other end of elastic component supports on the inner wall of another telescopic link 21, after two telescopic links 21 relative slip predetermine the distance the elastic component does not contact with the inner wall of telescopic link 21 and pops out and imbeds to the through-hole in, telescopic link 21 stops sliding, the extrusion elastic component breaks away from the through-hole, then telescopic link 21 slidable resumes to initial condition. In other embodiments, the number of the telescopic rods 21 is set according to actual needs; an electric telescopic rod 21 can also be adopted, a telescopic switch is directly arranged on the base 1, and the telescopic rod 21 is controlled to be telescopic through the switch; the base 1 can be also provided with a telescopic bracket, and the air supply height of the fan component 3 can be controlled by adjusting the distance between the base 1 and the desktop.

Referring to fig. 1, the rotating assembly includes a connecting base fixed to the base 1, and a telescopic rod 21 at a head end is rotatably assembled to the connecting base. In this embodiment, the connecting seat is a rolling bearing, one end of the rolling bearing is fixed on the base 1, one end of the first telescopic rod 21 extends into the inner ring of the rolling bearing, the peripheral wall of the telescopic rod 21 abuts against the peripheral wall of the inner ring, the peripheral wall of the inner ring of the rolling bearing is further fixed with a first positioning block, the peripheral wall of the first telescopic rod 21 is provided with a first positioning groove matched with the first positioning block, and the first positioning block is embedded into the first positioning groove. When the telescopic rod 21 is rotated, the telescopic rod 21 is rotated on the rolling bearing. In other embodiments, the number of the first positioning blocks and the first positioning grooves can be set according to actual needs.

Referring to fig. 1, the rotating assembly further includes a first driving source fixed to the base 1 and a gear fixed to the telescopic rod 21 at the head end, and a transmission member fixed to an output end of the first driving source and engaged with the gear; the rotating shaft between the telescopic rod 21 and the connecting seat, the central line of the gear and the central line of the telescopic rod 21 are coincided. In this embodiment, the base 1 includes an upper base 11 and a lower base 12, the first driving source is a motor, the transmission member is a transmission gear, a second positioning block is fixed to the inner ring of the gear, a second positioning groove is formed in the first telescopic rod 21, the second positioning block is embedded into the second positioning groove, the first driving source drives the transmission member to rotate in engagement with the gear, and at this time, the gear drives the first telescopic rod 21 to rotate on the connecting seat, so that the fan assembly 3 rotates. More specifically, a predetermined program is provided on the circuit board 6 to rotate the fan assembly 3 by 120 degrees, and the first telescopic rod 21 passes through the gear and the connecting base. In other embodiments, the number of the second positioning blocks and the second positioning grooves is set according to actual needs; the first telescopic rod 21 may also be fixed to the upper base 11, and the first driving source drives the upper base 11 to rotate relative to the lower base 12 to rotate the fan assembly 3.

Referring to fig. 1, the telescopic rod 21 positioned at the tail end is fixed with a rotating seat 4, the rotating seat 4 is provided with an extending part perpendicular to the length direction of the telescopic rod 21, the extending part of the rotating seat 4 is provided with an assembling hole, a connecting rod is rotatably assembled in the assembling hole, and the fan assembly 3 is connected with two ends of the connecting rod. In this embodiment, rotate seat 4 and be the cylinder, the one end of keeping away from third telescopic link 21 at fourth telescopic link 21 is fixed to cylindrical one end, the extension is the rectangular block, the pilot hole has been seted up to the middle part region of extension, the connecting rod rotates the assembly and supports the inner wall of top at the extension at the perisporium of pilot hole and connecting rod, fan assembly 3 includes frame 31, frame 31 extends two supports that have the interval to set up, the assembly ring has all been seted up to two supports, the both ends of connecting rod assemble respectively at the assembly ring.

Referring to fig. 1, the two ends of the connecting rod are respectively provided with a first pressing piece and a second pressing piece, the first pressing piece is rotatably assembled on the connecting rod, one end of the first pressing piece abuts against an extending portion of the rotating seat 4, the fan assembly 3 is connected to the first pressing piece, the second pressing piece is fixed at one end of the connecting rod, away from the first pressing piece, and one end of the second pressing piece, close to the first pressing piece, abuts against the fan assembly 3. In this embodiment, the assembly ring is provided with a bottom plate, the connecting rod is rotatably assembled on the bottom plate, the connecting rod is a screw, the first pressing member is a nut, the second pressing member is a nut, one end of the first pressing member, which is close to the assembly ring, abuts against the bottom plate, one end of the second pressing member, which is close to the assembly ring, abuts against the bottom plate, the first pressing member and the second pressing member are both fixed on the bottom plate of the assembly ring, the fan assembly 3 is rotated, the first pressing member rotates along with the fan assembly 3 and enables the connecting rod to move axially, the first pressing member and the second pressing member press against the bottom plate, the rotation is stopped, a larger force is applied to the fan assembly 3 again, the rotation is continued and the process is repeated, and a gasket is arranged between the first pressing member and the bottom plate and between the second pressing member and the bottom plate to buffer the pressing force between the first pressing member and the bottom plate or between the second pressing member and the bottom plate. In other embodiments, an elastic clamping pin can be arranged on the assembling ring, the connecting rod is provided with a blocking groove, and the elastic clamping pin is pressed to abut against the blocking groove to stop rotating.

Referring to fig. 2, the rotation control module comprises a head shaking sensor 61 and a head shaking socket 62, the wind speed control module comprises a wind speed sensor 63 and a wind speed socket 64, the base 1 is fixed with an adjusting button 5, the head shaking sensor 61 and the wind speed sensor 63 are arranged in the circuit board 6 at intervals, the head shaking sensor 61 and the wind speed sensor 63 are electrically connected to the adjusting button 5, the head shaking socket 62 is electrically connected to the rotation assembly, and the wind speed socket 64 is electrically connected to the fan assembly 3; the circuit board 6 is further fixed with a timing component 65 and an indicator light component, the timing component 65 is electrically connected to the adjusting button 5, the indicator light component comprises a wind speed indicator lamp 663, an electric quantity indicator lamp 662 and a timing indicator lamp 661, and the wind speed indicator lamp 663, the electric quantity indicator lamp 662 and the timing indicator lamp 661 surround into a circle. In this embodiment, base 1 includes upper base 11 and lower base 12, and circuit board 6 is fixed at upper base 11 and circuit board 6 is the rectangle, and fan assembly 3 includes second driving source, frame 31 and flabellum, and frame 31 rotates the assembly at fourth telescopic link 21, and the second driving source is fixed at frame 31, and the second driving source is the motor, and the output of second driving source is connected with the flabellum, and second driving source drive flabellum rotates. Go up base 11 and be fixed with adjustment button 5, adjustment button 5 includes switch button, the shift knob shakes the head, wind speed gear button and timing button, switch button electricity connects in switch sensor 66, press switch button then the electric fan is electrified, the shift knob electricity connects in sensor 61 shakes the head, press the first driving source behind the switch that shakes the head and begin working, fan assembly 3 shakes the head, wind speed gear button electricity connects in wind speed sensor 63, wind speed gear button is the turn button and is equipped with four gears altogether, timing button electricity connects in timing components and parts 65, timing button is the turn button and is equipped with four gears altogether, four gears are regularly one hour respectively, two hours, three hours and four hours, swing socket 62 is used for supplying power for first driving source, wind speed socket 64 is used for supplying power for the second driving source. The power switch button, the toggle switch button, the wind speed gear button, the timing button, the toggle socket 62 and the wind speed socket 64 are located around the circuit board 6, and the wind speed indicator lamp 663, the electric quantity indicator lamp 662 and the timing indicator lamp 661 are located in the middle area of the circuit board 6 and are all provided with four gears. The circuit board 6 is further provided with an LED element 67 and an inductive probe element 69, the inductive probe element 69 being used for infrared remote control. More specifically, the battery 60 is fixed on the lower base 12, and the USB serial port 68 is opened on the upper base 11 for charging. Frame 31 is still fixed with little night-light, and little night-light is controlled by LED components and parts 67.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. An electric fan, comprising: base, rotating assembly, flexible subassembly and fan assembly, the rotating assembly assembles the base, flexible subassembly includes two at least telescopic links, and is adjacent follow between the telescopic link length direction slip assembly, be located the head end the telescopic link assembly is in the rotating assembly, the rotating assembly is used for driving the telescopic link rotates, fan assembly rotates the assembly and is being located the end the telescopic link, the base internal fixation has the circuit board, the circuit board is equipped with rotation control module and wind speed control module, rotation control module is used for control the operation of rotating assembly, wind speed control module is used for control fan assembly's output.

2. The electric fan of claim 1, wherein the extension rods are arranged in series from the base toward the fan assembly, and wherein the rear extension rod is slidably mounted within the front extension rod.

3. The electric fan as claimed in claim 2, wherein the telescopic rod is provided with a through hole, the telescopic rod is provided with an elastic member which is ejected out from the radial direction of the telescopic rod, and the through hole and the elastic member are positioned on the same side of the telescopic rod.

4. The electric fan as claimed in claim 1, wherein the rotation member comprises a connection base fixed to the base, and the telescopic shaft at the head end is rotatably fitted to the connection base.

5. The electric fan as claimed in claim 4, wherein the rotation assembly further comprises a first driving source fixed to the base and a gear fixed to the telescopic rod at the head end, and a transmission member fixed to an output end of the first driving source and engaged with the gear.

6. The electric fan according to claim 5, wherein the rotation axis between the extension rod and the connection base, the center line of the gear, and the center line of the extension rod coincide.

7. The electric fan as claimed in claim 1, wherein a rotary base is fixed to the telescopic rod at the end, the rotary base is provided with an extension part perpendicular to the length direction of the telescopic rod, the extension part of the rotary base is provided with a fitting hole, a connecting rod is rotatably fitted in the fitting hole, and the fan assembly is connected to both ends of the connecting rod.

8. The electric fan as claimed in claim 7, wherein a first pressing member and a second pressing member are respectively disposed at two ends of the connecting rod, the first pressing member is rotatably assembled on the connecting rod, one end of the first pressing member abuts against the extending portion of the rotating base, the fan assembly is connected to the first pressing member, the second pressing member is fixed at one end of the connecting rod away from the first pressing member, and one end of the second pressing member close to the first pressing member abuts against the fan assembly.

9. The electric fan according to claim 1, wherein the rotation control module comprises an oscillating sensor and an oscillating socket, the wind speed control module comprises a wind speed sensor and a wind speed socket, the base is fixed with an adjusting button, the oscillating sensor and the wind speed sensor are arranged in the circuit board at intervals, the oscillating sensor and the wind speed sensor are electrically connected to the adjusting button, the oscillating socket is electrically connected to the rotating assembly, and the wind speed socket is electrically connected to the fan assembly.

10. The electric fan as claimed in claim 9, wherein a timing component and an indicator light component are fixed on the circuit board, the timing component is electrically connected to the adjusting button, the indicator light component comprises a wind speed indicator light, a power indicator light and a timing indicator light, and the wind speed indicator light, the power indicator light and the timing indicator light enclose a circle.