Connecting rod type central control caster control system

Abstract

The invention provides a connecting rod type central control caster control system. The system comprises a linkage device, a rotating body, a clamping set and an execution set; the linkage device comprises a hexagonal head, a cam, a hexagonal rod, a hexagonal sleeve, a mounting shaft, a left bushing, a right bushing and a bushing cover. The rotating body comprises a ball bearing, a ball bearing sleeve, a main shaft bearing, a main shaft bearing sleeve and a support; the clamping set is of a symmetric structure and comprises a fluted disc, a rotating block, telescopic blocks, a spring, a connecting rod, a rotating sleeve half gear, a baffle and a brake block. When the left telescopic block is located in a symmetric groove, a caster is enabled to be in a straight advancing state; when the left telescopic block and the right telescopic block are separated from the symmetric groove, the cater is in a universal state; when the left telescopic block is located in the symmetric groove and thebrake block is clamped in the fluted disc in the caster, the caster is in a braking state. On the premise that it is guaranteed that the straight advancing state, the universal sate and the brake orientation state are quickly switched, the system is compact in structure, easy to assemble and convenient to assemble and maintain.

Description

technical field [0001] The invention belongs to the field of medical device research, and in particular relates to a novel control system of a link type central control caster for a medical operating bed caster. Background technique [0002] At present, with the development of society, especially in the medical industry, the commonly used casters such as medical beds and carts are widely used because of their easy operation and reliable structure. However, with the development of science and technology, casters, as secondary accessories of large nursing facilities such as hospital beds and trolleys, are required to be fine, simple, and reliable. This requires us to simplify the configuration of the internal structure of casters and pass fewer accessories. Even one or two spare parts to realize the original product function. [0003] At present, the central control caster wheel of China Taiwan with the authorized announcement number CN202656787U has a complex structure of th...

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Problems solved by technology

[0003] At present, the central control caster wheel of China Taiwan with the authorized announcement number CN202656787U has a complex structure of the control system, high cost and many parts; the Chinese patent with the authorized announcement number CN 2860901Y discloses a double-wheeled central control caster wheel, Although the central control caster can realize the above three functions at the same time, the structure of the two-wheel central control caster is complicated, the manufacturing cost is high, and the brake is realized by using sliders and slots, which leads to the double-wheel central control The braking strength of the casters is low, which affects the service life, and even leads to the safety performance of the double-wheel central control casters.

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