Fan structure

Abstract

The embodiment of the utility model provides a fan structure. The fan structure comprises a base structure; one end of the first supporting rod is connected to the base structure; the second supporting rod is rotationally connected with the first supporting rod, the second supporting rod rotates around the first axis, and the relative positions of the second supporting rod relative to the first supporting rod at least comprise a first position and a second position; the fan head structure is connected with one end of the second supporting rod; part of the second supporting rod and part of the first supporting rod are overlapped in the direction of the first axis, under the condition that the second supporting rod rotates to the first position, the height, relative to the base structure, of the fan head structure is the first height, and under the condition that the second supporting rod rotates to the second position, the height, relative to the base structure, of the fan head structure is the second height. The first height is different from the second height. According to the technical scheme, a larger adjusting range can be provided through the first supporting rod and the second supporting rod.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, and more specifically, to a fan structure. Background Technology

[0002] Currently, the height of floor fans is usually related to the height of the stand and cannot be adjusted. However, user scenarios change, leading to different height requirements, which makes the product unable to meet user needs. Related technologies use sliding lifting devices to raise and lower the fan head, but in actual use, electric sliding lifting devices have slow movement speeds and long state switching times, while manual sliding lifting devices have high asynchrony during use and are prone to deviation, reducing the user experience. Utility Model Content

[0003] The present invention aims to at least solve the technical problem that existing fan head lifting devices in the prior art or related technologies cannot meet user needs.

[0004] In view of this, an embodiment of the present invention provides a fan structure.

[0005] To achieve the above objectives, embodiments of this utility model provide a fan structure, including: a base structure; a first support rod, one end of which is connected to the base structure; a second support rod, rotatably connected to the first support rod and rotating about a first axis, the relative position of the second support rod relative to the first support rod including at least a first position and a second position; and a fan head structure connected to one end of the second support rod; wherein, a portion of the second support rod and a portion of the first support rod overlap in the direction of the first axis, and when the second support rod rotates to the first position, the height of the fan head structure relative to the base structure is a first height, and when the second support rod rotates to the second position, the height of the fan head structure relative to the base structure is a second height, the first height and the second height being different.

[0006] The fan structure proposed in this utility model includes a base structure, a fan head structure, and a first and a second support rod located between the two and capable of rotating relative to each other. The base structure is an integral base, the fan head structure is mainly used for air delivery, the first support rod is fixedly connected to the base structure, and the second support rod is connected to the fan head structure. During rotation, the first support rod and the base structure are fixed, while the second support rod can drive the fan head structure to rotate relative to the first support rod in a manner similar to revolution, thereby adjusting the height of the fan head structure relative to the base structure.

[0007] Specifically, the rotatable connection between the second and first support rods is key to height adjustment. By rotating the second support rod, the fan head can be adjusted between two different heights. With a simple rotation, users can adjust the fan head from the first height to the second height, or vice versa. This design simplifies the fan height adjustment process and provides a more flexible user experience.

[0008] The base structure connects to the first support rod, providing stable support for the fan. This ensures the fan remains stable when the height is adjusted, preventing tilting or wobbling.

[0009] By adjusting the height of the fan structure, users can choose the appropriate height according to their actual needs, thus adapting to different spaces and usage scenarios. Higher heights are suitable for environments requiring greater airflow coverage, such as large rooms and office spaces. Lower heights are suitable for locations requiring localized airflow, desktop use, or low-ceiling spaces.

[0010] It is important to emphasize that this design, in the direction of the rotation axis (i.e., the direction of the first axis), by setting the first and second support rods one after the other—meaning that some of the second and first support rods overlap and some do not—and slightly offset them, reduces the size of the first and second support rods in the direction extending from the first axis, typically by their front-to-back dimensions, making the support rods thinner and lighter. Because the support rods move on different planes, the fan is less prone to tilting or losing balance during adjustment. Furthermore, the relative positions of the support rods can be adjusted more flexibly, helping to avoid interference between them, ensuring smooth operation when adjusting the height, providing a wider adjustment range and a more stable structure. The fan height can be adjusted simply by rotating the second support rod, making it easy to operate and adjust without requiring complicated tools or procedures.

