Fan

Abstract

The fan comprises a bottom frame and a fan head, the fan head comprises a front shell, a fence net, an air outlet assembly and a rear shell rotationally installed on the bottom frame, the rear shell is provided with a containing groove, a plurality of supporting blocks and a plurality of clamping blocks are arranged on the inner wall of the containing groove in a protruding mode, and the distance between the clamping blocks and the bottom wall of the containing groove is larger than the distance between the supporting blocks and the bottom wall of the containing groove. The fence net is located in the containing groove and abuts against the supporting block, a containing space is defined by the fence net and part of the inner wall of the containing groove, the air outlet assembly is rotationally installed in the containing space, the front shell is of an annular structure, one end of the front shell is inserted into the containing groove and abuts against the fence net to the supporting block, and a plurality of clamping grooves are formed in the other end of the front shell. And the clamping blocks are respectively clamped in the clamping grooves. According to the fan, the front shell and the rear shell are detachably connected, the front shell and the fence net can be sequentially detached from the rear shell, so that the front shell, the fence net, the air outlet assembly and the rear shell can be cleaned conveniently, external tools are not needed in the whole detaching process, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric fan structures, in particular to a fan. Background Art

[0002] At present, electric fans, also called fans for short, are household appliances that use electric motors to drive the blades to rotate to accelerate the circulation of air. They are mainly used for cooling and ventilating the air. For offices and other office places, the space is often narrow and there is no condition to place a large floor fan. Therefore, it is more suitable to use a small fan with a smaller volume in the above-mentioned office occasions. The small fan can be placed on the desktop for use, or a hook can be set at the bottom of the small fan, and the small fan can be hung on a horizontal bar or rope through the hook. Of course, you can also pre-stick adhesive stickers on the wall, and the adhesive stickers are provided with slide rails. The bottom of the small fan is provided with a slide groove, and the small fan is slidably connected with the slide rail on the adhesive sticker through the upper slide groove, so that the small fan is suitable for use in a variety of occasions and will not take up too much space.

[0003] After a small fan has been used for a long time, dust will accumulate and it needs to be cleaned regularly. However, the mesh cover of this type of small fan is generally assembled with screws, which makes disassembly relatively troublesome. Tools are often needed to unscrew the screws to disassemble the mesh cover, which is time-consuming and labor-intensive. Utility Model Content

[0004] The utility model aims to provide a fan to solve the problem that the existing small fans will accumulate dust after being used for a long time and need to be cleaned regularly. The mesh cover of this small fan is generally assembled with screws, which makes disassembly relatively troublesome. Tools are often needed to unscrew the screws to disassemble the mesh cover, which is time-consuming and labor-intensive.

[0005] The utility model provides a fan, comprising:

[0006] chassis;

[0007] The fan head includes a front shell, a fence, an air outlet assembly and a rear shell rotatably mounted on the base frame, the rear shell is provided with a receiving groove, the inner wall of the receiving groove is convexly provided with a plurality of support blocks and a plurality of clamping blocks, the distance between the clamping block and the bottom wall of the receiving groove is greater than the distance between the support block and the bottom wall of the receiving groove, the fence is located in the receiving groove and abuts against the support block, the fence and part of the inner wall of the receiving groove are enclosed to form a storage space, the air outlet assembly is rotatably mounted in the storage space, the front shell is an annular structure, one end of the front shell is inserted into the receiving groove and presses the fence against the support block, the other end of the front shell is provided with a plurality of clamping slots, and each of the clamping blocks is respectively clamped in each of the clamping slots.

[0008] Furthermore, the fence includes a mesh plate and a plurality of arc-shaped plates, the arc-shaped plates are convexly arranged on a side of the mesh plate away from the air outlet assembly, the mesh plate is abutted against the support block, and the front shell is pressed against the arc-shaped plates.

[0009] Further, the front shell includes an annular cover plate, an annular side plate, multiple support plates and multiple annular enclosure plates, the annular side plate is connected to the inner wall of the annular cover plate, the support plate is protruding on the outer wall of the annular side plate, the annular enclosure plate is protruding on the side of the annular cover plate facing the air outlet assembly, the annular side plate, the support plate and the annular enclosure plate are all located in the accommodating groove, the support plate is provided with a first limiting groove, the arc plate is inserted in the first limiting groove, the annular cover plate abuts against the rear shell, and the end of the annular enclosure plate away from the annular cover plate is recessed with the "L"-shaped groove.

