CN210019982U - Hand-push wheelchair with high performance - Google Patents
Hand-push wheelchair with high performance Download PDFInfo
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- CN210019982U CN210019982U CN201920169844.7U CN201920169844U CN210019982U CN 210019982 U CN210019982 U CN 210019982U CN 201920169844 U CN201920169844 U CN 201920169844U CN 210019982 U CN210019982 U CN 210019982U
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Abstract
A hand-push wheelchair with extremely high performance comprises a bracket, a folding tube sleeve, a folding tube seat frame, a support rod, a seat tube, a cushion, a seat tube bracket, a locking handle, a brake sleeve, a brake handle, a brake cable, a brake assembly, a back pad, a handrail pad, a group protection plate, pedals, a rear wheel, a front wheel, a detachable structure and pedals; the bracket comprises an armrest 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 elastic pad, a fastening bolt, a fastening nut, a fixing piece elastic pad and a cover-shaped locknut; the utility model has higher structural strength and can be disassembled and replaced; the elastic force of the back cushion and the gravity of the seat tube can assist the release of the wheelchair, so that the operation is labor-saving and simple; structural improvement has been carried out a plurality of parts, and the part can be dismantled alone and change, long service life, and the practicality is high, like locking holding, protecting crowd's board, pedal, front wheel, footboard.
Description
Technical Field
The utility model relates to a wheelchair field, especially a hand push wheelchair with high performance.
Background
The wheelchair is a chair provided with wheels, is an important moving tool for the rehabilitation, turnover transportation, treatment and outgoing activities of wounded, patients and disabled at home, not only meets the requirements of physically disabled people and mobility-handicapped people for riding instead of walking, but also is more important to facilitate the family members to move and take care of the patients, so that the patients can do physical exercises and participate in social activities by means of the wheelchair. The common wheelchair generally comprises nine parts, namely a foldable frame of the wheelchair, front and rear wheels, left and right pedals, left and right detachable armrests, a handle brake device, a seat, a backrest bag capable of storing sheets, a bedpan and a urine receiving bag hook.
Wheelchairs with various structures exist in the existing market, and the technology of the wheelchairs reaches the mature stage after continuous innovation and transformation of various manufacturers, but the prior art still has some defects: (1) the whole vehicle is mostly of an integral structure, the parts are usually assembled in a welding mode, when parts at a certain position are damaged, the wheelchair needs to be directly and integrally replaced, the damaged parts cannot be detached and replaced independently, and the possibility of maintenance is avoided. (2) The folding function of receiving and releasing of wheelchair, it is hard to waste time during the use, complex operation. (3) The wheelchair is difficult to pass through the raised terrain, and the wheelchair has low adaptability to the complex terrain. (4) The wheelchair main frame is connected in a welding mode, welding spots are more, and the structural strength of the frame is lower. (5) The pedals of the wheelchair are uncomfortable to use, and the soles of the feet of a user easily slide off the pedals.
SUMMERY OF THE UTILITY MODEL
In order to solve the existing problems, the utility model discloses a hand push wheelchair with high performance, its concrete technical scheme as follows: a hand-push wheelchair with extremely high performance comprises a bracket, a folding tube sleeve, a folding tube seat frame, a support rod, a seat tube, a cushion, a seat tube bracket, a locking handle, a brake sleeve, a brake handle, a brake cable, a brake assembly, a back pad, a handrail pad, a group protection plate, pedals, a rear wheel, a front wheel and pedals;
the number of the supports is two, the two supports are distributed on two sides, each support comprises an armrest tube, a backrest tube and a leg backrest tube, and two ends of the backrest tube and two ends of the leg backrest tube are fixed through welding and are of an integrated structure; the armrest tube is arranged at the top end of the leg rest tube, one end of the armrest tube is fixedly connected with the backrest tube through a bolt, and the other end of the armrest tube is fixedly connected with the leg rest tube through a bolt; a unitary 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 rotationally connected through a fastening piece; a bracket for folding the cushion;
the folding pipe sleeve is arranged at the bottom end of each folding pipe and sleeved outside the bottom end of each folding pipe; used for protecting the bottom end of the folding tube;
the four folding tube seat frames are arranged on the inner side of the bottom end of each backrest tube, and one side of each folding tube seat frame is fixedly connected with the backrest tube; the folding pipe seat frame, the folding pipe sleeve and the folding pipe are sequentially penetrated through the fastening piece, so that the folding pipe is rotatably connected with the folding pipe seat frame; a steering structure for folding the bottom end of the tube and the support;
one end of the support rod is rotatably connected with the back rest pipe through a fastener, and the other end of the support rod is rotatably connected with the top end of the folding pipe through a fastener; for connecting the backrest tube and the folding tube;
