Foldable fan

Abstract

The utility model provides a foldable fan, which relates to the technical field of fans and comprises a base, a support rod and a fan main body. The fan is characterized in that the fan body is rotatably connected with the upper end of the supporting rod through a first rotating structure, and the air outlet face of the fan body is configured to be a panel cover capable of being attached to the base in a folded state. A panel cover of the base is provided with a containing groove matched with a front mesh enclosure of the fan body in appearance, in the folding state, the front mesh enclosure can be partially contained in the containing groove, and the vertical projection of the fan body and the vertical projection of the base at least partially coincide. Therefore, after being assembled, the folding table has the advantages that the overall size can be adjusted, and storage and transportation are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field especially relates to a collapsible fan. BACKGROUND

[0002] Electric fan is common household electrical appliances in family, generally includes base, support rod and fan main body. Through the motor in the fan main body drives the impeller rotation to drive air flow, to play the effect of cooling.

[0003] At present, most of the fan on the market can be through the fan main body and support rod between setting up the swing motor and realize the adjustment of the air supply angle. But this technical scheme also has some shortcomings, for example: the overall volume of the fan is too large after assembly, in transportation or storage, in order to save space, only can be split into parts, to reduce the space, but so, it is not conducive to some customers who can not assemble to purchase.

[0004] Therefore, a collapsible fan which can adjust the overall volume after assembly and is convenient for storage and transportation needs to be designed. UTILITY MODEL CONTENTS

[0005] The utility model discloses to the defects and the insufficient of prior art, provide a collapsible fan, solve above-mentioned technical problem, it has the advantage that the overall volume can be adjusted after assembly, and it is convenient for storage and transportation.

[0006] In order to realize the above-mentioned purpose, the utility model provides a collapsible fan, including:

[0007] Base, support rod and fan main body, the lower end of support rod is connected with base, and the upper end of support rod is rotatably connected with fan main body through first rotating structure, and in the folding state, the air outlet surface of fan main body is configured to be attached to the panel cover of base.

[0008] Optionally, the fan main body includes: a front mesh cover, a rear mesh cover, an impeller arranged between the front mesh cover and the rear mesh cover, and a first motor arranged between the rear mesh cover and the impeller for driving the impeller to rotate; the air outlet surface of the front mesh cover is a planar structure.

[0009] Optionally, the panel cover of the base has a receiving groove matched with the shape of the front mesh cover, and in the folding state, the front mesh cover can be at least partially received in the receiving groove, and the vertical projection of the fan main body and the base at least partially overlaps.

[0010] Optionally, a clamping block is arranged on the side of the support rod close to the air outlet direction and located on the panel cover, and a clamping groove matched with the clamping block is arranged on the bottom of the mesh cover of the fan main body.

[0011] Optionally, the first rotating structure comprises a support rod upper end with a first shaft hole, a rotating base with a first rotating shaft and connected with the fan body, and a damping sleeve ring between the rotating base and the support rod.

[0012] Optionally, an angle limiting protrusion is arranged along the axial direction on the inner periphery of the first shaft hole, and the first rotating shaft has an angle limiting sector groove matched with the angle limiting protrusion.

[0013] Optionally, the outer periphery of the fan body mesh cover has a connecting sleeve with a connecting groove matched with the shape of the outer periphery of the rotating base, and the rotating base is arranged in the connecting groove of the connecting sleeve.

[0014] Optionally, the support rod comprises a telescopic support outer tube arranged on the base, and a support inner tube clamped on the upper end of the support outer tube, and the support rod is rotatably connected with the fan body through the upper end of the support inner tube.

[0015] Optionally, the foldable fan further comprises a remote controller, and the panel cover has a receiving groove capable of accommodating the remote controller; and the remote controller is detachably arranged in the receiving groove through a magnetic attraction assembly.

[0016] Optionally, the base comprises a base body and a bottom cover, the lower end of the support rod is connected with the base body of the base, the center of the bottom cover has a second rotating shaft, and an inner toothed arc is arranged concentrically with the second rotating shaft; the base body has a second shaft hole rotatably matched with the second rotating shaft, a planetary gear meshed with the inner toothed arc, and a second motor driving the planetary gear to rotate.

