CN215871069U

CN215871069U - Wide-angle automatic head shaking mechanism

Info

Publication number: CN215871069U
Application number: CN202121241371.0U
Authority: CN
Inventors: 周志荣; 张中华
Original assignee: Guangdong Huijun Technology Group Ltd
Current assignee: Guangdong Huijun Technology Group Ltd
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2022-02-18
Anticipated expiration: 2031-06-03

Abstract

The utility model relates to a wide-angle automatic head shaking mechanism which comprises a rotating mechanism, a fixing mechanism and a synchronous motor, wherein the rotating mechanism is connected with the head of household electrical equipment, the fixing mechanism is connected on a fixing piece of the household electrical equipment, a central shaft of the rotating mechanism is rotationally connected with a central shaft of the fixing mechanism, the synchronous motor is meshed with the fixing mechanism, a resistance boss is arranged beside the central shaft of the rotating mechanism, a first resistance column and a second resistance column are arranged beside the central shaft of the fixing mechanism, and the resistance boss is positioned between the first resistance column and the second resistance column. According to the utility model, the relative rotation of the rotating mechanism and the fixing mechanism is realized in a gear meshing transmission mode, and the resistance columns at two ends of the moving track of the rotating mechanism are collided by the resistance bosses to serve as the feedback of the rotating position, so that the forward and reverse rotating speeds and the rotating distance are consistent, the uniform and stable oscillating process is realized, the oscillating amplitude of the oscillating mechanism is determined by the included angle of the two resistance columns, and the oscillating angle of the oscillating mechanism is greatly improved.

Description

Wide-angle automatic head shaking mechanism

Technical Field

The utility model relates to the field of household appliances, in particular to a wide-angle automatic head shaking mechanism.

Background

In daily life, a plurality of household appliances need oscillating mechanisms, such as fans, fan heaters, vertical air conditioners and the like, and most oscillating mechanisms adopt crank rocker mechanisms with simple structures and low cost.

The crank-rocker mechanism consists of a crank, a rocker and a connecting rod, wherein the crank is a driving rod and rotates at a constant speed in a circumferential manner, the rocker is a driven rod, is connected with the crank through the connecting rod and swings back and forth between a position A and a position B along with the rotation of the crank, and the swinging angle is small; on the other hand, the radian that the crank rotated when the rocker swung to position B from position A and the radian inequality that the crank rotated when the rocker swung to position A from position B were unequal, consequently the rocker had the phenomenon of sharply returning when swinging back, led to shaking the mechanism and often appeared vibrations, the problem of card shell.

Therefore, many household electrical appliances receive the restriction of crank and rocker length because the defect of crank rocker mechanism, lead to its angle of shaking the head small, the process of shaking the head vibrations, the sound is great, card shell scheduling problem.

The above problems are worth solving.

Disclosure of Invention

In order to solve the problems that the oscillating mechanism in the prior art is always vibrated and clamped and has small oscillating amplitude, the utility model provides a wide-angle automatic oscillating mechanism.

The technical scheme of the utility model is as follows:

a wide-angle automatic head shaking mechanism comprises a rotating mechanism, a fixing mechanism and a synchronous motor used for providing rotational kinetic energy, wherein the rotating mechanism is connected with the head of household appliance equipment, the fixing mechanism is connected with a fixing piece of the household appliance equipment, the synchronous motor is connected with the fixing mechanism in a meshing manner and drives a central shaft of the rotating mechanism to be rotationally connected with the central shaft of the fixing mechanism, a resistance boss is arranged beside the central shaft of the rotating mechanism, a first resistance column and a second resistance column are arranged beside the central shaft of the fixing mechanism, the resistance boss is positioned between the first resistance column and the second resistance column, when the rotating mechanism rotates to a limit position, the first resistance column or the second resistance column is in contact with the resistance boss, when the resistance boss moves and collides with the first resistance column or the second resistance column, the synchronous motor changes the direction of rotation.

The utility model according to the above aspect is characterized in that the resistance boss is bullet-shaped with its tapered head portion facing outward.

The utility model according to the above scheme is characterized in that the rotating mechanism comprises a rotating bottom plate, an upper bearing ring and a central shaft sleeve, the upper bearing ring is embedded on the periphery of the rotating bottom plate, the central shaft sleeve is installed in the center of the rotating bottom plate, and the resistance boss is located on the side of the central shaft sleeve.

Furthermore, the central shaft sleeve is fixedly connected with the rotating bottom plate through a check ring, the check ring comprises a circular ring foot and a baffle plate, the circular ring foot is abutted against the central shaft sleeve, and an annular groove is formed between the baffle plate and the central shaft sleeve.

Furthermore, the baffle plate is provided with a plurality of screw holes and is fixedly connected with the rotating bottom plate through screws.

The utility model according to the above scheme is characterized in that the synchronous motor is fixed on the back of the rotating bottom plate, a rotating shaft of the synchronous motor penetrates through the rotating bottom plate and then is connected with an external gear, and the external gear is meshed with the fixing mechanism.

The utility model according to the scheme is characterized in that the upper bearing ring is uniformly provided with a plurality of balls which are connected with the fixing mechanism in a sliding manner.

Further, a plurality of the balls are in sliding contact with the surface of the lower bearing ring of the fixing mechanism.

The utility model according to the scheme is characterized in that the fixing mechanism comprises a fixing bottom plate and a lower bearing ring which are connected in a buckling mode, wherein the lower bearing ring is provided with a circle of internal teeth, and the internal teeth are meshed and connected with an external gear of the synchronous motor.

Further, the fixing mechanism further comprises a bearing cover connected to the fixing bottom plate in a buckled mode, a hanging ring is installed on the bearing cover and comprises a center ring and a first resistance column and a second resistance column which are arranged on the outer side face of the center ring, and the center ring is sleeved on the center shaft sleeve of the rotating mechanism.

Furthermore, the circumference of centre ring evenly is equipped with three screw post, and wherein two screw posts be respectively the first resistance post with the second resistance post, the bearing cap is equipped with the three screw hole that matches with the screw post.

The utility model according to the scheme has the advantages that:

the utility model realizes the relative rotation of the rotating mechanism and the fixing mechanism in a gear meshing transmission mode, and utilizes the resistance bosses to collide with the resistance columns at the two ends of the moving track of the rotating mechanism as the feedback of the rotating position, thereby not only ensuring the positive and negative rotating speeds and the rotating distance to be highly consistent, realizing the uniform speed, stability and smoothness of the head shaking process of the head shaking mechanism and having no vibration noise, and further improving the user experience of household appliances;

on the other hand, the swing amplitude of the oscillating mechanism is determined by utilizing the included angle of the two resistance columns, so that the swing angle of the oscillating mechanism is greatly improved;

furthermore, the rotating mechanism and the fixing mechanism of the utility model adopt a simple structure that the central shafts are sleeved, and balls are used as lubricating devices, so that the friction between the rotating mechanism and the fixing mechanism is reduced, and the rotating stability of the oscillating mechanism is further improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

fig. 4 is a sectional view taken along a-a in fig. 3.

In the figure, 1, a rotation mechanism; 11. rotating the bottom plate; 12. an upper bearing ring; 13. a central shaft sleeve; 14. a retainer ring; 15. a ball bearing; 16. a resistance boss;

2. a fixing mechanism; 21. fixing the bottom plate; 22. a lower bearing ring; 221. internal teeth; 23. a bearing cap; 24. hanging a ring; 241. a first resistance post; 242. a second resistance post;

3. a synchronous motor; 31. an external gear.

Detailed Description

For better understanding of the objects, technical solutions and effects of the present invention, the present invention will be further explained with reference to the accompanying drawings and examples. Meanwhile, the following described examples are only for explaining the present invention, and are not intended to limit the present invention.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upper", "lower", "top", "bottom", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are only for convenience of description and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features.

As shown in fig. 1, 2 and 4, a wide-angle automatic head-shaking mechanism comprises a rotating mechanism 1, a fixing mechanism 2 and a synchronous motor 3 for providing rotational kinetic energy, wherein the rotating mechanism 1 is connected with the head of a household appliance, the fixing mechanism 2 is connected with a fixing piece of the household appliance, the synchronous motor 3 is meshed with the fixing mechanism 2, a central shaft of the rotating mechanism 1 is rotatably connected with a central shaft of the fixing mechanism 2, a resistance boss 16 is arranged beside the central shaft of the rotating mechanism 1, a first resistance column 241 and a second resistance column 242 are arranged beside the central shaft of the fixing mechanism 2, the resistance boss 16 is positioned between the first resistance column 241 and the second resistance column 242, and when the rotating mechanism rotates to a limit position, the first resistance column or the second resistance column is contacted with the resistance boss; when the resistance boss 16 moves and collides with the first resistance post 241 or the second resistance post 242, the synchronous motor 3 changes the rotational direction.

The utility model realizes the relative rotation of the rotating mechanism and the fixing mechanism in a gear meshing transmission mode, and utilizes the resistance bosses to collide with the resistance columns at the two ends of the moving track of the rotating mechanism as the feedback of the rotating position, so that the forward and reverse rotating speeds and the rotating distance are consistent in height.

As shown in fig. 4, in the present embodiment, the rotating mechanism 1 includes a rotating base plate 11, an upper race 12 and a center bushing 13, the upper race 12 is embedded in the periphery of the rotating base plate 11, the center bushing 13 is installed at the center of the rotating base plate 11, and a resistance boss 16 is located beside the center bushing 13.

The outer periphery of the rotating bottom plate 11 is provided with a circle of grooves, the grooves are also provided with inserting ports, the upper bearing ring 12 is embedded into the grooves, and the upper bearing ring is provided with inserting pins, so that the upper bearing ring 12 can be conveniently and detachably mounted on the rotating bottom plate 11. The center of the rotating bottom plate 11 is provided with a shaft seat for fixing the central shaft sleeve 13, the shaft seat is circular, and the outer diameter of the shaft seat is smaller than the inner diameter of a hole of the central shaft sleeve 13, so that the central shaft sleeve 13 can be conveniently buckled on the shaft seat.

In a preferred scheme, the resistance boss 16 is bullet-shaped, and the conical head of the resistance boss faces outwards, so that the collision surface of the resistance boss and the resistance column is an arc surface, and the arc surface design can provide structural compensation and compensate collision distance errors on two sides when the resistance boss is assembled and slightly askew.

As shown in fig. 3, in the present embodiment, the central shaft sleeve 13 is fixedly connected to the rotating base plate 11 through a retaining ring 14, the retaining ring 14 includes a circular ring leg and a baffle plate, the circular ring leg abuts against the central shaft sleeve 13, the baffle plate is provided with a plurality of screw holes, screws sequentially pass through the screw holes of the baffle plate, the central hole of the circular ring leg and the central hole of the central shaft sleeve 13, and are finally screwed to the base of the rotating base plate 11, so that the baffle plate is fixed to the rotating base plate 11, that is, the central shaft sleeve 13 is fixed, and an annular groove is formed between the baffle plate and the central shaft sleeve 13, and the annular groove is used for placing the hanging ring 24.

In this embodiment, the synchronous motor 3 is fixed on the back of the rotating base plate 11, and the rotating shaft of the synchronous motor 3 passes through the rotating base plate 11 and then is connected with an external gear 31, when the synchronous motor 3 operates, the external gear 31 rotates accordingly, and the external gear 31 is meshed with the fixing mechanism 2 to drive the fixing mechanism to rotate relative to the rotating mechanism.

In this embodiment, the upper bearing ring 12 is uniformly provided with a plurality of balls 15 slidably connected with the fixed mechanism 2, the plurality of balls 15 are in surface sliding contact with the lower bearing ring 22 of the fixed mechanism 2, and the balls are used as a lubricating device, so that friction between the rotating mechanism and the fixed mechanism can be reduced, and the rotating stability of the oscillating mechanism can be improved.

As shown in fig. 2, in the present invention, the fixing mechanism 2 includes a fixing base plate 21 and a lower bearing ring 22 which are snap-connected, the lower bearing ring 22 is provided with a ring of internal teeth 221, the internal teeth 221 are engaged with the external gear 31 of the synchronous motor, when the external gear rotates under the driving of the synchronous motor, the upper bearing ring 12 is driven to rotate, and the fixing base plate 21 is driven to rotate.

The fixing mechanism 2 further comprises a bearing cover 23 connected to the fixing bottom plate 21 in a buckling manner, the bearing cover 23 is provided with a hanging ring 24, the hanging ring 24 comprises a central ring and a first resistance column 241 and a second resistance column 242 which are arranged on the outer side surface of the central ring, and the central ring is sleeved on the central shaft sleeve 13 of the rotating mechanism 1. The hanging ring 24 of the fixing mechanism 2 is rotatably connected with the central shaft sleeve 13 of the rotating mechanism 1, so that a stable foundation is provided for the rotation of the rotating mechanism and the fixing mechanism, the swinging in the rotating process can be avoided, and the stability is further improved.

As shown in fig. 4, in the present invention, three screw columns are uniformly arranged in the circumferential direction of the center ring, two of the three screw columns are a first resistance column 241 and a second resistance column 242, respectively, and the bearing cap 23 is provided with three screw holes matched with the screw columns. The screw column and the resistance column are shared, so that the structure is simplified, the space occupancy rate is saved, and the whole mechanism is small in size and high in stability.

In conclusion, the rotating mechanism and the fixing mechanism rotate relatively in a gear meshing transmission mode, and the resistance bosses are used for colliding with the resistance columns at two ends of the moving track of the rotating mechanism to serve as feedback of the rotating position, so that the head shaking process of the head shaking mechanism is uniform, stable and smooth, no vibration noise exists, and the user experience of household appliances is improved; the oscillating mechanism is ingenious in design, simple in structure, stable in operation and convenient to install as an integral component, so that the assembly difficulty of household appliances is reduced.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a wide-angle automatic head shaking mechanism, includes slewing mechanism, fixed establishment and is used for providing the synchronous machine who rotates kinetic energy, slewing mechanism connects the head of household electrical appliances, fixed establishment connects on household electrical appliances's mounting, a serial communication port, slewing mechanism's center pin with fixed establishment's center pin rotates and connects, synchronous machine with the fixed establishment meshing is connected, the other resistance boss that is equipped with of slewing mechanism's center pin, the other first resistance post and the second resistance post of being equipped with of fixed establishment's center pin, the resistance boss is located first resistance post with between the second resistance post, just when slewing mechanism rotates to extreme position, first resistance post or the second resistance post with the contact of resistance boss.

2. A wide-angle automatic pan mechanism as claimed in claim 1, wherein the rotation mechanism comprises a rotation base plate, an upper bearing ring and a central bushing, the upper bearing ring is embedded in the periphery of the rotation base plate, the central bushing is installed at the center of the rotation base plate, and the resistance boss is located beside the central bushing.

3. A wide angle automatic head shaking mechanism as claimed in claim 2, wherein the central hub is fixedly connected to the rotating base plate via a retainer ring, the retainer ring comprising a circular leg and a baffle, the circular leg abutting against the central hub, the baffle forming an annular groove with the central hub.

4. A wide-angle automatic pan mechanism as claimed in claim 2, wherein the synchronous motor is fixed on the back of the rotating base plate, and the rotating shaft of the synchronous motor passes through the rotating base plate and then is connected with an external gear, and the external gear is engaged with the fixing mechanism.

5. A wide angle automatic head mechanism as claimed in claim 2, wherein the upper race has a plurality of balls slidably connected to the fixing mechanism.

6. A wide-angle automatic pan mechanism as claimed in claim 2, wherein the fixing mechanism comprises a fixing base plate and a lower bearing ring which are snap-fit connected, the lower bearing ring is provided with a ring of internal teeth, and the internal teeth are meshed with the external gear of the synchronous motor.

7. The wide-angle automatic pan mechanism of claim 6, wherein the fixing mechanism further comprises a bearing cap which is connected to the fixing bottom plate in a snap-fit manner, the bearing cap is provided with a suspension ring, the suspension ring comprises a center ring and the first resistance column and the second resistance column which are arranged on the outer side surface of the center ring, and the center ring is sleeved on the center shaft sleeve of the rotating mechanism.

8. A wide-angle automatic pan mechanism as claimed in claim 7, wherein the center ring has three screw posts uniformly arranged along the circumference, two of the screw posts are the first resistance post and the second resistance post, and the bearing cap has three screw holes matching with the screw posts.