CN2151738Y

CN2151738Y - Lifting folding dental portable chair

Info

Publication number: CN2151738Y
Application number: CN 92241718
Authority: CN
Inventors: 甘联友
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-11-11
Filing date: 1992-11-11
Publication date: 1994-01-05
Anticipated expiration: 2002-11-11

Abstract

The utility model relates to a dental portable chair, its constitutional features is: is composed of a seat frame body, a backrest frame body and an adjusting device; the height required by the backrest can be adjusted, the backrest frame is hinged with the folding frame plate, the foldable seat surface is flat, the size is reduced, the lower part of the folding frame plate is connected with the lifting body device, the lifting body device drives the seat and the backrest to have the required height simultaneously, and the supporting column device is composed of supporting legs which can be folded upwards and folded around the supporting column.

The product is convenient to fold and draw, has reduced volume, simple structure, convenient carrying, easy storage and convenient use.

Description

Lifting and folding dental portable chair

This utility model relates to a kind of dentistry easy chair, and at present domestic and international dentistry easy chair has collapsible and not collapsible dentistry easy chair usually.

But existing dentistry easy chair, its structure is: connect bracing frame or circle basin by the seat below, it immobilizes, and promptly can not roll over gathering.Particularly seat and position of back are constant, and it can not be amounted to by backrest, when not being used like this, need unload fully parts, folding volume is big, complex structure.

This utility model improves above-mentioned deficiency, and the bracing frame of this utility model seat frame supported underneath device adopts active supporting leg, and by the fixture location, as long as adjusting device, supporting leg can be rolled over and draw the seat below in.Particularly seat and position of back are adjustable, change height by adjusting device, and it is equal that backrest can be amounted to the seat face, dwindles area occupied.Simple in structure, easy to use.Below in conjunction with drawings and Examples this utility model is described in detail:

Fig. 1 is this utility model theory structure sketch map.

Fig. 2 analyses and observe state operation principle sketch map.

Fig. 3 is that supporting leg is amounted to gathering seat frame below sketch map.

Fig. 4 is that the backrest body amounts to the seat face equal sketch map.

With reference to accompanying drawing 1 to shown in Figure 4, by seat frame 1, device seat face, hang down and connect and fixed mount 2 in seat support body 1 central authorities below, fixed mount 2 is provided with plug pin 3, be hinged by plug pin 3 and support column 4, support column 4 and fixing bracket body can before and after movable, for stable elevation is not swung in the front and back activity that makes fixing bracket body and support column, the hinged supporter assembly in folding frame plate 23 belows of backrest support body, form by support set 29 and the elevating lever 27 and the actuator 28 that can in support set, slide, support set lower end and supporting leg 12 are hinged, supporting elevation bar 27 is provided with location indentations, can be driven the seat support body and the backrest support body while adjustable height of support column upper end by actuator scalable elevating lever.Support column 4 lower end joint angle frame plates 15, the corner bracket plate can be established (tripod or polygonal), corner bracket plate and 6 supporting legs are hinged, the movable supporting bottom bands of trouser legs has fixture device location, fixture as shown in Figure 1, by circle cover 5, circle flat board 31, actuator 11 is formed, and circle cover flat board is provided with breach 32, so needing only when being used, supporting leg regulates localizer, turn to circle cover flat board breach 32 backs to aim at supporting leg upper recess 13 again, round cover flat board snaps in the supporting leg recess is located, for stable circle cover flat board, then at the positioner of circle cover, alignment pin 7 snaps in the recess of support column simultaneously and fixes.Localizer assembly by, snap in recess alignment pin 7 and be connected thin bar 9, thin bar stage clip 8 and guide blind nut 11 and form, the rear end that alignment pin passes blind nut is provided with draw ring 10.It is identical that this utility model is provided with 4 actuators, 11,19,22,28 mechanisms.Seat frame front lower place connects steps on foot rest 33, is located by bolting seat frame screw.Fixedly connected hand steered position 30, seat frame both sides.Seat frame rear end is through hinge 16, long plug pin 18, and hinged backrest support body 17, the backrest support body is provided with backrest actuator 19, and the seat frame connects regulates location-plate 20, by regulating localizer 19 and location-plate scalable backrest desired height.

The hinged folding frame plate 23 in back rest upper end is by 21 bolted splices, in order to make active folding frame plate 23 location, the back rest upper end is provided with the folding frame plate and regulates localizer 22, and its effect is to regulate fixing folding frame plate and amount to the folding frame plate, folding frame plate upper end is provided with screw 24, device backrest face, as Fig. 1 23 shown in.23 belows of folding frame plate are provided with the positioning sleeve 26 of support devices and head position, as Fig. 4 26 shown in, the positioning sleeve bolt by 26, the inserted link lifting of scalable head 25 is fixed.This utility model folding step at first unloads steps on foot rest 33, pulls out alignment pin by the actuator 28 of the supporter of rolling over frame plate 23 belows again, breaks away from the elevating lever recess, pull out elevating lever 27, by backrest support body actuator 19, pull out alignment pin successively, break away from the location-plate recess, the backrest support body is pressed onto the extreme higher position forward, by the actuator 22 of folding frame plate, pull out alignment pin successively, the folding frame plate can be pressed forward, amount to equal with the seat face, as shown in Figure 4.After this support column circle by seat frame below overlaps 5 actuator 11, pulls out alignment pin, and the slewing circle cover is dull and stereotyped again behind the disengaging positioning supports post recess, forward breach 32 to, supporting leg can upwards fold and support column surrounding, presses forward again, support column 4 can be amounted to seat frame below, as shown in Figure 3.

It is little that this utility model is amounted to volume, and carrying is carried light, is easy to deposit, and is easy to use.

Claims

1, a kind of dentistry easy chair, it is made up of seat support body, backrest support body, adjusting device and supporting leg.It is characterized in that: connect support column, supporting leg below seat, its supporting leg is that circle cover flat board that activity has a fixture device snaps in the supporting leg recess and fixed.

2, according to the described dentistry easy chair of claim 1, it is characterized in that: seat frame front end below connects steps on foot rest 33, fixing hand steered position, seat frame both sides, and seat frame rear end is provided with hinge, hinged backrest support body and adjusting device.

3, according to the described dentistry easy chair of claim 1, it is characterized in that: bracing or strutting arrangement, corner bracket plate, (tripod) are provided with recess 14, and corner bracket plate and supporting leg are hinged, and supporting leg 13 is provided with recess.

4, according to the described dentistry easy chair of claim 1, it is characterized in that: the hinged folding frame plate 23 of back rest, it is equal that the folding frame plate can be amounted to the seat face, the hinged support devices in folding frame plate 23 belows, the hinged supporting leg 12 in lower end.

5, according to claim 1,2 described dentistry easy chairs, it is characterized in that: the assembly of adjusting device by, the thin bar 9 of alignment pin 7, alignment pin, stage clip 8, guide blind nut 11 that snaps in recess formed, the thin bar of alignment pin is provided with draw ring 10.