Three-wheeled type sickbed universal wheel based on gear transmission
A gear transmission and universal wheel technology, applied in the field of universal wheels, can solve the problems of patient discomfort in hospital beds, bed shaking, etc.
Inactive Publication Date: 2018-05-04
CHANGSHU BANGZHI PHOTOELECTRIC TECH CO LTD
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Problems solved by technology
[0002] At present, the traditional steering universal wheel will have a certain "distance" between the rotation axis of the universal wheel and the wheel center of the universal wheel due to the adjustment of its own angle; in the process of changing the direction of the hospital bed, the universal wheel needs to automatically adjust the steering; on the ground Under the effect of friction, the hospital bed using the universal wheel will take the contact point of the universal wheel and the ground as the fulcrum, and swing with the "distance" as the radius, resulting in a certain degree of shaking in the direction of the bed, which will cause discomfort to the patients in the bed, so it is necessary to design a A universal wheel that can eliminate shaking
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[0096] Specific embodiments: when the hospital bed is not moved, the cylindrical rod 1 does not press the trigger plate 23, and thus the three wheels 8 do not act.
[0097] When the sickbed moves at a certain angle α, the cylindrical rod 1 follows the sickbed and moves at a certain angle α; during the movement of the cylindrical rod 1 , the moving rod presses one of the six trigger plates 23 . Take the wheel 8 in the first wheel mechanism 50 as an example: when the cylindrical rod 1 moves at a certain angle α, the wheels 8 in the second wheel mechanism 55 and the third wheel mechanism 56 of the three wheels 8 are subjected to external forces. Push down and swing at a small angle to adapt to the movement of the cylindrical rod 1 to push the housing 2 along a certain angle α; the wheels 8 in the wheels 8 in the first wheel mechanism 50 are difficult to swing and need to be jacked up. Take extruding the trigger plate 23 on the second L-shaped rod 22 as an example: the cylindrical...
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The invention belongs to the technical field of universal wheels, and particularly relates to a three-wheeled type sickbed universal wheel based on gear transmission. The three-wheeled type sickbed universal wheel based on gear transmission comprises a cylindrical rod, a shell, an electromagnetic push block, a Z-shaped plate, wheels, a fourth rack, a first rack, an inputting gear, a guide track bottom plate, a fourth spring, a guide block, a first wheel mechanism, a second one-way mechanism and a third one-way mechanism, wherein two corresponding L-shaped rods move when the cylindrical rod extrudes a triggering plate, then the corresponding racks drive the corresponding one-way mechanisms to rotate, any of the first wheel mechanism, the second wheel mechanism or the third wheel mechanism is jacked up, the wheels which are not jacked up move stably along with a sickbed under the condition that a swinging angle is minimum, finally, certain shaking while a traditional sickbed turns is eliminated, and discomfort of a patient of the sickbed is avoided. The three-wheeled type sickbed universal wheel based on gear transmission is simple in structure, and has good using effect.
Description
technical field [0001] The invention belongs to the technical field of universal wheels, in particular to a three-wheeled universal wheel for a hospital bed based on gear transmission. Background technique [0002] At present, the traditional steering universal wheel will have a certain "distance" between the rotation axis of the universal wheel and the wheel center of the universal wheel due to the adjustment of its own angle; in the process of changing the direction of the hospital bed, the universal wheel needs to automatically adjust the steering; on the ground Under the effect of friction, the hospital bed using the universal wheel will take the contact point of the universal wheel and the ground as the fulcrum, and swing with the "distance" as the radius, resulting in a certain degree of shaking in the direction of the bed, which will cause discomfort to the patients in the bed, so it is necessary to design a A universal wheel that can eliminate shaking. [0003] The ...
Claims
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Login to View More IPC IPC(8): B60B33/00A61G7/05
CPCB60B33/0002A61G7/05B60B33/0055B60B2200/242
Inventor 沈丽亚
Owner CHANGSHU BANGZHI PHOTOELECTRIC TECH CO LTD