Oscillating fan structure

Abstract

The utility model discloses an oscillating fan structure which comprises a motor frame, a fan motor and a shaft rod, a mounting seat is arranged above the motor frame, and an oscillating control motor is fixed in the middle of the mounting seat; a rocker arm piece is arranged between the mounting seat and the motor frame; a convex shaft is fixed on the top surface of the motor frame; a vertical shaft hole is formed in one end of the rocker arm piece, and an inclined mounting hole is fixed to the other end of the rocker arm piece. A plurality of C-shaped groove holes are formed in the bottom of the inner wall of the vertical shaft hole, first balls are arranged in the C-shaped groove holes, the convex shaft is arranged in the vertical shaft hole, and the inner edges of the first balls are attached to the surface of the convex shaft; and a main shaft of the oscillating control motor is clamped in the inclined mounting hole. The air blowing device is reasonable in structural arrangement, beneficial to widening the air blowing range, capable of reducing friction between the shaft rod and the swing part through rolling connection of the first balls when the shaft rod and the vertical shaft hole of the swing part rotate relatively, capable of improving the overall use stability and prolonging the service life, high in applicability and good in practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of fans, and particularly relates to a structure of a swing fan. Background Art

[0002] A fan is a common electrical structure, which can improve the blowing range of the fan by rotating the fan blades. The fan motor in the prior art mainly includes a mounting seat, a housing fixed on the mounting seat, a driving motor in the mounting seat, and a shaft rod on the main shaft of the driving motor. Although it can meet the usage requirements in general cases, in the actual application process, due to the relatively fixed position of the shaft rod, it cannot meet the blowing requirements in different angular ranges, and conventional fans are also prone to wear during the swing rotation, affecting the smoothness and effectiveness of the swing. Therefore, the applicability and practicality are limited. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a structure of a swing fan with reasonable structure setting and beneficial to improving the use smoothness.

[0004] The technical solution for realizing the purpose of the utility model is a structure of a swing fan, including a motor frame, a fan motor in the motor frame, and a shaft rod fixed on the main shaft of the fan motor. An installation seat is arranged above the motor frame, and a swing control motor is fixed in the middle of the installation seat;

[0005] A swing arm member is arranged between the top surface of the installation seat and the top surface of the motor frame;

[0006] A convex shaft is fixed in the middle of the top surface of the motor frame;

[0007] One end of the swing arm member is provided with a vertical shaft hole, and the other end of the swing arm structure is fixed with an inclined mounting hole. The extension lines of the vertical shaft hole and the inclined mounting hole form a V shape;

[0008] A plurality of C-shaped slot holes are arranged at the bottom of the inner wall of the vertical shaft hole, and first balls are arranged in the C-shaped slot holes. The inner edges of the first balls extend into the vertical shaft hole;

[0009] The convex shaft is arranged in the vertical shaft hole, and the inner edges of the first balls are abutted against the surface of the convex shaft;

[0010] The main shaft of the swing control motor is clamped in the inclined mounting hole;

[0011] The swing control motor rotates, and the motor frame makes a conical rotation through the swing arm member.

[0012] Further preferably: The bottom surface of the installation seat is fixed with a housing by screws, and a through hole is arranged at the center of the housing;

[0013] A sphere is sleeved on the shaft rod, and a concave hole is arranged at the lower part of the outer wall of the sphere;

[0014] A second ball is arranged in the concave hole;

[0015] The lower part of the sphere is arranged in the through hole, and the lower surface of the second ball abuts against the inner wall of the through hole;

[0016] The fan motor drives the shaft rod to rotate in a conical shape with the sphere as the center point.

[0017] Further preferably: A gland is fixed on the top surface of the outer shell by screws;

[0018] The sphere is located between the outer shell and the gland.

