CN204951384U - Hand wheelchair is controlled to one hand - Google Patents

Abstract

The utility model discloses a hand wheelchair is controlled to one hand, its running -board, back, seat board set up respectively on the frame, and the rear wheel setting is at the back tip of frame, and characteristics are: the manual setter includes U -shaped crank, steering spindle, fore carriage, two threaded bushs, two studdle, driving pulley, from the driven pulleys and drive belt, and assembly tip before the frame is rotated to the one end of steering spindle, and the fore carriage is fixed to the other end, and from the driven pulleys rotates and supports on the fore carriage, rotates with the front wheel is coaxial, synchronous, the one end of threaded bush respectively vertical, symmetrical immobilization connection on the fore carriage, the other end respectively with studdle's lower extreme thread connection, studdle's upper end is equipped with the supporting seat respectively, and the both ends of U -shaped crank are transversely just rotated respectively and are supported in the supporting seat, driving pulley non - rotation assembly respectively rotates with the U -shaped crank is coaxial, synchronous on the both ends of U -shaped crank. The utility model discloses rational in infrastructure, low in manufacturing cost controls portably, turns to the convenience.

Description

The hand wheelchair of a kind of singlehanded manipulation

Technical field

This utility model relates to the chair being suitable for people with disability specially, especially the hand wheelchair of a kind of singlehanded manipulation.

Background technology

We know, wheelchair is the important tool of rehabilitation, and it is not only the walking-replacing tool of limbs the disabled, the more important thing is and make them carry out physical exercise by means of wheelchair and participate in social activity.Common wheelchair is generally made up of parts such as wheelchair frame, wheel, seat lean on, and hand wheelchair is on common wheelchair basis, increase manual setter, the primary structure of common hand wheelchair has: vehicle frame and the pedal be separately positioned on vehicle frame, backrest, medicated cushion, front-wheel, trailing wheel and the manual setter manipulating front-wheel or trailing wheel.Traditional hand wheelchair is generally applicable to the sound user of those both hands, for the patient of some hemiplegic patients or upper limb disability, then cannot by singlehanded manipulation wheelchair, and manipulation is comparatively required great effort.Numerous technical staff research and develop the hand wheelchair that one hand manipulates for this reason, such as, one " one-handed performance people with disability tricycle " is disclosed in CN103029782A Chinese invention patent application description disclosed in 10 days April in 2013, it comprises vehicle frame, brake block, driving mechanism and two driven trailing wheels, vehicle frame comprises the front fork being connected with wheel, back vent and seat, front fork and vehicle frame are rotationally connected, feature is: driving mechanism is by front fork, turning-bar, rocking bar, crank disc, the toggle that connecting rod is formed, wherein, turning-bar is fixedly connected with front fork, the upper end of rocking bar be provided with handle and lower end and turning-bar vertical hinged, crank disc is coaxially connected with front-wheel, the two ends of connecting rod are hinged with the middle part of crank disc perimembranous and rocking bar respectively, front wheel diameter is greater than rear wheel diameter, front fork, brake block is equipped with respectively in back vent both sides.Disclosed in this patent application, technical scheme achieves one-handed performance tricycle, but its driving mechanism is the toggle be made up of front fork, turning-bar, rocking bar, crank disc, connecting rod, there is complex structure, deficiency that manufacturing cost is high; And " a kind of wheel chair controlled by single hand " is disclosed in CN201537185U Chinese utility model patent disclosed in 4 days Augusts in 2010 illustrates, it comprises wheelchair body, wheelchair body arranges pedal, be characterised in that and also comprise axle and left and right road wheel, axle plug-in mounting on the footrests, axle one end is connected handrail, and the other end connects transverse axis after running through pedal, install left lateral travelling wheel at the left end of transverse axis, the right-hand member of transverse axis installs right lateral travelling wheel.Have complicated train and control device for reversing in technical scheme disclosed in this patent specification, there is complex structure in it, the deficiency not easily manipulated.

