A large capacity carry-on luggage

Abstract

The utility model relates to a luggage case technical field especially, it relates to a big capacity boarding luggage case, including box and install the support base of box bottom, support base is provided with support wheel module, the box is integrative injection molding structure, and the side opening is installed with the bearing frame, and the side opening is hinged with the side open door, and the support wheel module includes the steering module, the bearing frame can protect the surrounding of the side opening, so that the side opening is not easy to deform, and the box of integrative injection molding is cooperated, can supply people to ride, and the overall bearing capacity of the box is stronger, provides stable support force, when steering, because the overall width and length of the steering groove are all greater than the volume of the steering wheel, thus, more space is reserved for the horizontal deflection of the steering wheel, and the steering of the luggage case is controlled, when controlling the steering, the pull rod module rotates as a whole, can drive the driving rod in the pull rod cavity to rotate, and the driving rod rotation drives the steering arm to swing transversely in the steering groove, and the horizontal rotation of the steering arm is better controlled.

Claims

1. A large-capacity carry-on suitcase, comprising a suitcase body and a support base installed at the bottom of the suitcase body, the support base being equipped with a support wheel module, characterized in that: The housing is an integral injection-molded structure with a load-bearing frame installed on the side opening. The load-bearing frame is hinged to a side door, and the support wheel module includes a steering module. The steering module includes a steering groove formed on the bottom of the support base, the steering groove is provided with a horizontally arranged steering arm, and a rotatable steering wheel is installed at both ends of the steering arm. The housing is equipped with a telescopic pull rod module, which includes a drive rod located inside the housing. The housing is formed with a pull rod cavity for the drive rod to rotate. The bottom of the drive rod is connected to the steering arm in a transmission manner. The drive rod rotates to drive the steering arm to swing laterally in the steering groove.

2. The large-capacity carry-on suitcase according to claim 1, characterized in that: The pull rod module also includes a first pull rod and a second pull rod sleeved inside the first pull rod. The second pull rod can move along the axial direction of the first pull rod. The bottom of the second pull rod is connected to the drive rod for transmission. The second pull rod rotates to drive the drive rod to rotate synchronously.

3. A large-capacity carry-on suitcase according to claim 2, characterized in that: A steering sleeve is installed at the bottom of the drive rod, and an upright steering shaft is installed in the middle of the steering arm. The top of the steering shaft is connected to the steering sleeve, and the steering shaft is rotatably installed at the bottom of the support base.

4. A large-capacity carry-on suitcase according to claim 3, characterized in that: The drive rod is formed with a first bottom hollow hole. The drive rod is movably fitted with a bottom movable rod through the first bottom hollow hole. The bottom movable rod can move axially along the first bottom hollow hole. The top of the bottom movable rod is connected to the second pull rod for transmission.

5. A large-capacity carry-on suitcase according to claim 4, characterized in that: The second pull rod is connected to the bottom movable rod by an intermediate connecting rod. The second pull rod is formed with a top hollow hole, and the bottom movable rod is formed with a second bottom hollow hole. The intermediate connecting rod can move axially along both the top hollow hole and the second bottom hollow hole at the same time.

6. A large-capacity carry-on suitcase according to claim 5, characterized in that: A first slider structure is provided between the bottom movable rod and the drive rod, a second sliding structure is provided between the bottom movable rod and the middle connecting rod, and a third slider structure is provided between the middle connecting rod and the second pull rod.

7. A large-capacity carry-on suitcase according to claim 6, characterized in that: The inner diameter of the first pull rod is larger than the outer diameter of the drive rod.

8. A large-capacity carry-on suitcase according to claim 3, characterized in that: The steering groove has a raised steering mounting seat formed in the middle, and the steering mounting seat has a steering drive hole for mounting the steering shaft. The steering drive hole is provided with a rolling support.

9. A large-capacity carry-on suitcase according to claim 8, characterized in that: The steering drive hole has a concave top bearing groove at the top and a concave bottom bearing groove at the bottom. The rolling support includes a top flat rolling bearing installed in the top bearing groove and a bottom flat rolling bearing installed in the bottom bearing groove. The steering shaft passes between the top flat rolling bearing and the bottom flat rolling bearing.

10. A large-capacity carry-on suitcase according to claim 9, characterized in that: The steering arm has a raised connecting protrusion at its middle end, and the connecting protrusion has a recessed connecting hole for mounting the steering shaft. The top of the connecting protrusion contacts the bottom flat rolling bearing.

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