CN2316492Y

CN2316492Y - Rotation angle regulator for electric fan

Info

Publication number: CN2316492Y
Application number: CN 97228234
Authority: CN
Inventors: 曹荣华
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-10-15
Filing date: 1997-10-15
Publication date: 1999-04-28
Anticipated expiration: 2007-10-15

Abstract

The utility model relates to a rotating angle regulator for an electric fan, which comprises an upper rotating joint driven to rotate by a motor of the electric fan, a toggle mechanism composed of an upper and a lower connecting rods and joints, a swing arm, both ends of which are respectively sheathed on the joint and a base of the electric fan, and an adjusting knob, wherein the upper and the lower connecting rods are respectively connected with the upper rotating joint and the adjusting knob in relatively pivoting manner, through rotating the adjusting knob to rise and fall, the included angle between the upper and the lower connecting rods and a rotating radius when the upper and the lower connecting rods are driven to rotate are changed, and in addition, the swing arm drives an electric fan head to do the to-and-fro swing in a selected angle range.

Description

The electric fan angle regulator

The utility model belongs to room ventilation equipment, relates in particular to a kind of electric fan angle regulator.

The oscillator device of traditional electrical fan, it is bent axle by a fixation radius of electric fan motor driven, electric fan is rotated in a tilt fixing scope, therefore can only select fan head to rotate or maintain static, and the angle that fan head rotates also is scheduled to, can not change, therefore be difficult to adapt to varying environment, different users's needs.

The purpose of this utility model is to provide a kind of electric fan angle regulator, and it can adjust the angle of electric fan rotation by arbitrarily adjusting the size of virtual radius with the crank throw of a virtual radius replacement traditional product, user.

The utility model adopts following technological scheme:

The utility model electric fan angle regulator comprises one by the last swivel joint of electric fan motor through the gear set drive rotation; One is screwed onto on the motor case base plate and the adjustment knob of rotatable lifting, adjusts the knob top and articulates a lower swivel; By joint and the last connecting rod and the lower link that articulate mutually with the mode that can relatively rotate, last connecting rod be with can the mode of relatively rotating being articulated in the swivel joint below, and lower link is with can the mode of relatively rotating being articulated in above the lower swivel; And two ends are socketed in the swing arm on joint and the electric fan base respectively.

The utility model promotes by lifting and adjusts the lower swivel that knob is connected, the angle of the toggle mechanism that is made of two connecting rods and joint is increased or reduce, the virtual radius of its formation is reduced or increase, change the motion path that toggle mechanism connects swing arm to reach, drive the purpose of electric fan head reciprocally swinging in the rotational angle range that the user selectes, therefore can be suitable for the needs of different occasions and satisfactory for result.

Specifically narrate embodiment below in conjunction with accompanying drawing:

Fig. 1 is a stereochemical structure decomposing schematic representation of the present utility model

Fig. 2 is a structure side-looking generalized section of the present utility model

Fig. 3 is a kind of user mode schematic representation of the utility model

Fig. 4 is the another kind of user mode schematic representation of the utility model

Fig. 5 is the motion path schematic representation of electric fan user mode shown in Figure 3

Fig. 6 is the motion path schematic representation of electric fan user mode shown in Figure 4

Consult shown in Figure 1, electric fan angle regulator of the present utility model, make its rising by rotating adjustment knob 19, descend and adjust and go up the toggle mechanism that connecting rod 11 and lower link 14 are formed, thereby change its angle and virtual radius, reach the effect of adjusting angle that electric fan blows, wherein, motor 61 drives axis 60 and rotates, utilize axis 60 to drive flabellum 67 and gear train 66 rotations, gear train 66 rotates the last swivel joint 10 that links together, drive the last connecting rod 11 that is connected with last swivel joint 10, make again by last connecting rod 11, the toggle mechanism that lower link 14 is formed rotates with the swing arm that is connected with toggle mechanism 12, because of the hollow jack-post 63 on the gravity axis 62 meeting insertion electric fan bases 65, swing arm 12 also can be inserted in outside the solid jack-post 64 on the electric fan base 65, make it that reaction force take place, and cause the rotation of electric fan head.

Consult shown in Figure 2, electric fan angle regulator of the present utility model, last swivel joint 10 tops are driven by gear train 66 and rotate, the below is provided with a hole 51 and gap slot 52, the two ends of last connecting rod 11 are respectively equipped with a hole 53 and 54, joint is respectively equipped with a

hole

57 and 59 and one

gap slot

58 and 510 in two ends about in the of 13, insert respectively in the gap slot 52 and 58 of swivel joint 10 and joint 13 at last connecting rod 11 two ends, and insert respectively with two

pins

501 and 502 and to pass hole 51 and 53 and

hole

54 and 57, make

swivel joint

10,13 of last connecting rod 11 and joints are bonded with each other and can make the action that is pivoted relative to each other, the two ends of swing arm 12 are respectively equipped with a

trepanning

55 and 56, wherein trepanning 56 is inserted in the joint 13, another set of borehole jack is gone into outside the solid jack-post 64 of fan base 65 shown in Figure 1, lower link 14 two ends are established a

hole

511 and 512 respectively, the top of lower swivel is provided with a hole 513 and a gap slot 514, the below is provided with a vertical journal 516, insert respectively in the gap slot 510 of the gap slot 514 of lower swivel 15 and joint 13 at lower link 14 two ends, insert with two

pins

503 and 504 and to pass

hole

59 and 511 and

hole

512 and 513, make

joint

13,15 actions that also can be bonded with each other and make being pivoted relative to each other of lower link 14 and lower swivel, adjust knob 19 and be carved with screw thread 18, the top is provided with a pivot bearing 515, the screw of adjusting in knob 19 and the motor case base plate 16 17 screws togather mutually, and 515 of pivot bearings insert in the vertical journal 516 of lower swivel 15.

Consult shown in Figure 3, when the user rotates adjustment knob 19 in a clockwise direction, the screw thread of adjusting on the knob 19 18 just can make adjustment knob 19 rise along the screw 17 of motor case base plate 16, promote lower swivel 15 and rise to a position, and last connecting rod 11, the toggle mechanism that lower link 14 and joint 13 constitutes can be subjected to the promotion of lower swivel 15 and change the angle of its angle, angle diminishes, the virtual radius R that toggle mechanism constitutes becomes big, the rotation angle of electric fan also increases, consult shown in Figure 5, the CD of quadrilateral ABCD is a virtual radius R of the present utility model among the figure, A point and B point are represented two immovable point positions by hollow shaft post on the electric fan base 65 and solid jack-post 64 respectively, if quadrilateral ABCD is with the A point, the B point rotates for fixed point, when the B point, the D1 point, C1 point or B point, the C2 point, the D2 point is in line the time, fan head just can be toward back rotation, angle α is the rotation angle of electric fan, CD effect length angle α, CD is long more, angle α is big more, the electric fan pendulum angle is big more, and on the contrary, CD is short more, α is more little for angle, and the electric fan pendulum angle is more little.

Consult shown in Figure 4, when if the user adjusts knob 19 counterclockwise to rotate, can make and adjust button 19 declines, lower swivel 15 can be pulled to the b position, it is big that the angle that toggle mechanism is formed becomes, virtual radius R ' diminish, the pendulum angle of electric fan also diminishes, consult shown in Figure 6, angle α is subjected to the influence of CD length, because of lower swivel 15 is pulled to the b position, this moment virtual radius R ' shorter than the virtual radius R in Fig. 3, the user mode shown in Figure 5, so α is also little for angle, so the pendulum angle of electric fan is also smaller.

In sum, electric fan angle regulator overall construction design science of the present utility model, reasonable and practical has solved the defective that traditional product exists, and reaches design purpose.

Claims

1, a kind of electric fan angle regulator is characterized in that, it comprises one by the last swivel joint of electric fan motor through the gear set drive rotation; One is screwed onto on the motor case base plate and the adjustment knob of rotatable lifting, adjusts the knob top and articulates a lower swivel; By joint and the last connecting rod and the lower link that articulate mutually with the mode that can relatively rotate, last connecting rod be with can the mode of relatively rotating being articulated in the swivel joint below, and lower link is with can the mode of relatively rotating being articulated in above the lower swivel; And two ends are socketed in the swing arm on joint and the electric fan base respectively.