Multifunctional humidifying desktop fan

Abstract

The present invention relates to household appliances, and discloses a multifunctional humidifying tabletop fan. When the locking guide groove (43) on the locking block (42) is completely slid along with the driving rod (16) to be connected to the locking guide rail (41) formed by splicing the first guide rail (19) and the second guide rail (20), the baffle plate (18) can be slid along with the driving rod (16) to one side of the power input interface (9) so that the power input interface (9) is exposed. The multifunctional humidifying tabletop fan of the present invention can provide outdoor power supply for the humidifying tabletop fan and improve the stability of the tabletop fan when in use by installing a power supply device (4) below the base (1) and connecting the power output interface (8) on the side of the shell (5) and the power input interface (9) on the side of the base (1) through a power line. The plug-in cooperation between the positioning column (10) and the positioning hole (11) has a simple structure and can effectively improve the accuracy of splicing the power supply device (4) and the base (1) of the tabletop fan. The buckling cooperation between the elastic buckle (12) and the positioning rod (13) can realize the rapid disassembly and assembly of the power supply device (4) and one side of the base (1).

Description

Technical Field

[0001] The invention relates to household appliances, in particular to a multifunctional humidifying desktop fan. Background Art

[0002] A fan is a device that generates wind and cools people on hot days. An electric fan is a device that generates airflow using electricity. When the fan inside is powered on, it rotates, converting mechanical energy into wind energy, which then turns into natural wind to achieve a cooling effect. As people's requirements for quality of life continue to improve, fans that are only used to blow air and cool down can no longer meet the needs of modern people, and their functions are relatively simple.

[0003] Especially in the northern regions of my country and places where air conditioners are used for a long time, the environment is very dry. If ordinary electric fans are used to blow air, the wind sent out is dry and hot, and it is difficult to achieve the purpose of cooling. Sometimes, in order to cool down faster, the wind speed of the electric fan is adjusted too much, which will give people a feeling of blowing and make the human body uncomfortable. In winter, the rooms in some areas are cold and dry, and the air needs to be humidified, so desktop fans with humidifier functions come into being. For example, the utility model patent with publication number CN212615448U discloses a similar humidifying desktop fan.

[0004] The existing humidifying desktop fan is mainly composed of a base, a fan body installed on the upper part of the base, and a humidifying component. A charging port is provided on the base for power supply. However, due to the limitation of the wall charging power supply mode, the use scenario of the traditional humidifying desktop fan can only be limited to indoors and cannot be taken outdoors for use, so there is still room for improvement. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a multifunctional humidifying desktop fan which can be taken outdoors for use, thereby increasing the scope of application.

[0006] In order to solve the above technical problems, the present invention is solved by the following technical solutions:

[0007] A multifunctional humidifying desktop fan comprises a base, a fan main body and a humidifying component arranged on the upper part of the base, the lower part of the base is detachably connected to a power supply device; the power supply device comprises a shell, a battery module and a power management module electrically connected to the battery module are installed in the shell, the power management module is electrically connected to a power output interface, and the power output interface is arranged on the side of the shell; a power input interface is arranged on the side of the base, and the power input interface and the power output interface are arranged on the same side; a plurality of positioning columns extend vertically from the upper side of the shell, and a plurality of positioning holes are provided on the lower side of the base for the plurality of positioning columns to be plugged in and positioned one by one; an elastic buckle is arranged on the side of the base away from the power input interface, and transverse positioning rods are arranged at intervals on the side of the shell corresponding to the elastic buckle for the elastic buckle to be buckled, and both ends of the positioning rod are connected The positioning block is fixed to the side of the shell; a driving guide rail is horizontally arranged on the outer side of the base and below the power input interface, and a driving rod is arranged along the length direction of the driving guide rail. The driving rod is provided with a driving guide groove that is slidably connected to the driving guide rail along the length direction, and the driving rod extends upward with a baffle plate for shielding the power input interface; the base is provided with a first transverse guide rail on the outer side corresponding to the driving guide rail and on the horizontal side of the driving guide rail, and the shell is provided with a second transverse guide rail on the outer side corresponding to the power output interface and below the first guide rail. When the shell is spliced ​​under the base, the first guide rail and the second guide rail are spliced ​​with each other to form a locking guide rail; a locking block is provided at one end of the driving rod close to the first guide rail, and a locking guide groove that is slidably connected to the locking guide rail is provided on the side of the locking block close to the base;

