CN214125294U - Dust-proof optical module shell assembly - Google Patents
Dust-proof optical module shell assembly Download PDFInfo
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- CN214125294U CN214125294U CN202023092519.7U CN202023092519U CN214125294U CN 214125294 U CN214125294 U CN 214125294U CN 202023092519 U CN202023092519 U CN 202023092519U CN 214125294 U CN214125294 U CN 214125294U
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- 230000003287 optical effect Effects 0.000 title abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000005693 optoelectronics Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of communication equipment, especially, be a dust proof optical module shell subassembly, including the connecting box, establish to the opening on the right side of connecting box, fixed mounting has two square poles between the front side inner wall of connecting box and the rear side inner wall, the sliding sleeve is equipped with the pinion rack on the square pole, the rotating mounting has the gear on the bottom inner wall of connecting box, one side that two pinion racks are close to each other meshes with the gear mutually, the front side fixed mounting that is located left pinion rack has first flexible steel cable, the rear side fixed mounting that is located the pinion rack of rear side has the flexible steel cable of second, equal fixed mounting has first dead lever on the front side inner wall of connecting box and the rear side inner wall, the sliding sleeve is equipped with first carriage release lever on the first dead lever. The utility model discloses a set up pinion rack, gear, L shape pole, first flexible steel cable, square pole and first carriage release lever and cooperate, solved and can not fix the baffle after opening and can not fix the problem of probing the piece fast.
Description
Technical Field
The utility model relates to a communication equipment technical field specifically is a dust proof optical module shell subassembly.
Background
The optical transceiver module (optical module for short) mainly functions to realize photoelectric/electro-optical conversion, generally comprises an optoelectronic device, a functional circuit and an optical interface, and is an important component of an optical fiber communication system, and mainly comprises SFP, GBIC, XFP and the like according to different packaging forms. When the optoelectronic device is not used, the optical interface is in an idle state, dust in the air can easily enter the optical module through the optical interface to corrode the optoelectronic device, so that the optoelectronic device cannot normally work, and therefore a dustproof device needs to be arranged to seal the optical interface. At present, the dust keeper that is used for the optical module all is independent part, arrange the dust keeper in the optical interface when needing to seal, take off it when not needing, cause dust keeper to lose very easily like this, traditional module shell mostly has the connecting box simultaneously, constitute such as baffle and module, and traditional module shell need be opened the baffle when using and carry out the installation module, but the baffle after opening can not be fixed by the present mostly, when the staff of not being convenient for, traditional module shell mostly can not fix the module of groping fast, waste a large amount of manpower and materials, can not satisfy the user demand, therefore we have proposed a dust-proof shell subassembly and are used for solving above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a dust proof optical module shell subassembly has solved the baffle after can not will opening and has fixed and can not fix the problem of touching the piece fast.
The second technical proposal.
