CN103271799B

CN103271799B - Full-plastic wheelchair

Info

Publication number: CN103271799B
Application number: CN201310203204.0A
Authority: CN
Inventors: 徐宗祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-28
Filing date: 2013-05-28
Publication date: 2016-05-18
Anticipated expiration: 2033-05-28
Also published as: CN103271799A

Abstract

A kind of full-plastic wheelchair, this Wheelchair structure improves, more former wheelchair has reduced numerous parts and pipe joint, just can install without instrument, its half vehicle frame is connected into by forward and backward, vehicle frame bar, Foldable assembly by one pair of above cross support bar with horizontal seatpost with balancing pole, connect into the joint of base plate, foot-driven lever assembly is connected on two halves vehicle frame by the sliding accessory of the treadle that is hinged with pedal, back of the body bar assembly is connected with push rod through lock ring by two back of the body bars that connect backrest, and positioning fastener is installed in handrail, back of the body bar, foot-driven lever assembly and two halves vehicle frame junction. Form and formerly between the part of each large assembly connect with securing member, existing injection moulding is fixedly connected with, intensity, connect more firm, use saferly, suitable especially overweight consumer uses. Foot-driven lever assembly can be according to consumer's height and pin long and short, regulate the high and low position of treadle on half vehicle frame, meet consumer's different demands. The back of the body increases push rod between bar, and the intensity that has both increased back also makes backrest not yielding, uses comfortablely, promotes wheelchair operation more laborsaving, convenient.

Description

Full-plastic wheelchair

Technical field

The present invention relates to a kind of wheelchair, particularly one can enter accurate diagnostic equipment chamber for disabled person and patient in hospital, carries out doing in medical examination and daily life the full-plastic wheelchair of auxiliary moving instrument use.

Background technology

Existing commercially available wheelchair designs and varieties are various, but most or be made into by metal material, metal tube easily gets rusty, corrosion impact its service life, and the metal tube appearance of wheelchair also needs to carry out electroplating processes in addition, can cause the severe contamination of environment, this is all worthless. Also because wheelchair is metalwork, when hospital carries out physical therapy treatment, diagnosis and treatment inspection to patient, especially as x ray room, CT Room, Magnetic Resonance (MR) Room/ MRI Room, patient not ambulatory can not be with in wheelchair promotion room, have to be lifted by multiple medical personnel, carry on the back in the equipment of delivering to and detect, bring inconvenience to medical personnel's work, both increased labour intensity and time, bring embarrassment and misery to patient again.

China Patent No. 201010154305.X " full-plastic wheelchair ", though a kind of full-plastic wheelchair easy to use is provided, has solved existing by the existing problem of metal material making wheelchair, its part that also comes with some shortcomings.

Summary of the invention

Technical problem to be solved by this invention is: a kind of full-plastic wheelchair is provided, except for doing auxiliary moving instrument in disabled person, patient's daily life, can directly enter precision instrument room in hospital for patient and carry out medical examination, diagnosis, the trouble that greatly alleviates medical worker is also time saving and energy saving, both met different consumers' different demands, used more comfortable, safer.

The present invention addresses the above problem adopted technical scheme: full-plastic wheelchair, by connecting Foldable assembly on the vehicle frame forming at two and half vehicle frames, brake assemblies, foot-driven lever assembly, back of the body bar assembly, front-wheel, trailing wheel, handrail, seat board composition, half described vehicle frame is by front bar, rear bar, the entirety that vehicle frame bar connects into, described Foldable assembly by one pair of above cross support bar respectively with horizontal seatpost with balancing pole, the entirety connecting into the joint of base plate, described foot-driven lever assembly is connected on two halves vehicle frame and is formed by the sliding accessory of the treadle that is hinged with pedal, described back of the body bar assembly carries on the back by connecting backed two the entirety that bars connect into by lock ring and push rod, described handrail, back of the body bar assembly, foot-driven lever assembly and two halves vehicle frame junction are also provided with positioning fastener.

