CN215860870U - Tower fan with automatic lifting function - Google Patents
Tower fan with automatic lifting function Download PDFInfo
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- CN215860870U CN215860870U CN202121641524.0U CN202121641524U CN215860870U CN 215860870 U CN215860870 U CN 215860870U CN 202121641524 U CN202121641524 U CN 202121641524U CN 215860870 U CN215860870 U CN 215860870U
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Abstract
The utility model provides a tower fan with an automatic lifting function, which comprises a first fan shell, a second fan shell and a third fan shell which are sequentially sleeved, wherein automatic lifting mechanisms which are mutually matched in a transmission manner are arranged in the three fan shells, each automatic lifting mechanism comprises a mounting frame and a motor, a driving gear, a driven gear, a first screw rod, a second screw rod, a first connecting rod and a second connecting rod which are arranged on the mounting frame, the motor is in driving connection with the driving gear, the driving gear is meshed with the driven gear, the first screw rod is fixedly connected with the driving gear, the second screw rod is fixedly connected with the driven gear, the first connecting rod is sleeved on the first screw rod in a screwed manner, the first connecting rod is fixed on the inner side of the third fan shell, the second connecting rod is sleeved on the second screw rod in a screwed manner, and when the motor rotates towards the first direction, the automatic lifting mechanism drives the tower fan to extend and rise, when the motor rotates towards a second direction opposite to the first direction, the automatic lifting mechanism drives the tower fan to contract and lower.
Description
Technical Field
The utility model relates to the technical field of daily necessities, in particular to a tower fan with an automatic lifting function.
Background
The existing tower fan on the market is generally high in height and large in occupied space, the shell of the tower fan is of an integrated structure, the height and the volume of the tower fan are fixed, the height and the volume of the tower fan cannot be adjusted, and the application range of the tower fan is limited. Moreover, because the tower fan belongs to seasonal product, inconvenient accomodating when not using.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a tower fan with an automatic lifting function, which can effectively solve the above problems.
The utility model provides a tower fan with an automatic lifting function, which comprises a first fan shell, a second fan shell and a third fan shell which are mutually sleeved, wherein automatic lifting mechanisms which are mutually matched in a transmission manner are arranged in the three fan shells, each automatic lifting mechanism comprises a mounting frame, and a motor, a driving gear, a driven gear, a first screw rod, a second screw rod, a first connecting rod and a second connecting rod which are arranged on the mounting frame, the motor is in driving connection with the driving gear or the first screw rod, the driving gear is meshed with the driven gear, the first screw rod is fixedly connected with the driving gear, the second screw rod is fixedly connected with the driven gear, the first connecting rod is in threaded sleeve on the first screw rod, the first connecting rod is fixed on the inner side of the third fan shell, the second connecting rod is in threaded sleeve on the second screw rod, and the second connecting rod is fixed on the inner side of the first fan shell, when the motor rotates towards a first direction, the automatic lifting mechanism drives the tower fan to extend and rise, and when the motor rotates towards a second direction opposite to the first direction, the automatic lifting mechanism drives the tower fan to contract and lower.
In an embodiment, an installation space is formed in the installation frame, the first screw and the second screw are arranged in the installation space side by side, the driving gear and the driven gear are arranged in a lower side region of the installation space side by side, the bottom end of the first screw is fixedly connected with the driving gear, the bottom end of the second screw is fixedly connected with the driven gear, and the top ends of the first screw and the second screw are respectively arranged on the top wall of the installation space in a penetrating manner.
In an embodiment, a first fixing frame is fixedly connected in the bottom of the first fan case, and the second connecting rod is fixed on the first fixing frame, so that the second connecting rod and the first fan case are relatively fixed.
In an embodiment, a third fixing frame is fixedly connected in the bottom of the third fan case, and the first connecting rod is fixed on the third fixing frame, so that the first connecting rod and the third fan case are relatively fixed.