the seat tube is arranged at the top end of the folding tube and used for unfolding and supporting the 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 unfolded state, the wheelchair is used for supporting the seat tubes at the two ends and positioning the folding rods;
the anti-loosening hand is arranged at the top ends of the backrest pipes on the two sides, one end of the anti-loosening hand is provided with an anti-loosening hand-holding screw hole, the anti-loosening hand-holding part is sleeved outside the top end of the backrest pipe through one end of the anti-loosening hand-holding part, and the anti-loosening hand-holding part penetrates through the screw hole and the backrest pipe through bolts, so that the anti-loosening hand-holding; a handle used for pushing the wheelchair;
the brake sleeve is arranged at one end of the anti-loosening handle and sleeved outside the top end of the backrest pipe;
the brake handle is arranged at the bottom end of the brake sleeve and used for controlling the brake 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 backrest pipe; the rear wheel is used for clamping the rear wheel and braking the rotation of the rear wheel;
the two ends of the back cushion are connected with the back pipes at the two sides; for reclining the back of the wheelchair;
the armrest pad is arranged on the top surface of the armrest tube; the device is used for placing arms and palms of users;
the group protection plate is arranged on the top surfaces of the backrest pipes at two sides, the group protection plate screw holes are formed at two sides of the group protection plate, and the group protection plate is connected with the bracket by matching the group protection plate screw holes through fasteners; the wheelchair seat cushion is used for reinforcing and connecting the armrest pipe and the backrest pipe and simultaneously limiting objects on the seat cushion to slide to the two sides of the wheelchair;
the pedals are arranged at the bottom ends of the backrest pipes on the two sides, and the pedals and the backrest pipes are penetrated through by fasteners to realize rotary connection; a force-bearing component which is used for treading and tilting the front end of the wheelchair;
the rear wheels are arranged at the outer sides of the bottom ends of the two side back-to-back pipes and are in rotary connection with the back-to-back pipes through bearings; a driving wheel for driving the wheelchair;
the front wheels are arranged at the bottom ends of the backrest pipes at the two sides and are fixedly connected with the backrest pipes through detachable structures; a steering wheel for wheelchair travel;
the pedals are arranged at the bottom ends of the leg rest pipes on the two sides and are fixedly connected with the leg rest pipes through fasteners; for the user to place the sole.
Furthermore, the handrail tube is in a large arc structure, the backrest tube is a bent tube in a Z-shaped structure, and the leg rest tube is a bent tube in an inverted L-shaped structure; the bending parts of the backrest pipe and the leg backrest pipe are arc-shaped.
Furthermore, each seat tube bracket is symmetrically arranged on the leg rest tubes at two sides; one side of the seat tube bracket is of a groove-shaped structure to form a back tube groove, the other side of the seat tube bracket is of an arc-shaped structure, the center of the seat tube bracket is hollow, and the top end of the seat tube bracket is of a groove-shaped structure to form a seat tube groove; the backrest tube groove is clamped into the inner side of the backrest tube and penetrates through the seat tube bracket and the backrest tube through the fastener, so that the seat tube bracket is fixedly connected with the backrest tube; the seat tube is clamped into the seat tube groove, and the seat tube is connected with the seat tube bracket in a supporting mode.
Furthermore, one end of the anti-loosening hand is provided with hand-holding anti-slip lines.
Furthermore, the back cushion is made of elastic cloth.
Furthermore, the periphery of the group protection plate is of 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 a label is arranged in the groove of the group protection plate.
Furthermore, 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 elastic pad, a fastening bolt, a fastening nut, a fixing piece elastic pad and a cover-shaped locknut; the bottom end of the backrest pipe is provided with a frame connecting hole; the top end of the front wheel is of a rod-shaped structure to form a front wheel supporting rod, and the top end of the front wheel supporting rod is circumferentially provided with supporting rod external threads; the mounting seat comprises a mounting cylinder and a mounting sheet, 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 mounting pieces are two in number, 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 backrest pipe; the fixing piece is in a Contraband-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 clamped outside the backrest pipe and the mounting cylinder in sequence; the first flat pad is arranged on one side of the mounting piece, the second flat pad is arranged on one side of the backrest tube, 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 backrest tube; the inner wall of the cover-shaped anti-loose nut 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 spring pad, and the front wheel supporting rod is fixedly connected with the cover-shaped anti-loose nut through the matching of the external threads of the supporting rod and the inner wall of the cover-shaped anti-loose nut.
Furthermore, the surface of the pedal is provided with anti-skid lines of the pedal, and a pedal baffle is vertically arranged on one side edge of the pedal and is fixedly connected with the pedal to form an integral 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 structure principle of the utility model is that:
1. and (4) folding and unfolding the wheelchair. (1) When the wheelchair is converted from the folding state to the opening state. The support of the both sides with the laminating is to both sides extension, back of the body pad self has tension, back of the body pad with both sides lean against the pipe top and extrude to the outside, lean against the pipe bottom and extend to the outside simultaneously, every folding pipe bottom is at folding pipe seat frame internal rotation, the folding pipe of both sides rotates through the fastener in the middle of, the angle grow that opens and shuts between the folding pipe, both sides bracing piece rotates with the folding pipe cooperation 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 opening of wheelchair. (2) When the wheelchair is converted from the open state to the closed state. The seat tubes on two sides are pushed out of the seat tube groove upwards through external force, the seat tubes on two sides are folded inwards, the support rods on two sides and the top ends of the folding tubes are matched to rotate, the folding tubes on two sides rotate through a middle fastener, the opening and closing angle between the folding tubes is reduced, the bottom end of each folding tube rotates in the seat frame of the folding tube to drive the bottom ends of the backrest tubes to be folded inwards at the same time, the top ends of the backrest tubes are folded inwards at the same time, and the back cushion is folded; when the seat tubes on the two sides are completely jointed, the brackets on the two sides are driven to be completely jointed, and the folding state of the wheelchair is achieved.
2. The wheelchair is driven. A user sits on the cushion, leans against the back cushion at the back, places arms on the armrest cushion and places feet on the pedal; a nursing person holds the anti-loose hand to push the wheelchair to run, when the wheelchair meets a raised terrain such as a step, the nursing person breaks the pedals downwards, steps on the pedals, presses the anti-loose hand downwards, lifts the front end of the wheelchair, and enables the front wheel to be in a suspended state, so that the wheelchair can be pushed forwards to cross the raised terrain; when the pedal is not used, the pedal can be folded upwards.
3. And (5) mounting and replacing a 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 elastic pad are sequentially penetrated through a fastening bolt and are locked through a fastening nut, and the mounting seat is fixedly connected with the backrest pipe; then the front wheel supporting rod sequentially penetrates through the fixing sheet hole, the mounting seat hole and the fixing sheet spring mat and is locked by matching the internal thread of the cover-shaped locknut with the external thread of the supporting rod, and the front wheel supporting rod is fixedly connected with the cover-shaped locknut; the mounting seat, the fixing sheet and the backrest pipe form an integrated structure, and the wheel is fixedly connected with the backrest pipe.
The utility model has the advantages that:
(1) the utility model designs the support structure into a form consisting of three parts of a handrail tube, a backrest tube and a leg backrest tube, each group price self adopts an integral bent tube form, and the bent part of the bent tube adopts a circular arc structure, thereby improving the structural strength of each group price self and leading each component to have beautiful appearance; the integral structure of the support is welded and connected by argon arc welding at the joint of the back rest pipe and the leg rest pipe, the welding points are only two, the number of the welding points is less than that of the traditional wheelchair support, the integrity of the support is stronger, the structural strength is higher, and the assembly process is simplified; the handrail tube is respectively connected with the backrest tube and the leg rest tube by bolts, the connection form is simple, the installation is rapid, and the handrail tube can be disassembled and replaced; the overall strength of the bracket is higher than that of the traditional wheelchair bracket, and the assembly efficiency is high.
(2) The utility model discloses the locking form of holding of improvement, the hand that uses on the market is usually made of rubber, will hold and bond with the handle with glue, and life is shorter, can produce after long-time the use and drop, connect insecurely; the anti-loosening hand is sleeved at the top end of the backrest pipe, and meanwhile, the anti-loosening hand is high in connection strength and cannot fall off in a bolt fixing mode; when the locking is held and is damaged, the bolt can be loosened, and the locking handle can be independently replaced by loosening the bolt, so that the replacement is convenient.
(3) The utility model is additionally provided with a group protection plate structure, and the appearance of the group protection plate adopts an arc-shaped structure, thereby having beautiful appearance; the connection strength of the supports on the two sides is reinforced by the group protection plates, the group protection plates are hollowed out and designed with grooves, the weight of the group protection plates is reduced while the structural strength is guaranteed, the group protection plates are connected with the supports through bolts in a fastening mode, the connection strength is high, the group protection plates can be detached and replaced, and meanwhile the group protection plates can prevent objects on the cushion from sliding from the two sides of the wheelchair and play a role in protection.
(4) The utility model improves the structural form of the front wheel of the wheelchair, changes the traditional fixed connection form of welding and riveting between the front wheel and the frame into the connection form of adopting the fastening bolt between the wheel and the frame, realizes the detachable connection between the front wheel and the frame, and can detach the front wheel and the frame arbitrarily; when the wheel is worn or the wheel assembly is damaged, the front wheel can be locally disassembled and replaced, the wheelchair body is not required to be wholly replaced, the structure of the wheelchair body is not required to be damaged, the structural integrity of the wheelchair body can be guaranteed, the structural strength of the wheelchair body is maintained, the purpose of replacing local parts of the wheel without damaging the overall structure is achieved, the replacement and maintenance of the wheel and the maintenance of the wheelchair are facilitated, and the maintenance cost is reduced. The jolt-proof ability of the wheel and the frame of the detachable structure is strong.
