CN109758310B - Hand push wheelchair with high performance - Google Patents
Hand push wheelchair with high performance Download PDFInfo
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- CN109758310B CN109758310B CN201910095560.2A CN201910095560A CN109758310B CN 109758310 B CN109758310 B CN 109758310B CN 201910095560 A CN201910095560 A CN 201910095560A CN 109758310 B CN109758310 B CN 109758310B
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- 238000003466 welding Methods 0.000 claims description 17
- 239000004744 fabric Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
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- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 230000005484 gravity Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 14
- 238000012423 maintenance Methods 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000000474 nursing effect Effects 0.000 description 4
- 238000012876 topography Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 230000007306 turnover Effects 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
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Abstract
A hand push wheelchair with extremely high performance comprises a bracket, a folding pipe sleeve, a folding pipe seat frame, a supporting rod, a seat pipe, a seat cushion, a seat pipe bracket, an anti-loosening hand grip, a brake sleeve, a brake handle, a brake cable, a brake assembly, a back pad, a handrail pad, a group protection plate, pedals, rear wheels, front wheels, a detachable structure and pedals; the bracket comprises a handrail tube, a backrest tube and a leg rest tube; the detachable structure comprises a mounting seat, a fixing piece, a first flat pad, a second flat pad, a mounting seat spring pad, a fastening bolt, a fastening nut, a fixing piece spring pad and a cover-shaped locknut; the support has higher structural strength and can be detached and replaced; the release of the wheelchair can be assisted by the elasticity of the back cushion and the gravity of the seat tube, so that the operation is labor-saving and simple; the structure of the components is improved, the components can be independently disassembled and replaced, the service life is long, and the practicability is high, such as anti-loosening holding, group protection plates, pedals, front wheels and pedals.
Description
Technical Field
The invention relates to the field of wheelchairs, in particular to a hand-push wheelchair with extremely high performance.
Background
The wheelchair is an important moving tool for rehabilitation, turnover transportation, treatment and outgoing activities of wounded and disabled persons, is provided with wheels, not only meets the requirements of the disabled persons on limbs and the mobility impaired persons for riding instead of walk, but also is convenient for the family members to move and care the patients, so that the patients can exercise and participate in social activities by means of the wheelchair. The common wheelchair generally comprises a foldable frame of the wheelchair, front wheels, rear wheels, left and right pedals, left and right detachable armrests, a handle brake device, a seat, a backrest bag, a sheet storage and storage device, a bedpan and a urine receiving bag hook.
Wheelchair with various structures exists in the current market, the wheelchair technology reaches the mature ground after continuous innovation and transformation of various factories, but the prior art still has some defects: (1) The whole vehicle mostly adopts an integral structure, the parts are assembled and are usually connected in a welding mode, when parts at certain positions are damaged, the wheelchair is required to be directly and integrally replaced, the damaged parts cannot be independently disassembled and replaced, and the possibility of maintenance is avoided. (2) The folding and unfolding functions of the wheelchair are time-consuming and labor-consuming when in use, and the operation is complex. (3) The wheelchair has difficulty in passing through raised terrains, and the wheelchair is low in adaptability to complex terrains. (4) The wheelchair main frame is connected in a welding mode, more welding spots are formed, and the frame structure is low in strength. (5) The pedal of the wheelchair is uncomfortable to use, and the sole of the user easily slides off the pedal.
Disclosure of Invention
In order to solve the problems, the invention discloses a hand-push wheelchair with extremely high performance, which comprises the following specific technical scheme: a hand push wheelchair with extremely high performance comprises a bracket, a folding pipe sleeve, a folding pipe seat frame, a supporting rod, a seat pipe, a seat cushion, a seat pipe bracket, an anti-loosening hand grip, a brake sleeve, a brake handle, a brake cable, a brake assembly, a back pad, a handrail pad, a group protection plate, pedals, rear wheels, front wheels and pedals;
The two brackets are distributed on two sides, each bracket comprises a handrail tube, a backrest tube and a leg rest tube, and two ends of the backrest tube and the leg rest tube are fixed through welding and form an integrated structure; the armrest pipe is arranged at the top end of the leg rest pipe, one end of the armrest pipe is fixedly connected with the backrest pipe through a bolt, and the other end of the armrest pipe is fixedly connected with the leg rest pipe through a bolt; an integral structure for supporting a wheelchair;
the number of the folding pipes is four, the folding pipes are arranged between the two brackets, and the centers of every two folding pipes are in rotary connection through the fastener; a bracket for folding the seat cushion;
the folding pipe sleeves are arranged at the bottom end of each folding pipe and sleeved on the outer side of the bottom end of each folding pipe; the device is used for protecting the bottom end of the folding pipe;
The four folding tube seat frames are arranged on the inner side of the bottom end of each back tube, and one side of each folding tube seat frame is fixedly connected with the back tube; the folding tube is connected with the folding tube seat frame in a rotating way by sequentially penetrating the folding tube seat frame, the folding tube sleeve and the folding tube through the fasteners; a steering structure for folding the bottom end of the tube and the bracket;
One end of the supporting rod is rotationally connected with the back pipe through a fastener, and the other end of the supporting rod is rotationally connected with the top end of the folding pipe through a fastener; the folding pipe is used for connecting the backrest pipe and the folding pipe;
The seat tube is arranged at the top end of the folding tube and is used for expanding and supporting the seat cushion;
the two ends of the cushion are connected with the seat tube;
