CN114348664A - Laboratory terminating machine - Google Patents
Laboratory terminating machine Download PDFInfo
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- CN114348664A CN114348664A CN202210169105.4A CN202210169105A CN114348664A CN 114348664 A CN114348664 A CN 114348664A CN 202210169105 A CN202210169105 A CN 202210169105A CN 114348664 A CN114348664 A CN 114348664A
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- fixed
- laboratory
- support plate
- terminal according
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- 238000005138 cryopreservation Methods 0.000 claims description 12
- 239000012472 biological sample Substances 0.000 abstract description 35
- 238000011160 research Methods 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000007710 freezing Methods 0.000 description 12
- 230000008014 freezing Effects 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 9
- 238000000151 deposition Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 208000032484 Accidental exposure to product Diseases 0.000 description 1
- 231100000818 accidental exposure Toxicity 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001095 motoneuron effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Landscapes
- Automatic Analysis And Handling Materials Therefor (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Abstract
The invention belongs to the technical field of medical equipment, in particular to a laboratory terminal, which aims at the technical problems that the existing biological samples are not stored timely, too much manual intervention is caused, and the health and life risks of workers are threatened. The invention can fully ensure the safe storage of the biological sample, and simultaneously, the high efficiency of the information and scientific research result conversion is realized, thereby assisting the conversion of the scientific research result.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a laboratory terminal.
Background
Most of the existing biological sample storage units are in a traditional high-energy-consumption low-capacity low-temperature refrigerator or liquid nitrogen tank mode, so that laboratory operators are required to carry portable low-temperature storage boxes to transfer biological samples to be stored.
However, the problems that the biological samples are stored untimely and are subjected to excessive manual intervention to threaten the health and even life risks of workers, the accidental exposure risk of fatal and highly pathogenic samples is high, the repeated freezing and thawing of the biological samples causes the accidental abandonment of precious samples, and the like are caused, and finally the exponential reduction of scientific and medical research values is caused.
Disclosure of Invention
The invention provides a laboratory terminal machine based on the technical problems that the existing biological samples are not stored timely, manual intervention is excessive, and the health and life danger of workers are threatened.
The utility model provides a laboratory terminating machine, includes bottom plate, shell, top cap and terminal main part, the inner wall at the shell is fixed to the terminal main part, bottom plate and top cap are fixed respectively in the bottom and the top of shell, the terminal main part includes framework and support plate platform, and the support plate platform sets up in the framework, one side of support plate platform is fixed with the air door, the gate opening that supplies the air door to remove is seted up to one side of shell, the top of support plate platform is provided with vertical guide rail and transverse guide, be provided with on the transverse guide and freeze the case of depositing, and freeze the interior equipartition of depositing and have the cryopreserved pipe, the top of support plate platform is fixed with the step motor who drives transverse guide and vertical guide through the support, support plate platform top is fixed with servo motor and tee bend sorter through the support.
Through the technical scheme: the two-dimensional code cryopreservation tube storing the biological sample is sent to a transmission pipeline of a system by a support plate platform after confirming the information of the two-dimensional code, the support plate platform provides sufficient zero-degree compressed air for pushing the two-dimensional code cryopreservation tube to move and finally completes the storage process of the biological sample, when the biological sample is taken out, the two-dimensional code cryopreservation tube storing the biological sample is pushed by the zero-degree compressed air from a sample post office in a pneumatic transmission pipeline and then enters the upper part of the support plate platform, after confirming that the biological sample reaches the object consistent with the launching starting point, the two-dimensional code cryopreservation tube storing the biological sample freely falls and then enters the support plate platform and is pushed out of an instrument by the support plate platform to complete the taking-out process of the biological sample, compared with the traditional manual transmission, the laboratory terminal can more quickly, The biological sample is transmitted in a safe and whole-course tracing mode, so that the high efficiency of information and scientific research result conversion can be realized while the safe storage of the biological sample can be fully guaranteed, and the conversion of the scientific research result can be further assisted.
The invention is further configured to: the pneumatic door is characterized in that a cylinder is fixed on one side, close to the pneumatic door, of the shell, a rotating shaft is arranged on an output shaft of the cylinder, a mounting plate is fixed on the bottom of the pneumatic door, the rotating shaft is arranged in the mounting plate, and the rotating shaft is fixed with the bottom of the pneumatic door.
Through the technical scheme: utilize cylinder work, drive the pivot and realize rotating for pneumatic door can realize upset convenient and practical, and the mounting panel can effectively fixed pivot, durable simultaneously.
The invention is further configured to: the output shaft of cylinder is fixed with the connector, the dop of being connected in the connector rotation is fixed with to the one end of pivot.
Through the technical scheme: utilize the connector to rotate to be connected in the dop, make things convenient for the cylinder drive pivot rotatory, realize opening and shutting of pneumatic door.
The invention is further configured to: the shape of connector is U-shaped structure, the shape of dop is V font structure.
Through the technical scheme: the clamping head with the V-shaped structure can be well embedded in the connector with the U-shaped structure, and the clamping head with the V-shaped structure has a large amplitude when rotating, so that the opening of the pneumatic door is effectively enlarged.
The invention is further configured to: the mounting panel's shape is the U-shaped structure, the pivot is fixed on the mounting panel through the clamp splice.
Through the technical scheme: utilize the shape to be the fixed pivot that the mounting panel of U-shaped structure can be comparatively stable for the pivot can rotate stably on the mounting panel, carries out better fixed to pneumatic door.
The invention is further configured to: one end of the freezing storage box is fixed with a sliding block, one end of the sliding block is fixed with a base plate, the freezing storage box is placed in a mounting hole formed in the base plate, and the sliding block is arranged in the transverse guide rail in a sliding mode.
Through the technical scheme: utilize the slider to drive the backing plate and remove on the support plate platform, the fixed box of depositing that freezes that the installing port on the backing plate can be better simultaneously.
The invention is further configured to: the top of the support plate platform is provided with a through hole, and the size of the through hole is equal to that of the mounting opening.
Through the technical scheme: under step motor's effect, slider and backing plate drive and freeze and deposit the box and remove, freeze the through-hole that deposits the pipe and can follow the installing port on the backing plate and fall to the support plate platform through freezing, in the through-hole whereabouts to the framework, take out convenient high-efficient.
The invention is further configured to: the two-dimensional code scanner is fixed at one end, located at the pneumatic door, of the shell, and the miniature sensor is fixed at one end, far away from the pneumatic door, of the top of the support plate platform.
Through the technical scheme: carry out scanning discernment through two-dimensional code scanner biological sample, carry through vertical guide rail and transverse guide rail after the discernment, the miniature inductor carries out terminal discernment, confirms to reach with launch starting point article unanimous back, and the two-dimensional code that the storage had biological sample freezes deposits the pipe with free fall mode, and then gets into the support plate platform to outside by support plate platform propelling movement instrument.
The invention is further configured to: the bottom of tee bend sorter is fixed with the two-dimensional code camera, and the one end that the top of support plate platform is close to pneumatic door is fixed with the array inductor.
Through the technical scheme: the two-dimensional code camera is used for identification and confirmation, so that the safety of the biological sample is ensured to be error-free, and the array analysis is carried out through the array sensor.
Compared with the prior art, the invention provides a laboratory terminal machine, which has the following beneficial effects:
1. the laboratory terminal machine comprises a two-dimensional code cryopreservation pipe for storing biological samples, wherein the two-dimensional code cryopreservation pipe is sent to enter a transmission pipeline of a system by a support plate platform after two-dimensional code information of the two-dimensional code cryopreservation pipe is confirmed, the support plate platform provides sufficient zero-degree compressed air for the transmission pipeline to push the two-dimensional code cryopreservation pipe to move and finally complete the storage process of the biological samples, when the biological samples are taken out, the two-dimensional code cryopreservation pipe for storing the biological samples is pushed by the zero-degree compressed air from a sample post office in a pneumatic transmission pipeline and then enters the upper part of the support plate platform, after the biological samples are confirmed to be consistent with an article at a launching starting point, the two-dimensional code cryopreservation pipe for storing the biological samples freely falls into the support plate platform and is pushed out of an instrument by the support plate platform to complete the taking-out process of the biological samples, compared with the traditional manual transmission, the biological sample can be transferred in a more rapid, safe and whole-course tracing manner, the high efficiency of information and scientific research result conversion can be realized while the safe storage of the biological sample can be fully ensured, and the conversion of the scientific research result can be further assisted.
2. This laboratory terminating machine, the output shaft of cylinder is fixed with the connector, and the one end of pivot is fixed with rotates the dop of connecting in the connector, utilizes the connector to rotate to connect in the dop, makes things convenient for the cylinder drive pivot rotatory, realizes opening and shutting of pneumatic door.
