CN219608380U - Automatic cover plate opening and closing mechanism - Google Patents
Automatic cover plate opening and closing mechanism Download PDFInfo
- Publication number
- CN219608380U CN219608380U CN202320443648.0U CN202320443648U CN219608380U CN 219608380 U CN219608380 U CN 219608380U CN 202320443648 U CN202320443648 U CN 202320443648U CN 219608380 U CN219608380 U CN 219608380U
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- cover plate
- face
- telescopic cylinder
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The utility model provides an automatic cover plate opening and closing mechanism, which belongs to the technical field of jig cover plates and aims to solve the problems that the existing test jig is low in cover plate opening and closing speed, low in detection efficiency and easy to influence the accuracy of a detection result, and comprises a test jig, a mounting piece, a correlation optical fiber supporting rod, a motor module, a fixing seat, a cover plate, a telescopic cylinder and a photoelectric sensor; the mounting piece is fixedly connected to the upper end face of the test jig; the opposite optical fiber supporting rods are fixedly connected to the left side and the right side of the mounting piece; the motor module is fixedly connected to the upper end face of the test jig; the fixed seat is fixedly connected to the front end face of the mounting piece; the cover plate is rotatably connected to the upper part of the test jig; the telescopic cylinder is fixedly connected above the cover plate; the photoelectric sensor is fixedly connected to the upper end face of the fixing seat; the utility model realizes the automatic opening and closing of the cover plate, effectively improves the detection efficiency and ensures the accuracy of the detection result.
Description
Technical Field
The utility model belongs to the technical field of jig cover plates, and particularly relates to an automatic cover plate opening and closing mechanism.
Background
After the production of the mobile phone screen is finished, the quality detection is carried out by using a test jig, the test jig is required to cover the detection table by using a cover plate when in use, and the existing test jig is usually required to be manually operated to realize the opening and closing of the cover plate.
For example, cn201921256140.X discloses an improved mobile phone screen detection jig, which comprises a lower cover and an upper cover, wherein the upper cover is movably arranged on the lower cover, a pressing block is movably arranged in the upper cover, a product module, a copper sheet cover plate, a PCB board and a connector are arranged in the lower cover, a fixing groove matched with the connector is formed in the back of the product module, the connector is arranged in the fixing groove in the back of the product module, the point positions on the copper sheet are in one-to-one correspondence with the point positions on the connector, the copper sheet is attached to the outer surface of the connector, a positioning table is arranged on the copper sheet cover plate, one-to-one correspondence with the positioning holes on the copper sheet and the product module can be realized, conductive adhesive is filled in the groove of the copper sheet cover plate, the PCB board is buckled, the PCB board is fixed with the product module through a lower positioning pin, and the fixed product module, the copper sheet cover plate, the PCB board and the connector are fixed in the inner groove of the lower cover through the lower positioning pin; the utility model has the advantages of convenient test and improved detection efficiency.
Based on the above, current test fixture opens and shuts and covers the board and all needs manual operation, and the speed is slower, not only leads to staff's intensity of labour great, still leads to detection efficiency lower, and easy because staff's misoperation leads to there is great gap between apron and the test bench moreover, influences the accuracy of testing result.
Disclosure of Invention
In order to solve the technical problems, the utility model provides an automatic cover plate opening and closing mechanism, which solves the problems that the existing test fixture needs manual operation for opening and closing the cover plate, the speed is low, the labor intensity of workers is high, the detection efficiency is low, and a large gap exists between the cover plate and a detection table due to misoperation of the workers, so that the accuracy of a detection result is influenced.
