CN112316816A - Test tube shakes even device - Google Patents
Test tube shakes even device Download PDFInfo
- Publication number
- CN112316816A CN112316816A CN202011335140.6A CN202011335140A CN112316816A CN 112316816 A CN112316816 A CN 112316816A CN 202011335140 A CN202011335140 A CN 202011335140A CN 112316816 A CN112316816 A CN 112316816A
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- 238000012360 testing method Methods 0.000 title claims abstract description 144
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 6
- 239000012634 fragment Substances 0.000 description 6
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000003028 elevating effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/20—Mixing the contents of independent containers, e.g. test tubes
- B01F31/201—Holders therefor
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Abstract
The invention relates to the technical field of test tube shaking devices, and discloses a test tube shaking device which comprises a test tube rack platform, wherein a test tube rack is arranged on the test tube rack platform, a plurality of test tube grooves are arranged on the test tube rack in an arrayed manner, test tubes are correspondingly arranged in the test tube grooves, a driving device for driving the test tube rack to move is arranged on the test tube rack platform, the test tube shaking device also comprises a vertical plate arranged on one side of the test tube rack platform, a lifting device is arranged on the vertical plate, and the driving end of the lifting device is connected with a mounting plate. The action efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of test tube shaking devices, in particular to a test tube shaking device.
Background
At present in the medical equipment field, especially apply similar test tube and need shake even mechanism equipment, the shaking of sample (mainly have whole blood, plasma etc.) can not accomplish single test tube, shake in real time evenly in the test tube, and the test tube sample that the whole row of test tube shakes even and can exist the back and detect appears the phenomenon of sediment, seriously influences the accuracy and the efficiency of testing result, can bring a great deal of inconvenience for the detection of sample like this, and the accuracy of testing result also can be influenced.
Disclosure of Invention
In view of this, the present invention provides a test tube shaking device to solve the technical problems that the shaking of the entire row of test tubes causes precipitation of test tube samples to be detected, which seriously affects the accuracy and efficiency of the detection result, thereby bringing inconvenience to the detection of the samples and affecting the accuracy of the detection result.
In order to solve the technical problem, the invention provides a test tube shaking-up device which comprises a test tube rack platform, wherein a test tube rack is arranged on the test tube rack platform, a plurality of test tube grooves are arranged on the test tube rack in an arrayed mode, test tubes are correspondingly arranged in the test tube grooves, a driving device for driving the test tube rack to move is arranged on the test tube rack platform, the test tube shaking-up device also comprises a vertical plate arranged on one side of the test tube rack platform, a lifting device is arranged on the vertical plate, the driving end of the lifting device is connected with an installation plate, a shaking-up device is arranged on the installation plate, the driving end of the shaking-up device is connected with a test tube clamp, and the test tube clamp is.
Optionally, the lifting device includes a vertical screw motor fixedly disposed on the vertical plate, and a nut mounting seat slidably disposed on the vertical plate, and a screw of the vertical screw motor is inserted into the nut mounting seat.
Optionally, a vertical sliding rail is arranged on the vertical plate, a vertical sliding block is connected to the vertical sliding rail in a sliding mode, and the vertical sliding block and the nut mounting seat are fixedly connected with the mounting plate respectively.
Optionally, shake even device including fixed setting horizontal lead screw motor, the sliding connection on the mounting panel in mount pad on the mounting panel, horizontal lead screw motor's lead screw is worn to locate the mount pad, horizontal lead screw motor drive the mount pad is in round trip movement on the mounting panel, vertically wear to be equipped with the pivot on the mount pad, the one end fixed connection of pivot the test tube clamp, the other end of pivot is connected with flat horizontal baffle, be provided with on the horizontal lead screw motor with balanced baffle complex push pedal in the mount pad round trip movement in-process, the push pedal is through promoting balanced baffle drive the pivot is rotated.
Optionally, be provided with horizontal slide rail on the mounting panel, sliding connection has horizontal slider on the horizontal slide rail, horizontal slider through the connecting plate with mount pad fixed connection.
Optionally, a stop block is further arranged on the mounting seat, the stop block is attached to the balance baffle, and the stop block is connected with the balance baffle through a tension spring.
Optionally, a fixing plate is arranged on the transverse lead screw motor, the fixing plate is fixedly connected with the mounting plate, and the push plate is arranged on the fixing plate.
Optionally, the test tube clamp includes first centre gripping shell fragment and second centre gripping shell fragment, first centre gripping shell fragment with second centre gripping shell fragment rotates through the pivot to be connected, the cover is equipped with the torsional spring in the pivot, be provided with first recess on the first centre gripping shell fragment, be provided with the second recess on the second centre gripping shell fragment, first recess with the second recess encloses and closes and form the centre gripping space, the size in centre gripping space with the diameter looks adaptation of test tube.
Optionally, the edge of the first groove is provided with a first guide piece, the edge of the second groove is provided with a second guide piece, and the first guide piece and the second guide piece form an external splayed structure.
Optionally, the driving device is a linear module.
Compared with the prior art, the test tube shaking-up device provided by the embodiment of the invention has the beneficial effects that:
according to the test tube shaking device provided by the embodiment of the invention, the driving device drives the test tube rack to move, the lifting device and the shaking device can adjust the position of the test tube clamp, the test tube clamp can clamp and shake test tubes in the test tube rack one by one, and a single test tube can be shaken according to the real-time requirement of detection, so that the shaking effect and stability and the action efficiency are greatly improved.
Drawings
FIG. 1 is a first schematic structural diagram of a test tube shaking-up device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram II of the test tube shaking-up device according to the embodiment of the present invention;
FIG. 3 is a first schematic structural diagram of a shaking device of the test tube shaking device according to the embodiment of the present invention;
FIG. 4 is a second schematic structural diagram of a shaking device of the test tube shaking device according to the embodiment of the present invention;
fig. 5 is a schematic structural view of a test tube holder of the test tube shaking device according to the embodiment of the present invention.
In the figure, 1, a test tube rack platform, 2, a test tube rack, 3, a test tube groove, 4, a test tube, 5, a vertical plate, 6, a lifting device, 61, a vertical lead screw motor, 62, a nut mounting seat, 7, a mounting plate, 8, a shaking device, 81, a horizontal lead screw motor, 82, a mounting seat, 83, a rotating shaft, 84, a balance baffle, 85, a push plate, 86, a stop dog, 87, a tension spring, 88, a fixing plate, 9, a test tube clamp, 91, a first clamping elastic sheet, 92, a second clamping elastic sheet, 93, a torsion spring, 94, a first groove, 95, a second groove, 96, a first guide sheet, 97, a second guide sheet, 10, a vertical slide rail, 11, a vertical slide block, 12, a horizontal slide rail, 13, a horizontal slide block, 14 and a connecting plate.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In addition, the following description will be briefly made with reference to the orientation: the following directional or positional relationships, as indicated in the context of "front", "rear", "upper", "lower", "left", "right", etc., with respect to each structural member, are intended to refer to the orientation or positional relationship as shown in the drawings; these positional relationships are merely for convenience and simplicity of description and do not indicate or imply that the device referred to must have a particular orientation, be constructed and operated in a particular orientation and therefore should not be construed as limiting the invention.
If there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1 to 5, a test tube shaking device according to a preferred embodiment of the present invention includes a test tube rack platform 1, a test tube rack 2 is disposed on the test tube rack platform 1, a plurality of test tube slots 3 are arranged on the test tube rack 2, each test tube slot 3 is correspondingly provided with a test tube 4, a driving device for driving the test tube rack 2 to move is disposed on the test tube rack platform 1, and the driving device is a linear module. The utility model provides a test tube shakes even device still including set up in riser 5 of 1 one side of test-tube rack platform, be provided with elevating gear 6 on riser 5, elevating gear 6's drive end is connected with mounting panel 7, be provided with on the mounting panel 7 and shake even device 8, the drive end of shaking even device 8 is connected with test tube clamp 9, test tube clamp 9 is used for pressing from both sides and gets test tube 4.
Based on above-mentioned technical scheme, shake even device drive test-tube clamp and get the test tube after, elevating gear rises and drives the test tube and break away from the test-tube rack, shakes even through shaking even device to the reagent in the test tube, then elevating gear descends and with test tube playback normal position, and drive arrangement drive test-tube rack removes, shakes even device clamp and takes off a test tube and shake even, analogizes in proper order, realizes shaking even one by one of test tube.
The lifting device 6 comprises a vertical screw motor 61 fixedly arranged on the vertical plate 5 and a nut mounting seat 62 arranged on the vertical plate 5 in a sliding manner, a screw rod of the vertical screw motor 61 penetrates through the nut mounting seat 62, and the nut mounting seat is vertically and stably lifted through the cooperation of the vertical screw motor and the nut mounting seat.
The shaking device 8 comprises a transverse lead screw motor 81 fixedly arranged on the mounting plate 7 and a mounting seat 82 connected on the mounting plate 7 in a sliding manner, a lead screw of the transverse lead screw motor 81 is arranged on the mounting seat 82 in a penetrating manner, the transverse lead screw motor 81 drives the mounting seat 82 to move back and forth on the mounting plate 7, a rotating shaft 83 is longitudinally arranged on the mounting seat 82 in a penetrating manner, one end of the rotating shaft 83 is fixedly connected with the test tube clamp 9, the other end of the rotating shaft 83 is connected with a horizontal baffle 84, specifically, the balance baffle is vertically connected with the rotating shaft, in a free state, the balance baffle is in a vertical state, a push plate 85 matched with the balance baffle 84 is arranged on the transverse lead screw motor 81, in the process of back and forth movement of the mounting seat 82, the push plate 85 drives the rotating shaft 83 to rotate by pushing the balance baffle 84, and the transverse lead screw motor drives the mounting seat to, in this process, the push pedal promotes balanced baffle repeatedly and breaks away from balanced baffle, and when the push pedal promoted balanced baffle, the pivot was rotatory right, and when the push pedal broke away from balanced baffle, because balanced baffle did not receive external force, resumeed the self-balancing state, vertical state promptly, the pivot was rotatory left, so relapse, and the reagent that realizes in the test tube shakes evenly.
Based on above-mentioned technical scheme, also can be through the motion that deviates from that drive arrangement drive mount pad lasts as required, realize the lateral shifting to the test tube, be convenient for realize getting the test tube clamp and carrying out lateral shifting to the test tube, can know from this that can realize the lateral shifting to the test tube and sway to the test tube through a motor in this embodiment, compact structure, the modern design has reduced the cost of manufacture.
Be provided with horizontal slide rail 12 on the mounting panel 7, sliding connection has horizontal slider 13 on horizontal slide rail 12, horizontal slider 13 through connecting plate 14 with mount pad 82 fixed connection realizes through the cooperation of horizontal slide rail and horizontal slider that the mount pad is stable smooth and easy to move on horizontal.
Still be provided with dog 86 on the mount pad 82, dog 86 paste lean on in balanced baffle 84, dog 86 through extension spring 87 with balanced baffle 84 connects, the dog carries on spacingly to balanced baffle, at balanced baffle reset in-process, make it reply the normal position as early as possible, avoid its excessively rotatory, and then improve the reliability that the test tube swayd, the extension spring can improve balanced baffle's reset rate, and then improve and shake even efficiency to reagent, specifically, horizontal lead screw motor drive mount pad moves in opposite directions, the extension spring between push pedal promotion flat cross baffle struts flat cross baffle and the dog, the test tube rotates right together with flat cross baffle, horizontal lead screw motor drive mount pad back of the body motion, the extension spring resets, the test tube resets, so relapse, it is even to realize that reagent shakes.
Be provided with fixed plate 88 on the horizontal lead screw motor 81, fixed plate 88 with mounting panel 7 fixed connection, set up on the fixed plate 88 push pedal 85 makes things convenient for the fixed connection of horizontal lead screw motor and mounting panel, the installation of the push pedal of also being convenient for.
The test tube clamp 9 comprises a first clamping elastic sheet 91 and a second clamping elastic sheet 92, the first clamping elastic sheet 91 is rotatably connected with the second clamping elastic sheet 92 through a rotating shaft, a torsion spring 93 is sleeved on the rotating shaft, a first groove 94 is formed in the first clamping elastic sheet 91, a second groove 95 is formed in the second clamping elastic sheet 92, the first groove 94 and the second groove 95 are enclosed to form a clamping space, and the size of the clamping space is matched with the diameter of the test tube 4.
In this embodiment, the test tube comprises a tube body and a stopper sleeved on the upper end of the tube body, in this embodiment, the stopper is a head sleeve sleeved on the upper end of the tube body, specifically, the torsion spring is a return spring, the torsion spring can keep the first clamping elastic sheet and the second clamping elastic sheet in a closed state all the time, the first clamping elastic sheet and the second clamping elastic sheet are opened when the first clamping elastic sheet and the second clamping elastic sheet are sleeved on the outer side of the test tube, the test tube can push the first clamping elastic sheet and the second clamping elastic sheet open when the test tube enters the clamping space, the first clamping elastic sheet and the second clamping elastic sheet are immediately closed when the test tube enters the clamping space, the test tube clamp is sleeved on the outer side of the test tube, the test tube clamp can be taken out through matching with the stopper on the test tube, the test tube clamp is prevented from falling off, the test tube clamp is ensured to be reliable, and when the test tube clamp is sleeved, damage to the test tube is avoided.
The border of first recess 94 is provided with first guide plate 96, the border of second recess 95 is provided with second guide plate 97, first guide plate 96 with second guide plate 97 forms outer eight characters type structure, can understand ground, and the opening of the outer eight characters type structure that first guide plate and second guide plate formed is greater than the diameter of test tube, and outer eight characters type structure plays the guide effect, goes into the centre gripping space of test tube clamp very easily through the direction of outer eight characters type when the test tube clamp is close to the test tube to its centre gripping like this.
To sum up, compared with the prior art, the test tube shaking-up device provided by the embodiment of the invention has the beneficial effects that: according to the test tube shaking device provided by the embodiment of the invention, the driving device drives the test tube rack to move, the lifting device and the shaking device can adjust the position of the test tube clamp, the test tube clamp can clamp and shake test tubes in the test tube rack one by one, and a single test tube can be shaken according to the real-time requirement of detection, so that the shaking effect and stability and the action efficiency are greatly improved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A test tube shaking-up device is characterized by comprising a test tube rack platform (1), wherein a test tube rack (2) is arranged on the test tube rack platform (1), a plurality of test tube grooves (3) are arranged on the test tube rack (2), each test tube groove (3) is correspondingly provided with a test tube (4), the test tube rack platform (1) is provided with a driving device for driving the test tube rack (2) to move, and also comprises a vertical plate (5) arranged on one side of the test tube rack platform (1), a lifting device (6) is arranged on the vertical plate (5), the driving end of the lifting device (6) is connected with a mounting plate (7), be provided with on mounting panel (7) and shake even device (8), the drive end that shakes even device (8) is connected with test tube clamp (9), test tube clamp (9) are used for pressing from both sides and get test tube (4).
2. The test tube shaking-up device according to claim 1, wherein the lifting device (6) comprises a vertical screw motor (61) fixedly arranged on the vertical plate (5) and a nut mounting seat (62) slidably arranged on the vertical plate (5), and a screw of the vertical screw motor (61) is arranged on the nut mounting seat (62) in a penetrating manner.
3. The test tube shaking-up device according to claim 2, characterized in that a vertical slide rail (10) is arranged on the vertical plate (5), a vertical slide block (11) is connected on the vertical slide rail (10) in a sliding manner, and the vertical slide block (11) and the nut mounting base (62) are respectively and fixedly connected with the mounting plate (7).
4. The test tube shaking-up device according to claim 1, wherein the shaking-up device (8) comprises a transverse lead screw motor (81) fixedly arranged on the mounting plate (7) and a mounting seat (82) slidably connected on the mounting plate (7), a lead screw of the transverse lead screw motor (81) is arranged through the mounting seat (82), the transverse lead screw motor (81) drives the mounting seat (82) to move back and forth on the mounting plate (7), a rotating shaft (83) is longitudinally arranged on the mounting seat (82), one end of the rotating shaft (83) is fixedly connected with the test tube clamp (9), the other end of the rotating shaft (83) is connected with a flat transverse baffle (84), a push plate (85) matched with the balance baffle (84) is arranged on the transverse lead screw motor (81), and during the back and forth movement of the mounting seat (82), the push plate (85) drives the rotating shaft (83) to rotate by pushing the balance baffle (84).
5. The test tube shaking device according to claim 4, characterized in that a transverse slide rail (12) is arranged on the mounting plate (7), a transverse slide block (13) is slidably connected on the transverse slide rail (12), and the transverse slide block (13) is fixedly connected with the mounting seat (82) through a connecting plate (14).
6. The test tube shaking device according to claim 4, characterized in that a stop (86) is further arranged on the mounting seat (82), the stop (86) abuts against the balance baffle (84), and the stop (86) is connected with the balance baffle (84) through a tension spring (87).
7. The test tube shaking-up device according to claim 4, characterized in that a fixing plate (88) is arranged on the transverse screw motor (81), the fixing plate (88) is fixedly connected with the mounting plate (7), and the push plate (85) is arranged on the fixing plate (88).
8. The test tube shaking-up device according to claim 1, wherein the test tube holder (9) comprises a first holding elastic sheet (91) and a second holding elastic sheet (92), the first holding elastic sheet (91) and the second holding elastic sheet (92) are rotatably connected through a rotating shaft, a torsion spring (93) is sleeved on the rotating shaft, a first groove (94) is formed in the first holding elastic sheet (91), a second groove (95) is formed in the second holding elastic sheet (92), the first groove (94) and the second groove (95) are enclosed to form a holding space, and the size of the holding space is matched with the diameter of the test tube (4).
9. The tube shake-up device according to claim 8, wherein the first groove (94) is provided at an edge thereof with a first guide piece (96), the second groove (95) is provided at an edge thereof with a second guide piece (97), and the first guide piece (96) and the second guide piece (97) form an outer splayed structure.
10. The tube shake-up apparatus according to claim 1, wherein the drive means is a linear module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011335140.6A CN112316816A (en) | 2020-11-24 | 2020-11-24 | Test tube shakes even device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011335140.6A CN112316816A (en) | 2020-11-24 | 2020-11-24 | Test tube shakes even device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112316816A true CN112316816A (en) | 2021-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011335140.6A Pending CN112316816A (en) | 2020-11-24 | 2020-11-24 | Test tube shakes even device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112316816A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114814138A (en) * | 2022-04-21 | 2022-07-29 | 哈尔滨跃渊环保智能装备有限责任公司 | Shaking-up cover opening device and water quality detection equipment |
| CN115561412A (en) * | 2022-10-08 | 2023-01-03 | 哈尔滨海涵丰生物科技开发有限公司 | Medicine automatic checkout device |
| CN116148027A (en) * | 2023-04-18 | 2023-05-23 | 北京层浪生物科技有限公司 | Sample preparation instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203316057U (en) * | 2013-05-07 | 2013-12-04 | 长春迪瑞医疗科技股份有限公司 | Automatic clamping and shaking mechanism |
| CN106732096A (en) * | 2016-12-16 | 2017-05-31 | 青岛海之源智能技术有限公司 | A kind of test tube oscillating uniform device |
| CN208260665U (en) * | 2018-03-30 | 2018-12-21 | 南京诺唯赞医疗科技有限公司 | A kind of test tube automatic clamping oscillating uniform device |
| WO2019206098A1 (en) * | 2018-04-24 | 2019-10-31 | 深圳市帝迈生物技术有限公司 | Device for automatically mixing blood sample and blood cell analysis equipment |
-
2020
- 2020-11-24 CN CN202011335140.6A patent/CN112316816A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203316057U (en) * | 2013-05-07 | 2013-12-04 | 长春迪瑞医疗科技股份有限公司 | Automatic clamping and shaking mechanism |
| CN106732096A (en) * | 2016-12-16 | 2017-05-31 | 青岛海之源智能技术有限公司 | A kind of test tube oscillating uniform device |
| CN208260665U (en) * | 2018-03-30 | 2018-12-21 | 南京诺唯赞医疗科技有限公司 | A kind of test tube automatic clamping oscillating uniform device |
| WO2019206098A1 (en) * | 2018-04-24 | 2019-10-31 | 深圳市帝迈生物技术有限公司 | Device for automatically mixing blood sample and blood cell analysis equipment |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114814138A (en) * | 2022-04-21 | 2022-07-29 | 哈尔滨跃渊环保智能装备有限责任公司 | Shaking-up cover opening device and water quality detection equipment |
| CN114814138B (en) * | 2022-04-21 | 2024-04-26 | 哈尔滨跃渊环保智能装备有限责任公司 | Shaking cover opening device and water quality detection equipment |
| CN115561412A (en) * | 2022-10-08 | 2023-01-03 | 哈尔滨海涵丰生物科技开发有限公司 | Medicine automatic checkout device |
| CN115561412B (en) * | 2022-10-08 | 2023-05-05 | 哈尔滨海涵丰生物科技开发有限公司 | Automatic medicine detection device |
| CN116148027A (en) * | 2023-04-18 | 2023-05-23 | 北京层浪生物科技有限公司 | Sample preparation instrument |
| CN116148027B (en) * | 2023-04-18 | 2024-04-05 | 北京层浪生物科技有限公司 | Sample preparation instrument |
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Application publication date: 20210205 |
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