CN208770183U - A kind of multifunctional wheelchair - Google Patents

Abstract

The utility model discloses a kind of multifunctional wheelchairs, and the pedestal including having wheel, further includes the adjustable lifting device being connected to above pedestal；Adjustable lifting device includes seat plate, with the hinged backrest in seat plate rear end, the second line of a couplet fishplate bar connecting with pedestal, and the support construction being articulated between seat plate and second line of a couplet fishplate bar；Support construction includes front support rod component, back support rod component；Adjustable lifting device further includes the driving mechanism for driving support construction rotation and/or for driving seat plate to go up and down, driving mechanism generates rotary motion or linear motion, so that the parallelogram mechanism that seat plate, front support rod component, second line of a couplet fishplate bar and back support rod component are formed is in unfolded state or receiving state.Because of the structure type cooperated using pedestal and adjustable lifting device, height, the angle of wheelchair main body are adjustable, have more wide applicability, suitable for the lathe bed of various height, and meet and lie low, Zuo Li, movement, receive a variety of use demands such as folded.

Description

A kind of multifunctional wheelchair

Technical field

The utility model relates to medical nursing equipment more particularly to it is a kind of for long crouch bed person or can not autonomic activities disease The multifunctional wheelchair that people uses.

Background technique

Currently, having a single function for wheelchair designed by long-term bed or handicapped person, it is only able to satisfy user's utilization The parts use demands such as wheelchair movement, and because structure fixation can not change, during user moves to wheelchair from the bed, often It needs more people while carrying out lift to embrace, be caused stress to families of patients and nurse, time-consuming and laborious and user is simultaneously uncomfortable, several families Belong to or nurse nurse treatment simultaneously and causes huge economic pressures to family, therefore needs a full-featured, flexible structure, And reduce the multifunctional wheelchair of ancillary staff's number.

Utility model content

The purpose of the utility model is to overcome the defects of the prior art, provide a kind of multifunctional wheelchair.

To achieve the above object, the utility model uses following technical scheme:

A kind of multifunctional wheelchair, the pedestal including having wheel, further includes the adjustable liter being connected in above the pedestal Falling unit；The adjustable lifting device includes seat plate, with the hinged backrest in seat plate rear end, the lower link coupled with pedestal Plate, and the support construction being articulated between seat plate and second line of a couplet fishplate bar；The support construction includes front support rod component, rear support Bar assembly；Adjustable lifting device further includes the driving machine for driving support construction rotation and/or for driving seat plate to go up and down Structure, the driving mechanism generates rotary motion or linear motion, so that seat plate, front support rod component, second line of a couplet fishplate bar and rear support The parallelogram mechanism that bar assembly is formed is in unfolded state or receiving state.

Its further technical solution are as follows: the upper backup pad of the pedestal is equipped with sliding slot, and the lower section of the second line of a couplet fishplate bar is equipped with The pulley being in sliding fit with the sliding chute, to constitute, the sliding between adjustable lifting device and pedestal is removable to be coupled；Alternatively, described Second line of a couplet fishplate bar be the pedestal upper backup pad, to be integrally formed formula structure；Or the second line of a couplet fishplate bar and the bottom The upper backup pad that seat is equipped with is fixedly connected.

Its further technical solution are as follows: the removable connection of the sliding uses sliding slot locking structure, specifically includes and is set to Each pair block, two sliding slots, two buffers, two closing pieces of the front and back of pedestal；Two closing pieces pass through the upper surface of pedestal plate The top for being connected in unlock frame is extended downwardly, unlock frame is slidably connected by guide rod on the lower section of the upper surface of pedestal plate, guide rod It is arranged with the self-locking spring being only butted below unlock frame；Block stops the fixation for supporting the second line of a couplet fishplate bar lower surface of adjustable lifting device Protrusion.

Its further technical solution are as follows: the adjustable lifting device further include: hinged with the front end of the seat plate Front apron；Hinge is set to the preceding handrail of the front center of the seat plate；Neckpillow set on the backrest outer end；The front support rod Component includes left front support rod and right anterior branch strut, and the back support rod component includes left back support rod and right back support rod.

Its further technical solution are as follows: the center of the seat plate is equipped with defecation through-hole；It is equipped with below the seat plate and is located at row Just the elastic frame-type bracket below through-hole, with resilient support waste receptacle.

