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CN-224225131-U - Frame structure of foldable baby carriage

CN224225131UCN 224225131 UCN224225131 UCN 224225131UCN-224225131-U

Abstract

The utility model relates to the technical field of strollers, and discloses a frame structure of a foldable strollers, which is provided by the utility model, comprises a front leg, a rear leg, a connecting part, a rear connecting rod, a backrest rod, a front connecting rod, a grab rail, a locking structure and the like. In the folding process, the backrest rod, the front connecting rod and the rear connecting rod are in the process of approaching from the rear to the rear legs, and the front legs are in the process of approaching from the front to the rear legs. Therefore, after the locking of the locking structure is released, the grab rail is lifted up, so that the rear wheel is separated from the ground, the front wheel contacts the ground, the front wheel and the upper end of the grab rail are in an up-down state, and at the moment, the whole frame structure can be folded and stored by pressing downwards. The whole folding and storage process can be realized by one hand, a certain part does not need to be folded first, and a grab rail or related structures do not need to be dismantled, so that the problems that the structure of a folding baby carriage is complex, the folding process is not simple and convenient enough, and the operation difficulty is high for a user holding a baby in the prior art are solved.

Inventors

  • ZHANG LEI
  • YI ZEHUA
  • ZHANG HAOJIE

Assignees

  • 安徽酷豆丁科技发展股份有限公司

Dates

Publication Date
20260512
Application Date
20250526

Claims (10)

  1. 1. A frame structure of a foldable stroller, comprising: A front leg; A first transfer position is arranged between the upper end and the lower end of the rear leg; The connecting part is fixedly arranged at the upper end of the rear leg, and the upper end of the front leg is hinged with the connecting part; the lower end of the rear connecting rod is hinged with the rear leg at a first transfer position; the lower end of the backrest rod is hinged with the upper end of the rear connecting rod, and a second switching position is formed on the backrest rod; The lower end of the front connecting rod is hinged with the connecting part, and the upper end of the front connecting rod is hinged with the backrest rod at a second switching position; The lower end of the grab bar is hinged with the middle part of the rear connecting rod, a third switching position is arranged on the grab bar, and the grab bar and the front connecting rod are hinged at the third switching position; and the locking structure is used for locking and unlocking the hinging action of the upper end of the rear connecting rod and the lower end of the backrest rod.
  2. 2. The frame structure of a foldable stroller of claim 1, wherein a first support bar is fixedly disposed between the front legs, and a pedal structure is fixedly disposed on the first support bar.
  3. 3. The frame structure of a foldable stroller of claim 2, wherein the front legs are provided with front wheels at their lower ends, and wherein the front wheels are of a universal wheel structure.
  4. 4. A frame structure of a foldable stroller according to claim 3, wherein a second support bar is fixedly provided between the two rear legs.
  5. 5. The frame structure of a foldable stroller of claim 4, wherein the lower ends of the rear legs are provided with rear wheels, and the rear wheels are of a universal wheel structure or a directional wheel structure.
  6. 6. The frame structure of a collapsible pushchair of claim 5, wherein the rear wheel is provided with a braking structure.
  7. 7. The frame structure of a collapsible pushchair of claim 6, wherein the length dimension of the front legs is less than the length dimension of the rear legs.
  8. 8. The frame structure of a collapsible pushchair of claim 7, wherein the distance between the front wheels is less than the distance between the rear wheels.
  9. 9. The frame structure of a foldable stroller of claim 1, further comprising a seat structure, wherein one end of the seat structure is hinged to the rear link, and the connection point is located between the lower end of the grab rail and the lower end of the rear link, and the other end of the seat structure is hinged to the connection portion through the link.
  10. 10. The frame structure of a collapsible pushchair of claim 1, further comprising a barrier structure, said barrier structure being hinged to said second transfer location with said rear link.

Description

Frame structure of foldable baby carriage Technical Field The utility model relates to the technical field of strollers, in particular to a frame structure of a foldable strollers. Background The baby carriage (also called baby carriage or baby carrier) is a portable transportation tool specially designed for infants, and is convenient for parents or caregivers to use when taking babies out. There are many styles of strollers, including single and double strollers, including single and multi-wheeled strollers, including pushchairs and flatstrollers, and the like. The consumer can select different types of strollers according to his own preference and needs. In order to facilitate carrying and storage, foldable strollers have been designed. The design core of a folding stroller is portability and functionality. The folded baby carriage has small volume after being folded, and can be put into a car trunk for boarding (partially meeting the size requirement of an airline company). A chinese patent publication No. CN105691435B discloses a foldable stroller including a front link mechanism, a rear link mechanism, a seat portion, a seat cushion bar assembly, a backrest portion, and a backrest bar assembly. The front linkage includes a front leg having an upper end and a lower end to which the front wheel assembly is mounted. The rear link mechanism includes a rear leg having an upper end and a lower end to which the rear wheel assembly is mounted. The seat post assembly is for supporting the seat portion. The backrest bar assembly is used for supporting the backrest portion. The foldable stroller is moved from its unfolded state to its folded state by the lower ends of the front legs and the lower ends of the rear legs moving toward each other so that the lower ends of the front legs and the lower ends of the rear legs approach each other until the distance between the lower ends of the front legs and the lower ends of the rear legs reaches a minimum at which time the front wheel assemblies of the front legs and the rear wheel assemblies of the rear legs come together into contact or nearly into contact with each other. The foldable baby carriage has small whole vehicle volume after being folded, is convenient to carry and can better avoid contamination. This perambulator can fold and accomodate, and the looks is folded back and is folded preceding volume and reduce greatly, portable, but its structure is comparatively complicated, and folding process needs to fold back part earlier and accomodate, then accomplishes the folding of whole frame, and whole folding accomodate process is simple and convenient inadequately, and the operation degree of difficulty is great to the user of holding the baby. Disclosure of utility model The technical problem solved by the utility model is that the existing folding baby carriage has a complex structure, the folding process is not simple and convenient enough, and the operation difficulty is high for a user holding a baby. The aim of the utility model can be achieved by the following technical scheme: A frame structure of a foldable stroller, comprising: A front leg; A first transfer position is arranged between the upper end and the lower end of the rear leg; The connecting part is fixedly arranged at the upper end of the rear leg, and the upper end of the front leg is hinged with the connecting part; the lower end of the rear connecting rod is hinged with the rear leg at a first transfer position; the lower end of the backrest rod is hinged with the upper end of the rear connecting rod, and a second switching position is formed on the backrest rod; The lower end of the front connecting rod is hinged with the connecting part, and the upper end of the front connecting rod is hinged with the backrest rod at a second switching position; The lower end of the grab bar is hinged with the middle part of the rear connecting rod, a third switching position is arranged on the grab bar, and the grab bar and the front connecting rod are hinged at the third switching position; and the locking structure is used for locking and unlocking the hinging action of the upper end of the rear connecting rod and the lower end of the backrest rod. In one scheme of the utility model, a first supporting rod is fixedly arranged between two front legs, and a pedal structure is fixedly arranged on the first supporting rod. In one scheme of the utility model, the lower ends of the front legs are provided with front wheels, and the front wheels are of universal wheel structures. In one scheme of the utility model, a second supporting rod is fixedly arranged between the two rear legs. In one scheme of the utility model, the lower ends of the rear legs are provided with rear wheels which are of universal wheel structures or directional wheel structures. In one aspect of the utility model, the rear wheel is provided with a brake structure. In one aspect of the utility model, the length dimension of the front l