CN110236892A - Crutch support leg and crutch - Google Patents
Crutch support leg and crutch Download PDFInfo
- Publication number
- CN110236892A CN110236892A CN201910663624.4A CN201910663624A CN110236892A CN 110236892 A CN110236892 A CN 110236892A CN 201910663624 A CN201910663624 A CN 201910663624A CN 110236892 A CN110236892 A CN 110236892A
- Authority
- CN
- China
- Prior art keywords
- crutch
- connector
- card slot
- support leg
- supporting parts
- 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.)
- Granted
Links
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003381 stabilizer Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 2
- 241001166076 Diapheromera femorata Species 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- A61H2003/0205—Crutches with no pivoting movement during use, e.g. tripods
-
- 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
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/01—Constructive details
- A61H2201/0119—Support for the device
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention mainly relates to crutch, more particularly to crutch support leg and the crutch for being provided with the support leg, by being provided with mounting hole on pedestal, and inner wall of the hole installing is equipped with guide groove and card slot, connecting rod with clamp is plugged in mounting hole, clamp glides along guide groove, by the supporting parts in mounting hole by its support, connecting rod can generate inclination angle with respect to pedestal at this time, when the clamp in connecting rod is rotated to card slot, supporting parts limit clamp with card slot collective effect, connecting rod is fixedly connected with pedestal at this time, for fixed compared to the single crutch bar of tradition and support leg, both the fixation between support leg and crutch bar can have been kept, it can make to generate inclination angle between support leg and crutch bar again, quadrangle can land in use process, stability is higher, in addition, the inclination angle that crutch and support frame generate in use can To meet the inclination between human body and crutch, the case where realization for a long time using not will cause tired and DOMS.
Description
[technical field]
The invention mainly relates to crutch, and in particular to crutch support leg and the crutch for being provided with the support leg.
[background technique]
More stabilizer blade crutch when in use, need more stabilizer blades while landing to provide stable support force while increase friction
It avoids slipping.But in walking use process, crutch can substantially generate the inclination of certain angle with human body, because not generating
Inclination is ached or too tired using will lead to human arm for a long time.Once being fixed between crutch hand-held part and crutch foot
Inclination is not generated, at least one stabilizer blade is will lead to and does not land in the process of walking, to make that shakiness is supported to cause the phenomenon that slips.Cause
This, tilt adjustable section becomes as a kind of necessity between crutch hand-held part and stabilizer blade.
But during standing up, the more stabilizer blades of crutch was not only needed while having landed but also needing to guarantee between hand-held part and stabilizer blade
Inclination is not generated, to give more firm support force, is at this moment fixed hand-held part and is not produced with stabilizer blade, guarantee hand-held part and stabilizer blade
Raw tilt angle becomes a kind of necessary function again, to be conflicted with walking using generation.
According to the above problem, provide a kind of tilt angle that can adjust between hand-held part and stabilizer blade if necessary, it is non-must
The crutch of tilt angle when wanting between fixed hand-held part and stabilizer blade becomes a kind of demand.
[summary of the invention]
It can not only fix but also can incline with respect to pedestal generation with respect to pedestal the purpose of the present invention is to provide a kind of connecting rod
The crutch support leg at angle.
To achieve the above object, crutch support leg of the invention includes pedestal and connector, is provided on the pedestal
Mounting hole, the mounting hole internal diameter is greater than connector outer diameter and connector is plugged in mounting hole, and the pedestal is provided with
Supporting parts, supporting parts are arranged in mounting hole bottom, and connector is by support on supporting parts；
The vertical guide groove equipped with indent in the inner wall of the hole installing, guide groove bottom end is along inner wall of the hole installing is clockwise or the inverse time
Needle direction extends to form card slot, and connector periphery is equipped with the clamp of evagination, and the height of clamp and the height of card slot are equal, clamp
Width is less than or equal to the width of guide groove, and when connector is placed in mounting hole, clamp is selected one and is placed in guide groove or card slot.
Further, the guide groove is provided with 3-5, and guide groove bottom end is counterclockwise extended to form along inner wall of the hole installing
The card slot equal with guide groove quantity.
Further, the top edge of card slot is higher than the lower edge of supporting parts and card slot also above supporting parts, the height of clamp
Equal to the difference in height between card slot top edge and lower edge.