Summary of the invention

In order to the hand wheelchair overcoming disclosed in prior art singlehanded manipulation also exists the deficiency that complex structure, manufacturing cost are high, not easily manipulate, this utility model provide a kind of structure simple, reasonable in design, manipulate one hand that is easy, low cost of manufacture and manipulate hand wheelchair.

This utility model solves the technical scheme that its technical problem adopts: the hand wheelchair of a kind of singlehanded manipulation, it comprises a vehicle frame, one pedal, one backrest, one seat plate, two trailing wheels, the manual setter of at least one front-wheel and manipulation front-wheel, described pedal, backrest, seat plate is separately positioned on vehicle frame, described trailing wheel is separately positioned on the rearward end of vehicle frame, it is characterized in that: described manual setter comprises a U-shaped crank, one steering spindle, one front wheel carrier, two threaded sleeves, two studdles, two driving pulleys, at least one driven pulley and two driving-belts, wherein, one end of described steering spindle is vertical, rotate the leading section being assemblied in vehicle frame, the other end and the described front wheel carrier of this steering spindle are fixedly connected, on described front wheel carrier, fork-join has front axle, described driven pulley is rotatably supported on this front axle, described front-wheel is nonrotationally assemblied on driven pulley, coaxial with driven pulley, synchronous axial system, one end of described threaded sleeve respectively, symmetry vertical by connector is fixedly connected on front wheel carrier, the other end of threaded sleeve respectively with the lower end thread connection of studdle, the upper end of studdle is respectively equipped with supporting seat, and described U-shaped crank is arranged on inside two threaded sleeves, and its two ends respectively laterally and be rotatably supported in supporting seat, described driving pulley is nonrotationally assemblied on the end, two ends of the U-shaped crank be positioned at outside two threaded sleeves respectively, synchronous axial system coaxial with U-shaped crank, described driving-belt is corresponding to being assemblied on two driving pulleys and driven pulley respectively.

Two described studdles are respectively installed with threeway connector, each threeway connector carries out locking position by two nuts of thread connection on studdle respectively, two backplates are nonrotational vertically or to be laterally inserted in the spliced eye of threeway connector, and carries out pin calmly by latch.

Described driving pulley, driven pulley are synchronous pulley, and described driving-belt is Timing Belt.

Described vehicle frame is the T-shaped vehicle frame connected to form by a longeron and a crossbeam.

Be arranged with rear wheel frame respectively at the two ends of described crossbeam, on rear wheel frame, fork-join has hind axle respectively, and described trailing wheel is rotatably supported on hind axle respectively.

Described pedal is made up of a pedal bottom plate and the side guard plate being separately positioned on pedal bottom plate periphery, and described pedal bottom plate is fixedly connected on described longeron through connector.

Described seat plate is fixedly connected on a seat beam through connector, one Seat support screw rod is fixedly connected the lower middle part of this seat beam, one end one connector of one seat threaded sleeve is vertically fixedly connected on described longeron, the free end of Seat support screw rod and the other end thread connection of seat threaded sleeve; The curved round in middle part of described backrest, two ends bend downwards and correspondence is fixedly connected on the two ends of described seat beam respectively.

Described Seat support screw rod is equipped with seat lock nut, the position of this seat locking nut locking threaded sleeve and Seat support screw rod.

Described U-shaped crank is set with a crank sleeve pipe.

This utility model is provided with a manual setter in the leading section of vehicle frame, the leading section that one end of the steering spindle in this manual setter is vertical, rotation is assemblied in vehicle frame, and the other end and front wheel carrier are fixedly connected; Driven pulley is rotatably supported on front wheel carrier through front axle, and front-wheel is coaxial with driven pulley, synchronous axial system; Vertical by connector on front wheel carrier, symmetry is fixedly connected two threaded sleeves, the lower end thread connection of two studdles is on threaded sleeve, upper end is respectively equipped with supporting seat, and U-shaped crank is arranged on inside two threaded sleeves, and its two ends respectively laterally and be rotatably supported in supporting seat; Driving pulley is nonrotationally assemblied on the end, two ends of the U-shaped crank be positioned at outside two threaded sleeves respectively, synchronous axial system coaxial with U-shaped crank; Driving-belt is corresponding to being assemblied on two driving pulleys and driven pulley respectively.This utility model structure is simple, and used unit is few, low cost of manufacture; Change the thread connection of studdle and threaded sleeve, can realize the tensioning adjustment of driving-belt and the adjustment of U-shaped crank height, it is reasonable in design; Singlehanded shake U-shaped crank, U-shaped crank is coaxial with driving pulley, synchronous axial system, synchronous axial system coaxial with front-wheel through driving-belt drive driven pulley, and its manipulation is easy; Be assemblied in the steering spindle of vehicle frame leading section through rotation and realize easily turning to.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is described in further detail.

Fig. 1 is a kind of structural front view of the present utility model;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the left view of Fig. 1;

Fig. 4 is I place's partial enlarged drawing in Fig. 3.

Labelling in figure: 1. manual setter, 101. crank sleeve pipes, 102. supporting seat, 103. first driving pulleys, 104. second driving pulleys, 105.U shape crank, 106. first studdles, 107. second studdles, 108. first threeway connectors, 1081. the first latch, 109. second threeway connectors, 110. first driving-belts, 111. second driving-belts, 112. first threaded sleeves, 113. second threaded sleeves, 114. first backplates, 115. second backplates, 116. steering spindle, 117. driven pulley, 118. front wheel carrier, 2. front-wheel, 3. front axle, 4. vehicle frame, 401. longeron, 402. crossbeam, 5. pedal, 501. pedal bottom plate, 502. side guard plate, 6. trailing wheel, 7. seat threaded sleeve, 8. seat lock nut, 9. Seat support screw rod, 10. seat plate, 11. backrests, 12. seat beams, 13. rear wheel frames, 14. hind axles.

Detailed description of the invention

In Fig. 1, Fig. 2, the hand wheelchair of a kind of singlehanded manipulation, it comprises the manual setter 1 of vehicle frame 4, pedal 5, backrest 11, seat plate 10, two trailing wheel 6, at least one front-wheel 2 and manipulation front-wheel 2.

As shown in Figure 2, for reducing car body weight and reducing manufacturing cost, in the present embodiment, vehicle frame 4 is the T-shaped vehicle frames by a longeron 401 and crossbeam 402 vertical welding.

In Fig. 1, Fig. 2, pedal 5 is made up of a pedal bottom plate 501 and welding is arranged on pedal bottom plate periphery respectively side guard plate 502, and pedal bottom plate 501 is fixedly connected on longeron 401 through screw or rivet.

In Fig. 1, Fig. 2, two trailing wheels 6 are symmetricly set on the two ends of the crossbeam 402 of vehicle frame 4 respectively.Namely be arranged with rear wheel frame 13 respectively at the two ends of crossbeam 402, on rear wheel frame 13, fork-join has hind axle 14 respectively, and two trailing wheels 6 respectively warp beam hold and are rotatably supported on hind axle 14.

As shown in Figure 3, manual setter 1 comprises U-shaped crank 105, steering spindle 116, front wheel carrier 118, first threaded sleeve 112, second threaded sleeve 113, first studdle 106, second studdle 107, first driving pulley 103, second driving pulley 104, driven pulley 117 and first driving-belt 110, second driving-belt 111.

In Fig. 1, Fig. 3, one end of steering spindle 116 is vertical, rotate the leading section being assemblied in the longeron 401 of vehicle frame 4 by bearing, and the other end and the front wheel carrier 118 of this steering spindle 116 are welded and fixed.

As shown in Figure 1, Figure 3, on front wheel carrier 118, fork-join has front axle 3, and driven pulley 117 warp beam is held and is rotatably supported on this front axle 3, and front-wheel 2 is nonrotationally assemblied on driven pulley 117 by key connecting, synchronous axial system coaxial with driven pulley 117.

In figure 3, one end of first threaded sleeve 112, second threaded sleeve 113 respectively, symmetry vertical by bolt is fixedly connected on front wheel carrier 118, the other end of the first threaded sleeve 112, second threaded sleeve 113 respectively with the lower end thread connection of the first studdle 106, second studdle 107.

In Fig. 2, Fig. 3, the upper end of the first studdle 106, second studdle 107 is respectively equipped with supporting seat 102, and U-shaped crank 105 is arranged on inside two threaded sleeves, its two ends respectively laterally and warp beam hold and be rotatably supported in supporting seat 102.

In figure 3, first driving pulley 103, second driving pulley 104 is assemblied in respectively by key connecting on the end, two ends of the U-shaped crank 105 be positioned at outside two threaded sleeves, the first driving pulley 103, second driving pulley 104, synchronous axial system coaxial with U-shaped crank 105 respectively.

In figure 3, the first driving-belt 110 is around being assemblied in the first driving pulley 103 with on driven pulley 117; Second driving-belt 111 is around being assemblied in the second driving pulley 104 with on driven pulley 117.

In order to transmission is accurately with steady, fricton-tight during work, have constant gear ratio, as shown in Figure 3, the first driving pulley 103, second driving pulley 104, driven pulley 117 are synchronous pulley, and the first driving-belt 110, second driving-belt 111 is Timing Belt.First driving-belt 110 and the first driving pulley 103, driven pulley 117 achieve synchronous belt pulley transmission; Second driving-belt 111 and the second driving pulley 104, driven pulley 117 achieve synchronous belt pulley transmission.

As shown in Figure 3, Figure 4, first studdle 106, second studdle 107 is respectively installed with the first threeway connector 108, second threeway connector 109, and each threeway connector carries out locking position by two nuts of thread connection on the studdle of correspondence respectively.

In Fig. 3, Fig. 4, the square shaft of the first backplate 114, second backplate 115 respectively on it vertically or is laterally inserted in the square spliced eye of the first threeway connector 108, second threeway connector 109, and carries out pin calmly by the first latch 1081, second latch (depending on not going out in figure) respectively.First backplate 114 or the second backplate 115 during horizontal plug-in mounting, can use as small table plate on threeway connector.

As shown in Figure 1 and Figure 2, seat plate 10 adopts screw or rivet to be fixedly connected on a seat beam 12.In order to the installation of seat plate 10 and the adjustment of height, in FIG, one Seat support screw rod 9 is weldingly fixed on the lower middle part of this seat beam 12, one end one bolt of one seat threaded sleeve 7 is vertically fixedly connected on the longeron 401 of vehicle frame 4, the free end of Seat support screw rod 9 and the other end thread connection of seat threaded sleeve 7.By the relevant position of adjustment seat studdle 9 with seat threaded sleeve 7, the height of seat plate 10 can be controlled.

In order to installation and the raising comfortableness of backrest, as shown in Figure 1 and Figure 2, the curved round in middle part of backrest 11, two ends bend downwards and distinguish corresponding bolt-connection on the two ends of seat beam 12.

In order to lock seat threaded sleeve 7 and the position of Seat support screw rod 9, as shown in Figure 1, seat studdle 9 is equipped with seat lock nut 8.

For convenience of the hand operation to U-shaped crank 105, reduce the friction of U-shaped crank 105 opponent, as shown in Figure 3, U-shaped crank 105 is set with a crank sleeve pipe 101.

This utility model in use, realizes the height adjustment of tensioning to the first driving-belt 110, second driving-belt 111 and U-shaped crank 105 respectively by adjustment first studdle 106 and the first threaded sleeve 112, second studdle 107 and the second threaded sleeve 113; By the position of adjustment seat threaded sleeve 7 with Seat support screw rod 9, adjusting seat plate 10 is highly suitable; Singlehanded shake U-shaped crank 105, U-shaped crank 105 and coaxial, the synchronous axial system of two driving pulleys 103,104, thus, synchronous axial system coaxial with front-wheel 2 through two driving-belts 110,111 drive driven pulleys 117 respectively, realize the forward and backward movement of wheelchair; When needs turn to, one hand pulls crank 105, and moment of torsion two studdle 106,107, two threaded sleeve 112,113 reaches front wheel carrier 118 and realizes turning to through steering spindle 116.

This utility model structure is simple, reasonable in design, manipulate easy, low cost of manufacture.

Claims (9)

1. the hand wheelchair of singlehanded manipulation, it comprises a vehicle frame, one pedal, one backrest, one seat plate, two trailing wheels, the manual setter of at least one front-wheel and manipulation front-wheel, described pedal, backrest, seat plate is separately positioned on vehicle frame, described trailing wheel is separately positioned on the rearward end of vehicle frame, it is characterized in that: described manual setter comprises a U-shaped crank, one steering spindle, one front wheel carrier, two threaded sleeves, two studdles, two driving pulleys, at least one driven pulley and two driving-belts, wherein, one end of described steering spindle is vertical, rotate the leading section being assemblied in vehicle frame, the other end and the described front wheel carrier of this steering spindle are fixedly connected, on described front wheel carrier, fork-join has front axle, described driven pulley is rotatably supported on this front axle, described front-wheel is nonrotationally assemblied on driven pulley, coaxial with driven pulley, synchronous axial system, one end of described threaded sleeve respectively, symmetry vertical by connector is fixedly connected on front wheel carrier, the other end of threaded sleeve respectively with the lower end thread connection of studdle, the upper end of studdle is respectively equipped with supporting seat, and described U-shaped crank is arranged on inside two threaded sleeves, and its two ends respectively laterally and be rotatably supported in supporting seat, described driving pulley is nonrotationally assemblied on the end, two ends of the U-shaped crank be positioned at outside two threaded sleeves respectively, synchronous axial system coaxial with U-shaped crank, described driving-belt is corresponding to being assemblied on two driving pulleys and driven pulley respectively.

2. the hand wheelchair of a kind of singlehanded manipulation according to claim 1, it is characterized in that: on two described studdles, be respectively installed with threeway connector, each threeway connector carries out locking position by two nuts of thread connection on studdle respectively, two backplates are nonrotational vertically or to be laterally inserted in the spliced eye of threeway connector, and carries out pin calmly by latch.

3. the hand wheelchair of a kind of singlehanded manipulation according to claim 1, it is characterized in that: described driving pulley, driven pulley are synchronous pulley, described driving-belt is Timing Belt.

4. the hand wheelchair of a kind of singlehanded manipulation according to claim 1, is characterized in that: described vehicle frame is the T-shaped vehicle frame connected to form by a longeron and a crossbeam.

5. the hand wheelchair of a kind of singlehanded manipulation according to claim 4, it is characterized in that: be arranged with rear wheel frame respectively at the two ends of described crossbeam, on rear wheel frame, fork-join has hind axle respectively, described trailing wheel is rotatably supported on hind axle respectively.

6. the hand wheelchair of a kind of singlehanded manipulation according to claim 4, it is characterized in that: described pedal is made up of a pedal bottom plate and the side guard plate being separately positioned on pedal bottom plate periphery, and described pedal bottom plate is fixedly connected on described longeron through connector.

7. the hand wheelchair of a kind of singlehanded manipulation according to claim 4, it is characterized in that: described seat plate is fixedly connected on a seat beam through connector, one Seat support screw rod is fixedly connected the lower middle part of this seat beam, one end one connector of one seat threaded sleeve is vertically fixedly connected on described longeron, the free end of Seat support screw rod and the other end thread connection of seat threaded sleeve; The curved round in middle part of described backrest, two ends bend downwards and correspondence is fixedly connected on the two ends of described seat beam respectively.

8. the hand wheelchair of a kind of singlehanded manipulation according to claim 7, is characterized in that: on described Seat support screw rod, be equipped with seat lock nut, the position of this seat locking nut locking threaded sleeve and Seat support screw rod.

9. the hand wheelchair of a kind of singlehanded manipulation according to claim 1, is characterized in that: on described U-shaped crank, be set with a crank sleeve pipe.