An adjustable yawing structure for a fan

Abstract

The utility model relates to fan technology field, especially a kind of adjustable swing head structure for fan, including support, head component being equipped at support top and being installed with fan blade, and rotating shaft being equipped between head component and support, the two sides of head component are equipped with one installation slot with the open mouth towards support relative rotating shaft, the bottom of installation slot is equipped with fixed groove, and the end of fixed groove towards rotating shaft is equipped with swing head structure;The other end of the rotating shaft of the inner surface of support towards rotating shaft is equipped with guide slot, the guide slot is equipped with plastic steel ball with spring, and the end of rotating shaft is equipped with multiple clamping grooves relative plastic steel ball array along the rotation direction of rotating shaft.The utility model aims at making fan can quickly and stably swing up and down, and can directly adjust fan elevation angle according to requirement.

Description

Technical Field

[0001] This utility model relates to the field of electric fan technology, and in particular to an adjustable oscillation head structure for a fan. Background Technology

[0002] Fans have brought convenience to people's daily lives. Their widespread use and popularity stem from their safety, convenience, and ease of maintenance. Traditional fans, to oscillate up and down, use a stepper motor that drives gears, which in turn rotate a shaft. These stepper motors are typically low-voltage DC and require a power board to drive them. This design is inconvenient and costly.

[0003] At the same time, when the fan swings up and down, it sometimes takes time to swing to the height we need, which cannot quickly meet our needs. Also, when the fan is in use, whether it is accidentally bumped or the angle of the swing is adjusted in a hurry, the gears of the swing motor can easily slip and be damaged, which will cause the swing to fail. Utility Model Content

[0004] The main purpose of this invention is to provide an adjustable oscillation structure for a fan, which enables the fan to swing up and down quickly and stably, and allows the fan tilt angle to be adjusted directly according to needs.

[0005] To achieve the above objectives, this utility model proposes an adjustable oscillating head structure for a fan, including a bracket, a head assembly with fan blades mounted on the top of the bracket, and a rotating shaft between the head assembly and the bracket. The head assembly has a mounting groove with an opening facing the bracket on both sides opposite the rotating shaft. The bottom of the mounting groove has a fixing groove, and the end of the fixing groove facing the rotating shaft has an oscillating head structure.

[0006] The bracket has a guide groove at the other end facing the rotating shaft. The guide groove contains a plastic steel ball with a spring. The end of the rotating shaft has multiple slots relative to the plastic steel ball array along the rotation direction of the rotating shaft.

[0007] In one embodiment of this application, the rotating shaft includes a first rotating portion passing through the mounting groove and a second rotating portion connected to the first rotating portion and passing through the bracket, wherein the bracket is located between the first rotating portion and the second rotating portion.

[0008] In one embodiment of this application, the end of the second rotating part is provided with a mounting cavity facing the guide groove along the rotation direction of the rotating shaft, and a pitching iron plate is provided in the mounting cavity. The pitching iron plate is provided with multiple slots facing the guide groove array.

[0009] In one embodiment of this application, the oscillating head structure includes a synchronous motor disposed in a fixed slot, a crank connected to the synchronous motor, and an oscillating rod connected to the crank, wherein the end of the oscillating rod away from the crank is connected to a first rotating part.

[0010] In one embodiment of this application, a connecting portion is provided at the end of the first rotating part facing the synchronous motor, and the connecting portion protrudes from the outer periphery of the first rotating part.

[0011] In one embodiment of this application, the synchronous motor is driven by a connector, and the outer periphery of the connector facing away from the synchronous motor has a connecting end protruding toward the shaft, and the crank is connected to the connecting end.

[0012] In one embodiment of this application, the mounting groove is provided with a plurality of mounting posts, the plurality of mounting posts are wrapped around the fixing groove, and the mounting posts are provided with bushings passing through the opening of the mounting groove, and the rotating shaft passes through the bushings.

[0013] In one embodiment of this application, a cover is provided at the opening of the mounting groove. One side of the cover is wrapped around the bushing, and the other side is wrapped around the end of the bracket. The rotating shaft passes through the cover.

[0014] By adopting the above technical solution, this utility model has the following advantages:

[0015] The overall structure of the fan includes a head assembly for mounting the fan blades and a bracket for mounting the head assembly. The head assembly and the bracket do not need to be directly connected; they are connected by a pivot. Both sides of the head assembly have a mounting slot facing the pivot. The bottom of the mounting slot has a fixing slot for mounting the oscillating head structure. The oscillating head structure is connected to one end of the pivot, and the other end of the pivot is located inside the bracket and locked by the internal structure of the bracket. When the oscillating head structure is working, the pivot will rotate clockwise or counterclockwise. However, because the pivot is locked, it cannot rotate. Therefore, under the action of the reaction force, the head assembly will swing up and down under the drive of the oscillating head structure, ensuring the stability of the entire process.

[0016] The bracket has a guide groove facing the rotating shaft, and a spring is installed in the guide groove. A plastic steel ball is located at the end of the spring. The rotating shaft itself is movable to the bracket, and the rotating shaft can rotate within the bracket. The rotating shaft has multiple evenly spaced slots along its rotation direction, and the plastic steel ball is engaged in one of the slots. When the user needs to manually operate the fan's tilt angle, it can be adjusted by driving the head assembly. Because the other end of the rotating shaft is connected to the oscillating head structure, this end is locked in principle, which can be regarded as the rotating shaft being fixed to the head assembly. When the user rotates the head assembly, the rotating shaft will rotate within the bracket, and the plastic steel ball will not change direction under the action of the spring and the guide groove. When the user adjusts to the appropriate angle, the plastic steel ball will be engaged in the slot on the rotating shaft under the action of the spring, thus fixing it. The above structure is relatively simple and highly integrated, which can effectively reduce costs. Moreover, users can easily manually adjust the fan's tilt angle with this structure, which can effectively improve the user experience. Attached Figure Description

[0017] 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 the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the adjustable oscillation head structure for a fan according to the present invention;

[0019] Figure 2 This is a cross-sectional view of the adjustable oscillation head structure for a fan according to the present invention;

[0020] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0021] Figure 4 This is an exploded view of the adjustable oscillation head structure for a fan according to this utility model.

[0022] Explanation of icon numbers:

[0023] 1. Bracket; 11. Guide groove; 12. Plastic steel ball; 2. Head assembly; 21. Mounting groove; 22. Mounting column; 23. Fixing groove; 3. Swing head structure; 31. Synchronous motor; 32. Connector; 33. Crank; 34. Swing rod; 4. Shaft; 41. First rotating part; 42. Connecting part; 43. Second rotating part; 44. Mounting cavity; 45. Pitch plate; 5. Bushing; 6. Protective cover.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0026] The following is in conjunction with the appendix Figures 1 to 4 The present invention will be further described below.

[0027] To achieve the above objectives, this utility model proposes an adjustable oscillating head structure 3 for a fan, including a bracket 1, a head assembly 2 with fan blades mounted on the top of the bracket 1, and a rotating shaft 4 between the head assembly 2 and the bracket 1. The head assembly 2 has a mounting groove 21 with an opening facing the bracket 1 on both sides opposite the rotating shaft 4. The bottom of the mounting groove 21 is provided with a fixing groove 23, and the end of the fixing groove 23 facing the rotating shaft 4 is provided with an oscillating head structure 3.

[0028] The bracket 1 has a guide groove 11 at the other end facing the rotating shaft 4. The guide groove 11 contains a plastic steel ball 12 with a spring. The end of the rotating shaft 4 has multiple slots arranged in the array of plastic steel balls 12 along the rotation direction of the rotating shaft 4.

[0029] The overall structure of the fan includes a head assembly 2 for mounting the fan blades and a bracket 1 for mounting the head assembly 2. The head assembly 2 and the bracket 1 do not need to be directly connected. They are connected by a rotating shaft 4. Both sides of the head assembly 2 have a mounting groove 21 facing the rotating shaft 4. The bottom of the mounting groove 21 has a fixing groove 23 for mounting the oscillating head structure 3. The oscillating head structure 3 is connected to one end of the rotating shaft 4. The other end of the rotating shaft 4 is inside the bracket 1 and locked by the internal structure of the bracket 1. When the oscillating head structure 3 is working, the rotating shaft 4 will rotate clockwise or counterclockwise. However, because the rotating shaft 4 is locked, it cannot rotate. Therefore, under the action of the reaction force, the head assembly 2 will swing up and down under the drive of the oscillating head structure 3 to ensure the stability of the whole process.

