TREA

CHRISTMAS TREE WITH BLADES ROTATED BY WIND POWER

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Information

  • Patent Application
  • 20200329896
  • Publication Number
    20200329896
  • Date Filed
    April 17, 2019
    5 years ago
  • Date Published
    October 22, 2020
    4 years ago
  • Inventors
    • Liang; Hui
Information
Abstract
A Christmas tree includes a Christmas tree body. The Christmas tree body has an upright pole and a blade unit that is detachably mounted to the pole to form the Christmas tree. Blades of the blade unit are rotated around the pole by means of natural wind power, thereby improving the fun of the Christmas tree. The structure design is ingenious and reasonable, energy-saving and environmentally friendly, and practical. It is suitable for indoor and outdoor applications. Besides, the assembly is easy, the transportation is convenient, and the cost is low.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention

The present invention relates to a Christmas tree, and more particularly to a Christmas tree with blades rotated by wind power.


2. Description of the Prior Art

Christmas is an important holiday in Western countries. More and more countries promote Christmas culture, and Christmas trees are essential decorations for Christmas. The traditional Christmas trees are based on live trees. Using live trees as Christmas trees causes great damage to the environment. Later, people uses artificial Christmas trees instead of live trees. However, the artificial Christmas tree is large in size and cannot be disassembled, causing trouble in the transportation. Moreover, the Christmas tree cannot be squeezed during transportation, resulting in a high cost of the artificial Christmas tree.


In order to increase the fun of the Christmas tree, the branches of the Christmas tree are made in the form of blades, and lighting ornaments are provided on the blades. The blades are rotated by a driving device such as a motor. The lighting ornaments are turned on through a controller. In the process of rotating the Christmas tree, it has a better visual effect, increasing the enjoyment of the Christmas tree. However, this rotating Christmas tree has a complicated design and consumes a lot of power. The application is limited, and it is not practical.


Accordingly, the inventor of the present invention has devoted himself based on his many years of practical experiences to solve these problems.


SUMMARY OF THE INVENTION

In view of the drawbacks of the prior art, the primary object of the present invention is to provide a Christmas tree with blades rotated by wind power. A blade unit is detachably mounted on a pole to form a Christmas tree. Blades of the blade unit are rotated around the pole by means of natural wind power, thereby improving the fun of the Christmas tree. The structure design is ingenious and reasonable, energy-saving and environmentally friendly, and practical. It is suitable for indoor and outdoor applications. Besides, the assembly is easy, the transportation is convenient, and the cost is low.


In order to achieve the above object, the present invention adopts the following technical solutions.


A Christmas tree comprises a Christmas tree body. The Christmas tree body has an upright pole and a blade unit that is detachably mounted to the pole. The blade unit includes a sleeve and a plurality of blades disposed on the sleeve. The plurality of blades are spaced and arranged around an outer circumference of the sleeve. The sleeve is a hollow structure. The sleeve is sleeved on the pole and rotatable relative to the pole. The blades each have a curved surface.


The invention has obvious advantages and beneficial effects compared with the prior art, in particular, it can be known from the above technical solutions. The blade unit is detachably mounted on the pole to form a Christmas tree. The blades of the blade unit are rotated around the pole by means of natural wind power, thereby improving the fun of the Christmas tree. The structure design is ingenious and reasonable, energy-saving and environmentally friendly, and practical. It is suitable for indoor and outdoor applications. Besides, the assembly is easy, the transportation is convenient, and the cost is low.





BRIEF DESCRIPTION OF THE DRAWINGS


FIG. 1 is a perspective view according to a first embodiment of the present invention;



FIG. 2 is an exploded view according to the first embodiment of the present invention;



FIG. 3 is a front view according to the first embodiment of the present invention;



FIG. 4 is a top view according to the first embodiment of the present invention;



FIG. 5 is a schematic view of the blade according to the first embodiment of the present invention (viewed in the direction A of FIG. 4);



FIG. 6 is another schematic view of the blade according to the first embodiment of the present invention (viewed in the direction B of FIG. 4); and



FIG. 7 is a perspective view according to a second embodiment of the present invention.





DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings.


Referring to FIG. 1 to FIG. 7, there are shown specific structures of two embodiments of the present invention.


A Christmas tree with blades rotated by wind power comprises a Christmas tree body. The Christmas tree body has an upright pole 10 and a blade unit 20 that is detachably mounted to the pole 10.


The blade unit 20 includes a sleeve 21 and a plurality of blades 22 disposed on the sleeve 21. The blades 22 are spaced and arranged around the outer circumference of the sleeve 21. The sleeve 21 is a hollow structure. The sleeve 21 is sleeved on the pole 10 and is rotatable relative to the pole 10. Each blade 22 has a curved surface. Each blade 22 is gradually widened from top to bottom, so that the outer contour of the blade unit 20 is gradually enlarged from top to bottom.


The blade unit 20 is detachably mounted to the pole 10 to form a Christmas tree. The blades 22 of the blade unit 20 are rotated around the pole 10 by means of natural wind power, thereby improving the fun of the Christmas tree. The structure design is ingenious and reasonable, energy-saving and environmentally friendly, and practical. It is suitable for indoor and outdoor applications. Besides, the assembly is easy, the transportation is convenient, and the cost is low.


The pole 10 is provided with two or more blade units 20. The blade units 20 are vertically spaced from each other and arranged on the pole 10. The upper and lower adjacent blade units 20 rotate in the same direction, or the upper and lower adjacent blade units 20 rotate in clockwise and counterclockwise directions, respectively. In general, a spacer is provided between the adjacent blade units 20 (not shown). Before installing the adjacent blade unit 20, a spacer is first sleeved on the sleeve 21, and the spacer is fixed relative to the sleeve 21. Of course, the spacer is detachably mounted on the sleeve 21. Thus, the adjacent blade units 20 are spaced apart from each. Preferably, the pole 10 is provided with three blade units 20.


As shown in FIG. 2, FIG. 5 and FIG. 6, each blade 22 has a bent positioning bar and a blade body 221 connected to the bent positioning bar. Each blade body 221 has the curved surface. The bent positioning bar has an upper horizontal bar 222, a lower horizontal bar 223, and an oblique bar 224. The oblique bar 224 is connected to the outer ends of the upper horizontal bar 222 and the lower horizontal bar 223. The blade body 221 is connected to any one, two or all of the upper horizontal bar 222, the lower horizontal bar 223, and the oblique bar 224. The inner ends of the upper horizontal bar 222 and the lower horizontal bar 223 are connected to the sleeve 21.


Preferably, the bent positioning bar adopts a metal wire, and the blade body 221 is a curved thin metal sheet corresponding in shape to the bent positioning bar. During the production, the metal wire is bent into the predetermined shape, and the curved thin metal sheet is formed into the predetermined shape, and then the curved thin metal sheet is welded to the metal wire. In the first embodiment, the three sides of the curved thin metal sheet are welded to the upper horizontal bar 222, the lower horizontal bar 223 and the oblique bar 224, respectively. The structural stability and the overall structural strength are better. In this way, through the structural design of the blades 22, the assembled connection of the blades 22 on the sleeve 21 is simple and easy. The production efficiency and the production yield are improved. The blades 22 have good structural strength, are not easily damaged, and have good durability. In particular, the unique design of the blades 22 ensures that the blades 22 have the advantages of being lightweight and being blown by little wind.


The upper and lower ends of the sleeve 21 are connected with an upper positioning ring 23 and a lower positioning ring 24, respectively. The upper positioning ring 23 and the lower positioning ring 24 surround the sleeve 21. The inner end of the upper horizontal bar 222 is connected to the upper positioning ring 23, and the inner end of the lower horizontal bar 223 is connected to the lower positioning ring 24.


The inner ends of some of the upper horizontal bars 222 of the blades 22 are extended until they are connected to the sleeve 21, and the inner ends of some of the lower horizontal bars 223 of the blades 22 are extended until they are connected to the sleeve 21 to form the connection between the upper positioning ring 23, the lower positioning ring 24 and the sleeve 21. Preferably, the upper horizontal bar 222 and the lower horizontal bar 223 are respectively welded to the upper positioning ring 23 and the lower positioning ring 21 as well as the sleeve 21. In the first embodiment, for every two adjacent blades 22, the upper horizontal bar 222 and the lower horizontal bar 223 of one blade 22 are connected to the upper positioning ring 23 and the lower positioning ring 24, and the inner ends of the upper horizontal bar 222 and the lower horizontal bar 223 of the other blade 22 are extended and connected to the sleeve 21.


Preferably, the sleeve 21 includes a sleeve body 211, an upper connector 212 and a lower connector 213. The upper connector 212 and the lower connector 213 are detachably connected to the upper and lower ends of the sleeve body 211, respectively. The upper positioning ring 23 is connected to the upper connector 212, and the lower positioning ring 24 is connected to the lower connector 213.



FIG. 4 is a top view of the present invention. For the same blade 22, the outer end of the lower horizontal bar 223 extends outwardly beyond the outer end of the upper horizontal bar 222. The oblique bar 224 is curved. All the oblique bars 224 of the same blade unit 20 are curved in the same circumferential direction.


The top end of the pole 10 is provided with a decorative member 11. The decorative member 11 is located above the blade unit 20. The decorative member 11 is detachably mounted to the top end of the pole 10. A lighting member is provided on the blades. The lighting member further increases the dynamic and visual effect of the Christmas tree when rotated, and the usability is good.


The pole 10 is detachably connected to a base 12. The base 12 is located at the bottom end of the pole 10. The lower end of the base 12 is provided with legs 121 for easy placement or pegs 122 for facilitating insertion and positioning.


As shown in FIG. 1, FIG. 2 and FIG. 3, in the first embodiment, the lower end of the base 12 is provided with legs 121 for easy placement, which is suitable for indoor placement. The number of the legs 121 is four. The four legs 121 are disposed corresponding to the four corners of the pole 10.


As shown in FIG. 7, in the second embodiment, the lower end of the base 12 is provided with pegs 22 for facilitating insertion and positioning, which is suitable for outdoor placement. The number of the pegs 122 is three. The three pegs 122 are arranged in a triangular shape and connected to the base 12. The bottom ends of the pegs 122 are gradually tapered from top to bottom.


When assembled, the pole 10 is placed vertically, and the blade unit 20 is sleeved on the pole 10 through the sleeve 21 from the top. Before installing another adjacent blade unit 20, a spacer is first sleeved on the sleeve 21. The spacer is fixed relative to the sleeve 21 so as to keep a spacing between the two adjacent blade units 20. After the blade units 20 are installed, the corresponding base 12 is assembled to the pole 10 to form a Christmas tree to be placed indoors or outdoors according to the user's need. Then, the Christmas tree is placed in a desired position Finally, the decorative member 11 and the lighting member are placed on the Christmas tree, respectively.


Although particular embodiments of the present invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the present invention. Accordingly, the present invention is not to be limited except as by the appended claims

Claims
  • 1. A Christmas tree, comprising a Christmas tree body; the Christmas tree body having an upright pole and a blade unit that is detachably mounted to the pole; the blade unit including a sleeve and a plurality of blades disposed on the sleeve, the plurality of blades being spaced and arranged around an outer circumference of the sleeve, the sleeve being a hollow structure, the sleeve being sleeved on the pole and rotatable relative to the pole; the plurality of blades each having a curved surface.
  • 2. The Christmas tree as claimed in claim 1, wherein each of the blades is gradually widened from top to bottom so that an outer contour of the blade unit is gradually enlarged from top to bottom.
  • 3. The Christmas tree as claimed in claim 2, wherein the blade unit includes at least two blade units that are vertically spaced from each other and arranged on the pole; the upper and lower adjacent blade units rotate in a same direction, or the upper and lower adjacent blade units rotate in clockwise and counterclockwise directions, respectively.
  • 4. The Christmas tree as claimed in claim 1, wherein each of the blades has a bent positioning bar and a blade body connected to the bent positioning bar; the blade body has the curved surface; the bent positioning bar has an upper horizontal bar, a lower horizontal bar and a oblique bar, the oblique bar is connected to outer ends of the upper horizontal bar and the lower horizontal bar; the blade body is connected to any one, two or all of the upper horizontal bar, the lower horizontal bar and the oblique bar; and inner ends of the upper horizontal bar and the lower horizontal bar are connected to the sleeve.
  • 5. The Christmas tree as claimed in claim 4, wherein upper and lower ends of the sleeve are connected with an upper positioning ring and a lower positioning ring respectively, the upper positioning ring and the lower positioning ring surround the sleeve; the inner end of the upper horizontal bar is connected to the upper positioning ring, and the inner end of the lower horizontal bar is connected to the lower positioning ring.
  • 6. The Christmas tree as claimed in claim 4, wherein the outer end of the lower horizontal bar extends outwardly beyond the outer end of the upper horizontal bar, the oblique bar is curved, all the oblique bars of the blades of the blade unit are curved in a same circumferential direction.
  • 7. The Christmas tree as claimed in claim 1, wherein a top end of the pole is provided with a decorative member, the decorative member is located above the blade unit, and the decorative member is detachably mounted to the top end of the pole.
  • 8. The Christmas tree as claimed in claim 5, wherein the sleeve includes a sleeve body, an upper connector and a lower connector, the upper connector and the lower connector are detachably connected to upper and lower ends of the sleeve body, respectively; the upper positioning ring is connected to the upper connector, and the lower positioning ring is connected to the lower connector.
  • 9. The Christmas tree as claimed in claim 1, wherein the pole is detachably connected to a base, and the base located at a bottom end of the pole.
  • 10. The Christmas tree as claimed in claim 1, wherein a lighting member is provided on the blades.