CN208547548U - A kind of flexible wire reverse torsion machine - Google Patents
A kind of flexible wire reverse torsion machine Download PDFInfo
- Publication number
- CN208547548U CN208547548U CN201821143153.1U CN201821143153U CN208547548U CN 208547548 U CN208547548 U CN 208547548U CN 201821143153 U CN201821143153 U CN 201821143153U CN 208547548 U CN208547548 U CN 208547548U
- Authority
- CN
- China
- Prior art keywords
- shell
- hole
- flexible wire
- machine
- slide plate
- 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.)
- Active
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 238000012360 testing method Methods 0.000 claims abstract description 18
- 230000033001 locomotion Effects 0.000 claims abstract description 10
- 230000008878 coupling Effects 0.000 claims description 19
- 238000010168 coupling process Methods 0.000 claims description 19
- 238000005859 coupling reaction Methods 0.000 claims description 19
- 238000005192 partition Methods 0.000 claims description 12
- 239000004020 conductor Substances 0.000 claims description 11
- 238000009423 ventilation Methods 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000009661 fatigue test Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012913 prioritisation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of flexible wire reverse torsion machines, comprising shell, conducting wire self-clamping module, torsion modulus and adjust logging modle.Conducting wire self-clamping module provides one section of conducting wire to be measured between fixing end and rotary support, torsion modulus makes the rotary motion of driving motor output shaft be changed into the reciprocating rotation of sector gear by crank connecting link and gear mechanism, and then conducting wire reversed torsion to be measured is driven to carry out fatigue test, FM record mechanism adjusts driving motor revolving speed by machine governor to adjust test frequency, records and show the torsional frequency and number of flexible wire reverse torsion machine.The utility model structure is simple, low in energy consumption, and noise is small, the service life is long, manufactures, is easy to maintain.
Description
Technical field
The utility model relates to material science and experimental technique more particularly to a kind of flexible wire reverse torsion machines.
Background technique
Fatigue refers to the performance change that material occurs under the repeated action of load.Fatigue failure is a kind of common engineering
Structure breakoff phenomenon.
Flexible wire is indispensable a kind of material in engineering structure, is widely applied in various mechanical structures, such as machine
Tool arm etc..The different components of many mechanical structures are connected by various flexible wires, to reach energy supply or transmitting signal
The purpose of.And these structures are usually present relative motion, this relative motion can cause the torsion of conducting wire.In torsion repeatedly
In the process, because of fatigue problem rupture failure can occur for conducting wire.The torsional fatigue life of conducting wire is for this kind of engineering structure
Reliability plays very crucial effect, it is therefore necessary to carry out torsional fatigue performance test to this kind of flexible wire.
It is basic without this kind of for conducting wire at present due to the load difficulty and load magnitude of flexible wire are too small etc.
The fatigue tester of flexible material.There is very big drawback in the more existing design scheme about this kind of testing machine, such as lead
Line support pattern can cause additional load, transmission mechanism, and there are sliding frictions etc., and machine loss speed to be caused to accelerate and be difficult to control
Experimental precision etc..
Utility model content
Technical problem to be solved in the utility model is provided a kind of soft for defect involved in background technique
Property conducting wire reverse torsion machine, automatically records number of torsions, real-time display current test frequency shortens test period, structure
Simply, low in energy consumption, it manufactures, is easy to maintain.