[0011] In some technical solutions, optionally, one end of the first support rod is provided with a first rotating part, and one end of the second support rod is provided with a second rotating part, the second rotating part rotating relative to the first axis; wherein, the first axis is not parallel to the height direction of the fan structure.

[0012] In this technical solution, the rotation between the first support rod and the second support rod is achieved through a first rotating part and a second rotating part. Specifically, the first rotating part is located at one end of the first support rod, and the second rotating part is located at one end of the second support rod. By rotating, the second support rod can rotate relative to the first support rod around the first axis.

[0013] Furthermore, by restricting the first axis from being parallel to the height direction of the fan, the rotation trajectory of the second support rod has a certain degree of inclination. During rotation, the fan head structure has a large range of motion and can rotate within a certain range, making the overall structure of the fan more flexible in space.

[0014] In some technical solutions, optionally, one of the first rotating part and the second rotating part is a rotating protrusion and the other is a rotating ring, with the rotating ring sleeved outside the rotating protrusion; wherein, in the first direction, at least a portion of the rotating ring overlaps with the rotating protrusion.

[0015] In this technical solution, the specific structural forms of the first rotating part and the second rotating part are restricted, that is, they are limited to being realized by a rotating protrusion and a rotating ring. The design of the rotating protrusion and the rotating ring ensures the smooth connection between the two parts during rotation by realizing an outer sleeve structure (i.e., the rotating ring is sleeved outside the rotating protrusion).

[0016] Meanwhile, by limiting the positional relationship of the partial overlap between the rotating ring and the rotating protrusion in the first direction, the rotating ring is fitted onto the rotating protrusion, and the overall rotating assembly has a dimensional overlap in the first direction, thereby reducing the overall size in the first direction.

[0017] When operating the fan, users can easily rotate it and adjust its height using the structure of the rotating protrusion and rotating ring. Because the rotating ring is designed to fit over the rotating protrusion, users can more intuitively control the fan's adjustment angle, thus improving ease of use.

[0018] In some technical solutions, optionally, the rotating protrusion is provided with a first through hole extending along the first axis, and the fan structure includes: a limiting cover, including a cover body and a first protrusion extending from the cover body along the first axis, the first protrusion being adapted to the first through hole; wherein, in the cross-section of the first axis, the projection of the cover body covers the projection of the rotating ring.

[0019] In this technical solution, the rotating protrusion is provided with a first through hole extending along the first axis. This through hole allows the limiting cover to precisely engage with it during rotation, ensuring smooth rotation.

[0020] The limiting cover includes a cover body and a first protrusion extending from the cover body, the first protrusion being adapted to a first through hole of the rotating protrusion. The main function of the limiting cover is to provide a limiting structure to prevent the rotating protrusion from exceeding a predetermined range, avoiding excessive or insufficient rotation angle, and maintaining the accuracy of fan height adjustment.

[0021] Furthermore, on the cross-section of the first axis, the projection of the limiting cover will cover the projection of the rotating ring. That is, the size of the cover is larger and the size of the rotating ring is smaller. Through the size relationship between the two, a certain limiting effect can be achieved in the axial direction to prevent the possibility of separation during rotation.

[0022] Optionally, some technical solutions may also include: a second through hole, disposed on the first protrusion along the first axis; wherein the first through hole and the second through hole are connected to pass through along the first axis.

[0023] In this technical solution, by setting a second through hole on the first protrusion, the weight of the first protrusion is reduced, the amount of material used is reduced, and the weight of the fan is also optimized, making the fan lighter and easier to use and move in daily life.