The seat tube brackets are four in number and are arranged on the inner side of the top end of each leg leaning tube; when the wheelchair is in an unfolding state, the wheelchair is used for supporting the seat pipes at the two ends and positioning the folding rod;
The anti-loosening hand is arranged at the top ends of the back rest pipes at two sides, one end of the anti-loosening hand is provided with an anti-loosening hand holding screw hole, the anti-loosening hand holding is sleeved at the outer side of the top end of the back rest pipe through one end of the anti-loosening hand holding, and the anti-loosening hand holding is fixedly connected with the back rest pipe through the screw hole and the back rest pipe by bolts; a handle for pushing the wheelchair;
the brake sleeve is arranged at one end of the anti-loosening hand grip and sleeved on the outer side of the top end of the back-rest pipe;
The brake handle is arranged at the bottom end of the brake sleeve and used for controlling the braking of the wheelchair;
The brake cable is used for connecting the brake handle and the brake assembly;
The brake assembly is arranged on the outer side of each back rest pipe; the brake device is used for clamping the rear wheel and braking the rear wheel to rotate;
The two ends of the back cushion are connected with the back rest pipes on the two sides; leaning for the back of a wheelchair;
the handrail pad is arranged on the top surface of the handrail tube; for placing arms and palms with a person;
the group protection plates are arranged on the top surfaces of the back rest pipes at two sides, group protection plate screw holes are formed in two sides of the group protection plates, and the group protection plates are connected with the brackets through the cooperation of fasteners and the group protection plate screw holes; the device is used for reinforcing the connecting handrail tube and the backrest tube and simultaneously limiting articles on the cushion from sliding to two sides of the wheelchair;
The pedals are arranged at the bottom ends of the back rest pipes at the two sides, and the pedals penetrate through the back rest pipes through the fasteners to realize rotary connection; the force bearing component is used for trampling and raising the front end of the wheelchair;
the rear wheels are arranged at the outer sides of the bottom ends of the back rest pipes at the two sides and are in rotary connection with the back rest pipes through bearings; a driving wheel for wheelchair travel;
the front wheels are arranged at the bottom ends of the back rest pipes at the two sides and are fixedly connected with the back rest pipes through a detachable structure; steering wheels for wheelchair travel;
The pedals are arranged at the bottom ends of the leg rest pipes at the two sides and are fixedly connected with the leg rest pipes through fasteners; for placing the sole of the foot by the user.
Further, the armrest pipe is in a large arc structure, the back pipe is a bent pipe with a Z-shaped structure, and the leg rest pipe is a bent pipe with an inverted L-shaped structure; the bending parts of the backrest pipe and the leg rest pipe are all arc-shaped.
Further, each seat tube bracket is symmetrically arranged on the leg rest tubes at two sides; one side of the seat tube bracket is in a groove-shaped structure to form a back tube groove, the other side of the seat tube bracket is in an arc-shaped structure, the center of the seat tube bracket is hollow, and the top end of the seat tube bracket is in a groove-shaped structure to form a seat tube groove; the back support pipe groove is clamped into the inner side of the back support pipe, and penetrates through the seat pipe bracket and the back support pipe through the fastener, so that the seat pipe bracket is fixedly connected with the back support pipe; the seat tube is clamped into the seat tube groove, so that the seat tube is in supporting connection with the seat tube bracket.
Further, one end of the anti-loosening hand grip is provided with hand grip anti-slip patterns.
Furthermore, the back pad is made of elastic cloth.
Furthermore, the periphery of the group protection plate is in an arc-shaped structure; one side of the group protection plate is in a hollow structure, the other side of the group protection plate is in a groove structure, and the label is arranged in the groove of the group protection plate.
Further, the detachable structure of the front wheel comprises a mounting seat, a fixing sheet, a first flat pad, a second flat pad, a mounting seat spring pad, a fastening bolt, a fastening nut, a fixing sheet spring pad and a cover-shaped locknut; the bottom end of the back rest pipe is provided with a frame connecting hole; the top end of the front wheel is in a rod-shaped structure to form a front wheel supporting rod, and the periphery of the top end of the front wheel supporting rod is provided with a supporting rod external thread; the mounting seat comprises a mounting cylinder and a mounting sheet, wherein the mounting cylinder is cylindrical in shape and is of a hollow structure, and a mounting seat hole is formed in the mounting cylinder; the number of the mounting pieces is two, a mounting piece hole is formed in the center of each mounting piece, the mounting pieces are arranged on two sides of the mounting cylinder, and one side of the mounting seat is attached to one side of the back tube; the fixing piece is in a 匚 -shaped structure, fixing piece holes are formed in the bottom end and the top end of the fixing piece, and two ends of the fixing piece are sequentially clamped on the outer sides of the backrest tube and the mounting cylinder; the first flat pad is arranged on one side of the mounting piece, the second flat pad is arranged on one side of the back rest pipe, the mounting seat elastic pad is arranged on one side of the second flat pad, and the fastening bolt sequentially penetrates through the first flat pad, the mounting seat hole, the frame connecting hole, the second flat pad and the mounting seat elastic pad and is matched with the fastening nut to realize the fixed connection of the mounting seat and the back rest pipe; the inner wall of the cover-shaped locknut is in a threaded shape, the front wheel supporting rod sequentially penetrates through the fixing piece hole, the mounting seat hole and the fixing piece elastic pad, and is matched with the inner wall of the cover-shaped locknut through the external threads of the supporting rod, so that the front wheel supporting rod is fixedly connected with the cover-shaped locknut.
Further, the pedal surface is provided with pedal anti-skid patterns, and one side of the pedal is vertically provided with a pedal baffle plate which is fixedly connected with the pedal and is of an integrated structure.
Further, the fastener is one or more of a rivet, an expansion screw, a bolt, a nut, a screw and a self-tapping screw.
