TWI717195B - Blade frame and blade combination of ceiling fan - Google Patents

Abstract

A combination of a leaf frame and a blade of a ceiling fan, comprising a leaf frame, an adapter seat and a fan blade, wherein the adapter seat is pivoted on the leaf frame, the fan blade is pivoted on the adapter seat, and the adapter seat pivots relative to the blade frame The rotating seat will be synchronously driven at the time, so that the fan blades are switched from the initial position to the rotating position to change the inclination of the fan blades, and the fan blades are turned outwards, and when the operation is stopped, the reverse operation makes the fan blades outward The unscrewing type changes to the collapsed type.

Description

Blade frame and blade combination of ceiling fan

The present invention relates to a ceiling fan, and particularly refers to the combined structure between the blade frame and the blade, and the blade has a variable rotation angle range, which means that the inclination angle of the blade and the inclination angle of the blade relative to the blade frame are changed.

A ceiling fan is a fan hung on the ceiling of a building. When the fan blades are driven to rotate, it will accelerate the circulation of indoor air. The fan blades that the ceiling fan rotates are large and heavy, so the ceiling fan is matched with a motor with a larger torque than a vertical fan, so the speed is lower than that of a vertical fan, and it can have a larger blowing area, which is quite popular with consumers. It is commonly installed in the living room of the family, and used in government agencies, schools, and large restaurants with air conditioning systems.

At present, there is a type of ceiling fan in which the fan blades can be folded close to the body with a spherical appearance when the fan blades are not in use. When in use, the fan blades can be deployed individually or in conjunction with each other. For example, Taiwan New Patent No. , Taiwan Invention Patent No. I550192 "Ceiling Fan with Synchronously Expanding and Folding Blades" and other related prior technologies.

The folding and unfolding of the fan blades of the aforementioned ceiling fan is affected by the number and size of the fan blades, and also affects the design angle of the fan blades. As a result, the efficiency of the air circulation of the ceiling fan in operation is limited.

In order to improve the aforementioned ceiling fan with expansion and folding, the inventor of this case has finally obtained a new type of ceiling fan after many years of practical experience in the industry, and after many experiments and product trials.

The main purpose of the present invention is to provide a combination of the blade frame and the blade of the ceiling fan, so as to improve the defects of the conventional ceiling fan.

In order to achieve the foregoing objectives and effects, a combination of a leaf frame and a blade of a ceiling fan is provided, which includes: a leaf frame, which is assembled with one end of a fixed shaft, and the other end of the fixed shaft is provided with a plurality of fixed teeth arranged in a ring shape ; An adapter seat, which is pivoted on the leaf frame, and the adapter seat is provided with a pocket, and the circumferential side of the adapter seat is provided with a through hole communicating with the pocket in the axial and radial directions and a A rotating hole, and the fixed shaft passes through the through hole with one end of the plurality of fixed teeth and is located in the accommodating groove; and a fan blade, the fan blade includes a blade, a rotating seat and a tooth block, the rotating seat The two ends are respectively assembled with the blade and the tooth block, and the part of the rotating seat with the blade is located outside the rotating hole of the adapter seat, and the part of the rotating seat with the tooth block is pivoted through the rotating hole , And the tooth block is located in the pocket and has a plurality of rotating teeth that engage the plurality of fixed teeth, so that when the adaptor pivots relative to the blade carrier, the plurality of rotating teeth of the tooth block are fixed along the fixed shaft The tooth meshes and rotates, so that the tooth block synchronously drives the rotating seat and the blade to switch between an initial position and a rotating position, thereby changing the inclination angle of the blade.

As shown in Figures 1 to 4 of the drawings, the figure discloses a ceiling fan 1 with its blades folded and unfolded, and the combination of the blade frame and the blade of the ceiling fan of the present invention is one of the drawings, and the figure in the figure Ceiling fans take four groups as an example.

