KR0141635B1 - Fan with multiple blowers - Google Patents

Abstract

The present invention relates to a fan having multiple blowers, and an object of the present invention is to provide a fan that can efficiently blow air even when a plurality of people are gathered at various locations.

The fan according to the present invention includes an elevating column 2 and a plurality of blowers 7 provided so as to rotate left and right around the elevating column. The lifting column 2 includes a base 3; An inner column (4) having a mounting portion (41) projecting upwardly from the seat and a guide cylinder (42) extending upwardly from an upper surface of the mounting portion; A screw shaft 61 rotatably inserted into the mounting portion, a worm wheel 62 fixed to the lower end of the screw shaft, a dignity 62 engaged with the dignity, and a lifting and driving motor 64 for driving the worm. Elevating device 6; And, the elevating cylinder 51 surrounding the circumference of the guide tube so as to move up and down along the guide tube, the elevating disk 52 and the upper surface of the elevating disk connected to the lower end of the elevating cylinder so as to be able to elevate inside the guide tube An outer circumference 5 having a nut 53 fixed to the screw shaft and coupled to the screw shaft, wherein the blower portion 7 includes: a driving motor 71 embedded in a protective cover 711; A blowing fan 72 rotating according to the driving of the driving motor; A protection net (73) surrounding the blower fan to protect it; In addition, the protective cover is supported by the left and right pivots, characterized in that consisting of a bracket (74) fixed to the outer surface of the outer circumference.

Description

Fan with multiple blowers

The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide an electric fan that can efficiently blow air even when various people are gathered in various locations.

1 is a left side view showing a conventional general electric fan.

2 is a longitudinal sectional view showing a fan according to the present invention.

3 is a cross-sectional view taken along the line III-III of FIG.

4 is a cross-sectional view taken along the line IV-IV of FIG.

Fig. 5 is a sectional view showing the main parts of the support structure of the blower, which is a component of the fan according to the present invention.

* Explanation of symbols for the main parts of the drawings

2: ascendant 3: base

4: internal holding 5: external holding

6: lifting device 7: blower

41: mounting part 42: guide

51: elevator 52: elevator disc

53: Nut 61: Screw Shaft

62: worm wheel 63: worm

64: drive motor 71: drive motor

72: blower fan 73: protection net

74: Brackets

In order to achieve the above object, the fan according to the present invention is a fan having a plurality of blower comprises a lifting column and a plurality of blower units rotatably installed at different heights around the lifting column. With pedestals; An inner column having a mounting portion protruding upward in the center of the seat and having a through hole formed in the center thereof, and a guide tube extending upwardly from an upper surface of the mounting portion and having slots formed in a longitudinal direction on both sides; Hatch having a screw shaft rotatably inserted into the through hole and having an upper end extending to an upper portion of the inner circumference, a worm wheel installed at a lower end located in a mounting portion of the screw shaft, a worm engaged with the worm wheel, and a shaft for engaging the worm wheel. A lift device having a motor; And, the elevating cylinder and the elevating cylinder which can be elevated along the guide tube and the periphery of the guide tube, the elevating disk and the elevating disk connected to the lower end of the elevating tube through the two slots, It is fixed to the upper surface is made of an outer circumference which is elevated by the rotation of the screw shaft by having a nut coupled to the screw shaft, the blowing unit, the drive motor built in the protective cover; A blowing fan connected to the shaft of the driving motor and rotating according to the driving of the motor; A front and rear protection net surrounding the blower fan to protect it; In addition, the protective cover is supported by the left and right pivots, characterized in that consisting of a bracket fixed to the outer peripheral surface of the outer circumference.

According to the fan of the present invention configured as described above, when driving the lift drive motor in the state that the blowing fan rotates, the screw shaft is rotated in accordance with the rotation of the worm and worm wheel, the nut coupled to the screw shaft is fixed to the elevating disk As the nut is raised, the outer circumference is elevated along the inner circumference. Therefore, the ventilation can be widened up, down, left and right.

Other features and advantages of the present invention will become apparent from the following detailed description based on the accompanying drawings.

As shown in FIG. 2, the fan according to the present invention includes an elevating column 2 and a plurality of ventilation units 7 rotatably installed at different heights around the elevating column.

The lifting column 2 includes a seat 3 on which an operation unit is installed, an inner support 4 provided on an upper portion of the seat 3, and an outer support 5 installed around the inner support 4. And an elevating device 6 for elevating the outer column 5.

As shown in Figs. 2 and 3, the inner circumference 4 has a mounting portion 41 which protrudes upward from the center of the pedestal 3 so that an inner space is formed, and a through hole communicating with the inner space at the center of the upper surface. The guide tube 42 extends from an upper surface of the mounting portion 41 so that a space is formed therein, and slots 421 are formed in the longitudinal direction on both sides thereof. The guide cylinder 42 preferably has a smaller diameter than the mounting portion 41.

An elevating device 6 is installed inside the inner circumference 4 constructed as described above. As shown in Figs. 2 and 4, the elevating device 6 is rotatably inserted into the upper surface through hole of the mounting portion 41 and has a screw shaft 61 whose upper end extends to the upper portion of the guide cylinder 42. ), A worm wheel 62 fixed to the lower end of the screw shaft 61 located in the inner space of the mounting portion 41, a worm 63 engaged with the worm wheel 62, and the worm ( And a lift drive motor 64 having a shaft 641 that axes 63. Reference numeral 65 denotes a bearing for rotatably supporting the lower end of the screw shaft 61.

And, as shown in Figs. 2 and 3, the outer column 5, the lifting cylinder 51 surrounding the circumference of the guide cylinder 42 to be able to move up and down along the guide cylinder 42, and the guide cylinder An elevating disk which is installed to be movable up and down inside the 42 and is connected to the lower end of the elevating tube 51 through connecting ribs 521 penetrating both slots 421 and 421 of the guide tube 42. 52 and a nut 53 fixed to an upper surface of the elevating disk 52 and coupled to the screw shaft 61.

Therefore, when the lifting drive motor 64 is driven, the worm 63, the worm wheel 62, and the screw shaft 61 are rotated in turn, and thus are fixed to the lifting disk 52 and coupled to the screw shaft 61. The nut 53 may be elevated together with the elevating disk 52, and the elevating barrel 51 may be elevated through the connecting ribs 521.

On the other hand, the blower 7 includes a drive motor 71 embedded in the protective cover 711; A blowing fan 72 connected to the shaft of the driving motor 71 to rotate according to the driving of the driving motor 71; A protection net (73) surrounding it to protect the blowing fan (72); In addition, the protective cover 711 to support the left and right pivot, and in the form of a general wall-mounted fan consisting of a bracket (74) fixed to the outer circumferential surface of the lifting barrel (51), Multiple pieces are installed in appropriate positions around the elevator barrel 51. That is, as shown in FIG. 5, a coupling protrusion 741 is formed at one side of the bracket 74 of each blower 7, and a position where each blower 7 of the lifting barrel 51 is installed. As the coupling jaw 511 is formed on the outer circumferential surface of the coupling protrusion 741, the blowing projections 7 are supported by the lifting barrel 51 by being coupled to the locking jaw 511 and fastened to the screw jaws 521. Can be.

According to the fan of the present invention configured as described above, since the blowers 7 are installed at different heights at appropriate positions around the hoist 51, the blower fan of the blowers 7 located at the place where the air is needed ( Rotate 72). And, if necessary, more effective blowing can be achieved by turning the blower (7). That is, not only the blowers 7 are installed at various positions along the circumference and the height of the elevator 51, but also one blower 7 turns and passes its own position, even if the blower 7 turns its position. By directly blowing the air by itself is a continuous blow is made.

In this state, when the elevating drive motor 64 is driven, the worm 63 and the worm wheel 62 rotate according to the forward rotation drive of the elevating drive motor 64, and accordingly, the screw shaft 61 rotates the screw. The nut 53 coupled to the shaft 61 is raised. As the nut 53 is raised, the elevating disk 52 to which the nut 53 is fixed is raised, and thus, the connecting rib 521 connected to the elevating disk 52 and being raised along the slots 421 and 421. The lifting barrel 51 is raised through 521. After the lifting of the lifting cylinder 51 is completed, the lifting driving motor 64 is driven in reverse rotation, and thus the lifting cylinder 51 is lowered. In this way, the air can be blown to a wider area of the upper, lower, left and right according to the lifting of the elevator 51.

According to the fan according to the present invention configured as described above, regardless of the height and rotation angle is made to be blown almost omni-directional by a large number of people gathered wide when the blowing range or when several people gathered at different heights Even long enough blowing can be achieved.

Claims (2)

An electric fan having a multi-swinging unit including an elevating column 2 and a plurality of blowing units 7 rotatably arranged at different heights around the elevating column, wherein the elevating column 2 has a base 3. )Wow; An inner support 4 having a mounting portion 41 protruding upward in the center of the seat and a through hole formed in the center thereof, and a guide tube 42 extending upwardly from an upper surface of the mounting portion and having slots 421 formed in the longitudinal direction on both sides thereof. )Wow; A screw shaft 61 rotatably inserted into the through hole and having an upper end extending to an upper portion of the guide tube, a worm wheel 62 fixed to a lower end positioned in a mounting portion of the screw shaft, and a worm 62 engaged with the worm wheel. And a lifting device 6 having a lifting drive motor 64 having a shaft 641 which is in contact with the worm; In addition, the elevating cylinder 51 surrounding the circumference of the guiding cylinder so as to be able to move up and down along the guiding cylinder, and the elevating disk connected to the lower end of the elevating cylinder through both slots and being installed to be elevated in the interior of the guiding cylinder ( 52) and an outer column 5 which is lifted in accordance with the rotation of the screw shaft by having a nut 53 fixed to the upper surface of the elevating disk and coupled to the screw shaft, wherein the blower portion 7 has a protective cover. A drive motor 71 embedded in 711; A blowing fan 72 connected to the shaft of the driving motor and rotating according to the driving of the driving motor; A protection net (73) surrounding the blower fan to protect it; And the fan having a multiple blower, characterized in that for supporting the protective cover to turn left and right and fixed to the outer peripheral surface of the outer circumference. According to claim 1, A plurality of engaging jaw 511 is formed at a suitable position along the outer circumferential surface circumference of the elevator 51, the coupling jaw 511 on one side of the bracket 74 of each blower (7) Coupling protrusion 741 is coupled to the () is formed, the coupling protrusion 741 is coupled to the coupling jaw 511 and they are fastened by the screw right 512 is characterized in that the blower (7) is supported Fan having multiple blower parts to say.