Further, the top edge of card slot is higher than supporting parts and the lower edge of card slot is lower than supporting parts, the height etc. of clamp
Difference in height between card slot top edge and supporting parts.
Further, the connector periphery is provided with the ring apron for protruding from connector, and connector inclines with respect to pedestal
When oblique, ring apron is contacted with inner wall of the hole installing.
It further, further include reseting fixture, the reseting fixture includes mutually matched screw rod and nut,
Spring is socketed on screw rod, screw rod is successively inserted through pedestal and connector and end is connect with nut.
Further, the connector bottom is additionally provided with hemispherical projections, is provided on pedestal and hemispherical projections
The consistent hemispherical groove of outer profile, hemispherical groove are fixed on supporting parts.
Further, it is additionally provided with a base plate through holes in the hemispherical groove, is provided in the hemispherical projections
Connector through-hole, screw rod sequentially pass through base plate through holes and connector through-hole after being socketed spring.
Further, the supporting parts bottom is tube-in-tube structure, and spring is rabbeted in tube-in-tube structure.
Further, the described in any item crutch support legs of claim 1 to 9 are provided with.
Contribution of the invention is to provide a kind of multi-function walking stick, by being provided with mounting hole, and mounting hole on pedestal
Inner wall is equipped with guide groove and card slot, the connecting rod with clamp is plugged in mounting hole, clamp glides along guide groove, passes through peace
The supporting parts in hole are filled by its support, connecting rod can generate inclination angle with respect to pedestal at this time, when the clamp in connecting rod is rotated to card
When in slot, supporting parts limit clamp with card slot collective effect, and connecting rod is fixedly connected with pedestal at this time, single compared to tradition to turn
For stick stem and support leg are fixed, can not only keep the fixation between support leg and crutch bar, but can make support leg with
Inclination angle is generated between crutch bar, quadrangle can land in use process, and stability is higher, in addition, crutch in use
The inclination angle generated with support frame can satisfy the inclination between human body and crutch, and realizing that long-time uses not will cause tired and flesh
The case where carnic acid pain.
[Detailed description of the invention]
Fig. 1 is Structure explosion diagram of the invention.
Fig. 2 is sectional view of the invention.
Fig. 3 is perspective view of the present invention.
Fig. 4 is connecting rod state diagram of the present invention.
[specific embodiment]
The following example is that of the invention is explained further and being supplemented, and is not limited in any way to the present invention.
Embodiment 1
As shown in Figs 1-4, the crutch support leg of the present embodiment, including pedestal 10 and connector 20, it is characterised in that: described
Pedestal 10 on be provided with mounting hole 11,11 internal diameter of mounting hole is greater than 20 outer diameter of connector and connector 20 is plugged in peace
It fills in hole 11, the pedestal 10 is provided with supporting parts 12, and supporting parts 12 are arranged in 11 bottom of mounting hole, and connector 20 is by support
In on supporting parts 12；
The vertical guide groove 13 equipped with indent on 11 inner wall of mounting hole, 13 bottom end of guide groove is along 11 inner wall up time of mounting hole
Needle counterclockwise extends to form card slot 14, and 20 periphery of connector is equipped with the clamp 21 of evagination, the height and card slot of clamp 21
14 height is equal, and the width of clamp 21 is less than or equal to the width of guide groove 13, when connector 20 is placed in mounting hole 11, clamp 21
One is selected to be placed in guide groove 13 or card slot 14.
By being provided with mounting hole 11 on pedestal 10, and 11 inner wall of mounting hole is equipped with guide groove 13 and card slot 14, by band
There is the connecting rod 20 of clamp 21 to find in mounting hole 11, clamp 21 glides along guide groove 13, passes through the supporting parts in mounting hole 21
12 by its support, and connecting rod 20 can generate inclination angle with respect to pedestal 10 at this time, when the rotation of clamp 21 in connecting rod 20 to card slot 14
When interior, supporting parts 12 limit clamp 21 with 14 collective effect of card slot, and connecting rod 20 is fixedly connected with pedestal 10 at this time, compared to biography
It unites for single crutch bar and support leg fixation, can not only keep the fixation between support leg and crutch bar, but also can make
Inclination angle is generated between support leg and crutch bar, quadrangle can land in use process, and stability is higher, in addition, using
The inclination angle that crutch and support frame generate in journey can satisfy the inclination between human body and crutch, and realizing to use for a long time not will cause
The case where tired and DOMS.