3. According to the laboratory terminal, the shape of the connector is a U-shaped structure, the shape of the clamping head is a V-shaped structure, the clamping head with the V-shaped structure can be well embedded in the connector with the U-shaped structure, and when the clamping head with the V-shaped structure rotates, the clamping head has a large amplitude, and the opening of the pneumatic door is effectively enlarged.
4. This laboratory terminating machine, the one end that the shell is located pneumatic door is fixed with the two-dimensional code scanner, the one end that pneumatic door was kept away from at the top of support plate platform is fixed with miniature inductor, carry out scanning identification through the biological sample of two-dimensional code scanner, carry through vertical guide rail and transverse guide after the discernment, miniature inductor carries out terminal identification, confirm to reach with launch starting point article unanimous back, the two-dimensional code that the storage has biological sample freezes deposits the pipe with the free fall mode, and then get into the support plate platform, and outside by the instrument of support plate platform propelling movement.
Drawings
Fig. 1 is a schematic front view of a laboratory terminal according to the present invention;
fig. 2 is a schematic diagram of an expansion structure of a laboratory terminal according to the present invention;
fig. 3 is a schematic view of a partially developed structure of a laboratory terminal according to the present invention;
FIG. 4 is a schematic side view of a first partial side of a laboratory terminal according to the present invention;
fig. 5 is a schematic diagram of a second partial side view of a laboratory terminal according to the present invention;
FIG. 6 is a schematic top view of a laboratory terminal according to the present invention;
fig. 7 is an enlarged schematic structural diagram of a terminal in a laboratory according to the present invention shown in fig. 3;
fig. 8 is a schematic structural diagram of a carrier platform of a laboratory terminal according to the present invention;
fig. 9 is a schematic cross-sectional view of a pad of a laboratory terminal according to the present invention.
In the figure: 1. a base plate; 2. a housing; 3. a terminal main body; 4. a top cover; 5. a frame body; 6. a carrier plate platform; 7. a pneumatic door; 8. freezing and storing the box; 9. an array sensor; 10. a three-way separator; 11. a two-dimensional code camera; 12. a servo motor; 13. a stepping motor; 14. a micro-inductor; 15. a vertical guide rail; 16. a transverse guide rail; 17. a cylinder; 18. a connector; 19. clamping a head; 20. mounting a plate; 21. a rotating shaft; 22. a clamping block; 23. a two-dimensional code scanner; 24. a slider; 25. a through hole; 26. an installation port; 27. a backing plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1 to 9, a laboratory terminal includes a base plate 1, a housing 2, a top cover 4, and a terminal body 3, the terminal body 3 is fixed on an inner wall of the housing 2, the base plate 1 and the top cover 4 are respectively fixed on a bottom and a top of the housing 2, the terminal body 3 includes a frame 5 and a carrier platform 6, and the carrier plate platform 6 is arranged in the frame body 5, one side of the carrier plate platform 6 is fixed with a pneumatic door 7, one side of the shell 2 is provided with a door slot for the pneumatic door 7 to move, the top of the carrier plate platform 6 is provided with a vertical guide rail 15 and a transverse guide rail 16, the transverse guide rail 16 is provided with a freezing box 8, and the freezing storage tubes are uniformly arranged in the freezing storage box 8, a stepping motor 13 for driving a transverse guide rail 16 and a vertical guide rail 15 is fixed at the top of the support plate platform 6 through a support, and a servo motor 12 and a three-way separator 10 are fixed at the top of the support plate platform 6 through a support.
Specifically, one side that shell 2 is close to air door 7 is fixed with cylinder 17, and the output shaft of cylinder 17 is provided with pivot 21, and air door 7's bottom is located shell 2 and is fixed with mounting panel 20, and pivot 21 sets up in mounting panel 20, and pivot 21 is fixed with air door 7 bottom, utilizes cylinder 17 work, and drive pivot 21 realizes rotating for air door 7 can realize upset convenient and practical, and mounting panel 20 can effectively fixed rotating shaft 21, durable simultaneously.
Specifically, the output shaft of the cylinder 17 is fixed with a connector 18, one end of the rotating shaft 21 is fixed with a chuck 19 rotatably connected with the connector 18, and the connector 18 is rotatably connected in the chuck 19, so that the cylinder 17 can drive the rotating shaft 21 to rotate, and the opening and closing of the pneumatic door 7 are realized.
Specifically, the shape of the connector 18 is a U-shaped structure, the shape of the chuck 19 is a V-shaped structure, the chuck 19 with the V-shaped structure can be better embedded in the connector 18 with the U-shaped structure, and the chuck 19 with the V-shaped structure has a larger range when rotating, so that the opening of the pneumatic door 7 is effectively enlarged
Specifically, the mounting plate 20 is in a U-shaped structure, the rotating shaft 21 is fixed on the mounting plate 20 through the clamping block 22, and the rotating shaft 21 can be stably fixed by the mounting plate 20 in the U-shaped structure, so that the rotating shaft 21 can stably rotate on the mounting plate 20, and the pneumatic door 7 is well fixed.
Specifically, the one end of freezing and depositing box 8 is fixed with slider 24, and the one end of slider 24 is fixed with backing plate 27, freezes and deposits box 8 and places in the installing port 26 of seting up on backing plate 27, and slider 24 slides and sets up in transverse guide 16, utilizes slider 24 to drive backing plate 27 and removes on support plate platform 6, and the fixed freezing and depositing box 8 that installing port 26 on backing plate 27 can be better simultaneously.
Specifically, through-hole 25 has been seted up at the top of support plate platform 6, and through-hole 25 equals with the size of installing port 26, and under step motor 13's effect, slider 24 and backing plate 27 drive and freeze and deposit the box 8 and remove, and the freezing pipe after freezing can follow the through-hole 25 that the installing port 26 on the backing plate 27 whereabouts to support plate platform 6 falls in the framework 5 from through-hole 25, takes out convenient high-efficient.
Specifically, the one end that shell 2 is located air door 7 is fixed with two-dimensional code scanner 23, the one end that air door 7 was kept away from at the top of support plate platform 6 is fixed with miniature inductor 14, carry out scanning identification through two-dimensional code scanner 23 biological sample, carry through vertical guide 15 and transverse guide 16 after the discernment, miniature inductor 14 carries out terminal identification, confirm to reach and launch the unanimous back of starting point article, the storage has biological sample's two-dimensional code to freeze and deposits the pipe with the free fall mode, and then get into support plate platform 6, and push away the instrument outside by support plate platform 6.
Specifically, the bottom of three-way sorter 10 is fixed with two-dimensional code camera 11, and the top of support plate platform 6 is fixed with array inductor 9 near the one end of pneumatic door 7, utilizes two-dimensional code camera 11 to discern and confirms, ensures that biological sample safety is error-free to carry out array analysis through array inductor 9.
The working principle is as follows: the two-dimensional code cryopreserving pipe stored with the biological sample is sent to a transmission pipeline of a system by a support plate platform 6 after the two-dimensional code scanner 23 confirms the two-dimensional code information, the support plate platform 6 provides sufficient compressed air at 40 ℃ below zero into the transmission pipeline to push the two-dimensional code cryopreserving pipe to move, and finally the storage process of the biological sample is completed.
The control mode of the invention is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the supply of the power supply also belongs to the common knowledge in the field, and the invention is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the invention.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (9)
1. The utility model provides a laboratory terminating machine, includes bottom plate (1), shell (2), top cap (4) and terminal main part (3), its characterized in that, the inner wall at shell (2) is fixed in terminal main part (3), bottom plate (1) and top cap (4) are fixed respectively at the bottom and the top of shell (2), terminal main part (3) are including framework (5) and support plate platform (6), and support plate platform (6) set up in framework (5), one side of support plate platform (6) is fixed with pneumatic door (7), the gate slot mouth that supplies pneumatic door (7) to remove is seted up to one side of shell (2), the top of support plate platform (6) is provided with vertical guide (15) and transverse guide (16), be provided with on transverse guide (16) and freeze and deposit box (8), and impartially arrange in the box (8) that freezes and deposit the pipe, the top of support plate platform (6) is fixed with drive transverse guide (16) and vertical guide (16) through the support (15) The top of the carrier plate platform (6) is fixed with a servo motor (12) and a three-way separator (10) through a bracket.
2. The laboratory terminal according to claim 1, wherein a cylinder (17) is fixed to a side of the housing (2) close to the air door (7), an output shaft of the cylinder (17) is provided with a rotating shaft (21), a mounting plate (20) is fixed to a bottom of the air door (7) on the housing (2), the rotating shaft (21) is arranged in the mounting plate (20), and the rotating shaft (21) is fixed to a bottom of the air door (7).
3. A laboratory terminal according to claim 2, characterized in that the output shaft of the cylinder (17) is fixed with a connector (18), and one end of the rotating shaft (21) is fixed with a chuck (19) rotatably connected with the connector (18).
4. A laboratory terminal according to claim 3, characterized in that said connection head (18) is shaped as a U-shaped structure and said cartridge (19) is shaped as a V-shaped structure.
5. The laboratory terminal according to claim 4, wherein said mounting plate (20) is formed in a U-shaped configuration, and said shaft (21) is fixed to said mounting plate (20) by means of a clamping block (22).
6. The laboratory terminal according to claim 1, wherein a sliding block (24) is fixed at one end of the cryopreservation box (8), a backing plate (27) is fixed at one end of the sliding block (24), the cryopreservation box (8) is placed in a mounting opening (26) formed in the backing plate (27), and the sliding block (24) is slidably arranged in the transverse guide rail (16).
7. The laboratory terminal according to claim 6, wherein a through hole (25) is formed at the top of the carrier platform (6), and the size of the through hole (25) is equal to that of the mounting opening (26).
8. The laboratory terminal according to claim 1, wherein a two-dimensional scanner (23) is fixed to an end of the housing (2) located at the air door (7), and a micro-sensor (14) is fixed to an end of the top of the carrier platform (6) away from the air door (7).
9. The laboratory terminal according to claim 8, wherein a two-dimensional code camera (11) is fixed at the bottom of the three-way sorter (10), and an array sensor (9) is fixed at one end of the top of the carrier plate platform (6) close to the pneumatic door (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210169105.4A CN114348664A (en) | 2022-02-23 | 2022-02-23 | Laboratory terminating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210169105.4A CN114348664A (en) | 2022-02-23 | 2022-02-23 | Laboratory terminating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114348664A true CN114348664A (en) | 2022-04-15 |
Family
ID=81092578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210169105.4A Pending CN114348664A (en) | 2022-02-23 | 2022-02-23 | Laboratory terminating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114348664A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116645765A (en) * | 2023-06-02 | 2023-08-25 | 骅川(上海)科技有限公司 | Sample intelligent sharing method and internet of things based on IOT technology |
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| CN109097271A (en) * | 2018-10-09 | 2018-12-28 | 上海原能细胞生物低温设备有限公司 | A kind of program cooling device and its operating method |
| CN109292448A (en) * | 2018-10-23 | 2019-02-01 | 上海原能细胞生物低温设备有限公司 | Biological sample intellectual access mechanism |
| WO2020093585A1 (en) * | 2018-11-09 | 2020-05-14 | 上海原能细胞生物低温设备有限公司 | Biological sample repository and storage method therefor |
| CN111536732A (en) * | 2020-07-10 | 2020-08-14 | 基点生物科技(成都)有限公司 | Biological sample deep low temperature tube picking workstation |
| CN112254393A (en) * | 2020-10-23 | 2021-01-22 | 国健呈诺生物科技(北京)有限公司 | Ultralow temperature storage system |
-
2022
- 2022-02-23 CN CN202210169105.4A patent/CN114348664A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109097271A (en) * | 2018-10-09 | 2018-12-28 | 上海原能细胞生物低温设备有限公司 | A kind of program cooling device and its operating method |
| CN109292448A (en) * | 2018-10-23 | 2019-02-01 | 上海原能细胞生物低温设备有限公司 | Biological sample intellectual access mechanism |
| WO2020093585A1 (en) * | 2018-11-09 | 2020-05-14 | 上海原能细胞生物低温设备有限公司 | Biological sample repository and storage method therefor |
| CN111536732A (en) * | 2020-07-10 | 2020-08-14 | 基点生物科技(成都)有限公司 | Biological sample deep low temperature tube picking workstation |
| CN112254393A (en) * | 2020-10-23 | 2021-01-22 | 国健呈诺生物科技(北京)有限公司 | Ultralow temperature storage system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116645765A (en) * | 2023-06-02 | 2023-08-25 | 骅川(上海)科技有限公司 | Sample intelligent sharing method and internet of things based on IOT technology |
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Effective date of registration: 20240818 Address after: Room 101, 201, and 301, Building 18, No. 66 Guangfulin East Road, Songjiang District, Shanghai, 2016 Applicant after: Huachuan (Shanghai) Technology Co.,Ltd. Country or region after: China Address before: 201600 floors 1-2, building 1, No. 188, Xinyu Road, Songjiang District, Shanghai Applicant before: Cenjin (Shanghai) Technology Co.,Ltd. Country or region before: China |