A fan head up-and-down rotating device of a circulating fan

Abstract

The utility model relates to a fan head up and down rotating device of circulating fan. Including fan head, rotating component and support, the fan head is rotatable connection in the support through rotating component, rotating component includes motor, fixed base and rotating seat, the fixed base is detachably connected on the fan head, the rotating seat is detachably connected on the support, and the motor sets up on the fixed base, and the gear on the motor output end is engaged with the rack in the rotating seat and does the meshed connection. The utility model discloses the form of motor drive, makes the fan head on the rotating seat and carries out up and down rotation, and the effect of realizing the blowing circulation is engaged in.

Description

Technical Field

[0001] This utility model relates to a device for rotating the fan head up and down in a circulating fan. Background Technology

[0002] An air circulator fan is somewhat like a turbine engine on an airplane. Its main structure includes a drive motor, a turbine fan, a baffle grille, and a cylindrical casing. Unlike ordinary fans, air circulator fans can blow air out in a spiral shape in a specific direction. As the fan blades churn, they ultimately create a spiral column of air. The air circulator fan can blow air over a longer distance and has good directionality.

[0003] Most circulating fans currently operate by rotating left and right along their axis. However, the purpose of a circulating fan is to create air convection. It needs to rotate up, down, left, and right to create proper indoor convection. But current designs rarely have a structure that allows the fan head to rotate up and down. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a fan head rotation device for a circulating fan. The fan head rotates up and down on the rotating base by means of a motor drive, thereby achieving the effect of air circulation.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A fan head rotating device for a circulating fan includes a fan head, a rotating assembly, and a bracket. The fan head is rotatably connected to the bracket via the rotating assembly. The rotating assembly includes a motor, a fixed base, and a rotating base. The fixed base is detachably connected to the fan head, and the rotating base is detachably connected to the bracket. The motor is mounted on the fixed base, and a gear on the output end of the motor meshes with a rack inside the rotating base.

[0006] The fan head has a receiving groove, the motor is fitted into the receiving groove, the fixed seat cover is closed on the motor and connected to the fan head by screws, the output end of the motor passes through the through hole on the fixed seat and extends out of the fixed seat; the fixed seat has a rotating column, the rotating column cooperates with the rotating hole on the rotating seat; the fixed seat has two sets of limiting columns with the rotating column as the rotation center, and the rotating seat has a movable column, the movable column is located between the two sets of limiting columns.

[0007] The fan head rotating device of the circulating fan with this structure has a Y-shaped support. The rotating component is located at one of the two sets of forks at the top of the support. One end of the fan head is rotatably connected to one set of forks of the support through the rotating component, and the other end of the fan head is connected to the other set of forks of the support through a bearing or other rotatable structure. Therefore, when the support is placed on the ground or fixed, the fan can rotate up and down around the two sets of forks as the rotation center.

[0008] To enable the fan head to rotate on its own under drive, a receiving slot for the motor is provided inside the fan head. The shape of the receiving slot is consistent with that of the motor, so the motor will not rotate on its own after being inserted. At the same time, the upper end cover of the motor closes the fixing seat, and the fixing seat is screwed to the fan head around its perimeter to fix the fixing seat in place. The rotating seat is also connected to the fork at the top of the bracket by screws. In order to enable the output end of the motor protruding through the through hole to drive the fan head to rotate, a gear is connected to the output end of the motor. An arc-shaped rack with the rotating seat as the center of rotation is set inside the rotating seat. Therefore, during the assembly process, after the rotating column on the fixing seat is inserted into the rotating hole, the gear simultaneously engages with the rack and forms a meshing relationship. Therefore, when the motor is started, it can drive the gear to move on the rack, thereby driving the fan head to rotate.

[0009] To limit the fan's rotation angle, two sets of limiting posts are installed on the fixed base. These two sets of limiting posts are distributed in a circle on the fixed base, while the movable post on the rotating base is located between the two sets of limiting posts. As the fan head rotates, the limiting posts will continuously approach the movable post until they come into contact with it and are stopped, thereby reversing the driving force of the motor and causing the fan head to rotate in the opposite direction. The other set of limiting posts will continuously approach the movable post until they come into contact with it and then change direction again, thus achieving continuous up-and-down reciprocating rotation and better forming air convection.

[0010] Furthermore, it also includes a fan cover and a bracket cover, wherein the fan cover covers the rotating seat and the fixed seat and is detachably connected to the fan head; the bracket cover is detachably connected to the bracket.

[0011] Compared with the prior art, the advantages of this utility model are as follows: the fan head is clamped at the upper fork of the bracket, and a rotating component is set at one end. The motor drives the gear to move on the rack, thereby driving the fan head to rotate. The two sets of limiting posts and the movable post located in between are arranged so that during the rotation of the fan head, the limiting posts will continuously approach the movable post until they come into contact with it and are limited, thereby reversing the driving force of the motor and causing the fan head to rotate in the opposite direction. The other set of limiting posts will continuously approach the movable post until they come into contact with it and then change direction again, thereby realizing continuous up and down reciprocating rotation and better forming air convection. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a front-view exploded view of the present invention; Figure 3 For the present utility model Figure 2 Enlarged view of a portion at point A; Figure 4 This is a rear-view explosion diagram of the present invention; Figure 5 For the present utility model Figure 4 A magnified view of part B.

[0014] The components are as follows: 1. Fan head; 11. Receiving groove; 2. Rotating assembly; 21. Motor; 211. Gear; 22. Fixing base; 221. Through hole; 222. Rotating column; 223. Limiting column; 23. Rotating seat; 231. Rack; 232. Rotating hole; 233. Movable column; 3. Bracket; 4. Fan cover; 5. Bracket cover. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] The specific embodiments of this utility model will now be described with reference to the accompanying drawings: like Figure 1-5 As shown, a fan head rotating device for a circulating fan includes a fan head 1, a rotating assembly 2, and a bracket 3. The fan head 1 is rotatably connected to the bracket 3 via the rotating assembly 2. The rotating assembly 2 includes a motor 21, a fixed base 22, and a rotating base 23. The fixed base 22 is detachably connected to the fan head 1, and the rotating base 23 is detachably connected to the bracket 3. The motor 21 is mounted on the fixed base 22, and the gear 211 on the output end of the motor 21 meshes with the rack 231 inside the rotating base 23.

[0017] The fan head 1 has a receiving groove 11, the motor 21 is fitted into the receiving groove 11, the fixing seat 22 covers the motor 21 and is connected to the fan head 1 by screws, the output end of the motor 21 passes through the through hole 221 on the fixing seat 22 and extends out of the fixing seat 22; the fixing seat 22 has a rotating column 222, the rotating column 222 cooperates with the rotating hole 232 on the rotating seat 23; the fixing seat 22 has two sets of limiting columns 223 with the rotating column 222 as the rotation center, and the rotating seat 23 has a movable column 233, the movable column 233 is located between the two sets of limiting columns 223.

[0018] Furthermore, it also includes a fan cover 4 and a bracket cover 3. The fan cover 4 covers the rotating seat 23 and the fixed seat 22 and is detachably connected to the fan head 1; the bracket cover 3 is detachably connected to the bracket 3.

[0019] Description of the working principle of this utility model: The fan head rotating device of the circulating fan with this structure has a Y-shaped support 3. The rotating component 2 is set at one of the two sets of forks at the top of the support 3. One end of the fan head 1 is rotatably connected to one set of forks of the support 3 through the rotating component 2, and the other end of the fan head 1 is connected to the other set of forks of the support 3 through a bearing or other rotatable structure. Therefore, when the support 3 is placed on the ground or fixed, the fan can rotate up and down with the two sets of forks as the rotation center.

[0020] To enable the fan head 1 to rotate on its own under drive, a receiving slot 11 for the motor 21 is provided inside the fan head 1. The shape of the receiving slot 11 is consistent with that of the motor 21, so the motor 21 will not rotate on its own after being inserted. Meanwhile, the upper end cover of the motor 21 closes the fixing seat 22, and the fixing seat 22 is screwed onto the fan head 1 around its perimeter, thus fixing the fixing seat 22 in place. The rotating seat 23 is also connected to the fork at the top of the bracket 3 by screws. To enable the output end of the motor 21 extending out of the through hole 221 to drive the fan head 1 to rotate, a gear 211 is connected to the output end of the motor 21. An arc-shaped rack 231 with the rotating seat 23 as the center of rotation is set in the rotating seat 23. Therefore, during the assembly process, after the rotating column 222 on the fixed seat 22 is inserted into the rotating hole 232, the gear 211 is simultaneously embedded in the rack 231 and forms a meshing relationship with each other. Therefore, when the motor 21 is started, the gear 211 can be driven to move on the rack 231, thereby driving the fan head 1 to rotate.

[0021] To limit the fan's rotation angle, two sets of limiting posts 223 are set on the fixed base 22. The two sets of limiting posts 223 are circumferentially distributed on the fixed base 22, while the movable post 233 on the rotating base 23 is located between the two sets of limiting posts 223. During the rotation of the fan head 1, the limiting post 223 will continuously approach the movable post 233 until it comes into contact with it and is limited, thereby reversing the driving force of the motor 21 and causing the fan head 1 to rotate in the opposite direction. The other set of limiting posts 223 will continuously approach the movable post 233 until it comes into contact with it and then changes direction again, thereby realizing continuous up-and-down reciprocating rotation and better forming air convection.

[0022] The fan cover 4 can cover the rotating seat 23 and the fixed seat 22 inside the fan head 1, preventing them from being exposed and preventing dust from entering. It can also play a certain role in limiting and fixing. The bracket 3 on the bracket 3 covers a set of bifurcations, which serves both aesthetic and dustproof purposes.

[0023] The beneficial effects of this utility model are as follows: By clamping the fan head 1 at the upper fork of the bracket 3, and setting a rotating component 2 at one end, the fan head 1 is driven by the motor 21 to make the gear 211 move on the rack 231, thereby driving the fan head 1 to rotate. During the rotation of the fan head 1, the two sets of limiting posts 223 and the movable post 233 located between them will continuously approach the movable post 233 until they come into contact with each other and are limited, thereby reversing the driving force of the motor 21 and making the fan head 1 rotate in the opposite direction. The other set of limiting posts 223 will continuously approach the movable post 233 until they come into contact with each other and then change direction again, thereby realizing continuous up and down reciprocating rotation and better forming air convection.

[0024] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for rotating the fan head of a circulating fan, characterized in that: The device includes a fan head, a rotating assembly, and a bracket. The fan head is rotatably connected to the bracket via the rotating assembly. The rotating assembly includes a motor, a fixed base, and a rotating base. The fixed base is detachably connected to the fan head, and the rotating base is detachably connected to the bracket. The motor is mounted on the fixed base, and the gear on the output end of the motor meshes with a rack inside the rotating base.

2. The fan head rotating device of the circulating fan according to claim 1, characterized in that: The fan head has a receiving groove, the motor is fitted into the receiving groove, the mounting base is closed on the motor and connected to the fan head by screws, and the output end of the motor passes through the through hole on the mounting base and extends out of the mounting base.

3. The fan head rotating device of the circulating fan according to claim 2, characterized in that: The fixed base is provided with a rotating column, which cooperates with the rotating hole on the rotating base.

4. The fan head rotating device of the circulating fan according to claim 3, characterized in that: The fixed base is provided with two sets of limiting columns with the rotating column as the center of rotation, and the rotating base is provided with a movable column, which is located between the two sets of limiting columns.

5. The fan head rotating device of the circulating fan according to claim 4, characterized in that: It also includes a fan cover, which covers the rotating seat and the fixed seat and is detachably connected to the fan head.

6. The fan head rotating device of the circulating fan according to claim 5, characterized in that: It also includes a bracket cover, which is detachably attached to the bracket.

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