[0017] Compared with the prior art, the application has the following advantages:

[0018] Since the fan body of the foldable fan is rotatably connected with the upper end of the support rod through the first rotating structure, in the folded state, the air outlet surface of the fan body is arranged to be attached to the panel cover of the base. Compared with the prior art in which the fan body cannot be folded to the panel cover of the base, when it is necessary to store or package and transport, the fan body of the assembled foldable fan can be rotated relative to the upper end of the support rod, and the air outlet surface of the fan body is attached to the panel cover of the base. In this way, the overall height of the foldable fan when stored can be reduced, and the overall structure of the foldable fan is more regular, so as to reduce the space required for storage or packaging, and facilitate storage and transportation. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description only constitute the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0020] Figure 1 Structure schematic view of the present application in use state;

[0021] Figure 2 Structure schematic view of the present application in folding state;

[0022] Figure 3 Explanatory view of part structure of the present application;

[0023] Figure 4 Explanatory view of part structure of the present application;

[0024] Figure 5 Structure schematic view of the present application from one perspective of the fan main body;

[0025] Figure 6 Explanatory view of part structure of the present application;

[0026] Figure 7 Structure schematic view of the present application of the supporting inner tube;

[0027] Figure 8 Structure schematic view of the present application of the base, supporting rod and remote controller;

[0028] Figure 9 Explanatory view of part structure of the present application;

[0029] Figure 10 Bottom view of the base main body of the present application.

[0030] Explanation of reference signs

[0031] 100 - foldable fan;

[0032] 1 - base; 11 - bottom cover; 111 - second rotating shaft; 112 - inner tooth arc; 113 - blocking rib; 114 - reinforcing rib; 12 - base main body; 121 - lower shell; 122 - panel cover; a - accommodating groove; b - accommodating groove; 13 - clamping block; c - assembly cavity; d - assembly hole; 14 - sliding bar; e - second shaft hole; 15 - planetary gear; 16 - second motor; 17 - transmission gear;

[0033] 2-supporting rod; 21-supporting outer tube; f- clamping hole; g- sliding groove; 22-supporting inner tube; h- first shaft hole; 23-angle limiting protrusion;

[0034] 3-fan body; 30-net cover; 31-front net cover; 32-rear net cover; 322-motor mounting seat; 33-impeller; 331-hub; 34-first motor; i- clamping groove; 35-convex rib; 36-connecting sleeve; j- connecting groove;

[0035] 4-first rotating structure; 41-rotating seat; 411-left half rotating seat; 412-right half rotating seat; 42-rotating sleeve; 43-first rotating shaft; k- angle limiting sector groove; 44-damping sleeve ring;

[0036] 5-remote controller;

[0037] 6-rechargeable power supply;

[0038] 7-control circuit board;

[0039] 8-USB charging interface. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described 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.

[0041] It should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "back", "side", "circumferential" and the like indicated in the present application indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the first, second, etc. words are only for distinguishing structures with the same or similar structures, and do not indicate a certain special limitation on the arrangement order or connection relationship.

[0042] Please refer to Figure 1 , Figure 2 , Figure 8 and Figure 9The utility model embodiment provides a kind of foldable fan 100, for accelerating indoor, or the air flow of outdoor, to play the role of cooling.The foldable fan 100 includes: base 1, support rod 2, fan body 3 and first rotating structure 4.Wherein, base 1 is mainly used to ensure the stability of foldable fan 100, while providing necessary structural support and function integration.Optionally, in the present embodiment, base 1 can include bottom cover 11 and base body 12.Base body 12 is made of lower shell 121 and panel cover 122.Cover inside lower shell 121 and panel cover 122 form the assembly cavity c of various components.Support rod 2 lower end and base 1 connect.Specifically, the lower end of support rod 2 and the base body 12 of base 1 connect.Fan body 3 is rotatably connected by first rotating structure 4 and the upper end of support rod 2.In use state, the air outlet direction of fan body 3 and support rod 2 are substantially 90 °.In folding state, the air outlet surface of fan body 3 is configured to be attached to the panel cover 122 of base 1.

[0043] Since the fan body 3 of the foldable fan 100 is rotatably connected by the first rotating structure 4 and the upper end of the support rod 2, in the folding state, the air outlet surface of the fan body 3 is configured to be attached to the panel cover 122 of the base 1. Compared with the prior art in which the fan body 3 cannot be folded relative to the panel cover 122 of the base 1, when storage or packaging is required, the fan body 3 of the assembled folding fan can be rotated relative to the upper end of the support rod 2, and the air outlet surface of the fan body 3 is attached to the panel cover 122 of the base 1. In this way, the overall height of the folding fan when stored can be reduced, and the overall structure of the folding fan is more regular, thereby reducing the space required for storage or packaging and facilitating storage and transportation.

[0044] Optionally, please refer to Figure 4 In the present embodiment, the fan body 3 includes: a front mesh cover 31, a rear mesh cover 32, an impeller 33, and a first motor 34. The front mesh cover 31 and the rear mesh cover 32 are cooperatively formed as a whole. Optionally, the front mesh cover 31 and the rear mesh cover 32 can be connected by clamping, screwing, or fastening. The impeller 33 is arranged between the front mesh cover 31 and the rear mesh cover 32; and the first motor 34 is arranged between the rear mesh cover 32 and the impeller 33, and is used to drive the impeller 33 to rotate. Specifically, the rear mesh cover 32 has a motor mounting seat 322 on the side facing the impeller 33; and the first motor 34 is arranged between the motor mounting seat 322 and the impeller 33 hub 331. Since the first motor 34 is arranged between the motor mounting seat 322 and the impeller 33 hub 331, the height of the overall fan body 3 can be reduced, thereby further reducing the overall volume of the folding fan. Optionally, the air outlet surface of the front mesh cover 31 of the fan body 3 is a planar structure. In this way, in the folding state, the air outlet surface of the fan body 3 can be integrally attached to the panel cover 122 of the base 1. In other embodiments, the air inlet surface of the rear mesh cover 32 is also substantially a planar structure.

[0045] In order to limit the movement of the fan body 3 relative to the base 1 in the folded state, optionally, please refer to Figure 1 、 Figure 2 and Figure 4 In this embodiment, the panel cover 122 of the base 1 has a receiving groove a matching the outer shape of the front grille 31, and in the folded state, the front grille 31 is entirely received in the receiving groove a. Of course, in other embodiments, the front grille 31 is partially received in the receiving groove a in the folded state, and the specific limitation is that the receiving groove a can limit the movement of the fan body 3 in the folded state. Optionally, the vertical projection of the fan body 3 and the base 1 at least partially overlaps. Specifically, in this embodiment, the outer periphery contour of the rear grille 32 of the fan body 3, except for the side region connected with the support rod 2, overlaps with the outer periphery contour of the base 1. In this way, the folding fan can be configured with a larger size of the fan body 3 under the condition that the area of the base 1 is constant, so as to improve the air volume.

[0046] In order to make the folding fan 100 in the folded state, the fan body 3 is locked on the panel cover 122 of the base 1, so as to facilitate transportation. Optionally, please refer to Figure 1 and Figure 5 In this embodiment, the support rod 2 is provided with a clamping block 13 on the side close to the air outlet direction and located on the panel cover 122. The bottom of the grille 30 of the fan body 3 is provided with a clamping groove i matched with the clamping block 13. Specifically, the rear grille 32 of the fan body 3 is provided with two axially extending protrusions 35 corresponding to the circumferential side of the support rod 2, and the two protrusions 35 and the outer periphery of the rear grille 32 form the above-mentioned clamping groove i. In this way, in the folded state, the fan body 3 can be clamped on the clamping block 13 on the panel cover 122 through the clamping groove i. Further, the purpose of fixing the fan body 3 is achieved.

[0047] Optionally, please refer to Figure 1 、 Figure 3 、 Figure 6 and Figure 7In the embodiment, the first rotating structure 4 comprises a first shaft hole h at the upper end of the support rod 2, a rotating base 41 with a first rotating shaft 43 and connected with the fan body 3, and a damping sleeve 44 between the rotating base 41 and the support rod 2. In this way, the damping rotation of the fan body 3 and the support rod 2 can be realized, so that the fan body 3 can be kept at a specific pitch angle. Specifically, the rotating base 41 comprises a left half rotating base 411, a right half rotating base 412, and a rotating sleeve 42. The left half rotating base 411 has part of the first rotating shaft 43, and the right half rotating base 412 has part of the first rotating shaft 43. When assembled, the left half rotating base 411 is inserted from one side of the first shaft hole h, the right half rotating base 412 is inserted from the other side of the first shaft hole h, and the left half rotating base 411 and the right half rotating base 412 are fixed by bolts (not shown in the figure), and then the rotating sleeve 42 is sleeved on the outer periphery of the left half rotating base 411 and the right half rotating base 412.

