CN220040908U - Fine adjustment alignment mechanism for lighting test - Google Patents
Fine adjustment alignment mechanism for lighting test Download PDFInfo
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- CN220040908U CN220040908U CN202321486028.1U CN202321486028U CN220040908U CN 220040908 U CN220040908 U CN 220040908U CN 202321486028 U CN202321486028 U CN 202321486028U CN 220040908 U CN220040908 U CN 220040908U
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- driving plate
- fine adjustment
- positioning
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- 230000007246 mechanism Effects 0.000 title claims abstract description 34
- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 abstract description 16
- 238000010586 diagram Methods 0.000 description 5
- 230000004308 accommodation Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000009955 peripheral mechanism Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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Abstract
The utility model discloses a fine adjustment alignment mechanism for lighting test, which comprises an alignment driving plate, an alignment wheel fixedly arranged at one side of the alignment driving plate and a base station; the alignment driving plate is connected with the base station through a guide rail pair. The fixed location strake that is provided with in top of base station, the location strake has the overlap joint face that is used for the overlap joint to wait to detect the panel. The alignment driving plate is fixedly connected with a driving device which can drive the alignment driving plate to be far away from and close to the positioning edge strip along the guide rail pair. The panel to be tested is lapped on the lapping plate surface, and the side wall of the alignment wheel is abutted with the side edge of the panel to be tested. The alignment wheel of the fine adjustment alignment mechanism for the lighting test is abutted against the panel to be detected, so that the panel to be detected is pushed by a preset distance, the position of the panel to be detected is finely adjusted, and the positioning accuracy of the panel to be detected is improved; during the pushing process, the side wall of the alignment wheel is abutted against the panel to be detected, so that friction of the panel to be detected in the pushing process is reduced.
Description
Technical Field
The utility model relates to a fine adjustment alignment mechanism for lighting test.
Background
In the panel product positioning process of the lighting test, a fine adjustment positioning mechanism is often required to perform fine adjustment on the position of the panel product, so that the accuracy of the placement position is improved.
Taking the liquid crystal panel product lighting test process as an example, the panel to be detected is transferred to the detection station through a grabbing manipulator (a suction claw) or other panel carrying mechanisms, and a backlight mechanism (such as a lamp box) below the detection station simulates a backlight environment when the panel is normally used, so as to test whether the display state of the panel is normal or not. In the process of transferring the panel to be detected, the panel to be detected is generally ensured to be accurately placed in the detection station in several ways: 1. the grabbing manipulator is positioned in a relatively accurate stroke, and the panel to be detected is directly placed in a designated area; 2. manually placing the panels into a detection station (typically for smaller sized panels or smaller production scales); 3. the panel is placed to an initial position in the station by a grabbing manipulator or manually, and the position of the panel is further adjusted by an alignment fine adjustment mechanism.
Along with the continuous development of the panel industry, the fine adjustment mechanism is required to realize the alignment fine adjustment function on one hand, so that the positioning accuracy of the panel to be detected is improved; on the other hand, the whole volume is reduced, and interference with other peripheral mechanisms in the operation process is reduced.
Disclosure of Invention
The utility model provides a fine adjustment alignment mechanism for lighting test, which can realize the alignment fine adjustment function more stably.
The utility model provides the following technical scheme:
a fine adjustment alignment mechanism for lighting test comprises an alignment driving plate, at least one rotatable alignment wheel fixedly arranged on one side of the alignment driving plate and a base for supporting the alignment driving plate; the alignment driving plate is positioned above the base station; the alignment driving plate is connected with the base station through a guide rail pair. The fixed location strake that is provided with in top of base station, the location strake has the overlap joint face that is used for the overlap joint to wait to detect the panel. The alignment driving plate is fixedly connected with a driving device which can drive the alignment driving plate to be far away from and close to the positioning edge strip along the guide rail pair. And when the fine adjustment is performed, the panel to be tested is lapped on the lapping plate surface, and the side wall of the alignment wheel is abutted against the side edge of the panel to be tested.
Preferably, the positioning edge strip is provided with an alignment groove corresponding to the position of the alignment wheel; the alignment groove extends from bottom to top and penetrates through the lap joint plate surface at the corresponding position; when the alignment driving plate moves towards the direction where the positioning edge strip is located, the alignment wheel can enter the alignment groove.
Preferably, the overlapping plate surface of the positioning edge strip comprises a shading part. When the panel to be tested is put on the lap joint plate surface, the lower plate surface of the panel to be tested is attached to the shading part. The shading part is positioned on one side of the positioning edge strip far away from the alignment wheel, and the alignment groove is positioned on one side of the positioning edge strip near to the alignment wheel.
Preferably, the light shielding part is a continuous flat plate surface, the length of the light shielding part is a, the length of the lower plate surface of the panel to be tested, which is placed on the lap plate surface, is b, and a is greater than or equal to b.
Preferably, the driving device comprises a driving air cylinder fixedly connected with the base, the driving air cylinder is positioned at the opposite side of the positioning edge strip, and an air cylinder rod of the driving air cylinder is fixedly connected with the alignment driving plate; the base is fixedly provided with an air cylinder bracket, and the driving air cylinder is fixedly connected with the air cylinder bracket.
Preferably, the alignment driving plate is fixedly provided with a first limiting protrusion, and the first limiting protrusion protrudes downwards from the alignment driving plate. The base is fixedly provided with a second limiting protrusion, and the second limiting protrusion protrudes upwards from the base. An adjusting screw hole is formed in the first limiting protrusion, and an adjusting bolt is connected with the adjusting screw hole; the length of one end of the adjusting bolt extending out of the adjusting screw hole can be changed by rotating the adjusting bolt under the pushing of the screw thread; when the alignment driving plate drives the first limiting bulge to move towards the direction where the positioning edge is located, the movement track of the first limiting bulge is L, and at least one part of the second limiting bulge is positioned on the extension line of the track L; when the alignment driving plate moves towards the direction where the positioning edge strip is located and moves to a preset limit position, one end of the adjusting bolt extending out of the adjusting screw hole abuts against the second limiting protrusion.
Preferably, a positioning groove for embedding the positioning edge strip is formed in the base. When the positioning edge strips are fixed in the positioning grooves, the lap joint plate surfaces of the positioning edge strips are flush with the upper plate surfaces of the base stations.
Preferably, the lower plate surface of the alignment driving plate is fixedly connected with the base station through a guide rail pair; the base is provided with a first accommodating groove corresponding to the alignment driving plate, and the base is provided with a second accommodating groove for accommodating the guide rail pair; after the alignment driving plate is fixedly connected with the base station, the upper plate surface of the alignment driving plate is flush with the upper plate surface of the base station.
Preferably, a plurality of counterpoint wheels are arranged in proper order along counterpoint drive plate length direction, the fixed a plurality of connecting blocks that are provided with on the counterpoint drive plate, the connecting block is protruding to counterpoint groove place direction from the side of counterpoint drive plate, counterpoint wheel and the connecting block fixed connection of corresponding position.
Preferably, the positioning edge strip is detachably and fixedly connected with the base station.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. the panel to be detected is lapped on the fine adjustment alignment mechanism for the lighting test, and the alignment wheel of the fine adjustment alignment mechanism for the lighting test is abutted against the panel to be detected, so that the panel to be detected is pushed by a preset distance, the position of the panel to be detected is finely adjusted, and the positioning accuracy of the panel to be detected is improved; during the pushing process, the side wall of the alignment wheel is abutted against the panel to be detected, so that friction of the panel to be detected in the pushing process is reduced.
2. The detachable positioning edge strips are arranged, and the positioning edge strips can be detached and maintained when the plate surfaces are lapped during cleaning and maintenance.
3. The alignment driving plate is integrally accommodated in the base station, so that the action interference with other peripheral mechanisms is reduced, and the integral volume is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the positional relationship between the alignment wheel and the alignment edge strip according to the present utility model;
FIG. 3 is a schematic diagram of the positional relationship between the positioning edge and the positioning groove according to the present utility model;
FIG. 4 is a schematic view of the construction of the locating strake of the present utility model;
FIG. 5 is a schematic structural view showing the positional relationship between the alignment driving plate and the first accommodating groove according to the present utility model;
FIG. 6 is a schematic structural view of the positional relationship between the first spacing protrusion and the second spacing protrusion of the present utility model;
FIG. 7 is a schematic diagram showing a structure of an alignment driving board pushing a panel to be inspected to perform fine adjustment alignment according to an embodiment of the present utility model;
FIG. 8 is a schematic diagram of a method for using a fine adjustment alignment mechanism for lighting test according to an embodiment of the present utility model;
reference numerals illustrate: 1. a base station; 11. the second limiting bulge; 12. a positioning groove; 13. a first accommodation groove; 14. a second accommodation groove; 2. an alignment driving plate; 21. the first limiting protrusion; 22. adjusting the screw hole; 23. an adjusting bolt; 3. an alignment wheel; 31. a connecting block; 4. a guide rail pair; 5. a driving cylinder; 51. a cylinder bracket; 6. positioning the edge strips; 61. overlapping the plate surfaces; 611. a light shielding section; 62. an alignment groove; b. a panel to be detected; c. the lower plate surface of the panel to be detected; d. the light shielding part is positioned.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-8.
Example 1
Referring to fig. 1 and 2, a fine adjustment aligning mechanism for lighting test includes an aligning driving plate 2, at least one rotatable aligning wheel 3 fixedly disposed on one side of the aligning driving plate 2, and a base 1 for supporting the aligning driving plate 2. The alignment driving plate 2 is positioned above the base 1, and the alignment driving plate 2 is connected with the base 1 through the guide rail pair 4. Referring to fig. 2, a positioning edge strip 6 is fixedly arranged above the base 1, and the positioning edge strip 6 is provided with a lapping plate surface 61 for lapping the panel to be detected. The alignment driving plate 2 is fixedly connected with a driving device which can drive the alignment driving plate 2 to be far away from and close to the positioning edge strip 6 along the guide rail pair 4. During fine adjustment alignment, the panel to be tested is lapped on the lapping plate surface 61, and the side wall of the alignment wheel 3 is abutted with the side edge of the panel to be tested. When the panel to be tested is in butt joint with the alignment wheel 3 in use, the alignment wheel 3 is tangent with the side edge of the panel a to be tested, the contact surface is relatively small, friction between the panel a and the alignment wheel is reduced, in addition, the alignment wheel 3 can rotate, and when the panel to be tested moves along the direction perpendicular to the moving direction of the alignment driving plate 2, the alignment wheel 3 can rotate.
Referring to fig. 1 and 2, the driving device comprises a driving cylinder 5 fixedly connected with the base 1, the driving cylinder 5 is positioned at the opposite side of the positioning edge strip 6, and a cylinder rod of the driving cylinder 5 is fixedly connected with the alignment driving plate 2. The base 1 is fixedly provided with a cylinder bracket 51, and the driving cylinder 5 is fixedly connected with the cylinder bracket 51.
Referring to fig. 1 and 2, in some embodiments of the present utility model, in order to reduce friction between the lower surface and the overlapping surface of the panel to be inspected, in the fine adjustment alignment mechanism for lighting test, an alignment groove 62 corresponding to the position of the alignment wheel 3 is provided on the alignment rim 6. The alignment groove 62 extends from bottom to top and penetrates the corresponding overlapping plate surface 61. When the alignment driving plate 2 moves towards the direction of the positioning edge strip 6, the alignment wheel 3 can enter the alignment groove 62. When the panel to be detected is placed above the lapping plate surface 61, the panel to be detected at the position of the alignment groove 62 is suspended, so that friction can be reduced in the process of pushing the panel. In the fine adjustment alignment process, the driving device drives the alignment driving plate 2 to move in the direction of the panel to be detected (the panel to be detected is put on the lap joint plate surface 61), and the alignment wheel 3 gradually enters the alignment groove 62, finally abuts against the panel to be detected, and pushes the panel to be detected to a preset position.
Referring to fig. 2, a plurality of alignment wheels 3 are sequentially arranged along the length direction of the alignment driving board 2, a plurality of connection blocks 31 are fixedly arranged on the alignment driving board 2, the connection blocks 31 protrude from the side edge of the alignment driving board 2 to the direction of the alignment grooves 62, and the alignment wheels 3 are fixedly connected with the connection blocks 31 at corresponding positions.
Referring to fig. 3 and 4, in some embodiments of the present utility model, the fine adjustment alignment mechanism for lighting test is installed in the lighting test fixture of the liquid crystal panel, and the base 1 is a support of the lighting test fixture. Further, the lapping plate surface 61 of the positioning edge 6 includes a light shielding portion 611. When the panel to be tested is placed on the lapping plate surface 61, the lower plate surface of the panel to be tested is attached to the light shielding portion 611. As shown in fig. 4, and referring to fig. 1 and 3, the light shielding portion 611 is located on a side of the positioning rim 6 away from the alignment wheel 3, and the alignment groove 62 is located on a side of the positioning rim 6 close to the alignment wheel 3. When the lower plate surface of the panel to be tested is connected with the lap joint plate surface 61, the lower plate surface of the panel to be tested is attached to the shading part 611, so that the leakage amount of light from the lower plate surface of the panel to be tested to the lap joint plate surface 61 is reduced. In addition, when maintaining location strake 6, can dismantle it, be favorable to the maintenance operation. Different positioning strips 6 can also be replaced according to different panel types. Preferably, the positioning edge strip 6 is detachably and fixedly connected with the base station 1; further, the positioning edge strip 6 is fixedly connected with the base 1 through a locking screw.
Referring to fig. 4, the light shielding portion 611 is preferably a continuous flat plate surface, the length of the light shielding portion 611 is a, and the length of the lower plate surface of the panel to be tested placed on the lapping plate surface 61 is b, and a is equal to or greater than b. In this way, the overlapping portion of the lower plate surface of the panel to be detected can be completely attached to the light shielding portion 611 at the corresponding position, which is beneficial to reducing light leakage between the lower plate surface and the overlapping plate surface 61.
Referring to fig. 5 and 6, it is preferable that the alignment driving plate 2 is fixedly provided with a first limit protrusion 21, and the first limit protrusion 21 protrudes downward from the alignment driving plate 2. The base 1 is fixedly provided with a second limiting protrusion 11, and the second limiting protrusion 11 protrudes upwards from the base 1. An adjusting screw hole 22 is formed in the first limiting protrusion 21, and an adjusting bolt 23 is connected with the adjusting screw hole 22; the length of one end of the adjusting bolt 23 extending out of the adjusting screw hole 22 can be changed by rotating the adjusting bolt 23 under the pushing of the screw thread. Referring to fig. 2 and 6, when the alignment driving board 2 drives the first limiting protrusion 21 to move in the direction of the positioning edge 6, the movement track of the first limiting protrusion 21 is L, and at least a part of the second limiting protrusion is located on an extension line of the track L; when the alignment driving plate 2 moves towards the direction of the positioning edge strip 6 and moves to a preset limit position, one end of the adjusting bolt 23 extending out of the adjusting screw hole 22 abuts against the second limiting protrusion 11. The physical limit is performed in a manner that the adjusting bolt 23 is abutted against the second limit protrusion 11, so that the accuracy of forming the movement of the alignment driving plate 2 is improved.
Example 2
This embodiment differs from the other embodiments in that:
referring to fig. 2 and 3, the base 1 is provided with a positioning groove 12 for receiving the positioning rim 6. When the positioning edge strip 6 is fixed in the positioning groove 12, the lap joint plate surface 61 of the positioning edge strip 6 is flush with the upper plate surface of the base station 1. Further, as shown in fig. 5, the lower plate surface of the alignment driving plate 2 is fixedly connected to the base 1 via a guide rail pair 4. The base 1 is provided with a first accommodation groove 13 corresponding to the alignment drive plate 2, and the base 1 is provided with a second accommodation groove 14 for accommodating the guide rail pair 4. After the alignment driving plate 2 is fixedly connected with the base 1, the upper plate surface of the alignment driving plate 2 is flush with the upper plate surface of the base 1.
In this embodiment, the whole volume is relatively reduced by adopting the scheme of sinking the alignment driving plate 2 and the positioning edge strip 6 into the base 1, and interference to other peripheral mechanisms (such as peripheral flexible wiring, transfer manipulator and the like) can be reduced in the movement process.
Example 3
To facilitate an understanding of the disclosed embodiments by those skilled in the art. In this embodiment, the use of the fine adjustment alignment mechanism for lighting test disclosed in the above embodiment in the alignment device is exemplified.
Referring to fig. 7, in this usage scenario, a set of opposite sides of a panel product needs to be positioned, a fine adjustment alignment mechanism for lighting test is disposed in a movable side of the set of opposite sides, the movable side is disposed opposite to a fixed side, the fixed side is fixed in position, and a lapping platform for lapping the panel is provided, and when the panel is initially placed in the alignment device, corresponding part of the panel faces of the panel are respectively lapped on the lapping plate face 61 and the lapping platform of the fixed side.
Starting the driving device, driving the air cylinder 5 to push the alignment driving plate 2 to move towards the direction of the positioning edge strip 6, and pushing the panel after the alignment wheel is contacted with the panel until the other side edge of the panel is abutted against the fixed edge. Thus, fine adjustment and alignment of the panel are completed. In the use process of the fine adjustment alignment mechanism for the lighting test, the alignment driving plate can be withdrawn after fine adjustment alignment is completed, so that the alignment wheel does not lean against the panel product to be detected any more, and the position of the alignment driving plate can be continuously kept, so that the alignment wheel is kept in tight contact with the panel to be detected, and the occurrence of shaking of the panel to be detected is reduced.
In this use scenario, shown in fig. 8, two sets of opposite edges of the panel product are trimmed to position, and the trimming process can be described with reference to fig. 7. When one group of opposite side positioning is completed and the other group of opposite side positioning is performed, the alignment wheel 3 on the opposite side positioned first rotates due to the movement of the panel, so that hard friction between the alignment wheel and the panel is avoided.
The above examples are merely examples of the use scenario/method of the fine adjustment aligning mechanism for lighting test disclosed in the present utility model, and these use methods are not the technical solutions claimed in the present utility model, so as to further facilitate understanding of the technical solutions disclosed in the present utility model by those skilled in the art. Without violating the application mechanisms, the person skilled in the art can perform the configuration of the fine adjustment alignment mechanism for lighting test according to the specific application requirements.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (10)
1. The utility model provides a test of lighting a lamp is with fine setting aligning mechanism which characterized in that: the device comprises an alignment driving plate, at least one rotatable alignment wheel fixedly arranged on one side of the alignment driving plate and a base station for supporting the alignment driving plate; the alignment driving plate is positioned above the base station; the alignment driving plate is connected with the base station through a guide rail pair;
a positioning edge strip is fixedly arranged above the base table, and is provided with a lap joint plate surface for lap joint of the panel to be detected;
the alignment driving plate is fixedly connected with a driving device which can drive the alignment driving plate to be far away from and close to the positioning edge strip along the guide rail pair;
and when the fine adjustment is performed, the panel to be tested is lapped on the lapping plate surface, and the side wall of the alignment wheel is abutted against the side edge of the panel to be tested.
2. The fine adjustment positioning mechanism for lighting test as set forth in claim 1, wherein: the positioning edge strip is provided with an alignment groove corresponding to the position of the alignment wheel; the alignment groove extends from bottom to top and penetrates through the lap joint plate surface at the corresponding position; when the alignment driving plate moves towards the direction where the positioning edge strip is located, the alignment wheel can enter the alignment groove.
3. The fine adjustment positioning mechanism for lighting test as set forth in claim 2, wherein:
the lap joint plate surface of the positioning edge strip comprises a shading part;
when the panel to be tested is put on the lap joint plate surface, the lower plate surface of the panel to be tested is attached to the shading part;
the shading part is positioned on one side of the positioning edge strip far away from the alignment wheel, and the alignment groove is positioned on one side of the positioning edge strip near to the alignment wheel.
4. A fine-tuning alignment mechanism for lighting test as defined in claim 3, wherein: the light shielding part is a continuous flat plate surface, the length of the light shielding part is a, the length of the lower plate surface of the panel to be tested, which is put on the lap joint plate surface, is b, and a is greater than or equal to b.
5. The fine adjustment positioning mechanism for lighting test as set forth in claim 1, wherein: the driving device comprises a driving air cylinder fixedly connected with the base, the driving air cylinder is positioned at the opposite side of the positioning edge strip, and an air cylinder rod of the driving air cylinder is fixedly connected with the alignment driving plate; the base is fixedly provided with an air cylinder bracket, and the driving air cylinder is fixedly connected with the air cylinder bracket.
6. The fine adjustment positioning mechanism for lighting test as set forth in claim 1, wherein: the alignment driving plate is fixedly provided with a first limit bulge, and the first limit bulge protrudes downwards from the alignment driving plate;
a second limiting protrusion is fixedly arranged on the base, and protrudes upwards from the base;
an adjusting screw hole is formed in the first limiting protrusion, and an adjusting bolt is connected with the adjusting screw hole; the length of one end of the adjusting bolt extending out of the adjusting screw hole can be changed by rotating the adjusting bolt under the pushing of the screw thread; when the alignment driving plate drives the first limiting bulge to move towards the direction where the positioning edge is located, the movement track of the first limiting bulge is L, and at least one part of the second limiting bulge is positioned on the extension line of the track L; when the alignment driving plate moves towards the direction where the positioning edge strip is located and moves to a preset limit position, one end of the adjusting bolt extending out of the adjusting screw hole abuts against the second limiting protrusion.
7. The fine adjustment positioning mechanism for lighting test as set forth in claim 1, wherein: the base station is provided with a positioning groove for embedding the positioning edge strip;
when the positioning edge strips are fixed in the positioning grooves, the lap joint plate surfaces of the positioning edge strips are flush with the upper plate surfaces of the base stations.
8. The fine adjustment positioning mechanism for lighting test as set forth in claim 5, wherein: the lower plate surface of the alignment driving plate is fixedly connected with the base station through a guide rail pair; the base is provided with a first accommodating groove corresponding to the alignment driving plate, and the base is provided with a second accommodating groove for accommodating the guide rail pair; after the alignment driving plate is fixedly connected with the base station, the upper plate surface of the alignment driving plate is flush with the upper plate surface of the base station.
9. The fine adjustment positioning mechanism for lighting test as set forth in claim 1, wherein: the alignment driving plate is fixedly provided with a plurality of connecting blocks, the side edges of the connecting blocks self-alignment driving plate protrude towards the direction where the alignment grooves are located, and the alignment wheels are fixedly connected with the connecting blocks at the corresponding positions.
10. The fine adjustment positioning mechanism for lighting test as set forth in claim 1, wherein: the positioning edge strip is detachably and fixedly connected with the base station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321486028.1U CN220040908U (en) | 2023-06-12 | 2023-06-12 | Fine adjustment alignment mechanism for lighting test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321486028.1U CN220040908U (en) | 2023-06-12 | 2023-06-12 | Fine adjustment alignment mechanism for lighting test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220040908U true CN220040908U (en) | 2023-11-17 |
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ID=88743132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321486028.1U Active CN220040908U (en) | 2023-06-12 | 2023-06-12 | Fine adjustment alignment mechanism for lighting test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220040908U (en) |
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2023
- 2023-06-12 CN CN202321486028.1U patent/CN220040908U/en active Active
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