Multipurpose fan

Abstract

The invention relates to a multipurpose fan which comprises a fan body, a rechargeable battery pack detachably connected with the fan body and a plurality of sections of supporting rods detachably connected with the connecting position of the fan body in the using state, and the ends of the multiple sections of supporting rods are detachably connected. The tail end of one section of the supporting rod at the bottom end is detachably connected with a base, the power adapter is detachably and electrically connected with the power supply end of the fan body, and in the storage state, the multiple sections of supporting rods, the rechargeable battery pack and the power adapter in the disassembly state are contained in a cavity of the base. A cavity is formed in the base, a plurality of first limiting pieces are arranged in the cavity to isolate the multiple sections of supporting rods, the rechargeable battery pack and the power adapter, and the base is covered with a cover body corresponding to the cavity. According to the multi-purpose fan disclosed by the invention, the multiple sections of supporting rods, the rechargeable battery pack and the power adapter can be detached and stored in the cavity of the base, so that the multi-purpose fan is convenient to store and carry.

Description

Technical Field

[0001] The invention relates to the field of electrical fans, and in particular to a multi-purpose fan. Background Art

[0002] In the existing field of electrical fans, especially fans used outdoors, there are usually some technical challenges and inconveniences in use. Such fans often require multiple sections of support rods to be connected to provide sufficient height and coverage to meet the needs of outdoor environments. However, this design brings some defects and inconveniences. When using fans with considerable height outdoors, it is necessary to disassemble components such as multiple sections of support rods, rechargeable battery packs and power adapters for transportation and carrying. These components are relatively scattered, which not only increases the workload of users during assembly and disassembly, but also increases the risk of losing or damaging components. Due to the dispersion of components, users need extra time and energy to manage these components when using them outdoors, which undoubtedly reduces the convenience of use. Existing fan designs often lack effective storage solutions. When not in use, users need to store components such as multiple sections of support rods, battery packs and power adapters separately, which not only takes up additional storage space, but also complicates the overall management of the fan.

[0003] In addition, current fans usually need to be connected to a power cord to work, which limits the use range and portability of the fan. For example, the fan cannot be conveniently used outdoors. In order to solve this problem, fans with built-in batteries have appeared on the market. They can be used without a power cord, providing more convenience for users. However, there are some technical problems with existing fans with built-in batteries. First, the non-removable nature of the battery means that once the battery life expires or is damaged, the entire fan needs to be replaced, which not only increases the financial burden on users, but is also not conducive to environmental protection. Secondly, the design of fixed batteries also limits the maintenance and upgrade of the fan, because battery replacement and maintenance require professional technical support. Summary of the invention

[0004] The present invention provides a multi-purpose fan, aiming to solve at least one of the technical problems existing in the prior art.

[0005] The technical solution of the present invention is a multi-purpose fan, which, when in use, includes: a fan body, the fan body is provided with a mounting panel, a rechargeable battery pack detachably connected to the mounting panel, the mounting panel is provided with a first power-on interface, the rechargeable battery pack includes a second power-on interface, a plurality of support rods detachably connected to the connection with the fan body, the ends between the plurality of support rods are detachably connected, the end of the support rod of the bottom section is detachably connected to a base, a power adapter detachably and electrically connected to the power supply end of the fan body, in the storage state, the plurality of support rods in the detached state, the rechargeable battery pack and the power adapter are accommodated in a cavity of the base, a plurality of first limit members are provided in the cavity to isolate the plurality of support rods, the rechargeable battery pack and the power adapter, wherein the corresponding cavity on the base is covered with a cover, and the second power-on interface is electrically connected to the first power-on interface.

[0006] Furthermore, a first step is provided on the upper edge of the base, and a second step cooperating with the first step is provided on the lower edge of the cover, wherein the upper edge of the base and the lower edge of the cover are snap-connected via a plurality of first fasteners.

