Patent ID: 8448580

Claim:
A freight car bogie, comprising: two wheel sets; two side frames arranged at outer side of said wheel sets; and a bolster fixedly connected to center position of each of said two side frames, respectively, wherein the freight car bogie further comprises a K-shaped supporting device, said K-shaped supporting device passes through preset holes on two sides of an abdominal region of said bolster; a first upper end and a second upper end, as well as a first lower end and a second lower end of said K-shaped supporting device are elastically connected with said two side frames respectively; and said first upper end and second upper end, and said first lower end and second lower end are respectively symmetrical with respect to a centre line of said bolster, and wherein said K-shaped supporting device comprises a first connecting rod, a second connecting rod and a third connecting rod, wherein one end of said first connecting rod is said first upper end, one end of said second connecting rod is said first lower end, two ends of said third connecting rod are said second upper end and said second lower end respectively, and the other end of said first connecting rod and the other end of said second connecting rod are elastically connected with a middle part of the third connecting rod, respectively.