CN2304381Y

CN2304381Y - Standing wheeled chair

Info

Publication number: CN2304381Y
Application number: CN 97225293
Authority: CN
Inventors: 罗月惠
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-06-19
Filing date: 1997-06-19
Publication date: 1999-01-20
Anticipated expiration: 2007-06-19

Abstract

The utility model discloses a standing type wheelchair, which is mainly composed of a wheelchair frame, a cushion, a back cushion, a driving mechanism, a pedal, a main wheel, an accessory wheel, etc., wherein, the driving mechanism is arranged in the cushion and the back cushion. The cushion and the back cushion can be supported straightly by the fitting of a worm rod, a worm wheel, a gear, a chain wheel, a chain, etc., which are arranged in the driving mechanism. The postures of users can be transformed from sitting postures into standing postures. The wheelchair can be much firmer in the standing postures by a fixing plate which is arranged in the pedal and can be drawn out. Thereby, the utility model can provide the efficacies that the bodies of the users can not be limited in one sitting posture, the bodies and the joints can be stretched, the functions of hearts and lungs can be strengthened, and bedsore can be prevented.

Description

Stand-up wheelchair

This utility model relates to a kind of stand-up wheelchair, refers to a kind of safe, the Wheelchair structure that can stand, sit especially.

Social prosperity is progressive now, compatriots' quality of the life also promotes gradually, some medical devices are also constantly brought forth new ideas for catering to compatriots relatively, especially the relevant articles for use that the disabled used for the action inconvenience are constantly brought forth new ideas especially, and wherein wheelchair is more common product, but the structure of generally commonly using wheelchair mostly at laborsaving electric walking flexibly, can climb, aspect improvement such as outward appearance, its structure still is fixed, also be and be the fixedly removable chair of sitting posture, can't have the variation of other posture, hence one can see that, and it is commonly used wheelchair have its disappearance on reality is used:

1, because fixing sitting posture, user keeps certain sitting posture for a long time, causes the long-term burden of the lower part of the body, as the activity muscles and bones of desiring to stand is must be by crutch etc. auxiliary or helped by its people, very inconvenient.

2, again because of the long-term fixing sitting posture that keeps,, cause the deficiency of user quantity of motion so must reduce its motion chance and quantity of motion, cause easily that the joint is rigid, cardio-pulmonary function attenuating, blood circulation difference etc. uncomfortable.

3, more serious user, as serious lower limb disability, spinal cord injury etc., its underpart can't be from side's action, and the extended immobilization sitting posture easily causes the bottom decubital ulcer to fester.

The main purpose of this utility model ties up in a kind of stand-up wheelchair is provided, and having the safety of height, and is available for users to the station and sits.

For reaching above-mentioned purpose, this utility model comprises wheel carrier, medicated cushion, back pad, driving mechanism, major and minorly takes turns, pedal etc. form.Wherein: wheel carrier is the body frame of a wheelchair, be that a preceding foot rest bottom is provided with accessory whorl before it, and before two, connect a front rail between foot rest, and the middle section is provided with its next pedal bolster of respectively establishing of a worm screw seat thereon, be that a rear leg bottom is provided with main wheel behind the wheel carrier in addition, and respectively be provided with a boosting bar in its top, then connect a rear transverse rod between two rear legs, also be provided with a worm screw seat on it, in between two rear legs of rear transverse rod top, be provided with a sway bar in addition, respectively connect a side lever in forward and backward foot rest side, and respectively be provided with a medicated cushion bogie side frame thereon, can bear medicated cushion in last.Medicated cushion is formed by laying cushion on the medicated cushion internal frame, and back pad is formed by laying cushion on the back pad internal frame, driving mechanism is located in the medicated cushion internal frame and back pad internal frame bottom, on back pad, respectively be provided with a balustrade panel in addition, and the back side is near being provided with a stator with the medicated cushion junction, its seat cushion is embedded in the wheel carrier medicated cushion bogie side frame, and the back pad bottom is embedded in the medicated cushion tail end, and between ground, position two rear legs.Driving mechanism comprises driving gear that one group of worm screw and worm gear, two assembly close and driven gear, two groups of sprocket wheels and chain, every group of gear and sprocket wheel all have wholeheartedly through-drive, its worm screw is located on the worm screw seat of the forward and backward cross bar of wheel carrier, and worm gear and two groups of masters, driven gear and one group of sprocket wheel are located at medicated cushion internal frame Inner Front End, one group of sprocket wheel then is located at back pad internal frame bottom, and two groups of sprocket wheels are then by chain drive.Main wheel is located at the rear leg two bottom sides, and is connected by wheel shaft, foot rest bottom before accessory whorl is located at.The pedal support at pedal two ends is located in the pedal bolster, but respectively is provided with the fixing head of a pull in addition in the pedal two bottom sides.

With above-mentioned each member combination, earlier driving mechanism is assembled in medicated cushion and the back pad, worm screw is embedded on the worm screw seat, the axle that again two ends is provided with a driving gear and a worm gear is fixedly arranged on medicated cushion internal frame front end, the two ends of its axle are then stretched out by medicated cushion internal frame both sides and are embedded on the medicated cushion side plate, the axle that other is provided with driven gear and sprocket wheel then be located at after the last group of axle and the embedding thing in the medicated cushion internal frame, driving gear is meshed with driven gear, the axle that another group is provided with sprocket wheel then is fixedly arranged on back pad internal frame bottom, the two ends of its axle are then stretched out by back pad internal frame both sides and are embedded on the medicated cushion internal frame, again chain is loaded between two groups of sprocket wheels, to install the seat of driving mechanism this moment again, the back pad internal frame is embedded on the wheel carrier, and worm gear is sticked on the worm screw.Pass through rotary worm, drive worm gear and rotate and drive in the lump slowly rise forward of medicated cushion forward, and also forward rotate with the driving gear of worm gear concentric shafts this moment, and then the driven gear that drive is engaged with rotates backward, and the equidirectional rotation of the sprocket wheel that rotates concentric shafts simultaneously, driving the sprocket wheel that is positioned at back pad internal frame bottom by the transmission of chain again rotates in the same way, each member that back pad is receded on medicated cushion because of driving machine mechanism is synchronization action, therefore when the medicated cushion distance that rises, the same inclination of back pad one distance, when medicated cushion and back pad are a straight line, the stator that is positioned at the back pad back side block medicated cushion no longer forward the time till, be positioned at the user on the wheelchair this moment, can be converted to stance by sitting posture, return sitting posture as long as worm screw is rotated in the opposite direction its seat if want conversion, back pad extensive the covering that then can slowly descend is sitting posture.

This utility model is located at the sway bar between two rear legs of rear transverse rod top, and the position of back pad in the time of can supporting sitting posture avoids back pad too to tilt, and the stator of being located at the back pad back side can prevent that the back pad support is straight and too tilts during for stance, increases its safety.

Pedal of the present utility model can be adjusted upper and lower distance, but respectively is provided with the fixing head of a pull in addition in the pedal two bottom sides, can pull it the steadiness that increases wheelchair when standing.

After adopting said structure, this utility model is by cooperations such as the worm screw in the driving mechanism, worm gear, gear, sprocket wheel, chains, can make the support of medicated cushion and back pad straight, allow user be transformed to stance by sitting posture, and make wheelchair more firm when standing mode by the fixing head that can pull out in the pedal, and then the health that user is provided is not limited to a sitting posture, and extensible health, unfolds the joint, strengthens cardio-pulmonary function and prevents the effect of decubital ulcer.

Below in conjunction with drawings and Examples this utility model is further described.

Fig. 1 is the schematic perspective view of this utility model;

Fig. 2 is the driving mechanism presentation graphs of this utility model;

Fig. 3 is the medicated cushion and the back pad support deixis intention of this utility model.

