CN207318738U - A kind of hydraulic pressure support, which declines, shakes sensor device - Google Patents
A kind of hydraulic pressure support, which declines, shakes sensor device Download PDFInfo
- Publication number
- CN207318738U CN207318738U CN201720750346.2U CN201720750346U CN207318738U CN 207318738 U CN207318738 U CN 207318738U CN 201720750346 U CN201720750346 U CN 201720750346U CN 207318738 U CN207318738 U CN 207318738U
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- hydraulic
- probe
- microseismic sensors
- oil
- microseism
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- 238000012544 monitoring process Methods 0.000 claims abstract description 76
- 239000000523 sample Substances 0.000 claims abstract description 47
- 239000011435 rock Substances 0.000 claims abstract description 23
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 17
- 230000008878 coupling Effects 0.000 claims abstract description 12
- 238000010168 coupling process Methods 0.000 claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 239000003921 oil Substances 0.000 claims description 42
- 238000009434 installation Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 8
- 230000007423 decrease Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 238000010276 construction Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 238000007569 slipcasting Methods 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 230000001808 coupling effect Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
Decline the utility model discloses a kind of hydraulic pressure support and shake sensor device, its composition includes microseismic sensors, the outer connecting structure for being arranged on microseismic sensors both ends, hydraulic support mechanism and the hydraulic system that hydraulic oil is provided for hydraulic pressure support, the composition of the microseismic sensors includes microseism probe and that clasps microseism probe clasps component, it is described clasp component for can make clasped microseism pop one's head in downside surface and its be placed in interior monitoring wall surface of the hole and contact coupling；The hydraulic support mechanism is secondary for two, is separately positioned on and clasps component dorsal surface middle separated time both ends, microseism probe downside surface and support plate under hydraulic support mechanism effect with monitoring holes inner wall efficient coupling, to monitor the vibrations of rock mass.The utility model solves prior art microseismic sensors and contacts the problems such as poor and easy for installation property of coupling is poor with monitoring wall surface of the hole, improve the monitoring accuracy of microseismic sensors, microseismic sensors device can recycle reuse, reduce the engineering cost of Microseismic monitoring system.
Description
Technical field
The utility model belongs to engineering geology On Microseismic Monitoring Technique field, and in particular to a kind of microseismic sensors are recyclable heavy
The hydraulic pressure support used again, which declines, shakes sensor device.
Background technology
Rock (body) deformation failure in engineering construction, particularly rock burst dynamic disaster, can directly jeopardize the safety of engineering
Construction, or even devastating impact can be caused, therefore to rock (body) stability and rock burst dynamic disaster progress effectively monitoring and in advance
Survey, be one of important content of engineering safety construction.A kind of important means of the microseism as non-destructive monitoring, is used for engineering construction
In rock (body) stability and rock burst dynamic disaster monitoring and prediction.
In underground engineering wall rock excavates process of construction, in order to the failure and deformation of surrounding rocks being likely to occur and dynamic disaster into
Row Accurate Prediction, microseismic monitoring sensor need to be fixed on monitored country rock region in advance before engineering excavation.Utilize microseism
Technology accurately determines that the position of surrounding rock failure and dynamic disaster may occur, and microseismic sensors need to be in the form of three-dimensional spatial distribution
It is arranged in around monitored rock mass, and the number of sensors arranged is more, distribution is more reasonable, and monitoring effect is relatively more accurate.
In order to realize to the monitoring in real time of rock excavation process, it is necessary to before rock (body) excavation, prison is drilled out in stone (body) using drilling machine
Gaging hole, installs microseismic sensors in monitoring holes.The depth of monitoring holes depends on the buried depth excavated and monitored scope, monitoring holes
Depth increase with engineering buried depth, the increase of monitored scope, some monitoring holes are as deep as tens meters, or even rice up to a hundred.Depth ratio
Larger monitoring holes, it usually needs micro seismic monitoring is carried out to the different parts of monitoring holes using multiple microseismic sensors, and is monitored
Kong Yueshen, the microseismic sensors of installation are more, due to above and below monitoring holes it is difficult to ensure that with one heart, wall surface of the hole be difficult it is smooth always, because
The installation of this microseismic sensors is more difficult.
