A portable fan

Abstract

The utility model relates to fan technical field more specifically, relate to a kind of portable fan, including fan main body and fixed structure, fan main body is connected with the fixed structure, fan main body includes fan head, pedestal and pitch adjusting structure, fan head is rotatably installed on pedestal by pitch adjusting structure, pitch adjusting structure includes connecting shaft and connecting arm, connecting shaft and connecting arm are rotatably connected, and the rotatably connected place of connecting shaft and connecting arm is equipped with rotary positioning assembly, pedestal is equipped with mounting position, pitch adjusting structure is located at mounting position, and connecting shaft and connecting arm are respectively fixedly arranged on fan head and pedestal or on pedestal and fan head. The utility model fan head is rotatably connected on the pedestal by pitch adjusting structure, so that the pitch position of fan head relative to pedestal can be adjusted, and then the blowing direction of fan head can be adjusted, to facilitate the use of user.

Description

Technical Field

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

[0002] Portable fans, also known as handheld fans, are small and lightweight, fulfilling the need for portability to a certain extent. Clip-on fans, in particular, can be both movable and fixed in place, making them suitable for various scenarios and especially popular.

[0003] Currently, most clamp-on fans on the market typically consist of a fan body and a fixing structure. The fixing structure is used to clamp the fan body onto other objects. When a clamp-on fan is used on other objects, since the height of the clamped object is usually fixed, if the pitch and air blowing angle of the fan body cannot be adjusted, the clamp-on fan often cannot meet the user's air blowing angle requirements, which greatly affects the user's experience. Utility Model Content

[0004] The purpose of this invention is to provide a portable fan that allows for easy adjustment of the tilt and airflow angle of the fan body.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a portable fan, including a fan body and a fixing structure, wherein the fan body is connected to the fixing structure, the fan body includes a fan head, a base and a pitch adjustment structure, the fan head is rotatably mounted on the base through the pitch adjustment structure, the pitch adjustment structure includes a connecting shaft and a connecting arm, the connecting shaft and the connecting arm are rotatably connected, a rotation positioning component is provided at the rotatable connection of the connecting shaft and the connecting arm, the base is provided with a mounting position, the pitch adjustment structure is located at the mounting position, and the connecting shaft and the connecting arm are respectively fixed on the fan head and the base or the base and the fan head.

[0006] Furthermore, the base is provided with two mounting positions, which are located on both sides of the end of the base. The connecting shaft is fixedly mounted on the outer wall of the base at the mounting position, and the connecting arm is fixedly mounted on the bottom of the fan head.

[0007] Furthermore, the connecting arm includes a main body and a connecting part. The connecting part is located at the top of the main body and is detachably connected to the bottom of the fan head. The main body is rotatably connected to the connecting shaft.

[0008] Furthermore, the bottom of the fan head is provided with at least two spaced-apart assembly blocks, the connecting part is detachably connected to the assembly blocks, an assembly groove is formed between two adjacent assembly blocks, and the connecting part is provided with a plug-in protrusion that can be plugged into the assembly groove.

[0009] Furthermore, one end of the connecting shaft is fixedly connected to the side wall of the base, and the other end is provided with a limiting member; the main body is provided with a connecting through hole for the connecting shaft to be inserted, and the end of the connecting through hole facing away from the base is provided with a limiting step; when the connecting arm is installed on the connecting shaft, the limiting member abuts against the limiting step.

[0010] Furthermore, the limiting member is detachably connected to the connecting shaft; the rotation positioning component is a friction plate, which is sleeved on the connecting shaft and limits the contact between the limiting member and the limiting step.

[0011] Furthermore, each mounting position has a mounting recess on the outer wall of the base, and the connecting shaft is coaxially mounted on the bottom wall of the mounting recess, with a certain distance between the outer wall of the connecting shaft and the side wall of the mounting recess.

[0012] Furthermore, the connecting arm also includes a sleeve portion, which is disposed on the main body portion; when the connecting arm is installed on the connecting shaft, the sleeve portion can be inserted into the gap between the outer wall of the connecting shaft and the side wall of the mounting recess.

[0013] Furthermore, a limiting block is provided on the outer wall of the sleeve portion, and an arc-shaped limiting groove is provided on the outer wall of the base portion, and the limiting groove is connected to the mounting recess. When the sleeve portion is inserted into the mounting recess, the limiting block is limited within the limiting groove.

[0014] Furthermore, the connecting arm has a detachable outer cover on the side facing away from the base.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The fan head of this invention is rotatably connected to the base via a pitch adjustment structure, allowing the pitch position of the fan head relative to the base to be adjusted, thereby adjusting the airflow direction of the fan head for user convenience. Furthermore, this invention utilizes the friction force of friction plates to achieve damped rotation of the fan head, and after rotation, it can be positioned and locked, thus achieving a stepless positioning and self-locking function for the fan head. This ensures the stability of the fan head's position after adjustment, thereby guaranteeing the airflow direction of the fan head and further enhancing the user experience. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the gripper structure in Embodiment 1 of this utility model;

[0018] Figure 2 This is a schematic diagram of the gripper structure from another angle in Embodiment 1 of this utility model;

[0019] Figure 3 This is a schematic diagram of the top of the gripper structure in Embodiment 1 of this utility model;

[0020] Figure 4 for Figure 3 Sectional view at point AA;

[0021] Figure 5 This is a schematic diagram of the internal structure of the fixing clamp in Embodiment 1 of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the movable clamping component in Embodiment 1 of this utility model;

[0023] Figure 7 This is a schematic diagram of the bottom structure of the cover portion in Embodiment 1 of this utility model;

[0024] Figure 8 This is a schematic diagram of the gripper structure in Embodiment 2 of this utility model;

[0025] Figure 9 This is a cross-sectional view of the gripper structure in Embodiment 2 of this utility model;

[0026] Figure 10 This is a cross-sectional view of the gripper structure in Embodiment 2 of this utility model from another angle;

[0027] Figure 11 This is a schematic diagram of the structure of the limiting member in Embodiment 2 of this utility model;

[0028] Figure 12 This is a schematic diagram of the structure of the movable clamping component in Embodiment 2 of this utility model;

[0029] Figure 13 This is a schematic diagram of the structure of the portable fan in Embodiment 1 of this utility model;

[0030] Figure 14 This is a schematic diagram of the portable fan clamped onto a rod-shaped object according to Embodiment 1 of this utility model;

[0031] Figure 15 This is a schematic diagram of the bottom structure of the base in Embodiment 1 of this utility model;

[0032] Figure 16 This is a schematic diagram of the assembly of the press buckle and the bottom cover in Embodiment 1 of this utility model;

[0033] Figure 17This is a cross-sectional view of the base of Embodiment 1 of this utility model;

[0034] Figure 18 This is a cross-sectional view of the assembly base in Embodiment 1 of this utility model;

[0035] Figure 19 This is a schematic diagram of the portable fan after adjusting the pitch angle in Embodiment 1 of this utility model;

[0036] Figure 20 This is an assembly diagram of the connecting shaft and the base in Embodiment 1 of this utility model;

[0037] Figure 21 This is a schematic diagram of the connecting arm in Embodiment 1 of this utility model;

[0038] Figure 22 This is a structural schematic diagram of the connecting arm from another angle in Embodiment 1 of this utility model;

[0039] Figure 23 This is a schematic diagram of the structure at the bottom of the fan head in Embodiment 1 of this utility model;

[0040] Figure 24 for Figure 23 Enlarged view of point A in the middle;

[0041] Figure 25 This is a cross-sectional view of the pitch adjustment structure in Embodiment 1 of this utility model;

[0042] Figure 26 This is a schematic diagram of the portable fan in Embodiment 3 of this utility model;

[0043] Figure 27 This is a schematic diagram of the assembly of the pitch adjustment structure and the fan body in Embodiment 3 of this utility model;

[0044] Figure 28 This is an assembly diagram of the connecting shaft and the base in Embodiment 3 of this utility model;

[0045] Figure 29 This is a cross-sectional view of the base and mounting bracket assembly in Embodiment 3 of this utility model. Detailed Implementation

[0046] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0047] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0048] Example 1

[0049] This embodiment is an example of a portable fan, including a fan body and a fixing structure. The fixing structure is used to fix the fan body to other objects for use. In this embodiment, the fixing structure is a clamping structure, which is used to clamp the fan body. That is, by installing the fan body on the clamping structure, the portable fan can be clamped to a desktop or a rod-shaped object for use. The rod-shaped object is such as the guardrail of a stroller or the guardrail of a bed, which makes the portable fan suitable for more application scenarios.

