CN107758493B - A kind of self-locking safety suspension hook - Google Patents
A kind of self-locking safety suspension hook Download PDFInfo
- Publication number
- CN107758493B CN107758493B CN201710982772.3A CN201710982772A CN107758493B CN 107758493 B CN107758493 B CN 107758493B CN 201710982772 A CN201710982772 A CN 201710982772A CN 107758493 B CN107758493 B CN 107758493B
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- CN
- China
- Prior art keywords
- self
- hook body
- rotational cylinder
- suspension hook
- fixed
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
- B66C1/36—Crane hooks with means, e.g. spring-biased detents, for preventing inadvertent disengagement of loads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The present invention relates to a kind of self-locking safety suspension hooks, it includes fixed plate, the center of the lower surface of fixed plate is fixed with connecting shaft, the lower end of connecting shaft is fixedly connected with anti-rotational cylinder, limit rack gear A is provided on the side of anti-rotational cylinder, what anti-rotational cylinder and connecting shaft were slided is arranged in the sliding slot at hook body top center, limit rack gear B is provided on the medial surface of sliding slot above anti-rotational cylinder, rotating seat is set around the upper surface connecting shaft of anti-rotational cylinder, the upper surface of rotating seat is fixed with guide rod, in the pilot hole of the top sliding of guide rod being arranged on stop collar, compressed spring A is arranged between stop collar and rotating seat around guide rod, the center of anti-rotational cylinder lower surface is fixed with branch free bearing, push rod is hinged on branch free bearing, the lower end of push rod is hinged with connecting rod, the left end of connecting rod is fixedly connected with Bar；Total, the present invention has the advantages that reasonable in design, self-locking effect is good, safe and reliable.
Description
Technical field
The invention belongs to suspension hook technical fields, and in particular to a kind of self-locking safety suspension hook.
Background technique
In crane, generallys use suspension hook and hook the mode of weight and specifically moved operation, generally, in order to
Facilitate carry out all directions weight lifting, usually by the gib head of suspension hook be designed as can around the structure that vertical axis rotates freely,
The suspension hook of this structure is during lifting operation, if suspension hook rotates, passes around between suspension hook and boom top block group
Wirerope be easy to tussle together, and the weight being lifted also is rotated with suspension hook, it is easy to other objects
It collides, so, it in order to guarantee the safety of lifting operation, needs that locking device is installed on crane hook, to hang
It pretends to lock suspension hook during industry, prevents it from rotating, the spin locking dress installed in existing hook body
It sets to generally require and be locked by hand after hook body has hooked weight by manpower, and the spin locking and anticreep of suspension hook
Hook device is usually mutually indepedent setting, and it is lower to operate relatively cumbersome and safety；Therefore it provides it is a kind of it is reasonable in design,
The rotation of hook body and Anti-hook releasing device can be locked automatically in lifting operation, safe and reliable self-locking
Safety hook is very important.
Summary of the invention
It is an object of the invention to overcome the shortcomings of above-mentioned technology, to provide, one kind is reasonable in design, can hang
The rotation of hook body and Anti-hook releasing device are locked automatically when pretending industry, safe and reliable self-locking safety is hung
Hook.