[0024] Furthermore, when the fan is adjusted to a low operating height, the second through hole serves as a handle, providing a convenient gripping point for users to move the fan. At this low height, the fan's center of gravity is lower and its structure is more compact, allowing users to easily move the fan by simply grasping this well-designed handle.

[0025] It is important to emphasize that by ensuring that the first and second through holes are connected, a complete through-hole is formed, which facilitates gripping during handheld operation and improves the user experience.

[0026] In some technical solutions, the system may optionally include: a first limiting part disposed on the first rotating part; and a second limiting part disposed on the second rotating part; wherein the rotation angle range of the second support rod relative to the first support rod is limited by the cooperation of the first limiting part and the second limiting part.

[0027] In this technical solution, by providing a first limiting part and a second limiting part on the first rotating part and the second rotating part respectively, the rotation range between the second support rod and the first support rod can be limited. It can be understood that through the cooperation of the first limiting part and the second limiting part, the rotation angle of the fan support rod is limited to a specific range. When the user adjusts the fan height, the support rod will not continue to rotate beyond the predetermined angle, ensuring the stability and safety of the fan during use.

[0028] It is understandable that without a limiting structure, the second support rod might over-rotate due to improper operation, leading to structural damage or unsafe use. The cooperation between the first and second limiting parts prevents this risk, ensuring that the fan support rod can only rotate within a limited angle range, thus avoiding safety hazards caused by excessive rotation.

[0029] In some technical solutions, optionally, in the height direction, the maximum distance between the fan head structure and the first axis is less than the minimum distance between the base structure and the first axis.

[0030] In this technical solution, the maximum distance between the fan head structure and the first axis in the height direction is less than the minimum distance between the base structure and the first axis, so that the fan head structure will not exceed a certain range, avoiding the situation where the fan head structure is overextended during use. For example, if the fan head structure is too long, it may collide with the ground or the base structure when rotating downwards, and cannot rotate completely.

[0031] In some technical solutions, optionally, a locking element is also included, disposed on the first support rod and / or the second support rod, the locking element being used to restrict the relative rotation between the second support rod and the first support rod.

[0032] In this technical solution, by providing a locking element on at least one of the first and second support rods, the relative rotation between the second and first support rods can be restricted. During the use of the fan, the relative position of the second and first support rods is kept fixed, preventing unnecessary rotation or loosening, thereby improving the stability of the fan's operation.

[0033] In some technical solutions, optionally, the first support rod extends along the height direction, and within the range of movement of the second support rod relative to the first support rod, the first height is the largest and the second height is the smallest; and / or the difference between the angle corresponding to the first position and the angle corresponding to the second position is 180°.

[0034] In this technical solution, by defining the extension direction of the first support rod and the relationship between the first and second heights—that is, as the first support rod extends along the height direction, the first height is the largest and the second height is the smallest within the range of movement of the second support rod relative to the first support rod—the fan can be adjusted from the maximum height (first height) to the minimum height (second height) within the adjustment range of the second support rod as the first support rod extends along the height direction. This design provides flexible height adjustment options, allowing users to adjust the fan height according to different needs.

[0035] Furthermore, the second support rod can rotate around a certain axis (usually the longitudinal axis of the fan). The angular difference between the first and second positions is 180°, indicating that the second support rod can rotate 180 degrees, thereby achieving a significant change in fan height. This means that the second support rod can rotate 180 degrees between its two ends, achieving the purpose of height adjustment.

[0036] Optionally, some technical solutions may also include: a wire channel, located between the first support rod and the second support rod, the wire channel being used to accommodate the wire; wherein one end of the wire is connected to the fan head structure, and the wire is led outward from the first support rod through the wire channel and the second support rod.

[0037] By setting a cable tray between the first and second support rods, a fixed space is provided to accommodate the wires inside the fan, preventing them from being exposed to the outside or tangled on rotating parts, thus ensuring the fan's cleanliness and safe use.

