Electric fan
By introducing fixed components of the inverter, friction plate and spring plate into the electric fan, the friction between the inverter and the inverter is used to generate damping force, which solves the problem that traditional electric fans cannot adjust, and achieves large-angle, infinite adjustment and better balance effect.
Patent Information
- Application Number
- CN202422510781.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-10-16
AI Technical Summary
Traditional electric fans cannot be adjusted in the vertical direction, the adjustment angle is limited, and the experience is poor.
A fixing assembly including a gear plate, a friction plate, a spring plate and a nut is adopted to generate a damping force through the friction between the friction plate and the gear plate, realize a large angle of infinite adjustment, and limit the pitch angle of the fan through the limit plate and the limit block.
It realizes large-angle infinity adjustment and better balance effect, improves the pitch angle adjustment range of the fan, and enhances the user experience.
Smart Images
Figure CN223120236U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of electric fans, and particularly to an electric fan. Background Art
[0002] Traditional electric fans generally can only swing at a certain angle in the horizontal direction and cannot be adjusted in the vertical direction. To solve the above problems, fans that can adjust the pitching angle have gradually emerged on the market.
[0003] In the prior art, the structure of such a fan is: including a U-shaped seat, a fan rotatably connected to the U-shaped seat, and a limiting member provided on the U-shaped seat. The fan is pivotally connected between two support arms of the U-shaped seat. After adjusting the required pitching angle, it is limited by the limiting member. The limiting member in the prior art is usually a limiting rod threadedly connected to the U-shaped seat. The fan is correspondingly provided with a positioning groove for the limiting rod to slide and insert. There are several positioning grooves, so the adjustable angle is relatively limited and the experience is poor. Therefore, further improvement is needed. Utility Model Content
[0004] In order to increase the pitching angle adjustment range of the fan, this application provides an electric fan.
[0005] An electric fan provided by this application adopts the following technical solutions:
[0006] An electric fan includes a support frame, a fan rotatably connected to the support frame, and a fixing component for restricting the rotation of the fan. The support frame protrudes with a rotating shaft, and the rotating shaft rotatably penetrates into the fan and extends into the fan. The lower end of the fan is rotatably connected to the upper end of the support frame; the fixing component includes a brake lining, a friction plate, and a spring plate sleeved on the rotating shaft, and a nut threadedly connected to the rotating shaft. The rotating shaft includes an installation section for installing the brake lining, the friction plate, and the spring plate along its length direction, and a threaded section for the nut to be threadedly connected; the brake lining is rotatably connected to the rotating shaft, and a fixing seat connected to the brake lining is fixedly connected inside the fan so as to drive the brake lining to rotate when the fan rotates. The friction plate abuts against the surface of the brake lining close to the threaded section, the spring plate is arranged on the surface of the friction plate away from the brake lining, and the nut is arranged on the surface of the spring plate away from the friction plate; a first limiting surface is arranged on the outer peripheral wall of the rotating shaft along its own length direction, and first limiting blocks protruding and abutting against the first limiting surface are arranged on the inner walls of the friction plates.
[0007] By adopting the above technical solution, since the inner wall of the friction plate is convexly provided with a first abutting block that abuts against the first limiting surface, when the fan rotates to drive the brake pad to rotate, the friction plate does not rotate. Due to the elastic force applied by the spring plate to the friction plate, friction will occur between the brake pad and the friction plate to generate a damping force, realizing the angle adjustment of the large-weight fuselage and also realizing the stepless adjustment of a large angle, thereby improving the pitching angle adjustment range of the fan.
[0008] Preferably, two rotating shafts are provided and respectively rotatably penetrate through both sides of the fan, and two corresponding fixing components are respectively arranged on the two rotating shafts.
[0009] By adopting the above technical solution, by providing two rotating shafts and two corresponding fixing components, the fan can obtain a greater frictional damping force and a better balancing effect when rotating. Similar technical effects can also be provided when only using a single-sided brake pad.
[0010] Preferably, the surface of the spring plate close to the nut is provided with an arc surface.
[0011] By adopting the above technical solution, by providing an arc surface, when the nut abuts, the elastic force range value can be increased, and the possibility of relative sliding when the nut tightly abuts against the spring plate can be reduced.
[0012] Preferably, a friction plate is further arranged between the spring plate and the nut.
[0013] By adopting the above technical solution, the damping range formed by the friction between the spring plate and the part close to the brake pad is increased, thereby improving the pitching angle adjustment range of the fan.
