Liftable tower fan

Abstract

The utility model discloses a liftable tower fan, belongs to the field of electric appliances, and is used for solving the problem of how to keep the adjustability of the height and the air outlet angle of the tower fan at the same time. The liftable tower fan comprises a lifting mechanism, a steering mechanism, an outer cover, an air outlet device and a base. A lifting table of the lifting mechanism is vertically and movably connected with a base through a guide structure, a nut is fixed to the base and located below the lifting table, a lead screw is vertically arranged and is in threaded connection with the nut, the top of the lead screw is rotatably connected with the lifting table, and a lifting motor is installed on the lifting table and is in transmission connection with the lead screw. A rotating table of the steering mechanism is rotatably arranged above the lifting table, a fixed gear is fixedly connected with the lifting table and rotatably connected with the rotating table, a rotating motor is installed on the rotating table and connected with a movable gear, and the movable gear is connected with the fixed gear; the outer cover is arranged outside the lifting mechanism and the steering mechanism in a covering mode and connected with the rotating table. The air outlet device is located in the outer cover and connected with the outer cover.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electrical appliances, in particular to a liftable tower fan. BACKGROUND

[0002] As a common household appliance, the tower fan combines the built-in wind wheel and guide vane to suck in air and accelerate it, and then blow it out uniformly along the tower-shaped body, forming a relatively wide air supply range and bringing users a comfortable natural wind experience.

[0003] However, the height of the conventional tower fan is usually fixed and cannot be adjusted. Because the fixed-height tower fan needs to occupy a larger space, it leads to a larger packaging volume, increasing the transportation cost and storage difficulty. For manufacturers, this means that they need larger warehouse space and higher logistics cost; for consumers, it may face the problem of inconvenient handling and space occupation after purchase.

[0004] In order to solve the problem of the unadjustable height of the conventional tower fan, a few tower fan products with height adjustment function have appeared in the market. These products design a telescopic body structure, so that users can adjust the height of the tower fan according to actual needs, thereby optimizing the efficiency of packaging, transportation and storage to a certain extent. However, such height-adjustable tower fans are usually difficult to effectively control the air outlet angle. Because the height adjustment mechanism may affect the stability of the air duct structure or the positioning accuracy of the guide vane, after adjusting the height, the air outlet direction of the tower fan may deviate or be unstable, which cannot accurately control the air outlet angle like the fixed-height tower fan, thereby affecting the air supply effect and user experience.

[0005] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. CONTENT OF THE UTILITY MODEL

[0006] (I) Technical problems to be solved

[0007] The present application provides a liftable tower fan, which can solve the problem of how to keep the height of the tower fan adjustable while ensuring the stability and controllability of the air outlet angle.

[0008] (II) Technical solutions

[0009] To solve the above technical problems, the present application provides the following technical solutions:

[0010] A liftable tower fan is provided, which comprises a lifting mechanism, a steering mechanism, an outer cover, an air outlet device and a base.

[0011] The lifting mechanism comprises a lifting platform, a lead screw, a nut, and a lifting motor, the lifting platform is movably connected to the base vertically through a guide structure, the nut is fixed on the base and located below the lifting platform, the lead screw is vertically arranged and connected to the nut through a thread, the top of the lead screw is rotatably connected to the lifting platform, and the lifting motor is installed on the lifting platform and connected to the lead screw in transmission to drive the rotation of the lead screw.

[0012] The rotating mechanism comprises a rotating platform, a fixed gear, a movable gear, and a rotating motor, the rotating platform is rotatably arranged above the lifting platform, the fixed gear is fixedly connected to the lifting platform and rotatably connected to the rotating platform, the rotating motor is installed on the rotating platform and connected to the movable gear, and the movable gear is connected to the fixed gear.

[0013] The cover is arranged outside the lifting mechanism and the rotating mechanism, fixedly connected to the rotating platform, and provided with air outlet holes.

[0014] The air outlet device is located inside the cover and fixedly connected to the cover, configured to send air outside the cover through the air outlet holes.

[0015] In some embodiments, the base is provided with at least two vertically extending columns, the columns are provided with vertically extending guide holes, the bottom of the lifting platform is provided with a guide shaft configured as a guide structure, the guide shaft extends vertically and is slidably arranged in the guide holes.

[0016] In some embodiments, the nut is fixedly provided with a connecting seat outside, the columns are fixedly provided with a connecting plate outside, and the connecting plate is fixedly connected to the connecting seat through a screw.

[0017] In some embodiments, the bottom of the lifting platform is provided with a first bearing, the top of the lead screw is fixedly provided with a bearing sleeve, and the first bearing is rotatably connected to the bearing sleeve.

[0018] In some embodiments, the top of the lifting platform is fixedly provided with a vertically extending convex shaft, the fixed gear is located at the upper end of the convex shaft and fixedly connected to the convex shaft through a bolt, and the middle of the rotating platform is provided with a second bearing and rotatably connected to the convex shaft through the second bearing.

[0019] In some embodiments, the inside of the cover is provided with at least two rows of vertically arranged ribs, the clamping grooves are formed between the ribs, and the edges of the rotating platform are embedded in the clamping grooves.

[0020] In some embodiments, the cover comprises a first shell and a second shell which are distributed along the horizontal direction and detachably connected, and the rotating platform and the air outlet device are fixedly connected to the first shell through a screw.

[0021] (III) Beneficial Effects

[0022] Compared with the prior art, the technical scheme provided by the embodiment of the application has at least the following beneficial effects:

[0023] When the liftable tower fan of the application works, the cover and the air outlet device can be lifted by the lifting mechanism to adjust the height of the cover and the volume of the product, and the cover and the air outlet device can be rotated by the rotating mechanism to adjust the air supply direction. Specifically, when adjusting the height of the cover, the lifting motor drives the screw rod to rotate, and since the nut is fixed on the base, the screw rod will rotate and move up and down, thereby driving the lifting platform to move up and down. At the same time, since the lifting platform is rotatably connected with the screw rod and is vertically movably connected with the base through the guide structure, the lifting platform will not rotate with the screw rod. In this way, the lifting platform can drive the rotating platform and the cover to move up and down, thereby adjusting the height of the cover. When adjusting the air supply direction, the rotating motor installed on the rotating platform drives the driving gear to rotate, thereby driving the rotating platform to rotate around the driven gear. Since the cover, the rotating platform and the air outlet device are connected, the rotating platform can drive the cover and the air outlet device to rotate synchronously, thereby adjusting the air supply angle. As can be seen, the liftable tower fan of the application can adjust the air supply angle while keeping the height of the tower fan adjustable, which can reduce the packaging volume without affecting the adjustability of the air supply angle. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0025] Figure 1 is an exploded view of the liftable tower fan in the embodiment of the application;

[0026] Figure 2 is a perspective view of the internal structure of the liftable tower fan in the embodiment of the application;

[0027] Figure 3 is a front view of the liftable tower fan in the embodiment of the application;

[0028] Figure 4 is a partial cross-sectional perspective view of section A in Figure 3

[0029] Figure 5 is a side view of the liftable tower fan in the embodiment of the application;

[0030] Figure 6 is a side view of the liftable tower fan in the embodiment of the application; Figure 5 ​A local sectional view of the middle B section.

[0031] Reference signs:

[0032] Lifting mechanism 1, lifting platform 11, lead screw 12, nut 13, lifting motor 14, guide structure 15, guide shaft 111, first bearing 112, convex shaft 113, bearing sleeve 121, connecting seat 131;

[0033] Steering mechanism 2, rotating table 21, fixed gear 22, movable gear 23, rotating motor 24, second bearing 211;

[0034] Cover 3, air outlet hole 31, rib 32, first shell 33, second shell 34, clamping groove 321;

[0035] Air outlet device 4;

[0036] Base 5, stand 51, guide hole 511, connecting plate 512.

[0037] The specific embodiments of the present application have been shown in the above drawings, and will be described in more detail hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the present application more clear, the embodiments of the present application will be described in more detail below with reference to the drawings.

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] Most conventional tower fans cannot adjust the height, and occupy a large space during packaging and transportation. A few tower fans that can adjust the height have the problem of being unable to control the air outlet angle.

[0041] To solve the above technical problems, the present embodiment provides a liftable tower fan. Referring to Figures 1 to 4 shown, Figure 1 is an exploded view of the liftable tower fan in the embodiments of the present application, Figure 2 is a perspective view of the internal structure of the liftable tower fan in the embodiments of the present application, Figure 3 is a front view of the liftable tower fan in the embodiments of the present application, Figure 4 is Figure 3A sectional view of the middle A section.

[0042] A liftable tower fan includes a lifting mechanism 1, a steering mechanism 2, a cover 3, an air outlet device 4 and a base 5.

[0043] The base 5 is placed on the ground or a workbench as a supporting foundation.

[0044] Referring to Figure 2 and Figure 4 , the lifting mechanism 1 includes a lifting platform 11, a lead screw 12, a nut 13, a lifting motor 14, the lifting platform 11 is vertically movably connected to the base 5 through a guide structure 15, the nut 13 is fixed on the base 5 and located below the lifting platform 11, the lead screw 12 is vertically arranged and connected to the nut 13 through a thread, the top of the lead screw 12 is rotatably connected to the lifting platform 11, and the lifting motor 14 is installed on the lifting platform 11 and drivingly connected to the lead screw 12 to drive the lead screw 12 to rotate.

[0045] The steering mechanism 2 includes a rotating platform 21, a fixed gear 22, a movable gear 23 and a rotating motor 24, the rotating platform 21 is rotatably arranged above the lifting platform 11, the fixed gear 22 is fixedly connected to the lifting platform 11 and rotatably connected to the rotating platform 21, the rotating motor 24 is installed on the rotating platform 21 and connected to the movable gear 23, and the movable gear 23 is connected to the fixed gear 22.

[0046] The cover 3 is arranged outside the lifting mechanism 1 and the steering mechanism 2 and fixedly connected to the rotating platform 21, and is provided with an air outlet hole 31.

[0047] The air outlet device 4 is located inside the cover 3 and fixedly connected to the cover 3, and is configured to send air outside the cover 3 through the air outlet hole 31. The air outlet device 4 can be an existing air conveying device, such as a mechanism for driving turbine blades to rotate.

[0048] In some embodiments of the guide structure 15, referring to Figure 5 and Figure 6 , the guide structure 15 includes a guide rail 16 and a guide block 17, the guide rail 16 is fixedly arranged on the base 5, the guide block 17 is movably arranged on the lifting platform 11 and connected to the guide rail 16, and the guide block 17 is movably arranged on the guide rail 16. Figure 5 is a side view of the liftable tower fan in the embodiments of the present application, Figure 6 is Figure 5The local sectional view of the middle B section. The base 5 is provided with at least two vertically extending columns 51, and the columns 51 are provided with vertically extending guide holes 511; the bottom of the lifting platform 11 is provided with a guide shaft 111 configured as the guide structure 15, the guide shaft 111 vertically extends and is slidably arranged in the guide hole 511. For example, the at least two vertically extending columns 51 are integrally formed or fixed by welding on the base 5 by casting, injection molding or the like, and the vertically extending guide holes 511 are processed on the columns 51. The dimensional accuracy of the guide holes 511 needs to meet the requirements that the guide shaft 111 can smoothly slide and there is no obvious shaking. At the same time, the guide shaft 111 is installed at the bottom of the lifting platform 11 corresponding to the position of the column 51, and the guide shaft 111 and the lifting platform 11 can be fixed by welding, integrally formed or connected by fasteners, etc. to ensure that the guide shaft 111 vertically extends and is perpendicular to the lifting platform 11. The lifting platform 11 is placed above the base 5, and the guide shaft 111 vertically penetrates the guide hole 511 to realize the connection of the lifting platform 11 and the base 5 through the guide structure 15. The lifting platform 11 can vertically move along the guide hole 511 and cannot rotate circumferentially.

[0049] Referring to Figure 2 and Figure 6 The nut 13 can be fixed on the base 5 by the following method: the nut 13 is fixedly provided with a connecting seat 131 on the outside, the column 51 is fixedly provided with a connecting plate 512 on the outside, and the connecting plate 512 is fixedly connected with the connecting seat 131 by screws. For example, the connecting seat 131 is fixedly provided on the outside of the nut 13 by welding, casting or the like, and screw holes are reserved on the connecting seat 131. The connecting plate 512 is fixedly provided on the outside of the column 51 at the corresponding position by welding or integrally formed, and screw holes are also reserved on the connecting plate 512. During installation, the connecting seat 131 and the connecting plate 512 are aligned, the screw holes are one-to-one corresponding, then the screws are passed through the screw holes and fastened by nuts to realize the fixed connection of the connecting plate 512 and the connecting seat 131, and then the nut 13 is fixed on the base 5.

[0050] In some embodiments in which the lead screw 12 is rotatably connected with the lifting platform 11, referring to Figure 4 and Figure 6As shown, the bottom of the lifting platform 11 is provided with a first bearing 112, and the top of the lead screw 12 is fixedly provided with a bearing sleeve 121, and the first bearing 112 and the bearing sleeve 121 are rotatably connected. As an example, a mounting hole is reserved at the bottom of the lifting platform 11, the first bearing 112 is installed into the mounting hole, and the first bearing 112 is fixed by using a bearing pressing cover, a clasp spring or the like, so as to ensure that the first bearing 112 is stably installed at the bottom of the lifting platform 11 and can normally rotate. The bearing sleeve 121 is fixedly arranged at the top of the lead screw 12 by welding, casting or machining, and the bearing sleeve 121 is sleeved on the first bearing 112, so that the lead screw 12 can be rotatably connected with the first bearing 112 through the bearing sleeve 121.

[0051] In some embodiments in which the gear 22 is fixedly connected with the lifting platform 11 and rotatably connected with the rotating platform 21, referring to Figure 4 and Figure 6 As shown, the top of the lifting platform 11 is fixedly provided with a vertically extending convex shaft 113, the gear 22 is located at the upper end of the convex shaft 113 and is fixedly connected with the convex shaft 113 by a bolt, and the middle of the rotating platform 21 is provided with a second bearing 211 and is rotatably connected with the convex shaft 113 through the second bearing 211. As an example, the vertically extending convex shaft 113 is fixedly arranged at the top of the lifting platform 11 by welding or integral molding, the gear 22 is placed at the upper end of the convex shaft 113, a bolt is passed through the reserved holes of the gear 22 and the convex shaft 113, and a nut is used for fastening, so as to realize the fixed connection of the gear 22 and the convex shaft 113. Meanwhile, a mounting hole is reserved in the middle of the rotating platform 21, the second bearing 211 is installed into the mounting hole, and the second bearing 211 is fixed by using a bearing pressing cover, a clasp spring or the like, the rotating platform 21 is sleeved on the convex shaft 113, the second bearing 211 cooperates with the convex shaft 113, the rotatable connection of the rotating platform 21 and the convex shaft 113 is realized, and the gear 22 and the rotating platform 21 can relatively rotate.

[0052] In some embodiments, referring to Figure 1 and Figure 4 As shown, the inner side of the cover 3 is provided with at least two rows of vertically arranged ribs 32, the ribs 32 form clamping grooves 321 therebetween, and the edge of the rotating platform 21 is embedded in the clamping grooves 321. As an example, the clamping grooves 321 are formed between adjacent ribs 32, and the width of the clamping grooves 321 is slightly greater than the thickness of the edge of the rotating platform 21, so as to ensure that the edge of the rotating platform 21 can be smoothly embedded in the clamping grooves 321. During installation, the edge of the rotating platform 21 is aligned with the clamping grooves 321, the cover 3 is slowly lowered, the edge of the rotating platform 21 is embedded in the clamping grooves 321, the connection of the cover 3 and the rotating platform 21 is realized, and the cover 3 and the rotating platform 21 can relatively rotate.

[0053] Referring to Figure 1As shown, in order to facilitate the installation of each part, the outer cover 3 comprises a first shell 33 and a second shell 34 distributed in the horizontal direction and detachably connected, and the rotating table 21 and the air outlet device 4 are fixedly connected with the first shell 33 by screws. Specifically, the first shell 33 and the second shell 34 are provided with reserved connecting holes and screw holes, the connecting holes are used to realize the detachable connection between the first shell 33 and the second shell 34, and the screw holes are used to connect with the rotating table 21 and the air outlet device 4. Shell connection: the first shell 33 and the second shell 34 are connected together by a detachable connection mode such as buckle, latch, etc., to form a complete outer cover 3. The screws are passed through the reserved holes on the rotating table 21 and the air outlet device 4, and the screw holes on the first shell 33, and the nuts are used for fastening, to realize the fixed connection of the rotating table 21 and the air outlet device 4 with the first shell 33.

[0054] When the height of the outer cover 3 is adjusted, the lifting motor 14 drives the screw rod 12 to rotate, since the nut 13 is fixed on the base 5, the screw rod 12 will rotate and move up and down by itself, thereby driving the lifting table 11 to move up and down. At the same time, since the lifting table 11 is rotatably connected with the screw rod 12 and is vertically movably connected with the base 5 through the guide structure 15, the lifting table 11 will not rotate with the screw rod 12, so that the lifting table 11 can drive the rotating table 21 and the outer cover 3 to move up and down, to realize the adjustment of the height of the outer cover 3. When the air outlet direction is adjusted, the rotating motor 24 installed on the rotating table 21 drives the driving gear 23 to rotate, thereby driving the rotating table 21 to rotate around the driven gear 22. Since the outer cover 3 is connected with the rotating table 21 and the air outlet device 4, the rotating table 21 can synchronously drive the outer cover 3 and the air outlet device 4 to rotate, to realize the adjustment of the air outlet angle.

[0055] In summary, the liftable tower fan has the following beneficial effects:

[0056] Flexible height and direction adjustment: through the cooperation of the lifting mechanism 1 and the steering mechanism 2, the liftable tower fan can realize the lifting and rotation of the outer cover 3 and the air outlet device 4, thereby flexibly adjusting the height and air supply direction of the outer cover 3. Specifically, the lifting motor 14 drives the screw rod 12 to rotate, drives the lifting table 11 to move up and down, and thereby realizes the adjustment of the height of the outer cover 3; the rotating motor 24 drives the driving gear 23 to rotate, drives the rotating table 21 to rotate around the driven gear 22, and thereby realizes the adjustment of the air outlet angle.

[0057] The packing volume is greatly reduced: compared with the traditional fixed-height tower fan, the height-adjustable tower fan can shrink the outer cover 3 and the air outlet device 4 to the lowest height during packaging, significantly reducing the product volume, reducing the packaging cost, and improving the transportation and storage efficiency. The air outlet angle is adjustable: although the product height is adjustable, the design of the application does not affect the adjustability of the air outlet angle. Users can freely adjust the height of the outer cover 3 and the air supply direction according to actual needs, and enjoy a more comfortable and personalized use experience. The space utilization is significantly improved: in a home or office environment, the height-adjustable tower fan can be flexibly adjusted according to the space size and use requirements. When not in use, the outer cover 3 and the air outlet device 4 can be shrunk to the lowest height to save space; when in use, adjust it to the appropriate height to meet the air supply requirements.

[0058] The above is only an optional embodiment of the application and is not intended to limit the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the protection scope of the application.

Claims

1. A tower fan that is liftable, characterized by, The utility model relates to a kind of lifting mechanism, steering mechanism, cover, air outlet device and pedestal comprising: The lifting mechanism includes lifting platform, screw rod, nut, lifting motor, the lifting platform is movably connected with pedestal vertically by guide structure, the nut is fixed on the pedestal, and located below the lifting platform, the screw rod is vertically arranged, and is connected with the nut by thread, the top of the screw rod is rotatably connected with the lifting platform, the lifting motor is installed on the lifting platform, and is drivingly connected with the screw rod, to drive the screw rod rotation; The steering mechanism includes rotating platform, fixed gear, movable gear and rotating motor, the rotating platform is rotatably arranged above the lifting platform, the fixed gear is fixedly connected with lifting platform, and is rotatably connected with the rotating platform, the rotating motor is installed on the rotating platform, and is connected with the movable gear, the movable gear is connected with the fixed gear; The cover is covered in the outside of the lifting mechanism and steering mechanism, and is fixedly connected with the rotating platform, and is provided with air outlet hole; The air outlet device is located in the inside of the cover, and is fixedly connected with the cover, and is configured to send air to the outside of cover through the air outlet hole. The pedestal is provided with at least two vertical columns, and the vertical column is provided with a vertical guide hole;The bottom of the lifting platform is provided with a guide shaft configured as a guide structure, the guide shaft extends vertically, and is slidably arranged in the guide hole.

2. The elevatable tower fan of claim 1, wherein, The nut is fixedly provided with a connecting seat outside, and the vertical column is fixedly provided with a connecting plate outside, and the connecting plate is fixedly connected with the connecting seat by screw.

3. The elevatable tower fan of claim 2, wherein, The bottom of the lifting platform is provided with a first bearing, and the top of the screw rod is fixedly provided with a bearing sleeve, and is rotatably connected with the first bearing by bearing sleeve.

4. The elevatable tower fan of claim 1, wherein, The top of the lifting platform is fixedly provided with a vertical convex shaft, and the fixed gear is located at the upper end of the convex shaft and is fixedly connected with the convex shaft by bolt;The rotating platform is provided with a second bearing in the middle, and is rotatably connected with the convex shaft by second bearing.

5. The elevatable tower fan of claim 1, wherein, The inside of the cover is provided with at least two rows of vertical rib strips, and the rib strips form a clamping groove, and the edge of the rotating platform is embedded in the clamping groove.

6. The elevatable tower fan of claim 1, wherein, The cover includes first shell and second shell distributed along horizontal direction and detachably connected, and the rotating platform and air outlet device are fixedly connected with the first shell by screw.

7. The elevatable tower fan of claim 1, wherein, ​

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