CN104546329A - Wheelchair backrest adjusting device - Google Patents
Wheelchair backrest adjusting device Download PDFInfo
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- CN104546329A CN104546329A CN201310486148.6A CN201310486148A CN104546329A CN 104546329 A CN104546329 A CN 104546329A CN 201310486148 A CN201310486148 A CN 201310486148A CN 104546329 A CN104546329 A CN 104546329A
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- hole
- backrest
- wheelchair
- screw rod
- seat
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Abstract
The invention provides a wheelchair backrest adjusting device comprising upper backrest tubes, lower backrest tubes and knob mechanisms. Backrest tube seats are arranged at the upper ends of the lower backrest tubes, and connectors matched with the backrest tube seats are arranged at the lower ends of the upper backrest tubes. Each knob mechanism comprises a screw rod, a nut column, an adjusting knob and a set screw. The nut columns are positioned in the connectors, and the screw rods are in fastening connection with the adjusting knobs through the set screws after penetrating the backrest tube seats, the connectors and the nut columns in the connectors. Compared with the prior art, the wheelchair backrest adjusting device has the advantages of capability of adjusting angles of a backrest, simple structure, convenience in operation and capabilities of meeting users' requirements on different backrest angles and improving users' comfort level.
Description
Technical field
The present invention relates to wheelchair field, particularly relate to a kind of wheelchair backrest regulation device.
Background technology
For most the disabled, because limiting by health flexibility ratio, the time of their overwhelming majority has to spend on wheelchair, and on wheelchair, keep a kind of sitting posture for a long time, also certainly will can cause fatigue, severe patient, the diseases such as disturbance of blood circulation, digestion and gastrointestinal function slow down, osteoporosis can be caused, body constitution degradation, this is all unfavorable concerning body and mind the people of script disability.Therefore in order to allow user can have larger activity space as much as possible on wheelchair, and the disabled can be adjusted as required or convert sitting posture, have developed the multiple wheelchair possessing angle of back-rest regulatory function at present.Authorization Notice No. be CN201624903U patent discloses a kind of angle adjusting structure for wheelchair backrest, comprise support bar, ejector sleeve, hinge and regulating part; Wherein, hinge has stiff end, round end and articulated section, stiff end is fixed on wheelchair support bar, its upper end is intervally distributed with some draw-in grooves from vertical direction is curved backward, round end is fixed on ejector sleeve, and above articulated section, form an accommodation space, the sidewall that accommodation space is downward has a fluting; Regulating part comprises spring, push button and roller, and spring is positioned at accommodation space, and its one end abuts with the body of rod of push button, and the other end contacts the bottom in accommodation space; The body of rod of push button is formed a lozenges, the initiating terminal of lozenges is positioned at the fluting place of accommodation space; Roller is embedded at fluting place, and its upper surface contacts with the initiating terminal of lozenges, and lower surface falls in arbitrary draw-in groove.
Although this patent can complete the adjustment of wheelchair backrest angle, the complicated structure of this angle adjusting structure for wheelchair backrest.In view of above-mentioned defect, creator of the present invention obtains this creation finally through long research and practice.
Summary of the invention
The object of the present invention is to provide a kind of wheelchair backrest regulation device, in order to overcome above-mentioned technological deficiency.
For achieving the above object, the invention provides a kind of wheelchair backrest regulation device, this device comprises upper backrest pipe, lower back pipe and Knob mechanisms, the upper end of described lower back pipe is provided with penstock seat, the lower end of described upper backrest pipe is provided with the union joint matched with described penstock seat, described Knob mechanisms comprises screw rod, Nut column, adjusting knob and holding screw, it is inner that described Nut column is positioned at described union joint, described screw rod is each passed through described penstock seat, after Nut column in union joint and union joint, be fastenedly connected by described holding screw and described adjusting knob.
Further, described penstock seat is provided with recess, the symmetrical two sides of described recess is respectively provided with the first through hole that position is corresponding, the below of described recess with described first through hole vertical direction on be provided with the second through hole.
Further, described union joint with described first through hole parallel direction on be provided with third through-hole, with described first through hole vertical direction on be provided with fourth hole, fifth hole is provided with above described third through-hole, described second through hole is corresponding with fourth hole, and described first through hole is corresponding with fifth hole.
