Roof fan

Abstract

The utility model relates to a roof fan which comprises a ceiling mounting base, an electric rotating base is rotatably arranged at the lower end of the ceiling mounting base, sliding frames are arranged on the left side and the right side of the electric rotating base in a left-right sliding mode, fan heads are hinged to the outer ends of the two sliding frames, and the two fan heads are arranged on the left side and the right side of the electric rotating base. The fan head can swing up and down relative to the sliding frames to adjust the blowing angle, and a driving device is further arranged on the electric rotating base and used for driving the two sliding frames to move inwards or outwards. According to the roof fan, the fan heads are arranged on the sliding frames on the two sides and can adjust the vertical air blowing angle, the driving device can drive the two sliding frames to move inwards or outwards mutually, and therefore the roof fan is flexible and changeable in air blowing position, wide in air blowing range, simple in structure, convenient to use and capable of meeting the requirement that multiple persons use the roof fan at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field, especially a roof fan. BACKGROUND

[0002] The roof fan is one of many electric fans, is a kind of relatively novel electric fan, is also a kind of relatively common heat dissipation device with lower price, and it is suitable for summer, with the development of technology, the types of roof fan are more and more, shape is also different, the emergence of roof fan can carry out heat dissipation cooling effect to object or human body.

[0003] But the existing roof fan can only realize fixed-point blowing or left-right swing blowing, cannot do other adjustment, cannot satisfy the demand of simultaneous use of multiple people. INVENTION CONTENTS

[0004] The utility model aims at at least in certain extent solve one of the problems existing in prior art related, and this utility model provides a roof fan.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A roof fan, including ceiling mounting seat, the lower end of the ceiling mounting seat is rotatably provided with electric rotating seat, the left and right sides of the electric rotating seat are slidably provided with sliding frame, the outer end of the two sliding frames is hingedly provided with fan head, the two fan heads are arranged on the left and right sides of the electric rotating seat, and the fan head can be adjusted blowing angle by up-down swing relative to the sliding frame, and driving device is further arranged on the electric rotating seat, and the driving device is used to drive the two sliding frames to move towards each other or move away from each other.

[0007] In some embodiments, the front and rear sides of the electric rotating seat are provided with slide rails extending along the left and right directions, the sliding frame includes a sliding block plate slidably arranged in the slide rail, a fan rear cover seat is arranged at the upper end of the fan head, a rotating shaft is arranged on the fan rear cover seat, and the rotating shaft is rotatably installed on the sliding block plate.

[0008] In some embodiments, a plurality of fixing holes are circumferentially arranged on the side wall of the fan rear cover seat with the rotating shaft as the center, a fixing rod is movably arranged on the sliding block plate, and one end of the fixing rod can be inserted into the fixing hole, so as to fix the fan head.

[0009] In some embodiments, the driving device comprises a first motor arranged in the electric rotating seat, an output shaft of the first motor extends out of the electric rotating seat and is provided with a first gear, a rectangular transverse notch is arranged on the sliding block plate, a rack capable of engaging with the first gear is arranged in the rectangular transverse notch, and the racks in the two rectangular transverse notches are arranged above and below the first gear respectively.

[0010] In some embodiments, a circular groove is arranged at the lower end of the ceiling mounting seat, a rotating ring is arranged at the upper end of the electric rotating seat and is rotatably arranged in the circular groove, an internal gear ring is arranged on the inner wall of the circular groove, and a second motor is arranged in the electric rotating seat, and a second gear capable of engaging with the internal gear ring is arranged on the output shaft of the second motor.

[0011] Compared with the prior art, the beneficial effects of the utility model are that: the fan head is arranged on the sliding frame on both sides, the fan head can adjust the up-down blowing angle, the driving device can drive the two sliding frames to move inward or outward, the blowing position of the roof fan is flexible and changeable, the blowing range is wide, the structure is simple, the use is convenient, the demand of simultaneous use of multiple people can be met. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a three-dimensional schematic view of the utility model;

[0013] Figure 2 It is a front view and a partial enlarged schematic view of the utility model;

[0014] Figure 3 It is a partial enlarged schematic view of the utility model;

[0015] Figure 4 It is a sectional view of the ceiling mounting seat and the electric rotating seat of the utility model. DETAILED DESCRIPTION

[0016] The following detailed implementation provides a plurality of different embodiments or examples for implementing the utility model. Of course, these are only embodiments or examples and are not intended to be limiting. In addition, repeated reference numbers may be used to indicate in different embodiments, such as repeated numbers and / or letters. These repetitions are for the purpose of simply and clearly describing the utility model, and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0017] As Figures 1-4The illustrated one roof fan, including a ceiling mounting seat 1, the lower end of the ceiling mounting seat 1 is rotatably provided with an electric rotating seat 2, the left and right sides of the electric rotating seat 2 are slidably provided with a sliding frame 3, the outer end of the two sliding frames 3 is hingedly provided with a fan head 4, the two fan heads 4 are provided on the left and right sides of the electric rotating seat 2, and the fan head 4 can be adjusted to blow the angle by swinging up and down relative to the sliding frame 3, and the electric rotating seat 2 is also provided with a driving device, and the driving device is used to drive the two sliding frames 3 to move towards each other or move away from each other.

[0018] According to the above structure, the fan head 4 can follow the sliding frame 3 to adjust the horizontal left and right expansion, and the fan head 4 can adjust the up and down blowing angle and follow the electric rotating seat 2 to rotate, so that the blowing position of the roof fan is flexible and variable, the blowing range is wide, and the structure is simple, convenient to use, and can meet the demand of many people using at the same time.

[0019] Referring to Figure 1 、 Figure 2 As shown, the front and rear sides of the electric rotating seat 2 are provided with sliding rails 21 extending in the left and right directions, the sliding frame 3 includes a sliding block plate 22 slidingly arranged in the sliding rail 21, the upper end of the fan head 4 is provided with a fan rear cover seat 23, and the fan rear cover seat 23 is provided with a rotating shaft 24, the rotating shaft 24 is rotatably installed on the sliding block plate 22, and the left and right sliding block plates 22 can slide in the sliding rail 21, and then the blowing angle of the fan head 4 is adjusted by rotating the rotating shaft 24.

[0020] Referring to Figure 3 As shown, a plurality of fixing holes 31 are circumferentially arranged on the side wall of the fan rear cover seat 23 with the rotating shaft 24 as the center, and a fixing rod 32 is movably arranged on the sliding block plate 22, one end of the fixing rod 32 can be inserted into the fixing hole 31, so as to fix the fan head 4, when adjusting the blowing angle of the fan head 4, first disengage the fixing rod 32 from the fixing hole 31, then rotate the rotating shaft 24 as the rotating shaft, after adjustment, finally insert the fixing rod 32 into the corresponding fixing hole 31.

[0021] Specifically, the fixing hole 31 is provided with two, that is, the blowing angle of the fan head 4 has two kinds, the first kind is that the blowing surface of the fan head 4 blows vertically downward, and the other kind is that it blows outward at an angle of 45°.

[0022] Referring to Figure 1 、 Figure 2 、 Figure 4As shown, the driving device comprises a first motor 41 arranged in the electric rotating seat 2, an output shaft of the first motor 41 penetrates out of the electric rotating seat 2 and is provided with a first gear 42, a rectangular transverse notch 43 is arranged on the sliding block plate 22, a rack 44 capable of engaging with the first gear 42 is arranged in the rectangular transverse notch 43, and the racks 44 in the two rectangular transverse notches 43 are arranged above and below the first gear 42 respectively.

[0023] When the driving device works, the first motor 41 drives the first gear 42 to rotate, the first gear 42 engages with the racks 44 on the upper side and the lower side respectively, thereby driving the sliding block plates 22 on the two sides to move towards each other or move away from each other.

[0024] A circular recess is arranged at the lower end of the ceiling-mounted mounting seat 1, a rotating ring 51 is arranged at the upper end of the electric rotating seat 2 and is rotatably arranged in the circular recess, an inner gear ring 52 is arranged on the inner wall of the circular recess, and a second motor 53 is arranged in the electric rotating seat 2, an output shaft of the second motor 53 is provided with a second gear 54 capable of engaging with the inner gear ring 52.

[0025] The rotating principle of the electric rotating seat 2 is as follows: the second motor 53 drives the second gear 54 to rotate, the second gear 54 engages with the inner gear ring 52, and since the inner gear ring 52 is fixed, the second gear 54, the second motor 53 and the electric rotating seat 2 can rotate along the inner gear ring 52.

[0026] The basic principle and main features of the present application and the advantages of the present application are shown and described above in combination with the drawings, and those skilled in the art should understand that the present application is not limited by the above embodiments, the above embodiments and the description in the specification are only to illustrate the principle of the present application, and various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A rooftop fan, characterized in that: The device includes a ceiling mount (1), an electric rotating seat (2) rotatably mounted at the lower end of the ceiling mount (1), sliding frames (3) sliding left and right on both sides of the electric rotating seat (2), and fan heads (4) hinged to the outer ends of both sliding frames (3). The two fan heads (4) are located on the left and right sides of the electric rotating seat (2), and the fan heads (4) can swing up and down relative to the sliding frames (3) to adjust the blowing angle. A driving device is also provided on the electric rotating seat (2), which is used to drive the two sliding frames (3) to move inward or outward relative to each other.

2. A rooftop fan according to claim 1, characterized in that: The electric rotating seat (2) is provided with slide rails (21) extending in the left and right direction on both the front and rear sides. The sliding frame (3) includes a slider plate (22) slidably disposed in the slide rail (21). A fan rear cover seat (23) is provided at the upper end of the fan head (4). A rotating shaft (24) is provided on the fan rear cover seat (23). The rotating shaft (24) is rotatably mounted on the slider plate (22).

3. A rooftop fan according to claim 2, characterized in that: Multiple fixing holes (31) are arranged in a circular array around the pivot (24) on the side wall of the fan rear cover (23). A fixing rod (32) is movably inserted through the slider plate (22). One end of the fixing rod (32) can be inserted into the fixing hole (31) to fix the fan head (4).

4. A rooftop fan according to claim 2, characterized in that: The driving device includes a first motor (41) disposed in the electric rotating seat (2). The output shaft of the first motor (41) extends out of the electric rotating seat (2) and is provided with a first gear (42). A rectangular horizontal slot (43) is provided on the slider plate (22). A rack (44) that can mesh with the first gear (42) is provided in the rectangular horizontal slot (43). One of the racks (44) in the two rectangular horizontal slots (43) is located above the first gear (42), and the other is located below the first gear (42).

5. A rooftop fan according to claim 1, characterized in that: A circular groove is provided at the lower end of the ceiling mounting base (1), and a rotating ring (51) is provided at the upper end of the electric rotating base (2) and is rotatably mounted in the circular groove. An internal gear ring (52) is provided on the inner wall of the circular groove. A second motor (53) is provided in the electric rotating base (2), and a second gear (54) that can mesh with the internal gear ring (52) is provided on the output shaft of the second motor (53).

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