[0038] Especially when the wire needs to be connected to the fan head structure, the wire can be guided from the fan head structure through the wire channel formed between the first and second support rods to the base structure. This prevents the wire from being pulled or rubbed during adjustment. The wire channel provides a fixed space to prevent the wire from getting tangled in the rotating parts due to rotation, thus preventing the wire from being pulled off or damaged.

[0039] Additional aspects and advantages of this invention will become apparent in the description that follows, or may be learned by practice of this invention. Attached Figure Description

[0040] Figure 1 A schematic diagram of the structure of a fan structure according to an embodiment of the present invention is shown, corresponding to the second support rod rotating to the first position.

[0041] Figure 2 A schematic diagram of the structure of a fan structure according to an embodiment of the present invention is shown, corresponding to the second support rod rotating to the second position.

[0042] Figure 3 An exploded structural diagram of a fan structure according to an embodiment of the present invention is shown;

[0043] Figure 4 A schematic diagram of the structure of the first rotating part and the second rotating part according to an embodiment of the present invention is shown.

[0044] in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0045] 100: Fan structure; 102: Base structure; 104: First support rod; 1042: First rotating part; 106: Second support rod; 1062: Second rotating part; 108: Fan head structure; 1102: Rotating protrusion; 1103: First through hole; 1104: Rotating ring; 112: Limiting cover; 1122: Cover body; 1124: First protrusion; 114: Second through hole; 1162: First limiting part; 1164: Second limiting part; 118: Locking element; 120: Cable guide groove; 1222: First outer shell; 1224: Second outer shell. Detailed Implementation

[0046] To better understand the above-mentioned objectives, features, and advantages of the embodiments of this utility model, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0047] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, embodiments of the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0048] The following reference Figures 1 to 4 Some embodiments according to the present invention are described.

[0049] like Figure 1 and Figure 3 As shown, this embodiment provides a fan structure 100, including a base structure 102, a fan head structure 108, and a first support rod 104 and a second support rod 106 located between the two and rotatable relative to each other. The base structure 102 is an integral base, the fan head structure 108 is mainly used for air delivery, the first support rod 104 is fixedly connected to the base structure 102, and the second support rod 106 is connected to the fan head structure 108. During rotation, the first support rod 104 and the base structure 102 are fixed, while the second support rod 106 can drive the fan head structure 108 to rotate relative to the first support rod 104 in a manner similar to revolution, thereby adjusting the height of the fan head structure 108 relative to the base structure 102.

[0050] Specifically, the rotatable connection between the second support rod 106 and the first support rod 104 is key to height adjustment. By rotating the second support rod 106, the fan head can be adjusted between two different heights. With a simple rotation, the user can adjust the fan head from one height to the other. Figure 1 The first height adjustment shown is as follows: Figure 2 The second height shown, or vice versa. This design simplifies the fan height adjustment process and provides a more flexible user experience.

[0051] The base structure 102 is connected to the first support rod 104, providing stable support for the fan. This ensures that the fan remains stable when the height is adjusted, preventing tilting or wobbling.

[0052] By adjusting the height of the fan structure 100, users can select a suitable height according to their actual needs, thus adapting to different spaces and usage scenarios. A higher height is suitable for environments requiring greater airflow coverage, such as large rooms and office spaces. A lower height is suitable for locations requiring localized airflow, desktop use, or low-ceiling spaces.

[0053] It is important to emphasize that in this design, in the direction of the rotation axis, i.e., the direction of the first axis, by setting the first support rod 104 and the second support rod 106 one after the other—that is, by having overlapping and non-overlapping parts of the second support rod 106 and the first support rod 104, and slightly offsetting them—the size of the first and second support rods in the first direction can be reduced, generally by the front-to-back dimension, making the support rods thinner and lighter. Because the support rods move on different planes, the fan is less likely to tilt or lose balance during adjustment. Furthermore, the relative position between the support rods can be adjusted more flexibly, helping to avoid interference between them, ensuring smooth operation when adjusting the height, providing a larger adjustment range and a more stable structure. The fan height can be adjusted by rotating the second support rod 106, which is easy to operate and adjust, requiring no complicated tools or procedures.