Compared with prior art, the invention has the advantages that: this Wheelchair structure improves, numerous parts and pipe joint have been lacked than originally, each assembly is all moulding easily fabrication and installation, and just can operate installation without instrument, and there is no exposed securing member, appearance is clean and tidy, attractive in appearance also has elasticity, use more comfortablely, the each large establishment of component of wheelchair is convenient to separately streamline production and processing and is assembled. Therefore be convenient to the production management of factory, reduce labor intensity, increase work efficiency. Each movable members is as all installed positioning fastener in handrail, back of the body bar, foot-driven lever place, and the time, wheelchair also can not become flexible, more reasonable structure with after long. Form former employing securing member between the part of each large assembly and connect, now adopt injection moulding to be fixedly connected with, intensity is better, it is more firm to connect, it is safer to use, and suitable especially overweight consumer uses. Foot-driven lever assembly is separate piece, and sliding inserting is connected in the front bar of half vehicle frame, can be according to the long and short adjusting treadle of consumer's height and pin the high and low position on half vehicle frame, meet consumer's different demands. Two back ofs the body increase push rod between bars, and the intensity that increases back also makes backrest not yielding, and not only consumer uses comfortablely, also makes to promote wheelchair operation more convenient, laborsaving.

Brief description of the drawings

Fig. 1, structural representation of the present invention (trailing wheel is taken down).

The structural representation of Fig. 2, half vehicle frame.

The top view of Fig. 3, Fig. 2.

The structural representation of Fig. 4, Foldable assembly.

The structural representation of Fig. 5, foot-driven lever assembly.

The broken section structural representation of Fig. 6, back of the body bar assembly.

The A of Fig. 7, Fig. 6 is to view (boss in the middle of push rod).

Fig. 8, lock ring part three dimensional map.

Fig. 9, lock part stereogram.

Detailed description of the invention

Below in conjunction with accompanying drawing, embodiments of the invention are further described.

On front bar 61 upper surfaces, there is the jack 613 that a vertical blind hole is handrail one end, jack shape and handrail end form fit, also have the forward recess 612 and horizontal seatpost 51 form fit of circular arc, inner surface has upper and lower two sleeve pipes 611,616, outer surface upper end has the first lockhole 614 to communicate with the jack 613 on upper surface, the interior installation snap close 8 of the first lockhole 614, there is the more than one regulating tank 615 of treadle high and low position centre, lower end one side has the joint pin 617 with through hole, has chute 618 on outer surface two side.

Rear bar 63 upper surfaces have two vertically but the blind hole that do not communicate is jack 633, the back of the body bar jack 634 of the handrail other end, also have a circular arc rearward recess 632, on inner surface, have upper and lower two take over 631,639 corresponding with the upper and lower sleeve pipe in front bar 61. Front surface upper end have two respectively with handrail, back of the body bar jack second, third lockhole 635,636 being also arranged side by side that communicates, in second and third lockhole, be separately installed with snap close 8.

The cross section of rear bar is the H shape with reinforcement, has trailing wheel installing hole 637 on two sides, outer surface lower end have vertical with outer surface and on have the bumper step 638 of knurling, its cross section is also for there being the H shape of reinforcement.

The entirety that vehicle frame bar 62 connects into by I-shaped car bar 621 with the upper, lower horizontal car bar 622,623 of inside and outside seam forms, in the middle of it, there is balancing pole perforation 626, for also having the reinforcement matching with profile on the inwall of the upper, lower horizontal car bar of gaining in strength, on the outer surface of car bar 621 and bottom rail car bar 623, there is protruding ring muscle 625.

By be assembled into overall vehicle frame bar upper/lower terminal head respectively with forward and backward bar inner surface on two sleeve pipes 611,616, two take over 631,639 injection mouldings and be fixed into half vehicle frame 6 of entirety, as shown in Figure 2.

