Travel bed

A travel bed, having an unfolded state and a folded state, and comprising a bottom support, an upper surrounding frame, a plurality of stand rods provided between the bottom support and the upper surrounding frame, and fixing bases provided at lower portions of the plurality of stand rods respectively, the bottom support comprising a plurality of bottom rods and a connecting base rotatably connected with ends of the plurality of bottom rods, the other ends of the bottom rods being connected with the fixing bases, wherein,

• the upper surrounding frame comprises a first surrounding rod and a second surrounding rod which are rotatably connected with a first connector respectively, and an upper end of the upright rod is fixedly connected with the first connector;
• the first surrounding rod comprises a first connecting rod and a second connecting rod of which end portions are rotatably connected via a second connector, and the second surrounding rod comprises a third connecting rod and a fourth connecting rod of which end portions are rotatably connected via a third connector;
• the upper surrounding frame further comprises a first locking device for locking the first connecting rod and the second connecting rod to each other, and a second locking device for locking the third connecting rod and the fourth connecting rod to each other;
• the first locking device is provided on the second connector, the second locking device is provided on the third connector, and the first locking device and the second locking device are linked with each other via a hauling rope;
• during folding, when one of the first locking device and the second locking device is unlocked, the other locking device is unlocked simultaneously, the connecting base is driven to move upwardly by pressing the upper surrounding frame downwardly, and the upper surrounding frame, the stand rods and the bottom rods of the travel bed get close to one another;
• during the unfolding and folding of the travel bed, the stand rods move while keeping upright.