In an embodiment, a first sleeving part is arranged on one side of the bottom of the first connecting rod, a first sleeving hole is formed in the first sleeving part, and an internal thread matched with the first screw in a threaded manner is arranged in the first sleeving hole; and a second sleeving part is arranged on one side of the top of the second connecting rod, a second sleeving hole is formed in the second sleeving part, and an internal thread which is in threaded fit with the second screw rod is arranged in the second sleeving hole.
In an embodiment, a mounting seat is arranged at the bottom of the mounting frame, the motor is mounted at the bottom of the mounting seat, and a driving shaft of the motor penetrates through the mounting seat and the mounting frame to be in driving connection with the driving gear or the first screw.
In an embodiment, a partition board is arranged in the installation space, the partition board divides the installation space into an accommodating groove and an installing groove, the first screw and the second screw are arranged in the accommodating groove side by side, the driving gear and the driven gear are arranged in the installing groove side by side, the bottom end of the first screw penetrates through the partition board and is fixedly connected with the driving gear, and the bottom end of the second screw penetrates through the partition board and is fixedly connected with the driven gear.
In one embodiment, when the motor drives the driving gear to rotate in the first direction, the second fan casing is retracted into the first fan casing, and the third fan casing is retracted into the second fan casing; when the motor drives the driving gear to rotate in the second direction, the second fan case extends out of the first fan case, and the third fan case extends out of the second fan case.
In an embodiment, the tower fan further includes a base, a fan wheel is disposed in the base, an air inlet is disposed on a side wall of the base, and air outlets are disposed on side walls of the first fan casing, the second fan casing, and the third fan casing, respectively.
In one embodiment, a wind guide member is connected between the base and the first fan casing, and the wind generated by the impeller is guided into the first fan casing through the wind guide member.
In summary, the utility model provides a tower fan with an automatic lifting function, the tower fan is divided into an upper layer, a middle layer and a lower layer, a motor, a driving gear, a driven gear and two screws are fixed in the middle layer, the upper layer and the lower layer are fixedly connected through connecting rods with internal threads, the two connecting rods are respectively in threaded connection with the two screws, and the two connecting rods are respectively located at the upper side and the lower side of the two screws. When the tower fan needs to be used, the motor rotates in one direction to drive the driving gear or the first screw rod to rotate and drive the driven gear to rotate, the driven gear drives the second screw rod to rotate, and then the first connecting rod and the second connecting rod are driven to move relatively, so that the three fan shells are driven to move relatively in an unfolding mode, and the tower fan is stretched and lifted; in a similar way, when the tower fan does not need to be used, the motor rotates towards the other direction, the shrinkage of the tower fan can be reduced, the height and the occupied area of the tower fan are reduced, and the tower fan is convenient to store by a user.
Drawings
Fig. 1 is a perspective view of a tower fan according to the present invention in an extended state.
Figure 2 is a perspective cross-sectional view of the tower fan of figure 1 at an angle.
Figure 3 is a perspective cross-sectional view of the tower fan of figure 1 at another angle.
Fig. 4 is an enlarged schematic view of a portion a in fig. 3.
Fig. 5 is a perspective view of the tower fan in a contracted state.
Figure 6 is a perspective cross-sectional view of the tower fan of figure 5.
Fig. 7 is an exploded view of a tower fan.
Figure 8 is another exploded schematic view of a tower fan.
Fig. 9 is yet another exploded schematic view of a tower fan.
Detailed Description
Before the embodiments are described in detail, it is to be understood that the utility model is not limited in its application to the details of construction and the arrangements of components set forth in the following description or illustrated in the drawings. The utility model is capable of embodiments in other forms of implementation. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," "having," and the like, herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. In particular, when "a certain element" is described, the present invention is not limited to the number of the element being one, and may include a plurality of the elements.
