CN106629286B - It falls and tests tower - Google Patents
It falls and tests tower Download PDFInfo
- Publication number
- CN106629286B CN106629286B CN201611149796.2A CN201611149796A CN106629286B CN 106629286 B CN106629286 B CN 106629286B CN 201611149796 A CN201611149796 A CN 201611149796A CN 106629286 B CN106629286 B CN 106629286B
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- China
- Prior art keywords
- oil cylinder
- carriage
- hook
- uncoupling rigging
- piston
- 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.)
- Expired - Fee Related
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- 230000005484 gravity Effects 0.000 claims abstract description 8
- 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 8
- 230000002457 bidirectional effect Effects 0.000 claims description 6
- 238000005253 cladding Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 238000005086 pumping Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
It falls the present invention provides one kind and tests tower, including pedestal, push oil cylinder, push car body, buffer board, pylon, pouring weight, test frame, guide shoe, uncoupling rigging, uncoupling rigging guiding device, guide rail, boom hoist cable, lifting device, pumping plant, the safety tongs and buffer for being applicable to different trips difference test quality fall test, its main feature is that: a) uncoupling rigging remotely can be discharged or be resetted, or carriage is engaged or disengaged, it is not required to very important person's Proximity operation.Safety pin is used, so safety is able to guarantee and operating efficiency is higher.B) it is tested buffer and uses hydraulic carrying, be close to or far from carriage position of centre of gravity, it is not necessary to use manpower transport, be guaranteed safely.C) it is provided with brake apparatus on guiding device, solves when external weights release, hanging steel rope loose the problems such as being disengaged from the groove.Pumping plant and guiding device are servo-actuated, make the stroke of carriage without limitation.
Description
Technical field
The present invention relates to the experimental rigs in elevator safety field, and in particular, to the test tower for falling is commonly used in
Test buffer or safety tongs.
Background technique
Test tower is used to simulate the elevator free falling for loading load, is applicable to the safety of a variety of speed and a variety of quality
Pincers or buffer fall test.
Current test tower generally by pylon, lifting device, tripping gear, the carriage equipped with load, guide rail and is tested
Device (such as buffer) composition.In use, tripping gear is using Remote triggering and the artificial working method close to reset；
Tested device is removed using manpower to weight, and safety is poor；If it is larger to test quality, when external weights release, suspension
The energy stored in wirerope will lead to tripping gear rebound, lead to the failures such as hanging steel rope is loose, is disengaged from the groove.
Summary of the invention
For the defects in the prior art, it falls the object of the present invention is to provide one kind and tests tower.
The one kind provided according to the present invention, which is fallen, tests tower, including pedestal, stand, guide rail, lifting device, carriage, unhook
Mechanism, wirerope, push car body, push oil cylinder, buffer board；
It is provided with stand on pedestal, guide rail is equipped in stand, lifting device is equipped at the top of stand, energy is equipped on the inside of guide rail
The carriage enough moved along the rail can load one or more pouring weights in carriage；
Coupled between lifting device and carriage with uncoupling rigging, lifting device is coupled with uncoupling rigging using wirerope；
Stand bottom is equipped with the push car body that can be run in the horizontal direction, and push car body can be driven by push oil cylinder and be passed through
It crosses below the center of gravity of carriage；
Stand bottom is provided with buffer board.
Preferably, the uncoupling rigging includes side plate, first axle, unhook oil cylinder, link block, connecting rod, hook, load-bearing axle；
First axle, unhook oil cylinder, link block, connecting rod, hook are provided between two blocks of side plates；
First axle connects lifting device by wirerope；
The piston of unhook oil cylinder and one end of link block connect, one end of hinged two connecting rods of the other end of link block, point
It is not denoted as connecting rod A, connecting rod B；The hinged hook of the other end of connecting rod A, another hinged hook of the other end of connecting rod B；
Front is linked up with by load-bearing axle hinged side, can be rotated around load-bearing axle；
Semicircle is arranged in the front end of hook, and two hooks can merge the third axis of cladding carriage；
Hook, connecting rod, link block and unhook oil cylinder piston form four-bar mechanism, the piston of unhook oil cylinder being capable of band
Dynamic opening of hook or closure；After linking up with closure, two connecting rods are in horizontal position in horizontal position or substantially.
Preferably, the outside of the side plate is equipped with safety cylinder, and the piston of safety cylinder connects safety pin, and side plate is provided with
With the via hole of safety pin Corresponding matching, when uncoupling rigging is closed, safety pin can extend into via hole gear under the driving of safety cylinder
The firmly piston of unhook oil cylinder prevents the piston of unhook oil cylinder from retracting.
Preferably, including guiding device；
The guiding between carriage and lifting device, for uncoupling rigging is arranged in guiding device；
Brake apparatus is provided on the guiding device；Brake apparatus can be triggered and be answered with remote controlled manner
Position, or using triggering manually and reset.
Preferably, two hooks of the uncoupling rigging, the cavity that the two hooks are formed when being closed are a cylinder
An or essentially cylinder；Link up with the third axis for clamping carriage.
Preferably, the uncoupling rigging includes the second axis, and the second axis is used to control the open angle of hook and hook closes
It is limited when conjunction.
Preferably, the second axis is fastenedly connected side plate, is located between two hooks, and is located at piston and the connection of unhook oil cylinder
The lower section of block；
When linking up with closure, the piston of unhook oil cylinder pushes link block tight against firmly the second axis.
Preferably, including oil cylinder hydraulic control system；Oil cylinder hydraulic control system uses bidirectional hydraulic lock and 3-position 4-way
Valve control.
Compared with prior art, the present invention have it is following the utility model has the advantages that
It present invention can be suitably applied to falling test in safety tongs and buffer for different trips difference test quality, feature
Be: a) uncoupling rigging is acted using hydraulic-driven four-bar mechanism, remotely can be discharged or be resetted, or engage or disengage carriage,
It is not required to very important person's Proximity operation.The dead-centre position that four-bar mechanism utilizes connecting rod 24 is linked up with, using safety pin 19 and hydraulic-driven system
System uses bidirectional hydraulic lock 34 and three-position four-way valve 35, so safety is able to guarantee and operating efficiency is higher.B) it is tested buffer
Using hydraulic carrying, it is close to or far from 32 position of centre of gravity of carriage, it is not necessary to use manpower transport, be guaranteed safely.C) it leads
It is provided with brake apparatus 12 on device 11, solves when external weights release, hanging steel rope loose the problems such as being disengaged from the groove.Liquid
Press pump station 29 and guiding device 11 are servo-actuated, make the stroke of carriage 32 without limitation.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is that a kind of fall provided by the invention tests the overall pattern of tower；
Fig. 2 is uncoupling rigging overall pattern；
Schematic diagram when Fig. 3 is uncoupling rigging release (opening)；
Fig. 4 is schematic diagram when uncoupling rigging is closed；
Fig. 5 is anti-bouncing device schematic diagram；
Fig. 6 is 26 control loop schematic diagram of unhook oil cylinder；
Fig. 7 is 18 control loop schematic diagram of safety cylinder.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection scope.
As shown in Figures 1 to 5, it falls for one kind provided by the invention and tests tower, including pedestal 1, stand is set on pedestal 1
6, it is equipped with guide rail 13 in stand 6, is equipped with lifting device 15 at the top of stand 6, being equipped on the inside of guide rail 13 can move along guide rail 13
Carriage 32, carriage 32 is interior to be equipped with a certain number of pouring weights 7, and the quantity of pouring weight 7 can increase and decrease as needed.Lifting device 15 and carriage
Coupled between 32 with uncoupling rigging 10, lifting device 15 is coupled with uncoupling rigging 10 using wirerope 14.6 bottom of stand is equipped with can
The push car body 3 run in the horizontal direction, push car body 3 can be driven by push oil cylinder 2 to the center of gravity far from carriage 32.
6 bottom of stand is provided with buffer board 5.Electrical control cabinet 16 is also shown in Fig. 1, electrical control cabinet 16 realizes mechanical structure
Control function.
The matrix of uncoupling rigging 10 is made of 2 side plates 20 and bolt 36, and safety cylinder 18, peace are arranged on the outside of side plate 20
The complete 18 piston first line of a couplet of oil cylinder is connected to safety pin 19.The corresponding position of side plate 20 is provided with the via hole 31 of safety pin 19, at two
First axle 21, unhook oil cylinder 26, link block 25, connecting rod 24, hook 22, load-bearing axle 17 are provided between side plate 20.It is hung in two pieces
22 middle position of hook is provided with the second axis 28, and first axle 21 is connect with hoisting mechanism 15, and unhook oil cylinder 26 is fixed into side plate 20
One, hook 22 are limited when opening by the second axis 28, prevent connecting rod 24 and hook 22 from forming dead point, hook 22 can be around load-bearing axle 17
Rotation, the piston for linking up with 22, connecting rod 24, link block 25 and unhook oil cylinder 26 form four-bar mechanism, the work of unhook oil cylinder 26
Plug can drive 22 open or closes of hook.After hook 22 is closed, two pieces connecting rod 24 is in horizontal position or the contact of link block 25 the
The top of two axis 28.
Guiding device 11 is arranged between carriage 32 and lifting device 15, for the guiding of uncoupling rigging 10, fills in guiding
It sets and is provided with brake apparatus 12, guide shoe 37, hydraulic power unit 29 on 11, guiding device 11 is arranged between guide rail 13, carriage 32
Top.For the test tower of small load-carrying and small stroke, it can be not provided with brake apparatus 12, hydraulic power unit 29 can also be arranged on ground
Face.
It falls and tests tower specific operation process are as follows: first add suitable pouring weight 7 in carriage 32, then make uncoupling rigging 10
Closure, i.e., after hook 22 is closed, two pieces connecting rod 24 contacts the top of the second axis 28, Safety oil in horizontal position or link block 25
Cylinder 18 drives safety pin 19, on the top of connecting rod 24, to operate lifting device 15 with carriage 32 by the gear of via hole 31 on side plate 20
The position for rising to requirement, places tested buffer 4 on push car body 3, and tested buffer 4 is sent to by operation push oil cylinder 2
Below the center of gravity of carriage 32, after 12 execution of brake apparatus on guiding device 11 is acted to clamp or be clamped in guide rail 13, so
Safety pin 19 is detached from side plate 20 afterwards, uncoupling rigging 10 is opened, the free falling under the effect of gravity of carriage 32, is hit tested slow
Device 4 is rushed, drop event is completed at this time.When reset, the brake apparatus 12 on guiding device 11 is open and disengaged from guide rail 13, is operated
Lifting device 15, by uncoupling rigging 10 close to being arranged on the third axis 23 at the top of carriage 32, after uncoupling rigging 10 is closed, make
Hook 22 in uncoupling rigging 10 embraces third axis 23, and safe operation oil cylinder 18 drives safety pin 19 to block connecting rod 24, grasps at this time
Make lifting device 15, carriage 32 promoted, rear operation push oil cylinder 2, push car body 3 with tested buffer 4 far from carriage 32,
Test process terminates.
More specifically, the both ends of the connecting rod 24 are connect with hook 22, link block 25 respectively, when hook 22 is located at closing
Connecting rod 24 is in horizontal slightly down position, guarantees self-locking.Even block block 25 is connect with the piston rod of unhook oil cylinder 26, unhook oil cylinder 26
It is fixed between the cavity of the formation of two pieces side plate 20.The sky of two side plates 20 formation is arranged in hook 22, connecting rod 24, link block 25
Between chamber, when link block 25 moves up and down, hook 22 be formed by round hole it is openable or closure.Second is equipped on side plate
Axis 28, setting prevent hook 22 and connecting rod 24 from forming dead point in 22 inside of two pieces hook for linking up with the angle of 22 openings.When
Connecting rod 24 when in the horizontal position, by safety pin be inserted into side plate 20 after can anti-26 piston of locking hook oil cylinder retract, to prevent from hanging
Hook 22 is opened.The carriage 32 includes the frame 8 of surrounding, further includes third axis 23, pouring weight 7, and increase and decrease 7 quantity of pouring weight can control
The total weight of carriage 32.Carriage 32 can be moved by guide shoe 9 along guide rail 13.The uncoupling rigging 10, top pass through axis 21
It is connect with lifting device 15, lower part is connect by third axis 23 with carriage 32.The carrying mechanism of the tested buffer 4 is by pushing
Oil cylinder 2, push car body 3, buffer board 5 form, by push oil cylinder 2 is flexible can be by tested buffer 4 close to or away from carriage
32 center of gravity.The guiding device 11 includes uncoupling rigging 10, brake apparatus 12, guiding mechanism 37, hydraulic power unit 29.It is logical
Carriage 32 can be disengaged or combine by crossing uncoupling rigging 10.Hydraulic power unit 29 is used to provide power to unhook oil cylinder 26, fills with guiding
It is servo-actuated to set 11.Brake apparatus 12 is used for guiding device 11 is fixed or is detached from guide rail 13.The effect of brake apparatus 12 is consumption weight
The energy being in steel rope system is stored when object discharges.The hydraulic power unit 29 uses bidirectional hydraulic lock 34, three-position four-way valve
35 controls.When not working, the two-way hydraulic fluid port of unhook oil cylinder 26 is in closed state, i.e., break off relations machine in no outer power drive
Structure 10 is located at initial invariant state.
In Fig. 6, Fig. 7, bidirectional hydraulic lock 34, three-position four-way valve 35 are shown.
The effect of bidirectional hydraulic lock 34: its principle is that the pressure of other side's oil circuit is taken to act on guide using two hydraulic control one-way valves
Oil, when a square tube road does not have pressure, another party's pipeline is simultaneously closed off, and is with effect here, when hydraulic power loses,
The oil inlet and oil outlet of unhook oil cylinder 26 and safety cylinder 18 in uncoupling rigging 10 are turned off, it is ensured that uncoupling rigging 10
Middle hook 22 keeps original position, prevents from malfunctioning.
The effect of three-position four-way valve 35: when three-position four-way valve 35 does not control signal, spool is centrally located, at this time
Closed state is in by the oil inlet and oil outlet of three-position four-way valve.Prevent uncoupling rigging 10 from malfunctioning.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (7)
1. one kind, which is fallen, tests tower, which is characterized in that including pedestal (1), stand (6), guide rail (13), lifting device (15), sedan-chair
Compartment (32), uncoupling rigging (10), wirerope (14), push car body (3), push oil cylinder (2), buffer board (5)；
It is provided on pedestal (1) stand (6), is equipped with guide rail (13) in stand (6), be equipped with lifting device (15) at the top of stand (6),
It is equipped with the carriage (32) that can be moved along guide rail (13) on the inside of guide rail (13), one or more weights can be loaded in carriage (32)
Block (7)；
Coupled between lifting device (15) and carriage (32) with uncoupling rigging (10), lifting device (15) is adopted with uncoupling rigging (10)
Coupled with wirerope (14)；
Stand (6) bottom is equipped with the push car body (3) that can be run in the horizontal direction, and push car body (3) can be by push oil cylinder
(2) it drives below the center of gravity by carriage (32)；
Stand (6) bottom is provided with buffer board (5)；
Tower is tested in described falling, including guiding device (11)；
Guiding device (11) is arranged between carriage (32) and lifting device (15), is used for the guiding of uncoupling rigging (10)；
Brake apparatus (12) are provided on the guiding device (11)；Brake apparatus (12) can be touched with remote controlled manner
Hair and reset, or using triggering manually and reset.
2. according to claim 1 fall tests tower, which is characterized in that the uncoupling rigging (10) include side plate (20),
First axle (21), unhook oil cylinder (26), link block (25), connecting rod (24), hook (22), load-bearing axle (17)；
First axle (21), unhook oil cylinder (26), link block (25), connecting rod (24), hook are provided between two pieces of side plates (20)
(22)；
First axle (21) passes through wirerope (14) connection lifting device (15)；
The piston of unhook oil cylinder (26) is connect with one end of link block (25), hinged two connecting rods of the other end of link block (25)
(24) one end is denoted as connecting rod A, connecting rod B respectively；The hinged hook (22) of the other end of connecting rod A, the other end hinge of connecting rod B
Connect another hook (22)；
(22) front is linked up with by load-bearing axle (17) hinged side (20), can be rotated around load-bearing axle (17)；
Semicircle is arranged in the front end for linking up with (22), and two hooks (22) can merge the third axis (23) of cladding carriage (32)；
The piston for linking up with (22), connecting rod (24), link block (25) and unhook oil cylinder (26) forms four-bar mechanism, unhook oil cylinder
(26) piston is able to drive hook (22) open or close；After hook (22) closure, two connecting rods (24) are in horizontal position
It or is substantially in horizontal position.
3. according to claim 2 fall tests tower, which is characterized in that the outside of the side plate (20) is equipped with safety cylinder
(18), the piston of safety cylinder (18) connects safety pin (19), and side plate (20) is provided with and the mistake of safety pin (19) Corresponding matching
Hole (31), when uncoupling rigging (10) is closed, safety pin (19) can extend into via hole (31) gear under the driving of safety cylinder (18)
The firmly piston of unhook oil cylinder (26) prevents the piston of unhook oil cylinder (26) from retracting.
4. according to claim 1 fall tests tower, which is characterized in that two hooks of the uncoupling rigging (10)
(22), the cavity formed when the two hook (22) closures is a cylinder or an essentially cylinder；It links up with (22)
For clamping the third axis (23) of carriage (32).
5. according to claim 2 fall tests tower, which is characterized in that the uncoupling rigging (10) includes the second axis
(28), it is limited when the second axis (28) is used to control the open angle and hook (22) closure of hook (22).
6. according to claim 5 fall tests tower, which is characterized in that the second axis (28) is fastenedly connected side plate (20), position
Between two hooks (22), and it is located at the piston of unhook oil cylinder (26) and the lower section of link block (25)；
When hook (22) closure, the piston of unhook oil cylinder (26) pushes link block (25) tight against firmly the second axis (28).
7. according to claim 1 fall tests tower, which is characterized in that including oil cylinder hydraulic control system；Oil cylinder hydraulic
Control system is controlled using bidirectional hydraulic lock (34) and three-position four-way valve (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611149796.2A CN106629286B (en) | 2016-12-13 | 2016-12-13 | It falls and tests tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611149796.2A CN106629286B (en) | 2016-12-13 | 2016-12-13 | It falls and tests tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106629286A CN106629286A (en) | 2017-05-10 |
| CN106629286B true CN106629286B (en) | 2019-11-15 |
Family
ID=58824692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611149796.2A Expired - Fee Related CN106629286B (en) | 2016-12-13 | 2016-12-13 | It falls and tests tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106629286B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207968A (en) * | 2019-06-21 | 2019-09-06 | 安徽九纲机电有限公司 | A kind of hydraulic buffer of elevator test tower assembly line |
| CN110980462B (en) * | 2019-12-12 | 2021-05-11 | 太仓韬信信息科技有限公司 | Elevator hydraulic buffer test tower assembly line |
| CN113044689B (en) * | 2021-03-09 | 2024-04-09 | 河北东方富达机械有限公司 | Unhooking device for elevator safety component test |
| CN113511569B (en) * | 2021-04-15 | 2023-01-24 | 中船第九设计研究院工程有限公司 | Unhooking reset device and unhooking reset method |
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| CN2452679Y (en) * | 2000-12-06 | 2001-10-10 | 赵燕书 | Cylinder travel limiting device for plastic window angle cleaning machine |
| CN201906889U (en) * | 2010-12-24 | 2011-07-27 | 唐山市丰润区鑫源机械制造有限公司 | Track clamping device of metallurgical hot sawing machine |
| CN201993220U (en) * | 2011-03-31 | 2011-09-28 | 东莞市恒宇仪器有限公司 | Impact testing machine of roller blades |
| CN102680198A (en) * | 2012-05-14 | 2012-09-19 | 杭州沪宁电梯配件有限公司 | Elevator buffer testing equipment |
| CN202538209U (en) * | 2012-03-28 | 2012-11-21 | 徐州重型机械有限公司 | Supporting leg vertical oil cylinder limiting protection device and fire-fighting truck provided with same |
| CN203385550U (en) * | 2013-08-19 | 2014-01-08 | 天津市特种设备监督检验技术研究院 | Instantaneous-type anti-drop safety device inspection testbed |
| CN105174022A (en) * | 2015-09-10 | 2015-12-23 | 长沙嘉百精密机械有限公司 | Automatic hydraulic unhooking device |
| CN105540423A (en) * | 2016-01-21 | 2016-05-04 | 河南理工大学 | Quick unhooking device with rocker sliding block mechanism |
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2016
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2452679Y (en) * | 2000-12-06 | 2001-10-10 | 赵燕书 | Cylinder travel limiting device for plastic window angle cleaning machine |
| CN201906889U (en) * | 2010-12-24 | 2011-07-27 | 唐山市丰润区鑫源机械制造有限公司 | Track clamping device of metallurgical hot sawing machine |
| CN201993220U (en) * | 2011-03-31 | 2011-09-28 | 东莞市恒宇仪器有限公司 | Impact testing machine of roller blades |
| CN202538209U (en) * | 2012-03-28 | 2012-11-21 | 徐州重型机械有限公司 | Supporting leg vertical oil cylinder limiting protection device and fire-fighting truck provided with same |
| CN102680198A (en) * | 2012-05-14 | 2012-09-19 | 杭州沪宁电梯配件有限公司 | Elevator buffer testing equipment |
| CN203385550U (en) * | 2013-08-19 | 2014-01-08 | 天津市特种设备监督检验技术研究院 | Instantaneous-type anti-drop safety device inspection testbed |
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| Publication number | Publication date |
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| CN106629286A (en) | 2017-05-10 |
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