Ultralow all-plastic central control wheel

Abstract

An ultralow all-plastic central control wheel comprises a supporting seat assembly, an outer rolling wheel assembly and a control assembly, the supporting seat assembly comprises a supporting seat upper shell and a supporting seat lower shell, the supporting seat upper shell is provided with a containing cavity internally provided with the control assembly, and the control assembly comprises an adjusting cam, a main shaft, a sleeve, a gasket, a bearing, a limiting clamping ring and a locking base. A bottom support and a bayonet socket are arranged on the supporting seat lower shell, a brake block is arranged on the bottom support through a small spring, brake teeth are arranged at the two ends of the brake block, the bayonet socket is connected with a locking base through a second spring, a brake lever is arranged in an inserting groove in one side of the locking base, and the end, away from the locking base, of the brake lever abuts against the brake block. The bottom support is provided with an outer roller part comprising a roller disc, a roller outer ring and an outer side plate on two sides of the supporting seat assembly through a rotating shaft; and an inner gear ring matched with the brake teeth is arranged on the inner side of the roller disc. Compared with the prior art, the central control wheel can achieve flexible braking at any time, can achieve locking in the direction of the main shaft at the same time, and is flexible and stable to use.

Description

technical field [0001] The invention relates to the technical field of casters, in particular to an ultra-low all-plastic central control wheel. Background technique [0002] Casters are a common structure for rolling and carrying heavy objects in modern industry. They are widely used in many industries and fields such as engineering, equipment, logistics, warehousing, medical treatment, furniture, carts, bags, etc. In order to facilitate the transportation of patients, multiple casters need to be installed under the beds in hospitals. Therefore, it is required that such casters can be braked flexibly at any time and can rotate flexibly in multiple directions. However, the current common central control wheel is to set the brake pedal on the side of the wheel to cooperate with the brake block to stop the wheel. After long-term use of this structure, the brake block wears very seriously and cannot be braked quickly. Moreover, such a structure cannot lock the direction of the...

AI Technical Summary

Problems solved by technology

However, the current common central control wheel is to set the brake pedal on the side of the wheel to cooperate with the brake block to stop the wheel. After long-term use of this structure, the brake block wears very seriously and cannot be braked quickly.

Moreover, such a structure cannot simultaneously lock the direction of the main shaft of the foot of the hospital bed, and the use is not stable enough.

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