[0054] In some embodiments, the rotation between the first support rod 104 and the second support rod 106 is optionally achieved by the first rotating part 1042 and the second rotating part 1062. Specifically, the first rotating part 1042 is provided at one end of the first support rod 104, and the second rotating part 1062 is provided at one end of the second support rod 106. By rotating, the second support rod 106 can rotate relative to the first support rod 104 about a first axis.

[0055] Furthermore, by restricting the first axis from being parallel to the height direction of the fan, the rotation trajectory of the second support rod 106 has a certain degree of inclination. During the rotation, the fan head structure 108 has a large range of motion and rotates within a certain range, making the overall structure of the fan more flexible in space.

[0056] Furthermore, the first axis is perpendicular to the height direction, and the rotating surface of the fan head structure 108 is a vertical plane, which has a wide range of height variation, making it easier to meet the air supply needs of different locations.

[0057] It is understandable that when the second support rod 106 rotates around the first axis, the rotation introduces a certain angular change because the two are not parallel. This allows the fan to adjust not only its height but also its angle or direction on the horizontal plane during adjustment. This change brings greater flexibility and can potentially adapt to more usage scenarios, such as places where a specific airflow direction is required.

[0058] Furthermore, since the first axis is not parallel to the height direction of the fan, the rotating parts may form an oblique angle during rotation, improving the fan's stability and durability. This design reduces pressure concentration in the direct vertical direction, contributing to the stable support of the strut.

[0059] In some embodiments, the specific structural forms of the first rotating part 1042 and the second rotating part 1062 are optionally restricted, that is, the two are limited to being realized by the rotating protrusion 1102 and the rotating ring 1104. The design of the rotating protrusion 1102 and the rotating ring 1104 ensures the smooth connection between the two components during rotation by realizing the outer sleeve structure (that is, the rotating ring 1104 is sleeved on the outside of the rotating protrusion 1102).

[0060] Meanwhile, by limiting the positional relationship of the partial overlap between the rotating ring and the rotating protrusion in the first direction, the rotating ring is fitted onto the rotating protrusion, and the overall rotating assembly has a dimensional overlap in the first direction, thereby reducing the overall size in the first direction.

[0061] Furthermore, such as Figure 3 and Figure 4 As shown, a first outer shell 1222 is provided on the outer side of the first rotating part 1042, and a second outer shell 1224 is provided on the outer side of the second rotating part 1062.

[0062] When operating the fan, users can easily rotate it and adjust its height using the structure of the rotating protrusion 1102 and the rotating ring 1104. Since the rotating ring 1104 is designed to fit over the rotating protrusion 1102, users can more intuitively control the fan's adjustment angle, thus improving ease of use.

[0063] Furthermore, the combination of the rotating ring 1104 and the rotating protrusion 1102 incorporates a certain angle limiting structure to ensure that the angle during rotation does not exceed a preset range. Consequently, the fan height adjustment will not result in excessive tilting or instability, ensuring that the fan is always in a usable and safe position.

[0064] Furthermore, by combining the rotating protrusion 1102 with the rotating ring 1104, the fan's height adjustment function is optimized. This not only ensures smooth and stable rotation but also enhances the structure's durability. The cooperation between the rotating ring 1104 and the rotating protrusion 1102 makes height adjustment more flexible and precise, and more convenient for users. Overall, this design improves the fan's adjustability, user experience, and enhances its stability and durability during long-term use.

[0065] In some embodiments, optionally, such as Figure 3 As shown, the rotating protrusion 1102 is provided with a first through hole 1103 extending along the first axis. This through hole allows the limiting cover 112 to precisely engage with it during rotation, ensuring smooth rotation.