(5) The utility model optimizes and redesigns the folding structure of the wheelchair, adopts elastic cloth as the back cushion, can flick the support to both sides by means of the elasticity of the cloth of the back cushion when the wheelchair is released, drives the folding tube between the supports to rotate, can naturally clip the seat tube into the seat tube bracket by matching with the gravity of the seat tube, and the seat tube and the support form a fixed whole to complete the releasing process of the wheelchair; the in-process has assisted the opening of wheelchair with the help of the elasticity of back of the body pad and the gravity of seat pipe, and the user only needs the less power alright accomplish this process of spending, and the labour saving operation, operation process is simple and convenient, and the process of opening is smooth, rapid, and the efficiency of the process of opening is high.
(6) The utility model adds the pedal on the bottom side of the wheelchair, which can be stepped on, so as to more easily raise the front end of the wheelchair to cross the raised ground terrain, improve the flexibility of the wheelchair and improve the adaptability of the wheelchair to the complex terrain; the pedal and the bracket adopt a rotating structure, and can be folded when the pedal is not needed.
(7) The utility model discloses improvement footboard structural style sets up the footboard baffle at the footboard side, and when the user places the foot on the footboard, the effect is sheltered from to the accessible footboard baffle, prevents that the foot from landing on the footboard, has improved the comfort level of user's foot, and the structure practicality is strong.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the bracket 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 structural view of the wheelchair of the present invention in an open state.
Fig. 5 is a schematic structural view of the wheelchair of the present invention in a folded state.
Fig. 6 is a partially enlarged schematic view of a in fig. 3 according to the present invention.
Fig. 7 is a schematic enlarged view of part B of fig. 3 according to the present invention.
Fig. 8 is a schematic structural view of the anti-loosening handle of the present invention.
Fig. 9 is a schematic structural view of the crowd guard of the present invention.
Fig. 10 is a schematic structural view of 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 support 1, armrest tubes 1-1, a backrest tube 1-2, a bicycle frame connecting hole 1-21, leg rest tubes 1-3, a folding tube 2, a folding tube sleeve 3, a folding tube seat frame 4, a support 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 handle anti-slip thread 9-2, a brake sleeve 10, a brake handle 11, a brake cable 12, a brake assembly 13, a back cushion 14, an armrest cushion 15, a crowd guard 16, a crowd guard screw hole 16-1, a label 16-2, a pedal 17, a rear wheel 18, a front wheel 19, a front wheel support rod 19-1, a support rod external thread 19-11, a detachable structure 20, a mounting seat 20-1, a mounting tube 20-11, a mounting seat hole 20-12, a mounting piece 20-13, a mounting pieces, The anti-skid pedal comprises, by weight, 20-14 parts of mounting plate holes, 20-2 parts of fixing plates, 20-21 parts of fixing plate holes, 20-3 parts of first flat cushions, 20-4 parts of second flat cushions, 20-5 parts of mounting seat elastic cushions, 20-6 parts of fastening bolts, 20-7 parts of fastening nuts, 20-8 parts of fixing plate elastic cushions, 20-9 parts of cover-shaped anti-loose nuts, 21 parts of pedals, 21-1 parts of pedal anti-skid threads and 21-2 parts of pedal baffles.
Detailed Description
For making the technical scheme of the utility model clear more clearly and definitely, it is right to combine the drawing below the utility model discloses further describe, any is right the utility model discloses technical scheme's technical characteristic carries out the scheme that equivalent replacement and conventional reasoning reachs and all falls into the utility model discloses protection scope. The fixed connection, the fixed arrangement and the fixed structure mentioned in the embodiment are all known technologies known to those skilled in the art, such as welding, screw connection, bolt-nut connection, riveting and the like. The utility model discloses in the product that the front wheel adopted china utility model to disclose a patent number is "CN 201120094541.7 a wheelchair truckle", its structural principle is the well-known technique of worker that this field personnel are familiar with the utility model discloses in do not give unnecessary details.
As can be seen by combining the attached figure 1, the hand-push wheelchair with 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, a locking handle, a brake sleeve, a brake handle, a brake cable, a brake assembly, a back cushion, a handrail cushion, a group protection plate, a pedal, a rear wheel, a front wheel, a detachable structure and a pedal; the number of the supports is two, the two supports are distributed on two sides, each support comprises an armrest tube, a backrest tube and a leg backrest tube, and two ends of the backrest tube and two ends of the leg backrest tube are fixed through welding and are of an integrated structure; the armrest tube is arranged at the top end of the leg rest tube, one end of the armrest tube is fixedly connected with the backrest tube through a bolt, and the other end of the armrest tube is fixedly connected with the leg rest tube through a bolt; the folding pipes are arranged between the two brackets, and the centers of every two folding pipes are rotationally connected through a fastener; the folding pipe sleeve is arranged at the bottom end of each folding pipe and sleeved outside the bottom end of each folding pipe; the folding tube seat frame is arranged on the inner side of the bottom end of each backrest tube, one side of the folding tube seat frame is fixedly connected with the backrest tubes, and the folding tubes and the folding tube seat frame are rotatably connected by sequentially penetrating through the folding tube seat frame, the folding tube sleeves and the folding tubes through fasteners; one end of the support rod is rotatably connected with the backrest pipe through a fastener, and the other end of the support rod is rotatably 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; the 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 backrest tube, and penetrates through the seat tube bracket and the backrest tube through a fastening piece to realize the fixed connection of the seat tube bracket and the backrest tube; the anti-loosening handle is arranged at the top ends of the back-to-back pipes on two sides, one end of the anti-loosening handle is provided with an anti-loosening handle screw hole, the anti-loosening handle is sleeved outside the top end of the back-to-back pipe through one end of the anti-loosening handle, and the anti-loosening handle penetrates through the screw hole and the back-to-back pipe through a bolt, so that the anti-loosening handle; the brake sleeve is arranged at one end of the anti-loosening handle and sleeved outside the top end of the backrest 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 backrest 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 tube; the group protection plate is arranged on the top surfaces of the back pipes at two sides, the group protection plate screw holes are formed at two sides of the group protection plate, and the group protection plate is fixedly connected with the bracket by matching the group protection plate screw holes through fasteners; the pedals are arranged at the bottom ends of the backrest pipes at the two sides, and the pedals and the backrest pipes are penetrated through by fasteners to realize rotary connection; the rear wheels are arranged at the outer sides of the bottom ends of the two side back-to-back pipes and are in rotary connection with the back-to-back pipes through bearings; the front wheels are arranged at the bottom ends of the backrest pipes at the two sides and are fixedly connected with the backrest pipes through detachable structures; the pedals are arranged at the bottom ends of the leg support pipes at the two sides and are fixedly connected with the leg support pipes through fasteners.
As can be seen from the attached figure 2, the handrail tube is in a large arc structure, the backrest tube is in a Z-shaped bent tube, and the leg rest tube is in an inverted L-shaped bent tube; the bending parts of the backrest pipe and the leg backrest pipe are arc-shaped.
3-7, each seat tube bracket is symmetrically arranged on the leg rest tubes at two sides; one side of the seat tube bracket is of a groove-shaped structure to form a back tube groove, the other side of the seat tube bracket is of an arc-shaped structure, the center of the seat tube bracket is hollow, and the top end of the seat tube bracket is of a groove-shaped structure to form a seat tube groove; the backrest tube groove is clamped into the inner side of the backrest tube and penetrates through the seat tube bracket and the backrest tube through the fastener, so that the seat tube bracket is fixedly connected with the backrest tube; the seat tube is clamped into the seat tube groove, and the seat tube is connected with the seat tube bracket in a supporting mode.
As can be seen from the attached figure 8, the anti-loosening hand-holding end is provided with hand-holding anti-slip lines.
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 a label is arranged in the groove of the group protection plate.
As can be seen from fig. 10 to 11, 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 elastic pad, a fastening bolt, a fastening nut, a fixing piece elastic pad and a cover-shaped locknut; the bottom end of the backrest pipe is provided with a frame connecting hole; the top end of the front wheel is of a rod-shaped structure to form a front wheel supporting rod, and the top end of the front wheel supporting rod is circumferentially provided with supporting rod external threads; the mounting seat comprises a mounting cylinder and a mounting sheet, 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 mounting pieces are two in number, 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 backrest pipe; the fixing piece is in a Contraband-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 clamped outside the backrest pipe and the mounting cylinder in sequence; the first flat pad is arranged on one side of the mounting piece, the second flat pad is arranged on one side of the backrest tube, 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 backrest tube; the inner wall of the cover-shaped anti-loose nut 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 spring pad, and the front wheel supporting rod is fixedly connected with the cover-shaped anti-loose nut through the matching of the external threads of the supporting rod and the inner wall of the cover-shaped anti-loose nut.
As can be seen from the attached figure 12, the surface of the pedal is provided with anti-skid lines, and one side edge of the pedal is vertically provided with a pedal baffle 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 structure principle of the utility model is that:
1. and (4) folding and unfolding the wheelchair. (1) When the wheelchair is converted from the folding state to the opening state. The support of the both sides with the laminating is to both sides extension, back of the body pad self has tension, back of the body pad with both sides lean against the pipe top and extrude to the outside, lean against the pipe bottom and extend to the outside simultaneously, every folding pipe bottom is at folding pipe seat frame internal rotation, the folding pipe of both sides rotates through the fastener in the middle of, the angle grow that opens and shuts between the folding pipe, both sides bracing piece rotates with the folding pipe cooperation 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 opening of wheelchair. (2) When the wheelchair is converted from the open state to the closed state. The seat tubes on two sides are pushed out of the seat tube groove upwards through external force, the seat tubes on two sides are folded inwards, the support rods on two sides and the top ends of the folding tubes are matched to rotate, the folding tubes on two sides rotate through a middle fastener, the opening and closing angle between the folding tubes is reduced, the bottom end of each folding tube rotates in the seat frame of the folding tube to drive the bottom ends of the backrest tubes to be folded inwards at the same time, the top ends of the backrest tubes are folded inwards at the same time, and the back cushion is folded; when the seat tubes on the two sides are completely jointed, the brackets on the two sides are driven to be completely jointed, and the folding state of the wheelchair is achieved.
