CN219109993U - Wheelchair capable of being unfolded and folded rapidly - Google Patents
Wheelchair capable of being unfolded and folded rapidly Download PDFInfo
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- CN219109993U CN219109993U CN202220818346.2U CN202220818346U CN219109993U CN 219109993 U CN219109993 U CN 219109993U CN 202220818346 U CN202220818346 U CN 202220818346U CN 219109993 U CN219109993 U CN 219109993U
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- leg assembly
- rod
- support leg
- positioning bolt
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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Abstract
The utility model relates to the technical field of chairs, and discloses a rapid unfolding and folding wheelchair which comprises a cushion structure, a backrest structure, a front support leg assembly, a rear support leg assembly, armrests and casters; the upper end of the rear support leg assembly is connected with each armrest through a quick locking structure; the quick locking structure comprises an inner support rod, a positioning bolt and an elastic limiting sleeve; the upper end of the rear support leg assembly is provided with a rod cavity; the inner support rod is matched and sleeved in the rod cavity; one end of the positioning bolt can penetrate through the outer side of the upper end of the rear leg assembly to be connected with the inner supporting rod so as to fix the inner supporting rod on the leg assembly; the other end of the positioning bolt is exposed out of the upper end of the rear leg assembly; the elastic limit sleeve is connected to the rear support leg assembly and wraps the other end of the positioning bolt. The application provides a quick expansion and folding wheelchair realizes that this quick expansion and folding wheelchair expand and fold, easy dismounting, not fragile, simultaneously, to the effect of location bolt location moreover, prevent the roll-off of location bolt, the aesthetic property is good.
Description
Technical Field
The utility model relates to the technical field of chairs, in particular to a wheelchair capable of being unfolded and folded rapidly.
Background
Wheelchairs are chairs provided with wheels to help to replace walking, and are divided into electric and manual folding wheelchairs. Existing manual folding wheelchairs generally consist of a foldable frame, front and rear wheels, armrests, seats, a backrest, and an unlocking structure. However, the conventional unlocking structure of the existing manual folding wheelchair generally includes a latch and a jack, and there is a case where one end of the latch protrudes or slides out after the latch is inserted into the jack, in which case the one end of the latch is liable to stab the skin of a person, pain or hurt the user.
Disclosure of Invention
The utility model aims to overcome the problems of the prior art and provides a wheelchair capable of being unfolded and folded quickly and being operated more simply.
In order to achieve the above purpose, the present utility model adopts the following scheme:
a wheelchair capable of being unfolded and folded rapidly comprises a cushion structure, a backrest structure, a front support leg assembly, a rear support leg assembly, armrests and casters; the rear end of the cushion structure is hinged with the lower end of the backrest structure, and the front support leg assemblies are respectively hinged with two sides of the front end of the cushion structure; the rear support leg assemblies are respectively hinged with two sides of the rear end of the cushion structure; the upper ends of the front leg assemblies are respectively hinged with the front ends of the two armrests; the two armrests are respectively positioned at two sides of the cushion; the rear ends of the two armrests are respectively hinged with two sides of the backrest structure; the lower ends of the front support leg assembly and the rear support leg assembly are respectively provided with the casters;
the upper end of the rear support leg assembly is connected with each handrail through a quick locking structure; the quick locking structure comprises an inner support rod, a positioning bolt and an elastic limiting sleeve; the upper end of the rear support leg assembly is provided with a rod cavity; the inner support rod is sleeved in the rod cavity in a matched manner; one end of the positioning bolt can penetrate through the outer side of the upper end of the rear support leg assembly to be connected with the inner support rod so as to fix the inner support rod on the support leg assembly; the other end of the positioning bolt is exposed out of the upper end of the rear support leg assembly; the elastic limiting sleeve is connected to the rear support leg assembly and wraps the other end of the positioning bolt.
Further, the rear leg assembly includes a rear strut and a rear cross bar; the lower ends of the two rear supporting rods are connected through the rear cross rod; the two rear supporting rods are respectively hinged with two sides of the rear end of the cushion structure; the castor is arranged at the bottom end of the rear supporting rod;
the upper end of the rear supporting rod is connected with the handrail through a quick locking structure; the outer side of the upper end of the rear supporting rod is provided with a first through hole; a second through hole which can be aligned with the first through hole is formed in the length direction of the inner support rod; when the inner support rod is sleeved in the rod cavity in a matched mode and the first through hole is aligned with the second through hole, one end of the positioning bolt is inserted into the first through hole and the second through hole in a penetrating mode to fix the inner support rod on the rear support rod.
Further, the elastic limiting sleeve comprises a fixed sleeve and a limiting clamping sleeve; the fixed sleeve is matched and sleeved on the upper end of the rear supporting rod; the limiting clamping sleeve is connected with the fixing sleeve, and the other end of the positioning bolt is sleeved with the position corresponding to the first through hole, and is clamped on the upper end of the rear supporting rod.
Further, a bolt limiting concave part for positioning the other end of the positioning bolt is arranged on the inner side of the limiting clamping sleeve.
Further, the fixed sleeve and the limiting clamping sleeve are integrally injection molded.
Further, the elastic limiting sleeve is a limiting clamping sleeve; the limiting clamping sleeve is connected with the fixing sleeve, and the other end of the positioning bolt is sleeved with the position corresponding to the first through hole, and is clamped on the upper end of the rear supporting rod.
Further, the limiting clamping sleeve is of a C-shaped structure.
Further, the elastic sheath is made of rubber materials.
Further, the front leg assembly includes a front strut and a front cross bar; the lower ends of the two front support rods are connected through the front cross rod; the two front support rods are respectively hinged with two sides of the front end of the cushion structure; the upper end of the front supporting rod is hinged with the armrest; the castor is arranged on the bottom end of the front supporting rod.
Further, a foot rest is arranged in front of the lower end of the front foot support assembly.
Further, the cushion structure comprises a cushion plate and a bracket; the backing plate is arranged on the bracket; the front support leg assemblies are respectively hinged with two sides of the front end of the bracket; the rear support leg assemblies are respectively hinged with two sides of the rear end of the bracket; a positioning opening is formed in the middle of the base plate; the base plate is provided with a toilet bowl which is embedded and hung on the positioning opening in a matched manner; the toilet bowl is covered with a toilet cover in a matched manner.
Further, the backrest structure comprises side vertical rods, upper cross rods, lower cross rods and a backrest plate; the upper cross rod and the lower cross rod are respectively connected between the upper ends and the lower ends of the two side vertical rods; the backrest plate is arranged on the upper cross rod; the rear end of the cushion structure is hinged with the lower cross rod; the rear ends of the two armrests are respectively hinged with the two side vertical rods; the upper end of the side vertical rod is connected with a pushing handle through the quick locking structure.
Compared with the prior art, the utility model has the following advantages:
according to the utility model, one end of the positioning bolt can penetrate through the outer side of the upper end of the rear support leg assembly to be connected with the inner support rod so as to fix the inner support rod on the support leg assembly, and then the elastic limiting sleeve is connected to the other end of the positioning bolt sleeved with the positioning bolt so as to quickly realize the quick unfolding and folding of the wheelchair.
Drawings
The present application is described in further detail below with reference to the drawings and detailed description.
Fig. 1 is a schematic perspective view of a rapid unfolding and folding wheelchair according to the present utility model.
Fig. 2 is a partial perspective view schematically showing the rapid unfolding and folding wheelchair of the present utility model.
The drawings include:
cushion structure 1, pad 11, bracket 12, back structure 2, side rail 21, upper rail 22, lower rail 23, back plate 24, push handle 25, front leg assembly 3, front strut 31, front rail 32, rear leg assembly 4, rear strut 41, rear rail 42, armrest 5, caster 6, quick lock structure 7, inner strut 71, positioning latch 72, elastic stop 73, fixed sleeve 731, stop clip 732, latch stop recess 7321, foot rest 8, toilet bowl 9, toilet lid 10.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
As shown in fig. 1 to 2, a rapid unfolding and folding wheelchair comprises a cushion structure 1, a backrest structure 2, a front leg assembly 3, a rear leg assembly 4, armrests 5 and casters 6; the rear end of the cushion structure 1 is hinged with the lower end of the backrest structure 2, and the front leg assemblies 3 are respectively hinged with two sides of the front end of the cushion structure 1; the rear leg assemblies 4 are respectively hinged with two sides of the rear end of the cushion structure 1; the upper ends of the front leg assemblies 3 are respectively hinged with the front ends of the two armrests 5; the two armrests 5 are respectively positioned at two sides of the seat cushion; the rear ends of the two armrests 5 are respectively hinged with the two sides of the backrest structure 2; the lower ends of the front support leg assembly 3 and the rear support leg assembly 4 are respectively provided with the casters 6; the upper end of the rear leg assembly 4 is connected with each armrest 5 through a quick locking structure 7; the quick locking structure 7 comprises an inner supporting rod 71, a positioning bolt 72 and an elastic limiting sleeve 73; the upper end of the rear support leg assembly 4 is provided with a rod cavity; the inner support rod 71 is matched and sleeved in the rod cavity; one end of the positioning pin 72 may be connected to the inner leg 71 through the outside of the upper end of the rear leg assembly 4 to fix the inner leg 71 to the leg assembly; the other end of the positioning pin 72 is exposed outside the upper end of the rear leg assembly 4; the elastic limiting sleeve 73 is connected to the rear leg assembly 4 and wraps the other end of the positioning bolt 72.
The quick unfolding and folding wheelchair can penetrate through the outer side of the upper end of the rear support leg assembly 4 to be connected with the inner support rod 71 by means of one end of the positioning bolt 72 so as to fix the inner support rod 71 on the support leg assembly, and then the other end of the positioning bolt 72 is sleeved by means of the elastic limiting sleeve 73 so as to quickly realize the quick unfolding and folding of the wheelchair by means of the positioning bolt 72 and the elastic limiting sleeve 73, so that the quick unfolding and folding wheelchair is simpler in operation, simpler in structure, convenient to assemble and disassemble and difficult to damage, longer in service life, and meanwhile, the elastic limiting sleeve 73 plays a role in positioning the positioning bolt 72, so that the positioning bolt 72 is prevented from sliding out, the skin of a person is prevented from being stabbed by the positioning bolt 72, the user is prevented from being painful or injured, the positioning bolt 72 is prevented from being excessively exposed, and a good attractive effect is achieved.
Specifically, the rear leg assembly 4 includes a rear strut 41 and a rear cross bar 42; the lower ends of the two rear struts 41 are connected through the rear cross bar 42; the two rear struts 41 are respectively hinged with two sides of the rear end of the cushion structure 1; the castor 6 is arranged on the bottom end of the rear strut 41; the upper end of the rear strut 41 is connected with the armrest 5 through a quick locking structure 7; the outer side of the upper end of the rear supporting rod 41 is provided with a first through hole; a second through hole which can be aligned with the first through hole is formed in the length direction of the inner strut 71; when the inner support rod 71 is matched and sleeved in the rod cavity and the first through hole is aligned with the second through hole, one end of the positioning bolt 72 is inserted into the first through hole and the second through hole so as to fix the inner support rod 71 on the rear support rod 41, so that the rapid unfolding and folding of the wheelchair can be realized, the operation is simpler, the structure is simple, the disassembly and assembly are convenient, the damage is not easy, the service life is long, meanwhile, the elastic limiting sleeve 73 plays a role in positioning the positioning bolt 72, the positioning bolt 72 is prevented from sliding out, the positioning bolt 72 is prevented from stabbing the skin of a person, the user is prevented from being painful or injured, the positioning bolt 72 is prevented from being excessively exposed, and the good attractive effect is achieved.