[0008] When the locking guide groove on the locking block is completely slid along with the driving rod and is connected to the locking guide rail formed by splicing the first guide rail and the second guide rail, the baffle plate can slide along with the driving rod to one side of the power input interface, so that the power input interface is exposed;

[0009] On the contrary, when the locking guide groove on the locking block completely detaches from the locking guide rail formed by splicing the first guide rail and the second guide rail along with the driving rod, the baffle plate can slide along with the driving rod to a position to block the power input interface to block the power input interface.

[0010] By adopting the above scheme, by installing a power supply device under the base, and connecting the power output interface on the side of the shell with the power input interface on the side of the base through a power cord, the humidifying desktop fan can be powered outdoors and the stability of the desktop fan can be improved during use. The plug-in fit between the positioning column and the positioning hole has a simple structure and can effectively improve the accuracy of the power supply device when spliced ​​with the base of the desktop fan. The snap fit between the elastic buckle and the positioning rod can realize the rapid disassembly and assembly of the power supply device and one side of the base. The sliding snap fit between the locking guide groove on the locking block and the locking guide rail formed by splicing the first guide rail and the second guide rail can effectively realize the rapid disassembly and assembly of the power supply device and the other side of the base. The baffle can slide laterally with the drive rod to cover or open the power input interface on the side of the base. In addition, the driving rod can be linked with the baffle plate and the locking block in the same direction. When the baffle plate is pushed open, the locking guide groove on the locking block can slide and engage with the locking guide rail formed by splicing the first guide rail and the second guide rail, so that the base and the power supply device cannot be separated. At this time, the power supply device supplies power to the base through the power cord, and the power cord will not be pulled due to the sudden separation of the power supply device and the base, thereby ensuring safety. On the contrary, when the power supply ends or the power supply device needs to be replaced, the power cord plugged into the power input interface needs to be removed first before the baffle plate can be moved back to the position facing the power input interface, which can not only block the power input interface, but also release the lock between the first guide rail and the second guide rail, so that the power supply device can be separated from the base, which is more user-friendly.

[0011] Preferably, a gripping piece is provided on the side of the driving rod away from the driving guide rail.

[0012] The above solution makes it more convenient for the user to push the driving rod.

[0013] Preferably, a first limit block is provided at one end of the driving guide rail away from the first guide rail to limit the sliding direction of the driving rod away from the first guide rail.

[0014] By adopting the above solution, the limiting effect of the first limiting block can effectively prevent the driving rod from being separated from the driving guide rail.

[0015] Preferably, a second limit block is provided at one end of the first guide rail and the second guide rail away from the driving guide rail to limit the sliding direction of the locking block away from the driving guide rail.

[0016] By adopting the above solution, the locking block will not be separated from the driving guide rail formed by splicing the first guide rail and the second guide rail due to excessive sliding distance during the process of locking the first guide rail and the second guide rail.

[0017] Preferably, a hook facing away from the power supply device is provided on one side of the baffle away from the locking block, a locking buckle is longitudinally slidably engaged on the hook to lock or unlock the lateral sliding of the baffle, and a trigger mechanism is provided on the locking buckle;

[0018] When the power supply device is fully installed under the base, the trigger mechanism drives the locking buckle to slide in a direction away from the power supply device to disengage from the hook; conversely, when the power supply device is not fully installed under the base, the trigger mechanism drives the locking buckle to slide in a direction close to the power supply device to engage with the hook.

[0019] By adopting the above solution, the baffle can only be opened when the power supply device is completely installed under the base, preventing the user from supplying power to the base when the power supply device is separated, further reducing the risk of pulling the power cord.

