CN210131019U - Wheelchair with adjustable backrest handle - Google Patents
Wheelchair with adjustable backrest handle Download PDFInfo
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- CN210131019U CN210131019U CN201920415026.0U CN201920415026U CN210131019U CN 210131019 U CN210131019 U CN 210131019U CN 201920415026 U CN201920415026 U CN 201920415026U CN 210131019 U CN210131019 U CN 210131019U
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Abstract
The utility model relates to a wheelchair field discloses a wheelchair with adjustable back handle, including wheelchair back, the first in command, second handle, the wheelchair back includes first vertical support bar, the vertical support bar of second, the first in command, the second handle respectively with the vertical flexible connection of first vertical support bar, the vertical bracing piece of second and horizontal swivelling joint. The wheelchair with the adjustable backrest handle can adjust the height of the backrest handle when in use and can be folded and stored when not in use.
Description
Technical Field
The utility model relates to a wheelchair field especially relates to a wheelchair with adjustable back handle.
Background
The existing wheelchair backrest handle cannot have at the same time: when the chair is used, the height can be adjusted according to users with different heights, and when the chair is not used, the backrest handle is folded, so that the occupied space is reduced.
Disclosure of Invention
An object of the utility model is to provide a wheelchair with adjustable back handle, this wheelchair with adjustable back handle can adjust the height of back handle and fold when not using simultaneously and accomodate.
The technical scheme is as follows:
wheelchair with adjustable back handle, including wheelchair back, the first in command, the second in command, the wheelchair back includes first vertical support bar, the vertical bracing piece of second, the first in command, the second in command respectively with the vertical flexible connection of first vertical support bar, the vertical bracing piece of second and horizontal swivelling joint.
The first handle comprises a first vertical handle rod and a first handle grip, the first vertical handle rod is connected with the first handle grip in a bending mode, the second handle comprises a second vertical handle rod and a second handle grip, the second vertical handle rod is connected with the second handle grip in a bending mode, and the first handle and the second handle grip are connected with the first vertical supporting rod and the second vertical supporting rod through the first vertical handle rod and the second vertical handle rod respectively.
The outer surfaces of the first grabbing handle and the second grabbing handle are respectively provided with a first lining and a second lining, and the first lining and the second lining are respectively provided with an anti-skidding groove.
The first bushing and the second bushing are made of plastic materials or rubber materials respectively.
The first vertical supporting rod and the second vertical supporting rod are respectively hollow to form a first slide way and a second slide way, and the first vertical handle rod and the second vertical handle rod are respectively inserted into the first slide way and the second slide way and are in vertical telescopic connection and horizontal rotary connection with the first vertical supporting rod and the second vertical supporting rod.
First slide, second slide are circular respectively, first vertical handle pole, the vertical handle pole of second are circular pole respectively, first vertical handle pole, the vertical handle pole of second respectively with be the vertical flexible connection of circular shape first slide, the vertical flexonics of second slide and horizontal swivelling joint.
Still include first stop gear, second stop gear, be equipped with first through-hole, second through-hole on the side of first vertical support bar, second vertical support bar respectively, first through-hole, second through-hole respectively with first slide, second slide UNICOM, first stop gear, second stop gear are installed respectively on first through-hole, the second through-hole, be equipped with first high restriction concave position, the high restriction concave position of second on first vertical handle bar, the vertical handle bar of second respectively, first high restriction concave position, the high restriction concave position of second respectively with the spacing block of first stop gear, second stop gear phase-match.
The first height limiting concave positions and the second height limiting concave positions are respectively multiple and are vertically arranged along the first vertical handle rod and the second vertical handle rod respectively.
The first limiting mechanism comprises a first bead ejecting cover, a first spring and a first rear cover, the first bead ejecting cover, the first spring and the first rear cover sequentially penetrate through the first through hole, and the first limiting mechanism is matched with the first height limiting concave position through the first bead ejecting cover in a limiting clamping mode; the second limiting mechanism comprises a second top bead cover, a second spring and a second rear cover, the second top bead cover, the second spring and the second rear cover sequentially penetrate through the second through hole, and the second limiting mechanism is clamped with the second height limiting concave position in a matched and limiting mode.
