CN217176930U - Lifting fan - Google Patents

Abstract

The utility model discloses a lifting fan, which comprises a fan base, a fan head and a lifting component, wherein the lifting component comprises a lifting track, a lifting base and a driving mechanism, and the lifting base is connected with the fan head; the lifting track is connected to the fan seat; the driving mechanism comprises a rack, a gear and a driving piece, the rack is arranged on the lifting track, and the driving piece and the gear are both arranged on the lifting seat; the gear is pivoted on the lifting seat and meshed with the rack; the driving piece is used for driving the gear to rotate. The utility model discloses a lifting fan, the fan head that is connected with the seat that goes up and down is realized to the cooperation of its accessible gear and rack goes up and down to the height is bloied in the electric adjustment.

Description

Lifting fan

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to a lifting fan.

Background

At present, an electric fan is a device which is driven by electricity to generate air flow, and a fan arranged in the electric fan rotates after being electrified, so that mechanical energy is converted into wind energy, and the electric fan is converted into natural wind to achieve a cooling effect.

The existing fan generally lifts the head of the fan through a lifting rod in order to achieve blowing at different heights, and can be locked through structures such as bolts or screws after lifting in place, so that manual adjustment is needed in the adjustment process, and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a lifting fan, the fan head that is connected with the lifting seat is realized to the cooperation of its accessible gear and rack goes up and down to the height is bloied in the electric adjustment.

The purpose of the utility model is realized by adopting the following technical scheme:

a lifting fan comprises a fan base, a fan head and a lifting assembly, wherein the lifting assembly comprises a lifting rail, a lifting base and a driving mechanism, and the lifting base is connected with the fan head; the lifting track is connected to the fan seat; the driving mechanism comprises a rack, a gear and a driving piece, the rack is arranged on the lifting track, and the driving piece and the gear are both arranged on the lifting seat; the gear is pivoted on the lifting seat and meshed with the rack; the driving piece is used for driving the gear to rotate.

Furthermore, the racks are arranged on two sides of the lifting track; the gears and the driving piece are arranged on the two sides of the lifting seat, and each gear is meshed with each rack; each driving piece is used for driving each gear to rotate.

Furthermore, the lifting track comprises two guide posts and two connecting seats, and the two guide posts are arranged at intervals; the top ends of the two guide posts are connected through one connecting seat; the bottom ends of the two guide posts are connected through another connecting seat; the rack is arranged on the inner side of the guide pillar; the lifting seat is movably arranged between the two guide posts.

Furthermore, guide sleeves are arranged on two sides of the lifting seat, and the guide sleeves are sleeved outside the guide pillars in a sliding mode.

Furthermore, the lifting track also comprises a protective cover, the protective cover is covered outside the guide pillar, and a threading groove is arranged in the protective cover; and a threading opening is formed in the side part of the threading groove.

Furthermore, two guide posts are respectively inserted in two sides of the connecting seat.

Further, the driving piece is a stepping motor.

Further, the self-positioning torque of the stepping motor is larger than 1.5kgf.

Further, the fan head includes casing, flabellum and flabellum motor, the casing install in the lift seat, the flabellum pin joint in the casing, the flabellum motor is used for driving the flabellum rotates.

Compared with the prior art, the beneficial effects of the utility model reside in that: it is when carrying out the lift of fan head, can drive gear revolve through the driving piece, gear revolve alright with the last rack toothing of lift track, about the gear alright drove the lift seat, realize electric drive, the height adjustment of blowing of fan head is convenient.

Drawings

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

FIG. 2 is a schematic view of a partial structure of the present invention;

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

fig. 4 is a schematic view of the horizontal section of the lifting assembly of the present invention.

In the figure: 10. a fan base; 11. a rack; 12. a protective cover; 121. a threading slot; 13. a connecting seat; 14. a lifting seat; 141. a guide sleeve; 15. a stepping motor; 16. a guide post; 17. a gear; 20. a fan head; 21. a housing.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

in the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1-4, the lifting fan includes a fan base 10, a fan head 20, and a lifting assembly, wherein the lifting assembly includes a lifting rail, a lifting base 14, and a driving mechanism, the lifting base 14 is connected to the fan head 20, and the lifting rail is connected to the fan base 10.

The driving mechanism comprises a rack 11, a gear 17 and a driving part, the rack 11 is arranged on the lifting track, the driving part and the gear 17 are both arranged on the lifting seat 14, the gear 17 is pivoted on the lifting seat 14, and the gear 17 is meshed with the rack 11; the driving member can drive the gear 17 to rotate.

On the basis of the structure, use the utility model discloses a during the lifting fan, when the adjustment of the height of blowing, can be connected fan head 20 with lift seat 14, lift seat 14 can slide and installing on the lift track, and concrete driving piece can drive gear 17 and rotate, and gear 17 rotates and can mesh with rack 11, and rack 11's direction of height motion can be followed in gear 17 and rack 11's meshing, and then drives the lift seat 14 of being connected with gear 17 and at the orbital direction of height motion that goes up and down, realizes the lift of lift seat 14.

Therefore, the fan head 20 connected with the lifting seat 14 can move up and down along the fan seat 10, the blowing height of the fan head 20 can be adjusted, the height of the fan head 20 can be adjusted by the driving piece matched with the gear 17 and the rack 11 for transmission, the adjustment can be carried out electrically, the gear 17 is meshed with the tooth grooves of the rack 11 for secondary use, the transmission precision is higher, and the height adjustment range is flexible.

Further, the two sides of the lifting track can be provided with the racks 11, the two sides of the lifting seat 14 are provided with the gears 17 and the driving members correspondingly, the gears 17 on the two sides of the lifting seat 14 are respectively meshed with the racks 11 on the two sides of the lifting track, and each driving member can drive each gear 17 to rotate.

On this structure basis, each driving piece can drive the gear 17 rotation that corresponds, and the gear 17 of lift seat 14 both sides can be simultaneously with the rack 11 meshing of lift track both sides, realizes the up-and-down motion, and the both sides of lift seat 14 all can realize the cooperation with the lift track, and the lift process is more stable.

More specifically, the lifting rail comprises two guide posts 16 and two connecting seats 13, the two guide posts 16 are arranged at intervals, and the top ends of the two guide posts 16 are connected through one of the connecting seats 13; the bottom ends of the two guide posts 16 are connected through another connecting seat 13. The rack 11 is disposed inside the guide posts 16, and the lifting base 14 is movably mounted between the two guide posts 16.

On the basis of the structure, when the lifting seat 14 is lifted, the lifting seat 14 can be penetrated between the two guide posts 16, and two sides of the lifting seat 14 can be limited by the guide posts 16, so that the left-right deflection in the lifting process is prevented. And the up-and-down movement of the lifting seat 14 can be limited by the upper and lower connecting seats 13, so as to prevent the lifting seat 14 from being separated from the lifting rail.

Furthermore, guide sleeves 141 may be disposed on both sides of the lifting seat 14, and the guide sleeves 141 are slidably sleeved outside the guide posts 16, that is, in the lifting process of the lifting seat 14, the guide sleeves 141 on both sides of the lifting seat 14 may be slidably engaged with the guide posts 16 to guide the up-and-down movement of the lifting seat 14.

Of course, the guiding of the lifting seat 14 can also be realized by a sliding rail and a sliding groove, the sliding rail can be disposed on the lifting seat 14, and the sliding groove can be opened on the guide post 16, so that the sliding rail of the lifting seat 14 can be in sliding fit with the sliding groove of the guide post 16, thereby realizing the guiding of the up-and-down movement.

Further, in order to prevent the internal rack 11 and the gear 17 from being exposed, the lifting rail further comprises a protective cover 12, specifically, during assembly, the protective cover 12 can be covered outside the guide post 16, and a threading groove 121 is formed in the protective cover 12; the side of the threading groove 121 is provided with a threading opening.

Specifically, the interior of the protective cover 12 can be divided into two slots, one of which is a threading slot 121, and the other of which can be used for threading the guide post 16, and after the guide post 16 is assembled, the power circuit of the driving member can be guided through the threading slot 121, thereby preventing the circuit from being disordered.

Because the protective cover 12 covers the outer side of the guide post 16, the protective cover can prevent water and dust, and has better installation performance in the use process.