Preferably, the elastic limiting sleeve 73 comprises a fixing sleeve 731 and a limiting sleeve 732; the fixing sleeve 731 is matched and sleeved on the upper end of the rear supporting rod 41; the limiting sleeve 732 is connected with the fixing sleeve 731, and the other end of the positioning pin 72 is sleeved with the position corresponding to the first through hole, and is sleeved on the upper end of the rear supporting rod 41. Utilize fixed cover 731 cooperation to fix on the upper end of back branch 41, the other end of locating bolt 72 is lived to the adoption spacing cutting ferrule 732 wrap to the cutting ferrule is on the upper end of back branch 41, utilizes spacing cutting ferrule 732 to play location or spacing effect to locating bolt 72, prevents that locating bolt 72 roll-off, can realize this quick expansion and folding wheelchair expansion and folding fast, and the operation is simpler, easy dismounting, and not fragile, and life is longer, simultaneously, the effect of elastic limiting sleeve 73 to locating bolt 72 location can also be avoided locating bolt 72 too to expose, plays good pleasing to the eye effect. Of course, in another specific embodiment, the elastic limiting sleeve 73 is directly a limiting sleeve 732; the limiting sleeve 732 is connected with the fixing sleeve 731, and the other end of the positioning pin 72 is sleeved with the position corresponding to the first through hole, and is sleeved on the upper end of the rear supporting rod 41. Through regard as the elasticity stop collar 73 with spacing cutting ferrule 732 is direct, the structure is simpler, can accelerate to play location or spacing effect to location bolt 72, prevents that location bolt 72 roll-off, can realize this quick expansion and folding wheelchair expansion and folding fast, and the dismouting is more convenient.
In order to better position or limit the positioning pin 72, a pin limiting recess 7321 for positioning the other end of the positioning pin 72 is provided on the inner side of the limiting sleeve 732. The limiting clamping sleeve 732 is of a C-shaped structure, and is simpler in structure and can be quickly clamped on the positioning bolt 72.
In order to accelerate the production of the elastic sheath and improve the production efficiency, the fixing sleeve 731 and the limiting sleeve 732 are integrally injection molded. The elastic sheath is made of rubber material, PVC material, PE material or PP material. Preferably, the rubber material is an elastic sheath with good elasticity, so that the positioning bolt 72 is conveniently sleeved and detached, and the positioning bolt 72 is well positioned or limited.
In this embodiment, the front leg assembly 3 includes a front strut 31 and a front cross bar 32; the lower ends of the two front struts 31 are connected through the front cross bar 32; the two front struts 31 are respectively hinged with two sides of the front end of the cushion structure 1; the upper end of the front strut 31 is hinged with the armrest 5; the castor 6 is arranged at the bottom end of the front strut 31, and can be combined with the cushion structure 1, the backrest structure 2, the rear leg assemblies 4 and the armrests 5, so that the wheelchair can be unfolded and folded quickly, and the convenience is good.
In order to support the feet of the user conveniently, a foot rest 8 is arranged in front of the lower end of the front foot support assembly 3.
In the present embodiment, the seat cushion structure 1 includes a cushion plate 11 and a bracket 12; the backing plate 11 is arranged on the bracket 12; the front leg assemblies 3 are respectively hinged with two sides of the front end of the bracket 12; the rear leg assemblies 4 are respectively hinged with two sides of the rear end of the bracket 12; a positioning opening is formed in the middle of the base plate 11; the base plate 11 is provided with a toilet bowl 9 which is embedded and hung on the positioning opening in a matched manner; the toilet bowl 9 is cooperatively covered with a toilet cover 10. By arranging the positioning opening on the base plate 11 for placing the toilet bowl 9, the toilet bowl is convenient for the patient to flexibly urinate, can be covered by the toilet cover 10, and is convenient for the patient to sit. The backing plate 11 is made of sponge and PP material or PU material, and comfort level is good.
In this embodiment, the backrest structure 2 includes a side rail 21, an upper rail 22, a lower rail 23, and a backrest plate 24; the upper cross bar 22 and the lower cross bar 23 are respectively connected between the upper ends and the lower ends of the two side vertical bars 21; the back rest 24 is arranged on the upper cross bar 22; the rear end of the cushion structure 1 is hinged with the lower cross bar 23; the rear ends of the two armrests 5 are respectively hinged with the two side vertical rods 21, which is helpful for realizing the rapid unfolding and folding of the rapid unfolding and folding wheelchair. The upper end of the side vertical rod 21 is connected with a pushing handle 25 through the quick locking structure 7. The push handle 25 is connected with the upper end of the side vertical rod 21 by adopting the quick locking structure 7, the operation is simpler, the efficiency of disassembling and assembling the push handle 25 can be improved,
the working process of the utility model is as follows:
when the wheelchair is unfolded, the cushion structure 1 is horizontally placed, the two front struts 31 support the cushion plate 11, the armrest 5 is horizontally placed, then when the inner struts 71 are matched and sleeved in the rod cavity and the first through holes are opposite to the second through holes, one end of the positioning bolt 72 is inserted into the first through holes and the second through holes to fix the inner struts 71 on the rear struts 41, then the other end of the positioning bolt 72 is sleeved by the limiting clamping sleeve 732 and sleeved on the upper end of the rear struts 41, the positioning bolt 72 is positioned or limited by the limiting clamping sleeve 732, the positioning bolt 72 is prevented from sliding out, and at the moment, the wheelchair is in a locking state, the armrest 5 is connected with the rear struts 41, and the unfolding state of the wheelchair is completed.
When the wheelchair is folded, the spacing cutting sleeve 732 is broken off, the other end of the positioning bolt 72 is exposed, the positioning bolt 72 is pulled out, the inner supporting rod 71 is separated from the rod cavity, at the moment, the quick locking structure 7 is in an unlocking state, the armrest 5 is separated from the rear supporting rod 41, then the rear supporting rod 41 can swing and fold to be close to the backrest structure 2, the front supporting rod 31, the cushion structure 1 and the armrest 5 can also be folded to be close to the backrest structure 2, the wheelchair is in a gathering state, and the folding state of the wheelchair is completed.
In summary, the embodiment of the utility model provides a quick unfolding and folding wheelchair, wherein one end of a positioning bolt 72 can penetrate through the outer side of the upper end of a rear support leg assembly 4 to be connected with an inner support rod 71 so as to fix the inner support rod 71 on the support leg assembly, and then an elastic limiting sleeve 73 is connected to the other end of a covered positioning bolt 72, so that the quick unfolding and folding wheelchair is quickly realized by the positioning bolt 72 and the elastic limiting sleeve 73, the operation is simpler, the structure is simple, the disassembly and assembly are convenient, the quick unfolding and folding wheelchair is not easy to damage, the service life is long, and meanwhile, the elastic limiting sleeve 73 plays a role in positioning the positioning bolt 72, so that the positioning bolt 72 is prevented from sliding out to prevent the skin of a person from being stabbed or hurt by the positioning bolt 72, and the user can be prevented from being excessively exposed, and a good attractive effect is achieved.
The foregoing is merely a preferred embodiment of the present application, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present application, and these modifications and substitutions should also be considered as being within the scope of the present application.
Claims (9)
1. A wheelchair capable of being unfolded and folded rapidly comprises a cushion structure, a backrest structure, a front support leg assembly, a rear support leg assembly, armrests and casters; the seat cushion is characterized in that the rear end of the seat cushion structure is hinged with the lower end of the backrest structure, and the front leg assemblies are respectively hinged with two sides of the front end of the seat cushion structure; the rear support leg assemblies are respectively hinged with two sides of the rear end of the cushion structure; the upper ends of the front leg assemblies are respectively hinged with the front ends of the two armrests; the two armrests are respectively positioned at two sides of the cushion; the rear ends of the two armrests are respectively hinged with two sides of the backrest structure; the lower ends of the front support leg assembly and the rear support leg assembly are respectively provided with the casters;
the upper end of the rear support leg assembly is connected with each handrail through a quick locking structure; the quick locking structure comprises an inner support rod, a positioning bolt and an elastic limiting sleeve; the upper end of the rear support leg assembly is provided with a rod cavity; the inner support rod is sleeved in the rod cavity in a matched manner; one end of the positioning bolt can penetrate through the outer side of the upper end of the rear support leg assembly to be connected with the inner support rod so as to fix the inner support rod on the support leg assembly; the other end of the positioning bolt is exposed out of the upper end of the rear support leg assembly; the elastic limiting sleeve is connected to the rear support leg assembly and wraps the other end of the positioning bolt.
2. The quick deployment and folding wheelchair of claim 1 wherein said rear leg assembly comprises a rear strut and a rear cross bar; the lower ends of the two rear supporting rods are connected through the rear cross rod; the two rear supporting rods are respectively hinged with two sides of the rear end of the cushion structure; the castor is arranged at the bottom end of the rear supporting rod;
the upper end of the rear supporting rod is connected with the handrail through a quick locking structure; the outer side of the upper end of the rear supporting rod is provided with a first through hole; a second through hole which can be aligned with the first through hole is formed in the length direction of the inner support rod; when the inner support rod is sleeved in the rod cavity in a matched mode and the first through hole is aligned with the second through hole, one end of the positioning bolt is inserted into the first through hole and the second through hole in a penetrating mode to fix the inner support rod on the rear support rod.
3. The quick deployment and folding wheelchair of claim 2 wherein the elastic stop collar comprises a fixed collar and a stop collar; the fixed sleeve is matched and sleeved on the upper end of the rear supporting rod; the limiting clamping sleeve is connected with the fixing sleeve, and the other end of the positioning bolt is sleeved with the position corresponding to the first through hole, and is clamped on the upper end of the rear supporting rod.
4. A quick deployment and folding wheelchair according to claim 3, wherein a latch stop recess for locating the other end of the locating latch is provided on the inside of the stop collar.
5. The quick deployment and folding wheelchair of claim 3 wherein the retaining sleeve and limiting ferrule are integrally injection molded.
6. The quick deployment and folding wheelchair of claim 3 wherein the limit clamping sleeve is C-shaped in configuration.
7. The quick deployment and folding wheelchair of claim 1 wherein said front leg assembly comprises a front strut and a front cross bar; the lower ends of the two front support rods are connected through the front cross rod; the two front support rods are respectively hinged with two sides of the front end of the cushion structure; the upper end of the front supporting rod is hinged with the armrest; the castor is arranged at the bottom end of the front supporting rod; the front of the lower end of the front support leg assembly is provided with a foot support.
8. The rapid unfolding and folding wheelchair of claim 1, wherein the seat cushion structure comprises a cushion plate and a bracket; the backing plate is arranged on the bracket; the front support leg assemblies are respectively hinged with two sides of the front end of the bracket; the rear support leg assemblies are respectively hinged with two sides of the rear end of the bracket; a positioning opening is formed in the middle of the base plate; the base plate is provided with a toilet bowl which is embedded and hung on the positioning opening in a matched manner; the toilet bowl is covered with a toilet cover in a matched manner.
9. The rapid unfolding and folding wheelchair of claim 1, wherein the backrest structure comprises side rails, upper rails, lower rails and a backboard; the upper cross rod and the lower cross rod are respectively connected between the upper ends and the lower ends of the two side vertical rods; the backrest plate is arranged on the upper cross rod; the rear end of the cushion structure is hinged with the lower cross rod; the rear ends of the two armrests are respectively hinged with the two side vertical rods; the upper end of the side vertical rod is connected with a pushing handle through the quick locking structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220818346.2U CN219109993U (en) | 2022-04-11 | 2022-04-11 | Wheelchair capable of being unfolded and folded rapidly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220818346.2U CN219109993U (en) | 2022-04-11 | 2022-04-11 | Wheelchair capable of being unfolded and folded rapidly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219109993U true CN219109993U (en) | 2023-06-02 |
Family
ID=86523611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220818346.2U Active CN219109993U (en) | 2022-04-11 | 2022-04-11 | Wheelchair capable of being unfolded and folded rapidly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219109993U (en) |
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2022
- 2022-04-11 CN CN202220818346.2U patent/CN219109993U/en active Active
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