A hanging neck type portable fan with adjustable air outlet angle

Abstract

This utility model relates to the field of neck-hanging portable fans, specifically to a neck-hanging portable fan with an adjustable airflow angle. It includes a fan body, a grip rotatably connected to the bottom of the fan body, a neck strap fixedly connected to both sides of the grip for hanging around the neck, an air guide cover mounted on the side wall of the fan body, fixed blades fixedly connected to the middle of the inner wall of the air guide cover, and multiple evenly distributed adjustable blades rotatably connected to the inner wall of the air guide cover near the fixed blades. A receiving box is fixedly connected to the bottom of the air guide cover, and an adjustment mechanism for adjusting the airflow angle of the air guide cover is provided between the air guide cover and the receiving box. Compared to existing technologies, this invention allows for precise adjustment of the airflow direction according to the actual usage scenario, achieving rapid cooling of localized areas or widespread heat dissipation for multiple parts of the upper body, significantly improving the fan's performance and comfort.

Description

Technical Field

[0001] This utility model relates to the field of neck-hanging portable fan technology, and in particular to a neck-hanging portable fan with an adjustable airflow angle. Background Technology

[0002] With the increasing demand for personal portable cooling devices, neck-hook portable fans have gradually become a common product in summer travel, outdoor activities, and commuting due to their advantages such as hands-free use, light weight, and ease of carrying. Existing neck-hook fans generally include a fan head, which is hung around the neck via a lanyard. The fan's operation directs airflow towards the face or neck to achieve a cooling effect.

[0003] A Chinese patent has been published: a portable foldable electric fan with a neckband, patent announcement number: CN210397199U. The patent "includes an electric fan body, a handle and a traction member pivotally connected to the electric fan body. The bottom of the electric fan body is provided with a connecting part, the connecting part has a pivot shaft, the handle is provided with a first bracket, a second bracket and a grip, and a mounting groove is provided between the first bracket, the second bracket and the grip for the connecting part to cooperate. The mounting groove is provided with a pivot hole for the pivot shaft to be installed. The pivot shaft rotates around the pivot hole to realize that the electric fan body is foldable relative to the handle."

[0004] While this fan is portable and foldable enough to hang around the user's neck, allowing the airflow to face the user and freeing up their hands, thus improving the user experience, the neck-hanging portable fan only supports vertical airflow adjustment and lacks multi-dimensional angle adjustment capabilities. Users cannot flexibly adjust the airflow direction according to their actual needs. In scenarios requiring concentrated airflow, such as rapid cooling of a localized area, the fan's fixed airflow mode makes it difficult to accurately guide the airflow, resulting in insignificant cooling effects. In situations requiring wide-angle airflow, the airflow coverage is limited, unable to simultaneously act on multiple parts of the body, making it difficult to effectively improve overall heat dissipation efficiency, thus affecting the user experience and comfort. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a neck-hanging portable fan with an adjustable air outlet angle, so as to solve the problem that existing neck-hanging fans lack multi-dimensional angle adjustment capabilities and users cannot flexibly adjust the airflow direction according to actual needs.

[0006] To achieve the above objectives, this utility model provides a neck-hanging portable fan with an adjustable airflow angle, comprising a fan body, a grip portion rotatably connected to the bottom of the fan body, a neck strap for hanging around the neck fixedly connected between the two sides of the grip portion, an air guide cover installed on the side wall of the fan body, a fixed blade fixedly connected to the middle part of the inner wall of the air guide cover, and multiple equidistant and evenly distributed adjustable blades rotatably connected to the two sides of the inner wall of the air guide cover near the fixed blades, a receiving box fixedly connected to the bottom of the air guide cover, and an adjustment mechanism for adjusting the airflow angle of the air guide cover provided between the air guide cover and the receiving box.

[0007] Preferably, the adjustment mechanism includes a fixed block fixedly connected to the side wall of the fixed blade, and grooved blocks are fixedly connected to the flow path of the fixed block. Adjustment plates are slidably connected inside the grooved blocks. Multiple telescopic plates evenly distributed at equal intervals are rotatably connected to the top of the adjustment plates. One end of the telescopic plates is fixedly connected to the side wall of the adjustment blade.

[0008] Preferably, the adjustment mechanism further includes a rotating block rotatably connected to the inner wall of the receiving box, push blocks fixedly connected to both outer walls of the rotating block, sliders slidably connected to both sides of the inner wall of the receiving box near the rotating block, rollers rotatably connected to one end of each slider near the push block, springs fixedly connected to one end of each slider away from the rollers, the other end of the springs fixedly connected to the inner wall of the receiving box, a movable plate fixedly connected to the top of the slider, and the top of the movable plate fixedly connected to the bottom of the adjustment plate.

[0009] Preferably, the shaft of the rotating block passes through the outer wall of the receiving box and is fixedly connected to a twisting disc for the user to rotate and push the block. The side wall of the twisting disc is threaded with a threaded post, and the end of the threaded post near the receiving box passes through the side wall of the twisting disc.

[0010] Preferably, the sidewall of the grip portion has a planar structure, a magnet is fixedly connected to the sidewall of the grip portion, an adsorbent iron sheet for clamping inside the shirt is adsorbed on the sidewall of the magnet, and a rubber pad is fixedly connected to the sidewall of the adsorbent iron sheet.

[0011] Preferably, when the adjusting plates move away from or close to each other, they will cause multiple equidistant and evenly distributed telescopic plates to extend, and when the multiple equidistant and evenly distributed telescopic plates extend, they will cause multiple adjusting blades to rotate.

[0012] Preferably, the spring force is greater than the force of the airflow generated by the fan body blowing onto the regulating blades.

[0013] The beneficial effects of this utility model are:

[0014] This neckband-style portable fan features an adjustable airflow angle. The adjustment mechanism uses a torsion disc to rotate a rotating block and a pushing block, simultaneously moving a slider and a movable plate. This, in turn, drives the adjustment plate to slide within a recessed block, causing a telescopic plate and adjusting blades to flexibly adjust the fan's airflow angle. This allows for free switching between concentrated and wide-angle airflow, effectively meeting users' needs for different airflow modes. This structural design enables users to precisely adjust the airflow direction according to actual usage scenarios, achieving rapid cooling in localized areas or widespread heat dissipation for multiple parts of the upper body. This significantly improves the fan's performance and comfort, solving the problem of existing fans only being able to adjust vertically and lacking multi-dimensional adjustment capabilities, thus enhancing the fan's practicality and flexibility. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the magnet and the iron-adsorbing sheet of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the air guide cover of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the push block and slider of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the adjusting blade and telescopic plate of this utility model.

[0021] The diagram is marked as follows:

[0022] 1. Fan body; 2. Handle; 3. Neck strap; 4. Air guide cover; 5. Fixed blades; 6. Adjustable blades; 7. Fixed block; 8. Groove block; 9. Adjustment plate; 10. Telescopic plate; 11. Rotating block; 12. Pushing block; 13. Slider; 14. Roller; 15. Spring; 16. Moving plate; 17. Receptacle box; 18. Twist disc; 19. Threaded column; 20. Magnet; 21. Adsorption iron sheet; 22. Rubber pad. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0024] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] like Figures 1 to 5 As shown, a portable neckband fan with an adjustable airflow angle includes a fan body 1, a grip 2 rotatably connected to the bottom of the fan body 1, a neck strap 3 fixedly connected between the two sides of the grip 2 for hanging around the neck, an air guide shroud 4 installed on the side wall of the fan body 1, a fixed blade 5 fixedly connected to the middle part of the inner wall of the air guide shroud 4, a plurality of equidistant and evenly distributed adjustable blades 6 rotatably connected to the two sides of the inner wall of the air guide shroud 4 near the fixed blades 5, a receiving box 17 fixedly connected to the bottom of the air guide shroud 4, and an adjustment mechanism for adjusting the airflow angle of the air guide shroud 4 is provided between the air guide shroud 4 and the receiving box 17.

[0026] Further, see attached document. Figures 1 to 5 As shown, the adjustment mechanism includes a fixed block 7 fixedly connected to the side wall of the fixed blade 5. Grooved blocks 8 are fixedly connected to the flow path of the fixed block 7. Adjusting plates 9 are slidably connected inside each grooved block 8. Multiple equidistant telescopic plates 10 are rotatably connected to the top of the adjusting plates 9. One end of each telescopic plate 10 is fixedly connected to the side wall of the adjusting blade 6. The adjustment mechanism also includes a rotating block 11 rotatably connected to the inner wall of the receiving box 17. Pushing blocks 12 are fixedly connected to the outer walls of both sides of the rotating block 11. Sliding blocks 12 are slidably connected to the inner walls of the receiving box 17 near the rotating block 11. Two sliders 13 are connected to a roller 14 at the end of each slider 13 near the push block 12. A spring 15 is fixedly connected at the end of each slider 13 away from the roller 14. The other end of the spring 15 is fixedly connected to the inner wall of the receiving box 17. A movable plate 16 is fixedly connected to the top of the slider 13. The top of the movable plate 16 is fixedly connected to the bottom of the adjusting plate 9. When the adjusting plates 9 move away from or close to each other, they will drive multiple equidistant and evenly distributed telescopic plates 10 to extend. When the multiple equidistant and evenly distributed telescopic plates 10 extend, they will drive multiple adjusting blades 6 to rotate.

[0027] In use, the user first rotates the torsion disc 18. The torsion disc 18 drives the rotating block 11 to rotate through its shaft that passes through the outer wall of the receiving box 17. The pushing blocks 12, which are fixedly connected to both sides of the rotating block 11, rotate circumferentially. During rotation, the pushing blocks 12 contact the rollers 14 inside the receiving box 17 and push the sliders 13 located on both sides of them outward through the rollers 14, causing the two sliders 13 to move away from each other and compressing the spring 15 connected to the far end. When the sliders 13 move, the moving plate 16 fixedly connected to its top moves outward synchronously. The top of the moving plate 16 is connected to the adjusting plate 9, thereby causing the adjusting plate 9 to slide in the groove block 8, causing the two adjusting plates 9 to move away from each other. As the distance between the adjusting plates 9 increases, the multiple telescopic plates 10 installed on its top move accordingly. Extending outwards synchronously, the telescopic plate 10 is fixed to the side wall of the adjusting blade 6, thus causing the adjusting blade 6 to rotate around its rotation axis. After the adjusting blade 6 rotates, the angle relative to the fixed blade 5 gradually decreases, making the airflow direction of the air outlet tend to be concentrated, thereby achieving concentrated air supply. It can quickly blow towards the face or neck area, effectively improving the local cooling efficiency. When the user needs wide-angle air supply, he only needs to rotate the torsion plate 18 in the opposite direction. The rotating block 11 drives the pushing block 12 to rotate in the opposite direction. The spring 15 rebounds and drives the slider 13 to move inwards. The moving plate 16 and the adjusting plate 9 also slide inwards. Through the telescopic plate 10, the angle of the adjusting blade 6 relative to the fixed blade 5 gradually increases, thereby achieving wide-angle air supply. The airflow can act on multiple areas of the body at the same time, enhancing the overall heat dissipation experience.

[0028] Further, see attached document. Figure 4 As shown, the shaft of the rotating block 11 passes through the outer wall of the receiving box 17 and is fixedly connected to a twist disk 18 for the user to rotate the push block 12. A threaded post 19 is threadedly connected to the side wall of the twist disk 18, and one end of the threaded post 19 near the receiving box 17 passes through the side wall of the twist disk 18.

[0029] This allows users to directly rotate the push block 12 manually, thereby indirectly adjusting the angle of the blade 6. The side wall of the twist disk 18 is threadedly connected to the threaded post 19. By rotating the threaded post 19, one end of the threaded post 19 abuts against the outer wall of the receiving box 17, thus fixing the twist disk 18 and preventing the adjustment blade 6 from rotating due to the rotation of the push block 12.

[0030] Further, see attached document. Figure 2 As shown, the side wall of the gripping part 2 has a planar structure. A magnet 20 is fixedly connected to the side wall of the gripping part 2. An adsorption iron sheet 21 for clamping inside the shirt is adsorbed on the side wall of the magnet 20. A rubber pad 22 is fixedly connected to the side wall of the adsorption iron sheet 21.

[0031] The grip part 2 adopts a planar structure design, which enhances the fit and comfort when in contact with the human body. The magnet 20 set on its side wall can be attached to the adsorption iron sheet 21 clipped inside the shirt. The outer side of the adsorption iron sheet 21 is also equipped with a rubber pad 22 to prevent the skin from directly contacting the surface of the adsorption iron sheet 21. This structure not only securely hangs the fan body 1 in front of the user's chest, but also prevents the device from shaking and shifting during the user's activities, improving the stability and comfort of wearing it.

[0032] Further, see attached document. Figure 4 As shown, the elastic force of spring 15 is greater than the force of the air blown by the fan body 1 onto the regulating blades 6.

[0033] The spring force of spring 15 is designed to be greater than the blowing force of the wind generated by the fan during operation on the adjusting blades 6, ensuring that the position of the adjusting blades 6 will not shift due to changes in wind pressure during operation of the fan body 1. By enhancing the rebound force, the stability of the blade angle is effectively maintained, so that the wind direction adjustment structure maintains a precise adjustment effect under various operating conditions.

[0034] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0035] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hanging neck portable fan with adjustable air outlet angle, comprising a fan body (1), the bottom of the fan body (1) is rotatably connected with a holding part (2), the two sides of the holding part (2) are fixedly connected with a hanging neck rope (3) for hanging on the neck, characterized in that: A guide shroud (4) is installed on the side wall of the fan body (1). A fixed blade (5) is fixedly connected to the middle part of the inner wall of the guide shroud (4). Multiple equidistant and evenly distributed adjustment blades (6) are rotatably connected to the inner wall of the guide shroud (4) on both sides near the fixed blade (5). A receiving box (17) is fixedly connected to the bottom of the guide shroud (4). An adjustment mechanism for adjusting the air outlet angle of the guide shroud (4) is provided between the guide shroud (4) and the receiving box (17).

2. The hanging neck portable fan with adjustable air outlet angle according to claim 1, characterized in that, The adjustment mechanism includes a fixed block (7) fixedly connected to the side wall of the fixed blade (5). The fixed block (7) is fixedly connected to a groove block (8) in each direction. An adjustment plate (9) is slidably connected inside the groove block (8). Multiple telescopic plates (10) are rotatably connected to the top of the adjustment plate (9). One end of the telescopic plate (10) is fixedly connected to the side wall of the adjustment blade (6).

3. The hanging neck portable fan with adjustable air outlet angle according to claim 2, characterized in that, The adjustment mechanism further includes a rotating block (11) rotatably connected to the inner wall of the receiving box (17). Push blocks (12) are fixedly connected to both outer walls of the rotating block (11). Slider blocks (13) are slidably connected to both sides of the inner wall of the receiving box (17) near the rotating block (11). Rollers (14) are rotatably connected to one end of each slider (13) near the push block (12). Springs (15) are fixedly connected to one end of each slider (13) away from the rollers (14). The other end of the springs (15) is fixedly connected to the inner wall of the receiving box (17). A moving plate (16) is fixedly connected to the top of the slider (13). The top of the moving plate (16) is fixedly connected to the bottom of the adjustment plate (9).

4. A neck-hanging portable fan with an adjustable airflow angle according to claim 3, characterized in that, The shaft of the rotating block (11) passes through the outer wall of the receiving box (17) and is fixedly connected to a twisting disc (18) for the user to rotate the pushing block (12). The side wall of the twisting disc (18) is threaded with a threaded post (19), and the end of the threaded post (19) near the receiving box (17) passes through the side wall of the twisting disc (18).

5. A neck-hanging portable fan with an adjustable airflow angle according to claim 1, characterized in that, The sidewall of the gripping part (2) has a planar structure. A magnet (20) is fixedly connected to the sidewall of the gripping part (2). An adsorbent iron sheet (21) for clamping inside the shirt is adsorbed on the sidewall of the magnet (20). A rubber pad (22) is fixedly connected to the sidewall of the adsorbent iron sheet (21).

6. A neck-hanging portable fan with an adjustable airflow angle according to claim 3, characterized in that, When the adjusting plates (9) move away from or close to each other, they will cause multiple equidistant and evenly distributed telescopic plates (10) to extend. When the multiple equidistant and evenly distributed telescopic plates (10) extend, they will cause multiple adjusting blades (6) to rotate.

7. A neck-hanging portable fan with an adjustable airflow angle according to claim 3, characterized in that, The elastic force of the spring (15) is greater than the force of the wind generated by the fan body (1) blowing onto the regulating blades (6).

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