Fan with variable-angle fan blades

Abstract

The utility model discloses a fan with variable-angle fan blades, which comprises fan blades (1), a casing (2), a slider (3), a transmission mechanism (4) and a motor (5), the fan blades (1) and the slider (3) are mounted on the casing (2), the fan blades (1) are connected with the slider (3), the slider (3) is connected with the transmission mechanism (4), the transmission mechanism (4) is connected with the motor (5), and the motor (5) is mounted on the casing. The utility model solves the problem that the fan can only change the air volume by adjusting the speed for a long time, and is beneficial to further improving the efficiency and safety. The fan is compact and simple in structure and convenient to manufacture, and can be processed and realized by adopting the prior art, and a fan driving part is not influenced at all.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fan, especially an automatic angle-adjusting fan blade, in particular, a variable-angle fan. BACKGROUND

[0002] The conventional fan blade angle is fixed, and the subsequent work is mainly to adjust the air volume by changing the rotating speed. Therefore, people hope to have a variable fan blade angle fan, which can realize automatic or semi-automatic change of the fan blade to adjust the fan air volume during use. SUMMARY

[0003] The utility model aims at the fact that the existing fan cannot adjust the blade angle during use, and designs a fan that can realize positive fan blade angle change and automatic or semi-automatic change of the fan blade angle through a motor driving mechanism.

[0004] TECHNICAL SCHEME

[0005] A fan with variable fan blade angle, which comprises a fan blade, a shell, a sliding block, a transmission mechanism and a motor. The fan blade and the sliding block are installed on the shell, the fan blade is connected to the sliding block, the sliding block is connected to the transmission mechanism, the transmission mechanism is connected to the motor, and the motor is installed on the shell.

[0006] Preferably, the transmission mechanism comprises a spiral wheel, a star gear and a driving wheel. The driving wheel is installed on the motor output shaft, the star gear is meshed with the driving wheel at one end and meshed with the spiral wheel at the other end, and the spiral wheel is connected to the sliding block.

[0007] Preferably, the transmission mechanism comprises a driving wheel coaxial with the motor, and the driving wheel is connected to the spiral wheel through a plurality of transmission gears.

[0008] Preferably, the spiral wheel comprises a spiral groove matched with the sliding block and an inner tooth connected to the transmission gear.

[0009] Preferably, the sliding block comprises an inclined groove matched with the fan blade and a cylinder in sliding cooperation with the spiral groove. The sliding block is connected to and installed on the shell with the fan blade and the spiral groove.

[0010] Advantages of the utility model

[0011] 1. The problem of changing the air volume by adjusting the speed of the fan for a long time is solved, which is beneficial to further improve the efficiency and safety.

[0012] 2. The structure is compact and simple, easy to manufacture, and can be processed by existing technology. The fan driving part is not affected. DRAWINGS

[0013] Figure 1The whole structure schematic view of the utility model

[0014] Figure 2 The transmission mechanism schematic view one of the utility model

[0015] Figure 3 The transmission mechanism schematic view two of the utility model

[0016] Figure 4 The lateral structure schematic view of the utility model

[0017] Figure 5 The fan blade driving mechanism schematic view of the utility model Specific implementation

[0018] The utility model will be further described below in conjunction with examples, but the protection scope of the utility model is not limited to this:

[0019] In conjunction with Figures 1-5 A fan blade angle variable fan, including fan blade 1, shell 2, slider 3, transmission mechanism 4, motor 5, its characterized in that fan blade 1 is installed on the shell with slider 3, fan blade 1 is connected with slider 3, slider 3 is connected with transmission mechanism 4, transmission mechanism 4 is connected with motor 5, motor 5 is installed on shell 2, and the arc-shaped groove that is matched with the angle transformation path of fan blade 1 is formed on shell 2.

[0020] Transmission mechanism 4 can be any one of the following two transmission mechanisms:

[0021] 1, as shown in Figure 2 Including spiral wheel 401, star gear 402, driving wheel 403, driving wheel 403 is installed on the output shaft of motor 5, star gear 402 one end is engaged with driving wheel 403 and the other end is engaged with spiral wheel 401, spiral wheel 401 is connected with slider 3, and driving wheel 403 is connected with spiral wheel 401 through a plurality of transmission gear pairs.

[0022] 2, as shown in Figure 3 Including driving wheel 403 coaxial with motor 5, and driving wheel 403 is connected with spiral wheel 401 through a plurality of transmission gears.

[0023] The working process of the utility model is as shown in Figure 1 Figure 1 is the smallest state of angle outside fan blade 1, Figure 4 is the maximum state of angle of fan blade 1. Figure 5 ​The fan blade 1 is shown in the maximum angle state, when the motor 5 rotates forward, the driving wheel 403 rotates forward, the star gear 402 rotates reversely, the spiral wheel 401 rotates forward, the slider 3 moves along the motor 5 axially downward, the fan blade 1 rotates, and the angle becomes smaller; when the fan blade 1 is in the minimum angle state, the motor 5 reverses, the driving wheel 403 reverses, the star gear 402 rotates forward, the spiral wheel 401 reverses, the slider 3 moves along the motor 5 axially upward, the fan blade 1 rotates, and the angle becomes larger.

[0024] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A fan with variable angle of the fan blade, characterized in that It includes fan blade (1), shell (2), slider (3), transmission mechanism (4), motor (5), fan blade (1) and slider (3) are installed on the shell (2), fan blade (1) is connected with slider (3), slider (3) is connected with transmission mechanism (4), transmission mechanism (4) is connected with motor (5), motor (5) is installed on the shell (2), the transmission mechanism (4) includes spiral wheel (401), star gear (402), driving wheel (403), driving wheel (403) is installed on the output shaft of motor (5), one end of star gear (402) is engaged with driving wheel (403), the other end is engaged with spiral wheel (401), spiral wheel (401) is connected with slider (3).

2. The fan of claim 1, wherein The transmission mechanism (4) includes a driving wheel (403) coaxial with the motor (5), the driving wheel (403) is connected with the spiral wheel (401) through a plurality of transmission gears.

3. The fan of claim 1 or 2, wherein The spiral wheel (401) includes a spiral groove (404) cooperating with the slider (3) and an inner tooth (405) connected with the transmission gear.

4. The fan of claim 1 wherein The slider (3) includes an inclined slot (6) cooperating with the fan blade (1) and a cylindrical (7) slidingly cooperating with the spiral groove (404), the slider (3) is connected with the fan blade (1) and the spiral groove (404) respectively and installed on the shell (2).

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