Wide-angle fan

Abstract

The invention 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 invention relates to a fan, and in particular to a wide-angle fan. Background Art

[0002] Portable fans are usually used in outdoor activities. For common portable fan structures, please refer to the Chinese patent publication with publication number CN118088475A and name "Portable Fan and Fan Combination Kit", which states: "The portable fan includes a main body and a base, the main body includes a fan unit, a grip unit and a control unit, and the fan unit is connected to the first end of the grip unit." This type of fan uses a single flip fan unit for blowing air. The blowing direction of the fan unit is limited by the direction after the flip adjustment. During use, wide-angle automatic air supply cannot be achieved, so it cannot meet the needs of multiple people. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a fan which is convenient for adjusting and positioning the direction of the fan and can realize wide-angle air supply in view of the deficiencies in the prior art.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions.

[0005] A wide-angle fan comprises a support, a rotating arm and two fan bodies, wherein 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, and the rotating drive assembly is used to drive the rotating arm to reciprocate within a preset angle, and the two fan bodies are symmetrically arranged on both sides of the rotating arm, the edge of the fan body is provided with a first hinge part, and the second end of the rotating arm is provided with a second hinge part corresponding to the first hinge part one by one, and the first hinge part and the second hinge part are hingedly connected by a limiting shaft assembly, and the limiting shaft assembly is used to limit the fan body to an angular position after flipping.

[0006] Preferably, a through hole is provided on the top of the support, and an annular step groove is provided on the edge of the through hole located at one inner end of the support, a bearing is provided in the annular step groove, a convex ring is formed on the end surface of the first end of the rotating arm, and the bearing sleeve is arranged 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 driving end of the drive motor is provided with a rotating shaft, and the rotating shaft is transmission-connected to the support frame.

[0007] Preferably, an abutment ring is fixed to the end face of the convex 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 bottom of the annular step groove.

[0008] Preferably, a circular arc-shaped limit groove of a preset length is formed at the bottom of the annular step groove, and a limit stopper is formed on the outer side wall of the convex ring. The limit stopper is arranged in the circular arc-shaped limit groove and the two are slidably matched.

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

[0010] Preferably, the support frame includes a radial crossbeam, a shaft sleeve is provided in the middle of the radial crossbeam, the rotating shaft is inserted into the shaft sleeve and the two are engaged with each other.

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

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

[0013] Preferably, a mainboard, two speakers and a battery are disposed in the support, and the speakers, the fan body, the driving motor and the battery are electrically connected to the mainboard respectively.

[0014] Preferably, a plurality of LED light strips are provided at the edge of the fan body, a lamp cover is provided on the outer side of the LED light strip, an aromatherapy containing groove is provided at the center of the fan body, and a detachable cover is covered at the opening of the aromatherapy containing groove.

[0015] In the wide-angle fan disclosed in the present invention, the first hinge part and the second hinge part are hingedly connected. When the user adjusts the angular position of the fan body, the limit shaft assembly is used to limit the fan body to the angular position after flipping. At the same time, because the two fan bodies are symmetrically arranged on both sides of the rotating arm, the user can adjust the two fan bodies to left-right symmetrical or asymmetrical positions respectively. When the rotating drive assembly drives the rotating arm to reciprocate within a preset angle, the two fan bodies can supply air into the space within a wide angle range. At the same time, the present invention facilitates the adjustment and positioning of the fan direction, and better meets the application requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a wide-angle fan of the present invention;

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

[0018] Figure 3 This is an exploded view of the internal structure of the support;

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

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

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

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

[0023] Figure 8 is a structural diagram of the first hinged portion;

[0024] Fig. 9 is an exploded view of the second hinged portion and the limiting shaft assembly;

[0025] Fig.10 It is the structural diagram of the limit sleeve;

[0026] Fig.11 Cross-section view of the limited hinge mechanism Figure 1 ;

[0027] Fig.12 Cross-section view of the limited hinge mechanism Figure 2 . DETAILED DESCRIPTION

[0028] The present invention is described in more detail below with reference to the accompanying drawings and embodiments.

[0029] The 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, and a rotating drive component 5 is provided at the connection between the rotating arm 2 and the support 1, and the rotating drive component 5 is used to drive the rotating arm 2 to reciprocate within a preset angle, and the two fan bodies 3 are symmetrically arranged on both sides of the rotating arm 2, and a first hinge part 30 is provided at the edge of the fan body 3, and a second hinge part 20 corresponding to the first hinge part 30 is provided at the second end of the rotating arm 2, and the first hinge part 30 and the second hinge part 20 are hingedly connected via a limit shaft component 4, and the limit shaft component 4 is used to limit the fan body 3 to an angular position after flipping.

[0030] In the above 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 limit shaft assembly 4 is used to limit the fan body 3 to the angular position after flipping. At the same time, because the two fan bodies 3 are symmetrically arranged on both sides of the rotating arm 2, the user can adjust the two fan bodies 3 to left-right symmetrical or asymmetrical positions respectively. When the rotating drive assembly 5 drives the rotating arm 2 to reciprocate within a preset angle, the two fan bodies 3 can supply air into the space in a wide angle range. At the same time, the present invention facilitates the adjustment and positioning of the fan direction, and better meets the application requirements.

[0031] As an application example, the rotating drive component 5 can drive the rotating arm 2 to rotate at an angle of 90°. Based on this angle setting, after the rotating arm 2 rotates forward and reverse for a cycle, each fan body 3 can supply air within an angle range of 180°. Based on the joint action of the two fan bodies 3, the function of full-angle air supply can be achieved.

[0032] Regarding the installation method of the rotating arm 2, in this embodiment, combined with Figures 3 to 6 As shown, a through hole 10 is provided at the top of the support 1, and an annular step groove 11 is provided at the edge of the through hole 10 located at one end of the inner side of the support 1, and a bearing 12 is provided in the annular step groove 11. A convex ring 21 is formed on the end surface of the first end of the rotating arm 2, and the bearing 12 is sleeved on the outer side of the convex ring 21. A support frame 13 is fixed on the inner side of the support 1, and a driving motor 22 is fixed in the rotating arm 2. A driving end of the driving motor 22 is provided with a rotating shaft 23, and the rotating shaft 23 is transmission-connected to the support frame 13.

[0033] In the above structure, by providing the bearing 12, the convex ring 21 can rotate relative to the annular step groove 11. When the driving motor 22 is running, the rotating shaft 23 applies a torque to the support frame 13, thereby driving the rotating arm 2 to rotate.

[0034] As a preferred embodiment, an abutment ring 24 is fixed to the end face of the convex ring 21, the outer diameter of the abutment ring 24 is larger than the inner diameter of the bearing 12, and the inner ring of the bearing 12 is sandwiched between the abutment ring 24 and the bottom of the annular step groove 11. Based on the matching relationship between the abutment ring 24, the annular step groove 11 and the bearing 12, the rotating arm 2 can be rotatably connected to the support 1, and the auxiliary rotation effect of the bearing 12 can be exerted, thereby reducing the driving resistance of the driving motor 22.

[0035] This embodiment has a limiting effect on the maximum rotation angle of the rotating arm 2. Specifically, the bottom of the annular step groove 11 is provided with an arc-shaped limit groove 14 of a preset length, and the outer wall of the convex ring 21 forms a limit stopper 25, which is arranged in the arc-shaped limit groove 14 and the two are slidably matched. Based on the sliding match between the limit stopper 25 and the arc-shaped limit groove 14, the rotation stroke of the rotating arm 2 can be limited, avoiding the adverse effect on the wire passing through it due to the excessive rotation angle of the rotating arm 2.

[0036] In order to make the abutting ring 24 cooperate well with the supporting frame 13 , in the present embodiment, the supporting frame 13 includes a circular receiving opening 130 , and the abutting ring 24 is disposed in the circular receiving opening 130 with a gap therebetween.

[0037] As a preferred embodiment, the support frame 13 includes a radial beam 131, a sleeve 132 is provided in the middle of the radial beam 131, and the rotating shaft 23 is inserted into the sleeve 132 and the two are engaged with each other. The rotating shaft 23 has an outer tangent surface on both sides, and the inner hole of the sleeve 132 has an inner tangent surface. Based on the abutment and cooperation between the outer tangent surface and the inner tangent surface, the rotating shaft 23 is engaged in the sleeve 132.

[0038] Regarding the preferred fixing method of the support frame 13, in this embodiment, a plurality of fixing parts 133 are provided on the edge of the support frame 13, and a plurality of fixing columns 134 are formed on the inner side of the support 1. The fixing parts 133 correspond to the fixing columns 134 one by one and the two are fixedly connected by screws.

[0039] See also Figure 1 and Figure 3 In this embodiment, a reversible handle 6 is provided at the second end of the rotating arm 2, and a reversible hook 7 is provided at one end of the support 1 facing away from the rotating arm 2. The handle 6 can facilitate users to lift the fan, and the hook 7 can facilitate users to hang the fan upside down in an appropriate position.

[0040] See also Figure 3 In this embodiment, the support 1 is provided with a mainboard 15, two speakers 16 and a battery, and the speakers 16, the fan body 3, the drive motor 22 and the battery are electrically connected to the mainboard 15. A Bluetooth module can be provided in the mainboard 15 to facilitate users to play music by wirelessly communicating with a mobile phone.

[0041] This embodiment also has the function of a lighting lamp or an atmosphere lamp, and also has the function of diffusing aromatherapy. Specifically, a plurality of LED light strips 31 are provided at the edge of the fan body 3, a lamp cover 32 is provided on the outer side of the LED light strip 31, and an aromatherapy receiving groove 33 is provided at the center of the fan body 3, and a removable cover plate 34 covers the opening of the aromatherapy receiving groove 33.

[0042] Regarding the position-limiting hinge mechanism used in the present invention, Figures 8 to 12 As shown, it includes 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 includes a clamping end 40, a shaft 41 and an elastic limiting sleeve 42, the clamping end 40 is arranged in the first hinge part 30 and the two are clamped and connected, the end surface of the second hinge part 20 is provided with a receiving port 200, the inner wall of the receiving port 200 is uniformly distributed with a plurality of clamping grooves 201 along the circumferential direction, the limiting sleeve 42 is arranged in the receiving port 200, and the edge of the limiting sleeve 42 is formed with at least one protrusion 420 protruding outward, and the protrusion 420 is clamped in the In the slot 201, the end of the snap-fit ​​terminal 40 is aligned with the end of the limiting sleeve 42 and the two are snap-fitted and connected, and the shaft rod 41 passes through the snap-fit ​​terminal 40, the limiting sleeve 42 and the second hinged part 20 in sequence. When the first hinged part 30 is flipped relative to the second hinged part 20, the torque is transmitted to the limiting sleeve 42 through the snap-fit ​​terminal 40, and the limiting sleeve 42 is elastically deformed to make the protrusion 420 slide in sequence along the multiple slots 201. When the first hinged part 30 completes the flipping, based on the snap-fitting relationship between the protrusion 420 and the slot 201, the first hinged part 30 is limited to the angular position after flipping.

[0043] In the above structure, when the first hinged part 30 is flipped relative to the second hinged part 20, based on the snap-fit ​​connection relationship between the snap-fit ​​terminal 40 and the first hinged part 30, the snap-fit ​​terminal 40 transmits torque to the limit sleeve 42, and under the action of the torque, the limit sleeve 42 is driven to undergo elastic deformation, and as the first hinged part 30 flips, the protrusion 420 slides along the plurality of the slots 201 in sequence, and when the first hinged part 30 completes the flipping, the protrusion 420 is naturally snapped into the corresponding slot 201 under the action of elasticity, thereby limiting the first hinged part 30 to the angle position after flipping. The limit hinge mechanism of the above structure is not only compact in 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, this embodiment includes two first hinge parts 30 , and the second hinge part 20 is disposed between the two first hinge parts 30 .

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

[0046] As a preferred mode, a polygonal hole 300 is formed on the end surface of the first hinged part 30 facing away from the second hinged part 20, and the clamping terminal 40 is a polygonal terminal, and the clamping terminal 40 is arranged in the polygonal hole 300 and the two are clamped and connected. Among them, this embodiment preferably adopts the cooperation of the polygonal terminal and the polygonal hole, so that the clamping terminal 40 and the first hinged part 30 maintain a reliable clamping relationship, thereby avoiding slipping and the like during the flipping process.

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

[0048] Furthermore, a rod cap 410 is provided at one end of the shaft rod 41, and a nut 411 is threadedly engaged at the other end of the shaft rod 41. An end face recess 401 is formed at one end of the clamping end 40 facing away from the limiting sleeve 42. The rod cap 410 and the nut 411 are respectively arranged in the end face recesses 401 of the two clamping ends 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 and matching 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 engaging forces on both sides of the limiting sleeve 42 , in this embodiment, two symmetrically arranged protrusions 420 are formed on the edge of the limiting sleeve 42 .

[0051] As a preferred embodiment, the opening of the polygonal hole 300 is covered with an end cap 44, and the end cap 44 is snap-fitted with the polygonal hole 300. The end cap 44 has a covering effect on the polygonal hole 300, which is not only dust-proof and anti-fouling, but also more aesthetically pleasing.

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

[0053] As a preferred embodiment, the limiting sleeve 42 is in a circular ring shape, and two mutually parallel clamping parts 422 are provided on the inner side of the limiting sleeve 42 , and the slot 421 is formed between the two clamping parts 422 .

[0054] In the above structure, the annular limiting sleeve 42 has good elasticity and toughness, so that during the flipping of the first hinge part 30, the limiting sleeve 42 can be slightly deformed so that the protrusion 420 can overcome the resistance of the slot 201 and slide along the multiple slots 201 in sequence. In addition, when the first hinge part 30 is flipped, based on the elasticity of the limiting sleeve 42 itself, the protrusion 420 is reliably clamped in the slot 201, thereby achieving the purpose of positioning after flipping.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the technical scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wide-angle fan, characterized in that: It 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, and the rotating drive assembly is used to drive the rotating arm to reciprocate within a preset angle, and the two fan bodies are symmetrically arranged 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 one by one, the first hinge part and the second hinge part are hingedly connected by a limiting shaft assembly, and the limiting shaft assembly is used to limit the fan body to an angular position after flipping.

2. The wide-angle fan according to claim 1, characterized in that: A through hole is provided on the top of the support, and an annular step groove is provided on the edge of the through hole at one inner end of the support, a bearing is provided in the annular step groove, a convex ring is formed on the end surface of the first end of the rotating arm, and the bearing sleeve is arranged 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 driving end of the drive motor is provided with a rotating shaft, and the rotating shaft is transmission-connected to the support frame.

3. The wide-angle fan according to claim 2, characterized in that: An abutment ring is fixed to the end surface of the convex 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 step groove.

4. The wide-angle fan according to claim 2, characterized in that: The bottom of the annular step groove is provided with an arc-shaped limiting groove of a preset length, and the outer side wall of the convex ring forms a limiting stopper, which is arranged in the arc-shaped limiting groove and the two are slidably matched.

5. The wide-angle fan according to claim 3, characterized in that: The support frame includes a circular accommodating opening, and the abutting ring is arranged in the circular accommodating opening with a gap therebetween.

6. The wide-angle fan according to claim 5, characterized in that: The support frame includes a radial crossbeam, a shaft sleeve is provided in the middle of the radial crossbeam, the rotating shaft is inserted in the shaft sleeve and the two are engaged with each other.

7. The wide-angle fan according to claim 2, characterized in that: The edge of the support frame is provided with a plurality of fixing parts, and the inner side of the support is formed with a plurality of fixing columns, the fixing parts correspond to the fixing columns one by one and the two are fixedly connected by screws.

8. The wide-angle fan according to claim 1, characterized in that: The second end of the rotating arm is provided with a flippable handle, and the end of the support facing away from the rotating arm is provided with a flippable hook.

9. The wide-angle fan according to claim 2, characterized in that: A mainboard, two speakers and a battery are arranged in the support, and the speakers, the fan body, the driving motor and the battery are electrically connected to the mainboard respectively.

10. The wide-angle fan according to claim 1, characterized in that: A plurality of LED light strips are arranged at the edge of the fan body, a lamp cover is arranged on the outer side of the LED light strip, an aromatherapy containing groove is arranged at the center of the fan body, and a detachable cover plate covers the opening of the aromatherapy containing groove.

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