Regarding the leaf frame and blade combination of the ceiling fan of the present invention, please refer to Figures 3-9. The leaf frame and blade combination of the ceiling fan of the present invention includes: a leaf frame 2, which is assembled with one end of a fixed shaft 21 , And the other end of the fixed shaft 21 is provided with a plurality of fixed teeth 22 arranged in a ring shape; an adapter 3 is pivoted on the leaf frame 2, and the adapter 3 is provided with a receiving groove 31, the The peripheral side of the adapter 3 is provided with a through hole 32 and a rotating hole 33 which communicate with the cavity 31 in the axial direction and the radial direction, and the fixed shaft 21 penetrates the through hole 32 with one end of the plurality of fixed teeth 22 And located in the accommodating groove 31; and a fan blade 4, the fan blade 4 includes a blade 41, a rotating seat 42 and a tooth block 43, the two ends of the rotating seat 42 are respectively assembled with the blade 41 and the tooth block 43. Moreover, the part of the rotating seat 42 where the blade 41 is assembled is located outside the rotating hole 33 of the adapter seat 3, and the part of the rotating seat 42 where the tooth block 43 is assembled pivots through the rotating hole 33, and The tooth block 43 is located in the pocket 31 and has a plurality of rotating teeth 431 that engage the plurality of fixed teeth 22, so that when the adapter 3 pivots relative to the blade carrier 2, the plurality of rotating teeth 431 of the tooth block 43 follow the fixed The plurality of fixed teeth 22 of the shaft 21 engage and rotate, so that the tooth block 43 synchronously drives the rotating seat 42 and the blade 41 to switch between an initial position and a rotation position, and further changes the inclination range of the blade 41.

Through the above-mentioned mechanism combination and mutual cooperation operation, the centrifugal force generated by the horizontal rotation of the rotating blade frame 2 of the ceiling fan 1 causes the fan blades 4 to rotate outwards from the original folded shape, so that the blades 41 synchronously drive the rotating seat 42. The rotating seat 42 drives the adapter seat 3 to pivot relative to the leaf frame 2. During the pivoting process, the plurality of rotating teeth 431 of the tooth block 43 mesh and rotate along the plurality of fixed teeth 22 of the fixed shaft 21, so that the adapter seat 3 can be driven The blade 41 rotates positively on the axis relative to the rotating hole 33, so that the inclination angle of the blade 41 is changed, so that the ceiling fan 1 has a better effect of circulating air during operation. The ceiling fan 1 is stopped, and the aforementioned actions are reversed so that the fan blade 4 changes from the outwardly unscrewed state to the folded state.

The detailed features of each component of the leaf frame and blade combination of the ceiling fan of the present invention and the combination of each other are further described.

The rotating hole 33 is provided with a ring groove 331, the bottom surface of the ring groove 331 is provided with a limiting protrusion 332, and the rotating seat 42 is provided with an arc-shaped rib 421 slidably disposed in the ring groove 331, and the arc A rotating notch 422 is formed between the two ends of the rib 421 and the limiting protrusion 332 is accommodated, and the length of the rotating notch 422 is greater than the length of the limiting protrusion 332. In addition to providing the sliding operation of the arc-shaped rib 421 by the ring groove 331, the present invention further accommodates the limit protrusion 332 through the rotation notch 422 of the rotating seat 42 so that the rotating range of the rotating seat 42 is controlled by the arc The two ends of the rib 421 are respectively pressed by the two end positions of the limiting protrusion 332, so that the rotation seat 42 from the initial position (the horizontal state of the rotation seat 42, as shown in the eighth figure) to the rotation position is the inclination angle X2, The angle of the inclination X2 is 7˚ to 20˚ (as shown in the ninth figure), so that the blade 41 can be driven by the rotating seat 42 to prevent the blade 41 from excessively rising.

The adapter seat 3 includes an upper cover 34 and a lower seat 35 that are mutually composed, and the upper cover 34 and the lower seat 35 are recessed to form the receiving groove 31, and the through hole 32 is provided in the lower seat 35. The hole 33 is arranged at a position between the upper cover 34 and the lower seat 35, and the limiting protrusion 332 is located in the lower seat 35 part. The upper seat 34 and the lower seat 35 form a cavity lower 31 that can lightly seal the meshing mechanism of the fixed tooth 22 and the rotating tooth 431, and reduce the intrusion of foreign matter from affecting the meshing rotation process.

The rotating seat 42 includes a shaft portion 423 connected to each other and a set of leaf portions 424. The shaft portion 423 is pivoted to the rotating hole 33, and the arc-shaped rib 421 is provided along the outer peripheral surface of the shaft portion 423. The tooth block 43 is fixed to the opposite end of the through-shaft portion 423 connected to the set of leaf portions 424. The set of leaf portions 424 is provided with a set of lobes 425, and one end of the blade 41 is accommodated and locked in the set of lobes 425.

In addition, the through-shaft portion 423 and the group of leaf portions 424 are in a non-uniform horizontal shape, and define a virtual line L1 that the through-shaft portion 423 extends horizontally toward the group of leaf portions 424, and the virtual line reaches the group of leaf portions 424. A rising angle X1 (as shown in the fifth figure) is formed between the blades 424, and the rising angle is 5 ˚ to 10˚. By setting the rising angle, the mutual interference of the folding of the fan blades 4 can be avoided.

A supporting rib 36 extending toward the fixed shaft 21 is provided in the receiving groove 31, and a supporting arc surface 361 sliding against the peripheral side of the fixed shaft 21 is provided on the peripheral side of the supporting rib 36. The aforementioned supporting rib 36 extends from the inside of the upper cover 34. With the support arc surface 361 of the support rib 36 sliding against the peripheral side of the fixed shaft 21, the axial deformation of the fixed shaft 21 by the meshing and rotating force of the tooth block 43 is reduced, and the tooth block 43 and the fixed shaft 21 can be stabilized. Intermeshing and meshing rotation process. In addition, the fixed teeth 22 of the fixed shaft 21 and the rotating teeth 431 of the tooth block 43 adopt similar bevel gear shapes.

The adapter 3 is fixedly provided with a turntable 5, and the turntable 5 is pivoted on the leaf frame 2, and the fixed shaft 21 penetrates the turntable 5. The turntable 5 is connected to one end of the connecting rod 51, and the other end of the connecting rod 51 is connected to the turntable 5 on the other leaf frame 2 to form an operation of synchronously driving the fan blade 4 to expand and collapse.

1: Ceiling fan 2: Leaf frame 21: fixed shaft 22: fixed tooth 3: Adapter 31: Tolerance 32: Through hole 33: Rotating hole 331: ring groove 332: Limit bump 34: upper cover 35: get down 36: Support rib 361: Support Curved Surface 4: fan blade 41: Blade 42: Rotating seat 421: arc rib 422: rotation gap 423: Wear Shaft 424: Group Leaf 425: group leaf slot 43: tooth block 431: Rotating Gear 5: turntable 51: connecting rod

The first figure is a three-dimensional schematic diagram of the fan blades of the ceiling fan in a folded state. The second figure is a three-dimensional schematic diagram of the fan blades of the ceiling fan in an unfolded state. The third figure is a three-dimensional schematic diagram of the adapter base and the fan blade of the ceiling fan of the present invention. The fourth figure is an exploded perspective view of the combination of blade frame and blade of the ceiling fan of the present invention. Figure 5 is a schematic cross-sectional view of line ⅤV in Figure 3. Figure 6 is a schematic cross-sectional view of line VI VI in Figure 3. The seventh figure is a schematic diagram of the action of the sixth figure. Figure 8 is a schematic cross-sectional view of line ⅧⅧ in Figure 3. The ninth figure is a schematic diagram of the action of the eighth figure.

2: Leaf frame

21: fixed shaft

22: fixed tooth

3: Adapter

31: Tolerance

32: Through hole

33: Rotating hole

331: ring groove

332: Limit bump

34: upper cover

35: get down

36: Support rib

361: Support Curved Surface

41: Blade

42: Rotating seat

421: arc rib

422: rotation gap

423: Wear Shaft

424: Group Leaf

43: tooth block

431: Rotating Gear

5: turntable

Claims (9)

A combination of a leaf frame and a blade of a ceiling fan includes: a leaf frame, one end of a fixed shaft is assembled, and the other end of the fixed shaft is provided with a plurality of fixed teeth arranged in a ring shape; an adapter seat with a pivot Is provided on the leaf frame, and the adapter seat is provided with a pocket, the peripheral side of the adapter seat is respectively provided with a through hole and a rotating hole communicating with the pocket in the axial and radial directions, and the fixed shaft is One end of the plurality of fixed teeth penetrates the through hole and is located in the receiving groove; and a fan blade, the fan blade includes a blade, a rotating seat and a tooth block, both ends of the rotating seat are respectively assembled with the blade and The tooth block, the part of the rotating seat assembly with the blades is located outside the rotating hole of the adapter seat, and the part of the rotating seat assembly with the tooth block pivots through the rotating hole, and the tooth block is located in the container The groove also has a plurality of rotating teeth that engage the plurality of fixed teeth, so that when the adaptor pivots relative to the blade carrier, the plurality of rotating teeth of the tooth block mesh and rotate along the plurality of fixed teeth of the fixed shaft, so that the tooth block Synchronously driving the rotating seat and the blade to switch between an initial position and a rotating position, and changing the inclination angle of the blade. The blade frame and blade combination of the ceiling fan according to claim 1, wherein the rotary hole is provided with a ring groove, and the groove bottom surface of the ring groove is provided with a limiting protrusion, and the rotary seat is provided with a sliding seat in the ring groove An arc-shaped rib, and a rotating notch is formed between the two ends of the arc-shaped rib and the limiting protrusion is accommodated, and the length of the rotating notch is greater than the length of the limiting protrusion, so that the rotation seat The rotation range is that the two ends of the arc-shaped rib are respectively pressed by the two end positions of the limiting protrusion, so that the inclination angle of the rotation seat from the initial position to the rotation position is the angle. The blade frame and blade combination of the ceiling fan according to claim 2, wherein the angle of the inclination is 7° to 20°. The combination of the blade frame and the blade of the ceiling fan according to claim 2, wherein the adapter seat includes an upper cover and a lower seat, and the upper cover and the lower seat are recessed to form the cavity, and the through hole is It is arranged on the lower seat, the rotating hole is arranged at a position between the upper cover and the lower seat, and the limiting protrusion is located on the lower seat. The blade frame and blade combination of the ceiling fan according to claim 2, wherein the rotating seat includes a shaft portion and a set of blade portions connected to each other, the shaft portion is pivoted on the rotating hole, and the arc-shaped rib It is arranged along the outer peripheral surface of the through shaft part, and the tooth block is fixed to the opposite end of the through shaft part connected to the group of leaf parts, the group of leaf parts is provided with a set of blade grooves, and the blade is accommodated and locked to the group of leaves at one end groove. The blade frame and blade combination of the ceiling fan according to claim 5, wherein the through-shaft part and the set of blade parts are in a non-uniform horizontal form, and a virtual one of the virtual parts is defined to extend horizontally toward the set of blade parts. Line, and an upward angle is formed between the virtual line and the group of leaves. The blade frame and blade combination of the ceiling fan according to claim 6, wherein the upward angle is 5° to 10°. The blade frame and blade combination of the ceiling fan according to claim 1, wherein a support rib extending toward the fixed shaft is provided in the pocket, and one of the peripheral sides of the support rib slid against the fixed shaft Support curved surface. The leaf frame and blade combination of the ceiling fan according to claim 1, wherein the adapter seat is fixedly provided with a turntable, and the turntable is pivoted on the leaf frame, and the fixed shaft penetrates the turntable.

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