Further, described Nut column is placed in described third through-hole, described adjusting knob is provided with locking hole, and described screw rod is successively through behind described second through hole, fourth hole and clematis stem hole, and described screw rod and described adjusting knob are locked through described locking hole by described holding screw.
Beneficial effect of the present invention is: wheelchair backrest regulation device provided by the invention is when rotation of adjustment knob, due to adjusting knob and screw rod fastened, screw rod meeting synchronous rotary, and screw rod rotate time Nut column owing to securing direction of rotation, so Nut column is along screw rod swing, upper backrest pipe is driven to rotate around screw centrage during screw rod swing, thus achieve the adjustment of wheelchair backrest angle, and structure is simple, convenient operation, the needs of the different backrest angles of user can be met, improve the comfort level of user.
Accompanying drawing explanation
Fig. 1 is the perspective view of wheelchair backrest regulation device of the present invention;
Fig. 2 is the Knob mechanisms perspective view in wheelchair backrest regulation device of the present invention;
Fig. 3 is perspective view wheelchair backrest regulation device of the present invention being applied in a kind of wheelchair in wheelchair;
Fig. 4 is the one-sided perspective view of the wheelchair in Fig. 3;
Fig. 5 is the axle assembly of wheelchair in Fig. 3 and the perspective view of stay pipe;
Fig. 6 is the perspective view of the recliner of wheelchair in Fig. 3.
Detailed description of the invention
Below in conjunction with accompanying drawing, to above-mentioned being described in more detail with other technical characteristic and advantage of the present invention.
As depicted in figs. 1 and 2, wheelchair backrest regulation device provided by the invention comprises seat back arm 61, upper backrest pipe 62, lower back pipe 63, Knob mechanisms 64 and backing cushion 65.Wherein, Knob mechanisms 64 comprises screw rod 641, Nut column 642, adjusting knob 643 and holding screw 644, and the upper end of upper backrest pipe 62 is fixedly connected with seat back arm 61, and lower end is connected with the upper end of lower back pipe 63 by Knob mechanisms 64.The upper end of lower back pipe 63 is provided with penstock seat, and this penstock seat is provided with recess 631, the symmetrical two sides of this recess 631 is respectively provided with the first through hole 632 that position is corresponding, the below of this recess 631 with the first through hole 632 vertical direction on be provided with the second through hole 633.The lower end of upper backrest pipe 62 is provided with the union joint matched with penstock seat, this union joint with the first through hole 632 parallel direction on be provided with third through-hole 623, with the first through hole 632 vertical direction on be provided with fourth hole 622, fifth hole 621 is provided with above third through-hole 623, when this union joint puts into penstock seat, second through hole 633 and fourth hole 622 just in time corresponding, first through hole 632 and fifth hole 621 just in time corresponding, Nut column 642 is provided with the clematis stem hole 6421 that screw rod 641 can be allowed to pass, and adjusting knob 643 is provided with locking hole 6431.
During assembling, first Nut column 642 is placed in third through-hole 623, then union joint is put into penstock seat, again screw 12 is tightened with nut 13 through the first through hole 632 and fifth hole 621 successively, now upper backrest pipe 62 and lower back pipe 63 link into an integrated entity, again screw rod 641 is connected with adjusting knob 643 through behind the second through hole 633, fourth hole 622 and clematis stem hole 6421 successively, then through locking hole 6431, screw rod 641 and adjusting knob 643 is locked with holding screw 644.When rotation of adjustment knob 643, due to adjusting knob 643 and screw rod 641 fastened, screw rod 641 meeting synchronous rotary, and screw rod 641 when rotating Nut column 642 owing to securing direction of rotation, so Nut column 642 is along screw rod 641 swing, upper backrest pipe 62 is driven to rotate around screw 12 centrage during screw rod 641 swing, because backing cushion 65 adopts soft material to make to be connected on upper backrest pipe 62 and lower back pipe 63 simultaneously, when there is Angulation changes in upper backrest pipe 62, backing cushion 65 top can change along with the Angulation changes of upper backrest pipe 62, thus meet the different backrest angle needs of user, and then improve the comfort of user.When user wants adjustment backrest angle, only need rotation of adjustment knob 643 just can by the angle adjustment of backrest to suitable angle, easy and simple to handle, and also structure is also simple.
