CN204253487U - For the hydraulic buffering valve of the wheel type traveling mechanism of fluid motor-driven - Google Patents
For the hydraulic buffering valve of the wheel type traveling mechanism of fluid motor-driven Download PDFInfo
- Publication number
- CN204253487U CN204253487U CN201420727747.2U CN201420727747U CN204253487U CN 204253487 U CN204253487 U CN 204253487U CN 201420727747 U CN201420727747 U CN 201420727747U CN 204253487 U CN204253487 U CN 204253487U
- Authority
- CN
- China
- Prior art keywords
- fluid port
- hydraulic fluid
- valve
- hydraulic
- equilibrium
- 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
Links
Abstract
The utility model discloses a kind of hydraulic buffering valve of the wheel type traveling mechanism for fluid motor-driven be arranged on oil hydraulic motor; described hydraulic buffering valve opens fast at running on wheels machinery, stop shielding to motor in walking process, plays buffer function to complete machine.Described trimmer valve comprises the Bidirectional balanced valve controlling walking motion, the reduction valve of pilot pressure, and the two-way oil compensation valve of protection motor, works the buffering hydraulic control valve of the effect of sliding and the damping plug of stable regulation.Can realize running on wheels machinery forward-reverse in open hydraulic transmission, the functions such as smooth starting, fast stopping, promoting traveling comfort when walking motion operates.
Description
Technical field
The utility model relates in a kind of running on wheels machinery of fluid motor-driven and is used for protecting oil hydraulic motor, make whole set equipment starting, stop, sliding in can respond the valve group reaching complete machine and operate steadily fast, belong to hydraulic control valve group.
Background technique
In the running on wheels machinery of fluid motor-driven, external producer mostly adopts expensive closed type hydraulic system to carry out the transmission of running gear system.Be limited to external a whole set of hydraulic system expensive, and the system matches of domestic hydraulic parts developer is poor, the open type hydraulic system that most domestic main frame producer develops price relatively cheap is used on running on wheels.But in the Application and Development of high speed vibration hydraulic system, also there is larger problem in market, complete machine walking operational shock is large, easy oil leakage, car load startup, brake stop, sliding in due to traveling gear Cushioning Design unreasonable, effect is undesirable, and noise, the vibration of existence cause element extremely low for working life.
Summary of the invention
The purpose of this utility model provides a kind of running on wheels machinery that can solve fluid motor-driven starting just for deficiency existing in above-mentioned prior art, stop, sliding in the complete machine that causes due to inertia reason to lean forward impact, the vibration that deceleration loading is uneven to be caused and be subject to the hydraulic buffering valve of the wheel type traveling mechanism for fluid motor-driven of the problems such as oil hydraulic motor that system high pressure moment impact causes is easily damaged.This hydraulic buffering valve can use with the multi-way valve coupling of most domestic manufacturers exploitation, meets safety and the performance requirement of hydraulic driving running on wheels machinery.