The object of the present invention is achieved like this: a kind of self-locking safety suspension hook, it includes lifting yoke plate, and described two hang
It is provided with trunnion axis between dress yoke plate, pulley blocks, pulley blocks between the two lifting yoke plates are provided on the trunnion axis
Lower section be provided with crossbeam, the crossbeam center sliding is provided with sliding axle, and the top fixation of the sliding axle is limited
Position plate, is provided with compressed spring A, the lower end of the sliding axle between the lower surface of the limit plate and the upper surface of crossbeam
It is fixedly connected with anti-rotational cylinder, limiting tooth, the anti-rotational cylinder are provided on the lateral surface of the anti-rotational cylinder
Lower end surface on be connected with hook body, between the hook body and anti-rotational cylinder rotate connection, the suspension hook sheet
What the position on body close to top was slided is provided with fixed plate, and the setting of the fixed plate rotation lifts between yoke plates two,
Bar is hinged at position corresponding to the lower opening side of the hook body upper mounted plate, the top of the bar is solid
Surely it is connected with connecting rod, the top of the connecting rod is hinged on sliding block, and the setting of the sliding block sliding is in fixed plate lower surface
Horizontal concrete chute A in, horizontal concrete chute B is provided in the fixed plate above horizontal concrete chute A, in the horizontal concrete chute B
Sliding is provided with gag lever post, and the bottom end of the gag lever post is fixed on the upper surface of sliding block, the inside of the hook body
Position on face at bill is provided with guide groove, and that slides in the guide groove is provided with guide holder, the guiding
The upper surface of seat is fixed with limited post, is provided with compressed spring between the bottom face of the guide groove and the bottom face of guide holder
B。
The lower right sides of the limited post use ramp-like structures.
The cross sectional shape of the guide holder and guide groove is regular polygon structure.
Torsionspring is provided at the articulated position of the connecting rod and hook body.
Slot form between the cross sectional shape of the gag lever post and adjacent two limiting tooth matches.
The bar and connecting rod integrated setting.
The center of the bottom face of the guide holder is fixed with the pull rod extended on the outside of hook body.
The quantity of the compressed spring A is no less than 4 and is symmetrically and evenly distributed around sliding axle.
Beneficial effects of the present invention: the following table for being connected to anti-rotational cylinder of the upper end rotation of hook body in the present invention
Face, and the upper surface of anti-rotational cylinder is fixedly connected on the lower end of sliding axle, sliding axle can move up and down but not relative to crossbeam
It can rotate freely, hook body can be moved up and down relative to fixed plate, and fixed plate can also be driven same relative to lifting yoke plate
Step rotation, when being hung in hook body without weight, under the action of compressed spring A, hook body position for crossbeam
Extreme position thereon, at this point, sliding block and gag lever post are located at the left end of horizontal concrete chute A and horizontal concrete chute B, hook body
Fixed plate can be driven to rotate freely, when lifting rope is hanging in hook body, under the gravity of lifting rope and weight, suspension hook
Ontology drives anti-rotational cylinder and sliding axle to move down, since the hinged shaft position of connecting rod and bar in hook body is opposite
It is moved down in fixed plate, so that sliding block and gag lever post move right along horizontal concrete chute A and horizontal concrete chute B respectively, meanwhile,
Bar and connecting rod are rotated clockwise around its articulated shaft, until when hook body is located at its lower limit position for crossbeam,
At this point, gag lever post is just caught between adjacent two limiting tooth, and the end of bar is placed exactly in the hook of limited post and hook body
Between point, the cooperation of gag lever post and limit tooth socket can prevent hook body from rotating during lifting operation, and keep off
Bar can prevent lifting rope from breaking off relations；Total, the present invention has smart structural design, can be in lifting operation automatically to hook body
Rotation and Anti-hook releasing device locked, safe and reliable advantage.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of self-locking safety suspension hook of the present invention.
Fig. 2 is a kind of partial structural diagram of self-locking safety suspension hook of the present invention.
In figure: 1, lifting yoke plate 2, trunnion axis 3, pulley blocks 4, limit plate 5, sliding axle 6, compressed spring A
7, anti-rotational cylinder 8, limiting tooth 9, fixed plate 10, hook body 11, bar 12, limited post 13, torsion bullet
Spring 14, connecting rod 15, sliding block 16, horizontal concrete chute A 17, gag lever post 18, horizontal concrete chute B 19, crossbeam 20, guiding
Slot 21, guide holder 22, compressed spring B 23, pull rod.
Specific embodiment
Explanation that the present invention will be further described with reference to the accompanying drawing.
