Fan with wind direction adjusting function

Abstract

The fan with the wind direction adjusting function comprises a motor (3), the motor is connected to the inner wall of a fan shell through a sleeve (6) and a rib plate, an impeller (2) is located at the left end of the sleeve (6), a guide wheel is arranged at the right end of the shell, a plurality of battens (8) are fixedly connected in a rim (7) of the guide wheel in parallel in the chord length direction of the rim, and the intervals between the adjacent battens are equal. A shaft sleeve (10) in the center of the guide wheel penetrates through the batten in a cutting mode, the right end closed part of the sleeve extends rightwards to form a shaft column (11), the shaft sleeve (10) is arranged on the shaft column (11) in a sleeving mode, a screw (12) is screwed in the right end of the shaft column, and a flange at the right end of the screw is attached to the right end face of the shaft sleeve. The device has the beneficial effect that the direction of airflow can be changed by rotating the guide wheel. The structure is simple, and the manufacturing cost can be reduced; when wind direction needs to be adjusted, the screw is loosened, the guide wheel is rotated by a certain angle, and then the screw is tightened; the use is convenient.

Description

Technical Field

[0001] This utility model relates to a fan, and more particularly to a fan with wind direction adjustment function. Background Technology

[0002] In some situations, it is necessary to adjust the wind direction of the fan, such as tilting the wind upwards, downwards, leftwards, or rightwards. For upward and downward tilting adjustments, one set of upward and downward drive devices is used to change the fan's tilt angle. For leftward and right tilting, a separate set of leftward and rightward drive devices is used to change the leftward or rightward tilt direction of the louvers at the fan outlet. The need for two sets of drive devices increases the fan's manufacturing cost. If the wind direction requires adjustments such as tilting leftwards or rightwards, both sets of devices must operate in conjunction, which is inconvenient. Furthermore, if the wind direction needs to change periodically, additional control devices must be added to both sets of devices. Utility Model Content

[0003] To facilitate the adjustment of the wind direction of the fan, this utility model proposes a fan with wind direction adjustment function, which only requires one set of devices to achieve adjustment of the wind direction at any angle.

[0004] The technical solution of this utility model is a fan with wind direction adjustment function, which includes a motor 3. The motor housing is fixedly inserted into a sleeve 6. Multiple stiffeners 4 are symmetrically connected between the outer circle of the sleeve 6 and the inner wall of the cylindrical housing 5 of the fan. An impeller 2 is connected to the main shaft of the motor. The main shaft of the motor faces away from the air outlet at the right end of the fan housing. A guide wheel is provided at the right end of the housing. Multiple strips 8 are fixedly connected parallel to each other along the chord length of the rim 7 of the guide wheel. The spacing between adjacent strips 8 is equal. The strips are tilted at a certain angle. The bushing 10 at the center of the guide wheel passes through the strip. The outer circle of the bushing is fixedly connected to the strip it contacts. The right end of the sleeve is closed. A shaft post 11 extends to the right from the closed end of the sleeve. The bushing 10 is fitted on the shaft post 11. A screw 12 is screwed into the right end of the shaft post. The flange at the right end of the screw is in contact with the right end face of the bushing.

[0005] The beneficial effects of this invention are that the airflow generated by the impeller is deflected when it passes through the strip plate, i.e., the wind direction is deflected. Rotating the guide wheel can change the direction of the airflow. Only one device is needed to achieve adjustment of the wind direction at any angle, which can reduce manufacturing costs; when it is necessary to adjust the wind direction, loosen the screw, rotate the guide wheel at a certain angle, and then tighten the screw; it is convenient to use. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the structure of the present invention.

[0007] Figure 2 for Figure 1 The right view.

[0008] Attached diagram symbols: 1-protective cover, 2-impeller, 3-motor, 4-stiffening plate, 5-shell, 6-sleeve, 7-rim, 8-strip plate, 9-reinforcing strip plate, 10-shaft sleeve, 11-shaft column, 12-screw, 13-surface bearing, 14-base. Detailed Implementation

[0009] A fan with wind direction adjustment function includes a motor 3, the motor housing is fixedly inserted into a sleeve 6, and multiple stiffening plates 4 are symmetrically connected between the outer circle of the sleeve 6 and the inner wall of the cylindrical housing 5 of the fan. The housing is connected to the base 14, and an impeller 2 is connected to the main shaft of the motor. The impeller is covered by a protective cover 1.

[0010] The main shaft of the motor faces away from the air outlet at the right end of the fan housing. A guide wheel is provided at the right end of the fan. Multiple strips 8 are fixedly connected to each other parallel to each other along the chord length of the guide wheel rim 7. The spacing between adjacent strips 8 is equal. The strips are flipped at a certain angle. The bushing 10 at the center of the guide wheel passes through the strip. The outer circle of the bushing is fixedly connected to the strip it contacts. The right end of the bushing is closed. A shaft post 11 extends to the right from the closed end of the bushing. The bushing 10 is fitted on the shaft post 11. A screw 12 is screwed into the right end of the shaft post. The flange at the right end of the screw is in contact with the right end face of the bushing.

[0011] The airflow generated by the impeller is deflected when it passes through the baffles, thus changing the airflow direction. Rotating the guide wheel can change the direction of the airflow, such as to the right, left, upper right, or lower left. To adjust the airflow direction, loosen the screw, rotate the guide wheel at a certain angle, and then tighten the screw.

[0012] The tilting angle of the strip 8 can be selected between 3 and 9 degrees, preferably 6 degrees.

[0013] The spacing between adjacent strips 8 is slightly larger than the width of the strip.

[0014] The guide wheel can be made of cast aluminum or injection molded. If injection molding is used, multiple reinforcing strips 9 are connected to the strip, which can reduce the thickness of the strip and help reduce the resistance of the strip to airflow. Adjacent reinforcing strips are parallel to each other and perpendicular to the strip.

[0015] By loosening the screw appropriately, the guide wheel can rotate under the action of airflow, thus allowing the airflow direction at the fan outlet to change periodically. The rotational speed of the guide wheel is related to the tightness of the screw; the looser the screw, the higher the rotational speed of the guide wheel. To smoothly adjust the rotational speed of the guide wheel, the shaft 11 has a taper, with the diameter of the right end of the shaft being smaller than the diameter of the left end. The inner circle of the bushing 10 has a taper that matches the shaft 11. To prevent the screw from rotating along with the guide wheel, a plane bearing 13 (thrust ball bearing) is provided between the flange of the screw 12 and the bushing, with the plane bearing fitted onto the screw.

Claims

1. A fan with wind direction adjustment function, comprising an electric motor (3), characterized in that, The motor housing is fixedly inserted into the sleeve (6). Multiple stiffening plates (4) are symmetrically connected between the outer circle of the sleeve (6) and the inner wall of the cylindrical housing (5) of the fan. An impeller (2) is connected to the main shaft of the motor. The main shaft of the motor faces away from the air outlet at the right end of the fan housing. A guide wheel is provided at the right end of the fan. Multiple strips (8) are fixedly connected to each other parallel to each other along the chord length of the rim (7) of the guide wheel. The spacing between adjacent strips (8) is equal. The strips are rotated at a certain angle. The bushing (10) at the center of the guide wheel passes through the strip. The outer circle of the bushing is fixedly connected to the strip it contacts. The right end of the sleeve is closed. A shaft column (11) extends to the right from the closed end of the sleeve. The bushing (10) is fitted on the shaft column (11). A screw (12) is screwed in the right end of the shaft column. The flange at the right end of the screw is in contact with the right end face of the bushing.

2. The fan with wind direction adjustment function according to claim 1, characterized in that, The side-flip angle of the strip (8) is 6 degrees.

3. The fan with wind direction adjustment function according to claim 1 or 2, characterized in that, The spacing between adjacent strips (8) is greater than the width of the strip.

4. The fan with wind direction adjustment function according to claim 3, characterized in that, The guide wheel is injection molded, and multiple reinforcing strips (9) are connected to the strip, with the reinforcing strips perpendicular to the strip.

5. The fan with wind direction adjustment function according to claim 3, characterized in that, The shaft (11) has a taper, the diameter of the right end of the shaft is smaller than the diameter of the left end of the shaft, the inner circle of the bushing (10) has a taper that matches the shaft (11), and a plane bearing (13) is provided between the flange of the screw (12) and the bushing.

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