[0050] like Figure 1 As shown, the gripper structure in this embodiment includes a fixed gripper 11, a movable gripper 12, and an adjustment assembly 13. The movable gripper 12 is rotatably connected to the fixed gripper 11. When the movable gripper 12 rotates, the opening between the movable gripper 12 and the fixed gripper 11 can be adjusted, allowing the gripper structure to be clamped onto the object to be installed. The object can be a planar structure, such as a tabletop, or a rod-like structure, such as a stroller rail or a bed rail. It should be noted that the objects that can be installed with the gripper structure in this embodiment are merely illustrative examples and are not intended to limit the use of the gripper structure.

[0051] The adjusting component 13 is used to drive the movable clamping member 12 to rotate. The opening degree between the fixed clamping member 11 and the movable clamping member 12 can be adjusted by the adjusting component 13, so that the clamping structure can be firmly clamped on the object to be installed.

[0052] Specifically, in this embodiment, the adjusting component 13 includes a movable block 131 and a driving member 132. The driving member 132 is connected to the movable block 131 and is used to drive or move the movable block 131. The movable block 131 is movably engaged with the movable clamping member 12. Specifically, the movable clamping member 12 is provided with a slot 123, and the movable block 131 is movably engaged in the slot 123 of the movable clamping member 12. When the driving member 132 drives or moves the movable block 131, the movable block 131 can drive the movable clamping member 12 to rotate during the movement. When the driving member 132 drives or moves the movable block 131 in the opposite direction, the movable block 131 can drive the movable clamping member 12 to rotate in the opposite direction during the movement. When the movable clamping member 12 rotates, it can change the opening size between the fixed clamping member 11 and the movable clamping member 12.

[0053] As a preferred technical solution, such as Figure 4 and Figure 5 As shown, in this embodiment, the driving component 132 is rotatably connected to the fixed clamping component 11, and the driving component 132 is axially limited on the fixed clamping component 11. This means the driving component 132 cannot move along its axial direction. In this embodiment, the driving component 132 includes a screw portion 134 with an external thread. The moving block 131 has a threaded through hole and is sleeved on the screw portion 134. The moving block 131 is threadedly connected to the screw portion 134, and its circumferential rotation is limited on the screw portion 134, meaning the moving block 131 cannot follow the screw portion 134 in circumferential rotation.

[0054] When the screw part 134 is rotated, since the moving block 131 is threadedly connected to the screw part 134 and cannot rotate circumferentially with the screw part 134, the moving block 131 can move axially along the screw part 134. During the axial movement of the moving block 131 along the screw part 134, since the moving block 131 is engaged in the slot 123 of the movable clamping member 12, the moving block 131 can abut against the side wall of the slot 123 and thus rotate the movable clamping member 12, thereby achieving the purpose of adjusting the opening size of the movable clamping member 12 and the fixed clamping member 11.

[0055] In other embodiments, the drive unit 132 can be configured as an electric telescopic rod or other electric drive device, and the moving block 131 is connected to the output end of the drive unit 132, so that the moving block 131 can be moved directly by the drive unit 132.

[0056] In this embodiment, the fixing clamp 11 is configured as a split structure, such as... Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, in this embodiment, the fixing clamp 11 is set in an upper and lower split configuration. Specifically, it includes a body part 111 and a cover part 112. The body part 111 is provided with a mounting cavity 118. In this embodiment, the mounting cavity 118 is formed by the top of the body part 111 being recessed downwards, and the cover part 112 covers the top of the body part 111.

[0057] In this embodiment, the moving block 131 and the screw part 134 are both located in the mounting cavity 118. By placing the moving block 131 and the screw part 134 in the mounting cavity 118 of the main body part 111, and then covering the main body part 111 with the cover part 112, the adjustment component 13 can be hidden inside the fixed clamping member 11. This not only reduces the damage to the adjustment component 13 and improves the service life of the adjustment component 13, but also saves design space, making the overall structure of the gripper structure more compact, and also greatly improving the external aesthetics of the gripper structure.

[0058] like Figure 5 As shown, the main body 111 is also provided with a plurality of hollow cavities 117 at intervals. The hollow cavities 117 can reduce the overall weight of the gripper structure, making the gripper structure lighter and easier to carry.

[0059] In other embodiments, the fixing clamp 11 may also be a left and right split type, specifically including a two-half cavity docking structure, that is, it is formed by docking two half cavity docking structures. When the left and right half cavity docking structures are docked together, an installation cavity 118 can be formed inside the fixing clamp 11.

[0060] Specifically, such as Figure 4 and Figure 5 As shown, the drive component 132 also includes a limiting part 137 and a handle 138. The screw part 134 passes through the mounting cavity 118, and one end of the screw part 134 extends into the hollow cavity 117 adjacent to the mounting cavity 118. The limiting part 137 is connected to the end of the screw part 134 located in the hollow cavity 117. In this embodiment, the limiting part 137 is a nut, and the nut is threadedly connected to the end of the screw part 134.

[0061] A handle 138 is fixedly connected to the other end of the screw portion 134. The handle 138 is at least partially located on the outside of the body portion 111; in this embodiment, the entire handle 138 is located on the outside of the body portion 111. The handle 138 facilitates user operation, and rotating the handle 138 causes the screw portion 134 to rotate. In this embodiment, the screw portion 134 is axially limited on the fixed clamping member 11 by the limiting portion 137 and the handle 138.

[0062] As a preferred technical solution, in this embodiment, bearings 139 are provided between the limiting part 137 and the outer wall of the mounting cavity 118, and between the handle 138 and the outer wall of the mounting cavity 118. The provision of bearings 139 can improve the stability of the rotation of the drive component 132.

[0063] In this embodiment, the user rotates the handle 138 to drive the screw part 134 to rotate. In other embodiments, the screw part 134 can be directly driven by an electric drive device such as a motor or driven to rotate in conjunction with other transmission structures.

[0064] like Figure 5 As shown, in this embodiment, the main body 111 has a rectangular block structure, and two extension blocks 113 extend outward from the two opposite sidewalls of the main body 111. In this embodiment, the extension blocks 113 are semi-circular arc-shaped. As a preferred technical solution, in this embodiment, the two extension blocks 113 and the main body 111 are integrally formed.

[0065] In this embodiment, the shape of the cover portion 112 matches the shape of the main body portion 111 and the two extension blocks 113, and the cover portion 112 is detachably connected to the top of the main body portion 111. Specifically, the cover portion 112 is detachably connected to the main body portion 111 through one or more of the following methods: snap-fit, plug-in, threaded connection, screw connection, magnetic attraction, etc. The above-mentioned detachable connection methods are merely examples and are not intended to limit the present invention.

[0066] As a preferred technical solution, in this embodiment, the cover portion 112 is detachably and fixedly installed on the top of the body portion 111 using screws. To further facilitate convenient, quick, and accurate installation of the cover portion 112 onto the body portion 111, in this embodiment, the body portion 111 and the cover portion 112 achieve rapid positioning and docking through a positioning structure.

[0067] Specifically, in this embodiment, the positioning structure includes a first positioning groove 141 and a first positioning post 142, wherein the first positioning groove 141 is disposed on the extension block 113, such as... Figure 7 As shown, the first positioning post 142 is located at the bottom of the cover part 112. By positioning and inserting the first positioning post 142 and the first positioning groove 141, the cover part 112 can be quickly and accurately closed onto the body part 111.

[0068] As a preferred technical solution, in this embodiment, the screws used to connect the body portion 111 and the cover portion 112 are located at the positions of the first positioning groove 141 and the first positioning post 142. When the first positioning post 142 is inserted into the first positioning groove 141, a stable connection between the cover portion 112 and the body portion 111 is achieved by the screws.

[0069] like Figure 2As shown, the bottom of the main body 111 is provided with an assembly port 119, which is connected to the mounting cavity 118. A part of the movable clamping member 12 extends into the mounting cavity 118 through the assembly port 119 and engages with the moving block 131.

[0070] like Figure 2 and Figure 4 As shown, in this embodiment, the fixing clamp 11 further includes mounting ears 114, which are used for assembly connection with the movable clamp 12. In this embodiment, two mounting ears 114 are provided, which are respectively arranged opposite to each other on both sides of the bottom mounting opening 119 of the main body 111. As a preferred technical solution, in this embodiment, the mounting ears 114 and the main body 111 are integrally formed.

[0071] To facilitate the gripper structure's attachment to rod-shaped objects, such as stroller guardrails or crib rails, etc. Figure 1 and Figure 2 As shown, in this embodiment, the bottom of the main body 111 is also provided with a first arc-shaped recess 115. The arc-shaped surface of the first arc-shaped recess 115 can better fit with the surface of the rod-shaped object, thereby improving the clamping firmness of the fixing clamp 11 on the rod-shaped structure.

[0072] As a preferred technical solution, such as Figure 1 and Figure 2 As shown, in this embodiment, the main body 111 has an inclined surface 116 at the end of the gripper structure opening. The inclined surface 116 can serve as a guide, making it easy for the rod-shaped structure to enter the gripper structure opening along the inclined surface 116, thereby enabling the gripper structure 1 to be clamped onto the rod-shaped structure conveniently and quickly.

[0073] like Figure 6 As shown, in this embodiment, the movable clamping member 12 includes a clamping part 121 and an assembly part 122. The clamping part 121 is disposed opposite to the bottom of the main body part 111 and is used to clamp an object. In this embodiment, the clamping part 121 has a second arc-shaped recess 128 on the side facing the fixed clamping member 11. The arc-shaped surface of the second arc-shaped recess 128 can better fit with the surface of the rod-shaped object, thereby improving the clamping firmness of the movable clamping member 12 on the rod-shaped structure.

[0074] The assembly part 122 is rotatably connected to the two assembly ears 114 via a pivot 126. As a preferred embodiment, the pivot 126 is located at the end of the assembly part 122 near the clamping part 121.

[0075] One end of the assembly part 122 is fixedly connected to the clamping part 121, and the other end extends into the mounting cavity 118 through the assembly port 116 and engages with the moving block 131. As a preferred technical solution, in this embodiment, the assembly part 122 and the clamping part 121 are integrally formed. Of course, the assembly part 122 and the clamping part 121 can also be a detachable and separate structure.

[0076] like Figure 4 and Figure 6 As shown, the end of the assembly portion 122 of the movable clamping member 12 that extends into the mounting cavity 118 is provided with a slot 123. Specifically, the slot 123 can be directly formed on the end of the assembly portion 122, or it can be other structures with slots 123 fixedly formed on the end of the assembly portion 122. In the embodiment, the slot 123 is directly formed on the end of the assembly portion 122.

[0077] In this embodiment, the slot 123 is a U-shaped groove, and the moving block 131 has a columnar structure, with the moving block 131 engaging within the U-shaped groove. As a preferred technical solution, in this embodiment, the screw portion 134 is located at the middle position of the end of the assembly portion 122, and both opposite sidewalls of the U-shaped groove have notches 124 for the screw portion 134 to pass through. The structural arrangement of the slot 123 in this embodiment does not affect the axial movement of the moving block 131 along the screw portion 134, and during movement, the moving block 131 can actuate the end of the assembly portion 122, thereby driving the movable clamping member 12 to rotate, achieving the purpose of adjusting the opening size between the fixed clamping member 11 and the movable clamping member 12.

[0078] like Figure 4 and Figure 5 As shown, in this embodiment, the fixing clamp 11 is provided with a limiting member 133 for restricting the circumferential rotation of the moving block 131. Specifically, in this embodiment, the limiting member 133 is a limiting rail provided on the inner sidewall of the mounting cavity 118 and arranged axially along the screw portion 134. In this embodiment, two sets of limiting rails are provided, and the two sets of limiting rails are respectively located on two opposite inner sidewalls of the mounting cavity 118, and the two ends of the moving block 131 are respectively slidably limited within the two sets of limiting rails.

[0079] Specifically, in this embodiment, the limiting rail includes an upper rail 1331 and a lower rail 1332. The upper rail 1331 and the lower rail 1332 are arranged vertically on the inner sidewall of the mounting cavity 118, and there is a first gap 1333 between the upper rail 1331 and the lower rail 1332. The end of the moving block 131 is slidably located within the first gap 1333. The upper rail 1331 and the lower rail 1332 can not only restrict the rotation of the moving block 131, but also provide a sliding track for the moving block 131, so that the moving block 131 can move steadily along the axial direction of the screw part 134.

[0080] In this embodiment, one end of the upper rail 1331 is spaced from the side wall of the mounting cavity 118, which facilitates the assembly of the moving block 131 within the limiting rail. As a preferred technical solution, the upper limiting rail 1331 is provided with a guide angle 1334. The design of the guide angle 1334 is beneficial to improving the ease of assembly and efficiency of the moving block 131 and the limiting member 133.

[0081] When the slot 123 rotates with the movable clamping member 12 to be directly above the rotation center line of the movable clamping member 12, that is, when the slot 123 is directly above the rotating shaft 126, the bottom end of the moving block 131 abuts against or is spaced from the bottom of the slot 123. This arrangement allows the moving block 131 to move a large range on the screw part 134, thereby ensuring that the movable clamping member 12 has a large range of opening and closing.

[0082] To prevent the moving block 131 from dislodging from the slot 123 of the movable clamping member 12, the fixed clamping member 11 also needs to be provided with a limiting structure to restrict the axial displacement range of the moving block 131 or the rotation range of the movable clamping member 12. In this embodiment, the rotation range of the movable clamping member 12 is limited by designing the opening width of the assembly port 119 along the axial direction of the screw portion 134, which avoids the need for additional structures, reduces costs, and greatly improves the simplicity of the gripper structure design. Of course, in other embodiments, a limiting block can also be provided on the fixed clamping member 11 to limit the axial movement range of the moving block 131 or the rotation range of the movable clamping member 12.

[0083] Regardless of the type of limiting structure used to restrict the axial displacement range of the moving block 131 or the rotation range of the movable clamping member 12, it must be ensured that when the moving block 131 moves to the maximum or minimum displacement or the movable clamping member 12 rotates to the minimum or maximum angle, the moving block 131 cannot be completely dislodged from the slot 123.

[0084] As a preferred technical solution, such as Figure 2 As shown, in this embodiment, the bottom of the movable clamping member 12 is provided with a plurality of strip-shaped grooves 125 at intervals. The grooves 125 not only save materials and reduce costs, but also reduce the weight of the clamping structure itself.

[0085] This utility model adjusts the opening size between the movable clamping member 12 and the fixed clamping member 11 by cooperating with the movable block 131 and the screw part 134, which makes it easy for the claw structure to clamp objects of different sizes. Moreover, the fit between the various parts of the structure is stable, not easy to be damaged, and has a longer service life.

[0086] In use, rotate handle 138 to adjust the opening of the gripper structure. When the opening of the gripper structure is placed on the object to be installed, rotate handle 138 again to reduce the opening of the gripper structure, thus securing the gripper structure to the object. Since the moving block 131 and the screw part 134 are threadedly connected, the position of the moving block 131 can be locked when the screw part 134 is not rotating. That is, the opening size between the movable clamping member 12 and the fixed clamping member 11 can be locked, thereby ensuring that the gripper structure is firmly clamped on the corresponding object. The gripper structure is not easy to tilt or fall off, making it safer and more reliable to use.

[0087] like Figure 13 As shown, in this embodiment, the gripper structure is installed at the bottom of the fan body, as... Figure 14 This embodiment demonstrates the state in which the portable fan is clamped onto the rod-shaped object 101. The gripper structure enables the portable fan to be used in more application scenarios.

[0088] like Figure 13 As shown, in this embodiment, the fan body includes a fan head 3 and a base 2. The fan head 3 is located on top of the base 2 and is used for airflow cooling. Specifically, as shown... Figure 15 As shown, the fan head 3 includes a housing 31, a fan assembly, an air inlet housing 33, and an air outlet housing 34. The housing 31 is a cylindrical structure with openings at both ends. One end of the housing 31 is the air inlet end, and the other end is the air outlet end. The air inlet housing 33 is connected to the air inlet end of the housing 31. Several air inlet holes 331 are evenly distributed on the air inlet housing 33. The air outlet housing 34 is connected to the air outlet end of the housing 31.

[0089] As a preferred technical solution, the air inlet housing 33 in this embodiment is provided with a filter screen. The filter screen can improve the cleanliness of the air outlet and effectively prevent dust or particulate matter from harming the user.

[0090] The fan assembly is located inside the housing 31. Specifically, the fan assembly includes a motor assembly and fan blades. The motor assembly is installed on the side of the air outlet housing 34 facing the air inlet end of the housing 31. The motor assembly is used to drive the fan blades to rotate, and the fan blades are connected to the output shaft of the motor assembly.

[0091] In this embodiment, the base 2 has a hollow structure, and an electronic control component is installed inside the base 2. The electronic control component includes a rechargeable battery pack 73, a charging board, and a control circuit board, etc. The electronic control component is electrically connected to the fan assembly and is used to drive and control the operation of the fan assembly. A charging port 71 and a control button 72 are also provided on the side wall of the base 2 near the air outlet end of the outer shell 31. The control button 72 is electrically connected to the electronic control component and can control the start / stop and wind speed adjustment functions of the fan assembly through the electronic control component. The charging port 71 is electrically connected to the electronic control component and is used to charge the electronic control component. Through the setting of the electronic control component, the portable fan can realize the power storage function. After charging, no external power supply is required, which is convenient for users to use in different temporary locations and improves the user experience.

[0092] like Figure 15 and Figure 16 As shown, the base 2 in this embodiment includes a seat body 21 with a bottom opening and a bottom cover 22. The bottom cover 22 is detachably connected to the bottom of the seat body 21. In this embodiment, the bottom cover 22 and the seat body 21 are connected by screws. Figure 16 As shown, screw mounting positions 223 are provided at the four corners of the bottom cover 22. It should be noted that the screw fixing method is a preferred method to achieve a detachable connection between the base 21 and the bottom cover 22, and is not intended to limit the present invention.

[0093] In this embodiment, the fan head 3 is mounted on the top of the base 21. As a preferred technical solution, such as... Figure 17 and Figure 18 As shown, in this embodiment, the top of the base 21 is provided with a third arc-shaped recess 211. The third arc-shaped recess 211 is designed to match the shape of the outer shell 31 of the fan head 3, so that the outer shell 31 can fit into the third arc-shaped recess 211 on the base 21, making the overall structure of the fan more compact.

[0094] Of course, in other embodiments, the fixing structure can also be configured as a torsion spring pressing and clamping structure, an octopus-wrap fixing structure, or a belt buckle fixing structure.

[0095] like Figures 15-17 As shown, in this embodiment, the gripper structure is detachably mounted on the base 2 via a press-fit buckle structure. The press-fit buckle structure is located on either the base 2 or the fixed clamping member 11, and the other of the base 2 and the fixed clamping member 11 has a locking structure that can engage with the press-fit buckle. The detachable arrangement of the fan body and the gripper structure allows the fan body to be used individually by hand or placed on a table, or it can be clamped onto a table or a rod-shaped structure in conjunction with the gripper structure, making the portable fan suitable for more usage scenarios.

[0096] In this embodiment, the press-fit buckle structure is located on the base 2, such as... Figure 16As shown, the press-lock structure includes a press-lock 8 and a first elastic element 9. In this embodiment, both the press-lock 8 and the first elastic element 9 are installed inside the base 2, and a slide rail 221 is provided on the inner wall of the bottom cover 22. In this embodiment, two press-lock 8s and one first elastic element 9 are provided. The two press-lock 8s are arranged opposite each other inside the base 2 and are slidably installed in the slide rail 221. The two press-lock 8s can move towards each other or away from each other. In this embodiment, the first elastic element 9 is a spring, and its two ends abut against the two press-lock 8s respectively.

[0097] like Figure 16 and Figure 17 As shown, in this embodiment, the press buckle 8 includes a main body 81, a pressing part 82, and a first buckle part 83. The main body 81 is slidably mounted on the slide rail 221, and the pressing part 82 is located on one end of the main body 81. The pressing part 82 extends at least partially to the outside of the base 2 to facilitate the user's pressing operation. The side wall of the base 2 is provided with a through hole for the pressing part 82 to extend out.

[0098] The first elastic member 9 abuts against the other end of the main body 81, and the end of the main body 81 that abuts against the first elastic member 9 is provided with a protrusion 84. The end of the first elastic member 9 is sleeved on the protrusion 84. The provision of the protrusion 84 is beneficial to improving the installation stability of the first elastic member 9. In this embodiment, the two ends of the first elastic member 9 are respectively sleeved on the two protrusions 84.

[0099] When the pressing parts 82 of the two pressing buckles 8 are pressed at the same time, the two pressing buckles move towards each other and compress the first elastic member 9. When the pressing force on the pressing parts 82 is released, the two pressing buckles 8 can move back to their original positions under the elastic action of the first elastic member 9.

[0100] like Figure 15 As shown, the first latching part 83 is located at the bottom of the main body 81, and the bottom cover 22 has two openings for the first latching part 83 to extend out of the two pressing latches 8. The first latching part 83 extends out of the base 2 and can engage with the latching structure on the fixing clamp 11.

[0101] like Figure 3 , Figure 4 and Figure 18 As shown, in this embodiment, the top of the clamping member 11 of the gripper structure is provided with a mounting base 16. In this embodiment, the mounting base 16 is detachably mounted on the cover portion 112 via a connector 17. Specifically, the cover portion 112 is provided with a mounting groove 18, the bottom of which has an opening. The connector 17 abuts against the mounting groove 18 and cannot be removed from the top of the cover portion 112. The connector 17 is provided with several mounting through holes 171.

[0102] The mounting base 16 has a connecting protrusion 161 at its bottom, which can be inserted into the opening at the bottom of the mounting groove 18. The connecting protrusion 161 has several connecting holes 162, the number of which is the same as the number of mounting through holes 171. When the mounting base 16 is installed on the cover portion 112, the connecting protrusion 161 is inserted into the opening at the bottom of the mounting groove 18. The positions of the connecting holes 162 on the connecting protrusion 161 correspond to the positions of the mounting through holes 171 on the connector 17. Screws or rivets are passed through the mounting through holes 171 and connected to the connecting holes 162, thereby securing the mounting base 16 on the cover portion 112 via the connector 17.

[0103] like Figure 17 As shown, in this embodiment, the first snap-fit ​​part 83 is L-shaped, and the top of the mounting base 16 is provided with a mating part 163. In this embodiment, the snap-fit ​​structure is provided on the mating part 163. Specifically, the mating part 163 is provided with a mating recess 164, such as... Figure 17 and Figure 18 As shown, in this embodiment, the snap-fit ​​structure includes two first snap-fit ​​grooves 165. The two first snap-fit ​​grooves 165 are disposed on two opposing inner sidewalls of the mating recess 164, and the first snap-fit ​​grooves 165 are formed by the inner sidewalls of the mating recess 164 being horizontally recessed inward. The first snap-fit ​​part 83 can snap into the first snap-fit ​​groove 165. When the first snap-fit ​​parts 83 of the two pressing snaps 8 are respectively snapped into the two first snap-fit ​​grooves 165, the fan body can be fixedly assembled onto the clamping structure.

[0104] When the fan body needs to be removed from the mounting base 16, press the pressing parts 82 of the two pressing buckles 8 simultaneously. The two pressing buckles 8 move in the pressing direction and compress the first elastic member 9. At this time, the first buckle part 83 can be disengaged from the first mating groove 165, that is, the first buckle part 83 and the first mating groove 165 are released from the engagement state. Then the fan body can be removed from the gripper structure. When the fan body needs to be installed on the gripper structure, press the pressing parts 82 of the two pressing buckles 8 simultaneously. The first elastic member 9 is in a compressed state, placing the first buckle part 83 in the first mating groove 165. Stop pressing the pressing parts 82. The first elastic member 9 drives the two pressing buckles 8 to reset. At this time, the two first buckle parts 83 can be re-engaged in the two first mating grooves 165, realizing a stable assembly of the fan body and the gripper structure.

[0105] As a preferred technical solution, such as Figure 15As shown, the bottom of the bottom cover 22 is provided with a docking recess 222 for accommodating the docking part 163. The two openings on the bottom cover 22 for the first latching part 83 to extend out are both located on the bottom wall of the docking recess 222, and the shape of the docking recess 222 matches that of the docking part 163. For ease of docking, in this embodiment, the docking part 163 is frustum-shaped, and correspondingly, the docking recess 222 is also frustum-shaped. When the fan body needs to be assembled onto the gripper structure, the docking part 163 can be placed in the docking recess 222 of the bottom cover 22. The docking recess 222 can position the gripper structure, thereby facilitating the quick and accurate placement of the first latching part 83 into the first latching groove 165.

[0106] As a preferred technical solution, the bottom end of the bottom cover 22 is flush with the end of the first buckle part 83 facing the fixing clamp 11, or the bottom end of the bottom cover 22 extends downward beyond the end of the first buckle part 83 facing the fixing clamp 11. This arrangement ensures that the arrangement of the first buckle part 83 does not affect the stable placement of the base 2 on a desktop or other platform.

[0107] As a preferred technical solution, such as Figure 15 As shown, anti-slip pads 224 are also provided at the four corners of the bottom of the bottom cover 22. In this embodiment, the anti-slip pads 224 can be made of rubber. The anti-slip pads 224 can provide good anti-slip and stability when the fan body is placed on the desktop alone.

[0108] In this embodiment, the gripper structure is detachably connected to the fan body, allowing users to choose the appropriate way to use the fan according to their needs. The fan body can be clamped onto a table or a rod-like object, such as a stroller rail or a bed rail. It can also be held in hand or placed on a table, further expanding the fan's usage scenarios.

[0109] This invention allows for easy separation of the gripper structure and the fan body by pressing the snap fastener, or for mounting the fan body onto the gripper structure, making the installation and disassembly of the fan body and the gripper structure very simple and quick.

[0110] like Figure 19 As shown, in this embodiment, the fan head 3 is rotatably connected to the base 2 through the pitch adjustment structure 4. The pitch adjustment structure 4 allows the pitch angle of the fan head 3 to be adjusted, which facilitates the adjustment of the airflow direction of the fan head 3 and improves the user experience.

[0111] like Figure 20As shown, in this embodiment, the seat 21 is provided with a mounting position 212 at the end near the air inlet end of the outer shell 31. In this embodiment, the mounting position 212 is a recess on the seat 21, and two mounting positions 212 are provided. The two mounting positions 212 are respectively located on two opposite side walls at the end of the seat 21. The pitch adjustment structure 4 is installed at the two mounting positions 212.

[0112] like Figures 20-25 As shown, in this embodiment, the pitch adjustment structure 4 includes a connecting shaft 41 and a connecting arm 42. In this embodiment, each mounting position 212 has a circular mounting recess 213 on the side wall of the seat 21. In this embodiment, the connecting shaft 41 is a circular shaft, and two shafts are provided. The connecting shaft 41 is coaxially mounted on the bottom wall of the mounting recess 213. The outer wall of the connecting shaft 41 and the side wall of the mounting recess 213 are spaced apart, that is, the diameter of the connecting shaft 41 is smaller than the diameter of the bottom wall of the mounting recess 213.

[0113] In this embodiment, two connecting arms 42 are provided. Both connecting arms 42 are located at the bottom of the fan head 3. Specifically, the two connecting arms 42 are located on the outer side wall of the housing 31 and extend into the two mounting positions 212 respectively. In this embodiment, the connecting arms 42 are rotatably connected to the connecting shaft 41.

[0114] like Figure 21 As shown, in this embodiment, the connecting arm 42 includes a main body 421, a connecting part 422, and a sleeve part 423. The connecting part 422 is located on the top of the main body 421 and is detachably mounted on the outer side wall of the outer casing 31. Figure 23 and Figure 24 As shown, the outer side wall of the outer shell 31 is provided with an assembly block 312 that is assembled and connected to the connecting part 422. Specifically, in this embodiment, the connecting part 422 is installed on the assembly block 312 by screws. It should be noted that the screw fixing method is a preferred method to achieve the detachable connection between the connecting block 422 and the assembly block 312, and is not intended to limit the present invention.

[0115] As a preferred technical solution, such as Figure 24 As shown, in this embodiment, there are two assembly blocks 312 on the outer side wall of the outer shell 31, and the two assembly blocks 312 are spaced apart, so that an assembly groove 313 is formed between the two assembly blocks 312. The connecting part 422 is provided with a plugging protrusion 424, which can be plugged into the assembly groove 313. When installing the connecting arm 42, the plugging protrusion 424 can be plugged into the assembly groove 313 of the outer shell 31 to play a positioning role. Then, the connecting part 422 is fixedly connected to the outer side wall of the outer shell 31 by screws.

[0116] like Figure 22As shown, in this embodiment, the main body 421 is provided with a connecting through hole 425 for inserting the connecting shaft 41, and a limiting step 426 is provided at the end of the connecting through hole 425 facing away from the base 2. Figure 20 As shown, in this embodiment, a limiting member 411 is detachably provided at the end of the connecting shaft 41 near the connecting arm 42. Specifically, in this embodiment, the limiting member 411 is a circular plate, coaxially disposed on the end of the connecting shaft 41, and the diameter of the limiting member 411 is larger than the diameter of the connecting through hole 425. The limiting member 411 abuts against the limiting step 426. In this embodiment, the limiting member 411 is fixed to the connecting shaft 41 by screws. It should be noted that the screw fixing method is a preferred method to achieve a detachable connection between the limiting member 411 and the connecting shaft 41, and is not intended to limit the present invention.

[0117] In this embodiment, when the connecting arm 42 and the connecting shaft 41 are assembled, the connecting shaft 41 is first passed through the connecting through hole 425 on the main body 421, and then the limiting member 411 is installed on the end of the connecting shaft 41 by screws. The limiting member 411 abuts against the limiting step 426. In this embodiment, the connecting shaft 41 is axially limited to the connecting arm 42 by the setting of the limiting member 411 and the limiting step 426.

[0118] As a preferred technical solution, the end of the connecting shaft 41 is provided with a positioning post 412 and the limiting member 411 is provided with a positioning hole. When the limiting member 411 is assembled with the connecting shaft 41, the positioning post 412 can be inserted into the positioning hole to realize the quick installation and positioning of the limiting member 411 and the connecting shaft 41, thereby effectively improving the installation efficiency of the limiting member 411 and the connecting shaft 41.

[0119] like Figure 21 As shown, in this embodiment, the sleeve portion 423 is provided on the side wall of the main body portion 421 near the connecting shaft 41, and is located at the end of the connecting through hole 425. Figure 21 As shown, when the connecting shaft 41 passes through the connecting through hole 425 on the main body 421, the sleeve part 453 can be inserted into the gap between the outer wall of the connecting shaft 41 and the side wall of the mounting recess 213. In this embodiment, the sleeve part 433 can further improve the stability of the assembly of the connecting shaft 41 and the connecting arm 42.

[0120] As a preferred technical solution, in this embodiment, the main body 421, the connecting part 422 and the sleeve part 423 are integrally formed.

[0121] As a preferred technical solution, such as Figure 21As shown, in this embodiment, the connecting arm 42 is detachably provided with an outer cover 43 on the side facing away from the base 2. The shape of the outer cover 43 matches the shape of the outer side wall of the connecting arm 42. In this embodiment, the top of the outer cover 43 is provided with a plug-in block 431, and the outer shell 31 is provided with a plug-in groove 314 for plugging into the plug-in block 431. By inserting the plug-in block 431 on the outer cover 44 into the plug-in groove 314 on the outer shell 31, the outer cover 43 can be fixedly installed on the outer shell 31, and thus the outer cover 43 can be firmly abutted against the outer side wall of the connecting arm 42.

[0122] When the pitch angle of the fan head 3 needs to be adjusted, the fan head 3 is rotated, and the connecting arm 42 can rotate around the connecting shaft 41, thereby changing the pitch angle of the fan head 3. In order to fix the adjusted pitch angle of the fan head 3 and thus ensure the adjusted blowing angle of the fan head 3, the pitch adjustment structure 4 also includes a rotation positioning component.

[0123] like Figure 20 As shown, in this embodiment, the rotation positioning component uses a friction plate 44, which is a rubber ring. It should be noted that the use of rubber for the friction plate 44 is not a limitation of this invention; other materials can also be used, as long as friction can be used to dampen the rotation of the fan head 3, thus achieving self-locking positioning. Specifically, in this embodiment, the friction plate 44 is located at the rotational connection between the connecting shaft 41 and the connecting arm 42, and is sleeved on the connecting shaft 41. In this embodiment, the friction plate 44 is located between the limiting member 411 and the limiting step 426. This embodiment utilizes the friction of the friction plate 44 to dampen the rotation of the fan head 3, and after rotation, it can achieve self-locking positioning. The friction plate 44 enables the stepless self-locking positioning function of the fan head 3.

[0124] As a preferred technical solution, in order to limit the rotation angle of the connecting arm 42 and prevent excessive rotation angle from causing collisions and wear between structures, the pitch adjustment structure 4 in this embodiment also includes a rotation angle limiting component. For example... Figure 20 and Figure 21 As shown, in this embodiment, the rotation angle limiting component includes a limiting block 451 and a limiting groove 452. The limiting block 451 is disposed on the outer top of the sleeve portion 423, and the limiting groove 452 is disposed on the outer side wall of the base 21 and is connected to the mounting recess 213. The limiting groove 452 is an arc-shaped groove, and the length of the limiting groove 452 can be limited according to actual needs, thereby limiting the rotation angle range of the connecting arm 42.

[0125] like Figure 25As shown, in this embodiment, two mounting positions 212 for mounting the pitch adjustment structure 4 are provided on both sides of the end of the seat 21. In order to make reasonable use of the space of the seat 21, the rechargeable battery pack 73 of the electronic control component in this embodiment is two rechargeable lithium batteries, and the two rechargeable lithium batteries are set together and located between the two mounting positions 212 on the seat 21.

[0126] This embodiment features a rational layout for the wiring used to electrically connect the electronic control components and the fan assembly, resulting in a more rational and compact structural layout for the fan body. Specifically, in this embodiment, the inner wall of the outer casing 31 has several recesses 311 spaced circumferentially along its inner side. For example... Figure 18 As shown, in this embodiment, the connecting arm 42 is provided with a wire channel 427 through which the power supply line passes. In this embodiment, the connecting shaft 41 is hollow and connected to the interior of the outer casing 31, and the limiting member 411 is also provided with an opening through which the power supply line passes.

[0127] In this embodiment, the wiring of the electric connection between the fan assembly and the electronic control assembly is as follows: one end of the wire is electrically connected to the fan assembly, and the other end first passes through the air outlet housing 34 and enters the recess 311 of the outer shell 31. Then, it passes through the insertion slot 314 on the outer shell 31 and enters the wire channel 427 of the connecting arm 42. Finally, it passes through the opening on the limiting member 411 and the interior of the connecting shaft 41 and enters the interior of the base 2, where it is electrically connected to the electronic control assembly.

[0128] In this embodiment, the pitch adjustment structure 4 allows for adjustable pitch angle of the fan head 3, and the friction plate 44 enables stepless positioning and self-locking of the fan head 3, greatly improving the user experience. Furthermore, the wiring routing in this embodiment, in conjunction with the pitch adjustment structure 4, significantly enhances the stability and aesthetics of the wiring.

[0129] Example 2

[0130] This embodiment is a second embodiment of a portable fan. The difference between this embodiment and embodiment 1 lies in the specific configuration of the gripper structure. In this embodiment, the gripper structure includes a fixed gripper 11, a movable gripper 12, and an adjustment component 13. The movable gripper 12 is rotatably connected to the fixed gripper 11. When the movable gripper 12 rotates, the opening between the movable gripper 12 and the fixed gripper 11 can be adjusted, thereby clamping the gripper structure onto the object to be installed. The object to be installed can be a planar structure, such as a desktop, or a rod-shaped structure, such as a stroller rail or a bed rail. It should be noted that the objects that can be installed by the gripper structure in this embodiment are only listed for illustration and are not intended to limit the use of the gripper structure.

[0131] The adjusting component 13 is used to drive the movable clamping member 12 to rotate. The opening degree between the fixed clamping member 11 and the movable clamping member 12 can be adjusted by the adjusting component 13, so that the clamping structure can be firmly clamped on the object to be installed.

[0132] Specifically, such as Figure 9 and Figure 10 As shown, in this embodiment, the adjusting component 13 includes a movable block 131 and a driving member 132. The driving member 132 is connected to the movable block 131 and is used to drive the movable block 131 to move. The movable block 131 is movably engaged with the movable clamping member 12. Specifically, the movable clamping member 12 is provided with a slot 123, and the movable block 131 is movably engaged in the slot 123 of the movable clamping member 12. When the driving member 132 drives the movable block 131 to move, the movable block 131 can drive the movable clamping member 12 to rotate during the movement. When the driving member 132 drives or drives the movable block 131 to move in the opposite direction, the movable block 131 can drive the movable clamping member 12 to rotate in the opposite direction during the movement. When the movable clamping member 12 rotates, it can change the opening size between the fixed clamping member 11 and the movable clamping member 12.

[0133] In this embodiment, the driving component 132 is rotatably connected to the fixed clamping component 11, and the driving component 132 is axially limited on the fixed clamping component 11. This means the driving component 132 cannot move along its axial direction. In this embodiment, the driving component 132 includes a screw portion 134 with an external thread. A moving block 131 has a threaded through hole and is sleeved on the screw portion 134. The moving block 131 is threadedly connected to the screw portion 134, and its circumferential rotation is limited on the screw portion 134, meaning the moving block 131 cannot follow the screw portion 134 in circumferential rotation.

[0134] When the screw part 134 is rotated, since the moving block 131 is threadedly connected to the screw part 134 and cannot rotate circumferentially with the screw part 134, the moving block 131 can move axially along the screw part 134. During the axial movement of the moving block 131 along the screw part 134, since the moving block 131 is engaged in the slot 123 of the movable clamping member 12, the moving block 131 can abut against the side wall of the slot 123 and thus rotate the movable clamping member 12, thereby achieving the purpose of adjusting the opening size of the movable clamping member 12 and the fixed clamping member 11.

[0135] In this embodiment, the fixing clamp 11 is configured as a split structure, such as... Figure 9 and Figure 10As shown, in this embodiment, the fixing clamp 11 includes a body portion 111 and a cover portion 112. The body portion 111 has an opening at its top, and the cover portion 112 covers the top of the body portion 111. The cover portion 112 is detachably connected to the body portion 111 through one or more of the following methods: snap-fit, insertion, threaded connection, screw connection, magnetic attraction, etc. The above-mentioned detachable connection methods are merely examples and are not intended to limit the present invention. As a preferred technical solution, in this embodiment, the cover portion 112 is inserted into the top of the body portion 111.

[0136] The main body 111 has a mounting cavity 118, and the moving block 131 and the screw part 134 are both located in the mounting cavity 118. By placing the moving block 131 and the screw part 134 in the mounting cavity 118 of the main body 111, and then covering the main body 111 with the cover part 112, the adjustment component 13 can be hidden inside the fixed clamping member 11. This not only reduces the damage to the adjustment component 13 and improves the service life of the adjustment component 13, but also saves design space, making the overall structure of the gripper structure more compact, and also greatly improving the external aesthetics of the gripper structure.

[0137] like Figure 9 As shown, in this embodiment, the bottom shape of the body part 111 is similar to a wave shape of "~". The position of the wave peak at the bottom of the body part 111 is the clamping part of the body part 111. In this embodiment, the bottom of the clamping part of the body part 111 includes a first arc-shaped recess 115. The arc-shaped surface of the first arc-shaped recess 115 can better fit with the surface of the rod-shaped object, thereby improving the clamping firmness of the fixing clamp 11 on the rod-shaped structure.

[0138] In this embodiment, the mounting cavity 118 is located at the trough position at the bottom of the main body 111. For example... Figure 9 and Figure 10 As shown, the driving component 132 also includes a limiting part 137 and a handle 138. A screw part 134 passes through the mounting cavity 118, with one end extending into the mounting cavity 118. The end of the screw part 134 extending into the mounting cavity 118 is fixedly connected to the limiting part 137, and the other end of the screw part 134 is fixedly connected to the handle 138. The handle 138 is located outside the body part 111. The handle 138 facilitates user operation; rotating the handle drives the screw part 134 to rotate. As a preferred technical solution, in this embodiment, the handle 138 is provided with anti-slip ridges 1381, which further facilitates user rotation of the handle 138.

[0139] In this embodiment, the driving member 132 is axially limited on the fixed clamping member 11 by the limiting part 137. As a preferred technical solution, in this embodiment, the limiting part 137 and the screw part 134 are configured as a single molded structure.

[0140] like Figure 9 and Figure 10 As shown, the mounting cavity 118 is provided with a mounting support 151, and a limiting member 152 is detachably provided on the mounting support 151. In this embodiment, the limiting member 152 is fixed to the mounting support 151 by screws. Of course, in other embodiments, the limiting member 152 can also be connected to the mounting support 151 by other fixing methods.

[0141] like Figure 10 and 11 As shown, the limiting member 152 is provided with a limiting notch 153, and the limiting part 137 includes a limiting insertion part 1371 that can be inserted into the limiting notch 153. When the limiting insertion part 1371 is inserted into the limiting notch 153, the limiting part 134 can be axially limited on the limiting member 152, thereby axially limiting the screw part 134 on the fixed clamping member 11, so that the screw part 134 cannot move along its axial direction.

[0142] like Figure 9 As shown, the bottom of the main body 111 is provided with an assembly port 119, which is connected to the mounting cavity 118. A part of the movable clamping member 12 extends into the mounting cavity 118 through the assembly port 119 and is assembled with the moving block 131.

[0143] like Figure 12 As shown, in this embodiment, the movable clamping member 12 includes a clamping part 121 and an assembly part 122. The clamping part 121 is disposed opposite to the bottom of the main body part 111 and is used to clamp an object. In this embodiment, the clamping part 121 has a second arc-shaped recess 128 on the side facing the fixed clamping member 11. The arc-shaped surface of the second arc-shaped recess 128 can better fit with the surface of the rod-shaped object, thereby improving the clamping firmness of the movable clamping member 12 on the rod-shaped structure.

[0144] The assembly part 122 is rotatably connected to the main body part 111 via a rotating shaft 126. As a preferred embodiment, the rotating shaft 126 is located at the middle position of the assembly part 122. One end of the assembly part 122 is fixedly connected to the clamping part 121, and the other end extends through the assembly port 119 into the mounting cavity 118 to engage with the moving block 131. As a preferred embodiment, in this case, the assembly part 122 and the clamping part 121 are integrally formed; however, the assembly part 122 and the clamping part 121 can also be detachable and separate structures.

[0145] In this embodiment, the end of the assembly portion 122 of the movable clamping member 12 that extends into the mounting cavity 118 is provided with a slot 123. Specifically, the slot 123 can be directly formed on the end of the assembly portion 122, or it can be other structures with slot 123 fixedly formed on the end of the assembly portion 122. In this embodiment, the slot 123 is directly formed on the end of the assembly portion 122.

[0146] like Figure 12 As shown, in this embodiment, the assembly part 122 includes two mounting blocks 127 arranged at relative intervals. The inner sidewalls of the two mounting blocks 127 are provided with slots 123. The slots 123 are strip-shaped grooves extending out of the mounting blocks 127 at one end. The two ends of the moving block 131 are respectively provided with engaging parts 136, which are movably engaged in the strip-shaped grooves.

[0147] As a preferred technical solution, in this embodiment, the outer side wall of the snap-fit ​​part 136 is disposed adjacent to the inner side wall of the strip groove, but the snap-fit ​​part 136 can still move along the length direction of the strip groove within the strip groove.

[0148] In this embodiment, the screw portion 134 is located at the middle position of the end of the assembly portion 122, and the gap between the two mounting blocks 127 forms a notch through which the screw portion 134 passes. In this embodiment, the structural arrangement of the slot 123 and the mounting portion 122 does not affect the axial movement of the moving block 131 along the screw portion 134, and the moving block 131 can move the end of the assembly portion 122 during movement, thereby driving the movable clamping member 12 to rotate, so as to adjust the opening size between the fixed clamping member 11 and the movable clamping member 12.

[0149] In this embodiment, the slot 123 is set as a strip-shaped slot, which not only allows the moving block 131 to move the assembly part 122 during the movement, but also restricts the circumferential rotation of the moving block 131, that is, the moving block 131 cannot follow the screw part 134 to rotate circumferentially, which greatly simplifies the structure.

[0150] When the slot 123 rotates with the movable clamping member 12 to be directly above the rotation center line of the movable clamping member 12, that is, when the slot 123 is directly above the axis of the rotating shaft 126, the bottom end of the moving block 131 abuts against or is spaced from the bottom of the slot 123. This arrangement allows the moving block 131 to move within a large range on the screw portion 134, thereby ensuring that the movable clamping member 12 has a large range of opening and closing.

[0151] To prevent the movable block 131 from dislodging from the slot 123 of the movable clamping member 12, the fixed clamping member 11 also needs to be provided with a limiting structure to restrict the axial displacement range of the movable block 131 or the rotation range of the movable clamping member 12. In this embodiment, the rotation range of the movable clamping member 12 is limited by designing the opening width of the assembly port 119 along the axial direction of the screw portion 134. At the same time, in this embodiment, an abutment block 154 is also provided on the inner wall of the mounting cavity 118 at the assembly port. When the movable clamping member 12 rotates to the minimum or maximum opening position, the abutment block 154 can provide abutment support and limit the movement of the movable clamping member 12.

[0152] Regardless of the type of limiting structure used to restrict the axial displacement range of the moving block 131 or the rotation range of the movable clamping member 12, it must be ensured that when the moving block 131 moves to the maximum or minimum displacement or the movable clamping member 12 rotates to the minimum or maximum angle, the moving block 131 cannot be completely dislodged from the slot 123.

[0153] As a preferred technical solution, in this embodiment, anti-slip pads 155 are provided at both the first arc-shaped recess 115 of the fixed clamping member 11 and the second arc-shaped recess 128 of the movable clamping member 12. The anti-slip pads 155 are provided to increase the friction between the gripper structure and the object to be installed, thereby improving the stability of the gripper structure. In this embodiment, the anti-slip pads 155 can be silicone pads, rubber pads, or other elastic soft pads made of other materials. As a preferred technical solution, in this embodiment, the outer surface of the anti-slip pads 155 is wavy, which is beneficial to further improve the stability of the gripper structure.

[0154] This utility model adjusts the opening size between the movable clamping member 12 and the fixed clamping member 11 by cooperating with the movable block 131 and the screw part 134, which makes it easy for the claw structure to clamp objects of different sizes. Moreover, the fit between the various parts of the structure is stable, not easy to be damaged, and has a longer service life.

[0155] In use, rotate handle 138 to adjust the opening of the gripper structure. When the opening of the gripper structure is placed on the object to be installed, rotate handle 138 again to reduce the opening of the gripper structure, thus securing the gripper structure to the object. Since the moving block 131 and the screw part 134 are threadedly connected, the position of the moving block 131 can be locked when the screw part 134 is not rotating. That is, the opening size between the movable clamping member 12 and the fixed clamping member 11 can be locked, thereby ensuring that the gripper structure is firmly clamped on the corresponding object. The gripper structure is not easy to tilt or fall off, making it safer and more reliable to use.

[0156] In addition, in this embodiment, the shape of the top of the fixing clamp 11 or the shape of the bottom of the base 2 can be adaptively adjusted so that the snap-fit ​​structure on the fixing clamp can snap into the pressing snap-fit ​​structure on the base 2. The shapes of the top of the fixing clamp 11 and the bottom of the base 2 can also be adjusted as needed, as long as the snap-fit ​​structure and the pressing snap-fit ​​structure can complete the snap-fit.

[0157] like Figure 10 As shown, in this embodiment, the snap-fit ​​structure is set as two second snap-fit ​​parts 166, which are spaced apart on the top of the cover part 112. In this embodiment, the second snap-fit ​​parts 166 are in the shape of an inverted "L". When the first snap-fit ​​part 83 and the second snap-fit ​​part 166 snap together, the claw structure cannot be disengaged from the bottom of the base 2.

[0158] Of course, in other embodiments, when the snap-fit ​​structure is set as the second snap-fit ​​part 166, a second snap-fit ​​groove can also be provided on the snap-fit, so that the snap-fit ​​structure and the base can be snapped together through the second snap-fit ​​part and the second snap-fit ​​groove.

[0159] Example 3

[0160] This embodiment is an example of a portable fan. The difference between this embodiment and Embodiment 1 lies in the specific configuration of the pitch adjustment structure. For example... Figure 26 As shown, in this embodiment, the end of the seat 21 near the air inlet end of the outer shell 31 is provided with a mounting position 212. In this embodiment, one mounting position 212 is provided, and the mounting position 212 is located at the middle position of the end of the seat 21. In this embodiment, the mounting position is formed by the top of the seat being recessed downwards, and the pitch adjustment structure 4 is installed on the mounting position 212.

[0161] like Figure 27 As shown, in this embodiment, a mounting base 214 is provided on the side wall of the mounting position 212 of the base body 21. The mounting base 214 is mounted on the base body 21 by screws or rivets. It should be noted that the fixing method of screws or rivets is a preferred method to achieve a detachable connection between the mounting base 214 and the base body 21, and is not intended to limit the present invention.

[0162] like Figure 28 As shown, in this embodiment, the mounting base 214 has two circular mounting recesses 213 on its two opposite side walls. In this embodiment, the connecting shaft 41 is a circular shaft, and two shafts are provided. The two connecting shafts 41 are coaxially mounted on the mounting base 214 and are located on the bottom walls of the two mounting recesses 213 respectively.

[0163] In this embodiment, two connecting arms 42 are provided. Both connecting arms 42 are located at the bottom of the fan head 3. Specifically, the two connecting arms 42 are located on the outer side wall of the outer casing 31. Both connecting arms 42 extend into the mounting position 212 and are located on both sides of the mounting base 214. The connecting arms 42 are rotatably connected to the connecting shaft 41.

[0164] In this embodiment, the specific structural settings of the connecting shaft 41, connecting arm 42, outer cover 43, and rotation positioning assembly are the same as those described in Embodiment 1, and will not be repeated here.

[0165] As a preferred technical solution, this embodiment also limits the rotation angle of the connecting arm 42 to prevent excessive rotation angle from causing collisions and wear between structures. In this embodiment, the pitch adjustment structure 4 also includes a rotation angle limiting component. This rotation angle limiting component includes a limiting block 451 and a limiting groove 452. The limiting block 451 is located on the outer top of the sleeve portion 423. In this embodiment, the limiting groove 452 is an arc-shaped notch located on the side wall of the mounting recess. The length of the arc-shaped notch can be limited according to actual needs, thereby limiting the rotation angle range of the connecting arm 42.

[0166] Similarly, in this embodiment, the top of the base 21 is provided with a third arc-shaped recess 211. The third arc-shaped recess 211 is designed to match the shape of the outer shell 31 of the fan head 3, so that the outer shell 31 can fit into the third arc-shaped recess 211 on the base 21, making the overall structure of the fan more compact.

[0167] In this embodiment, a mounting position 212 for mounting the pitch adjustment structure 4 is provided at the middle position of the end of the seat 21. In order to make reasonable use of the space of the seat 21, the rechargeable battery pack 73 of the electronic control component in this embodiment is two rechargeable lithium batteries, and the two rechargeable lithium batteries are respectively arranged on both sides of the mounting base 214.

[0168] This embodiment features a rational layout for the wiring used to electrically connect the electronic control component and the fan assembly, resulting in a more rational and compact structural layout for the fan body. One end of the wire is electrically connected to the fan assembly, and the other end extends into the base via the pitch adjustment structure and connects to the electronic control component. Specifically, as shown... Figure 29 As shown, the connecting arm 42 is provided with a power supply cable channel 427 through which the power supply cable passes. One end of the power supply cable channel 427 is connected to the interior of the outer casing 31, and the other end is connected to the connecting through hole 425 of the main body 421. The connecting shaft 41 is hollow. The limiting member 411 is provided with a first power supply cable opening 413 through which the power supply cable passes. The mounting base 214 is provided with a cable passage 215, which connects the two connecting shafts 41 located on the mounting base 214. The bottom of the cable passage 215 is provided with a second power supply cable opening 216, and the mounting position 212 is provided with a third power supply cable opening 217.

[0169] In this embodiment, the wiring connecting the fan assembly 32 and the electronic control assembly is routed as follows: one end of the wire is electrically connected to the fan assembly, and the other end first passes through the air outlet housing 34 into the recess 311 of the outer casing 31, then exits through the insertion slot 314 on the outer casing 31 into the wire channel 427 of the connecting arm 42, and then sequentially passes through the first wire opening 413 on the limiting member 411, the interior of the connecting shaft 41, the wire passage 215 of the mounting base 214, the second wire opening 216 of the wire passage 215, and the third wire opening 217 at the mounting position to extend into the interior of the base. Compared with the pitch adjustment structure 4 in Embodiment 1, the pitch adjustment structure 4 in this embodiment is more concentrated and compact, which helps to reduce the volume of the fan body, making the fan body lighter and more portable.

[0170] It should be noted that while the preferred embodiments of this utility model are provided in the specification and accompanying drawings, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this utility model; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A portable fan, comprising a fan body and a fixing structure, wherein the fan body is connected to the fixing structure, characterized in that: The fan body includes a fan head, a base, and a pitch adjustment structure. The fan head is rotatably mounted on the base via the pitch adjustment structure. The pitch adjustment structure includes a connecting shaft and a connecting arm, which are rotatably connected. A rotation positioning component is provided at the rotatable connection between the connecting shaft and the connecting arm. The base has a mounting position, and the pitch adjustment structure is located at the mounting position. The connecting shaft and the connecting arm are respectively fixed on the fan head and the base, or on the base and the fan head.

2. The portable fan according to claim 1, characterized in that: The base has two mounting positions, which are located on both sides of the end of the base. The connecting shaft is fixed to the outer wall of the base at the mounting position, and the connecting arm is fixed to the bottom of the fan head.

3. The portable fan according to claim 2, characterized in that: The connecting arm includes a main body and a connecting part. The connecting part is located at the top of the main body and is detachably connected to the bottom of the fan head. The main body is rotatably connected to the connecting shaft.

4. The portable fan according to claim 3, characterized in that: The bottom of the fan head is provided with at least two spaced-apart assembly blocks. The connecting part is detachably connected to the assembly blocks. An assembly groove is formed between two adjacent assembly blocks. The connecting part is provided with a plug-in protrusion that can be plugged into the assembly groove.

5. The portable fan according to claim 3, characterized in that: One end of the connecting shaft is fixedly connected to the side wall of the base, and the other end is provided with a limiting member; the main body is provided with a connecting through hole for the connecting shaft to be inserted, and the end of the connecting through hole facing away from the base is provided with a limiting step; when the connecting arm is installed on the connecting shaft, the limiting member abuts against the limiting step.

6. The portable fan according to claim 5, characterized in that: The limiting member is detachably connected to the connecting shaft; the rotation positioning component is a friction plate, which is sleeved on the connecting shaft and is limited to abutting between the limiting member and the limiting step.

7. The portable fan according to claim 3, characterized in that: Each mounting position has a mounting recess on the outer wall of the base. The connecting shaft is coaxially mounted on the bottom wall of the mounting recess, and the outer wall of the connecting shaft is spaced apart from the side wall of the mounting recess.

8. The portable fan according to claim 7, characterized in that: The connecting arm also includes a sleeve portion, which is disposed on the main body portion; when the connecting arm is installed on the connecting shaft, the sleeve portion can be inserted into the gap between the outer wall of the connecting shaft and the side wall of the mounting recess.

9. The portable fan according to claim 8, characterized in that: A limiting block is provided on the outer wall of the sleeve portion, and an arc-shaped limiting groove is provided on the outer wall of the base portion. The limiting groove is connected to the mounting recess. When the sleeve portion is inserted into the mounting recess, the limiting block is limited to the limiting groove.

10. The portable fan according to any one of claims 1-9, characterized in that: The connecting arm has a detachable outer cover on the side facing away from the base.

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