CN105433538A - Joint locking device and crutch chair provided with joint locking device - Google Patents
Joint locking device and crutch chair provided with joint locking device Download PDFInfo
- Publication number
- CN105433538A CN105433538A CN201410403956.6A CN201410403956A CN105433538A CN 105433538 A CN105433538 A CN 105433538A CN 201410403956 A CN201410403956 A CN 201410403956A CN 105433538 A CN105433538 A CN 105433538A
- Authority
- CN
- China
- Prior art keywords
- joint locking
- joint
- seat
- foot
- unit
- 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
Landscapes
- Rehabilitation Tools (AREA)
Abstract
The invention discloses a joint locking device and a crutch chair provided with the joint locking device. The joint locking device comprises a foot rest unit and a joint locking unit. The foot rest unit comprises first foot rods, and second foot rods in pivot joint with the first root rods. The joint locking unit comprises sliding rods slidably arranged at the first root rods by being opposite to the first foot rods and locking blocks which are arranged on the second foot rods and corresponds to the sliding rods. The locking blocks are provided with rotary shafts, sliding surfaces with the rotary shafts as the circular centers and locking surfaces. The distances between the locking surfaces and the rotary shafts are less than the radii of the locking surfaces of the sliding surfaces. The joint locking device and the crutch chair provided with the joint locking device have following beneficial effects: the joint locking unit can located at either locking position and unlocking position; at the locking position, the sliding rods are embedded between locking surfaces and first foot rods such that the first foot rods and the second foot rods are relatively fixed; at the unlocking position, the sliding rods are separated from the sliding surfaces such that the first foot rods can pivotally rotate relative to the second foot rods; and convenience and safety of using the crutch chair are improved.
Description
Technical field
The present invention relates to a kind of chair, particularly relate to a kind of joint locking device and there is the crutch chair of joint locking device.
Background technology
Generally be arranged on movable crutch chair on crutch mobile jib mainly for allowing user can in the process of walking, freely on the way have a rest to regain one's strength according to the situation of oneself health, therefore, crutch chair must possess the effect being easy to use and provide firm support.
If the patent No. is US2,380,437 and the patent No. be US3,999, the United States Patent (USP) of 565, or TaiWan, China discloses No. 102113330 crutch chair disclosed by Patent Case, mainly all there is a support bar and the combined support and a seat support drawn close in this support bar can be folded respectively, but above-mentioned existing crutch chair is in expansion and when folding, user all needs this combined support of manual operation, and the convenience on using is not enough, and the foot rest of existing crutch chair does not have a locking device, the stability of structure is not enough, if slightly do not note when using, easily generation tumble injury etc. are unexpected.
Summary of the invention
Therefore, the present inventor is in view of the disappearance in existing crutch chair structure and use, special through continuous research and experiment, finally develops a kind of the present invention solving existing crutch chair disappearance.
Main purpose of the present invention, be the crutch chair providing a kind of joint locking device and have joint locking device, it can reach the object being easy to use and improve structural soundness.
The present invention is the technical scheme solving this technical problem employing; A kind of crutch chair, it includes:
Mobile jib, is arranged vertically;
Positioning seat unit, be set on mobile jib along this axis is slidable, this positioning seat unit includes positioning seat and is positioned at the sliding sleeve below positioning seat;
Upper saddle, is set on mobile jib along this axis is slidable, and is positioned at above this positioning seat;
Seat unit, is pivoted and is connected to this upper saddle, and this seat unit includes seat group;
Joint locking device, include foot rest unit and joint locking unit, this foot rest unit includes the first foot lever that two are articulated in this positioning seat, two the second foot levers being articulated in the first foot lever respectively, two limit rods be articulated in respectively between this sliding sleeve and the second foot lever, and two are articulated in respectively and affect bar between this upper saddle and the first foot lever, this joint locking unit includes two can be arranged on the slippage bar of the first foot lever by this first foot rest respectively relatively slippingly, two ends are individually fixed in these two slippage bars and pass the stay cord of two first foot levers, and two be arranged at two these the second foot levers respectively and to should slippage bar arrange clamping block, each clamping block has rotating shaft respectively, with the sliding surface that this rotating shaft is the center of circle, and be less than the lock face of this sliding surface radius with the distance of this rotating shaft.
The present invention separately provides a kind of joint locking device, and it includes:
Foot rest unit, this foot rest unit includes the first foot lever and is articulated in the second foot lever of the first foot lever; And
Joint locking unit, include and can be arranged on the slippage bar of the first foot lever slippingly and be arranged at this second foot lever and the clamping block that arranges of corresponding slippage bar by relative first foot rest, this clamping block has rotating shaft, with this rotating shaft sliding surface that is the center of circle and be less than the lock face of this sliding surface radius with the distance of this rotating shaft.
The invention has the beneficial effects as follows:
1. the present invention utilizes cooperatively interacting of positioning seat unit, upper saddle, seat unit and foot rest unit, can improve crutch chair ease of use.
2. joint locking device of the present invention can the firm support effect of Crutches Available chair.
3. the present invention can utilize stay cord to coordinate joint elasticity part, crutch chair is allowed to automatically switch to latched position, and user is when pulling crutch chair to stowed position, joint locking unit can automatically switch to unlocked position, so the present invention is when operating, does not need extra action, automatically can reach latched position when expanded position, and the moment of stowed position movement also can reach unlocked position automatically, convenience and the security of crutch chair use can be promoted.
Accompanying drawing explanation
Fig. 1 is the stereo appearance figure of the present invention when expanded position.
Fig. 2 is the side view of the present invention when expanded position.
Fig. 3 is the stereo appearance figure of the present invention when stowed position.
Fig. 4 is sectional perspective exploded view of the present invention.
Fig. 5 is the amagnified partial perspective outside drawing of positioning seat unit of the present invention and a foot rest unit.
Fig. 6 is positioning seat unit of the present invention and the foot rest unit side cutaway view at expanded position.
Fig. 7 is that the present invention is converted into the partial side, cross-sectional view of unlocked position by latched position.
Fig. 8 A is the side cutaway view of positioning seat unit of the present invention when stowed position.
Fig. 8 B is the partial enlarged drawing at A position in Fig. 8 A.
Fig. 9 is the sectional perspective outside drawing of partial component of the present invention when stowed position.
Figure 10 is the partial side, cross-sectional view of seat of the present invention when stowed position.
Figure 11 is the enlarged fragmentary cross section of invention joint locking unit operations.
Detailed description of the invention
Below coordinating graphic and the preferred embodiments of the present invention, setting forth the technological means that the present invention takes for reaching predetermined goal of the invention further.
The present invention is to provide a kind of joint locking device and has the crutch chair of joint locking device, please refer to Fig. 1 to Fig. 3, can see by figure, crutch chair of the present invention includes mobile jib 10, positioning seat unit 20, upper saddle 30, seat unit 40 and a joint locking device.
Please refer to Fig. 1 and Fig. 9, this mobile jib 10 arranges along an axial L, include the two recessed rails 11 arranged along this axial L, and one is arranged on limited screw 12 in this recessed rail 11, this recessed rail 11 can improve the structural strength of mobile jib 10, and track when positioning seat unit 20 and upper saddle 30 start can be provided, to increase the stability of integrated operation.
This positioning seat unit 20 is slidably enclosed within mobile jib 10 along this axial L, include positioning seat 21, sliding sleeve 22, connecting rod 23 and a back-moving spring 24, this sliding sleeve 22 is arranged on the below of positioning seat 21, this connecting rod 23 connects this positioning seat 21 and sliding sleeve 22, and the two ends of back-moving spring 24 are connected to positioning seat 21 and upper saddle 30.
Please refer to Fig. 2, this upper saddle 30 is slidably set on mobile jib 10 along this axial L, and be positioned at the top of positioning seat 21.
Please refer to Fig. 1 and Fig. 2, this seat unit 40 is pivoted to be connected to upper saddle 30, include seat group 41, two folded rod 42 and two traces 43, this folded rod 42 is connected between positioning seat 21 and seat group 41, two traces 43 are arranged at respectively between upper saddle 30 and two folded rods 42, and the two ends of each trace 43 are connected on this upper saddle 30 and a corresponding folded rod 42.