The inner surface of horizontal seatpost 51 has the open slot 511 communicating with intermediate throughholes, and lower surface has more than one union 512, has retainer ring 513 in the middle of lateral surface.

Joint 53 upper ends are tubular, endoporus mates with support bar 52 end shapes, lower end is that the circular arc of opening is embraced and covered 531, on inwall, fluted 532 coordinate with the ring muscle 625 on car bar, ensure that joint can not move left and right on vehicle frame bar, opening outer edge has the groove 533 of half swallow-tail form and inner surface to connect into enclosed shape climbing with the base plate 534 of half swallow-tail form tongue, is fixed on vehicle frame bar 62.

There is the stock of through hole balancing pole 11 one end in the middle of being, the other end is open annular, opening part has the little recessed catching groove of half swallow-tail form, open annular is enclosed within on the retainer ring 513 of horizontal seatpost, connect into closed ring with the curved cover plate 111 that above has little protruding catching groove, balancing pole upper end is connected in horizontal seatpost 51, as shown in Figure 4.

Support bar 52 is had respectively left and right half support bar 522,523 of reinforcement by two halves inner surface, each tight cover two ring sets 521 are buckled into entirety up and down again, it in the middle of it, is the disc with through hole, two ends are the stock shape with tapering, and two support bars 52 are at one pair of cross support bar 54 of intermediate throughholes plastic screw, fastening nuts one-tenth entirety for place.

The two ends of two support bars 52 on one pair of cross support bar 54 respectively with joint 53, horizontal seatpost 51 on a union 512 be injection molded into entirety, also in the retainer ring 513 of horizontal seatpost, balancing pole 11 is installed and is formed Foldable assembly 5. This Foldable assembly 5 by four support bar two ends on two pairs of independences, identical cross support bar 54 respectively with joint, horizontal seatpost 51 on two unions be injection molded into entirety and form, as shown in Figure 4.

Snap close 8 one end surfaces have arc fluting, and the other end is stairstepping bar, and it is leg-of-mutton button piece 8-1 that a side of arc fluting has convex cross section, as shown in Figure 9.

The entirety that trailing wheel 3 is connected into by travelling wheel 31, handwheel 32, be fixed on half vehicle frame 6 with plastic screw, nut, and front-wheel 7, brake assemblies 4 is all prior art by rear bar installing hole 637.

Back of the body bar 1-1 is vertical bent angle bar, there is hook 1-11 corner, be used for hanging article, on the lower surface of handle 1-2 end, there is the finger ripple that increases friction, there is protruding pintle hook lock 1-21 at the edge of finger ripple, upper surface has knurling, push rod 1-3 is Qian shape, there is the ladder pipe of through hole at two ends in the middle of being, in the middle of pipe, the cross section at boss 1-5 place is kidney-shaped, and push rod 1-3 first inserts in two lock rings respectively at two ends, and then inserts the handle 1-2 end of two back of the body bars, with lock ring 12, push rod, handle are fixed into entirety again, as shown in Fig. 6, Fig. 7, Fig. 8. Between two back of the body bar 1-1, fix backrest 1-4, form back of the body bar assembly 1, as shown in Figure 1.

Lock ring 12 outer surfaces have corresponding finger ripple, and inner surface collar extension end is circular, and internal orifice end is inclined-plane, and collar extension end inwall place has flange 123, two junctions, inclined-plane that coordinate with boss 1-5 to have protruding, the recessed locking face 121,122 of abnormity to coordinate with pintle hook lock 1-21.

Fixed side 21 in two inner side clasps of handrail 2.

Foot-driven lever assembly 9 is hinged on the entirety forming on pedal 92 by treadle 91, the upper end of treadle is closed frame, and lower end is straight rod-shaped, and the outer surface of framework has open slideway 911, in the 4th lockhole 912 on inner surface, snap close 8 is installed, as shown in Figure 5.

Each plastic assembly is made into, and respectively by handrail two ends, one end of back of the body bar is inserted corresponding on two halves vehicle frames 6 and is provided with in the handrail jack 613,633, back of the body bar jack 634 of snap close 8.

Treadle 91 utilizes sliding the fitting over outside half vehicle frame front bar 61 outer surface two side chutes 618 of open slideway 911 of upper end, and foot-driven lever assembly 9 is movably connected on two halves vehicle frame 6.

The both sides inserts of seat board 10 is placed in the open slot 511 of horizontal seatpost 51 inner sides, and insert seat board both sides by horizontal thin bar its spreading is fixed in horizontal seatpost 51, horizontal seatpost two ends be placed on two halves vehicle frame before, rear arc groove 612, in 632, and balancing pole 11 lower ends are inserted in the balancing pole perforation 626 in the middle of vehicle frame bar, the groove 532 covering on 531 inwalls of embracing on joint 53 is clasped ring muscle 625 places at bottom rail car bar, also inject the opening part of joint with base plate 534, Foldable assembly 5 is fixed on two halves vehicle frame, at top rail car bar platform, 624 places are fixedly connected with brake assemblies 4, the interior installation front-wheel 7 of front bar 61 lower end joint pin 617.

If handrail 2, back of the body bar assembly 1 will be taken out from car, at this moment need upwards to pull snap close 8, make the protruding button 8-1 on it depart from the through hole matching on handrail and back of the body bar, just can take out handrail or back of the body bar 1-1.

Also want first upwards to pull snap close 8 if regulate the high and low position of treadle 91, treadle is departed from the better upper and lower slippage of the regulating tank 615 contacting in front bar 61 to the position needing, decontrol snap close, the protruding button 8-1 on snap close resets to again another regulating tank 615 internal lockings in front bar again.

The support bar 52 being formed by left and right half support bar 522,523, the vehicle frame bar 62 that upper, lower horizontal car bar 622,623, car bar 621 form, back of the body bar 1-1, treadle 91 its cross sections can be the different shapes such as ellipse, circle, square, H shape, rectangle.

On two halves vehicle frame, can connect as required the trailing wheels of 20,24,26 cun of different sizes, in two horizontal seatposts 51, can connect one pair or two pairs of cross support bars 54 and form Foldable assembly 5.

Claims

1. a full-plastic wheelchair, by connecting Foldable assembly (5) on the vehicle frame forming at two and half vehicle frames (6), brake assemblies (4), foot-driven lever assembly (9), back of the body bar assembly (1), front-wheel (7), trailing wheel (3), handrail (2), seat board (10) composition, is characterized in that described half vehicle frame (6) is by front bar (61), vehicle frame bar (62), entirety that rear bar (63) connects into forms, described Foldable assembly (5) by one pair of above cross support bar (54) respectively with the horizontal seatpost (51) of band balancing pole (11), the entirety connecting into the joint (53) of base plate (534) forms, described foot-driven lever assembly (9) is connected on the upper formation of two halves vehicle frame (6) by the sliding accessory of the treadle (91) that is hinged with pedal (92), the entirety that described back of the body bar assembly (1) is connected into by lock ring (12) and push rod (1-3) by two back of the body bars (1-1) that are connected with backrest (1-4) forms, described handrail (2), back of the body bar assembly (1), in the lockhole of foot-driven lever assembly (9) and two halves vehicle frame (6) junction, snap close (8) is also installed.

2. full-plastic wheelchair according to claim 1, it is characterized in that there are the jack (613) of handrail (2) one end and the forward recess (612) of circular arc in described front bar (61) upper surface, inner surface has upper and lower two sleeve pipes (611,616), there is the first lockhole (614) communicating with jack (613) outer surface upper end, there is more than one regulating tank (615) centre, lower end one side has the joint pin (617) with through hole, has chute (618) on outer surface two side; There is jack (633), back of the body bar jack (634) and the circular arc rearward recess (632) of handrail (2) other end described rear bar (63) upper surface, on inner surface, have upper and lower two to take over (631,639), there is second, third lockhole (635,636) being arranged side by side that communicates with handrail, the back of the body bar jack front surface upper end; The entirety that vehicle frame bar (62) connects into by car bar (621) with the upper, lower horizontal car bar (622,623) of inside and outside seam forms, in the middle of it, there is balancing pole perforation (626), upper, lower horizontal car bar inwall has reinforcement, on the outer surface of car bar (621) and bottom rail car bar (623), have protruding ring muscle (625), vehicle frame bar upper/lower terminal head respectively with forward and backward bar inner surface on two sleeve pipes (611,616), two take over (631,639) injection mouldings be fixed into entirety half vehicle frame (6).

3. full-plastic wheelchair according to claim 1, it is characterized in that described Foldable assembly (5) by the two ends of four support bars (52) on two pairs of cross support bars (54) respectively with joint (53), horizontal seatpost (51) on two unions (512) be injection molded into entirety, balancing pole (11) is also installed in the retainer ring (513) of horizontal seatpost and is formed.

4. full-plastic wheelchair according to claim 1, it is characterized in that described Foldable assembly (5) by the two ends of two support bars (52) on one pair of cross support bar (54) respectively with joint (53), horizontal seatpost (51) on a union (512) be injection molded into entirety, balancing pole (11) is also installed in the retainer ring (513) of horizontal seatpost and is formed.

5. full-plastic wheelchair according to claim 1, it is characterized in that described back of the body bar assembly (1) is first inserted respectively in two lock rings (12) by push rod (1-3) two ends, insert again handle (1-2) end of two back of the body bars (1-1), and push rod, handle are fixed into entirety with lock ring (12), between two back of the body bars (1-1), fix backrest (1-4) and form.

6. full-plastic wheelchair according to claim 5, it is characterized in that described back of the body bar (1-1) is vertical bent angle bar, there is hook (1-11) corner, the lower surface of described handle (1-2) end has finger ripple, there is protruding pintle hook lock (1-21) at the edge of finger ripple, and upper surface has knurling, and push rod (1-3) is Qian shape, there is the ladder pipe of through hole at two ends in the middle of being, the cross section that in the middle of ladder pipe, boss (1-5) is located is kidney-shaped.

7. full-plastic wheelchair according to claim 1, the upper end that it is characterized in that described treadle (91) is closed frame, lower end is straight rod-shaped, the outer surface of framework has open slideway (911), sliding fitting over outside half vehicle frame front bar chute (618), is movably connected in foot-driven lever assembly on two halves vehicle frame (6).

8. full-plastic wheelchair according to claim 2, it is characterized in that described snap close (8) one end surfaces have arc fluting, the other end is stairstepping bar, it is leg-of-mutton button piece (8-1) that one side of arc fluting has convex cross section, in described first, second and third lockhole (614,635,636), snap close (8) is installed.

9. full-plastic wheelchair according to claim 6, it is characterized in that described lock ring (12) outer surface has corresponding finger ripple, inner surface collar extension end is circular, there is the flange (123) coordinating with boss (1-5) at the inwall place of collar extension end, inner surface internal orifice end is inclined-plane, and two junctions, inclined-plane have protruding, the recessed locking face of abnormity (121,122) to coordinate with pintle hook lock (1-21).

10. full-plastic wheelchair according to claim 3, it is characterized in that described support bar (52) by left and right half support bar (522,523) up and down each tight cover two ring sets (521) be buckled into entirety form, vehicle frame bar (62) is made up of upper, lower horizontal car bar (622,623), car bar (621), the shape that back of the body bar (1-1), its cross section of treadle (91) are oval, circular, square, rectangle, H shape is different.