[0020] Preferably, the trigger mechanism includes a support rod vertically fixed below the locking buckle and a sleeve slidably sleeved on the support rod, the inner hole diameter of the sleeve is larger than the rod diameter of the support rod and a sliding gap is formed, the upper end port of the sleeve is extended with an upper baffle ring slidably sleeved on the support rod, the lower end port of the sleeve is extended with a lower baffle ring slidably sleeved on the support rod, the outer peripheral surface of the support rod is provided with an abutment ring at its lower end position, the lower end surface of the abutment ring abuts against the upper end surface of the lower baffle ring, a compression spring sleeved on the support rod is provided in the sliding gap, one end of the compression spring abuts against the lower end surface of the upper baffle ring, and the other end of the compression spring abuts against the upper end surface of the abutment ring; the trigger mechanism also includes a fixing seat arranged on the outer side wall of the shell and located directly below the locking buckle, and a ejector pin arranged on the upper side surface of the fixing seat and extending vertically upward;

[0021] When the power supply device is fully installed under the base, the ejector pin overcomes the elastic supporting force of the compression spring to push the support rod upward, thereby driving the locking buckle to slide upward and disengage from the hook; conversely, when the power supply device is detached from the base, the support rod can slide downward under the elastic force of the compression spring, thereby driving the locking buckle to slide toward the power supply device and engage with the hook.

[0022] By adopting the above scheme, the cooperation between the ejector pin and the support rod can effectively determine whether the power supply device is installed under the base. When the two are installed, the ejector pin can push the support rod upward, so that the support rod can overcome the elastic support force of the compression spring to push the locking buckle upward and disengage from the hook, thereby releasing the lateral locking of the baffle plate, so that the baffle plate can be opened; conversely, when the power supply device is separated from the base, the ejector pin can be separated from the support rod synchronously, so that the support rod can push the locking buckle downward and engage with the hook under the elastic force of the compression spring, thereby locking the baffle plate, so that the baffle plate cannot be opened.

[0023] Preferably, a push rod extends downward from the end of the support rod away from the locking buckle, and a bushing extends downward from the lower end of the sleeve and is slidably sleeved on the push rod, the inner wall of the bushing abuts against the outer wall of the push rod, and the length of the push rod is less than or equal to the axial length of the bushing; the outer diameter of the push pin is less than or equal to the inner diameter of the bushing.

[0024] By adopting the above solution, the lower end of the support rod is extended by the ejector rod, which can effectively reduce the effective extension length of the ejector pin, and the structure is more reasonable and beautiful. At the same time, the ejector pin will not be directly exposed to the outside, which prevents the user from directly pushing the support rod upward without the help of the ejector pin, increasing the difficulty and cost of the user directly unlocking the baffle, and further improving the safety of the power supply device when supplying power to the outside.

[0025] Preferably, a ball head is provided at the end of the ejector pin.

[0026] By adopting the above solution, the ball head has a guiding function, so that the ejector pin can be inserted into the bushing more easily, thereby improving the accuracy and convenience of the operation.

[0027] Preferably, the power management module is also electrically connected to a charging interface, and the charging interface is arranged on the side of the shell.

[0028] By adopting the above solution, the power supply device itself can be charged through the charging interface, thereby improving the battery life of the power supply device and increasing its scope of application.