At first see also Fig. 1, it is mainly constructed and comprises a wheel carrier 01, one medicated cushion 10, one back pad 12, driving mechanism 20, one is main,

accessory whorl

30,32, institutes such as one pedal 40 form, wherein: wheel carrier 01 is the body frame of a wheelchair, it before it preceding foot rest 02, the bottom is provided with

accessory whorl

32, and 02 of foot rest connects a front rail 05 before two, and the middle section is provided with a worm screw seat 06 thereon, its next pedal bolster 08 of respectively establishing, be a rear leg 03 behind the wheel carrier 01 in addition, the bottom is provided with main wheel 30, and respectively be provided with a boosting bar 09 in its top, 03 of two rear leg then connect a rear transverse rod 05, also are provided with a worm screw seat 06 on it, are provided with anti-dumping phase 101 in 03 of rear transverse rod 05 top two rear leg in addition, can avoid back pad 12 too to tilt, in addition in preceding,

rear leg

02,03 side respectively connects a side lever 07, and respectively is provided with a medicated cushion bogie side frame 04 thereon, can bear medicated cushion 10 in last.Medicated cushion 10 is formed by laying cushion on the medicated cushion internal frame 11, back pad 12 is formed by laying cushion on the back pad internal frame 13, its driving mechanism 20 is located in the medicated cushion internal frame 11 and back pad internal frame 13 bottoms, on back pad 12, respectively be provided with a balustrade panel 14 in addition, and the back side can prevent from too to tilt when back pad 12 supports are straight near being provided with a stator 15 with medicated cushion 10 junctions, and its seat cushion 10 is embedded in the wheel carrier 01 medicated cushion bogie side frame 04, back pad 12 bottoms are embedded in medicated cushion 10 tail ends, and between two rear legs 03.Driving mechanism 20 comprises driving gear 23 that one group of worm screw 21 and worm gear 22, two assembly close and driven gear 24, two groups of sprocket wheels 25 and chains 26, every group of gear or sprocket wheel all have an axle 27 transmissions, its worm screw 21 is located on the worm screw seat 06 of wheel carrier 01 forward and backward cross bar 05, and worm gear 22 and two groups of masters, 23,24 and one groups of sprocket wheels 25 of driven gear are located at medicated cushion internal frame 11 Inner Front Ends, one group of 25 on sprocket wheel is located at back pad internal frame 13 bottoms, and 25 on two groups of sprocket wheels are by chain 26 transmissions.Main wheel 30 is located at rear leg 03 two bottom sides, and is connected by wheel shaft 31, and accessory whorl 32 is located at preceding foot rest 02 bottom.The pedal support 41 at pedal 40 two ends is located in the pedal bolster 08, and can be in interior adjustment distance up and down, but respectively is provided with the fixing head 42 of a pull in addition in pedal 40 two bottom sides, can pull it the steadiness that increases the frame wheelchair when standing.

The fashionable Fig. 2 that sees also of above-mentioned each component sets, driving mechanism 20 is assembled in medicated cushion 10 and the back pad 12 earlier, worm screw 21 is embedded on the worm screw seat 06 of forward and backward cross bar 05, the axle 27 that again two ends is provided with a driving gear 23 and a worm gear 22 is fixedly arranged on medicated cushion internal frame 11 front ends.The two ends of its axle 27 are then stretched out by medicated cushion internal frame 11 both sides and are embedded on the medicated cushion side plate 04, whole medicated cushion 10 can be rotated on medicated cushion bogie side frame 04, other is provided with driven

gear

24 and 27 of the axles of sprocket wheel 25 and is located at after the last group of axle 27 and is embedded in the medicated cushion internal frame 11, driving gear 23 is meshed with driven gear 24 and drives driven gear 24 and rotate in the opposite direction, 27 of the axles that another group is provided with sprocket wheel 25 are fixedly arranged on back pad internal frame 13 bottoms, the two ends of its axle 27 are then stretched out by back pad internal frame 13 both sides and are embedded on the medicated cushion internal frame 11, make whole back pad 12 drive and on medicated cushion 10, rotate by the chain of being located on two sprocket wheels 25 26, to install the seat of driving mechanism 20 this moment again,

back pad

10,12 are embedded on the wheel carrier 01, worm gear 22 is sticked on the worm screw 21, pedal support 41 with pedal 40 is installed in the pedal bolster 08 again, will lead at last again,

accessory whorl

30,31 be installed in before, rear leg 02, promptly finish its combination on 03.

The combination back occupation mode of above-mentioned each member is as follows:

Wheelchair sees also Fig. 3 when will be transformed to stance by sitting posture, earlier pedal 40 is extended ground, and with the fixing head 42 of both sides pull out make the wheel seat base more firm, utilize a crank rotary worm 21 again, then driving worm gear 22 rotates forward, and drive medicated cushion 10 in the lump and slowly rise forward, and also forward rotate with the driving gear 23 of worm gear 22 concentric shafts 27 this moment, and then the driven gear 24 that drive is engaged with rotates backward, and rotate the sprocket wheel 25 equidirectional rotations of concentric shafts 27 simultaneously, driving the sprocket wheel 25 that is positioned at back pad 12 bottoms by the transmission of chain 26 again rotates in the same way, back pad 12 is receded on medicated cushion 10, because of each member of its driving mechanism 20 is synchronization action, therefore when medicated cushion 10 risings one distance, back pad 12 same inclination one distances, when medicated cushion 10 and back pad 12 are a straight line, the stator 15 that is positioned at back pad 12 back sides block medicated cushion 10 no longer forward the time till, be positioned at the user on the wheelchair this moment, can be changed to stance by sitting posture, return sitting posture as long as worm screw 21 is rotated in the opposite direction if want conversion, its seat,

back pad

10,12 can slowly drop to normal position, and the sway bar 101 of 03 on crus curvilineum frame prevents back pad 12 hypsokinesis, but protects that user is stood and safety during sitting by the stator 15 and the design desire of sway bar 101.

Claims

1, a kind of stand-up wheelchair, mainly comprise: a wheel carrier, one medicated cushion, one back pad, one driving mechanism, one is main, accessory whorl, one pedals etc. are formed, it is characterized in that: wheel carrier is the body frame of a wheelchair, be that a preceding foot rest bottom is provided with accessory whorl before it, and before two, connect a front rail between foot rest, and the middle section is provided with a worm screw seat thereon, its next pedal bolster of respectively establishing, be that a rear leg bottom is provided with main wheel behind the wheel carrier in addition, and respectively be provided with a boosting bar in its top, then connect a rear transverse rod between two rear legs, also be provided with a worm screw seat on it, between two rear legs of rear transverse rod top, be provided with a sway bar in addition, in preceding, the rear leg side respectively connects a side lever, and on base, respectively be provided with a medicated cushion bogie side frame, can hold into medicated cushion in last; Medicated cushion is formed by laying cushion on the medicated cushion internal frame, and back pad is formed by laying cushion on the back pad internal frame, driving mechanism is located in the medicated cushion internal frame and back pad internal frame bottom, on back pad, respectively be provided with a balustrade panel in addition, and the back side is near being provided with a stator with the medicated cushion junction, its seat cushion is embedded in the wheel carrier medicated cushion bogie side frame, and the back pad bottom is embedded in the medicated cushion tail end, and between two rear legs; Driving mechanism comprises driving gear and the driven gear that one group of worm screw and worm gear, two assembly are closed, two groups of sprocket wheels and chain, every group of gear and sprocket wheel all have wholeheartedly through-drive, its worm screw is located on the worm screw seat of the forward and backward cross bar of wheel carrier, and worm gear and two groups of masters, driven gear and one group of sprocket wheel are located at medicated cushion internal frame front end, one group of sprocket wheel then is located at back pad internal frame bottom, and two groups of sprocket wheels are then by chain drive; Main wheel is located at the rear leg two bottom sides, and is connected by wheel shaft, foot rest bottom before accessory whorl is located at; The pedal support at pedal two ends is located in the pedal bolster, but respectively is provided with the fixing head of a pull in addition in the pedal two bottom sides; The axle that two ends are provided with a driving gear and a worm gear is fixedly arranged on medicated cushion internal frame front end, the two ends of its axle are then stretched out by medicated cushion internal frame both sides and are embedded on the medicated cushion side plate, other is provided with passive tooth and does and then be located at after the last group of axle with the axle of sprocket wheel and be embedded in the medicated cushion internal frame, driving gear is meshed with driven gear, the axle that another group is provided with sprocket wheel then is fixedly arranged on back pad internal frame bottom, the two ends of its axle are then stretched out by back pad internal frame both sides and are embedded on the medicated cushion internal frame, chain is loaded between two groups of sprocket wheels, installed the seat of driving mechanism, the back pad internal frame is embedded on the wheel carrier, and worm gear is sticked in worm screw.

2, stand-up wheelchair as claimed in claim 1 is characterized in that: but the pedal two bottom sides respectively is provided with the fixing head of a pull.