[0066] The limiting cover 112 includes a cover body 1122 and a first protrusion 1124 extending from the cover body 1122. The first protrusion 1124 is adapted to the first through hole 1103 of the rotating protrusion 1102. The main function of the limiting cover 112 is to provide a limiting structure to prevent the rotating protrusion 1102 from exceeding a predetermined range, avoid excessive or insufficient rotation angle, and maintain the accuracy of fan height adjustment.

[0067] Furthermore, on the cross-section of the first axis, the projection of the cover 1122 of the limiting cover 112 will cover the projection of the rotating ring 1104. That is, the size of the cover 1122 is larger and the size of the rotating ring 1104 is smaller. Through the size relationship between the two, a certain limiting effect can be achieved in the axial direction to prevent the possibility of separation during rotation.

[0068] In some embodiments, a second through hole 114 may be provided on the first protrusion 1124, which reduces the weight of the first protrusion 1124, reduces the amount of material used, and also optimizes the weight of the fan, making the fan lighter and easier to use and move in daily life.

[0069] It is important to emphasize that by ensuring that the first and second through holes are connected, a complete through-hole is formed, which facilitates gripping during handheld operation and improves the user experience.

[0070] Furthermore, when the fan is adjusted to a low operating height, the second through hole 114 serves as a handle, providing a convenient gripping point for the user to move the fan. At the low height, the fan's center of gravity is low and its structure is compact, allowing the user to easily move the fan by directly grasping this well-designed handle.

[0071] In some embodiments, optionally, such as Figure 4 As shown, a first limiting part 1162 and a second limiting part 1164 are respectively provided on the first rotating part 1042 and the second rotating part 1062, which can limit the rotation range between the second support rod 106 and the first support rod 104. It can be understood that through the cooperation of the first limiting part 1162 and the second limiting part 1164, the rotation angle of the fan support rod is limited to a specific range. When the user adjusts the fan height, the support rod will not continue to rotate beyond the predetermined angle, ensuring the stability and safety of the fan during use.

[0072] It is understandable that without a limiting structure, the second support rod 106 might rotate excessively due to improper operation, leading to structural damage or unsafe use. The cooperation of the first limiting part 1162 and the second limiting part 1164 prevents this risk, ensuring that the fan support rod can only rotate within a limited angle range, thereby avoiding safety hazards caused by excessive rotation.

[0073] Furthermore, the limit design helps users quickly determine the fan's adjustment range, avoiding unnecessary adjustments due to uncertainty about the rotation angle. Users can clearly perceive each "pause" in rotation during adjustment, improving operational precision.

[0074] In some embodiments, optionally, in the height direction, the maximum distance between the fan head structure 108 and the first axis is less than the minimum distance between the base structure 102 and the first axis, so that the fan head structure 108 will not exceed a certain range, avoiding the situation where the fan head structure 108 is overextended during use. For example, if the fan head structure 108 is too long, it may collide with the ground or the base structure 102 when rotating downwards, and cannot rotate completely.

[0075] Furthermore, by ensuring that the maximum distance between the fan head structure 108 and the first axis is less than the minimum distance between the base structure 102 and the first axis, the design limits the excessive extension of the fan in the height direction during rotation. This effectively prevents the excessive extension of the fan head from causing the fan to lose balance when adjusting the height, thereby enhancing the overall stability of the fan.

[0076] If the fan head is too far from the primary axis, it may cause instability in the center of gravity during fan operation, thus affecting the fan's stability and safety. By controlling this maximum distance, this situation can be effectively avoided, ensuring that the fan head is always kept within a reasonable range.

[0077] By ensuring that the maximum distance between the fan head and the first axis is less than the minimum distance between the base structure 102 and the first axis, potential physical conflicts with other components (such as the support rod, base, rotating structure, etc.) are avoided. This helps ensure that the fan does not interfere with or get damaged when rotating, raising, lowering, or adjusting.

