CN215170971U - Fan - Google Patents

Abstract

The utility model discloses a fan, the on-line screen storage device comprises a base, it is connected with the support to rotate on the base, be provided with the air-out subassembly on the support, the support bottom is provided with a bellying, bellying one end is inserted in the base, the bellying inserts be provided with driven gear on the position of base, still be provided with in the base one with driven gear engaged with driving gear, the driving gear is fixed on the output shaft of motor, the motor is fixed on the base inner wall. Different from the common fan angle adjustment, the structure has the advantages that the fan angle rotation range can be controlled by the number of positive and negative rotation turns of the motor, so that the rotation angle of the fan can be adjusted at will, and the application range is greatly improved.

Description

Fan

Technical Field

The utility model relates to a fan.

Background

The steering angle of the steering mechanism of the existing fan is fixed and cannot be changed, so that the steering mechanism is limited, and therefore, the improvement is needed.

Disclosure of Invention

The utility model provides a fan, the angle that turns to that can adjust the fan wantonly, to prior art not enough.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a fan, includes the base, it is connected with the support to rotate on the base, be provided with the air-out subassembly on the support, the support bottom is provided with a bellying, bellying one end is inserted in the base, the bellying inserts be provided with driven gear on the position of base, still be provided with in the base one with driven gear engaged with driving gear, the driving gear is fixed on the output shaft of motor, the motor is fixed on the base inner wall. When the air outlet component is used, the motor rotates to drive the output shaft to rotate, the driving gear on the output shaft and the output shaft rotate together to drive the driven gear meshed with the output shaft to rotate, the driven gear and the support are fixed together, the driven gear can drive the support to rotate together, and therefore the support and the air outlet component rotate together. Different from the common fan angle adjustment, the structure has the advantages that the fan angle rotation range can be controlled by the number of positive and negative rotation turns of the motor, so that the rotation angle of the fan can be adjusted at will, and the application range is greatly improved.

In the above technical solution, preferably, the number of teeth of the driving gear is less than the number of teeth of the driven gear.

In the above technical scheme, preferably, the top of the base is provided with a groove, the bottom of the groove is provided with a through hole, the upper end of the boss is matched with the groove, the lower end of the boss is inserted into the through hole, and the driven gear is arranged at the lower end of the boss.

In the above technical scheme, preferably, a circle of arc-shaped groove is formed in the end face of the upper end of the protruding portion, a stop block is arranged on the groove, and the stop block is inserted into the arc-shaped groove. The cooperation of bellying and recess is injectd the turned angle of fan, because there is the wire that carries the electric energy between base and the air-out subassembly, if the turned angle does not put forward the restriction, can lead to the wire intertwine together, leads to the wire to be taut until breaking, consequently must restrict the rotation range of air-out subassembly.

The utility model has the advantages that: different from the common fan angle adjustment, the structure has the advantages that the fan angle rotation range can be controlled by the number of positive and negative rotation turns of the motor, so that the rotation angle of the fan can be adjusted at will, and the application range is greatly improved.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a partially enlarged schematic view of fig. 2.

Fig. 4 is a bottom schematic view of the present invention (with the bottom cover of the base removed).

Fig. 5 is a schematic view of a stent.

Detailed Description

The invention will be described in further detail with reference to the following drawings and detailed description:

referring to fig. 1 to 5, a fan includes a base 1, a support 2 is rotatably connected to the base 1, and an air outlet assembly 3 is disposed on the support 2. The bottom of the support 2 is provided with a boss 21, one end of the boss 21 is inserted into the base 1, the boss 21 is inserted into the position of the base 1, a driven gear 22 is arranged on the position of the base 1, a driving gear 41 meshed with the driven gear 22 is further arranged in the base 1, and the number of teeth of the driving gear is less than that of the driven gear. The driving gear 41 is fixed on an output shaft of the motor 4, and the motor 4 is fixed on the inner wall of the base 1.

The top of the base 1 is provided with a groove 11, the bottom of the groove 11 is provided with a through hole 12, the upper end of the protruding part 21 is matched with the groove 11, the lower end of the protruding part 21 is inserted into the through hole 12, and the driven gear 22 is arranged at the lower end of the protruding part 21.

A circle of arc-shaped groove 211 is formed in the end face of the upper end of the protruding portion 21, a stop block 111 is arranged on the groove 11, and the stop block 111 is inserted into the arc-shaped groove 211. The cooperation of bellying and recess is injectd the turned angle of fan, because there is the wire that carries the electric energy between base and the air-out subassembly, if the turned angle does not put forward the restriction, can lead to the wire intertwine together, leads to the wire to be taut until breaking, consequently must restrict the rotation range of air-out subassembly.

When the air outlet component is used, the motor rotates to drive the output shaft to rotate, the driving gear on the output shaft and the output shaft rotate together to drive the driven gear meshed with the output shaft to rotate, the driven gear and the support are fixed together, the driven gear can drive the support to rotate together, and therefore the support and the air outlet component rotate together. Different from the common fan angle adjustment, the structure has the advantages that the fan angle rotation range can be controlled by the number of positive and negative rotation turns of the motor, so that the rotation angle of the fan can be adjusted at will, and the application range is greatly improved.

Claims (4)

1. The utility model provides a fan, includes the base, it is connected with the support to rotate on the base, be provided with air-out subassembly, its characterized in that on the support: the support bottom is provided with a boss, boss one end is inserted in the base, the boss inserts be provided with driven gear on the position of base, still be provided with in the base with driven gear engaged with the driving gear, the driving gear is fixed on the output shaft of motor, the motor is fixed on the base inner wall.

2. The fan as claimed in claim 1, wherein: the number of teeth of the driving gear is less than that of the driven gear.

3. The fan as claimed in claim 1, wherein: the base top is provided with a recess, the recess bottom is provided with the through-hole, the bellying upper end with the recess cooperatees, the bellying lower extreme inserts in the through-hole, driven gear sets up the lower extreme of bellying.

4. The fan as claimed in claim 3, wherein: the end face of the upper end of the protruding portion is provided with a circle of arc-shaped groove, the groove is provided with a stop block, and the stop block is inserted into the arc-shaped groove.

Images