KR200240682Y1 - Controlling system of rotation angle for mechanical fan - Google Patents

Abstract

The present invention relates to an apparatus for adjusting the rotation angle of a fan to contribute to the improvement of the quality and energy saving of the fan and to the convenience of the user by allowing the user to set the rotation angle of the head arbitrarily according to the number and location of the user. The worm 45 formed on the motor shaft 37 protruding to the rear of the motor 36 provided in the head 35 and the worm 45 are lifted and lowered by the lifted and lowered shaft 48 and fixed to the worm ( A worm wheel 49 in contact with and leaving 45); The other end of the drive gear 53 fixed to the lower side of the up and down shaft 48, the support 34 connected to the drive gear 53 and fixing the head 35 and the other end of the link 50 hingedly fixed at one end thereof. In the fan 30 having a rotation angle adjusting device 40 is provided with a driven gear (51); An insertion groove 60 formed below the driven gear 51 with an internal gear 61; An adjusting gear 62 engaged with the internal gear 61; The control gear 62 is raised and lowered by an adjustment pin 63 penetrating the driven gear 51 and protruding out of the cover 46; A link gear 66 fixed below the driven gear 51 and fixed to the fixed shaft 65 and connected to the adjustment gear 62; The lower end of the link gear 66 is connected to the other end of the link 50 is fixed to the support 34 and the hinge is configured to configure the rotation angle adjustment device (40).

Description

Fan rotation angle control device {Controlling system of rotation angle for mechanical fan}

The present invention relates to an apparatus for adjusting the rotation angle of a fan, and more particularly, to provide a cooling efficiency and convenience of use by allowing the user to adjust the head rotation angle of a fan having a fan for blowing. will be.

The fan 30 is used as a cooling means in the summer when the external temperature is high, and as shown in FIG. 1, a pedestal 33 having switches 31 and 32 for adjusting the rotation time and the rotation speed is provided below. .

Above the support 34 protruding upward of the pedestal 33, the head 35 is coupled to the motor 36, which is a driving means, and the motor shaft 37 protrudes forward of the motor 36. 홴 38 is combined.

A protection net 39 is installed outside the shock 38 to prevent a safety accident, and the head 35 rotates the entire head 35 in a left and right direction at a predetermined angle. It is a structure provided with the rotation angle adjusting device 40.

Conventionally, the rotation angle adjusting device 10 is applied to a fan, which will be described below with reference to FIG. 6.

Rotation angle adjustment device 10 to which the prior art is applied to the worm 15 to the motor shaft 14 provided in the bracket 13 is formed integrally in the rear of the motor 12 fixed to the head 11 Form.

The worm 15 is fixed and lifted by the handle 17 to the worm wheel 19 fixed to the lifting and lowering shaft 18 connected to the handle 17 protruding to the outside of the cover and connected to and separated from the worm 15. To select.

The driven gear 22 is fixed to the bracket 13 on the side of the lift and reinforcement shaft 18 and the support 20 to fix the head 11 to the lower side and the link 21 fixed to the hinge 21. The driven gear 22 is configured to be engaged with the drive gear 23 fixed to the lower end of the lift shaft 21.

By pulling or pressing the handle in the above state, the worm wheel is connected to and detached from the worm. In the state in which the worm wheel is separated from the worm, the head is not rotated in the left and right directions with respect to the pedestal but is fixed in one direction. Only the wind blows.

Then, if the worm wheel is engaged with the worm, the driving gear rotates the driven gear and one end is fixed eccentrically to the driven gear, and the other side of the head is left and right by reciprocating movement while drawing a certain trajectory. , Can rotate in a right angle.

In the prior art as described above, in many cases, the wind of the fan is not transmitted only in one direction but has a merit that it can be widely used by sending it within the rotation angle range.

However, in this case, since the variable range of the head is in a determined state, the rotation angle of the head is fixed by one person or by several people, and the rotation angle of the head does not change even in a narrow place.

In particular, when the head is rotated in a narrow place where there is no space as much as the angle of rotation of the head, the head is rotated to some extent and then caught by surrounding objects or walls, which causes the motor to fail, causing noise and causing motor load. Of course, there were problems such as causing various types of gears.

Therefore, the present invention is to solve the problems as described above by improving the rotation angle adjusting device provided in the fan to allow the user to set the rotation angle range of the head arbitrarily according to the number and position of the user to improve the quality of the fan and It aims to contribute to the improvement of users' convenience.

1 is a perspective view showing a fan for explaining the present invention.

Figure 2 is a cross-sectional view showing a rotation angle control device of the fan to which the technology of the present invention is applied.

Figure 3 is an exploded perspective view extracting the main portion of the rotation angle control device of the fan of the present invention.

Figure 4 is a cross-sectional view of the main portion of the rotation angle control device of the present invention fan.

Figure 5 is a cross-sectional view of the main portion of the present invention extract the main portion of the rotation angle control device of the fan.

Figure 6 is a cross-sectional view showing a rotation angle adjusting device of a fan to which the prior art is applied.

* Description of the symbols used in the main parts of the drawings *

Hereinafter, with reference to the accompanying drawings will be described the configuration and operation of the preferred embodiment of the present invention for achieving the above object.

1 is a perspective view showing a fan for explaining the present invention, Figure 2 is a cross-sectional view showing a rotation angle adjustment device of the fan to which the technology of the present invention is applied, Figure 3 is a main portion of the rotation angle adjustment device of the fan of the present invention Figure 4 is an exploded perspective view, Figure 4 is a cross-sectional view showing the main portion of the rotation angle control device of the fan of the present invention, Figure 5 will be described together as a planar state cross-sectional view of the main portion of the rotation angle control device of the fan of the present invention.

The fan 30 is provided below with a pedestal 33 having switches 31 and 32 for adjusting the rotation time and rotation speed.

Above the support 34 protruding upward of the pedestal 33, the head 35 is coupled to the motor 36, which is a driving means, and the motor shaft 37 protrudes forward of the motor 36. 홴 38 is combined.

A protection net 39 is installed outside the shock 38 to prevent a safety accident, and the head 35 rotates the entire head 35 in a left and right direction at a predetermined angle. Rotation angle adjustment device 40 is provided.

The rotation angle adjusting device 40 forms a worm 45 on the motor shaft 37 provided inside the bracket 42 integrally formed at the rear of the motor 36 fixed to the head 35.

The worm 45 is fixed to the worm wheel 49 on the lift and reinforcement shaft 48 connected to the handle 47 protruding to the outside of the cover 46 to be lifted and lowered by the handle 47 to the worm 45 and Allows you to choose connections and exits.

The driven gear 51 fixed to the bracket 42 on the side of the lift and reinforcement shaft 48 and the lower end of the support 50 to which the head 35 is fixed and the other end of the link 50 to which the one end is hinged is fixed. In addition, the driven gear 51 is configured to engage with the drive gear 53 is fixed to the lower end of the lifting and lowering shaft (48).

In the present invention, the rotation angle adjusting device 40 is improved so that the rotation angle can be changed by a user's selection.

Rotation angle adjustment device 40 of the present invention for this purpose, the insertion groove 60 which is provided below the driven gear 51 to be rotated by the drive gear 53 is fixed to the lower end, the shaft 48 It is to have a control gear 62 that meshes with the internal gear 61 is formed in.

The adjusting gear 62 is raised and lowered by an adjusting pin 63 penetrating through the driven gear 51 and protruding out of the cover 46, and is adjusted between the adjusting pin 63 and the cover 46. A spring 64 is further provided for restoring the pin 63.

The lower side of the driven gear 51 is provided with a link gear 66 fixed by a fixed shaft 65 to be in contact with the control gear 62.

Under the link gear 66, one end is connected to the other end of the link 50, which is hinged to the support 34, and the center of gravity P of the driven gear 51 by the rotation of the adjusting gear 62 and the link. By changing the distance (D, D1, D2 ...) between the fixed point (P1) of the (50) to be able to adjust the rotation angle.

Of course, by varying the size of the link gear 66, it will be obvious that the amount of change can be varied between the shaft center P of the driven gear 51 and the fixed point P1 of the link 50.

The present invention as described above;

As in the prior art, the handle 47 protruding out of the head 35 cover 46 of the fan 30 is raised or lowered so that the worm wheel 49 selects a connection with the worm 45 and detaches the fan 30. Can rotate at a certain angle.

In the present invention, the center axis P of the driven gear 51 by using the control pin 63 protruding out of the cover 46 through the drive gear 51 before operating the handle 47 as described above. After setting the rotation angle of the head 35 by changing the distance (D, D1, D2 ...) between the fixed point (P1) and the link 50, the head 35 is adjusted as much as the knob is operated. Will rotate.

Looking at this in detail;

Pressing the adjustment pin 63 is inserted into the insertion groove 60 formed below the driven gear 51 to engage the internal gear 61 and the upper side and the link gear 66 and the lower side to engage the driven gear 51 and the link. The adjusting gear 62, which has been formed in one body with the gear 66, descends and is separated from the internal gear 61 and the driven gear 51, so that the adjusting gear 62 remains in contact with only the link gear 66. do.

In this state, when the adjusting pin 63 is rotated, the adjusting gear 62 rotates and the link gear 66 engaged with the adjusting gear 62 rotates.

Then, the position of the fixed point (P1) of the link gear 66 and the fixed link 50 is changed, and when the adjustment is completed, release the adjustment pin 63 that was pressed, the adjustment pin 63 is the spring (64) To restore the original position.

The upper side of the adjusting gear 62 is engaged with the internal gear 61 of the driven gear 51 by restoring the adjusting pin 63, and the lower side maintains the connection with the link gear 66.

In this state, the handle 47 is operated to engage the worm wheel 49 and the worm 45, the worm wheel 49 rotates the drive gear 53, and the drive gear 53 rotates the driven gear 51. Let's do it.

At this time, the driven gear 51 is rotated together with the link gear 66 engaged with the control gear 62, as well as the control gear 62 meshed with the internal gear 61, so that the link 50 has a constant trajectory. While drawing the head 35 will be rotated at a predetermined angle in the left and right directions.

In the present invention, the link gear 66 is arbitrarily rotated by the adjusting gear 62 to change the position of the fixed point P1 of the link 50 so that the trajectory of the link 50 can be varied, thereby freely adjusting the angle conversion. Will be.

5, the distance (D, D1, D2 ...) between the fixed point P1 of the link 50 and the axis P of the driven gear 51 by adjusting the link gear 66. By varying the rule of thumb will be different.

In particular, the farther distance (D, D1, D2 ...) between the fixed point P1 of the link 50 and the shaft center P of the driven gear 51, the larger the rule of thumb of the link 50 becomes. The rotation angle is also increased, and the smaller the distance (D, D1, D2 ...) between the fixed point P1 of the link 50 and the axis center P of the driven gear 51, the trajectory of the link 50 becomes As it becomes smaller, the angle of rotation becomes smaller.

Of course, by varying the size of the link gear 66, the change of the distance (D, D1, D2 ...) between the fixed point P1 of the link 50 and the axis center P of the driven gear 51 Naturally, it can be varied.

The present invention further includes an internal gear 61, an adjusting gear 62, and a link gear 66 on the driven gear 51 to change the path of the link 50 so that it can be fixed at an existing fixed rotation angle. By rotating the head 35 at various rotation angles off, it is designed to change the rotation angle in a small place as well as a lot of users.

The present invention as described above improves the rotation angle adjusting device provided in the fan so that the user can set the rotation angle of the head arbitrarily according to the number and position of the user can contribute to the improvement of the quality of the fan and the user's convenience Various effects can be obtained.

Claims (4)

A worm 45 formed on the motor shaft 37 provided inside the bracket 42 integrally formed at the rear of the motor 36 provided on the head 35; The worm 45 is fixed to the worm wheel 49 on the lift and reinforcement shaft 48 connected to the handle 47 protruding to the outside of the cover 46 to be lifted and lowered by the handle 47 to the worm 45 and To choose concatenations and departures; The driven gear 51 fixed to the bracket 42 on the side of the lift and reinforcement shaft 48 and the lower end of the support 50 to which the head 35 is fixed and the other end of the link 50 to which the one end is hinged is fixed. Equipped; The driven gear (51) in the fan (30) having a rotation angle adjusting device (40) to be engaged with the drive gear (53) fixed to the lower end of the lift shaft (48); An insertion groove (60) formed with an internal gear (61) below the driven gear (51); An adjusting gear 62 engaged with the internal gear 61; The control gear 62 is raised and lowered by an adjustment pin 63 penetrating the driven gear 51 and protruding out of the cover 46; A link gear 66 fixed below the driven gear 51 and fixed to the fixed shaft 65 and connected to the adjustment gear 62; The lower end of the link gear 66, one end is connected to the other end of the link 50 is hinged fixed to the support (34), characterized in that the rotation angle adjustment device of the fan. The method of claim 1; The change of the rotation angle of the head 35 of the fan 30 is caused by the rotation of the adjustment gear 62 and the distance D between the shaft center P of the driven gear 51 and the fixed point P1 of the link 50. , D1, D2 ...) by adjusting the rotation angle of the fan, characterized in that for changing. The method of claim 1; The distance (D, D1, D2 ..) between the shaft center (P) of the driven gear 51 and the fixing point (P1) of the link 50 is changed by varying the size of the link gear 66 The rotation angle control device of the fan. The method of claim 1; The adjustment pin 63, the rotation angle control device of the fan, characterized in that it further comprises a spring (64) for restoration.