2. The wheelchair is driven. A user sits on the cushion, leans against the back cushion at the back, places arms on the armrest cushion and places feet on the pedal; a nursing person holds the anti-loose hand to push the wheelchair to run, when the wheelchair meets a raised terrain such as a step, the nursing person breaks the pedals downwards, steps on the pedals, presses the anti-loose hand downwards, lifts the front end of the wheelchair, and enables the front wheel to be in a suspended state, so that the wheelchair can be pushed forwards to cross the raised terrain; when the pedal is not used, the pedal can be folded upwards.
3. And (5) mounting and replacing a 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 elastic pad are sequentially penetrated through a fastening bolt and are locked through a fastening nut, and the mounting seat is fixedly connected with the backrest pipe; then the front wheel supporting rod sequentially penetrates through the fixing sheet hole, the mounting seat hole and the fixing sheet spring mat and is locked by matching the internal thread of the cover-shaped locknut with the external thread of the supporting rod, and the front wheel supporting rod is fixedly connected with the cover-shaped locknut; the mounting seat, the fixing sheet and the backrest pipe form an integrated structure, and the wheel is fixedly connected with the backrest pipe.
The utility model has the advantages that:
(1) the utility model designs the support structure into a form consisting of three parts of a handrail tube, a backrest tube and a leg backrest tube, each group price self adopts an integral bent tube form, and the bent part of the bent tube adopts a circular arc structure, thereby improving the structural strength of each group price self and leading each component to have beautiful appearance; the integral structure of the support is welded and connected by argon arc welding at the joint of the back rest pipe and the leg rest pipe, the welding points are only two, the number of the welding points is less than that of the traditional wheelchair support, the integrity of the support is stronger, the structural strength is higher, and the assembly process is simplified; the handrail tube is respectively connected with the backrest tube and the leg rest tube by bolts, the connection form is simple, the installation is rapid, and the handrail tube can be disassembled and replaced; the overall strength of the bracket is higher than that of the traditional wheelchair bracket, and the assembly efficiency is high.
(2) The utility model discloses the locking form of holding of improvement, the hand that uses on the market is usually made of rubber, will hold and bond with the handle with glue, and life is shorter, can produce after long-time the use and drop, connect insecurely; the anti-loosening hand is sleeved at the top end of the backrest pipe, and meanwhile, the anti-loosening hand is high in connection strength and cannot fall off in a bolt fixing mode; when the locking is held and is damaged, the bolt can be loosened, and the locking handle can be independently replaced by loosening the bolt, so that the replacement is convenient.
(3) The utility model is additionally provided with a group protection plate structure, and the appearance of the group protection plate adopts an arc-shaped structure, thereby having beautiful appearance; the connection strength of the supports on the two sides is reinforced by the group protection plates, the group protection plates are hollowed out and designed with grooves, the weight of the group protection plates is reduced while the structural strength is guaranteed, the group protection plates are connected with the supports through bolts in a fastening mode, the connection strength is high, the group protection plates can be detached and replaced, and meanwhile the group protection plates can prevent objects on the cushion from sliding from the two sides of the wheelchair and play a role in protection.
(4) The utility model improves the structural form of the front wheel of the wheelchair, changes the traditional fixed connection form of welding and riveting between the front wheel and the frame into the connection form of adopting the fastening bolt between the wheel and the frame, realizes the detachable connection between the front wheel and the frame, and can detach the front wheel and the frame arbitrarily; when the wheel is worn or the wheel assembly is damaged, the front wheel can be locally disassembled and replaced, the wheelchair body is not required to be wholly replaced, the structure of the wheelchair body is not required to be damaged, the structural integrity of the wheelchair body can be guaranteed, the structural strength of the wheelchair body is maintained, the purpose of replacing local parts of the wheel without damaging the overall structure is achieved, the replacement and maintenance of the wheel and the maintenance of the wheelchair are facilitated, and the maintenance cost is reduced. The jolt-proof ability of the wheel and the frame of the detachable structure is strong.
(5) The utility model optimizes and redesigns the folding structure of the wheelchair, adopts elastic cloth as the back cushion, can flick the support to both sides by means of the elasticity of the cloth of the back cushion when the wheelchair is released, drives the folding tube between the supports to rotate, can naturally clip the seat tube into the seat tube bracket by matching with the gravity of the seat tube, and the seat tube and the support form a fixed whole to complete the releasing process of the wheelchair; the in-process has assisted the opening of wheelchair with the help of the elasticity of back of the body pad and the gravity of seat pipe, and the user only needs the less power alright accomplish this process of spending, and the labour saving operation, operation process is simple and convenient, and the process of opening is smooth, rapid, and the efficiency of the process of opening is high.
(6) The utility model adds the pedal on the bottom side of the wheelchair, which can be stepped on, so as to more easily raise the front end of the wheelchair to cross the raised ground terrain, improve the flexibility of the wheelchair and improve the adaptability of the wheelchair to the complex terrain; the pedal and the bracket adopt a rotating structure, and can be folded when the pedal is not needed.
(7) The utility model discloses improvement footboard structural style sets up the footboard baffle at the footboard side, and when the user places the foot on the footboard, the effect is sheltered from to the accessible footboard baffle, prevents that the foot from landing on the footboard, has improved the comfort level of user's foot, and the structure practicality is strong.
Claims (8)
1. A hand-push wheelchair with extremely high performance comprises a bracket, a folding tube sleeve, a folding tube seat frame, a support rod, a seat tube, a cushion, a seat tube bracket, a locking handle, a brake sleeve, a brake handle, a brake cable, a brake assembly, a back pad, a handrail pad, a group protection plate, pedals, a rear wheel, a front wheel 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 unfolded state, the wheelchair is used for supporting the seat tubes at the two ends and positioning the folding rods;
the brake sleeve is arranged at one end of the anti-loosening handle and sleeved outside the top end of the backrest pipe;
the brake handle is arranged at the bottom end of the brake sleeve and used for controlling the brake 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 backrest pipe; the rear wheel is used for clamping the rear wheel and braking the rotation of the rear wheel;
the two ends of the back cushion are connected with the back pipes at the two sides; for reclining the back of the wheelchair;
the armrest pad is arranged on the top surface of the armrest tube; the device is used for placing arms and palms of users;
the pedals are arranged at the bottom ends of the backrest pipes on the two sides, and the pedals and the backrest pipes are penetrated through by fasteners to realize rotary connection; a force-bearing component which is used for treading and tilting the front end of the wheelchair;
the rear wheels are arranged at the outer sides of the bottom ends of the two side back-to-back pipes and are in rotary connection with the back-to-back pipes through bearings; a driving wheel for driving the wheelchair;
the pedals are arranged at the bottom ends of the leg rest pipes on the two sides and are fixedly connected with the leg rest pipes through fasteners; used for placing soles of feet by users;
the foldable chair is characterized in that the number of the supports is two, the two supports are distributed on two sides, each support comprises an armrest tube, a backrest tube and a leg backrest tube, and two ends of the backrest tube and two ends of the leg backrest tube are fixed through welding and are of an integrated structure; the armrest tube is arranged at the top end of the leg rest tube, one end of the armrest tube is fixedly connected with the backrest tube through a bolt, and the other end of the armrest tube is fixedly connected with the leg rest tube through a bolt; a unitary 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 rotationally connected through a fastening piece; a bracket for folding the cushion;
the folding pipe sleeve is arranged at the bottom end of each folding pipe and sleeved outside the bottom end of each folding pipe; used for protecting the bottom end of the folding tube;
the four folding tube seat frames are arranged on the inner side of the bottom end of each backrest tube, and one side of each folding tube seat frame is fixedly connected with the backrest tube; the folding pipe seat frame, the folding pipe sleeve and the folding pipe are sequentially penetrated through the fastening piece, so that the folding pipe is rotatably connected with the folding pipe seat frame; a steering structure for folding the bottom end of the tube and the support;
one end of the support rod is rotatably connected with the back rest pipe through a fastener, and the other end of the support rod is rotatably connected with the top end of the folding pipe through a fastener; for connecting the backrest tube and the folding tube;
the seat tube is arranged at the top end of the folding tube and used for unfolding and supporting the cushion;
the anti-loosening hand is arranged at the top ends of the backrest pipes on the two sides, one end of the anti-loosening hand is provided with an anti-loosening hand-holding screw hole, the anti-loosening hand-holding part is sleeved outside the top end of the backrest pipe through one end of the anti-loosening hand-holding part, and the anti-loosening hand-holding part penetrates through the screw hole and the backrest pipe through bolts, so that the anti-loosening hand-holding; a handle used for pushing the wheelchair;
the group protection plate is arranged on the top surfaces of the backrest pipes at two sides, the group protection plate screw holes are formed at two sides of the group protection plate, and the group protection plate is connected with the bracket by matching the group protection plate screw holes through fasteners; the wheelchair seat cushion is used for reinforcing and connecting the armrest pipe and the backrest pipe and simultaneously limiting objects on the seat cushion to slide to the two sides of the wheelchair;
the front wheels are arranged at the bottom ends of the backrest pipes at the two sides and are fixedly connected with the backrest pipes through detachable structures; the detachable structure of the front wheel comprises a mounting seat, a fixing piece, a first flat cushion, a second flat cushion, a mounting seat elastic cushion, a fastening bolt, a fastening nut, a fixing piece elastic cushion and a cover-shaped locknut; the bottom end of the backrest pipe is provided with a frame connecting hole; the top end of the front wheel is of a rod-shaped structure to form a front wheel supporting rod, and the top end of the front wheel supporting rod is circumferentially provided with supporting rod external threads; the mounting seat comprises a mounting cylinder and a mounting sheet, 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 mounting pieces are two in number, 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 backrest pipe; the fixing piece is in a Contraband-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 clamped outside the backrest pipe and the mounting cylinder in sequence; the first flat pad is arranged on one side of the mounting piece, the second flat pad is arranged on one side of the backrest tube, 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 backrest tube; the inner wall of the cover-shaped anti-loose nut 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 spring mat and is matched with the inner wall of the cover-shaped anti-loose nut through the external thread of the supporting rod, so that the front wheel supporting rod is fixedly connected with the cover-shaped anti-loose nut; a steering wheel for wheelchair running.
