Movable side wall and opening/closing mechanism for railroad boxcars

A movable side wall and opening/closing mechanism for railway boxcars, comprising a side wall assembly (1), an end portion opening/closing mechanism (2), a pivot rod assembly (3), an upper transmission shaft assembly (5), a lower transmission shaft assembly (6), an upper track assembly (7) and a lower track assembly (8), wherein

• the side wall assembly (1) comprises a side wall (1.1), an armrest (1.2), an upper abutment assembly (1.3), a lower abutment assembly (1.4) and a pivot rod locking head (1.5), the upper abutment assembly (1.3) and the lower abutment assembly (1.4) are respectively arranged at upper and lower ends of the side wall (1.1), the armrest (1.2) is arranged at the middle of the side wall (1.1), and the pivot rod locking head (1.5) is arranged at a lower end of the armrest (1.2);
• the upper abutment assembly (1.3) comprises an upper abutment (1.3.1), an upper roller (1.3.2) and a slide rail (1.3.3), and the upper roller (1.3.2) is connected with the upper abutment (1.3.1) through a round pin and is used for supporting and sliding the side wall (1.1);
• the lower abutment assembly (1.4) comprises a lower abutment (1.4.1) and a lower roller (1.4.2), and the lower roller (1.4.2) is connected with the lower abutment (1.4.1) through a round pin and is used for supporting and sliding the side wall (1.1);
• the end portion opening/closing mechanism (2) comprises a handle assembly (2.1), a first connecting rod (2.2), a second connecting rod (2.3), a third connecting rod (2.4), a connecting plate (2.5) and a gravity block assembly (2.6), the handle assembly (2.1) is fixed to a end wall of a car body and can freely rotate up and down;
• one end of the first connecting rod (2.2) is spherically hinged with a lower crank (6.2) of the lower transmission shaft assembly (6), and the other end of the first connecting rod is spherically hinged with the handle assembly (2.1);
• the connecting plate (2.5) is triangular, one end of the second connecting rod (2.3) is spherically hinged with the handle assembly (2.1), and the other end of the second connecting rod is spherically hinged with one side of the connecting plate (2.5);
• one end of the third connecting rod (2.4) is cylindrically hinged with the other side of the connecting plate (2.5), and the other end of the third connecting rod is cylindrically hinged with an upper crank (5.2) of the upper transmission shaft assembly (5);
• the rest side of the connecting plate (2.5) is hinged with the end wall of the car body;
• and the gravity block assembly (2.6) is fixed on the end wall of the car body, and can freely rotate up and down, and is used for providing a locking role for the opening and closing states of the handle assembly (2.1);
• the pivot rod assembly (3) comprises a pivot rod (3.1), a abutment (3.2), a locking head (3.3) and a handle (3.4), and the locking head (3.3) and the handle (3.4) are fixedly with the pivot rod (3.1);
• the pivot rod (3.1) is fixed to a corner column of the end wall through the abutment (3.2), and the locking head (3.3) and the pivot rod locking head (1.5) can be fastened to lock the side wall assembly (1);
• the upper transmission shaft assembly (5) comprises an upper transmission shaft (5.1), an upper crank (5.2), an upper transmission shaft shifting fork (5.3) and an upper bearing support (5.4), the upper bearing support (5.4) is fixedly with a top plate of the car body, the upper crank (5.2) and the upper transmission shaft shifting fork (5.3) are fixed on the upper transmission shaft (5.1), the upper transmission shaft shifting fork (5.3) is matched with the upper roller (1.3.2), and the side wall assembly (1) is supported and shifted by the upper transmission shaft (5.1);
• the lower transmission shaft assembly (6) comprises a lower transmission shaft (6.1), a lower crank (6.2), a lower transmission shaft shifting wheel (6.3), a lower bearing support (6.4) and a pre-tightening spring device (6.5), and the lower transmission shaft assembly (6) is fixedly with a lower side beam of the car body through the lower bearing support (6.4);
• the lower crank (6.2) and the lower transmission shaft shifting wheel (6.3) are fixed to the lower transmission shaft (6.1), the lower transmission shaft shifting wheel (6.3) is matched with the lower abutment assembly (1.4), and supports and shifts the side wall assembly (1) through the lower transmission shaft (6.1);
• and the pre-tightening spring device (6.5) is connected with the lower transmission shaft (6.1) through a spring, and when the side wall assembly (1) is opening or closing, a rotating torque of the lower transmission shaft (6.1) can be balanced;
• the upper track assembly (7) comprises an upper track (7.1) and an upper hanging seat (7.2), the upper track (7.1) is fixed to a side plate of the top of the car body through the upper hanging seat (7.2), a first notch is defined on the upper track (7.1) at the upper transmission shaft shifting fork (5.3), and the side wall assembly (1) sliding to the other side is supported at the first notch by the slide rail (1.3.3) on the upper abutment assembly (1.3);
• the lower track assembly (8) comprises a lower track (8.1) and a lower hanging seat (8.2), the lower track (8.1) is fixed to a side face of a chassis side beam through the lower hanging seat (8.2) and is used for supporting the opened side wall assembly (1), a second notch is defined on the lower track (8.1) at the lower transmission shaft shifting wheel (6.3), and the side wall assembly (1) is supported at the second notch by a protection rail of the lower track (8.1);
• and
• when the handle assembly (2.1) of the end portion opening/closing mechanism (2) is rotating, the upper transmission shaft (5.1) and the lower transmission shaft (6.1) can be driven to rotate by the connecting rods of the end portion opening/closing mechanism (2), so that the upper transmission shaft shifting fork (5.3) and the lower transmission shaft shifting wheel (6.3) drive the side wall assembly (1) to deviate as a whole, such that the upper roller (1.3.2) on the side wall assembly (1) drops onto the upper track (7.1), and the lower roller (1.4.2) on the side wall assembly (1) drops onto the lower track (8.1), and then the side wall assembly (1) can slide along the upper track (7.1) and the lower track (8.1).