As shown in fig. 1 and 5, the present invention provides a tower fan 10 with an automatic lifting function, the tower fan 10 is disposed along a vertical direction, and includes a first fan casing 12, a second fan casing 14 and a third fan casing 16 that are sleeved with each other, wherein the first fan casing 12 is located at a lowermost layer, the second fan casing 14 is located at a middle layer, and the third fan casing 16 is located at an uppermost layer, in this embodiment, a cross-sectional area of the first fan casing 12 is greater than that of the second fan casing 14, and a cross-sectional area of the second fan casing 14 is greater than that of the third fan casing 16; in other embodiments, when the second fan casing 14 is relatively long, the cross-sectional area of the first fan casing 12 may be smaller than that of the second fan casing 14, the cross-sectional area of the second fan casing 14 is larger than that of the third fan casing 16, and when the tower fan is contracted, both the first fan casing 12 and the third fan casing 16 are contracted in the second fan casing 14.
The three fan cases are internally provided with automatic lifting mechanisms which are mutually matched in a transmission way, and the automatic lifting mechanisms can drive the tower fan 10 to be switched between an extension state and a contraction state. In the extended state, the second fan case 14 extends out of the first fan case 12, and the third fan case 16 extends out of the second fan case 14; in the collapsed state, the second fan case 14 is collapsed within the first fan case 12, and the third fan case 16 is collapsed within the second fan case 14.
Referring to fig. 2, 3 and 6 to 9, the automatic lifting mechanism includes a mounting frame 18, and a motor 20, a driving gear 22, a driven gear 24, a first screw 26, a second screw 28, a first link 30 and a second link 32 mounted on the mounting frame 18. The motor 20 is drivingly connected to the first screw 26, the driving gear 22 is meshed with the driven gear 24, the driving gear 22 is fixedly connected to the first screw 26 in a sleeved manner, the driving gear 22 can be driven to rotate when the first screw 26 rotates, and the second screw 28 is fixedly connected to the driven gear 24, so that the driven gear can drive the second screw 28 to rotate when the driven gear rotates. The first connecting rod 30 is screwed and sleeved on the first screw 26, so that the first screw 26 can drive the first connecting rod 30 to rotate and move up and down when rotating, the first connecting rod 30 is fixed on the inner side of the third fan casing 16, the second connecting rod 32 is screwed and sleeved on the second screw 28, so that the second connecting rod 32 can be driven to rotate and move up and down when rotating, and the second connecting rod 32 is fixed on the inner side of the first fan casing 12. In other embodiments, the motor 20 may be in transmission connection with the second driving gear 22, the first screw 26 is fixed to the driving gear 22 in an inserting manner, and when the motor 20 drives the driving gear 22 to rotate, the first screw 26 and the driven gear 24 are driven to rotate, and the second screw 28 is driven to rotate.
Wherein, the motor 20 can be a stepping motor, and after starting, the motor 20 can rotate forward and backward to drive the tower fan 10 to rise and fall. The motor 20 rotates to drive the first screw 26 and the driving gear 22 to rotate, and the driving gear 22 is engaged with the driven gear 24, so that the driving gear 22 rotates to drive the driven gear 24 to rotate. The driving gear 22 is fixedly connected with the first screw 26, so that the driving gear 22 is driven to rotate when the first screw 26 rotates; the driven gear 24 is fixedly connected to the second screw 28, such that rotation of the driven gear 24 rotates the second screw 28.
Further, the mounting frame 18 is fixed in the second fan case 14, the first link 30 is fixedly connected to the third fan case 16, and the second link 32 is fixedly connected to the first fan case 12, when the motor 20 drives the first screw 26 to rotate in a first direction, for example, clockwise direction, the first fan case 12 is driven by the driving gear 22, the driven gear 24, the first screw 26, the second screw 28, the first link 30 and the second link 32 to move the first fan case 12 upward relative to the second fan case 14, and the third fan case 16 moves downward relative to the second fan case 14, because the first fan case 12 is in a fixed state, that is, the second fan case 14 moves downward relative to the first fan case 12, so that the tower fan 10 is contracted and lowered. When the motor 20 drives the first screw 26 to rotate in a second direction opposite to the first direction, for example, in a counterclockwise direction, the driving gear 22, the driven gear 24, the first screw 26, the second screw 28, the first link 30 and the second link 32 drive the first fan case 12 to move downward relative to the second fan case 14, and the third fan case 16 moves upward relative to the second fan case 14, because the first fan case 12 is in a fixed state, that is, the second fan case 14 moves upward relative to the first fan case 12, and the third fan case 16 moves upward relative to the second fan case 14, so that the tower fan 10 extends and rises.