[0010] Furthermore, the inner wall of the accommodating groove is also provided with a plurality of protrusions arranged at intervals, and the protrusions are provided with second limiting grooves, and the annular enclosure plate is inserted into the second limiting grooves.

[0011] Furthermore, the plurality of arc-shaped plates, the plurality of support plates, the plurality of annular enclosure plates and the plurality of protrusions respectively enclose and form a circular structure.

[0012] Furthermore, the annular side plate and the inner side wall of the accommodating groove are both rounded rectangular structures.

[0013] Furthermore, the rear shell includes a shell, two pillars, a plurality of the support blocks and a plurality of the clamping blocks, the accommodating groove is provided on the shell, and the two pillars are respectively protruded at two ends of the outer wall of the shell;

[0014] The base frame comprises a base and two spaced-apart supporting arms, one end of the supporting arm is rotatably connected to the support column, and the other end is clamped to the base.

[0015] Further, the support arm includes a rotating cover, two fasteners and an arm shell connected to the base, the arm shell is provided with a accommodating bin and a guide hole extending from the inner wall of the accommodating bin to the outside of the arm shell, the rotating cover and the two fasteners are both located in the accommodating bin, the pillar is provided with two threaded holes, the rotating cover is provided with two first through holes, the pillar passes through the guide holes, the fastener passes through the first through holes and is connected to the threaded holes, the rotating cover is provided with a limit block, the inner wall of the accommodating bin is provided with a baffle, and when the fan head is rotated, the baffle can abut against the limit block.

[0016] Furthermore, the fan further comprises a controller and a rechargeable battery, and both the controller and the rechargeable battery are mounted on the base frame;

[0017] The air outlet assembly includes a head and fan blades, the head is mounted on the rear shell, the fan blades are rotatably mounted on the head, and the head and the rechargeable battery are both electrically connected to the controller.

[0018] Furthermore, the controller includes a main control panel, a front cover, a film and a display cover, the base frame is provided with an embedding slot, the main control panel includes a circuit board, at least one display light and at least one button, the display light and the button are both fixed on the circuit board, the circuit board is located in the embedding slot, the front cover is penetrated by at least one second through hole and at least one third through hole, the display light is located in the second through hole, the button is located in the third through hole, the film is installed on the front cover and covers each of the display lights, the display cover is rotatably installed on the front cover and covers the film and the button, the machine head, the rechargeable battery, the display light and the button are all electrically connected to the circuit board.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] One end of the front shell of the fan of the utility model is inserted into the accommodating groove of the rear shell and presses against the fence net, and the clamping block on the other end of the front shell is plug-connected with the clamping groove on the rear shell. The front shell and the rear shell are detachably connected, and the front shell and the fence net can be removed from the rear shell in turn to facilitate cleaning of the front shell, the fence net, the air outlet component and the rear shell. The entire disassembly process does not require the aid of external tools, which saves time and effort and is convenient and quick. The fan can be placed on a desktop for use, or it can be suspended on an external crossbar or rope through a hook at the bottom of the fan for use. An adhesive sticker can also be pre-attached to the wall, and a slide rail is provided on the adhesive sticker. A slide groove is provided at the bottom of the fan. The fan is slidably connected to the slide rail on the adhesive sticker through the slide groove on it, so that the fan is suitable for use in various occasions and does not take up too much space. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The structure of the fan provided by the embodiment of the utility model is schematically shown in FIG. Figure 1 ;

[0022] Figure 2 A cross-sectional view of a fan provided by an embodiment of the utility model Figure 1 ;

[0023] Figure 3 The structure of the fan provided by the embodiment of the utility model is schematically shown in FIG. Figure 2 ;

[0024] Figure 4 A cross-sectional view of a fan provided by an embodiment of the utility model Figure 2 ;

[0025] Figure 5The structure of the fan provided by the embodiment of the utility model is schematically shown in FIG. Figure 3 ;

[0026] Figure 6 The structure of the fan provided by the embodiment of the utility model is schematically shown in FIG. Figure 4 ;

[0027] Figure 7 An exploded view of a fan provided by an embodiment of the utility model;

[0028] Figure 8 A schematic diagram of the structure of the rear housing provided by an embodiment of the utility model;

[0029] Fig. 9 A schematic diagram of the structure of a fence provided by an embodiment of the utility model;

[0030] Fig.10 A schematic diagram of the structure of the front shell provided by an embodiment of the utility model;

[0031] Fig.11 A schematic structural diagram of a rotating cover provided in an embodiment of the utility model.

[0032] In the figure:

[0033] 10. chassis; 11. base; 111. snap-in groove; 112. seat body; 1121. groove; 113. bottom cover; 114. foot pad; 12. arm; 121. snap-in block; 122. rotating cover; 1221. first through hole; 1222. stopper; 1223. cover body; 1224. positioning plate; 123. arm shell; 1231. storage compartment; 1232. guide hole; 1233. first side shell; 1234. second side shell; 1235. storage chamber; 124. annular pad; 13. charging interface; 14. embedding groove; 20. fan head; 21. front shell; 211. annular cover plate; 212. annular side plate; 213. support plate; 2131. first stopper groove; 214. annular enclosure; 22. fence; 221. air outlet; 2 22. mesh plate; 223. curved plate; 23. air outlet assembly; 231. machine head; 2311. motor; 2312. bearing; 232. fan blade; 24. rear shell; 241. receiving slot; 2411. wiring slot; 242. support block; 243. block; 244. air inlet hole; 245. convex block; 2451. second limiting slot; 246. shell; 247. support column; 2471. threaded hole; 2472. waist-shaped slot; 25. storage space; 26. pattern cover; 27. wire cover; 30. controller; 31. main control board; 311. circuit board; 312. display light; 313. button; 32. front cover; 321. second perforation; 322. third perforation; 33. film; 34. display cover; 40. rechargeable battery; 50. hook. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0035] See also Figures 1 to 9 As shown, the embodiment of the utility model discloses a fan, including a base frame 10 and a fan head 20, the fan head 20 includes a front shell 21, a fence 22, an air outlet assembly 23 and a rear shell 24 rotatably mounted on the base frame 10, the rear shell 24 is provided with a receiving slot 241, the inner wall of the receiving slot 241 is convexly provided with a plurality of support blocks 242 arranged at intervals and a plurality of card blocks 243 arranged at intervals, the card blocks 243 are located at the notch position of the receiving slot 241, the distance between the card blocks 243 and the bottom wall of the receiving slot 241 is greater than the distance between the support blocks 242 and the bottom wall of the receiving slot 241, the fence 22 is located in the receiving slot 241 and between the card blocks 243 and the support blocks 242, the fence 22 is abutted against the support blocks 242, and the fence 22 and the receiving slot are in contact with each other. Part of the inner wall of the groove 241 encloses a storage space 25, and the rear shell 24 is penetrated by a plurality of air inlet holes 244 that are connected to the storage space 25. The air outlet assembly 23 is rotatably installed in the storage space 25, and the fence 22 is penetrated by a plurality of air outlet holes 221. The front shell 21 is an annular structure, and one end of the front shell 21 is inserted into the receiving groove 241 and presses the fence 22 on the support block 242. The other end of the front shell 21 is provided with a plurality of card slots, and each card block 243 is respectively clamped in each card slot. The air outlet assembly 23 will disperse the wind from the air outlet holes 221 and the annular front shell 21 in turn, and the front shell 21 and the rear shell 24 are detachably connected to facilitate the cleaning of the front shell 21, the fence 22, the air outlet assembly 23 and the rear shell 24.

[0036] The fence 22 includes a mesh plate 222 and a plurality of arc plates 223 arranged at intervals. The arc plates 223 are protruded on the side of the mesh plate 222 away from the air outlet assembly 23. The mesh plate 222 is abutted against the support block 242. The air outlet holes 221 are arranged on the mesh plate 222. The front shell 21 is pressed against the arc plates 223, thereby fixing the fence 22.

[0037] In some embodiments, the fan head 20 further includes a pattern cover 26, which is mounted on the mesh plate 222. The pattern cover 26 is used to cover the screws on the mesh plate 222 to make the fence 22 look better.

