Top-mounted oscillating fan

Abstract

The utility model discloses a top-mounted oscillating fan which comprises a base used for being fixed on a wall body, a reversing ring is rotatably installed below the base, a reversing seat is rotatably installed in an inner ring of the reversing ring, an inserting portion with the upper end and the lower end penetrating through is arranged on the bottom face of the reversing seat, and a motor stator is sleeved on the outer side of the inserting portion. A rotating shaft is installed in the center of the motor stator, the upper end of the rotating shaft extends out of the top face of the inserting part, a head shaking motor is installed on the base, an output shaft of the head shaking motor is connected with the upper end of the rotating shaft through an eccentric connecting piece, fan blades are fixed to the lower end of the rotating shaft, and the head shaking motor enables the rotating shaft to shake through the eccentric connecting piece. Compared with a four-connecting-rod structure or a gear structure, friction force is smaller, using is stable and reliable, effectiveness and smoothness of fan head shaking can be improved, the service life is prolonged, the blowing range can be greatly widened, dead-corner-free blowing can be achieved, applicability is high, and practicability is good.

Description

Technical Field

[0001] The utility model relates to an air supply device, in particular to a top-mounted oscillating fan. Background Art

[0002] The fan is a common structure, which is generally composed of a fan motor structure and a fan impeller. Although it can meet the general use requirements, the conventional fan motor structure only has a rotation function and cannot realize the shaking operation, that is, its blowing range is relatively limited, which affects the effect of the fan, so its applicability and practicality are limited. Therefore, a fan that can shake its head reciprocatingly has appeared on the market to increase the blowing range. The prior art usually adopts a four-bar structure or a gear structure as a mechanism to control the shaking of the fan. The four-bar structure can only achieve a shaking angle of less than 90°, and the blowing area of ​​the fan is small; while the fan with a gear structure has a large resistance between the gears and is not firmly fixed, which has an adverse effect on the operation of the fan shaking parts and is also seriously worn, thereby affecting the service life of the device. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a top-mounted oscillating fan.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A ceiling-mounted oscillating fan comprises a base for fixing on a wall, a reversing ring is rotatably installed below the base, a reversing seat is rotatably installed inside the inner ring of the reversing ring, the bottom surface of the reversing seat is provided with an inserting part penetrating at upper and lower ends, a motor stator is sleeved on the outer side of the inserting part, a rotating shaft is installed at the center of the motor stator, the upper end of the rotating shaft extends out from the top surface of the inserting part, an oscillating motor is installed on the top of the base, the output shaft of the oscillating motor is connected to the upper end of the rotating shaft through an eccentric connecting piece, and fan blades are fixed to the lower end of the rotating shaft.

[0006] Symmetrical mounting columns are arranged on both sides of the bottom surface of the base, a rotating seat is installed on the mounting columns, a first through hole is arranged on the rotating seat, an integral first rotating shaft is arranged on the reversing ring corresponding to the first through hole, and the first rotating shaft is rotatably installed in the first through hole.

[0007] The reversing ring is symmetrically provided with a second through hole, the axis of the second through hole is perpendicular to the axis of the first rotating shaft, the reversing seat is provided with an integral second rotating shaft corresponding to the second through hole, and the second rotating shaft is rotatably installed in the second through hole.

[0008] An insertion cavity is provided at the center of the motor stator, and the insertion part is inserted in the insertion cavity.

[0009] The inner wall of the insertion cavity is provided with a plurality of arranged positioning grooves along the axial direction, and the outer side of the insertion cavity is provided with positioning pins corresponding to the positioning grooves, and the positioning pins are inserted into the positioning grooves.

[0010] The upper and lower ends of the center of the insertion part are both provided with bearing cavities, and the bearings are installed in the bearing cavities.

[0011] A shell is installed at the bottom of the base.

[0012] The beneficial effects of the utility model are as follows: a reversing ring is rotatably installed under the base, a reversing seat is rotatably installed in the inner ring of the reversing ring, the bottom surface of the reversing seat is provided with an inserting part which passes through at upper and lower ends, the outer side of the inserting part is provided with a motor stator, the center of the motor stator is installed with a rotating shaft, the upper end of the rotating shaft extends from the top surface of the inserting part, an oscillating motor is installed on the top of the base, the output shaft of the oscillating motor is connected to the upper end of the rotating shaft through an eccentric connecting piece, and a fan blade is fixed to the lower end of the rotating shaft. The oscillating motor makes the rotating shaft shake through the eccentric connecting piece, and the reversing ring and the reversing seat rotate accordingly. Compared with the four-bar structure or the gear structure, the friction is smaller, the use is stable and reliable, which is beneficial to improving the effectiveness and smoothness of the fan shaking, extending the service life, and can also greatly improve the blowing range, and can achieve blowing without dead angles. It has strong applicability and good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is an exploded view of the utility model;

[0016] Figure 3 This is the installation diagram of the commutation seat, motor stator, and rotating shaft;

[0017] Figure 4 It is the structural diagram of the reversing seat;

[0018] Figure 5 This is the structural diagram of the motor stator. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0020] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0021] Some embodiments of the present invention are described below in conjunction with the accompanying drawings.

[0022] Reference Figure 1-5 , a top-mounted oscillating fan comprises a base 1 for fixing on a wall, a reversing ring 2 is rotatably installed at the bottom of the base 1, a reversing seat 3 is rotatably installed in the inner ring of the reversing ring 2, the bottom surface of the reversing seat 3 is provided with an inserting part 4 penetrating at both ends, a motor stator 5 is sleeved on the outer side of the inserting part 4, a rotating shaft 6 is installed at the center of the motor stator 5, the upper end of the rotating shaft 6 extends from the top surface of the inserting part 4, an oscillating motor 7 is installed on the top of the base 1, the output shaft of the oscillating motor 7 is connected to the upper end of the rotating shaft 6 through an eccentric connecting piece 8, a fan blade 9 is fixed to the lower end of the rotating shaft 6, the oscillating motor shakes the rotating shaft through the eccentric connecting piece, and the reversing ring and the reversing seat rotate accordingly, compared with the four-bar structure or the gear structure, the friction is smaller, the use is stable and reliable, which is conducive to improving the effectiveness and smoothness of the fan shaking, prolonging the service life, and can also greatly improve the blowing range, can achieve blowing without dead angles, strong applicability and good practicality.

[0023] Symmetrical mounting columns 10 are provided on both sides of the bottom surface of the base 1, a rotating seat 11 is installed on the mounting columns 10, a first through hole 12 is provided on the rotating seat 11, and an integral first rotating shaft 13 is provided on the reversing ring 2 corresponding to the first through hole 12. When the reversing ring 2 is installed, the first rotating shaft 13 is first rotatably installed in the first through hole 12, and then the rotating seat 11 is fixed to the mounting columns 10 by screws.

[0024] The reversing ring 2 is symmetrically provided with a second through hole 14 , the axis of which is perpendicular to the axis of the first rotating shaft 13 , and the reversing seat 3 is provided with an integral second rotating shaft 15 corresponding to the second through hole 14 , the second rotating shaft 15 is rotatably installed in the second through hole 14 .

[0025] The reversing seat 3 is provided with symmetrical extension arms 22, and the second rotating shaft 15 is provided on the outside of the extension arms 22. When installing the reversing seat 3, it is necessary to squeeze the extension arms 22 inwardly, and at the same time, the corresponding position of the reversing ring 2 is squeezed outwardly (all within the range of elastic deformation, and can be completely restored after loosening), leaving enough space for the second rotating shaft 15 to be installed in the second through hole 14. When installing, the second rotating shaft 15 on one side can be installed in the second through hole 14 first, and then the corresponding extension arms 22 and the corresponding positions of the reversing ring 2 can be moved to complete the installation.

[0026] The first rotating shaft 13 and the reversing ring 2, the reversing seat 3 and the second rotating shaft 15 are all integral structures. After installation, the reversing seat 3 and the reversing ring 2 can ensure the stability of the installation. If a separate structure is used, the rotating shaft may fall off.

[0027] An insertion cavity 16 is provided at the center of the motor stator 5, and the insertion portion 4 is inserted in the insertion cavity 16. The inner wall of the insertion cavity 16 is provided with a plurality of arranged positioning grooves 17 along the axial direction. A positioning pin 18 is provided on the outer side of the insertion cavity 16 corresponding to the positioning groove 17. The positioning pin 18 is inserted in the positioning groove 17, so as to prevent relative rotation between the motor stator 5 and the commutation seat 3.

[0028] A plurality of limit blocks 23 are circumferentially arranged on the outer side of the insertion portion 4, and the top surface of the motor stator 5 is in contact with the end of the limit block 23, or there is a gap of 0.5-2 mm between the motor stator 5 and the end of the limit block 23, so that a sufficient air gap is left between the motor stator 5 and the rotating shaft 6 to avoid uneven air gap that may lead to uneven magnetic field distribution, thereby affecting the output torque and efficiency of the motor.

[0029] In this product, the motor for driving the fan blades to rotate is composed of the commutation seat 3, the motor stator 5, and the rotating shaft 6. Figure 3 As shown, the commutation seat 3 and the motor stator 5 are semi-open structures, which can effectively improve the heat dissipation capability.

[0030] The upper and lower ends of the center of the inserting portion 4 are both provided with bearing cavities 19 , and bearings 20 are installed in the bearing cavities 19 .

[0031] A housing 21 is installed at the bottom of the base 1 to prevent external dust and the like from entering the interior, thereby affecting the life of the fan.

[0032] In the present invention, the term "plurality" means two or more than two, unless otherwise clearly defined. The term "and / or" used herein includes any and all combinations of one or more related listed items. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0033] It should be noted that when an element is referred to as being "assembled on", "installed on", "fixed on" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0034] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A top-mounted oscillating fan, comprising a base (1) for fixing on a wall, characterized in that A reversing ring (2) is rotatably mounted below the base (1), a reversing seat (3) is rotatably mounted inside the inner ring of the reversing ring (2), a plug-in portion (4) penetrating at both ends is provided on the bottom surface of the reversing seat (3), a motor stator (5) is sleeved on the outer side of the plug-in portion (4), a rotating shaft (6) is mounted at the center of the motor stator (5), the upper end of the rotating shaft (6) protrudes from the top surface of the plug-in portion (4), an oscillating motor (7) is mounted on the top of the base (1), an output shaft of the oscillating motor (7) is connected to the upper end of the rotating shaft (6) via an eccentric connecting piece (8), and a fan blade (9) is fixed to the lower end of the rotating shaft (6).

2. The top-mounted oscillating fan according to claim 1, characterized in that Symmetrical mounting columns (10) are arranged on both sides of the bottom surface of the base (1); a rotating seat (11) is mounted on the mounting columns (10); a first through hole (12) is arranged on the rotating seat (11); an integral first rotating shaft (13) is arranged on the reversing ring (2) corresponding to the first through hole (12); the first rotating shaft (13) is rotatably mounted in the first through hole (12).

3. The top-mounted oscillating fan according to claim 2, characterized in that The reversing ring (2) is symmetrically provided with a second through hole (14), the axis of the second through hole (14) being perpendicular to the axis of the first rotating shaft (13), and the reversing seat (3) is provided with an integral second rotating shaft (15) corresponding to the second through hole (14), the second rotating shaft (15) being rotatably mounted in the second through hole (14).

4. The top-mounted oscillating fan according to claim 1, characterized in that An insertion cavity (16) is provided at the center of the motor stator (5), and the insertion portion (4) is inserted into the insertion cavity (16).

5. The top-mounted oscillating fan according to claim 4, characterized in that The inner wall of the insertion cavity (16) is provided with a plurality of locating grooves (17) arranged in an axial direction, and the outer side of the insertion cavity (16) is provided with locating pins (18) corresponding to the locating grooves (17), and the locating pins (18) are inserted into the locating grooves (17).

6. The top-mounted oscillating fan according to claim 1, characterized in that Bearing cavities (19) are provided at both upper and lower ends of the center of the insertion portion (4), and a bearing (20) is installed in the bearing cavity (19).

7. The top-mounted oscillating fan according to claim 1, characterized in that A shell (21) is installed at the bottom of the base (1).

Images