Connecting and fixing device for cart frame of pulling cart and flexible compartment and pulling cart

A connecting and fixing device for a cart frame of a pulling cart and a flexible compartment, comprising:

• an upper connecting seat,
• an edge portion,
• a pressing block, and
• a fixing structure, wherein:
• the cart frame comprises the upper connecting seat,
• the flexible compartment has the edge portion,
• the edge portion corresponds to the upper connecting seat and is disposed on the upper connecting seat,
• the edge portion has a thicker portion and an abutting portion facing inward and formed by the thicker portion,
• the pressing block comprises an upper through hole,
• the fixing structure comprises a fixing member,
• the pressing block is disposed on the edge portion,
• the fixing member passes through the upper through hole of the pressing block and the edge portion to be connected to the upper connecting seat,
• the fixing structure enables the pressing block and the upper connecting seat to be fixedly connected together, so that the edge portion is clamped by the pressing block and the upper connecting seat,
• a mating space is formed between the pressing block and the upper connecting seat,
• the thicker portion of the edge portion is located within the mating space, and
• the abutting portion is configured to abut the fixing structure or a limiting portion of the mating space facing outward.