Preferably, in order to prevent the third fan case 16 from being separated from the second fan case 14 upwards and the second fan case 14 from being separated from the first fan case 12 upwards, bosses are further respectively and convexly provided at the bottom outer edge of the third fan case 16 and the bottom outer edge of the second fan case 14, and protruding rings matched with the bosses are respectively and convexly provided at the top inner edge of the first fan case 12 and the top inner edge of the second fan case 14, so that when the third fan case 16 moves upwards to the topmost end and the second fan case 14 moves upwards to the topmost end, the bosses and the protruding rings are clamped and matched, and therefore the third fan case 16 is prevented from being separated from the second fan case 14 and the second fan case 14 upwards from the first fan case 12.
Referring to fig. 4, an installation space is formed in the installation frame 18, the first screw 26 and the second screw 28 are disposed in the installation space side by side, the driving gear 22 and the driven gear 24 are disposed in a lower side region of the installation space side by side, a bottom end of the first screw 26 is fixedly connected to the driving gear 22, a bottom end of the second screw 28 is fixedly connected to the driven gear 24, and top ends of the first screw 26 and the second screw 28 are respectively disposed on a top wall of the installation space in a penetrating manner.
Preferably, a partition 38 is disposed in the installation space, the partition 38 divides the installation space into the receiving groove 34 and the installation groove 36 which are arranged along the vertical direction, and the partition 38 can be used to prevent the first connecting rod 30 and the second connecting rod 32 from moving excessively, so as to perform a limiting function. The first screw 26 and the second screw 28 are arranged in the accommodating groove 34 at intervals side by side, the driving gear 22 and the driven gear 24 are arranged in the mounting groove 36 at intervals side by side, and the two are meshed with each other, the bottom end of the first screw 26 penetrates through the partition plate 38 and is fixedly connected with the driving gear 22, the bottom end of the second screw 28 penetrates through the partition plate 38 and is fixedly connected with the driven gear 24, and the top ends of the first screw 26 and the second screw 28 are respectively arranged on the top wall of the accommodating groove 34 in a penetrating manner, so that the first screw 26 and the second screw 28 can rotate on the mounting frame 18.
A first fixing frame 40 is fixed in the bottom of the first fan case 12 in an inner connecting manner, and the first connecting rod 30 is fixed on the first fixing frame 40, so that the first connecting rod 30 and the first fan case 12 are relatively fixed, and the first fan case 12 is driven to move up and down through the first connecting rod 30. The inner side of the bottom of the second fan case 14 is provided with a second fixing frame 42, and the mounting frame 18 is fixed on the second fixing frame 42, so that the mounting frame 18 is fixed on the inner side of the second fan case 14. In other embodiments, the second fixing frame 42 may not be provided, and the mounting frame 18 is directly fixedly connected with the bottom of the second fan case 14. A third fixing frame 44 is connected and fixed in the bottom of the third fan case 16, and the second connecting rod 32 is fixed on the third fixing frame 44, so that the second connecting rod 32 and the third fan case 16 are relatively fixed, and the third fan case 16 is driven to move up and down by the second connecting rod 32. In this way, when the automatic lifting mechanism operates, the driving gear 22, the driven gear 24, the first screw 26 and the second screw 28 drive the first link 30 and the third link 32 to move relatively, and further drive the first fan case 12 and the third fan case 16 to move up and down relative to the second fan case 14, thereby achieving automatic lifting of the tower fan 10.
Further, bottom one side of first connecting rod 30 is equipped with first spigot portion 46, is equipped with first spigot hole 48 on the first spigot portion 46, is equipped with the internal thread that is used for with first screw rod 26 screw-thread fit on the inner wall of first spigot hole 48 for first connecting rod 30 accessible first spigot hole 48 screw-thread sleeve connects on first screw rod 26, in order to cooperate with first screw rod 26 screw-thread. Similarly, a second sleeving part 50 is disposed on one side of the top of the second connecting rod 32, a second sleeving hole 52 is disposed on the second sleeving part 50, and an internal thread for threadedly engaging with the second screw 28 is disposed on an inner wall of the second sleeving hole 52, so that the second connecting rod 32 can be threadedly sleeved on the second screw 28 through the second sleeving hole 52 to threadedly engage with the second screw 28.
In the illustrated embodiment, the bottom of the mounting bracket 18 is provided with a mounting base 54, the motor 20 is mounted to the bottom of the mounting bracket 18 via the mounting base 54, and the drive shaft of the motor 20 is drivingly coupled to the pinion gear 22 through the mounting base 54 and the mounting bracket 18.
In this embodiment, the tower fan 10 further includes a base 56, a fan wheel 58 is disposed in the base 56, an air inlet 60 is disposed on a side wall of the base 56, and air outlets 62 are disposed on side walls of the first fan case 12, the second fan case 14, and the third fan case 16, respectively. An air guide 64 is connected between base 56 and first fan case 12, and air generated by the operation of fan wheel 58 can be smoothly guided into first fan case 12, second fan case 14, and third fan case 16 through air guide 64. And when the tower fan 10 is in the storage state, the motor 20 is located right inside the wind guide 64. The base 56 of the tower fan 10 is also provided with a circuit board and a power supply, the fan wheel 58 and the motor 20 are respectively electrically connected with the circuit board, the fan wheel 58 rotates to suck air from the air inlet 60 and generate wind and then blows the air out from the air outlet 62, and the power supply can be connected with an external power grid through a wire to provide power for the tower fan 10. A button electrically connected with the circuit board is also arranged on the fan shell of the tower fan 10, and the automatic lifting of the tower fan 10 can be controlled through the button; or, a remote controller is arranged, correspondingly, a remote control circuit is arranged on the circuit board, and the remote controller is in signal connection with the control circuit, so that a user can control the tower fan 10 to automatically lift through the remote controller.
In summary, the utility model provides a tower fan with an automatic lifting function, the tower fan is divided into an upper layer, a middle layer and a lower layer, a motor, a driving gear, a driven gear and two screws are fixed in the middle layer, the upper layer and the lower layer are fixedly connected through connecting rods with internal threads, the two connecting rods are respectively in threaded connection with the two screws, and the two connecting rods are respectively located at the upper side and the lower side of the two screws. When the tower fan needs to be used, the motor rotates in one direction to drive the first screw rod and the driving gear to rotate and drive the driven gear to rotate, the driven gear is fixedly connected with the second screw rod, so that the first screw rod and the second screw rod rotate, the first connecting rod and the second connecting rod are driven to move relatively, the three fan shells are driven to move relatively in an expanding mode, and the tower fan is stretched and lifted; in a similar way, when the tower fan does not need to be used, the motor rotates towards the other direction, the shrinkage of the tower fan can be reduced, the height and the occupied area of the tower fan are reduced, and the tower fan is convenient to store by a user.
The concepts described herein may be embodied in other forms without departing from the spirit or characteristics thereof. The particular embodiments disclosed should be considered illustrative rather than limiting. The scope of the utility model is, therefore, indicated by the appended claims rather than by the foregoing description. Any changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (10)
1. A tower fan with an automatic lifting function is characterized by comprising a first fan shell, a second fan shell and a third fan shell which are mutually sleeved, wherein automatic lifting mechanisms which are mutually matched in a transmission manner are arranged in the three fan shells, each automatic lifting mechanism comprises a mounting frame, and a motor, a driving gear, a driven gear, a first screw rod, a second screw rod, a first connecting rod and a second connecting rod which are arranged on the mounting frame, the motor is in driving connection with the driving gear or the first screw rod, the driving gear is meshed with the driven gear, the first screw rod is fixedly connected with the driving gear, the second screw rod is fixedly connected with the driven gear, the first connecting rod is in threaded connection with the first screw rod in a sleeved manner, the first connecting rod is fixed on the inner side of the third fan shell in a screwed manner, the second connecting rod is sleeved on the second screw rod in a sleeved manner, and the second connecting rod is fixed on the inner side of the first fan shell, when the motor rotates towards a first direction, the automatic lifting mechanism drives the tower fan to extend and rise, and when the motor rotates towards a second direction opposite to the first direction, the automatic lifting mechanism drives the tower fan to contract and fall.
