CN113202816A

CN113202816A - Blade frame and blade combination of ceiling fan

Info

Publication number: CN113202816A
Application number: CN202010078592.4A
Authority: CN
Inventors: 刘景文
Original assignee: Pan Air Electric Co Ltd
Current assignee: Pan Air Electric Co Ltd
Priority date: 2020-02-03
Filing date: 2020-02-03
Publication date: 2021-08-03
Anticipated expiration: 2040-02-03
Also published as: CN113202816B

Abstract

The blade frame and blade combination of ceiling fan includes blade frame, adapter seat and blades, in which the adapter seat is pivoted on the blade frame, the blades are pivoted on the adapter seat, and when the adapter seat is pivoted relative to the blade frame, the rotating seat can be synchronously driven so as to make the blades change their inclination angle from initial position to rotating position, and the blades are outwards unscrewed form, and when the ceiling fan is stopped, the blades can be reversely operated so as to make the blades change into folded form from outwards unscrewed form.

Description

Blade frame and blade combination of ceiling fan

Technical Field

The invention relates to a ceiling fan, in particular to a combined structure between a blade frame and blades, wherein the blades have a variable rotating angle range, namely, the inclination angle of the blades and the inclination angle of the blades relative to the blade frame are changed.

Background

A ceiling fan is a fan suspended from a ceiling in a building, and accelerates indoor air circulation when the fan blades are driven to rotate. The ceiling fan is matched with a motor with larger torsion than that of the vertical fan, so that the rotating speed of the ceiling fan is lower than that of the vertical fan, the ceiling fan can have a larger blowing area, is popular with consumers and is commonly installed in a living room of a family, and is matched with an air conditioning system for use in government offices, schools and large restaurants.

Currently, a ceiling fan is available in which the fan blades can be folded close to the main body in an unused state, such as a spherical shape, and the fan blades can be unfolded individually or in a linkage manner when in use, for example, related prior arts such as taiwan patent No. M533692, "small ceiling fan", taiwan patent No. I550192, "ceiling fan with synchronously foldable blades", and the like.

The folding and unfolding of the fan blades of the ceiling fan are influenced by the quantity, the size and the like of the fan blades, and the design angle of the fan blades is further influenced, so that the efficiency of circulating air in the operation of the ceiling fan is limited.

In order to improve the ceiling fan with the unfolding and folding functions, the inventor relies on years of practical experience of the industry, and obtains a novel ceiling fan after a plurality of experiments and product trials.

Disclosure of Invention

The main technical problem to be solved by the present invention is to overcome the above-mentioned defects of the prior art, and to provide a blade frame and blade combination of a ceiling fan to improve the defects of the prior ceiling fan.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a blade frame and blade combination for a ceiling fan, comprising: a blade 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 fixing teeth which are arranged in a ring shape; a switching seat which is pivoted on the blade frame and is internally provided with a containing groove, the peripheral side of the switching seat is respectively provided with a through hole and a rotating hole which are communicated with the containing groove in the axial direction and the radial direction, and the fixed shaft is positioned in the containing groove by penetrating through the through hole by one end of the plurality of fixed teeth; and a fan blade, the fan blade includes a blade, a rotating seat and a tooth block, the both ends of the rotating seat are connected with the blade and the tooth block separately, and the part of the rotating seat group equipped with the blade is positioned outside the rotating hole of the adapter seat, and the part of the rotating seat group equipped with the tooth block is pivoted in the rotating hole, and the tooth block is positioned in the containing groove and has several rotating teeth meshed with the several fixing teeth, so that the several rotating teeth of the tooth block are meshed with the several fixing teeth of the fixed shaft when the adapter seat is pivoted relative to the blade frame, and the tooth block synchronously drives the rotating seat and the blade to switch between an initial position and a rotating position, and further changes the inclination angle of the blade.

The ceiling fan has the beneficial effect that the defects of the existing ceiling fan are improved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a perspective view of a ceiling fan with fan blades folded.

FIG. 2 is a perspective view of a ceiling fan with fan blades in an unfolded state.

FIG. 3 is a perspective view of the adapter and blades of the ceiling fan of the present invention.

FIG. 4 is an exploded perspective view of the blade frame and blade combination of the ceiling fan of the present invention.

FIG. 5 is a schematic sectional view of the line V in FIG. 3.

Fig. 6 is a cross-sectional view of the VIVI line in fig. 3.

Fig. 7 is a schematic diagram of the operation of fig. 6.

FIG. 8 is a schematic sectional view taken along VIII in FIG. 3.

Fig. 9 is a schematic diagram of the operation of fig. 8.

The reference numbers in the figures illustrate:

1 ceiling fan

2 leaf rack

21 fixed shaft

22 fixed teeth

3 switching seat

31 containing groove

32 through hole

33 rotating hole

331 ring groove

332 limit bump

34 upper cover

35 lower seat

36 support rib

361 supporting arc surface

4 flabellum

41 blade

42 rotating seat

421 arc rib

422 rotation notch

423 shaft penetrating part

424 leaf set parts

425 sets of blade grooves

43 tooth block

431 rotating gear

5 rotating disc

51 connecting rod

Detailed Description

Referring to fig. 1 to 4, a ceiling fan 1 with foldable and unfoldable fan blades is disclosed, and the blade frame and blade combination of the ceiling fan of the present invention is one group of the drawings, and the ceiling fan in the drawings is exemplified by four groups.

Referring to fig. 3 to 9, the blade frame and blade assembly of the ceiling fan of the present invention includes: a blade 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; a adapter 3 pivotally disposed on the blade frame 2, wherein a receiving slot 31 is disposed in the adapter 3, a through hole 32 and a rotating hole 33 are axially and radially disposed on the periphery of the adapter 3 to communicate with the receiving slot 31, and the fixing shaft 21 is disposed in the receiving slot 31 with one end of the fixing teeth 22 penetrating through the through hole 32; 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 connected to the blade 41 and the tooth block 43, the portion of the rotating seat 42 assembled with the blade 41 is located outside the rotating hole 33 of the adapter 3, the portion of the rotating seat 42 assembled with the tooth block 43 is pivoted to the rotating hole 33, and the tooth block 43 is located in the accommodating groove 31 and has a plurality of rotating teeth 431 engaged with the plurality of fixed teeth 22, so that when the adapter 3 pivots relative to the blade frame 2, the plurality of rotating teeth 431 of the tooth block 43 are engaged with the plurality of fixed teeth 22 of the fixed shaft 21 to 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 rotating position, thereby changing the inclination angle range of the blade 41.

By means of the above-mentioned mechanism combination and mutual matching operation, the centrifugal force generated by the horizontal rotation of the rotating blade frame 2 of the ceiling fan 1 makes the fan blades 4 rotate outwards from the original folding state, so that the blades 41 synchronously drive the rotating base 42, and the rotating base 42 drives the adapter 3 to pivot relative to the blade frame 2, the rotating teeth 431 of the tooth block 43 engage and rotate along the fixed teeth 22 of the fixed shaft 21 during the pivoting process, so that the adapter 3 can drive the moving blades 41 to rotate positively relative to the rotating holes 33 as the axis, thus changing the inclination angle of the blades 41, and making the ceiling fan 1 have better air circulation effect during the operation. The ceiling fan 1 is stopped and the above-mentioned operation is reversed to change the fan blades 4 from the outward-rotated configuration to the folded configuration.

Further, the detailed characteristics of each component of the blade frame and blade combination of the ceiling fan and the combination type among each other are explained.

The rotary hole 33 is provided with a ring groove 331, the bottom surface of the ring groove 331 is provided with a limit bump 332, the rotary seat 42 is provided with an arc-shaped rib 421 slidably disposed in the ring groove 331, a rotary notch 422 is formed between two ends of the arc-shaped rib 421 and accommodates the limit bump 332, and the length of the rotary notch 422 is greater than that of the limit bump 332. In addition to the sliding operation of the arc rib 421 provided by the ring groove 331, the present invention further accommodates the limit protrusion 332 through the rotation notch 422 of the rotation base 42, so that the rotation range of the rotation base 42 is supported by two ends of the limit protrusion 332 from two ends of the arc rib 421, respectively, so that the rotation base 42 is at an inclination angle X2 from an initial position (the rotation base 42 is in a horizontal state, as shown in fig. 8) to a rotation position, and the inclination angle X2 is 7 ° to 20 ° (as shown in fig. 9), thereby preventing the inclination angle of the blade 41 from being raised excessively under the integral driving of the rotation base 42.

The adapter 3 includes an upper cover 34 and a lower seat 35, and the upper cover 34 and the lower seat 35 are recessed to form the accommodating groove 31, the through hole 32 is disposed on the lower seat 35, the rotation hole 33 is disposed between the upper cover 34 and the lower seat 35, and the limit protrusion 332 is disposed on the lower seat 35. The upper seat 34 and the lower seat 35 form a groove lower 31 to lightly seal the mutual meshing mechanism of the fixed teeth 22 and the rotating teeth 431, and reduce the influence of the invasion of external foreign matters on the meshing and rotating process.

The rotating seat 42 includes a shaft penetrating portion 423 and a set of blade portions 424 connected to each other, the shaft penetrating portion 423 is pivotally disposed in the rotating hole 33, the arc rib 421 is disposed along an outer peripheral surface of the shaft penetrating portion 423, the tooth block 43 is fixed to an opposite end of the shaft penetrating portion 423 connected to the set of blade portions 424, the set of blade portions 424 are provided with a set of blade grooves 425, and one end of the blade 41 is received and locked in the set of blade grooves 425.

In addition, the shaft penetrating portion 423 and the blade portion 424 are not in the same horizontal shape, and a virtual line L1 extending horizontally from the shaft penetrating portion 423 to the blade portion 424 is defined, and a raising angle X1 (as shown in fig. 5) is formed between the virtual line and the blade portion 424, the raising angle is 5 ° to 10 °, and folding of the blades 4 can be prevented from interfering with each other by setting the raising angle.

A supporting rib 36 extending toward the fixed shaft 21 is disposed in the accommodating groove 31, and a supporting arc 361 sliding against the fixed shaft 21 is disposed around the supporting rib 36. The aforementioned support ribs 36 extend from the inside of the upper cover 34. The supporting arc 361 of the supporting rib 36 slides against the periphery of the fixed shaft 21, so that the axial deformation of the fixed shaft 21 caused by the meshing rotation force of the tooth block 43 is reduced, and the meshing and meshing rotation process between the tooth block 43 and the fixed shaft 21 can be stabilized. The fixed teeth 22 of the fixed shaft 21 and the rotating teeth 431 of the tooth block 43 are in the form of bevel gears.

The adapter 3 is fixedly provided with a rotary disc 5, the rotary disc 5 is pivoted on the blade frame 2, and the fixed shaft 21 penetrates through the rotary disc 5. One end of the connecting rod 51 is connected to the rotary disc 5, and the other end of the connecting rod 51 is connected to the rotary disc 5 on the other blade frame 2, so as to synchronously drive the fan blades 4 to be unfolded and folded.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent variations and modifications made to the above embodiment according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A blade frame and blade combination of a ceiling fan, comprising:

a blade 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 fixing teeth which are arranged in a ring shape;

a switching seat which is pivoted on the blade frame and is internally provided with a containing groove, the peripheral side of the switching seat is respectively provided with a through hole and a rotating hole which are communicated with the containing groove in the axial direction and the radial direction, and the fixed shaft is positioned in the containing groove by penetrating through the through hole by one end of the plurality of fixed teeth;

and a fan blade, the fan blade includes a blade, a rotating seat and a tooth block, the both ends of the rotating seat are connected with the blade and the tooth block separately, and the part of the rotating seat group equipped with the blade is positioned outside the rotating hole of the adapter seat, and the part of the rotating seat group equipped with the tooth block is pivoted in the rotating hole, and the tooth block is positioned in the containing groove and has several rotating teeth meshed with the several fixing teeth, so that the several rotating teeth of the tooth block are meshed with the several fixing teeth of the fixed shaft when the adapter seat is pivoted relative to the blade frame, the tooth block synchronously drives the rotating seat and the blade to switch between an initial position and a rotating position, and the inclination angle of the blade is changed.

2. The blade frame and blade assembly of claim 1, wherein the rotation hole has an annular groove, the bottom surface of the annular groove has a limit protrusion, the rotation base has an arc rib slidably disposed in the annular groove, a rotation gap is formed between two ends of the arc rib and receives the limit protrusion, and the length of the rotation gap is greater than the length of the limit protrusion, such that the rotation range of the rotation base from the two ends of the arc rib are respectively supported by two ends of the limit protrusion, such that the rotation base is at the inclination angle from the initial position to the rotation position.

3. The ceiling fan blade frame and blade combination of claim 2 wherein the angle of inclination is 7 ° to 20 °.

4. The blade frame and blade assembly of claim 2, wherein the adapter comprises an upper cover and a lower base, the upper cover and the lower base are recessed to form the receiving slot, the through hole is disposed in the lower base, the rotation hole is disposed between the upper cover and the lower base, and the limiting protrusion is disposed on the lower base.

5. The blade frame and blade assembly of claim 1, wherein the rotating base comprises a shaft portion and a set of blade portions connected to each other, the shaft portion is pivotally disposed in the rotating hole, the arc-shaped rib is disposed along an outer circumferential surface of the shaft portion, the tooth block is fixed to opposite ends of the shaft portion connected to the set of blade portions, the set of blade portions has a set of blade slots, and one end of the blade is received and locked in the set of blade slots.

6. The blade frame and blade assembly of claim 5, wherein the shaft portion and the blade portion are non-horizontally aligned, and a virtual line extending horizontally from the shaft portion to the blade portion is defined, and a lift angle is formed between the virtual line and the blade portion.

7. The ceiling fan blade frame and blade combination of claim 6 wherein the lift angle is 5 ° to 10 °.

8. The blade frame and blade assembly of claim 1, wherein the receiving groove has a supporting rib extending toward the fixed shaft, and a supporting arc surface is disposed around the supporting rib and slidably contacts the fixed shaft.

9. The blade frame and blade assembly of claim 1, wherein the adapter has a rotatable plate fixed thereto, the rotatable plate being pivotally mounted to the blade frame, and the fixed shaft passing through the rotatable plate.