CN111419648A - Walking aid with multiple functions - Google Patents
Walking aid with multiple functions Download PDFInfo
- Publication number
- CN111419648A CN111419648A CN202010252934.XA CN202010252934A CN111419648A CN 111419648 A CN111419648 A CN 111419648A CN 202010252934 A CN202010252934 A CN 202010252934A CN 111419648 A CN111419648 A CN 111419648A
- Authority
- CN
- China
- Prior art keywords
- supporting
- supporting rod
- support
- rod
- seat plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/02—Crutches
Abstract
The invention discloses a multifunctional walking aid, wherein a support frame comprises an upper support part, a rear support part and a front support part; the upper supporting part comprises a hollow round tubular upper supporting tube; the rear supporting part comprises a cylindrical rear upper supporting rod; a rear vertical supporting rod is vertically formed at the lower end of the rear part of the rear upper supporting rod; a circular rear supporting ring is formed at the lower part of the rear vertical supporting rod; the front support part comprises a cylindrical front upper support rod; the front part of the front upper supporting rod is rotatably provided with a front vertical supporting rod; the lower part of the front vertical supporting rod is formed with a circular front lower supporting ring, and the upper part of the front vertical supporting rod is formed with a circular front upper supporting ring; the front end of the rear upper supporting rod is inserted and detachably fixed at the rear end of the upper supporting pipe; the rear end of the front upper supporting rod is inserted and fixed at the front end of the upper supporting pipe in a detachable way.
Description
Technical Field
The invention relates to the technical field of walking aids, in particular to a walking aid with multiple functions.
Background
The existing walking aid has single function, can only be used for assisting walking, and has narrow application range and high idle rate.
Disclosure of Invention
The invention aims to solve the technical problem of single function of a walking aid and provides the walking aid with multiple functions.
The technical scheme for solving the technical problems is as follows: a multifunctional walking aid comprises a pair of support frames which are arranged symmetrically left and right; the support frame comprises an upper support part, a rear support part and a front support part; the upper supporting part comprises a hollow round tubular upper supporting tube; the rear supporting part comprises a cylindrical rear upper supporting rod; a rear vertical supporting rod is vertically formed at the lower end of the rear part of the rear upper supporting rod; a circular rear supporting ring is formed at the lower part of the rear vertical supporting rod; the front support part comprises a cylindrical front upper support rod; the front part of the front upper supporting rod is rotatably provided with a front vertical supporting rod; the lower part of the front vertical supporting rod is formed with a circular front lower supporting ring, and the upper part of the front vertical supporting rod is formed with a circular front upper supporting ring; the front end of the rear upper supporting rod is inserted and detachably fixed at the rear end of the upper supporting pipe; the rear end of the front upper supporting rod is inserted and detachably fixed at the front end of the upper supporting pipe; a left connecting rod and a right connecting rod are detachably arranged between the pair of front upper supporting rings; a seat plate supporting plate is arranged between the rear supporting ring and the front lower supporting ring on the left side; a seat plate mounting unit is arranged between the rear supporting ring and the front lower supporting ring on the right side; the seat board placing unit comprises a seat board which can be movably arranged.
Preferably, the rear vertical support rod comprises a cylindrical rear inner support rod and a cylindrical rear outer support cylinder; external threads are formed on the cylindrical surface of the rear inner support rod; an internal thread matched with the external thread of the rear inner supporting rod is formed on the inner cylindrical surface of the rear outer supporting cylinder; the rear outer support cylinder is screwed on the rear inner support rod; the rear support ring is formed at the lower part of the rear outer support cylinder;
the front vertical supporting rod comprises a cylindrical front inner supporting rod and a cylindrical front outer supporting cylinder; external threads are formed on the cylindrical surface of the front inner supporting rod; an internal thread matched with the external thread of the front inner supporting rod is formed on the inner cylindrical surface of the front outer supporting cylinder; the front outer supporting cylinder is screwed on the front inner supporting rod; the front lower supporting ring is formed at the lower part of the front outer supporting cylinder; the front upper support ring is formed on the upper part of the front outer support cylinder.
Preferably, the lower ends of the left part and the right part of the upper supporting pipe are respectively penetrated from bottom to top and are screwed with an upper limiting bolt; a rear upper limiting screw hole matched with the upper limiting bolt is formed at the lower end of the front part of the rear upper supporting rod; the lower end of the rear part of the front upper supporting rod is provided with a front upper limiting screw hole matched with the upper limiting bolt.
Preferably, a circular plate-shaped swing center block is formed at the upper end of the rear vertical support rod; a swing groove for rotating the swing central block is formed in the front part of the front upper support rod; the swing central block is rotatably arranged in the swing groove; the front end surface of the front upper supporting rod penetrates from front to back and is in threaded connection with a vertical angle limiting bolt; a vertical angle limiting threaded hole matched with the vertical angle limiting bolt is formed at the rear end of the side wall of the swinging groove; a vertical angle limiting through hole for a vertical angle limiting bolt to pass through is formed in the swing center block; the vertical angle limiting through hole is perpendicular to the vertical support rod.
Preferably, the left and right ends of the left and right connecting rods are formed with left and right T-shaped connecting blocks; the upper parts of the ends, close to the front upper supporting rings, of the pair of front upper supporting rings are respectively provided with a left connecting slot and a right connecting slot which are matched with the left connecting block and the right connecting block.
Preferably, the front end and the rear end of the seat support plate are respectively formed with a T-shaped seat support connecting block; the upper parts of the ends, close to the rear supporting ring and the front lower supporting ring, on the left side are respectively formed with a left connecting slot matched with the seat plate supporting connecting block; a seat plate placing groove for placing one end of the seat plate is formed on the upper end surface of the seat plate supporting plate; the seat board mounting unit also comprises a seat board mounting block; the seat plate mounting block comprises a cylindrical seat plate mounting column; the front end of the seat plate mounting column is formed with a front connecting plate; a T-shaped front connecting plug block is formed at the front end of the front connecting plate; a front connecting slot matched with the front connecting plug block is formed at the upper part of the rear end of the front lower supporting ring at the right side; the rear end of the seat plate mounting column is formed with a rear connecting plate; a T-shaped rear connecting insert block is formed at the rear end of the rear connecting plate; a rear connecting slot matched with the rear connecting plug block is formed at the upper part of the front end of the rear supporting ring on the right side; the lower part of the seat plate is formed with a long hole-shaped moving guide groove which is matched with the seat plate mounting column and penetrates forwards and backwards.
Preferably, the handrail is arranged in the middle of the outer surface of the upper supporting tube.
As the optimization of the technical scheme, the lower ends of the rear vertical supporting rod and the front vertical supporting rod are provided with anti-skidding blocks.
The invention has the beneficial effects that: the walking aid has a simple structure, the rear supporting part and the front supporting part can be detached to be used as a walking stick, and the seat plate can be unfolded to enable the walking aid to become a seat temporarily.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic structural view of the cross section A-A of FIG. 1 according to the present invention;
FIG. 3 is a schematic structural diagram of a cross section B-B in FIG. 1 according to the present invention.
In the figure, 10, the rear support part; 11. a rear inner support bar; 12. a rear upper support rod; 120. a rear upper limiting screw hole; 13. a rear outer support cylinder; 131. a rear support ring; 1310. a rear connection slot; 20. an upper support section; 21. an upper support tube; 22. an upper limit bolt; 23. a handrail; 30. a front support portion; 31. a front inner support bar; 311. a swing center block; 32. a front upper support bar; 320. a front upper limiting screw hole; 3200. a swing groove; 3201. a vertical angle limit threaded hole; 33. a vertical angle limit bolt; 34. a front outer support cylinder; 341. a front lower support ring; 3410. a front connection slot; 342. a front upper support ring; 40. a left and a right connecting rod; 41. a left connecting block and a right connecting block; 50. a seat plate mounting unit; 51. a seat plate mounting block; 511. a seat plate mounting column; 512. a rear connecting plate; 5121. the rear is connected with an inserting block; 513. a front connecting plate; 5131. the front is connected with the plug block; 52. a seat plate; 520. a moving guide groove; 60. a seat support plate; 600. a seat plate placing groove; 70. and (4) anti-skid blocks.