[0007] Furthermore, a sliding lock structure is provided at the inner side of the cover body, and the sliding lock structure includes a slideway, a slider arranged on the slideway and an elastic member, two ends of the elastic member are respectively connected to the first end of the slideway and the first end of the slider, and the second end of the slider is respectively provided with a first limiting portion and a pressing portion, and the pressing portion is exposed to the outside of the cover body, and a second limiting portion is provided on the lower side edge of the cover body, wherein, when the cover body and the base rotate up and down, the second limiting portion overcomes the resistance of the elastic member after contacting from one side of the first limiting portion, and the slider slides in the compression direction of the elastic member, and the second limiting portion reaches the other side of the first limiting portion, and at the same time, the upper side edge of the base and the lower side edge of the cover body are engaged and connected through the first snap member, and the cover body and the base are in a locked state.

[0008] Furthermore, the sliding lock structures cooperating with the base are respectively provided on both sides of the cover body.

[0009] Furthermore, the fan body includes a fan head and a mounting base connected to the back of the fan head by a hinge. When in use, the rechargeable battery pack is connected to the mounting panel by a snap-fit ​​structure. The bottom end of the mounting base is threadedly connected to a section of the support rod at the top, multiple sections of the support rod are threadedly connected to each other, and a section of the support rod at the bottom is threadedly connected to the mounting hole of the base. The snap-fit ​​structure includes a card interface provided on the mounting panel and a card block provided on the rechargeable battery pack. The card block is integrally connected with a pressing part. The snap-fit ​​structure includes a card interface provided on the mounting panel and a card block provided on the rechargeable battery pack. The card block is integrally connected with a pressing part. The slideway inside the rechargeable battery pack, the limiting hole and the elastic member provided on the rechargeable battery pack, the card block passes through the limiting hole, the first end of the pressing part is exposed outside the rechargeable battery pack, the main body of the pressing part is arranged on the slideway, the two ends of the elastic member are respectively connected with the second end of the pressing part and the end of the slideway, wherein the card block is correspondingly engaged with the card interface, and when the rechargeable battery pack is assembled or disassembled with the installation panel, the pressing part is pressed to overcome the resistance of the elastic member and move on the slideway, and the pressing part is linked to the card block to engage or disassemble with the card interface.

[0010] Furthermore, the card interfaces are arranged at intervals in a triangular shape on the mounting panel, the card blocks are symmetrically arranged on both sides of the rechargeable battery pack, and the pressing portions are exposed on the outer edge of the rechargeable battery pack.

[0011] Furthermore, the first power-on interface is arranged on the groove of the mounting panel, and the second power-on interface is arranged on the protrusion of the retracted battery pack, wherein the shape of the protrusion matches the shape of the groove, and a supporting part is provided on the mounting panel. When the battery pack is assembled with the mounting panel, the bottom surface of the battery pack part and the supporting part are arranged correspondingly up and down.

[0012] Furthermore, the rechargeable battery pack includes a shell, a battery unit arranged inside the shell, and a panel covering the battery unit, the panel is fixedly connected to the shell by bolts, the battery unit is electrically connected to the second power interface, and a first limiter is provided inside the shell to limit the battery unit, wherein the panel and the nut of the bolt are arranged corresponding to the mounting panel.

[0013] Furthermore, the base is provided with reinforcing ribs extending in multiple directions, some of the reinforcing ribs are connected to the first limiting member, the middle of the base to one side outer edge respectively accommodates part of the support rod and the rechargeable battery pack, and the middle of the base to the other side outer edge respectively accommodates part of the support rod and the power adapter.

[0014] Furthermore, in the storage state, the support rod with a smaller tube diameter is sleeved inside the support rod with a larger tube diameter, and the first limiting members arranged on both sides of the main body of the support rod are provided with second fasteners that are engaged with the surface of the support rod, and the inner bottom wall of the cover body is provided with a second limiting member. In the storage state, the second limiting member is used to limit the up and down movement of the support rod, the rechargeable battery pack and the power adapter in the cavity, and the base is provided with reinforcing ribs running in multiple directions, and some of the reinforcing ribs are connected to the first limiting member.

[0015] The beneficial effects of the present invention include:

[0016] When the multi-purpose fan is not in use, the multi-section support rods, rechargeable battery pack, power adapter and other components can be disassembled and stored in the cavity of the base, making the entire fan system more compact and easy to store and carry, especially suitable for fans with multi-section support rods; by storing most of the components in the base, the fan after storage only has two important components, the fan body and the base, reducing the risk of loss when the components are stored in separate locations and improving the convenience of management; in addition, the detachable connection design between the fan body and the components allows users to quickly assemble and disassemble the fan as needed, improving convenience of use.

[0017] In addition, the fan is provided with a detachable snap-connected rechargeable battery pack, so the fan can work without an external power supply, thereby improving the portability of the fan and allowing users to use the fan outdoors or in places without a power socket; users can easily replace the battery pack without replacing the entire fan, reducing maintenance costs and the user's financial burden; in addition, the card block with a pressing part, the slide and the elastic part constitute a compact rechargeable battery pack disassembly mechanism, and users can easily disassemble and install the rechargeable battery pack by a pressing operation.

[0018] In addition, additional aspects and advantages of the present invention will be given in part in the following description, and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 3 is a detailed schematic diagram of the interior of the base in the storage state according to an embodiment of the present invention.

[0020] Figure 2 1 is an exploded schematic diagram of the base and the cover in the storage state according to an embodiment of the present invention.

[0021] Figure 3 2 is a schematic longitudinal section view of the base in the storage state according to an embodiment of the present invention.

[0022] Figure 4 3 is a detailed schematic diagram of the interior of the cover body in the storage state according to an embodiment of the present invention.

[0023] Figure 5 4 is a general schematic diagram of a fan in use according to an embodiment of the present invention.

[0024] Figure 6 4 is a schematic longitudinal section diagram of a fan in use according to an embodiment of the present invention.

[0025] Figure 7 2 is an exploded schematic diagram of a multi-purpose fan according to an embodiment of the present invention.

[0026] Figure 8 is a general schematic diagram of a rechargeable battery pack according to an embodiment of the present invention.

[0027] Fig. 9 Schematic diagram of the internal structure details of a rechargeable battery pack according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the present invention, so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other without conflict.

[0029] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature, or it may be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, top, bottom, etc. used in the present invention are only relative to the relative positional relationship of the components of the present invention in the drawings.

[0030] In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art. The terms used in this specification are only for describing specific embodiments, not for limiting the present invention. The term "and / or" used herein includes any combination of one or more related listed items.

[0031] It should be understood that, although the terms first, second, third, etc. may be used to describe various elements in the present disclosure, these elements should not be limited to these terms. These terms are only used to distinguish elements of the same type from each other. For example, without departing from the scope of the present disclosure, the first element may also be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0032] Reference Figures 1 to 9In some embodiments, a multi-purpose fan according to the present invention includes: a fan body 100, a rechargeable battery pack 200, a multi-section support rod 300, a base 500, a power adapter 400 and a cover 600.

[0033] Reference Figures 5 to 9 As shown, when in use, the fan comprises: a fan body 100, the fan body 100 is provided with a mounting panel 250, the fan body 100 comprises a fan head 110, and a mounting seat 120 connected to the back of the fan head 110 through a hinge. The fan head 110 is responsible for generating wind force, and the mounting seat 120 is used to connect the fan head 110 and the support rod 300. A rechargeable battery pack 200 detachably connected to the mounting panel 250, the rechargeable battery pack 200 is designed to be detachably connected to the back of the fan head 110 so as to supply power without using a power adapter 400. In addition, the detachably connected rechargeable battery pack 200 and the mounting panel 250 allow the user to easily replace the battery, thereby improving the portability and practicality of the fan. The rechargeable battery pack connected by the snap connection is connected to the fan body so that the battery pack can be quickly disassembled and replaced, which is convenient for users to maintain and upgrade the battery, and also reduces the cost of replacing the battery. The mounting panel 250 is provided with a first power interface 111, and the rechargeable battery pack 200 includes a second power interface 210, which is electrically connected to the first power interface 111, thereby realizing an electrical connection between the fan body and the battery pack, so that the fan can work without an external power supply, thereby improving the portability of the fan.

[0034] Continue to refer to Figures 5 and 6 As shown, a multi-section support rod 300 is detachably connected to the connection point with the fan body 100, the ends of the multi-section support rod 300 are detachably connected, the end of the bottom section of the support rod 300 is detachably connected to a base 500, and a power adapter 400 is detachably and electrically connected to the power supply end of the fan body 100.

[0035] Reference Figures 1 to 4 As shown, in the storage state, the multiple sections of the support rod 300, the rechargeable battery pack 200 and the power adapter 400 in the disassembled state are accommodated in the cavity of the base 500, and a plurality of first stoppers 530 are provided in the cavity to isolate the multiple sections of the support rod 300, the rechargeable battery pack 200 and the power adapter 400. The plurality of first stoppers 530 provided in the cavity of the base 500 are used to isolate and fix the stored components.

[0036] Reference Figures 1 to 2 structure Figure 4As shown, the corresponding cavity on the base 500 is covered with a cover 600, and the cover is used to limit the internal components of the base from loosening in the storage state, and is used to block external dust in the use state.

[0037] Reference Figure 1 Combination Figure 4 As shown, the upper side edge of the base 500 is provided with a first step 520, and the lower side edge of the cover 600 is provided with a second step 620 that cooperates with the first step 520, wherein the upper side edge of the base 500 and the lower side edge of the cover 600 are engaged and connected by a plurality of first fasteners 1000. Of course, the first fasteners 1000 can be assembled on the first step 520 and the second step 620, and the base 500 and the cover 600 are engaged and sealed in the upper and lower parts.

[0038] Reference Figures 1 to 4 As shown, a sliding lock structure 700 is provided on the inner side of the cover body 600, and the sliding lock structure 700 includes a slide 710, a slider 720 arranged on the slide 710, and an elastic member 730, the two ends of the elastic member 730 are respectively connected to the first end of the slide 710 and the first end of the slider 720, the second end of the slider 720 is respectively provided with a first limiting portion 721 and a pressing portion 722, and the pressing portion 722 is exposed to the outside of the cover body 600. The lower edge of the cover 600 is provided with a second limiting portion. When the cover 600 and the base 500 rotate upward and downward in coordination, the second limiting portion overcomes the resistance of the elastic member 730 after contacting from one side of the first limiting portion 721, and the slider 720 slides in the compression direction of the elastic member 730, and the second limiting portion reaches the other side of the first limiting portion 721. At the same time, the upper edge of the base 500 and the lower edge of the cover 600 are engaged and connected through the first buckle 1000, and the cover 600 and the base 500 are locked. When the cover 600 and the base 500 rotate in coordination, the sliding lock structure 700 ensures that the cover 600 and the base 500 are locked.

[0039] The user can operate the slide lock structure 700 by pressing 722. When the second limiting portion contacts the first limiting portion 721 and overcomes the resistance of the elastic member 730, the slider 720 slides to achieve the locking of the cover 600 and the base 500.

[0040] In some embodiments, the two sides of the cover body 600 are respectively provided with the sliding lock structure 700 that cooperates with the base 500, so that the box body and the base are locked through multiple snap structures and sliding lock structures, ensuring that when the fan is in the storage state, the internal components are not easy to break through the cover and leak out.

[0041] When in use, the rechargeable battery pack 200 is connected to the mounting panel 250 via a snap-fit ​​structure. Figures 5 to 6 As shown, the bottom end of the mounting base 120 is threadedly connected to a top section of the support rod 300, multiple sections of the support rod 300 are threadedly connected to each other, and a bottom section of the support rod 300 is threadedly connected to the mounting hole of the base 500, so that the user can adjust the height of the fan by increasing or decreasing the number of connected support rods.

[0042] Reference Figures 5 to 9 As shown, the snap-fit ​​structure includes a snap-fit ​​interface 310 disposed on the mounting panel 250 and a snap-fit ​​block 320 disposed on the rechargeable battery pack 200, and the snap-fit ​​block 320 is snap-fitted with the snap-fit ​​interface 310. The corresponding cooperation between the snap-fit ​​interface and the snap-fit ​​block enhances the connection stability between the battery pack and the mounting panel, and simplifies the process of disassembly and installation.

[0043] Continue to refer to Figures 5 to 9 As shown, the card block 320 is integrally connected with a pressing portion 321, and the engaging structure includes a slideway 330 arranged inside the rechargeable battery pack 200, a limiting hole 340 and an elastic member 350 provided on the rechargeable battery pack 200. The card block 320 passes through the limiting hole 340, and the first end of the pressing portion 321 is exposed outside the rechargeable battery pack 200. The main body of the pressing portion 321 is arranged on the slideway 330, and the two ends of the elastic member 350 are respectively connected to the second end of the pressing portion 321 and the end of the slideway 330. When the rechargeable battery pack 200 is assembled or disassembled with the mounting panel 250, the pressing portion 321 is pressed to overcome the resistance of the elastic member 350 and move on the slideway 330, and the pressing portion 321 is linked to the card block 320 to engage or disassemble with the card interface 310. The user can easily disassemble and install the battery pack by pressing, which improves the convenience of operation.

[0044] Reference Figures 5 to 9 As shown, the card interface 310 is arranged at intervals in a triangular shape on the upper side of the installation panel 250, the card blocks 320 are symmetrically arranged on both sides of the rechargeable battery pack 200, and the pressing portion 321 is exposed on the outer edge of the rechargeable battery pack 200. The three card blocks arranged at intervals in a triangular shape on the rechargeable battery pack are engaged with the card interface 310 on the installation panel 250, so that the three fixing points of the rechargeable battery pack are stably engaged on the installation panel and are not easy to loosen, thereby enhancing the connection stability between the battery pack and the installation panel. The user can also press the pressing portions 321 on both sides of the rechargeable battery pack with one hand to disassemble and assemble the battery pack, which is more convenient to operate.

[0045] Reference Figure 5 Combination Figures 7 to 9As shown, the first power interface 111 is arranged on the groove 112 of the installation panel 250, and the second power interface 210 is arranged on the protrusion 220 of the shrinkable rechargeable battery pack 200, and the shape of the protrusion 220 matches the shape of the groove 112. The user can accurately position the groove and the protrusion, and then cooperate with the above-mentioned multiple snap-in connection structures, so that the user can quickly install the rechargeable battery pack on the installation panel.

[0046] Reference Figure 5 As shown, the mounting panel 250 is provided with a supporting portion 113. Figure 5 The supporting part 113 is a part of the hinged part in the fan body. When the rechargeable battery pack 200 is assembled with the mounting panel 250, the bottom surface of the rechargeable battery pack 240 is arranged corresponding to the supporting part 113. The design of the supporting part provides a stable support for the assembly of the rechargeable battery pack 200, preventing the battery from being misplaced and falling to the ground during use, thereby damaging the rechargeable battery pack.

[0047] Reference Figure 5 Combination Figures 7 to 9 As shown, the rechargeable battery pack 200 includes a housing 230, a battery unit 240 disposed inside the housing 230, and a panel 250 covering the battery unit 240. The panel 250 is fixedly connected to the housing 230 by bolts, and the battery unit 240 is electrically connected to the second power supply interface 210. The structure of the housing, the battery unit, and the panel makes the assembly and maintenance of the rechargeable battery pack more convenient, and the bolt connection provides a firm fixation between the battery unit and the housing, ensuring the durability and stability of the battery pack.

[0048] Reference Figure 5 Combination Figures 7 to 9 As shown, the panel 250 and the nut of the bolt are arranged corresponding to the mounting panel 250, so that the bolt is not exposed on the surface of the shell, maintaining the aesthetics of the fan body. Moreover, the user can easily remove the nut to replace the exhausted battery part without replacing the entire rechargeable battery pack, making the rechargeable battery pack maintenance more convenient.

[0049] Reference Fig. 9 As shown, a first limiting member 260 is disposed inside the housing 230 to limit the battery portion 240, thereby effectively preventing the battery portion from shifting inside the housing.

[0050] Reference Figure 2 As shown, in the storage state, the support rod 300 with a smaller diameter is sleeved inside the support rod 300 with a larger diameter, and the first stopper 530 disposed on both sides of the main body of the support rod 300 is provided with a second fastener 511 that is engaged with the surface of the support rod 300. The support rod 300 is fixed by the second fastener 511 on the first stopper 530.

[0051] Reference Figure 6 As shown, a second limiter 610 is provided on the inner bottom wall of the cover body 600. In the storage state, the second limiter 610 is used to limit the upward and downward movement of the support rod 300, the rechargeable battery pack 200 and the power adapter 400 in the cavity.

[0052] Reference Figure 2 As shown, the base 500 is provided with reinforcing ribs 550 extending in multiple directions, and some of the reinforcing ribs 550 are connected to the first limiting member 530 to enhance the structural stability of the base 500 .

[0053] Reference Figure 1 Combination Figure 2 As shown, the middle of the base 500 to one side outer edge respectively accommodates part of the support rod 300 and the rechargeable battery pack 200, and the middle of the base 500 to the other side outer edge respectively accommodates part of the support rod 300 and the power adapter 400. This layout makes the various components more compact when stored and easy to carry.

[0054] Reference Figure 6 As shown, a groove 540 is provided at the bottom of the base 500 for the user to hold it conveniently.

[0055] The above is only a preferred embodiment of the present invention. The present invention is not limited to the above implementation. As long as the technical effect of the present invention is achieved by the same means, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the scope of protection of the present disclosure. All should belong to the protection scope of the present invention. Within the protection scope of the present invention, its technical scheme and / or implementation method can have various modifications and changes.

Claims

1. A multi-purpose fan, characterized in that: When in use, the fan comprises: a fan body (100), the fan body (100) being provided with a mounting panel (250), a rechargeable battery pack (200) detachably connected to the mounting panel (250), the mounting panel (250) being provided with a first power-on interface (111), the rechargeable battery pack (200) comprising a second power-on interface (210), a plurality of support rods (300) detachably connected to the connection with the fan body (100), the ends of the plurality of support rods (300) being detachably connected, the end of the bottom section of the support rod (300) being detachably connected to a base (500), and a power adapter (400) detachably and electrically connected to the power supply end of the fan body (100). In the storage state, the multiple sections of the support rod (300), the rechargeable battery pack (200) and the power adapter (400) in the disassembled state are accommodated in the cavity of the base (500), and a plurality of first limiting members (530) are provided in the cavity to isolate the multiple sections of the support rod (300), the rechargeable battery pack (200) and the power adapter (400). The corresponding cavity on the base (500) is covered with a cover (600), and the second power interface (210) is electrically connected to the first power interface (111).

2. The multi-purpose fan according to claim 1, characterized in that: A first step (520) is provided on the upper side of the base (500). The lower side edge of the cover body (600) is provided with a second step (620) that cooperates with the first step (520). The upper edge of the base (500) and the lower edge of the cover (600) are snap-connected via a plurality of first snap fasteners (1000).

3. The multi-purpose fan according to claim 2, characterized in that: The inner side of the cover body (600) is provided with a sliding lock structure (700), and the sliding lock structure (700) includes a slideway (710), a slider (720) arranged on the slideway (710), and an elastic member (730), the two ends of the elastic member (730) are respectively connected to the first end of the slideway (710) and the first end of the slider (720), and the second end of the slider (720) is respectively provided with a first limiting portion (721) and a pressing portion (722), and the pressing portion (722) is exposed outside the cover body (600). A second limiting portion is provided on the lower edge of the cover body (600). Among them, when the cover body (600) and the base (500) rotate up and down in coordination, the second limiting part overcomes the resistance of the elastic member (730) after contacting from one side of the first limiting part (721), and the slider (720) slides in the compression direction of the elastic member (730), and the second limiting part reaches the other side of the first limiting part (721). At the same time, the upper edge of the base (500) and the lower edge of the cover body (600) are engaged and connected through the first snap member (1000), and the cover body (600) and the base (500) are in a locked state.

4. The multi-purpose fan according to claim 3, characterized in that: The sliding lock structures (700) that cooperate with the base (500) are respectively provided on both sides of the cover body (600).