[0048] In order to limit the folding and overturning angle of the fan body 3 within a certain range, and avoid excessive overturning to damage the first rotating structure 4 or the fan body 3. Alternatively, in the embodiment, please refer to Figure 6 and Figure 7 The inner periphery of the first shaft hole h is provided with an angle limiting protrusion 23 in the axial direction, and the first rotating shaft 43 has an angle limiting sector slot k matched with the angle limiting protrusion 23. By controlling the angle of the angle limiting sector slot k, the rotating angle of the fan body 3 and the support rod 2 is limited.

[0049] In order to realize the quick assembly of the rotating base 41 and the fan body 3, alternatively, please refer to Figure 5 In the embodiment, the outer periphery of the fan body 3 has a connecting sleeve 36, and the connecting sleeve 36 has a connecting slot j matched with the shape of the outer periphery of the rotating base 41, and the rotating base 41 can be inserted and arranged in the connecting slot j of the connecting sleeve 36. In this way, when the fan body 3 and the rotating base 41 need to be assembled, the rotating base 41 can be directly inserted and aligned with the connecting slot j of the connecting sleeve 36, and then fixed by screws.

[0050] In order to adjust the height of the fan body 3 relative to the base 1, please refer to Figure 3 and Figure 8Optionally, in the embodiment, the support rod 2 comprises a support outer tube 21 arranged on the base 1 in a telescopic manner, and a support inner tube 22 arranged on the upper end of the support outer tube 21, and the support rod 2 is rotatably connected with the fan body 3 through the upper end of the support inner tube 22. Specifically, the base 1 is provided with an assembly hole d arranged vertically and matching the shape of the outer periphery of the support outer tube 21, and the support outer tube 21 is arranged in the assembly hole d in a movable manner, so as to adjust the height of the fan body 3. In addition, in order to lock the support outer tube 21 in the extreme position, optionally, in the embodiment, the bottom of the support outer tube 21 is provided with a clamping hole f, and the assembly hole d is provided with a clamping protrusion (not shown in the figure) matching the clamping hole f at the upper end extreme position and the lower end extreme position. The support outer tube 21 is locked with the base 1 through the clamping hole f and the clamping protrusion in the assembly hole d. In order to make the telescopic movement of the support outer tube 21 more stable, further, in the embodiment, the outer periphery of the assembly hole d is arranged with a sliding strip 14 in the axial direction, and the outer periphery of the support outer tube 21 is arranged with a sliding groove g matching the sliding strip 14.

[0051] In order to realize remote control of the foldable fan 100, please refer to Figure 8 Optionally, in the embodiment, the foldable fan 100 further comprises a remote controller 5. In order to avoid the remote controller 5 being placed randomly and not easy to find when in use, optionally, the panel cover 122 is provided with a containing groove b capable of containing the remote controller 5; and the remote controller 5 is arranged in the containing groove b in a detachable manner through a magnetic attraction assembly (not shown in the figure). In this way, when not in use, the remote controller 5 can be placed in the containing groove b.

[0052] The common oscillating fan is provided with an oscillating motor between the fan body 3 and the support rod 2 to realize the adjustment of the blowing angle; however, this prior art will cause the fan body 3 to swing unstably due to the too high center of gravity of the fan body 3. Optionally, please refer to Figures 8 to 10In the embodiment, the bottom cover 11 has a second rotating shaft 111 and an inner tooth arc 112. The second rotating shaft 111 is vertically arranged at the center of the bottom cover 11, and the inner tooth arc 112 is concentrically arranged with the second rotating shaft 111. Optionally, the second rotating shaft 111, the inner tooth arc 112 and the bottom cover 11 are integrally formed. In order to increase the supporting strength of the bottom cover 11, a plurality of reinforcing ribs 114 are arranged on the upper end surface of the bottom cover 11 in the circumferential and radial directions. The base body 12 has a second shaft hole e for rotationally cooperating with the second rotating shaft 111; a planetary gear 15 for engaging with the inner tooth arc 112, and a second motor 16 for driving the planetary gear 15 to rotate. Thus, when the second motor 16 drives the planetary gear 15 to rotate, the base body 12 can be rotated as a whole around the second rotating shaft 111 due to the engagement between the planetary gear 15 and the inner tooth of the inner tooth arc 112, and the rotationally cooperating between the second shaft hole e of the base body 12 and the second rotating shaft 111 of the bottom cover 11, so as to make the fan body 3 rotate relative to the bottom cover 11. After reaching the preset angle, the second motor 16 reversely rotates, so that the fan body 3 rotates relative to the bottom cover 11 in the opposite direction, and the above process is repeated, so as to realize the swinging of the fan body 3. Since the foldable fan 100 is realized to swing by the base body 12 and the bottom cover 11, the center of gravity is low, and thus the fan has the advantage of swinging more stably compared with the prior art. Specifically, in the embodiment, the output end of the second motor 16 is driven by the transmission gear 17 and the planetary gear 15. In order to avoid the planetary gear 15 from being disengaged from the inner tooth arc 112, optionally, in the embodiment, the blocking ribs 113 are arranged at both limit positions of the inner tooth arc 112.

[0053] Optionally, please refer to Figure 9 In the embodiment, the base body 12 further has a chargeable power supply 6 and a control circuit board 7 (not shown in the figure) arranged in the assembly cavity c. The chargeable power supply 6 and the control circuit board 7 are electrically connected, and the second motor 16 and the control circuit board 7 are electrically connected. The base 1 is provided with a USB charging interface 8 for charging the chargeable power supply 6. In addition, the assembly hole d, the supporting outer tube 21, the supporting inner tube 22, the rotating seat 41, the connecting sleeve 36 and the mesh cover 30 are all provided with through holes for the power supply line (not shown in the figure) to pass through, so as to electrically connect the first motor 34 with the control circuit board 7 through the power supply line.

[0054] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A foldable fan comprising a base (1), a support rod (2) and a fan body (3), the lower end of the support rod (2) being connected to the base (1), characterized in that, The fan body (3) is rotatably connected with the upper end of the support rod (2) through the first rotating structure (4), and the air outlet surface of the fan body (3) is configured to be attached to the panel cover (122) of the base (1) in the folded state.

2. The foldable fan of claim 1, wherein, The fan body (3) comprises a front mesh cover (31), a rear mesh cover (32), an impeller (33) arranged between the front mesh cover (31) and the rear mesh cover (32), and a first motor (34) arranged between the rear mesh cover (32) and the impeller (33) for driving the impeller (33) to rotate; the air outlet surface of the front mesh cover (31) is a planar structure.

3. The foldable fan of claim 2, wherein, The panel cover (122) of the base (1) has a receiving groove (a) matched with the shape of the front mesh cover (31), and the front mesh cover (31) can be at least partially accommodated in the receiving groove (a) in the folded state, and the vertical projection of the fan body (3) and the base (1) at least partially overlaps.

4. The foldable fan of claim 1, wherein, A clamping block (13) is arranged on the side of the support rod (2) close to the air outlet direction and located on the panel cover (122), and a clamping groove (i) matched with the clamping block (13) is arranged on the bottom of the mesh cover (30) of the fan body (3).

5. The foldable fan of claim 1, wherein, The first rotating structure (4) comprises a support rod (2) upper end having a first shaft hole (h), a rotating seat (41) having a first rotating shaft (43) and connected with the fan body (3), and a damping sleeve (44) located between the rotating seat (41) and the support rod (2).

6. The foldable fan of claim 5, wherein, An angle limiting protrusion (23) is arranged on the inner periphery of the first shaft hole (h) in the axial direction, and the first rotating shaft (43) has an angle limiting sector groove (k) matched with the angle limiting protrusion (23).

7. The foldable fan of claim 6, wherein, The mesh cover (30) of the fan body (3) has a connecting sleeve (36) on the outer periphery, the connecting sleeve (36) has a connecting groove (j) matched with the shape of the outer periphery of the rotating seat (41), and the rotating seat (41) can be inserted and arranged in the connecting groove (j) of the connecting sleeve (36).

8. The foldable fan of claim 1, wherein, The support rod (2) comprises a support outer tube (21) arranged on the base (1) in a telescopic manner, and a support inner tube (22) clamped on the upper end of the support outer tube (21), and the support rod (2) is rotatably connected with the fan body (3) through the upper end of the support inner tube (22).

9. The foldable fan of claim 1, wherein, A remote controller (5) is further included, and the panel cover (122) has a containing groove (b) for accommodating the remote controller (5); and the remote controller (5) is detachably arranged in the containing groove (b) through a magnetic attraction assembly.

10. The foldable fan of claim 1, wherein, The base (1) comprises a bottom cover (11) and a base body (12), the lower end of the support rod (2) is connected with the base body (12) of the base (1); the bottom cover (11) is provided with a second rotating shaft (111) in the center, and an inner tooth arc (112) is arranged concentrically with the second rotating shaft (111); the base body (12) is provided with a second shaft hole (e) matched with the second rotating shaft (111), a planetary gear (15) engaged with the inner tooth arc (112), and a second motor (16) driving the planetary gear (15) to rotate.

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