The invention has the structural principle that:
1. and (5) folding and unfolding the wheelchair. (1) when the wheelchair is changed from the collapsed state to the open state. The support on the two sides of laminating is stretched to the both sides, back cushion self has tension, back cushion is with the back pipe top outside extrusion of both sides, back pipe bottom is stretched to outside simultaneously, every folding pipe bottom is in folding tube seat frame internal rotation, the folding pipe of both sides rotates through the fastener in the middle, the angle of opening and shutting between the folding pipe grow, both sides bracing piece and folding pipe cooperation rotate simultaneously, the seat pipe on folding pipe top descends through gravity, fall into in the seat pipe recess on the seat pipe bracket of both sides support side, both sides seat pipe is fixed with both sides seat pipe bracket, accomplish the opening of wheelchair. (2) when the wheelchair is changed from the open state to the collapsed state. The two side seat pipes are ejected out of the seat pipe grooves upwards through external force, the two side seat pipes are folded inwards, the support rods on the two sides are matched with the top ends of the folding pipes to rotate, the folding pipes on the two sides rotate through the fasteners in the middle, the opening and closing angle between the folding pipes is reduced, the bottom end of each folding pipe rotates in the folding pipe seat frame to drive the bottom end of the backrest pipe to be folded inwards at the same time, the top end of the backrest pipe is folded inwards at the same time, and the back cushion is folded; when the seat pipes at the two sides are completely jointed, the brackets at the two sides are driven to be completely jointed, so that the folding state of the wheelchair is achieved.
2. And (5) driving the wheelchair. The user sits on the cushion, leans back against the back pad, arms are placed on the armrest pad, and feet are placed on the pedals; the nursing staff holds the anti-loosening hand and pushes the wheelchair to run, when the wheelchair encounters raised terrains such as steps, the nursing staff breaks off the pedals downwards, steps on the pedals, presses the anti-loosening hand downwards, lifts the front end of the wheelchair, and the front wheel is in a suspended state and can push the wheelchair forwards to cross the raised terrains; when the pedal is not used, the pedal can be folded upwards.
3. And (3) mounting and replacing the detachable structure of the front wheel. The first flat pad, the mounting seat hole, the frame connecting hole, the second flat pad and the mounting seat spring pad are sequentially penetrated through by the fastening bolts, and the mounting seat is fixedly connected with the backrest pipe by the fastening nuts; then the front wheel supporting rod sequentially penetrates through the fixing piece hole, the mounting seat hole and the fixing piece elastic pad, and is locked by matching the internal thread of the cover-shaped locknut with the external thread of the supporting rod, so that the front wheel supporting rod is fixedly connected with the cover-shaped locknut; the mounting seat, the fixing sheet and the backrest tube form an integrated structure, and the wheel is fixedly connected with the backrest tube.
The beneficial effects of the invention are as follows:
(1) The support structure is designed into a form composed of the armrest pipe, the backrest pipe and the leg rest pipe, each set of price is in an integrated bent pipe form, the bent part of the bent pipe is in a circular arc structure, the structural strength of each set of price is improved, and each assembly is attractive in appearance; the whole structure of the bracket is welded and connected at the joint of the head and tail of the backrest pipe and the leg rest pipe by argon arc welding, and the number of welding points is only two, so that the number of the welding points is less than that of the welding points of the traditional wheelchair bracket, the integrity of the bracket is stronger, the structural strength is higher, and the assembly process is simplified; the armrest pipe is connected with the backrest pipe and the leg rest pipe by bolts respectively, the connection mode is simple, the installation is rapid, and the armrest pipe can be disassembled and replaced; the integral strength of the bracket is higher than that of the traditional wheelchair bracket, and the assembly efficiency is high.
(2) The anti-loosening hand-held type is improved, the hand held used in the market is usually made of rubber, the hand held and the handle are bonded by glue, the service life is short, the hand held and the handle can fall off after long-time use, and the connection is unstable; at present, the anti-loosening hand is sleeved at the top end of the back rest pipe, and the anti-loosening hand is high in connection strength and cannot fall off in a bolt fixing mode; when the anti-loosening hand is damaged, the loosening hand can be independently used for replacing the loosening hand by loosening the bolts, and the replacement is convenient.
(3) The invention is additionally provided with the group protection plate structure, the shape of the group protection plate adopts an arc structure, and the appearance is beautiful; set up the joint strength that protects the crowd board and strengthened both sides support, protect crowd board itself to carry out fretwork and recess design, alleviateed self weight when guaranteeing structural strength, protect crowd board and support and pass through bolt-up to be connected, joint strength is high, and protect crowd board can dismantle, change, protect crowd board simultaneously and can prevent article on the cushion from the wheel chair both sides landing, play the guard action.
(4) The invention improves the structural form of the front wheel of the wheelchair, changes the traditional fixed connection form of welding and riveting the front wheel and the frame into the connection form of adopting the fastening bolts for the wheels and the frame, realizes the detachable connection of the front wheel and the frame, and can randomly detach the front wheel and the frame; when the wheel is worn or the wheel assembly is damaged, the front wheel can be partially disassembled and replaced, the wheelchair body is not required to be integrally replaced, the structure of the wheelchair body is not required to be damaged, the structural integrity of the wheelchair body can be ensured, the structural strength of the wheelchair body is kept, the purpose of replacing the wheel partial parts without breaking the integral structure is achieved, the replacement and maintenance of the wheel are facilitated, the maintenance of the wheelchair is reduced, and the maintenance cost is reduced. The bump-proof capability of the wheel and the frame of the detachable structure is strong.
(5) According to the invention, the folding structure of the wheelchair is optimized and redesigned, the back cushion is made of elastic cloth, so that when the wheelchair is released, the support can be sprung towards two sides by means of the elasticity of the cloth of the back cushion, the folding pipes between the supports are driven to rotate, the seat pipes can be naturally clamped into the seat pipe brackets by matching with the gravity of the seat pipes, and the seat pipes and the support form a fixed whole, so that the release process of the wheelchair is completed; in the process, the release of the wheelchair is assisted by the elasticity of the back cushion and the gravity of the seat tube, the user can finish the process with less force, the operation is labor-saving, the operation process is simple and convenient, the release process is smooth and rapid, and the efficiency of the release process is high.
(6) According to the invention, the pedals are additionally arranged on the bottom side of the wheelchair, so that the pedals can be stepped down, the front end of the wheelchair can be easily lifted up and can cross raised ground topography, the use flexibility of the wheelchair is improved, and the adaptability of the wheelchair to complex topography during running is improved; the pedals and the support adopt a rotating structure, and can be retracted when the pedals are not needed.
(7) According to the invention, the structural form of the pedal is improved, the pedal baffle is arranged on the side edge of the pedal, when a user places feet on the pedal, the feet can be prevented from sliding off the pedal through the shielding effect of the pedal baffle, the comfort level of the feet of the user is improved, and the structural practicability is strong.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the stent of the present invention.
Fig. 3 is a schematic view of the connection structure of the folding tube of the present invention.
Fig. 4 is a schematic view of the wheelchair according to the present invention in an open state.
Fig. 5 is a schematic view of the wheelchair according to the present invention in a collapsed state.
Fig. 6 is an enlarged schematic view of a portion of fig. 3 according to the present invention.
Fig. 7 is an enlarged schematic view of part B of fig. 3 according to the present invention.
Fig. 8 is a schematic view of the structure of the anti-loosening hand grip of the present invention.
Fig. 9 is a schematic structural view of a cluster plate of the present invention.
Fig. 10 is a schematic view of the structure at the front wheel of the present invention.
Fig. 11 is a schematic view of the mounting structure of the front wheel of the present invention.
Fig. 12 is a schematic structural view of the pedal of the present invention.
List of reference numerals: the bicycle comprises a bracket 1, an armrest tube 1-1, a backrest tube 1-2, a frame connecting hole 1-21, a leg rest tube 1-3, a folding tube 2, a folding tube sleeve 3, a folding tube seat frame 4, a supporting rod 5, a seat tube 6, a seat cushion 7, a seat tube bracket 8, a backrest tube groove 8-1, a seat tube groove 8-2, a locking handle 9, a locking handle screw hole 9-1, a holding anti-skid pattern 9-2, a brake sleeve 10, a brake handle 11, a brake cable 12, a brake assembly 13, a back pad 14, an armrest pad 15, a group protection plate 16, a group protection plate screw hole 16-1, a label 16-2, a pedal 17, a rear wheel 18, a front wheel 19, a front wheel supporting rod 19-1, a supporting rod external screw 19-11, a detachable structure 20, a mounting seat 20-1, a mounting cylinder 20-11, a mounting seat hole 20-12, a mounting piece 20-13, a mounting piece hole 20-14, a fixing piece 20-2, a fixing piece hole 20-21, a first flat pad 20-3, a second flat pad 20-4, a mounting seat spring pad 20-6, a fastening pad 20-7, a fastening screw cap 21, a fastening nut 20-21, a pedal plate 21-shaped nut 20-21, a pedal plate 21 and a pedal plate 21.
Detailed Description
In order to make the technical scheme of the invention clearer and more definite, the invention is further described below with reference to the accompanying drawings, and any scheme obtained by carrying out equivalent substitution and conventional reasoning on the technical characteristics of the technical scheme of the invention falls into the protection scope of the invention. The fixing arrangement and fixing structure of the fixing connection mentioned in this embodiment are all known techniques known to those skilled in the art, such as welding, screw connection, bolt-nut connection, riveting, etc. The front wheel of the invention adopts a product with a Chinese invention published patent number of CN201120094541.7, a wheelchair caster, the structural principle of which is a well known technology of the person skilled in the art, and the description is omitted in the invention.
Referring to fig. 1, a hand push wheelchair with extremely high performance comprises a bracket, a folding pipe sleeve, a folding pipe seat frame, a supporting rod, a seat pipe, a cushion, a seat pipe bracket, an anti-loosening hand grip, a brake sleeve, a brake handle, a brake cable, a brake assembly, a back pad, an armrest pad, a group protection plate, a pedal, a rear wheel, a front wheel, a detachable structure and a pedal; the number of the brackets is two, the two brackets are distributed on two sides, each bracket comprises a handrail tube, a backrest tube and a leg rest tube, and the two ends of the backrest tube and the two ends of the leg rest tube are fixed through welding and form an integrated structure; the armrest pipe is arranged at the top end of the leg rest pipe, one end of the armrest pipe is fixedly connected with the backrest pipe through a bolt, and the other end of the armrest pipe is fixedly connected with the leg rest pipe through a bolt; the folding pipes are arranged between the two brackets, and the centers of each two folding pipes are rotationally connected through a fastener; the folding pipe sleeves are arranged at the bottom ends of the folding pipes and sleeved outside the bottom ends of the folding pipes; the folding tube seat frame is arranged at the inner side of the bottom end of each back tube, one side of the folding tube seat frame is fixedly connected with the back tube, and the folding tube seat frame, the folding tube sleeve and the folding tube are sequentially penetrated through by the fasteners to realize the rotary connection of the folding tube and the folding tube seat frame; one end of the supporting rod is rotationally connected with the back pipe through a fastener, and the other end of the supporting rod is rotationally connected with the top end of the folding pipe through a fastener; the seat tube is arranged at the top end of the folding tube; two ends of the cushion are connected with the seat tube; the seat tube bracket is arranged on the inner side of the top end of each leg rest tube, and penetrates through the seat tube bracket and the backrest tube through a fastener to realize the fixed connection of the seat tube bracket and the backrest tube; the anti-loosening hand is arranged at the top ends of the back rest pipes at two sides, one end of the anti-loosening hand is provided with an anti-loosening hand holding screw hole, the anti-loosening hand holding is sleeved at the outer side of the top end of the back rest pipe through one end of the anti-loosening hand holding, and the anti-loosening hand holding is fixedly connected with the back rest pipe through the screw hole and the back rest pipe by bolts; the brake sleeve is arranged at one end of the anti-loosening hand grip and sleeved on the outer side of the top end of the back-rest pipe; the brake handle is arranged at the bottom end of the brake sleeve; the brake cable is connected with the brake handle and the brake assembly; the brake assembly is arranged on the outer side of each back rest pipe; two ends of the back cushion are connected with the back pipes at two sides; the armrest pad is arranged on the top surface of the armrest pipe; the group protection plates are arranged on the top surfaces of the back rest pipes at two sides, group protection plate screw holes are formed in two sides of the group protection plates, and the group protection plates are fixedly connected with the support through the cooperation of fasteners and the group protection plate screw holes; the pedals are arranged at the bottom ends of the back rest pipes at the two sides, and the pedals are penetrated through the pedals and the back rest pipes through the fasteners to realize rotary connection; the rear wheels are arranged at the outer sides of the bottom ends of the back rest pipes at the two sides and are in rotary connection with the back rest pipes through bearings; the front wheels are arranged at the bottom ends of the back rest pipes at the two sides and are fixedly connected with the back rest pipes through a detachable structure; the pedal is arranged at the bottom ends of the leg rest pipes at two sides and is fixedly connected with the leg rest pipes through fasteners.
As can be seen from fig. 2, the armrest pipe has a large arc structure, the back pipe has a Z-shaped bent pipe, and the leg rest pipe has an inverted L-shaped bent pipe; the bending parts of the backrest pipe and the leg rest pipe are all arc-shaped.
As can be seen with reference to fig. 3-7, each seat tube bracket is symmetrically arranged on the leg rest tubes at both sides; one side of the seat tube bracket is in a groove-shaped structure to form a back tube groove, the other side of the seat tube bracket is in an arc-shaped structure, the center of the seat tube bracket is hollow, and the top end of the seat tube bracket is in a groove-shaped structure to form a seat tube groove; the back support pipe groove is clamped into the inner side of the back support pipe, and penetrates through the seat pipe bracket and the back support pipe through the fastener, so that the seat pipe bracket is fixedly connected with the back support pipe; the seat tube is clamped into the seat tube groove, so that the seat tube is in supporting connection with the seat tube bracket.
As can be seen in fig. 8, one end of the anti-loosening hand grip is provided with a hand grip anti-slip pattern.
As can be seen from fig. 9, the periphery of the group protection plate is in an arc-shaped structure; one side of the group protection plate is in a hollow structure, the other side of the group protection plate is in a groove structure, and the label is arranged in the groove of the group protection plate.
Referring to fig. 10-11, the detachable structure of the front wheel comprises a mounting seat, a fixing sheet, a first flat pad, a second flat pad, a mounting seat spring pad, a fastening bolt, a fastening nut, a fixing sheet spring pad and a cover-shaped locknut; the bottom end of the back rest pipe is provided with a frame connecting hole; the top end of the front wheel is in a rod-shaped structure to form a front wheel supporting rod, and the periphery of the top end of the front wheel supporting rod is provided with a supporting rod external thread; the mounting seat comprises a mounting cylinder and a mounting sheet, wherein the mounting cylinder is cylindrical in shape and is of a hollow structure, and a mounting seat hole is formed in the mounting cylinder; the number of the mounting pieces is two, a mounting piece hole is formed in the center of each mounting piece, the mounting pieces are arranged on two sides of the mounting cylinder, and one side of the mounting seat is attached to one side of the back tube; the fixing piece is in a 匚 -shaped structure, fixing piece holes are formed in the bottom end and the top end of the fixing piece, and two ends of the fixing piece are sequentially clamped on the outer sides of the backrest tube and the mounting cylinder; the first flat pad is arranged on one side of the mounting piece, the second flat pad is arranged on one side of the back rest pipe, the mounting seat elastic pad is arranged on one side of the second flat pad, and the fastening bolt sequentially penetrates through the first flat pad, the mounting seat hole, the frame connecting hole, the second flat pad and the mounting seat elastic pad and is matched with the fastening nut to realize the fixed connection of the mounting seat and the back rest pipe; the inner wall of the cover-shaped locknut is in a threaded shape, the front wheel supporting rod sequentially penetrates through the fixing piece hole, the mounting seat hole and the fixing piece elastic pad, and is matched with the inner wall of the cover-shaped locknut through the external threads of the supporting rod, so that the front wheel supporting rod is fixedly connected with the cover-shaped locknut.
As can be seen by combining with fig. 12, the pedal surface is provided with pedal anti-skid patterns, and one side of the pedal is vertically provided with a pedal baffle plate which is fixedly connected with the pedal to form an integrated structure.
Further, the fastener is one or more of a rivet, an expansion screw, a bolt, a nut, a screw and a self-tapping screw.
The invention has the structural principle that:
1. and (5) folding and unfolding the wheelchair. (1) when the wheelchair is changed from the collapsed state to the open state. The support on the two sides of laminating is stretched to the both sides, back cushion self has tension, back cushion is with the back pipe top outside extrusion of both sides, back pipe bottom is stretched to outside simultaneously, every folding pipe bottom is in folding tube seat frame internal rotation, the folding pipe of both sides rotates through the fastener in the middle, the angle of opening and shutting between the folding pipe grow, both sides bracing piece and folding pipe cooperation rotate simultaneously, the seat pipe on folding pipe top descends through gravity, fall into in the seat pipe recess on the seat pipe bracket of both sides support side, both sides seat pipe is fixed with both sides seat pipe bracket, accomplish the opening of wheelchair. (2) when the wheelchair is changed from the open state to the collapsed state. The two side seat pipes are ejected out of the seat pipe grooves upwards through external force, the two side seat pipes are folded inwards, the support rods on the two sides are matched with the top ends of the folding pipes to rotate, the folding pipes on the two sides rotate through the fasteners in the middle, the opening and closing angle between the folding pipes is reduced, the bottom end of each folding pipe rotates in the folding pipe seat frame to drive the bottom end of the backrest pipe to be folded inwards at the same time, the top end of the backrest pipe is folded inwards at the same time, and the back cushion is folded; when the seat pipes at the two sides are completely jointed, the brackets at the two sides are driven to be completely jointed, so that the folding state of the wheelchair is achieved.
2. And (5) driving the wheelchair. The user sits on the cushion, leans back against the back pad, arms are placed on the armrest pad, and feet are placed on the pedals; the nursing staff holds the anti-loosening hand and pushes the wheelchair to run, when the wheelchair encounters raised terrains such as steps, the nursing staff breaks off the pedals downwards, steps on the pedals, presses the anti-loosening hand downwards, lifts the front end of the wheelchair, and the front wheel is in a suspended state and can push the wheelchair forwards to cross the raised terrains; when the pedal is not used, the pedal can be folded upwards.
3. And (3) mounting and replacing the detachable structure of the front wheel. The first flat pad, the mounting seat hole, the frame connecting hole, the second flat pad and the mounting seat spring pad are sequentially penetrated through by the fastening bolts, and the mounting seat is fixedly connected with the backrest pipe by the fastening nuts; then the front wheel supporting rod sequentially penetrates through the fixing piece hole, the mounting seat hole and the fixing piece elastic pad, and is locked by matching the internal thread of the cover-shaped locknut with the external thread of the supporting rod, so that the front wheel supporting rod is fixedly connected with the cover-shaped locknut; the mounting seat, the fixing sheet and the backrest tube form an integrated structure, and the wheel is fixedly connected with the backrest tube.
The beneficial effects of the invention are as follows:
(1) The support structure is designed into a form composed of the armrest pipe, the backrest pipe and the leg rest pipe, each set of price is in an integrated bent pipe form, the bent part of the bent pipe is in a circular arc structure, the structural strength of each set of price is improved, and each assembly is attractive in appearance; the whole structure of the bracket is welded and connected at the joint of the head and tail of the backrest pipe and the leg rest pipe by argon arc welding, and the number of welding points is only two, so that the number of the welding points is less than that of the welding points of the traditional wheelchair bracket, the integrity of the bracket is stronger, the structural strength is higher, and the assembly process is simplified; the armrest pipe is connected with the backrest pipe and the leg rest pipe by bolts respectively, the connection mode is simple, the installation is rapid, and the armrest pipe can be disassembled and replaced; the integral strength of the bracket is higher than that of the traditional wheelchair bracket, and the assembly efficiency is high.
(2) The anti-loosening hand-held type is improved, the hand held used in the market is usually made of rubber, the hand held and the handle are bonded by glue, the service life is short, the hand held and the handle can fall off after long-time use, and the connection is unstable; at present, the anti-loosening hand is sleeved at the top end of the back rest pipe, and the anti-loosening hand is high in connection strength and cannot fall off in a bolt fixing mode; when the anti-loosening hand is damaged, the loosening hand can be independently used for replacing the loosening hand by loosening the bolts, and the replacement is convenient.
(3) The invention is additionally provided with the group protection plate structure, the shape of the group protection plate adopts an arc structure, and the appearance is beautiful; set up the joint strength that protects the crowd board and strengthened both sides support, protect crowd board itself to carry out fretwork and recess design, alleviateed self weight when guaranteeing structural strength, protect crowd board and support and pass through bolt-up to be connected, joint strength is high, and protect crowd board can dismantle, change, protect crowd board simultaneously and can prevent article on the cushion from the wheel chair both sides landing, play the guard action.
(4) The invention improves the structural form of the front wheel of the wheelchair, changes the traditional fixed connection form of welding and riveting the front wheel and the frame into the connection form of adopting the fastening bolts for the wheels and the frame, realizes the detachable connection of the front wheel and the frame, and can randomly detach the front wheel and the frame; when the wheel is worn or the wheel assembly is damaged, the front wheel can be partially disassembled and replaced, the wheelchair body is not required to be integrally replaced, the structure of the wheelchair body is not required to be damaged, the structural integrity of the wheelchair body can be ensured, the structural strength of the wheelchair body is kept, the purpose of replacing the wheel partial parts without breaking the integral structure is achieved, the replacement and maintenance of the wheel are facilitated, the maintenance of the wheelchair is reduced, and the maintenance cost is reduced. The bump-proof capability of the wheel and the frame of the detachable structure is strong.
(5) According to the invention, the folding structure of the wheelchair is optimized and redesigned, the back cushion is made of elastic cloth, so that when the wheelchair is released, the support can be sprung towards two sides by means of the elasticity of the cloth of the back cushion, the folding pipes between the supports are driven to rotate, the seat pipes can be naturally clamped into the seat pipe brackets by matching with the gravity of the seat pipes, and the seat pipes and the support form a fixed whole, so that the release process of the wheelchair is completed; in the process, the release of the wheelchair is assisted by the elasticity of the back cushion and the gravity of the seat tube, the user can finish the process with less force, the operation is labor-saving, the operation process is simple and convenient, the release process is smooth and rapid, and the efficiency of the release process is high.
(6) According to the invention, the pedals are additionally arranged on the bottom side of the wheelchair, so that the pedals can be stepped down, the front end of the wheelchair can be easily lifted up and can cross raised ground topography, the use flexibility of the wheelchair is improved, and the adaptability of the wheelchair to complex topography during running is improved; the pedals and the support adopt a rotating structure, and can be retracted when the pedals are not needed.
(7) According to the invention, the structural form of the pedal is improved, the pedal baffle is arranged on the side edge of the pedal, when a user places feet on the pedal, the feet can be prevented from sliding off the pedal through the shielding effect of the pedal baffle, the comfort level of the feet of the user is improved, and the structural practicability is strong.
Claims (6)
1. A hand push wheelchair with extremely high performance comprises a bracket, a folding pipe sleeve, a folding pipe seat frame, a supporting rod, a seat pipe, a seat cushion, a seat pipe bracket, an anti-loosening hand grip, a brake sleeve, a brake handle, a brake cable, a brake assembly, a back pad, a handrail pad, a group protection plate, pedals, rear wheels, front wheels and pedals;
the two ends of the cushion are connected with the seat tube;
The seat tube brackets are four in number and are arranged on the inner side of the top end of each leg leaning tube; when the wheelchair is in an unfolding state, the wheelchair is used for supporting the seat pipes at the two ends and positioning the folding rod;
the brake sleeve is arranged at one end of the anti-loosening hand grip and sleeved on the outer side of the top end of the back-rest pipe;
The brake handle is arranged at the bottom end of the brake sleeve and used for controlling the braking of the wheelchair;
The brake cable is used for connecting the brake handle and the brake assembly;
The brake assembly is arranged on the outer side of each back rest pipe; the brake device is used for clamping the rear wheel and braking the rear wheel to rotate;
The two ends of the back cushion are connected with the back rest pipes on the two sides; leaning for the back of a wheelchair;
the handrail pad is arranged on the top surface of the handrail tube; for placing arms and palms with a person;
The pedals are arranged at the bottom ends of the back rest pipes at the two sides, and the pedals penetrate through the back rest pipes through the fasteners to realize rotary connection; the force bearing component is used for trampling and raising the front end of the wheelchair;
the rear wheels are arranged at the outer sides of the bottom ends of the back rest pipes at the two sides and are in rotary connection with the back rest pipes through bearings; a driving wheel for wheelchair travel;
The pedals are arranged at the bottom ends of the leg rest pipes at the two sides and are fixedly connected with the leg rest pipes through fasteners; for placing the sole of the foot by the user;
The device is characterized in that the number of the brackets is two, the two brackets are distributed on two sides, each bracket comprises a handrail tube, a backrest tube and a leg rest tube, and the two ends of the backrest tube and the two ends of the leg rest tube are fixed through welding and form an integrated structure; the armrest pipe is arranged at the top end of the leg rest pipe, one end of the armrest pipe is fixedly connected with the backrest pipe through a bolt, and the other end of the armrest pipe is fixedly connected with the leg rest pipe through a bolt; an integral structure for supporting a wheelchair; the number of the folding pipes is four, the folding pipes are arranged between the two brackets, and the centers of every two folding pipes are in rotary connection through the fastener; a bracket for folding the seat cushion;
the folding pipe sleeves are arranged at the bottom end of each folding pipe and sleeved on the outer side of the bottom end of each folding pipe; the device is used for protecting the bottom end of the folding pipe;
The four folding tube seat frames are arranged on the inner side of the bottom end of each back tube, and one side of each folding tube seat frame is fixedly connected with the back tube; the folding tube is connected with the folding tube seat frame in a rotating way by sequentially penetrating the folding tube seat frame, the folding tube sleeve and the folding tube through the fasteners; a steering structure for folding the bottom end of the tube and the bracket;
One end of the supporting rod is rotationally connected with the back pipe through a fastener, and the other end of the supporting rod is rotationally connected with the top end of the folding pipe through a fastener; the folding pipe is used for connecting the backrest pipe and the folding pipe;
The seat tube is arranged at the top end of the folding tube and is used for expanding and supporting the seat cushion;
The anti-loosening hand is arranged at the top ends of the back rest pipes at two sides, one end of the anti-loosening hand is provided with an anti-loosening hand holding screw hole, the anti-loosening hand holding is sleeved at the outer side of the top end of the back rest pipe through one end of the anti-loosening hand holding, and the anti-loosening hand holding is fixedly connected with the back rest pipe through the screw hole and the back rest pipe by bolts; a handle for pushing the wheelchair;
the group protection plates are arranged on the top surfaces of the back rest pipes at two sides, group protection plate screw holes are formed in two sides of the group protection plates, and the group protection plates are connected with the brackets through the cooperation of fasteners and the group protection plate screw holes; the device is used for reinforcing the connecting handrail tube and the backrest tube and simultaneously limiting articles on the cushion from sliding to two sides of the wheelchair;
The front wheels are arranged at the bottom ends of the back rest pipes at the two sides and are fixedly connected with the back rest pipes through a detachable structure; the detachable structure of the front wheel comprises a mounting seat, a fixing piece, a first flat pad, a second flat pad, a mounting seat spring pad, a fastening bolt, a fastening nut, a fixing piece spring pad and a cover-shaped locknut; the bottom end of the back rest pipe is provided with a frame connecting hole; the top end of the front wheel is in a rod-shaped structure to form a front wheel supporting rod, and the periphery of the top end of the front wheel supporting rod is provided with a supporting rod external thread; the mounting seat comprises a mounting cylinder and a mounting sheet, wherein the mounting cylinder is cylindrical in shape and is of a hollow structure, and a mounting seat hole is formed in the mounting cylinder; the number of the mounting pieces is two, a mounting piece hole is formed in the center of each mounting piece, the mounting pieces are arranged on two sides of the mounting cylinder, and one side of the mounting seat is attached to one side of the back tube; the fixing piece is in a 匚 -shaped structure, fixing piece holes are formed in the bottom end and the top end of the fixing piece, and two ends of the fixing piece are sequentially clamped on the outer sides of the backrest tube and the mounting cylinder; the first flat pad is arranged on one side of the mounting piece, the second flat pad is arranged on one side of the back rest pipe, the mounting seat elastic pad is arranged on one side of the second flat pad, and the fastening bolt sequentially penetrates through the first flat pad, the mounting seat hole, the frame connecting hole, the second flat pad and the mounting seat elastic pad and is matched with the fastening nut to realize the fixed connection of the mounting seat and the back rest pipe; the inner wall of the cover-shaped locknut is in a thread shape, the front wheel supporting rod sequentially penetrates through the fixing piece hole, the mounting seat hole and the fixing piece elastic pad, and is matched with the inner wall of the cover-shaped locknut through the external threads of the supporting rod, so that the front wheel supporting rod is fixedly connected with the cover-shaped locknut; steering wheels for wheelchair travel;
The armrest pipe is in a large arc structure, the back pipe is a bent pipe with a Z-shaped structure, and the leg rest pipe is a bent pipe with an inverted L-shaped structure; the bending parts of the backrest pipe and the leg rest pipe are all arc-shaped;
Each seat tube bracket is symmetrically arranged on the leg rest tubes at two sides; one side of the seat tube bracket is in a groove-shaped structure to form a back tube groove, the other side of the seat tube bracket is in an arc-shaped structure, the center of the seat tube bracket is hollow, and the top end of the seat tube bracket is in a groove-shaped structure to form a seat tube groove; the back support pipe groove is clamped into the inner side of the back support pipe, and penetrates through the seat pipe bracket and the back support pipe through the fastener, so that the seat pipe bracket is fixedly connected with the back support pipe; the seat tube is clamped into the seat tube groove, so that the seat tube is in supporting connection with the seat tube bracket.
2. The hand push wheelchair with extremely high performance according to claim 1, wherein one end of the anti-loosening hand grip is provided with hand grip anti-slip patterns.
3. The wheelchair of claim 1, wherein the back pad is made of elastic cloth.
4. The hand propelled wheelchair with extremely high performance according to claim 1, wherein the periphery of the group protection plate is in an arc-shaped structure; one side of the group protection plate is in a hollow structure, the other side of the group protection plate is in a groove structure, and the label is arranged in the groove of the group protection plate.
5. The hand push wheelchair with extremely high performance according to claim 1, wherein the pedal surface is provided with pedal anti-skid patterns, and a pedal baffle is vertically arranged at one side of the pedal and fixedly connected with the pedal, and the hand push wheelchair is of an integrated structure.
6. The wheelchair of claim 1 wherein the fastener is one or more of a rivet, an expansion screw, a bolt, a nut, a screw.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910095560.2A CN109758310B (en) | 2019-01-31 | 2019-01-31 | Hand push wheelchair with high performance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910095560.2A CN109758310B (en) | 2019-01-31 | 2019-01-31 | Hand push wheelchair with high performance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110236809A (en) * | 2019-05-29 | 2019-09-17 | 江苏君悦智能轮椅科技有限公司 | A kind of high-performance Collapsible wheelchair vehicle |
| CN110368214A (en) * | 2019-08-29 | 2019-10-25 | 常州摩本智能科技有限公司 | Wheelchair |
| CN111388217B (en) * | 2020-04-24 | 2025-06-10 | 江苏省人民医院（南京医科大学第一附属医院） | Medical wheelchair with rollover prevention function |
| CN113180939A (en) * | 2021-04-22 | 2021-07-30 | 广东职业技术学院 | Intelligent sharing wheelchair convenient to disassemble and assemble |
| CN113876502B (en) * | 2021-08-31 | 2024-10-01 | 王艳奎 | Novel wheelchair brake parking control device |
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| CN210019982U (en) * | 2019-01-31 | 2020-02-07 | 江苏鸿凯医疗科技有限公司 | A hand-push wheelchair with extremely high performance |
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| JPH05305112A (en) * | 1991-07-18 | 1993-11-19 | Uchie Kk | Reclining type wheel chair |
| US6604750B2 (en) * | 1998-06-02 | 2003-08-12 | The United States Of America As Represented By The Department Of Veterans Affairs | Commode and shower wheelchair |
| JP3840466B2 (en) * | 2003-07-18 | 2006-11-01 | ウチヱ株式会社 | Folding nursing wheelchair |
| JP2006141631A (en) * | 2004-11-18 | 2006-06-08 | Mojun Ri | Folding wheelchair structure changeable of sitting posture |
| CN203263669U (en) * | 2013-04-01 | 2013-11-06 | 董学明 | Child wheel chair with walking aid and rehabilitation functions |
| CN109106523A (en) * | 2018-08-13 | 2019-01-01 | 美利驰医疗器械（苏州）有限公司 | A kind of structure is simple, convenient for the wheelchair and its working method of manipulation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210019982U (en) * | 2019-01-31 | 2020-02-07 | 江苏鸿凯医疗科技有限公司 | A hand-push wheelchair with extremely high performance |
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