[0029] The present invention has significant technical effects due to the adoption of the above technical solutions: by installing a power supply device under the base and connecting the power output interface on the side of the shell with the power input interface on the side of the base through a power cord, the humidifying desktop fan can be powered outdoors and the stability of the desktop fan can be improved during use. The plug-in fit between the positioning column and the positioning hole has a simple structure and can effectively improve the accuracy of the power supply device when spliced ​​with the base of the desktop fan. The snap fit between the elastic buckle and the positioning rod can realize the rapid disassembly and assembly of the power supply device and one side of the base. The sliding snap fit between the locking guide groove on the locking block and the locking guide rail formed by splicing the first guide rail and the second guide rail can effectively realize the rapid disassembly and assembly of the power supply device and the other side of the base. The baffle can slide laterally with the drive rod to block or open the power input interface on the side of the base. In addition, the driving rod can be linked with the baffle plate and the locking block in the same direction. When the baffle plate is pushed open, the locking guide groove on the locking block can slide and engage with the locking guide rail formed by splicing the first guide rail and the second guide rail, so that the base and the power supply device cannot be separated. At this time, the power supply device supplies power to the base through the power cord, and the power cord will not be pulled due to the sudden separation of the power supply device and the base, thereby ensuring safety. On the contrary, when the power supply ends or the power supply device needs to be replaced, the power cord plugged into the power input interface needs to be removed first before the baffle plate can be moved back to the position facing the power input interface, which can not only block the power input interface, but also release the lock between the first guide rail and the second guide rail, so that the power supply device can be separated from the base, which is more user-friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The structure of this embodiment is shown in FIG. Figure 1;

[0031] Figure 2 is an exploded view of the base in this embodiment;

[0032] Figure 3 is a circuit diagram of this embodiment;

[0033] Figure 4 The explosion of this embodiment Figure 1 ;

[0034] Figure 5 The explosion of this embodiment Figure 2 ;

[0035] Figure 6 The structure of this embodiment is shown in FIG. Figure 2 ;

[0036] Figure 7 for Figure 6 An enlarged schematic diagram of section A is shown;

[0037] Figure 8 The structure of this embodiment is shown in FIG. Figure 3 ;

[0038] Fig. 9 for Figure 8 An enlarged schematic diagram of portion B is shown;

[0039] Fig.10 The structure of this embodiment is shown in FIG. Figure 4 ;

[0040] Fig.11 for Figure 4 An enlarged schematic diagram of section C is shown;

[0041] Fig.12 for Figure 4 An enlarged schematic diagram of the D portion shown;

[0042] Fig.13 is a three-dimensional cross-sectional view of the trigger mechanism in this embodiment;

[0043] Fig.14 for Figure 1 An enlarged schematic diagram of section E is shown.

[0044] The parts indicated by the numbers in the above figures are as follows: 1. base; 2. fan body; 3. humidification component; 4. power supply device; 5. housing; 6. battery module; 7. power management module; 8. power output interface; 9. power input interface; 10. positioning column; 11. positioning hole; 12. elastic buckle; 13. positioning rod; 14. positioning block; 15. drive rail; 16. drive rod; 17. drive guide groove; 18. baffle plate; 19. first rail; 20. second rail Rail; 21. grip; 22. first limit block; 23. second limit block; 24. hook; 25. locking buckle; 26. trigger mechanism; 27. support rod; 28. sleeve; 29. ​​sliding interval; 30. upper baffle ring; 31. lower baffle ring; 32. abutment ring; 33. compression spring; 34. fixing seat; 35. ejector pin; 36. ejector rod; 37. bushing; 38. ball head; 39. charging port; 40. cover; 41. locking guide rail; 42. locking block; 43. locking guide groove. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0046] like Figures 1 to 5As shown, a multifunctional humidifying desktop fan disclosed in this embodiment includes a base 1, a fan body 2 and a humidifying component 3 arranged on the upper part of the base 1. The upper and lower end surfaces of the base 1 are both long waist-shaped, which not only makes the placement structure stable, but also has enough area to install the fan body 2 and the humidifying component 3. The lower part of the base 1 is detachably connected with a power supply device 4, which includes a shell 5. The upper and lower end surfaces of the shell 5 are also long waist-shaped, and its size is consistent with the upper and lower end surfaces of the base 1. A cover 40 is installed on the upper port of the shell 5 to facilitate the installation of components inside the shell 5. The cover 40 can be fixed to the upper port of the shell 5 by glue or screws (not shown), which belongs to common knowledge in the art and is not described here. A battery module 6 and a power management module 7 electrically connected to the battery module 6 are installed in the shell 5. The power management module 7 is electrically connected to a power output interface 8, and the power output interface 8 is arranged on the side of the shell 5. A power input interface 9 is arranged on the side of the base 1, and the power input interface 9 is arranged on the same side as the power output interface 8. In order to facilitate charging of the power supply device 4, the power management module 7 is also electrically connected to a charging interface 39, and the charging interface 39 is arranged on the side of the shell 5. Among them, the power management module 7 is welded on the circuit board, and the power output interface 8, the power input interface 9 and the charging interface 39 are preferably USB Type-C interfaces, so they have strong versatility and adaptability. In order to increase the accuracy and lateral stability of the power supply device 4 when installed on the base 1, four positioning columns 10 are vertically extended from the upper side of the shell 5, and the four positioning columns 10 are respectively arranged at the four corners of the upper end face of the shell 5. The lower side of the base 1 is provided with four positioning holes 11 for the four positioning columns 10 to be inserted and positioned one by one, and the four positioning holes 11 are respectively arranged at the four corners of the lower end face of the base 1.