[0030] The bracket 1 has a guide groove 11 facing the rotating shaft 4. A spring is installed in the guide groove 11, and a plastic steel ball 12 is installed at the end of the spring. The rotating shaft 4 itself is movable with respect to the bracket 1, and the rotating shaft 4 can rotate within the bracket 1. The rotating shaft 4 has multiple slots evenly spaced along its rotation direction, and the plastic steel ball 12 is engaged in one of the slots. When the user needs to manually operate the fan's tilt angle, it can be adjusted by driving the head assembly 2. Because the other end of the rotating shaft 4 is connected to the oscillating head structure 3, this end is locked in principle. The rotating shaft 4 can be considered as being fixed on the head assembly 2. When the user rotates the head assembly 2, the rotating shaft 4 will rotate within the bracket 1, while the plastic steel ball 12 will remain oriented under the action of the spring and the guide groove 11. When the user adjusts to the appropriate angle, the plastic steel ball 12 will be engaged in the slot on the rotating shaft 4 under the action of the spring, thus playing a fixing role. The above structure is relatively simple and the entire structure is highly integrated, which can effectively reduce costs. In addition, users can easily manually adjust the tilt angle of the fan under this structure, which can effectively improve the user experience.

[0031] Preferably, the rotating shaft 4 includes a first rotating part 41 that passes through the mounting groove 21 and a second rotating part 43 that is connected to the first rotating part 41 and passes through the bracket 1, with the bracket 1 located between the first rotating part 41 and the second rotating part 43.

[0032] The rotating shaft 4 includes a first rotating part 41 and a second rotating part 43. Since the bracket 1 is located between the first rotating part 41 and the second rotating part 43, it can be used to fix the rotating shaft 4. The rotating shaft 4 adopts a split structure, which can simplify the design and ensure the stability of the function.

[0033] Preferably, the end of the second rotating part 43 is provided with a mounting cavity 44 facing the guide groove 11 along the rotation direction of the rotating shaft 4. The mounting cavity 44 is provided with a pitching iron plate 45, and the pitching iron plate 45 is provided with multiple slots arranged facing the guide groove 11.

[0034] When the rotating shaft 4 is held in place by the structure of the plastic steel ball 12 and the spring, the slot is more prone to wear. Therefore, in this application, the slot is opened on the pitch plate 45, and the pitch plate 45 is installed in the mounting cavity 44 of the second rotating part 43, so that the pitch plate 45 can be easily replaced, which can effectively reduce maintenance costs.

[0035] Preferably, the oscillating head structure 3 includes a synchronous motor 31 disposed in the fixed groove 23, a crank 33 connected to the synchronous motor 31, and an oscillating rod 34 connected to the crank 33, with one end of the oscillating rod 34 away from the crank 33 connected to the first rotating part 41.

[0036] The fan's shaft 4 is located within the mounting slot 21. Fixing the shaft 4 via the mounting slot 21 allows the fan to rotate relative to the shaft 4, ensuring a stable fan trajectory. A fixing slot 23 is provided in the mounting slot 21 facing the shaft 4. This fixing slot 23 allows the synchronous motor 31 of the oscillating head structure 3 to be stably installed, ensuring a stable working environment for the synchronous motor 31. The synchronous motor 31 is driven by a crank 33, which is connected to the swing arm 34 at a position away from the synchronous motor 31 and away from its connection point. The crank 33, via the crank, allows the oscillating head structure 3 to rotate. The moving rod 34 can be eccentrically connected to the synchronous motor 31, and the swing rod 34 itself is connected to the first rotating part 41 of the rotating shaft 4. In this structure, when the synchronous motor 31 rotates in a clockwise or counterclockwise direction, the rotating shaft 4 can move back and forth in a clockwise and counterclockwise direction under the action of the swing head structure 3. After the rotating shaft 4 is fixed, with the help of the reaction force, the head assembly 2 can swing back and forth and stably with the fan blades, which can make the whole process smoother and effectively reduce the noise generated during swinging, thus improving the user experience.

[0037] Preferably, the first rotating part 41 has a connecting part 42 at the end facing the synchronous motor 31, and the connecting part 42 protrudes from the outer periphery of the first rotating part 41.