Microseismic sensors are expensive, in order to fetch sensor after monitoring, reduce engineering cost, micro- in engineering
Microseismic sensors are directly placed in monitoring holes by the installation at shake monitoring sensor scene, generally use, by being remained in monitoring holes
Medium of the water as signal transmission between rock mass and sensor, but this method has the disadvantages that：First, monitoring holes direction must
Must downwards, for the fully horizontal or upward monitoring holes for having certain angle, this method does not apply to；Secondly, for tilting or downwards
Monitoring holes, it is necessary to rock mass is relatively complete, monitoring holes interior energy maintains the water of injection without being lost in along the crack in monitoring holes,
Either there is infiltration from inside to outside from monitoring holes, can ensure that sensor is in water all the time, but on-site actual situations are more difficult to be reached
To the requirement；3rd, although water can be as the couplant of signal transmission, the density of water is relatively low, its laser propagation effect is not so good as
Directly effectively contacted with palisades.4th, since liquid can only transmit compressional wave, it is impossible to shear wave is transmitted, and scene determines rock rupture
The position of signal usually and must rely on shear wave signal, therefore this method causes a large amount of monitoring signals loss, monitoring result it is reliable
Property substantially reduces.
In order to ensure being placed in monitoring holes efficient coupling between microseismic sensors and monitoring hole wall, some is in engineering site
Using the joints cement into monitoring holes, sensor and palisades are made to pour as an entirety.This method has the disadvantage that again：First,
Sensor after pouring is not recyclable, causes financial cost height；Secondly, if pouring rear discovery sensor no signal or signal not
It is good, it can not be checked, it is not only time-consuming and laborious in order to ensure monitoring effect, it is necessary to punch and install microseismic sensors again, also
Cause financial cost excessive；3rd, cement mortar is injected into monitoring holes, because monitoring holes are deeper, not only sensor mount position
Slip casting effect is difficult to ensure, it is possible that sensor mount position fails to realize the situation of effect slip casting, can cause sensor not
Coupled with monitoring holes palisades and without monitoring signals, and monitoring holes are deeper, total contraction distortion amount after what is poured the cement solidifies is got over
Greatly, the signal transmission cable together with cementitious can bear pulling force because cement shrinkage deforms, and cause effectively to transmit
Signal；4th, usually moister in monitoring holes, pouring rear cement slurry sets needs longer cycle, and the time limit that can cause to construct prolongs
It is long；5th, the explosive in digging process is blown out, it is possible that slip casting face relaxes with rock wall surface, causes monitored signal to transmit
Validity reduce；6th, installation process is time-consuming, laborious, it is necessary to which a series of specialty grouting equipments and slip casting personnel are, it is necessary to a large amount of
Manually.
In engineer application, also have using Simple fixing device, microseismic sensors are fixed in a specific device, Ran Houyong
Rigid non-movable metallic rod is fixed after microseismic sensors are sent to installation position, but has the following disadvantages：First,
This method is usually applicable only to the shallower monitoring holes of depth, and need monitoring holes completely with one heart, hole wall it is smooth, but practice of construction
Middle these requirements are difficult to ensure；Secondly, erecting device size is big, is only applicable to the monitoring holes being relatively large in diameter, cause monitoring holes into
This height；3rd, whole transmission pole and mounting structure are to be inserted into by applying pressure hardness in monitoring holes in monitoring holes, not only
Frictional force is big, and easily grind away cable or microseismic sensors, are also easy to be snapped in monitoring holes in privileged site, can not send to specific
Installation position；4th, installation process is time-consuming, laborious, it is necessary to expend a large amount of artificial.These above-mentioned problems, cause microseismic sensors
It is restricted in the monitoring holes bigger applied to depth.
Thus, it is how convenient, effectively microseismic sensors are installed in monitoring holes, and make the microseismic sensors after installation
Effectively coupled with hole wall, be still the difficult point of current field monitoring and research, in particular for the multiple microseismic sensors of use to not
The deep monitoring holes of micro seismic monitoring are carried out with position, it is especially true.
The content of the invention
Present situation and deficiency of the utility model for the On Microseismic Monitoring Technique of the prior art, it is desirable to provide a kind of hydraulic pressure support
Decline shake sensor device, effectively contacts coupling to solve microseismic sensors with monitoring holes, recycling is reused and easy for installation
The problems such as property, improve the accuracy of micro seismic monitoring, reduces the use cost of Microseismic monitoring system.
Hydraulic pressure support provided by the utility model, which declines, shakes sensor device, its composition includes microseismic sensors, sets
Put the outer connecting structure at microseismic sensors both ends, hydraulic support mechanism and the hydraulic system that hydraulic oil is provided for hydraulic pressure support, institute
State the composition of microseismic sensors include microseism probe and clasp microseism probe clasp component, the component of clasping is can make to be embraced
Microseism probe downside surface and its held are placed in interior monitoring wall surface of the hole and contact coupling；The hydraulic support mechanism is secondary for two,
It is separately positioned on and clasps component dorsal surface middle separated time both ends, its composition includes hydraulic cylinder, piston and support plate, and hydraulic cylinder leads to
Cross bottom face non-supported with support plate or clasp component back surface and be connected, piston is by piston rod and clasps component back surface or support plate
The connection of non-supported face, hydraulic cylinder hydraulic chamber hydraulic oil inlet and exports the oil feed line and oil return line with hydraulic system respectively
Connection, microseism probe downside surface and support plate hydraulic fluid pressure effect under with monitoring holes inner wall efficient coupling, to monitor rock
The vibrations of body.
In order to preferably solve technical problem to be solved in the utility model, also following technology can be further taken to arrange
Apply.Following items technical measures, can individually take, and also can be combined and take or even generally take.
The component of clasping is the probe sleeve being made of the straight barrel and cone cylinder head of hatch frame, probe sleeve inner cavity
The shape and structure that shape and structure is popped one's head in microseism matches, and makes to be placed in microseism probe downside surface and microseism in probe sleeve
Tapered end of popping one's head in is exposed.
The tail end of the probe sleeve is provided with the end cap that screw thread pair couples with sleeve body, and microseism probe passes through end cap
It is fixedly mounted in sleeve cavity body.
The oil cylinder is connected by bottom with the non-supported face of support plate, and piston is by piston rod and clasps component back surface company
Connect.The support plate can be an integrally-built support plate, and two oil cylinders are non-supported by bottom and same support plate
Face connects；Can also be the support plate of two absolute construction, two oil cylinders are non-supported by its bottom and two support plates respectively
Face connects.The support plate of the hydraulic support mechanism, the plate face of its support-side is with monitoring the matched cambered surface of wall surface of the hole.
The bindiny mechanism includes link and screw shell, and described link one end is fixed with microseismic sensors one end to be connected
Connect, the other end is hinged by hinged structure with screw shell.The link may be designed to by matching with microseismic sensors
The linking arm of annulus, connector and two warpage structures is formed, and two linking arms are symmetrical arranged, and one end is fixedly connected with annulus,
The other end is connected with connector, and link is hinged by connector and screw shell.
The composition of the hydraulic system include one end be connected with hydraulic oil container, the other end and hydraulic cylinder hydraulic chamber connection
Oil feed line and oil return line, are set on oil feed line by pressure oil pump, control valve and oil pressure gauge, and control is provided with oil return line
Valve processed.
Declined using hydraulic pressure support provided by the utility model and shake sensor device progress micro seismic monitoring, when monitoring holes compare
Deep, can be declined shake sensor device connection by the hydraulic pressure support for providing multiple inventions, be inserted in monitoring holes to different portions
Position carries out micro seismic monitoring.
Hydraulic pressure support provided by the utility model, which declines, shakes sensor device, solves microseismic sensors effectively installation and coupling
The problem of conjunction, has filled up technological gap.Its outstanding feature：First, not only microseismic sensors installation is simple, easy, has saved big
Manpower is measured, also overcomes the influence of drilling different depth, different directions；Second, can during the test to microseismic sensors into
Row checks that the recycling for also achieving microseismic sensors is reused, and reduces use cost；3rd, the hydraulic pressure support of ingehious design
Mechanism, it is ensured that remain to effectively make microseism probe couple with the wall of a borehole under conditions of rock crushing or drilling depth；4th, support
Plate supporting surface is designed to and monitoring wall surface of the hole match arc shape face, it is ensured that coupling effect and monitoring reliability.Briefly summarized, this reality
Installation, coupling effect are not only ensured with new, improves installation effectiveness, also ensures the recycling of microseismic sensors with repeating profit
With having saved cost.
Brief description of the drawings
Fig. 1 is the microseismic detection apparatus structure schematic diagram of the utility model.
Fig. 2 is B-B direction in Fig. 1 (vertical view) structure diagram.
Fig. 3 is A-A structure diagrams in Fig. 1.
Fig. 4-1 is the connecting bracket 10 in microseismic detection device and the connection structure schematic front view of screw shell.
Fig. 4-2 is the connecting bracket 10 in microseismic detection device and the connection structure schematic top plan view of screw shell.
In above-mentioned attached drawing, 1- hydraulic cylinders；2- probe sleeves；3- microseisms are popped one's head in；4- hydraulic chamber；5- end caps；6- pistons
Bar；7- pistons；8- support plates；9- screw shells；10- links；11- pressure oil pumps；The first control valves of 12-；13- oil pressure gauges；
14- oil feed lines；15- oil return lines；The second control valves of 16-；17- hydraulic oil containers.
Embodiment
The embodiment of the utility model is provided below in conjunction with the accompanying drawings, and by embodiment to microseism described in the utility model
The microseism monitoring system of the recyclable reuse of sensor is described further.
The hydraulic pressure support of the present embodiment, which declines, shakes sensor device, and for its structure as shown in Fig. 1-Fig. 4-2, composition includes one
A microseismic sensors, are arranged on the outer connecting structure at microseismic sensors both ends, hydraulic support mechanism and provide hydraulic pressure for hydraulic pressure support
The hydraulic system of oil.The microseismic sensors are recoverable microseismic sensors, it, which is formed, includes microseism probe 3, clasps microseism
The probe sleeve 2 of probe, the end cap 5 probe being fixed in probe sleeve, the probe sleeve is by the straight of hatch frame
Cylinder and cone cylinder head are formed, and the planform that the planform of probe sleeve inner cavity is popped one's head in microseism matches, makes to be placed in spy
Microseism probe downside surface and microseism probe tapered end in headgear cylinder is exposed, makes the microseism probe downside surface being installed in it
Coupling is contacted with monitoring wall surface of the hole；The hydraulic support mechanism is secondary for two, is separately positioned on probe sleeve dorsal midline both ends, its
Composition includes hydraulic cylinder 1, piston 7 and support plate 8, and hydraulic cylinder is connected by bottom with the non-supported face of support plate, and piston leads to
Piston rod 6 is crossed to be connected with the probe sleeve back side, the hydraulic oil inlet of hydraulic cylinder hydraulic chamber 4 and outlet respectively with hydraulic system
Oil feed line 14 is connected with oil return line 15, and the support-side plate face of microseism probe downside surface and support plate is in hydraulic oil pressure masterpiece
With lower with monitoring holes inner wall efficient coupling, to monitor the vibrations of rock mass；The support-side plate face of support plate 8 is with monitoring wall surface of the hole
The cambered surface matched somebody with somebody.The external link structure is made of link 10, screw shell 9, and wherein link with microseismic sensors again by consolidating
Surely the linking arm of the annulus, connector and the two warpage structures that connect is formed, and two linking arms are symmetrical arranged, and one end is consolidated with annulus
Fixed connection, the other end are connected with connector, and link is connected through head and is hinged with screw shell.The structure of the hydraulic system
Into the oil feed line 14 and oil return line being connected including one end with hydraulic oil container 17, the other end and hydraulic cylinder hydraulic chamber 4 connect
15, set on oil feed line by pressure oil pump 11, the first control valve 12 and oil pressure gauge 13, the second control is provided with oil return line
Valve 16.
Application method：Microseism probe 3 is fitted into probe sleeve 2, microseism probe is fixedly mounted on by probe by end cap 5
In sleeve cavity body；Load after piston rod 6 is connected fixation with piston 7 in hydraulic cylinder 1, support plate 8 is fixed on hydraulic cylinder bottom
Portion, piston are connected by piston rod with the probe sleeve back side, and outer connecting structure is installed on probe sleeve both ends；By microseismic sensors
Signal output part is connected with monitoring computer signal input part；By the oil feed line of hydraulic system 5 and oil return line respectively with liquid
Compressing cylinder hydraulic chamber hydraulic oil inlet and outlet are respectively communicated with；Microseismic sensors are sent into monitoring holes, microseismic sensors are in place
Afterwards, start the pressure oil pump in hydraulic system, open the first control valve 12 on oil feed line, close second on oil return line
Control valve 16, hydraulic oil enter the hydraulic chamber 4 of hydraulic cylinder, treat that the pressure value on oil pressure gauge is shown to scheduled pressure value, close
Pressure oil pump, closing control valve 12, at this time, the support-side arc plate face of microseism probe downside surface and support plate is in hydraulic oil
Effect is lower to be able to efficient coupling with monitoring monitoring holes inner wall, to monitor the vibrations of rock mass.When needing to recycle microseismic sensors, close
The first control valve 12 on oil feed line is closed, the second control valve 16 on oil return line is opened, pressure oil pump is connected to oil return line,
To applying negative pressure in hydraulic chamber 4, the indoor hydraulic oil of hydraulic cylinder oil pressure is back in hydraulic oil container 17, relieve to branch
The support force of fagging and microseism probe, and then can realize effective recycling of microseismic sensors.
It is important to point out that above-described embodiment is served only for, the utility model is described in further detail, it is impossible to is interpreted as pair
The limitation of scope of protection of the utility model, the technical staff of fields technology make the utility model according to the content of invention
Some nonessential modifications and adaptations are embodied, and still fall within the scope of protection of the utility model.
Claims (5)
- The shake sensor device 1. a kind of hydraulic pressure support declines, it is characterised in that：Including microseismic sensors, it is arranged on microseismic sensors Outer connecting structure, hydraulic support mechanism and the hydraulic system that hydraulic oil is provided for hydraulic pressure support at both ends, the microseismic sensors The component of clasping for including microseism probe (3) and clasping microseism probe is formed, the component of clasping is the straight barrel by hatch frame The probe sleeve (2) formed with cone cylinder head, the shape and structure that the shape and structure of probe sleeve inner cavity is popped one's head in microseism match, make The microseism probe downside surface and microseism probe tapered end head being placed in probe sleeve expose outside probe sleeve respectively；The hydraulic pressure Supporting mechanism is secondary for two, is separately positioned on and clasps component dorsal surface middle separated time both ends, its composition includes hydraulic cylinder (1), piston (7) and support plate (8), hydraulic cylinder by bottom face non-supported with support plate or is clasped component back surface and is connected, and piston passes through work Stopper rod (6) is connected with clasping component back surface or the non-supported face of support plate, hydraulic cylinder hydraulic chamber (4) hydraulic oil inlet and outlet point It is not connected with the oil feed line (14) and oil return line (15) of hydraulic system, microseism probe downside surface and support plate are in hydraulic oil Pressure acts on lower and monitoring holes inner wall efficient coupling, to monitor the vibrations of rock mass；The composition of the hydraulic system include one end with The oil feed line (14) and oil return line (15) of hydraulic oil container (17) connection, the other end and hydraulic cylinder hydraulic chamber (4) connection, supply Set on oil pipe line by pressure oil pump (11), the first control valve (12) and oil pressure gauge (13), the second control is provided with oil return line Valve (16) processed；The external link structure includes link (10) and screw shell (9), described link one end and microseismic sensors One end is fixedly connected, and the other end is hinged by hinged structure with screw shell.
- The shake sensor device 2. hydraulic pressure support according to claim 1 declines, it is characterised in that：The tail of the probe sleeve End is provided with the end cap (5) that screw thread pair couples with sleeve body, and microseism probe is fixedly mounted in sleeve cavity body by end cap.
- The shake sensor device 3. hydraulic pressure support according to claim 1 or 2 declines, it is characterised in that：The hydraulic cylinder It is connected by bottom with the non-supported face of support plate, piston is connected by piston rod with clasping component back surface.
- The shake sensor device 4. hydraulic pressure support according to claim 1 or 2 declines, it is characterised in that：The link by The linking arm of the annulus, connector and the two warpage structures that match with microseismic sensors is formed, and two linking arms are symmetrical arranged, One end is fixedly connected with annulus, and the other end is connected with connector, and connector is connected by hinged structure with screw shell.
- The shake sensor device 5. hydraulic pressure support according to claim 3 declines, it is characterised in that：The link by with it is micro- The linking arm of annulus, connector and two warpage structures that shake sensor matches is formed, and two linking arms are symmetrical arranged, one end It is fixedly connected with annulus, the other end is connected with connector, and connector is connected by hinged structure with screw shell.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720689732 | 2017-06-14 | ||
| CN2017206897325 | 2017-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207318738U true CN207318738U (en) | 2018-05-04 |
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ID=62437287
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720750346.2U Withdrawn - After Issue CN207318738U (en) | 2017-06-14 | 2017-06-26 | A kind of hydraulic pressure support, which declines, shakes sensor device |
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| CN (1) | CN207318738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107247287A (en) * | 2017-06-14 | 2017-10-13 | 核工业北京地质研究院 | A kind of hydraulic pressure support declines shake sensor device |
-
2017
- 2017-06-26 CN CN201720750346.2U patent/CN207318738U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107247287A (en) * | 2017-06-14 | 2017-10-13 | 核工业北京地质研究院 | A kind of hydraulic pressure support declines shake sensor device |
| CN107247287B (en) * | 2017-06-14 | 2024-06-07 | 核工业北京地质研究院 | Hydraulic support type microseismic sensor device |
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Granted publication date: 20180504 Effective date of abandoning: 20240607 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180504 Effective date of abandoning: 20240607 |