[0038] Please read further Figures 2 to 3 ,as well as Figures 7 to 11In this embodiment, the front shell 21 includes an annular cover plate 211, an annular side plate 212, a plurality of support plates 213 and a plurality of annular enclosure plates 214. The annular side plate 212 is connected to the inner wall of the annular cover plate 211, the support plate 213 is convexly arranged on the outer wall of the annular side plate 212, and the annular enclosure plate 214 is convexly arranged on the side of the annular cover plate 211 facing the air outlet component 23. The plurality of annular enclosure plates 214 are arranged at intervals around the outer periphery of the annular side plate 212. The annular side plate 212, the support plate 213 and the annular enclosure plate 214 are arranged at intervals around the outer periphery of the annular side plate 212. The annular enclosure 214 is located in the accommodating groove 241, the support plate 213 is provided with a first limiting groove 2131, the arc plate 223 is inserted in the first limiting groove 2131, the annular cover plate 211 is in contact with the rear shell 24, and the end of the annular enclosure 214 away from the annular cover plate 211 is recessed with the "L"-shaped groove. When the clamping block 243 is arranged corresponding to the groove, the clamping block 243 can be clamped in the groove by rotating the front shell 21, and the rotation range of the front shell 21 is 5 to 20 degrees.

[0039] In some embodiments, the inner wall of the accommodating groove 241 is also provided with a plurality of spaced protrusions 245, the protrusions 245 are provided with a second limiting groove 2451, and the annular enclosure plate 214 is inserted into the second limiting groove 2451 to further support the front shell 21, and the protrusions 245 and the support plates 213 are arranged in groups of two.

[0040] The outer contours of the annular side plate 212, the fence 22 and the inner wall of the accommodating groove 241 are all rounded rectangular structures, so as to be distinguished from the existing fan appearance. Multiple arc plates 223, multiple support plates 213, multiple annular enclosure plates 214 and multiple protrusions 245 are respectively enclosed to form a circular structure. The inner diameters of the circular structures enclosed by the above-mentioned components are different, but they are all concentric circles, and the circular structure is an irregular circular structure, so that the front shell 21 can rotate in a small range, thereby achieving snap-on connection.

[0041] In this embodiment, the rear shell 24 includes a shell body 246, two pillars 247, a plurality of the support blocks 242 and a plurality of the clamping blocks 243. The accommodating groove 241 is provided on the shell body 246. The two pillars 247 are respectively protruded at the two ends of the outer wall of the shell body 246. The two ends of the base frame 10 are respectively rotatably connected to the two pillars 247 to realize the installation of the rear shell 24 on the base frame 10.

[0042] The base frame 10 includes a base 11 and two spaced-apart support arms 12. Both ends of the base 11 are provided with snap-in grooves 111 respectively. The support arm 12 is protrudingly provided with a snap-in block 121. One end of the support arm 12 is rotatably connected to the support pillar 247, and the other end of the support arm 12 is snap-in connected to the snap-in groove 111 on the base 11 through the snap-in block 121.

[0043] The arm 12 includes a rotating cover 122, two fasteners and an arm shell 123 connected to the base 11. The arm shell 123 is provided with a accommodating chamber 1231 and a guide hole 1232 which penetrates from the inner wall of the accommodating chamber 1231 to the outside of the arm shell 123. The rotating cover 122 and the two fasteners are both located in the accommodating chamber 1231. The pillar 247 is provided with two threaded holes 2471. The rotating cover 122 is provided with two first through holes 1221. The pillar 247 passes through the guide holes 1232. The fastener passes through the first through holes 1221 and is connected with the threaded holes 2471, thereby fastening the rotating cover 122 to the rear shell 24. The rotating cover 122 is provided with a limit block 1222, and the inner wall of the accommodating chamber 1231 is provided with a baffle. When the fan head 20 is rotated, the rotating cover 122 rotates together with the rear shell 24 on the fan head 20 so that the baffle can abut against the limit block 1222 to limit the rotation range of the fan head 20.

[0044] In some embodiments, the support arm 12 also includes an annular pad 124 made of silicone material, the annular pad 124 is located in the accommodating chamber 1231, the annular pad 124 is sleeved on the pillar 247, the annular pad 124 is clamped between the rotating cover 122 and the arm shell 123, and the annular pad 124 is used to reduce the buffering force between the rotating cover 122 and the arm shell 123.

[0045] The arm shell 123 includes a first side shell 1233 and a second side shell 1234. The first side shell 1233 is provided with a accommodating cavity 1235 and the guide hole 1232 connected to the accommodating cavity 1235. The baffle and the clamping block 121 are both provided on the first side shell 1233. The second side shell 1234 is connected to the first side shell 1233 and encloses the inner wall of the accommodating cavity 1235 to form the accommodating bin 1231.