In order to achieve the above object, the utility model provides a following technical scheme: a dust-proof optical module shell assembly comprises a connecting box, wherein the right side of the connecting box is provided with an opening, two square rods are fixedly arranged between the front inner wall and the rear inner wall of the connecting box, toothed plates are sleeved on the square rods in a sliding manner, gears are rotatably arranged on the inner wall of the bottom of the connecting box, one sides, close to each other, of the two toothed plates are meshed with the gears, a first flexible steel rope is fixedly arranged on the front side of the toothed plate on the left side, a second flexible steel rope is fixedly arranged on the rear side of the toothed plate on the rear side, first fixing rods are fixedly arranged on the front inner wall and the rear inner wall of the connecting box respectively, first moving rods are sleeved on the first fixing rods in a sliding manner, first balls are embedded on the sides, close to each other, of the two first moving rods, first springs are fixedly arranged between the end parts, far away from each other, of the two first moving rods and the inner wall of the connecting box, and the first springs are movably sleeved on the corresponding first fixing rods, a rectangular block is fixedly arranged on the lower surface of the first moving rod, a second fixed pulley of the first fixed pulley is rotatably arranged on the inner wall of the rear side of the front inner wall of the connecting box, the end parts of the first flexible steel rope and the second flexible steel rope are fixedly connected with one side of the rectangular block by bypassing one side of the corresponding first fixed pulley and the second fixed pulley, a rectangular hole is arranged on the inner wall of the left side of the connecting box, a second fixed rod is fixedly arranged between the inner wall of the front side and the inner wall of the rear side of the rectangular hole, an L-shaped rod is slidably sleeved on the second fixed rod, a second spring is fixedly arranged between the front side of the L-shaped rod and the inner wall of the front side of the rectangular hole, the second spring is movably sleeved on the second fixed rod, the right end of the L-shaped rod is fixedly connected with the left side of the toothed plate on the left side, the right side of the connecting box is movably contacted with a module shell, a first trapezoidal block is fixedly arranged on the rear side of the front side and the rear side of the module shell, a first inclined plane is arranged on one side of the two first trapezoidal blocks, which are far away from each other, first draw-in groove has all been seted up to one side that two first trapezoidal pieces kept away from each other, first ball and first inclined plane rolling contact, and first carriage release lever clamps with first draw-in groove mutually.
As a preferred technical proposal of the utility model, the upper surface of the connecting box is provided with a rectangular groove, the left inner wall of the rectangular groove is fixedly provided with a third fixed rod, the third fixed rod is slidably sleeved with a second moving rod, a third spring is fixedly arranged between the left end of the second moving rod and the left inner wall of the rectangular groove, the third spring is movably sleeved on the third fixed rod, the right end of the second moving rod is embedded with a second ball, the upper surface of the connecting box is rotatably provided with a baffle plate, the lower surface of the baffle plate is fixedly provided with a second trapezoid block, the lower surface of the second trapezoid block is arranged into a second inclined surface, the lower surface of the second trapezoid block is provided with a second clamping groove, the second ball is in rolling contact with the second inclined surface, the second moving rod is clamped with the second clamping groove, the lower surface of the second moving rod is fixedly provided with a square block, the left side of the square block is fixedly provided with a connecting rod, the left end of the connecting rod extends to the outside of the connecting box and is fixedly provided with a round block.
As a preferred technical scheme of the utility model, inlay on the baffle and be equipped with the dust screen, fixed mounting has two first diaphragms on the top inner wall of connecting box, has seted up the square groove on the first diaphragm, and the last fixed surface of module casing installs two second diaphragms, second diaphragm and the square groove movable contact who corresponds.
As a preferred technical scheme of the utility model, the front side of pinion rack is opened and is equipped with the square hole, the inner wall in square hole and the outside sliding connection of the square bar to.
As a preferred technical scheme of the utility model, first circular port, the outside sliding connection of first circular hole inner wall and second dead lever are opened to the front side of L shape pole.
As a preferred technical scheme of the utility model, the second circular port, the inner wall of second circular port and the outside sliding connection of third dead lever have been seted up to the left end of second carriage release lever.
(III) advantageous effects
Compared with the prior art, the utility model provides a dust proof optical module shell subassembly possesses following beneficial effect:
1. this dust proof optical module shell subassembly, through setting up the pinion rack, first flexible steel cable, L shape pole, first carriage release lever cooperatees, L shape pole slides on the second dead lever, L shape pole drives left pinion rack and slides on the square bar, left pinion rack passes through the pinion rack removal that the gear drove the right side, make two pinion racks remove to the direction that is close to each other, left pinion rack slides on first dead lever through the first carriage release lever that first flexible steel cable drove the front side, the pinion rack on right side passes through the first carriage release lever removal that the flexible steel cable of second drove the rear side, first carriage release lever drives first ball and first draw-in groove phase separation, the module casing drives the second diaphragm and slides on first diaphragm, the effect of quick dismantlement module casing has been reached this moment.