The utility model discloses a cover plate automatic opening and closing mechanism, which is realized by the following specific technical means:
an automatic cover plate opening and closing mechanism comprises a test fixture, a mounting piece, a correlation optical fiber supporting rod, a motor module, a fixing seat, a cover plate, a telescopic cylinder and a photoelectric sensor; the mounting piece is fixedly connected to the upper end face of the test jig; two opposite-shooting optical fiber support rods are arranged and are fixedly connected to the left side and the right side of the mounting piece respectively; the motor module is fixedly connected to the upper end face of the test jig; the fixing seat is fixedly connected to the front end face of the mounting piece, the fixing seat is rotationally connected with a motor shaft of the motor module, the front side of the fixing seat is rotationally connected with a connecting arm, and the connecting arm is fixedly connected with the motor shaft of the motor module; the cover plate is rotatably connected to the upper part of the test jig; the telescopic cylinder is fixedly connected above the cover plate; the photoelectric sensors are arranged in two, and the two photoelectric sensors are respectively and fixedly connected to the upper end face of the fixing seat and the lower part of the correlation optical fiber supporting rod on the right side.
Further, the fixing seat comprises an induction piece and a telescopic connecting rod; the two induction pieces are respectively and fixedly connected to the right end face of the connecting arm of the fixing seat and the right part of the rear end face of the access board; the upper portion of the telescopic connecting rod is rotationally connected to the front side of the fixed seat connecting arm, and the lower portion of the telescopic connecting rod is rotationally connected to the upper portion of the connecting seat.
Further, the test fixture comprises a detection table and a positioning block; the detection table is arranged at the upper part of the test jig; the locating blocks are provided with a plurality of locating blocks, and the locating blocks are fixedly connected to the upper end face of the detection table.
Further, the cover plate comprises a pressing shaft and a pressing block; the four pressing shafts are uniformly distributed and fixedly connected to the lower end face of the cover plate; the pressing blocks are provided with four pressing blocks, the four pressing blocks are respectively and fixedly connected to the lower end faces of the four pressing shafts, and the pressing blocks are cylindrical rubber pads.
Further, the correlation optical fiber supporting rod comprises an extension block and a connecting plate; the two extension blocks are respectively and fixedly connected to the inner side surfaces of the two correlation optical fiber support rods; the connecting plate is fixedly connected to the right end face of the extending block on the right side, and the connecting plate is fixedly connected with the photoelectric sensor on the front side; the two photoelectric sensors are connected with the motor module and the control circuit of the telescopic cylinder in parallel.
Further, the test fixture further comprises a limit groove; the two limiting grooves are respectively formed in the left side and the right side of the detection table;
the cover plate also comprises a butt strap, a connecting seat and a positioning rod; the access board is fixedly connected to the upper part of the cover board, and is fixedly connected with the telescopic cylinder; the connecting seat is fixedly connected to the upper end face of the access board; the positioning rod is rotationally connected to the front side of the cover plate, and is elastically connected with the cover plate through a spring; the positioning rod is clamped with the two limiting grooves;
the telescopic cylinder comprises a control piece; the control piece is fixedly connected to the front part of the piston rod of the telescopic cylinder; the control piece is of a right trapezoid structure.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the telescopic connecting rod is additionally arranged on the basis of a traditional cover plate opening and closing mechanism, the length of the telescopic connecting rod is adjusted by unscrewing the adjusting bolt on the telescopic connecting rod, the installation position of the cover plate is changed by changing the length of the telescopic connecting rod, the installation error is effectively reduced, the placement position of a detected piece on the detection table is rapidly determined by the positioning block, the piece placing speed is effectively improved, the detected piece is pressed by the pressing shaft, the positioning effect of the detected piece is improved, and the detected piece is prevented from being worn by the pressing block.
According to the utility model, the motor module and the telescopic cylinder are additionally arranged on the basis of the traditional cover plate opening and closing mechanism, the automatic opening and closing of the cover plate is realized through the motor module and the telescopic cylinder, the opening and closing speed of the cover plate is effectively improved, the labor intensity of workers is reduced, the detection efficiency is improved, the condition that a large gap exists between the cover plate and the detection table due to misoperation is avoided, the accuracy of a detection result is ensured, and the clamping and the stopping in the moving process of the positioning rod are avoided through the trapezoid control piece.
The utility model effectively reduces the installation error, improves the placing speed, improves the positioning effect on the detected piece, avoids the detected piece from being worn, realizes the automatic opening and closing of the cover plate, effectively improves the opening and closing speed of the cover plate, reduces the labor intensity of staff, improves the detection efficiency, avoids the condition that a large gap exists between the cover plate and the detection table due to the misoperation, ensures the accuracy of the detection result and avoids the occurrence of clamping in the moving process of the positioning rod.
Drawings
Fig. 1 is a schematic view of the overall structure of the present utility model.
FIG. 2 is a schematic diagram of a test fixture according to the present utility model.
Fig. 3 is a schematic structural view of the fixing base of the present utility model.
Fig. 4 is a schematic structural view of the cover plate of the present utility model.
Fig. 5 is a schematic structural view of the control member of the present utility model.
Fig. 6 is a schematic view of the structure of the positioning rod of the present utility model.
In the figure, the correspondence between the component names and the drawing numbers is:
1. testing a jig; 101. a detection table; 102. a positioning block; 103. a limit groove; 2. a mounting member; 3. a correlation optical fiber supporting rod; 301. an extension block; 302. a connecting plate; 4. a motor module; 5. a fixing seat; 501. an induction piece; 502. a telescopic connecting rod; 6. a cover plate; 601. a butt strap; 602. a connecting seat; 603. a positioning rod; 604. pressing a shaft; 605. briquetting; 7. a telescopic cylinder; 701. a control member; 8. a photoelectric sensor.
Detailed Description
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples.
Examples:
as shown in fig. 1 to 6:
the utility model provides an automatic cover plate opening and closing mechanism which comprises a test fixture 1, a mounting piece 2, a correlation optical fiber supporting rod 3, a motor module 4, a fixed seat 5, a cover plate 6, a telescopic cylinder 7 and a photoelectric sensor 8, wherein the mounting piece is arranged on the test fixture; the mounting piece 2 is fixedly connected to the upper end face of the test jig 1; two opposite-shooting optical fiber support rods 3 are arranged, and the two opposite-shooting optical fiber support rods 3 are fixedly connected to the left side and the right side of the mounting piece 2 respectively; the motor module 4 is fixedly connected to the upper end face of the test fixture 1; the fixed seat 5 is fixedly connected to the front end surface of the mounting piece 2, the fixed seat 5 is rotationally connected with a motor shaft of the motor module 4, a connecting arm is rotationally connected to the front side of the fixed seat 5, and the connecting arm is fixedly connected with the motor shaft of the motor module 4; the cover plate 6 is rotatably connected to the upper part of the test fixture 1; the telescopic cylinder 7 is fixedly connected above the cover plate 6; the photoelectric sensors 8 are arranged in two, and the two photoelectric sensors 8 are respectively and fixedly connected to the upper end face of the fixing seat 5 and the lower part of the opposite optical fiber supporting rod 3 on the right side.
The test fixture 1 comprises a detection table 101 and a positioning block 102; the detection table 101 is arranged at the upper part of the test fixture 1; a plurality of positioning blocks 102 are arranged, and the plurality of positioning blocks 102 are fixedly connected to the upper end surface of the detection table 101; in use, the placement position of a detected piece on the detection table 101 is rapidly determined through the positioning block 102, the piece placing speed is effectively improved, the connecting arm is installed through the fixing seat 5, and the correlation optical fiber supporting rod 3 is installed through the installation piece 2.
Wherein, the correlation optical fiber supporting rod 3 comprises an extension block 301 and a connecting plate 302; the two extension blocks 301 are arranged, and the two extension blocks 301 are respectively and fixedly connected to the inner side surfaces of the two correlation fiber support rods 3; the connecting plate 302 is fixedly connected to the right end face of the right extension block 301, and the connecting plate 302 is fixedly connected with the front photoelectric sensor 8; the two photoelectric sensors 8 are connected with the motor module 4 and the control circuit of the telescopic cylinder 7 in parallel; in use, the extension block 301 and the correlation fiber support rod 3 support correlation fibers, optical signals are sent into the detection area through the correlation fibers, after the parameters to be detected interact with light entering the detection area, optical properties of the light are changed to become a detected signal source, the signal source is sent into the optical detector through the correlation fibers to be demodulated, finally the detected parameters are obtained, whether the detected part is qualified or not is judged according to the detected parameters, and the photoelectric sensor 8 is installed through the connecting plate 302.
Wherein, the test fixture 1 further comprises a limit groove 103; two limit grooves 103 are arranged, and the two limit grooves 103 are respectively arranged on the left side and the right side of the detection table 101;
the cover plate 6 comprises a butt strap 601, a connecting seat 602 and a positioning rod 603; the access plate 601 is fixedly connected to the upper part of the cover plate 6, and the access plate 601 is fixedly connected with the telescopic cylinder 7; the connecting seat 602 is fixedly connected to the upper end surface of the access board 601; the positioning rod 603 is rotatably connected to the front side of the cover plate 6, and the positioning rod 603 is elastically connected with the cover plate 6 through a spring; the positioning rod 603 is clamped with the two limiting grooves 103;
the telescopic cylinder 7 comprises a control part 701; the control part 701 is fixedly connected to the front part of the piston rod of the telescopic cylinder 7; the control part 701 is in a right trapezoid structure; in use, the motor module 4 and the telescopic cylinder 7 are started, at this moment, the telescopic cylinder 7 drives the control part 701 to retract and pull the positioning rod 603 to rotate, the positioning rod 603 rotates and breaks away from the limiting groove 103, the motor shaft drives the connecting arm to rotate, the telescopic connecting rod 502 drives the connecting seat 602, the butt strap 601 and the cover plate 6 to rotate, thereby the cover plate 6 is opened, when the sensing piece 501 at the rear side moves to the middle part of the photoelectric sensor 8 at the rear side, the photoelectric sensor 8 at the rear side generates an electric signal, the motor module 4 and the telescopic cylinder 7 are closed, when the cover plate 6 needs to be closed, the motor module 4 and the telescopic cylinder 7 are started, at this moment, the telescopic cylinder 7 drives the control part 701 to extend to push the positioning rod 603 to rotate, the motor module 4 reverses to enable the telescopic connecting rod 502 to push the cover plate 6 to be closed, when the cover plate 6 moves to a designated position, the sensing piece 501 at the front side moves to the middle part of the photoelectric sensor 8 at the front side, the photoelectric sensor 8 at the front side generates an electric signal, the motor module 4 and the telescopic cylinder 7 are closed, the positioning rod 603 automatically resets and clamps the cover plate 6 in the limiting groove 103 under the action of a spring, automatic opening and closing of the cover plate 6 is realized, the automatic opening and closing speed of the cover plate 6 is improved, the opening and closing speed of the working staff is reduced, the opening and closing speed of the cover plate 6, the working efficiency is improved, the efficiency is ensured, the accurate detection efficiency is caused, the detection of the opening and the gap is caused by the detection situation, and the error in the detection situation, and the condition that the error is caused by the movement of the detection situation and the positioning plate.
Wherein the fixed seat 5 comprises an induction piece 501 and a telescopic connecting rod 502; the two induction pieces 501 are arranged, and the two induction pieces 501 are respectively and fixedly connected to the right end face of the connecting arm of the fixing seat 5 and the right part of the rear end face of the access board 601; the upper part of the telescopic connecting rod 502 is rotationally connected to the front side of the connecting arm of the fixed seat 5, and the lower part of the telescopic connecting rod 502 is rotationally connected to the upper part of the connecting seat 602; in use, the length of the telescopic connecting rod 502 is adjusted by unscrewing the adjusting bolt on the telescopic connecting rod 502, and the mounting position of the cover plate 6 is changed by changing the length of the telescopic connecting rod 502, so that the mounting error is effectively reduced.
Wherein, the cover plate 6 also comprises a pressing shaft 604 and a pressing block 605; the four pressing shafts 604 are arranged, and the four pressing shafts 604 are uniformly distributed and fixedly connected to the lower end face of the cover plate 6; the four pressing blocks 605 are arranged, the four pressing blocks 605 are respectively and fixedly connected to the lower end faces of the four pressing shafts 604, and the pressing blocks 605 are cylindrical rubber pads; in use, the pressing shaft 604 presses the detected piece, so that the positioning effect of the detected piece is improved, and the detected piece is prevented from being worn by the pressing block 605.
Specific use and action of the embodiment: in use, the length of the telescopic connecting rod 502 is adjusted by unscrewing the adjusting bolt on the telescopic connecting rod 502, the mounting position of the cover plate 6 is changed by changing the length of the telescopic connecting rod 502, the mounting error is effectively reduced, the placing position of the detected piece on the detecting table 101 is rapidly determined by the positioning block 102, the piece placing speed is effectively improved, the detected piece is pressed by the pressing shaft 604, the positioning effect of the detected piece is improved, the detected piece is prevented from being worn by the pressing block 605, the motor module 4 and the telescopic cylinder 7 are started, at the moment, the telescopic cylinder 7 drives the control part 701 to retract and pull the positioning rod 603 to rotate, the positioning rod 603 rotates to be separated from the limit groove 103, the motor shaft drives the connecting arm to rotate, the telescopic connecting rod 502 drives the connecting seat 602, the bonding plate 601 and the cover plate 6 to rotate, the cover plate 6 is opened, when the rear sensing piece 501 moves to the middle part of the rear photoelectric sensor 8, when the motor module 4 and the telescopic cylinder 7 are closed, and the cover plate 6 is required to be closed, the motor module 4 and the telescopic cylinder 7 are started, at the moment, the telescopic cylinder 7 drives the control member 701 to extend to push the positioning rod 603 to rotate, the motor module 4 reverses to enable the telescopic connecting rod 502 to push the cover plate 6 to be closed, when the cover plate 6 moves to a designated position, the front sensing piece 501 moves to the middle part of the front photoelectric sensor 8, the front photoelectric sensor 8 generates an electric signal, the motor module 4 and the telescopic cylinder 7 are closed, the positioning rod 603 is automatically reset and clamped in the limiting groove 103 to position the cover plate 6 under the action of a spring, the automatic opening and closing of the cover plate 6 is realized, the opening and closing speed of the cover plate 6 is effectively improved, the labor intensity of workers is reduced, the detection efficiency is improved, the condition that a large gap exists between the cover plate 6 and the detection table 101 due to misoperation is avoided, the accuracy of the detection result is ensured, and the clamping in the moving process of the positioning rod 603 is avoided through the trapezoid control piece 701.
Claims (6)
1. An automatic opening and closing mechanism for a cover plate is characterized in that: the device comprises a test jig (1), a mounting piece (2), a correlation optical fiber supporting rod (3), a motor module (4), a fixing seat (5), a cover plate (6), a telescopic cylinder (7) and a photoelectric sensor (8); the mounting piece (2) is fixedly connected to the upper end face of the test jig (1); the left side and the right side of the mounting piece (2) are fixedly connected with one correlation optical fiber supporting rod (3) respectively; the motor module (4) is fixedly connected to the upper end face of the test jig (1); the fixed seat (5) is fixedly connected to the front end face of the mounting piece (2); the cover plate (6) is rotationally connected to the upper part of the test fixture (1); the telescopic cylinder (7) is fixedly connected above the cover plate (6); the two photoelectric sensors (8) are respectively and fixedly connected to the upper end face of the fixing seat (5) and the lower part of the correlation optical fiber supporting rod (3) on the right side; the test fixture (1) comprises a detection table (101) and a positioning block (102); the cover plate (6) comprises a butt strap (601), a connecting seat (602) and a positioning rod (603).
2. A cover automatic opening and closing mechanism as recited in claim 1, wherein: the detection table (101) is arranged at the upper part of the test jig (1); the upper end face of the detection table (101) is fixedly connected with a plurality of positioning blocks (102).
3. A cover automatic opening and closing mechanism as recited in claim 1, wherein: the correlation optical fiber supporting rod (3) comprises an extension block (301) and a connecting plate (302); the inner side surface of each correlation optical fiber supporting rod (3) is fixedly connected with one extension block (301); the connecting plate (302) is fixedly connected to the right end face of the extending block (301) on the right side, and the connecting plate (302) is fixedly connected with the photoelectric sensor (8) on the front side; the two photoelectric sensors (8) are connected with the control circuits of the motor module (4) and the telescopic cylinder (7) in parallel.
4. A cover automatic opening and closing mechanism as recited in claim 1, wherein: the test fixture (1) further comprises a limit groove (103); the left side and the right side of the detection table (101) are respectively provided with a limit groove (103);
the access board (601) is fixedly connected to the upper part of the cover board (6), and the access board (601) is fixedly connected with the telescopic cylinder (7); the connecting seat (602) is fixedly connected to the upper end face of the access board (601); the positioning rod (603) is rotatably connected to the front side of the cover plate (6), and the positioning rod (603) is elastically connected with the cover plate (6); the positioning rod (603) is clamped with the two limiting grooves (103);
the telescopic cylinder (7) comprises a control part (701); the control piece (701) is fixedly connected to the front part of the piston rod of the telescopic cylinder (7).
5. A cover automatic opening and closing mechanism as recited in claim 1, wherein: the fixed seat (5) comprises an induction piece (501) and a telescopic connecting rod (502); the two induction pieces (501) are arranged, and the two induction pieces (501) are respectively and fixedly connected to the right end face of the connecting arm of the fixing seat (5) and the right part of the rear end face of the butt strap (601); the upper portion of the telescopic connecting rod (502) is rotatably connected to the front side of the connecting arm of the fixing seat (5), and the lower portion of the telescopic connecting rod (502) is rotatably connected to the upper portion of the connecting seat (602).
6. A cover automatic opening and closing mechanism as recited in claim 1, wherein: the cover plate (6) further comprises a pressing shaft (604) and a pressing block (605); the lower end face of the cover plate (6) is uniformly and fixedly connected with a plurality of pressing shafts (604); the lower end face of each pressing shaft (604) is fixedly connected with one pressing block (605).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320443648.0U CN219608380U (en) | 2023-03-10 | 2023-03-10 | Automatic cover plate opening and closing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320443648.0U CN219608380U (en) | 2023-03-10 | 2023-03-10 | Automatic cover plate opening and closing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219608380U true CN219608380U (en) | 2023-08-29 |
Family
ID=87747045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320443648.0U Active CN219608380U (en) | 2023-03-10 | 2023-03-10 | Automatic cover plate opening and closing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219608380U (en) |
-
2023
- 2023-03-10 CN CN202320443648.0U patent/CN219608380U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206683954U (en) | Fiber tensile test device | |
| CN105334449A (en) | High-precision automatic alignment ICT (In Circuit Tester) | |
| CN208419880U (en) | A kind of automatic detection tool for stamping parts of automobile | |
| CN113552468B (en) | Quality detection and use method of PCB | |
| CN219608380U (en) | Automatic cover plate opening and closing mechanism | |
| CN111256968A (en) | Full-automatic detection line of switch | |
| CN212059883U (en) | AOI inspection machine for silk screen printing plate | |
| CN111610465B (en) | ICT probe on-off automatic detection equipment | |
| CN108414927B (en) | Detection method based on automatic switch detection equipment | |
| CN219434593U (en) | Wear resistance testing device | |
| CN214149150U (en) | Optical image measuring instrument | |
| CN213658786U (en) | High-precision circuit board test fixture | |
| CN209045137U (en) | The capacitance homogeneity test equipment of small dimension OLED mould set product | |
| CN208520323U (en) | A kind of linear industrial robot mechanism for realizing full-automatic hole detection | |
| CN107339964B (en) | Automobile glass lifter steel wire rope length detection equipment | |
| CN220709018U (en) | Compaction structure of optical detector | |
| CN216350383U (en) | Mobile phone shell detection equipment | |
| CN211402633U (en) | PCB performance detection device | |
| CN216593276U (en) | Automatic detect screw thread equipment | |
| CN212872790U (en) | FCT (Flexible conductive terminal) fixture for automatic adjustment and test of knob dial switch | |
| CN210136378U (en) | Detection apparatus for polyphaser module | |
| CN215340060U (en) | Wire resistance test fixture | |
| CN220508039U (en) | Multi-lens image measuring instrument | |
| CN205210258U (en) | High accuracy automatic alignment ICT test machine | |
| CN215953398U (en) | Multi-key hand feeling automatic detection device for mobile phone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |