CN107907370A - Continous way biologic grain vasculum - Google Patents
Continous way biologic grain vasculum Download PDFInfo
- Publication number
- CN107907370A CN107907370A CN201711085673.1A CN201711085673A CN107907370A CN 107907370 A CN107907370 A CN 107907370A CN 201711085673 A CN201711085673 A CN 201711085673A CN 107907370 A CN107907370 A CN 107907370A
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- sampling
- sliding rack
- cabinet
- biologic grain
- continous way
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- 238000005070 sampling Methods 0.000 claims abstract description 57
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 230000008093 supporting effect Effects 0.000 claims description 14
- NOQGZXFMHARMLW-UHFFFAOYSA-N Daminozide Chemical compound CN(C)NC(=O)CCC(O)=O NOQGZXFMHARMLW-UHFFFAOYSA-N 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 206010054949 Metaplasia Diseases 0.000 abstract 1
- 230000015689 metaplastic ossification Effects 0.000 abstract 1
- 230000008520 organization Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000009610 hypersensitivity Effects 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of continous way biologic grain vasculum, belong to agricultural technology field, including at least six sampling modules, in M rows, N row arrangements, M and N is positive integer, single sampling module includes cabinet and the sampling workpiece in the cabinet, rotating device, sliding rack and telescoping mechanism, rotating device is installed in sliding rack and is rotatablely connected with sampling workpiece, sliding rack is slidably disposed in cabinet, in H-type structure, telescoping mechanism is by driving device, telescopic putter, transmission device forms, in telescopic putter is connected together by rotation screw thread, outer bar forms, its one end is connected to sliding rack, the other end is connected with driving device by transmission device.The present invention can accurately, continuously complete the biologic grain sampling operation in air, have the characteristics of compact-sized, collection is efficient, stable, reliable.The each independent use module direct splicing of the present invention forms, and is conducive to the production of size of the organization metaplasia, has saved production cost, and can realize any overlap joint, beneficial to collection.
Description
Technical field
The invention belongs to agricultural technology field, is related to a kind of continous way biologic grain vasculum.
Background technology
In the prior art, in air biologic grain the key problem for drifting always agroecosystem research, be
Invasive species are spread, ecological population transition, the key technology of the research such as pollen hypersensitivity source retrospect.Due to anemochoric biology
Grain, weight is light, small, and propagation height, length excursion are big, and the change of air itself is fast, and biologic grain drifts sampling
What always biologic grain atmospheric propagation was studied keeps in check.The biologic grain drifted with air is captured as far as possible, such as pollen, kind
Son etc., increases the chance of efficiently sampling, it is necessary to researches and develops new sampling tool.
In the prior art, the biologic grain sampler made using fluid mechanics principle can obtain big in sampling time section
Average particle concentration in gas.The Rotorod Sampler40 of Foreign Epidemic and domestic TH-001-60 types pollen sampler are equal at present
It is to use hydrodynamic methods.Sampler based on hydrodynamic methods, samples relative to domestic TH-001-60 types pollen
Device, Rotorod Sampler samplers are more simple, easily operated.Rotorod Sampler, slide are installed on plastic stent
In, the collection of slide has certain actual effect, as individual slide can only gather 1-2 it is small when, must just replace, and usually sample
Device apart from measuring station farther out so that replace that the frequency of slide is cumbersome, and the continuity sampling of biologic grain can not obtain very well
Guarantee, can not to using work carry out systematization research.
Therefore, the collecting efficiency of slide how is effectively improved, is more effective, more accurately implements biologic grain in air
Collection new development direction.
The content of the invention
In view of this, the technical problems to be solved by the invention are to provide a kind of high continuous of time saving and energy saving, work efficiency
Formula biologic grain vasculum, can quickly, accurately, continuously complete the biologic grain sampling operation in air.