Its further technical solution are as follows: the driving mechanism is the motor with deceleration mechanism；The deceleration mechanism is set There is output shaft and any one rotating shaft transmission couples with front support rod component or back support rod component；

Alternatively, the driving mechanism is the hand assistor lever for generating rotary power, the front support rod component or rear branch Any one shaft outer end of strut component is equipped with torsion connection part, the hand assistor lever and torsion connection part driving coupling；

Or the driving mechanism is any set on second line of a couplet fishplate bar and seat plate, front support rod component, back support rod component Straight line power mechanism between person, the straight line power mechanism are electric putter, cylinder, oil cylinder or ball-screw transmission mechanism；

Or the driving mechanism is the air bag between second line of a couplet fishplate bar and seat plate, and couple with air bag gas circuit Air pump；

Or the driving mechanism is the magnetic force mechanism between second line of a couplet fishplate bar and seat plate, the magnetic force mechanism It is electrical including the lower coil being fixed on above second line of a couplet fishplate bar and the coil being fixed below seat plate, and with coil, lower coil The driving circuit of connection；The coil and lower coil generate magnetic field at the same level, and then generate the repulsive force that seat plate is raised above.

Its further technical solution are as follows: the chassis left side and/or right side is hinged with infusion support, the infusion branch Frame is axial length adjustable type rod-like structure.

Its further technical solution are as follows: the pedestal connection has supporting pole rack, and the supporting pole rack is door-shaped frame structure, Including left side bar, the right-hand rod coupled with the left rear side of pedestal, right lateral side, and what is coupled with left side bar, right side rod rear end horizontal push away Bar；When the backrest and seat plate are in 180 degree unfolded state, the transverse direction that the rear back side that the horizontal push rod is connected in backrest is equipped with is blocked In slot.

Its further technical solution are as follows: the two sides of the pedestal are hinged with square handrail, and the square handrail is forward It is receiving state when being rotated by 90 °.

Its further technical solution are as follows: the socket for external desktop is equipped at the top of the adjustable armrest.

Its further technical solution are as follows: the pan frontward end is equipped with foot pedal.

Compared with prior art the utility model has the advantages that

A kind of multifunctional wheelchair of the utility model has following remarkable advantage compared to traditional push chairs:

The utility model is because of the structure type using pedestal and the cooperation of adjustable lifting device, the height of wheelchair main body, angle Degree is adjustable, has more wide applicability, suitable for the lathe bed of various height, and meets and lies low, sitting, movement, receipts A variety of use demands such as folded；Because using dismountable structure is slided, Convenient wheelchair main body and pedestal are used separately, and weight is lighter, The physical strength expenditure of nurse and families of patients is reduced, and in the case where mobile working state applies less, multiple wheelchair main bodys A pedestal can be shared, expense expenditure is reduced；Because adjustable lifting device further include center be equipped with defecation through-hole seat plate, be used for It supports the front apron of lower leg portion, help the neckpillow of the preceding handrail and supporting head part that lean on for user, have while increasing comfort level There is higher safety；Because that can use a variety of power-driven mechanisms, manufacturer can be according to different costs and production emphasis Carry out flexible choice；Pedestal is additionally provided with supporting pole rack for pushing wheelchair, is used to support user's ancon handrail, for placing article External desktop and be used to support the foot pedal of foot, it is full-featured, it is durable.

In order to be more clearly understood that the above-mentioned purpose, characteristics and advantages of the utility model, with reference to the accompanying drawing and have Body embodiment is described in further detail the utility model.

Detailed description of the invention

Fig. 1 is that the multifunctional wheelchair specific embodiment of the utility model receives the structure chart of overlapping state；

Fig. 2 is the structure chart (state of lying down) of multifunctional wheelchair specific embodiment unfolded state shown in FIG. 1；

Fig. 3 is the structure chart of multifunctional wheelchair specific embodiment unfolded state shown in FIG. 1 (sit up state)；

Fig. 4 is the side view of Fig. 2；

Fig. 5 is the base portion component of the utility model multifunctional wheelchair shown in FIG. 1；

Fig. 6 is that the adjustable lifting device of the multifunctional wheelchair of the utility model looks up three-dimensional structure diagram；

Fig. 7 is the support construction and driving mechanism expanded schematic diagram that Fig. 6 adjustable lifting device simplifies；

Fig. 8 is the side view of Fig. 5 (castor is in decomposing state)；

Fig. 9 looks up three-dimensional structure diagram for Fig. 5's.

Appended drawing reference

1 pedestal, 10 foot pedal

11 infusion support, 12 block

13 sliding slot, 14 buffer

15 closing piece, 16 handrail

17 wheel, 18 self-locking spring

19 unlock 111 first electric putters of frame

112 second electric putter, 113 third electric putter

114 strut, 115 handrail side yoke plate

Joining beam under 116 pedal joining beam, 117 handrail

2 adjustable lifting device, 21 front apron

23 neckpillow of handrail before 22

3 seat plate, 31 defecation through-hole

4 backrests

Roller bearing on 5 second line of a couplet fishplate bars 51

52 idler wheel, 53 transition support arm

54 transition support 55 roller groove of shaft

The front lower support shaft of 56 coupling head 57

Upper support shaft before 58 push shafts 59

6 support constructions

61 front support rod component, 62 back support rod component

63 rami posterior inferiors support 64 rami posterior superior of axis and support axis

7 supporting pole rack, 71 left side bar

72 horizontal push rods

The external desktop of 8 square handrail 9

Specific embodiment

Many details are elaborated in following specific descriptions in order to fully understand the utility model, but this reality It can also be realized using other different from the other modes of this description with novel, therefore, the protection scope of the utility model is simultaneously It is not limited by the specific embodiments disclosed below.

As shown in Figure 1, a kind of multifunctional wheelchair, the pedestal 1 including having wheel 17, further include being connected in 1 top of pedestal Adjustable lifting device 2.

As in Figure 2-4, adjustable lifting device 2 includes seat plate 3 and the hinged backrest 4 in 3 rear end of seat plate, with pedestal 1 The second line of a couplet fishplate bar 5 connect, and the support construction 6 being articulated between seat plate 3 and second line of a couplet fishplate bar 5；Support construction 6 includes front support rod group Part 61, back support rod component 62, front support rod component 61 include left front support rod and right anterior branch strut, and back support rod component 62 wraps Include left back support rod and right back support rod.Adjustable lifting device 2 further includes for driving support construction 6 to rotate and/or be used for The driving mechanism for driving seat plate 3 to go up and down, driving mechanism generates rotary motion or linear motion, so that seat plate 3, front support rod component 61, the parallelogram mechanism that second line of a couplet fishplate bar 5 and back support rod component 62 are formed is in unfolded state or receiving state.When being in When unfolded state, the multifunctional wheelchair of the utility model is in running order, and nurse or the family members to watch over the sick can be assisted to making User carries out daily cleaning activity.When being in receiving state, the multifunctional wheelchair of the utility model overlaps storage, and volume is most It is small, it can easily receive and be stacked in any corner, reduce space hold amount.

As shown in Figure 4 and Figure 5, two groups of front and back wheel 17 is symmetrically installed with below pedestal 1, wheel 17 is removable with pedestal 1 Formula thread connection, by the artificial increase and decrease of screw thread mesh volume, connection height can be adjusted on demand.Since the utility model is applicable in Bed height it is different, when the height of adjustable lifting device 2 is unable to satisfy requirement, by wheel 17 on pedestal 1 come Auxiliary adjustment multifunctional wheelchair whole height adjusts most lathe beds that altitude range is suitable for using on the market, has Extensive versatility.

In embodiment 1, as shown in Figure 6 and Figure 7, front lower support shaft 57, preceding upper support shaft 59, rami posterior inferior support axis 63 and it is rear on Four articulated positions of the composition support construction 6 of support shaft 64.First electric putter 111 is electric telescopic rod, the first electric putter 111 The fixation bracket (being set to second line of a couplet fishplate bar 5, belong to a part of second line of a couplet fishplate bar 5) of fixing end and adjustable lifting device 2 is hingedly, living Moved end is sheathed on 58 outer ring of push shaft by coupling head 56, and 58 both ends of push shaft are respectively provided with an idler wheel 52, and idler wheel 52 is in left front support It is rolled in set roller groove 55 on bar, right anterior branch strut, the fixation bracket of adjustable lifting device 2 is additionally provided with transition support and turns Axis 54, transition support 54 both ends of shaft and fixed bracket hinged, are equipped at transition support 54 two close end of shaft and mutually hang down with its axis Straight transition support arm 53,53 top of transition support arm are equipped with the lesser upper roller bearing 51 of diameter, and pivot is also distinguished at the both ends of push shaft 58 It is connected to the middle section of transition support arm 53.In 2 uphill process of adjustable lifting device, 52 outer surface of idler wheel is contacted with roller groove 55, When the movable end of first electric putter 111 stretches out, idler wheel 52 is driven to roll in roller groove 55, by seat plate 3, front support rod component 61, parallelogram composed by second line of a couplet fishplate bar 5 and back support rod component 62 is propped up.When adjustable lifting device 2 rise to it is pre- When fixed height (being bordering on maximum opening state), idler wheel 52 is detached from roller groove 55, support force is not generated, by 53 top of transition support arm Upper roller bearing 51 and the both sides of the edge of roller groove 55 at be in contact to generate support force, the arm of force at this time becomes larger, the first electric putter Reaction force suffered by 111 becomes smaller, so that adjustable lifting device 2 can more be stablized in opening state.In this way Support construction advantage be that initial stressed can be increased in 2 uphill process of adjustable lifting device, and shorten electric putter Stroke, stress is small again in maximum rating for electric putter, guarantees the structural stability of each component, increases service life.On therein Roller bearing 51 preferably uses step structure, i.e. the diameter at both ends is less than intermediate part.

In other embodiments, the upper backup pad of the multifunctional wheel seat base 1 of the utility model is equipped with sliding slot 13, lower link The lower section of plate 5 is equipped with the pulley being slidably matched with sliding slot 13, and the sliding constituted between adjustable lifting device 2 and pedestal 1 is removable Formula connection.

As shown in Fig. 5, Fig. 8 and Fig. 9, in other embodiments, sliding slot is used between adjustable lifting device 2 and pedestal 1 Locking structure carries out removable connection.1 upper surface of pedestal is equipped with: four blocks 12 (front and back each pair), two sliding slot 13, two 14, two closing pieces 15 of buffer；Two closing pieces 15, which pass through the upper surface of pedestal 1 plate (i.e. upper surface) and extend downwardly, is connected in unlock frame 19 top, unlock frame 19 are slidably connected by guide rod and are only butted on unlock in being arranged on the lower section of the upper surface of pedestal 1 plate, guide rod The self-locking spring 18 of 19 lower section of frame.It is equipped with the spring of bumper and absorbing shock inside buffer 14, reduces the inertia in assembling process to making Secondary injury caused by user.Fixed lobe of the block 12 for 5 lower surface of second line of a couplet fishplate bar only to adjustable lifting device 2 (be not shown in the figure, be equipped with two groups, be bordering on front end equipped with two, be bordering on rear end equipped with two, is corresponding with the quantity of block 12), For the limit after assembling.When multifunctional wheelchair to be applied in combination, the second line of a couplet fishplate bar 5 of adjustable lifting device 2 is at two Under the position-limiting action of sliding slot 13, by the rear end of pedestal 1, towards the horizontal direction of front end, 13 slidings are accessed along the chute, under second line of a couplet fishplate bar 5 When the fixed lobe on surface acts on the guiding surface of closing piece 15, closing piece 15 is pressed downward, the fixed lobe for being bordering on rear end is crossed After the top of closing piece 15, closing piece 15 unlocks the spring force that frame 19 generates by 18 pairs of self-locking spring and pops up automatically, The fixed lobe for being bordering on rear end is placed between the block 12 of rear end and closing piece 15, forms assembly assembled state.Because using sliding slot 13 And buffer 14, it is ensured that the labor-saving and safety of assembling process ensure that assembly effect because using block 12 and closing piece 15 It is solid reliable.When being split combined multifunctional wheelchair, pressure is applied to closing piece 15, closing piece 15 presses to upper surface Concordant with 5 upper surface of second line of a couplet fishplate bar, the elastic force of buffer 14 is towards assembly opposite direction, so that adjustable lifting device 2 releases Couple with the locking of pedestal 1, then adjustable lifting device 2 is dragged by external force, completes to split, such structure makes split process Time saving and energy saving, operation can be completed in one.When specifically being split, user is slammed downwards with foot (or with other work Tool presses down) unlock frame 19 crossbar sections, to unlock frame 19 apply downward pressure, to overcome the bullet of self-locking spring 18 Spring force, so that closing piece 15 be driven to press to, upper surface is concordant with 5 upper surface of second line of a couplet fishplate bar, the elastic force direction assembly phase of buffer 14 Opposite direction so that the releasing of adjustable lifting device 2 couples (i.e. de-assembly assembled state) with the locking of pedestal 1, then is dragged by external force Dynamic adjustable lifting device 2 is completed to split.This foot-operated unlocking structure can mitigate the working strength of fractionation personnel, convenient reliable. The structure of block 12 therein in the present embodiment is inverted L shape, to form the limit chamber for accommodating fixed lobe, in assembly group Under conjunction state, adjustable lifting device 2 can be prevented to be detached from upward in pedestal 1.

In other embodiments, second line of a couplet fishplate bar 5 is the upper backup pad of pedestal 1, and multifunctional wheelchair is integrally formed formula structure.

Alternatively, the upper backup pad that second line of a couplet fishplate bar 5 is equipped with pedestal 1 is fixedly connected, connecting mode includes thread connection, welding Deng, purpose also for the multifunctional wheelchair for obtaining integral structure, guarantee the reliability and durability property of wheelchair.

As shown in Fig. 2, adjustable lifting device 2 further include:

The front apron 21 hinged with the front end of seat plate 3, when wheelchair, which is in, sits up working condition, front apron 21 is used cooperatively Person's calf inclination, to provide support force to leg.

Hinge is set to the preceding handrail 22 of the front center of seat plate 3, and when wheelchair, which is in, sits up working condition, preceding handrail 22 is by water Level state rotates to be vertical state, helps and holds for user, alleviates the intense strain of user in wheelchair moving process.

Neckpillow 23 set on 4 outer end of backrest, neckpillow 23 can be customized according to user's use demands, be fixedly linked in and lean on It carries on the back 4 outer ends or is equipped with slot in integral structure or 4 outer end of backrest with 4 outer end of backrest, 23 lower part of neckpillow, which is equipped with, to match Inserting column is actively coupled.

As shown in figure 9, in other embodiments, 112 fixing end of the second electric putter and the fixed connection of 1 lower surface bracket of pedestal It connects, joining beam 117 is hinged under movable end and handrail, and joining beam 117 passes through the handrail side yoke plate 115 being fixedly connected and handrail under handrail 16 are fixedly connected, and handrail side yoke plate 115 is vertical with handrail 16.Handrail 16 is when in a horizontal state, be contraction state, second The movable end of electric putter 112 is in the state stretched out.In the operating condition, the movable end of the second electric putter 112 is shunk, thus band Joining beam 117 rotates under dynamic handrail, and while joining beam 117 rotates under handrail, then the handrail side yoke plate 115 by being fixedly connected drives Handrail 16 rotates upwards, and handrail 16, which is propped up, supports elbow for user.

Further technical solution is as shown in figure 9, be arranged with pedal joining beam 116 in the middle part of joining beam 117 under handrail, pedal joining beam 116 one end are articulated with joining beam 117 under handrail, and the other end is articulated in the middle part of the lower section of front pedal 21.In the operating condition, the second electricity The movable end of push rod 112 is shunk, so that joining beam 117 under handrail be driven to rotate, while joining beam 117 rotates under handrail, drive is stepped on Plate joining beam 116 rotates, so that the front pedal 21 coupled is rotated forward by rear, leg of releiving when being sat for user.

Further technical solution is as shown in figure 8, the fixing end of third electric putter 113 is fixedly linked in the fixation of pedestal 1 On bracket, the lower end of movable end and strut 114 is hinged, in conjunction with Fig. 1-Fig. 3 it is found that strut 114 and left side bar 71 and right-hand rod hang down It is directly fixedly connected, backrest 4 is in when being greater than the expansion of an angle of 90 degrees degree, and third electric putter 113 rotates, and then drives strut 114 and left side The rotation of bar 71, right-hand rod rises, and when horizontal push rod 72 is with 4 following table face contact of backrest, driving mechanism stops driving, reaches stable shape State gives backrest 4 enough support forces, ensures the gentle support at user back.

Electric putter in above-described embodiment can be replaced by other straight line power mechanisms, for example have the ball of motor Screw body or screw mechanism are connected to the cylinder or oil cylinder of pressure source.

As shown in Figures 2 and 3, the center of seat plate 3 is equipped with defecation through-hole 31, is equipped with below seat plate 3 and is located at defecation through-hole 31 The elastic frame-type bracket of lower section improves the support validity and container dismounting of waste receptacle with resilient support waste receptacle The degree of convenience of replacement.

In other embodiments, the center of seat plate 3 is equipped with defecation through-hole 31, and the daily excretion on wheelchair for user is sat The lower section of plate 3 is equipped with sliding slot or bracket, and the sliding slot or bracket are located at 31 lower section of defecation through-hole, to be slidably connected or support excretion Object container, excretion containers can according to specific requirements select bedpan, disposable drainage bag or other.

In other embodiments, the driving mechanism of the multifunctional wheelchair of the utility model is with the electronic of deceleration mechanism Machine；Deceleration mechanism is equipped with output shaft and any one rotating shaft transmission couples with front support rod component 61 or back support rod component 62.

In other embodiments, driving mechanism be generate rotary power hand assistor lever, front support rod component 61 or after Any one the shaft outer end of support rod component 62 is equipped with torsion connection part, hand assistor lever and torsion connection part driving coupling.

In other embodiments, driving mechanism is set on second line of a couplet fishplate bar 5 and seat plate 3, front support rod component 61, back support rod Straight line power mechanism of the component 62 between any one, straight line power mechanism are electric putter, cylinder, oil cylinder or ball-screw-transmission machine Structure.

In other embodiments, driving mechanism is air bag between second line of a couplet fishplate bar 5 and seat plate 3, and with air bag gas circuit The air pump of connection.

In other embodiments, driving mechanism is the magnetic force mechanism between second line of a couplet fishplate bar 5 and seat plate 3, magnetic force mechanism It is electric including the lower coil being fixed on above second line of a couplet fishplate bar 5 and the coil being fixed below seat plate 3, and with coil, lower coil Property connection driving circuit；Coil and lower coil generate magnetic field at the same level, and then generate the repulsive force that seat plate 3 is raised above.

As Figure 2-3,1 left side of pedestal and/or right side are hinged with infusion support 11, and infusion support 11 is axial length tune Section formula rod-like structure, when user needs the defecation on the multifunctional wheelchair of the utility model in infusion process or carries out other When daily cleaning works, infusion support 11 is stretched to after desired height by receiving state for hanging transfusion bottle/bag.

In other embodiments, the connection of pedestal 1 has a supporting pole rack 7, and supporting pole rack 7 is door-shaped frame structure, including with pedestal 1 Left side bar 71, the right-hand rod that left rear side, right lateral side couple, and the horizontal push rod 72 coupled with left side bar 71, right side rod rear end.Strut Frame 7 pushes wheelchair carry out activity by wheelchair rear for nurse or families of patients, when backrest 4 and seat plate 3 are in 180 degree expansion shape When state, in the horizontal card slot that the rear back side that horizontal push rod 72 is connected in backrest 4 is equipped with, upward support force is provided to 4 part of backrest, Guarantee safety of the patient under the use states that lie low such as hair washing bathing.

In other embodiments, the two sides of pedestal 1 are hinged with square handrail 8, and square handrail 8 is rotated by 90 ° forward When, it is receiving state.Under 8 vertical state of square handrail, it is use state, helps and lean on for user.Further, square The socket for external desktop 9 is equipped at the top of handrail 8, when user need to take a shower in the enterprising traveling food of multifunctional wheelchair, reading When Deng activity, external desktop 9 is for placing required necessary article utensil.

In other embodiments, 1 front end of pedestal is equipped with foot pedal 10, is used to support foot, is more advantageous to old or prolonged illness In the use of the excretion inconvenience person such as bed, defecation pressure of releiving.

The utility model also discloses following technical scheme simultaneously:

A kind of link mechanism of effort-saving short stroke, can be used for the lifting of tables and chairs and other items, is especially suitable for space Small product structure.Specific structure are as follows: a kind of link mechanism of effort-saving short stroke includes upper gusset piece (in the implementation of Fig. 1-9 Be seat plate in example), second line of a couplet fishplate bar, and the support construction being articulated between gusset piece and second line of a couplet fishplate bar；The support construction Including front support rod component, back support rod component；It further include the driving mechanism for driving support construction to rotate, the driving machine Structure generates linear motion, so that parallel four side that upper gusset piece, front support rod component, second line of a couplet fishplate bar are formed with back support rod component Shape mechanism is in unfolded state or receiving state；The front support rod component includes left front support rod and right anterior branch strut, institute The back support rod component stated includes left back support rod and right back support rod；The driving mechanism is electric telescopic rod；Electric expansion The fixing end of bar and second line of a couplet fishplate bar are hinged, and the movable end of electric telescopic rod is sheathed on push shaft outer ring, push shaft both ends by coupling head It is respectively provided with an idler wheel, is rolled in idler wheel roller groove set on left front support rod, right anterior branch strut, second line of a couplet fishplate bar is additionally provided with Transition supports shaft, and transition supports both ends of the shaft and second line of a couplet fishplate bar hinged, and transition is supported and is equipped with and its axis at shaft two close end Perpendicular transition support arm, transition support arm top are equipped with upper roller bearing, and the both ends of push shaft are also respectively pivoted to transition support arm Middle section.In uphill process, idler wheel outer surface is contacted with roller groove, when the movable end of electric telescopic rod stretches out, idler wheel is driven to exist It is rolled in roller groove, by parallelogram composed by upper gusset piece, front support rod component, second line of a couplet fishplate bar and back support rod component It props up.When adjustable lifting device rises to predetermined altitude (being bordering on maximum opening state), idler wheel is detached from roller groove, does not generate Support force generates support force by being in contact at the upper roller bearing on transition support arm top and the both sides of the edge of roller groove, at this time The arm of force becomes larger, and reaction force suffered by the first electric putter becomes smaller, so that adjustable lifting device can in opening state More stablize.Such support construction advantage is that initial stressed can be increased in adjustable lifting device uphill process, And shortening the stroke of electric putter, stress is small again in maximum rating for electric putter, guarantees the structural stability of each component, increases and uses Service life.Upper roller bearing therein preferably uses step structure, i.e. the diameter at both ends is less than intermediate part.

A kind of link mechanism of effort-saving short stroke of the utility model can be used for multifunctional wheelchair, specifically such as Fig. 1-9 Shown in embodiment, it is also possible in the structure for various chairs, such as school chair, automotive seat etc..

The invention also discloses a kind of linkage link mechanisms for seat；Seat includes pedestal, and with pedestal two The hinged handrail in side, the hinged foot pedal with pan frontward end；It further include set on the straight line driving between pedestal and handrail Structure；The fixing end of straight line driving mechanism and the bracket of pedestal are fixedly connected, and movable end and joining beam under handrail are hinged, joining beam under handrail It is fixedly connected by the handrail side yoke plate being fixedly connected with handrail；Handrail is when in a horizontal state, is contraction state, straight line The movable end of driving mechanism is in the state stretched out；In the operating condition, the movable end of straight line driving mechanism is shunk, to drive Joining beam rotates under handrail, and while joining beam rotates under handrail, then the handrail side yoke plate by being fixedly connected drives handrail upward Rotation, handrail, which is propped up, supports elbow for user.

Further technical solution are as follows: be arranged with pedal joining beam in the middle part of joining beam under handrail, pedal joining beam one end, which is articulated with, to be helped Subordinate joining beam, the other end are articulated in the middle part of the lower section of front pedal；In the operating condition, the movable end of straight line driving mechanism is shunk, To drive joining beam under handrail to rotate, while joining beam rotates under handrail, the rotation of pedal joining beam is driven, so that coupled Front pedal is rotated forward by rear, leg of releiving when sitting for user.

A kind of linkage link mechanism for seat of the utility model can be used for multifunctional wheelchair, specifically such as Fig. 1-9 Shown in embodiment, it is also possible in the structure for various chairs, such as rumble seat, automotive seat etc..

In conclusion a kind of multifunctional wheelchair of the utility model, because what is cooperated using pedestal and adjustable lifting device Structure type, height, the angle of wheelchair main body are adjustable, have more wide applicability, the bed suitable for various height Body, and meet and lie low, sitting, movement, receive a variety of use demands such as folded；Because using sliding dismountable structure, Convenient wheelchair main body With being used separately for pedestal, weight is lighter, reduces the physical strength expenditure of nurse and families of patients, and in mobile working state application In the case where less, multiple wheelchair main bodys can a public pedestal, reduce expense expenditure；In further including because of adjustable lifting device The heart is equipped with the seat plate of defecation through-hole, the front apron for being used to support lower leg portion, helps the preceding handrail and supporting head part leaned on for user Neckpillow, increase comfort level while have higher safety；Because that can use a variety of power-driven mechanisms, manufacturer can be with Flexible choice is carried out according to different costs and production emphasis；Pedestal is additionally provided with supporting pole rack for pushing wheelchair, is used to support The handrail of user's ancon, the external desktop for placing article and the foot pedal for being used to support foot, it is full-featured, it is solid resistance to With.

The above-mentioned technology contents that the utility model is only further illustrated with embodiment in order to understand, but do not represent this The embodiment of utility model is only limitted to this, and any technology done according to the utility model extends or recreation, by this reality With novel protection.The protection scope of the utility model is subject to claims.

Claims (10)

1. a kind of multifunctional wheelchair, the pedestal including having wheel, it is characterised in that: further include being connected in above the pedestal Adjustable lifting device；The adjustable lifting device includes seat plate and the hinged backrest in seat plate rear end, is coupled with pedestal Second line of a couplet fishplate bar, and the support construction being articulated between seat plate and second line of a couplet fishplate bar；The support construction include front support rod component, Back support rod component；Adjustable lifting device further includes for driving support construction to rotate and/or for driving seat plate to go up and down Driving mechanism, the driving mechanism generate rotary motion or linear motion so that seat plate, front support rod component, second line of a couplet fishplate bar and The parallelogram mechanism that back support rod component is formed is in unfolded state or receiving state.

2. multifunctional wheelchair according to claim 1, which is characterized in that the upper backup pad of the pedestal is equipped with sliding slot, institute The lower section for stating second line of a couplet fishplate bar is equipped with the pulley being in sliding fit with the sliding chute, to constitute the sliding between adjustable lifting device and pedestal Removable connection；

Alternatively, the second line of a couplet fishplate bar is the upper backup pad of the pedestal, to be integrally formed formula structure；

Or the upper backup pad that the second line of a couplet fishplate bar is equipped with the pedestal is fixedly connected.

3. multifunctional wheelchair according to claim 1, which is characterized in that the adjustable lifting device further include:

The hinged front apron with the front end of the seat plate；

Hinge is set to the preceding handrail of the front center of the seat plate；

Neckpillow set on the backrest outer end；

The front support rod component includes left front support rod and right anterior branch strut, and the back support rod component includes left back branch Strut and right back support rod.

4. multifunctional wheelchair according to claim 1, which is characterized in that the center of the seat plate is equipped with defecation through-hole；

The elastic frame-type bracket being located at below defecation through-hole is equipped with below the seat plate, with resilient support waste receptacle.

5. multifunctional wheelchair according to claim 1-4, which is characterized in that

The driving mechanism is the motor with deceleration mechanism；The deceleration mechanism be equipped with output shaft and with front support rod component Or back support rod component any one rotating shaft transmission connection；

Alternatively,

The driving mechanism is the hand assistor lever for generating rotary power, and the front support rod component or back support rod component are appointed The shaft outer end of one is equipped with torsion connection part, the hand assistor lever and torsion connection part driving coupling；

Or

The driving mechanism is straight between any one set on second line of a couplet fishplate bar and seat plate, front support rod component, back support rod component Line power mechanism, the straight line power mechanism are electric putter, cylinder, oil cylinder or ball-screw transmission mechanism；

Or

The driving mechanism is the air bag between second line of a couplet fishplate bar and seat plate, and the air pump coupled with air bag gas circuit；

Or

The driving mechanism is the magnetic force mechanism between second line of a couplet fishplate bar and seat plate, and the magnetic force mechanism includes under being fixed on Lower coil above gusset piece and the coil being fixed below seat plate, and the driving electricity electrically coupled with coil, lower coil Road；The coil and lower coil generate magnetic field at the same level, and then generate the repulsive force that seat plate is raised above.

6. multifunctional wheelchair according to claim 1-4, which is characterized in that the chassis left side and/or the right side Side is hinged with infusion support, and the infusion support is axial length adjustable type rod-like structure.

7. multifunctional wheelchair according to claim 1-4, which is characterized in that the pedestal connection has strut Frame, the supporting pole rack is door-shaped frame structure, including left side bar, the right-hand rod coupled with the left rear side of pedestal, right lateral side, and The horizontal push rod coupled with left side bar, right side rod rear end；When the backrest and seat plate are in 180 degree unfolded state, the horizontal push rod It is connected in the horizontal card slot that the rear back side of backrest is equipped with.

8. multifunctional wheelchair according to claim 1-4, which is characterized in that the two sides of the pedestal are hinged with directly Angular handrail is receiving state when the square handrail is rotated by 90 ° forward.

9. multifunctional wheelchair according to claim 8, which is characterized in that be equipped with and be used at the top of the adjustable armrest The socket of external desktop.

10. multifunctional wheelchair according to claim 1, which is characterized in that the pan frontward end is equipped with foot pedal.