Detailed Description
As shown in figures 1-3, a multifunctional walking aid comprises a pair of support frames which are arranged symmetrically left and right; the support frame comprises an upper support part 20, a rear support part 10 and a front support part 30; the upper support portion 20 includes an upper support tube 21 having a hollow circular tube shape; the rear support portion 10 includes a cylindrical rear upper support rod 12; a rear vertical support rod is vertically formed at the lower end of the rear part of the rear upper support rod 12; the lower part of the rear vertical support rod is formed with a circular rear support ring 131; the front support 30 includes a cylindrical front upper support rod 32; the front part of the front upper support rod 32 is rotatably provided with a front vertical support rod; a circular front lower support ring 341 is formed at the lower part of the front vertical support rod, and a circular front upper support ring 342 is formed at the upper part of the front vertical support rod; the front end of the rear upper support rod 12 is inserted and detachably fixed at the rear end of the upper support tube 21; the rear end of the front upper support rod 32 is inserted and detachably fixed at the front end of the upper support tube 21; a left connecting rod 40 and a right connecting rod 40 are detachably arranged between the pair of front upper supporting rings 342; a seat plate support plate 60 is arranged between the rear support ring 131 and the front lower support ring 341 on the left side; a seat plate seating unit 50 is provided between the rear support ring 131 and the front lower support ring 341 on the right side; the seat installation unit 50 includes a movably disposed seat 52.
As shown in fig. 1 to 3, the rear vertical support bar includes a cylindrical rear inner support bar 11 and a cylindrical rear outer support tube 13; external threads are formed on the cylindrical surface of the rear inner support rod 11; an internal thread matched with the external thread of the rear inner supporting rod 11 is formed on the inner cylindrical surface of the rear outer supporting cylinder 13; the rear outer support cylinder 13 is screwed on the rear inner support rod 11; a rear support ring 131 is formed at the lower portion of the rear outer support tube 13;
as shown in fig. 1 to 3, the front vertical support bar includes a cylindrical front inner support bar 31 and a cylindrical front outer support tube 34; external threads are formed on the cylindrical surface of the front inner support rod 31; an internal thread matched with the external thread of the front inner supporting rod 31 is formed on the inner cylindrical surface of the front outer supporting cylinder 34; the front outer support cylinder 34 is screwed on the front inner support rod 31; a front lower support ring 341 is formed at the lower portion of the front outer support cylinder 34; a front upper support ring 342 is formed on the upper portion of the front outer support cylinder 34.
As shown in fig. 2, the lower ends of the left and right parts of the upper support tube 21 are respectively penetrated from bottom to top and are screwed with an upper limit bolt 22; a rear upper limiting screw hole 120 matched with the upper limiting bolt 22 is formed at the lower end of the front part of the rear upper supporting rod 12; the rear lower end of the front upper support rod 32 is formed with a front upper limit screw hole 320 to be engaged with the upper limit bolt 22.
As shown in fig. 2, a swing center block 311 of a circular plate shape is formed at the upper end of the rear vertical support bar; a swing groove 3200 for rotating the swing center block 311 is formed at the front portion of the front upper support bar 32; the swing center block 311 is rotatably disposed in the swing groove 3200; the front end surface of the front upper supporting rod 32 is penetrated from front to back and is in threaded connection with a vertical angle limiting bolt 33; a vertical angle limiting threaded hole 3201 matched with the vertical angle limiting bolt 33 is formed at the rear end of the side wall of the swing groove 3200; a vertical angle limiting through hole 3110 for the vertical angle limiting bolt 33 to pass through is formed on the swing center block 311; the vertical angle limiting through hole 3110 is arranged perpendicular to the vertical support rod.
As shown in fig. 1 and 3, left and right connecting blocks 41 in a T shape are formed at left and right ends of the left and right connecting rods 40; the upper portions of the front upper support rings 342 near one end are respectively formed with left and right connection slots for the left and right connection blocks 41 to be engaged with.
As shown in fig. 1 to 3, T-shaped seat supporting connection blocks are formed at the front end and the rear end of the seat supporting plate 60, respectively; the upper parts of the ends, close to the rear support ring 131 and the front lower support ring 341, on the left side are respectively formed with a left connecting slot matched with the seat plate supporting connecting block; a seat plate seating groove 600 into which one end of the seat plate 52 is seated is formed on the upper end surface of the seat plate supporting plate 60; the seat mounting unit 50 further includes a seat mounting block 51; the seat plate seating block 51 includes a cylindrical seat plate seating column 511; a front connecting plate 513 is formed at the front end of the seat plate mounting column 511; a T-shaped front connecting plug block 5131 is formed at the front end of the front connecting plate 513; a front connecting slot 3410 matched with the front connecting plug 5131 is formed at the upper part of the rear end of the right front lower supporting ring 341; a rear connecting plate 512 is formed at the rear end of the seat plate mounting column 511; a T-shaped rear connecting plug block 5121 is formed at the rear end of the rear connecting plate 512; a rear connection slot 1310 matched with the rear connection plug 5121 is formed at the upper part of the front end of the right rear support ring 131; the seat plate 52 has a long hole-shaped moving guide 520 formed at the lower portion thereof and inserted in the front and rear direction to be engaged with the seat plate seating column 511.
As shown in fig. 1 to 3, a handrail 23 is provided in the middle of the outer surface of the upper support pipe 21.
As shown in fig. 1 to 3, the lower ends of the rear vertical support bar and the front vertical support bar are provided with anti-slip blocks 70.
The working principle of the walking aid with multiple functions;
when the walking aid is used as a walking aid, as shown in fig. 1 to 3, a user can walk slowly with the aid of the walking aid to perform rehabilitation training, in the process, if the user is tired in use, the seat plate 52 can be moved upwards and then turned leftwards, so that the left end of the seat plate 52 is positioned in the seat plate accommodating groove 600 of the seat plate supporting plate 60, and the user can sit on the seat plate 52 to take a rest;
when the crutch needs to be used, the left and right connecting rods 40 are firstly taken down, then the seat supporting plate 60 and the seat placing unit 50 are taken down, only one pair of supporting frames are left, then the rear supporting part 10 and the front supporting part 30 are taken down from the upper supporting part 20, then the front vertical supporting rod is perpendicular to the front upper supporting rod 32 after rotating and moving for an angle, then the front vertical supporting rod is screwed to rotate inwards by using the screwing vertical angle limiting bolt 33 until the front vertical supporting rod is perpendicular to the front upper supporting rod 32, so that the pair of rear supporting part 10 and the pair of front supporting part 30 can be used as the crutch, and the application range of the walking aid is enlarged.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description herein, since various changes and modifications can be made in the details of the embodiment and the application range according to the spirit of the present invention.
Claims (8)
1. A walking aid with multiple functions is characterized in that: comprises a pair of support frames which are arranged symmetrically left and right; the support frame comprises an upper support part (20), a rear support part (10) and a front support part (30); the upper support part (20) comprises a hollow round tubular upper support tube (21); the rear support part (10) comprises a cylindrical rear upper support rod (12); a rear vertical supporting rod is vertically formed at the lower end of the rear part of the rear upper supporting rod (12); a circular rear supporting ring (131) is formed at the lower part of the rear vertical supporting rod; the front support part (30) comprises a cylindrical front upper support rod (32); the front part of the front upper supporting rod (32) is rotatably provided with a front vertical supporting rod; a circular front lower supporting ring (341) is formed at the lower part of the front vertical supporting rod, and a circular front upper supporting ring (342) is formed at the upper part of the front vertical supporting rod; the front end of the rear upper supporting rod (12) is inserted and fixed at the rear end of the upper supporting pipe (21) in a detachable way; the rear end of the front upper supporting rod (32) is inserted and fixed at the front end of the upper supporting pipe (21) in a detachable way; a left connecting rod and a right connecting rod (40) are detachably arranged between the pair of front upper supporting rings (342); a seat plate supporting plate (60) is arranged between the rear supporting ring (131) and the front lower supporting ring (341) on the left side; a seat plate mounting unit (50) is arranged between the rear support ring (131) and the front lower support ring (341) on the right side; the seat plate placing unit (50) comprises a movably arranged seat plate (52).
2. A multi-functional walker according to claim 1 wherein: the rear vertical supporting rod comprises a cylindrical rear inner supporting rod (11) and a cylindrical rear outer supporting cylinder (13); external threads are formed on the cylindrical surface of the rear inner support rod (11); an internal thread matched with the external thread of the rear inner supporting rod (11) is formed on the inner cylindrical surface of the rear outer supporting cylinder (13); the rear outer support cylinder (13) is screwed on the rear inner support rod (11); a rear support ring (131) is formed at the lower part of the rear outer support cylinder (13);
the front vertical supporting rod comprises a cylindrical front inner supporting rod (31) and a cylindrical front outer supporting cylinder (34); external threads are formed on the cylindrical surface of the front inner supporting rod (31); an internal thread matched with the external thread of the front inner supporting rod (31) is formed on the inner cylindrical surface of the front outer supporting cylinder (34); the front outer supporting cylinder (34) is screwed on the front inner supporting rod (31); the front lower support ring (341) is formed at the lower part of the front outer support cylinder (34); a front upper support ring (342) is formed on an upper portion of the front outer support cylinder (34).
3. A multi-functional walker according to claim 1 wherein: the lower ends of the left part and the right part of the upper supporting pipe (21) are respectively penetrated from bottom to top and are screwed with an upper limiting bolt (22); a rear upper limiting screw hole (120) matched with the upper limiting bolt (22) is formed at the lower end of the front part of the rear upper supporting rod (12); the lower end of the rear part of the front upper supporting rod (32) is formed with a front upper limiting screw hole (320) matched with the upper limiting bolt (22).
4. A multi-functional walker according to claim 1 wherein: a circular plate-shaped swing center block (311) is formed at the upper end of the rear vertical supporting rod; a swing groove (3200) for rotating the swing center block (311) is formed at the front part of the front upper support rod (32); the swing center block (311) is rotatably arranged in the swing groove (3200); the front end surface of the front upper supporting rod (32) penetrates from front to back and is in threaded connection with a vertical angle limiting bolt (33); a vertical angle limiting threaded hole (3201) matched with the vertical angle limiting bolt (33) is formed at the rear end of the side wall of the swing groove (3200); a vertical angle limiting through hole (3110) for the vertical angle limiting bolt (33) to pass through is formed in the swing center block (311); the vertical angle limiting through hole (3110) is perpendicular to the vertical support rod.
5. A multi-functional walker according to claim 1 wherein: the left end and the right end of the left connecting rod (40) are provided with a left connecting block (41) and a right connecting block (41) in a T shape; the upper parts of the close ends of the front upper supporting rings (342) are respectively provided with a left connecting slot and a right connecting slot which are matched with the left connecting block and the right connecting block (41).
6. A multi-functional walker according to claim 1 wherein: the front end and the rear end of the seat supporting plate (60) are respectively formed with a T-shaped seat supporting connecting block; the upper parts of the ends, close to the rear support ring (131) and the front lower support ring (341) on the left side, of the rear support ring and the front lower support ring are respectively formed with a left connecting slot matched with the seat plate supporting connecting block; a seat plate placing groove (600) for placing one end of the seat plate (52) is formed on the upper end surface of the seat plate supporting plate (60); the seat plate mounting unit (50) further comprises a seat plate mounting block (51); the seat plate mounting block (51) comprises a cylindrical seat plate mounting column (511); a front connecting plate (513) is formed at the front end of the seat plate mounting column (511); a T-shaped front connecting plug block (5131) is formed at the front end of the front connecting plate (513); a front connecting slot (3410) matched with the front connecting plug block (5131) is formed at the upper part of the rear end of the right front lower support ring (341); a rear connecting plate (512) is formed at the rear end of the seat plate mounting column (511); a T-shaped rear connecting plug block (5121) is formed at the rear end of the rear connecting plate (512); a rear connecting slot (1310) matched with the rear connecting plug block (5121) is formed at the upper part of the front end of the rear supporting ring (131) at the right side; the lower part of the seat plate (52) is formed with a moving guide groove (520) which is matched with the seat plate mounting column (511) and penetrates through the seat plate mounting column in a front-back manner.
7. A multi-functional walker according to claim 1 wherein: the middle part of the outer surface of the upper supporting tube (21) is provided with a handrail (23).
8. A multi-functional walker according to claim 1 wherein: the lower ends of the rear vertical supporting rod and the front vertical supporting rod are provided with anti-skidding blocks (70).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010252934.XA CN111419648A (en) | 2020-04-02 | 2020-04-02 | Walking aid with multiple functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010252934.XA CN111419648A (en) | 2020-04-02 | 2020-04-02 | Walking aid with multiple functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111419648A true CN111419648A (en) | 2020-07-17 |
Family
ID=71550845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010252934.XA Withdrawn CN111419648A (en) | 2020-04-02 | 2020-04-02 | Walking aid with multiple functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111419648A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990003773A1 (en) * | 1988-10-11 | 1990-04-19 | Guardian Products, Inc. | Walker with removable seat |
| CN208301852U (en) * | 2017-07-28 | 2019-01-01 | 项琳 | A kind of folding utility walk helper |
| US20190099318A1 (en) * | 2009-11-18 | 2019-04-04 | Katherine Haik | Walker device for gait training |
| CN208726207U (en) * | 2017-07-18 | 2019-04-12 | 北京大学深圳医院 | Multifunction walking-aid device |
| CN209751566U (en) * | 2018-11-14 | 2019-12-10 | 浙江医众普惠生物科技有限公司 | Manifold medical treatment of function helps capable ware |
| CN110882136A (en) * | 2019-12-06 | 2020-03-17 | 武汉理工大学 | Multifunctional walking aid device for old people |
| CN210185999U (en) * | 2019-04-25 | 2020-03-27 | 厦门基信医疗技术有限公司 | Walking aid |
-
2020
- 2020-04-02 CN CN202010252934.XA patent/CN111419648A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990003773A1 (en) * | 1988-10-11 | 1990-04-19 | Guardian Products, Inc. | Walker with removable seat |
| US20190099318A1 (en) * | 2009-11-18 | 2019-04-04 | Katherine Haik | Walker device for gait training |
| CN208726207U (en) * | 2017-07-18 | 2019-04-12 | 北京大学深圳医院 | Multifunction walking-aid device |
| CN208301852U (en) * | 2017-07-28 | 2019-01-01 | 项琳 | A kind of folding utility walk helper |
| CN209751566U (en) * | 2018-11-14 | 2019-12-10 | 浙江医众普惠生物科技有限公司 | Manifold medical treatment of function helps capable ware |
| CN210185999U (en) * | 2019-04-25 | 2020-03-27 | 厦门基信医疗技术有限公司 | Walking aid |
| CN110882136A (en) * | 2019-12-06 | 2020-03-17 | 武汉理工大学 | Multifunctional walking aid device for old people |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200717 |