Device for controlling swing amplitude of fan

Abstract

The utility model discloses a device for controlling the swing amplitude of a fan, the fan comprises a supporting seat, a machine base and a fan head, the supporting seat is rotatably connected with the machine base, the machine base is rotatably connected with the fan head, the device is characterized by further comprising a right-angle Z-shaped rod and a micro motor, the rear end of the right-angle Z-shaped rod is upwards inserted into the rear portion of the machine base, and the front end of the right-angle Z-shaped rod is downwards inserted into the top of the supporting seat; a fixed first gear is arranged at the front end, close to the right angle, of the right-angle Z-shaped rod, and a fixed second gear is arranged at the top end of a rotating shaft of the micro motor and meshed with the first gear. The circuit board is provided with a plurality of time-delay relays, the time-delay relays are electrically connected with the swing button on the front face of the supporting seat, the circuit board is arranged in the supporting seat and electrically connected with the micro motor, and the circuit board controls the micro motor to rotate forwards and backwards. According to the device for controlling the swing amplitude of the fan, the swing amplitude of the fan head can be selected in multiple stages, various actual requirements can be met, the switch button is arranged on the front face of the fan, operation is more convenient, and the device has high practical value and popularization value.

Description

TECHNICAL FIELD

[0001] The utility model relates to the device technical field of control fan swing amplitude, specifically point to a kind of device of control fan swing amplitude. BACKGROUND

[0002] Electric fan, short for fan, is a kind of household appliance that uses electric motor to drive fan blade rotation to accelerate air flow, mainly used for cooling and air circulation. It is widely used in homes, offices, stores, hospitals and hotels.

[0003] General household electric fan: there are ceiling fan, table fan, floor fan, wall fan, etc. Table fan and floor fan are divided into head-shaking and non-shaking. When there are many people, floor fan is generally used because it has stronger wind power and can swing left and right to send cool wind to people in different directions.

[0004] The swing control of the floor fan currently in common use is traditional mechanical design, with only one swing amplitude and unable to adjust. However, when the weather is hot and there are few people, the fan does not swing left and right, and some people may not feel the wind. If the fan swings left and right, the swing amplitude is too large and cannot be adjusted, and the limited wind power cannot be better utilized. In addition, the swing switch is set at the rear of the fan head, which is not as convenient as the front button. INVENTION CONTENTS

[0005] The utility model aims at providing a device for controlling the swing amplitude of a fan to solve the problems in the background technology.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] The utility model relates to a device for controlling the swing amplitude of a fan, wherein the fan comprises a support base, a base and a fan head, the support base is rotationally connected with the base, and the base is rotationally connected with the fan head, characterized in that it further comprises a right-angle Z-shaped rod and a micro motor, the rear end of the right-angle Z-shaped rod is inserted upward into the rear part of the base, and the front end is inserted downward into the top part of the support base, a fixed gear one is arranged near the right angle of the front end of the right-angle Z-shaped rod, a fixed gear two is arranged at the top end of the rotating shaft of the micro motor, and the gear two is engaged with the gear one.

[0008] Further comprising a circuit board, the circuit board is provided with a plurality of time-delay relays, the time-delay relays are electrically connected with the swing amplitude buttons on the front of the support base, the circuit board is arranged in the support base and electrically connected with the micro motor, and the circuit board controls the forward and reverse rotation of the micro motor.

[0009] As an improvement, the right-angle Z-shaped rod is rotationally connected with the base and the support base.

[0010] As improvement, the micro motor is fixed in the support base, and the rotating shaft of the micro motor penetrates the top of the support base.

[0011] As improvement, the micro motor is a direct current motor.

[0012] The utility model discloses compared with prior art has the advantages of: circuit board access direct current, delay relay includes control fan head swing angle is 60 degrees, 90 degrees, 120 degrees's three, corresponding three swing button.For example, press down 60 degrees swing button, micro motor is under the control of delay relay and continuously reverses, gear two positive and negative rotation drive gear one positive and negative rotation, make the left and right swing of right angle Z shape pole rear end, drive the left and right swing of machine base, realize fan head left and right swing 30 degrees.

[0013] The device for controlling the swing range of the fan, the swing range of the fan head has multiple levels of options, can satisfy various actual demands, the switch button is arranged on the front face of the fan, operation is more convenient, has very high practical value and popularization value. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, below will be to the drawings needed to be used in the embodiment or prior art description simple introduction, obviously, the drawings listed below only some structural schematic diagram of the utility model, and not all.

[0015] Figure 1 It is a kind of device for controlling the swing range of the fan of the utility model structure schematic diagram.

[0016] Reference signs:

[0017] Support base 1;Machine base 2;Fan head 3;Right angle Z shape pole 4;Micro motor 5;Gear one 6;Gear two 7. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiment only part of the embodiment of the utility model, not all the embodiments.Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor are within the scope of the utility model protection.

[0019] In the description of the embodiments of the utility model, it needs to be explained that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like appear, the indicated orientation or position relationship is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship commonly placed when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. The indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0020] In addition, if the terms "first", "second", "third" and the like appear, they are only used for differentiation in description and cannot be understood as indicating or implying relative importance. If the terms "horizontal", "vertical", "overhanging" and the like appear, they do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0021] In the description of the embodiments of the utility model, if the terms "a plurality of", "several" appear, they represent at least two.

[0022] In the description of the embodiments of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, if the terms "setting", "mounting", "connecting", "connection" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be connected inside two elements. For ordinary skilled persons in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0023] The embodiments are combined with the drawings Figure 1 A device for controlling the swing amplitude of a fan is described in detail.

[0024] The device for controlling the swing amplitude of the fan, the fan comprises a support seat 1, a base 2, a fan head 3, the support seat 1 is rotationally connected with the base 2, the base 2 is rotationally connected with the fan head 3, characterized by further comprising a right-angle Z-shaped rod 4 and a micro motor 5, the rear end of the right-angle Z-shaped rod 4 is inserted upwards into the rear part of the base 2, and the front end is inserted downwards into the top of the support seat 1, a fixed gear one 6 is arranged on the front end of the right-angle Z-shaped rod 4, a fixed gear two 7 is arranged on the top end of the rotating shaft of the micro motor 5, and the gear two 7 is engaged with the gear one 6.

[0025] The circuit board is provided with a plurality of time-delay relays, and the time-delay relays are electrically connected with the swing buttons on the front surface of the support base 1.

[0026] The right-angle Z-shaped rod 4 is rotationally connected with the base 2 and the support base 1.

[0027] The micro motor 5 is fixed in the support base 1, and the rotating shaft of the micro motor 5 penetrates the top of the support base 1.

[0028] The micro motor 5 is a direct current motor.

[0029] In the specific implementation, the circuit board is connected with direct current, and the time-delay relays include three kinds of time-delay relays for controlling the swing angle of the fan head 3 to be 60 degrees, 90 degrees and 120 degrees, and correspond to three swing buttons. For example, the swing button 8 for 60 degrees is pressed, and the micro motor 5 is continuously forward and reverse rotated under the control of the time-delay relay, the gear two 7 is forward and reverse rotated to drive the gear one 6 to be forward and reverse rotated, the right-angle Z-shaped rod 4 is swung left and right at the rear end, the base 2 is swung left and right, and the fan head 3 is swung left and right by 30 degrees.

[0030] The above describes the utility model and its implementation mode, and the description is not limited, and the actual protection range is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, and the changes or replacements should be covered in the protection range of the utility model. Therefore, the protection range of the utility model should be subject to the protection range of the claims.

Claims

1. A device for controlling the oscillation amplitude of a fan, said fan comprising a support base (1), a frame (2) and a fan head (3), said support base (1) being connected in rotation to the frame (2), said frame (2) being connected in rotation to the fan head (3), characterized in that, It also includes a right angle Z-shaped rod (4) and a micro motor (5), the rear end of the right angle Z-shaped rod (4) is inserted into the rear part of the base (2) upward, the front end is inserted into the top of the support base (1) downward, the front end of the right angle Z-shaped rod (4) is provided with a fixed gear one (6), the top end of the rotating shaft of the micro motor (5) is provided with a fixed gear two (7), the gear two (7) is engaged with the gear one (6); It also includes a circuit board, the circuit board is provided with a plurality of delay relays, the delay relays are electrically connected with the swing button on the front surface of the support base (1), the circuit board is arranged in the support base (1) and is electrically connected with the micro motor (5), the circuit board controls the forward and reverse rotation of the micro motor (5).

2. A device for controlling the oscillation amplitude of a fan as claimed in claim 1, characterized in that The right angle Z-shaped rod (4) is rotatably connected with the base (2) and the support base (1).

3. The device for controlling the swing amplitude of a fan according to claim 1, wherein The micro motor (5) is fixed in the support base (1), the rotating shaft of the micro motor (5) penetrates the top of the support base (1).

4. The device for controlling the swing amplitude of a fan according to claim 1, wherein The micro motor (5) is a direct current motor.

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