The first top bead cover and the second top bead cover are respectively provided with a first hemispherical protrusion and a second hemispherical protrusion towards one surfaces of the first slide way and the second slide way, the first height limiting concave position and the second height limiting concave position are respectively circular, and the first height limiting concave position and the second height limiting concave position which are circular are respectively matched and clamped with the first hemispherical protrusion and the second hemispherical protrusion.
First through-hole, second through-hole are equipped with first boss, second boss respectively in the one end that is close to first slide, second slide, first reason board, second reason board have respectively all around of first top bead lid, second top bead lid, first top bead lid, second top bead lid pass through respectively first reason board, second reason board with first boss, second boss are to near spacing.
First through-hole, second through-hole are equipped with first internal thread, second internal thread respectively in the one end of keeping away from first slide, second slide, the lid is equipped with first external screw thread, second external screw thread respectively behind first back lid, the second, first back lid, second back lid pass through respectively first external screw thread, second external screw thread with first internal thread, second internal thread phase-match threaded connection.
The first vertical handle rod and the second vertical handle rod are further respectively provided with a first folding limiting concave position and a second folding limiting concave position, and the first folding limiting concave position and the second folding limiting concave position are respectively matched with the first limiting mechanism and the second limiting mechanism in a limiting clamping mode.
It should be noted that:
the foregoing "first and second" do not denote any particular quantity or order, but rather are used to distinguish one name from another.
The foregoing "vertical" orientation or positional relationship is that which is conventionally used when the wheelchair back is positioned upright or upwardly when in use, or that which is conventionally understood by those skilled in the art, and is merely for convenience in describing and simplifying the present invention, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
The foregoing "lateral" is relative to, and not absolute to, the "vertical" merely to facilitate description of the invention and to simplify the description, and does not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
The advantages or principles of the invention are explained below:
1. the wheelchair with the adjustable backrest handle comprises a wheelchair backrest, a first handle and a second handle, wherein the first handle and the second handle are respectively in vertical telescopic connection and transverse rotary connection with a first vertical supporting rod and a second vertical supporting rod of the wheelchair backrest; the wheelchair with the adjustable backrest handle can adjust the height of the backrest handle when in use and can be folded and stored when not in use.
2. The first handle and the second handle are respectively connected with the first vertical supporting rod and the second vertical supporting rod through the first vertical handle rod and the second vertical handle rod, and the first handle and the second handle are respectively connected with the first vertical handle rod and the second vertical handle rod in a bending mode and are convenient to use.
3. The first bush and the second bush are respectively provided with an anti-slip groove, so that a wheelchair user can hold the first handle and the second handle more stably.
4. The first bush and the second bush are respectively made of plastic material or rubber material, so that the first handle and the second handle of the wheelchair can be more comfortable.
5. First vertical handle pole, the vertical handle pole of second inject first slide, second slide and first vertical support bar, the vertical flexible connection of second vertical support bar and horizontal swivelling joint respectively, make the altitude mixture control and the folding of first in command, second handle accomodate more conveniently.
6. First slide, second slide are circular respectively, first vertical handle pole, the vertical handle pole of second are circular pole respectively, make first vertical handle pole, the vertical handle pole of second respectively with the vertical flexible and the horizontal rotation of first slide, second slide more smooth and easy.
7. The wheelchair with the adjustable backrest handle further comprises a first limiting mechanism and a second limiting mechanism, and the first handle and the second handle are conveniently limited and fixed in the height-adjusted state.
8. The first height limit concave position and the second height limit concave position are respectively multiple, and multiple heights of the first handle and the second handle can be limited and fixed.
9. First stop gear includes first top pearl lid, first spring, first back lid, first stop gear is through the spacing block of first top pearl lid with the concave position phase-match of first high restriction, second stop gear includes second top pearl lid, the second spring, the lid behind the second, second stop gear is through the spacing block of second top pearl lid with the concave position phase-match of second high restriction, first stop gear, second stop gear utilizes the characteristic of the compression resilience of spring respectively, realize the first in command, the block of second in command is spacing.
10. The first top bead cover and the second top bead cover are respectively provided with a first hemispherical protrusion and a second hemispherical protrusion, and the first height limiting concave position and the second height limiting concave position are respectively circular, so that the clamping and the separation of the first top bead cover and the second top bead cover and the first height limiting concave position and the second height limiting concave position are more convenient.
11. First through-hole, second through-hole are equipped with first boss, second boss respectively, have first listrium, second listrium around first top bead lid, the second top bead lid respectively, avoid first top bead lid, second top bead lid to slide into first slide, second slide, have guaranteed the stability that first stop gear, second stop gear used.
12. The first rear cover and the second rear cover are respectively in threaded connection with the first internal thread and the second internal thread through the first external thread and the second external thread, so that the first rear cover and the second rear cover are respectively in more stable installation connection with the first through hole and the second through hole.
13. The first vertical handle rod and the second vertical handle rod are further respectively provided with a first folding limiting concave position and a second folding limiting concave position, and the folding state of the first handle and the folding state of the second handle are conveniently limited and fixed.
Drawings
Figure 1 is a perspective view of a wheelchair handle with an adjustable backrest handle, shown in an unelevated position, according to an embodiment of the present invention.
Fig. 2 is a perspective view of a wheelchair handle with an adjustable backrest handle according to an embodiment of the present invention in a raised state.
Fig. 3 is a perspective view of a wheelchair handle with an adjustable backrest handle according to an embodiment of the present invention in a folded state.
Fig. 4 is an exploded view of a backrest handle structure of a wheelchair with an adjustable backrest handle according to an embodiment of the present invention.
Fig. 5 is an exploded view of a backrest handle of a wheelchair with an adjustable backrest handle according to an embodiment of the present invention.
Fig. 6 is an exploded view of a first limit mechanism of a wheelchair with an adjustable backrest handle according to an embodiment of the present invention.
Fig. 7 is an exploded view of a second limiting mechanism of a wheelchair with an adjustable backrest handle according to an embodiment of the present invention.
Description of reference numerals:
10. a wheelchair backrest 11, a first vertical support bar 111, a first through hole 1111, a first boss 12, a second vertical support bar 121, a second through hole 1211, a second boss 20, a first handle 21, a first vertical handle bar 211, a first height limiting recess 212, a first folding limiting recess 22, a first handle 221, a first bushing 30, a second handle 31, a second vertical handle bar 311, the second height limiting concave position 312, the second folding limiting concave position 32, the second handle, 321, the second bushing 40, the first limiting mechanism 41, the first bead pushing cover 411, the first hemispherical protrusion 412, the first flange 42, the first spring 43, the first rear cover 50, the second limiting mechanism 51, the second bead pushing cover 511, the second hemispherical protrusion 512, the second flange 52, the second spring 53 and the second rear cover.
Detailed Description
The following describes embodiments of the present invention in detail.
As shown in fig. 1 to 7, the wheelchair with the adjustable backrest handle comprises a wheelchair backrest 10, a first handle 20 and a second handle 30, wherein the wheelchair backrest 10 comprises a first vertical support rod 11 and a second vertical support rod 12, and the first handle 20 and the second handle 30 are respectively in vertical telescopic connection and transverse rotary connection with the first vertical support rod 11 and the second vertical support rod 12.
The first handle 20 comprises a first vertical handle rod 21 and a first handle grip 22, the first vertical handle rod 21 is connected with the first handle grip 22 in a bending mode, the second handle 30 comprises a second vertical handle rod 31 and a second handle grip 32, the second vertical handle rod 31 is connected with the second handle grip 32 in a bending mode, and the first handle 20 and the second handle 30 are respectively connected with the first vertical support rod 11 and the second vertical support rod 12 through the first vertical handle rod 21 and the second vertical handle rod 31;
the outer surfaces of the first grab handle 22 and the second grab handle 32 are respectively provided with a first bush 221 and a second bush 321, and the first bush 221 and the second bush 321 are respectively provided with an anti-skid groove; preferably, the first bushing 221 and the second bushing 321 are made of plastic or rubber, respectively.
The first vertical support rod 11 and the second vertical support rod 12 are respectively hollow to form a first slideway and a second slideway, and the first vertical handle rod 21 and the second vertical handle rod 31 are respectively inserted into the first slideway and the second slideway to be vertically and telescopically connected with the first vertical support rod 11 and the second vertical support rod 12 and horizontally and rotatably connected with the first slideway and the second slideway;
preferably, the first slide and the second slide are circular respectively, the first vertical handle rod 21 and the second vertical handle rod 31 are circular rods respectively, and the first vertical handle rod 21 and the second vertical handle rod 31 are in vertical telescopic connection and horizontal rotary connection with the first slide and the second slide which are circular respectively.
