CN203639764U - Rail base plate - Google Patents

Rail base plate Download PDF

Info

Publication number
CN203639764U
CN203639764U CN201320895061.XU CN201320895061U CN203639764U CN 203639764 U CN203639764 U CN 203639764U CN 201320895061 U CN201320895061 U CN 201320895061U CN 203639764 U CN203639764 U CN 203639764U
Authority
CN
China
Prior art keywords
absorbing
main energy
energy
plate body
post
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 - Lifetime
Application number
CN201320895061.XU
Other languages
Chinese (zh)
Inventor
刘华连
刘敏杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJINAG ZHONGYUAN RAILWAY FITTINGS CO Ltd
Original Assignee
ZHEJINAG ZHONGYUAN RAILWAY FITTINGS CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZHEJINAG ZHONGYUAN RAILWAY FITTINGS CO Ltd filed Critical ZHEJINAG ZHONGYUAN RAILWAY FITTINGS CO Ltd
Priority to CN201320895061.XU priority Critical patent/CN203639764U/en
Application granted granted Critical
Publication of CN203639764U publication Critical patent/CN203639764U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Railway Tracks (AREA)

Abstract

The utility model provides a rail base plate and belongs to the technical field of railway parts. The rail base plate solves the problem that an existing rail base plate is poor in damping effect. The rail base plate comprises a rectangular plate body, wherein protruding bottom edges are arranged on the left edge and right edge of the bottom surface of the plate body respectively and are perpendicular to the bottom surface of the plate body, the top surface and bottom surface of the plate body are respectively provided with a plurality of columnar main energy absorption columns, multiple adjacent main energy absorption columns form a main energy absorption row in the direction parallel to the bottom edges of the plate body, multiple main energy absorption rows are arranged, and multiple auxiliary energy absorption columns lower than the main energy absorption columns are arranged between every two adjacent main energy absorption rows. According to the rail base plate, due to the fact that the main energy absorption columns and the auxiliary energy absorption columns are different in height, static rigidity can be adjusted automatically; due to the fact that the main energy absorption columns and the auxiliary energy absorption columns are all frustum-shaped, train operation can be more stable; due to the fact that reinforcing ribs are arranged between the main energy absorption columns, the structure of the base plate is more stable; due to the fact that the top surface of each main energy absorption column is in the shape of an oval or rectangle which is arranged in the direction of a rail, the base plate can be better adapted to train operation.

Description

A kind of rail tie plate
Technical field
The utility model belongs to railway casting technical field, relates to a kind of rail tie plate.
Background technology
Train is one of main traffic instrument of the mankind, and the feature of its high-speed low accident rate is also by numerous passengers are favored.Rail is the requisite infrastructure of train running, and its quality directly has influence on speed and the safety of train.For making train more steady in the process of moving, ensure the comfort of passenger in the time of used during taking train, generally below rail, can be provided with backing plate realizes damping effect.
For example, Chinese utility model patent (application number: 200920100124.1; Notice of authorization number: CN201459537U) a kind of railway elastic base plate is disclosed, railway elastic base plate is plane backing plate, on the bearing surface of plane backing plate, is provided with projection, projection is uniformly distributed.It is cylindrical bump, block-shaped protrusion, strip projected parts form of structure that original slate structure is redesigned into bearing surface by this backing plate, boss is uniformly distributed, reduce the quiet rigidity of backing plate, both solve the flatness problem of backing plate, also ensured the problem on deformation of product, like this, both reduced the contact area of backing plate, can make again load be uniformly distributed, reduce quiet rigidity, also save raw material.
But in this backing plate, boss height is identical, make backing plate only have a quiet rigidity, therefore, backing plate is poor through out-of-date damping effect to the train of Different Weight.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of rail tie plate that can automatically regulate quiet rigidity.
The purpose of this utility model can realize by following technical proposal:
A kind of rail tie plate, comprise the plate body being rectangle, the right and left of described plate body bottom surface is along locating all have the base perpendicular to bottom surface projection, it is characterized in that, on described plate body end face and bottom surface, all there are some main energy-absorbing posts that are column, along direction several adjacent main energy-absorbing cylindricalitys parallel with base main energy-absorbing row in a row, described main energy-absorbing row's quantity is several, between described adjacent two main energy-absorbing rows, has the secondary energy-absorbing post of some height lower than main energy-absorbing post.
When mounted, long limit and the rail of plate body be arranged in parallel.Rail tie plate is between sleeper and rail, and two protruding bases are positioned at the both sides of sleeper, and this backing plate is played the role of positioning.In the time of train process backing plate top, the vibration that train operation produces is adsorbed by backing plate, thereby makes train operation comparatively stable.Base is positioned at the broadside place of plate body.
Train is through out-of-date, rail with contact with the main energy-absorbing post on backing plate at first, now produce the first quiet rigidity.In the time that the weight of train is heavier, train compresses main energy-absorbing post.In the time that compression degree arrives secondary energy-absorbing post height, backing plate produces the second quiet rigidity.Backing plate becomes the process of the second quiet rigidity from the first quiet rigidity, and main energy-absorbing post generation deformation, plays a good buffering effect to train.Therefore, this backing plate can be adjusted quiet rigidity automatically to the train of Different Weight.
In above-mentioned rail tie plate, described main energy-absorbing post is frustum.The main energy-absorbing post of frustum is in the area difference of the cross section of differing heights, that is to say, on main energy-absorbing post the closer to larger in the section area at plate body place, make main energy-absorbing post at this height and position just larger to the required power of the main energy-absorbing post of lower compression, to travel through train play a good buffering effect.Contact area between bottom and the plate body of this shape is larger, and connection is between the two comparatively firm, and meanwhile, the area at its top is less, has reduced the quiet rigidity of backing plate.
In above-mentioned rail tie plate, the cross section ovalize of described main energy-absorbing post and this oval-shaped major axis and above-mentioned base are perpendicular, and above-mentioned cross section is parallel with plate body bottom surface.That is to say, the oval-shaped long axis direction of main energy-absorbing post is parallel with rail.In train driving process, the stressed change direction of main energy-absorbing post is along long axis direction, and therefore, the oval-shaped long axis direction of main energy-absorbing post is parallel with rail, can make backing plate more adapt to train operation.
In above-mentioned rail tie plate, the cross section of described main energy-absorbing post be rectangle and rectangular long limit and above-mentioned base perpendicular, above-mentioned cross section is parallel with plate body bottom surface.
In above-mentioned rail tie plate, between described same row's main energy-absorbing row's adjacent two main energy-absorbing posts, there is reinforcing rib.Reinforcing rib is set, not only makes whole backing structure comparatively firm, meanwhile, adjacent two main energy-absorbing posts can be mutually stressed.Like this, the main energy-absorbing row of whole row is linked to be an entirety, and in the time that rail pushes backing plate, due to the setting of reinforcing rib, pressure is dispersed, and makes whole backing plate stressed comparatively even.Reinforcing rib and plate body are integral type structure.Reinforcing rib also can increase the endurance of backing plate simultaneously.
In above-mentioned rail tie plate, described reinforcing rib is strip and it is highly lower than secondary energy-absorbing post.In the time that backing plate is compressed into reinforcing rib height, backing plate produces the 3rd quiet rigidity.
In above-mentioned rail tie plate, described secondary energy-absorbing post is circular cone shape.The secondary energy-absorbing post of circular cone shape is in the area difference of the cross section of differing heights, that is to say, on secondary energy-absorbing post the closer to larger in the section area at plate body place, make secondary energy-absorbing post just larger to the required power of the secondary energy-absorbing post of lower compression again at this height and position, to travel through train play a good buffering effect.Contact area between bottom and the plate body of this shape is larger, and connection is between the two comparatively firm, and meanwhile, the area at its top is less, has reduced quiet rigidity.As another kind of scheme, being shaped as of secondary energy-absorbing post is cylindrical.
In above-mentioned rail tie plate, on the end face of described plate body and bottom surface, all there is recessed energy-absorbing chamber, above-mentioned main energy-absorbing post is mutually concordant with port, energy-absorbing chamber with the top that secondary energy-absorbing post is all arranged in energy-absorbing chamber and main energy-absorbing post.More specifically, have the gear edge of protrusion along plate body around, together form recessed energy-absorbing chamber with plate body, the gear of energy-absorbing chamber sidepiece plays the effect of buffering along a pair of train.
In above-mentioned rail tie plate, described energy-absorbing chamber sidepiece has the drain hole running through.Rail tie plate in use, is understood unavoidably the foreign material such as rain and is entered in main energy-absorbing chamber, offers drain hole thereon, makes the foreign material such as rainwater for convenience of discharging, keep the clean of backing plate from energy-absorbing chamber, extends the application life of backing plate.Meanwhile, on the gear edge of energy-absorbing chamber sidepiece, offer drain hole, also can reduce gear and concentrate along one stress, make the structure of backing plate more stable.Be provided with drain hole, train is through out-of-date, and compressed air also can be discharged faster from drain hole.
In above-mentioned rail tie plate, main energy-absorbing post quantity on described adjacent two main energy-absorbings rows is identical and position is corresponding one by one.The distribution of main energy-absorbing post is comparatively even, makes the comparatively rule of shape of backing plate, and stressed even, structure is comparatively stable.
In above-mentioned rail tie plate, described secondary energy-absorbing post is two of adjacent two main energy-absorbings rows one to one between reinforcing rib.That is to say, main energy-absorbing post and secondary energy-absorbing post are staggered and are arranged on plate body end face and bottom surface.
In above-mentioned rail tie plate, along the end face orthography direction of plate body, the gap between the main energy-absorbing post of plate body end face and the adjacent two main energy-absorbing posts in plate body bottom surface is just right.Like this, gap between the secondary energy-absorbing post of end face and the adjacent two secondary energy-absorbing posts in bottom surface is just right, interstitial site between interstitial site between main energy-absorbing post and secondary energy-absorbing post was unlikely to thin, made the intensity of whole backing plate stronger, and its fatigue performance is better, structure is comparatively stable.
In above-mentioned rail tie plate, on described adjacent two main energy-absorbing rows, between two main energy-absorbing posts, there is reinforcing rib one to one.Like this, make the intensity of whole backing plate stronger.
Compared with prior art, this rail tie plate has the following advantages:
1, main energy-absorbing post is different from the height of secondary energy-absorbing post, makes this backing plate according to the train of Different Weight, can automatically regulate quiet rigidity;
2, main energy-absorbing post and secondary energy-absorbing post are all frustum, make backing plate play a good cushioning effect to train, thereby make train operation more stable;
3, in the main energy-absorbing row of same row, between adjacent two main energy-absorbing posts, reinforcing rib is set, makes backing structure more stable;
4, the end face of main energy-absorbing post is shaped as the ellipse or the rectangle that arrange along rail direction, can make backing plate more adapt to train operation.
Brief description of the drawings
Fig. 1 is the positive perspective view of this rail tie plate;
Fig. 2 is the back side perspective view of this rail tie plate;
Fig. 3 is the elevation of this rail tie plate;
Fig. 4 is the sectional view of A-A face in Fig. 3;
Fig. 5 is the sectional view of B-B face in Fig. 3.
In figure, 1, plate body; 2, base; 3, main energy-absorbing post; 4, secondary energy-absorbing post; 5, reinforcing rib; 6, energy-absorbing chamber; 61, gear edge; 62, drain hole.
Detailed description of the invention
As shown in Figures 1 to 5, this rail tie plate comprises the plate body 1 being rectangle, and the right and left of plate body 1 bottom surface is along locating all have the base 2 perpendicular to bottom surface projection.Position, base 2 is in the broadside place of plate body 1.
The end face of plate body 1 has the main energy-absorbing row of eight rows and the secondary energy-absorbing row of seven rows, and main energy-absorbing row and secondary energy-absorbing are arranged alternate setting.The bottom surface of plate body 1 also has the main energy-absorbing row of seven rows and the secondary energy-absorbing row of six rows.Main energy-absorbing row and secondary energy-absorbing row all be arranged in parallel with base plate 2.
In the main energy-absorbing post of every row, there are six main energy-absorbing posts 3, in the secondary energy-absorbing of every row row, there are five secondary energy-absorbing posts 4, the setting that is staggered of main energy-absorbing post 3 and secondary energy-absorbing post 4.Main energy-absorbing post 3 and secondary energy-absorbing post 4 are all frustum and protrude from plate body 1 upper and lower surface.The height of secondary energy-absorbing post 4 is lower than the height of main energy-absorbing post 3.
When mounted, long limit and the rail of plate body 1 be arranged in parallel.Rail tie plate is between sleeper and rail, and two protruding bases 2 are positioned at the both sides of sleeper, and this backing plate is played the role of positioning.In the time of train process backing plate top, the vibration that train operation produces is adsorbed by backing plate, thereby makes train operation comparatively stable.
Train is through out-of-date, rail with contact with the main energy-absorbing post 3 on backing plate at first, now backing plate produces the first quiet rigidity.In the time that the weight of train is heavier, train compresses main energy-absorbing post 3.In the time that compression degree arrives secondary energy-absorbing post 4 height, backing plate produces the second quiet rigidity.Backing plate becomes the process of the second quiet rigidity from the first quiet rigidity, and deformation occurs main energy-absorbing post 3, and train is played to a good buffering effect.Therefore, this backing plate can be adjusted quiet rigidity automatically according to the train of Different Weight.
Main energy-absorbing post 3 and secondary energy-absorbing post 4 are all frustum.The main energy-absorbing post 3 of frustum is different at the area of the cross section of differing heights with secondary energy-absorbing post 4, that is to say, on main energy-absorbing post 3 and secondary energy-absorbing post 4 the closer to larger in the section area at plate body 1 place, make main energy-absorbing post 3 or secondary energy-absorbing post 4 just larger to the required power of the main energy-absorbing post 3 of lower compression again at this height and position, to travel through train play a good buffering effect.Contact area between the bottom of this shape and plate body 1 is larger, and connection is between the two comparatively firm, and meanwhile, the area at its top is less, has reduced quiet rigidity.
The cross section ovalize of main energy-absorbing post 3 and oval-shaped major axis and base 2 are perpendicular, and this cross section is parallel with plate body 1.That is to say the end face ovalize of main energy-absorbing post 3.The oval-shaped long axis direction of main energy-absorbing post 3 is parallel with rail.In train driving process, the stressed change direction of main energy-absorbing post 3 is along long axis direction, and therefore, the oval-shaped long axis direction of main energy-absorbing post 3 is parallel with rail, can make backing plate more adapt to train operation.
As another kind of scheme, main energy-absorbing post horizontal be rectangle and rectangular long limit and base perpendicular.
Between same row's main energy-absorbing row's adjacent two main energy-absorbing posts 3, there is reinforcing rib 5.Reinforcing rib 5 is set, not only makes whole backing structure comparatively firm, meanwhile, adjacent two main energy-absorbing posts 3 are mutually stressed.Like this, the main energy-absorbing row of whole row is linked to be an entirety, and in the time that rail pushes backing plate, due to the setting of reinforcing rib 5, pressure is dispersed, and makes whole backing plate stressed comparatively even.Reinforcing rib 5 is integral type structure with plate body 1.Reinforcing rib 5 also can increase the endurance of backing plate simultaneously.
As another kind of scheme, except thering is reinforcing rib between two main energy-absorbing posts adjacent in the main energy-absorbing row of same row, on adjacent two main energy-absorbing rows, between two main energy-absorbing posts, also there is reinforcing rib one to one.Like this, make the intensity of whole backing plate stronger.
Reinforcing rib 5 is strip and it is highly lower than secondary energy-absorbing post 4.In the time that backing plate is compressed into reinforcing rib 5 height, backing plate produces the 3rd quiet rigidity.
On the end face of plate body 1 and bottom surface, all have recessed energy-absorbing chamber 6, main energy-absorbing post 3 is mutually concordant with 6 ports, energy-absorbing chamber with the top that secondary energy-absorbing post 4 is all arranged in energy-absorbing chamber 6 and main energy-absorbing post 3.More specifically, the gear that has protrusion around along plate body 1, along 61, together forms energy-absorbing chamber 6 with plate body 1, and the gear of energy-absorbing chamber 6 sidepieces plays the effect of buffering along 61 a pair of trains.When train is through out-of-date, gear together plays a supportive role to train along 61 top and the top of main energy-absorbing post 3, also plays certain cushioning effect simultaneously.
Energy-absorbing chamber 6 sidepieces have the drain hole 62 running through.Rail tie plate in use, is understood unavoidably the foreign material such as rain and is entered in main energy-absorbing chamber 6, offers drain hole 62 thereon, makes the foreign material such as rainwater for convenience of discharging, keep the clean of backing plate from energy-absorbing chamber 6, extends the application life of backing plate.Meanwhile, offer drain hole 62 at the gear of energy-absorbing chamber 6 sidepieces on along 61, also can reduce gear and concentrate along 61 1 stress, make the structure of backing plate more stable.Be provided with drain hole 62, train is through out-of-date, and compressed air can be discharged faster from drain hole 62.
Main energy-absorbing post 3 quantity on adjacent two main energy-absorbings rows are identical and position is corresponding one by one.The distribution of main energy-absorbing post 3 is comparatively even, makes the comparatively rule of shape of backing plate, and stressed even, structure is comparatively stable.
Secondary energy-absorbing post 4 is two of adjacent two main energy-absorbings rows one to one between reinforcing rib 5.That is to say, main energy-absorbing post 3 is staggered and is arranged on plate body 1 end face with secondary energy-absorbing post 4.
Along the end face orthography direction of plate body 1, the gap between the main energy-absorbing post 3 of plate body 1 end face and the adjacent two main energy-absorbing posts 3 in plate body 1 bottom surface is just right.Like this, gap between the secondary energy-absorbing post 4 of end face and the adjacent two secondary energy-absorbing posts 4 in bottom surface is just right, interstitial site between interstitial site between main energy-absorbing post 3 and secondary energy-absorbing post 4 was unlikely to thin, make the intensity of whole backing plate stronger, its fatigue performance is better, structure is comparatively stable.
Because the structure of backing plate is comparatively stable, intensity is stronger, when train from track through out-of-date, reduced the damage of backing plate to sleeper and rail, extended the application life of sleeper and rail, improved the ability to bear of rail.

Claims (10)

1. a rail tie plate, comprise the plate body (1) being rectangle, the right and left of described plate body (1) bottom surface is along locating all have the base (2) perpendicular to bottom surface projection, it is characterized in that, on described plate body (1) end face and bottom surface, all there are some main energy-absorbing posts (3) that are column, along direction several adjacent main energy-absorbing post (3) shapes parallel with base (2) main energy-absorbing row in a row, described main energy-absorbing row's quantity is several, between described adjacent two main energy-absorbing rows, there is the secondary energy-absorbing post (4) of some height lower than main energy-absorbing post (3).
2. a kind of rail tie plate according to claim 1, is characterized in that, described main energy-absorbing post (3) is frustum.
3. a kind of rail tie plate according to claim 1 and 2, it is characterized in that, the cross section ovalize of described main energy-absorbing post (3) and this oval-shaped major axis and above-mentioned base (2) are perpendicular, and above-mentioned cross section is parallel with plate body (1) bottom surface.
4. a kind of rail tie plate according to claim 1 and 2, is characterized in that, between described same row's main energy-absorbing row's adjacent two main energy-absorbing posts (3), has reinforcing rib (5).
5. a kind of rail tie plate according to claim 4, is characterized in that, described reinforcing rib (5) is strip and it is highly lower than secondary energy-absorbing post (4).
6. a kind of rail tie plate according to claim 1 and 2, is characterized in that, described secondary energy-absorbing post (4) is circular cone shape.
7. a kind of rail tie plate according to claim 1 and 2, it is characterized in that, on the end face of described plate body (1) and bottom surface, all have recessed energy-absorbing chamber (6), above-mentioned main energy-absorbing post (3) is mutually concordant with port, energy-absorbing chamber (6) with the top that secondary energy-absorbing post (4) is all arranged in energy-absorbing chamber (6) and main energy-absorbing post (3).
8. a kind of rail tie plate according to claim 7, is characterized in that, described energy-absorbing chamber (6) sidepiece has the drain hole (62) running through.
9. a kind of rail tie plate according to claim 4, it is characterized in that, main energy-absorbing post (3) quantity on described adjacent two main energy-absorbings rows is identical and position is corresponding one by one, and described secondary energy-absorbing post (4) is positioned at two of adjacent two main energy-absorbings rows one to one between reinforcing rib (5).
10. a kind of rail tie plate according to claim 1 and 2, it is characterized in that, along the end face orthography direction of plate body (1), it is just right to be positioned at the main energy-absorbing post (3) of plate body (1) end face and to be positioned at gap between the adjacent two main energy-absorbing posts (3) of plate body (1) bottom surface.
CN201320895061.XU 2013-12-31 2013-12-31 Rail base plate Expired - Lifetime CN203639764U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320895061.XU CN203639764U (en) 2013-12-31 2013-12-31 Rail base plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320895061.XU CN203639764U (en) 2013-12-31 2013-12-31 Rail base plate

Publications (1)

Publication Number Publication Date
CN203639764U true CN203639764U (en) 2014-06-11

Family

ID=50871022

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320895061.XU Expired - Lifetime CN203639764U (en) 2013-12-31 2013-12-31 Rail base plate

Country Status (1)

Country Link
CN (1) CN203639764U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103711047A (en) * 2013-12-31 2014-04-09 浙江中元铁路配件有限公司 Iron rail cushion plate
CN114657822A (en) * 2022-04-19 2022-06-24 株洲时代新材料科技股份有限公司 Buckling pad combined structure directly acting on steel rail in rail fastener system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103711047A (en) * 2013-12-31 2014-04-09 浙江中元铁路配件有限公司 Iron rail cushion plate
CN103711047B (en) * 2013-12-31 2016-04-06 浙江中元铁路配件有限公司 A kind of rail tie plate
CN114657822A (en) * 2022-04-19 2022-06-24 株洲时代新材料科技股份有限公司 Buckling pad combined structure directly acting on steel rail in rail fastener system
CN114657822B (en) * 2022-04-19 2023-08-25 株洲时代新材料科技股份有限公司 Buckling pad combined structure directly acting on steel rail in track fastener system

Similar Documents

Publication Publication Date Title
CN103711047B (en) A kind of rail tie plate
CN203639762U (en) Sub-rail base plate
CN103669125B (en) A kind of rail tie plate
CN203639763U (en) Sub-rail base plate
CN203625728U (en) Anti-deflection elastic fastener
CN203546535U (en) Heavy load base plate with high friction coefficient
CN203639764U (en) Rail base plate
CN104612000B (en) A kind of rubber spacer railway structure with vibration and noise reducing function
US20140331891A1 (en) Railway wagon bogie and axle box rubber spring thereof
CN203639765U (en) Rail base plate
CN102912695A (en) Railway slip-resisting shock-reducing rubber cushion plate
CN203144848U (en) Vibration reduction base plate capable of preventing rollover and provided with variable rigidity
CN202265917U (en) Multi-groove lead shear damper
CN203754174U (en) High-connection-accuracy hollow elevator guide rail
CN201747837U (en) Transverse rubber mat with hard stopper integrating shear and compression functions
CN209619760U (en) A kind of railway rail pad for bend
CN202429160U (en) Novel protective guardrail
CN210597002U (en) Bridge expansion device capable of realizing large-span joint and pressing plate
CN203113162U (en) Rail square crossing quadrangle way
CN201172784Y (en) Step type rubber backing plate
CN201942958U (en) Fixed frog with high smoothness
CN106499059A (en) A kind of assembled rolling friction rubber support
CN105114261A (en) Gear box elastic support component of wind turbine generator set
KR200493497Y1 (en) Toy train assembly
CN202124807U (en) Elastic polyester base plate

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20140611