The utility model uses following technical scheme to solve above-mentioned technical problem:
A kind of flexible wire reverse torsion machine comprising shell, conducting wire self-clamping module, torsion modulus and adjusts record mould
Block；
The conducting wire self-clamping module includes first to third column, top plate, slide plate and turntable；
The top plate, slide plate, turntable are in the form of annular discs, are from top to bottom coaxially disposed；Wherein, the edge of the slide plate is uniform
It is passed through equipped with first to third through-hole, for described first to third column；
Described first is arranged in parallel to third column, and lower end is connected with the shell, passes through the slide plate and upper end is equal
It is connected with the top plate；
The slide plate is equipped with the first lockable mechanism, and the slide plate is glided along described first to third column
It moves and carries out locking；
The center point of the slide plate lower surface is equipped with the first conductor grip, and the center point of the disk upper surface is equipped with second and leads
Wire clamp, first conductor grip, the second conductor grip are used to cooperate the flexible wire for being fixed for test；
Partition is equipped in the shell, the partition is equipped with fourth hole；The shell is equipped with fifth hole and the
Six through-holes；
The torsion modulus is arranged in the shell, includes driving motor, shaft coupling, connecting rod, sector gear and cylinder
Gear；
The driving motor is fixed in the shell, and output shaft passes through under the fourth hole and the shaft coupling
End is connected；
The upper surface of the shaft coupling is equipped with sliding slot, and sliding block is equipped in the sliding slot, and the sliding block is equipped with the second lock
Locking mechanism enables the sliding block free to slide along the sliding slot and carries out locking；
The sector gear, roller gear are arranged on the partition, wherein the roller gear and the turntable are same
Axis setting, and the upper end of roller gear shaft passes through the fifth hole and the disk lower surface the center point is connected；
The sector gear and roller gear engagement；
Described connecting rod one end and the sliding block are hinged, and the other end and the sector gear are hinged；
The shaft coupling, sliding block and connecting rod form crank link mechanism, for converting connecting rod for the continuous rotation of motor
Reciprocating motion, drive sector gear reciprocally swinging and then drive the reciprocal twist motion of the turntable；
The adjusting logging modle includes Hall sensor, machine governor, power module, switch, frequency meter and counting
Device；
The Hall sensor, machine governor, power module are arranged in the shell, the switch, frequency meter,
Counter is respectively provided on the housing；
The Hall sensor is connected with the frequency meter, counter respectively, for incuding the revolving speed of the driving motor
And pass it to the frequency meter and counter；
The frequency meter is used to calculate the torsional frequency of flexible wire reverse torsion machine and is shown；
The counter is for being counted and being shown to the number of torsions of flexible wire reverse torsion machine；
The output end of the machine governor is connected with the driving motor, and adjusting knob is naked by the 6th through-hole
It is exposed at outside the shell, for adjusting the revolving speed of the driving motor；
The power module by it is described switch respectively with the Hall sensor, machine governor, frequency meter, counter
It is connected, for powering；
The switch is for opening or closing flexible wire reverse torsion machine.
As a kind of further prioritization scheme of flexible wire reverse torsion machine of the utility model, the shell is in length
Cube which is provided with several ventilation holes for heat dissipation.
As a kind of further prioritization scheme of flexible wire reverse torsion machine of the utility model, first locking
Mechanism, the second lockable mechanism include locking screw hole and locking bolt；Wherein, the locking screw hole setting of first lockable mechanism
It is connected on the side of the slide plate with the first through hole；The locking screw hole of second lockable mechanism is arranged described
On sliding block, enables the locking bolt of the second lockable mechanism to pass through the sliding block and be against on the upper surface of the shaft coupling.
The utility model compared with the prior art by using the above technical solution, has following technical effect that
1. the torsional fatigue test of easy progress conducting wire can be carried out；
2. conducting wire self-clamping module is disposed vertically conducting wire, conductive line bends load caused by gravity, accurate Control experiment are avoided
Load and clamping is simple, testpieces easy to disassemble；
3. test frequency (0Hz ~ 60Hz) is adjustable, frequency adjusts accurate simplicity and adjustable range is wide, when shortening test
Between, and by adjusting test frequency, the intrinsic frequency of conducting wire and machine is avoided, conducting wire caused by avoiding because of resonance is additional to be become
Noise and abrasion caused by shape and element part vibrate；
4. test load is adjustable, conducting wire windup-degree (can be passed through at a distance from motor output shaft by adjusting eccentric wheel
Position of the second lockable mechanism adjusting slider on the sliding slot of shaft coupling upper surface) it is adjusted, the torsion under different loads can be carried out
Turn fatigue test；And the transmission mechanism that crank link mechanism and gear mechanism form is accurate, efficiently and the service life is long.
5. can be to automatically recording conducting wire torsional fatigue test number；
6. can display real-time current test frequency (cooperation counter realizes accurate counting)；
7. structure is simple, low in energy consumption, noise is small, the service life is long, manufactures, is easy to maintain.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model；
Fig. 2 is the left view of the utility model；
Fig. 3 is the structural schematic diagram of torsion modulus in the utility model.
In figure, 1- shell, the second column of 2-, 3- top plate, 4- slide plate, 5- turntable, the second conductor grip of 6-, to be tested soft of 7-
Property conducting wire, the 6th through-hole of 8-, 9- switch, 10- frequency meter, 11- counter, 12- ventilation hole, the first conductor grip of 13-, 14- partition,
15- roller gear, 16- sector gear, 17- connecting rod, 18- shaft coupling, the sliding slot on 19- shaft coupling upper surface, 20- sliding block, 21-
Driving motor, 22- power module, 23- machine governor.
Specific embodiment
The technical solution of the utility model is described in further detail with reference to the accompanying drawing:
The utility model can be embodied in many different forms, and should not be assumed that be limited to the embodiments described herein.
On the contrary, it is thorough and complete to these embodiments are provided so that the disclosure, and this reality will be given full expression to those skilled in the art
With novel range.In the accompanying drawings, for the sake of clarity it is exaggerated component.
It will be appreciated that though term first, second, third, etc., which may be used herein, describes each element, component and/or portion
Point, but these elements, component and/or part should not be limited by these terms.These terms be used only for by element, component and/or
Part mutually distinguishes.Therefore, first element discussed below, component and/or part are imparted knowledge to students without departing substantially from the utility model
Under the premise of can become second element, component or part.
As shown in Figure 1, Figure 2, Figure 3 shows, the utility model discloses a kind of flexible wire reverse torsion machines, include shell
Body, conducting wire self-clamping module, torsion modulus and adjusting logging modle；
The conducting wire self-clamping module includes first to third column, top plate, slide plate and turntable；
The top plate, slide plate, turntable are in the form of annular discs, are from top to bottom coaxially disposed；Wherein, the edge of the slide plate is uniform
It is passed through equipped with first to third through-hole, for described first to third column；
Described first is arranged in parallel to third column, and lower end is connected with the shell, passes through the slide plate and upper end is equal
It is connected with the top plate；
The slide plate is equipped with the first lockable mechanism, and the slide plate is glided along described first to third column
It moves and carries out locking；
The center point of the slide plate lower surface is equipped with the first conductor grip, and the center point of the disk upper surface is equipped with second and leads
Wire clamp, first conductor grip, the second conductor grip are used to cooperate the flexible wire for being fixed for test；
Partition is equipped in the shell, the partition is equipped with fourth hole；The shell is equipped with fifth hole and the
Six through-holes.
As shown in figure 3, the torsion modulus is arranged in the shell, it include driving motor, shaft coupling, connecting rod, sector
Gear and roller gear；
The driving motor is fixed in the shell, and output shaft passes through under the fourth hole and the shaft coupling
End is connected；
The upper surface of the shaft coupling is equipped with sliding slot, and sliding block is equipped in the sliding slot, and the sliding block is equipped with the second lock
Locking mechanism enables the sliding block free to slide along the sliding slot and carries out locking；
The sector gear, roller gear are arranged on the partition, wherein the roller gear and the turntable are same
Axis setting, and the upper end of roller gear shaft passes through the fifth hole and the disk lower surface the center point is connected；
The sector gear and roller gear engagement；
Described connecting rod one end and the sliding block are hinged, and the other end and the sector gear are hinged；
The shaft coupling, sliding block and connecting rod form crank link mechanism, for converting connecting rod for the continuous rotation of motor
Reciprocating motion, drive sector gear reciprocally swinging and then drive the reciprocal twist motion of the turntable；
The adjusting logging modle includes Hall sensor, machine governor, power module, switch, frequency meter and counting
Device；
The Hall sensor, machine governor, power module are arranged in the shell, the switch, frequency meter,
Counter is respectively provided on the housing；
The Hall sensor is connected with the frequency meter, counter respectively, for incuding the revolving speed of the driving motor
And pass it to the frequency meter and counter；
The frequency meter is used to calculate the torsional frequency of flexible wire reverse torsion machine and is shown；
The counter is for being counted and being shown to the number of torsions of flexible wire reverse torsion machine；
The output end of the machine governor is connected with the driving motor, and adjusting knob is naked by the 6th through-hole
It is exposed at outside the shell, for adjusting the revolving speed of the driving motor；
The power module by it is described switch respectively with the Hall sensor, machine governor, frequency meter, counter
It is connected, for powering；
The switch is for opening or closing flexible wire reverse torsion machine.
The shell is in cuboid, which is provided with several ventilation holes for heat dissipation.
First lockable mechanism, the second lockable mechanism include locking screw hole and locking bolt；Wherein, first lock
The locking screw hole of locking mechanism is arranged on the side of the slide plate and the first through hole is connected；Second lockable mechanism
The setting of locking screw hole on the slide block, enable the locking bolt of the second lockable mechanism pass through the sliding block be against it is described
On the upper surface of shaft coupling.
In practical applications, shell can be by front side board, back side panel, left plate, right side plate, upper cover plate and lower plate structure
At box like structure, partition is linked together by six roots of sensation partition column with upper cover plate, to support connecting rod, sector gear, circle
Stud wheel.Speed regulation hole is provided with above right side plate, the knob of the machine governor for connecting with motor driver exposes.Left side
Plate, right side plate are provided with ventilation hole, the ventilation and heat for driving motor, power module and machine governor.This is practical new
Type is simple and compact for structure, and production, maintenance cost are low.
In practical applications, the connection type of connecting rod and sector gear is more flexible, can directly by one end of connecting rod and
The covering of the fan of sector gear carries out hinged；One swing bar, the swing bar can also be set on the covering of the fan at sector gear shaft
Preferentially it is arranged on the central axes of sector gear covering of the fan, then again carries out one end of connecting rod and the swing bar hinged.
Using the second way in Fig. 3.
Slide plate is adjusted to suitable position before the test, so that the flexible wire that needs are tested is placed vertically and tight, side
Just it is loaded.Pass through sliding up and down so as to adjust the length for the flexible wire for needing to test for upper slide.This mode is kept
Conducting wire is placed vertically, and excluding gravity influences, so that test section length adjustment is convenient, is able to carry out the conducting wire test of different lengths.
Pass through position of the second lockable mechanism adjusting slider on the sliding slot of shaft coupling upper surface, the movement of adjustable connecting rod
Amplitude, and then change the rotational angle of sector gear, change the windup-degree of conducting wire, carries out the torsional fatigue examination of different amplitudes
It tests.This mode adjusts simplicity, sliding friction is not present during test, transmission efficiency is high, and component wear is small, and the service life is long, makes
With conveniently.
The revolving speed of driving motor is directly adjusted by machine governor, so that the torsional frequency of flexible wire is adjusted, it is this
Mode is easy directly, and controls accurately, conveniently avoids the resonant frequency of machine and testpieces.
Those skilled in the art can understand that unless otherwise defined, all terms used herein (including skill
Art term and scientific term) there is meaning identical with the general understanding of those of ordinary skill in the utility model fields
Justice.It should also be understood that those terms such as defined in the general dictionary should be understood that with upper with the prior art
The consistent meaning of meaning hereinafter, and unless defined as here, will not with idealization or meaning too formal come
It explains.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
The utility model processed, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done,
It should be included within the scope of protection of this utility model.
Claims (3)
1. a kind of flexible wire reverse torsion machine, which is characterized in that comprising shell, conducting wire self-clamping module, torsion modulus and
Adjust logging modle；
The conducting wire self-clamping module includes first to third column, top plate, slide plate and turntable；
The top plate, slide plate, turntable are in the form of annular discs, are from top to bottom coaxially disposed；Wherein, the edge of the slide plate is uniformly provided with
First passes through to third through-hole, for described first to third column；
Described first is arranged in parallel to third column, and lower end is connected with the shell, pass through the slide plate and upper end and institute
Top plate is stated to be connected；
The slide plate is equipped with the first lockable mechanism, and the slide plate is slided up and down simultaneously along described first to third column
Carry out locking；
The center point of the slide plate lower surface is equipped with the first conductor grip, and the center point of the disk upper surface is equipped with the second conducting wire
Folder, first conductor grip, the second conductor grip are used to cooperate the flexible wire for being fixed for test；
Partition is equipped in the shell, the partition is equipped with fourth hole；The shell is equipped with fifth hole and the 6th and leads to
Hole；
The torsion modulus is arranged in the shell, includes driving motor, shaft coupling, connecting rod, sector gear and roller gear；
The driving motor is fixed in the shell, and output shaft passes through the fourth hole and the lower end of the shaft coupling is solid
Even；
The upper surface of the shaft coupling is equipped with sliding slot, and sliding block is equipped in the sliding slot, and the sliding block is equipped with the second locking machine
Structure enables the sliding block free to slide along the sliding slot and carries out locking；
The sector gear, roller gear are arranged on the partition, wherein the roller gear and the turntable are coaxially set
It sets, and the upper end of roller gear shaft passes through the fifth hole and the disk lower surface the center point is connected；
The sector gear and roller gear engagement；
Described connecting rod one end and the sliding block are hinged, and the other end and the sector gear are hinged；
The shaft coupling, sliding block and connecting rod form crank link mechanism, for converting the past of connecting rod for the continuous rotation of motor
Multiple movement drives sector gear reciprocally swinging and then drives the reciprocal twist motion of the turntable；
The adjusting logging modle includes Hall sensor, machine governor, power module, switch, frequency meter and counter；
The Hall sensor, machine governor, power module are arranged in the shell, the switch, frequency meter, counting
Device is respectively provided on the housing；
The Hall sensor is connected with the frequency meter, counter respectively, for incuding the revolving speed of the driving motor and inciting somebody to action
It passes to the frequency meter and counter；
The frequency meter is used to calculate the torsional frequency of flexible wire reverse torsion machine and is shown；
The counter is for being counted and being shown to the number of torsions of flexible wire reverse torsion machine；
The output end of the machine governor is connected with the driving motor, adjusting knob by the 6th through-hole it is exposed
Outside the shell, for adjusting the revolving speed of the driving motor；
The power module by it is described switch respectively with the Hall sensor, machine governor, frequency meter, counter phase
Even, for powering；
The switch is for opening or closing flexible wire reverse torsion machine.
2. flexible wire reverse torsion machine according to claim 1, which is characterized in that the shell is in cuboid,
It which is provided with several ventilation holes for heat dissipation.
3. flexible wire reverse torsion machine according to claim 1, which is characterized in that first lockable mechanism,
Second lockable mechanism includes locking screw hole and locking bolt；Wherein, the locking screw hole of first lockable mechanism is arranged in institute
It states on the side of slide plate and the first through hole is connected；The locking screw hole of second lockable mechanism is arranged in the sliding block
On, enable the locking bolt of the second lockable mechanism to pass through the sliding block and is against on the upper surface of the shaft coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821143153.1U CN208547548U (en) | 2018-07-19 | 2018-07-19 | A kind of flexible wire reverse torsion machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821143153.1U CN208547548U (en) | 2018-07-19 | 2018-07-19 | A kind of flexible wire reverse torsion machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208547548U true CN208547548U (en) | 2019-02-26 |
Family
ID=65424891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821143153.1U Active CN208547548U (en) | 2018-07-19 | 2018-07-19 | A kind of flexible wire reverse torsion machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208547548U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801810A (en) * | 2018-07-19 | 2018-11-13 | 南京航空航天大学 | A kind of flexible wire reverse torsion machine |
| CN112304783A (en) * | 2020-10-22 | 2021-02-02 | 江苏三亿检测技术有限公司 | Wire dynamic torsion device and use method thereof |
-
2018
- 2018-07-19 CN CN201821143153.1U patent/CN208547548U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801810A (en) * | 2018-07-19 | 2018-11-13 | 南京航空航天大学 | A kind of flexible wire reverse torsion machine |
| CN112304783A (en) * | 2020-10-22 | 2021-02-02 | 江苏三亿检测技术有限公司 | Wire dynamic torsion device and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108801810A (en) | A kind of flexible wire reverse torsion machine | |
| CN208547548U (en) | A kind of flexible wire reverse torsion machine | |
| CN204389872U (en) | For testing the vibration testing machine of photographing device | |
| CN107703012B (en) | Variable-temperature indexable micro-nano indentation testing device | |
| CN206223578U (en) | Cable twists fatigue test device | |
| CN108931453A (en) | Small-sized pin disk-type friction abrasion tester | |
| KR20130014220A (en) | Durability test equipiment of wiring-harness for engine room | |
| CN108398261A (en) | A kind of gear transmission efficiency detection device with retarder | |
| CN113551980A (en) | Multi-shaft type tensile test testing machine and testing method | |
| US4347734A (en) | Rotary viscometer | |
| CN112444456B (en) | Material mechanics test device | |
| JP6263149B2 (en) | Viscoelastic property test equipment | |
| CN113063587A (en) | Agricultural self-propelled mechanical gearbox test bench | |
| CN117147146A (en) | Hinge life testing machine and control system | |
| CN115561092B (en) | Circuit board bending property testing device | |
| CN115791443B (en) | High-insulation composite material bending test instrument | |
| CN102636679B (en) | Automatic test apparatus for friction voltage | |
| CN110864861A (en) | Vibration test bed and working method thereof | |
| CN110132769A (en) | A kind of multi-functional endurance test equipment and test method of flexible material sample | |
| CN209247609U (en) | A kind of film and basal body binding force stepper motor drive shrinking connecting-rod transmission device | |
| CN209166833U (en) | A kind of detection device of engine crankshaft | |
| CN112903499B (en) | Rolling sliding torsion test device based on oscillating bar mechanism | |
| CN113049422A (en) | Wire bending device for data line bending performance test | |
| CN208789076U (en) | A kind of track regulating device of Kapton stretching-machine | |
| CN208297512U (en) | A kind of high performance concrete early anti-cracking behavior energy experimental rig |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |