Hidden fan with hidden synchronizing mechanism

Abstract

The utility model discloses an invisible fan with a hidden synchronizing mechanism. The invisible fan comprises a hanging rod, the motor is arranged at the lower end of the lifting rod; the blade disc is arranged on the motor and is driven by the motor to rotate; the multiple synchronous parts are arranged at the bottom of the blade disc, and the synchronous parts are rotationally connected relative to the blade disc; the fan blades are arranged at the top of the blade disc, and the fan blades are fixedly connected with the synchronous part; one end of the torsional spring is connected with the synchronizing part, the other end of the torsional spring is connected with the leaf disc, and the torsional spring provides reset force for the synchronizing part; the pull rod is arranged between two adjacent synchronous pieces, one end of the pull rod is connected with one synchronous piece, and the other end of the pull rod is connected with the other synchronous piece; and the chassis is arranged on the motor shaft and located below the blade disc, and a lighting assembly is arranged on the chassis. The dust collector is simple in structure, not prone to dust accumulation and good in appearance.

Description

Technical Field

[0001] The utility model relates to a fan, in particular to a stealth fan with a hidden synchronous mechanism design. Background Art

[0002] The invisible fan can be used for both ventilation and lighting, and is particularly suitable for use in living rooms and dining rooms. When the invisible fan is blowing, the blades open to deliver air, and when the blowing function is turned off, the blades retract and hide behind the fan.

[0003] In the prior art, the blade synchronization mechanism of the invisible fan is generally implemented by a gear synchronization structure. This gear synchronization mechanism is arranged on the top of the blade disk and has at least the following defects:

[0004] ① The gear synchronization structure (generally a sun gear combined with multiple planetary gears) uses a lot of materials, is costly, and is heavy, which is not conducive to the thin and light design of the invisible fan;

[0005] ②. Since the gear synchronization mechanism is set on the top of the blade disk, the gear synchronization mechanism is exposed, which is not conducive to the integrity and aesthetics of the invisible fan. In addition, the exposed gear synchronization mechanism is prone to dust accumulation after long-term use. The dust layer accumulates in the gap of the gear structure and is not easy to clean. In severe cases, it may even affect the normal operation of the gear synchronization mechanism, increasing the failure rate of the invisible fan.

[0006] For this reason, it is necessary to improve and optimize the existing invisible fan. Utility Model Content

[0007] The utility model aims to solve at least one of the problems in the prior art. To this end, the utility model provides a concealed fan with a synchronous mechanism hidden design, which has a simple structure, is not prone to dust accumulation, and has a good appearance.

[0008] The technical solution adopted by the utility model to solve its technical problems is:

[0009] An invisible fan with a hidden synchronization mechanism design, comprising:

[0010] boom;

[0011] a motor, arranged at the lower end of the boom;

[0012] a blade disk, disposed on the motor and driven to rotate by the motor;

[0013] There are multiple synchronizers, which are arranged at the bottom of the blade disk and are rotatably connected relative to the blade disk;

[0014] A fan blade is arranged on the top of the blade disk, and the fan blade is connected and fixed to the synchronizer;

[0015] a torsion spring, one end of which is connected to the synchronizer, and the other end of which is connected to the blisk, wherein the torsion spring provides a restoring force for the synchronizer;

[0016] A pull rod is provided between two adjacent synchronizers, one end of the pull rod is connected to one of the synchronizers, and the other end of the pull rod is connected to the other synchronizer;

[0017] The chassis is arranged on the motor shaft and is located below the blade disk. The chassis is provided with a lighting assembly.

[0018] Optionally, a rotating shaft is provided on the synchronizer, and a hinge hole is provided on the blade disk. The rotating shaft passes through the hinge hole upward and is fixedly connected to the fan blade. The synchronizer realizes a rotational connection with the blade disk through the rotating shaft and the hinge hole.

[0019] Optionally, the cross-section of the upper end of the rotating shaft is polygonal, and the fan blade is provided with a polygonal hole adapted to the polygonal cross-section. The fan blade is placed on the rotating shaft of the polygonal cross-section through the polygonal hole to realize the linkage between the fan blade and the synchronizer.

[0020] Optionally, a screw hole is provided on the rotating shaft, and after the screw passes through the screw hole, the nut is pressed onto the fan blade.

[0021] Optionally, the end of the fan blade that contacts the blade disk is provided with a plurality of protrusions, and the fan blade contacts the blade disk through the protrusions.

[0022] Optionally, a plurality of bending portions are provided on the pull rod, so that the pull rod forms a bent iron wire.

[0023] Optionally, two hanging columns are provided on the synchronizer, and a hanging hole is provided at the end of the pull rod, and the pull rod is connected to the hanging columns through the hanging hole.

[0024] Optionally, an arc-shaped groove is provided at the bottom of the blade disk, and the hanging column is located in the arc-shaped groove.

[0025] Optionally, a limit plate is provided on the fan blade, and two limit plates are provided on the blade disk. When the fan blade rotates, the limit plate moves between the two limit plates.

[0026] Optionally, there are three or more fan blades.

[0027] The present invention has at least one of the following beneficial effects: the present invention embodiment sets a synchronization part, and there are multiple synchronization parts and they are set at the bottom of the blade disk, and the synchronization parts are connected to the blade disk for rotation; the fan blades are set at the top of the blade disk, and the fan blades are fixedly connected to the synchronization parts; the pull rod is set between two adjacent synchronization parts, one end of the pull rod is connected to one of the synchronization parts, and the other end is connected to the other synchronization part; the chassis is set on the motor shaft and is located below the blade disk, which easily realizes the hidden design of the synchronization mechanism composed of the synchronization parts and the pull rod between the blade disk and the chassis, so that the synchronization mechanism on the invisible fan is invisible, and the exposed design structure of the gear synchronization mechanism in the prior art is abandoned. As a result, the synchronization mechanism is not easy to accumulate dust and dirt after the invisible fan has been working for a long time, which is convenient for cleaning the back of the invisible fan and ensures the reliable operation of the synchronization mechanism; moreover, the synchronization mechanism composed of the synchronization parts and the pull rod has a smaller volume, less material and lower cost than the existing gear synchronization structure, which is conducive to the low-cost design and lightweight design of the invisible fan, and has a simple and compact structure and is easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the three-blade invisible fan in the embodiment of the present invention;

[0029] Figure 2 yes Figure 1 Another angle diagram of the structure shown;

[0030] Figure 3 yes Figure 1 A schematic cross-sectional view of the structure shown;

[0031] Figure 4 yes Figure 3 A partial enlarged view of middle A;

[0032] Figure 5 This is a schematic diagram of the invisible fan structure after the blade disk and blades are hidden in the embodiment of the utility model;

[0033] Figure 6 yes Figure 5 Schematic diagram of the structure of B;

[0034] Figure 7 This is a schematic diagram of the partial structure of the fan blade in the embodiment of the present utility model;

[0035] Figure 8 and Figure 9 Schematic diagrams of two angles of the blade disk in the embodiment of the utility model;

[0036] Figure 10 and Figure 11 Schematic diagrams of the synchronizer at two angles in the embodiment of the present utility model;

[0037] Figure 12 This is a schematic diagram of the three-dimensional structure of the pull rod in the embodiment of the utility model;

[0038] Figure 13 It is a schematic diagram of the three-dimensional structure of a stealth fan with four blades in an embodiment of the present invention.

[0039] Description of Figure Numbers:

[0040] 1- suspension rod, 2- motor, 3- blade disk, 31- hinge hole, 32- arc groove, 33- limit plate, 4- synchronization part, 41- shaft, 42- screw hole, 43- hanging column, 5- fan blade, 51- polygonal hole, 52- bump, 53- limit plate, 6- torsion spring, 7- pull rod, 71- bending part, 72- hanging hole, 8- chassis, 9- lighting assembly. DETAILED DESCRIPTION

[0041] To make the purpose, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, unless there is any conflict, the embodiments and features in the embodiments described below can be combined with each other in any manner.

[0042] Many different implementations or examples are provided below to implement the structure of the present invention.

[0043] See also Figures 1-13, an invisible fan with a hidden synchronization mechanism according to an embodiment of the present invention includes a suspension rod 1; a motor 2, which is arranged at the lower end of the suspension rod 1; a blade disk 3, which is arranged on the motor 2 and driven to rotate by the motor 2; a plurality of synchronizers 4, which are arranged at the bottom of the blade disk 3, and the synchronizers 4 are rotatably connected relative to the blade disk 3; a fan blade 5, which is arranged at the top of the blade disk 3, and the fan blade 5 is connected and fixed to the synchronizer 4; a torsion spring 6, one end of the torsion spring 6 is connected to the synchronizer 4, and the other end is connected to the blade disk 3, and the torsion spring 6 provides a reset force for the synchronizer 4; a pull rod 7 is arranged between two adjacent synchronizers 4, one end of the pull rod 7 is connected to one of the synchronizers 4, and the other end is connected to the other synchronizer 4; a chassis 8 is arranged on the motor shaft and is located below the blade disk 3, and a lighting assembly 9 is provided on the chassis 8. Specifically, when the invisible fan realizes the blowing function, the motor 2 rotates, driving the blade disc 3 to rotate, and the fan blades 5 are unfolded under the action of centrifugal force to realize the air supply function; in the process of unfolding the fan blades 5, the synchronous member 4 is driven to rotate in conjunction, so that the synchronous member 4 rotates relative to the blade disc 3, and the rotation of the synchronous member 4 will drive the pull rod 7 to move, and the moving pull rod 7 will drive the other synchronous members 4 connected to the pull rod to rotate synchronously. Therefore, the existence of the pull rod 7 enables the synchronous members 4 located at both ends of the pull rod 7 to achieve synchronous movement; when the synchronous member 4 is linked with the unfolding of the fan blades 5, it will pull the torsion spring 6, so that the torsion spring 6 accumulates force. When the motor 2 is powered off, the blade disc 3 gradually stops from high-speed rotation, and the torsion spring 6 provides a reset force for the synchronous member 4, so that the synchronous member 4 rotates in the opposite direction, thereby driving the fan blades 5 to retract. Similarly, due to the existence of the pull rod 7, multiple fan blades 5 can be retracted synchronously.

[0044] See Figure 4 、 Figure 7-Figure 9 and Figure 11 As shown, in some embodiments of the present invention, the synchronizer 4 is provided with a rotating shaft 41, and the blisk 3 is provided with a hinge hole 31. The rotating shaft 41 passes upward through the hinge hole 31 and is fixedly connected to the blade 5. The synchronizer 4 is rotationally connected to the blisk 3 via the rotating shaft 41 and the hinge hole 31. As a result, the rotational connection structure of the synchronizer 4 relative to the blisk 3 becomes simple and reliable.

[0045] In order to achieve the synchronous linkage between the fan blade 5 and the synchronizer 4, see Figure 7 and Figure 11 As shown, in some embodiments of the present invention, the cross-section of the upper end of the rotating shaft 41 is polygonal, and the fan blade 5 is provided with a polygonal hole 51 adapted to the polygonal cross-section. The fan blade 5 is sleeved on the rotating shaft 41 with the polygonal cross-section through the polygonal hole 51 to realize the linkage between the fan blade 5 and the synchronizer 4. This structure is simple and reliable, not easy to slip, and can always ensure the real-time synchronous movement between the fan blade 5 and the synchronizer 4.

[0046] In order to achieve the fixation of the synchronizer 4 and the fan blade 5 in the axial direction, see Figure 1 、 Figure 10 as well as Figure 11 As shown, in some embodiments of the present invention, a screw hole 42 is provided on the rotating shaft 41 , and after a screw (not shown in the drawing) passes through the screw hole 42 , the nut is pressed onto the fan blade 3 .

[0047] See Figure 4 and Figure 7 As shown, in some embodiments of the present invention, a plurality of protrusions 52 are provided at the ends of the fan blades 5 that contact the blade disk 3. The fan blades 5 contact the blade disk 3 through the protrusions 52. The provision of the protrusions 52 can reduce the contact area between the fan blades 5 and the blade disk 3, thereby helping to reduce the friction between the fan blades 5 and the blade disk 3, making the expansion or contraction of the fan blades 5 smoother.

[0048] See Figure 5 、 Figure 12 As shown, in some embodiments of the present invention, a plurality of bending portions 71 are provided on the pull rod 7, so that the pull rod 7 forms a bent iron wire; the pull rod 7 can be made of iron metal, and the setting of the bending portion 71, on the one hand, increases the structural strength of the pull rod, and on the other hand, makes the pull rod 7 have a certain elasticity, so that the pull rod 7 can be better tightened and fixed on two adjacent synchronizers 4 without falling off easily, thereby ensuring the stability and reliability of the pull rod when working.

[0049] See Figure 10 As shown, in some embodiments of the present invention, two hanging columns 43 are provided on the synchronizer 4, and a hanging hole 72 is provided at the end of the pull rod 7. The pull rod 7 is connected to the hanging column 43 through the hanging hole 72. The installation of the pull rod becomes simple and reliable, and the hanging hole 72 only needs to be directly placed on the hanging column 43 of the synchronizer 4.

[0050] See Figure 4 、 Figure 8 as well as Figure 10 As shown, in some embodiments of the present invention, an arcuate groove 32 is provided at the bottom of the blisk 3, and the hanging post 43 is located in the arcuate groove 32. As a result, when the synchronizer 4 rotates relative to the blisk 3, the hanging post 43 can move in the arcuate groove 32. The arcuate groove 32 acts as a track groove, guiding the precise movement of the synchronizer 4 and improving the synchronization of the synchronization mechanism.

[0051] See Figure 7 and Figure 9As shown, in some embodiments of the present invention, the fan blade 5 is provided with a limit piece 53, and the blade disk 3 is provided with two limit plates 33. When the fan blade 5 rotates, the limit piece 53 moves between the two limit plates 33. This structure limits the expansion angle of the fan blade 5 relative to the blade disk 3, preventing the fan blade 5 from over-expanding.

[0052] In some embodiments of the present invention, there are three or more fan blades. Figure 1 As shown, it is a 3-blade structure, see Figure 13 As shown, it is a 4-blade structure. Of course, the fan blades can also be set to 5 or even more as needed.

[0053] From the above structural analysis, it can be seen that the embodiment of the present invention is provided with a synchronizer 4, which is multiple and is arranged at the bottom of the blade disk 3, and the synchronizer 4 is rotatably connected relative to the blade disk 3; the fan blade 5 is arranged at the top of the blade disk 3, and the fan blade 5 is fixedly connected to the synchronizer 4; the pull rod 7 is arranged between two adjacent synchronizers 4, one end of the pull rod 7 is connected to one of the synchronizers 4, and the other end is connected to the other synchronizer 4; the chassis 8 is arranged on the motor shaft and is located below the blade disk 3, which easily realizes the hidden design of the synchronization mechanism composed of the synchronizer 4 and the pull rod 7 between the blade disk 3 and the chassis 8, so that the synchronization mechanism on the invisible fan is invisible, and the exposed design structure of the gear synchronization mechanism in the prior art is abandoned. As a result, the synchronization mechanism is not easy to accumulate dust and dirt after the invisible fan has been working for a long time, which is convenient for cleaning the back of the invisible fan and ensures the reliable operation of the synchronization mechanism; moreover, the synchronization mechanism composed of the synchronizer and the pull rod has a smaller volume, less material and lower cost than the existing gear synchronization structure, which is conducive to the low-cost design and lightweight design of the invisible fan, and has a simple and compact structure and is easy to implement.

[0054] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A concealed fan with a hidden synchronization mechanism, characterized in that: include: boom; a motor, arranged at the lower end of the boom; a blade disk, disposed on the motor and driven to rotate by the motor; There are multiple synchronizers, which are arranged at the bottom of the blade disk and are rotatably connected relative to the blade disk; A fan blade is arranged on the top of the blade disk, and the fan blade is connected and fixed to the synchronizer; a torsion spring, one end of which is connected to the synchronizer, and the other end of which is connected to the blisk, wherein the torsion spring provides a restoring force for the synchronizer; A pull rod is provided between two adjacent synchronizers, one end of the pull rod is connected to one of the synchronizers, and the other end of the pull rod is connected to the other synchronizer; The chassis is arranged on the motor shaft and is located below the blade disk. The chassis is provided with a lighting assembly.

2. The invisible fan with a hidden synchronization mechanism according to claim 1, characterized in that: The synchronizer is provided with a rotating shaft, and the blade disk is provided with a hinge hole. The rotating shaft passes through the hinge hole upward and is connected and fixed to the fan blade. The synchronizer is rotationally connected to the blade disk through the rotating shaft and the hinge hole.

3. The invisible fan with a hidden synchronization mechanism according to claim 2, characterized in that: The cross section of the upper end of the rotating shaft is polygonal, and the fan blade is provided with a polygonal hole adapted to the polygonal cross section. The fan blade is sleeved on the rotating shaft of the polygonal cross section through the polygonal hole to realize the linkage between the fan blade and the synchronizer.

4. The invisible fan with a hidden synchronization mechanism according to claim 3, characterized in that: The rotating shaft is provided with a screw hole, and after the screw passes through the screw hole, the nut is pressed onto the fan blade.

5. The invisible fan with a hidden synchronization mechanism according to claim 1, characterized in that: The ends of the fan blades that contact the blade disk are provided with a plurality of convex points, and the fan blades contact the blade disk through the convex points.

6. The invisible fan with a hidden synchronization mechanism according to claim 1, characterized in that: The pull rod is provided with a plurality of bending parts so that the pull rod forms a bent iron wire.

7. The invisible fan with a hidden synchronization mechanism according to claim 1 or 6, characterized in that: Two hanging columns are provided on the synchronizer, and a hanging hole is provided at the end of the pull rod, and the pull rod is connected to the hanging columns through the hanging hole.

8. The invisible fan with a hidden synchronization mechanism according to claim 7, characterized in that: An arc-shaped groove is provided at the bottom of the blade disk, and the hanging column is located in the arc-shaped groove.

9. The invisible fan with a hidden synchronization mechanism according to claim 1, characterized in that: The fan blade is provided with a limit piece, and the blade disk is provided with two limit plates. When the fan blade rotates, the limit piece moves between the two limit plates.

10. The invisible fan with a hidden synchronization mechanism according to claim 1, characterized in that: The number of the fan blades is three or more.

Images