Embodiment 2
As Figure 2-3, the crutch support leg of the present embodiment, the guide groove 13 are provided with 4, and 13 bottom end of guide groove is along peace
Dress 11 inner wall of hole counterclockwise extends to form the card slot 14 equal with 13 quantity of guide groove, and the top edge of card slot 14 is higher than supporting parts
12 and card slot 14 lower edge also above supporting parts 12, the height of clamp 21 is equal to the height between 14 top edge of card slot and lower edge
It is poor to spend, and the main purpose of structure design is to be limited by card slot 14 to clamp 21.
Embodiment 3
As Figure 2-3, the crutch support leg of the present embodiment, the top edge of card slot 14 are higher than supporting parts 12 and card slot 14
Lower edge is lower than supporting parts 12, and the height of clamp 21 is equal to the difference in height between 14 top edge of card slot and supporting parts 12, the structure
The main purpose of design is limited jointly to clamp 14 by the top edge of card slot 14 and the top edge of supporting parts 12.
Embodiment 4
As shown in Figs 1-4, the crutch support leg of the present embodiment, 20 periphery of connector, which is provided with, protrudes from connector 20
Ring apron 22, connector 20 with respect to pedestal 10 tilt when, ring apron 22 is contacted with 11 inner wall of mounting hole, the structure design
Main purpose be that can play buffer function when connecting rod 20 tilts, also can reduce connecting rod 20 and 10 inner wall of pedestal
Friction.
Embodiment 5
As shown in Figs 1-4, the crutch support leg of the present embodiment further includes reseting fixture 30, the replacement and fixation dress
Setting 30 includes mutually matched screw rod 32 and nut 33, is socketed with spring 31 on screw rod 32, screw rod 32 is successively inserted through pedestal 10
With connector 20 and end is connect with nut 33.
20 bottom of connector is additionally provided with hemispherical projections 23, be provided on pedestal 10 with outside hemispherical projections 23
The consistent hemispherical groove 16 of profile, hemispherical groove 16 are fixed on supporting parts 12, and under the effect of external force, connecting rod 20 is inclined
Tiltedly, when connecting rod 20 is tilted with respect to pedestal 10, connecting rod 20 is needed to restore vertical state, the knot in the absence of external forces
The main purpose of structure setting makes 20 return of connecting rod.
Embodiment 6
As shown in Fig. 2, the crutch support leg of the present embodiment, a base plate through holes are additionally provided in the hemispherical groove 16
15, connector through-hole 24 is provided in the hemispherical projections 23, screw rod 32 sequentially passes through base plate through holes after being socketed spring 31
15 and connector through-hole 24, when the main purpose of structure design is so that clamp 21 is in guide groove 13, connector 20 and pedestal
10 will not fall off, and utilize spring 31 by 20 return of connecting rod.12 bottom of supporting parts is tube-in-tube structure, and spring 31 is embedding
It connects in tube-in-tube structure, spring 31 is located in sleeve, prevents spring 31 from skew back occurs in stress.
Embodiment 7
As shown in Figs 1-4, the crutch of the present embodiment is provided with the described in any item crutch support legs of claim 1 to 9,
Crutch with the crutch support leg can to generate inclination angle between crutch and crutch support leg to solve to use hand for a long time
The problem of arm is ached.
Although being disclosed by above embodiments to the present invention, scope of protection of the present invention is not limited thereto,
Under conditions of without departing from present inventive concept, deformation, the replacement etc. done to above each component will fall into right of the invention
In claimed range.
Claims (10)
1. crutch support leg: including pedestal (10) and connector (20), it is characterised in that: be provided with peace on the pedestal (10)
It fills hole (11), the mounting hole (11) internal diameter is greater than connector (20) outer diameter and connector (20) is plugged in mounting hole (11)
Interior, the pedestal (10) is provided with supporting parts (12), and supporting parts (12) are arranged in mounting hole (11) bottom, connector (20) quilt
Support is on supporting parts (12)；
The vertical guide groove (13) equipped with indent on mounting hole (11) inner wall, guide groove (13) bottom end is along mounting hole (11) inner wall
It extends to form clockwise or counterclockwise card slot (14), connector (20) periphery is equipped with the clamp (21) of evagination, clamp (21)
Height it is equal with the height of card slot (14), the width of clamp (21) is less than or equal to the width of guide groove (13), and connector (20) is set
When mounting hole (11) is interior, clamp (21) is selected one and is placed in guide groove (13) or card slot (14).
2. crutch support leg as described in claim 1, it is characterised in that: the guide groove (13) is provided with 3-5, guide groove
(13) bottom end counterclockwise extends to form the card slot equal with guide groove (13) quantity (14) along mounting hole (11) inner wall.
3. crutch support leg as claimed in claim 2, it is characterised in that: the top edge of card slot (14) be higher than supporting parts (12) and
The lower edge of card slot (14) is equal to card slot (14) between top edge and lower edge also above supporting parts (12), the height of clamp (21)
Difference in height.
4. crutch support leg as claimed in claim 2, it is characterised in that: the top edge of card slot (14) be higher than supporting parts (12) and
The lower edge of card slot (14) is lower than supporting parts (12), the height of clamp (21) be equal to card slot (14) top edge and supporting parts (12) it
Between difference in height.
5. the crutch support leg as described in claim 4 is any, it is characterised in that: connector (20) periphery is provided with protrusion
Ring apron (22) in connector (20), when connector (20) is tilted with respect to pedestal (10), ring apron (22) and mounting hole
(11) inner wall contacts.
6. crutch support leg as claimed in claim 5, it is characterised in that: further include reseting fixture (30), the reset
Fixed device (30) include mutually matched screw rod (32) and nut (33), and spring (31), screw rod are socketed on screw rod (32)
(32) pedestal (10) and connector (20) are successively inserted through and end is connect with nut (33).
7. crutch support leg as claimed in claim 6, it is characterised in that: described connector (20) bottom is additionally provided with hemisphere
Shape is raised (23), is provided on pedestal (10) and the consistent hemispherical groove of hemispherical projections (23) outer profile (16), hemispherical
Groove (16) is fixed on supporting parts (12).
8. crutch support leg as claimed in claim 7, it is characterised in that: be additionally provided with a bottom in the hemispherical groove (16)
Block hole (15) is provided with connector through-hole (24) in the hemispherical projections (23), after screw rod (32) is socketed spring (31)
Sequentially pass through base plate through holes (15) and connector through-hole (24).
9. crutch support leg as claimed in claim 4, it is characterised in that: supporting parts (12) bottom is tube-in-tube structure, bullet
Spring (31) is rabbeted in tube-in-tube structure.
10. a kind of crutch, it is characterised in that: be provided with the described in any item crutch support legs of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910663624.4A CN110236892B (en) | 2019-07-23 | 2019-07-23 | Walking stick supporting leg and walking stick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910663624.4A CN110236892B (en) | 2019-07-23 | 2019-07-23 | Walking stick supporting leg and walking stick |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110236892A true CN110236892A (en) | 2019-09-17 |
| CN110236892B CN110236892B (en) | 2024-01-30 |
Family
ID=67893274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910663624.4A Active CN110236892B (en) | 2019-07-23 | 2019-07-23 | Walking stick supporting leg and walking stick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110236892B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114259113A (en) * | 2021-12-01 | 2022-04-01 | 佛山市南海德洋创展康复器材有限公司 | Walking stick with angle swing function |
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| US20050055977A1 (en) * | 2003-09-15 | 2005-03-17 | Tetsuji Kawakami | Nonslip walking stick rest |
| US20050189008A1 (en) * | 2004-02-26 | 2005-09-01 | Bonin Henry K.Jr. | Stair-adjustable crutch |
| JP2006102054A (en) * | 2004-10-04 | 2006-04-20 | Shinozaki Nagao | Self-standing walking stick |
| CN203969491U (en) * | 2014-07-26 | 2014-12-03 | 宁波超艺日用品有限公司 | A kind of crutch |
| CN204599617U (en) * | 2015-05-15 | 2015-09-02 | 李铱周 | Antislip underarm crutch |
| TWM531272U (en) * | 2016-06-07 | 2016-11-01 | Jun-Xing Wu | Replaceable foot of crutches |
| JP3209599U (en) * | 2017-01-16 | 2017-03-30 | ユーバ産業株式会社 | Walking aid |
| CN206079344U (en) * | 2016-08-31 | 2017-04-12 | 宁波川图日用品有限公司 | Multifunctional base walking stick |
| TWM539932U (en) * | 2016-11-15 | 2017-04-21 | Hl Corp (Shenzhen) | Walking stick structure |
| CN206167320U (en) * | 2015-07-23 | 2017-05-17 | 大详有限公司 | Walking stick base |
| US20170156459A1 (en) * | 2015-12-03 | 2017-06-08 | Shyh Min Chen | Adaptive Pivoting and Impact Reduction Tip Assembly for Walking Aids |
| CN206651463U (en) * | 2016-12-22 | 2017-11-21 | 深圳信隆健康产业发展股份有限公司 | Crutch structure |
| CN107361486A (en) * | 2017-09-18 | 2017-11-21 | 桂林航天工业学院 | A kind of alpin-stock |
| CN207356227U (en) * | 2017-03-20 | 2018-05-15 | 镇江市高等专科学校 | A kind of high-performance Oxter crutch anti-skidding component |
| CN108852759A (en) * | 2018-05-11 | 2018-11-23 | 高芳军 | A multi-legged crutch for an orthopedic patient |
| CN208659845U (en) * | 2018-03-16 | 2019-03-29 | 四川大学华西医院 | Walking stick for nursing old people |
| CN109806120A (en) * | 2019-03-11 | 2019-05-28 | 丽水市人民医院 | A non-slip and retractable multifunctional axillary crutch |
| CN211244421U (en) * | 2019-07-23 | 2020-08-14 | 深圳市信邦轮椅有限公司 | Walking stick supporting leg and walking stick |
-
2019
- 2019-07-23 CN CN201910663624.4A patent/CN110236892B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050055977A1 (en) * | 2003-09-15 | 2005-03-17 | Tetsuji Kawakami | Nonslip walking stick rest |
| US20050189008A1 (en) * | 2004-02-26 | 2005-09-01 | Bonin Henry K.Jr. | Stair-adjustable crutch |
| JP2006102054A (en) * | 2004-10-04 | 2006-04-20 | Shinozaki Nagao | Self-standing walking stick |
| CN203969491U (en) * | 2014-07-26 | 2014-12-03 | 宁波超艺日用品有限公司 | A kind of crutch |
| CN204599617U (en) * | 2015-05-15 | 2015-09-02 | 李铱周 | Antislip underarm crutch |
| CN206167320U (en) * | 2015-07-23 | 2017-05-17 | 大详有限公司 | Walking stick base |
| US20170156459A1 (en) * | 2015-12-03 | 2017-06-08 | Shyh Min Chen | Adaptive Pivoting and Impact Reduction Tip Assembly for Walking Aids |
| TWM531272U (en) * | 2016-06-07 | 2016-11-01 | Jun-Xing Wu | Replaceable foot of crutches |
| CN206079344U (en) * | 2016-08-31 | 2017-04-12 | 宁波川图日用品有限公司 | Multifunctional base walking stick |
| TWM539932U (en) * | 2016-11-15 | 2017-04-21 | Hl Corp (Shenzhen) | Walking stick structure |
| CN206651463U (en) * | 2016-12-22 | 2017-11-21 | 深圳信隆健康产业发展股份有限公司 | Crutch structure |
| JP3209599U (en) * | 2017-01-16 | 2017-03-30 | ユーバ産業株式会社 | Walking aid |
| CN207356227U (en) * | 2017-03-20 | 2018-05-15 | 镇江市高等专科学校 | A kind of high-performance Oxter crutch anti-skidding component |
| CN107361486A (en) * | 2017-09-18 | 2017-11-21 | 桂林航天工业学院 | A kind of alpin-stock |
| CN208659845U (en) * | 2018-03-16 | 2019-03-29 | 四川大学华西医院 | Walking stick for nursing old people |
| CN108852759A (en) * | 2018-05-11 | 2018-11-23 | 高芳军 | A multi-legged crutch for an orthopedic patient |
| CN109806120A (en) * | 2019-03-11 | 2019-05-28 | 丽水市人民医院 | A non-slip and retractable multifunctional axillary crutch |
| CN211244421U (en) * | 2019-07-23 | 2020-08-14 | 深圳市信邦轮椅有限公司 | Walking stick supporting leg and walking stick |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114259113A (en) * | 2021-12-01 | 2022-04-01 | 佛山市南海德洋创展康复器材有限公司 | Walking stick with angle swing function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110236892B (en) | 2024-01-30 |
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