[0047] like Figures 6 to 10As shown, in order to achieve longitudinal positioning between the base 1 and the housing 5, an elastic buckle 12 is provided on the side of the base 1 away from the power input interface 9, and a transverse positioning rod 13 is provided at intervals on the side of the housing 5 corresponding to the elastic buckle 12 for the elastic buckle 12 to buckle, and both ends of the positioning rod 13 are fixed to the side of the housing 5 through positioning blocks 14. A driving guide rail 15 is transversely provided on the outer side of the base 1 and below the power input interface 9, and a driving rod 16 is provided along the length direction of the driving guide rail 15, and a driving guide groove 17 is provided along the length direction of the driving rod 16 to be slidably engaged with the driving guide rail 15, wherein the cross-sections of the driving guide rail 15 and the driving guide groove 17 are both inverted trapezoidal, so as to improve the stability of the driving rod 16 when sliding along the driving guide rail 15. The driving rod 16 extends upward with a baffle plate 18 for shielding the power input interface 9. The base 1 corresponds to the outer side of the driving guide rail 15 and is provided with a transverse first guide rail 19 on the horizontal side of the driving guide rail 15. The shell 5 corresponds to the outer side of the power output interface 8 and is provided with a transverse second guide rail 20 below the first guide rail 19. When the shell 5 is spliced ​​under the base 1, the first guide rail 19 and the second guide rail 20 are spliced ​​together to form a locking guide rail 41. A locking block 42 is provided at one end of the driving rod 16 close to the first guide rail 19, and a locking guide groove 43 is provided on the side of the locking block 42 close to the base 1 to slide and engage with the locking guide rail 41. The cross-sections of the locking guide rail 41 and the locking guide groove 43 are both inverted trapezoidal, so as to improve the stability of the locking block 42 when sliding on the locking guide rail 41, and at the same time, the relative position between the first guide rail 19 and the second guide rail 20 can be locked to prevent the two from separating from each other.

[0048] like Figure 8 and Fig. 9 As shown, in order to facilitate the sliding of the driving rod 16 , a gripping member 21 is provided on the side of the driving rod 16 away from the driving guide rail 15 .

[0049] like Fig. 9 and Fig.12 As shown, in order to limit the lateral sliding position of the driving rod 16 on the driving guide rail 15, a first limit block 22 is provided at one end of the driving guide rail 15 away from the first guide rail 19 to limit the sliding direction of the driving rod 16 away from the first guide rail 19. A second limit block 23 is provided at one end of the first guide rail 19 and the second guide rail 20 away from the driving guide rail 15 to limit the sliding direction of the locking block 42 away from the driving guide rail 15.

