CN210949191U

CN210949191U - Floor fan

Info

Publication number: CN210949191U
Application number: CN201921978850.3U
Authority: CN
Inventors: 何金朋
Original assignee: Foshan Shunde Jinhuan Guanqiu Electric Appliance Co ltd
Current assignee: Foshan Shunde Jinhuan Guanqiu Electric Appliance Co ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-07-07
Anticipated expiration: 2029-11-15

Abstract

The utility model discloses a floor fan, the on-line screen storage device comprises a base, adjust the pole, the aircraft nose, set up the motor in the aircraft nose, the back screen panel, the initiative fan blade, preceding screen panel, passive fan blade and second screen panel, it fixes on the base to adjust the pole lower extreme, aircraft nose activity sets up on adjusting the pole upper end, back screen panel is fixed on the aircraft nose, preceding screen panel is connected with the back screen panel and is formed first cavity, the initiative fan blade rotates and sets up in first cavity, and motor drive initiative fan blade is rotatory, the preceding terminal surface of preceding screen panel is equipped with the second cavity, passive fan blade sets up in the second cavity, the second screen panel is connected in the front, and cover the uncovered opening of second cavity, be connected with a pivot between preceding screen panel and the second screen panel, the axle center of the output shaft of pivot and motor is on same straight line, passive fan blade rotates and. According to the floor fan, the driving fan blade blows to drive the driven fan blade to rotate, the driven fan blade enables airflow blown out by the driving fan blade to be scattered, the wind speed is reduced, the blown wind is softer, and the comfort of people is improved.

Description

Floor fan

Technical Field

The utility model relates to a fan technical field specifically relates to a floor fan.

Background

In the existing floor fan, the fan blades are driven by a motor to rotate, disturb air, guide the air to the front of the mesh enclosure from the rear of the mesh enclosure, and achieve the purpose of cooling the surrounding environment or the body surface of a human body by driving the air to flow.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a soft floor fan of air current.

The purpose of the utility model is realized like this.

A floor fan comprises a base, an adjusting rod, a machine head, a motor arranged in the machine head, a rear mesh enclosure, a driving fan blade and a front mesh enclosure, wherein the lower end of the adjusting rod is fixed on the base, the machine head is movably arranged at the upper end of the adjusting rod, the rear mesh enclosure is fixed on the machine head, the front mesh enclosure is connected with the rear mesh enclosure to form a first cavity, the driving fan blade is rotatably arranged in the first cavity, and the output shaft of the motor passes through the rear mesh enclosure and is fixedly connected with the driving fan blade, and also comprises a driven fan blade and a second mesh enclosure, a second cavity is concavely arranged on the front end surface of the front mesh enclosure towards the direction of the first cavity, the passive fan blade is arranged in the second cavity, the second mesh enclosure is detachably connected on the front mesh enclosure, and the opening of the second cavity is covered by the cover, a rotating shaft is connected between the front net cover and the second net cover, the rotating shaft and the axis of the output shaft of the motor are on the same straight line, and the driven fan blade is rotatably arranged on the rotating shaft. This kind of floor fan, initiative fan blade blows the air current to passive fan blade, and the air current drives the rotation of passive fan blade promptly, and the air current that passive fan blade made the initiative fan blade blow out scatters, and the wind speed reduces, and the wind that blows out is softer, improves people's comfort, and the second screen panel shelters from passive fan blade in addition, improves the security performance.

The technical scheme can be further perfected as follows.

More specifically, the rear end of the rotating shaft is fixed on the front screen cover, the front end of the rotating shaft is inserted on the second screen cover, the rotating shaft is sleeved with a first bearing and a second bearing, and the driven fan blade is rotatably connected with the rotating shaft through the first bearing and the second bearing. The double-bearing design makes the driven fan blade rotate more easily, and the rotation process is steady, is favorable to reducing the production of noise.

More specifically, a gap is reserved between the first bearing and the second bearing, the first bearing is close to the front end face of the driven fan blade, and the second bearing is close to the rear end face of the driven fan blade. The front end and the rear end of the driven fan blade are supported and fixed through the first bearing and the second bearing respectively, and the driven fan blade rotates more stably.

More specifically, the rear end face of the second mesh enclosure is provided with a slot, and the front end of the rotating shaft is inserted into the slot. The second mesh enclosure is in positioning fit with the rotating shaft through the slot in the dismounting process.