5. The multi-purpose fan according to claim 1, characterized in that: The fan body (100) comprises a fan head (110) and a mounting seat (120) connected to the back side of the fan head (110) via a hinge. When in use, the rechargeable battery pack (200) is connected to the mounting panel (250) via a snap-fit ​​structure, the bottom end of the mounting seat (120) is threadedly connected to a top section of the support rod (300), multiple sections of the support rod (300) are threadedly connected to each other, and the bottom section of the support rod (300) is threadedly connected to the mounting hole of the base (500). The engaging structure comprises a card interface (310) arranged on the installation panel (250) and a card block (320) arranged on the rechargeable battery pack (200); the card block (320) is integrally connected with a pressing portion (321); the engaging structure comprises a slideway (330) arranged inside the rechargeable battery pack (200), a limiting hole (340) provided on the rechargeable battery pack (200), and an elastic member (350); the card block (320) passes through the limiting hole (340); a first end of the pressing portion (321) is exposed outside the rechargeable battery pack (200); a main body of the pressing portion (321) is arranged on the slideway (330); two ends of the elastic member (350) are respectively connected to the second end of the pressing portion (321) and the end of the slideway (330); The card block (320) and the card interface (310) are correspondingly engaged and connected. When the rechargeable battery pack (200) and the installation panel (250) are assembled or disassembled, the pressing portion (321) is pressed to overcome the resistance of the elastic member (350) and move on the slideway (330). The pressing portion (321) links the card block (320) and the card interface (310) to engage or disassemble.

6. The multi-purpose fan according to claim 5, characterized in that: The card interfaces (310) are arranged at intervals in a triangular shape on the installation panel (250), the card blocks (320) are symmetrically arranged on both sides of the rechargeable battery pack (200), and the pressing portions (321) are exposed on the outer edge of the rechargeable battery pack (200).

7. The multi-purpose fan according to claim 1, characterized in that: The first power-on interface (111) is arranged on the groove (112) of the installation panel (250), and the second power-on interface (210) is arranged on the protruding portion (220) of the shrinkable rechargeable battery pack (200). The shape of the protrusion (220) matches the shape of the groove (112). The mounting panel (250) is provided with a supporting portion (113). When the rechargeable battery pack (200) and the mounting panel (250) are assembled together, the bottom surface of the rechargeable battery pack (240) and the supporting portion (113) are arranged in correspondence with each other.

8. The multi-purpose fan according to claim 1, characterized in that: The rechargeable battery pack (200) comprises a shell (230), a battery unit (240) arranged inside the shell (230), and a panel (250) covering the battery unit (240); the panel (250) is fixedly connected to the shell (230) by bolts; the battery unit (240) is electrically connected to the second power supply interface (210); a first limiting member (260) is provided inside the shell (230) to limit the battery unit (240); Wherein, the panel (250) and the nut of the bolt are arranged corresponding to the mounting panel (250).

9. The multi-purpose fan according to claim 1, characterized in that: The base (500) is provided with reinforcing ribs (550) extending in multiple directions, and some of the reinforcing ribs (550) are connected to the first limiting member (530). The middle of the base (500) to one outer edge respectively accommodates part of the support rod (300) and the rechargeable battery pack (200), and the middle of the base (500) to the other outer edge respectively accommodates part of the support rod (300) and the power adapter (400).

10. The multi-purpose fan according to claim 1, characterized in that: In the storage state, the support rod (300) with a smaller diameter is sleeved inside the support rod (300) with a larger diameter, and the first stopper (530) arranged on both sides of the main body of the support rod (300) is provided with a second buckle (511) that is snap-connected with the surface of the support rod (300). A second limiting member (610) is provided on the inner bottom wall of the cover body (600). In the storage state, the second limiting member (610) is used to limit the upward and downward movement of the support rod (300), the rechargeable battery pack (200) and the power adapter (400) in the cavity. The base (500) is provided with reinforcing ribs (550) extending in multiple directions, and some of the reinforcing ribs (550) are connected to the first limiting member (530).

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