This seat group 41 includes main seat 411 and a both sides seat 412, these main seat 411 two ends form inner end 413 and an outer end 414 respectively, and this inner end 413 is connected to this upper saddle 30, and main seat 411 bottom surface is provided with the hook sheet 415 that is adjacent to outer end 414, both sides seat 412 is the both sides being articulated in main seat 411 respectively, and both sides seat 412 is articulated with two folded rods 42 respectively.
This joint locking device can convert between a latched position and a unlocked position, it consists predominantly of foot rest unit 50 and a joint locking unit 60, this foot rest unit 50 includes two first foot lever 51, two second foot lever 52, two limit rods 53 and two and affects bar 54, this two first foot lever 51 is articulated in this positioning seat 21, two second foot levers 52 are articulated in this two first foot lever 51 respectively, this two limit rod 53 is respectively between pivot joint sliding sleeve 22 and the second foot lever 52, respectively affects the two ends of bar 54 to be articulated in upper saddle 30 and one first foot lever 51 respectively.
Please refer to Fig. 4 to Fig. 6 and Figure 11, this joint locking unit 60 includes a hook rope seat 61, one hooks rope spring 62, two slippage bars 63, one stay cord 64, two clamping blocks 65, two joint elastic component 66 and one hooks groove 68, this hook rope seat 61 can be arranged on this positioning seat 21 movably along this axial L, or be sheathed on mobile jib 10 slidably, and be connected to positioning seat 21, and be positioned at the below of limited screw 12, this hook rope spring 62 is arranged to hook between rope seat 61 and positioning seat 21, two slippage bars 63 can be slidably arranged on two first foot levers 51 by relative first foot lever 51 respectively, each slippage bar 63 has embedded surface 631 and a banking stop 632, the two ends of this stay cord 64 hook cord hole through one on this hook rope seat 61 and are individually fixed in two slippage bars 63, two clamping blocks 65 are placed on two second foot levers 52 respectively, and corresponding two slippage bars 63, each clamping block 65 has a rotating shaft, one sliding surface 652 and a lock face 653, this sliding surface 652 take rotating shaft as the center of circle, this lock face 653 and the distance of rotating shaft are less than the radius of this sliding surface 652, and lock face 653 and the embedded surface 631 of relative slippage bar 63 are respectively in the plane corresponded to each other, two joint elastic component 66 is arranged between two slippage bars 63 and two first foot levers 51 respectively, and can by these slippage bar 63 perseverance pushing and pressing to relative clamping block 65, wherein, joint elasticity part 66 can be Compress Spring, this hook groove 68 is arranged at this hook rope seat 61 bottom surface and it is opening down, and it is corresponding with hook sheet 415.
This joint locking unit 60 also includes joint mount pad 67, joint mount pad 67 is located at each first foot lever 51 and can be installed for corresponding joint elasticity part 66 and two slippage bars 63, and this joint mount pad 67 has one for the spacing perforate 671 of corresponding banking stop 632 setting of institute.
Please refer to Fig. 5 and Fig. 6, joint locking device 60 is when latched position, each slippage bar 63 embeds between the lock face 653 of clamping block 65 and the second relative foot lever 52 respectively, and the embedded surface 631 of slippage bar 63 is fitted together to lock face 653 respectively, and the relative position fixed between the first foot lever 51 and the second foot lever 52, now, joint elasticity part 66 is in relaxation state, preferably, second foot lever 52 is positioned on the extension line of the first foot lever 51, in addition, also can because of different designs demand, , in non-rectilinear, there is an angle between the first foot lever 51 and crus secunda 52 bar, as 150 degree of angles etc.
Please refer to Fig. 7, Fig. 9 and Figure 11, when joint locking device 60 is converted into the moment of unlocked position by latched position, slippage bar 63 can go out of lock the lock face 653 of block 65, joint elasticity part 66 can respectively compress by the joint mount pad 67 on slippage bar 63 and the first foot lever 51, after joint locking device 60 arrives unlocked position, the embedded surface 631 of slippage bar 63 can with sliding surface 652 linear contact lay, make the first foot lever 51 can distinguish relative second foot lever 52 pivotable, and when joint locking device 60 switches between latched position and unlocked position, banking stop 632 meeting slippage between the two ends of spacing perforate 671 respectively, spacing perforate 671 like this can in order to restrict the slippage scope of slippage bar 63.
Please refer to Fig. 2 and Fig. 6, crutch chair of the present invention is when expanded position, and the first foot lever 51, second foot lever 52 is respectively away from mobile jib 10, and to support mobile jib 10, make mobile jib 10 tiltedly can stand on ground, now, joint locking device is in latched position.
Please refer to Fig. 2 and Fig. 7, when crutch chair is transformed into stowed position by expanded position, upper saddle 30 is upwards pulled along mobile jib 10 together with positioning seat unit 20, and upper saddle 30 is while slip, positioning seat unit 20 and the first foot lever 51 can be driven by affecting bar 54, until hook rope seat 61 be upwards resisted against limited screw 12, and compression hooks rope spring 62, and order hooks rope seat 61 relative positioning seat 21 to bottom offset, to pull stay cord 64, and slippage bar 63 can compress joint elasticity part 66 while away from lock face 653, slippage bar 63 and clamping block 65 are unlocked, be converted into unlocked position, make to affect bar 54 to drive foot rest unit 60 folding.
Please refer to Fig. 2 and Fig. 3, when upper saddle 30 drives folded rod 42 to rotate for centring point with positioning seat 21 upward by trace 43, slippage on the back of the body rail that folded rod 42 is set on side seat 412, and make side seat 412 times turns draw close in mobile jib 10 gradually, finally, main seat 411 and side seat 412 are in the coated mobile jib 10 of U-shaped.
Please refer to Fig. 3, Fig. 8 A to Figure 10, when crutch chair is at stowed position, the first foot lever 51 respectively with the relative doubling of the second foot lever 52, and hook sheet 415 hook in hook groove 68, and back-moving spring 24 be stretched.
When crutch chair is converted into expanded position by stowed position, upper saddle 30 is untied location in a location hook groove, about the structure non-invention emphasis between upper saddle 30 and location hook groove, so separately do not repeat, utilize gravity to take advantage of a situation and promote upper saddle 30 interlock positioning seat unit 20 slide downward, and hook rope spring 62 by hook rope seat 61 relative positioning seat 21 upwardly, hook sheet 415 is separated with hook groove 68, to remove the locking of seat unit 40, and by the elastic-restoring force shortening upper saddle 30 of back-moving spring 24 and the distance of positioning seat unit 20, and allow and affect bar 54 to affect the second foot lever 52 away from mobile jib 10.
At the same time, second foot lever 52 drives the arc surface Relative sliding bar 63 of clamping block 65 to rotate respectively, and due to hook rope seat 61 departed from limited screw 12 against, so stay cord 64 and joint elasticity part 66 can be loosened simultaneously, when foot rest unit 50 launches, slippage bar 63 is made to automatically lock in clamping block 65 up conversion to latched position.
The above is only the preferred embodiments of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, not departing from the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (16)
1. there is a crutch chair for joint locking device, it is characterized in that, described in there is joint locking device crutch chair include:
Mobile jib, is arranged vertically;
Positioning seat unit, be set on mobile jib along this axis is slidable, this positioning seat unit includes positioning seat and is positioned at the sliding sleeve below positioning seat;
Upper saddle, is set on mobile jib along this axis is slidable, and is positioned at above this positioning seat;
Seat unit, is pivoted and is connected to this upper saddle, and this seat unit includes seat group;
Joint locking device, include foot rest unit and joint locking unit, this foot rest unit includes the first foot lever that two are articulated in this positioning seat, two the second foot levers being articulated in the first foot lever respectively, two limit rods be articulated in respectively between this sliding sleeve and the second foot lever, and two are articulated in respectively and affect bar between this upper saddle and the first foot lever, this joint locking unit includes two can be arranged on the slippage bar of the first foot lever by this first foot rest respectively relatively slippingly, two ends are individually fixed in these two slippage bars and pass the stay cord of two first foot levers, and two be arranged at two these the second foot levers respectively and to should slippage bar arrange clamping block, each clamping block has rotating shaft respectively, with the sliding surface that this rotating shaft is the center of circle, and be less than the lock face of this sliding surface radius with the distance of this rotating shaft.
2. crutch chair according to claim 1, is characterized in that, this joint locking unit also includes two and is arranged at permanent for this slippage bar joint elasticity part pushed against to this clamping block respectively between this slippage bar and this first foot lever.
3. crutch chair according to claim 2, is characterized in that, this joint locking unit also includes and can axially movably be sheathed on the hook rope seat of this mobile jib along this, and this stay cord is through this hook rope seat.
4. crutch chair according to claim 2, is characterized in that, this joint locking unit also includes and can axially movably be arranged at the hook rope seat of this positioning seat along this, and this stay cord is through this hook rope seat.
5. crutch chair according to claim 2, is characterized in that, respectively this joint elasticity part is Compress Spring.
6. crutch chair according to claim 1, is characterized in that, respectively this slippage pole pair the lock face of clamping block should have embedded surface, and this lock face and this embedded surface are all planes.
7. crutch chair according to claim 1, it is characterized in that, this joint locking unit also includes the joint mount pad that two are separately positioned on this first foot lever, and each joint mount pad is respectively equipped with spacing perforate, and each slippage bar is respectively equipped with correspondence is arranged at banking stop in this spacing perforate.
8. the crutch chair according to claim 3 or 4, it is characterized in that, this mobile jib also includes along the recessed recessed rail of this axis and to be arranged in recessed rail and the limited screw be positioned at above this hook rope seat, and this positioning seat unit also includes the connecting rod connecting this positioning seat and sliding sleeve.
9. crutch chair according to claim 8, it is characterized in that, this seat group has main seat, this main seat has inner end and the outer end that connects this upper saddle, and the position of contiguous outer end is provided with hook sheet in the bottom surface of this main seat, this joint locking unit also includes the hook rope spring be located between this hook rope seat and positioning seat, and is arranged on hook rope seat hooking sheet and downward opening hook groove.
10. crutch chair according to claim 1, is characterized in that, this seat unit also includes folded rod and two traces that two are connected to this positioning seat and seat group, and the two ends of each trace are connected to this folded rod and upper saddle.
11. 1 kinds of joint locking devices, is characterized in that, this joint locking device includes:
Foot rest unit, this foot rest unit includes the first foot lever and is articulated in the second foot lever of the first foot lever; And
Joint locking unit, include and can be arranged on the slippage bar of the first foot lever slippingly and be arranged at this second foot lever and the clamping block that arranges of corresponding slippage bar by relative first foot rest, this clamping block has rotating shaft, with this rotating shaft sliding surface that is the center of circle and be less than the lock face of this sliding surface radius with the distance of this rotating shaft.
12. joint locking devices according to claim 11, is characterized in that, this joint locking unit also includes to be arranged between this slippage bar and first foot lever slippage bar perseverance is pushed against joint elasticity part to clamping block.
13. joint locking devices according to claim 12, is characterized in that, each joint elasticity part is Compress Spring.
14. joint locking devices according to claim 12, is characterized in that, this joint locking unit also includes the stay cord that this slippage bar is fixed in one end.
15. joint locking devices according to claim 11, is characterized in that, this slippage pole pair the lock face of clamping block should have embedded surface, and this lock face and this embedded surface are all planes.
16. joint locking devices according to claim 11, it is characterized in that, this joint locking unit also includes the joint mount pad being arranged on this first foot lever, and this joint mount pad is provided with spacing perforate, and this slippage bar is provided with correspondence and is arranged at banking stop in this spacing perforate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410403956.6A CN105433538B (en) | 2014-08-15 | 2014-08-15 | Joint locking device and crutch chair provided with joint locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410403956.6A CN105433538B (en) | 2014-08-15 | 2014-08-15 | Joint locking device and crutch chair provided with joint locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105433538A true CN105433538A (en) | 2016-03-30 |
| CN105433538B CN105433538B (en) | 2017-05-10 |
Family
ID=55544525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410403956.6A Active CN105433538B (en) | 2014-08-15 | 2014-08-15 | Joint locking device and crutch chair provided with joint locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105433538B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107296345A (en) * | 2017-08-20 | 2017-10-27 | 周建华 | A kind of crutch with bench function |
| CN109303393A (en) * | 2018-11-27 | 2019-02-05 | 上海蕊马医疗器械有限公司 | A kind of light flexible cane of intelligence |
| WO2020051869A1 (en) * | 2018-09-14 | 2020-03-19 | 深圳市怡川机械设备有限公司 | Automatic folding crutch stool |
| CN113827011A (en) * | 2021-10-11 | 2021-12-24 | 宁波大学 | Multifunctional walking stick |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3643292A (en) * | 1968-08-23 | 1972-02-22 | Otto Mayer | Automatically interlockable hinge fitting |
| JP2007209590A (en) * | 2006-02-10 | 2007-08-23 | Minoru Kobayashi | Stool |
| CN201271345Y (en) * | 2008-09-26 | 2009-07-15 | 卫家宣 | Walking stick with automatically ejecting sitting stool for disabled person |
| CN103859723A (en) * | 2012-12-13 | 2014-06-18 | 鲍志廷 | Crutch chair |
-
2014
- 2014-08-15 CN CN201410403956.6A patent/CN105433538B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3643292A (en) * | 1968-08-23 | 1972-02-22 | Otto Mayer | Automatically interlockable hinge fitting |
| JP2007209590A (en) * | 2006-02-10 | 2007-08-23 | Minoru Kobayashi | Stool |
| CN201271345Y (en) * | 2008-09-26 | 2009-07-15 | 卫家宣 | Walking stick with automatically ejecting sitting stool for disabled person |
| CN103859723A (en) * | 2012-12-13 | 2014-06-18 | 鲍志廷 | Crutch chair |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107296345A (en) * | 2017-08-20 | 2017-10-27 | 周建华 | A kind of crutch with bench function |
| CN107296345B (en) * | 2017-08-20 | 2023-04-25 | 周建华 | Walking stick with stool function |
| WO2020051869A1 (en) * | 2018-09-14 | 2020-03-19 | 深圳市怡川机械设备有限公司 | Automatic folding crutch stool |
| CN109303393A (en) * | 2018-11-27 | 2019-02-05 | 上海蕊马医疗器械有限公司 | A kind of light flexible cane of intelligence |
| CN113827011A (en) * | 2021-10-11 | 2021-12-24 | 宁波大学 | Multifunctional walking stick |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105433538B (en) | 2017-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105433538A (en) | Joint locking device and crutch chair provided with joint locking device | |
| CN104771291B (en) | Folding chair with locking structure | |
| CN104433073B (en) | A kind of suitcase | |
| CN106551478A (en) | Steel cable guiding device and walking stick chair with same | |
| CN104545072B (en) | Folding chair | |
| CN108938249A (en) | Nursing bed | |
| CN103330423B (en) | A kind of child entertainment bed | |
| CN107714403A (en) | A kind of medical crutch for being easy to patient to adjust height | |
| CN203467854U (en) | Travel suitcase | |
| CN205476161U (en) | Loft extension ladder | |
| CN206086452U (en) | Children's seat quick -connect machanism | |
| CN203815826U (en) | Folding walking stick | |
| WO2016023222A1 (en) | Joint locking device and crutch chair having same | |
| CN204562810U (en) | Multifunction walking-aid device | |
| CN204151653U (en) | The simple and easy fitting machine of road kerb | |
| CN204032866U (en) | Cribguard | |
| CN208602553U (en) | Carriage for baby hand handle has both device that is flexible and returning the vehicle to the garage and knock off | |
| CN202445280U (en) | Multifunctional medical anti-skidding crutch | |
| CN203776457U (en) | Leisure chair with rotating clamp shoulder | |
| CN207190849U (en) | A kind of anti-retraction structure of extending type | |
| CN108685380B (en) | Multifunctional portable folding chair and use method thereof | |
| CN202919583U (en) | Stay-free telescopic director chair | |
| CN205400574U (en) | Extension ladder is with safe locking device that connects | |
| CN206315231U (en) | A kind of medical bed changing device | |
| CN108209319A (en) | A kind of rapid in-situ is vertically moved up or down bed fence |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |