Abstract:
An electric punching device includes a driving transmission frame, a group of reamers and a driving board. The group of reamers are set on the driving board. The driving transmission frame includes a driving device and a transmission device, and the driving device includes a transmission shaft, a transmission shaft bracket and a transmission device and the transmission device is driven by a motor and drives the transmission shaft to turn. The motor and a motor bracket may cooperate with a gear, a lever, a strap or a chain, or the motor and the transmission shaft bracket may cooperate with the gear, the lever, the strap or the chain. When operating, the transfer performance and stability of the structure is good, space occupied is small, and cost is low.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the invention 
         [0002]    The present invention relates to an electric punching device belonged to office supplies, and more especially to a transmission frame of the electric punching device for driving. 
         [0003]    2. Description of the Prior Art 
         [0004]    At present, punching devices are used to punch on files or loose-leaves and include manual punching devices and electric punching devices. Although the manual punching devices are used widely, but users have to exert themselves to operate on the devices when they want to punch a pile of thick paper. However, the users&#39; strength is not great enough to punch any holes sometimes, so the efficiency of such manual punching devices is low somewhat, and the users are prone to be tired. On the other hand, the known electric punching device&#39; structure is complicated, volume is large, space occupied is also large, cost is high, and transfer performance is poor, stability of structure is low. 
         [0005]    Hence, inventors of the present invention have this idea that the above shortages are able to be improved and finally suggest the present invention which is a reasonable design and an effective improvement basing on deep research. 
       SUMMARY OF THE INVENTION 
       [0006]    An object of the present invention is to provide an electric punching device, when operating, the transfer performance and stability of the structure are good, and space occupied is small, cost is low. 
         [0007]    To achieve the above-mentioned object, an electric punching device is disclosed. The electric punching device includes a driving transmission frame, a group of reamers, and a driving board, wherein the driving transmission frame includes a driving device and a transmission device. The driving device includes a motor and the transmission device includes a transmission shaft, a transmission shaft bracket and a transmission component. The transmission component is driven by the motor and drives the transmission shaft to turn. The transmission shaft is set on the transmission shaft bracket, the driving board cooperates with the transmission shaft, and the reamers are set on the driving board. 
         [0008]    Preferably, the transmission component includes an active component and a passive component, and the transmission of the transmission component is a gear transmission, a chain transmission, a strap transmission, a screw transmission or a cam lever transmission. 
         [0009]    Preferably, the transmission component is a cylindrical gear, a conical gear, a worm, a gear train, an assembly of gear and strap or an assembly of gear and chain. 
         [0010]    Preferably, the motor is set on the transmission shaft bracket to drive the active component, the active component drives the passive component, and the active component cooperates with the transmission shaft to drive the transmission shaft to turn. 
         [0011]    Preferably, the driving device further includes a motor bracket, and the motor is set on the motor bracket to drive the active component set on the motor bracket or on the transmission shaft bracket. 
         [0012]    Preferably, the active component and the motor are set on two sides of the transmission shaft bracket respectively, the motor drives the active component, and at least part of the passive component is set on the transmission shaft near to the transmission shaft bracket and cooperates with the active component. 
         [0013]    Preferably, the active component and the motor are set on the two sides of the transmission shaft bracket respectively, and the passive component is set on one end of the transmission shaft and cooperates with the active component. 
         [0014]    An advantage of the present invention is that the motor and the motor bracket may cooperate with a gear, a lever, a strap or a chain, or the motor and the transmission shaft bracket may cooperate with the gear, the lever, the strap or the chain. When operating, the transfer performance and stability of the structure is good, and space occupied is small, cost is low. 
         [0015]    To further understand features and technical contents of the present invention please refer to the following detailed description and drawings related the present invention. But the drawings are only used to be references and explanations, not be limits to the present invention. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0016]      FIG. 1  is an isometric view of the first embodiment of the present invention; 
           [0017]      FIG. 2  is an isometric view of the second embodiment of the present invention; 
           [0018]      FIG. 3  is an isometric view of the third embodiment of the present invention; 
           [0019]      FIG. 4  is an isometric view of the forth embodiment of the present invention; 
           [0020]      FIG. 5  is an isometric view of the fifth embodiment of the present invention; 
           [0021]      FIG. 6  is an isometric view of the sixth embodiment of the present invention; 
           [0022]      FIG. 7  is an isometric view of the seventh embodiment of the present invention; 
           [0023]      FIG. 8  is an isometric view of the eighth embodiment of the present invention; 
           [0024]      FIG. 9  is an isometric view of the ninth embodiment of the present invention; 
           [0025]      FIG. 10  is an isometric view of the tenth embodiment of the present invention; 
           [0026]      FIG. 11  is an isometric view of the eleventh embodiment of the present invention; 
           [0027]      FIG. 12  is an isometric view of the twelfth embodiment of the present invention; 
           [0028]      FIG. 13  is an isometric view of the thirteenth embodiment of the present invention; 
           [0029]      FIG. 14  is an isometric view of the fourteenth embodiment of the present invention; 
           [0030]      FIG. 15  is an isometric view of the fifteenth embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0031]    Please referring to  FIGS. 1-28 , a driving transmission frame  100  of the electric punching device of the present invention includes a driving device and a transmission device, and the driving device includes a motor  12 . The transmission device includes a transmission component (a first transmission component), a transmission shaft bracket  11  and a transmission shaft  13 . The transmission manner of the transmission device may be designed as a cylindrical gear transmission, a conical gear transmission, a worm transmission, a gear train, a chain transmission, a strap transmission, a screw transmission, and so on. The transmission component of the present invention includes a gear, a cam lever, an assembly of gear and strap or an assembly of gear and chain, and so on. A pair of parallel transmission shaft brackets  11  are set in underrmentioned embodiments, holes  333  are defined on the transmission shaft brackets  11  respectively, and sheathes  332  are set in the holes  333  respectively. The transmission shaft  13  is set into the holes  333  of the transmission shaft brackets  11  and may turn therein, the ends of the transmission shaft  13  are tightened by the sheathes  332 , the transmission shaft  13  is perpendicular to the supporting panel of the transmission shaft brackets  11 . Second transmission components are set near to the ends of the transmission shaft  13  (or other positions of the transmission shaft  13 ) inside of the transmission shaft brackets  11  respectively, and the second transmission component may be any known type. A gear  131  is adopted in underrmentioned embodiments to transfer the power from the driving transmission frame  100  to a punching tool. Which may be understood is that the transmission shaft brackets  11  may be a unitary frame having two parallel supporting panels, thus, the transmission shaft  13  may be set in the holes of the two parallel supporting panels. 
         [0032]    Referring to  FIG. 1 , the gear transmission component of the embodiment includes a driving gear  120  and a driven gear  130 , the driving gear  120  and the driven gear  130  joggle with, each other and are all cylindrical gears, and the driven gear  130  is one third gear. One end of the transmission shaft  13  penetrates one hole  333  of the transmission shaft brackets  11  and extends from the inside to the outside of the transmission shaft brackets  11 , the driven gear  130  is set on the other end of the transmission shaft  13 , and the motor  12  is set inside the transmission shaft brackets  11  and drives the driving gear  120  set outside the transmission shaft brackets  11 . The driving transmission principle of the embodiment is that the motor  12  is set on the transmission shaft brackets  11  to drive the driving gear  120 , the driving gear  120  drives the driven gear  130 , and the driven gear  130  drives the transmission shaft  13  synchronously to make the transmission shaft  13  turn circularly, thus, the transmission function of electric single-driving is accomplished. 
         [0033]    Which may be understood is that the driven gear  130  is not be limited at the one third gear, angle at the gear&#39;s circumference is satisfied so long as one time trip of the driven gear  130  accomplishes one time punch. 
         [0034]    Differ from  FIG. 1 , a driven gear  230  of the second embodiment shown in  FIG. 2  is an all gear, the structure and the work principle of the second embodiment is the same as that of the first embodiment. 
         [0035]    Differ from  FIG. 1 , the position of the motor  12  and the transmission component relative to the transmission shaft brackets  11  of the third embodiment shown in  FIG. 3  is exchanged, that is to say, the motor  12  is set outside the transmission shaft bracket  11  and the driving gear  120  and the driven gear  130  are set inside the transmission shaft bracket  11 . 
         [0036]    Differ from  FIG. 3 , the driven gear  230  of the fourth embodiment shown in  FIG. 4  is an all gear. 
         [0037]    Please referring to  FIG. 5  and  FIG. 6 , a motor bracket  50  is added in the driving transmission frame  100 . The motor  12  is set on the motor bracket  50 . In  FIG. 5 , the motor bracket  50  lies outside one of the transmission shaft brackets  11 , the motor  12  is fixed on the motor bracket  50 , the driving gear  120  is set between the motor bracket  50  and the transmission shaft bracket  11 , the driven gear  130  is fixed on the transmission shaft  13  between the motor bracket  50  and the transmission shaft bracket  11 , the driving gear  120  joggles with the driven gear  130 , and the driving gear  120  is a cylindrical gear and the driven gear  130  is but not limited to one third gear. The ends of the transmission shaft  13  are fixed by the gear sheath  131 . The driving transmission principle of the embodiment is: the motor  12  is fixed on the motor bracket  50 , the motor  12  drives the driving gear  120 , the driving gear  120  drives the driven gear  130 , and the driven gear  130  drives the transmission shaft  13  synchronously to make the transmission shaft  13  turn circularly, thus, the transmission function of electric single-driving is accomplished. 
         [0038]    Differ from  FIG. 5 , the driven gear  230  of the sixth embodiment shown in  FIG. 6  is an all gear. 
         [0039]    Please referring to  FIG. 7 , the transmission component of the seventh embodiment is a cam lever frame, an active component of the cam lever frame is a cam  123 , and a passive component of the can lever frame is a lever  70 . The lever  70  is fixed on the end of the transmission shaft  13  which extends outside the transmission shaft bracket  11 . The cam  123  is set outside the transmission shaft bracket  11  and a tip  80  is set on the cam  123 . A slot  701  is set on the lever  70 . The tip  80  may glide in the slot  701 . The motor  12  is fixed inside the transmission shaft bracket  11  and drives the cam  123 , and the tip  80  of the cam  123  glides in the slot  701  and drives the lever  70  to turn synchronously to make the transmission shaft  13  turn circularly, thus, the transmission function of electric single-driving is accomplished. 
         [0040]    Differ from  FIG. 7 , the position of the motor  12  and the transmission component relative to the transmission shaft bracket  11  of the eighth embodiment shown in  FIG. 8  is exchanged, that is to say, the motor  12  is set outside the transmission shaft bracket  11 , the cam  123  is set inside the transmission shaft bracket  11 , and the lever  70  is set on the transmission shaft  13  inside the transmission shaft bracket  11 . 
         [0041]    Differ from the  FIG. 7 , a motor bracket  50  is added in the driving transmission frame  100  of the ninth embodiment shown in  FIG. 9 . The motor bracket  50  is set between the transmission shaft bracket  11  and the motor  12 , the motor  12  is set on the motor bracket  50 , and the cam  123  is set between the motor bracket  50  and the transmission shaft b racket  11 . The lever  70  is set on the transmission shaft  13  near to the outside of the transmission shaft bracket  11 . The cam  123  is overlapped with the slot  701  and the tip  80  of the cam  123  may glide in the slot  701 . The motor  12  drives the cam  123  to turn, the tip  80  drives the lever  70  to turn, and the lever  70  drives the transmission shaft  13  to turn. 
         [0042]    Please referring to  FIG. 10 , the transmission component of the tenth embodiment is a cam lever frame, an active component of the cam lever frame is the cam  123 , and a passive component of it is a lever  70 . The cam  123  is set outside the transmission shaft bracket  11 , and the tip  80  is set on the cam  123 . A replacement block  90  is set on the lever  70 , the lever  70  and the replacement block  90  are fixed on the end of the transmission shaft  13  which extends outside the transmission shaft bracket  11 . The replacement block  90  and the tip  80  support each other. The motor  12  is fixed inside the transmission shaft bracket  11  to drive the cam  123 , the cam  123  drives the lever  70  and the replacement block  90 , and the lever  70  and the replacement block  90  drives the transmission shaft  13  to make the transmission shaft  13  turn circularly, thus, the transmission function of electric single-driving is accomplished. 
         [0043]    Differ from  FIG. 10 , the position of the motor  12  and the transmission component relative to the transmission shaft bracket  11  of the eleventh embodiment shown in  FIG. 11  is exchanged, that is to say, the motor  12  is set outside the transmission shaft bracket  11 , the cam  123  is set inside the transmission shaft bracket  11 , and the lever  70  and the replacement block  90  are set on the transmission shaft  13  inside the transmission shaft bracket  11 . 
         [0044]    Differ from  FIG. 10 , a motor bracket  50  is added in the driving transmission frame  100  of the twelfth embodiment shown in  FIG. 12 . The motor bracket  50  is set between the transmission shaft bracket  11  and the motor  12 , the motor  12  is set on the motor bracket  50 , the cam  123  is set between the motor bracket  50  and the transmission shaft bracket  11 , and the lever  70  and the replacement block  90  are set on the transmission shaft  13  near to the outside of the transmission shaft bracket  11 . 
         [0045]    Please referring to  FIG. 13 , the motor  12  of the single-driving transmission frame  100  is set inside the transmission shaft bracket  11 , the transmission component of the thirteenth embodiment is a cam lever frame, an active component of the cam lever frame is the driving gear  120 , and a passive component of the cam lever frame is the driven gear  130 . The driving gear  120  is a cylindrical gear, and the driven gear  130  is a cylindrical gear and set on the end of the transmission shaft  13  which extends outside the transmission shaft bracket  11 . A connecting component  132  connects the driving gear  120  with the driven gear  130 ; and the connecting component  132  may be a strap or a chain. The motor  12  drives the driving gear  120 , the driving gear  120  drives the driven gear  130  via the connecting component  132 , and the driven gear  130  drives the transmission shaft  13  to make the transmission shaft  13  turn circularly, thus, the transmission function of electric single-driving is accomplished. 
         [0046]    Differ from  FIG. 13 , the position of the motor  12  and the transmission component relative to the transmission shaft bracket  11  of the fourteenth embodiment shown in  FIG. 14  is exchanged, that is to say, the motor  12  is set outside the transmission shaft bracket  11 , the driving gear  120  is set inside the transmission shaft bracket  11  and is driven by the motor  12 , the driven gear  130  is set on the transmission shaft  13  inside the transmission shaft bracket  11 , and the transferring power between the driving gear  120  and the driven gear  130  is transferred via the connecting component  132 . 
         [0047]    Differ from  FIG. 14 , a motor bracket  50  is added in the driving transmission frame  100  of the fifteenth embodiment shown in  FIG. 15 . The motor bracket  50  is set between the transmission shaft bracket  11  and the motor  12 , the motor  12  is set on the motor bracket  50 , the driving gear  120  and the driven gear  130  are set between the motor bracket  50  and the transmission shaft bracket  11 , and the connecting component  132  connects the driving gear  120  with the driven gear  130 . 
         [0048]    which may be understood is that the electric punch device further includes a group of reamers and a driving board in above-mentioned embodiments, wherein the reamers are set on the driving board and the driving board cooperates with the transmission shaft  13 , and the driving board drives the reamers to move up and down to punch basing on the driving of the transmission shaft  13 . 
         [0049]    What are disclosed above only are the preferred embodiments of the present invention, and therefore it is intended that the present invention not be limited to the particular embodiments disclosed. So it will be understood by those skilled in the art that various equivalent changes may be made depending on the specification and the drawings of present invention without departing from the scope of the present invention.