[0038] A connecting part 42 is provided on the outer periphery of the first rotating part 41. The swing rod 34 is connected to the connecting part 42, which can increase the eccentric distance between the rotating shaft 4 and the swing head structure 3, and can improve the up-and-down swing amplitude of the fan.

[0039] Preferably, the synchronous motor 31 is driven by a connector 32, and the outer periphery of the connector 32 facing away from the synchronous motor 31 has a connecting end protruding towards the rotating shaft 4, and the crank 33 is connected to the connecting end.

[0040] The synchronous motor 31 is connected to the crank 33 through the connector 32 and the connecting end, which makes the crank 33 easy to install and ensures the stability of the structure. The connecting end is eccentrically set on the connector 32, which ensures that the head assembly 2 has a large up-and-down swing angle when the synchronous motor 31 rotates, thus improving the swing effect.

[0041] Preferably, the mounting groove 21 is provided with a plurality of mounting posts 22, which are wrapped around the fixing groove 23. The mounting posts 22 are provided with bushings 5 ​​that pass through the opening of the mounting groove 21, and the rotating shaft 4 passes through the bushings 5.

[0042] The mounting groove 21 is provided with a mounting post 22. The mounting post 22 wraps around the outer periphery of the fixing groove 23 so that after the bushing 5 is installed at the opening of the mounting groove 21, it can wrap around the swing head structure 3 to protect the swing head structure 3 and enable the rotating shaft 4 to be installed stably.

[0043] Preferably, a cover 6 is provided at the opening of the mounting groove 21. One side of the cover 6 is wrapped around the bushing 5, and the other side is wrapped around the end of the bracket 1. The rotating shaft 4 passes through the cover 6.

[0044] The cover 6 seals the opening of the mounting slot 21, which can protect the fan's oscillating structure 3 and further stabilize the bushing 5, ensuring the stability of the connection between the rotating shaft 4 and the head assembly 2.

[0045] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0046] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An adjustable oscillation head structure for a fan, characterized in that, The device includes a bracket, a head assembly with fan blades mounted on top of the bracket, and a rotating shaft between the head assembly and the bracket. The head assembly has a mounting groove with an opening facing the bracket on both sides opposite the rotating shaft. The bottom of the mounting groove has a fixing groove, and the end of the fixing groove facing the rotating shaft has a swing head structure. The bracket has a guide groove at the other end facing the rotating shaft. The guide groove contains a plastic steel ball with a spring. The end of the rotating shaft has multiple slots relative to the plastic steel ball array along the rotation direction of the rotating shaft.

2. The adjustable oscillation head structure for a fan according to claim 1, characterized in that, The rotating shaft includes a first rotating part passing through the mounting groove and a second rotating part connected to the first rotating part and passing through the bracket, with the bracket located between the first rotating part and the second rotating part.

3. The adjustable oscillation head structure for a fan according to claim 2, characterized in that, The end of the second rotating part has a mounting cavity facing the guide groove along the rotation direction of the rotating shaft. The mounting cavity is provided with a pitching iron plate, and the pitching iron plate has multiple slots facing the guide groove array.

4. The adjustable oscillation head structure for a fan according to claim 2, characterized in that, The oscillating head structure includes a synchronous motor disposed in a fixed slot, a crank connected to the synchronous motor, and an oscillating rod connected to the crank, with the end of the oscillating rod away from the crank connected to a first rotating part.

5. The adjustable oscillation head structure for a fan according to claim 4, characterized in that, The first rotating part has a connecting part at the end facing the synchronous motor, and the connecting part protrudes from the outer periphery of the first rotating part.

6. The adjustable oscillation head structure for a fan according to claim 5, characterized in that, The synchronous motor is driven by a connector, and the outer periphery of the connector facing away from the synchronous motor has a connecting end protruding towards the shaft. The crank is connected to the connecting end.

7. The adjustable oscillation head structure for a fan according to claim 1, characterized in that, The mounting groove is provided with multiple mounting posts, which are wrapped around the fixing groove. Each mounting post is provided with a bushing that passes through the opening of the mounting groove, and the rotating shaft passes through the bushing.

8. An adjustable oscillation head structure for a fan according to claim 7, characterized in that, The opening of the mounting groove is provided with a protective cover. One side of the protective cover is wrapped around the bushing, and the other side is wrapped around the end of the bracket. The rotating shaft passes through the protective cover.

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