The purpose of this utility model realizes by following technique measures:
The hydraulic buffering valve of the wheel type traveling mechanism for fluid motor-driven of the present utility model comprises valve body, be arranged on the first hydraulic fluid port on valve body, the second hydraulic fluid port, the 3rd hydraulic fluid port, the 4th hydraulic fluid port, the 5th hydraulic fluid port, the 6th hydraulic fluid port, the 7th hydraulic fluid port, the 8th hydraulic fluid port, the 9th hydraulic fluid port, the tenth hydraulic fluid port, the 11 hydraulic fluid port; Be located at first, second equilibrium valve running on wheels fast braking being played to buffer function that two structures in valve body are identical, reduce a pressure valve of main system pressure, a shuttle valve of oil-feed set direction, work the hydraulic control valve cushioning and slide, two first, second one-way valves playing two-way oil compensation effect, and two first, second damping plugs regulating action parameters; Wherein: the hydraulic fluid port 1 of described shuttle valve communicates with the first equilibrium valve hydraulic fluid port 2, second equilibrium valve hydraulic fluid port 3; Shuttle valve hydraulic fluid port 2 communicates with the second equilibrium valve hydraulic fluid port 2, first equilibrium valve hydraulic fluid port 3; First damping plug hydraulic fluid port 1 communicates with pressure valve hydraulic fluid port 3; First one-way valve hydraulic fluid port 2 is connected with the first equilibrium valve hydraulic fluid port 1, second damping plug hydraulic fluid port 1; First one-way valve hydraulic fluid port 1 communicates with the second one-way valve hydraulic fluid port 1; Second one-way valve hydraulic fluid port 2 is connected with the second equilibrium valve hydraulic fluid port 1, hydraulic control valve hydraulic fluid port 2; Hydraulic control valve hydraulic fluid port 3 is connected with the first damping plug hydraulic fluid port 2, pressure valve hydraulic fluid port 2; Shuttle valve hydraulic fluid port 3 is connected with pressure valve hydraulic fluid port 1; Second damping plug hydraulic fluid port 2 is connected with hydraulic control valve hydraulic fluid port 1; Described first hydraulic fluid port, the 4th hydraulic fluid port communicate with shuttle valve hydraulic fluid port 1, first equilibrium valve hydraulic fluid port 2, second equilibrium valve hydraulic fluid port 3; Described second hydraulic fluid port, the tenth hydraulic fluid port communicate with shuttle valve hydraulic fluid port 2, second equilibrium valve hydraulic fluid port 2, first equilibrium valve hydraulic fluid port 3; Described 3rd hydraulic fluid port communicates with the first damping plug hydraulic fluid port 1, pressure valve hydraulic fluid port 3; Described 5th hydraulic fluid port, the 7th hydraulic fluid port are connected with the first one-way valve hydraulic fluid port 2, first equilibrium valve hydraulic fluid port 1, second damping plug hydraulic fluid port 1; Described 6th hydraulic fluid port communicates with the first one-way valve hydraulic fluid port 1, second one-way valve hydraulic fluid port 1; Described 8th hydraulic fluid port, the 9th hydraulic fluid port are connected with the second one-way valve hydraulic fluid port 2, second equilibrium valve hydraulic fluid port 1, hydraulic control valve hydraulic fluid port 2; Described 11 hydraulic fluid port is connected with hydraulic control valve hydraulic fluid port 3, first damping plug hydraulic fluid port 2, pressure valve hydraulic fluid port 2.
The first damping plug described in the utility model, the second damping plug are interior six side's studs of Intermediate Gray damping hole, and the size of damping hole adjusts according to actual conditions.
The setting pressure adjustable of first, second described equilibrium valve, its hydraulic fluid port 1,2,3 all can be high pressure resistant.
The beneficial effects of the utility model are as follows:
1, reduce high speed wheel type running mechanism in mobility operation for the receptance of feed speed control by arranging equilibrium valve pressure in valve group, complete machine is operated steadily.
2, by the equilibrium valve arranged in valve group rise pressure regulation power and hydraulic control valve opening and closing pressure solve high speed wheel type running mechanism start, stop, sliding in the complete machine shock and vibration problem that causes due to inertia reason.
3, effectively solve slide decompression problem in middle oil hydraulic motor high speed operation, the working life of extension element equipment by arranging damping size in valve group and repairing one-way valve, meet safety operation and the performance requirement of hydraulic driving running on wheels machinery.
4, by being directly installed on by various function i ntegration on oil hydraulic motor together, there is compact structure, regulable control is convenient, avoid external hydraulic pipe line to expose and damage advantages such as reducing leakage of oil risk.
Accompanying drawing explanation
Fig. 1 is principle schematic of the present utility model.
Fig. 2 is the application principle schematic diagram of the utility model hydraulic buffering valve in fluid motor-driven walking.
Embodiment
The utility model is further described below with reference to embodiment's (accompanying drawing):
As shown in Figure 1, the hydraulic buffering valve of the wheel type traveling mechanism for fluid motor-driven of the present utility model comprises valve body, be arranged on the first hydraulic fluid port (A) on valve body, the second hydraulic fluid port (B), the 3rd hydraulic fluid port (L), the 4th hydraulic fluid port (Ma), the 5th hydraulic fluid port (Mc), the 6th hydraulic fluid port (S), the 7th hydraulic fluid port (C), the 8th hydraulic fluid port (D), the 9th hydraulic fluid port (Md), the tenth hydraulic fluid port (Mb), the 11 hydraulic fluid port (ML); Be located at first, second equilibrium valve (4.1,4.2) running on wheels fast braking being played to buffer function that two structures in valve body are identical, reduce a pressure valve (2) of main system pressure, a shuttle valve (3) of oil-feed set direction, work the hydraulic control valve (7) cushioned and slide, two first, second one-way valves (6.1,6.2) playing two-way oil compensation effect, and two first, second damping plugs (1,5) regulating action parameters; Wherein: the hydraulic fluid port 1 of described shuttle valve (3) communicates with the first equilibrium valve (4.1) hydraulic fluid port 2, second equilibrium valve (4.2) hydraulic fluid port 3; Shuttle valve (3) hydraulic fluid port 2 communicates with the second equilibrium valve (4.2) hydraulic fluid port 2, first equilibrium valve (4.1) hydraulic fluid port 3; First damping plug (1) hydraulic fluid port 1 communicates with pressure valve (2) hydraulic fluid port 3; First one-way valve (6.1) hydraulic fluid port 2 is connected with the first equilibrium valve (4.1) hydraulic fluid port 1, second damping plug (5) hydraulic fluid port 1; First one-way valve (6.1) hydraulic fluid port 1 communicates with the second one-way valve (6.2) hydraulic fluid port 1; Second one-way valve (6.2) hydraulic fluid port 2 is connected with the second equilibrium valve (4.2) hydraulic fluid port 1, hydraulic control valve (7) hydraulic fluid port 2; Hydraulic control valve (7) hydraulic fluid port 3 is connected with the first damping plug (1) hydraulic fluid port 2, pressure valve (2) hydraulic fluid port 2; Shuttle valve (3) hydraulic fluid port 3 is connected with pressure valve (2) hydraulic fluid port 1; Second damping plug (5) hydraulic fluid port 2 is connected with hydraulic control valve (7) hydraulic fluid port 1; Described first hydraulic fluid port (A), the 4th hydraulic fluid port (Ma) communicate with shuttle valve (3) hydraulic fluid port 1, first equilibrium valve (4.1) hydraulic fluid port 2, second equilibrium valve (4.2) hydraulic fluid port 3; Described second hydraulic fluid port (B), the tenth hydraulic fluid port (Mb) communicate with shuttle valve (3) hydraulic fluid port 2, second equilibrium valve (4.2) hydraulic fluid port 2, first equilibrium valve (4.1) hydraulic fluid port 3; Described 3rd hydraulic fluid port (L) communicates with the first damping plug (1) hydraulic fluid port 1, pressure valve (2) hydraulic fluid port 3; Described 5th hydraulic fluid port (Mc), the 7th hydraulic fluid port (C) are connected with the first one-way valve (6.1) hydraulic fluid port 2, first equilibrium valve (4.1) hydraulic fluid port 1, second damping plug (5) hydraulic fluid port 1; Described 6th hydraulic fluid port (S) communicates with the first one-way valve (6.1) hydraulic fluid port 1, second one-way valve (6.2) hydraulic fluid port 1; Described 8th hydraulic fluid port (D), the 9th hydraulic fluid port (Md) are connected with the second one-way valve (6.2) hydraulic fluid port 2, second equilibrium valve (4.2) hydraulic fluid port 1, hydraulic control valve (7) hydraulic fluid port 2; Described 11 hydraulic fluid port (ML) is connected with hydraulic control valve (7) hydraulic fluid port 3, first damping plug (1) hydraulic fluid port 2, pressure valve (2) hydraulic fluid port 2.
The first damping plug (1) described in the utility model, the second damping plug (5) are six side's studs in Intermediate Gray damping hole, and the size of damping hole adjusts according to actual conditions.
The setting pressure adjustable of described first, second equilibrium valve (4.1,4.2), its hydraulic fluid port 1,2,3 all can be high pressure resistant.
Application principle of the present utility model as shown in Figure 2, the first hydraulic fluid port A mouth side oil circuit oil-feed supposed by operation walking motion selector valve, working connection enters motor-side hydraulic fluid port A by equilibrium valve (4.1), the 7th hydraulic fluid port (C) and drives oil hydraulic motor, and part enters the 8th hydraulic fluid port (D) be communicated with motor hydraulic fluid port B through damping plug (5), hydraulic control valve (7).Because the effect of damping plug (5) increases gradually along with working connection flow, system pressure also increases gradually opens the startup of equilibrium valve (4.2) main valve plug drive motor stable action gradually, the fluid of drive motor hydraulic fluid port B gets back to selector valve T through equilibrium valve (4.2), the second hydraulic fluid port (B), reverse valve oil head B, finally gets back to hydraulic oil container; Simultaneously along with induced pressure increases system pressure oil through shuttle valve (3), pressure valve (2) gradually when reaching hydraulic control valve (7) control port 3, pilot pressure cuts off hydraulic control valve (7) is communicated with motor A, B mouth both sides oil circuit with damping (5) when increasing to hydraulic control valve (7) commutation operating pressure, complete machine realizes walking completely startup.Damping plug (1) is applied to the pressure of hydraulic control valve (7) control port 3 thus the speed of response of control hydraulic control valve (7) in order to adjustment after pressure valve (2).
Induced pressure fluctuation keep selector valve aperture constant because hydraulic control valve (7), equilibrium valve (4.2) pilot pressure parameter preset coupling, even if also can not affect comparatively greatly the action of complete machine in running process.When need in running process to slide or Emergency braking time, main reversing valve returns meta, and system input pressure reduces rapidly, and hydraulic control valve (7) first responds reset, be communicated with through overdamping (5) by drive motor both sides A, B mouth, equilibrium valve (4.2) main valve plug is closed gradually.Effect due to damping (5) makes drive motor two ends produce the damping pressure reduction of respective change according to the difference of travelling speed at that time, and damping pressure reduction, until complete machine is close to stopping just elimination, plays good buffer function to complete machine.The effect of protection drive motor when the pressure reduction that damping (5) produces and the one-way valve (6.1) playing two-way oil compensation effect, one-way valve (6.2) also serve high speed slide to a certain extent.Walking motion selector valve reverse operating, control principle is identical.Therefore, no matter complete machine advances, retreats, and damping device can make complete machine play smooth starting, slowly stop shock-free requirement.
Claims (2)
1. the hydraulic buffering valve for the wheel type traveling mechanism of fluid motor-driven, it is characterized in that: it comprises valve body, be arranged on the first hydraulic fluid port (A) on valve body, the second hydraulic fluid port (B), the 3rd hydraulic fluid port (L), the 4th hydraulic fluid port (Ma), the 5th hydraulic fluid port (Mc), the 6th hydraulic fluid port (S), the 7th hydraulic fluid port (C), the 8th hydraulic fluid port (D), the 9th hydraulic fluid port (Md), the tenth hydraulic fluid port (Mb), the 11 hydraulic fluid port (ML); Be located at first, second equilibrium valve (4.1,4.2) running on wheels fast braking being played to buffer function that two structures in valve body are identical, reduce a pressure valve (2) of main system pressure, a shuttle valve (3) of oil-feed set direction, work the hydraulic control valve (7) cushioned and slide, two first, second one-way valves (6.1,6.2) playing two-way oil compensation effect, and two first, second damping plugs (1,5) regulating action parameters; Wherein: the hydraulic fluid port 1 of described shuttle valve (3) communicates with the first equilibrium valve (4.1) hydraulic fluid port 2, second equilibrium valve (4.2) hydraulic fluid port 3; Shuttle valve (3) hydraulic fluid port 2 communicates with the second equilibrium valve (4.2) hydraulic fluid port 2, first equilibrium valve (4.1) hydraulic fluid port 3; First damping plug (1) hydraulic fluid port 1 communicates with pressure valve (2) hydraulic fluid port 3; First one-way valve (6.1) hydraulic fluid port 2 is connected with the first equilibrium valve (4.1) hydraulic fluid port 1, second damping plug (5) hydraulic fluid port 1; First one-way valve (6.1) hydraulic fluid port 1 communicates with the second one-way valve (6.2) hydraulic fluid port 1; Second one-way valve (6.2) hydraulic fluid port 2 is connected with the second equilibrium valve (4.2) hydraulic fluid port 1, hydraulic control valve (7) hydraulic fluid port 2; Hydraulic control valve (7) hydraulic fluid port 3 is connected with the first damping plug (1) hydraulic fluid port 2, pressure valve (2) hydraulic fluid port 2; Shuttle valve (3) hydraulic fluid port 3 is connected with pressure valve (2) hydraulic fluid port 1; Second damping plug (5) hydraulic fluid port 2 is connected with hydraulic control valve (7) hydraulic fluid port 1; Described first hydraulic fluid port (A), the 4th hydraulic fluid port (Ma) communicate with shuttle valve (3) hydraulic fluid port 1, first equilibrium valve (4.1) hydraulic fluid port 2, second equilibrium valve (4.2) hydraulic fluid port 3; Described second hydraulic fluid port (B), the tenth hydraulic fluid port (Mb) communicate with shuttle valve (3) hydraulic fluid port 2, second equilibrium valve (4.2) hydraulic fluid port 2, first equilibrium valve (4.1) hydraulic fluid port 3; Described 3rd hydraulic fluid port (L) communicates with the first damping plug (1) hydraulic fluid port 1, pressure valve (2) hydraulic fluid port 3; Described 5th hydraulic fluid port (Mc), the 7th hydraulic fluid port (C) are connected with the first one-way valve (6.1) hydraulic fluid port 2, first equilibrium valve (4.1) hydraulic fluid port 1, second damping plug (5) hydraulic fluid port 1; Described 6th hydraulic fluid port (S) communicates with the first one-way valve (6.1) hydraulic fluid port 1, second one-way valve (6.2) hydraulic fluid port 1; Described 8th hydraulic fluid port (D), the 9th hydraulic fluid port (Md) are connected with the second one-way valve (6.2) hydraulic fluid port 2, second equilibrium valve (4.2) hydraulic fluid port 1, hydraulic control valve (7) hydraulic fluid port 2; Described 11 hydraulic fluid port (ML) is connected with hydraulic control valve (7) hydraulic fluid port 3, first damping plug (1) hydraulic fluid port 2, pressure valve (2) hydraulic fluid port 2.
2. the hydraulic buffering valve of the wheel type traveling mechanism for fluid motor-driven according to claim 1, it is characterized in that: described the first damping plug (1), the second damping plug (5) are six side's studs in Intermediate Gray damping hole, and the size of damping hole adjusts according to actual conditions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420727747.2U CN204253487U (en) | 2014-11-28 | 2014-11-28 | For the hydraulic buffering valve of the wheel type traveling mechanism of fluid motor-driven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420727747.2U CN204253487U (en) | 2014-11-28 | 2014-11-28 | For the hydraulic buffering valve of the wheel type traveling mechanism of fluid motor-driven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253487U true CN204253487U (en) | 2015-04-08 |
Family
ID=52957800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420727747.2U Expired - Fee Related CN204253487U (en) | 2014-11-28 | 2014-11-28 | For the hydraulic buffering valve of the wheel type traveling mechanism of fluid motor-driven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204253487U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402067A (en) * | 2016-11-21 | 2017-02-15 | 徐工消防安全装备有限公司 | Four-drive traveling control valve, open type hydraulic system equipped with same as well as traveling machine |
| CN106545536A (en) * | 2015-09-21 | 2017-03-29 | 徐工集团工程机械股份有限公司 | Slow supply oil valve, slow supply oil system and deep drilling rig |
| CN108412827A (en) * | 2018-05-16 | 2018-08-17 | 湖南星邦重工有限公司 | A kind of hydraulic moving control system |
| CN109058036A (en) * | 2018-07-03 | 2018-12-21 | 中国长江电力股份有限公司 | Control method is moved back in the S-shaped throwing of Hydropower Unit servomotor locking device |
| CN110332184A (en) * | 2019-08-08 | 2019-10-15 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Electric hydrostatic actuator energy feedback suppressing method inhibits oil circuit and electric hydrostatic actuator |
| US20210289700A1 (en) * | 2016-08-04 | 2021-09-23 | The Toro Company | Auxiliary brake system for outdoor grounds maintenance vehicles having hydrostatic traction drive systems |
-
2014
- 2014-11-28 CN CN201420727747.2U patent/CN204253487U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545536A (en) * | 2015-09-21 | 2017-03-29 | 徐工集团工程机械股份有限公司 | Slow supply oil valve, slow supply oil system and deep drilling rig |
| US20210289700A1 (en) * | 2016-08-04 | 2021-09-23 | The Toro Company | Auxiliary brake system for outdoor grounds maintenance vehicles having hydrostatic traction drive systems |
| CN106402067A (en) * | 2016-11-21 | 2017-02-15 | 徐工消防安全装备有限公司 | Four-drive traveling control valve, open type hydraulic system equipped with same as well as traveling machine |
| CN106402067B (en) * | 2016-11-21 | 2018-01-19 | 徐工消防安全装备有限公司 | A kind of 4 wheel driven travel control valve and its hydraulic open system, walking machine |
| CN108412827A (en) * | 2018-05-16 | 2018-08-17 | 湖南星邦重工有限公司 | A kind of hydraulic moving control system |
| CN108412827B (en) * | 2018-05-16 | 2024-03-08 | 湖南星邦智能装备股份有限公司 | Hydraulic walking control system |
| CN109058036A (en) * | 2018-07-03 | 2018-12-21 | 中国长江电力股份有限公司 | Control method is moved back in the S-shaped throwing of Hydropower Unit servomotor locking device |
| CN110332184A (en) * | 2019-08-08 | 2019-10-15 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Electric hydrostatic actuator energy feedback suppressing method inhibits oil circuit and electric hydrostatic actuator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204253487U (en) | For the hydraulic buffering valve of the wheel type traveling mechanism of fluid motor-driven | |
| CN103112792B (en) | Integrated control valve of logging winch and logging winch system | |
| CN210087715U (en) | Switch valve rotation buffering protection system for wet spraying machine | |
| CN204476899U (en) | A kind of crane rotation system control valve | |
| CN104533863B (en) | Crane rotation system control valve | |
| CN202017762U (en) | Novel electrohydraulic control operating valve | |
| CN103967490B (en) | Coal-winning machine fluid pressure type hybrid power cut drive system | |
| CN103174691A (en) | Anti-fluctuation of load rotary buffer control circuit used for rotary hydraulic system | |
| CN109139579B (en) | Hydraulic control system of full-rotation rudder propeller and control method thereof | |
| CN201884349U (en) | Cushioning device of revolving arm support | |
| CN105545839A (en) | Oil cylinder reversing and volume speed adjusting hydraulic system | |
| CN205311729U (en) | Open 4 wheel driven running gear track tensioning hydraulic system | |
| CN203532391U (en) | Balance valve group, winching pilot-operated loop and engineering machine | |
| CN111891949A (en) | Open type rotation control system | |
| CN202251195U (en) | Single-point compensation electromagnetic hydraulic combined control valve | |
| CN107859737B (en) | Feedforward control electric control speed change gear shifting system | |
| CN203728529U (en) | High-altitude work vehicle buffering control system | |
| CN206889375U (en) | Down-the-hole drill propelling pressure self-adaptive hydraulic control loop | |
| CN201679997U (en) | Point acting valve | |
| CN104019225A (en) | Hydrodynamic transmission control system | |
| CN203321923U (en) | Electrically-controlled speed change valve of bulldozer | |
| CN103541942B (en) | Be applicable to the bidirectional control valve of short-wall coal-winning machine height-adjusting system | |
| CN203743110U (en) | Electric control inching valve | |
| CN202203200U (en) | Lowering valve of hydraulic distributor | |
| CN203348695U (en) | Rapid cut-off valve actuator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20181128 |