Anti-tilt wheelchair chassis structure and off-road wheelchair

Abstract

The invention discloses an anti-tilt wheelchair chassis structure and an off-road wheelchair. The anti-tilt wheelchair chassis structure comprises a chassis assembly; a gravity center balance assembly is installed in the center of the chassis assembly, and comprises a first rear wheel connecting frame, a second rear wheel connecting frame, a first front wheel connecting frame, a second front wheel connecting frame, a conversion rod and a conversion shock-absorbing mechanism; a four-wheel steering assembly is arranged at the top of the chassis assembly, and used for driving four wheels to deflect synchronously; a seat frame is installed on the top of the chassis assembly; and the conversion shock-absorbing mechanism is rotationally installed between the chassis assembly and the seat frame. When any wheel connecting frame on any side moves upwards, the other wheel connecting frame located on the diagonal line of the wheel connecting frame can also equivalently move upwards under the driving of the conversion shock-absorbing mechanism while the two wheel connecting frames located on the other diagonal line are synchronously pressed downwards by the conversion shock-absorbing mechanism, so that the gravity center is balanced; and thus, the danger of excessive inclination and overturning is reduced.

Description

technical field [0001] The invention belongs to the technical field of wheelchair manufacturing, in particular to an anti-tilt wheelchair chassis structure and an off-road wheelchair. Background technique [0002] With the current wheelchair technology in society, especially wheelchairs equipped with shock absorbing springs, when the wheelchair is driving on a steep slope front and rear or on a slope left and right, the center of gravity will tilt to the lower side, causing the wheelchair to have a great risk of tipping over; When turning quickly, the centrifugal force will cause the center of gravity to shift from the inside to the outside. At the same time, the wheelchair beam will lift up with reduced gravity on the inside and increase and fall on the outside. At this time, it is also prone to the danger of tilting and overturning. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the present invention provides an anti-tilt wheelchair chass...

AI Technical Summary

Problems solved by technology

[0002] With the current wheelchair technology in society, especially wheelchairs equipped with shock absorbing springs, when the wheelchair is driving on a steep slope front and rear or on a slope left and right, the center of gravity will tilt to the lower side, causing the wheelchair to have a great risk of tipping over; When turning quickly, the centrifugal force will shift the center of gravity from the inside to the outside. At the same time, the wheelchair beam will lift up with less gravity on the inside and increase and fall on the outside. At this time, it is also prone to the danger of tilting and overturning.

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