[0050] like Figures 9 to 14As shown, in order to prevent the baffle plate 18 from being opened when the base 1 is separated from the shell 5, a hook 24 facing away from the power supply device 4 is provided on the side of the baffle plate 18 away from the locking block 42, and a locking buckle 25 is longitudinally slidably engaged with the hook 24 to lock or unlock the lateral sliding of the baffle plate 18, and a trigger mechanism 26 is provided on the locking buckle 25. In this embodiment, the trigger mechanism 26 includes a support rod 27 vertically fixed below the locking buckle 25 and a sleeve 28 slidably sleeved on the support rod 27, the inner hole diameter of the sleeve 28 is larger than the rod diameter of the support rod 27 and a sliding gap 29 is formed, an upper baffle ring 30 slidably sleeved on the support rod 27 is extended from the upper end of the sleeve 28, and a lower baffle ring 31 slidably sleeved on the support rod 27 is extended from the lower end of the sleeve 28, and an abutment ring 32 is provided on the outer peripheral surface of the support rod 27 and at its lower end position, and the abutment ring 32 is provided. The lower end surface of the housing 5 abuts against the upper end surface of the lower baffle ring 31, a compression spring 33 sleeved on the support rod 27 is arranged in the sliding interval 29, one end of the compression spring 33 abuts against the lower end surface of the upper baffle ring 30, and the other end of the compression spring 33 abuts against the upper end surface of the abutting ring 32; the trigger mechanism 26 also includes a fixing seat 34 arranged on the outer side wall of the housing 5 and located directly below the locking buckle 25, and a ejector pin 35 arranged on the upper side surface of the fixing seat 34 and extending vertically upward, and a ball head 38 is arranged at the end of the ejector pin 35.

[0051] like Fig.13 and Fig.14 As shown, in order to increase the difficulty for the user to push the support rod 27 upward by himself when the base 1 is separated from the housing 5, a push rod 36 extends downward from the end of the support rod 27 away from the locking buckle 25, and a bushing 37 slidably sleeved on the push rod 36 extends downward from the lower end of the sleeve 28, the inner side wall of the bushing 37 abuts against the outer side wall of the push rod 36, and the length of the push rod 36 is less than or equal to the axial length of the bushing 37. And the outer diameter of the ejector pin 35 is less than or equal to the inner diameter of the bushing 37.

[0052] The specific usage process is as follows:

[0053] When using the humidifying desktop fan, first install the housing 5 of the power supply device 4 under the base 1. During the installation process, the four positioning columns 10 on the upper end surface of the housing 5 need to be plugged into the four positioning holes 11 at the bottom of the base 1 one by one to achieve accurate positioning of the two and avoid lateral displacement of the relative position. At the same time, the elastic buckle 12 can be longitudinally buckled with the positioning rod 13 to complete the preliminary positioning between the power supply device 4 and the base 1. When the power supply device 4 is completely installed under the base 1, the ejector pin 35 is inserted into the bushing 37 and overcomes the elastic supporting force of the compression spring 33 to push the ejector rod 36 together with the support rod 27 upward to drive the locking buckle 25 to slide upward and disengage from the hook 24, thereby releasing the lateral locking of the baffle 18. At the same time, the first guide rail 19 and the second guide rail 20 are spliced ​​together to form a complete locking guide rail 41. At this time, the drive rod 16 can be slid toward the direction close to the locking guide rail 41 with the help of the gripping member 21, so that the baffle 18 and the locking block 42 are synchronously linked. When the locking guide groove 43 on the locking block 42 is completely slid along with the driving rod 16 and is connected to the locking guide rail 41 formed by the first guide rail 19 and the second guide rail 20, the baffle plate 18 can slide along with the driving rod 16 to the side of the power input interface 9, so that the power input interface 9 is exposed, and at the same time, the relative positions of the first guide rail 19 and the second guide rail 20 are locked, so that the base 1 and the shell 5 cannot be separated. At this time, the user can plug the adapted power cord (not shown) into the power output interface 8 and the power input interface 9 respectively, so as to supply power to the base 1 through the power supply device 4. During the power supply process using the power cord (not shown), due to the locking effect of the locking block 42, the power cord (not shown) can be effectively prevented from being pulled when the power supply device 4 is separated from the base 1, thereby ensuring the safety of power supply.

[0054] When charging is finished or the power supply device 4 needs to be replaced, the power cord needs to be removed from the power input interface 9 first so that the baffle 18 can be closed again. Then, the drive rod 16 is slid in the opposite direction with the help of the grip 21, so that the baffle 18 slides back to the position of covering the power input interface 9. At the same time, the locking guide groove 43 on the locking block 42 is completely separated from the locking guide rail 41 formed by the first guide rail 19 and the second guide rail 20 as the drive rod 16 is completely separated to release the longitudinal lock between the first guide rail 19 and the second guide rail 20, so that the power supply device 4 can be separated from the base 1. During the separation process, the elastic buckle 12 needs to be pushed inward first to release the lock between the elastic buckle 12 and the positioning rod 13, and then the power supply device 4 can be removed from the base 1 along the length direction of the positioning column 10.

[0055] When the power supply device 4 is separated from the base 1, the ejector pin 35 is pulled out from the bushing 37 to release the support of the ejector rod 36. At this time, the support rod 27 and the ejector rod 36 can slide downward under the elastic force of the compression spring 33 to drive the locking buckle 25 to slide toward the power supply device 4 and engage with the hook 24, thereby re-locking the lateral position of the baffle 18 to prevent the baffle 18 from being opened when the power supply device 4 is separated from the base 1.

Claims

1. A multifunctional humidifying desktop fan, comprising a base (1), a fan body (2) arranged on the upper part of the base (1), and a humidifying component (3), characterized in that: The lower part of the base (1) is detachably connected to a power supply device (4); the power supply device (4) comprises a housing (5); a battery module (6) and a power management module (7) electrically connected to the battery module (6) are installed in the housing (5); a power output interface (8) is electrically connected to the power management module (7); the power output interface (8) is arranged on a side of the housing (5); a power input interface (9) is arranged on the same side as the power output interface (8); the upper side of the housing (5) is provided with a power input interface (9); the power input interface (9) and the power output interface (8) are arranged on the same side; A plurality of positioning columns (10) are vertically extended, and a plurality of positioning holes (11) are provided on the lower side of the base (1) for the positioning columns (10) to be inserted and positioned one by one; an elastic buckle (12) is provided on the side of the base (1) away from the power input interface (9), and a transverse positioning rod (13) is provided on the side of the shell (5) corresponding to the elastic buckle (12) for buckling with the elastic buckle (12), and both ends of the positioning rod (13) are fixed to the side of the shell (5) through positioning blocks (14); and the outer side of the base (1) is provided with a plurality of positioning holes (11) for the positioning columns (10) to be inserted and positioned one by one; and an elastic buckle (12) is provided on the side of the shell (5) corresponding to the elastic buckle (12). A driving guide rail (15) is transversely arranged below the power input interface (9); a driving rod (16) is arranged along the length direction of the driving guide rail (15); a driving guide groove (17) is provided along the length direction of the driving rod (16) for slidingly engaging with the driving guide rail (15); a baffle plate (18) for shielding the power input interface (9) is extended upward from the driving rod (16); a first transverse guide rail (19) is arranged on the horizontal side of the driving guide rail (15) and corresponds to the outer side surface of the driving guide rail (15). The housing (5) corresponds to the outer side surface of the power output interface (8) and is provided with a transverse second guide rail (20) below the first guide rail (19); when the housing (5) is spliced ​​under the base (1), the first guide rail (19) and the second guide rail (20) are spliced ​​with each other to form a locking guide rail (41); a locking block (42) is provided at one end of the driving rod (16) close to the first guide rail (19); a locking guide groove (43) is provided on the side of the locking block (42) close to the base (1) and is slidably engaged with the locking guide rail (41); When the locking guide groove (43) on the locking block (42) is completely slid along with the driving rod (16) to be clamped to the locking guide rail (41) formed by splicing the first guide rail (19) and the second guide rail (20), the baffle plate (18) can slide along with the driving rod (16) to one side of the power input interface (9) so that the power input interface (9) is exposed; On the contrary, when the locking guide groove (43) on the locking block (42) completely detaches from the locking guide rail (41) formed by splicing the first guide rail (19) and the second guide rail (20) along with the driving rod (16), the baffle plate (18) can slide along with the driving rod (16) to a position for shielding the power input interface (9) so as to shield the power input interface (9).