2. This dust proof optical module shell subassembly cooperatees through setting up the second carriage release lever, connecting rod, third dead lever and second ball, and the circular block passes through the connecting rod and drives the square and remove, and the square drives the second carriage release lever and slides on the third dead lever, and the second carriage release lever drives the second draw-in groove phase separation on second ball and the second trapezoidal piece, and the baffle drives the dust screen and removes, has reached this moment when the connecting box is not used, and it has played dirt-proof effect to close the baffle.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a left perspective view of FIG. 1;
FIG. 3 is a schematic structural view of the rear left oblique solid of FIG. 1;
FIG. 4 is a schematic view of the front side of the junction box of FIG. 1 with a cut-away perspective view;
FIG. 5 is a schematic top cut-away perspective view of the junction box of FIG. 1;
FIG. 6 is an enlarged view of part A of FIG. 5;
FIG. 7 is an enlarged view of the portion B in FIG. 4;
FIG. 8 is an enlarged view of the portion C of FIG. 2;
FIG. 9 is an enlarged view of a portion D of FIG. 3;
fig. 10 is an enlarged schematic view of part E of fig. 4.
In the figure: 1. a connecting box; 2. a square bar; 3. a toothed plate; 4. a gear; 5. a first flexible steel cord; 6. a second flexible steel cord; 7. a first fixing lever; 8. a first movable bar; 9. a first spring; 10. a rectangular block; 11. A second fixing bar; 12. an L-shaped rod; 13. a second spring; 14. a module housing; 15. a first trapezoidal block; 16. a third fixing bar; 17. a second movable bar; 18. a third spring; 19. a connecting rod; 20. a baffle plate; 21. a second trapezoidal block; 22. a dust screen; 23. a first transverse plate; 24. and the second transverse plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1-10, the present invention provides the following technical solutions: a dust-proof optical module shell assembly comprises a connecting box 1, the right side of the connecting box 1 is provided with an opening, two square rods 2 are fixedly installed between the front inner wall and the rear inner wall of the connecting box 1, toothed plates 3 are slidably sleeved on the square rods 2, gears 4 are rotatably installed on the bottom inner wall of the connecting box 1, the mutually close sides of the two toothed plates 3 are meshed with the gears 4, a first flexible steel rope 5 is fixedly installed on the front side of the left toothed plate 3, a second flexible steel rope 6 is fixedly installed on the rear side of the rear toothed plate 3, first fixing rods 7 are fixedly installed on the front inner wall and the rear inner wall of the connecting box 1, first moving rods 8 are slidably sleeved on the first fixing rods 7, first balls are embedded on the mutually close sides of the two first moving rods 8, and first springs 9 are fixedly installed between the mutually far ends of the two first moving rods 8 and the inner wall of the connecting box 1, the first spring 9 is movably sleeved on the corresponding first fixed rod 7, the lower surface of the first movable rod 8 is fixedly provided with a rectangular block 10, the rear inner wall of the front inner wall of the connecting box 1 is rotatably provided with a second fixed pulley of the first fixed pulley, the end parts of the first flexible steel rope 5 and the second flexible steel rope 6 bypass one side of the corresponding first fixed pulley and the corresponding second fixed pulley and are fixedly connected with one side of the rectangular block 10, the left inner wall of the connecting box 1 is provided with a rectangular hole, a second fixed rod 11 is fixedly arranged between the front inner wall and the rear inner wall of the rectangular hole, an L-shaped rod 12 is slidably sleeved on the second fixed rod 11, a second spring 13 is fixedly arranged between the front side of the L-shaped rod 12 and the front inner wall of the rectangular hole, the second spring 13 is movably sleeved on the second fixed rod 11, the right end of the L-shaped rod 12 is fixedly connected with the left side of the left toothed plate 3, the right side of the connecting box 1 is movably contacted with a module shell 14, the equal fixed mounting in front side rear side of module housing 14 has first trapezoidal piece 15, and one side that two first trapezoidal pieces 15 kept away from each other all sets up first inclined plane, and first draw-in groove has all been seted up to one side that two first trapezoidal pieces 15 kept away from each other, first ball and first inclined plane rolling contact, first carriage release lever 8 clamps with first draw-in groove mutually.
In this embodiment, the first spring 9 and the second spring 13 are provided to achieve the effect of returning.
Specifically, the upper surface of the connecting box 1 is provided with a rectangular groove, a third fixing rod 16 is fixedly installed on the inner wall of the left side of the rectangular groove, a second moving rod 17 is slidably sleeved on the third fixing rod 16, a third spring 18 is fixedly installed between the left end of the second moving rod 17 and the inner wall of the left side of the rectangular groove, the third spring 18 is movably sleeved on the third fixing rod 16, a second ball is embedded on the right end of the second moving rod 17, a baffle plate 20 is rotatably installed on the upper surface of the connecting box 1, a second trapezoidal block 21 is fixedly installed on the lower surface of the baffle plate 20, the lower surface of the second trapezoidal block 21 is provided with a second inclined plane, a second clamping groove is formed on the lower surface of the second trapezoidal block 21, the second ball is in rolling contact with the second inclined plane, the second moving rod 17 is clamped with the second clamping groove, a square block is fixedly installed on the lower surface of the second moving rod 17, a connecting rod 19 is fixedly installed on the left side of the square, the left end of the connecting rod 19 extends outside the connecting box 1 and is fixedly mounted with a circular block.
In this embodiment, through the setting of circular block, the staff's of being convenient for pulling, the setting of second ball has reduced frictional force.
Specifically, the baffle 20 is embedded with a dust screen 22, two first transverse plates 23 are fixedly mounted on the inner wall of the top of the connecting box 1, square grooves are formed in the first transverse plates 23, two second transverse plates 24 are fixedly mounted on the upper surface of the module shell 14, and the second transverse plates 24 are in movable contact with the corresponding square grooves.
In this embodiment, the dust screen 22 is provided to prevent dust.
Specifically, the front side of pinion rack 3 is opened and is equipped with the square hole, the inner wall in square hole and the outside sliding connection of the square bar 2 to.
In this embodiment, the inner wall through the square hole and the outside sliding connection of square rod 2 to for pinion rack 3 can only the back-and-forth movement, fixes a position pinion rack 3, prevents the phenomenon of skew.
Specifically, a first circular hole is formed in the front side of the L-shaped rod 12, and the inner wall of the first circular hole is slidably connected with the outer side of the second fixing rod 11.
In this embodiment, the inner wall of the first circular hole is slidably connected to the outer side of the second fixing rod 11, so that the L-shaped rod 12 can only move back and forth, the L-shaped rod 12 is positioned, and the phenomenon of deviation is prevented.
Specifically, a second circular hole is formed in the left end of the second moving rod 17, and the inner wall of the second circular hole is slidably connected with the outer side of the third fixing rod 16.
In this embodiment, the inner wall of the second circular hole is slidably connected to the outer side of the third fixing rod 16, so that the second moving rod 17 can only move left and right, the second moving rod 17 is positioned, and the phenomenon of deviation is prevented.
The utility model discloses a theory of operation and use flow: when the module shell 14 needs to be detached, the L-shaped rod 12 is held by a hand to move backwards, the L-shaped rod 12 slides on the second fixing rod 11, the L-shaped rod 12 stretches the second spring 13 in the moving process, the L-shaped rod 12 drives the left toothed plate 3 to slide on the square rod 2, the left toothed plate 3 drives the right toothed plate 3 to move through the gear 4, so that the two toothed plates 3 move towards the direction close to each other, the left toothed plate 3 drives the first moving rod 8 at the front side to slide on the first fixing rod 7 through the first flexible steel rope 5, the right toothed plate 3 drives the first moving rod 8 at the rear side to move through the second flexible steel rope 6, so that the two first moving rods 8 move towards the direction away from each other, the first moving rod 8 compresses the corresponding first spring 9 in the moving process, the first moving rod 8 drives the first ball to separate from the first clamping groove, after the module housing 14 is moved rightwards, the module housing 14 drives the second transverse plate 24 to slide on the first transverse plate 23, and then the effect of quickly disassembling the module housing 14 is achieved;
when the baffle 20 needs to be closed, the round block is pulled leftwards, the round block drives the square block to move leftwards through the connecting rod 19, the square block drives the second moving rod 17 to slide on the third fixing rod 16, the second moving rod 17 compresses the third spring 18 in the moving process, the second moving rod 17 drives the second ball to be separated from the second clamping groove in the second trapezoidal block 21, then the baffle 20 is rotated, the baffle 20 drives the dustproof net 22 to move, and the dustproof effect is achieved when the connecting box 1 is not used;
during installation, move module housing 14 leftwards, module housing 14 drives second diaphragm 24 and first diaphragm 23 contact and slide on first diaphragm 23, module housing 14 drives first trapezoidal piece 15 and first ball contact and extrusion, under the effect of extrusion force, first ball drives first carriage release lever 8 and slides on corresponding first dead lever 7, first carriage release lever 8 compresses corresponding first spring 9 at the in-process that removes, when first ball and first draw-in groove are to this moment, first spring 9 under compression state resets this moment, first spring 9 drives first carriage release lever 8 and first draw-in groove and clamps mutually, the effect of quick fixed module housing 14 has been reached this moment.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A dust-proof light module housing assembly comprising a connection box (1), characterized in that: establish to the opening on the right side of connecting box (1), fixed mounting has two square bars (2) between the front side inner wall of connecting box (1) and the rear side inner wall, sliding sleeve is equipped with pinion rack (3) on square bar (2), rotate on the bottom inner wall of connecting box (1) and install gear (4), one side that two pinion rack (3) are close to each other meshes with gear (4) mutually, the front side fixed mounting that is located left pinion rack (3) has first flexible steel cable (5), the rear side fixed mounting that is located pinion rack (3) of rear side has second flexible steel cable (6), equal fixed mounting has first dead lever (7) on the front side inner wall of connecting box (1) and the rear side inner wall, sliding sleeve is equipped with first carriage release lever (8) on first dead lever (7), one side that two first carriage release levers (8) are close to each other all has first ball, fixed mounting has first spring (9) between the tip that two first carriage release levers (8) kept away from each other and the inner wall of connecting box (1) The first spring (9) is movably sleeved on the corresponding first fixed rod (7), the lower surface of the first movable rod (8) is fixedly provided with a rectangular block (10), one side of the front inner wall of the connecting box (1) which is provided with a second fixed pulley of the first fixed pulley is rotatably arranged on the rear inner wall, the end parts of the first flexible steel rope (5) and the second flexible steel rope (6) bypass the corresponding first fixed pulley and the second fixed pulley and are fixedly connected with one side of the rectangular block (10), the left inner wall of the connecting box (1) is provided with a rectangular hole, a second fixed rod (11) is fixedly arranged between the front inner wall and the rear inner wall of the rectangular hole, an L-shaped rod (12) is slidably sleeved on the second fixed rod (11), a second spring (13) is fixedly arranged between the front side of the L-shaped rod (12) and the front inner wall of the rectangular hole, and the second spring (13) is movably sleeved on the second fixed rod (11), the right-hand member of L shape pole (12) and the left side fixed connection of left pinion rack (3), the right side movable contact of connecting box (1) has module casing (14), the equal fixed mounting in front side rear side of module casing (14) has first trapezoidal piece (15), one side that two first trapezoidal pieces (15) kept away from each other all sets up first inclined plane, first draw-in groove has all been seted up to one side that two first trapezoidal pieces (15) kept away from each other, first ball and first inclined plane rolling contact, first carriage release lever (8) clamp with first draw-in groove mutually.
2. A dust-proof light module housing assembly as claimed in claim 1, wherein: the upper surface of the connecting box (1) is provided with a rectangular groove, a third fixing rod (16) is fixedly arranged on the inner wall of the left side of the rectangular groove, a second moving rod (17) is sleeved on the third fixing rod (16) in a sliding manner, a third spring (18) is fixedly arranged between the left end of the second moving rod (17) and the inner wall of the left side of the rectangular groove, the third spring (18) is movably sleeved on the third fixing rod (16), the right end of the second moving rod (17) is embedded with a second ball, the upper surface of the connecting box (1) is rotatably provided with a baffle plate (20), the lower surface of the baffle plate (20) is fixedly provided with a second trapezoidal block (21), the lower surface of the second trapezoidal block (21) is provided with a second inclined surface, the lower surface of the second trapezoidal block (21) is provided with a second clamping groove, the second ball is in rolling contact with the second inclined surface, and the second moving rod (17) is clamped with the second clamping groove, the lower surface of the second movable rod (17) is fixedly provided with a square block, the left side of the square block is fixedly provided with a connecting rod (19), and the left end of the connecting rod (19) extends out of the connecting box (1) and is fixedly provided with a round block.
3. A dust-proof light module housing assembly as claimed in claim 2, wherein: the dustproof net (22) is embedded on the baffle (20), two first transverse plates (23) are fixedly mounted on the inner wall of the top of the connecting box (1), square grooves are formed in the first transverse plates (23), two second transverse plates (24) are fixedly mounted on the upper surface of the module shell (14), and the second transverse plates (24) are in movable contact with the corresponding square grooves.
4. A dust-proof light module housing assembly as claimed in claim 1, wherein: the front side of pinion rack (3) is opened and is equipped with the square hole, the inner wall in square hole and the outside sliding connection of square pole (2) to.
5. A dust-proof light module housing assembly as claimed in claim 1, wherein: the front side of L shape pole (12) is opened and is equipped with first circular port, the outside sliding connection of first circular port inner wall and second dead lever (11).
6. A dust-proof light module housing assembly as claimed in claim 2, wherein: and a second circular hole is formed in the left end of the second moving rod (17), and the inner wall of the second circular hole is connected with the outer side of the third fixing rod (16) in a sliding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023092519.7U CN214125294U (en) | 2020-12-21 | 2020-12-21 | Dust-proof optical module shell assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023092519.7U CN214125294U (en) | 2020-12-21 | 2020-12-21 | Dust-proof optical module shell assembly |
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| Publication Number | Publication Date |
|---|---|
| CN214125294U true CN214125294U (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023092519.7U Active CN214125294U (en) | 2020-12-21 | 2020-12-21 | Dust-proof optical module shell assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114130986A (en) * | 2021-12-02 | 2022-03-04 | 维亘精密机械(苏州)有限公司 | Easy-to-remove die-casting die convenient for adjusting cavity |
-
2020
- 2020-12-21 CN CN202023092519.7U patent/CN214125294U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114130986A (en) * | 2021-12-02 | 2022-03-04 | 维亘精密机械(苏州)有限公司 | Easy-to-remove die-casting die convenient for adjusting cavity |
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Effective date of registration: 20240411 Address after: Unit 701-3, Door 3, Building 9, No. 9 Meiyuan Road, Huayuan Industrial Zone, Binhai New Area, Tianjin, 300450 Patentee after: Tianjin Xingshengyuan Technology Co.,Ltd. Country or region after: China Address before: 212000 room 509, building 21, Kangtai garden, 162 dingmaoqiao Road, Zhenjiang New District, Jiangsu Province Patentee before: Zhenjiang Shengdi Photoelectric Technology Co.,Ltd. Country or region before: China |
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