Linkage mechanism acting in opposite directions synchronously

Abstract

A linkage mechanism acting in opposite directions synchronously disclosed in the invention comprises a driving part with an internal space and driven by an external power source; a first actuating part disposed in the internal space; and a second actuating part disposed in the internal space. When the first actuating part and the second actuating part are synchronously driven by the driving part, the first actuating part and the second actuating part are relatively displaced close to each other in opposite directions or away from each other in opposite directions. Thereby, with a linkage relationship between the first actuating part and the second actuating part that act in opposite directions, an efficacy of rapid displacement and actions can be achieved.

What is claimed is: 
     
         1 . A linkage mechanism acting in opposite directions synchronously comprising:
 a driving part with an internal space and driven by an external power source;   a first actuating part disposed in the internal space; and   a second actuating part disposed in the internal space, when the first actuating part and the second actuating part being synchronously driven by the driving part, the first actuating part and the second actuating part relatively displacing close to each other in opposite directions or away from each other in opposite directions.   
     
     
         2 . The linkage mechanism acting in opposite directions synchronously as claimed in  claim 1 , wherein the driving part has a rotating member, an interior of the rotating member forms the internal space, when the rotating member is driven by the power source to rotate, the first actuating part and the second actuating part are synchronously linked to act and displace. 
     
     
         3 . The linkage mechanism acting in opposite directions synchronously as claimed in  claim 2 , wherein the rotating member comprises:
 a first sleeve shaft driven by the power source to rotate; and   a second sleeve shaft inserted inside the first sleeve shaft and driven by the first sleeve shaft.   
     
     
         4 . The linkage mechanism acting in opposite directions synchronously as claimed in  claim 3 , wherein wall surfaces where the first sleeve shaft and the second sleeve shaft abut each other are respectively provided with protrusions and recesses that are complementary to each other in concave and convex manners. 
     
     
         5 . The linkage mechanism acting in opposite directions synchronously as claimed in  claim 3 , wherein the first actuating part comprises:
 a first rod slidably accommodated in the second sleeve shaft, and a hollow cavity communicating externally is provided along an axial direction of the first rod; and   a first connecting member provided between the first rod and the second sleeve shaft, and the first rod is capable of displacing relative to the second sleeve shaft.   
     
     
         6 . The linkage mechanism acting in opposite directions synchronously as claimed in  claim 5 , wherein the second actuating part comprises:
 a second rod, the second rod is partially or entirely slidably accommodated in the second sleeve shaft and the hollow cavity; and   a second connecting member disposed between the second rod and the second sleeve shaft, and the second rod is capable of displacing relative to the second sleeve shaft.   
     
     
         7 . The linkage mechanism acting in opposite directions synchronously as claimed in  claim 6 , wherein rod bodies of the first rod and the second rod respectively have screw threads disposed in opposite directions. 
     
     
         8 . The linkage mechanism acting in opposite directions synchronously as claimed in  claim 6 , further comprising:
 a first sleeve column with an appropriate length and connected to one end of the first rod;   a second sleeve column reciprocatively slidably disposed in the first sleeve column and connected with the first connecting member; and   a third sleeve column reciprocatively slidably disposed in the second sleeve column and connected with one end of the second rod away from the first rod.   
     
     
         9 . The linkage mechanism acting in opposite directions synchronously as claimed in  claim 8 , wherein the first connecting member comprises:
 a first seat disposed between the second sleeve column and the second sleeve shaft;   a first accommodating chamber recessed in one side of the first seat;   a first through hole penetrating the first seat and communicating with the first accommodating chamber for the first rod to insert into; and   a first bushing provided at one end of the second sleeve shaft, rotatably located in the first accommodating chamber, and screwed on the first rod, and capable of displacing linearly reciprocatively along an axial direction of the first rod.   
     
     
         10 . The linkage mechanism acting in opposite directions synchronously as claimed in  claim 9 , wherein the second connecting member comprises:
 a second seat disposed between the third sleeve column and the first rod;   a second accommodating chamber recessed in one side of the second seat for accommodating one end of the first rod;   a second through hole penetrating the second seat and communicating with the second accommodating chamber for the second rod to insert into; and   a second bushing disposed at another end of the second sleeve shaft away from the first bushing, and screwed on the second rod, and capable of displacing linearly reciprocatively along an axial direction of the second rod.