[0014] Preferably, the fixed seat is provided with a fixing piece sleeved on the installation section, and the surface of the fixing piece close to the brake pad is convexly provided with two second limiting blocks arranged oppositely, and a second limiting surface for the second limiting blocks to abut against is formed on the outer peripheral wall of the brake pad.
[0015] By adopting the above technical solution, the brake pad is clamped in the card slot formed between the two second limiting blocks to limit the possibility of the brake pad rotating. And as it is used, the brake pad will be worn, and the subsequent angle fixing effect of the fan will also be reduced. Therefore, through the setting of the second limiting block and the second limiting surface, it is also convenient for replacement.
[0016] Preferably, the fixing component further includes a limiting piece sleeved on the rotating shaft. The limiting piece is disposed on the surface of the brake pad away from the friction plate. A first limiting block abutting against the first limiting surface is also protrudingly provided on the inner wall of the limiting piece; a third limiting block is protrudingly provided on the outer peripheral wall of the limiting piece, and a fourth limiting block for abutting against the third limiting block is protrudingly provided on the outer peripheral wall of the fixing piece.
[0017] By adopting the above technical solution, by providing a limiting piece, as well as a third limiting block provided on the limiting piece and a fourth limiting block provided on the fixing piece, it is used to limit the range of the pitching angle that the fan can achieve.
[0018] Preferably, a crack stopping groove is provided in the middle of the third limiting block.
[0019] By adopting the above technical solution, by providing a crack stopping groove, the possibility of the third limiting block breaking after being pressed is reduced.
[0020] Preferably, the support frame includes two first support rods respectively disposed on both sides of the fan, two second support rods respectively fixedly connected to the two first support rods, and two third support rods. The two third support rods are respectively disposed between the two first support rods and the two second support rods. The rotating shaft is disposed on the first support rod. Both the first support rod and the second support rod are inclined to the ground and are arranged in an inverted V shape therebetween.
[0021] By adopting the above technical solution, through the first support rod and the second support rod, a larger flipping range is provided for the fan, reducing the possibility of hitting the support frame during the flipping process.
[0022] Preferably, the support frame further includes a fourth support rod disposed between the two third support rods.
[0023] By adopting the above technical solution, through the fourth support rod, the support effect on the fan is improved.
[0024] Preferably, a groove for the first support rod to be snap-fitted is provided on the surface of the fan close to the first support rod.
[0025] By adopting the above technical solution, when it rotates to the position of the first support rod, it can be abutted, thereby improving the support effect on the fan.
[0026] In summary, the present utility model has the following beneficial effects:
[0027] 1. The friction between the brake pad and the friction plate generates a damping force, realizing the angle adjustment of the large-weight body, and at the same time realizing the stepless adjustment of the large angle, thereby improving the pitching angle adjustment range of the fan.
[0028] 2. By providing two rotating shafts and two corresponding fixed components, the fan can obtain a greater frictional damping force and a better balancing effect when rotating. Similar technical effects can also be provided when only using one-sided brake pads.
[0029] 3. By providing a limiting piece, a third limiting block provided on the limiting piece, and a fourth limiting block provided on the fixed piece, the range of the pitching angle that the fan can achieve is restricted. Description of the Drawings
[0030] Figure 1 is the overall structural schematic diagram of the embodiment of the present application;
[0031] Figure 2 is the internal structural schematic diagram of the fan in the embodiment of the present application;
[0032] Figure 3 is the rear structural schematic diagram of the fan in the embodiment of the present application;
[0033] Figure 4 is Figure 2 the partial enlarged schematic diagram of part A in
[0034] Figure 5 is the exploded structural schematic diagram of the fixed component in the embodiment of the present application.
[0035] Description of the Reference Numerals: 1. Support frame; 11. First support rod; 12. Second support rod; 13. Third support rod; 14. Fourth support rod; 15. Connecting rod; 2. Fan; 21. Groove; 3. Fixed component; 31. Limiting piece; 311. Third limiting block; 312. Crack stop groove; 313. Fixed plate; 32. Brake pad; 321. Second limiting surface; 33. Friction plate; 34. Spring plate; 341. Arc surface; 35. Nut; 4. Rotating shaft; 41. Installation section; 42. Thread section; 43. First limiting surface; 5. First limiting block; 6. Fixed piece; 61. Fixed seat; 62. Second limiting block; 63. Fourth limiting block. Detailed Description of the Embodiment
[0036] The following will further describe the present application in detail Figures 1-5 in conjunction with the attached drawings.
[0037] The embodiment of the present application discloses an electric fan.
[0038] Embodiment:
[0039] An electric fan, referring to Figure 1 , Figure 2, including a support frame 1, a fan 2 rotatably connected to the support frame 1, and a fixing component 3 for restricting the rotation of the fan 2. Among them, the support frame 1 specifically includes two first support rods 11 respectively arranged on both sides of the fan 2, two second support rods 12 respectively fixedly connected to the two first support rods 11, two third support rods 13, and a fourth support rod 14 fixedly connected to the two third support rods 13. The two third support rods 13 are respectively fixedly connected to the lower ends between the lower ends of the two first support rods 11 and the two second support rods 12. The first support rods 11 and the second support rods 12 are both inclined to the ground, and are arranged in an inverted V shape between them.
[0040] Refer to Figure 3 , in this embodiment, a groove 21 for the first support rod 11 to be embedded is formed on the surface of the fan 2 close to the first support rod 11, so as to support the fan 2 when the fan 2 rotates to the position of the first support rod 11. Moreover, the lower end of the first support rod 11 is inclined in a direction away from the second support rod 12 to abut against the end of the fan 2 that is not connected to the support frame 1.
[0041] Refer to Figure 2 , Figure 4 , among which, the lower end of the fan 2 is rotatably connected to the upper end of the first support rod 11. Specifically, a connecting rod 15 protrudes from the upper end of the first support rod 11. There are two corresponding connecting rods 15. A rotating shaft 4 is penetrated through both of the two connecting rods 15. The rotating shaft 4 rotatably penetrates through the fan 2 and extends into the fan 2. In this embodiment, the fixing component 3 is arranged on the rotating shaft 4, and one fixing component 3 is respectively arranged corresponding to the two rotating shafts 4.
[0042] Refer to Figure 4 , Figure 5 , among which, the fixing component 3 includes a limiting piece 31 sleeved on the rotating shaft 4, a brake lining 32, a friction piece 33, a spring piece 34, and a nut 35 threadedly connected to the rotating shaft 4. In this embodiment, the rotating shaft 4 includes an installation section 41 for installing the limiting piece 31, the brake lining 32, the friction piece 33, and the spring piece 34 along its length direction, and a threaded section 42 for the nut 35 to be threadedly connected. A first limiting surface 43 is arranged on the outer peripheral wall of the rotating shaft 4 along its own length direction, and the first limiting surface 43 extends to the end surface of the rotating shaft 4 away from the connecting rod 15. The first limiting surface 43 is arranged at intervals around the axis of the rotating shaft 4, and specifically four are arranged. First limiting blocks 5 that abut against the first limiting surface 43 protrude from the inner walls of the limiting piece 31 and the friction piece 33, corresponding to the number of the first limiting surfaces 43.
[0043] Among them, the limiting piece 31 is arranged close to the connecting rod 15. A fixing piece 6 sleeved on the rotating shaft 4 is arranged between the limiting piece 31 and the brake pad 32. The fixing piece 6 is rotatably sleeved on the rotating shaft 4. The fixing piece 6 abuts against the mutually approaching surfaces of the limiting piece 31 and the brake pad 32. The fixing piece 6 is integrally formed with a fixing seat 61 for fixedly connecting with the inside of the fan 2. In this embodiment, the brake pad 32 is rotatably sleeved on the rotating shaft 4. A second limiting block 62 is fixedly protruded from the surface of the fixing piece 6 close to the brake pad 32. There are two second limiting blocks 62 and they are arranged oppositely. A second limiting surface 321 for the second limiting block 62 to abut against is formed on the outer peripheral wall of the brake pad 32, so as to drive the brake pad 32 to rotate when the fan 2 rotates. In this embodiment, the limiting piece 31 is used to limit the rotation angle of the fan 2. For this purpose, a third limiting block 311 is fixedly protruded from the outer peripheral wall of the limiting piece 31. A crack stopping groove 312 is arranged in the middle of the third limiting block 311. A fixing plate 313 for fixing with the connecting rod 15 is protruded inside the crack stopping groove 312. A fourth limiting block 63 for abutting against the third limiting block 311 is fixedly protruded from the outer peripheral wall of the fixing piece 6.
[0044] Among them, two friction plates 33 are arranged and are respectively arranged on both sides of the spring plate 34. One of the friction plates 33 abuts against the surface of the brake pad 32 away from the fixing piece 6. After the spring plate 34 abuts against this friction plate 33, the other friction plate 33 is abutted against the spring plate 34. Then, the nut 35 is threadedly connected to the threaded section 42 and abuts against the spring plate 34. Among them, an arc surface 341 is arranged on the surface of the spring plate 34 close to the nut 35.
[0045] The implementation principle of an electric fan in an embodiment of the present application is as follows: Since a first abutting block protruding against the first limiting surface is arranged on the inner wall of the friction plate 33, when the fan 2 rotates and drives the brake pad 32 to rotate, the friction plate 33 does not rotate. Since the spring plate 34 applies a certain elastic force to the friction plate 33, friction will occur between the brake pad 32 and the friction plate 33 to generate a damping force, realizing the angle adjustment of a large-weight body and also realizing stepless adjustment of a large angle, so as to improve the pitching angle adjustment range of the fan 2.
[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. An electric fan, characterized in that: It includes a support frame (1), a fan (2) rotatably connected to the support frame (1), and a fixing component (3) for restricting the rotation of the fan (2). The support frame (1) protrudes with a rotating shaft (4). The rotating shaft (4) rotatably penetrates into the fan (2) and extends into the fan (2). The lower end of the fan (2) is rotatably connected to the upper end of the support frame (1). The fixing component (3) includes a brake lining (32), a friction plate (33), a spring plate (34) sleeved on the rotating shaft (4), and a nut (35) threadedly connected to the rotating shaft (4). The rotating shaft (4) includes an installation section (41) for installing the brake lining (32), the friction plate (33), and the spring plate (34) along its length direction and a threaded section (42) for the nut (35) to be threadedly connected. The brake lining (32) is rotatably connected to the rotating shaft (4). A fixing seat (61) connected to the brake lining (32) is fixedly connected inside the fan (2) so as to drive the brake lining (32) to rotate when the fan (2) rotates. The friction plate (33) abuts against the surface of the brake lining (32) close to the threaded section (42). The spring plate (34) is arranged on the surface of the friction plate (33) away from the brake lining (32). The nut (35) is arranged on the surface of the spring plate (34) away from the friction plate (33). A first limiting surface (43) is arranged on the outer peripheral wall of the rotating shaft (4) along its own length direction. First limiting blocks (5) protruding from the inner walls of the friction plates (33) abut against the first limiting surface (43).
2. The electric fan according to claim 1, wherein: There are two rotating shafts (4) which respectively rotatably penetrate through both sides of the fan (2), and two corresponding fixing components (3) are respectively arranged on the two rotating shafts (4).
3. A electric fan according to claim 1, wherein: An arc surface (341) is arranged on the surface of the spring plate (34) close to the nut (35).
4. The electric fan according to claim 3, characterized in that: A friction plate (33) is also arranged between the spring plate (34) and the nut (35).
5. A kind of electric fan according to claim 1, characterized in that: The fixing seat (61) is provided with a fixing piece (6) sleeved on the installation section (41). Second limiting blocks (62) protruding from the surface of the fixing piece (6) close to the brake lining (32) are arranged. There are two second limiting blocks (62) which are arranged oppositely. A second limiting surface (321) for the second limiting blocks (62) to abut against is formed on the outer peripheral wall of the brake lining (32).
6. The electric fan according to claim 5, characterized in that: The fixing component (3) further includes a limiting piece (31) sleeved on the rotating shaft (4). The limiting piece (31) is arranged on the surface of the brake lining (32) away from the friction plate (33). First limiting blocks (5) protruding from the inner wall of the limiting piece (31) also abut against the first limiting surface (43). A third limiting block (311) protruding from the outer peripheral wall of the limiting piece (31) and a fourth limiting block (63) protruding from the outer peripheral wall of the fixing piece (6) for abutting against the third limiting block (311) are arranged.
7. The electric fan according to claim 6, characterized in that: A crack stopping groove (312) is arranged in the middle of the third limiting block (311).
8. The electric fan according to claim 1, characterized in that: The support frame (1) includes two first support rods (11) respectively arranged on both sides of the fan (2), two second support rods (12) respectively and fixedly connected to the two first support rods (11), and two third support rods (13). The two third support rods (13) are respectively arranged between the two first support rods (11) and the two second support rods (12). The rotating shaft (4) is arranged on the first support rod (11). Both the first support rod (11) and the second support rod (12) are inclined to the ground, and are arranged in an inverted V shape therebetween.
9. The electric fan according to claim 8, characterized in that: The support frame (1) further includes a fourth support rod (14) arranged between the two third support rods (13).
10. A electric fan according to claim 8, characterized in that: A groove (21) for the first support rod (11) to be embedded is formed on the surface of the fan (2) close to the first support rod (11).