2. The push wheelchair as claimed in claim 1, wherein the armrest tube has a large arc structure, the backrest tube has a bent tube having a Z-shaped structure, and the leg rest tube has a bent tube having an inverted L-shaped structure; the bending parts of the backrest pipe and the leg backrest pipe are arc-shaped.
3. The push wheelchair as claimed in claim 1, wherein each seat tube bracket is symmetrically provided on both side leg rest tubes; one side of the seat tube bracket is of a groove-shaped structure to form a back tube groove, the other side of the seat tube bracket is of an arc-shaped structure, the center of the seat tube bracket is hollow, and the top end of the seat tube bracket is of a groove-shaped structure to form a seat tube groove; the backrest tube groove is clamped into the inner side of the backrest tube and penetrates through the seat tube bracket and the backrest tube through the fastener, so that the seat tube bracket is fixedly connected with the backrest tube; the seat tube is clamped into the seat tube groove, and the seat tube is connected with the seat tube bracket in a supporting mode.
4. The push wheelchair as claimed in claim 1, wherein the grip portion of the grip portion is formed with grip anti-slip lines at one end thereof.
5. The push wheelchair as claimed in claim 1, wherein the back pad is made of elastic cloth.
6. The push wheelchair as claimed in claim 1, wherein the panel is formed in a circular arc shape around the panel; 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 a label is arranged in the groove of the group protection plate.
7. The push wheelchair as claimed in claim 1, wherein the surface of the pedal is provided with anti-slip lines, and one side of the pedal is vertically provided with a pedal baffle fixedly connected with the pedal in an integrated structure.
8. The push wheelchair as claimed in claim 1, wherein the fastening member is one or more of a rivet, an expansion screw, a bolt, a nut, a screw, and a tapping screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920169844.7U CN210019982U (en) | 2019-01-31 | 2019-01-31 | Hand-push wheelchair with high performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920169844.7U CN210019982U (en) | 2019-01-31 | 2019-01-31 | Hand-push wheelchair with high performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210019982U true CN210019982U (en) | 2020-02-07 |
Family
ID=69353055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920169844.7U Active CN210019982U (en) | 2019-01-31 | 2019-01-31 | Hand-push wheelchair with high performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210019982U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109758310A (en) * | 2019-01-31 | 2019-05-17 | 江苏鸿凯医疗科技有限公司 | A kind of push-chairs with very high performance |
| CN114767406A (en) * | 2022-03-08 | 2022-07-22 | 浙江劲雁科技有限公司 | Foldable electric wheelchair |
| DE102023105971B3 (en) | 2023-03-10 | 2024-05-16 | Alber Gmbh | CONTROL DEVICE FOR A WHEELCHAIR PUSHING AID AND WHEELCHAIR PUSHING AID WITH A CONTROL DEVICE |
-
2019
- 2019-01-31 CN CN201920169844.7U patent/CN210019982U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109758310A (en) * | 2019-01-31 | 2019-05-17 | 江苏鸿凯医疗科技有限公司 | A kind of push-chairs with very high performance |
| CN109758310B (en) * | 2019-01-31 | 2024-06-28 | 江苏鸿凯医疗科技有限公司 | Hand push wheelchair with high performance |
| CN114767406A (en) * | 2022-03-08 | 2022-07-22 | 浙江劲雁科技有限公司 | Foldable electric wheelchair |
| DE102023105971B3 (en) | 2023-03-10 | 2024-05-16 | Alber Gmbh | CONTROL DEVICE FOR A WHEELCHAIR PUSHING AID AND WHEELCHAIR PUSHING AID WITH A CONTROL DEVICE |
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