Dental chair seat cushion folding and footrest automatic retractable device

Abstract

The invention relates to a seat cushion folding and foot placing plate automatic-telescoping device of a dental chair, and belongs to the field of dental medical treatment instrument manufacturing technique. The seat cushion folding and foot placing plate automatic-telescoping device of the dental chair is characterized in that foldable devices are arranged among the connection of a rear seat cushion support and a connecting portion between a foot placing plate support and the back connection piece, an automatic-telescoping device is disposed under a front seat cushion, and the foot placing plate is fixedly disposed on the automatic-telescoping device. The seat cushion folding and foot placing plate automatic-telescoping device of a dental chair is simple in structure, small in size, and stable and reliable in operation, and with a torsion spring acting as an elastic force application element, the device has more security, the problem that a human body is squeezed or equipment is damaged can be prevented. With the back luffing and seat cushion folding movement of the dental chair, the back of the dental chair is used for driving the push-and-pull movement of a motor during the luffing, the synchronous linkage of the foot placing plate in the front of the seat cushion is produced by torsion of the torsion spring and transmission of a stay wire, thereby automatic telescoping of the foot placing plate is realized.

Description

1. Technical field [0001] The invention relates to a foldable and automatically telescopic dental treatment chair, in particular to a dental chair seat cushion folding and footrest automatic telescopic device, which belongs to the technical field of dental medical equipment manufacturing. 2. Background technology [0002] Dental comprehensive treatment machine is usually used for the examination and treatment of oral diseases, and it is the main diagnosis and treatment equipment of stomatology. The dental treatment chair (hereinafter referred to as the dental chair) is a part of the comprehensive dental treatment machine. It is a carrier used to support the dental patient during the treatment process, allowing the patient to sit, sit up and lie down on the dental treatment chair. [0003] At present, most of the dental chairs produced at home and abroad have the seat cushion as a whole and cannot be folded, which is inconvenient for patients to sit on. There are also some m...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the current three-fold dental chair, which can only be folded manually when in use, and the length cannot be automatically stretched, which is inconvenient to operate and use, thus proposing a new technical solution

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