CN204199857U - A kind of guardrail - Google Patents
A kind of guardrail Download PDFInfo
- Publication number
- CN204199857U CN204199857U CN201420614913.8U CN201420614913U CN204199857U CN 204199857 U CN204199857 U CN 204199857U CN 201420614913 U CN201420614913 U CN 201420614913U CN 204199857 U CN204199857 U CN 204199857U
- Authority
- CN
- China
- Prior art keywords
- guardrail
- hinged
- connecting rod
- block
- cross bar
- 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
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
- A47D13/00—Other nursery furniture
- A47D13/06—Children's play- pens
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H15/00—Tents or canopies, in general
- E04H15/32—Parts, components, construction details, accessories, interior equipment, specially adapted for tents, e.g. guy-line equipment, skirts, thresholds
- E04H15/34—Supporting means, e.g. frames
- E04H15/44—Supporting means, e.g. frames collapsible, e.g. breakdown type
- E04H15/48—Supporting means, e.g. frames collapsible, e.g. breakdown type foldable, i.e. having pivoted or hinged means
- E04H15/50—Supporting means, e.g. frames collapsible, e.g. breakdown type foldable, i.e. having pivoted or hinged means lazy-tongs type
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H15/00—Tents or canopies, in general
- E04H15/32—Parts, components, construction details, accessories, interior equipment, specially adapted for tents, e.g. guy-line equipment, skirts, thresholds
- E04H15/64—Tent or canopy cover fastenings
Abstract
The utility model discloses a kind of guardrail, connection rod set is X-type structure, the first connecting rod be hinged in the middle part of comprising and second connecting rod, be hinged by the connection rod set end of at least three groups or more than three groups and form guardrail body, by controlling the locking device on guardrail body, rapidly guardrail body and connected guardrail block cloth can be launched, or guardrail body and guardrail block cloth are drawn in folding, adopt said structure, realize the maximize that guardrail body surrounds, easy and simple to handle, and when guardrail body and guardrail block cloth are drawn in folding, overall volume is little, be convenient for people to go out to carry, improve the comfort level that people use.
Description
[technical field]
The utility model relates to a kind of guardrail.
[background technology]
In prior art, the kind of guardrail is a lot, mainly comprises two kinds of structures: a kind of is fixed structure, cannot fold, Disassembling Products, when shipping products, is normally packed by the guardrail of this structure, client in use prompting to specifications just can be assembled, and when the product not used time assembled, or dismounting packing, or directly place, the former wastes time and energy, latter takes up room comparatively large, hinders putting of other article, and is unfavorable for the requirement of neatly putting; The second is folding structure, and the instructions for use of people expired to a great extent by the guardrail of this structure, but it is also just simple folding, when folding or launch, operate all more loaded down with trivial details, generally all need two people to operate, therefore, bring inconvenience in use, in addition, the product after folding, its space taken is still larger, when needs are carried to outdoor use, still inconvenience.
Namely the utility model is researched and proposed for the deficiencies in the prior art.
[utility model content]
The technical problems to be solved in the utility model is to provide a kind of guardrail, connection rod set is X-type structure, the first connecting rod be hinged in the middle part of comprising and second connecting rod, be hinged by the connection rod set end of at least three groups or more than three groups and form guardrail body, by controlling the locking device on guardrail body, rapidly guardrail body can be launched, or guardrail body is drawn in folding, adopt said structure, realize the maximize that guardrail body surrounds, easy and simple to handle, and when guardrail body is drawn in folding, overall volume is little, be convenient for people to go out to carry, improve the comfort level that people use.
For solving the problems of the technologies described above, a kind of guardrail of the utility model, adopts following technical scheme:
A kind of guardrail of the utility model, comprise the connection rod set in X-type structure, be hinged by the connection rod set head and the tail of at least three groups or more than three groups and form guardrail body, described connection rod set comprises first connecting rod and second connecting rod, be hinged in the middle part of described first connecting rod and second connecting rod, described guardrail body is provided with and makes it keep deployed condition for locking guardrail body or draw the locking device of folded state in for making guardrail body be transformed to by deployed condition.
The two ends of described first connecting rod are hinged with the end of second connecting rod in adjacent links group respectively, and the two ends of described second connecting rod are hinged with the end of first connecting rod in adjacent links group respectively.
Articulated mounting is provided with between described first connecting rod and the end of second connecting rod, described articulated mounting comprises hinged block and hinging pin shaft, described hinged block is provided with the hinged axis hole be rotationally connected for hinging pin shaft, and two pieces of hinged blocks be hinged are connected with the end winding support of first connecting rod and second connecting rod respectively.
Described locking device comprises the first cross bar, second cross bar, clamping block and cross bar hinging pin shaft, described first cross bar is provided with the first cross bar link and the second hinged end, described second cross bar is provided with the 3rd hinged end and the 4th hinged end, described second hinged end, 4th hinged end and clamping block are articulated and connected by cross bar hinging pin shaft, described 4th hinged end is provided with for overlapping the second hinged end and for limiting the flanging that clamping block rotates around cross bar hinging pin shaft, described clamping block one end is provided with for blocking the first cross bar to make the first cross bar and the latch hook of the second cross bar maintenance in yi word pattern, described cross bar hinging pin shaft overlapping have makes latch hook block the holddown spring of the first cross bar for pushing up pressure clamping block.
Described second hinged end is the 4th between hinged end and clamping block.
The middle part of described clamping block and the second hinged end and the 4th hinged end are articulated and connected, described first cross bar link and first connecting rod hinged, described 3rd hinged end and second connecting rod hinged.
The utility model also comprises the guardrail block cloth removably connected with guardrail body, and described guardrail block cloth is one-body molded.
The top edge of described guardrail block cloth is circumferentially provided with some engaging lugs, described engaging lug is provided with junction button a, the hinged block being positioned at guardrail body upper end is provided with the junction button b for being fastened and connected with junction button a, described guardrail block cloth is provided with for tying up at the structural bandage of connection rod set X-type, connecting band is fixedly connected with bottom described guardrail block cloth, the other end of described connecting band is fixedly connected with guardrail block cloth 5 side, and described connecting band is provided with the fixture block for being connected on the hinged block being positioned at guardrail body lower end.
Described fixture block is provided with the fixture block connecting hole for interting for connecting band, for penetrate for hinging pin shaft large end snap in hole with for clamping the clamping hole that hinging pin shaft neck is connected with guardrail body lower end to make the bottom of guardrail block cloth, the described diameter snapping in hole be greater than clamping hole diameter, described in snap in hole with clamping hole be calabash shape structure.
Compared with prior art, a kind of guardrail tool of the utility model has the following advantages:
1, guardrail body launch or folding operation easy, by one man operation;
2, the space surrounded when guardrail body launches realizes maximizing, and ensures that having enough spaces uses;
3, when guardrail body draws in folding, overall volume realizes minimizing, and is convenient for people to go out to carry or collect;
4, structural reduction, reduces cost of production, improves the competitiveness of product.
[accompanying drawing explanation]
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail, wherein:
Fig. 1 is that the utility model adopts six groups of hinged formation of connection rod set and is in the structural representation of the guardrail body of deployed condition.
Fig. 2 is the structural representation that the utility model connects guardrail block cloth.
Fig. 3 is the structural representation of guardrail block cloth in the utility model.
Fig. 4 is the structural representation of connection rod set in the utility model.
Fig. 5 is the explosive view of connection rod set in the utility model.
Fig. 6 is the structural representation that in the utility model, connection rod set is connected with locking device.
Fig. 7 is the structural representation of locking device in the utility model.
Fig. 8 is the explosive view of locking device in the utility model.
Fig. 9 is the structural representation of hinged block in the utility model.
Figure 10 is the structural representation of articulated mounting in the utility model.
Figure 11 is the structural representation that in the utility model, articulated mounting is connected with fixture block.
Figure 12 is the structural representation of fixture block in the utility model.
Figure 13 is the zoomed-in view marking A in Fig. 2.
Figure 14 is that in the utility model, guardrail body is in the structural representation drawing folded state in.
[detailed description of the invention]
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.
A kind of guardrail of the utility model, comprise the connection rod set 1 in X-type structure, be hinged by connection rod set 1 head and the tail of at least three groups or more than three groups and form guardrail body 2, described connection rod set 1 comprises the equal first connecting rod of length 11 and second connecting rod 12, be hinged in the middle part of described first connecting rod 11 and second connecting rod 12, first connecting rod 11 and second connecting rod 12 can around the corresponding rotations of its jointed shaft, or open or close, described guardrail body 2 is provided with and makes it keep deployed condition for locking guardrail body 2 or draw the locking device 3 of folded state in for making guardrail body 2 be transformed to by deployed condition, the utility model also comprises the guardrail block cloth 5 removably connected with guardrail body 2, described guardrail block cloth 5 is one-body molded.
Effect locking device 3, the state that first connecting rod 11 in a wherein connection rod set 1 and second connecting rod 12 are opened is destroyed, and then the first connecting rod 11 of each connection rod set 1 and second connecting rod 12 can be carried out interlock and close, with by guardrail body 2 and guardrail block cloth 5 wherein the heart synchronously to carry out gatherings folding; When guardrail body 2 and guardrail block cloth 5 launch by needs, only need effect locking device 3 that connected first connecting rod 11 and second connecting rod 12 are opened completely.
For in same connection rod set 1: the two ends of first connecting rod 11 are hinged with the end of the second connecting rod 12 in adjacent links group 1 respectively; Correspondingly, the two ends of second connecting rod 12 are then hinged with the end of the first connecting rod 11 in adjacent links group 1 respectively.
Articulated mounting 4 is provided with between described first connecting rod 11 and the end of second connecting rod 12, described articulated mounting 4 comprises hinged block 41 and hinging pin shaft 42, hinged block 41 is in J type, described hinged block 41 is provided with the hinged axis hole 43 be rotationally connected for hinging pin shaft 42, two pieces of hinged blocks 41 are hinged by hinging pin shaft 42, U-shaped structure, two pieces of hinged blocks be hinged 41 are connected with the end winding support of first connecting rod 11 and second connecting rod 12 respectively.
Described locking device 3 comprises the first cross bar 31, second cross bar 32, clamping block 33 and cross bar hinging pin shaft 35, described first cross bar 31 is provided with the first cross bar link 36 and the second hinged end 37, described second cross bar 32 is provided with the 3rd hinged end 38 and the 4th hinged end 39, described second hinged end 37, 4th hinged end 39 and clamping block 33 are articulated and connected by cross bar hinging pin shaft 35, described 4th hinged end 39 is provided with for overlapping the second hinged end 37 and for limiting the flanging 381 that clamping block 33 rotates around cross bar hinging pin shaft 35, described clamping block 33 one end is provided with for blocking the first cross bar 31 to make the first cross bar 31 and the latch hook 331 of the second cross bar 32 maintenance in yi word pattern, described cross bar hinging pin shaft 35 overlapping have makes latch hook 331 block the holddown spring 34 of the first cross bar 31 for pushing up pressure clamping block 33, when the first cross bar 31 and the second cross bar 32 are in yi word pattern, flanging 381 is close in the downside of the second hinged end 37 of the first cross bar 31, latch hook 331 correspondingly blocks the upside of the second hinged end 37, the first cross bar 31 and the second cross bar 32 is made to keep in yi word pattern structure, so that the first connecting rod be attached thereto 11 and second connecting rod 12 are strutted in X-type, and then guardrail body 2 is launched.
Described second hinged end 37 is between the 4th hinged end 39 and clamping block 33.
The middle part of described clamping block 33 and the second hinged end 37 and the 4th hinged end 39 are articulated and connected, and described first cross bar link 36 is hinged with first connecting rod 11, and described 3rd hinged end 38 is hinged with second connecting rod 12.
The top edge of described guardrail block cloth 5 is circumferentially provided with some engaging lugs 52, described engaging lug 52 is provided with junction button a53, the hinged block 41 being positioned at guardrail body 2 upper end is provided with the junction button b44 for being fastened and connected with junction button a53, described guardrail block cloth 5 is provided with for tying up at the structural bandage 51 of connection rod set 1X type, connecting band 54 is fixedly connected with bottom described guardrail block cloth 5, the other end of described connecting band 54 is fixedly connected with guardrail block cloth 5 side, and described connecting band 54 is provided with the fixture block 45 for being connected on the hinged block 41 being positioned at guardrail body 2 lower end.
Described fixture block 45 is provided with the fixture block connecting hole 451 for interting for connecting band 54, for for hinging pin shaft 42 greatly end penetrate snap in hole 452 with for clamping the clamping hole 453 that hinging pin shaft 42 neck is connected with guardrail body 2 lower end to make the bottom of guardrail block cloth 5, the described diameter snapping in hole 452 is greater than the diameter in clamping hole 453, described in snap in hole 452 with clamping hole 453 in Pear-Shaped structure.
Bandage 51 can adopt elastomeric material to make, often organize bandage 51 can form by two, its free end is equipped with VELCRO, two bandages by VELCRO can directly by the middle part of guardrail block cloth 5 with the X-type anatomical connectivity of connection rod set 1; Often organize bandage 51 in addition and also can adopt one, free end is provided with VELCRO, correspondingly in guardrail block cloth 5, is also provided with VELCRO bonding with it.
When guardrail block cloth 5 is taken off from guardrail body 2 by needs, correspondingly untie junction button a53 and junction button b54, bandage 51 and fixture block 45, then guardrail block cloth 5 one can be taken out, be convenient for people to clean it and install.
When needing the lock-out state changing first connecting rod 11 and the second cross bar 12, then need to use a lateral force, first clamping block 33 is stirred laterally, latch hook 331 is made to depart from the side of the first cross bar 31, then a downward power is used again, one cross bar swinging end 37 and the 4th hinged end 39 are rotated with cross bar hinging pin shaft 35, first connecting rod 11 in yi word pattern syndeton and second connecting rod 12 become V-shape, now the first cross bar link 36 and the 3rd hinged end 38 correspondingly pull first connecting rod 11 and second connecting rod 12, make it closed, the first connecting rod 11 of other group and second connecting rod 12 synchronizing closes, heart gathering is folding wherein finally to make guardrail body 2 and guardrail block cloth 5, in addition, when guardrail body 2 and guardrail block cloth 5 draw folding or expansion in, fixture block 45 carries out lifting action respectively, launches to pull 5 guarantee guardrail bodies 2 and guardrail block cloth 5 bottom guardrail block cloth or draws completing of jackknife action in.
According to the needs of product design, can adopt by the hinged guardrail body 2 formed of at least three group connection rod set 1, namely guardrail body 2 can be three structures, four sides structure or five structures.As shown in Figure 1, for adopting the guardrail body 2 in six groups of hinged formation six faces of connection rod set 1, the utility model is when unlocking locking device 3, must carry out successively according to above-mentioned two actions, otherwise can not unlock, adopt such locking device 3, there is certain foolproof function, particularly for the product that children use, avoid producing maloperation.Therefore, there is safe and reliable feature during use.
The utility model correspondingly connects guardrail block cloth 5, may be used for children guard bar, within it plays play or sleep for child; Also can use feature of the present utility model in addition, this structure be applied in tent product, particularly the tent product that uses of camping outdoors fan.And the utility model is not limited to the utilization of said two products, every product made based on the utility model structure, all in protection domain of the present utility model.
Claims (9)
1. a guardrail, it is characterized in that the connection rod set (1) comprised in X-type structure, be hinged by connection rod set (1) end of at least three groups or more than three groups and form guardrail body (2), described connection rod set (1) comprises first connecting rod (11) and second connecting rod (12), described first connecting rod (11) and second connecting rod (12) middle part are hinged, described guardrail body (2) is provided with and makes it keep deployed condition for locking guardrail body (2) or draw the locking device (3) of folded state in for making guardrail body (2) be transformed to by deployed condition.
2. by a kind of guardrail described in claim 1, it is characterized in that the two ends of described first connecting rod (11) are hinged with the end of second connecting rod (12) in adjacent links group (1) respectively, the two ends of described second connecting rod (12) are hinged with the end of first connecting rod (11) in adjacent links group (1) respectively.
3. by a kind of guardrail described in claim 2, articulated mounting (4) is provided with between the end that it is characterized in that described first connecting rod (11) and second connecting rod (12), described articulated mounting (4) comprises hinged block (41) and hinging pin shaft (42), described hinged block (41) is provided with the hinged axis hole (43) be rotationally connected for hinging pin shaft (42), and two pieces of hinged blocks be hinged (41) are connected with the end winding support of first connecting rod (11) and second connecting rod (12) respectively.
4. by a kind of guardrail described in claim 1, it is characterized in that described locking device (3) comprises the first cross bar (31), second cross bar (32), clamping block (33) and cross bar hinging pin shaft (35), described first cross bar (31) is provided with the first hinged end (36) and the second hinged end (37), described second cross bar (32) is provided with the 3rd hinged end (38) and the 4th hinged end (39), described second hinged end (37), 4th hinged end (39) and clamping block (33) are articulated and connected by cross bar hinging pin shaft (35), described 4th hinged end (39) is provided with for overlapping the second hinged end (37) and for limiting the flanging (381) that clamping block (33) rotates around cross bar hinging pin shaft (35), described clamping block (33) one end is provided with for blocking the first cross bar (31) to make the first cross bar (31) and the latch hook (331) of the second cross bar (32) maintenance in yi word pattern, the upper cover of described cross bar hinging pin shaft (35) has makes latch hook (331) block the holddown spring (34) of the first cross bar (31) for pushing up pressure clamping block (33).
5., by a kind of guardrail described in claim 4, it is characterized in that described second hinged end (37) is positioned between the 4th hinged end (39) and clamping block (33).
6. by a kind of guardrail described in claim 4, it is characterized in that the middle part of described clamping block (33) and the second hinged end (37) and the 4th hinged end (39) are articulated and connected, described first hinged end (36) is hinged with first connecting rod (11), and described 3rd hinged end (38) is hinged with second connecting rod (12).
7., by a kind of guardrail described in claim 3, characterized by further comprising the guardrail block cloth (5) removably connected with guardrail body (2), described guardrail block cloth (5) is one-body molded.
8. by a kind of guardrail described in claim 7, it is characterized in that the top edge of described guardrail block cloth (5) is circumferentially provided with some engaging lugs (52), described engaging lug (52) is provided with junction button a (53), the hinged block (41) being positioned at guardrail body (2) upper end is provided with the junction button b (44) for being fastened and connected with junction button a (53), described guardrail block cloth (5) is provided with for tying up at the structural bandage of connection rod set (1) X-type (51), described guardrail block cloth (5) bottom is fixedly connected with connecting band (54), the other end of described connecting band (54) is fixedly connected with guardrail block cloth (5) side, described connecting band (54) be provided with for be connected to be positioned at guardrail body (2) lower end hinged block (41) on fixture block (45).
9. by a kind of guardrail described in claim 8, it is characterized in that described fixture block (45) is provided with the fixture block connecting hole (451) for interting for connecting band (54), for for hinging pin shaft (42) greatly end penetrate snap in hole (452) with for clamping the clamping hole (453) that hinging pin shaft (42) neck is connected with guardrail body (2) lower end to make the bottom of guardrail block cloth (5), the described diameter snapping in hole (452) is greater than the diameter of clamping hole (453), described snap in hole (452) with clamping hole (453) in Pear-Shaped structure.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420614913.8U CN204199857U (en) | 2014-10-22 | 2014-10-22 | A kind of guardrail |
| PCT/CN2015/088455 WO2016062164A1 (en) | 2014-10-22 | 2015-08-29 | Protective rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420614913.8U CN204199857U (en) | 2014-10-22 | 2014-10-22 | A kind of guardrail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204199857U true CN204199857U (en) | 2015-03-11 |
Family
ID=52657828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420614913.8U Active CN204199857U (en) | 2014-10-22 | 2014-10-22 | A kind of guardrail |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204199857U (en) |
| WO (1) | WO2016062164A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016062164A1 (en) * | 2014-10-22 | 2016-04-28 | 宋立新 | Protective rail |
| CN109228994A (en) * | 2018-09-30 | 2019-01-18 | 浙江天成自控股份有限公司 | A kind of lorry sleeping berth guardrail lockable mechanism |
| CN112252816A (en) * | 2020-10-30 | 2021-01-22 | 深圳市巨鼎医疗设备有限公司 | Folding protection rod mechanism with lock catch structure |
| CN109228994B (en) * | 2018-09-30 | 2024-04-16 | 浙江天成自控股份有限公司 | Locking mechanism for sleeper guardrail of truck |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355004A (en) * | 2017-09-08 | 2017-11-17 | 中国农业科学院草原研究所 | Yurt and portable yurt |
| CN110115456A (en) * | 2019-05-29 | 2019-08-13 | 浙江群英车业有限公司 | A kind of safety door guardrail |
| US11696652B2 (en) | 2019-08-07 | 2023-07-11 | Wonderland Switzerland Ag | Foldable playard |
| US11559146B2 (en) | 2019-08-07 | 2023-01-24 | Wonderland Switzerland Ag | Foldable playard having X-frame assemblies and canopy cover |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4186454A (en) * | 1978-09-20 | 1980-02-05 | Cone Richard E | Portable playpen |
| CN2416181Y (en) * | 2000-03-16 | 2001-01-24 | 高青有限公司 | Joint element structure |
| CN203789547U (en) * | 2014-04-14 | 2014-08-27 | 宋立新 | Foldable bedrail |
| CN204199857U (en) * | 2014-10-22 | 2015-03-11 | 宋立新 | A kind of guardrail |
| CN104398070A (en) * | 2014-10-22 | 2015-03-11 | 宋立新 | Guardrail with novel structure |
-
2014
- 2014-10-22 CN CN201420614913.8U patent/CN204199857U/en active Active
-
2015
- 2015-08-29 WO PCT/CN2015/088455 patent/WO2016062164A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016062164A1 (en) * | 2014-10-22 | 2016-04-28 | 宋立新 | Protective rail |
| CN109228994A (en) * | 2018-09-30 | 2019-01-18 | 浙江天成自控股份有限公司 | A kind of lorry sleeping berth guardrail lockable mechanism |
| CN109228994B (en) * | 2018-09-30 | 2024-04-16 | 浙江天成自控股份有限公司 | Locking mechanism for sleeper guardrail of truck |
| CN112252816A (en) * | 2020-10-30 | 2021-01-22 | 深圳市巨鼎医疗设备有限公司 | Folding protection rod mechanism with lock catch structure |
| CN112252816B (en) * | 2020-10-30 | 2022-04-15 | 深圳市瑞利医疗科技有限责任公司 | Folding protection rod mechanism with lock catch structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016062164A1 (en) | 2016-04-28 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |