CN207500169U - Oscillating head mechanism - Google Patents

Abstract

The utility model discloses a kind of oscillating head mechanisms, including can backwards rotation motor, the driving gear that is fixedly connected with the shaft of motor and the driven gear being meshed with the driving gear, further include stent, stent is fixedly connected with the driving gear, it is rotatably attached with the driven gear, it is respectively arranged with position limiting structure on stent and driven gear, when the position limiting structure on stent is mutually touched with the position limiting structure on driven gear, makes the motor backwards rotation.The utility model is not needed to using timing converter come setting time, control can inversely rotary electric machine electrode convert, to change the rotation direction of motor, but it is mutually touched with movable limit assembly or fixed locating part by limit assembly movable in oscillating head mechanism operation process, make the motor backwards rotation, it is simple and reliable for structure, it is highly practical.

Description

Swing mechanism

technical field

The utility model relates to the field of fans, in particular to a head swing mechanism.

Background technique

A Chinese utility model patent with the application number CN200520000754.3 and titled "A Novel Rotating Head Fan" discloses a head swing mechanism, a pole and a bracket mounted on the pole, and the bracket is rotatable Installed on the vertical rod, there is a passive gear with the vertical rod as the axis below the bracket, and a reversible motor is installed on the bracket away from the position of the vertical rod axis, and its rotating shaft is parallel to the vertical rod. A rotating driving gear is fixed on the top, the passive gear and the driving gear are meshed with each other, and an electrical connection plate is fixed on the bottom of the pole with the pole as the center. The ring-shaped conductive ring, the bracket has at least two brush holes, the holes are equipped with springs and brushes, and the brushes are kept in contact with the ring-shaped conductive ring on the electrical connection plate under the force of the spring to provide power.

The oscillating head mechanism in the prior art uses a timing converter to set the time, controls the electrode switching of the reversible rotating motor, and obtains the required rotation angle. The structure is complex and the cost is high. Moreover, once it is produced, the swing angle cannot be changed arbitrarily, the fan cannot be effectively used, and thus the diversified needs of consumers cannot be met.

Utility model content

The technical problem to be solved by the utility model is to provide a head swing mechanism, which has the characteristics of simple structure, practicality, and multi-angle switching.

In order to solve the problems of the technologies described above, the technical solution provided by the utility model is:

A swinging head mechanism, comprising a motor capable of reversing rotation, a driving gear fixedly connected to the rotating shaft of the motor, and a driven gear meshed with the driving gear, and a bracket fixedly connected to the driving gear and connected to the The driven gear is rotatably connected, and the bracket and the driven gear are respectively provided with limiting structures. When the limiting structure on the bracket touches the limiting structure on the driven gear, the motor will rotate in reverse.

Further, the limiting structure includes a movable limiting component and a fixed limiting member.

This technical solution does not need to use a timing converter to set the time, control the electrode conversion of the reversible rotating motor to change the direction of rotation of the motor, but uses the movable limit assembly and the movable limit assembly or fixed The limit parts touch each other to make the motor reversely rotate, the structure is simple and reliable, and the practicability is strong.

Further, there are multiple movable limiting components.

In this technical solution, by changing the number or angle of the movable limiting components, even if the swing head mechanism is produced, consumers can freely change the swing angle according to needs, effectively using the fan, and meeting the diverse needs of consumers.

Further, there are multiple fixed limiters.

In the technical solution, the swing angle of the swing head mechanism is changed by changing the number of fixed limit pieces, so as to realize multi-angle switching.

Further, the bracket is provided with a movable limiting assembly, and the driven gear is provided with a fixed limiting member.

Further, the bracket is provided with a fixed limiter, and the driven gear is provided with a movable limiter assembly.

Further, the bracket and the driven gear are respectively provided with movable limiting components.

Further, the movable limiting assembly includes a limiting hole opened on the bracket and a movable limiting member matched with the limiting hole.

Further, the movable limiting member is a screw or a pin.