More specifically, the upper edge and the edge of the second cavity of the front mesh enclosure form a stepped groove, an annular skirt edge extends outwards from the periphery of the second mesh enclosure, the annular skirt edge is arranged in the stepped groove, and the front end face of the annular skirt edge is flush with the front end face of the front mesh enclosure. The stepped groove and the annular skirt are matched in a positioning mode, and the front mesh enclosure and the second mesh enclosure are connected and then are not prone to moving in the radial direction.

More specifically, the outer edge horizontal projection line of the passive fan blade is arranged between the inner edge horizontal projection line of the active fan blade and the outer edge horizontal projection line of the active fan blade, so that the wind beams blown out by the active fan blade can be scattered by the passive fan blade, the wind speed is reduced, and the wind blown out by the passive fan blade is softer.

More specifically, the number of the fan blades of the passive fan blades is greater than that of the fan blades of the active fan blades, the stress surface of the passive fan blades is larger, the passive fan blades can be easily and continuously driven to rotate by the wind belts blown out by the active fan blades, and then wind beams blown out by the active fan blades are scattered and soft wind beams are formed again to blow out.

The utility model discloses a beneficial effect of purpose:

(1) this kind of floor fan, initiative fan blade blows the air current to passive fan blade, and the air current drives the rotation of passive fan blade promptly, and the air current that passive fan blade made the initiative fan blade blow out scatters, and the wind speed reduces, and the wind that blows out is softer, improves people's comfort, and the second screen panel shelters from passive fan blade in addition, improves the security performance.

(2) Secondly, both ends are supported fixedly through first bearing and second bearing respectively around the driven fan blade, and it is easier that driven fan blade rotates, and rotates the process steadily, is favorable to reducing the production of noise.

(3) Moreover, through slot and pivot location fit, the second screen panel is convenient at the dismouting, location fit between ladder groove and the annular shirt rim to difficult removal in radial direction after making preceding screen panel and second screen panel connect.

(4) Then, the horizontal projection line of the outer edge of the passive fan blade is between the horizontal projection line of the inner edge of the active fan blade and the horizontal projection line of the outer edge of the active fan blade, so that the wind beam blown out by the active fan blade can be scattered by the passive fan blade, the wind speed is reduced, and the wind blown out by the passive fan blade is softer.

(5) In addition, the number of the fan blades of the passive fan blades is more than that of the fan blades of the active fan blades, the stress surface of the passive fan blades is larger, and the passive fan blades can be easily and continuously driven to rotate by the wind belts blown out by the active fan blades, so that the wind beams blown out by the active fan blades are scattered, and soft wind beams are formed again to blow out.

Drawings

Fig. 1 is a schematic structural diagram of the floor fan of the present invention.

Fig. 2 is an exploded schematic view of the grid lamp of the present invention.

Fig. 3 is a schematic cross-sectional view of the grid lamp of the present invention.

Fig. 4 is an enlarged view of a portion a in fig. 3.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

in a first embodiment, referring to fig. 1 to 4, a floor fan includes a base 1, an adjusting rod 2, a machine head 3, a motor 30 disposed in the machine head 3, a rear mesh enclosure 4, a driving fan blade 5, a front mesh enclosure 6, a driven fan blade 7, and a second mesh enclosure 8, wherein a lower end of the adjusting rod 2 is fixed on the base 1, the machine head 3 is movably disposed at an upper end of the adjusting rod 2, the rear mesh enclosure 4 is fixed on the machine head 3, the front mesh enclosure 6 is connected with the rear mesh enclosure 4 to form a first cavity 60, the driving fan blade 5 is rotatably disposed in the first cavity 60, and an output shaft of the motor 30 penetrates through the rear mesh enclosure 4 and is fixedly connected with the driving fan blade.

The front end of preceding screen panel 6 is concave to have second cavity 61 towards first cavity 60 direction, and preceding screen panel 6 is upper, second cavity 61 edge forms ladder groove 62, and the peripheral outside extension of second screen panel 8 has annular shirt rim 81, and ladder groove 62 is arranged in to annular shirt rim 81, and second screen panel 8 is connected in the front on screen panel 6 to cover the open mouth of second cavity 61, and the preceding terminal surface parallel and level of preceding terminal surface of annular shirt rim 81 and preceding screen panel 6. The second mesh enclosure 8 is detachably connected with the front mesh enclosure 6 through screws, buckles and the like.

