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Connection structure for backrest of dental chair

A connection structure and dental chair technology, which is applied in dental chairs, dentistry, operating chairs, etc., can solve problems such as the feeling of rubbing the back, patients can't feel at ease to treat, and the turning distance is large

Pending Publication Date: 2019-01-29
FOSHAN CINGOL MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the use of the dental chair, the angle between the backrest and the seat cushion can be adjusted to meet the needs of the doctor; Rotate with the turning point as the fulcrum. The turning point of the traditional backrest is located below the seat cushion installation, which has the following disadvantages: 1. The turning point is relatively large from the waist of the human body, and there will be a feeling of rubbing the back when the backrest turns. 2. The backrest turns At this time, the mounting plate on the seat cushion will make forward and backward compensation movements, which will drive the seat cushion to move relative to the human body, which will make the patient feel pulled. During the treatment of the patient, it will bring other physical discomfort to the patient, so that the patient cannot be treated with peace of mind. Affect the treatment effect, to sum up the above problems, it is necessary to provide a connection structure that can make the backrest and seat cushion rotate without causing discomfort to the human body

Method used

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  • Connection structure for backrest of dental chair
  • Connection structure for backrest of dental chair
  • Connection structure for backrest of dental chair

Examples

Experimental program
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Effect test

Embodiment 1

[0014] Such as Figure 1-3 As shown, a connection structure for the back of a dental chair in this embodiment includes a seat cushion support plate 10, a fixed plate 20, a backrest 30 and a compensation mechanism 40, and one end of the fixed plate 20 is supported by the seat cushion One end of the plate 10 is rotatably connected, and the other end is connected with the other end of the fixed plate 20 through a compensating mechanism 40. The compensating mechanism 40 includes a rotating rod 41, a first pull rod 43, a second pull rod 44 and a third pull rod 45. Two ends of the rod 41 are provided with connecting rods 42, and the seat cushion support plate 10 is provided with an upwardly protruding mounting portion 11, the rotating rod 41 is rotationally connected with the mounting portion 11 through the connecting rod 42, and the backrest 30 is fixed on On the rotating rod 41 , one end of the first pull rod 43 is rotatably connected to the connecting rod 42 , and the other end i...

Embodiment 2

[0017] Such as figure 1 As shown, a connection structure for the backrest of a dental chair in this embodiment, the seat cushion support plate 10 on the dental chair is two left and right pieces, in order to enhance the stability of the entire seat cushion support plate 10, the seat cushion support plate 10 is also provided with a crossbeam 12, the two ends of the crossbeam 12 are respectively fixed on the two seat cushion support plates 10, which can effectively fix the left and right seat cushion support plates 10, enhance the stability and at the same time The seat cushion lays flat on top to help the seat cushion stay in place.

Embodiment 3

[0019] Such as figure 1 As shown, a connection structure for the backrest of a dental chair in this embodiment, in order to increase the comfort of the human body and reduce the feeling of rubbing the back of the human body due to the adjustment of the angle between the backrest 30 and the seat cushion support plate 10, said Backrest 30 comprises arc portion 32 and plate portion 31, and one end of described arc plate 32 is fixed on the rotating bar 41, and the other end is fixedly connected with plate portion 31, and when backrest 30 moves downward, the arc plate of backrest 10 32 is hidden under the seat cushion, and the curved portion 32 conforms to the waist structure of the human body, increasing comfort.

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Abstract

The invention relates to the technical field of dental chairs, in particular to a connection structure for a backrest of a dental chair. The connection structure comprises a seat cushion supporting plate, a fixing plate, the backrest and a compensation mechanism; a mounting part on the seat cushion supporting plate is rotationally connected with a rotating rod, and the backrest is fixed to the rotating rod; the position of a rotating point of the connection structure is compared with a traditional rotating point located below the seat cushion supporting plate, the rotating point of the backrest is raised, the distance of the rotating point and a rotating point of the waist of a human body is decreased, and thus the back friction feel is reduced; in addition, when the backrest rotates, theseat cushion supporting plate makes compensation movement through the compensation mechanism, the backrest is raised, a mounting plate rotates downwards, an included angle between the mounting plate and the backrest is increased, the oppressing sensation when a patient is pushed upwards by the backrest is reduced, thus the patient is more comfortable when sleeping on the backrest, the situation that the body is uncomfortable is avoided, and the patient can be treated with peace of mind.

Description

【Technical field】 [0001] The invention relates to the technical field of dental chairs, in particular to a connection structure for the back of a dental chair. 【Background technique】 [0002] During the use of the dental chair, the angle between the backrest and the seat cushion can be adjusted to meet the needs of the doctor; Rotate with the turning point as the fulcrum. The turning point of the traditional backrest is located below the seat cushion installation, which has the following disadvantages: 1. The turning point is relatively large from the waist of the human body, and there will be a feeling of rubbing the back when the backrest turns. 2. The backrest turns At this time, the mounting plate on the seat cushion will make forward and backward compensation movements, which will drive the seat cushion to move relative to the human body, which will make the patient feel pulled. During the treatment of the patient, it will bring other physical discomfort to the patient,...

Claims

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Application Information

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IPC IPC(8): A61G15/10A61G15/02
CPCA61G15/02A61G15/10
Inventor 金龙方元新李剑聪
Owner FOSHAN CINGOL MEDICAL INSTR
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