The movable limiting part of the technical solution can be easily disassembled or installed from the limiting hole, which is convenient for consumers to operate by themselves.

Further, the fixed limiting member is a raised limiting rib.

Further, the bracket includes a connecting plate and a connecting shaft, the movable limiting assembly or the fixed limiting member is protrudingly arranged on the connecting plate, and the driven gear is rotatably sleeved on the connecting shaft.

Beneficial effects of the utility model: the utility model does not need to use a timing converter to set the time and control the electrode conversion of the reversible rotating motor to change the rotation direction of the motor, but uses the movable limit assembly during the operation of the swing head mechanism The motor is in contact with the movable limiting component or the fixed limiting member to make the motor reversely rotate, the structure is simple and reliable, and the practicability is strong. And by changing the number or angle of the movable limit components, even if the swing head mechanism is produced, consumers can change the swing angle at will according to needs, effectively using the fan, and satisfying the diverse needs of consumers.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of a preferred embodiment of the swing head mechanism of the utility model;

Fig. 2 is a schematic side sectional view of a preferred embodiment of the swing head mechanism of the present invention;

Fig. 3 is a schematic diagram of a three-dimensional structure of a preferred embodiment of the utility model bracket;

Fig. 4 is a three-dimensional structural schematic diagram of a preferred embodiment of the utility model driven gear;

Fig. 5 is a schematic top view of a preferred embodiment of the driven gear of the present invention;

Fig. 6 is a schematic top view of a preferred embodiment of the connecting plate of the present invention;

Fig. 7 is a three-dimensional structural schematic diagram of another preferred embodiment of the driven gear of the present invention;

Fig. 8 is a schematic top view of another preferred embodiment of the driven gear of the present invention.

Reference signs include:

100-motor 110-rotating shaft 200-bracket

210-connection plate 211-motor hole 212-connection hole

220-connecting shaft 230-upper part 240-movable limit assembly

241-Limiting hole 242-Active limiter 300-Drive gear

400-passive gear 410-fixed limit piece 420-connecting part

421-cylindrical cavity 500-lower part

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Example 1

As shown in FIGS. 1-8 , a swinging head mechanism includes a motor 100 that can rotate in reverse, a driving gear 300 fixedly connected to the rotating shaft 110 of the motor 100 and a driven gear 400 meshing with the driving gear 300 , which It is characterized in that: it also includes a bracket 200, the bracket 200 is fixedly connected with the driving gear 300, and is rotatably connected with the driven gear 400, the bracket 200 and the driven gear 400 are respectively provided with a limit structure, the limit structure on the bracket 200 When touching the limiting structure on the driven gear 400, the motor 100 is rotated in reverse. The limiting structure includes a movable limiting component 240 and a fixed limiting member 410 . The above components are described in further detail below.

Fig. 1 and Fig. 2 are respectively the three-dimensional schematic view and the side sectional view of the swinging head mechanism, as can be seen from the figure, in this embodiment, a reversible motor 100 is arranged on the bracket 200 deviated from the axis A, the motor 100 A rotating shaft 110 is included, and the rotating shaft 110 is parallel to the axis A. In this embodiment, the motor 100 is a motor for control, such as a stepping motor or a servo motor.

As shown in FIGS. 2 and 3 , the bracket 200 includes a connecting plate 210 , a connecting shaft 220 and an upper part 230 . In order to increase the reliability of the swing head mechanism, the connecting plate 210, the connecting shaft 220 and the upper part 230 are preferably integrally formed of iron or stainless steel.

As shown in FIG. 4 , the connecting plate 210 is in the shape of a plate as a whole, and is horizontally fixed under the motor 100 , and a motor hole 211 and a connecting hole 212 are opened thereon. The motor hole 211 is opened at a position deviated from the axis A, and the rotating shaft 110 of the motor 100 passes through the motor hole 211 and is connected with the driving gear 300 . The connection hole 212 is defined at a position coaxial with the axis A, and a cylindrical connection shaft 220 is formed extending downward from the edge of the connection hole 212 .

Referring to FIG. 2 and FIG. 3 , the cross section of the upper part 230 is generally “concave” shape, is arranged around the motor 100 , is fixedly connected with the connecting plate 210 , and extends upward from the connecting plate 210 . The upper part 230 can match with other mechanisms, for example, be fixedly connected with the air guiding surface of the fan (not shown in the figure).

As shown in FIGS. 2 and 3 , the movable limiting assembly 240 includes a limiting hole 241 and a movable limiting member 242 . The limiting hole 241 is opened on the connecting plate 210 around the connecting hole 212 . The limiting hole 241 is preferably provided with an internal thread. At this time, the movable limiting member 242 is a screw with an external thread, and the external thread and the above-mentioned internal thread can match each other. In other embodiments of the present application, the movable limiting member 242 may also be a pin. The movable limiting member 242 can be inserted into the limiting hole 241 , protrudes from the lower surface of the connecting plate 210 , and can also be removed from the limiting hole 241 as required.

As shown in FIGS. 1 and 2 , the swing mechanism further includes a driving gear 300 disposed below the connecting plate 210 . The driving gear 300 is sleeved on the rotating shaft 110 of the motor 100 , is fixedly connected with the rotating shaft 110 , and can rotate back and forth around the axis where the rotating shaft 110 is driven by the motor 100 .

As shown in FIG. 2 , the bracket 200 is rotatably connected to the driven gear 400 , the driven gear 400 is arranged under the connecting plate 210 of the bracket 200 , and is rotatably sleeved on the connecting shaft 220 of the bracket 200 through the connecting portion 420 , And meshes with the driving gear 300 . Driven by the driving gear 300 , the driven gear 400 rotates around the connecting shaft 220 back and forth.

Referring to FIG. 4 again, the connecting portion 420 is a component having a cylindrical cavity 421 , and the cylindrical cavity 421 cooperates with the connecting shaft 220 so that the connecting shaft 220 can rotate freely in the cylindrical cavity 421 . The upper end of the connecting portion 420 slightly protrudes from the upper surface of the driven gear 400 , and the lower end of the connecting portion 420 protrudes from the lower surface of the driven gear 400 and extends downward.

Referring back to FIG. 1 and FIG. 2 , the lower end of the connecting portion 420 is also fixedly connected with the lower part 500 . The lower part 500 can match with other mechanisms, for example, be fixedly connected with the base of the fan (not shown in the figure).

The fixed limiting member 410 protrudes from the upper surface of the driven gear 400 . In this embodiment, the fixed limiting member 410 is a limiting rib fixed on the outer wall of the upper end of the connecting portion 420 .

As shown in FIG. 5 , when the movable limit assembly 240 touches the fixed limit member 410 , the motor 100 rotates in the opposite direction, for example, the swing angle of the swing mechanism in the figure is 349°.

The movement of the swing head mechanism in this embodiment is as follows: because the motor 100 can drive the driving gear 300 to rotate, the driving gear 300 is fixedly connected with the connecting plate 210, and the connecting plate 210 is provided with a movable limit assembly 240, so the motor 100 can drive the movement The limit assembly 240 rotates. And because the driven gear 400 meshes with the driving gear 300 , the connecting plate 210 is rotatably connected to the driven gear 400 , and the fixed limiting member 410 is arranged on the driven gear 400 . Therefore, driven by the motor 100 , the movable limiting assembly 240 and the fixed limiting member 410 can rotate relatively. When the fixed limiter 410 moves to touch the movable limiter assembly 240, the motor 100 automatically drives the driving gear 300 to rotate in the opposite direction, and when the fixed limiter 410 moves to touch the movable limiter assembly 240 again At this time, the motor 100 automatically drives the driving gear 300 to change the direction of motion again, reciprocating in this way, and finally realizes the function of swinging the head.

Example 2

This embodiment is substantially the same as Embodiment 1, except that there are multiple movable limiting components 240 .