Specifically, the two guide posts 16 are respectively inserted into two sides of the connecting seat 13, so that the guide posts 16 and the connecting seat 13 can be assembled and disassembled in a matched manner, and thus, the assembly and disassembly are more convenient. Specifically, a connecting piece can be arranged at the end of the guide post 16, and after the guide post 16 is inserted into the connecting seat 13, a bolt can be screwed into the connecting seat 13, and the bolt can be screwed on the connecting piece to realize further assembly.

Of course, the above-mentioned structure assembly of the protective cover 12 and the guide post 16 can be realized by a bolt or a screw in the prior art. And on the basis of the structure with the protective cover 12, the connecting seat 13 can be connected between the protective covers 12 sleeved outside the two guide posts 16.

Further, the driving member is a stepping motor 15, since the stepping motor 15 has a braking torque, but is much smaller than a working torque, when the lifting seat 14 stops at a suitable height position, the stepping motor 15 stops, a locking current is set according to a rated current when the stepping motor 15 stops rotating, and the torque of the stepping motor 15 is a holding torque of the motor at this time, which is the maximum torque of the stepping motor 15, so that the sliding between the gear 17 and the rack 11 is prevented, and the lifting seat 14 is fixed at the height position and has a stable structure.

Of course, on the basis of the structure that does not adopt the stepping motor 15, a limit structure may be arranged on the lifting seat 14, and when the lifting seat 14 stops at a certain height, the limit structure may be connected to the lifting seat 14, so as to realize the positioning at the corresponding height. The specific limiting structure can be realized by adopting structures such as a limiting buckle in the prior art.

Further, the self-positioning torque of the stepping motor 15 is larger than 1.5kgf.cm, that is, when the stepping motor 15 stops operating, the torque provided is enough to support the weight of the lifting base 14, the fan head 20, and the like.

Further, the fan head 20 includes a housing 21, a fan blade and a fan blade motor, and specifically, the housing 21 may be installed on the lifting base 14, the fan blade is pivoted in the housing 21, and the fan blade motor is used for driving the fan blade to rotate. When the action of blowing, the flabellum motor drives the flabellum and rotates promptly, alright realization is blown. The fan blade and fan blade motor are assembled on the basis of the housing 21, the housing 21 is connected with the lifting seat 14, and the lifting of the lifting seat 14 can drive the housing 21 and the internal structure of the housing 21 to lift.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims (9)

1. A lifting fan is characterized by comprising a fan base, a fan head and a lifting assembly, wherein the lifting assembly comprises a lifting rail, a lifting base and a driving mechanism, and the lifting base is connected with the fan head; the lifting track is connected to the fan seat; the driving mechanism comprises a rack, a gear and a driving piece, the rack is arranged on the lifting track, and the driving piece and the gear are both arranged on the lifting seat; the gear is pivoted on the lifting seat and meshed with the rack; the driving piece is used for driving the gear to rotate.

2. The elevating fan as claimed in claim 1, wherein the rack is provided at both sides of the elevating rail; the gears and the driving piece are arranged on the two sides of the lifting seat, and each gear is meshed with each rack; each driving piece is used for driving each gear to rotate.

3. The lifting fan as claimed in claim 2, wherein the lifting rail comprises two guide posts and two connection seats, the two guide posts being spaced apart from each other; the top ends of the two guide posts are connected through one connecting seat; the bottom ends of the two guide posts are connected through another connecting seat; the rack is arranged on the inner side of the guide pillar; the lifting seat is movably arranged between the two guide posts.

4. The lifting fan as claimed in claim 3, wherein guide sleeves are provided on both sides of the lifting base, and the guide sleeves are slidably fitted over the guide posts.

5. The lifting fan as claimed in claim 3, wherein the lifting rail further comprises a protective cover covering the guide posts, the protective cover having threading grooves therein; and a threading opening is formed in the side part of the threading groove.

6. The elevating fan as claimed in claim 3, wherein the two guide posts are respectively inserted into both sides of the connecting base.

7. The lift fan of any one of claims 1-6, wherein the drive member is a stepper motor.

8. The lift fan of claim 7, wherein the stepper motor has a self-positioning torque greater than 1.5kgf.

9. The lift fan of any one of claims 1 to 6, wherein the fan head comprises a housing, a fan blade and a fan blade motor, the housing is mounted to the lift base, the fan blade is pivotally connected to the housing, and the fan blade motor is configured to rotate the fan blade.

Images