201230977 六、發明說明： 【發明所屬之技術領域】 本發明係有關一種傘具，尤指一種裴設有風扇之傘具。 【先前技術】 習知之傘具係用以遮擋雨水或陽光，而近年來有許多業者 在傘具上加裝太陽能板或通風裝置等配件，使傘具具備有更多 功能，進而提升傘具之使用便利性，如TWM285257專利案所 揭露。然該專利案係將整組風扇包括馬達和扇葉等元件裝設於 傘面下，因此傘面下之風扇大小受限於該傘面之空間，同時該 風扇也佔用了傘面下大部分之空間。 雖有TW013576之傘具，係將整組風扇裝設於傘面上，其 中風扇和馬達等元件均設於伞具頂端之開口上，雖然裝設之風 扇並不會佔據傘面下之空間，但該專利卻無法用以遮蔽雨水。 為此’如何將風扇裝設於傘具上卻不會佔據過多傘下之空間， 且該傘具亦可遮蔽雨水或陽光，乃係本業界人士亟待面對之課 題。 Ί 【發明内容】 且本發明之主要目的係提供一種可遮擋風雨或陽光之傘 具’且該傘具設置有一風扇，該風扇佔傘下一小部分空間即可 使傘下環境更加涼爽通風。 為了達成上述之目的，本發明所提供之傘具包括有一主 f S扇和一動力裝置。該主桿之底端周圍樞設有複數個呈 201230977 放射狀向外延伸之傘骨，且該些傘骨結合傘部形成一傘面；該 風扇係設置於該主桿，且位於該傘面之下；該動力裝置係設置 於該傘面上方，用以驅動該風扇轉動。 藉此，設置於傘面上之動力裝置不會佔據傘面下之空間， 使得傘面下的^間更為充裕，且可加大伞面下風扇之扇葉，使 扇葉帶動傘内空氣流通更有效率，更可依需求配裝體積較大且 轉速較快之動力裝置，使傘面下之風扇轉動更為有力，傘面下 之裱扰也更為通風涼爽而不悶熱。因此使用者可更充分地利用 傘面下之空間。 【實施方式】 以下將藉由較佳實施例說明本發明之結構特徵及其預期 達成之功效’惟_以_本發明所欲賴之辦，合先敘明。 請參考圖1至圖2。本發明所提供之一傘具，該伞具包含 有一主桿1、一風扇2、一動力裝置3。該主桿1之頂端周圍 樞°又、，合多個放射狀排列且向外延伸之傘骨10，該些傘骨10 結合傘布形成—傘面1卜其中該傘骨10和該主桿丨之間結合 t支桿可展開撐起該些傘骨10亦可收合使該些傘骨職擺 2該主桿卜從而構成一般可收合及開展之傘具。而該風扇 2設置於該主桿，且位於該傘面之下方，較佳者，該風扇2設 置於該主桿1接賴料u德置。猶動力裝置3設置於 該傘面11之上方’侧以驅動該風扇2轉動。較佳者，該伞 具更包含有-蓋體4’該蓋體4係位於該傘面之上方且容設該 201230977 動力裝置3於其中’藉此可覆蓋該動力裝置3避免該動力裝置 3受雨水侵蝕、陽光曝曬或其他外力碰撞而造成故障 ，從而可 保護該動力襞置3且延長其使用壽命。 明參考圖3至圖4A。於本發明一較佳實施例中，該風扇 2與該動力裴置3之間連接有一傳動裝置5，該傳動裝置5係 藉由該動力裴置3驅動進而旋轉該風扇2。而該風扇2具有一 固定座20、一旋轉環21和複數個扇葉22，該固定座20係呈 環狀且固设於該主桿！上，而該旋轉環21係可轉動地設置於 該固定座20上，且該旋轉環21内側環設有一内齒12，各該 扇葉22係樞設於該旋轉環21之外側，而該主桿丨對應該旋轉 環21之位置開設有-通口。較佳者，該傳動裝置5係包含有 -驅動件50、-殼體51和—傳動件52，該殼體51設置於該 主桿1内，且該殼體51之一側設有對應該通口之一開口 53， 且該殼體51之頂端開設有一穿孔54，如圖3所示。該驅動件 5〇〜又於該雜51巾，且該驅動件5〇環設有一齒部$⑽；該 傳動件52係為_齒輪’可轉動地設置於該開口 Μ内且餐合連 接該齒部500和該旋轉環21之内们2，如圖4a所示。而該 動力《置3具有-馬達和—與馬達·連接之電池（圖未 示）’該馬達制設於該傘面上且具有—動力輸出軸％，而該 動力輸出軸3〇穿過該殼體η之穿孔M並連接馳動件5〇 ; 而該電池㈣提供該馬達電力，該馬達在魏該電池之電力 後’將電能轉換成動能來轉動其動力輪_ 3()。藉此，該動 5 201230977 、可使該驅動件5G轉動，秘於該軸件之齒部· p 5時喊轉動件52轉動’從*令織轉環21旋轉。因此， 樞叹於該旋轉%< 21之扇葉22便可魏主桿丨旋轉而產生氣 f。此外本發明亦可林設贿體5丨，而直接將該驅動件5〇 设置於該主桿丨内，並將該傳動件％設置於該主桿1之通口 中，而達成相同之功效。 综上所述’本發贿提供之傘具，*健設有該風扇可使 傘下涼爽通風’驅動該風扇轉動之動力裝置更不會佔用該伞面 下之任何雜，使得該傘面下的賴有衫的空，使用者利 用再者由於該動力裝置係設置於該傘面上，因此該動力裝置 在長時間驅動該顧猶時所產生之減並不會滯留於伞面 :造成悶熱。由上可知，本發明不健構新穎實用，更具有顯 #、步之力效符合專利法相關規定，爰依法提起專利申請， 鑑請鈞局早日核予專利，實感德便。 【圖式簡單說明】 圖1係本發明一較佳實施例之立體圖。 圖2係本發明一較佳實施例之侧面剖視圖。 圖3係本發明一較佳實施例之局部分解圖。 圖4係本發明一較佳實施例之局部剖視圖。 圖4A係圖4之部分放大圖 【主要元件符號說明】 3〇 :動力輸出軸 1 :主桿 201230977 ίο :傘骨 11 :傘面 12 :内齒 2 :風扇 20 :固定座 21 :旋轉環 22 :扇葉 3 :動力裝置 4 ·.蓋體 5 :傳動裝置 50 ： 驅動件 51 ： 殼體 52 ： 傳動件 53 ： 開口 54 ： 穿孔201230977 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to an umbrella, and more particularly to an umbrella with a fan. [Prior Art] The conventional umbrella is used to cover rain or sunlight. In recent years, many manufacturers have installed solar panels or ventilation devices on the umbrella to make the umbrella have more functions, and thus enhance the umbrella. Convenience, as disclosed in the TWM285257 patent. However, the patent system installs a whole set of fans, including motors and blades, under the umbrella surface, so the size of the fan under the umbrella surface is limited by the space of the umbrella surface, and the fan also occupies most of the surface of the umbrella. Space. Although there is an umbrella of TW013576, the whole set of fans is installed on the umbrella surface, wherein components such as a fan and a motor are disposed on the opening of the top of the umbrella, although the installed fan does not occupy the space under the umbrella surface. But the patent cannot be used to cover rainwater. To this end, how to install a fan on an umbrella without occupying too much space under the umbrella, and the umbrella can also cover rain or sunlight is a problem that the industry needs to face. SUMMARY OF THE INVENTION The main object of the present invention is to provide an umbrella that can block wind and rain or sunlight, and the umbrella is provided with a fan that occupies a small portion of the space of the umbrella to make the environment under the umbrella more cool and ventilated. In order to achieve the above object, the umbrella provided by the present invention comprises a main f S fan and a power unit. A plurality of ribs extending radially outwardly of the 201230977 are pivoted around the bottom end of the main pole, and the ribs are combined with the umbrella portion to form a canopy; the fan is disposed on the main pole and located on the umbrella surface The power device is disposed above the umbrella surface for driving the fan to rotate. Therefore, the power device disposed on the umbrella surface does not occupy the space under the umbrella surface, so that the space under the umbrella surface is more abundant, and the fan blade of the fan under the umbrella surface can be enlarged, so that the fan blade drives the air inside the umbrella. The circulation is more efficient, and the power unit with larger volume and faster rotation speed can be equipped according to the demand, so that the fan under the umbrella surface can be rotated more vigorously, and the disturbance under the umbrella surface is more ventilated and cool without sultry heat. Therefore, the user can more fully utilize the space under the umbrella. [Embodiment] Hereinafter, the structural features of the present invention and the intended effects thereof will be described by way of preferred embodiments, which are described in the following. Please refer to Figure 1 to Figure 2. The umbrella provided by the present invention comprises a main pole 1, a fan 2, and a power unit 3. The apex 10 of the main pole 1 is pivoted and arranged in a plurality of radial and outwardly extending ribs 10, and the ribs 10 are formed in combination with the umbrella fabric - the umbrella surface 1 and the rib 10 and the main pole The stalks 10 can be unfolded between the rafts to support the ribs 10, and the ribs can be folded so that the ribs are placed in the main poles to form a generally collapsible and carryable umbrella. The fan 2 is disposed on the main pole and located below the umbrella surface. Preferably, the fan 2 is disposed on the main pole 1 to receive the material. The heave power unit 3 is disposed on the upper side of the umbrella surface 11 to drive the fan 2 to rotate. Preferably, the umbrella further comprises a cover body 4 ′ which is located above the umbrella surface and accommodates the 201230977 power unit 3 in which the power unit 3 can be covered thereby to avoid the power unit 3 It is protected by rain, sun exposure or other external forces, which can protect the power unit 3 and extend its service life. 3 to 4A. In a preferred embodiment of the present invention, a transmission device 5 is coupled between the fan 2 and the power unit 3, and the transmission unit 5 is driven by the power unit 3 to rotate the fan 2. The fan 2 has a fixing base 20, a rotating ring 21 and a plurality of blades 22, and the fixing base 20 is annular and fixed to the main rod! The rotating ring 21 is rotatably disposed on the fixing base 20, and an inner tooth 12 is disposed on the inner ring of the rotating ring 21, and each of the blades 22 is pivotally disposed on an outer side of the rotating ring 21. The main rod 开 is provided with a - port corresponding to the position of the rotating ring 21. Preferably, the transmission device 5 includes a driving member 50, a housing 51 and a transmission member 52. The housing 51 is disposed in the main rod 1, and one side of the housing 51 is correspondingly disposed. One opening 53 is formed in the opening, and a through hole 54 is defined in the top end of the housing 51, as shown in FIG. The driving member 5〇 is further disposed on the miscellaneous 51, and the driving member 5 is provided with a tooth portion $(10); the transmission member 52 is rotatably disposed in the opening 且 and the meal is connected The tooth portion 500 and the inside of the rotating ring 21 are as shown in Fig. 4a. And the power "set 3 has a motor and - a battery connected to the motor (not shown)" the motor is mounted on the umbrella surface and has a power output shaft %, and the power output shaft 3 〇 passes through the The perforation M of the housing η is connected to the moving member 5 〇; and the battery (4) provides the motor power, and the motor converts the electric energy into kinetic energy to rotate its power wheel _ 3 () after the power of the battery. Thereby, the movement 5 201230977 can rotate the driving member 5G, and the rotation of the rotating member 52 when the tooth portion p 5 of the shaft member is rotated is rotated from the * woven rotating ring 21. Therefore, the blade 22 which is sighed by the rotation % < 21 can rotate the main rod to generate the gas f. In addition, the present invention can also set the bribe body 5丨, and directly install the driving member 5〇 in the main rod ,, and set the transmission member % in the opening of the main rod 1 to achieve the same effect. In summary, the umbrella provided by the bribe, the *jian has the fan to make the umbrella cool and ventilated, and the power device that drives the fan to rotate does not occupy any miscellaneous under the umbrella surface, so that the umbrella surface Depending on the space of the shirt, the user uses the power unit to be placed on the umbrella surface. Therefore, the power unit will not be retained on the umbrella surface when the driver is driven for a long time: it causes sultry heat. It can be seen from the above that the present invention is novel and practical, and has the advantages and advantages of the invention. It conforms to the relevant provisions of the Patent Law, and legally filed a patent application in accordance with the law. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a preferred embodiment of the present invention. Figure 2 is a side cross-sectional view of a preferred embodiment of the present invention. Figure 3 is a partial exploded view of a preferred embodiment of the present invention. Figure 4 is a partial cross-sectional view of a preferred embodiment of the present invention. 4A is a partial enlarged view of FIG. 4 [Description of main component symbols] 3〇: power output shaft 1 : main pole 201230977 ίο : rib 11 : umbrella surface 12 : internal tooth 2 : fan 20 : fixing seat 21 : rotating ring 22 : Blade 3 : Power unit 4 · Cover 5 : Transmission 50 : Drive 51 : Housing 52 : Transmission 53 : Opening 54 : Perforation