CN204207377U - The elevating adjusting device of chair - Google Patents

Abstract

A kind of elevating adjusting device of chair, by the support in the rebasing portion of hydraulic cylinder device support chair; This hydraulic cylinder device comprises pedestal, and inside is provided with hydraulic system, stretches out the rotating shaft being positioned at right side and the rotating shaft being positioned at left side to two sides; Be fixedly arranged on cylinder body and be inserted in the cylinder axle of this cylinder body inside, this hydraulic cylinder device is connected with the upper and lower pedal that falls; Be characterised in that: the rotating shaft on the left of this is socketed stack shell, affixed controll block on front side of this stack shell, this controll block outer face is formed as skew wall; The body of rod tail end that the bending of this decline pedal centre axle extends sets firmly the sleeve of horizontally set, and outside more sets firmly the sliding piece stretched to declivity; Rotating shaft front place on support bottom this chair cushion on the left of this be provided with this on the left of the support axostylus axostyle of shaft parallel; Have torsion elastic component to be sheathed on this support axostylus axostyle, the sleeve of this decline pedal tail end is sheathed on this support axostylus axostyle again; This torsion elastic component end is placed on this support, and another end holds up the body of rod of this decline pedal.

Description

The elevating adjusting device of chair

[technical field]

The utility model is the elevating adjusting device about a kind of chair, refer to especially a kind of by respectively under trample a rising pedal and a decline pedal action go manipulation one chair cushion to produce the elevating adjusting device of the chair of rising and down maneuver respectively.

[background technology]

Chair (Chair) is a kind of implements for taking, it has been known common constructing apparatus that the seat cushion position of current chair can be elevated, such as modal office chair utilizes pneumatic cylinder to come lifting seat cushion position, it is via a pneumatic cylinder release air pressure below proficiency tommy bar unblank seat cushion position when zero load, make cushion position by lifting, then this hand tommy bar unblank pneumatic cylinder is utilized equally when load-carrying, now utilize body wt to oppress cushion position to decline, simultaneously and make pneumatic cylinder store air pressure, to treat that next time uses.Except the constructing apparatus utilizing pneumatic cylinder as the seat cushion position of chair lift, also the constructing apparatus person at the seat cushion position utilizing liquid (oil) cylinder pressure as chair lift is had, the modal doctor of being takes the operations chair (Operating Chair) of use when carrying out diagnosis and treatment, doctor must look sufferer height or Height Adjustment (change) the cushion high and low position by diagnosis and treatment position when carrying out diagnosis and treatment, therefore for asking adjustment, adopt hydraulic cylinder as the constructing apparatus at doctor's operations chair lifting seat cushion position.

Known utilization is as the hydraulic cylinder of the elevating adjusting device of doctor's operations chair, general differentiation has the cylinder axle being positioned at outside cylinder body (casing wall) and being inserted in this cylinder body inside, this cylinder axle can move axially in this cylinder body inside when being subject to hydraulic drive, this cylinder axle external end head engages with the seat cushion of operations chair, this cylinder body top, bottom is respectively provided with an oilhole, and send oily device to be connected with one, operations chair can be provided with two pedals in the place of trampling downwards in facilitating doctor's sole close to bottom, use fooled doctor trample wherein a pedal (such as right steps) time, directly can start this send oily device to the oilhole oil-feed bottom this cylinder body, and it is fuel-displaced from the oilhole at this cylinder body top, this cylinder axle so can be made to stretch out relative to this cylinder body, so that the seat cushion position promoting operations chair to rise, when doctor tramples another pedal (such as Vehicular left pedal), this send oily device to the oilhole oil-feed at this cylinder body top to be then transformed into directly startup, and oilhole bottom this cylinder body is fuel-displaced, so makes this cylinder axle inside contract relative to this cylinder body, declines to drive seat cushion position.

Above-mentioned known utilization is general conventional construction as the hydraulic cylinder of the elevating adjusting device of doctor's operations chair, therefore the order of turnover oil must be selected by the oilhole of pushes pedals directly from cylinder body top, bottom, go out to make cylinder shaft extension or inside contract, but it is so comparatively numerous and diverse in installing, must each oilhole be connected by different oil pipe and send oily device, and whether the connecting state constantly inspecting oil pipe and oilhole is normal, necessary maintain and replace in time having damaged emptying situation to produce, use and seem relatively undesirable, obviously have much room for improvement.

[utility model content]

The purpose of this utility model is namely when providing one to trample different pedal downwards, differentiation has directly drive and indirectly drives two kinds, to drive the rotating shaft of a hydraulic cylinder device do positive deflection and oppositely deflect during difference, the elevating adjusting device of the chair rising to facilitate master cylinder axle and decline.

For reaching above-mentioned purpose, namely the utility model designs a kind of elevating adjusting device of chair, supports the support bottom a chair cushion by a hydraulic cylinder device; This hydraulic cylinder device includes a pedestal, and be set up on the support bottom this chair cushion, inside is provided with hydraulic system, and stretches out the rotating shaft that a rotating shaft and being positioned at right side is positioned at left side to two sides; The one cylinder body and be fixedly arranged on this pedestal top is inserted in the cylinder axle of this cylinder body inside, and this cylinder axle top is connected with the support bottom this chair cushion; This hydraulic cylinder device is connected with a rising pedal and a decline pedal, and the body of rod tail end that the bending of this rising pedal centre axle extends engages with the rotating shaft on the right side of this; It is characterized in that: the stack shell rotating shaft on the left of this being socketed joint one hollow form, an affixed controll block on wall body on front side of this stack shell, this controll block outer face is formed as a downward interior oblique skew wall; The body of rod tail end that the bending of this decline pedal centre axle extends sets firmly the sleeve that a horizontally set is hollow form, more sets firmly one to stretch sliding piece from an angle to declivity outside it; Rotating shaft front place on support bottom this chair cushion on the left of this stretch be provided with one with this on the left of the support axostylus axostyle of shaft parallel; Have a torsion elastic component to be first sheathed on this support axostylus axostyle, then the sleeve of this decline pedal tail end is sheathed on this support axostylus axostyle again; This torsion elastic component one end is placed on this support, and the other end then holds up the body of rod of this decline pedal.

The elevating adjusting device of described chair, is characterized in that: when this rising pedal is subject to trampling, the deflection action rotated forward forward is done in the rotating shaft on the right side of this, and the hydraulic system started in this pedestal makes this cylinder axle raise.

The elevating adjusting device of described chair, it is characterized in that: when the deflection action rotated forward forward is done in the rotating shaft on the right side of this, rotating shaft on the left of this is together with this stack shell and controll block all in company with doing the deflection action rotated forward forward, and the sliding piece of the body of rod tail end that this decline pedal centre axle extends is then static.

The elevating adjusting device of described chair, it is characterized in that: when this decline pedal is subject to trampling, the sleeve of the body of rod tail end that this decline pedal centre axle extends and sliding piece are in company with deflection, the controll block of this sliding piece tail end namely upwardly on this stack shell does reverse deflection together with the rotating shaft on the left of this, and the hydraulic system started in this pedestal makes this cylinder axle decline.

The utility model advantage and effect are: when providing one to trample different pedal downwards, differentiation has directly drive and indirectly drives two kinds, to drive the rotating shaft of a hydraulic cylinder device do positive deflection and oppositely deflect during difference, the elevating adjusting device of the chair rising to facilitate master cylinder axle and decline.

[accompanying drawing explanation]

Fig. 1 is the stereoscopic figure of the utility model embodiment.

Fig. 2 is the three-dimensional combination figure of hydraulic cylinder device and rising pedal and decline pedal in the utility model embodiment.

Fig. 3 is the three-dimensional exploded view of hydraulic cylinder device and rising pedal and decline pedal in the utility model embodiment.

Fig. 4 is the combination right side view of hydraulic cylinder device and rising pedal in the utility model embodiment.

Fig. 5 is the effect right side view of the utility model embodiment hydraulic cylinder device when trampling rising pedal.

Fig. 6 is the combination left side view of hydraulic cylinder device and decline pedal in the utility model embodiment.

Fig. 7 is the enlarged drawing of major part in Fig. 6.

Fig. 8 is effect left side view when left side rotating shaft deflects in company with right side rotating shaft in the utility model embodiment.

Fig. 9 is the enlarged drawing of Main Function part in Fig. 8.

The effect left side view of hydraulic cylinder device when Figure 10 is rotating shaft on the left of the utility model embodiment is trampled.

Figure 11 is the enlarged drawing of Main Function part in Figure 10.

Number in the figure is described as follows:

Chair 10 chair cushion 11 chair back 12 elastic plate 121

To handrail 13 connecting rod 131 chair pin case 14 pairs of rear rollers 15

Front wheel 16 front retainer 17 locates barrel shell 171 locating pad 172

Front running board 173 bumper step 174 rises pedal 181 body of rod 1811

Spiral shell section 1812 retaining wall 1813 lock-connecting piece 1814 declines pedal 182

Sleeve 1822 sliding piece 1823 torsion elastic component 1824 hydraulic cylinder device 19

Pedestal 191 rotating shaft 192R wears groove 1921 rotating shaft 192L

Wear groove 1922 cylinder body 193 cylinder axle 194 stack shell 195

Interlocking hole 1951 lock-connecting piece 1952 controll block 196 skew wall 1961

Support axostylus axostyle 197

[detailed description of the invention]

Refer to shown in Fig. 1, the utility model embodiment is a chair 10, especially be a kind of operations chair being suitable for doctor and using, from the appearance go out this chair 10 and there is chair cushion 11, chair back 12, pair of armrests 13, chair pin case 14, a pair rear roller 15, front wheel 16, front retainer 17, rising pedal 181 and a decline pedal 182, wherein, supported by a support (Fig. 1 is not shown) bottom this chair cushion 11, this chair back 12 is connected with the support bottom this chair cushion 11 by an elastic plate 121, and with the suitable hypsokinesis elasticity of tool, this chair back 12 is height adjusting position also, this is connected with the support bottom this chair cushion 11 by a connecting rod 131 handrail 13, and to facilitate elbow position to lean on, this is to handrail 13 also height adjusting position, this chair pin case 14 is the peripheries (gain is attractive in appearance) of the support holding together to cover in bottom this chair cushion 11, and its inside is equiped with support and other assemblies (then can describe in detail), this to be connected with the support bottom this chair cushion 11 rear roller 15 and point to be positioned at rear left and right sides, this front wheel 16 is connected with the support bottom this chair cushion 11 and is positioned at dead ahead, therefore chair 10 makes to move in the plane by these rear rollers 15 and this front wheel 16 common support, this front retainer 17 is at the upright below location barrel shell 171 close to this front wheel 16, its inside sets up a locating pad 172 downwards, and be located at outside front running board 173 and bumper step 174 connecting move controls by one, when trampling this front running board 173, this locating pad 172 can be made downwards to be butted on ground, and this front wheel 16 of lifting is liftoff, so namely this locating pad 172 forms an anchor point, make chair 10 cannot line shifting, but can by the rolling action of these rear rollers 15, and centered by this locating pad 172, put the motion that rotates, then when trampling this bumper step 174, this locating pad 172 can be made upwards to depart from ground, this front wheel 16 is declined again land, so recover can the effect of free line shifting for this chair 10 entirety, this rising pedal 181 and 182, this decline pedal to rise or decline use for manipulating this chair cushion 11.

Fig. 1 is the stereoscopic figure of this chair 10, when by the chair cushion 11 in Fig. 1, the chair back 12, to handrail 13, chair pin case 14, rear roller 15, front wheel 16 and front retainer 17 all ignore lose time, as shown in Figure 2,3, will see and have a hydraulic cylinder device 19 to exist with the combination of this rising pedal 181 and this decline pedal 182.This hydraulic cylinder device 19 be before address " support bottom this chair cushion 11 " major part wherein, rise for providing this chair cushion 11 to lift and drive the effect declined, this hydraulic cylinder device 19 is textural includes a pedestal 191, fixed mount is located on the support bottom this chair cushion 11, inside is provided with hydraulic system, and stretches out the rotating shaft 192L that a rotating shaft 192R and being positioned at right side is positioned at left side to two sides; One is fixedly arranged on the cylinder axle 194 that cylinder body on this pedestal 191 top 193 and is inserted in this cylinder body 193 inside, wherein, namely this cylinder axle 194 top is connected with the support bottom this chair cushion 11, can promote this cylinder axle 194 and drive this chair cushion 11 to do the action of rising (stretching out) or declining (retraction) when these rotating shafts 192R and rotating shaft 192L is trampled during difference and deflects down action.

Be as the criterion with Fig. 1, the direction of the coniform pad indication of this chair cushion 11 front end is the front of this chair 10, this position residing for chair back 12 is then the rear of this chair 10, and this rising pedal 181 is positioned at the right side of this chair 10, and this decline pedal 182 is then positioned at the left side of this chair 10; Therefore, in Fig. 2,3, this rotating shaft 192R is the right side being positioned at chair 10, and rotating shaft 192L is then positioned at the left side of chair 10.Refer to shown in Fig. 2,3, the rotating shaft 192R on right side offers one laterally wear and wear groove 1921 in gradually high forward, and this rising pedal 181 central shaft bend the body of rod 1811 tail end of extension, then reducing footpath degree and be formed as a spiral shell section 1812, answering in external zones every being connected with the retaining wall 1813 in opening casket shape; Therefore this rising pedal 181 can be worn by its spiral shell section 1812 and wear groove 1921 into this rotating shaft 192R, and the wall body protecting this rotating shaft 192R is pasted by these retaining walls 1813, then do firm interlocking by lock-connecting piece 1814 (such as pad and nut) and this spiral shell section 1812, this rising pedal 181 is reached with this rotating shaft 192R and is connected.

Therefore, state change as shown in Fig. 4 to Fig. 5, when trampling this rising pedal 181 and deflecting down, deflection action that namely this body of rod 1811 drives this rotating shaft 192R to do to rotate forward forward (namely in figure clockwise) (must one carry be, now the rotating shaft 192L in left side is also driven to do and deflects in the same way), then decontrol after trampling, because of the elastic recoil effect of this pedestal 191 inside, this rotating shaft 192R and this rising pedal 181 all oppositely (namely counterclockwise in figure) deflection return (now the rotating shaft 192L in left side also does reverse deflection) can be made, so this rotating shaft 192R is trampled deflection once, namely hydraulic system in this pedestal 191 send oil once (or continuous) from this cylinder body 193 inner bottom, with by some height (or continuously lifting) of this cylinder axle 194 lifting, therefore under the running of trampling this rotating shaft 192R, namely this cylinder axle 194 top raises gradually, also that is drive this chair cushion 11 to do vertical motion.

Shown in Fig. 2,3, the rotating shaft 192L on the left of this offers one laterally wear wear groove 1922; There is the stack shell 195 of a hollow form, can directly be socketed on this rotating shaft 192L, this stack shell 195 wall body is equipped with one group and wears interlocking hole 1951 corresponding to groove 1922 with this, passed these interlocking holes 1951 by a lock-connecting piece 1952 (such as screw and nut) and worn groove 1922 and do firm interlocking again, this stack shell 195 being reached with this rotating shaft 192L and is connected; An affixed controll block 196 on the front side wall body of this stack shell 195; Shown in Fig. 7, this controll block 196 outer face is formed as a downward interior oblique skew wall 1961.

Refer to shown in Fig. 3, bottom this chair cushion 11, be provided with a support axostylus axostyle 197 parallel with this rotating shaft 192L for the support of the fixing erection of this pedestal 191 is stretched in this rotating shaft 192L front place; This decline pedal 182 central shaft bend extension the body of rod 1821 tail end be installed with the sleeve 1822 that a horizontally set is hollow form, more set firmly one to stretch sliding piece 1823 from an angle to declivity outside it; Separately there is a torsion elastic component 1824, be sheathed on this support axostylus axostyle 197; Then, please refer to Fig. 2,3 and Fig. 6,7 shown in, this decline pedal 182 is directly sheathed on this support axostylus axostyle 197 by its sleeve 1822, then this torsion elastic component 1824 one end is placed on the support of this fixing erection, the other end is then placed in bottom this body of rod 1821, forms the state this body of rod 1821 and this decline pedal 182 held up.

This stack shell 195 and this rotating shaft 192L, and after this decline pedal 182, torsion elastic component 1824 all complete assembling with this support axostylus axostyle 197, see from the left side of chair 10 and look namely as shown in Figure 6,7, when this decline pedal 182 is not trampled, controll block 196 affixed on this stack shell 195 wall body forward, tiltedly stretch towards the back lower place by the sliding piece 1823 of this decline pedal 182.Addressed front, when this rising pedal 181 is subject to trampling and deflects down (making chair cushion 11 edge up), the rotating shaft 192R on right side does the deflection action rotating forward forward (i.e. clockwise direction in Fig. 4,5), the rotating shaft 192L in left side is also driven to do and deflects in the same way simultaneously, therefore namely as shown in Figure 8,9, the rotation (then for counterclockwise in Fig. 8,9) of this rotating shaft 192L can drive this stack shell 195 and controll block 196 all synchronously to do the deflection action rotated forward forward; Now, this decline pedal 182, sleeve 1822, sliding piece 1823 and torsion elastic component 1,824 four is because being neither subject to External Force Acting, therefore it is motionless to be all held in original position; This controll block 196 is done in the process of the deflection action (namely being changed by the state shown in Fig. 6,7 to Fig. 8,9) rotated forward forward, and this controll block 196 can not go to touch (shock) to this sliding piece 1823 completely; Then when decontroling the trampling of this rising pedal 181, because of the elastic recoil effect of this pedestal 191 inside, this rotating shaft 192R and this rising pedal 181 can be made all oppositely to deflect return, and this rotating shaft 192L, stack shell 195 and controll block 196 also all oppositely deflect return (namely getting back to Fig. 6,7 by Fig. 8,9) in company with doing certainly.

Finally, refer to shown in Figure 10,11, when the state that chair cushion 11 has been held high by cylinder axle 194, as long as firmly trample this decline pedal 182 once, this sleeve 1822 and sliding piece 1823 are namely all in company with doing reverse deflection, therefore the controll block 196 that this sliding piece 1823 tail end can promote because upward deflecting action on this stack shell 195 all does oppositely deflection one low-angle together with this rotating shaft 192L, in process, namely the deflection action of this rotating shaft 192L starts the pressure release effect of this hydraulic cylinder device 19 internal hydraulic system instantaneously, makes cylinder axle 194 drive chair cushion 11 to decline slowly.And when decontroling the trampling of this decline pedal 182, because of the elastic recoil of this pedestal 191 inside and the elastic recoil acting in conjunction of this torsion elastic component 1824, make this rotating shaft 192L and this decline pedal 182 all get back to the position of original inactive state.

From illustrating above, the utility model mainly by respectively under trample these rising pedals 181 and decline pedal 182 action go to manipulate this chair cushion 11 and produce the action of rising and declining respectively, because be all the action of trampling downwards, therefore user can complete easily.Labor is known, this rising pedal 181 when being trampled downwards be drive this rotating shaft 192R directly under (forward) deflection to start oil-feed, to make cylinder axle 194 drive chair cushion 11 upwards to rise, the action that this kind directly drives is very known common in the use of hydraulic cylinder device 19; But when this decline pedal 182 is trampled, but be must upward deflect via the sliding piece 1823 on the sleeve 1822 of this decline pedal 182 tail end, the controll block 196 promoted on this stack shell 195 is gone all to do upwards (oppositely) deflection together with this rotating shaft 192L, the pressure release effect of this hydraulic cylinder device 19 internal hydraulic system can be started, drive chair cushion 11 to decline slowly to make cylinder axle 194; Therefore this decline pedal 182 is pushed upwards by the action of trampling and this rotating shaft 192L the action that (oppositely) deflect, indirectly reached with both the controll block 196 on this stack shell 195 by the sliding piece 1823 on this sleeve 1822, this contexture and the use of action then for hydraulic cylinder device 19 thereof were never met.

Claims (4)

1. an elevating adjusting device for chair, supports the support bottom a chair cushion by a hydraulic cylinder device; This hydraulic cylinder device includes a pedestal, and be set up on the support bottom this chair cushion, inside is provided with hydraulic system, and stretches out the rotating shaft that a rotating shaft and being positioned at right side is positioned at left side to two sides; The one cylinder body and be fixedly arranged on this pedestal top is inserted in the cylinder axle of this cylinder body inside, and this cylinder axle top is connected with the support bottom this chair cushion; This hydraulic cylinder device is connected with a rising pedal and a decline pedal, and the body of rod tail end that the bending of this rising pedal centre axle extends engages with the rotating shaft on the right side of this; It is characterized in that: the stack shell rotating shaft on the left of this being socketed joint one hollow form, an affixed controll block on wall body on front side of this stack shell, this controll block outer face is formed as a downward interior oblique skew wall; The body of rod tail end that the bending of this decline pedal centre axle extends sets firmly the sleeve that a horizontally set is hollow form, more sets firmly one to stretch sliding piece from an angle to declivity outside it; Rotating shaft front place on support bottom this chair cushion on the left of this stretch be provided with one with this on the left of the support axostylus axostyle of shaft parallel; Have a torsion elastic component to be first sheathed on this support axostylus axostyle, then the sleeve of this decline pedal tail end is sheathed on this support axostylus axostyle again; This torsion elastic component one end is placed on this support, and the other end then holds up the body of rod of this decline pedal.

2. the elevating adjusting device of chair according to claim 1, is characterized in that: when this rising pedal is subject to trampling, the deflection action rotated forward forward is done in the rotating shaft on the right side of this, and the hydraulic system started in this pedestal makes this cylinder axle raise.

3. the elevating adjusting device of chair according to claim 1, it is characterized in that: when the deflection action rotated forward forward is done in the rotating shaft on the right side of this, rotating shaft on the left of this is together with this stack shell and controll block all in company with doing the deflection action rotated forward forward, and the sliding piece of the body of rod tail end that this decline pedal centre axle extends is then static.

4. the elevating adjusting device of chair according to claim 1, it is characterized in that: when this decline pedal is subject to trampling, the sleeve of the body of rod tail end that this decline pedal centre axle extends and sliding piece are in company with deflection, the controll block of this sliding piece tail end namely upwardly on this stack shell does reverse deflection together with the rotating shaft on the left of this, and the hydraulic system started in this pedestal makes this cylinder axle decline.