[0019] Further preferably: At least one vertical groove is arranged on the outer wall of the sphere;

[0020] A triangular protrusion with a smaller upper end and a larger lower end is arranged in the middle of the inner wall of the gland in the vertical direction;

[0021] The triangular protrusion is movably clamped into the vertical groove.

[0022] Further preferably: The number of the first balls is at least four.

[0023] Further preferably: The number of the second balls is at least three.

[0024] Further preferably: A buffer washer is arranged between the sphere and the shaft rod.

[0025] Further preferably: The rocker arm is a straight rocker arm.

[0026] Further preferably: The height of the triangular protrusion is 1-2 cm.

[0027] The utility model has positive effects: The structure of the utility model is reasonably arranged. By setting a swing control motor and a rocker arm, the fan motor and the shaft rod can be made to rotate in a conical shape, so as to realize the swing blowing of the fan blades on the shaft rod, which is beneficial to increasing the blowing range. Moreover, a plurality of first balls are arranged at the connection between the rocker arm and the shaft rod, that is, the rocker arm is in contact connection with the shaft rod through the first balls. When the shaft rod rotates relative to the vertical shaft hole of the swing member, rolling connection is carried out through the first balls, so that the friction between the shaft rod and the swing member can be reduced, and the overall service stability and service life can be improved. It has strong applicability and good practicability;

[0028] Moreover, there is a sphere on the shaft rod, and the sphere is located in the through hole of the outer shell. The sphere contacts the inner wall of the through hole through the second ball. When the shaft rod rotates conically with the bead as the fulcrum, the sphere rotates on the inner wall of the through hole through the second ball, which can reduce the contact friction between the sphere and the outer shell, thus facilitating the improvement of the use stability and service life of the sphere and the outer shell, with strong applicability and good practicability. Brief Description of the Drawings

[0029] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to specific embodiments in conjunction with the drawings, where:

[0030] Figure 1 is a schematic structural view of the present utility model;

[0031] Figure 2 is an internal structural view of the present utility model with the outer shell removed;

[0032] Figure 3 is a split structural view of the present utility model;

[0033] Figure 4 is a structural view of the rocker arm member and the first ball of the present utility model;

[0034] Figure 5 is a structural view of the sphere and the second ball of the present utility model.

[0035] Reference numerals: motor bracket 1, fan motor 2, shaft rod 3, mounting seat 4, swing control motor 5, rocker arm member 6, convex shaft 7, vertical shaft hole 8, inclined mounting hole 9, C-shaped slot hole 10, first ball 11, outer shell 12, through hole 13, sphere 14, concave hole 15, second ball 16, gland 17, vertical groove 18, triangular protrusion 19, buffer washer 20. Detailed Description of the Embodiments

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0037] See Figures 1 to 5As shown in the figure, a structure of a shaking head fan includes a motor frame 1, a fan motor 2 located inside the motor frame, and a shaft rod 3 fixed on the main shaft of the fan motor. An installation base 4 is arranged above the motor frame, and a shaking head control motor 5 is fixed in the middle of the installation base. In this embodiment, the motor frame is a conventional structure of the prior art, which is formed by fixing a support plate and a cover frame with screws. Its convex shaft is located at the center of the top surface of the cover frame, which facilitates the installation and positioning of the fan motor and also facilitates the connection operation with the shaking head control motor.

[0038] In the actual application process, a rocker arm member 6 is arranged between the installation base and the top surface of the motor frame. A convex shaft 7 is fixed in the middle of the top surface of the motor frame. In this embodiment, the rocker arm member is a straight rocker arm. It can be a metal structure body, a plastic structure body, or other conventional connection structure bodies. Its main function is to connect the shaking head control motor with the motor frame. To ensure the effectiveness of the shaking head, one end of the rocker arm member is provided with a vertical shaft hole 8, and the other end of the rocker arm structure is fixed with an inclined mounting hole 9. The extension lines of the vertical shaft hole and the inclined mounting hole form a V shape. In the actual application process, the included angle between the inclined mounting hole and the vertical shaft hole is 20 - 45 degrees. And, in the actual application process, the inclined mounting hole is an oval hole or a square hole, the bottom end of the main shaft of the shaking head control motor is oval or square. When the shaking head control motor rotates, it can drive the rocker arm member to rotate. The vertical shaft hole is a circular hole. During use, the convex shaft can rotate in the vertical shaft hole. Since the shaking head control motor is fixed on the installation base during installation and the vertical shaft of the shaking head control motor is in a vertical state, the fan motor will be in an inclined state. Therefore, the fan motor makes a conical rotation under the action of the rocker arm member.

[0039] In the actual application process, several C-shaped groove holes 10 are arranged at the bottom of the inner wall of the vertical shaft hole, and first balls 11 are arranged in the C-shaped groove holes. The inner edge of the first balls extends into the vertical shaft hole. In the actual application process, the number of the first balls is at least four. During assembly, the convex shaft is arranged in the vertical shaft hole, and the inner edge of the first balls abuts against the surface of the convex shaft. The main shaft of the shaking head control motor is clamped in the inclined mounting hole. The shaking head control motor rotates and drives the motor frame to make a conical rotation through the rocker arm member. By contacting the shaft rod through the first balls, the first balls can be driven to rotate when the shaft rod rotates, which can reduce the contact friction between the convex shaft and the vertical shaft hole, ensure the smooth rotation of the convex shaft, and is also beneficial to improving the service life and has strong practicability.

[0040] In the actual application process, the bottom surface of the mounting base is fixed with a housing 12 by screws, and a through hole 13 is provided at the center of the housing; a sphere 14 is sleeved on the shaft rod, and a concave hole 15 is provided at the lower part of the outer wall of the sphere; a second ball 16 is provided in the concave hole; in this embodiment, the number of the second balls is at least three. During assembly, the lower part of the sphere is arranged in the through hole, and the lower surface of the second ball abuts against the inner wall of the through hole; the fan motor drives the shaft rod to rotate in a conical shape with the sphere as the center point. Through the second ball, the sphere can roll through the second ball when rotating in the through hole, which can reduce the friction of the sphere, not only improve the rotation smoothness, but also be beneficial to improving the service life and use stability.

[0041] In the actual application process, in order to facilitate the limit of the sphere, a gland 17 is fixed on the top surface of the housing by screws; the sphere is located between the housing and the gland. The gland is a technical common sense structure of the prior art and is only simply applied. In the actual application process, at least one vertical groove 18 is provided on the outer wall of the sphere; a triangular protrusion 19 with a smaller upper end and a larger lower end is provided at the vertical middle part of the inner wall of the gland; in this embodiment, the height of the triangular protrusion is 1-2 cm, and the height and width of the triangular protrusion are smaller than the middle depth and width of the vertical groove, and the triangular protrusion is movably clamped into the vertical groove. In the actual application process, since the vertical groove is on the outer wall of the sphere, the middle depth of the vertical groove is greater than the depths at both ends. When the shaft rod rotates in a conical shape, the state of the sphere in the gland will change. When the sphere tilts towards the triangular protrusion, at this time the triangular protrusion disengages from the upper part of the vertical groove, and at this time the triangular protrusion does not affect the rotation of the sphere. When the sphere tilts towards the side away from the triangular protrusion, at this time the triangular protrusion is clamped into the middle of the vertical groove for limiting. In this embodiment, the number of the vertical grooves is three.

[0042] And in the actual application process, a buffer washer 20 is provided between the sphere and the shaft rod.

[0043] The utility model has positive effects: The structure of the utility model is reasonably arranged. By setting a swing control motor and a swing arm member, the fan motor and the shaft rod can be made to rotate in a conical shape, so as to realize the swinging blowing of the fan blade on the shaft rod, which is beneficial to increasing the blowing range. Moreover, a plurality of first balls are provided at the connection between the swing arm member and the shaft rod, that is, the swing arm member is in contact connection with the shaft rod through the first balls. When the shaft rod rotates relative to the vertical shaft hole of the swing member, rolling connection is carried out through the first balls, so that the friction between the shaft rod and the swing member can be reduced, and the overall use stability and service life can be improved. It has strong applicability and good practicability;

[0044] Moreover, there is a sphere on the shaft rod, and the sphere is located in the through hole of the outer shell. The sphere contacts the inner wall of the through hole through the second ball. Thus, when the shaft rod rotates in a conical shape with the bead as the fulcrum, the sphere rotates on the inner wall of the through hole through the second ball, which can reduce the contact friction between the sphere and the outer shell, thereby facilitating the improvement of the use stability and service life of the sphere and the outer shell, with strong applicability and good practicability.

[0045] The standard parts used in this embodiment can be directly purchased from the market. For the non-standard structural components described in the specification, they can also be directly processed without any doubt according to the existing technical common sense. At the same time, the connection methods of each component adopt the mature conventional means in the existing technology, and the machines, parts and equipment all adopt the conventional models in the existing technology. Therefore, no specific description will be made here.

[0046] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. And these obvious changes or modifications derived from the essential spirit of the present invention still fall within the protection scope of the present invention.

Claims

1. An oscillating fan structure, comprising a motor frame, a fan motor in the motor frame and a shaft fixed on the main shaft of the fan motor, characterized in that: A mounting seat is arranged above the motor frame, and a shaking head control motor is fixed in the middle of the mounting seat; A rocker arm is provided between the mounting seat and the top surface of the motor frame; A convex shaft is fixed in the middle of the top surface of the motor frame; A vertical shaft hole is provided at one end of the rocker arm member, and an inclined mounting hole is fixed at the other end of the rocker arm structure, and the extension line of the vertical shaft hole and the inclined mounting hole is V-shaped; A plurality of C-shaped slots are provided at the bottom of the inner wall of the vertical shaft hole, a first ball is provided in the C-shaped slot, and the inner edge of the first ball extends into the vertical shaft hole; The convex shaft is arranged in the vertical shaft hole, and the inner edge of the first ball is in contact with the surface of the convex shaft; The main shaft of the shaking control motor is positioned in the inclined mounting hole; The shaking head controls the rotation of the motor and causes the motor frame to rotate in a conical shape through the rocker arm.

2. The oscillating fan structure according to claim 1, characterized in that: The bottom surface of the mounting seat is fixed with a shell by screws, and the center of the shell is provided with a through hole; A spherical body is sleeved on the shaft, and a concave hole is arranged at the lower part of the outer wall of the spherical body; A second ball is arranged in the concave hole; The lower part of the spherical body is arranged in the through hole, and the lower surface of the second rolling ball is in contact with the inner wall of the through hole; The fan motor drives the shaft to rotate in a conical shape with the sphere as the center point.

3. The oscillating fan structure according to claim 2, characterized in that: A gland is fixed to the top surface of the housing by screws; The ball is located between the housing and the gland.

4. The oscillating fan structure according to claim 3, characterized in that: At least one vertical groove is provided on the outer wall of the sphere; A triangular protrusion with a small upper end and a large lower end is provided in the vertical middle of the inner wall of the gland; The triangular protrusion is movably inserted into the vertical groove.

5. The oscillating fan structure according to claim 1, characterized in that: The number of the first balls is at least four.

6. The oscillating fan structure according to claim 2, characterized in that: The number of the second balls is at least three.

7. The oscillating fan structure according to claim 2, characterized in that: A buffer washer is arranged between the sphere and the shaft rod.

8. The oscillating fan structure according to claim 1, characterized in that: The rocker arm member is a straight rocker arm.

9. The oscillating fan structure according to claim 4, characterized in that: The height of the triangular protrusion is 1-2 cm.

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