Single-power multi-axis linkage electric nursing bed

Abstract

The invention relates to a single-power multi-axis linkage electric nursing bed, which comprises combined bed boards, a bed board frame, a bottom bed frame, an upper bed frame, a linear push rod and alinkage mechanism, wherein the linear push rod and the linkage mechanism are arranged between the bed frames; the lower end of the linear push rod is fixed on the bottom bed frame, while the upper end is connected with a first frame linking rod, and is connected with a second frame linking rod through a first linkage rod; and at the same time, the linear push rod is connected with a third frame linking rod through a second linkage rod. Under the synchronous push of the linear push rod, a hip bed board rotates with a rotating shaft of the upper bed frame; a back bed board is raised or flattedby the connection among a supporting frame, the back bed board and a hip bed board frame; and meanwhile, crus boards and foot boards turn down to present an L-shaped structural gesture. The electric nursing bed has the advantages of providing the electric nursing bed which can be operated by a patient in bed independently to synchronously complete the actions of raising the back, lowering the hip,bending knees and stepping, having more reasonable movement adjustment, higher reliability and reduction of production cost, and being favorable for popularization and application.

Description

【Technical field】 [0001] The present invention relates to an electric nursing bed in the technical field of service robots. Specifically, it is an electric nursing bed with single power input and multi-axis linkage, which simultaneously completes four functions of back raising, hip lowering, leg bending and foot stepping. 【Background technique】 [0002] The nursing bed is a service robot that can improve the self-care ability of bedridden elderly or patients, reduce the work intensity of nursing staff, and reduce the worries of family members. With the continuous improvement of people's life expectancy, the aging population in society is increasing, and the demand for nursing beds is also increasing. With the development of technology and the society's more attention to the elderly and bedridden patients, there are more and more functional nursing beds, which provide various conveniences for the life and treatment of the elderly or bedridden patients. [0003] At present, t...

AI Technical Summary

Problems solved by technology

[0005] (1) The chain drive does not have a self-locking function. When the motor is powered off, the moving bed board cannot be in a locked static state, which will affect the rest of the bedridden person

[0006] (2) The noise of the chain drive is too loud, and it is prone to tooth jumping, which affects the safety of the nursing bed

[0007] (3) It is driven by a servo motor. Because the price of the servo motor is relatively expensive, the cost of the electric nursing bed is too high and it is difficult to promote it.

[0008] (4) The turning mechanism adopts a link mechanism with single motor input and single shaft output. One motor only drives one side of the bed, so the power utilization efficiency is not high and the energy saving effect is poor.

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