CN103216565A - Gas-assisted hydraulic damper - Google Patents
Gas-assisted hydraulic damper Download PDFInfo
- Publication number
- CN103216565A CN103216565A CN2013101023237A CN201310102323A CN103216565A CN 103216565 A CN103216565 A CN 103216565A CN 2013101023237 A CN2013101023237 A CN 2013101023237A CN 201310102323 A CN201310102323 A CN 201310102323A CN 103216565 A CN103216565 A CN 103216565A
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- valve
- gas
- contact
- hydraulic damper
- 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.)
- Granted
Links
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The invention is suitable for the technical field of a hydraulic damper and particularly relates to a gas-assisted hydraulic damper. The gas-assisted hydraulic damper comprises a cylinder body, a movable valve, a fixed valve, a sealing assembly, an elastic part, a cylinder body cover and a hydraulic linkage rod. One end of the fixed valve is fixedly connected with the hydraulic linkage rod and the other end of the fixed valve is movably connected with the movable valve; the fixed valve is provided with at least one drainage hole; when the fixed valve and the movable valve are in driving fit, the drainage hole is closed; when the fixed valve and the movable valve are separated, the drainage hole is opened; the space inside the cylinder body is divided into a gas accommodating space and a liquid accommodating space by the sealing assembly; and when the hydraulic linkage rod is pushed into the cylinder body or is pulled out of the cylinder body, pressures of working liquid in the liquid accommodating space and air in the gas accommodating space are always kept naturally balanced, a buffering effect can strengthened and the gas-assisted hydraulic damper is durable.
Description
Technical field
The present invention relates to the hydraulic damper technical field, relate in particular to the auxiliary hydraulic damper of a kind of gas.
Background technique
Hydraulic damper is viscous damper again, hydraulic damper, and according to fluid motion, particularly the principle of viscous resistance makes when fluid can produce during by throttle orifice, is a kind of and rigidity, velocity correlation type damper.Be widely used in fields such as tall building, bridge, building structure aseismatic transformation, industrial pipeline equipment antivibration, military project.
Traditional structural seismic is to resist natural disasteies such as earthquake, wind, snow, tsunami by the anti-seismic performance (intensity, rigidity, ductility) that strengthens structure itself.Because the uncertainty of natural disaster action intensity and characteristic, the structure of traditional anti-shock methods design does not possess capacity of self-regulation again, is applied to the vehicle anticollision structure and engulfs the automotive front space again, and this needs suspension system to become more compact undoubtedly.For the less relatively car in space car particularly, it is more outstanding that problem seems, so Applicable scope is very restricted.
Existing hydraulic damper structure is divided into two classes: a class is that hydraulic damper and air elastic component are arranged apart.Another kind of is the structure that hydraulic damper and spiral elasticity spare combine.This class vibration damper is because elastic component rigidity is immutable or variable range is limited, so accommodation is less, takes place to have unstability before the enough deformation at the air elastic component.
In summary, existing hydraulic damper is on reality is used, and volume does not meet the requirement that light and flexible adapts to antidetonation greatly, obviously has inconvenience and defective, so be necessary to be improved.
Summary of the invention
At above-mentioned defective, the object of the present invention is to provide a kind of isostasy, the auxiliary hydraulic damper of long-lived gas.
To achieve these goals, the invention provides the auxiliary hydraulic damper of a kind of gas, include cylinder body, moving valve, standing valve, black box, elastic component, cylinder body lid and hydraulic pressure continuous motion stem;
The cylinder body top of described cylinder body is provided with opening, is connected with described cylinder body lid on the described opening, and described elastic component, described black box, described standing valve and described moving valve are located in the described cylinder body successively, and described
Elastic component is resisted against between described cylinder body lid and the described black box;
One end of described hydraulic pressure continuous motion stem stretches into described cylinder body and wears described cylinder body lid, described elastic component and black box, and described hydraulic pressure continuous motion stem can be done straight line motion in described cylinder body;
One end of described standing valve and described hydraulic pressure continuous motion stem are affixed, the other end of described standing valve is movable to be connected with described moving valve, and described standing valve is provided with at least one drain hole, when described standing valve and described moving valve mutually during driving fit, close described drain hole, when described standing valve and described moving valve are separated, open described drain hole;
Described cylinder body forms the liquid containing space between cylinder body bottom and described black box, described liquid containing space is filled with working liquid body;
Described cylinder body forms the gas containing space between described black box and described cylinder body lid, described gas containing space is formed with air naturally.
The hydraulic damper auxiliary according to gas of the present invention, described black box comprises seal ring and middleware, described middleware is between described seal ring and described elastic component.
The hydraulic damper auxiliary according to gas of the present invention, described elastic component is at least one spring.
The hydraulic damper auxiliary according to gas of the present invention, the other end of described standing valve is provided with projection, and the top of described projection is provided with limit structure, and described moving valve is movable to be arranged on the described projection.
The hydraulic damper auxiliary according to gas of the present invention, described standing valve and described limit structure are cylindrical body, described moving valve is a cirque body, the diameter in the annulus hole of described moving valve is greater than the diameter of described projection and less than the diameter of described limit structure, and described moving valve is located on the described projection by described annulus hole.
The hydraulic damper auxiliary according to gas of the present invention, described standing valve is provided with at least one throttling channel, when the driving fit or when separating, described throttling channel all is in open mode mutually of described standing valve and described moving valve.
The hydraulic damper auxiliary according to gas of the present invention, on the described standing valve with described moving valve mutually the surface of contact during driving fit be first surface of contact, on the described moving valve with described standing valve mutually the surface of contact during driving fit be second surface of contact, described first surface of contact is greater than described second surface of contact, and described throttling channel is located on described first surface of contact and is exceeded the position of described second surface of contact.
The hydraulic damper auxiliary according to gas of the present invention, on the described standing valve with described moving valve mutually the surface of contact during driving fit be first surface of contact, on the described moving valve with described standing valve mutually the surface of contact during driving fit be second surface of contact, described first surface of contact is greater than described second surface of contact, the position that described drain hole is located on described first surface of contact and is occured simultaneously with described second surface of contact.
The hydraulic damper auxiliary according to gas of the present invention, described cylinder body covers and is provided with the pore that at least one is used for air inlet or exhaust.
The hydraulic damper auxiliary according to gas of the present invention, described pore are arranged at the external diameter edge of described cylinder body lid.
The present invention is by being provided with the location of elastic component moving valve on conventional hydraulic damper basis, make gas containing space internal volume reach designing requirement, can be with the gas containing space volume increase dynamic antivibration that diminishes, the performance elastic component has damping function when the hydraulic pressure continuous motion stem suffers active force, remedy gas containing space underdamping this moment, strengthen cushioning effect, long service life.When described hydraulic pressure continuous motion stem pushes in the cylinder body or pulls out outside the cylinder body, the air of the working liquid body of liquid containing space and gas containing space, pressure is kept the nature equilibrium all the time, can strengthen cushioning effect, durable in use.
Description of drawings
Fig. 1 is the three-dimensional exploded view of the auxiliary hydraulic damper of gas of the present invention;
Fig. 2 A～Fig. 2 D is the stereo amplification figure of each part of the auxiliary hydraulic damper of gas of the present invention;
Fig. 3 is the three-dimensional combination figure of the auxiliary hydraulic damper of gas of the present invention;
Fig. 4 is the stressed work schematic representation that pushes in the cylinder body of hydraulic pressure continuous motion stem of the present invention;
Fig. 5 is that the standing valve invented of the present invention stressed pushes principle enlarged view in the cylinder body;
Fig. 6 is the stressed outer work schematic representation of cylinder body of pulling out of hydraulic pressure continuous motion stem of the present invention; And
Fig. 7 is the stressed outer principle enlarged view of cylinder body of pulling out of the standing valve invented of the present invention.
Embodiment
In order to make purpose of the present invention, technological scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In conjunction with Fig. 1, Fig. 2 A～Fig. 2 D one embodiment of the invention is described, the hydraulic damper that gas of the present invention is auxiliary, include cylinder body 100, moving valve 200, standing valve 300, cylinder body lid 700 and hydraulic pressure continuous motion stem 301, be provided with black box, preferably include seal ring 400, middleware 500, middleware 500 is elastic component fixedly, and described elastic component is preferably at least one spring 600.
Described cylinder body 100 tops are provided with opening 101, be connected with cylinder body lid 700 on the opening 101, described spring 600, seal ring 400, middleware 500, standing valve 300 and moving valve 200 are located in the cylinder body 100 successively, and spring 600 is resisted against between cylinder body lid 700 and seal ring 400, the middleware 500.
One end of described hydraulic pressure continuous motion stem 301 stretches into cylinder body 100 and wears described cylinder body lid 700, spring 600 and seal ring 400, middleware 500, hydraulic pressure continuous motion stem 301 can be done straight line motion in cylinder body 100, contact with cylinder body 100 inwall driving fits by seal ring 400, and the perforation 401 of combination seal circle 400 is with the moving direction of restriction hydraulic pressure continuous motion stem 301.
One end and the hydraulic pressure continuous motion stem 301 of described standing valve 300 are affixed, the movable moving valve 200 that is connected with of the other end of standing valve 300, and standing valve 300 is provided with at least one drain hole 321, when standing valve 300 and moving valve 200 mutually during driving fit, close described drain hole 321, when standing valve 300 and moving valve 200 are separated, open described drain hole 321.
Described cylinder body 100 forms liquid containing space 162 between bottom and black box, liquid containing space 162 is filled with working liquid body; Cylinder body 100 forms gas containing space 172 between black box and cylinder body lid 700, gas containing space 172 accommodates air naturally after having assembled all component.
Be provided with at least one spring 600 at gas containing space 172, cylinder body lid 700 is provided with spring fixed element 721 and perforation 701, middleware 500 is provided with the structure of fixing spring, seal ring 400 and middleware 500 driving fits, form liquid containing space 162 between the top of seal ring 400 and cylinder body 100, middleware 500 is between seal ring 400 and spring 600.The replacing working liquid body is more convenient, also can not flow out when cylinder body lid 700 damages at once.
Shown in Fig. 2 A, the other end of standing valve 300 is provided with projection 311, wear moving valve 200, projection 311 tops are provided with the position-limit mechanism 312 greater than annulus hole 211, preferred, standing valve 300 and limit structure 312 are cylindrical body, and moving valve 200 is a cirque body, the diameter in the annulus hole 211 of moving valve 200 is greater than the diameter of projection 311 and less than the diameter of described limit structure 312, and moving valve 200 is located on the projection 311 by annulus hole 211.
Described standing valve 300 is provided with at least one throttling channel 322, when the driving fit or when separating, throttling channel 322 all is in open mode mutually of standing valve 300 and moving valve 200.On the standing valve 300 with moving valve 200 mutually the surface of contact during driving fit be first surface of contact, on the moving valve 300 with standing valve 300 mutually the surface of contact during driving fit be second surface of contact, described first surface of contact is greater than described second surface of contact, throttling channel 322 is located on described first surface of contact and is exceeded the position of described second surface of contact, from then on working liquid body can flow through in the space, sees Fig. 5.The position that drain hole 321 is located on first surface of contact and is occured simultaneously with described second surface of contact, standing valve 300 and moving valve 200 close drain hole 321 time, prevent that working liquid body from passing through from drain hole 321.Centrosymmetric equally distributed drain hole 321 makes when working liquid body flows through drain hole 321, can not produce torsion drive hydraulic pressure continuous motion stem 301 and spin, and increases stability, reduces wear.
As shown in Figure 4, when hydraulic pressure continuous motion stem 301 stressed pushing in the cylinder body 100, this moment, standing valve 300 and moving valve 200 driving fit mutually and then were closed drain hole 321, and working liquid body passes through via throttling channel 322, thereby reaches the effect that hydraulic damping cushions; Hydraulic pressure continuous motion stem 301 enters in the liquid containing space 162 simultaneously, the volume that hydraulic pressure continuous motion stem 301 increases makes liquid containing space 162 become big, make the working liquid body in the liquid containing space 162 thereby promote seal ring 400, then promote middleware 500, then promote spring 600 again, spring 600 is shunk, gas containing space 172 diminishes at this moment, air is discharged gas containing space 172 via pore 711.
As shown in Figure 5, under drain hole 321 closed conditions, along with hydraulic pressure continuous motion stem 301 further pushes working liquid body, working liquid body extruding gas containing space 172, gas containing space 172 internal pressures increase, begin to export elastic force, spring 600 is in compressive state, the stretching force of spring 600 acts on middleware 500 and the seal ring 400 and exports support force, when gas containing space 172 closes to certain position, spring 600 plays the effect that strengthens buffering again, and gas containing space 172 can be closed slowly.
As Fig. 6, shown in Figure 7, when hydraulic pressure continuous motion stem 301 stressed pulling out outside the cylinder body 100, this moment, standing valve 300 was separated with moving valve 200, and then open drain hole 321, working liquid body simultaneously via drain hole 321 by and throttling channel 322 pass through, thereby do not produce the effect that hydraulic damping cushions, can pull out easily; Hydraulic pressure continuous motion stem 301 withdraws from outside the liquid containing space 162 simultaneously, the volume that hydraulic pressure continuous motion stem 301 reduces reduces liquid containing space 162, make spring 600 thereby diastole in the gas containing space 172 promote middleware 500, then promote seal ring 400 again, this moment, 172 changes of gas containing space were big, air via pore 711, enters gas containing space 172.
Shown in Fig. 2 C, the top of cylinder body lid 700 is provided with pore 711, is used for air inlet or exhaust.Further, external diameter edge at cylinder body lid 700 is provided with pore 711, the upper and lower bound of air pressure threshold value can be set gas containing space 172 as required, pore 711 beginning exhausts when inside reaches described upper threshold, the lower limit that air pressure is lower than described air pressure threshold value is set, pore 711 begins air inlets, can change the volume of gas containing space 172 along with the motion of standing valve 300, changes the size of air pressure inside.
In sum, the present invention is by being provided with the location of elastic component moving valve on conventional hydraulic damper basis, make gas containing space internal volume reach designing requirement, can be with the gas containing space volume increase dynamic antivibration that diminishes, the performance elastic component has damping function when the hydraulic pressure continuous motion stem suffers active force, remedy gas containing space underdamping this moment, strengthen cushioning effect, long service life.When described hydraulic pressure continuous motion stem pushes in the cylinder body or pulls out outside the cylinder body, the air of the working liquid body of liquid containing space and gas containing space, pressure is kept the nature equilibrium all the time, can strengthen cushioning effect, durable in use.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. the hydraulic damper that gas is auxiliary is characterized in that, includes cylinder body, moving valve, standing valve, black box, elastic component, cylinder body lid and hydraulic pressure continuous motion stem;
The cylinder body top of described cylinder body is provided with opening, be connected with described cylinder body lid on the described opening, described elastic component, described black box, described standing valve and described moving valve are located in the described cylinder body successively, and described elastic component is resisted against between described cylinder body lid and the described black box;
One end of described hydraulic pressure continuous motion stem stretches into described cylinder body and wears described cylinder body lid, described elastic component and described black box, and described hydraulic pressure continuous motion stem can be done straight line motion in described cylinder body;
One end of described standing valve and described hydraulic pressure continuous motion stem are affixed, the other end of described standing valve is movable to be connected with described moving valve, and described standing valve is provided with at least one drain hole, when described standing valve and described moving valve mutually during driving fit, close described drain hole, when described standing valve and described moving valve are separated, open described drain hole;
Described cylinder body forms the liquid containing space between cylinder body bottom and described black box, described liquid containing space is filled with working liquid body;
Described cylinder body forms the gas containing space between described black box and described cylinder body lid, described gas containing space is formed with air naturally.
2. the hydraulic damper auxiliary according to the described gas of claim 1 is characterized in that described black box comprises seal ring and middleware, and described middleware is between described seal ring and described elastic component.
3. the hydraulic damper auxiliary according to the described gas of claim 1 is characterized in that described elastic component is at least one spring.
4. the hydraulic damper auxiliary according to the described gas of claim 1 is characterized in that the other end of described standing valve is provided with projection, and the top of described projection is provided with limit structure, and described moving valve is movable to be arranged on the described projection.
5. the hydraulic damper auxiliary according to the described gas of claim 4, it is characterized in that, described standing valve and described limit structure are cylindrical body, described moving valve is a cirque body, the diameter in the annulus hole of described moving valve is greater than the diameter of described projection and less than the diameter of described limit structure, and described moving valve is located on the described projection by described annulus hole.
6. the hydraulic damper auxiliary according to the described gas of claim 1 is characterized in that described standing valve is provided with at least one throttling channel, when the driving fit or when separating, described throttling channel all is in open mode mutually of described standing valve and described moving valve.
7. the hydraulic damper auxiliary according to the described gas of claim 6, it is characterized in that, on the described standing valve with described moving valve mutually the surface of contact during driving fit be first surface of contact, on the described moving valve with described standing valve mutually the surface of contact during driving fit be second surface of contact, described first surface of contact is greater than described second surface of contact, and described throttling channel is located on described first surface of contact and is exceeded the position of described second surface of contact.
8. the hydraulic damper auxiliary according to the described gas of claim 1, it is characterized in that, on the described standing valve with described moving valve mutually the surface of contact during driving fit be first surface of contact, on the described moving valve with described standing valve mutually the surface of contact during driving fit be second surface of contact, described first surface of contact is greater than described second surface of contact, the position that described drain hole is located on described first surface of contact and is occured simultaneously with described second surface of contact.
9. the hydraulic damper auxiliary according to the described gas of claim 1 is characterized in that described cylinder body covers and is provided with the pore that at least one is used for air inlet or exhaust.
10. the hydraulic damper auxiliary according to the described gas of claim 9 is characterized in that, described pore is arranged at the external diameter edge of described cylinder body lid.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310102323.7A CN103216565B (en) | 2013-03-27 | 2013-03-27 | The hydraulic damper that gas is auxiliary |
| TW103111136A TWI632307B (en) | 2013-03-27 | 2014-03-26 | Gas-assisted hydraulic damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310102323.7A CN103216565B (en) | 2013-03-27 | 2013-03-27 | The hydraulic damper that gas is auxiliary |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103216565A true CN103216565A (en) | 2013-07-24 |
| CN103216565B CN103216565B (en) | 2015-11-25 |
Family
ID=48814626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310102323.7A Active CN103216565B (en) | 2013-03-27 | 2013-03-27 | The hydraulic damper that gas is auxiliary |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103216565B (en) |
| TW (1) | TWI632307B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669631A (en) * | 2013-09-10 | 2014-03-26 | 杭州健而控科技有限公司 | Novel tuning gas-liquid column damper with damping and frequency dual regulation function and structural vibration control system |
| CN104653686A (en) * | 2015-02-06 | 2015-05-27 | 伍志勇 | Buffer with controllable buffering force |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20213207U1 (en) * | 2002-08-28 | 2003-02-06 | Singer Lothar | Compressed gas spring has external additional spring arranged around piston rod, and by changing pretensioning of additional spring the extension force can be altered |
| CN101429984A (en) * | 2008-12-01 | 2009-05-13 | 江阴强顺科技有限公司 | Hydraulic damper with excellent leak tightness |
| CN201326674Y (en) * | 2008-12-15 | 2009-10-14 | 浙江恒辉金属制品有限公司 | Hydraulic damper |
| CN201747847U (en) * | 2010-06-24 | 2011-02-16 | 唐善培 | Damper with gradually increasing damping rate |
| CN203214754U (en) * | 2013-03-27 | 2013-09-25 | 杨炯华 | Gas-assisted hydraulic damper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM271101U (en) * | 2004-08-13 | 2005-07-21 | Leado Door Controls Ltd | Hydraulic damper |
-
2013
- 2013-03-27 CN CN201310102323.7A patent/CN103216565B/en active Active
-
2014
- 2014-03-26 TW TW103111136A patent/TWI632307B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20213207U1 (en) * | 2002-08-28 | 2003-02-06 | Singer Lothar | Compressed gas spring has external additional spring arranged around piston rod, and by changing pretensioning of additional spring the extension force can be altered |
| CN101429984A (en) * | 2008-12-01 | 2009-05-13 | 江阴强顺科技有限公司 | Hydraulic damper with excellent leak tightness |
| CN201326674Y (en) * | 2008-12-15 | 2009-10-14 | 浙江恒辉金属制品有限公司 | Hydraulic damper |
| CN201747847U (en) * | 2010-06-24 | 2011-02-16 | 唐善培 | Damper with gradually increasing damping rate |
| CN203214754U (en) * | 2013-03-27 | 2013-09-25 | 杨炯华 | Gas-assisted hydraulic damper |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669631A (en) * | 2013-09-10 | 2014-03-26 | 杭州健而控科技有限公司 | Novel tuning gas-liquid column damper with damping and frequency dual regulation function and structural vibration control system |
| CN104653686A (en) * | 2015-02-06 | 2015-05-27 | 伍志勇 | Buffer with controllable buffering force |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103216565B (en) | 2015-11-25 |
| TW201437512A (en) | 2014-10-01 |
| TWI632307B (en) | 2018-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4987283B2 (en) | Shock absorber valve structure and shock absorber | |
| JP5933598B2 (en) | Suspension device combined with springless shock absorber and method of use | |
| CN104379960B (en) | For damping system between the two-region of amortisseur | |
| US20100224454A1 (en) | Stepless pressure-varying shock absorber | |
| JP2009079710A (en) | Damping force adjusting structure of hydraulic shock absorber | |
| US20060185948A1 (en) | Damping valve | |
| CN106763441A (en) | A kind of automatic adjustable automobile absorber of resistance | |
| US9550403B2 (en) | Hydropneumatic suspension unit | |
| CN105593565B (en) | Hydraulic bjuffer | |
| CN104937304A (en) | Shock absorber | |
| CN206439333U (en) | A kind of automatic adjustable automobile absorber of resistance | |
| CN204004145U (en) | Automobile absorber | |
| JP4918022B2 (en) | Damping force adjustment structure of hydraulic shock absorber | |
| US11633998B2 (en) | Suspension strut | |
| US20100326781A1 (en) | Piston valve assembly of shock absorber | |
| KR20130082082A (en) | Two stage valve and hydraulic damped valve | |
| CN203214754U (en) | Gas-assisted hydraulic damper | |
| CN102434615A (en) | Shock absorber for suspension system | |
| CN103216565A (en) | Gas-assisted hydraulic damper | |
| CN104265824A (en) | Shock absorber | |
| CN103343826A (en) | Novel check valve | |
| WO2019097211A1 (en) | Improved suspension strut | |
| KR20110083391A (en) | Damping force variable valve of a shock absorber | |
| CN108488297A (en) | A kind of hydro-pneumatic spring | |
| Czop et al. | A computational fluid flow analysis of a disc valve system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |