CN105232248A - Combined armrest transfer chair - Google Patents

Abstract

A combined armrest transfer chair is mainly composed of a chair frame, balance frames, armrest sets, an armrest lifting device, an armrest propelling device and a control system. The chair frame is composed of a footstock lever, lifting columns, foot frames, a pushing hand, horizontal blocks, stop bars, a front frame, a back frame, a pushing rod and wheel frames. A backrest and a footrest are of a same structure and are symmetrically hinged to the two ends of a seat frame. The gravity center of an arm bed can be regulated by moving the wheel frames. The balance frames are installed on cross frames of the foot frames and used for keeping the arm bed to be not inclined laterally when a human body is transferred. The armrest lifting device is arranged under the bed surface of the arm bed, so that the bed surface of the arm bed is flat and the edges of the arm bed are neat. When a person is transferred to the armchair from a bed, the armchair is changed into the arm bed to be close to the bed, two armrests of each armrest set are alternately inserted into gaps between the person and the bed, go up while the human body is lifted to be immovable, go down and advance until the armrests are inserted into the positions under the human body, and then the person is lifted onto the arm bed. When the person is transferred to the bed, the armrest sets upwards lift the human body to the position over the bed, the two armrests of each armrest set alternately go down and retreat until the person is placed on the bed. Accordingly, a patient can be automatically transferred between the bed and the armchair.

Description

Combination holds up arm to shift chair

Technical field

The present invention relates to a kind of seat, particularly combination holds up arm to shift chair.

Background technology

Existing seat, for the people that can move, can take chair voluntarily or leave chair, can be seated reading, pushes outdoor activities voluntarily or by people.But for obtaining the people of disease, losing the people of the ability of moving, sit for a moment on chair, just must one to two people assist in.Especially the people of body weight, held up seat by a nurse or family female nursing staff from sick bed and hold up from seat and go to bed, require great effort all very much, patient also feels inconvenient.Have a kind of arm type to shift chair, number of patent application: 2015104734780 is the arms copying people, and design two machineries are held up arm to form one and held up arm group side by side.An arm holding up arm group to be equivalent to people.Hold up arm group be arranged on transfer chair mounting, lean against with foot top.Transfer chair can become holds up bed.When human body will be transferred on transfer chair from sick bed, first transfer chair is become straight and hold up bed, dock with sick bed, each arm group of holding up first holds up arm to inject gap between human body and bed surface with one, on lift expand gap, another root holds up arm to inject in the gap expanded at once, subsequently two hold up arm alternately lift human body motionless, decline, advance, until be inserted in completely between human body and bed surface.Hold up arm to lift human body subsequently, be recovered to and hold up on bed, hold up bed to become transfer chair, can push away away.Human body can be completed from bed to the transfer of transfer chair, also can complete the transfer from transfer chair to bed.But each root holds up arm to have a set of independently lowering or hoisting gear and propulsion plant.Lowering or hoisting gear, propulsion plant are arranged in sideslip road, and sideslip road is arranged on above transfer chair, particularly shift after chair becomes and hold up bed, and lowering or hoisting gear and propulsion plant to be held up on bed in plane.Propulsion plant by founding balladeur train, vertical slide block, hoist cylinder form.Vertical balladeur train, vertical slide block, hoist cylinder exceed holds up 20 to 30 centimeters, a plane, when patient is turned lift to hold up on bed time, lowering or hoisting gear and propulsion plant also will rest in holds up more than 20 centimeter of position outside a bedside.Outside bed side outstanding more than 20 centimeters, this just causes holds up bed walking or be elevated in elevator in the crowded corridor of personnel, necessarily requires others to dodge, very inconvenient.

Arm type transfer chair seat frame does not install balancing stand and wheel carrier below, after it becomes and holds up bed, when the sick bed holding up arm to reach side docking lifts human body, holds up bed not have balancing stand to support below, holds up bed will topple over to sick bed direction.Need operator firmly to pin and hold up an another side just can complete patient transfer process.And when shifting chair and holding up and changing between bed, do not have wheel carrier to balance center of gravity, patient is also easy to be toppled over to leaning against direction.Make troubles to operation.

Summary of the invention

The object of the present invention is to provide a kind of deficiency overcoming arm type transfer chair, solve when shifting after chair becomes and hold up bed, lowering or hoisting gear not being given prominence to holding up above bed, also not giving prominence to and holding up outside a side, and can prevent the combination of the problem of holding up bed to topple over from holding up arm to shift chair.It is that one conveniently shifts chair, hereinafter referred to as armchair that combination holds up arm to shift chair.

The present invention be achieved in that combination hold up arm shift chair, primarily of chair frame, balancing stand, hold up arm group, hold up arm elevator apparatus, hold up arm propulsion plant and control system composition.Chair frame is made up of treadle, lifting column, foot rest, pushing hands, horizontal block, gear hurdle, front bezel, rear frame, push rod, wheel carrier.Chair frame is divided into foot to lean on, mounting, lean against three joints.Lean against identical by structure with foot, symmetry is hinged at the two ends of mounting.Armchair can become holds up bed.Holding up the length direction of bed, frame front bezel, the frame of another side is on rear frame.The width of bed is held up to be fixedly connected with horizontal block.Mounting is provided with lifting column and foot rest below.The following underframe of chair frame is arranged in the chute of wheel carrier.Foot rest is provided with locking device.Unclamp locking device, underframe can slide in wheel carrier, is used for adjustment to hold up a center of gravity.Balancing stand is arranged on the horizontal frame of foot rest below chair frame.Balancing stand leads shell by the gimbal lever, glue head, the gimbal lever, reel, stay cord, stay cord button, electric magnet, briquetting, extension spring form.Arm group is held up to hold up arm to form by two for one.Each root holds up arm to have a set of arm elevator apparatus and hold up arm propulsion plant independently held up.Holding up advance and the retrogressing of arm, completing by holding up arm propulsion plant.The rise and fall of arm are held up to complete by holding up arm elevator apparatus.Hold up arm elevator apparatus to be arranged on and hold up a bed surface following.Arm propulsion plant is held up to form by by sideslip road, smooth block, sprocket wheel, chain, electric machine structure and form two kinds of structures by sideslip road, smooth block, reel, stay cord, electric machine structure.Here the structure of holding up arm propulsion plant to be made up of sideslip road, smooth block, sprocket wheel, chain, motor is mainly described.Sideslip road is arranged on to be held up on the forward and backward frame of bed.Be an inverted T-slot mouth above sideslip road, below is connected with chain shell, and T-slot mouth is connected with chain shell.There is the slideway matched with sideslip road on smooth block both sides.Smooth block is arranged in sideslip road, and smooth block is connected with holding up arm rear end, drives and holds up arm movable in sideslip road.At close forward and backward scuncheon, two, sideslip road is all fixed with two pieces of supports downwards below.Between two pieces of supports, sprocket wheel is installed, one piece of side face is provided with motor, drive sprocket.Two sprocket wheels are arranged on sideslip road below, near forward and backward scuncheon face.The chain of two sprocket wheel tops passes the following sprocket housing in sideslip road.Smooth block is fixing downwards below gives prominence to a gear tooth, and through the notch in the middle of sideslip road, the chain being inserted in the chain in sprocket wheel upper chain hub is smashed, and is fixed on this chain.The positive and negative rotation of sprocket wheel, namely drives gear tooth, smooth block, holds up arm to advance and retreat.Between sprocket wheel and close forward and backward frame, be provided with a trundle, roller is against forward and backward scuncheon face, has appropriate gap.Roller support is fixed on to be clamped on two pieces of supports of sprocket wheel.Roller effect makes sideslip road can not forward and backward movement, can move up and down.

Arm elevator apparatus is held up to have hydraulic cylinder lifting and motor to be elevated two kinds of structures.With hydraulic cylinder lifting, be respectively be connected and fixed an assistant support at forward and backward scuncheon, respectively on support fix a hydraulic cylinder, make hydraulic cylinder piston rod be hinged at two pieces of pedestal lower end on sprocket wheel both sides.Extend while two hydraulic cylinder piston rods and shorten, namely controlling the rise and fall simultaneously of two, sideslip road by sprocket wheel both sides support, make smooth block and hold up arm to be also elevated simultaneously.What be elevated with motor holds up arm elevator apparatus, is made up of motor, screw mandrel, nut.

When human body will be transferred on armchair, first unclamp the locking device on foot rest from the bed, regulate armchair center of gravity, locking device locks.Armchair is become straight and holds up bed, hold together to dock with bed mooring, stretch out balancing stand.Each hold up two of arm group hold up arm alternately inject gap between human body and bed surface, on lift expand gap, alternately lift human body motionless, decline, advance, arm is held up to insert human body until whole following, i.e. liftable human body, regains to be placed on and holds up on bed, become hold up bed into armchair.When human body will be transferred to another appointment bed from armchair, first unclamp the locking device on foot rest, regulate armchair center of gravity, locking device locks.Armchair is become and holds up bed, bed being held up to hold together with specifying bed mooring, stretching out balancing stand.Hold up arm group that human body is lifted and move to suitable height above appointment bed, each holds up the arm of holding up of arm group alternately to lift human body, decline, retrogressing, specifies on bed until be placed on by human body.

Combination holds up arm transfer chair chair frame to be divided into three joints, and middle one saves frame of drawing well.Crying of mounting one end leans against, and the foot that cries of the mounting other end leans on.Lean against with foot by being hinged at the two ends of mounting respectively with pivot pin.Lean against between mounting, foot by with mounting between reclining apparatus is installed.The frame on mounting both sides lifting column and foot rest have been installed.There is wheel wheel carrier lower end.Lifting column is arranged in the vertical pipe box of foot rest.Lifting column can be elevated bed surface height.Rotate reclining apparatus to make to lean against and upwards rotate an angle, general chair lean against part.Rotating reclining apparatus makes foot by rotating an angle, namely becomes armchair.In like manner, leaning against, foot is concordant with mounting by turning to, and namely armchair becomes and hold up bed.

Mounting, lean against, foot by having identical forward and backward frame and horizontal block, in order to fixing respective rectangular frame.Lean against in the front bezel of outer end, rear frame and rectangular tube that is extending, that shorten is installed, hereinafter referred to as push rod.Two push rod external end heads are connected with pushing hands, in order to promote to hold up bed, armchair.Foot leans on and leans against and can mutually convert.Lean against, foot by can change according to the orientation of transporting patient, sick bed, lean against to become and lean on as foot, as long as pushing hands direction is reversed upwards, and fix, can treadle be become.

Combination holds up arm to shift the mechanical arm of chair holding up arm.Arm skeleton is held up to be made up of metal material.Plane on arm is held up to cover slightly soft plastics or the rubber layer of layer.Hold up arm front end to be wedge-like, wedge-like front end is solid, and wedge mouth is the root face of a millimeter, makes by soft plastic material, smooth surface, contact people physical ability to people a kind of with arm, point the same affine sensation.

Armchair, in transporting patient process, holds up arm to inject the following overall process of human body, and after human body is lifted, is recovered to and holds up on bed, and declines and be placed on the overall process of holding up on bed, is all automatic control.As the case may be, some process in automatically controlling can switch to Non-follow control.When human body is transferred to bed from armchair, hold up arm to lift human body, the overall process that human body is placed in bed is all automatic control.

Mounting, lean against, on framework that foot leans on, be all fixed with horizontal block, effect is: the shape of fixed frame on the one hand, makes it indeformable; Be on the other hand lift effect in the support that kept at a certain distance away of the length direction of human body, as a kind of chair keeps at a certain distance away, to be fixed with batten the same.

Beneficial effect of the present invention, the advantage comparing arm type armchair is: 1, hold up arm elevator apparatus be arranged on armchair become hold up bed after hold up a bed surface following, make the not projecting bevy of bed surface, bed surface is smooth.Further, hold up a both sides and armchair both sides also neat, no longer to the outstanding bevy of side, in the corridor that personnel are crowded or walk all very convenient in elevator.2, lowering or hoisting gear is fixedly mounted on and holds up the forward and backward scuncheon of bed, no longer moves at bed width, makes the high-pressure oil pipe of hydraulic cylinder not remake folding and unfolding and moves, and the folding and unfolding of high-pressure oil pipe to move be very troublesome.High-pressure oil pipe can fixedly mount below holding up bed, very convenient.3, below foot rest, be provided with balancing stand and wheel carrier, make to hold up bed from transporting patient on sick bed, hold up bed no longer forwards to topple over, can also regulate and hold up a center of gravity.Great convenience is provided to operator.

Accompanying drawing explanation

Fig. 1 is that combination holds up arm to shift chair overall structure figure.

Fig. 2 is that combination is held up arm to shift chair to become and hold up bed structure figure.

Fig. 3 holds up arm elevator apparatus and holds up arm propulsion plant axonometric chart.

Fig. 4 holds up arm elevator apparatus and holds up arm propulsion plant structure chart.

Fig. 5 holds up arm elevator apparatus to be motor lifting structure figure.

Fig. 6 holds up arm operation principle key diagram.

Fig. 7 is balancing stand structure and fundamental diagram.

Fig. 8 holds up arm to lift human body from sick bed just regaining and hold up a procedure chart.

Fig. 9 holds up arm propulsion plant reel, dragline-transmission structure chart.

In accompanying drawing: treadle 1, smooth block 2, sideslip road 3, horizontal block 4, rear frame 5, pivot pin 6, hydraulic cylinder 7, support 8, gear hurdle 9, hold up arm 10, front bezel 11, pushing hands 12, push rod 13, wheel 14, the horizontal frame 15 of foot rest, lifting column 16, foot rest 17, cabinet 18, underframe 19, the gimbal lever leads shell 20, wheel carrier 21, locking device 22, sprocket wheel 23, chain shell 24, roller 25, chain 26, motor 27, piston rod 28, gear tooth 29, nut 30, screw mandrel 31, extension spring 32, electric magnet 33, briquetting 34, glue head 35, the gimbal lever 36, reel 37, stay cord 38, stay cord button 39, sick bed 40, human body 41, pulley 42.

Detailed description of the invention

In Fig. 1, be that combination holds up arm to shift chair overall structure figure.Mounting is provided with lifting column 16 below, and lifting column 16 is arranged in the standpipe of foot rest 17, can be elevated.Cabinet 18 is arranged on the following underframe of foot rest 17 19.The following underframe 19 of chair frame is arranged in the chute of wheel carrier 21.The slideway corresponding with the chute of wheel carrier 21 is provided with below underframe.Foot rest 17 is provided with locking device 22.Unclamp locking device, underframe 19 can slide in wheel carrier 21, is used for adjustment to hold up a center of gravity.Wheel 14 is had below wheel carrier.Balancing stand is arranged on the horizontal frame 15 of foot rest below chair frame.Mounting, lean against, the framework of foot by being all made up of front bezel 11, rear frame 5, horizontal block 4.The forward and backward frame of mounting has installed gear hurdle 9, gear hurdle 9 can switching following to forward and backward frame.The width of bed is held up to be fixedly connected with horizontal block 4.Lean against and be hinged on the forward and backward frame on the right of mounting with pivot pin 6, foot rest pivot pin 6 is hinged on the forward and backward frame on the mounting left side.It is identical for leaning against the structure leaned on foot, symmetrical with mounting.Lean against between mounting, foot leans on all has installed reclining apparatus between mounting.Reclining apparatus is prior art, has various structures, clear in order to drawing primary structure, and reclining apparatus does not draw.Lean against outer end and have push rod 13, push rod 13 outer end is connected with pushing hands 12, can switching lock downwards, the pushing hands of armchair.Turn on locking, pushing hands upwards pulled, then lock, the treadle 1 on left side foot limit on the lower.According to the needs in transfer process orientation, lean against and can become foot and lean on, foot leans against by becoming.The right in Fig. 1 is leaned against angle modulation rotate downwards, left side foot rotates upwards by angle modulation, and reverse switching pushing hands also locks, and namely former leaning against become foot and lean on.

Fig. 2 is that armchair becomes and holds up bed structure figure.Adjustment backrest angle and foot are by angle, and make to lean against with foot by all concordant with mounting, armchair just becomes and holds up bed.Push rod 13 is arranged in forward and backward frame, and push rod can stretch in forward and backward frame, is used for adjustment to hold up a length.Unclamp locking device, underframe 19 slides in wheel carrier 21, is used for adjustment to hold up a center of gravity.That wheel carrier moves right situation in Fig. 2.

Arm group is held up to hold up arm to form by two for one.Each root holds up arm to have a set of arm elevator apparatus and hold up arm propulsion plant independently held up.Holding up advance and the retrogressing of arm, completing by holding up arm propulsion plant.The rise and fall of arm are held up to complete by holding up arm elevator apparatus.Composition graphs 3, Fig. 4, Fig. 5, concrete describing is held up arm elevator apparatus and holds up arm propulsion plant structure.

Fig. 3 holds up arm elevator apparatus and holds up arm propulsion plant axonometric chart.Fig. 4 holds up arm elevator apparatus and holds up arm propulsion plant structure chart.Fig. 5 holds up arm elevator apparatus to be motor lifting structure figure.The kind of drive of arm propulsion plant of holding up in Fig. 3, Fig. 4, Fig. 5 is sprocket wheel, chain structure, is reel, structure of tow line in Fig. 9.

In Fig. 3, conveniently observe, the support 8 for fixative cylinder pressure 7 on rear frame 5 does not draw.Arm propulsion plant is held up to be made up of sideslip road 3, smooth block 2, sprocket wheel 23, chain 26, motor 27.Sideslip road 3 is arranged on front bezel 11, rear frame 5.Be an inverted T-slot mouth above sideslip road 3, below is connected with chain shell 24, and T-slot mouth is connected with chain shell.There is the slideway matched with sideslip road 3 on smooth block 2 both sides.Smooth block 2 is arranged in sideslip road 3, and smooth block 2 is connected with holding up arm 10 rear end, drives and holds up arm movable in sideslip road.At close forward and backward scuncheon, two, sideslip road 3 is all fixed with two pieces of supports 8 downwards below.Between two pieces of supports 8, sprocket wheel 23 is installed, one piece of side face is provided with motor 27, drive sprocket.Two sprocket wheel 23 chains 26 form a loop.The chain 26 of two sprocket wheel tops passes the following sprocket housing 22 in sideslip road 3.Smooth block 2 is fixing downwards below gives prominence to a gear tooth 29, and through the notch in the middle of sideslip road, the chain being inserted in the chain in sprocket wheel upper chain hub is smashed, and is fixed on this chain.The positive and negative rotation of sprocket wheel, namely drives gear tooth, smooth block, holds up arm to advance and retreat.Between sprocket wheel and close forward and backward frame, be provided with a little roller 25, roller 25 is against forward and backward scuncheon face, has appropriate gap.Roller support 8 is fixed on to be clamped on two pieces of supports 8 of sprocket wheel.Roller effect makes sideslip road can not forward and backward movement, can move up and down.

Hold up arm elevator apparatus to be arranged on and hold up a bed surface following.Arm elevator apparatus is held up to have hydraulic cylinder lifting and motor to be elevated two kinds of structures.Fig. 4 holds up arm elevator apparatus hydraulic cylinder structure, and Fig. 5 holds up arm elevator apparatus motor lifting structure.With hydraulic cylinder lifting in Fig. 4, be respectively be connected and fixed an assistant support 8 at forward and backward scuncheon, respectively on support fix a hydraulic cylinder 7, make the piston rod 28 of hydraulic cylinder 7 be hinged at two pieces of support 8 lower ends on sprocket wheel 23 both sides.Extend while two hydraulic cylinder piston rods and shorten, namely controlling the rise and fall simultaneously of two, sideslip road by sprocket wheel both sides support, make smooth block and hold up arm to be also elevated simultaneously.What be elevated with motor in Fig. 5 holds up arm elevator apparatus, is made up of motor 27, screw mandrel 31, nut 30.Motor 27 upper end is connected with the two pieces of supports clamping sprocket wheel, motor 27 lower end is connected with screw mandrel, respectively on the support 8 that forward and backward scuncheon is fixing fix a nut 30, screw mandrel 31 is through nut, because nut is fixed on the support in forward and backward frame, driven by motor screw mandrel rotates, and nut is motionless, screw mandrel and motor can only be made to move up and down, namely drive sideslip road, smooth block, hold up arm rise and fall.

Fig. 6 holds up arm operation principle key diagram.Here hold up arm group to carry out describing with two of holding up arm 10 to form, other related fittings do not draw.

Hold up the whole front portion of arm insert human body below and between bed surface before process be: for sake of convenience, from bottom to top holding up arm by No. 1, No. 2 numberings.Hold up arm 10 motionless for No. 2.Hold up arm 10 to advance for No. 1, in the gap holding up arm front wedge mouth to insert between human body and bed surface, hold up on arm and lift, expand gap between human body and bed surface.Hold up arm to advance for No. 2, front wedge mouth inserts in the gap expanded, and holds up on arm and lifts, lift human body motionless at once.Hold up arm to decline for No. 1, advance, above lift.It is whole that to hold up arm front portion all to insert human body following.Above process can operate with Non-follow control.Process after holding up arm whole front portion insertion human body is below: operator can press autokeyer, and the overall process of below holding up arm to insert human body following is all automatic control operation.Hold up arm alternately to decline respectively, advance, rise to setpoint distance, until hold up arm inserted through between human body and bed surface for No. 1 subsequently, No. 2.

Hold up the advance of arm to carry out after decline, do not contact with human body, there is no sliding friction with human body.

Hold up the control system of arm to have manual control part and automatic control section, according to practical situation, some process of automatic control section can switch to Non-follow control.Beginning process one to three minor tick holding up arm to insert human body inserts, available Non-follow control.Hold up the list group of arm group to insert one by one, or several groups are inserted together, also use Non-follow control.When from the bed in armchair transporting patient process, when hold up arm front portion enter human body below after, hold up arm all to enter the automatic control operation of crack approach under human body.When from armchair in sick bed transporting patient process, respectively hold up arm group to lift patient and to be placed on above bed after suitable height and position, hold up arm to exit the overall process of human body, use automatic control operation.

Fig. 7 is balancing stand structure and fundamental diagram.Balancing stand leads shell 20 by the gimbal lever 36, glue head 35, the gimbal lever, reel 37, stay cord 38, stay cord button 39, electric magnet 33, briquetting 34, extension spring 32 form.Balancing stand is arranged on the horizontal frame of foot rest below chair frame, vertical with holding up a length direction.The gimbal lever leads shell 20 pivot pin 6 and is fixed on foot rest horizontal frame 15 rear portion.The gimbal lever 36 is arranged on the gimbal lever and leads in shell 20, can stretch out and withdrawal.Gimbal lever termination is connected with glue head 35.Extension spring 32 one end is fixed on the horizontal frame 15 of foot rest, and the other end is fixed on the gimbal lever and leads on shell.The horizontal frame of foot rest is provided with electric magnet, for controlling the lifting of balancing stand.Electric magnet 33 one end is fixed on the horizontal frame of foot rest, and the other end and briquetting 34 one end are hinged.Briquetting 34 pivot pin is fixed on the horizontal frame 15 of foot rest, can rotate.Extension spring 32 one end is fixed on the horizontal frame of foot rest, and one end is connected with briquetting 34.The gimbal lever leads shell rear end and is provided with motor 27 and reel 37, and the gimbal lever leads that shell is anterior is correspondingly provided with another reel 37, and stay cord 38 is wrapped on two reels, composition loop.Gimbal lever's back segment is fixed with stay cord button 39, and stay cord button leads the corresponding notch offered on shell through the gimbal lever, is connected and fixed with stay cord.The dynamic reel that drives of motor positive and inverse rotates, and drives stay cord to move, makes stay cord button do corresponding movement, namely drive the gimbal lever to stretch out the gimbal lever and lead shell or withdrawal.When needs transfer human body, hold up bed mooring to hold together sick bed, electric machine rotation, the gimbal lever stretches out, and electric magnet is energized, and tension and compression block is pushed down the gimbal lever and led shell, and glue head lands.Finish using, electric magnet power-off, briquetting inhour under extension spring effect is rotated, and get out of the way the gimbal lever and lead shell, the gimbal lever leads on shell and lifts, and glue head raises, and motor reversal, the gimbal lever is recovered to the gimbal lever and leads in shell.

Fig. 8 holds up arm to lift human body from sick bed just regaining and hold up a procedure chart.Arm of holding up according to front injects the following process of human body, and operator's Non-follow control operates, and human necks, shoulders part can operate separately, and all the other several positions can operate simultaneously to be injected below human body 41.Bed surface of holding up arm to put down, but not press face, put down the natural gap place moved between human body and bed surface, suitably inject.Then hold up on arm and lift expansion gap, another holds up arm to inject in the gap expanded at once, inserts darker.Like this, hold up arm alternately to inject for two, whole to hold up arm front end all to insert human body following, presses autokeyer, two hold up arm alternately on lift human body motionless, decline, advance, rise, whole arm of holding up is inserted into below human body.Hold up arm automatic synchronization to rise, lift human body, be automatically withdrawn into and hold up after above bed, drop on forward and backward frame under sideslip road for each group.Human body be namely placed on by horizontal block, hold up arm to form bed surface on.Leaning against with foot by partial adjustment angle to such as Fig. 1 position, armchair.

Human body is transferred on sick bed 40 from armchair, first unclamps the locking device on foot rest, regulate armchair center of gravity, locking device locks, and armchair is adjusted to and holds up bed, human body lies in be held up on bed.To dock with sick bed holding up bed and draw close, stretch out balancing stand.Arm group is respectively held up synchronously to lift suitable height above human motion to sick bed.Respectively hold up arm group hold up arm alternately lift human body motionless, decline, retreat, until all exit below human body, human body is placed on one's sick bed.

In Fig. 9, be hold up arm propulsion plant reel, dragline-transmission structure chart.Hold up arm propulsion plant structure with reference in Fig. 4, sprocket wheel, chain reel 37, stay cord 38 are replaced, and the gear tooth stay cord button 39 below smooth block is replaced.Stay cord 38 above reel is connected and fixed with stay cord button 39.Sprocket wheel near front bezel becomes pulley 42, and stay cord 38 is wound around two circles on reel, then through pulley.Stay cord forms loop between reel and pulley.Electric machine rotation drives reel to rotate, and namely stay cord drives smooth block and hold up arm to advance or retreat.

Claims (5)

1. combination hold up arm shift chair, primarily of chair frame, balancing stand, hold up arm group, hold up arm elevator apparatus, hold up arm propulsion plant and control system composition, it is characterized in that:

(1), balancing stand is arranged on the horizontal frame of foot rest below chair frame;

(2), arm group is held up to hold up arm to form by two for one;

(3), armchair can become and holds up bed;

(4), holding up arm elevator apparatus to be arranged on holds up a bed surface following;

(5) arm propulsion plant, is held up to form by by sideslip road, smooth block, sprocket wheel, chain, electric machine structure and form two kinds of structures by sideslip road, smooth block, reel, stay cord, electric machine structure;

(6), sideslip road is arranged on and holds up on the forward and backward frame of bed;

(7), smooth block is arranged in sideslip road, and smooth block is connected with holding up arm rear end;

(8) arm elevator apparatus, is held up to have hydraulic cylinder lifting and motor to be elevated two kinds of structures;

(9) underframe that, chair frame is following is arranged in the chute of wheel carrier.

2. combination according to claim 1 holds up arm to shift chair, it is characterized in that: each root holds up arm to have a set of arm elevator apparatus and hold up arm propulsion plant independently held up.

3. combination according to claim 1 holds up arm to shift chair, it is characterized in that: what be elevated with motor holds up arm elevator apparatus, is made up of motor, screw mandrel, nut.

4. combination according to claim 1 holds up arm to shift chair, it is characterized in that: balancing stand leads shell by the gimbal lever, glue head, the gimbal lever, reel, stay cord, stay cord button, electric magnet, briquetting, extension spring form.

5. combination according to claim 1 holds up arm to shift chair, it is characterized in that: foot rest is provided with locking device.