Wide-angle fan

Abstract

The utility model discloses a wide-angle fan which comprises a support, a rotating arm and two fan bodies, the first end of the rotating arm is rotationally connected to the support, a rotating driving assembly is arranged at the joint of the rotating arm and the support, and the rotating driving assembly is used for driving the rotating arm to rotate in a reciprocating mode within a preset angle. The two fan bodies are symmetrically arranged on the two sides of the rotating arm, first hinge parts are arranged on the edges of the fan bodies, second hinge parts in one-to-one correspondence with the first hinge parts are arranged at the second end of the rotating arm, and the first hinge parts and the second hinge parts are connected through limiting shaft assemblies in a hinged mode. The limiting shaft assembly is used for limiting the fan body to the angle position after overturning. The orientation of the fan can be conveniently adjusted and positioned, and wide-angle air supply can be achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to a fan, in particular to a wide-angle fan. BACKGROUND

[0002] Portable fans are usually used in outdoor activities, and the structure of a common portable fan can be seen in the Chinese patent publication CN118088475A, entitled "Portable fan and fan combination set". The portable fan includes a body and a base, the body includes a fan unit, a holding unit and a control unit, and the first end of the fan unit and the holding unit is connected. Such a fan uses a single fan unit that can be turned over to blow air, and the blowing direction of the fan unit is limited to the direction after turning over. In use, it cannot achieve wide-angle automatic air supply, so it cannot meet the needs of multiple users. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a fan that can be easily adjusted and positioned to achieve wide-angle air supply, in view of the deficiencies of the prior art.

[0004] To solve the above technical problems, the present application adopts the following technical solutions.

[0005] A wide-angle fan includes a support, a rotating arm and two fan bodies. The first end of the rotating arm is rotatably connected to the support. A rotating drive assembly is provided at the connection between the rotating arm and the support, which is used to drive the rotating arm to reciprocally rotate within a predetermined angle. Two fan bodies are symmetrically provided on both sides of the rotating arm. The edge of the fan body is provided with a first hinge part. The second end of the rotating arm is provided with a second hinge part corresponding to the first hinge part. The first hinge part and the second hinge part are hingedly connected through a limiting shaft assembly, which is used to limit the angle position of the fan body after turning over.

[0006] Preferably, the top of the support is provided with a through hole, and the edge of the through hole at one end of the inner side of the support is provided with an annular stepped groove. A bearing is arranged in the annular stepped groove. The end face of the first end of the rotating arm is formed with a convex ring. The bearing is sleeved on the outer side of the convex ring. A support frame is fixed to the inner side of the support. A drive motor is fixed in the rotating arm. The drive end of the drive motor is provided with a rotating shaft, and the rotating shaft is in transmission connection with the support frame.

[0007] Preferably, the end face of the convex ring is fixed with an abutting ring, and the outer diameter of the abutting ring is greater than the inner diameter of the bearing. The inner ring of the bearing is clamped between the abutting ring and the groove bottom of the annular stepped groove.

[0008] Preferably, a circular arc shaped limiting groove with a preset length is arranged at the bottom of the annular stepped groove, and the outer sidewall of the convex ring forms a limiting block which is arranged in the circular arc shaped limiting groove and is in sliding fit with the circular arc shaped limiting groove.

[0009] Preferably, the support frame comprises a circular accommodating opening, and the abutting ring is arranged in the circular accommodating opening and has a gap therebetween.

[0010] Preferably, the support frame comprises a radial cross beam, and a shaft sleeve is arranged at the middle of the radial cross beam, and the rotating shaft is inserted into the shaft sleeve and is in mutual clamping engagement with the shaft sleeve.

[0011] Preferably, the edge of the support frame is provided with a plurality of fixing portions, the inner side of the support base is formed with a plurality of fixing columns, the fixing portions correspond to the fixing columns one by one, and the fixing portions and the fixing columns are fixedly connected by screws.

[0012] Preferably, the second end of the rotating arm is provided with a reversible handle, and the end of the support base away from the rotating arm is provided with a reversible hook.

[0013] Preferably, the support base is internally provided with a main board, two loudspeakers and a battery, and the loudspeakers, the fan body, the driving motor and the battery are electrically connected to the main board.

[0014] Preferably, the edge of the fan body is provided with a plurality of LED light strips, the outer side of the LED light strips is covered with a lampshade, the center of the fan body is provided with a scented oil accommodating groove, and a detachable cover plate is arranged on the opening of the scented oil accommodating groove.

[0015] In the wide-angle fan disclosed in the application, the first hinge part and the second hinge part are hingedly connected, the fan body is limited to the angle position after being turned over by using the limiting shaft assembly after a user adjusts the angle position of the fan body, and because the two fan bodies are symmetrically arranged on the two sides of the rotating arm, the user can adjust the two fan bodies to the left-right symmetric or asymmetric positions, the two fan bodies can blow air in a wide-angle range to the space when the rotating driving assembly drives the rotating arm to reciprocating rotate within a preset angle, and the application is convenient to adjust and position the fan direction, and better meets the application requirement. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of the wide-angle fan of the application.

[0017] Figure 2 It is a side view of the wide-angle fan when it is hung upside down.

[0018] Figure 3 It is an internal structure exploded view of the support base.

[0019] Figure 4 A bottom view of the connection between the support and the rotating arm;

[0020] Figure 5 Disassembly of the connection between the support and the rotating arm Figure 1 ;

[0021] Figure 6 Disassembly of the connection between the support and the rotating arm Figure 2 ;

[0022] Figure 7 This is a structural diagram of the fan body;

[0023] Figure 8 This is a structural diagram of the first hinge section;

[0024] Figure 9 An exploded view of the second hinge and the limiting shaft assembly;

[0025] Figure 10 This is a structural diagram of the limiting sleeve;

[0026] Figure 11 Cross-sectional view of the limiting hinge mechanism Figure 1 ;

[0027] Figure 12 Cross-sectional view of the limiting hinge mechanism Figure 2 . Detailed Implementation

[0028] The present invention will now be described in more detail with reference to the accompanying drawings and embodiments.

[0029] This invention discloses a wide-angle fan, combined with Figures 1 to 7 As shown, it includes a support 1, a rotating arm 2, and two fan bodies 3. The first end of the rotating arm 2 is rotatably connected to the support 1. A rotation drive assembly 5 is provided at the connection between the rotating arm 2 and the support 1. The rotation drive assembly 5 is used to drive the rotating arm 2 to reciprocate within a preset angle. The two fan bodies 3 are symmetrically arranged on both sides of the rotating arm 2. The edge of the fan body 3 is provided with a first hinge portion 30. The second end of the rotating arm 2 is provided with a second hinge portion 20 corresponding to the first hinge portion 30. The first hinge portion 30 and the second hinge portion 20 are hinged together by a limiting shaft assembly 4. The limiting shaft assembly 4 is used to restrict the fan body 3 to the angle position after flipping.

[0030] In the structure, the first hinge part 30 and the second hinge part 20 are hingedly connected, when the user adjusts the angular position of the fan body 3, the fan body 3 is limited to the angular position after turning over by the limiting shaft assembly 4, meanwhile, since the two fan bodies 3 are symmetrically arranged on the two sides of the rotating arm 2, the user can adjust the two fan bodies 3 to the symmetric or asymmetric positions, when the rotating drive assembly 5 drives the rotating arm 2 to reciprocating rotate within the preset angle, the two fan bodies 3 can blow air to the space within a wide angle range, meanwhile, the fan direction can be conveniently adjusted and positioned, and the application requirement is better met.

[0031] As an application example, the angle that the rotating drive assembly 5 can drive the rotating arm 2 to rotate can be 90°, based on the angle setting, when the rotating arm 2 is forward or reverse rotated for one cycle, each fan body 3 can blow air to the 180° angle range, based on the joint action of the two fan bodies 3, the full angle blowing function can be realized.

[0032] Regarding the mounting mode of the rotating arm 2, in the embodiment, the rotating arm 2 is mounted on the support 1 by the rotating drive assembly 5. Figures 3 to 6 As shown in the figure, the top of the support 1 is provided with a through hole 10, the through hole 10 is provided with an annular stepped groove 11 at the edge of one end of the inner side of the support 1, the annular stepped groove 11 is provided with a bearing 12, the first end surface of the rotating arm 2 is formed with a convex ring 21, the bearing 12 is sleeved on the outer side of the convex ring 21, the inner side of the support 1 is fixed with a support frame 13, the rotating arm 2 is internally fixed with a drive motor 22, the drive end of the drive motor 22 is provided with a rotating shaft 23, the rotating shaft 23 is in transmission connection with the support frame 13.

[0033] In the structure, by arranging the bearing 12, the convex ring 21 can rotate relative to the annular stepped groove 11, when the drive motor 22 operates, the rotating shaft 23 applies a torsion to the support frame 13, and then drives the rotating arm 2 to rotate.

[0034] As a preferred mode, the end surface of the convex ring 21 is fixed with an abutting ring 24, the outer diameter of the abutting ring 24 is greater than the inner diameter of the bearing 12, the inner ring of the bearing 12 is clamped between the abutting ring 24 and the groove bottom of the annular stepped groove 11. Based on the cooperation of the abutting ring 24, the annular stepped groove 11 and the bearing 12, the rotating arm 2 can be rotatably connected to the support 1, and the auxiliary rotating effect of the bearing 12 can be exerted, so as to reduce the driving resistance of the drive motor 22.

[0035] The embodiment has a limitation on the maximum rotation angle of the rotating arm 2. Specifically, the bottom of the annular stepped groove 11 is provided with a preset-length arc-shaped limiting groove 14, and the outer sidewall of the convex ring 21 forms a limiting block 25 which is arranged in the arc-shaped limiting groove 14 and is in sliding fit with the arc-shaped limiting groove 14. Based on the sliding fit between the limiting block 25 and the arc-shaped limiting groove 14, the rotation stroke of the rotating arm 2 can be limited, so as to avoid the adverse effect on the wire passing through the rotating arm 2 due to the excessively large rotation angle of the rotating arm 2.

[0036] In order to make the abutting ring 24 well cooperate with the support frame 13, in the embodiment, the support frame 13 comprises a circular accommodating opening 130, and the abutting ring 24 is arranged in the circular accommodating opening 130 and has a gap therebetween.

[0037] As a preferred mode, the support frame 13 comprises a radial cross beam 131, and the middle of the radial cross beam 131 is provided with a shaft sleeve 132, and the rotating shaft 23 is inserted into the shaft sleeve 132 and is clamped with each other. The two sides of the rotating shaft 23 have an excircle, and the inner hole of the shaft sleeve 132 has an incircle. Based on the abutting fit between the excircle and the incircle, the rotating shaft 23 is clamped in the shaft sleeve 132.

[0038] Regarding the preferred fixing mode of the support frame 13, in the embodiment, the edge of the support frame 13 is provided with a plurality of fixing portions 133, and the inner side of the support base 1 is formed with a plurality of fixing columns 134, and the fixing portions 133 correspond to the fixing columns 134 one by one and are fixedly connected through screws.

[0039] Please refer to Figure 1 and Figure 3 In the embodiment, the second end of the rotating arm 2 is provided with a reversible handle 6, and the end of the support base 1 away from the rotating arm 2 is provided with a reversible hook 7. The handle 6 can facilitate the user to lift the fan, and the hook 7 can facilitate the user to hang the fan upside down at a proper position.

[0040] Please refer to Figure 3 In the embodiment, the support base 1 is provided with a main board 15, two loudspeakers 16 and a battery, and the loudspeakers 16, the fan body 3, the driving motor 22 and the battery are electrically connected to the main board 15. The main board 15 can be provided with a Bluetooth module and the like, and the user can play music through wireless communication with a mobile phone.

[0041] The embodiment also has the functions of illuminating lamp or atmosphere lamp, and also has the function of diffusing aromatherapy. Specifically, the edge of the fan body 3 is provided with a plurality of LED light strips 31, the outer side of the LED light strip 31 is covered with a lampshade 32, the center of the fan body 3 is provided with an aromatherapy containing groove 33, and the opening of the aromatherapy containing groove 33 is covered with a detachable cover plate 34.

[0042] Regarding the limiting hinge mechanism adopted in the present application, combined with Figures 8 to 12 as shown in the drawings, it comprises a first hinge part 30, a second hinge part 20 and a limiting shaft assembly 4, the first hinge part 30 and the second hinge part 20 are coaxially arranged, the limiting shaft assembly 4 comprises a clamping end head 40, a shaft rod 41 and a limiting sleeve 42 with elasticity, the clamping end head 40 is arranged in the first hinge part 30 and is clamped and connected with the first hinge part 30, the end surface of the second hinge part 20 is provided with a containing opening 200, the inner wall of the containing opening 200 is uniformly distributed with a plurality of clamping grooves 201 in the circumferential direction, the limiting sleeve 42 is arranged in the containing opening 200, the edge of the limiting sleeve 42 is formed with at least one outward protruding protruding part 420, the protruding part 420 is clamped in the clamping groove 201, the end of the clamping end head 40 is aligned with the end of the limiting sleeve 42 and is clamped and connected with the limiting sleeve 42, the shaft rod 41 passes through the clamping end head 40, the limiting sleeve 42 and the second hinge part 20 in sequence, when the first hinge part 30 is turned over relative to the second hinge part 20, the clamping end head 40 conducts torsion to the limiting sleeve 42, the limiting sleeve 42 is elastically deformed to make the protruding part 420 slide along the plurality of clamping grooves 201 in sequence, when the first hinge part 30 is turned over, based on the clamping relationship between the protruding part 420 and the clamping groove 201, the first hinge part 30 is limited at the angle position after turning over.

[0043] In the above structure, when the first hinge part 30 is turned over relative to the second hinge part 20, based on the clamping connection relationship between the clamping end head 40 and the first hinge part 30, the clamping end head 40 conducts torsion to the limiting sleeve 42, under the action of the torsion, the limiting sleeve 42 is elastically deformed, with the turning over of the first hinge part 30, the protruding part 420 slides along the plurality of clamping grooves 201 in sequence, when the first hinge part 30 is turned over, the protruding part 420 is naturally clamped into the corresponding clamping groove 201 under the elastic action, thereby limiting the first hinge part 30 at the angle position after turning over. The limiting hinge mechanism of the above structure not only has compact structure, but also has stronger hinge positioning performance, and the overall structure is more reliable.

[0044] In order to make the hinge relationship more stable and reliable, the embodiment comprises two first hinge parts 30, and the second hinge part 20 is arranged between the two first hinge parts 30.

[0045] Corresponding to the above structure, in the embodiment, the limiting shaft assembly 4 comprises two clamping end heads 40 and two limiting sleeves 42, the two clamping end heads 40 are arranged in the two first hinge parts 30, and the two limiting sleeves 42 are arranged in the accommodating openings 200 at the two ends of the second hinge part 20.

[0046] As a preferred mode, the end face of the first hinge part 30 away from the second hinge part 20 is formed with a polygonal hole 300, the clamping end head 40 is a polygonal end head, and the clamping end head 40 is arranged in the polygonal hole 300 and is clamped and connected with the polygonal hole 300. In the embodiment, the polygonal end head and the polygonal hole are matched to keep a reliable clamping relationship between the clamping end head 40 and the first hinge part 30, so that the situation of slipping off during the turning process is avoided.

[0047] Regarding the preferred transmission relationship between the clamping end head 40 and the limiting sleeve 42, in the embodiment, the end of the clamping end head 40 is formed with two clamping claws 400, the end of the limiting sleeve 42 is formed with a slot 421, and the two clamping claws 400 are inserted into the slot 421.

[0048] Further, one end of the shaft rod 41 is provided with a rod cap 410, the other end of the shaft rod 41 is screwed with a nut 411, the end of the clamping end head 40 away from the limiting sleeve 42 is formed with an end face recess 401, the rod cap 410 and the nut 411 are arranged in the end face recess 401 of the two clamping end heads 40, and the nut 411 is clamped and connected with the inner wall of the end face recess 401.

[0049] In the above structure, based on the fastening relationship between the nut 411 and the shaft rod 41, the first hinge part 30, the second hinge part 20 and the limiting shaft assembly 4 can be tightly and reliably assembled.

[0050] In order to balance the clamping force on both sides of the limiting sleeve 42, in the embodiment, the edge of the limiting sleeve 42 is formed with two symmetrically arranged protruding parts 420.

[0051] As a preferred mode, the opening of the polygonal hole 300 is covered with an end cover 44, and the end cover 44 is clamped and matched with the polygonal hole 300. The end cover 44 has a covering effect on the polygonal hole 300, which not only prevents dust and dirt, but also has better appearance.

[0052] Further, the bottom of the polygonal hole 300 is provided with an avoidance slot hole 301 for the clamping claw 400 to pass through.

[0053] As a preferred mode, the limiting sleeve 42 is in a circular ring shape, and two parallel clamping portions 422 are arranged on the inner side of the limiting sleeve 42, and the insertion slot 421 is formed between the two clamping portions 422.

[0054] In the above structure, the limiting sleeve 42 in a circular ring shape has good elasticity and toughness, so that in the process of turning over of the first hinge portion 30, the limiting sleeve 42 can slightly deform, so that the protruding portion 420 can overcome the resistance of the clamping slot 201 and slide along the plurality of clamping slots 201 in turn, and in addition, after the turning over of the first hinge portion 30 is completed, based on the elasticity of the limiting sleeve 42 itself, the protruding portion 420 can be reliably clamped in the clamping slot 201, so as to achieve the purpose of positioning after turning over.

[0055] The above description is only the preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement or improvement within the technical scope of the present application shall be included in the protection scope of the present application.

Claims

1. A wide-angle fan, characterized by, The utility model provides a kind of fan, including support, rotating arm and two fan bodies, the first end of the rotating arm is rotatably connected to the support, the connecting place of the rotating arm and the support is equipped with rotary drive component, the rotary drive component is used to drive the rotating arm to reciprocate rotation within preset angle, two fan bodies are symmetrically arranged at the two sides of the rotating arm, the edge of the fan body is equipped with first hinged part, the second end of the rotating arm is equipped with second hinged part corresponding to the first hinged part, the first hinged part and the second hinged part are hingedly connected by limiting shaft assembly, and the limiting shaft assembly is used to limit the fan body to the angle position after turning over.

2. The wide-angle fan of claim 1, wherein The top of the support is provided with a through hole, the edge of the through hole at the inner side of the support is provided with an annular stepped groove, a bearing is arranged in the annular stepped groove, the end face of the first end of the rotating arm is formed with a convex ring, the bearing is sleeved on the outer side of the convex ring, a support frame is fixed on the inner side of the support, a drive motor is fixed in the rotating arm, a rotating shaft is arranged on the driving end of the drive motor, and the rotating shaft is in transmission connection with the support frame.

3. The wide-angle fan of claim 2, wherein, The end face of the convex ring is fixed with an abutment ring, the outer diameter of the abutment ring is larger than the inner diameter of the bearing, and the inner ring of the bearing is clamped between the abutment ring and the groove bottom of the annular stepped groove.

4. The wide-angle fan of claim 2, wherein, The groove bottom of the annular stepped groove is provided with a circular-arc limiting groove with a preset length, and the outer wall of the convex ring is formed with a limiting stopper, which is arranged in the circular-arc limiting groove and is in sliding fit with the circular-arc limiting groove.

5. The wide-angle fan of claim 3 wherein, The support frame includes a circular receiving port, and the abutment ring is arranged in the circular receiving port and has a gap therebetween.

6. The wide-angle fan of claim 5 wherein, The support frame includes a radial cross beam, and a shaft sleeve is arranged at the middle of the radial cross beam, the rotating shaft is inserted into the shaft sleeve and is in mutual clamping.

7. The wide-angle fan of claim 2 wherein, The edge of the support frame is provided with a plurality of fixing portions, the inner side of the support is formed with a plurality of fixing columns, the fixing portions correspond to the fixing columns one by one, and the fixing portions and the fixing columns are fixedly connected by screws.

8. The wide-angle fan of claim 1 wherein, The second end of the rotating arm is provided with a reversible handle, and one end of the support away from the rotating arm is provided with a reversible hook.

9. The wide-angle fan of claim 2 wherein, The support is provided with a main board, two loudspeakers and a battery, and the loudspeakers, the fan bodies, the drive motor and the battery are electrically connected to the main board.

10. The wide-angle fan of claim 1 wherein, The edge of the fan body is provided with a plurality of LED light strips, the outer side of the LED light strip is covered with a lampshade, the center of the fan body is provided with a aromatherapy containing groove, and a detachable cover plate is arranged on the opening of the aromatherapy containing groove.

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