CN207152326U - One kind lifts device for folding - Google Patents

Abstract

Furniture part field is the utility model is related to, more particularly to one kind lifts device for folding.One kind lifts device for folding, including fixed plate and linking arm, and the fixed plate and linking arm are hinged, and fixes at least two linking arms by the block that is rigidly connected and be synchronized with the movement.Two are fixed and are synchronized with the movement by the utility model by the block that is rigidly connected even more than rotatable linking arm, are broadened and are lifted device for folding so that and it is more stable when supporter uses, it is not easy to rock.

Description

One kind lifts device for folding

Technical field

Furniture part field is the utility model is related to, more particularly to one kind lifts device for folding.

Background technology

Inferior health is always problem concerning life of concern, wherein, because sitting gives people the lumbar vertebrae problem particularly frequency brought It is numerous, it is well known that human spine is S-type, and the chair back of seat is typically straight up and down now, or the middle and lower part of the chair back Have and slightly arch upward to improve the comfortableness of chair back support, but the chair of these structures all can not be to the S type backbones of human body Preferably supported, and the general back-supported angle of chair of these structures is unadjustable, it is impossible to meet individual difference, therefore Can not solve the problems, such as the vertebra that sitting is brought to user.

Although carrying the chair of Lumbar in currently available technology, under the position of Lumbar is normally in chair Portion, and the length of Lumbar is shorter, adjustable range is limited, and Lumbar width is wide, it is impossible to is pointed to the vertebra in the middle part of human body and is formed Preferably support, influences support effect.And generally required because Lumbar is wider it is multiple lift device for folding, otherwise Lumbar is held when in use Easily rock, influence the life-span.

The content of the invention

In order to solve above-mentioned technical problem, the purpose of this utility model is to provide a kind of simple in construction, supporting ＆ stablizing Lift device for folding.

In order to realize above-mentioned purpose of utility model, the utility model employs following technical scheme：

One kind lifts device for folding, including fixed plate and linking arm, and the fixed plate and linking arm are hinged, and by being rigidly connected At least two linking arms are fixed and are synchronized with the movement by block.

Preferably：The both ends at the middle part of the fixed plate turn down to form fixed arm to homonymy, the fixed arm Side is additionally provided with cover plate, and the linking arm is hinged in the cavity that fixed arm is formed with cover plate.

Preferably：Pawl block is also hinged with the fixed arm, ratchet wheel block is fixed with the linking arm, it is described It is provided between pawl block and ratchet wheel block and resets groove, the both sides of one end of the cover plate is provided with gear edge, and two gears are spaced between Provided with locating piece, spring leaf is additionally provided with the locating piece, the middle part of the spring leaf is described positioned at the outside of a locating piece The both ends of spring leaf are respectively positioned at the inner side of another locating piece and the inner side on gear edge, and be located at the bullet on the inside of another locating piece Reed is folded upward at offseting with pawl block.

Preferably：Rotated between fixed plate and linking arm using gas bar or air bag driving.

Two are fixed and are synchronized with the movement by the utility model by the block that is rigidly connected even more than rotatable linking arm, are widened Lift device for folding so that it is more stable when supporter uses, it is not easy to rock.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is covering plate structure schematic diagram of the present utility model.

Embodiment

Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model Limitation.

In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " up time The orientation or position relationship of the instruction such as pin ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of Describe the utility model and simplify to describe, rather than instruction or imply signified device or element must have specific orientation, With specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.

In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include one or more this feature.In description of the present utility model, unless otherwise indicated, the implication of " multiple " It is two or more, is limited unless otherwise clear and definite.

In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood as the case may be Concrete meaning in the utility model.

In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under " can directly be contacted including the first and second features, it is not directly to contact but lead to that can also include the first and second features The other characterisation contact crossed between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the One feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special Sign second feature " under ", " lower section " and " below " including fisrt feature immediately below second feature and obliquely downward, or only Represent that fisrt feature level height is less than second feature.

One kind as Figure 1-Figure 2 lifts device for folding, including fixed plate 30 and linking arm 35, the fixed plate 30 and connection Arm 35 is be hinged, and fixes at least two linking arms 35 by the block 36 that is rigidly connected and be synchronized with the movement.

The both ends at the middle part of the fixed plate 30 are turned down to form fixed arm 32 to homonymy, and the side of the fixed arm 32 is also set There is cover plate 31, the linking arm 35 is hinged in the cavity that fixed arm 32 is formed with cover plate 31.

Pawl block 33 is also hinged with the fixed arm 32, ratchet wheel block 34, the ratchet are fixed with the linking arm 35 Be provided between block 33 and ratchet wheel block 34 and reset groove, the both sides of one end of the cover plate 31 be provided with gear along 38, two gears along 38 it Between be interval with locating piece 37, be additionally provided with spring leaf 39 on the locating piece 37, the middle part of the spring leaf 39 is fixed positioned at one The outside of position block 37, the both ends of the spring leaf 39 positioned at the inner side of another locating piece 37 and keep off the inner side along 38 respectively, and Spring leaf 39 positioned at another inner side of locating piece 37 is folded upward at offseting with pawl block 33.Between fixed plate 30 and linking arm 35 Also gas bar or air bag driving can be used to rotate.

Lift when device for folding uses due to the cooperation of pawl block 33 and ratchet wheel block 34, within the specific limits can only one-way movement, When linking arm turns to the top, because pawl block 33 is absorbed in the reset groove of ratchet wheel block 34, linking arm just can reversely turn Go back to bottom.

It should be pointed out that above example is only representative example of the present utility model.The utility model can also have many Deformation.Every any simple modification, equivalent change and modification made according to essence of the present utility model to above example, It is considered as belonging to the scope of protection of the utility model.

Claims (4)

1. one kind lifts device for folding, it is characterised in that：Including fixed plate（30）And linking arm（35）, the fixed plate（30）And connection Arm（35）It is be hinged, and pass through the block that is rigidly connected（36）By at least two linking arms（35）Fixation is synchronized with the movement.

2. one kind according to claim 1 lifts device for folding, it is characterised in that：The fixed plate（30）Middle part both ends to Homonymy turns down to form fixed arm（32）, the fixed arm（32）Side be additionally provided with cover plate（31）, the linking arm（35）It is be hinged In fixed arm（32）With cover plate（31）In the cavity of formation.

3. one kind according to claim 2 lifts device for folding, it is characterised in that：The fixed arm（32）On be also hinged with ratchet Block（33）, the linking arm（35）On be fixed with ratchet wheel block（34）, the pawl block（33）With ratchet wheel block（34）Between be provided with it is multiple Position groove, the cover plate（31）One end both sides be provided with gear edge（38）, two gear edges（38）Between be interval with locating piece （37）, the locating piece（37）On be additionally provided with spring leaf（39）, the spring leaf（39）Middle part be located at a locating piece（37） Outside, the spring leaf（39）Both ends be located at another locating piece respectively（37）Inner side and gear edge（38）Inner side, and Positioned at another locating piece（37）The spring leaf of inner side（39）It is folded upward at and pawl block（33）Offset.

4. one kind according to claim 1 lifts device for folding, it is characterised in that：Fixed plate（30）With linking arm（35）Between adopt Rotated with gas bar or air bag driving.