Umbrella stroller folding device related with front handrail

Abstract

An umbrella stroller folding device related with a front handrail includes symmetrical structures arranged on the left side and the right side of an umbrella stroller. A stroller folding device on each side comprises an upper large joint, a lower large joint and a handrail seat, and further comprises a rotating seat, two pushing pins, an angular locking piece, a compression spring and the like. The umbrella stroller can be completely unfolded by sequentially lifting a handle rod and the front handrail and can be folded by pressing the handle rod frontward against a front foot pipe. A plurality of structure elements of the umbrella stroller folding device are arranged in a rivet connection body of a large joint rotating head and a handrail seat rotating head, so that the umbrella stroller folding device achieves good unification of function, appearance, reliability and operability.

Description

technical field [0001] The invention relates to the field of strollers, that is, an umbrella stroller folding device related to a front armrest. Background technique [0002] When the baby umbrella car is unfolded and used, the handle bar and the front leg tube are stably kept in the same line, and this line state is locked by the relevant mechanism on the rear side of the umbrella car; if the operator unlocks the relevant mechanism, it will be locked through the lower end of the handle At the composite point of the upper large joint of the front leg tube and the lower large joint at the upper end of the front leg tube, the handle bar is folded relative to the front leg tube to realize the folding of the umbrella bike. Among them: the pipe holding section of the upper large joint is used for riveting after the lower section of the handle bar is inserted, the pipe holding section of the lower large joint is used for riveting after the upper section of the front leg pipe is in...

AI Technical Summary

Problems solved by technology

[0004] At present, most of the front handrails of infant umbrella cars in the market are of the traditional fixed type. They need to be dismantled before the car is closed. Disassembly is not allowed, so steel supports are designed correspondingly to ensure reliability, and the combined parts at the joints lack an inherent unity; whether the third type of front armrest is disassembled or not disassembled will not affect the car collection, but it does not Restrict the upward rotation of the vehicle body. If the front armrest rotates upward in an accident, it may pinch or injure the infant; the fourth type of front armrest is more advanced, and uses the large joint at the lower end of the handle bar and the large joint at the upper end of the front leg tube to clamp the front armrest (armrest seat ) not only can keep the front armrest level when the umbrella car is unfolded, but also does not affect the automatic folding of the umbrella car, but keep the handle bar and front leg tube always in the same line with the front armrest to bear the pressure of infants and young children from time to time It is a pair of contradictions to still need to be stable and flat. After a long period of use, there will be a loose gap in the clamping part of the joint. This gap slightly affects the stability of the front armrest, but it is also a safety hazard that may pinch infants and young children.

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