Now wheelchair backrest regulation device provided by the invention is applied in a kind of wheelchair.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, this wheelchair comprises: big wheel 1, vehicle frame 2, seat support 3, universal wheels 4, armrest assembly 5, recliner 6, axle assembly 7, X bracing frame 8, protect skirtboard 9, pedal 10 and mobile connect part 15.Wherein, vehicle frame 2 comprises stay pipe 21, lower limb trustship 22 and foot trustship 23.Universal wheels 4 comprise wheels connector 41, wheels rotating mechanism 42, wheel fork 43 and trundle 44.Armrest assembly 5 comprises fitting 53 and arm supports 54 after handrail 51, handrail connection tube 52, handrail.Recliner 6 comprises seat back arm 61, upper backrest pipe 62, lower back pipe 63, Knob mechanisms 64 and backing cushion 65.Axle assembly 7 comprises wheel shaft fixture block 71, hub 72 and axle bracket 73.
Big wheel 1 lays respectively at the left and right sides of vehicle frame 2, and the outside of big wheel 1 is also provided with radius and is less than high-wheeled handwheel 11, and when not having other people to promote, user can make wheelchair advance with hands by handwheel 11 voluntarily.Seat support 3 and protect the top that skirtboard 9 is all positioned at vehicle frame 2, recliner 6, protects skirtboard 9 and seat support 3 surrounds a space being available for users to sit down.Armrest assembly 5 is positioned at the left and right sides of recliner 6, axle assembly 7 is positioned at the below of seat support 3 and is arranged on vehicle frame 2, X bracing frame 8 is also positioned at the below of seat support 3, the upper end of its side is fixedly connected with wheel shaft fixture block 71, lower end is fixedly connected with the lower end of hub 72, when axle assembly 7 moves, X bracing frame also moves with axle assembly 7, thus can guarantee the reasonable mechanical of whole wheelchair.The lower end of lower back pipe 63 is provided with shift joint, the side, inside of this shift joint is provided with mobile chute, mobile even one end of part 15 and the side, lower end of hub 72 are coupling, the other end is arranged in mobile chute, and can move in chute and move at this, with screw, movement even part can be fixed on this when moving to correct position to move in chute, thus further increase the steadiness of wheelchair.
The upper end of the upper backrest pipe 62 in recliner 6 is fixedly connected with seat back arm 61, lower end is connected with the upper end of lower back pipe 63 by Knob mechanisms 64, the lower end of lower back pipe 63 is fixedly connected with the stay pipe 21 of vehicle frame 2, is also welded with angle iron 14 makes this connecting portion more firm at portion's backing tube 63 with the connecting portion of stay pipe 21.The upper end of lower back pipe 63 is provided with penstock seat, and this penstock seat is provided with recess 631, the symmetrical two sides of this recess 631 is respectively provided with the first through hole 632 that position is corresponding, the below of this recess 631 with the first through hole 632 vertical direction on be provided with the second through hole 633.The lower end of upper backrest pipe 62 is provided with the union joint matched with penstock seat, this union joint with the first through hole 632 parallel direction on be provided with third through-hole 623, with the first through hole 632 vertical direction on be provided with fourth hole 622, fifth hole 621 is provided with above third through-hole 623, when this union joint puts into penstock seat, second through hole 633 and fourth hole 622 just in time corresponding, the first through hole 632 and fifth hole 621 just in time corresponding.Knob mechanisms 64 comprises screw rod 641, Nut column 642, adjusting knob 643 and holding screw 644, and Nut column 642 is provided with the clematis stem hole 6421 that screw rod 641 can be allowed to pass.During assembling, first Nut column 642 is placed in third through-hole 623, then union joint is put into penstock seat, again screw 12 is tightened with nut 13 through the first through hole 632 and fifth hole 621 successively, now upper backrest pipe 62 and lower back pipe 63 link into an integrated entity, again screw rod 641 is connected with adjusting knob 643 through behind the second through hole 633, fourth hole 622 and clematis stem hole 6421 successively, then use holding screw 644 by screw rod 641 and adjusting knob 643 fastening.When rotation of adjustment knob 643, due to adjusting knob 643 and screw rod 641 fastened, screw rod 641 meeting synchronous rotary, and screw rod 641 when rotating Nut column 642 owing to securing direction of rotation, so Nut column 642 is along screw rod 641 swing, upper backrest pipe 62 is driven to rotate around screw 12 centrage during screw rod 641 swing, because backing cushion 65 adopts soft material to make to be connected on upper backrest pipe 62 and lower back pipe 63 simultaneously, when there is Angulation changes in upper backrest pipe 62, backing cushion 65 top can change along with the Angulation changes of upper backrest pipe 62, thus meet the different backrest angle needs of user, and then improve the comfort of user.
As shown in Figure 4 and Figure 5, wheel shaft fixture block 71 one end of axle assembly 7 and the stay pipe 21 of vehicle frame 2 removably connect, and the other end is fixedly connected with hub 72, protect skirtboard 9 and removably connect with wheel shaft fixture block 71, one end of axle bracket 73 is sheathed on hub 72, and the other end is for installing big wheel 1.In the present embodiment, along its horizontal-extending direction being provided with at least two the first locating holes 211 on stay pipe 21, have unified equidistant from distance between this first locating hole 211, the spacing certainly in other embodiments between the first locating hole can not wait.The lower end edge vertical direction protecting skirtboard 9 arranges at least two the second locating holes 91, and have unified equidistant from distance between this second locating hole 91, the spacing certainly in other embodiments between the second locating hole can not wait.The upper end of wheel shaft fixture block 71 is respectively equipped with seven through hole 711 corresponding to the first locating hole 211 and eight through hole 712 corresponding with the second locating hole 91, when assembling, first wheel shaft fixture block 71 is clipped on stay pipe 21, wheel shaft fixture block 71 is fastened on stay pipe 21 by the 7th through hole 711 and the first locating hole 211 by recycling holding screw, owing to there being multiple first locating hole 211, so wheel shaft fixture block 71 can regulate mobile before and after stay pipe 21, hub 72 moves with wheel shaft fixture block 71 with axle bracket 73, big wheel 1 does movable relative to the stay pipe 21 of vehicle frame 2, thus achieve the adjustment of wheelchair rotary middle point.The side of hub 72 is provided with multiple arc opening 721 vertically, have unified equidistant from distance between this arc opening 721, and the spacing certainly in other embodiments between arc opening 721 can not wait.Axle bracket 73 is provided with nine through hole 731 corresponding to arc opening 721, during assembling, axle bracket 73 is set on hub 72, the 9th through hole 731 and arc opening 721 and nut screwing clamping is each passed through with screw rod, being fastenedly connected, owing to there being multiple arc opening 721, so axle bracket 73 can move along hub 72 up-down adjustment of hub 72 and axle bracket 73 can be realized, big wheel 1 moves up and down relative to hub 72, thus achieves the high adjustment of wheel seat support.The above-mentioned adjustment taking turns seat support height and rotary middle point can synchronicly regulate, and also can regulate one of them separately, thus meets the different demand using colony.
One end of wheels connector 41 in universal wheels 4 is fixedly connected in the lower limb trustship 22 of vehicle frame 2, the other end is connected with one end of wheel fork 43 by wheels rotating mechanism 42, wheels rotating mechanism 42 can realize 360 ° of rotations, the other end of wheel fork 43 is connected with trundle 44, wheel fork 43 is provided with multiple positioning hole 431 along its vertical direction, this positioning hole 431, for placing the bearing of trundle 44, can realize the altitude mixture control of universal wheels by being connected by the positioning hole 431 of the bearing of trundle 44 and differing heights.In addition because wheels rotating mechanism 42 can realize 360 ° of rotations, by can moving to any direction with the use of the wheelchair made of big wheel 1 and trundle 2.After having regulated and taking turns seat support height, can regulate the height of trundle 44 accordingly, the wheelchair made has run more stably.Can stretch in one end of the foot trustship 23 of vehicle frame 2 in lower limb trustship 22, the other end of foot trustship 23 is fixedly connected with pedal 10, during use, foot trustship 23 is moved to suitable position, is then fastened in lower limb trustship 22 with securing member 24.Owing to there being multiple second locating hole 91, can be moved up and down on wheel shaft fixture block 71 by the second locating hole 91 and the 8th through hole 712 so protect skirtboard 9, thus realize the altitude mixture control protecting group plate 9.In addition when not adjusting the height protecting skirtboard 9, being fixedly connected with wheel shaft fixture block 71 owing to protecting skirtboard 9, protecting skirtboard 9 when fixing fixture block 71 moves and also following it and move.
As shown in Figure 6, the upper end of the handrail connection tube 52 in armrest assembly 5 is fixedly connected with handrail 51, after handrail, fitting 53 to be enclosed within handrail connection tube 52 and to be coupling with one end of arm supports 54, the other end of arm supports 54 is fixedly connected on the lower end of the lower back pipe 63 of recliner 6, removably connect between fitting 53 after handrail connection tube 52 and handrail, corresponding distance can be moved on demand in the fitting after handrail 53 of i.e. handrail connection tube 52, in this enforcement, handrail connection tube 52 is along its vertical direction being provided with at least two the 3rd locating holes 521, between 3rd locating hole 521, there is unified equidistant from distance, certainly the spacing in other embodiments between the 3rd locating hole can not wait.After handrail, fitting 53 is provided with ten through hole 531 corresponding to the 3rd locating hole, when assembling, by screw rod respectively from the tenth through hole 531 and the 3rd locating hole 521 through rear with nut screwing clamping after, handrail connection tube 52 can be fixed on after handrail on fitting 53, when adjusting the height of handrail 51, screw rod is pulled out, handrail connection tube 52 is risen or declines be applicable to height after, again by screw rod and nut screwing clamping, the adjustment of handrail height can be realized, thus meet the differing heights needs of user.Be connected owing to adopting the mode be coupling between fitting after handrail 53 with arm supports 54, namely after handrail, fitting 53 can rotate to an angle around arm supports 54, the adjustment of handrail angle can be realized, thus meet the different handrail angle needs of user, and then improve the comfort of user.
The foregoing is only preferred embodiment of the present invention, is only illustrative for invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes in the spirit and scope that claim limits to it, amendment, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (4)
1. a wheelchair backrest regulation device, it is characterized in that, this device comprises upper backrest pipe, lower back pipe and Knob mechanisms, the upper end of described lower back pipe is provided with penstock seat, the lower end of described upper backrest pipe is provided with the union joint matched with described penstock seat, described Knob mechanisms comprises screw rod, Nut column, adjusting knob and holding screw, it is inner that described Nut column is positioned at described union joint, after described screw rod is each passed through the Nut column in described penstock seat, union joint and union joint, be fastenedly connected by described holding screw and described adjusting knob.
2. wheelchair backrest regulation device according to claim 1, it is characterized in that, described penstock seat is provided with recess, the symmetrical two sides of described recess is respectively provided with the first through hole that position is corresponding, the below of described recess with described first through hole vertical direction on be provided with the second through hole.
3. wheelchair backrest regulation device according to claim 2, it is characterized in that, described union joint with described first through hole parallel direction on be provided with third through-hole, with described first through hole vertical direction on be provided with fourth hole, fifth hole is provided with above described third through-hole, described second through hole is corresponding with fourth hole, and described first through hole is corresponding with fifth hole.
4. wheelchair backrest regulation device according to claim 3, it is characterized in that, described Nut column is placed in described third through-hole, described adjusting knob is provided with locking hole, described screw rod is successively through behind described second through hole, fourth hole and clematis stem hole, and described screw rod and described adjusting knob are locked through described locking hole by described holding screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310486148.6A CN104546329A (en) | 2013-10-17 | 2013-10-17 | Wheelchair backrest adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310486148.6A CN104546329A (en) | 2013-10-17 | 2013-10-17 | Wheelchair backrest adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104546329A true CN104546329A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310486148.6A Pending CN104546329A (en) | 2013-10-17 | 2013-10-17 | Wheelchair backrest adjusting device |
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| Country | Link |
|---|---|
| CN (1) | CN104546329A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108635118A (en) * | 2018-05-14 | 2018-10-12 | 仪修芹 | A kind of psychiatric nursing intelligent nursing device |
-
2013
- 2013-10-17 CN CN201310486148.6A patent/CN104546329A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108635118A (en) * | 2018-05-14 | 2018-10-12 | 仪修芹 | A kind of psychiatric nursing intelligent nursing device |
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Application publication date: 20150429 |