[0078] In some embodiments, a locking member 118 may be provided on at least one of the first support rod 104 and the second support rod 106 to restrict the relative rotation between the second support rod 106 and the first support rod 104. During the use of the fan, this ensures that the relative position of the second support rod 106 and the first support rod 104 remains fixed, preventing unnecessary rotation or loosening, thereby improving the stability of the fan during use.

[0079] When the fan is in use, especially when adjusting the height, relative rotation may occur between the second support rod 106 and the first support rod 104. Without the locking element 118, the fan height may be unstable during use, or even the adjustment may be inaccurate. With the cooperation of the locking element 118, this unnecessary relative rotation can be effectively limited, ensuring that the two support rods remain in a fixed position after adjustment.

[0080] In some embodiments, the extension direction of the first support rod 104 and the relationship between the first height and the second height are optionally defined. That is, as the first support rod 104 extends along the height direction, the first height is at its maximum and the second height is at its minimum within the range of movement of the second support rod 106 relative to the first support rod 104. Within the adjustment range of the second support rod 106 as the first support rod 104 extends along the height direction, the fan can be adjusted from the maximum height (first height) to the minimum height (second height). This design provides flexible height adjustment options, allowing users to adjust the fan height according to different needs.

[0081] The first height setting, with the second support rod 106 fully extended and the fan at its highest position, is suitable for scenarios requiring high airflow coverage. The second height setting, with the second support rod 106 fully retracted and the fan at its lowest position, is ideal for use in confined spaces or on a desktop, saving space while maintaining functionality.

[0082] Furthermore, the second support rod 106 can rotate around a certain axis (usually the longitudinal axis of the fan), and the angular difference between the first and second positions is 180°. This indicates that the second support rod 106 can rotate 180 degrees, thereby achieving a significant change in the fan height. This means that the second support rod 106 can rotate 180 degrees between its two ends, achieving the purpose of height adjustment.

[0083] A wire channel 120 is provided between the first and second support rods to accommodate the wires inside the fan, providing a fixed space for the wires and preventing them from being exposed to the outside or tangled on the rotating parts, thus ensuring the cleanliness and safe use of the fan.

[0084] Especially when the wire needs to be connected to the fan head structure 108, the wire can be introduced from the fan head structure through the wire channel formed between the first and second support rods to the base structure 102 via the wire channel 120, preventing the wire from being pulled or rubbed during adjustment. The wire channel 120 provides a fixed space to prevent the wire from getting tangled in the rotating parts due to rotation, thus preventing the wire from being pulled off or damaged.

[0085] Furthermore, the 120mm cable tray keeps the wires neatly arranged in the design, avoiding the messy look caused by exposed wires. The fan looks cleaner and tidier, which not only enhances its aesthetics but also makes it more convenient for users in daily use.

[0086] The cable tray 120 is designed to be located between the first rotating part 1042 and the second rotating part 1062, ensuring that the power cord will not interfere with the smooth operation of the fan when the bracket rotates or the height is adjusted. This means that the fan can rotate and rise and fall freely without worrying about the power cord rubbing or getting stuck.

[0087] By accommodating the wires, the cable tray 120 ensures that the wires are not subjected to tension or twisting when adjusting the height or angle of the fan, thus avoiding damage or inconvenience caused by wire pulling.

[0088] Furthermore, the cable tray 120 secures the wires within a safe area, reducing contact between the wires and external objects and increasing safety during use. Overly bent wires can easily cause safety issues; the cable tray 120 design ensures the wires maintain a reasonable degree of bending during adjustments, reducing the risk of wire aging or breakage.

[0089] In one specific embodiment, an adjustable height support rod rotating structure is provided. The support rod is divided into an upper rod (i.e., the second support rod 106) and a lower rod (i.e., the first support rod 104), which are connected by a rotating structure (i.e., the first rotating part 1042 and the second rotating part 1062). Rotating the upper rod can adjust the height of the fan to two usage states.

[0090] The fan support rod consists of two parts, an upper rod and a lower rod, which are staggered. The upper rod is a movable part, and the lower rod is a fixed part. The fan head can be adjusted to a lower height by rotating 180 degrees around the pivot structure in the middle of the upper and lower rods.