Wherein, still be equipped with a pivot 9 between preceding screen panel 6 and the second screen panel 8, pivot 9 rear end is fixed on preceding screen panel 6, and second screen panel 8 rear end face is equipped with slot 82, and pivot 9 front end is inserted and is established in slot 82, and pivot 9 and the axle center of the output shaft of motor 30 are on same straight line, and the cover is equipped with first bearing 91 and second bearing 92 on the pivot 9, leaves the space between first bearing 91 and the second bearing 92. The driven fan blade 7 is arranged in the second cavity 61, a bearing is close to the front end face of the driven fan blade 7, and a second bearing 92 is close to the rear end face of the driven fan blade 7, so that the driven fan blade 7 is rotatably connected with the rotating shaft 9 through the first bearing 91 and the second bearing 92 simultaneously

In this embodiment, the driving fan blade 5 has 5 fan blades, the driven fan blade 7 has 8 fan blades, and the horizontal projection line of the outer edge 71 of the driven fan blade is between the horizontal projection line of the inner edge 52 of the driving fan blade and the horizontal projection line of the outer edge 51 of the driving fan blade 5. The motor 30 drives the driving fan blades 5 to rotate at a high speed, the driving fan blades 5 enable air to flow, namely, forward flowing wind beams are formed, the wind beams are divided and scattered by the driven fan blades 7 in the process that the driven fan blades 7 are driven by the wind beams to rotate, new wind beams are formed, the new wind beams are slower and softer, and the wind feeling is more comfortable.

Claims

1. The utility model provides a floor fan, including base (1), adjust pole (2), aircraft nose (3), motor (30) of setting in aircraft nose (3), back screen panel (4), initiative fan blade (5) and preceding screen panel (6), it fixes on base (1) to adjust pole (2) lower extreme, aircraft nose (3) activity sets up in adjusting pole (2) upper end, back screen panel (4) are fixed on aircraft nose (3), preceding screen panel (6) are connected with back screen panel (4) and are formed first cavity (60), initiative fan blade (5) are rotated and are set up in first cavity (60), and the output shaft of motor (30) passes back screen panel (4) and initiative fan blade (5) fixed connection, its characterized in that: still include passive fan blade (7) and second screen panel (8), the front end of preceding screen panel (6) is concave to have second cavity (61) towards first cavity (60) direction, and passive fan blade (7) set up in second cavity (61), and second screen panel (8) are in order can dismantle the connection in the front on screen panel (6) to cover the opening of second cavity (61), are connected with a pivot (9) between preceding screen panel (6) and second screen panel (8), and pivot (9) and the axle center of the output shaft of motor (30) are on same straight line, and passive fan blade (7) rotate and set up in on pivot (9).

2. A floor fan as claimed in claim 1, wherein: the rear end of the rotating shaft (9) is fixed on the front mesh enclosure (6), the front end of the rotating shaft (9) is inserted on the second mesh enclosure (8), the rotating shaft (9) is sleeved with a first bearing (91) and a second bearing (92), and the driven fan blade (7) is rotatably connected with the rotating shaft (9) through the first bearing (91) and the second bearing (92).

3. A floor fan as claimed in claim 2, wherein: a gap is reserved between the first bearing (91) and the second bearing (92), the first bearing (91) is close to the front end face of the driven fan blade (7), and the second bearing (92) is close to the rear end face of the driven fan blade (7).

4. A floor fan as claimed in claim 2, wherein: the rear end face of the second mesh enclosure (8) is provided with a slot (82), and the front end of the rotating shaft (9) is inserted into the slot (82).

5. A floor fan as claimed in claim 1, wherein: preceding screen panel (6) are gone up, second cavity (61) edge forms ladder groove (62), and peripheral outside extension of second screen panel (8) has annular shirt rim (81), and ladder groove (62) are arranged in annular shirt rim (81), and the preceding terminal surface parallel and level of preceding terminal surface of the preceding terminal surface of annular shirt rim (81) and preceding screen panel (6).

6. A floor fan as claimed in claim 1, wherein: the horizontal projection line of the outer edge (71) of the passive fan blade is between the horizontal projection line of the inner edge (52) of the active fan blade and the horizontal projection line of the outer edge (51) of the active fan blade.

7. A floor fan as claimed in claim 1, wherein: the number of the fan blades of the passive fan blades (7) is more than that of the fan blades of the active fan blades (5).