Mobile equipment and middle frame structure thereof

The invention provides a middle frame structure of mobile equipment. The middle frame structure is used for assisting in fixing devices on the mobile equipment, and comprises a middle frame body. The middle frame structure further comprises at least one bulge arranged on a first side of the middle frame body and used for enhancing the strength of the middle frame body, and line pressing slots arranged at the edges of the bulges and used for reducing tension of the portions of the middle frame body beyond the line pressing slots in the manufacturing process. The invention further provides a piece of mobile equipment comprising a front frame, a middle frame structure and a back frame which are connected in sequence, and a plurality of devices arranged between the front frame and the back frame, wherein the middle frame structure is used for assisting in fixing the devices. The production cost is reduced greatly, the weight of the mobile equipment is reduced, the size of the machine body is reduced, the mechanical strength of the middle frame structure is enhanced, and the distortion resistance of the middle frame structure is increased.