[0046] The rotating cover 122 includes a cover body 1223, a limit block 1222 protruding from the edge of the cover body 1223, and two positioning plates 1224 arranged opposite to each other. The support column 247 is also provided with a waist-shaped groove 2472, and the two positioning plates 1224 are respectively located at the two ends of the waist-shaped groove 2472. The first through hole 1221 is provided on the cover body 1223.

[0047] In this embodiment, the fan also includes a controller 30 and a rechargeable battery 40. A charging interface 13 is provided on the outer wall of the base frame 10. The controller 30 and the rechargeable battery 40 are both installed on the base frame 10. The charging interface 13, the air outlet component 23 and the rechargeable battery 40 are all electrically connected to the controller 30. The rechargeable battery 40 can provide power to the air outlet component 23.

[0048] The air outlet assembly 23 includes a head 231 and a fan blade 232. The head 231 is mounted on the rear shell 24. The fan blade 232 is rotatably mounted on the head 231. The head 231 and the rechargeable battery 40 are both electrically connected to the controller 30. The head 231 is used to drive the fan blade 232 to rotate.

[0049] In some embodiments, the fan head 20 also includes a wire cover 27, the machine head 231 includes a motor 2311 and a bearing 2312, the motor 2311 is installed on the rear shell 24, the fan blades 232 are installed on the motor 2311 through the bearing 2312, the inner wall of the accommodating groove 241 is provided with a wiring groove 2411, the motor 2311 is electrically connected to the controller 30 through a cable, the cable is located in the wiring groove 2411, the wire cover 27 is installed on the rear shell 24 and covers the wiring groove 2411, the fan head 20 can rotate relative to the base frame 10, but not 360 degrees, and has a limit to prevent the cable on the motor 2311 from being twisted off.

[0050] The controller 30 includes a main control board 31, a front cover 32, a film 33 and a display cover 34. The bottom frame 10 is also provided with an embedding slot 14. The main control board 31 includes a circuit board 311, at least one display light 312 and at least one button 313. The display light 312 and the button 313 are both fixed on the circuit board 311. The circuit board 311 is located in the embedding slot 14. The front cover 32 is penetrated by at least one second through hole 321 and at least one third through hole 322. The display light 312 is located in the second through hole 321. The button 313 is fixed on the circuit board 311. The circuit board 311 is located in the embedding slot 14. The button 313 is located in the third through-hole 322, the film 33 is installed on the front cover 32 and covers each display light 312, the film 33 and the circuit board 311 are respectively attached to the front and rear sides of the front cover 32, the film 33 can enhance the visual effect of each display light 312, the button 313 can be pressed by hand, the display cover 34 is rotatably installed on the front cover 32 and covers the film 33 and the button 313, the machine head 231, the rechargeable battery 40, the display light 312 and the button 313 are all electrically connected to the circuit board 311.

[0051] The base 11 includes a base body 112, a bottom cover 113 and two foot pads 114. The bottom of the base body 112 is provided with a groove 1121, and the rechargeable battery 40 is installed in the groove 1121. The embedding groove 14 is provided on the side of the base body 112. The bottom cover 113 is installed at the bottom of the base body 112 and covers the groove 1121. The bottom cover 113 and the base body 112 are enclosed to form the two said snap-in grooves 111, and the two foot pads 114 are both installed at the bottom of the bottom cover 113.

[0052] In some embodiments, the fan further includes a hook 50 , which is installed on the bottom of the base 11 . The hook 50 is suspended in the air, and the fan can be hung on an external crossbar or rope through the hook 50 .

[0053] In some embodiments, the fan also includes an adhesive sticker, which can be attached to the wall. The adhesive sticker is provided with a slide rail, and the bottom cover 113 is provided with a slide groove that matches the slide rail. The fan is slidably engaged with the slide rail on the adhesive sticker through the slide groove to reduce the fan's footprint. Of course, the fan can be placed on a desktop to adapt to a variety of scenarios.

[0054] To sum up, one end of the front shell 21 of the fan of the utility model is inserted into the accommodating groove 241 of the rear shell 24 and presses against the fence 22, and the block 243 on the other end of the front shell 21 is plug-connected with the slot on the rear shell 24. The front shell 21 and the rear shell 24 are detachably connected. The front shell 21 and the fence 22 can be removed from the rear shell 24 in turn to facilitate cleaning of the front shell 21, the fence 22, the air outlet assembly 23 and the rear shell 24. The entire disassembly process does not require the aid of external tools, which saves time and effort and is convenient and quick.

[0055] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A fan, characterized in that: include: chassis; The fan head includes a front shell, a fence, an air outlet assembly and a rear shell rotatably mounted on the base frame, the rear shell is provided with a receiving groove, the inner wall of the receiving groove is convexly provided with a plurality of support blocks and a plurality of clamping blocks, the distance between the clamping block and the bottom wall of the receiving groove is greater than the distance between the support block and the bottom wall of the receiving groove, the fence is located in the receiving groove and abuts against the support block, the fence and part of the inner wall of the receiving groove are enclosed to form a storage space, the air outlet assembly is rotatably mounted in the storage space, the front shell is an annular structure, one end of the front shell is inserted into the receiving groove and presses the fence against the support block, the other end of the front shell is provided with a plurality of clamping slots, and each of the clamping blocks is respectively clamped in each of the clamping slots.

2. The fan according to claim 1, characterized in that The fence includes a mesh plate and a plurality of arc plates, wherein the arc plate is convexly arranged on a side of the mesh plate away from the air outlet assembly, the mesh plate is in contact with the support block, and the front shell is pressed against the arc plate.

3. The fan according to claim 2, characterized in that: The front shell includes an annular cover plate, an annular side plate, multiple support plates and multiple annular enclosure plates, the annular side plate is connected to the inner wall of the annular cover plate, the support plate is protruding on the outer wall of the annular side plate, the annular enclosure plate is protruding on the side of the annular cover plate facing the air outlet assembly, the annular side plate, the support plate and the annular enclosure plate are all located in the accommodating groove, the support plate is provided with a first limiting groove, the arc plate is inserted in the first limiting groove, the annular cover plate is abutted against the rear shell, and the end of the annular enclosure plate away from the annular cover plate is recessed with the "L"-shaped groove.

4. The fan according to claim 3, characterized in that: The inner wall of the accommodating groove is also provided with a plurality of protrusions arranged at intervals, and the protrusions are provided with second limiting grooves, and the annular enclosure plate is inserted into the second limiting grooves.

5. The fan according to claim 4, characterized in that: The plurality of arc-shaped plates, the plurality of support plates, the plurality of annular enclosure plates and the plurality of protrusions are respectively combined to form a circular structure.

6. The fan according to claim 3, characterized in that: The annular side plate and the inner side wall of the accommodating groove are both rounded rectangular structures.

7. The fan according to claim 1, characterized in that: The rear shell includes a shell, two pillars, a plurality of support blocks and a plurality of clamping blocks, the receiving groove is arranged on the shell, and the two pillars are respectively protruded at two ends of the outer wall of the shell; The base frame comprises a base and two spaced-apart supporting arms, one end of the supporting arm is rotatably connected to the support column, and the other end is clamped to the base.

8. The fan according to claim 7, characterized in that: The support arm includes a rotating cover, two fasteners and an arm shell connected to the base, the arm shell is provided with a storage bin and a guide hole extending from the inner wall of the storage bin to the outside of the arm shell, the rotating cover and the two fasteners are both located in the storage bin, the pillar is provided with two threaded holes, the rotating cover is provided with two first through holes, the pillar passes through the guide holes, the fastener passes through the first through holes and is connected to the threaded holes, the rotating cover is provided with a limit block, the inner wall of the storage bin is provided with a baffle, and when the fan head is rotated, the baffle can abut against the limit block.

9. The fan according to claim 1, characterized in that: The fan further comprises a controller and a rechargeable battery, wherein the controller and the rechargeable battery are both mounted on the base frame; The air outlet assembly includes a head and fan blades, the head is mounted on the rear shell, the fan blades are rotatably mounted on the head, and the head and the rechargeable battery are both electrically connected to the controller.

10. The fan according to claim 9, characterized in that The controller includes a main control panel, a front cover, a film and a display cover. The base frame is provided with an embedding groove. The main control panel includes a circuit board, at least one display light and at least one button. The display light and the button are both fixed on the circuit board. The circuit board is located in the embedding groove. The front cover is penetrated by at least one second through hole and at least one third through hole. The display light is located in the second through hole, and the button is located in the third through hole. The film is installed on the front cover and covers each of the display lights. The display cover is rotatably installed on the front cover and covers the film and the buttons. The machine head, the rechargeable battery, the display light and the button are all electrically connected to the circuit board.

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