CN106593997A - Safe and precise self-locking oil cylinder capable of being flexibly adjusted - Google Patents
Safe and precise self-locking oil cylinder capable of being flexibly adjusted Download PDFInfo
- Publication number
- CN106593997A CN106593997A CN201611119496.XA CN201611119496A CN106593997A CN 106593997 A CN106593997 A CN 106593997A CN 201611119496 A CN201611119496 A CN 201611119496A CN 106593997 A CN106593997 A CN 106593997A
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- China
- Prior art keywords
- self
- locking
- oil cylinder
- adjusted flexibly
- push rod
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B15/262—Locking mechanisms using friction, e.g. brake pads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B2015/268—Fluid supply for locking or release independent of actuator pressurisation
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a safe and precise self-locking oil cylinder capable of being flexibly adjusted and relates to the functional field of oil cylinders. According to an existing oil cylinder, when an extra heavy object is jacked to a designated position, the oil pressure in the oil cylinder changes accidentally, the jacked-up extra heavy object falls for some reasons, and danger is caused; and in the mold injection molding product industry, when a mold is not provided with a mechanism facilitating counter power, the oil cylinder cannot resist the injection molding power, precise automatic positioning locking and automatic unlocking cannot be achieved, and manufacturing and using of the oil cylinder are not convenient. The safe and precise self-locking oil cylinder capable of being flexibly adjusted comprises a specially-made base; an adjustable supporting column is arranged at the center of the base and is additionally provided with a quakeproof washer and a nut which are used for adjusting the positioning size; a specially-made combined piston is installed between the adjustable supporting column and a jacking rod and is used for power transmission, positioning and unlocking; the specially-made jacking rod is installed in the middle of the combined piston; a self-locking part is arranged in the combined piston and is used for locking the positions of the combined piston and the jacking rod; and a spring is arranged between the jacking rod and the combined piston to prevent that danger happens to accidental resetting of the combined piston.
Description
Technical field
The present invention relates to fluid medium pressure braking technology, particularly requires to have convenient adjustment from lock control reaction force function
Oil cylinder.
Background technology
Mechanical oil-vat in existing fluid media (medium) braking technology, when liquid medium occurs meaning change or nothing to power
Method opposing produces unexpected danger by the object Gravity changer of oil cylinder jack-up.Just as existing oil cylinder is the high jack-up of extra heavy object
During to specified location, forcing press failure or oil pipe is sent by accidental destruction and the ceaselessly oil leak of other assembly parts, stream in oil cylinder
Body medium load changes, and being fallen for some reason by the extra heavy object of jack-up causes dangerous generation；In the industry of mold injection product
In, when mould is without reaction force mechanisms are conveniently done, and the slide block quilt that existing oil cylinder cannot resist injection power and be attached thereto
Slight reverse movement, now slide block cannot sealing cause to be molded by the product for coming and defect occur；Other present technology oil cylinder is not
Conveniently install and use, installing needs special tonger, positioning precision be difficult to adjust or cannot adjust be unable to reach accurate self-locking with it is automatic
The demand of unblock, therein complex structure, parts machining process is complicated, and production cost is high, and part life is not long, it has not been convenient to make
With or renewal part.
The content of the invention
The content of the invention：Goal of the invention, in order to solve the problems, such as that prior art described by background technology is not enough, the present invention is provided
A kind of safety precise can be adjusted flexibly self-locking oil cylinder, including combination base, can be adjusted flexibly support column, built-up piston, push rod
With self-locking parts, detailed scheme of the invention is explained as follows：
Combinations thereof base it is characterized in that：It is made up of with spiral shell bud base oil sealing base, oil sealing base center is provided with one
Hole, is provided with oil seal ring in its hole, spiral shell bud base center is provided with interior spiral shell bud, and the combination base center is equipped with and supporting can be adjusted flexibly
Post；It is described support column is adjusted flexibly it is characterized in that：Support column can be adjusted flexibly and be provided with spiral shell bud near one end of spiral shell bud base
With spiral shell bud base engagement and spiral shell bud column length grows base and installs earthquake washer and nut additional, this most end is additionally provided with interior hexagonal
Face and outer-hexagonal face, this can be adjusted flexibly support column and be provided with a circle groove, and the excessive platform of groove with one end of ejector pin contact
Terrace coincide with the feature of the locking contact surface of self-locking parts；The built-up piston is characterised by：By positioning piston with
Power piston is constituted, and this built-up piston is mounted between the push rod that support column can be adjusted flexibly and blind hole is provided with, bearing pressure piston and top
Spring is housed, bearing pressure piston is characterised by being provided with concave surface step with one end interstitial hole of positioning piston contact between bar, and this
The depth of step is more than the hanging platform of push rod and has spring sum, positions one end that piston is characterised by being contacted with self-locking parts
Interstitial hole is provided with inclined-plane and detent, and this detent when being characterised by oil cylinder locking, the concave side of detent with from
Lock parts are in close contact and reach locating effect；The push rod it is characterized in that：Push rod is provided with one end of bearing pressure piston contact
Hanging platform and centre are provided with deep the region between the heart and the diaphragm hole, and the beginning in the region between the heart and the diaphragm hole is provided with the face identical with the feature of the locking contact surface of self-locking parts；Institute
State self-locking parts it is characterized in that：It is mounted in positioning piston, can be adjusted flexibly between support column and push rod.
A kind of above-mentioned safety precise can be adjusted flexibly self-locking oil cylinder, and its feature also includes self-locking parts, the self-locking
Parts are shaped as spheroid, and the self-locking parts are mounted in positioning piston, can be adjusted flexibly between support column and push rod.
A kind of above-mentioned safety precise can be adjusted flexibly self-locking oil cylinder, it is characterised in that：Described be adjusted flexibly supporting
One end of post and ejector pin contact is provided with a circle groove, and the excessive step surface of groove is provided with cambered surface, the diameter of the cambered surface with
The sphere diameter of spheroid self-locking parts coincide, also straight including the spheroid with diameter greater than spheroid self-locking parts of the cambered surface
Footpath.
A kind of above-mentioned safety precise can be adjusted flexibly self-locking oil cylinder, it is characterised in that：Described push rod and bearing pressure piston
One end of contact is provided with hanging platform and centre is provided with deep the region between the heart and the diaphragm hole, and the beginning in the region between the heart and the diaphragm hole is provided with cambered surface, and the diameter of the cambered surface is with spheroid certainly
The sphere diameter of lock parts coincide, also including the sphere diameter with diameter greater than spheroid self-locking parts of the cambered surface.
A kind of comprehensive above-described safety precise can be adjusted flexibly self-locking oil cylinder, and it belongs to same total inventive concept
The inventive features of more than two be：Also include self-locking parts, it is shaped as polyhedron, the self-locking parts are mounted in fixed
Position piston, can be adjusted flexibly between support column and push rod.
A kind of above-mentioned safety precise can be adjusted flexibly self-locking oil cylinder, it is characterised in that：Described be adjusted flexibly supporting
One end of post and ejector pin contact is provided with a circle groove, and the excessive step surface of groove is provided with inclined-plane, the gradient on the inclined-plane with
The locking contact inclined-plane of polyhedron self-locking parts coincide.
A kind of above-mentioned safety precise can be adjusted flexibly self-locking oil cylinder, it is characterised in that：Described push rod and bearing pressure piston
One end of contact is provided with hanging platform and centre is provided with deep the region between the heart and the diaphragm hole, and the beginning in the region between the heart and the diaphragm hole is provided with inclined-plane, the gradient and polyhedron on the inclined-plane
The locking contact inclined-plane of self-locking parts coincide.
Description of the drawings
Fig. 1 is the internal structure brief introduction figure that a kind of safety precise can be adjusted flexibly self-locking oil cylinder.
Schematic diagram during Fig. 2 oil cylinder spheroid self-locking parts locking states of the present invention.
Schematic diagram during Fig. 3 oil cylinder spheroid self-locking parts released states of the present invention.
Schematic diagram during Fig. 4 oil cylinder polyhedron self-locking parts self-locking states of the present invention.
Schematic diagram during Fig. 5 oil cylinder polyhedron self-locking parts released states of the present invention.
Wherein：The self-locking parts of Fig. 2 and Fig. 3 are spheroid, and the be adjusted flexibly support column of associated and push rod are locked
When contact surface feature be cambered surface.
Fig. 4 and Fig. 5 its inventive features difference for belonging to more than two of same total inventive concept is：Self-locking zero
Part is polyhedron (Fig. 2,3 its be spheroid), the feature of contact surface when the be adjusted flexibly support column of associated and push rod are locked
For inclined-plane (Fig. 2,3 its be cambered surface).
Title shown in label in accompanying drawing：A1- can be adjusted flexibly support column, and A2- can be adjusted flexibly support column, D1- push rods,
D2- push rods, B1- self-locking parts, B2- self-locking parts, 1- oil sealing bases, 3- spiral shell bud bases, 2- oil seal rings, 5- crash rolls
Circle, 6- nuts, hex surface in N-, W- outer-hexagonals face, the excessive step surfaces of R1-, the excessive step surfaces of R2-, 7- positioning pistons, 8- bearing pressures
Piston, 9- springs, H- detents, E- locking oil-ins, S- unblock oil-ins.
Specific embodiment
Below just the accompanying drawing of the present invention is made further to implement partition explanation：
Cylinder pedestal is made up of oil sealing base (1) with spiral shell bud base (3), and oil sealing base (1) center is provided with a hole, its hole
In be provided with oil seal ring (2), spiral shell bud base (3) center is provided with interior spiral shell bud, and combination base center is equipped with can be adjusted flexibly support column
(A1, A2)；The support column (A1, A2) that is adjusted flexibly is provided with spiral shell bud and spiral shell bud base (3) near one end of spiral shell bud base (3)
Coordinate and spiral shell bud column length grows base and installs earthquake washer (5) and nut (6) additional, this most end is additionally provided with interior hex surface (N)
With outer-hexagonal face (W), this can be adjusted flexibly support column (A1, A2) and be provided with a circle groove with one end of push rod (D1, D2) contact, and
And the excessive step surface (R1, R2) of groove coincide with the feature of the locking contact surface of self-locking parts (B1, B2)；When enforcement is used
First by the stroke of actual demand add strokes of the 10MM to 30MM from oil cylinder during this oil cylinder, fix can use after oil cylinder it is common often
Support column (A1, A2) can be adjusted flexibly and be made the excessive step surface (R1, R2) of its groove with interior hexagonal or the adjustment of outer-hexagonal instrument
To specified location, earthquake washer (5) is then adjusted with nut (6) to locking.And gums that earthquake washer (5) two sides is provided with is oblique
With nut (6) bud twist lock tightly to one to facilitating nut (6) bud twist lock tightly to smoothness.And the gums that earthquake washer (5) two sides is provided with
Face directly and the mutually viscous effect for reaching shockproof turn is just tightly locked with nut (6) and spiral shell bud base (3).
It is automatically positioned locking process：Can be adjusted flexibly between support column (A1, A2) and push rod (D1, D2) equipped with a combination
Piston, is respectively positioning piston (7) and bearing pressure piston (8)：When oil cylinder E mouth oil-feeds, built-up piston can by push rod (D1, D2) with
Self-locking parts (B1, B2) between positioning piston (7) and bearing pressure piston (8) shift specified location onto toward SS areas together, this process
In due to self-locking parts (B1, B2) need take up space so as to occupy bearing pressure piston (8) in concave surface step redundant space,
Self-locking parts (B1, B2) have friction to slide with support column (A1, A2) can be adjusted flexibly during herewith.When built-up piston is pushed away
To the excessive step surface (R1, R2) of the groove that support column (A1, A2) can be adjusted flexibly, afterwards push rod (D1, D2) first stops, now fixed
Self-locking parts (B1, B2) propulsion can be adjusted flexibly the groove of support column (A1, A2) on the power transformation inclined-plane of position piston (7)
Excessively step surface (R1, R2), and then the detent (H) of positioning piston (7) is locked in self-locking parts (B1, B2) can be flexible
On the excessive step surface (R1, R2) of the groove of adjustment support column (A1, A2), so as to the recessed of support column (A1, A2) can be adjusted flexibly
The excessive step surface (R1, R2) of groove and the beginning characteristic face in push rod (D1, D2) the region between the heart and the diaphragm hole and the detent (H) of positioning piston (7)
Concave side be in close contact reach locating effect, that is, the purpose for having reached self-locking.
A spring (9) is now provided between push rod (D1, D2) and bearing pressure piston (8), it is sufficient to jack-up built-up piston, in case
Built-up piston unexpected reset sends out danger, even if oil cylinder oil leak or rail oil leak, built-up piston also will not be returned because of self gravitation
Position, reversely oil transmits pressure to built-up piston only to wait oil cylinder, and pressure is continuously increased until after the elastic force of opposing spring (9)
Built-up piston could reset, in bearing pressure piston (8) concave surface step have unnecessary space for unblock provide feasible condition.Certainly
The inwall of oil cylinder does not have lateral pressure part to rub during lock, greatly protects the accuracy life of oil cylinder inner wall.
Automatic unlocking process：When oil cylinder E mouths are fuel-displaced, the oil pressure in EE areas is reduced to power and oil cylinder S mouth oil-feeds make SS areas
Oil pressure give power increase, pressure be continuously increased until opposing spring (9) elastic force after first by built-up piston toward EE areas promote, and this
Actuating length is just the redundant space distance of concave surface step in bearing pressure piston (8), and positions the detent (H) of piston (7)
Concave side follow hard on and leave self-locking parts (B1, B2), be locked in the mistake of the groove that support column (A1, A2) can be adjusted flexibly
The self-locking parts (B1, B2) of degree step surface (R1, R2), in the oblique transformation thrust of beginning characteristic face in push rod (D1, D2) the region between the heart and the diaphragm hole
Under leave the excessive step surface (R1, R2) of the groove that support column (A1, A2) can be adjusted flexibly, so as to self-locking parts (B1, B2)
The redundant space of concave surface step in bearing pressure piston (8) is occupied indirectly, and then built-up piston continues to press on (D1, D2) and transports toward EE areas
The dynamic purpose for reaching automatic unlocking.
The precision that the present invention considers cylinder barrel wall is not frayed, installs simple, and latched position can be adjusted flexibly, and production is originally
Invention Product Process is simple, low cost, the part exchanging of convenient product of the present invention.
In sum, only it is a kind of currently preferred invention embodiment.It is every using the present invention analog structure with
Similar principle and its similar embodiment, should all be considered as protection scope of the present invention.
Claims (7)
1. a kind of safety precise can be adjusted flexibly self-locking oil cylinder, including combine base, support column (A1, A2), group can be adjusted flexibly
Close piston, push rod (D1, D2) and self-locking parts (B1, B2)；It is described combination base it is characterized in that：By oil sealing base (1) with
Spiral shell bud base (3) is constituted, and oil sealing base (1) center is provided with a hole, oil seal ring (2), spiral shell bud base (3) center are provided with its hole
Interior spiral shell bud is provided with, combination base center is equipped with and support column (A1, A2) can be adjusted flexibly；It is described be adjusted flexibly support column (A1,
A2) it is characterized in that：Support column (A1, A2) can be adjusted flexibly and be provided with spiral shell bud and spiral shell bud base near one end of spiral shell bud base (3)
(3) coordinate and spiral shell bud column length grows base and installs earthquake washer (5) and nut (6) additional, this most end is additionally provided with interior hex surface
(N) and outer-hexagonal face (W), this can be adjusted flexibly support column (A1, A2) to be provided with a circle with one end of push rod (D1, D2) contact recessed
Groove, and the excessive step surface (R1, R2) of groove is identical with the feature of the locking contact surface of self-locking parts (B1, B2)；It is described
Built-up piston is characterised by：It is made up of with bearing pressure piston (8) positioning piston (7), and this built-up piston is mounted in and can be adjusted flexibly
Support column (A1, A2) be provided between the push rod of blind hole (D1, D2), between bearing pressure piston (8) and push rod (D1, D2) be equipped with spring
(9), bearing pressure piston (8) is characterised by being provided with concave surface step with positioning piston (7) one end interstitial hole for contacting, and this step
Depth is more than the hanging platform of push rod (D1, D2) and has spring (9) sum, and positioning piston (7) is characterised by and self-locking parts
One end interstitial hole of (B1, B2) contact is provided with inclined-plane and detent (H), and this detent (H) is characterised by oil cylinder locking
When, the concave side of detent (H) and self-locking parts (B1, B2) are in close contact and reach locating effect；The push rod (D1, D2)
It is characterized in that：Push rod (D1, D2) is provided with hanging platform with one end that bearing pressure piston (8) is contacted and centre is provided with deep the region between the heart and the diaphragm hole, the region between the heart and the diaphragm hole
Beginning is provided with the face identical with the feature of the locking contact surface of self-locking parts (B1, B2)；The self-locking parts (B1, B2) its
It is characterised by：It is mounted in positioning piston (7), can be adjusted flexibly between support column (A1, A2) and push rod (D1, D2).
2. a kind of safety precise according to claim 1 can be adjusted flexibly self-locking oil cylinder, it is characterised in that：Also include self-locking
Parts (B1), it is shaped as spheroid, and the self-locking parts (B1) are mounted in positioning piston (7), support column can be adjusted flexibly
(A1) and push rod (D1) between.
3. a kind of safety precise according to claim 2 can be adjusted flexibly self-locking oil cylinder, it is characterised in that：Described can spirit
One end that adjustment support column (A1) living contacts with push rod (D1) is provided with a circle groove, and the excessive step surface (R1) of groove is provided with
Cambered surface, the diameter of the cambered surface coincide with the sphere diameter of spheroid self-locking parts (B1), also big including the diameter of the cambered surface
In the sphere diameter of spheroid self-locking parts (B1).
4. a kind of safety precise according to claim 2 and 3 can be adjusted flexibly self-locking oil cylinder, it is characterised in that：Described
Push rod (D1) is provided with hanging platform with one end that bearing pressure piston (8) is contacted and centre is provided with deep the region between the heart and the diaphragm hole, and the beginning in the region between the heart and the diaphragm hole is provided with cambered surface, institute
The sphere diameter of the diameter and spheroid self-locking parts (B1) of stating cambered surface coincide, also including the cambered surface with diameter greater than spheroid certainly
The sphere diameter of lock parts (B1).
5. a kind of safety precise according to claim 1,2,3 and 4 can be adjusted flexibly self-locking oil cylinder, and it belongs to same total
The inventive features of more than two of inventive concept be：Also include self-locking parts (B2), it is shaped as polyhedron, it is described from
Lock parts (B2) is mounted in positioning piston (7), can be adjusted flexibly between support column (A2) and push rod (D2).
6. a kind of safety precise according to claim 5 can be adjusted flexibly self-locking oil cylinder, it is characterised in that：Described can spirit
One end that adjustment support column (A2) living contacts with push rod (D2) is provided with a circle groove, and the excessive step surface (R2) of groove is provided with
Inclined-plane, the gradient on the inclined-plane contacts inclined-plane with the locking of polyhedron self-locking parts (B2) and coincide.
7. a kind of safety precise according to claim 5 and 6 can be adjusted flexibly self-locking oil cylinder, it is characterised in that：Described
Push rod (D2) is provided with hanging platform with one end that bearing pressure piston (8) is contacted and centre is provided with deep the region between the heart and the diaphragm hole, and the beginning in the region between the heart and the diaphragm hole is provided with inclined-plane, institute
The gradient and the locking of polyhedron self-locking parts (B2) for stating inclined-plane contacts inclined-plane and coincide.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611119496.XA CN106593997A (en) | 2016-11-28 | 2016-11-28 | Safe and precise self-locking oil cylinder capable of being flexibly adjusted |
| CN201711125431.0A CN107630861B (en) | 2016-11-28 | 2017-11-14 | Flexibly adjustable safety self-locking oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611119496.XA CN106593997A (en) | 2016-11-28 | 2016-11-28 | Safe and precise self-locking oil cylinder capable of being flexibly adjusted |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106593997A true CN106593997A (en) | 2017-04-26 |
Family
ID=58596366
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611119496.XA Pending CN106593997A (en) | 2016-11-28 | 2016-11-28 | Safe and precise self-locking oil cylinder capable of being flexibly adjusted |
| CN201711125431.0A Active CN107630861B (en) | 2016-11-28 | 2017-11-14 | Flexibly adjustable safety self-locking oil cylinder |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711125431.0A Active CN107630861B (en) | 2016-11-28 | 2017-11-14 | Flexibly adjustable safety self-locking oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN106593997A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502945A (en) * | 2020-04-22 | 2020-08-07 | 邵玉强 | Booster water pump with variable booster ratio |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1301026B (en) * | 1964-11-14 | 1969-08-14 | Reinhard Hoernlein Kg Holz Und | Hydropneumatic lifting unit, especially for height-adjustable tables and chairs |
| CN201661543U (en) * | 2010-02-09 | 2010-12-01 | 厦门大学 | Extending position self-locking type hydraulic cylinder |
| CN104006033A (en) * | 2014-05-09 | 2014-08-27 | 中船重工中南装备有限责任公司 | Powerful and mechanical automatic-locking hydraulic cylinder |
| CN104373413A (en) * | 2014-10-09 | 2015-02-25 | 吴贤卜 | Mechanical self-locking oil cylinder |
| CN204327646U (en) * | 2014-11-10 | 2015-05-13 | 常州瑞阳液压成套设备有限公司 | Mechanical self-locking hydro cylinder |
| CN105402189B (en) * | 2015-12-01 | 2017-04-05 | 中国船舶重工集团公司第七一九研究所 | The outboards device hydraulic cylinder for possessing auto lock and unlocking function |
| CN208185131U (en) * | 2016-11-28 | 2018-12-04 | 陈干惠 | A kind of safe self-locking oil cylinder being adjusted flexibly |
-
2016
- 2016-11-28 CN CN201611119496.XA patent/CN106593997A/en active Pending
-
2017
- 2017-11-14 CN CN201711125431.0A patent/CN107630861B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502945A (en) * | 2020-04-22 | 2020-08-07 | 邵玉强 | Booster water pump with variable booster ratio |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107630861A (en) | 2018-01-26 |
| CN107630861B (en) | 2024-02-27 |
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Application publication date: 20170426 |