Convenient-return book trolley for library

The invention discloses a convenient-return book trolley for library. the trolley includes a support bookshelf, the inner side of the supporting bookshelf is hollow, The inside of the supporting bookshelf is provided with an automatic lifting device, and the supporting bookshelf also comprises a foot pedal device, wherein the foot pedal device is arranged on one side of the supporting bookshelf, afixing hook is arranged on the supporting bookshelf, a penetration hole is arranged on the foot pedal device, and the foot pedal device can be stuck or deployed on the outside of the supporting bookshelf. The utility model discloses a convenient book returning vehicle for a library, which has the advantages that: the bottom plate of a book can be lifted and lowered in a linear proportion with theweight of a book by adopting a linear compression spring and a guide groove; the bottom plate of a book can be lifted and lowered with the weight of a book. The pedal device and the book returning vehicle are connected into o