[0091] The rotating component consists of a front cover / rotation shaft (i.e., the limiting cover 112), an upper rod support (i.e., the second support rod 106) and an upper rod housing (i.e., the second housing 1224), a lower rod support (i.e., the first support rod 104) and a lower rod housing (i.e., the first housing 1222). The front cover and the lower rod housing are fixed together front and rear, serving as the rotation support shaft. The upper and lower rods are the main support components, and an internal rotation angle limiting structure is designed to ensure adjustable vertical angle. The fan support rod structure allows for height adjustment; rotating the upper rod adjusts the height of the fan head during use.

[0092] Furthermore, the hollow design in the middle of the rotating part (i.e., the second through hole 114) can be used as a handle when used at a low height, making it convenient for the fan to move.

[0093] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0094] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., 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 utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0095] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0096] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fan structure, characterized in that, include: Base structure; A first support rod, one end of which is connected to the base structure; The second support rod is rotatably connected to the first support rod, and the second support rod rotates about the first axis. The relative position of the second support rod with respect to the first support rod includes at least a first position and a second position. The fan-shaped structure is connected to one end of the second support rod; In this configuration, a portion of the second support rod and a portion of the first support rod do not overlap in the direction of the first axis, while a portion of the second support rod and a portion of the first support rod overlap in the direction of the first axis. When the second support rod is rotated to the first position, the height of the fan head structure relative to the base structure is a first height, and when the second support rod is rotated to the second position, the height of the fan head structure relative to the base structure is a second height. The first height and the second height are different.

2. The fan structure according to claim 1, characterized in that, One end of the first support rod is provided with a first rotating part, and one end of the second support rod is provided with a second rotating part, which rotates relative to the first axis. The first axis is not parallel to the height direction of the fan structure.

3. The fan structure according to claim 2, characterized in that, One of the first rotating part and the second rotating part is a rotating protrusion, and the other is a rotating ring, with the rotating ring sleeved over the rotating protrusion; In the direction of the first axis, at least a portion of the rotating ring overlaps with the rotating protrusion.

4. The fan structure according to claim 3, characterized in that, The rotating protrusion is provided with a first through hole extending along the first axis, and the fan structure includes: A limiting cover includes a cover body and a first protrusion extending from the cover body along the first axis, the first protrusion being adapted to the first through hole; In the cross-section of the first axis, the projection of the cover overlaps the projection of the rotating ring.

5. The fan structure according to claim 4, characterized in that, Also includes: A second through hole is provided on the first protrusion along the first axis; The first through hole and the second through hole are connected to pass through along the first axis.

6. The fan structure according to claim 2, characterized in that, Also includes: A first limiting part is provided on the first rotating part; The second limiting part is provided on the second rotating part; The rotation angle range of the second support rod relative to the first support rod is limited by the cooperation of the first limiting part and the second limiting part.

7. The fan structure according to claim 2, characterized in that, In the height direction, the maximum distance between the fan head structure and the first axis is less than the minimum distance between the base structure and the first axis.

8. The fan structure according to any one of claims 1 to 7, characterized in that, Also includes: A locking element is provided on the first support rod and / or the second support rod, the locking element being used to restrict relative rotation between the second support rod and the first support rod.

9. The fan structure according to any one of claims 1 to 7, characterized in that, The first support rod extends along the height direction, and within the range of movement of the second support rod relative to the first support rod, the first height is the greatest and the second height is the smallest; and / or The difference between the angle corresponding to the first position and the angle corresponding to the second position is 180°.

10. The fan structure according to any one of claims 1 to 7, characterized in that, Also includes: A wire channel is provided between the first support rod and the second support rod, and the wire channel is used to accommodate wires; One end of the wire is connected to the fan head structure, and the wire is led outward from the first support rod through the wire groove and the second support rod.

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