As shown in Figure 6, there are three limit holes 241 in the movable limiter assembly 240 among the figure, since the movable limiter 242 can be removed from the limiter hole 241, it is possible to change the number and position of the movable limiter 242 to change the swing angle.

When the two movable limiters 242 are respectively located at positions B and C in the figure, the angle of the swing head is 316°. However, when the two movable limiters 242 are respectively located at positions B and D in the figure, the angle of the swing head is 273°.

Since the movable limiting member 242 can be removed from the limiting hole 241 at will, even if the swing head mechanism is produced, the consumer can change the swinging angle as needed, effectively utilizing the fan, and satisfying the diverse needs of consumers.

Example 3

This embodiment is substantially the same as Embodiment 1, except that there are multiple fixed limiters 410 distributed around the connection hole 212 .

As shown in Figure 7 and Figure 8, there are two fixed limiters 410 in the figure, and the swing angle of the swing head mechanism in the figure is 289°.

In this embodiment, by changing the number and angle of the fixed limiters 410 on the driven gear 400, the swing angle of the swing head mechanism is changed to realize multi-angle switching.

Example 4

This embodiment is substantially the same as Embodiment 1, except that the movable limiting assembly 240 is protrudingly disposed on the upper surface of the driven gear 400 , and the fixed limiting member 410 is protrudingly disposed on the lower surface of the connecting plate 210 .

Example 5

This embodiment is substantially the same as Embodiment 1, except that the fixed limiter 410 is not included in this embodiment, and the movable limiter assembly 240 is not only arranged on the connecting plate 210, but also protrudingly arranged on the driven gear 400. on the upper surface.

The above content is only a preferred embodiment of the present utility model, for those of ordinary skill in the art, according to the idea of the present utility model, many changes can be made in the specific implementation and application scope, as long as these changes do not depart from the scope of the present utility model Design, all belong to the protection domain of the present utility model.

Claims (10)

1. a kind of oscillating head mechanism, including can backwards rotation motor (100), be fixedly connected with the shaft (110) of motor (100) Driving gear (300) and the driven gear (400) being meshed with the driving gear (300), it is characterised in that：Further include stent (200), stent (200) is fixedly connected with the driving gear (300), is rotatably attached with the driven gear (400), branch It is respectively arranged with position limiting structure on frame (200) and driven gear (400), position limiting structure and driven gear on stent (200) (400) when the position limiting structure on is mutually touched, make the motor (100) backwards rotation.

2. oscillating head mechanism according to claim 1, it is characterised in that：The position limiting structure includes movable limit assembly (240) and fixed locating part (410).

3. oscillating head mechanism according to claim 2, it is characterised in that：The number of the activity limit assembly (240) has more It is a.

4. oscillating head mechanism according to claim 2, it is characterised in that：The number of the fixed locating part (410) has multiple.

5. oscillating head mechanism according to claim 2, it is characterised in that：The activity limit is provided on the stent (200) Hyte part (240) is provided with the fixed locating part (410) on the driven gear (400).

6. oscillating head mechanism according to claim 2, it is characterised in that：The fixed limit is provided on the stent (200) Position part (410) is provided with the movable limit assembly (240) on the driven gear (400).

7. oscillating head mechanism according to claim 2, it is characterised in that：The stent (200) and the driven gear (400) On be respectively arranged with the movable limit assembly (240).

8. oscillating head mechanism according to claim 2, it is characterised in that：The activity limit assembly (240) is including being opened in Limit hole (241) on stent (200) and with the matched movable locating part (242) of the limit hole (241).

9. oscillating head mechanism according to claim 8, it is characterised in that：The activity locating part (242) is screw or pin.

10. oscillating head mechanism according to claim 2, it is characterised in that：The stent (200) including connecting plate (210) and Connecting shaft (220), the activity limit assembly (240) or fixed locating part (410) are protrusively provided on connecting plate (210), The driven gear (400) is rotatably socketed in the connecting shaft (220).