To reach above-mentioned purpose, the present invention provides following technical solution：
The present invention provides a kind of continous way biologic grain vasculum, including at least six sampling modules, in M rows, N row rows
Cloth, M and N are positive integer, and single sampling module includes cabinet and sampling workpiece in the cabinet, rotating device, cunning
Frame and telescoping mechanism are moved, rotating device is installed in sliding rack and is slidably set with sampling workpiece rotation connection, sliding rack
In cabinet, in H-type structure, telescoping mechanism is made of driving device, telescopic putter, transmission device, and telescopic putter is by rotation spiral shell
The inside and outside bar composition that line connects together, its one end are connected to sliding rack, and the other end is connected with driving device by transmission device
Connect.
Further, the rotating device uses decelerating motor, and the driving device uses stepper motor.
Further, the transmission device by drive gear on the drive means is set, be arranged in telescopic putter and with
The driven gear composition that drive gear is meshed, telescopic putter are rotatably supported in cabinet.
Further, the drive gear and driven gear are bevel gear.
Further, the drive gear replaces with turbine, and the driven gear replaces with worm screw.
Further, the sampling workpiece by be fixedly connected on rotating device sampling support, be removably connected to this and adopt
Sampling sheet composition on sample stent, the sampling sheet are arranged to three, and angle between any two is 120 °, is adhered to using being coated with
The microslide of agent.
Further, the automatically controlled dress controlled in order the rotating device in each sampling module and driving device implementation is further included
Put.
Further, guide rail is provided with the cabinet, two alar walls of H-type structure sliding rack are slidably matched with guide rail.
Further, face door is connected with by movable part on the cabinet, be equipped between face door and sliding rack drawstring and
Supporting rod, the supporting rod use spring or loose-leaf using hydraulic pressure, pneumatic or gas spring supporting rod, the movable part.
The beneficial effects of the invention are as follows：
1st, it is a series of can be automatically performed the stretching for treating sampling workpiece, rotation, retraction, conversion etc. in collection storehouse of the invention
Push collecting work.
2nd, collection storehouse of the invention is highly practical, instead of the operation process manually frequently replaced using workpiece, entirely adopts
Collection process can by its realization flexibly rapidly, continuously accurate effect, have it is compact-sized, collection efficiently, stablize, safety, can
Lean on, time saving and energy saving, the characteristics of work efficiency is high.
3rd, collection storehouse of the invention is set by improving the structure of biologic grain collector by exquisite ground drive mechanism
Meter, improves collecting efficiency, because it can obtain continuous reliable gathered data, so as to improve total by the air of its calculating gained
The accuracy of granule density.
Other advantages, target and the feature of the present invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.The target and other advantages of the present invention can by following specification realizing and
Obtain.
Brief description of the drawings
In order to make the object, technical solutions and advantages of the present invention clearer, the present invention is made below in conjunction with attached drawing excellent
The detailed description of choosing, wherein：
Fig. 1 is the structure diagram when sampling workpiece in present invention collection storehouse is retracted；
Fig. 2 is the structure diagram when sampling workpiece in present invention collection storehouse stretches out；
Fig. 3 is the front schematic view in present invention collection storehouse.
Embodiment
Illustrate embodiments of the present invention below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.It should be noted that diagram provided in following embodiments is only to show
Meaning mode illustrates the basic conception of the present invention, and in the case where there is no conflict, the feature in following embodiments and embodiment can phase
Mutually combination.
Please refer to Fig.1-3, the element numbers in attached drawing represent respectively：Cabinet 1, sampling workpiece 2, rotating device 3, sliding rack
4th, driving device 5, telescopic putter 6, drawstring 7, supporting rod 8, sliding tooth 9, driven gear 10, face door 11, wherein：Interior bar 61, outside
Bar 62.
Embodiment is substantially as shown in drawings：The present embodiment provides a kind of continous way biologic grain vasculum, including at least six
A sampling module, in M rows, N row arrangements, M and N are positive integer, i.e., the vasculum can be arranged as single by multiple sampling modules
Structure or single-row structure or matrix type structure；And single sampling module includes cabinet 1 and the sampling workpiece in the cabinet 1
2nd, rotating device 3, sliding rack 4 and telescoping mechanism, rotating device 2 use decelerating motor, in sliding rack 4 and and sample man
Part 2 is rotatablely connected, and sliding rack 4 is slidably disposed in cabinet 1, in H-type structure, reduces blocking surface to dry in sampling process
Relate to, and guide rail (not shown) is provided with cabinet 1, two alar walls of H-type structure sliding rack 4 are slidably matched with guide rail, so that sliding
Frame 4 laterally horizontally slips in cabinet 1；Telescoping mechanism is made of driving device 5, telescopic putter 6, transmission device, driving device 5
Using stepper motor, interior bar 61 and outer bar 62 that telescopic putter 6 is connected together by rotation screw thread form, interior bar 61 (outer bar 62)
One end be connected to sliding rack 4, the other end and outer bar 62 (interior bar 61) spiral connection, and the other end of outer bar 62 (interior bar 61) with
Driving device 5 is connected by transmission device, in this way, driving device drives actuator movement, so that outer bar rotates, and
Interior bar the clockwise or counterclockwise of outer bar screw thread rotation drive under present it is corresponding outer bar between stretching or
Retracting motion, and then realization promotes sliding rack to do straight reciprocating motion and drives sampling workpiece to stretch out outside cabinet or bounce back cabinet
It is interior；Transmission device by be arranged in driving device 5 drive gear 7, be arranged in the outer bar 62 (or interior bar 61) of telescopic putter 6
And the driven gear 8 being meshed with drive gear 7 forms, the biography between driving device and telescopic putter is completed by tooth engagement
It is dynamic.
Using the above scheme, the present invention can accurately, continuously complete the biologic grain sampling operation in air, have structure
It is compact, gather the characteristics of efficient, stable, reliable.The each independent use module direct splicing of the present invention forms, and is conducive to tissue
Large-scale production, has saved production cost, and can realize any overlap joint, beneficial to collection.And single sampling module be additionally favorable for transport,
Dismounting, storage and maintenance etc..
Drive gear 7 and driven gear 8 in another embodiment is bevel gear.It is big with stable structure, driving torque.
Drive gear 7 in another embodiment replaces with turbine (not shown), and driven gear 8 replaces with worm screw and (do not draw
Go out), i.e., turbine is set in driving device, worm screw (worm screw is connected with outer bar or outer bar uses worm screw) is set in telescopic putter.
The rotation between the inside and outside bar of telescopic putter can be also realized using turbine and worm drive mechanism to promote sliding rack to move.
Sampling workpiece 2 in the present embodiment is by the sampling support (unmarked), detachable that is fixedly connected on rotating device 3
(unmarked) composition of sampling sheet being connected on the sampling support, the sampling sheet are arranged to three, and angle between any two is
120 °, using the microslide for being coated with adhesive, adhesive such as silicone grease.Sampling workpiece samples chip architecture by three-chip type and sets
Meter, adds effective pickup area, improves collecting efficiency, because it can obtain continuous reliable gathered data, so as to carry
Gao Youqi calculates the accuracy of the air total particle concentration of gained.
Further included in the present embodiment and what is controlled in order is implemented to the rotating device 3 in each sampling module and driving device 5
Electric control gear (not shown).Pass through automatically controlling for electric control gear, it is ensured that this vasculum is in defined pickup area and time
In section, continuous continual collecting work is completed, such as when 12 is small or in when 24 is small, to sampling workpiece progress 30 minutes, 1 small
When, 1.5 it is small when or 2 it is small when replacement frequency implement automatic interleaved acquisition operation, avoid the collection number that human factor is brought
According to inaccurate, and the working strength of collector is reduced, be more conducive to the collecting work of overlength distance.Storage battery is provided with cabinet
(not shown) for each driving device, rotating device, electric control gear etc. to provide electric power, so that this vasculum can work normally.
Face door 11 is connected with by movable part on cabinet 1 in the present embodiment, is equipped between the face door 11 and sliding rack 4
Drawstring 9 and supporting rod 10, the supporting rod 10 using hydraulic pressure, pneumatic or gas spring supporting rod, the movable part using spring or
Loose-leaf.If some needs to stretch out collection using module, sliding rack is slided to face door direction, and drawstring is in relaxation shape, branch at this time
After strut promotes face door to open certain aperture, face door is unfolded under the action of the spring, such as lies against cabinet bottom, in the process,
Supporting rod extends and drawstring is tightened, if when needing retraction, sliding rack retraction drive drawstring pull-up face door and overcome spring force and
Supporting rod is compressed, and supporting rod will be gradually completing the closing motion of face door under retracted state, drawstring relaxation at this time is not
Work.Certainly in various embodiments, electronic gate can also be used, has electric control gear directly to be opened and closed by electrical control
Electronic gate.
Automatic initiating device is set on joining relation that can be between driving device and rotating device in the present embodiment, i.e.,
The keying of rotating device is related by the keying of driving device, is set such as in sliding rack and opens and closes button, isolation is set in cabinet,
When sliding rack drives sampling workpiece to stretch out outside cabinet, and when extending certain distance and the keying button is triggered to isolation, driving
Device stops and rotating device is opened.
In use, first, it is in definite shape voluntarily to splice a certain number of sampling modules according to demand, and these are sampled
Module and its interior component are connected with an electric control gear, and pass through the specific control of PLC program controllers setting in electric control gear
Parameter (time, cycle etc.), to complete the collecting work that regulation requires, i.e., after the first sampling module is started to work, after can making
Continuous sampling module can continuously run collection；When needing collection such as a certain sampling module, control driving device 5 starts (as just
Turn), drive transmission device to drive the outer bar 62 of telescopic putter 6 to rotate, and that screw thread rotation is then carried out with interior bar 61 is (suitable for outer bar 62
Hour hands rotate) so that interior bar stretches out outer bar and promotes sliding rack 4 to be moved to face 11 directions of door, at this time the supporting rod in sliding rack 4
For promotion face door prior to opening face door 11 using workpiece 2, then sliding rack 4 promotes during moving on stretches out machine using workpiece
Outside case 1, and after the specified extension elongation of arrival, driving device 5 stops, and starts rotating device 3 so that this is started using workpiece 2
Implement collection, provide setting time when reaching, control rotating device 3 stops, and starts driving device 5 (reversion), makes interior bar inverse
Hour hands are rotated and bounced back in outer bar, and drive sliding rack 4 to bounce back into cabinet 1, after bouncing back in place, stop driving device 5,
The retraction of sampling workpiece 2 is realized at this moment；Finally, above-mentioned steps are repeated, it is each using mould sampling workpiece 2 in the block to complete
Cycle alternation collecting work.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail in good embodiment, it will be understood by those of ordinary skill in the art that, can be to the skill of the present invention
Art scheme technical scheme is modified or replaced equivalently, without departing from the objective and scope of the technical program, it should all cover in the present invention
Right among.
Claims (9)
1. continous way biologic grain vasculum, it is characterised in that including at least six sampling modules, in M rows, N row arrangements, M and N
Be positive integer, single sampling module include cabinet (1) and sampling workpiece (2) in the cabinet, rotating device (3),
Sliding rack (4) and telescoping mechanism, rotating device are installed in sliding rack and are rotatablely connected with sampling workpiece, and sliding rack is slidable
It is arranged in cabinet, in H-type structure, telescoping mechanism is made of driving device (5), telescopic putter (6), transmission device, flexible to push away
The inside and outside bar that bar is connected together by rotation screw thread forms, and its one end is connected to sliding rack, and the other end passes through biography with driving device
Dynamic device connection.
2. continous way biologic grain vasculum according to claim 1, it is characterised in that the rotating device is using deceleration
Motor, the driving device use stepper motor.
3. continous way biologic grain vasculum according to claim 1, it is characterised in that the transmission device is by being arranged on
Drive gear (7) in driving device, the driven gear (8) for being arranged in telescopic putter and being meshed with drive gear composition,
Telescopic putter is rotatably supported in cabinet.
4. continous way biologic grain vasculum according to claim 3, it is characterised in that the drive gear and driven tooth
Take turns as bevel gear.
5. continous way biologic grain vasculum according to claim 3, it is characterised in that the drive gear replaces with whirlpool
Wheel, the driven gear replace with worm screw.
6. continous way biologic grain vasculum according to claim 1, it is characterised in that the sampling workpiece is by the company of fixation
The sampling support being connected on rotating device, the sampling sheet composition being removably connected on the sampling support, the sampling sheet are set
For three, angle between any two is 120 °, using the microslide for being coated with adhesive.
7. continous way biologic grain vasculum according to claim 1, it is characterised in that further include to each sampling module
Interior rotating device and driving device implement the electric control gear controlled in order.
8. continous way biologic grain vasculum according to claim 1, it is characterised in that be provided with and lead in the cabinet
Rail, two alar walls of H-type structure sliding rack are slidably matched with guide rail.
9. continous way biologic grain vasculum according to claim 1, it is characterised in that pass through movable part on the cabinet
Face door (11) is connected with, is equipped with drawstring (9) and supporting rod (10) between the face door and sliding rack, the supporting rod uses liquid
Pressure, pneumatic or gas spring supporting rod, the movable part use spring or loose-leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711085673.1A CN107907370B (en) | 2017-11-07 | 2017-11-07 | Continuous biological particle collection box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711085673.1A CN107907370B (en) | 2017-11-07 | 2017-11-07 | Continuous biological particle collection box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107907370A true CN107907370A (en) | 2018-04-13 |
| CN107907370B CN107907370B (en) | 2020-09-01 |
Family
ID=61843723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711085673.1A Expired - Fee Related CN107907370B (en) | 2017-11-07 | 2017-11-07 | Continuous biological particle collection box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107907370B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607508A (en) * | 2021-09-01 | 2021-11-05 | 中国科学院大气物理研究所 | Novel even sampling of atmosphere single particle thing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4440692A1 (en) * | 1994-11-15 | 1996-05-23 | Ilka Praezimatik Kryotechnik G | Sampling air for the presence of nuclides |
| US20030008341A1 (en) * | 2001-07-03 | 2003-01-09 | Spurrell Leon Bryan | Adjustable air sampler for pathogens and psychrometrics |
| CN101806676A (en) * | 2010-03-23 | 2010-08-18 | 中国科学院研究生院 | Pollen collector |
| CN203037554U (en) * | 2012-12-10 | 2013-07-03 | 江苏天瑞仪器股份有限公司 | Atmosphere heavy metal online analyzer |
| CN103900852A (en) * | 2014-04-09 | 2014-07-02 | 中国科学院东北地理与农业生态研究所 | Atmospheric pollen collector |
| CN206008545U (en) * | 2016-08-29 | 2017-03-15 | 重庆清白面业有限责任公司 | A kind of flour automatic uniform mixing device |
| KR101721607B1 (en) * | 2016-11-10 | 2017-04-03 | 대한민국 | Apparatus for rotating-type analyzing particles in particulate matter and analyzing method using the same |
-
2017
- 2017-11-07 CN CN201711085673.1A patent/CN107907370B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4440692A1 (en) * | 1994-11-15 | 1996-05-23 | Ilka Praezimatik Kryotechnik G | Sampling air for the presence of nuclides |
| US20030008341A1 (en) * | 2001-07-03 | 2003-01-09 | Spurrell Leon Bryan | Adjustable air sampler for pathogens and psychrometrics |
| CN101806676A (en) * | 2010-03-23 | 2010-08-18 | 中国科学院研究生院 | Pollen collector |
| CN203037554U (en) * | 2012-12-10 | 2013-07-03 | 江苏天瑞仪器股份有限公司 | Atmosphere heavy metal online analyzer |
| CN103900852A (en) * | 2014-04-09 | 2014-07-02 | 中国科学院东北地理与农业生态研究所 | Atmospheric pollen collector |
| CN206008545U (en) * | 2016-08-29 | 2017-03-15 | 重庆清白面业有限责任公司 | A kind of flour automatic uniform mixing device |
| KR101721607B1 (en) * | 2016-11-10 | 2017-04-03 | 대한민국 | Apparatus for rotating-type analyzing particles in particulate matter and analyzing method using the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607508A (en) * | 2021-09-01 | 2021-11-05 | 中国科学院大气物理研究所 | Novel even sampling of atmosphere single particle thing device |
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| Publication number | Publication date |
|---|---|
| CN107907370B (en) | 2020-09-01 |
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