Detachable paddle

Abstract

Disclosed is a detachable paddle comprising a main paddle rod, a first detachable paddle rod, a second detachable paddle rod, a paddle blade part and a paddle handle part, wherein the main paddle rod is connected to the first detachable paddle rod through a first connecting part, and the main paddle rod is connected to the second detachable paddle rod through a second connecting part. The main paddle rod is a hollow rod with a water drop-shaped cross section and a certain wall thickness, and the first and second detachable paddle rods are hollow rods with the same cross section shape as the main paddle rod and a certain wall thickness; and the first connecting part comprises a closed lantern ring for connecting the main paddle rod, a fastening device for fastening the first detachable paddle rod, and a limiting device for limiting the first detachable paddle rod.

1 . A detachable paddle, comprising a main paddle rod ( 10 ), a first detachable paddle rod ( 20 ), a second detachable paddle rod ( 30 ), a paddle blade part ( 40 ) and a paddle handle part ( 50 ), wherein the main paddle rod ( 10 ) is connected to the first detachable paddle rod ( 20 ) through a first connecting part ( 60 ), and the main paddle rod ( 10 ) is connected to the second detachable paddle rod ( 30 ) through a second connecting part ( 70 ), wherein:
 the main paddle rod ( 10 ) is a hollow rod with a water drop-shaped cross section and a certain wall thickness, and the first detachable paddle rod ( 20 ) and the second detachable paddle rod ( 30 ) are hollow rods with the same cross section as the main paddle rod ( 10 ) and a certain wall thickness; radial circumferences of outer walls of the first detachable paddle rod ( 20 ) and the second detachable paddle rod ( 30 ) are slightly smaller than that of an inner wall of the main paddle rod ( 10 ), and the first detachable paddle rod ( 20 ) and the second detachable paddle rod ( 30 ) are able to enter the main paddle rod ( 10 ) and fit the inner wall of the main paddle rod ( 10 ) to move axially along the main paddle rod ( 10 );   the first connecting part ( 60 ) comprises a closed lantern ring ( 61 ) for connecting the main paddle rod ( 10 ), a fastening device for fastening the first detachable paddle rod ( 20 ), and a limiting device for limiting the first detachable paddle rod ( 20 ); and   the closed lantern ring ( 61 ) is fixedly connected to an outer edge of one end that is of the main paddle rod ( 10 ) and that faces the first detachable paddle rod ( 20 ).   
     
     
         2 . The detachable paddle according to  claim 1 , wherein:
 the fastening device comprises a non-closed lantern ring ( 62 ), and at least a part of the non-closed lantern ring ( 62 ) is connected to the closed lantern ring ( 61 ) into a whole.   
     
     
         3 . The detachable paddle according to  claim 2 , wherein:
 the fastening device comprises a first protruding part ( 621 ) and a second protruding part ( 622 ) that are positioned at two sides of a slit of the non-closed lantern ring ( 62 ), and the first protruding part ( 621 ) and the second protruding part ( 622 ) are provided with a screw hole for a screw rod to pass through.   
     
     
         4 . The detachable paddle according to  claim 3 , wherein:
 the first connecting part ( 60 ) comprises a fastening and limiting piece ( 63 ); and   the fastening device further comprises a first cam-shaped bulge ( 631 ) and a second cam-shaped bulge ( 632 ) that are provided on one end of the fastening and limiting piece ( 63 ) at an interval, the interval between the first cam-shaped bulge ( 631 ) and the second cam-shaped bulge ( 632 ) is configured to accommodate a screw head of a fastening screw ( 64 ), and the first cam-shaped bulge ( 631 ), the second cam-shaped bulge ( 632 ), and the screw head of the fastening screw ( 64 ) are all provided with a rotating shaft hole for a rotating shaft to pass through.   
     
     
         5 . The detachable paddle according to  claim 4 , wherein:
 a groove ( 634 ) is provided at an edge of one end that is of the fastening and limiting piece ( 63 ) and that is far away from the first cam-shaped bulge ( 631 ) and the second cam-shaped bulge ( 632 ).   
     
     
         6 . The detachable paddle according to  claim 1 , wherein:
 the first connecting part ( 60 ) comprises the fastening and limiting piece ( 63 ), and the fastening and limiting piece ( 63 ) comprises the first cam-shaped bulge ( 631 ) and the second cam-shaped bulge ( 632 ); and   the limiting device comprises a first limiting block ( 633 ) positioned on the end that is of the fastening and limiting piece ( 63 ) and that is far away from the first cam-shaped bulge ( 631 ) and the second cam-shaped bulge ( 632 ).   
     
     
         7 . The detachable paddle according to  claim 6 , wherein:
 the limiting device further comprises a first limiting hole ( 21 ) that is positioned on one end that is of the first detachable paddle rod ( 20 ) and that faces the main paddle rod ( 10 ), and a second limiting hole ( 623 ) that is positioned on the non-closed lantern ring ( 62 ); and   the first limiting hole ( 21 ) and the second limiting hole ( 623 ) have the same opening shapes, and the first limiting block ( 633 ) is configured to match the opening shapes of the first limiting hole ( 21 ) and the second limiting hole ( 623 ) so as to enter and be firmly clamped into the first limiting hole ( 21 ) and the second limiting hole ( 623 ).   
     
     
         8 . The detachable paddle according to any one of  claims 1  to  7 , wherein:
 third limiting holes ( 22 ) are provided on one end that is of the first detachable paddle rod ( 20 ) and that faces the paddle blade part ( 40 ), one end that is of the paddle blade part ( 40 ) and that faces the first detachable paddle rod ( 20 ) has the same cross section shape as that of the first detachable paddle rod ( 20 ), a radial circumference of an outer wall of the end is slightly smaller than that of an inner wall of the first detachable paddle rod ( 20 ), first elastic limiting pieces ( 42 ) matched with the third limiting holes ( 22 ) in shape are provided on the end that is of the paddle blade part ( 40 ) and that faces the first detachable paddle rod ( 20 ), and the first elastic limiting pieces ( 42 ) are able to be elastically pressed into the paddle blade part ( 40 ); and 
 fourth limiting holes ( 32 ) are provided on one end that is of the second detachable paddle rod ( 30 ) and that faces the paddle handle part ( 50 ), one end that is of the paddle handle part ( 50 ) and that faces the second detachable paddle rod ( 30 ) has the same cross section shape as that of the second detachable paddle rod ( 30 ), a radial circumference of an outer wall of the end is slightly smaller than that of an inner wall of the second detachable paddle rod ( 30 ), second elastic limiting pieces ( 52 ) matched with the fourth limiting holes ( 32 ) in shape are provided on the end that is of the paddle handle part ( 50 ) and that faces the second detachable paddle rod ( 30 ), and the second elastic limiting pieces ( 52 ) are able to be elastically pressed into the paddle handle part ( 50 ). 
 
     
     
         9 . The detachable paddle according to  claim 8 , wherein:
 the third limiting holes ( 22 ) are symmetrically provided on two sides of the first detachable paddle rod ( 20 ) with the smallest radial curvature, and have the same opening shapes, and the first elastic limiting pieces ( 42 ) are symmetrically provided on two sides of the paddle blade part ( 40 ) with the smallest radial curvature; and   the fourth limiting holes ( 32 ) are symmetrically provided on two sides of the second detachable paddle rod ( 30 ) with the smallest radial curvature, and have the same opening shapes, and the second elastic limiting pieces ( 52 ) are symmetrically provided on two sides of the paddle handle part ( 50 ) with the smallest radial curvature.   
     
     
         10 . The detachable paddle according to  claim 9 , wherein:
 the inner walls of the first detachable paddle rod ( 20 ) and the second detachable paddle rod ( 30 ) have the same radial circumferences, and the third limiting holes ( 22 ) and the fourth limiting holes ( 32 ) have the same opening shapes.