2. The multifunctional humidifying desktop fan according to claim 1, characterized in that: A gripping piece (21) is provided on the side of the driving rod (16) away from the driving guide rail (15).

3. The multifunctional humidifying desktop fan according to claim 1, characterized in that: A first limiting block (22) is provided at one end of the driving guide rail (15) away from the first guide rail (19) to limit the sliding direction of the driving rod (16) away from the first guide rail (19).

4. The multifunctional humidifying desktop fan according to claim 1, characterized in that: A second limiting block (23) is provided at one end of the first guide rail (19) and the second guide rail (20) away from the driving guide rail (15) to limit the sliding direction of the locking block (42) away from the driving guide rail (15).

5. The multifunctional humidifying desktop fan according to any one of claims 1 to 4, characterized in that: A hook (24) facing away from the power supply device (4) is provided on a side of the baffle plate (18) away from the locking block (42); a locking buckle (25) is longitudinally slidably engaged on the hook (24) to lock or unlock the lateral sliding of the baffle plate (18); and a trigger mechanism (26) is provided on the locking buckle (25); When the power supply device (4) is completely installed below the base (1), the trigger mechanism (26) drives the locking buckle (25) to slide in a direction away from the power supply device (4) to disengage from the hook (24); conversely, when the power supply device (4) is not completely installed below the base (1), the trigger mechanism (26) drives the locking buckle (25) to slide in a direction close to the power supply device (4) to engage with the hook (24).

6. The multifunctional humidifying desktop fan according to claim 5, characterized in that: The trigger mechanism (26) comprises a support rod (27) vertically fixed below the locking buckle (25) and a sleeve (28) slidably sleeved on the support rod (27); the inner hole diameter of the sleeve (28) is larger than the rod diameter of the support rod (27) and a sliding spacer (29) is formed; an upper baffle ring (30) slidably sleeved on the support rod (27) is extended from the upper end of the sleeve (28); a lower baffle ring (31) slidably sleeved on the support rod (27) is extended from the lower end of the sleeve (28); and an abutment ring (32) is provided on the outer peripheral surface of the support rod (27) and at its lower end position. The lower end surface of the abutting ring (32) abuts against the upper end surface of the lower baffle ring (31), a compression spring (33) sleeved on the support rod (27) is arranged in the sliding interval (29), one end of the compression spring (33) abuts against the lower end surface of the upper baffle ring (30), and the other end of the compression spring (33) abuts against the upper end surface of the abutting ring (32); the trigger mechanism (26) also includes a fixing seat (34) arranged on the outer side wall of the housing (5) and located directly below the locking buckle (25) and a ejector pin (35) arranged on the upper side surface of the fixing seat (34) and extending vertically upward; When the power supply device (4) is completely installed under the base (1), the ejector pin (35) overcomes the elastic supporting force of the compression spring (33) to push the support rod (27) upward, thereby driving the locking buckle (25) to slide upward and disengage from the hook (24); conversely, when the power supply device (4) is separated from the base (1), the support rod (27) can slide downward under the elastic force of the compression spring (33), thereby driving the locking buckle (25) to slide in the direction close to the power supply device (4) and be engaged with the hook (24).

7. The multifunctional humidifying desktop fan according to claim 6, characterized in that: A push rod (36) extends downward from the end of the support rod (27) away from the locking buckle (25), and a bushing (37) extends downward from the lower end of the sleeve (28) and is slidably sleeved on the push rod (36). The inner wall of the bushing (37) abuts against the outer wall of the push rod (36), and the length of the push rod (36) is less than or equal to the axial length of the bushing (37); the outer diameter of the push pin (35) is less than or equal to the inner diameter of the bushing (37).

8. The multifunctional humidifying desktop fan according to claim 7, characterized in that: The end of the ejector pin (35) is provided with a ball head (38).

9. The multifunctional humidifying desktop fan according to any one of claims 1 to 4, characterized in that: The power management module (7) is also electrically connected to a charging interface (39), and the charging interface (39) is arranged on the side of the housing (5).

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