The wheelchair with the adjustable backrest handle further comprises a first limiting mechanism 40 and a second limiting mechanism 50, wherein the side surfaces of the first vertical supporting rod 11 and the second vertical supporting rod 12 are respectively provided with a first through hole 111 and a second through hole 121, the first through hole 111 and the second through hole 121 are respectively communicated with a first slideway and a second slideway, the first limiting mechanism 40 and the second limiting mechanism 50 are respectively arranged on the first through hole 111 and the second through hole 121, the first vertical handle rod 21 is provided with a first height limiting concave position 211 and a first folding limiting concave position 212, and the first height limiting concave position 211 and the first folding limiting concave position 212 are respectively matched with the first limiting mechanism 40 for limiting and clamping; the second vertical handle bar 31 is provided with a second height limiting concave position 311 and a second folding limiting concave position 312, and the second height limiting concave position 311 and the second folding limiting concave position 312 are respectively matched with the second limiting mechanism 50 for limiting and clamping;
preferably, the first height limiting recessed portions 211 and the second height limiting recessed portions 311 are respectively multiple, and the multiple first height limiting recessed portions 211 and the multiple second height limiting recessed portions 311 are respectively vertically arranged along the first vertical handle bar 21 and the second vertical handle bar 31;
the first limiting mechanism 40 comprises a first bead pushing cover 41, a first spring 42 and a first rear cover 43, the first bead pushing cover 41, the first spring 42 and the first rear cover 43 sequentially penetrate through the first through hole 111, and the first limiting mechanism 40 is matched with the first height limiting concave position 211 through the first bead pushing cover 41 and is in limiting clamping; the second limiting mechanism 50 comprises a second ball-ejecting cover 51, a second spring 52 and a second rear cover 53, the second ball-ejecting cover 51, the second spring 52 and the second rear cover 53 sequentially penetrate through the second through hole 121, and the second limiting mechanism 50 is matched with the second height limiting concave part 311 through the second ball-ejecting cover 51 for limiting and clamping;
the first bead-ejecting cover 41 and the second bead-ejecting cover 51 are respectively provided with a first hemispherical protrusion 411 and a second hemispherical protrusion 511 towards one surface of the first slideway and one surface of the second slideway, the first height limiting concave position 211 and the second height limiting concave position 311 are respectively circular, and the circular first height limiting concave position 211 and the circular second height limiting concave position 311 are respectively matched and clamped with the first hemispherical protrusion 411 and the second hemispherical protrusion 511;
the first through hole 111 and the second through hole 121 are respectively provided with a first boss 1111 and a second boss 1211 at one end close to the first slideway and the second slideway, the peripheries of the first bead-pushing cover 41 and the second bead-pushing cover 51 are respectively provided with a first flange 412 and a second flange 512, and the first bead-pushing cover 41 and the second bead-pushing cover 51 are respectively abutted to limit through the first flange 412 and the second flange 512 and the first boss 1111 and the second boss 1211;
the first through hole 111 and the second through hole 121 are respectively provided with a first internal thread and a second internal thread at one end far away from the first slide way and the second slide way, the first rear cover 43 and the second rear cover 53 are respectively provided with a first external thread and a second external thread, and the first rear cover 43 and the second rear cover 53 are respectively in threaded connection with the first internal thread and the second internal thread through the first external thread and the second external thread.
The embodiment has the following advantages:
1. the wheelchair with the adjustable backrest handle comprises a wheelchair backrest 10, a first handle 20 and a second handle 30, wherein the first handle 20 and the second handle 30 are respectively in vertical telescopic connection and transverse rotary connection with a first vertical supporting rod 11 and a second vertical supporting rod 12 of the wheelchair backrest 10, the first handle 20 and the second handle 30 are respectively in vertical telescopic connection with the first vertical supporting rod 11 and the second vertical supporting rod 12 to realize the height adjusting function of the first handle 20 and the second handle 30, and the first handle 20 and the second handle 30 are respectively in transverse rotary connection with the first vertical supporting rod 11 and the second vertical supporting rod 12 to realize the transverse rotary folding function of the first handle 20 and the second handle 30; the wheelchair with the adjustable backrest handle can adjust the height of the backrest handle when in use and can be folded and stored when not in use.
2. The first handle 20 and the second handle 30 are respectively connected with the first vertical support rod 11 and the second vertical support rod 12 through the first vertical handle rod 21 and the second vertical handle rod 31, and the first handle 22 and the second handle 32 are respectively connected with the first vertical handle rod 21 and the second vertical handle rod 31 in a bending mode, so that the use is convenient.
3. The first bushing 221 and the second bushing 321 have anti-slip grooves, respectively, so that the wheelchair user can hold the first handle 20 and the second handle 30 more stably.
4. The first bushing 221 and the second bushing 321 are made of plastic or rubber respectively, so that the first handle 20 and the second handle 30 are more comfortable for the wheelchair rider to push.
5. First vertical handle pole 21, the vertical handle pole 31 of second inject first slide, second slide and first vertical support rod 11, the vertical telescopic connection of second vertical support rod 12 and horizontal swivelling joint respectively, make the altitude mixture control and the folding of first in command 20, second in command 30 accomodate more conveniently.
6. First slide, second slide are circular respectively, first vertical handle pole 21, the vertical handle pole 31 of second are circular pole respectively, make first vertical handle pole 21, the vertical handle pole 31 of second respectively with the vertical flexible and horizontal rotation more smooth and easy of first slide, second slide.
7. The wheelchair with the adjustable backrest handle further comprises a first limiting mechanism 40 and a second limiting mechanism 50, so that the height of the first handle 20 and the height of the second handle 30 can be conveniently limited and fixed after being adjusted.
8. The first height limiting concave parts 211 and the second height limiting concave parts 311 are respectively multiple, so that the limiting and fixing of the first handle 20 and the second handle 30 at multiple heights can be realized.
9. First stop gear 40 includes first top pearl lid 41, first spring 42, lid 43 behind the first, first stop gear 40 is through first top pearl lid 41 and the spacing block of first height restriction concave position 211 phase-match, second stop gear 50 is including second top pearl lid 51, second spring 52, lid 53 behind the second, second stop gear 50 is through second top pearl lid 51 and the spacing block of second height restriction concave position 311 phase-match, first stop gear 40, second stop gear 50 utilizes the characteristic of the compression resilience of spring respectively, realize first handle 20, the block of second handle 30 is spacing.
10. The first and second bead caps 41 and 51 have first and second hemispherical protrusions 411 and 511, respectively, and the first and second height-restricting concave portions 211 and 311 are circular, respectively, so that the first and second bead caps 41 and 51 are more conveniently engaged with and disengaged from the first and second height-restricting concave portions 211 and 311.
11. The first through hole 111 and the second through hole 121 are respectively provided with a first boss 1111 and a second boss 1211, the peripheries of the first top bead cover 41 and the second top bead cover 51 are respectively provided with a first flange 412 and a second flange 512, so that the first top bead cover 41 and the second top bead cover 51 are prevented from sliding into the first slideway and the second slideway, and the use stability of the first limiting mechanism 40 and the second limiting mechanism 50 is ensured.
12. The first rear cover 43 and the second rear cover 53 are respectively in threaded connection with the first internal thread and the second internal thread through the first external thread and the second external thread, so that the first rear cover 43 and the second rear cover 53 are respectively in more stable installation connection with the first through hole 111 and the second through hole 121.
13. The first vertical handle bar 21 and the second vertical handle bar 31 are further respectively provided with a first folding limiting concave position 212 and a second folding limiting concave position 312, so that the folded states of the first handle 20 and the second handle 30 can be conveniently limited and fixed.
The above are only specific embodiments of the present invention, and the protection scope of the present invention is not limited thereby; any replacement and improvement made on the basis of not violating the conception of the utility model belong to the protection scope of the utility model.
Claims (13)
1. Wheelchair with adjustable back handle, its characterized in that includes wheelchair back, the first in command, the second in command, the wheelchair back includes first vertical support bar, the vertical bracing piece of second, the first in command, the second in command respectively with the vertical flexible connection of first vertical support bar, the vertical bracing piece of second and horizontal swivelling joint.
2. The wheelchair of claim 1, wherein the first handle comprises a first vertical handle bar and a first handle grip, the first vertical handle bar is connected with the first handle grip in a bent manner, the second handle comprises a second vertical handle bar and a second handle grip, the second vertical handle bar is connected with the second handle grip in a bent manner, and the first handle grip and the second handle grip are connected with the first vertical support bar and the second vertical support bar through the first vertical handle bar and the second vertical handle bar, respectively.
3. The wheelchair of claim 2 wherein the first and second handlebars have first and second bushings on their outer surfaces, the first and second bushings having anti-slip grooves thereon.
4. The wheelchair of claim 3 in which the first and second bushings are each plastic or rubber.
5. The wheelchair of any one of claims 2 to 4, wherein the first vertical support bar and the second vertical support bar are hollow to form a first slideway and a second slideway, respectively, and the first vertical handle bar and the second vertical handle bar are inserted into the first slideway and the second slideway, respectively, and are in vertical telescopic connection and horizontal rotary connection with the first vertical support bar and the second vertical support bar.
6. The wheelchair of claim 5 in which the first and second ramps are each circular, the first and second vertical handle bars are each circular bars, and the first and second vertical handle bars are each telescopically and rotationally connected to the first and second ramps which are circular in shape.
7. The wheelchair with the adjustable backrest handle as claimed in claim 5, further comprising a first limiting mechanism and a second limiting mechanism, wherein the first vertical support rod and the second vertical support rod are respectively provided with a first through hole and a second through hole on the side surface, the first through hole and the second through hole are respectively communicated with the first slideway and the second slideway, the first limiting mechanism and the second limiting mechanism are respectively installed on the first through hole and the second through hole, the first vertical handle rod and the second vertical handle rod are respectively provided with a first height limiting concave position and a second height limiting concave position, and the first height limiting concave position and the second height limiting concave position are respectively matched with the first limiting mechanism and the second limiting mechanism for limiting and clamping.
8. The wheelchair of claim 7 wherein the first height-limiting depression and the second height-limiting depression are respectively a plurality of depressions, and the first height-limiting depression and the second height-limiting depression are respectively vertically aligned along the first vertical handle bar and the second vertical handle bar.
9. The wheelchair of claim 7 wherein the first limiting mechanism comprises a first top bead cover, a first spring, and a first rear cover, the first top bead cover, the first spring, and the first rear cover sequentially passing through the first through hole, the first limiting mechanism engaging with the first height limiting recess via the first top bead cover; the second limiting mechanism comprises a second top bead cover, a second spring and a second rear cover, the second top bead cover, the second spring and the second rear cover sequentially penetrate through the second through hole, and the second limiting mechanism is clamped with the second height limiting concave position in a matched and limiting mode.
10. The wheelchair of claim 9 wherein the first and second top bead covers have first and second hemispherical protrusions on respective sides facing the first and second slides, the first and second height-limiting recesses are circular, and the circular first and second height-limiting recesses are engaged with the first and second hemispherical protrusions.
11. The wheelchair of claim 9, wherein the first through hole and the second through hole are respectively provided with a first boss and a second boss at one end close to the first slideway and the second slideway, the first top bead cover and the second top bead cover are respectively provided with a first flange and a second flange at the periphery, and the first top bead cover and the second top bead cover are respectively close to and limited by the first flange and the second flange.
12. The wheelchair of claim 9, wherein the first through hole and the second through hole are respectively provided with a first internal thread and a second internal thread at ends far away from the first slideway and the second slideway, the first rear cover and the second rear cover are respectively provided with a first external thread and a second external thread, and the first rear cover and the second rear cover are respectively in threaded connection with the first internal thread and the second internal thread through the first external thread and the second external thread.
13. The wheelchair of claim 7 wherein the first vertical handle bar and the second vertical handle bar are further provided with a first folding limiting concave position and a second folding limiting concave position, respectively, and the first folding limiting concave position and the second folding limiting concave position are respectively matched with the first limiting mechanism and the second limiting mechanism for limiting and clamping.
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CN201920415026.0U CN210131019U (en) | 2019-03-28 | 2019-03-28 | Wheelchair with adjustable backrest handle |
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CN201920415026.0U CN210131019U (en) | 2019-03-28 | 2019-03-28 | Wheelchair with adjustable backrest handle |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112515873A (en) * | 2020-11-26 | 2021-03-19 | 苏燕开 | Wheelchair capable of being adjusted in real time based on human body state |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112515873A (en) * | 2020-11-26 | 2021-03-19 | 苏燕开 | Wheelchair capable of being adjusted in real time based on human body state |
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