2. The tower fan with automatic lifting function as claimed in claim 1, wherein an installation space is formed in the installation frame, the first screw and the second screw are arranged side by side in the installation space, the driving gear and the driven gear are arranged side by side in a lower side region of the installation space, a bottom end of the first screw is fixedly connected with the driving gear, a bottom end of the second screw is fixedly connected with the driven gear, and top ends of the first screw and the second screw are respectively arranged on a top wall of the installation space in a penetrating manner.
3. The tower fan with automatic lifting function as claimed in claim 2, wherein a first fixing frame is fixedly connected in the bottom of the first fan casing, and the second connecting rod is fixed on the first fixing frame, so that the second connecting rod is fixed relative to the first fan casing.
4. The tower fan with automatic lifting function as claimed in claim 3, wherein a third fixing frame is fixedly connected in the bottom of the third fan casing, and the first connecting rod is fixed on the third fixing frame, so that the first connecting rod and the third fan casing are relatively fixed.
5. The tower fan with automatic lifting function as claimed in claim 4, wherein a first engaging portion is provided on one side of the bottom of the first connecting rod, the first engaging portion is provided with a first engaging hole, and an internal thread for engaging with the first screw is provided in the first engaging hole; and a second sleeving part is arranged on one side of the top of the second connecting rod, a second sleeving hole is formed in the second sleeving part, and an internal thread which is in threaded fit with the second screw rod is arranged in the second sleeving hole.
6. The tower fan with automatic lifting function as claimed in claim 5, wherein the bottom of the mounting frame is provided with a mounting seat, the motor is mounted at the bottom of the mounting seat, and a driving shaft of the motor passes through the mounting seat and the mounting frame to be drivingly connected with the driving gear or the first screw.
7. The tower fan with automatic lifting function as claimed in claim 2, wherein a partition is provided in the installation space, the partition divides the installation space into an accommodation groove and an installation groove, the first screw and the second screw are disposed in the accommodation groove side by side, the driving gear and the driven gear are disposed in the installation groove side by side, the bottom end of the first screw passes through the partition and is fixedly connected with the driving gear, and the bottom end of the second screw passes through the partition and is fixedly connected with the driven gear.
8. The tower fan with automatic lifting function according to any one of claims 1 to 7, wherein when the motor drives the driving gear to rotate in the first direction, the second fan case is retracted into the first fan case, and the third fan case is retracted into the second fan case; when the motor drives the driving gear to rotate in the second direction, the second fan case extends out of the first fan case, and the third fan case extends out of the second fan case.
9. The tower fan with automatic lifting function as claimed in claim 8, further comprising a base, wherein the base is provided with a fan wheel therein, the side wall of the base is provided with an air inlet, and the side walls of the first fan case, the second fan case and the third fan case are respectively provided with an air outlet.
10. The tower fan with automatic lifting function as claimed in claim 9, wherein an air guide member is connected between the base and the first fan casing, and the air generated by the fan wheel is guided into the first fan casing through the air guide member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121641524.0U CN215860870U (en) | 2021-07-16 | 2021-07-16 | Tower fan with automatic lifting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121641524.0U CN215860870U (en) | 2021-07-16 | 2021-07-16 | Tower fan with automatic lifting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215860870U true CN215860870U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121641524.0U Active CN215860870U (en) | 2021-07-16 | 2021-07-16 | Tower fan with automatic lifting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215860870U (en) |
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2021
- 2021-07-16 CN CN202121641524.0U patent/CN215860870U/en active Active
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