Embodiment 1
As depicted in figs. 1 and 2, a kind of self-locking safety suspension hook, it includes lifting yoke plate 1, the described two liftings yoke plates 1 it
Between be provided with trunnion axis 2, pulley blocks 3 are provided on the trunnion axis 2, between the two lifting yoke plates 1 under pulley blocks 3
Side is provided with crossbeam 19, and 19 center of the crossbeam sliding is provided with sliding axle 5, and the top of the sliding axle 5 is fixed with
Limit plate 4 is provided with compressed spring A6, the sliding between the lower surface of the limit plate 4 and the upper surface of crossbeam 19
The lower end of axis 5 is fixedly connected with anti-rotational cylinder 7, and limiting tooth 8 is provided on the lateral surface of the anti-rotational cylinder 7, described
Anti-rotational cylinder 7 lower end surface on be connected with hook body 10, rotated between the hook body 10 and anti-rotational cylinder 7
It connects, what the position in the hook body 10 close to top was slided is provided with fixed plate 9, what the fixed plate 9 rotated
Setting is hinged at position corresponding to the lower opening side of 10 upper mounted plate 9 of hook body between two lifting yoke plates 1
There is bar 11, the top of the bar 11 is fixedly connected with connecting rod 14, and the top of the connecting rod 14 is hinged on sliding block 15,
What the sliding block 15 slided is arranged in the horizontal concrete chute A16 of 9 lower surface of fixed plate, horizontal concrete chute in the fixed plate 9
Horizontal concrete chute B18 is provided with above A16, that slides in the horizontal concrete chute B18 is provided with gag lever post 17, the limit
The bottom end of bar 17 is fixed on the upper surface of sliding block 15, the position setting on the medial surface of the hook body 10 at close bill
There is guide groove 20, that slides in the guide groove 20 is provided with guide holder 21, and the upper surface of the guide holder 21 is fixed with
Limited post 12 is provided with compressed spring B22 between the bottom face of the guide groove 20 and the bottom face of guide holder 21.
The lower surface for being connected to anti-rotational cylinder 7 of the upper end rotation of hook body 10 in the present invention, and anti-rotational cylinder 7
Upper surface be fixedly connected on the lower end of sliding axle 5, sliding axle 5 can be moved up and down relative to crossbeam 19 and cannot but be rotated freely,
Hook body 10 can be moved up and down relative to fixed plate 9, can also drive fixed plate 9 relative to lifting 1 synchronous rotary of yoke plate,
When being hung in hook body 10 without weight, under the action of compressed spring A6, the position for crossbeam 19 of hook body 10
Extreme position thereon, at this point, sliding block 15 and gag lever post 17 are located at the left end of horizontal concrete chute A16 and horizontal concrete chute B18,
Hook body 10 can drive fixed plate 9 to rotate freely, when lifting rope to be hanging in hook body 10, in lifting rope and the weight of weight
Under power effect, hook body 10 drives anti-rotational cylinder 7 and sliding axle 5 to move down, since connecting rod 14 and bar 11 are in suspension hook
Hinged shaft position on ontology 10 is moved down relative to fixed plate 9, so that sliding block 15 and gag lever post 17 are respectively along level
Sliding slot A16 and horizontal concrete chute B18 move right, meanwhile, bar 11 and connecting rod 14 are rotated clockwise around its articulated shaft, until suspension hook
Ontology 10 for crossbeam 19 be located at its lower limit position when, at this point, gag lever post 17 be just caught in adjacent two limiting tooth 8 it
Between, and the end of bar 11 is placed exactly between limited post 12 and the bill of hook body 10, gag lever post 17 and 8 tooth socket of limiting tooth
Cooperation can prevent hook body 10 from rotating during lifting operation, and bar 11 can prevent lifting rope from breaking off relations；
Total, the present invention has smart structural design, can be in lifting operation automatically to the rotation of hook body and Anti-hook releasing device
It is locked, safe and reliable advantage.
Embodiment 2
As depicted in figs. 1 and 2, a kind of self-locking safety suspension hook, it includes lifting yoke plate 1, the described two liftings yoke plates 1 it
Between be provided with trunnion axis 2, pulley blocks 3 are provided on the trunnion axis 2, between the two lifting yoke plates 1 under pulley blocks 3
Side is provided with crossbeam 19, and 19 center of the crossbeam sliding is provided with sliding axle 5, and the top of the sliding axle 5 is fixed with
Limit plate 4 is provided with compressed spring A6, the sliding between the lower surface of the limit plate 4 and the upper surface of crossbeam 19
The lower end of axis 5 is fixedly connected with anti-rotational cylinder 7, and limiting tooth 8 is provided on the lateral surface of the anti-rotational cylinder 7, described
Anti-rotational cylinder 7 lower end surface on be connected with hook body 10, rotated between the hook body 10 and anti-rotational cylinder 7
It connects, what the position in the hook body 10 close to top was slided is provided with fixed plate 9, what the fixed plate 9 rotated
Setting is hinged at position corresponding to the lower opening side of 10 upper mounted plate 9 of hook body between two lifting yoke plates 1
There is bar 11, the top of the bar 11 is fixedly connected with connecting rod 14, and the top of the connecting rod 14 is hinged on sliding block 15,
What the sliding block 15 slided is arranged in the horizontal concrete chute A16 of 9 lower surface of fixed plate, horizontal concrete chute in the fixed plate 9
Horizontal concrete chute B18 is provided with above A16, that slides in the horizontal concrete chute B18 is provided with gag lever post 17, the limit
The bottom end of bar 17 is fixed on the upper surface of sliding block 15, the position setting on the medial surface of the hook body 10 at close bill
There is guide groove 20, that slides in the guide groove 20 is provided with guide holder 21, and the upper surface of the guide holder 21 is fixed with
Limited post 12 is provided with compressed spring B22 between the bottom face of the guide groove 20 and the bottom face of guide holder 21, described
The lower right sides of limited post 12 use ramp-like structures, and the cross sectional shape of the guide holder 21 and guide groove 20 is positive polygon
It is provided with torsionspring 13 at the articulated position of shape structure, the connecting rod 14 and hook body 10, the gag lever post 17
Slot form between cross sectional shape and adjacent two limiting tooth 8 matches, 14 integrated setting of the bar 11 and connecting rod, institute
The center of the bottom face for the guide holder 21 stated is fixed with the pull rod 23 for extending to 10 outside of hook body, the compressed spring A6
Quantity be no less than 4 and be symmetrically and evenly distributed around sliding axle 5.
The lower surface for being connected to anti-rotational cylinder 7 of the upper end rotation of hook body 10 in the present invention, and anti-rotational cylinder 7
Upper surface be fixedly connected on the lower end of sliding axle 5, sliding axle 5 can be moved up and down relative to crossbeam 19 and cannot but be rotated freely,
Hook body 10 can be moved up and down relative to fixed plate 9, can also drive fixed plate 9 relative to lifting 1 synchronous rotary of yoke plate,
When being hung in hook body 10 without weight, under the action of compressed spring A6, the position for crossbeam 19 of hook body 10
Extreme position thereon, at this point, sliding block 15 and gag lever post 17 are located at the left end of horizontal concrete chute A16 and horizontal concrete chute B18,
Hook body 10 can drive fixed plate 9 to rotate freely, when lifting rope to be hanging in hook body 10, in lifting rope and the weight of weight
Under power effect, hook body 10 drives anti-rotational cylinder 7 and sliding axle 5 to move down, since connecting rod 14 and bar 11 are in suspension hook
Hinged shaft position on ontology 10 is moved down relative to fixed plate 9, so that sliding block 15 and gag lever post 17 are respectively along level
Sliding slot A16 and horizontal concrete chute B18 move right, meanwhile, bar 11 and connecting rod 14 are rotated clockwise around its articulated shaft, until suspension hook
Ontology 10 for crossbeam 19 be located at its lower limit position when, at this point, gag lever post 17 be just caught in adjacent two limiting tooth 8 it
Between, and the end of bar 11 is placed exactly between limited post 12 and the bill of hook body 10, gag lever post 17 and 8 tooth socket of limiting tooth
Cooperation can prevent hook body 10 from rotating during lifting operation, and bar 11 can prevent lifting rope from breaking off relations；
The lower right sides of limited post 12 use ramp-like structures, and bar 11 is facilitated smoothly to be fastened on the left side of limited post 12；Guide holder
21 and the cross sectional shape of guide groove 20 be regular polygon structure, prevent guide holder 21 from rotating in guide groove 20；Connecting rod
14 be provided with torsionspring 13 at the articulated position of hook body 10, automatically reset convenient for bar 11；The section of gag lever post 17
Slot form between shape and adjacent two limiting tooth 8 matches, and prevents gag lever post 17 from slipping between limiting tooth 8；Guide holder 21
The center of bottom face be fixed with the pull rod 23 for extending to the outside of hook body 10, limited post can be released by pulling downward on pull rod 23
The limitation of 12 pairs of bars 11；Total, the present invention has smart structural design, can be in lifting operation automatically to hook body
Rotation and Anti-hook releasing device locked, safe and reliable advantage.
Claims (8)
1. a kind of self-locking safety suspension hook, it includes two pieces of lifting yoke plates disposed in parallel, it is characterised in that: two liftings
It is provided with trunnion axis between yoke plate, pulley blocks are provided on the trunnion axis, pulley blocks between the two lifting yoke plates
Lower section is provided with crossbeam, and the crossbeam center sliding is provided with sliding axle, and the top of the sliding axle is fixed with limit
Plate, is provided with compressed spring A between the lower surface of the limit plate and the upper surface of crossbeam, the lower end of the sliding axle is solid
Surely it is connected with anti-rotational cylinder, limiting tooth is provided on the lateral surface of the anti-rotational cylinder, the anti-rotational cylinder
It is connected with hook body on lower end surface, connection, the hook body are rotated between the hook body and anti-rotational cylinder
What the upper position close to top was slided is provided with fixed plate, and the setting of the fixed plate rotation is between two lifting yoke plates, institute
Bar is hinged at position corresponding to the lower opening side for the hook body upper mounted plate stated, the top of the bar is fixed
It is connected with connecting rod, the top of the connecting rod is hinged on sliding block, and what the sliding block slided is arranged in fixed plate lower surface
In horizontal concrete chute A, horizontal concrete chute B is provided in the fixed plate above horizontal concrete chute A, is slided in the horizontal concrete chute B
Dynamic is provided with gag lever post, and the bottom end of the gag lever post is fixed on the upper surface of sliding block, the medial surface of the hook body
The upper position at bill is provided with guide groove, and that slides in the guide groove is provided with guide holder, the guide holder
Upper surface be fixed with limited post, compressed spring B is provided between the bottom face of the guide groove and the bottom face of guide holder.
2. a kind of self-locking safety suspension hook according to claim 1, it is characterised in that: the lower right sides of the limited post
Using ramp-like structures.
3. a kind of self-locking safety suspension hook according to claim 1, it is characterised in that: the guide holder and guide groove
Cross sectional shape is regular polygon structure.
4. a kind of self-locking safety suspension hook according to claim 1, it is characterised in that: the connecting rod and hook body
Torsionspring is provided at articulated position.
5. a kind of self-locking safety suspension hook according to claim 1, it is characterised in that: the cross sectional shape of the gag lever post
Slot form between adjacent two limiting tooth matches.
6. a kind of self-locking safety suspension hook according to claim 1, it is characterised in that: the bar and connecting rod integration
Setting.
7. a kind of self-locking safety suspension hook according to claim 1, it is characterised in that: the bottom face of the guide holder
Center is fixed with the pull rod extended on the outside of hook body.
8. a kind of self-locking safety suspension hook according to claim 1, it is characterised in that: the quantity of the compressed spring A
It no less than 4 and is symmetrically and evenly distributed around sliding axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710982772.3A CN107758493B (en) | 2017-10-20 | 2017-10-20 | A kind of self-locking safety suspension hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710982772.3A CN107758493B (en) | 2017-10-20 | 2017-10-20 | A kind of self-locking safety suspension hook |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107758493A CN107758493A (en) | 2018-03-06 |
| CN107758493B true CN107758493B (en) | 2019-04-16 |
Family
ID=61268954
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710982772.3A Active CN107758493B (en) | 2017-10-20 | 2017-10-20 | A kind of self-locking safety suspension hook |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107758493B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282538B (en) * | 2019-08-13 | 2024-06-18 | 大同泰瑞集团建设有限公司 | Portable safety lifting hook |
| CN110642141B (en) * | 2019-08-30 | 2020-12-25 | 上海聚丰热镀锌有限公司 | Safety lifting hook and application method thereof |
| CN114955819A (en) * | 2022-04-20 | 2022-08-30 | 江苏科技大学 | A water elastic stability structure for container ship loop wheel machine |
| CN115321404A (en) * | 2022-08-31 | 2022-11-11 | 安徽省中冶重工机械有限公司 | Universal multifunctional safety pulley special for piling ship |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2634402A1 (en) * | 1975-07-31 | 1977-02-10 | Nippon Kijuki Seisakusho Kk | CRANE HOOK DEVICE |
| CN2218170Y (en) * | 1994-11-23 | 1996-01-24 | 钟宗勇 | Hook |
| CN201670650U (en) * | 2010-05-07 | 2010-12-15 | 江阴真良机械有限公司 | Rotary suspension hook with positioning device |
| CN203359775U (en) * | 2013-07-22 | 2013-12-25 | 中联重科股份有限公司 | Lifting hook and crane using same |
| CN203461688U (en) * | 2013-09-11 | 2014-03-05 | 中联重科股份有限公司 | Lifting hook and crane using same |
| CN205257781U (en) * | 2015-12-16 | 2016-05-25 | 芜湖市特种设备监督检验中心 | Automatic locking device of crane hook |
| CN205772831U (en) * | 2016-05-31 | 2016-12-07 | 宝山钢铁股份有限公司 | A kind of travelling crane hook gib head rotational locking device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3303951B2 (en) * | 1994-10-11 | 2002-07-22 | 川村工業株式会社 | Suspension block with automatic swivel hook |
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2017
- 2017-10-20 CN CN201710982772.3A patent/CN107758493B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2634402A1 (en) * | 1975-07-31 | 1977-02-10 | Nippon Kijuki Seisakusho Kk | CRANE HOOK DEVICE |
| CN2218170Y (en) * | 1994-11-23 | 1996-01-24 | 钟宗勇 | Hook |
| CN201670650U (en) * | 2010-05-07 | 2010-12-15 | 江阴真良机械有限公司 | Rotary suspension hook with positioning device |
| CN203359775U (en) * | 2013-07-22 | 2013-12-25 | 中联重科股份有限公司 | Lifting hook and crane using same |
| CN203461688U (en) * | 2013-09-11 | 2014-03-05 | 中联重科股份有限公司 | Lifting hook and crane using same |
| CN205257781U (en) * | 2015-12-16 | 2016-05-25 | 芜湖市特种设备监督检验中心 | Automatic locking device of crane hook |
| CN205772831U (en) * | 2016-05-31 | 2016-12-07 | 宝山钢铁股份有限公司 | A kind of travelling crane hook gib head rotational locking device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107758493A (en) | 2018-03-06 |
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