CN213360517U

CN213360517U - Oscillating mechanism of electric fan

Info

Publication number: CN213360517U
Application number: CN202022064969.9U
Authority: CN
Inventors: 沈吉荣; 曹志顺
Original assignee: Ningbo Ciyang Electric Appliance Co ltd
Current assignee: Ningbo Ciyang Electric Appliance Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-06-04
Anticipated expiration: 2030-09-18

Abstract

The utility model relates to an electric fan's mechanism of shaking head, including the control box that has the inner chamber and set up the fixing base in the inner chamber, the fan head connects, synchronous machine, drive gear and bumping post, the fixing base is connected with the control box, the fan head connects and fixing base rotatable coupling, the fan head connects one end and stretches out outside the control box and be used for being connected with the fan head of electric fan, synchronous machine connects on the fixing base, drive gear is connected with synchronous machine's motor shaft, the fan head connects the other end and is equipped with circular tooth's socket, be equipped with the internal gear on the circumference wall of circular tooth's socket, drive gear be located circular tooth's socket and with the internal gear meshing, the bumping post is connected on the fixing base, be equipped with annular slot on the fan head connects, bumping post one end movably inserts in annular. The utility model has the advantages that: simple structure, low manufacturing cost, small volume, wide application range and large shaking angle.

Description

Oscillating mechanism of electric fan

Technical Field

The utility model relates to a fan technical field specifically is an electric fan's mechanism of shaking head.

Background

The electric fan is one of the most technically mature products in the household appliance industry. The investigation shows that the fan is positioned to face the human body and is not beneficial to health, so that the electric fan generally has a head shaking function. The existing electric fan oscillating mechanism is mostly used for realizing oscillating under the working action of a synchronous motor and a crank rocker mechanism, the rotating angle of the oscillating mechanism is limited in the operation process, and meanwhile, the oscillating mechanism has interference damage to parts and oscillating blind areas. In order to solve the technical problems, some electric fans adopt 360-degree rotating mechanisms, but the mechanisms are generally complex in structure and large in size, not only are the manufacturing difficulty high and the manufacturing cost high, but also the application range of the electric fans is greatly reduced due to the large size.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a mechanism of shaking head of electric fan that simple structure, low in manufacturing cost, small, application scope is wide, shakes the head angle big.

In order to solve the technical problem, the utility model provides an oscillating mechanism of an electric fan with the following structure, which comprises a control box with an inner cavity, a fixed seat arranged in the inner cavity and a fan head joint, synchronous machine, drive gear and bumping post, the fixing base is connected with the control box, the fan head connects and fixing base rotatable coupling, the fan head connects one end and stretches out outside the control box and be used for being connected with the fan head of electric fan, synchronous machine connects on the fixing base, drive gear is connected with synchronous machine's motor shaft, the fan head connects the other end and is equipped with circular tooth's socket, be equipped with the internal gear on the circumference wall of circular tooth's socket, drive gear is located circular tooth's socket and meshes with the internal gear, the bumping post is connected on the fixing base, the fan head connects and is equipped with annular slot, bumping post one end movably inserts in annular slot, be equipped with in the annular slot be used.

After adopting above-mentioned structure, compare with prior art, the utility model has the advantages of it is following: the oscillating mechanism of the electric fan adopts simple gear transmission to replace a crank rocker mechanism, so that the structure is simpler and the manufacturing cost is low; and the meshing structure of drive gear and internal gear not only small in size for application scope greatly increased, under the interact of bumping post and dog moreover, can also realize that the fan head of electric fan is close 360 big-angle of shaking the head, thereby effectively avoid the electric fan blind area of shaking the head.

Electric fan's mechanism of shaking head, wherein, still include the bearing, be equipped with the shaft hole on the fixing base, fan head connects one end and is equipped with the pivot, the pivot is inserted in the shaft hole, and pivot one end stretch out outside the control box and be used for being connected with the fan head of electric fan, the bearing is connected between pivot periphery wall and shaft hole internal perisporium.

Above-mentioned structure can greatly increased the utility model relates to an electric fan's the mechanism of shaking the head's job stabilization nature reduces the shake that the fan head connects the utility model relates to an electric fan's the mechanism of shaking the head's noise in use.

Electric fan's mechanism of shaking head, wherein, the internal perisporium one end in shaft hole is equipped with the bearing installation groove, the bearing setting is in the bearing installation groove, and the internal perisporium tight fit of the periphery wall of bearing and bearing installation groove.

Electric fan shake head mechanism, wherein, circumference equipartition has many axial inner convex muscle on the internal perisporium of bearing mounting groove, the lateral wall and the interior convex muscle tight fit of many axial of bearing.

The structure not only facilitates the assembly of the bearing, but also ensures that the bearing and the fixed seat are more firmly fixed.

The oscillating mechanism of the electric fan, wherein, the inner peripheral wall of the bearing mounting groove gradually inclines inwards from the notch to the groove bottom.

The above structure can further facilitate the assembly of the bearing.

Electric fan's mechanism of shaking head, wherein, the periphery wall circumference equipartition of pivot has many axial evagination muscle, the internal perisporium and many axial evagination muscle tight fit of bearing.

The structure not only facilitates the assembly of the bearing, but also ensures that the bearing and the rotating shaft are more firmly fixed.

Electric fan shake head mechanism, wherein, the periphery wall of pivot begins to lean out along the axis gradually from the free end.

The above structure can further facilitate the assembly of the bearing.

Electric fan's oscillating mechanism, wherein, still include the motor cabinet, the motor cabinet is connected on the fixing base to shelter from annular slot's notch, synchronous machine connects on the motor cabinet.

The structure is convenient for mounting and fixing the synchronous motor, and can also effectively shield the transmission gear and the internal gear, thereby playing the role of protecting the transmission gear and the internal gear and ensuring that the transmission gear and the internal gear are not easy to damage.

Electric fan's mechanism of shaking head, wherein, be equipped with convex slide opening on the fixing base, convex slide opening connects coaxial setting with the fan head, fender post middle part movably connects in convex slide opening.

Above-mentioned structure can be when the arbitrary one side of bumping post receives the dog collision, makes the bumping post remove to the convex slide opening other end from convex slide opening one end, vacates the rotation space for the dog to can make the fan head of electric fan can realize complete 360 shakes the head, reach the purpose of avoiding the electric fan blind area of shaking the head completely to appear.

Electric fan's mechanism of shaking head, wherein, still including the apron, the bumping post middle part still is equipped with spacing bulge loop, is equipped with convex spacing groove on the fixing base, spacing bulge loop movably is located convex spacing inslot, the notch of cover connection on the fixing base and cover convex spacing groove is equipped with the convex guide way of indent on the apron, the other end movably of bumping post is located convex guide way.

The structure is convenient for assembling the retaining column, and the retaining column can move more smoothly when being collided by the stop block, so that the retaining column is effectively prevented from being clamped in the moving process.

Drawings

Fig. 1 is a schematic perspective view of an oscillating mechanism of an electric fan according to the present invention;

FIG. 2 is a vertical semi-sectional view of an oscillating mechanism of an electric fan according to the present invention;

fig. 3 is an exploded view of the oscillating mechanism of an electric fan of the present invention with the control box removed;

fig. 4 is a schematic perspective view of a fan head joint in an oscillating mechanism of an electric fan according to the present invention;

fig. 5 is a schematic perspective view of a fixing base in an oscillating mechanism of an electric fan according to the present invention;

fig. 6 is a schematic view of a three-dimensional structure of a cover plate in an oscillating mechanism of an electric fan.

Description of reference numerals: 1. a control box; 1a, a box cover; 1b, a cartridge; 2. an inner cavity; 3. a fixed seat; 4. a fan head joint; 5. a synchronous motor; 6. a transmission gear; 7. a bumping post; 8. a circular tooth socket; 9. an internal gear; 10. an annular slot; 11. a stopper; 12. a through hole; 13. a bearing; 14. a shaft hole; 15. a rotating shaft; 16. a bearing mounting groove; 17. an axial inward convex rib; 18. an axially outward projecting rib; 19. a motor base; 20. connecting columns; 21. a circular arc-shaped sliding hole; 22. a cover plate; 23. a limit convex ring; 24. a circular arc-shaped limiting groove; 25. circular arc guide way.

Detailed Description

The following describes an oscillating mechanism of an electric fan in further detail with reference to the accompanying drawings and embodiments.

As shown in fig. 1 to 6, the oscillating mechanism of an electric fan of the present invention comprises a control box 1 having an inner cavity 2, and a fixing base 3 disposed in the inner cavity 2, a fan head joint 4, a synchronous motor 5, a transmission gear 6 and a retaining post 7, wherein the fixing base 3 is connected to the control box 1, the fan head joint 4 is rotatably connected to the fixing base 3, one end of the fan head joint 4 extends out of the control box 1 and is used for connecting to a fan head of the electric fan, the synchronous motor 5 is connected to the fixing base 3, the transmission gear 6 is connected to a motor shaft of the synchronous motor 5, the other end of the fan head joint 4 is provided with a circular tooth space 8, an internal gear 9 is disposed on a circumferential wall of the circular tooth space 8, the transmission gear 6 is disposed in the circular tooth space 8 and is engaged with the internal gear 9, the retaining post 7 is connected to the fixing base 3, the fan head joint, a stop block 11 matched with one end of the stop post 7 is arranged in the annular slot 10; in this embodiment, the control box 1 is formed by connecting a box cover 1a and a box cylinder 1b, a through hole 12 for allowing one end of a fan head joint 4 to pass through is formed in the box cover 1a, the fixed seat 3 is connected to the box cover 1a, and the lower end of the box cylinder 1b is used for being connected with a vertical supporting rod of the electric fan; the control box 1 is used for installing a switch button, a control circuit and the like, and a conventional threaded fastener fixed connection structure is adopted between the fan head joint 4 and the fan head of the electric fan, which are conventional technologies, so that the details are not described herein.

The utility model relates to an electric fan's mechanism of shaking head still includes bearing 13, is equipped with shaft hole 14 on the fixing base 3, and the fan head connects 4 one ends and is equipped with pivot 15, and pivot 15 is inserted in

shaft hole

14, and 15 one ends of pivot stretch out control box 1 outer and be used for with the fan head of electric fan be connected, bearing 13 is connected between 15 periphery walls of pivot and 14 internal perisporium in the shaft hole.

Preferably, one end of the inner peripheral wall of the shaft hole 14 is provided with a bearing installation groove 16, the bearing 13 is arranged in the bearing installation groove 16, and the outer peripheral wall of the bearing 13 is tightly matched with the inner peripheral wall of the bearing installation groove 16.

Preferably, a plurality of axial inner ribs 17 are uniformly distributed on the inner peripheral wall of the bearing mounting groove 16 in the circumferential direction, and the outer side wall of the bearing 13 is tightly matched with the plurality of axial inner ribs 17.

Preferably, the inner peripheral wall of the bearing-mounting groove 16 is gradually inclined inward from the notch to the groove bottom.

Preferably, a plurality of axial outer ribs 18 are uniformly distributed on the peripheral wall of the rotating shaft 15 in the circumferential direction, and the inner peripheral wall of the bearing 13 is tightly matched with the plurality of axial outer ribs 18.

Preferably, the peripheral wall of the shaft 15 is inclined gradually outward along the axis from the free end.

The oscillating mechanism of the electric fan of the utility model also comprises a motor base 19, the motor base 19 is connected on the fixed base 3 and shields the notch of the annular slot 10, and the synchronous motor 5 is connected on the motor base 19; in this embodiment, three connection posts 20 are disposed at one end of the fixing base 3, and the motor base 19 is connected to the three connection posts 20.

Preferably, the fixed seat 3 is provided with an arc-shaped sliding hole 21, the arc-shaped sliding hole 21 and the fan head joint 4 are coaxially arranged, and the middle part of the bumping post 7 is movably connected in the arc-shaped sliding hole 21.

The utility model relates to an electric fan's mechanism of shaking head still includes apron 22, 7 middle parts of bumping post still are equipped with spacing bulge loop 23, be equipped with convex spacing groove 24 on the fixing base 3, spacing bulge loop 23 movably is located convex spacing groove 24, apron 22 connects on fixing base 3 and covers convex spacing groove 24's notch, be equipped with the convex guide way 25 of upper groove on the apron 22, the other end movably of bumping post 7 is located convex guide way 25, convex spacing groove 24, convex guide way 25 all connects 4 coaxial settings with the fan head.

The above embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides an electric fan's mechanism of shaking head which characterized in that: the electric fan comprises a control box (1) with an inner cavity (2), a fixed seat (3), a fan head joint (4), a synchronous motor (5), a transmission gear (6) and a retaining column (7), wherein the fixed seat (3) is arranged in the inner cavity (2), the fan head joint (4) is connected with the control box (1), the fan head joint (4) is rotatably connected with the fixed seat (3), one end of the fan head joint (4) extends out of the control box (1) and is used for being connected with a fan head of an electric fan, the synchronous motor (5) is connected onto the fixed seat (3), the transmission gear (6) is connected with a motor shaft of the synchronous motor (5), a circular tooth groove (8) is formed in the other end of the fan head joint (4), an inner gear (9) is arranged on the circumferential wall of the circular tooth groove (8), the transmission gear (6) is positioned in the circular tooth groove (8), the fan head connector is characterized in that the retaining column (7) is connected to the fixing seat (3), an annular slot (10) is formed in the fan head connector (4), one end of the retaining column (7) is movably inserted into the annular slot (10), and a stop block (11) matched with one end of the retaining column (7) is arranged in the annular slot (10).

2. The oscillating mechanism of an electric fan according to claim 1, wherein: still include bearing (13), be equipped with shaft hole (14) on fixing base (3), fan head connects (4) one end and is equipped with pivot (15), insert in shaft hole (14) pivot (15), just pivot (15) one end is stretched out outside control box (1) and is used for being connected with the fan head of electric fan, bearing (13) are connected between pivot (15) periphery wall and shaft hole (14) internal perisporium.

3. The oscillating mechanism of an electric fan according to claim 2, characterized in that: the bearing is characterized in that a bearing mounting groove (16) is formed in one end of the inner peripheral wall of the shaft hole (14), the bearing (13) is arranged in the bearing mounting groove (16), and the outer peripheral wall of the bearing (13) is in tight fit with the inner peripheral wall of the bearing mounting groove (16).

4. The oscillating mechanism of an electric fan according to claim 3, wherein: a plurality of axial inner convex ribs (17) are circumferentially and uniformly distributed on the inner peripheral wall of the bearing mounting groove (16), and the outer side wall of the bearing (13) is tightly matched with the plurality of axial inner convex ribs (17).

5. The oscillating mechanism of an electric fan according to claim 4, wherein: the inner peripheral wall of the bearing mounting groove (16) is gradually inclined inwards from the notch to the groove bottom.

6. The oscillating mechanism of an electric fan according to claim 2, characterized in that: the periphery wall circumference equipartition of pivot (15) has many axial outer convex rib (18), the internal perisporium of bearing (13) and many axial outer convex rib (18) tight fit.

7. The oscillating mechanism of an electric fan according to claim 6, wherein: the peripheral wall of the shaft (15) is inclined gradually outward from the free end along the axis.

8. The oscillating mechanism of an electric fan according to claim 1, wherein: still include motor cabinet (19), motor cabinet (19) are connected on fixing base (3), and shelter from the notch of annular slot (10), synchronous machine (5) are connected on motor cabinet (19).

9. The oscillating mechanism of an electric fan according to claim 1, wherein: the fan head connector is characterized in that the fixed seat (3) is provided with an arc-shaped sliding hole (21), the arc-shaped sliding hole (21) and the fan head connector (4) are coaxially arranged, and the middle part of the retaining column (7) is movably connected in the arc-shaped sliding hole (21).

10. The oscillating mechanism of an electric fan according to claim 9, wherein: still include apron (22), bumping post (7) middle part still is equipped with spacing bulge loop (23), be equipped with convex spacing groove (24) on fixing base (3), spacing bulge loop (23) movably is located convex spacing groove (24), apron (22) are connected on fixing base (3) and are covered the notch of convex spacing groove (24), be equipped with convex guide way (25) of upper concave on apron (22), the other end movably of bumping post (7) is located convex guide way (25).